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"};
39 Combine and scale multiple lightmaps into the 8.8 format in blocklights
42 void R_BuildLightMap (const entity_render_t *ent, msurface_t *surface)
44 int smax, tmax, i, size, size3, maps, l;
46 unsigned char *lightmap, *out, *stain;
47 model_t *model = ent->model;
48 static int intblocklights[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*3]; // LordHavoc: *3 for colored lighting
49 static unsigned char templight[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*4];
51 // update cached lighting info
52 surface->cached_dlight = 0;
54 smax = (surface->lightmapinfo->extents[0]>>4)+1;
55 tmax = (surface->lightmapinfo->extents[1]>>4)+1;
58 lightmap = surface->lightmapinfo->samples;
60 // set to full bright if no light data
62 if (!model->brushq1.lightdata)
64 for (i = 0;i < size3;i++)
70 memset(bl, 0, size3*sizeof(*bl));
72 // add all the lightmaps
74 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++, lightmap += size3)
75 for (scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]], i = 0;i < size3;i++)
76 bl[i] += lightmap[i] * scale;
79 stain = surface->lightmapinfo->stainsamples;
82 // the >> 16 shift adjusts down 8 bits to account for the stainmap
83 // scaling, and remaps the 0-65536 (2x overbright) to 0-256, it will
84 // be doubled during rendering to achieve 2x overbright
85 // (0 = 0.0, 128 = 1.0, 256 = 2.0)
86 if (model->brushq1.lightmaprgba)
88 for (i = 0;i < size;i++)
90 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
91 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
92 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
98 for (i = 0;i < size;i++)
100 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
101 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
102 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
106 R_UpdateTexture(surface->lightmaptexture, templight, surface->lightmapinfo->lightmaporigin[0], surface->lightmapinfo->lightmaporigin[1], smax, tmax);
108 // update the surface's deluxemap if it has one
109 if (surface->deluxemaptexture != r_texture_blanknormalmap)
112 unsigned char *normalmap = surface->lightmapinfo->nmapsamples;
113 lightmap = surface->lightmapinfo->samples;
114 // clear to no normalmap
116 memset(bl, 0, size3*sizeof(*bl));
117 // add all the normalmaps
118 if (lightmap && normalmap)
120 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++, lightmap += size3, normalmap += size3)
122 for (scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]], i = 0;i < size;i++)
124 // add the normalmap with weighting proportional to the style's lightmap intensity
125 l = (int)(VectorLength(lightmap + i*3) * scale);
126 bl[i*3+0] += ((int)normalmap[i*3+0] - 128) * l;
127 bl[i*3+1] += ((int)normalmap[i*3+1] - 128) * l;
128 bl[i*3+2] += ((int)normalmap[i*3+2] - 128) * l;
134 // we simply renormalize the weighted normals to get a valid deluxemap
135 if (model->brushq1.lightmaprgba)
137 for (i = 0;i < size;i++, bl += 3)
141 l = (int)(n[0] * 128 + 128);*out++ = bound(0, l, 255);
142 l = (int)(n[1] * 128 + 128);*out++ = bound(0, l, 255);
143 l = (int)(n[2] * 128 + 128);*out++ = bound(0, l, 255);
149 for (i = 0;i < size;i++, bl += 3)
153 l = (int)(n[0] * 128 + 128);*out++ = bound(0, l, 255);
154 l = (int)(n[1] * 128 + 128);*out++ = bound(0, l, 255);
155 l = (int)(n[2] * 128 + 128);*out++ = bound(0, l, 255);
158 R_UpdateTexture(surface->deluxemaptexture, templight, surface->lightmapinfo->lightmaporigin[0], surface->lightmapinfo->lightmaporigin[1], smax, tmax);
162 void R_StainNode (mnode_t *node, model_t *model, const vec3_t origin, float radius, const float fcolor[8])
