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.
20 // r_surf.c: surface-related refresh code
26 #define MAX_LIGHTMAP_SIZE 256
28 cvar_t r_ambient = {0, "r_ambient", "0", "brighter world cheat (not allowed in multiplayer), value is 0-128"};
29 cvar_t r_drawportals = {0, "r_drawportals", "0", "shows portals (separating polygons) in world interior in quake1 maps"};
30 cvar_t r_lockpvs = {0, "r_lockpvs", "0", "disables pvs switching, allows you to walk around and inspect what is visible from a given location in the map (anything not visible from your current location will not be drawn)"};
31 cvar_t r_lockvisibility = {0, "r_lockvisibility", "0", "disables visibility updates, allows you to walk around and inspect what is visible from a given viewpoint in the map (anything offscreen at the moment this is enabled will not be drawn)"};
32 cvar_t r_useportalculling = {0, "r_useportalculling", "1", "use advanced portal culling visibility method to improve performance over just Potentially Visible Set, provides an even more significant speed improvement in unvised maps"};
33 cvar_t r_q3bsp_renderskydepth = {0, "r_q3bsp_renderskydepth", "0", "draws sky depth masking in q3 maps (as in q1 maps), this means for example that sky polygons can hide other things"};
35 // flag arrays used for visibility checking on world model
36 // (all other entities have no per-surface/per-leaf visibility checks)
37 // TODO: dynamic resize according to r_refdef.worldmodel->brush.num_clusters
38 unsigned char r_pvsbits[(32768+7)>>3];
39 // TODO: dynamic resize according to r_refdef.worldmodel->brush.num_leafs
40 unsigned char r_worldleafvisible[32768];
41 // TODO: dynamic resize according to r_refdef.worldmodel->num_surfaces
42 unsigned char r_worldsurfacevisible[262144];
48 Combine and scale multiple lightmaps into the 8.8 format in blocklights
51 void R_BuildLightMap (const entity_render_t *ent, msurface_t *surface)
53 int smax, tmax, i, size, size3, maps, l;
55 unsigned char *lightmap, *out, *stain;
56 static int intblocklights[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*3]; // LordHavoc: *3 for colored lighting
57 static unsigned char templight[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*4];
59 // update cached lighting info
60 surface->cached_dlight = 0;
62 smax = (surface->lightmapinfo->extents[0]>>4)+1;
63 tmax = (surface->lightmapinfo->extents[1]>>4)+1;
66 lightmap = surface->lightmapinfo->samples;
68 // set to full bright if no light data
70 if (!ent->model->brushq1.lightdata)
72 for (i = 0;i < size3;i++)
78 memset(bl, 0, size3*sizeof(*bl));
80 // add all the lightmaps
82 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++, lightmap += size3)
83 for (scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]], i = 0;i < size3;i++)
84 bl[i] += lightmap[i] * scale;
87 stain = surface->lightmapinfo->stainsamples;
90 // the >> 16 shift adjusts down 8 bits to account for the stainmap
91 // scaling, and remaps the 0-65536 (2x overbright) to 0-256, it will
92 // be doubled during rendering to achieve 2x overbright
93 // (0 = 0.0, 128 = 1.0, 256 = 2.0)
94 if (ent->model->brushq1.lightmaprgba)
96 for (i = 0;i < size;i++)
98 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
99 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
100 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
106 for (i = 0;i < size;i++)
108 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
109 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
110 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
114 R_UpdateTexture(surface->lightmaptexture, templight, surface->lightmapinfo->lightmaporigin[0], surface->lightmapinfo->lightmaporigin[1], smax, tmax);
116 // update the surface's deluxemap if it has one
117 if (surface->deluxemaptexture != r_texture_blanknormalmap)
