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
27 cvar_t r_ambient = {0, "r_ambient", "0", "brightens map, value is 0-128"};
28 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)"};
29 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)"};
30 cvar_t r_useportalculling = {0, "r_useportalculling", "1", "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)"};
31 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"};
37 Combine and scale multiple lightmaps into the 8.8 format in blocklights
40 void R_BuildLightMap (const entity_render_t *ent, msurface_t *surface)
42 int smax, tmax, i, size, size3, maps, l;
44 unsigned char *lightmap, *out, *stain;
45 dp_model_t *model = ent->model;
47 unsigned char *templight;
49 smax = (surface->lightmapinfo->extents[0]>>4)+1;
50 tmax = (surface->lightmapinfo->extents[1]>>4)+1;
54 r_refdef.stats.lightmapupdatepixels += size;
55 r_refdef.stats.lightmapupdates++;
57 if (cl.buildlightmapmemorysize < size*sizeof(int[3]))
59 cl.buildlightmapmemorysize = size*sizeof(int[3]);
60 if (cl.buildlightmapmemory)
61 Mem_Free(cl.buildlightmapmemory);
62 cl.buildlightmapmemory = (unsigned char *) Mem_Alloc(cls.levelmempool, cl.buildlightmapmemorysize);
65 // these both point at the same buffer, templight is only used for final
66 // processing and can replace the intblocklights data as it goes
67 intblocklights = (int *)cl.buildlightmapmemory;
68 templight = (unsigned char *)cl.buildlightmapmemory;
70 // update cached lighting info
71 model->brushq1.lightmapupdateflags[surface - model->data_surfaces] = false;
73 lightmap = surface->lightmapinfo->samples;
75 // set to full bright if no light data
77 if (!model->brushq1.lightdata)
79 for (i = 0;i < size3;i++)
85 memset(bl, 0, size3*sizeof(*bl));
87 // add all the lightmaps
89 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++, lightmap += size3)
90 for (scale = r_refdef.scene.lightstylevalue[surface->lightmapinfo->styles[maps]], i = 0;i < size3;i++)
91 bl[i] += lightmap[i] * scale;
94 stain = surface->lightmapinfo->stainsamples;
97 // the >> 16 shift adjusts down 8 bits to account for the stainmap
98 // scaling, and remaps the 0-65536 (2x overbright) to 0-256, it will
99 // be doubled during rendering to achieve 2x overbright
100 // (0 = 0.0, 128 = 1.0, 256 = 2.0)
103 for (i = 0;i < size;i++, bl += 3, stain += 3, out += 4)
105 l = (bl[0] * stain[0]) >> 16;out[2] = min(l, 255);
106 l = (bl[1] * stain[1]) >> 16;out[1] = min(l, 255);
107 l = (bl[2] * stain[2]) >> 16;out[0] = min(l, 255);
113 for (i = 0;i < size;i++, bl += 3, out += 4)
115 l = bl[0] >> 8;out[2] = min(l, 255);
116 l = bl[1] >> 8;out[1] = min(l, 255);
117 l = bl[2] >> 8;out[0] = min(l, 255);
122 R_UpdateTexture(surface->lightmaptexture, templight, surface->lightmapinfo->lightmaporigin[0], surface->lightmapinfo->lightmaporigin[1], smax, tmax);
124 // update the surface's deluxemap if it has one
125 if (surface->deluxemaptexture != r_texture_blanknormalmap)
128 unsigned char *normalmap = surface->lightmapinfo->nmapsamples;
129 lightmap = surface->lightmapinfo->samples;
130 // clear to no normalmap
132 memset(bl, 0, size3*sizeof(*bl));
133 // add all the normalmaps
134 if (lightmap && normalmap)
136 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++, lightmap += size3, normalmap += size3)
138 for (scale = r_refdef.scene.lightstylevalue[surface->lightmapinfo->styles[maps]], i = 0;i < size;i++)
140 // add the normalmap with weighting proportional to the style's lightmap intensity
141 l = (int)(VectorLength(lightmap + i*3) * scale);
142 bl[i*3+0] += ((int)normalmap[i*3+0] - 128) * l;
143 bl[i*3+1] += ((int)normalmap[i*3+1] - 128) * l;
144 bl[i*3+2] += ((int)normalmap[i*3+2] - 128) * l;
150 // we simply renormalize the weighted normals to get a valid deluxemap
151 for (i = 0;i < size;i++, bl += 3, out += 4)
155 l = (int)(n[0] * 128 + 128);out[2] = bound(0, l, 255);
156 l = (int)(n[1] * 128 + 128);out[1] = bound(0, l, 255);
157 l = (int)(n[2] * 128 + 128);out[0] = bound(0, l, 255);
160 R_UpdateTexture(surface->deluxemaptexture, templight, surface->lightmapinfo->lightmaporigin[0], surface->lightmapinfo->lightmaporigin[1], smax, tmax);
164 void R_StainNode (mnode_t *node, dp_model_t *model, const vec3_t origin, float radius, const float fcolor[8])
166 float ndist, a, ratio, maxdist, maxdist2, maxdist3, invradius, sdtable[256], td, dist2;
167 msurface_t *surface, *endsurface;
168 int i, s, t, smax, tmax, smax3, impacts, impactt, stained;
172 maxdist = radius * radius;
173 invradius = 1.0f / radius;
178 ndist = PlaneDiff(origin, node->plane);
181 node = node->children[0];
186 node = node->children[1];
190 dist2 = ndist * ndist;
191 maxdist3 = maxdist - dist2;
193 if (node->plane->type < 3)
195 VectorCopy(origin, impact);
196 impact[node->plane->type] -= ndist;
200 impact[0] = origin[0] - node->plane->normal[0] * ndist;
201 impact[1] = origin[1] - node->plane->normal[1] * ndist;
202 impact[2] = origin[2] - node->plane->normal[2] * ndist;
205 for (surface = model->data_surfaces + node->firstsurface, endsurface = surface + node->numsurfaces;surface < endsurface;surface++)
207 if (surface->lightmapinfo->stainsamples)
209 smax = (surface->lightmapinfo->extents[0] >> 4) + 1;
210 tmax = (surface->lightmapinfo->extents[1] >> 4) + 1;
212 impacts = (int)(DotProduct (impact, surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3] - surface->lightmapinfo->texturemins[0]);
213 impactt = (int)(DotProduct (impact, surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3] - surface->lightmapinfo->texturemins[1]);
215 s = bound(0, impacts, smax * 16) - impacts;
216 t = bound(0, impactt, tmax * 16) - impactt;
217 i = (int)(s * s + t * t + dist2);
218 if ((i > maxdist) || (smax > (int)(sizeof(sdtable)/sizeof(sdtable[0])))) // smax overflow fix from Andreas Dehmel
221 // reduce calculations
222 for (s = 0, i = impacts; s < smax; s++, i -= 16)
223 sdtable[s] = i * i + dist2;
225 bl = surface->lightmapinfo->stainsamples;
230 for (t = 0;t < tmax;t++, i -= 16)
233 // make sure some part of it is visible on this line
236 maxdist2 = maxdist - td;
