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 model_t *model = ent->model;
57 static int intblocklights[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*3]; // LordHavoc: *3 for colored lighting
58 static unsigned char templight[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*4];
60 // update cached lighting info
61 surface->cached_dlight = 0;
63 smax = (surface->lightmapinfo->extents[0]>>4)+1;
64 tmax = (surface->lightmapinfo->extents[1]>>4)+1;
67 lightmap = surface->lightmapinfo->samples;
69 // set to full bright if no light data
71 if (!model->brushq1.lightdata)
73 for (i = 0;i < size3;i++)
79 memset(bl, 0, size3*sizeof(*bl));
81 // add all the lightmaps
83 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++, lightmap += size3)
84 for (scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]], i = 0;i < size3;i++)
85 bl[i] += lightmap[i] * scale;
88 stain = surface->lightmapinfo->stainsamples;
91 // the >> 16 shift adjusts down 8 bits to account for the stainmap
92 // scaling, and remaps the 0-65536 (2x overbright) to 0-256, it will
93 // be doubled during rendering to achieve 2x overbright
94 // (0 = 0.0, 128 = 1.0, 256 = 2.0)
95 if (model->brushq1.lightmaprgba)
97 for (i = 0;i < size;i++)
99 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
100 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
101 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
107 for (i = 0;i < size;i++)
109 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
110 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
111 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
115 R_UpdateTexture(surface->lightmaptexture, templight, surface->lightmapinfo->lightmaporigin[0], surface->lightmapinfo->lightmaporigin[1], smax, tmax);
117 // update the surface's deluxemap if it has one
118 if (surface->deluxemaptexture != r_texture_blanknormalmap)
121 unsigned char *normalmap = surface->lightmapinfo->nmapsamples;
122 lightmap = surface->lightmapinfo->samples;
123 // clear to no normalmap
125 memset(bl, 0, size3*sizeof(*bl));
126 // add all the normalmaps
127 if (lightmap && normalmap)
129 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++, lightmap += size3, normalmap += size3)
131 for (scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]], i = 0;i < size;i++)
133 // add the normalmap with weighting proportional to the style's lightmap intensity
134 l = (int)(VectorLength(lightmap + i*3) * scale);
135 bl[i*3+0] += ((int)normalmap[i*3+0] - 128) * l;
136 bl[i*3+1] += ((int)normalmap[i*3+1] - 128) * l;
137 bl[i*3+2] += ((int)normalmap[i*3+2] - 128) * l;
143 // we simply renormalize the weighted normals to get a valid deluxemap
144 if (model->brushq1.lightmaprgba)
146 for (i = 0;i < size;i++, bl += 3)
150 l = (int)(n[0] * 128 + 128);*out++ = bound(0, l, 255);
151 l = (int)(n[1] * 128 + 128);*out++ = bound(0, l, 255);
152 l = (int)(n[2] * 128 + 128);*out++ = bound(0, l, 255);
158 for (i = 0;i < size;i++, bl += 3)
162 l = (int)(n[0] * 128 + 128);*out++ = bound(0, l, 255);
163 l = (int)(n[1] * 128 + 128);*out++ = bound(0, l, 255);
164 l = (int)(n[2] * 128 + 128);*out++ = bound(0, l, 255);
167 R_UpdateTexture(surface->deluxemaptexture, templight, surface->lightmapinfo->lightmaporigin[0], surface->lightmapinfo->lightmaporigin[1], smax, tmax);
171 void R_StainNode (mnode_t *node, model_t *model, const vec3_t origin, float radius, const float fcolor[8])
