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code/third_party/vMaterials_2/Composite/Carbon_Fiber.mdl

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+/******************************************************************************
+ *	 Copyright 2024 NVIDIA Corporation. All rights reserved.	 *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+
+mdl 1.6;
+
+import ::anno::*;
+import ::base::*;
+import ::df::*;
+import ::math::*;
+import ::state::*;
+import ::tex::*;
+import ::nvidia::core_definitions::blend_colors;
+import ::nvidia::core_definitions::dimension;
+
+const string COPYRIGHT = 
+" Copyright 2024 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";
+
+const string DESCRIPTION = "A polished brass material with tweakable surface imperfections.";
+
+
+annotation preview_scale( float f);
+
+// Returns the normal n in tangent space, given n is in internal space.
+float3 transform_internal_to_tangent(float3 n)
+[[ 
+	anno::hidden() 
+]]
+{
+	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)
+[[ 
+	anno::hidden() 
+]]
+{
+	return  state::texture_tangent_u(0) * n.x +
+			state::texture_tangent_v(0) * n.y +
+			state::normal() * n.z ;
+}
+
+
+
+// Returns a normal by adding a detail normal to a global normal.
+// If detail blending of two normal maps gives visual artifacts, check if texture_2d are loaded
+// correctly with tex::gamma_linear
+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));
+}
+
+
+float histogram_range(float input, float range = 1.0f, float position = 0.5f)
+{	
+	float low = ::math::clamp(1.0 - ::math::min(((1.0 - position) + range * 0.5), (1.0 - position) * 2), 0.0, 1.0);
+	float high = ::math::clamp(math::min((position + range * 0.5 ), position * 2.0), 0.0, 1.0);
+	return ::math::lerp(low, high, input);
+}
+
+
+float remap(float input, float low, float high)
+{
+	return ::math::lerp(low, high, input);
+}
+
+::base::texture_coordinate_info vmat_transform_post_scale(
+	::base::texture_coordinate_info uvw,
+	float2 scale = float2(1.0f)
+)
+{
+	return ::base::texture_coordinate_info(
+		position: float3(uvw.position.x / scale.x,
+						uvw.position.y / scale.y,
+						uvw.position.z),
+		tangent_u: uvw.tangent_u,
+		tangent_v: uvw.tangent_v
+	);
+}
+
+::base::anisotropy_return anisotropy_conversion(
+	float roughness = 0.0,
+	float anisotropy = 0.0,
+	float anisotropy_rotation = 0.0,
+	float3 tangent_u = ::state::texture_tangent_u(0)
+)
+{
+	::base::anisotropy_return return_value(
+		roughness_u: roughness * roughness,
+		roughness_v: roughness * roughness,
+		tangent_u: tangent_u
+	);
+
+	if (anisotropy > 0.f) {
+		// Allows for infinite anisotropy when roughness==0, full roughness when anisotropy==0 (saturated later on)
+		return_value.roughness_u += ::math::pow(anisotropy,4);
+
+		if (anisotropy_rotation > 0.f && anisotropy_rotation < 1.f) {
+			float3 tangent_v = ::math::cross(::state::normal(), tangent_u);		 // assumed these are normalized already
+			float rotation_angle = 2.f * ::math::PI * anisotropy_rotation;
+			return_value.tangent_u = tangent_u * ::math::cos(rotation_angle) - tangent_v * ::math::sin(rotation_angle);
+		}
+	}
+
+	return_value.roughness_u = ::math::min(1.f, return_value.roughness_u);
+	return_value.roughness_v = ::math::min(1.f, return_value.roughness_v);
+	
+	return return_value;
+}
+
+
+::base::texture_coordinate_info vmat_transform(
+								uniform float2 translation = float2(0.0, 0.0),
+								uniform float rotation	 = 0.0,
+								uniform float2 scaling	 = float2(1.0, 1.0),
+								uniform ::base::texture_coordinate_system system = ::base::texture_coordinate_uvw,
+								uniform int uv_space	   = 0
+)
+{
+	float4x4 scale =
+	float4x4(1.0 /scaling.x, 0.			 ,  0. ,	 0.,
+			 0.			, 1.0 /scaling.y ,  0. ,	 0.,
+			 0.			, 0.			 ,  1.0,	 0.,
+			 translation.x , translation.y  ,  0.0,	 1.);
+
+	float s = ::math::sin(rotation);
+	float c = ::math::cos(rotation);
+	float4x4 rotate =
+	float4x4(  c  ,  -s   , 0.0 , 0.0,
+			   s  ,   c   , 0.0 , 0.0,
+			   0.0,   0.0 , 1.0 , 0.0,
+			   0. ,   0.0 , 0.0 , 1.);
+	
+	return ::base::transform_coordinate(scale*rotate, ::base::coordinate_source(system, uv_space));
+}
+
+float remap_xy_to_0_1(float input, float x, float y)
+{
+	return (input - x)/(y - x);
+}
+
+float histogram_scan_big(float input, float width, float position)
+{
+	return ::math::clamp(
+				remap_xy_to_0_1(input,
+					::math::lerp(-width, 1.0, position),
+					::math::lerp(0.0, 1.0 + width, position)),
+				0.0,
+				1.0);
+}
+
+float histogram_pos_range(float input, float range, float position)
+{
+	float range_half = range/2.0;
+	float add_high = (position - range_half) < 0.0 ? ::math::abs(position - range_half) : 0.0;
+	float subtract_low = (position + range_half) > 1.0 ? ::math::abs((position + range_half)-1.0) : 0.0;
+	
+	
+	float low = (position - range_half) < 0.0 ? 0.0 : (position - range_half - subtract_low);
+	float high = (position + range_half) > 1.0 ? 1.0 : (position + range_half + add_high);
+	return remap(input, low, high);
+}
+
+export material Carbon_Fiber(
+	float carbon_fiber_brightness = 0.22f [[
+		::anno::description("Adjusts the brightness of the material."),
+		::anno::display_name("Brightness"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(0)
+	]],
+	float fibers_roughness = 0.16f [[
+		::anno::description("Afjusts the roughness of the fibers."),
+		::anno::display_name("Fibers Roughness"),
+		::anno::in_group("Appearance", "Fibers"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(1)
+	]],
+	float fibers_anisotropy = 0.18f [[
+		::anno::description("Adjusts the anisotropy of the fibers. Higher values stretches the reflection of the fibers."),
+		::anno::display_name("Fibers Anisotropy"),
+		::anno::in_group("Appearance", "Fibers"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(2)
+	]],
+	uniform float weaving_bump_strength = 1.f [[
+		::anno::description("Adjusts the bumpiness of the weaving pattern."),
+		::anno::display_name("Weaving Bump Strength"),
+		::anno::in_group("Appearance", "Fibers"),
+		::anno::hard_range(0.f, 2.f),
+		::anno::soft_range(0.f, 1.f),
+		::anno::ui_order(3)
+	]],
+	uniform bool enable_coating = false [[
+		::anno::description("When enables, a a transparent coating is applied on top of the carbon fiber."),
+		::anno::display_name("Enable Coating"),
+		::anno::in_group("Coating"),
+		::anno::ui_order(4)
+	]],
+	float coating_roughness = 0.f [[
+		::anno::description("Adjusts the roughness of the coating. Higher values lead to blurrier reflections."),
+		::anno::display_name("Coating Roughness"),
+		::anno::in_group("Coating"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(5)
+	]],
+	float coating_roughness_variation = 0.36f [[
+		::anno::description("This parameter adds variation to the roughness so that it appears less uniform."),
+		::anno::display_name("Coating Roughness Variation"),
+		::anno::in_group("Coating"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(6)
+	]],
+	uniform float coating_damages_intensity = 0.02f [[
+		::anno::description("Adds scratches and wear on the coating."),
+		::anno::display_name("Coating Damages"),
+		::anno::in_group("Coating"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(7)
+	]],
+	float coating_damages_scale = .75f [[
+		::anno::description("Use this parameter to make the damages bigger or smaller, relative to the overall texture scale."),
+		::anno::display_name("Damages Scale"),
+		::anno::in_group("Coating"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(8)
+	]],
+	float coating_dust = 0.23f [[
+		::anno::description("Adds a thin layer of dust which makes the surface a bit more matte when applied."),
+		::anno::display_name("Coating Dust"),
+		::anno::in_group("Coating"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(9)
+	]],
+	uniform float2 texture_translate = float2(0.f) [[
+		::anno::description("Controls the position of the texture."),
+		::anno::display_name("Texture Translate"),
+		::anno::in_group("Transform"),
+		::anno::ui_order(10)
+	]],
+	uniform float texture_rotate = 0.f [[
+		::anno::description("Rotates angle of the texture in degrees."),
+		::anno::display_name("Texture Rotate"),
+		::anno::in_group("Transform"),
+		::anno::soft_range(0.f, 360.f),
+		::anno::ui_order(11)
+	]],
+	uniform float2 texture_scale = float2(1.f) [[
+		::anno::description("Larger numbers increase the size."),
+		::anno::display_name("Texture Scale"),
+		::anno::in_group("Transform"),
+		::nvidia::core_definitions::dimension(float2(.60f, .60f)),
+		::preview_scale(2.5f),
+		::anno::ui_order(12)
+	]],
+	uniform bool roundcorners_enable = false [[
+		::anno::description("Enables the round corner effect. Comes at a slight performance cost as additional raytracing calls are required to evaluate the round corner effect."),
+		::anno::display_name("Enable Round Corners"),
+		::anno::in_group("Round Corners"),
+		::anno::ui_order(13)
+	]],
+	uniform float roundcorners_radius_mm = 1.5f [[
+		::anno::description("Radius of the rounded corners in millimeters."),
+		::anno::display_name("Round Corner Radius (mm)"),
+		::anno::in_group("Round Corners"),
+		::anno::soft_range(0.f, 10.f),
+		::anno::ui_order(14)
+	]],
+	uniform bool roundcorners_across_materials = false [[
+		::anno::description("Applies the round corner effect across different materials when enabled."),
+		::anno::display_name("Across Materials"),
+		::anno::in_group("Round Corners"),
+		::anno::ui_order(15)
+	]],
+	uniform int uv_space_index = 0 [[
+		::anno::description("Uses selected UV space for material."),
+		::anno::display_name("UV Space Index"),
+		::anno::in_group("Advanced"),
+		::anno::ui_order(16)
+	]])
+[[
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+	::anno::display_name("Carbon Fiber - Shiny Uncoated"),
+	::anno::description(DESCRIPTION),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Carbon_Fiber.Carbon_Fiber.png"),
+	::anno::key_words(string[]("fabric", "composite", "woven", "new", "bumped", "design", "automotive", "black", "dark", "neutral"))
+]]
+ = 
+    let {
+        bool tmp0 = true;
+        material_surface tmp1(enable_coating ? ::df::custom_curve_layer(0.0399999991f, 1.f, 5.f, 1.f, ::df::microfacet_ggx_smith_bsdf((float3(::base::file_texture(texture_2d("./textures/surface_damages_multi_R_rough_B_rough2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(coating_damages_scale * 8.f)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).y * coating_dust + ::math::max(::math::lerp(::math::lerp(0.f, 0.300000012f, coating_roughness), coating_roughness * ::base::file_texture(texture_2d("./textures/generic_surface_rough.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(coating_damages_scale * 8.f)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).mono, histogram_range(coating_roughness_variation, 0.229999989f, 0.300000012f)), float3(::base::file_texture(texture_2d("./textures/surface_damages_multi_R_rough_B_rough2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(coating_damages_scale * 8.f)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x * coating_damages_intensity)) * (float3(::base::file_texture(texture_2d("./textures/surface_damages_multi_R_rough_B_rough2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(coating_damages_scale * 8.f)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).y * coating_dust + ::math::max(::math::lerp(::math::lerp(0.f, 0.300000012f, coating_roughness), coating_roughness * ::base::file_texture(texture_2d("./textures/generic_surface_rough.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(coating_damages_scale * 8.f)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).mono, histogram_range(coating_roughness_variation, 0.229999989f, 0.300000012f)), float3(::base::file_texture(texture_2d("./textures/surface_damages_multi_R_rough_B_rough2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(coating_damages_scale * 8.f)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x * coating_damages_intensity)), (float3(::base::file_texture(texture_2d("./textures/surface_damages_multi_R_rough_B_rough2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(coating_damages_scale * 8.f)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).y * coating_dust + ::math::max(::math::lerp(::math::lerp(0.f, 0.300000012f, coating_roughness), coating_roughness * ::base::file_texture(texture_2d("./textures/generic_surface_rough.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(coating_damages_scale * 8.f)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).mono, histogram_range(coating_roughness_variation, 0.229999989f, 0.300000012f)), float3(::base::file_texture(texture_2d("./textures/surface_damages_multi_R_rough_B_rough2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(coating_damages_scale * 8.f)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x * coating_damages_intensity)) * (float3(::base::file_texture(texture_2d("./textures/surface_damages_multi_R_rough_B_rough2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(coating_damages_scale * 8.f)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).y * coating_dust + ::math::max(::math::lerp(::math::lerp(0.f, 0.300000012f, coating_roughness), coating_roughness * ::base::file_texture(texture_2d("./textures/generic_surface_rough.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(coating_damages_scale * 8.f)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).mono, histogram_range(coating_roughness_variation, 0.229999989f, 0.300000012f)), float3(::base::file_texture(texture_2d("./textures/surface_damages_multi_R_rough_B_rough2.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(coating_damages_scale * 8.f)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x * coating_damages_intensity)), color(1.f, 1.f, 1.f), color(0.f, 0.f, 0.f), ::state::texture_tangent_u(0), ::df::scatter_reflect), ::df::weighted_layer(0.0700000003f, ::df::diffuse_transmission_bsdf(color(::math::pow(histogram_scan_big(float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x, 0.48999998f, 0.560000002f), 2.20000005f))), ::df::custom_curve_layer(carbon_fiber_brightness * 0.300000012f + 0.0199999996f, 1.f, 5.f, 1.f, ::df::microfacet_ggx_smith_bsdf(anisotropy_conversion(histogram_range(float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x, 0.769999981f, ::math::lerp(0.300000012f, 0.550000012f, fibers_roughness)), histogram_range(float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x, 0.789999962f, ::math::lerp(0.599999964f, 0.75f, fibers_anisotropy)), texture_rotate / 360.f + float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).z * 0.25f, ::state::texture_tangent_u(0)).roughness_u, anisotropy_conversion(histogram_range(float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x, 0.769999981f, ::math::lerp(0.300000012f, 0.550000012f, fibers_roughness)), histogram_range(float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x, 0.789999962f, ::math::lerp(0.599999964f, 0.75f, fibers_anisotropy)), texture_rotate / 360.f + float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).z * 0.25f, ::state::texture_tangent_u(0)).roughness_v, color(1.f, 1.f, 1.f), color(0.737910986f, 0.737910986f, 0.737910986f), anisotropy_conversion(histogram_range(float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x, 0.769999981f, ::math::lerp(0.300000012f, 0.550000012f, fibers_roughness)), histogram_range(float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x, 0.789999962f, ::math::lerp(0.599999964f, 0.75f, fibers_anisotropy)), texture_rotate / 360.f + float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).z * 0.25f, ::state::texture_tangent_u(0)).tangent_u, ::df::scatter_reflect), ::df::weighted_layer(0.219999999f, ::df::diffuse_reflection_bsdf(color(::math::pow(histogram_pos_range(float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x, 0.469999999f, 0.149999991f), 2.20000005f)), 0.f), bsdf(), ::state::normal()), add_detail_normal(::base::tangent_space_normal_texture(texture_2d("./textures/carbon_fiber_fibers_norm.jpg", ::tex::gamma_linear), 1.f, false, false, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), 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), ::base::tangent_space_normal_texture(texture_2d("./textures/carbon_fiber_weaving_norm.png", ::tex::gamma_linear), weaving_bump_strength, false, false, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.25f)), 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))), add_detail_normal(::base::tangent_space_normal_texture(texture_2d("./textures/carbon_fiber_fibers_norm.jpg", ::tex::gamma_linear), 1.f, false, false, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), 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), ::base::tangent_space_normal_texture(texture_2d("./textures/carbon_fiber_weaving_norm.png", ::tex::gamma_linear), weaving_bump_strength, false, false, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.25f)), 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))), ::base::tangent_space_normal_texture(texture_2d("./textures/surface_damages_norm.jpg", ::tex::gamma_linear), coating_damages_intensity * 0.5f, false, false, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(coating_damages_scale * 8.f)), 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)) : ::df::weighted_layer(0.0700000003f, ::df::diffuse_transmission_bsdf(color(::math::pow(histogram_scan_big(float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x, 0.48999998f, 0.560000002f), 2.20000005f))), ::df::custom_curve_layer(carbon_fiber_brightness * 0.300000012f + 0.0199999996f, 1.f, 5.f, 1.f, ::df::microfacet_ggx_smith_bsdf(anisotropy_conversion(histogram_range(float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x, 0.769999981f, ::math::lerp(0.300000012f, 0.550000012f, fibers_roughness)), histogram_range(float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x, 0.789999962f, ::math::lerp(0.599999964f, 0.75f, fibers_anisotropy)), texture_rotate / 360.f + float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).z * 0.25f, ::state::texture_tangent_u(0)).roughness_u, anisotropy_conversion(histogram_range(float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x, 0.769999981f, ::math::lerp(0.300000012f, 0.550000012f, fibers_roughness)), histogram_range(float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x, 0.789999962f, ::math::lerp(0.599999964f, 0.75f, fibers_anisotropy)), texture_rotate / 360.f + float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).z * 0.25f, ::state::texture_tangent_u(0)).roughness_v, color(1.f, 1.f, 1.f), color(0.737910986f, 0.737910986f, 0.737910986f), anisotropy_conversion(histogram_range(float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x, 0.769999981f, ::math::lerp(0.300000012f, 0.550000012f, fibers_roughness)), histogram_range(float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x, 0.789999962f, ::math::lerp(0.599999964f, 0.75f, fibers_anisotropy)), texture_rotate / 360.f + float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).z * 0.25f, ::state::texture_tangent_u(0)).tangent_u, ::df::scatter_reflect), ::df::weighted_layer(0.219999999f, ::df::diffuse_reflection_bsdf(color(::math::pow(histogram_pos_range(float3(::base::file_texture(texture_2d("./textures/carbon_fiber_multi_R_rough_G_cutout_B_patternA.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 0.f, int2(0), ::tex::wrap_repeat, 30.f).tint).x, 0.469999999f, 0.149999991f), 2.20000005f)), 0.f), bsdf(), ::state::normal()), add_detail_normal(::base::tangent_space_normal_texture(texture_2d("./textures/carbon_fiber_fibers_norm.jpg", ::tex::gamma_linear), 1.f, false, false, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), 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), ::base::tangent_space_normal_texture(texture_2d("./textures/carbon_fiber_weaving_norm.png", ::tex::gamma_linear), weaving_bump_strength, false, false, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.25f)), 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))), add_detail_normal(::base::tangent_space_normal_texture(texture_2d("./textures/carbon_fiber_fibers_norm.jpg", ::tex::gamma_linear), 1.f, false, false, vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), 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), ::base::tangent_space_normal_texture(texture_2d("./textures/carbon_fiber_weaving_norm.png", ::tex::gamma_linear), weaving_bump_strength, false, false, vmat_transform_post_scale(vmat_transform(texture_translate, texture_rotate, texture_scale * 0.075000003f, ::base::texture_coordinate_uvw, uv_space_index), float2(0.25f)), 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))), material_emission(emission: edf(), intensity: color(0.f, 0.f, 0.f), mode: intensity_radiant_exitance));
+        material_surface tmp2 = material_surface(scattering: bsdf(), emission: material_emission(emission: edf(), intensity: color(0.f, 0.f, 0.f), mode: intensity_radiant_exitance));
+        color tmp3 = color(1.f, 1.f, 1.f);
+        material_volume tmp4 = material_volume(scattering: vdf(), absorption_coefficient: color(0.f, 0.f, 0.f), scattering_coefficient: color(0.f, 0.f, 0.f));
+        material_geometry tmp5(float3(0.f), 1.f, roundcorners_enable ? ::state::rounded_corner_normal(roundcorners_radius_mm * 0.00100000005f, true, float(roundcorners_across_materials)) : ::state::normal());
+    } in
+		material(
+			thin_walled: tmp0,
+			surface: tmp1,
+			backface: tmp2,
+			ior: tmp3,
+			volume: tmp4,
+			geometry: tmp5,
+			hair: hair_bsdf());
+
+// 2
+export material Carbon_Fiber_Matte_Uncoated(*)
+[[
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+	::anno::display_name("Carbon Fiber - Matte Uncoated"),
+	::anno::description(DESCRIPTION),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Carbon_Fiber.Carbon_Fiber_Matte_Uncoated.png"),
+	::anno::key_words(string[]("fabric", "composite", "woven", "new", "matte", "bumped", "design", "automotive", "black", "dark", "neutral"))
+]] = Carbon_Fiber(
+	carbon_fiber_brightness:		0.22f,
+	fibers_roughness:				0.75f,
+	fibers_anisotropy:				0.18f,
+	weaving_bump_strength:			1.0f,
+	enable_coating:					false,
+	coating_roughness:				0.0f,
+	coating_roughness_variation:	0.36f,
+	coating_damages_intensity:		0.0f,
+	coating_damages_scale:			1.00f,
+	coating_dust:					0.23f,
+	texture_translate:				float2(0.0f),
+	texture_rotate:					0.0f,
+	texture_scale:					float2(1.0f),
+	roundcorners_enable:			false,
+	roundcorners_radius_mm:			1.5f,
+	roundcorners_across_materials:	false,
+	uv_space_index:					0
+);
+
+// 3
+export material Carbon_Fiber_Shiny_Coating(*)
+[[
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+	::anno::display_name("Carbon Fiber - Shiny Coating"),
+	::anno::description(DESCRIPTION),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Carbon_Fiber.Carbon_Fiber_Shiny_Coating.png"),
+	::anno::key_words(string[]("fabric", "composite", "woven", "new", "coated", "smooth", "design", "automotive", "coated", "black", "dark", "neutral"))
+]] = Carbon_Fiber(
+	carbon_fiber_brightness:		0.22f,
+	fibers_roughness:				0.41f,
+	fibers_anisotropy:				0.22f,
+	weaving_bump_strength:			1.0f,
+	enable_coating:					true,
+	coating_roughness:				0.0f,
+	coating_roughness_variation:	0.36f,
+	coating_damages_intensity:		0.0f,
+	coating_damages_scale:			1.00f,
+	coating_dust:					0.15f,
+	texture_translate:				float2(0.0f),
+	texture_rotate:					0.0f,
+	texture_scale:					float2(1.0f),
+	roundcorners_enable:			false,
+	roundcorners_radius_mm:			1.5f,
+	roundcorners_across_materials:	false,
+	uv_space_index:					0
+);
+
+
+// 4
+export material Carbon_Fiber_Worn_Coating(*)
+[[
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+	::anno::display_name("Carbon Fiber - Worn Coating"),
+	::anno::description(DESCRIPTION),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Carbon_Fiber.Carbon_Fiber_Worn_Coating.png"),
+	::anno::key_words(string[]("fabric", "composite", "woven", "worn", "used", "old", "scratched", "shiny", "bumped", "design", "automotive", "coated", "black", "dark", "neutral"))
+]] = Carbon_Fiber(
+	carbon_fiber_brightness:		0.22f,
+	fibers_roughness:				0.41f,
+	fibers_anisotropy:				0.18f,
+	weaving_bump_strength:			1.0f,
+	enable_coating:					true,
+	coating_roughness:				0.0f,
+	coating_roughness_variation:	0.96f,
+	coating_damages_intensity:		0.97f,
+	coating_damages_scale:			1.00f,
+	coating_dust:					0.73f,
+	texture_translate:				float2(0.0f),
+	texture_rotate:					0.0f,
+	texture_scale:					float2(1.0f),
+	roundcorners_enable:			false,
+	roundcorners_radius_mm:			1.5f,
+	roundcorners_across_materials:	false,
+	uv_space_index:					0
+);
+
+// 5
+export material Carbon_Fiber_Matte_Coating(*)
+[[
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+	::anno::display_name("Carbon Fiber - Matte Coating"),
+	::anno::description(DESCRIPTION),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Carbon_Fiber.Carbon_Fiber_Matte_Coating.png"),
+	::anno::key_words(string[]("fabric", "composite", "woven", "new", "matte", "design", "automotive", "coated", "black", "dark", "neutral"))
+]] = Carbon_Fiber(
+	carbon_fiber_brightness:		0.22f,
+	fibers_roughness:				0.41f,
+	fibers_anisotropy:				0.18f,
+	weaving_bump_strength:			1.0f,
+	enable_coating:					true,
+	coating_roughness:				0.74f,
+	coating_roughness_variation:	0.36f,
+	coating_damages_intensity:		0.0f,
+	coating_damages_scale:			1.0f,
+	coating_dust:					0.23f,
+	texture_translate:				float2(0.0f),
+	texture_rotate:					0.0f,
+	texture_scale:					float2(1.0f),
+	roundcorners_enable:			false,
+	roundcorners_radius_mm:			1.5f,
+	roundcorners_across_materials:	false,
+	uv_space_index:					0
+);
+
+//6
+export material Carbon_Fiber_Dusty_Coating(*)
+[[
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+	::anno::display_name("Carbon Fiber - Dusty Coating"),
+	::anno::description(DESCRIPTION),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Carbon_Fiber.Carbon_Fiber_Dusty_Coating.png"),
+	::anno::key_words(string[]("fabric", "composite", "woven", "shiny", "bumped", "design", "automotive", "coated", "black", "dark", "neutral"))
+]] = Carbon_Fiber(
+	carbon_fiber_brightness:		0.22f,
+	fibers_roughness:				0.41f,
+	fibers_anisotropy:				0.18f,
+	weaving_bump_strength:			1.0f,
+	enable_coating:					true,
+	coating_roughness:				0.08f,
+	coating_roughness_variation:	0.5f,
+	coating_damages_intensity:		0.12f,
+	coating_damages_scale:			0.65f,
+	coating_dust:					1.0f,
+	texture_translate:				float2(0.0f),
+	texture_rotate:					0.0f,
+	texture_scale:					float2(1.0f),
+	roundcorners_enable:			false,
+	roundcorners_radius_mm:			1.5f,
+	roundcorners_across_materials:	false,
+	uv_space_index:					0
+);
+
+//7
+export material Carbon_Fiber_Aluminized(*)
+[[
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+	::anno::display_name("Carbon Fiber - Aluminized"),
+	::anno::description(DESCRIPTION),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Carbon_Fiber.Carbon_Fiber_Aluminized.png"),
+	::anno::key_words(string[]("fabric", "composite", "woven", "shiny", "bumped", "design", "automotive", "aluminum", "gray", "neutral"))
+]] = Carbon_Fiber(
+	carbon_fiber_brightness:		0.58f,
+	fibers_roughness:				0.41f,
+	fibers_anisotropy:				0.18f,
+	weaving_bump_strength:			1.3f,
+	enable_coating:					false,
+	coating_roughness:				0.08f,
+	coating_roughness_variation:	0.5f,
+	coating_damages_intensity:		0.08f,
+	coating_damages_scale:			0.65f,
+	coating_dust:					0.05f,
+	texture_translate:				float2(0.0f),
+	texture_rotate:					0.0f,
+	texture_scale:					float2(1.0f),
+	roundcorners_enable:			false,
+	roundcorners_radius_mm:			1.5f,
+	roundcorners_across_materials:	false,
+	uv_space_index:					0
+);
+
+
+//8
+export material Carbon_Fiber_Aluminized_Coated(*)
+[[
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+	::anno::display_name("Carbon Fiber - Aluminized Coated"),
+	::anno::description(DESCRIPTION),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Carbon_Fiber.Carbon_Fiber_Aluminized_Coated.png"),
+	::anno::key_words(string[]("fabric", "composite", "woven", "shiny", "bumped", "design", "automotive", "aluminum", "coated", "gray", "neutral"))
+]] = Carbon_Fiber(
+	carbon_fiber_brightness:		0.58f,
+	fibers_roughness:				0.41f,
+	fibers_anisotropy:				0.18f,
+	weaving_bump_strength:			1.3f,
+	enable_coating:					true,
+	coating_roughness:				0.08f,
+	coating_roughness_variation:	0.5f,
+	coating_damages_intensity:		0.08f,
+	coating_damages_scale:			0.65f,
+	coating_dust:					0.05f,
+	texture_translate:				float2(0.0f),
+	texture_rotate:					0.0f,
+	texture_scale:					float2(1.0f),
+	roundcorners_enable:			false,
+	roundcorners_radius_mm:			1.5f,
+	roundcorners_across_materials:	false,
+	uv_space_index:					0
+);