237 for (s = 0;s < smax;s++)
239 if (sdtable[s] < maxdist2)
241 ratio = lhrandom(0.0f, 1.0f);
242 a = (fcolor[3] + ratio * fcolor[7]) * (1.0f - sqrt(sdtable[s] + td) * invradius);
243 if (a >= (1.0f / 64.0f))
247 bl[0] = (unsigned char) ((float) bl[0] + a * ((fcolor[0] + ratio * fcolor[4]) - (float) bl[0]));
248 bl[1] = (unsigned char) ((float) bl[1] + a * ((fcolor[1] + ratio * fcolor[5]) - (float) bl[1]));
249 bl[2] = (unsigned char) ((float) bl[2] + a * ((fcolor[2] + ratio * fcolor[6]) - (float) bl[2]));
259 // force lightmap upload
261 model->brushq1.lightmapupdateflags[surface - model->data_surfaces] = true;
265 if (node->children[0]->plane)
267 if (node->children[1]->plane)
269 R_StainNode(node->children[0], model, origin, radius, fcolor);
270 node = node->children[1];
275 node = node->children[0];
279 else if (node->children[1]->plane)
281 node = node->children[1];
286 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)
290 entity_render_t *ent;
293 if (r_refdef.scene.worldmodel == NULL || !r_refdef.scene.worldmodel->brush.data_nodes || !r_refdef.scene.worldmodel->brushq1.lightdata)
298 fcolor[3] = ca1 * (1.0f / 64.0f);
299 fcolor[4] = cr2 - cr1;
300 fcolor[5] = cg2 - cg1;
301 fcolor[6] = cb2 - cb1;
302 fcolor[7] = (ca2 - ca1) * (1.0f / 64.0f);
304 R_StainNode(r_refdef.scene.worldmodel->brush.data_nodes + r_refdef.scene.worldmodel->brushq1.hulls[0].firstclipnode, r_refdef.scene.worldmodel, origin, radius, fcolor);
306 // look for embedded bmodels
307 for (n = 0;n < cl.num_brushmodel_entities;n++)
309 ent = &cl.entities[cl.brushmodel_entities[n]].render;
311 if (model && model->name[0] == '*')
313 if (model->brush.data_nodes)
315 Matrix4x4_Transform(&ent->inversematrix, origin, org);
316 R_StainNode(model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, model, org, radius, fcolor);
324 =============================================================
328 =============================================================
331 static void R_DrawPortal_Callback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
333 // due to the hacky nature of this function's parameters, this is never
334 // called with a batch, so numsurfaces is always 1, and the surfacelist
335 // contains only a leaf number for coloring purposes
336 const mportal_t *portal = (mportal_t *)ent;
340 float vertex3f[POLYGONELEMENTS_MAXPOINTS*3];
342 GL_BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
345 GL_PolygonOffset(r_refdef.polygonfactor, r_refdef.polygonoffset);
347 GL_CullFace(GL_NONE);
348 R_EntityMatrix(&identitymatrix);
350 numpoints = min(portal->numpoints, POLYGONELEMENTS_MAXPOINTS);
352 R_Mesh_VertexPointer(vertex3f, 0, 0);
353 R_Mesh_ColorPointer(NULL, 0, 0);
354 R_Mesh_ResetTextureState();
355 R_SetupShader_Generic(NULL, NULL, GL_MODULATE, 1);
357 isvis = (portal->here->clusterindex >= 0 && portal->past->clusterindex >= 0 && portal->here->clusterindex != portal->past->clusterindex);
359 i = surfacelist[0] >> 1;
360 GL_Color(((i & 0x0007) >> 0) * (1.0f / 7.0f) * r_refdef.view.colorscale,
361 ((i & 0x0038) >> 3) * (1.0f / 7.0f) * r_refdef.view.colorscale,
362 ((i & 0x01C0) >> 6) * (1.0f / 7.0f) * r_refdef.view.colorscale,
363 isvis ? 0.125f : 0.03125f);
364 for (i = 0, v = vertex3f;i < numpoints;i++, v += 3)
365 VectorCopy(portal->points[i].position, v);
366 R_Mesh_Draw(0, numpoints, 0, numpoints - 2, polygonelement3i, polygonelement3s, 0, 0);
369 // LordHavoc: this is just a nice debugging tool, very slow
370 void R_DrawPortals(void)
375 dp_model_t *model = r_refdef.scene.worldmodel;
378 for (leafnum = 0;leafnum < r_refdef.scene.worldmodel->brush.num_leafs;leafnum++)
380 if (r_refdef.viewcache.world_leafvisible[leafnum])
382 //for (portalnum = 0, portal = model->brush.data_portals;portalnum < model->brush.num_portals;portalnum++, portal++)
383 for (portal = r_refdef.scene.worldmodel->brush.data_leafs[leafnum].portals;portal;portal = portal->next)
385 if (portal->numpoints <= POLYGONELEMENTS_MAXPOINTS)
386 if (!R_CullBox(portal->mins, portal->maxs))
389 for (i = 0;i < portal->numpoints;i++)
390 VectorAdd(center, portal->points[i].position, center);
391 f = ixtable[portal->numpoints];
392 VectorScale(center, f, center);
393 R_MeshQueue_AddTransparent(center, R_DrawPortal_Callback, (entity_render_t *)portal, leafnum, rsurface.rtlight);
400 void R_View_WorldVisibility(qboolean forcenovis)
405 dp_model_t *model = r_refdef.scene.worldmodel;
410 if (r_refdef.view.usecustompvs)
412 // clear the visible surface and leaf flags arrays
413 memset(r_refdef.viewcache.world_surfacevisible, 0, model->num_surfaces);
414 memset(r_refdef.viewcache.world_leafvisible, 0, model->brush.num_leafs);
415 r_refdef.viewcache.world_novis = false;
417 // simply cull each marked leaf to the frustum (view pyramid)
418 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
420 // if leaf is in current pvs and on the screen, mark its surfaces
421 if (CHECKPVSBIT(r_refdef.viewcache.world_pvsbits, leaf->clusterindex) && !R_CullBox(leaf->mins, leaf->maxs))
423 r_refdef.stats.world_leafs++;
424 r_refdef.viewcache.world_leafvisible[j] = true;
425 if (leaf->numleafsurfaces)
426 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
427 r_refdef.viewcache.world_surfacevisible[*mark] = true;
433 // if possible find the leaf the view origin is in
434 viewleaf = model->brush.PointInLeaf ? model->brush.PointInLeaf(model, r_refdef.view.origin) : NULL;
435 // if possible fetch the visible cluster bits
436 if (!r_lockpvs.integer && model->brush.FatPVS)
437 model->brush.FatPVS(model, r_refdef.view.origin, 2, r_refdef.viewcache.world_pvsbits, (r_refdef.viewcache.world_numclusters+7)>>3, false);
439 if (!r_lockvisibility.integer)
441 // clear the visible surface and leaf flags arrays
442 memset(r_refdef.viewcache.world_surfacevisible, 0, model->num_surfaces);
443 memset(r_refdef.viewcache.world_leafvisible, 0, model->brush.num_leafs);
445 r_refdef.viewcache.world_novis = false;
447 // if floating around in the void (no pvs data available, and no
448 // portals available), simply use all on-screen leafs.
