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Fix the black overbright dlights.
t was unsigned and underflowing. This fixes the problem but keeps the bitshift unsigned clean.
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310ba49f17
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1 changed files with 6 additions and 6 deletions
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@ -124,8 +124,8 @@ static void
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R_BuildLightMap_1 (msurface_t *surf)
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{
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int smax, tmax, size;
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unsigned scale, t;
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int i;
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unsigned scale;
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int i, t;
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byte *out;
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smax = (surf->extents[0] >> 4) + 1;
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@ -163,10 +163,10 @@ R_BuildLightMap_1 (msurface_t *surf)
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// bound, invert, and shift
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out = (byte *) blocklights;
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for (i = 0; i < size; i++) {
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t = (255 * 256 - (int) blocklights[i]) >> (8 - VID_CBITS);
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t = max (t, 1 << 6);
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*out++ = t >> 8;
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t = (255 * 256 - (int) blocklights[i]);
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t = max (t, 1 << (14 - VID_CBITS));
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t = ((unsigned) t) >> (16 - VID_CBITS);
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*out++ = t;
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}
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GL_SubpicUpdate (surf->lightpic, (byte *) blocklights);
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