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LICENSE

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+MIT License
+
+Copyright (c) 2026 Intern Robotics
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+---
+license: mit
+language:
+- en
+tags:
+- robotics
+- simulation
+- wet-op-bench
+---
+
+# WET-OP Bench — Validation Example
+
+This release contains exactly **one episode** for **task 01: pouring from an Erlenmeyer flask into a graduated cylinder**. It provides the simulator scene, robot assets, task configuration and saved initial state. It contains **no recorded trajectory or LMDB database**.
+
+This is a single initialization example, not the complete validation set and not a basis for reporting full-benchmark performance. No other validation episodes, test episodes or private holdout episodes are included.
+
+## Contents
+
+- `saved/tasks/scientific_experiments/task_01_pour_flask_to_cylinder/validation_mixed_1/000/meta_info.pkl`: saved task state and instruction. Recording counters are cleared; initial task data are preserved.
+- `saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/`: original scene and its dependencies, with portable references.
+- `saved/assets/robot_usds/lift2_scientific_experiments/`: robot assets.
+- `configs/tasks/scientific_experiments/task_01_pour_flask_to_cylinder/validation/`: single-case configuration and selector.
+- `runtime_dependencies.json`: simulator and material requirements.
+- `manifest.jsonl`: file sizes and SHA-256 digests.
+
+The scene background, object geometry, initial state and physics settings are preserved. `public_validation` is the publication directory name, not a newly generated background.
+
+## Download and load
+
+```python
+from huggingface_hub import snapshot_download
+path = snapshot_download(
+    repo_id="InternRobotics/WET-OP-Bench-Validation",
+    repo_type="dataset",
+    local_dir="WET-OP-Bench-Validation",
+)
+```
+
+Use an isolated GenManip-Sim checkout compatible with Isaac Sim 4.1 and the scientific-experiment Lift2 tasks. Place the downloaded `saved/assets`, `saved/tasks`, and configuration entries at their matching repository-relative locations. Select `scientific_experiments/task_01_pour_flask_to_cylinder/validation/mixed/mixed_1.yml`. The simulator and GenManip-Sim code are not included here. `meta_info.pkl` is a Python pickle intended for the trusted GenManip loader.
+
+Isaac Sim supplies the built-in `OmniPBR.mdl` and `OmniGlass.mdl` material modules. The tabletop shader references the official NVIDIA `Plastic_Thick_Translucent.mdl` URL recorded in `runtime_dependencies.json`; network access is needed on first load. This shader is byte-identical to the original runtime material and is not bundled in this dataset.
+
+## Verification and limitations
+
+The package passed isolated Isaac Sim 4.1 initialization and 20 hold steps with four camera observations. Geometry, physics and material values were compared against the original scene. Paired reset and final images preserve its appearance. This is an initialization/packaging check, not a successful pouring demonstration or policy evaluation. The original initial camera framing is retained: some views crop the flask rim or do not fully show the receiving container.
+
+## Related dataset
+
+[WET-OP-Bench-Train](https://huggingface.co/datasets/InternRobotics/WET-OP-Bench-Train) contains 7,000 demonstrations across 14 task folders.
+
+## Provenance and license
+
+All scene and model assets were created internally by the AI Lab team. The team's released data and assets use the MIT License in `LICENSE`. Bundled NVIDIA material software modules retain their embedded upstream license notices. The bundled `r5a_left_arm.yml` cuRobo planner configuration retains its original NVIDIA notice and `LICENSE.curobo`, which limits that software configuration to research/evaluation use. Robot-specific assets are team-authored. NVIDIA runtime software and the remotely referenced shader remain subject to their original terms; the dataset MIT license does not relicense them.
+
+## Release status
+
+Upload in progress. Wait for the release status to change to verified before using a complete snapshot.

configs/tasks/scientific_experiments/task_01_pour_flask_to_cylinder/validation/mixed/mixed_1.yml

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+demonstration_configs:
+- domain_randomization: &id001
+    cameras:
+      config_path: configs/cameras/fixed_camera_lift2_scientific_experiments.yml
+      type: fixed
+    random_environment:
+      has_wall: false
+      hdr: false
+      robot_base_position: false
+      robot_eepose: false
+      table_texture: false
+      table_type: false
+      wall_texture: false
+    rewrite_instruction: false
+    material_overrides:
+    - prim_path: /World/_scene/LiquidMaterial/PreviewSurface
+      attribute: inputs:diffuseColor
+      value:
+      - 0.24
+      - 0.83
+      - 0.68
+  generation_config: &id002
+    action_path:
+      mode: auto
+      robot: 0
+    articulation: []
+    goal:
+    - []
+    mode: manual
+    planner: curobo
+  instruction: no instruction
+  layout_config: &id003
+    ignored_objects: []
+    type: None
+  mode: manual
+  num_episode: 50
+  object_config: {}
+  preprocess_config: []
+  robots:
+  - &id004
+    type: manip/lift2/R5a
+    usd_path: robot_usds/lift2_scientific_experiments/robot.usd
+    position:
+    - 0.0
+    - -0.7
+    - 0.0
+    orientation:
+    - 0.7071067812
+    - 0.0
+    - 0.0
+    - 0.7071067812
+  table_uid: table
+  physics_scene_config:
+    BounceThreshold: 0.0
+    BroadphaseType: GPU
+    CollisionSystem: PCM
+    EnableCCD: false
+    EnableEnhancedDeterminism: false
+    EnableExternalForcesEveryIteration: false
+    EnableGPUDynamics: true
+    EnableResidualReporting: false
+    EnableSceneQuerySupport: true
+    EnableStabilization: true
+    FrictionCorrelationDistance: 0.02500000037252903
+    FrictionOffsetThreshold: 0.03999999910593033
+    FrictionType: patch
+    GpuCollisionStackSize: 67108864
+    GpuFoundLostAggregatePairsCapacity: 10485760
+    GpuFoundLostPairsCapacity: 262144
+    GpuHeapCapacity: 67108864
+    GpuMaxDeformableSurfaceContacts: 1048576
+    GpuMaxHairContacts: 1048576
+    GpuMaxNumPartitions: 8
+    GpuMaxParticleContacts: 1048576
+    GpuMaxRigidContactCount: 524288
+    GpuMaxRigidPatchCount: 81920
+    GpuMaxSoftBodyContacts: 1048576
+    GpuTempBufferCapacity: 16777216
+    GpuTotalAggregatePairsCapacity: 1024
+    InvertCollisionGroupFilter: false
+    MaxBiasCoefficient: Inf
+    MaxPositionIterationCount: 255
+    MaxVelocityIterationCount: 255
+    MinPositionIterationCount: 1
+    MinVelocityIterationCount: 0
+    ReportKinematicKinematicPairs: false
+    ReportKinematicStaticPairs: false
+    SolverType: TGS
+    TimeStepsPerSecond: 120
+    UpdateType: Synchronous
+  task_name: scientific_experiments/task_01_pour_flask_to_cylinder/validation_mixed_1
+  usd_name: scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/scene
+  env_vars:
+    MDL_SYSTEM_PATH: /isaac-sim/materials/:{ASSETS_DIR}/miscs/mdl/ebench/mdl
+evaluation_configs:
+- domain_randomization: *id001
+  generation_config: *id002
+  instruction: no instruction
+  layout_config: *id003
+  mode: manual
+  num_test: 1
+  num_steps: 3500
+  preserve_score_on_invalid_state: true
+  warmup_steps: 300
+  physics_dt: 0.0083333333
+  rendering_dt: 0.0083333333
+  object_config: {}
+  physics_scene_config:
+    BounceThreshold: 0.0
+    BroadphaseType: GPU
+    CollisionSystem: PCM
+    EnableCCD: false
+    EnableEnhancedDeterminism: false
+    EnableExternalForcesEveryIteration: false
+    EnableGPUDynamics: true
+    EnableResidualReporting: false
+    EnableSceneQuerySupport: true
+    EnableStabilization: true
+    FrictionCorrelationDistance: 0.02500000037252903
+    FrictionOffsetThreshold: 0.03999999910593033
+    FrictionType: patch
+    GpuCollisionStackSize: 67108864
+    GpuFoundLostAggregatePairsCapacity: 10485760
+    GpuFoundLostPairsCapacity: 262144
+    GpuHeapCapacity: 67108864
+    GpuMaxDeformableSurfaceContacts: 1048576
+    GpuMaxHairContacts: 1048576
+    GpuMaxNumPartitions: 8
+    GpuMaxParticleContacts: 1048576
+    GpuMaxRigidContactCount: 524288
+    GpuMaxRigidPatchCount: 81920
+    GpuMaxSoftBodyContacts: 1048576
+    GpuTempBufferCapacity: 16777216
+    GpuTotalAggregatePairsCapacity: 1024
+    InvertCollisionGroupFilter: false
+    MaxBiasCoefficient: Inf
+    MaxPositionIterationCount: 255
+    MaxVelocityIterationCount: 255
+    MinPositionIterationCount: 1
+    MinVelocityIterationCount: 0
+    ReportKinematicKinematicPairs: false
+    ReportKinematicStaticPairs: false
+    SolverType: TGS
+    TimeStepsPerSecond: 120
+    UpdateType: Synchronous
+  preprocess_config:
+  - config:
+      Restitution: 0.0
+      DynamicFriction: 5
+      StaticFriction: 5
+      FrictionCombineMode: max
+      RestitutionCombineMode: multiply
+      ImprovePatchFriction: true
+    robot_type: lift2
+    type: set_robot_physics_material
+  robots:
+  - *id004
+  table_uid: table
+  task_name: scientific_experiments/task_01_pour_flask_to_cylinder/validation_mixed_1
+  usd_name: scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/scene
+  env_vars:
+    MDL_SYSTEM_PATH: /isaac-sim/materials/:{ASSETS_DIR}/miscs/mdl/ebench/mdl

configs/tasks/scientific_experiments/task_01_pour_flask_to_cylinder/validation/validation.json

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+[
+  "scientific_experiments/task_01_pour_flask_to_cylinder/validation/mixed/mixed_1.yml"
+]

manifest.jsonl

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+{"path": "saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/SubUSDs/materials/OmniPBRBase.mdl", "size": 18876, "sha256": "edcc669a238798a4d90ce36bd535282d23f88cddc544d68a532a5b732432788e"}
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+{"path": "saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/SubUSDs/materials/OmniPBR_ClearCoat.mdl", "size": 27986, "sha256": "f9b1d254cfa0c45742de1e0532bd574bb766f69ffe1b66a9b80a816a00e3f329"}
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+{"path": "saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/SubUSDs/textures/grain_albedo.png", "size": 758417, "sha256": "9eb0f6ef31cbf5a7c73bdb7d9129d5bbd52cd1bd5f562ac666ae7b35827f3aa9"}
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+{"path": "saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/scene.usd", "size": 18360430, "sha256": "f4957fd963781936035b94c81539b61cb6ea95b9c21d8d8e916f71cfadf01f7b"}
+{"path": "saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/scene.usda", "size": 3203, "sha256": "b27be191877415fa90923ff72ba5147f0818226c43464dd1c0da5ee63bf19715"}
+{"path": "saved/tasks/scientific_experiments/task_01_pour_flask_to_cylinder/validation_mixed_1/000/meta_info.pkl", "size": 21801, "sha256": "2c1b076bf353abd13022f1f31dd398b77c09f8abae13e369e8852df9857a45f9"}

runtime_dependencies.json

@@ -0,0 +1,17 @@
+{
+  "isaac_sim": "4.1",
+  "material": {
+    "url": "https://omniverse-content-production.s3.us-west-2.amazonaws.com/Materials/vMaterials_2/Plastic/Plastic_Thick_Translucent.mdl",
+    "sha256": "e6fc7403fce0da94912d3aa2ced0638a2aafb4c9cd504a745743f4273b7dc333",
+    "redistributed": false
+  },
+  "builtin_mdl": [
+    "OmniPBR.mdl",
+    "OmniGlass.mdl"
+  ],
+  "planner_configuration": {
+    "path": "saved/assets/miscs/curobo/R5a/r5a_left_arm.yml",
+    "license": "saved/assets/miscs/curobo/R5a/LICENSE.curobo",
+    "scope": "cuRobo template/configuration; research or evaluation use"
+  }
+}

saved/assets/_dependencies/public_validation/08d49f866cba1541/pbr.mdl

@@ -0,0 +1,910 @@
+/******************************************************************************
+ * Copyright 2022 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+mdl 1.8;
+
+import ::anno::*;
+import ::base::*;
+import ::df::*;
+import ::math::*;
+import ::state::*;
+import ::tex::*;
+import ::scene::*;
+import ::limits::*;
+
+export enum gltf_alpha_mode {
+    opaque,
+    mask,
+    blend
+};
+
+export enum gltf_wrapping_mode {
+    clamp_to_edge = 33071,
+    mirrored_repeat = 33648,
+    repeat = 10497
+};
+
+export struct gltf_texture_lookup_value
+{
+    bool valid = false;
+    float4 value = float4(0.0, 0.0, 0.0, 1.0);
+};
+
+export struct gltf_normal_texture_lookup_value
+{
+    bool valid = false;
+    float3 value = float3(0.0);
+};
+
+float compute_opacity(gltf_alpha_mode mode, float alpha, float cutoff) {
+    switch (mode) {
+        case mask:
+            return alpha < cutoff ? 0.0 : 1.0;
+        case blend:
+            return alpha;
+        case opaque:
+            return 1.0;
+    }
+}
+
+float4 gltf_prepare_tex_float4(gltf_texture_lookup_value sample) {
+    return sample.valid ? sample.value : float4(1.0);
+}
+
+float3 gltf_prepare_tex_float3(gltf_texture_lookup_value sample) {
+    return sample.valid ? float3(sample.value.x, sample.value.y, sample.value.z) : float3(1.0);
+}
+
+float3 gltf_prepare_normal(gltf_normal_texture_lookup_value sample) {
+    return sample.valid ? sample.value : state::normal();
+}
+
+float gltf_prepare_occlusion(gltf_texture_lookup_value sample, float occlusion_strength) {
+    float occulusion = sample.valid ? sample.value.x : 1.0;
+    return math::lerp(1.0, occulusion, occlusion_strength);
+}
+
+color gltf_perpare_emission(gltf_texture_lookup_value sample, color emissive_factor) {
+    return emissive_factor * color(gltf_prepare_tex_float3(sample));
+}
+
+::tex::wrap_mode convert_wrap_mode(gltf_wrapping_mode mode)
+{
+    if (mode == clamp_to_edge)
+        return ::tex::wrap_clamp;
+    if (mode == mirrored_repeat)
+        return ::tex::wrap_mirrored_repeat;
+
+    return ::tex::wrap_repeat;
+}
+
+float2 khr_texture_transform_apply(
+    float2 coord,
+    float2 offset,
+    float rotation,
+    float2 scale
+)
+{
+    // MDL expects the texture coordinate origin at the bottom left (gltf at top left)
+    // Assuming the renderer follows the MDL specification in which case the coordinates
+    // have been flipped either while loading the glTF geometry or while setting up the state.
+
+    // Undo the flipping for the transformation to get into the original glTF texture space.
+    coord = float2(coord.x, 1.0f - coord.y);
+
+    // first scale
+    coord = coord * scale;
+    // then rotate
+    float cos_rotation = ::math::cos(rotation);
+    float sin_rotation = ::math::sin(rotation);
+    coord = float2(cos_rotation * coord.x + sin_rotation * coord.y, cos_rotation * coord.y - sin_rotation * coord.x);
+    // then translate
+    coord = coord + offset;
+
+    // flip back
+    coord = float2(coord.x, 1.0f - coord.y);
+    return coord;
+}
+
+export gltf_texture_lookup_value gltf_texture_lookup(
+    uniform texture_2d texture = texture_2d()
+    [[
+        anno::in_group("Source"),
+        anno::display_name("Texture"),
+        anno::description("Texture File")
+    ]],
+    uniform int tex_coord_index = 0 
+    [[ 
+        anno::in_group("Source"),
+        anno::display_name("Coordinate Set"),
+        anno::description("Texture coordinate set (UV-Set). KHR_texture_transform overrides the textureInfo texCoord value if supplied."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+
+    uniform float2 offset = float2(0.0f, 0.0)
+    [[
+        anno::in_group("Texture Transform"),
+        anno::display_name("Offset"),
+        anno::description("The offset of the UV coordinate origin as a factor of the texture dimensions."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+    uniform float rotation = 0.0
+    [[
+        anno::hard_range(0.0, 2.0 * ::math::PI),
+        anno::in_group("Texture Transform"),
+        anno::display_name("Rotation"),
+        anno::description("Rotate the UVs by this many radians counter-clockwise around the origin. This is equivalent to a similar rotation of the image clockwise."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+    uniform float2 scale = float2(1.0f, 1.0f)
+    [[
+        anno::in_group("Texture Transform"),
+        anno::display_name("Scale"),
+        anno::description("The scale factor applied to the components of the UV coordinates."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+
+    uniform gltf_wrapping_mode wrap_s = repeat
+    [[ 
+        anno::in_group("Sampler"),
+        anno::display_name("Wrap S"),
+        anno::description("S (U) wrapping mode."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+    uniform gltf_wrapping_mode wrap_t = repeat
+    [[
+        anno::in_group("Sampler"),
+        anno::display_name("Wrap T"),
+        anno::description("T (V) wrapping mode."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]]
+)
+[[
+    anno::author("NVIDIA Corporation"),
+    anno::display_name("GLTF Texture Lookup"),
+    anno::description("Function to read a color or color with alpha channel texture.")
+]]
+{
+    gltf_texture_lookup_value tex_ret;
+    if (!tex::texture_isvalid(texture))
+        return tex_ret;
+
+    float3 tex_coord3 = state::texture_coordinate(tex_coord_index);
+    float2 tex_coord = khr_texture_transform_apply(
+        coord: float2(tex_coord3.x, tex_coord3.y),
+        offset: offset,
+        rotation: rotation,
+        scale: scale);
+    
+    tex_ret.value = tex::lookup_float4(
+        tex: texture,
+        coord: tex_coord,
+        wrap_u: convert_wrap_mode(wrap_s),
+        wrap_v: convert_wrap_mode(wrap_t));
+    tex_ret.valid = true;
+    return tex_ret;
+}
+
+export gltf_normal_texture_lookup_value gltf_normal_texture_lookup(
+    uniform texture_2d texture = texture_2d()
+    [[
+        anno::in_group("Source"),
+        anno::display_name("Texture"),
+        anno::description("Texture File")
+    ]],
+    uniform float normal_scale_factor = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Source"),
+        anno::display_name("Normal Scale Factor"),
+        anno::description("Strength of the base layer normal mapping."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+    uniform int tex_coord_index = 0 
+    [[
+        anno::in_group("Source"),
+        anno::display_name("Coordinate Set"),
+        anno::description("Texture coordinate set (UV-Set). KHR_texture_transform overrides the textureInfo texCoord value if supplied."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+    uniform int tex_tangent_index = 0 
+    [[
+        anno::hidden(),
+        anno::in_group("Source"),
+        anno::display_name("Coordinate Set"),
+        anno::description("Tangent to be to construct the tangent frame."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+
+    uniform float2 offset = float2(0.0f, 0.0)
+    [[
+        anno::in_group("Texture Transform"),
+        anno::display_name("Offset"),
+        anno::description("The offset of the UV coordinate origin as a factor of the texture dimensions."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+    uniform float rotation = 0.0
+    [[
+        anno::hard_range(0.0, 2.0 * ::math::PI),
+        anno::in_group("Texture Transform"),
+        anno::display_name("Rotation"),
+        anno::description("Rotate the UVs by this many radians counter-clockwise around the origin. This is equivalent to a similar rotation of the image clockwise."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+    uniform float2 scale = float2(1.0f, 1.0f)
+    [[
+        anno::in_group("Texture Transform"),
+        anno::display_name("Scale"),
+        anno::description("The scale factor applied to the components of the UV coordinates."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+
+    uniform gltf_wrapping_mode wrap_s = repeat
+    [[
+        anno::in_group("Sampler"),
+        anno::display_name("Wrap S"),
+        anno::description("S (U) wrapping mode."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+    uniform gltf_wrapping_mode wrap_t = repeat
+    [[
+        anno::in_group("Sampler"),
+        anno::display_name("Wrap T"),
+        anno::description("T (V) wrapping mode."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]]
+)
+[[
+    anno::author("NVIDIA Corporation"),
+    anno::display_name("GLTF Normal Texture Lookup"),
+    anno::description("Function to read a normal texture.")
+]]
+{
+    gltf_normal_texture_lookup_value tex_ret;
+    if (!::tex::texture_isvalid(texture))
+        return tex_ret;
+
+    float3 tex_coord3 = state::texture_coordinate(tex_coord_index);
+    float2 tex_coord = khr_texture_transform_apply(
+        coord: float2(tex_coord3.x, tex_coord3.y),
+        offset: offset,
+        rotation: rotation,
+        scale: scale);
+
+    tex_ret.value = base::tangent_space_normal_texture(
+        texture: texture,
+        factor: normal_scale_factor,
+        uvw: base::texture_coordinate_info(
+            position: float3(tex_coord.x, tex_coord.y, tex_coord3.z),
+            tangent_u: state::texture_tangent_u(tex_tangent_index),
+            tangent_v: state::texture_tangent_v(tex_tangent_index)),
+        wrap_u: convert_wrap_mode(wrap_s),
+        wrap_v: convert_wrap_mode(wrap_t));
+    tex_ret.valid = true;
+    return tex_ret;
+}
+
+export material gltf_material(
+    // base color
+    uniform color base_color_factor = color(1.0)
+    [[
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("Base Color Factor"),
+        anno::description("The base color of the material. Multiplied to the 'Base Color Texture' if available.")
+    ]],
+
+    gltf_texture_lookup_value base_color_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("Base Color Texture"),
+        anno::description("The base color of the material. Influenced by the 'Base Color Factor'.")
+    ]],
+
+    // KHR_materials_specular
+    uniform float specular_factor = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Specular"),
+        anno::display_name("Specular Factor"),
+        anno::description("The strength of the specular reflection. Multiplied to the 'Specular Texture' if available.")
+    ]],
+    gltf_texture_lookup_value specular_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Specular"),
+        anno::display_name("Specular Texture"),
+        anno::description("A texture that defines the strength of the specular reflection, stored in the alpha (A) channel. This will be multiplied by the 'Specular Factor'.")
+    ]],
+    uniform color specular_color_factor = color(1.0)
+    [[
+        anno::in_group("Specular"),
+        anno::display_name("Specular Color Factor"),
+        anno::description("The F0 color of the specular reflection (linear RGB). Multiplied to the 'Specular Color Texture' if available.")
+    ]],
+    gltf_texture_lookup_value specular_color_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Specular"),
+        anno::display_name("Specular Color Texture"),
+        anno::description("A texture that defines the F0 color of the specular reflection, stored in the RGB channels and encoded in sRGB. This texture will be multiplied by 'Specular Color Factor'.")
+    ]],
+
+    // metallic roughness
+    uniform float metallic_factor = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("Metallic Factor"),
+        anno::description("The metalness of the material. Select between dielectric (0.0) and metallic (1.0). Multiplied to the 'Metal/Rough Texture' value if available.")
+    ]],
+
+    uniform float roughness_factor = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("Roughness Factor"),
+        anno::description("The roughness of the material. Select between very glossy (0.0) and dull (1.0). Multiplied to the 'Metal/Rough Texture' value if available.")
+    ]],
+    gltf_texture_lookup_value metallic_roughness_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("Metal/Rough Texture"),
+        anno::description("Metallic in the red or blue component and roughness in the green component. Influenced by the 'Metallic Factor' and 'Roughness Factor'."),
+        anno::enable_if("metallic_factor>0.0 || roughness_factor>0.0")
+    ]],
+
+    // KHR_materials_ior
+    uniform float ior = 1.5
+    [[
+        anno::hard_range(1.00, 5.0),
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("IOR"),
+        anno::description("The index of refraction.")
+    ]],
+
+    // normal map
+    gltf_normal_texture_lookup_value normal_texture = gltf_normal_texture_lookup()
+    [[
+        anno::in_group("Normal Mapping"),
+        anno::display_name("Normal Texture"),
+        anno::description("Base layer normal map.")
+    ]],
+
+    // KHR_materials_transmission
+    uniform float transmission_factor = 0.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Transmission"),
+        anno::display_name("Transmission Factor"),
+        anno::description("The base percentage of light that is transmitted through the surface. Multiplied to the 'Transmission Texture' if available.")
+    ]],
+    gltf_texture_lookup_value transmission_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Transmission"),
+        anno::display_name("Transmission Texture"),
+        anno::description("A texture that defines the transmission percentage of the surface, stored in the R channel. Influenced by the 'Transmission Factor'."),
+        anno::enable_if("transmission_factor>0")
+    ]],
+
+    // KHR_materials_sheen
+    uniform color sheen_color_factor = color(0.0)
+    [[
+        anno::in_group("Sheen"),
+        anno::display_name("Sheen Color Factor"),
+        anno::description("The sheen color in linear space. Multiplied to the 'Sheen Color Texture' if available.")
+    ]],
+    gltf_texture_lookup_value sheen_color_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Sheen"),
+        anno::display_name("Sheen Color Texture"),
+        anno::description("The sheen color (RGB). The sheen color is in sRGB transfer function. Influenced by the 'Sheen Color Factor'.")
+    ]],
+    uniform float sheen_roughness_factor = 0.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Sheen"),
+        anno::display_name("Sheen Roughness Factor"),
+        anno::description("The sheen roughness. Multiplied to the 'Sheen Roughness Texture' if available.")
+    ]],
+    gltf_texture_lookup_value sheen_roughness_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Sheen"),
+        anno::display_name("Sheen Roughness Texture"),
+        anno::description("The sheen roughness (Alpha) texture. Influenced by the 'Sheen Roughness Factor'.")
+    ]],
+
+    // KHR_materials_clearcoat
+    uniform float clearcoat_factor = 0.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Clearcoat"),
+        anno::display_name("Clearcoat Factor"),
+        anno::description("Strength of the clearcoat. Multiplied to the 'Clearcoat Texture' if available.")
+    ]],
+    gltf_texture_lookup_value clearcoat_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Clearcoat"),
+        anno::display_name("Clearcoat Texture"),
+        anno::description("Strength of the clearcoat. Influenced by the 'Clearcoat Factor'."),
+        anno::enable_if("clearcoat_factor>0")
+    ]],
+    uniform float clearcoat_roughness_factor = 0.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Clearcoat"),
+        anno::display_name("Clearcoat Roughness Factor"),
+        anno::description("The clearcoat layer roughness. Multiplied to the 'Clearcoat Roughness Texture' if available."),
+        anno::enable_if("clearcoat_factor>0.0")
+    ]],
+    gltf_texture_lookup_value clearcoat_roughness_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Clearcoat"),
+        anno::display_name("Clearcoat Roughness Texture"),
+        anno::description("The clearcoat layer roughness texture. Influenced by the 'Clearcoat Roughness Texture'."),
+        anno::enable_if("clearcoat_factor>0.0 && clearcoat_roughness_factor>0.0")
+    ]],
+    gltf_normal_texture_lookup_value clearcoat_normal_texture = gltf_normal_texture_lookup()
+    [[
+        anno::in_group("Clearcoat"),
+        anno::display_name("Clearcoat Normal"),
+        anno::description("The clearcoat normal map texture."),
+        anno::enable_if("clearcoat_factor>0.0")
+    ]],
+
+    // emission
+    uniform color emissive_factor = color(0.0)
+    [[
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Factor"),
+        anno::description("The emissive color of the material. Multiplied to the 'Emissive Texture' if available.")
+    ]],
+    gltf_texture_lookup_value emissive_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Texture"),
+        anno::description("The emissive map texture. Influenced by the 'Emissive Factor'."),
+        anno::enable_if("::math::average(emissive_factor)>0.0")
+    ]],
+    // KHR_materials_emissive_strength
+    uniform float emissive_strength = 1.0
+    [[
+        anno::soft_range(0.0, 1000),
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Strength"),
+        anno::description("The maximum strength of the emissive texture. Multiplied to the 'Emissive Factor'."),
+        anno::enable_if("::math::average(emissive_factor)>0.0")
+    ]],
+
+    // KHR_materials_volume
+    uniform bool thin_walled = true
+    [[
+        anno::in_group("Volume"),
+        anno::display_name("Thin-walled"),
+        anno::description("If true the material is thin-walled. Otherwise the material is a volume boundary. The doubleSided property has no effect on volume boundaries. Note, the thickness parameters are ignored since ray-tracing is used to compute the travelled distance within the volume.")
+    ]],
+    uniform float attenuation_distance = 0.0
+    [[
+        anno::soft_range(0.0, ::limits::FLOAT_MAX),
+        anno::in_group("Volume"),
+        anno::display_name("Attenuation Distance"),
+        anno::description("Density of the medium given as the average distance that light travels in the medium before interacting with a particle. The value is given in world space. A value 0.0 disables it")
+    ]],
+    uniform color attenuation_color = color(1.0)
+    [[
+        anno::in_group("Volume"),
+        anno::display_name("Attenuation Color"),
+        anno::description("The color that white light turns into due to absorption when reaching the attenuation distance.")
+    ]],
+
+    // ambient occlusion
+    gltf_texture_lookup_value occlusion_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Occlusion"),
+        anno::display_name("Occlusion Texture"),
+        anno::description("The occlusion map texture. Influenced by the 'Occlusion Strength'.")
+    ]],
+    uniform float occlusion_strength = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Occlusion"),
+        anno::display_name("Occlusion Strength"),
+        anno::description("A scalar multiplier controlling the amount of occlusion applied. Multiplied to the 'Occlusion Texture'.")
+    ]],
+
+    // alpha
+    uniform gltf_alpha_mode alpha_mode = opaque
+    [[
+        anno::in_group("Opacity"),
+        anno::display_name("Alpha Mode"),
+        anno::description("Select how to interpret the alpha value.")
+    ]],
+    uniform float base_alpha = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Opacity"),
+        anno::display_name("Base Alpha"),
+        anno::description("Select between transparent (0.0) and opaque (1.0). Multiplied to the base color texture alpha channel if available."),
+        anno::enable_if("alpha_mode!=opaque")
+    ]],
+    // alpha for gltf_alpha_mode::mask
+    uniform float alpha_cutoff  = 0.5
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Opacity"),
+        anno::display_name("Alpha Cutoff"),
+        anno::description("Threshold to decide between fully transparent and fully opaque when alpha mode is 'mask'."),
+        anno::enable_if("alpha_mode==mask")
+    ]],
+
+    uniform string vertex_color_name = string("displayColor")
+    [[
+        anno::in_group("Primvar"),
+        anno::display_name("Vertex Color Name"),
+        anno::description("Name of the vertex color primvar usually COLOR_0(gltf), or displayColor(usd)")
+    ]],
+
+    uniform bool use_vertex_color_alpha = false 
+    [[ 
+        anno::in_group("Primvar"),
+        anno::display_name("Use Opacity Channel From Vertex Color"),
+        anno::description("Multipy the Alpha or .w channel from the vertex color with the base alpha value.")
+    ]],
+
+    uniform string vertex_opacity_name = string("displayOpacity")
+    [[
+        anno::in_group("Primvar"),
+        anno::display_name("Vertex Opacity Name"),
+        anno::description("Name of the vertex opacity primvar usually the fourth component of COLOR_0(gltf), or displayOpacity(usd)")
+    ]]
+
+) [[
+    anno::author("NVIDIA Corporation"),
+    anno::display_name("GLTF Material - Metallic-Roughness"),
+    anno::description("Metallic-Roughness Material that takes the GLTF PBR model and KHR extension parameters as input.")
+]] = let {
+
+    // handling GLTF parameters
+    // ------------------------------------------------------------------------
+    
+    float4 base_float4 = gltf_prepare_tex_float4(base_color_texture) * ::scene::data_lookup_float4(vertex_color_name, float4(1.0)); // apply vertex color
+    color base_color = base_color_factor * color(base_float4.x, base_float4.y, base_float4.z);
+    
+    float alpha = base_alpha * (use_vertex_color_alpha == 1 ? base_float4.w : 1.0) * ((vertex_color_name != vertex_opacity_name) ? ::scene::data_lookup_float(vertex_opacity_name, float(1.0)) : 1.0);
+    
+    float3 metallic_roughness = gltf_prepare_tex_float3(metallic_roughness_texture);
+    float metallic = metallic_factor * metallic_roughness.z;
+    float roughness = roughness_factor * metallic_roughness.y;
+
+    float3 normal = gltf_prepare_normal(normal_texture);
+    float occlusion = gltf_prepare_occlusion(occlusion_texture, occlusion_strength);
+    color emissive_color = gltf_perpare_emission(emissive_texture, emissive_factor * math::max(0.0f, emissive_strength));
+
+    // KHR_materials_specular
+    // ------------------------------------------------------------------------
+    color specular_color = color(gltf_prepare_tex_float3(specular_color_texture)) * specular_color_factor;
+    float specular = gltf_prepare_tex_float4(specular_texture).w * specular_factor;
+
+    // KHR_materials_transmission
+    // ------------------------------------------------------------------------
+    float transmission = gltf_prepare_tex_float4(transmission_texture).x * transmission_factor;
+
+    // KHR_materials_sheen
+    // ------------------------------------------------------------------------
+    color sheen_color = color(gltf_prepare_tex_float3(sheen_color_texture)) * sheen_color_factor;
+    float sheen_roughness = gltf_prepare_tex_float4(sheen_roughness_texture).w * sheen_roughness_factor;
+
+    // KHR_materials_clearcoat
+    // ------------------------------------------------------------------------
+    float clearcoat_blend = gltf_prepare_tex_float3(clearcoat_texture).x * clearcoat_factor;
+    float clearcoat_roughness = gltf_prepare_tex_float3(clearcoat_roughness_texture).y * clearcoat_roughness_factor;
+    float clearcoat_roughness2 = clearcoat_roughness * clearcoat_roughness;
+    float3 clearcoat_normal = gltf_prepare_normal(clearcoat_normal_texture);
+    float grazing_refl_coat = math::max((1.0 - clearcoat_roughness), 0.0);
+
+    // metallic roughness model
+    // ------------------------------------------------------------------------
+
+    // compute final roughness by squaring the "roughness" parameter 
+    float roughness2 = roughness * roughness;
+
+    // reduce the reflectivity at grazing angles to avoid "dark edges" 
+    // for high roughness due to the layering
+    float grazing_refl = math::max((1.0 - roughness), 0.0);
+
+    // fresnel term based on ior
+    float f0 = math::pow((ior - 1.0)/(ior + 1.0), 2.0);
+
+    // for the dielectric component we layer the glossy component on top of the diffuse one,
+    // the glossy layer has no color tint
+    bsdf dielectric_component = df::color_custom_curve_layer(
+        weight: color(1.0), // roughness is used to weight between diffuse and glossy
+        normal_reflectivity: math::min(f0 * specular_color, color(1.0)) * specular,
+        grazing_reflectivity: color(grazing_refl * specular),
+        layer: df::microfacet_ggx_vcavities_bsdf(roughness_u: roughness2),
+        base: df::weighted_layer(
+            weight: transmission,
+            base: df::diffuse_reflection_bsdf(tint: base_color * occlusion),
+            layer: df::microfacet_ggx_vcavities_bsdf(
+                roughness_u: roughness2,
+                tint: base_color * occlusion,
+                mode: df::scatter_transmit)),
+        normal: normal
+        );
+
+    // the metallic component doesn't have a diffuse component, 
+    // its only glossy base_color is applied to tint it
+    bsdf metallic_component = df::microfacet_ggx_vcavities_bsdf(
+        tint: base_color * occlusion, 
+        roughness_u: roughness2);
+
+    // apply sheen to the dielectic component
+    // add the sheen_color as weight in an outer layer to be able to blend and disable on default 
+    // otherwise, sheen would be applied and tinted black
+    bsdf dielectric_sheen_component = df::color_weighted_layer(
+        weight: sheen_color, 
+        layer: df::sheen_bsdf(
+            roughness: sheen_roughness * sheen_roughness,
+            tint:  color(1.0),
+            multiscatter_tint: color(1.0),
+            multiscatter: dielectric_component
+        ),
+        base: dielectric_component);
+
+    // final BSDF is a linear blend between dielectric and metallic component
+    bsdf dielectric_metal_mix = df::weighted_layer(
+        weight: metallic,
+        base: dielectric_sheen_component,
+        layer: metallic_component,
+        normal: normal);
+
+    bsdf clearcoated = df::custom_curve_layer(
+        weight: clearcoat_blend,
+        normal_reflectivity: 0.04,
+        grazing_reflectivity: grazing_refl_coat,
+        layer: df::microfacet_ggx_vcavities_bsdf(
+            mode: df::scatter_reflect,
+            roughness_u: clearcoat_roughness2,
+            tint: color(1.0)),
+        base: df::weighted_layer(
+            weight: 1.0,
+            layer: dielectric_metal_mix,
+            normal: normal),
+        normal: clearcoat_normal);
+
+} in material(
+    thin_walled: thin_walled,
+    surface: material_surface(
+        scattering: clearcoated,
+        emission:  material_emission (
+            emission: df::diffuse_edf(),
+            intensity: emissive_color * ::math::PI
+        )
+    ),
+    volume: material_volume(
+        absorption_coefficient: thin_walled ? color(0.0) : (attenuation_distance == 0) ? color(0.0) : -math::log(attenuation_color) / attenuation_distance
+    ),
+    ior: color(ior),
+    geometry: material_geometry(
+        cutout_opacity: compute_opacity(alpha_mode, alpha, alpha_cutoff) 
+    )
+);
+
+
+export material gltf_material_khr_specular_glossiness(
+    // diffuse color
+    uniform color diffuse_factor = color(1.0)
+    [[
+        anno::in_group("PBR Specular Glossiness"),
+        anno::display_name("Diffuse Factor"),
+        anno::description("The diffuse color of the material. Multiplied to the 'Diffuse Texture' if available.")
+    ]],
+    gltf_texture_lookup_value diffuse_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("PBR Specular Glossiness"),
+        anno::display_name("Diffuse Texture"),
+        anno::description("The diffuse color of the material. Influenced by the 'Diffuse Factor'.")
+    ]],
+
+    // specular glossiness
+    uniform color specular_factor = 1.0
+    [[
+        anno::in_group("PBR Specular Glossiness"),
+        anno::display_name("Specular Factor"),
+        anno::description("The specular color of the material. Multiplied to the rgb values of the 'Specular/Glossy Texture' if available.")
+    ]],
+    uniform float glossiness_factor = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("PBR Specular Glossiness"),
+        anno::display_name("Glossiness Factor"),
+        anno::description("The glossiness of the material. Select between diffuse (0.0) and nearly specular (1.0). Multiplied to the alpha value of the 'Specular/Glossy Texture' if available.")
+    ]],
+    gltf_texture_lookup_value specular_glossiness_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("PBR Specular Glossiness"),
+        anno::display_name("Specular/Glossy Texture"),
+        anno::description("The specular-glossiness texture. Influenced by the 'Specular Factor' and 'Glossiness Factor'.")
+    ]],
+
+    // normal map
+    gltf_normal_texture_lookup_value normal_texture = gltf_normal_texture_lookup()
+    [[
+        anno::in_group("Normal Mapping"),
+        anno::display_name("Normal Texture"),
+        anno::description("Base layer normal map.")
+    ]],
+    
+    // emission
+    uniform color emissive_factor = color(0.0)
+    [[
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Factor"),
+        anno::description("The emissive color of the material. Multiplied to the 'Emissive Texture' if available.")
+    ]],
+    gltf_texture_lookup_value emissive_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Texture"),
+        anno::description("The emissive map texture. Influenced by the 'Emissive Factor'."),
+        anno::enable_if("::math::average(emissive_factor)>0.0")
+    ]],
+    // KHR_materials_emissive_strength
+    uniform float emissive_strength = 1.0
+    [[
+        anno::soft_range(0.0, 10000),
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Strength"),
+        anno::description("The maximum strength of the emissive texture. Multiplied to the 'Emissive Factor'."),
+        anno::enable_if("::math::average(emissive_factor)>0.0")
+    ]],
+
+    // ambient occlusion
+    gltf_texture_lookup_value occlusion_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Occlusion"),
+        anno::display_name("Occlusion Texture"),
+        anno::description("The occlusion map texture. Influenced by the 'Occlusion Strength'.")
+    ]],
+    uniform float occlusion_strength = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Occlusion"),
+        anno::display_name("Occlusion Strength"),
+        anno::description("A scalar multiplier controlling the amount of occlusion applied. Multiplied to the 'Occlusion Texture'.")
+    ]],
+
+    // alpha
+    uniform gltf_alpha_mode alpha_mode = opaque
+    [[
+        anno::in_group("Opacity"),
+        anno::display_name("Alpha Mode"),
+        anno::description("Select how to interpret the alpha value.")
+    ]],
+    uniform float base_alpha = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Opacity"),
+        anno::display_name("Base Alpha"),
+        anno::description("Select between transparent (0.0) and opaque (1.0). Multiplied to the base color texture alpha channel if available."),
+        anno::enable_if("alpha_mode!=opaque")
+    ]],
+    // alpha for gltf_alpha_mode::mask
+    
+    uniform float alpha_cutoff = 0.5
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Opacity"),
+        anno::display_name("Alpha Cutoff"),
+        anno::description("Threshold to decide between fully transparent and fully opaque when alpha mode is 'mask'."),
+        anno::enable_if("alpha_mode==mask")
+    ]],
+
+    uniform string vertex_color_name_spec = string("displayColor")
+    [[
+        anno::in_group("Primvar"),
+        anno::display_name("Vertex Color Name"),
+        anno::description("Name of the vertex color primvar usually COLOR_0 'gltf', or displayColor 'usd'.")
+    ]],
+
+    uniform bool use_vertex_color_alpha_spec = false 
+    [[ 
+        anno::in_group("Primvar"),
+        anno::display_name("Use Opacity Channel From Vertex Color"),
+        anno::description("Multipy the Alpha or .w channel from the vertex color with the base alpha value.")
+    ]],
+
+    uniform string vertex_opacity_name_spec = string("displayOpacity")
+    [[
+        anno::in_group("Primvar"),
+        anno::display_name("Vertex Opacity Name"),
+        anno::description("Name of the vertex color primvar usually the .w component of COLOR_0 'gltf', or displayOpacity 'usd'.")
+    ]]
+
+) [[
+    anno::author("NVIDIA Corporation"),
+    anno::display_name("GLTF Material - Specular-Glossiness"),
+    anno::description("Specular-Glossiness Material that takes the GLTF KHR extension parameters as input.")
+]] = let {
+
+    // handling GLTF parameters
+    // ------------------------------------------------------------------------
+    float4 diffuse_float4 = gltf_prepare_tex_float4(diffuse_texture) * ::scene::data_lookup_float4(vertex_color_name_spec, float4(1.0)); // apply vertex color
+    color diffuse = diffuse_factor * color(diffuse_float4.x, diffuse_float4.y, diffuse_float4.z);
+
+    float alpha = base_alpha * (use_vertex_color_alpha_spec == 1 ? diffuse_float4.w : 1.0)  * ((vertex_color_name_spec != vertex_opacity_name_spec) ? ::scene::data_lookup_float(vertex_opacity_name_spec, float(1.0)) : 1.0);
+    //float alpha = base_alpha;
+    float4 specular_glossiness = gltf_prepare_tex_float4(specular_glossiness_texture);
+    color specular = specular_factor * color(specular_glossiness.x, specular_glossiness.y, specular_glossiness.z);
+    float glossiness = glossiness_factor * specular_glossiness.w;
+
+    float3 normal = gltf_prepare_normal(normal_texture);
+    float occlusion = gltf_prepare_occlusion(occlusion_texture, occlusion_strength);
+    color emissive_color = gltf_perpare_emission(emissive_texture, emissive_factor * math::max(0.0f, emissive_strength));
+
+    // specular glossiness model
+    // ------------------------------------------------------------------------
+
+    //color c_diff = diffuse * (1.0 - math::maxvalue(specular));
+    float F_0 = math::max_value(specular);
+    color F_0_tint = F_0==0.0? color(0.0) : (specular/F_0); 
+
+    float a = (1.0 - glossiness) * (1.0 - glossiness);
+
+	// diffuse BRDF
+	bsdf diffuse_brdf = df::diffuse_reflection_bsdf(
+        tint: diffuse * occlusion, 
+        roughness: 0.0);
+
+	// specular BRDF
+	bsdf specular_brdf = df::microfacet_ggx_smith_bsdf(
+        tint: color(occlusion),
+	    roughness_u: a, 
+        roughness_v: a, 
+        tangent_u: state::texture_tangent_u(0));
+	bsdf tinted_specular =  df::directional_factor(normal_tint: F_0_tint, grazing_tint: color(1.0), exponent: 5.0, base: specular_brdf);
+	//- Custom curve for specular/diffuse angular mix
+	bsdf diffuse_specular_mix = df::custom_curve_layer(
+        normal_reflectivity: F_0, 
+        grazing_reflectivity: 1.0, 
+        exponent: 5.0, 
+		weight: 1.0, 
+        layer: tinted_specular, 
+        base: diffuse_brdf, 
+        normal: normal);
+
+} in material(
+    surface: material_surface(
+        scattering: diffuse_specular_mix,
+        emission:  material_emission (
+            emission: df::diffuse_edf(),
+            intensity: emissive_color * ::math::PI
+        )
+    ),
+    geometry: material_geometry(
+        normal: normal,
+        cutout_opacity: compute_opacity(alpha_mode, alpha, alpha_cutoff) 
+    )
+);

saved/assets/_dependencies/public_validation/187c8de5cf3b71e7/OmniGlass_1.mdl

@@ -0,0 +1,260 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+mdl 1.4;
+import ::anno::*;
+import ::base::*;
+
+using OmniGlass_Opacity_1 import OmniGlass_Opacity;
+export annotation distill_off();
+
+
+export material OmniGlass
+(
+    color absorption_coeff = color(0.f, 0.f, 0.f)  // hiding this parameter as it does not exist in the new material
+    [[
+        anno::hidden(),
+        anno::unused()
+    ]],
+    uniform bool use_glass_color_texture = false
+    [[
+        anno::hidden(),
+        anno::unused()
+    ]],
+    uniform color glass_color = color(1.f, 1.f, 1.f)
+    [[
+        anno::display_name("Glass Color"),
+        anno::description("Sets the color of the glass"),
+        anno::hard_range(color(0.0), color(1.0)),
+        anno::in_group("Color")
+    ]],
+    uniform texture_2d glass_color_texture = texture_2d()
+    [[
+        anno::display_name("Glass Color Texture"),
+        anno::description("Specifies the texture to be used for the glass color of the material"),
+        anno::in_group("Color")
+    ]],
+    float frosting_roughness = 0.f
+    [[
+        anno::display_name("Glass Roughness"),
+        anno::description("Sets the roughness of the glass material "),
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Roughness")
+    ]],
+    uniform float glass_ior = 1.491f
+    [[
+        anno::display_name("Glass IOR"),
+        anno::description("Sets IOR of the glass material "),
+        anno::soft_range(1.0f, 4.0f),
+        anno::in_group("Refraction")
+    ]],
+    uniform bool thin_walled = false
+    [[
+        anno::display_name("Thin Walled"),
+        anno::description("When enabled, the material is considered thin-walled. Use this, when you have glass surfaces that are modeled with a single plane"),
+        anno::in_group("Refraction")
+    ]],
+    uniform float depth = 0.001f
+    [[
+        anno::description("Controls how much light is absorbed through the surface"),
+        anno::display_name("Volume Absorption Scale"),
+        anno::in_group("Color"),
+        anno::soft_range(0.f, 1.f),
+        anno::hard_range(0.f, 1000.f)
+    ]],
+    float roughness_texture_influence = 1.f
+    [[
+        anno::display_name("Roughness Texture Influence"),
+        anno::in_group("Roughness"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+    uniform texture_2d roughness_texture = texture_2d()
+    [[
+        anno::description("The roughness texture"),
+        anno::display_name("Roughness Texture"),
+        anno::in_group("Roughness"),
+        anno::usage("roughness")
+    ]],
+    uniform texture_2d reflection_color_texture = texture_2d()
+    [[
+        anno::description("The reflection color texture"),
+        anno::display_name("Reflection Color Texture"),
+        anno::in_group("Reflection")
+    ]],
+    uniform color reflection_color = color(1.f, 1.f, 1.f)
+    [[
+        anno::display_name("Reflection Color"),
+        anno::in_group("Reflection")
+    ]],
+    uniform texture_2d normal_map_texture = texture_2d()
+    [[
+        anno::description("The normal map texture"),
+        anno::display_name("Normal Map Texture"),
+        anno::in_group("Normal"),
+        anno::usage("normal")
+    ]],
+    uniform float normal_map_strength = 1.0
+    [[
+        anno::description("Determines the degree of bumpiness"),
+        anno::display_name("Normal Map Strength"),
+        anno::in_group("Normal"),
+        anno::usage(""),
+        anno::soft_range(0.f, 1.f)
+    ]],
+    uniform float geometry_normal_roughness_strength = 1.f
+    [[
+        anno::hard_range(0.f, 1.f),
+        anno::display_name("Normal map to roughness weight"),
+        anno::description("Enables and weights roughness induced by normal maps"),
+        anno::in_group("Normal")
+    ]],
+    uniform bool flip_tangent_u = false
+    [[
+        anno::display_name("Normal Map Flip U Tangent"),
+        anno::in_group("Normal")
+    ]],
+    uniform bool flip_tangent_v = true
+    [[
+        anno::display_name("Normal Map Flip V Tangent"),
+        anno::in_group("Normal")
+    ]],
+
+    // Cutout Opacity
+    uniform bool enable_opacity = false
+    [[
+        anno::display_name("Enable Opacity"),
+        anno::description("Enables the use of cutout opacity"),
+        anno::in_group("Opacity")
+    ]],
+    uniform float cutout_opacity = 1.0f
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::display_name("Opacity Amount"),
+        anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+        anno::in_group("Opacity")
+    ]],
+    uniform texture_2d cutout_opacity_texture = texture_2d()
+    [[
+        anno::description("The opacity map"),
+        anno::display_name("Opacity Map"),
+        anno::in_group("Opacity"),
+        anno::usage("opacity")
+    ]],
+    uniform base::mono_mode cutout_opacity_mono_source = base::mono_alpha
+    [[
+        anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum"),
+        anno::display_name("Opacity Mono Source"),
+        anno::in_group("Opacity"),
+        anno::usage("")
+    ]],
+    uniform float opacity_threshold = 0.f
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::display_name("Opacity Threshold"),
+        anno::description("If negative, disable cutout_opacity; if 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+        anno::in_group("Opacity")
+    ]],
+
+    // UV Projection Group
+    uniform bool project_uvw = false
+    [[
+        anno::display_name("Enable Project UVW Coordinates"),
+        anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+        anno::in_group("UV")
+    ]],
+    uniform bool world_or_object = false
+    [[
+        anno::display_name("Enable World Space"),
+        anno::description("When set to 'true' uses world space for projection, when 'false' object space is used"),
+        anno::in_group("UV")
+    ]],
+
+    // UV Space Selector
+    uniform int uv_space_index = 0
+    [[
+        anno::display_name("UV Space Index"),
+        anno::description("Choose the UV Space Index to be used"),
+        anno::in_group("UV"),
+        anno::hard_range(0, 3)
+    ]],
+    uniform float2 texture_translate = float2(0.0f)
+    [[
+        anno::display_name("Texture Translate"),
+        anno::description("Controls the position of the texture."),
+        anno::in_group("UV")
+    ]],
+    uniform float texture_rotate = 0.f
+    [[
+        anno::display_name("Texture Rotate"),
+        anno::description("Rotates angle of the texture in degrees."),
+        anno::in_group("UV")
+    ]],
+    uniform float2 texture_scale = float2(1.0f)
+    [[
+        anno::display_name("Texture Tiling"),
+        anno::description("Controls repetition of the texture."),
+        anno::in_group("UV")
+    ]]
+)
+[[
+    anno::author("NVIDIA CORPORATION"),
+    anno::display_name("Omni Glass"),
+    anno::version( 1, 0, 0),
+    anno::in_group("Base"),
+    anno::description("Omni Glass Material V2"),
+    anno::key_words(string[]("omni", "omniverse", "glass", "transparent", "window", "transparency", "workflow")),
+    distill_off()
+]]
+= OmniGlass_Opacity(
+    glass_color: glass_color,
+    glass_color_texture: glass_color_texture,
+    frosting_roughness: frosting_roughness,
+    glass_ior: glass_ior,
+    thin_walled: thin_walled,
+    depth: depth,
+    roughness_texture_influence: roughness_texture_influence,
+    roughness_texture: roughness_texture,
+    reflection_color_texture: reflection_color_texture,
+    reflection_color: reflection_color,
+    normal_map_texture: normal_map_texture,
+    normal_map_strength: normal_map_strength,
+    geometry_normal_roughness_strength: geometry_normal_roughness_strength,
+    flip_tangent_u: flip_tangent_u,
+    flip_tangent_v: flip_tangent_v,
+    enable_opacity: enable_opacity,
+    cutout_opacity: cutout_opacity,
+    cutout_opacity_texture: cutout_opacity_texture,
+    cutout_opacity_mono_source: cutout_opacity_mono_source,
+    opacity_threshold: opacity_threshold,
+    project_uvw: project_uvw,
+    world_or_object: world_or_object,
+    uv_space_index:  uv_space_index,
+    texture_translate:  texture_translate,
+    texture_rotate:  texture_rotate,
+    texture_scale:  texture_scale
+);

saved/assets/_dependencies/public_validation/8329bb517384e74a/color_204204204.hdr

@@ -0,0 +1,5 @@
+#?RADIANCE
+FORMAT=32-bit_rle_rgbe
+
+-Y 4 +X 4
+��̀��̀��̀��̀��̀��̀��̀��̀��̀��̀��̀��̀��̀��̀��̀��̀

saved/assets/_dependencies/public_validation/86946aaf125cd299/OmniPBR_Opacity.mdl

@@ -0,0 +1,426 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+mdl 1.4;
+
+import ::base::*;
+import ::anno::*;
+
+using OmniPBR_ClearCoat_Opacity import OmniPBR_ClearCoat_Opacity;
+
+
+
+export material OmniPBR_Opacity(
+
+	color diffuse_color_constant = color(0.2f)
+	[[
+		anno::display_name("Base Color"),
+		anno::description("This is the base color"),
+		anno::in_group("Albedo")
+	]],
+	uniform texture_2d diffuse_texture = texture_2d()
+	[[
+		anno::display_name("Albedo Map"),
+		anno::in_group("Albedo")
+	]],
+	float albedo_desaturation = float(0.0)
+	[[
+		anno::display_name("Albedo Desaturation"),
+		anno::soft_range(float(0.0f), float(1.0f)),
+		anno::description("Desaturates the diffuse color"),
+		anno::in_group("Albedo")
+	]],
+	float albedo_add = float(0.0)
+	[[
+		anno::display_name("Albedo Add"),
+		anno::soft_range(float(-1.0f), float(1.0f)),
+		anno::description("Adds a constant value to the diffuse color "),
+		anno::in_group("Albedo")
+	]],	
+	float albedo_brightness = float(1.0)
+	[[
+		anno::display_name("Albedo Brightness"),
+		anno::soft_range(float(0.0f), float(1.0f)),
+		anno::description("Multiplier for the diffuse color "),
+		anno::in_group("Albedo")
+	]],	
+	color diffuse_tint = color(1.0f)
+	[[
+		anno::display_name("Color Tint"),
+		anno::description("When enabled, this color value is multiplied over the final albedo color"),
+		anno::in_group("Albedo")
+	]],
+	
+
+	// -------------------- REFLECTIVITY ----------------------
+	
+	
+	
+	float reflection_roughness_constant = 0.5f
+	[[
+		anno::display_name("Roughness Amount"),
+		anno::hard_range(0.0,1.),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity")
+	]],
+	float reflection_roughness_texture_influence = 0.0f
+	[[
+		anno::display_name("Roughness Map Influence"),
+		anno::hard_range(0.0, 1.),
+		anno::description("Blends between the constant value and the lookup of the roughness texture"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d reflectionroughness_texture = texture_2d()
+	[[
+		anno::display_name("Roughness Map"),
+		anno::in_group("Reflectivity")
+	]],
+	
+	
+	float metallic_constant = 0.f
+	[[
+		anno::display_name("Metallic Amount"),
+		anno::hard_range(0.0,1.),
+		anno::description("Metallic Material"),
+		anno::in_group("Reflectivity")
+	]],	
+	float metallic_texture_influence = 0.0f
+	[[
+		anno::display_name("Metallic Map Influence"),
+		anno::hard_range(0.0, 1.),
+		anno::description("Blends between the constant value and the lookup of the metallic texture"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d metallic_texture = texture_2d()
+	[[
+		anno::display_name("Metallic Map"),
+		anno::in_group("Reflectivity")
+	]], 
+	float specular_level = float(0.5)
+	[[
+		anno::display_name("Specular"),
+		anno::soft_range(float(0.0f), float(1.0f)),
+		anno::description("The specular level (intensity) of the material"),
+		anno::in_group("Reflectivity")
+	]],
+	// -------------------- ORM ----------------------
+	uniform bool enable_ORM_texture = false
+	[[
+		anno::display_name("Enable ORM Texture"),
+		anno::description("When True the ORM texture will be used to extract the Occlusion, Roughness and Metallic Map"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d ORM_texture = texture_2d()
+	[[
+		anno::display_name("ORM Map"),
+		anno::description("Texture that hae Occlusion, Roughness and Metallic map stored in the respective r, g and b channels"),
+		anno::in_group("Reflectivity")
+	]],
+	
+	// -------------------- AO Group ----------------------
+
+	float ao_to_diffuse = 0.0
+	[[
+		anno::display_name("AO to Diffuse"),
+		anno::description("Controls the amount of ambient occlusion multiplied into the diffuse color channel"),
+		anno::in_group("AO"),
+		anno::hard_range(0.0f, 1.0f)
+	]],
+	uniform texture_2d ao_texture         = texture_2d()
+	[[
+		anno::display_name("Ambient Occlusion Map"),
+		anno::description("The Ambient Occlusion texture for the material"),
+		anno::in_group("AO")
+	]],
+	
+	
+	// -------------------- EMISSIVE ----------------------
+	
+	
+	uniform bool enable_emission = false
+	[[
+        anno::display_name("Enable Emission"),
+		anno::description("Enables the emission of light from the material"),
+		anno::in_group("Emissive")
+	]],
+	
+	color emissive_color    = color(1.0, 0.1, 0.1)
+	[[
+		anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Color"),
+		anno::description("The emission color"),
+		anno::in_group("Emissive")
+	
+	]],
+    uniform texture_2d emissive_color_texture = texture_2d() 
+	[[ 
+        anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Color map"),
+        anno::in_group("Emissive"),
+		anno::description("The emissive color texture")
+    ]],
+	uniform texture_2d emissive_mask_texture    = texture_2d()
+	[[
+		anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Mask map"),
+		anno::description("The texture masking the emissive color"),
+		anno::in_group("Emissive")
+	]],
+	uniform float emissive_intensity = 40.f
+	[[
+		anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Intensity"),    
+		anno::description("Intensity of the emission"),
+		anno::in_group("Emissive")
+	]],
+
+	// Cutout Opacity
+	uniform bool enable_opacity = true
+	[[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+	uniform bool enable_opacity_texture = false
+	[[
+		anno::display_name("Enable Opacity Texture"),
+		anno::description("Enables or disables the usage of the opacity texture map"),
+		anno::in_group("Opacity")
+	]],
+	uniform float opacity_constant = 1.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Amount"),    
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity")
+	]],
+	uniform texture_2d opacity_texture = texture_2d()
+	[[
+		anno::display_name("Opacity Map"),
+		anno::in_group("Opacity")
+	]],
+	uniform base::mono_mode opacity_mode = base::mono_average
+	[[
+		anno::display_name("Opacity Mono Source"),
+		anno::in_group("Opacity"),
+		anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum")
+	]],
+	uniform float opacity_threshold = 0.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Threshold"),
+		anno::description("If negative, disable cutout_opacity; if 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity")
+	]],	
+	
+	// -------------------- Normal ----------------------
+	
+	
+	
+	/*
+	uniform bool enable_normalmap_texture = false
+	[[
+		anno::display_name("Enable Normal Texture"),
+		anno::description("Enables the usage of the normalmap texture"),
+		anno::in_group("Features")
+	]],
+	*/
+		uniform float bump_factor = 1.f
+	[[
+		anno::display_name("Normal Map Strength"),
+		anno::description("Strength of normal map."),
+		anno::in_group("Normal"),
+		anno::soft_range(0.0f, 1.0f)
+	]],
+	
+	uniform texture_2d normalmap_texture = texture_2d()
+	[[
+		anno::display_name("Normal Map"),
+		anno::description("Enables the usage of the normalmap texture"),
+		anno::in_group("Normal")
+	]], 
+	
+
+	
+/*	uniform bool enable_detail_normalmap_texture = false
+	[[
+		anno::display_name("Enable Detail Normal Texture"),
+		anno::in_group("Features"),
+		anno::description("Enables the usage of the detail normalmap texture")
+	]],
+*/
+	uniform float detail_bump_factor = .3f
+	[[
+		anno::display_name("Detail Normal Strength"),
+		anno::in_group("Normal"),
+		anno::soft_range(0.0f, 1.0f),
+		anno::description("Strength of the detail normal")
+	]],
+	uniform texture_2d detail_normalmap_texture = texture_2d()
+	[[
+		anno::display_name("Detail Normal Map"),
+		anno::in_group("Normal")
+	]],
+	// UV Projection Group
+	uniform bool project_uvw = false
+	[[
+		anno::display_name("Enable Project UVW Coordinates"),
+		anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+		anno::in_group("UV")
+	]],
+	uniform bool world_or_object = false
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Enable World Space"),
+		anno::description("When set to 'true' uses world space for projection, when 'false' object space is used"),
+		anno::in_group("UV")
+	]],
+	
+	uniform int uv_space_index =  0
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("UV Space Index"),
+		anno::description("UV Space Index."),
+		anno::in_group("UV"),
+		anno::hard_range(0, 3)
+	]],
+	
+	// Adjustments Group
+	uniform float2 texture_translate =  float2(0.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Texture Translate"),
+		anno::description("Controls position of texture."),
+		anno::in_group("UV")
+	]],
+	uniform float texture_rotate =  0.f
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Texture Rotate"),
+		anno::description("Rotates angle of texture in degrees."),
+		anno::in_group("UV")
+	]],
+	uniform float2 texture_scale =  float2(1.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Texture Scale"),
+		anno::description("Larger number increases size of texture."),
+		anno::in_group("UV")
+	]],
+	
+	uniform float2 detail_texture_translate =  float2(0.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Detail Texture Translate"),
+		anno::description("Controls the position of the detail texture."),
+		anno::in_group("UV")
+	]],
+	uniform float detail_texture_rotate =  0.f
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Detail Texture Rotate"),
+		anno::description("Rotates angle of the detail texture in degrees."),
+		anno::in_group("UV")
+	]],
+	uniform float2 detail_texture_scale =  float2(1.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Detail Texture Scale"),
+		anno::description("Larger numbers increase the size of the detail texture"),
+		anno::in_group("UV")
+	]]	
+) 
+[[
+	anno::display_name("OmniPBR Opacity"),
+	anno::description("OmniPBR supports opacity and ORM textures"),
+ 	anno::in_group("Base"),
+	anno::version( 2, 1, 0),
+	anno::author("NVIDIA CORPORATION"), 
+	anno::key_words(string[]("omni", "PBR", "opacity", "omniverse", "generic"))
+]]
+ = OmniPBR_ClearCoat_Opacity(
+	diffuse_texture:			diffuse_texture,
+    albedo_desaturation:		albedo_desaturation,
+    albedo_add: 				albedo_add,
+    albedo_brightness: 			albedo_brightness,
+	diffuse_color_constant: 	diffuse_color_constant,
+    diffuse_tint: 				diffuse_tint,
+	//ao
+	ao_texture: 				ao_texture,
+    ao_to_diffuse: 				ao_to_diffuse,
+    //ORM
+	ORM_texture: 				ORM_texture,
+    enable_ORM_texture: 		enable_ORM_texture,
+	//reflectivity
+    reflection_roughness_constant:			reflection_roughness_constant,
+    reflectionroughness_texture:			reflectionroughness_texture,
+    reflection_roughness_texture_influence:	reflection_roughness_texture_influence,
+    metallic_constant:						metallic_constant,
+    metallic_texture: 						metallic_texture,
+    metallic_texture_influence: 			metallic_texture_influence,
+    specular_level: 						specular_level,
+	//opacity
+	enable_opacity: 						enable_opacity,
+    enable_opacity_texture: 				enable_opacity_texture,
+	opacity_texture: 						opacity_texture,
+    opacity_constant: 						opacity_constant,
+	opacity_mode:							opacity_mode,
+	opacity_threshold:						opacity_threshold,
+	//emissive
+    enable_emission: 						enable_emission,
+    emissive_color: 						emissive_color,
+	emissive_color_texture:					emissive_color_texture,
+    emissive_mask_texture: 					emissive_mask_texture,
+    emissive_intensity: 					emissive_intensity,
+	//clearcoat
+    enable_clearcoat: 						false,
+    clearcoat_tint: 						color(1.0f),
+    clearcoat_transparency: 				1.0f,
+    clearcoat_reflection_roughness: 		0.0f,
+    clearcoat_weight: 						1.0f,
+    clearcoat_flatten: 						1.0f,
+    clearcoat_ior: 							1.56f,
+    clearcoat_bump_factor: 					1.f,
+    clearcoat_normalmap_texture: 			texture_2d(),
+	//normal
+    normalmap_texture: 						normalmap_texture,
+    bump_factor:							bump_factor,
+    detail_normalmap_texture: 				detail_normalmap_texture,
+    detail_bump_factor: 					detail_bump_factor,
+    project_uvw: 							project_uvw,
+    world_or_object: 						world_or_object,
+    uv_space_index: 						uv_space_index,
+    texture_translate: 						texture_translate,
+    texture_rotate: 						texture_rotate,
+    texture_scale: 							texture_scale,
+    detail_texture_translate: 				detail_texture_translate,
+    detail_texture_rotate: 					detail_texture_rotate,
+    detail_texture_scale: 					detail_texture_scale,
+	clearcoat_texture_translate: 			float2(0.0f),
+	clearcoat_texture_rotate:				0.0f,
+	clearcoat_texture_scale:				float2(1.0f)
+	);

saved/assets/_dependencies/public_validation/d71555550deb30af/OmniGlass.mdl

@@ -0,0 +1,238 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+mdl 1.4;
+import ::anno::*;
+import ::base::*;
+
+using OmniGlass_Opacity import OmniGlass_Opacity;
+export annotation distill_off();
+
+export material OmniGlass(
+	color absorption_coeff = color(0.f, 0.f, 0.f)  // hiding this parameter as it does not exist in the new material
+	[[
+		anno::hidden(),
+		anno::unused()
+	]],
+	uniform bool use_glass_color_texture = false
+	[[
+		anno::hidden(),
+		anno::unused()
+	]],
+	uniform color glass_color = color(1.f, 1.f, 1.f) [[
+		anno::display_name("Glass Color"),
+		anno::description("Sets the color of the glass"),
+		anno::hard_range(color(0.0), color(1.0)),
+		anno::in_group("Color")
+	]],
+	uniform texture_2d glass_color_texture = texture_2d() [[
+		anno::display_name("Glass Color Texture"),
+		anno::description("Specifies the texture to be used for the glass color of the material"),
+		anno::in_group("Color")
+	]],
+	float frosting_roughness = 0.f [[
+		anno::display_name("Glass Roughness"),
+		anno::description("Sets the roughness of the glass material "),
+		anno::hard_range(0.0, 1.0),
+		anno::in_group("Roughness")
+	]],
+	uniform float glass_ior = 1.491f [[
+		anno::display_name("Glass IOR"),
+		anno::description("Sets IOR of the glass material "),
+		anno::soft_range(1.0f, 4.0f),
+		anno::in_group("Refraction")
+	]],
+	uniform bool thin_walled = false [[
+		anno::display_name("Thin Walled"),
+		anno::description("When enabled, the material is considered thin-walled. Use this, when you have glass surfaces that are modeled with a single plane"),
+		anno::in_group("Refraction")
+	]],
+	
+	// NEW PARAMETERS
+	uniform float depth = 0.001f [[	
+		anno::description("Controls how much light is absorbed through the surface"),
+		anno::display_name("Volume Absorption Scale"),
+		anno::in_group("Color"),
+		anno::soft_range(0.f, 1.f),
+		anno::hard_range(0.f, 1000.f)
+	]],
+	float roughness_texture_influence = 1.f [[
+		anno::display_name("Roughness Texture Influence"),
+		anno::in_group("Roughness"),
+		anno::hard_range(0.0f, 1.0f)
+	]],
+	uniform texture_2d roughness_texture = texture_2d() [[
+		anno::description("The roughness texture"),
+		anno::display_name("Roughness Texture"),
+		anno::in_group("Roughness"),
+		anno::usage("roughness")
+	]],
+	uniform texture_2d reflection_color_texture = texture_2d() [[
+		anno::description("The reflection color texture"),
+		anno::display_name("Reflection Color Texture"),
+		anno::in_group("Reflection")
+	]],
+	uniform color reflection_color = color(1.f, 1.f, 1.f) [[
+		anno::display_name("Reflection Color"),
+		anno::in_group("Reflection")
+	]],
+	uniform texture_2d normal_map_texture = texture_2d() [[
+		anno::description("The normal map texture"),
+		anno::display_name("Normal Map Texture"),
+		anno::in_group("Normal"),
+		anno::usage("normal")
+	]],
+	uniform float normal_map_strength = 1.0 [[
+		anno::description("Determines the degree of bumpiness"),
+		anno::display_name("Normal Map Strength"),
+		anno::in_group("Normal"),
+		anno::usage(""),
+		anno::soft_range(0.f, 1.f)
+	]],
+	uniform bool flip_tangent_u = false  [[
+        anno::display_name("Normal Map Flip U Tangent"),
+        anno::in_group("Normal")
+    ]],
+	uniform bool flip_tangent_v = true [[
+        anno::display_name("Normal Map Flip V Tangent"),
+        anno::in_group("Normal")
+    ]],
+
+	// Cutout Opacity
+	uniform bool enable_opacity = false
+	[[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+	uniform float cutout_opacity = 1.0f [[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Amount"),
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity")
+	]],	
+	uniform texture_2d cutout_opacity_texture = texture_2d() [[
+		anno::description("The opacity map"),
+		anno::display_name("Opacity Map"),
+		anno::in_group("Opacity"),
+		anno::usage("opacity")
+	]],
+	uniform base::mono_mode cutout_opacity_mono_source = base::mono_alpha [[
+		anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum"),
+		anno::display_name("Opacity Mono Source"),
+		anno::in_group("Opacity"),
+		anno::usage("")
+	]],
+	uniform float opacity_threshold = 0.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Threshold"),
+		anno::description("If negative, disable cutout_opacity; if 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity")
+	]],
+
+	//
+	// End of new
+	//
+	// UV Projection Group
+	//
+	uniform bool project_uvw = false
+	[[
+		anno::display_name("Enable Project UVW Coordinates"),
+		anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+		anno::in_group("UV")
+	]],
+	uniform bool world_or_object = false
+	[[
+		anno::display_name("Enable World Space"),
+		anno::description("When set to 'true' uses world space for projection, when 'false' object space is used"),
+		anno::in_group("UV")
+	]],
+	
+	// UV Space selector
+	uniform int uv_space_index =  0
+	[[
+		anno::display_name("UV Space Index"),
+		anno::description("Choose the UV Space Index to be used"),
+		anno::in_group("UV"),
+		anno::hard_range(0, 3)
+	]],
+	uniform float2 texture_translate =  float2(0.0f)
+	[[
+		anno::display_name("Texture Translate"),
+		anno::description("Controls the position of the texture."),
+		anno::in_group("UV")
+	]],
+	uniform float texture_rotate =  0.f
+	[[
+		anno::display_name("Texture Rotate"),
+		anno::description("Rotates angle of the texture in degrees."),
+		anno::in_group("UV")
+	]],
+	uniform float2 texture_scale =  float2(1.0f)
+	[[
+		anno::display_name("Texture Tiling"),
+		anno::description("Controls repetition of the texture."),
+		anno::in_group("UV")
+	]])
+[[ 
+	anno::author("NVIDIA CORPORATION"),
+	anno::display_name("Omni Glass"),
+	anno::version( 1, 0, 0),
+ 	anno::in_group("Base"),
+	anno::description("Omni Glass Material V2"),
+	anno::key_words(string[]("omni", "omniverse", "glass", "transparent", "window", "transparency", "workflow")),
+	distill_off()
+]]
+ = OmniGlass_Opacity(
+	glass_color: glass_color,
+	glass_color_texture: glass_color_texture,
+	frosting_roughness: frosting_roughness,
+	glass_ior: glass_ior,
+	thin_walled: thin_walled,
+	depth: depth,
+	roughness_texture_influence: roughness_texture_influence,
+	roughness_texture: roughness_texture,
+	reflection_color_texture: reflection_color_texture,
+	reflection_color: reflection_color,
+	normal_map_texture: normal_map_texture,
+	normal_map_strength: normal_map_strength,
+	flip_tangent_u: flip_tangent_u,
+	flip_tangent_v: flip_tangent_v,
+	enable_opacity: enable_opacity,
+	cutout_opacity: cutout_opacity,
+	cutout_opacity_texture: cutout_opacity_texture,
+	cutout_opacity_mono_source: cutout_opacity_mono_source,
+	opacity_threshold: opacity_threshold,
+	project_uvw: project_uvw,
+	world_or_object: world_or_object,
+	uv_space_index:  uv_space_index,
+	texture_translate:  texture_translate,
+	texture_rotate:  texture_rotate,
+	texture_scale:  texture_scale
+	);