120 unsigned char *normalmap = surface->lightmapinfo->nmapsamples;
121 lightmap = surface->lightmapinfo->samples;
122 // clear to no normalmap
124 memset(bl, 0, size3*sizeof(*bl));
125 // add all the normalmaps
126 if (lightmap && normalmap)
128 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++, lightmap += size3, normalmap += size3)
130 for (scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]], i = 0;i < size;i++)
132 // add the normalmap with weighting proportional to the style's lightmap intensity
133 l = (int)(VectorLength(lightmap + i*3) * scale);
134 bl[i*3+0] += ((int)normalmap[i*3+0] - 128) * l;
135 bl[i*3+1] += ((int)normalmap[i*3+1] - 128) * l;
136 bl[i*3+2] += ((int)normalmap[i*3+2] - 128) * l;
142 // we simply renormalize the weighted normals to get a valid deluxemap
143 if (ent->model->brushq1.lightmaprgba)
145 for (i = 0;i < size;i++, bl += 3)
149 l = (int)(n[0] * 128 + 128);*out++ = bound(0, l, 255);
150 l = (int)(n[1] * 128 + 128);*out++ = bound(0, l, 255);
151 l = (int)(n[2] * 128 + 128);*out++ = bound(0, l, 255);
157 for (i = 0;i < size;i++, bl += 3)
161 l = (int)(n[0] * 128 + 128);*out++ = bound(0, l, 255);
162 l = (int)(n[1] * 128 + 128);*out++ = bound(0, l, 255);
163 l = (int)(n[2] * 128 + 128);*out++ = bound(0, l, 255);
166 R_UpdateTexture(surface->deluxemaptexture, templight, surface->lightmapinfo->lightmaporigin[0], surface->lightmapinfo->lightmaporigin[1], smax, tmax);
170 void R_StainNode (mnode_t *node, model_t *model, const vec3_t origin, float radius, const float fcolor[8])
172 float ndist, a, ratio, maxdist, maxdist2, maxdist3, invradius, sdtable[256], td, dist2;
173 msurface_t *surface, *endsurface;
174 int i, s, t, smax, tmax, smax3, impacts, impactt, stained;
178 maxdist = radius * radius;
179 invradius = 1.0f / radius;
184 ndist = PlaneDiff(origin, node->plane);
187 node = node->children[0];
192 node = node->children[1];
196 dist2 = ndist * ndist;
197 maxdist3 = maxdist - dist2;
199 if (node->plane->type < 3)
201 VectorCopy(origin, impact);
202 impact[node->plane->type] -= ndist;
206 impact[0] = origin[0] - node->plane->normal[0] * ndist;
207 impact[1] = origin[1] - node->plane->normal[1] * ndist;
208 impact[2] = origin[2] - node->plane->normal[2] * ndist;
211 for (surface = model->data_surfaces + node->firstsurface, endsurface = surface + node->numsurfaces;surface < endsurface;surface++)
213 if (surface->lightmapinfo->stainsamples)
215 smax = (surface->lightmapinfo->extents[0] >> 4) + 1;
216 tmax = (surface->lightmapinfo->extents[1] >> 4) + 1;
218 impacts = DotProduct (impact, surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3] - surface->lightmapinfo->texturemins[0];
219 impactt = DotProduct (impact, surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3] - surface->lightmapinfo->texturemins[1];
221 s = bound(0, impacts, smax * 16) - impacts;
222 t = bound(0, impactt, tmax * 16) - impactt;
223 i = s * s + t * t + dist2;
227 // reduce calculations
228 for (s = 0, i = impacts; s < smax; s++, i -= 16)
229 sdtable[s] = i * i + dist2;
231 bl = surface->lightmapinfo->stainsamples;
236 for (t = 0;t < tmax;t++, i -= 16)
239 // make sure some part of it is visible on this line
242 maxdist2 = maxdist - td;
243 for (s = 0;s < smax;s++)
245 if (sdtable[s] < maxdist2)
247 ratio = lhrandom(0.0f, 1.0f);
248 a = (fcolor[3] + ratio * fcolor[7]) * (1.0f - sqrt(sdtable[s] + td) * invradius);
249 if (a >= (1.0f / 64.0f))
253 bl[0] = (unsigned char) ((float) bl[0] + a * ((fcolor[0] + ratio * fcolor[4]) - (float) bl[0]));
254 bl[1] = (unsigned char) ((float) bl[1] + a * ((fcolor[1] + ratio * fcolor[5]) - (float) bl[1]));
255 bl[2] = (unsigned char) ((float) bl[2] + a * ((fcolor[2] + ratio * fcolor[6]) - (float) bl[2]));
265 // force lightmap upload
267 surface->cached_dlight = true;
