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_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)"};
30 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)"};
31 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"};
32 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"};
38 Combine and scale multiple lightmaps into the 8.8 format in blocklights
41 void R_BuildLightMap (const entity_render_t *ent, msurface_t *surface)
43 int smax, tmax, i, size, size3, maps, l;
45 unsigned char *lightmap, *out, *stain;
46 model_t *model = ent->model;
47 static int intblocklights[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*3]; // LordHavoc: *3 for colored lighting
48 static unsigned char templight[MAX_LIGHTMAP_SIZE*MAX_LIGHTMAP_SIZE*4];
50 // update cached lighting info
51 surface->cached_dlight = 0;
53 smax = (surface->lightmapinfo->extents[0]>>4)+1;
54 tmax = (surface->lightmapinfo->extents[1]>>4)+1;
57 lightmap = surface->lightmapinfo->samples;
59 // set to full bright if no light data
61 if (!model->brushq1.lightdata)
63 for (i = 0;i < size3;i++)
69 memset(bl, 0, size3*sizeof(*bl));
71 // add all the lightmaps
73 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++, lightmap += size3)
74 for (scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]], i = 0;i < size3;i++)
75 bl[i] += lightmap[i] * scale;
78 stain = surface->lightmapinfo->stainsamples;
81 // the >> 16 shift adjusts down 8 bits to account for the stainmap
82 // scaling, and remaps the 0-65536 (2x overbright) to 0-256, it will
83 // be doubled during rendering to achieve 2x overbright
84 // (0 = 0.0, 128 = 1.0, 256 = 2.0)
85 if (model->brushq1.lightmaprgba)
87 for (i = 0;i < size;i++)
89 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
90 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
91 l = (*bl++ * *stain++) >> 16;*out++ = min(l, 255);
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);
105 R_UpdateTexture(surface->lightmaptexture, templight, surface->lightmapinfo->lightmaporigin[0], surface->lightmapinfo->lightmaporigin[1], smax, tmax);
107 // update the surface's deluxemap if it has one
108 if (surface->deluxemaptexture != r_texture_blanknormalmap)
111 unsigned char *normalmap = surface->lightmapinfo->nmapsamples;
112 lightmap = surface->lightmapinfo->samples;
113 // clear to no normalmap
115 memset(bl, 0, size3*sizeof(*bl));
116 // add all the normalmaps
117 if (lightmap && normalmap)
119 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++, lightmap += size3, normalmap += size3)
121 for (scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]], i = 0;i < size;i++)
123 // add the normalmap with weighting proportional to the style's lightmap intensity
124 l = (int)(VectorLength(lightmap + i*3) * scale);
125 bl[i*3+0] += ((int)normalmap[i*3+0] - 128) * l;
126 bl[i*3+1] += ((int)normalmap[i*3+1] - 128) * l;
127 bl[i*3+2] += ((int)normalmap[i*3+2] - 128) * l;
133 // we simply renormalize the weighted normals to get a valid deluxemap
134 if (model->brushq1.lightmaprgba)
136 for (i = 0;i < size;i++, bl += 3)
140 l = (int)(n[0] * 128 + 128);*out++ = bound(0, l, 255);
141 l = (int)(n[1] * 128 + 128);*out++ = bound(0, l, 255);
142 l = (int)(n[2] * 128 + 128);*out++ = bound(0, l, 255);
148 for (i = 0;i < size;i++, bl += 3)
152 l = (int)(n[0] * 128 + 128);*out++ = bound(0, l, 255);
153 l = (int)(n[1] * 128 + 128);*out++ = bound(0, l, 255);
