2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 cvar_t r_lightmodels = {"r_lightmodels", "1"};
26 extern cvar_t gl_transform;
32 void r_light_shutdown()
42 Cvar_RegisterVariable(&r_lightmodels);
43 R_RegisterModule("R_Light", r_light_start, r_light_shutdown, r_light_newmap);
51 void R_AnimateLight (void)
57 // 'm' is normal light, 'a' is no light, 'z' is double bright
58 i = (int)(cl.time*10);
59 for (j=0 ; j<MAX_LIGHTSTYLES ; j++)
61 if (!cl_lightstyle[j].length)
63 d_lightstylevalue[j] = 256;
66 k = i % cl_lightstyle[j].length;
67 k = cl_lightstyle[j].map[k] - 'a';
69 d_lightstylevalue[j] = k;
74 =============================================================================
78 =============================================================================
86 void R_OldMarkLights (vec3_t lightorigin, dlight_t *light, int bit, int bitindex, mnode_t *node)
96 // for comparisons to minimum acceptable light
97 maxdist = light->radius * light->radius;
99 // clamp radius to avoid exceeding 32768 entry division table
100 if (maxdist > 4194304)
104 if (node->contents < 0)
106 if (node->contents != CONTENTS_SOLID)
108 leaf = (mleaf_t *)node;
109 if (leaf->dlightframe != r_framecount) // not dynamic until now
111 leaf->dlightbits[0] = leaf->dlightbits[1] = leaf->dlightbits[2] = leaf->dlightbits[3] = leaf->dlightbits[4] = leaf->dlightbits[5] = leaf->dlightbits[6] = leaf->dlightbits[7] = 0;
112 leaf->dlightframe = r_framecount;
114 leaf->dlightbits[bitindex] |= bit;
119 ndist = PlaneDiff(lightorigin, node->plane);
121 if (ndist > light->radius)
123 node = node->children[0];
126 if (ndist < -light->radius)
128 node = node->children[1];
133 surf = cl.worldmodel->surfaces + node->firstsurface;
134 for (i=0 ; i<node->numsurfaces ; i++, surf++)
137 float dist, dist2, impact[3];
138 if (surf->visframe != r_framecount)
141 if (surf->flags & SURF_PLANEBACK)
144 if (dist < -0.25f && !(surf->flags & SURF_LIGHTBOTHSIDES))
148 if (dist2 >= maxdist)
151 impact[0] = light->origin[0] - surf->plane->normal[0] * dist;
152 impact[1] = light->origin[1] - surf->plane->normal[1] * dist;
153 impact[2] = light->origin[2] - surf->plane->normal[2] * dist;
155 d = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
160 if (dist2 >= maxdist)
165 d -= surf->extents[0] + 16;
169 if (dist2 >= maxdist)
174 d = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
179 if (dist2 >= maxdist)
184 d -= surf->extents[1] + 16;
188 if (dist2 >= maxdist)
193 if (surf->dlightframe != r_framecount) // not dynamic until now
195 surf->dlightbits[0] = surf->dlightbits[1] = surf->dlightbits[2] = surf->dlightbits[3] = surf->dlightbits[4] = surf->dlightbits[5] = surf->dlightbits[6] = surf->dlightbits[7] = 0;
196 surf->dlightframe = r_framecount;
198 surf->dlightbits[bitindex] |= bit;
201 if (((surf->flags & SURF_PLANEBACK) == 0) == ((PlaneDist(lightorigin, surf->plane)) >= surf->plane->dist))
203 if (surf->dlightframe != r_framecount) // not dynamic until now
205 surf->dlightbits[0] = surf->dlightbits[1] = surf->dlightbits[2] = surf->dlightbits[3] = surf->dlightbits[4] = surf->dlightbits[5] = surf->dlightbits[6] = surf->dlightbits[7] = 0;
206 surf->dlightframe = r_framecount;
208 surf->dlightbits[bitindex] |= bit;
213 if (node->children[0]->contents >= 0)
215 if (node->children[1]->contents >= 0)
217 R_OldMarkLights (lightorigin, light, bit, bitindex, node->children[0]);
218 node = node->children[1];
223 node = node->children[0];
227 else if (node->children[1]->contents >= 0)
229 node = node->children[1];
234 void R_NoVisMarkLights (vec3_t lightorigin, dlight_t *light, int bit, int bitindex, model_t *model)