code/third_party/vMaterials_2/Composite/Fiberglass.mdl

@@ -0,0 +1,394 @@
+/******************************************************************************
+ *	        Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA’s Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+
+mdl 1.5;
+
+import ::anno::*;
+import ::base::*;
+import ::df::*;
+import ::math::*;
+import ::state::*;
+import ::tex::*;
+import ::nvidia::core_definitions::blend_colors;
+import ::nvidia::core_definitions::dimension;
+
+const string COPYRIGHT = 
+" Copyright 2024 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";
+
+annotation preview_scale( float f);
+
+::base::texture_coordinate_info transform_coordinate_2(
+	float4x4 transform										 
+		[[ ::anno::description("A transformation to be applied to the source coordinates. rotation_translation_scale() is a suggested means to compute the transformation matrix.") ]],
+	::base::texture_coordinate_info coordinate = ::base::texture_coordinate_info()
+		[[ ::anno::description("Coordinate, typically sourced from coordinate_source or coordinate_projection.") ]]
+) [[ 
+	::anno::description("Transform a texture coordinate by a matrix.") ,
+	::anno::noinline()
+  ]]
+{
+	// Version 2
+	float4 r_position = transform * float4(coordinate.position.x,coordinate.position.y,coordinate.position.z,1);
+	//Try aproximating it for the case that the rotation is only aroud z and assuming the texture layout is nice and z is ~constant.
+	//just pretend there is no other rotation happening
+	//get rid of scaling and translation. Then extract fields where sin and cos would be in a simple 2d transform around z.
+	float4 u = transform[0];
+	float3 ru = ::math::normalize(float3(u.x,u.y,u.z));
+	float cos =  ru.x; 
+	float sin =  -ru.y;
+	//TODO: at least also handle sign of z?
+	//TODO: handle tangent becoming 0 
+	
+	
+	return ::base::texture_coordinate_info(
+		float3(r_position.x,r_position.y,r_position.z),
+		::math::normalize(cos * coordinate.tangent_u - sin * coordinate.tangent_v),
+		::math::normalize(cos * coordinate.tangent_v + sin * coordinate.tangent_u));
+}
+
+
+::base::texture_coordinate_info vmat_transform(
+								float2 translation = float2(0.0, 0.0),
+								float rotation	 = 0.0,				// rotation in degrees
+								float2 scaling	 = float2(1.0, 1.0),
+								uniform ::base::texture_coordinate_system system = ::base::texture_coordinate_uvw,
+								uniform int uv_space	   = 0
+)
+{
+	float rotation_rad = (rotation * 3.1415926535897932384626433832f) / 180.f;
+	float4x4 scale =
+	float4x4(1.0 /scaling.x, 0.			 ,  0. ,	 0.,
+			 0.			, 1.0 /scaling.y ,  0. ,	 0.,
+			 0.			, 0.			 ,  1.0,	 0.,
+			 translation.x , translation.y  ,  0.0,	 1.);
+
+	float s = ::math::sin(rotation_rad);
+	float c = ::math::cos(rotation_rad);
+	float4x4 rotate =
+	float4x4(  c  ,  -s   , 0.0 , 0.0,
+			   s  ,   c   , 0.0 , 0.0,
+			   0.0,   0.0 , 1.0 , 0.0,
+			   0. ,   0.0 , 0.0 , 1.);
+	
+	return transform_coordinate_2(scale*rotate, ::base::coordinate_source(system, uv_space));
+}
+
+
+float remap_xy_to_0_1(float input, float x, float y)
+{
+	return (input - x)/(y - x);
+}
+
+float histogram_range(float input, float range = 1.0f, float position = 0.5f)
+{	
+	float low = ::math::clamp(1.0 - ::math::min(((1.0 - position) + range * 0.5), (1.0 - position) * 2), 0.0, 1.0);
+	float high = ::math::clamp(::math::min((position + range * 0.5 ), position * 2.0), 0.0, 1.0);
+	return ::math::lerp(low, high, input);
+}
+
+float histogram_scan(float input, float width, float position)
+{	
+	float low = ::math::clamp(1.0f - position * 2.0, 0.0f ,1.0f);
+	float high = ::math::clamp(position > 0.5f ? 1.0 : 2.0f - 2 * position, 0.0f, 1.0f);
+	//float center = (low + high)/2.0f);
+	float offset = ((high - low) / 2.0) * width;
+	low += offset;
+	high -= offset;
+	return ::math::clamp(
+				remap_xy_to_0_1(input,
+					low,
+					high),
+				0.0,
+				1.0);
+}
+
+// Returns the normal n in tangent space, given n is in internal space.
+float3 transform_internal_to_tangent(float3 n)
+[[ 
+	::anno::hidden() 
+]]
+{
+	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)
+[[ 
+	::anno::hidden() 
+]]
+{
+	return  ::state::texture_tangent_u(0) * n.x +
+			::state::texture_tangent_v(0) * n.y +
+			::state::normal() * n.z ;
+}
+
+
+
+// Returns a normal by adding a detail normal to a global normal.
+// If detail blending of two normal maps gives visual artifacts, check if texture_2d are loaded
+// correctly with ::tex::gamma_linear
+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));
+}
+
+export material Fiberglass(
+	float fibers_shininess = 0.5f [[
+		::anno::description("Makes the fiber glass material duller or shinier. Default value is 0.5."),
+		::anno::display_name("Fibers Shininess"),
+		::anno::in_group("Appearance"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(0)
+	]],
+	color fiberglass_tint = color(.8f) [[
+		::anno::description("Tints the glass fiber material."),
+		::anno::display_name("Fiberglass Tint"),
+		::anno::in_group("Appearance", "Diffuse"),
+		::anno::ui_order(1)
+	]],
+	uniform float weaving_bump_strength = 1.0f [[
+		::anno::description("Determines the degree of bumpiness."),
+		::anno::display_name("Weaving Bump Strength"),
+		::anno::in_group("Appearance", "Bump"),
+		::anno::soft_range(0.f, 1.f),
+		::anno::hard_range(0.f, 3.f),
+		::anno::ui_order(2)
+	]],
+	uniform float fibers_bump_strength = 1.f [[
+		::anno::description("Determines the degree of bumpiness of the fibers."),
+		::anno::display_name("Fibers Bump Strength"),
+		::anno::in_group("Appearance", "Bump"),
+		::anno::hard_range(0.f, 3.f),
+		::anno::soft_range(0.f, 1.f),
+		::anno::ui_order(3)
+	]],
+	float diffuse_brightness = 0.61f [[
+		::anno::description("The diffuse brightness of the fibers."),
+		::anno::display_name("Diffuse Brightness"),
+		::anno::in_group("Appearance", "Advanced"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(5)
+	]],
+	float specular_weight = 1.f [[
+		::anno::description("The amount of glossiness variation for the vertical fiber glossiness."),
+		::anno::display_name("Specular Weight"),
+		::anno::in_group("Appearance", "Advanced"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(4)
+	]],
+	float diffuse_transmission_weight = 0.21f [[
+		::anno::description("Weight of the diffuse transmission."),
+		::anno::display_name("Diffuse Transmission Weight"),
+		::anno::in_group("Appearance", "Advanced"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(6)
+	]],
+	float2 texture_translate = float2(0.f) [[
+		::anno::description("Controls the position of the texture."),
+		::anno::display_name("Texture Translate"),
+		::anno::in_group("Transform"),
+		::anno::ui_order(10)
+	]],
+	float texture_rotate = 0.f [[
+		::anno::description("Rotates angle of the texture in degrees."),
+		::anno::display_name("Texture Rotate"),
+		::anno::in_group("Transform"),
+		::anno::soft_range(0.f, 360.f),
+		::anno::ui_order(11)
+	]],
+	float2 texture_scale = float2(1.0f) [[
+		::anno::description("Larger numbers increase the size."),
+		::anno::display_name("Texture Scale"),
+		::anno::in_group("Transform"),
+		::nvidia::core_definitions::dimension(float2(1.0f, 1.0f)),
+		::preview_scale(2.5f),
+		::anno::ui_order(12)
+	]],
+	uniform int uv_space_index = 0 [[
+		::anno::description("The UV space to use for the texture mapping."),
+		::anno::display_name("UV Space Index"),
+		::anno::in_group("Advanced"),
+		::anno::ui_order(13)
+	]])
+[[
+	::anno::description("A fiberglass material."),
+	::anno::display_name("Fiberglass"),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Fiberglass.Fiberglass.png"),
+	::anno::key_words(string[]("fiber", "fiberglass", "artificial", "design", "fabric", "mesh", "woven", "synthetic", "white", "light", "neutral")),
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Ruediger Raab"),
+	::anno::contributor("Maik Rohland")
+]]
+ = 
+	let {
+		
+		float2 texture_rescale = texture_scale * 0.1f;
+		
+		bool tmp0 = false;
+		material_surface tmp1(::df::weighted_layer(diffuse_transmission_weight, ::df::diffuse_transmission_bsdf(nvidia::core_definitions::blend_colors(color(histogram_range(float3(::base::file_texture(texture_2d("./textures/fiberglass_multi_R_rough_G_ao_B_mask.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 1.f, 0.810000002f)), fiberglass_tint, ::base::color_layer_multiply, 1.f).tint), ::df::custom_curve_layer(specular_weight, 1.f, 5.f, histogram_scan(float3(::base::file_texture(texture_2d("./textures/fiberglass_multi_R_rough_G_ao_B_mask.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[1], 0.f, 0.469999999f), ::df::microfacet_ggx_smith_bsdf(::math::max(::math::smoothstep(0.789999962f, 0.790999949f, float3(::base::file_texture(texture_2d("./textures/fiberglass_multi_R_rough_G_ao_B_mask.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2]) * histogram_range(float3(::base::file_texture(texture_2d("./textures/fiberglass_multi_R_rough_G_ao_B_mask.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 1.f, ::math::lerp(0.389999986f, 0.0799999982f, fibers_shininess)), histogram_range(float3(::base::file_texture(texture_2d("./textures/fiberglass_multi_R_rough_G_ao_B_mask.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 1.f, ::math::lerp(0.800000012f, 0.5f, fibers_shininess)) * ::math::min(1.f - ::math::smoothstep(0.50999999f, 0.539999962f, float3(::base::file_texture(texture_2d("./textures/fiberglass_multi_R_rough_G_ao_B_mask.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2]), ::math::smoothstep(0.340000004f, 0.389999986f, float3(::base::file_texture(texture_2d("./textures/fiberglass_multi_R_rough_G_ao_B_mask.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2]))), ::math::max(::math::smoothstep(0.789999962f, 0.790999949f, float3(::base::file_texture(texture_2d("./textures/fiberglass_multi_R_rough_G_ao_B_mask.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2]) * histogram_range(float3(::base::file_texture(texture_2d("./textures/fiberglass_multi_R_rough_G_ao_B_mask.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 1.f, ::math::lerp(0.800000012f, 0.5f, fibers_shininess)), histogram_range(float3(::base::file_texture(texture_2d("./textures/fiberglass_multi_R_rough_G_ao_B_mask.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 1.f, ::math::lerp(0.389999986f, 0.0799999982f, fibers_shininess)) * ::math::min(1.f - ::math::smoothstep(0.50999999f, 0.539999962f, float3(::base::file_texture(texture_2d("./textures/fiberglass_multi_R_rough_G_ao_B_mask.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2]), ::math::smoothstep(0.340000004f, 0.389999986f, float3(::base::file_texture(texture_2d("./textures/fiberglass_multi_R_rough_G_ao_B_mask.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2]))), color(1.f, 1.f, 1.f), ::state::texture_tangent_u(0), ::df::scatter_reflect), ::df::diffuse_reflection_bsdf(nvidia::core_definitions::blend_colors(color(histogram_range(float3(::base::file_texture(texture_2d("./textures/fiberglass_multi_R_rough_G_ao_B_mask.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 1.f, diffuse_brightness)), fiberglass_tint, ::base::color_layer_multiply, 1.f).tint, 0.f), ::state::normal()), ::state::normal()), material_emission(emission: edf(), intensity: color(0.f, 0.f, 0.f), mode: intensity_radiant_exitance));
+		material_surface tmp2 = material_surface(scattering: bsdf(), emission: material_emission(emission: edf(), intensity: color(0.f, 0.f, 0.f), mode: intensity_radiant_exitance));
+		color tmp3 = color(1.f, 1.f, 1.f);
+		material_volume tmp4 = material_volume(scattering: vdf(), absorption_coefficient: color(0.f, 0.f, 0.f), scattering_coefficient: color(0.f, 0.f, 0.f));
+		material_geometry tmp5(float3(0.f), ::math::smoothstep(0.0299999993f, 0.0309999995f, float3(::base::file_texture(texture_2d("./textures/fiberglass_multi_R_rough_G_ao_B_mask.jpg", ::tex::gamma_linear), color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2]), add_detail_normal(::base::file_bump_texture(texture_2d("./textures/fiberglass_bump.jpg", ::tex::gamma_linear), fibers_bump_strength, ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, ::state::normal(), false), ::base::tangent_space_normal_texture(texture_2d("./textures/fiberglass_norm.jpg", ::tex::gamma_linear), weaving_bump_strength, false, false, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 1.f, 0.f)));
+		hair_bsdf tmp6 = hair_bsdf();
+	} in
+		material(
+			thin_walled: tmp0,
+			surface: tmp1,
+			backface: tmp2,
+			ior: tmp3,
+			volume: tmp4,
+			geometry: tmp5,
+			hair: tmp6);
+
+
+export material Fiberglass_Flat_Weave(*)
+[[
+	::anno::description("A fiberglass material."),
+	::anno::display_name("Fiberglass Flat Weave"),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Fiberglass.Fiberglass_Flat_Weave.png"),
+	::anno::key_words(string[]("fiber", "fiberglass", "artificial", "design", "fabric", "mesh", "woven", "synthetic", "white", "light", "neutral")),
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Ruediger Raab"),
+	::anno::contributor("Maik Rohland")
+]] = Fiberglass(
+	fibers_shininess:			0.5f,	
+	fiberglass_tint:			color(.85f),
+	weaving_bump_strength:		0.3f,
+	fibers_bump_strength:		1.0f,
+	specular_weight:			1.0f,
+	diffuse_brightness:			0.7f,
+	diffuse_transmission_weight: 0.21f,
+	texture_translate:			float2(0.0f),
+	texture_rotate:				0.0f,
+	texture_scale:				float2(1.0f),
+	uv_space_index:				0
+);
+
+export material Fiberglass_Shiny(*)
+[[
+	::anno::description("A fiberglass material."),
+	::anno::display_name("Fiberglass Shiny"),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Fiberglass.Fiberglass_Shiny.png"),
+	::anno::key_words(string[]("fiber", "fiberglass", "artificial", "design", "fabric", "mesh", "woven", "synthetic", "white", "light", "neutral")),
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Ruediger Raab"),
+	::anno::contributor("Maik Rohland")
+]] = Fiberglass(
+	fibers_shininess:			1.0f,	
+	fiberglass_tint:			color(.8f),
+	weaving_bump_strength:		0.75f,
+	fibers_bump_strength:		1.0f,
+	specular_weight:			1.0f,
+	diffuse_brightness:			0.75f,
+	diffuse_transmission_weight: 0.21f,
+	texture_translate:			float2(0.0f),
+	texture_rotate:				0.0f,
+	texture_scale:				float2(1.0f),
+	uv_space_index:				0
+);
+
+export material Fiberglass_Yellowish(*)
+[[
+	::anno::description("A fiberglass material."),
+	::anno::display_name("Fiberglass Yellowish"),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Fiberglass.Fiberglass_Yellowish.png"),
+	::anno::key_words(string[]("fiber", "fiberglass", "artificial", "design", "fabric", "mesh", "woven", "synthetic", "yellow", "light", "neutral")),
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Ruediger Raab"),
+	::anno::contributor("Maik Rohland")
+]] = Fiberglass(
+	fibers_shininess:			0.0f,	
+	fiberglass_tint:			color(0.875138f, 0.812241f, 0.348865f),
+	weaving_bump_strength:		0.75f,
+	fibers_bump_strength:		1.0f,
+	specular_weight:			1.0f,
+	diffuse_brightness:			0.75f,
+	diffuse_transmission_weight: 0.21f,
+	texture_translate:			float2(0.0f),
+	texture_rotate:				0.0f,
+	texture_scale:				float2(1.0f),
+	uv_space_index:				0
+);
+
+
+export material Fiberglass_Blueish(*)
+[[
+	::anno::description("A fiberglass material."),
+	::anno::display_name("Fiberglass Blueish"),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Fiberglass.Fiberglass_Blueish.png"),
+	::anno::key_words(string[]("fiber", "fiberglass", "artificial", "design", "fabric", "mesh", "woven", "synthetic", "white", "blue", "light", "neutral")),
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Ruediger Raab"),
+	::anno::contributor("Maik Rohland")
+]] = Fiberglass(
+	fibers_shininess:			0.0f,	
+	fiberglass_tint:			color(0.744530f, 0.915750f, 0.957370f),
+	weaving_bump_strength:		0.75f,
+	fibers_bump_strength:		.75f,
+	specular_weight:			1.0f,
+	diffuse_brightness:			0.75f,
+	diffuse_transmission_weight: 0.21f,
+	texture_translate:			float2(0.0f),
+	texture_rotate:				0.0f,
+	texture_scale:				float2(1.0f),
+	uv_space_index:				0
+);