154 l = (int)(n[2] * 128 + 128);*out++ = bound(0, l, 255);
157 R_UpdateTexture(surface->deluxemaptexture, templight, surface->lightmapinfo->lightmaporigin[0], surface->lightmapinfo->lightmaporigin[1], smax, tmax);
161 void R_StainNode (mnode_t *node, model_t *model, const vec3_t origin, float radius, const float fcolor[8])
163 float ndist, a, ratio, maxdist, maxdist2, maxdist3, invradius, sdtable[256], td, dist2;
164 msurface_t *surface, *endsurface;
165 int i, s, t, smax, tmax, smax3, impacts, impactt, stained;
169 maxdist = radius * radius;
170 invradius = 1.0f / radius;
175 ndist = PlaneDiff(origin, node->plane);
178 node = node->children[0];
183 node = node->children[1];
187 dist2 = ndist * ndist;
188 maxdist3 = maxdist - dist2;
190 if (node->plane->type < 3)
192 VectorCopy(origin, impact);
193 impact[node->plane->type] -= ndist;
197 impact[0] = origin[0] - node->plane->normal[0] * ndist;
198 impact[1] = origin[1] - node->plane->normal[1] * ndist;
199 impact[2] = origin[2] - node->plane->normal[2] * ndist;
202 for (surface = model->data_surfaces + node->firstsurface, endsurface = surface + node->numsurfaces;surface < endsurface;surface++)
204 if (surface->lightmapinfo->stainsamples)
206 smax = (surface->lightmapinfo->extents[0] >> 4) + 1;
207 tmax = (surface->lightmapinfo->extents[1] >> 4) + 1;
209 impacts = (int)(DotProduct (impact, surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3] - surface->lightmapinfo->texturemins[0]);
210 impactt = (int)(DotProduct (impact, surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3] - surface->lightmapinfo->texturemins[1]);
212 s = bound(0, impacts, smax * 16) - impacts;
213 t = bound(0, impactt, tmax * 16) - impactt;
214 i = (int)(s * s + t * t + dist2);
218 // reduce calculations
219 for (s = 0, i = impacts; s < smax; s++, i -= 16)
220 sdtable[s] = i * i + dist2;
222 bl = surface->lightmapinfo->stainsamples;
227 for (t = 0;t < tmax;t++, i -= 16)
230 // make sure some part of it is visible on this line
233 maxdist2 = maxdist - td;
234 for (s = 0;s < smax;s++)
236 if (sdtable[s] < maxdist2)
238 ratio = lhrandom(0.0f, 1.0f);
239 a = (fcolor[3] + ratio * fcolor[7]) * (1.0f - sqrt(sdtable[s] + td) * invradius);
240 if (a >= (1.0f / 64.0f))
244 bl[0] = (unsigned char) ((float) bl[0] + a * ((fcolor[0] + ratio * fcolor[4]) - (float) bl[0]));
245 bl[1] = (unsigned char) ((float) bl[1] + a * ((fcolor[1] + ratio * fcolor[5]) - (float) bl[1]));
246 bl[2] = (unsigned char) ((float) bl[2] + a * ((fcolor[2] + ratio * fcolor[6]) - (float) bl[2]));
256 // force lightmap upload
258 surface->cached_dlight = true;
262 if (node->children[0]->plane)
264 if (node->children[1]->plane)
266 R_StainNode(node->children[0], model, origin, radius, fcolor);
267 node = node->children[1];
272 node = node->children[0];
276 else if (node->children[1]->plane)
278 node = node->children[1];
283 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)
287 entity_render_t *ent;
290 if (r_refdef.worldmodel == NULL || !r_refdef.worldmodel->brush.data_nodes || !r_refdef.worldmodel->brushq1.lightdata)
295 fcolor[3] = ca1 * (1.0f / 64.0f);
296 fcolor[4] = cr2 - cr1;
297 fcolor[5] = cg2 - cg1;
298 fcolor[6] = cb2 - cb1;
299 fcolor[7] = (ca2 - ca1) * (1.0f / 64.0f);
301 R_StainNode(r_refdef.worldmodel->brush.data_nodes + r_refdef.worldmodel->brushq1.hulls[0].firstclipnode, r_refdef.worldmodel, origin, radius, fcolor);