236 R_OldMarkLights(lightorigin, light, bit, bitindex, model->nodes + model->hulls[0].firstclipnode);
240 void R_VisMarkLights (vec3_t lightorigin, dlight_t *light, int bit, int bitindex, model_t *model)
242 mleaf_t *pvsleaf = Mod_PointInLeaf (lightorigin, model);
244 if (!r_dynamic.value)
247 if (!pvsleaf->compressed_vis)
248 { // no vis info, so make all visible
249 R_OldMarkLights(lightorigin, light, bit, bitindex, model->nodes + model->hulls[0].firstclipnode);
255 msurface_t *surf, **mark;
257 byte *in = pvsleaf->compressed_vis;
258 int row = (model->numleafs+7)>>3;
259 float low[3], high[3], radius, dist, maxdist;
263 radius = light->radius * 2;
265 // clamp radius to avoid exceeding 32768 entry division table
269 low[0] = lightorigin[0] - radius;low[1] = lightorigin[1] - radius;low[2] = lightorigin[2] - radius;
270 high[0] = lightorigin[0] + radius;high[1] = lightorigin[1] + radius;high[2] = lightorigin[2] + radius;
272 // for comparisons to minimum acceptable light
273 maxdist = radius*radius;
281 l = model->numleafs - (k << 3);
284 for (i=0 ; i<l ; i++)
288 leaf = &model->leafs[(k << 3)+i+1];
289 if (leaf->visframe != r_framecount)
291 if (leaf->contents == CONTENTS_SOLID)
293 // if out of the light radius, skip
294 if (leaf->mins[0] > high[0] || leaf->maxs[0] < low[0]
295 || leaf->mins[1] > high[1] || leaf->maxs[1] < low[1]
296 || leaf->mins[2] > high[2] || leaf->maxs[2] < low[2])
298 if (leaf->dlightframe != r_framecount) // not dynamic until now
300 leaf->dlightbits[0] = leaf->dlightbits[1] = leaf->dlightbits[2] = leaf->dlightbits[3] = leaf->dlightbits[4] = leaf->dlightbits[5] = leaf->dlightbits[6] = leaf->dlightbits[7] = 0;
301 leaf->dlightframe = r_framecount;
303 leaf->dlightbits[bitindex] |= bit;
304 if ((m = leaf->nummarksurfaces))
306 mark = leaf->firstmarksurface;
310 if (surf->visframe != r_framecount || surf->lightframe == lightframe)
312 surf->lightframe = lightframe;
313 dist = PlaneDiff(lightorigin, surf->plane);
314 if (surf->flags & SURF_PLANEBACK)
316 // LordHavoc: make sure it is infront of the surface and not too far away
317 if ((dist >= -0.25f || (surf->flags & SURF_LIGHTBOTHSIDES)) && dist < radius)
320 float dist2, impact[3];
324 impact[0] = light->origin[0] - surf->plane->normal[0] * dist;
325 impact[1] = light->origin[1] - surf->plane->normal[1] * dist;
326 impact[2] = light->origin[2] - surf->plane->normal[2] * dist;
328 d = DotProduct (impact, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3] - surf->texturemins[0];
333 if (dist2 >= maxdist)
338 d -= surf->extents[0] + 16;
342 if (dist2 >= maxdist)
347 d = DotProduct (impact, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3] - surf->texturemins[1];
352 if (dist2 >= maxdist)
357 d -= surf->extents[1] + 16;
361 if (dist2 >= maxdist)
366 if (surf->dlightframe != r_framecount) // not dynamic until now
368 surf->dlightbits[0] = surf->dlightbits[1] = surf->dlightbits[2] = surf->dlightbits[3] = surf->dlightbits[4] = surf->dlightbits[5] = surf->dlightbits[6] = surf->dlightbits[7] = 0;
369 surf->dlightframe = r_framecount;
371 surf->dlightbits[bitindex] |= bit;
393 void R_PushDlights (void)
398 if (!r_dynamic.value)
403 for (i=0 ; i<MAX_DLIGHTS ; i++, l++)
407 // R_MarkLights (l->origin, l, 1<<(i&31), i >> 5, cl.worldmodel->nodes );
408 R_VisMarkLights (l->origin, l, 1<<(i&31), i >> 5, cl.worldmodel);
414 =============================================================================
418 =============================================================================
421 mplane_t *lightplane;
