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31 行
985 B
31 行
985 B
namespace UnityEditor.Graphs.Material
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{
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[Title("Math/Fresnel Node")]
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class FresnelNode : Function2Input, IGeneratesFunction
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{
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public override void Init()
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{
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name = "FresnelNode";
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base.Init();
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}
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protected override string GetFunctionName() { return "unity_fresnel_" + precision; }
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public void GenerateNodeFunction(ShaderGenerator visitor, GenerationMode generationMode)
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{
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var outputString = new ShaderGenerator();
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foreach (var precision in m_PrecisionNames)
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{
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outputString.AddShaderChunk("inline " + precision + "4 unity_fresnel_" + precision + " (" + precision + "4 arg1, " + precision + "4 arg2)", false);
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outputString.AddShaderChunk("{", false);
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outputString.Indent();
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outputString.AddShaderChunk("return (1.0 - dot (normalize (arg1.xyz), normalize (arg2.xyz))).xxxx;", false);
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outputString.Deindent();
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outputString.AddShaderChunk("}", false);
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}
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visitor.AddShaderChunk(outputString.GetShaderString(0), true);
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}
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}
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}
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