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.
29 // note: model_shared.c sets up r_notexture, and r_surf_notexture
31 qbyte mod_q1bsp_novis[(MAX_MAP_LEAFS + 7)/ 8];
33 //cvar_t r_subdivide_size = {CVAR_SAVE, "r_subdivide_size", "128"};
34 cvar_t halflifebsp = {0, "halflifebsp", "0"};
35 cvar_t r_novis = {0, "r_novis", "0"};
36 cvar_t r_miplightmaps = {CVAR_SAVE, "r_miplightmaps", "0"};
37 cvar_t r_lightmaprgba = {0, "r_lightmaprgba", "1"};
38 cvar_t r_nosurftextures = {0, "r_nosurftextures", "0"};
39 cvar_t r_subdivisions_tolerance = {0, "r_subdivisions_tolerance", "4"};
40 cvar_t r_subdivisions_mintess = {0, "r_subdivisions_mintess", "1"};
41 cvar_t r_subdivisions_maxtess = {0, "r_subdivisions_maxtess", "1024"};
42 cvar_t r_subdivisions_maxvertices = {0, "r_subdivisions_maxvertices", "65536"};
43 cvar_t r_subdivisions_collision_tolerance = {0, "r_subdivisions_collision_tolerance", "15"};
44 cvar_t r_subdivisions_collision_mintess = {0, "r_subdivisions_collision_mintess", "1"};
45 cvar_t r_subdivisions_collision_maxtess = {0, "r_subdivisions_collision_maxtess", "1024"};
46 cvar_t r_subdivisions_collision_maxvertices = {0, "r_subdivisions_collision_maxvertices", "4225"};
47 cvar_t mod_q3bsp_curves_collisions = {0, "mod_q3bsp_curves_collisions", "1"};
48 cvar_t mod_q3bsp_optimizedtraceline = {0, "mod_q3bsp_optimizedtraceline", "1"};
49 cvar_t mod_q3bsp_debugtracebrush = {0, "mod_q3bsp_debugtracebrush", "0"};
51 static void Mod_Q1BSP_Collision_Init (void);
52 void Mod_BrushInit(void)
54 // Cvar_RegisterVariable(&r_subdivide_size);
55 Cvar_RegisterVariable(&halflifebsp);
56 Cvar_RegisterVariable(&r_novis);
57 Cvar_RegisterVariable(&r_miplightmaps);
58 Cvar_RegisterVariable(&r_lightmaprgba);
59 Cvar_RegisterVariable(&r_nosurftextures);
60 Cvar_RegisterVariable(&r_subdivisions_tolerance);
61 Cvar_RegisterVariable(&r_subdivisions_mintess);
62 Cvar_RegisterVariable(&r_subdivisions_maxtess);
63 Cvar_RegisterVariable(&r_subdivisions_maxvertices);
64 Cvar_RegisterVariable(&r_subdivisions_collision_tolerance);
65 Cvar_RegisterVariable(&r_subdivisions_collision_mintess);
66 Cvar_RegisterVariable(&r_subdivisions_collision_maxtess);
67 Cvar_RegisterVariable(&r_subdivisions_collision_maxvertices);
68 Cvar_RegisterVariable(&mod_q3bsp_curves_collisions);
69 Cvar_RegisterVariable(&mod_q3bsp_optimizedtraceline);
70 Cvar_RegisterVariable(&mod_q3bsp_debugtracebrush);
71 memset(mod_q1bsp_novis, 0xff, sizeof(mod_q1bsp_novis));
72 Mod_Q1BSP_Collision_Init();
75 static mleaf_t *Mod_Q1BSP_PointInLeaf(model_t *model, const vec3_t p)
82 Mod_CheckLoaded(model);
84 // LordHavoc: modified to start at first clip node,
85 // in other words: first node of the (sub)model
86 node = model->brushq1.nodes + model->brushq1.hulls[0].firstclipnode;
87 while (node->contents == 0)
88 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
90 return (mleaf_t *)node;
93 static void Mod_Q1BSP_AmbientSoundLevelsForPoint(model_t *model, const vec3_t p, qbyte *out, int outsize)
97 leaf = Mod_Q1BSP_PointInLeaf(model, p);
100 i = min(outsize, (int)sizeof(leaf->ambient_sound_level));
103 memcpy(out, leaf->ambient_sound_level, i);
109 memset(out, 0, outsize);
112 static int Mod_Q1BSP_BoxTouchingPVS(model_t *model, const qbyte *pvs, const vec3_t mins, const vec3_t maxs)
114 int clusterindex, side, nodestackindex = 0;
115 mnode_t *node, *nodestack[1024];
116 node = model->brushq1.nodes + model->brushq1.hulls[0].firstclipnode;
121 // node - recurse down the BSP tree
122 side = BoxOnPlaneSide(mins, maxs, node->plane) - 1;
125 // box is on one side of plane, take that path
126 node = node->children[side];
130 // box crosses plane, take one path and remember the other
131 if (nodestackindex < 1024)
132 nodestack[nodestackindex++] = node->children[0];
133 node = node->children[1];
138 // leaf - check cluster bit
139 clusterindex = ((mleaf_t *)node)->clusterindex;
140 if (CHECKPVSBIT(pvs, clusterindex))
142 // it is visible, return immediately with the news
147 // nothing to see here, try another path we didn't take earlier
148 if (nodestackindex == 0)
150 node = nodestack[--nodestackindex];
159 static int Mod_Q1BSP_PointContents(model_t *model, const vec3_t p)
164 return CONTENTS_EMPTY;
166 Mod_CheckLoaded(model);
168 // LordHavoc: modified to start at first clip node,
169 // in other words: first node of the (sub)model
170 node = model->brushq1.nodes + model->brushq1.hulls[0].firstclipnode;
171 while (node->contents == 0)
172 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
174 return ((mleaf_t *)node)->contents;
178 typedef struct findnonsolidlocationinfo_s
186 findnonsolidlocationinfo_t;
189 extern cvar_t samelevel;
191 static void Mod_Q1BSP_FindNonSolidLocation_r_Leaf(findnonsolidlocationinfo_t *info, mleaf_t *leaf)
193 int i, surfnum, k, *tri, *mark;
194 float dist, f, vert[3][3], edge[3][3], facenormal[3], edgenormal[3][3], point[3];
199 for (surfnum = 0, mark = leaf->firstmarksurface;surfnum < leaf->nummarksurfaces;surfnum++, mark++)
201 surf = info->model->brushq1.surfaces + *mark;
202 if (surf->flags & SURF_SOLIDCLIP)
205 VectorCopy(surf->plane->normal, surfnormal);
206 if (surf->flags & SURF_PLANEBACK)
207 VectorNegate(surfnormal, surfnormal);
209 for (k = 0;k < surf->mesh.num_triangles;k++)
211 tri = surf->mesh.data_element3i + k * 3;
212 VectorCopy((surf->mesh.data_vertex3f + tri[0] * 3), vert[0]);
213 VectorCopy((surf->mesh.data_vertex3f + tri[1] * 3), vert[1]);
214 VectorCopy((surf->mesh.data_vertex3f + tri[2] * 3), vert[2]);
215 VectorSubtract(vert[1], vert[0], edge[0]);
216 VectorSubtract(vert[2], vert[1], edge[1]);
217 CrossProduct(edge[1], edge[0], facenormal);
218 if (facenormal[0] || facenormal[1] || facenormal[2])
220 VectorNormalize(facenormal);
222 if (VectorDistance(facenormal, surfnormal) > 0.01f)
223 Con_Printf("a2! %f %f %f != %f %f %f\n", facenormal[0], facenormal[1], facenormal[2], surfnormal[0], surfnormal[1], surfnormal[2]);
225 f = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
226 if (f <= info->bestdist && f >= -info->bestdist)
228 VectorSubtract(vert[0], vert[2], edge[2]);
229 VectorNormalize(edge[0]);
230 VectorNormalize(edge[1]);
231 VectorNormalize(edge[2]);
232 CrossProduct(facenormal, edge[0], edgenormal[0]);
233 CrossProduct(facenormal, edge[1], edgenormal[1]);
234 CrossProduct(facenormal, edge[2], edgenormal[2]);
236 if (samelevel.integer & 1)
237 VectorNegate(edgenormal[0], edgenormal[0]);
238 if (samelevel.integer & 2)
239 VectorNegate(edgenormal[1], edgenormal[1]);
240 if (samelevel.integer & 4)
241 VectorNegate(edgenormal[2], edgenormal[2]);
242 for (i = 0;i < 3;i++)
243 if (DotProduct(vert[0], edgenormal[i]) > DotProduct(vert[i], edgenormal[i]) + 0.1f
244 || DotProduct(vert[1], edgenormal[i]) > DotProduct(vert[i], edgenormal[i]) + 0.1f
245 || DotProduct(vert[2], edgenormal[i]) > DotProduct(vert[i], edgenormal[i]) + 0.1f)
246 Con_Printf("a! %i : %f %f %f (%f %f %f)\n", i, edgenormal[i][0], edgenormal[i][1], edgenormal[i][2], facenormal[0], facenormal[1], facenormal[2]);
249 if (DotProduct(info->center, edgenormal[0]) < DotProduct(vert[0], edgenormal[0])
250 && DotProduct(info->center, edgenormal[1]) < DotProduct(vert[1], edgenormal[1])
251 && DotProduct(info->center, edgenormal[2]) < DotProduct(vert[2], edgenormal[2]))
253 // we got lucky, the center is within the face
254 dist = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
258 if (info->bestdist > dist)
260 info->bestdist = dist;
261 VectorScale(facenormal, (info->radius - -dist), info->nudge);
266 if (info->bestdist > dist)
268 info->bestdist = dist;
269 VectorScale(facenormal, (info->radius - dist), info->nudge);
275 // check which edge or vertex the center is nearest
276 for (i = 0;i < 3;i++)
278 f = DotProduct(info->center, edge[i]);
279 if (f >= DotProduct(vert[0], edge[i])
280 && f <= DotProduct(vert[1], edge[i]))
283 VectorMA(info->center, -f, edge[i], point);
284 dist = sqrt(DotProduct(point, point));
285 if (info->bestdist > dist)
287 info->bestdist = dist;
288 VectorScale(point, (info->radius / dist), info->nudge);
290 // skip both vertex checks
291 // (both are further away than this edge)
296 // not on edge, check first vertex of edge
297 VectorSubtract(info->center, vert[i], point);
298 dist = sqrt(DotProduct(point, point));
299 if (info->bestdist > dist)
301 info->bestdist = dist;
302 VectorScale(point, (info->radius / dist), info->nudge);
314 static void Mod_Q1BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, mnode_t *node)
318 if (((mleaf_t *)node)->nummarksurfaces)
319 Mod_Q1BSP_FindNonSolidLocation_r_Leaf(info, (mleaf_t *)node);
323 float f = PlaneDiff(info->center, node->plane);
324 if (f >= -info->bestdist)
325 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[0]);
326 if (f <= info->bestdist)
327 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[1]);
331 static void Mod_Q1BSP_FindNonSolidLocation(model_t *model, const vec3_t in, vec3_t out, float radius)
334 findnonsolidlocationinfo_t info;
340 VectorCopy(in, info.center);
341 info.radius = radius;
346 VectorClear(info.nudge);
347 info.bestdist = radius;
348 Mod_Q1BSP_FindNonSolidLocation_r(&info, model->brushq1.nodes + model->brushq1.hulls[0].firstclipnode);
349 VectorAdd(info.center, info.nudge, info.center);
351 while (info.bestdist < radius && ++i < 10);
352 VectorCopy(info.center, out);
355 int Mod_Q1BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
357 switch(nativecontents)
362 return SUPERCONTENTS_SOLID;
364 return SUPERCONTENTS_WATER;
366 return SUPERCONTENTS_SLIME;
368 return SUPERCONTENTS_LAVA;
370 return SUPERCONTENTS_SKY;
375 int Mod_Q1BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
377 if (supercontents & SUPERCONTENTS_SOLID)
378 return CONTENTS_SOLID;
379 if (supercontents & SUPERCONTENTS_SKY)
381 if (supercontents & SUPERCONTENTS_LAVA)
382 return CONTENTS_LAVA;
383 if (supercontents & SUPERCONTENTS_SLIME)
384 return CONTENTS_SLIME;
385 if (supercontents & SUPERCONTENTS_WATER)
386 return CONTENTS_WATER;
387 return CONTENTS_EMPTY;
392 // the hull we're tracing through
395 // the trace structure to fill in
398 // start, end, and end - start (in model space)
403 RecursiveHullCheckTraceInfo_t;
405 // 1/32 epsilon to keep floating point happy
406 #define DIST_EPSILON (0.03125)
408 #define HULLCHECKSTATE_EMPTY 0
409 #define HULLCHECKSTATE_SOLID 1
410 #define HULLCHECKSTATE_DONE 2
412 static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int num, double p1f, double p2f, double p1[3], double p2[3])
414 // status variables, these don't need to be saved on the stack when
415 // recursing... but are because this should be thread-safe
416 // (note: tracing against a bbox is not thread-safe, yet)
421 // variables that need to be stored on the stack when recursing
426 // LordHavoc: a goto! everyone flee in terror... :)
431 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
432 if (!t->trace->startfound)
434 t->trace->startfound = true;
435 t->trace->startsupercontents |= num;
437 if (num & SUPERCONTENTS_LIQUIDSMASK)
438 t->trace->inwater = true;
440 t->trace->inopen = true;
441 if (num & t->trace->hitsupercontentsmask)
443 // if the first leaf is solid, set startsolid
444 if (t->trace->allsolid)
445 t->trace->startsolid = true;
446 #if COLLISIONPARANOID >= 3
449 return HULLCHECKSTATE_SOLID;
453 t->trace->allsolid = false;
454 #if COLLISIONPARANOID >= 3
457 return HULLCHECKSTATE_EMPTY;
461 // find the point distances
462 node = t->hull->clipnodes + num;
464 plane = t->hull->planes + node->planenum;
467 t1 = p1[plane->type] - plane->dist;
468 t2 = p2[plane->type] - plane->dist;
472 t1 = DotProduct (plane->normal, p1) - plane->dist;
473 t2 = DotProduct (plane->normal, p2) - plane->dist;
480 #if COLLISIONPARANOID >= 3
483 num = node->children[1];
492 #if COLLISIONPARANOID >= 3
495 num = node->children[0];
501 // the line intersects, find intersection point
502 // LordHavoc: this uses the original trace for maximum accuracy
503 #if COLLISIONPARANOID >= 3
508 t1 = t->start[plane->type] - plane->dist;
509 t2 = t->end[plane->type] - plane->dist;
513 t1 = DotProduct (plane->normal, t->start) - plane->dist;
514 t2 = DotProduct (plane->normal, t->end) - plane->dist;
517 midf = t1 / (t1 - t2);
518 midf = bound(p1f, midf, p2f);
519 VectorMA(t->start, midf, t->dist, mid);
521 // recurse both sides, front side first
522 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side], p1f, midf, p1, mid);
523 // if this side is not empty, return what it is (solid or done)
524 if (ret != HULLCHECKSTATE_EMPTY)
527 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side ^ 1], midf, p2f, mid, p2);
528 // if other side is not solid, return what it is (empty or done)
529 if (ret != HULLCHECKSTATE_SOLID)
532 // front is air and back is solid, this is the impact point...
535 t->trace->plane.dist = -plane->dist;
536 VectorNegate (plane->normal, t->trace->plane.normal);
540 t->trace->plane.dist = plane->dist;
541 VectorCopy (plane->normal, t->trace->plane.normal);
544 // calculate the true fraction
545 t1 = DotProduct(t->trace->plane.normal, t->start) - t->trace->plane.dist;
546 t2 = DotProduct(t->trace->plane.normal, t->end) - t->trace->plane.dist;
547 midf = t1 / (t1 - t2);
548 t->trace->realfraction = bound(0, midf, 1);
550 // calculate the return fraction which is nudged off the surface a bit
551 midf = (t1 - DIST_EPSILON) / (t1 - t2);
552 t->trace->fraction = bound(0, midf, 1);
554 #if COLLISIONPARANOID >= 3
557 return HULLCHECKSTATE_DONE;
560 #if COLLISIONPARANOID < 2
561 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
564 num = t->hull->clipnodes[num].children[(t->hull->planes[t->hull->clipnodes[num].planenum].type < 3 ? t->start[t->hull->planes[t->hull->clipnodes[num].planenum].type] : DotProduct(t->hull->planes[t->hull->clipnodes[num].planenum].normal, t->start)) < t->hull->planes[t->hull->clipnodes[num].planenum].dist];
565 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
566 t->trace->startsupercontents |= num;
567 if (num & SUPERCONTENTS_LIQUIDSMASK)
568 t->trace->inwater = true;
570 t->trace->inopen = true;
571 if (num & t->trace->hitsupercontentsmask)
573 t->trace->allsolid = t->trace->startsolid = true;
574 return HULLCHECKSTATE_SOLID;
578 t->trace->allsolid = t->trace->startsolid = false;
579 return HULLCHECKSTATE_EMPTY;
584 static void Mod_Q1BSP_TraceBox(struct model_s *model, int frame, trace_t *trace, const vec3_t boxstartmins, const vec3_t boxstartmaxs, const vec3_t boxendmins, const vec3_t boxendmaxs, int hitsupercontentsmask)
586 // this function currently only supports same size start and end
588 RecursiveHullCheckTraceInfo_t rhc;
590 memset(&rhc, 0, sizeof(rhc));
591 memset(trace, 0, sizeof(trace_t));
593 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
594 rhc.trace->fraction = 1;
595 rhc.trace->realfraction = 1;
596 rhc.trace->allsolid = true;
597 VectorSubtract(boxstartmaxs, boxstartmins, boxsize);
599 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
600 else if (model->brush.ishlbsp)
602 // LordHavoc: this has to have a minor tolerance (the .1) because of
603 // minor float precision errors from the box being transformed around
604 if (boxsize[0] < 32.1)
606 if (boxsize[2] < 54) // pick the nearest of 36 or 72
607 rhc.hull = &model->brushq1.hulls[3]; // 32x32x36
609 rhc.hull = &model->brushq1.hulls[1]; // 32x32x72
612 rhc.hull = &model->brushq1.hulls[2]; // 64x64x64
616 // LordHavoc: this has to have a minor tolerance (the .1) because of
617 // minor float precision errors from the box being transformed around
618 if (boxsize[0] < 32.1)
619 rhc.hull = &model->brushq1.hulls[1]; // 32x32x56
621 rhc.hull = &model->brushq1.hulls[2]; // 64x64x88
623 VectorSubtract(boxstartmins, rhc.hull->clip_mins, rhc.start);
624 VectorSubtract(boxendmins, rhc.hull->clip_mins, rhc.end);
625 VectorSubtract(rhc.end, rhc.start, rhc.dist);
626 #if COLLISIONPARANOID >= 2
627 Con_Printf("t(%f %f %f,%f %f %f,%i %f %f %f)", rhc.start[0], rhc.start[1], rhc.start[2], rhc.end[0], rhc.end[1], rhc.end[2], rhc.hull - model->brushq1.hulls, rhc.hull->clip_mins[0], rhc.hull->clip_mins[1], rhc.hull->clip_mins[2]);
628 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
631 if (DotProduct(rhc.dist, rhc.dist))
632 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
634 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
638 static hull_t box_hull;
639 static dclipnode_t box_clipnodes[6];
640 static mplane_t box_planes[6];
642 static void Mod_Q1BSP_Collision_Init (void)
647 //Set up the planes and clipnodes so that the six floats of a bounding box
648 //can just be stored out and get a proper hull_t structure.
650 box_hull.clipnodes = box_clipnodes;
651 box_hull.planes = box_planes;
652 box_hull.firstclipnode = 0;
653 box_hull.lastclipnode = 5;
655 for (i = 0;i < 6;i++)
657 box_clipnodes[i].planenum = i;
661 box_clipnodes[i].children[side] = CONTENTS_EMPTY;
663 box_clipnodes[i].children[side^1] = i + 1;
665 box_clipnodes[i].children[side^1] = CONTENTS_SOLID;
667 box_planes[i].type = i>>1;
668 box_planes[i].normal[i>>1] = 1;
672 void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int hitsupercontentsmask, int boxsupercontents)
676 colplanef_t cbox_planes[6];
677 cbox.supercontents = boxsupercontents;
680 cbox.numtriangles = 0;
681 cbox.planes = cbox_planes;
683 cbox.elements = NULL;
691 cbox_planes[0].normal[0] = 1;cbox_planes[0].normal[1] = 0;cbox_planes[0].normal[2] = 0;cbox_planes[0].dist = cmaxs[0] - mins[0];
692 cbox_planes[1].normal[0] = -1;cbox_planes[1].normal[1] = 0;cbox_planes[1].normal[2] = 0;cbox_planes[1].dist = maxs[0] - cmins[0];
693 cbox_planes[2].normal[0] = 0;cbox_planes[2].normal[1] = 1;cbox_planes[2].normal[2] = 0;cbox_planes[2].dist = cmaxs[1] - mins[1];
694 cbox_planes[3].normal[0] = 0;cbox_planes[3].normal[1] = -1;cbox_planes[3].normal[2] = 0;cbox_planes[3].dist = maxs[1] - cmins[1];
695 cbox_planes[4].normal[0] = 0;cbox_planes[4].normal[1] = 0;cbox_planes[4].normal[2] = 1;cbox_planes[4].dist = cmaxs[2] - mins[2];
696 cbox_planes[5].normal[0] = 0;cbox_planes[5].normal[1] = 0;cbox_planes[5].normal[2] = -1;cbox_planes[5].dist = maxs[2] - cmins[2];
697 memset(trace, 0, sizeof(trace_t));
698 trace->hitsupercontentsmask = hitsupercontentsmask;
700 trace->realfraction = 1;
701 Collision_TraceLineBrushFloat(trace, start, end, &cbox, &cbox);
703 RecursiveHullCheckTraceInfo_t rhc;
704 // fill in a default trace
705 memset(&rhc, 0, sizeof(rhc));
706 memset(trace, 0, sizeof(trace_t));
707 //To keep everything totally uniform, bounding boxes are turned into small
708 //BSP trees instead of being compared directly.
709 // create a temp hull from bounding box sizes
710 box_planes[0].dist = cmaxs[0] - mins[0];
711 box_planes[1].dist = cmins[0] - maxs[0];
712 box_planes[2].dist = cmaxs[1] - mins[1];
713 box_planes[3].dist = cmins[1] - maxs[1];
714 box_planes[4].dist = cmaxs[2] - mins[2];
715 box_planes[5].dist = cmins[2] - maxs[2];
716 #if COLLISIONPARANOID >= 3
717 Con_Printf("box_planes %f:%f %f:%f %f:%f\ncbox %f %f %f:%f %f %f\nbox %f %f %f:%f %f %f\n", box_planes[0].dist, box_planes[1].dist, box_planes[2].dist, box_planes[3].dist, box_planes[4].dist, box_planes[5].dist, cmins[0], cmins[1], cmins[2], cmaxs[0], cmaxs[1], cmaxs[2], mins[0], mins[1], mins[2], maxs[0], maxs[1], maxs[2]);
719 // trace a line through the generated clipping hull
720 //rhc.boxsupercontents = boxsupercontents;
721 rhc.hull = &box_hull;
723 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
724 rhc.trace->fraction = 1;
725 rhc.trace->realfraction = 1;
726 rhc.trace->allsolid = true;
727 VectorCopy(start, rhc.start);
728 VectorCopy(end, rhc.end);
729 VectorSubtract(rhc.end, rhc.start, rhc.dist);
730 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
731 //VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
732 if (rhc.trace->startsupercontents)
733 rhc.trace->startsupercontents = boxsupercontents;
737 static int Mod_Q1BSP_LightPoint_RecursiveBSPNode(vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const mnode_t *node, float x, float y, float startz, float endz)
739 int side, distz = endz - startz;
744 if (node->contents < 0)
745 return false; // didn't hit anything
747 switch (node->plane->type)
750 node = node->children[x < node->plane->dist];
753 node = node->children[y < node->plane->dist];
756 side = startz < node->plane->dist;
757 if ((endz < node->plane->dist) == side)
759 node = node->children[side];
762 // found an intersection
763 mid = node->plane->dist;
766 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
767 front += startz * node->plane->normal[2];
768 back += endz * node->plane->normal[2];
769 side = front < node->plane->dist;
770 if ((back < node->plane->dist) == side)
772 node = node->children[side];
775 // found an intersection
776 mid = startz + distz * (front - node->plane->dist) / (front - back);
780 // go down front side
781 if (node->children[side]->contents >= 0 && Mod_Q1BSP_LightPoint_RecursiveBSPNode(ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
782 return true; // hit something
785 // check for impact on this node
786 if (node->numsurfaces)
791 surf = r_refdef.worldmodel->brushq1.surfaces + node->firstsurface;
792 for (i = 0;i < node->numsurfaces;i++, surf++)
794 if (!(surf->flags & SURF_LIGHTMAP) || !surf->samples)
795 continue; // no lightmaps
797 ds = (int) (x * surf->texinfo->vecs[0][0] + y * surf->texinfo->vecs[0][1] + mid * surf->texinfo->vecs[0][2] + surf->texinfo->vecs[0][3]) - surf->texturemins[0];
798 dt = (int) (x * surf->texinfo->vecs[1][0] + y * surf->texinfo->vecs[1][1] + mid * surf->texinfo->vecs[1][2] + surf->texinfo->vecs[1][3]) - surf->texturemins[1];
800 if (ds >= 0 && ds < surf->extents[0] && dt >= 0 && dt < surf->extents[1])
803 int lmwidth, lmheight, maps, line3, size3, dsfrac = ds & 15, dtfrac = dt & 15, scale = 0, r00 = 0, g00 = 0, b00 = 0, r01 = 0, g01 = 0, b01 = 0, r10 = 0, g10 = 0, b10 = 0, r11 = 0, g11 = 0, b11 = 0;
804 lmwidth = ((surf->extents[0]>>4)+1);
805 lmheight = ((surf->extents[1]>>4)+1);
806 line3 = lmwidth * 3; // LordHavoc: *3 for colored lighting
807 size3 = lmwidth * lmheight * 3; // LordHavoc: *3 for colored lighting
809 lightmap = surf->samples + ((dt>>4) * lmwidth + (ds>>4))*3; // LordHavoc: *3 for colored lighting
811 for (maps = 0;maps < MAXLIGHTMAPS && surf->styles[maps] != 255;maps++)
813 scale = d_lightstylevalue[surf->styles[maps]];
814 r00 += lightmap[ 0] * scale;g00 += lightmap[ 1] * scale;b00 += lightmap[ 2] * scale;
815 r01 += lightmap[ 3] * scale;g01 += lightmap[ 4] * scale;b01 += lightmap[ 5] * scale;
816 r10 += lightmap[line3+0] * scale;g10 += lightmap[line3+1] * scale;b10 += lightmap[line3+2] * scale;
817 r11 += lightmap[line3+3] * scale;g11 += lightmap[line3+4] * scale;b11 += lightmap[line3+5] * scale;
822 LordHavoc: here's the readable version of the interpolation
823 code, not quite as easy for the compiler to optimize...
