mathe/Library/PackageCache/com.unity.shadergraph@14.0.8/Editor/Generation/Targets/PreviewTarget.cs

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C#
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2024-09-20 20:30:10 +02:00
using System;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Rendering;
using UnityEngine.UIElements;
namespace UnityEditor.ShaderGraph
{
sealed class PreviewTarget : Target
{
static readonly GUID kSourceCodeGuid = new GUID("7464b9fcde08e5645a16b9b8ae1e573c"); // PreviewTarget.cs
public PreviewTarget()
{
displayName = "Preview";
isHidden = true;
}
public override bool IsActive() => false;
internal override bool ignoreCustomInterpolators => false;
public override void Setup(ref TargetSetupContext context)
{
context.AddAssetDependency(kSourceCodeGuid, AssetCollection.Flags.SourceDependency);
context.AddSubShader(SubShaders.Preview);
}
public override void GetFields(ref TargetFieldContext context)
{
}
public override void GetActiveBlocks(ref TargetActiveBlockContext context)
{
}
public override void GetPropertiesGUI(ref TargetPropertyGUIContext context, Action onChange, Action<String> registerUndo)
{
}
public override bool WorksWithSRP(RenderPipelineAsset scriptableRenderPipeline) => true;
static class SubShaders
{
public static SubShaderDescriptor Preview = new SubShaderDescriptor()
{
renderQueue = "Geometry",
renderType = "Opaque",
generatesPreview = true,
passes = new PassCollection { Passes.Preview },
};
}
static class Passes
{
public static PassDescriptor Preview = new PassDescriptor()
{
// Definition
referenceName = "SHADERPASS_PREVIEW",
useInPreview = true,
// Templates
passTemplatePath = GenerationUtils.GetDefaultTemplatePath("PassMesh.template"),
sharedTemplateDirectories = GenerationUtils.GetDefaultSharedTemplateDirectories(),
// Collections
structs = new StructCollection
{
{ Structs.Attributes },
{ StructDescriptors.PreviewVaryings },
{ Structs.SurfaceDescriptionInputs },
{ Structs.VertexDescriptionInputs },
},
fieldDependencies = FieldDependencies.Default,
pragmas = new PragmaCollection
{
{ Pragma.Vertex("vert") },
{ Pragma.Fragment("frag") },
},
defines = new DefineCollection
{
{ KeywordDescriptors.PreviewKeyword, 1 },
},
includes = new IncludeCollection
{
// Pre-graph
{ "Packages/com.unity.render-pipelines.core/ShaderLibrary/Common.hlsl", IncludeLocation.Pregraph },
{ "Packages/com.unity.render-pipelines.core/ShaderLibrary/Packing.hlsl", IncludeLocation.Pregraph },
{ "Packages/com.unity.render-pipelines.core/ShaderLibrary/TextureStack.hlsl", IncludeLocation.Pregraph }, // TODO: put this on a conditional
{ "Packages/com.unity.render-pipelines.core/ShaderLibrary/NormalSurfaceGradient.hlsl", IncludeLocation.Pregraph },
{ "Packages/com.unity.render-pipelines.core/ShaderLibrary/Color.hlsl", IncludeLocation.Pregraph },
{ "Packages/com.unity.render-pipelines.core/ShaderLibrary/Texture.hlsl", IncludeLocation.Pregraph },
{ "Packages/com.unity.render-pipelines.core/ShaderLibrary/UnityInstancing.hlsl", IncludeLocation.Pregraph },
{ "Packages/com.unity.render-pipelines.core/ShaderLibrary/EntityLighting.hlsl", IncludeLocation.Pregraph },
{ "Packages/com.unity.shadergraph/ShaderGraphLibrary/ShaderVariables.hlsl", IncludeLocation.Pregraph },
{ "Packages/com.unity.shadergraph/ShaderGraphLibrary/ShaderVariablesFunctions.hlsl", IncludeLocation.Pregraph },
{ "Packages/com.unity.shadergraph/ShaderGraphLibrary/Functions.hlsl", IncludeLocation.Pregraph },
// Post-graph
{ "Packages/com.unity.shadergraph/ShaderGraphLibrary/PreviewVaryings.hlsl", IncludeLocation.Postgraph },
{ "Packages/com.unity.shadergraph/ShaderGraphLibrary/PreviewPass.hlsl", IncludeLocation.Postgraph },
}
};
}
static class StructDescriptors
{
public static StructDescriptor PreviewVaryings = new StructDescriptor()
{
name = "Varyings",
packFields = true,
fields = new[]
{
StructFields.Varyings.positionCS,
StructFields.Varyings.positionWS,
StructFields.Varyings.positionPredisplacementWS,
StructFields.Varyings.normalWS,
StructFields.Varyings.tangentWS,
StructFields.Varyings.texCoord0,
StructFields.Varyings.texCoord1,
StructFields.Varyings.texCoord2,
StructFields.Varyings.texCoord3,
StructFields.Varyings.color,
StructFields.Varyings.screenPosition,
StructFields.Varyings.instanceID,
StructFields.Varyings.vertexID,
StructFields.Varyings.cullFace,
}
};
}
static class KeywordDescriptors
{
public static KeywordDescriptor PreviewKeyword = new KeywordDescriptor()
{
displayName = "Preview",
referenceName = "SHADERGRAPH_PREVIEW",
type = KeywordType.Boolean,
definition = KeywordDefinition.MultiCompile,
scope = KeywordScope.Global,
stages = KeywordShaderStage.All,
};
}
}
}