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"};
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 dp_model_t *model = ent->model;
49 unsigned char *templight;
51 smax = (surface->lightmapinfo->extents[0]>>4)+1;
52 tmax = (surface->lightmapinfo->extents[1]>>4)+1;
56 r_refdef.stats.lightmapupdatepixels += size;
57 r_refdef.stats.lightmapupdates++;
59 if (cl.buildlightmapmemorysize < size*sizeof(int[3]))
61 cl.buildlightmapmemorysize = size*sizeof(int[3]);
62 if (cl.buildlightmapmemory)
63 Mem_Free(cl.buildlightmapmemory);
64 cl.buildlightmapmemory = (unsigned char *) Mem_Alloc(cls.levelmempool, cl.buildlightmapmemorysize);
67 // these both point at the same buffer, templight is only used for final
68 // processing and can replace the intblocklights data as it goes
69 intblocklights = (int *)cl.buildlightmapmemory;
70 templight = (unsigned char *)cl.buildlightmapmemory;
72 // update cached lighting info
73 model->brushq1.lightmapupdateflags[surface - model->data_surfaces] = false;
75 lightmap = surface->lightmapinfo->samples;
77 // set to full bright if no light data
79 if (!model->brushq1.lightdata)
81 for (i = 0;i < size3;i++)
87 memset(bl, 0, size3*sizeof(*bl));
89 // add all the lightmaps
91 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++, lightmap += size3)
92 for (scale = r_refdef.scene.lightstylevalue[surface->lightmapinfo->styles[maps]], i = 0;i < size3;i++)
93 bl[i] += lightmap[i] * scale;
96 stain = surface->lightmapinfo->stainsamples;
99 // the >> 16 shift adjusts down 8 bits to account for the stainmap
100 // scaling, and remaps the 0-65536 (2x overbright) to 0-256, it will
101 // be doubled during rendering to achieve 2x overbright
102 // (0 = 0.0, 128 = 1.0, 256 = 2.0)
105 for (i = 0;i < size;i++, bl += 3, stain += 3, out += 4)
107 l = (bl[0] * stain[0]) >> 16;out[2] = min(l, 255);
108 l = (bl[1] * stain[1]) >> 16;out[1] = min(l, 255);
109 l = (bl[2] * stain[2]) >> 16;out[0] = min(l, 255);
115 for (i = 0;i < size;i++, bl += 3, out += 4)
117 l = bl[0] >> 8;out[2] = min(l, 255);
118 l = bl[1] >> 8;out[1] = min(l, 255);
119 l = bl[2] >> 8;out[0] = min(l, 255);
124 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
125 Image_MakesRGBColorsFromLinear_Lightmap(templight, templight, size);
126 R_UpdateTexture(surface->lightmaptexture, templight, surface->lightmapinfo->lightmaporigin[0], surface->lightmapinfo->lightmaporigin[1], 0, smax, tmax, 1);
128 // update the surface's deluxemap if it has one
129 if (surface->deluxemaptexture != r_texture_blanknormalmap)
132 unsigned char *normalmap = surface->lightmapinfo->nmapsamples;
133 lightmap = surface->lightmapinfo->samples;
134 // clear to no normalmap
136 memset(bl, 0, size3*sizeof(*bl));
137 // add all the normalmaps
138 if (lightmap && normalmap)
140 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++, lightmap += size3, normalmap += size3)
142 for (scale = r_refdef.scene.lightstylevalue[surface->lightmapinfo->styles[maps]], i = 0;i < size;i++)
144 // add the normalmap with weighting proportional to the style's lightmap intensity
145 l = (int)(VectorLength(lightmap + i*3) * scale);
146 bl[i*3+0] += ((int)normalmap[i*3+0] - 128) * l;
147 bl[i*3+1] += ((int)normalmap[i*3+1] - 128) * l;
148 bl[i*3+2] += ((int)normalmap[i*3+2] - 128) * l;
154 // we simply renormalize the weighted normals to get a valid deluxemap
155 for (i = 0;i < size;i++, bl += 3, out += 4)
159 l = (int)(n[0] * 128 + 128);out[2] = bound(0, l, 255);
160 l = (int)(n[1] * 128 + 128);out[1] = bound(0, l, 255);
161 l = (int)(n[2] * 128 + 128);out[0] = bound(0, l, 255);
164 R_UpdateTexture(surface->deluxemaptexture, templight, surface->lightmapinfo->lightmaporigin[0], surface->lightmapinfo->lightmaporigin[1], 0, smax, tmax, 1);
168 static void R_StainNode (mnode_t *node, dp_model_t *model, const vec3_t origin, float radius, const float fcolor[8])
170 float ndist, a, ratio, maxdist, maxdist2, maxdist3, invradius, sdtable[256], td, dist2;
171 msurface_t *surface, *endsurface;
172 int i, s, t, smax, tmax, smax3, impacts, impactt, stained;
176 maxdist = radius * radius;
177 invradius = 1.0f / radius;
182 ndist = PlaneDiff(origin, node->plane);
185 node = node->children[0];
190 node = node->children[1];
194 dist2 = ndist * ndist;
195 maxdist3 = maxdist - dist2;
197 if (node->plane->type < 3)
199 VectorCopy(origin, impact);
200 impact[node->plane->type] -= ndist;
204 impact[0] = origin[0] - node->plane->normal[0] * ndist;
205 impact[1] = origin[1] - node->plane->normal[1] * ndist;
206 impact[2] = origin[2] - node->plane->normal[2] * ndist;
209 for (surface = model->data_surfaces + node->firstsurface, endsurface = surface + node->numsurfaces;surface < endsurface;surface++)
211 if (surface->lightmapinfo->stainsamples)
213 smax = (surface->lightmapinfo->extents[0] >> 4) + 1;
214 tmax = (surface->lightmapinfo->extents[1] >> 4) + 1;
216 impacts = (int)(DotProduct (impact, surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3] - surface->lightmapinfo->texturemins[0]);
217 impactt = (int)(DotProduct (impact, surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3] - surface->lightmapinfo->texturemins[1]);
219 s = bound(0, impacts, smax * 16) - impacts;
220 t = bound(0, impactt, tmax * 16) - impactt;
221 i = (int)(s * s + t * t + dist2);
222 if ((i > maxdist) || (smax > (int)(sizeof(sdtable)/sizeof(sdtable[0])))) // smax overflow fix from Andreas Dehmel
225 // reduce calculations
226 for (s = 0, i = impacts; s < smax; s++, i -= 16)
227 sdtable[s] = i * i + dist2;
229 bl = surface->lightmapinfo->stainsamples;
234 for (t = 0;t < tmax;t++, i -= 16)
237 // make sure some part of it is visible on this line
240 maxdist2 = maxdist - td;
241 for (s = 0;s < smax;s++)
243 if (sdtable[s] < maxdist2)
245 ratio = lhrandom(0.0f, 1.0f);
246 a = (fcolor[3] + ratio * fcolor[7]) * (1.0f - sqrt(sdtable[s] + td) * invradius);
247 if (a >= (1.0f / 64.0f))
251 bl[0] = (unsigned char) ((float) bl[0] + a * ((fcolor[0] + ratio * fcolor[4]) - (float) bl[0]));
252 bl[1] = (unsigned char) ((float) bl[1] + a * ((fcolor[1] + ratio * fcolor[5]) - (float) bl[1]));
253 bl[2] = (unsigned char) ((float) bl[2] + a * ((fcolor[2] + ratio * fcolor[6]) - (float) bl[2]));
263 // force lightmap upload
265 model->brushq1.lightmapupdateflags[surface - model->data_surfaces] = true;