271 if (node->children[0]->plane)
273 if (node->children[1]->plane)
275 R_StainNode(node->children[0], model, origin, radius, fcolor);
276 node = node->children[1];
281 node = node->children[0];
285 else if (node->children[1]->plane)
287 node = node->children[1];
292 void R_Stain (const vec3_t origin, float radius, int cr1, int cg1, int cb1, int ca1, int cr2, int cg2, int cb2, int ca2)
296 entity_render_t *ent;
299 if (r_refdef.worldmodel == NULL || !r_refdef.worldmodel->brush.data_nodes || !r_refdef.worldmodel->brushq1.lightdata)
304 fcolor[3] = ca1 * (1.0f / 64.0f);
305 fcolor[4] = cr2 - cr1;
306 fcolor[5] = cg2 - cg1;
307 fcolor[6] = cb2 - cb1;
308 fcolor[7] = (ca2 - ca1) * (1.0f / 64.0f);
310 R_StainNode(r_refdef.worldmodel->brush.data_nodes + r_refdef.worldmodel->brushq1.hulls[0].firstclipnode, r_refdef.worldmodel, origin, radius, fcolor);
312 // look for embedded bmodels
313 for (n = 0;n < cl.num_brushmodel_entities;n++)
315 ent = &cl.entities[cl.brushmodel_entities[n]].render;
317 if (model && model->name[0] == '*')
319 if (model->brush.data_nodes)
321 Matrix4x4_Transform(&ent->inversematrix, origin, org);
322 R_StainNode(model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, model, org, radius, fcolor);
330 =============================================================
334 =============================================================
337 static void R_DrawPortal_Callback(const entity_render_t *ent, int surfacenumber, const rtlight_t *rtlight)
339 const mportal_t *portal = (mportal_t *)ent;
343 float vertex3f[POLYGONELEMENTS_MAXPOINTS*3];
344 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
347 qglDisable(GL_CULL_FACE);
348 R_Mesh_Matrix(&identitymatrix);
350 numpoints = min(portal->numpoints, POLYGONELEMENTS_MAXPOINTS);
352 memset(&m, 0, sizeof(m));
353 m.pointer_vertex = vertex3f;
357 GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f),
358 ((i & 0x0038) >> 3) * (1.0f / 7.0f),
359 ((i & 0x01C0) >> 6) * (1.0f / 7.0f),
361 for (i = 0, v = vertex3f;i < numpoints;i++, v += 3)
362 VectorCopy(portal->points[i].position, v);
363 R_Mesh_Draw(0, numpoints, numpoints - 2, polygonelements);
364 qglEnable(GL_CULL_FACE);
367 // LordHavoc: this is just a nice debugging tool, very slow
368 static void R_DrawPortals(void)
373 model_t *model = r_refdef.worldmodel;
376 for (leafnum = 0;leafnum < r_refdef.worldmodel->brush.num_leafs;leafnum++)
378 if (r_worldleafvisible[leafnum])
380 //for (portalnum = 0, portal = model->brush.data_portals;portalnum < model->brush.num_portals;portalnum++, portal++)
381 for (portal = r_refdef.worldmodel->brush.data_leafs[leafnum].portals;portal;portal = portal->next)
383 if (portal->numpoints <= POLYGONELEMENTS_MAXPOINTS)
384 if (!R_CullBox(portal->mins, portal->maxs))
387 for (i = 0;i < portal->numpoints;i++)
388 VectorAdd(center, portal->points[i].position, center);
389 f = ixtable[portal->numpoints];
390 VectorScale(center, f, center);
391 R_MeshQueue_AddTransparent(center, R_DrawPortal_Callback, (entity_render_t *)portal, leafnum, r_shadow_rtlight);
398 void R_WorldVisibility(void)
403 model_t *model = r_refdef.worldmodel;
408 // if possible find the leaf the view origin is in
409 viewleaf = model->brush.PointInLeaf ? model->brush.PointInLeaf(model, r_vieworigin) : NULL;
410 // if possible fetch the visible cluster bits
411 if (!r_lockpvs.integer && model->brush.FatPVS)
412 model->brush.FatPVS(model, r_vieworigin, 2, r_pvsbits, sizeof(r_pvsbits));
414 if (!r_lockvisibility.integer)
416 // clear the visible surface and leaf flags arrays
417 memset(r_worldsurfacevisible, 0, model->num_surfaces);
418 memset(r_worldleafvisible, 0, model->brush.num_leafs);
420 // if floating around in the void (no pvs data available, and no
421 // portals available), simply use all on-screen leafs.
