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 qbyte mod_q1bsp_novis[(MAX_MAP_LEAFS + 7)/ 8];
31 //cvar_t r_subdivide_size = {CVAR_SAVE, "r_subdivide_size", "128"};
32 cvar_t halflifebsp = {0, "halflifebsp", "0"};
33 cvar_t r_novis = {0, "r_novis", "0"};
34 cvar_t r_miplightmaps = {CVAR_SAVE, "r_miplightmaps", "0"};
35 cvar_t r_lightmaprgba = {0, "r_lightmaprgba", "1"};
36 cvar_t r_nosurftextures = {0, "r_nosurftextures", "0"};
37 cvar_t r_subdivisions_tolerance = {0, "r_subdivisions_tolerance", "4"};
38 cvar_t r_subdivisions_mintess = {0, "r_subdivisions_mintess", "1"};
39 cvar_t r_subdivisions_maxtess = {0, "r_subdivisions_maxtess", "1024"};
40 cvar_t r_subdivisions_maxvertices = {0, "r_subdivisions_maxvertices", "65536"};
41 cvar_t r_subdivisions_collision_tolerance = {0, "r_subdivisions_collision_tolerance", "15"};
42 cvar_t r_subdivisions_collision_mintess = {0, "r_subdivisions_collision_mintess", "1"};
43 cvar_t r_subdivisions_collision_maxtess = {0, "r_subdivisions_collision_maxtess", "1024"};
44 cvar_t r_subdivisions_collision_maxvertices = {0, "r_subdivisions_collision_maxvertices", "4225"};
45 cvar_t mod_q3bsp_curves_collisions = {0, "mod_q3bsp_curves_collisions", "1"};
46 cvar_t mod_q3bsp_optimizedtraceline = {0, "mod_q3bsp_optimizedtraceline", "1"};
47 cvar_t mod_q3bsp_debugtracebrush = {0, "mod_q3bsp_debugtracebrush", "0"};
49 static void Mod_Q1BSP_Collision_Init (void);
50 void Mod_BrushInit(void)
52 // Cvar_RegisterVariable(&r_subdivide_size);
53 Cvar_RegisterVariable(&halflifebsp);
54 Cvar_RegisterVariable(&r_novis);
55 Cvar_RegisterVariable(&r_miplightmaps);
56 Cvar_RegisterVariable(&r_lightmaprgba);
57 Cvar_RegisterVariable(&r_nosurftextures);
58 Cvar_RegisterVariable(&r_subdivisions_tolerance);
59 Cvar_RegisterVariable(&r_subdivisions_mintess);
60 Cvar_RegisterVariable(&r_subdivisions_maxtess);
61 Cvar_RegisterVariable(&r_subdivisions_maxvertices);
62 Cvar_RegisterVariable(&r_subdivisions_collision_tolerance);
63 Cvar_RegisterVariable(&r_subdivisions_collision_mintess);
64 Cvar_RegisterVariable(&r_subdivisions_collision_maxtess);
65 Cvar_RegisterVariable(&r_subdivisions_collision_maxvertices);
66 Cvar_RegisterVariable(&mod_q3bsp_curves_collisions);
67 Cvar_RegisterVariable(&mod_q3bsp_optimizedtraceline);
68 Cvar_RegisterVariable(&mod_q3bsp_debugtracebrush);
69 memset(mod_q1bsp_novis, 0xff, sizeof(mod_q1bsp_novis));
70 Mod_Q1BSP_Collision_Init();
73 static mleaf_t *Mod_Q1BSP_PointInLeaf(model_t *model, const vec3_t p)
80 Mod_CheckLoaded(model);
82 // LordHavoc: modified to start at first clip node,
83 // in other words: first node of the (sub)model
84 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
86 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
88 return (mleaf_t *)node;
91 static void Mod_Q1BSP_AmbientSoundLevelsForPoint(model_t *model, const vec3_t p, qbyte *out, int outsize)
95 leaf = Mod_Q1BSP_PointInLeaf(model, p);
98 i = min(outsize, (int)sizeof(leaf->ambient_sound_level));
101 memcpy(out, leaf->ambient_sound_level, i);
107 memset(out, 0, outsize);
110 static int Mod_Q1BSP_BoxTouchingPVS(model_t *model, const qbyte *pvs, const vec3_t mins, const vec3_t maxs)
112 int clusterindex, side, nodestackindex = 0;
113 mnode_t *node, *nodestack[1024];
114 if (!model->brush.num_pvsclusters)
116 node = model->brush.data_nodes;
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];
158 static int Mod_Q1BSP_BoxTouchingVisibleLeafs(model_t *model, const qbyte *visibleleafs, const vec3_t mins, const vec3_t maxs)
160 int side, nodestackindex = 0;
161 mnode_t *node, *nodestack[1024];
162 node = model->brush.data_nodes;
167 // node - recurse down the BSP tree
168 side = BoxOnPlaneSide(mins, maxs, node->plane) - 1;
171 // box is on one side of plane, take that path
172 node = node->children[side];
176 // box crosses plane, take one path and remember the other