saved/assets/_dependencies/public_validation/e0591cdda9f21eb6/OmniPBR.mdl

@@ -0,0 +1,392 @@
+/***************************************************************************************************
+ * Copyright 2022 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+mdl 1.7;
+
+import ::df::*;
+import ::state::*;
+import ::math::*;
+import ::base::*;
+import ::state::*;
+import ::tex::*;
+import ::anno::*;
+
+import ::debug::*;
+
+import ::nvidia::core_definitions::file_texture;
+import ::nvidia::core_definitions::normalmap_texture;
+
+import OmniPBR_ClearCoat::*;
+
+
+//  OmniPBR  //
+
+export material OmniPBR(
+
+    //  Albdeo  //
+
+	color diffuse_color_constant = color(0.2) [[
+		anno::display_name("Albedo Color"),
+		anno::description("This is the albedo base color"),
+		anno::in_group("Albedo")
+	]],
+	uniform texture_2d diffuse_texture = texture_2d() [[
+		anno::display_name("Albedo Map"),
+		anno::in_group("Albedo")
+	]],
+	float albedo_desaturation = float(0.0) [[
+		anno::display_name("Albedo Desaturation"),
+		anno::description("Desaturates the diffuse color"),
+		anno::in_group("Albedo"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	float albedo_add = float(0.0) [[
+		anno::display_name("Albedo Add"),
+		anno::description("Adds a constant value to the diffuse color "),
+		anno::in_group("Albedo"),
+		anno::soft_range(float(-1.0), float(1.0))
+	]],	
+	float albedo_brightness = float(1.0) [[
+		anno::display_name("Albedo Brightness"),
+		anno::description("Multiplier for the diffuse color "),
+		anno::in_group("Albedo"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],	
+	color diffuse_tint = color(1.0) [[
+		anno::display_name("Color Tint"),
+		anno::description("When enabled, this color value is multiplied over the final albedo color"),
+		anno::in_group("Albedo")
+	]],
+	
+
+	//  Reflectivity //
+	
+	float reflection_roughness_constant = float(0.5) [[
+		anno::display_name("Roughness Amount"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	float reflection_roughness_texture_influence = float(0.0) [[
+		anno::display_name("Roughness Map Influence"),
+		anno::description("Blends between the constant value and the lookup of the roughness texture"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d reflectionroughness_texture = texture_2d() [[
+		anno::display_name("Roughness Map"),
+		anno::in_group("Reflectivity"),
+		anno::usage("roughness")
+	]],
+	float metallic_constant = float(0.0) [[
+		anno::display_name("Metallic Amount"),
+		anno::description("Metallic Material"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],	
+	float metallic_texture_influence = float(0.0) [[
+		anno::display_name("Metallic Map Influence"),
+		anno::description("Blends between the constant value and the lookup of the metallic texture"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d metallic_texture = texture_2d() [[
+		anno::display_name("Metallic Map"),
+		anno::in_group("Reflectivity"),
+		anno::usage("metalness")
+	]], 
+	float specular_level = float(0.5) [[
+		anno::display_name("Specular"),
+		anno::description("The specular level (intensity) of the material"),
+		anno::in_group("Reflectivity"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	
+
+	//  ORM  //
+ 
+	uniform bool enable_ORM_texture = false [[
+		anno::display_name("Enable ORM Texture"),
+		anno::description("The ORM texture will be used to extract the Occlusion, Roughness and Metallic textures from R,G,B channels"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d ORM_texture = texture_2d() [[
+		anno::display_name("ORM Map"),
+		anno::description("Texture that has Occlusion, Roughness and Metallic maps stored in their respective R, G and B channels"),
+		anno::in_group("Reflectivity"),
+		anno::usage("roughness")
+	]],
+
+
+	//  AO Group  // 
+
+	float ao_to_diffuse = 0.0 [[
+		anno::display_name("AO to diffuse"),
+		anno::description("Controls the amount of ambient occlusion multiplied against the diffuse color channel"),
+		anno::in_group("AO"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d ao_texture = texture_2d() [[
+		anno::display_name("Ambient Occlusion Map"),
+		anno::description("The ambient occlusion texture for the material"),
+		anno::in_group("AO"),
+		anno::usage("occlusion")
+	]],
+	
+	
+	//  Emission //  
+
+	uniform bool enable_emission = false [[
+        anno::display_name("Enable Emission"),
+		anno::description("Enables the emission of light from the material"),
+		anno::in_group("Emissive")
+	]],
+	color emissive_color = color(1.0,0.1,0.1) [[
+		anno::display_name("Emissive Color"),
+		anno::description("The emission color"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true")
+	]],
+    	uniform texture_2d emissive_color_texture = texture_2d() [[ 
+		anno::display_name("Emissive Color map"),
+        anno::in_group("Emissive"),
+		anno::description("The emissive color texture"),
+        anno::enable_if("enable_emission == true")
+    ]],	
+	uniform texture_2d emissive_mask_texture = texture_2d() [[
+		anno::display_name("Emissive Mask map"),
+		anno::description("The texture masking the emissive color"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true"),
+	 	anno::usage("occlusion")
+	]],
+	float emissive_intensity = float(40.0) [[
+		anno::display_name("Emissive Intensity"),    
+		anno::description("Intensity of the emission"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true")
+	]],	
+
+
+    //  Cutout Opacity  //
+	
+    uniform bool enable_opacity = false [[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+ 	uniform texture_2d opacity_texture = texture_2d() [[
+		anno::display_name("Opacity Map"),
+		anno::in_group("Opacity"),
+		anno::usage("opacity")
+	]],
+	float opacity_constant = float(1.0) [[
+		anno::display_name("Opacity Amount"),    
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform bool enable_opacity_texture = false [[
+		anno::display_name("Enable Opacity Texture"),
+		anno::description("Enables or disables the usage of the opacity texture map"),
+		anno::in_group("Opacity")
+	]],
+	uniform base::mono_mode opacity_mode = base::mono_average [[
+		anno::display_name("Opacity Mono Source"),
+		anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum"),
+		anno::in_group("Opacity")
+	]],
+	uniform float opacity_threshold = float(0.0) [[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Threshold"),
+		anno::description("If 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity")
+	]],
+
+
+
+	//  Normal  // 
+	
+	uniform float geometry_normal_roughness_strength = 1.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Normal map to roughness weight"),
+		anno::description("Enables and weights roughness induced by normal maps"),
+		anno::in_group("Normal")
+	]],
+	uniform float bump_factor = float(1.0) [[
+		anno::display_name("Normal Strength"),
+		anno::description("Strength of normal map"),
+		anno::in_group("Normal"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d normalmap_texture = texture_2d() [[
+		anno::display_name("Normal Map"),
+		anno::in_group("Normal"),
+		anno::usage("normal")
+	]], 
+	uniform float detail_bump_factor = float(0.3) [[
+		anno::display_name("Detail Normal Strength"),
+		anno::in_group("Normal"),
+		anno::description("Strength of the detail normal"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d detail_normalmap_texture = texture_2d() [[
+		anno::display_name("Detail Normal Map"),
+		anno::in_group("Normal"),
+		anno::usage("normal")
+	]],
+	uniform bool flip_tangent_u = false  [[
+        anno::display_name("Normal Map Flip U Tangent"),
+        anno::in_group("Normal")
+    	]],
+	uniform bool flip_tangent_v = true [[
+        anno::display_name("Normal Map Flip V Tangent"),
+        anno::in_group("Normal")
+    	]],
+
+	//  UVW Projection Group  //
+
+	uniform bool project_uvw = false [[
+		anno::display_name("Enable Project UVW Coordinates"),
+		anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+		anno::in_group("UV")
+	]],
+	uniform bool world_or_object = false [[
+		anno::display_name("Enable World Space"),
+		anno::description("When enabled, uses world space for projection, otherwise object space is used"),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform int uv_space_index =  0 [[
+		anno::display_name("UV Space Index"),
+		anno::description("UV Space Index."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true"),
+		anno::hard_range(int(0), int(3))
+	]],
+	
+	//  UVW Adjustments Group  //
+
+	uniform float2 texture_translate =  float2(0.0) [[
+		anno::display_name("Texture Translate"),
+		anno::description("Controls position of texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float texture_rotate = float(0.0) [[
+		anno::display_name("Texture Rotate"),
+		anno::description("Rotates angle of texture in degrees."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float2 texture_scale =  float2(1.0) [[
+		anno::display_name("Texture Tiling"),
+		anno::description("Controls the repetition of the texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float2 detail_texture_translate =  float2(0.0) [[
+		anno::display_name("Detail Texture Translate"),
+		anno::description("Controls the position of the detail texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float detail_texture_rotate =  float(0.0) [[
+		anno::display_name("Detail Texture Rotate"),
+		anno::description("Rotates angle of the detail texture in degrees."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float2 detail_texture_scale =  float2(1.0) [[
+		anno::display_name("Detail Texture Tiling"),
+		anno::description("Controls the repetition of the detail texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]]
+) 
+[[
+	anno::display_name("OmniPBR"),
+	anno::description("OmniPBR Base with support for clear coat, opacity and ORM textures."),
+    anno::in_group("Base"),
+	anno::version( 2, 1, 2),
+	anno::author("NVIDIA CORPORATION"), 
+	anno::key_words(string[]("omni", "PBR", "opacity", "omniverse", "generic"))
+]] = let {
+
+material base = OmniPBR_ClearCoat::OmniPBR_ClearCoat(
+    diffuse_color_constant: diffuse_color_constant,
+    diffuse_texture: diffuse_texture,
+    albedo_desaturation: albedo_desaturation,
+    albedo_add: albedo_add,
+    albedo_brightness: albedo_brightness,
+    diffuse_tint: diffuse_tint,
+    reflection_roughness_constant: reflection_roughness_constant,
+    reflection_roughness_texture_influence: reflection_roughness_texture_influence,
+    reflectionroughness_texture: reflectionroughness_texture,
+    metallic_constant: metallic_constant,
+    metallic_texture_influence: metallic_texture_influence,
+    metallic_texture: metallic_texture,
+    specular_level: specular_level,
+    enable_ORM_texture: enable_ORM_texture,
+    ORM_texture: ORM_texture,
+    ao_to_diffuse: ao_to_diffuse,
+    ao_texture: ao_texture,
+	enable_emission: enable_emission,
+    emissive_color: emissive_color,
+    emissive_color_texture: emissive_color_texture, 
+    emissive_mask_texture: emissive_mask_texture,
+    emissive_intensity: emissive_intensity,      
+    enable_opacity: enable_opacity,          
+    opacity_texture: opacity_texture,         
+    opacity_constant: opacity_constant,        
+    enable_opacity_texture: enable_opacity_texture,  
+    opacity_mode: opacity_mode,            
+    opacity_threshold: opacity_threshold,
+    geometry_normal_roughness_strength:     geometry_normal_roughness_strength,
+    bump_factor: bump_factor,             
+    normalmap_texture: normalmap_texture,
+    detail_bump_factor: detail_bump_factor,      
+    detail_normalmap_texture: detail_normalmap_texture,
+    flip_tangent_u: flip_tangent_u,          
+    flip_tangent_v: flip_tangent_v,                  
+	project_uvw: project_uvw,
+    world_or_object: world_or_object,         
+    uv_space_index: uv_space_index,          
+    texture_translate: texture_translate,       
+    texture_rotate: texture_rotate,          
+    texture_scale: texture_scale,           
+    detail_texture_translate: detail_texture_translate,
+    detail_texture_rotate: detail_texture_rotate, 
+    detail_texture_scale: detail_texture_scale
+);
+
+} in material(
+surface:  base.surface,
+geometry: base.geometry
+);

saved/assets/_dependencies/public_validation/materials/OmniGlass.mdl

@@ -0,0 +1,238 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+mdl 1.4;
+import ::anno::*;
+import ::base::*;
+
+using OmniGlass_Opacity import OmniGlass_Opacity;
+export annotation distill_off();
+
+export material OmniGlass(
+	color absorption_coeff = color(0.f, 0.f, 0.f)  // hiding this parameter as it does not exist in the new material
+	[[
+		anno::hidden(),
+		anno::unused()
+	]],
+	uniform bool use_glass_color_texture = false
+	[[
+		anno::hidden(),
+		anno::unused()
+	]],
+	uniform color glass_color = color(1.f, 1.f, 1.f) [[
+		anno::display_name("Glass Color"),
+		anno::description("Sets the color of the glass"),
+		anno::hard_range(color(0.0), color(1.0)),
+		anno::in_group("Color")
+	]],
+	uniform texture_2d glass_color_texture = texture_2d() [[
+		anno::display_name("Glass Color Texture"),
+		anno::description("Specifies the texture to be used for the glass color of the material"),
+		anno::in_group("Color")
+	]],
+	float frosting_roughness = 0.f [[
+		anno::display_name("Glass Roughness"),
+		anno::description("Sets the roughness of the glass material "),
+		anno::hard_range(0.0, 1.0),
+		anno::in_group("Roughness")
+	]],
+	uniform float glass_ior = 1.491f [[
+		anno::display_name("Glass IOR"),
+		anno::description("Sets IOR of the glass material "),
+		anno::soft_range(1.0f, 4.0f),
+		anno::in_group("Refraction")
+	]],
+	uniform bool thin_walled = false [[
+		anno::display_name("Thin Walled"),
+		anno::description("When enabled, the material is considered thin-walled. Use this, when you have glass surfaces that are modeled with a single plane"),
+		anno::in_group("Refraction")
+	]],
+	
+	// NEW PARAMETERS
+	uniform float depth = 0.001f [[	
+		anno::description("Controls how much light is absorbed through the surface"),
+		anno::display_name("Volume Absorption Scale"),
+		anno::in_group("Color"),
+		anno::soft_range(0.f, 1.f),
+		anno::hard_range(0.f, 1000.f)
+	]],
+	float roughness_texture_influence = 1.f [[
+		anno::display_name("Roughness Texture Influence"),
+		anno::in_group("Roughness"),
+		anno::hard_range(0.0f, 1.0f)
+	]],
+	uniform texture_2d roughness_texture = texture_2d() [[
+		anno::description("The roughness texture"),
+		anno::display_name("Roughness Texture"),
+		anno::in_group("Roughness"),
+		anno::usage("roughness")
+	]],
+	uniform texture_2d reflection_color_texture = texture_2d() [[
+		anno::description("The reflection color texture"),
+		anno::display_name("Reflection Color Texture"),
+		anno::in_group("Reflection")
+	]],
+	uniform color reflection_color = color(1.f, 1.f, 1.f) [[
+		anno::display_name("Reflection Color"),
+		anno::in_group("Reflection")
+	]],
+	uniform texture_2d normal_map_texture = texture_2d() [[
+		anno::description("The normal map texture"),
+		anno::display_name("Normal Map Texture"),
+		anno::in_group("Normal"),
+		anno::usage("normal")
+	]],
+	uniform float normal_map_strength = 1.0 [[
+		anno::description("Determines the degree of bumpiness"),
+		anno::display_name("Normal Map Strength"),
+		anno::in_group("Normal"),
+		anno::usage(""),
+		anno::soft_range(0.f, 1.f)
+	]],
+	uniform bool flip_tangent_u = false  [[
+        anno::display_name("Normal Map Flip U Tangent"),
+        anno::in_group("Normal")
+    ]],
+	uniform bool flip_tangent_v = true [[
+        anno::display_name("Normal Map Flip V Tangent"),
+        anno::in_group("Normal")
+    ]],
+
+	// Cutout Opacity
+	uniform bool enable_opacity = false
+	[[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+	uniform float cutout_opacity = 1.0f [[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Amount"),
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity")
+	]],	
+	uniform texture_2d cutout_opacity_texture = texture_2d() [[
+		anno::description("The opacity map"),
+		anno::display_name("Opacity Map"),
+		anno::in_group("Opacity"),
+		anno::usage("opacity")
+	]],
+	uniform base::mono_mode cutout_opacity_mono_source = base::mono_alpha [[
+		anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum"),
+		anno::display_name("Opacity Mono Source"),
+		anno::in_group("Opacity"),
+		anno::usage("")
+	]],
+	uniform float opacity_threshold = 0.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Threshold"),
+		anno::description("If negative, disable cutout_opacity; if 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity")
+	]],
+
+	//
+	// End of new
+	//
+	// UV Projection Group
+	//
+	uniform bool project_uvw = false
+	[[
+		anno::display_name("Enable Project UVW Coordinates"),
+		anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+		anno::in_group("UV")
+	]],
+	uniform bool world_or_object = false
+	[[
+		anno::display_name("Enable World Space"),
+		anno::description("When set to 'true' uses world space for projection, when 'false' object space is used"),
+		anno::in_group("UV")
+	]],
+	
+	// UV Space selector
+	uniform int uv_space_index =  0
+	[[
+		anno::display_name("UV Space Index"),
+		anno::description("Choose the UV Space Index to be used"),
+		anno::in_group("UV"),
+		anno::hard_range(0, 3)
+	]],
+	uniform float2 texture_translate =  float2(0.0f)
+	[[
+		anno::display_name("Texture Translate"),
+		anno::description("Controls the position of the texture."),
+		anno::in_group("UV")
+	]],
+	uniform float texture_rotate =  0.f
+	[[
+		anno::display_name("Texture Rotate"),
+		anno::description("Rotates angle of the texture in degrees."),
+		anno::in_group("UV")
+	]],
+	uniform float2 texture_scale =  float2(1.0f)
+	[[
+		anno::display_name("Texture Tiling"),
+		anno::description("Controls repetition of the texture."),
+		anno::in_group("UV")
+	]])
+[[ 
+	anno::author("NVIDIA CORPORATION"),
+	anno::display_name("Omni Glass"),
+	anno::version( 1, 0, 0),
+ 	anno::in_group("Base"),
+	anno::description("Omni Glass Material V2"),
+	anno::key_words(string[]("omni", "omniverse", "glass", "transparent", "window", "transparency", "workflow")),
+	distill_off()
+]]
+ = OmniGlass_Opacity(
+	glass_color: glass_color,
+	glass_color_texture: glass_color_texture,
+	frosting_roughness: frosting_roughness,
+	glass_ior: glass_ior,
+	thin_walled: thin_walled,
+	depth: depth,
+	roughness_texture_influence: roughness_texture_influence,
+	roughness_texture: roughness_texture,
+	reflection_color_texture: reflection_color_texture,
+	reflection_color: reflection_color,
+	normal_map_texture: normal_map_texture,
+	normal_map_strength: normal_map_strength,
+	flip_tangent_u: flip_tangent_u,
+	flip_tangent_v: flip_tangent_v,
+	enable_opacity: enable_opacity,
+	cutout_opacity: cutout_opacity,
+	cutout_opacity_texture: cutout_opacity_texture,
+	cutout_opacity_mono_source: cutout_opacity_mono_source,
+	opacity_threshold: opacity_threshold,
+	project_uvw: project_uvw,
+	world_or_object: world_or_object,
+	uv_space_index:  uv_space_index,
+	texture_translate:  texture_translate,
+	texture_rotate:  texture_rotate,
+	texture_scale:  texture_scale
+	);

saved/assets/_dependencies/public_validation/materials/OmniGlass_1.mdl

@@ -0,0 +1,260 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+mdl 1.4;
+import ::anno::*;
+import ::base::*;
+
+using OmniGlass_Opacity_1 import OmniGlass_Opacity;
+export annotation distill_off();
+
+
+export material OmniGlass
+(
+    color absorption_coeff = color(0.f, 0.f, 0.f)  // hiding this parameter as it does not exist in the new material
+    [[
+        anno::hidden(),
+        anno::unused()
+    ]],
+    uniform bool use_glass_color_texture = false
+    [[
+        anno::hidden(),
+        anno::unused()
+    ]],
+    uniform color glass_color = color(1.f, 1.f, 1.f)
+    [[
+        anno::display_name("Glass Color"),
+        anno::description("Sets the color of the glass"),
+        anno::hard_range(color(0.0), color(1.0)),
+        anno::in_group("Color")
+    ]],
+    uniform texture_2d glass_color_texture = texture_2d()
+    [[
+        anno::display_name("Glass Color Texture"),
+        anno::description("Specifies the texture to be used for the glass color of the material"),
+        anno::in_group("Color")
+    ]],
+    float frosting_roughness = 0.f
+    [[
+        anno::display_name("Glass Roughness"),
+        anno::description("Sets the roughness of the glass material "),
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Roughness")
+    ]],
+    uniform float glass_ior = 1.491f
+    [[
+        anno::display_name("Glass IOR"),
+        anno::description("Sets IOR of the glass material "),
+        anno::soft_range(1.0f, 4.0f),
+        anno::in_group("Refraction")
+    ]],
+    uniform bool thin_walled = false
+    [[
+        anno::display_name("Thin Walled"),
+        anno::description("When enabled, the material is considered thin-walled. Use this, when you have glass surfaces that are modeled with a single plane"),
+        anno::in_group("Refraction")
+    ]],
+    uniform float depth = 0.001f
+    [[
+        anno::description("Controls how much light is absorbed through the surface"),
+        anno::display_name("Volume Absorption Scale"),
+        anno::in_group("Color"),
+        anno::soft_range(0.f, 1.f),
+        anno::hard_range(0.f, 1000.f)
+    ]],
+    float roughness_texture_influence = 1.f
+    [[
+        anno::display_name("Roughness Texture Influence"),
+        anno::in_group("Roughness"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+    uniform texture_2d roughness_texture = texture_2d()
+    [[
+        anno::description("The roughness texture"),
+        anno::display_name("Roughness Texture"),
+        anno::in_group("Roughness"),
+        anno::usage("roughness")
+    ]],
+    uniform texture_2d reflection_color_texture = texture_2d()
+    [[
+        anno::description("The reflection color texture"),
+        anno::display_name("Reflection Color Texture"),
+        anno::in_group("Reflection")
+    ]],
+    uniform color reflection_color = color(1.f, 1.f, 1.f)
+    [[
+        anno::display_name("Reflection Color"),
+        anno::in_group("Reflection")
+    ]],
+    uniform texture_2d normal_map_texture = texture_2d()
+    [[
+        anno::description("The normal map texture"),
+        anno::display_name("Normal Map Texture"),
+        anno::in_group("Normal"),
+        anno::usage("normal")
+    ]],
+    uniform float normal_map_strength = 1.0
+    [[
+        anno::description("Determines the degree of bumpiness"),
+        anno::display_name("Normal Map Strength"),
+        anno::in_group("Normal"),
+        anno::usage(""),
+        anno::soft_range(0.f, 1.f)
+    ]],
+    uniform float geometry_normal_roughness_strength = 1.f
+    [[
+        anno::hard_range(0.f, 1.f),
+        anno::display_name("Normal map to roughness weight"),
+        anno::description("Enables and weights roughness induced by normal maps"),
+        anno::in_group("Normal")
+    ]],
+    uniform bool flip_tangent_u = false
+    [[
+        anno::display_name("Normal Map Flip U Tangent"),
+        anno::in_group("Normal")
+    ]],
+    uniform bool flip_tangent_v = true
+    [[
+        anno::display_name("Normal Map Flip V Tangent"),
+        anno::in_group("Normal")
+    ]],
+
+    // Cutout Opacity
+    uniform bool enable_opacity = false
+    [[
+        anno::display_name("Enable Opacity"),
+        anno::description("Enables the use of cutout opacity"),
+        anno::in_group("Opacity")
+    ]],
+    uniform float cutout_opacity = 1.0f
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::display_name("Opacity Amount"),
+        anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+        anno::in_group("Opacity")
+    ]],
+    uniform texture_2d cutout_opacity_texture = texture_2d()
+    [[
+        anno::description("The opacity map"),
+        anno::display_name("Opacity Map"),
+        anno::in_group("Opacity"),
+        anno::usage("opacity")
+    ]],
+    uniform base::mono_mode cutout_opacity_mono_source = base::mono_alpha
+    [[
+        anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum"),
+        anno::display_name("Opacity Mono Source"),
+        anno::in_group("Opacity"),
+        anno::usage("")
+    ]],
+    uniform float opacity_threshold = 0.f
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::display_name("Opacity Threshold"),
+        anno::description("If negative, disable cutout_opacity; if 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+        anno::in_group("Opacity")
+    ]],
+
+    // UV Projection Group
+    uniform bool project_uvw = false
+    [[
+        anno::display_name("Enable Project UVW Coordinates"),
+        anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+        anno::in_group("UV")
+    ]],
+    uniform bool world_or_object = false
+    [[
+        anno::display_name("Enable World Space"),
+        anno::description("When set to 'true' uses world space for projection, when 'false' object space is used"),
+        anno::in_group("UV")
+    ]],
+
+    // UV Space Selector
+    uniform int uv_space_index = 0
+    [[
+        anno::display_name("UV Space Index"),
+        anno::description("Choose the UV Space Index to be used"),
+        anno::in_group("UV"),
+        anno::hard_range(0, 3)
+    ]],
+    uniform float2 texture_translate = float2(0.0f)
+    [[
+        anno::display_name("Texture Translate"),
+        anno::description("Controls the position of the texture."),
+        anno::in_group("UV")
+    ]],
+    uniform float texture_rotate = 0.f
+    [[
+        anno::display_name("Texture Rotate"),
+        anno::description("Rotates angle of the texture in degrees."),
+        anno::in_group("UV")
+    ]],
+    uniform float2 texture_scale = float2(1.0f)
+    [[
+        anno::display_name("Texture Tiling"),
+        anno::description("Controls repetition of the texture."),
+        anno::in_group("UV")
+    ]]
+)
+[[
+    anno::author("NVIDIA CORPORATION"),
+    anno::display_name("Omni Glass"),
+    anno::version( 1, 0, 0),
+    anno::in_group("Base"),
+    anno::description("Omni Glass Material V2"),
+    anno::key_words(string[]("omni", "omniverse", "glass", "transparent", "window", "transparency", "workflow")),
+    distill_off()
+]]
+= OmniGlass_Opacity(
+    glass_color: glass_color,
+    glass_color_texture: glass_color_texture,
+    frosting_roughness: frosting_roughness,
+    glass_ior: glass_ior,
+    thin_walled: thin_walled,
+    depth: depth,
+    roughness_texture_influence: roughness_texture_influence,
+    roughness_texture: roughness_texture,
+    reflection_color_texture: reflection_color_texture,
+    reflection_color: reflection_color,
+    normal_map_texture: normal_map_texture,
+    normal_map_strength: normal_map_strength,
+    geometry_normal_roughness_strength: geometry_normal_roughness_strength,
+    flip_tangent_u: flip_tangent_u,
+    flip_tangent_v: flip_tangent_v,
+    enable_opacity: enable_opacity,
+    cutout_opacity: cutout_opacity,
+    cutout_opacity_texture: cutout_opacity_texture,
+    cutout_opacity_mono_source: cutout_opacity_mono_source,
+    opacity_threshold: opacity_threshold,
+    project_uvw: project_uvw,
+    world_or_object: world_or_object,
+    uv_space_index:  uv_space_index,
+    texture_translate:  texture_translate,
+    texture_rotate:  texture_rotate,
+    texture_scale:  texture_scale
+);

saved/assets/_dependencies/public_validation/materials/OmniGlass_Opacity.mdl

@@ -0,0 +1,488 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+
+mdl 1.4;
+
+import ::tex::*;
+import ::base::*;
+import ::math::*;
+import ::anno::*;
+import ::df::*;
+import ::state::*;
+
+const string COPYRIGHT = 
+" Copyright 1986, 2020 NVIDIA Corporation. All rights reserved.\n"
+" MDL MATERIALS ARE PROVIDED PURSUANT TO AN END USER LICENSE  AGREEMENT,\n"
+" WHICH WAS ACCEPTED IN ORDER TO GAIN ACCESS TO THIS FILE.  IN PARTICULAR,\n" 
+" THE MDL MATERIALS ARE PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND,\n"
+" EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF\n"
+" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF\n" 
+" COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA\n"
+" CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY\n"
+" GENERAL, SPECIAL,  INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN\n"
+" AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR\n"
+" INABILITY TO USE THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.\n";
+
+float get_float( uniform texture_2d t,
+				float f,
+				base::texture_coordinate_info uvw,
+				uniform base::mono_mode mono_source = base::mono_maximum)
+{
+	return tex::texture_isvalid(t) 
+	? 
+	base::file_texture(t, 
+		color(0.f, 0.f, 0.f), 
+		color(1.f, 1.f, 1.f), 
+		mono_source, 
+		uvw,
+		float2(0.f, 1.f), 
+		float2(0.f, 1.f), 
+		tex::wrap_repeat, 
+		tex::wrap_repeat, 
+		false).mono 
+	: 
+	f;
+}
+
+color get_color( uniform texture_2d t,
+				color c,
+				base::texture_coordinate_info uvw)
+{
+	return tex::texture_isvalid(t) 
+	? 
+	base::file_texture(t, 
+		color(0.f, 0.f, 0.f), 
+		color(1.f, 1.f, 1.f), 
+		base::mono_alpha, 
+		uvw,
+		float2(0.f, 1.f), 
+		float2(0.f, 1.f), 
+		tex::wrap_repeat, 
+		tex::wrap_repeat, 
+		false).tint 
+	: 
+	c;
+}
+
+float apply_roughness_influence( 
+		uniform texture_2d roughness_texture, 
+		float constant_roughness, 
+		float roughness_influence,  
+		base::texture_coordinate_info uvw){
+	return math::lerp(constant_roughness, get_float(roughness_texture, constant_roughness, uvw), roughness_influence);
+}
+
+color get_volume_absorption(
+	 float absorption = float(0.001f) [[
+		anno::display_name("Volume Absorption"),
+		anno::description("Controls how much light is absorbed through the surface"),
+		anno::hard_range(0.0,1000.0),
+		anno::soft_range(0.0,1.0)
+	]],
+
+	 color absorptionColor = color(1) [[
+		anno::display_name("Absorption Color"),
+		anno::description("Simulates shifts in color when light passes through the surface")
+	]]
+) [[
+	anno::display_name("Absorption"),
+	anno::description("Provides an absorption coefficient for the volume"),
+	anno::unused()
+]] {
+	return (absorption > 0) ? 
+		-math::log(math::clamp(absorptionColor, color(0), color(1))) * absorption * 100.0 : 
+		color(0);
+}
+
+uniform float4x4 rotation_translation_scale(
+	uniform float3 rotation = float3(0.)
+		[[ anno::description("Rotation applied to every UVW coordinate") ]],
+	uniform float3 translation = float3(0.)
+		[[ anno::description("Offset applied to every UVW coordinate") ]],
+	uniform float3 scaling = float3(1.)
+		[[ anno::description("Scale applied to every UVW coordinate") ]]
+)
+[[
+	anno::description("Construct transformation matrix from Euler rotation, translation and scale"),
+	anno::hidden()
+]]
+{
+	float4x4 scale =
+		float4x4(scaling.x        , 0.               , 0.               , 0.,
+				 0.               , scaling.y        , 0.               , 0.,
+				 0.               , 0.               , scaling.z        , 0.,
+				 translation.x, translation.y, translation.z, 1.);
+
+	float3 s = math::sin(rotation);
+	float3 c = math::cos(rotation);
+	float4x4 rotate =
+		float4x4(  c.y*c.z ,  -c.x*s.z + s.x*s.y*c.z ,  s.x*s.z + c.x*s.y*c.z , 0.0,
+				   c.y*s.z ,   c.x*c.z + s.x*s.y*s.z , -s.x*c.z + c.x*s.y*s.z , 0.0,
+				  -s.y     ,   s.x*c.y               ,  c.x*c.y               , 0.0,
+				   0.     ,   0                   ,  0                   , 1.);
+
+	return   scale*rotate;
+}
+
+
+
+
+
+export annotation distill_off();
+
+export material OmniGlass_Opacity(
+	color absorption_coeff = color(0.f, 0.f, 0.f)  // hiding this parameter as it does not exist in the new material
+	[[
+		anno::hidden(),
+		anno::unused()
+	]],
+	uniform bool use_glass_color_texture = false
+	[[
+		anno::hidden(),
+		anno::unused()
+	]],
+	uniform color glass_color = color(1.f, 1.f, 1.f) [[
+		anno::display_name("Glass Color"),
+		anno::description("Sets the color of the glass"),
+		anno::hard_range(color(0.0), color(1.0)),
+		anno::in_group("Color")
+	]],
+	uniform texture_2d glass_color_texture = texture_2d() [[
+		anno::display_name("Glass Color Texture"),
+		anno::description("Specifies the texture to be used for the glass color of the material"),
+		anno::in_group("Color")
+	]],
+	float frosting_roughness = 0.f [[
+		anno::display_name("Glass Roughness"),
+		anno::description("Sets the roughness of the glass material "),
+		anno::hard_range(0.0, 1.0),
+		anno::in_group("Roughness")
+	]],
+	uniform float glass_ior = 1.491f [[
+		anno::display_name("Glass IOR"),
+		anno::description("Sets IOR of the glass material "),
+		anno::soft_range(1.0f, 4.0f),
+		anno::in_group("Refraction")
+	]],
+	uniform bool thin_walled = false [[
+		anno::display_name("Thin Walled"),
+		anno::description("When enabled, the material is considered thin-walled. Use this, when you have glass surfaces that are modeled with a single plane"),
+		anno::in_group("Refraction")
+	]],
+	
+	
+	// NEW PARAMETERS
+	uniform float depth = 0.001f [[	
+		anno::description("Controls how much light is absorbed through the surface"),
+		anno::display_name("Volume Absorption Scale"),
+		anno::in_group("Color"),
+		anno::soft_range(0.f, 1.f),
+		anno::hard_range(0.f, 1000.f)
+	]],
+	float roughness_texture_influence = 1.f [[
+		anno::display_name("Roughness Texture Influence"),
+		anno::in_group("Roughness"),
+		anno::hard_range(0.0f, 1.0f)
+	]],
+	uniform texture_2d roughness_texture = texture_2d() [[
+		anno::description("The roughness texture"),
+		anno::display_name("Roughness Texture"),
+		anno::in_group("Roughness"),
+		anno::usage("")
+	]],
+	uniform texture_2d reflection_color_texture = texture_2d() [[
+		anno::description("The reflection color texture"),
+		anno::display_name("Reflection Color Texture"),
+		anno::in_group("Reflection")
+	]],
+	uniform color reflection_color = color(1.f, 1.f, 1.f) [[
+		anno::display_name("Reflection Color"),
+		anno::in_group("Reflection")
+	]],
+	uniform texture_2d normal_map_texture = texture_2d() [[
+		anno::description("The normal map texture"),
+		anno::display_name("Normal Map Texture"),
+		anno::in_group("Normal"),
+		anno::usage("")
+	]],
+	uniform float normal_map_strength = 1.0 [[
+		anno::description("Determines the degree of bumpiness"),
+		anno::display_name("Normal Map Strength"),
+		anno::in_group("Normal"),
+		anno::usage(""),
+		anno::soft_range(0.f, 1.f)
+	]],
+	uniform bool flip_tangent_u = false  [[
+        anno::display_name("Normal Map Flip U Tangent"),
+        anno::in_group("Normal")
+    ]],
+	uniform bool flip_tangent_v = true [[
+        anno::display_name("Normal Map Flip V Tangent"),
+        anno::in_group("Normal")
+    ]],
+
+	// Cutout Opacity
+	uniform bool enable_opacity = true
+	[[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+	uniform float cutout_opacity = 1.0f [[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Amount"),
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity")
+	]],	
+	uniform texture_2d cutout_opacity_texture = texture_2d() [[
+		anno::description("The opacity map"),
+		anno::display_name("Opacity Map"),
+		anno::in_group("Opacity")
+	]],
+	uniform base::mono_mode cutout_opacity_mono_source = base::mono_alpha [[
+		anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum"),
+		anno::display_name("Opacity Mono Source"),
+		anno::in_group("Opacity"),
+		anno::usage("")
+	]],
+	uniform float opacity_threshold = 0.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Threshold"),
+		anno::description("If negative, disable cutout_opacity; if 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity")
+	]],
+		
+	//
+	// End of new
+	//
+	// UV Projection Group
+	//
+	uniform bool project_uvw = false
+	[[
+		anno::display_name("Enable Project UVW Coordinates"),
+		anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+		anno::in_group("UV")
+	]],
+	uniform bool world_or_object = false
+	[[
+		anno::display_name("Enable World Space"),
+		anno::description("When set to 'true' uses world space for projection, when 'false' object space is used"),
+		anno::in_group("UV")
+	]],
+	
+	// UV Space selector
+	uniform int uv_space_index =  0
+	[[
+		anno::display_name("UV Space Index"),
+		anno::description("Choose the UV Space Index to be used"),
+		anno::in_group("UV"),
+		anno::hard_range(0, 3)
+	]],
+	uniform float2 texture_translate =  float2(0.0f)
+	[[
+		anno::display_name("Texture Translate"),
+		anno::description("Controls the position of the texture."),
+		anno::in_group("UV")
+	]],
+	uniform float texture_rotate =  0.f
+	[[
+		anno::display_name("Texture Rotate"),
+		anno::description("Rotates angle of the texture in degrees."),
+		anno::in_group("UV")
+	]],
+	uniform float2 texture_scale =  float2(1.0f)
+	[[
+		anno::display_name("Texture Scale"),
+		anno::description("Larger numbers increase the size."),
+		anno::in_group("UV")
+	]])
+[[ 
+	anno::copyright_notice(COPYRIGHT),
+	anno::author("NVIDIA CORPORATION"),
+	anno::display_name("Omni Glass Opacity"),
+	anno::version( 1, 0, 0),
+	anno::description("Omni Glass Opacity Material"),
+ 	anno::in_group("Base"),
+	anno::key_words(string[]("omni", "omniverse", "glass", "transparent", "window", "transparency", "workflow")),
+	distill_off()
+]]
+ = 
+	let {
+/* Material Properties */		
+
+		bool local_thin_walled = (tex::texture_isvalid(cutout_opacity_texture) || cutout_opacity != 1.f) ? 
+									true : thin_walled;
+		
+		color local_glass_ior = glass_ior;
+
+/* UVW Properties */		
+		// Generating the texture coordinates for the texture lookups
+		base::texture_coordinate_system the_system = world_or_object ? 
+										base::texture_coordinate_world : 
+										base::texture_coordinate_object;
+		
+		
+		base::texture_coordinate_info uvw = project_uvw ? 
+												base::coordinate_projection(
+													coordinate_system: the_system,
+													texture_space: uv_space_index,
+													projection_type: base::projection_cubic ) :
+												base::coordinate_source(
+													coordinate_system: base::texture_coordinate_uvw,
+													texture_space: uv_space_index
+		);									
+		
+		base::texture_coordinate_info  transformed_uvw =  base::transform_coordinate(
+									transform: rotation_translation_scale(
+										scaling: float3(texture_scale.x, texture_scale.y, 1.0),
+										rotation: float3(0.0, 0.0, texture_rotate/180.*math::PI ),
+										translation: float3(texture_translate.x, texture_translate.y, 0.0)
+									),
+									coordinate: uvw
+		);
+		float opacity_value = get_float(
+						cutout_opacity_texture,
+						cutout_opacity,
+						transformed_uvw,
+						cutout_opacity_mono_source
+						);
+
+		// The opacity_threshold is interpreted as follows:
+		// 1. opacity_threshold > 0: binary opacity masking mode
+		//   i.e.: if opacity_value > opacity_threshold we remap opacity_value to 1.0, otherwise to 0.0
+		// 2. opacity_threshold == 0: fractional opacity mode. Leaves the opacity_value untouched,
+		//   allowing the renderer to use fractional cutout_opacity values, if it supports this feature
+		//
+		// NOTE: when the renderer does not enable 'fractional cutout opacity' it interprets
+		// cutout_opacity values of 1.0 as opaque and anything below as fully transparent
+		float local_cutout_opacity = enable_opacity ? ((opacity_threshold == 0.0) ? opacity_value : ((opacity_value >= opacity_threshold) ? 1.0 : 0)) : 1.0;
+						
+		color local_reflection_color = get_color(
+						reflection_color_texture,
+						reflection_color,
+						transformed_uvw
+						);
+						
+		color local_transmission_color =  get_color(
+						glass_color_texture, 
+						glass_color, 
+						transformed_uvw
+						);
+						
+/* Surface Properties */		
+		float local_roughness = apply_roughness_influence(
+						roughness_texture,
+						frosting_roughness,
+						roughness_texture_influence,
+						transformed_uvw
+						);
+		
+		float local_roughness_squared = local_roughness * local_roughness;
+		bsdf ggx_1 = ::df::microfacet_ggx_smith_bsdf(
+					local_roughness_squared,
+					local_roughness_squared, 
+					local_reflection_color,
+					::state::texture_tangent_u(0),
+					::df::scatter_reflect, 
+					""
+					);
+		
+		bsdf ggx_2 = ::df::microfacet_ggx_smith_bsdf(
+					local_roughness_squared,
+					local_roughness_squared,
+					local_transmission_color, 
+					::state::texture_tangent_u(0), 
+					::df::scatter_transmit, 
+					""
+					);
+		
+		material_surface local_surface(
+			::df::fresnel_layer(
+				glass_ior, 
+				1.f,
+				ggx_1,
+				ggx_2,
+				normal: ::state::normal()
+			),
+			material_emission()
+			);
+		
+/* Volume Properties */
+		color local_volume_absorption = depth;
+		color local_volume_scattering = color(0.f, 0.f, 0.f);
+		material_volume local_volume(
+			vdf(),
+			local_volume_absorption,
+			local_volume_scattering
+		);
+
+	// Normal calculations
+	float3 the_normal =  tex::texture_isvalid(normal_map_texture) ?
+							base::tangent_space_normal_texture(
+							texture:        normal_map_texture,
+							factor:         normal_map_strength,
+							flip_tangent_u: flip_tangent_u,
+							flip_tangent_v: flip_tangent_v,
+							uvw:            transformed_uvw
+							//flip_tangent_v: true
+							): state::normal() ;	
+
+/* Geometry Properties */
+
+	material_geometry local_geometry(
+			float3(0.f),
+			local_cutout_opacity,
+			the_normal
+	);
+/* 		material_geometry local_geometry(
+			float3(0.f),
+			local_cutout_opacity,
+			::base::tangent_space_normal_texture(
+				normal_map_texture, 
+				normal_map_strength, 
+				false, 
+				true, /*flip_tangent_v OM-22707*/
+				transformed_uvw, 
+				float2(0.f, 1.f), 
+				float2(0.f, 1.f), 
+				::tex::wrap_repeat, 
+				::tex::wrap_repeat, 
+				false, 
+				1.f, 
+				0.f)
+		); */
+		
+	} in
+		material(
+			thin_walled: local_thin_walled,
+			surface: local_surface,
+			ior: local_glass_ior,
+			volume: local_volume,
+			geometry: local_geometry);

saved/assets/_dependencies/public_validation/materials/OmniGlass_Opacity_1.mdl

@@ -0,0 +1,487 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+
+mdl 1.4;
+
+import ::tex::*;
+import ::base::*;
+import ::math::*;
+import ::anno::*;
+import ::df::*;
+import ::state::*;
+import OmniPBRBase::*;
+
+const string COPYRIGHT =
+" Copyright 1986, 2020 NVIDIA Corporation. All rights reserved.\n"
+" MDL MATERIALS ARE PROVIDED PURSUANT TO AN END USER LICENSE  AGREEMENT,\n"
+" WHICH WAS ACCEPTED IN ORDER TO GAIN ACCESS TO THIS FILE.  IN PARTICULAR,\n"
+" THE MDL MATERIALS ARE PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND,\n"
+" EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF\n"
+" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF\n"
+" COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA\n"
+" CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY\n"
+" GENERAL, SPECIAL,  INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN\n"
+" AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR\n"
+" INABILITY TO USE THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.\n";
+
+export annotation distill_off();
+
+
+float get_float(
+    uniform texture_2d t,
+    float f,
+    base::texture_coordinate_info uvw,
+    uniform base::mono_mode mono_source = base::mono_maximum
+)
+{
+    return tex::texture_isvalid(t) ?
+        base::file_texture(
+            t,
+            color(0.f, 0.f, 0.f),
+            color(1.f, 1.f, 1.f),
+            mono_source,
+            uvw,
+            float2(0.f, 1.f),
+            float2(0.f, 1.f),
+            tex::wrap_repeat,
+            tex::wrap_repeat,
+            false
+        ).mono :
+        f;
+}
+
+color get_color(
+    uniform texture_2d t,
+    color c,
+    base::texture_coordinate_info uvw
+)
+{
+    return tex::texture_isvalid(t) ?
+        base::file_texture(
+            t,
+            color(0.f, 0.f, 0.f),
+            color(1.f, 1.f, 1.f),
+            base::mono_alpha,
+            uvw,
+            float2(0.f, 1.f),
+            float2(0.f, 1.f),
+            tex::wrap_repeat,
+            tex::wrap_repeat,
+            false
+        ).tint :
+        c;
+}
+
+float apply_roughness_influence(
+    uniform texture_2d roughness_texture,
+    float constant_roughness,
+    float roughness_influence,
+    base::texture_coordinate_info uvw
+)
+{
+    return math::lerp(
+        constant_roughness,
+        get_float(roughness_texture, constant_roughness, uvw),
+        roughness_influence
+    );
+}
+
+uniform float4x4 rotation_translation_scale(
+    uniform float3 rotation = float3(0.)
+    [[
+        anno::description("Rotation applied to every UVW coordinate")
+    ]],
+    uniform float3 translation = float3(0.)
+    [[
+        anno::description("Offset applied to every UVW coordinate")
+    ]],
+    uniform float3 scaling = float3(1.)
+    [[
+        anno::description("Scale applied to every UVW coordinate")
+    ]]
+)
+[[
+    anno::description("Construct transformation matrix from Euler rotation, translation and scale"),
+    anno::hidden()
+]]
+{
+    float4x4 scale = float4x4(
+        scaling.x    , 0.           , 0.           , 0.,
+        0.           , scaling.y    , 0.           , 0.,
+        0.           , 0.           , scaling.z    , 0.,
+        translation.x, translation.y, translation.z, 1.
+    );
+
+    float3 s = math::sin(rotation);
+    float3 c = math::cos(rotation);
+    float4x4 rotate = float4x4(
+         c.y*c.z, -c.x*s.z + s.x*s.y*c.z,  s.x*s.z + c.x*s.y*c.z, 0.0,
+         c.y*s.z,  c.x*c.z + s.x*s.y*s.z, -s.x*c.z + c.x*s.y*s.z, 0.0,
+        -s.y    ,  s.x*c.y              ,  c.x*c.y              , 0.0,
+         0.     ,  0.                   ,  0.                   , 1.
+    );
+
+    return scale*rotate;
+}
+
+
+export material OmniGlass_Opacity
+(
+    color absorption_coeff = color(0.f, 0.f, 0.f)  // hiding this parameter as it does not exist in the new material
+    [[
+        anno::hidden(),
+        anno::unused()
+    ]],
+    uniform bool use_glass_color_texture = false
+    [[
+        anno::hidden(),
+        anno::unused()
+    ]],
+    uniform color glass_color = color(1.f, 1.f, 1.f)
+    [[
+        anno::display_name("Glass Color"),
+        anno::description("Sets the color of the glass"),
+        anno::hard_range(color(0.0), color(1.0)),
+        anno::in_group("Color")
+    ]],
+    uniform texture_2d glass_color_texture = texture_2d()
+    [[
+        anno::display_name("Glass Color Texture"),
+        anno::description("Specifies the texture to be used for the glass color of the material"),
+        anno::in_group("Color")
+    ]],
+    float frosting_roughness = 0.f
+    [[
+        anno::display_name("Glass Roughness"),
+        anno::description("Sets the roughness of the glass material "),
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Roughness")
+    ]],
+    uniform float glass_ior = 1.491f
+    [[
+        anno::display_name("Glass IOR"),
+        anno::description("Sets IOR of the glass material "),
+        anno::soft_range(1.0f, 4.0f),
+        anno::in_group("Refraction")
+    ]],
+    uniform bool thin_walled = false
+    [[
+        anno::display_name("Thin Walled"),
+        anno::description("When enabled, the material is considered thin-walled. Use this, when you have glass surfaces that are modeled with a single plane"),
+        anno::in_group("Refraction")
+    ]],
+    uniform float depth = 0.001f
+    [[
+        anno::description("Controls how much light is absorbed through the surface"),
+        anno::display_name("Volume Absorption Scale"),
+        anno::in_group("Color"),
+        anno::soft_range(0.f, 1.f),
+        anno::hard_range(0.f, 1000.f)
+    ]],
+    float roughness_texture_influence = 1.f
+    [[
+        anno::display_name("Roughness Texture Influence"),
+        anno::in_group("Roughness"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+    uniform texture_2d roughness_texture = texture_2d()
+    [[
+        anno::description("The roughness texture"),
+        anno::display_name("Roughness Texture"),
+        anno::in_group("Roughness"),
+        anno::usage("")
+    ]],
+    uniform texture_2d reflection_color_texture = texture_2d()
+    [[
+        anno::description("The reflection color texture"),
+        anno::display_name("Reflection Color Texture"),
+        anno::in_group("Reflection")
+    ]],
+    uniform color reflection_color = color(1.f, 1.f, 1.f)
+    [[
+        anno::display_name("Reflection Color"),
+        anno::in_group("Reflection")
+    ]],
+    uniform texture_2d normal_map_texture = texture_2d()
+    [[
+        anno::description("The normal map texture"),
+        anno::display_name("Normal Map Texture"),
+        anno::in_group("Normal"),
+        anno::usage("")
+    ]],
+    uniform float normal_map_strength = 1.0
+    [[
+        anno::description("Determines the degree of bumpiness"),
+        anno::display_name("Normal Map Strength"),
+        anno::in_group("Normal"),
+        anno::usage(""),
+        anno::soft_range(0.f, 1.f)
+    ]],
+    uniform float geometry_normal_roughness_strength = 1.f
+    [[
+        anno::hard_range(0.f, 1.f),
+        anno::display_name("Normal map to roughness weight"),
+        anno::description("Enables and weights roughness induced by normal maps"),
+        anno::in_group("Normal")
+    ]],
+    uniform bool flip_tangent_u = false
+    [[
+        anno::display_name("Normal Map Flip U Tangent"),
+        anno::in_group("Normal")
+    ]],
+    uniform bool flip_tangent_v = true
+    [[
+        anno::display_name("Normal Map Flip V Tangent"),
+        anno::in_group("Normal")
+    ]],
+
+    // Cutout Opacity
+    uniform bool enable_opacity = true
+    [[
+        anno::display_name("Enable Opacity"),
+        anno::description("Enables the use of cutout opacity"),
+        anno::in_group("Opacity")
+    ]],
+    uniform float cutout_opacity = 1.0f
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::display_name("Opacity Amount"),
+        anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+        anno::in_group("Opacity")
+    ]],
+    uniform texture_2d cutout_opacity_texture = texture_2d()
+    [[
+        anno::description("The opacity map"),
+        anno::display_name("Opacity Map"),
+        anno::in_group("Opacity")
+    ]],
+    uniform base::mono_mode cutout_opacity_mono_source = base::mono_alpha
+    [[
+        anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum"),
+        anno::display_name("Opacity Mono Source"),
+        anno::in_group("Opacity"),
+        anno::usage("")
+    ]],
+    uniform float opacity_threshold = 0.f
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::display_name("Opacity Threshold"),
+        anno::description("If negative, disable cutout_opacity; if 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+        anno::in_group("Opacity")
+    ]],
+
+    // UV Projection Group
+    uniform bool project_uvw = false
+    [[
+        anno::display_name("Enable Project UVW Coordinates"),
+        anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+        anno::in_group("UV")
+    ]],
+    uniform bool world_or_object = false
+    [[
+        anno::display_name("Enable World Space"),
+        anno::description("When set to 'true' uses world space for projection, when 'false' object space is used"),
+        anno::in_group("UV")
+    ]],
+
+    // UV Space Selector
+    uniform int uv_space_index = 0
+    [[
+        anno::display_name("UV Space Index"),
+        anno::description("Choose the UV Space Index to be used"),
+        anno::in_group("UV"),
+        anno::hard_range(0, 3)
+    ]],
+    uniform float2 texture_translate = float2(0.0f)
+    [[
+        anno::display_name("Texture Translate"),
+        anno::description("Controls the position of the texture."),
+        anno::in_group("UV")
+    ]],
+    uniform float texture_rotate = 0.f
+    [[
+        anno::display_name("Texture Rotate"),
+        anno::description("Rotates angle of the texture in degrees."),
+        anno::in_group("UV")
+    ]],
+    uniform float2 texture_scale = float2(1.0f)
+    [[
+        anno::display_name("Texture Scale"),
+        anno::description("Larger numbers increase the size."),
+        anno::in_group("UV")
+    ]]
+)
+[[
+    anno::copyright_notice(COPYRIGHT),
+    anno::author("NVIDIA CORPORATION"),
+    anno::display_name("Omni Glass Opacity"),
+    anno::version( 1, 0, 0),
+    anno::description("Omni Glass Opacity Material"),
+    anno::in_group("Base"),
+    anno::key_words(string[]("omni", "omniverse", "glass", "transparent", "window", "transparency", "workflow")),
+    distill_off()
+]]
+= let {
+    // Material Properties
+    bool local_thin_walled = (tex::texture_isvalid(cutout_opacity_texture) || cutout_opacity != 1.f) ? true : thin_walled;
+    color local_glass_ior = glass_ior;
+
+
+    // UVW Properties
+    // Generating the texture coordinates for the texture lookups
+    base::texture_coordinate_system the_system = world_or_object ?
+        base::texture_coordinate_world :
+        base::texture_coordinate_object;
+
+    base::texture_coordinate_info uvw = project_uvw ?
+        base::coordinate_projection(
+            coordinate_system: the_system,
+            texture_space: uv_space_index,
+            projection_type: base::projection_cubic
+        ) :
+        base::coordinate_source(
+            coordinate_system: base::texture_coordinate_uvw,
+            texture_space: uv_space_index
+        );
+
+    base::texture_coordinate_info transformed_uvw = base::transform_coordinate(
+        transform: rotation_translation_scale(
+            scaling: float3(texture_scale.x, texture_scale.y, 1.0),
+            rotation: float3(0.0, 0.0, texture_rotate/180.*math::PI),
+            translation: float3(texture_translate.x, texture_translate.y, 0.0)
+        ),
+        coordinate: uvw
+    );
+
+
+    // Opacity Properties
+    float opacity_value = get_float(cutout_opacity_texture, cutout_opacity, transformed_uvw, cutout_opacity_mono_source);
+
+    // The opacity_threshold is interpreted as follows:
+    // 1. opacity_threshold > 0: binary opacity masking mode
+    //   i.e.: if opacity_value > opacity_threshold we remap opacity_value to 1.0, otherwise to 0.0
+    // 2. opacity_threshold == 0: fractional opacity mode. Leaves the opacity_value untouched,
+    //   allowing the renderer to use fractional cutout_opacity values, if it supports this feature
+    //
+    // NOTE: when the renderer does not enable 'fractional cutout opacity' it interprets
+    // cutout_opacity values of 1.0 as opaque and anything below as fully transparent
+    float local_cutout_opacity = enable_opacity ?
+        ((opacity_threshold == 0.0) ?
+            opacity_value :
+            ((opacity_value >= opacity_threshold) ? 1.0 : 0)
+        ) :
+        1.0;
+
+
+    // Surface Properties
+    color local_reflection_color = get_color(reflection_color_texture, reflection_color, transformed_uvw);
+    color local_transmission_color = get_color(glass_color_texture, glass_color, transformed_uvw);
+
+    OmniPBRBase::NormalData defaultData(state::normal(), float2(0.f));
+    OmniPBRBase::NormalData normal_data = tex::texture_isvalid(normal_map_texture) ?
+        OmniPBRBase::tangent_space_normal_roughness_texture(
+            normal_map_texture,
+            normal_map_strength,
+            flip_tangent_u,
+            flip_tangent_v,
+            transformed_uvw,
+            float2(0.f, 1.f),
+            float2(0.f, 1.f),
+            tex::wrap_repeat,
+            tex::wrap_repeat,
+            false,
+            1.f,
+            0.f,
+            0.f,
+            int2(0),
+            tex::wrap_repeat,
+            30.f
+        ) :
+        defaultData;
+
+    float local_roughness = apply_roughness_influence(
+        roughness_texture,
+        frosting_roughness,
+        roughness_texture_influence,
+        transformed_uvw
+    );
+    float2 local_roughness_squared(
+        (local_roughness * local_roughness +
+        geometry_normal_roughness_strength * normal_data.roughness.x * normal_data.roughness.x),
+        (local_roughness * local_roughness +
+        geometry_normal_roughness_strength * normal_data.roughness.y * normal_data.roughness.y)
+    );
+
+    float3 the_normal = normal_data.normal;
+
+    bsdf ggx_1 = ::df::microfacet_ggx_smith_bsdf(
+        roughness_u: local_roughness_squared.x,
+        roughness_v: local_roughness_squared.y,
+        tint: local_reflection_color,
+        tangent_u: ::state::texture_tangent_u(0),
+        mode: ::df::scatter_reflect
+    );
+
+    bsdf ggx_2 = ::df::microfacet_ggx_smith_bsdf(
+        roughness_u: local_roughness_squared.x,
+        roughness_v: local_roughness_squared.y,
+        tint: local_transmission_color,
+        tangent_u: ::state::texture_tangent_u(0),
+        mode: ::df::scatter_transmit
+    );
+
+    material_surface local_surface(
+        ::df::fresnel_layer(
+            ior: glass_ior,
+            weight: 1.f,
+            layer: ggx_1,
+            base: ggx_2,
+            normal: the_normal
+        ),
+        material_emission()
+    );
+
+
+    // Volume Properties
+    color local_volume_absorption = depth;
+    color local_volume_scattering = color(0.f, 0.f, 0.f);
+
+    material_volume local_volume(vdf(), local_volume_absorption, local_volume_scattering);
+
+
+    // Geometry Properties
+    material_geometry local_geometry(float3(0.f), local_cutout_opacity, the_normal);
+
+} in material(
+    thin_walled: local_thin_walled,
+    surface: local_surface,
+    ior: local_glass_ior,
+    volume: local_volume,
+    geometry: local_geometry
+);

saved/assets/_dependencies/public_validation/materials/OmniPBR.mdl

@@ -0,0 +1,392 @@
+/***************************************************************************************************
+ * Copyright 2022 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+mdl 1.7;
+
+import ::df::*;
+import ::state::*;
+import ::math::*;
+import ::base::*;
+import ::state::*;
+import ::tex::*;
+import ::anno::*;
+
+import ::debug::*;
+
+import ::nvidia::core_definitions::file_texture;
+import ::nvidia::core_definitions::normalmap_texture;
+
+import OmniPBR_ClearCoat::*;
+
+
+//  OmniPBR  //
+
+export material OmniPBR(
+
+    //  Albdeo  //
+
+	color diffuse_color_constant = color(0.2) [[
+		anno::display_name("Albedo Color"),
+		anno::description("This is the albedo base color"),
+		anno::in_group("Albedo")
+	]],
+	uniform texture_2d diffuse_texture = texture_2d() [[
+		anno::display_name("Albedo Map"),
+		anno::in_group("Albedo")
+	]],
+	float albedo_desaturation = float(0.0) [[
+		anno::display_name("Albedo Desaturation"),
+		anno::description("Desaturates the diffuse color"),
+		anno::in_group("Albedo"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	float albedo_add = float(0.0) [[
+		anno::display_name("Albedo Add"),
+		anno::description("Adds a constant value to the diffuse color "),
+		anno::in_group("Albedo"),
+		anno::soft_range(float(-1.0), float(1.0))
+	]],	
+	float albedo_brightness = float(1.0) [[
+		anno::display_name("Albedo Brightness"),
+		anno::description("Multiplier for the diffuse color "),
+		anno::in_group("Albedo"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],	
+	color diffuse_tint = color(1.0) [[
+		anno::display_name("Color Tint"),
+		anno::description("When enabled, this color value is multiplied over the final albedo color"),
+		anno::in_group("Albedo")
+	]],
+	
+
+	//  Reflectivity //
+	
+	float reflection_roughness_constant = float(0.5) [[
+		anno::display_name("Roughness Amount"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	float reflection_roughness_texture_influence = float(0.0) [[
+		anno::display_name("Roughness Map Influence"),
+		anno::description("Blends between the constant value and the lookup of the roughness texture"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d reflectionroughness_texture = texture_2d() [[
+		anno::display_name("Roughness Map"),
+		anno::in_group("Reflectivity"),
+		anno::usage("roughness")
+	]],
+	float metallic_constant = float(0.0) [[
+		anno::display_name("Metallic Amount"),
+		anno::description("Metallic Material"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],	
+	float metallic_texture_influence = float(0.0) [[
+		anno::display_name("Metallic Map Influence"),
+		anno::description("Blends between the constant value and the lookup of the metallic texture"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d metallic_texture = texture_2d() [[
+		anno::display_name("Metallic Map"),
+		anno::in_group("Reflectivity"),
+		anno::usage("metalness")
+	]], 
+	float specular_level = float(0.5) [[
+		anno::display_name("Specular"),
+		anno::description("The specular level (intensity) of the material"),
+		anno::in_group("Reflectivity"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	
+
+	//  ORM  //
+ 
+	uniform bool enable_ORM_texture = false [[
+		anno::display_name("Enable ORM Texture"),
+		anno::description("The ORM texture will be used to extract the Occlusion, Roughness and Metallic textures from R,G,B channels"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d ORM_texture = texture_2d() [[
+		anno::display_name("ORM Map"),
+		anno::description("Texture that has Occlusion, Roughness and Metallic maps stored in their respective R, G and B channels"),
+		anno::in_group("Reflectivity"),
+		anno::usage("roughness")
+	]],
+
+
+	//  AO Group  // 
+
+	float ao_to_diffuse = 0.0 [[
+		anno::display_name("AO to diffuse"),
+		anno::description("Controls the amount of ambient occlusion multiplied against the diffuse color channel"),
+		anno::in_group("AO"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d ao_texture = texture_2d() [[
+		anno::display_name("Ambient Occlusion Map"),
+		anno::description("The ambient occlusion texture for the material"),
+		anno::in_group("AO"),
+		anno::usage("occlusion")
+	]],
+	
+	
+	//  Emission //  
+
+	uniform bool enable_emission = false [[
+        anno::display_name("Enable Emission"),
+		anno::description("Enables the emission of light from the material"),
+		anno::in_group("Emissive")
+	]],
+	color emissive_color = color(1.0,0.1,0.1) [[
+		anno::display_name("Emissive Color"),
+		anno::description("The emission color"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true")
+	]],
+    	uniform texture_2d emissive_color_texture = texture_2d() [[ 
+		anno::display_name("Emissive Color map"),
+        anno::in_group("Emissive"),
+		anno::description("The emissive color texture"),
+        anno::enable_if("enable_emission == true")
+    ]],	
+	uniform texture_2d emissive_mask_texture = texture_2d() [[
+		anno::display_name("Emissive Mask map"),
+		anno::description("The texture masking the emissive color"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true"),
+	 	anno::usage("occlusion")
+	]],
+	float emissive_intensity = float(40.0) [[
+		anno::display_name("Emissive Intensity"),    
+		anno::description("Intensity of the emission"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true")
+	]],	
+
+
+    //  Cutout Opacity  //
+	
+    uniform bool enable_opacity = false [[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+ 	uniform texture_2d opacity_texture = texture_2d() [[
+		anno::display_name("Opacity Map"),
+		anno::in_group("Opacity"),
+		anno::usage("opacity")
+	]],
+	float opacity_constant = float(1.0) [[
+		anno::display_name("Opacity Amount"),    
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform bool enable_opacity_texture = false [[
+		anno::display_name("Enable Opacity Texture"),
+		anno::description("Enables or disables the usage of the opacity texture map"),
+		anno::in_group("Opacity")
+	]],
+	uniform base::mono_mode opacity_mode = base::mono_average [[
+		anno::display_name("Opacity Mono Source"),
+		anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum"),
+		anno::in_group("Opacity")
+	]],
+	uniform float opacity_threshold = float(0.0) [[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Threshold"),
+		anno::description("If 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity")
+	]],
+
+
+
+	//  Normal  // 
+	
+	uniform float geometry_normal_roughness_strength = 1.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Normal map to roughness weight"),
+		anno::description("Enables and weights roughness induced by normal maps"),
+		anno::in_group("Normal")
+	]],
+	uniform float bump_factor = float(1.0) [[
+		anno::display_name("Normal Strength"),
+		anno::description("Strength of normal map"),
+		anno::in_group("Normal"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d normalmap_texture = texture_2d() [[
+		anno::display_name("Normal Map"),
+		anno::in_group("Normal"),
+		anno::usage("normal")
+	]], 
+	uniform float detail_bump_factor = float(0.3) [[
+		anno::display_name("Detail Normal Strength"),
+		anno::in_group("Normal"),
+		anno::description("Strength of the detail normal"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d detail_normalmap_texture = texture_2d() [[
+		anno::display_name("Detail Normal Map"),
+		anno::in_group("Normal"),
+		anno::usage("normal")
+	]],
+	uniform bool flip_tangent_u = false  [[
+        anno::display_name("Normal Map Flip U Tangent"),
+        anno::in_group("Normal")
+    	]],
+	uniform bool flip_tangent_v = true [[
+        anno::display_name("Normal Map Flip V Tangent"),
+        anno::in_group("Normal")
+    	]],
+
+	//  UVW Projection Group  //
+
+	uniform bool project_uvw = false [[
+		anno::display_name("Enable Project UVW Coordinates"),
+		anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+		anno::in_group("UV")
+	]],
+	uniform bool world_or_object = false [[
+		anno::display_name("Enable World Space"),
+		anno::description("When enabled, uses world space for projection, otherwise object space is used"),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform int uv_space_index =  0 [[
+		anno::display_name("UV Space Index"),
+		anno::description("UV Space Index."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true"),
+		anno::hard_range(int(0), int(3))
+	]],
+	
+	//  UVW Adjustments Group  //
+
+	uniform float2 texture_translate =  float2(0.0) [[
+		anno::display_name("Texture Translate"),
+		anno::description("Controls position of texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float texture_rotate = float(0.0) [[
+		anno::display_name("Texture Rotate"),
+		anno::description("Rotates angle of texture in degrees."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float2 texture_scale =  float2(1.0) [[
+		anno::display_name("Texture Tiling"),
+		anno::description("Controls the repetition of the texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float2 detail_texture_translate =  float2(0.0) [[
+		anno::display_name("Detail Texture Translate"),
+		anno::description("Controls the position of the detail texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float detail_texture_rotate =  float(0.0) [[
+		anno::display_name("Detail Texture Rotate"),
+		anno::description("Rotates angle of the detail texture in degrees."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float2 detail_texture_scale =  float2(1.0) [[
+		anno::display_name("Detail Texture Tiling"),
+		anno::description("Controls the repetition of the detail texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]]
+) 
+[[
+	anno::display_name("OmniPBR"),
+	anno::description("OmniPBR Base with support for clear coat, opacity and ORM textures."),
+    anno::in_group("Base"),
+	anno::version( 2, 1, 2),
+	anno::author("NVIDIA CORPORATION"), 
+	anno::key_words(string[]("omni", "PBR", "opacity", "omniverse", "generic"))
+]] = let {
+
+material base = OmniPBR_ClearCoat::OmniPBR_ClearCoat(
+    diffuse_color_constant: diffuse_color_constant,
+    diffuse_texture: diffuse_texture,
+    albedo_desaturation: albedo_desaturation,
+    albedo_add: albedo_add,
+    albedo_brightness: albedo_brightness,
+    diffuse_tint: diffuse_tint,
+    reflection_roughness_constant: reflection_roughness_constant,
+    reflection_roughness_texture_influence: reflection_roughness_texture_influence,
+    reflectionroughness_texture: reflectionroughness_texture,
+    metallic_constant: metallic_constant,
+    metallic_texture_influence: metallic_texture_influence,
+    metallic_texture: metallic_texture,
+    specular_level: specular_level,
+    enable_ORM_texture: enable_ORM_texture,
+    ORM_texture: ORM_texture,
+    ao_to_diffuse: ao_to_diffuse,
+    ao_texture: ao_texture,
+	enable_emission: enable_emission,
+    emissive_color: emissive_color,
+    emissive_color_texture: emissive_color_texture, 
+    emissive_mask_texture: emissive_mask_texture,
+    emissive_intensity: emissive_intensity,      
+    enable_opacity: enable_opacity,          
+    opacity_texture: opacity_texture,         
+    opacity_constant: opacity_constant,        
+    enable_opacity_texture: enable_opacity_texture,  
+    opacity_mode: opacity_mode,            
+    opacity_threshold: opacity_threshold,
+    geometry_normal_roughness_strength:     geometry_normal_roughness_strength,
+    bump_factor: bump_factor,             
+    normalmap_texture: normalmap_texture,
+    detail_bump_factor: detail_bump_factor,      
+    detail_normalmap_texture: detail_normalmap_texture,
+    flip_tangent_u: flip_tangent_u,          
+    flip_tangent_v: flip_tangent_v,                  
+	project_uvw: project_uvw,
+    world_or_object: world_or_object,         
+    uv_space_index: uv_space_index,          
+    texture_translate: texture_translate,       
+    texture_rotate: texture_rotate,          
+    texture_scale: texture_scale,           
+    detail_texture_translate: detail_texture_translate,
+    detail_texture_rotate: detail_texture_rotate, 
+    detail_texture_scale: detail_texture_scale
+);
+
+} in material(
+surface:  base.surface,
+geometry: base.geometry
+);

saved/assets/_dependencies/public_validation/materials/OmniPBRBase.mdl

@@ -0,0 +1,493 @@
+/***************************************************************************************************
+ * Copyright 2022 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+mdl 1.7;
+
+import ::df::*;
+import ::state::*;
+import ::math::*;
+import ::base::*;
+import ::tex::*;
+import ::anno::*;
+import ::anno::*;
+
+export float3 HemiOctahedronToUnitVector( float2 Oct ) [[
+	anno::hidden()
+]]
+{
+    Oct = float2( Oct.x + Oct.y, Oct.x - Oct.y ) * 0.5;
+    float3 N = float3( Oct.x, Oct.y, 1.0 - math::dot( float2(1.0), math::abs(Oct) ) );
+    return math::normalize(N);
+}
+
+export struct NormalData  [[
+	anno::hidden()
+]]
+{
+	float3 normal;
+	float2 roughness;
+};
+
+export NormalData tangent_space_normal_roughness_texture(
+    uniform texture_2d texture
+        [[
+            anno::description("The input texture"),
+            anno::usage("normal")
+        ]],
+    uniform float factor = 1.0f
+        [[ anno::description("Determines the degree of bumpiness") ]],
+    uniform bool flip_tangent_u = false
+        [[ anno::description("Can be used to fix mismatches between the object's tangent space and the normal map's tangent space") ]],
+    uniform bool flip_tangent_v = false
+        [[ anno::description("Can be used to fix mismatches between the object's tangent space and the normal map's tangent space") ]],
+    base::texture_coordinate_info uvw = base::texture_coordinate_info()
+        [[ anno::description("Parameterization to be used for texture mapping. Defaults to texture channel 0.") ]],
+    uniform float2 crop_u = float2( 0.0, 1.0)
+        [[ anno::description("Restricts the texture access to sub-domain of the texture in the u direction") ]],
+    uniform float2 crop_v = float2( 0.0, 1.0)
+        [[ anno::description("Restricts the texture access to sub-domain of the texture in the v direction") ]],
+    uniform tex::wrap_mode wrap_u = tex::wrap_repeat
+        [[ anno::description("Wrapping mode in the u direction") ]],
+    uniform tex::wrap_mode wrap_v = tex::wrap_repeat
+        [[ anno::description("Wrapping mode in the v direction") ]],
+    uniform bool clip = false
+        [[
+            anno::description("deprecated, usewrap_mode=tex::wrap_clip. Defines wrap_clamp behavior. If true, lookup outside [0,1] results in no bump"),
+            anno::hidden()
+        ]],
+    uniform float scale = 1.
+        [[
+            anno::description("Scales the value red from the texture file. Can be used to adapt to different normal map formats"),
+            anno::unused()
+        ]],
+    uniform float offset = 0.
+        [[
+            anno::description("Offset applied to the value red from the texture file. Can be used to adapt to different normal map formats"),
+            anno::unused()
+        ]],
+    uniform float animation_start_time = 0.
+        [[ anno::description("When to start playing first frame of the animation ") ]],
+    uniform int2 animation_crop  = int2(0, 0)
+        [[ anno::description("If the texture is an animation, the range of frames to be played can be specified.") ]],
+    uniform tex::wrap_mode animation_wrap = tex::wrap_repeat
+        [[ anno::description("Defines what to do outside of regular animation time") ]],
+    uniform float animation_fps = 30
+        [[ anno::description("Framerate to use for animation playback") ]]
+)
+[[
+    anno::description("Interprets the color values of a bitmap as a vector in tangent space"),
+	anno::hidden(),
+    anno::noinline()
+]]
+{
+	NormalData normalData;
+	normalData.roughness = float2(0);
+	normalData.normal = state::normal();
+
+    float frame = 0.0;
+    if(animation_crop != int2(0,0)) //only if we have an animation
+    {
+        frame = (::state::animation_time()-animation_start_time) * animation_fps ; //start playing at first frame of the animation
+        switch ( animation_wrap) {
+            case tex::wrap_repeat:
+                frame=frame>0?  math::fmod(frame,animation_crop.y-animation_crop.x)+animation_crop.x:
+                                math::fmod(frame,animation_crop.y-animation_crop.x)+animation_crop.y;
+                break;
+            case tex::wrap_mirrored_repeat:
+                float animation_crop_2y = 2.0*animation_crop.y;
+                frame=frame>0?  math::fmod(frame,(animation_crop.y-animation_crop.x)*2.0)+animation_crop.x:
+                                math::fmod(frame,(animation_crop.y-animation_crop.x)*2.0)+animation_crop_2y-animation_crop.x;
+                if(frame>animation_crop.y)
+                    frame = animation_crop_2y-frame;
+                break;
+            case tex::wrap_clamp:
+                frame = math::clamp( frame+animation_crop.x, animation_crop.x, animation_crop.y);
+                break;
+            case tex::wrap_clip:
+                frame += animation_crop.x;
+                if(frame < animation_crop.x || frame > animation_crop.y) return normalData;
+                break;
+        }
+    }
+
+    if (tex::width(texture) == 0 || tex::height(texture) == 0 || // avoid division by zero in texremapu for invalid resource
+        factor == 0.0f)
+        return normalData;
+    {
+        if (clip) {
+            if (wrap_u == tex::wrap_clamp && (uvw.position.x < 0. || uvw.position.x > 1.)) {
+                return normalData;
+            }
+            if (wrap_v == tex::wrap_clamp && (uvw.position.y < 0. || uvw.position.y > 1.)) {
+                return normalData;
+            }
+        }
+        if (wrap_u == tex::wrap_clip && (uvw.position.x < 0. || uvw.position.x > 1.)) {
+            return normalData;
+        }
+        if (wrap_v == tex::wrap_clip && (uvw.position.y < 0. || uvw.position.y > 1.)) {
+            return normalData;
+        }
+    }
+    bool pixel_flip_u = flip_tangent_u;
+    bool pixel_flip_v = flip_tangent_v;
+    //if we mirror repeat a tangent space texture, tangent space needs to be flipped for every other tile
+    if (wrap_u == tex::wrap_mirrored_repeat) {
+        if( uvw.position.x > 0. && int(uvw.position.x) % 2 == 1)
+            pixel_flip_u = ! pixel_flip_u;
+        else if( uvw.position.x < 0. && int(uvw.position.x) % 2 == 0)
+            pixel_flip_u = ! pixel_flip_u;
+    }
+    if (wrap_v == tex::wrap_mirrored_repeat) {
+        if( uvw.position.y > 0. && int(uvw.position.y) % 2 == 1)
+            pixel_flip_v = ! pixel_flip_v;
+        else if( uvw.position.y < 0. && int(uvw.position.y) % 2 == 0)
+            pixel_flip_v = ! pixel_flip_v;
+    }
+
+    float3 transformed_tangent_u = uvw.tangent_u;
+    float3 transformed_tangent_v = uvw.tangent_v;
+
+    if (pixel_flip_u)
+        transformed_tangent_u=-transformed_tangent_u;
+    if (pixel_flip_v)
+        transformed_tangent_v=-transformed_tangent_v;
+
+    float3 tangent_space_normal;
+	float4 normal_raw = tex::lookup_float4(texture,float2(uvw.position.x,uvw.position.y), wrap_u, wrap_v, crop_u, crop_v, frame);
+	if(normal_raw.x > 1.5)
+	{
+		// octahedron packed by OV
+		normal_raw.x -= 2.0;
+		normal_raw.x -= 0.5;
+		normal_raw.y -= 0.5;
+		tangent_space_normal = HemiOctahedronToUnitVector(float2(normal_raw.x, normal_raw.y) * 2.0);
+		normalData.roughness = float2(normal_raw.z, normal_raw.w);
+	}
+	else
+	{
+		// regular
+		tangent_space_normal = (float3(normal_raw.x, normal_raw.y, normal_raw.z) - float3(0.5)) * 2.0;
+		normalData.roughness = float2(0);
+	}
+
+	normalData.normal =  math::normalize(
+        transformed_tangent_u * tangent_space_normal.x * factor +
+        transformed_tangent_v * tangent_space_normal.y * factor +
+        state::normal() * tangent_space_normal.z);
+
+	return normalData;
+}
+
+
+export material OmniPBRBase(
+
+	
+    //  Albdeo  //
+
+	color diffuse_reflection_color = color(0.2) [[
+		anno::display_name("Albedo Color"),
+		anno::description("This is the albedo base color"),
+		anno::in_group("Albedo")
+	]],
+	color diffuse_tint = color(1.0) [[
+		anno::display_name("Albedo Tint"),
+		anno::description("When enabled, this color value is multiplied over the final albedo color"),
+		anno::in_group("Albedo")
+	]],
+
+	
+	//  Reflecitivity //
+	
+	float specular_reflection_roughness = float(0.0) [[
+		anno::display_name("Roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(0.0, 1.0)
+	]],
+	float2 specular_reflection_aniso_roughness = float2(0.0, 0.0) [[
+		anno::display_name("Aniso roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity"),
+		anno::hidden()
+	]],
+	float metalness = float(0.0) [[
+		anno::display_name("Metalness"),
+		anno::description("Bias towards pure specular reflection"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(0.0, 1.0)
+	]],	
+	float specular_level = float(0.5) [[
+		anno::display_name("Specular"),
+		anno::description("The specular level (intensity) of the material"),
+		anno::in_group("Reflectivity"),
+		anno::soft_range(0.0, 1.0)
+	]],
+
+
+	//  Emission  //
+	
+	uniform bool enable_emission = false [[
+		anno::display_name("Enable Emission"),
+		anno::description("Enables the emission of light from the material"),
+		anno::in_group("Emissive")
+	]],
+	color emission_color = color(1.0,0.1,0.1) [[
+		anno::display_name("Emissive Color"),
+		anno::description("The emission color"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true")
+	]],
+	float emission_intensity = float(40.0) [[
+		anno::display_name("Emissive Intensity"),    
+		anno::description("Intensity of the emission"),
+		anno::in_group("Emissive"),
+		anno::soft_range(0.0, 1000.0),
+		anno::enable_if("enable_emission == true")
+	]],
+
+	
+    //  Geometry Opacity  //
+	
+    uniform bool enable_opacity = false [[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+	float geometry_opacity = float(1.0) [[
+		anno::display_name("Opacity Amount"),    
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity"),
+		anno::hard_range(0.0, 1.0)
+	]],
+	uniform float geometry_opacity_threshold = 0.f
+	[[
+		anno::display_name("Opacity Threshold"),
+		anno::description("If 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity"),
+		anno::hard_range(0.0, 1.0)
+	]],
+
+	
+	//  Clearcoat // 
+	
+    uniform bool enable_coat = false [[
+		anno::display_name("Enable Clearcoat Layer"),
+		anno::description("Adds a coat layer on top of the material when enabled"),
+		anno::in_group("Clearcoat")
+	]],
+	float coat_weight = float(1.0) [[
+		anno::display_name("Clearcoat Weight"),
+		anno::description("Sets the weight for coat layer"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(0.0, 1.0)
+	]],
+	color coat_color = color(1.0) [[
+		anno::display_name("Clearcoat Tint"),
+		anno::description("Clearcoat is tinted and affects the underlying material"),
+		anno::in_group("Clearcoat")
+	]],
+	float coat_transparency = float(1.0) [[
+		anno::display_name("Clearcoat Transparency"),
+		anno::description("Adjusts the transparency of the coat. Can be turned into a fully opaque coat covering the underlying layer"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(0.0, 1.0)
+	]],
+	float coat_roughness = float(0.0) [[
+		anno::display_name("Clearcoat Roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(0.0, 1.0)
+	]],
+	float2 coat_aniso_roughness = float2(0.0, 0.0) [[
+		anno::display_name("Clearcoat aniso roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Clearcoat"),
+		anno::hidden()
+	]],
+	float coat_ior = float(1.56) [[
+		anno::display_name("Clearcoat IOR"),
+		anno::description("Sets the Index of refraction for the coat layer"),
+		anno::in_group("Clearcoat"),
+		anno::soft_range(0.0, 4.0)
+	]],
+    float3 clearcoat_geometry_normal = state::normal() [[
+        anno::display_name("Clearcoat Normal"),
+        anno::in_group("Clearcoat"),
+        anno::usage("normal")
+    ]],
+
+
+	//  Geometry  //
+
+    uniform float round_edges_radius = float(0.0) [[
+        anno::display_name("Round Edge Radius"),
+        anno::description("Influence radius around the edges in meters"),
+        anno::in_group("Geometry"),
+        anno::soft_range(0.0, 1.0)
+    ]],
+    uniform float round_edges_roundness = float(1.0) [[
+        anno::display_name("Round Edge Roundness"),
+        anno::description("Determines how round the edge will look"),
+        anno::in_group("Geometry"),
+        anno::hard_range(0.0, 1.0)
+    ]],
+    uniform bool round_edges_across_materials = false [[
+        anno::display_name("Round Edge Across Materials"),
+        anno::description("Normal smoothing happens only between facets of equal material, \n"
+                          "\t\tunless this parameter is set true, in which case the smoothing \n"
+                          "\t\thappens between facets irrespective of their materials"),
+        anno::in_group("Geometry")
+    ]],
+    float3 geometry_normal = state::normal() [[
+        anno::display_name("Geometry Normal"),
+        anno::in_group("Geometry"),
+        anno::usage("normal")
+    ]]
+
+) 
+[[
+	anno::display_name("OmniPBR Base"),
+	anno::description("OmniPBR Base with support for clear coat, opacity and ORM textures."),
+ 	anno::in_group("Omni Materials"),
+	anno::version( 2, 1, 1),
+	anno::author("NVIDIA CORPORATION"), 
+	anno::key_words(string[]("omni", "PBR", "opacity", "omniverse", "generic"))
+]]
+ = let{
+
+    //  Diffuse Bsdf  //	
+    
+    color tinted_diffuse_color = diffuse_reflection_color * diffuse_tint;
+
+    color base_color = tinted_diffuse_color;
+
+    bsdf diffuse_bsdf = df::weighted_layer(
+		weight: 1.0,
+		layer:  df::diffuse_reflection_bsdf(
+			        tint:       base_color,
+			        roughness:  float(0.0)
+                ),
+		base:   bsdf(),
+		normal: geometry_normal
+	);
+
+	//  Glossy Reflection Bsdf  //
+
+	float roughness_u = math::clamp(specular_reflection_roughness * specular_reflection_roughness
+		+ specular_reflection_aniso_roughness.x * specular_reflection_aniso_roughness.x, 0, 1);
+	float roughness_v = math::clamp(specular_reflection_roughness * specular_reflection_roughness
+		+ specular_reflection_aniso_roughness.y * specular_reflection_aniso_roughness.y, 0, 1);
+	bsdf ggx_smith_bsdf = df::microfacet_ggx_smith_bsdf(
+		roughness_u:    roughness_u,
+		roughness_v:    roughness_v,
+		tint:           color(1.0),
+		mode:           df::scatter_reflect
+	);
+	
+	bsdf custom_curve_layer_bsdf = df::custom_curve_layer(
+		normal_reflectivity:  0.08,		
+		grazing_reflectivity: 1.0,
+		exponent:	          5.0,
+		weight:	              specular_level,
+		layer:                ggx_smith_bsdf,
+		base:	              diffuse_bsdf,
+		normal:               geometry_normal
+	);
+	
+	bsdf directional_factor_bsdf = df::tint(base_color, ggx_smith_bsdf);
+	
+	bsdf omni_PBR_bsdf = df::weighted_layer(
+        weight:     metalness,
+        layer:	    directional_factor_bsdf,
+		base:	    custom_curve_layer_bsdf,
+		normal:     geometry_normal
+	);
+	
+	//  Clear Coat  // 
+
+	float coat_roughness_u = math::clamp(coat_roughness * coat_roughness
+		+ coat_aniso_roughness.x * coat_aniso_roughness.x, 0, 1);
+	float coat_roughness_v = math::clamp(coat_roughness * coat_roughness
+		+ coat_aniso_roughness.y * coat_aniso_roughness.y, 0, 1);
+	bsdf coat_bsdf = df::microfacet_ggx_smith_bsdf(
+		roughness_u: coat_roughness_u,
+		roughness_v: coat_roughness_v,
+		tint:        color(1.0),
+		mode:        df::scatter_reflect
+	);
+	
+	bsdf opaque_coat = df::weighted_layer(
+        weight:     coat_transparency,
+		layer:	    ::df::tint( 
+					    tint: coat_color,
+					    base: omni_PBR_bsdf
+                    ),
+		base:	    ::df::diffuse_reflection_bsdf(
+					    tint: coat_color
+                    )
+	);
+	
+	bsdf omni_PBR_coated_bsdf = df::fresnel_layer(
+		ior:     coat_ior,
+		weight:  coat_weight,
+		layer:   coat_bsdf,
+		base:    opaque_coat,
+		normal:  clearcoat_geometry_normal 
+	);
+	
+    bsdf final_bsdf = enable_coat ? omni_PBR_coated_bsdf : omni_PBR_bsdf;
+                                    
+    color emission_value = enable_emission ? emission_color * color(emission_intensity) : color(0.0);
+	
+	float opacity_value = geometry_opacity;
+    float cutout_opacity = enable_opacity ? ((geometry_opacity_threshold == 0.0) ? opacity_value : ((opacity_value >= geometry_opacity_threshold) ? 1.0 : 0)) : 1.0;
+ 
+    material_emission emission = material_emission(
+                                    df::diffuse_edf(),
+                                    intensity: emission_value 
+                                    );
+
+    material_surface surface =  material_surface(
+		                            scattering: final_bsdf,
+		                            emission:   emission
+		                            );
+
+    material_geometry geometry = material_geometry(
+                                    normal: state::rounded_corner_normal(
+                                        radius: round_edges_radius,
+                                        across_materials: round_edges_across_materials,
+                                        roundness: round_edges_roundness
+                                    ),
+                                    cutout_opacity: cutout_opacity
+                                    );
+
+} in material(
+	surface: surface,
+	geometry: geometry
+);

