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39 行
1.1 KiB
39 行
1.1 KiB
using UnityEngine;
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namespace UnityEditor.Graphs.Material
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{
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[Title("Input/View Direction Node")]
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public class ViewDirectionNode : BaseMaterialNode, IGeneratesVertexToFragmentBlock
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{
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private const string kOutputSlotName = "ViewDirection";
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public override bool hasPreview { get { return true; } }
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public override PreviewMode previewMode
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{
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get { return PreviewMode.Preview3D; }
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}
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public override void Init()
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{
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base.Init ();
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name = "View Direction";
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AddSlot (new Slot (SlotType.OutputSlot, kOutputSlotName));
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}
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public override string GetOutputVariableNameForSlot(Slot slot, GenerationMode generationMode)
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{
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if (generationMode == GenerationMode.Preview2D)
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Debug.LogError("Trying to generate 2D preview on a node that does not support it!");
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return "float4 (IN.viewDir, 1)";
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}
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public void GenerateVertexToFragmentBlock(ShaderGenerator visitor, GenerationMode generationMode)
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{
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if (generationMode == GenerationMode.Preview2D)
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Debug.LogError("Trying to generate 2D preview on a node that does not support it!");
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visitor.AddShaderChunk("float3 viewDir;", true);
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}
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}
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}
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