177 if (nodestackindex < 1024)
178 nodestack[nodestackindex++] = node->children[0];
179 node = node->children[1];
184 // leaf - check if it is visible
185 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
187 // it is visible, return immediately with the news
192 // nothing to see here, try another path we didn't take earlier
193 if (nodestackindex == 0)
195 node = nodestack[--nodestackindex];
203 typedef struct findnonsolidlocationinfo_s
211 findnonsolidlocationinfo_t;
213 static void Mod_Q1BSP_FindNonSolidLocation_r_Leaf(findnonsolidlocationinfo_t *info, mleaf_t *leaf)
215 int i, surfacenum, k, *tri, *mark;
216 float dist, f, vert[3][3], edge[3][3], facenormal[3], edgenormal[3][3], point[3];
218 for (surfacenum = 0, mark = leaf->firstleafsurface;surfacenum < leaf->numleafsurfaces;surfacenum++, mark++)
220 surface = info->model->brush.data_surfaces + *mark;
221 if (surface->texture->supercontents & SUPERCONTENTS_SOLID)
223 for (k = 0;k < surface->mesh.num_triangles;k++)
225 tri = surface->mesh.data_element3i + k * 3;
226 VectorCopy((surface->mesh.data_vertex3f + tri[0] * 3), vert[0]);
227 VectorCopy((surface->mesh.data_vertex3f + tri[1] * 3), vert[1]);
228 VectorCopy((surface->mesh.data_vertex3f + tri[2] * 3), vert[2]);
229 VectorSubtract(vert[1], vert[0], edge[0]);
230 VectorSubtract(vert[2], vert[1], edge[1]);
231 CrossProduct(edge[1], edge[0], facenormal);
232 if (facenormal[0] || facenormal[1] || facenormal[2])
234 VectorNormalize(facenormal);
235 f = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
236 if (f <= info->bestdist && f >= -info->bestdist)
238 VectorSubtract(vert[0], vert[2], edge[2]);
239 VectorNormalize(edge[0]);
240 VectorNormalize(edge[1]);
241 VectorNormalize(edge[2]);
242 CrossProduct(facenormal, edge[0], edgenormal[0]);
243 CrossProduct(facenormal, edge[1], edgenormal[1]);
244 CrossProduct(facenormal, edge[2], edgenormal[2]);
246 if (DotProduct(info->center, edgenormal[0]) < DotProduct(vert[0], edgenormal[0])
247 && DotProduct(info->center, edgenormal[1]) < DotProduct(vert[1], edgenormal[1])
248 && DotProduct(info->center, edgenormal[2]) < DotProduct(vert[2], edgenormal[2]))
250 // we got lucky, the center is within the face
251 dist = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
255 if (info->bestdist > dist)
257 info->bestdist = dist;
258 VectorScale(facenormal, (info->radius - -dist), info->nudge);
263 if (info->bestdist > dist)
265 info->bestdist = dist;
266 VectorScale(facenormal, (info->radius - dist), info->nudge);
272 // check which edge or vertex the center is nearest
273 for (i = 0;i < 3;i++)
275 f = DotProduct(info->center, edge[i]);
276 if (f >= DotProduct(vert[0], edge[i])
277 && f <= DotProduct(vert[1], edge[i]))
280 VectorMA(info->center, -f, edge[i], point);
281 dist = sqrt(DotProduct(point, point));
282 if (info->bestdist > dist)
284 info->bestdist = dist;
285 VectorScale(point, (info->radius / dist), info->nudge);
287 // skip both vertex checks
288 // (both are further away than this edge)
293 // not on edge, check first vertex of edge
294 VectorSubtract(info->center, vert[i], point);
295 dist = sqrt(DotProduct(point, point));
296 if (info->bestdist > dist)
298 info->bestdist = dist;
299 VectorScale(point, (info->radius / dist), info->nudge);
311 static void Mod_Q1BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, mnode_t *node)
315 float f = PlaneDiff(info->center, node->plane);
316 if (f >= -info->bestdist)
317 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[0]);
318 if (f <= info->bestdist)
319 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[1]);
323 if (((mleaf_t *)node)->numleafsurfaces)
324 Mod_Q1BSP_FindNonSolidLocation_r_Leaf(info, (mleaf_t *)node);
328 static void Mod_Q1BSP_FindNonSolidLocation(model_t *model, const vec3_t in, vec3_t out, float radius)
