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ltface: GetLightContrib: handle light right on top of sample point

This commit is contained in:
Eric Wasylishen 2020-06-25 00:03:38 -06:00
parent 569e7fad02
commit 4e9e94e7bd
1 changed files with 7 additions and 1 deletions
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8
light/ltface.cc
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@ -1025,7 +1025,13 @@ void
GetLightContrib(const globalconfig_t &cfg, const light_t *entity, const vec3_t surfnorm, const vec3_t surfpoint, bool twosided, GetLightContrib(const globalconfig_t &cfg, const light_t *entity, const vec3_t surfnorm, const vec3_t surfpoint, bool twosided,
vec3_t color_out, vec3_t surfpointToLightDir_out, vec3_t normalmap_addition_out, float *dist_out) vec3_t color_out, vec3_t surfpointToLightDir_out, vec3_t normalmap_addition_out, float *dist_out)
{ {
const float dist = GetDir(surfpoint, *entity->origin.vec3Value(), surfpointToLightDir_out); float dist = GetDir(surfpoint, *entity->origin.vec3Value(), surfpointToLightDir_out);
if (dist < 0.1) {
// Catch 0 distance between sample point and light (produces infinite brightness / nan's) and causes
// problems later
dist = 0.1;
VectorSet(surfpointToLightDir_out, 0, 0, 1);
}
const float add = GetLightValueWithAngle(cfg, entity, surfnorm, surfpointToLightDir_out, dist, twosided); const float add = GetLightValueWithAngle(cfg, entity, surfnorm, surfpointToLightDir_out, dist, twosided);
/* write out the final color */ /* write out the final color */