164 float ndist, a, ratio, maxdist, maxdist2, maxdist3, invradius, sdtable[256], td, dist2;
165 msurface_t *surface, *endsurface;
166 int i, s, t, smax, tmax, smax3, impacts, impactt, stained;
170 maxdist = radius * radius;
171 invradius = 1.0f / radius;
176 ndist = PlaneDiff(origin, node->plane);
179 node = node->children[0];
184 node = node->children[1];
188 dist2 = ndist * ndist;
189 maxdist3 = maxdist - dist2;
191 if (node->plane->type < 3)
193 VectorCopy(origin, impact);
194 impact[node->plane->type] -= ndist;
198 impact[0] = origin[0] - node->plane->normal[0] * ndist;
199 impact[1] = origin[1] - node->plane->normal[1] * ndist;
200 impact[2] = origin[2] - node->plane->normal[2] * ndist;
203 for (surface = model->data_surfaces + node->firstsurface, endsurface = surface + node->numsurfaces;surface < endsurface;surface++)
205 if (surface->lightmapinfo->stainsamples)
207 smax = (surface->lightmapinfo->extents[0] >> 4) + 1;
208 tmax = (surface->lightmapinfo->extents[1] >> 4) + 1;
210 impacts = (int)(DotProduct (impact, surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3] - surface->lightmapinfo->texturemins[0]);
211 impactt = (int)(DotProduct (impact, surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3] - surface->lightmapinfo->texturemins[1]);
213 s = bound(0, impacts, smax * 16) - impacts;
214 t = bound(0, impactt, tmax * 16) - impactt;
215 i = (int)(s * s + t * t + dist2);
219 // reduce calculations
220 for (s = 0, i = impacts; s < smax; s++, i -= 16)
221 sdtable[s] = i * i + dist2;
223 bl = surface->lightmapinfo->stainsamples;
228 for (t = 0;t < tmax;t++, i -= 16)
231 // make sure some part of it is visible on this line
234 maxdist2 = maxdist - td;
235 for (s = 0;s < smax;s++)
237 if (sdtable[s] < maxdist2)
239 ratio = lhrandom(0.0f, 1.0f);
240 a = (fcolor[3] + ratio * fcolor[7]) * (1.0f - sqrt(sdtable[s] + td) * invradius);
241 if (a >= (1.0f / 64.0f))
245 bl[0] = (unsigned char) ((float) bl[0] + a * ((fcolor[0] + ratio * fcolor[4]) - (float) bl[0]));
246 bl[1] = (unsigned char) ((float) bl[1] + a * ((fcolor[1] + ratio * fcolor[5]) - (float) bl[1]));
247 bl[2] = (unsigned char) ((float) bl[2] + a * ((fcolor[2] + ratio * fcolor[6]) - (float) bl[2]));
257 // force lightmap upload
259 surface->cached_dlight = true;
263 if (node->children[0]->plane)
265 if (node->children[1]->plane)
267 R_StainNode(node->children[0], model, origin, radius, fcolor);
268 node = node->children[1];
273 node = node->children[0];
277 else if (node->children[1]->plane)
279 node = node->children[1];
284 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)
288 entity_render_t *ent;
291 if (r_refdef.worldmodel == NULL || !r_refdef.worldmodel->brush.data_nodes || !r_refdef.worldmodel->brushq1.lightdata)
296 fcolor[3] = ca1 * (1.0f / 64.0f);
297 fcolor[4] = cr2 - cr1;
298 fcolor[5] = cg2 - cg1;
299 fcolor[6] = cb2 - cb1;
300 fcolor[7] = (ca2 - ca1) * (1.0f / 64.0f);
302 R_StainNode(r_refdef.worldmodel->brush.data_nodes + r_refdef.worldmodel->brushq1.hulls[0].firstclipnode, r_refdef.worldmodel, origin, radius, fcolor);
304 // look for embedded bmodels
305 for (n = 0;n < cl.num_brushmodel_entities;n++)
307 ent = &cl.entities[cl.brushmodel_entities[n]].render;
309 if (model && model->name[0] == '*')
311 if (model->brush.data_nodes)
313 Matrix4x4_Transform(&ent->inversematrix, origin, org);
314 R_StainNode(model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, model, org, radius, fcolor);
322 =============================================================
326 =============================================================