331 findnonsolidlocationinfo_t info;
337 VectorCopy(in, info.center);
338 info.radius = radius;
343 VectorClear(info.nudge);
344 info.bestdist = radius;
345 Mod_Q1BSP_FindNonSolidLocation_r(&info, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
346 VectorAdd(info.center, info.nudge, info.center);
348 while (info.bestdist < radius && ++i < 10);
349 VectorCopy(info.center, out);
352 int Mod_Q1BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
354 switch(nativecontents)
359 return SUPERCONTENTS_SOLID;
361 return SUPERCONTENTS_WATER;
363 return SUPERCONTENTS_SLIME;
365 return SUPERCONTENTS_LAVA;
367 return SUPERCONTENTS_SKY;
372 int Mod_Q1BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
374 if (supercontents & SUPERCONTENTS_SOLID)
375 return CONTENTS_SOLID;
376 if (supercontents & SUPERCONTENTS_SKY)
378 if (supercontents & SUPERCONTENTS_LAVA)
379 return CONTENTS_LAVA;
380 if (supercontents & SUPERCONTENTS_SLIME)
381 return CONTENTS_SLIME;
382 if (supercontents & SUPERCONTENTS_WATER)
383 return CONTENTS_WATER;
384 return CONTENTS_EMPTY;
389 // the hull we're tracing through
392 // the trace structure to fill in
395 // start, end, and end - start (in model space)
400 RecursiveHullCheckTraceInfo_t;
402 // 1/32 epsilon to keep floating point happy
403 #define DIST_EPSILON (0.03125)
405 #define HULLCHECKSTATE_EMPTY 0
406 #define HULLCHECKSTATE_SOLID 1
407 #define HULLCHECKSTATE_DONE 2
409 static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int num, double p1f, double p2f, double p1[3], double p2[3])
411 // status variables, these don't need to be saved on the stack when
412 // recursing... but are because this should be thread-safe
413 // (note: tracing against a bbox is not thread-safe, yet)
418 // variables that need to be stored on the stack when recursing
423 // LordHavoc: a goto! everyone flee in terror... :)
428 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
429 if (!t->trace->startfound)
431 t->trace->startfound = true;
432 t->trace->startsupercontents |= num;
434 if (num & SUPERCONTENTS_LIQUIDSMASK)
435 t->trace->inwater = true;
437 t->trace->inopen = true;
438 if (num & t->trace->hitsupercontentsmask)
440 // if the first leaf is solid, set startsolid
441 if (t->trace->allsolid)
442 t->trace->startsolid = true;
443 #if COLLISIONPARANOID >= 3
446 return HULLCHECKSTATE_SOLID;
450 t->trace->allsolid = false;
451 #if COLLISIONPARANOID >= 3
454 return HULLCHECKSTATE_EMPTY;
458 // find the point distances
459 node = t->hull->clipnodes + num;
461 plane = t->hull->planes + node->planenum;
464 t1 = p1[plane->type] - plane->dist;
465 t2 = p2[plane->type] - plane->dist;
469 t1 = DotProduct (plane->normal, p1) - plane->dist;
470 t2 = DotProduct (plane->normal, p2) - plane->dist;
477 #if COLLISIONPARANOID >= 3
480 num = node->children[1];
489 #if COLLISIONPARANOID >= 3
492 num = node->children[0];
498 // the line intersects, find intersection point
499 // LordHavoc: this uses the original trace for maximum accuracy
500 #if COLLISIONPARANOID >= 3
505 t1 = t->start[plane->type] - plane->dist;
506 t2 = t->end[plane->type] - plane->dist;
510 t1 = DotProduct (plane->normal, t->start) - plane->dist;
511 t2 = DotProduct (plane->normal, t->end) - plane->dist;
514 midf = t1 / (t1 - t2);
515 midf = bound(p1f, midf, p2f);
516 VectorMA(t->start, midf, t->dist, mid);
518 // recurse both sides, front side first
519 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side], p1f, midf, p1, mid);
520 // if this side is not empty, return what it is (solid or done)
521 if (ret != HULLCHECKSTATE_EMPTY)
524 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side ^ 1], midf, p2f, mid, p2);
525 // if other side is not solid, return what it is (empty or done)
526 if (ret != HULLCHECKSTATE_SOLID)
529 // front is air and back is solid, this is the impact point...