422 if (!viewleaf || viewleaf->clusterindex < 0)
424 // no visibility method: (used when floating around in the void)
425 // simply cull each leaf to the frustum (view pyramid)
426 // similar to quake's RecursiveWorldNode but without cache misses
427 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
429 // if leaf is in current pvs and on the screen, mark its surfaces
430 if (!R_CullBox(leaf->mins, leaf->maxs))
432 renderstats.world_leafs++;
433 r_worldleafvisible[j] = true;
434 if (leaf->numleafsurfaces)
435 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
436 r_worldsurfacevisible[*mark] = true;
440 // if the user prefers to disable portal culling (testing?), simply
441 // use all on-screen leafs that are in the pvs.
442 else if (!r_useportalculling.integer)
445 // simply check if each leaf is in the Potentially Visible Set,
446 // and cull to frustum (view pyramid)
447 // similar to quake's RecursiveWorldNode but without cache misses
448 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
450 // if leaf is in current pvs and on the screen, mark its surfaces
451 if (CHECKPVSBIT(r_pvsbits, leaf->clusterindex) && !R_CullBox(leaf->mins, leaf->maxs))
453 renderstats.world_leafs++;
454 r_worldleafvisible[j] = true;
455 if (leaf->numleafsurfaces)
456 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
457 r_worldsurfacevisible[*mark] = true;
461 // otherwise use a recursive portal flow, culling each portal to
462 // frustum and checking if the leaf the portal leads to is in the pvs
467 mleaf_t *leafstack[8192];
468 // simple-frustum portal method:
469 // follows portals leading outward from viewleaf, does not venture
470 // offscreen or into leafs that are not visible, faster than
471 // Quake's RecursiveWorldNode and vastly better in unvised maps,
472 // often culls some surfaces that pvs alone would miss
473 // (such as a room in pvs that is hidden behind a wall, but the
474 // passage leading to the room is off-screen)
475 leafstack[0] = viewleaf;
479 renderstats.world_leafs++;
480 leaf = leafstack[--leafstackpos];
481 r_worldleafvisible[leaf - model->brush.data_leafs] = true;
482 // mark any surfaces bounding this leaf
483 if (leaf->numleafsurfaces)
484 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
485 r_worldsurfacevisible[*mark] = true;
486 // follow portals into other leafs
488 // if viewer is behind portal (portal faces outward into the scene)
489 // and the portal polygon's bounding box is on the screen
490 // and the leaf has not been visited yet
491 // and the leaf is visible in the pvs
492 // (the first two checks won't cause as many cache misses as the leaf checks)
493 for (p = leaf->portals;p;p = p->next)
495 renderstats.world_portals++;
496 if (DotProduct(r_vieworigin, p->plane.normal) < (p->plane.dist + 1) && !R_CullBox(p->mins, p->maxs) && !r_worldleafvisible[p->past - model->brush.data_leafs] && CHECKPVSBIT(r_pvsbits, p->past->clusterindex))
497 leafstack[leafstackpos++] = p->past;
503 if (r_drawportals.integer)
507 void R_Q1BSP_DrawSky(entity_render_t *ent)
509 if (ent->model == NULL)
511 R_DrawSurfaces(ent, true);
514 void R_Q1BSP_Draw(entity_render_t *ent)
516 model_t *model = ent->model;
519 R_DrawSurfaces(ent, false);
522 typedef struct r_q1bsp_getlightinfo_s
525 vec3_t relativelightorigin;
528 unsigned char *outleafpvs;
531 unsigned char *outsurfacepvs;
537 const unsigned char *pvs;
539 r_q1bsp_getlightinfo_t;
541 void R_Q1BSP_RecursiveGetLightInfo(r_q1bsp_getlightinfo_t *info, mnode_t *node)
547 mplane_t *plane = node->plane;
548 //if (!BoxesOverlap(info->lightmins, info->lightmaxs, node->mins, node->maxs))
553 sides = ((info->lightmaxs[plane->type] >= plane->dist) | ((info->lightmins[plane->type] < plane->dist) << 1));
555 sides = BoxOnPlaneSide(info->lightmins, info->lightmaxs, plane);
558 R_Q1BSP_RecursiveGetLightInfo(info, node->children[0]);
559 node = node->children[1];
562 return; // ERROR: NAN bounding box!
