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
28 cvar_t r_ambient = {0, "r_ambient", "0", "brightens map, 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", "2", "improve framerate with r_novis 1 by using portal culling - still not as good as compiled visibility data in the map, but it helps (a value of 2 forces use of this even with vis data, which improves framerates in maps without too much complexity, but hurts in extremely complex maps, which is why 2 is not the default mode)"};
32 cvar_t r_usesurfaceculling = {0, "r_usesurfaceculling", "1", "skip off-screen surfaces (1 = cull surfaces if the map is likely to benefit, 2 = always cull surfaces)"};
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"};
34 extern cvar_t vid_sRGB;
35 extern cvar_t vid_sRGB_fallback;
41 Combine and scale multiple lightmaps into the 8.8 format in blocklights
44 void R_BuildLightMap (const entity_render_t *ent, msurface_t *surface)
46 int smax, tmax, i, size, size3, maps, l;
48 unsigned char *lightmap, *out, *stain;
49 dp_model_t *model = ent->model;
51 unsigned char *templight;
53 smax = (surface->lightmapinfo->extents[0]>>4)+1;
54 tmax = (surface->lightmapinfo->extents[1]>>4)+1;
58 r_refdef.stats.lightmapupdatepixels += size;
59 r_refdef.stats.lightmapupdates++;
61 if (cl.buildlightmapmemorysize < size*sizeof(int[3]))
63 cl.buildlightmapmemorysize = size*sizeof(int[3]);
64 if (cl.buildlightmapmemory)
65 Mem_Free(cl.buildlightmapmemory);
66 cl.buildlightmapmemory = (unsigned char *) Mem_Alloc(cls.levelmempool, cl.buildlightmapmemorysize);
69 // these both point at the same buffer, templight is only used for final
70 // processing and can replace the intblocklights data as it goes
71 intblocklights = (int *)cl.buildlightmapmemory;
72 templight = (unsigned char *)cl.buildlightmapmemory;
74 // update cached lighting info
75 model->brushq1.lightmapupdateflags[surface - model->data_surfaces] = false;
77 lightmap = surface->lightmapinfo->samples;
79 // set to full bright if no light data
81 if (!model->brushq1.lightdata)
83 for (i = 0;i < size3;i++)
89 memset(bl, 0, size3*sizeof(*bl));
91 // add all the lightmaps
93 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++, lightmap += size3)
94 for (scale = r_refdef.scene.lightstylevalue[surface->lightmapinfo->styles[maps]], i = 0;i < size3;i++)
95 bl[i] += lightmap[i] * scale;
98 stain = surface->lightmapinfo->stainsamples;
101 // the >> 16 shift adjusts down 8 bits to account for the stainmap
102 // scaling, and remaps the 0-65536 (2x overbright) to 0-256, it will
103 // be doubled during rendering to achieve 2x overbright
104 // (0 = 0.0, 128 = 1.0, 256 = 2.0)
107 for (i = 0;i < size;i++, bl += 3, stain += 3, out += 4)
109 l = (bl[0] * stain[0]) >> 16;out[2] = min(l, 255);
110 l = (bl[1] * stain[1]) >> 16;out[1] = min(l, 255);
111 l = (bl[2] * stain[2]) >> 16;out[0] = min(l, 255);
117 for (i = 0;i < size;i++, bl += 3, out += 4)
119 l = bl[0] >> 8;out[2] = min(l, 255);
120 l = bl[1] >> 8;out[1] = min(l, 255);
121 l = bl[2] >> 8;out[0] = min(l, 255);
126 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
127 Image_MakesRGBColorsFromLinear_Lightmap(templight, templight, size);
128 R_UpdateTexture(surface->lightmaptexture, templight, surface->lightmapinfo->lightmaporigin[0], surface->lightmapinfo->lightmaporigin[1], 0, smax, tmax, 1);
130 // update the surface's deluxemap if it has one
131 if (surface->deluxemaptexture != r_texture_blanknormalmap)
134 unsigned char *normalmap = surface->lightmapinfo->nmapsamples;
135 lightmap = surface->lightmapinfo->samples;
136 // clear to no normalmap
138 memset(bl, 0, size3*sizeof(*bl));
139 // add all the normalmaps
140 if (lightmap && normalmap)
142 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++, lightmap += size3, normalmap += size3)
144 for (scale = r_refdef.scene.lightstylevalue[surface->lightmapinfo->styles[maps]], i = 0;i < size;i++)
146 // add the normalmap with weighting proportional to the style's lightmap intensity
147 l = (int)(VectorLength(lightmap + i*3) * scale);
148 bl[i*3+0] += ((int)normalmap[i*3+0] - 128) * l;
149 bl[i*3+1] += ((int)normalmap[i*3+1] - 128) * l;
150 bl[i*3+2] += ((int)normalmap[i*3+2] - 128) * l;
156 // we simply renormalize the weighted normals to get a valid deluxemap
157 for (i = 0;i < size;i++, bl += 3, out += 4)
161 l = (int)(n[0] * 128 + 128);out[2] = bound(0, l, 255);
162 l = (int)(n[1] * 128 + 128);out[1] = bound(0, l, 255);
163 l = (int)(n[2] * 128 + 128);out[0] = bound(0, l, 255);
166 R_UpdateTexture(surface->deluxemaptexture, templight, surface->lightmapinfo->lightmaporigin[0], surface->lightmapinfo->lightmaporigin[1], 0, smax, tmax, 1);
170 void R_StainNode (mnode_t *node, dp_model_t *model, const vec3_t origin, float radius, const float fcolor[8])
172 float ndist, a, ratio, maxdist, maxdist2, maxdist3, invradius, sdtable[256], td, dist2;
173 msurface_t *surface, *endsurface;
174 int i, s, t, smax, tmax, smax3, impacts, impactt, stained;
178 maxdist = radius * radius;
179 invradius = 1.0f / radius;
184 ndist = PlaneDiff(origin, node->plane);
187 node = node->children[0];
192 node = node->children[1];
196 dist2 = ndist * ndist;
197 maxdist3 = maxdist - dist2;
199 if (node->plane->type < 3)
201 VectorCopy(origin, impact);
202 impact[node->plane->type] -= ndist;
206 impact[0] = origin[0] - node->plane->normal[0] * ndist;
207 impact[1] = origin[1] - node->plane->normal[1] * ndist;
208 impact[2] = origin[2] - node->plane->normal[2] * ndist;
211 for (surface = model->data_surfaces + node->firstsurface, endsurface = surface + node->numsurfaces;surface < endsurface;surface++)
213 if (surface->lightmapinfo->stainsamples)
215 smax = (surface->lightmapinfo->extents[0] >> 4) + 1;
216 tmax = (surface->lightmapinfo->extents[1] >> 4) + 1;
218 impacts = (int)(DotProduct (impact, surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3] - surface->lightmapinfo->texturemins[0]);
219 impactt = (int)(DotProduct (impact, surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3] - surface->lightmapinfo->texturemins[1]);
221 s = bound(0, impacts, smax * 16) - impacts;
222 t = bound(0, impactt, tmax * 16) - impactt;
223 i = (int)(s * s + t * t + dist2);
224 if ((i > maxdist) || (smax > (int)(sizeof(sdtable)/sizeof(sdtable[0])))) // smax overflow fix from Andreas Dehmel
227 // reduce calculations
228 for (s = 0, i = impacts; s < smax; s++, i -= 16)
229 sdtable[s] = i * i + dist2;
231 bl = surface->lightmapinfo->stainsamples;
236 for (t = 0;t < tmax;t++, i -= 16)
239 // make sure some part of it is visible on this line
242 maxdist2 = maxdist - td;
243 for (s = 0;s < smax;s++)
245 if (sdtable[s] < maxdist2)
247 ratio = lhrandom(0.0f, 1.0f);