424 extern cvar_t r_ambient;
427 int RecursiveLightPoint (vec3_t color, mnode_t *node, vec3_t start, vec3_t end)
429 float front, back, frac;
433 if (node->contents < 0)
434 return false; // didn't hit anything
436 // calculate mid point
437 front = PlaneDiff (start, node->plane);
438 back = PlaneDiff (end, node->plane);
440 // LordHavoc: optimized recursion
441 if ((back < 0) == (front < 0))
442 // return RecursiveLightPoint (color, node->children[front < 0], start, end);
444 node = node->children[front < 0];
448 frac = front / (front-back);
449 mid[0] = start[0] + (end[0] - start[0])*frac;
450 mid[1] = start[1] + (end[1] - start[1])*frac;
451 mid[2] = start[2] + (end[2] - start[2])*frac;
453 // go down front side
454 if (RecursiveLightPoint (color, node->children[front < 0], start, mid))
455 return true; // hit something
460 // check for impact on this node
461 VectorCopy (mid, lightspot);
462 lightplane = node->plane;
464 surf = cl.worldmodel->surfaces + node->firstsurface;
465 for (i = 0;i < node->numsurfaces;i++, surf++)
467 if (surf->flags & SURF_DRAWTILED)
468 continue; // no lightmaps
470 ds = (int) ((float) DotProduct (mid, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3]);
471 dt = (int) ((float) DotProduct (mid, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3]);
473 if (ds < surf->texturemins[0] || dt < surf->texturemins[1])
476 ds -= surf->texturemins[0];
477 dt -= surf->texturemins[1];
479 if (ds > surf->extents[0] || dt > surf->extents[1])
485 int maps, line3, dsfrac = ds & 15, dtfrac = dt & 15, r00 = 0, g00 = 0, b00 = 0, r01 = 0, g01 = 0, b01 = 0, r10 = 0, g10 = 0, b10 = 0, r11 = 0, g11 = 0, b11 = 0;
487 line3 = ((surf->extents[0]>>4)+1)*3;
489 lightmap = surf->samples + ((dt>>4) * ((surf->extents[0]>>4)+1) + (ds>>4))*3; // LordHavoc: *3 for color
491 for (maps = 0;maps < MAXLIGHTMAPS && surf->styles[maps] != 255;maps++)
493 scale = (float) d_lightstylevalue[surf->styles[maps]] * 1.0 / 256.0;
494 r00 += (float) lightmap[ 0] * scale;g00 += (float) lightmap[ 1] * scale;b00 += (float) lightmap[2] * scale;
495 r01 += (float) lightmap[ 3] * scale;g01 += (float) lightmap[ 4] * scale;b01 += (float) lightmap[5] * scale;
496 r10 += (float) lightmap[line3+0] * scale;g10 += (float) lightmap[line3+1] * scale;b10 += (float) lightmap[line3+2] * scale;
497 r11 += (float) lightmap[line3+3] * scale;g11 += (float) lightmap[line3+4] * scale;b11 += (float) lightmap[line3+5] * scale;
498 lightmap += ((surf->extents[0]>>4)+1) * ((surf->extents[1]>>4)+1)*3; // LordHavoc: *3 for colored lighting
501 color[0] += (float) ((int) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)));
502 color[1] += (float) ((int) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)));
503 color[2] += (float) ((int) ((((((((b11-b10) * dsfrac) >> 4) + b10)-((((b01-b00) * dsfrac) >> 4) + b00)) * dtfrac) >> 4) + ((((b01-b00) * dsfrac) >> 4) + b00)));
505 return true; // success
509 return RecursiveLightPoint (color, node->children[front >= 0], mid, end);
513 void R_LightPoint (vec3_t color, vec3_t p)
517 if (r_fullbright.value || !cl.worldmodel->lightdata)
519 color[0] = color[1] = color[2] = 255;
525 end[2] = p[2] - 2048;
527 color[0] = color[1] = color[2] = r_ambient.value * 2.0f;
528 RecursiveLightPoint (color, cl.worldmodel->nodes, p, end);
531 void SV_LightPoint (vec3_t color, vec3_t p)
535 if (!sv.worldmodel->lightdata)
537 color[0] = color[1] = color[2] = 255;
543 end[2] = p[2] - 2048;
545 color[0] = color[1] = color[2] = 0;
546 RecursiveLightPoint (color, sv.worldmodel->nodes, p, end);
550 int RecursiveLightPoint (vec3_t color, mnode_t *node, float x, float y, float startz, float endz)
