26 lines
857 B
HLSL
26 lines
857 B
HLSL
#ifndef POI_ALPHA_TO_COVERAGE
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#define POI_ALPHA_TO_COVERAGE
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half _MainMipScale;
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float _MainAlphaToCoverage;
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float CalcMipLevel(float2 texture_coord)
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{
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float2 dx = ddx(texture_coord);
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float2 dy = ddy(texture_coord);
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float delta_max_sqr = max(dot(dx, dx), dot(dy, dy));
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return 0.5 * log2(delta_max_sqr);
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}
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void ApplyAlphaToCoverage(inout float4 finalColor)
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{
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if ((9.0 /*_Mode*/) == 1)
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{
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if((0.0 /*_MainAlphaToCoverage*/))
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{
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finalColor.a *= 1 + max(0, CalcMipLevel(poiMesh.uv[0] * float4(0.0009765625,0.0009765625,1024,1024).zw)) * (0.25 /*_MainMipScale*/);
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finalColor.a = (finalColor.a - (0.0 /*_Cutoff*/)) / max(fwidth(finalColor.a), 0.0001) + (0.0 /*_Cutoff*/);
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}
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}
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}
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#endif
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