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renderergl2: reimplement greyscale as backend post after all 2D+3D draws

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Fixes #654 - HUD/UI previously bypassed greyscale.
r_greyscale now supports partial desaturation [0-1].
Removed unused legacy logic from tr_shade.c
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Lojjik Braughler authored and Tim Angus committed 2025-11-11 12:21:15 +00:00
1 parent 7bd2c17f9d
commit 453705553b
9 files changed
+166 -111
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code/renderergl2/tr_shade.c
-14
View File
@@ -722,20 +722,6 @@ static void ComputeShaderColors( shaderStage_t *pStage, vec4_t baseColor, vec4_t
break;
}
// FIXME: find some way to implement this.
#if 0
// if in greyscale rendering mode turn all color values into greyscale.
if(r_greyscale->integer)
{
int scale;
for(i = 0; i < tess.numVertexes; i++)
{
scale = (tess.svars.colors[i][0] + tess.svars.colors[i][1] + tess.svars.colors[i][2]) / 3;
tess.svars.colors[i][0] = tess.svars.colors[i][1] = tess.svars.colors[i][2] = scale;
}
}
#endif
}