552 int side, distz = endz - startz;
557 if (node->contents < 0)
558 return false; // didn't hit anything
560 switch (node->plane->type)
563 node = node->children[x < node->plane->dist];
566 node = node->children[y < node->plane->dist];
569 side = startz < node->plane->dist;
570 if ((endz < node->plane->dist) == side)
572 node = node->children[side];
575 // found an intersection
576 // mid = startz + (endz - startz) * (startz - node->plane->dist) / (startz - endz);
577 // mid = startz + distz * (startz - node->plane->dist) / (-distz);
578 // mid = startz + (-(startz - node->plane->dist));
579 // mid = startz - (startz - node->plane->dist);
580 // mid = startz + node->plane->dist - startz;
581 mid = node->plane->dist;
584 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
585 front += startz * node->plane->normal[2];
586 back += endz * node->plane->normal[2];
587 side = front < node->plane->dist;
588 if ((back < node->plane->dist) == side)
590 node = node->children[side];
593 // found an intersection
594 // mid = startz + (endz - startz) * ((front - node->plane->dist) / ((front - node->plane->dist) - (back - node->plane->dist)));
595 // mid = startz + (endz - startz) * ((front - node->plane->dist) / (front - back));
596 mid = startz + distz * (front - node->plane->dist) / (front - back);
600 // go down front side
601 if (node->children[side]->contents >= 0 && RecursiveLightPoint (color, node->children[side], x, y, startz, mid))
602 return true; // hit something
605 // check for impact on this node
606 if (node->numsurfaces)
613 lightplane = node->plane;
615 surf = cl.worldmodel->surfaces + node->firstsurface;
616 for (i = 0;i < node->numsurfaces;i++, surf++)
618 if (surf->flags & SURF_DRAWTILED)
619 continue; // no lightmaps
621 ds = (int) (x * surf->texinfo->vecs[0][0] + y * surf->texinfo->vecs[0][1] + mid * surf->texinfo->vecs[0][2] + surf->texinfo->vecs[0][3]);
622 dt = (int) (x * surf->texinfo->vecs[1][0] + y * surf->texinfo->vecs[1][1] + mid * surf->texinfo->vecs[1][2] + surf->texinfo->vecs[1][3]);
624 if (ds < surf->texturemins[0] || dt < surf->texturemins[1])
627 ds -= surf->texturemins[0];
628 dt -= surf->texturemins[1];
630 if (ds > surf->extents[0] || dt > surf->extents[1])
636 int maps, line3, size3, dsfrac = ds & 15, dtfrac = dt & 15, scale = 0, r00 = 0, g00 = 0, b00 = 0, r01 = 0, g01 = 0, b01 = 0, r10 = 0, g10 = 0, b10 = 0, r11 = 0, g11 = 0, b11 = 0;
637 line3 = ((surf->extents[0]>>4)+1)*3;
638 size3 = ((surf->extents[0]>>4)+1) * ((surf->extents[1]>>4)+1)*3; // LordHavoc: *3 for colored lighting
640 lightmap = surf->samples + ((dt>>4) * ((surf->extents[0]>>4)+1) + (ds>>4))*3; // LordHavoc: *3 for color
642 for (maps = 0;maps < MAXLIGHTMAPS && surf->styles[maps] != 255;maps++)
644 scale = d_lightstylevalue[surf->styles[maps]];
645 r00 += lightmap[ 0] * scale;g00 += lightmap[ 1] * scale;b00 += lightmap[ 2] * scale;
646 r01 += lightmap[ 3] * scale;g01 += lightmap[ 4] * scale;b01 += lightmap[ 5] * scale;
647 r10 += lightmap[line3+0] * scale;g10 += lightmap[line3+1] * scale;b10 += lightmap[line3+2] * scale;
648 r11 += lightmap[line3+3] * scale;g11 += lightmap[line3+4] * scale;b11 += lightmap[line3+5] * scale;
652 color[0] += (float) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)) * (1.0f / 256.0f);
653 color[1] += (float) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)) * (1.0f / 256.0f);
654 color[2] += (float) ((((((((b11-b10) * dsfrac) >> 4) + b10)-((((b01-b00) * dsfrac) >> 4) + b00)) * dtfrac) >> 4) + ((((b01-b00) * dsfrac) >> 4) + b00)) * (1.0f / 256.0f);