173 float ndist, a, ratio, maxdist, maxdist2, maxdist3, invradius, sdtable[256], td, dist2;
174 msurface_t *surface, *endsurface;
175 int i, s, t, smax, tmax, smax3, impacts, impactt, stained;
179 maxdist = radius * radius;
180 invradius = 1.0f / radius;
185 ndist = PlaneDiff(origin, node->plane);
188 node = node->children[0];
193 node = node->children[1];
197 dist2 = ndist * ndist;
198 maxdist3 = maxdist - dist2;
200 if (node->plane->type < 3)
202 VectorCopy(origin, impact);
203 impact[node->plane->type] -= ndist;
207 impact[0] = origin[0] - node->plane->normal[0] * ndist;
208 impact[1] = origin[1] - node->plane->normal[1] * ndist;
209 impact[2] = origin[2] - node->plane->normal[2] * ndist;
212 for (surface = model->data_surfaces + node->firstsurface, endsurface = surface + node->numsurfaces;surface < endsurface;surface++)
214 if (surface->lightmapinfo->stainsamples)
216 smax = (surface->lightmapinfo->extents[0] >> 4) + 1;
217 tmax = (surface->lightmapinfo->extents[1] >> 4) + 1;
219 impacts = DotProduct (impact, surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3] - surface->lightmapinfo->texturemins[0];
220 impactt = DotProduct (impact, surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3] - surface->lightmapinfo->texturemins[1];
222 s = bound(0, impacts, smax * 16) - impacts;
223 t = bound(0, impactt, tmax * 16) - impactt;
224 i = s * s + t * t + dist2;
228 // reduce calculations
229 for (s = 0, i = impacts; s < smax; s++, i -= 16)
230 sdtable[s] = i * i + dist2;
232 bl = surface->lightmapinfo->stainsamples;
237 for (t = 0;t < tmax;t++, i -= 16)
240 // make sure some part of it is visible on this line
243 maxdist2 = maxdist - td;
244 for (s = 0;s < smax;s++)
246 if (sdtable[s] < maxdist2)
248 ratio = lhrandom(0.0f, 1.0f);
249 a = (fcolor[3] + ratio * fcolor[7]) * (1.0f - sqrt(sdtable[s] + td) * invradius);
250 if (a >= (1.0f / 64.0f))
254 bl[0] = (unsigned char) ((float) bl[0] + a * ((fcolor[0] + ratio * fcolor[4]) - (float) bl[0]));
255 bl[1] = (unsigned char) ((float) bl[1] + a * ((fcolor[1] + ratio * fcolor[5]) - (float) bl[1]));
256 bl[2] = (unsigned char) ((float) bl[2] + a * ((fcolor[2] + ratio * fcolor[6]) - (float) bl[2]));
266 // force lightmap upload
268 surface->cached_dlight = true;
272 if (node->children[0]->plane)
274 if (node->children[1]->plane)
276 R_StainNode(node->children[0], model, origin, radius, fcolor);
277 node = node->children[1];
282 node = node->children[0];
286 else if (node->children[1]->plane)
288 node = node->children[1];
293 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)
297 entity_render_t *ent;
300 if (r_refdef.worldmodel == NULL || !r_refdef.worldmodel->brush.data_nodes || !r_refdef.worldmodel->brushq1.lightdata)
305 fcolor[3] = ca1 * (1.0f / 64.0f);
306 fcolor[4] = cr2 - cr1;
307 fcolor[5] = cg2 - cg1;
308 fcolor[6] = cb2 - cb1;
309 fcolor[7] = (ca2 - ca1) * (1.0f / 64.0f);
311 R_StainNode(r_refdef.worldmodel->brush.data_nodes + r_refdef.worldmodel->brushq1.hulls[0].firstclipnode, r_refdef.worldmodel, origin, radius, fcolor);
313 // look for embedded bmodels
314 for (n = 0;n < cl.num_brushmodel_entities;n++)
316 ent = &cl.entities[cl.brushmodel_entities[n]].render;
318 if (model && model->name[0] == '*')
320 if (model->brush.data_nodes)
322 Matrix4x4_Transform(&ent->inversematrix, origin, org);