248 a = (fcolor[3] + ratio * fcolor[7]) * (1.0f - sqrt(sdtable[s] + td) * invradius);
249 if (a >= (1.0f / 64.0f))
253 bl[0] = (unsigned char) ((float) bl[0] + a * ((fcolor[0] + ratio * fcolor[4]) - (float) bl[0]));
254 bl[1] = (unsigned char) ((float) bl[1] + a * ((fcolor[1] + ratio * fcolor[5]) - (float) bl[1]));
255 bl[2] = (unsigned char) ((float) bl[2] + a * ((fcolor[2] + ratio * fcolor[6]) - (float) bl[2]));
265 // force lightmap upload
267 model->brushq1.lightmapupdateflags[surface - model->data_surfaces] = true;
271 if (node->children[0]->plane)
273 if (node->children[1]->plane)
275 R_StainNode(node->children[0], model, origin, radius, fcolor);
276 node = node->children[1];
281 node = node->children[0];
285 else if (node->children[1]->plane)
287 node = node->children[1];
292 void R_Stain (const vec3_t origin, float radius, int cr1, int cg1, int cb1, int ca1, int cr2, int cg2, int cb2, int ca2)
296 entity_render_t *ent;
299 if (r_refdef.scene.worldmodel == NULL || !r_refdef.scene.worldmodel->brush.data_nodes || !r_refdef.scene.worldmodel->brushq1.lightdata)
304 fcolor[3] = ca1 * (1.0f / 64.0f);
305 fcolor[4] = cr2 - cr1;
306 fcolor[5] = cg2 - cg1;
307 fcolor[6] = cb2 - cb1;
308 fcolor[7] = (ca2 - ca1) * (1.0f / 64.0f);
310 R_StainNode(r_refdef.scene.worldmodel->brush.data_nodes + r_refdef.scene.worldmodel->brushq1.hulls[0].firstclipnode, r_refdef.scene.worldmodel, origin, radius, fcolor);
312 // look for embedded bmodels
313 for (n = 0;n < cl.num_brushmodel_entities;n++)
315 ent = &cl.entities[cl.brushmodel_entities[n]].render;
317 if (model && model->name[0] == '*')
319 if (model->brush.data_nodes)
321 Matrix4x4_Transform(&ent->inversematrix, origin, org);
322 R_StainNode(model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, model, org, radius, fcolor);
330 =============================================================
334 =============================================================
337 static void R_DrawPortal_Callback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
339 // due to the hacky nature of this function's parameters, this is never
340 // called with a batch, so numsurfaces is always 1, and the surfacelist
341 // contains only a leaf number for coloring purposes
342 const mportal_t *portal = (mportal_t *)ent;
346 float vertex3f[POLYGONELEMENTS_MAXPOINTS*3];
348 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
351 GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
353 GL_CullFace(GL_NONE);
354 R_EntityMatrix(&identitymatrix);
356 numpoints = min(portal->numpoints, POLYGONELEMENTS_MAXPOINTS);
358 // R_Mesh_ResetTextureState();
360 isvis = (portal->here->clusterindex >= 0 && portal->past->clusterindex >= 0 && portal->here->clusterindex != portal->past->clusterindex);
362 i = surfacelist[0] >> 1;
363 GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f) * r_refdef.view.colorscale,
364 ((i & 0x0038) >> 3) * (1.0f / 7.0f) * r_refdef.view.colorscale,
365 ((i & 0x01C0) >> 6) * (1.0f / 7.0f) * r_refdef.view.colorscale,
366 isvis ? 0.125f : 0.03125f);
367 for (i = 0, v = vertex3f;i < numpoints;i++, v += 3)
368 VectorCopy(portal->points[i].position, v);
369 R_Mesh_PrepareVertices_Generic_Arrays(numpoints, vertex3f, NULL, NULL);
370 R_SetupShader_Generic_NoTexture(false, false);
371 R_Mesh_Draw(0, numpoints, 0, numpoints - 2, polygonelement3i, NULL, 0, polygonelement3s, NULL, 0);
374 // LordHavoc: this is just a nice debugging tool, very slow
375 void R_DrawPortals(void)
380 dp_model_t *model = r_refdef.scene.worldmodel;
383 for (leafnum = 0;leafnum < r_refdef.scene.worldmodel->brush.num_leafs;leafnum++)
385 if (r_refdef.viewcache.world_leafvisible[leafnum])
387 //for (portalnum = 0, portal = model->brush.data_portals;portalnum < model->brush.num_portals;portalnum++, portal++)
388 for (portal = r_refdef.scene.worldmodel->brush.data_leafs[leafnum].portals;portal;portal = portal->next)
390 if (portal->numpoints <= POLYGONELEMENTS_MAXPOINTS)
391 if (!R_CullBox(portal->mins, portal->maxs))
394 for (i = 0;i < portal->numpoints;i++)
395 VectorAdd(center, portal->points[i].position, center);
396 f = ixtable[portal->numpoints];
397 VectorScale(center, f, center);
398 R_MeshQueue_AddTransparent(center, R_DrawPortal_Callback, (entity_render_t *)portal, leafnum, rsurface.rtlight);
405 static void R_View_WorldVisibility_CullSurfaces(void)
408 int surfaceindexstart;
410 unsigned char *surfacevisible;
411 msurface_t *surfaces;
412 dp_model_t *model = r_refdef.scene.worldmodel;
415 if (r_trippy.integer)
417 if (r_usesurfaceculling.integer < 1)
419 surfaceindexstart = model->firstmodelsurface;
420 surfaceindexend = surfaceindexstart + model->nummodelsurfaces;
421 surfaces = model->data_surfaces;
422 surfacevisible = r_refdef.viewcache.world_surfacevisible;
423 for (surfaceindex = surfaceindexstart;surfaceindex < surfaceindexend;surfaceindex++)
424 if (surfacevisible[surfaceindex] && R_CullBox(surfaces[surfaceindex].mins, surfaces[surfaceindex].maxs))
425 surfacevisible[surfaceindex] = 0;
428 void R_View_WorldVisibility(qboolean forcenovis)
433 dp_model_t *model = r_refdef.scene.worldmodel;
438 if (r_refdef.view.usecustompvs)
440 // clear the visible surface and leaf flags arrays
441 memset(r_refdef.viewcache.world_surfacevisible, 0, model->num_surfaces);
442 memset(r_refdef.viewcache.world_leafvisible, 0, model->brush.num_leafs);
443 r_refdef.viewcache.world_novis = false;
445 // simply cull each marked leaf to the frustum (view pyramid)
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_refdef.viewcache.world_pvsbits, leaf->clusterindex) && !R_CullBox(leaf->mins, leaf->maxs))
451 r_refdef.stats.world_leafs++;
452 r_refdef.viewcache.world_leafvisible[j] = true;
453 if (leaf->numleafsurfaces)
454 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
455 r_refdef.viewcache.world_surfacevisible[*mark] = true;
458 R_View_WorldVisibility_CullSurfaces();
462 // if possible find the leaf the view origin is in
463 viewleaf = model->brush.PointInLeaf ? model->brush.PointInLeaf(model, r_refdef.view.origin) : NULL;
464 // if possible fetch the visible cluster bits
465 if (!r_lockpvs.integer && model->brush.FatPVS)
466 model->brush.FatPVS(model, r_refdef.view.origin, 2, r_refdef.viewcache.world_pvsbits, (r_refdef.viewcache.world_numclusters+7)>>3, false);
468 if (!r_lockvisibility.integer)
470 // clear the visible surface and leaf flags arrays
471 memset(r_refdef.viewcache.world_surfacevisible, 0, model->num_surfaces);
472 memset(r_refdef.viewcache.world_leafvisible, 0, model->brush.num_leafs);
474 r_refdef.viewcache.world_novis = false;
476 // if floating around in the void (no pvs data available, and no
477 // portals available), simply use all on-screen leafs.