329 static void R_DrawPortal_Callback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
331 // due to the hacky nature of this function's parameters, this is never
332 // called with a batch, so numsurfaces is always 1, and the surfacelist
333 // contains only a leaf number for coloring purposes
334 const mportal_t *portal = (mportal_t *)ent;
337 float vertex3f[POLYGONELEMENTS_MAXPOINTS*3];
339 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
342 qglDisable(GL_CULL_FACE);CHECKGLERROR
343 R_Mesh_Matrix(&identitymatrix);
345 numpoints = min(portal->numpoints, POLYGONELEMENTS_MAXPOINTS);
347 R_Mesh_VertexPointer(vertex3f);
348 R_Mesh_ColorPointer(NULL);
349 R_Mesh_ResetTextureState();
352 GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f),
353 ((i & 0x0038) >> 3) * (1.0f / 7.0f),
354 ((i & 0x01C0) >> 6) * (1.0f / 7.0f),
356 for (i = 0, v = vertex3f;i < numpoints;i++, v += 3)
357 VectorCopy(portal->points[i].position, v);
358 R_Mesh_Draw(0, numpoints, numpoints - 2, polygonelements);
359 qglEnable(GL_CULL_FACE);CHECKGLERROR
362 // LordHavoc: this is just a nice debugging tool, very slow
363 static void R_DrawPortals(void)
368 model_t *model = r_refdef.worldmodel;
371 for (leafnum = 0;leafnum < r_refdef.worldmodel->brush.num_leafs;leafnum++)
373 if (r_viewcache.world_leafvisible[leafnum])
375 //for (portalnum = 0, portal = model->brush.data_portals;portalnum < model->brush.num_portals;portalnum++, portal++)
376 for (portal = r_refdef.worldmodel->brush.data_leafs[leafnum].portals;portal;portal = portal->next)
378 if (portal->numpoints <= POLYGONELEMENTS_MAXPOINTS)
379 if (!R_CullBox(portal->mins, portal->maxs))
382 for (i = 0;i < portal->numpoints;i++)
383 VectorAdd(center, portal->points[i].position, center);
384 f = ixtable[portal->numpoints];
385 VectorScale(center, f, center);
386 R_MeshQueue_AddTransparent(center, R_DrawPortal_Callback, (entity_render_t *)portal, leafnum, r_shadow_rtlight);
393 void R_View_WorldVisibility(void)
398 model_t *model = r_refdef.worldmodel;
403 // if possible find the leaf the view origin is in
404 viewleaf = model->brush.PointInLeaf ? model->brush.PointInLeaf(model, r_view.origin) : NULL;
405 // if possible fetch the visible cluster bits
406 if (!r_lockpvs.integer && model->brush.FatPVS)
407 model->brush.FatPVS(model, r_view.origin, 2, r_viewcache.world_pvsbits, sizeof(r_viewcache.world_pvsbits));
409 if (!r_lockvisibility.integer)
411 // clear the visible surface and leaf flags arrays
412 memset(r_viewcache.world_surfacevisible, 0, model->num_surfaces);
413 memset(r_viewcache.world_leafvisible, 0, model->brush.num_leafs);
415 r_viewcache.world_novis = false;
417 // if floating around in the void (no pvs data available, and no
418 // portals available), simply use all on-screen leafs.
419 if (!viewleaf || viewleaf->clusterindex < 0)
421 // no visibility method: (used when floating around in the void)
422 // simply cull each leaf to the frustum (view pyramid)
423 // similar to quake's RecursiveWorldNode but without cache misses
424 r_viewcache.world_novis = true;
425 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
427 // if leaf is in current pvs and on the screen, mark its surfaces
428 if (!R_CullBox(leaf->mins, leaf->maxs))
430 r_refdef.stats.world_leafs++;
431 r_viewcache.world_leafvisible[j] = true;
432 if (leaf->numleafsurfaces)
433 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
434 r_viewcache.world_surfacevisible[*mark] = true;
438 // if the user prefers to disable portal culling (testing?), simply
439 // use all on-screen leafs that are in the pvs.