code/third_party/vMaterials_2/Composite/Fiberglass_Imperfections.mdl

@@ -0,0 +1,878 @@
+/******************************************************************************
+ *	        Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA’s Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+
+mdl 1.5;
+
+import ::anno::*;
+import ::base::*;
+import ::df::*;
+import ::math::*;
+import ::state::*;
+import ::tex::*;
+import ::nvidia::core_definitions::blend_colors;
+import ::nvidia::core_definitions::dimension;
+
+
+const string COPYRIGHT = 
+" Copyright 2024 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";
+
+annotation preview_scale( float f);
+
+::base::texture_coordinate_info warped_coordinate(
+//	uniform texture_2d warp_texture,
+	float warp_value,
+	float amount,
+	float angle,
+	::base::texture_coordinate_info uvw = ::base::coordinate_source()
+)
+{
+	uvw.position = float3(uvw.position.x + amount * warp_value * ::math::sin(angle),
+							uvw.position.y + amount * warp_value * ::math::cos(angle),
+							uvw.position.z
+	);
+	return uvw;
+}
+
+
+::base::texture_coordinate_info transform_coordinate_2(
+	float4x4 transform										 
+		[[ ::anno::description("A transformation to be applied to the source coordinates. rotation_translation_scale() is a suggested means to compute the transformation matrix.") ]],
+	::base::texture_coordinate_info coordinate = ::base::texture_coordinate_info()
+		[[ ::anno::description("Coordinate, typically sourced from coordinate_source or coordinate_projection.") ]]
+) [[ 
+	::anno::description("Transform a texture coordinate by a matrix.") ,
+	::anno::noinline()
+  ]]
+{
+	// Version 2
+	float4 r_position = transform * float4(coordinate.position.x,coordinate.position.y,coordinate.position.z,1);
+	//Try aproximating it for the case that the rotation is only aroud z and assuming the texture layout is nice and z is ~constant.
+	//just pretend there is no other rotation happening
+	//get rid of scaling and translation. Then extract fields where sin and cos would be in a simple 2d transform around z.
+	float4 u = transform[0];
+	float3 ru = ::math::normalize(float3(u.x,u.y,u.z));
+	float cos =  ru.x; 
+	float sin =  -ru.y;
+	//TODO: at least also handle sign of z?
+	//TODO: handle tangent becoming 0 
+	
+	
+	return ::base::texture_coordinate_info(
+		float3(r_position.x,r_position.y,r_position.z),
+		::math::normalize(cos * coordinate.tangent_u - sin * coordinate.tangent_v),
+		::math::normalize(cos * coordinate.tangent_v + sin * coordinate.tangent_u));
+}
+
+
+::base::texture_coordinate_info vmat_transform(
+								float2 translation = float2(0.0, 0.0),
+								float rotation	 = 0.0,				// rotation in degrees
+								float2 scaling	 = float2(1.0, 1.0),
+								uniform ::base::texture_coordinate_system system = ::base::texture_coordinate_uvw,
+								uniform int uv_space	   = 0
+)
+{
+	float rotation_rad = (rotation * 3.1415926535897932384626433832f) / 180.f;
+	float4x4 scale =
+	float4x4(1.0 /scaling.x, 0.			 ,  0. ,	 0.,
+			 0.			, 1.0 /scaling.y ,  0. ,	 0.,
+			 0.			, 0.			 ,  1.0,	 0.,
+			 translation.x , translation.y  ,  0.0,	 1.);
+
+	float s = ::math::sin(rotation_rad);
+	float c = ::math::cos(rotation_rad);
+	float4x4 rotate =
+	float4x4(  c  ,  -s   , 0.0 , 0.0,
+			   s  ,   c   , 0.0 , 0.0,
+			   0.0,   0.0 , 1.0 , 0.0,
+			   0. ,   0.0 , 0.0 , 1.);
+	
+	return transform_coordinate_2(scale*rotate, ::base::coordinate_source(system, uv_space));
+}
+
+float uint2float(int x)
+{
+	return float(x & 0x7FFFFFFF) + (x < 0 ? 2147483648.0 : 0.0);
+}
+
+
+int lowbias32(int x)
+{
+	x ^= x >>> 16;
+	x *= 0x7feb352d;
+	x ^= x >>> 15;
+	x *= 0x846ca68b;
+	x ^= x >>> 16;
+	return x;
+}
+
+float2 rotate_around(float2 uv, float angle, float2 pt)
+{	
+	float sine   = ::math::sin(angle);
+	float cosine = ::math::cos(angle);
+	float2x2 rot = float2x2(cosine, -sine, sine, cosine);
+	uv -= pt;
+	uv = rot * uv  ;
+	return uv + pt;
+}
+
+float2 scale_around(float2 uv, float2 scale, float2 pt)
+{	
+	float2x2 rot = float2x2(scale.x, 0., 0., scale.y);
+	uv -= pt;
+	uv = rot * uv;
+	return uv + pt;
+}
+
+
+
+float scatter_grayscale(
+	uniform texture_2d pattern_texture = texture_2d(),
+	uniform texture_2d mask_texture = texture_2d(),
+	uniform texture_2d bluenoise_texture = texture_2d(),
+	
+	float pattern_size 				= 1.0f, // The size of the pattern
+	float pattern_brightness		= 1.0f,
+	float pattern_brightness_variation 	= 0.0,			// amount of color randomization
+	int compute_size 					= 1,	// bigger grid size is required when texture is scaled larger but is more expensive
+	float random_mask_threshold 		= 0.0f,	// higher values cause certain cells not to be rendered
+	bool use_true_random_masking		= false, // vs. using the blue noise texture that spaces the particles more venely apart from each other
+	
+	::base::texture_coordinate_info uvw = ::base::coordinate_source(), // UVW coordinates to be used to lay the bombing over
+	float2 texture_scale 			= float2(30.0f, 30.0f),	
+	float2 offset_randomization 	= float2(.5),	// amount of position randomization. Larger values will require "compute_size" to be
+													// increased, otherwise the texture will be clipped
+	float rotation					= 0.0,			// amount of global rotation
+	float rotation_randomization	= 0.5,			// amount of rotation randomization
+	float scale_randomization 		= 0.0,			// amount of scaling randomization
+	bool additive_blend				= false,		// when false, mode is "max", otherwise "add/sub", centered at 0.5
+	
+	// MASK
+	bool enable_grayscale_mask		= false,
+	float grayscale_mask_threshold	= 0.0,
+	int seed 						= 0
+)
+{
+	float result = 0.0;
+	float4 grayscale_mask_lookup = 0.0f;
+	float masking_value = 0.0;
+	compute_size = compute_size < 1 ? 1 : compute_size;
+	float2 uv = float2(uvw.position.x, uvw.position.y) * texture_scale;
+
+	for(float i = -compute_size; i <= compute_size; i++)
+		for(float j = -compute_size; j <= compute_size; j++)
+		{
+			float2 p = ::math::floor(uv + float2(i, j));
+			float2 f = ::math::frac(uv) - float2(i, j);
+			
+			//float4 rand_4f = rnd42(int2(p));	
+			int r1, r2, r3, r4, r5;
+			// get random values
+			r1 = lowbias32(lowbias32(seed) + int(p[0]) + lowbias32(int(p[1])));
+			r2 = lowbias32(r1);
+			r3 = lowbias32(r2);
+			r4 = lowbias32(r3);
+			r5 = lowbias32(r4);
+			
+			float rnd1, rnd2, rnd3, rnd4, rnd5;
+			rnd1 = uint2float(r1)/ 4294967296.f;
+			rnd2 = uint2float(r2)/ 4294967296.f;
+			rnd3 = uint2float(r3)/ 4294967296.f;
+			rnd4 = uint2float(r4)/ 4294967296.f;
+			rnd5 = uint2float(r5)/ 4294967296.f;
+			
+			f+= (float2(rnd1, rnd2) - float2(0.5f)) * offset_randomization;
+			
+			float2 rand_2f_remap = (float2(rnd3, rnd4) - float2( .5f)) * 2.0f; // center around - 1.0 - 1.0
+			f = rotate_around(f, (rotation + rand_2f_remap.x * rotation_randomization) * 3.1415, float2(0.5));
+			f = scale_around(f, float2(1.0 + rand_2f_remap.y * scale_randomization)/ pattern_size, float2(0.5));
+
+			int blue_noise_width = ::tex::width(bluenoise_texture);
+			int blue_noise_height = ::tex::height(bluenoise_texture);
+			
+			// switch between completely random mask and mask mrovided by blue noise texture
+			masking_value = use_true_random_masking ? rnd4 : 
+						::tex::texel_float4(bluenoise_texture, int2(int(::math::floor(p.x))%blue_noise_width, int(::math::floor(p.y))%blue_noise_height)).x;
+			
+			if (enable_grayscale_mask == true)
+			{
+				// compute exact center of cells for the masking before it is being offset. We are not computing the mask
+				// at the position where the element that is being scattered is ending up. That could be an alternative mode to be implemented. 
+				float2 cell_size = float2(1.0/texture_scale);
+				grayscale_mask_lookup = ::tex::lookup_float4(mask_texture, float2(cell_size/2 + cell_size * p));
+			}
+			bool mask_pass = (grayscale_mask_lookup.x > grayscale_mask_threshold) || enable_grayscale_mask == false;
+			
+			if(f.x >= 0.0 && f.x < 1.0 && f.y >= 0.0 && f.y < 1.0 && mask_pass && random_mask_threshold < masking_value)
+			{
+				float4 lookup = ::tex::lookup_float4(pattern_texture, float2(f), ::tex::wrap_repeat, ::tex::wrap_repeat, float2(0.0, 1.0), float2(0.0, 1.0));
+				// do blending of lookup
+				// if (blend_add_sub == true)
+				// {
+					// value = (lookup.x + lookup.y + lookup.z)/3 - 0.5;
+					// result = ::math::clamp(result + value * (1.0 - rand_4f.z * pattern_brightness_variation), 0.0f, 1.0f);
+				// }
+				// else
+					
+				if (additive_blend == true)
+					result = result + (lookup.x + lookup.y + lookup.z)/3 * (1.0 - rnd5 * pattern_brightness_variation)*pattern_brightness;
+				else
+					result =  ::math::max((lookup.x + lookup.y + lookup.z)/3 * (1.0 - rnd5 * pattern_brightness_variation)*pattern_brightness, result);
+			}
+		}
+
+	return result;
+}
+
+float scatter_atlas_grayscale(
+	uniform texture_2d pattern_atlas_texture = texture_2d(),
+	uniform texture_2d mask_texture = texture_2d(),
+	uniform texture_2d bluenoise_texture = texture_2d(),
+	
+	uniform int atlas_size			= 2,
+	int min_pattern					= 1,
+	int max_pattern					= 4,
+	float pattern_size 				= 1.0f, // The size of the pattern
+	float pattern_brightness		= 1.0f,
+	float pattern_brightness_variation 	= 0.0,			// amount of color randomization
+	int compute_size 					= 1,	// bigger grid size is required when texture is scaled larger but is more expensive
+	float random_mask_threshold 		= 0.0f,	// higher values cause certain cells not to be rendered
+	bool use_true_random_masking		= false, // vs. using the blue noise texture that spaces the particles more venely apart from each other
+	
+	::base::texture_coordinate_info uvw = ::base::coordinate_source(), // UVW coordinates to be used to lay the bombing over
+	float2 texture_scale 			= float2(30.0f, 30.0f),	
+	float2 offset_randomization 	= float2(.5),	// amount of position randomization. Larger values will require "compute_size" to be
+													// increased, otherwise the texture will be clipped
+	float rotation					= 0.0,			// amount of global rotation
+	float rotation_randomization	= 0.5,			// amount of rotation randomization
+	float scale_randomization 		= 0.0,			// amount of scaling randomization
+	bool additive_blend				= false,		// when false, mode is "max", otherwise "add/sub", centered at 0.5
+	
+	// MASK
+	bool enable_grayscale_mask		= false,
+	float grayscale_mask_threshold	= 0.0,
+	int seed 						= 0
+)
+{
+	float result = 0.0;
+	float4 grayscale_mask_lookup = 0.0f;
+	float masking_value = 0.0;
+	compute_size = compute_size < 1 ? 1 : compute_size;
+	float atlas_tile_size = 1.0f/atlas_size;	// dimension of a single atlas tile
+	float2 uv = float2(uvw.position.x, uvw.position.y) * texture_scale;
+	
+
+	for(float i = -compute_size; i <= compute_size; i++)
+		for(float j = -compute_size; j <= compute_size; j++)
+		{
+			float2 p = ::math::floor(uv + float2(i, j));
+			float2 f = ::math::frac(uv) - float2(i, j);
+			
+			//float4 rand_4f = rnd42(int2(p));	
+			int r1, r2, r3, r4, r5;
+			// get random values
+			r1 = lowbias32(lowbias32(seed) + int(p[0]) + lowbias32(int(p[1])));
+			r2 = lowbias32(r1);
+			r3 = lowbias32(r2);
+			r4 = lowbias32(r3);
+			r5 = lowbias32(r4);
+			
+			float rnd1, rnd2, rnd3, rnd4, rnd5;
+			rnd1 = uint2float(r1)/ 4294967296.f;
+			rnd2 = uint2float(r2)/ 4294967296.f;
+			rnd3 = uint2float(r3)/ 4294967296.f;
+			rnd4 = uint2float(r4)/ 4294967296.f;
+			rnd5 = uint2float(r5)/ 4294967296.f;
+			
+			f+= (float2(rnd1, rnd2) - float2(0.5f)) * offset_randomization;
+			
+			float2 rand_2f_remap = (float2(rnd3, rnd4) - float2( .5f)) * 2.0f; // center around - 1.0 - 1.0
+			float rot_angle = (rotation + rand_2f_remap.x * rotation_randomization) * 3.1415;
+			f = rotate_around(f, rot_angle, float2(0.5));
+			f = scale_around(f, float2(1.0 + rand_2f_remap.y * scale_randomization)/ pattern_size, float2(0.5));
+
+			int blue_noise_width = ::tex::width(bluenoise_texture);
+			int blue_noise_height = ::tex::height(bluenoise_texture);
+			
+			// switch between completely random mask and mask mrovided by blue noise texture
+			masking_value = use_true_random_masking ? rnd4 : 
+						::tex::texel_float4(bluenoise_texture, int2(int(::math::floor(p.x))%blue_noise_width, int(::math::floor(p.y))%blue_noise_height)).x;
+			
+			if (enable_grayscale_mask == true)
+			{
+				// compute exact center of cells for the masking before it is being offset. We are not computing the mask
+				// at the position where the element that is being scattered is ending up. That could be an alternative mode to be implemented. 
+				float2 cell_size = float2(1.0/texture_scale);
+				grayscale_mask_lookup = ::tex::lookup_float4(mask_texture, float2(cell_size/2 + cell_size * p));
+			}
+			bool mask_pass = (grayscale_mask_lookup.x > grayscale_mask_threshold) || enable_grayscale_mask == false;
+			
+			if(f.x >= 0.0 && f.x < 1.0 && f.y >= 0.0 && f.y < 1.0 && mask_pass && random_mask_threshold < masking_value)
+			{
+				// compute atlas tile from random number and derive tile coordinates from that
+
+				float atlas_tile = ::math::floor(::math::lerp(float(min_pattern), float(max_pattern+1), rnd5)); 
+				float div = (atlas_tile/atlas_size); 
+				float remainder =  div - ::math::floor(div);
+				
+				// Perform lookup in the range that was selected
+				float2 lookup_uv = float2(::math::lerp(::math::floor(div) * atlas_tile_size, ::math::floor(div) * atlas_tile_size + atlas_tile_size, f.x),
+										::math::lerp(remainder, remainder + atlas_tile_size, f.y));
+				
+				float4 lookup = ::tex::lookup_float4(pattern_atlas_texture, lookup_uv, ::tex::wrap_repeat, ::tex::wrap_repeat, float2(0.0, 1.0), float2(0.0, 1.0));
+
+				if (additive_blend == true)
+					result = result + (lookup.x + lookup.y + lookup.z)/3 * (1.0 - rnd1 * pattern_brightness_variation)*pattern_brightness;
+				else
+					result =  ::math::max((lookup.x + lookup.y + lookup.z)/3 * (1.0 - rnd1 * pattern_brightness_variation)*pattern_brightness, result);
+				
+			}
+		}
+
+	return result;
+}
+
+float remap_xy_to_0_1(float input, float x, float y)
+{
+	return (input - x)/(y - x);
+}
+
+float histogram_range(float input, float range = 1.0f, float position = 0.5f)
+{	
+	float low = ::math::clamp(1.0 - ::math::min(((1.0 - position) + range * 0.5), (1.0 - position) * 2), 0.0, 1.0);
+	float high = ::math::clamp(::math::min((position + range * 0.5 ), position * 2.0), 0.0, 1.0);
+	return ::math::lerp(low, high, input);
+}
+
+float histogram_scan(float input, float width, float position)
+{	
+	float low = ::math::clamp(1.0f - position * 2.0, 0.0f ,1.0f);
+	float high = ::math::clamp(position > 0.5f ? 1.0 : 2.0f - 2 * position, 0.0f, 1.0f);
+	//float center = (low + high)/2.0f);
+	float offset = ((high - low) / 2.0) * width;
+	low += offset;
+	high -= offset;
+	return ::math::clamp(
+				remap_xy_to_0_1(input,
+					low,
+					high),
+				0.0,
+				1.0);
+}
+
+float3 normalmap_normal(
+	uniform texture_2d texture,
+	float factor = 1.0,
+	::base::texture_coordinate_info uvw = ::base::texture_coordinate_info()
+)
+{
+	float3 lookup = (::tex::lookup_float3(texture, float2(uvw.position.x, uvw.position.y)) - float3(0.5)) * (factor * 2.0);
+	return ::math::normalize(uvw.tangent_u * lookup.x + uvw.tangent_v * lookup.y + ::state::normal() * (lookup.z + (1.0 - factor)));
+}
+
+// Returns the normal n in tangent space, given n is in internal space.
+float3 transform_internal_to_tangent(float3 n)
+[[ 
+	::anno::hidden() 
+]]
+{
+	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)
+[[ 
+	::anno::hidden() 
+]]
+{
+	return  ::state::texture_tangent_u(0) * n.x +
+			::state::texture_tangent_v(0) * n.y +
+			::state::normal() * n.z ;
+}
+
+// Returns a normal by adding a detail normal to a global normal.
+// If detail blending of two normal maps gives visual artifacts, check if texture_2d are loaded
+// correctly with ::tex::gamma_linear
+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));
+}
+
+
+
+export material Fiberglass_Imperfections(
+	int seed = 14 [[
+		::anno::description("A random seed to randomize the imperfections."),
+		::anno::display_name("Random Seed"),
+		::anno::in_group("Appearance"),
+		::anno::ui_order(0)
+	]],
+	color fiberglass_tint = color(0.812241f, 0.932277f, 0.957370f) [[
+		::anno::description("Applies a colored tint to the fibers."),
+		::anno::display_name("Fiberglass Tint"),
+		::anno::in_group("Appearance", "Diffuse"),
+		::anno::ui_order(1)
+	]],
+	float fibers_shininess = 1.f [[
+		::anno::description("Makes the fiber glass material duller or shinier. Default value is 0.5."),
+		::anno::display_name("Fibers Shininess"),
+		::anno::in_group("Appearance"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(2)
+	]],
+	uniform float weaving_bump_strength = 0.75f [[
+		::anno::description("Determines the degree of bumpiness for the weaving."),
+		::anno::display_name("Weaving Bump Strength"),
+		::anno::in_group("Appearance", "Bump"),
+		::anno::soft_range(0.f, 1.f),
+		::anno::hard_range(0.f, 3.f),
+		::anno::ui_order(3)
+	]],
+	uniform float fibers_bump_strength = 1.f [[
+		::anno::description("Determines the degree of bumpiness of the fibers."),
+		::anno::display_name("Fibers Bump Strength"),
+		::anno::in_group("Appearance", "Bump"),
+		::anno::hard_range(0.f, 3.f),
+		::anno::soft_range(0.f, 1.f),
+		::anno::ui_order(4)
+	]],
+	float diffuse_brightness = 0.75f [[
+		::anno::description("The diffuse brightness of the fibers."),
+		::anno::display_name("Diffuse Brightness"),
+		::anno::in_group("Appearance", "Advanced"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(5)
+	]],
+	float specular_weight = 1.0f [[
+		::anno::description("The amount of glossiness variation for the vertical fiber glossiness."),
+		::anno::display_name("Specular Weight"),
+		::anno::in_group("Appearance", "Advanced"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(6)
+	]],
+	float diffuse_transmission_weight = 0.21f [[
+		::anno::description("The amount of light being able to scatter through the fibers."),
+		::anno::display_name("Diffuse Transmission Weight"),
+		::anno::in_group("Appearance", "Advanced"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(7)
+	]],
+	float bumps_and_dents_probability = 0.34f [[
+		::anno::description("The probability of generating bumps appearing on the material. Higher values will generate more bumps and dents."),
+		::anno::display_name("Bumps Probability"),
+		::anno::in_group("Bumps and Dents"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(12)
+	]],
+	float bumps_dents_density = 4.5f [[
+		::anno::description("The density of the bumps and dents."),
+		::anno::display_name("Bumps Density"),
+		::anno::in_group("Bumps and Dents"),
+		::anno::soft_range(0.f, 8.f),
+		::anno::enable_if("bumps_and_dents_probability > 0.0"),
+		::anno::ui_order(13)
+	]],
+	float bumps_kernel_size = 1.f [[
+		::anno::description("The area that the bumped imperfection is covering."),
+		::anno::display_name("Bumped Kernel Size"),
+		::anno::in_group("Bumps and Dents"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::enable_if("bumps_and_dents_probability > 0.0"),
+		::anno::ui_order(14)
+	]],
+	float bumps_waves_size = 0.7f [[
+		::anno::description("The dimension of the waves that bump and dent the surface."),
+		::anno::display_name("Bumps Wave Size"),
+		::anno::in_group("Bumps and Dents"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::enable_if("bumps_and_dents_probability > 0.0"),
+		::anno::ui_order(15)
+	]],
+	float bumps_dents_size_variation = 0.9f [[
+		::anno::description("Size variation of the bump surface imperfection."),
+		::anno::display_name("Bumps Size Variation"),
+		::anno::in_group("Bumps and Dents"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::enable_if("bumps_and_dents_probability > 0.0"),
+		::anno::ui_order(16)
+	]],
+	float bumps_dents_intensity = 1.f [[
+		::anno::description("Overall intensity of the bumps."),
+		::anno::display_name("Bumps Overall Intensity"),
+		::anno::in_group("Bumps and Dents"),
+		::anno::hard_range(0.f, 4.f),
+		::anno::enable_if("bumps_and_dents_probability > 0.0"),
+		::anno::ui_order(17)
+	]],
+	float bumps_dents_intensity_variation = 1.0f [[
+		::anno::description("The amount of variation that is applied to the intensitz of the bumps and dents."),
+		::anno::display_name("Bumps Intensity Variation"),
+		::anno::in_group("Bumps and Dents"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::enable_if("bumps_and_dents_probability > 0.0"),
+		::anno::ui_order(18)
+	]],
+	float deformation_probability = 0.5f [[
+		::anno::description("The probability of fabric deformation appearing on the material. Higher values will generate more deformations."),
+		::anno::display_name("Deformations Probability"),
+		::anno::in_group("Deformations"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(19)
+	]],
+	float deformations_density = 5.f [[
+		::anno::description("The density of the deformations."),
+		::anno::display_name("Deformations Density"),
+		::anno::in_group("Deformations"),
+		::anno::soft_range(0.f, 8.f),
+		::anno::enable_if("deformation_probability > 0.0"),
+		::anno::ui_order(20)
+	]],
+	float deformations_size = 1.f [[
+		::anno::description("The area that the fabric deformationis covering."),
+		::anno::display_name("Deformations Kernel  Size"),
+		::anno::in_group("Deformations"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::enable_if("deformation_probability > 0.0"),
+		::anno::ui_order(21)
+	]],
+	float deformations_size_variation = 0.25f [[
+		::anno::description("The amount of size variation of the areas where fabric deformations appear."),
+		::anno::display_name("Deformations Size Variation"),
+		::anno::in_group("Deformations"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::enable_if("deformation_probability > 0.0"),
+		::anno::ui_order(22)
+	]],
+	float deformation_intensity = 0.31f [[
+		::anno::description("The amount of deformation."),
+		::anno::display_name("Deformations Intensity"),
+		::anno::in_group("Deformations"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::enable_if("deformation_probability > 0.0"),
+		::anno::ui_order(23)
+	]],
+	float deformation_intensity_variation = 1.f [[
+		::anno::description("The amount of random variation to areas where surface deformation appears."),
+		::anno::display_name("Deformations Intensity Variation"),
+		::anno::in_group("Deformations"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::enable_if("deformation_probability > 0.0"),
+		::anno::ui_order(24)
+	]],
+	float tearing_probability = 0.13f [[
+		::anno::description("The probability tearing to on the material. Higher values will generate more tearings."),
+		::anno::display_name("Tearings Probability"),
+		::anno::in_group("Tearings"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(25)
+	]],
+	float tearings_density = 3.15f [[
+		::anno::description("The density of tearings appearing on the material."),
+		::anno::display_name("Tearings Density"),
+		::anno::in_group("Tearings"),
+		::anno::soft_range(0.f, 8.f),
+		::anno::enable_if("tearing_probability > 0.0"),
+		::anno::ui_order(26)
+	]],
+	float tearings_size = 1.f [[
+		::anno::description("The area that a tearing is covering."),
+		::anno::display_name("Tearings Kernel Size"),
+		::anno::in_group("Tearings"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::enable_if("tearing_probability > 0.0"),