478 if (!viewleaf || viewleaf->clusterindex < 0 || forcenovis || r_trippy.integer)
480 // no visibility method: (used when floating around in the void)
481 // simply cull each leaf to the frustum (view pyramid)
482 // similar to quake's RecursiveWorldNode but without cache misses
483 r_refdef.viewcache.world_novis = true;
484 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
486 if (leaf->clusterindex < 0)
488 // if leaf is in current pvs and on the screen, mark its surfaces
489 if (!R_CullBox(leaf->mins, leaf->maxs))
491 r_refdef.stats.world_leafs++;
492 r_refdef.viewcache.world_leafvisible[j] = true;
493 if (leaf->numleafsurfaces)
494 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
495 r_refdef.viewcache.world_surfacevisible[*mark] = true;
499 // just check if each leaf in the PVS is on screen
500 // (unless portal culling is enabled)
501 else if (!model->brush.data_portals || r_useportalculling.integer < 1 || (r_useportalculling.integer < 2 && !r_novis.integer))
504 // simply check if each leaf is in the Potentially Visible Set,
505 // and cull to frustum (view pyramid)
506 // similar to quake's RecursiveWorldNode but without cache misses
507 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
509 if (leaf->clusterindex < 0)
511 // if leaf is in current pvs and on the screen, mark its surfaces
512 if (CHECKPVSBIT(r_refdef.viewcache.world_pvsbits, leaf->clusterindex) && !R_CullBox(leaf->mins, leaf->maxs))
514 r_refdef.stats.world_leafs++;
515 r_refdef.viewcache.world_leafvisible[j] = true;
516 if (leaf->numleafsurfaces)
517 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
518 r_refdef.viewcache.world_surfacevisible[*mark] = true;
522 // if desired use a recursive portal flow, culling each portal to
523 // frustum and checking if the leaf the portal leads to is in the pvs
528 mleaf_t *leafstack[8192];
529 // simple-frustum portal method:
530 // follows portals leading outward from viewleaf, does not venture
531 // offscreen or into leafs that are not visible, faster than
532 // Quake's RecursiveWorldNode and vastly better in unvised maps,
533 // often culls some surfaces that pvs alone would miss
534 // (such as a room in pvs that is hidden behind a wall, but the
535 // passage leading to the room is off-screen)
536 leafstack[0] = viewleaf;
540 leaf = leafstack[--leafstackpos];
541 if (r_refdef.viewcache.world_leafvisible[leaf - model->brush.data_leafs])
543 if (leaf->clusterindex < 0)
545 r_refdef.stats.world_leafs++;
546 r_refdef.viewcache.world_leafvisible[leaf - model->brush.data_leafs] = true;
547 // mark any surfaces bounding this leaf
548 if (leaf->numleafsurfaces)
549 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
550 r_refdef.viewcache.world_surfacevisible[*mark] = true;
551 // follow portals into other leafs
553 // if viewer is behind portal (portal faces outward into the scene)
554 // and the portal polygon's bounding box is on the screen
555 // and the leaf has not been visited yet
556 // and the leaf is visible in the pvs
557 // (the first two checks won't cause as many cache misses as the leaf checks)
558 for (p = leaf->portals;p;p = p->next)
560 r_refdef.stats.world_portals++;
561 if (DotProduct(r_refdef.view.origin, p->plane.normal) < (p->plane.dist + 1)
562 && !r_refdef.viewcache.world_leafvisible[p->past - model->brush.data_leafs]
563 && CHECKPVSBIT(r_refdef.viewcache.world_pvsbits, p->past->clusterindex)
564 && !R_CullBox(p->mins, p->maxs)
565 && leafstackpos < (int)(sizeof(leafstack) / sizeof(leafstack[0])))
566 leafstack[leafstackpos++] = p->past;
572 R_View_WorldVisibility_CullSurfaces();
575 void R_Q1BSP_DrawSky(entity_render_t *ent)
577 if (ent->model == NULL)
579 if (ent == r_refdef.scene.worldentity)
580 R_DrawWorldSurfaces(true, true, false, false, false);
582 R_DrawModelSurfaces(ent, true, true, false, false, false);
585 extern void R_Water_AddWaterPlane(msurface_t *surface, int entno);
586 void R_Q1BSP_DrawAddWaterPlanes(entity_render_t *ent)
588 int i, j, n, flagsmask;
589 dp_model_t *model = ent->model;
590 msurface_t *surfaces;
594 if (ent == r_refdef.scene.worldentity)
595 RSurf_ActiveWorldEntity();
597 RSurf_ActiveModelEntity(ent, true, false, false);
599 surfaces = model->data_surfaces;
600 flagsmask = MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA;
602 // add visible surfaces to draw list
603 if (ent == r_refdef.scene.worldentity)
605 for (i = 0;i < model->nummodelsurfaces;i++)
607 j = model->sortedmodelsurfaces[i];
608 if (r_refdef.viewcache.world_surfacevisible[j])
609 if (surfaces[j].texture->basematerialflags & flagsmask)
610 R_Water_AddWaterPlane(surfaces + j, 0);
615 if(ent->entitynumber >= MAX_EDICTS) // && CL_VM_TransformView(ent->entitynumber - MAX_EDICTS, NULL, NULL, NULL))
616 n = ent->entitynumber;
619 for (i = 0;i < model->nummodelsurfaces;i++)
621 j = model->sortedmodelsurfaces[i];
622 if (surfaces[j].texture->basematerialflags & flagsmask)
623 R_Water_AddWaterPlane(surfaces + j, n);
626 rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
629 void R_Q1BSP_Draw(entity_render_t *ent)
631 dp_model_t *model = ent->model;
634 if (ent == r_refdef.scene.worldentity)
635 R_DrawWorldSurfaces(false, true, false, false, false);
637 R_DrawModelSurfaces(ent, false, true, false, false, false);
640 void R_Q1BSP_DrawDepth(entity_render_t *ent)
642 dp_model_t *model = ent->model;
645 GL_ColorMask(0,0,0,0);
648 GL_BlendFunc(GL_ONE, GL_ZERO);
650 // R_Mesh_ResetTextureState();
651 R_SetupShader_DepthOrShadow(false);
652 if (ent == r_refdef.scene.worldentity)
653 R_DrawWorldSurfaces(false, false, true, false, false);
655 R_DrawModelSurfaces(ent, false, false, true, false, false);
656 GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
659 void R_Q1BSP_DrawDebug(entity_render_t *ent)
661 if (ent->model == NULL)
663 if (ent == r_refdef.scene.worldentity)
664 R_DrawWorldSurfaces(false, false, false, true, false);
666 R_DrawModelSurfaces(ent, false, false, false, true, false);
669 void R_Q1BSP_DrawPrepass(entity_render_t *ent)
671 dp_model_t *model = ent->model;
674 if (ent == r_refdef.scene.worldentity)
675 R_DrawWorldSurfaces(false, true, false, false, true);
677 R_DrawModelSurfaces(ent, false, true, false, false, true);
680 typedef struct r_q1bsp_getlightinfo_s
683 vec3_t relativelightorigin;
686 unsigned char *outleafpvs;
688 unsigned char *visitingleafpvs;
690 unsigned char *outsurfacepvs;
691 unsigned char *tempsurfacepvs;
692 unsigned char *outshadowtrispvs;
693 unsigned char *outlighttrispvs;
699 const unsigned char *pvs;
700 qboolean svbsp_active;
701 qboolean svbsp_insertoccluder;
702 int numfrustumplanes;
703 const mplane_t *frustumplanes;
705 r_q1bsp_getlightinfo_t;
707 #define GETLIGHTINFO_MAXNODESTACK 4096
709 static void R_Q1BSP_RecursiveGetLightInfo_BSP(r_q1bsp_getlightinfo_t *info, qboolean skipsurfaces)
712 mnode_t *nodestack[GETLIGHTINFO_MAXNODESTACK];
713 int nodestackpos = 0;
720 const msurface_t *surface;
721 const msurface_t *surfaces = info->model->data_surfaces;
723 int leafsurfaceindex;
725 int triangleindex, t;
726 int currentmaterialflags;
732 qboolean frontsidecasting = r_shadow_frontsidecasting.integer != 0;
733 qboolean svbspactive = info->svbsp_active;
734 qboolean svbspinsertoccluder = info->svbsp_insertoccluder;
735 const int *leafsurfaceindices;
739 static float points[128][3];
740 // push the root node onto our nodestack
741 nodestack[nodestackpos++] = info->model->brush.data_nodes;
742 // we'll be done when the nodestack is empty
745 // get a node from the stack to process
746 node = nodestack[--nodestackpos];
747 // is it a node or a leaf?