656 return true; // success
661 node = node->children[side ^ 1];
663 distz = endz - startz;
665 // return RecursiveLightPoint (color, node->children[side ^ 1], x, y, mid, endz);
669 void R_DynamicLightPoint(vec3_t color, vec3_t org, int *dlightbits)
673 float brightness, r, f;
675 if (!r_dynamic.value || (!dlightbits[0] && !dlightbits[1] && !dlightbits[2] && !dlightbits[3] && !dlightbits[4] && !dlightbits[5] && !dlightbits[6] && !dlightbits[7]))
678 for (j = 0;j < (MAX_DLIGHTS >> 5);j++)
682 for (i=0 ; i<32 ; i++)
684 if (!((1 << i) & dlightbits[j]))
687 if (!cl_dlights[k].radius)
689 VectorSubtract (org, cl_dlights[k].origin, dist);
690 f = DotProduct(dist, dist) + LIGHTOFFSET;
691 r = cl_dlights[k].radius*cl_dlights[k].radius;
694 brightness = r * 128.0f / f;
695 color[0] += brightness * cl_dlights[k].color[0];
696 color[1] += brightness * cl_dlights[k].color[1];
697 color[2] += brightness * cl_dlights[k].color[2];
704 void R_CompleteLightPoint (vec3_t color, vec3_t p, int dynamic)
707 leaf = Mod_PointInLeaf(p, cl.worldmodel);
708 if (leaf->contents == CONTENTS_SOLID)
710 color[0] = color[1] = color[2] = 0;
714 if (r_fullbright.value || !cl.worldmodel->lightdata)
716 color[0] = color[1] = color[2] = 255;
720 color[0] = color[1] = color[2] = r_ambient.value * 2.0f;
721 RecursiveLightPoint (color, cl.worldmodel->nodes, p[0], p[1], p[2], p[2] - 65536);
724 R_DynamicLightPoint(color, p, leaf->dlightbits);
727 void R_ModelLightPoint (vec3_t color, vec3_t p, int *dlightbits)
730 leaf = Mod_PointInLeaf(p, cl.worldmodel);
731 if (leaf->contents == CONTENTS_SOLID)
733 color[0] = color[1] = color[2] = 0;
734 dlightbits[0] = dlightbits[1] = dlightbits[2] = dlightbits[3] = dlightbits[4] = dlightbits[5] = dlightbits[6] = dlightbits[7] = 0;
738 if (r_fullbright.value || !cl.worldmodel->lightdata)
740 color[0] = color[1] = color[2] = 255;
741 dlightbits[0] = dlightbits[1] = dlightbits[2] = dlightbits[3] = dlightbits[4] = dlightbits[5] = dlightbits[6] = dlightbits[7] = 0;
745 color[0] = color[1] = color[2] = r_ambient.value * 2.0f;
746 RecursiveLightPoint (color, cl.worldmodel->nodes, p[0], p[1], p[2], p[2] - 65536);
748 if (leaf->dlightframe == r_framecount)
750 dlightbits[0] = leaf->dlightbits[0];
751 dlightbits[1] = leaf->dlightbits[1];
752 dlightbits[2] = leaf->dlightbits[2];
753 dlightbits[3] = leaf->dlightbits[3];
754 dlightbits[4] = leaf->dlightbits[4];
755 dlightbits[5] = leaf->dlightbits[5];
756 dlightbits[6] = leaf->dlightbits[6];
757 dlightbits[7] = leaf->dlightbits[7];
760 dlightbits[0] = dlightbits[1] = dlightbits[2] = dlightbits[3] = dlightbits[4] = dlightbits[5] = dlightbits[6] = dlightbits[7] = 0;
763 /* // not currently used
764 void R_DynamicLightPointNoMask(vec3_t color, vec3_t org)
768 float brightness, r, f;
770 if (!r_dynamic.value)
773 for (i=0 ; i<MAX_DLIGHTS ; i++)
775 if (!cl_dlights[i].radius)
777 VectorSubtract (org, cl_dlights[i].origin, dist);
778 f = DotProduct(dist, dist) + LIGHTOFFSET;
779 r = cl_dlights[i].radius*cl_dlights[i].radius;
782 brightness = r * 256.0f / f;
783 if (cl_dlights[i].dark)
784 brightness = -brightness;
785 color[0] += brightness * cl_dlights[i].color[0];
786 color[1] += brightness * cl_dlights[i].color[1];
787 color[2] += brightness * cl_dlights[i].color[2];
793 extern float *aliasvert;
794 extern float *aliasvertnorm;
795 extern byte *aliasvertcolor;
796 extern float modelalpha;
797 void R_LightModel(entity_t *ent, int numverts, vec3_t center, vec3_t basecolor)
799 // LordHavoc: warning: reliance on int being 4 bytes here (of course the d_8to24table relies on that too...)