269 if (node->children[0]->plane)
271 if (node->children[1]->plane)
273 R_StainNode(node->children[0], model, origin, radius, fcolor);
274 node = node->children[1];
279 node = node->children[0];
283 else if (node->children[1]->plane)
285 node = node->children[1];
290 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)
294 entity_render_t *ent;
297 if (r_refdef.scene.worldmodel == NULL || !r_refdef.scene.worldmodel->brush.data_nodes || !r_refdef.scene.worldmodel->brushq1.lightdata)
302 fcolor[3] = ca1 * (1.0f / 64.0f);
303 fcolor[4] = cr2 - cr1;
304 fcolor[5] = cg2 - cg1;
305 fcolor[6] = cb2 - cb1;
306 fcolor[7] = (ca2 - ca1) * (1.0f / 64.0f);
308 R_StainNode(r_refdef.scene.worldmodel->brush.data_nodes + r_refdef.scene.worldmodel->brushq1.hulls[0].firstclipnode, r_refdef.scene.worldmodel, origin, radius, fcolor);
310 // look for embedded bmodels
311 for (n = 0;n < cl.num_brushmodel_entities;n++)
313 ent = &cl.entities[cl.brushmodel_entities[n]].render;
315 if (model && model->name[0] == '*')
317 if (model->brush.data_nodes)
319 Matrix4x4_Transform(&ent->inversematrix, origin, org);
320 R_StainNode(model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, model, org, radius, fcolor);
328 =============================================================
332 =============================================================
335 static void R_DrawPortal_Callback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
337 // due to the hacky nature of this function's parameters, this is never
338 // called with a batch, so numsurfaces is always 1, and the surfacelist
339 // contains only a leaf number for coloring purposes
340 const mportal_t *portal = (mportal_t *)ent;
344 float vertex3f[POLYGONELEMENTS_MAXPOINTS*3];
346 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
349 GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
351 GL_CullFace(GL_NONE);
352 R_EntityMatrix(&identitymatrix);
354 numpoints = min(portal->numpoints, POLYGONELEMENTS_MAXPOINTS);
356 // R_Mesh_ResetTextureState();
358 isvis = (portal->here->clusterindex >= 0 && portal->past->clusterindex >= 0 && portal->here->clusterindex != portal->past->clusterindex);
360 i = surfacelist[0] >> 1;
361 GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f) * r_refdef.view.colorscale,
362 ((i & 0x0038) >> 3) * (1.0f / 7.0f) * r_refdef.view.colorscale,
363 ((i & 0x01C0) >> 6) * (1.0f / 7.0f) * r_refdef.view.colorscale,
364 isvis ? 0.125f : 0.03125f);
365 for (i = 0, v = vertex3f;i < numpoints;i++, v += 3)
366 VectorCopy(portal->points[i].position, v);
367 R_Mesh_PrepareVertices_Generic_Arrays(numpoints, vertex3f, NULL, NULL);
368 R_SetupShader_Generic_NoTexture(false, false);
369 R_Mesh_Draw(0, numpoints, 0, numpoints - 2, polygonelement3i, NULL, 0, polygonelement3s, NULL, 0);
372 // LordHavoc: this is just a nice debugging tool, very slow
373 void R_DrawPortals(void)
378 dp_model_t *model = r_refdef.scene.worldmodel;
381 for (leafnum = 0;leafnum < r_refdef.scene.worldmodel->brush.num_leafs;leafnum++)
383 if (r_refdef.viewcache.world_leafvisible[leafnum])
385 //for (portalnum = 0, portal = model->brush.data_portals;portalnum < model->brush.num_portals;portalnum++, portal++)
386 for (portal = r_refdef.scene.worldmodel->brush.data_leafs[leafnum].portals;portal;portal = portal->next)
388 if (portal->numpoints <= POLYGONELEMENTS_MAXPOINTS)
389 if (!R_CullBox(portal->mins, portal->maxs))
392 for (i = 0;i < portal->numpoints;i++)
393 VectorAdd(center, portal->points[i].position, center);
394 f = ixtable[portal->numpoints];
395 VectorScale(center, f, center);
396 R_MeshQueue_AddTransparent(MESHQUEUE_SORT_DISTANCE, center, R_DrawPortal_Callback, (entity_render_t *)portal, leafnum, rsurface.rtlight);
403 static void R_View_WorldVisibility_CullSurfaces(void)
406 int surfaceindexstart;
408 unsigned char *surfacevisible;
409 msurface_t *surfaces;
410 dp_model_t *model = r_refdef.scene.worldmodel;
413 if (r_trippy.integer)
415 if (r_usesurfaceculling.integer < 1)
417 surfaceindexstart = model->firstmodelsurface;
418 surfaceindexend = surfaceindexstart + model->nummodelsurfaces;
419 surfaces = model->data_surfaces;
420 surfacevisible = r_refdef.viewcache.world_surfacevisible;
421 for (surfaceindex = surfaceindexstart;surfaceindex < surfaceindexend;surfaceindex++)
422 if (surfacevisible[surfaceindex] && R_CullBox(surfaces[surfaceindex].mins, surfaces[surfaceindex].maxs))
423 surfacevisible[surfaceindex] = 0;
426 void R_View_WorldVisibility(qboolean forcenovis)
431 dp_model_t *model = r_refdef.scene.worldmodel;
436 if (r_refdef.view.usecustompvs)
438 // clear the visible surface and leaf flags arrays
439 memset(r_refdef.viewcache.world_surfacevisible, 0, model->num_surfaces);
440 memset(r_refdef.viewcache.world_leafvisible, 0, model->brush.num_leafs);
441 r_refdef.viewcache.world_novis = false;
443 // simply cull each marked leaf to the frustum (view pyramid)
444 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
446 // if leaf is in current pvs and on the screen, mark its surfaces
447 if (CHECKPVSBIT(r_refdef.viewcache.world_pvsbits, leaf->clusterindex) && !R_CullBox(leaf->mins, leaf->maxs))
449 r_refdef.stats.world_leafs++;
450 r_refdef.viewcache.world_leafvisible[j] = true;
451 if (leaf->numleafsurfaces)
452 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
453 r_refdef.viewcache.world_surfacevisible[*mark] = true;
456 R_View_WorldVisibility_CullSurfaces();
460 // if possible find the leaf the view origin is in
461 viewleaf = model->brush.PointInLeaf ? model->brush.PointInLeaf(model, r_refdef.view.origin) : NULL;
462 // if possible fetch the visible cluster bits
463 if (!r_lockpvs.integer && model->brush.FatPVS)
464 model->brush.FatPVS(model, r_refdef.view.origin, 2, r_refdef.viewcache.world_pvsbits, (r_refdef.viewcache.world_numclusters+7)>>3, false);
466 if (!r_lockvisibility.integer)
468 // clear the visible surface and leaf flags arrays
469 memset(r_refdef.viewcache.world_surfacevisible, 0, model->num_surfaces);
470 memset(r_refdef.viewcache.world_leafvisible, 0, model->brush.num_leafs);
472 r_refdef.viewcache.world_novis = false;
474 // if floating around in the void (no pvs data available, and no
475 // portals available), simply use all on-screen leafs.