532 t->trace->plane.dist = -plane->dist;
533 VectorNegate (plane->normal, t->trace->plane.normal);
537 t->trace->plane.dist = plane->dist;
538 VectorCopy (plane->normal, t->trace->plane.normal);
541 // calculate the true fraction
542 t1 = DotProduct(t->trace->plane.normal, t->start) - t->trace->plane.dist;
543 t2 = DotProduct(t->trace->plane.normal, t->end) - t->trace->plane.dist;
544 midf = t1 / (t1 - t2);
545 t->trace->realfraction = bound(0, midf, 1);
547 // calculate the return fraction which is nudged off the surface a bit
548 midf = (t1 - DIST_EPSILON) / (t1 - t2);
549 t->trace->fraction = bound(0, midf, 1);
551 #if COLLISIONPARANOID >= 3
554 return HULLCHECKSTATE_DONE;
557 #if COLLISIONPARANOID < 2
558 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
561 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];
562 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
563 t->trace->startsupercontents |= num;
564 if (num & SUPERCONTENTS_LIQUIDSMASK)
565 t->trace->inwater = true;
567 t->trace->inopen = true;
568 if (num & t->trace->hitsupercontentsmask)
570 t->trace->allsolid = t->trace->startsolid = true;
571 return HULLCHECKSTATE_SOLID;
575 t->trace->allsolid = t->trace->startsolid = false;
576 return HULLCHECKSTATE_EMPTY;
581 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)
583 // this function currently only supports same size start and end
585 RecursiveHullCheckTraceInfo_t rhc;
587 memset(&rhc, 0, sizeof(rhc));
588 memset(trace, 0, sizeof(trace_t));
590 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
591 rhc.trace->fraction = 1;
592 rhc.trace->realfraction = 1;
593 rhc.trace->allsolid = true;
594 VectorSubtract(boxstartmaxs, boxstartmins, boxsize);
596 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
597 else if (model->brush.ishlbsp)
599 // LordHavoc: this has to have a minor tolerance (the .1) because of
600 // minor float precision errors from the box being transformed around
601 if (boxsize[0] < 32.1)
603 if (boxsize[2] < 54) // pick the nearest of 36 or 72
604 rhc.hull = &model->brushq1.hulls[3]; // 32x32x36
606 rhc.hull = &model->brushq1.hulls[1]; // 32x32x72
609 rhc.hull = &model->brushq1.hulls[2]; // 64x64x64
613 // LordHavoc: this has to have a minor tolerance (the .1) because of
614 // minor float precision errors from the box being transformed around
615 if (boxsize[0] < 32.1)
616 rhc.hull = &model->brushq1.hulls[1]; // 32x32x56
618 rhc.hull = &model->brushq1.hulls[2]; // 64x64x88
620 VectorSubtract(boxstartmins, rhc.hull->clip_mins, rhc.start);
621 VectorSubtract(boxendmins, rhc.hull->clip_mins, rhc.end);
622 VectorSubtract(rhc.end, rhc.start, rhc.dist);
623 #if COLLISIONPARANOID >= 2
624 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]);
625 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
628 if (DotProduct(rhc.dist, rhc.dist))
629 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
631 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
635 static hull_t box_hull;
636 static dclipnode_t box_clipnodes[6];
637 static mplane_t box_planes[6];
639 static void Mod_Q1BSP_Collision_Init (void)
644 //Set up the planes and clipnodes so that the six floats of a bounding box
645 //can just be stored out and get a proper hull_t structure.
647 box_hull.clipnodes = box_clipnodes;
648 box_hull.planes = box_planes;
649 box_hull.firstclipnode = 0;
650 box_hull.lastclipnode = 5;
652 for (i = 0;i < 6;i++)
654 box_clipnodes[i].planenum = i;
658 box_clipnodes[i].children[side] = CONTENTS_EMPTY;
660 box_clipnodes[i].children[side^1] = i + 1;
662 box_clipnodes[i].children[side^1] = CONTENTS_SOLID;
664 box_planes[i].type = i>>1;
665 box_planes[i].normal[i>>1] = 1;
669 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)
673 colplanef_t cbox_planes[6];
674 cbox.supercontents = boxsupercontents;
677 cbox.numtriangles = 0;
678 cbox.planes = cbox_planes;
680 cbox.elements = NULL;
688 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];
689 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];
690 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];
691 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];
692 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];
693 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];
694 memset(trace, 0, sizeof(trace_t));
695 trace->hitsupercontentsmask = hitsupercontentsmask;
697 trace->realfraction = 1;
698 Collision_TraceLineBrushFloat(trace, start, end, &cbox, &cbox);
700 RecursiveHullCheckTraceInfo_t rhc;
701 // fill in a default trace
702 memset(&rhc, 0, sizeof(rhc));
703 memset(trace, 0, sizeof(trace_t));
704 //To keep everything totally uniform, bounding boxes are turned into small
705 //BSP trees instead of being compared directly.
