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light: use fadedist instead of scaledDistance() 

Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
This commit is contained in:
Kevin Shanahan 2013-03-03 13:46:31 +10:30
parent 45057df2ad
commit fc90cfdff4
1 changed files with 2 additions and 26 deletions
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28
light/ltface.c
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@ -439,30 +439,6 @@ CalcPoints(lightinfo_t * l)
static int c_culldistplane;
static int c_proper;
/*
* ==============================================
* LIGHT: Attenuation formulae setup functions
* ==============================================
*/
static vec_t
scaledDistance(vec_t distance, const entity_t *light)
{
switch (light->formula) {
case LF_LINEAR:
return scaledist * light->atten * distance;
case LF_INVERSE:
case LF_INVERSE2:
case LF_INVERSE2A:
case LF_INFINITE:
case LF_LOCALMIN:
/* Return a small distance to prevent culling these lights, since we */
/* know these formulae won't fade to nothing. */
return (distance <= 0.0) ? -0.25 : 0.25;
default:
Error("Internal error: unknown light formula");
}
}
static vec_t
scaledLight(vec_t distance, const entity_t *light)
{
@ -515,11 +491,11 @@ SingleLightFace(const entity_t *light, lightinfo_t * l,
dist = DotProduct(light->origin, l->facenormal) - l->facedist;
/* don't bother with lights behind the surface */
if (scaledDistance(dist, light) < 0)
if (dist < 0)
return;
/* don't bother with light too far away */
if (scaledDistance(dist, light) > abs(light->light)) {
if (dist > light->fadedist) {
c_culldistplane++;
return;
}