303 // look for embedded bmodels
304 for (n = 0;n < cl.num_brushmodel_entities;n++)
306 ent = &cl.entities[cl.brushmodel_entities[n]].render;
308 if (model && model->name[0] == '*')
310 if (model->brush.data_nodes)
312 Matrix4x4_Transform(&ent->inversematrix, origin, org);
313 R_StainNode(model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, model, org, radius, fcolor);
321 =============================================================
325 =============================================================
328 static void R_DrawPortal_Callback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
330 // due to the hacky nature of this function's parameters, this is never
331 // called with a batch, so numsurfaces is always 1, and the surfacelist
332 // contains only a leaf number for coloring purposes
333 const mportal_t *portal = (mportal_t *)ent;
336 float vertex3f[POLYGONELEMENTS_MAXPOINTS*3];
338 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
341 qglDisable(GL_CULL_FACE);CHECKGLERROR
342 R_Mesh_Matrix(&identitymatrix);
344 numpoints = min(portal->numpoints, POLYGONELEMENTS_MAXPOINTS);
346 R_Mesh_VertexPointer(vertex3f);
347 R_Mesh_ColorPointer(NULL);
348 R_Mesh_ResetTextureState();
351 GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f) * r_view.colorscale,
352 ((i & 0x0038) >> 3) * (1.0f / 7.0f) * r_view.colorscale,
353 ((i & 0x01C0) >> 6) * (1.0f / 7.0f) * r_view.colorscale,
355 for (i = 0, v = vertex3f;i < numpoints;i++, v += 3)
356 VectorCopy(portal->points[i].position, v);
357 R_Mesh_Draw(0, numpoints, numpoints - 2, polygonelements);
358 qglEnable(GL_CULL_FACE);CHECKGLERROR
361 // LordHavoc: this is just a nice debugging tool, very slow
362 void R_DrawPortals(void)
367 model_t *model = r_refdef.worldmodel;
370 for (leafnum = 0;leafnum < r_refdef.worldmodel->brush.num_leafs;leafnum++)
372 if (r_viewcache.world_leafvisible[leafnum])
374 //for (portalnum = 0, portal = model->brush.data_portals;portalnum < model->brush.num_portals;portalnum++, portal++)
375 for (portal = r_refdef.worldmodel->brush.data_leafs[leafnum].portals;portal;portal = portal->next)
377 if (portal->numpoints <= POLYGONELEMENTS_MAXPOINTS)
378 if (!R_CullBox(portal->mins, portal->maxs))
381 for (i = 0;i < portal->numpoints;i++)
382 VectorAdd(center, portal->points[i].position, center);
383 f = ixtable[portal->numpoints];
384 VectorScale(center, f, center);
385 R_MeshQueue_AddTransparent(center, R_DrawPortal_Callback, (entity_render_t *)portal, leafnum, r_shadow_rtlight);
392 void R_View_WorldVisibility(void)
397 model_t *model = r_refdef.worldmodel;
402 // if possible find the leaf the view origin is in
403 viewleaf = model->brush.PointInLeaf ? model->brush.PointInLeaf(model, r_view.origin) : NULL;
404 // if possible fetch the visible cluster bits
405 if (!r_lockpvs.integer && model->brush.FatPVS)
406 model->brush.FatPVS(model, r_view.origin, 2, r_viewcache.world_pvsbits, sizeof(r_viewcache.world_pvsbits));
408 if (!r_lockvisibility.integer)
410 // clear the visible surface and leaf flags arrays
411 memset(r_viewcache.world_surfacevisible, 0, model->num_surfaces);
412 memset(r_viewcache.world_leafvisible, 0, model->brush.num_leafs);
414 r_viewcache.world_novis = false;
416 // if floating around in the void (no pvs data available, and no
417 // portals available), simply use all on-screen leafs.