+		::anno::ui_order(27)
+	]],
+	float tearing_size_variation = 0.36f [[
+		::anno::description("Randomizes the size of the tearings."),
+		::anno::display_name("Tearings Size Variation"),
+		::anno::in_group("Tearings"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::enable_if("tearing_probability > 0.0"),
+		::anno::ui_order(28)
+	]],
+	float tearings_rotation = 0.f [[
+		::anno::description("The overal rotation of the tearings."),
+		::anno::display_name("Tearings Rotation"),
+		::anno::in_group("Tearings"),
+		::anno::soft_range(0.f, 3.f),
+		::anno::enable_if("tearing_probability > 0.0"),
+		::anno::ui_order(29)
+	]],
+	float tearings_rotation_randomization = 0.f [[
+		::anno::description("The amount of random rotation of a tearing."),
+		::anno::display_name("Tearings Rotation Variation"),
+		::anno::in_group("Tearings"),
+		::anno::hard_range(0.f, 1.f),
+		::anno::enable_if("tearing_probability > 0.0"),
+		::anno::ui_order(30)
+	]],
+	float2 texture_translate = float2(0.f) [[
+		::anno::description("Controls the position of the texture."),
+		::anno::display_name("Texture Translate"),
+		::anno::in_group("Transform"),
+		::anno::ui_order(31)
+	]],
+	float texture_rotate = 0.f [[
+		::anno::description("Rotates angle of the texture in degrees."),
+		::anno::display_name("Texture Rotate"),
+		::anno::in_group("Transform"),
+		::anno::soft_range(0.f, 360.f),
+		::anno::ui_order(32)
+	]],
+	float2 texture_scale = float2(1.0f) [[
+		::anno::description("Larger numbers increase the size."),
+		::anno::display_name("Texture Scale"),
+		::anno::in_group("Transform"),
+		::nvidia::core_definitions::dimension(float2(1.0f, 1.0f)),
+		::preview_scale(3.5f),
+		::anno::ui_order(33)
+	]],
+	uniform int uv_space_index = 0 [[
+		::anno::description("Use selected UV space for the material."),
+		::anno::display_name("UV Space Index"),
+		::anno::in_group("Advanced"),
+		::anno::ui_order(34)
+	]])
+[[
+	::anno::description("A fiberglass material with adjustable imperfections such as bumps, warps and tears."),
+	::anno::display_name("Fiberglass with Imperfections"),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Fiberglass_Imperfections.Fiberglass_Imperfections.png"),
+	::anno::key_words(string[]("fiber", "fiberglass", "artificial", "design", "fabric", "mesh", "woven", "synthetic", "imperfection", "white")),
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Ruediger Raab"),
+	::anno::contributor("Maik Rohland")
+]]
+ = 
+    let {
+		float2 texture_rescale = texture_scale * 0.1f;
+		
+		texture_2d blue_noise_tex = texture_2d("./textures/fiber_blue_noise_placement_512x512.png", ::tex::gamma_linear);
+		texture_2d rough_ao_mask_tex = texture_2d("./textures/fiber_multi_R_rough_G_ao_B_mask.jpg", ::tex::gamma_linear);
+		texture_2d warp_direction_noise_tex = texture_2d("./textures/fiber_warp_direction_noise.jpg", ::tex::gamma_linear);
+		texture_2d warps_tex = texture_2d("./textures/fiberglass_warps.jpg", ::tex::gamma_linear);
+		texture_2d bump_tex = texture_2d("./textures/fiber_bump.jpg", ::tex::gamma_linear);
+		texture_2d tears_tex = texture_2d("./textures/fiber_tears.png", ::tex::gamma_linear);
+		texture_2d fiber_norm_tex = texture_2d("./textures/fiber_norm.jpg", ::tex::gamma_linear);
+		texture_2d waves_norm_tex = texture_2d("./textures/fiber_waves_norm.jpg", ::tex::gamma_linear);
+		texture_2d kernel_tex = texture_2d("./textures/fiber_kernel.jpg", ::tex::gamma_linear);
+		
+        bool tmp0 = false;
+        material_surface tmp1(::df::weighted_layer(diffuse_transmission_weight, ::df::diffuse_transmission_bsdf(nvidia::core_definitions::blend_colors(color(histogram_range(float3(::base::file_texture(rough_ao_mask_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, warped_coordinate(scatter_atlas_grayscale(warps_tex, texture_2d(), blue_noise_tex, 2, 0, 4, deformations_size * 2.f, deformation_intensity, deformation_intensity_variation, 1, 1.f - deformation_probability * 0.100000001f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(deformations_density), float2(1.f), 0.f, 0.25f, deformations_size_variation * 0.600000024f, false, false, 0.f, seed + 11), 0.099999994f, ::base::file_texture(warp_direction_noise_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono * 3.1415f, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 1.f, 0.810000002f)), fiberglass_tint, ::base::color_layer_multiply, 1.f).tint, ""), ::df::custom_curve_layer(specular_weight, 1.f, 5.f, histogram_scan(float3(::base::file_texture(rough_ao_mask_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, warped_coordinate(scatter_atlas_grayscale(warps_tex, texture_2d(), blue_noise_tex, 2, 0, 4, deformations_size * 2.f, deformation_intensity, deformation_intensity_variation, 1, 1.f - deformation_probability * 0.100000001f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(deformations_density), float2(1.f), 0.f, 0.25f, deformations_size_variation * 0.600000024f, false, false, 0.f, seed + 11), 0.099999994f, ::base::file_texture(warp_direction_noise_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono * 3.1415f, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[1], 0.f, 0.469999999f), ::df::microfacet_ggx_smith_bsdf(::math::max(::math::smoothstep(0.790000021f, 0.791000009f, float3(::base::file_texture(rough_ao_mask_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, warped_coordinate(scatter_atlas_grayscale(warps_tex, texture_2d(), blue_noise_tex, 2, 0, 4, deformations_size * 2.f, deformation_intensity, deformation_intensity_variation, 1, 1.f - deformation_probability * 0.100000001f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(deformations_density), float2(1.f), 0.f, 0.25f, deformations_size_variation * 0.600000024f, false, false, 0.f, seed + 11), 0.099999994f, ::base::file_texture(warp_direction_noise_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono * 3.1415f, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2]) * histogram_range(float3(::base::file_texture(rough_ao_mask_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, warped_coordinate(scatter_atlas_grayscale(warps_tex, texture_2d(), blue_noise_tex, 2, 0, 4, deformations_size * 2.f, deformation_intensity, deformation_intensity_variation, 1, 1.f - deformation_probability * 0.100000001f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(deformations_density), float2(1.f), 0.f, 0.25f, deformations_size_variation * 0.600000024f, false, false, 0.f, seed + 11), 0.099999994f, ::base::file_texture(warp_direction_noise_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono * 3.1415f, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 1.f, ::math::lerp(0.389999986f, 0.0799999982f, fibers_shininess)), histogram_range(float3(::base::file_texture(rough_ao_mask_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, warped_coordinate(scatter_atlas_grayscale(warps_tex, texture_2d(), blue_noise_tex, 2, 0, 4, deformations_size * 2.f, deformation_intensity, deformation_intensity_variation, 1, 1.f - deformation_probability * 0.100000001f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(deformations_density), float2(1.f), 0.f, 0.25f, deformations_size_variation * 0.600000024f, false, false, 0.f, seed + 11), 0.099999994f, ::base::file_texture(warp_direction_noise_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono * 3.1415f, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 1.f, ::math::lerp(0.800000012f, 0.5f, fibers_shininess)) * ::math::min(1.f - ::math::smoothstep(0.50999999f, 0.539999962f, float3(::base::file_texture(rough_ao_mask_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, warped_coordinate(scatter_atlas_grayscale(warps_tex, texture_2d(), blue_noise_tex, 2, 0, 4, deformations_size * 2.f, deformation_intensity, deformation_intensity_variation, 1, 1.f - deformation_probability * 0.100000001f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(deformations_density), float2(1.f), 0.f, 0.25f, deformations_size_variation * 0.600000024f, false, false, 0.f, seed + 11), 0.099999994f, ::base::file_texture(warp_direction_noise_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono * 3.1415f, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2]), ::math::smoothstep(0.340000004f, 0.389999986f, float3(::base::file_texture(rough_ao_mask_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, warped_coordinate(scatter_atlas_grayscale(warps_tex, texture_2d(), blue_noise_tex, 2, 0, 4, deformations_size * 2.f, deformation_intensity, deformation_intensity_variation, 1, 1.f - deformation_probability * 0.100000001f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(deformations_density), float2(1.f), 0.f, 0.25f, deformations_size_variation * 0.600000024f, false, false, 0.f, seed + 11), 0.099999994f, ::base::file_texture(warp_direction_noise_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono * 3.1415f, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2]))), ::math::max(::math::smoothstep(0.790000021f, 0.791000009f, float3(::base::file_texture(rough_ao_mask_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, warped_coordinate(scatter_atlas_grayscale(warps_tex, texture_2d(), blue_noise_tex, 2, 0, 4, deformations_size * 2.f, deformation_intensity, deformation_intensity_variation, 1, 1.f - deformation_probability * 0.100000001f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(deformations_density), float2(1.f), 0.f, 0.25f, deformations_size_variation * 0.600000024f, false, false, 0.f, seed + 11), 0.099999994f, ::base::file_texture(warp_direction_noise_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono * 3.1415f, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2]) * histogram_range(float3(::base::file_texture(rough_ao_mask_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, warped_coordinate(scatter_atlas_grayscale(warps_tex, texture_2d(), blue_noise_tex, 2, 0, 4, deformations_size * 2.f, deformation_intensity, deformation_intensity_variation, 1, 1.f - deformation_probability * 0.100000001f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(deformations_density), float2(1.f), 0.f, 0.25f, deformations_size_variation * 0.600000024f, false, false, 0.f, seed + 11), 0.099999994f, ::base::file_texture(warp_direction_noise_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono * 3.1415f, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 1.f, ::math::lerp(0.800000012f, 0.5f, fibers_shininess)), histogram_range(float3(::base::file_texture(rough_ao_mask_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, warped_coordinate(scatter_atlas_grayscale(warps_tex, texture_2d(), blue_noise_tex, 2, 0, 4, deformations_size * 2.f, deformation_intensity, deformation_intensity_variation, 1, 1.f - deformation_probability * 0.100000001f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(deformations_density), float2(1.f), 0.f, 0.25f, deformations_size_variation * 0.600000024f, false, false, 0.f, seed + 11), 0.099999994f, ::base::file_texture(warp_direction_noise_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono * 3.1415f, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 1.f, ::math::lerp(0.389999986f, 0.0799999982f, fibers_shininess)) * ::math::min(1.f - ::math::smoothstep(0.50999999f, 0.539999962f, float3(::base::file_texture(rough_ao_mask_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, warped_coordinate(scatter_atlas_grayscale(warps_tex, texture_2d(), blue_noise_tex, 2, 0, 4, deformations_size * 2.f, deformation_intensity, deformation_intensity_variation, 1, 1.f - deformation_probability * 0.100000001f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(deformations_density), float2(1.f), 0.f, 0.25f, deformations_size_variation * 0.600000024f, false, false, 0.f, seed + 11), 0.099999994f, ::base::file_texture(warp_direction_noise_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono * 3.1415f, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2]), ::math::smoothstep(0.340000004f, 0.389999986f, float3(::base::file_texture(rough_ao_mask_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, warped_coordinate(scatter_atlas_grayscale(warps_tex, texture_2d(), blue_noise_tex, 2, 0, 4, deformations_size * 2.f, deformation_intensity, deformation_intensity_variation, 1, 1.f - deformation_probability * 0.100000001f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(deformations_density), float2(1.f), 0.f, 0.25f, deformations_size_variation * 0.600000024f, false, false, 0.f, seed + 11), 0.099999994f, ::base::file_texture(warp_direction_noise_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono * 3.1415f, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2]))), color(1.f, 1.f, 1.f), ::state::texture_tangent_u(0), ::df::scatter_reflect, ""), ::df::diffuse_reflection_bsdf(nvidia::core_definitions::blend_colors(color(histogram_range(float3(::base::file_texture(rough_ao_mask_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, warped_coordinate(scatter_atlas_grayscale(warps_tex, texture_2d(), blue_noise_tex, 2, 0, 4, deformations_size * 2.f, deformation_intensity, deformation_intensity_variation, 1, 1.f - deformation_probability * 0.100000001f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(deformations_density), float2(1.f), 0.f, 0.25f, deformations_size_variation * 0.600000024f, false, false, 0.f, seed + 11), 0.099999994f, ::base::file_texture(warp_direction_noise_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono * 3.1415f, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[0], 1.f, diffuse_brightness)), fiberglass_tint, ::base::color_layer_multiply, 1.f).tint, 0.f, ""), ::state::normal()), ::state::normal()), material_emission(emission: edf(), intensity: color(0.f, 0.f, 0.f), mode: intensity_radiant_exitance));
+        material_surface tmp2 = material_surface(scattering: bsdf(), emission: material_emission(emission: edf(), intensity: color(0.f, 0.f, 0.f), mode: intensity_radiant_exitance));
+        color tmp3 = color(1.f, 1.f, 1.f);
+        material_volume tmp4 = material_volume(scattering: vdf(), absorption_coefficient: color(0.f, 0.f, 0.f), scattering_coefficient: color(0.f, 0.f, 0.f));
+        material_geometry tmp5(float3(0.f), ::math::min(::math::smoothstep(0.0299999993f, 0.0309999995f, float3(::base::file_texture(rough_ao_mask_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_alpha, warped_coordinate(scatter_atlas_grayscale(warps_tex, texture_2d(), blue_noise_tex, 2, 0, 4, deformations_size * 2.f, deformation_intensity, deformation_intensity_variation, 1, 1.f - deformation_probability * 0.100000001f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(deformations_density), float2(1.f), 0.f, 0.25f, deformations_size_variation * 0.600000024f, false, false, 0.f, seed + 11), 0.099999994f, ::base::file_texture(warp_direction_noise_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono * 3.1415f, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).tint)[2]), 1.f - scatter_atlas_grayscale(tears_tex, texture_2d(), blue_noise_tex, 2, 0, 4, tearings_size * 2.f, 1.f, 0.f, 1, 1.f - tearing_probability * 0.100000001f, true, warped_coordinate(scatter_atlas_grayscale(warps_tex, texture_2d(), blue_noise_tex, 2, 0, 4, deformations_size * 2.f, deformation_intensity, deformation_intensity_variation, 1, 1.f - deformation_probability * 0.100000001f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(deformations_density), float2(1.f), 0.f, 0.25f, deformations_size_variation * 0.600000024f, false, false, 0.f, seed + 11), 0.099999994f, ::base::file_texture(warp_direction_noise_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono * 3.1415f, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index)), float2(tearings_density), float2(1.f), tearings_rotation, tearings_rotation_randomization, tearing_size_variation * 0.600000024f, false, false, 0.f, seed + 10)), add_detail_normal(::base::file_bump_texture(bump_tex, fibers_bump_strength, ::base::mono_average, warped_coordinate(scatter_atlas_grayscale(warps_tex, texture_2d(), blue_noise_tex, 2, 0, 4, deformations_size * 2.f, deformation_intensity, deformation_intensity_variation, 1, 1.f - deformation_probability * 0.100000001f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(deformations_density), float2(1.f), 0.f, 0.25f, deformations_size_variation * 0.600000024f, false, false, 0.f, seed + 11), 0.099999994f, ::base::file_texture(warp_direction_noise_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono * 3.1415f, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, ::state::normal(), false), add_detail_normal(::base::tangent_space_normal_texture(fiber_norm_tex, weaving_bump_strength, false, false, warped_coordinate(scatter_atlas_grayscale(warps_tex, texture_2d(), blue_noise_tex, 2, 0, 4, deformations_size * 2.f, deformation_intensity, deformation_intensity_variation, 1, 1.f - deformation_probability * 0.100000001f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(deformations_density), float2(1.f), 0.f, 0.25f, deformations_size_variation * 0.600000024f, false, false, 0.f, seed + 11), 0.099999994f, ::base::file_texture(warp_direction_noise_tex, color(0.f, 0.f, 0.f), color(1.f, 1.f, 1.f), ::base::mono_average, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false).mono * 3.1415f, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index)), float2(0.f, 1.f), float2(0.f, 1.f), ::tex::wrap_repeat, ::tex::wrap_repeat, false, 1.f, 0.f), normalmap_normal(waves_norm_tex, scatter_grayscale(kernel_tex, texture_2d(), blue_noise_tex, bumps_kernel_size * 3.f, 1.f, bumps_dents_intensity_variation, 3, 1.f - bumps_and_dents_probability * 0.200000003f, true, vmat_transform(texture_translate, texture_rotate, texture_rescale, ::base::texture_coordinate_uvw, uv_space_index), float2(bumps_dents_density), float2(1.f, 0.98999995f), 0.f, 1.f, bumps_dents_size_variation * 0.600000024f, false, false, 0.f, seed) * bumps_dents_intensity, vmat_transform(texture_translate, texture_rotate, texture_rescale * (bumps_waves_size * 3.f + 0.25f), ::base::texture_coordinate_uvw, uv_space_index)))));
+        hair_bsdf tmp6 = hair_bsdf();
+    } in
+        material(
+            thin_walled: tmp0,
+            surface: tmp1,
+            backface: tmp2,
+            ior: tmp3,
+            volume: tmp4,
+            geometry: tmp5,
+            hair: tmp6);
+
+
+
+export material Fiberglass_Bumpy_Imperfections(*)
+[[
+	::anno::description("A fiberglass material with adjustable imperfections such as bumps, warps and tears."),
+	::anno::display_name("Fiberglass with Bumpy Imperfections"),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Fiberglass_Imperfections.Fiberglass_Bumpy_Imperfections.png"),
+	::anno::key_words(string[]("fiber", "fiberglass", "artificial", "design", "fabric", "mesh", "woven", "synthetic", "imperfection", "bumped", "bumpy", "white")),
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Ruediger Raab"),
+	::anno::contributor("Maik Rohland")
+]] = Fiberglass_Imperfections(
+	seed:								14,
+	fibers_shininess:					0.5f,
+	fiberglass_tint:					color(0.812241f, 0.932277f, 0.957370f),
+	weaving_bump_strength:				0.75f,
+	fibers_bump_strength:				1.0f,
+	specular_weight:					1.0f,
+	diffuse_brightness:					0.75f,
+	diffuse_transmission_weight:		0.21f,
+	
+	bumps_and_dents_probability:		0.95f,
+	bumps_dents_density:				5.5f,
+	bumps_kernel_size:					1.0f,
+	bumps_waves_size:					0.7f,
+	bumps_dents_size_variation:			0.9f,
+	bumps_dents_intensity:				1.0f,
+	bumps_dents_intensity_variation:	1.0f,
+	
+	deformation_probability:			0.0f,
+	deformations_density:				5.0f,
+	deformations_size:					1.0f,
+	deformations_size_variation:		0.25f,
+	deformation_intensity:				0.31f,
+	deformation_intensity_variation:	1.0f,
+	
+	tearing_probability:				0.0f,
+	tearings_density:					2.8f,
+	tearings_size:						1.0f,
+	tearing_size_variation:				0.36,
+	tearings_rotation:					0.0f,
+	tearings_rotation_randomization:	0.0f,
+	
+	texture_translate:					float2(0.0f),
+	texture_rotate:						0.0f,
+	texture_scale:						float2(1.0f),
+	uv_space_index:						0
+);
+
+
+
+export material Fiberglass_Torn_Imperfections(*)
+[[
+	::anno::description("A fiberglass material with adjustable imperfections such as bumps, warps and tears."),
+	::anno::display_name("Fiberglass with Torn Imperfections"),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Fiberglass_Imperfections.Fiberglass_Torn_Imperfections.png"),
+	::anno::key_words(string[]("fiber", "fiberglass", "artificial", "design", "fabric", "mesh", "woven", "synthetic", "imperfection", "torn", "white")),
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Ruediger Raab"),
+	::anno::contributor("Maik Rohland")
+]] = Fiberglass_Imperfections(
+	seed:								14,
+	fibers_shininess:					0.5f,
+	fiberglass_tint:					color(0.812241f, 0.932277f, 0.957370f),
+	weaving_bump_strength:				0.75f,
+	fibers_bump_strength:				1.0f,
+	specular_weight:					1.0f,
+	diffuse_brightness:					0.75f,
+	diffuse_transmission_weight:		0.21f,
+	
+	bumps_and_dents_probability:		0.0f,
+	bumps_dents_density:				4.5f,
+	bumps_kernel_size:					1.0f,
+	bumps_waves_size:					0.7f,
+	bumps_dents_size_variation:			0.9f,
+	bumps_dents_intensity:				1.0f,
+	bumps_dents_intensity_variation:	1.0f,
+	
+	deformation_probability:			0.0f,
+	deformations_density:				5.0f,
+	deformations_size:					1.0f,
+	deformations_size_variation:		0.25f,
+	deformation_intensity:				0.31f,
+	deformation_intensity_variation:	1.0f,
+	
+	tearing_probability:				0.47f,
+	tearings_density:					3.15f,
+	tearings_size:						1.0f,
+	tearing_size_variation:				0.36,
+	tearings_rotation:					0.0f,
+	tearings_rotation_randomization:	0.0f,
+	
+	texture_translate:					float2(0.0f),
+	texture_rotate:						0.0f,
+	texture_scale:						float2(1.0f),
+	uv_space_index:						0
+);
+
+
+
+export material Fiberglass_Warped_Imperfections(*)
+[[
+	::anno::description("A fiberglass material with adjustable imperfections such as bumps, warps and tears."),
+	::anno::display_name("Fiberglass with Warped Imperfections"),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Fiberglass_Imperfections.Fiberglass_Warped_Imperfections.png"),
+	::anno::key_words(string[]("fiber", "fiberglass", "artificial", "design", "fabric", "mesh", "woven", "synthetic", "imperfection", "warped", "white")),
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Ruediger Raab"),
+	::anno::contributor("Maik Rohland")
+]] = Fiberglass_Imperfections(
+	seed:								14,
+	fibers_shininess:					0.5f,
+	fiberglass_tint:					color(0.812241f, 0.932277f, 0.957370f),
+	weaving_bump_strength:				0.75f,
+	fibers_bump_strength:				1.0f,
+	specular_weight:					1.0f,
+	diffuse_brightness:					0.75f,
+	diffuse_transmission_weight:		0.21f,
+	
+	bumps_and_dents_probability:		0.0f,
+	bumps_dents_density:				4.5f,
+	bumps_kernel_size:					1.0f,
+	bumps_waves_size:					0.7f,
+	bumps_dents_size_variation:			0.9f,
+	bumps_dents_intensity:				1.0f,
+	bumps_dents_intensity_variation:	1.0f,
+	
+	deformation_probability:			0.84f,
+	deformations_density:				4.89f,
+	deformations_size:					1.0f,
+	deformations_size_variation:		0.25f,
+	deformation_intensity:				0.31f,
+	deformation_intensity_variation:	1.0f,
+	
+	tearing_probability:				0.47f,
+	tearings_density:					3.15f,
+	tearings_size:						1.0f,
+	tearing_size_variation:				0.36,
+	tearings_rotation:					0.0f,
+	tearings_rotation_randomization:	0.0f,
+	
+	texture_translate:					float2(0.0f),
+	texture_rotate:						0.0f,
+	texture_scale:						float2(1.0f),
+	uv_space_index:						0
+);

