30 lines
967 B
HLSL
30 lines
967 B
HLSL
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#ifndef SUBSURFACE
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#define SUBSURFACE
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float _SSSThicknessMod;
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float _SSSStrength;
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float _SSSPower;
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float _SSSDistortion;
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float4 _SSSColor;
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UNITY_DECLARE_TEX2D_NOSAMPLER(_SSSThicknessMap); float4 _SSSThicknessMap_ST;
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float3 finalSSS;
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void calculateSubsurfaceScattering(v2f i, float3 viewDir)
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{
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float SSS = 1 - UNITY_SAMPLE_TEX2D_SAMPLER(_SSSThicknessMap, _MainTex, TRANSFORM_TEX(i.uv, _SSSThicknessMap));
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half3 vLTLight = poiLight.direction + baseNormal * _SSSDistortion;
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half flTDot = pow(saturate(dot(viewDir, -vLTLight)), _SSSPower) * _SSSStrength;
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half3 fLT = poiLight.attenuation * (flTDot) * saturate(SSS + -1 * _SSSThicknessMod);
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finalSSS = fLT;
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}
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void applySubsurfaceScattering(inout float4 finalColor)
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{
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finalColor.rgb += finalSSS * poiLight.color * albedo * _SSSColor;
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}
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#endif
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