418 if (!viewleaf || viewleaf->clusterindex < 0)
420 // no visibility method: (used when floating around in the void)
421 // simply cull each leaf to the frustum (view pyramid)
422 // similar to quake's RecursiveWorldNode but without cache misses
423 r_viewcache.world_novis = true;
424 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
426 // if leaf is in current pvs and on the screen, mark its surfaces
427 if (!R_CullBox(leaf->mins, leaf->maxs))
429 r_refdef.stats.world_leafs++;
430 r_viewcache.world_leafvisible[j] = true;
431 if (leaf->numleafsurfaces)
432 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
433 r_viewcache.world_surfacevisible[*mark] = true;
437 // if the user prefers to disable portal culling (testing?), simply
438 // use all on-screen leafs that are in the pvs.
439 else if (!r_useportalculling.integer)
442 // simply check if each leaf is in the Potentially Visible Set,
443 // and cull to frustum (view pyramid)
444 // similar to quake's RecursiveWorldNode but without cache misses
445 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
447 // if leaf is in current pvs and on the screen, mark its surfaces
448 if (CHECKPVSBIT(r_viewcache.world_pvsbits, leaf->clusterindex) && !R_CullBox(leaf->mins, leaf->maxs))
450 r_refdef.stats.world_leafs++;
451 r_viewcache.world_leafvisible[j] = true;
452 if (leaf->numleafsurfaces)
453 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
454 r_viewcache.world_surfacevisible[*mark] = true;
458 // otherwise use a recursive portal flow, culling each portal to
459 // frustum and checking if the leaf the portal leads to is in the pvs
464 mleaf_t *leafstack[8192];
465 // simple-frustum portal method:
466 // follows portals leading outward from viewleaf, does not venture
467 // offscreen or into leafs that are not visible, faster than
468 // Quake's RecursiveWorldNode and vastly better in unvised maps,
469 // often culls some surfaces that pvs alone would miss
470 // (such as a room in pvs that is hidden behind a wall, but the
471 // passage leading to the room is off-screen)
472 leafstack[0] = viewleaf;
476 r_refdef.stats.world_leafs++;
477 leaf = leafstack[--leafstackpos];
478 r_viewcache.world_leafvisible[leaf - model->brush.data_leafs] = true;
479 // mark any surfaces bounding this leaf
480 if (leaf->numleafsurfaces)
481 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
482 r_viewcache.world_surfacevisible[*mark] = true;
483 // follow portals into other leafs
485 // if viewer is behind portal (portal faces outward into the scene)
486 // and the portal polygon's bounding box is on the screen
487 // and the leaf has not been visited yet
488 // and the leaf is visible in the pvs
489 // (the first two checks won't cause as many cache misses as the leaf checks)
490 for (p = leaf->portals;p;p = p->next)
492 r_refdef.stats.world_portals++;
493 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))
494 leafstack[leafstackpos++] = p->past;
501 void R_Q1BSP_DrawSky(entity_render_t *ent)
503 if (ent->model == NULL)
505 R_DrawSurfaces(ent, true);
508 void R_Q1BSP_Draw(entity_render_t *ent)
510 model_t *model = ent->model;
513 R_DrawSurfaces(ent, false);
516 typedef struct r_q1bsp_getlightinfo_s
519 vec3_t relativelightorigin;
522 unsigned char *outleafpvs;
525 unsigned char *outsurfacepvs;
531 const unsigned char *pvs;
533 r_q1bsp_getlightinfo_t;
535 void R_Q1BSP_RecursiveGetLightInfo(r_q1bsp_getlightinfo_t *info, mnode_t *node)
541 mplane_t *plane = node->plane;
542 //if (!BoxesOverlap(info->lightmins, info->lightmaxs, node->mins, node->maxs))
547 sides = ((info->lightmaxs[plane->type] >= plane->dist) | ((info->lightmins[plane->type] < plane->dist) << 1));
549 sides = BoxOnPlaneSide(info->lightmins, info->lightmaxs, plane);
552 R_Q1BSP_RecursiveGetLightInfo(info, node->children[0]);
553 node = node->children[1];
556 return; // ERROR: NAN bounding box!
