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- fix decals looking blackened due to low lookup table precision when alpha is zero
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commit
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1 changed files with 13 additions and 7 deletions
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@ -1385,9 +1385,12 @@ namespace swrenderer
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do
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do
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{
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{
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uint32_t val = colormap[source[frac >> FRACBITS]];
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uint32_t val = colormap[source[frac >> FRACBITS]];
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uint32_t fg = fgstart[val << 8];
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if (val != 0)
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val = (Col2RGB8[64 - val][*dest] + fg) | 0x1f07c1f;
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{
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*dest = RGB32k.All[val & (val >> 15)];
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uint32_t fg = fgstart[val << 8];
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val = (Col2RGB8[64 - val][*dest] + fg) | 0x1f07c1f;
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*dest = RGB32k.All[val & (val >> 15)];
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}
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dest += pitch;
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dest += pitch;
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frac += fracstep;
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frac += fracstep;
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@ -1400,10 +1403,13 @@ namespace swrenderer
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{
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{
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uint32_t val = colormap[source[frac >> FRACBITS]] << 2;
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uint32_t val = colormap[source[frac >> FRACBITS]] << 2;
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int r = (palette[*dest].r * (256-val) + palette[color].r * val) >> 10;
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if (val != 0)
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int g = (palette[*dest].g * (256-val) + palette[color].g * val) >> 10;
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{
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int b = (palette[*dest].b * (256-val) + palette[color].b * val) >> 10;
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int r = (palette[*dest].r * (256 - val) + palette[color].r * val) >> 10;
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*dest = RGB256k.RGB[clamp(r,0,63)][clamp(g,0,63)][clamp(b,0,63)];
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int g = (palette[*dest].g * (256 - val) + palette[color].g * val) >> 10;
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int b = (palette[*dest].b * (256 - val) + palette[color].b * val) >> 10;
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*dest = RGB256k.RGB[clamp(r, 0, 63)][clamp(g, 0, 63)][clamp(b, 0, 63)];
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}
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dest += pitch;
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dest += pitch;
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frac += fracstep;
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frac += fracstep;
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