449 if (!viewleaf || viewleaf->clusterindex < 0 || forcenovis)
451 // no visibility method: (used when floating around in the void)
452 // simply cull each leaf to the frustum (view pyramid)
453 // similar to quake's RecursiveWorldNode but without cache misses
454 r_refdef.viewcache.world_novis = true;
455 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
457 // if leaf is in current pvs and on the screen, mark its surfaces
458 if (!R_CullBox(leaf->mins, leaf->maxs))
460 r_refdef.stats.world_leafs++;
461 r_refdef.viewcache.world_leafvisible[j] = true;
462 if (leaf->numleafsurfaces)
463 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
464 r_refdef.viewcache.world_surfacevisible[*mark] = true;
468 // just check if each leaf in the PVS is on screen
469 // (unless portal culling is enabled)
470 else if (!model->brush.data_portals || r_useportalculling.integer < 1 || (r_useportalculling.integer < 2 && !r_novis.integer))
473 // simply check if each leaf is in the Potentially Visible Set,
474 // and cull to frustum (view pyramid)
475 // similar to quake's RecursiveWorldNode but without cache misses
476 for (j = 0, leaf = model->brush.data_leafs;j < model->brush.num_leafs;j++, leaf++)
478 // if leaf is in current pvs and on the screen, mark its surfaces
479 if (CHECKPVSBIT(r_refdef.viewcache.world_pvsbits, leaf->clusterindex) && !R_CullBox(leaf->mins, leaf->maxs))
481 r_refdef.stats.world_leafs++;
482 r_refdef.viewcache.world_leafvisible[j] = true;
483 if (leaf->numleafsurfaces)
484 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
485 r_refdef.viewcache.world_surfacevisible[*mark] = true;
489 // if desired use a recursive portal flow, culling each portal to
490 // frustum and checking if the leaf the portal leads to is in the pvs
495 mleaf_t *leafstack[8192];
496 // simple-frustum portal method:
497 // follows portals leading outward from viewleaf, does not venture
498 // offscreen or into leafs that are not visible, faster than
499 // Quake's RecursiveWorldNode and vastly better in unvised maps,
500 // often culls some surfaces that pvs alone would miss
501 // (such as a room in pvs that is hidden behind a wall, but the
502 // passage leading to the room is off-screen)
503 leafstack[0] = viewleaf;
507 leaf = leafstack[--leafstackpos];
508 if (r_refdef.viewcache.world_leafvisible[leaf - model->brush.data_leafs])
510 r_refdef.stats.world_leafs++;
511 r_refdef.viewcache.world_leafvisible[leaf - model->brush.data_leafs] = true;
512 // mark any surfaces bounding this leaf
513 if (leaf->numleafsurfaces)
514 for (i = 0, mark = leaf->firstleafsurface;i < leaf->numleafsurfaces;i++, mark++)
515 r_refdef.viewcache.world_surfacevisible[*mark] = true;
516 // follow portals into other leafs
518 // if viewer is behind portal (portal faces outward into the scene)
519 // and the portal polygon's bounding box is on the screen
520 // and the leaf has not been visited yet
521 // and the leaf is visible in the pvs
522 // (the first two checks won't cause as many cache misses as the leaf checks)
523 for (p = leaf->portals;p;p = p->next)
525 r_refdef.stats.world_portals++;
526 if (DotProduct(r_refdef.view.origin, p->plane.normal) < (p->plane.dist + 1)
527 && !r_refdef.viewcache.world_leafvisible[p->past - model->brush.data_leafs]
528 && CHECKPVSBIT(r_refdef.viewcache.world_pvsbits, p->past->clusterindex)
529 && !R_CullBox(p->mins, p->maxs)
530 && leafstackpos < (int)(sizeof(leafstack) / sizeof(leafstack[0])))
531 leafstack[leafstackpos++] = p->past;
538 void R_Q1BSP_DrawSky(entity_render_t *ent)
540 if (ent->model == NULL)
542 if (ent == r_refdef.scene.worldentity)
543 R_DrawWorldSurfaces(true, true, false, false, false);
545 R_DrawModelSurfaces(ent, true, true, false, false, false);
548 extern void R_Water_AddWaterPlane(msurface_t *surface, int entno);
549 void R_Q1BSP_DrawAddWaterPlanes(entity_render_t *ent)
551 int i, j, n, flagsmask;
552 dp_model_t *model = ent->model;
553 msurface_t *surfaces;
557 if (ent == r_refdef.scene.worldentity)
558 RSurf_ActiveWorldEntity();
560 RSurf_ActiveModelEntity(ent, false, false, false);
562 surfaces = model->data_surfaces;
563 flagsmask = MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA;
565 // add visible surfaces to draw list
566 if (ent == r_refdef.scene.worldentity)
568 for (i = 0;i < model->nummodelsurfaces;i++)
570 j = model->sortedmodelsurfaces[i];
571 if (r_refdef.viewcache.world_surfacevisible[j])
572 if (surfaces[j].texture->basematerialflags & flagsmask)
573 R_Water_AddWaterPlane(surfaces + j, 0);
578 if(ent->entitynumber >= MAX_EDICTS) // && CL_VM_TransformView(ent->entitynumber - MAX_EDICTS, NULL, NULL, NULL))
579 n = ent->entitynumber;
582 for (i = 0;i < model->nummodelsurfaces;i++)
584 j = model->sortedmodelsurfaces[i];
585 if (surfaces[j].texture->basematerialflags & flagsmask)
586 R_Water_AddWaterPlane(surfaces + j, n);
589 rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
592 void R_Q1BSP_Draw(entity_render_t *ent)
594 dp_model_t *model = ent->model;
597 if (ent == r_refdef.scene.worldentity)
598 R_DrawWorldSurfaces(false, true, false, false, false);
600 R_DrawModelSurfaces(ent, false, true, false, false, false);
603 void R_Q1BSP_DrawDepth(entity_render_t *ent)
605 dp_model_t *model = ent->model;
608 GL_ColorMask(0,0,0,0);
611 GL_BlendFunc(GL_ONE, GL_ZERO);
614 R_Mesh_ColorPointer(NULL, 0, 0);
615 R_Mesh_ResetTextureState();
616 R_SetupShader_DepthOrShadow();
617 if (ent == r_refdef.scene.worldentity)
618 R_DrawWorldSurfaces(false, false, true, false, false);
620 R_DrawModelSurfaces(ent, false, false, true, false, false);