825 dsfrac is the X position in the lightmap pixel, * 16
826 dtfrac is the Y position in the lightmap pixel, * 16
827 r00 is top left corner, r01 is top right corner
828 r10 is bottom left corner, r11 is bottom right corner
829 g and b are the same layout.
830 r0 and r1 are the top and bottom intermediate results
832 first we interpolate the top two points, to get the top
835 r0 = (((r01-r00) * dsfrac) >> 4) + r00;
836 g0 = (((g01-g00) * dsfrac) >> 4) + g00;
837 b0 = (((b01-b00) * dsfrac) >> 4) + b00;
839 then we interpolate the bottom two points, to get the
842 r1 = (((r11-r10) * dsfrac) >> 4) + r10;
843 g1 = (((g11-g10) * dsfrac) >> 4) + g10;
844 b1 = (((b11-b10) * dsfrac) >> 4) + b10;
846 then we interpolate the top and bottom samples to get the
847 middle sample (the one which was requested)
849 r = (((r1-r0) * dtfrac) >> 4) + r0;
850 g = (((g1-g0) * dtfrac) >> 4) + g0;
851 b = (((b1-b0) * dtfrac) >> 4) + b0;
854 ambientcolor[0] += (float) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)) * (1.0f / 32768.0f);
855 ambientcolor[1] += (float) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)) * (1.0f / 32768.0f);
856 ambientcolor[2] += (float) ((((((((b11-b10) * dsfrac) >> 4) + b10)-((((b01-b00) * dsfrac) >> 4) + b00)) * dtfrac) >> 4) + ((((b01-b00) * dsfrac) >> 4) + b00)) * (1.0f / 32768.0f);
857 return true; // success
863 node = node->children[side ^ 1];
865 distz = endz - startz;
870 void Mod_Q1BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
872 Mod_Q1BSP_LightPoint_RecursiveBSPNode(ambientcolor, diffusecolor, diffusenormal, model->brushq1.nodes + model->brushq1.hulls[0].firstclipnode, p[0], p[1], p[2], p[2] - 65536);
875 static void Mod_Q1BSP_DecompressVis(const qbyte *in, const qbyte *inend, qbyte *out, qbyte *outend)
878 qbyte *outstart = out;
883 Con_Printf("Mod_Q1BSP_DecompressVis: input underrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
893 Con_Printf("Mod_Q1BSP_DecompressVis: input underrun (during zero-run) on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
896 for (c = *in++;c > 0;c--)
900 Con_Printf("Mod_Q1BSP_DecompressVis: output overrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
913 A sky texture is 256*128, with the right side being a masked overlay
916 void R_Q1BSP_LoadSplitSky (qbyte *src, int width, int height, int bytesperpixel)
919 unsigned solidpixels[128*128], alphapixels[128*128];
921 // if sky isn't the right size, just use it as a solid layer
922 if (width != 256 || height != 128)
924 loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", width, height, src, bytesperpixel == 4 ? TEXTYPE_RGBA : TEXTYPE_PALETTE, TEXF_PRECACHE, bytesperpixel == 1 ? palette_complete : NULL);
925 loadmodel->brush.alphaskytexture = NULL;;
929 if (bytesperpixel == 4)
931 for (i = 0;i < 128;i++)
933 for (j = 0;j < 128;j++)
935 solidpixels[(i*128) + j] = ((unsigned *)src)[i*256+j+128];
936 alphapixels[(i*128) + j] = ((unsigned *)src)[i*256+j];
942 // make an average value for the back to avoid
943 // a fringe on the top level
952 for (i = 0;i < 128;i++)
954 for (j = 0;j < 128;j++)
956 rgba.i = palette_complete[src[i*256 + j + 128]];
962 rgba.b[0] = r/(128*128);
963 rgba.b[1] = g/(128*128);
964 rgba.b[2] = b/(128*128);
966 for (i = 0;i < 128;i++)
968 for (j = 0;j < 128;j++)
970 solidpixels[(i*128) + j] = palette_complete[src[i*256 + j + 128]];
971 alphapixels[(i*128) + j] = (p = src[i*256 + j]) ? palette_complete[p] : rgba.i;
976 loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", 128, 128, (qbyte *) solidpixels, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
977 loadmodel->brush.alphaskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_alphatexture", 128, 128, (qbyte *) alphapixels, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
980 static void Mod_Q1BSP_LoadTextures(lump_t *l)
982 int i, j, k, num, max, altmax, mtwidth, mtheight, *dofs, incomplete;
984 texture_t *tx, *tx2, *anims[10], *altanims[10];
986 qbyte *data, *mtdata;
989 loadmodel->brushq1.textures = NULL;
991 // add two slots for notexture walls and notexture liquids
994 m = (dmiptexlump_t *)(mod_base + l->fileofs);
995 m->nummiptex = LittleLong (m->nummiptex);
996 loadmodel->brushq1.numtextures = m->nummiptex + 2;
1001 loadmodel->brushq1.numtextures = 2;
1004 loadmodel->brushq1.textures = Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numtextures * sizeof(texture_t));
1006 // fill out all slots with notexture
1007 for (i = 0, tx = loadmodel->brushq1.textures;i < loadmodel->brushq1.numtextures;i++, tx++)
1010 strcpy(tx->name, "NO TEXTURE FOUND");
1013 tx->skin.base = r_notexture;
1014 if (i == loadmodel->brushq1.numtextures - 1)
1015 tx->flags = SURF_DRAWTURB | SURF_LIGHTBOTHSIDES;
1017 tx->flags = SURF_LIGHTMAP | SURF_SOLIDCLIP;
1018 tx->currentframe = tx;
1024 // just to work around bounds checking when debugging with it (array index out of bounds error thing)
1026 // LordHavoc: mostly rewritten map texture loader
1027 for (i = 0;i < m->nummiptex;i++)
1029 dofs[i] = LittleLong(dofs[i]);
1030 if (dofs[i] == -1 || r_nosurftextures.integer)
1032 dmiptex = (miptex_t *)((qbyte *)m + dofs[i]);
1034 // make sure name is no more than 15 characters
1035 for (j = 0;dmiptex->name[j] && j < 15;j++)
1036 name[j] = dmiptex->name[j];
1039 mtwidth = LittleLong(dmiptex->width);
1040 mtheight = LittleLong(dmiptex->height);
1042 j = LittleLong(dmiptex->offsets[0]);
1046 if (j < 40 || j + mtwidth * mtheight > l->filelen)
1048 Con_Printf("Texture \"%s\" in \"%s\"is corrupt or incomplete\n", dmiptex->name, loadmodel->name);
1051 mtdata = (qbyte *)dmiptex + j;
1054 if ((mtwidth & 15) || (mtheight & 15))
1055 Con_Printf("warning: texture \"%s\" in \"%s\" is not 16 aligned\n", dmiptex->name, loadmodel->name);
1057 // LordHavoc: force all names to lowercase
1058 for (j = 0;name[j];j++)
1059 if (name[j] >= 'A' && name[j] <= 'Z')
1060 name[j] += 'a' - 'A';
1062 tx = loadmodel->brushq1.textures + i;
1063 strcpy(tx->name, name);
1064 tx->width = mtwidth;
1065 tx->height = mtheight;
1069 sprintf(tx->name, "unnamed%i", i);
1070 Con_Printf("warning: unnamed texture in %s, renaming to %s\n", loadmodel->name, tx->name);
1073 // LordHavoc: HL sky textures are entirely different than quake
1074 if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == 256 && mtheight == 128)
1076 if (loadmodel->isworldmodel)
1078 data = loadimagepixels(tx->name, false, 0, 0);
1081 R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1084 else if (mtdata != NULL)
1085 R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1090 if (!Mod_LoadSkinFrame(&tx->skin, tx->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, true, true))
1092 // did not find external texture, load it from the bsp or wad3
1093 if (loadmodel->brush.ishlbsp)
1095 // internal texture overrides wad
1096 qbyte *pixels, *freepixels, *fogpixels;
1097 pixels = freepixels = NULL;
1099 pixels = W_ConvertWAD3Texture(dmiptex);
1101 pixels = freepixels = W_GetTexture(tx->name);
1104 tx->width = image_width;
1105 tx->height = image_height;
1106 tx->skin.base = tx->skin.merged = R_LoadTexture2D(loadmodel->texturepool, tx->name, image_width, image_height, pixels, TEXTYPE_RGBA, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, NULL);
1107 if (Image_CheckAlpha(pixels, image_width * image_height, true))
1109 fogpixels = Mem_Alloc(tempmempool, image_width * image_height * 4);
1110 for (j = 0;j < image_width * image_height * 4;j += 4)
1112 fogpixels[j + 0] = 255;
1113 fogpixels[j + 1] = 255;
1114 fogpixels[j + 2] = 255;
1115 fogpixels[j + 3] = pixels[j + 3];
1117 tx->skin.fog = R_LoadTexture2D(loadmodel->texturepool, tx->name, image_width, image_height, pixels, TEXTYPE_RGBA, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, NULL);
1118 Mem_Free(fogpixels);
1122 Mem_Free(freepixels);
1124 else if (mtdata) // texture included
1125 Mod_LoadSkinFrame_Internal(&tx->skin, tx->name, TEXF_MIPMAP | TEXF_PRECACHE | TEXF_PICMIP, false, true, tx->name[0] != '*' && r_fullbrights.integer, mtdata, tx->width, tx->height);
1128 if (tx->skin.base == NULL)
1133 tx->skin.base = r_notexture;
1136 if (tx->name[0] == '*')
1138 // turb does not block movement
1139 tx->flags = SURF_DRAWTURB | SURF_LIGHTBOTHSIDES;
1140 // LordHavoc: some turbulent textures should be fullbright and solid
1141 if (!strncmp(tx->name,"*lava",5)
1142 || !strncmp(tx->name,"*teleport",9)
1143 || !strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1144 tx->flags |= SURF_DRAWFULLBRIGHT | SURF_DRAWNOALPHA;
1146 tx->flags |= SURF_WATERALPHA;
1148 else if (tx->name[0] == 's' && tx->name[1] == 'k' && tx->name[2] == 'y')
1149 tx->flags = SURF_DRAWSKY | SURF_SOLIDCLIP;
1151 tx->flags = SURF_LIGHTMAP | SURF_SOLIDCLIP;
1153 // start out with no animation
1154 tx->currentframe = tx;
1157 // sequence the animations
1158 for (i = 0;i < m->nummiptex;i++)
1160 tx = loadmodel->brushq1.textures + i;
1161 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1163 if (tx->anim_total[0] || tx->anim_total[1])
1164 continue; // already sequenced
1166 // find the number of frames in the animation
1167 memset(anims, 0, sizeof(anims));
1168 memset(altanims, 0, sizeof(altanims));
1170 for (j = i;j < m->nummiptex;j++)
1172 tx2 = loadmodel->brushq1.textures + j;
1173 if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
1177 if (num >= '0' && num <= '9')
1178 anims[num - '0'] = tx2;
1179 else if (num >= 'a' && num <= 'j')
1180 altanims[num - 'a'] = tx2;
1182 Con_Printf("Bad animating texture %s\n", tx->name);
1186 for (j = 0;j < 10;j++)
1193 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
1196 for (j = 0;j < max;j++)
1200 Con_Printf("Missing frame %i of %s\n", j, tx->name);
1204 for (j = 0;j < altmax;j++)
1208 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
1217 // if there is no alternate animation, duplicate the primary
1218 // animation into the alternate
1220 for (k = 0;k < 10;k++)
1221 altanims[k] = anims[k];
1224 // link together the primary animation
1225 for (j = 0;j < max;j++)
1228 tx2->animated = true;
1229 tx2->anim_total[0] = max;
1230 tx2->anim_total[1] = altmax;
1231 for (k = 0;k < 10;k++)
1233 tx2->anim_frames[0][k] = anims[k];
1234 tx2->anim_frames[1][k] = altanims[k];
1238 // if there really is an alternate anim...
1239 if (anims[0] != altanims[0])
1241 // link together the alternate animation
1242 for (j = 0;j < altmax;j++)
1245 tx2->animated = true;
1246 // the primary/alternate are reversed here
1247 tx2->anim_total[0] = altmax;
1248 tx2->anim_total[1] = max;
1249 for (k = 0;k < 10;k++)
1251 tx2->anim_frames[0][k] = altanims[k];
1252 tx2->anim_frames[1][k] = anims[k];
1259 static void Mod_Q1BSP_LoadLighting(lump_t *l)
1262 qbyte *in, *out, *data, d;
1263 char litfilename[1024];
1264 loadmodel->brushq1.lightdata = NULL;
1265 if (loadmodel->brush.ishlbsp) // LordHavoc: load the colored lighting data straight
1267 loadmodel->brushq1.lightdata = Mem_Alloc(loadmodel->mempool, l->filelen);
1268 for (i=0; i<l->filelen; i++)
1269 loadmodel->brushq1.lightdata[i] = mod_base[l->fileofs+i] >>= 1;
1271 else // LordHavoc: bsp version 29 (normal white lighting)
1273 // LordHavoc: hope is not lost yet, check for a .lit file to load
1274 strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
1275 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
1276 strlcat (litfilename, ".lit", sizeof (litfilename));
1277 data = (qbyte*) FS_LoadFile(litfilename, tempmempool, false);
1280 if (fs_filesize > 8 && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1282 i = LittleLong(((int *)data)[1]);
1285 Con_DPrintf("loaded %s\n", litfilename);
1286 loadmodel->brushq1.lightdata = Mem_Alloc(loadmodel->mempool, fs_filesize - 8);
1287 memcpy(loadmodel->brushq1.lightdata, data + 8, fs_filesize - 8);
1293 Con_Printf("Unknown .lit file version (%d)\n", i);
1299 if (fs_filesize == 8)
1300 Con_Print("Empty .lit file, ignoring\n");
1302 Con_Print("Corrupt .lit file (old version?), ignoring\n");
1306 // LordHavoc: oh well, expand the white lighting data
1309 loadmodel->brushq1.lightdata = Mem_Alloc(loadmodel->mempool, l->filelen*3);
1310 in = loadmodel->brushq1.lightdata + l->filelen*2; // place the file at the end, so it will not be overwritten until the very last write
1311 out = loadmodel->brushq1.lightdata;
1312 memcpy(in, mod_base + l->fileofs, l->filelen);
1313 for (i = 0;i < l->filelen;i++)
1323 static void Mod_Q1BSP_LoadLightList(void)
1325 int a, n, numlights;
1326 char tempchar, *s, *t, *lightsstring, lightsfilename[1024];
1329 strlcpy (lightsfilename, loadmodel->name, sizeof (lightsfilename));
1330 FS_StripExtension (lightsfilename, lightsfilename, sizeof(lightsfilename));
1331 strlcat (lightsfilename, ".lights", sizeof (lightsfilename));
1332 s = lightsstring = (char *) FS_LoadFile(lightsfilename, tempmempool, false);
1338 while (*s && *s != '\n' && *s != '\r')
1342 Mem_Free(lightsstring);
1343 Con_Printf("lights file must end with a newline\n");
1349 loadmodel->brushq1.lights = Mem_Alloc(loadmodel->mempool, numlights * sizeof(mlight_t));
1352 while (*s && n < numlights)
1355 while (*s && *s != '\n' && *s != '\r')
1359 Con_Printf("misparsed lights file!\n");
1362 e = loadmodel->brushq1.lights + n;
1365 a = sscanf(t, "%f %f %f %f %f %f %f %f %f %f %f %f %f %d", &e->origin[0], &e->origin[1], &e->origin[2], &e->falloff, &e->light[0], &e->light[1], &e->light[2], &e->subtract, &e->spotdir[0], &e->spotdir[1], &e->spotdir[2], &e->spotcone, &e->distbias, &e->style);
1369 Con_Printf("invalid lights file, found %d parameters on line %i, should be 14 parameters (origin[0] origin[1] origin[2] falloff light[0] light[1] light[2] subtract spotdir[0] spotdir[1] spotdir[2] spotcone distancebias style)\n", a, n + 1);
1379 Con_Printf("misparsed lights file!\n");
1380 loadmodel->brushq1.numlights = numlights;
1381 Mem_Free(lightsstring);
1385 static void Mod_Q1BSP_LoadVisibility(lump_t *l)
1387 loadmodel->brushq1.num_compressedpvs = 0;
1388 loadmodel->brushq1.data_compressedpvs = NULL;
1391 loadmodel->brushq1.num_compressedpvs = l->filelen;
1392 loadmodel->brushq1.data_compressedpvs = Mem_Alloc(loadmodel->mempool, l->filelen);
1393 memcpy(loadmodel->brushq1.data_compressedpvs, mod_base + l->fileofs, l->filelen);
1396 // used only for HalfLife maps
1397 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
1399 char key[128], value[4096];
1404 if (!COM_ParseToken(&data, false))
1406 if (com_token[0] != '{')
1410 if (!COM_ParseToken(&data, false))
1412 if (com_token[0] == '}')
1413 break; // end of worldspawn
1414 if (com_token[0] == '_')
1415 strcpy(key, com_token + 1);
1417 strcpy(key, com_token);
1418 while (key[strlen(key)-1] == ' ') // remove trailing spaces
1419 key[strlen(key)-1] = 0;
1420 if (!COM_ParseToken(&data, false))
1422 strcpy(value, com_token);
1423 if (!strcmp("wad", key)) // for HalfLife maps
1425 if (loadmodel->brush.ishlbsp)
1428 for (i = 0;i < 4096;i++)
1429 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
1435 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
1436 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
1438 else if (value[i] == ';' || value[i] == 0)
1442 strcpy(wadname, "textures/");
1443 strcat(wadname, &value[j]);
1444 W_LoadTextureWadFile(wadname, false);
1456 static void Mod_Q1BSP_LoadEntities(lump_t *l)
1458 loadmodel->brush.entities = NULL;
1461 loadmodel->brush.entities = Mem_Alloc(loadmodel->mempool, l->filelen);
1462 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
1463 if (loadmodel->brush.ishlbsp)
1464 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
1468 static void Mod_Q1BSP_LoadVertexes(lump_t *l)
1474 in = (void *)(mod_base + l->fileofs);
1475 if (l->filelen % sizeof(*in))
1476 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
1477 count = l->filelen / sizeof(*in);
1478 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1480 loadmodel->brushq1.vertexes = out;
1481 loadmodel->brushq1.numvertexes = count;
1483 for ( i=0 ; i<count ; i++, in++, out++)
1485 out->position[0] = LittleFloat(in->point[0]);
1486 out->position[1] = LittleFloat(in->point[1]);
1487 out->position[2] = LittleFloat(in->point[2]);
1491 static void Mod_Q1BSP_LoadSubmodels(lump_t *l)
1497 in = (void *)(mod_base + l->fileofs);
1498 if (l->filelen % sizeof(*in))
1499 Host_Error("Mod_Q1BSP_LoadSubmodels: funny lump size in %s",loadmodel->name);
1500 count = l->filelen / sizeof(*in);
1501 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1503 loadmodel->brushq1.submodels = out;
1504 loadmodel->brush.numsubmodels = count;
1506 for ( i=0 ; i<count ; i++, in++, out++)
1508 for (j=0 ; j<3 ; j++)
1510 // spread the mins / maxs by a pixel
1511 out->mins[j] = LittleFloat(in->mins[j]) - 1;
1512 out->maxs[j] = LittleFloat(in->maxs[j]) + 1;
1513 out->origin[j] = LittleFloat(in->origin[j]);
1515 for (j=0 ; j<MAX_MAP_HULLS ; j++)
1516 out->headnode[j] = LittleLong(in->headnode[j]);
1517 out->visleafs = LittleLong(in->visleafs);
1518 out->firstface = LittleLong(in->firstface);
1519 out->numfaces = LittleLong(in->numfaces);
1523 static void Mod_Q1BSP_LoadEdges(lump_t *l)
1529 in = (void *)(mod_base + l->fileofs);
1530 if (l->filelen % sizeof(*in))
1531 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
1532 count = l->filelen / sizeof(*in);
1533 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1535 loadmodel->brushq1.edges = out;
1536 loadmodel->brushq1.numedges = count;
1538 for ( i=0 ; i<count ; i++, in++, out++)
1540 out->v[0] = (unsigned short)LittleShort(in->v[0]);
1541 out->v[1] = (unsigned short)LittleShort(in->v[1]);
1545 static void Mod_Q1BSP_LoadTexinfo(lump_t *l)
1549 int i, j, k, count, miptex;
1551 in = (void *)(mod_base + l->fileofs);
1552 if (l->filelen % sizeof(*in))
1553 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
1554 count = l->filelen / sizeof(*in);
1555 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1557 loadmodel->brushq1.texinfo = out;
1558 loadmodel->brushq1.numtexinfo = count;
1560 for (i = 0;i < count;i++, in++, out++)
1562 for (k = 0;k < 2;k++)
1563 for (j = 0;j < 4;j++)
1564 out->vecs[k][j] = LittleFloat(in->vecs[k][j]);
1566 miptex = LittleLong(in->miptex);
1567 out->flags = LittleLong(in->flags);
1569 out->texture = NULL;
1570 if (loadmodel->brushq1.textures)
1572 if ((unsigned int) miptex >= (unsigned int) loadmodel->brushq1.numtextures)
1573 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->brushq1.numtextures);
1575 out->texture = loadmodel->brushq1.textures + miptex;
1577 if (out->flags & TEX_SPECIAL)
1579 // if texture chosen is NULL or the shader needs a lightmap,
1580 // force to notexture water shader
1581 if (out->texture == NULL || out->texture->flags & SURF_LIGHTMAP)
1582 out->texture = loadmodel->brushq1.textures + (loadmodel->brushq1.numtextures - 1);
1586 // if texture chosen is NULL, force to notexture
1587 if (out->texture == NULL)
1588 out->texture = loadmodel->brushq1.textures + (loadmodel->brushq1.numtextures - 2);
1594 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
1599 mins[0] = mins[1] = mins[2] = 9999;
1600 maxs[0] = maxs[1] = maxs[2] = -9999;
1602 for (i = 0;i < numverts;i++)
1604 for (j = 0;j < 3;j++, v++)
1614 #define MAX_SUBDIVPOLYTRIANGLES 4096
1615 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
1617 static int subdivpolyverts, subdivpolytriangles;
1618 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
1619 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
1621 static int subdivpolylookupvert(vec3_t v)
1624 for (i = 0;i < subdivpolyverts;i++)
1625 if (subdivpolyvert[i][0] == v[0]
1626 && subdivpolyvert[i][1] == v[1]
1627 && subdivpolyvert[i][2] == v[2])
1629 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
1630 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
1631 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
1632 return subdivpolyverts++;
1635 static void SubdividePolygon(int numverts, float *verts)
1637 int i, i1, i2, i3, f, b, c, p;
1638 vec3_t mins, maxs, front[256], back[256];
1639 float m, *pv, *cv, dist[256], frac;
1642 Host_Error("SubdividePolygon: ran out of verts in buffer");
1644 BoundPoly(numverts, verts, mins, maxs);
1646 for (i = 0;i < 3;i++)
1648 m = (mins[i] + maxs[i]) * 0.5;
1649 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
1650 if (maxs[i] - m < 8)
1652 if (m - mins[i] < 8)
1656 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
1657 dist[c] = cv[i] - m;
1660 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
1664 VectorCopy(pv, front[f]);
1669 VectorCopy(pv, back[b]);
1672 if (dist[p] == 0 || dist[c] == 0)
1674 if ((dist[p] > 0) != (dist[c] > 0) )
1677 frac = dist[p] / (dist[p] - dist[c]);
1678 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
1679 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
1680 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
1686 SubdividePolygon(f, front[0]);
1687 SubdividePolygon(b, back[0]);
1691 i1 = subdivpolylookupvert(verts);
1692 i2 = subdivpolylookupvert(verts + 3);
1693 for (i = 2;i < numverts;i++)
1695 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
1697 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
1701 i3 = subdivpolylookupvert(verts + i * 3);
1702 subdivpolyindex[subdivpolytriangles][0] = i1;
1703 subdivpolyindex[subdivpolytriangles][1] = i2;
1704 subdivpolyindex[subdivpolytriangles][2] = i3;
1706 subdivpolytriangles++;
1710 //Breaks a polygon up along axial 64 unit
1711 //boundaries so that turbulent and sky warps
1712 //can be done reasonably.