code/third_party/vMaterials_2/Gems/Alexandrite.mdl

@@ -0,0 +1,102 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::nvidia::core_definitions::flex_material;
+import ::state::normal;
+
+
+const string COPYRIGHT = 
+" Copyright 2024 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 material Alexandrite(
+    uniform color transmission_color = color ( 0.8901961f , 0.509804f , 1.f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color volume_color = color ( 0.2039216f , 0.9137255f , 0.3803922f)
+    [[
+        ::anno::display_name("Volume Color"),
+        ::anno::description("Color effect for volume of the object reached at transmission distance."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity =  1.f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]])
+[[
+    ::anno::display_name("Alexandrite"),
+    ::anno::description("Alexandrite gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Alexandrite.Alexandrite.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "alexandrite", "green"))
+]]= 
+::nvidia::core_definitions::flex_material(
+    base_color:  color ( 1.f , 1.f , 1.f),
+    diffuse_roughness:  0.f,
+    is_metal:  false,
+    reflectivity:  1.f,
+    reflection_roughness:  0.f,
+    anisotropy:  0.f,
+    anisotropy_rotation:  0.f,
+    transparency:  1.f,
+    transmission_color:  transmission_color,
+    volume_color:  volume_color,
+    transmission_roughness:  0.f,
+    base_thickness:  clarity * 0.015f,
+    ior:  1.75f,
+    thin_walled:  false,
+    normal:  ::state::normal ());

code/third_party/vMaterials_2/Gems/Amethyst.mdl

@@ -0,0 +1,136 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::df::*;
+import ::anno::*;
+import ::base::*;
+import ::math::*;
+import ::nvidia::core_definitions::thick_glass;
+import ::state::normal;
+
+const string COPYRIGHT = 
+" Copyright 2024 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 material Amethyst(
+	color transmission_color = color ( 0.9647059f , 0.6862745f , 0.9647059f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color volume_color = color ( 0.427451f , 0.1294118f , 0.4745098f)
+    [[
+        ::anno::display_name("Volume Color"),
+        ::anno::description("Color effect for volume of the object reached at transmission distance."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity =  1.f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform bool dispersion = true
+    [[
+        ::anno::display_name("Dispersion"),
+        ::anno::description("Enable or disable the dispersion."),
+        ::anno::in_group("Advanced")
+    ]]
+)
+[[
+    ::anno::display_name("Amethyst"),
+    ::anno::description("Amethyst gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Amethyst.Amethyst.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "amethyst", "purple"))
+]]
+ = let{
+	 
+	//color transmission_color = color(1.0);
+    color glass_color = volume_color;
+    float roughness = 0.0;
+    float volume_ior = 1.54f;
+    //uniform bool dispersion = true;
+    uniform float abbe_number = 67.82f;
+    uniform float base_thickness = clarity * 0.008f;
+    float3 normal = state::normal();
+	
+    bsdf glossy_bsdf = df::simple_glossy_bsdf(
+        mode: df::scatter_reflect,
+        tint: color(1.),
+        roughness_u: roughness
+    );
+    bsdf glossy_bsdf_transmission = df::simple_glossy_bsdf(
+        mode: df::scatter_transmit,
+        tint: transmission_color,
+        roughness_u: roughness
+    );
+} in material(
+    thin_walled: false,
+    surface: material_surface(
+        df::weighted_layer(
+            normal: normal,
+            weight: 1.,
+            layer: df::color_fresnel_layer(
+                layer: glossy_bsdf,
+                base: glossy_bsdf_transmission,
+               
+                ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
+            )
+        )
+    ),
+    volume: material_volume(
+        absorption_coefficient: (base_thickness <= 0)? color(0): math::log(glass_color) / -base_thickness
+    ),
+    ior: dispersion?base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
+);

code/third_party/vMaterials_2/Gems/Ametrine.mdl

@@ -0,0 +1,161 @@
+/******************************************************************************
+ *		  Copyright 2024 NVIDIA Corporation. All rights reserved.		   *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::base::texture_return;
+import ::nvidia::core_definitions::blend;
+import ::nvidia::core_definitions::flex_material;
+import ::nvidia::core_definitions::flow_noise_texture;
+import ::nvidia::core_definitions::dimension;
+import ::state::normal;
+
+const string COPYRIGHT = 
+" Copyright 2024 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 material Ametrine(
+	uniform color gem_transmission_color= color ( 0.8431373f , 0.6509804f , 0.8666667f)
+	[[
+		::anno::display_name("Gem Transmission Color"),
+		::anno::description("Gem color."),
+		::anno::in_group("Appearance")
+	]],
+	uniform color vein_transmission_color = color ( 1.f , 0.9137255f , 0.5843138f)
+	[[
+		::anno::display_name("Vein Transmission Color"),
+		::anno::description("Vein Color."),
+		::anno::in_group("Appearance")
+	]],
+	uniform color volume_color = color ( 0.9647059f , 0.6431373f , 0.7882353f)
+	[[
+		::anno::display_name("Volume Color"),
+		::anno::description("Color effect for volume of the object reached at transmission distance."),
+		::anno::in_group("Appearance")
+	]],
+	uniform float clarity = 1.f
+	[[
+		::anno::display_name("Clarity"),
+		::anno::description("Use to adapt to size of object."),
+		::anno::soft_range(0.1,10.0),
+		::anno::in_group("Appearance")
+	]],
+	uniform float3 texture_translate  =  float3 ( 0.f)
+	[[
+		::anno::display_name("Translate"),
+		::anno::description("Controls the position of the texture."),
+		::anno::in_group("Transform")
+	]],
+	uniform float3 texture_rotate = float3 ( 0.f)
+	[[
+		::anno::display_name("Rotate"),
+		::anno::description("Rotates angle of the texture in degrees."),
+		::anno::in_group("Transform")
+	]],
+	uniform float texture_scale = 1.f
+	[[
+		::anno::display_name("Scale"),
+		::anno::description("Larger numbers increase the texture size."),
+		::anno::in_group("Transform"),
+		::nvidia::core_definitions::dimension(0.04f)
+	]])
+[[
+	::anno::display_name("Ametrine"),
+	::anno::description("Ametrine gem material (Default values based on 2cm stone size.)"),
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Ametrine.Ametrine.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "Ametrine"))
+]]= 
+::nvidia::core_definitions::blend(
+	base:  ::nvidia::core_definitions::flex_material(
+		base_color:  color ( 0.5f , 0.5f , 0.5f),
+		diffuse_roughness:  0.f,
+		is_metal:  false,
+		reflectivity:  1.f,
+		reflection_roughness:  0.f,
+		anisotropy:  0.f,
+		anisotropy_rotation:  0.f,
+		transparency:  1.f,
+		transmission_color:  gem_transmission_color,
+		volume_color:  volume_color,
+		transmission_roughness:  0.f,
+		base_thickness:  clarity *  0.3f,
+		ior:  1.6f,
+		thin_walled:  false,
+		normal:  ::state::normal ()),
+	blend:  ::nvidia::core_definitions::flex_material(
+		base_color:  color ( 1.f , 1.f , 1.f),
+		diffuse_roughness:  0.f,
+		is_metal:  false,
+		reflectivity:  1.f,
+		reflection_roughness:  0.f,
+		anisotropy:  0.f,
+		anisotropy_rotation:  0.f,
+		transparency:  1.f,
+		transmission_color:  vein_transmission_color,
+		volume_color:  volume_color,
+		transmission_roughness:  0.f,
+		base_thickness:  clarity *  0.2f,
+		ior:  1.6f,
+		thin_walled:  false,
+		normal:  ::state::normal ()),
+	weight:  ::nvidia::core_definitions::flow_noise_texture(
+		color1:  color ( 1.f , 1.f , 1.f),
+		color2:  color ( 0.f , 0.f , 0.f),
+		object_space:  true,
+		texture_space:  0,
+		noise_levels:  3,
+		absolute_noise:  false,
+		phase:  0.f,
+		level_gain:  3.f,
+		level_scale:  1.f,
+		level_progressive_u_scale:  0.3f,
+		level_progressive_v_motion:  0.f,
+		scaling:   float3 ( (2.f / (texture_scale)) * 20.f , 0.f , 0.f),
+		translation:  texture_translate ,
+		rotation:  float3 ( texture_rotate.x + 0.f , texture_rotate.y + 0.f , texture_rotate.z + 45.f)).mono);

code/third_party/vMaterials_2/Gems/Aquamarine.mdl

@@ -0,0 +1,92 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::nvidia::core_definitions::thick_glass;
+import ::state::normal;
+
+const string COPYRIGHT = 
+" Copyright 2024 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 material Aquamarine(
+    color transmission_color = color(0.982251f, 0.982251f, 0.879622f) // vmat 1.7: ( 1.f , 1.f , 0.8823529f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color volume_color = color ( 0.9294118f , 0.972549f , 0.9803922f)
+    [[
+        ::anno::display_name("Volume Color"),
+        ::anno::description("Color effect for volume of the object reached at transmission distance."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity =  1.f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]])
+[[
+    ::anno::display_name("Aquamarine"),
+    ::anno::description("Aquamarine gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Aquamarine.Aquamarine.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "Aquamarine"))
+]]= 
+::nvidia::core_definitions::thick_glass(
+    transmission_color:  transmission_color,
+    glass_color:  volume_color,
+    roughness:  0.003f,
+    ior:  1.57f,
+    base_thickness:  clarity * 0.001f,
+    normal:  ::state::normal ());

code/third_party/vMaterials_2/Gems/Citrine.mdl

@@ -0,0 +1,133 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::base::*;
+import ::math::*;
+import ::state::*;
+import ::df::*;
+import ::nvidia::core_definitions::thick_glass;
+
+const string COPYRIGHT = 
+" Copyright 2024 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 material Citrine(
+    color transmission_color = color (0.982251f, 0.982251f, 0.846873f) //vmat 1.7: ( 1.f , 1.f , 0.8509804f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color volume_color = color ( 1.f , 0.8117647f , 0.4745098f)
+    [[
+        ::anno::display_name("Volume Color"),
+        ::anno::description("Color effect for volume of the object reached at transmission distance."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity =  1.f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform bool dispersion = true
+    [[
+        ::anno::display_name("Dispersion"),
+        ::anno::description("Enable or disable the dispersion."),
+        ::anno::in_group("Advanced")
+    ]]
+
+)
+[[
+    ::anno::display_name("Citrine"),
+    ::anno::description("Citrine gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Citrine.Citrine.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "Citrine", "orange", "warm"))
+]]
+ = let{
+    uniform color glass_color = volume_color;
+    float roughness = 0.003f;
+    uniform float volume_ior = 1.545f;
+    //uniform bool dispersion = true;
+    uniform float abbe_number = 67.82f;
+    uniform float base_thickness = clarity * 0.01f;
+    float3 normal = ::state::normal();
+	
+    bsdf glossy_bsdf = ::df::simple_glossy_bsdf(
+        mode: ::df::scatter_reflect,
+        tint: color(1.),
+        roughness_u: roughness
+    );
+    bsdf glossy_bsdf_transmission = ::df::simple_glossy_bsdf(
+        mode: ::df::scatter_transmit,
+        tint: transmission_color,
+        roughness_u: roughness
+    );
+} in material(
+    thin_walled: false,
+    surface: material_surface(
+        ::df::weighted_layer(
+            normal: normal,
+            weight: 1.,
+            layer: ::df::color_fresnel_layer(
+                layer: glossy_bsdf,
+                base: glossy_bsdf_transmission,
+                ior: dispersion?(::base::abbe_number_ior(volume_ior, abbe_number)):color(volume_ior)
+            )
+        )
+    ),
+    volume: material_volume(
+        absorption_coefficient: (base_thickness <= 0)? color(0): ::math::log(glass_color) / -base_thickness
+    ),
+    ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
+);

code/third_party/vMaterials_2/Gems/Diamond.mdl

@@ -0,0 +1,235 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::df::*;
+import ::base::*;
+import ::math::*;
+import ::nvidia::core_definitions::apply_colorfalloff;
+import ::nvidia::core_definitions::thick_glass;
+import ::state::normal;
+
+const string COPYRIGHT = 
+" Copyright 2024 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";
+
+/*
+bsdf apply_colorfalloff_v2(
+    material base = scratched_metal_v2(metal_color: color(1.)),
+    uniform color color_0 = color(1.,0.,0.),
+    uniform color color_1 = color(0.,1.,0.),
+    uniform color color_2 = color(0.,0.,1.),
+    uniform color color_3 = color(1.,0.,0.),
+    uniform color color_4 = color(0.,1.,0.)
+)
+ =  material(
+    surface: material_surface(
+        scattering: df::measured_curve_factor(
+            curve_values: color[](color_0,color_1,color_2,color_3,color_4),
+            base: base.surface.scattering
+        ),
+        emission: base.surface.emission
+    ),
+    volume: base.volume,
+    ior: base.ior,
+    thin_walled: base.thin_walled,
+    geometry: base.geometry
+);
+
+
+material gem_definition(
+	color transmission_color = color(1.0),
+    uniform color glass_color = color(.95),
+    float roughness = 0.0,
+    uniform float volume_ior = 1.4f,
+    uniform bool dispersion = true,
+    uniform float abbe_number = 1.4f,
+    uniform float base_thickness = .1,
+    float3 normal = ::state::normal()
+)
+[[
+	::anno::hidden()
+]]
+ = let{
+	 
+    bsdf glossy_bsdf = ::df::simple_glossy_bsdf(
+        mode: ::df::scatter_reflect,
+        tint: color(1.),
+        roughness_u: roughness
+    );
+    bsdf glossy_bsdf_transmission = ::df::simple_glossy_bsdf(
+        mode: ::df::scatter_transmit,
+        tint: transmission_color,
+        roughness_u: roughness
+    );
+	
+	bsdf surface_bsdf = ::df::weighted_layer(
+            normal: normal,
+            weight: 1.,
+            layer: ::df::color_fresnel_layer(
+                layer: glossy_bsdf,
+                base: glossy_bsdf_transmission,
+                ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
+            )
+        );
+		
+} in material(
+    thin_walled: false,
+    surface: material_surface(scattering: surface_bsdf ),
+    volume: material_volume(
+        absorption_coefficient: (base_thickness <= 0)? color(0): ::math::log(glass_color) / -base_thickness
+    ),
+    ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
+);
+*/
+
+export material Diamond(
+    color transmission_color = color ( 1.f , 1.f , 1.f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color volume_color = color ( 1.f , 1.f , 1.f)
+    [[
+        ::anno::display_name("Volume Color"),
+        ::anno::description("Color effect for volume of the object reached at transmission distance."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity =  1.f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform bool dispersion = true
+    [[
+        ::anno::display_name("Dispersion"),
+        ::anno::description("Enable or disable the dispersion."),
+        ::anno::in_group("Advanced")
+    ]])
+[[
+    ::anno::display_name("Diamond"),
+    ::anno::description("Diamond gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Diamond.Diamond.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "transparent", "diamond", "purple"))
+]] = 
+let{
+	// Gem definition
+	// uniform color glass_color = color(.95),
+	float roughness = 0.0;
+	float volume_ior = 2.42f;
+	float abbe_number = 55.f;
+	float base_thickness = clarity * 0.1f;
+	// float3 normal = ::state::normal()
+
+	bsdf glossy_bsdf = ::df::simple_glossy_bsdf(
+        mode: ::df::scatter_reflect,
+        tint: color(1.),
+        roughness_u: roughness
+    );
+    bsdf glossy_bsdf_transmission = ::df::simple_glossy_bsdf(
+        mode: ::df::scatter_transmit,
+        tint: transmission_color,
+        roughness_u: roughness
+    );
+	
+	bsdf surface_bsdf = ::df::weighted_layer(
+            //normal: normal, // is state::normal anyways, can be omitted
+            weight: 1.,
+            layer: ::df::color_fresnel_layer(
+                layer: glossy_bsdf,
+                base: glossy_bsdf_transmission,
+                ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
+            )
+    );
+	
+	bsdf falloff_bsdf =  df::measured_curve_factor(
+            curve_values: color[](color( 0.9529412f , 0.972549f , 1.f),
+								color( 1.f , 0.9529412f , 0.9960784f),
+								color( 0.9529412f , 0.9764706f , 1.f),
+								color( 0.9529412f , 1.f , 0.9960784f),
+								color( 1.f , 0.9529412f , 0.9843137f)
+								),
+            base: surface_bsdf
+	);
+	
+
+	// the apply color falloff function does nothing but add a color gradient while keeping the material'sample
+	// other properties
+	
+	/*
+	::nvidia::core_definitions::apply_colorfalloff(
+    base:  gem_definition(
+        transmission_color:  transmission_color, 	// CHECK
+        glass_color:  volume_color,					// CHECK		was modified in the material+_colume expresion	
+        roughness:  0.f,							// CHECK				
+        volume_ior:  2.42F, 						// CHECK
+        dispersion: dispersion,						// CHECK
+        abbe_number: 55.f,							// CHECK
+        base_thickness:  clarity * 0.1f,			// CHECK
+        normal:  ::state::normal ()),				// CHECK
+    color_0:  color( 0.9529412f , 0.972549f , 1.f),	// CHECK
+    color_1:  color( 1.f , 0.9529412f , 0.9960784f),// CHECK
+    color_2:  color( 0.9529412f , 0.9764706f , 1.f),// CHECK
+    color_3:  color( 0.9529412f , 1.f , 0.9960784f),// CHECK
+    color_4:  color( 1.f , 0.9529412f , 0.9843137f));// CHECK
+	*/
+	
+} in material(
+    thin_walled: false,
+    surface: material_surface(scattering: falloff_bsdf ),
+    volume: material_volume(
+        absorption_coefficient: (base_thickness <= 0)? color(0): ::math::log(volume_color) / -base_thickness
+    ),
+    ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
+);
+

code/third_party/vMaterials_2/Gems/Emerald.mdl

@@ -0,0 +1,93 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::nvidia::core_definitions::thick_glass;
+import ::state::normal;
+
+
+const string COPYRIGHT = 
+" Copyright 2024 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 material Emerald(
+    color transmission_color = color(0.456411f, 0.982251f, 0.982251f) // vmat 1.7: ( 0.4627451f , 1.f , 1.f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color volume_color = color ( 0.01960784f , 0.3176471f , 0.1058824f)
+    [[
+        ::anno::display_name("Volume Color"),
+        ::anno::description("Color effect for volume of the object reached at transmission distance."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity =  1.f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]])
+[[
+	::anno::display_name("Emerald"),
+    ::anno::description("Emerald gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Emerald.Emerald.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "emerald", "green"))
+]]= 
+::nvidia::core_definitions::thick_glass(
+    transmission_color:  transmission_color,
+    glass_color:  volume_color,
+    roughness:  0.06f,
+    ior:  1.58f,
+    base_thickness:  clarity * 0.015f,
+    normal:  ::state::normal ());

code/third_party/vMaterials_2/Gems/Garnet.mdl

@@ -0,0 +1,147 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::df::*;
+import ::math::*;
+import ::base::*;
+import ::nvidia::core_definitions::thick_glass;
+import ::state::normal;
+
+const string COPYRIGHT = 
+" Copyright 2024 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";
+
+
+material gem_definition(
+	color transmission_color = color(1.0),
+    uniform color glass_color = color(.95),
+    float roughness = 0.0,
+    uniform float volume_ior = 1.4f,
+    uniform bool dispersion = true,
+    uniform float abbe_number = 1.4f,
+    uniform float base_thickness = .1,
+    float3 normal = ::state::normal()
+)
+[[
+	::anno::hidden()
+]]
+ = let{ 
+
+    bsdf glossy_bsdf = ::df::simple_glossy_bsdf(
+        mode: ::df::scatter_reflect,
+        tint: color(1.),
+        roughness_u: roughness
+    );
+    bsdf glossy_bsdf_transmission = ::df::simple_glossy_bsdf(
+        mode: ::df::scatter_transmit,
+        tint: transmission_color,
+        roughness_u: roughness
+    );
+} in material(
+    thin_walled: false,
+    surface: material_surface(
+        ::df::weighted_layer(
+            normal: normal,
+            weight: 1.,
+            layer: ::df::color_fresnel_layer(
+                layer: glossy_bsdf,
+                base: glossy_bsdf_transmission,
+                ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
+            )
+        )
+    ),
+    volume: material_volume(
+        absorption_coefficient: (base_thickness <= 0)? color(0): ::math::log(glass_color) / -base_thickness
+    ),
+    ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
+);
+
+
+export material Garnet(
+    color transmission_color = color(0.982251f, 0.428690f, 0.116971f) //vmat 1.7: ( 1.f , 0.4392157f , 0.1176471f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color volume_color = color ( 0.3098039f , 0.003921569f , 0.003921569f)
+    [[
+        ::anno::display_name("Volume Color"),
+        ::anno::description("Color effect for volume of the object reached at transmission distance."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity =  1.0f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("UUse to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform bool dispersion = true
+    [[
+        ::anno::display_name("Dispersion"),
+        ::anno::description("Enable or disable the dispersion."),
+        ::anno::in_group("Advanced")
+    ]])
+[[
+	::anno::display_name("Garnet"),
+    ::anno::description("Garnet gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Garnet.Garnet.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "garnet", "red", "warm", "dark"))
+]]= gem_definition(
+    transmission_color:  transmission_color,
+    glass_color:  volume_color,
+    roughness:  0.03f,
+    volume_ior:  1.91f, 
+    dispersion: dispersion,
+    abbe_number: 52.57f,
+    base_thickness:  clarity * 0.01f,
+    normal:  ::state::normal ());