558 node = node->children[sides - 1];
560 leaf = (mleaf_t *)node;
561 if (info->pvs == NULL || CHECKPVSBIT(info->pvs, leaf->clusterindex))
563 info->outmins[0] = min(info->outmins[0], leaf->mins[0]);
564 info->outmins[1] = min(info->outmins[1], leaf->mins[1]);
565 info->outmins[2] = min(info->outmins[2], leaf->mins[2]);
566 info->outmaxs[0] = max(info->outmaxs[0], leaf->maxs[0]);
567 info->outmaxs[1] = max(info->outmaxs[1], leaf->maxs[1]);
568 info->outmaxs[2] = max(info->outmaxs[2], leaf->maxs[2]);
569 if (info->outleafpvs)
571 int leafindex = leaf - info->model->brush.data_leafs;
572 if (!CHECKPVSBIT(info->outleafpvs, leafindex))
574 SETPVSBIT(info->outleafpvs, leafindex);
575 info->outleaflist[info->outnumleafs++] = leafindex;
578 if (info->outsurfacepvs)
580 int leafsurfaceindex;
581 for (leafsurfaceindex = 0;leafsurfaceindex < leaf->numleafsurfaces;leafsurfaceindex++)
583 int surfaceindex = leaf->firstleafsurface[leafsurfaceindex];
584 if (!CHECKPVSBIT(info->outsurfacepvs, surfaceindex))
586 msurface_t *surface = info->model->data_surfaces + surfaceindex;
587 if (BoxesOverlap(info->lightmins, info->lightmaxs, surface->mins, surface->maxs))
589 int triangleindex, t;
592 for (triangleindex = 0, t = surface->num_firstshadowmeshtriangle, e = info->model->brush.shadowmesh->element3i + t * 3;triangleindex < surface->num_triangles;triangleindex++, t++, e += 3)
594 v[0] = info->model->brush.shadowmesh->vertex3f + e[0] * 3;
595 v[1] = info->model->brush.shadowmesh->vertex3f + e[1] * 3;
596 v[2] = info->model->brush.shadowmesh->vertex3f + e[2] * 3;
597 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])))
599 SETPVSBIT(info->outsurfacepvs, surfaceindex);
600 info->outsurfacelist[info->outnumsurfaces++] = surfaceindex;
611 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)
613 r_q1bsp_getlightinfo_t info;
614 VectorCopy(relativelightorigin, info.relativelightorigin);
615 info.lightradius = lightradius;
616 info.lightmins[0] = info.relativelightorigin[0] - info.lightradius;
617 info.lightmins[1] = info.relativelightorigin[1] - info.lightradius;
618 info.lightmins[2] = info.relativelightorigin[2] - info.lightradius;
619 info.lightmaxs[0] = info.relativelightorigin[0] + info.lightradius;
620 info.lightmaxs[1] = info.relativelightorigin[1] + info.lightradius;
621 info.lightmaxs[2] = info.relativelightorigin[2] + info.lightradius;
622 if (ent->model == NULL)
624 VectorCopy(info.lightmins, outmins);
625 VectorCopy(info.lightmaxs, outmaxs);
626 *outnumleafspointer = 0;
627 *outnumsurfacespointer = 0;
630 info.model = ent->model;
631 info.outleaflist = outleaflist;
632 info.outleafpvs = outleafpvs;
633 info.outnumleafs = 0;
634 info.outsurfacelist = outsurfacelist;
635 info.outsurfacepvs = outsurfacepvs;
636 info.outnumsurfaces = 0;
637 VectorCopy(info.relativelightorigin, info.outmins);
638 VectorCopy(info.relativelightorigin, info.outmaxs);
639 memset(outleafpvs, 0, (info.model->brush.num_leafs + 7) >> 3);
640 memset(outsurfacepvs, 0, (info.model->nummodelsurfaces + 7) >> 3);
641 if (info.model->brush.GetPVS)
642 info.pvs = info.model->brush.GetPVS(info.model, info.relativelightorigin);
645 R_UpdateAllTextureInfo(ent);
646 if (r_shadow_compilingrtlight)
648 // use portal recursion for exact light volume culling, and exact surface checking
649 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);
651 else if (r_shadow_realtime_dlight_portalculling.integer)