1713 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surf)
1719 subdivpolytriangles = 0;
1720 subdivpolyverts = 0;
1721 SubdividePolygon(surf->poly_numverts, surf->poly_verts);
1722 if (subdivpolytriangles < 1)
1723 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?\n");
1725 surf->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
1726 mesh->num_vertices = subdivpolyverts;
1727 mesh->num_triangles = subdivpolytriangles;
1728 mesh->vertex = (surfvertex_t *)(mesh + 1);
1729 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
1730 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
1732 for (i = 0;i < mesh->num_triangles;i++)
1733 for (j = 0;j < 3;j++)
1734 mesh->index[i*3+j] = subdivpolyindex[i][j];
1736 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
1738 VectorCopy(subdivpolyvert[i], v->v);
1739 v->st[0] = DotProduct(v->v, surf->texinfo->vecs[0]);
1740 v->st[1] = DotProduct(v->v, surf->texinfo->vecs[1]);
1745 static void Mod_Q1BSP_GenerateSurfacePolygon(msurface_t *surf, int firstedge, int numedges)
1748 float *vec, *vert, mins[3], maxs[3], val, *v;
1751 // convert edges back to a normal polygon
1752 surf->poly_numverts = numedges;
1753 vert = surf->poly_verts = Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * numedges);
1754 for (i = 0;i < numedges;i++)
1756 lindex = loadmodel->brushq1.surfedges[firstedge + i];
1758 vec = loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position;
1760 vec = loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position;
1761 VectorCopy(vec, vert);
1765 // calculate polygon bounding box and center
1766 vert = surf->poly_verts;
1767 VectorCopy(vert, mins);
1768 VectorCopy(vert, maxs);
1770 for (i = 1;i < surf->poly_numverts;i++, vert += 3)
1772 if (mins[0] > vert[0]) mins[0] = vert[0];if (maxs[0] < vert[0]) maxs[0] = vert[0];
1773 if (mins[1] > vert[1]) mins[1] = vert[1];if (maxs[1] < vert[1]) maxs[1] = vert[1];
1774 if (mins[2] > vert[2]) mins[2] = vert[2];if (maxs[2] < vert[2]) maxs[2] = vert[2];
1776 VectorCopy(mins, surf->poly_mins);
1777 VectorCopy(maxs, surf->poly_maxs);
1778 surf->poly_center[0] = (mins[0] + maxs[0]) * 0.5f;
1779 surf->poly_center[1] = (mins[1] + maxs[1]) * 0.5f;
1780 surf->poly_center[2] = (mins[2] + maxs[2]) * 0.5f;
1782 // generate surface extents information
1783 tex = surf->texinfo;
1784 mins[0] = maxs[0] = DotProduct(surf->poly_verts, tex->vecs[0]) + tex->vecs[0][3];
1785 mins[1] = maxs[1] = DotProduct(surf->poly_verts, tex->vecs[1]) + tex->vecs[1][3];
1786 for (i = 1, v = surf->poly_verts + 3;i < surf->poly_numverts;i++, v += 3)
1788 for (j = 0;j < 2;j++)
1790 val = DotProduct(v, tex->vecs[j]) + tex->vecs[j][3];
1797 for (i = 0;i < 2;i++)
1799 surf->texturemins[i] = (int) floor(mins[i] / 16) * 16;
1800 surf->extents[i] = (int) ceil(maxs[i] / 16) * 16 - surf->texturemins[i];
1804 static void Mod_Q1BSP_LoadFaces(lump_t *l)
1808 int i, count, surfnum, planenum, ssize, tsize, firstedge, numedges, totalverts, totaltris, totalmeshes;
1812 in = (void *)(mod_base + l->fileofs);
1813 if (l->filelen % sizeof(*in))
1814 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
1815 count = l->filelen / sizeof(*in);
1816 loadmodel->brushq1.surfaces = Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
1818 loadmodel->brushq1.numsurfaces = count;
1819 loadmodel->brushq1.surfacevisframes = Mem_Alloc(loadmodel->mempool, count * sizeof(int));
1820 loadmodel->brushq1.surfacepvsframes = Mem_Alloc(loadmodel->mempool, count * sizeof(int));
1821 loadmodel->brushq1.pvssurflist = Mem_Alloc(loadmodel->mempool, count * sizeof(int));
1823 for (surfnum = 0, surf = loadmodel->brushq1.surfaces, totalverts = 0, totaltris = 0, totalmeshes = 0;surfnum < count;surfnum++, totalverts += surf->poly_numverts, totaltris += surf->poly_numverts - 2, totalmeshes++, in++, surf++)
1825 surf->number = surfnum;
1826 // FIXME: validate edges, texinfo, etc?
1827 firstedge = LittleLong(in->firstedge);
1828 numedges = LittleShort(in->numedges);
1829 if ((unsigned int) firstedge > (unsigned int) loadmodel->brushq1.numsurfedges || (unsigned int) numedges > (unsigned int) loadmodel->brushq1.numsurfedges || (unsigned int) firstedge + (unsigned int) numedges > (unsigned int) loadmodel->brushq1.numsurfedges)
1830 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)\n", firstedge, numedges, loadmodel->brushq1.numsurfedges);
1831 i = LittleShort(in->texinfo);
1832 if ((unsigned int) i >= (unsigned int) loadmodel->brushq1.numtexinfo)
1833 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)\n", i, loadmodel->brushq1.numtexinfo);
1834 surf->texinfo = loadmodel->brushq1.texinfo + i;
1835 surf->flags = surf->texinfo->texture->flags;
1837 planenum = LittleShort(in->planenum);
1838 if ((unsigned int) planenum >= (unsigned int) loadmodel->brushq1.numplanes)
1839 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)\n", planenum, loadmodel->brushq1.numplanes);
1841 if (LittleShort(in->side))
1842 surf->flags |= SURF_PLANEBACK;
1844 surf->plane = loadmodel->brushq1.planes + planenum;
1846 // clear lightmap (filled in later)
1847 surf->lightmaptexture = NULL;
1849 // force lightmap upload on first time seeing the surface
1850 surf->cached_dlight = true;
1852 Mod_Q1BSP_GenerateSurfacePolygon(surf, firstedge, numedges);
1854 ssize = (surf->extents[0] >> 4) + 1;
1855 tsize = (surf->extents[1] >> 4) + 1;
1858 for (i = 0;i < MAXLIGHTMAPS;i++)
1859 surf->styles[i] = in->styles[i];
1860 i = LittleLong(in->lightofs);
1862 surf->samples = NULL;
1863 else if (loadmodel->brush.ishlbsp) // LordHavoc: HalfLife map (bsp version 30)
1864 surf->samples = loadmodel->brushq1.lightdata + i;
1865 else // LordHavoc: white lighting (bsp version 29)
1866 surf->samples = loadmodel->brushq1.lightdata + (i * 3);
1868 if (surf->texinfo->texture->flags & SURF_LIGHTMAP)
1870 if ((surf->extents[0] >> 4) + 1 > (256) || (surf->extents[1] >> 4) + 1 > (256))
1871 Host_Error("Bad surface extents");
1872 // stainmap for permanent marks on walls
1873 surf->stainsamples = Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
1875 memset(surf->stainsamples, 255, ssize * tsize * 3);
1879 loadmodel->entiremesh = Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, 0, 0, true, true, false);
1881 for (surfnum = 0, surf = loadmodel->brushq1.surfaces, totalverts = 0, totaltris = 0, totalmeshes = 0;surfnum < count;surfnum++, totalverts += surf->poly_numverts, totaltris += surf->poly_numverts - 2, totalmeshes++, surf++)
1884 mesh->num_vertices = surf->poly_numverts;
1885 mesh->num_triangles = surf->poly_numverts - 2;
1886 mesh->data_vertex3f = loadmodel->entiremesh->data_vertex3f + totalverts * 3;
1887 mesh->data_texcoordtexture2f = loadmodel->entiremesh->data_texcoordtexture2f + totalverts * 2;
1888 mesh->data_texcoordlightmap2f = loadmodel->entiremesh->data_texcoordlightmap2f + totalverts * 2;
1889 mesh->data_texcoorddetail2f = loadmodel->entiremesh->data_texcoorddetail2f + totalverts * 2;
1890 mesh->data_svector3f = loadmodel->entiremesh->data_svector3f + totalverts * 3;
1891 mesh->data_tvector3f = loadmodel->entiremesh->data_tvector3f + totalverts * 3;
1892 mesh->data_normal3f = loadmodel->entiremesh->data_normal3f + totalverts * 3;
1893 mesh->data_lightmapoffsets = loadmodel->entiremesh->data_lightmapoffsets + totalverts;
1894 mesh->data_element3i = loadmodel->entiremesh->data_element3i + totaltris * 3;
1895 mesh->data_neighbor3i = loadmodel->entiremesh->data_neighbor3i + totaltris * 3;
1897 surf->lightmaptexturestride = 0;
1898 surf->lightmaptexture = NULL;
1900 for (i = 0;i < mesh->num_vertices;i++)
1902 mesh->data_vertex3f[i * 3 + 0] = surf->poly_verts[i * 3 + 0];
1903 mesh->data_vertex3f[i * 3 + 1] = surf->poly_verts[i * 3 + 1];
1904 mesh->data_vertex3f[i * 3 + 2] = surf->poly_verts[i * 3 + 2];
1905 s = DotProduct((mesh->data_vertex3f + i * 3), surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3];
1906 t = DotProduct((mesh->data_vertex3f + i * 3), surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3];
1907 mesh->data_texcoordtexture2f[i * 2 + 0] = s / surf->texinfo->texture->width;
1908 mesh->data_texcoordtexture2f[i * 2 + 1] = t / surf->texinfo->texture->height;
1909 mesh->data_texcoorddetail2f[i * 2 + 0] = s * (1.0f / 16.0f);
1910 mesh->data_texcoorddetail2f[i * 2 + 1] = t * (1.0f / 16.0f);
1911 mesh->data_texcoordlightmap2f[i * 2 + 0] = 0;
1912 mesh->data_texcoordlightmap2f[i * 2 + 1] = 0;
1913 mesh->data_lightmapoffsets[i] = 0;
1916 for (i = 0;i < mesh->num_triangles;i++)
1918 mesh->data_element3i[i * 3 + 0] = 0;
1919 mesh->data_element3i[i * 3 + 1] = i + 1;
1920 mesh->data_element3i[i * 3 + 2] = i + 2;
1923 Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
1924 Mod_BuildTextureVectorsAndNormals(mesh->num_vertices, mesh->num_triangles, mesh->data_vertex3f, mesh->data_texcoordtexture2f, mesh->data_element3i, mesh->data_svector3f, mesh->data_tvector3f, mesh->data_normal3f);
1926 if (surf->texinfo->texture->flags & SURF_LIGHTMAP)
1928 int i, iu, iv, smax, tmax;
1929 float u, v, ubase, vbase, uscale, vscale;
1931 smax = surf->extents[0] >> 4;
1932 tmax = surf->extents[1] >> 4;
1934 if (r_miplightmaps.integer)
1936 surf->lightmaptexturestride = smax+1;
1937 surf->lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, NULL, surf->lightmaptexturestride, (surf->extents[1]>>4)+1, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_MIPMAP | TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
1941 surf->lightmaptexturestride = R_CompatibleFragmentWidth(smax+1, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, 0);
1942 surf->lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, NULL, surf->lightmaptexturestride, (surf->extents[1]>>4)+1, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FRAGMENT | TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
1944 R_FragmentLocation(surf->lightmaptexture, NULL, NULL, &ubase, &vbase, &uscale, &vscale);
1945 uscale = (uscale - ubase) / (smax + 1);
1946 vscale = (vscale - vbase) / (tmax + 1);
1948 for (i = 0;i < mesh->num_vertices;i++)
1950 u = ((DotProduct((mesh->data_vertex3f + i * 3), surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3]) + 8 - surf->texturemins[0]) * (1.0 / 16.0);
1951 v = ((DotProduct((mesh->data_vertex3f + i * 3), surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3]) + 8 - surf->texturemins[1]) * (1.0 / 16.0);
1952 mesh->data_texcoordlightmap2f[i * 2 + 0] = u * uscale + ubase;
1953 mesh->data_texcoordlightmap2f[i * 2 + 1] = v * vscale + vbase;
1954 // LordHavoc: calc lightmap data offset for vertex lighting to use
1957 mesh->data_lightmapoffsets[i] = (bound(0, iv, tmax) * (smax+1) + bound(0, iu, smax)) * 3;
1963 static void Mod_Q1BSP_SetParent(mnode_t *node, mnode_t *parent)
1965 node->parent = parent;
1966 if (node->contents < 0)
1968 Mod_Q1BSP_SetParent(node->children[0], node);
1969 Mod_Q1BSP_SetParent(node->children[1], node);
1972 static void Mod_Q1BSP_LoadNodes(lump_t *l)
1978 in = (void *)(mod_base + l->fileofs);
1979 if (l->filelen % sizeof(*in))
1980 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
1981 count = l->filelen / sizeof(*in);
1982 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1984 loadmodel->brushq1.nodes = out;
1985 loadmodel->brushq1.numnodes = count;
1987 for ( i=0 ; i<count ; i++, in++, out++)
1989 for (j=0 ; j<3 ; j++)
1991 out->mins[j] = LittleShort(in->mins[j]);
1992 out->maxs[j] = LittleShort(in->maxs[j]);
1995 p = LittleLong(in->planenum);
1996 out->plane = loadmodel->brushq1.planes + p;
1998 out->firstsurface = LittleShort(in->firstface);
1999 out->numsurfaces = LittleShort(in->numfaces);
2001 for (j=0 ; j<2 ; j++)
2003 p = LittleShort(in->children[j]);
2005 out->children[j] = loadmodel->brushq1.nodes + p;
2007 out->children[j] = (mnode_t *)(loadmodel->brushq1.data_leafs + (-1 - p));
2011 Mod_Q1BSP_SetParent(loadmodel->brushq1.nodes, NULL); // sets nodes and leafs
2014 static void Mod_Q1BSP_LoadLeafs(lump_t *l)
2020 in = (void *)(mod_base + l->fileofs);
2021 if (l->filelen % sizeof(*in))
2022 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2023 count = l->filelen / sizeof(*in);
2024 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2026 loadmodel->brushq1.data_leafs = out;
2027 loadmodel->brushq1.num_leafs = count;
2028 // get visleafs from the submodel data
2029 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2030 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2031 loadmodel->brush.data_pvsclusters = Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2032 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2034 for ( i=0 ; i<count ; i++, in++, out++)
2036 for (j=0 ; j<3 ; j++)
2038 out->mins[j] = LittleShort(in->mins[j]);
2039 out->maxs[j] = LittleShort(in->maxs[j]);
2042 // FIXME: this function could really benefit from some error checking
2044 out->contents = LittleLong(in->contents);
2046 out->firstmarksurface = loadmodel->brushq1.marksurfaces + LittleShort(in->firstmarksurface);
2047 out->nummarksurfaces = LittleShort(in->nummarksurfaces);
2048 if (out->firstmarksurface < 0 || LittleShort(in->firstmarksurface) + out->nummarksurfaces > loadmodel->brushq1.nummarksurfaces)
2050 Con_Printf("Mod_Q1BSP_LoadLeafs: invalid marksurface range %i:%i outside range %i:%i\n", out->firstmarksurface, out->firstmarksurface + out->nummarksurfaces, 0, loadmodel->brushq1.nummarksurfaces);
2051 out->firstmarksurface = NULL;
2052 out->nummarksurfaces = 0;
2055 out->clusterindex = i - 1;
2056 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
2057 out->clusterindex = -1;
2059 p = LittleLong(in->visofs);
2060 // ignore visofs errors on leaf 0 (solid)
2061 if (p >= 0 && out->clusterindex >= 0)
2063 if (p >= loadmodel->brushq1.num_compressedpvs)
2064 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
2066 Mod_Q1BSP_DecompressVis(loadmodel->brushq1.data_compressedpvs + p, loadmodel->brushq1.data_compressedpvs + loadmodel->brushq1.num_compressedpvs, loadmodel->brush.data_pvsclusters + out->clusterindex * loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.data_pvsclusters + (out->clusterindex + 1) * loadmodel->brush.num_pvsclusterbytes);
2069 for (j = 0;j < 4;j++)
2070 out->ambient_sound_level[j] = in->ambient_level[j];
2072 // FIXME: Insert caustics here
2076 static void Mod_Q1BSP_LoadClipnodes(lump_t *l)
2078 dclipnode_t *in, *out;
2082 in = (void *)(mod_base + l->fileofs);
2083 if (l->filelen % sizeof(*in))
2084 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
2085 count = l->filelen / sizeof(*in);
2086 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2088 loadmodel->brushq1.clipnodes = out;
2089 loadmodel->brushq1.numclipnodes = count;
2091 if (loadmodel->brush.ishlbsp)
2093 hull = &loadmodel->brushq1.hulls[1];
2094 hull->clipnodes = out;
2095 hull->firstclipnode = 0;
2096 hull->lastclipnode = count-1;
2097 hull->planes = loadmodel->brushq1.planes;
2098 hull->clip_mins[0] = -16;
2099 hull->clip_mins[1] = -16;
2100 hull->clip_mins[2] = -36;
2101 hull->clip_maxs[0] = 16;
2102 hull->clip_maxs[1] = 16;
2103 hull->clip_maxs[2] = 36;
2104 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2106 hull = &loadmodel->brushq1.hulls[2];
2107 hull->clipnodes = out;
2108 hull->firstclipnode = 0;
2109 hull->lastclipnode = count-1;
2110 hull->planes = loadmodel->brushq1.planes;
2111 hull->clip_mins[0] = -32;
2112 hull->clip_mins[1] = -32;
2113 hull->clip_mins[2] = -32;
2114 hull->clip_maxs[0] = 32;
2115 hull->clip_maxs[1] = 32;
2116 hull->clip_maxs[2] = 32;
2117 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2119 hull = &loadmodel->brushq1.hulls[3];
2120 hull->clipnodes = out;
2121 hull->firstclipnode = 0;
2122 hull->lastclipnode = count-1;
2123 hull->planes = loadmodel->brushq1.planes;
2124 hull->clip_mins[0] = -16;
2125 hull->clip_mins[1] = -16;
2126 hull->clip_mins[2] = -18;
2127 hull->clip_maxs[0] = 16;
2128 hull->clip_maxs[1] = 16;
2129 hull->clip_maxs[2] = 18;
2130 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2134 hull = &loadmodel->brushq1.hulls[1];
2135 hull->clipnodes = out;
2136 hull->firstclipnode = 0;
2137 hull->lastclipnode = count-1;
2138 hull->planes = loadmodel->brushq1.planes;
2139 hull->clip_mins[0] = -16;
2140 hull->clip_mins[1] = -16;
2141 hull->clip_mins[2] = -24;
2142 hull->clip_maxs[0] = 16;
2143 hull->clip_maxs[1] = 16;
2144 hull->clip_maxs[2] = 32;
2145 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2147 hull = &loadmodel->brushq1.hulls[2];
2148 hull->clipnodes = out;
2149 hull->firstclipnode = 0;
2150 hull->lastclipnode = count-1;
2151 hull->planes = loadmodel->brushq1.planes;
2152 hull->clip_mins[0] = -32;
2153 hull->clip_mins[1] = -32;
2154 hull->clip_mins[2] = -24;
2155 hull->clip_maxs[0] = 32;
2156 hull->clip_maxs[1] = 32;
2157 hull->clip_maxs[2] = 64;
2158 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2161 for (i=0 ; i<count ; i++, out++, in++)
2163 out->planenum = LittleLong(in->planenum);
2164 out->children[0] = LittleShort(in->children[0]);
2165 out->children[1] = LittleShort(in->children[1]);
2166 if (out->children[0] >= count || out->children[1] >= count)
2167 Host_Error("Corrupt clipping hull(out of range child)\n");
2171 //Duplicate the drawing hull structure as a clipping hull
2172 static void Mod_Q1BSP_MakeHull0(void)
2179 hull = &loadmodel->brushq1.hulls[0];
2181 in = loadmodel->brushq1.nodes;
2182 out = Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numnodes * sizeof(dclipnode_t));
2184 hull->clipnodes = out;
2185 hull->firstclipnode = 0;
2186 hull->lastclipnode = loadmodel->brushq1.numnodes - 1;
2187 hull->planes = loadmodel->brushq1.planes;
2189 for (i = 0;i < loadmodel->brushq1.numnodes;i++, out++, in++)
2191 out->planenum = in->plane - loadmodel->brushq1.planes;
2192 out->children[0] = in->children[0]->contents < 0 ? in->children[0]->contents : in->children[0] - loadmodel->brushq1.nodes;
2193 out->children[1] = in->children[1]->contents < 0 ? in->children[1]->contents : in->children[1] - loadmodel->brushq1.nodes;
2197 static void Mod_Q1BSP_LoadMarksurfaces(lump_t *l)
2202 in = (void *)(mod_base + l->fileofs);
2203 if (l->filelen % sizeof(*in))
2204 Host_Error("Mod_Q1BSP_LoadMarksurfaces: funny lump size in %s",loadmodel->name);
2205 loadmodel->brushq1.nummarksurfaces = l->filelen / sizeof(*in);
2206 loadmodel->brushq1.marksurfaces = Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.nummarksurfaces * sizeof(int));
2208 for (i = 0;i < loadmodel->brushq1.nummarksurfaces;i++)
2210 j = (unsigned) LittleShort(in[i]);
2211 if (j >= loadmodel->brushq1.numsurfaces)
2212 Host_Error("Mod_Q1BSP_LoadMarksurfaces: bad surface number");
2213 loadmodel->brushq1.marksurfaces[i] = j;
2217 static void Mod_Q1BSP_LoadSurfedges(lump_t *l)
2222 in = (void *)(mod_base + l->fileofs);
2223 if (l->filelen % sizeof(*in))
2224 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
2225 loadmodel->brushq1.numsurfedges = l->filelen / sizeof(*in);
2226 loadmodel->brushq1.surfedges = Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
2228 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
2229 loadmodel->brushq1.surfedges[i] = LittleLong(in[i]);
2233 static void Mod_Q1BSP_LoadPlanes(lump_t *l)
2239 in = (void *)(mod_base + l->fileofs);
2240 if (l->filelen % sizeof(*in))
2241 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
2243 loadmodel->brushq1.numplanes = l->filelen / sizeof(*in);
2244 loadmodel->brushq1.planes = out = Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numplanes * sizeof(*out));
2246 for (i = 0;i < loadmodel->brushq1.numplanes;i++, in++, out++)
2248 out->normal[0] = LittleFloat(in->normal[0]);
2249 out->normal[1] = LittleFloat(in->normal[1]);
2250 out->normal[2] = LittleFloat(in->normal[2]);
2251 out->dist = LittleFloat(in->dist);
2257 static void Mod_Q1BSP_LoadMapBrushes(void)
2261 int submodel, numbrushes;
2262 qboolean firstbrush;
2263 char *text, *maptext;
2264 char mapfilename[MAX_QPATH];
2265 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
2266 strlcat (mapfilename, ".map", sizeof (mapfilename));
2267 maptext = (qbyte*) FS_LoadFile(mapfilename, tempmempool, false);
2271 if (!COM_ParseToken(&data, false))
2276 if (!COM_ParseToken(&data, false))
2278 if (com_token[0] != '{')
2284 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
2287 if (!COM_ParseToken(&data, false))
2289 if (com_token[0] == '}')
2290 break; // end of entity
2291 if (com_token[0] == '{')
2298 if (submodel > loadmodel->brush.numsubmodels)
2300 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
2304 model = loadmodel->brush.submodels[submodel];
2311 if (!COM_ParseToken(&data, false))
2313 if (com_token[0] == '}')
2314 break; // end of brush
2315 // each brush face should be this format:
2316 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
2317 // FIXME: support hl .map format
2318 for (pointnum = 0;pointnum < 3;pointnum++)
2320 COM_ParseToken(&data, false);
2321 for (componentnum = 0;componentnum < 3;componentnum++)
2323 COM_ParseToken(&data, false);
2324 point[pointnum][componentnum] = atof(com_token);
2326 COM_ParseToken(&data, false);
2328 COM_ParseToken(&data, false);
2329 strlcpy(facetexture, com_token, sizeof(facetexture));
2330 COM_ParseToken(&data, false);
2331 //scroll_s = atof(com_token);
2332 COM_ParseToken(&data, false);
2333 //scroll_t = atof(com_token);
2334 COM_ParseToken(&data, false);
2335 //rotate = atof(com_token);
2336 COM_ParseToken(&data, false);
2337 //scale_s = atof(com_token);
2338 COM_ParseToken(&data, false);
2339 //scale_t = atof(com_token);
2340 TriangleNormal(point[0], point[1], point[2], planenormal);
2341 VectorNormalizeDouble(planenormal);
2342 planedist = DotProduct(point[0], planenormal);
2343 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
2353 #define MAX_PORTALPOINTS 64
2355 typedef struct portal_s
2358 mnode_t *nodes[2]; // [0] = front side of plane
2359 struct portal_s *next[2];
2361 double points[3*MAX_PORTALPOINTS];
2362 struct portal_s *chain; // all portals are linked into a list
2366 static portal_t *portalchain;
2373 static portal_t *AllocPortal(void)
2376 p = Mem_Alloc(loadmodel->mempool, sizeof(portal_t));
2377 p->chain = portalchain;
2382 static void FreePortal(portal_t *p)
2387 static void Mod_Q1BSP_RecursiveRecalcNodeBBox(mnode_t *node)
2389 // calculate children first
2390 if (node->children[0]->contents >= 0)
2391 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[0]);
2392 if (node->children[1]->contents >= 0)
2393 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[1]);
2395 // make combined bounding box from children
2396 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
2397 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
2398 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
2399 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
2400 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
2401 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
2404 static void Mod_Q1BSP_FinalizePortals(void)
2406 int i, j, numportals, numpoints;
2407 portal_t *p, *pnext;
2410 mleaf_t *leaf, *endleaf;
2412 // recalculate bounding boxes for all leafs(because qbsp is very sloppy)
2413 leaf = loadmodel->brushq1.data_leafs;
2414 endleaf = leaf + loadmodel->brushq1.num_leafs;
2415 for (;leaf < endleaf;leaf++)