753 if (!BoxesOverlap(info->lightmins, info->lightmaxs, node->mins, node->maxs))
757 if (!r_shadow_compilingrtlight && R_CullBoxCustomPlanes(node->mins, node->maxs, rtlight->cached_numfrustumplanes, rtlight->cached_frustumplanes))
760 // axial planes can be processed much more quickly
764 if (info->lightmins[plane->type] > plane->dist)
765 nodestack[nodestackpos++] = node->children[0];
766 else if (info->lightmaxs[plane->type] < plane->dist)
767 nodestack[nodestackpos++] = node->children[1];
770 // recurse front side first because the svbsp building prefers it
771 if (info->relativelightorigin[plane->type] >= plane->dist)
773 if (nodestackpos < GETLIGHTINFO_MAXNODESTACK)
774 nodestack[nodestackpos++] = node->children[0];
775 nodestack[nodestackpos++] = node->children[1];
779 if (nodestackpos < GETLIGHTINFO_MAXNODESTACK)
780 nodestack[nodestackpos++] = node->children[1];
781 nodestack[nodestackpos++] = node->children[0];
788 sides = BoxOnPlaneSide(info->lightmins, info->lightmaxs, plane);
792 continue; // ERROR: NAN bounding box!
794 nodestack[nodestackpos++] = node->children[0];
797 nodestack[nodestackpos++] = node->children[1];
800 // recurse front side first because the svbsp building prefers it
801 if (PlaneDist(info->relativelightorigin, plane) >= 0)
803 if (nodestackpos < GETLIGHTINFO_MAXNODESTACK)
804 nodestack[nodestackpos++] = node->children[0];
805 nodestack[nodestackpos++] = node->children[1];
809 if (nodestackpos < GETLIGHTINFO_MAXNODESTACK)
810 nodestack[nodestackpos++] = node->children[1];
811 nodestack[nodestackpos++] = node->children[0];
820 leaf = (mleaf_t *)node;
822 if (r_shadow_frontsidecasting.integer && info->pvs != NULL && !CHECKPVSBIT(info->pvs, leaf->clusterindex))
826 if (!BoxesOverlap(info->lightmins, info->lightmaxs, leaf->mins, leaf->maxs))
830 if (!r_shadow_compilingrtlight && R_CullBoxCustomPlanes(leaf->mins, leaf->maxs, info->numfrustumplanes, info->frustumplanes))
836 // we can occlusion test the leaf by checking if all of its portals
837 // are occluded (unless the light is in this leaf - but that was
838 // already handled by the caller)
839 for (portal = leaf->portals;portal;portal = portal->next)
841 for (i = 0;i < portal->numpoints;i++)
842 VectorCopy(portal->points[i].position, points[i]);
843 if (SVBSP_AddPolygon(&r_svbsp, portal->numpoints, points[0], false, NULL, NULL, 0) & 2)
846 if (leaf->portals && portal == NULL)
847 continue; // no portals of this leaf visible
850 // add this leaf to the reduced light bounds
851 info->outmins[0] = min(info->outmins[0], leaf->mins[0]);
852 info->outmins[1] = min(info->outmins[1], leaf->mins[1]);
853 info->outmins[2] = min(info->outmins[2], leaf->mins[2]);
854 info->outmaxs[0] = max(info->outmaxs[0], leaf->maxs[0]);
855 info->outmaxs[1] = max(info->outmaxs[1], leaf->maxs[1]);
856 info->outmaxs[2] = max(info->outmaxs[2], leaf->maxs[2]);
858 // mark this leaf as being visible to the light
859 if (info->outleafpvs)
861 int leafindex = leaf - info->model->brush.data_leafs;
862 if (!CHECKPVSBIT(info->outleafpvs, leafindex))
864 SETPVSBIT(info->outleafpvs, leafindex);
865 info->outleaflist[info->outnumleafs++] = leafindex;
869 // when using BIH, we skip the surfaces here
873 // iterate the surfaces linked by this leaf and check their triangles
874 leafsurfaceindices = leaf->firstleafsurface;
875 numleafsurfaces = leaf->numleafsurfaces;
876 if (svbspinsertoccluder)
878 for (leafsurfaceindex = 0;leafsurfaceindex < numleafsurfaces;leafsurfaceindex++)
880 surfaceindex = leafsurfaceindices[leafsurfaceindex];
881 if (CHECKPVSBIT(info->outsurfacepvs, surfaceindex))
883 SETPVSBIT(info->outsurfacepvs, surfaceindex);
884 surface = surfaces + surfaceindex;
885 if (!BoxesOverlap(info->lightmins, info->lightmaxs, surface->mins, surface->maxs))
887 currentmaterialflags = R_GetCurrentTexture(surface->texture)->currentmaterialflags;
888 castshadow = !(currentmaterialflags & MATERIALFLAG_NOSHADOW);
891 insidebox = BoxInsideBox(surface->mins, surface->maxs, info->lightmins, info->lightmaxs);
892 for (triangleindex = 0, t = surface->num_firstshadowmeshtriangle, e = info->model->brush.shadowmesh->element3i + t * 3;triangleindex < surface->num_triangles;triangleindex++, t++, e += 3)
894 v[0] = info->model->brush.shadowmesh->vertex3f + e[0] * 3;
895 v[1] = info->model->brush.shadowmesh->vertex3f + e[1] * 3;
896 v[2] = info->model->brush.shadowmesh->vertex3f + e[2] * 3;
897 VectorCopy(v[0], v2[0]);
898 VectorCopy(v[1], v2[1]);
899 VectorCopy(v[2], v2[2]);
900 if (insidebox || TriangleOverlapsBox(v2[0], v2[1], v2[2], info->lightmins, info->lightmaxs))
901 SVBSP_AddPolygon(&r_svbsp, 3, v2[0], true, NULL, NULL, 0);
907 for (leafsurfaceindex = 0;leafsurfaceindex < numleafsurfaces;leafsurfaceindex++)
909 surfaceindex = leafsurfaceindices[leafsurfaceindex];
910 if (CHECKPVSBIT(info->outsurfacepvs, surfaceindex))
912 SETPVSBIT(info->outsurfacepvs, surfaceindex);
913 surface = surfaces + surfaceindex;
914 if (!BoxesOverlap(info->lightmins, info->lightmaxs, surface->mins, surface->maxs))
917 currentmaterialflags = R_GetCurrentTexture(surface->texture)->currentmaterialflags;
918 castshadow = !(currentmaterialflags & MATERIALFLAG_NOSHADOW);
919 insidebox = BoxInsideBox(surface->mins, surface->maxs, info->lightmins, info->lightmaxs);
920 for (triangleindex = 0, t = surface->num_firstshadowmeshtriangle, e = info->model->brush.shadowmesh->element3i + t * 3;triangleindex < surface->num_triangles;triangleindex++, t++, e += 3)
922 v[0] = info->model->brush.shadowmesh->vertex3f + e[0] * 3;
923 v[1] = info->model->brush.shadowmesh->vertex3f + e[1] * 3;
924 v[2] = info->model->brush.shadowmesh->vertex3f + e[2] * 3;
925 VectorCopy(v[0], v2[0]);
926 VectorCopy(v[1], v2[1]);
927 VectorCopy(v[2], v2[2]);
928 if (!insidebox && !TriangleOverlapsBox(v2[0], v2[1], v2[2], info->lightmins, info->lightmaxs))
930 if (svbspactive && !(SVBSP_AddPolygon(&r_svbsp, 3, v2[0], false, NULL, NULL, 0) & 2))
932 // we don't omit triangles from lighting even if they are
933 // backfacing, because when using shadowmapping they are often
934 // not fully occluded on the horizon of an edge
935 SETPVSBIT(info->outlighttrispvs, t);
939 if (currentmaterialflags & MATERIALFLAG_NOCULLFACE)
941 // if the material is double sided we
942 // can't cull by direction
943 SETPVSBIT(info->outshadowtrispvs, t);
945 else if (frontsidecasting)
947 // front side casting occludes backfaces,
948 // so they are completely useless as both
949 // casters and lit polygons
950 if (PointInfrontOfTriangle(info->relativelightorigin, v2[0], v2[1], v2[2]))
951 SETPVSBIT(info->outshadowtrispvs, t);
955 // back side casting does not occlude
956 // anything so we can't cull lit polygons
957 if (!PointInfrontOfTriangle(info->relativelightorigin, v2[0], v2[1], v2[2]))
958 SETPVSBIT(info->outshadowtrispvs, t);
963 info->outsurfacelist[info->outnumsurfaces++] = surfaceindex;
970 static void R_Q1BSP_RecursiveGetLightInfo_BIH(r_q1bsp_getlightinfo_t *info, const bih_t *bih)
979 int currentmaterialflags;
985 int nodestack[GETLIGHTINFO_MAXNODESTACK];
986 int nodestackpos = 0;
987 // note: because the BSP leafs are not in the BIH tree, the _BSP function
988 // must be called to mark leafs visible for entity culling...