saved/assets/_dependencies/public_validation/materials/OmniPBRBase_1.mdl

@@ -0,0 +1,461 @@
+/***************************************************************************************************
+ * Copyright 2022 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+mdl 1.7;
+
+import ::df::*;
+import ::state::*;
+import ::math::*;
+import ::base::*;
+import ::tex::*;
+import ::anno::*;
+import ::anno::*;
+
+export float3 HemiOctahedronToUnitVector( float2 Oct )
+{
+    Oct = float2( Oct.x + Oct.y, Oct.x - Oct.y ) * 0.5;
+    float3 N = float3( Oct.x, Oct.y, 1.0 - math::dot( float2(1.0), math::abs(Oct) ) );
+    return math::normalize(N);
+}
+
+export struct NormalData {
+	float3 normal;
+	float2 roughness;
+};
+
+export NormalData tangent_space_normal_roughness_texture(
+    uniform texture_2d texture
+        [[
+            anno::description("The input texture"),
+            anno::usage("normal")
+        ]],
+    uniform float factor = 1.0f
+        [[ anno::description("Determines the degree of bumpiness") ]],
+    uniform bool flip_tangent_u = false
+        [[ anno::description("Can be used to fix mismatches between the object's tangent space and the normal map's tangent space") ]],
+    uniform bool flip_tangent_v = false
+        [[ anno::description("Can be used to fix mismatches between the object's tangent space and the normal map's tangent space") ]],
+    base::texture_coordinate_info uvw = base::texture_coordinate_info()
+        [[ anno::description("Parameterization to be used for texture mapping. Defaults to texture channel 0.") ]],
+    uniform float2 crop_u = float2( 0.0, 1.0)
+        [[ anno::description("Restricts the texture access to sub-domain of the texture in the u direction") ]],
+    uniform float2 crop_v = float2( 0.0, 1.0)
+        [[ anno::description("Restricts the texture access to sub-domain of the texture in the v direction") ]],
+    uniform tex::wrap_mode wrap_u = tex::wrap_repeat
+        [[ anno::description("Wrapping mode in the u direction") ]],
+    uniform tex::wrap_mode wrap_v = tex::wrap_repeat
+        [[ anno::description("Wrapping mode in the v direction") ]],
+    uniform bool clip = false
+        [[
+            anno::description("deprecated, usewrap_mode=tex::wrap_clip. Defines wrap_clamp behavior. If true, lookup outside [0,1] results in no bump"),
+            anno::hidden()
+        ]],
+    uniform float scale = 1.
+        [[
+            anno::description("Scales the value red from the texture file. Can be used to adapt to different normal map formats"),
+            anno::unused()
+        ]],
+    uniform float offset = 0.
+        [[
+            anno::description("Offset applied to the value red from the texture file. Can be used to adapt to different normal map formats"),
+            anno::unused()
+        ]],
+    uniform float animation_start_time = 0.
+        [[ anno::description("When to start playing first frame of the animation ") ]],
+    uniform int2 animation_crop  = int2(0, 0)
+        [[ anno::description("If the texture is an animation, the range of frames to be played can be specified.") ]],
+    uniform tex::wrap_mode animation_wrap = tex::wrap_repeat
+        [[ anno::description("Defines what to do outside of regular animation time") ]],
+    uniform float animation_fps = 30
+        [[ anno::description("Framerate to use for animation playback") ]]
+)
+[[
+    anno::description("Interprets the color values of a bitmap as a vector in tangent space"),
+    anno::noinline()
+]]
+{
+	NormalData normalData;
+	normalData.roughness = float2(0);
+	normalData.normal = state::normal();
+
+    float frame = 0.0;
+    if(animation_crop != int2(0,0)) //only if we have an animation
+    {
+        frame = (::state::animation_time()-animation_start_time) * animation_fps ; //start playing at first frame of the animation
+        switch ( animation_wrap) {
+            case tex::wrap_repeat:
+                frame=frame>0?  math::fmod(frame,animation_crop.y-animation_crop.x)+animation_crop.x:
+                                math::fmod(frame,animation_crop.y-animation_crop.x)+animation_crop.y;
+                break;
+            case tex::wrap_mirrored_repeat:
+                float animation_crop_2y = 2.0*animation_crop.y;
+                frame=frame>0?  math::fmod(frame,(animation_crop.y-animation_crop.x)*2.0)+animation_crop.x:
+                                math::fmod(frame,(animation_crop.y-animation_crop.x)*2.0)+animation_crop_2y-animation_crop.x;
+                if(frame>animation_crop.y)
+                    frame = animation_crop_2y-frame;
+                break;
+            case tex::wrap_clamp:
+                frame = math::clamp( frame+animation_crop.x, animation_crop.x, animation_crop.y);
+                break;
+            case tex::wrap_clip:
+                frame += animation_crop.x;
+                if(frame < animation_crop.x || frame > animation_crop.y) return normalData;
+                break;
+        }
+    }
+
+    if (tex::width(texture) == 0 || tex::height(texture) == 0 || // avoid division by zero in texremapu for invalid resource
+        factor == 0.0f)
+        return normalData;
+    {
+        if (clip) {
+            if (wrap_u == tex::wrap_clamp && (uvw.position.x < 0. || uvw.position.x > 1.)) {
+                return normalData;
+            }
+            if (wrap_v == tex::wrap_clamp && (uvw.position.y < 0. || uvw.position.y > 1.)) {
+                return normalData;
+            }
+        }
+        if (wrap_u == tex::wrap_clip && (uvw.position.x < 0. || uvw.position.x > 1.)) {
+            return normalData;
+        }
+        if (wrap_v == tex::wrap_clip && (uvw.position.y < 0. || uvw.position.y > 1.)) {
+            return normalData;
+        }
+    }
+    bool pixel_flip_u = flip_tangent_u;
+    bool pixel_flip_v = flip_tangent_v;
+    //if we mirror repeat a tangent space texture, tangent space needs to be flipped for every other tile
+    if (wrap_u == tex::wrap_mirrored_repeat) {
+        if( uvw.position.x > 0. && int(uvw.position.x) % 2 == 1)
+            pixel_flip_u = ! pixel_flip_u;
+        else if( uvw.position.x < 0. && int(uvw.position.x) % 2 == 0)
+            pixel_flip_u = ! pixel_flip_u;
+    }
+    if (wrap_v == tex::wrap_mirrored_repeat) {
+        if( uvw.position.y > 0. && int(uvw.position.y) % 2 == 1)
+            pixel_flip_v = ! pixel_flip_v;
+        else if( uvw.position.y < 0. && int(uvw.position.y) % 2 == 0)
+            pixel_flip_v = ! pixel_flip_v;
+    }
+
+    float3 transformed_tangent_u = uvw.tangent_u;
+    float3 transformed_tangent_v = uvw.tangent_v;
+
+    if (pixel_flip_u)
+        transformed_tangent_u=-transformed_tangent_u;
+    if (pixel_flip_v)
+        transformed_tangent_v=-transformed_tangent_v;
+
+    float3 tangent_space_normal;
+	float4 normal_raw = tex::lookup_float4(texture,float2(uvw.position.x,uvw.position.y), wrap_u, wrap_v, crop_u, crop_v, frame);
+	if(normal_raw.x > 1.5)
+	{
+		// octahedron packed by OV
+		normal_raw.x -= 2.0;
+		normal_raw.x -= 0.5;
+		normal_raw.y -= 0.5;
+		tangent_space_normal = HemiOctahedronToUnitVector(float2(normal_raw.x, normal_raw.y) * 2.0);
+		normalData.roughness = float2(normal_raw.z, normal_raw.w);
+	}
+	else
+	{
+		// regular
+		tangent_space_normal = (float3(normal_raw.x, normal_raw.y, normal_raw.z) - float3(0.5)) * 2.0;
+		normalData.roughness = float2(0);
+	}
+
+	normalData.normal =  math::normalize(
+        transformed_tangent_u * tangent_space_normal.x * factor +
+        transformed_tangent_v * tangent_space_normal.y * factor +
+        state::normal() * tangent_space_normal.z);
+
+	return normalData;
+}
+
+
+export material OmniPBRBase(
+
+	
+    //  Albdeo  //
+
+	color diffuse_reflection_color = color(0.2) [[
+		anno::display_name("Albedo Color"),
+		anno::description("This is the albedo base color"),
+		anno::in_group("Albedo")
+	]],
+	color diffuse_tint = color(1.0) [[
+		anno::display_name("Albedo Tint"),
+		anno::description("When enabled, this color value is multiplied over the final albedo color"),
+		anno::in_group("Albedo")
+	]],
+
+	
+	//  Reflecitivity //
+	
+	float specular_reflection_roughness = float(0.0) [[
+		anno::display_name("Roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity")
+	]],
+	float2 specular_reflection_aniso_roughness = float2(0.0, 0.0) [[
+		anno::display_name("Aniso roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity"),
+		anno::hidden()
+	]],
+	float metalness = float(0.0) [[
+		anno::display_name("Metalness"),
+		anno::description("Bias towards pure specular reflection"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],	
+	float specular_level = float(0.5) [[
+		anno::display_name("Specular"),
+		anno::description("The specular level (intensity) of the material"),
+		anno::in_group("Reflectivity"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+
+
+	//  Emission  //
+	
+	uniform bool enable_emission = false [[
+        	anno::display_name("Enable Emission"),
+		anno::description("Enables the emission of light from the material"),
+		anno::in_group("Emissive")
+	]],
+	color emission_color = color(1.0,0.1,0.1) [[
+		anno::display_name("Emissive Color"),
+		anno::description("The emission color"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true")
+	]],
+	float emission_intensity = float(40.0) [[
+		anno::display_name("Emissive Intensity"),    
+		anno::description("Intensity of the emission"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true")
+	]],
+
+	
+    //  Geometry Opacity  //
+	
+    uniform bool enable_opacity = false [[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+	float geometry_opacity = float(1.0) [[
+		anno::display_name("Opacity Amount"),    
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform float geometry_opacity_threshold = 0.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Threshold"),
+		anno::description("If 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity")
+	]],
+
+	
+	//  Clearcoat // 
+	
+    uniform bool enable_coat = false [[
+		anno::display_name("Enable Clearcoat Layer"),
+		anno::description("Adds a coat layer on top of the material when enabled"),
+		anno::in_group("Clearcoat")
+	]],
+	float coat_weight = float(1.0) [[
+		anno::display_name("Clearcoat Weight"),
+		anno::description("Sets the weight for coat layer"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	color coat_color = color(1.0) [[
+		anno::display_name("Clearcoat Tint"),
+		anno::description("Clearcoat is tinted and affects the underlying material"),
+		anno::in_group("Clearcoat")
+	]],
+	float coat_transparency = float(1.0) [[
+		anno::display_name("Clearcoat Transparency"),
+		anno::description("Adjusts the transparency of the coat. Can be turned into a fully opaque coat covering the underlying layer"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	float coat_roughness = float(0.0) [[
+		anno::display_name("Clearcoat Roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Clearcoat")
+	]],
+	float2 coat_aniso_roughness = float2(0.0, 0.0) [[
+		anno::display_name("Clearcoat aniso roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Clearcoat"),
+		anno::hidden()
+	]],
+	float coat_ior = float(1.56) [[
+		anno::display_name("Clearcoat IOR"),
+		anno::description("Sets the Index of refraction for the coat layer"),
+		anno::in_group("Clearcoat"),
+		anno::soft_range(float(0.0), float(4.0))
+	]],
+    float3 clearcoat_geometry_normal = state::normal() [[
+        anno::display_name("Clearcoat Normal"),
+        anno::in_group("Clearcoat"),
+        anno::usage("normal")
+    ]],
+
+
+	//  Geometry  //
+
+    float3 geometry_normal = state::normal() [[
+        anno::display_name("Geometry Normal"),
+        anno::in_group("Geometry"),
+        anno::usage("normal")
+    ]]
+
+) 
+[[
+	anno::display_name("OmniPBR Base"),
+	anno::description("OmniPBR Base with support for clear coat, opacity and ORM textures."),
+ 	anno::in_group("Base"),
+	anno::version( 2, 1, 1),
+	anno::author("NVIDIA CORPORATION"), 
+	anno::key_words(string[]("omni", "PBR", "opacity", "omniverse", "generic"))
+]]
+ = let{
+
+    //  Diffuse Bsdf  //	
+    
+    color tinted_diffuse_color = diffuse_reflection_color * diffuse_tint;
+
+    color base_color = tinted_diffuse_color;
+
+    bsdf diffuse_bsdf = df::weighted_layer(
+		weight: 1.0,
+		layer:  df::diffuse_reflection_bsdf(
+			        tint:       base_color,
+			        roughness:  float(0.0)
+                ),
+		base:   bsdf(),
+		normal: enable_coat ? geometry_normal : state::normal()
+	);
+
+	//  Glossy Reflection Bsdf  //
+
+	float roughness_u = math::clamp(specular_reflection_roughness * specular_reflection_roughness
+		+ specular_reflection_aniso_roughness.x * specular_reflection_aniso_roughness.x, 0, 1);
+	float roughness_v = math::clamp(specular_reflection_roughness * specular_reflection_roughness
+		+ specular_reflection_aniso_roughness.y * specular_reflection_aniso_roughness.y, 0, 1);
+	bsdf ggx_smith_bsdf = df::microfacet_ggx_smith_bsdf(
+		roughness_u:    roughness_u,
+		roughness_v:    roughness_v,
+		tint:           color(1.0),
+		mode:           df::scatter_reflect
+	);
+	
+	bsdf custom_curve_layer_bsdf = df::custom_curve_layer(
+		normal_reflectivity:  0.08,		
+		grazing_reflectivity: 1.0,
+		exponent:	          5.0,
+		weight:	              specular_level,
+		layer:                ggx_smith_bsdf,
+		base:	              diffuse_bsdf,
+		normal:               enable_coat ? geometry_normal : state::normal()
+	);
+	
+	bsdf directional_factor_bsdf = df::tint(base_color, ggx_smith_bsdf);
+	
+	bsdf omni_PBR_bsdf = df::weighted_layer(
+        weight:     metalness,
+        layer:	    directional_factor_bsdf,
+		base:	    custom_curve_layer_bsdf,
+		normal:     enable_coat ? geometry_normal : state::normal() 
+	);
+	
+	//  Clear Coat  // 
+
+	float coat_roughness_u = math::clamp(coat_roughness * coat_roughness
+		+ coat_aniso_roughness.x * coat_aniso_roughness.x, 0, 1);
+	float coat_roughness_v = math::clamp(coat_roughness * coat_roughness
+		+ coat_aniso_roughness.y * coat_aniso_roughness.y, 0, 1);
+	bsdf coat_bsdf = df::microfacet_ggx_smith_bsdf(
+		roughness_u: coat_roughness_u,
+		roughness_v: coat_roughness_v,
+		tint:        color(1.0),
+		mode:        df::scatter_reflect
+	);
+	
+	bsdf opaque_coat = df::weighted_layer(
+        weight:     coat_transparency,
+		layer:	    ::df::tint( 
+					    tint: coat_color,
+					    base: omni_PBR_bsdf
+                    ),
+		base:	    ::df::diffuse_reflection_bsdf(
+					    tint: coat_color
+                    )
+	);
+	
+	bsdf omni_PBR_coated_bsdf = df::fresnel_layer(
+		ior:     coat_ior,
+		weight:  coat_weight,
+		layer:   coat_bsdf,
+		base:    opaque_coat,
+		normal:  clearcoat_geometry_normal 
+	);
+	
+    bsdf final_bsdf = enable_coat ? omni_PBR_coated_bsdf : omni_PBR_bsdf;
+                                    
+    color emission_value = enable_emission ? emission_color * color(emission_intensity) : color(0.0);
+	
+	float opacity_value = geometry_opacity;
+    float cutout_opacity = enable_opacity ? ((geometry_opacity_threshold == 0.0) ? opacity_value : ((opacity_value >= geometry_opacity_threshold) ? 1.0 : 0)) : 1.0;
+ 
+    material_emission emission = material_emission(
+                                    df::diffuse_edf(),
+                                    intensity: emission_value 
+                                    );
+
+    material_surface surface =  material_surface(
+		                            scattering: final_bsdf,
+		                            emission:   emission
+		                            );
+
+    material_geometry geometry = material_geometry(
+                                    normal: enable_coat ? state::normal(): geometry_normal,
+                                    cutout_opacity: cutout_opacity
+                                    );
+
+} in material(
+	surface: surface,
+	geometry: geometry
+);

saved/assets/_dependencies/public_validation/materials/OmniPBR_ClearCoat.mdl

@@ -0,0 +1,707 @@
+/***************************************************************************************************
+ * Copyright 2022 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+mdl 1.7;
+
+import ::df::*;
+import ::state::*;
+import ::math::*;
+import ::base::*;
+import ::state::*;
+import ::tex::*;
+import ::anno::*;
+
+import ::debug::*;
+
+import ::nvidia::core_definitions::file_texture;
+import ::nvidia::core_definitions::normalmap_texture;
+
+import OmniPBRBase_1::*;
+
+//  Functions  //
+
+
+//  Returns a matrix from R,T,S. inputs //
+
+uniform float4x4 rotation_translation_scale(
+    uniform float3 rotation = float3(0.)
+        [[ anno::description("Rotation applied to every UVW coordinate") ]],
+    uniform float3 translation = float3(0.)
+        [[ anno::description("Offset applied to every UVW coordinate") ]],
+    uniform float3 scaling = float3(1.)
+        [[ anno::description("Scale applied to every UVW coordinate") ]]
+)
+[[
+    anno::description("Construct a transformation matrix from euler rotation, translation and scale"),
+    anno::hidden()
+]]
+{
+    float4x4 scale =
+        float4x4(scaling.x         , 0.0               , 0.0               , 0.0,
+                 0.0               , scaling.y         , 0.0               , 0.0,
+                 0.0               , 0.0               , scaling.z         , 0.0,
+                 translation.x     , translation.y     , translation.z     , 1.0);
+
+    float3 s = math::sin(rotation);
+    float3 c = math::cos(rotation);
+    
+    float4x4 rotate =
+        float4x4(  c.y*c.z    , -c.x*s.z + s.x*s.y*c.z ,  s.x*s.z + c.x*s.y*c.z , 0.0,
+                   c.y*s.z    ,  c.x*c.z + s.x*s.y*s.z , -s.x*c.z + c.x*s.y*s.z , 0.0,
+                  -s.y        ,  s.x*c.y               ,  c.x*c.y               , 0.0,
+                   0.0        ,  0.0                   ,  0                     , 1.0);
+
+    return   scale * rotate;
+}
+
+//  Returns the normal n in tangent space, given n is in internal space. //
+
+float3 transform_internal_to_tangent(float3 n)
+{
+	/* flip_tangent_v */
+    return
+        n.x* float3(state::texture_tangent_u(0).x,-state::texture_tangent_v(0).x,state::normal().x)+
+        n.y* float3(state::texture_tangent_u(0).y,-state::texture_tangent_v(0).y,state::normal().y)+
+        n.z* float3(state::texture_tangent_u(0).z,-state::texture_tangent_v(0).z,state::normal().z);
+}
+
+//  Returns the normal n in internal space, given n is in tangent space.
+float3 transform_tangent_to_internal(float3 n)
+{
+    return  state::texture_tangent_u(0) * n.x -
+            state::texture_tangent_v(0) * n.y + /* flip_tangent_v */
+            state::normal() * n.z;
+}
+
+//  Returns a normal by adding a detail normal to a global normal.
+export float3 add_detail_normal(float3 nd = state::normal(), float3 n = state::normal())
+{
+    // http://blog.selfshadow.com/publications/blending-in-detail/
+    float3  n_t = transform_internal_to_tangent(n);
+    float3 nd_t = transform_internal_to_tangent(nd);
+            n_t = n_t + float3(0.,0.,1.);
+           nd_t = nd_t *  float3(-1.,-1.,1.);
+              n = n_t * math::dot(n_t, nd_t)/n_t.z - nd_t;
+    return math::normalize(transform_tangent_to_internal(n));
+}
+
+base::texture_return multiply_colors(
+    color color_1 = color(1.0, 1.0, 1.0),
+    color color_2 = color(.5, .5, .5),
+	float weight  = 1.0
+    ) 
+[[ 
+    anno::hidden() 
+]]
+{
+    return base::blend_color_layers(
+                layers: base::color_layer[](
+                    base::color_layer(
+                        layer_color:    color_2,
+                        weight:         weight,
+                        mode:           base::color_layer_multiply
+                        )),
+                base: color_1
+            );
+}
+
+
+//  OmniPBR Clearcoat  //
+
+export material OmniPBR_ClearCoat(
+
+    //  Albdeo  //
+
+	color diffuse_color_constant = color(0.2) [[
+		anno::display_name("Albedo Color"),
+		anno::description("This is the albedo base color"),
+		anno::in_group("Albedo")
+	]],
+	uniform texture_2d diffuse_texture = texture_2d() [[
+		anno::display_name("Albedo Map"),
+		anno::in_group("Albedo")
+	]],
+	float albedo_desaturation = float(0.0) [[
+		anno::display_name("Albedo Desaturation"),
+		anno::description("Desaturates the diffuse color"),
+		anno::in_group("Albedo"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	float albedo_add = float(0.0) [[
+		anno::display_name("Albedo Add"),
+		anno::description("Adds a constant value to the diffuse color "),
+		anno::in_group("Albedo"),
+		anno::soft_range(float(-1.0), float(1.0))
+	]],	
+	float albedo_brightness = float(1.0) [[
+		anno::display_name("Albedo Brightness"),
+		anno::description("Multiplier for the diffuse color "),
+		anno::in_group("Albedo"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],	
+	color diffuse_tint = color(1.0) [[
+		anno::display_name("Color Tint"),
+		anno::description("When enabled, this color value is multiplied over the final albedo color"),
+		anno::in_group("Albedo")
+	]],
+	
+
+	//  Reflectivity //
+	
+	float reflection_roughness_constant  = float(0.5) [[
+		anno::display_name("Roughness Amount"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	float reflection_roughness_texture_influence = float(0.0) [[
+		anno::display_name("Roughness Map Influence"),
+		anno::description("Blends between the constant value and the lookup of the roughness texture"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d reflectionroughness_texture = texture_2d() [[
+		anno::display_name("Roughness Map"),
+		anno::in_group("Reflectivity"),
+		anno::usage("roughness")
+	]],
+	float metallic_constant = float(0.0) [[
+		anno::display_name("Metallic Amount"),
+		anno::description("Metallic Material"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],	
+	float metallic_texture_influence = float(0.0) [[
+		anno::display_name("Metallic Map Influence"),
+		anno::description("Blends between the constant value and the lookup of the metallic texture"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d metallic_texture = texture_2d() [[
+		anno::display_name("Metallic Map"),
+		anno::in_group("Reflectivity"),
+		anno::usage("metalness")
+	]], 
+	float specular_level = float(0.5) [[
+		anno::display_name("Specular"),
+		anno::description("The specular level (intensity) of the material"),
+		anno::in_group("Reflectivity"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	
+
+	//  ORM  //
+ 
+	uniform bool enable_ORM_texture = false [[
+		anno::display_name("Enable ORM Texture"),
+		anno::description("The ORM texture will be used to extract the Occlusion, Roughness and Metallic textures from R,G,B channels"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d ORM_texture = texture_2d() [[
+		anno::display_name("ORM Map"),
+		anno::description("Texture that has Occlusion, Roughness and Metallic maps stored in their respective R, G and B channels"),
+		anno::in_group("Reflectivity"),
+		anno::usage("roughness")
+	]],
+
+
+	//  AO Group  // 
+
+	float ao_to_diffuse = 0.0 [[
+		anno::display_name("AO to diffuse"),
+		anno::description("Controls the amount of ambient occlusion multiplied against the diffuse color channel"),
+		anno::in_group("AO"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d ao_texture = texture_2d() [[
+		anno::display_name("Ambient Occlusion Map"),
+		anno::description("The ambient occlusion texture for the material"),
+		anno::in_group("AO"),
+		anno::usage("occlusion")
+	]],
+	
+	
+	//  Emission //  
+
+	uniform bool enable_emission = false [[
+        anno::display_name("Enable Emission"),
+		anno::description("Enables the emission of light from the material"),
+		anno::in_group("Emissive")
+	]],
+	color emissive_color = color(1.0,0.1,0.1) [[
+		anno::display_name("Emissive Color"),
+		anno::description("The emission color"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true")
+	]],
+    	uniform texture_2d emissive_color_texture = texture_2d() [[ 
+		anno::display_name("Emissive Color map"),
+        anno::in_group("Emissive"),
+		anno::description("The emissive color texture"),
+        anno::enable_if("enable_emission == true")
+    	]],	
+	uniform texture_2d emissive_mask_texture = texture_2d() [[
+		anno::display_name("Emissive Mask map"),
+		anno::description("The texture masking the emissive color"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true"),
+		anno::usage("occlusion")
+	]],
+	float emissive_intensity = float(40.0) [[
+		anno::display_name("Emissive Intensity"),    
+		anno::description("Intensity of the emission"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true")
+	]],	
+
+
+    //  Cutout Opacity  //
+	
+    uniform bool enable_opacity = false [[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+ 	uniform texture_2d opacity_texture = texture_2d() [[
+		anno::display_name("Opacity Map"),
+		anno::in_group("Opacity"),
+		anno::usage("opacity")
+	]],
+	float opacity_constant = float(1.0) [[
+		anno::display_name("Opacity Amount"),    
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform bool enable_opacity_texture = false [[
+		anno::display_name("Enable Opacity Texture"),
+		anno::description("Enables or disables the usage of the opacity texture map"),
+		anno::in_group("Opacity")
+	]],
+	uniform base::mono_mode opacity_mode = base::mono_average [[
+		anno::display_name("Opacity Mono Source"),
+		anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum"),
+		anno::in_group("Opacity")
+	]],
+	uniform float opacity_threshold = float(0.0) [[
+		anno::display_name("Opacity Threshold"),
+		anno::description("If 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+
+
+	//  Clearcoat // 
+	
+	uniform bool enable_clearcoat = false [[
+		anno::display_name("Enable Clearcoat Layer"),
+		anno::description("Adds a clearcoat layer on top of the material when enabled"),
+		anno::in_group("Clearcoat")
+	]],
+	float clearcoat_weight = float(1.0) [[
+		anno::display_name("Clearcoat Weight"),
+		anno::description("Sets the weight for clearcoat layer"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	color clearcoat_tint = color(1.0) [[
+		anno::display_name("Clearcoat Tint"),
+		anno::description("Clearcoat is tinted and affects the underlying material"),
+		anno::in_group("Clearcoat")
+	]],
+	float clearcoat_transparency = float(1.0) [[
+		anno::display_name("Clearcoat Transparency"),
+		anno::description("Adjusts the transparency of the clearcoat. Can be turned into a fully opaque clearcoat covering the underlying layer"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	float clearcoat_reflection_roughness = float(0.0) [[
+		anno::display_name("Clearcoat Roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	float clearcoat_ior = float(1.56) [[
+		anno::display_name("Clearcoat IOR"),
+		anno::description("Sets the Index of refraction for the clearcoat layer"),
+		anno::in_group("Clearcoat"),
+		anno::soft_range(float(0.0), float(4.0))
+	]],
+	uniform float clearcoat_bump_factor = float(1.0) [[
+		anno::display_name("Clearcoat Normal Map Strength"),
+		anno::description("Strength of normal map."),
+		anno::in_group("Clearcoat"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d clearcoat_normalmap_texture = texture_2d() [[
+		anno::display_name("Clearcoat Normal Map"),
+		anno::description("Enables the usage of the normalmap texture"),
+		anno::in_group("Clearcoat"),
+		anno::usage("normal")
+	]], 	
+	uniform float2 clearcoat_texture_translate =  float2(0.0) [[
+		anno::display_name("Clearcoat Texture Translate"),
+		anno::description("Controls the position of the clearcoat texture"),
+		anno::ui_order(1),
+		anno::in_group("UV")
+	]],
+	uniform float clearcoat_texture_rotate = float(0.0) [[
+		anno::display_name("Clearcoat Texture Rotate"),
+		anno::description("Rotates angle of the clearcoat texture in degrees"),
+		anno::ui_order(2),
+		anno::in_group("UV")
+	]],
+	uniform float2 clearcoat_texture_scale = float2(1.0) [[
+		anno::display_name("Clearcoat Texture Tiling"),
+		anno::description("Controls the repetition of the clearcoat texture"),
+		anno::ui_order(3),
+		anno::in_group("UV")
+	]],
+	float clearcoat_flatten = float(1.0) [[
+		anno::display_name("Clearcoat Flatten"),
+		anno::description("Flattens the clearcoat to even out the underlying bump maps"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+
+
+	//  Normal  // 
+	
+	uniform float geometry_normal_roughness_strength = 1.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Normal map to roughness weight"),
+		anno::description("Enables and weights roughness induced by normal maps"),
+		anno::in_group("Normal")
+	]],
+	uniform float bump_factor = float(1.0) [[
+		anno::display_name("Normal Strength"),
+		anno::description("Strength of normal map"),
+		anno::in_group("Normal"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d normalmap_texture = texture_2d() [[
+		anno::display_name("Normal Map"),
+		anno::in_group("Normal"),
+		anno::usage("normal")
+	]], 
+	uniform float detail_bump_factor = float(0.3) [[
+		anno::display_name("Detail Normal Strength"),
+		anno::in_group("Normal"),
+		anno::description("Strength of the detail normal"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d detail_normalmap_texture = texture_2d() [[
+		anno::display_name("Detail Normal Map"),
+		anno::in_group("Normal"),
+		anno::usage("normal")
+	]],
+	uniform bool flip_tangent_u = false [[
+        	anno::display_name("Normal Map Flip U Tangent"),
+        	anno::in_group("Normal")
+    ]],
+	uniform bool flip_tangent_v = true [[
+        	anno::display_name("Normal Map Flip V Tangent"),
+        	anno::in_group("Normal")
+    ]],
+
+
+	//  UVW Projection Group  //
+
+	uniform bool project_uvw = false [[
+		anno::display_name("Enable Project UVW Coordinates"),
+		anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+		anno::in_group("UV")
+	]],
+	uniform bool world_or_object = false [[
+		anno::display_name("Enable World Space"),
+		anno::description("When enabled, uses world space for projection, otherwise object space is used"),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform int uv_space_index =  0 [[
+		anno::display_name("UV Space Index"),
+		anno::description("UV Space Index"),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true"),
+		anno::hard_range(int(0), int(3))
+	]],
+	
+	//  UVW Adjustments Group  //
+
+	uniform float2 texture_translate = float2(0.0) [[
+		anno::display_name("Texture Translate"),
+		anno::description("Controls position of texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float texture_rotate = float(0.0) [[
+		anno::display_name("Texture Rotate"),
+		anno::description("Rotates angle of texture in degrees."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float2 texture_scale = float2(1.0) [[
+		anno::display_name("Texture Tiling"),
+		anno::description("Controls repetition of the texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float2 detail_texture_translate = float2(0.0) [[
+		anno::display_name("Detail Texture Translate"),
+		anno::description("Controls the position of the detail texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float detail_texture_rotate = float(0.0) [[
+		anno::display_name("Detail Texture Rotate"),
+		anno::description("Rotates angle of the detail texture in degrees."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float2 detail_texture_scale = float2(1.0) [[
+		anno::display_name("Detail Texture Tiling"),
+		anno::description("Controls repetition of the detail texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]]
+) 
+[[
+	anno::display_name("OmniPBR ClearCoat "),
+	anno::description("OmniPBR Base with support for clear coat, opacity and ORM textures."),
+	anno::in_group("Base"),
+	anno::version( 2, 1, 1),
+	anno::author("NVIDIA CORPORATION"), 
+	anno::key_words(string[]("omni", "PBR", "opacity", "clearcoat", "omniverse", "generic"))
+]] = let {
+
+	//  UVW lookup and transformation  //
+	base::texture_coordinate_system the_system = world_or_object ? base::texture_coordinate_world : base::texture_coordinate_object;
+	
+	base::texture_coordinate_info uvw = project_uvw ?  base::coordinate_projection(
+								coordinate_system: the_system,
+								    texture_space: uv_space_index,
+								  projection_type: base::projection_cubic 
+							    ) :
+							    base::coordinate_source(
+								coordinate_system: base::texture_coordinate_uvw,
+								    texture_space: uv_space_index 
+							    );							
+	
+	base::texture_coordinate_info transformed_uvw = base::transform_coordinate(
+								  			transform: rotation_translation_scale(
+						                      scaling: float3(texture_scale.x, texture_scale.y, 1.0),
+								   			 rotation: float3(0.0, 0.0, texture_rotate/180.*math::PI ),
+							        	  translation: float3(texture_translate.x, texture_translate.y, 0.0)
+							        ),
+							        coordinate: uvw
+								);
+	
+	base::texture_coordinate_info detail_transformed_uvw = base::transform_coordinate(
+							       		  transform: rotation_translation_scale(
+								  	    	scaling: float3(detail_texture_scale.x, detail_texture_scale.y, 1.0),
+								           rotation: float3(0.0, 0.0, detail_texture_rotate/180.*math::PI ),
+								        translation: float3(detail_texture_translate.x, detail_texture_translate.y, 0.0)
+								        ),
+								        coordinate: uvw
+									);
+
+	base::texture_coordinate_info clearcoat_transformed_uvw =   base::transform_coordinate(
+									  	  transform: rotation_translation_scale(
+								            scaling: float3(clearcoat_texture_scale.x, clearcoat_texture_scale.y, 1.0),
+								           rotation: float3(0.0, 0.0, clearcoat_texture_rotate/180.*math::PI ),
+								        translation: float3(clearcoat_texture_translate.x, clearcoat_texture_translate.y, 0.f)
+									),
+									coordinate: uvw
+									);	
+
+	//  Normal calculations  //
+	OmniPBRBase_1::NormalData defaultData = OmniPBRBase_1::NormalData(state::normal(), float2(0));
+
+	OmniPBRBase_1::NormalData normal_data = tex::texture_isvalid(normalmap_texture) ?
+		OmniPBRBase_1::tangent_space_normal_roughness_texture(
+							texture:        normalmap_texture,
+							factor:         bump_factor,
+							uvw:            transformed_uvw,
+							flip_tangent_u: flip_tangent_u,
+							flip_tangent_v: flip_tangent_v	// true for dx, false for opengl
+							//flip_tangent_v: true
+
+		) : defaultData;
+	float3 the_normal = normal_data.normal;
+
+	OmniPBRBase_1::NormalData detail_normal_data = tex::texture_isvalid(detail_normalmap_texture) ?
+		OmniPBRBase_1::tangent_space_normal_roughness_texture(
+							texture:        detail_normalmap_texture,
+							factor:         detail_bump_factor,
+							uvw:            detail_transformed_uvw,
+							flip_tangent_u: flip_tangent_u,
+							flip_tangent_v: flip_tangent_v	// true for dx, false for opengl
+							) : defaultData;
+	float3 detail_normal = detail_normal_data.normal;
+
+	OmniPBRBase_1::NormalData clearcoat_normal_data = tex::texture_isvalid(clearcoat_normalmap_texture) ?
+		OmniPBRBase_1::tangent_space_normal_roughness_texture(
+								texture:        clearcoat_normalmap_texture,
+								factor:         clearcoat_bump_factor,
+								uvw:            clearcoat_transformed_uvw,
+								flip_tangent_u: flip_tangent_u,
+								flip_tangent_v: flip_tangent_v	// true for dx, false for opengl
+							) : defaultData;
+	float3 clearcoat_normal = clearcoat_normal_data.normal;
+
+
+	float3 diffuse_gloss_normal	        = tex::texture_isvalid(detail_normalmap_texture) ?  add_detail_normal(detail_normal, the_normal) : the_normal;
+	float3 flattened_clearcoat_normal   = ::math::lerp(diffuse_gloss_normal, ::state::normal(), clearcoat_flatten);
+	float3 final_clearcoat_normal       = tex::texture_isvalid(clearcoat_normalmap_texture) ? add_detail_normal(flattened_clearcoat_normal, clearcoat_normal)
+                                                                                            : flattened_clearcoat_normal;
+
+
+	//  ORM Handling  // 
+
+	float3 ORM_lookup = tex::lookup_float3( 
+                              tex: ORM_texture, 
+                            coord: float2(transformed_uvw.position.x, transformed_uvw.position.y)
+                            );
+
+	 
+	float3 roughness_lookup = tex::lookup_float3(
+					  tex: reflectionroughness_texture,
+					coord: float2(transformed_uvw.position.x, transformed_uvw.position.y)		
+					);
+	
+	float roughness_selection    = enable_ORM_texture ? ORM_lookup.y : roughness_lookup.x;
+	float reflection_roughness_s   = math::lerp(reflection_roughness_constant, roughness_selection, reflection_roughness_texture_influence);
+	float2 reflection_roughness = float2(math::sqrt(reflection_roughness_s*reflection_roughness_s + (geometry_normal_roughness_strength * normal_data.roughness.x * normal_data.roughness.x)),
+	                                     math::sqrt(reflection_roughness_s*reflection_roughness_s + (geometry_normal_roughness_strength * normal_data.roughness.y * normal_data.roughness.y)));
+
+	float2 clearcoat_reflection_roughness2 = float2(math::sqrt(clearcoat_reflection_roughness*clearcoat_reflection_roughness + (geometry_normal_roughness_strength * clearcoat_normal_data.roughness.x * clearcoat_normal_data.roughness.x)),
+												    math::sqrt(clearcoat_reflection_roughness*clearcoat_reflection_roughness + (geometry_normal_roughness_strength * clearcoat_normal_data.roughness.y * clearcoat_normal_data.roughness.y)));
+
+	//  Diffuse Color Lookup and AO  //
+	
+	base::texture_return base_lookup = base::file_texture(
+						      	  texture: diffuse_texture,
+					    	 color_offset: color(albedo_add),
+					          color_scale: color(albedo_brightness),
+					          mono_source: base::mono_luminance,
+					                  uvw: transformed_uvw,
+					                 clip: false		
+						);
+	
+	base::texture_return ao_lookup = base::file_texture(
+					 	      	  texture: ao_texture,
+					       	 color_offset: color(0.0, 0.0, 0.0),
+					          color_scale: color(1.0, 1.0, 1.0),
+					          mono_source: base::mono_average,
+					                  uvw: transformed_uvw,
+					       	         clip: false		
+						);
+
+
+	color ao_color          = enable_ORM_texture ? color(ORM_lookup.x) : ao_lookup.tint;
+	color desaturated_base  = math::lerp(base_lookup.tint, color(base_lookup.mono), albedo_desaturation);
+	color diffuse           = tex::texture_isvalid(diffuse_texture)? desaturated_base : diffuse_color_constant;
+	color tinted_diffuse    = multiply_colors(diffuse, diffuse_tint, 1.0).tint;
+	
+	color base_color = multiply_colors(
+			   	color_1: tinted_diffuse,
+				color_2: ao_color,
+				 weight: ao_to_diffuse
+				).tint;
+
+	
+	//  Metalness   //
+
+    	float3 metallic_lookup = tex::lookup_float3(
+				    tex: metallic_texture,
+				  coord: float2(transformed_uvw.position.x, transformed_uvw.position.y)
+				  );
+					
+	float metallic_selection = enable_ORM_texture ? ORM_lookup.z : metallic_lookup.x;
+	float metallic = math::lerp(metallic_constant, metallic_selection, metallic_texture_influence);
+
+
+	//  Emission   //
+
+	color emission_color_texture = tex::texture_isvalid(emissive_color_texture) ?
+                                        base::file_texture(
+												texture: emissive_color_texture,
+                                           color_offset: color(0.0, 0.0, 0.0),
+                                            color_scale: color(1.0, 1.0, 1.0),
+                                            mono_source: base::mono_average,
+						    						uvw: transformed_uvw,
+						   						   clip: false        
+                                            ).tint : emissive_color;
+
+    color emission_mask_texture = tex::texture_isvalid(emissive_mask_texture) ?
+                                        base::file_texture(
+												texture: emissive_mask_texture,
+                                           color_offset: color(0.0, 0.0, 0.0),
+                                            color_scale: color(1.0, 1.0, 1.0),
+                                            mono_source: base::mono_average,
+						    						uvw: transformed_uvw,
+						   						   clip: false        
+                                            ).tint : color(1.0);
+  
+    color final_emission_color = enable_emission ? emission_color_texture * emission_mask_texture: color(0.0);
+
+    //  Opacity   //
+	
+    float opacity_value = enable_opacity_texture ? base::file_texture(
+						    texture: opacity_texture,
+						mono_source: opacity_mode,
+								uvw: transformed_uvw
+						).mono : opacity_constant;
+
+    float cutout_opacity = enable_opacity ? ((opacity_threshold == 0.0) ? opacity_value : ((opacity_value >= opacity_threshold) ? 1.0 : 0)) : 1.0;
+
+material base = OmniPBRBase_1::OmniPBRBase(
+    diffuse_reflection_color: base_color, 
+    specular_reflection_aniso_roughness: reflection_roughness, 
+    specular_level: specular_level,
+    metalness: metallic,
+    enable_emission: enable_emission,
+    emission_color: final_emission_color,
+    emission_intensity: emissive_intensity,
+    enable_coat: enable_clearcoat,
+    coat_weight: clearcoat_weight,
+    coat_color: clearcoat_tint,
+    coat_transparency: clearcoat_transparency,
+    coat_aniso_roughness: clearcoat_reflection_roughness2,
+    coat_ior: clearcoat_ior,
+    enable_opacity: enable_opacity,
+    geometry_opacity: cutout_opacity,
+    clearcoat_geometry_normal: final_clearcoat_normal,
+    geometry_normal: diffuse_gloss_normal
+    );
+
+} in material(
+surface:  base.surface,
+geometry: base.geometry
+);

saved/assets/_dependencies/public_validation/materials/OmniPBR_ClearCoat_Opacity.mdl

@@ -0,0 +1,884 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+
+mdl 1.7;
+import ::df::*;
+import ::state::*;
+import ::math::*;
+import ::base::*;
+import ::tex::*;
+import ::anno::*;
+
+import ::nvidia::core_definitions::file_texture;
+import ::nvidia::core_definitions::normalmap_texture;
+
+import OmniPBRBase_1::*;
+
+
+uniform float4x4 rotation_translation_scale(
+    uniform float3 rotation = float3(0.)
+        [[ anno::description("Rotation applied to every UVW coordinate") ]],
+    uniform float3 translation = float3(0.)
+        [[ anno::description("Offset applied to every UVW coordinate") ]],
+    uniform float3 scaling = float3(1.)
+        [[ anno::description("Scale applied to every UVW coordinate") ]]
+)
+[[
+    anno::description("Construct transformation matrix from Euler rotation, translation and scale"),
+    anno::hidden()
+]]
+{
+    float4x4 scale =
+        float4x4(scaling.x        , 0.               , 0.               , 0.,
+                 0.               , scaling.y        , 0.               , 0.,
+                 0.               , 0.               , scaling.z        , 0.,
+                 translation.x, translation.y, translation.z, 1.);
+
+    float3 s = math::sin(rotation);
+    float3 c = math::cos(rotation);
+    float4x4 rotate =
+        float4x4(  c.y*c.z ,  -c.x*s.z + s.x*s.y*c.z ,  s.x*s.z + c.x*s.y*c.z , 0.0,
+                   c.y*s.z ,   c.x*c.z + s.x*s.y*s.z , -s.x*c.z + c.x*s.y*s.z , 0.0,
+                  -s.y     ,   s.x*c.y               ,  c.x*c.y               , 0.0,
+                   0.     ,   0                   ,  0                   , 1.);
+
+    return   scale*rotate;
+}
+
+// Returns the normal n in tangent space, given n is in internal space.
+float3 transform_internal_to_tangent(float3 n)
+{
+	/* flip_tangent_v */
+    return
+        n.x* float3(state::texture_tangent_u(0).x,-state::texture_tangent_v(0).x,state::normal().x)+
+        n.y* float3(state::texture_tangent_u(0).y,-state::texture_tangent_v(0).y,state::normal().y)+
+        n.z* float3(state::texture_tangent_u(0).z,-state::texture_tangent_v(0).z,state::normal().z);
+}
+
+// Returns the normal n in internal space, given n is in tangent space.
+float3 transform_tangent_to_internal(float3 n)
+{
+    return  state::texture_tangent_u(0) * n.x -
+            state::texture_tangent_v(0) * n.y + /* flip_tangent_v */
+            state::normal() * n.z ;
+}
+
+// Returns a normal by adding a detail normal to a global normal.
+export float3 add_detail_normal(float3 nd = state::normal(), float3 n = state::normal())
+{
+    // http://blog.selfshadow.com/publications/blending-in-detail/
+    float3 n_t = transform_internal_to_tangent(n);
+    float3 nd_t = transform_internal_to_tangent(nd);
+
+    n_t=n_t + float3(0.,0.,1.);
+    nd_t = nd_t *  float3(-1.,-1.,1.);
+
+    n = n_t*math::dot(n_t, nd_t)/n_t.z - nd_t;
+    return math::normalize(transform_tangent_to_internal(n));
+}
+
+
+base::texture_return multiply_colors(
+    color color_1 = color(1.0, 1.0, 1.0),
+    color color_2 = color(.5, .5, .5),
+	float weight  = 1.0
+) [[ 
+    anno::hidden() 
+]]
+{
+    return base::blend_color_layers(
+                layers: base::color_layer[](
+                    base::color_layer(
+                        layer_color:    color_2,
+                        weight:         weight,
+                        mode:           base::color_layer_multiply
+                        )),
+                base: color_1
+    );
+}
+
+
+base::texture_return add_colors(
+    color color_1 = color(.5, .5, .5),
+    color color_2 = color(.5, .5, .5),
+	float weight  = 1.0
+) [[ 
+    anno::hidden(), 
+	anno::unused()
+]]
+{
+    return base::blend_color_layers(
+                layers: base::color_layer[](
+                    base::color_layer(
+                        layer_color:    color_2,
+                        weight:         weight,
+                        mode:           base::color_layer_add
+                        )),
+                base: color_1
+    );
+}
+
+base::texture_return blend_colors(
+    color color_1 = color(1.0, 1.0, 1.0),
+    color color_2 = color(.5, .5, .5),
+	float weight  = 1.0
+) [[ 
+    anno::hidden(),
+	anno::unused()
+]]
+{
+    return base::blend_color_layers(
+                layers: base::color_layer[](
+                    base::color_layer(
+                        layer_color:    color_2,
+                        weight:         weight,
+                        mode:           base::color_layer_blend
+                        )),
+                base: color_1
+    );
+}
+
+
+export material OmniPBR_ClearCoat_Opacity(
+
+	color diffuse_color_constant = color(0.2f)
+	[[
+		anno::display_name("Base Color"),
+		anno::description("This is the base color"),
+		anno::in_group("Albedo")
+	]],
+	uniform texture_2d diffuse_texture = texture_2d()
+	[[
+		anno::display_name("Albedo Map"),
+		anno::in_group("Albedo")
+	]],
+	float albedo_desaturation = float(0.0)
+	[[
+		anno::display_name("Albedo Desaturation"),
+		anno::soft_range(float(0.0f), float(1.0f)),
+		anno::description("Desaturates the diffuse color"),
+		anno::in_group("Albedo")
+	]],
+	float albedo_add = float(0.0)
+	[[
+		anno::display_name("Albedo Add"),
+		anno::soft_range(float(-1.0f), float(1.0f)),
+		anno::description("Adds a constant value to the diffuse color "),
+		anno::in_group("Albedo")
+	]],	
+	float albedo_brightness = float(1.0)
+	[[
+		anno::display_name("Albedo Brightness"),
+		anno::soft_range(float(0.0f), float(1.0f)),
+		anno::description("Multiplier for the diffuse color "),
+		anno::in_group("Albedo")
+	]],	
+	color diffuse_tint = color(1.0f)
+	[[
+		anno::display_name("Color Tint"),
+		anno::description("When enabled, this color value is multiplied over the final albedo color"),
+		anno::in_group("Albedo")
+	]],
+	
+
+	// -------------------- REFLECTIVITY ----------------------
+	
+	
+	
+	float reflection_roughness_constant = 0.5f
+	[[
+		anno::display_name("Roughness Amount"),
+		anno::hard_range(0.0,1.),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity")
+	]],
+	float reflection_roughness_texture_influence = 0.0f
+	[[
+		anno::display_name("Roughness Map Influence"),
+		anno::hard_range(0.0, 1.),
+		anno::description("Blends between the constant value and the lookup of the roughness texture"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d reflectionroughness_texture = texture_2d()
+	[[
+		anno::display_name("Roughness Map"),
+		anno::in_group("Reflectivity")
+	]],
+	
+	
+	float metallic_constant = 0.f
+	[[
+		anno::display_name("Metallic Amount"),
+		anno::hard_range(0.0,1.),
+		anno::description("Metallic Material"),
+		anno::in_group("Reflectivity")
+	]],	
+	float metallic_texture_influence = 0.0f
+	[[
+		anno::display_name("Metallic Map Influence"),
+		anno::hard_range(0.0, 1.),
+		anno::description("Blends between the constant value and the lookup of the metallic texture"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d metallic_texture = texture_2d()
+	[[
+		anno::display_name("Metallic Map"),
+		anno::in_group("Reflectivity")
+	]], 
+	float specular_level = float(0.5)
+	[[
+		anno::display_name("Specular"),
+		anno::soft_range(float(0.0f), float(1.0f)),
+		anno::description("The specular level (intensity) of the material"),
+		anno::in_group("Reflectivity")
+	]],
+	// -------------------- ORM ----------------------
+	uniform bool enable_ORM_texture = false
+	[[
+		anno::display_name("Enable ORM Texture"),
+		anno::description("When True the ORM texture will be used to extract the Occlusion, Roughness and Metallic Map"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d ORM_texture = texture_2d()
+	[[
+		anno::display_name("ORM Map"),
+		anno::description("Texture that hae Occlusion, Roughness and Metallic map stored in the respective r, g and b channels"),
+		anno::in_group("Reflectivity")
+	]],
+	
+	// -------------------- AO Group ----------------------
+
+	float ao_to_diffuse = 0.0
+	[[
+		anno::display_name("AO to Diffuse"),
+		anno::description("Controls the amount of ambient occlusion multiplied into the diffuse color channel"),
+		anno::in_group("AO"),
+		anno::hard_range(0.0f, 1.0f)
+	]],
+	uniform texture_2d ao_texture         = texture_2d()
+	[[
+		anno::display_name("Ambient Occlusion Map"),
+		anno::description("The Ambient Occlusion texture for the material"),
+		anno::in_group("AO")
+	]],
+	
+	
+	// -------------------- EMISSIVE ----------------------
+	
+	
+	uniform bool enable_emission = false
+	[[
+        anno::display_name("Enable Emission"),
+		anno::description("Enables the emission of light from the material"),
+		anno::in_group("Emissive")
+	]],
+	
+	color emissive_color    = color(1.0, 0.1, 0.1)
+	[[
+		anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Color"),
+		anno::description("The emission color"),
+		anno::in_group("Emissive")
+	
+	]],
+
+    uniform texture_2d emissive_color_texture = texture_2d() 
+	[[ 
+        anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Color map"),
+        anno::in_group("Emissive"),
+		anno::description("The emissive color texture")
+    ]],
+
+	uniform texture_2d emissive_mask_texture    = texture_2d()
+	[[
+		anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Mask map"),
+		anno::description("The texture masking the emissive color"),
+		anno::in_group("Emissive")
+	]],
+	uniform float emissive_intensity = 40.f
+	[[
+		anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Intensity"),    
+		anno::description("Intensity of the emission"),
+		anno::in_group("Emissive")
+	]],
+
+	// Cutout Opacity
+	uniform bool enable_opacity = true
+	[[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+	uniform bool enable_opacity_texture = false
+	[[
+		anno::display_name("Enable Opacity Texture"),
+		anno::description("Enables or disables the usage of the opacity texture map"),
+		anno::in_group("Opacity")
+	]],
+	uniform float opacity_constant = 1.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Amount"),    
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity")
+	]],
+	uniform texture_2d opacity_texture = texture_2d()
+	[[
+		anno::display_name("Opacity Map"),
+		anno::in_group("Opacity")
+	]],
+	uniform base::mono_mode opacity_mode = base::mono_average
+	[[
+		anno::display_name("Opacity Mono Source"),
+		anno::in_group("Opacity"),
+		anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum")
+	]],
+	uniform float opacity_threshold = 0.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Threshold"),
+		anno::description("If 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity")
+	]],
+	
+	// -------------------- Clearcoat ----------------------
+	uniform bool enable_clearcoat = false
+	[[
+		anno::display_name("Enable Clearcoat Layer"),
+		anno::description("Adds a  clearcoat layer on top of the material when enabled"),
+		anno::in_group("Clearcoat")
+	]],
+	color clearcoat_tint = color(1.0f)
+	[[
+		anno::display_name("Clearcoat Tint"),
+		anno::description("Clearcoat is tinted and affects the underlying material"),
+		anno::in_group("Clearcoat")
+	]],
+	float clearcoat_transparency = 1.0f
+	[[
+		anno::display_name("Clearcoat Transparency"),
+		anno::description("Adjusts the transparency of the clearcoat. Can be turned into a fully opaque clearcoat "
+		"covering the underlying layer"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(0.0f, 1.0f)
+	]],
+	float clearcoat_reflection_roughness = 0.0f
+	[[
+		anno::display_name("Clearcoat Roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::hard_range(0.0f, 1.0f),
+		anno::in_group("Clearcoat")
+	]],
+	float clearcoat_weight = 1.0f
+	[[
+		anno::display_name("Clearcoat Weight"),
+		anno::description("Sets the weight for clearcoat layer"),
+		anno::hard_range(0.0f, 1.0f),
+		anno::in_group("Clearcoat")
+	]],
+	float clearcoat_flatten = 1.0f
+	[[
+		anno::display_name("Clearcoat Flatten"),
+		anno::description("Flattens the clearcoat to even out the underlying bump maps"),
+		anno::hard_range(0.0f, 1.0f),
+		anno::in_group("Clearcoat")
+	]],
+	float clearcoat_ior = 1.56f
+	[[
+		anno::display_name("Clearcoat IOR"),
+		anno::description("Sets the Index of refraction for the clearcoat layer"),
+		anno::soft_range(1.0f, 4.0f),
+		anno::in_group("Clearcoat")
+	]],
+		uniform float clearcoat_bump_factor = 1.f
+	[[
+		anno::display_name("Clearcoat Normal Map Strength"),
+		anno::description("Strength of normal map."),
+		anno::in_group("Clearcoat"),
+		anno::soft_range(0.0f, 1.0f)
+	]],
+	uniform texture_2d clearcoat_normalmap_texture = texture_2d()
+	[[
+		anno::display_name("Clearcoat Normal Map"),
+		anno::description("Enables the usage of the normalmap texture"),
+		anno::in_group("Clearcoat")
+	]], 
+	
+	// -------------------- Normal ----------------------
+	
+	
+	
+	uniform float geometry_normal_roughness_strength = 1.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Normal map to roughness weight"),
+		anno::description("Enables and weights roughness induced by normal maps"),
+		anno::in_group("Normal")
+	]],
+	/*
+	uniform bool enable_normalmap_texture = false
+	[[
+		anno::display_name("Enable Normal Texture"),
+		anno::description("Enables the usage of the normalmap texture"),
+		anno::in_group("Features")
+	]],
+	*/
+		uniform float bump_factor = 1.f
+	[[
+		anno::display_name("Normal Map Strength"),
+		anno::description("Strength of normal map."),
+		anno::in_group("Normal"),
+		anno::soft_range(0.0f, 1.0f)
+	]],
+	
+	uniform texture_2d normalmap_texture = texture_2d()
+	[[
+		anno::display_name("Normal Map"),
+		anno::description("Enables the usage of the normalmap texture"),
+		anno::in_group("Normal")
+	]], 
+	
+
+	
+/*	uniform bool enable_detail_normalmap_texture = false
+	[[
+		anno::display_name("Enable Detail Normal Texture"),
+		anno::in_group("Features"),
+		anno::description("Enables the usage of the detail normalmap texture")
+	]],
+*/
+	uniform float detail_bump_factor = .3f
+	[[
+		anno::display_name("Detail Normal Strength"),
+		anno::in_group("Normal"),
+		anno::soft_range(0.0f, 1.0f),
+		anno::description("Strength of the detail normal")
+	]],
+	uniform texture_2d detail_normalmap_texture = texture_2d()
+	[[
+		anno::display_name("Detail Normal Map"),
+		anno::in_group("Normal")
+	]],
+	uniform bool flip_tangent_u = false  [[
+        anno::display_name("Normal Map Flip U Tangent"),
+        anno::in_group("Normal")
+    ]],
+	uniform bool flip_tangent_v = true [[
+        anno::display_name("Normal Map Flip V Tangent"),
+        anno::in_group("Normal")
+    ]],
+
+	// UV Projection Group
+	uniform bool project_uvw = false
+	[[
+		anno::display_name("Enable Project UVW Coordinates"),
+		anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+		anno::in_group("UV")
+	]],
+	uniform bool world_or_object = false
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Enable World Space"),
+		anno::description("When set to 'true' uses world space for projection, when 'false' object space is used"),
+		anno::in_group("UV")
+	]],
+	
+	uniform int uv_space_index =  0
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("UV Space Index"),
+		anno::description("UV Space Index."),
+		anno::in_group("UV"),
+		anno::hard_range(0, 3)
+	]],
+	
+	// Adjustments Group
+	uniform float2 texture_translate =  float2(0.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Texture Translate"),
+		anno::description("Controls position of texture."),
+		anno::in_group("UV")
+	]],
+	uniform float texture_rotate =  0.f
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Texture Rotate"),
+		anno::description("Rotates angle of texture in degrees."),
+		anno::in_group("UV")
+	]],
+	uniform float2 texture_scale =  float2(1.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Texture Scale"),
+		anno::description("Larger number increases size of texture."),
+		anno::in_group("UV")
+	]],
+	
+	uniform float2 detail_texture_translate =  float2(0.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Detail Texture Translate"),
+		anno::description("Controls the position of the detail texture."),
+		anno::in_group("UV")
+	]],
+	uniform float detail_texture_rotate =  0.f
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Detail Texture Rotate"),
+		anno::description("Rotates angle of the detail texture in degrees."),
+		anno::in_group("UV")
+	]],
+	uniform float2 detail_texture_scale =  float2(1.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Detail Texture Scale"),
+		anno::description("Larger numbers increase the size of the detail texture"),
+		anno::in_group("UV")
+	]],
+	
+	uniform float2 clearcoat_texture_translate =  float2(0.0f)
+	[[
+		anno::display_name("Clearcoat Texture Translate"),
+		anno::description("Controls the position of the detail texture."),
+		anno::in_group("UV")
+	]],
+	uniform float clearcoat_texture_rotate =  0.f
+	[[
+		anno::display_name("Clearcoat Texture Rotate"),
+		anno::description("Rotates angle of the detail texture in degrees."),
+		anno::in_group("UV")
+	]],
+	uniform float2 clearcoat_texture_scale =  float2(1.0f)
+	[[
+		anno::display_name("Clearcoat Texture Scale"),
+		anno::description("Larger numbers increase the size of the detail texture"),
+		anno::in_group("UV")
+	]]
+	
+) 
+[[
+	anno::display_name("OmniPBR ClearCoat Opacity"),
+	anno::description("OmniPBR with ClearCoat. Supports opacity and ORM textures."),
+ 	anno::in_group("Base"),
+	anno::version( 2, 1, 0),
+	anno::author("NVIDIA CORPORATION"), 
+	anno::key_words(string[]("omni", "PBR", "opacity", "omniverse", "generic"))
+]]
+ = let{
+
+	// UVW lookup and transformation
+	base::texture_coordinate_system the_system = world_or_object ? base::texture_coordinate_world : base::texture_coordinate_object;
+	
+	
+	base::texture_coordinate_info uvw = project_uvw ? 
+											base::coordinate_projection(
+												coordinate_system: the_system,
+												texture_space: uv_space_index,
+												projection_type: base::projection_cubic ) :
+											base::coordinate_source(
+												coordinate_system: base::texture_coordinate_uvw,
+												texture_space: uv_space_index
+	);							
+											
+	
+	base::texture_coordinate_info  transformed_uvw =  base::transform_coordinate(
+								transform: rotation_translation_scale(
+									scaling: float3(texture_scale.x, texture_scale.y, 1.0),
+									rotation: float3(0.0, 0.0, texture_rotate/180.*math::PI ),
+									translation: float3(texture_translate.x, texture_translate.y, 0.0)
+								),
+								coordinate: uvw
+	);
+	
+	
+	base::texture_coordinate_info  detail_transformed_uvw =  base::transform_coordinate(
+								transform: rotation_translation_scale(
+									scaling: float3(detail_texture_scale.x, detail_texture_scale.y, 1.0),
+									rotation: float3(0.0, 0.0, detail_texture_rotate/180.*math::PI ),
+									translation: float3(detail_texture_translate.x, detail_texture_translate.y, 0.0)
+								),
+								coordinate: uvw
+	);
+	
+	base::texture_coordinate_info  clearcoat_transformed_uvw = base::transform_coordinate(
+							transform: rotation_translation_scale(
+								scaling: float3(clearcoat_texture_scale.x, clearcoat_texture_scale.y, 1.0),
+								rotation: float3(0.0, 0.0, clearcoat_texture_rotate/180.*math::PI ),
+								translation: float3(clearcoat_texture_translate.x, clearcoat_texture_translate.y, 0.f)
+							),
+							coordinate: uvw
+	);
+	
+	// Normal calculations
+	OmniPBRBase_1::NormalData defaultData = OmniPBRBase_1::NormalData(state::normal(), float2(0));
+
+	OmniPBRBase_1::NormalData normal_data = tex::texture_isvalid(normalmap_texture) ?
+		OmniPBRBase_1::tangent_space_normal_roughness_texture(
+							texture:        normalmap_texture,
+							factor:         bump_factor,
+							uvw:            transformed_uvw,
+							flip_tangent_u: flip_tangent_u,
+							flip_tangent_v: flip_tangent_v	// true for dx, false for opengl
+							//flip_tangent_v: true
+
+		) : defaultData;
+	float3 the_normal = normal_data.normal;
+
+	OmniPBRBase_1::NormalData detail_normal_data = tex::texture_isvalid(detail_normalmap_texture) ?
+		OmniPBRBase_1::tangent_space_normal_roughness_texture(
+							texture:        detail_normalmap_texture,
+							factor:         detail_bump_factor,
+							uvw:            detail_transformed_uvw,
+							flip_tangent_u: flip_tangent_u,
+							flip_tangent_v: flip_tangent_v	// true for dx, false for opengl
+							) : defaultData;
+	float3 detail_normal = detail_normal_data.normal;
+
+	OmniPBRBase_1::NormalData clearcoat_normal_data = tex::texture_isvalid(clearcoat_normalmap_texture) ?
+		OmniPBRBase_1::tangent_space_normal_roughness_texture(
+								texture:        clearcoat_normalmap_texture,
+								factor:         clearcoat_bump_factor,
+								uvw:            clearcoat_transformed_uvw,
+								flip_tangent_u: flip_tangent_u,
+								flip_tangent_v: flip_tangent_v	// true for dx, false for opengl
+							) : defaultData;
+	float3 clearcoat_normal = clearcoat_normal_data.normal;
+
+	float3 diffuse_gloss_normal = tex::texture_isvalid(detail_normalmap_texture) ?	add_detail_normal(detail_normal, the_normal) : the_normal;
+	
+	float3 flattened_clearcoat_normal = ::math::lerp(diffuse_gloss_normal, ::state::normal(), clearcoat_flatten);
+	
+	float3 final_clearcoat_normal = tex::texture_isvalid(clearcoat_normalmap_texture) ?	add_detail_normal(flattened_clearcoat_normal, clearcoat_normal) : flattened_clearcoat_normal;
+
+	
+	// -------------------- ORM Handling -------------------- 
+	float3 ORM_lookup = tex::lookup_float3(
+						tex: ORM_texture,
+						coord: float2(transformed_uvw.position.x, transformed_uvw.position.y)
+	);
+	 
+	float3 roughness_lookup = tex::lookup_float3(
+							tex: reflectionroughness_texture,
+							coord: float2(transformed_uvw.position.x, transformed_uvw.position.y)		
+	);
+	
+	float roughness_selection = enable_ORM_texture ? ORM_lookup.y : roughness_lookup.x;
+	 
+	float reflection_roughness_1 =  math::lerp(reflection_roughness_constant, roughness_selection, reflection_roughness_texture_influence);
+ 
+	
+	// Diffuse Color Lookup and AO
+	
+	base::texture_return base_lookup = base::file_texture(
+							texture: diffuse_texture,
+							color_offset: color(albedo_add),
+							color_scale: color(albedo_brightness),
+							mono_source: base::mono_luminance,
+							uvw: transformed_uvw,
+							clip: false		
+	);
+	
+	base::texture_return ao_lookup = base::file_texture(
+							texture: ao_texture,
+							color_offset: color(0.0, 0.0, 0.0),
+							color_scale: color(1.0, 1.0, 1.0),
+							mono_source: base::mono_average,
+							uvw: transformed_uvw,
+							clip: false		
+	);
+	
+	// checking whether the ORM texture or the AO texture is supposed to be used
+	color ao_color = enable_ORM_texture ? color(ORM_lookup.x) : ao_lookup.tint;
+	
+	color desaturated_base = math::lerp(base_lookup.tint, color(base_lookup.mono), albedo_desaturation);
+	
+	color diffuse_color =  tex::texture_isvalid(diffuse_texture)? desaturated_base : diffuse_color_constant;
+	
+	//color diffuse_color = desaturated_base ;
+	
+	color tinted_diffuse_color = multiply_colors(diffuse_color, diffuse_tint, 1.0).tint ;
+	
+	color base_color = multiply_colors(
+								color_1: tinted_diffuse_color,
+								color_2: ao_color,
+								weight:  ao_to_diffuse
+	).tint;
+	
+	float3 metallic_lookup = tex::lookup_float3(
+						tex: metallic_texture,
+						coord: float2(transformed_uvw.position.x, transformed_uvw.position.y)
+	);
+					
+	// Choose between ORM or metallic map
+	float metallic_selection = enable_ORM_texture ? ORM_lookup.z : metallic_lookup.x;
+	
+	// blend between the constant metallic value and the map lookup
+	float metallic =  math::lerp(metallic_constant, metallic_selection, metallic_texture_influence);
+	
+	
+	bsdf diffuse_bsdf = df::weighted_layer(
+		weight: 1.0,
+		layer: df::diffuse_reflection_bsdf(
+			tint: base_color,
+			roughness: 0.f ),
+		base: bsdf(),
+		normal: enable_clearcoat ? diffuse_gloss_normal : state::normal()
+	);
+
+	// The glossy reflection BSDF
+	// TODO: Clearcoat's induced roughness from normal map should also apply here, but right now avoiding it due to confusing relationship in the normals
+	bsdf ggx_smith_bsdf = df::microfacet_ggx_smith_bsdf(
+		roughness_u:reflection_roughness_1 * reflection_roughness_1 + (geometry_normal_roughness_strength * normal_data.roughness.x * normal_data.roughness.x),
+		roughness_v:reflection_roughness_1 * reflection_roughness_1 + (geometry_normal_roughness_strength * normal_data.roughness.y * normal_data.roughness.y),
+		tint: color(1.0, 1.0, 1.0),
+		mode: df::scatter_reflect
+	);
+	
+	
+	bsdf custom_curve_layer_bsdf = df::custom_curve_layer(
+		normal_reflectivity:  0.08,		
+		grazing_reflectivity: 1.0,
+		exponent:	          5.0,
+		weight:	              specular_level,
+		layer:                ggx_smith_bsdf,
+		base:	              diffuse_bsdf,
+		normal:               enable_clearcoat ? diffuse_gloss_normal : state::normal()
+	);
+	
+	// Replaced by tinting as this reproduces the UE4 behavior more faithfully
+	 // bsdf directional_factor_bsdf = df::directional_factor(
+		 // normal_tint:  base_color,
+		 // grazing_tint: base_color,     //color(1.0, 1.0, 1.0),
+		 // exponent: 3.0f,
+		 // base: ggx_smith_bsdf
+	 // );
+	
+	bsdf directional_factor_bsdf = df::tint(base_color, ggx_smith_bsdf);
+	
+	
+	// CLEARCOAT 
+
+	
+	bsdf omni_PBR_bsdf = df::weighted_layer(
+        weight: metallic,
+        layer:	directional_factor_bsdf,
+		base:	custom_curve_layer_bsdf,
+		normal: enable_clearcoat ? diffuse_gloss_normal : state::normal()
+	);
+	
+	bsdf clearcoat_bsdf = df::microfacet_ggx_smith_bsdf(
+		roughness_u: clearcoat_reflection_roughness * clearcoat_reflection_roughness + (geometry_normal_roughness_strength * clearcoat_normal_data.roughness.x * clearcoat_normal_data.roughness.x),
+		roughness_v: clearcoat_reflection_roughness * clearcoat_reflection_roughness + (geometry_normal_roughness_strength * clearcoat_normal_data.roughness.y * clearcoat_normal_data.roughness.y),
+		tint:        color(1.0f),
+		mode:        df::scatter_reflect
+	);
+	
+	// bsdf omni_PBR_coated_bsdf = df::custom_curve_layer(
+		// normal_reflectivity:  clearcoat_reflectivity * 0.08,
+		// grazing_reflectivity: 1.0,
+		// weight:               clearcoat_weight,
+		// layer:                clearcoat_bsdf,
+		// base:                 omni_PBR_bsdf,
+		// normal:               final_clearcoat_normal
+	// );
+	
+	bsdf opaque_clearcoat = df::weighted_layer(
+        weight: clearcoat_transparency,
+		layer:	::df::tint( 
+					tint: clearcoat_tint,
+					base: omni_PBR_bsdf),
+		base:	::df::diffuse_reflection_bsdf(
+					tint: clearcoat_tint)
+	);
+	
+	bsdf omni_PBR_coated_bsdf = df::fresnel_layer(
+		ior:     clearcoat_ior,
+		weight:  clearcoat_weight,
+		layer:   clearcoat_bsdf,
+		base:    opaque_clearcoat,
+		normal:  final_clearcoat_normal
+	);
+	
+	
+	bsdf final_bsdf = enable_clearcoat ? omni_PBR_coated_bsdf : omni_PBR_bsdf;
+
+	// Emission
+	color emissive_color_tx = tex::texture_isvalid(emissive_color_texture) ?
+                        base::file_texture(
+                            texture: emissive_color_texture,
+                            color_offset: color(0.0, 0.0, 0.0),
+                            color_scale: color(1.0, 1.0, 1.0),
+                            mono_source: base::mono_average,
+                            uvw: transformed_uvw,
+                            clip: false        
+    ).tint : emissive_color;
+
+    color emissive_mask = tex::texture_isvalid(emissive_mask_texture) ?
+                        base::file_texture(
+                            texture: emissive_mask_texture,
+                            color_offset: color(0.0, 0.0, 0.0),
+                            color_scale: color(1.0, 1.0, 1.0),
+                            mono_source: base::mono_average,
+                            uvw: transformed_uvw,
+                            clip: false        
+    ).tint : color(1.0);
+	
+	float opacity_value = enable_opacity_texture ? base::file_texture(
+                                                texture: 	 opacity_texture,
+												mono_source: opacity_mode,
+                                                uvw: 		 transformed_uvw
+							).mono : opacity_constant;
+
+	// The opacity_threshold is interpreted as follows:
+	// 1. opacity_threshold > 0: binary opacity masking mode
+	//   i.e.: if opacity_value > opacity_threshold we remap opacity_value to 1.0, otherwise to 0.0
+	// 2. opacity_threshold == 0: fractional opacity mode. Leaves the opacity_value untouched,
+	//   allowing the renderer to use fractional cutout_opacity values, if it supports this feature
+	//
+	// NOTE: when the renderer does not enable 'fractional cutout opacity' it interprets
+	// cutout_opacity values of 1.0 as opaque and anything below as fully transparent
+    float local_cutout_opacity = enable_opacity ? ((opacity_threshold == 0.0) ? opacity_value : ((opacity_value >= opacity_threshold) ? 1.0 : 0)) : 1.0;
+
+} in material(
+	surface: material_surface(
+		scattering: final_bsdf,
+		emission:  material_emission (
+            df::diffuse_edf(),
+            intensity: enable_emission? emissive_color_tx * emissive_mask * color(emissive_intensity) : color(0)
+		)
+	),
+	geometry: material_geometry(
+		normal: enable_clearcoat ? state::normal() : diffuse_gloss_normal,
+		cutout_opacity: local_cutout_opacity
+	)
+);