706 // create a temp hull from bounding box sizes
707 box_planes[0].dist = cmaxs[0] - mins[0];
708 box_planes[1].dist = cmins[0] - maxs[0];
709 box_planes[2].dist = cmaxs[1] - mins[1];
710 box_planes[3].dist = cmins[1] - maxs[1];
711 box_planes[4].dist = cmaxs[2] - mins[2];
712 box_planes[5].dist = cmins[2] - maxs[2];
713 #if COLLISIONPARANOID >= 3
714 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]);
716 // trace a line through the generated clipping hull
717 //rhc.boxsupercontents = boxsupercontents;
718 rhc.hull = &box_hull;
720 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
721 rhc.trace->fraction = 1;
722 rhc.trace->realfraction = 1;
723 rhc.trace->allsolid = true;
724 VectorCopy(start, rhc.start);
725 VectorCopy(end, rhc.end);
726 VectorSubtract(rhc.end, rhc.start, rhc.dist);
727 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
728 //VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
729 if (rhc.trace->startsupercontents)
730 rhc.trace->startsupercontents = boxsupercontents;
734 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)
736 int side, distz = endz - startz;
742 return false; // didn't hit anything
744 switch (node->plane->type)
747 node = node->children[x < node->plane->dist];
750 node = node->children[y < node->plane->dist];
753 side = startz < node->plane->dist;
754 if ((endz < node->plane->dist) == side)
756 node = node->children[side];
759 // found an intersection
760 mid = node->plane->dist;
763 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
764 front += startz * node->plane->normal[2];
765 back += endz * node->plane->normal[2];
766 side = front < node->plane->dist;
767 if ((back < node->plane->dist) == side)
769 node = node->children[side];
772 // found an intersection
773 mid = startz + distz * (front - node->plane->dist) / (front - back);
777 // go down front side
778 if (node->children[side]->plane && Mod_Q1BSP_LightPoint_RecursiveBSPNode(ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
779 return true; // hit something
782 // check for impact on this node
783 if (node->numsurfaces)
788 surface = r_refdef.worldmodel->brush.data_surfaces + node->firstsurface;
789 for (i = 0;i < node->numsurfaces;i++, surface++)
791 if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->samples)
792 continue; // no lightmaps
794 ds = (int) (x * surface->texinfo->vecs[0][0] + y * surface->texinfo->vecs[0][1] + mid * surface->texinfo->vecs[0][2] + surface->texinfo->vecs[0][3]) - surface->texturemins[0];
795 dt = (int) (x * surface->texinfo->vecs[1][0] + y * surface->texinfo->vecs[1][1] + mid * surface->texinfo->vecs[1][2] + surface->texinfo->vecs[1][3]) - surface->texturemins[1];
797 if (ds >= 0 && ds < surface->extents[0] && dt >= 0 && dt < surface->extents[1])
800 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;
801 lmwidth = ((surface->extents[0]>>4)+1);
802 lmheight = ((surface->extents[1]>>4)+1);
803 line3 = lmwidth * 3; // LordHavoc: *3 for colored lighting
804 size3 = lmwidth * lmheight * 3; // LordHavoc: *3 for colored lighting
806 lightmap = surface->samples + ((dt>>4) * lmwidth + (ds>>4))*3; // LordHavoc: *3 for colored lighting
808 for (maps = 0;maps < MAXLIGHTMAPS && surface->styles[maps] != 255;maps++)
810 scale = d_lightstylevalue[surface->styles[maps]];
811 r00 += lightmap[ 0] * scale;g00 += lightmap[ 1] * scale;b00 += lightmap[ 2] * scale;
812 r01 += lightmap[ 3] * scale;g01 += lightmap[ 4] * scale;b01 += lightmap[ 5] * scale;
813 r10 += lightmap[line3+0] * scale;g10 += lightmap[line3+1] * scale;b10 += lightmap[line3+2] * scale;
814 r11 += lightmap[line3+3] * scale;g11 += lightmap[line3+4] * scale;b11 += lightmap[line3+5] * scale;
819 LordHavoc: here's the readable version of the interpolation
820 code, not quite as easy for the compiler to optimize...
822 dsfrac is the X position in the lightmap pixel, * 16
823 dtfrac is the Y position in the lightmap pixel, * 16
824 r00 is top left corner, r01 is top right corner
825 r10 is bottom left corner, r11 is bottom right corner
826 g and b are the same layout.
