qf/quakeforge
0
0
Fork 0
mirror of https://git.code.sf.net/p/quake/quakeforge synced 2025-01-30 12:40:42 +00:00
Code Issues Projects Releases Packages Wiki Activity

hopefully more correct surface marking for dlights

Browse source
This commit is contained in:
Bill Currie 2004-03-17 04:53:10 +00:00
parent 6c1c39c4d2
commit 4f79d8ce0a
1 changed files with 18 additions and 30 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

48
libs/video/renderer/r_light.c
View file

@ -97,41 +97,29 @@ static inline void
real_mark_surfaces (float dist, msurface_t *surf, const vec3_t lightorigin, real_mark_surfaces (float dist, msurface_t *surf, const vec3_t lightorigin,
dlight_t *light, int bit) dlight_t *light, int bit)
{ {
float dist2, d; float dist2, is, it;
float maxdist = light->radius * light->radius; float maxdist = light->radius * light->radius;
vec3_t impact; vec3_t impact;
dist2 = dist * dist; dist2 = maxdist - dist * dist;
VectorMultSub (light->origin, dist, surf->plane->normal, impact); VectorMultSub (light->origin, dist, surf->plane->normal, impact);
d = DotProduct (impact, surf->texinfo->vecs[0]) is = DotProduct (impact, surf->texinfo->vecs[0])
+ surf->texinfo->vecs[0][3] - surf->texturemins[0]; + surf->texinfo->vecs[0][3] - surf->texturemins[0];
if (d < 0) { it = DotProduct (impact, surf->texinfo->vecs[1])
dist2 += d * d;
if (dist2 >= maxdist)
return;
} else {
d -= surf->extents[0] + 16;
if (d > 0) {
dist2 += d * d;
if (dist2 >= maxdist)
return;
}
}
d = DotProduct (impact, surf->texinfo->vecs[1])
+ surf->texinfo->vecs[1][3] - surf->texturemins[1]; + surf->texinfo->vecs[1][3] - surf->texturemins[1];
if (d < 0) {
dist2 += d * d; // compress the square to a point
if (dist2 >= maxdist) if (is > surf->extents[0])
return; is -= surf->extents[0];
} else { else if (is > 0)
d -= surf->extents[1] + 16; is = 0;
if (d > 0) { if (it > surf->extents[1])
dist2 += d * d; it -= surf->extents[1];
if (dist2 >= maxdist) else if (it > 0)
return; it = 0;
} if (is * is + it * it > dist2)
} return;
if (surf->dlightframe != r_framecount) { if (surf->dlightframe != r_framecount) {
surf->dlightbits = 0; surf->dlightbits = 0;
@ -149,7 +137,7 @@ mark_surfaces (msurface_t *surf, const vec3_t lightorigin, dlight_t *light,
dist = PlaneDiff(lightorigin, surf->plane); dist = PlaneDiff(lightorigin, surf->plane);
if (surf->flags & SURF_PLANEBACK) if (surf->flags & SURF_PLANEBACK)
dist = -dist; dist = -dist;
if ((dist < -0.25f && !(surf->flags & SURF_LIGHTBOTHSIDES)) if ((dist < 0 && !(surf->flags & SURF_LIGHTBOTHSIDES))
|| dist > light->radius) || dist > light->radius)
return; return;