code/third_party/vMaterials_2/Gems/Iolite.mdl

@@ -0,0 +1,91 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::nvidia::core_definitions::thick_glass;
+import ::state::normal;
+
+const string COPYRIGHT = 
+" Copyright 2024 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 material Iolite(
+    color transmission_color = color ( 0.6117647f , 0.6117647f , 1.f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color volume_color = color ( 0.2392157f , 0.172549f , 0.5843138f)
+    [[
+        ::anno::display_name("Volume Color"),
+        ::anno::description("Color effect for volume of the object reached at transmission distance."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity =  1.f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]])
+[[
+	::anno::display_name("Iolite"),
+    ::anno::description("Iolite gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Iolite.Iolite.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "iolite", "blue", "cool"))
+]]= 
+::nvidia::core_definitions::thick_glass(
+    transmission_color:  transmission_color,
+    glass_color:  volume_color,
+    roughness:  0.02f,
+    ior:  1.59f,
+    base_thickness:  clarity * 0.03f,
+    normal:  ::state::normal ());

code/third_party/vMaterials_2/Gems/Jade.mdl

@@ -0,0 +1,133 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::base::texture_return;
+import ::nvidia::core_definitions::perlin_noise_texture;
+import ::state::normal;
+import ::nvidia::core_definitions::thick_translucent;
+import ::nvidia::core_definitions::dimension;
+
+const string COPYRIGHT = 
+" Copyright 2024 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 material Jade(
+    color transmission_color1 = color ( 0.8352941f , 0.8431373f , 0.6039216f)
+    [[
+        ::anno::display_name("Transmission Color 1"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    color transmission_color2 = color ( 0.4392157f , 0.6509804f , 0.282353f)
+    [[
+        ::anno::display_name("Transmission Color 2"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color volume_color = color ( 0.3488667f , 0.4877647f , 0.3940823f)
+    [[
+        ::anno::display_name("Volume Color"),
+        ::anno::description("Color effect for volume of the object reached at transmission distance."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity = 1.f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float3 texture_translate  =  float3 ( 0.f)
+    [[
+        ::anno::display_name("Translate"),
+        ::anno::description("Controls the position of the texture."),
+        ::anno::in_group("Transform")
+    ]],
+    uniform float3 texture_rotate = float3 ( 0.f)
+    [[
+        ::anno::display_name("Rotate"),
+        ::anno::description("Rotates angle of the texture in degrees."),
+        ::anno::in_group("Transform")
+    ]],
+    uniform float3 texture_scale = float3 ( 1.f)
+    [[
+        ::anno::display_name("Scale"),
+        ::anno::description("Larger numbers increase the texture size."),
+        ::anno::in_group("Transform"),
+		::nvidia::core_definitions::dimension(float3(1.0f, 1.0f, 1.0f))
+    ]])
+[[
+	::anno::display_name("Jade"),
+    ::anno::description("Jade gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Jade.Jade.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "jade", "green"))
+]]= 
+::nvidia::core_definitions::thick_translucent(
+    transmission_color:  ::nvidia::core_definitions::perlin_noise_texture(
+        color1:  transmission_color1,
+        color2:  transmission_color2,
+        object_space:  true,
+        noise_levels:  3,
+        absolute_noise:  true,
+        noise_threshold_high:  0.5f,
+        noise_threshold_low:  0.f,
+        scaling:  float3 ( (1.f / texture_scale.x) * 400.f , (1.f / texture_scale.y) * 400.f , (1.f / texture_scale.z) * 380.f),
+        translation:  texture_translate ,
+        rotation:  texture_rotate + float3 ( 0.f, 0.f, 0.f),
+        texture_space:  0).tint,
+    volume_color:  volume_color,
+    volume_scattering:  0.98f,
+    roughness:  0.1f,
+    reflectivity:  0.85f,
+    base_thickness:  clarity * 0.01f,
+    normal:  ::state::normal (),
+    ior:  1.61f);

code/third_party/vMaterials_2/Gems/Morganite.mdl

@@ -0,0 +1,91 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::nvidia::core_definitions::thick_glass;
+import ::state::normal;
+
+const string COPYRIGHT = 
+" Copyright 2024 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 material Morganite(
+    color transmission_color = color(0.982251f, 0.955973f, 0.791298f) // vmat 1.7: ( 1.f , 0.9647059f , 0.8039216f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color volume_color = color(0.982251f, 0.768151f, 0.846873f) // vmat 1.7: ( 1.f , 0.7882353f , 0.8666667f)
+    [[
+        ::anno::display_name("Volume Color"),
+        ::anno::description("Color effect for volume of the object reached at transmission distance."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity =  1.0f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]])
+[[
+	::anno::display_name("Morganite"),
+    ::anno::description("Morganite gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Morganite.Morganite.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "morganite", "purple"))
+]]= 
+::nvidia::core_definitions::thick_glass(
+    transmission_color:  transmission_color,
+    glass_color:  volume_color,
+    roughness:  0.003f,
+    ior:  1.595f,
+    base_thickness:  clarity * 0.01f,
+    normal:  ::state::normal ());

code/third_party/vMaterials_2/Gems/Onyx.mdl

@@ -0,0 +1,157 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::base::color_layer_mode;
+import ::base::texture_return;
+import ::nvidia::core_definitions::blend_colors;
+import ::nvidia::core_definitions::checker_texture;
+import ::nvidia::core_definitions::flow_noise_texture;
+import ::nvidia::core_definitions::thick_translucent;
+import ::nvidia::core_definitions::dimension;
+import ::state::normal;
+
+const string COPYRIGHT = 
+" Copyright 2024 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 material Onyx(
+    color transmission_color = color ( 0.001f , 0.001f , 0.001f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    color striation_color1 = color ( 0.3058824f , 0.3019608f , 0.345098f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    color striation_color2 = color ( 0.1215686f , 0.08235294f , 0.05882353f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity =  1.f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float3 texture_translate  =  float3 ( 0.f)
+    [[
+        ::anno::display_name("Translate"),
+        ::anno::description("Controls the position of the texture."),
+        ::anno::in_group("Transform")
+    ]],
+    uniform float3 texture_rotate = float3 ( 0.f)
+    [[
+        ::anno::display_name("Rotate"),
+        ::anno::description("Rotates angle of the texture in degrees."),
+        ::anno::in_group("Transform")
+    ]],
+    uniform float texture_scale = 1.f
+    [[
+        ::anno::display_name("Scale"),
+        ::anno::description("Larger numbers increase the texture size."),
+        ::anno::in_group("Transform"),
+		::nvidia::core_definitions::dimension(float(0.03f))
+    ]],
+    uniform int uv_space_index = 0
+    [[
+        ::anno::display_name("UV Space Index"),
+        ::anno::description("UV space index."),
+        ::anno::hard_range(0,3),
+        ::anno::in_group("Advanced")
+    ]])
+[[
+	::anno::display_name("Onyx"),
+    ::anno::description("Onyx gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Onyx.Onyx.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "onyx", "black", "dark"))
+]]= 
+::nvidia::core_definitions::thick_translucent(
+    transmission_color:  ::nvidia::core_definitions::blend_colors(
+        color_1:  transmission_color,
+        color_2:  ::nvidia::core_definitions::flow_noise_texture(
+            color1:  striation_color1,
+            color2:  striation_color2,
+            object_space:  false,
+            texture_space:  0,
+            noise_levels:  3,
+            absolute_noise:  false,
+            phase:  0.f,
+            level_gain:  3.f,
+            level_scale:  2.5f,
+            level_progressive_u_scale:  0.f,
+            level_progressive_v_motion:  0.f,
+            scaling:    float3 ( 0.f, (1.f / texture_scale) * 7.f, 0.f),
+            translation:  texture_translate ,
+            rotation:  float3 ( texture_rotate.x + 45.f , texture_rotate.y + 90.f , texture_rotate.z + 0.f)).tint,
+        mode:  ::base::color_layer_blend,
+        weight:  ::nvidia::core_definitions::checker_texture(
+            color1:  color ( 0.f , 0.f , 0.f),
+            color2:  color ( 1.f , 1.f , 1.f),
+            scaling:  float3 ( 0.f , (1.f / texture_scale), 0.f),
+            translation:  texture_translate ,
+            object_space:  false,
+            blur:  0.f,
+            rotation:  float3 ( texture_rotate.x + 45.f , texture_rotate.y + 90.f , texture_rotate.z + 0.f),
+            texture_space:  uv_space_index).mono).tint,
+    volume_color:  color ( 0.95f , 0.95f , 0.95f),
+    volume_scattering:  0.3f,
+    roughness:  0.05f,
+    reflectivity:  1.f,
+    base_thickness:  clarity * 0.0001f,
+    normal:  ::state::normal (),
+    ior:  1.486f);

code/third_party/vMaterials_2/Gems/Pearl.mdl

@@ -0,0 +1,121 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::nvidia::core_definitions::apply_clearcoat;
+import ::nvidia::core_definitions::apply_colorfalloff;
+import ::nvidia::core_definitions::blend;
+import ::nvidia::core_definitions::flex_material;
+import ::state::normal;
+
+const string COPYRIGHT = 
+" Copyright 2024 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 material Pearl(
+    uniform color diffuse =  color ( 0.8509804f , 0.7960784f , 0.7215686f)
+    [[
+        ::anno::display_name("Color"),
+        ::anno::description("Base color of the pearl."),
+        ::anno::in_group("Appearance")
+    ]])
+[[
+	::anno::display_name("Pearl"),
+    ::anno::description("Pearl gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Pearl.Pearl.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "pearl", "pink", "light"))
+]]= 
+::nvidia::core_definitions::apply_clearcoat(
+    base:  ::nvidia::core_definitions::blend(
+        base:  ::nvidia::core_definitions::flex_material(
+            base_color:  diffuse,
+            diffuse_roughness:  0.2f,
+            is_metal:  false,
+            reflectivity:  0.7f,
+            reflection_roughness:  0.07f,
+            anisotropy:  0.f,
+            anisotropy_rotation:  0.f,
+            transparency:  0.f,
+            transmission_color:  color ( 1.f , 1.f , 1.f),
+            volume_color:  color ( 1.f , 1.f , 1.f),
+            transmission_roughness:  0.f,
+            base_thickness:  0.1f,
+            ior:  1.5f,
+            thin_walled:  false,
+            normal:  ::state::normal ()),
+        blend:  ::nvidia::core_definitions::apply_colorfalloff(
+            base:  ::nvidia::core_definitions::flex_material(
+                base_color:  diffuse,
+                diffuse_roughness:  0.2f,
+                is_metal:  false,
+                reflectivity:  0.7f,
+                reflection_roughness:  0.07f,
+                anisotropy:  0.f,
+                anisotropy_rotation:  0.f,
+                transparency:  0.f,
+                transmission_color:  color ( 1.f , 1.f , 1.f),
+                volume_color:  color ( 1.f , 1.f , 1.f),
+                transmission_roughness:  0.f,
+                base_thickness:  0.1f,
+                ior:  1.5f,
+                thin_walled:  false,
+                normal:  ::state::normal ()),
+            color_0:  color ( 0.4392157f , 0.3372549f , 0.1411765f),
+            color_1:  color ( 0.8039216f , 0.8509804f , 1.f),
+            color_2:  color ( 1.f , 0.7294118f , 0.9882353f),
+            color_3:  color ( 1.f , 0.5333334f , 0.9568627f),
+            color_4:  color ( 1.f , 0.7333333f , 0.1647059f)),
+        weight:  0.6f),
+    ior:  1.6f,
+    roughness:  0.1f,
+    visibility:  1.f,
+    normal:  ::state::normal (),
+    coat_filter_color:  color ( 1.f , 1.f , 1.f));

code/third_party/vMaterials_2/Gems/Peridot.mdl

@@ -0,0 +1,91 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::nvidia::core_definitions::thick_glass;
+import ::state::normal;
+
+const string COPYRIGHT = 
+" Copyright 2024 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 material Peridot(
+    color transmission_color = color ( 0.9647059f , 1.f , 0.509804f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color volume_color = color ( 0.5529412f , 0.6862745f , 0.1843137f)
+    [[
+        ::anno::display_name("Volume Color"),
+        ::anno::description("Color effect for volume of the object reached at transmission distance."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity =  1.f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]])
+[[
+	::anno::display_name("Peridot"),
+    ::anno::description("Peridot gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Peridot.Peridot.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "peridot", "green"))
+]]= 
+::nvidia::core_definitions::thick_glass(
+    transmission_color:  transmission_color,
+    glass_color:  volume_color,
+    roughness:  0.02f,
+    ior:  1.59f,
+    base_thickness:  clarity * 0.01f,
+    normal:  ::state::normal ());

code/third_party/vMaterials_2/Gems/Ruby.mdl

@@ -0,0 +1,146 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::df::*;
+import ::base::*;
+import ::math::*;
+import ::nvidia::core_definitions::thick_glass;
+import ::state::normal;
+
+const string COPYRIGHT = 
+" Copyright 2024 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";
+
+material gem_definition(
+	color transmission_color = color(1.0),
+    uniform color glass_color = color(.95),
+    float roughness = 0.0,
+    uniform float volume_ior = 1.4f,
+    uniform bool dispersion = true,
+    uniform float abbe_number = 1.4f,
+    uniform float base_thickness = .1,
+    float3 normal = ::state::normal()
+)
+[[
+	::anno::hidden()
+]]
+ = let{
+	 
+    bsdf glossy_bsdf = ::df::simple_glossy_bsdf(
+        mode: ::df::scatter_reflect,
+        tint: color(1.),
+        roughness_u: roughness
+    );
+    bsdf glossy_bsdf_transmission = ::df::simple_glossy_bsdf(
+        mode: ::df::scatter_transmit,
+        tint: transmission_color,
+        roughness_u: roughness
+    );
+} in material(
+    thin_walled: false,
+    surface: material_surface(
+        ::df::weighted_layer(
+            normal: normal,
+            weight: 1.,
+            layer: ::df::color_fresnel_layer(
+                layer: glossy_bsdf,
+                base: glossy_bsdf_transmission,
+                ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
+            )
+        )
+    ),
+    volume: material_volume(
+        absorption_coefficient: (base_thickness <= 0)? color(0): ::math::log(glass_color) / -base_thickness
+    ),
+    ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
+);
+
+
+export material Ruby(
+    color transmission_color = color ( 1.f , 0.3294118f , 0.8196079f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color volume_color = color ( 0.2666667f , 0.007843138f , 0.01568628f)
+    [[
+        ::anno::display_name("Volume Color"),
+        ::anno::description("Color effect for volume of the object reached at transmission distance."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity =  1.f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform bool dispersion = true
+    [[
+        ::anno::display_name("Dispersion"),
+        ::anno::description("Enable or disable the dispersion."),
+        ::anno::in_group("Advanced")
+    ]])
+[[
+	::anno::display_name("Ruby"),
+    ::anno::description("Ruby gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Ruby.Ruby.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "ruby", "red", "warm"))
+]]= gem_definition(
+        transmission_color:  transmission_color,
+        glass_color:  volume_color,
+        roughness:  0.06f,
+        volume_ior:  1.78f, 
+        dispersion: dispersion,
+        abbe_number: 72.2f,
+        base_thickness:  clarity * 0.03f,
+        normal:  ::state::normal ());

code/third_party/vMaterials_2/Gems/Sapphire.mdl

@@ -0,0 +1,148 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::math::*;
+import ::base::*;
+import ::df::*;
+import ::nvidia::core_definitions::flex_material;
+import ::state::normal;
+
+
+const string COPYRIGHT = 
+" Copyright 2024 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";
+
+
+material gem_definition(
+	color transmission_color = color(1.0),
+    uniform color glass_color = color(.95),
+    float roughness = 0.0,
+    uniform float volume_ior = 1.4f,
+    uniform bool dispersion = true,
+    uniform float abbe_number = 1.4f,
+    uniform float base_thickness = .1,
+    float3 normal = ::state::normal()
+)
+[[
+	::anno::hidden()
+]]
+ = let{
+	 
+    bsdf glossy_bsdf = ::df::simple_glossy_bsdf(
+        mode: ::df::scatter_reflect,
+        tint: color(1.),
+        roughness_u: roughness
+    );
+    bsdf glossy_bsdf_transmission = ::df::simple_glossy_bsdf(
+        mode: ::df::scatter_transmit,
+        tint: transmission_color,
+        roughness_u: roughness
+    );
+} in material(
+    thin_walled: false,
+    surface: material_surface(
+        ::df::weighted_layer(
+            normal: normal,
+            weight: 1.,
+            layer: ::df::color_fresnel_layer(
+                layer: glossy_bsdf,
+                base: glossy_bsdf_transmission,
+                ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
+            )
+        )
+    ),
+    volume: material_volume(
+        absorption_coefficient: (base_thickness <= 0)? color(0): ::math::log(glass_color) / -base_thickness
+    ),
+    ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
+);
+
+
+export material Sapphire(
+    uniform color transmission_color = color ( 0.509804f , 0.427451f , 0.8196079f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color volume_color = color ( 0.001f , 0.03137255f , 0.2392157f)
+    [[
+        ::anno::display_name("Volume Color"),
+        ::anno::description("Color effect for volume of the object reached at transmission distance."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity = 1.f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform bool dispersion = true
+    [[
+        ::anno::display_name("Dispersion"),
+        ::anno::description("Enable or disable the dispersion."),
+        ::anno::in_group("Advanced")
+    ]])
+[[
+	::anno::display_name("Sapphire"),
+    ::anno::description("Sapphire gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Sapphire.Sapphire.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "sapphire", "blue", "cool", "dark"))
+]] = gem_definition(
+    transmission_color:  transmission_color,
+    glass_color:  volume_color,
+    roughness:  0.f,
+    volume_ior:  1.76f, 
+    dispersion: dispersion,
+    abbe_number: 72.2f,
+    base_thickness:  clarity * 0.1f,
+    normal:  ::state::normal ());

code/third_party/vMaterials_2/Gems/Tanzanite.mdl

@@ -0,0 +1,94 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::df::*;
+import ::base::*;
+import ::math::*;
+import ::nvidia::core_definitions::thick_glass;
+import ::state::normal;
+
+const string COPYRIGHT = 
+" Copyright 2024 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 material Tanzanite(
+    color transmission_color = color ( 0.7215686f , 0.4392157f , 0.8823529f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color volume_color = color ( 0.01960784f , 0.02745098f , 0.1921569f)
+    [[
+        ::anno::display_name("Volume Color"),
+        ::anno::description("Color effect for volume of the object reached at transmission distance."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity =  1.f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]])
+[[
+    ::anno::display_name("Tanzanite"),
+    ::anno::description("Tanzanite gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Tanzanite.Tanzanite.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "tanzanite", "purple"))
+]]= 
+::nvidia::core_definitions::thick_glass(
+    transmission_color:  transmission_color,
+    glass_color:  volume_color,
+    roughness:  0.f,
+    ior:  1.7f,
+    base_thickness:  clarity * 0.015f,
+    normal:  ::state::normal ());

code/third_party/vMaterials_2/Gems/Topaz.mdl

@@ -0,0 +1,145 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::df::*;
+import ::base::*;
+import ::math::*;
+import ::nvidia::core_definitions::thick_glass;
+import ::state::normal;
+
+const string COPYRIGHT = 
+" Copyright 2024 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";
+
+material gem_definition(
+	color transmission_color = color(1.0),
+    uniform color glass_color = color(.95),
+    float roughness = 0.0,
+    uniform float volume_ior = 1.4f,
+    uniform bool dispersion = true,
+    uniform float abbe_number = 1.4f,
+    uniform float base_thickness = .1,
+    float3 normal = ::state::normal()
+)
+[[
+	::anno::hidden()
+]]
+ = let{
+
+    bsdf glossy_bsdf = ::df::simple_glossy_bsdf(
+        mode: ::df::scatter_reflect,
+        tint: color(1.),
+        roughness_u: roughness
+    );
+    bsdf glossy_bsdf_transmission = ::df::simple_glossy_bsdf(
+        mode: ::df::scatter_transmit,
+        tint: transmission_color,
+        roughness_u: roughness
+    );
+} in material(
+    thin_walled: false,
+    surface: material_surface(
+        ::df::weighted_layer(
+            normal: normal,
+            weight: 1.,
+            layer: ::df::color_fresnel_layer(
+                layer: glossy_bsdf,
+                base: glossy_bsdf_transmission,
+                ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
+            )
+        )
+    ),
+    volume: material_volume(
+        absorption_coefficient: (base_thickness <= 0)? color(0): ::math::log(glass_color) / -base_thickness
+    ),
+    ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
+);
+
+export material Topaz(
+    color transmission_color = color ( 1.f , 1.f , 1.f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color volume_color = color ( 0.8823529f , 0.6117647f , 0.2117647f)
+    [[
+        ::anno::display_name("Volume Color"),
+        ::anno::description("Color effect for volume of the object reached at transmission distance."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity =  1.f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform bool dispersion = true
+    [[
+        ::anno::display_name("Dispersion"),
+        ::anno::description("Enable or disable the dispersion."),
+        ::anno::in_group("Advanced")
+    ]])
+[[
+    ::anno::display_name("Topaz"),
+    ::anno::description("Topaz gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Topaz.Topaz.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "topaz", "purple"))
+]] = gem_definition(
+        transmission_color:  transmission_color,
+        glass_color:  volume_color,
+        roughness:  0.f,
+        volume_ior:  1.63f, 
+        dispersion: dispersion,
+        abbe_number: 33.54f,
+        base_thickness:  clarity * 0.005f,
+        normal:  ::state::normal());