440 else if (!r_useportalculling.integer)
443 // simply check if each leaf is in the Potentially Visible Set,
444 // and cull to frustum (view pyramid)
445 // similar to quake's RecursiveWorldNode but without cache misses
446 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
448 // if leaf is in current pvs and on the screen, mark its surfaces
449 if (CHECKPVSBIT(r_viewcache.world_pvsbits, leaf->clusterindex) && !R_CullBox(leaf->mins, leaf->maxs))
451 r_refdef.stats.world_leafs++;
452 r_viewcache.world_leafvisible[j] = true;
453 if (leaf->numleafsurfaces)
454 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
455 r_viewcache.world_surfacevisible[*mark] = true;
459 // otherwise use a recursive portal flow, culling each portal to
460 // frustum and checking if the leaf the portal leads to is in the pvs
465 mleaf_t *leafstack[8192];
466 // simple-frustum portal method:
467 // follows portals leading outward from viewleaf, does not venture
468 // offscreen or into leafs that are not visible, faster than
469 // Quake's RecursiveWorldNode and vastly better in unvised maps,
470 // often culls some surfaces that pvs alone would miss
471 // (such as a room in pvs that is hidden behind a wall, but the
472 // passage leading to the room is off-screen)
473 leafstack[0] = viewleaf;
477 r_refdef.stats.world_leafs++;
478 leaf = leafstack[--leafstackpos];
479 r_viewcache.world_leafvisible[leaf - model->brush.data_leafs] = true;
480 // mark any surfaces bounding this leaf
481 if (leaf->numleafsurfaces)
482 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
483 r_viewcache.world_surfacevisible[*mark] = true;
484 // follow portals into other leafs
486 // if viewer is behind portal (portal faces outward into the scene)
487 // and the portal polygon's bounding box is on the screen
488 // and the leaf has not been visited yet
489 // and the leaf is visible in the pvs
490 // (the first two checks won't cause as many cache misses as the leaf checks)
491 for (p = leaf->portals;p;p = p->next)
493 r_refdef.stats.world_portals++;
494 if (DotProduct(r_view.origin, p->plane.normal) < (p->plane.dist + 1) && !R_CullBox(p->mins, p->maxs) && !r_viewcache.world_leafvisible[p->past - model->brush.data_leafs] && CHECKPVSBIT(r_viewcache.world_pvsbits, p->past->clusterindex))
495 leafstack[leafstackpos++] = p->past;
501 if (r_drawportals.integer)
505 void R_Q1BSP_DrawSky(entity_render_t *ent)
507 if (ent->model == NULL)
509 R_DrawSurfaces(ent, true);
512 void R_Q1BSP_Draw(entity_render_t *ent)
514 model_t *model = ent->model;
517 R_DrawSurfaces(ent, false);
520 typedef struct r_q1bsp_getlightinfo_s
523 vec3_t relativelightorigin;
526 unsigned char *outleafpvs;
529 unsigned char *outsurfacepvs;
535 const unsigned char *pvs;
537 r_q1bsp_getlightinfo_t;
539 void R_Q1BSP_RecursiveGetLightInfo(r_q1bsp_getlightinfo_t *info, mnode_t *node)
545 mplane_t *plane = node->plane;
546 //if (!BoxesOverlap(info->lightmins, info->lightmaxs, node->mins, node->maxs))
551 sides = ((info->lightmaxs[plane->type] >= plane->dist) | ((info->lightmins[plane->type] < plane->dist) << 1));
553 sides = BoxOnPlaneSide(info->lightmins, info->lightmaxs, plane);
556 R_Q1BSP_RecursiveGetLightInfo(info, node->children[0]);
557 node = node->children[1];
560 return; // ERROR: NAN bounding box!