476 if (!viewleaf || viewleaf->clusterindex < 0 || forcenovis || r_trippy.integer)
478 // no visibility method: (used when floating around in the void)
479 // simply cull each leaf to the frustum (view pyramid)
480 // similar to quake's RecursiveWorldNode but without cache misses
481 r_refdef.viewcache.world_novis = true;
482 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
484 if (leaf->clusterindex < 0)
486 // if leaf is in current pvs and on the screen, mark its surfaces
487 if (!R_CullBox(leaf->mins, leaf->maxs))
489 r_refdef.stats.world_leafs++;
490 r_refdef.viewcache.world_leafvisible[j] = true;
491 if (leaf->numleafsurfaces)
492 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
493 r_refdef.viewcache.world_surfacevisible[*mark] = true;
497 // just check if each leaf in the PVS is on screen
498 // (unless portal culling is enabled)
499 else if (!model->brush.data_portals || r_useportalculling.integer < 1 || (r_useportalculling.integer < 2 && !r_novis.integer))
502 // simply check if each leaf is in the Potentially Visible Set,
503 // and cull to frustum (view pyramid)
504 // similar to quake's RecursiveWorldNode but without cache misses
505 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
507 if (leaf->clusterindex < 0)
509 // if leaf is in current pvs and on the screen, mark its surfaces
510 if (CHECKPVSBIT(r_refdef.viewcache.world_pvsbits, leaf->clusterindex) && !R_CullBox(leaf->mins, leaf->maxs))
512 r_refdef.stats.world_leafs++;
513 r_refdef.viewcache.world_leafvisible[j] = true;
514 if (leaf->numleafsurfaces)
515 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
516 r_refdef.viewcache.world_surfacevisible[*mark] = true;
520 // if desired use a recursive portal flow, culling each portal to
521 // frustum and checking if the leaf the portal leads to is in the pvs
526 mleaf_t *leafstack[8192];
527 // simple-frustum portal method:
528 // follows portals leading outward from viewleaf, does not venture
529 // offscreen or into leafs that are not visible, faster than
530 // Quake's RecursiveWorldNode and vastly better in unvised maps,
531 // often culls some surfaces that pvs alone would miss
532 // (such as a room in pvs that is hidden behind a wall, but the
533 // passage leading to the room is off-screen)
534 leafstack[0] = viewleaf;
538 leaf = leafstack[--leafstackpos];
539 if (r_refdef.viewcache.world_leafvisible[leaf - model->brush.data_leafs])
541 if (leaf->clusterindex < 0)
543 r_refdef.stats.world_leafs++;
544 r_refdef.viewcache.world_leafvisible[leaf - model->brush.data_leafs] = true;
545 // mark any surfaces bounding this leaf
546 if (leaf->numleafsurfaces)
547 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
548 r_refdef.viewcache.world_surfacevisible[*mark] = true;
549 // follow portals into other leafs
551 // if viewer is behind portal (portal faces outward into the scene)
552 // and the portal polygon's bounding box is on the screen
553 // and the leaf has not been visited yet
554 // and the leaf is visible in the pvs
555 // (the first two checks won't cause as many cache misses as the leaf checks)
556 for (p = leaf->portals;p;p = p->next)
558 r_refdef.stats.world_portals++;
559 if (DotProduct(r_refdef.view.origin, p->plane.normal) < (p->plane.dist + 1)
560 && !r_refdef.viewcache.world_leafvisible[p->past - model->brush.data_leafs]
561 && CHECKPVSBIT(r_refdef.viewcache.world_pvsbits, p->past->clusterindex)
562 && !R_CullBox(p->mins, p->maxs)
563 && leafstackpos < (int)(sizeof(leafstack) / sizeof(leafstack[0])))
564 leafstack[leafstackpos++] = p->past;
570 R_View_WorldVisibility_CullSurfaces();
573 void R_Q1BSP_DrawSky(entity_render_t *ent)
575 if (ent->model == NULL)
577 if (ent == r_refdef.scene.worldentity)
578 R_DrawWorldSurfaces(true, true, false, false, false);
580 R_DrawModelSurfaces(ent, true, true, false, false, false);
583 void R_Q1BSP_DrawAddWaterPlanes(entity_render_t *ent)
585 int i, j, n, flagsmask;
586 dp_model_t *model = ent->model;
587 msurface_t *surfaces;
591 if (ent == r_refdef.scene.worldentity)
592 RSurf_ActiveWorldEntity();
594 RSurf_ActiveModelEntity(ent, true, false, false);
596 surfaces = model->data_surfaces;
597 flagsmask = MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA;
599 // add visible surfaces to draw list
600 if (ent == r_refdef.scene.worldentity)
602 for (i = 0;i < model->nummodelsurfaces;i++)
604 j = model->sortedmodelsurfaces[i];
605 if (r_refdef.viewcache.world_surfacevisible[j])
606 if (surfaces[j].texture->basematerialflags & flagsmask)
607 R_Water_AddWaterPlane(surfaces + j, 0);
612 if(ent->entitynumber >= MAX_EDICTS) // && CL_VM_TransformView(ent->entitynumber - MAX_EDICTS, NULL, NULL, NULL))
613 n = ent->entitynumber;
616 for (i = 0;i < model->nummodelsurfaces;i++)
618 j = model->sortedmodelsurfaces[i];
619 if (surfaces[j].texture->basematerialflags & flagsmask)
620 R_Water_AddWaterPlane(surfaces + j, n);
623 rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
626 void R_Q1BSP_Draw(entity_render_t *ent)
628 dp_model_t *model = ent->model;
631 if (ent == r_refdef.scene.worldentity)
632 R_DrawWorldSurfaces(false, true, false, false, false);
634 R_DrawModelSurfaces(ent, false, true, false, false, false);
637 void R_Q1BSP_DrawDepth(entity_render_t *ent)
639 dp_model_t *model = ent->model;
642 GL_ColorMask(0,0,0,0);
645 GL_BlendFunc(GL_ONE, GL_ZERO);
647 // R_Mesh_ResetTextureState();
648 R_SetupShader_DepthOrShadow(false, false);
649 if (ent == r_refdef.scene.worldentity)
650 R_DrawWorldSurfaces(false, false, true, false, false);
652 R_DrawModelSurfaces(ent, false, false, true, false, false);
653 GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
656 void R_Q1BSP_DrawDebug(entity_render_t *ent)
658 if (ent->model == NULL)
660 if (ent == r_refdef.scene.worldentity)
661 R_DrawWorldSurfaces(false, false, false, true, false);
663 R_DrawModelSurfaces(ent, false, false, false, true, false);
666 void R_Q1BSP_DrawPrepass(entity_render_t *ent)
668 dp_model_t *model = ent->model;
671 if (ent == r_refdef.scene.worldentity)
672 R_DrawWorldSurfaces(false, true, false, false, true);
674 R_DrawModelSurfaces(ent, false, true, false, false, true);
677 typedef struct r_q1bsp_getlightinfo_s
680 vec3_t relativelightorigin;
683 unsigned char *outleafpvs;
685 unsigned char *visitingleafpvs;
687 unsigned char *outsurfacepvs;
688 unsigned char *tempsurfacepvs;
689 unsigned char *outshadowtrispvs;
690 unsigned char *outlighttrispvs;
696 const unsigned char *pvs;
697 qboolean svbsp_active;
698 qboolean svbsp_insertoccluder;
699 int numfrustumplanes;
700 const mplane_t *frustumplanes;
702 r_q1bsp_getlightinfo_t;
704 #define GETLIGHTINFO_MAXNODESTACK 4096
706 static void R_Q1BSP_RecursiveGetLightInfo_BSP(r_q1bsp_getlightinfo_t *info, qboolean skipsurfaces)
709 mnode_t *nodestack[GETLIGHTINFO_MAXNODESTACK];
710 int nodestackpos = 0;
717 const msurface_t *surface;
718 const msurface_t *surfaces = info->model->data_surfaces;
720 int leafsurfaceindex;
722 int triangleindex, t;
723 int currentmaterialflags;
729 qboolean frontsidecasting = r_shadow_frontsidecasting.integer != 0;
730 qboolean svbspactive = info->svbsp_active;
731 qboolean svbspinsertoccluder = info->svbsp_insertoccluder;
732 const int *leafsurfaceindices;
736 static float points[128][3];
737 // push the root node onto our nodestack
738 nodestack[nodestackpos++] = info->model->brush.data_nodes;
739 // we'll be done when the nodestack is empty
742 // get a node from the stack to process
743 node = nodestack[--nodestackpos];
744 // is it a node or a leaf?