827 r0 and r1 are the top and bottom intermediate results
829 first we interpolate the top two points, to get the top
832 r0 = (((r01-r00) * dsfrac) >> 4) + r00;
833 g0 = (((g01-g00) * dsfrac) >> 4) + g00;
834 b0 = (((b01-b00) * dsfrac) >> 4) + b00;
836 then we interpolate the bottom two points, to get the
839 r1 = (((r11-r10) * dsfrac) >> 4) + r10;
840 g1 = (((g11-g10) * dsfrac) >> 4) + g10;
841 b1 = (((b11-b10) * dsfrac) >> 4) + b10;
843 then we interpolate the top and bottom samples to get the
844 middle sample (the one which was requested)
846 r = (((r1-r0) * dtfrac) >> 4) + r0;
847 g = (((g1-g0) * dtfrac) >> 4) + g0;
848 b = (((b1-b0) * dtfrac) >> 4) + b0;
851 ambientcolor[0] += (float) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)) * (1.0f / 32768.0f);
852 ambientcolor[1] += (float) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)) * (1.0f / 32768.0f);
853 ambientcolor[2] += (float) ((((((((b11-b10) * dsfrac) >> 4) + b10)-((((b01-b00) * dsfrac) >> 4) + b00)) * dtfrac) >> 4) + ((((b01-b00) * dsfrac) >> 4) + b00)) * (1.0f / 32768.0f);
854 return true; // success
860 node = node->children[side ^ 1];
862 distz = endz - startz;
867 void Mod_Q1BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
869 Mod_Q1BSP_LightPoint_RecursiveBSPNode(ambientcolor, diffusecolor, diffusenormal, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, p[0], p[1], p[2], p[2] - 65536);
872 static void Mod_Q1BSP_DecompressVis(const qbyte *in, const qbyte *inend, qbyte *out, qbyte *outend)
875 qbyte *outstart = out;
880 Con_Printf("Mod_Q1BSP_DecompressVis: input underrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
890 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);
893 for (c = *in++;c > 0;c--)
897 Con_Printf("Mod_Q1BSP_DecompressVis: output overrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
910 A sky texture is 256*128, with the right side being a masked overlay
913 void R_Q1BSP_LoadSplitSky (qbyte *src, int width, int height, int bytesperpixel)
916 unsigned solidpixels[128*128], alphapixels[128*128];
918 // if sky isn't the right size, just use it as a solid layer
919 if (width != 256 || height != 128)
921 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);
922 loadmodel->brush.alphaskytexture = NULL;;
926 if (bytesperpixel == 4)
928 for (i = 0;i < 128;i++)
930 for (j = 0;j < 128;j++)
932 solidpixels[(i*128) + j] = ((unsigned *)src)[i*256+j+128];
933 alphapixels[(i*128) + j] = ((unsigned *)src)[i*256+j];
939 // make an average value for the back to avoid
940 // a fringe on the top level
949 for (i = 0;i < 128;i++)
951 for (j = 0;j < 128;j++)
953 rgba.i = palette_complete[src[i*256 + j + 128]];
959 rgba.b[0] = r/(128*128);
960 rgba.b[1] = g/(128*128);
961 rgba.b[2] = b/(128*128);
963 for (i = 0;i < 128;i++)
965 for (j = 0;j < 128;j++)
967 solidpixels[(i*128) + j] = palette_complete[src[i*256 + j + 128]];
968 alphapixels[(i*128) + j] = (p = src[i*256 + j]) ? palette_complete[p] : rgba.i;
973 loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", 128, 128, (qbyte *) solidpixels, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
974 loadmodel->brush.alphaskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_alphatexture", 128, 128, (qbyte *) alphapixels, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
977 static void Mod_Q1BSP_LoadTextures(lump_t *l)
979 int i, j, k, num, max, altmax, mtwidth, mtheight, *dofs, incomplete;
981 texture_t *tx, *tx2, *anims[10], *altanims[10];
983 qbyte *data, *mtdata;
986 loadmodel->brush.data_textures = NULL;
988 // add two slots for notexture walls and notexture liquids
991 m = (dmiptexlump_t *)(mod_base + l->fileofs);
992 m->nummiptex = LittleLong (m->nummiptex);
993 loadmodel->brush.num_textures = m->nummiptex + 2;
998 loadmodel->brush.num_textures = 2;
1001 loadmodel->brush.data_textures = Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_textures * sizeof(texture_t));
1003 // fill out all slots with notexture
1004 for (i = 0, tx = loadmodel->brush.data_textures;i < loadmodel->brush.num_textures;i++, tx++)
1006 strcpy(tx->name, "NO TEXTURE FOUND");
1009 tx->skin.base = r_texture_notexture;
1010 if (i == loadmodel->brush.num_textures - 1)
1012 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES;
1013 tx->supercontents = SUPERCONTENTS_WATER;
1017 tx->basematerialflags |= MATERIALFLAG_WALL;
1018 tx->supercontents = SUPERCONTENTS_SOLID;
1020 tx->basematerialflags = 0;
1021 tx->currentframe = tx;
1027 // just to work around bounds checking when debugging with it (array index out of bounds error thing)
1029 // LordHavoc: mostly rewritten map texture loader
1030 for (i = 0;i < m->nummiptex;i++)
1032 dofs[i] = LittleLong(dofs[i]);
1033 if (dofs[i] == -1 || r_nosurftextures.integer)
1035 dmiptex = (miptex_t *)((qbyte *)m + dofs[i]);
1037 // make sure name is no more than 15 characters
1038 for (j = 0;dmiptex->name[j] && j < 15;j++)
1039 name[j] = dmiptex->name[j];
1042 mtwidth = LittleLong(dmiptex->width);
1043 mtheight = LittleLong(dmiptex->height);
1045 j = LittleLong(dmiptex->offsets[0]);