2417 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
2418 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
2423 if (p->numpoints >= 3)
2425 for (i = 0;i < 2;i++)
2427 leaf = (mleaf_t *)p->nodes[i];
2428 for (j = 0;j < p->numpoints;j++)
2430 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
2431 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
2432 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
2433 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
2434 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
2435 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
2442 Mod_Q1BSP_RecursiveRecalcNodeBBox(loadmodel->brushq1.nodes);
2444 // tally up portal and point counts
2450 // note: this check must match the one below or it will usually corrupt memory
2451 // the nodes[0] != nodes[1] check is because leaf 0 is the shared solid leaf, it can have many portals inside with leaf 0 on both sides
2452 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1]
2453 && p->nodes[0]->contents != CONTENTS_SOLID && p->nodes[1]->contents != CONTENTS_SOLID
2454 && p->nodes[0]->contents != CONTENTS_SKY && p->nodes[1]->contents != CONTENTS_SKY)
2457 numpoints += p->numpoints * 2;
2461 loadmodel->brushq1.portals = Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
2462 loadmodel->brushq1.numportals = numportals;
2463 loadmodel->brushq1.portalpoints = (void *)((qbyte *) loadmodel->brushq1.portals + numportals * sizeof(mportal_t));
2464 loadmodel->brushq1.numportalpoints = numpoints;
2465 // clear all leaf portal chains
2466 for (i = 0;i < loadmodel->brushq1.num_leafs;i++)
2467 loadmodel->brushq1.data_leafs[i].portals = NULL;
2468 // process all portals in the global portal chain, while freeing them
2469 portal = loadmodel->brushq1.portals;
2470 point = loadmodel->brushq1.portalpoints;
2477 if (p->numpoints >= 3)
2479 // note: this check must match the one above or it will usually corrupt memory
2480 // the nodes[0] != nodes[1] check is because leaf 0 is the shared solid leaf, it can have many portals inside with leaf 0 on both sides
2481 if (p->nodes[0] != p->nodes[1]
2482 && p->nodes[0]->contents != CONTENTS_SOLID && p->nodes[1]->contents != CONTENTS_SOLID
2483 && p->nodes[0]->contents != CONTENTS_SKY && p->nodes[1]->contents != CONTENTS_SKY)
2485 // first make the back to front portal(forward portal)
2486 portal->points = point;
2487 portal->numpoints = p->numpoints;
2488 portal->plane.dist = p->plane.dist;
2489 VectorCopy(p->plane.normal, portal->plane.normal);
2490 portal->here = (mleaf_t *)p->nodes[1];
2491 portal->past = (mleaf_t *)p->nodes[0];
2493 for (j = 0;j < portal->numpoints;j++)
2495 VectorCopy(p->points + j*3, point->position);
2498 PlaneClassify(&portal->plane);
2500 // link into leaf's portal chain
2501 portal->next = portal->here->portals;
2502 portal->here->portals = portal;
2504 // advance to next portal
2507 // then make the front to back portal(backward portal)
2508 portal->points = point;
2509 portal->numpoints = p->numpoints;
2510 portal->plane.dist = -p->plane.dist;
2511 VectorNegate(p->plane.normal, portal->plane.normal);
2512 portal->here = (mleaf_t *)p->nodes[0];
2513 portal->past = (mleaf_t *)p->nodes[1];
2515 for (j = portal->numpoints - 1;j >= 0;j--)
2517 VectorCopy(p->points + j*3, point->position);
2520 PlaneClassify(&portal->plane);
2522 // link into leaf's portal chain
2523 portal->next = portal->here->portals;
2524 portal->here->portals = portal;
2526 // advance to next portal
2540 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
2543 Host_Error("AddPortalToNodes: NULL front node");
2545 Host_Error("AddPortalToNodes: NULL back node");
2546 if (p->nodes[0] || p->nodes[1])
2547 Host_Error("AddPortalToNodes: already included");
2548 // note: front == back is handled gracefully, because leaf 0 is the shared solid leaf, it can often have portals with the same leaf on both sides
2550 p->nodes[0] = front;
2551 p->next[0] = (portal_t *)front->portals;
2552 front->portals = (mportal_t *)p;
2555 p->next[1] = (portal_t *)back->portals;
2556 back->portals = (mportal_t *)p;
2561 RemovePortalFromNode
2564 static void RemovePortalFromNodes(portal_t *portal)
2568 void **portalpointer;
2570 for (i = 0;i < 2;i++)
2572 node = portal->nodes[i];
2574 portalpointer = (void **) &node->portals;
2579 Host_Error("RemovePortalFromNodes: portal not in leaf");
2583 if (portal->nodes[0] == node)
2585 *portalpointer = portal->next[0];
2586 portal->nodes[0] = NULL;
2588 else if (portal->nodes[1] == node)
2590 *portalpointer = portal->next[1];
2591 portal->nodes[1] = NULL;
2594 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2598 if (t->nodes[0] == node)
2599 portalpointer = (void **) &t->next[0];
2600 else if (t->nodes[1] == node)
2601 portalpointer = (void **) &t->next[1];
2603 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2608 static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
2611 mnode_t *front, *back, *other_node;
2612 mplane_t clipplane, *plane;
2613 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
2614 int numfrontpoints, numbackpoints;
2615 double frontpoints[3*MAX_PORTALPOINTS], backpoints[3*MAX_PORTALPOINTS];
2617 // if a leaf, we're done
2621 plane = node->plane;
2623 front = node->children[0];
2624 back = node->children[1];
2626 Host_Error("Mod_Q1BSP_RecursiveNodePortals: corrupt node hierarchy");
2628 // create the new portal by generating a polygon for the node plane,
2629 // and clipping it by all of the other portals(which came from nodes above this one)
2630 nodeportal = AllocPortal();
2631 nodeportal->plane = *plane;
2633 PolygonD_QuadForPlane(nodeportal->points, nodeportal->plane.normal[0], nodeportal->plane.normal[1], nodeportal->plane.normal[2], nodeportal->plane.dist, 1024.0*1024.0*1024.0);
2634 nodeportal->numpoints = 4;
2635 side = 0; // shut up compiler warning
2636 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
2638 clipplane = portal->plane;
2639 if (portal->nodes[0] == portal->nodes[1])
2640 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(1)");
2641 if (portal->nodes[0] == node)
2643 else if (portal->nodes[1] == node)
2645 clipplane.dist = -clipplane.dist;
2646 VectorNegate(clipplane.normal, clipplane.normal);
2650 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2652 for (i = 0;i < nodeportal->numpoints*3;i++)
2653 frontpoints[i] = nodeportal->points[i];
2654 PolygonD_Divide(nodeportal->numpoints, frontpoints, clipplane.normal[0], clipplane.normal[1], clipplane.normal[2], clipplane.dist, 1.0/32.0, MAX_PORTALPOINTS, nodeportal->points, &nodeportal->numpoints, 0, NULL, NULL);
2655 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
2659 if (nodeportal->numpoints < 3)
2661 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
2662 nodeportal->numpoints = 0;
2664 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
2666 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
2667 nodeportal->numpoints = 0;
2671 AddPortalToNodes(nodeportal, front, back);
2673 // split the portals of this node along this node's plane and assign them to the children of this node
2674 // (migrating the portals downward through the tree)
2675 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
2677 if (portal->nodes[0] == portal->nodes[1])
2678 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(2)");
2679 if (portal->nodes[0] == node)
2681 else if (portal->nodes[1] == node)
2684 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2685 nextportal = portal->next[side];
2687 other_node = portal->nodes[!side];
2688 RemovePortalFromNodes(portal);
2690 // cut the portal into two portals, one on each side of the node plane
2691 PolygonD_Divide(portal->numpoints, portal->points, plane->normal[0], plane->normal[1], plane->normal[2], plane->dist, 1.0/32.0, MAX_PORTALPOINTS, frontpoints, &numfrontpoints, MAX_PORTALPOINTS, backpoints, &numbackpoints);
2693 if (!numfrontpoints)
2696 AddPortalToNodes(portal, back, other_node);
2698 AddPortalToNodes(portal, other_node, back);
2704 AddPortalToNodes(portal, front, other_node);
2706 AddPortalToNodes(portal, other_node, front);
2710 // the portal is split
2711 splitportal = AllocPortal();
2712 temp = splitportal->chain;
2713 *splitportal = *portal;
2714 splitportal->chain = temp;
2715 for (i = 0;i < numbackpoints*3;i++)
2716 splitportal->points[i] = backpoints[i];
2717 splitportal->numpoints = numbackpoints;
2718 for (i = 0;i < numfrontpoints*3;i++)
2719 portal->points[i] = frontpoints[i];
2720 portal->numpoints = numfrontpoints;
2724 AddPortalToNodes(portal, front, other_node);
2725 AddPortalToNodes(splitportal, back, other_node);
2729 AddPortalToNodes(portal, other_node, front);
2730 AddPortalToNodes(splitportal, other_node, back);
2735 Mod_Q1BSP_RecursiveNodePortals(front);
2736 Mod_Q1BSP_RecursiveNodePortals(back);
2739 static void Mod_Q1BSP_MakePortals(void)
2742 Mod_Q1BSP_RecursiveNodePortals(loadmodel->brushq1.nodes);
2743 Mod_Q1BSP_FinalizePortals();
2746 static void Mod_Q1BSP_BuildSurfaceNeighbors(msurface_t *surfaces, int numsurfaces, mempool_t *mempool)
2749 int surfnum, vertnum, vertnum2, snum, vnum, vnum2;
2750 msurface_t *surf, *s;
2751 float *v0, *v1, *v2, *v3;
2752 for (surf = surfaces, surfnum = 0;surfnum < numsurfaces;surf++, surfnum++)
2753 surf->neighborsurfaces = Mem_Alloc(mempool, surf->poly_numverts * sizeof(msurface_t *));
2754 for (surf = surfaces, surfnum = 0;surfnum < numsurfaces;surf++, surfnum++)
2756 for (vertnum = surf->poly_numverts - 1, vertnum2 = 0, v0 = surf->poly_verts + (surf->poly_numverts - 1) * 3, v1 = surf->poly_verts;vertnum2 < surf->poly_numverts;vertnum = vertnum2, vertnum2++, v0 = v1, v1 += 3)
2758 if (surf->neighborsurfaces[vertnum])
2760 surf->neighborsurfaces[vertnum] = NULL;
2761 for (s = surfaces, snum = 0;snum < numsurfaces;s++, snum++)
2763 if (s->poly_mins[0] > (surf->poly_maxs[0] + 1) || s->poly_maxs[0] < (surf->poly_mins[0] - 1)
2764 || s->poly_mins[1] > (surf->poly_maxs[1] + 1) || s->poly_maxs[1] < (surf->poly_mins[1] - 1)
2765 || s->poly_mins[2] > (surf->poly_maxs[2] + 1) || s->poly_maxs[2] < (surf->poly_mins[2] - 1)
2768 for (vnum = 0;vnum < s->poly_numverts;vnum++)
2769 if (s->neighborsurfaces[vnum] == surf)
2771 if (vnum < s->poly_numverts)
2773 for (vnum = s->poly_numverts - 1, vnum2 = 0, v2 = s->poly_verts + (s->poly_numverts - 1) * 3, v3 = s->poly_verts;vnum2 < s->poly_numverts;vnum = vnum2, vnum2++, v2 = v3, v3 += 3)
2775 if (s->neighborsurfaces[vnum] == NULL
2776 && ((v0[0] == v2[0] && v0[1] == v2[1] && v0[2] == v2[2] && v1[0] == v3[0] && v1[1] == v3[1] && v1[2] == v3[2])
2777 || (v1[0] == v2[0] && v1[1] == v2[1] && v1[2] == v2[2] && v0[0] == v3[0] && v0[1] == v3[1] && v0[2] == v3[2])))
2779 surf->neighborsurfaces[vertnum] = s;
2780 s->neighborsurfaces[vnum] = surf;
2784 if (vnum < s->poly_numverts)
2792 static void Mod_Q1BSP_BuildLightmapUpdateChains(mempool_t *mempool, model_t *model)
2794 int i, j, stylecounts[256], totalcount, remapstyles[256];
2796 memset(stylecounts, 0, sizeof(stylecounts));
2797 for (i = 0;i < model->nummodelsurfaces;i++)
2799 surf = model->brushq1.surfaces + model->firstmodelsurface + i;
2800 for (j = 0;j < MAXLIGHTMAPS;j++)
2801 stylecounts[surf->styles[j]]++;
2804 model->brushq1.light_styles = 0;
2805 for (i = 0;i < 255;i++)
2809 remapstyles[i] = model->brushq1.light_styles++;
2810 totalcount += stylecounts[i] + 1;
2815 model->brushq1.light_style = Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(qbyte));
2816 model->brushq1.light_stylevalue = Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(int));
2817 model->brushq1.light_styleupdatechains = Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(msurface_t **));
2818 model->brushq1.light_styleupdatechainsbuffer = Mem_Alloc(mempool, totalcount * sizeof(msurface_t *));
2819 model->brushq1.light_styles = 0;
2820 for (i = 0;i < 255;i++)
2822 model->brushq1.light_style[model->brushq1.light_styles++] = i;
2824 for (i = 0;i < model->brushq1.light_styles;i++)
2826 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
2827 j += stylecounts[model->brushq1.light_style[i]] + 1;
2829 for (i = 0;i < model->nummodelsurfaces;i++)
2831 surf = model->brushq1.surfaces + model->firstmodelsurface + i;
2832 for (j = 0;j < MAXLIGHTMAPS;j++)
2833 if (surf->styles[j] != 255)
2834 *model->brushq1.light_styleupdatechains[remapstyles[surf->styles[j]]]++ = surf;
2837 for (i = 0;i < model->brushq1.light_styles;i++)
2839 *model->brushq1.light_styleupdatechains[i] = NULL;
2840 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
2841 j += stylecounts[model->brushq1.light_style[i]] + 1;
2845 static void Mod_Q1BSP_BuildPVSTextureChains(model_t *model)
2848 for (i = 0;i < model->brushq1.numtextures;i++)
2849 model->brushq1.pvstexturechainslength[i] = 0;
2850 for (i = 0, j = model->firstmodelsurface;i < model->nummodelsurfaces;i++, j++)
2852 if (model->brushq1.surfacepvsframes[j] == model->brushq1.pvsframecount)
2854 model->brushq1.pvssurflist[model->brushq1.pvssurflistlength++] = j;
2855 model->brushq1.pvstexturechainslength[model->brushq1.surfaces[j].texinfo->texture->number]++;
2858 for (i = 0, j = 0;i < model->brushq1.numtextures;i++)
2860 if (model->brushq1.pvstexturechainslength[i])
2862 model->brushq1.pvstexturechains[i] = model->brushq1.pvstexturechainsbuffer + j;
2863 j += model->brushq1.pvstexturechainslength[i] + 1;
2866 model->brushq1.pvstexturechains[i] = NULL;
2868 for (i = 0, j = model->firstmodelsurface;i < model->nummodelsurfaces;i++, j++)
2869 if (model->brushq1.surfacepvsframes[j] == model->brushq1.pvsframecount)
2870 *model->brushq1.pvstexturechains[model->brushq1.surfaces[j].texinfo->texture->number]++ = model->brushq1.surfaces + j;
2871 for (i = 0;i < model->brushq1.numtextures;i++)
2873 if (model->brushq1.pvstexturechainslength[i])
2875 *model->brushq1.pvstexturechains[i] = NULL;
2876 model->brushq1.pvstexturechains[i] -= model->brushq1.pvstexturechainslength[i];
2881 //Returns PVS data for a given point
2882 //(note: can return NULL)
2883 static qbyte *Mod_Q1BSP_GetPVS(model_t *model, const vec3_t p)
2886 Mod_CheckLoaded(model);
2887 node = model->brushq1.nodes;
2889 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
2890 if (((mleaf_t *)node)->clusterindex >= 0)
2891 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
2896 static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, qbyte *pvsbuffer, int pvsbytes, mnode_t *node)
2900 float d = PlaneDiff(org, node->plane);
2902 node = node->children[0];
2903 else if (d < -radius)
2904 node = node->children[1];
2907 // go down both sides
2908 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
2909 node = node->children[1];
2912 // if this leaf is in a cluster, accumulate the pvs bits
2913 if (((mleaf_t *)node)->clusterindex >= 0)
2916 qbyte *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
2917 for (i = 0;i < pvsbytes;i++)
2918 pvsbuffer[i] |= pvs[i];
2922 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
2923 //of the given point.
2924 static int Mod_Q1BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, qbyte *pvsbuffer, int pvsbufferlength)
2926 int bytes = ((model->brushq1.num_leafs - 1) + 7) >> 3;
2927 bytes = min(bytes, pvsbufferlength);
2928 if (r_novis.integer || !Mod_Q1BSP_GetPVS(model, org))
2930 memset(pvsbuffer, 0xFF, bytes);
2933 memset(pvsbuffer, 0, bytes);
2934 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brushq1.nodes);
2938 static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
2943 VectorSubtract(inmaxs, inmins, size);
2944 if (cmodel->brush.ishlbsp)
2947 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
2948 else if (size[0] <= 32)
2950 if (size[2] < 54) // pick the nearest of 36 or 72
2951 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
2953 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
2956 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
2961 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
2962 else if (size[0] <= 32)
2963 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
2965 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
2967 VectorCopy(inmins, outmins);
2968 VectorAdd(inmins, hull->clip_size, outmaxs);
2972 void Mod_Q1BSP_RecursiveGetVisible(mnode_t *node, model_t *model, const vec3_t point, const vec3_t mins, const vec3_t maxs, int maxleafs, mleaf_t *leaflist, int *numleafs, int maxsurfaces, msurface_t *surfacelist, int *numsurfaces, const qbyte *pvs)
2977 if (!BoxesOverlap(node->mins, node->maxs, mins, maxs))
2981 Mod_Q1BSP_RecursiveGetVisible(node->children[0], model, point, mins, maxs, maxleafs, leaflist, numleafs, maxsurfaces, surfacelist, numsurfaces, pvs);
2982 node = node->children[1];
2984 leaf = (mleaf_t *)node;
2985 if ((pvs == NULL || CHECKPVSBIT(pvs, leaf->clusterindex)))
2989 if (maxleafs && *numleafs < maxleafs)
2990 leaflist[(*numleafs)++] = leaf;
2993 for (marksurfacenum = 0;marksurfacenum < leaf->nummarksurfaces;marksurfacenum++)
2995 surf = model->brushq1.surfaces + leaf->firstmarksurface[marksurfacenum];
2996 if (surf->shadowmark != shadowmarkcount)
2998 surf->shadowmark = shadowmarkcount;
2999 if (BoxesOverlap(mins, maxs, surf->poly_mins, surf->poly_maxs) && ((surf->flags & SURF_PLANEBACK) ? PlaneDiff(point, surf->plane) < 0 : PlaneDiff(point, surf->plane) > 0) && *numsurfaces < maxsurfaces)
3000 surfacelist[(*numsurfaces)++] = surf;
3007 void Mod_Q1BSP_GetVisible(model_t *model, const vec3_t point, const vec3_t mins, const vec3_t maxs, int maxleafs, mleaf_t *leaflist, int *numleafs, int maxsurfaces, msurface_t *surfacelist, int *numsurfaces)
3009 // FIXME: support portals
3014 pvs = ent->model->brush.GetPVS(ent->model, relativelightorigin);
3015 Mod_Q1BSP_RecursiveGetVisible(ent->model->brushq1.nodes + ent->model->brushq1.firstclipnode, model, point, mins, maxs, maxleafs, leaflist, numleafs, maxsurfaces, surfacelist, numsurfaces);
3019 extern void R_Q1BSP_DrawSky(entity_render_t *ent);
3020 extern void R_Q1BSP_Draw(entity_render_t *ent);
3021 extern void R_Q1BSP_GetLightInfo(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, vec3_t outmins, vec3_t outmaxs, int *outclusterlist, qbyte *outclusterpvs, int *outnumclusterspointer, int *outsurfacelist, qbyte *outsurfacepvs, int *outnumsurfacespointer);
3022 extern void R_Q1BSP_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist);
3023 extern void R_Q1BSP_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltolight, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz, rtexture_t *lightcubemap, vec_t ambientscale, vec_t diffusescale, vec_t specularscale, int numsurfaces, const int *surfacelist);
3024 void Mod_Q1BSP_Load(model_t *mod, void *buffer)
3029 mempool_t *mainmempool;
3030 float dist, modelyawradius, modelradius, *vec;
3032 int numshadowmeshtriangles;
3034 mod->type = mod_brushq1;
3036 header = (dheader_t *)buffer;
3038 i = LittleLong(header->version);
3039 if (i != BSPVERSION && i != 30)
3040 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i(Quake) or 30(HalfLife))", mod->name, i, BSPVERSION);
3041 mod->brush.ishlbsp = i == 30;
3043 mod->soundfromcenter = true;
3044 mod->TraceBox = Mod_Q1BSP_TraceBox;
3045 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3046 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3047 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
3048 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
3049 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
3050 mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
3051 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
3052 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3053 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3054 mod->brushq1.PointInLeaf = Mod_Q1BSP_PointInLeaf;
3055 mod->brushq1.BuildPVSTextureChains = Mod_Q1BSP_BuildPVSTextureChains;
3057 if (loadmodel->isworldmodel)
3058 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3060 // swap all the lumps
3061 mod_base = (qbyte *)header;
3063 header->version = LittleLong(header->version);
3064 for (i = 0;i < HEADER_LUMPS;i++)
3066 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
3067 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
3072 // store which lightmap format to use
3073 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3075 Mod_Q1BSP_LoadEntities(&header->lumps[LUMP_ENTITIES]);
3076 Mod_Q1BSP_LoadVertexes(&header->lumps[LUMP_VERTEXES]);
3077 Mod_Q1BSP_LoadEdges(&header->lumps[LUMP_EDGES]);
3078 Mod_Q1BSP_LoadSurfedges(&header->lumps[LUMP_SURFEDGES]);
3079 Mod_Q1BSP_LoadTextures(&header->lumps[LUMP_TEXTURES]);
3080 Mod_Q1BSP_LoadLighting(&header->lumps[LUMP_LIGHTING]);
3081 Mod_Q1BSP_LoadPlanes(&header->lumps[LUMP_PLANES]);
3082 Mod_Q1BSP_LoadTexinfo(&header->lumps[LUMP_TEXINFO]);
3083 Mod_Q1BSP_LoadFaces(&header->lumps[LUMP_FACES]);
3084 Mod_Q1BSP_LoadMarksurfaces(&header->lumps[LUMP_MARKSURFACES]);
3085 Mod_Q1BSP_LoadVisibility(&header->lumps[LUMP_VISIBILITY]);
3086 // load submodels before leafs because they contain the number of vis leafs
3087 Mod_Q1BSP_LoadSubmodels(&header->lumps[LUMP_MODELS]);
3088 Mod_Q1BSP_LoadLeafs(&header->lumps[LUMP_LEAFS]);
3089 Mod_Q1BSP_LoadNodes(&header->lumps[LUMP_NODES]);
3090 Mod_Q1BSP_LoadClipnodes(&header->lumps[LUMP_CLIPNODES]);
3092 if (!mod->brushq1.lightdata)
3093 mod->brush.LightPoint = NULL;
3095 if (mod->brushq1.data_compressedpvs)
3096 Mem_Free(mod->brushq1.data_compressedpvs);
3097 mod->brushq1.data_compressedpvs = NULL;
3098 mod->brushq1.num_compressedpvs = 0;
3100 Mod_Q1BSP_MakeHull0();
3101 Mod_Q1BSP_MakePortals();
3103 mod->numframes = 2; // regular and alternate animation
3106 mainmempool = mod->mempool;
3108 Mod_Q1BSP_LoadLightList();
3110 // make a single combined shadow mesh to allow optimized shadow volume creation
3111 numshadowmeshtriangles = 0;
3112 for (j = 0, surf = loadmodel->brushq1.surfaces;j < loadmodel->brushq1.numsurfaces;j++, surf++)
3114 surf->num_firstshadowmeshtriangle = numshadowmeshtriangles;
3115 numshadowmeshtriangles += surf->mesh.num_triangles;
3117 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
3118 for (j = 0, surf = loadmodel->brushq1.surfaces;j < loadmodel->brushq1.numsurfaces;j++, surf++)
3119 Mod_ShadowMesh_AddMesh(loadmodel->mempool, loadmodel->brush.shadowmesh, NULL, NULL, NULL, surf->mesh.data_vertex3f, NULL, NULL, NULL, NULL, surf->mesh.num_triangles, surf->mesh.data_element3i);
3120 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
3121 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
3123 if (loadmodel->brush.numsubmodels)
3124 loadmodel->brush.submodels = Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
3126 // LordHavoc: to clear the fog around the original quake submodel code, I
3128 // first of all, some background info on the submodels:
3129 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
3130 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
3131 // now the weird for loop itself:
3132 // the loop functions in an odd way, on each iteration it sets up the
3133 // current 'mod' model (which despite the confusing code IS the model of
3134 // the number i), at the end of the loop it duplicates the model to become
3135 // the next submodel, and loops back to set up the new submodel.