323 R_StainNode(model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, model, org, radius, fcolor);
331 =============================================================
335 =============================================================
338 static void R_DrawPortal_Callback(const entity_render_t *ent, int surfacenumber, const rtlight_t *rtlight)
340 const mportal_t *portal = (mportal_t *)ent;
344 float vertex3f[POLYGONELEMENTS_MAXPOINTS*3];
345 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
348 qglDisable(GL_CULL_FACE);
349 R_Mesh_Matrix(&identitymatrix);
351 numpoints = min(portal->numpoints, POLYGONELEMENTS_MAXPOINTS);
353 memset(&m, 0, sizeof(m));
354 m.pointer_vertex = vertex3f;
358 GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f),
359 ((i & 0x0038) >> 3) * (1.0f / 7.0f),
360 ((i & 0x01C0) >> 6) * (1.0f / 7.0f),
362 for (i = 0, v = vertex3f;i < numpoints;i++, v += 3)
363 VectorCopy(portal->points[i].position, v);
364 R_Mesh_Draw(0, numpoints, numpoints - 2, polygonelements);
365 qglEnable(GL_CULL_FACE);
368 // LordHavoc: this is just a nice debugging tool, very slow
369 static void R_DrawPortals(void)
374 model_t *model = r_refdef.worldmodel;
377 for (leafnum = 0;leafnum < r_refdef.worldmodel->brush.num_leafs;leafnum++)
379 if (r_worldleafvisible[leafnum])
381 //for (portalnum = 0, portal = model->brush.data_portals;portalnum < model->brush.num_portals;portalnum++, portal++)
382 for (portal = r_refdef.worldmodel->brush.data_leafs[leafnum].portals;portal;portal = portal->next)
384 if (portal->numpoints <= POLYGONELEMENTS_MAXPOINTS)
385 if (!R_CullBox(portal->mins, portal->maxs))
388 for (i = 0;i < portal->numpoints;i++)
389 VectorAdd(center, portal->points[i].position, center);
390 f = ixtable[portal->numpoints];
391 VectorScale(center, f, center);
392 R_MeshQueue_AddTransparent(center, R_DrawPortal_Callback, (entity_render_t *)portal, leafnum, r_shadow_rtlight);
399 void R_WorldVisibility(void)
404 model_t *model = r_refdef.worldmodel;
409 // if possible find the leaf the view origin is in
410 viewleaf = model->brush.PointInLeaf ? model->brush.PointInLeaf(model, r_vieworigin) : NULL;
411 // if possible fetch the visible cluster bits
412 if (!r_lockpvs.integer && model->brush.FatPVS)
413 model->brush.FatPVS(model, r_vieworigin, 2, r_pvsbits, sizeof(r_pvsbits));
415 if (!r_lockvisibility.integer)
417 // clear the visible surface and leaf flags arrays
418 memset(r_worldsurfacevisible, 0, model->num_surfaces);
419 memset(r_worldleafvisible, 0, model->brush.num_leafs);
421 // if floating around in the void (no pvs data available, and no
422 // portals available), simply use all on-screen leafs.
423 if (!viewleaf || viewleaf->clusterindex < 0)
425 // no visibility method: (used when floating around in the void)
426 // simply cull each leaf to the frustum (view pyramid)
427 // similar to quake's RecursiveWorldNode but without cache misses
428 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
430 // if leaf is in current pvs and on the screen, mark its surfaces
431 if (!R_CullBox(leaf->mins, leaf->maxs))
433 renderstats.world_leafs++;
434 r_worldleafvisible[j] = true;
435 if (leaf->numleafsurfaces)
436 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
437 r_worldsurfacevisible[*mark] = true;
441 // if the user prefers to disable portal culling (testing?), simply
442 // use all on-screen leafs that are in the pvs.