saved/assets/_dependencies/public_validation/materials/OmniPBR_Opacity.mdl

@@ -0,0 +1,426 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+mdl 1.4;
+
+import ::base::*;
+import ::anno::*;
+
+using OmniPBR_ClearCoat_Opacity import OmniPBR_ClearCoat_Opacity;
+
+
+
+export material OmniPBR_Opacity(
+
+	color diffuse_color_constant = color(0.2f)
+	[[
+		anno::display_name("Base Color"),
+		anno::description("This is the base color"),
+		anno::in_group("Albedo")
+	]],
+	uniform texture_2d diffuse_texture = texture_2d()
+	[[
+		anno::display_name("Albedo Map"),
+		anno::in_group("Albedo")
+	]],
+	float albedo_desaturation = float(0.0)
+	[[
+		anno::display_name("Albedo Desaturation"),
+		anno::soft_range(float(0.0f), float(1.0f)),
+		anno::description("Desaturates the diffuse color"),
+		anno::in_group("Albedo")
+	]],
+	float albedo_add = float(0.0)
+	[[
+		anno::display_name("Albedo Add"),
+		anno::soft_range(float(-1.0f), float(1.0f)),
+		anno::description("Adds a constant value to the diffuse color "),
+		anno::in_group("Albedo")
+	]],	
+	float albedo_brightness = float(1.0)
+	[[
+		anno::display_name("Albedo Brightness"),
+		anno::soft_range(float(0.0f), float(1.0f)),
+		anno::description("Multiplier for the diffuse color "),
+		anno::in_group("Albedo")
+	]],	
+	color diffuse_tint = color(1.0f)
+	[[
+		anno::display_name("Color Tint"),
+		anno::description("When enabled, this color value is multiplied over the final albedo color"),
+		anno::in_group("Albedo")
+	]],
+	
+
+	// -------------------- REFLECTIVITY ----------------------
+	
+	
+	
+	float reflection_roughness_constant = 0.5f
+	[[
+		anno::display_name("Roughness Amount"),
+		anno::hard_range(0.0,1.),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity")
+	]],
+	float reflection_roughness_texture_influence = 0.0f
+	[[
+		anno::display_name("Roughness Map Influence"),
+		anno::hard_range(0.0, 1.),
+		anno::description("Blends between the constant value and the lookup of the roughness texture"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d reflectionroughness_texture = texture_2d()
+	[[
+		anno::display_name("Roughness Map"),
+		anno::in_group("Reflectivity")
+	]],
+	
+	
+	float metallic_constant = 0.f
+	[[
+		anno::display_name("Metallic Amount"),
+		anno::hard_range(0.0,1.),
+		anno::description("Metallic Material"),
+		anno::in_group("Reflectivity")
+	]],	
+	float metallic_texture_influence = 0.0f
+	[[
+		anno::display_name("Metallic Map Influence"),
+		anno::hard_range(0.0, 1.),
+		anno::description("Blends between the constant value and the lookup of the metallic texture"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d metallic_texture = texture_2d()
+	[[
+		anno::display_name("Metallic Map"),
+		anno::in_group("Reflectivity")
+	]], 
+	float specular_level = float(0.5)
+	[[
+		anno::display_name("Specular"),
+		anno::soft_range(float(0.0f), float(1.0f)),
+		anno::description("The specular level (intensity) of the material"),
+		anno::in_group("Reflectivity")
+	]],
+	// -------------------- ORM ----------------------
+	uniform bool enable_ORM_texture = false
+	[[
+		anno::display_name("Enable ORM Texture"),
+		anno::description("When True the ORM texture will be used to extract the Occlusion, Roughness and Metallic Map"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d ORM_texture = texture_2d()
+	[[
+		anno::display_name("ORM Map"),
+		anno::description("Texture that hae Occlusion, Roughness and Metallic map stored in the respective r, g and b channels"),
+		anno::in_group("Reflectivity")
+	]],
+	
+	// -------------------- AO Group ----------------------
+
+	float ao_to_diffuse = 0.0
+	[[
+		anno::display_name("AO to Diffuse"),
+		anno::description("Controls the amount of ambient occlusion multiplied into the diffuse color channel"),
+		anno::in_group("AO"),
+		anno::hard_range(0.0f, 1.0f)
+	]],
+	uniform texture_2d ao_texture         = texture_2d()
+	[[
+		anno::display_name("Ambient Occlusion Map"),
+		anno::description("The Ambient Occlusion texture for the material"),
+		anno::in_group("AO")
+	]],
+	
+	
+	// -------------------- EMISSIVE ----------------------
+	
+	
+	uniform bool enable_emission = false
+	[[
+        anno::display_name("Enable Emission"),
+		anno::description("Enables the emission of light from the material"),
+		anno::in_group("Emissive")
+	]],
+	
+	color emissive_color    = color(1.0, 0.1, 0.1)
+	[[
+		anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Color"),
+		anno::description("The emission color"),
+		anno::in_group("Emissive")
+	
+	]],
+    uniform texture_2d emissive_color_texture = texture_2d() 
+	[[ 
+        anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Color map"),
+        anno::in_group("Emissive"),
+		anno::description("The emissive color texture")
+    ]],
+	uniform texture_2d emissive_mask_texture    = texture_2d()
+	[[
+		anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Mask map"),
+		anno::description("The texture masking the emissive color"),
+		anno::in_group("Emissive")
+	]],
+	uniform float emissive_intensity = 40.f
+	[[
+		anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Intensity"),    
+		anno::description("Intensity of the emission"),
+		anno::in_group("Emissive")
+	]],
+
+	// Cutout Opacity
+	uniform bool enable_opacity = true
+	[[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+	uniform bool enable_opacity_texture = false
+	[[
+		anno::display_name("Enable Opacity Texture"),
+		anno::description("Enables or disables the usage of the opacity texture map"),
+		anno::in_group("Opacity")
+	]],
+	uniform float opacity_constant = 1.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Amount"),    
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity")
+	]],
+	uniform texture_2d opacity_texture = texture_2d()
+	[[
+		anno::display_name("Opacity Map"),
+		anno::in_group("Opacity")
+	]],
+	uniform base::mono_mode opacity_mode = base::mono_average
+	[[
+		anno::display_name("Opacity Mono Source"),
+		anno::in_group("Opacity"),
+		anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum")
+	]],
+	uniform float opacity_threshold = 0.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Threshold"),
+		anno::description("If negative, disable cutout_opacity; if 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity")
+	]],	
+	
+	// -------------------- Normal ----------------------
+	
+	
+	
+	/*
+	uniform bool enable_normalmap_texture = false
+	[[
+		anno::display_name("Enable Normal Texture"),
+		anno::description("Enables the usage of the normalmap texture"),
+		anno::in_group("Features")
+	]],
+	*/
+		uniform float bump_factor = 1.f
+	[[
+		anno::display_name("Normal Map Strength"),
+		anno::description("Strength of normal map."),
+		anno::in_group("Normal"),
+		anno::soft_range(0.0f, 1.0f)
+	]],
+	
+	uniform texture_2d normalmap_texture = texture_2d()
+	[[
+		anno::display_name("Normal Map"),
+		anno::description("Enables the usage of the normalmap texture"),
+		anno::in_group("Normal")
+	]], 
+	
+
+	
+/*	uniform bool enable_detail_normalmap_texture = false
+	[[
+		anno::display_name("Enable Detail Normal Texture"),
+		anno::in_group("Features"),
+		anno::description("Enables the usage of the detail normalmap texture")
+	]],
+*/
+	uniform float detail_bump_factor = .3f
+	[[
+		anno::display_name("Detail Normal Strength"),
+		anno::in_group("Normal"),
+		anno::soft_range(0.0f, 1.0f),
+		anno::description("Strength of the detail normal")
+	]],
+	uniform texture_2d detail_normalmap_texture = texture_2d()
+	[[
+		anno::display_name("Detail Normal Map"),
+		anno::in_group("Normal")
+	]],
+	// UV Projection Group
+	uniform bool project_uvw = false
+	[[
+		anno::display_name("Enable Project UVW Coordinates"),
+		anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+		anno::in_group("UV")
+	]],
+	uniform bool world_or_object = false
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Enable World Space"),
+		anno::description("When set to 'true' uses world space for projection, when 'false' object space is used"),
+		anno::in_group("UV")
+	]],
+	
+	uniform int uv_space_index =  0
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("UV Space Index"),
+		anno::description("UV Space Index."),
+		anno::in_group("UV"),
+		anno::hard_range(0, 3)
+	]],
+	
+	// Adjustments Group
+	uniform float2 texture_translate =  float2(0.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Texture Translate"),
+		anno::description("Controls position of texture."),
+		anno::in_group("UV")
+	]],
+	uniform float texture_rotate =  0.f
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Texture Rotate"),
+		anno::description("Rotates angle of texture in degrees."),
+		anno::in_group("UV")
+	]],
+	uniform float2 texture_scale =  float2(1.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Texture Scale"),
+		anno::description("Larger number increases size of texture."),
+		anno::in_group("UV")
+	]],
+	
+	uniform float2 detail_texture_translate =  float2(0.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Detail Texture Translate"),
+		anno::description("Controls the position of the detail texture."),
+		anno::in_group("UV")
+	]],
+	uniform float detail_texture_rotate =  0.f
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Detail Texture Rotate"),
+		anno::description("Rotates angle of the detail texture in degrees."),
+		anno::in_group("UV")
+	]],
+	uniform float2 detail_texture_scale =  float2(1.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Detail Texture Scale"),
+		anno::description("Larger numbers increase the size of the detail texture"),
+		anno::in_group("UV")
+	]]	
+) 
+[[
+	anno::display_name("OmniPBR Opacity"),
+	anno::description("OmniPBR supports opacity and ORM textures"),
+ 	anno::in_group("Base"),
+	anno::version( 2, 1, 0),
+	anno::author("NVIDIA CORPORATION"), 
+	anno::key_words(string[]("omni", "PBR", "opacity", "omniverse", "generic"))
+]]
+ = OmniPBR_ClearCoat_Opacity(
+	diffuse_texture:			diffuse_texture,
+    albedo_desaturation:		albedo_desaturation,
+    albedo_add: 				albedo_add,
+    albedo_brightness: 			albedo_brightness,
+	diffuse_color_constant: 	diffuse_color_constant,
+    diffuse_tint: 				diffuse_tint,
+	//ao
+	ao_texture: 				ao_texture,
+    ao_to_diffuse: 				ao_to_diffuse,
+    //ORM
+	ORM_texture: 				ORM_texture,
+    enable_ORM_texture: 		enable_ORM_texture,
+	//reflectivity
+    reflection_roughness_constant:			reflection_roughness_constant,
+    reflectionroughness_texture:			reflectionroughness_texture,
+    reflection_roughness_texture_influence:	reflection_roughness_texture_influence,
+    metallic_constant:						metallic_constant,
+    metallic_texture: 						metallic_texture,
+    metallic_texture_influence: 			metallic_texture_influence,
+    specular_level: 						specular_level,
+	//opacity
+	enable_opacity: 						enable_opacity,
+    enable_opacity_texture: 				enable_opacity_texture,
+	opacity_texture: 						opacity_texture,
+    opacity_constant: 						opacity_constant,
+	opacity_mode:							opacity_mode,
+	opacity_threshold:						opacity_threshold,
+	//emissive
+    enable_emission: 						enable_emission,
+    emissive_color: 						emissive_color,
+	emissive_color_texture:					emissive_color_texture,
+    emissive_mask_texture: 					emissive_mask_texture,
+    emissive_intensity: 					emissive_intensity,
+	//clearcoat
+    enable_clearcoat: 						false,
+    clearcoat_tint: 						color(1.0f),
+    clearcoat_transparency: 				1.0f,
+    clearcoat_reflection_roughness: 		0.0f,
+    clearcoat_weight: 						1.0f,
+    clearcoat_flatten: 						1.0f,
+    clearcoat_ior: 							1.56f,
+    clearcoat_bump_factor: 					1.f,
+    clearcoat_normalmap_texture: 			texture_2d(),
+	//normal
+    normalmap_texture: 						normalmap_texture,
+    bump_factor:							bump_factor,
+    detail_normalmap_texture: 				detail_normalmap_texture,
+    detail_bump_factor: 					detail_bump_factor,
+    project_uvw: 							project_uvw,
+    world_or_object: 						world_or_object,
+    uv_space_index: 						uv_space_index,
+    texture_translate: 						texture_translate,
+    texture_rotate: 						texture_rotate,
+    texture_scale: 							texture_scale,
+    detail_texture_translate: 				detail_texture_translate,
+    detail_texture_rotate: 					detail_texture_rotate,
+    detail_texture_scale: 					detail_texture_scale,
+	clearcoat_texture_translate: 			float2(0.0f),
+	clearcoat_texture_rotate:				0.0f,
+	clearcoat_texture_scale:				float2(1.0f)
+	);

saved/assets/_dependencies/public_validation/materials/OmniSurface.mdl

@@ -0,0 +1,1688 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+// Wrapper for OmniSurfaceBase material
+
+mdl 1.7;
+
+import ::anno::*;
+import ::base::*;
+import ::limits::*;
+import ::state::*;
+import ::tex::*;
+
+import ::OmniSurface::OmniSurfaceBase::*;
+import ::OmniSurface::OmniShared::*;
+import ::OmniSurface::OmniImage::*;
+
+export material OmniSurface(
+
+    //Diffuse reflection
+    //
+    float diffuse_reflection_weight = float(0.8) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Base"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d diffuse_reflection_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Base"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode diffuse_reflection_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Base")
+    ]],
+
+    color diffuse_reflection_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Base")
+    ]],
+
+    uniform texture_2d diffuse_reflection_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Base")
+    ]],
+
+    float diffuse_reflection_roughness = float(0.0) [[ 
+        anno::display_name("Diffuse Roughness"),
+        anno::in_group("Base"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d diffuse_reflection_roughness_image = texture_2d() [[ 
+        anno::display_name("Diffuse Roughness Image"),
+        anno::in_group("Base"),
+        anno::usage("roughness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode diffuse_reflection_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Diffuse Roughness Alpha Mode"),
+        anno::in_group("Base")
+    ]],
+
+    //Metal
+    //
+    float metalness = float(0.0) [[ 
+        anno::display_name("Metalness"),
+        anno::in_group("Base"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d metalness_image = texture_2d() [[ 
+        anno::display_name("Metalness Image"),
+        anno::in_group("Base"),
+        anno::usage("metalness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode metalness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Metalness Image Alpha Mode"),
+        anno::in_group("Base")
+    ]],
+
+    //Specular reflection
+    //
+    float specular_reflection_weight = float(1.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Specular"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_reflection_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Specular"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.                
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_reflection_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Specular")
+    ]],
+
+    color specular_reflection_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Specular")
+    ]],
+
+    uniform texture_2d specular_reflection_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Specular")
+    ]],
+
+    float specular_reflection_roughness = float(0.2) [[ 
+        anno::display_name("Roughness"),
+        anno::in_group("Specular"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_reflection_roughness_image = texture_2d() [[ 
+        anno::display_name("Roughness Image"),
+        anno::in_group("Specular"),
+        anno::usage("roughness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_reflection_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Roughness Image Alpha Mode"),
+        anno::in_group("Specular")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::ior_presets specular_reflection_ior_preset = 
+        ::OmniSurface::OmniShared::ior_custom [[
+        anno::display_name("IOR Preset"),
+        anno::in_group("Specular")
+    ]],
+
+    uniform float specular_reflection_ior = float(1.5) [[ 
+        anno::display_name("IOR"),    
+        anno::in_group("Specular"),
+        anno::soft_range(1.0f, 5.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    float specular_reflection_anisotropy = float(0.0) [[ 
+        anno::display_name("Anisotropy"),
+        anno::in_group("Specular"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_reflection_anisotropy_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Image"),
+        anno::in_group("Specular"),
+        anno::usage("anisotropy")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_reflection_anisotropy_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Image Alpha Mode"),
+        anno::in_group("Specular")
+    ]],
+
+    float specular_reflection_anisotropy_rotation = float(0.0) [[ 
+        anno::display_name("Rotation (radian)"),
+        anno::in_group("Specular"),
+        anno::soft_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_reflection_anisotropy_rotation_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Rotation Image"),
+        anno::in_group("Specular"),
+        anno::usage("anisotropy_rotation")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_reflection_anisotropy_rotation_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Rotation Alpha Mode"),
+        anno::in_group("Specular")
+    ]],
+
+    //Specular transmission
+    //
+    uniform bool enable_specular_transmission = false [[
+        anno::display_name("Enable Transmission"),
+        anno::description("Enables the use of transmission"),
+        anno::in_group("Transmission")
+    ]],
+
+    float specular_transmission_weight = float(0.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Transmission"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_transmission_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Transmission"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_transmission_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Transmission")
+    ]],
+
+    color specular_transmission_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Transmission")
+    ]],
+
+    uniform texture_2d specular_transmission_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Transmission")
+    ]],
+
+    float specular_transmission_scattering_depth = float(0.0) [[ 
+        anno::display_name("Depth"),
+        anno::in_group("Transmission"),    
+        anno::soft_range(0.0f, 100.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    uniform texture_2d specular_transmission_scattering_depth_image = texture_2d() [[ 
+        anno::display_name("Depth Image"),
+        anno::in_group("Transmission"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_transmission_scattering_depth_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Depth Image Alpha Mode"),
+        anno::in_group("Transmission")
+    ]],
+
+    color specular_transmission_scattering_color = color(0.0) [[ 
+        anno::display_name("Scatter"),
+        anno::in_group("Transmission")
+    ]],
+
+    uniform texture_2d specular_transmission_scattering_color_image = texture_2d() [[ 
+        anno::display_name("Scatter Image"),
+        anno::in_group("Transmission")
+    ]],
+
+    float specular_transmission_scatter_anisotropy = float(0.0) [[ 
+        anno::display_name("Scatter Anisotropy"),
+        anno::in_group("Transmission"),
+        anno::hard_range(-1.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_transmission_scatter_anisotropy_image = texture_2d() [[ 
+        anno::display_name("Scatter Anisotropy Image"),
+        anno::in_group("Transmission")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_transmission_scatter_anisotropy_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Scatter Anisotropy Image Alpha Mode"),
+        anno::in_group("Transmission")
+    ]],
+
+    uniform float specular_transmission_dispersion_abbe = float(0.0) [[ 
+        anno::display_name("Dispersion Abbe"),    
+        anno::in_group("Transmission"),
+        anno::soft_range(0.0f, 100.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    //Subsurface
+    //
+    uniform bool enable_diffuse_transmission = false [[
+        anno::display_name("Enable Subsurface"),
+        anno::description("Enables the use of subsurface"),
+        anno::in_group("Subsurface")
+    ]],
+
+    float subsurface_weight = float(0.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Subsurface"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d subsurface_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Subsurface"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode subsurface_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Subsurface")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::scattering_colors_presets subsurface_scattering_colors_preset = 
+        ::OmniSurface::OmniShared::scattering_colors_custom [[
+        anno::display_name("Scattering Presets"),
+        anno::in_group("Subsurface")
+    ]],
+
+    color subsurface_transmission_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Subsurface")
+    ]],
+
+    uniform texture_2d subsurface_transmission_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Subsurface")
+    ]],
+
+    color subsurface_scattering_color = color(1.0) [[
+        anno::display_name("Radius (mfp)"),
+        anno::in_group("Subsurface")
+    ]],
+
+    uniform texture_2d subsurface_scattering_color_image = texture_2d() [[ 
+        anno::display_name("Radius Image"),
+        anno::in_group("Subsurface")
+    ]],
+
+    float subsurface_scale = float(1.0) [[
+        anno::display_name("Scale"),
+        anno::in_group("Subsurface"),
+        anno::soft_range(0.0f, 10.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    uniform texture_2d subsurface_scale_image = texture_2d() [[ 
+        anno::display_name("Scale Image"),
+        anno::in_group("Subsurface"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode subsurface_scale_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Scale Image Alpha Mode"),
+        anno::in_group("Subsurface")
+    ]],
+
+    float subsurface_anisotropy = float(0.0) [[ 
+        anno::display_name("Anisotropy"),
+        anno::in_group("Subsurface"),
+        anno::hard_range(-1.0f, 1.0f)
+    ]],
+
+    uniform texture_2d subsurface_anisotropy_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Image"),
+        anno::in_group("Subsurface"),
+        anno::usage("anisotropy")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode subsurface_anisotropy_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Image Alpha Mode"),
+        anno::in_group("Subsurface")
+    ]],
+
+    //Coat
+    //
+    float coat_weight = float(0.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Coat"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    color coat_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform texture_2d coat_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Coat")
+    ]],
+
+    float coat_roughness = float(0.1) [[ 
+        anno::display_name("Roughness"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_roughness_image = texture_2d() [[ 
+        anno::display_name("Roughness Image"),
+        anno::in_group("Coat"),
+        anno::usage("roughness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Roughness Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::ior_presets coat_ior_preset = 
+        ::OmniSurface::OmniShared::ior_custom [[
+        anno::display_name("IOR Preset"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform float coat_ior = float(1.5) [[ 
+        anno::display_name("IOR"),    
+        anno::in_group("Coat"),
+        anno::soft_range(1.0f, 5.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    float coat_anisotropy = float(0.0) [[ 
+        anno::display_name("Anisotropy"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_anisotropy_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Image"),
+        anno::in_group("Coat"),
+        anno::usage("anisotropy")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_anisotropy_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    float coat_anisotropy_rotation = float(0.0) [[ 
+        anno::display_name("Rotation (radian)"),
+        anno::in_group("Coat"),
+        anno::soft_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_anisotropy_rotation_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Rotation Image"),
+        anno::in_group("Coat"),
+        anno::usage("anisotropy_rotation")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_anisotropy_rotation_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Rotation Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    float coat_affect_color = float(0.0) [[
+        anno::display_name("Affect Color"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_affect_color_image = texture_2d() [[ 
+        anno::display_name("Affect Color Image"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_affect_color_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Affect Color Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    float coat_affect_roughness = float(0.0) [[
+        anno::display_name("Affect Roughness"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_affect_roughness_image = texture_2d() [[ 
+        anno::display_name("Affect Roughness Image"),
+        anno::in_group("Coat"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_affect_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Affect Roughness Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform float coat_normal_strength = float(1.0) [[ 
+        anno::display_name("Normal Strength"),
+        anno::in_group("Coat"),
+        anno::soft_range(0.0f, 1.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    float3 coat_normal = state::normal() [[
+        anno::display_name("Normal"),
+        anno::in_group("Coat"),
+        anno::usage("normal")
+    ]],
+
+    uniform texture_2d coat_normal_image = texture_2d() [[ 
+        anno::display_name("Normal Map Image"),
+        anno::in_group("Coat"),
+        anno::usage("normal")
+    ]],
+
+    uniform bool coat_normal_image_flip_r_channel = false [[
+        anno::display_name("Normal Map Flip R Channel"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform bool coat_normal_image_flip_g_channel = false [[
+        anno::display_name("Normal Map Flip G Channel"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform bool coat_normal_image_flip_b_channel = false [[
+        anno::display_name("Normal Map Flip B Channel"),
+        anno::in_group("Coat")
+    ]],
+
+    //Specular retro-reflection
+    //
+    float specular_retro_reflection_weight = float(0.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Sheen"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_retro_reflection_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Sheen"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_retro_reflection_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Sheen")
+    ]],
+
+    color specular_retro_reflection_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Sheen")
+    ]],
+
+    uniform texture_2d specular_retro_reflection_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Sheen")
+    ]],
+
+    float specular_retro_reflection_roughness = float(0.3) [[ 
+        anno::display_name("Roughness"),
+        anno::in_group("Sheen"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_retro_reflection_roughness_image = texture_2d() [[ 
+        anno::display_name("Roughness Image"),
+        anno::in_group("Sheen"),
+        anno::usage("roughness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_retro_reflection_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Roughness Image Alpha Mode"),
+        anno::in_group("Sheen")
+    ]],
+
+    //Emission
+    //
+    float emission_weight = float(0.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Emission"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d emission_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Emission"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode emission_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Emission")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::emission_mode emission_mode = 
+        ::OmniSurface::OmniShared::emission_lx [[
+        anno::display_name("Emission Mode"),
+        anno::in_group("Emission")
+    ]],
+
+    float emission_intensity = float(1.0) [[
+        anno::display_name("Intensity"),
+        anno::in_group("Emission"),
+        anno::soft_range(0.0f, 1000.0f)
+    ]],
+
+    uniform texture_2d emission_intensity_image = texture_2d() [[ 
+        anno::display_name("Intensity Image"),
+        anno::in_group("Emission"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode emission_intensity_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Intensity Image Alpha Mode"),
+        anno::in_group("Emission")
+    ]],
+
+    color emission_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Emission")
+    ]],
+
+    uniform texture_2d emission_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Emission")
+    ]],
+
+    uniform bool emission_use_temperature = false [[ 
+        anno::display_name("Use Temperature"),
+        anno::in_group("Emission")
+    ]],
+
+    float emission_temperature = float(6500.0) [[
+        anno::display_name("Temperature (kelvin)"),
+        anno::in_group("Emission"),
+        anno::soft_range(0.0f, 10000.0f)
+    ]],
+
+    uniform texture_2d emission_temperature_image = texture_2d() [[ 
+        anno::display_name("Temperature Image"),
+        anno::in_group("Emission"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode emission_temperature_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Temperature Image Alpha Mode"),
+        anno::in_group("Emission")
+    ]],
+
+    //Thin Film
+    //
+    uniform bool enable_thin_film = false [[ 
+        anno::display_name("Enable Thin Film"),
+        anno::description("Enable the use of thin film"),
+        anno::in_group("Thin Film")
+    ]],
+
+    float thin_film_thickness = float(400.0) [[
+        anno::display_name("Thickness (nm)"),
+        anno::in_group("Thin Film"),
+        anno::soft_range(0.0f, 2000.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    uniform texture_2d thin_film_thickness_image = texture_2d() [[ 
+        anno::display_name("Thickness Image"),
+        anno::in_group("Thin Film"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+   uniform ::OmniSurface::OmniImage::alpha_mode thin_film_thickness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Thickness Image Alpha Mode"),
+        anno::in_group("Thin Film")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::ior_presets thin_film_ior_preset = 
+        ::OmniSurface::OmniShared::ior_custom [[
+        anno::display_name("IOR Preset"),
+        anno::in_group("Thin Film")
+    ]],
+
+    uniform float thin_film_ior = float(1.5) [[
+        anno::display_name("IOR"),
+        anno::in_group("Thin Film"),
+        anno::soft_range(1.0f, 3.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    //Geometry
+    //
+    uniform bool thin_walled = false [[ 
+        anno::display_name("Thin Walled"),
+        anno::description("Thin surface with no interior."),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform bool enable_opacity = false [[
+        anno::display_name("Enable Opacity"),
+        anno::description("Enables the use of cutout opacity"),
+        anno::in_group("Geometry")
+    ]],
+
+    float geometry_opacity = float(1.0) [[
+        anno::display_name("Opacity"),
+        anno::in_group("Geometry"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d geometry_opacity_image = texture_2d() [[ 
+        anno::display_name("Opacity Image"),
+        anno::in_group("Geometry"),
+        anno::usage("opacity")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode geometry_opacity_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Opacity Image Alpha Mode"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform float geometry_opacity_threshold = float(0.0) [[
+        anno::display_name("Opacity Threshold"),
+        anno::description("If > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+        anno::in_group("Geometry"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform float geometry_normal_strength = float(1.0) [[ 
+        anno::display_name("Geometry Normal Strength"),
+        anno::in_group("Geometry"),
+        anno::soft_range(0.0f, 1.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+	uniform float geometry_normal_roughness_strength = float(1.0) [[
+		anno::display_name("Geometry Normal Roughness Strength"),
+		anno::in_group("Geometry"),
+        anno::hard_range(0.0f, 1.0f)
+	]],
+
+    float3 geometry_normal = state::normal() [[
+        anno::display_name("Geometry Normal"),
+        anno::in_group("Geometry"),
+        anno::usage("normal")
+    ]],
+
+    uniform texture_2d geometry_normal_image = texture_2d() [[ 
+        anno::display_name("Geometry Normal Map Image"),
+        anno::in_group("Geometry"),
+        anno::usage("normal")
+    ]],
+
+    uniform bool geometry_normal_image_flip_r_channel = false [[
+        anno::display_name("Normal Map Flip R Channel"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform bool geometry_normal_image_flip_g_channel = false [[
+        anno::display_name("Normal Map Flip G Channel"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform bool geometry_normal_image_flip_b_channel = false [[
+        anno::display_name("Normal Map Flip B Channel"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::tangent_bitangent_mapping geometry_tangent_bitangent_mapping = 
+        ::OmniSurface::OmniImage::red_green [[
+        anno::display_name("Tangent Bitangent Mapping"),
+        anno::in_group("Geometry")
+    ]],
+
+    //Displacement
+    float3 geometry_displacement = float3(0.0) [[
+        anno::display_name("Displacement"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::displacement_mode geometry_displacement_mode = 
+        ::OmniSurface::OmniShared::displacement_height [[
+            anno::display_name("Displacement Mode"),
+            anno::in_group("Geometry")
+    ]],
+
+    uniform texture_2d geometry_displacement_image = texture_2d() [[ 
+        anno::display_name("Displacement Image"),
+        anno::in_group("Geometry"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode geometry_displacement_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+            anno::display_name("Displacement Image Alpha Mode"),
+            anno::in_group("Geometry")
+    ]],
+
+    float geometry_displacement_scale = float(1.0) [[
+        anno::display_name("Displacement Scale"),
+        anno::in_group("Geometry"),
+        anno::soft_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d geometry_displacement_scale_image = texture_2d() [[ 
+        anno::display_name("Displacement Scale Image"),
+        anno::in_group("Geometry"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode geometry_displacement_scale_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+            anno::display_name("Displacement Scale Image Alpha Mode"),
+            anno::in_group("Geometry")
+    ]],
+
+    float geometry_displacement_scalar_zero_value = float(0.0) [[
+        anno::display_name("Displacement Scalar Zero Value"),
+        anno::in_group("Geometry"),
+        anno::soft_range(0.0f, 1.0f)
+    ]],
+
+    //UVW
+    //
+    uniform base::texture_coordinate_system uvw_texture_coordinate_system = 
+        base::texture_coordinate_uvw [[
+        anno::display_name("Texture Coordinate"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform int uvw_uv_set = 0 [[
+        anno::display_name("UV Set"),
+        anno::in_group("UVW Coordinates"),
+        anno::hard_range(0, 4)
+    ]],
+
+    uniform bool uvw_ignore_missing_textures = false [[
+        anno::display_name("Ignore Missing Images"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    color uvw_missing_texture_color = color(0.0, 0.0, 0.0) [[
+        anno::display_name("Missing Image Color"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform bool uvw_use_uv_coords = false [[
+        anno::display_name("Use UV Coords"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    float2 uvw_uv_coords = float2(0.0) [[
+        anno::display_name("UV Coords"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform float uvw_s_offset = 0.0f [[
+        anno::display_name("Offset U"),
+        anno::in_group("UVW Coordinates"),
+        anno::soft_range(-1.0f, 1.0f)
+    ]],
+
+    uniform float uvw_t_offset = 0.0f [[
+        anno::display_name("Offset V"),
+        anno::in_group("UVW Coordinates"),
+        anno::soft_range(-1.0f, 1.0f)
+    ]],
+
+    uniform ::OmniSurface::OmniImage::wrap_mode uvw_s_wrap = 
+        ::OmniSurface::OmniImage::wrap_periodic [[
+        anno::display_name("Wrap U"),
+        anno::in_group("UVW Coordinates")
+    ]],
+    
+    uniform ::OmniSurface::OmniImage::wrap_mode uvw_t_wrap = 
+        ::OmniSurface::OmniImage::wrap_periodic [[
+        anno::display_name("Wrap V"),
+        anno::in_group("UVW Coordinates")
+    ]],
+    
+    uniform float uvw_s_scale = 1.0f [[
+        anno::display_name("Scale U"),
+        anno::in_group("UVW Coordinates"),
+        anno::soft_range(0.0f, 100.0f)
+    ]],
+
+    uniform float uvw_t_scale = 1.0f [[
+        anno::display_name("Scale V"),
+        anno::in_group("UVW Coordinates"),
+        anno::soft_range(0.0f, 100.0f)
+    ]],
+
+    uniform bool uvw_s_flip = false [[
+        anno::display_name("Flip U"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform bool uvw_t_flip = false [[
+        anno::display_name("Flip V"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform bool uvw_swap_st = false [[
+        anno::display_name("Swap UV"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    //Projection Coordinates (Local / World)
+    uniform ::OmniSurface::OmniImage::projection_mode uvw_projection_mode = 
+        ::OmniSurface::OmniImage::projection_cubic [[
+        anno::display_name("Projection Mode"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform float3 uvw_projection_translate = float3(0.0) [[
+        anno::display_name("Translate"),
+        anno::description("Translate the projected texture."),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform float3 uvw_projection_rotate = float3(0.0) [[
+        anno::display_name("Rotate"),
+        anno::description("Rotate the projected texture."),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform float3 uvw_projection_scale = float3(1.0) [[
+        anno::display_name("Scale"),
+        anno::description("Scale the projected texture."),
+        anno::in_group("UVW Coordinates")
+    ]]
+) 
+[[
+    anno::display_name("OmniSurface"),
+    anno::description("A base material for modeling a variety of surfaces."),
+    anno::author("NVIDIA Corporation"),
+    anno::key_words(string[]("generic", "surface")),
+    anno::version(1, 0, 0, ""),
+ 	anno::in_group("Advanced")    
+]] = let {
+
+    base::texture_coordinate_info texture_coordinate_info = 
+        ::OmniSurface::OmniImage::compute_texture_coordinate_2(
+            uvw_texture_coordinate_system,
+            uvw_uv_set,
+            uvw_s_offset,
+            uvw_t_offset,
+            uvw_s_scale,
+            uvw_t_scale,
+            uvw_s_flip,
+            uvw_t_flip,
+            uvw_swap_st,
+            uvw_projection_mode,
+            uvw_projection_translate,
+            uvw_projection_rotate,
+            uvw_projection_scale);
+
+    ::OmniSurface::OmniImage::normal_roughness_data geometry_normal_roughness_data = 
+        tex::texture_isvalid(geometry_normal_image) ?
+            ::OmniSurface::OmniImage::tangent_space_normal_roughness_lookup_2(
+                geometry_normal_image,
+                uvw_ignore_missing_textures,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                uvw_s_flip,
+                uvw_t_flip,
+                geometry_normal_strength,
+                geometry_normal_image_flip_r_channel,
+                geometry_normal_image_flip_g_channel,
+                geometry_normal_image_flip_b_channel,
+                texture_coordinate_info
+            ) :
+            ::OmniSurface::OmniImage::normal_roughness_data(geometry_normal, float2(0.0));
+
+    material base = ::OmniSurface::OmniSurfaceBase::OmniSurfaceBase(
+
+        //Base
+        //
+        diffuse_reflection_weight: tex::texture_isvalid(diffuse_reflection_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    diffuse_reflection_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                diffuse_reflection_weight_image_alpha_mode
+            ).mono :
+            diffuse_reflection_weight,
+
+        diffuse_reflection_color: tex::texture_isvalid(diffuse_reflection_color_image) ? 
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                diffuse_reflection_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            diffuse_reflection_color,
+
+        diffuse_reflection_roughness: tex::texture_isvalid(diffuse_reflection_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    diffuse_reflection_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                diffuse_reflection_roughness_image_alpha_mode
+            ).mono :
+            diffuse_reflection_roughness,
+
+        //Metalness
+        //
+        metalness: tex::texture_isvalid(metalness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    metalness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                metalness_image_alpha_mode
+            ).mono :
+            metalness,
+
+        //Specular reflection
+        //
+        specular_reflection_weight: tex::texture_isvalid(specular_reflection_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_reflection_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_reflection_weight_image_alpha_mode
+            ).mono :
+            specular_reflection_weight,
+
+        specular_reflection_color: tex::texture_isvalid(specular_reflection_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                specular_reflection_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            specular_reflection_color,
+
+        specular_reflection_roughness: tex::texture_isvalid(specular_reflection_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_reflection_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_reflection_roughness_image_alpha_mode
+            ).mono :
+            specular_reflection_roughness,
+
+        specular_reflection_ior_preset: specular_reflection_ior_preset,
+        specular_reflection_ior: specular_reflection_ior,
+
+        specular_reflection_anisotropy: tex::texture_isvalid(specular_reflection_anisotropy_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_reflection_anisotropy_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_reflection_anisotropy_image_alpha_mode
+            ).mono :
+            specular_reflection_anisotropy,
+
+        specular_reflection_anisotropy_rotation: tex::texture_isvalid(specular_reflection_anisotropy_rotation_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_reflection_anisotropy_rotation_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_reflection_anisotropy_rotation_image_alpha_mode
+            ).mono :
+            specular_reflection_anisotropy_rotation,
+
+        //Specular transmission
+        //
+        enable_specular_transmission: enable_specular_transmission,
+
+        specular_transmission_weight: tex::texture_isvalid(specular_transmission_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_transmission_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_transmission_weight_image_alpha_mode
+            ).mono :
+            specular_transmission_weight,
+
+        specular_transmission_color: tex::texture_isvalid(specular_transmission_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                specular_transmission_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            specular_transmission_color,
+
+        specular_transmission_scattering_depth: tex::texture_isvalid(specular_transmission_scattering_depth_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_transmission_scattering_depth_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_transmission_scattering_depth_image_alpha_mode
+            ).mono :
+            specular_transmission_scattering_depth,
+
+        specular_transmission_scattering_color: tex::texture_isvalid(specular_transmission_scattering_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                specular_transmission_scattering_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            specular_transmission_scattering_color,
+
+        specular_transmission_scatter_anisotropy: tex::texture_isvalid(specular_transmission_scatter_anisotropy_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_transmission_scatter_anisotropy_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_transmission_scatter_anisotropy_image_alpha_mode
+            ).mono :
+            specular_transmission_scatter_anisotropy,
+        
+        specular_transmission_dispersion_abbe: specular_transmission_dispersion_abbe,
+
+        //Subsurface
+        //
+        enable_diffuse_transmission: enable_diffuse_transmission,
+
+        subsurface_weight: tex::texture_isvalid(subsurface_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    subsurface_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                subsurface_weight_image_alpha_mode
+            ).mono :
+            subsurface_weight,
+
+        subsurface_scattering_colors_preset: subsurface_scattering_colors_preset,
+
+        subsurface_transmission_color: tex::texture_isvalid(subsurface_transmission_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                subsurface_transmission_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            subsurface_transmission_color,
+        
+        subsurface_scattering_color: tex::texture_isvalid(subsurface_scattering_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                subsurface_scattering_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            subsurface_scattering_color,
+
+        subsurface_scale: tex::texture_isvalid(subsurface_scale_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    subsurface_scale_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                subsurface_scale_image_alpha_mode
+            ).mono :
+            subsurface_scale,
+
+        subsurface_anisotropy: tex::texture_isvalid(subsurface_anisotropy_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    subsurface_anisotropy_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                subsurface_anisotropy_image_alpha_mode
+            ).mono :
+            subsurface_anisotropy,
+
+        //Coat
+        //
+        coat_weight: tex::texture_isvalid(coat_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_weight_image_alpha_mode
+            ).mono :
+            coat_weight,
+
+        coat_color: tex::texture_isvalid(coat_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                coat_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            coat_color,
+
+        coat_roughness: tex::texture_isvalid(coat_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_roughness_image_alpha_mode
+            ).mono :
+            coat_roughness,
+
+        coat_ior_preset: coat_ior_preset,
+        coat_ior: coat_ior,
+
+        coat_anisotropy: tex::texture_isvalid(coat_anisotropy_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_anisotropy_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_anisotropy_image_alpha_mode
+            ).mono :
+            coat_anisotropy,
+
+        coat_anisotropy_rotation: tex::texture_isvalid(coat_anisotropy_rotation_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_anisotropy_rotation_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_anisotropy_rotation_image_alpha_mode
+            ).mono :
+            coat_anisotropy_rotation,
+
+        coat_affect_color: tex::texture_isvalid(coat_affect_color_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_affect_color_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_affect_color_image_alpha_mode
+            ).mono :
+            coat_affect_color,
+
+        coat_affect_roughness: tex::texture_isvalid(coat_affect_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_affect_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_affect_roughness_image_alpha_mode
+            ).mono :
+            coat_affect_roughness,
+
+        coat_normal: tex::texture_isvalid(coat_normal_image) ?
+            ::OmniSurface::OmniImage::normal_mapping(
+                ::OmniSurface::OmniImage::tangent_space_normal_lookup_2(
+                    coat_normal_image,
+                    uvw_ignore_missing_textures,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    uvw_s_flip,
+                    uvw_t_flip,
+                    coat_normal_strength,
+                    coat_normal_image_flip_r_channel,
+                    coat_normal_image_flip_g_channel,
+                    coat_normal_image_flip_b_channel,
+                    texture_coordinate_info
+                ),
+                geometry_tangent_bitangent_mapping,
+                coat_normal
+            ):
+            coat_normal,
+
+        //Specular retro reflection
+        //
+        specular_retro_reflection_weight: tex::texture_isvalid(specular_retro_reflection_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_retro_reflection_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_retro_reflection_weight_image_alpha_mode
+            ).mono :
+            specular_retro_reflection_weight,
+
+        specular_retro_reflection_color: tex::texture_isvalid(specular_retro_reflection_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                specular_retro_reflection_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            specular_retro_reflection_color,
+
+        specular_retro_reflection_roughness: tex::texture_isvalid(specular_retro_reflection_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_retro_reflection_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_retro_reflection_roughness_image_alpha_mode
+            ).mono :
+            specular_retro_reflection_roughness,
+
+        //Emission
+        //
+        emission_weight: tex::texture_isvalid(emission_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    emission_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                emission_weight_image_alpha_mode
+            ).mono :
+            emission_weight,
+
+        emission_mode: emission_mode,
+
+        emission_intensity: tex::texture_isvalid(emission_intensity_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    emission_intensity_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                emission_intensity_image_alpha_mode
+            ).mono :
+            emission_intensity,
+
+        emission_color: tex::texture_isvalid(emission_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                emission_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+        emission_color,
+
+        emission_use_temperature: emission_use_temperature,
+
+        emission_temperature: tex::texture_isvalid(emission_temperature_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    emission_temperature_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                emission_temperature_image_alpha_mode
+            ).mono :
+            emission_temperature,
+
+        //Thin Film
+        //
+        enable_thin_film: enable_thin_film,
+
+        thin_film_thickness: tex::texture_isvalid(thin_film_thickness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    thin_film_thickness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                thin_film_thickness_image_alpha_mode
+            ).mono :
+            thin_film_thickness,
+
+        thin_film_ior_preset: thin_film_ior_preset,
+        thin_film_ior: thin_film_ior,
+
+        //Geometry
+        //
+        thin_walled: thin_walled,
+
+        enable_opacity: enable_opacity,
+
+        geometry_opacity: tex::texture_isvalid(geometry_opacity_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    geometry_opacity_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                geometry_opacity_image_alpha_mode
+            ).mono :
+            geometry_opacity,
+
+        geometry_opacity_threshold: geometry_opacity_threshold,
+
+        geometry_normal_roughness_strength: geometry_normal_roughness_strength,
+
+        geometry_normal_roughness: geometry_normal_roughness_data.roughness,
+
+        geometry_normal: ::OmniSurface::OmniImage::normal_mapping(
+            geometry_normal_roughness_data.normal,
+            geometry_tangent_bitangent_mapping,
+            geometry_normal),
+
+        geometry_displacement: tex::texture_isvalid(geometry_displacement_image) ?
+            ::OmniSurface::OmniShared::displacement_adjustment(
+                (geometry_displacement_mode == ::OmniSurface::OmniShared::displacement_height) ?
+                    float3(::OmniSurface::OmniImage::texture_adjustment_2(
+                        OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                            ::OmniSurface::OmniImage::texture_lookup_2(
+                                geometry_displacement_image,
+                                uvw_ignore_missing_textures,
+                                uvw_missing_texture_color,
+                                uvw_use_uv_coords,
+                                uvw_uv_coords,
+                                uvw_s_wrap,
+                                uvw_t_wrap,
+                                texture_coordinate_info
+                            ),
+                            geometry_displacement_image_alpha_mode
+                        ),
+                        0.0f,       //exposure
+                        color(0.5), //default_color
+                        color(1.0), //color_gain
+                        color(0.0), //color_offset
+                        1.0f,       //alpha_gain
+                        -1.0f * geometry_displacement_scalar_zero_value, //alpha_offset
+                        false,      //invert
+                        0.0f        //blend_factor
+                    ).mono) :
+
+                    float3(::OmniSurface::OmniImage::texture_lookup_2(
+                            geometry_displacement_image,
+                            uvw_ignore_missing_textures,
+                            uvw_missing_texture_color,
+                            uvw_use_uv_coords,
+                            uvw_uv_coords,
+                            uvw_s_wrap,
+                            uvw_t_wrap,
+                            texture_coordinate_info
+                        ).tint
+                    ),
+
+                geometry_displacement_mode,
+
+                tex::texture_isvalid(geometry_displacement_scale_image) ?
+                    ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                        ::OmniSurface::OmniImage::texture_lookup_2(
+                            geometry_displacement_scale_image,
+                            uvw_ignore_missing_textures,
+                            uvw_missing_texture_color,
+                            uvw_use_uv_coords,
+                            uvw_uv_coords,
+                            uvw_s_wrap,
+                            uvw_t_wrap,
+                            texture_coordinate_info
+                        ),
+                        geometry_displacement_scale_image_alpha_mode
+                    ).mono :
+                    geometry_displacement_scale
+            ):
+            geometry_displacement
+    );
+
+} in material(
+    thin_walled: base.thin_walled,
+    ior: base.ior,
+    surface: base.surface,
+    backface: base.backface,
+    volume: base.volume,
+    geometry: base.geometry
+);

saved/assets/_dependencies/public_validation/materials/OmniSurfaceLite.mdl

@@ -0,0 +1,1187 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+ 
+// Wrapper for OmniSurfaceLiteBase material
+
+mdl 1.7;
+
+import ::anno::*;
+import ::base::*;
+import ::limits::*;
+import ::state::*;
+import ::tex::*;
+
+import ::OmniSurface::OmniSurfaceLiteBase::*;
+import ::OmniSurface::OmniShared::*;
+import ::OmniSurface::OmniImage::*;
+
+export material OmniSurfaceLite(
+
+    //Diffuse reflection
+    //
+    float diffuse_reflection_weight = float(0.8) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Base"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d diffuse_reflection_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Base"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode diffuse_reflection_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Base")
+    ]],
+
+    color diffuse_reflection_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Base")
+    ]],
+
+    uniform texture_2d diffuse_reflection_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Base")
+    ]],
+
+    float diffuse_reflection_roughness = float(0.0) [[ 
+        anno::display_name("Diffuse Roughness"),
+        anno::in_group("Base"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d diffuse_reflection_roughness_image = texture_2d() [[ 
+        anno::display_name("Diffuse Roughness Image"),
+        anno::in_group("Base"),
+        anno::usage("roughness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode diffuse_reflection_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Diffuse Roughness Alpha Mode"),
+        anno::in_group("Base")
+    ]],
+
+    //Metal
+    //
+    float metalness = float(0.0) [[ 
+        anno::display_name("Metalness"),
+        anno::in_group("Base"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d metalness_image = texture_2d() [[ 
+        anno::display_name("Metalness Image"),
+        anno::in_group("Base"),
+        anno::usage("metalness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode metalness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Metalness Image Alpha Mode"),
+        anno::in_group("Base")
+    ]],
+
+    //Specular reflection
+    //
+    float specular_reflection_weight = float(1.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Specular"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_reflection_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Specular"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_reflection_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Specular")
+    ]],
+
+    color specular_reflection_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Specular")
+    ]],
+
+    uniform texture_2d specular_reflection_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Specular")
+    ]],
+
+    float specular_reflection_roughness = float(0.2) [[ 
+        anno::display_name("Roughness"),
+        anno::in_group("Specular"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_reflection_roughness_image = texture_2d() [[ 
+        anno::display_name("Roughness Image"),
+        anno::in_group("Specular"),
+        anno::usage("roughness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_reflection_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Roughness Image Alpha Mode"),
+        anno::in_group("Specular")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::ior_presets specular_reflection_ior_preset = 
+        ::OmniSurface::OmniShared::ior_custom [[
+        anno::display_name("IOR Preset"),
+        anno::in_group("Specular")
+    ]],
+
+    uniform float specular_reflection_ior = float(1.5) [[ 
+        anno::display_name("IOR"),    
+        anno::in_group("Specular"),
+        anno::soft_range(1.0f, 5.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    float specular_reflection_anisotropy = float(0.0) [[ 
+        anno::display_name("Anisotropy"),
+        anno::in_group("Specular"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_reflection_anisotropy_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Image"),
+        anno::in_group("Specular"),
+        anno::usage("aniotropy")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_reflection_anisotropy_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Image Alpha Mode"),
+        anno::in_group("Specular")
+    ]],
+
+    float specular_reflection_anisotropy_rotation = float(0.0) [[ 
+        anno::display_name("Rotation (radian)"),
+        anno::in_group("Specular"),
+        anno::soft_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_reflection_anisotropy_rotation_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Rotation Image"),
+        anno::in_group("Specular"),
+        anno::usage("anisotropy_rotation")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_reflection_anisotropy_rotation_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Rotation Alpha Mode"),
+        anno::in_group("Specular")
+    ]],
+
+    //Coat
+    //
+    float coat_weight = float(0.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Coat"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    color coat_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform texture_2d coat_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Coat")
+    ]],
+
+    float coat_roughness = float(0.1) [[ 
+        anno::display_name("Roughness"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_roughness_image = texture_2d() [[ 
+        anno::display_name("Roughness Image"),
+        anno::in_group("Coat"),
+        anno::usage("roughness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Roughness Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::ior_presets coat_ior_preset = 
+        ::OmniSurface::OmniShared::ior_custom [[
+        anno::display_name("IOR Preset"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform float coat_ior = float(1.5) [[ 
+        anno::display_name("IOR"),    
+        anno::in_group("Coat"),
+        anno::soft_range(1.0f, 5.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    float coat_anisotropy = float(0.0) [[ 
+        anno::display_name("Anisotropy"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_anisotropy_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Image"),
+        anno::in_group("Coat"),
+        anno::usage("anisotropy")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_anisotropy_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    float coat_anisotropy_rotation = float(0.0) [[ 
+        anno::display_name("Rotation (radian)"),
+        anno::in_group("Coat"),
+        anno::soft_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_anisotropy_rotation_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Rotation Image"),
+        anno::in_group("Coat"),
+        anno::usage("anistropy_rotation")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_anisotropy_rotation_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Rotation Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    float coat_affect_color = float(0.0) [[
+        anno::display_name("Affect Color"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_affect_color_image = texture_2d() [[ 
+        anno::display_name("Affect Color Image"),
+        anno::in_group("Coat"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_affect_color_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Affect Color Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    float coat_affect_roughness = float(0.0) [[
+        anno::display_name("Affect Roughness"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_affect_roughness_image = texture_2d() [[ 
+        anno::display_name("Affect Roughness Image"),
+        anno::in_group("Coat"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_affect_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Affect Roughness Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform float coat_normal_strength = float(1.0) [[ 
+        anno::display_name("Normal Strength"),
+        anno::in_group("Coat"),
+        anno::soft_range(0.0f, 1.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    float3 coat_normal = state::normal() [[
+        anno::display_name("Normal"),
+        anno::in_group("Coat"),
+        anno::usage("normal")
+    ]],
+
+    uniform texture_2d coat_normal_image = texture_2d() [[ 
+        anno::display_name("Normal Map Image"),
+        anno::in_group("Coat"),
+        anno::usage("normal")
+    ]],
+
+    uniform bool coat_normal_image_flip_r_channel = false [[
+        anno::display_name("Normal Map Flip R Channel"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform bool coat_normal_image_flip_g_channel = false [[
+        anno::display_name("Normal Map Flip G Channel"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform bool coat_normal_image_flip_b_channel = false [[
+        anno::display_name("Normal Map Flip B Channel"),
+        anno::in_group("Coat")
+    ]],
+
+    //Emission
+    //
+    float emission_weight = float(0.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Emission"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d emission_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Emission"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode emission_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Emission")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::emission_mode emission_mode = 
+        ::OmniSurface::OmniShared::emission_lx
+    [[
+        anno::display_name("Emission Mode"),
+        anno::in_group("Emission")
+    ]],
+
+    float emission_intensity = float(1.0) [[
+        anno::display_name("Intensity"),
+        anno::in_group("Emission"),
+        anno::soft_range(0.0f, 1000.0f)
+    ]],
+
+    uniform texture_2d emission_intensity_image = texture_2d() [[ 
+        anno::display_name("Intensity Image"),
+        anno::in_group("Emission"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode emission_intensity_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Intensity Image Alpha Mode"),
+        anno::in_group("Emission")
+    ]],
+
+    color emission_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Emission")
+    ]],
+
+    uniform texture_2d emission_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Emission")
+    ]],
+
+    uniform bool emission_use_temperature = false [[ 
+        anno::display_name("Use Temperature"),
+        anno::in_group("Emission")
+    ]],
+
+    float emission_temperature = float(6500.0) [[
+        anno::display_name("Temperature (kelvin)"),
+        anno::in_group("Emission"),
+        anno::soft_range(0.0f, 10000.0f)
+    ]],
+
+    uniform texture_2d emission_temperature_image = texture_2d() [[ 
+        anno::display_name("Temperature Image"),
+        anno::in_group("Emission"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode emission_temperature_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Temperature Image Alpha Mode"),
+        anno::in_group("Emission")
+    ]],
+
+    //Geometry
+    //
+    uniform bool enable_opacity = false [[
+        anno::display_name("Enable Opacity"),
+        anno::description("Enables the use of cutout opacity"),
+        anno::in_group("Geometry")
+    ]],
+
+    float geometry_opacity = float(1.0) [[
+        anno::display_name("Opacity"),
+        anno::in_group("Geometry"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d geometry_opacity_image = texture_2d() [[ 
+        anno::display_name("Opacity Image"),
+        anno::in_group("Geometry"),
+        anno::usage("opacity")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode geometry_opacity_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Opacity Image Alpha Mode"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform float geometry_opacity_threshold = float(0.0) [[
+        anno::display_name("Opacity Threshold"),
+        anno::description("If > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+        anno::in_group("Geometry"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform float geometry_normal_strength = float(1.0) [[ 
+        anno::display_name("Geometry Normal Strength"),
+        anno::in_group("Geometry"),
+        anno::soft_range(0.0f, 1.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+	uniform float geometry_normal_roughness_strength = float(1.0) [[
+		anno::display_name("Geometry Normal Roughness Strength"),
+		anno::in_group("Geometry"),
+        anno::hard_range(0.0f, 1.0f)
+	]],
+
+    float3 geometry_normal = state::normal() [[
+        anno::display_name("Geometry Normal"),
+        anno::in_group("Geometry"),
+        anno::usage("normal")
+    ]],
+
+    uniform texture_2d geometry_normal_image = texture_2d() [[ 
+        anno::display_name("Geometry Normal Map Image"),
+        anno::in_group("Geometry"),
+        anno::usage("normal")
+    ]],
+
+    uniform bool geometry_normal_image_flip_r_channel = false [[
+        anno::display_name("Normal Map Flip R Channel"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform bool geometry_normal_image_flip_g_channel = false [[
+        anno::display_name("Normal Map Flip G Channel"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform bool geometry_normal_image_flip_b_channel = false [[
+        anno::display_name("Normal Map Flip B Channel"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::tangent_bitangent_mapping geometry_tangent_bitangent_mapping = 
+        ::OmniSurface::OmniImage::red_green [[
+        anno::display_name("Tangent Bitangent Mapping"),
+        anno::in_group("Geometry")
+    ]],
+
+    //Displacement
+    float3 geometry_displacement = float3(0.0) [[
+        anno::display_name("Displacement"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::displacement_mode geometry_displacement_mode = 
+        ::OmniSurface::OmniShared::displacement_height [[
+            anno::display_name("Displacement Mode"),
+            anno::in_group("Geometry")
+    ]],
+
+    uniform texture_2d geometry_displacement_image = texture_2d() [[ 
+        anno::display_name("Displacement Image"),
+        anno::in_group("Geometry"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode geometry_displacement_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+            anno::display_name("Displacement Image Alpha Mode"),
+            anno::in_group("Geometry")
+    ]],
+
+    float geometry_displacement_scale = float(1.0) [[
+        anno::display_name("Displacement Scale"),
+        anno::in_group("Geometry"),
+        anno::soft_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d geometry_displacement_scale_image = texture_2d() [[ 
+        anno::display_name("Displacement Scale Image"),
+        anno::in_group("Geometry"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode geometry_displacement_scale_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+            anno::display_name("Displacement Scale Image Alpha Mode"),
+            anno::in_group("Geometry")
+    ]],
+
+    float geometry_displacement_scalar_zero_value = float(0.0) [[
+        anno::display_name("Displacement Scalar Zero Value"),
+        anno::in_group("Geometry"),
+        anno::soft_range(0.0f, 1.0f)
+    ]],
+
+    //UVW
+    //
+    uniform base::texture_coordinate_system uvw_texture_coordinate_system = 
+        base::texture_coordinate_uvw [[
+        anno::display_name("Texture Coordinate"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform int uvw_uv_set = 0 [[
+        anno::display_name("UV Set"),
+        anno::in_group("UVW Coordinates"),
+        anno::hard_range(0, 4)
+    ]],
+
+    uniform bool uvw_ignore_missing_textures = false [[
+        anno::display_name("Ignore Missing Images"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    color uvw_missing_texture_color = color(0.0, 0.0, 0.0) [[
+        anno::display_name("Missing Image Color"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform bool uvw_use_uv_coords = false [[
+        anno::display_name("Use UV Coords"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    float2 uvw_uv_coords = float2(0.0) [[
+        anno::display_name("UV Coords"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform float uvw_s_offset = 0.0f [[
+        anno::display_name("Offset U"),
+        anno::in_group("UVW Coordinates"),
+        anno::soft_range(-1.0f, 1.0f)
+    ]],
+
+    uniform float uvw_t_offset = 0.0f [[
+        anno::display_name("Offset V"),
+        anno::in_group("UVW Coordinates"),
+        anno::soft_range(-1.0f, 1.0f)
+    ]],
+
+    uniform ::OmniSurface::OmniImage::wrap_mode uvw_s_wrap = 
+        ::OmniSurface::OmniImage::wrap_periodic [[
+        anno::display_name("Wrap U"),
+        anno::in_group("UVW Coordinates")
+    ]],
+    
+    uniform ::OmniSurface::OmniImage::wrap_mode uvw_t_wrap = 
+        ::OmniSurface::OmniImage::wrap_periodic [[
+        anno::display_name("Wrap V"),
+        anno::in_group("UVW Coordinates")
+    ]],
+    
+    uniform float uvw_s_scale = 1.0f [[
+        anno::display_name("Scale U"),
+        anno::in_group("UVW Coordinates"),
+        anno::soft_range(0.0f, 100.0f)
+    ]],
+
+    uniform float uvw_t_scale = 1.0f [[
+        anno::display_name("Scale V"),
+        anno::in_group("UVW Coordinates"),
+        anno::soft_range(0.0f, 100.0f)
+    ]],
+
+    uniform bool uvw_s_flip = false [[
+        anno::display_name("Flip U"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform bool uvw_t_flip = false [[
+        anno::display_name("Flip V"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform bool uvw_swap_st = false [[
+        anno::display_name("Swap UV"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    //Projection Coordinates (Local / World)
+    uniform ::OmniSurface::OmniImage::projection_mode uvw_projection_mode = 
+        ::OmniSurface::OmniImage::projection_cubic [[
+        anno::display_name("Projection Mode"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform float3 uvw_projection_translate = float3(0.0) [[
+        anno::display_name("Translate"),
+        anno::description("Translate the projected texture."),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform float3 uvw_projection_rotate = float3(0.0) [[
+        anno::display_name("Rotate"),
+        anno::description("Rotate the projected texture."),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform float3 uvw_projection_scale = float3(1.0) [[
+        anno::display_name("Scale"),
+        anno::description("Scale the projected texture."),
+        anno::in_group("UVW Coordinates")
+    ]]
+) 
+[[
+    anno::display_name("OmniSurfaceLite"),
+    anno::description("A base material for modeling a variety of surfaces."),
+    anno::author("NVIDIA Corporation"),
+    anno::key_words(string[]("generic", "surface")),
+    anno::version(1, 0, 0, ""),
+ 	anno::in_group("Advanced")
+]] = let {
+    
+    base::texture_coordinate_info texture_coordinate_info = 
+        ::OmniSurface::OmniImage::compute_texture_coordinate_2(
+            uvw_texture_coordinate_system,
+            uvw_uv_set,
+            uvw_s_offset,
+            uvw_t_offset,
+            uvw_s_scale,
+            uvw_t_scale,
+            uvw_s_flip,
+            uvw_t_flip,
+            uvw_swap_st,
+            uvw_projection_mode,
+            uvw_projection_translate,
+            uvw_projection_rotate,
+            uvw_projection_scale);
+
+    ::OmniSurface::OmniImage::normal_roughness_data geometry_normal_roughness_data = 
+        tex::texture_isvalid(geometry_normal_image) ?
+            ::OmniSurface::OmniImage::tangent_space_normal_roughness_lookup_2(
+                geometry_normal_image,
+                uvw_ignore_missing_textures,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                uvw_s_flip,
+                uvw_t_flip,
+                geometry_normal_strength,
+                geometry_normal_image_flip_r_channel,
+                geometry_normal_image_flip_g_channel,
+                geometry_normal_image_flip_b_channel,
+                texture_coordinate_info
+            ) :
+            ::OmniSurface::OmniImage::normal_roughness_data(geometry_normal, float2(0.0));
+
+    material base = ::OmniSurface::OmniSurfaceLiteBase::OmniSurfaceLiteBase (
+
+        //Base
+        //
+        diffuse_reflection_weight: tex::texture_isvalid(diffuse_reflection_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    diffuse_reflection_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                diffuse_reflection_weight_image_alpha_mode
+            ).mono :
+            diffuse_reflection_weight,
+
+        diffuse_reflection_color: tex::texture_isvalid(diffuse_reflection_color_image) ? 
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                diffuse_reflection_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            diffuse_reflection_color,
+
+        diffuse_reflection_roughness: tex::texture_isvalid(diffuse_reflection_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    diffuse_reflection_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                diffuse_reflection_roughness_image_alpha_mode
+            ).mono :
+            diffuse_reflection_roughness,
+
+        //Metalness
+        //
+        metalness: tex::texture_isvalid(metalness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    metalness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                metalness_image_alpha_mode
+            ).mono :
+            metalness,
+    
+        //Specular reflection
+        //
+        specular_reflection_weight: tex::texture_isvalid(specular_reflection_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_reflection_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_reflection_weight_image_alpha_mode
+            ).mono :
+            specular_reflection_weight,
+
+        specular_reflection_color: tex::texture_isvalid(specular_reflection_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                specular_reflection_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            specular_reflection_color,
+
+        specular_reflection_roughness: tex::texture_isvalid(specular_reflection_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_reflection_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_reflection_roughness_image_alpha_mode
+            ).mono :
+            specular_reflection_roughness,
+
+        specular_reflection_ior_preset: specular_reflection_ior_preset,
+        specular_reflection_ior: specular_reflection_ior,
+
+        specular_reflection_anisotropy: tex::texture_isvalid(specular_reflection_anisotropy_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_reflection_anisotropy_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_reflection_anisotropy_image_alpha_mode
+            ).mono :
+            specular_reflection_anisotropy,
+
+        specular_reflection_anisotropy_rotation: tex::texture_isvalid(
+                specular_reflection_anisotropy_rotation_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_reflection_anisotropy_rotation_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_reflection_anisotropy_rotation_image_alpha_mode
+            ).mono :
+            specular_reflection_anisotropy_rotation,
+
+        //Coat
+        //
+        coat_weight: tex::texture_isvalid(coat_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_weight_image_alpha_mode
+            ).mono :
+            coat_weight,
+
+        coat_color: tex::texture_isvalid(coat_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                coat_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            coat_color,
+
+        coat_roughness: tex::texture_isvalid(coat_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_roughness_image_alpha_mode
+            ).mono :
+            coat_roughness,
+
+        coat_ior_preset: coat_ior_preset,
+        coat_ior: coat_ior,
+
+        coat_anisotropy: tex::texture_isvalid(coat_anisotropy_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_anisotropy_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_anisotropy_image_alpha_mode
+            ).mono :
+            coat_anisotropy,
+
+        coat_anisotropy_rotation: tex::texture_isvalid(coat_anisotropy_rotation_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_anisotropy_rotation_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_anisotropy_rotation_image_alpha_mode
+            ).mono :
+            coat_anisotropy_rotation,
+
+        coat_affect_color: tex::texture_isvalid(coat_affect_color_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_affect_color_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_affect_color_image_alpha_mode
+            ).mono :
+            coat_affect_color,
+
+        coat_affect_roughness: tex::texture_isvalid(coat_affect_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_affect_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_affect_roughness_image_alpha_mode
+            ).mono :
+            coat_affect_roughness,
+
+        coat_normal: tex::texture_isvalid(coat_normal_image) ?
+            ::OmniSurface::OmniImage::normal_mapping(
+                ::OmniSurface::OmniImage::tangent_space_normal_lookup_2(
+                    coat_normal_image,
+                    uvw_ignore_missing_textures,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    uvw_s_flip,
+                    uvw_t_flip,
+                    coat_normal_strength,
+                    coat_normal_image_flip_r_channel,
+                    coat_normal_image_flip_g_channel,
+                    coat_normal_image_flip_b_channel,
+                    texture_coordinate_info
+                ),
+                geometry_tangent_bitangent_mapping,
+                coat_normal
+            ):
+            coat_normal,
+
+        //Emission
+        //
+        emission_weight: tex::texture_isvalid(emission_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    emission_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                emission_weight_image_alpha_mode
+            ).mono :
+            emission_weight,
+
+        emission_mode: emission_mode,
+
+        emission_intensity: tex::texture_isvalid(emission_intensity_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    emission_intensity_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                emission_intensity_image_alpha_mode
+            ).mono :
+            emission_intensity,
+
+        emission_color: tex::texture_isvalid(emission_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                emission_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+        emission_color,
+
+        emission_use_temperature: emission_use_temperature,
+
+        emission_temperature: tex::texture_isvalid(emission_temperature_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    emission_temperature_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                emission_temperature_image_alpha_mode
+            ).mono :
+            emission_temperature,
+
+        //Geometry
+        //
+        enable_opacity: enable_opacity,
+        
+        geometry_opacity: tex::texture_isvalid(geometry_opacity_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                    geometry_opacity_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                geometry_opacity_image_alpha_mode
+            ).mono :
+            geometry_opacity,
+
+        geometry_opacity_threshold: geometry_opacity_threshold,
+
+        geometry_normal_roughness_strength: geometry_normal_roughness_strength,
+        
+        geometry_normal_roughness: geometry_normal_roughness_data.roughness,
+        
+        geometry_normal: ::OmniSurface::OmniImage::normal_mapping(
+            geometry_normal_roughness_data.normal,
+            geometry_tangent_bitangent_mapping,
+            geometry_normal),
+
+        geometry_displacement: tex::texture_isvalid(geometry_displacement_image) ?
+            ::OmniSurface::OmniShared::displacement_adjustment(
+                (geometry_displacement_mode == ::OmniSurface::OmniShared::displacement_height) ?
+                    float3(::OmniSurface::OmniImage::texture_adjustment_2(
+                        OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                            ::OmniSurface::OmniImage::texture_lookup_2(
+                                geometry_displacement_image,
+                                uvw_ignore_missing_textures,
+                                uvw_missing_texture_color,
+                                uvw_use_uv_coords,
+                                uvw_uv_coords,
+                                uvw_s_wrap,
+                                uvw_t_wrap,
+                                texture_coordinate_info
+                            ),
+                            geometry_displacement_image_alpha_mode
+                        ),
+                        0.0f,       //exposure
+                        color(0.5), //default_color
+                        color(1.0), //color_gain
+                        color(0.0), //color_offset
+                        1.0f,       //alpha_gain
+                        -1.0f * geometry_displacement_scalar_zero_value, //alpha_offset
+                        false,      //invert
+                        0.0f        //blend_factor
+                    ).mono) :
+
+                    float3(::OmniSurface::OmniImage::texture_lookup_2(
+                            geometry_displacement_image,
+                            uvw_ignore_missing_textures,
+                            uvw_missing_texture_color,
+                            uvw_use_uv_coords,
+                            uvw_uv_coords,
+                            uvw_s_wrap,
+                            uvw_t_wrap,
+                            texture_coordinate_info
+                        ).tint
+                    ),
+
+                geometry_displacement_mode,
+
+                tex::texture_isvalid(geometry_displacement_scale_image) ?
+                    ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                        ::OmniSurface::OmniImage::texture_lookup_2(
+                            geometry_displacement_scale_image,
+                            uvw_ignore_missing_textures,
+                            uvw_missing_texture_color,
+                            uvw_use_uv_coords,
+                            uvw_uv_coords,
+                            uvw_s_wrap,
+                            uvw_t_wrap,
+                            texture_coordinate_info
+                        ),
+                        geometry_displacement_scale_image_alpha_mode
+                    ).mono :
+                    geometry_displacement_scale
+            ):
+            geometry_displacement
+    );
+    
+} in material(
+    thin_walled: base.thin_walled,
+    ior: base.ior,
+    surface: base.surface,
+    backface: base.backface,
+    volume: base.volume,
+    geometry: base.geometry
+);