3137 // LordHavoc: now the explanation of my sane way (which works identically):
3138 // set up the world model, then on each submodel copy from the world model
3139 // and set up the submodel with the respective model info.
3140 for (i = 0;i < mod->brush.numsubmodels;i++)
3142 // LordHavoc: this code was originally at the end of this loop, but
3143 // has been transformed to something more readable at the start here.
3148 // LordHavoc: only register submodels if it is the world
3149 // (prevents external bsp models from replacing world submodels with
3151 if (!loadmodel->isworldmodel)
3153 // duplicate the basic information
3154 sprintf(name, "*%i", i);
3155 mod = Mod_FindName(name);
3156 // copy the base model to this one
3158 // rename the clone back to its proper name
3159 strcpy(mod->name, name);
3160 // textures and memory belong to the main model
3161 mod->texturepool = NULL;
3162 mod->mempool = NULL;
3165 if (loadmodel->brush.submodels)
3166 loadmodel->brush.submodels[i] = mod;
3168 bm = &mod->brushq1.submodels[i];
3170 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
3171 for (j=1 ; j<MAX_MAP_HULLS ; j++)
3173 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
3174 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
3177 mod->firstmodelsurface = bm->firstface;
3178 mod->nummodelsurfaces = bm->numfaces;
3180 // make the model surface list (used by shadowing/lighting)
3181 mod->surfacelist = Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
3182 for (j = 0;j < mod->nummodelsurfaces;j++)
3183 mod->surfacelist[j] = mod->firstmodelsurface + j;
3185 // this gets altered below if sky is used
3186 mod->DrawSky = NULL;
3187 mod->Draw = R_Q1BSP_Draw;
3188 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
3189 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
3190 mod->DrawLight = R_Q1BSP_DrawLight;
3193 mod->brush.GetPVS = NULL;
3194 mod->brush.FatPVS = NULL;
3195 mod->brush.BoxTouchingPVS = NULL;
3196 mod->brush.LightPoint = NULL;
3197 mod->brush.AmbientSoundLevelsForPoint = NULL;
3199 mod->brushq1.pvstexturechains = Mem_Alloc(loadmodel->mempool, mod->brushq1.numtextures * sizeof(msurface_t **));
3200 mod->brushq1.pvstexturechainsbuffer = Mem_Alloc(loadmodel->mempool,(mod->nummodelsurfaces + mod->brushq1.numtextures) * sizeof(msurface_t *));
3201 mod->brushq1.pvstexturechainslength = Mem_Alloc(loadmodel->mempool, mod->brushq1.numtextures * sizeof(int));
3202 Mod_Q1BSP_BuildPVSTextureChains(mod);
3203 Mod_Q1BSP_BuildLightmapUpdateChains(loadmodel->mempool, mod);
3204 if (mod->nummodelsurfaces)
3206 // LordHavoc: calculate bmodel bounding box rather than trusting what it says
3207 mod->normalmins[0] = mod->normalmins[1] = mod->normalmins[2] = 1000000000.0f;
3208 mod->normalmaxs[0] = mod->normalmaxs[1] = mod->normalmaxs[2] = -1000000000.0f;
3211 for (j = 0, surf = &mod->brushq1.surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surf++)
3213 // we only need to have a drawsky function if it is used(usually only on world model)
3214 if (surf->texinfo->texture->flags & SURF_DRAWSKY)
3215 mod->DrawSky = R_Q1BSP_DrawSky;
3216 // LordHavoc: submodels always clip, even if water
3217 if (mod->brush.numsubmodels - 1)
3218 surf->flags |= SURF_SOLIDCLIP;
3219 // calculate bounding shapes
3220 for (k = 0, vec = surf->mesh.data_vertex3f;k < surf->mesh.num_vertices;k++, vec += 3)
3222 if (mod->normalmins[0] > vec[0]) mod->normalmins[0] = vec[0];
3223 if (mod->normalmins[1] > vec[1]) mod->normalmins[1] = vec[1];
3224 if (mod->normalmins[2] > vec[2]) mod->normalmins[2] = vec[2];
3225 if (mod->normalmaxs[0] < vec[0]) mod->normalmaxs[0] = vec[0];
3226 if (mod->normalmaxs[1] < vec[1]) mod->normalmaxs[1] = vec[1];
3227 if (mod->normalmaxs[2] < vec[2]) mod->normalmaxs[2] = vec[2];
3228 dist = vec[0]*vec[0]+vec[1]*vec[1];
3229 if (modelyawradius < dist)
3230 modelyawradius = dist;
3231 dist += vec[2]*vec[2];
3232 if (modelradius < dist)
3236 modelyawradius = sqrt(modelyawradius);
3237 modelradius = sqrt(modelradius);
3238 mod->yawmins[0] = mod->yawmins[1] = - (mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius);
3239 mod->yawmins[2] = mod->normalmins[2];
3240 mod->yawmaxs[2] = mod->normalmaxs[2];
3241 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
3242 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
3243 mod->radius = modelradius;
3244 mod->radius2 = modelradius * modelradius;
3248 // LordHavoc: empty submodel(lacrima.bsp has such a glitch)
3249 Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
3251 Mod_Q1BSP_BuildSurfaceNeighbors(mod->brushq1.surfaces + mod->firstmodelsurface, mod->nummodelsurfaces, loadmodel->mempool);
3253 mod->brushq1.num_visleafs = bm->visleafs;
3256 Mod_Q1BSP_LoadMapBrushes();
3258 //Mod_Q1BSP_ProcessLightList();
3260 if (developer.integer)
3261 Con_Printf("Some stats for q1bsp model \"%s\": %i faces, %i nodes, %i leafs, %i visleafs, %i visleafportals\n", loadmodel->name, loadmodel->brushq1.numsurfaces, loadmodel->brushq1.numnodes, loadmodel->brushq1.num_leafs, loadmodel->brushq1.num_visleafs, loadmodel->brushq1.numportals);
3264 static void Mod_Q2BSP_LoadEntities(lump_t *l)
3268 static void Mod_Q2BSP_LoadPlanes(lump_t *l)
3275 in = (void *)(mod_base + l->fileofs);
3276 if (l->filelen % sizeof(*in))
3277 Host_Error("Mod_Q2BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
3278 count = l->filelen / sizeof(*in);
3279 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3282 loadmodel->num = count;
3284 for (i = 0;i < count;i++, in++, out++)
3290 static void Mod_Q2BSP_LoadVertices(lump_t *l)
3297 in = (void *)(mod_base + l->fileofs);
3298 if (l->filelen % sizeof(*in))
3299 Host_Error("Mod_Q2BSP_LoadVertices: funny lump size in %s",loadmodel->name);
3300 count = l->filelen / sizeof(*in);
3301 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3304 loadmodel->num = count;
3306 for (i = 0;i < count;i++, in++, out++)
3312 static void Mod_Q2BSP_LoadVisibility(lump_t *l)
3319 in = (void *)(mod_base + l->fileofs);
3320 if (l->filelen % sizeof(*in))
3321 Host_Error("Mod_Q2BSP_LoadVisibility: funny lump size in %s",loadmodel->name);
3322 count = l->filelen / sizeof(*in);
3323 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3326 loadmodel->num = count;
3328 for (i = 0;i < count;i++, in++, out++)
3334 static void Mod_Q2BSP_LoadNodes(lump_t *l)
3341 in = (void *)(mod_base + l->fileofs);
3342 if (l->filelen % sizeof(*in))
3343 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
3344 count = l->filelen / sizeof(*in);
3345 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3348 loadmodel->num = count;
3350 for (i = 0;i < count;i++, in++, out++)
3356 static void Mod_Q2BSP_LoadTexInfo(lump_t *l)
3363 in = (void *)(mod_base + l->fileofs);
3364 if (l->filelen % sizeof(*in))
3365 Host_Error("Mod_Q2BSP_LoadTexInfo: funny lump size in %s",loadmodel->name);
3366 count = l->filelen / sizeof(*in);
3367 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3370 loadmodel->num = count;
3372 for (i = 0;i < count;i++, in++, out++)
3378 static void Mod_Q2BSP_LoadFaces(lump_t *l)
3385 in = (void *)(mod_base + l->fileofs);
3386 if (l->filelen % sizeof(*in))
3387 Host_Error("Mod_Q2BSP_LoadFaces: funny lump size in %s",loadmodel->name);
3388 count = l->filelen / sizeof(*in);
3389 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3392 loadmodel->num = count;
3394 for (i = 0;i < count;i++, in++, out++)
3400 static void Mod_Q2BSP_LoadLighting(lump_t *l)
3407 in = (void *)(mod_base + l->fileofs);
3408 if (l->filelen % sizeof(*in))
3409 Host_Error("Mod_Q2BSP_LoadLighting: funny lump size in %s",loadmodel->name);
3410 count = l->filelen / sizeof(*in);
3411 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3414 loadmodel->num = count;
3416 for (i = 0;i < count;i++, in++, out++)
3422 static void Mod_Q2BSP_LoadLeafs(lump_t *l)
3429 in = (void *)(mod_base + l->fileofs);
3430 if (l->filelen % sizeof(*in))
3431 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
3432 count = l->filelen / sizeof(*in);
3433 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3436 loadmodel->num = count;
3438 for (i = 0;i < count;i++, in++, out++)
3444 static void Mod_Q2BSP_LoadLeafFaces(lump_t *l)
3451 in = (void *)(mod_base + l->fileofs);
3452 if (l->filelen % sizeof(*in))
3453 Host_Error("Mod_Q2BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
3454 count = l->filelen / sizeof(*in);
3455 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3458 loadmodel->num = count;
3460 for (i = 0;i < count;i++, in++, out++)
3466 static void Mod_Q2BSP_LoadLeafBrushes(lump_t *l)
3473 in = (void *)(mod_base + l->fileofs);
3474 if (l->filelen % sizeof(*in))
3475 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
3476 count = l->filelen / sizeof(*in);
3477 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3480 loadmodel->num = count;
3482 for (i = 0;i < count;i++, in++, out++)
3488 static void Mod_Q2BSP_LoadEdges(lump_t *l)
3495 in = (void *)(mod_base + l->fileofs);
3496 if (l->filelen % sizeof(*in))
3497 Host_Error("Mod_Q2BSP_LoadEdges: funny lump size in %s",loadmodel->name);
3498 count = l->filelen / sizeof(*in);
3499 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3502 loadmodel->num = count;
3504 for (i = 0;i < count;i++, in++, out++)
3510 static void Mod_Q2BSP_LoadSurfEdges(lump_t *l)
3517 in = (void *)(mod_base + l->fileofs);
3518 if (l->filelen % sizeof(*in))
3519 Host_Error("Mod_Q2BSP_LoadSurfEdges: funny lump size in %s",loadmodel->name);
3520 count = l->filelen / sizeof(*in);
3521 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3524 loadmodel->num = count;
3526 for (i = 0;i < count;i++, in++, out++)
3532 static void Mod_Q2BSP_LoadBrushes(lump_t *l)
3539 in = (void *)(mod_base + l->fileofs);
3540 if (l->filelen % sizeof(*in))
3541 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
3542 count = l->filelen / sizeof(*in);
3543 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3546 loadmodel->num = count;
3548 for (i = 0;i < count;i++, in++, out++)
3554 static void Mod_Q2BSP_LoadBrushSides(lump_t *l)
3561 in = (void *)(mod_base + l->fileofs);
3562 if (l->filelen % sizeof(*in))
3563 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
3564 count = l->filelen / sizeof(*in);
3565 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3568 loadmodel->num = count;
3570 for (i = 0;i < count;i++, in++, out++)
3576 static void Mod_Q2BSP_LoadAreas(lump_t *l)
3583 in = (void *)(mod_base + l->fileofs);
3584 if (l->filelen % sizeof(*in))
3585 Host_Error("Mod_Q2BSP_LoadAreas: funny lump size in %s",loadmodel->name);
3586 count = l->filelen / sizeof(*in);
3587 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3590 loadmodel->num = count;
3592 for (i = 0;i < count;i++, in++, out++)
3598 static void Mod_Q2BSP_LoadAreaPortals(lump_t *l)
3605 in = (void *)(mod_base + l->fileofs);
3606 if (l->filelen % sizeof(*in))
3607 Host_Error("Mod_Q2BSP_LoadAreaPortals: funny lump size in %s",loadmodel->name);
3608 count = l->filelen / sizeof(*in);
3609 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3612 loadmodel->num = count;
3614 for (i = 0;i < count;i++, in++, out++)
3620 static void Mod_Q2BSP_LoadModels(lump_t *l)
3627 in = (void *)(mod_base + l->fileofs);
3628 if (l->filelen % sizeof(*in))
3629 Host_Error("Mod_Q2BSP_LoadModels: funny lump size in %s",loadmodel->name);
3630 count = l->filelen / sizeof(*in);
3631 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3634 loadmodel->num = count;
3636 for (i = 0;i < count;i++, in++, out++)
3642 void static Mod_Q2BSP_Load(model_t *mod, void *buffer)
3645 q2dheader_t *header;
3647 Host_Error("Mod_Q2BSP_Load: not yet implemented\n");
3649 mod->type = mod_brushq2;
3651 header = (q2dheader_t *)buffer;
3653 i = LittleLong(header->version);
3654 if (i != Q2BSPVERSION)
3655 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
3656 mod->brush.ishlbsp = false;
3657 if (loadmodel->isworldmodel)
3658 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3660 mod_base = (qbyte *)header;
3662 // swap all the lumps
3663 for (i = 0;i < (int) sizeof(*header) / 4;i++)
3664 ((int *)header)[i] = LittleLong(((int *)header)[i]);
3666 // store which lightmap format to use
3667 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3669 Mod_Q2BSP_LoadEntities(&header->lumps[Q2LUMP_ENTITIES]);
3670 Mod_Q2BSP_LoadPlanes(&header->lumps[Q2LUMP_PLANES]);
3671 Mod_Q2BSP_LoadVertices(&header->lumps[Q2LUMP_VERTEXES]);
3672 Mod_Q2BSP_LoadVisibility(&header->lumps[Q2LUMP_VISIBILITY]);
3673 Mod_Q2BSP_LoadNodes(&header->lumps[Q2LUMP_NODES]);
3674 Mod_Q2BSP_LoadTexInfo(&header->lumps[Q2LUMP_TEXINFO]);
3675 Mod_Q2BSP_LoadFaces(&header->lumps[Q2LUMP_FACES]);
3676 Mod_Q2BSP_LoadLighting(&header->lumps[Q2LUMP_LIGHTING]);
3677 Mod_Q2BSP_LoadLeafs(&header->lumps[Q2LUMP_LEAFS]);
3678 Mod_Q2BSP_LoadLeafFaces(&header->lumps[Q2LUMP_LEAFFACES]);
3679 Mod_Q2BSP_LoadLeafBrushes(&header->lumps[Q2LUMP_LEAFBRUSHES]);
3680 Mod_Q2BSP_LoadEdges(&header->lumps[Q2LUMP_EDGES]);
3681 Mod_Q2BSP_LoadSurfEdges(&header->lumps[Q2LUMP_SURFEDGES]);
3682 Mod_Q2BSP_LoadBrushes(&header->lumps[Q2LUMP_BRUSHES]);
3683 Mod_Q2BSP_LoadBrushSides(&header->lumps[Q2LUMP_BRUSHSIDES]);
3684 Mod_Q2BSP_LoadAreas(&header->lumps[Q2LUMP_AREAS]);
3685 Mod_Q2BSP_LoadAreaPortals(&header->lumps[Q2LUMP_AREAPORTALS]);
3686 // LordHavoc: must go last because this makes the submodels
3687 Mod_Q2BSP_LoadModels(&header->lumps[Q2LUMP_MODELS]);
3690 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents);
3691 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents);
3693 static void Mod_Q3BSP_LoadEntities(lump_t *l)
3696 char key[128], value[4096];
3698 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
3699 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
3700 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
3703 loadmodel->brush.entities = Mem_Alloc(loadmodel->mempool, l->filelen);
3704 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
3705 data = loadmodel->brush.entities;
3706 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
3707 if (data && COM_ParseToken(&data, false) && com_token[0] == '{')
3711 if (!COM_ParseToken(&data, false))
3713 if (com_token[0] == '}')
3714 break; // end of worldspawn
3715 if (com_token[0] == '_')
3716 strcpy(key, com_token + 1);
3718 strcpy(key, com_token);
3719 while (key[strlen(key)-1] == ' ') // remove trailing spaces
3720 key[strlen(key)-1] = 0;
3721 if (!COM_ParseToken(&data, false))
3723 strcpy(value, com_token);
3724 if (!strcmp("gridsize", key))
3726 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
3727 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
3733 static void Mod_Q3BSP_LoadTextures(lump_t *l)
3742 int flags, flags2, numparameters, passnumber;
3743 char shadername[Q3PATHLENGTH];
3744 char sky[Q3PATHLENGTH];
3745 char firstpasstexturename[Q3PATHLENGTH];
3746 char parameter[4][Q3PATHLENGTH];
3748 in = (void *)(mod_base + l->fileofs);
3749 if (l->filelen % sizeof(*in))
3750 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
3751 count = l->filelen / sizeof(*in);
3752 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3754 loadmodel->brushq3.data_textures = out;
3755 loadmodel->brushq3.num_textures = count;
3757 for (i = 0;i < count;i++, in++, out++)
3760 strlcpy (out->name, in->name, sizeof (out->name));
3761 out->surfaceflags = LittleLong(in->surfaceflags);
3762 out->nativecontents = LittleLong(in->contents);
3763 out->supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, out->nativecontents);
3764 out->surfaceparms = -1;
3767 // do a quick parse of shader files to get surfaceparms
3768 if ((search = FS_Search("scripts/*.shader", true, false)))
3770 for (i = 0;i < search->numfilenames;i++)
3772 if ((f = FS_LoadFile(search->filenames[i], tempmempool, false)))
3775 while (COM_ParseToken(&text, false))
3777 strlcpy (shadername, com_token, sizeof (shadername));
3782 firstpasstexturename[0] = 0;
3783 if (COM_ParseToken(&text, false) && !strcasecmp(com_token, "{"))
3785 while (COM_ParseToken(&text, false))
3787 if (!strcasecmp(com_token, "}"))
3789 else if (!strcasecmp(com_token, "{"))
3791 while (COM_ParseToken(&text, false))
3793 if (!strcasecmp(com_token, "}"))
3795 if (!strcasecmp(com_token, "\n"))
3798 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
3802 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
3803 numparameters = j + 1;
3805 if (!COM_ParseToken(&text, true))
3808 if (developer.integer >= 2)
3810 Con_Printf("%s %i: ", shadername, passnumber);
3811 for (j = 0;j < numparameters;j++)
3812 Con_Printf(" %s", parameter[j]);
3815 if (passnumber == 0 && numparameters >= 1)
3817 if (!strcasecmp(parameter[0], "blendfunc"))
3819 if (numparameters == 2 && !strcasecmp(parameter[1], "add"))
3820 flags2 |= Q3TEXTUREFLAG_ADDITIVE;
3821 else if (numparameters == 3 && !strcasecmp(parameter[1], "gl_one") && !strcasecmp(parameter[2], "gl_one"))
3822 flags2 |= Q3TEXTUREFLAG_ADDITIVE;
3823 else if (numparameters == 3 && !strcasecmp(parameter[1], "gl_src_alpha") && !strcasecmp(parameter[2], "gl_one"))
3824 flags2 |= Q3TEXTUREFLAG_ADDITIVE;
3826 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
3827 strlcpy(firstpasstexturename, parameter[1], sizeof(firstpasstexturename));
3828 else if (numparameters >= 3 && !strcasecmp(parameter[0], "animmap"))
3829 strlcpy(firstpasstexturename, parameter[2], sizeof(firstpasstexturename));
3831 if (!strcasecmp(parameter[0], "alphafunc"))
3832 flags2 |= Q3TEXTUREFLAG_ALPHATEST;
3833 // break out a level if it was }
3834 if (!strcasecmp(com_token, "}"))
3841 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
3845 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
3846 numparameters = j + 1;
3848 if (!COM_ParseToken(&text, true))
3851 if (i == 0 && !strcasecmp(com_token, "}"))
3853 if (developer.integer >= 2)
3855 Con_Printf("%s: ", shadername);
3856 for (j = 0;j < numparameters;j++)
3857 Con_Printf(" %s", parameter[j]);
3860 if (numparameters < 1)
3862 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
3864 if (!strcasecmp(parameter[1], "alphashadow"))
3865 flags |= Q3SURFACEPARM_ALPHASHADOW;
3866 else if (!strcasecmp(parameter[1], "areaportal"))
3867 flags |= Q3SURFACEPARM_AREAPORTAL;
3868 else if (!strcasecmp(parameter[1], "clusterportal"))
3869 flags |= Q3SURFACEPARM_CLUSTERPORTAL;
3870 else if (!strcasecmp(parameter[1], "detail"))
3871 flags |= Q3SURFACEPARM_DETAIL;
3872 else if (!strcasecmp(parameter[1], "donotenter"))
3873 flags |= Q3SURFACEPARM_DONOTENTER;
3874 else if (!strcasecmp(parameter[1], "fog"))
3875 flags |= Q3SURFACEPARM_FOG;
3876 else if (!strcasecmp(parameter[1], "lava"))
3877 flags |= Q3SURFACEPARM_LAVA;
3878 else if (!strcasecmp(parameter[1], "lightfilter"))
3879 flags |= Q3SURFACEPARM_LIGHTFILTER;
3880 else if (!strcasecmp(parameter[1], "metalsteps"))
3881 flags |= Q3SURFACEPARM_METALSTEPS;
3882 else if (!strcasecmp(parameter[1], "nodamage"))
3883 flags |= Q3SURFACEPARM_NODAMAGE;
3884 else if (!strcasecmp(parameter[1], "nodlight"))
3885 flags |= Q3SURFACEPARM_NODLIGHT;
3886 else if (!strcasecmp(parameter[1], "nodraw"))
3887 flags |= Q3SURFACEPARM_NODRAW;
3888 else if (!strcasecmp(parameter[1], "nodrop"))
3889 flags |= Q3SURFACEPARM_NODROP;
3890 else if (!strcasecmp(parameter[1], "noimpact"))
3891 flags |= Q3SURFACEPARM_NOIMPACT;
3892 else if (!strcasecmp(parameter[1], "nolightmap"))
3893 flags |= Q3SURFACEPARM_NOLIGHTMAP;
3894 else if (!strcasecmp(parameter[1], "nomarks"))
3895 flags |= Q3SURFACEPARM_NOMARKS;
3896 else if (!strcasecmp(parameter[1], "nomipmaps"))
3897 flags |= Q3SURFACEPARM_NOMIPMAPS;
3898 else if (!strcasecmp(parameter[1], "nonsolid"))
3899 flags |= Q3SURFACEPARM_NONSOLID;
3900 else if (!strcasecmp(parameter[1], "origin"))
3901 flags |= Q3SURFACEPARM_ORIGIN;
3902 else if (!strcasecmp(parameter[1], "playerclip"))
3903 flags |= Q3SURFACEPARM_PLAYERCLIP;
3904 else if (!strcasecmp(parameter[1], "sky"))
3905 flags |= Q3SURFACEPARM_SKY;
3906 else if (!strcasecmp(parameter[1], "slick"))
3907 flags |= Q3SURFACEPARM_SLICK;
3908 else if (!strcasecmp(parameter[1], "slime"))
3909 flags |= Q3SURFACEPARM_SLIME;
3910 else if (!strcasecmp(parameter[1], "structural"))
3911 flags |= Q3SURFACEPARM_STRUCTURAL;
3912 else if (!strcasecmp(parameter[1], "trans"))
3913 flags |= Q3SURFACEPARM_TRANS;
3914 else if (!strcasecmp(parameter[1], "water"))
3915 flags |= Q3SURFACEPARM_WATER;
3916 else if (!strcasecmp(parameter[1], "pointlight"))
3917 flags |= Q3SURFACEPARM_POINTLIGHT;
3919 Con_Printf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[i], parameter[1]);
3921 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
3922 strlcpy(sky, parameter[1], sizeof(sky));
3923 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
3925 if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
3926 strlcpy(sky, parameter[1], sizeof(sky));
3928 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
3930 if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
3931 flags2 |= Q3TEXTUREFLAG_TWOSIDED;
3933 else if (!strcasecmp(parameter[0], "nomipmaps"))
3934 flags2 |= Q3TEXTUREFLAG_NOMIPMAPS;
3935 else if (!strcasecmp(parameter[0], "nopicmip"))
3936 flags2 |= Q3TEXTUREFLAG_NOPICMIP;
3937 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
3939 if (!strcasecmp(parameter[1], "autosprite") && numparameters == 2)
3940 flags2 |= Q3TEXTUREFLAG_AUTOSPRITE;
3941 if (!strcasecmp(parameter[1], "autosprite2") && numparameters == 2)
3942 flags2 |= Q3TEXTUREFLAG_AUTOSPRITE2;
3945 // force transparent render path for a number of odd
3946 // shader effects to avoid bogging down the normal
3947 // render path unnecessarily
3948 if (flags2 & (Q3TEXTUREFLAG_ADDITIVE | Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2 | Q3TEXTUREFLAG_ALPHATEST))
3949 flags |= Q3SURFACEPARM_TRANS;
3950 // add shader to list (shadername and flags)
3951 // actually here we just poke into the texture settings
3952 for (j = 0, out = loadmodel->brushq3.data_textures;j < loadmodel->brushq3.num_textures;j++, out++)
3954 if (!strcasecmp(out->name, shadername))
3956 out->surfaceparms = flags;
3957 out->textureflags = flags2;
3958 strlcpy(out->firstpasstexturename, firstpasstexturename, sizeof(out->firstpasstexturename));
3959 if ((flags & Q3SURFACEPARM_SKY) && sky[0])
3961 // quake3 seems to append a _ to the skybox name, so this must do so as well
3962 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", sky);
3969 Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[i], com_token);
3980 for (j = 0, out = loadmodel->brushq3.data_textures;j < loadmodel->brushq3.num_textures;j++, out++)
3982 if (out->surfaceparms == -1)
3985 Con_DPrintf("%s: No shader found for texture \"%s\"\n", loadmodel->name, out->name);
3986 out->surfaceparms = 0;
3987 // these are defaults
3988 //if (!strncmp(out->name, "textures/skies/", 15))
3989 // out->surfaceparms |= Q3SURFACEPARM_SKY;
3990 //if (!strcmp(out->name, "caulk") || !strcmp(out->name, "common/caulk") || !strcmp(out->name, "textures/common/caulk")
3991 // || !strcmp(out->name, "nodraw") || !strcmp(out->name, "common/nodraw") || !strcmp(out->name, "textures/common/nodraw"))
3992 // out->surfaceparms |= Q3SURFACEPARM_NODRAW;
3993 //if (R_TextureHasAlpha(out->skin.base))
3994 // out->surfaceparms |= Q3SURFACEPARM_TRANS;
3996 if (!Mod_LoadSkinFrame(&out->skin, out->name, (((out->textureflags & Q3TEXTUREFLAG_NOMIPMAPS) || (out->surfaceparms & Q3SURFACEPARM_NOMIPMAPS)) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | (out->textureflags & Q3TEXTUREFLAG_NOPICMIP ? 0 : TEXF_PICMIP), false, true, true))
3997 if (!Mod_LoadSkinFrame(&out->skin, out->firstpasstexturename, (((out->textureflags & Q3TEXTUREFLAG_NOMIPMAPS) || (out->surfaceparms & Q3SURFACEPARM_NOMIPMAPS)) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | (out->textureflags & Q3TEXTUREFLAG_NOPICMIP ? 0 : TEXF_PICMIP), false, true, true))
3998 Con_Printf("%s: texture loading for shader \"%s\" failed (first layer \"%s\" not found either)\n", loadmodel->name, out->name, out->firstpasstexturename);
4001 Con_DPrintf("%s: %i textures missing shaders\n", loadmodel->name, c);
4004 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
4010 in = (void *)(mod_base + l->fileofs);
4011 if (l->filelen % sizeof(*in))
4012 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
4013 count = l->filelen / sizeof(*in);
4014 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4016 loadmodel->brushq3.data_planes = out;
4017 loadmodel->brushq3.num_planes = count;
4019 for (i = 0;i < count;i++, in++, out++)
4021 out->normal[0] = LittleLong(in->normal[0]);
4022 out->normal[1] = LittleLong(in->normal[1]);
4023 out->normal[2] = LittleLong(in->normal[2]);
4024 out->dist = LittleLong(in->dist);
4029 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
4032 q3mbrushside_t *out;
4035 in = (void *)(mod_base + l->fileofs);
4036 if (l->filelen % sizeof(*in))
4037 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4038 count = l->filelen / sizeof(*in);
