70 lines
3.4 KiB
C#
70 lines
3.4 KiB
C#
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using UnityEngine;
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using UnityEditor.ShaderGraph;
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using UnityEditor.Graphing;
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using UnityEditor.ShaderGraph.Internal;
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namespace UnityEditor.Rendering.CustomRenderTexture.ShaderGraph
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{
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[Title("Custom Render Texture", "Self")]
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[SubTargetFilter(typeof(CustomTextureSubTarget))]
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class CustomTextureSelf : AbstractMaterialNode, IGeneratesFunction
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{
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private const string kOutputSlotSelf2DName = "Self Texture 2D";
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private const string kOutputSlotSelfCubeName = "Self Texture Cube";
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private const string kOutputSlotSelf3DName = "Self Texture 3D";
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public const int OutputSlotSelf2DId = 5;
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public const int OutputSlotSelfCubeId = 6;
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public const int OutputSlotSelf3DId = 7;
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public CustomTextureSelf()
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{
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name = "Custom Render Texture Self";
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UpdateNodeAfterDeserialization();
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}
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protected int[] validSlots => new[] { OutputSlotSelf2DId, OutputSlotSelfCubeId, OutputSlotSelf3DId };
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public sealed override void UpdateNodeAfterDeserialization()
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{
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AddSlot(new Texture2DMaterialSlot(OutputSlotSelf2DId, kOutputSlotSelf2DName, kOutputSlotSelf2DName, SlotType.Output, ShaderStageCapability.Fragment, false) { bareResource = true });
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AddSlot(new CubemapMaterialSlot(OutputSlotSelfCubeId, kOutputSlotSelfCubeName, kOutputSlotSelfCubeName, SlotType.Output, ShaderStageCapability.Fragment, false) { bareResource = true });
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AddSlot(new Texture3DMaterialSlot(OutputSlotSelf3DId, kOutputSlotSelf3DName, kOutputSlotSelf3DName, SlotType.Output, ShaderStageCapability.Fragment, false) { bareResource = true });
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RemoveSlotsNameNotMatching(validSlots);
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}
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public override string GetVariableNameForSlot(int slotId)
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{
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switch (slotId)
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{
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case OutputSlotSelf2DId:
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return "UnityBuildTexture2DStructNoScale(_SelfTexture2D)";
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case OutputSlotSelfCubeId:
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return "UnityBuildTextureCubeStruct(_SelfTextureCube)";
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default:
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return "UnityBuildTexture3DStruct(_SelfTexture3D)";
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}
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}
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public void GenerateNodeFunction(FunctionRegistry registry, GenerationMode generationMode)
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{
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// For preview only we declare CRT defines
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if (generationMode == GenerationMode.Preview)
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{
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registry.builder.AppendLine("#if !defined(UNITY_CRT_PREVIEW_TEXTURE) && !defined(UNITY_CUSTOM_TEXTURE_INCLUDED)");
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registry.builder.AppendLine("#define UNITY_CRT_PREVIEW_TEXTURE");
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registry.builder.AppendLine("TEXTURE2D(_SelfTexture2D);");
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registry.builder.AppendLine("SAMPLER(sampler_SelfTexture2D);");
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registry.builder.AppendLine("float4 _SelfTexture2D_TexelSize;");
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registry.builder.AppendLine("TEXTURECUBE(_SelfTextureCube);");
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registry.builder.AppendLine("SAMPLER(sampler_SelfTextureCube);");
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registry.builder.AppendLine("float4 _SelfTextureCube_TexelSize;");
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registry.builder.AppendLine("TEXTURE3D(_SelfTexture3D);");
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registry.builder.AppendLine("SAMPLER(sampler_SelfTexture3D);");
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registry.builder.AppendLine("float4 sampler_SelfTexture3D_TexelSize;");
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registry.builder.AppendLine("#endif");
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}
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}
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}
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}
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