621 GL_ColorMask(r_refdef.view.colormask[0], r_refdef.view.colormask[1], r_refdef.view.colormask[2], 1);
624 void R_Q1BSP_DrawDebug(entity_render_t *ent)
626 if (ent->model == NULL)
628 if (ent == r_refdef.scene.worldentity)
629 R_DrawWorldSurfaces(false, false, false, true, false);
631 R_DrawModelSurfaces(ent, false, false, false, true, false);
634 void R_Q1BSP_DrawPrepass(entity_render_t *ent)
636 dp_model_t *model = ent->model;
639 if (ent == r_refdef.scene.worldentity)
640 R_DrawWorldSurfaces(false, true, false, false, true);
642 R_DrawModelSurfaces(ent, false, true, false, false, true);
645 typedef struct r_q1bsp_getlightinfo_s
648 vec3_t relativelightorigin;
651 unsigned char *outleafpvs;
653 unsigned char *visitingleafpvs;
655 unsigned char *outsurfacepvs;
656 unsigned char *tempsurfacepvs;
657 unsigned char *outshadowtrispvs;
658 unsigned char *outlighttrispvs;
664 const unsigned char *pvs;
665 qboolean svbsp_active;
666 qboolean svbsp_insertoccluder;
667 int numfrustumplanes;
668 const mplane_t *frustumplanes;
670 r_q1bsp_getlightinfo_t;
672 static void R_Q1BSP_RecursiveGetLightInfo(r_q1bsp_getlightinfo_t *info, mnode_t *node)
678 mplane_t *plane = node->plane;
679 //if (!BoxesOverlap(info->lightmins, info->lightmaxs, node->mins, node->maxs))
683 //if (!r_shadow_compilingrtlight && R_CullBoxCustomPlanes(node->mins, node->maxs, rtlight->cached_numfrustumplanes, rtlight->cached_frustumplanes))
687 if (info->lightmins[plane->type] > plane->dist)
688 node = node->children[0];
689 else if (info->lightmaxs[plane->type] < plane->dist)
690 node = node->children[1];
691 else if (info->relativelightorigin[plane->type] >= plane->dist)
693 R_Q1BSP_RecursiveGetLightInfo(info, node->children[0]);
694 node = node->children[1];
698 R_Q1BSP_RecursiveGetLightInfo(info, node->children[1]);
699 node = node->children[0];
704 sides = BoxOnPlaneSide(info->lightmins, info->lightmaxs, plane);
707 // recurse front side first because the svbsp building prefers it
708 if (PlaneDist(info->relativelightorigin, plane) >= 0)
710 R_Q1BSP_RecursiveGetLightInfo(info, node->children[0]);
711 node = node->children[1];
715 R_Q1BSP_RecursiveGetLightInfo(info, node->children[1]);
716 node = node->children[0];
720 return; // ERROR: NAN bounding box!
722 node = node->children[sides - 1];
725 if (!r_shadow_compilingrtlight && R_CullBoxCustomPlanes(node->mins, node->maxs, info->numfrustumplanes, info->frustumplanes))
727 leaf = (mleaf_t *)node;
728 if (r_shadow_frontsidecasting.integer && info->pvs != NULL && !CHECKPVSBIT(info->pvs, leaf->clusterindex))
730 if (info->svbsp_active)
734 static float points[128][3];
735 for (portal = leaf->portals;portal;portal = portal->next)
737 for (i = 0;i < portal->numpoints;i++)
738 VectorCopy(portal->points[i].position, points[i]);
739 if (SVBSP_AddPolygon(&r_svbsp, portal->numpoints, points[0], false, NULL, NULL, 0) & 2)
743 return; // no portals of this leaf visible
745 if (info->svbsp_insertoccluder)
747 int leafsurfaceindex;
749 int triangleindex, t;
750 int currentmaterialflags;
756 for (leafsurfaceindex = 0;leafsurfaceindex < leaf->numleafsurfaces;leafsurfaceindex++)
758 surfaceindex = leaf->firstleafsurface[leafsurfaceindex];
759 if (!CHECKPVSBIT(info->outsurfacepvs, surfaceindex))
761 surface = info->model->data_surfaces + surfaceindex;
762 currentmaterialflags = R_GetCurrentTexture(surface->texture)->currentmaterialflags;
763 castshadow = !(currentmaterialflags & MATERIALFLAG_NOSHADOW);
764 if (castshadow && BoxesOverlap(info->lightmins, info->lightmaxs, surface->mins, surface->maxs))
766 qboolean insidebox = BoxInsideBox(surface->mins, surface->maxs, info->lightmins, info->lightmaxs);
767 for (triangleindex = 0, t = surface->num_firstshadowmeshtriangle, e = info->model->brush.shadowmesh->element3i + t * 3;triangleindex < surface->num_triangles;triangleindex++, t++, e += 3)
769 v[0] = info->model->brush.shadowmesh->vertex3f + e[0] * 3;
770 v[1] = info->model->brush.shadowmesh->vertex3f + e[1] * 3;
771 v[2] = info->model->brush.shadowmesh->vertex3f + e[2] * 3;
772 VectorCopy(v[0], v2[0]);
773 VectorCopy(v[1], v2[1]);
774 VectorCopy(v[2], v2[2]);
775 if (insidebox || TriangleOverlapsBox(v2[0], v2[1], v2[2], info->lightmins, info->lightmaxs))
776 SVBSP_AddPolygon(&r_svbsp, 3, v2[0], true, NULL, NULL, 0);
783 info->outmins[0] = min(info->outmins[0], leaf->mins[0]);
784 info->outmins[1] = min(info->outmins[1], leaf->mins[1]);
785 info->outmins[2] = min(info->outmins[2], leaf->mins[2]);
786 info->outmaxs[0] = max(info->outmaxs[0], leaf->maxs[0]);
787 info->outmaxs[1] = max(info->outmaxs[1], leaf->maxs[1]);
788 info->outmaxs[2] = max(info->outmaxs[2], leaf->maxs[2]);
789 if (info->outleafpvs)
791 int leafindex = leaf - info->model->brush.data_leafs;
792 if (!CHECKPVSBIT(info->outleafpvs, leafindex))
794 SETPVSBIT(info->outleafpvs, leafindex);
795 info->outleaflist[info->outnumleafs++] = leafindex;
798 if (info->outsurfacepvs)
800 int leafsurfaceindex;
802 int triangleindex, t;
803 int currentmaterialflags;
809 for (leafsurfaceindex = 0;leafsurfaceindex < leaf->numleafsurfaces;leafsurfaceindex++)
811 surfaceindex = leaf->firstleafsurface[leafsurfaceindex];
812 if (!CHECKPVSBIT(info->outsurfacepvs, surfaceindex))
814 surface = info->model->data_surfaces + surfaceindex;
815 currentmaterialflags = R_GetCurrentTexture(surface->texture)->currentmaterialflags;
816 castshadow = !(currentmaterialflags & MATERIALFLAG_NOSHADOW);
817 if (BoxesOverlap(info->lightmins, info->lightmaxs, surface->mins, surface->maxs))
819 qboolean addedtris = false;
820 qboolean insidebox = BoxInsideBox(surface->mins, surface->maxs, info->lightmins, info->lightmaxs);