989 // we start at the root node
990 nodestack[nodestackpos++] = bih->rootnode;
991 // we'll be done when the stack is empty
994 // pop one off the stack to process
995 nodenum = nodestack[--nodestackpos];
997 node = bih->nodes + nodenum;
998 if (node->type == BIH_UNORDERED)
1000 for (nodeleafindex = 0;nodeleafindex < BIH_MAXUNORDEREDCHILDREN && node->children[nodeleafindex] >= 0;nodeleafindex++)
1002 leaf = bih->leafs + node->children[nodeleafindex];
1003 if (leaf->type != BIH_RENDERTRIANGLE)
1006 if (!BoxesOverlap(info->lightmins, info->lightmaxs, leaf->mins, leaf->maxs))
1010 if (!r_shadow_compilingrtlight && R_CullBoxCustomPlanes(leaf->mins, leaf->maxs, info->numfrustumplanes, info->frustumplanes))
1013 surfaceindex = leaf->surfaceindex;
1014 surface = info->model->data_surfaces + surfaceindex;
1015 currentmaterialflags = R_GetCurrentTexture(surface->texture)->currentmaterialflags;
1016 castshadow = !(currentmaterialflags & MATERIALFLAG_NOSHADOW);
1017 t = leaf->itemindex + surface->num_firstshadowmeshtriangle - surface->num_firsttriangle;
1018 e = info->model->brush.shadowmesh->element3i + t * 3;
1019 v[0] = info->model->brush.shadowmesh->vertex3f + e[0] * 3;
1020 v[1] = info->model->brush.shadowmesh->vertex3f + e[1] * 3;
1021 v[2] = info->model->brush.shadowmesh->vertex3f + e[2] * 3;
1022 VectorCopy(v[0], v2[0]);
1023 VectorCopy(v[1], v2[1]);
1024 VectorCopy(v[2], v2[2]);
1025 if (info->svbsp_insertoccluder)
1028 SVBSP_AddPolygon(&r_svbsp, 3, v2[0], true, NULL, NULL, 0);
1031 if (info->svbsp_active && !(SVBSP_AddPolygon(&r_svbsp, 3, v2[0], false, NULL, NULL, 0) & 2))
1033 // we don't occlude triangles from lighting even
1034 // if they are backfacing, because when using
1035 // shadowmapping they are often not fully occluded
1036 // on the horizon of an edge
1037 SETPVSBIT(info->outlighttrispvs, t);
1040 if (currentmaterialflags & MATERIALFLAG_NOCULLFACE)
1042 // if the material is double sided we
1043 // can't cull by direction
1044 SETPVSBIT(info->outshadowtrispvs, t);
1046 else if (r_shadow_frontsidecasting.integer)
1048 // front side casting occludes backfaces,
1049 // so they are completely useless as both
1050 // casters and lit polygons
1051 if (PointInfrontOfTriangle(info->relativelightorigin, v2[0], v2[1], v2[2]))
1052 SETPVSBIT(info->outshadowtrispvs, t);
1056 // back side casting does not occlude
1057 // anything so we can't cull lit polygons
1058 if (!PointInfrontOfTriangle(info->relativelightorigin, v2[0], v2[1], v2[2]))
1059 SETPVSBIT(info->outshadowtrispvs, t);
1062 if (!CHECKPVSBIT(info->outsurfacepvs, surfaceindex))
1064 SETPVSBIT(info->outsurfacepvs, surfaceindex);
1065 info->outsurfacelist[info->outnumsurfaces++] = surfaceindex;
1071 axis = node->type - BIH_SPLITX;
1073 if (!BoxesOverlap(info->lightmins, info->lightmaxs, node->mins, node->maxs))
1077 if (!r_shadow_compilingrtlight && R_CullBoxCustomPlanes(node->mins, node->maxs, rtlight->cached_numfrustumplanes, rtlight->cached_frustumplanes))
1080 if (info->lightmins[axis] <= node->backmax)
1082 if (info->lightmaxs[axis] >= node->frontmin && nodestackpos < GETLIGHTINFO_MAXNODESTACK)
1083 nodestack[nodestackpos++] = node->front;
1084 nodestack[nodestackpos++] = node->back;
1087 else if (info->lightmaxs[axis] >= node->frontmin)
1089 nodestack[nodestackpos++] = node->front;
1093 continue; // light falls between children, nothing here
1098 static void R_Q1BSP_CallRecursiveGetLightInfo(r_q1bsp_getlightinfo_t *info, qboolean use_svbsp)
1100 extern cvar_t r_shadow_usebihculling;
1104 VectorCopy(info->relativelightorigin, origin);
1105 r_svbsp.maxnodes = max(r_svbsp.maxnodes, 1<<12);
1106 r_svbsp.nodes = (svbsp_node_t*) R_FrameData_Alloc(r_svbsp.maxnodes * sizeof(svbsp_node_t));
1107 info->svbsp_active = true;
1108 info->svbsp_insertoccluder = true;
1111 SVBSP_Init(&r_svbsp, origin, r_svbsp.maxnodes, r_svbsp.nodes);
1112 R_Q1BSP_RecursiveGetLightInfo_BSP(info, false);
1113 // if that failed, retry with more nodes
1114 if (r_svbsp.ranoutofnodes)
1116 // an upper limit is imposed
1117 if (r_svbsp.maxnodes >= 2<<22)
1119 r_svbsp.maxnodes *= 2;
1120 r_svbsp.nodes = (svbsp_node_t*) R_FrameData_Alloc(r_svbsp.maxnodes * sizeof(svbsp_node_t));
1121 //Mem_Free(r_svbsp.nodes);
1122 //r_svbsp.nodes = (svbsp_node_t*) Mem_Alloc(tempmempool, r_svbsp.maxnodes * sizeof(svbsp_node_t));
1127 // now clear the visibility arrays because we need to redo it
1128 info->outnumleafs = 0;
1129 info->outnumsurfaces = 0;
1130 memset(info->outleafpvs, 0, (info->model->brush.num_leafs + 7) >> 3);
1131 memset(info->outsurfacepvs, 0, (info->model->nummodelsurfaces + 7) >> 3);
1132 if (info->model->brush.shadowmesh)
1133 memset(info->outshadowtrispvs, 0, (info->model->brush.shadowmesh->numtriangles + 7) >> 3);
1135 memset(info->outshadowtrispvs, 0, (info->model->surfmesh.num_triangles + 7) >> 3);
1136 memset(info->outlighttrispvs, 0, (info->model->surfmesh.num_triangles + 7) >> 3);
1139 info->svbsp_active = false;
1141 // we HAVE to mark the leaf the light is in as lit, because portals are
1142 // irrelevant to a leaf that the light source is inside of
1143 // (and they are all facing away, too)
1145 mnode_t *node = info->model->brush.data_nodes;
1148 node = node->children[(node->plane->type < 3 ? info->relativelightorigin[node->plane->type] : DotProduct(info->relativelightorigin,node->plane->normal)) < node->plane->dist];
1149 leaf = (mleaf_t *)node;
1150 info->outmins[0] = min(info->outmins[0], leaf->mins[0]);
1151 info->outmins[1] = min(info->outmins[1], leaf->mins[1]);
1152 info->outmins[2] = min(info->outmins[2], leaf->mins[2]);
1153 info->outmaxs[0] = max(info->outmaxs[0], leaf->maxs[0]);
1154 info->outmaxs[1] = max(info->outmaxs[1], leaf->maxs[1]);
1155 info->outmaxs[2] = max(info->outmaxs[2], leaf->maxs[2]);
1156 if (info->outleafpvs)
1158 int leafindex = leaf - info->model->brush.data_leafs;
1159 if (!CHECKPVSBIT(info->outleafpvs, leafindex))
1161 SETPVSBIT(info->outleafpvs, leafindex);
1162 info->outleaflist[info->outnumleafs++] = leafindex;
1167 info->svbsp_insertoccluder = false;
1168 // use BIH culling on single leaf maps (generally this only happens if running a model as a map), otherwise use BSP culling to make use of vis data
1169 if (r_shadow_usebihculling.integer > 0 && (r_shadow_usebihculling.integer == 2 || info->model->brush.num_leafs == 1) && info->model->render_bih.leafs != NULL)
1171 R_Q1BSP_RecursiveGetLightInfo_BSP(info, true);
1172 R_Q1BSP_RecursiveGetLightInfo_BIH(info, &info->model->render_bih);
1175 R_Q1BSP_RecursiveGetLightInfo_BSP(info, false);
1176 // we're using temporary framedata memory, so this pointer will be invalid soon, clear it
1177 r_svbsp.nodes = NULL;
1178 if (developer_extra.integer && use_svbsp)