750 if (!BoxesOverlap(info->lightmins, info->lightmaxs, node->mins, node->maxs))
754 if (!r_shadow_compilingrtlight && R_CullBoxCustomPlanes(node->mins, node->maxs, rtlight->cached_numfrustumplanes, rtlight->cached_frustumplanes))
757 // axial planes can be processed much more quickly
761 if (info->lightmins[plane->type] > plane->dist)
762 nodestack[nodestackpos++] = node->children[0];
763 else if (info->lightmaxs[plane->type] < plane->dist)
764 nodestack[nodestackpos++] = node->children[1];
767 // recurse front side first because the svbsp building prefers it
768 if (info->relativelightorigin[plane->type] >= plane->dist)
770 if (nodestackpos < GETLIGHTINFO_MAXNODESTACK)
771 nodestack[nodestackpos++] = node->children[0];
772 nodestack[nodestackpos++] = node->children[1];
776 if (nodestackpos < GETLIGHTINFO_MAXNODESTACK)
777 nodestack[nodestackpos++] = node->children[1];
778 nodestack[nodestackpos++] = node->children[0];
785 sides = BoxOnPlaneSide(info->lightmins, info->lightmaxs, plane);
789 continue; // ERROR: NAN bounding box!
791 nodestack[nodestackpos++] = node->children[0];
794 nodestack[nodestackpos++] = node->children[1];
797 // recurse front side first because the svbsp building prefers it
798 if (PlaneDist(info->relativelightorigin, plane) >= 0)
800 if (nodestackpos < GETLIGHTINFO_MAXNODESTACK)
801 nodestack[nodestackpos++] = node->children[0];
802 nodestack[nodestackpos++] = node->children[1];
806 if (nodestackpos < GETLIGHTINFO_MAXNODESTACK)
807 nodestack[nodestackpos++] = node->children[1];
808 nodestack[nodestackpos++] = node->children[0];
817 leaf = (mleaf_t *)node;
819 if (r_shadow_frontsidecasting.integer && info->pvs != NULL && !CHECKPVSBIT(info->pvs, leaf->clusterindex))
823 if (!BoxesOverlap(info->lightmins, info->lightmaxs, leaf->mins, leaf->maxs))
827 if (!r_shadow_compilingrtlight && R_CullBoxCustomPlanes(leaf->mins, leaf->maxs, info->numfrustumplanes, info->frustumplanes))
833 // we can occlusion test the leaf by checking if all of its portals
834 // are occluded (unless the light is in this leaf - but that was
835 // already handled by the caller)
836 for (portal = leaf->portals;portal;portal = portal->next)
838 for (i = 0;i < portal->numpoints;i++)
839 VectorCopy(portal->points[i].position, points[i]);
840 if (SVBSP_AddPolygon(&r_svbsp, portal->numpoints, points[0], false, NULL, NULL, 0) & 2)
843 if (leaf->portals && portal == NULL)
844 continue; // no portals of this leaf visible
847 // add this leaf to the reduced light bounds
848 info->outmins[0] = min(info->outmins[0], leaf->mins[0]);
849 info->outmins[1] = min(info->outmins[1], leaf->mins[1]);
850 info->outmins[2] = min(info->outmins[2], leaf->mins[2]);
851 info->outmaxs[0] = max(info->outmaxs[0], leaf->maxs[0]);
852 info->outmaxs[1] = max(info->outmaxs[1], leaf->maxs[1]);
853 info->outmaxs[2] = max(info->outmaxs[2], leaf->maxs[2]);
855 // mark this leaf as being visible to the light
856 if (info->outleafpvs)
858 int leafindex = leaf - info->model->brush.data_leafs;
859 if (!CHECKPVSBIT(info->outleafpvs, leafindex))
861 SETPVSBIT(info->outleafpvs, leafindex);
862 info->outleaflist[info->outnumleafs++] = leafindex;
866 // when using BIH, we skip the surfaces here
870 // iterate the surfaces linked by this leaf and check their triangles
871 leafsurfaceindices = leaf->firstleafsurface;
872 numleafsurfaces = leaf->numleafsurfaces;
873 if (svbspinsertoccluder)
875 for (leafsurfaceindex = 0;leafsurfaceindex < numleafsurfaces;leafsurfaceindex++)
877 surfaceindex = leafsurfaceindices[leafsurfaceindex];
878 if (CHECKPVSBIT(info->outsurfacepvs, surfaceindex))
880 SETPVSBIT(info->outsurfacepvs, surfaceindex);
881 surface = surfaces + surfaceindex;
882 if (!BoxesOverlap(info->lightmins, info->lightmaxs, surface->mins, surface->maxs))
884 currentmaterialflags = R_GetCurrentTexture(surface->texture)->currentmaterialflags;
885 castshadow = !(currentmaterialflags & MATERIALFLAG_NOSHADOW);
888 insidebox = BoxInsideBox(surface->mins, surface->maxs, info->lightmins, info->lightmaxs);
889 for (triangleindex = 0, t = surface->num_firstshadowmeshtriangle, e = info->model->brush.shadowmesh->element3i + t * 3;triangleindex < surface->num_triangles;triangleindex++, t++, e += 3)
891 v[0] = info->model->brush.shadowmesh->vertex3f + e[0] * 3;
892 v[1] = info->model->brush.shadowmesh->vertex3f + e[1] * 3;
893 v[2] = info->model->brush.shadowmesh->vertex3f + e[2] * 3;
894 VectorCopy(v[0], v2[0]);
895 VectorCopy(v[1], v2[1]);
896 VectorCopy(v[2], v2[2]);
897 if (insidebox || TriangleOverlapsBox(v2[0], v2[1], v2[2], info->lightmins, info->lightmaxs))
898 SVBSP_AddPolygon(&r_svbsp, 3, v2[0], true, NULL, NULL, 0);
904 for (leafsurfaceindex = 0;leafsurfaceindex < numleafsurfaces;leafsurfaceindex++)
906 surfaceindex = leafsurfaceindices[leafsurfaceindex];
907 if (CHECKPVSBIT(info->outsurfacepvs, surfaceindex))
909 SETPVSBIT(info->outsurfacepvs, surfaceindex);
910 surface = surfaces + surfaceindex;
911 if (!BoxesOverlap(info->lightmins, info->lightmaxs, surface->mins, surface->maxs))
914 currentmaterialflags = R_GetCurrentTexture(surface->texture)->currentmaterialflags;
915 castshadow = !(currentmaterialflags & MATERIALFLAG_NOSHADOW);
916 insidebox = BoxInsideBox(surface->mins, surface->maxs, info->lightmins, info->lightmaxs);
917 for (triangleindex = 0, t = surface->num_firstshadowmeshtriangle, e = info->model->brush.shadowmesh->element3i + t * 3;triangleindex < surface->num_triangles;triangleindex++, t++, e += 3)
919 v[0] = info->model->brush.shadowmesh->vertex3f + e[0] * 3;
920 v[1] = info->model->brush.shadowmesh->vertex3f + e[1] * 3;
921 v[2] = info->model->brush.shadowmesh->vertex3f + e[2] * 3;
922 VectorCopy(v[0], v2[0]);
923 VectorCopy(v[1], v2[1]);
924 VectorCopy(v[2], v2[2]);
925 if (!insidebox && !TriangleOverlapsBox(v2[0], v2[1], v2[2], info->lightmins, info->lightmaxs))
927 if (svbspactive && !(SVBSP_AddPolygon(&r_svbsp, 3, v2[0], false, NULL, NULL, 0) & 2))
929 // we don't omit triangles from lighting even if they are
930 // backfacing, because when using shadowmapping they are often
931 // not fully occluded on the horizon of an edge
932 SETPVSBIT(info->outlighttrispvs, t);
936 if (currentmaterialflags & MATERIALFLAG_NOCULLFACE)
938 // if the material is double sided we
939 // can't cull by direction
940 SETPVSBIT(info->outshadowtrispvs, t);
942 else if (frontsidecasting)
944 // front side casting occludes backfaces,
945 // so they are completely useless as both
946 // casters and lit polygons
947 if (PointInfrontOfTriangle(info->relativelightorigin, v2[0], v2[1], v2[2]))
948 SETPVSBIT(info->outshadowtrispvs, t);
952 // back side casting does not occlude
953 // anything so we can't cull lit polygons
954 if (!PointInfrontOfTriangle(info->relativelightorigin, v2[0], v2[1], v2[2]))
955 SETPVSBIT(info->outshadowtrispvs, t);
960 info->outsurfacelist[info->outnumsurfaces++] = surfaceindex;
967 static void R_Q1BSP_RecursiveGetLightInfo_BIH(r_q1bsp_getlightinfo_t *info, const bih_t *bih)
976 int currentmaterialflags;
982 int nodestack[GETLIGHTINFO_MAXNODESTACK];
983 int nodestackpos = 0;
984 // note: because the BSP leafs are not in the BIH tree, the _BSP function
985 // must be called to mark leafs visible for entity culling...