4039 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4041 loadmodel->brushq3.data_brushsides = out;
4042 loadmodel->brushq3.num_brushsides = count;
4044 for (i = 0;i < count;i++, in++, out++)
4046 n = LittleLong(in->planeindex);
4047 if (n < 0 || n >= loadmodel->brushq3.num_planes)
4048 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)\n", n, loadmodel->brushq3.num_planes);
4049 out->plane = loadmodel->brushq3.data_planes + n;
4050 n = LittleLong(in->textureindex);
4051 if (n < 0 || n >= loadmodel->brushq3.num_textures)
4052 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)\n", n, loadmodel->brushq3.num_textures);
4053 out->texture = loadmodel->brushq3.data_textures + n;
4057 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
4061 int i, j, n, c, count, maxplanes;
4064 in = (void *)(mod_base + l->fileofs);
4065 if (l->filelen % sizeof(*in))
4066 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4067 count = l->filelen / sizeof(*in);
4068 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4070 loadmodel->brushq3.data_brushes = out;
4071 loadmodel->brushq3.num_brushes = count;
4076 for (i = 0;i < count;i++, in++, out++)
4078 n = LittleLong(in->firstbrushside);
4079 c = LittleLong(in->numbrushsides);
4080 if (n < 0 || n + c > loadmodel->brushq3.num_brushsides)
4081 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)\n", n, n + c, loadmodel->brushq3.num_brushsides);
4082 out->firstbrushside = loadmodel->brushq3.data_brushsides + n;
4083 out->numbrushsides = c;
4084 n = LittleLong(in->textureindex);
4085 if (n < 0 || n >= loadmodel->brushq3.num_textures)
4086 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)\n", n, loadmodel->brushq3.num_textures);
4087 out->texture = loadmodel->brushq3.data_textures + n;
4089 // make a list of mplane_t structs to construct a colbrush from
4090 if (maxplanes < out->numbrushsides)
4092 maxplanes = out->numbrushsides;
4095 planes = Mem_Alloc(tempmempool, sizeof(mplane_t) * maxplanes);
4097 for (j = 0;j < out->numbrushsides;j++)
4099 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4100 planes[j].dist = out->firstbrushside[j].plane->dist;
4102 // make the colbrush from the planes
4103 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents);
4109 static void Mod_Q3BSP_LoadEffects(lump_t *l)
4115 in = (void *)(mod_base + l->fileofs);
4116 if (l->filelen % sizeof(*in))
4117 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
4118 count = l->filelen / sizeof(*in);
4119 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4121 loadmodel->brushq3.data_effects = out;
4122 loadmodel->brushq3.num_effects = count;
4124 for (i = 0;i < count;i++, in++, out++)
4126 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
4127 n = LittleLong(in->brushindex);
4128 if (n < 0 || n >= loadmodel->brushq3.num_brushes)
4129 Host_Error("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes)\n", n, loadmodel->brushq3.num_brushes);
4130 out->brush = loadmodel->brushq3.data_brushes + n;
4131 out->unknown = LittleLong(in->unknown);
4135 static void Mod_Q3BSP_LoadVertices(lump_t *l)
4140 in = (void *)(mod_base + l->fileofs);
4141 if (l->filelen % sizeof(*in))
4142 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
4143 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
4144 loadmodel->brushq3.data_vertex3f = Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 2 + 2 + 3 + 3 + 3 + 4)));
4145 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_vertex3f + count * 3;
4146 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
4147 loadmodel->brushq3.data_svector3f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
4148 loadmodel->brushq3.data_tvector3f = loadmodel->brushq3.data_svector3f + count * 3;
4149 loadmodel->brushq3.data_normal3f = loadmodel->brushq3.data_tvector3f + count * 3;
4150 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_normal3f + count * 3;
4152 for (i = 0;i < count;i++, in++)
4154 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
4155 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
4156 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
4157 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
4158 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
4159 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
4160 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
4161 // svector/tvector are calculated later in face loading
4162 loadmodel->brushq3.data_svector3f[i * 3 + 0] = 0;
4163 loadmodel->brushq3.data_svector3f[i * 3 + 1] = 0;
4164 loadmodel->brushq3.data_svector3f[i * 3 + 2] = 0;
4165 loadmodel->brushq3.data_tvector3f[i * 3 + 0] = 0;
4166 loadmodel->brushq3.data_tvector3f[i * 3 + 1] = 0;
4167 loadmodel->brushq3.data_tvector3f[i * 3 + 2] = 0;
4168 loadmodel->brushq3.data_normal3f[i * 3 + 0] = LittleFloat(in->normal3f[0]);
4169 loadmodel->brushq3.data_normal3f[i * 3 + 1] = LittleFloat(in->normal3f[1]);
4170 loadmodel->brushq3.data_normal3f[i * 3 + 2] = LittleFloat(in->normal3f[2]);
4171 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
4172 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
4173 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
4174 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
4178 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
4184 in = (void *)(mod_base + l->fileofs);
4185 if (l->filelen % sizeof(int[3]))
4186 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
4187 count = l->filelen / sizeof(*in);
4188 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out) * 2);
4190 loadmodel->brushq3.num_triangles = count / 3;
4191 loadmodel->brushq3.data_element3i = out;
4192 loadmodel->brushq3.data_neighbor3i = out + count;
4194 for (i = 0;i < count;i++, in++, out++)
4196 *out = LittleLong(*in);
4197 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
4199 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
4205 static void Mod_Q3BSP_LoadLightmaps(lump_t *l)
4213 in = (void *)(mod_base + l->fileofs);
4214 if (l->filelen % sizeof(*in))
4215 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
4216 count = l->filelen / sizeof(*in);
4217 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4219 loadmodel->brushq3.data_lightmaps = out;
4220 loadmodel->brushq3.num_lightmaps = count;
4222 for (i = 0;i < count;i++, in++, out++)
4223 *out = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", i), 128, 128, in->rgb, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
4226 static void Mod_Q3BSP_LoadFaces(lump_t *l)
4230 int i, j, n, count, invalidelements, patchsize[2], finalwidth, finalheight, xtess, ytess, finalvertices, finaltriangles, firstvertex, firstelement, type, oldnumtriangles, oldnumtriangles2;
4231 //int *originalelement3i;
4232 //int *originalneighbor3i;
4233 float *originalvertex3f;
4234 //float *originalsvector3f;
4235 //float *originaltvector3f;
4236 //float *originalnormal3f;
4237 float *originalcolor4f;
4238 float *originaltexcoordtexture2f;
4239 float *originaltexcoordlightmap2f;
4242 in = (void *)(mod_base + l->fileofs);
4243 if (l->filelen % sizeof(*in))
4244 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
4245 count = l->filelen / sizeof(*in);
4246 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4248 loadmodel->brushq3.data_faces = out;
4249 loadmodel->brushq3.num_faces = count;
4251 for (i = 0;i < count;i++, in++, out++)
4253 // check face type first
4254 type = LittleLong(in->type);
4255 if (type != Q3FACETYPE_POLYGON
4256 && type != Q3FACETYPE_PATCH
4257 && type != Q3FACETYPE_MESH
4258 && type != Q3FACETYPE_FLARE)
4260 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
4261 out->mesh.num_vertices = 0;
4262 out->mesh.num_triangles = 0;
4267 n = LittleLong(in->textureindex);
4268 if (n < 0 || n >= loadmodel->brushq3.num_textures)
4270 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->brushq3.num_textures);
4271 out->mesh.num_vertices = 0;
4272 out->mesh.num_triangles = 0;
4277 out->texture = loadmodel->brushq3.data_textures + n;
4278 n = LittleLong(in->effectindex);
4279 if (n < -1 || n >= loadmodel->brushq3.num_effects)
4281 if (developer.integer >= 2)
4282 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
4288 out->effect = loadmodel->brushq3.data_effects + n;
4289 n = LittleLong(in->lightmapindex);
4290 if (n >= loadmodel->brushq3.num_lightmaps)
4292 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_lightmaps);
4298 out->lightmaptexture = NULL;
4300 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n];
4302 firstvertex = LittleLong(in->firstvertex);
4303 out->mesh.num_vertices = LittleLong(in->numvertices);
4304 firstelement = LittleLong(in->firstelement);
4305 out->mesh.num_triangles = LittleLong(in->numelements) / 3;
4306 if (out->mesh.num_triangles * 3 != LittleLong(in->numelements))
4308 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): numelements %i is not a multiple of 3\n", i, out->texture->name, LittleLong(in->numelements));
4309 out->mesh.num_vertices = 0;
4310 out->mesh.num_triangles = 0;
4314 if (firstvertex < 0 || firstvertex + out->mesh.num_vertices > loadmodel->brushq3.num_vertices)
4316 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid vertex range %i : %i (%i vertices)\n", i, out->texture->name, firstvertex, firstvertex + out->mesh.num_vertices, loadmodel->brushq3.num_vertices);
4317 out->mesh.num_vertices = 0;
4318 out->mesh.num_triangles = 0;
4322 if (firstelement < 0 || firstelement + out->mesh.num_triangles * 3 > loadmodel->brushq3.num_triangles * 3)
4324 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid element range %i : %i (%i elements)\n", i, out->texture->name, firstelement, firstelement + out->mesh.num_triangles * 3, loadmodel->brushq3.num_triangles * 3);
4325 out->mesh.num_vertices = 0;
4326 out->mesh.num_triangles = 0;
4332 case Q3FACETYPE_POLYGON:
4333 case Q3FACETYPE_MESH:
4334 // no processing necessary
4335 out->mesh.data_vertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4336 out->mesh.data_texcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
4337 out->mesh.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
4338 out->mesh.data_svector3f = loadmodel->brushq3.data_svector3f + firstvertex * 3;
4339 out->mesh.data_tvector3f = loadmodel->brushq3.data_tvector3f + firstvertex * 3;
4340 out->mesh.data_normal3f = loadmodel->brushq3.data_normal3f + firstvertex * 3;
4341 out->mesh.data_lightmapcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
4342 out->mesh.data_element3i = loadmodel->brushq3.data_element3i + firstelement;
4343 out->mesh.data_neighbor3i = loadmodel->brushq3.data_neighbor3i + firstelement;
4345 case Q3FACETYPE_PATCH:
4346 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4347 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4348 if (patchsize[0] < 3 || patchsize[1] < 3 || !(patchsize[0] & 1) || !(patchsize[1] & 1) || patchsize[0] * patchsize[1] >= min(r_subdivisions_maxvertices.integer, r_subdivisions_collision_maxvertices.integer))
4350 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
4351 out->mesh.num_vertices = 0;
4352 out->mesh.num_triangles = 0;
4356 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4357 //originalsvector3f = loadmodel->brushq3.data_svector3f + firstvertex * 3;
4358 //originaltvector3f = loadmodel->brushq3.data_tvector3f + firstvertex * 3;
4359 //originalnormal3f = loadmodel->brushq3.data_normal3f + firstvertex * 3;
4360 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
4361 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
4362 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
4363 //originalelement3i = loadmodel->brushq3.data_element3i + firstelement;
4364 //originalneighbor3i = loadmodel->brushq3.data_neighbor3i + firstelement;
4366 originalvertex3f = out->mesh.data_vertex3f;
4367 //originalsvector3f = out->mesh.data_svector3f;
4368 //originaltvector3f = out->mesh.data_tvector3f;
4369 //originalnormal3f = out->mesh.data_normal3f;
4370 originalcolor4f = out->mesh.data_lightmapcolor4f;
4371 originaltexcoordtexture2f = out->mesh.data_texcoordtexture2f;
4372 originaltexcoordlightmap2f = out->mesh.data_texcoordlightmap2f;
4373 //originalelement3i = out->mesh.data_element3i;
4374 //originalneighbor3i = out->mesh.data_neighbor3i;
4376 // convert patch to Q3FACETYPE_MESH
4377 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4378 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4379 // bound to user settings
4380 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4381 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4382 // bound to sanity settings
4383 xtess = bound(1, xtess, 1024);
4384 ytess = bound(1, ytess, 1024);
4385 // bound to user limit on vertices
4386 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4393 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4394 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4395 finalvertices = finalwidth * finalheight;
4396 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4397 out->mesh.data_vertex3f = Mem_Alloc(loadmodel->mempool, sizeof(float[20]) * finalvertices);
4398 out->mesh.data_svector3f = out->mesh.data_vertex3f + finalvertices * 3;
4399 out->mesh.data_tvector3f = out->mesh.data_svector3f + finalvertices * 3;
4400 out->mesh.data_normal3f = out->mesh.data_tvector3f + finalvertices * 3;
4401 out->mesh.data_lightmapcolor4f = out->mesh.data_normal3f + finalvertices * 3;
4402 out->mesh.data_texcoordtexture2f = out->mesh.data_lightmapcolor4f + finalvertices * 4;
4403 out->mesh.data_texcoordlightmap2f = out->mesh.data_texcoordtexture2f + finalvertices * 2;
4404 out->mesh.data_element3i = Mem_Alloc(loadmodel->mempool, sizeof(int[6]) * finaltriangles);
4405 out->mesh.data_neighbor3i = out->mesh.data_element3i + finaltriangles * 3;
4406 type = Q3FACETYPE_MESH;
4408 out->mesh.num_vertices = finalvertices;
4410 out->mesh.num_triangles = finaltriangles;
4411 // generate geometry
4412 // (note: normals are skipped because they get recalculated)
4413 Q3PatchTesselateFloat(3, sizeof(float[3]), out->mesh.data_vertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4414 Q3PatchTesselateFloat(2, sizeof(float[2]), out->mesh.data_texcoordtexture2f, patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
4415 Q3PatchTesselateFloat(2, sizeof(float[2]), out->mesh.data_texcoordlightmap2f, patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
4416 Q3PatchTesselateFloat(4, sizeof(float[4]), out->mesh.data_lightmapcolor4f, patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
4417 Q3PatchTriangleElements(out->mesh.data_element3i, finalwidth, finalheight);
4418 if (developer.integer >= 2)
4420 if (out->mesh.num_triangles < finaltriangles)
4421 Con_Printf("Mod_Q3BSP_LoadFaces: %ix%i curve subdivided to %i vertices / %i triangles, %i degenerate triangles removed (leaving %i)\n", patchsize[0], patchsize[1], out->mesh.num_vertices, finaltriangles, finaltriangles - out->mesh.num_triangles, out->mesh.num_triangles);
4423 Con_Printf("Mod_Q3BSP_LoadFaces: %ix%i curve subdivided to %i vertices / %i triangles\n", patchsize[0], patchsize[1], out->mesh.num_vertices, out->mesh.num_triangles);
4425 // q3map does not put in collision brushes for curves... ugh
4426 // build the lower quality collision geometry
4427 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4428 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4429 // bound to user settings
4430 xtess = bound(r_subdivisions_collision_mintess.integer, xtess, r_subdivisions_collision_maxtess.integer);
4431 ytess = bound(r_subdivisions_collision_mintess.integer, ytess, r_subdivisions_collision_maxtess.integer);
4432 // bound to sanity settings
4433 xtess = bound(1, xtess, 1024);
4434 ytess = bound(1, ytess, 1024);
4435 // bound to user limit on vertices
4436 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_collision_maxvertices.integer, 262144))
4443 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4444 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4445 finalvertices = finalwidth * finalheight;
4446 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4448 out->mesh.data_collisionvertex3f = Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
4449 out->mesh.data_collisionelement3i = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
4450 out->mesh.num_collisionvertices = finalvertices;
4451 out->mesh.num_collisiontriangles = finaltriangles;
4452 Q3PatchTesselateFloat(3, sizeof(float[3]), out->mesh.data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4453 Q3PatchTriangleElements(out->mesh.data_collisionelement3i, finalwidth, finalheight);
4455 //Mod_SnapVertices(3, out->mesh.num_vertices, out->mesh.data_vertex3f, 0.25);
4456 Mod_SnapVertices(3, out->mesh.num_collisionvertices, out->mesh.data_collisionvertex3f, 1);
4458 oldnumtriangles = out->mesh.num_triangles;
4459 oldnumtriangles2 = out->mesh.num_collisiontriangles;
4460 out->mesh.num_triangles = Mod_RemoveDegenerateTriangles(out->mesh.num_triangles, out->mesh.data_element3i, out->mesh.data_element3i, out->mesh.data_vertex3f);
4461 out->mesh.num_collisiontriangles = Mod_RemoveDegenerateTriangles(out->mesh.num_collisiontriangles, out->mesh.data_collisionelement3i, out->mesh.data_collisionelement3i, out->mesh.data_collisionvertex3f);
4462 if (developer.integer)
4463 Con_Printf("Mod_Q3BSP_LoadFaces: %ix%i curve became %i:%i vertices / %i:%i triangles (%i:%i degenerate)\n", patchsize[0], patchsize[1], out->mesh.num_vertices, out->mesh.num_collisionvertices, oldnumtriangles, oldnumtriangles2, oldnumtriangles - out->mesh.num_triangles, oldnumtriangles2 - out->mesh.num_collisiontriangles);
4465 case Q3FACETYPE_FLARE:
4466 if (developer.integer >= 2)
4467 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
4469 out->mesh.num_vertices = 0;
4470 out->mesh.num_triangles = 0;
4474 for (j = 0, invalidelements = 0;j < out->mesh.num_triangles * 3;j++)
4475 if (out->mesh.data_element3i[j] < 0 || out->mesh.data_element3i[j] >= out->mesh.num_vertices)
4477 if (invalidelements)
4479 Con_Printf("Mod_Q3BSP_LoadFaces: Warning: face #%i has %i invalid elements, type = %i, texture->name = \"%s\", texture->surfaceflags = %i, texture->nativecontents = %i, firstvertex = %i, numvertices = %i, firstelement = %i, numelements = %i, elements list:\n", i, invalidelements, type, out->texture->name, out->texture->surfaceflags, out->texture->nativecontents, firstvertex, out->mesh.num_vertices, firstelement, out->mesh.num_triangles * 3);
4480 for (j = 0;j < out->mesh.num_triangles * 3;j++)
4482 Con_Printf(" %i", out->mesh.data_element3i[j]);
4483 if (out->mesh.data_element3i[j] < 0 || out->mesh.data_element3i[j] >= out->mesh.num_vertices)
4484 out->mesh.data_element3i[j] = 0;
4488 // for shadow volumes
4489 Mod_BuildTriangleNeighbors(out->mesh.data_neighbor3i, out->mesh.data_element3i, out->mesh.num_triangles);
4490 // for per pixel lighting
4491 Mod_BuildTextureVectorsAndNormals(out->mesh.num_vertices, out->mesh.num_triangles, out->mesh.data_vertex3f, out->mesh.data_texcoordtexture2f, out->mesh.data_element3i, out->mesh.data_svector3f, out->mesh.data_tvector3f, out->mesh.data_normal3f);
4492 // calculate a bounding box
4493 VectorClear(out->mins);
4494 VectorClear(out->maxs);
4495 if (out->mesh.num_vertices)
4497 VectorCopy(out->mesh.data_vertex3f, out->mins);
4498 VectorCopy(out->mesh.data_vertex3f, out->maxs);
4499 for (j = 1, v = out->mesh.data_vertex3f + 3;j < out->mesh.num_vertices;j++, v += 3)
4501 out->mins[0] = min(out->mins[0], v[0]);
4502 out->maxs[0] = max(out->maxs[0], v[0]);
4503 out->mins[1] = min(out->mins[1], v[1]);
4504 out->maxs[1] = max(out->maxs[1], v[1]);
4505 out->mins[2] = min(out->mins[2], v[2]);
4506 out->maxs[2] = max(out->maxs[2], v[2]);
4508 out->mins[0] -= 1.0f;
4509 out->mins[1] -= 1.0f;
4510 out->mins[2] -= 1.0f;
4511 out->maxs[0] += 1.0f;
4512 out->maxs[1] += 1.0f;
4513 out->maxs[2] += 1.0f;
4517 // LordHavoc: experimental array merger (disabled because it wastes time and uses 2x memory while merging)
4520 int totalverts, totaltris;
4521 int originalnum_vertices;
4522 float *originaldata_vertex3f;
4523 float *originaldata_texcoordtexture2f;
4524 float *originaldata_texcoordlightmap2f;
4525 float *originaldata_svector3f;
4526 float *originaldata_tvector3f;
4527 float *originaldata_normal3f;
4528 float *originaldata_color4f;
4529 int originalnum_triangles;
4530 int *originaldata_element3i;
4531 int *originaldata_neighbor3i;
4535 for (i = 0, out = loadmodel->brushq3.data_faces;i < count;i++, out++)
4539 totalverts += out->mesh.num_vertices;
4540 totaltris += out->mesh.num_triangles;
4543 originalnum_vertices = loadmodel->brushq3.num_vertices;
4544 originaldata_vertex3f = loadmodel->brushq3.data_vertex3f;
4545 originaldata_texcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f;
4546 originaldata_texcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f;
4547 originaldata_svector3f = loadmodel->brushq3.data_svector3f;
4548 originaldata_tvector3f = loadmodel->brushq3.data_tvector3f;
4549 originaldata_normal3f = loadmodel->brushq3.data_normal3f;
4550 originaldata_color4f = loadmodel->brushq3.data_color4f;
4551 originalnum_triangles = loadmodel->brushq3.num_triangles;
4552 originaldata_element3i = loadmodel->brushq3.data_element3i;
4553 originaldata_neighbor3i = loadmodel->brushq3.data_neighbor3i;
4554 loadmodel->brushq3.num_vertices = totalverts;
4555 loadmodel->brushq3.data_vertex3f = Mem_Alloc(loadmodel->mempool, totalverts * (sizeof(float) * (3 + 2 + 2 + 3 + 3 + 3 + 4)) + totaltris * (sizeof(int) * (3 * 2)));
4556 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_vertex3f + totalverts * 3;
4557 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + totalverts * 2;
4558 loadmodel->brushq3.data_svector3f = loadmodel->brushq3.data_texcoordlightmap2f + totalverts * 2;
4559 loadmodel->brushq3.data_tvector3f = loadmodel->brushq3.data_svector3f + totalverts * 3;
4560 loadmodel->brushq3.data_normal3f = loadmodel->brushq3.data_tvector3f + totalverts * 3;
4561 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_normal3f + totalverts * 3;
4562 loadmodel->brushq3.num_triangles = totaltris;
4563 loadmodel->brushq3.data_element3i = (int *)(loadmodel->brushq3.data_color4f + totalverts * 4);
4564 loadmodel->brushq3.data_neighbor3i = loadmodel->brushq3.data_element3i + totaltris * 3;
4567 for (i = 0, out = loadmodel->brushq3.data_faces;i < count;i++, out++)
4571 Con_Printf("totalverts %i, totaltris %i\n", totalverts, totaltris);
4572 memcpy(loadmodel->brushq3.data_vertex3f + totalverts * 3, out->mesh.data_vertex3f, out->mesh.num_vertices * 3 * sizeof(float));
4573 memcpy(loadmodel->brushq3.data_texcoordtexture2f + totalverts * 2, out->mesh.data_texcoordtexture2f, out->mesh.num_vertices * 2 * sizeof(float));
4574 memcpy(loadmodel->brushq3.data_texcoordlightmap2f + totalverts * 2, out->mesh.data_texcoordlightmap2f, out->mesh.num_vertices * 2 * sizeof(float));
4575 memcpy(loadmodel->brushq3.data_svector3f + totalverts * 3, out->mesh.data_svector3f, out->mesh.num_vertices * 3 * sizeof(float));
4576 memcpy(loadmodel->brushq3.data_tvector3f + totalverts * 3, out->mesh.data_tvector3f, out->mesh.num_vertices * 3 * sizeof(float));
4577 memcpy(loadmodel->brushq3.data_normal3f + totalverts * 3, out->mesh.data_normal3f, out->mesh.num_vertices * 3 * sizeof(float));
4578 memcpy(loadmodel->brushq3.data_color4f + totalverts * 4, out->mesh.data_lightmapcolor4f, out->mesh.num_vertices * 4 * sizeof(float));
4579 memcpy(loadmodel->brushq3.data_element3i + totaltris * 3, out->mesh.data_element3i, out->mesh.num_triangles * 3 * sizeof(int));
4580 memcpy(loadmodel->brushq3.data_neighbor3i + totaltris * 3, out->mesh.data_neighbor3i, out->mesh.num_triangles * 3 * sizeof(int));
4581 if (out->firstvertex == -1)
4582 Mem_Free(out->mesh.data_vertex3f);
4583 if (out->firstelement == -1)
4584 Mem_Free(out->mesh.data_element3i);
4585 out->firstvertex = totalverts;
4586 out->mesh.data_vertex3f = loadmodel->brushq3.data_vertex3f + out->firstvertex * 3;
4587 out->mesh.data_texcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + out->firstvertex * 2;
4588 out->mesh.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + out->firstvertex * 2;
4589 out->mesh.data_svector3f = loadmodel->brushq3.data_svector3f + out->firstvertex * 3;
4590 out->mesh.data_tvector3f = loadmodel->brushq3.data_tvector3f + out->firstvertex * 3;
4591 out->mesh.data_normal3f = loadmodel->brushq3.data_normal3f + out->firstvertex * 3;
4592 out->mesh.data_lightmapcolor4f = loadmodel->brushq3.data_color4f + out->firstvertex * 4;
4593 out->firstelement = totaltris * 3;
4594 out->mesh.data_element3i = loadmodel->brushq3.data_element3i + out->firstelement;
4595 out->mesh.data_neighbor3i = loadmodel->brushq3.data_neighbor3i + out->firstelement;
4596 //for (j = 0;j < out->numtriangles * 3;j++)
4597 // out->mesh.data_element3i[j] += totalverts - out->firstvertex;
4598 totalverts += out->mesh.num_vertices;
4599 totaltris += out->mesh.num_triangles;
4601 Mem_Free(originaldata_vertex3f);
4602 Mem_Free(originaldata_element3i);