1180 Con_DPrintf("GetLightInfo: svbsp built with %i nodes, polygon stats:\n", r_svbsp.numnodes);
1181 Con_DPrintf("occluders: %i accepted, %i rejected, %i fragments accepted, %i fragments rejected.\n", r_svbsp.stat_occluders_accepted, r_svbsp.stat_occluders_rejected, r_svbsp.stat_occluders_fragments_accepted, r_svbsp.stat_occluders_fragments_rejected);
1182 Con_DPrintf("queries : %i accepted, %i rejected, %i fragments accepted, %i fragments rejected.\n", r_svbsp.stat_queries_accepted, r_svbsp.stat_queries_rejected, r_svbsp.stat_queries_fragments_accepted, r_svbsp.stat_queries_fragments_rejected);
1186 static msurface_t *r_q1bsp_getlightinfo_surfaces;
1188 int R_Q1BSP_GetLightInfo_comparefunc(const void *ap, const void *bp)
1192 const msurface_t *as = r_q1bsp_getlightinfo_surfaces + a;
1193 const msurface_t *bs = r_q1bsp_getlightinfo_surfaces + b;
1194 if (as->texture < bs->texture)
1196 if (as->texture > bs->texture)
1201 extern cvar_t r_shadow_sortsurfaces;
1203 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, unsigned char *outshadowtrispvs, unsigned char *outlighttrispvs, unsigned char *visitingleafpvs, int numfrustumplanes, const mplane_t *frustumplanes)
1205 r_q1bsp_getlightinfo_t info;
1206 VectorCopy(relativelightorigin, info.relativelightorigin);
1207 info.lightradius = lightradius;
1208 info.lightmins[0] = info.relativelightorigin[0] - info.lightradius;
1209 info.lightmins[1] = info.relativelightorigin[1] - info.lightradius;
1210 info.lightmins[2] = info.relativelightorigin[2] - info.lightradius;
1211 info.lightmaxs[0] = info.relativelightorigin[0] + info.lightradius;
1212 info.lightmaxs[1] = info.relativelightorigin[1] + info.lightradius;
1213 info.lightmaxs[2] = info.relativelightorigin[2] + info.lightradius;
1214 if (ent->model == NULL)
1216 VectorCopy(info.lightmins, outmins);
1217 VectorCopy(info.lightmaxs, outmaxs);
1218 *outnumleafspointer = 0;
1219 *outnumsurfacespointer = 0;
1222 info.model = ent->model;
1223 info.outleaflist = outleaflist;
1224 info.outleafpvs = outleafpvs;
1225 info.outnumleafs = 0;
1226 info.visitingleafpvs = visitingleafpvs;
1227 info.outsurfacelist = outsurfacelist;
1228 info.outsurfacepvs = outsurfacepvs;
1229 info.outshadowtrispvs = outshadowtrispvs;
1230 info.outlighttrispvs = outlighttrispvs;
1231 info.outnumsurfaces = 0;
1232 info.numfrustumplanes = numfrustumplanes;
1233 info.frustumplanes = frustumplanes;
1234 VectorCopy(info.relativelightorigin, info.outmins);
1235 VectorCopy(info.relativelightorigin, info.outmaxs);
1236 memset(visitingleafpvs, 0, (info.model->brush.num_leafs + 7) >> 3);
1237 memset(outleafpvs, 0, (info.model->brush.num_leafs + 7) >> 3);
1238 memset(outsurfacepvs, 0, (info.model->nummodelsurfaces + 7) >> 3);
1239 if (info.model->brush.shadowmesh)
1240 memset(outshadowtrispvs, 0, (info.model->brush.shadowmesh->numtriangles + 7) >> 3);
1242 memset(outshadowtrispvs, 0, (info.model->surfmesh.num_triangles + 7) >> 3);
1243 memset(outlighttrispvs, 0, (info.model->surfmesh.num_triangles + 7) >> 3);
1244 if (info.model->brush.GetPVS && r_shadow_frontsidecasting.integer)
1245 info.pvs = info.model->brush.GetPVS(info.model, info.relativelightorigin);
1248 RSurf_ActiveWorldEntity();
1250 if (r_shadow_frontsidecasting.integer && r_shadow_compilingrtlight && r_shadow_realtime_world_compileportalculling.integer && info.model->brush.data_portals)
1252 // use portal recursion for exact light volume culling, and exact surface checking
1253 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, info.outshadowtrispvs, info.outlighttrispvs, info.visitingleafpvs);
1255 else if (r_shadow_frontsidecasting.integer && r_shadow_realtime_dlight_portalculling.integer && info.model->brush.data_portals)
1257 // use portal recursion for exact light volume culling, but not the expensive exact surface checking
1258 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, info.outshadowtrispvs, info.outlighttrispvs, info.visitingleafpvs);
1262 // recurse the bsp tree, checking leafs and surfaces for visibility
1263 // optionally using svbsp for exact culling of compiled lights
1264 // (or if the user enables dlight svbsp culling, which is mostly for
1265 // debugging not actual use)
1266 R_Q1BSP_CallRecursiveGetLightInfo(&info, (r_shadow_compilingrtlight ? r_shadow_realtime_world_compilesvbsp.integer : r_shadow_realtime_dlight_svbspculling.integer) != 0);
1269 rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
1271 // limit combined leaf box to light boundaries
1272 outmins[0] = max(info.outmins[0] - 1, info.lightmins[0]);
1273 outmins[1] = max(info.outmins[1] - 1, info.lightmins[1]);
1274 outmins[2] = max(info.outmins[2] - 1, info.lightmins[2]);
1275 outmaxs[0] = min(info.outmaxs[0] + 1, info.lightmaxs[0]);
1276 outmaxs[1] = min(info.outmaxs[1] + 1, info.lightmaxs[1]);
1277 outmaxs[2] = min(info.outmaxs[2] + 1, info.lightmaxs[2]);
1279 *outnumleafspointer = info.outnumleafs;
1280 *outnumsurfacespointer = info.outnumsurfaces;
1282 // now sort surfaces by texture for faster rendering
1283 r_q1bsp_getlightinfo_surfaces = info.model->data_surfaces;
1284 if (r_shadow_sortsurfaces.integer)
1285 qsort(info.outsurfacelist, info.outnumsurfaces, sizeof(*info.outsurfacelist), R_Q1BSP_GetLightInfo_comparefunc);
1288 void R_Q1BSP_CompileShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativelightdirection, float lightradius, int numsurfaces, const int *surfacelist)
1290 dp_model_t *model = ent->model;
1291 msurface_t *surface;
1292 int surfacelistindex;
1293 float projectdistance = relativelightdirection ? lightradius : lightradius + model->radius*2 + r_shadow_projectdistance.value;
1294 // if triangle neighbors are disabled, shadowvolumes are disabled
1295 if (!model->brush.shadowmesh->neighbor3i)
1297 r_shadow_compilingrtlight->static_meshchain_shadow_zfail = Mod_ShadowMesh_Begin(r_main_mempool, 32768, 32768, NULL, NULL, NULL, false, false, true);
1298 R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
1299 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
1301 surface = model->data_surfaces + surfacelist[surfacelistindex];
1302 if (surface->texture->basematerialflags & MATERIALFLAG_NOSHADOW)
1304 R_Shadow_MarkVolumeFromBox(surface->num_firstshadowmeshtriangle, surface->num_triangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, relativelightorigin, relativelightdirection, r_shadow_compilingrtlight->cullmins, r_shadow_compilingrtlight->cullmaxs, surface->mins, surface->maxs);
1306 R_Shadow_VolumeFromList(model->brush.shadowmesh->numverts, model->brush.shadowmesh->numtriangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, model->brush.shadowmesh->neighbor3i, relativelightorigin, relativelightdirection, projectdistance, numshadowmark, shadowmarklist, ent->mins, ent->maxs);