564 node = node->children[sides - 1];
566 leaf = (mleaf_t *)node;
567 if (info->pvs == NULL || CHECKPVSBIT(info->pvs, leaf->clusterindex))
569 info->outmins[0] = min(info->outmins[0], leaf->mins[0]);
570 info->outmins[1] = min(info->outmins[1], leaf->mins[1]);
571 info->outmins[2] = min(info->outmins[2], leaf->mins[2]);
572 info->outmaxs[0] = max(info->outmaxs[0], leaf->maxs[0]);
573 info->outmaxs[1] = max(info->outmaxs[1], leaf->maxs[1]);
574 info->outmaxs[2] = max(info->outmaxs[2], leaf->maxs[2]);
575 if (info->outleafpvs)
577 int leafindex = leaf - info->model->brush.data_leafs;
578 if (!CHECKPVSBIT(info->outleafpvs, leafindex))
580 SETPVSBIT(info->outleafpvs, leafindex);
581 info->outleaflist[info->outnumleafs++] = leafindex;
584 if (info->outsurfacepvs)
586 int leafsurfaceindex;
587 for (leafsurfaceindex = 0;leafsurfaceindex < leaf->numleafsurfaces;leafsurfaceindex++)
589 int surfaceindex = leaf->firstleafsurface[leafsurfaceindex];
590 if (!CHECKPVSBIT(info->outsurfacepvs, surfaceindex))
592 msurface_t *surface = info->model->data_surfaces + surfaceindex;
593 if (BoxesOverlap(info->lightmins, info->lightmaxs, surface->mins, surface->maxs))
595 int triangleindex, t;
598 for (triangleindex = 0, t = surface->num_firstshadowmeshtriangle, e = info->model->brush.shadowmesh->element3i + t * 3;triangleindex < surface->num_triangles;triangleindex++, t++, e += 3)
600 v[0] = info->model->brush.shadowmesh->vertex3f + e[0] * 3;
601 v[1] = info->model->brush.shadowmesh->vertex3f + e[1] * 3;
602 v[2] = info->model->brush.shadowmesh->vertex3f + e[2] * 3;
603 if (PointInfrontOfTriangle(info->relativelightorigin, v[0], v[1], v[2]) && info->lightmaxs[0] > min(v[0][0], min(v[1][0], v[2][0])) && info->lightmins[0] < max(v[0][0], max(v[1][0], v[2][0])) && info->lightmaxs[1] > min(v[0][1], min(v[1][1], v[2][1])) && info->lightmins[1] < max(v[0][1], max(v[1][1], v[2][1])) && info->lightmaxs[2] > min(v[0][2], min(v[1][2], v[2][2])) && info->lightmins[2] < max(v[0][2], max(v[1][2], v[2][2])))
605 SETPVSBIT(info->outsurfacepvs, surfaceindex);
606 info->outsurfacelist[info->outnumsurfaces++] = surfaceindex;
617 void R_Q1BSP_GetLightInfo(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, vec3_t outmins, vec3_t outmaxs, int *outleaflist, unsigned char *outleafpvs, int *outnumleafspointer, int *outsurfacelist, unsigned char *outsurfacepvs, int *outnumsurfacespointer)
619 r_q1bsp_getlightinfo_t info;
620 VectorCopy(relativelightorigin, info.relativelightorigin);
621 info.lightradius = lightradius;
622 info.lightmins[0] = info.relativelightorigin[0] - info.lightradius;
623 info.lightmins[1] = info.relativelightorigin[1] - info.lightradius;
624 info.lightmins[2] = info.relativelightorigin[2] - info.lightradius;
625 info.lightmaxs[0] = info.relativelightorigin[0] + info.lightradius;
626 info.lightmaxs[1] = info.relativelightorigin[1] + info.lightradius;
627 info.lightmaxs[2] = info.relativelightorigin[2] + info.lightradius;
628 if (ent->model == NULL)
630 VectorCopy(info.lightmins, outmins);
631 VectorCopy(info.lightmaxs, outmaxs);
632 *outnumleafspointer = 0;
633 *outnumsurfacespointer = 0;
636 info.model = ent->model;
637 info.outleaflist = outleaflist;
638 info.outleafpvs = outleafpvs;
639 info.outnumleafs = 0;
640 info.outsurfacelist = outsurfacelist;
641 info.outsurfacepvs = outsurfacepvs;
642 info.outnumsurfaces = 0;
643 VectorCopy(info.relativelightorigin, info.outmins);
644 VectorCopy(info.relativelightorigin, info.outmaxs);
645 memset(outleafpvs, 0, (info.model->brush.num_leafs + 7) >> 3);
646 memset(outsurfacepvs, 0, (info.model->nummodelsurfaces + 7) >> 3);
647 if (info.model->brush.GetPVS)
648 info.pvs = info.model->brush.GetPVS(info.model, info.relativelightorigin);