saved/assets/_dependencies/public_validation/materials/pbr.mdl

@@ -0,0 +1,910 @@
+/******************************************************************************
+ * Copyright 2022 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+mdl 1.8;
+
+import ::anno::*;
+import ::base::*;
+import ::df::*;
+import ::math::*;
+import ::state::*;
+import ::tex::*;
+import ::scene::*;
+import ::limits::*;
+
+export enum gltf_alpha_mode {
+    opaque,
+    mask,
+    blend
+};
+
+export enum gltf_wrapping_mode {
+    clamp_to_edge = 33071,
+    mirrored_repeat = 33648,
+    repeat = 10497
+};
+
+export struct gltf_texture_lookup_value
+{
+    bool valid = false;
+    float4 value = float4(0.0, 0.0, 0.0, 1.0);
+};
+
+export struct gltf_normal_texture_lookup_value
+{
+    bool valid = false;
+    float3 value = float3(0.0);
+};
+
+float compute_opacity(gltf_alpha_mode mode, float alpha, float cutoff) {
+    switch (mode) {
+        case mask:
+            return alpha < cutoff ? 0.0 : 1.0;
+        case blend:
+            return alpha;
+        case opaque:
+            return 1.0;
+    }
+}
+
+float4 gltf_prepare_tex_float4(gltf_texture_lookup_value sample) {
+    return sample.valid ? sample.value : float4(1.0);
+}
+
+float3 gltf_prepare_tex_float3(gltf_texture_lookup_value sample) {
+    return sample.valid ? float3(sample.value.x, sample.value.y, sample.value.z) : float3(1.0);
+}
+
+float3 gltf_prepare_normal(gltf_normal_texture_lookup_value sample) {
+    return sample.valid ? sample.value : state::normal();
+}
+
+float gltf_prepare_occlusion(gltf_texture_lookup_value sample, float occlusion_strength) {
+    float occulusion = sample.valid ? sample.value.x : 1.0;
+    return math::lerp(1.0, occulusion, occlusion_strength);
+}
+
+color gltf_perpare_emission(gltf_texture_lookup_value sample, color emissive_factor) {
+    return emissive_factor * color(gltf_prepare_tex_float3(sample));
+}
+
+::tex::wrap_mode convert_wrap_mode(gltf_wrapping_mode mode)
+{
+    if (mode == clamp_to_edge)
+        return ::tex::wrap_clamp;
+    if (mode == mirrored_repeat)
+        return ::tex::wrap_mirrored_repeat;
+
+    return ::tex::wrap_repeat;
+}
+
+float2 khr_texture_transform_apply(
+    float2 coord,
+    float2 offset,
+    float rotation,
+    float2 scale
+)
+{
+    // MDL expects the texture coordinate origin at the bottom left (gltf at top left)
+    // Assuming the renderer follows the MDL specification in which case the coordinates
+    // have been flipped either while loading the glTF geometry or while setting up the state.
+
+    // Undo the flipping for the transformation to get into the original glTF texture space.
+    coord = float2(coord.x, 1.0f - coord.y);
+
+    // first scale
+    coord = coord * scale;
+    // then rotate
+    float cos_rotation = ::math::cos(rotation);
+    float sin_rotation = ::math::sin(rotation);
+    coord = float2(cos_rotation * coord.x + sin_rotation * coord.y, cos_rotation * coord.y - sin_rotation * coord.x);
+    // then translate
+    coord = coord + offset;
+
+    // flip back
+    coord = float2(coord.x, 1.0f - coord.y);
+    return coord;
+}
+
+export gltf_texture_lookup_value gltf_texture_lookup(
+    uniform texture_2d texture = texture_2d()
+    [[
+        anno::in_group("Source"),
+        anno::display_name("Texture"),
+        anno::description("Texture File")
+    ]],
+    uniform int tex_coord_index = 0 
+    [[ 
+        anno::in_group("Source"),
+        anno::display_name("Coordinate Set"),
+        anno::description("Texture coordinate set (UV-Set). KHR_texture_transform overrides the textureInfo texCoord value if supplied."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+
+    uniform float2 offset = float2(0.0f, 0.0)
+    [[
+        anno::in_group("Texture Transform"),
+        anno::display_name("Offset"),
+        anno::description("The offset of the UV coordinate origin as a factor of the texture dimensions."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+    uniform float rotation = 0.0
+    [[
+        anno::hard_range(0.0, 2.0 * ::math::PI),
+        anno::in_group("Texture Transform"),
+        anno::display_name("Rotation"),
+        anno::description("Rotate the UVs by this many radians counter-clockwise around the origin. This is equivalent to a similar rotation of the image clockwise."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+    uniform float2 scale = float2(1.0f, 1.0f)
+    [[
+        anno::in_group("Texture Transform"),
+        anno::display_name("Scale"),
+        anno::description("The scale factor applied to the components of the UV coordinates."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+
+    uniform gltf_wrapping_mode wrap_s = repeat
+    [[ 
+        anno::in_group("Sampler"),
+        anno::display_name("Wrap S"),
+        anno::description("S (U) wrapping mode."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+    uniform gltf_wrapping_mode wrap_t = repeat
+    [[
+        anno::in_group("Sampler"),
+        anno::display_name("Wrap T"),
+        anno::description("T (V) wrapping mode."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]]
+)
+[[
+    anno::author("NVIDIA Corporation"),
+    anno::display_name("GLTF Texture Lookup"),
+    anno::description("Function to read a color or color with alpha channel texture.")
+]]
+{
+    gltf_texture_lookup_value tex_ret;
+    if (!tex::texture_isvalid(texture))
+        return tex_ret;
+
+    float3 tex_coord3 = state::texture_coordinate(tex_coord_index);
+    float2 tex_coord = khr_texture_transform_apply(
+        coord: float2(tex_coord3.x, tex_coord3.y),
+        offset: offset,
+        rotation: rotation,
+        scale: scale);
+    
+    tex_ret.value = tex::lookup_float4(
+        tex: texture,
+        coord: tex_coord,
+        wrap_u: convert_wrap_mode(wrap_s),
+        wrap_v: convert_wrap_mode(wrap_t));
+    tex_ret.valid = true;
+    return tex_ret;
+}
+
+export gltf_normal_texture_lookup_value gltf_normal_texture_lookup(
+    uniform texture_2d texture = texture_2d()
+    [[
+        anno::in_group("Source"),
+        anno::display_name("Texture"),
+        anno::description("Texture File")
+    ]],
+    uniform float normal_scale_factor = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Source"),
+        anno::display_name("Normal Scale Factor"),
+        anno::description("Strength of the base layer normal mapping."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+    uniform int tex_coord_index = 0 
+    [[
+        anno::in_group("Source"),
+        anno::display_name("Coordinate Set"),
+        anno::description("Texture coordinate set (UV-Set). KHR_texture_transform overrides the textureInfo texCoord value if supplied."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+    uniform int tex_tangent_index = 0 
+    [[
+        anno::hidden(),
+        anno::in_group("Source"),
+        anno::display_name("Coordinate Set"),
+        anno::description("Tangent to be to construct the tangent frame."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+
+    uniform float2 offset = float2(0.0f, 0.0)
+    [[
+        anno::in_group("Texture Transform"),
+        anno::display_name("Offset"),
+        anno::description("The offset of the UV coordinate origin as a factor of the texture dimensions."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+    uniform float rotation = 0.0
+    [[
+        anno::hard_range(0.0, 2.0 * ::math::PI),
+        anno::in_group("Texture Transform"),
+        anno::display_name("Rotation"),
+        anno::description("Rotate the UVs by this many radians counter-clockwise around the origin. This is equivalent to a similar rotation of the image clockwise."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+    uniform float2 scale = float2(1.0f, 1.0f)
+    [[
+        anno::in_group("Texture Transform"),
+        anno::display_name("Scale"),
+        anno::description("The scale factor applied to the components of the UV coordinates."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+
+    uniform gltf_wrapping_mode wrap_s = repeat
+    [[
+        anno::in_group("Sampler"),
+        anno::display_name("Wrap S"),
+        anno::description("S (U) wrapping mode."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+    uniform gltf_wrapping_mode wrap_t = repeat
+    [[
+        anno::in_group("Sampler"),
+        anno::display_name("Wrap T"),
+        anno::description("T (V) wrapping mode."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]]
+)
+[[
+    anno::author("NVIDIA Corporation"),
+    anno::display_name("GLTF Normal Texture Lookup"),
+    anno::description("Function to read a normal texture.")
+]]
+{
+    gltf_normal_texture_lookup_value tex_ret;
+    if (!::tex::texture_isvalid(texture))
+        return tex_ret;
+
+    float3 tex_coord3 = state::texture_coordinate(tex_coord_index);
+    float2 tex_coord = khr_texture_transform_apply(
+        coord: float2(tex_coord3.x, tex_coord3.y),
+        offset: offset,
+        rotation: rotation,
+        scale: scale);
+
+    tex_ret.value = base::tangent_space_normal_texture(
+        texture: texture,
+        factor: normal_scale_factor,
+        uvw: base::texture_coordinate_info(
+            position: float3(tex_coord.x, tex_coord.y, tex_coord3.z),
+            tangent_u: state::texture_tangent_u(tex_tangent_index),
+            tangent_v: state::texture_tangent_v(tex_tangent_index)),
+        wrap_u: convert_wrap_mode(wrap_s),
+        wrap_v: convert_wrap_mode(wrap_t));
+    tex_ret.valid = true;
+    return tex_ret;
+}
+
+export material gltf_material(
+    // base color
+    uniform color base_color_factor = color(1.0)
+    [[
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("Base Color Factor"),
+        anno::description("The base color of the material. Multiplied to the 'Base Color Texture' if available.")
+    ]],
+
+    gltf_texture_lookup_value base_color_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("Base Color Texture"),
+        anno::description("The base color of the material. Influenced by the 'Base Color Factor'.")
+    ]],
+
+    // KHR_materials_specular
+    uniform float specular_factor = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Specular"),
+        anno::display_name("Specular Factor"),
+        anno::description("The strength of the specular reflection. Multiplied to the 'Specular Texture' if available.")
+    ]],
+    gltf_texture_lookup_value specular_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Specular"),
+        anno::display_name("Specular Texture"),
+        anno::description("A texture that defines the strength of the specular reflection, stored in the alpha (A) channel. This will be multiplied by the 'Specular Factor'.")
+    ]],
+    uniform color specular_color_factor = color(1.0)
+    [[
+        anno::in_group("Specular"),
+        anno::display_name("Specular Color Factor"),
+        anno::description("The F0 color of the specular reflection (linear RGB). Multiplied to the 'Specular Color Texture' if available.")
+    ]],
+    gltf_texture_lookup_value specular_color_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Specular"),
+        anno::display_name("Specular Color Texture"),
+        anno::description("A texture that defines the F0 color of the specular reflection, stored in the RGB channels and encoded in sRGB. This texture will be multiplied by 'Specular Color Factor'.")
+    ]],
+
+    // metallic roughness
+    uniform float metallic_factor = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("Metallic Factor"),
+        anno::description("The metalness of the material. Select between dielectric (0.0) and metallic (1.0). Multiplied to the 'Metal/Rough Texture' value if available.")
+    ]],
+
+    uniform float roughness_factor = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("Roughness Factor"),
+        anno::description("The roughness of the material. Select between very glossy (0.0) and dull (1.0). Multiplied to the 'Metal/Rough Texture' value if available.")
+    ]],
+    gltf_texture_lookup_value metallic_roughness_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("Metal/Rough Texture"),
+        anno::description("Metallic in the red or blue component and roughness in the green component. Influenced by the 'Metallic Factor' and 'Roughness Factor'."),
+        anno::enable_if("metallic_factor>0.0 || roughness_factor>0.0")
+    ]],
+
+    // KHR_materials_ior
+    uniform float ior = 1.5
+    [[
+        anno::hard_range(1.00, 5.0),
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("IOR"),
+        anno::description("The index of refraction.")
+    ]],
+
+    // normal map
+    gltf_normal_texture_lookup_value normal_texture = gltf_normal_texture_lookup()
+    [[
+        anno::in_group("Normal Mapping"),
+        anno::display_name("Normal Texture"),
+        anno::description("Base layer normal map.")
+    ]],
+
+    // KHR_materials_transmission
+    uniform float transmission_factor = 0.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Transmission"),
+        anno::display_name("Transmission Factor"),
+        anno::description("The base percentage of light that is transmitted through the surface. Multiplied to the 'Transmission Texture' if available.")
+    ]],
+    gltf_texture_lookup_value transmission_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Transmission"),
+        anno::display_name("Transmission Texture"),
+        anno::description("A texture that defines the transmission percentage of the surface, stored in the R channel. Influenced by the 'Transmission Factor'."),
+        anno::enable_if("transmission_factor>0")
+    ]],
+
+    // KHR_materials_sheen
+    uniform color sheen_color_factor = color(0.0)
+    [[
+        anno::in_group("Sheen"),
+        anno::display_name("Sheen Color Factor"),
+        anno::description("The sheen color in linear space. Multiplied to the 'Sheen Color Texture' if available.")
+    ]],
+    gltf_texture_lookup_value sheen_color_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Sheen"),
+        anno::display_name("Sheen Color Texture"),
+        anno::description("The sheen color (RGB). The sheen color is in sRGB transfer function. Influenced by the 'Sheen Color Factor'.")
+    ]],
+    uniform float sheen_roughness_factor = 0.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Sheen"),
+        anno::display_name("Sheen Roughness Factor"),
+        anno::description("The sheen roughness. Multiplied to the 'Sheen Roughness Texture' if available.")
+    ]],
+    gltf_texture_lookup_value sheen_roughness_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Sheen"),
+        anno::display_name("Sheen Roughness Texture"),
+        anno::description("The sheen roughness (Alpha) texture. Influenced by the 'Sheen Roughness Factor'.")
+    ]],
+
+    // KHR_materials_clearcoat
+    uniform float clearcoat_factor = 0.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Clearcoat"),
+        anno::display_name("Clearcoat Factor"),
+        anno::description("Strength of the clearcoat. Multiplied to the 'Clearcoat Texture' if available.")
+    ]],
+    gltf_texture_lookup_value clearcoat_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Clearcoat"),
+        anno::display_name("Clearcoat Texture"),
+        anno::description("Strength of the clearcoat. Influenced by the 'Clearcoat Factor'."),
+        anno::enable_if("clearcoat_factor>0")
+    ]],
+    uniform float clearcoat_roughness_factor = 0.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Clearcoat"),
+        anno::display_name("Clearcoat Roughness Factor"),
+        anno::description("The clearcoat layer roughness. Multiplied to the 'Clearcoat Roughness Texture' if available."),
+        anno::enable_if("clearcoat_factor>0.0")
+    ]],
+    gltf_texture_lookup_value clearcoat_roughness_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Clearcoat"),
+        anno::display_name("Clearcoat Roughness Texture"),
+        anno::description("The clearcoat layer roughness texture. Influenced by the 'Clearcoat Roughness Texture'."),
+        anno::enable_if("clearcoat_factor>0.0 && clearcoat_roughness_factor>0.0")
+    ]],
+    gltf_normal_texture_lookup_value clearcoat_normal_texture = gltf_normal_texture_lookup()
+    [[
+        anno::in_group("Clearcoat"),
+        anno::display_name("Clearcoat Normal"),
+        anno::description("The clearcoat normal map texture."),
+        anno::enable_if("clearcoat_factor>0.0")
+    ]],
+
+    // emission
+    uniform color emissive_factor = color(0.0)
+    [[
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Factor"),
+        anno::description("The emissive color of the material. Multiplied to the 'Emissive Texture' if available.")
+    ]],
+    gltf_texture_lookup_value emissive_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Texture"),
+        anno::description("The emissive map texture. Influenced by the 'Emissive Factor'."),
+        anno::enable_if("::math::average(emissive_factor)>0.0")
+    ]],
+    // KHR_materials_emissive_strength
+    uniform float emissive_strength = 1.0
+    [[
+        anno::soft_range(0.0, 1000),
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Strength"),
+        anno::description("The maximum strength of the emissive texture. Multiplied to the 'Emissive Factor'."),
+        anno::enable_if("::math::average(emissive_factor)>0.0")
+    ]],
+
+    // KHR_materials_volume
+    uniform bool thin_walled = true
+    [[
+        anno::in_group("Volume"),
+        anno::display_name("Thin-walled"),
+        anno::description("If true the material is thin-walled. Otherwise the material is a volume boundary. The doubleSided property has no effect on volume boundaries. Note, the thickness parameters are ignored since ray-tracing is used to compute the travelled distance within the volume.")
+    ]],
+    uniform float attenuation_distance = 0.0
+    [[
+        anno::soft_range(0.0, ::limits::FLOAT_MAX),
+        anno::in_group("Volume"),
+        anno::display_name("Attenuation Distance"),
+        anno::description("Density of the medium given as the average distance that light travels in the medium before interacting with a particle. The value is given in world space. A value 0.0 disables it")
+    ]],
+    uniform color attenuation_color = color(1.0)
+    [[
+        anno::in_group("Volume"),
+        anno::display_name("Attenuation Color"),
+        anno::description("The color that white light turns into due to absorption when reaching the attenuation distance.")
+    ]],
+
+    // ambient occlusion
+    gltf_texture_lookup_value occlusion_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Occlusion"),
+        anno::display_name("Occlusion Texture"),
+        anno::description("The occlusion map texture. Influenced by the 'Occlusion Strength'.")
+    ]],
+    uniform float occlusion_strength = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Occlusion"),
+        anno::display_name("Occlusion Strength"),
+        anno::description("A scalar multiplier controlling the amount of occlusion applied. Multiplied to the 'Occlusion Texture'.")
+    ]],
+
+    // alpha
+    uniform gltf_alpha_mode alpha_mode = opaque
+    [[
+        anno::in_group("Opacity"),
+        anno::display_name("Alpha Mode"),
+        anno::description("Select how to interpret the alpha value.")
+    ]],
+    uniform float base_alpha = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Opacity"),
+        anno::display_name("Base Alpha"),
+        anno::description("Select between transparent (0.0) and opaque (1.0). Multiplied to the base color texture alpha channel if available."),
+        anno::enable_if("alpha_mode!=opaque")
+    ]],
+    // alpha for gltf_alpha_mode::mask
+    uniform float alpha_cutoff  = 0.5
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Opacity"),
+        anno::display_name("Alpha Cutoff"),
+        anno::description("Threshold to decide between fully transparent and fully opaque when alpha mode is 'mask'."),
+        anno::enable_if("alpha_mode==mask")
+    ]],
+
+    uniform string vertex_color_name = string("displayColor")
+    [[
+        anno::in_group("Primvar"),
+        anno::display_name("Vertex Color Name"),
+        anno::description("Name of the vertex color primvar usually COLOR_0(gltf), or displayColor(usd)")
+    ]],
+
+    uniform bool use_vertex_color_alpha = false 
+    [[ 
+        anno::in_group("Primvar"),
+        anno::display_name("Use Opacity Channel From Vertex Color"),
+        anno::description("Multipy the Alpha or .w channel from the vertex color with the base alpha value.")
+    ]],
+
+    uniform string vertex_opacity_name = string("displayOpacity")
+    [[
+        anno::in_group("Primvar"),
+        anno::display_name("Vertex Opacity Name"),
+        anno::description("Name of the vertex opacity primvar usually the fourth component of COLOR_0(gltf), or displayOpacity(usd)")
+    ]]
+
+) [[
+    anno::author("NVIDIA Corporation"),
+    anno::display_name("GLTF Material - Metallic-Roughness"),
+    anno::description("Metallic-Roughness Material that takes the GLTF PBR model and KHR extension parameters as input.")
+]] = let {
+
+    // handling GLTF parameters
+    // ------------------------------------------------------------------------
+    
+    float4 base_float4 = gltf_prepare_tex_float4(base_color_texture) * ::scene::data_lookup_float4(vertex_color_name, float4(1.0)); // apply vertex color
+    color base_color = base_color_factor * color(base_float4.x, base_float4.y, base_float4.z);
+    
+    float alpha = base_alpha * (use_vertex_color_alpha == 1 ? base_float4.w : 1.0) * ((vertex_color_name != vertex_opacity_name) ? ::scene::data_lookup_float(vertex_opacity_name, float(1.0)) : 1.0);
+    
+    float3 metallic_roughness = gltf_prepare_tex_float3(metallic_roughness_texture);
+    float metallic = metallic_factor * metallic_roughness.z;
+    float roughness = roughness_factor * metallic_roughness.y;
+
+    float3 normal = gltf_prepare_normal(normal_texture);
+    float occlusion = gltf_prepare_occlusion(occlusion_texture, occlusion_strength);
+    color emissive_color = gltf_perpare_emission(emissive_texture, emissive_factor * math::max(0.0f, emissive_strength));
+
+    // KHR_materials_specular
+    // ------------------------------------------------------------------------
+    color specular_color = color(gltf_prepare_tex_float3(specular_color_texture)) * specular_color_factor;
+    float specular = gltf_prepare_tex_float4(specular_texture).w * specular_factor;
+
+    // KHR_materials_transmission
+    // ------------------------------------------------------------------------
+    float transmission = gltf_prepare_tex_float4(transmission_texture).x * transmission_factor;
+
+    // KHR_materials_sheen
+    // ------------------------------------------------------------------------
+    color sheen_color = color(gltf_prepare_tex_float3(sheen_color_texture)) * sheen_color_factor;
+    float sheen_roughness = gltf_prepare_tex_float4(sheen_roughness_texture).w * sheen_roughness_factor;
+
+    // KHR_materials_clearcoat
+    // ------------------------------------------------------------------------
+    float clearcoat_blend = gltf_prepare_tex_float3(clearcoat_texture).x * clearcoat_factor;
+    float clearcoat_roughness = gltf_prepare_tex_float3(clearcoat_roughness_texture).y * clearcoat_roughness_factor;
+    float clearcoat_roughness2 = clearcoat_roughness * clearcoat_roughness;
+    float3 clearcoat_normal = gltf_prepare_normal(clearcoat_normal_texture);
+    float grazing_refl_coat = math::max((1.0 - clearcoat_roughness), 0.0);
+
+    // metallic roughness model
+    // ------------------------------------------------------------------------
+
+    // compute final roughness by squaring the "roughness" parameter 
+    float roughness2 = roughness * roughness;
+
+    // reduce the reflectivity at grazing angles to avoid "dark edges" 
+    // for high roughness due to the layering
+    float grazing_refl = math::max((1.0 - roughness), 0.0);
+
+    // fresnel term based on ior
+    float f0 = math::pow((ior - 1.0)/(ior + 1.0), 2.0);
+
+    // for the dielectric component we layer the glossy component on top of the diffuse one,
+    // the glossy layer has no color tint
+    bsdf dielectric_component = df::color_custom_curve_layer(
+        weight: color(1.0), // roughness is used to weight between diffuse and glossy
+        normal_reflectivity: math::min(f0 * specular_color, color(1.0)) * specular,
+        grazing_reflectivity: color(grazing_refl * specular),
+        layer: df::microfacet_ggx_vcavities_bsdf(roughness_u: roughness2),
+        base: df::weighted_layer(
+            weight: transmission,
+            base: df::diffuse_reflection_bsdf(tint: base_color * occlusion),
+            layer: df::microfacet_ggx_vcavities_bsdf(
+                roughness_u: roughness2,
+                tint: base_color * occlusion,
+                mode: df::scatter_transmit)),
+        normal: normal
+        );
+
+    // the metallic component doesn't have a diffuse component, 
+    // its only glossy base_color is applied to tint it
+    bsdf metallic_component = df::microfacet_ggx_vcavities_bsdf(
+        tint: base_color * occlusion, 
+        roughness_u: roughness2);
+
+    // apply sheen to the dielectic component
+    // add the sheen_color as weight in an outer layer to be able to blend and disable on default 
+    // otherwise, sheen would be applied and tinted black
+    bsdf dielectric_sheen_component = df::color_weighted_layer(
+        weight: sheen_color, 
+        layer: df::sheen_bsdf(
+            roughness: sheen_roughness * sheen_roughness,
+            tint:  color(1.0),
+            multiscatter_tint: color(1.0),
+            multiscatter: dielectric_component
+        ),
+        base: dielectric_component);
+
+    // final BSDF is a linear blend between dielectric and metallic component
+    bsdf dielectric_metal_mix = df::weighted_layer(
+        weight: metallic,
+        base: dielectric_sheen_component,
+        layer: metallic_component,
+        normal: normal);
+
+    bsdf clearcoated = df::custom_curve_layer(
+        weight: clearcoat_blend,
+        normal_reflectivity: 0.04,
+        grazing_reflectivity: grazing_refl_coat,
+        layer: df::microfacet_ggx_vcavities_bsdf(
+            mode: df::scatter_reflect,
+            roughness_u: clearcoat_roughness2,
+            tint: color(1.0)),
+        base: df::weighted_layer(
+            weight: 1.0,
+            layer: dielectric_metal_mix,
+            normal: normal),
+        normal: clearcoat_normal);
+
+} in material(
+    thin_walled: thin_walled,
+    surface: material_surface(
+        scattering: clearcoated,
+        emission:  material_emission (
+            emission: df::diffuse_edf(),
+            intensity: emissive_color * ::math::PI
+        )
+    ),
+    volume: material_volume(
+        absorption_coefficient: thin_walled ? color(0.0) : (attenuation_distance == 0) ? color(0.0) : -math::log(attenuation_color) / attenuation_distance
+    ),
+    ior: color(ior),
+    geometry: material_geometry(
+        cutout_opacity: compute_opacity(alpha_mode, alpha, alpha_cutoff) 
+    )
+);
+
+
+export material gltf_material_khr_specular_glossiness(
+    // diffuse color
+    uniform color diffuse_factor = color(1.0)
+    [[
+        anno::in_group("PBR Specular Glossiness"),
+        anno::display_name("Diffuse Factor"),
+        anno::description("The diffuse color of the material. Multiplied to the 'Diffuse Texture' if available.")
+    ]],
+    gltf_texture_lookup_value diffuse_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("PBR Specular Glossiness"),
+        anno::display_name("Diffuse Texture"),
+        anno::description("The diffuse color of the material. Influenced by the 'Diffuse Factor'.")
+    ]],
+
+    // specular glossiness
+    uniform color specular_factor = 1.0
+    [[
+        anno::in_group("PBR Specular Glossiness"),
+        anno::display_name("Specular Factor"),
+        anno::description("The specular color of the material. Multiplied to the rgb values of the 'Specular/Glossy Texture' if available.")
+    ]],
+    uniform float glossiness_factor = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("PBR Specular Glossiness"),
+        anno::display_name("Glossiness Factor"),
+        anno::description("The glossiness of the material. Select between diffuse (0.0) and nearly specular (1.0). Multiplied to the alpha value of the 'Specular/Glossy Texture' if available.")
+    ]],
+    gltf_texture_lookup_value specular_glossiness_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("PBR Specular Glossiness"),
+        anno::display_name("Specular/Glossy Texture"),
+        anno::description("The specular-glossiness texture. Influenced by the 'Specular Factor' and 'Glossiness Factor'.")
+    ]],
+
+    // normal map
+    gltf_normal_texture_lookup_value normal_texture = gltf_normal_texture_lookup()
+    [[
+        anno::in_group("Normal Mapping"),
+        anno::display_name("Normal Texture"),
+        anno::description("Base layer normal map.")
+    ]],
+    
+    // emission
+    uniform color emissive_factor = color(0.0)
+    [[
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Factor"),
+        anno::description("The emissive color of the material. Multiplied to the 'Emissive Texture' if available.")
+    ]],
+    gltf_texture_lookup_value emissive_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Texture"),
+        anno::description("The emissive map texture. Influenced by the 'Emissive Factor'."),
+        anno::enable_if("::math::average(emissive_factor)>0.0")
+    ]],
+    // KHR_materials_emissive_strength
+    uniform float emissive_strength = 1.0
+    [[
+        anno::soft_range(0.0, 10000),
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Strength"),
+        anno::description("The maximum strength of the emissive texture. Multiplied to the 'Emissive Factor'."),
+        anno::enable_if("::math::average(emissive_factor)>0.0")
+    ]],
+
+    // ambient occlusion
+    gltf_texture_lookup_value occlusion_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Occlusion"),
+        anno::display_name("Occlusion Texture"),
+        anno::description("The occlusion map texture. Influenced by the 'Occlusion Strength'.")
+    ]],
+    uniform float occlusion_strength = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Occlusion"),
+        anno::display_name("Occlusion Strength"),
+        anno::description("A scalar multiplier controlling the amount of occlusion applied. Multiplied to the 'Occlusion Texture'.")
+    ]],
+
+    // alpha
+    uniform gltf_alpha_mode alpha_mode = opaque
+    [[
+        anno::in_group("Opacity"),
+        anno::display_name("Alpha Mode"),
+        anno::description("Select how to interpret the alpha value.")
+    ]],
+    uniform float base_alpha = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Opacity"),
+        anno::display_name("Base Alpha"),
+        anno::description("Select between transparent (0.0) and opaque (1.0). Multiplied to the base color texture alpha channel if available."),
+        anno::enable_if("alpha_mode!=opaque")
+    ]],
+    // alpha for gltf_alpha_mode::mask
+    
+    uniform float alpha_cutoff = 0.5
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Opacity"),
+        anno::display_name("Alpha Cutoff"),
+        anno::description("Threshold to decide between fully transparent and fully opaque when alpha mode is 'mask'."),
+        anno::enable_if("alpha_mode==mask")
+    ]],
+
+    uniform string vertex_color_name_spec = string("displayColor")
+    [[
+        anno::in_group("Primvar"),
+        anno::display_name("Vertex Color Name"),
+        anno::description("Name of the vertex color primvar usually COLOR_0 'gltf', or displayColor 'usd'.")
+    ]],
+
+    uniform bool use_vertex_color_alpha_spec = false 
+    [[ 
+        anno::in_group("Primvar"),
+        anno::display_name("Use Opacity Channel From Vertex Color"),
+        anno::description("Multipy the Alpha or .w channel from the vertex color with the base alpha value.")
+    ]],
+
+    uniform string vertex_opacity_name_spec = string("displayOpacity")
+    [[
+        anno::in_group("Primvar"),
+        anno::display_name("Vertex Opacity Name"),
+        anno::description("Name of the vertex color primvar usually the .w component of COLOR_0 'gltf', or displayOpacity 'usd'.")
+    ]]
+
+) [[
+    anno::author("NVIDIA Corporation"),
+    anno::display_name("GLTF Material - Specular-Glossiness"),
+    anno::description("Specular-Glossiness Material that takes the GLTF KHR extension parameters as input.")
+]] = let {
+
+    // handling GLTF parameters
+    // ------------------------------------------------------------------------
+    float4 diffuse_float4 = gltf_prepare_tex_float4(diffuse_texture) * ::scene::data_lookup_float4(vertex_color_name_spec, float4(1.0)); // apply vertex color
+    color diffuse = diffuse_factor * color(diffuse_float4.x, diffuse_float4.y, diffuse_float4.z);
+
+    float alpha = base_alpha * (use_vertex_color_alpha_spec == 1 ? diffuse_float4.w : 1.0)  * ((vertex_color_name_spec != vertex_opacity_name_spec) ? ::scene::data_lookup_float(vertex_opacity_name_spec, float(1.0)) : 1.0);
+    //float alpha = base_alpha;
+    float4 specular_glossiness = gltf_prepare_tex_float4(specular_glossiness_texture);
+    color specular = specular_factor * color(specular_glossiness.x, specular_glossiness.y, specular_glossiness.z);
+    float glossiness = glossiness_factor * specular_glossiness.w;
+
+    float3 normal = gltf_prepare_normal(normal_texture);
+    float occlusion = gltf_prepare_occlusion(occlusion_texture, occlusion_strength);
+    color emissive_color = gltf_perpare_emission(emissive_texture, emissive_factor * math::max(0.0f, emissive_strength));
+
+    // specular glossiness model
+    // ------------------------------------------------------------------------
+
+    //color c_diff = diffuse * (1.0 - math::maxvalue(specular));
+    float F_0 = math::max_value(specular);
+    color F_0_tint = F_0==0.0? color(0.0) : (specular/F_0); 
+
+    float a = (1.0 - glossiness) * (1.0 - glossiness);
+
+	// diffuse BRDF
+	bsdf diffuse_brdf = df::diffuse_reflection_bsdf(
+        tint: diffuse * occlusion, 
+        roughness: 0.0);
+
+	// specular BRDF
+	bsdf specular_brdf = df::microfacet_ggx_smith_bsdf(
+        tint: color(occlusion),
+	    roughness_u: a, 
+        roughness_v: a, 
+        tangent_u: state::texture_tangent_u(0));
+	bsdf tinted_specular =  df::directional_factor(normal_tint: F_0_tint, grazing_tint: color(1.0), exponent: 5.0, base: specular_brdf);
+	//- Custom curve for specular/diffuse angular mix
+	bsdf diffuse_specular_mix = df::custom_curve_layer(
+        normal_reflectivity: F_0, 
+        grazing_reflectivity: 1.0, 
+        exponent: 5.0, 
+		weight: 1.0, 
+        layer: tinted_specular, 
+        base: diffuse_brdf, 
+        normal: normal);
+
+} in material(
+    surface: material_surface(
+        scattering: diffuse_specular_mix,
+        emission:  material_emission (
+            emission: df::diffuse_edf(),
+            intensity: emissive_color * ::math::PI
+        )
+    ),
+    geometry: material_geometry(
+        normal: normal,
+        cutout_opacity: compute_opacity(alpha_mode, alpha, alpha_cutoff) 
+    )
+);

saved/assets/miscs/curobo/R5a/LICENSE.curobo

@@ -0,0 +1,77 @@
+Copyright (c) 2023 NVIDIA CORPORATION & AFFILIATES.  All rights reserved.
+
+
+NVIDIA License
+
+1. Definitions
+
+“Licensor” means any person or entity that distributes its Work.
+“Work” means (a) the original work of authorship made available under this license, which may 
+include software, documentation, or other files, and (b) any additions to or derivative works  
+thereof  that are made available under this license.
+The terms “reproduce,” “reproduction,” “derivative works,” and “distribution” have the meaning as 
+provided under U.S. copyright law; provided, however, that for the purposes of this license, 
+derivative works shall not include works that remain separable from, or merely link (or bind by 
+name) to the interfaces of, the Work.
+
+Works are “made available” under this license by including in or with the Work either (a) a 
+copyright notice referencing the applicability of this license to the Work, or (b) a copy of 
+this license.
+
+2. License Grant
+
+2.1 Copyright Grant. Subject to the terms and conditions of this license, each Licensor grants to 
+you a perpetual, worldwide, non-exclusive, royalty-free, copyright license to use, reproduce, 
+prepare derivative works of, publicly display, publicly perform, sublicense and distribute its Work
+and any resulting derivative works in any form.
+
+3. Limitations
+
+3.1 Redistribution. You may reproduce or distribute the Work only if (a) you do so under this 
+license, (b) you include a complete copy of this license with your distribution, and (c) you retain 
+without modification any copyright, patent, trademark, or attribution notices that are present in 
+the Work.
+
+3.2 Derivative Works. You may specify that additional or different terms apply to the use, 
+reproduction, and distribution of your derivative works of the Work (“Your Terms”) only if (a) 
+Your Terms provide that the use limitation in Section 3.3 applies to your derivative works, and (b) 
+you identify the specific derivative works that are subject to Your Terms. Notwithstanding Your 
+Terms, this license (including the redistribution requirements in Section 3.1) will continue to 
+apply to the Work itself.
+
+3.3 Use Limitation. The Work and any derivative works thereof only may be used or intended for 
+use non-commercially. Notwithstanding the foregoing, NVIDIA Corporation and its affiliates may use 
+the Work and any derivative works commercially. As used herein, “non-commercially” means for 
+research or evaluation purposes only.
+
+3.4 Patent Claims. If you bring or threaten to bring a patent claim against any Licensor (including
+any claim, cross-claim or counterclaim in a lawsuit) to enforce any patents that you allege are 
+infringed by any Work, then your rights under this license from such Licensor (including the grant 
+in Section 2.1) will terminate immediately.
+
+3.5 Trademarks. This license does not grant any rights to use any Licensor’s or its affiliates’ 
+names, logos, or trademarks, except as necessary to reproduce the notices described in this license.
+
+3.6 Termination. If you violate any term of this license, then your rights under this license 
+(including the grant in Section 2.1) will terminate immediately.
+
+4. Disclaimer of Warranty.
+
+THE WORK IS PROVIDED “AS IS” WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR 
+IMPLIED, INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, 
+TITLE OR NON-INFRINGEMENT. YOU BEAR THE RISK OF UNDERTAKING ANY ACTIVITIES UNDER THIS LICENSE. 
+
+5. Limitation of Liability.
+
+EXCEPT AS PROHIBITED BY APPLICABLE LAW, IN NO EVENT AND UNDER NO LEGAL THEORY, WHETHER IN TORT 
+(INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE SHALL ANY LICENSOR BE LIABLE TO YOU FOR DAMAGES, 
+INCLUDING ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT OF OR 
+RELATED TO THIS LICENSE, THE USE OR INABILITY TO USE THE WORK (INCLUDING BUT NOT LIMITED TO LOSS OF
+GOODWILL, BUSINESS INTERRUPTION, LOST PROFITS OR DATA, COMPUTER FAILURE OR MALFUNCTION, OR ANY OTHER
+DAMAGES OR LOSSES), EVEN IF THE LICENSOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+****************************************************************************************************
+
+This package contains examples that use external assets (urdf and mesh files). Licenses for external
+assets are listed in LICENSE_ASSETS.
+

saved/assets/miscs/curobo/R5a/NOTICE.md

@@ -0,0 +1 @@
+The r5a_left_arm.yml planner configuration retains its NVIDIA cuRobo template notice and is distributed subject to LICENSE.curobo (research/evaluation use). Robot-specific parameters, URDF and meshes were supplied by the AI Lab team. The simulator and cuRobo implementation are not bundled.

saved/assets/miscs/curobo/R5a/R5a.urdf

@@ -0,0 +1,511 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- This URDF was automatically created by SolidWorks to URDF Exporter! Originally created by Stephen Brawner (brawner@gmail.com) 
+     Commit Version: 1.6.0-4-g7f85cfe  Build Version: 1.6.7995.38578
+     For more information, please see http://wiki.ros.org/sw_urdf_exporter -->
+<robot
+  name="R5a">
+  <link
+    name="base_link">
+    <inertial>
+      <origin
+        xyz="-0.00013359 6.672E-05 0.031672"
+        rpy="0 0 0" />
+      <mass
+        value="0.42272" />
+      <inertia
+        ixx="0.00019"
+        ixy="0.00000"
+        ixz="0.00000"
+        iyy="0.00019"
+        iyz="0.00000"
+        izz="0.00020" />
+    </inertial>
+    <visual>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/base_link.STL" />
+      </geometry>
+      <material
+        name="">
+        <color
+          rgba="0.89804 0.91765 0.92941 1" />
+      </material>
+    </visual>
+    <collision>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/base_link.STL" />
+      </geometry>
+    </collision>
+  </link>
+  <link
+    name="link1">
+    <inertial>
+      <origin
+        xyz="0.0050395 -0.0077407 0.020897"
+        rpy="0 0 0" />
+      <mass
+        value="0.096804" />
+      <inertia
+        ixx="0.00011"
+        ixy="-0.00001"
+        ixz="0.00001"
+        iyy="0.00005"
+        iyz="-0.00001"
+        izz="0.00010" />
+    </inertial>
+    <visual>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/link1.STL" />
+      </geometry>
+      <material
+        name="">
+        <color
+          rgba="0.56471 0.56471 0.56471 1" />
+      </material>
+    </visual>
+    <collision>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/link1.STL" />
+      </geometry>
+    </collision>
+  </link>
+  <joint
+    name="joint1"
+    type="revolute">
+    <origin
+      xyz="0 0 0.0565"
+      rpy="0 0 0" />
+    <parent
+      link="base_link" />
+    <child
+      link="link1" />
+    <axis
+      xyz="0 0 1" />
+    <limit
+      lower="-2.094"
+      upper="3.1416"
+      effort="100"
+      velocity="1000" />
+  </joint>
+  <link
+    name="link2">
+    <inertial>
+      <origin
+        xyz="-0.12992 -0.0011822 -2.6366E-05"
+        rpy="0 0 0" />
+      <mass
+        value="1.1988" />
+      <inertia
+        ixx="0.00065"
+        ixy="0.00008"
+        ixz="0.00000"
+        iyy="0.01647"
+        iyz="0.00000"
+        izz="0.01646" />
+    </inertial>
+    <visual>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/link2.STL" />
+      </geometry>
+      <material
+        name="">
+        <color
+          rgba="0.79216 0.81961 0.93333 1" />
+      </material>
+    </visual>
+    <collision>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/link2.STL" />
+      </geometry>
+    </collision>
+  </link>
+  <joint
+    name="joint2"
+    type="revolute">
+    <origin
+      xyz="0.02 0 0.047"
+      rpy="0 0 0" />
+    <parent
+      link="link1" />
+    <child
+      link="link2" />
+    <axis
+      xyz="0 1 0" />
+    <limit
+      lower="-0.1"
+      upper="3.665"
+      effort="100"
+      velocity="1000" />
+  </joint>
+  <link
+    name="link3">
+    <inertial>
+      <origin
+        xyz="0.16181 0.0011723 -0.05455"
+        rpy="0 0 0" />
+      <mass
+        value="0.84082" />
+      <inertia
+        ixx="0.00082"
+        ixy="0.00008"
+        ixz="-0.00074"
+        iyy="0.00849"
+        iyz="0.00001"
+        izz="0.00834" />
+    </inertial>
+    <visual>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/link3.STL" />
+      </geometry>
+      <material
+        name="">
+        <color
+          rgba="0.89804 0.91765 0.92941 1" />
+      </material>
+    </visual>
+    <collision>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/link3.STL" />
+      </geometry>
+    </collision>
+  </link>
+  <joint
+    name="joint3"
+    type="revolute">
+    <origin
+      xyz="-0.264 0 0"
+      rpy="-3.1416 0 0" />
+    <parent
+      link="link2" />
+    <child
+      link="link3" />
+    <axis
+      xyz="0 1 0" />
+    <limit
+      lower="-0.1"
+      upper="3.24"
+      effort="100"
+      velocity="1000" />
+  </joint>
+  <link
+    name="link4">
+    <inertial>
+      <origin
+        xyz="0.041751 0.0054236 -0.03337"
+        rpy="0 0 0" />
+      <mass
+        value="0.12432" />
+      <inertia
+        ixx="0.00022"
+        ixy="-0.00002"
+        ixz="-0.00009"
+        iyy="0.00025"
+        iyz="0.00002"
+        izz="0.00017" />
+    </inertial>
+    <visual>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/link4.STL" />
+      </geometry>
+      <material
+        name="">
+        <color
+          rgba="0.79216 0.81961 0.93333 1" />
+      </material>
+    </visual>
+    <collision>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/link4.STL" />
+      </geometry>
+    </collision>
+  </link>
+  <joint
+    name="joint4"
+    type="revolute">
+    <origin
+      xyz="0.245 -5E-05 -0.06"
+      rpy="0 0 0" />
+    <parent
+      link="link3" />
+    <child
+      link="link4" />
+    <axis
+      xyz="0 1 0" />
+    <limit
+      lower="-1.671"
+      upper="1.671"
+      effort="100"
+      velocity="1000" />
+  </joint>
+  <link
+    name="link5">
+    <inertial>
+      <origin
+        xyz="-8.3435E-05 -1.5428E-05 0.052216"
+        rpy="0 0 0" />
+      <mass
+        value="0.63601" />
+      <inertia
+        ixx="0.00084"
+        ixy="0.00000"
+        ixz="0.00007"
+        iyy="0.00082"
+        iyz="0.00000"
+        izz="0.00026" />
+    </inertial>
+    <visual>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/link5.STL" />
+      </geometry>
+      <material
+        name="">
+        <color
+          rgba="0.69804 0.69804 0.69804 1" />
+      </material>
+    </visual>
+    <collision>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/link5.STL" />
+      </geometry>
+    </collision>
+  </link>
+  <joint
+    name="joint5"
+    type="revolute">
+    <origin
+      xyz="0.073914 5E-05 -0.083391"
+      rpy="0 0 0" />
+    <parent
+      link="link4" />
+    <child
+      link="link5" />
+    <axis
+      xyz="0 0 1" />
+    <limit
+      lower="-1.671"
+      upper="1.671"
+      effort="100"
+      velocity="1000" />
+  </joint>
+  <link
+    name="link6">
+    <inertial>
+      <origin
+        xyz="0.041697 2.4368E-05 0.00014464"
+        rpy="0 0 0" />
+      <mass
+        value="0.44089" />
+      <inertia
+        ixx="0.00038"
+        ixy="0.00000"
+        ixz="0.00000"
+        iyy="0.00028"
+        iyz="0.00000"
+        izz="0.00050" />
+    </inertial>
+    <visual>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/link6.STL" />
+      </geometry>
+      <material
+        name="">
+        <color
+          rgba="0.89804 0.91765 0.92941 1" />
+      </material>
+    </visual>
+    <collision>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/link6.STL" />
+      </geometry>
+    </collision>
+  </link>
+  <joint
+    name="joint6"
+    type="revolute">
+    <origin
+      xyz="0.025286 0 0.083391"
+      rpy="3.1416 0 0" />
+    <parent
+      link="link5" />
+    <child
+      link="link6" />
+    <axis
+      xyz="1 0 0" />
+    <limit
+      lower="-2.094"
+      upper="2.094"
+      effort="100"
+      velocity="1000" />
+  </joint>
+  <link
+    name="link7">
+    <inertial>
+      <origin
+        xyz="-0.00035522 -0.007827 -0.0029883"
+        rpy="0 0 0" />
+      <mass
+        value="0.064798" />
+      <inertia
+        ixx="0.00002"
+        ixy="0.00000"
+        ixz="0.00000"
+        iyy="0.00003"
+        iyz="0.00000"
+        izz="0.00003" />
+    </inertial>
+    <visual>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/link7.STL" />
+      </geometry>
+      <material
+        name="">
+        <color
+          rgba="1 1 1 1" />
+      </material>
+    </visual>
+    <collision>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/link7.STL" />
+      </geometry>
+    </collision>
+  </link>
+  <joint
+    name="joint7"
+    type="prismatic">
+    <origin
+      xyz="0.08657 0.024896 -0.0002436"
+      rpy="0 0 0" />
+    <parent
+      link="link6" />
+    <child
+      link="link7" />
+    <axis
+      xyz="0 1 0" />
+    <limit
+      lower="0"
+      upper="0.044"
+      effort="100"
+      velocity="1000" />
+  </joint>
+  <link
+    name="link8">
+    <inertial>
+      <origin
+        xyz="-0.000355223470270755 0.00782768751820277 0.00242005642879778"
+        rpy="0 0 0" />
+      <mass
+        value="0.0647981725781684" />
+      <inertia
+        ixx="0.00002"
+        ixy="0.00000"
+        ixz="0.00000"
+        iyy="0.00003"
+        iyz="0.00000"
+        izz="0.00003" />
+    </inertial>
+    <visual>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/link8.STL" />
+      </geometry>
+      <material
+        name="">
+        <color
+          rgba="1 1 1 1" />
+      </material>
+    </visual>
+    <collision>
+      <origin
+        xyz="0 0 0"
+        rpy="0 0 0" />
+      <geometry>
+        <mesh
+          filename="meshes/link8.STL" />
+      </geometry>
+    </collision>
+  </link>
+  <joint
+    name="joint8"
+    type="prismatic">
+    <origin
+      xyz="0.08657 -0.0249 -0.00024366"
+      rpy="0 0 0" />
+    <parent
+      link="link6" />
+    <child
+      link="link8" />
+    <axis
+      xyz="0 -1 0" />
+    <limit
+      lower="0"
+      upper="0.044"
+      effort="100"
+      velocity="1000" />
+  </joint>
+</robot>

saved/assets/miscs/curobo/R5a/r5a_left_arm.yml

@@ -0,0 +1,152 @@
+      
+##
+## Copyright (c) 2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+##
+## NVIDIA CORPORATION, its affiliates and licensors retain all intellectual
+## property and proprietary rights in and to this material, related
+## documentation and any modifications thereto. Any use, reproduction,
+## disclosure or distribution of this material and related documentation
+## without an express license agreement from NVIDIA CORPORATION or
+## its affiliates is strictly prohibited.
+##
+
+robot_cfg:
+  kinematics:
+    usd_path: "${ASSETS_DIR}/miscs/curobo/R5a/R5a/R5a.usd"
+    usd_robot_root: "/robot"
+    isaac_usd_path: ""
+    usd_flip_joints: {}
+    usd_flip_joint_limits: []
+
+    urdf_path: "${ASSETS_DIR}/miscs/curobo/R5a/R5a.urdf"
+    asset_root_path: "robot"
+
+    base_link: "base_link"
+    ee_link: "link6"
+
+    extra_links: {"attached_object":{"parent_link_name": "link6" ,
+    "link_name": "attached_object", "fixed_transform": [0,0,0,1,0,0,0], "joint_type":"FIXED",
+    "joint_name": "attach_joint" }}
+
+
+    collision_link_names:
+      [
+        "base_link",
+        "link1",
+        "link2",
+        "link3",
+        "link4",
+        "link5",
+        "link6",
+        "link7",
+        "link8",
+        "attached_object",
+      ]
+    collision_spheres:
+      link1:
+        - "center": [-0.002, 0.003, 0.037]
+          "radius": 0.02
+      base_link:
+        - "center": [-0.003, -0.0, 0.036]
+          "radius": 0.02
+      link2:
+        - "center": [-0.008, 0.0, -0.001]
+          "radius": 0.02929
+        - "center": [-0.264, -0.001, 0.01]
+          "radius": 0.02864
+        - "center": [-0.272, 0.003, -0.009]
+          "radius": 0.02602
+        - "center": [-0.178, 0.002, -0.002]
+          "radius": 0.02733
+        - "center": [-0.1, -0.003, -0.005]
+          "radius": 0.0208
+      link3:
+        - "center": [0.025, 0.001, -0.063]
+          "radius": 0.02861
+        - "center": [0.085, -0.003, -0.062]
+          "radius": 0.02274
+        - "center": [0.165, -0.008, -0.057]
+          "radius": 0.02144
+        - "center": [-0.005, -0.019, -0.014]
+          "radius": 0.02013
+        - "center": [0.091, -0.004, -0.072]
+          "radius": 0.01883
+        - "center": [0.239, 0.012, -0.073]
+          "radius": 0.01883
+      link4:
+        - "center": [0.016, -0.001, 0.001]
+          "radius": 0.02437
+        - "center": [0.071, 0.003, -0.052]
+          "radius": 0.02302
+      link5:
+        - "center": [-0.002, 0.006, 0.021]
+          "radius": 0.02754
+        - "center": [0.003, 0.009, 0.08]
+          "radius": 0.02697
+      link6:
+        - "center": [0.055, 0.001, -0.001]
+          "radius": 0.02822
+        - "center": [0.035, -0.001, -0.0]
+          "radius": 0.02587
+      link7:
+        - "center": [0.036, -0.015, -0.006]
+          "radius": 0.0137
+        - "center": [-0.007, -0.003, -0.011]
+          "radius": 0.0137
+      link8:
+        - "center": [0.039, 0.016, -0.005]
+          "radius": 0.0137
+        - "center": [-0.007, 0.002, -0.009]
+          "radius": 0.0137
+    collision_sphere_buffer: 0.004
+    extra_collision_spheres: {"attached_object": 4}
+    self_collision_ignore:
+      {
+        "base_link": ["link1", "link2", "link3", "link4", "link5", "link6", "link7", "link8", "attached_object"],
+        "link1": ["link2", "link3", "link4", "link5", "link6", "link7", "link8", "attached_object"],
+        "link2": ["link3", "link4", "link5", "link6", "link7", "link8", "attached_object"],
+        "link3": ["link4", "link5", "link6", "link7", "link8", "attached_object"],
+        "link4": ["link5", "link6", "link7", "link8", "attached_object"],
+        "link5": ["link6", "link7", "link8", "attached_object"],
+        "link6": ["link7", "link8", "attached_object"],
+        "link7": ["link8", "attached_object"]
+      }
+    self_collision_buffer:
+      {
+        "base_link": 0.1,
+        "link1": 0.05,
+        "link2": 0.05,
+        "link3": 0.05,
+        "link4": 0.05,
+        "link5": 0.05,
+        "link6": 0.05,
+        "link7": 0.02,
+        "link8": 0.02,
+        "attached_object": 0.0,
+      }
+    use_global_cumul: True
+    mesh_link_names:
+      [
+        "base_link",
+        "link1",
+        "link2",
+        "link3",
+        "link4",
+        "link5",
+        "link6",
+        "link7",
+        "link8"
+      ]
+    external_asset_path: null # Use this to add path for externally located assets/robot folder.
+    lock_joints: {"joint7": 0.044, "joint8": 0.044}
+
+    cspace:
+      joint_names: ["joint1","joint2","joint3","joint4", "joint5", "joint6","joint7","joint8"]
+      # retract_config: [0.0, 0.35, -0.35, 0.0, 0.0, 0.0, 0.0, 0.0]
+      retract_config: [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0]
+      null_space_weight: [1,1,1,1,1,1,1,1]
+      cspace_distance_weight: [1,1,1,1,1,1,1,1]
+      max_acceleration: 15.0
+      max_jerk: 500.0
+
+    

saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/SubUSDs/materials/OmniGlass.mdl

@@ -0,0 +1,238 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+mdl 1.4;
+import ::anno::*;
+import ::base::*;
+
+using OmniGlass_Opacity import OmniGlass_Opacity;
+export annotation distill_off();
+
+export material OmniGlass(
+	color absorption_coeff = color(0.f, 0.f, 0.f)  // hiding this parameter as it does not exist in the new material
+	[[
+		anno::hidden(),
+		anno::unused()
+	]],
+	uniform bool use_glass_color_texture = false
+	[[
+		anno::hidden(),
+		anno::unused()
+	]],
+	uniform color glass_color = color(1.f, 1.f, 1.f) [[
+		anno::display_name("Glass Color"),
+		anno::description("Sets the color of the glass"),
+		anno::hard_range(color(0.0), color(1.0)),
+		anno::in_group("Color")
+	]],
+	uniform texture_2d glass_color_texture = texture_2d() [[
+		anno::display_name("Glass Color Texture"),
+		anno::description("Specifies the texture to be used for the glass color of the material"),
+		anno::in_group("Color")
+	]],
+	float frosting_roughness = 0.f [[
+		anno::display_name("Glass Roughness"),
+		anno::description("Sets the roughness of the glass material "),
+		anno::hard_range(0.0, 1.0),
+		anno::in_group("Roughness")
+	]],
+	uniform float glass_ior = 1.491f [[
+		anno::display_name("Glass IOR"),
+		anno::description("Sets IOR of the glass material "),
+		anno::soft_range(1.0f, 4.0f),
+		anno::in_group("Refraction")
+	]],
+	uniform bool thin_walled = false [[
+		anno::display_name("Thin Walled"),
+		anno::description("When enabled, the material is considered thin-walled. Use this, when you have glass surfaces that are modeled with a single plane"),
+		anno::in_group("Refraction")
+	]],
+	
+	// NEW PARAMETERS
+	uniform float depth = 0.001f [[	
+		anno::description("Controls how much light is absorbed through the surface"),
+		anno::display_name("Volume Absorption Scale"),
+		anno::in_group("Color"),
+		anno::soft_range(0.f, 1.f),
+		anno::hard_range(0.f, 1000.f)
+	]],
+	float roughness_texture_influence = 1.f [[
+		anno::display_name("Roughness Texture Influence"),
+		anno::in_group("Roughness"),
+		anno::hard_range(0.0f, 1.0f)
+	]],
+	uniform texture_2d roughness_texture = texture_2d() [[
+		anno::description("The roughness texture"),
+		anno::display_name("Roughness Texture"),
+		anno::in_group("Roughness"),
+		anno::usage("roughness")
+	]],
+	uniform texture_2d reflection_color_texture = texture_2d() [[
+		anno::description("The reflection color texture"),
+		anno::display_name("Reflection Color Texture"),
+		anno::in_group("Reflection")
+	]],
+	uniform color reflection_color = color(1.f, 1.f, 1.f) [[
+		anno::display_name("Reflection Color"),
+		anno::in_group("Reflection")
+	]],
+	uniform texture_2d normal_map_texture = texture_2d() [[
+		anno::description("The normal map texture"),
+		anno::display_name("Normal Map Texture"),
+		anno::in_group("Normal"),
+		anno::usage("normal")
+	]],
+	uniform float normal_map_strength = 1.0 [[
+		anno::description("Determines the degree of bumpiness"),
+		anno::display_name("Normal Map Strength"),
+		anno::in_group("Normal"),
+		anno::usage(""),
+		anno::soft_range(0.f, 1.f)
+	]],
+	uniform bool flip_tangent_u = false  [[
+        anno::display_name("Normal Map Flip U Tangent"),
+        anno::in_group("Normal")
+    ]],
+	uniform bool flip_tangent_v = true [[
+        anno::display_name("Normal Map Flip V Tangent"),
+        anno::in_group("Normal")
+    ]],
+
+	// Cutout Opacity
+	uniform bool enable_opacity = false
+	[[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+	uniform float cutout_opacity = 1.0f [[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Amount"),
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity")
+	]],	
+	uniform texture_2d cutout_opacity_texture = texture_2d() [[
+		anno::description("The opacity map"),
+		anno::display_name("Opacity Map"),
+		anno::in_group("Opacity"),
+		anno::usage("opacity")
+	]],
+	uniform base::mono_mode cutout_opacity_mono_source = base::mono_alpha [[
+		anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum"),
+		anno::display_name("Opacity Mono Source"),
+		anno::in_group("Opacity"),
+		anno::usage("")
+	]],
+	uniform float opacity_threshold = 0.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Threshold"),
+		anno::description("If negative, disable cutout_opacity; if 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity")
+	]],
+
+	//
+	// End of new
+	//
+	// UV Projection Group
+	//
+	uniform bool project_uvw = false
+	[[
+		anno::display_name("Enable Project UVW Coordinates"),
+		anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+		anno::in_group("UV")
+	]],
+	uniform bool world_or_object = false
+	[[
+		anno::display_name("Enable World Space"),
+		anno::description("When set to 'true' uses world space for projection, when 'false' object space is used"),
+		anno::in_group("UV")
+	]],
+	
+	// UV Space selector
+	uniform int uv_space_index =  0
+	[[
+		anno::display_name("UV Space Index"),
+		anno::description("Choose the UV Space Index to be used"),
+		anno::in_group("UV"),
+		anno::hard_range(0, 3)
+	]],
+	uniform float2 texture_translate =  float2(0.0f)
+	[[
+		anno::display_name("Texture Translate"),
+		anno::description("Controls the position of the texture."),
+		anno::in_group("UV")
+	]],
+	uniform float texture_rotate =  0.f
+	[[
+		anno::display_name("Texture Rotate"),
+		anno::description("Rotates angle of the texture in degrees."),
+		anno::in_group("UV")
+	]],
+	uniform float2 texture_scale =  float2(1.0f)
+	[[
+		anno::display_name("Texture Tiling"),
+		anno::description("Controls repetition of the texture."),
+		anno::in_group("UV")
+	]])
+[[ 
+	anno::author("NVIDIA CORPORATION"),
+	anno::display_name("Omni Glass"),
+	anno::version( 1, 0, 0),
+ 	anno::in_group("Base"),
+	anno::description("Omni Glass Material V2"),
+	anno::key_words(string[]("omni", "omniverse", "glass", "transparent", "window", "transparency", "workflow")),
+	distill_off()
+]]
+ = OmniGlass_Opacity(
+	glass_color: glass_color,
+	glass_color_texture: glass_color_texture,
+	frosting_roughness: frosting_roughness,
+	glass_ior: glass_ior,
+	thin_walled: thin_walled,
+	depth: depth,
+	roughness_texture_influence: roughness_texture_influence,
+	roughness_texture: roughness_texture,
+	reflection_color_texture: reflection_color_texture,
+	reflection_color: reflection_color,
+	normal_map_texture: normal_map_texture,
+	normal_map_strength: normal_map_strength,
+	flip_tangent_u: flip_tangent_u,
+	flip_tangent_v: flip_tangent_v,
+	enable_opacity: enable_opacity,
+	cutout_opacity: cutout_opacity,
+	cutout_opacity_texture: cutout_opacity_texture,
+	cutout_opacity_mono_source: cutout_opacity_mono_source,
+	opacity_threshold: opacity_threshold,
+	project_uvw: project_uvw,
+	world_or_object: world_or_object,
+	uv_space_index:  uv_space_index,
+	texture_translate:  texture_translate,
+	texture_rotate:  texture_rotate,
+	texture_scale:  texture_scale
+	);

saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/SubUSDs/materials/OmniGlass_1.mdl

@@ -0,0 +1,260 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+mdl 1.4;
+import ::anno::*;
+import ::base::*;
+
+using OmniGlass_Opacity_1 import OmniGlass_Opacity;
+export annotation distill_off();
+
+
+export material OmniGlass
+(
+    color absorption_coeff = color(0.f, 0.f, 0.f)  // hiding this parameter as it does not exist in the new material
+    [[
+        anno::hidden(),
+        anno::unused()
+    ]],
+    uniform bool use_glass_color_texture = false
+    [[
+        anno::hidden(),
+        anno::unused()
+    ]],
+    uniform color glass_color = color(1.f, 1.f, 1.f)
+    [[
+        anno::display_name("Glass Color"),
+        anno::description("Sets the color of the glass"),
+        anno::hard_range(color(0.0), color(1.0)),
+        anno::in_group("Color")
+    ]],
+    uniform texture_2d glass_color_texture = texture_2d()
+    [[
+        anno::display_name("Glass Color Texture"),
+        anno::description("Specifies the texture to be used for the glass color of the material"),
+        anno::in_group("Color")
+    ]],
+    float frosting_roughness = 0.f
+    [[
+        anno::display_name("Glass Roughness"),
+        anno::description("Sets the roughness of the glass material "),
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Roughness")
+    ]],
+    uniform float glass_ior = 1.491f
+    [[
+        anno::display_name("Glass IOR"),
+        anno::description("Sets IOR of the glass material "),
+        anno::soft_range(1.0f, 4.0f),
+        anno::in_group("Refraction")
+    ]],
+    uniform bool thin_walled = false
+    [[
+        anno::display_name("Thin Walled"),
+        anno::description("When enabled, the material is considered thin-walled. Use this, when you have glass surfaces that are modeled with a single plane"),
+        anno::in_group("Refraction")
+    ]],
+    uniform float depth = 0.001f
+    [[
+        anno::description("Controls how much light is absorbed through the surface"),
+        anno::display_name("Volume Absorption Scale"),
+        anno::in_group("Color"),
+        anno::soft_range(0.f, 1.f),
+        anno::hard_range(0.f, 1000.f)
+    ]],
+    float roughness_texture_influence = 1.f
+    [[
+        anno::display_name("Roughness Texture Influence"),
+        anno::in_group("Roughness"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+    uniform texture_2d roughness_texture = texture_2d()
+    [[
+        anno::description("The roughness texture"),
+        anno::display_name("Roughness Texture"),
+        anno::in_group("Roughness"),
+        anno::usage("roughness")
+    ]],
+    uniform texture_2d reflection_color_texture = texture_2d()
+    [[
+        anno::description("The reflection color texture"),
+        anno::display_name("Reflection Color Texture"),
+        anno::in_group("Reflection")
+    ]],
+    uniform color reflection_color = color(1.f, 1.f, 1.f)
+    [[
+        anno::display_name("Reflection Color"),
+        anno::in_group("Reflection")
+    ]],
+    uniform texture_2d normal_map_texture = texture_2d()
+    [[
+        anno::description("The normal map texture"),
+        anno::display_name("Normal Map Texture"),
+        anno::in_group("Normal"),
+        anno::usage("normal")
+    ]],
+    uniform float normal_map_strength = 1.0
+    [[
+        anno::description("Determines the degree of bumpiness"),
+        anno::display_name("Normal Map Strength"),
+        anno::in_group("Normal"),
+        anno::usage(""),
+        anno::soft_range(0.f, 1.f)
+    ]],
+    uniform float geometry_normal_roughness_strength = 1.f
+    [[
+        anno::hard_range(0.f, 1.f),
+        anno::display_name("Normal map to roughness weight"),
+        anno::description("Enables and weights roughness induced by normal maps"),
+        anno::in_group("Normal")
+    ]],
+    uniform bool flip_tangent_u = false
+    [[
+        anno::display_name("Normal Map Flip U Tangent"),
+        anno::in_group("Normal")
+    ]],
+    uniform bool flip_tangent_v = true
+    [[
+        anno::display_name("Normal Map Flip V Tangent"),
+        anno::in_group("Normal")
+    ]],
+
+    // Cutout Opacity
+    uniform bool enable_opacity = false
+    [[
+        anno::display_name("Enable Opacity"),
+        anno::description("Enables the use of cutout opacity"),
+        anno::in_group("Opacity")
+    ]],
+    uniform float cutout_opacity = 1.0f
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::display_name("Opacity Amount"),
+        anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+        anno::in_group("Opacity")
+    ]],
+    uniform texture_2d cutout_opacity_texture = texture_2d()
+    [[
+        anno::description("The opacity map"),
+        anno::display_name("Opacity Map"),
+        anno::in_group("Opacity"),
+        anno::usage("opacity")
+    ]],
+    uniform base::mono_mode cutout_opacity_mono_source = base::mono_alpha
+    [[
+        anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum"),
+        anno::display_name("Opacity Mono Source"),
+        anno::in_group("Opacity"),
+        anno::usage("")
+    ]],
+    uniform float opacity_threshold = 0.f
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::display_name("Opacity Threshold"),
+        anno::description("If negative, disable cutout_opacity; if 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+        anno::in_group("Opacity")
+    ]],
+
+    // UV Projection Group
+    uniform bool project_uvw = false
+    [[
+        anno::display_name("Enable Project UVW Coordinates"),
+        anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+        anno::in_group("UV")
+    ]],
+    uniform bool world_or_object = false
+    [[
+        anno::display_name("Enable World Space"),
+        anno::description("When set to 'true' uses world space for projection, when 'false' object space is used"),
+        anno::in_group("UV")
+    ]],
+
+    // UV Space Selector
+    uniform int uv_space_index = 0
+    [[
+        anno::display_name("UV Space Index"),
+        anno::description("Choose the UV Space Index to be used"),
+        anno::in_group("UV"),
+        anno::hard_range(0, 3)
+    ]],
+    uniform float2 texture_translate = float2(0.0f)
+    [[
+        anno::display_name("Texture Translate"),
+        anno::description("Controls the position of the texture."),
+        anno::in_group("UV")
+    ]],
+    uniform float texture_rotate = 0.f
+    [[
+        anno::display_name("Texture Rotate"),
+        anno::description("Rotates angle of the texture in degrees."),
+        anno::in_group("UV")
+    ]],
+    uniform float2 texture_scale = float2(1.0f)
+    [[
+        anno::display_name("Texture Tiling"),
+        anno::description("Controls repetition of the texture."),
+        anno::in_group("UV")
+    ]]
+)
+[[
+    anno::author("NVIDIA CORPORATION"),
+    anno::display_name("Omni Glass"),
+    anno::version( 1, 0, 0),
+    anno::in_group("Base"),
+    anno::description("Omni Glass Material V2"),
+    anno::key_words(string[]("omni", "omniverse", "glass", "transparent", "window", "transparency", "workflow")),
+    distill_off()
+]]
+= OmniGlass_Opacity(
+    glass_color: glass_color,
+    glass_color_texture: glass_color_texture,
+    frosting_roughness: frosting_roughness,
+    glass_ior: glass_ior,
+    thin_walled: thin_walled,
+    depth: depth,
+    roughness_texture_influence: roughness_texture_influence,
+    roughness_texture: roughness_texture,
+    reflection_color_texture: reflection_color_texture,
+    reflection_color: reflection_color,
+    normal_map_texture: normal_map_texture,
+    normal_map_strength: normal_map_strength,
+    geometry_normal_roughness_strength: geometry_normal_roughness_strength,
+    flip_tangent_u: flip_tangent_u,
+    flip_tangent_v: flip_tangent_v,
+    enable_opacity: enable_opacity,
+    cutout_opacity: cutout_opacity,
+    cutout_opacity_texture: cutout_opacity_texture,
+    cutout_opacity_mono_source: cutout_opacity_mono_source,
+    opacity_threshold: opacity_threshold,
+    project_uvw: project_uvw,
+    world_or_object: world_or_object,
+    uv_space_index:  uv_space_index,
+    texture_translate:  texture_translate,
+    texture_rotate:  texture_rotate,
+    texture_scale:  texture_scale
+);

saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/SubUSDs/materials/OmniGlass_Opacity.mdl

@@ -0,0 +1,488 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+
+mdl 1.4;
+
+import ::tex::*;
+import ::base::*;
+import ::math::*;
+import ::anno::*;
+import ::df::*;
+import ::state::*;
+
+const string COPYRIGHT = 
+" Copyright 1986, 2020 NVIDIA Corporation. All rights reserved.\n"
+" MDL MATERIALS ARE PROVIDED PURSUANT TO AN END USER LICENSE  AGREEMENT,\n"
+" WHICH WAS ACCEPTED IN ORDER TO GAIN ACCESS TO THIS FILE.  IN PARTICULAR,\n" 
+" THE MDL MATERIALS ARE PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND,\n"
+" EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF\n"
+" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF\n" 
+" COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA\n"
+" CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY\n"
+" GENERAL, SPECIAL,  INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN\n"
+" AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR\n"
+" INABILITY TO USE THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.\n";
+
+float get_float( uniform texture_2d t,
+				float f,
+				base::texture_coordinate_info uvw,
+				uniform base::mono_mode mono_source = base::mono_maximum)
+{
+	return tex::texture_isvalid(t) 
+	? 
+	base::file_texture(t, 
+		color(0.f, 0.f, 0.f), 
+		color(1.f, 1.f, 1.f), 
+		mono_source, 
+		uvw,
+		float2(0.f, 1.f), 
+		float2(0.f, 1.f), 
+		tex::wrap_repeat, 
+		tex::wrap_repeat, 
+		false).mono 
+	: 
+	f;
+}
+
+color get_color( uniform texture_2d t,
+				color c,
+				base::texture_coordinate_info uvw)
+{
+	return tex::texture_isvalid(t) 
+	? 
+	base::file_texture(t, 
+		color(0.f, 0.f, 0.f), 
+		color(1.f, 1.f, 1.f), 
+		base::mono_alpha, 
+		uvw,
+		float2(0.f, 1.f), 
+		float2(0.f, 1.f), 
+		tex::wrap_repeat, 
+		tex::wrap_repeat, 
+		false).tint 
+	: 
+	c;
+}
+
+float apply_roughness_influence( 
+		uniform texture_2d roughness_texture, 
+		float constant_roughness, 
+		float roughness_influence,  
+		base::texture_coordinate_info uvw){
+	return math::lerp(constant_roughness, get_float(roughness_texture, constant_roughness, uvw), roughness_influence);
+}
+
+color get_volume_absorption(
+	 float absorption = float(0.001f) [[
+		anno::display_name("Volume Absorption"),
+		anno::description("Controls how much light is absorbed through the surface"),
+		anno::hard_range(0.0,1000.0),
+		anno::soft_range(0.0,1.0)
+	]],
+
+	 color absorptionColor = color(1) [[
+		anno::display_name("Absorption Color"),
+		anno::description("Simulates shifts in color when light passes through the surface")
+	]]
+) [[
+	anno::display_name("Absorption"),
+	anno::description("Provides an absorption coefficient for the volume"),
+	anno::unused()
+]] {
+	return (absorption > 0) ? 
+		-math::log(math::clamp(absorptionColor, color(0), color(1))) * absorption * 100.0 : 
+		color(0);
+}
+
+uniform float4x4 rotation_translation_scale(
+	uniform float3 rotation = float3(0.)
+		[[ anno::description("Rotation applied to every UVW coordinate") ]],
+	uniform float3 translation = float3(0.)
+		[[ anno::description("Offset applied to every UVW coordinate") ]],
+	uniform float3 scaling = float3(1.)
+		[[ anno::description("Scale applied to every UVW coordinate") ]]
+)
+[[
+	anno::description("Construct transformation matrix from Euler rotation, translation and scale"),
+	anno::hidden()
+]]
+{
+	float4x4 scale =
+		float4x4(scaling.x        , 0.               , 0.               , 0.,
+				 0.               , scaling.y        , 0.               , 0.,
+				 0.               , 0.               , scaling.z        , 0.,
+				 translation.x, translation.y, translation.z, 1.);
+
+	float3 s = math::sin(rotation);
+	float3 c = math::cos(rotation);
+	float4x4 rotate =
+		float4x4(  c.y*c.z ,  -c.x*s.z + s.x*s.y*c.z ,  s.x*s.z + c.x*s.y*c.z , 0.0,
+				   c.y*s.z ,   c.x*c.z + s.x*s.y*s.z , -s.x*c.z + c.x*s.y*s.z , 0.0,
+				  -s.y     ,   s.x*c.y               ,  c.x*c.y               , 0.0,
+				   0.     ,   0                   ,  0                   , 1.);
+
+	return   scale*rotate;
+}
+
+
+
+
+
+export annotation distill_off();
+
+export material OmniGlass_Opacity(
+	color absorption_coeff = color(0.f, 0.f, 0.f)  // hiding this parameter as it does not exist in the new material
+	[[
+		anno::hidden(),
+		anno::unused()
+	]],
+	uniform bool use_glass_color_texture = false
+	[[
+		anno::hidden(),
+		anno::unused()
+	]],
+	uniform color glass_color = color(1.f, 1.f, 1.f) [[
+		anno::display_name("Glass Color"),
+		anno::description("Sets the color of the glass"),
+		anno::hard_range(color(0.0), color(1.0)),
+		anno::in_group("Color")
+	]],
+	uniform texture_2d glass_color_texture = texture_2d() [[
+		anno::display_name("Glass Color Texture"),
+		anno::description("Specifies the texture to be used for the glass color of the material"),
+		anno::in_group("Color")
+	]],
+	float frosting_roughness = 0.f [[
+		anno::display_name("Glass Roughness"),
+		anno::description("Sets the roughness of the glass material "),
+		anno::hard_range(0.0, 1.0),
+		anno::in_group("Roughness")
+	]],
+	uniform float glass_ior = 1.491f [[
+		anno::display_name("Glass IOR"),
+		anno::description("Sets IOR of the glass material "),
+		anno::soft_range(1.0f, 4.0f),
+		anno::in_group("Refraction")
+	]],
+	uniform bool thin_walled = false [[
+		anno::display_name("Thin Walled"),
+		anno::description("When enabled, the material is considered thin-walled. Use this, when you have glass surfaces that are modeled with a single plane"),
+		anno::in_group("Refraction")
+	]],
+	
+	
+	// NEW PARAMETERS
+	uniform float depth = 0.001f [[	
+		anno::description("Controls how much light is absorbed through the surface"),
+		anno::display_name("Volume Absorption Scale"),
+		anno::in_group("Color"),
+		anno::soft_range(0.f, 1.f),
+		anno::hard_range(0.f, 1000.f)
+	]],
+	float roughness_texture_influence = 1.f [[
+		anno::display_name("Roughness Texture Influence"),
+		anno::in_group("Roughness"),
+		anno::hard_range(0.0f, 1.0f)
+	]],
+	uniform texture_2d roughness_texture = texture_2d() [[
+		anno::description("The roughness texture"),
+		anno::display_name("Roughness Texture"),
+		anno::in_group("Roughness"),
+		anno::usage("")
+	]],
+	uniform texture_2d reflection_color_texture = texture_2d() [[
+		anno::description("The reflection color texture"),
+		anno::display_name("Reflection Color Texture"),
+		anno::in_group("Reflection")
+	]],
+	uniform color reflection_color = color(1.f, 1.f, 1.f) [[
+		anno::display_name("Reflection Color"),
+		anno::in_group("Reflection")
+	]],
+	uniform texture_2d normal_map_texture = texture_2d() [[
+		anno::description("The normal map texture"),
+		anno::display_name("Normal Map Texture"),
+		anno::in_group("Normal"),
+		anno::usage("")
+	]],
+	uniform float normal_map_strength = 1.0 [[
+		anno::description("Determines the degree of bumpiness"),
+		anno::display_name("Normal Map Strength"),
+		anno::in_group("Normal"),
+		anno::usage(""),
+		anno::soft_range(0.f, 1.f)
+	]],
+	uniform bool flip_tangent_u = false  [[
+        anno::display_name("Normal Map Flip U Tangent"),
+        anno::in_group("Normal")
+    ]],
+	uniform bool flip_tangent_v = true [[
+        anno::display_name("Normal Map Flip V Tangent"),
+        anno::in_group("Normal")
+    ]],
+
+	// Cutout Opacity
+	uniform bool enable_opacity = true
+	[[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+	uniform float cutout_opacity = 1.0f [[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Amount"),
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity")
+	]],	
+	uniform texture_2d cutout_opacity_texture = texture_2d() [[
+		anno::description("The opacity map"),
+		anno::display_name("Opacity Map"),
+		anno::in_group("Opacity")
+	]],
+	uniform base::mono_mode cutout_opacity_mono_source = base::mono_alpha [[
+		anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum"),
+		anno::display_name("Opacity Mono Source"),
+		anno::in_group("Opacity"),
+		anno::usage("")
+	]],
+	uniform float opacity_threshold = 0.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Threshold"),
+		anno::description("If negative, disable cutout_opacity; if 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity")
+	]],
+		
+	//
+	// End of new
+	//
+	// UV Projection Group
+	//
+	uniform bool project_uvw = false
+	[[
+		anno::display_name("Enable Project UVW Coordinates"),
+		anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+		anno::in_group("UV")
+	]],
+	uniform bool world_or_object = false
+	[[
+		anno::display_name("Enable World Space"),
+		anno::description("When set to 'true' uses world space for projection, when 'false' object space is used"),
+		anno::in_group("UV")
+	]],
+	
+	// UV Space selector
+	uniform int uv_space_index =  0
+	[[
+		anno::display_name("UV Space Index"),
+		anno::description("Choose the UV Space Index to be used"),
+		anno::in_group("UV"),
+		anno::hard_range(0, 3)
+	]],
+	uniform float2 texture_translate =  float2(0.0f)
+	[[
+		anno::display_name("Texture Translate"),
+		anno::description("Controls the position of the texture."),
+		anno::in_group("UV")
+	]],
+	uniform float texture_rotate =  0.f
+	[[
+		anno::display_name("Texture Rotate"),
+		anno::description("Rotates angle of the texture in degrees."),
+		anno::in_group("UV")
+	]],
+	uniform float2 texture_scale =  float2(1.0f)
+	[[
+		anno::display_name("Texture Scale"),
+		anno::description("Larger numbers increase the size."),
+		anno::in_group("UV")
+	]])
+[[ 
+	anno::copyright_notice(COPYRIGHT),
+	anno::author("NVIDIA CORPORATION"),
+	anno::display_name("Omni Glass Opacity"),
+	anno::version( 1, 0, 0),
+	anno::description("Omni Glass Opacity Material"),
+ 	anno::in_group("Base"),
+	anno::key_words(string[]("omni", "omniverse", "glass", "transparent", "window", "transparency", "workflow")),
+	distill_off()
+]]
+ = 
+	let {
+/* Material Properties */		
+
+		bool local_thin_walled = (tex::texture_isvalid(cutout_opacity_texture) || cutout_opacity != 1.f) ? 
+									true : thin_walled;
+		
+		color local_glass_ior = glass_ior;
+
+/* UVW Properties */		
+		// Generating the texture coordinates for the texture lookups
+		base::texture_coordinate_system the_system = world_or_object ? 
+										base::texture_coordinate_world : 
+										base::texture_coordinate_object;
+		
+		
+		base::texture_coordinate_info uvw = project_uvw ? 
+												base::coordinate_projection(
+													coordinate_system: the_system,
+													texture_space: uv_space_index,
+													projection_type: base::projection_cubic ) :
+												base::coordinate_source(
+													coordinate_system: base::texture_coordinate_uvw,
+													texture_space: uv_space_index
+		);									
+		
+		base::texture_coordinate_info  transformed_uvw =  base::transform_coordinate(
+									transform: rotation_translation_scale(
+										scaling: float3(texture_scale.x, texture_scale.y, 1.0),
+										rotation: float3(0.0, 0.0, texture_rotate/180.*math::PI ),
+										translation: float3(texture_translate.x, texture_translate.y, 0.0)
+									),
+									coordinate: uvw
+		);
+		float opacity_value = get_float(
+						cutout_opacity_texture,
+						cutout_opacity,
+						transformed_uvw,
+						cutout_opacity_mono_source
+						);
+
+		// The opacity_threshold is interpreted as follows:
+		// 1. opacity_threshold > 0: binary opacity masking mode
+		//   i.e.: if opacity_value > opacity_threshold we remap opacity_value to 1.0, otherwise to 0.0
+		// 2. opacity_threshold == 0: fractional opacity mode. Leaves the opacity_value untouched,
+		//   allowing the renderer to use fractional cutout_opacity values, if it supports this feature
+		//
+		// NOTE: when the renderer does not enable 'fractional cutout opacity' it interprets
+		// cutout_opacity values of 1.0 as opaque and anything below as fully transparent
+		float local_cutout_opacity = enable_opacity ? ((opacity_threshold == 0.0) ? opacity_value : ((opacity_value >= opacity_threshold) ? 1.0 : 0)) : 1.0;
+						
+		color local_reflection_color = get_color(
+						reflection_color_texture,
+						reflection_color,
+						transformed_uvw
+						);
+						
+		color local_transmission_color =  get_color(
+						glass_color_texture, 
+						glass_color, 
+						transformed_uvw
+						);
+						
+/* Surface Properties */		
+		float local_roughness = apply_roughness_influence(
+						roughness_texture,
+						frosting_roughness,
+						roughness_texture_influence,
+						transformed_uvw
+						);
+		
+		float local_roughness_squared = local_roughness * local_roughness;
+		bsdf ggx_1 = ::df::microfacet_ggx_smith_bsdf(
+					local_roughness_squared,
+					local_roughness_squared, 
+					local_reflection_color,
+					::state::texture_tangent_u(0),
+					::df::scatter_reflect, 
+					""
+					);
+		
+		bsdf ggx_2 = ::df::microfacet_ggx_smith_bsdf(
+					local_roughness_squared,
+					local_roughness_squared,
+					local_transmission_color, 
+					::state::texture_tangent_u(0), 
+					::df::scatter_transmit, 
+					""
+					);
+		
+		material_surface local_surface(
+			::df::fresnel_layer(
+				glass_ior, 
+				1.f,
+				ggx_1,
+				ggx_2,
+				normal: ::state::normal()
+			),
+			material_emission()
+			);
+		
+/* Volume Properties */
+		color local_volume_absorption = depth;
+		color local_volume_scattering = color(0.f, 0.f, 0.f);
+		material_volume local_volume(
+			vdf(),
+			local_volume_absorption,
+			local_volume_scattering
+		);
+
+	// Normal calculations
+	float3 the_normal =  tex::texture_isvalid(normal_map_texture) ?
+							base::tangent_space_normal_texture(
+							texture:        normal_map_texture,
+							factor:         normal_map_strength,
+							flip_tangent_u: flip_tangent_u,
+							flip_tangent_v: flip_tangent_v,
+							uvw:            transformed_uvw
+							//flip_tangent_v: true
+							): state::normal() ;	
+
+/* Geometry Properties */
+
+	material_geometry local_geometry(
+			float3(0.f),
+			local_cutout_opacity,
+			the_normal
+	);
+/* 		material_geometry local_geometry(
+			float3(0.f),
+			local_cutout_opacity,
+			::base::tangent_space_normal_texture(
+				normal_map_texture, 
+				normal_map_strength, 
+				false, 
+				true, /*flip_tangent_v OM-22707*/
+				transformed_uvw, 
+				float2(0.f, 1.f), 
+				float2(0.f, 1.f), 
+				::tex::wrap_repeat, 
+				::tex::wrap_repeat, 
+				false, 
+				1.f, 
+				0.f)
+		); */
+		
+	} in
+		material(
+			thin_walled: local_thin_walled,
+			surface: local_surface,
+			ior: local_glass_ior,
+			volume: local_volume,
+			geometry: local_geometry);

saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/SubUSDs/materials/OmniGlass_Opacity_1.mdl