986 // we start at the root node
987 nodestack[nodestackpos++] = bih->rootnode;
988 // we'll be done when the stack is empty
991 // pop one off the stack to process
992 nodenum = nodestack[--nodestackpos];
994 node = bih->nodes + nodenum;
995 if (node->type == BIH_UNORDERED)
997 for (nodeleafindex = 0;nodeleafindex < BIH_MAXUNORDEREDCHILDREN && node->children[nodeleafindex] >= 0;nodeleafindex++)
999 leaf = bih->leafs + node->children[nodeleafindex];
1000 if (leaf->type != BIH_RENDERTRIANGLE)
1003 if (!BoxesOverlap(info->lightmins, info->lightmaxs, leaf->mins, leaf->maxs))
1007 if (!r_shadow_compilingrtlight && R_CullBoxCustomPlanes(leaf->mins, leaf->maxs, info->numfrustumplanes, info->frustumplanes))
1010 surfaceindex = leaf->surfaceindex;
1011 surface = info->model->data_surfaces + surfaceindex;
1012 currentmaterialflags = R_GetCurrentTexture(surface->texture)->currentmaterialflags;
1013 castshadow = !(currentmaterialflags & MATERIALFLAG_NOSHADOW);
1014 t = leaf->itemindex + surface->num_firstshadowmeshtriangle - surface->num_firsttriangle;
1015 e = info->model->brush.shadowmesh->element3i + t * 3;
1016 v[0] = info->model->brush.shadowmesh->vertex3f + e[0] * 3;
1017 v[1] = info->model->brush.shadowmesh->vertex3f + e[1] * 3;
1018 v[2] = info->model->brush.shadowmesh->vertex3f + e[2] * 3;
1019 VectorCopy(v[0], v2[0]);
1020 VectorCopy(v[1], v2[1]);
1021 VectorCopy(v[2], v2[2]);
1022 if (info->svbsp_insertoccluder)
1025 SVBSP_AddPolygon(&r_svbsp, 3, v2[0], true, NULL, NULL, 0);
1028 if (info->svbsp_active && !(SVBSP_AddPolygon(&r_svbsp, 3, v2[0], false, NULL, NULL, 0) & 2))
1030 // we don't occlude triangles from lighting even
1031 // if they are backfacing, because when using
1032 // shadowmapping they are often not fully occluded
1033 // on the horizon of an edge
1034 SETPVSBIT(info->outlighttrispvs, t);
1037 if (currentmaterialflags & MATERIALFLAG_NOCULLFACE)
1039 // if the material is double sided we
1040 // can't cull by direction
1041 SETPVSBIT(info->outshadowtrispvs, t);
1043 else if (r_shadow_frontsidecasting.integer)
1045 // front side casting occludes backfaces,
1046 // so they are completely useless as both
1047 // casters and lit polygons
1048 if (PointInfrontOfTriangle(info->relativelightorigin, v2[0], v2[1], v2[2]))
1049 SETPVSBIT(info->outshadowtrispvs, t);
1053 // back side casting does not occlude
1054 // anything so we can't cull lit polygons
1055 if (!PointInfrontOfTriangle(info->relativelightorigin, v2[0], v2[1], v2[2]))
1056 SETPVSBIT(info->outshadowtrispvs, t);
1059 if (!CHECKPVSBIT(info->outsurfacepvs, surfaceindex))
1061 SETPVSBIT(info->outsurfacepvs, surfaceindex);
1062 info->outsurfacelist[info->outnumsurfaces++] = surfaceindex;
1068 axis = node->type - BIH_SPLITX;
1070 if (!BoxesOverlap(info->lightmins, info->lightmaxs, node->mins, node->maxs))
1074 if (!r_shadow_compilingrtlight && R_CullBoxCustomPlanes(node->mins, node->maxs, rtlight->cached_numfrustumplanes, rtlight->cached_frustumplanes))
1077 if (info->lightmins[axis] <= node->backmax)
1079 if (info->lightmaxs[axis] >= node->frontmin && nodestackpos < GETLIGHTINFO_MAXNODESTACK)
1080 nodestack[nodestackpos++] = node->front;
1081 nodestack[nodestackpos++] = node->back;
1084 else if (info->lightmaxs[axis] >= node->frontmin)
1086 nodestack[nodestackpos++] = node->front;
1090 continue; // light falls between children, nothing here
1095 static void R_Q1BSP_CallRecursiveGetLightInfo(r_q1bsp_getlightinfo_t *info, qboolean use_svbsp)
1097 extern cvar_t r_shadow_usebihculling;
1101 VectorCopy(info->relativelightorigin, origin);
1102 r_svbsp.maxnodes = max(r_svbsp.maxnodes, 1<<12);
1103 r_svbsp.nodes = (svbsp_node_t*) R_FrameData_Alloc(r_svbsp.maxnodes * sizeof(svbsp_node_t));
1104 info->svbsp_active = true;
1105 info->svbsp_insertoccluder = true;
1108 SVBSP_Init(&r_svbsp, origin, r_svbsp.maxnodes, r_svbsp.nodes);
1109 R_Q1BSP_RecursiveGetLightInfo_BSP(info, false);
1110 // if that failed, retry with more nodes
1111 if (r_svbsp.ranoutofnodes)
1113 // an upper limit is imposed
1114 if (r_svbsp.maxnodes >= 2<<22)
1116 r_svbsp.maxnodes *= 2;
1117 r_svbsp.nodes = (svbsp_node_t*) R_FrameData_Alloc(r_svbsp.maxnodes * sizeof(svbsp_node_t));
1118 //Mem_Free(r_svbsp.nodes);
1119 //r_svbsp.nodes = (svbsp_node_t*) Mem_Alloc(tempmempool, r_svbsp.maxnodes * sizeof(svbsp_node_t));
1124 // now clear the visibility arrays because we need to redo it
1125 info->outnumleafs = 0;
1126 info->outnumsurfaces = 0;
1127 memset(info->outleafpvs, 0, (info->model->brush.num_leafs + 7) >> 3);
1128 memset(info->outsurfacepvs, 0, (info->model->nummodelsurfaces + 7) >> 3);
1129 if (info->model->brush.shadowmesh)
1130 memset(info->outshadowtrispvs, 0, (info->model->brush.shadowmesh->numtriangles + 7) >> 3);
1132 memset(info->outshadowtrispvs, 0, (info->model->surfmesh.num_triangles + 7) >> 3);
1133 memset(info->outlighttrispvs, 0, (info->model->surfmesh.num_triangles + 7) >> 3);
1136 info->svbsp_active = false;
1138 // we HAVE to mark the leaf the light is in as lit, because portals are
1139 // irrelevant to a leaf that the light source is inside of
1140 // (and they are all facing away, too)
1142 mnode_t *node = info->model->brush.data_nodes;
1145 node = node->children[(node->plane->type < 3 ? info->relativelightorigin[node->plane->type] : DotProduct(info->relativelightorigin,node->plane->normal)) < node->plane->dist];
1146 leaf = (mleaf_t *)node;
1147 info->outmins[0] = min(info->outmins[0], leaf->mins[0]);
1148 info->outmins[1] = min(info->outmins[1], leaf->mins[1]);
1149 info->outmins[2] = min(info->outmins[2], leaf->mins[2]);
1150 info->outmaxs[0] = max(info->outmaxs[0], leaf->maxs[0]);
1151 info->outmaxs[1] = max(info->outmaxs[1], leaf->maxs[1]);
1152 info->outmaxs[2] = max(info->outmaxs[2], leaf->maxs[2]);
1153 if (info->outleafpvs)
1155 int leafindex = leaf - info->model->brush.data_leafs;
1156 if (!CHECKPVSBIT(info->outleafpvs, leafindex))
1158 SETPVSBIT(info->outleafpvs, leafindex);
1159 info->outleaflist[info->outnumleafs++] = leafindex;
1164 info->svbsp_insertoccluder = false;
1165 // 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
1166 if (r_shadow_usebihculling.integer > 0 && (r_shadow_usebihculling.integer == 2 || info->model->brush.num_leafs == 1) && info->model->render_bih.leafs != NULL)