code/third_party/vMaterials_2/Gems/Tourmaline.mdl

@@ -0,0 +1,181 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::anno::*;
+import ::base::*;
+import ::nvidia::core_definitions::*;
+import ::state::normal;
+
+const string COPYRIGHT = 
+" Copyright 2024 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 material Tourmaline(
+    uniform color transmission_color1 = color ( .987f , 0.282353f , 0.282353f)
+    [[
+        ::anno::display_name("Transmission Color 1"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color transmission_color2 = color ( 1.f , 1.f , 1.f)
+    [[
+        ::anno::display_name("Transmission Color 2"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color transmission_color3 = color ( 0.172549f , 0.427451f , 0.06666667f)
+    [[
+        ::anno::display_name("Transmission Color 3"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity = 1.f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float3 texture_translate  = float3( 0.f)
+    [[
+        ::anno::display_name("Translate"),
+        ::anno::description("Controls the position of the texture."),
+        ::anno::in_group("Transform")
+    ]],
+    uniform float3 texture_rotate = float3(45.0f, 36.0f, 45.0f)
+    [[
+        ::anno::display_name("Rotate"),
+        ::anno::description("Rotates angle of the texture in degrees."),
+        ::anno::in_group("Transform")
+    ]],
+    uniform float texture_scale = 1.f
+    [[
+        ::anno::display_name("Scale"),
+        ::anno::description("Larger numbers increase the texture size."),
+        ::anno::in_group("Transform"),
+		::nvidia::core_definitions::dimension(float2(1.0f))
+    ]])
+[[
+    ::anno::display_name("Tourmaline"),
+    ::anno::description("Tourmaline gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Tourmaline.Tourmaline.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "tourmaline", "red", "green", "multicolor"))
+]]= 
+::nvidia::core_definitions::blend(
+    base:  ::nvidia::core_definitions::flex_material(
+        base_color:  transmission_color1,
+        diffuse_roughness:  0.f,
+        is_metal:  false,
+        reflectivity:  1.f,
+        reflection_roughness:  0.f,
+        anisotropy:  0.f,
+        anisotropy_rotation:  0.f,
+        transparency:  0.7f,
+        transmission_color:  transmission_color1,
+        volume_color:  transmission_color1,
+        transmission_roughness:  0.05f,
+        base_thickness:  clarity *  0.8f,
+        ior:  1.6f,
+        thin_walled:  false,
+        normal:  ::state::normal ()),
+    blend:  ::nvidia::core_definitions::blend(
+        base:  ::nvidia::core_definitions::flex_material(
+            base_color:  transmission_color2,
+            diffuse_roughness:  0.8f,
+            is_metal:  false,
+            reflectivity:  1.f,
+            reflection_roughness:  0.f,
+            anisotropy:  0.f,
+            anisotropy_rotation:  0.f,
+            transparency:  0.6f,
+            transmission_color:  transmission_color2,
+            volume_color:  transmission_color2,
+            transmission_roughness:  0.01f,
+            base_thickness:  clarity *  1.f,
+            ior:  1.6f,
+            thin_walled:  false,
+            normal:  ::state::normal ()),
+        blend:  ::nvidia::core_definitions::thick_glass(
+            transmission_color:  transmission_color3,
+            glass_color:  transmission_color3,
+            roughness:  0.f,
+            ior:  1.6f,
+            base_thickness:  clarity *  0.1f,
+            normal:  ::state::normal ()),
+        weight:  ::nvidia::core_definitions::flow_noise_texture(
+            color1:  color ( 1.f , 1.f , 1.f),
+            color2:  color ( 0.f , 0.f , 0.f),
+            object_space:  true,
+            texture_space:  0,
+            noise_levels:  2,
+            absolute_noise:  false,
+            phase:  0.f,
+            level_gain:  20.f,
+            level_scale:  10.f,
+            level_progressive_u_scale:  1.f,
+            level_progressive_v_motion:  0.f,
+            scaling:    float3 ( (10.f / texture_scale) * 5.f , 0.f , 0.f),
+            translation:  float3 ( texture_translate .x + 0.095f , texture_translate .y + 0.f , texture_translate .z + 0.f),
+            rotation:  float3 ( texture_rotate.x + 0.f , texture_rotate.y + 90.f , texture_rotate.z + 0.f)).mono),
+    weight:  ::nvidia::core_definitions::flow_noise_texture(
+        color1:  color ( 1.f , 1.f , 1.f),
+        color2:  color ( 0.f , 0.f , 0.f),
+        object_space:  true,
+        texture_space:  0,
+        noise_levels:  2,
+        absolute_noise:  false,
+        phase:  0.f,
+        level_gain:  20.f,
+        level_scale:  10.f,
+        level_progressive_u_scale:  1.f,
+        level_progressive_v_motion:  0.f,
+        scaling:  float3 ( (10.f / texture_scale) * 5.f , 0.f , 0.f),
+        translation:  float3 ( texture_translate .x + 0.1f , texture_translate .y + 0.f , texture_translate .z + 0.f),
+        rotation:  float3 ( texture_rotate.x + 0.f , texture_rotate.y + 90.f , texture_rotate.z + 0.f)).mono);

code/third_party/vMaterials_2/Gems/Turquoise.mdl

@@ -0,0 +1,719 @@
+/******************************************************************************
+<<<<<<< .mine
+ *	 Copyright 2024 NVIDIA Corporation.  All rights reserved.	 *
+||||||| .r374748
+ *          Copyright 2023 NVIDIA Corporation. All rights reserved.           *
+=======
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+>>>>>>> .r376783
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+
+mdl 1.7;
+
+import ::anno::*;
+import ::base::*;
+import ::df::*;
+import ::math::*;
+import ::state::*;
+import ::tex::*;
+import ::nvidia::core_definitions::*;
+
+const string COPYRIGHT = 
+" Copyright 2024 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";
+
+
+enum unit_scale{
+	unit_mm = 1,
+	unit_cm = 2,
+	unit_m = 3
+};
+
+float histogram_range(float input, float range = 1.0f, float position = 0.5f)
+{	
+	float low = ::math::clamp(1.0 - ::math::min(((1.0 - position) + range * 0.5), (1.0 - position) * 2), 0.0, 1.0);
+	float high = ::math::clamp(math::min((position + range * 0.5 ), position * 2.0), 0.0, 1.0);
+	return ::math::lerp(low, high, input);
+}
+
+float remap_xy_to_0_1(float input, float x, float y)
+{
+	return (input - x)/(y - x);
+}
+
+float histogram_scan_small(float input, float width, float position)
+{	
+	return ::math::clamp(
+				remap_xy_to_0_1(input,
+								position * (1.0f - width), // special case of ::math::lerp(0.0, 1.0 - width, position),
+								::math::lerp(width, 1.0 , position)),
+				0.0,
+				1.0);
+}
+
+struct volume_info{
+	color absorption_coefficient;
+	color scattering_coefficient;
+};
+
+
+volume_info volume_transmittance_albedo(
+	float density_scale = 1.0,
+	color transmittance = color(0.5f), // transmittance color after unit distance
+	color albedo = color(1.0f)
+)
+[[
+	anno::noinline()
+]]
+{
+	color sigma_t = -math::log(math::saturate(transmittance)) * density_scale;
+	color sigma_s = sigma_t * ::math::saturate(albedo);
+	return volume_info(
+		scattering_coefficient: sigma_s,
+		absorption_coefficient: sigma_t - sigma_s);
+}
+
+volume_info custom_volume_transmittance(
+	unit_scale unit_scale_select = unit_mm,
+	float absorption_thickness = 3.0f,
+	color transmittance = color(0.5f),
+	color albedo = color(0.0f)
+)
+{
+	absorption_thickness = (absorption_thickness <= 0.0f) ? 0.00001 : absorption_thickness;
+	float scalefactor;
+	switch(unit_scale_select){
+		case unit_mm: scalefactor = 0.001f; break;
+		case unit_cm: scalefactor = 0.01f; break;
+		case unit_m: scalefactor = 1.0f; break;
+		default: scalefactor = 1.0f;
+	}
+	
+	
+	
+	volume_info vol_coefficients = volume_transmittance_albedo(
+												density_scale: 1.0f/(absorption_thickness * scalefactor),
+												transmittance: transmittance,
+												albedo: albedo
+	);
+	
+	return vol_coefficients;
+}
+
+float3 rgb2hsl(float3 c)
+[[
+	::anno::description("Converts a color value to HSL. The function outputs the hue to \n"
+						"lie in the range from 0.0-1.0."),
+	::anno::author("NVIDIA vMaterials")
+]]
+{
+	float3 hsl;
+	float cMax = ::math::max(::math::max(c.x, c.y), c.z);
+	float cMin = ::math::min(::math::min(c.x, c.y), c.z);
+	float delta = cMax - cMin;
+	
+	hsl.z = (cMax + cMin) / 2.0;	
+	hsl.x = ((cMax == cMin) ? 0 :
+		(cMax == c.x) ? (c.y - c.z) / delta + ((c.z > c.y) ? 6.0f : 0.0f):
+		(cMax == c.y) ? (c.z - c.x) / delta + 2.0 : (c.x - c.y) / delta + 4.0) / 6.0f;
+	hsl.y = (hsl.z == 0.0 || hsl.z == 1.0) ? 0.0 : delta / (1.0 - ::math::abs(2.0 * hsl.z - 1.0));
+	return hsl;
+}
+
+
+// converts a HSL value back to a color
+// The Hue is expected to lie in the range 
+float f_n(float n, float a,  float h, float l) {
+	float k = ::math::fmod(n + h * 12.f, 12.f);
+	
+	return l - a * ::math::max(-1.0f, ::math::min(::math::min(k-3.0f, 9.0f-k), 1.0f));
+}
+
+color hsl2rgb(float3 hsl)
+[[
+	::anno::description("Converts a HSL value back to a color. Note that the hue is expected to \n"
+						"lie in the range from 0.0-1.0."),
+	::anno::author("NVIDIA vMaterials")
+]]
+{
+	float h = hsl.x, s = hsl.y, l = hsl.z;
+	float a = s * ::math::min(l, 1.0f - l);
+	return color(f_n(0.0, a, h, l),
+				f_n(8.0, a, h, l),
+				f_n(4.0, a, h, l));	
+}
+
+struct vm_coordinates{
+	float2 uv;			// UV coordinates stored as a simple float2
+	float rotation;		// The rotation is stored in radiands (not degress), to convert use ((rotation* 3.1415926535897932384626433832f) / 180.f)
+	int uv_space_index;	// The UV space Index from which the UV data came from
+	float4 carry;		// may carry additional data, such as random IDs
+};
+
+struct vm_3float{
+	float x;
+	float y;
+	float z;
+};
+
+enum vm_mono_select 
+[[
+	anno::description("Modes for the creation of a gray-scale value from a color."),
+	anno::hidden()
+]]
+{
+	mono_r = 0,
+	mono_g = 1,
+	mono_b = 2,
+	mono_a = 3,
+	mono_average = 4
+};
+
+vm_coordinates vm_coord
+(
+	float2 translation	= float2(0.0f, 0.0) [[
+		::anno::display_name("Translation"),
+		::anno::description("Translates the coordinates.")
+	]],
+	float rotation 		= 0.0f [[
+		::anno::display_name("Rotation"),
+		::anno::description("Rotates the coordinates in degrees.")
+	]],
+	float2 scaling		= float2(1.0f, 1.0f) [[
+		::anno::display_name("Scaling"),
+		::anno::description("Scales the coordinates.")
+	]],	
+	uniform int uv_space = 0 [[
+		::anno::display_name("UV Space"),
+		::anno::description("Chose the UV space.")
+	]]
+)
+[[
+		::anno::display_name("vm Transform"),
+		::anno::description("Generates coordinates to be used in vm_lookup functions.")
+]]
+{
+	vm_coordinates uv;
+	::base::texture_coordinate_info info = ::base::coordinate_source( ::base::texture_coordinate_uvw, uv_space);
+	uv.rotation = (rotation * 3.1415926535897932384626433832f) / 180.f;
+	uv.uv = float2(info.position.x, info.position.y);
+	float sine   = ::math::sin(uv.rotation);
+	float cosine = ::math::cos(uv.rotation);
+	float2x2 rot = float2x2(cosine, -sine, sine, cosine);
+	uv.uv = rot * uv.uv;
+	uv.uv /= scaling;
+	uv.uv += translation;
+	// Translation before or after rotation?
+	return uv;
+}
+
+vm_coordinates vm_coord_post_rotate(
+	vm_coordinates uv = vm_coord()  [[
+		::anno::display_name("VM Coordinates"),
+		::anno::description("A set of vm coordinates.")
+	]],
+	float rotation = 0.0f  [[
+		::anno::display_name("Rotation"),
+		::anno::description("Rotates the coordinates in degrees.")
+	]]
+)
+{
+	float rot_rad = (rotation * 3.1415926535897932384626433832f) / 180.f; // track rotation
+	float sine   = ::math::sin(rot_rad);
+	float cosine = ::math::cos(rot_rad);
+	float2x2 rot = float2x2(cosine, -sine, sine, cosine);
+	
+	uv.rotation += rot_rad;
+	uv.uv = rot * uv.uv;
+	return uv;
+}
+
+
+
+vm_coordinates vm_coord_post_scale(
+	vm_coordinates uv = vm_coord(),
+	float2 scale = float2(1.0f)
+)
+{
+	uv.uv /= scale;
+	return uv;
+}
+
+::base::texture_return vm_tex_lookup(
+	uniform texture_2d tex,
+	vm_coordinates uv = vm_coord(),
+	uniform vm_mono_select mono_source = mono_a,
+	float4 scale = float4(1.0f))
+{
+	float mono;
+	float4 lookup = ::tex::lookup_float4(tex, uv.uv, ::tex::wrap_repeat, ::tex::wrap_repeat) * scale;
+	switch( mono_source ) {
+		case mono_r: mono = lookup.x;
+			break;
+		case mono_g: mono = lookup.y;
+			break;
+		case mono_b: mono = lookup.z;
+			break;
+		case mono_a: mono = lookup.w;
+			break;
+		case mono_average: mono = ::math::average(float3(lookup.x, lookup.y, lookup.z));
+			break;
+	}
+	return ::base::texture_return(color(lookup.x, lookup.y, lookup.z), mono);
+}
+
+vm_3float vm_tex_lookup_3float(
+	uniform texture_2d tex,
+	vm_coordinates uv = vm_coord(),
+	float3 scale = float3(1.0f))
+{
+	vm_3float ret;
+	float3 lookup = ::tex::lookup_float3(tex, uv.uv, ::tex::wrap_repeat, ::tex::wrap_repeat) * scale;
+	ret.x = lookup.x;
+	ret.y = lookup.y;
+	ret.z = lookup.z;
+	return ret;
+}
+
+float3 vm_tex_normal_lookup_2x(
+	uniform texture_2d tex_a,
+	uniform texture_2d tex_b,
+	vm_coordinates uv_a = vm_coord(),
+	vm_coordinates uv_b = vm_coord(),
+	float strength_a = 1.0f,
+	float strength_b = 1.0f,
+	bool use_coord_a_only = false	// when set to 'false, tex_b share coordinates from 'uv_a'
+)
+{
+	float rot_a = uv_a.rotation;
+	float rot_b = use_coord_a_only ? uv_a.rotation : uv_b.rotation;
+	uv_b.uv = use_coord_a_only ? uv_a.uv : uv_b.uv;
+	
+	// Lookup and convert normal textures a and b to -1 ... 1 range
+	float3 norm_a = (::tex::lookup_float3(tex_a, uv_a.uv, ::tex::wrap_repeat, ::tex::wrap_repeat) - float3(.5f)) * 2.0f;
+	norm_a = ::math::normalize(norm_a * float3(strength_a, strength_a, 1.0));
+	float3 norm_b = (::tex::lookup_float3(tex_b, uv_b.uv, ::tex::wrap_repeat, ::tex::wrap_repeat) - float3(.5f)) * 2.0f;
+	norm_b = ::math::normalize(norm_b * float3(strength_b, strength_b, 1.0));
+	
+	// if any rotation happened prior to the lookup, compensate for it
+	norm_a = float3(::math::cos(rot_a) * norm_a.x - ::math::sin(rot_a) * norm_a.y,
+					::math::sin(rot_a) * norm_a.x + ::math::cos(rot_a) * norm_a.y,
+					norm_a.z);
+	norm_b = float3(::math::cos(rot_b) * norm_b.x - ::math::sin(rot_b) * norm_b.y,
+					::math::sin(rot_b) * norm_b.x + ::math::cos(rot_b) * norm_b.y,
+					norm_b.z);
+	
+	// http://blog.selfshadow.com/publications/blending-in-detail/
+	norm_a=norm_a + float3(0.,0.,1.);
+	norm_b = norm_b *  float3(-1.,-1.,1.);
+	float3 norm = norm_a*math::dot(norm_a, norm_b)/norm_a.z - norm_b;
+	
+	return norm.x * ::state::texture_tangent_u(uv_a.uv_space_index) +
+			norm.y * ::state::texture_tangent_v(uv_a.uv_space_index) +
+			norm.z * ::state::normal();
+}
+
+
+//
+export material Turquoise(
+    color transmission_color = color (0.296138f, 1.000000f, 0.904661) //( 0.2392157f , 0.8039216f , 0.7294118f)
+    [[
+        ::anno::display_name("Transmission Color"),
+        ::anno::description("Color effect for transmission independent of thickness of the object."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color volume_color = color(0.009721f, 0.693872f, 0.693872f)  //( 0.001f , 0.01188235f , 0.01188235f)
+    [[
+        ::anno::display_name("Volume Color"),
+        ::anno::description("Color effect for volume of the object reached at transmission distance."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color crack_color = color(0.023153f, 0.011612f, 0.001f) // ( 0.02352941f , 0.01176471f , 0.f)
+    [[
+        ::anno::display_name("Crack Color"),
+        ::anno::description("Color of cracks."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform color flake_color = color (1.000000f, 0.527115f, 0.001f) //( 1.f , 0.5294118f , 0.f)
+    [[
+        ::anno::display_name("Flake Color"),
+        ::anno::description("Color of flakes."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity =  .15f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of object."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float flake_size = 1.f
+    [[
+        ::anno::display_name("Flake Size"),
+        ::anno::description("Determines size of flakes (in mm)."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float flake_amount = 1.f
+    [[
+        ::anno::display_name("Flake Amount"),
+        ::anno::description("Determines amount of visible flakes."),
+        ::anno::soft_range(0.0,1.0),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform texture_2d crack_texture =  texture_2d ( "./textures/turquoise_crack_msk.png" , ::tex::gamma_srgb)
+    [[
+        ::anno::display_name("Crack Texture"),
+        ::anno::description("Attach map of cracks here."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float3 texture_translate  =  float3 ( 0.f)
+    [[
+        ::anno::display_name("Translate"),
+        ::anno::description("Controls the position of the texture."),
+        ::anno::in_group("Transform")
+    ]],
+    uniform float texture_rotate = 0.f
+    [[
+        ::anno::display_name("Rotate"),
+        ::anno::description("Rotate angle in degrees."),
+        ::anno::in_group("Transform")
+    ]],
+    uniform float2 texture_scale =  float2 ( 1.f)
+    [[
+        ::anno::display_name("Scale"),
+        ::anno::description("Larger numbers increase the texture size."),
+        ::anno::in_group("Transform"),
+		::nvidia::core_definitions::dimension(float2(1.0f, 1.0f))
+    ]],
+    uniform int uv_space_index = 0
+    [[
+        ::anno::display_name("UV Space Index"),
+        ::anno::description("UV space index."),
+        ::anno::hard_range(0,3),
+        ::anno::in_group("Advanced")
+    ]])
+[[
+    ::anno::display_name("Turquoise"),
+    ::anno::description("Turquoise gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Turquoise.Turquoise.png"),
+	::anno::hidden(),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "turquoise", "cool"))
+]]= 
+::nvidia::core_definitions::add_globalbump(
+    base:  ::nvidia::core_definitions::blend(
+        base:  ::nvidia::core_definitions::thick_translucent(
+            transmission_color:  ::nvidia::core_definitions::perlin_noise_texture(
+                color1:  transmission_color,
+                color2:  color ( 1.f , 1.f , 1.f),
+                object_space:  true,
+                noise_levels:  3,
+                absolute_noise:  false,
+                noise_threshold_high:  1.f,
+                noise_threshold_low:  0.f,
+                scaling:  float3 ( 300.f , 300.f , 300.f),
+                translation:  texture_translate,
+                rotation:   float3 (texture_rotate,texture_rotate,texture_rotate),
+                texture_space:  uv_space_index).tint,
+            volume_color:  volume_color,
+            volume_scattering:  0.99999f,
+            roughness:  0.f,
+            reflectivity:  1.f,
+            base_thickness:  clarity * 0.1f,
+            normal:  ::state::normal (),
+            ior:  1.65f),
+        blend:  ::nvidia::core_definitions::apply_metallicflakes(
+            base:  ::nvidia::core_definitions::flex_material(
+                base_color:  crack_color,
+                diffuse_roughness:  0.f,
+                is_metal:  false,
+                reflectivity:  0.3f,
+                reflection_roughness:  0.2f,
+                anisotropy:  0.f,
+                anisotropy_rotation:  0.f,
+                transparency:  0.f,
+                transmission_color:  color ( 1.f , 1.f , 1.f),
+                volume_color:  color ( 1.f , 1.f , 1.f),
+                transmission_roughness:  0.f,
+                base_thickness:  clarity * 0.1f,
+                ior:  1.5f,
+                thin_walled:  false,
+                normal:  ::state::normal ()),
+            flake_color:  flake_color,
+            roughness:  0.f,
+            size:  flake_size *  0.1f,
+            amount:  flake_amount *  0.15f,
+            opacity:  0.5f,
+            bump:  1.f),
+        weight:  ::nvidia::core_definitions::file_texture(
+            texture:  crack_texture,
+            mono_source:  ::base::mono_average,
+            brightness:  1.f,
+            contrast:  1.f,
+            scaling:  1.f / texture_scale,
+            translation:   float2 (texture_translate.x, texture_translate.y) ,
+            rotation:  texture_rotate,
+            clip:  false,
+            texture_space:  uv_space_index,
+            invert:  false).mono),
+    normal:  ::nvidia::core_definitions::file_bump_texture(
+        texture:  crack_texture,
+        bump_source:  ::base::mono_luminance,
+        scaling:  1.f / texture_scale,
+        translation:   float2 (texture_translate.x, texture_translate.y) ,
+        rotation:  texture_rotate,
+        clip:  false,
+        factor:  -0.2f,
+        texture_space:  uv_space_index));
+
+
+export material Turquoise_Mineral(
+	float turquoise_tint = 1.0f [[
+		::anno::description("Adjusts the color of the mineral from greenish to blueish."),
+		::anno::display_name("Tint"),
+		::anno::in_group("Appearance"),
+		::anno::soft_range(0.f, 1.f),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(0)
+	]],
+	float diffuse_brightness = 0.6f [[
+		::anno::description("Adjusts the lightness of the material."),
+		::anno::display_name("Brightness"),
+		::anno::in_group("Appearance"),
+		::anno::soft_range(0.f, 1.f),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(1)
+	]],
+	float polishing_roughness = 0.26f [[
+		::anno::description("Higher roughness values lead to bigger highlights and blurrier reflections."),
+		::anno::display_name("Roughness"),
+		::anno::in_group("Appearance"),
+		::anno::soft_range(0.f, 1.f),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(2)
+	]],
+	color veins_color = color(0.158961f, 0.090842f, 0.017642f) [[
+		::anno::description("Adjusts the color of the veins."),
+		::anno::display_name("Vein Color"),
+		::anno::in_group("Appearance"),
+		::anno::ui_order(3)
+	]],
+	float veins_big_amount = 1.f [[
+		::anno::description("Controls the visibility of the large veins in the material."),
+		::anno::display_name("Large Veins"),
+		::anno::in_group("Appearance"),
+		::anno::soft_range(0.f, 1.f),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(4)
+	]],
+	float veins_small_amount = 0.52f [[
+		::anno::description("Controls the visibility of the small veins in the material."),
+		::anno::display_name("Small Veins"),
+		::anno::in_group("Appearance"),
+		::anno::soft_range(0.f, 1.f),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(5)
+	]],
+	float veins_breakup = 0.f [[
+		::anno::description("Breaks up the veins, so that they appear and disappear at different positions through the material."),
+		::anno::display_name("Veins Breakup"),
+		::anno::in_group("Appearance"),
+		::anno::soft_range(0.f, 1.f),
+		::anno::hard_range(0.f, 1.f),
+		::anno::ui_order(6)
+	]],
+	float veins_bump_strength = 0.03f [[
+		::anno::description("Controls the strength of the veins that appear on the mineral surface."),
+		::anno::display_name("Veins Bump Strength"),
+		::anno::in_group("Appearance"),
+		::anno::soft_range(0.f, 1.f),
+		::anno::hard_range(0.f, 2.f),
+		::anno::ui_order(7)
+	]],
+	float2 texture_translate = float2(0.0f, 0.0f) [[
+		::anno::description("Controls the position of the texture."),
+		::anno::display_name("Texture Translate"),
+		::anno::in_group("Transform"),
+		::anno::ui_order(8)
+	]],
+	float texture_rotate = 0.f [[
+		::anno::description("Rotates angle of the texture in degrees."),
+		::anno::display_name("Texture Rotate"),
+		::anno::in_group("Transform"),
+		::anno::soft_range(0.f, 360.f),
+		::anno::ui_order(9)
+	]],
+	float2 texture_scale = float2(1.0f) [[
+		::anno::description("Larger numbers increase the size."),
+		::anno::display_name("Texture Scale"),
+		::anno::in_group("Transform"),
+		::nvidia::core_definitions::dimension(float2(0.04f, 0.04f)),
+		::anno::ui_order(10)
+	]],
+	uniform int uv_space_index = 0 [[
+		::anno::description("Uses selected UV space for material."),
+		::anno::display_name("UV Space Index"),
+		::anno::in_group("Transform"),
+		::anno::ui_order(11)
+	]],
+	uniform bool roundcorners_enable = false [[
+		::anno::description("Enables the round corner effect. Comes at a slight performance cost as additional raytracing calls are required to evaluate the round corner effect."),
+		::anno::display_name("Enable Round Corners"),
+		::anno::in_group("Round Corners"),
+		::anno::ui_order(12)
+	]],
+	uniform float roundcorners_radius_mm = 1.0f [[
+		::anno::description("Radius of the rounded corners in millimeters."),
+		::anno::display_name("Round Corner Radius (mm)"),
+		::anno::in_group("Round Corners"),
+		::anno::soft_range(0.f, 10.f),
+		::anno::ui_order(13)
+	]],
+	uniform bool roundcorners_across_materials = false [[
+		::anno::description("Applies the round corner effect across different materials when enabled."),
+		::anno::display_name("Across Materials"),
+		::anno::in_group("Round Corners."),
+		::anno::ui_order(14)
+	]])
+[[
+	::anno::display_name("Turquoise - Sky Blue"),
+	::anno::description("Turquoise gem material with adjustable color hue and veins."),
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Turquoise.Turquoise_Mineral.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "SSS", "transmissive", "new", "design", "turquoise", "blue", "cool", "saturated"))
+]]
+ = 
+	let {
+		bool tmp0 = false;
+		
+		texture_2d multi_rough_tex = texture_2d("./textures/turquoise_multi_rough.jpg", ::tex::gamma_linear);
+		texture_2d veins_tex	   = texture_2d("./textures/turquoise_veins.jpg", ::tex::gamma_linear);
+		texture_2d breakup_tex	   = texture_2d("./textures/turquoise_breakup_noise.png", ::tex::gamma_linear);
+		texture_2d diff_lin_tex	   = texture_2d("./textures/turquoise_diffuse.jpg", ::tex::gamma_linear);
+		texture_2d norm_tex		= texture_2d("./textures/turquoise_cracks_norm2.jpg", ::tex::gamma_linear);
+		
+		
+		material_surface tmp1(::df::custom_curve_layer(0.0399999991f, 1.f, 5.f, 1.f, ::df::microfacet_ggx_smith_bsdf(::math::lerp(histogram_range(vm_tex_lookup_3float(multi_rough_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float3(1.f)).x * 0.620000005f + vm_tex_lookup_3float(multi_rough_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float3(1.f)).y, 0.75999999f, polishing_roughness * 0.5f), ::math::lerp(histogram_range(vm_tex_lookup_3float(multi_rough_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float3(1.f)).x * 0.620000005f + vm_tex_lookup_3float(multi_rough_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float3(1.f)).y, 0.75999999f, polishing_roughness * 0.5f), 0.75f, histogram_scan_small(nvidia::core_definitions::blend_colors(nvidia::core_definitions::blend_colors(vm_tex_lookup(veins_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(veins_big_amount)).tint, vm_tex_lookup(breakup_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(1.f)).tint, ::base::color_layer_multiply, veins_breakup, true).tint, nvidia::core_definitions::blend_colors(vm_tex_lookup(veins_tex, vm_coord_post_scale(vm_coord_post_rotate(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), 0.74000001f), float2(0.5f)), mono_a, float4(veins_small_amount)).tint, vm_tex_lookup(breakup_tex, vm_coord_post_scale(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float2(0.5f)), mono_a, float4(1.f)).tint, ::base::color_layer_multiply, veins_breakup, true).tint, ::base::color_layer_screen, 1.f, true).mono, 0.620000005f, 0.119999997f)), veins_bump_strength) * ::math::lerp(histogram_range(vm_tex_lookup_3float(multi_rough_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float3(1.f)).x * 0.620000005f + vm_tex_lookup_3float(multi_rough_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float3(1.f)).y, 0.75999999f, polishing_roughness * 0.5f), ::math::lerp(histogram_range(vm_tex_lookup_3float(multi_rough_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float3(1.f)).x * 0.620000005f + vm_tex_lookup_3float(multi_rough_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float3(1.f)).y, 0.75999999f, polishing_roughness * 0.5f), 0.75f, histogram_scan_small(nvidia::core_definitions::blend_colors(nvidia::core_definitions::blend_colors(vm_tex_lookup(veins_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(veins_big_amount)).tint, vm_tex_lookup(breakup_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(1.f)).tint, ::base::color_layer_multiply, veins_breakup, true).tint, nvidia::core_definitions::blend_colors(vm_tex_lookup(veins_tex, vm_coord_post_scale(vm_coord_post_rotate(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), 0.74000001f), float2(0.5f)), mono_a, float4(veins_small_amount)).tint, vm_tex_lookup(breakup_tex, vm_coord_post_scale(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float2(0.5f)), mono_a, float4(1.f)).tint, ::base::color_layer_multiply, veins_breakup, true).tint, ::base::color_layer_screen, 1.f, true).mono, 0.620000005f, 0.119999997f)), veins_bump_strength), ::math::lerp(histogram_range(vm_tex_lookup_3float(multi_rough_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float3(1.f)).x * 0.620000005f + vm_tex_lookup_3float(multi_rough_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float3(1.f)).y, 0.75999999f, polishing_roughness * 0.5f), ::math::lerp(histogram_range(vm_tex_lookup_3float(multi_rough_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float3(1.f)).x * 0.620000005f + vm_tex_lookup_3float(multi_rough_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float3(1.f)).y, 0.75999999f, polishing_roughness * 0.5f), 0.75f, histogram_scan_small(nvidia::core_definitions::blend_colors(nvidia::core_definitions::blend_colors(vm_tex_lookup(veins_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(veins_big_amount)).tint, vm_tex_lookup(breakup_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(1.f)).tint, ::base::color_layer_multiply, veins_breakup, true).tint, nvidia::core_definitions::blend_colors(vm_tex_lookup(veins_tex, vm_coord_post_scale(vm_coord_post_rotate(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), 0.74000001f), float2(0.5f)), mono_a, float4(veins_small_amount)).tint, vm_tex_lookup(breakup_tex, vm_coord_post_scale(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float2(0.5f)), mono_a, float4(1.f)).tint, ::base::color_layer_multiply, veins_breakup, true).tint, ::base::color_layer_screen, 1.f, true).mono, 0.620000005f, 0.119999997f)), veins_bump_strength) * ::math::lerp(histogram_range(vm_tex_lookup_3float(multi_rough_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float3(1.f)).x * 0.620000005f + vm_tex_lookup_3float(multi_rough_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float3(1.f)).y, 0.75999999f, polishing_roughness * 0.5f), ::math::lerp(histogram_range(vm_tex_lookup_3float(multi_rough_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float3(1.f)).x * 0.620000005f + vm_tex_lookup_3float(multi_rough_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float3(1.f)).y, 0.75999999f, polishing_roughness * 0.5f), 0.75f, histogram_scan_small(nvidia::core_definitions::blend_colors(nvidia::core_definitions::blend_colors(vm_tex_lookup(veins_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(veins_big_amount)).tint, vm_tex_lookup(breakup_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(1.f)).tint, ::base::color_layer_multiply, veins_breakup, true).tint, nvidia::core_definitions::blend_colors(vm_tex_lookup(veins_tex, vm_coord_post_scale(vm_coord_post_rotate(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), 0.74000001f), float2(0.5f)), mono_a, float4(veins_small_amount)).tint, vm_tex_lookup(breakup_tex, vm_coord_post_scale(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float2(0.5f)), mono_a, float4(1.f)).tint, ::base::color_layer_multiply, veins_breakup, true).tint, ::base::color_layer_screen, 1.f, true).mono, 0.620000005f, 0.119999997f)), veins_bump_strength), color(1.f, 1.f, 1.f), color(0.f, 0.f, 0.f), ::state::texture_tangent_u(0), ::df::scatter_reflect), ::df::weighted_layer(0.589999974f, ::df::diffuse_reflection_bsdf(::math::pow(nvidia::core_definitions::blend_colors(hsl2rgb(rgb2hsl(float3(vm_tex_lookup(diff_lin_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(1.f)).tint)) + float3((turquoise_tint - 1.f) * 0.159999996f, 0.f, 0.f)), veins_color, ::base::color_layer_blend, nvidia::core_definitions::blend_colors(nvidia::core_definitions::blend_colors(vm_tex_lookup(veins_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(veins_big_amount)).tint, vm_tex_lookup(breakup_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(1.f)).tint, ::base::color_layer_multiply, veins_breakup, true).tint, nvidia::core_definitions::blend_colors(vm_tex_lookup(veins_tex, vm_coord_post_scale(vm_coord_post_rotate(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), 0.74000001f), float2(0.5f)), mono_a, float4(veins_small_amount)).tint, vm_tex_lookup(breakup_tex, vm_coord_post_scale(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float2(0.5f)), mono_a, float4(1.f)).tint, ::base::color_layer_multiply, veins_breakup, true).tint, ::base::color_layer_screen, 1.f, true).mono, true).tint, diffuse_brightness * -2.5999999f + 3.79999995f), 0.f), ::df::weighted_layer(1.f, ::df::diffuse_transmission_bsdf(color(0.768150985f, 0.944563985f, 1.f)), bsdf(), vm_tex_normal_lookup_2x(norm_tex, norm_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), vm_coord_post_scale(vm_coord_post_rotate(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), 0.74000001f), float2(0.5f)), nvidia::core_definitions::blend_colors(vm_tex_lookup(veins_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(veins_big_amount)).tint, vm_tex_lookup(breakup_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(1.f)).tint, ::base::color_layer_multiply, veins_breakup, true).mono * (veins_bump_strength * 10.f), nvidia::core_definitions::blend_colors(vm_tex_lookup(veins_tex, vm_coord_post_scale(vm_coord_post_rotate(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), 0.74000001f), float2(0.5f)), mono_a, float4(veins_small_amount)).tint, vm_tex_lookup(breakup_tex, vm_coord_post_scale(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float2(0.5f)), mono_a, float4(1.f)).tint, ::base::color_layer_multiply, veins_breakup, true).mono * (veins_bump_strength * 10.f), false)), vm_tex_normal_lookup_2x(norm_tex, norm_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), vm_coord_post_scale(vm_coord_post_rotate(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), 0.74000001f), float2(0.5f)), nvidia::core_definitions::blend_colors(vm_tex_lookup(veins_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(veins_big_amount)).tint, vm_tex_lookup(breakup_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(1.f)).tint, ::base::color_layer_multiply, veins_breakup, true).mono * (veins_bump_strength * 10.f), nvidia::core_definitions::blend_colors(vm_tex_lookup(veins_tex, vm_coord_post_scale(vm_coord_post_rotate(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), 0.74000001f), float2(0.5f)), mono_a, float4(veins_small_amount)).tint, vm_tex_lookup(breakup_tex, vm_coord_post_scale(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float2(0.5f)), mono_a, float4(1.f)).tint, ::base::color_layer_multiply, veins_breakup, true).mono * (veins_bump_strength * 10.f), false)), vm_tex_normal_lookup_2x(norm_tex, norm_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), vm_coord_post_scale(vm_coord_post_rotate(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), 0.74000001f), float2(0.5f)), nvidia::core_definitions::blend_colors(vm_tex_lookup(veins_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(veins_big_amount)).tint, vm_tex_lookup(breakup_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(1.f)).tint, ::base::color_layer_multiply, veins_breakup, true).mono * (veins_bump_strength * 10.f), nvidia::core_definitions::blend_colors(vm_tex_lookup(veins_tex, vm_coord_post_scale(vm_coord_post_rotate(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), 0.74000001f), float2(0.5f)), mono_a, float4(veins_small_amount)).tint, vm_tex_lookup(breakup_tex, vm_coord_post_scale(vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), float2(0.5f)), mono_a, float4(1.f)).tint, ::base::color_layer_multiply, veins_breakup, true).mono * (veins_bump_strength * 10.f), false)), material_emission(emission: edf(), intensity: color(0.f, 0.f, 0.f), mode: intensity_radiant_exitance));
+		material_surface tmp2 = material_surface(scattering: bsdf(), emission: material_emission(emission: edf(), intensity: color(0.f, 0.f, 0.f), mode: intensity_radiant_exitance));
+		color tmp3 = color(1.f, 1.f, 1.f);
+		material_volume tmp4(
+			vdf(),
+			custom_volume_transmittance(unit_cm, 3.f, color(0.0331959985f, 0.0975869969f, 0.0886309966f), hsl2rgb(rgb2hsl(float3(vm_tex_lookup(diff_lin_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(1.f)).tint)) + float3((turquoise_tint - 1.f) * 0.159999996f, 0.f, 0.f))).absorption_coefficient,
+			custom_volume_transmittance(unit_cm, 3.f, color(0.0331959985f, 0.0975869969f, 0.0886309966f), hsl2rgb(rgb2hsl(float3(vm_tex_lookup(diff_lin_tex, vm_coord(texture_translate, texture_rotate, texture_scale, uv_space_index), mono_a, float4(1.f)).tint)) + float3((turquoise_tint - 1.f) * 0.159999996f, 0.f, 0.f))).scattering_coefficient,
+			color(0.f, 0.f, 0.f));
+		material_geometry tmp5(float3(0.f), 1.f, roundcorners_enable ? ::state::rounded_corner_normal(roundcorners_radius_mm * 0.00100000005f, roundcorners_across_materials, 1.f) : ::state::normal());
+	} in
+		material(
+			thin_walled: tmp0,
+			surface: tmp1,
+			backface: tmp2,
+			ior: tmp3,
+			volume: tmp4,
+			geometry: tmp5);
+
+
+// 2  
+export material Turquoise_Blueish_Green(*)
+[[
+	::anno::display_name("Turquoise - Medium Blue"),
+	::anno::description("Turquoise gem material with adjustable color hue and veins."),
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Turquoise.Turquoise_Blueish_Green.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "SSS", "transmissive", "new", "design", "bumped", "turquoise", "medium", "blue", "cool", "saturated"))
+]] = Turquoise_Mineral(
+	turquoise_tint:				0.66f,
+	diffuse_brightness:			0.6f,
+	polishing_roughness:		0.35f,
+	veins_color:				color(0.158961f, 0.090842f, 0.017642f),
+	veins_big_amount:			1.0f,
+	veins_small_amount:			0.81f,
+	veins_breakup:				0.5f,
+	veins_bump_strength:		1.0f,
+	texture_translate:			float2(0.0f),
+	texture_rotate:				0.0f,
+	texture_scale:				float2(1.0f),
+	uv_space_index:				0,
+	roundcorners_enable:		false,
+	roundcorners_radius_mm:		1.0f,
+	roundcorners_across_materials: false
+);
+
+
+// 3
+export material Turquoise_Apple_Green(*)
+[[
+	::anno::display_name("Turquoise - Apple Green"),
+	::anno::description("Turquoise gem material with adjustable color hue and veins."),
+	::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+	::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Turquoise.Turquoise_Apple_Green.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "SSS", "transmissive", "new", "design", "bumped", "rough", "turquoise", "blue", "apple", "green", "cool", "saturated"))
+]] = Turquoise_Mineral(
+	turquoise_tint:				0.0f,
+	diffuse_brightness:			0.6f,
+	polishing_roughness:		0.79f,
+	veins_color:				color(0.158961f, 0.090842f, 0.017642f),
+	veins_big_amount:			1.0f,
+	veins_small_amount:			0.81f,
+	veins_breakup:				0.5f,
+	veins_bump_strength:		1.0f,
+	texture_translate:			float2(0.0f),
+	texture_rotate:				0.0f,
+	texture_scale:				float2(1.0f),
+	uv_space_index:				0,
+	roundcorners_enable:		false,
+	roundcorners_radius_mm:		1.0f,
+	roundcorners_across_materials: false
+);