821 for (triangleindex = 0, t = surface->num_firstshadowmeshtriangle, e = info->model->brush.shadowmesh->element3i + t * 3;triangleindex < surface->num_triangles;triangleindex++, t++, e += 3)
823 v[0] = info->model->brush.shadowmesh->vertex3f + e[0] * 3;
824 v[1] = info->model->brush.shadowmesh->vertex3f + e[1] * 3;
825 v[2] = info->model->brush.shadowmesh->vertex3f + e[2] * 3;
826 VectorCopy(v[0], v2[0]);
827 VectorCopy(v[1], v2[1]);
828 VectorCopy(v[2], v2[2]);
829 if (insidebox || TriangleOverlapsBox(v2[0], v2[1], v2[2], info->lightmins, info->lightmaxs))
831 if (info->svbsp_active)
833 if (!(SVBSP_AddPolygon(&r_svbsp, 3, v2[0], false, NULL, NULL, 0) & 2))
836 if (currentmaterialflags & MATERIALFLAG_NOCULLFACE)
838 // if the material is double sided we
839 // can't cull by direction
840 SETPVSBIT(info->outlighttrispvs, t);
843 SETPVSBIT(info->outshadowtrispvs, t);
846 else if (r_shadow_frontsidecasting.integer)
848 // front side casting occludes backfaces,
849 // so they are completely useless as both
850 // casters and lit polygons
851 if (!PointInfrontOfTriangle(info->relativelightorigin, v2[0], v2[1], v2[2]))
853 SETPVSBIT(info->outlighttrispvs, t);
856 SETPVSBIT(info->outshadowtrispvs, t);
861 // back side casting does not occlude
862 // anything so we can't cull lit polygons
863 SETPVSBIT(info->outlighttrispvs, t);
865 if (castshadow && !PointInfrontOfTriangle(info->relativelightorigin, v2[0], v2[1], v2[2]))
866 SETPVSBIT(info->outshadowtrispvs, t);
872 SETPVSBIT(info->outsurfacepvs, surfaceindex);
873 info->outsurfacelist[info->outnumsurfaces++] = surfaceindex;
881 static void R_Q1BSP_CallRecursiveGetLightInfo(r_q1bsp_getlightinfo_t *info, qboolean use_svbsp)
886 VectorCopy(info->relativelightorigin, origin);
889 r_svbsp.maxnodes = max(r_svbsp.maxnodes, 1<<18);
890 r_svbsp.nodes = (svbsp_node_t*) Mem_Alloc(r_main_mempool, r_svbsp.maxnodes * sizeof(svbsp_node_t));
892 info->svbsp_active = true;
893 info->svbsp_insertoccluder = true;
896 SVBSP_Init(&r_svbsp, origin, r_svbsp.maxnodes, r_svbsp.nodes);
897 R_Q1BSP_RecursiveGetLightInfo(info, info->model->brush.data_nodes);
898 // if that failed, retry with more nodes
899 if (r_svbsp.ranoutofnodes)
901 // an upper limit is imposed
902 if (r_svbsp.maxnodes >= 2<<22)
904 Mem_Free(r_svbsp.nodes);
905 r_svbsp.maxnodes *= 2;
906 r_svbsp.nodes = (svbsp_node_t*) Mem_Alloc(tempmempool, r_svbsp.maxnodes * sizeof(svbsp_node_t));
911 // now clear the surfacepvs array because we need to redo it
912 //memset(info->outsurfacepvs, 0, (info->model->nummodelsurfaces + 7) >> 3);
913 //info->outnumsurfaces = 0;
916 info->svbsp_active = false;
918 // we HAVE to mark the leaf the light is in as lit, because portals are
919 // irrelevant to a leaf that the light source is inside of
920 // (and they are all facing away, too)
922 mnode_t *node = info->model->brush.data_nodes;
925 node = node->children[(node->plane->type < 3 ? info->relativelightorigin[node->plane->type] : DotProduct(info->relativelightorigin,node->plane->normal)) < node->plane->dist];
926 leaf = (mleaf_t *)node;
927 info->outmins[0] = min(info->outmins[0], leaf->mins[0]);
928 info->outmins[1] = min(info->outmins[1], leaf->mins[1]);
929 info->outmins[2] = min(info->outmins[2], leaf->mins[2]);
930 info->outmaxs[0] = max(info->outmaxs[0], leaf->maxs[0]);
931 info->outmaxs[1] = max(info->outmaxs[1], leaf->maxs[1]);
932 info->outmaxs[2] = max(info->outmaxs[2], leaf->maxs[2]);
933 if (info->outleafpvs)
935 int leafindex = leaf - info->model->brush.data_leafs;
936 if (!CHECKPVSBIT(info->outleafpvs, leafindex))
938 SETPVSBIT(info->outleafpvs, leafindex);
939 info->outleaflist[info->outnumleafs++] = leafindex;
944 info->svbsp_insertoccluder = false;
945 R_Q1BSP_RecursiveGetLightInfo(info, info->model->brush.data_nodes);
946 if (developer_extra.integer && use_svbsp)
948 Con_DPrintf("GetLightInfo: svbsp built with %i nodes, polygon stats:\n", r_svbsp.numnodes);
949 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);
950 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);
954 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)
956 r_q1bsp_getlightinfo_t info;
957 VectorCopy(relativelightorigin, info.relativelightorigin);
958 info.lightradius = lightradius;
959 info.lightmins[0] = info.relativelightorigin[0] - info.lightradius;
960 info.lightmins[1] = info.relativelightorigin[1] - info.lightradius;
961 info.lightmins[2] = info.relativelightorigin[2] - info.lightradius;
962 info.lightmaxs[0] = info.relativelightorigin[0] + info.lightradius;
963 info.lightmaxs[1] = info.relativelightorigin[1] + info.lightradius;
964 info.lightmaxs[2] = info.relativelightorigin[2] + info.lightradius;
965 if (ent->model == NULL)
967 VectorCopy(info.lightmins, outmins);
968 VectorCopy(info.lightmaxs, outmaxs);
969 *outnumleafspointer = 0;
970 *outnumsurfacespointer = 0;
973 info.model = ent->model;
974 info.outleaflist = outleaflist;
975 info.outleafpvs = outleafpvs;
976 info.outnumleafs = 0;
977 info.visitingleafpvs = visitingleafpvs;
978 info.outsurfacelist = outsurfacelist;
979 info.outsurfacepvs = outsurfacepvs;
980 info.outshadowtrispvs = outshadowtrispvs;
981 info.outlighttrispvs = outlighttrispvs;
982 info.outnumsurfaces = 0;
983 info.numfrustumplanes = numfrustumplanes;
984 info.frustumplanes = frustumplanes;
985 VectorCopy(info.relativelightorigin, info.outmins);
986 VectorCopy(info.relativelightorigin, info.outmaxs);
987 memset(visitingleafpvs, 0, (info.model->brush.num_leafs + 7) >> 3);
988 memset(outleafpvs, 0, (info.model->brush.num_leafs + 7) >> 3);
989 memset(outsurfacepvs, 0, (info.model->nummodelsurfaces + 7) >> 3);
990 if (info.model->brush.shadowmesh)