562 node = node->children[sides - 1];
564 leaf = (mleaf_t *)node;
565 if (info->pvs == NULL || CHECKPVSBIT(info->pvs, leaf->clusterindex))
567 info->outmins[0] = min(info->outmins[0], leaf->mins[0]);
568 info->outmins[1] = min(info->outmins[1], leaf->mins[1]);
569 info->outmins[2] = min(info->outmins[2], leaf->mins[2]);
570 info->outmaxs[0] = max(info->outmaxs[0], leaf->maxs[0]);
571 info->outmaxs[1] = max(info->outmaxs[1], leaf->maxs[1]);
572 info->outmaxs[2] = max(info->outmaxs[2], leaf->maxs[2]);
573 if (info->outleafpvs)
575 int leafindex = leaf - info->model->brush.data_leafs;
576 if (!CHECKPVSBIT(info->outleafpvs, leafindex))
578 SETPVSBIT(info->outleafpvs, leafindex);
579 info->outleaflist[info->outnumleafs++] = leafindex;
582 if (info->outsurfacepvs)
584 int leafsurfaceindex;
585 for (leafsurfaceindex = 0;leafsurfaceindex < leaf->numleafsurfaces;leafsurfaceindex++)
587 int surfaceindex = leaf->firstleafsurface[leafsurfaceindex];
588 if (!CHECKPVSBIT(info->outsurfacepvs, surfaceindex))
590 msurface_t *surface = info->model->data_surfaces + surfaceindex;
591 if (BoxesOverlap(info->lightmins, info->lightmaxs, surface->mins, surface->maxs))
593 int triangleindex, t;
596 for (triangleindex = 0, t = surface->num_firstshadowmeshtriangle, e = info->model->brush.shadowmesh->element3i + t * 3;triangleindex < surface->num_triangles;triangleindex++, t++, e += 3)
598 v[0] = info->model->brush.shadowmesh->vertex3f + e[0] * 3;
599 v[1] = info->model->brush.shadowmesh->vertex3f + e[1] * 3;
600 v[2] = info->model->brush.shadowmesh->vertex3f + e[2] * 3;
601 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])))
603 SETPVSBIT(info->outsurfacepvs, surfaceindex);
604 info->outsurfacelist[info->outnumsurfaces++] = surfaceindex;
615 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)
617 r_q1bsp_getlightinfo_t info;
618 VectorCopy(relativelightorigin, info.relativelightorigin);
619 info.lightradius = lightradius;
620 info.lightmins[0] = info.relativelightorigin[0] - info.lightradius;
621 info.lightmins[1] = info.relativelightorigin[1] - info.lightradius;
622 info.lightmins[2] = info.relativelightorigin[2] - info.lightradius;
623 info.lightmaxs[0] = info.relativelightorigin[0] + info.lightradius;
624 info.lightmaxs[1] = info.relativelightorigin[1] + info.lightradius;
625 info.lightmaxs[2] = info.relativelightorigin[2] + info.lightradius;
626 if (ent->model == NULL)
628 VectorCopy(info.lightmins, outmins);
629 VectorCopy(info.lightmaxs, outmaxs);
630 *outnumleafspointer = 0;
631 *outnumsurfacespointer = 0;
634 info.model = ent->model;
635 info.outleaflist = outleaflist;
636 info.outleafpvs = outleafpvs;
637 info.outnumleafs = 0;
638 info.outsurfacelist = outsurfacelist;
639 info.outsurfacepvs = outsurfacepvs;
640 info.outnumsurfaces = 0;
641 VectorCopy(info.relativelightorigin, info.outmins);
642 VectorCopy(info.relativelightorigin, info.outmaxs);
643 memset(outleafpvs, 0, (info.model->brush.num_leafs + 7) >> 3);
644 memset(outsurfacepvs, 0, (info.model->nummodelsurfaces + 7) >> 3);
645 if (info.model->brush.GetPVS)
646 info.pvs = info.model->brush.GetPVS(info.model, info.relativelightorigin);
649 R_UpdateAllTextureInfo(ent);
650 if (r_shadow_compilingrtlight)
652 // use portal recursion for exact light volume culling, and exact surface checking
653 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);
655 else if (r_shadow_realtime_dlight_portalculling.integer)
657 // use portal recursion for exact light volume culling, but not the expensive exact surface checking