443 else if (!r_useportalculling.integer)
446 // simply check if each leaf is in the Potentially Visible Set,
447 // and cull to frustum (view pyramid)
448 // similar to quake's RecursiveWorldNode but without cache misses
449 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
451 // if leaf is in current pvs and on the screen, mark its surfaces
452 if (CHECKPVSBIT(r_pvsbits, leaf->clusterindex) && !R_CullBox(leaf->mins, leaf->maxs))
454 renderstats.world_leafs++;
455 r_worldleafvisible[j] = true;
456 if (leaf->numleafsurfaces)
457 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
458 r_worldsurfacevisible[*mark] = true;
462 // otherwise use a recursive portal flow, culling each portal to
463 // frustum and checking if the leaf the portal leads to is in the pvs
468 mleaf_t *leafstack[8192];
469 // simple-frustum portal method:
470 // follows portals leading outward from viewleaf, does not venture
471 // offscreen or into leafs that are not visible, faster than
472 // Quake's RecursiveWorldNode and vastly better in unvised maps,
473 // often culls some surfaces that pvs alone would miss
474 // (such as a room in pvs that is hidden behind a wall, but the
475 // passage leading to the room is off-screen)
476 leafstack[0] = viewleaf;
480 renderstats.world_leafs++;
481 leaf = leafstack[--leafstackpos];
482 r_worldleafvisible[leaf - model->brush.data_leafs] = true;
483 // mark any surfaces bounding this leaf
484 if (leaf->numleafsurfaces)
485 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
486 r_worldsurfacevisible[*mark] = true;
487 // follow portals into other leafs
489 // if viewer is behind portal (portal faces outward into the scene)
490 // and the portal polygon's bounding box is on the screen
491 // and the leaf has not been visited yet
492 // and the leaf is visible in the pvs
493 // (the first two checks won't cause as many cache misses as the leaf checks)
494 for (p = leaf->portals;p;p = p->next)
496 renderstats.world_portals++;
497 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))
498 leafstack[leafstackpos++] = p->past;
504 if (r_drawportals.integer)
508 void R_Q1BSP_DrawSky(entity_render_t *ent)
510 if (ent->model == NULL)
512 R_DrawSurfaces(ent, true);
515 void R_Q1BSP_Draw(entity_render_t *ent)
517 model_t *model = ent->model;
520 R_DrawSurfaces(ent, false);
523 typedef struct r_q1bsp_getlightinfo_s
526 vec3_t relativelightorigin;
529 unsigned char *outleafpvs;
532 unsigned char *outsurfacepvs;
538 const unsigned char *pvs;
540 r_q1bsp_getlightinfo_t;
542 void R_Q1BSP_RecursiveGetLightInfo(r_q1bsp_getlightinfo_t *info, mnode_t *node)
548 mplane_t *plane = node->plane;
549 //if (!BoxesOverlap(info->lightmins, info->lightmaxs, node->mins, node->maxs))
554 sides = ((info->lightmaxs[plane->type] >= plane->dist) | ((info->lightmins[plane->type] < plane->dist) << 1));
556 sides = BoxOnPlaneSide(info->lightmins, info->lightmaxs, plane);
559 R_Q1BSP_RecursiveGetLightInfo(info, node->children[0]);
560 node = node->children[1];
563 return; // ERROR: NAN bounding box!
565 node = node->children[sides - 1];
567 leaf = (mleaf_t *)node;
568 if (info->pvs == NULL || CHECKPVSBIT(info->pvs, leaf->clusterindex))
570 info->outmins[0] = min(info->outmins[0], leaf->mins[0]);
571 info->outmins[1] = min(info->outmins[1], leaf->mins[1]);
572 info->outmins[2] = min(info->outmins[2], leaf->mins[2]);
573 info->outmaxs[0] = max(info->outmaxs[0], leaf->maxs[0]);
574 info->outmaxs[1] = max(info->outmaxs[1], leaf->maxs[1]);
575 info->outmaxs[2] = max(info->outmaxs[2], leaf->maxs[2]);
576 if (info->outleafpvs)
578 int leafindex = leaf - info->model->brush.data_leafs;
579 if (!CHECKPVSBIT(info->outleafpvs, leafindex))
581 SETPVSBIT(info->outleafpvs, leafindex);
582 info->outleaflist[info->outnumleafs++] = leafindex;
585 if (info->outsurfacepvs)
587 int leafsurfaceindex;
588 for (leafsurfaceindex = 0;leafsurfaceindex < leaf->numleafsurfaces;leafsurfaceindex++)
590 int surfaceindex = leaf->firstleafsurface[leafsurfaceindex];
