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- [EMU] replace some tex coordinate tearing by replacing "fract(x / m) * m" by mod(x,m)

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This commit is contained in:
Ilya Shurumov 2020-11-12 18:23:56 +06:00
parent e54d675658
commit 6cfe1b5190
1 changed files with 2 additions and 2 deletions
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4
src_rebuild/EMULATOR/EMULATOR.C
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@ -917,12 +917,12 @@ GLint u_Projection3D;
" float samplePSX(vec2 tc){\n"\
" vec2 uv = (tc * vec2(0.25, 1.0) + v_page_clut.xy) * vec2(1.0 / 1024.0, 1.0 / 512.0);\n"\
" vec2 comp = VRAM(uv);\n"\
" int index = int(fract(tc.x / 4.0) * 4.0);\n"\
" int index = int(mod(tc.x, 4.0));\n"\
" float v = comp[index / 2] * (255.0 / 16.0);\n"\
" float f = floor(v);\n"\
" vec2 c = vec2( (v - f) * 16.0, f );\n"\
" vec2 clut_pos = v_page_clut.zw;\n"\
" clut_pos.x += mix(c[0], c[1], fract(float(index) / 2.0) * 2.0) / 1024.0;\n"\
" clut_pos.x += mix(c[0], c[1], mod(index, 2)) / 1024.0;\n"\
" return packRG(VRAM(clut_pos));\n"\
" }\n"