658 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);
662 // use BSP recursion as lights are often small
663 R_Q1BSP_RecursiveGetLightInfo(&info, info.model->brush.data_nodes);
666 // limit combined leaf box to light boundaries
667 outmins[0] = max(info.outmins[0] - 1, info.lightmins[0]);
668 outmins[1] = max(info.outmins[1] - 1, info.lightmins[1]);
669 outmins[2] = max(info.outmins[2] - 1, info.lightmins[2]);
670 outmaxs[0] = min(info.outmaxs[0] + 1, info.lightmaxs[0]);
671 outmaxs[1] = min(info.outmaxs[1] + 1, info.lightmaxs[1]);
672 outmaxs[2] = min(info.outmaxs[2] + 1, info.lightmaxs[2]);
674 *outnumleafspointer = info.outnumleafs;
675 *outnumsurfacespointer = info.outnumsurfaces;
678 void R_Q1BSP_CompileShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist)
680 model_t *model = ent->model;
682 int surfacelistindex;
683 float projectdistance = lightradius + model->radius*2 + r_shadow_projectdistance.value;
685 r_shadow_compilingrtlight->static_meshchain_shadow = Mod_ShadowMesh_Begin(r_main_mempool, 32768, 32768, NULL, NULL, NULL, false, false, true);
686 R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
687 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
689 surface = model->data_surfaces + surfacelist[surfacelistindex];
690 texture = surface->texture;
691 if ((texture->basematerialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_WALL)) != MATERIALFLAG_WALL)
693 if ((texture->textureflags & (Q3TEXTUREFLAG_TWOSIDED | Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2)) || (ent->flags & RENDER_NOCULLFACE))
695 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);
697 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);
698 r_shadow_compilingrtlight->static_meshchain_shadow = Mod_ShadowMesh_Finish(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow, false, false);
701 void R_Q1BSP_DrawShadowVolume_Batch(const vec3_t relativelightorigin, const vec3_t lightmins, const vec3_t lightmaxs, int texturenumsurfaces, msurface_t **texturesurfacelist)
703 int texturesurfaceindex;
704 RSurf_PrepareVerticesForBatch(false, false, texturenumsurfaces, texturesurfacelist);
705 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
707 msurface_t *surface = texturesurfacelist[texturesurfaceindex];
708 R_Shadow_MarkVolumeFromBox(surface->num_firsttriangle, surface->num_triangles, rsurface_vertex3f, rsurface_model->surfmesh.data_element3i, relativelightorigin, lightmins, lightmaxs, surface->mins, surface->maxs);
712 void R_Q1BSP_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int modelnumsurfaces, const int *modelsurfacelist, const vec3_t lightmins, const vec3_t lightmaxs)
714 model_t *model = ent->model;
716 int modelsurfacelistindex;
718 float projectdistance = lightradius + model->radius*2 + r_shadow_projectdistance.value;
720 const int maxsurfacelist = 1024;
721 int numsurfacelist = 0;
722 msurface_t *surfacelist[1024];
723 // check the box in modelspace, it was already checked in worldspace
724 if (!BoxesOverlap(model->normalmins, model->normalmaxs, lightmins, lightmaxs))
726 R_UpdateAllTextureInfo(ent);
727 if (model->brush.shadowmesh)
729 R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
730 for (modelsurfacelistindex = 0;modelsurfacelistindex < modelnumsurfaces;modelsurfacelistindex++)
732 surface = model->data_surfaces + modelsurfacelist[modelsurfacelistindex];
733 t = surface->texture->currentframe;