591 if (!CHECKPVSBIT(info->outsurfacepvs, surfaceindex))
593 msurface_t *surface = info->model->data_surfaces + surfaceindex;
594 if (BoxesOverlap(info->lightmins, info->lightmaxs, surface->mins, surface->maxs))
596 int triangleindex, t;
599 for (triangleindex = 0, t = surface->num_firstshadowmeshtriangle, e = info->model->brush.shadowmesh->element3i + t * 3;triangleindex < surface->num_triangles;triangleindex++, t++, e += 3)
601 v[0] = info->model->brush.shadowmesh->vertex3f + e[0] * 3;
602 v[1] = info->model->brush.shadowmesh->vertex3f + e[1] * 3;
603 v[2] = info->model->brush.shadowmesh->vertex3f + e[2] * 3;
604 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])))
606 SETPVSBIT(info->outsurfacepvs, surfaceindex);
607 info->outsurfacelist[info->outnumsurfaces++] = surfaceindex;
618 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)
620 r_q1bsp_getlightinfo_t info;
621 VectorCopy(relativelightorigin, info.relativelightorigin);
622 info.lightradius = lightradius;
623 info.lightmins[0] = info.relativelightorigin[0] - info.lightradius;
624 info.lightmins[1] = info.relativelightorigin[1] - info.lightradius;
625 info.lightmins[2] = info.relativelightorigin[2] - info.lightradius;
626 info.lightmaxs[0] = info.relativelightorigin[0] + info.lightradius;
627 info.lightmaxs[1] = info.relativelightorigin[1] + info.lightradius;
628 info.lightmaxs[2] = info.relativelightorigin[2] + info.lightradius;
629 if (ent->model == NULL)
631 VectorCopy(info.lightmins, outmins);
632 VectorCopy(info.lightmaxs, outmaxs);
633 *outnumleafspointer = 0;
634 *outnumsurfacespointer = 0;
637 info.model = ent->model;
638 info.outleaflist = outleaflist;
639 info.outleafpvs = outleafpvs;
640 info.outnumleafs = 0;
641 info.outsurfacelist = outsurfacelist;
642 info.outsurfacepvs = outsurfacepvs;
643 info.outnumsurfaces = 0;
644 VectorCopy(info.relativelightorigin, info.outmins);
645 VectorCopy(info.relativelightorigin, info.outmaxs);
646 memset(outleafpvs, 0, (info.model->brush.num_leafs + 7) >> 3);
647 memset(outsurfacepvs, 0, (info.model->nummodelsurfaces + 7) >> 3);
648 if (info.model->brush.GetPVS)
649 info.pvs = info.model->brush.GetPVS(info.model, info.relativelightorigin);
652 R_UpdateAllTextureInfo(ent);
653 if (r_shadow_compilingrtlight)
655 // use portal recursion for exact light volume culling, and exact surface checking
656 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);
658 else if (r_shadow_realtime_dlight_portalculling.integer)
660 // use portal recursion for exact light volume culling, but not the expensive exact surface checking
661 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);
665 // use BSP recursion as lights are often small
666 R_Q1BSP_RecursiveGetLightInfo(&info, info.model->brush.data_nodes);
669 // limit combined leaf box to light boundaries
670 outmins[0] = max(info.outmins[0] - 1, info.lightmins[0]);
671 outmins[1] = max(info.outmins[1] - 1, info.lightmins[1]);
672 outmins[2] = max(info.outmins[2] - 1, info.lightmins[2]);
673 outmaxs[0] = min(info.outmaxs[0] + 1, info.lightmaxs[0]);
674 outmaxs[1] = min(info.outmaxs[1] + 1, info.lightmaxs[1]);
675 outmaxs[2] = min(info.outmaxs[2] + 1, info.lightmaxs[2]);
677 *outnumleafspointer = info.outnumleafs;
678 *outnumsurfacespointer = info.outnumsurfaces;
681 void R_Q1BSP_CompileShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist)
683 model_t *model = ent->model;
685 int surfacelistindex;
686 float projectdistance = lightradius + model->radius*2 + r_shadow_projectdistance.value;
688 r_shadow_compilingrtlight->static_meshchain_shadow = Mod_ShadowMesh_Begin(r_main_mempool, 32768, 32768, NULL, NULL, NULL, false, false, true);
689 R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
690 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
692 surface = model->data_surfaces + surfacelist[surfacelistindex];
693 texture = surface->texture;
694 if ((texture->basematerialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_WALL)) != MATERIALFLAG_WALL)