code/third_party/vMaterials_2/Gems/Zircon.mdl

@@ -0,0 +1,140 @@
+/******************************************************************************
+ *          Copyright 2024 NVIDIA Corporation. All rights reserved.           *
+ ******************************************************************************
+ 
+Permission is hereby granted by NVIDIA Corporation ("NVIDIA"), free of charge,
+to any person obtaining a copy of the sample definition code that uses our 
+Material Definition Language (the "MDL Materials"), to reproduce and distribute
+the MDL Materials, including without limitation the rights to use, copy, merge,
+publish, distribute, and sell modified and unmodified copies of the MDL 
+Materials, and to permit persons to whom the MDL Materials is furnished to do
+so, in all cases solely for use with NVIDIA's Material Definition Language,
+subject to the following further conditions:
+
+1. The above copyright notices, this list of conditions, and the disclaimer
+that follows shall be retained in all copies of one or more of the MDL
+Materials, including in any software with which the MDL Materials are bundled,
+redistributed, and/or sold, and included either as stand-alone text files,
+human-readable headers or in the appropriate machine-readable metadata fields
+within text or binary files as long as those fields can be easily viewed by the
+user, as applicable.
+2. The name of NVIDIA shall not be used to promote, endorse or advertise any 
+Modified Version without specific prior written permission, except a) to comply
+ with the notice requirements otherwise contained herein; or b) to acknowledge
+the contribution(s) of NVIDIA.
+
+THE MDL MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF COPYRIGHT, PATENT,
+TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, INCLUDING ANY GENERAL, SPECIAL, 
+INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF THE USE OR INABILITY TO USE
+THE MDL MATERIALS OR FROM OTHER DEALINGS IN THE MDL MATERIALS.
+*/
+
+mdl 1.6;
+
+import ::df::*;
+import ::anno::*;
+import ::base::*;
+import ::math::*;
+import ::nvidia::core_definitions::thick_glass;
+import ::state::normal;
+
+const string COPYRIGHT = 
+" Copyright 2024 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";
+
+material gem_definition(
+	color transmission_color = color(1.0),
+    uniform color glass_color = color(.95),
+    float roughness = 0.0,
+    uniform float volume_ior = 1.4f,
+    uniform bool dispersion = true,
+    uniform float abbe_number = 1.4f,
+    uniform float base_thickness = .1,
+    float3 normal = ::state::normal()
+)
+[[
+	::anno::hidden()
+]]
+ = let{
+	 
+    bsdf glossy_bsdf = ::df::simple_glossy_bsdf(
+        mode: ::df::scatter_reflect,
+        tint: color(1.),
+        roughness_u: roughness
+    );
+    bsdf glossy_bsdf_transmission = ::df::simple_glossy_bsdf(
+        mode: ::df::scatter_transmit,
+        tint: transmission_color,
+        roughness_u: roughness
+    );
+} in material(
+    thin_walled: false,
+    surface: material_surface(
+        ::df::weighted_layer(
+            normal: normal,
+            weight: 1.,
+            layer: ::df::color_fresnel_layer(
+                layer: glossy_bsdf,
+                base: glossy_bsdf_transmission,
+                ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
+            )
+        )
+    ),
+    volume: material_volume(
+        absorption_coefficient: (base_thickness <= 0)? color(0): ::math::log(glass_color) / -base_thickness
+    ),
+    ior: dispersion?::base::abbe_number_ior(volume_ior, abbe_number):color(volume_ior)
+);
+
+export material Zircon(
+    uniform color volume_color = color ( 0.194618f , 0.879622f , 1.f)
+    [[
+        ::anno::display_name("Volume Color"),
+        ::anno::description("Color effect for volume of the object reached at transmission distance."),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform float clarity =  1.f
+    [[
+        ::anno::display_name("Clarity"),
+        ::anno::description("Use to adapt to size of gem, smaller numbers darken the gem."),
+        ::anno::soft_range(0.1,10.0),
+        ::anno::in_group("Appearance")
+    ]],
+    uniform bool dispersion = true
+    [[
+        ::anno::display_name("Dispersion"),
+        ::anno::description("Enable or disable the dispersion."),
+        ::anno::in_group("Advanced")
+    ]])
+[[
+    ::anno::display_name("Zircon"),
+    ::anno::description("Zircon gem material (Default values based on 2cm stone size.)"),
+    ::anno::author("NVIDIA vMaterials"),
+	::anno::contributor("Rüdiger Raab"),
+	::anno::contributor("Maik Rohland"),
+    ::anno::copyright_notice(COPYRIGHT),
+	::anno::thumbnail("./.thumbs/Zircon.Zircon.png"),
+	::anno::key_words(string[]("gem", "jewelry", "gemstone", "transmissive", "new", "design", "zircon", "purple"))
+]] = gem_definition(
+    transmission_color:  color ( 0.5843138f , 0.945098f , 1.f),
+    glass_color:  volume_color,
+    roughness:  0.f,
+    volume_ior:  1.92f, 
+    dispersion: dispersion,
+    abbe_number: 33.54f,
+    base_thickness:  clarity * 0.05f,
+    normal:  ::state::normal ());
+