1168 R_Q1BSP_RecursiveGetLightInfo_BSP(info, true);
1169 R_Q1BSP_RecursiveGetLightInfo_BIH(info, &info->model->render_bih);
1172 R_Q1BSP_RecursiveGetLightInfo_BSP(info, false);
1173 // we're using temporary framedata memory, so this pointer will be invalid soon, clear it
1174 r_svbsp.nodes = NULL;
1175 if (developer_extra.integer && use_svbsp)
1177 Con_DPrintf("GetLightInfo: svbsp built with %i nodes, polygon stats:\n", r_svbsp.numnodes);
1178 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);
1179 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);
1183 static msurface_t *r_q1bsp_getlightinfo_surfaces;
1185 static int R_Q1BSP_GetLightInfo_comparefunc(const void *ap, const void *bp)
1189 const msurface_t *as = r_q1bsp_getlightinfo_surfaces + a;
1190 const msurface_t *bs = r_q1bsp_getlightinfo_surfaces + b;
1191 if (as->texture < bs->texture)
1193 if (as->texture > bs->texture)
1198 extern cvar_t r_shadow_sortsurfaces;
1200 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)
1202 r_q1bsp_getlightinfo_t info;
1203 VectorCopy(relativelightorigin, info.relativelightorigin);
1204 info.lightradius = lightradius;
1205 info.lightmins[0] = info.relativelightorigin[0] - info.lightradius;
1206 info.lightmins[1] = info.relativelightorigin[1] - info.lightradius;
1207 info.lightmins[2] = info.relativelightorigin[2] - info.lightradius;
1208 info.lightmaxs[0] = info.relativelightorigin[0] + info.lightradius;
1209 info.lightmaxs[1] = info.relativelightorigin[1] + info.lightradius;
1210 info.lightmaxs[2] = info.relativelightorigin[2] + info.lightradius;
1211 if (ent->model == NULL)
1213 VectorCopy(info.lightmins, outmins);
1214 VectorCopy(info.lightmaxs, outmaxs);
1215 *outnumleafspointer = 0;
1216 *outnumsurfacespointer = 0;
1219 info.model = ent->model;
1220 info.outleaflist = outleaflist;
1221 info.outleafpvs = outleafpvs;
1222 info.outnumleafs = 0;
1223 info.visitingleafpvs = visitingleafpvs;
1224 info.outsurfacelist = outsurfacelist;
1225 info.outsurfacepvs = outsurfacepvs;
1226 info.outshadowtrispvs = outshadowtrispvs;
1227 info.outlighttrispvs = outlighttrispvs;
1228 info.outnumsurfaces = 0;
1229 info.numfrustumplanes = numfrustumplanes;
1230 info.frustumplanes = frustumplanes;
1231 VectorCopy(info.relativelightorigin, info.outmins);
1232 VectorCopy(info.relativelightorigin, info.outmaxs);
1233 memset(visitingleafpvs, 0, (info.model->brush.num_leafs + 7) >> 3);
1234 memset(outleafpvs, 0, (info.model->brush.num_leafs + 7) >> 3);
1235 memset(outsurfacepvs, 0, (info.model->nummodelsurfaces + 7) >> 3);
1236 if (info.model->brush.shadowmesh)
1237 memset(outshadowtrispvs, 0, (info.model->brush.shadowmesh->numtriangles + 7) >> 3);
1239 memset(outshadowtrispvs, 0, (info.model->surfmesh.num_triangles + 7) >> 3);
1240 memset(outlighttrispvs, 0, (info.model->surfmesh.num_triangles + 7) >> 3);
1241 if (info.model->brush.GetPVS && r_shadow_frontsidecasting.integer)
1242 info.pvs = info.model->brush.GetPVS(info.model, info.relativelightorigin);
1245 RSurf_ActiveWorldEntity();
1247 if (r_shadow_frontsidecasting.integer && r_shadow_compilingrtlight && r_shadow_realtime_world_compileportalculling.integer && info.model->brush.data_portals)
1249 // use portal recursion for exact light volume culling, and exact surface checking
1250 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);
1252 else if (r_shadow_frontsidecasting.integer && r_shadow_realtime_dlight_portalculling.integer && info.model->brush.data_portals)
1254 // use portal recursion for exact light volume culling, but not the expensive exact surface checking
1255 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);
1259 // recurse the bsp tree, checking leafs and surfaces for visibility
1260 // optionally using svbsp for exact culling of compiled lights
1261 // (or if the user enables dlight svbsp culling, which is mostly for
1262 // debugging not actual use)
1263 R_Q1BSP_CallRecursiveGetLightInfo(&info, (r_shadow_compilingrtlight ? r_shadow_realtime_world_compilesvbsp.integer : r_shadow_realtime_dlight_svbspculling.integer) != 0);
1266 rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
1268 // limit combined leaf box to light boundaries
1269 outmins[0] = max(info.outmins[0] - 1, info.lightmins[0]);
1270 outmins[1] = max(info.outmins[1] - 1, info.lightmins[1]);
1271 outmins[2] = max(info.outmins[2] - 1, info.lightmins[2]);
1272 outmaxs[0] = min(info.outmaxs[0] + 1, info.lightmaxs[0]);
1273 outmaxs[1] = min(info.outmaxs[1] + 1, info.lightmaxs[1]);
1274 outmaxs[2] = min(info.outmaxs[2] + 1, info.lightmaxs[2]);
1276 *outnumleafspointer = info.outnumleafs;
1277 *outnumsurfacespointer = info.outnumsurfaces;
1279 // now sort surfaces by texture for faster rendering
1280 r_q1bsp_getlightinfo_surfaces = info.model->data_surfaces;
1281 if (r_shadow_sortsurfaces.integer)
1282 qsort(info.outsurfacelist, info.outnumsurfaces, sizeof(*info.outsurfacelist), R_Q1BSP_GetLightInfo_comparefunc);
1285 void R_Q1BSP_CompileShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativelightdirection, float lightradius, int numsurfaces, const int *surfacelist)
1287 dp_model_t *model = ent->model;
1288 msurface_t *surface;
1289 int surfacelistindex;
1290 float projectdistance = relativelightdirection ? lightradius : lightradius + model->radius*2 + r_shadow_projectdistance.value;
1291 // if triangle neighbors are disabled, shadowvolumes are disabled
1292 if (!model->brush.shadowmesh->neighbor3i)
1294 r_shadow_compilingrtlight->static_meshchain_shadow_zfail = Mod_ShadowMesh_Begin(r_main_mempool, 32768, 32768, NULL, NULL, NULL, false, false, true);
1295 R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
1296 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
1298 surface = model->data_surfaces + surfacelist[surfacelistindex];
1299 if (surface->texture->basematerialflags & MATERIALFLAG_NOSHADOW)
1301 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);
1303 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);
1304 r_shadow_compilingrtlight->static_meshchain_shadow_zfail = Mod_ShadowMesh_Finish(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow_zfail, false, false, true);
1307 extern cvar_t r_polygonoffset_submodel_factor;