651 R_UpdateAllTextureInfo(ent);
652 if (r_shadow_compilingrtlight)
654 // use portal recursion for exact light volume culling, and exact surface checking
655 Portal_Visibility(info.model, info.relativelightorigin, info.outleaflist, info.outleafpvs, &info.outnumleafs, info.outsurfacelist, info.outsurfacepvs, &info.outnumsurfaces, NULL, 0, true, info.lightmins, info.lightmaxs, info.outmins, info.outmaxs);
657 else if (r_shadow_realtime_dlight_portalculling.integer)
659 // use portal recursion for exact light volume culling, but not the expensive exact surface checking
660 Portal_Visibility(info.model, info.relativelightorigin, info.outleaflist, info.outleafpvs, &info.outnumleafs, info.outsurfacelist, info.outsurfacepvs, &info.outnumsurfaces, NULL, 0, r_shadow_realtime_dlight_portalculling.integer >= 2, info.lightmins, info.lightmaxs, info.outmins, info.outmaxs);
664 // use BSP recursion as lights are often small
665 R_Q1BSP_RecursiveGetLightInfo(&info, info.model->brush.data_nodes);
668 // limit combined leaf box to light boundaries
669 outmins[0] = max(info.outmins[0] - 1, info.lightmins[0]);
670 outmins[1] = max(info.outmins[1] - 1, info.lightmins[1]);
671 outmins[2] = max(info.outmins[2] - 1, info.lightmins[2]);
672 outmaxs[0] = min(info.outmaxs[0] + 1, info.lightmaxs[0]);
673 outmaxs[1] = min(info.outmaxs[1] + 1, info.lightmaxs[1]);
674 outmaxs[2] = min(info.outmaxs[2] + 1, info.lightmaxs[2]);
676 *outnumleafspointer = info.outnumleafs;
677 *outnumsurfacespointer = info.outnumsurfaces;
680 void R_Q1BSP_CompileShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist)
682 model_t *model = ent->model;
684 int surfacelistindex;
685 float projectdistance = lightradius + model->radius*2 + r_shadow_projectdistance.value;
687 r_shadow_compilingrtlight->static_meshchain_shadow = Mod_ShadowMesh_Begin(r_main_mempool, 32768, 32768, NULL, NULL, NULL, false, false, true);
688 R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
689 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
691 surface = model->data_surfaces + surfacelist[surfacelistindex];
692 texture = surface->texture;
693 if ((texture->basematerialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_WALL)) != MATERIALFLAG_WALL)
695 if ((texture->textureflags & (Q3TEXTUREFLAG_TWOSIDED | Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2)) || (ent->flags & RENDER_NOCULLFACE))
697 R_Shadow_MarkVolumeFromBox(surface->num_firstshadowmeshtriangle, surface->num_triangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, relativelightorigin, r_shadow_compilingrtlight->cullmins, r_shadow_compilingrtlight->cullmaxs, surface->mins, surface->maxs);
699 R_Shadow_VolumeFromList(model->brush.shadowmesh->numverts, model->brush.shadowmesh->numtriangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, model->brush.shadowmesh->neighbor3i, relativelightorigin, lightradius + model->radius + projectdistance, numshadowmark, shadowmarklist);
700 r_shadow_compilingrtlight->static_meshchain_shadow = Mod_ShadowMesh_Finish(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow, false, false);
703 extern float *rsurface_vertex3f;
704 extern float *rsurface_svector3f;
705 extern float *rsurface_tvector3f;
706 extern float *rsurface_normal3f;
707 extern void RSurf_SetVertexPointer(const entity_render_t *ent, const texture_t *texture, const msurface_t *surface, const vec3_t modelorg, qboolean generatenormals, qboolean generatetangents);
709 void R_Q1BSP_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist, const vec3_t lightmins, const vec3_t lightmaxs)
711 model_t *model = ent->model;
713 int surfacelistindex;
714 float projectdistance = lightradius + model->radius*2 + r_shadow_projectdistance.value;
717 // check the box in modelspace, it was already checked in worldspace