696 if ((texture->textureflags & (Q3TEXTUREFLAG_TWOSIDED | Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2)) || (ent->flags & RENDER_NOCULLFACE))
698 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);
700 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);
701 r_shadow_compilingrtlight->static_meshchain_shadow = Mod_ShadowMesh_Finish(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow, false, false);
704 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)
706 model_t *model = ent->model;
708 int surfacelistindex;
709 float projectdistance = lightradius + model->radius*2 + r_shadow_projectdistance.value;
711 texture_t *texture, *currentexture = NULL;
712 // check the box in modelspace, it was already checked in worldspace
713 if (!BoxesOverlap(model->normalmins, model->normalmaxs, lightmins, lightmaxs))
715 R_UpdateAllTextureInfo(ent);
716 if (model->brush.shadowmesh)
718 R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
719 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
721 surface = model->data_surfaces + surfacelist[surfacelistindex];
722 texture = surface->texture->currentframe;
723 if ((texture->currentmaterialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_WALL)) != MATERIALFLAG_WALL)
725 if ((texture->textureflags & (Q3TEXTUREFLAG_TWOSIDED | Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2)) || (ent->flags & RENDER_NOCULLFACE))
727 R_Shadow_MarkVolumeFromBox(surface->num_firstshadowmeshtriangle, surface->num_triangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, relativelightorigin, lightmins, lightmaxs, surface->mins, surface->maxs);
729 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);
733 projectdistance = lightradius + model->radius*2;
734 Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
735 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
737 surface = model->data_surfaces + surfacelist[surfacelistindex];
738 texture = surface->texture->currentframe;
739 if (texture->currentmaterialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT) || !surface->num_triangles)
741 if (currentexture != texture)
743 currentexture = texture;
744 RSurf_PrepareForBatch(ent, texture, modelorg);
745 RSurf_SetPointersForPass(false, false);
747 if (rsurface_dynamicvertex)
748 RSurf_PrepareDynamicSurfaceVertices(surface);
749 // identify lit faces within the bounding box
750 R_Shadow_PrepareShadowMark(model->surfmesh.num_triangles);
751 R_Shadow_MarkVolumeFromBox(surface->num_firsttriangle, surface->num_triangles, rsurface_vertex3f, model->surfmesh.data_element3i, relativelightorigin, lightmins, lightmaxs, surface->mins, surface->maxs);
752 R_Shadow_VolumeFromList(model->surfmesh.num_vertices, model->surfmesh.num_triangles, rsurface_vertex3f, model->surfmesh.data_element3i, model->surfmesh.data_neighbor3i, relativelightorigin, projectdistance, numshadowmark, shadowmarklist);
757 static void R_Q1BSP_DrawLight_TransparentCallback(const entity_render_t *ent, int surfacenumber, const rtlight_t *rtlight)
759 msurface_t *surface = ent->model->data_surfaces + surfacenumber;
760 texture_t *texture = surface->texture;
761 R_UpdateTextureInfo(ent, texture);
762 texture = texture->currentframe;
763 R_Shadow_RenderMode_Begin();
764 R_Shadow_RenderMode_ActiveLight((rtlight_t *)rtlight);
765 R_Shadow_RenderMode_Lighting(false, true);
766 R_Shadow_SetupEntityLight(ent);
767 R_Shadow_RenderSurfacesLighting(ent, texture, 1, &surface);
768 R_Shadow_RenderMode_End();
771 static void R_Q1BSP_DrawLight_TransparentBatch(const entity_render_t *ent, texture_t *texture, int batchnumsurfaces, msurface_t **batchsurfacelist)
773 int batchsurfaceindex;
774 model_t *model = ent->model;
775 msurface_t *batchsurface;
776 vec3_t tempcenter, center;
777 for (batchsurfaceindex = 0;batchsurfaceindex < batchnumsurfaces;batchsurfaceindex++)
779 batchsurface = batchsurfacelist[batchsurfaceindex];
780 tempcenter[0] = (batchsurface->mins[0] + batchsurface->maxs[0]) * 0.5f;
781 tempcenter[1] = (batchsurface->mins[1] + batchsurface->maxs[1]) * 0.5f;