800 int i, j, nearlights = 0, color;
802 float t, t1, t2, t3, *avn;
808 } nearlight[MAX_DLIGHTS];
809 int modeldlightbits[8];
810 avc = aliasvertcolor;
812 a = (byte) bound((int) 0, (int) (modelalpha * 255.0f), (int) 255);
815 mod[0] = ent->render.colormod[0] * 0.5f;
816 mod[1] = ent->render.colormod[1] * 0.5f;
817 mod[2] = ent->render.colormod[2] * 0.5f;
821 mod[0] = ent->render.colormod[0];
822 mod[1] = ent->render.colormod[1];
823 mod[2] = ent->render.colormod[2];
825 if (ent->render.effects & EF_FULLBRIGHT)
827 ((byte *)&color)[0] = (byte) (255.0f * mod[0]);
828 ((byte *)&color)[1] = (byte) (255.0f * mod[1]);
829 ((byte *)&color)[2] = (byte) (255.0f * mod[2]);
830 ((byte *)&color)[3] = a;
831 for (i = 0;i < numverts;i++)
833 *((int *)avc) = color;
838 R_ModelLightPoint(basecolor, center, modeldlightbits);
840 basecolor[0] *= mod[0];
841 basecolor[1] *= mod[1];
842 basecolor[2] *= mod[2];
843 for (i = 0;i < MAX_DLIGHTS;i++)
845 if (!modeldlightbits[i >> 5])
850 if (!(modeldlightbits[i >> 5] & (1 << (i & 31))))
852 VectorSubtract (center, cl_dlights[i].origin, dist);
853 t2 = DotProduct(dist,dist) + LIGHTOFFSET;
854 t1 = cl_dlights[i].radius*cl_dlights[i].radius;
857 // transform the light into the model's coordinate system
858 if (gl_transform.value)
859 softwareuntransform(cl_dlights[i].origin, nearlight[nearlights].origin);
862 VectorCopy(cl_dlights[i].origin, nearlight[nearlights].origin);
864 nearlight[nearlights].color[0] = cl_dlights[i].color[0] * t1 * mod[0];
865 nearlight[nearlights].color[1] = cl_dlights[i].color[1] * t1 * mod[1];
866 nearlight[nearlights].color[2] = cl_dlights[i].color[2] * t1 * mod[2];
867 if (r_lightmodels.value && (ent == NULL || ent != cl_dlights[i].ent))
872 basecolor[0] += nearlight[nearlights].color[0] * t1;
873 basecolor[1] += nearlight[nearlights].color[1] * t1;
874 basecolor[2] += nearlight[nearlights].color[2] * t1;
878 t1 = bound(0, basecolor[0], 255);r = (byte) t1;
879 t1 = bound(0, basecolor[1], 255);g = (byte) t1;
880 t1 = bound(0, basecolor[2], 255);b = (byte) t1;
881 ((byte *)&color)[0] = r;
882 ((byte *)&color)[1] = g;
883 ((byte *)&color)[2] = b;
884 ((byte *)&color)[3] = a;
893 for (i = 0;i < numverts;i++)
895 VectorSubtract(nearlight[0].origin, av, v);
896 t = DotProduct(avn,v);
899 t /= (DotProduct(v,v) + LIGHTOFFSET);
900 temp = (int) ((float) (basecolor[0] + nearlight[0].color[0] * t));
901 avc[0] = bound(0, temp, 255);
902 temp = (int) ((float) (basecolor[1] + nearlight[0].color[1] * t));
903 avc[1] = bound(0, temp, 255);
904 temp = (int) ((float) (basecolor[2] + nearlight[0].color[2] * t));
905 avc[2] = bound(0, temp, 255);
909 *((int *)avc) = color;
917 for (i = 0;i < numverts;i++)
924 for (j = 0;j < nearlights;j++)
926 VectorSubtract(nearlight[j].origin, av, v);
927 t = DotProduct(avn,v);
930 t /= (DotProduct(v,v) + LIGHTOFFSET);
931 t1 += nearlight[j].color[0] * t;
932 t2 += nearlight[j].color[1] * t;
933 t3 += nearlight[j].color[2] * t;
941 avc[0] = bound(0, i1, 255);
943 avc[1] = bound(0, i2, 255);
945 avc[2] = bound(0, i3, 255);
948 else // dodge the costly float -> int conversions
949 *((int *)avc) = color;
958 for (i = 0;i < numverts;i++)
960 *((int *)avc) = color;