49 lines
1.3 KiB
HLSL
49 lines
1.3 KiB
HLSL
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#ifndef POI_BACKFACE
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#define POI_BACKFACE
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float _BackFaceEnabled;
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float _BackFaceTextureUV;
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float _BackFaceDetailIntensity;
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float _BackFaceEmissionStrength;
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float2 _BackFacePanning;
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float _BackFaceHueShift;
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float4 _BackFaceColor;
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float _BackFaceReplaceAlpha;
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#if defined(PROP_BACKFACETEXTURE) || !defined(OPTIMIZER_ENABLED)
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UNITY_DECLARE_TEX2D_NOSAMPLER(_BackFaceTexture); float4 _BackFaceTexture_ST;
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#endif
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float3 BackFaceColor;
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void applyBackFaceTexture(inout float backFaceDetailIntensity, inout float mixedHueShift, inout float4 albedo, inout float3 backFaceEmission)
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{
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backFaceEmission = 0;
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BackFaceColor = 0;
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UNITY_BRANCH
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if (_BackFaceEnabled)
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{
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if (!poiMesh.isFrontFace)
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{
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#if defined(PROP_BACKFACETEXTURE) || !defined(OPTIMIZER_ENABLED)
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float4 backFaceTex = POI2D_SAMPLER_PAN(_BackFaceTexture, _MainTex, poiMesh.uv[_BackFaceTextureUV], _BackFacePanning) * _BackFaceColor;
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#else
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float4 backFaceTex = _BackFaceColor;
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#endif
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albedo.rgb = backFaceTex.rgb;
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UNITY_BRANCH
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if (_BackFaceReplaceAlpha)
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{
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albedo.a = backFaceTex.a;
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}
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backFaceDetailIntensity = _BackFaceDetailIntensity;
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BackFaceColor = albedo.rgb;
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mixedHueShift = _BackFaceHueShift;
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backFaceEmission = BackFaceColor * _BackFaceEmissionStrength;
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}
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}
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}
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#endif
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