653 // use portal recursion for exact light volume culling, but not the expensive exact surface checking
654 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);
658 // use BSP recursion as lights are often small
659 R_Q1BSP_RecursiveGetLightInfo(&info, info.model->brush.data_nodes);
662 // limit combined leaf box to light boundaries
663 outmins[0] = max(info.outmins[0] - 1, info.lightmins[0]);
664 outmins[1] = max(info.outmins[1] - 1, info.lightmins[1]);
665 outmins[2] = max(info.outmins[2] - 1, info.lightmins[2]);
666 outmaxs[0] = min(info.outmaxs[0] + 1, info.lightmaxs[0]);
667 outmaxs[1] = min(info.outmaxs[1] + 1, info.lightmaxs[1]);
668 outmaxs[2] = min(info.outmaxs[2] + 1, info.lightmaxs[2]);
670 *outnumleafspointer = info.outnumleafs;
671 *outnumsurfacespointer = info.outnumsurfaces;
674 void R_Q1BSP_CompileShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist)
676 model_t *model = ent->model;
678 int surfacelistindex;
679 float projectdistance = lightradius + model->radius*2 + r_shadow_projectdistance.value;
681 r_shadow_compilingrtlight->static_meshchain_shadow = Mod_ShadowMesh_Begin(r_main_mempool, 32768, 32768, NULL, NULL, NULL, false, false, true);
682 R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
683 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
685 surface = model->data_surfaces + surfacelist[surfacelistindex];
686 texture = surface->texture;
687 if ((texture->basematerialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_WALL)) != MATERIALFLAG_WALL)
689 if ((texture->textureflags & (Q3TEXTUREFLAG_TWOSIDED | Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2)) || (ent->flags & RENDER_NOCULLFACE))
691 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);
693 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);
694 r_shadow_compilingrtlight->static_meshchain_shadow = Mod_ShadowMesh_Finish(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow, false, false);
697 void R_Q1BSP_DrawShadowVolume_Batch(const vec3_t relativelightorigin, const vec3_t lightmins, const vec3_t lightmaxs, int texturenumsurfaces, msurface_t **texturesurfacelist)
699 int texturesurfaceindex;
700 RSurf_PrepareVerticesForBatch(false, false, texturenumsurfaces, texturesurfacelist);
701 for (texturesurfaceindex = 0;texturesurfaceindex < texturenumsurfaces;texturesurfaceindex++)
703 msurface_t *surface = texturesurfacelist[texturesurfaceindex];
704 R_Shadow_MarkVolumeFromBox(surface->num_firsttriangle, surface->num_triangles, rsurface_vertex3f, rsurface_model->surfmesh.data_element3i, relativelightorigin, lightmins, lightmaxs, surface->mins, surface->maxs);
708 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)
710 model_t *model = ent->model;
712 int modelsurfacelistindex;
714 float projectdistance = lightradius + model->radius*2 + r_shadow_projectdistance.value;
716 const int maxsurfacelist = 1024;
717 int numsurfacelist = 0;
718 msurface_t *surfacelist[1024];
719 // check the box in modelspace, it was already checked in worldspace
720 if (!BoxesOverlap(model->normalmins, model->normalmaxs, lightmins, lightmaxs))
722 R_UpdateAllTextureInfo(ent);
723 if (model->brush.shadowmesh)
725 R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
726 for (modelsurfacelistindex = 0;modelsurfacelistindex < modelnumsurfaces;modelsurfacelistindex++)
728 surface = model->data_surfaces + modelsurfacelist[modelsurfacelistindex];