734 if ((t->currentmaterialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_WALL)) != MATERIALFLAG_WALL)
736 if ((t->textureflags & (Q3TEXTUREFLAG_TWOSIDED | Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2)) || (ent->flags & RENDER_NOCULLFACE))
738 R_Shadow_MarkVolumeFromBox(surface->num_firstshadowmeshtriangle, surface->num_triangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, relativelightorigin, lightmins, lightmaxs, surface->mins, surface->maxs);
740 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);
744 projectdistance = lightradius + model->radius*2;
745 RSurf_ActiveEntity(ent, false, false);
746 R_Shadow_PrepareShadowMark(model->surfmesh.num_triangles);
747 // identify lit faces within the bounding box
748 for (modelsurfacelistindex = 0;modelsurfacelistindex < modelnumsurfaces;modelsurfacelistindex++)
750 surface = model->data_surfaces + modelsurfacelist[modelsurfacelistindex];
751 if (t != surface->texture || numsurfacelist >= maxsurfacelist)
755 R_Q1BSP_DrawShadowVolume_Batch(relativelightorigin, lightmins, lightmaxs, numsurfacelist, surfacelist);
758 t = surface->texture;
759 rsurface_texture = t->currentframe;
760 f = (rsurface_texture->currentmaterialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_WALL)) == MATERIALFLAG_WALL;
762 if (f && surface->num_triangles)
763 surfacelist[numsurfacelist++] = surface;
766 R_Q1BSP_DrawShadowVolume_Batch(relativelightorigin, lightmins, lightmaxs, numsurfacelist, surfacelist);
767 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);
771 #define BATCHSIZE 256
773 static void R_Q1BSP_DrawLight_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
775 int surfacelistindex, batchcount;
777 msurface_t *batchsurfaces[BATCHSIZE];
778 // note: in practice this never actualy batches, oh well
779 R_Shadow_RenderMode_Begin();
780 R_Shadow_RenderMode_ActiveLight((rtlight_t *)rtlight);
781 R_Shadow_RenderMode_Lighting(false, true);
782 R_Shadow_SetupEntityLight(ent);
785 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
787 msurface_t *surface = ent->model->data_surfaces + surfacelist[surfacelistindex];
788 if (t != surface->texture)
791 R_Shadow_RenderSurfacesLighting(batchcount, batchsurfaces);
793 t = surface->texture;
794 R_UpdateTextureInfo(ent, t);
795 rsurface_texture = t->currentframe;
797 batchsurfaces[batchcount++] = surface;
800 R_Shadow_RenderSurfacesLighting(batchcount, batchsurfaces);
801 R_Shadow_RenderMode_End();
804 static void R_Q1BSP_DrawLight_TransparentBatch(int batchnumsurfaces, msurface_t **batchsurfacelist)
806 int batchsurfaceindex;
807 msurface_t *batchsurface;
808 vec3_t tempcenter, center;
809 for (batchsurfaceindex = 0;batchsurfaceindex < batchnumsurfaces;batchsurfaceindex++)
811 batchsurface = batchsurfacelist[batchsurfaceindex];
812 tempcenter[0] = (batchsurface->mins[0] + batchsurface->maxs[0]) * 0.5f;
813 tempcenter[1] = (batchsurface->mins[1] + batchsurface->maxs[1]) * 0.5f;
814 tempcenter[2] = (batchsurface->mins[2] + batchsurface->maxs[2]) * 0.5f;
815 Matrix4x4_Transform(&rsurface_entity->matrix, tempcenter, center);
816 R_MeshQueue_AddTransparent(rsurface_texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST ? r_view.origin : center, R_Q1BSP_DrawLight_TransparentCallback, rsurface_entity, batchsurface - rsurface_model->data_surfaces, r_shadow_rtlight);
820 #define RSURF_MAX_BATCHSURFACES 1024
822 void R_Q1BSP_DrawLight(entity_render_t *ent, int numsurfaces, const int *surfacelist)
824 model_t *model = ent->model;
826 int surfacelistindex, batchnumsurfaces;