1307 r_shadow_compilingrtlight->static_meshchain_shadow_zfail = Mod_ShadowMesh_Finish(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow_zfail, false, false, true);
1310 extern cvar_t r_polygonoffset_submodel_factor;
1311 extern cvar_t r_polygonoffset_submodel_offset;
1312 void R_Q1BSP_DrawShadowVolume(entity_render_t *ent, const vec3_t relativelightorigin, const vec3_t relativelightdirection, float lightradius, int modelnumsurfaces, const int *modelsurfacelist, const vec3_t lightmins, const vec3_t lightmaxs)
1314 dp_model_t *model = ent->model;
1315 const msurface_t *surface;
1316 int modelsurfacelistindex;
1317 float projectdistance = relativelightdirection ? lightradius : lightradius + model->radius*2 + r_shadow_projectdistance.value;
1318 // check the box in modelspace, it was already checked in worldspace
1319 if (!BoxesOverlap(model->normalmins, model->normalmaxs, lightmins, lightmaxs))
1321 R_FrameData_SetMark();
1322 if (ent->model->brush.submodel)
1323 GL_PolygonOffset(r_refdef.shadowpolygonfactor + r_polygonoffset_submodel_factor.value, r_refdef.shadowpolygonoffset + r_polygonoffset_submodel_offset.value);
1324 if (model->brush.shadowmesh)
1326 // if triangle neighbors are disabled, shadowvolumes are disabled
1327 if (!model->brush.shadowmesh->neighbor3i)
1329 R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
1330 for (modelsurfacelistindex = 0;modelsurfacelistindex < modelnumsurfaces;modelsurfacelistindex++)
1332 surface = model->data_surfaces + modelsurfacelist[modelsurfacelistindex];
1333 if (R_GetCurrentTexture(surface->texture)->currentmaterialflags & MATERIALFLAG_NOSHADOW)
1335 R_Shadow_MarkVolumeFromBox(surface->num_firstshadowmeshtriangle, surface->num_triangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, relativelightorigin, relativelightdirection, lightmins, lightmaxs, surface->mins, surface->maxs);
1337 R_Shadow_VolumeFromList(model->brush.shadowmesh->numverts, model->brush.shadowmesh->numtriangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, model->brush.shadowmesh->neighbor3i, relativelightorigin, relativelightdirection, projectdistance, numshadowmark, shadowmarklist, ent->mins, ent->maxs);
1341 // if triangle neighbors are disabled, shadowvolumes are disabled
1342 if (!model->surfmesh.data_neighbor3i)
1344 projectdistance = lightradius + model->radius*2;
1345 R_Shadow_PrepareShadowMark(model->surfmesh.num_triangles);
1346 // identify lit faces within the bounding box
1347 for (modelsurfacelistindex = 0;modelsurfacelistindex < modelnumsurfaces;modelsurfacelistindex++)
1349 surface = model->data_surfaces + modelsurfacelist[modelsurfacelistindex];
1350 rsurface.texture = R_GetCurrentTexture(surface->texture);
1351 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_NOSHADOW)
1353 R_Shadow_MarkVolumeFromBox(surface->num_firsttriangle, surface->num_triangles, rsurface.modelvertex3f, rsurface.modelelement3i, relativelightorigin, relativelightdirection, lightmins, lightmaxs, surface->mins, surface->maxs);
1355 R_Shadow_VolumeFromList(model->surfmesh.num_vertices, model->surfmesh.num_triangles, rsurface.modelvertex3f, model->surfmesh.data_element3i, model->surfmesh.data_neighbor3i, relativelightorigin, relativelightdirection, projectdistance, numshadowmark, shadowmarklist, ent->mins, ent->maxs);
1357 if (ent->model->brush.submodel)
1358 GL_PolygonOffset(r_refdef.shadowpolygonfactor, r_refdef.shadowpolygonoffset);
1359 R_FrameData_ReturnToMark();
1362 void R_Q1BSP_CompileShadowMap(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativelightdirection, float lightradius, int numsurfaces, const int *surfacelist)
1364 dp_model_t *model = ent->model;
1365 msurface_t *surface;
1366 int surfacelistindex;
1367 int sidetotals[6] = { 0, 0, 0, 0, 0, 0 }, sidemasks = 0;
1369 if (!model->brush.shadowmesh)
1371 r_shadow_compilingrtlight->static_meshchain_shadow_shadowmap = Mod_ShadowMesh_Begin(r_main_mempool, 32768, 32768, NULL, NULL, NULL, false, false, true);
1372 R_Shadow_PrepareShadowSides(model->brush.shadowmesh->numtriangles);
1373 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
1375 surface = model->data_surfaces + surfacelist[surfacelistindex];
1376 sidemasks |= R_Shadow_ChooseSidesFromBox(surface->num_firstshadowmeshtriangle, surface->num_triangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, &r_shadow_compilingrtlight->matrix_worldtolight, relativelightorigin, relativelightdirection, r_shadow_compilingrtlight->cullmins, r_shadow_compilingrtlight->cullmaxs, surface->mins, surface->maxs, surface->texture->basematerialflags & MATERIALFLAG_NOSHADOW ? NULL : sidetotals);
1378 R_Shadow_ShadowMapFromList(model->brush.shadowmesh->numverts, model->brush.shadowmesh->numtriangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, numshadowsides, sidetotals, shadowsides, shadowsideslist);
1379 r_shadow_compilingrtlight->static_meshchain_shadow_shadowmap = Mod_ShadowMesh_Finish(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow_shadowmap, false, false, true);
1380 r_shadow_compilingrtlight->static_shadowmap_receivers &= sidemasks;
1383 r_shadow_compilingrtlight->static_shadowmap_casters &= ~(1 << i);
1386 #define RSURF_MAX_BATCHSURFACES 8192
1388 static const msurface_t *batchsurfacelist[RSURF_MAX_BATCHSURFACES];
1390 void R_Q1BSP_DrawShadowMap(int side, entity_render_t *ent, const vec3_t relativelightorigin, const vec3_t relativelightdirection, float lightradius, int modelnumsurfaces, const int *modelsurfacelist, const unsigned char *surfacesides, const vec3_t lightmins, const vec3_t lightmaxs)
1392 dp_model_t *model = ent->model;
1393 const msurface_t *surface;
1394 int modelsurfacelistindex, batchnumsurfaces;
1395 // check the box in modelspace, it was already checked in worldspace
1396 if (!BoxesOverlap(model->normalmins, model->normalmaxs, lightmins, lightmaxs))
1398 R_FrameData_SetMark();
1399 // identify lit faces within the bounding box
1400 for (modelsurfacelistindex = 0;modelsurfacelistindex < modelnumsurfaces;modelsurfacelistindex++)
1402 surface = model->data_surfaces + modelsurfacelist[modelsurfacelistindex];
1403 if (surfacesides && !(surfacesides[modelsurfacelistindex] && (1 << side)))
1405 rsurface.texture = R_GetCurrentTexture(surface->texture);
1406 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_NOSHADOW)
1408 if (!BoxesOverlap(lightmins, lightmaxs, surface->mins, surface->maxs))
1410 r_refdef.stats.lights_dynamicshadowtriangles += surface->num_triangles;
1411 r_refdef.stats.lights_shadowtriangles += surface->num_triangles;
1412 batchsurfacelist[0] = surface;
1413 batchnumsurfaces = 1;
1414 while(++modelsurfacelistindex < modelnumsurfaces && batchnumsurfaces < RSURF_MAX_BATCHSURFACES)
