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43 行
1.5 KiB
43 行
1.5 KiB
using UnityEngine.Graphing;
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namespace UnityEngine.MaterialGraph
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{
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[Title ("Math/Color/LineartoRGB")]
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public class LineartoRGBNode : Function1Input, IGeneratesFunction
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{
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public LineartoRGBNode()
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{
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name = "RGBtoLinear";
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}
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protected override string GetFunctionName ()
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{
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return "unity_lineartorgb_" + precision;
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}
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protected override MaterialSlot GetInputSlot ()
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{
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return new MaterialSlot (InputSlotId, GetInputSlotName (), kInputSlotShaderName, SlotType.Input, SlotValueType.Vector3, Vector4.zero);
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}
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protected override MaterialSlot GetOutputSlot ()
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{
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return new MaterialSlot (OutputSlotId, GetOutputSlotName (), kOutputSlotShaderName, SlotType.Output, SlotValueType.Vector3, Vector4.zero);
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}
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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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outputString.AddShaderChunk (GetFunctionPrototype ("arg1"), false);
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outputString.AddShaderChunk ("{", false);
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outputString.Indent ();
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outputString.AddShaderChunk (precision + "3 sRGBLo = arg1 * 12.92;", false);
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outputString.AddShaderChunk (precision + "3 sRGBHi = (pow(max(abs(arg1), 1.192092896e-07), "+precision+ "3(1.0 / 2.4, 1.0 / 2.4, 1.0 / 2.4)) * 1.055) - 0.055;", false);
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outputString.AddShaderChunk ("return " + precision + "3(arg1 <= 0.0031308) ? sRGBLo : sRGBHi;", false);
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outputString.Deindent ();
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outputString.AddShaderChunk ("}", false);
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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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