/*
* @brief Create surface fragments for light-emitting surfaces so that light sources
* may be computed along them.
*/
void BuildPatches(void) {
int32_t i, j, k;
winding_t *w;
vec3_t origin;
for (i = 0; i < d_bsp.num_models; i++) {
const d_bsp_model_t *mod = &d_bsp.models[i];
const entity_t *ent = EntityForModel(i);
// bmodels with origin brushes need to be offset into their
// in-use position
GetVectorForKey(ent, "origin", origin);
for (j = 0; j < mod->num_faces; j++) {
const int32_t facenum = mod->first_face + j;
d_bsp_face_t *f = &d_bsp.faces[facenum];
VectorCopy(origin, face_offset[facenum]);
if (!HasLight(f)) // no light
continue;
w = WindingForFace(f);
for (k = 0; k < w->num_points; k++) {
VectorAdd(w->points[k], origin, w->points[k]);
}
BuildPatch(facenum, w);
}
}
}
/*
* @brief
*/
static inline void EmissiveLight(patch_t *patch) {
if (HasLight(patch->face)) {
const d_bsp_texinfo_t *tex = &d_bsp.texinfo[patch->face->texinfo];
const vec_t *ref = texture_reflectivity[patch->face->texinfo];
VectorScale(ref, tex->value, patch->light);
}
}
/**
* @brief Create surface fragments for light-emitting surfaces so that light sources
* may be computed along them.
*/
void BuildPatches (void)
{
int i;
OBJZERO(face_patches);
for (i = 0; i < curTile->nummodels; i++) {
const dBspModel_t* mod = &curTile->models[i];
const entity_t* ent = EntityForModel(i);
vec3_t origin;
int j;
/* bmodels with origin brushes (like func_door) need to be offset into their
* in-use position */
GetVectorForKey(ent, "origin", origin);
for (j = 0; j < mod->numfaces; j++) {
const int facenum = mod->firstface + j;
dBspSurface_t* f = &curTile->faces[facenum];
winding_t* w;
int k;
/* store the origin in case of moving bmodels (e.g. func_door) */
VectorCopy(origin, face_offset[facenum]);
if (!HasLight(f)) /* no light */
continue;
w = WindingFromFace(f);
for (k = 0; k < w->numpoints; k++)
VectorAdd(w->p[k], origin, w->p[k]);
BuildPatch(facenum, w);
}
}
}