729 t = surface->texture->currentframe;
730 if ((t->currentmaterialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_WALL)) != MATERIALFLAG_WALL)
732 if ((t->textureflags & (Q3TEXTUREFLAG_TWOSIDED | Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2)) || (ent->flags & RENDER_NOCULLFACE))
734 R_Shadow_MarkVolumeFromBox(surface->num_firstshadowmeshtriangle, surface->num_triangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, relativelightorigin, lightmins, lightmaxs, surface->mins, surface->maxs);
736 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);
740 projectdistance = lightradius + model->radius*2;
741 RSurf_ActiveEntity(ent, false, false);
742 R_Shadow_PrepareShadowMark(model->surfmesh.num_triangles);
743 // identify lit faces within the bounding box
744 for (modelsurfacelistindex = 0;modelsurfacelistindex < modelnumsurfaces;modelsurfacelistindex++)
746 surface = model->data_surfaces + modelsurfacelist[modelsurfacelistindex];
747 if (t != surface->texture || numsurfacelist >= maxsurfacelist)
751 R_Q1BSP_DrawShadowVolume_Batch(relativelightorigin, lightmins, lightmaxs, numsurfacelist, surfacelist);
754 t = surface->texture;
755 rsurface_texture = t->currentframe;
756 f = (rsurface_texture->currentmaterialflags & (MATERIALFLAG_NODRAW | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_WALL)) == MATERIALFLAG_WALL;
758 if (f && surface->num_triangles)
759 surfacelist[numsurfacelist++] = surface;
762 R_Q1BSP_DrawShadowVolume_Batch(relativelightorigin, lightmins, lightmaxs, numsurfacelist, surfacelist);
763 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);
767 #define BATCHSIZE 256
769 static void R_Q1BSP_DrawLight_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
771 int surfacelistindex, batchcount;
773 msurface_t *batchsurfaces[BATCHSIZE];
774 // note: in practice this never actualy batches, oh well
775 R_Shadow_RenderMode_Begin();
776 R_Shadow_RenderMode_ActiveLight((rtlight_t *)rtlight);
777 R_Shadow_RenderMode_Lighting(false, true);
778 R_Shadow_SetupEntityLight(ent);
781 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
783 msurface_t *surface = ent->model->data_surfaces + surfacelist[surfacelistindex];
784 if (t != surface->texture)
787 R_Shadow_RenderSurfacesLighting(batchcount, batchsurfaces);
789 t = surface->texture;
790 R_UpdateTextureInfo(ent, t);
791 rsurface_texture = t->currentframe;
793 batchsurfaces[batchcount++] = surface;
796 R_Shadow_RenderSurfacesLighting(batchcount, batchsurfaces);
797 R_Shadow_RenderMode_End();
800 static void R_Q1BSP_DrawLight_TransparentBatch(int batchnumsurfaces, msurface_t **batchsurfacelist)
802 int batchsurfaceindex;
803 msurface_t *batchsurface;
804 vec3_t tempcenter, center;
805 for (batchsurfaceindex = 0;batchsurfaceindex < batchnumsurfaces;batchsurfaceindex++)
807 batchsurface = batchsurfacelist[batchsurfaceindex];
808 tempcenter[0] = (batchsurface->mins[0] + batchsurface->maxs[0]) * 0.5f;
809 tempcenter[1] = (batchsurface->mins[1] + batchsurface->maxs[1]) * 0.5f;
810 tempcenter[2] = (batchsurface->mins[2] + batchsurface->maxs[2]) * 0.5f;
811 Matrix4x4_Transform(&rsurface_entity->matrix, tempcenter, center);
812 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);
816 #define RSURF_MAX_BATCHSURFACES 1024
818 void R_Q1BSP_DrawLight(entity_render_t *ent, int numsurfaces, const int *surfacelist)
820 model_t *model = ent->model;
822 int surfacelistindex, batchnumsurfaces;