827 msurface_t *batchsurfacelist[RSURF_MAX_BATCHSURFACES];
831 RSurf_ActiveEntity(ent, true, true);
832 R_UpdateAllTextureInfo(ent);
834 rsurface_texture = NULL;
836 batchnumsurfaces = 0;
838 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
840 if ((ent == r_refdef.worldentity && !r_viewcache.world_surfacevisible[surfacelist[surfacelistindex]]))
842 surface = model->data_surfaces + surfacelist[surfacelistindex];
843 r_refdef.stats.lights_lighttriangles += surface->num_triangles;
844 if (tex != surface->texture)
846 if (batchnumsurfaces > 0)
848 if (rsurface_texture->currentmaterialflags & MATERIALFLAG_BLENDED)
849 R_Q1BSP_DrawLight_TransparentBatch(batchnumsurfaces, batchsurfacelist);
851 R_Shadow_RenderSurfacesLighting(batchnumsurfaces, batchsurfacelist);
852 batchnumsurfaces = 0;
854 tex = surface->texture;
855 rsurface_texture = surface->texture->currentframe;
856 skip = (rsurface_texture->currentmaterialflags & MATERIALFLAG_SKY) != 0;
860 if (!skip && surface->num_triangles)
862 if (batchnumsurfaces == RSURF_MAX_BATCHSURFACES)
864 if (rsurface_texture->currentmaterialflags & MATERIALFLAG_BLENDED)
865 R_Q1BSP_DrawLight_TransparentBatch(batchnumsurfaces, batchsurfacelist);
867 R_Shadow_RenderSurfacesLighting(batchnumsurfaces, batchsurfacelist);
868 batchnumsurfaces = 0;
870 batchsurfacelist[batchnumsurfaces++] = surface;
873 if (batchnumsurfaces > 0)
875 if (rsurface_texture->currentmaterialflags & MATERIALFLAG_BLENDED)
876 R_Q1BSP_DrawLight_TransparentBatch(batchnumsurfaces, batchsurfacelist);
878 R_Shadow_RenderSurfacesLighting(batchnumsurfaces, batchsurfacelist);
879 batchnumsurfaces = 0;
881 qglEnable(GL_CULL_FACE);CHECKGLERROR
885 void R_ReplaceWorldTexture (void)
890 const char *r, *newt;
891 m = r_refdef.worldmodel;
895 Con_Print("r_replacemaptexture <texname> <newtexname> - replaces texture\n");
896 Con_Print("r_replacemaptexture <texname> - switch back to default texture\n");
899 if(!cl.islocalgame || !cl.worldmodel)
901 Con_Print("This command works only in singleplayer\n");
908 for(i=0,t=m->data_textures;i<m->num_textures;i++,t++)
910 if(t->width && !strcasecmp(t->name, r))
912 if(Mod_LoadSkinFrame(&t->skin, (char*)newt, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, r_fullbrights.integer))
914 Con_Printf("%s replaced with %s\n", r, newt);
919 Con_Printf("%s was not found\n", newt);
920 Mod_LoadSkinFrame(&t->skin, (char*)r, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, r_fullbrights.integer);//back to default
928 void R_ListWorldTextures (void)
933 m = r_refdef.worldmodel;
935 Con_Print("Worldmodel textures :\n");
936 for(i=0,t=m->data_textures;i<m->num_textures;i++,t++)
937 if(t->skin.base != r_texture_notexture)
938 Con_Printf("%s\n", t->name);
942 static void gl_surf_start(void)
946 static void gl_surf_shutdown(void)
950 static void gl_surf_newmap(void)
955 void GL_Surf_Init(void)
958 Cvar_RegisterVariable(&r_ambient);
959 Cvar_RegisterVariable(&r_drawportals);
960 Cvar_RegisterVariable(&r_lockpvs);
961 Cvar_RegisterVariable(&r_lockvisibility);
962 Cvar_RegisterVariable(&r_useportalculling);
963 Cvar_RegisterVariable(&r_q3bsp_renderskydepth);
965 Cmd_AddCommand ("r_replacemaptexture", R_ReplaceWorldTexture, "override a map texture for testing purposes"); // By [515]
966 Cmd_AddCommand ("r_listmaptextures", R_ListWorldTextures, "list all textures used by the current map"); // By [515]
968 //R_RegisterModule("GL_Surf", gl_surf_start, gl_surf_shutdown, gl_surf_newmap);