718 if (!BoxesOverlap(ent->model->normalmins, ent->model->normalmaxs, lightmins, lightmaxs))
720 R_UpdateAllTextureInfo(ent);
721 if (model->brush.shadowmesh)
723 R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
724 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
726 surface = model->data_surfaces + surfacelist[surfacelistindex];
727 texture = surface->texture->currentframe;
728 if ((texture->currentmaterialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_WALL)) != MATERIALFLAG_WALL)
730 if ((texture->textureflags & (Q3TEXTUREFLAG_TWOSIDED | Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2)) || (ent->flags & RENDER_NOCULLFACE))
732 R_Shadow_MarkVolumeFromBox(surface->num_firstshadowmeshtriangle, surface->num_triangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, relativelightorigin, lightmins, lightmaxs, surface->mins, surface->maxs);
734 R_Shadow_VolumeFromList(model->brush.shadowmesh->numverts, model->brush.shadowmesh->numtriangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, model->brush.shadowmesh->neighbor3i, relativelightorigin, lightradius + model->radius + projectdistance, numshadowmark, shadowmarklist);
738 projectdistance = lightradius + ent->model->radius*2;
739 Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
740 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
742 surface = model->data_surfaces + surfacelist[surfacelistindex];
743 // FIXME: get current skin
744 texture = surface->texture;//R_FetchAliasSkin(ent, surface->groupmesh);
745 if (texture->currentmaterialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT) || !surface->num_triangles)
747 RSurf_SetVertexPointer(ent, texture, surface, modelorg, false, false);
748 // identify lit faces within the bounding box
749 R_Shadow_PrepareShadowMark(surface->groupmesh->num_triangles);
750 R_Shadow_MarkVolumeFromBox(surface->num_firsttriangle, surface->num_triangles, rsurface_vertex3f, surface->groupmesh->data_element3i, relativelightorigin, lightmins, lightmaxs, surface->mins, surface->maxs);
751 R_Shadow_VolumeFromList(surface->groupmesh->num_vertices, surface->groupmesh->num_triangles, rsurface_vertex3f, surface->groupmesh->data_element3i, surface->groupmesh->data_neighbor3i, relativelightorigin, projectdistance, numshadowmark, shadowmarklist);
756 static void R_Q1BSP_DrawLight_TransparentCallback(const entity_render_t *ent, int surfacenumber, const rtlight_t *rtlight)
758 msurface_t *surface = ent->model->data_surfaces + surfacenumber;
759 texture_t *texture = surface->texture;
760 R_UpdateTextureInfo(ent, texture);
761 texture = texture->currentframe;
762 R_Shadow_RenderMode_Begin();
763 R_Shadow_RenderMode_ActiveLight((rtlight_t *)rtlight);
764 R_Shadow_RenderMode_Lighting(false, true);
765 R_Shadow_SetupEntityLight(ent);
766 R_Shadow_RenderSurfacesLighting(ent, texture, 1, &surface);
767 R_Shadow_RenderMode_End();
770 static void R_Q1BSP_DrawLight_TransparentBatch(const entity_render_t *ent, texture_t *texture, int batchnumsurfaces, msurface_t **batchsurfacelist)
772 int batchsurfaceindex;
773 msurface_t *batchsurface;
774 vec3_t tempcenter, center;
775 for (batchsurfaceindex = 0;batchsurfaceindex < batchnumsurfaces;batchsurfaceindex++)
777 batchsurface = batchsurfacelist[batchsurfaceindex];
778 tempcenter[0] = (batchsurface->mins[0] + batchsurface->maxs[0]) * 0.5f;
779 tempcenter[1] = (batchsurface->mins[1] + batchsurface->maxs[1]) * 0.5f;
780 tempcenter[2] = (batchsurface->mins[2] + batchsurface->maxs[2]) * 0.5f;
781 Matrix4x4_Transform(&ent->matrix, tempcenter, center);
782 R_MeshQueue_AddTransparent(texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST ? r_vieworigin : center, R_Q1BSP_DrawLight_TransparentCallback, ent, batchsurface - ent->model->data_surfaces, r_shadow_rtlight);
