File size: 5,225 Bytes
d883ffe | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 | using UnityEngine;
using UnityEditor.ShaderGraph;
using static Unity.Rendering.Universal.ShaderUtils;
using UnityEditor.ShaderGraph.Internal;
#if HAS_VFX_GRAPH
using UnityEditor.VFX;
#endif
namespace UnityEditor.Rendering.Universal.ShaderGraph
{
abstract class UniversalSubTarget : SubTarget<UniversalTarget>, IHasMetadata
#if HAS_VFX_GRAPH
, IRequireVFXContext
#endif
{
static readonly GUID kSourceCodeGuid = new GUID("92228d45c1ff66740bfa9e6d97f7e280"); // UniversalSubTarget.cs
public override void Setup(ref TargetSetupContext context)
{
context.AddAssetDependency(kSourceCodeGuid, AssetCollection.Flags.SourceDependency);
}
protected abstract ShaderID shaderID { get; }
#if HAS_VFX_GRAPH
// VFX Properties
VFXContext m_ContextVFX = null;
VFXTaskCompiledData m_TaskDataVFX;
protected bool TargetsVFX() => m_ContextVFX != null;
public void ConfigureContextData(VFXContext context, VFXTaskCompiledData data)
{
m_ContextVFX = context;
m_TaskDataVFX = data;
}
#endif
protected SubShaderDescriptor PostProcessSubShader(SubShaderDescriptor subShaderDescriptor)
{
#if HAS_VFX_GRAPH
if (TargetsVFX())
return VFXSubTarget.PostProcessSubShader(subShaderDescriptor, m_ContextVFX, m_TaskDataVFX);
#endif
return subShaderDescriptor;
}
public override void GetFields(ref TargetFieldContext context)
{
#if HAS_VFX_GRAPH
if (TargetsVFX())
VFXSubTarget.GetFields(ref context, m_ContextVFX);
#endif
}
public virtual string identifier => GetType().Name;
public virtual ScriptableObject GetMetadataObject(GraphDataReadOnly graphData)
{
var urpMetadata = ScriptableObject.CreateInstance<UniversalMetadata>();
urpMetadata.shaderID = shaderID;
urpMetadata.alphaMode = target.alphaMode;
if (shaderID != ShaderID.SG_SpriteLit && shaderID != ShaderID.SG_SpriteUnlit)
{
urpMetadata.allowMaterialOverride = target.allowMaterialOverride;
urpMetadata.surfaceType = target.surfaceType;
urpMetadata.castShadows = target.castShadows;
urpMetadata.hasVertexModificationInMotionVector = target.additionalMotionVectorMode != AdditionalMotionVectorMode.None || graphData.AnyVertexAnimationActive();
}
else
{
//Ignore unsupported settings in SpriteUnlit/SpriteLit
urpMetadata.allowMaterialOverride = false;
urpMetadata.surfaceType = SurfaceType.Transparent;
urpMetadata.castShadows = false;
urpMetadata.hasVertexModificationInMotionVector = false;
}
urpMetadata.isVFXCompatible = graphData.IsVFXCompatible();
return urpMetadata;
}
private int lastMaterialNeedsUpdateHash = 0;
protected virtual int ComputeMaterialNeedsUpdateHash() => 0;
public override object saveContext
{
get
{
int hash = ComputeMaterialNeedsUpdateHash();
bool needsUpdate = hash != lastMaterialNeedsUpdateHash;
if (needsUpdate)
lastMaterialNeedsUpdateHash = hash;
return new UniversalShaderGraphSaveContext { updateMaterials = needsUpdate };
}
}
}
internal static class SubShaderUtils
{
internal static void AddFloatProperty(this PropertyCollector collector, string referenceName, float defaultValue, HLSLDeclaration declarationType = HLSLDeclaration.DoNotDeclare)
{
collector.AddShaderProperty(new Vector1ShaderProperty
{
floatType = FloatType.Default,
hidden = true,
overrideHLSLDeclaration = true,
hlslDeclarationOverride = declarationType,
value = defaultValue,
displayName = referenceName,
overrideReferenceName = referenceName,
});
}
internal static void AddToggleProperty(this PropertyCollector collector, string referenceName, bool defaultValue, HLSLDeclaration declarationType = HLSLDeclaration.DoNotDeclare)
{
collector.AddShaderProperty(new BooleanShaderProperty
{
value = defaultValue,
hidden = true,
overrideHLSLDeclaration = true,
hlslDeclarationOverride = declarationType,
displayName = referenceName,
overrideReferenceName = referenceName,
});
}
// Overloads to do inline PassDescriptor modifications
// NOTE: param order should match PassDescriptor field order for consistency
#region PassVariant
internal static PassDescriptor PassVariant(in PassDescriptor source, PragmaCollection pragmas)
{
var result = source;
result.pragmas = pragmas;
return result;
}
#endregion
}
}
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