4607 static void Mod_Q3BSP_LoadModels(lump_t *l)
4611 int i, j, n, c, count;
4613 in = (void *)(mod_base + l->fileofs);
4614 if (l->filelen % sizeof(*in))
4615 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
4616 count = l->filelen / sizeof(*in);
4617 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4619 loadmodel->brushq3.data_models = out;
4620 loadmodel->brushq3.num_models = count;
4622 for (i = 0;i < count;i++, in++, out++)
4624 for (j = 0;j < 3;j++)
4626 out->mins[j] = LittleFloat(in->mins[j]);
4627 out->maxs[j] = LittleFloat(in->maxs[j]);
4629 n = LittleLong(in->firstface);
4630 c = LittleLong(in->numfaces);
4631 if (n < 0 || n + c > loadmodel->brushq3.num_faces)
4632 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)\n", n, n + c, loadmodel->brushq3.num_faces);
4633 out->firstface = loadmodel->brushq3.data_faces + n;
4635 n = LittleLong(in->firstbrush);
4636 c = LittleLong(in->numbrushes);
4637 if (n < 0 || n + c > loadmodel->brushq3.num_brushes)
4638 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)\n", n, n + c, loadmodel->brushq3.num_brushes);
4639 out->firstbrush = loadmodel->brushq3.data_brushes + n;
4640 out->numbrushes = c;
4644 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
4650 in = (void *)(mod_base + l->fileofs);
4651 if (l->filelen % sizeof(*in))
4652 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
4653 count = l->filelen / sizeof(*in);
4654 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4656 loadmodel->brushq3.data_leafbrushes = out;
4657 loadmodel->brushq3.num_leafbrushes = count;
4659 for (i = 0;i < count;i++, in++, out++)
4661 n = LittleLong(*in);
4662 if (n < 0 || n >= loadmodel->brushq3.num_brushes)
4663 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)\n", n, loadmodel->brushq3.num_brushes);
4664 *out = loadmodel->brushq3.data_brushes + n;
4668 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
4674 in = (void *)(mod_base + l->fileofs);
4675 if (l->filelen % sizeof(*in))
4676 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
4677 count = l->filelen / sizeof(*in);
4678 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4680 loadmodel->brushq3.data_leaffaces = out;
4681 loadmodel->brushq3.num_leaffaces = count;
4683 loadmodel->brushq3.data_leaffacenums = Mem_Alloc(loadmodel->mempool, count * sizeof(int));
4685 for (i = 0;i < count;i++, in++, out++)
4687 n = LittleLong(*in);
4688 if (n < 0 || n >= loadmodel->brushq3.num_faces)
4689 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)\n", n, loadmodel->brushq3.num_faces);
4690 *out = loadmodel->brushq3.data_faces + n;
4691 loadmodel->brushq3.data_leaffacenums[i] = n;
4695 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
4699 int i, j, n, c, count;
4701 in = (void *)(mod_base + l->fileofs);
4702 if (l->filelen % sizeof(*in))
4703 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
4704 count = l->filelen / sizeof(*in);
4705 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4707 loadmodel->brushq3.data_leafs = out;
4708 loadmodel->brushq3.num_leafs = count;
4710 for (i = 0;i < count;i++, in++, out++)
4714 out->clusterindex = LittleLong(in->clusterindex);
4715 out->areaindex = LittleLong(in->areaindex);
4716 for (j = 0;j < 3;j++)
4718 // yes the mins/maxs are ints
4719 out->mins[j] = LittleLong(in->mins[j]) - 1;
4720 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
4722 n = LittleLong(in->firstleafface);
4723 c = LittleLong(in->numleaffaces);
4724 if (n < 0 || n + c > loadmodel->brushq3.num_leaffaces)
4725 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafface range %i : %i (%i leaffaces)\n", n, n + c, loadmodel->brushq3.num_leaffaces);
4726 out->firstleafface = loadmodel->brushq3.data_leaffaces + n;
4727 out->firstleaffacenum = loadmodel->brushq3.data_leaffacenums + n;
4728 out->numleaffaces = c;
4729 n = LittleLong(in->firstleafbrush);
4730 c = LittleLong(in->numleafbrushes);
4731 if (n < 0 || n + c > loadmodel->brushq3.num_leafbrushes)
4732 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)\n", n, n + c, loadmodel->brushq3.num_leafbrushes);
4733 out->firstleafbrush = loadmodel->brushq3.data_leafbrushes + n;
4734 out->numleafbrushes = c;
4738 static void Mod_Q3BSP_LoadNodes_RecursiveSetParent(q3mnode_t *node, q3mnode_t *parent)
4741 Host_Error("Mod_Q3BSP_LoadNodes_RecursiveSetParent: runaway recursion\n");
4742 node->parent = parent;
4745 Mod_Q3BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
4746 Mod_Q3BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
4750 static void Mod_Q3BSP_LoadNodes(lump_t *l)
4756 in = (void *)(mod_base + l->fileofs);
4757 if (l->filelen % sizeof(*in))
4758 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
4759 count = l->filelen / sizeof(*in);
4760 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4762 loadmodel->brushq3.data_nodes = out;
4763 loadmodel->brushq3.num_nodes = count;
4765 for (i = 0;i < count;i++, in++, out++)
4768 n = LittleLong(in->planeindex);
4769 if (n < 0 || n >= loadmodel->brushq3.num_planes)
4770 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)\n", n, loadmodel->brushq3.num_planes);
4771 out->plane = loadmodel->brushq3.data_planes + n;
4772 for (j = 0;j < 2;j++)
4774 n = LittleLong(in->childrenindex[j]);
4777 if (n >= loadmodel->brushq3.num_nodes)
4778 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)\n", n, loadmodel->brushq3.num_nodes);
4779 out->children[j] = loadmodel->brushq3.data_nodes + n;
4784 if (n >= loadmodel->brushq3.num_leafs)
4785 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)\n", n, loadmodel->brushq3.num_leafs);
4786 out->children[j] = (q3mnode_t *)(loadmodel->brushq3.data_leafs + n);
4789 for (j = 0;j < 3;j++)
4791 // yes the mins/maxs are ints
4792 out->mins[j] = LittleLong(in->mins[j]) - 1;
4793 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
4797 // set the parent pointers
4798 Mod_Q3BSP_LoadNodes_RecursiveSetParent(loadmodel->brushq3.data_nodes, NULL);
4801 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
4804 q3dlightgrid_t *out;
4807 in = (void *)(mod_base + l->fileofs);
4808 if (l->filelen % sizeof(*in))
4809 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
4810 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
4811 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
4812 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
4813 loadmodel->brushq3.num_lightgrid_imins[0] = ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
4814 loadmodel->brushq3.num_lightgrid_imins[1] = ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
4815 loadmodel->brushq3.num_lightgrid_imins[2] = ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
4816 loadmodel->brushq3.num_lightgrid_imaxs[0] = floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
4817 loadmodel->brushq3.num_lightgrid_imaxs[1] = floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
4818 loadmodel->brushq3.num_lightgrid_imaxs[2] = floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
4819 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
4820 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
4821 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
4822 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
4825 if (l->filelen < count * (int)sizeof(*in))
4826 Host_Error("Mod_Q3BSP_LoadLightGrid: invalid lightgrid lump size %i bytes, should be %i bytes (%ix%ix%i)\n", l->filelen, count * sizeof(*in), loadmodel->brushq3.num_lightgrid_dimensions[0], loadmodel->brushq3.num_lightgrid_dimensions[1], loadmodel->brushq3.num_lightgrid_dimensions[2]);
4827 if (l->filelen != count * (int)sizeof(*in))
4828 Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", count * sizeof(*in), l->filelen);
4831 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4832 loadmodel->brushq3.data_lightgrid = out;
4833 loadmodel->brushq3.num_lightgrid = count;
4835 // no swapping or validation necessary
4837 memcpy(out, in, count * (int)sizeof(*out));
4840 // no data, fill with white
4842 for (i = 0;i < count;i++)
4844 out[i].ambientrgb[0] = 128;
4845 out[i].ambientrgb[1] = 128;
4846 out[i].ambientrgb[2] = 128;
4847 out[i].diffusergb[0] = 0;
4848 out[i].diffusergb[1] = 0;
4849 out[i].diffusergb[2] = 0;
4850 out[i].diffusepitch = 0;
4851 out[i].diffuseyaw = 0;
4855 Matrix4x4_CreateScale3(&loadmodel->brushq3.num_lightgrid_indexfromworld, loadmodel->brushq3.num_lightgrid_scale[0], loadmodel->brushq3.num_lightgrid_scale[1], loadmodel->brushq3.num_lightgrid_scale[2]);
4856 Matrix4x4_ConcatTranslate(&loadmodel->brushq3.num_lightgrid_indexfromworld, -loadmodel->brushq3.num_lightgrid_imins[0] * loadmodel->brushq3.num_lightgrid_cellsize[0], -loadmodel->brushq3.num_lightgrid_imins[1] * loadmodel->brushq3.num_lightgrid_cellsize[1], -loadmodel->brushq3.num_lightgrid_imins[2] * loadmodel->brushq3.num_lightgrid_cellsize[2]);
4859 static void Mod_Q3BSP_LoadPVS(lump_t *l)
4864 if (l->filelen == 0)
4867 // unvised maps often have cluster indices even without pvs, so check
4868 // leafs to find real number of clusters
4869 loadmodel->brush.num_pvsclusters = 1;
4870 for (i = 0;i < loadmodel->brushq3.num_leafs;i++)
4871 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brushq3.data_leafs[i].clusterindex + 1);
4874 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
4875 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
4876 loadmodel->brush.data_pvsclusters = Mem_Alloc(loadmodel->mempool, totalchains);
4877 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
4881 in = (void *)(mod_base + l->fileofs);
4883 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
4885 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
4886 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
4887 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
4888 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8\n", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
4889 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
4890 if (l->filelen < totalchains + (int)sizeof(*in))
4891 Host_Error("Mod_Q3BSP_LoadPVS: lump too small ((numclusters = %i) * (chainlength = %i) + sizeof(q3dpvs_t) == %i bytes, lump is %i bytes)\n", loadmodel->brush.num_pvsclusters, loadmodel->brush.num_pvsclusterbytes, totalchains + sizeof(*in), l->filelen);
4893 loadmodel->brush.data_pvsclusters = Mem_Alloc(loadmodel->mempool, totalchains);
4894 memcpy(loadmodel->brush.data_pvsclusters, (qbyte *)(in + 1), totalchains);
4897 static void Mod_Q3BSP_FindNonSolidLocation(model_t *model, const vec3_t in, vec3_t out, vec_t radius)
4899 // FIXME: finish this code
4900 VectorCopy(in, out);
4903 static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
4905 int i, j, k, index[3];
4906 float transformed[3], blend1, blend2, blend, yaw, pitch, sinpitch;
4907 q3dlightgrid_t *a, *s;
4908 // FIXME: write this
4909 if (!model->brushq3.num_lightgrid)
4911 ambientcolor[0] = 1;
4912 ambientcolor[1] = 1;
4913 ambientcolor[2] = 1;
4916 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
4917 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
4918 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
4919 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
4920 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
4921 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
4922 index[0] = (int)floor(transformed[0]);
4923 index[1] = (int)floor(transformed[1]);
4924 index[2] = (int)floor(transformed[2]);
4925 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
4926 // now lerp the values
4927 VectorClear(diffusenormal);
4928 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
4929 for (k = 0;k < 2;k++)
4931 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
4932 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
4934 for (j = 0;j < 2;j++)
4936 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
4937 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
4939 for (i = 0;i < 2;i++)
4941 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0])));
4942 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
4944 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
4945 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
4946 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
4947 pitch = s->diffusepitch * M_PI / 128;
4948 yaw = s->diffuseyaw * M_PI / 128;
4949 sinpitch = sin(pitch);
4950 diffusenormal[0] += blend * (cos(yaw) * sinpitch);
4951 diffusenormal[1] += blend * (sin(yaw) * sinpitch);
4952 diffusenormal[2] += blend * (cos(pitch));
4953 //Con_Printf("blend %f: ambient %i %i %i, diffuse %i %i %i, diffusepitch %i diffuseyaw %i (%f %f, normal %f %f %f)\n", blend, s->ambientrgb[0], s->ambientrgb[1], s->ambientrgb[2], s->diffusergb[0], s->diffusergb[1], s->diffusergb[2], s->diffusepitch, s->diffuseyaw, pitch, yaw, (cos(yaw) * cospitch), (sin(yaw) * cospitch), (-sin(pitch)));
4957 VectorNormalize(diffusenormal);
4958 //Con_Printf("result: ambient %f %f %f diffuse %f %f %f diffusenormal %f %f %f\n", ambientcolor[0], ambientcolor[1], ambientcolor[2], diffusecolor[0], diffusecolor[1], diffusecolor[2], diffusenormal[0], diffusenormal[1], diffusenormal[2]);
4961 static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, q3mnode_t *node, const vec3_t point, int markframe)
4966 // find which leaf the point is in
4968 node = node->children[DotProduct(point, node->plane->normal) < node->plane->dist];
4969 // point trace the brushes
4970 leaf = (q3mleaf_t *)node;
4971 for (i = 0;i < leaf->numleafbrushes;i++)
4973 brush = leaf->firstleafbrush[i]->colbrushf;
4974 if (brush && brush->markframe != markframe && BoxesOverlap(point, point, brush->mins, brush->maxs))
4976 brush->markframe = markframe;
4977 Collision_TracePointBrushFloat(trace, point, leaf->firstleafbrush[i]->colbrushf);
4980 // can't do point traces on curves (they have no thickness)
4983 static void Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace_t *trace, q3mnode_t *node, const vec3_t start, const vec3_t end, vec_t startfrac, vec_t endfrac, const vec3_t linestart, const vec3_t lineend, int markframe, const vec3_t segmentmins, const vec3_t segmentmaxs)
4985 int i, startside, endside;
4986 float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
4990 if (startfrac > trace->realfraction)
4992 // note: all line fragments past first impact fraction are ignored
4993 if (VectorCompare(start, end))
4995 // find which leaf the point is in
4997 node = node->children[DotProduct(start, node->plane->normal) < node->plane->dist];
5001 // find which nodes the line is in and recurse for them
5004 // recurse down node sides
5005 dist1 = PlaneDiff(start, node->plane);
5006 dist2 = PlaneDiff(end, node->plane);
5007 startside = dist1 < 0;
5008 endside = dist2 < 0;
5009 if (startside == endside)
5011 // most of the time the line fragment is on one side of the plane
5012 node = node->children[startside];
5016 // line crosses node plane, split the line
5017 midfrac = dist1 / (dist1 - dist2);
5018 VectorLerp(start, midfrac, end, mid);
5019 // take the near side first
5020 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5021 if (midfrac <= trace->realfraction)
5022 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5028 nodesegmentmins[0] = min(start[0], end[0]);
5029 nodesegmentmins[1] = min(start[1], end[1]);
5030 nodesegmentmins[2] = min(start[2], end[2]);
5031 nodesegmentmaxs[0] = max(start[0], end[0]);
5032 nodesegmentmaxs[1] = max(start[1], end[1]);
5033 nodesegmentmaxs[2] = max(start[2], end[2]);
5034 // line trace the brushes
5035 leaf = (q3mleaf_t *)node;
5036 for (i = 0;i < leaf->numleafbrushes;i++)
5038 brush = leaf->firstleafbrush[i]->colbrushf;
5039 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5041 brush->markframe = markframe;
5042 Collision_TraceLineBrushFloat(trace, linestart, lineend, leaf->firstleafbrush[i]->colbrushf, leaf->firstleafbrush[i]->colbrushf);
5043 if (startfrac > trace->realfraction)
5047 // can't do point traces on curves (they have no thickness)
5048 if (mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
5050 // line trace the curves
5051 for (i = 0;i < leaf->numleaffaces;i++)
5053 face = leaf->firstleafface[i];
5054 if (face->mesh.num_collisiontriangles && face->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, face->mins, face->maxs))
5056 face->collisionmarkframe = markframe;
5057 Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, face->mesh.num_collisiontriangles, face->mesh.data_collisionelement3i, face->mesh.data_collisionvertex3f, face->texture->supercontents, segmentmins, segmentmaxs);
5058 if (startfrac > trace->realfraction)
5065 static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, q3mnode_t *node, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int markframe, const vec3_t segmentmins, const vec3_t segmentmaxs)
5069 float nodesegmentmins[3], nodesegmentmaxs[3];
5074 // find which nodes the line is in and recurse for them
5077 // recurse down node sides
5078 int startside, endside;
5079 float dist1near, dist1far, dist2near, dist2far;
5080 BoxPlaneCornerDistances(thisbrush_start->mins, thisbrush_start->maxs, node->plane, &dist1near, &dist1far);
5081 BoxPlaneCornerDistances(thisbrush_end->mins, thisbrush_end->maxs, node->plane, &dist2near, &dist2far);
5082 startside = dist1near < 0;
5083 startside = dist1near < 0 ? (dist1far < 0 ? 1 : 2) : (dist1far < 0 ? 2 : 0);
5084 endside = dist2near < 0 ? (dist2far < 0 ? 1 : 2) : (dist2far < 0 ? 2 : 0);
5085 if (startside == 2 || endside == 2)
5087 // brushes cross plane
5088 // do not clip anything, just take both sides
5089 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5090 node = node->children[1];
5097 node = node->children[0];
5102 //midf0 = dist1near / (dist1near - dist2near);
5103 //midf1 = dist1far / (dist1far - dist2far);
5104 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5105 node = node->children[1];
5113 //midf0 = dist1near / (dist1near - dist2near);
5114 //midf1 = dist1far / (dist1far - dist2far);
5115 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5116 node = node->children[1];
5121 node = node->children[1];
5126 if (dist1near < 0 && dist2near < 0 && dist1far < 0 && dist2far < 0){node = node->children[1];continue;}
5127 if (dist1near < 0 && dist2near < 0 && dist1far < 0 && dist2far >= 0){Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);node = node->children[1];continue;}
5128 if (dist1near < 0 && dist2near < 0 && dist1far >= 0 && dist2far < 0){Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);node = node->children[1];continue;}
5129 if (dist1near < 0 && dist2near < 0 && dist1far >= 0 && dist2far >= 0){Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);node = node->children[1];continue;}
5130 if (dist1near < 0 && dist2near >= 0 && dist1far < 0 && dist2far < 0){node = node->children[1];continue;}
5131 if (dist1near < 0 && dist2near >= 0 && dist1far < 0 && dist2far >= 0){}
5132 if (dist1near < 0 && dist2near >= 0 && dist1far >= 0 && dist2far < 0){Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);node = node->children[1];continue;}
5133 if (dist1near < 0 && dist2near >= 0 && dist1far >= 0 && dist2far >= 0){Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);node = node->children[1];continue;}
5134 if (dist1near >= 0 && dist2near < 0 && dist1far < 0 && dist2far < 0){node = node->children[1];continue;}
5135 if (dist1near >= 0 && dist2near < 0 && dist1far < 0 && dist2far >= 0){Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);node = node->children[1];continue;}
5136 if (dist1near >= 0 && dist2near < 0 && dist1far >= 0 && dist2far < 0){}
5137 if (dist1near >= 0 && dist2near < 0 && dist1far >= 0 && dist2far >= 0){Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);node = node->children[1];continue;}
5138 if (dist1near >= 0 && dist2near >= 0 && dist1far < 0 && dist2far < 0){Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);node = node->children[1];continue;}
5139 if (dist1near >= 0 && dist2near >= 0 && dist1far < 0 && dist2far >= 0){node = node->children[0];continue;}
5140 if (dist1near >= 0 && dist2near >= 0 && dist1far >= 0 && dist2far < 0){node = node->children[0];continue;}
5141 if (dist1near >= 0 && dist2near >= 0 && dist1far >= 0 && dist2far >= 0){node = node->children[0];continue;}
5143 if (dist2near < 0) // d1n<0 && d2n<0
5145 if (dist2near < 0) // d1n<0 && d2n<0
5147 if (dist2near < 0) // d1n<0 && d2n<0
5150 else // d1n<0 && d2n>0
5154 else // d1n<0 && d2n>0
5156 if (dist2near < 0) // d1n<0 && d2n<0
5159 else // d1n<0 && d2n>0
5164 else // d1n<0 && d2n>0
5170 if (dist2near < 0) // d1n>0 && d2n<0
5173 else // d1n>0 && d2n>0
5177 if (dist1near < 0 == dist1far < 0 == dist2near < 0 == dist2far < 0)
5179 node = node->children[startside];
5182 if (dist1near < dist2near)
5187 node = node->children[0];
5192 node = node->children[1];
5195 // dist1near < 0 && dist2far >= 0
5201 startside = dist1near < 0 ? (dist1far < 0 ? 1 : 2) : (dist1far < 0 ? 2 : 0);
5202 endside = dist2near < 0 ? (dist2far < 0 ? 1 : 2) : (dist2far < 0 ? 2 : 0);
5203 if (startside == 2 || endside == 2)
5205 // brushes cross plane
5206 // do not clip anything, just take both sides
5207 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5208 node = node->children[1];
5210 else if (startside == endside)
5211 node = node->children[startside];
5212 else if (startside == 0) // endside = 1 (start infront, end behind)
5215 else // startside == 1 endside = 0 (start behind, end infront)
5221 node = node->children[startside];
5224 // start and end brush cross plane
5230 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5231 node = node->children[1];
5232 else if (dist1near < 0 && dist1far < 0 && dist2near >= 0 && dist2far >= 0)
5233 else if (dist1near >= 0 && dist1far >= 0 && dist2near < 0 && dist2far < 0)
5234 else if (dist1near >= 0 && dist1far >= 0 && dist2near >= 0 && dist2far >= 0)
5235 node = node->children[0];
5237 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5238 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5239 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5240 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5241 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5244 else if (dist1near >= 0 && dist1far >= 0)
5247 else // mixed (lying on plane)
5251 if (dist2near < 0 && dist2far < 0)
5255 node = node->children[1];
5257 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5258 node = node->children[0];
5259 else if (dist1near >= 0 && dist1far >= 0 && dist2near >= 0 && dist2far >= 0)
5260 node = node->children[1];
5264 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5265 node = node->children[1];
5267 sides = dist1near || dist1near < 0 | dist1far < 0 | dist2near < 0 | dist
5268 startside = dist1 < 0;
5269 endside = dist2 < 0;
5270 if (startside == endside)
5272 // most of the time the line fragment is on one side of the plane
5273 node = node->children[startside];
5277 // line crosses node plane, split the line
5278 midfrac = dist1 / (dist1 - dist2);
5279 VectorLerp(start, midfrac, end, mid);
5280 // take the near side first
5281 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5282 if (midfrac <= trace->fraction)
5283 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5291 nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
5292 nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
5293 nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
5294 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
5295 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
5296 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
5297 if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
5301 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5302 node = node->children[1];
5305 // FIXME: could be made faster by copying TraceLine code and making it use
5306 // box plane distances... (variant on the BoxOnPlaneSide code)
5309 nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
5310 nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
5311 nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
5312 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
5313 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
5314 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
5315 if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
5319 if (mod_q3bsp_debugtracebrush.integer == 2)
5321 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5322 node = node->children[1];
5325 else if (mod_q3bsp_debugtracebrush.integer == 1)
5327 // recurse down node sides
5328 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5331 // segment box crosses plane
5332 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5333 node = node->children[1];
5336 // take whichever side the segment box is on
5337 node = node->children[sides - 1];
5342 // recurse down node sides
5343 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5346 // segment box crosses plane
5347 // now check start and end brush boxes to handle a lot of 'diagonal' cases more efficiently...