823 msurface_t *batchsurfacelist[RSURF_MAX_BATCHSURFACES];
827 RSurf_ActiveEntity(ent, true, true);
828 R_UpdateAllTextureInfo(ent);
830 rsurface_texture = NULL;
832 batchnumsurfaces = 0;
834 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
836 if ((ent == r_refdef.worldentity && !r_viewcache.world_surfacevisible[surfacelist[surfacelistindex]]))
838 surface = model->data_surfaces + surfacelist[surfacelistindex];
839 r_refdef.stats.lights_lighttriangles += surface->num_triangles;
840 if (tex != surface->texture)
842 if (batchnumsurfaces > 0)
844 if (rsurface_texture->currentmaterialflags & MATERIALFLAG_BLENDED)
845 R_Q1BSP_DrawLight_TransparentBatch(batchnumsurfaces, batchsurfacelist);
847 R_Shadow_RenderSurfacesLighting(batchnumsurfaces, batchsurfacelist);
848 batchnumsurfaces = 0;
850 tex = surface->texture;
851 rsurface_texture = surface->texture->currentframe;
852 skip = (rsurface_texture->currentmaterialflags & MATERIALFLAG_SKY) != 0;
856 if (!skip && surface->num_triangles)
858 if (batchnumsurfaces == RSURF_MAX_BATCHSURFACES)
860 if (rsurface_texture->currentmaterialflags & MATERIALFLAG_BLENDED)
861 R_Q1BSP_DrawLight_TransparentBatch(batchnumsurfaces, batchsurfacelist);
863 R_Shadow_RenderSurfacesLighting(batchnumsurfaces, batchsurfacelist);
864 batchnumsurfaces = 0;
866 batchsurfacelist[batchnumsurfaces++] = surface;
869 if (batchnumsurfaces > 0)
871 if (rsurface_texture->currentmaterialflags & MATERIALFLAG_BLENDED)
872 R_Q1BSP_DrawLight_TransparentBatch(batchnumsurfaces, batchsurfacelist);
874 R_Shadow_RenderSurfacesLighting(batchnumsurfaces, batchsurfacelist);
875 batchnumsurfaces = 0;
877 qglEnable(GL_CULL_FACE);CHECKGLERROR
881 void R_ReplaceWorldTexture (void)
886 const char *r, *newt;
887 m = r_refdef.worldmodel;
891 Con_Print("r_replacemaptexture <texname> <newtexname> - replaces texture\n");
892 Con_Print("r_replacemaptexture <texname> - switch back to default texture\n");
895 if(!cl.islocalgame || !cl.worldmodel)
897 Con_Print("This command works only in singleplayer\n");
904 for(i=0,t=m->data_textures;i<m->num_textures;i++,t++)
906 if(t->width && !strcasecmp(t->name, r))
908 if(Mod_LoadSkinFrame(&t->skin, (char*)newt, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, r_fullbrights.integer))
910 Con_Printf("%s replaced with %s\n", r, newt);
915 Con_Printf("%s was not found\n", newt);
916 Mod_LoadSkinFrame(&t->skin, (char*)r, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, r_fullbrights.integer);//back to default
924 void R_ListWorldTextures (void)
929 m = r_refdef.worldmodel;
931 Con_Print("Worldmodel textures :\n");
932 for(i=0,t=m->data_textures;i<m->num_textures;i++,t++)
933 if(t->skin.base != r_texture_notexture)
934 Con_Printf("%s\n", t->name);
938 static void gl_surf_start(void)
942 static void gl_surf_shutdown(void)
946 static void gl_surf_newmap(void)
951 void GL_Surf_Init(void)
954 Cvar_RegisterVariable(&r_ambient);
955 Cvar_RegisterVariable(&r_lockpvs);
956 Cvar_RegisterVariable(&r_lockvisibility);
957 Cvar_RegisterVariable(&r_useportalculling);
958 Cvar_RegisterVariable(&r_q3bsp_renderskydepth);
960 Cmd_AddCommand ("r_replacemaptexture", R_ReplaceWorldTexture, "override a map texture for testing purposes"); // By [515]
961 Cmd_AddCommand ("r_listmaptextures", R_ListWorldTextures, "list all textures used by the current map"); // By [515]
963 //R_RegisterModule("GL_Surf", gl_surf_start, gl_surf_shutdown, gl_surf_newmap);