1308 extern cvar_t r_polygonoffset_submodel_offset;
1309 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)
1311 dp_model_t *model = ent->model;
1312 const msurface_t *surface;
1313 int modelsurfacelistindex;
1314 float projectdistance = relativelightdirection ? lightradius : lightradius + model->radius*2 + r_shadow_projectdistance.value;
1315 // check the box in modelspace, it was already checked in worldspace
1316 if (!BoxesOverlap(model->normalmins, model->normalmaxs, lightmins, lightmaxs))
1318 R_FrameData_SetMark();
1319 if (ent->model->brush.submodel)
1320 GL_PolygonOffset(r_refdef.shadowpolygonfactor + r_polygonoffset_submodel_factor.value, r_refdef.shadowpolygonoffset + r_polygonoffset_submodel_offset.value);
1321 if (model->brush.shadowmesh)
1323 // if triangle neighbors are disabled, shadowvolumes are disabled
1324 if (!model->brush.shadowmesh->neighbor3i)
1326 R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
1327 for (modelsurfacelistindex = 0;modelsurfacelistindex < modelnumsurfaces;modelsurfacelistindex++)
1329 surface = model->data_surfaces + modelsurfacelist[modelsurfacelistindex];
1330 if (R_GetCurrentTexture(surface->texture)->currentmaterialflags & MATERIALFLAG_NOSHADOW)
1332 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);
1334 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);
1338 // if triangle neighbors are disabled, shadowvolumes are disabled
1339 if (!model->surfmesh.data_neighbor3i)
1341 projectdistance = lightradius + model->radius*2;
1342 R_Shadow_PrepareShadowMark(model->surfmesh.num_triangles);
1343 // identify lit faces within the bounding box
1344 for (modelsurfacelistindex = 0;modelsurfacelistindex < modelnumsurfaces;modelsurfacelistindex++)
1346 surface = model->data_surfaces + modelsurfacelist[modelsurfacelistindex];
1347 rsurface.texture = R_GetCurrentTexture(surface->texture);
1348 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_NOSHADOW)
1350 R_Shadow_MarkVolumeFromBox(surface->num_firsttriangle, surface->num_triangles, rsurface.modelvertex3f, rsurface.modelelement3i, relativelightorigin, relativelightdirection, lightmins, lightmaxs, surface->mins, surface->maxs);
1352 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);
1354 if (ent->model->brush.submodel)
1355 GL_PolygonOffset(r_refdef.shadowpolygonfactor, r_refdef.shadowpolygonoffset);
1356 R_FrameData_ReturnToMark();
1359 void R_Q1BSP_CompileShadowMap(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativelightdirection, float lightradius, int numsurfaces, const int *surfacelist)
1361 dp_model_t *model = ent->model;
1362 msurface_t *surface;
1363 int surfacelistindex;
1364 int sidetotals[6] = { 0, 0, 0, 0, 0, 0 }, sidemasks = 0;
1366 if (!model->brush.shadowmesh)
1368 r_shadow_compilingrtlight->static_meshchain_shadow_shadowmap = Mod_ShadowMesh_Begin(r_main_mempool, 32768, 32768, NULL, NULL, NULL, false, false, true);
1369 R_Shadow_PrepareShadowSides(model->brush.shadowmesh->numtriangles);
1370 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
1372 surface = model->data_surfaces + surfacelist[surfacelistindex];
1373 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);
1375 R_Shadow_ShadowMapFromList(model->brush.shadowmesh->numverts, model->brush.shadowmesh->numtriangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, numshadowsides, sidetotals, shadowsides, shadowsideslist);
1376 r_shadow_compilingrtlight->static_meshchain_shadow_shadowmap = Mod_ShadowMesh_Finish(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow_shadowmap, false, false, true);
1377 r_shadow_compilingrtlight->static_shadowmap_receivers &= sidemasks;
1380 r_shadow_compilingrtlight->static_shadowmap_casters &= ~(1 << i);
1383 #define RSURF_MAX_BATCHSURFACES 8192
1385 static const msurface_t *batchsurfacelist[RSURF_MAX_BATCHSURFACES];
1387 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)
1389 dp_model_t *model = ent->model;
1390 const msurface_t *surface;
1391 int modelsurfacelistindex, batchnumsurfaces;
1392 // check the box in modelspace, it was already checked in worldspace
1393 if (!BoxesOverlap(model->normalmins, model->normalmaxs, lightmins, lightmaxs))
1395 R_FrameData_SetMark();
1396 // identify lit faces within the bounding box
1397 for (modelsurfacelistindex = 0;modelsurfacelistindex < modelnumsurfaces;modelsurfacelistindex++)
1399 surface = model->data_surfaces + modelsurfacelist[modelsurfacelistindex];
1400 if (surfacesides && !(surfacesides[modelsurfacelistindex] && (1 << side)))
1402 rsurface.texture = R_GetCurrentTexture(surface->texture);
1403 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_NOSHADOW)
1405 if (!BoxesOverlap(lightmins, lightmaxs, surface->mins, surface->maxs))
1407 r_refdef.stats.lights_dynamicshadowtriangles += surface->num_triangles;
1408 r_refdef.stats.lights_shadowtriangles += surface->num_triangles;
1409 batchsurfacelist[0] = surface;
1410 batchnumsurfaces = 1;
1411 while(++modelsurfacelistindex < modelnumsurfaces && batchnumsurfaces < RSURF_MAX_BATCHSURFACES)
1413 surface = model->data_surfaces + modelsurfacelist[modelsurfacelistindex];
1414 if (surfacesides && !(surfacesides[modelsurfacelistindex] & (1 << side)))
1416 if (surface->texture != batchsurfacelist[0]->texture)
1418 if (!BoxesOverlap(lightmins, lightmaxs, surface->mins, surface->maxs))
1420 r_refdef.stats.lights_dynamicshadowtriangles += surface->num_triangles;
1421 r_refdef.stats.lights_shadowtriangles += surface->num_triangles;
1422 batchsurfacelist[batchnumsurfaces++] = surface;
1424 --modelsurfacelistindex;
1425 GL_CullFace(rsurface.texture->currentmaterialflags & MATERIALFLAG_NOCULLFACE ? GL_NONE : r_refdef.view.cullface_back);
1426 RSurf_PrepareVerticesForBatch(BATCHNEED_ARRAY_VERTEX, batchnumsurfaces, batchsurfacelist);
1427 if (rsurface.batchvertex3fbuffer)
1428 R_Mesh_PrepareVertices_Vertex3f(rsurface.batchnumvertices, rsurface.batchvertex3f, rsurface.batchvertex3fbuffer);
1430 R_Mesh_PrepareVertices_Vertex3f(rsurface.batchnumvertices, rsurface.batchvertex3f, rsurface.batchvertex3f_vertexbuffer);
1433 R_FrameData_ReturnToMark();
1436 #define BATCHSIZE 1024
1438 static void R_Q1BSP_DrawLight_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
1440 int i, j, endsurface;
