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light: remove redundant ray trace in SingleLightFace 

Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
This commit is contained in:
Kevin Shanahan 2013-03-03 13:05:11 +10:30
parent 4879c7e874
commit f5e7e594e4
1 changed files with 3 additions and 2 deletions
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5
light/ltface.c
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@ -555,7 +555,8 @@ SingleLightFace(const entity_t *light, lightinfo_t * l,
vec3_t ray;
VectorSubtract(light->origin, surf, ray);
VectorNormalize(ray);
dist = VectorLength(ray);
VectorScale(ray, 1.0 / dist, ray);
angle = DotProduct(ray, l->facenormal);
if (light->spotlight) {
vec_t falloff = DotProduct(light->spotvec, ray);
@ -568,7 +569,7 @@ SingleLightFace(const entity_t *light, lightinfo_t * l,
continue;
angle = (1.0 - scalecos) + scalecos * angle;
add = scaledLight(CastRay(light->origin, surf), light);
add = scaledLight(dist, light);
add *= angle;
lightsamp[c] += add;
if (colored)