786 #define RSURF_MAX_BATCHSURFACES 1024
788 void R_Q1BSP_DrawLight(entity_render_t *ent, int numsurfaces, const int *surfacelist)
790 model_t *model = ent->model;
793 int surfacelistindex, batchnumsurfaces;
794 msurface_t *batchsurfacelist[RSURF_MAX_BATCHSURFACES];
798 R_UpdateAllTextureInfo(ent);
799 Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
803 batchnumsurfaces = 0;
804 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
806 if ((ent == r_refdef.worldentity && !r_worldsurfacevisible[surfacelist[surfacelistindex]]))
808 surface = model->data_surfaces + surfacelist[surfacelistindex];
809 renderstats.lights_lighttriangles += surface->num_triangles;
810 if (tex != surface->texture)
812 if (batchnumsurfaces > 0)
814 if (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT)
815 R_Q1BSP_DrawLight_TransparentBatch(ent, texture, batchnumsurfaces, batchsurfacelist);
817 R_Shadow_RenderSurfacesLighting(ent, texture, batchnumsurfaces, batchsurfacelist);
818 batchnumsurfaces = 0;
820 tex = surface->texture;
821 texture = surface->texture->currentframe;
822 skip = (texture->currentmaterialflags & MATERIALFLAG_SKY) != 0;
826 if (!skip && surface->num_triangles)
828 if (batchnumsurfaces == RSURF_MAX_BATCHSURFACES)
830 if (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT)
831 R_Q1BSP_DrawLight_TransparentBatch(ent, texture, batchnumsurfaces, batchsurfacelist);
833 R_Shadow_RenderSurfacesLighting(ent, texture, batchnumsurfaces, batchsurfacelist);
834 batchnumsurfaces = 0;
836 batchsurfacelist[batchnumsurfaces++] = surface;
839 if (batchnumsurfaces > 0)
841 if (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT)
842 R_Q1BSP_DrawLight_TransparentBatch(ent, texture, batchnumsurfaces, batchsurfacelist);
844 R_Shadow_RenderSurfacesLighting(ent, texture, batchnumsurfaces, batchsurfacelist);
845 batchnumsurfaces = 0;
847 qglEnable(GL_CULL_FACE);
851 void R_ReplaceWorldTexture (void)
856 const char *r, *newt;
857 m = r_refdef.worldmodel;
861 Con_Print("r_replacemaptexture <texname> <newtexname> - replaces texture\n");
862 Con_Print("r_replacemaptexture <texname> - switch back to default texture\n");
865 if(!cl.islocalgame || !cl.worldmodel)
867 Con_Print("This command works only in singleplayer\n");
874 for(i=0,t=m->data_textures;i<m->num_textures;i++,t++)
876 if(t->width && !strcasecmp(t->name, r))
878 if(Mod_LoadSkinFrame(&t->skin, (char*)newt, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, r_fullbrights.integer))
880 Con_Printf("%s replaced with %s\n", r, newt);
885 Con_Printf("%s was not found\n", newt);
886 Mod_LoadSkinFrame(&t->skin, (char*)r, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, r_fullbrights.integer);//back to default
894 void R_ListWorldTextures (void)
899 m = r_refdef.worldmodel;
901 Con_Print("Worldmodel textures :\n");
902 for(i=0,t=m->data_textures;i<m->num_textures;i++,t++)
903 if(t->skin.base != r_texture_notexture)
904 Con_Printf("%s\n", t->name);
908 static void gl_surf_start(void)
912 static void gl_surf_shutdown(void)
916 static void gl_surf_newmap(void)
921 void GL_Surf_Init(void)
924 Cvar_RegisterVariable(&r_ambient);
925 Cvar_RegisterVariable(&r_drawportals);
926 Cvar_RegisterVariable(&r_lockpvs);
927 Cvar_RegisterVariable(&r_lockvisibility);
928 Cvar_RegisterVariable(&r_useportalculling);
929 Cvar_RegisterVariable(&r_q3bsp_renderskydepth);
931 Cmd_AddCommand ("r_replacemaptexture", R_ReplaceWorldTexture, "override a map texture for testing purposes"); // By [515]
932 Cmd_AddCommand ("r_listmaptextures", R_ListWorldTextures, "list all textures used by the current map"); // By [515]
934 //R_RegisterModule("GL_Surf", gl_surf_start, gl_surf_shutdown, gl_surf_newmap);