1416 surface = model->data_surfaces + modelsurfacelist[modelsurfacelistindex];
1417 if (surfacesides && !(surfacesides[modelsurfacelistindex] & (1 << side)))
1419 if (surface->texture != batchsurfacelist[0]->texture)
1421 if (!BoxesOverlap(lightmins, lightmaxs, surface->mins, surface->maxs))
1423 r_refdef.stats.lights_dynamicshadowtriangles += surface->num_triangles;
1424 r_refdef.stats.lights_shadowtriangles += surface->num_triangles;
1425 batchsurfacelist[batchnumsurfaces++] = surface;
1427 --modelsurfacelistindex;
1428 GL_CullFace(rsurface.texture->currentmaterialflags & MATERIALFLAG_NOCULLFACE ? GL_NONE : r_refdef.view.cullface_back);
1429 RSurf_PrepareVerticesForBatch(BATCHNEED_ARRAY_VERTEX, batchnumsurfaces, batchsurfacelist);
1430 if (rsurface.batchvertex3fbuffer)
1431 R_Mesh_PrepareVertices_Vertex3f(rsurface.batchnumvertices, rsurface.batchvertex3f, rsurface.batchvertex3fbuffer);
1433 R_Mesh_PrepareVertices_Vertex3f(rsurface.batchnumvertices, rsurface.batchvertex3f, rsurface.batchvertex3f_vertexbuffer);
1436 R_FrameData_ReturnToMark();
1439 #define BATCHSIZE 1024
1441 static void R_Q1BSP_DrawLight_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
1443 int i, j, endsurface;
1445 const msurface_t *surface;
1446 R_FrameData_SetMark();
1447 // note: in practice this never actually receives batches
1448 R_Shadow_RenderMode_Begin();
1449 R_Shadow_RenderMode_ActiveLight(rtlight);
1450 R_Shadow_RenderMode_Lighting(false, true, false);
1451 R_Shadow_SetupEntityLight(ent);
1452 for (i = 0;i < numsurfaces;i = j)
1455 surface = rsurface.modelsurfaces + surfacelist[i];
1456 t = surface->texture;
1457 rsurface.texture = R_GetCurrentTexture(t);
1458 endsurface = min(j + BATCHSIZE, numsurfaces);
1459 for (j = i;j < endsurface;j++)
1461 surface = rsurface.modelsurfaces + surfacelist[j];
1462 if (t != surface->texture)
1464 R_Shadow_RenderLighting(1, &surface);
1467 R_Shadow_RenderMode_End();
1468 R_FrameData_ReturnToMark();
1471 extern qboolean r_shadow_usingdeferredprepass;
1472 void R_Q1BSP_DrawLight(entity_render_t *ent, int numsurfaces, const int *surfacelist, const unsigned char *lighttrispvs)
1474 dp_model_t *model = ent->model;
1475 const msurface_t *surface;
1476 int i, k, kend, l, endsurface, batchnumsurfaces, texturenumsurfaces;
1477 const msurface_t **texturesurfacelist;
1480 R_FrameData_SetMark();
1481 // this is a double loop because non-visible surface skipping has to be
1482 // fast, and even if this is not the world model (and hence no visibility
1483 // checking) the input surface list and batch buffer are different formats
1484 // so some processing is necessary. (luckily models have few surfaces)
1485 for (i = 0;i < numsurfaces;)
1487 batchnumsurfaces = 0;
1488 endsurface = min(i + RSURF_MAX_BATCHSURFACES, numsurfaces);
1489 if (ent == r_refdef.scene.worldentity)
1491 for (;i < endsurface;i++)
1492 if (r_refdef.viewcache.world_surfacevisible[surfacelist[i]])
1493 batchsurfacelist[batchnumsurfaces++] = model->data_surfaces + surfacelist[i];
1497 for (;i < endsurface;i++)
1498 batchsurfacelist[batchnumsurfaces++] = model->data_surfaces + surfacelist[i];
1500 if (!batchnumsurfaces)
1502 for (k = 0;k < batchnumsurfaces;k = kend)
1504 surface = batchsurfacelist[k];
1505 tex = surface->texture;
1506 rsurface.texture = R_GetCurrentTexture(tex);
1507 // gather surfaces into a batch range
1508 for (kend = k;kend < batchnumsurfaces && tex == batchsurfacelist[kend]->texture;kend++)
1510 // now figure out what to do with this particular range of surfaces
1511 // VorteX: added MATERIALFLAG_NORTLIGHT
1512 if ((rsurface.texture->currentmaterialflags & (MATERIALFLAG_WALL | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_NORTLIGHT)) != MATERIALFLAG_WALL)
1514 if (r_fb.water.renderingscene && (rsurface.texture->currentmaterialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA)))
1516 if (rsurface.texture->currentmaterialflags & MATERIALFLAGMASK_DEPTHSORTED)
1518 vec3_t tempcenter, center;
1519 for (l = k;l < kend;l++)
1521 surface = batchsurfacelist[l];
1522 tempcenter[0] = (surface->mins[0] + surface->maxs[0]) * 0.5f;
1523 tempcenter[1] = (surface->mins[1] + surface->maxs[1]) * 0.5f;
1524 tempcenter[2] = (surface->mins[2] + surface->maxs[2]) * 0.5f;
1525 Matrix4x4_Transform(&rsurface.matrix, tempcenter, center);
1526 R_MeshQueue_AddTransparent(rsurface.texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST ? r_refdef.view.origin : center, R_Q1BSP_DrawLight_TransparentCallback, ent, surface - rsurface.modelsurfaces, rsurface.rtlight);
1530 if (r_shadow_usingdeferredprepass)
1532 texturenumsurfaces = kend - k;
1533 texturesurfacelist = batchsurfacelist + k;
1534 R_Shadow_RenderLighting(texturenumsurfaces, texturesurfacelist);
1537 R_FrameData_ReturnToMark();
1541 void R_ReplaceWorldTexture (void)
1546 const char *r, *newt;
1547 skinframe_t *skinframe;
1548 if (!r_refdef.scene.worldmodel)
1550 Con_Printf("There is no worldmodel\n");
1553 m = r_refdef.scene.worldmodel;
1557 Con_Print("r_replacemaptexture <texname> <newtexname> - replaces texture\n");
1558 Con_Print("r_replacemaptexture <texname> - switch back to default texture\n");
1561 if(!cl.islocalgame || !cl.worldmodel)
1563 Con_Print("This command works only in singleplayer\n");
1570 for(i=0,t=m->data_textures;i<m->num_textures;i++,t++)
1572 if(/*t->width && !strcasecmp(t->name, r)*/ matchpattern( t->name, r, true ) )
1574 if ((skinframe = R_SkinFrame_LoadExternal(newt, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PICMIP, true)))
1576 // t->skinframes[0] = skinframe;
1577 t->currentskinframe = skinframe;
1578 t->currentskinframe = skinframe;
1579 Con_Printf("%s replaced with %s\n", r, newt);
1583 Con_Printf("%s was not found\n", newt);
1591 void R_ListWorldTextures (void)
1596 if (!r_refdef.scene.worldmodel)
1598 Con_Printf("There is no worldmodel\n");
1601 m = r_refdef.scene.worldmodel;
1603 Con_Print("Worldmodel textures :\n");
1604 for(i=0,t=m->data_textures;i<m->num_textures;i++,t++)
1605 if (t->numskinframes)
1606 Con_Printf("%s\n", t->name);
1610 static void gl_surf_start(void)
1614 static void gl_surf_shutdown(void)
1618 static void gl_surf_newmap(void)
1623 void GL_Surf_Init(void)
1626 Cvar_RegisterVariable(&r_ambient);
1627 Cvar_RegisterVariable(&r_lockpvs);
1628 Cvar_RegisterVariable(&r_lockvisibility);
1629 Cvar_RegisterVariable(&r_useportalculling);
1630 Cvar_RegisterVariable(&r_usesurfaceculling);
1631 Cvar_RegisterVariable(&r_q3bsp_renderskydepth);
1633 Cmd_AddCommand ("r_replacemaptexture", R_ReplaceWorldTexture, "override a map texture for testing purposes");
1634 Cmd_AddCommand ("r_listmaptextures", R_ListWorldTextures, "list all textures used by the current map");
1636 //R_RegisterModule("GL_Surf", gl_surf_start, gl_surf_shutdown, gl_surf_newmap);