991 memset(outshadowtrispvs, 0, (info.model->brush.shadowmesh->numtriangles + 7) >> 3);
993 memset(outshadowtrispvs, 0, (info.model->surfmesh.num_triangles + 7) >> 3);
994 memset(outlighttrispvs, 0, (info.model->surfmesh.num_triangles + 7) >> 3);
995 if (info.model->brush.GetPVS && r_shadow_frontsidecasting.integer)
996 info.pvs = info.model->brush.GetPVS(info.model, info.relativelightorigin);
999 RSurf_ActiveWorldEntity();
1001 if (r_shadow_frontsidecasting.integer && r_shadow_compilingrtlight && r_shadow_realtime_world_compileportalculling.integer && info.model->brush.data_portals)
1003 // use portal recursion for exact light volume culling, and exact surface checking
1004 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);
1006 else if (r_shadow_frontsidecasting.integer && r_shadow_realtime_dlight_portalculling.integer && info.model->brush.data_portals)
1008 // use portal recursion for exact light volume culling, but not the expensive exact surface checking
1009 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);
1013 // recurse the bsp tree, checking leafs and surfaces for visibility
1014 // optionally using svbsp for exact culling of compiled lights
1015 // (or if the user enables dlight svbsp culling, which is mostly for
1016 // debugging not actual use)
1017 R_Q1BSP_CallRecursiveGetLightInfo(&info, (r_shadow_compilingrtlight ? r_shadow_realtime_world_compilesvbsp.integer : r_shadow_realtime_dlight_svbspculling.integer) != 0);
1020 rsurface.entity = NULL; // used only by R_GetCurrentTexture and RSurf_ActiveWorldEntity/RSurf_ActiveModelEntity
1022 // limit combined leaf box to light boundaries
1023 outmins[0] = max(info.outmins[0] - 1, info.lightmins[0]);
1024 outmins[1] = max(info.outmins[1] - 1, info.lightmins[1]);
1025 outmins[2] = max(info.outmins[2] - 1, info.lightmins[2]);
1026 outmaxs[0] = min(info.outmaxs[0] + 1, info.lightmaxs[0]);
1027 outmaxs[1] = min(info.outmaxs[1] + 1, info.lightmaxs[1]);
1028 outmaxs[2] = min(info.outmaxs[2] + 1, info.lightmaxs[2]);
1030 *outnumleafspointer = info.outnumleafs;
1031 *outnumsurfacespointer = info.outnumsurfaces;
1034 void R_Q1BSP_CompileShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativelightdirection, float lightradius, int numsurfaces, const int *surfacelist)
1036 dp_model_t *model = ent->model;
1037 msurface_t *surface;
1038 int surfacelistindex;
1039 float projectdistance = relativelightdirection ? lightradius : lightradius + model->radius*2 + r_shadow_projectdistance.value;
1040 r_shadow_compilingrtlight->static_meshchain_shadow_zfail = Mod_ShadowMesh_Begin(r_main_mempool, 32768, 32768, NULL, NULL, NULL, false, false, true);
1041 R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
1042 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
1044 surface = model->data_surfaces + surfacelist[surfacelistindex];
1045 if (surface->texture->basematerialflags & MATERIALFLAG_NOSHADOW)
1047 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);
1049 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);
1050 r_shadow_compilingrtlight->static_meshchain_shadow_zfail = Mod_ShadowMesh_Finish(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow_zfail, false, false, true);
1053 extern cvar_t r_polygonoffset_submodel_factor;
1054 extern cvar_t r_polygonoffset_submodel_offset;
1055 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)
1057 dp_model_t *model = ent->model;
1058 const msurface_t *surface;
1059 int modelsurfacelistindex;
1060 float projectdistance = relativelightdirection ? lightradius : lightradius + model->radius*2 + r_shadow_projectdistance.value;
1061 // check the box in modelspace, it was already checked in worldspace
1062 if (!BoxesOverlap(model->normalmins, model->normalmaxs, lightmins, lightmaxs))
1064 if (ent->model->brush.submodel)
1065 GL_PolygonOffset(r_refdef.shadowpolygonfactor + r_polygonoffset_submodel_factor.value, r_refdef.shadowpolygonoffset + r_polygonoffset_submodel_offset.value);
1066 if (model->brush.shadowmesh)
1068 R_Shadow_PrepareShadowMark(model->brush.shadowmesh->numtriangles);
1069 for (modelsurfacelistindex = 0;modelsurfacelistindex < modelnumsurfaces;modelsurfacelistindex++)
1071 surface = model->data_surfaces + modelsurfacelist[modelsurfacelistindex];
1072 if (R_GetCurrentTexture(surface->texture)->currentmaterialflags & MATERIALFLAG_NOSHADOW)
1074 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);
1076 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);
1080 projectdistance = lightradius + model->radius*2;
1081 R_Shadow_PrepareShadowMark(model->surfmesh.num_triangles);
1082 // identify lit faces within the bounding box
1083 for (modelsurfacelistindex = 0;modelsurfacelistindex < modelnumsurfaces;modelsurfacelistindex++)
1085 surface = model->data_surfaces + modelsurfacelist[modelsurfacelistindex];
1086 rsurface.texture = R_GetCurrentTexture(surface->texture);
1087 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_NOSHADOW)
1089 RSurf_PrepareVerticesForBatch(false, false, 1, &surface);
1090 R_Shadow_MarkVolumeFromBox(surface->num_firsttriangle, surface->num_triangles, rsurface.vertex3f, rsurface.modelelement3i, relativelightorigin, relativelightdirection, lightmins, lightmaxs, surface->mins, surface->maxs);
1092 R_Shadow_VolumeFromList(model->surfmesh.num_vertices, model->surfmesh.num_triangles, rsurface.vertex3f, model->surfmesh.data_element3i, model->surfmesh.data_neighbor3i, relativelightorigin, relativelightdirection, projectdistance, numshadowmark, shadowmarklist, ent->mins, ent->maxs);
1094 if (ent->model->brush.submodel)
1095 GL_PolygonOffset(r_refdef.shadowpolygonfactor, r_refdef.shadowpolygonoffset);