5348 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, node->plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, node->plane);
5351 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5352 node = node->children[1];
5356 // take whichever side the segment box is on
5357 node = node->children[sides - 1];
5363 // FIXME: could be made faster by copying TraceLine code and making it use
5364 // box plane distances... (variant on the BoxOnPlaneSide code)
5367 nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
5368 nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
5369 nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
5370 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
5371 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
5372 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
5373 if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
5377 if (mod_q3bsp_debugtracebrush.integer == 2)
5379 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5380 node = node->children[1];
5382 else if (mod_q3bsp_debugtracebrush.integer == 1)
5384 // recurse down node sides
5385 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5388 // segment box crosses plane
5389 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5390 node = node->children[1];
5394 // take whichever side the segment box is on
5395 node = node->children[sides - 1];
5400 // recurse down node sides
5401 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5404 // segment box crosses plane
5405 // now check start and end brush boxes to handle a lot of 'diagonal' cases more efficiently...
5406 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, node->plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, node->plane);
5409 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5413 // take whichever side the segment box is on
5414 node = node->children[sides - 1];
5419 leaf = (q3mleaf_t *)node;
5420 for (i = 0;i < leaf->numleafbrushes;i++)
5422 brush = leaf->firstleafbrush[i]->colbrushf;
5423 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5425 brush->markframe = markframe;
5426 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, leaf->firstleafbrush[i]->colbrushf, leaf->firstleafbrush[i]->colbrushf);
5429 if (mod_q3bsp_curves_collisions.integer)
5431 for (i = 0;i < leaf->numleaffaces;i++)
5433 face = leaf->firstleafface[i];
5434 if (face->mesh.num_collisiontriangles && face->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, face->mins, face->maxs))
5436 face->collisionmarkframe = markframe;
5437 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, face->mesh.num_collisiontriangles, face->mesh.data_collisionelement3i, face->mesh.data_collisionvertex3f, face->texture->supercontents, segmentmins, segmentmaxs);
5443 static void Mod_Q3BSP_TraceBox(model_t *model, int frame, trace_t *trace, const vec3_t boxstartmins, const vec3_t boxstartmaxs, const vec3_t boxendmins, const vec3_t boxendmaxs, int hitsupercontentsmask)
5446 float segmentmins[3], segmentmaxs[3];
5447 colbrushf_t *thisbrush_start, *thisbrush_end;
5448 matrix4x4_t startmatrix, endmatrix;
5449 static int markframe = 0;
5451 memset(trace, 0, sizeof(*trace));
5452 trace->fraction = 1;
5453 trace->realfraction = 1;
5454 trace->hitsupercontentsmask = hitsupercontentsmask;
5455 Matrix4x4_CreateIdentity(&startmatrix);
5456 Matrix4x4_CreateIdentity(&endmatrix);
5457 segmentmins[0] = min(boxstartmins[0], boxendmins[0]);
5458 segmentmins[1] = min(boxstartmins[1], boxendmins[1]);
5459 segmentmins[2] = min(boxstartmins[2], boxendmins[2]);
5460 segmentmaxs[0] = max(boxstartmaxs[0], boxendmaxs[0]);
5461 segmentmaxs[1] = max(boxstartmaxs[1], boxendmaxs[1]);
5462 segmentmaxs[2] = max(boxstartmaxs[2], boxendmaxs[2]);
5463 if (mod_q3bsp_optimizedtraceline.integer && VectorCompare(boxstartmins, boxstartmaxs) && VectorCompare(boxendmins, boxendmaxs))
5465 if (VectorCompare(boxstartmins, boxendmins))
5468 if (model->brushq3.submodel)
5470 for (i = 0;i < model->brushq3.data_thismodel->numbrushes;i++)
5471 if (model->brushq3.data_thismodel->firstbrush[i].colbrushf)
5472 Collision_TracePointBrushFloat(trace, boxstartmins, model->brushq3.data_thismodel->firstbrush[i].colbrushf);
5475 Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model->brushq3.data_nodes, boxstartmins, ++markframe);
5480 if (model->brushq3.submodel)
5482 for (i = 0;i < model->brushq3.data_thismodel->numbrushes;i++)
5483 if (model->brushq3.data_thismodel->firstbrush[i].colbrushf)
5484 Collision_TraceLineBrushFloat(trace, boxstartmins, boxendmins, model->brushq3.data_thismodel->firstbrush[i].colbrushf, model->brushq3.data_thismodel->firstbrush[i].colbrushf);
5485 if (mod_q3bsp_curves_collisions.integer)
5487 for (i = 0;i < model->brushq3.data_thismodel->numfaces;i++)
5489 face = model->brushq3.data_thismodel->firstface + i;
5490 if (face->mesh.num_collisiontriangles)
5491 Collision_TraceLineTriangleMeshFloat(trace, boxstartmins, boxendmins, face->mesh.num_collisiontriangles, face->mesh.data_collisionelement3i, face->mesh.data_collisionvertex3f, face->texture->supercontents, segmentmins, segmentmaxs);
5496 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model->brushq3.data_nodes, boxstartmins, boxendmins, 0, 1, boxstartmins, boxendmins, ++markframe, segmentmins, segmentmaxs);
5501 // box trace, performed as brush trace
5502 thisbrush_start = Collision_BrushForBox(&startmatrix, boxstartmins, boxstartmaxs);
5503 thisbrush_end = Collision_BrushForBox(&endmatrix, boxendmins, boxendmaxs);
5504 if (model->brushq3.submodel)
5506 for (i = 0;i < model->brushq3.data_thismodel->numbrushes;i++)
5507 if (model->brushq3.data_thismodel->firstbrush[i].colbrushf)
5508 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, model->brushq3.data_thismodel->firstbrush[i].colbrushf, model->brushq3.data_thismodel->firstbrush[i].colbrushf);
5509 if (mod_q3bsp_curves_collisions.integer)
5511 for (i = 0;i < model->brushq3.data_thismodel->numfaces;i++)
5513 face = model->brushq3.data_thismodel->firstface + i;
5514 if (face->mesh.num_collisiontriangles)
5515 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, face->mesh.num_collisiontriangles, face->mesh.data_collisionelement3i, face->mesh.data_collisionvertex3f, face->texture->supercontents, segmentmins, segmentmaxs);
5520 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model->brushq3.data_nodes, thisbrush_start, thisbrush_end, ++markframe, segmentmins, segmentmaxs);
5524 static int Mod_Q3BSP_BoxTouchingPVS(model_t *model, const qbyte *pvs, const vec3_t mins, const vec3_t maxs)
5526 int clusterindex, side, nodestackindex = 0;
5527 q3mnode_t *node, *nodestack[1024];
5528 node = model->brushq3.data_nodes;
5529 if (!model->brush.num_pvsclusters)
5535 // node - recurse down the BSP tree
5536 side = BoxOnPlaneSide(mins, maxs, node->plane) - 1;
5539 // box is on one side of plane, take that path
5540 node = node->children[side];
5544 // box crosses plane, take one path and remember the other
5545 if (nodestackindex < 1024)
5546 nodestack[nodestackindex++] = node->children[0];
5547 node = node->children[1];
5552 // leaf - check cluster bit
5553 clusterindex = ((q3mleaf_t *)node)->clusterindex;
5555 if (clusterindex >= model->brush.num_pvsclusters)
5557 Con_Printf("%i >= %i\n", clusterindex, model->brush.num_pvsclusters);
5561 if (CHECKPVSBIT(pvs, clusterindex))
5563 // it is visible, return immediately with the news
5568 // nothing to see here, try another path we didn't take earlier
5569 if (nodestackindex == 0)
5571 node = nodestack[--nodestackindex];
5575 // it is not visible
5579 //Returns PVS data for a given point
5580 //(note: can return NULL)
5581 static qbyte *Mod_Q3BSP_GetPVS(model_t *model, const vec3_t p)
5584 Mod_CheckLoaded(model);
5585 node = model->brushq3.data_nodes;
5587 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
5588 if (((q3mleaf_t *)node)->clusterindex >= 0)
5589 return model->brush.data_pvsclusters + ((q3mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
5594 static void Mod_Q3BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, qbyte *pvsbuffer, int pvsbytes, q3mnode_t *node)
5598 float d = PlaneDiff(org, node->plane);
5600 node = node->children[0];
5601 else if (d < -radius)
5602 node = node->children[1];
5605 // go down both sides
5606 Mod_Q3BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
5607 node = node->children[1];
5610 // if this leaf is in a cluster, accumulate the pvs bits
5611 if (((q3mleaf_t *)node)->clusterindex >= 0)
5614 qbyte *pvs = model->brush.data_pvsclusters + ((q3mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
5615 for (i = 0;i < pvsbytes;i++)
5616 pvsbuffer[i] |= pvs[i];
5620 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
5621 //of the given point.
5622 static int Mod_Q3BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, qbyte *pvsbuffer, int pvsbufferlength)
5624 int bytes = model->brush.num_pvsclusterbytes;
5625 bytes = min(bytes, pvsbufferlength);
5626 if (r_novis.integer || !model->brush.num_pvsclusters || !Mod_Q3BSP_GetPVS(model, org))
5628 memset(pvsbuffer, 0xFF, bytes);
5631 memset(pvsbuffer, 0, bytes);
5632 Mod_Q3BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brushq3.data_nodes);
5637 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
5639 int supercontents = 0;
5640 if (nativecontents & Q2CONTENTS_SOLID)
5641 supercontents |= SUPERCONTENTS_SOLID;
5642 if (nativecontents & Q2CONTENTS_WATER)
5643 supercontents |= SUPERCONTENTS_WATER;
5644 if (nativecontents & Q2CONTENTS_SLIME)
5645 supercontents |= SUPERCONTENTS_SLIME;
5646 if (nativecontents & Q2CONTENTS_LAVA)
5647 supercontents |= SUPERCONTENTS_LAVA;
5648 return supercontents;
5651 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
5653 int nativecontents = 0;
5654 if (supercontents & SUPERCONTENTS_SOLID)
5655 nativecontents |= Q2CONTENTS_SOLID;
5656 if (supercontents & SUPERCONTENTS_WATER)
5657 nativecontents |= Q2CONTENTS_WATER;
5658 if (supercontents & SUPERCONTENTS_SLIME)
5659 nativecontents |= Q2CONTENTS_SLIME;
5660 if (supercontents & SUPERCONTENTS_LAVA)
5661 nativecontents |= Q2CONTENTS_LAVA;
5662 return nativecontents;
5666 void Mod_Q3BSP_RecursiveGetVisible(q3mnode_t *node, model_t *model, const vec3_t point, const vec3_t mins, const vec3_t maxs, int maxleafs, q3mleaf_t *leaflist, int *numleafs, int maxsurfaces, q3msurface_t *surfacelist, int *numsurfaces, const qbyte *pvs)
5671 if (!BoxesOverlap(node->mins, node->maxs, mins, maxs))
5675 Mod_Q3BSP_RecursiveGetVisible(node->children[0], model, point, mins, maxs, maxleafs, leaflist, numleafs, maxsurfaces, surfacelist, numsurfaces, pvs);
5676 node = node->children[1];
5678 leaf = (mleaf_t *)node;
5679 if ((pvs == NULL || CHECKPVSBIT(pvs, leaf->clusterindex)))
5683 if (maxleafs && *numleafs < maxleafs)
5684 leaflist[(*numleaf)++] = leaf;
5687 for (marksurfacenum = 0;marksurfacenum < leaf->nummarksurfaces;marksurfacenum++)
5689 face = leaf->firstleafface[marksurfacenum];
5690 if (face->shadowmark != shadowmarkcount)
5692 face->shadowmark = shadowmarkcount;
5693 if (BoxesOverlap(mins, maxs, face->mins, face->maxs) && *numsurfaces < maxsurfaces)
5694 surfacelist[(*numsurfaces)++] = face;
5701 void Mod_Q3BSP_GetVisible(model_t *model, const vec3_t point, const vec3_t mins, const vec3_t maxs, int maxleafs, q3mleaf_t *leaflist, int *numleafs, int maxsurfaces, q3msurface_t *surfacelist, int *numsurfaces)
5703 // FIXME: support portals
5708 if (model->submodel)
5712 for (marksurfacenum = 0;marksurfacenum < leaf->nummarksurfaces;marksurfacenum++)
5714 face = ent->model->brushq3.surfaces + leaf->firstmarksurface[marksurfacenum];
5715 if (BoxesOverlap(mins, maxs, face->mins, face->maxs) && *numsurfaces < maxsurfaces)
5716 surfacelist[(*numsurfaces)++] = face;
5722 pvs = ent->model->brush.GetPVS(ent->model, relativelightorigin);
5723 Mod_Q3BSP_RecursiveGetVisible(ent->model->brushq3.data_nodes, model, point, mins, maxs, maxleafs, leaflist, numleafs, maxsurfaces, surfacelist, numsurfaces, pvs);
5728 void Mod_Q3BSP_BuildTextureFaceLists(void)
5731 loadmodel->brushq3.data_texturefaces = Mem_Alloc(loadmodel->mempool, loadmodel->nummodelsurfaces * sizeof(q3msurface_t *));
5732 loadmodel->brushq3.data_texturefacenums = Mem_Alloc(loadmodel->mempool, loadmodel->nummodelsurfaces * sizeof(int));
5733 for (i = 0;i < loadmodel->brushq3.num_textures;i++)
5734 loadmodel->brushq3.data_textures[i].numfaces = 0;
5735 for (i = 0;i < loadmodel->nummodelsurfaces;i++)
5736 loadmodel->brushq3.data_faces[loadmodel->surfacelist[i]].texture->numfaces++;
5738 for (i = 0;i < loadmodel->brushq3.num_textures;i++)
5740 loadmodel->brushq3.data_textures[i].facelist = loadmodel->brushq3.data_texturefaces + j;
5741 loadmodel->brushq3.data_textures[i].facenumlist = loadmodel->brushq3.data_texturefacenums + j;
5742 j += loadmodel->brushq3.data_textures[i].numfaces;
5743 loadmodel->brushq3.data_textures[i].numfaces = 0;
5745 for (i = 0;i < loadmodel->nummodelsurfaces;i++)
5747 loadmodel->brushq3.data_faces[loadmodel->surfacelist[i]].texture->facenumlist[loadmodel->brushq3.data_faces[loadmodel->surfacelist[i]].texture->numfaces] = loadmodel->surfacelist[i];
5748 loadmodel->brushq3.data_faces[loadmodel->surfacelist[i]].texture->facelist[loadmodel->brushq3.data_faces[loadmodel->surfacelist[i]].texture->numfaces++] = loadmodel->brushq3.data_faces + loadmodel->surfacelist[i];
5752 void Mod_Q3BSP_RecursiveFindNumLeafs(q3mnode_t *node)
5757 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
5758 node = node->children[1];
5760 numleafs = ((q3mleaf_t *)node - loadmodel->brushq3.data_leafs) + 1;
5761 if (loadmodel->brushq3.num_leafs < numleafs)
5762 loadmodel->brushq3.num_leafs = numleafs;
5765 extern void R_Q3BSP_DrawSky(struct entity_render_s *ent);
5766 extern void R_Q3BSP_Draw(struct entity_render_s *ent);
5767 extern void R_Q3BSP_GetLightInfo(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, vec3_t outmins, vec3_t outmaxs, int *outclusterlist, qbyte *outclusterpvs, int *outnumclusterspointer, int *outsurfacelist, qbyte *outsurfacepvs, int *outnumsurfacespointer);
5768 extern void R_Q3BSP_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist);
5769 extern void R_Q3BSP_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltolight, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz, rtexture_t *lightcubemap, vec_t ambientscale, vec_t diffusescale, vec_t specularscale, int numsurfaces, const int *surfacelist);
5770 void Mod_Q3BSP_Load(model_t *mod, void *buffer)
5772 int i, j, numshadowmeshtriangles;
5773 q3dheader_t *header;
5774 float corner[3], yawradius, modelradius;
5777 mod->type = mod_brushq3;
5778 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
5781 header = (q3dheader_t *)buffer;
5783 i = LittleLong(header->version);
5784 if (i != Q3BSPVERSION)
5785 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
5786 if (mod->isworldmodel)
5787 Cvar_SetValue("halflifebsp", false);
5789 mod->soundfromcenter = true;
5790 mod->TraceBox = Mod_Q3BSP_TraceBox;
5791 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
5792 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
5793 mod->brush.GetPVS = Mod_Q3BSP_GetPVS;
5794 mod->brush.FatPVS = Mod_Q3BSP_FatPVS;
5795 mod->brush.BoxTouchingPVS = Mod_Q3BSP_BoxTouchingPVS;
5796 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
5797 mod->brush.FindNonSolidLocation = Mod_Q3BSP_FindNonSolidLocation;
5798 //mod->DrawSky = R_Q3BSP_DrawSky;
5799 mod->Draw = R_Q3BSP_Draw;
5800 mod->GetLightInfo = R_Q3BSP_GetLightInfo;
5801 mod->DrawShadowVolume = R_Q3BSP_DrawShadowVolume;
5802 mod->DrawLight = R_Q3BSP_DrawLight;
5804 mod_base = (qbyte *)header;
5806 // swap all the lumps
5807 header->ident = LittleLong(header->ident);
5808 header->version = LittleLong(header->version);
5809 for (i = 0;i < Q3HEADER_LUMPS;i++)
5811 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
5812 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
5815 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
5816 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
5817 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
5818 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
5819 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
5820 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
5821 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
5822 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
5823 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS]);
5824 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
5825 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
5826 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
5827 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
5828 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
5829 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
5830 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
5831 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
5832 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
5834 // make a single combined shadow mesh to allow optimized shadow volume creation
5835 numshadowmeshtriangles = 0;
5836 for (j = 0, face = loadmodel->brushq3.data_faces;j < loadmodel->brushq3.num_faces;j++, face++)
5838 face->num_firstshadowmeshtriangle = numshadowmeshtriangles;
5839 numshadowmeshtriangles += face->mesh.num_triangles;
5841 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
5842 for (j = 0, face = loadmodel->brushq3.data_faces;j < loadmodel->brushq3.num_faces;j++, face++)
5843 Mod_ShadowMesh_AddMesh(loadmodel->mempool, loadmodel->brush.shadowmesh, NULL, NULL, NULL, face->mesh.data_vertex3f, NULL, NULL, NULL, NULL, face->mesh.num_triangles, face->mesh.data_element3i);
5844 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
5845 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
5847 loadmodel->brushq3.num_leafs = 0;
5848 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brushq3.data_nodes);
5851 for (i = 0;i < loadmodel->brushq3.num_models;i++)
5856 // LordHavoc: only register submodels if it is the world
5857 // (prevents external bsp models from replacing world submodels with
5859 if (!loadmodel->isworldmodel)
5861 // duplicate the basic information
5862 sprintf(name, "*%i", i);
5863 mod = Mod_FindName(name);
5865 strcpy(mod->name, name);
5866 // textures and memory belong to the main model
5867 mod->texturepool = NULL;
5868 mod->mempool = NULL;
5869 mod->brush.GetPVS = NULL;
5870 mod->brush.FatPVS = NULL;
5871 mod->brush.BoxTouchingPVS = NULL;
5872 mod->brush.LightPoint = NULL;
5873 mod->brush.FindNonSolidLocation = Mod_Q3BSP_FindNonSolidLocation;
5875 mod->brushq3.data_thismodel = loadmodel->brushq3.data_models + i;
5876 mod->brushq3.submodel = i;
5878 // make the model surface list (used by shadowing/lighting)
5879 mod->nummodelsurfaces = mod->brushq3.data_thismodel->numfaces;
5880 mod->surfacelist = Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
5881 for (j = 0;j < mod->nummodelsurfaces;j++)
5882 mod->surfacelist[j] = (mod->brushq3.data_thismodel->firstface - mod->brushq3.data_faces) + j;
5884 VectorCopy(mod->brushq3.data_thismodel->mins, mod->normalmins);
5885 VectorCopy(mod->brushq3.data_thismodel->maxs, mod->normalmaxs);
5886 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
5887 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
5888 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
5889 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
5890 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
5891 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
5892 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
5893 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
5894 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
5895 mod->yawmins[2] = mod->normalmins[2];
5896 mod->yawmaxs[2] = mod->normalmaxs[2];
5897 mod->radius = modelradius;
5898 mod->radius2 = modelradius * modelradius;
5900 for (j = 0;j < mod->brushq3.data_thismodel->numfaces;j++)
5901 if (mod->brushq3.data_thismodel->firstface[j].texture->surfaceflags & Q3SURFACEFLAG_SKY)
5903 if (j < mod->brushq3.data_thismodel->numfaces)
5904 mod->DrawSky = R_Q3BSP_DrawSky;
5907 Mod_Q3BSP_BuildTextureFaceLists();
5910 void Mod_IBSP_Load(model_t *mod, void *buffer)
5912 int i = LittleLong(((int *)buffer)[1]);
5913 if (i == Q3BSPVERSION)
5914 Mod_Q3BSP_Load(mod,buffer);
5915 else if (i == Q2BSPVERSION)
5916 Mod_Q2BSP_Load(mod,buffer);
5918 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i\n", i);
5921 void Mod_MAP_Load(model_t *mod, void *buffer)
5923 Host_Error("Mod_MAP_Load: not yet implemented\n");