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PixelShaderGen: Fix an issue where small negative z coordinates would underflow when they shouldn't.

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Tony Wasserka 2013-12-08 14:31:33 +01:00
commit 1b3b12caa0
1 changed files with 1 additions and 1 deletions
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Source/Core/VideoCommon/PixelShaderGen.cpp
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@ -590,7 +590,7 @@ static inline void GeneratePixelShader(T& out, DSTALPHA_MODE dstAlphaMode, API_T
// U24 overflow emulation // U24 overflow emulation
out.Write("zCoord = zCoord * (16777215.0/16777216.0);\n"); out.Write("zCoord = zCoord * (16777215.0/16777216.0);\n");
out.Write("zCoord = frac(zCoord);\n"); out.Write("zCoord = zCoord - 2.0*round(0.5*zCoord);\n");
out.Write("zCoord = zCoord * (16777216.0/16777215.0);\n"); out.Write("zCoord = zCoord * (16777216.0/16777215.0);\n");
} }