1098 void R_Q1BSP_CompileShadowMap(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativelightdirection, float lightradius, int numsurfaces, const int *surfacelist)
1100 dp_model_t *model = ent->model;
1101 msurface_t *surface;
1102 int surfacelistindex;
1103 int sidetotals[6] = { 0, 0, 0, 0, 0, 0 }, sidemasks = 0;
1105 r_shadow_compilingrtlight->static_meshchain_shadow_shadowmap = Mod_ShadowMesh_Begin(r_main_mempool, 32768, 32768, NULL, NULL, NULL, false, false, true);
1106 R_Shadow_PrepareShadowSides(model->brush.shadowmesh->numtriangles);
1107 for (surfacelistindex = 0;surfacelistindex < numsurfaces;surfacelistindex++)
1109 surface = model->data_surfaces + surfacelist[surfacelistindex];
1110 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);
1112 R_Shadow_ShadowMapFromList(model->brush.shadowmesh->numverts, model->brush.shadowmesh->numtriangles, model->brush.shadowmesh->vertex3f, model->brush.shadowmesh->element3i, numshadowsides, sidetotals, shadowsides, shadowsideslist);
1113 r_shadow_compilingrtlight->static_meshchain_shadow_shadowmap = Mod_ShadowMesh_Finish(r_main_mempool, r_shadow_compilingrtlight->static_meshchain_shadow_shadowmap, false, false, true);
1114 r_shadow_compilingrtlight->static_shadowmap_receivers &= sidemasks;
1117 r_shadow_compilingrtlight->static_shadowmap_casters &= ~(1 << i);
1120 #define RSURF_MAX_BATCHSURFACES 8192
1122 static const msurface_t *batchsurfacelist[RSURF_MAX_BATCHSURFACES];
1124 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)
1126 dp_model_t *model = ent->model;
1127 const msurface_t *surface;
1128 int modelsurfacelistindex, batchnumsurfaces;
1129 // check the box in modelspace, it was already checked in worldspace
1130 if (!BoxesOverlap(model->normalmins, model->normalmaxs, lightmins, lightmaxs))
1132 // identify lit faces within the bounding box
1133 for (modelsurfacelistindex = 0;modelsurfacelistindex < modelnumsurfaces;modelsurfacelistindex++)
1135 surface = model->data_surfaces + modelsurfacelist[modelsurfacelistindex];
1136 if (surfacesides && !(surfacesides[modelsurfacelistindex] && (1 << side)))
1138 rsurface.texture = R_GetCurrentTexture(surface->texture);
1139 if (rsurface.texture->currentmaterialflags & MATERIALFLAG_NOSHADOW)
1141 if (!BoxesOverlap(lightmins, lightmaxs, surface->mins, surface->maxs))
1143 r_refdef.stats.lights_dynamicshadowtriangles += surface->num_triangles;
1144 r_refdef.stats.lights_shadowtriangles += surface->num_triangles;
1145 batchsurfacelist[0] = surface;
1146 batchnumsurfaces = 1;
1147 while(++modelsurfacelistindex < modelnumsurfaces && batchnumsurfaces < RSURF_MAX_BATCHSURFACES)
1149 surface = model->data_surfaces + modelsurfacelist[modelsurfacelistindex];
1150 if (surfacesides && !(surfacesides[modelsurfacelistindex] & (1 << side)))
1152 if (surface->texture != batchsurfacelist[0]->texture)
1154 if (!BoxesOverlap(lightmins, lightmaxs, surface->mins, surface->maxs))
1156 r_refdef.stats.lights_dynamicshadowtriangles += surface->num_triangles;
1157 r_refdef.stats.lights_shadowtriangles += surface->num_triangles;
1158 batchsurfacelist[batchnumsurfaces++] = surface;
1160 --modelsurfacelistindex;
1161 GL_CullFace(rsurface.texture->currentmaterialflags & MATERIALFLAG_NOCULLFACE ? GL_NONE : r_refdef.view.cullface_back);
1162 RSurf_PrepareVerticesForBatch(false, false, batchnumsurfaces, batchsurfacelist);
1163 RSurf_DrawBatch_Simple(batchnumsurfaces, batchsurfacelist);
1167 #define BATCHSIZE 1024
1169 static void R_Q1BSP_DrawLight_TransparentCallback(const entity_render_t *ent, const rtlight_t *rtlight, int numsurfaces, int *surfacelist)
1171 int i, j, endsurface;
1173 const msurface_t *surface;
1174 // note: in practice this never actually receives batches), oh well
1175 R_Shadow_RenderMode_Begin();
1176 R_Shadow_RenderMode_ActiveLight(rtlight);
1177 R_Shadow_RenderMode_Lighting(false, true, false);
1178 R_Shadow_SetupEntityLight(ent);
1179 for (i = 0;i < numsurfaces;i = j)
1182 surface = rsurface.modelsurfaces + surfacelist[i];
1183 t = surface->texture;
1184 rsurface.texture = R_GetCurrentTexture(t);
1185 endsurface = min(j + BATCHSIZE, numsurfaces);
1186 for (j = i;j < endsurface;j++)
1188 surface = rsurface.modelsurfaces + surfacelist[j];
1189 if (t != surface->texture)
1191 RSurf_PrepareVerticesForBatch(true, true, 1, &surface);
1192 R_Shadow_RenderLighting(surface->num_firstvertex, surface->num_vertices, surface->num_firsttriangle, surface->num_triangles, ent->model->surfmesh.data_element3i, ent->model->surfmesh.data_element3s, ent->model->surfmesh.ebo3i, ent->model->surfmesh.ebo3s);
1195 R_Shadow_RenderMode_End();
1198 extern qboolean r_shadow_usingdeferredprepass;
1199 void R_Q1BSP_DrawLight(entity_render_t *ent, int numsurfaces, const int *surfacelist, const unsigned char *lighttrispvs)
1201 dp_model_t *model = ent->model;
1202 const msurface_t *surface;
1203 int i, k, kend, l, m, mend, endsurface, batchnumsurfaces, batchnumtriangles, batchfirstvertex, batchlastvertex, batchfirsttriangle;
1204 const int *element3i;
1205 static int batchelements[BATCHSIZE*3];
1208 element3i = rsurface.modelelement3i;
1209 // this is a double loop because non-visible surface skipping has to be
1210 // fast, and even if this is not the world model (and hence no visibility
1211 // checking) the input surface list and batch buffer are different formats
1212 // so some processing is necessary. (luckily models have few surfaces)
1213 for (i = 0;i < numsurfaces;)
1215 batchnumsurfaces = 0;
1216 endsurface = min(i + RSURF_MAX_BATCHSURFACES, numsurfaces);
1217 if (ent == r_refdef.scene.worldentity)
1219 for (;i < endsurface;i++)
