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39 行
1.1 KiB
39 行
1.1 KiB
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void MainLight_half(float3 WorldPos, out half3 Direction, out half3 Color, out half DistanceAtten, out half ShadowAtten)
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{
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#if SHADERGRAPH_PREVIEW
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Direction = half3(0.5, 0.5, 0);
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Color = 1;
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DistanceAtten = 1;
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ShadowAtten = 1;
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#else
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#if SHADOWS_SCREEN
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half4 clipPos = TransformWorldToHClip(WorldPos);
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half4 shadowCoord = ComputeScreenPos(clipPos);
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#else
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half4 shadowCoord = TransformWorldToShadowCoord(WorldPos);
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#endif
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Light mainLight = GetMainLight(shadowCoord);
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Direction = mainLight.direction;
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Color = mainLight.color;
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DistanceAtten = mainLight.distanceAttenuation;
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ShadowAtten = mainLight.shadowAttenuation;
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#endif
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}
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void SampleSH_half(half3 normalWS, out half3 Ambient)
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{
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// LPPV is not supported in Ligthweight Pipeline
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real4 SHCoefficients[7];
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SHCoefficients[0] = unity_SHAr;
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SHCoefficients[1] = unity_SHAg;
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SHCoefficients[2] = unity_SHAb;
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SHCoefficients[3] = unity_SHBr;
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SHCoefficients[4] = unity_SHBg;
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SHCoefficients[5] = unity_SHBb;
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SHCoefficients[6] = unity_SHC;
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Ambient = max(half3(0, 0, 0), SampleSH9(SHCoefficients, normalWS));
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}
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