1049 if (j < 40 || j + mtwidth * mtheight > l->filelen)
1051 Con_Printf("Texture \"%s\" in \"%s\"is corrupt or incomplete\n", dmiptex->name, loadmodel->name);
1054 mtdata = (qbyte *)dmiptex + j;
1057 if ((mtwidth & 15) || (mtheight & 15))
1058 Con_Printf("warning: texture \"%s\" in \"%s\" is not 16 aligned\n", dmiptex->name, loadmodel->name);
1060 // LordHavoc: force all names to lowercase
1061 for (j = 0;name[j];j++)
1062 if (name[j] >= 'A' && name[j] <= 'Z')
1063 name[j] += 'a' - 'A';
1065 tx = loadmodel->brush.data_textures + i;
1066 strcpy(tx->name, name);
1067 tx->width = mtwidth;
1068 tx->height = mtheight;
1072 sprintf(tx->name, "unnamed%i", i);
1073 Con_Printf("warning: unnamed texture in %s, renaming to %s\n", loadmodel->name, tx->name);
1076 // LordHavoc: HL sky textures are entirely different than quake
1077 if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == 256 && mtheight == 128)
1079 if (loadmodel->isworldmodel)
1081 data = loadimagepixels(tx->name, false, 0, 0);
1084 R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1087 else if (mtdata != NULL)
1088 R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1093 if (!Mod_LoadSkinFrame(&tx->skin, tx->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, tx->name[0] != '*', true))
1095 // did not find external texture, load it from the bsp or wad3
1096 if (loadmodel->brush.ishlbsp)
1098 // internal texture overrides wad
1099 qbyte *pixels, *freepixels, *fogpixels;
1100 pixels = freepixels = NULL;
1102 pixels = W_ConvertWAD3Texture(dmiptex);
1104 pixels = freepixels = W_GetTexture(tx->name);
1107 tx->width = image_width;
1108 tx->height = image_height;
1109 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);
1110 if (Image_CheckAlpha(pixels, image_width * image_height, true))
1112 fogpixels = Mem_Alloc(tempmempool, image_width * image_height * 4);
1113 for (j = 0;j < image_width * image_height * 4;j += 4)
1115 fogpixels[j + 0] = 255;
1116 fogpixels[j + 1] = 255;
1117 fogpixels[j + 2] = 255;
1118 fogpixels[j + 3] = pixels[j + 3];
1120 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);
1121 Mem_Free(fogpixels);
1125 Mem_Free(freepixels);
1127 else if (mtdata) // texture included
1128 Mod_LoadSkinFrame_Internal(&tx->skin, tx->name, TEXF_MIPMAP | TEXF_PRECACHE | TEXF_PICMIP, false, tx->name[0] != '*', tx->name[0] != '*' && r_fullbrights.integer, mtdata, tx->width, tx->height);
1131 if (tx->skin.base == NULL)
1136 tx->skin.base = r_texture_notexture;
1139 tx->basematerialflags = 0;
1140 if (tx->name[0] == '*')
1142 // turb does not block movement
1143 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES;
1144 // LordHavoc: some turbulent textures should be fullbright and solid
1145 if (!strncmp(tx->name,"*lava",5)
1146 || !strncmp(tx->name,"*teleport",9)
1147 || !strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1148 tx->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
1150 tx->basematerialflags |= MATERIALFLAG_WATERALPHA;
1151 if (!strncmp(tx->name, "*lava", 5))
1152 tx->supercontents = SUPERCONTENTS_LAVA;
1153 else if (!strncmp(tx->name, "*slime", 6))
1154 tx->supercontents = SUPERCONTENTS_SLIME;
1156 tx->supercontents = SUPERCONTENTS_WATER;
1158 else if (tx->name[0] == 's' && tx->name[1] == 'k' && tx->name[2] == 'y')
1160 tx->supercontents = SUPERCONTENTS_SKY;
1161 tx->basematerialflags |= MATERIALFLAG_SKY;
1165 tx->supercontents = SUPERCONTENTS_SOLID;
1166 tx->basematerialflags |= MATERIALFLAG_WALL;
1169 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT;
1171 // start out with no animation
1172 tx->currentframe = tx;
1175 // sequence the animations
1176 for (i = 0;i < m->nummiptex;i++)
1178 tx = loadmodel->brush.data_textures + i;
1179 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1181 if (tx->anim_total[0] || tx->anim_total[1])
1182 continue; // already sequenced
1184 // find the number of frames in the animation
1185 memset(anims, 0, sizeof(anims));
1186 memset(altanims, 0, sizeof(altanims));
1188 for (j = i;j < m->nummiptex;j++)
1190 tx2 = loadmodel->brush.data_textures + j;
1191 if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
1195 if (num >= '0' && num <= '9')
1196 anims[num - '0'] = tx2;
1197 else if (num >= 'a' && num <= 'j')
1198 altanims[num - 'a'] = tx2;
1200 Con_Printf("Bad animating texture %s\n", tx->name);
1204 for (j = 0;j < 10;j++)
1211 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
1214 for (j = 0;j < max;j++)
1218 Con_Printf("Missing frame %i of %s\n", j, tx->name);
1222 for (j = 0;j < altmax;j++)
1226 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
1235 // if there is no alternate animation, duplicate the primary
1236 // animation into the alternate
1238 for (k = 0;k < 10;k++)
1239 altanims[k] = anims[k];
1242 // link together the primary animation
1243 for (j = 0;j < max;j++)
1246 tx2->animated = true;
1247 tx2->anim_total[0] = max;
1248 tx2->anim_total[1] = altmax;
1249 for (k = 0;k < 10;k++)
1251 tx2->anim_frames[0][k] = anims[k];
1252 tx2->anim_frames[1][k] = altanims[k];
1256 // if there really is an alternate anim...