1220 if (r_refdef.viewcache.world_surfacevisible[surfacelist[i]])
1221 batchsurfacelist[batchnumsurfaces++] = model->data_surfaces + surfacelist[i];
1225 for (;i < endsurface;i++)
1226 batchsurfacelist[batchnumsurfaces++] = model->data_surfaces + surfacelist[i];
1228 if (!batchnumsurfaces)
1230 for (k = 0;k < batchnumsurfaces;k = kend)
1232 surface = batchsurfacelist[k];
1233 tex = surface->texture;
1234 rsurface.texture = R_GetCurrentTexture(tex);
1235 // gather surfaces into a batch range
1236 for (kend = k;kend < batchnumsurfaces && tex == batchsurfacelist[kend]->texture;kend++)
1238 // now figure out what to do with this particular range of surfaces
1239 if (!(rsurface.texture->currentmaterialflags & MATERIALFLAG_WALL))
1241 if (r_waterstate.renderingscene && (rsurface.texture->currentmaterialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA)))
1243 if (rsurface.texture->currentmaterialflags & MATERIALFLAGMASK_DEPTHSORTED)
1245 vec3_t tempcenter, center;
1246 for (l = k;l < kend;l++)
1248 surface = batchsurfacelist[l];
1249 tempcenter[0] = (surface->mins[0] + surface->maxs[0]) * 0.5f;
1250 tempcenter[1] = (surface->mins[1] + surface->maxs[1]) * 0.5f;
1251 tempcenter[2] = (surface->mins[2] + surface->maxs[2]) * 0.5f;
1252 Matrix4x4_Transform(&rsurface.matrix, tempcenter, center);
1253 R_MeshQueue_AddTransparent(rsurface.texture->currentmaterialflags & MATERIALFLAG_NODEPTHTEST ? r_refdef.view.origin : center, R_Q1BSP_DrawLight_TransparentCallback, ent, surface - rsurface.modelsurfaces, rsurface.rtlight);
1257 if (r_shadow_usingdeferredprepass)
1259 batchnumtriangles = 0;
1260 batchfirsttriangle = surface->num_firsttriangle;
1261 m = 0; // hush warning
1262 for (l = k;l < kend;l++)
1264 surface = batchsurfacelist[l];
1265 RSurf_PrepareVerticesForBatch(true, true, 1, &surface);
1266 for (m = surface->num_firsttriangle, mend = m + surface->num_triangles;m < mend;m++)
1268 if (lighttrispvs && r_test.integer && !CHECKPVSBIT(lighttrispvs, m))
1270 if (batchnumtriangles >= BATCHSIZE)
1272 r_refdef.stats.lights_lighttriangles += batchnumtriangles;
1273 Mod_VertexRangeFromElements(batchnumtriangles*3, batchelements, &batchfirstvertex, &batchlastvertex);
1274 // use the element buffer if all triangles are consecutive
1275 if (m == batchfirsttriangle + batchnumtriangles)
1276 R_Shadow_RenderLighting(batchfirstvertex, batchlastvertex + 1 - batchfirstvertex, batchfirsttriangle, batchnumtriangles, ent->model->surfmesh.data_element3i, ent->model->surfmesh.data_element3s, ent->model->surfmesh.ebo3i, ent->model->surfmesh.ebo3s);
1278 R_Shadow_RenderLighting(batchfirstvertex, batchlastvertex + 1 - batchfirstvertex, 0, batchnumtriangles, batchelements, NULL, 0, 0);
1279 batchnumtriangles = 0;
1280 batchfirsttriangle = m;
1282 batchelements[batchnumtriangles*3+0] = element3i[m*3+0];
1283 batchelements[batchnumtriangles*3+1] = element3i[m*3+1];
1284 batchelements[batchnumtriangles*3+2] = element3i[m*3+2];
1285 batchnumtriangles++;
1288 if (batchnumtriangles > 0)
1290 r_refdef.stats.lights_lighttriangles += batchnumtriangles;
1291 Mod_VertexRangeFromElements(batchnumtriangles*3, batchelements, &batchfirstvertex, &batchlastvertex);
1292 // use the element buffer if all triangles are consecutive
1293 if (m == batchfirsttriangle + batchnumtriangles)
1294 R_Shadow_RenderLighting(batchfirstvertex, batchlastvertex + 1 - batchfirstvertex, batchfirsttriangle, batchnumtriangles, ent->model->surfmesh.data_element3i, ent->model->surfmesh.data_element3s, ent->model->surfmesh.ebo3i, ent->model->surfmesh.ebo3s);
1296 R_Shadow_RenderLighting(batchfirstvertex, batchlastvertex + 1 - batchfirstvertex, 0, batchnumtriangles, batchelements, NULL, 0, 0);
1303 void R_ReplaceWorldTexture (void)
1308 const char *r, *newt;
1309 skinframe_t *skinframe;
1310 if (!r_refdef.scene.worldmodel)
1312 Con_Printf("There is no worldmodel\n");
1315 m = r_refdef.scene.worldmodel;
1319 Con_Print("r_replacemaptexture <texname> <newtexname> - replaces texture\n");
1320 Con_Print("r_replacemaptexture <texname> - switch back to default texture\n");
1323 if(!cl.islocalgame || !cl.worldmodel)
1325 Con_Print("This command works only in singleplayer\n");
1332 for(i=0,t=m->data_textures;i<m->num_textures;i++,t++)
1334 if(/*t->width && !strcasecmp(t->name, r)*/ matchpattern( t->name, r, true ) )
1336 if ((skinframe = R_SkinFrame_LoadExternal(newt, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PICMIP, true)))
1338 // t->skinframes[0] = skinframe;
1339 t->currentskinframe = skinframe;
1340 t->currentskinframe = skinframe;
1341 Con_Printf("%s replaced with %s\n", r, newt);
1345 Con_Printf("%s was not found\n", newt);
1353 void R_ListWorldTextures (void)
1358 if (!r_refdef.scene.worldmodel)
1360 Con_Printf("There is no worldmodel\n");
1363 m = r_refdef.scene.worldmodel;
1365 Con_Print("Worldmodel textures :\n");
1366 for(i=0,t=m->data_textures;i<m->num_textures;i++,t++)
1367 if (t->numskinframes)
1368 Con_Printf("%s\n", t->name);
1372 static void gl_surf_start(void)
1376 static void gl_surf_shutdown(void)
1380 static void gl_surf_newmap(void)
1385 void GL_Surf_Init(void)
1388 Cvar_RegisterVariable(&r_ambient);
1389 Cvar_RegisterVariable(&r_lockpvs);
1390 Cvar_RegisterVariable(&r_lockvisibility);
1391 Cvar_RegisterVariable(&r_useportalculling);
1392 Cvar_RegisterVariable(&r_q3bsp_renderskydepth);
1394 Cmd_AddCommand ("r_replacemaptexture", R_ReplaceWorldTexture, "override a map texture for testing purposes");
1395 Cmd_AddCommand ("r_listmaptextures", R_ListWorldTextures, "list all textures used by the current map");
1397 //R_RegisterModule("GL_Surf", gl_surf_start, gl_surf_shutdown, gl_surf_newmap);