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#5979: Cubemap support for opengl2.

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This commit is contained in:
SmileTheory 2013-09-16 00:54:26 -07:00
parent 68a616c7f1
commit 7e875c6941
23 changed files with 1268 additions and 516 deletions
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29
code/renderergl2/tr_light.c
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@ -449,3 +449,32 @@ int R_LightDirForPoint( vec3_t point, vec3_t lightDir, vec3_t normal, world_t *w
return qtrue;
}
int R_CubemapForPoint( vec3_t point )
{
int cubemapIndex = -1;
if (r_cubeMapping->integer && tr.numCubemaps)
{
int i;
vec_t shortest = (float)WORLD_SIZE * (float)WORLD_SIZE;
for (i = 0; i < tr.numCubemaps; i++)
{
vec3_t diff;
vec_t length;
VectorSubtract(point, tr.cubemapOrigins[i], diff);
length = DotProduct(diff, diff);
if (shortest > length)
{
shortest = length;
cubemapIndex = i;
}
}
}
return cubemapIndex + 1;
}