@@ -0,0 +1,487 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+
+mdl 1.4;
+
+import ::tex::*;
+import ::base::*;
+import ::math::*;
+import ::anno::*;
+import ::df::*;
+import ::state::*;
+import OmniPBRBase::*;
+
+const string COPYRIGHT =
+" Copyright 1986, 2020 NVIDIA Corporation. All rights reserved.\n"
+" MDL MATERIALS ARE PROVIDED PURSUANT TO AN END USER LICENSE  AGREEMENT,\n"
+" WHICH WAS ACCEPTED IN ORDER TO GAIN ACCESS TO THIS FILE.  IN PARTICULAR,\n"
+" THE MDL MATERIALS ARE PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND,\n"
+" EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF\n"
+" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF\n"
+" COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA\n"
+" CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY\n"
+" GENERAL, SPECIAL,  INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN\n"
+" AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR\n"
+" INABILITY TO USE THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.\n";
+
+export annotation distill_off();
+
+
+float get_float(
+    uniform texture_2d t,
+    float f,
+    base::texture_coordinate_info uvw,
+    uniform base::mono_mode mono_source = base::mono_maximum
+)
+{
+    return tex::texture_isvalid(t) ?
+        base::file_texture(
+            t,
+            color(0.f, 0.f, 0.f),
+            color(1.f, 1.f, 1.f),
+            mono_source,
+            uvw,
+            float2(0.f, 1.f),
+            float2(0.f, 1.f),
+            tex::wrap_repeat,
+            tex::wrap_repeat,
+            false
+        ).mono :
+        f;
+}
+
+color get_color(
+    uniform texture_2d t,
+    color c,
+    base::texture_coordinate_info uvw
+)
+{
+    return tex::texture_isvalid(t) ?
+        base::file_texture(
+            t,
+            color(0.f, 0.f, 0.f),
+            color(1.f, 1.f, 1.f),
+            base::mono_alpha,
+            uvw,
+            float2(0.f, 1.f),
+            float2(0.f, 1.f),
+            tex::wrap_repeat,
+            tex::wrap_repeat,
+            false
+        ).tint :
+        c;
+}
+
+float apply_roughness_influence(
+    uniform texture_2d roughness_texture,
+    float constant_roughness,
+    float roughness_influence,
+    base::texture_coordinate_info uvw
+)
+{
+    return math::lerp(
+        constant_roughness,
+        get_float(roughness_texture, constant_roughness, uvw),
+        roughness_influence
+    );
+}
+
+uniform float4x4 rotation_translation_scale(
+    uniform float3 rotation = float3(0.)
+    [[
+        anno::description("Rotation applied to every UVW coordinate")
+    ]],
+    uniform float3 translation = float3(0.)
+    [[
+        anno::description("Offset applied to every UVW coordinate")
+    ]],
+    uniform float3 scaling = float3(1.)
+    [[
+        anno::description("Scale applied to every UVW coordinate")
+    ]]
+)
+[[
+    anno::description("Construct transformation matrix from Euler rotation, translation and scale"),
+    anno::hidden()
+]]
+{
+    float4x4 scale = float4x4(
+        scaling.x    , 0.           , 0.           , 0.,
+        0.           , scaling.y    , 0.           , 0.,
+        0.           , 0.           , scaling.z    , 0.,
+        translation.x, translation.y, translation.z, 1.
+    );
+
+    float3 s = math::sin(rotation);
+    float3 c = math::cos(rotation);
+    float4x4 rotate = float4x4(
+         c.y*c.z, -c.x*s.z + s.x*s.y*c.z,  s.x*s.z + c.x*s.y*c.z, 0.0,
+         c.y*s.z,  c.x*c.z + s.x*s.y*s.z, -s.x*c.z + c.x*s.y*s.z, 0.0,
+        -s.y    ,  s.x*c.y              ,  c.x*c.y              , 0.0,
+         0.     ,  0.                   ,  0.                   , 1.
+    );
+
+    return scale*rotate;
+}
+
+
+export material OmniGlass_Opacity
+(
+    color absorption_coeff = color(0.f, 0.f, 0.f)  // hiding this parameter as it does not exist in the new material
+    [[
+        anno::hidden(),
+        anno::unused()
+    ]],
+    uniform bool use_glass_color_texture = false
+    [[
+        anno::hidden(),
+        anno::unused()
+    ]],
+    uniform color glass_color = color(1.f, 1.f, 1.f)
+    [[
+        anno::display_name("Glass Color"),
+        anno::description("Sets the color of the glass"),
+        anno::hard_range(color(0.0), color(1.0)),
+        anno::in_group("Color")
+    ]],
+    uniform texture_2d glass_color_texture = texture_2d()
+    [[
+        anno::display_name("Glass Color Texture"),
+        anno::description("Specifies the texture to be used for the glass color of the material"),
+        anno::in_group("Color")
+    ]],
+    float frosting_roughness = 0.f
+    [[
+        anno::display_name("Glass Roughness"),
+        anno::description("Sets the roughness of the glass material "),
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Roughness")
+    ]],
+    uniform float glass_ior = 1.491f
+    [[
+        anno::display_name("Glass IOR"),
+        anno::description("Sets IOR of the glass material "),
+        anno::soft_range(1.0f, 4.0f),
+        anno::in_group("Refraction")
+    ]],
+    uniform bool thin_walled = false
+    [[
+        anno::display_name("Thin Walled"),
+        anno::description("When enabled, the material is considered thin-walled. Use this, when you have glass surfaces that are modeled with a single plane"),
+        anno::in_group("Refraction")
+    ]],
+    uniform float depth = 0.001f
+    [[
+        anno::description("Controls how much light is absorbed through the surface"),
+        anno::display_name("Volume Absorption Scale"),
+        anno::in_group("Color"),
+        anno::soft_range(0.f, 1.f),
+        anno::hard_range(0.f, 1000.f)
+    ]],
+    float roughness_texture_influence = 1.f
+    [[
+        anno::display_name("Roughness Texture Influence"),
+        anno::in_group("Roughness"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+    uniform texture_2d roughness_texture = texture_2d()
+    [[
+        anno::description("The roughness texture"),
+        anno::display_name("Roughness Texture"),
+        anno::in_group("Roughness"),
+        anno::usage("")
+    ]],
+    uniform texture_2d reflection_color_texture = texture_2d()
+    [[
+        anno::description("The reflection color texture"),
+        anno::display_name("Reflection Color Texture"),
+        anno::in_group("Reflection")
+    ]],
+    uniform color reflection_color = color(1.f, 1.f, 1.f)
+    [[
+        anno::display_name("Reflection Color"),
+        anno::in_group("Reflection")
+    ]],
+    uniform texture_2d normal_map_texture = texture_2d()
+    [[
+        anno::description("The normal map texture"),
+        anno::display_name("Normal Map Texture"),
+        anno::in_group("Normal"),
+        anno::usage("")
+    ]],
+    uniform float normal_map_strength = 1.0
+    [[
+        anno::description("Determines the degree of bumpiness"),
+        anno::display_name("Normal Map Strength"),
+        anno::in_group("Normal"),
+        anno::usage(""),
+        anno::soft_range(0.f, 1.f)
+    ]],
+    uniform float geometry_normal_roughness_strength = 1.f
+    [[
+        anno::hard_range(0.f, 1.f),
+        anno::display_name("Normal map to roughness weight"),
+        anno::description("Enables and weights roughness induced by normal maps"),
+        anno::in_group("Normal")
+    ]],
+    uniform bool flip_tangent_u = false
+    [[
+        anno::display_name("Normal Map Flip U Tangent"),
+        anno::in_group("Normal")
+    ]],
+    uniform bool flip_tangent_v = true
+    [[
+        anno::display_name("Normal Map Flip V Tangent"),
+        anno::in_group("Normal")
+    ]],
+
+    // Cutout Opacity
+    uniform bool enable_opacity = true
+    [[
+        anno::display_name("Enable Opacity"),
+        anno::description("Enables the use of cutout opacity"),
+        anno::in_group("Opacity")
+    ]],
+    uniform float cutout_opacity = 1.0f
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::display_name("Opacity Amount"),
+        anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+        anno::in_group("Opacity")
+    ]],
+    uniform texture_2d cutout_opacity_texture = texture_2d()
+    [[
+        anno::description("The opacity map"),
+        anno::display_name("Opacity Map"),
+        anno::in_group("Opacity")
+    ]],
+    uniform base::mono_mode cutout_opacity_mono_source = base::mono_alpha
+    [[
+        anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum"),
+        anno::display_name("Opacity Mono Source"),
+        anno::in_group("Opacity"),
+        anno::usage("")
+    ]],
+    uniform float opacity_threshold = 0.f
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::display_name("Opacity Threshold"),
+        anno::description("If negative, disable cutout_opacity; if 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+        anno::in_group("Opacity")
+    ]],
+
+    // UV Projection Group
+    uniform bool project_uvw = false
+    [[
+        anno::display_name("Enable Project UVW Coordinates"),
+        anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+        anno::in_group("UV")
+    ]],
+    uniform bool world_or_object = false
+    [[
+        anno::display_name("Enable World Space"),
+        anno::description("When set to 'true' uses world space for projection, when 'false' object space is used"),
+        anno::in_group("UV")
+    ]],
+
+    // UV Space Selector
+    uniform int uv_space_index = 0
+    [[
+        anno::display_name("UV Space Index"),
+        anno::description("Choose the UV Space Index to be used"),
+        anno::in_group("UV"),
+        anno::hard_range(0, 3)
+    ]],
+    uniform float2 texture_translate = float2(0.0f)
+    [[
+        anno::display_name("Texture Translate"),
+        anno::description("Controls the position of the texture."),
+        anno::in_group("UV")
+    ]],
+    uniform float texture_rotate = 0.f
+    [[
+        anno::display_name("Texture Rotate"),
+        anno::description("Rotates angle of the texture in degrees."),
+        anno::in_group("UV")
+    ]],
+    uniform float2 texture_scale = float2(1.0f)
+    [[
+        anno::display_name("Texture Scale"),
+        anno::description("Larger numbers increase the size."),
+        anno::in_group("UV")
+    ]]
+)
+[[
+    anno::copyright_notice(COPYRIGHT),
+    anno::author("NVIDIA CORPORATION"),
+    anno::display_name("Omni Glass Opacity"),
+    anno::version( 1, 0, 0),
+    anno::description("Omni Glass Opacity Material"),
+    anno::in_group("Base"),
+    anno::key_words(string[]("omni", "omniverse", "glass", "transparent", "window", "transparency", "workflow")),
+    distill_off()
+]]
+= let {
+    // Material Properties
+    bool local_thin_walled = (tex::texture_isvalid(cutout_opacity_texture) || cutout_opacity != 1.f) ? true : thin_walled;
+    color local_glass_ior = glass_ior;
+
+
+    // UVW Properties
+    // Generating the texture coordinates for the texture lookups
+    base::texture_coordinate_system the_system = world_or_object ?
+        base::texture_coordinate_world :
+        base::texture_coordinate_object;
+
+    base::texture_coordinate_info uvw = project_uvw ?
+        base::coordinate_projection(
+            coordinate_system: the_system,
+            texture_space: uv_space_index,
+            projection_type: base::projection_cubic
+        ) :
+        base::coordinate_source(
+            coordinate_system: base::texture_coordinate_uvw,
+            texture_space: uv_space_index
+        );
+
+    base::texture_coordinate_info transformed_uvw = base::transform_coordinate(
+        transform: rotation_translation_scale(
+            scaling: float3(texture_scale.x, texture_scale.y, 1.0),
+            rotation: float3(0.0, 0.0, texture_rotate/180.*math::PI),
+            translation: float3(texture_translate.x, texture_translate.y, 0.0)
+        ),
+        coordinate: uvw
+    );
+
+
+    // Opacity Properties
+    float opacity_value = get_float(cutout_opacity_texture, cutout_opacity, transformed_uvw, cutout_opacity_mono_source);
+
+    // The opacity_threshold is interpreted as follows:
+    // 1. opacity_threshold > 0: binary opacity masking mode
+    //   i.e.: if opacity_value > opacity_threshold we remap opacity_value to 1.0, otherwise to 0.0
+    // 2. opacity_threshold == 0: fractional opacity mode. Leaves the opacity_value untouched,
+    //   allowing the renderer to use fractional cutout_opacity values, if it supports this feature
+    //
+    // NOTE: when the renderer does not enable 'fractional cutout opacity' it interprets
+    // cutout_opacity values of 1.0 as opaque and anything below as fully transparent
+    float local_cutout_opacity = enable_opacity ?
+        ((opacity_threshold == 0.0) ?
+            opacity_value :
+            ((opacity_value >= opacity_threshold) ? 1.0 : 0)
+        ) :
+        1.0;
+
+
+    // Surface Properties
+    color local_reflection_color = get_color(reflection_color_texture, reflection_color, transformed_uvw);
+    color local_transmission_color = get_color(glass_color_texture, glass_color, transformed_uvw);
+
+    OmniPBRBase::NormalData defaultData(state::normal(), float2(0.f));
+    OmniPBRBase::NormalData normal_data = tex::texture_isvalid(normal_map_texture) ?
+        OmniPBRBase::tangent_space_normal_roughness_texture(
+            normal_map_texture,
+            normal_map_strength,
+            flip_tangent_u,
+            flip_tangent_v,
+            transformed_uvw,
+            float2(0.f, 1.f),
+            float2(0.f, 1.f),
+            tex::wrap_repeat,
+            tex::wrap_repeat,
+            false,
+            1.f,
+            0.f,
+            0.f,
+            int2(0),
+            tex::wrap_repeat,
+            30.f
+        ) :
+        defaultData;
+
+    float local_roughness = apply_roughness_influence(
+        roughness_texture,
+        frosting_roughness,
+        roughness_texture_influence,
+        transformed_uvw
+    );
+    float2 local_roughness_squared(
+        (local_roughness * local_roughness +
+        geometry_normal_roughness_strength * normal_data.roughness.x * normal_data.roughness.x),
+        (local_roughness * local_roughness +
+        geometry_normal_roughness_strength * normal_data.roughness.y * normal_data.roughness.y)
+    );
+
+    float3 the_normal = normal_data.normal;
+
+    bsdf ggx_1 = ::df::microfacet_ggx_smith_bsdf(
+        roughness_u: local_roughness_squared.x,
+        roughness_v: local_roughness_squared.y,
+        tint: local_reflection_color,
+        tangent_u: ::state::texture_tangent_u(0),
+        mode: ::df::scatter_reflect
+    );
+
+    bsdf ggx_2 = ::df::microfacet_ggx_smith_bsdf(
+        roughness_u: local_roughness_squared.x,
+        roughness_v: local_roughness_squared.y,
+        tint: local_transmission_color,
+        tangent_u: ::state::texture_tangent_u(0),
+        mode: ::df::scatter_transmit
+    );
+
+    material_surface local_surface(
+        ::df::fresnel_layer(
+            ior: glass_ior,
+            weight: 1.f,
+            layer: ggx_1,
+            base: ggx_2,
+            normal: the_normal
+        ),
+        material_emission()
+    );
+
+
+    // Volume Properties
+    color local_volume_absorption = depth;
+    color local_volume_scattering = color(0.f, 0.f, 0.f);
+
+    material_volume local_volume(vdf(), local_volume_absorption, local_volume_scattering);
+
+
+    // Geometry Properties
+    material_geometry local_geometry(float3(0.f), local_cutout_opacity, the_normal);
+
+} in material(
+    thin_walled: local_thin_walled,
+    surface: local_surface,
+    ior: local_glass_ior,
+    volume: local_volume,
+    geometry: local_geometry
+);

saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/SubUSDs/materials/OmniPBR.mdl

@@ -0,0 +1,392 @@
+/***************************************************************************************************
+ * Copyright 2022 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+mdl 1.7;
+
+import ::df::*;
+import ::state::*;
+import ::math::*;
+import ::base::*;
+import ::state::*;
+import ::tex::*;
+import ::anno::*;
+
+import ::debug::*;
+
+import ::nvidia::core_definitions::file_texture;
+import ::nvidia::core_definitions::normalmap_texture;
+
+import OmniPBR_ClearCoat::*;
+
+
+//  OmniPBR  //
+
+export material OmniPBR(
+
+    //  Albdeo  //
+
+	color diffuse_color_constant = color(0.2) [[
+		anno::display_name("Albedo Color"),
+		anno::description("This is the albedo base color"),
+		anno::in_group("Albedo")
+	]],
+	uniform texture_2d diffuse_texture = texture_2d() [[
+		anno::display_name("Albedo Map"),
+		anno::in_group("Albedo")
+	]],
+	float albedo_desaturation = float(0.0) [[
+		anno::display_name("Albedo Desaturation"),
+		anno::description("Desaturates the diffuse color"),
+		anno::in_group("Albedo"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	float albedo_add = float(0.0) [[
+		anno::display_name("Albedo Add"),
+		anno::description("Adds a constant value to the diffuse color "),
+		anno::in_group("Albedo"),
+		anno::soft_range(float(-1.0), float(1.0))
+	]],	
+	float albedo_brightness = float(1.0) [[
+		anno::display_name("Albedo Brightness"),
+		anno::description("Multiplier for the diffuse color "),
+		anno::in_group("Albedo"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],	
+	color diffuse_tint = color(1.0) [[
+		anno::display_name("Color Tint"),
+		anno::description("When enabled, this color value is multiplied over the final albedo color"),
+		anno::in_group("Albedo")
+	]],
+	
+
+	//  Reflectivity //
+	
+	float reflection_roughness_constant = float(0.5) [[
+		anno::display_name("Roughness Amount"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	float reflection_roughness_texture_influence = float(0.0) [[
+		anno::display_name("Roughness Map Influence"),
+		anno::description("Blends between the constant value and the lookup of the roughness texture"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d reflectionroughness_texture = texture_2d() [[
+		anno::display_name("Roughness Map"),
+		anno::in_group("Reflectivity"),
+		anno::usage("roughness")
+	]],
+	float metallic_constant = float(0.0) [[
+		anno::display_name("Metallic Amount"),
+		anno::description("Metallic Material"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],	
+	float metallic_texture_influence = float(0.0) [[
+		anno::display_name("Metallic Map Influence"),
+		anno::description("Blends between the constant value and the lookup of the metallic texture"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d metallic_texture = texture_2d() [[
+		anno::display_name("Metallic Map"),
+		anno::in_group("Reflectivity"),
+		anno::usage("metalness")
+	]], 
+	float specular_level = float(0.5) [[
+		anno::display_name("Specular"),
+		anno::description("The specular level (intensity) of the material"),
+		anno::in_group("Reflectivity"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	
+
+	//  ORM  //
+ 
+	uniform bool enable_ORM_texture = false [[
+		anno::display_name("Enable ORM Texture"),
+		anno::description("The ORM texture will be used to extract the Occlusion, Roughness and Metallic textures from R,G,B channels"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d ORM_texture = texture_2d() [[
+		anno::display_name("ORM Map"),
+		anno::description("Texture that has Occlusion, Roughness and Metallic maps stored in their respective R, G and B channels"),
+		anno::in_group("Reflectivity"),
+		anno::usage("roughness")
+	]],
+
+
+	//  AO Group  // 
+
+	float ao_to_diffuse = 0.0 [[
+		anno::display_name("AO to diffuse"),
+		anno::description("Controls the amount of ambient occlusion multiplied against the diffuse color channel"),
+		anno::in_group("AO"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d ao_texture = texture_2d() [[
+		anno::display_name("Ambient Occlusion Map"),
+		anno::description("The ambient occlusion texture for the material"),
+		anno::in_group("AO"),
+		anno::usage("occlusion")
+	]],
+	
+	
+	//  Emission //  
+
+	uniform bool enable_emission = false [[
+        anno::display_name("Enable Emission"),
+		anno::description("Enables the emission of light from the material"),
+		anno::in_group("Emissive")
+	]],
+	color emissive_color = color(1.0,0.1,0.1) [[
+		anno::display_name("Emissive Color"),
+		anno::description("The emission color"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true")
+	]],
+    	uniform texture_2d emissive_color_texture = texture_2d() [[ 
+		anno::display_name("Emissive Color map"),
+        anno::in_group("Emissive"),
+		anno::description("The emissive color texture"),
+        anno::enable_if("enable_emission == true")
+    ]],	
+	uniform texture_2d emissive_mask_texture = texture_2d() [[
+		anno::display_name("Emissive Mask map"),
+		anno::description("The texture masking the emissive color"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true"),
+	 	anno::usage("occlusion")
+	]],
+	float emissive_intensity = float(40.0) [[
+		anno::display_name("Emissive Intensity"),    
+		anno::description("Intensity of the emission"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true")
+	]],	
+
+
+    //  Cutout Opacity  //
+	
+    uniform bool enable_opacity = false [[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+ 	uniform texture_2d opacity_texture = texture_2d() [[
+		anno::display_name("Opacity Map"),
+		anno::in_group("Opacity"),
+		anno::usage("opacity")
+	]],
+	float opacity_constant = float(1.0) [[
+		anno::display_name("Opacity Amount"),    
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform bool enable_opacity_texture = false [[
+		anno::display_name("Enable Opacity Texture"),
+		anno::description("Enables or disables the usage of the opacity texture map"),
+		anno::in_group("Opacity")
+	]],
+	uniform base::mono_mode opacity_mode = base::mono_average [[
+		anno::display_name("Opacity Mono Source"),
+		anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum"),
+		anno::in_group("Opacity")
+	]],
+	uniform float opacity_threshold = float(0.0) [[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Threshold"),
+		anno::description("If 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity")
+	]],
+
+
+
+	//  Normal  // 
+	
+	uniform float geometry_normal_roughness_strength = 1.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Normal map to roughness weight"),
+		anno::description("Enables and weights roughness induced by normal maps"),
+		anno::in_group("Normal")
+	]],
+	uniform float bump_factor = float(1.0) [[
+		anno::display_name("Normal Strength"),
+		anno::description("Strength of normal map"),
+		anno::in_group("Normal"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d normalmap_texture = texture_2d() [[
+		anno::display_name("Normal Map"),
+		anno::in_group("Normal"),
+		anno::usage("normal")
+	]], 
+	uniform float detail_bump_factor = float(0.3) [[
+		anno::display_name("Detail Normal Strength"),
+		anno::in_group("Normal"),
+		anno::description("Strength of the detail normal"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d detail_normalmap_texture = texture_2d() [[
+		anno::display_name("Detail Normal Map"),
+		anno::in_group("Normal"),
+		anno::usage("normal")
+	]],
+	uniform bool flip_tangent_u = false  [[
+        anno::display_name("Normal Map Flip U Tangent"),
+        anno::in_group("Normal")
+    	]],
+	uniform bool flip_tangent_v = true [[
+        anno::display_name("Normal Map Flip V Tangent"),
+        anno::in_group("Normal")
+    	]],
+
+	//  UVW Projection Group  //
+
+	uniform bool project_uvw = false [[
+		anno::display_name("Enable Project UVW Coordinates"),
+		anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+		anno::in_group("UV")
+	]],
+	uniform bool world_or_object = false [[
+		anno::display_name("Enable World Space"),
+		anno::description("When enabled, uses world space for projection, otherwise object space is used"),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform int uv_space_index =  0 [[
+		anno::display_name("UV Space Index"),
+		anno::description("UV Space Index."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true"),
+		anno::hard_range(int(0), int(3))
+	]],
+	
+	//  UVW Adjustments Group  //
+
+	uniform float2 texture_translate =  float2(0.0) [[
+		anno::display_name("Texture Translate"),
+		anno::description("Controls position of texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float texture_rotate = float(0.0) [[
+		anno::display_name("Texture Rotate"),
+		anno::description("Rotates angle of texture in degrees."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float2 texture_scale =  float2(1.0) [[
+		anno::display_name("Texture Tiling"),
+		anno::description("Controls the repetition of the texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float2 detail_texture_translate =  float2(0.0) [[
+		anno::display_name("Detail Texture Translate"),
+		anno::description("Controls the position of the detail texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float detail_texture_rotate =  float(0.0) [[
+		anno::display_name("Detail Texture Rotate"),
+		anno::description("Rotates angle of the detail texture in degrees."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float2 detail_texture_scale =  float2(1.0) [[
+		anno::display_name("Detail Texture Tiling"),
+		anno::description("Controls the repetition of the detail texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]]
+) 
+[[
+	anno::display_name("OmniPBR"),
+	anno::description("OmniPBR Base with support for clear coat, opacity and ORM textures."),
+    anno::in_group("Base"),
+	anno::version( 2, 1, 2),
+	anno::author("NVIDIA CORPORATION"), 
+	anno::key_words(string[]("omni", "PBR", "opacity", "omniverse", "generic"))
+]] = let {
+
+material base = OmniPBR_ClearCoat::OmniPBR_ClearCoat(
+    diffuse_color_constant: diffuse_color_constant,
+    diffuse_texture: diffuse_texture,
+    albedo_desaturation: albedo_desaturation,
+    albedo_add: albedo_add,
+    albedo_brightness: albedo_brightness,
+    diffuse_tint: diffuse_tint,
+    reflection_roughness_constant: reflection_roughness_constant,
+    reflection_roughness_texture_influence: reflection_roughness_texture_influence,
+    reflectionroughness_texture: reflectionroughness_texture,
+    metallic_constant: metallic_constant,
+    metallic_texture_influence: metallic_texture_influence,
+    metallic_texture: metallic_texture,
+    specular_level: specular_level,
+    enable_ORM_texture: enable_ORM_texture,
+    ORM_texture: ORM_texture,
+    ao_to_diffuse: ao_to_diffuse,
+    ao_texture: ao_texture,
+	enable_emission: enable_emission,
+    emissive_color: emissive_color,
+    emissive_color_texture: emissive_color_texture, 
+    emissive_mask_texture: emissive_mask_texture,
+    emissive_intensity: emissive_intensity,      
+    enable_opacity: enable_opacity,          
+    opacity_texture: opacity_texture,         
+    opacity_constant: opacity_constant,        
+    enable_opacity_texture: enable_opacity_texture,  
+    opacity_mode: opacity_mode,            
+    opacity_threshold: opacity_threshold,
+    geometry_normal_roughness_strength:     geometry_normal_roughness_strength,
+    bump_factor: bump_factor,             
+    normalmap_texture: normalmap_texture,
+    detail_bump_factor: detail_bump_factor,      
+    detail_normalmap_texture: detail_normalmap_texture,
+    flip_tangent_u: flip_tangent_u,          
+    flip_tangent_v: flip_tangent_v,                  
+	project_uvw: project_uvw,
+    world_or_object: world_or_object,         
+    uv_space_index: uv_space_index,          
+    texture_translate: texture_translate,       
+    texture_rotate: texture_rotate,          
+    texture_scale: texture_scale,           
+    detail_texture_translate: detail_texture_translate,
+    detail_texture_rotate: detail_texture_rotate, 
+    detail_texture_scale: detail_texture_scale
+);
+
+} in material(
+surface:  base.surface,
+geometry: base.geometry
+);

saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/SubUSDs/materials/OmniPBRBase.mdl

@@ -0,0 +1,493 @@
+/***************************************************************************************************
+ * Copyright 2022 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+mdl 1.7;
+
+import ::df::*;
+import ::state::*;
+import ::math::*;
+import ::base::*;
+import ::tex::*;
+import ::anno::*;
+import ::anno::*;
+
+export float3 HemiOctahedronToUnitVector( float2 Oct ) [[
+	anno::hidden()
+]]
+{
+    Oct = float2( Oct.x + Oct.y, Oct.x - Oct.y ) * 0.5;
+    float3 N = float3( Oct.x, Oct.y, 1.0 - math::dot( float2(1.0), math::abs(Oct) ) );
+    return math::normalize(N);
+}
+
+export struct NormalData  [[
+	anno::hidden()
+]]
+{
+	float3 normal;
+	float2 roughness;
+};
+
+export NormalData tangent_space_normal_roughness_texture(
+    uniform texture_2d texture
+        [[
+            anno::description("The input texture"),
+            anno::usage("normal")
+        ]],
+    uniform float factor = 1.0f
+        [[ anno::description("Determines the degree of bumpiness") ]],
+    uniform bool flip_tangent_u = false
+        [[ anno::description("Can be used to fix mismatches between the object's tangent space and the normal map's tangent space") ]],
+    uniform bool flip_tangent_v = false
+        [[ anno::description("Can be used to fix mismatches between the object's tangent space and the normal map's tangent space") ]],
+    base::texture_coordinate_info uvw = base::texture_coordinate_info()
+        [[ anno::description("Parameterization to be used for texture mapping. Defaults to texture channel 0.") ]],
+    uniform float2 crop_u = float2( 0.0, 1.0)
+        [[ anno::description("Restricts the texture access to sub-domain of the texture in the u direction") ]],
+    uniform float2 crop_v = float2( 0.0, 1.0)
+        [[ anno::description("Restricts the texture access to sub-domain of the texture in the v direction") ]],
+    uniform tex::wrap_mode wrap_u = tex::wrap_repeat
+        [[ anno::description("Wrapping mode in the u direction") ]],
+    uniform tex::wrap_mode wrap_v = tex::wrap_repeat
+        [[ anno::description("Wrapping mode in the v direction") ]],
+    uniform bool clip = false
+        [[
+            anno::description("deprecated, usewrap_mode=tex::wrap_clip. Defines wrap_clamp behavior. If true, lookup outside [0,1] results in no bump"),
+            anno::hidden()
+        ]],
+    uniform float scale = 1.
+        [[
+            anno::description("Scales the value red from the texture file. Can be used to adapt to different normal map formats"),
+            anno::unused()
+        ]],
+    uniform float offset = 0.
+        [[
+            anno::description("Offset applied to the value red from the texture file. Can be used to adapt to different normal map formats"),
+            anno::unused()
+        ]],
+    uniform float animation_start_time = 0.
+        [[ anno::description("When to start playing first frame of the animation ") ]],
+    uniform int2 animation_crop  = int2(0, 0)
+        [[ anno::description("If the texture is an animation, the range of frames to be played can be specified.") ]],
+    uniform tex::wrap_mode animation_wrap = tex::wrap_repeat
+        [[ anno::description("Defines what to do outside of regular animation time") ]],
+    uniform float animation_fps = 30
+        [[ anno::description("Framerate to use for animation playback") ]]
+)
+[[
+    anno::description("Interprets the color values of a bitmap as a vector in tangent space"),
+	anno::hidden(),
+    anno::noinline()
+]]
+{
+	NormalData normalData;
+	normalData.roughness = float2(0);
+	normalData.normal = state::normal();
+
+    float frame = 0.0;
+    if(animation_crop != int2(0,0)) //only if we have an animation
+    {
+        frame = (::state::animation_time()-animation_start_time) * animation_fps ; //start playing at first frame of the animation
+        switch ( animation_wrap) {
+            case tex::wrap_repeat:
+                frame=frame>0?  math::fmod(frame,animation_crop.y-animation_crop.x)+animation_crop.x:
+                                math::fmod(frame,animation_crop.y-animation_crop.x)+animation_crop.y;
+                break;
+            case tex::wrap_mirrored_repeat:
+                float animation_crop_2y = 2.0*animation_crop.y;
+                frame=frame>0?  math::fmod(frame,(animation_crop.y-animation_crop.x)*2.0)+animation_crop.x:
+                                math::fmod(frame,(animation_crop.y-animation_crop.x)*2.0)+animation_crop_2y-animation_crop.x;
+                if(frame>animation_crop.y)
+                    frame = animation_crop_2y-frame;
+                break;
+            case tex::wrap_clamp:
+                frame = math::clamp( frame+animation_crop.x, animation_crop.x, animation_crop.y);
+                break;
+            case tex::wrap_clip:
+                frame += animation_crop.x;
+                if(frame < animation_crop.x || frame > animation_crop.y) return normalData;
+                break;
+        }
+    }
+
+    if (tex::width(texture) == 0 || tex::height(texture) == 0 || // avoid division by zero in texremapu for invalid resource
+        factor == 0.0f)
+        return normalData;
+    {
+        if (clip) {
+            if (wrap_u == tex::wrap_clamp && (uvw.position.x < 0. || uvw.position.x > 1.)) {
+                return normalData;
+            }
+            if (wrap_v == tex::wrap_clamp && (uvw.position.y < 0. || uvw.position.y > 1.)) {
+                return normalData;
+            }
+        }
+        if (wrap_u == tex::wrap_clip && (uvw.position.x < 0. || uvw.position.x > 1.)) {
+            return normalData;
+        }
+        if (wrap_v == tex::wrap_clip && (uvw.position.y < 0. || uvw.position.y > 1.)) {
+            return normalData;
+        }
+    }
+    bool pixel_flip_u = flip_tangent_u;
+    bool pixel_flip_v = flip_tangent_v;
+    //if we mirror repeat a tangent space texture, tangent space needs to be flipped for every other tile
+    if (wrap_u == tex::wrap_mirrored_repeat) {
+        if( uvw.position.x > 0. && int(uvw.position.x) % 2 == 1)
+            pixel_flip_u = ! pixel_flip_u;
+        else if( uvw.position.x < 0. && int(uvw.position.x) % 2 == 0)
+            pixel_flip_u = ! pixel_flip_u;
+    }
+    if (wrap_v == tex::wrap_mirrored_repeat) {
+        if( uvw.position.y > 0. && int(uvw.position.y) % 2 == 1)
+            pixel_flip_v = ! pixel_flip_v;
+        else if( uvw.position.y < 0. && int(uvw.position.y) % 2 == 0)
+            pixel_flip_v = ! pixel_flip_v;
+    }
+
+    float3 transformed_tangent_u = uvw.tangent_u;
+    float3 transformed_tangent_v = uvw.tangent_v;
+
+    if (pixel_flip_u)
+        transformed_tangent_u=-transformed_tangent_u;
+    if (pixel_flip_v)
+        transformed_tangent_v=-transformed_tangent_v;
+
+    float3 tangent_space_normal;
+	float4 normal_raw = tex::lookup_float4(texture,float2(uvw.position.x,uvw.position.y), wrap_u, wrap_v, crop_u, crop_v, frame);
+	if(normal_raw.x > 1.5)
+	{
+		// octahedron packed by OV
+		normal_raw.x -= 2.0;
+		normal_raw.x -= 0.5;
+		normal_raw.y -= 0.5;
+		tangent_space_normal = HemiOctahedronToUnitVector(float2(normal_raw.x, normal_raw.y) * 2.0);
+		normalData.roughness = float2(normal_raw.z, normal_raw.w);
+	}
+	else
+	{
+		// regular
+		tangent_space_normal = (float3(normal_raw.x, normal_raw.y, normal_raw.z) - float3(0.5)) * 2.0;
+		normalData.roughness = float2(0);
+	}
+
+	normalData.normal =  math::normalize(
+        transformed_tangent_u * tangent_space_normal.x * factor +
+        transformed_tangent_v * tangent_space_normal.y * factor +
+        state::normal() * tangent_space_normal.z);
+
+	return normalData;
+}
+
+
+export material OmniPBRBase(
+
+	
+    //  Albdeo  //
+
+	color diffuse_reflection_color = color(0.2) [[
+		anno::display_name("Albedo Color"),
+		anno::description("This is the albedo base color"),
+		anno::in_group("Albedo")
+	]],
+	color diffuse_tint = color(1.0) [[
+		anno::display_name("Albedo Tint"),
+		anno::description("When enabled, this color value is multiplied over the final albedo color"),
+		anno::in_group("Albedo")
+	]],
+
+	
+	//  Reflecitivity //
+	
+	float specular_reflection_roughness = float(0.0) [[
+		anno::display_name("Roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(0.0, 1.0)
+	]],
+	float2 specular_reflection_aniso_roughness = float2(0.0, 0.0) [[
+		anno::display_name("Aniso roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity"),
+		anno::hidden()
+	]],
+	float metalness = float(0.0) [[
+		anno::display_name("Metalness"),
+		anno::description("Bias towards pure specular reflection"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(0.0, 1.0)
+	]],	
+	float specular_level = float(0.5) [[
+		anno::display_name("Specular"),
+		anno::description("The specular level (intensity) of the material"),
+		anno::in_group("Reflectivity"),
+		anno::soft_range(0.0, 1.0)
+	]],
+
+
+	//  Emission  //
+	
+	uniform bool enable_emission = false [[
+		anno::display_name("Enable Emission"),
+		anno::description("Enables the emission of light from the material"),
+		anno::in_group("Emissive")
+	]],
+	color emission_color = color(1.0,0.1,0.1) [[
+		anno::display_name("Emissive Color"),
+		anno::description("The emission color"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true")
+	]],
+	float emission_intensity = float(40.0) [[
+		anno::display_name("Emissive Intensity"),    
+		anno::description("Intensity of the emission"),
+		anno::in_group("Emissive"),
+		anno::soft_range(0.0, 1000.0),
+		anno::enable_if("enable_emission == true")
+	]],
+
+	
+    //  Geometry Opacity  //
+	
+    uniform bool enable_opacity = false [[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+	float geometry_opacity = float(1.0) [[
+		anno::display_name("Opacity Amount"),    
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity"),
+		anno::hard_range(0.0, 1.0)
+	]],
+	uniform float geometry_opacity_threshold = 0.f
+	[[
+		anno::display_name("Opacity Threshold"),
+		anno::description("If 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity"),
+		anno::hard_range(0.0, 1.0)
+	]],
+
+	
+	//  Clearcoat // 
+	
+    uniform bool enable_coat = false [[
+		anno::display_name("Enable Clearcoat Layer"),
+		anno::description("Adds a coat layer on top of the material when enabled"),
+		anno::in_group("Clearcoat")
+	]],
+	float coat_weight = float(1.0) [[
+		anno::display_name("Clearcoat Weight"),
+		anno::description("Sets the weight for coat layer"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(0.0, 1.0)
+	]],
+	color coat_color = color(1.0) [[
+		anno::display_name("Clearcoat Tint"),
+		anno::description("Clearcoat is tinted and affects the underlying material"),
+		anno::in_group("Clearcoat")
+	]],
+	float coat_transparency = float(1.0) [[
+		anno::display_name("Clearcoat Transparency"),
+		anno::description("Adjusts the transparency of the coat. Can be turned into a fully opaque coat covering the underlying layer"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(0.0, 1.0)
+	]],
+	float coat_roughness = float(0.0) [[
+		anno::display_name("Clearcoat Roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(0.0, 1.0)
+	]],
+	float2 coat_aniso_roughness = float2(0.0, 0.0) [[
+		anno::display_name("Clearcoat aniso roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Clearcoat"),
+		anno::hidden()
+	]],
+	float coat_ior = float(1.56) [[
+		anno::display_name("Clearcoat IOR"),
+		anno::description("Sets the Index of refraction for the coat layer"),
+		anno::in_group("Clearcoat"),
+		anno::soft_range(0.0, 4.0)
+	]],
+    float3 clearcoat_geometry_normal = state::normal() [[
+        anno::display_name("Clearcoat Normal"),
+        anno::in_group("Clearcoat"),
+        anno::usage("normal")
+    ]],
+
+
+	//  Geometry  //
+
+    uniform float round_edges_radius = float(0.0) [[
+        anno::display_name("Round Edge Radius"),
+        anno::description("Influence radius around the edges in meters"),
+        anno::in_group("Geometry"),
+        anno::soft_range(0.0, 1.0)
+    ]],
+    uniform float round_edges_roundness = float(1.0) [[
+        anno::display_name("Round Edge Roundness"),
+        anno::description("Determines how round the edge will look"),
+        anno::in_group("Geometry"),
+        anno::hard_range(0.0, 1.0)
+    ]],
+    uniform bool round_edges_across_materials = false [[
+        anno::display_name("Round Edge Across Materials"),
+        anno::description("Normal smoothing happens only between facets of equal material, \n"
+                          "\t\tunless this parameter is set true, in which case the smoothing \n"
+                          "\t\thappens between facets irrespective of their materials"),
+        anno::in_group("Geometry")
+    ]],
+    float3 geometry_normal = state::normal() [[
+        anno::display_name("Geometry Normal"),
+        anno::in_group("Geometry"),
+        anno::usage("normal")
+    ]]
+
+) 
+[[
+	anno::display_name("OmniPBR Base"),
+	anno::description("OmniPBR Base with support for clear coat, opacity and ORM textures."),
+ 	anno::in_group("Omni Materials"),
+	anno::version( 2, 1, 1),
+	anno::author("NVIDIA CORPORATION"), 
+	anno::key_words(string[]("omni", "PBR", "opacity", "omniverse", "generic"))
+]]
+ = let{
+
+    //  Diffuse Bsdf  //	
+    
+    color tinted_diffuse_color = diffuse_reflection_color * diffuse_tint;
+
+    color base_color = tinted_diffuse_color;
+
+    bsdf diffuse_bsdf = df::weighted_layer(
+		weight: 1.0,
+		layer:  df::diffuse_reflection_bsdf(
+			        tint:       base_color,
+			        roughness:  float(0.0)
+                ),
+		base:   bsdf(),
+		normal: geometry_normal
+	);
+
+	//  Glossy Reflection Bsdf  //
+
+	float roughness_u = math::clamp(specular_reflection_roughness * specular_reflection_roughness
+		+ specular_reflection_aniso_roughness.x * specular_reflection_aniso_roughness.x, 0, 1);
+	float roughness_v = math::clamp(specular_reflection_roughness * specular_reflection_roughness
+		+ specular_reflection_aniso_roughness.y * specular_reflection_aniso_roughness.y, 0, 1);
+	bsdf ggx_smith_bsdf = df::microfacet_ggx_smith_bsdf(
+		roughness_u:    roughness_u,
+		roughness_v:    roughness_v,
+		tint:           color(1.0),
+		mode:           df::scatter_reflect
+	);
+	
+	bsdf custom_curve_layer_bsdf = df::custom_curve_layer(
+		normal_reflectivity:  0.08,		
+		grazing_reflectivity: 1.0,
+		exponent:	          5.0,
+		weight:	              specular_level,
+		layer:                ggx_smith_bsdf,
+		base:	              diffuse_bsdf,
+		normal:               geometry_normal
+	);
+	
+	bsdf directional_factor_bsdf = df::tint(base_color, ggx_smith_bsdf);
+	
+	bsdf omni_PBR_bsdf = df::weighted_layer(
+        weight:     metalness,
+        layer:	    directional_factor_bsdf,
+		base:	    custom_curve_layer_bsdf,
+		normal:     geometry_normal
+	);
+	
+	//  Clear Coat  // 
+
+	float coat_roughness_u = math::clamp(coat_roughness * coat_roughness
+		+ coat_aniso_roughness.x * coat_aniso_roughness.x, 0, 1);
+	float coat_roughness_v = math::clamp(coat_roughness * coat_roughness
+		+ coat_aniso_roughness.y * coat_aniso_roughness.y, 0, 1);
+	bsdf coat_bsdf = df::microfacet_ggx_smith_bsdf(
+		roughness_u: coat_roughness_u,
+		roughness_v: coat_roughness_v,
+		tint:        color(1.0),
+		mode:        df::scatter_reflect
+	);
+	
+	bsdf opaque_coat = df::weighted_layer(
+        weight:     coat_transparency,
+		layer:	    ::df::tint( 
+					    tint: coat_color,
+					    base: omni_PBR_bsdf
+                    ),
+		base:	    ::df::diffuse_reflection_bsdf(
+					    tint: coat_color
+                    )
+	);
+	
+	bsdf omni_PBR_coated_bsdf = df::fresnel_layer(
+		ior:     coat_ior,
+		weight:  coat_weight,
+		layer:   coat_bsdf,
+		base:    opaque_coat,
+		normal:  clearcoat_geometry_normal 
+	);
+	
+    bsdf final_bsdf = enable_coat ? omni_PBR_coated_bsdf : omni_PBR_bsdf;
+                                    
+    color emission_value = enable_emission ? emission_color * color(emission_intensity) : color(0.0);
+	
+	float opacity_value = geometry_opacity;
+    float cutout_opacity = enable_opacity ? ((geometry_opacity_threshold == 0.0) ? opacity_value : ((opacity_value >= geometry_opacity_threshold) ? 1.0 : 0)) : 1.0;
+ 
+    material_emission emission = material_emission(
+                                    df::diffuse_edf(),
+                                    intensity: emission_value 
+                                    );
+
+    material_surface surface =  material_surface(
+		                            scattering: final_bsdf,
+		                            emission:   emission
+		                            );
+
+    material_geometry geometry = material_geometry(
+                                    normal: state::rounded_corner_normal(
+                                        radius: round_edges_radius,
+                                        across_materials: round_edges_across_materials,
+                                        roundness: round_edges_roundness
+                                    ),
+                                    cutout_opacity: cutout_opacity
+                                    );
+
+} in material(
+	surface: surface,
+	geometry: geometry
+);

saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/SubUSDs/materials/OmniPBRBase_1.mdl

@@ -0,0 +1,461 @@
+/***************************************************************************************************
+ * Copyright 2022 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+mdl 1.7;
+
+import ::df::*;
+import ::state::*;
+import ::math::*;
+import ::base::*;
+import ::tex::*;
+import ::anno::*;
+import ::anno::*;
+
+export float3 HemiOctahedronToUnitVector( float2 Oct )
+{
+    Oct = float2( Oct.x + Oct.y, Oct.x - Oct.y ) * 0.5;
+    float3 N = float3( Oct.x, Oct.y, 1.0 - math::dot( float2(1.0), math::abs(Oct) ) );
+    return math::normalize(N);
+}
+
+export struct NormalData {
+	float3 normal;
+	float2 roughness;
+};
+
+export NormalData tangent_space_normal_roughness_texture(
+    uniform texture_2d texture
+        [[
+            anno::description("The input texture"),
+            anno::usage("normal")
+        ]],
+    uniform float factor = 1.0f
+        [[ anno::description("Determines the degree of bumpiness") ]],
+    uniform bool flip_tangent_u = false
+        [[ anno::description("Can be used to fix mismatches between the object's tangent space and the normal map's tangent space") ]],
+    uniform bool flip_tangent_v = false
+        [[ anno::description("Can be used to fix mismatches between the object's tangent space and the normal map's tangent space") ]],
+    base::texture_coordinate_info uvw = base::texture_coordinate_info()
+        [[ anno::description("Parameterization to be used for texture mapping. Defaults to texture channel 0.") ]],
+    uniform float2 crop_u = float2( 0.0, 1.0)
+        [[ anno::description("Restricts the texture access to sub-domain of the texture in the u direction") ]],
+    uniform float2 crop_v = float2( 0.0, 1.0)
+        [[ anno::description("Restricts the texture access to sub-domain of the texture in the v direction") ]],
+    uniform tex::wrap_mode wrap_u = tex::wrap_repeat
+        [[ anno::description("Wrapping mode in the u direction") ]],
+    uniform tex::wrap_mode wrap_v = tex::wrap_repeat
+        [[ anno::description("Wrapping mode in the v direction") ]],
+    uniform bool clip = false
+        [[
+            anno::description("deprecated, usewrap_mode=tex::wrap_clip. Defines wrap_clamp behavior. If true, lookup outside [0,1] results in no bump"),
+            anno::hidden()
+        ]],
+    uniform float scale = 1.
+        [[
+            anno::description("Scales the value red from the texture file. Can be used to adapt to different normal map formats"),
+            anno::unused()
+        ]],
+    uniform float offset = 0.
+        [[
+            anno::description("Offset applied to the value red from the texture file. Can be used to adapt to different normal map formats"),
+            anno::unused()
+        ]],
+    uniform float animation_start_time = 0.
+        [[ anno::description("When to start playing first frame of the animation ") ]],
+    uniform int2 animation_crop  = int2(0, 0)
+        [[ anno::description("If the texture is an animation, the range of frames to be played can be specified.") ]],
+    uniform tex::wrap_mode animation_wrap = tex::wrap_repeat
+        [[ anno::description("Defines what to do outside of regular animation time") ]],
+    uniform float animation_fps = 30
+        [[ anno::description("Framerate to use for animation playback") ]]
+)
+[[
+    anno::description("Interprets the color values of a bitmap as a vector in tangent space"),
+    anno::noinline()
+]]
+{
+	NormalData normalData;
+	normalData.roughness = float2(0);
+	normalData.normal = state::normal();
+
+    float frame = 0.0;
+    if(animation_crop != int2(0,0)) //only if we have an animation
+    {
+        frame = (::state::animation_time()-animation_start_time) * animation_fps ; //start playing at first frame of the animation
+        switch ( animation_wrap) {
+            case tex::wrap_repeat:
+                frame=frame>0?  math::fmod(frame,animation_crop.y-animation_crop.x)+animation_crop.x:
+                                math::fmod(frame,animation_crop.y-animation_crop.x)+animation_crop.y;
+                break;
+            case tex::wrap_mirrored_repeat:
+                float animation_crop_2y = 2.0*animation_crop.y;
+                frame=frame>0?  math::fmod(frame,(animation_crop.y-animation_crop.x)*2.0)+animation_crop.x:
+                                math::fmod(frame,(animation_crop.y-animation_crop.x)*2.0)+animation_crop_2y-animation_crop.x;
+                if(frame>animation_crop.y)
+                    frame = animation_crop_2y-frame;
+                break;
+            case tex::wrap_clamp:
+                frame = math::clamp( frame+animation_crop.x, animation_crop.x, animation_crop.y);
+                break;
+            case tex::wrap_clip:
+                frame += animation_crop.x;
+                if(frame < animation_crop.x || frame > animation_crop.y) return normalData;
+                break;
+        }
+    }
+
+    if (tex::width(texture) == 0 || tex::height(texture) == 0 || // avoid division by zero in texremapu for invalid resource
+        factor == 0.0f)
+        return normalData;
+    {
+        if (clip) {
+            if (wrap_u == tex::wrap_clamp && (uvw.position.x < 0. || uvw.position.x > 1.)) {
+                return normalData;
+            }
+            if (wrap_v == tex::wrap_clamp && (uvw.position.y < 0. || uvw.position.y > 1.)) {
+                return normalData;
+            }
+        }
+        if (wrap_u == tex::wrap_clip && (uvw.position.x < 0. || uvw.position.x > 1.)) {
+            return normalData;
+        }
+        if (wrap_v == tex::wrap_clip && (uvw.position.y < 0. || uvw.position.y > 1.)) {
+            return normalData;
+        }
+    }
+    bool pixel_flip_u = flip_tangent_u;
+    bool pixel_flip_v = flip_tangent_v;
+    //if we mirror repeat a tangent space texture, tangent space needs to be flipped for every other tile
+    if (wrap_u == tex::wrap_mirrored_repeat) {
+        if( uvw.position.x > 0. && int(uvw.position.x) % 2 == 1)
+            pixel_flip_u = ! pixel_flip_u;
+        else if( uvw.position.x < 0. && int(uvw.position.x) % 2 == 0)
+            pixel_flip_u = ! pixel_flip_u;
+    }
+    if (wrap_v == tex::wrap_mirrored_repeat) {
+        if( uvw.position.y > 0. && int(uvw.position.y) % 2 == 1)
+            pixel_flip_v = ! pixel_flip_v;
+        else if( uvw.position.y < 0. && int(uvw.position.y) % 2 == 0)
+            pixel_flip_v = ! pixel_flip_v;
+    }
+
+    float3 transformed_tangent_u = uvw.tangent_u;
+    float3 transformed_tangent_v = uvw.tangent_v;
+
+    if (pixel_flip_u)
+        transformed_tangent_u=-transformed_tangent_u;
+    if (pixel_flip_v)
+        transformed_tangent_v=-transformed_tangent_v;
+
+    float3 tangent_space_normal;
+	float4 normal_raw = tex::lookup_float4(texture,float2(uvw.position.x,uvw.position.y), wrap_u, wrap_v, crop_u, crop_v, frame);
+	if(normal_raw.x > 1.5)
+	{
+		// octahedron packed by OV
+		normal_raw.x -= 2.0;
+		normal_raw.x -= 0.5;
+		normal_raw.y -= 0.5;
+		tangent_space_normal = HemiOctahedronToUnitVector(float2(normal_raw.x, normal_raw.y) * 2.0);
+		normalData.roughness = float2(normal_raw.z, normal_raw.w);
+	}
+	else
+	{
+		// regular
+		tangent_space_normal = (float3(normal_raw.x, normal_raw.y, normal_raw.z) - float3(0.5)) * 2.0;
+		normalData.roughness = float2(0);
+	}
+
+	normalData.normal =  math::normalize(
+        transformed_tangent_u * tangent_space_normal.x * factor +
+        transformed_tangent_v * tangent_space_normal.y * factor +
+        state::normal() * tangent_space_normal.z);
+
+	return normalData;
+}
+
+
+export material OmniPBRBase(
+
+	
+    //  Albdeo  //
+
+	color diffuse_reflection_color = color(0.2) [[
+		anno::display_name("Albedo Color"),
+		anno::description("This is the albedo base color"),
+		anno::in_group("Albedo")
+	]],
+	color diffuse_tint = color(1.0) [[
+		anno::display_name("Albedo Tint"),
+		anno::description("When enabled, this color value is multiplied over the final albedo color"),
+		anno::in_group("Albedo")
+	]],
+
+	
+	//  Reflecitivity //
+	
+	float specular_reflection_roughness = float(0.0) [[
+		anno::display_name("Roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity")
+	]],
+	float2 specular_reflection_aniso_roughness = float2(0.0, 0.0) [[
+		anno::display_name("Aniso roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity"),
+		anno::hidden()
+	]],
+	float metalness = float(0.0) [[
+		anno::display_name("Metalness"),
+		anno::description("Bias towards pure specular reflection"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],	
+	float specular_level = float(0.5) [[
+		anno::display_name("Specular"),
+		anno::description("The specular level (intensity) of the material"),
+		anno::in_group("Reflectivity"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+
+
+	//  Emission  //
+	
+	uniform bool enable_emission = false [[
+        	anno::display_name("Enable Emission"),
+		anno::description("Enables the emission of light from the material"),
+		anno::in_group("Emissive")
+	]],
+	color emission_color = color(1.0,0.1,0.1) [[
+		anno::display_name("Emissive Color"),
+		anno::description("The emission color"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true")
+	]],
+	float emission_intensity = float(40.0) [[
+		anno::display_name("Emissive Intensity"),    
+		anno::description("Intensity of the emission"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true")
+	]],
+
+	
+    //  Geometry Opacity  //
+	
+    uniform bool enable_opacity = false [[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+	float geometry_opacity = float(1.0) [[
+		anno::display_name("Opacity Amount"),    
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform float geometry_opacity_threshold = 0.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Threshold"),
+		anno::description("If 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity")
+	]],
+
+	
+	//  Clearcoat // 
+	
+    uniform bool enable_coat = false [[
+		anno::display_name("Enable Clearcoat Layer"),
+		anno::description("Adds a coat layer on top of the material when enabled"),
+		anno::in_group("Clearcoat")
+	]],
+	float coat_weight = float(1.0) [[
+		anno::display_name("Clearcoat Weight"),
+		anno::description("Sets the weight for coat layer"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	color coat_color = color(1.0) [[
+		anno::display_name("Clearcoat Tint"),
+		anno::description("Clearcoat is tinted and affects the underlying material"),
+		anno::in_group("Clearcoat")
+	]],
+	float coat_transparency = float(1.0) [[
+		anno::display_name("Clearcoat Transparency"),
+		anno::description("Adjusts the transparency of the coat. Can be turned into a fully opaque coat covering the underlying layer"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	float coat_roughness = float(0.0) [[
+		anno::display_name("Clearcoat Roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Clearcoat")
+	]],
+	float2 coat_aniso_roughness = float2(0.0, 0.0) [[
+		anno::display_name("Clearcoat aniso roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Clearcoat"),
+		anno::hidden()
+	]],
+	float coat_ior = float(1.56) [[
+		anno::display_name("Clearcoat IOR"),
+		anno::description("Sets the Index of refraction for the coat layer"),
+		anno::in_group("Clearcoat"),
+		anno::soft_range(float(0.0), float(4.0))
+	]],
+    float3 clearcoat_geometry_normal = state::normal() [[
+        anno::display_name("Clearcoat Normal"),
+        anno::in_group("Clearcoat"),
+        anno::usage("normal")
+    ]],
+
+
+	//  Geometry  //
+
+    float3 geometry_normal = state::normal() [[
+        anno::display_name("Geometry Normal"),
+        anno::in_group("Geometry"),
+        anno::usage("normal")
+    ]]
+
+) 
+[[
+	anno::display_name("OmniPBR Base"),
+	anno::description("OmniPBR Base with support for clear coat, opacity and ORM textures."),
+ 	anno::in_group("Base"),
+	anno::version( 2, 1, 1),
+	anno::author("NVIDIA CORPORATION"), 
+	anno::key_words(string[]("omni", "PBR", "opacity", "omniverse", "generic"))
+]]
+ = let{
+
+    //  Diffuse Bsdf  //	
+    
+    color tinted_diffuse_color = diffuse_reflection_color * diffuse_tint;
+
+    color base_color = tinted_diffuse_color;
+
+    bsdf diffuse_bsdf = df::weighted_layer(
+		weight: 1.0,
+		layer:  df::diffuse_reflection_bsdf(
+			        tint:       base_color,
+			        roughness:  float(0.0)
+                ),
+		base:   bsdf(),
+		normal: enable_coat ? geometry_normal : state::normal()
+	);
+
+	//  Glossy Reflection Bsdf  //
+
+	float roughness_u = math::clamp(specular_reflection_roughness * specular_reflection_roughness
+		+ specular_reflection_aniso_roughness.x * specular_reflection_aniso_roughness.x, 0, 1);
+	float roughness_v = math::clamp(specular_reflection_roughness * specular_reflection_roughness
+		+ specular_reflection_aniso_roughness.y * specular_reflection_aniso_roughness.y, 0, 1);
+	bsdf ggx_smith_bsdf = df::microfacet_ggx_smith_bsdf(
+		roughness_u:    roughness_u,
+		roughness_v:    roughness_v,
+		tint:           color(1.0),
+		mode:           df::scatter_reflect
+	);
+	
+	bsdf custom_curve_layer_bsdf = df::custom_curve_layer(
+		normal_reflectivity:  0.08,		
+		grazing_reflectivity: 1.0,
+		exponent:	          5.0,
+		weight:	              specular_level,
+		layer:                ggx_smith_bsdf,
+		base:	              diffuse_bsdf,
+		normal:               enable_coat ? geometry_normal : state::normal()
+	);
+	
+	bsdf directional_factor_bsdf = df::tint(base_color, ggx_smith_bsdf);
+	
+	bsdf omni_PBR_bsdf = df::weighted_layer(
+        weight:     metalness,
+        layer:	    directional_factor_bsdf,
+		base:	    custom_curve_layer_bsdf,
+		normal:     enable_coat ? geometry_normal : state::normal() 
+	);
+	
+	//  Clear Coat  // 
+
+	float coat_roughness_u = math::clamp(coat_roughness * coat_roughness
+		+ coat_aniso_roughness.x * coat_aniso_roughness.x, 0, 1);
+	float coat_roughness_v = math::clamp(coat_roughness * coat_roughness
+		+ coat_aniso_roughness.y * coat_aniso_roughness.y, 0, 1);
+	bsdf coat_bsdf = df::microfacet_ggx_smith_bsdf(
+		roughness_u: coat_roughness_u,
+		roughness_v: coat_roughness_v,
+		tint:        color(1.0),
+		mode:        df::scatter_reflect
+	);
+	
+	bsdf opaque_coat = df::weighted_layer(
+        weight:     coat_transparency,
+		layer:	    ::df::tint( 
+					    tint: coat_color,
+					    base: omni_PBR_bsdf
+                    ),
+		base:	    ::df::diffuse_reflection_bsdf(
+					    tint: coat_color
+                    )
+	);
+	
+	bsdf omni_PBR_coated_bsdf = df::fresnel_layer(
+		ior:     coat_ior,
+		weight:  coat_weight,
+		layer:   coat_bsdf,
+		base:    opaque_coat,
+		normal:  clearcoat_geometry_normal 
+	);
+	
+    bsdf final_bsdf = enable_coat ? omni_PBR_coated_bsdf : omni_PBR_bsdf;
+                                    
+    color emission_value = enable_emission ? emission_color * color(emission_intensity) : color(0.0);
+	
+	float opacity_value = geometry_opacity;
+    float cutout_opacity = enable_opacity ? ((geometry_opacity_threshold == 0.0) ? opacity_value : ((opacity_value >= geometry_opacity_threshold) ? 1.0 : 0)) : 1.0;
+ 
+    material_emission emission = material_emission(
+                                    df::diffuse_edf(),
+                                    intensity: emission_value 
+                                    );
+
+    material_surface surface =  material_surface(
+		                            scattering: final_bsdf,
+		                            emission:   emission
+		                            );
+
+    material_geometry geometry = material_geometry(
+                                    normal: enable_coat ? state::normal(): geometry_normal,
+                                    cutout_opacity: cutout_opacity
+                                    );
+
+} in material(
+	surface: surface,
+	geometry: geometry
+);

saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/SubUSDs/materials/OmniPBR_ClearCoat.mdl

@@ -0,0 +1,707 @@
+/***************************************************************************************************
+ * Copyright 2022 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+mdl 1.7;
+
+import ::df::*;
+import ::state::*;
+import ::math::*;
+import ::base::*;
+import ::state::*;
+import ::tex::*;
+import ::anno::*;
+
+import ::debug::*;
+
+import ::nvidia::core_definitions::file_texture;
+import ::nvidia::core_definitions::normalmap_texture;
+
+import OmniPBRBase_1::*;
+
+//  Functions  //
+
+
+//  Returns a matrix from R,T,S. inputs //
+
+uniform float4x4 rotation_translation_scale(
+    uniform float3 rotation = float3(0.)
+        [[ anno::description("Rotation applied to every UVW coordinate") ]],
+    uniform float3 translation = float3(0.)
+        [[ anno::description("Offset applied to every UVW coordinate") ]],
+    uniform float3 scaling = float3(1.)
+        [[ anno::description("Scale applied to every UVW coordinate") ]]
+)
+[[
+    anno::description("Construct a transformation matrix from euler rotation, translation and scale"),
+    anno::hidden()
+]]
+{
+    float4x4 scale =
+        float4x4(scaling.x         , 0.0               , 0.0               , 0.0,
+                 0.0               , scaling.y         , 0.0               , 0.0,
+                 0.0               , 0.0               , scaling.z         , 0.0,
+                 translation.x     , translation.y     , translation.z     , 1.0);
+
+    float3 s = math::sin(rotation);
+    float3 c = math::cos(rotation);
+    
+    float4x4 rotate =
+        float4x4(  c.y*c.z    , -c.x*s.z + s.x*s.y*c.z ,  s.x*s.z + c.x*s.y*c.z , 0.0,
+                   c.y*s.z    ,  c.x*c.z + s.x*s.y*s.z , -s.x*c.z + c.x*s.y*s.z , 0.0,
+                  -s.y        ,  s.x*c.y               ,  c.x*c.y               , 0.0,
+                   0.0        ,  0.0                   ,  0                     , 1.0);
+
+    return   scale * rotate;
+}
+
+//  Returns the normal n in tangent space, given n is in internal space. //
+
+float3 transform_internal_to_tangent(float3 n)
+{
+	/* flip_tangent_v */
+    return
+        n.x* float3(state::texture_tangent_u(0).x,-state::texture_tangent_v(0).x,state::normal().x)+
+        n.y* float3(state::texture_tangent_u(0).y,-state::texture_tangent_v(0).y,state::normal().y)+
+        n.z* float3(state::texture_tangent_u(0).z,-state::texture_tangent_v(0).z,state::normal().z);
+}
+
+//  Returns the normal n in internal space, given n is in tangent space.
+float3 transform_tangent_to_internal(float3 n)
+{
+    return  state::texture_tangent_u(0) * n.x -
+            state::texture_tangent_v(0) * n.y + /* flip_tangent_v */
+            state::normal() * n.z;
+}
+
+//  Returns a normal by adding a detail normal to a global normal.
+export float3 add_detail_normal(float3 nd = state::normal(), float3 n = state::normal())
+{
+    // http://blog.selfshadow.com/publications/blending-in-detail/
+    float3  n_t = transform_internal_to_tangent(n);
+    float3 nd_t = transform_internal_to_tangent(nd);
+            n_t = n_t + float3(0.,0.,1.);
+           nd_t = nd_t *  float3(-1.,-1.,1.);
+              n = n_t * math::dot(n_t, nd_t)/n_t.z - nd_t;
+    return math::normalize(transform_tangent_to_internal(n));
+}
+
+base::texture_return multiply_colors(
+    color color_1 = color(1.0, 1.0, 1.0),
+    color color_2 = color(.5, .5, .5),
+	float weight  = 1.0
+    ) 
+[[ 
+    anno::hidden() 
+]]
+{
+    return base::blend_color_layers(
+                layers: base::color_layer[](
+                    base::color_layer(
+                        layer_color:    color_2,
+                        weight:         weight,
+                        mode:           base::color_layer_multiply
+                        )),
+                base: color_1
+            );
+}
+
+
+//  OmniPBR Clearcoat  //
+
+export material OmniPBR_ClearCoat(
+
+    //  Albdeo  //
+
+	color diffuse_color_constant = color(0.2) [[
+		anno::display_name("Albedo Color"),
+		anno::description("This is the albedo base color"),
+		anno::in_group("Albedo")
+	]],
+	uniform texture_2d diffuse_texture = texture_2d() [[
+		anno::display_name("Albedo Map"),
+		anno::in_group("Albedo")
+	]],
+	float albedo_desaturation = float(0.0) [[
+		anno::display_name("Albedo Desaturation"),
+		anno::description("Desaturates the diffuse color"),
+		anno::in_group("Albedo"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	float albedo_add = float(0.0) [[
+		anno::display_name("Albedo Add"),
+		anno::description("Adds a constant value to the diffuse color "),
+		anno::in_group("Albedo"),
+		anno::soft_range(float(-1.0), float(1.0))
+	]],	
+	float albedo_brightness = float(1.0) [[
+		anno::display_name("Albedo Brightness"),
+		anno::description("Multiplier for the diffuse color "),
+		anno::in_group("Albedo"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],	
+	color diffuse_tint = color(1.0) [[
+		anno::display_name("Color Tint"),
+		anno::description("When enabled, this color value is multiplied over the final albedo color"),
+		anno::in_group("Albedo")
+	]],
+	
+
+	//  Reflectivity //
+	
+	float reflection_roughness_constant  = float(0.5) [[
+		anno::display_name("Roughness Amount"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	float reflection_roughness_texture_influence = float(0.0) [[
+		anno::display_name("Roughness Map Influence"),
+		anno::description("Blends between the constant value and the lookup of the roughness texture"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d reflectionroughness_texture = texture_2d() [[
+		anno::display_name("Roughness Map"),
+		anno::in_group("Reflectivity"),
+		anno::usage("roughness")
+	]],
+	float metallic_constant = float(0.0) [[
+		anno::display_name("Metallic Amount"),
+		anno::description("Metallic Material"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],	
+	float metallic_texture_influence = float(0.0) [[
+		anno::display_name("Metallic Map Influence"),
+		anno::description("Blends between the constant value and the lookup of the metallic texture"),
+		anno::in_group("Reflectivity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d metallic_texture = texture_2d() [[
+		anno::display_name("Metallic Map"),
+		anno::in_group("Reflectivity"),
+		anno::usage("metalness")
+	]], 
+	float specular_level = float(0.5) [[
+		anno::display_name("Specular"),
+		anno::description("The specular level (intensity) of the material"),
+		anno::in_group("Reflectivity"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	
+
+	//  ORM  //
+ 
+	uniform bool enable_ORM_texture = false [[
+		anno::display_name("Enable ORM Texture"),
+		anno::description("The ORM texture will be used to extract the Occlusion, Roughness and Metallic textures from R,G,B channels"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d ORM_texture = texture_2d() [[
+		anno::display_name("ORM Map"),
+		anno::description("Texture that has Occlusion, Roughness and Metallic maps stored in their respective R, G and B channels"),
+		anno::in_group("Reflectivity"),
+		anno::usage("roughness")
+	]],
+
+
+	//  AO Group  // 
+
+	float ao_to_diffuse = 0.0 [[
+		anno::display_name("AO to diffuse"),
+		anno::description("Controls the amount of ambient occlusion multiplied against the diffuse color channel"),
+		anno::in_group("AO"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d ao_texture = texture_2d() [[
+		anno::display_name("Ambient Occlusion Map"),
+		anno::description("The ambient occlusion texture for the material"),
+		anno::in_group("AO"),
+		anno::usage("occlusion")
+	]],
+	
+	
+	//  Emission //  
+
+	uniform bool enable_emission = false [[
+        anno::display_name("Enable Emission"),
+		anno::description("Enables the emission of light from the material"),
+		anno::in_group("Emissive")
+	]],
+	color emissive_color = color(1.0,0.1,0.1) [[
+		anno::display_name("Emissive Color"),
+		anno::description("The emission color"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true")
+	]],
+    	uniform texture_2d emissive_color_texture = texture_2d() [[ 
+		anno::display_name("Emissive Color map"),
+        anno::in_group("Emissive"),
+		anno::description("The emissive color texture"),
+        anno::enable_if("enable_emission == true")
+    	]],	
+	uniform texture_2d emissive_mask_texture = texture_2d() [[
+		anno::display_name("Emissive Mask map"),
+		anno::description("The texture masking the emissive color"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true"),
+		anno::usage("occlusion")
+	]],
+	float emissive_intensity = float(40.0) [[
+		anno::display_name("Emissive Intensity"),    
+		anno::description("Intensity of the emission"),
+		anno::in_group("Emissive"),
+		anno::enable_if("enable_emission == true")
+	]],	
+
+
+    //  Cutout Opacity  //
+	
+    uniform bool enable_opacity = false [[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+ 	uniform texture_2d opacity_texture = texture_2d() [[
+		anno::display_name("Opacity Map"),
+		anno::in_group("Opacity"),
+		anno::usage("opacity")
+	]],
+	float opacity_constant = float(1.0) [[
+		anno::display_name("Opacity Amount"),    
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	uniform bool enable_opacity_texture = false [[
+		anno::display_name("Enable Opacity Texture"),
+		anno::description("Enables or disables the usage of the opacity texture map"),
+		anno::in_group("Opacity")
+	]],
+	uniform base::mono_mode opacity_mode = base::mono_average [[
+		anno::display_name("Opacity Mono Source"),
+		anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum"),
+		anno::in_group("Opacity")
+	]],
+	uniform float opacity_threshold = float(0.0) [[
+		anno::display_name("Opacity Threshold"),
+		anno::description("If 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+
+
+	//  Clearcoat // 
+	
+	uniform bool enable_clearcoat = false [[
+		anno::display_name("Enable Clearcoat Layer"),
+		anno::description("Adds a clearcoat layer on top of the material when enabled"),
+		anno::in_group("Clearcoat")
+	]],
+	float clearcoat_weight = float(1.0) [[
+		anno::display_name("Clearcoat Weight"),
+		anno::description("Sets the weight for clearcoat layer"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	color clearcoat_tint = color(1.0) [[
+		anno::display_name("Clearcoat Tint"),
+		anno::description("Clearcoat is tinted and affects the underlying material"),
+		anno::in_group("Clearcoat")
+	]],
+	float clearcoat_transparency = float(1.0) [[
+		anno::display_name("Clearcoat Transparency"),
+		anno::description("Adjusts the transparency of the clearcoat. Can be turned into a fully opaque clearcoat covering the underlying layer"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	float clearcoat_reflection_roughness = float(0.0) [[
+		anno::display_name("Clearcoat Roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+	float clearcoat_ior = float(1.56) [[
+		anno::display_name("Clearcoat IOR"),
+		anno::description("Sets the Index of refraction for the clearcoat layer"),
+		anno::in_group("Clearcoat"),
+		anno::soft_range(float(0.0), float(4.0))
+	]],
+	uniform float clearcoat_bump_factor = float(1.0) [[
+		anno::display_name("Clearcoat Normal Map Strength"),
+		anno::description("Strength of normal map."),
+		anno::in_group("Clearcoat"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d clearcoat_normalmap_texture = texture_2d() [[
+		anno::display_name("Clearcoat Normal Map"),
+		anno::description("Enables the usage of the normalmap texture"),
+		anno::in_group("Clearcoat"),
+		anno::usage("normal")
+	]], 	
+	uniform float2 clearcoat_texture_translate =  float2(0.0) [[
+		anno::display_name("Clearcoat Texture Translate"),
+		anno::description("Controls the position of the clearcoat texture"),
+		anno::ui_order(1),
+		anno::in_group("UV")
+	]],
+	uniform float clearcoat_texture_rotate = float(0.0) [[
+		anno::display_name("Clearcoat Texture Rotate"),
+		anno::description("Rotates angle of the clearcoat texture in degrees"),
+		anno::ui_order(2),
+		anno::in_group("UV")
+	]],
+	uniform float2 clearcoat_texture_scale = float2(1.0) [[
+		anno::display_name("Clearcoat Texture Tiling"),
+		anno::description("Controls the repetition of the clearcoat texture"),
+		anno::ui_order(3),
+		anno::in_group("UV")
+	]],
+	float clearcoat_flatten = float(1.0) [[
+		anno::display_name("Clearcoat Flatten"),
+		anno::description("Flattens the clearcoat to even out the underlying bump maps"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(float(0.0), float(1.0))
+	]],
+
+
+	//  Normal  // 
+	
+	uniform float geometry_normal_roughness_strength = 1.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Normal map to roughness weight"),
+		anno::description("Enables and weights roughness induced by normal maps"),
+		anno::in_group("Normal")
+	]],
+	uniform float bump_factor = float(1.0) [[
+		anno::display_name("Normal Strength"),
+		anno::description("Strength of normal map"),
+		anno::in_group("Normal"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d normalmap_texture = texture_2d() [[
+		anno::display_name("Normal Map"),
+		anno::in_group("Normal"),
+		anno::usage("normal")
+	]], 
+	uniform float detail_bump_factor = float(0.3) [[
+		anno::display_name("Detail Normal Strength"),
+		anno::in_group("Normal"),
+		anno::description("Strength of the detail normal"),
+		anno::soft_range(float(0.0), float(1.0))
+	]],
+	uniform texture_2d detail_normalmap_texture = texture_2d() [[
+		anno::display_name("Detail Normal Map"),
+		anno::in_group("Normal"),
+		anno::usage("normal")
+	]],
+	uniform bool flip_tangent_u = false [[
+        	anno::display_name("Normal Map Flip U Tangent"),
+        	anno::in_group("Normal")
+    ]],
+	uniform bool flip_tangent_v = true [[
+        	anno::display_name("Normal Map Flip V Tangent"),
+        	anno::in_group("Normal")
+    ]],
+
+
+	//  UVW Projection Group  //
+
+	uniform bool project_uvw = false [[
+		anno::display_name("Enable Project UVW Coordinates"),
+		anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+		anno::in_group("UV")
+	]],
+	uniform bool world_or_object = false [[
+		anno::display_name("Enable World Space"),
+		anno::description("When enabled, uses world space for projection, otherwise object space is used"),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform int uv_space_index =  0 [[
+		anno::display_name("UV Space Index"),
+		anno::description("UV Space Index"),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true"),
+		anno::hard_range(int(0), int(3))
+	]],
+	
+	//  UVW Adjustments Group  //
+
+	uniform float2 texture_translate = float2(0.0) [[
+		anno::display_name("Texture Translate"),
+		anno::description("Controls position of texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float texture_rotate = float(0.0) [[
+		anno::display_name("Texture Rotate"),
+		anno::description("Rotates angle of texture in degrees."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float2 texture_scale = float2(1.0) [[
+		anno::display_name("Texture Tiling"),
+		anno::description("Controls repetition of the texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float2 detail_texture_translate = float2(0.0) [[
+		anno::display_name("Detail Texture Translate"),
+		anno::description("Controls the position of the detail texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float detail_texture_rotate = float(0.0) [[
+		anno::display_name("Detail Texture Rotate"),
+		anno::description("Rotates angle of the detail texture in degrees."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]],
+	uniform float2 detail_texture_scale = float2(1.0) [[
+		anno::display_name("Detail Texture Tiling"),
+		anno::description("Controls repetition of the detail texture."),
+		anno::in_group("UV"),
+		anno::enable_if("project_uvw == true")
+	]]
+) 
+[[
+	anno::display_name("OmniPBR ClearCoat "),
+	anno::description("OmniPBR Base with support for clear coat, opacity and ORM textures."),
+	anno::in_group("Base"),
+	anno::version( 2, 1, 1),
+	anno::author("NVIDIA CORPORATION"), 
+	anno::key_words(string[]("omni", "PBR", "opacity", "clearcoat", "omniverse", "generic"))
+]] = let {
+
+	//  UVW lookup and transformation  //
+	base::texture_coordinate_system the_system = world_or_object ? base::texture_coordinate_world : base::texture_coordinate_object;
+	
+	base::texture_coordinate_info uvw = project_uvw ?  base::coordinate_projection(
+								coordinate_system: the_system,
+								    texture_space: uv_space_index,
+								  projection_type: base::projection_cubic 
+							    ) :
+							    base::coordinate_source(
+								coordinate_system: base::texture_coordinate_uvw,
+								    texture_space: uv_space_index 
+							    );							
+	
+	base::texture_coordinate_info transformed_uvw = base::transform_coordinate(
+								  			transform: rotation_translation_scale(
+						                      scaling: float3(texture_scale.x, texture_scale.y, 1.0),
+								   			 rotation: float3(0.0, 0.0, texture_rotate/180.*math::PI ),
+							        	  translation: float3(texture_translate.x, texture_translate.y, 0.0)
+							        ),
+							        coordinate: uvw
+								);
+	
+	base::texture_coordinate_info detail_transformed_uvw = base::transform_coordinate(
+							       		  transform: rotation_translation_scale(
+								  	    	scaling: float3(detail_texture_scale.x, detail_texture_scale.y, 1.0),
+								           rotation: float3(0.0, 0.0, detail_texture_rotate/180.*math::PI ),
+								        translation: float3(detail_texture_translate.x, detail_texture_translate.y, 0.0)
+								        ),
+								        coordinate: uvw
+									);
+
+	base::texture_coordinate_info clearcoat_transformed_uvw =   base::transform_coordinate(
+									  	  transform: rotation_translation_scale(
+								            scaling: float3(clearcoat_texture_scale.x, clearcoat_texture_scale.y, 1.0),
+								           rotation: float3(0.0, 0.0, clearcoat_texture_rotate/180.*math::PI ),
+								        translation: float3(clearcoat_texture_translate.x, clearcoat_texture_translate.y, 0.f)
+									),
+									coordinate: uvw
+									);	
+
+	//  Normal calculations  //
+	OmniPBRBase_1::NormalData defaultData = OmniPBRBase_1::NormalData(state::normal(), float2(0));
+
+	OmniPBRBase_1::NormalData normal_data = tex::texture_isvalid(normalmap_texture) ?
+		OmniPBRBase_1::tangent_space_normal_roughness_texture(
+							texture:        normalmap_texture,
+							factor:         bump_factor,
+							uvw:            transformed_uvw,
+							flip_tangent_u: flip_tangent_u,
+							flip_tangent_v: flip_tangent_v	// true for dx, false for opengl
+							//flip_tangent_v: true
+
+		) : defaultData;
+	float3 the_normal = normal_data.normal;
+
+	OmniPBRBase_1::NormalData detail_normal_data = tex::texture_isvalid(detail_normalmap_texture) ?
+		OmniPBRBase_1::tangent_space_normal_roughness_texture(
+							texture:        detail_normalmap_texture,
+							factor:         detail_bump_factor,
+							uvw:            detail_transformed_uvw,
+							flip_tangent_u: flip_tangent_u,
+							flip_tangent_v: flip_tangent_v	// true for dx, false for opengl
+							) : defaultData;
+	float3 detail_normal = detail_normal_data.normal;
+
+	OmniPBRBase_1::NormalData clearcoat_normal_data = tex::texture_isvalid(clearcoat_normalmap_texture) ?
+		OmniPBRBase_1::tangent_space_normal_roughness_texture(
+								texture:        clearcoat_normalmap_texture,
+								factor:         clearcoat_bump_factor,
+								uvw:            clearcoat_transformed_uvw,
+								flip_tangent_u: flip_tangent_u,
+								flip_tangent_v: flip_tangent_v	// true for dx, false for opengl
+							) : defaultData;
+	float3 clearcoat_normal = clearcoat_normal_data.normal;
+
+
+	float3 diffuse_gloss_normal	        = tex::texture_isvalid(detail_normalmap_texture) ?  add_detail_normal(detail_normal, the_normal) : the_normal;
+	float3 flattened_clearcoat_normal   = ::math::lerp(diffuse_gloss_normal, ::state::normal(), clearcoat_flatten);
+	float3 final_clearcoat_normal       = tex::texture_isvalid(clearcoat_normalmap_texture) ? add_detail_normal(flattened_clearcoat_normal, clearcoat_normal)
+                                                                                            : flattened_clearcoat_normal;
+
+
+	//  ORM Handling  // 
+
+	float3 ORM_lookup = tex::lookup_float3( 
+                              tex: ORM_texture, 
+                            coord: float2(transformed_uvw.position.x, transformed_uvw.position.y)
+                            );
+
+	 
+	float3 roughness_lookup = tex::lookup_float3(
+					  tex: reflectionroughness_texture,
+					coord: float2(transformed_uvw.position.x, transformed_uvw.position.y)		
+					);
+	
+	float roughness_selection    = enable_ORM_texture ? ORM_lookup.y : roughness_lookup.x;
+	float reflection_roughness_s   = math::lerp(reflection_roughness_constant, roughness_selection, reflection_roughness_texture_influence);
+	float2 reflection_roughness = float2(math::sqrt(reflection_roughness_s*reflection_roughness_s + (geometry_normal_roughness_strength * normal_data.roughness.x * normal_data.roughness.x)),
+	                                     math::sqrt(reflection_roughness_s*reflection_roughness_s + (geometry_normal_roughness_strength * normal_data.roughness.y * normal_data.roughness.y)));
+
+	float2 clearcoat_reflection_roughness2 = float2(math::sqrt(clearcoat_reflection_roughness*clearcoat_reflection_roughness + (geometry_normal_roughness_strength * clearcoat_normal_data.roughness.x * clearcoat_normal_data.roughness.x)),
+												    math::sqrt(clearcoat_reflection_roughness*clearcoat_reflection_roughness + (geometry_normal_roughness_strength * clearcoat_normal_data.roughness.y * clearcoat_normal_data.roughness.y)));
+
+	//  Diffuse Color Lookup and AO  //
+	
+	base::texture_return base_lookup = base::file_texture(
+						      	  texture: diffuse_texture,
+					    	 color_offset: color(albedo_add),
+					          color_scale: color(albedo_brightness),
+					          mono_source: base::mono_luminance,
+					                  uvw: transformed_uvw,
+					                 clip: false		
+						);
+	
+	base::texture_return ao_lookup = base::file_texture(
+					 	      	  texture: ao_texture,
+					       	 color_offset: color(0.0, 0.0, 0.0),
+					          color_scale: color(1.0, 1.0, 1.0),
+					          mono_source: base::mono_average,
+					                  uvw: transformed_uvw,
+					       	         clip: false		
+						);
+
+
+	color ao_color          = enable_ORM_texture ? color(ORM_lookup.x) : ao_lookup.tint;
+	color desaturated_base  = math::lerp(base_lookup.tint, color(base_lookup.mono), albedo_desaturation);
+	color diffuse           = tex::texture_isvalid(diffuse_texture)? desaturated_base : diffuse_color_constant;
+	color tinted_diffuse    = multiply_colors(diffuse, diffuse_tint, 1.0).tint;
+	
+	color base_color = multiply_colors(
+			   	color_1: tinted_diffuse,
+				color_2: ao_color,
+				 weight: ao_to_diffuse
+				).tint;
+
+	
+	//  Metalness   //
+
+    	float3 metallic_lookup = tex::lookup_float3(
+				    tex: metallic_texture,
+				  coord: float2(transformed_uvw.position.x, transformed_uvw.position.y)
+				  );
+					
+	float metallic_selection = enable_ORM_texture ? ORM_lookup.z : metallic_lookup.x;
+	float metallic = math::lerp(metallic_constant, metallic_selection, metallic_texture_influence);
+
+
+	//  Emission   //
+
+	color emission_color_texture = tex::texture_isvalid(emissive_color_texture) ?
+                                        base::file_texture(
+												texture: emissive_color_texture,
+                                           color_offset: color(0.0, 0.0, 0.0),
+                                            color_scale: color(1.0, 1.0, 1.0),
+                                            mono_source: base::mono_average,
+						    						uvw: transformed_uvw,
+						   						   clip: false        
+                                            ).tint : emissive_color;
+
+    color emission_mask_texture = tex::texture_isvalid(emissive_mask_texture) ?
+                                        base::file_texture(
+												texture: emissive_mask_texture,
+                                           color_offset: color(0.0, 0.0, 0.0),
+                                            color_scale: color(1.0, 1.0, 1.0),
+                                            mono_source: base::mono_average,
+						    						uvw: transformed_uvw,
+						   						   clip: false        
+                                            ).tint : color(1.0);
+  
+    color final_emission_color = enable_emission ? emission_color_texture * emission_mask_texture: color(0.0);
+
+    //  Opacity   //
+	
+    float opacity_value = enable_opacity_texture ? base::file_texture(
+						    texture: opacity_texture,
+						mono_source: opacity_mode,
+								uvw: transformed_uvw
+						).mono : opacity_constant;
+
+    float cutout_opacity = enable_opacity ? ((opacity_threshold == 0.0) ? opacity_value : ((opacity_value >= opacity_threshold) ? 1.0 : 0)) : 1.0;
+
+material base = OmniPBRBase_1::OmniPBRBase(
+    diffuse_reflection_color: base_color, 
+    specular_reflection_aniso_roughness: reflection_roughness, 
+    specular_level: specular_level,
+    metalness: metallic,
+    enable_emission: enable_emission,
+    emission_color: final_emission_color,
+    emission_intensity: emissive_intensity,
+    enable_coat: enable_clearcoat,
+    coat_weight: clearcoat_weight,
+    coat_color: clearcoat_tint,
+    coat_transparency: clearcoat_transparency,
+    coat_aniso_roughness: clearcoat_reflection_roughness2,
+    coat_ior: clearcoat_ior,
+    enable_opacity: enable_opacity,
+    geometry_opacity: cutout_opacity,
+    clearcoat_geometry_normal: final_clearcoat_normal,
+    geometry_normal: diffuse_gloss_normal
+    );
+
+} in material(
+surface:  base.surface,
+geometry: base.geometry
+);

saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/SubUSDs/materials/OmniPBR_ClearCoat_Opacity.mdl

