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GeometryShaderGen: Use lower-left origin for point texture coordinates 

From what I can tell, the emulated GPU places (0,0) at the lower left of
the image, and we were generating texture coordinates so that (0,0) was
at the upper-left in the expansion geometry shader, causing textures
used by point sprites to be flipped vertically.

Fixes the upside-down A button in Mario Golf.
This commit is contained in:
Stenzek 2017-01-03 20:49:21 +10:00
parent cbb0f78dd1
commit 176177af49
1 changed files with 3 additions and 3 deletions
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6
Source/Core/VideoCommon/GeometryShaderGen.cpp
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@ -285,9 +285,9 @@ ShaderCode GenerateGeometryShaderCode(APIType ApiType, const geometry_shader_uid
for (unsigned int i = 0; i < uid_data->numTexGens; ++i)
{
out.Write("\tif (((" I_TEXOFFSET "[1] >> %d) & 0x1) != 0) {\n", i);
out.Write("\t\tll.tex%d.xy += float2(0,1) * texOffset;\n", i);
out.Write("\t\tlr.tex%d.xy += texOffset;\n", i);
out.Write("\t\tur.tex%d.xy += float2(1,0) * texOffset;\n", i);
out.Write("\t\tul.tex%d.xy += float2(0,1) * texOffset;\n", i);
out.Write("\t\tur.tex%d.xy += texOffset;\n", i);
out.Write("\t\tlr.tex%d.xy += float2(1,0) * texOffset;\n", i);
out.Write("\t}\n");
}
out.Write("\t}\n");