1442 const msurface_t *surface;
1443 R_FrameData_SetMark();
1444 // note: in practice this never actually receives batches
1445 R_Shadow_RenderMode_Begin();
1446 R_Shadow_RenderMode_ActiveLight(rtlight);
1447 R_Shadow_RenderMode_Lighting(false, true, false);
1448 R_Shadow_SetupEntityLight(ent);
1449 for (i = 0;i < numsurfaces;i = j)
1452 surface = rsurface.modelsurfaces + surfacelist[i];
1453 t = surface->texture;
1454 rsurface.texture = R_GetCurrentTexture(t);
1455 endsurface = min(j + BATCHSIZE, numsurfaces);
1456 for (j = i;j < endsurface;j++)
1458 surface = rsurface.modelsurfaces + surfacelist[j];
1459 if (t != surface->texture)
1461 R_Shadow_RenderLighting(1, &surface);
1464 R_Shadow_RenderMode_End();
1465 R_FrameData_ReturnToMark();
1468 extern qboolean r_shadow_usingdeferredprepass;
1469 void R_Q1BSP_DrawLight(entity_render_t *ent, int numsurfaces, const int *surfacelist, const unsigned char *lighttrispvs)
1471 dp_model_t *model = ent->model;
1472 const msurface_t *surface;
1473 int i, k, kend, l, endsurface, batchnumsurfaces, texturenumsurfaces;
1474 const msurface_t **texturesurfacelist;
1477 R_FrameData_SetMark();
1478 // this is a double loop because non-visible surface skipping has to be
1479 // fast, and even if this is not the world model (and hence no visibility
1480 // checking) the input surface list and batch buffer are different formats
1481 // so some processing is necessary. (luckily models have few surfaces)
1482 for (i = 0;i < numsurfaces;)
1484 batchnumsurfaces = 0;
1485 endsurface = min(i + RSURF_MAX_BATCHSURFACES, numsurfaces);
1486 if (ent == r_refdef.scene.worldentity)
1488 for (;i < endsurface;i++)
1489 if (r_refdef.viewcache.world_surfacevisible[surfacelist[i]])
1490 batchsurfacelist[batchnumsurfaces++] = model->data_surfaces + surfacelist[i];
1494 for (;i < endsurface;i++)
1495 batchsurfacelist[batchnumsurfaces++] = model->data_surfaces + surfacelist[i];
1497 if (!batchnumsurfaces)
1499 for (k = 0;k < batchnumsurfaces;k = kend)
1501 surface = batchsurfacelist[k];
1502 tex = surface->texture;
1503 rsurface.texture = R_GetCurrentTexture(tex);
1504 // gather surfaces into a batch range
1505 for (kend = k;kend < batchnumsurfaces && tex == batchsurfacelist[kend]->texture;kend++)
1507 // now figure out what to do with this particular range of surfaces
1508 // VorteX: added MATERIALFLAG_NORTLIGHT
1509 if ((rsurface.texture->currentmaterialflags & (MATERIALFLAG_WALL | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_NORTLIGHT)) != MATERIALFLAG_WALL)
1511 if (r_fb.water.renderingscene && (rsurface.texture->currentmaterialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA)))
1513 if (rsurface.texture->currentmaterialflags & MATERIALFLAGMASK_DEPTHSORTED)
1515 vec3_t tempcenter, center;
1516 for (l = k;l < kend;l++)
1518 surface = batchsurfacelist[l];
1519 if (r_transparent_sortsurfacesbynearest.integer)
1521 tempcenter[0] = bound(surface->mins[0], rsurface.localvieworigin[0], surface->maxs[0]);
1522 tempcenter[1] = bound(surface->mins[1], rsurface.localvieworigin[1], surface->maxs[1]);
1523 tempcenter[2] = bound(surface->mins[2], rsurface.localvieworigin[2], surface->maxs[2]);
1527 tempcenter[0] = (surface->mins[0] + surface->maxs[0]) * 0.5f;
1528 tempcenter[1] = (surface->mins[1] + surface->maxs[1]) * 0.5f;
1529 tempcenter[2] = (surface->mins[2] + surface->maxs[2]) * 0.5f;
1531 Matrix4x4_Transform(&rsurface.matrix, tempcenter, center);
1532 if (ent->transparent_offset) // transparent offset
1534 center[0] += r_refdef.view.forward[0]*ent->transparent_offset;
1535 center[1] += r_refdef.view.forward[1]*ent->transparent_offset;
1536 center[2] += r_refdef.view.forward[2]*ent->transparent_offset;
1538 R_MeshQueue_AddTransparent((rsurface.entity->flags & RENDER_WORLDOBJECT) ? MESHQUEUE_SORT_SKY : ((rsurface.texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST) ? MESHQUEUE_SORT_HUD : MESHQUEUE_SORT_DISTANCE), center, R_Q1BSP_DrawLight_TransparentCallback, ent, surface - rsurface.modelsurfaces, rsurface.rtlight);
1542 if (r_shadow_usingdeferredprepass)
1544 texturenumsurfaces = kend - k;
1545 texturesurfacelist = batchsurfacelist + k;
1546 R_Shadow_RenderLighting(texturenumsurfaces, texturesurfacelist);
1549 R_FrameData_ReturnToMark();
1553 static void R_ReplaceWorldTexture (void)
1558 const char *r, *newt;
1559 skinframe_t *skinframe;
1560 if (!r_refdef.scene.worldmodel)
1562 Con_Printf("There is no worldmodel\n");
1565 m = r_refdef.scene.worldmodel;
1569 Con_Print("r_replacemaptexture <texname> <newtexname> - replaces texture\n");
1570 Con_Print("r_replacemaptexture <texname> - switch back to default texture\n");
1573 if(!cl.islocalgame || !cl.worldmodel)
1575 Con_Print("This command works only in singleplayer\n");
1582 for(i=0,t=m->data_textures;i<m->num_textures;i++,t++)
1584 if(/*t->width && !strcasecmp(t->name, r)*/ matchpattern( t->name, r, true ) )
1586 if ((skinframe = R_SkinFrame_LoadExternal(newt, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PICMIP, true)))
1588 // t->skinframes[0] = skinframe;
1589 t->currentskinframe = skinframe;
1590 Con_Printf("%s replaced with %s\n", r, newt);
1594 Con_Printf("%s was not found\n", newt);
1602 static void R_ListWorldTextures (void)
1607 if (!r_refdef.scene.worldmodel)
1609 Con_Printf("There is no worldmodel\n");
1612 m = r_refdef.scene.worldmodel;
1614 Con_Print("Worldmodel textures :\n");
1615 for(i=0,t=m->data_textures;i<m->num_textures;i++,t++)
1616 if (t->numskinframes)
1617 Con_Printf("%s\n", t->name);
1621 static void gl_surf_start(void)
1625 static void gl_surf_shutdown(void)
1629 static void gl_surf_newmap(void)
1634 void GL_Surf_Init(void)
1637 Cvar_RegisterVariable(&r_ambient);
1638 Cvar_RegisterVariable(&r_lockpvs);
1639 Cvar_RegisterVariable(&r_lockvisibility);
1640 Cvar_RegisterVariable(&r_useportalculling);
1641 Cvar_RegisterVariable(&r_usesurfaceculling);
1642 Cvar_RegisterVariable(&r_q3bsp_renderskydepth);
1644 Cmd_AddCommand ("r_replacemaptexture", R_ReplaceWorldTexture, "override a map texture for testing purposes");
1645 Cmd_AddCommand ("r_listmaptextures", R_ListWorldTextures, "list all textures used by the current map");
1647 //R_RegisterModule("GL_Surf", gl_surf_start, gl_surf_shutdown, gl_surf_newmap);