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light: bounce: only save style 0 lightmap if some traces hit

This commit is contained in:
Eric Wasylishen 2016-08-09 20:55:28 -06:00
parent af2f68c036
commit 59f1ef9a1e
1 changed files with 5 additions and 2 deletions
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7
light/ltface.cc
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@ -1841,6 +1841,8 @@ LightFace_Bounce(const bsp2_t *bsp, const bsp2_dface_t *face, const lightsurf_t
/* use a style 0 light map */
lightmap = Lightmap_ForStyle(lightmaps, 0, lightsurf);
bool hit = false;
for (const bouncelight_t &vpl : BounceLights()) {
if (VisCullEntity(bsp, lightsurf->pvs, vpl.leaf))
continue;
@ -1889,12 +1891,13 @@ LightFace_Bounce(const bsp2_t *bsp, const bsp2_dface_t *face, const lightsurf_t
lightsample_t *sample = &lightmap->samples[i];
VectorAdd(sample->color, indirect, sample->color);
hit = true;
total_bounce_ray_hits++;
}
}
// FIXME: check if (hit)
Lightmap_Save(lightmaps, lightsurf, lightmap, 0);
if (hit)
Lightmap_Save(lightmaps, lightsurf, lightmap, 0);
}