@@ -0,0 +1,884 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+
+mdl 1.7;
+import ::df::*;
+import ::state::*;
+import ::math::*;
+import ::base::*;
+import ::tex::*;
+import ::anno::*;
+
+import ::nvidia::core_definitions::file_texture;
+import ::nvidia::core_definitions::normalmap_texture;
+
+import OmniPBRBase_1::*;
+
+
+uniform float4x4 rotation_translation_scale(
+    uniform float3 rotation = float3(0.)
+        [[ anno::description("Rotation applied to every UVW coordinate") ]],
+    uniform float3 translation = float3(0.)
+        [[ anno::description("Offset applied to every UVW coordinate") ]],
+    uniform float3 scaling = float3(1.)
+        [[ anno::description("Scale applied to every UVW coordinate") ]]
+)
+[[
+    anno::description("Construct transformation matrix from Euler rotation, translation and scale"),
+    anno::hidden()
+]]
+{
+    float4x4 scale =
+        float4x4(scaling.x        , 0.               , 0.               , 0.,
+                 0.               , scaling.y        , 0.               , 0.,
+                 0.               , 0.               , scaling.z        , 0.,
+                 translation.x, translation.y, translation.z, 1.);
+
+    float3 s = math::sin(rotation);
+    float3 c = math::cos(rotation);
+    float4x4 rotate =
+        float4x4(  c.y*c.z ,  -c.x*s.z + s.x*s.y*c.z ,  s.x*s.z + c.x*s.y*c.z , 0.0,
+                   c.y*s.z ,   c.x*c.z + s.x*s.y*s.z , -s.x*c.z + c.x*s.y*s.z , 0.0,
+                  -s.y     ,   s.x*c.y               ,  c.x*c.y               , 0.0,
+                   0.     ,   0                   ,  0                   , 1.);
+
+    return   scale*rotate;
+}
+
+// Returns the normal n in tangent space, given n is in internal space.
+float3 transform_internal_to_tangent(float3 n)
+{
+	/* flip_tangent_v */
+    return
+        n.x* float3(state::texture_tangent_u(0).x,-state::texture_tangent_v(0).x,state::normal().x)+
+        n.y* float3(state::texture_tangent_u(0).y,-state::texture_tangent_v(0).y,state::normal().y)+
+        n.z* float3(state::texture_tangent_u(0).z,-state::texture_tangent_v(0).z,state::normal().z);
+}
+
+// Returns the normal n in internal space, given n is in tangent space.
+float3 transform_tangent_to_internal(float3 n)
+{
+    return  state::texture_tangent_u(0) * n.x -
+            state::texture_tangent_v(0) * n.y + /* flip_tangent_v */
+            state::normal() * n.z ;
+}
+
+// Returns a normal by adding a detail normal to a global normal.
+export float3 add_detail_normal(float3 nd = state::normal(), float3 n = state::normal())
+{
+    // http://blog.selfshadow.com/publications/blending-in-detail/
+    float3 n_t = transform_internal_to_tangent(n);
+    float3 nd_t = transform_internal_to_tangent(nd);
+
+    n_t=n_t + float3(0.,0.,1.);
+    nd_t = nd_t *  float3(-1.,-1.,1.);
+
+    n = n_t*math::dot(n_t, nd_t)/n_t.z - nd_t;
+    return math::normalize(transform_tangent_to_internal(n));
+}
+
+
+base::texture_return multiply_colors(
+    color color_1 = color(1.0, 1.0, 1.0),
+    color color_2 = color(.5, .5, .5),
+	float weight  = 1.0
+) [[ 
+    anno::hidden() 
+]]
+{
+    return base::blend_color_layers(
+                layers: base::color_layer[](
+                    base::color_layer(
+                        layer_color:    color_2,
+                        weight:         weight,
+                        mode:           base::color_layer_multiply
+                        )),
+                base: color_1
+    );
+}
+
+
+base::texture_return add_colors(
+    color color_1 = color(.5, .5, .5),
+    color color_2 = color(.5, .5, .5),
+	float weight  = 1.0
+) [[ 
+    anno::hidden(), 
+	anno::unused()
+]]
+{
+    return base::blend_color_layers(
+                layers: base::color_layer[](
+                    base::color_layer(
+                        layer_color:    color_2,
+                        weight:         weight,
+                        mode:           base::color_layer_add
+                        )),
+                base: color_1
+    );
+}
+
+base::texture_return blend_colors(
+    color color_1 = color(1.0, 1.0, 1.0),
+    color color_2 = color(.5, .5, .5),
+	float weight  = 1.0
+) [[ 
+    anno::hidden(),
+	anno::unused()
+]]
+{
+    return base::blend_color_layers(
+                layers: base::color_layer[](
+                    base::color_layer(
+                        layer_color:    color_2,
+                        weight:         weight,
+                        mode:           base::color_layer_blend
+                        )),
+                base: color_1
+    );
+}
+
+
+export material OmniPBR_ClearCoat_Opacity(
+
+	color diffuse_color_constant = color(0.2f)
+	[[
+		anno::display_name("Base Color"),
+		anno::description("This is the base color"),
+		anno::in_group("Albedo")
+	]],
+	uniform texture_2d diffuse_texture = texture_2d()
+	[[
+		anno::display_name("Albedo Map"),
+		anno::in_group("Albedo")
+	]],
+	float albedo_desaturation = float(0.0)
+	[[
+		anno::display_name("Albedo Desaturation"),
+		anno::soft_range(float(0.0f), float(1.0f)),
+		anno::description("Desaturates the diffuse color"),
+		anno::in_group("Albedo")
+	]],
+	float albedo_add = float(0.0)
+	[[
+		anno::display_name("Albedo Add"),
+		anno::soft_range(float(-1.0f), float(1.0f)),
+		anno::description("Adds a constant value to the diffuse color "),
+		anno::in_group("Albedo")
+	]],	
+	float albedo_brightness = float(1.0)
+	[[
+		anno::display_name("Albedo Brightness"),
+		anno::soft_range(float(0.0f), float(1.0f)),
+		anno::description("Multiplier for the diffuse color "),
+		anno::in_group("Albedo")
+	]],	
+	color diffuse_tint = color(1.0f)
+	[[
+		anno::display_name("Color Tint"),
+		anno::description("When enabled, this color value is multiplied over the final albedo color"),
+		anno::in_group("Albedo")
+	]],
+	
+
+	// -------------------- REFLECTIVITY ----------------------
+	
+	
+	
+	float reflection_roughness_constant = 0.5f
+	[[
+		anno::display_name("Roughness Amount"),
+		anno::hard_range(0.0,1.),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity")
+	]],
+	float reflection_roughness_texture_influence = 0.0f
+	[[
+		anno::display_name("Roughness Map Influence"),
+		anno::hard_range(0.0, 1.),
+		anno::description("Blends between the constant value and the lookup of the roughness texture"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d reflectionroughness_texture = texture_2d()
+	[[
+		anno::display_name("Roughness Map"),
+		anno::in_group("Reflectivity")
+	]],
+	
+	
+	float metallic_constant = 0.f
+	[[
+		anno::display_name("Metallic Amount"),
+		anno::hard_range(0.0,1.),
+		anno::description("Metallic Material"),
+		anno::in_group("Reflectivity")
+	]],	
+	float metallic_texture_influence = 0.0f
+	[[
+		anno::display_name("Metallic Map Influence"),
+		anno::hard_range(0.0, 1.),
+		anno::description("Blends between the constant value and the lookup of the metallic texture"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d metallic_texture = texture_2d()
+	[[
+		anno::display_name("Metallic Map"),
+		anno::in_group("Reflectivity")
+	]], 
+	float specular_level = float(0.5)
+	[[
+		anno::display_name("Specular"),
+		anno::soft_range(float(0.0f), float(1.0f)),
+		anno::description("The specular level (intensity) of the material"),
+		anno::in_group("Reflectivity")
+	]],
+	// -------------------- ORM ----------------------
+	uniform bool enable_ORM_texture = false
+	[[
+		anno::display_name("Enable ORM Texture"),
+		anno::description("When True the ORM texture will be used to extract the Occlusion, Roughness and Metallic Map"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d ORM_texture = texture_2d()
+	[[
+		anno::display_name("ORM Map"),
+		anno::description("Texture that hae Occlusion, Roughness and Metallic map stored in the respective r, g and b channels"),
+		anno::in_group("Reflectivity")
+	]],
+	
+	// -------------------- AO Group ----------------------
+
+	float ao_to_diffuse = 0.0
+	[[
+		anno::display_name("AO to Diffuse"),
+		anno::description("Controls the amount of ambient occlusion multiplied into the diffuse color channel"),
+		anno::in_group("AO"),
+		anno::hard_range(0.0f, 1.0f)
+	]],
+	uniform texture_2d ao_texture         = texture_2d()
+	[[
+		anno::display_name("Ambient Occlusion Map"),
+		anno::description("The Ambient Occlusion texture for the material"),
+		anno::in_group("AO")
+	]],
+	
+	
+	// -------------------- EMISSIVE ----------------------
+	
+	
+	uniform bool enable_emission = false
+	[[
+        anno::display_name("Enable Emission"),
+		anno::description("Enables the emission of light from the material"),
+		anno::in_group("Emissive")
+	]],
+	
+	color emissive_color    = color(1.0, 0.1, 0.1)
+	[[
+		anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Color"),
+		anno::description("The emission color"),
+		anno::in_group("Emissive")
+	
+	]],
+
+    uniform texture_2d emissive_color_texture = texture_2d() 
+	[[ 
+        anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Color map"),
+        anno::in_group("Emissive"),
+		anno::description("The emissive color texture")
+    ]],
+
+	uniform texture_2d emissive_mask_texture    = texture_2d()
+	[[
+		anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Mask map"),
+		anno::description("The texture masking the emissive color"),
+		anno::in_group("Emissive")
+	]],
+	uniform float emissive_intensity = 40.f
+	[[
+		anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Intensity"),    
+		anno::description("Intensity of the emission"),
+		anno::in_group("Emissive")
+	]],
+
+	// Cutout Opacity
+	uniform bool enable_opacity = true
+	[[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+	uniform bool enable_opacity_texture = false
+	[[
+		anno::display_name("Enable Opacity Texture"),
+		anno::description("Enables or disables the usage of the opacity texture map"),
+		anno::in_group("Opacity")
+	]],
+	uniform float opacity_constant = 1.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Amount"),    
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity")
+	]],
+	uniform texture_2d opacity_texture = texture_2d()
+	[[
+		anno::display_name("Opacity Map"),
+		anno::in_group("Opacity")
+	]],
+	uniform base::mono_mode opacity_mode = base::mono_average
+	[[
+		anno::display_name("Opacity Mono Source"),
+		anno::in_group("Opacity"),
+		anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum")
+	]],
+	uniform float opacity_threshold = 0.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Threshold"),
+		anno::description("If 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity")
+	]],
+	
+	// -------------------- Clearcoat ----------------------
+	uniform bool enable_clearcoat = false
+	[[
+		anno::display_name("Enable Clearcoat Layer"),
+		anno::description("Adds a  clearcoat layer on top of the material when enabled"),
+		anno::in_group("Clearcoat")
+	]],
+	color clearcoat_tint = color(1.0f)
+	[[
+		anno::display_name("Clearcoat Tint"),
+		anno::description("Clearcoat is tinted and affects the underlying material"),
+		anno::in_group("Clearcoat")
+	]],
+	float clearcoat_transparency = 1.0f
+	[[
+		anno::display_name("Clearcoat Transparency"),
+		anno::description("Adjusts the transparency of the clearcoat. Can be turned into a fully opaque clearcoat "
+		"covering the underlying layer"),
+		anno::in_group("Clearcoat"),
+		anno::hard_range(0.0f, 1.0f)
+	]],
+	float clearcoat_reflection_roughness = 0.0f
+	[[
+		anno::display_name("Clearcoat Roughness"),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::hard_range(0.0f, 1.0f),
+		anno::in_group("Clearcoat")
+	]],
+	float clearcoat_weight = 1.0f
+	[[
+		anno::display_name("Clearcoat Weight"),
+		anno::description("Sets the weight for clearcoat layer"),
+		anno::hard_range(0.0f, 1.0f),
+		anno::in_group("Clearcoat")
+	]],
+	float clearcoat_flatten = 1.0f
+	[[
+		anno::display_name("Clearcoat Flatten"),
+		anno::description("Flattens the clearcoat to even out the underlying bump maps"),
+		anno::hard_range(0.0f, 1.0f),
+		anno::in_group("Clearcoat")
+	]],
+	float clearcoat_ior = 1.56f
+	[[
+		anno::display_name("Clearcoat IOR"),
+		anno::description("Sets the Index of refraction for the clearcoat layer"),
+		anno::soft_range(1.0f, 4.0f),
+		anno::in_group("Clearcoat")
+	]],
+		uniform float clearcoat_bump_factor = 1.f
+	[[
+		anno::display_name("Clearcoat Normal Map Strength"),
+		anno::description("Strength of normal map."),
+		anno::in_group("Clearcoat"),
+		anno::soft_range(0.0f, 1.0f)
+	]],
+	uniform texture_2d clearcoat_normalmap_texture = texture_2d()
+	[[
+		anno::display_name("Clearcoat Normal Map"),
+		anno::description("Enables the usage of the normalmap texture"),
+		anno::in_group("Clearcoat")
+	]], 
+	
+	// -------------------- Normal ----------------------
+	
+	
+	
+	uniform float geometry_normal_roughness_strength = 1.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Normal map to roughness weight"),
+		anno::description("Enables and weights roughness induced by normal maps"),
+		anno::in_group("Normal")
+	]],
+	/*
+	uniform bool enable_normalmap_texture = false
+	[[
+		anno::display_name("Enable Normal Texture"),
+		anno::description("Enables the usage of the normalmap texture"),
+		anno::in_group("Features")
+	]],
+	*/
+		uniform float bump_factor = 1.f
+	[[
+		anno::display_name("Normal Map Strength"),
+		anno::description("Strength of normal map."),
+		anno::in_group("Normal"),
+		anno::soft_range(0.0f, 1.0f)
+	]],
+	
+	uniform texture_2d normalmap_texture = texture_2d()
+	[[
+		anno::display_name("Normal Map"),
+		anno::description("Enables the usage of the normalmap texture"),
+		anno::in_group("Normal")
+	]], 
+	
+
+	
+/*	uniform bool enable_detail_normalmap_texture = false
+	[[
+		anno::display_name("Enable Detail Normal Texture"),
+		anno::in_group("Features"),
+		anno::description("Enables the usage of the detail normalmap texture")
+	]],
+*/
+	uniform float detail_bump_factor = .3f
+	[[
+		anno::display_name("Detail Normal Strength"),
+		anno::in_group("Normal"),
+		anno::soft_range(0.0f, 1.0f),
+		anno::description("Strength of the detail normal")
+	]],
+	uniform texture_2d detail_normalmap_texture = texture_2d()
+	[[
+		anno::display_name("Detail Normal Map"),
+		anno::in_group("Normal")
+	]],
+	uniform bool flip_tangent_u = false  [[
+        anno::display_name("Normal Map Flip U Tangent"),
+        anno::in_group("Normal")
+    ]],
+	uniform bool flip_tangent_v = true [[
+        anno::display_name("Normal Map Flip V Tangent"),
+        anno::in_group("Normal")
+    ]],
+
+	// UV Projection Group
+	uniform bool project_uvw = false
+	[[
+		anno::display_name("Enable Project UVW Coordinates"),
+		anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+		anno::in_group("UV")
+	]],
+	uniform bool world_or_object = false
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Enable World Space"),
+		anno::description("When set to 'true' uses world space for projection, when 'false' object space is used"),
+		anno::in_group("UV")
+	]],
+	
+	uniform int uv_space_index =  0
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("UV Space Index"),
+		anno::description("UV Space Index."),
+		anno::in_group("UV"),
+		anno::hard_range(0, 3)
+	]],
+	
+	// Adjustments Group
+	uniform float2 texture_translate =  float2(0.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Texture Translate"),
+		anno::description("Controls position of texture."),
+		anno::in_group("UV")
+	]],
+	uniform float texture_rotate =  0.f
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Texture Rotate"),
+		anno::description("Rotates angle of texture in degrees."),
+		anno::in_group("UV")
+	]],
+	uniform float2 texture_scale =  float2(1.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Texture Scale"),
+		anno::description("Larger number increases size of texture."),
+		anno::in_group("UV")
+	]],
+	
+	uniform float2 detail_texture_translate =  float2(0.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Detail Texture Translate"),
+		anno::description("Controls the position of the detail texture."),
+		anno::in_group("UV")
+	]],
+	uniform float detail_texture_rotate =  0.f
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Detail Texture Rotate"),
+		anno::description("Rotates angle of the detail texture in degrees."),
+		anno::in_group("UV")
+	]],
+	uniform float2 detail_texture_scale =  float2(1.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Detail Texture Scale"),
+		anno::description("Larger numbers increase the size of the detail texture"),
+		anno::in_group("UV")
+	]],
+	
+	uniform float2 clearcoat_texture_translate =  float2(0.0f)
+	[[
+		anno::display_name("Clearcoat Texture Translate"),
+		anno::description("Controls the position of the detail texture."),
+		anno::in_group("UV")
+	]],
+	uniform float clearcoat_texture_rotate =  0.f
+	[[
+		anno::display_name("Clearcoat Texture Rotate"),
+		anno::description("Rotates angle of the detail texture in degrees."),
+		anno::in_group("UV")
+	]],
+	uniform float2 clearcoat_texture_scale =  float2(1.0f)
+	[[
+		anno::display_name("Clearcoat Texture Scale"),
+		anno::description("Larger numbers increase the size of the detail texture"),
+		anno::in_group("UV")
+	]]
+	
+) 
+[[
+	anno::display_name("OmniPBR ClearCoat Opacity"),
+	anno::description("OmniPBR with ClearCoat. Supports opacity and ORM textures."),
+ 	anno::in_group("Base"),
+	anno::version( 2, 1, 0),
+	anno::author("NVIDIA CORPORATION"), 
+	anno::key_words(string[]("omni", "PBR", "opacity", "omniverse", "generic"))
+]]
+ = let{
+
+	// UVW lookup and transformation
+	base::texture_coordinate_system the_system = world_or_object ? base::texture_coordinate_world : base::texture_coordinate_object;
+	
+	
+	base::texture_coordinate_info uvw = project_uvw ? 
+											base::coordinate_projection(
+												coordinate_system: the_system,
+												texture_space: uv_space_index,
+												projection_type: base::projection_cubic ) :
+											base::coordinate_source(
+												coordinate_system: base::texture_coordinate_uvw,
+												texture_space: uv_space_index
+	);							
+											
+	
+	base::texture_coordinate_info  transformed_uvw =  base::transform_coordinate(
+								transform: rotation_translation_scale(
+									scaling: float3(texture_scale.x, texture_scale.y, 1.0),
+									rotation: float3(0.0, 0.0, texture_rotate/180.*math::PI ),
+									translation: float3(texture_translate.x, texture_translate.y, 0.0)
+								),
+								coordinate: uvw
+	);
+	
+	
+	base::texture_coordinate_info  detail_transformed_uvw =  base::transform_coordinate(
+								transform: rotation_translation_scale(
+									scaling: float3(detail_texture_scale.x, detail_texture_scale.y, 1.0),
+									rotation: float3(0.0, 0.0, detail_texture_rotate/180.*math::PI ),
+									translation: float3(detail_texture_translate.x, detail_texture_translate.y, 0.0)
+								),
+								coordinate: uvw
+	);
+	
+	base::texture_coordinate_info  clearcoat_transformed_uvw = base::transform_coordinate(
+							transform: rotation_translation_scale(
+								scaling: float3(clearcoat_texture_scale.x, clearcoat_texture_scale.y, 1.0),
+								rotation: float3(0.0, 0.0, clearcoat_texture_rotate/180.*math::PI ),
+								translation: float3(clearcoat_texture_translate.x, clearcoat_texture_translate.y, 0.f)
+							),
+							coordinate: uvw
+	);
+	
+	// Normal calculations
+	OmniPBRBase_1::NormalData defaultData = OmniPBRBase_1::NormalData(state::normal(), float2(0));
+
+	OmniPBRBase_1::NormalData normal_data = tex::texture_isvalid(normalmap_texture) ?
+		OmniPBRBase_1::tangent_space_normal_roughness_texture(
+							texture:        normalmap_texture,
+							factor:         bump_factor,
+							uvw:            transformed_uvw,
+							flip_tangent_u: flip_tangent_u,
+							flip_tangent_v: flip_tangent_v	// true for dx, false for opengl
+							//flip_tangent_v: true
+
+		) : defaultData;
+	float3 the_normal = normal_data.normal;
+
+	OmniPBRBase_1::NormalData detail_normal_data = tex::texture_isvalid(detail_normalmap_texture) ?
+		OmniPBRBase_1::tangent_space_normal_roughness_texture(
+							texture:        detail_normalmap_texture,
+							factor:         detail_bump_factor,
+							uvw:            detail_transformed_uvw,
+							flip_tangent_u: flip_tangent_u,
+							flip_tangent_v: flip_tangent_v	// true for dx, false for opengl
+							) : defaultData;
+	float3 detail_normal = detail_normal_data.normal;
+
+	OmniPBRBase_1::NormalData clearcoat_normal_data = tex::texture_isvalid(clearcoat_normalmap_texture) ?
+		OmniPBRBase_1::tangent_space_normal_roughness_texture(
+								texture:        clearcoat_normalmap_texture,
+								factor:         clearcoat_bump_factor,
+								uvw:            clearcoat_transformed_uvw,
+								flip_tangent_u: flip_tangent_u,
+								flip_tangent_v: flip_tangent_v	// true for dx, false for opengl
+							) : defaultData;
+	float3 clearcoat_normal = clearcoat_normal_data.normal;
+
+	float3 diffuse_gloss_normal = tex::texture_isvalid(detail_normalmap_texture) ?	add_detail_normal(detail_normal, the_normal) : the_normal;
+	
+	float3 flattened_clearcoat_normal = ::math::lerp(diffuse_gloss_normal, ::state::normal(), clearcoat_flatten);
+	
+	float3 final_clearcoat_normal = tex::texture_isvalid(clearcoat_normalmap_texture) ?	add_detail_normal(flattened_clearcoat_normal, clearcoat_normal) : flattened_clearcoat_normal;
+
+	
+	// -------------------- ORM Handling -------------------- 
+	float3 ORM_lookup = tex::lookup_float3(
+						tex: ORM_texture,
+						coord: float2(transformed_uvw.position.x, transformed_uvw.position.y)
+	);
+	 
+	float3 roughness_lookup = tex::lookup_float3(
+							tex: reflectionroughness_texture,
+							coord: float2(transformed_uvw.position.x, transformed_uvw.position.y)		
+	);
+	
+	float roughness_selection = enable_ORM_texture ? ORM_lookup.y : roughness_lookup.x;
+	 
+	float reflection_roughness_1 =  math::lerp(reflection_roughness_constant, roughness_selection, reflection_roughness_texture_influence);
+ 
+	
+	// Diffuse Color Lookup and AO
+	
+	base::texture_return base_lookup = base::file_texture(
+							texture: diffuse_texture,
+							color_offset: color(albedo_add),
+							color_scale: color(albedo_brightness),
+							mono_source: base::mono_luminance,
+							uvw: transformed_uvw,
+							clip: false		
+	);
+	
+	base::texture_return ao_lookup = base::file_texture(
+							texture: ao_texture,
+							color_offset: color(0.0, 0.0, 0.0),
+							color_scale: color(1.0, 1.0, 1.0),
+							mono_source: base::mono_average,
+							uvw: transformed_uvw,
+							clip: false		
+	);
+	
+	// checking whether the ORM texture or the AO texture is supposed to be used
+	color ao_color = enable_ORM_texture ? color(ORM_lookup.x) : ao_lookup.tint;
+	
+	color desaturated_base = math::lerp(base_lookup.tint, color(base_lookup.mono), albedo_desaturation);
+	
+	color diffuse_color =  tex::texture_isvalid(diffuse_texture)? desaturated_base : diffuse_color_constant;
+	
+	//color diffuse_color = desaturated_base ;
+	
+	color tinted_diffuse_color = multiply_colors(diffuse_color, diffuse_tint, 1.0).tint ;
+	
+	color base_color = multiply_colors(
+								color_1: tinted_diffuse_color,
+								color_2: ao_color,
+								weight:  ao_to_diffuse
+	).tint;
+	
+	float3 metallic_lookup = tex::lookup_float3(
+						tex: metallic_texture,
+						coord: float2(transformed_uvw.position.x, transformed_uvw.position.y)
+	);
+					
+	// Choose between ORM or metallic map
+	float metallic_selection = enable_ORM_texture ? ORM_lookup.z : metallic_lookup.x;
+	
+	// blend between the constant metallic value and the map lookup
+	float metallic =  math::lerp(metallic_constant, metallic_selection, metallic_texture_influence);
+	
+	
+	bsdf diffuse_bsdf = df::weighted_layer(
+		weight: 1.0,
+		layer: df::diffuse_reflection_bsdf(
+			tint: base_color,
+			roughness: 0.f ),
+		base: bsdf(),
+		normal: enable_clearcoat ? diffuse_gloss_normal : state::normal()
+	);
+
+	// The glossy reflection BSDF
+	// TODO: Clearcoat's induced roughness from normal map should also apply here, but right now avoiding it due to confusing relationship in the normals
+	bsdf ggx_smith_bsdf = df::microfacet_ggx_smith_bsdf(
+		roughness_u:reflection_roughness_1 * reflection_roughness_1 + (geometry_normal_roughness_strength * normal_data.roughness.x * normal_data.roughness.x),
+		roughness_v:reflection_roughness_1 * reflection_roughness_1 + (geometry_normal_roughness_strength * normal_data.roughness.y * normal_data.roughness.y),
+		tint: color(1.0, 1.0, 1.0),
+		mode: df::scatter_reflect
+	);
+	
+	
+	bsdf custom_curve_layer_bsdf = df::custom_curve_layer(
+		normal_reflectivity:  0.08,		
+		grazing_reflectivity: 1.0,
+		exponent:	          5.0,
+		weight:	              specular_level,
+		layer:                ggx_smith_bsdf,
+		base:	              diffuse_bsdf,
+		normal:               enable_clearcoat ? diffuse_gloss_normal : state::normal()
+	);
+	
+	// Replaced by tinting as this reproduces the UE4 behavior more faithfully
+	 // bsdf directional_factor_bsdf = df::directional_factor(
+		 // normal_tint:  base_color,
+		 // grazing_tint: base_color,     //color(1.0, 1.0, 1.0),
+		 // exponent: 3.0f,
+		 // base: ggx_smith_bsdf
+	 // );
+	
+	bsdf directional_factor_bsdf = df::tint(base_color, ggx_smith_bsdf);
+	
+	
+	// CLEARCOAT 
+
+	
+	bsdf omni_PBR_bsdf = df::weighted_layer(
+        weight: metallic,
+        layer:	directional_factor_bsdf,
+		base:	custom_curve_layer_bsdf,
+		normal: enable_clearcoat ? diffuse_gloss_normal : state::normal()
+	);
+	
+	bsdf clearcoat_bsdf = df::microfacet_ggx_smith_bsdf(
+		roughness_u: clearcoat_reflection_roughness * clearcoat_reflection_roughness + (geometry_normal_roughness_strength * clearcoat_normal_data.roughness.x * clearcoat_normal_data.roughness.x),
+		roughness_v: clearcoat_reflection_roughness * clearcoat_reflection_roughness + (geometry_normal_roughness_strength * clearcoat_normal_data.roughness.y * clearcoat_normal_data.roughness.y),
+		tint:        color(1.0f),
+		mode:        df::scatter_reflect
+	);
+	
+	// bsdf omni_PBR_coated_bsdf = df::custom_curve_layer(
+		// normal_reflectivity:  clearcoat_reflectivity * 0.08,
+		// grazing_reflectivity: 1.0,
+		// weight:               clearcoat_weight,
+		// layer:                clearcoat_bsdf,
+		// base:                 omni_PBR_bsdf,
+		// normal:               final_clearcoat_normal
+	// );
+	
+	bsdf opaque_clearcoat = df::weighted_layer(
+        weight: clearcoat_transparency,
+		layer:	::df::tint( 
+					tint: clearcoat_tint,
+					base: omni_PBR_bsdf),
+		base:	::df::diffuse_reflection_bsdf(
+					tint: clearcoat_tint)
+	);
+	
+	bsdf omni_PBR_coated_bsdf = df::fresnel_layer(
+		ior:     clearcoat_ior,
+		weight:  clearcoat_weight,
+		layer:   clearcoat_bsdf,
+		base:    opaque_clearcoat,
+		normal:  final_clearcoat_normal
+	);
+	
+	
+	bsdf final_bsdf = enable_clearcoat ? omni_PBR_coated_bsdf : omni_PBR_bsdf;
+
+	// Emission
+	color emissive_color_tx = tex::texture_isvalid(emissive_color_texture) ?
+                        base::file_texture(
+                            texture: emissive_color_texture,
+                            color_offset: color(0.0, 0.0, 0.0),
+                            color_scale: color(1.0, 1.0, 1.0),
+                            mono_source: base::mono_average,
+                            uvw: transformed_uvw,
+                            clip: false        
+    ).tint : emissive_color;
+
+    color emissive_mask = tex::texture_isvalid(emissive_mask_texture) ?
+                        base::file_texture(
+                            texture: emissive_mask_texture,
+                            color_offset: color(0.0, 0.0, 0.0),
+                            color_scale: color(1.0, 1.0, 1.0),
+                            mono_source: base::mono_average,
+                            uvw: transformed_uvw,
+                            clip: false        
+    ).tint : color(1.0);
+	
+	float opacity_value = enable_opacity_texture ? base::file_texture(
+                                                texture: 	 opacity_texture,
+												mono_source: opacity_mode,
+                                                uvw: 		 transformed_uvw
+							).mono : opacity_constant;
+
+	// The opacity_threshold is interpreted as follows:
+	// 1. opacity_threshold > 0: binary opacity masking mode
+	//   i.e.: if opacity_value > opacity_threshold we remap opacity_value to 1.0, otherwise to 0.0
+	// 2. opacity_threshold == 0: fractional opacity mode. Leaves the opacity_value untouched,
+	//   allowing the renderer to use fractional cutout_opacity values, if it supports this feature
+	//
+	// NOTE: when the renderer does not enable 'fractional cutout opacity' it interprets
+	// cutout_opacity values of 1.0 as opaque and anything below as fully transparent
+    float local_cutout_opacity = enable_opacity ? ((opacity_threshold == 0.0) ? opacity_value : ((opacity_value >= opacity_threshold) ? 1.0 : 0)) : 1.0;
+
+} in material(
+	surface: material_surface(
+		scattering: final_bsdf,
+		emission:  material_emission (
+            df::diffuse_edf(),
+            intensity: enable_emission? emissive_color_tx * emissive_mask * color(emissive_intensity) : color(0)
+		)
+	),
+	geometry: material_geometry(
+		normal: enable_clearcoat ? state::normal() : diffuse_gloss_normal,
+		cutout_opacity: local_cutout_opacity
+	)
+);

saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/SubUSDs/materials/OmniPBR_Opacity.mdl

@@ -0,0 +1,426 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+mdl 1.4;
+
+import ::base::*;
+import ::anno::*;
+
+using OmniPBR_ClearCoat_Opacity import OmniPBR_ClearCoat_Opacity;
+
+
+
+export material OmniPBR_Opacity(
+
+	color diffuse_color_constant = color(0.2f)
+	[[
+		anno::display_name("Base Color"),
+		anno::description("This is the base color"),
+		anno::in_group("Albedo")
+	]],
+	uniform texture_2d diffuse_texture = texture_2d()
+	[[
+		anno::display_name("Albedo Map"),
+		anno::in_group("Albedo")
+	]],
+	float albedo_desaturation = float(0.0)
+	[[
+		anno::display_name("Albedo Desaturation"),
+		anno::soft_range(float(0.0f), float(1.0f)),
+		anno::description("Desaturates the diffuse color"),
+		anno::in_group("Albedo")
+	]],
+	float albedo_add = float(0.0)
+	[[
+		anno::display_name("Albedo Add"),
+		anno::soft_range(float(-1.0f), float(1.0f)),
+		anno::description("Adds a constant value to the diffuse color "),
+		anno::in_group("Albedo")
+	]],	
+	float albedo_brightness = float(1.0)
+	[[
+		anno::display_name("Albedo Brightness"),
+		anno::soft_range(float(0.0f), float(1.0f)),
+		anno::description("Multiplier for the diffuse color "),
+		anno::in_group("Albedo")
+	]],	
+	color diffuse_tint = color(1.0f)
+	[[
+		anno::display_name("Color Tint"),
+		anno::description("When enabled, this color value is multiplied over the final albedo color"),
+		anno::in_group("Albedo")
+	]],
+	
+
+	// -------------------- REFLECTIVITY ----------------------
+	
+	
+	
+	float reflection_roughness_constant = 0.5f
+	[[
+		anno::display_name("Roughness Amount"),
+		anno::hard_range(0.0,1.),
+		anno::description("Higher roughness values lead to more blurry reflections"),
+		anno::in_group("Reflectivity")
+	]],
+	float reflection_roughness_texture_influence = 0.0f
+	[[
+		anno::display_name("Roughness Map Influence"),
+		anno::hard_range(0.0, 1.),
+		anno::description("Blends between the constant value and the lookup of the roughness texture"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d reflectionroughness_texture = texture_2d()
+	[[
+		anno::display_name("Roughness Map"),
+		anno::in_group("Reflectivity")
+	]],
+	
+	
+	float metallic_constant = 0.f
+	[[
+		anno::display_name("Metallic Amount"),
+		anno::hard_range(0.0,1.),
+		anno::description("Metallic Material"),
+		anno::in_group("Reflectivity")
+	]],	
+	float metallic_texture_influence = 0.0f
+	[[
+		anno::display_name("Metallic Map Influence"),
+		anno::hard_range(0.0, 1.),
+		anno::description("Blends between the constant value and the lookup of the metallic texture"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d metallic_texture = texture_2d()
+	[[
+		anno::display_name("Metallic Map"),
+		anno::in_group("Reflectivity")
+	]], 
+	float specular_level = float(0.5)
+	[[
+		anno::display_name("Specular"),
+		anno::soft_range(float(0.0f), float(1.0f)),
+		anno::description("The specular level (intensity) of the material"),
+		anno::in_group("Reflectivity")
+	]],
+	// -------------------- ORM ----------------------
+	uniform bool enable_ORM_texture = false
+	[[
+		anno::display_name("Enable ORM Texture"),
+		anno::description("When True the ORM texture will be used to extract the Occlusion, Roughness and Metallic Map"),
+		anno::in_group("Reflectivity")
+	]],
+	uniform texture_2d ORM_texture = texture_2d()
+	[[
+		anno::display_name("ORM Map"),
+		anno::description("Texture that hae Occlusion, Roughness and Metallic map stored in the respective r, g and b channels"),
+		anno::in_group("Reflectivity")
+	]],
+	
+	// -------------------- AO Group ----------------------
+
+	float ao_to_diffuse = 0.0
+	[[
+		anno::display_name("AO to Diffuse"),
+		anno::description("Controls the amount of ambient occlusion multiplied into the diffuse color channel"),
+		anno::in_group("AO"),
+		anno::hard_range(0.0f, 1.0f)
+	]],
+	uniform texture_2d ao_texture         = texture_2d()
+	[[
+		anno::display_name("Ambient Occlusion Map"),
+		anno::description("The Ambient Occlusion texture for the material"),
+		anno::in_group("AO")
+	]],
+	
+	
+	// -------------------- EMISSIVE ----------------------
+	
+	
+	uniform bool enable_emission = false
+	[[
+        anno::display_name("Enable Emission"),
+		anno::description("Enables the emission of light from the material"),
+		anno::in_group("Emissive")
+	]],
+	
+	color emissive_color    = color(1.0, 0.1, 0.1)
+	[[
+		anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Color"),
+		anno::description("The emission color"),
+		anno::in_group("Emissive")
+	
+	]],
+    uniform texture_2d emissive_color_texture = texture_2d() 
+	[[ 
+        anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Color map"),
+        anno::in_group("Emissive"),
+		anno::description("The emissive color texture")
+    ]],
+	uniform texture_2d emissive_mask_texture    = texture_2d()
+	[[
+		anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Mask map"),
+		anno::description("The texture masking the emissive color"),
+		anno::in_group("Emissive")
+	]],
+	uniform float emissive_intensity = 40.f
+	[[
+		anno::enable_if("enable_emission == true"),
+		anno::display_name("Emissive Intensity"),    
+		anno::description("Intensity of the emission"),
+		anno::in_group("Emissive")
+	]],
+
+	// Cutout Opacity
+	uniform bool enable_opacity = true
+	[[
+		anno::display_name("Enable Opacity"),
+		anno::description("Enables the use of cutout opacity"),
+		anno::in_group("Opacity")
+	]],
+	uniform bool enable_opacity_texture = false
+	[[
+		anno::display_name("Enable Opacity Texture"),
+		anno::description("Enables or disables the usage of the opacity texture map"),
+		anno::in_group("Opacity")
+	]],
+	uniform float opacity_constant = 1.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Amount"),    
+		anno::description("Opacity value between 0 and 1, when Opacity Map is not valid"),
+		anno::in_group("Opacity")
+	]],
+	uniform texture_2d opacity_texture = texture_2d()
+	[[
+		anno::display_name("Opacity Map"),
+		anno::in_group("Opacity")
+	]],
+	uniform base::mono_mode opacity_mode = base::mono_average
+	[[
+		anno::display_name("Opacity Mono Source"),
+		anno::in_group("Opacity"),
+		anno::description("Determines how to lookup opacity from the supplied texture. mono_alpha, mono_average, mono_luminance, mono_maximum")
+	]],
+	uniform float opacity_threshold = 0.f
+	[[
+		anno::hard_range(0.0, 1.0),
+		anno::display_name("Opacity Threshold"),
+		anno::description("If negative, disable cutout_opacity; if 0, use fractional opacity values 'as is'; if > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+		anno::in_group("Opacity")
+	]],	
+	
+	// -------------------- Normal ----------------------
+	
+	
+	
+	/*
+	uniform bool enable_normalmap_texture = false
+	[[
+		anno::display_name("Enable Normal Texture"),
+		anno::description("Enables the usage of the normalmap texture"),
+		anno::in_group("Features")
+	]],
+	*/
+		uniform float bump_factor = 1.f
+	[[
+		anno::display_name("Normal Map Strength"),
+		anno::description("Strength of normal map."),
+		anno::in_group("Normal"),
+		anno::soft_range(0.0f, 1.0f)
+	]],
+	
+	uniform texture_2d normalmap_texture = texture_2d()
+	[[
+		anno::display_name("Normal Map"),
+		anno::description("Enables the usage of the normalmap texture"),
+		anno::in_group("Normal")
+	]], 
+	
+
+	
+/*	uniform bool enable_detail_normalmap_texture = false
+	[[
+		anno::display_name("Enable Detail Normal Texture"),
+		anno::in_group("Features"),
+		anno::description("Enables the usage of the detail normalmap texture")
+	]],
+*/
+	uniform float detail_bump_factor = .3f
+	[[
+		anno::display_name("Detail Normal Strength"),
+		anno::in_group("Normal"),
+		anno::soft_range(0.0f, 1.0f),
+		anno::description("Strength of the detail normal")
+	]],
+	uniform texture_2d detail_normalmap_texture = texture_2d()
+	[[
+		anno::display_name("Detail Normal Map"),
+		anno::in_group("Normal")
+	]],
+	// UV Projection Group
+	uniform bool project_uvw = false
+	[[
+		anno::display_name("Enable Project UVW Coordinates"),
+		anno::description("When enabled, UV coordinates will be generated by projecting them from a coordinate system"),
+		anno::in_group("UV")
+	]],
+	uniform bool world_or_object = false
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Enable World Space"),
+		anno::description("When set to 'true' uses world space for projection, when 'false' object space is used"),
+		anno::in_group("UV")
+	]],
+	
+	uniform int uv_space_index =  0
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("UV Space Index"),
+		anno::description("UV Space Index."),
+		anno::in_group("UV"),
+		anno::hard_range(0, 3)
+	]],
+	
+	// Adjustments Group
+	uniform float2 texture_translate =  float2(0.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Texture Translate"),
+		anno::description("Controls position of texture."),
+		anno::in_group("UV")
+	]],
+	uniform float texture_rotate =  0.f
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Texture Rotate"),
+		anno::description("Rotates angle of texture in degrees."),
+		anno::in_group("UV")
+	]],
+	uniform float2 texture_scale =  float2(1.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Texture Scale"),
+		anno::description("Larger number increases size of texture."),
+		anno::in_group("UV")
+	]],
+	
+	uniform float2 detail_texture_translate =  float2(0.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Detail Texture Translate"),
+		anno::description("Controls the position of the detail texture."),
+		anno::in_group("UV")
+	]],
+	uniform float detail_texture_rotate =  0.f
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Detail Texture Rotate"),
+		anno::description("Rotates angle of the detail texture in degrees."),
+		anno::in_group("UV")
+	]],
+	uniform float2 detail_texture_scale =  float2(1.0f)
+	[[
+		anno::enable_if("project_uvw == true"),
+		anno::display_name("Detail Texture Scale"),
+		anno::description("Larger numbers increase the size of the detail texture"),
+		anno::in_group("UV")
+	]]	
+) 
+[[
+	anno::display_name("OmniPBR Opacity"),
+	anno::description("OmniPBR supports opacity and ORM textures"),
+ 	anno::in_group("Base"),
+	anno::version( 2, 1, 0),
+	anno::author("NVIDIA CORPORATION"), 
+	anno::key_words(string[]("omni", "PBR", "opacity", "omniverse", "generic"))
+]]
+ = OmniPBR_ClearCoat_Opacity(
+	diffuse_texture:			diffuse_texture,
+    albedo_desaturation:		albedo_desaturation,
+    albedo_add: 				albedo_add,
+    albedo_brightness: 			albedo_brightness,
+	diffuse_color_constant: 	diffuse_color_constant,
+    diffuse_tint: 				diffuse_tint,
+	//ao
+	ao_texture: 				ao_texture,
+    ao_to_diffuse: 				ao_to_diffuse,
+    //ORM
+	ORM_texture: 				ORM_texture,
+    enable_ORM_texture: 		enable_ORM_texture,
+	//reflectivity
+    reflection_roughness_constant:			reflection_roughness_constant,
+    reflectionroughness_texture:			reflectionroughness_texture,
+    reflection_roughness_texture_influence:	reflection_roughness_texture_influence,
+    metallic_constant:						metallic_constant,
+    metallic_texture: 						metallic_texture,
+    metallic_texture_influence: 			metallic_texture_influence,
+    specular_level: 						specular_level,
+	//opacity
+	enable_opacity: 						enable_opacity,
+    enable_opacity_texture: 				enable_opacity_texture,
+	opacity_texture: 						opacity_texture,
+    opacity_constant: 						opacity_constant,
+	opacity_mode:							opacity_mode,
+	opacity_threshold:						opacity_threshold,
+	//emissive
+    enable_emission: 						enable_emission,
+    emissive_color: 						emissive_color,
+	emissive_color_texture:					emissive_color_texture,
+    emissive_mask_texture: 					emissive_mask_texture,
+    emissive_intensity: 					emissive_intensity,
+	//clearcoat
+    enable_clearcoat: 						false,
+    clearcoat_tint: 						color(1.0f),
+    clearcoat_transparency: 				1.0f,
+    clearcoat_reflection_roughness: 		0.0f,
+    clearcoat_weight: 						1.0f,
+    clearcoat_flatten: 						1.0f,
+    clearcoat_ior: 							1.56f,
+    clearcoat_bump_factor: 					1.f,
+    clearcoat_normalmap_texture: 			texture_2d(),
+	//normal
+    normalmap_texture: 						normalmap_texture,
+    bump_factor:							bump_factor,
+    detail_normalmap_texture: 				detail_normalmap_texture,
+    detail_bump_factor: 					detail_bump_factor,
+    project_uvw: 							project_uvw,
+    world_or_object: 						world_or_object,
+    uv_space_index: 						uv_space_index,
+    texture_translate: 						texture_translate,
+    texture_rotate: 						texture_rotate,
+    texture_scale: 							texture_scale,
+    detail_texture_translate: 				detail_texture_translate,
+    detail_texture_rotate: 					detail_texture_rotate,
+    detail_texture_scale: 					detail_texture_scale,
+	clearcoat_texture_translate: 			float2(0.0f),
+	clearcoat_texture_rotate:				0.0f,
+	clearcoat_texture_scale:				float2(1.0f)
+	);

saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/SubUSDs/materials/OmniSurface.mdl

@@ -0,0 +1,1688 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+
+// Wrapper for OmniSurfaceBase material
+
+mdl 1.7;
+
+import ::anno::*;
+import ::base::*;
+import ::limits::*;
+import ::state::*;
+import ::tex::*;
+
+import ::OmniSurface::OmniSurfaceBase::*;
+import ::OmniSurface::OmniShared::*;
+import ::OmniSurface::OmniImage::*;
+
+export material OmniSurface(
+
+    //Diffuse reflection
+    //
+    float diffuse_reflection_weight = float(0.8) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Base"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d diffuse_reflection_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Base"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode diffuse_reflection_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Base")
+    ]],
+
+    color diffuse_reflection_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Base")
+    ]],
+
+    uniform texture_2d diffuse_reflection_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Base")
+    ]],
+
+    float diffuse_reflection_roughness = float(0.0) [[ 
+        anno::display_name("Diffuse Roughness"),
+        anno::in_group("Base"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d diffuse_reflection_roughness_image = texture_2d() [[ 
+        anno::display_name("Diffuse Roughness Image"),
+        anno::in_group("Base"),
+        anno::usage("roughness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode diffuse_reflection_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Diffuse Roughness Alpha Mode"),
+        anno::in_group("Base")
+    ]],
+
+    //Metal
+    //
+    float metalness = float(0.0) [[ 
+        anno::display_name("Metalness"),
+        anno::in_group("Base"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d metalness_image = texture_2d() [[ 
+        anno::display_name("Metalness Image"),
+        anno::in_group("Base"),
+        anno::usage("metalness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode metalness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Metalness Image Alpha Mode"),
+        anno::in_group("Base")
+    ]],
+
+    //Specular reflection
+    //
+    float specular_reflection_weight = float(1.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Specular"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_reflection_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Specular"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.                
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_reflection_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Specular")
+    ]],
+
+    color specular_reflection_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Specular")
+    ]],
+
+    uniform texture_2d specular_reflection_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Specular")
+    ]],
+
+    float specular_reflection_roughness = float(0.2) [[ 
+        anno::display_name("Roughness"),
+        anno::in_group("Specular"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_reflection_roughness_image = texture_2d() [[ 
+        anno::display_name("Roughness Image"),
+        anno::in_group("Specular"),
+        anno::usage("roughness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_reflection_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Roughness Image Alpha Mode"),
+        anno::in_group("Specular")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::ior_presets specular_reflection_ior_preset = 
+        ::OmniSurface::OmniShared::ior_custom [[
+        anno::display_name("IOR Preset"),
+        anno::in_group("Specular")
+    ]],
+
+    uniform float specular_reflection_ior = float(1.5) [[ 
+        anno::display_name("IOR"),    
+        anno::in_group("Specular"),
+        anno::soft_range(1.0f, 5.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    float specular_reflection_anisotropy = float(0.0) [[ 
+        anno::display_name("Anisotropy"),
+        anno::in_group("Specular"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_reflection_anisotropy_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Image"),
+        anno::in_group("Specular"),
+        anno::usage("anisotropy")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_reflection_anisotropy_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Image Alpha Mode"),
+        anno::in_group("Specular")
+    ]],
+
+    float specular_reflection_anisotropy_rotation = float(0.0) [[ 
+        anno::display_name("Rotation (radian)"),
+        anno::in_group("Specular"),
+        anno::soft_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_reflection_anisotropy_rotation_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Rotation Image"),
+        anno::in_group("Specular"),
+        anno::usage("anisotropy_rotation")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_reflection_anisotropy_rotation_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Rotation Alpha Mode"),
+        anno::in_group("Specular")
+    ]],
+
+    //Specular transmission
+    //
+    uniform bool enable_specular_transmission = false [[
+        anno::display_name("Enable Transmission"),
+        anno::description("Enables the use of transmission"),
+        anno::in_group("Transmission")
+    ]],
+
+    float specular_transmission_weight = float(0.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Transmission"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_transmission_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Transmission"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_transmission_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Transmission")
+    ]],
+
+    color specular_transmission_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Transmission")
+    ]],
+
+    uniform texture_2d specular_transmission_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Transmission")
+    ]],
+
+    float specular_transmission_scattering_depth = float(0.0) [[ 
+        anno::display_name("Depth"),
+        anno::in_group("Transmission"),    
+        anno::soft_range(0.0f, 100.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    uniform texture_2d specular_transmission_scattering_depth_image = texture_2d() [[ 
+        anno::display_name("Depth Image"),
+        anno::in_group("Transmission"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_transmission_scattering_depth_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Depth Image Alpha Mode"),
+        anno::in_group("Transmission")
+    ]],
+
+    color specular_transmission_scattering_color = color(0.0) [[ 
+        anno::display_name("Scatter"),
+        anno::in_group("Transmission")
+    ]],
+
+    uniform texture_2d specular_transmission_scattering_color_image = texture_2d() [[ 
+        anno::display_name("Scatter Image"),
+        anno::in_group("Transmission")
+    ]],
+
+    float specular_transmission_scatter_anisotropy = float(0.0) [[ 
+        anno::display_name("Scatter Anisotropy"),
+        anno::in_group("Transmission"),
+        anno::hard_range(-1.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_transmission_scatter_anisotropy_image = texture_2d() [[ 
+        anno::display_name("Scatter Anisotropy Image"),
+        anno::in_group("Transmission")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_transmission_scatter_anisotropy_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Scatter Anisotropy Image Alpha Mode"),
+        anno::in_group("Transmission")
+    ]],
+
+    uniform float specular_transmission_dispersion_abbe = float(0.0) [[ 
+        anno::display_name("Dispersion Abbe"),    
+        anno::in_group("Transmission"),
+        anno::soft_range(0.0f, 100.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    //Subsurface
+    //
+    uniform bool enable_diffuse_transmission = false [[
+        anno::display_name("Enable Subsurface"),
+        anno::description("Enables the use of subsurface"),
+        anno::in_group("Subsurface")
+    ]],
+
+    float subsurface_weight = float(0.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Subsurface"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d subsurface_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Subsurface"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode subsurface_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Subsurface")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::scattering_colors_presets subsurface_scattering_colors_preset = 
+        ::OmniSurface::OmniShared::scattering_colors_custom [[
+        anno::display_name("Scattering Presets"),
+        anno::in_group("Subsurface")
+    ]],
+
+    color subsurface_transmission_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Subsurface")
+    ]],
+
+    uniform texture_2d subsurface_transmission_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Subsurface")
+    ]],
+
+    color subsurface_scattering_color = color(1.0) [[
+        anno::display_name("Radius (mfp)"),
+        anno::in_group("Subsurface")
+    ]],
+
+    uniform texture_2d subsurface_scattering_color_image = texture_2d() [[ 
+        anno::display_name("Radius Image"),
+        anno::in_group("Subsurface")
+    ]],
+
+    float subsurface_scale = float(1.0) [[
+        anno::display_name("Scale"),
+        anno::in_group("Subsurface"),
+        anno::soft_range(0.0f, 10.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    uniform texture_2d subsurface_scale_image = texture_2d() [[ 
+        anno::display_name("Scale Image"),
+        anno::in_group("Subsurface"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode subsurface_scale_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Scale Image Alpha Mode"),
+        anno::in_group("Subsurface")
+    ]],
+
+    float subsurface_anisotropy = float(0.0) [[ 
+        anno::display_name("Anisotropy"),
+        anno::in_group("Subsurface"),
+        anno::hard_range(-1.0f, 1.0f)
+    ]],
+
+    uniform texture_2d subsurface_anisotropy_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Image"),
+        anno::in_group("Subsurface"),
+        anno::usage("anisotropy")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode subsurface_anisotropy_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Image Alpha Mode"),
+        anno::in_group("Subsurface")
+    ]],
+
+    //Coat
+    //
+    float coat_weight = float(0.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Coat"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    color coat_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform texture_2d coat_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Coat")
+    ]],
+
+    float coat_roughness = float(0.1) [[ 
+        anno::display_name("Roughness"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_roughness_image = texture_2d() [[ 
+        anno::display_name("Roughness Image"),
+        anno::in_group("Coat"),
+        anno::usage("roughness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Roughness Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::ior_presets coat_ior_preset = 
+        ::OmniSurface::OmniShared::ior_custom [[
+        anno::display_name("IOR Preset"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform float coat_ior = float(1.5) [[ 
+        anno::display_name("IOR"),    
+        anno::in_group("Coat"),
+        anno::soft_range(1.0f, 5.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    float coat_anisotropy = float(0.0) [[ 
+        anno::display_name("Anisotropy"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_anisotropy_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Image"),
+        anno::in_group("Coat"),
+        anno::usage("anisotropy")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_anisotropy_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    float coat_anisotropy_rotation = float(0.0) [[ 
+        anno::display_name("Rotation (radian)"),
+        anno::in_group("Coat"),
+        anno::soft_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_anisotropy_rotation_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Rotation Image"),
+        anno::in_group("Coat"),
+        anno::usage("anisotropy_rotation")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_anisotropy_rotation_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Rotation Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    float coat_affect_color = float(0.0) [[
+        anno::display_name("Affect Color"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_affect_color_image = texture_2d() [[ 
+        anno::display_name("Affect Color Image"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_affect_color_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Affect Color Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    float coat_affect_roughness = float(0.0) [[
+        anno::display_name("Affect Roughness"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_affect_roughness_image = texture_2d() [[ 
+        anno::display_name("Affect Roughness Image"),
+        anno::in_group("Coat"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_affect_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Affect Roughness Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform float coat_normal_strength = float(1.0) [[ 
+        anno::display_name("Normal Strength"),
+        anno::in_group("Coat"),
+        anno::soft_range(0.0f, 1.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    float3 coat_normal = state::normal() [[
+        anno::display_name("Normal"),
+        anno::in_group("Coat"),
+        anno::usage("normal")
+    ]],
+
+    uniform texture_2d coat_normal_image = texture_2d() [[ 
+        anno::display_name("Normal Map Image"),
+        anno::in_group("Coat"),
+        anno::usage("normal")
+    ]],
+
+    uniform bool coat_normal_image_flip_r_channel = false [[
+        anno::display_name("Normal Map Flip R Channel"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform bool coat_normal_image_flip_g_channel = false [[
+        anno::display_name("Normal Map Flip G Channel"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform bool coat_normal_image_flip_b_channel = false [[
+        anno::display_name("Normal Map Flip B Channel"),
+        anno::in_group("Coat")
+    ]],
+
+    //Specular retro-reflection
+    //
+    float specular_retro_reflection_weight = float(0.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Sheen"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_retro_reflection_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Sheen"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_retro_reflection_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Sheen")
+    ]],
+
+    color specular_retro_reflection_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Sheen")
+    ]],
+
+    uniform texture_2d specular_retro_reflection_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Sheen")
+    ]],
+
+    float specular_retro_reflection_roughness = float(0.3) [[ 
+        anno::display_name("Roughness"),
+        anno::in_group("Sheen"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_retro_reflection_roughness_image = texture_2d() [[ 
+        anno::display_name("Roughness Image"),
+        anno::in_group("Sheen"),
+        anno::usage("roughness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_retro_reflection_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Roughness Image Alpha Mode"),
+        anno::in_group("Sheen")
+    ]],
+
+    //Emission
+    //
+    float emission_weight = float(0.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Emission"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d emission_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Emission"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode emission_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Emission")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::emission_mode emission_mode = 
+        ::OmniSurface::OmniShared::emission_lx [[
+        anno::display_name("Emission Mode"),
+        anno::in_group("Emission")
+    ]],
+
+    float emission_intensity = float(1.0) [[
+        anno::display_name("Intensity"),
+        anno::in_group("Emission"),
+        anno::soft_range(0.0f, 1000.0f)
+    ]],
+
+    uniform texture_2d emission_intensity_image = texture_2d() [[ 
+        anno::display_name("Intensity Image"),
+        anno::in_group("Emission"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode emission_intensity_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Intensity Image Alpha Mode"),
+        anno::in_group("Emission")
+    ]],
+
+    color emission_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Emission")
+    ]],
+
+    uniform texture_2d emission_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Emission")
+    ]],
+
+    uniform bool emission_use_temperature = false [[ 
+        anno::display_name("Use Temperature"),
+        anno::in_group("Emission")
+    ]],
+
+    float emission_temperature = float(6500.0) [[
+        anno::display_name("Temperature (kelvin)"),
+        anno::in_group("Emission"),
+        anno::soft_range(0.0f, 10000.0f)
+    ]],
+
+    uniform texture_2d emission_temperature_image = texture_2d() [[ 
+        anno::display_name("Temperature Image"),
+        anno::in_group("Emission"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode emission_temperature_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Temperature Image Alpha Mode"),
+        anno::in_group("Emission")
+    ]],
+
+    //Thin Film
+    //
+    uniform bool enable_thin_film = false [[ 
+        anno::display_name("Enable Thin Film"),
+        anno::description("Enable the use of thin film"),
+        anno::in_group("Thin Film")
+    ]],
+
+    float thin_film_thickness = float(400.0) [[
+        anno::display_name("Thickness (nm)"),
+        anno::in_group("Thin Film"),
+        anno::soft_range(0.0f, 2000.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    uniform texture_2d thin_film_thickness_image = texture_2d() [[ 
+        anno::display_name("Thickness Image"),
+        anno::in_group("Thin Film"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+   uniform ::OmniSurface::OmniImage::alpha_mode thin_film_thickness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Thickness Image Alpha Mode"),
+        anno::in_group("Thin Film")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::ior_presets thin_film_ior_preset = 
+        ::OmniSurface::OmniShared::ior_custom [[
+        anno::display_name("IOR Preset"),
+        anno::in_group("Thin Film")
+    ]],
+
+    uniform float thin_film_ior = float(1.5) [[
+        anno::display_name("IOR"),
+        anno::in_group("Thin Film"),
+        anno::soft_range(1.0f, 3.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    //Geometry
+    //
+    uniform bool thin_walled = false [[ 
+        anno::display_name("Thin Walled"),
+        anno::description("Thin surface with no interior."),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform bool enable_opacity = false [[
+        anno::display_name("Enable Opacity"),
+        anno::description("Enables the use of cutout opacity"),
+        anno::in_group("Geometry")
+    ]],
+
+    float geometry_opacity = float(1.0) [[
+        anno::display_name("Opacity"),
+        anno::in_group("Geometry"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d geometry_opacity_image = texture_2d() [[ 
+        anno::display_name("Opacity Image"),
+        anno::in_group("Geometry"),
+        anno::usage("opacity")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode geometry_opacity_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Opacity Image Alpha Mode"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform float geometry_opacity_threshold = float(0.0) [[
+        anno::display_name("Opacity Threshold"),
+        anno::description("If > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+        anno::in_group("Geometry"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform float geometry_normal_strength = float(1.0) [[ 
+        anno::display_name("Geometry Normal Strength"),
+        anno::in_group("Geometry"),
+        anno::soft_range(0.0f, 1.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+	uniform float geometry_normal_roughness_strength = float(1.0) [[
+		anno::display_name("Geometry Normal Roughness Strength"),
+		anno::in_group("Geometry"),
+        anno::hard_range(0.0f, 1.0f)
+	]],
+
+    float3 geometry_normal = state::normal() [[
+        anno::display_name("Geometry Normal"),
+        anno::in_group("Geometry"),
+        anno::usage("normal")
+    ]],
+
+    uniform texture_2d geometry_normal_image = texture_2d() [[ 
+        anno::display_name("Geometry Normal Map Image"),
+        anno::in_group("Geometry"),
+        anno::usage("normal")
+    ]],
+
+    uniform bool geometry_normal_image_flip_r_channel = false [[
+        anno::display_name("Normal Map Flip R Channel"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform bool geometry_normal_image_flip_g_channel = false [[
+        anno::display_name("Normal Map Flip G Channel"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform bool geometry_normal_image_flip_b_channel = false [[
+        anno::display_name("Normal Map Flip B Channel"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::tangent_bitangent_mapping geometry_tangent_bitangent_mapping = 
+        ::OmniSurface::OmniImage::red_green [[
+        anno::display_name("Tangent Bitangent Mapping"),
+        anno::in_group("Geometry")
+    ]],
+
+    //Displacement
+    float3 geometry_displacement = float3(0.0) [[
+        anno::display_name("Displacement"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::displacement_mode geometry_displacement_mode = 
+        ::OmniSurface::OmniShared::displacement_height [[
+            anno::display_name("Displacement Mode"),
+            anno::in_group("Geometry")
+    ]],
+
+    uniform texture_2d geometry_displacement_image = texture_2d() [[ 
+        anno::display_name("Displacement Image"),
+        anno::in_group("Geometry"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode geometry_displacement_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+            anno::display_name("Displacement Image Alpha Mode"),
+            anno::in_group("Geometry")
+    ]],
+
+    float geometry_displacement_scale = float(1.0) [[
+        anno::display_name("Displacement Scale"),
+        anno::in_group("Geometry"),
+        anno::soft_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d geometry_displacement_scale_image = texture_2d() [[ 
+        anno::display_name("Displacement Scale Image"),
+        anno::in_group("Geometry"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode geometry_displacement_scale_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+            anno::display_name("Displacement Scale Image Alpha Mode"),
+            anno::in_group("Geometry")
+    ]],
+
+    float geometry_displacement_scalar_zero_value = float(0.0) [[
+        anno::display_name("Displacement Scalar Zero Value"),
+        anno::in_group("Geometry"),
+        anno::soft_range(0.0f, 1.0f)
+    ]],
+
+    //UVW
+    //
+    uniform base::texture_coordinate_system uvw_texture_coordinate_system = 
+        base::texture_coordinate_uvw [[
+        anno::display_name("Texture Coordinate"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform int uvw_uv_set = 0 [[
+        anno::display_name("UV Set"),
+        anno::in_group("UVW Coordinates"),
+        anno::hard_range(0, 4)
+    ]],
+
+    uniform bool uvw_ignore_missing_textures = false [[
+        anno::display_name("Ignore Missing Images"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    color uvw_missing_texture_color = color(0.0, 0.0, 0.0) [[
+        anno::display_name("Missing Image Color"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform bool uvw_use_uv_coords = false [[
+        anno::display_name("Use UV Coords"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    float2 uvw_uv_coords = float2(0.0) [[
+        anno::display_name("UV Coords"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform float uvw_s_offset = 0.0f [[
+        anno::display_name("Offset U"),
+        anno::in_group("UVW Coordinates"),
+        anno::soft_range(-1.0f, 1.0f)
+    ]],
+
+    uniform float uvw_t_offset = 0.0f [[
+        anno::display_name("Offset V"),
+        anno::in_group("UVW Coordinates"),
+        anno::soft_range(-1.0f, 1.0f)
+    ]],
+
+    uniform ::OmniSurface::OmniImage::wrap_mode uvw_s_wrap = 
+        ::OmniSurface::OmniImage::wrap_periodic [[
+        anno::display_name("Wrap U"),
+        anno::in_group("UVW Coordinates")
+    ]],
+    
+    uniform ::OmniSurface::OmniImage::wrap_mode uvw_t_wrap = 
+        ::OmniSurface::OmniImage::wrap_periodic [[
+        anno::display_name("Wrap V"),
+        anno::in_group("UVW Coordinates")
+    ]],
+    
+    uniform float uvw_s_scale = 1.0f [[
+        anno::display_name("Scale U"),
+        anno::in_group("UVW Coordinates"),
+        anno::soft_range(0.0f, 100.0f)
+    ]],
+
+    uniform float uvw_t_scale = 1.0f [[
+        anno::display_name("Scale V"),
+        anno::in_group("UVW Coordinates"),
+        anno::soft_range(0.0f, 100.0f)
+    ]],
+
+    uniform bool uvw_s_flip = false [[
+        anno::display_name("Flip U"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform bool uvw_t_flip = false [[
+        anno::display_name("Flip V"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform bool uvw_swap_st = false [[
+        anno::display_name("Swap UV"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    //Projection Coordinates (Local / World)
+    uniform ::OmniSurface::OmniImage::projection_mode uvw_projection_mode = 
+        ::OmniSurface::OmniImage::projection_cubic [[
+        anno::display_name("Projection Mode"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform float3 uvw_projection_translate = float3(0.0) [[
+        anno::display_name("Translate"),
+        anno::description("Translate the projected texture."),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform float3 uvw_projection_rotate = float3(0.0) [[
+        anno::display_name("Rotate"),
+        anno::description("Rotate the projected texture."),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform float3 uvw_projection_scale = float3(1.0) [[
+        anno::display_name("Scale"),
+        anno::description("Scale the projected texture."),
+        anno::in_group("UVW Coordinates")
+    ]]
+) 
+[[
+    anno::display_name("OmniSurface"),
+    anno::description("A base material for modeling a variety of surfaces."),
+    anno::author("NVIDIA Corporation"),
+    anno::key_words(string[]("generic", "surface")),
+    anno::version(1, 0, 0, ""),
+ 	anno::in_group("Advanced")    
+]] = let {
+
+    base::texture_coordinate_info texture_coordinate_info = 
+        ::OmniSurface::OmniImage::compute_texture_coordinate_2(
+            uvw_texture_coordinate_system,
+            uvw_uv_set,
+            uvw_s_offset,
+            uvw_t_offset,
+            uvw_s_scale,
+            uvw_t_scale,
+            uvw_s_flip,
+            uvw_t_flip,
+            uvw_swap_st,
+            uvw_projection_mode,
+            uvw_projection_translate,
+            uvw_projection_rotate,
+            uvw_projection_scale);
+
+    ::OmniSurface::OmniImage::normal_roughness_data geometry_normal_roughness_data = 
+        tex::texture_isvalid(geometry_normal_image) ?
+            ::OmniSurface::OmniImage::tangent_space_normal_roughness_lookup_2(
+                geometry_normal_image,
+                uvw_ignore_missing_textures,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                uvw_s_flip,
+                uvw_t_flip,
+                geometry_normal_strength,
+                geometry_normal_image_flip_r_channel,
+                geometry_normal_image_flip_g_channel,
+                geometry_normal_image_flip_b_channel,
+                texture_coordinate_info
+            ) :
+            ::OmniSurface::OmniImage::normal_roughness_data(geometry_normal, float2(0.0));
+
+    material base = ::OmniSurface::OmniSurfaceBase::OmniSurfaceBase(
+
+        //Base
+        //
+        diffuse_reflection_weight: tex::texture_isvalid(diffuse_reflection_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    diffuse_reflection_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                diffuse_reflection_weight_image_alpha_mode
+            ).mono :
+            diffuse_reflection_weight,
+
+        diffuse_reflection_color: tex::texture_isvalid(diffuse_reflection_color_image) ? 
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                diffuse_reflection_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            diffuse_reflection_color,
+
+        diffuse_reflection_roughness: tex::texture_isvalid(diffuse_reflection_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    diffuse_reflection_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                diffuse_reflection_roughness_image_alpha_mode
+            ).mono :
+            diffuse_reflection_roughness,
+
+        //Metalness
+        //
+        metalness: tex::texture_isvalid(metalness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    metalness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                metalness_image_alpha_mode
+            ).mono :
+            metalness,
+
+        //Specular reflection
+        //
+        specular_reflection_weight: tex::texture_isvalid(specular_reflection_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_reflection_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_reflection_weight_image_alpha_mode
+            ).mono :
+            specular_reflection_weight,
+
+        specular_reflection_color: tex::texture_isvalid(specular_reflection_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                specular_reflection_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            specular_reflection_color,
+
+        specular_reflection_roughness: tex::texture_isvalid(specular_reflection_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_reflection_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_reflection_roughness_image_alpha_mode
+            ).mono :
+            specular_reflection_roughness,
+
+        specular_reflection_ior_preset: specular_reflection_ior_preset,
+        specular_reflection_ior: specular_reflection_ior,
+
+        specular_reflection_anisotropy: tex::texture_isvalid(specular_reflection_anisotropy_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_reflection_anisotropy_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_reflection_anisotropy_image_alpha_mode
+            ).mono :
+            specular_reflection_anisotropy,
+
+        specular_reflection_anisotropy_rotation: tex::texture_isvalid(specular_reflection_anisotropy_rotation_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_reflection_anisotropy_rotation_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_reflection_anisotropy_rotation_image_alpha_mode
+            ).mono :
+            specular_reflection_anisotropy_rotation,
+
+        //Specular transmission
+        //
+        enable_specular_transmission: enable_specular_transmission,
+
+        specular_transmission_weight: tex::texture_isvalid(specular_transmission_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_transmission_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_transmission_weight_image_alpha_mode
+            ).mono :
+            specular_transmission_weight,
+
+        specular_transmission_color: tex::texture_isvalid(specular_transmission_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                specular_transmission_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            specular_transmission_color,
+
+        specular_transmission_scattering_depth: tex::texture_isvalid(specular_transmission_scattering_depth_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_transmission_scattering_depth_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_transmission_scattering_depth_image_alpha_mode
+            ).mono :
+            specular_transmission_scattering_depth,
+
+        specular_transmission_scattering_color: tex::texture_isvalid(specular_transmission_scattering_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                specular_transmission_scattering_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            specular_transmission_scattering_color,
+
+        specular_transmission_scatter_anisotropy: tex::texture_isvalid(specular_transmission_scatter_anisotropy_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_transmission_scatter_anisotropy_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_transmission_scatter_anisotropy_image_alpha_mode
+            ).mono :
+            specular_transmission_scatter_anisotropy,
+        
+        specular_transmission_dispersion_abbe: specular_transmission_dispersion_abbe,
+
+        //Subsurface
+        //
+        enable_diffuse_transmission: enable_diffuse_transmission,
+
+        subsurface_weight: tex::texture_isvalid(subsurface_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    subsurface_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                subsurface_weight_image_alpha_mode
+            ).mono :
+            subsurface_weight,
+
+        subsurface_scattering_colors_preset: subsurface_scattering_colors_preset,
+
+        subsurface_transmission_color: tex::texture_isvalid(subsurface_transmission_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                subsurface_transmission_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            subsurface_transmission_color,
+        
+        subsurface_scattering_color: tex::texture_isvalid(subsurface_scattering_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                subsurface_scattering_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            subsurface_scattering_color,
+
+        subsurface_scale: tex::texture_isvalid(subsurface_scale_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    subsurface_scale_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                subsurface_scale_image_alpha_mode
+            ).mono :
+            subsurface_scale,
+
+        subsurface_anisotropy: tex::texture_isvalid(subsurface_anisotropy_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    subsurface_anisotropy_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                subsurface_anisotropy_image_alpha_mode
+            ).mono :
+            subsurface_anisotropy,
+
+        //Coat
+        //
+        coat_weight: tex::texture_isvalid(coat_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_weight_image_alpha_mode
+            ).mono :
+            coat_weight,
+
+        coat_color: tex::texture_isvalid(coat_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                coat_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            coat_color,
+
+        coat_roughness: tex::texture_isvalid(coat_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_roughness_image_alpha_mode
+            ).mono :
+            coat_roughness,
+
+        coat_ior_preset: coat_ior_preset,
+        coat_ior: coat_ior,
+
+        coat_anisotropy: tex::texture_isvalid(coat_anisotropy_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_anisotropy_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_anisotropy_image_alpha_mode
+            ).mono :
+            coat_anisotropy,
+
+        coat_anisotropy_rotation: tex::texture_isvalid(coat_anisotropy_rotation_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_anisotropy_rotation_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_anisotropy_rotation_image_alpha_mode
+            ).mono :
+            coat_anisotropy_rotation,
+
+        coat_affect_color: tex::texture_isvalid(coat_affect_color_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_affect_color_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_affect_color_image_alpha_mode
+            ).mono :
+            coat_affect_color,
+
+        coat_affect_roughness: tex::texture_isvalid(coat_affect_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_affect_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_affect_roughness_image_alpha_mode
+            ).mono :
+            coat_affect_roughness,
+
+        coat_normal: tex::texture_isvalid(coat_normal_image) ?
+            ::OmniSurface::OmniImage::normal_mapping(
+                ::OmniSurface::OmniImage::tangent_space_normal_lookup_2(
+                    coat_normal_image,
+                    uvw_ignore_missing_textures,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    uvw_s_flip,
+                    uvw_t_flip,
+                    coat_normal_strength,
+                    coat_normal_image_flip_r_channel,
+                    coat_normal_image_flip_g_channel,
+                    coat_normal_image_flip_b_channel,
+                    texture_coordinate_info
+                ),
+                geometry_tangent_bitangent_mapping,
+                coat_normal
+            ):
+            coat_normal,
+
+        //Specular retro reflection
+        //
+        specular_retro_reflection_weight: tex::texture_isvalid(specular_retro_reflection_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_retro_reflection_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_retro_reflection_weight_image_alpha_mode
+            ).mono :
+            specular_retro_reflection_weight,
+
+        specular_retro_reflection_color: tex::texture_isvalid(specular_retro_reflection_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                specular_retro_reflection_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            specular_retro_reflection_color,
+
+        specular_retro_reflection_roughness: tex::texture_isvalid(specular_retro_reflection_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_retro_reflection_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_retro_reflection_roughness_image_alpha_mode
+            ).mono :
+            specular_retro_reflection_roughness,
+
+        //Emission
+        //
+        emission_weight: tex::texture_isvalid(emission_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    emission_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                emission_weight_image_alpha_mode
+            ).mono :
+            emission_weight,
+
+        emission_mode: emission_mode,
+
+        emission_intensity: tex::texture_isvalid(emission_intensity_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    emission_intensity_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                emission_intensity_image_alpha_mode
+            ).mono :
+            emission_intensity,
+
+        emission_color: tex::texture_isvalid(emission_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                emission_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+        emission_color,
+
+        emission_use_temperature: emission_use_temperature,
+
+        emission_temperature: tex::texture_isvalid(emission_temperature_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    emission_temperature_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                emission_temperature_image_alpha_mode
+            ).mono :
+            emission_temperature,
+
+        //Thin Film
+        //
+        enable_thin_film: enable_thin_film,
+
+        thin_film_thickness: tex::texture_isvalid(thin_film_thickness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    thin_film_thickness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                thin_film_thickness_image_alpha_mode
+            ).mono :
+            thin_film_thickness,
+
+        thin_film_ior_preset: thin_film_ior_preset,
+        thin_film_ior: thin_film_ior,
+
+        //Geometry
+        //
+        thin_walled: thin_walled,
+
+        enable_opacity: enable_opacity,
+
+        geometry_opacity: tex::texture_isvalid(geometry_opacity_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    geometry_opacity_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                geometry_opacity_image_alpha_mode
+            ).mono :
+            geometry_opacity,
+
+        geometry_opacity_threshold: geometry_opacity_threshold,
+
+        geometry_normal_roughness_strength: geometry_normal_roughness_strength,
+
+        geometry_normal_roughness: geometry_normal_roughness_data.roughness,
+
+        geometry_normal: ::OmniSurface::OmniImage::normal_mapping(
+            geometry_normal_roughness_data.normal,
+            geometry_tangent_bitangent_mapping,
+            geometry_normal),
+
+        geometry_displacement: tex::texture_isvalid(geometry_displacement_image) ?
+            ::OmniSurface::OmniShared::displacement_adjustment(
+                (geometry_displacement_mode == ::OmniSurface::OmniShared::displacement_height) ?
+                    float3(::OmniSurface::OmniImage::texture_adjustment_2(
+                        OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                            ::OmniSurface::OmniImage::texture_lookup_2(
+                                geometry_displacement_image,
+                                uvw_ignore_missing_textures,
+                                uvw_missing_texture_color,
+                                uvw_use_uv_coords,
+                                uvw_uv_coords,
+                                uvw_s_wrap,
+                                uvw_t_wrap,
+                                texture_coordinate_info
+                            ),
+                            geometry_displacement_image_alpha_mode
+                        ),
+                        0.0f,       //exposure
+                        color(0.5), //default_color
+                        color(1.0), //color_gain
+                        color(0.0), //color_offset
+                        1.0f,       //alpha_gain
+                        -1.0f * geometry_displacement_scalar_zero_value, //alpha_offset
+                        false,      //invert
+                        0.0f        //blend_factor
+                    ).mono) :
+
+                    float3(::OmniSurface::OmniImage::texture_lookup_2(
+                            geometry_displacement_image,
+                            uvw_ignore_missing_textures,
+                            uvw_missing_texture_color,
+                            uvw_use_uv_coords,
+                            uvw_uv_coords,
+                            uvw_s_wrap,
+                            uvw_t_wrap,
+                            texture_coordinate_info
+                        ).tint
+                    ),
+
+                geometry_displacement_mode,
+
+                tex::texture_isvalid(geometry_displacement_scale_image) ?
+                    ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                        ::OmniSurface::OmniImage::texture_lookup_2(
+                            geometry_displacement_scale_image,
+                            uvw_ignore_missing_textures,
+                            uvw_missing_texture_color,
+                            uvw_use_uv_coords,
+                            uvw_uv_coords,
+                            uvw_s_wrap,
+                            uvw_t_wrap,
+                            texture_coordinate_info
+                        ),
+                        geometry_displacement_scale_image_alpha_mode
+                    ).mono :
+                    geometry_displacement_scale
+            ):
+            geometry_displacement
+    );
+
+} in material(
+    thin_walled: base.thin_walled,
+    ior: base.ior,
+    surface: base.surface,
+    backface: base.backface,
+    volume: base.volume,
+    geometry: base.geometry
+);

saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/SubUSDs/materials/OmniSurfaceLite.mdl

@@ -0,0 +1,1187 @@
+/***************************************************************************************************
+ * Copyright 2020 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ **************************************************************************************************/
+ 
+// Wrapper for OmniSurfaceLiteBase material
+
+mdl 1.7;
+
+import ::anno::*;
+import ::base::*;
+import ::limits::*;
+import ::state::*;
+import ::tex::*;
+
+import ::OmniSurface::OmniSurfaceLiteBase::*;
+import ::OmniSurface::OmniShared::*;
+import ::OmniSurface::OmniImage::*;
+
+export material OmniSurfaceLite(
+
+    //Diffuse reflection
+    //
+    float diffuse_reflection_weight = float(0.8) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Base"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d diffuse_reflection_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Base"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode diffuse_reflection_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Base")
+    ]],
+
+    color diffuse_reflection_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Base")
+    ]],
+
+    uniform texture_2d diffuse_reflection_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Base")
+    ]],
+
+    float diffuse_reflection_roughness = float(0.0) [[ 
+        anno::display_name("Diffuse Roughness"),
+        anno::in_group("Base"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d diffuse_reflection_roughness_image = texture_2d() [[ 
+        anno::display_name("Diffuse Roughness Image"),
+        anno::in_group("Base"),
+        anno::usage("roughness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode diffuse_reflection_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Diffuse Roughness Alpha Mode"),
+        anno::in_group("Base")
+    ]],
+
+    //Metal
+    //
+    float metalness = float(0.0) [[ 
+        anno::display_name("Metalness"),
+        anno::in_group("Base"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d metalness_image = texture_2d() [[ 
+        anno::display_name("Metalness Image"),
+        anno::in_group("Base"),
+        anno::usage("metalness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode metalness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Metalness Image Alpha Mode"),
+        anno::in_group("Base")
+    ]],
+
+    //Specular reflection
+    //
+    float specular_reflection_weight = float(1.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Specular"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_reflection_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Specular"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_reflection_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Specular")
+    ]],
+
+    color specular_reflection_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Specular")
+    ]],
+
+    uniform texture_2d specular_reflection_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Specular")
+    ]],
+
+    float specular_reflection_roughness = float(0.2) [[ 
+        anno::display_name("Roughness"),
+        anno::in_group("Specular"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_reflection_roughness_image = texture_2d() [[ 
+        anno::display_name("Roughness Image"),
+        anno::in_group("Specular"),
+        anno::usage("roughness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_reflection_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Roughness Image Alpha Mode"),
+        anno::in_group("Specular")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::ior_presets specular_reflection_ior_preset = 
+        ::OmniSurface::OmniShared::ior_custom [[
+        anno::display_name("IOR Preset"),
+        anno::in_group("Specular")
+    ]],
+
+    uniform float specular_reflection_ior = float(1.5) [[ 
+        anno::display_name("IOR"),    
+        anno::in_group("Specular"),
+        anno::soft_range(1.0f, 5.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    float specular_reflection_anisotropy = float(0.0) [[ 
+        anno::display_name("Anisotropy"),
+        anno::in_group("Specular"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_reflection_anisotropy_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Image"),
+        anno::in_group("Specular"),
+        anno::usage("aniotropy")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_reflection_anisotropy_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Image Alpha Mode"),
+        anno::in_group("Specular")
+    ]],
+
+    float specular_reflection_anisotropy_rotation = float(0.0) [[ 
+        anno::display_name("Rotation (radian)"),
+        anno::in_group("Specular"),
+        anno::soft_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d specular_reflection_anisotropy_rotation_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Rotation Image"),
+        anno::in_group("Specular"),
+        anno::usage("anisotropy_rotation")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode specular_reflection_anisotropy_rotation_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Rotation Alpha Mode"),
+        anno::in_group("Specular")
+    ]],
+
+    //Coat
+    //
+    float coat_weight = float(0.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Coat"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    color coat_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform texture_2d coat_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Coat")
+    ]],
+
+    float coat_roughness = float(0.1) [[ 
+        anno::display_name("Roughness"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_roughness_image = texture_2d() [[ 
+        anno::display_name("Roughness Image"),
+        anno::in_group("Coat"),
+        anno::usage("roughness")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Roughness Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::ior_presets coat_ior_preset = 
+        ::OmniSurface::OmniShared::ior_custom [[
+        anno::display_name("IOR Preset"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform float coat_ior = float(1.5) [[ 
+        anno::display_name("IOR"),    
+        anno::in_group("Coat"),
+        anno::soft_range(1.0f, 5.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    float coat_anisotropy = float(0.0) [[ 
+        anno::display_name("Anisotropy"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_anisotropy_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Image"),
+        anno::in_group("Coat"),
+        anno::usage("anisotropy")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_anisotropy_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    float coat_anisotropy_rotation = float(0.0) [[ 
+        anno::display_name("Rotation (radian)"),
+        anno::in_group("Coat"),
+        anno::soft_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_anisotropy_rotation_image = texture_2d() [[ 
+        anno::display_name("Anisotropy Rotation Image"),
+        anno::in_group("Coat"),
+        anno::usage("anistropy_rotation")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_anisotropy_rotation_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Anisotropy Rotation Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    float coat_affect_color = float(0.0) [[
+        anno::display_name("Affect Color"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_affect_color_image = texture_2d() [[ 
+        anno::display_name("Affect Color Image"),
+        anno::in_group("Coat"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_affect_color_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Affect Color Image Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    float coat_affect_roughness = float(0.0) [[
+        anno::display_name("Affect Roughness"),
+        anno::in_group("Coat"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d coat_affect_roughness_image = texture_2d() [[ 
+        anno::display_name("Affect Roughness Image"),
+        anno::in_group("Coat"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode coat_affect_roughness_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Affect Roughness Alpha Mode"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform float coat_normal_strength = float(1.0) [[ 
+        anno::display_name("Normal Strength"),
+        anno::in_group("Coat"),
+        anno::soft_range(0.0f, 1.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+    float3 coat_normal = state::normal() [[
+        anno::display_name("Normal"),
+        anno::in_group("Coat"),
+        anno::usage("normal")
+    ]],
+
+    uniform texture_2d coat_normal_image = texture_2d() [[ 
+        anno::display_name("Normal Map Image"),
+        anno::in_group("Coat"),
+        anno::usage("normal")
+    ]],
+
+    uniform bool coat_normal_image_flip_r_channel = false [[
+        anno::display_name("Normal Map Flip R Channel"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform bool coat_normal_image_flip_g_channel = false [[
+        anno::display_name("Normal Map Flip G Channel"),
+        anno::in_group("Coat")
+    ]],
+
+    uniform bool coat_normal_image_flip_b_channel = false [[
+        anno::display_name("Normal Map Flip B Channel"),
+        anno::in_group("Coat")
+    ]],
+
+    //Emission
+    //
+    float emission_weight = float(0.0) [[ 
+        anno::display_name("Weight"),
+        anno::in_group("Emission"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d emission_weight_image = texture_2d() [[ 
+        anno::display_name("Weight Image"),
+        anno::in_group("Emission"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode emission_weight_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Weight Image Alpha Mode"),
+        anno::in_group("Emission")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::emission_mode emission_mode = 
+        ::OmniSurface::OmniShared::emission_lx
+    [[
+        anno::display_name("Emission Mode"),
+        anno::in_group("Emission")
+    ]],
+
+    float emission_intensity = float(1.0) [[
+        anno::display_name("Intensity"),
+        anno::in_group("Emission"),
+        anno::soft_range(0.0f, 1000.0f)
+    ]],
+
+    uniform texture_2d emission_intensity_image = texture_2d() [[ 
+        anno::display_name("Intensity Image"),
+        anno::in_group("Emission"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode emission_intensity_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Intensity Image Alpha Mode"),
+        anno::in_group("Emission")
+    ]],
+
+    color emission_color = color(1.0) [[
+        anno::display_name("Color"),
+        anno::in_group("Emission")
+    ]],
+
+    uniform texture_2d emission_color_image = texture_2d() [[ 
+        anno::display_name("Color Image"),
+        anno::in_group("Emission")
+    ]],
+
+    uniform bool emission_use_temperature = false [[ 
+        anno::display_name("Use Temperature"),
+        anno::in_group("Emission")
+    ]],
+
+    float emission_temperature = float(6500.0) [[
+        anno::display_name("Temperature (kelvin)"),
+        anno::in_group("Emission"),
+        anno::soft_range(0.0f, 10000.0f)
+    ]],
+
+    uniform texture_2d emission_temperature_image = texture_2d() [[ 
+        anno::display_name("Temperature Image"),
+        anno::in_group("Emission"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode emission_temperature_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Temperature Image Alpha Mode"),
+        anno::in_group("Emission")
+    ]],
+
+    //Geometry
+    //
+    uniform bool enable_opacity = false [[
+        anno::display_name("Enable Opacity"),
+        anno::description("Enables the use of cutout opacity"),
+        anno::in_group("Geometry")
+    ]],
+
+    float geometry_opacity = float(1.0) [[
+        anno::display_name("Opacity"),
+        anno::in_group("Geometry"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d geometry_opacity_image = texture_2d() [[ 
+        anno::display_name("Opacity Image"),
+        anno::in_group("Geometry"),
+        anno::usage("opacity")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode geometry_opacity_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+        anno::display_name("Opacity Image Alpha Mode"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform float geometry_opacity_threshold = float(0.0) [[
+        anno::display_name("Opacity Threshold"),
+        anno::description("If > 0, remap opacity values to 1 when >= threshold and to 0 otherwise"),
+        anno::in_group("Geometry"),
+        anno::hard_range(0.0f, 1.0f)
+    ]],
+
+    uniform float geometry_normal_strength = float(1.0) [[ 
+        anno::display_name("Geometry Normal Strength"),
+        anno::in_group("Geometry"),
+        anno::soft_range(0.0f, 1.0f),
+        anno::hard_range(0.0f, limits::FLOAT_MAX)
+    ]],
+
+	uniform float geometry_normal_roughness_strength = float(1.0) [[
+		anno::display_name("Geometry Normal Roughness Strength"),
+		anno::in_group("Geometry"),
+        anno::hard_range(0.0f, 1.0f)
+	]],
+
+    float3 geometry_normal = state::normal() [[
+        anno::display_name("Geometry Normal"),
+        anno::in_group("Geometry"),
+        anno::usage("normal")
+    ]],
+
+    uniform texture_2d geometry_normal_image = texture_2d() [[ 
+        anno::display_name("Geometry Normal Map Image"),
+        anno::in_group("Geometry"),
+        anno::usage("normal")
+    ]],
+
+    uniform bool geometry_normal_image_flip_r_channel = false [[
+        anno::display_name("Normal Map Flip R Channel"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform bool geometry_normal_image_flip_g_channel = false [[
+        anno::display_name("Normal Map Flip G Channel"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform bool geometry_normal_image_flip_b_channel = false [[
+        anno::display_name("Normal Map Flip B Channel"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform ::OmniSurface::OmniImage::tangent_bitangent_mapping geometry_tangent_bitangent_mapping = 
+        ::OmniSurface::OmniImage::red_green [[
+        anno::display_name("Tangent Bitangent Mapping"),
+        anno::in_group("Geometry")
+    ]],
+
+    //Displacement
+    float3 geometry_displacement = float3(0.0) [[
+        anno::display_name("Displacement"),
+        anno::in_group("Geometry")
+    ]],
+
+    uniform ::OmniSurface::OmniShared::displacement_mode geometry_displacement_mode = 
+        ::OmniSurface::OmniShared::displacement_height [[
+            anno::display_name("Displacement Mode"),
+            anno::in_group("Geometry")
+    ]],
+
+    uniform texture_2d geometry_displacement_image = texture_2d() [[ 
+        anno::display_name("Displacement Image"),
+        anno::in_group("Geometry"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode geometry_displacement_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+            anno::display_name("Displacement Image Alpha Mode"),
+            anno::in_group("Geometry")
+    ]],
+
+    float geometry_displacement_scale = float(1.0) [[
+        anno::display_name("Displacement Scale"),
+        anno::in_group("Geometry"),
+        anno::soft_range(0.0f, 1.0f)
+    ]],
+
+    uniform texture_2d geometry_displacement_scale_image = texture_2d() [[ 
+        anno::display_name("Displacement Scale Image"),
+        anno::in_group("Geometry"),
+        anno::usage("occlusion") // Don't have usage type for scalar maps. Substituting for now.        
+    ]],
+
+    uniform ::OmniSurface::OmniImage::alpha_mode geometry_displacement_scale_image_alpha_mode = 
+        ::OmniSurface::OmniImage::alpha_default [[
+            anno::display_name("Displacement Scale Image Alpha Mode"),
+            anno::in_group("Geometry")
+    ]],
+
+    float geometry_displacement_scalar_zero_value = float(0.0) [[
+        anno::display_name("Displacement Scalar Zero Value"),
+        anno::in_group("Geometry"),
+        anno::soft_range(0.0f, 1.0f)
+    ]],
+
+    //UVW
+    //
+    uniform base::texture_coordinate_system uvw_texture_coordinate_system = 
+        base::texture_coordinate_uvw [[
+        anno::display_name("Texture Coordinate"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform int uvw_uv_set = 0 [[
+        anno::display_name("UV Set"),
+        anno::in_group("UVW Coordinates"),
+        anno::hard_range(0, 4)
+    ]],
+
+    uniform bool uvw_ignore_missing_textures = false [[
+        anno::display_name("Ignore Missing Images"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    color uvw_missing_texture_color = color(0.0, 0.0, 0.0) [[
+        anno::display_name("Missing Image Color"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform bool uvw_use_uv_coords = false [[
+        anno::display_name("Use UV Coords"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    float2 uvw_uv_coords = float2(0.0) [[
+        anno::display_name("UV Coords"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform float uvw_s_offset = 0.0f [[
+        anno::display_name("Offset U"),
+        anno::in_group("UVW Coordinates"),
+        anno::soft_range(-1.0f, 1.0f)
+    ]],
+
+    uniform float uvw_t_offset = 0.0f [[
+        anno::display_name("Offset V"),
+        anno::in_group("UVW Coordinates"),
+        anno::soft_range(-1.0f, 1.0f)
+    ]],
+
+    uniform ::OmniSurface::OmniImage::wrap_mode uvw_s_wrap = 
+        ::OmniSurface::OmniImage::wrap_periodic [[
+        anno::display_name("Wrap U"),
+        anno::in_group("UVW Coordinates")
+    ]],
+    
+    uniform ::OmniSurface::OmniImage::wrap_mode uvw_t_wrap = 
+        ::OmniSurface::OmniImage::wrap_periodic [[
+        anno::display_name("Wrap V"),
+        anno::in_group("UVW Coordinates")
+    ]],
+    
+    uniform float uvw_s_scale = 1.0f [[
+        anno::display_name("Scale U"),
+        anno::in_group("UVW Coordinates"),
+        anno::soft_range(0.0f, 100.0f)
+    ]],
+
+    uniform float uvw_t_scale = 1.0f [[
+        anno::display_name("Scale V"),
+        anno::in_group("UVW Coordinates"),
+        anno::soft_range(0.0f, 100.0f)
+    ]],
+
+    uniform bool uvw_s_flip = false [[
+        anno::display_name("Flip U"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform bool uvw_t_flip = false [[
+        anno::display_name("Flip V"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform bool uvw_swap_st = false [[
+        anno::display_name("Swap UV"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    //Projection Coordinates (Local / World)
+    uniform ::OmniSurface::OmniImage::projection_mode uvw_projection_mode = 
+        ::OmniSurface::OmniImage::projection_cubic [[
+        anno::display_name("Projection Mode"),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform float3 uvw_projection_translate = float3(0.0) [[
+        anno::display_name("Translate"),
+        anno::description("Translate the projected texture."),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform float3 uvw_projection_rotate = float3(0.0) [[
+        anno::display_name("Rotate"),
+        anno::description("Rotate the projected texture."),
+        anno::in_group("UVW Coordinates")
+    ]],
+
+    uniform float3 uvw_projection_scale = float3(1.0) [[
+        anno::display_name("Scale"),
+        anno::description("Scale the projected texture."),
+        anno::in_group("UVW Coordinates")
+    ]]
+) 
+[[
+    anno::display_name("OmniSurfaceLite"),
+    anno::description("A base material for modeling a variety of surfaces."),
+    anno::author("NVIDIA Corporation"),
+    anno::key_words(string[]("generic", "surface")),
+    anno::version(1, 0, 0, ""),
+ 	anno::in_group("Advanced")
+]] = let {
+    
+    base::texture_coordinate_info texture_coordinate_info = 
+        ::OmniSurface::OmniImage::compute_texture_coordinate_2(
+            uvw_texture_coordinate_system,
+            uvw_uv_set,
+            uvw_s_offset,
+            uvw_t_offset,
+            uvw_s_scale,
+            uvw_t_scale,
+            uvw_s_flip,
+            uvw_t_flip,
+            uvw_swap_st,
+            uvw_projection_mode,
+            uvw_projection_translate,
+            uvw_projection_rotate,
+            uvw_projection_scale);
+
+    ::OmniSurface::OmniImage::normal_roughness_data geometry_normal_roughness_data = 
+        tex::texture_isvalid(geometry_normal_image) ?
+            ::OmniSurface::OmniImage::tangent_space_normal_roughness_lookup_2(
+                geometry_normal_image,
+                uvw_ignore_missing_textures,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                uvw_s_flip,
+                uvw_t_flip,
+                geometry_normal_strength,
+                geometry_normal_image_flip_r_channel,
+                geometry_normal_image_flip_g_channel,
+                geometry_normal_image_flip_b_channel,
+                texture_coordinate_info
+            ) :
+            ::OmniSurface::OmniImage::normal_roughness_data(geometry_normal, float2(0.0));
+
+    material base = ::OmniSurface::OmniSurfaceLiteBase::OmniSurfaceLiteBase (
+
+        //Base
+        //
+        diffuse_reflection_weight: tex::texture_isvalid(diffuse_reflection_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    diffuse_reflection_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                diffuse_reflection_weight_image_alpha_mode
+            ).mono :
+            diffuse_reflection_weight,
+
+        diffuse_reflection_color: tex::texture_isvalid(diffuse_reflection_color_image) ? 
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                diffuse_reflection_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            diffuse_reflection_color,
+
+        diffuse_reflection_roughness: tex::texture_isvalid(diffuse_reflection_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    diffuse_reflection_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                diffuse_reflection_roughness_image_alpha_mode
+            ).mono :
+            diffuse_reflection_roughness,
+
+        //Metalness
+        //
+        metalness: tex::texture_isvalid(metalness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    metalness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                metalness_image_alpha_mode
+            ).mono :
+            metalness,
+    
+        //Specular reflection
+        //
+        specular_reflection_weight: tex::texture_isvalid(specular_reflection_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_reflection_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_reflection_weight_image_alpha_mode
+            ).mono :
+            specular_reflection_weight,
+
+        specular_reflection_color: tex::texture_isvalid(specular_reflection_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                specular_reflection_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            specular_reflection_color,
+
+        specular_reflection_roughness: tex::texture_isvalid(specular_reflection_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_reflection_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_reflection_roughness_image_alpha_mode
+            ).mono :
+            specular_reflection_roughness,
+
+        specular_reflection_ior_preset: specular_reflection_ior_preset,
+        specular_reflection_ior: specular_reflection_ior,
+
+        specular_reflection_anisotropy: tex::texture_isvalid(specular_reflection_anisotropy_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_reflection_anisotropy_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_reflection_anisotropy_image_alpha_mode
+            ).mono :
+            specular_reflection_anisotropy,
+
+        specular_reflection_anisotropy_rotation: tex::texture_isvalid(
+                specular_reflection_anisotropy_rotation_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    specular_reflection_anisotropy_rotation_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                specular_reflection_anisotropy_rotation_image_alpha_mode
+            ).mono :
+            specular_reflection_anisotropy_rotation,
+
+        //Coat
+        //
+        coat_weight: tex::texture_isvalid(coat_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_weight_image_alpha_mode
+            ).mono :
+            coat_weight,
+
+        coat_color: tex::texture_isvalid(coat_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                coat_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+            coat_color,
+
+        coat_roughness: tex::texture_isvalid(coat_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_roughness_image_alpha_mode
+            ).mono :
+            coat_roughness,
+
+        coat_ior_preset: coat_ior_preset,
+        coat_ior: coat_ior,
+
+        coat_anisotropy: tex::texture_isvalid(coat_anisotropy_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_anisotropy_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_anisotropy_image_alpha_mode
+            ).mono :
+            coat_anisotropy,
+
+        coat_anisotropy_rotation: tex::texture_isvalid(coat_anisotropy_rotation_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_anisotropy_rotation_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_anisotropy_rotation_image_alpha_mode
+            ).mono :
+            coat_anisotropy_rotation,
+
+        coat_affect_color: tex::texture_isvalid(coat_affect_color_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_affect_color_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_affect_color_image_alpha_mode
+            ).mono :
+            coat_affect_color,
+
+        coat_affect_roughness: tex::texture_isvalid(coat_affect_roughness_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    coat_affect_roughness_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                coat_affect_roughness_image_alpha_mode
+            ).mono :
+            coat_affect_roughness,
+
+        coat_normal: tex::texture_isvalid(coat_normal_image) ?
+            ::OmniSurface::OmniImage::normal_mapping(
+                ::OmniSurface::OmniImage::tangent_space_normal_lookup_2(
+                    coat_normal_image,
+                    uvw_ignore_missing_textures,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    uvw_s_flip,
+                    uvw_t_flip,
+                    coat_normal_strength,
+                    coat_normal_image_flip_r_channel,
+                    coat_normal_image_flip_g_channel,
+                    coat_normal_image_flip_b_channel,
+                    texture_coordinate_info
+                ),
+                geometry_tangent_bitangent_mapping,
+                coat_normal
+            ):
+            coat_normal,
+
+        //Emission
+        //
+        emission_weight: tex::texture_isvalid(emission_weight_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    emission_weight_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                emission_weight_image_alpha_mode
+            ).mono :
+            emission_weight,
+
+        emission_mode: emission_mode,
+
+        emission_intensity: tex::texture_isvalid(emission_intensity_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    emission_intensity_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                emission_intensity_image_alpha_mode
+            ).mono :
+            emission_intensity,
+
+        emission_color: tex::texture_isvalid(emission_color_image) ?
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                emission_color_image,
+                uvw_ignore_missing_textures,
+                uvw_missing_texture_color,
+                uvw_use_uv_coords,
+                uvw_uv_coords,
+                uvw_s_wrap,
+                uvw_t_wrap,
+                texture_coordinate_info
+            ).tint :
+        emission_color,
+
+        emission_use_temperature: emission_use_temperature,
+
+        emission_temperature: tex::texture_isvalid(emission_temperature_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                ::OmniSurface::OmniImage::texture_lookup_2(
+                    emission_temperature_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                emission_temperature_image_alpha_mode
+            ).mono :
+            emission_temperature,
+
+        //Geometry
+        //
+        enable_opacity: enable_opacity,
+        
+        geometry_opacity: tex::texture_isvalid(geometry_opacity_image) ?
+            ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+            ::OmniSurface::OmniImage::texture_lookup_2(
+                    geometry_opacity_image,
+                    uvw_ignore_missing_textures,
+                    uvw_missing_texture_color,
+                    uvw_use_uv_coords,
+                    uvw_uv_coords,
+                    uvw_s_wrap,
+                    uvw_t_wrap,
+                    texture_coordinate_info
+                ),
+                geometry_opacity_image_alpha_mode
+            ).mono :
+            geometry_opacity,
+
+        geometry_opacity_threshold: geometry_opacity_threshold,
+
+        geometry_normal_roughness_strength: geometry_normal_roughness_strength,
+        
+        geometry_normal_roughness: geometry_normal_roughness_data.roughness,
+        
+        geometry_normal: ::OmniSurface::OmniImage::normal_mapping(
+            geometry_normal_roughness_data.normal,
+            geometry_tangent_bitangent_mapping,
+            geometry_normal),
+
+        geometry_displacement: tex::texture_isvalid(geometry_displacement_image) ?
+            ::OmniSurface::OmniShared::displacement_adjustment(
+                (geometry_displacement_mode == ::OmniSurface::OmniShared::displacement_height) ?
+                    float3(::OmniSurface::OmniImage::texture_adjustment_2(
+                        OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                            ::OmniSurface::OmniImage::texture_lookup_2(
+                                geometry_displacement_image,
+                                uvw_ignore_missing_textures,
+                                uvw_missing_texture_color,
+                                uvw_use_uv_coords,
+                                uvw_uv_coords,
+                                uvw_s_wrap,
+                                uvw_t_wrap,
+                                texture_coordinate_info
+                            ),
+                            geometry_displacement_image_alpha_mode
+                        ),
+                        0.0f,       //exposure
+                        color(0.5), //default_color
+                        color(1.0), //color_gain
+                        color(0.0), //color_offset
+                        1.0f,       //alpha_gain
+                        -1.0f * geometry_displacement_scalar_zero_value, //alpha_offset
+                        false,      //invert
+                        0.0f        //blend_factor
+                    ).mono) :
+
+                    float3(::OmniSurface::OmniImage::texture_lookup_2(
+                            geometry_displacement_image,
+                            uvw_ignore_missing_textures,
+                            uvw_missing_texture_color,
+                            uvw_use_uv_coords,
+                            uvw_uv_coords,
+                            uvw_s_wrap,
+                            uvw_t_wrap,
+                            texture_coordinate_info
+                        ).tint
+                    ),
+
+                geometry_displacement_mode,
+
+                tex::texture_isvalid(geometry_displacement_scale_image) ?
+                    ::OmniSurface::OmniImage::texture_alpha_channel_remap_2(
+                        ::OmniSurface::OmniImage::texture_lookup_2(
+                            geometry_displacement_scale_image,
+                            uvw_ignore_missing_textures,
+                            uvw_missing_texture_color,
+                            uvw_use_uv_coords,
+                            uvw_uv_coords,
+                            uvw_s_wrap,
+                            uvw_t_wrap,
+                            texture_coordinate_info
+                        ),
+                        geometry_displacement_scale_image_alpha_mode
+                    ).mono :
+                    geometry_displacement_scale
+            ):
+            geometry_displacement
+    );
+    
+} in material(
+    thin_walled: base.thin_walled,
+    ior: base.ior,
+    surface: base.surface,
+    backface: base.backface,
+    volume: base.volume,
+    geometry: base.geometry
+);

saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/SubUSDs/materials/pbr.mdl

@@ -0,0 +1,910 @@
+/******************************************************************************
+ * Copyright 2022 NVIDIA Corporation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of NVIDIA CORPORATION nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+mdl 1.8;
+
+import ::anno::*;
+import ::base::*;
+import ::df::*;
+import ::math::*;
+import ::state::*;
+import ::tex::*;
+import ::scene::*;
+import ::limits::*;
+
+export enum gltf_alpha_mode {
+    opaque,
+    mask,
+    blend
+};
+
+export enum gltf_wrapping_mode {
+    clamp_to_edge = 33071,
+    mirrored_repeat = 33648,
+    repeat = 10497
+};
+
+export struct gltf_texture_lookup_value
+{
+    bool valid = false;
+    float4 value = float4(0.0, 0.0, 0.0, 1.0);
+};
+
+export struct gltf_normal_texture_lookup_value
+{
+    bool valid = false;
+    float3 value = float3(0.0);
+};
+
+float compute_opacity(gltf_alpha_mode mode, float alpha, float cutoff) {
+    switch (mode) {
+        case mask:
+            return alpha < cutoff ? 0.0 : 1.0;
+        case blend:
+            return alpha;
+        case opaque:
+            return 1.0;
+    }
+}
+
+float4 gltf_prepare_tex_float4(gltf_texture_lookup_value sample) {
+    return sample.valid ? sample.value : float4(1.0);
+}
+
+float3 gltf_prepare_tex_float3(gltf_texture_lookup_value sample) {
+    return sample.valid ? float3(sample.value.x, sample.value.y, sample.value.z) : float3(1.0);
+}
+
+float3 gltf_prepare_normal(gltf_normal_texture_lookup_value sample) {
+    return sample.valid ? sample.value : state::normal();
+}
+
+float gltf_prepare_occlusion(gltf_texture_lookup_value sample, float occlusion_strength) {
+    float occulusion = sample.valid ? sample.value.x : 1.0;
+    return math::lerp(1.0, occulusion, occlusion_strength);
+}
+
+color gltf_perpare_emission(gltf_texture_lookup_value sample, color emissive_factor) {
+    return emissive_factor * color(gltf_prepare_tex_float3(sample));
+}
+
+::tex::wrap_mode convert_wrap_mode(gltf_wrapping_mode mode)
+{
+    if (mode == clamp_to_edge)
+        return ::tex::wrap_clamp;
+    if (mode == mirrored_repeat)
+        return ::tex::wrap_mirrored_repeat;
+
+    return ::tex::wrap_repeat;
+}
+
+float2 khr_texture_transform_apply(
+    float2 coord,
+    float2 offset,
+    float rotation,
+    float2 scale
+)
+{
+    // MDL expects the texture coordinate origin at the bottom left (gltf at top left)
+    // Assuming the renderer follows the MDL specification in which case the coordinates
+    // have been flipped either while loading the glTF geometry or while setting up the state.
+
+    // Undo the flipping for the transformation to get into the original glTF texture space.
+    coord = float2(coord.x, 1.0f - coord.y);
+
+    // first scale
+    coord = coord * scale;
+    // then rotate
+    float cos_rotation = ::math::cos(rotation);
+    float sin_rotation = ::math::sin(rotation);
+    coord = float2(cos_rotation * coord.x + sin_rotation * coord.y, cos_rotation * coord.y - sin_rotation * coord.x);
+    // then translate
+    coord = coord + offset;
+
+    // flip back
+    coord = float2(coord.x, 1.0f - coord.y);
+    return coord;
+}
+
+export gltf_texture_lookup_value gltf_texture_lookup(
+    uniform texture_2d texture = texture_2d()
+    [[
+        anno::in_group("Source"),
+        anno::display_name("Texture"),
+        anno::description("Texture File")
+    ]],
+    uniform int tex_coord_index = 0 
+    [[ 
+        anno::in_group("Source"),
+        anno::display_name("Coordinate Set"),
+        anno::description("Texture coordinate set (UV-Set). KHR_texture_transform overrides the textureInfo texCoord value if supplied."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+
+    uniform float2 offset = float2(0.0f, 0.0)
+    [[
+        anno::in_group("Texture Transform"),
+        anno::display_name("Offset"),
+        anno::description("The offset of the UV coordinate origin as a factor of the texture dimensions."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+    uniform float rotation = 0.0
+    [[
+        anno::hard_range(0.0, 2.0 * ::math::PI),
+        anno::in_group("Texture Transform"),
+        anno::display_name("Rotation"),
+        anno::description("Rotate the UVs by this many radians counter-clockwise around the origin. This is equivalent to a similar rotation of the image clockwise."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+    uniform float2 scale = float2(1.0f, 1.0f)
+    [[
+        anno::in_group("Texture Transform"),
+        anno::display_name("Scale"),
+        anno::description("The scale factor applied to the components of the UV coordinates."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+
+    uniform gltf_wrapping_mode wrap_s = repeat
+    [[ 
+        anno::in_group("Sampler"),
+        anno::display_name("Wrap S"),
+        anno::description("S (U) wrapping mode."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+    uniform gltf_wrapping_mode wrap_t = repeat
+    [[
+        anno::in_group("Sampler"),
+        anno::display_name("Wrap T"),
+        anno::description("T (V) wrapping mode."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]]
+)
+[[
+    anno::author("NVIDIA Corporation"),
+    anno::display_name("GLTF Texture Lookup"),
+    anno::description("Function to read a color or color with alpha channel texture.")
+]]
+{
+    gltf_texture_lookup_value tex_ret;
+    if (!tex::texture_isvalid(texture))
+        return tex_ret;
+
+    float3 tex_coord3 = state::texture_coordinate(tex_coord_index);
+    float2 tex_coord = khr_texture_transform_apply(
+        coord: float2(tex_coord3.x, tex_coord3.y),
+        offset: offset,
+        rotation: rotation,
+        scale: scale);
+    
+    tex_ret.value = tex::lookup_float4(
+        tex: texture,
+        coord: tex_coord,
+        wrap_u: convert_wrap_mode(wrap_s),
+        wrap_v: convert_wrap_mode(wrap_t));
+    tex_ret.valid = true;
+    return tex_ret;
+}
+
+export gltf_normal_texture_lookup_value gltf_normal_texture_lookup(
+    uniform texture_2d texture = texture_2d()
+    [[
+        anno::in_group("Source"),
+        anno::display_name("Texture"),
+        anno::description("Texture File")
+    ]],
+    uniform float normal_scale_factor = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Source"),
+        anno::display_name("Normal Scale Factor"),
+        anno::description("Strength of the base layer normal mapping."),
+        anno::enable_if("::tex::texture_isvalid(texture)")
+    ]],
+    uniform int tex_coord_index = 0 
+    [[
+        anno::in_group("Source"),
+        anno::display_name("Coordinate Set"),
+        anno::description("Texture coordinate set (UV-Set). KHR_texture_transform overrides the textureInfo texCoord value if supplied."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+    uniform int tex_tangent_index = 0 
+    [[
+        anno::hidden(),
+        anno::in_group("Source"),
+        anno::display_name("Coordinate Set"),
+        anno::description("Tangent to be to construct the tangent frame."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+
+    uniform float2 offset = float2(0.0f, 0.0)
+    [[
+        anno::in_group("Texture Transform"),
+        anno::display_name("Offset"),
+        anno::description("The offset of the UV coordinate origin as a factor of the texture dimensions."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+    uniform float rotation = 0.0
+    [[
+        anno::hard_range(0.0, 2.0 * ::math::PI),
+        anno::in_group("Texture Transform"),
+        anno::display_name("Rotation"),
+        anno::description("Rotate the UVs by this many radians counter-clockwise around the origin. This is equivalent to a similar rotation of the image clockwise."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+    uniform float2 scale = float2(1.0f, 1.0f)
+    [[
+        anno::in_group("Texture Transform"),
+        anno::display_name("Scale"),
+        anno::description("The scale factor applied to the components of the UV coordinates."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+
+    uniform gltf_wrapping_mode wrap_s = repeat
+    [[
+        anno::in_group("Sampler"),
+        anno::display_name("Wrap S"),
+        anno::description("S (U) wrapping mode."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]],
+    uniform gltf_wrapping_mode wrap_t = repeat
+    [[
+        anno::in_group("Sampler"),
+        anno::display_name("Wrap T"),
+        anno::description("T (V) wrapping mode."),
+        anno::enable_if("::tex::texture_isvalid(texture) && normal_scale_factor>0.0")
+    ]]
+)
+[[
+    anno::author("NVIDIA Corporation"),
+    anno::display_name("GLTF Normal Texture Lookup"),
+    anno::description("Function to read a normal texture.")
+]]
+{
+    gltf_normal_texture_lookup_value tex_ret;
+    if (!::tex::texture_isvalid(texture))
+        return tex_ret;
+
+    float3 tex_coord3 = state::texture_coordinate(tex_coord_index);
+    float2 tex_coord = khr_texture_transform_apply(
+        coord: float2(tex_coord3.x, tex_coord3.y),
+        offset: offset,
+        rotation: rotation,
+        scale: scale);
+
+    tex_ret.value = base::tangent_space_normal_texture(
+        texture: texture,
+        factor: normal_scale_factor,
+        uvw: base::texture_coordinate_info(
+            position: float3(tex_coord.x, tex_coord.y, tex_coord3.z),
+            tangent_u: state::texture_tangent_u(tex_tangent_index),
+            tangent_v: state::texture_tangent_v(tex_tangent_index)),
+        wrap_u: convert_wrap_mode(wrap_s),
+        wrap_v: convert_wrap_mode(wrap_t));
+    tex_ret.valid = true;
+    return tex_ret;
+}
+
+export material gltf_material(
+    // base color
+    uniform color base_color_factor = color(1.0)
+    [[
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("Base Color Factor"),
+        anno::description("The base color of the material. Multiplied to the 'Base Color Texture' if available.")
+    ]],
+
+    gltf_texture_lookup_value base_color_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("Base Color Texture"),
+        anno::description("The base color of the material. Influenced by the 'Base Color Factor'.")
+    ]],
+
+    // KHR_materials_specular
+    uniform float specular_factor = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Specular"),
+        anno::display_name("Specular Factor"),
+        anno::description("The strength of the specular reflection. Multiplied to the 'Specular Texture' if available.")
+    ]],
+    gltf_texture_lookup_value specular_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Specular"),
+        anno::display_name("Specular Texture"),
+        anno::description("A texture that defines the strength of the specular reflection, stored in the alpha (A) channel. This will be multiplied by the 'Specular Factor'.")
+    ]],
+    uniform color specular_color_factor = color(1.0)
+    [[
+        anno::in_group("Specular"),
+        anno::display_name("Specular Color Factor"),
+        anno::description("The F0 color of the specular reflection (linear RGB). Multiplied to the 'Specular Color Texture' if available.")
+    ]],
+    gltf_texture_lookup_value specular_color_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Specular"),
+        anno::display_name("Specular Color Texture"),
+        anno::description("A texture that defines the F0 color of the specular reflection, stored in the RGB channels and encoded in sRGB. This texture will be multiplied by 'Specular Color Factor'.")
+    ]],
+
+    // metallic roughness
+    uniform float metallic_factor = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("Metallic Factor"),
+        anno::description("The metalness of the material. Select between dielectric (0.0) and metallic (1.0). Multiplied to the 'Metal/Rough Texture' value if available.")
+    ]],
+
+    uniform float roughness_factor = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("Roughness Factor"),
+        anno::description("The roughness of the material. Select between very glossy (0.0) and dull (1.0). Multiplied to the 'Metal/Rough Texture' value if available.")
+    ]],
+    gltf_texture_lookup_value metallic_roughness_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("Metal/Rough Texture"),
+        anno::description("Metallic in the red or blue component and roughness in the green component. Influenced by the 'Metallic Factor' and 'Roughness Factor'."),
+        anno::enable_if("metallic_factor>0.0 || roughness_factor>0.0")
+    ]],
+
+    // KHR_materials_ior
+    uniform float ior = 1.5
+    [[
+        anno::hard_range(1.00, 5.0),
+        anno::in_group("Metallic Roughness"),
+        anno::display_name("IOR"),
+        anno::description("The index of refraction.")
+    ]],
+
+    // normal map
+    gltf_normal_texture_lookup_value normal_texture = gltf_normal_texture_lookup()
+    [[
+        anno::in_group("Normal Mapping"),
+        anno::display_name("Normal Texture"),
+        anno::description("Base layer normal map.")
+    ]],
+
+    // KHR_materials_transmission
+    uniform float transmission_factor = 0.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Transmission"),
+        anno::display_name("Transmission Factor"),
+        anno::description("The base percentage of light that is transmitted through the surface. Multiplied to the 'Transmission Texture' if available.")
+    ]],
+    gltf_texture_lookup_value transmission_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Transmission"),
+        anno::display_name("Transmission Texture"),
+        anno::description("A texture that defines the transmission percentage of the surface, stored in the R channel. Influenced by the 'Transmission Factor'."),
+        anno::enable_if("transmission_factor>0")
+    ]],
+
+    // KHR_materials_sheen
+    uniform color sheen_color_factor = color(0.0)
+    [[
+        anno::in_group("Sheen"),
+        anno::display_name("Sheen Color Factor"),
+        anno::description("The sheen color in linear space. Multiplied to the 'Sheen Color Texture' if available.")
+    ]],
+    gltf_texture_lookup_value sheen_color_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Sheen"),
+        anno::display_name("Sheen Color Texture"),
+        anno::description("The sheen color (RGB). The sheen color is in sRGB transfer function. Influenced by the 'Sheen Color Factor'.")
+    ]],
+    uniform float sheen_roughness_factor = 0.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Sheen"),
+        anno::display_name("Sheen Roughness Factor"),
+        anno::description("The sheen roughness. Multiplied to the 'Sheen Roughness Texture' if available.")
+    ]],
+    gltf_texture_lookup_value sheen_roughness_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Sheen"),
+        anno::display_name("Sheen Roughness Texture"),
+        anno::description("The sheen roughness (Alpha) texture. Influenced by the 'Sheen Roughness Factor'.")
+    ]],
+
+    // KHR_materials_clearcoat
+    uniform float clearcoat_factor = 0.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Clearcoat"),
+        anno::display_name("Clearcoat Factor"),
+        anno::description("Strength of the clearcoat. Multiplied to the 'Clearcoat Texture' if available.")
+    ]],
+    gltf_texture_lookup_value clearcoat_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Clearcoat"),
+        anno::display_name("Clearcoat Texture"),
+        anno::description("Strength of the clearcoat. Influenced by the 'Clearcoat Factor'."),
+        anno::enable_if("clearcoat_factor>0")
+    ]],
+    uniform float clearcoat_roughness_factor = 0.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Clearcoat"),
+        anno::display_name("Clearcoat Roughness Factor"),
+        anno::description("The clearcoat layer roughness. Multiplied to the 'Clearcoat Roughness Texture' if available."),
+        anno::enable_if("clearcoat_factor>0.0")
+    ]],
+    gltf_texture_lookup_value clearcoat_roughness_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Clearcoat"),
+        anno::display_name("Clearcoat Roughness Texture"),
+        anno::description("The clearcoat layer roughness texture. Influenced by the 'Clearcoat Roughness Texture'."),
+        anno::enable_if("clearcoat_factor>0.0 && clearcoat_roughness_factor>0.0")
+    ]],
+    gltf_normal_texture_lookup_value clearcoat_normal_texture = gltf_normal_texture_lookup()
+    [[
+        anno::in_group("Clearcoat"),
+        anno::display_name("Clearcoat Normal"),
+        anno::description("The clearcoat normal map texture."),
+        anno::enable_if("clearcoat_factor>0.0")
+    ]],
+
+    // emission
+    uniform color emissive_factor = color(0.0)
+    [[
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Factor"),
+        anno::description("The emissive color of the material. Multiplied to the 'Emissive Texture' if available.")
+    ]],
+    gltf_texture_lookup_value emissive_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Texture"),
+        anno::description("The emissive map texture. Influenced by the 'Emissive Factor'."),
+        anno::enable_if("::math::average(emissive_factor)>0.0")
+    ]],
+    // KHR_materials_emissive_strength
+    uniform float emissive_strength = 1.0
+    [[
+        anno::soft_range(0.0, 1000),
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Strength"),
+        anno::description("The maximum strength of the emissive texture. Multiplied to the 'Emissive Factor'."),
+        anno::enable_if("::math::average(emissive_factor)>0.0")
+    ]],
+
+    // KHR_materials_volume
+    uniform bool thin_walled = true
+    [[
+        anno::in_group("Volume"),
+        anno::display_name("Thin-walled"),
+        anno::description("If true the material is thin-walled. Otherwise the material is a volume boundary. The doubleSided property has no effect on volume boundaries. Note, the thickness parameters are ignored since ray-tracing is used to compute the travelled distance within the volume.")
+    ]],
+    uniform float attenuation_distance = 0.0
+    [[
+        anno::soft_range(0.0, ::limits::FLOAT_MAX),
+        anno::in_group("Volume"),
+        anno::display_name("Attenuation Distance"),
+        anno::description("Density of the medium given as the average distance that light travels in the medium before interacting with a particle. The value is given in world space. A value 0.0 disables it")
+    ]],
+    uniform color attenuation_color = color(1.0)
+    [[
+        anno::in_group("Volume"),
+        anno::display_name("Attenuation Color"),
+        anno::description("The color that white light turns into due to absorption when reaching the attenuation distance.")
+    ]],
+
+    // ambient occlusion
+    gltf_texture_lookup_value occlusion_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Occlusion"),
+        anno::display_name("Occlusion Texture"),
+        anno::description("The occlusion map texture. Influenced by the 'Occlusion Strength'.")
+    ]],
+    uniform float occlusion_strength = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Occlusion"),
+        anno::display_name("Occlusion Strength"),
+        anno::description("A scalar multiplier controlling the amount of occlusion applied. Multiplied to the 'Occlusion Texture'.")
+    ]],
+
+    // alpha
+    uniform gltf_alpha_mode alpha_mode = opaque
+    [[
+        anno::in_group("Opacity"),
+        anno::display_name("Alpha Mode"),
+        anno::description("Select how to interpret the alpha value.")
+    ]],
+    uniform float base_alpha = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Opacity"),
+        anno::display_name("Base Alpha"),
+        anno::description("Select between transparent (0.0) and opaque (1.0). Multiplied to the base color texture alpha channel if available."),
+        anno::enable_if("alpha_mode!=opaque")
+    ]],
+    // alpha for gltf_alpha_mode::mask
+    uniform float alpha_cutoff  = 0.5
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Opacity"),
+        anno::display_name("Alpha Cutoff"),
+        anno::description("Threshold to decide between fully transparent and fully opaque when alpha mode is 'mask'."),
+        anno::enable_if("alpha_mode==mask")
+    ]],
+
+    uniform string vertex_color_name = string("displayColor")
+    [[
+        anno::in_group("Primvar"),
+        anno::display_name("Vertex Color Name"),
+        anno::description("Name of the vertex color primvar usually COLOR_0(gltf), or displayColor(usd)")
+    ]],
+
+    uniform bool use_vertex_color_alpha = false 
+    [[ 
+        anno::in_group("Primvar"),
+        anno::display_name("Use Opacity Channel From Vertex Color"),
+        anno::description("Multipy the Alpha or .w channel from the vertex color with the base alpha value.")
+    ]],
+
+    uniform string vertex_opacity_name = string("displayOpacity")
+    [[
+        anno::in_group("Primvar"),
+        anno::display_name("Vertex Opacity Name"),
+        anno::description("Name of the vertex opacity primvar usually the fourth component of COLOR_0(gltf), or displayOpacity(usd)")
+    ]]
+
+) [[
+    anno::author("NVIDIA Corporation"),
+    anno::display_name("GLTF Material - Metallic-Roughness"),
+    anno::description("Metallic-Roughness Material that takes the GLTF PBR model and KHR extension parameters as input.")
+]] = let {
+
+    // handling GLTF parameters
+    // ------------------------------------------------------------------------
+    
+    float4 base_float4 = gltf_prepare_tex_float4(base_color_texture) * ::scene::data_lookup_float4(vertex_color_name, float4(1.0)); // apply vertex color
+    color base_color = base_color_factor * color(base_float4.x, base_float4.y, base_float4.z);
+    
+    float alpha = base_alpha * (use_vertex_color_alpha == 1 ? base_float4.w : 1.0) * ((vertex_color_name != vertex_opacity_name) ? ::scene::data_lookup_float(vertex_opacity_name, float(1.0)) : 1.0);
+    
+    float3 metallic_roughness = gltf_prepare_tex_float3(metallic_roughness_texture);
+    float metallic = metallic_factor * metallic_roughness.z;
+    float roughness = roughness_factor * metallic_roughness.y;
+
+    float3 normal = gltf_prepare_normal(normal_texture);
+    float occlusion = gltf_prepare_occlusion(occlusion_texture, occlusion_strength);
+    color emissive_color = gltf_perpare_emission(emissive_texture, emissive_factor * math::max(0.0f, emissive_strength));
+
+    // KHR_materials_specular
+    // ------------------------------------------------------------------------
+    color specular_color = color(gltf_prepare_tex_float3(specular_color_texture)) * specular_color_factor;
+    float specular = gltf_prepare_tex_float4(specular_texture).w * specular_factor;
+
+    // KHR_materials_transmission
+    // ------------------------------------------------------------------------
+    float transmission = gltf_prepare_tex_float4(transmission_texture).x * transmission_factor;
+
+    // KHR_materials_sheen
+    // ------------------------------------------------------------------------
+    color sheen_color = color(gltf_prepare_tex_float3(sheen_color_texture)) * sheen_color_factor;
+    float sheen_roughness = gltf_prepare_tex_float4(sheen_roughness_texture).w * sheen_roughness_factor;
+
+    // KHR_materials_clearcoat
+    // ------------------------------------------------------------------------
+    float clearcoat_blend = gltf_prepare_tex_float3(clearcoat_texture).x * clearcoat_factor;
+    float clearcoat_roughness = gltf_prepare_tex_float3(clearcoat_roughness_texture).y * clearcoat_roughness_factor;
+    float clearcoat_roughness2 = clearcoat_roughness * clearcoat_roughness;
+    float3 clearcoat_normal = gltf_prepare_normal(clearcoat_normal_texture);
+    float grazing_refl_coat = math::max((1.0 - clearcoat_roughness), 0.0);
+
+    // metallic roughness model
+    // ------------------------------------------------------------------------
+
+    // compute final roughness by squaring the "roughness" parameter 
+    float roughness2 = roughness * roughness;
+
+    // reduce the reflectivity at grazing angles to avoid "dark edges" 
+    // for high roughness due to the layering
+    float grazing_refl = math::max((1.0 - roughness), 0.0);
+
+    // fresnel term based on ior
+    float f0 = math::pow((ior - 1.0)/(ior + 1.0), 2.0);
+
+    // for the dielectric component we layer the glossy component on top of the diffuse one,
+    // the glossy layer has no color tint
+    bsdf dielectric_component = df::color_custom_curve_layer(
+        weight: color(1.0), // roughness is used to weight between diffuse and glossy
+        normal_reflectivity: math::min(f0 * specular_color, color(1.0)) * specular,
+        grazing_reflectivity: color(grazing_refl * specular),
+        layer: df::microfacet_ggx_vcavities_bsdf(roughness_u: roughness2),
+        base: df::weighted_layer(
+            weight: transmission,
+            base: df::diffuse_reflection_bsdf(tint: base_color * occlusion),
+            layer: df::microfacet_ggx_vcavities_bsdf(
+                roughness_u: roughness2,
+                tint: base_color * occlusion,
+                mode: df::scatter_transmit)),
+        normal: normal
+        );
+
+    // the metallic component doesn't have a diffuse component, 
+    // its only glossy base_color is applied to tint it
+    bsdf metallic_component = df::microfacet_ggx_vcavities_bsdf(
+        tint: base_color * occlusion, 
+        roughness_u: roughness2);
+
+    // apply sheen to the dielectic component
+    // add the sheen_color as weight in an outer layer to be able to blend and disable on default 
+    // otherwise, sheen would be applied and tinted black
+    bsdf dielectric_sheen_component = df::color_weighted_layer(
+        weight: sheen_color, 
+        layer: df::sheen_bsdf(
+            roughness: sheen_roughness * sheen_roughness,
+            tint:  color(1.0),
+            multiscatter_tint: color(1.0),
+            multiscatter: dielectric_component
+        ),
+        base: dielectric_component);
+
+    // final BSDF is a linear blend between dielectric and metallic component
+    bsdf dielectric_metal_mix = df::weighted_layer(
+        weight: metallic,
+        base: dielectric_sheen_component,
+        layer: metallic_component,
+        normal: normal);
+
+    bsdf clearcoated = df::custom_curve_layer(
+        weight: clearcoat_blend,
+        normal_reflectivity: 0.04,
+        grazing_reflectivity: grazing_refl_coat,
+        layer: df::microfacet_ggx_vcavities_bsdf(
+            mode: df::scatter_reflect,
+            roughness_u: clearcoat_roughness2,
+            tint: color(1.0)),
+        base: df::weighted_layer(
+            weight: 1.0,
+            layer: dielectric_metal_mix,
+            normal: normal),
+        normal: clearcoat_normal);
+
+} in material(
+    thin_walled: thin_walled,
+    surface: material_surface(
+        scattering: clearcoated,
+        emission:  material_emission (
+            emission: df::diffuse_edf(),
+            intensity: emissive_color * ::math::PI
+        )
+    ),
+    volume: material_volume(
+        absorption_coefficient: thin_walled ? color(0.0) : (attenuation_distance == 0) ? color(0.0) : -math::log(attenuation_color) / attenuation_distance
+    ),
+    ior: color(ior),
+    geometry: material_geometry(
+        cutout_opacity: compute_opacity(alpha_mode, alpha, alpha_cutoff) 
+    )
+);
+
+
+export material gltf_material_khr_specular_glossiness(
+    // diffuse color
+    uniform color diffuse_factor = color(1.0)
+    [[
+        anno::in_group("PBR Specular Glossiness"),
+        anno::display_name("Diffuse Factor"),
+        anno::description("The diffuse color of the material. Multiplied to the 'Diffuse Texture' if available.")
+    ]],
+    gltf_texture_lookup_value diffuse_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("PBR Specular Glossiness"),
+        anno::display_name("Diffuse Texture"),
+        anno::description("The diffuse color of the material. Influenced by the 'Diffuse Factor'.")
+    ]],
+
+    // specular glossiness
+    uniform color specular_factor = 1.0
+    [[
+        anno::in_group("PBR Specular Glossiness"),
+        anno::display_name("Specular Factor"),
+        anno::description("The specular color of the material. Multiplied to the rgb values of the 'Specular/Glossy Texture' if available.")
+    ]],
+    uniform float glossiness_factor = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("PBR Specular Glossiness"),
+        anno::display_name("Glossiness Factor"),
+        anno::description("The glossiness of the material. Select between diffuse (0.0) and nearly specular (1.0). Multiplied to the alpha value of the 'Specular/Glossy Texture' if available.")
+    ]],
+    gltf_texture_lookup_value specular_glossiness_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("PBR Specular Glossiness"),
+        anno::display_name("Specular/Glossy Texture"),
+        anno::description("The specular-glossiness texture. Influenced by the 'Specular Factor' and 'Glossiness Factor'.")
+    ]],
+
+    // normal map
+    gltf_normal_texture_lookup_value normal_texture = gltf_normal_texture_lookup()
+    [[
+        anno::in_group("Normal Mapping"),
+        anno::display_name("Normal Texture"),
+        anno::description("Base layer normal map.")
+    ]],
+    
+    // emission
+    uniform color emissive_factor = color(0.0)
+    [[
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Factor"),
+        anno::description("The emissive color of the material. Multiplied to the 'Emissive Texture' if available.")
+    ]],
+    gltf_texture_lookup_value emissive_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Texture"),
+        anno::description("The emissive map texture. Influenced by the 'Emissive Factor'."),
+        anno::enable_if("::math::average(emissive_factor)>0.0")
+    ]],
+    // KHR_materials_emissive_strength
+    uniform float emissive_strength = 1.0
+    [[
+        anno::soft_range(0.0, 10000),
+        anno::in_group("Emission"),
+        anno::display_name("Emissive Strength"),
+        anno::description("The maximum strength of the emissive texture. Multiplied to the 'Emissive Factor'."),
+        anno::enable_if("::math::average(emissive_factor)>0.0")
+    ]],
+
+    // ambient occlusion
+    gltf_texture_lookup_value occlusion_texture = gltf_texture_lookup()
+    [[
+        anno::in_group("Occlusion"),
+        anno::display_name("Occlusion Texture"),
+        anno::description("The occlusion map texture. Influenced by the 'Occlusion Strength'.")
+    ]],
+    uniform float occlusion_strength = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Occlusion"),
+        anno::display_name("Occlusion Strength"),
+        anno::description("A scalar multiplier controlling the amount of occlusion applied. Multiplied to the 'Occlusion Texture'.")
+    ]],
+
+    // alpha
+    uniform gltf_alpha_mode alpha_mode = opaque
+    [[
+        anno::in_group("Opacity"),
+        anno::display_name("Alpha Mode"),
+        anno::description("Select how to interpret the alpha value.")
+    ]],
+    uniform float base_alpha = 1.0
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Opacity"),
+        anno::display_name("Base Alpha"),
+        anno::description("Select between transparent (0.0) and opaque (1.0). Multiplied to the base color texture alpha channel if available."),
+        anno::enable_if("alpha_mode!=opaque")
+    ]],
+    // alpha for gltf_alpha_mode::mask
+    
+    uniform float alpha_cutoff = 0.5
+    [[
+        anno::hard_range(0.0, 1.0),
+        anno::in_group("Opacity"),
+        anno::display_name("Alpha Cutoff"),
+        anno::description("Threshold to decide between fully transparent and fully opaque when alpha mode is 'mask'."),
+        anno::enable_if("alpha_mode==mask")
+    ]],
+
+    uniform string vertex_color_name_spec = string("displayColor")
+    [[
+        anno::in_group("Primvar"),
+        anno::display_name("Vertex Color Name"),
+        anno::description("Name of the vertex color primvar usually COLOR_0 'gltf', or displayColor 'usd'.")
+    ]],
+
+    uniform bool use_vertex_color_alpha_spec = false 
+    [[ 
+        anno::in_group("Primvar"),
+        anno::display_name("Use Opacity Channel From Vertex Color"),
+        anno::description("Multipy the Alpha or .w channel from the vertex color with the base alpha value.")
+    ]],
+
+    uniform string vertex_opacity_name_spec = string("displayOpacity")
+    [[
+        anno::in_group("Primvar"),
+        anno::display_name("Vertex Opacity Name"),
+        anno::description("Name of the vertex color primvar usually the .w component of COLOR_0 'gltf', or displayOpacity 'usd'.")
+    ]]
+
+) [[
+    anno::author("NVIDIA Corporation"),
+    anno::display_name("GLTF Material - Specular-Glossiness"),
+    anno::description("Specular-Glossiness Material that takes the GLTF KHR extension parameters as input.")
+]] = let {
+
+    // handling GLTF parameters
+    // ------------------------------------------------------------------------
+    float4 diffuse_float4 = gltf_prepare_tex_float4(diffuse_texture) * ::scene::data_lookup_float4(vertex_color_name_spec, float4(1.0)); // apply vertex color
+    color diffuse = diffuse_factor * color(diffuse_float4.x, diffuse_float4.y, diffuse_float4.z);
+
+    float alpha = base_alpha * (use_vertex_color_alpha_spec == 1 ? diffuse_float4.w : 1.0)  * ((vertex_color_name_spec != vertex_opacity_name_spec) ? ::scene::data_lookup_float(vertex_opacity_name_spec, float(1.0)) : 1.0);
+    //float alpha = base_alpha;
+    float4 specular_glossiness = gltf_prepare_tex_float4(specular_glossiness_texture);
+    color specular = specular_factor * color(specular_glossiness.x, specular_glossiness.y, specular_glossiness.z);
+    float glossiness = glossiness_factor * specular_glossiness.w;
+
+    float3 normal = gltf_prepare_normal(normal_texture);
+    float occlusion = gltf_prepare_occlusion(occlusion_texture, occlusion_strength);
+    color emissive_color = gltf_perpare_emission(emissive_texture, emissive_factor * math::max(0.0f, emissive_strength));
+
+    // specular glossiness model
+    // ------------------------------------------------------------------------
+
+    //color c_diff = diffuse * (1.0 - math::maxvalue(specular));
+    float F_0 = math::max_value(specular);
+    color F_0_tint = F_0==0.0? color(0.0) : (specular/F_0); 
+
+    float a = (1.0 - glossiness) * (1.0 - glossiness);
+
+	// diffuse BRDF
+	bsdf diffuse_brdf = df::diffuse_reflection_bsdf(
+        tint: diffuse * occlusion, 
+        roughness: 0.0);
+
+	// specular BRDF
+	bsdf specular_brdf = df::microfacet_ggx_smith_bsdf(
+        tint: color(occlusion),
+	    roughness_u: a, 
+        roughness_v: a, 
+        tangent_u: state::texture_tangent_u(0));
+	bsdf tinted_specular =  df::directional_factor(normal_tint: F_0_tint, grazing_tint: color(1.0), exponent: 5.0, base: specular_brdf);
+	//- Custom curve for specular/diffuse angular mix
+	bsdf diffuse_specular_mix = df::custom_curve_layer(
+        normal_reflectivity: F_0, 
+        grazing_reflectivity: 1.0, 
+        exponent: 5.0, 
+		weight: 1.0, 
+        layer: tinted_specular, 
+        base: diffuse_brdf, 
+        normal: normal);
+
+} in material(
+    surface: material_surface(
+        scattering: diffuse_specular_mix,
+        emission:  material_emission (
+            emission: df::diffuse_edf(),
+            intensity: emissive_color * ::math::PI
+        )
+    ),
+    geometry: material_geometry(
+        normal: normal,
+        cutout_opacity: compute_opacity(alpha_mode, alpha, alpha_cutoff) 
+    )
+);

saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/SubUSDs/textures/color_204204204.hdr

@@ -0,0 +1,5 @@
+#?RADIANCE
+FORMAT=32-bit_rle_rgbe
+
+-Y 4 +X 4
+��̀��̀��̀��̀��̀��̀��̀��̀��̀��̀��̀��̀��̀��̀��̀��̀

saved/assets/scene_usds/scientific_experiments/task_01_pour_flask_to_cylinder/public_validation/scene.usda

@@ -0,0 +1,80 @@
+#usda 1.0
+(
+    customLayerData = {
+        dictionary omni_layer = {
+            dictionary locked = {
+            }
+            dictionary muteness = {
+            }
+        }
+        dictionary renderSettings = {
+            float3 "rtx:debugView:pixelDebug:textColor" = (0, 1e18, 0)
+            float3 "rtx:fog:fogColor" = (0.75, 0.75, 0.75)
+            float3 "rtx:index:backgroundColor" = (0, 0, 0)
+            float3 "rtx:index:regionOfInterestMax" = (0, 0, 0)
+            float3 "rtx:index:regionOfInterestMin" = (0, 0, 0)
+            float3 "rtx:post:backgroundZeroAlpha:backgroundDefaultColor" = (0, 0, 0)
+            float3 "rtx:post:colorcorr:contrast" = (1, 1, 1)
+            float3 "rtx:post:colorcorr:gain" = (1, 1, 1)
+            float3 "rtx:post:colorcorr:gamma" = (1, 1, 1)
+            float3 "rtx:post:colorcorr:offset" = (0, 0, 0)
+            float3 "rtx:post:colorcorr:saturation" = (1, 1, 1)
+            float3 "rtx:post:colorgrad:blackpoint" = (0, 0, 0)
+            float3 "rtx:post:colorgrad:contrast" = (1, 1, 1)
+            float3 "rtx:post:colorgrad:gain" = (1, 1, 1)
+            float3 "rtx:post:colorgrad:gamma" = (1, 1, 1)
+            float3 "rtx:post:colorgrad:lift" = (0, 0, 0)
+            float3 "rtx:post:colorgrad:multiply" = (1, 1, 1)
+            float3 "rtx:post:colorgrad:offset" = (0, 0, 0)
+            float3 "rtx:post:colorgrad:whitepoint" = (1, 1, 1)
+            float3 "rtx:post:lensDistortion:lensFocalLengthArray" = (10, 30, 50)
+            float3 "rtx:post:lensFlares:anisoFlareFalloffX" = (450, 475, 500)
+            float3 "rtx:post:lensFlares:anisoFlareFalloffY" = (10, 10, 10)
+            float3 "rtx:post:lensFlares:cutoffPoint" = (2, 2, 2)
+            float3 "rtx:post:lensFlares:haloFlareFalloff" = (10, 10, 10)
+            float3 "rtx:post:lensFlares:haloFlareRadius" = (75, 75, 75)
+            float3 "rtx:post:lensFlares:isotropicFlareFalloff" = (50, 50, 50)
+            float3 "rtx:post:tonemap:whitepoint" = (1, 1, 1)
+            float3 "rtx:raytracing:indexdirect:svoBrickSize" = (32, 32, 32)
+            float3 "rtx:raytracing:inscattering:singleScatteringAlbedo" = (0.9, 0.9, 0.9)
+            float3 "rtx:raytracing:inscattering:transmittanceColor" = (0.5, 0.5, 0.5)
+            float3 "rtx:sceneDb:ambientLightColor" = (0.1, 0.1, 0.1)
+            int "rtx:translucency:maxRefractionBounces" = 16
+            double "rtx:translucency:worldEps" = 0.005
+        }
+    }
+    defaultPrim = "World"
+    endTimeCode = 1000000
+    metersPerUnit = 1
+    startTimeCode = 0
+    timeCodesPerSecond = 60
+    upAxis = "Z"
+)
+
+over "Render" (
+    hide_in_stage_window = true
+)
+{
+}
+
+def Xform "World"
+{
+    def "_scene" (
+        prepend payload = @scene.usd@
+    )
+    {
+        float3 xformOp:rotateXYZ = (0, 0, 0)
+        float3 xformOp:scale = (1, 1, 1)
+        double3 xformOp:translate = (0, 0, 0)
+        uniform token[] xformOpOrder = ["xformOp:translate", "xformOp:rotateXYZ", "xformOp:scale"]
+    }
+}
+
+def Xform "Environment"
+{
+    double3 xformOp:rotateXYZ = (0, 0, 0)
+    double3 xformOp:scale = (1, 1, 1)
+    double3 xformOp:translate = (0, 0, 0)
+    uniform token[] xformOpOrder = ["xformOp:translate", "xformOp:rotateXYZ", "xformOp:scale"]
+}
+

saved/tasks/scientific_experiments/task_01_pour_flask_to_cylinder/validation_mixed_1/000/meta_info.pkl

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2c1b076bf353abd13022f1f31dd398b77c09f8abae13e369e8852df9857a45f9
+size 21801