782 tempcenter[2] = (batchsurface->mins[2] + batchsurface->maxs[2]) * 0.5f;
783 Matrix4x4_Transform(&ent->matrix, tempcenter, center);
784 R_MeshQueue_AddTransparent(texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST ? r_vieworigin : center, R_Q1BSP_DrawLight_TransparentCallback, ent, batchsurface - model->data_surfaces, r_shadow_rtlight);
788 #define RSURF_MAX_BATCHSURFACES 1024
790 void R_Q1BSP_DrawLight(entity_render_t *ent, int numsurfaces, const int *surfacelist)
792 model_t *model = ent->model;
795 int surfacelistindex, batchnumsurfaces;
796 msurface_t *batchsurfacelist[RSURF_MAX_BATCHSURFACES];
800 R_UpdateAllTextureInfo(ent);
801 Matrix4x4_Transform(&ent->inversematrix, r_vieworigin, modelorg);
805 batchnumsurfaces = 0;
806 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
808 if ((ent == r_refdef.worldentity && !r_worldsurfacevisible[surfacelist[surfacelistindex]]))
810 surface = model->data_surfaces + surfacelist[surfacelistindex];
811 renderstats.lights_lighttriangles += surface->num_triangles;
812 if (tex != surface->texture)
814 if (batchnumsurfaces > 0)
816 if (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT)
817 R_Q1BSP_DrawLight_TransparentBatch(ent, texture, batchnumsurfaces, batchsurfacelist);
819 R_Shadow_RenderSurfacesLighting(ent, texture, batchnumsurfaces, batchsurfacelist);
820 batchnumsurfaces = 0;
822 tex = surface->texture;
823 texture = surface->texture->currentframe;
824 skip = (texture->currentmaterialflags & MATERIALFLAG_SKY) != 0;
828 if (!skip && surface->num_triangles)
830 if (batchnumsurfaces == RSURF_MAX_BATCHSURFACES)
832 if (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT)
833 R_Q1BSP_DrawLight_TransparentBatch(ent, texture, batchnumsurfaces, batchsurfacelist);
835 R_Shadow_RenderSurfacesLighting(ent, texture, batchnumsurfaces, batchsurfacelist);
836 batchnumsurfaces = 0;
838 batchsurfacelist[batchnumsurfaces++] = surface;
841 if (batchnumsurfaces > 0)
843 if (texture->currentmaterialflags & MATERIALFLAG_TRANSPARENT)
844 R_Q1BSP_DrawLight_TransparentBatch(ent, texture, batchnumsurfaces, batchsurfacelist);
846 R_Shadow_RenderSurfacesLighting(ent, texture, batchnumsurfaces, batchsurfacelist);
847 batchnumsurfaces = 0;
849 qglEnable(GL_CULL_FACE);
853 void R_ReplaceWorldTexture (void)
858 const char *r, *newt;
859 m = r_refdef.worldmodel;
863 Con_Print("r_replacemaptexture <texname> <newtexname> - replaces texture\n");
864 Con_Print("r_replacemaptexture <texname> - switch back to default texture\n");
867 if(!cl.islocalgame || !cl.worldmodel)
869 Con_Print("This command works only in singleplayer\n");
876 for(i=0,t=m->data_textures;i<m->num_textures;i++,t++)
878 if(t->width && !strcasecmp(t->name, r))
880 if(Mod_LoadSkinFrame(&t->skin, (char*)newt, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, r_fullbrights.integer))
882 Con_Printf("%s replaced with %s\n", r, newt);
887 Con_Printf("%s was not found\n", newt);
888 Mod_LoadSkinFrame(&t->skin, (char*)r, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, r_fullbrights.integer);//back to default
896 void R_ListWorldTextures (void)
901 m = r_refdef.worldmodel;
903 Con_Print("Worldmodel textures :\n");
904 for(i=0,t=m->data_textures;i<m->num_textures;i++,t++)
905 if(t->skin.base != r_texture_notexture)
906 Con_Printf("%s\n", t->name);
910 static void gl_surf_start(void)
914 static void gl_surf_shutdown(void)
918 static void gl_surf_newmap(void)
923 void GL_Surf_Init(void)
926 Cvar_RegisterVariable(&r_ambient);
927 Cvar_RegisterVariable(&r_drawportals);
928 Cvar_RegisterVariable(&r_lockpvs);
929 Cvar_RegisterVariable(&r_lockvisibility);
930 Cvar_RegisterVariable(&r_useportalculling);
931 Cvar_RegisterVariable(&r_q3bsp_renderskydepth);
933 Cmd_AddCommand ("r_replacemaptexture", R_ReplaceWorldTexture, "override a map texture for testing purposes"); // By [515]
934 Cmd_AddCommand ("r_listmaptextures", R_ListWorldTextures, "list all textures used by the current map"); // By [515]
936 //R_RegisterModule("GL_Surf", gl_surf_start, gl_surf_shutdown, gl_surf_newmap);