1257 if (anims[0] != altanims[0])
1259 // link together the alternate animation
1260 for (j = 0;j < altmax;j++)
1263 tx2->animated = true;
1264 // the primary/alternate are reversed here
1265 tx2->anim_total[0] = altmax;
1266 tx2->anim_total[1] = max;
1267 for (k = 0;k < 10;k++)
1269 tx2->anim_frames[0][k] = altanims[k];
1270 tx2->anim_frames[1][k] = anims[k];
1277 static void Mod_Q1BSP_LoadLighting(lump_t *l)
1280 qbyte *in, *out, *data, d;
1281 char litfilename[1024];
1282 loadmodel->brushq1.lightdata = NULL;
1283 if (loadmodel->brush.ishlbsp) // LordHavoc: load the colored lighting data straight
1285 loadmodel->brushq1.lightdata = Mem_Alloc(loadmodel->mempool, l->filelen);
1286 for (i=0; i<l->filelen; i++)
1287 loadmodel->brushq1.lightdata[i] = mod_base[l->fileofs+i] >>= 1;
1289 else // LordHavoc: bsp version 29 (normal white lighting)
1291 // LordHavoc: hope is not lost yet, check for a .lit file to load
1292 strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
1293 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
1294 strlcat (litfilename, ".lit", sizeof (litfilename));
1295 data = (qbyte*) FS_LoadFile(litfilename, tempmempool, false);
1298 if (fs_filesize > 8 && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1300 i = LittleLong(((int *)data)[1]);
1303 Con_DPrintf("loaded %s\n", litfilename);
1304 loadmodel->brushq1.lightdata = Mem_Alloc(loadmodel->mempool, fs_filesize - 8);
1305 memcpy(loadmodel->brushq1.lightdata, data + 8, fs_filesize - 8);
1311 Con_Printf("Unknown .lit file version (%d)\n", i);
1317 if (fs_filesize == 8)
1318 Con_Print("Empty .lit file, ignoring\n");
1320 Con_Print("Corrupt .lit file (old version?), ignoring\n");
1324 // LordHavoc: oh well, expand the white lighting data
1327 loadmodel->brushq1.lightdata = Mem_Alloc(loadmodel->mempool, l->filelen*3);
1328 in = loadmodel->brushq1.lightdata + l->filelen*2; // place the file at the end, so it will not be overwritten until the very last write
1329 out = loadmodel->brushq1.lightdata;
1330 memcpy(in, mod_base + l->fileofs, l->filelen);
1331 for (i = 0;i < l->filelen;i++)
1341 static void Mod_Q1BSP_LoadLightList(void)
1343 int a, n, numlights;
1344 char tempchar, *s, *t, *lightsstring, lightsfilename[1024];
1347 strlcpy (lightsfilename, loadmodel->name, sizeof (lightsfilename));
1348 FS_StripExtension (lightsfilename, lightsfilename, sizeof(lightsfilename));
1349 strlcat (lightsfilename, ".lights", sizeof (lightsfilename));
1350 s = lightsstring = (char *) FS_LoadFile(lightsfilename, tempmempool, false);
1356 while (*s && *s != '\n' && *s != '\r')
1360 Mem_Free(lightsstring);
1361 Con_Printf("lights file must end with a newline\n");
1367 loadmodel->brushq1.lights = Mem_Alloc(loadmodel->mempool, numlights * sizeof(mlight_t));
1370 while (*s && n < numlights)
1373 while (*s && *s != '\n' && *s != '\r')
1377 Con_Printf("misparsed lights file!\n");
1380 e = loadmodel->brushq1.lights + n;
1383 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);
1387 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);
1397 Con_Printf("misparsed lights file!\n");
1398 loadmodel->brushq1.numlights = numlights;
1399 Mem_Free(lightsstring);
1403 static void Mod_Q1BSP_LoadVisibility(lump_t *l)
1405 loadmodel->brushq1.num_compressedpvs = 0;
1406 loadmodel->brushq1.data_compressedpvs = NULL;
1409 loadmodel->brushq1.num_compressedpvs = l->filelen;
1410 loadmodel->brushq1.data_compressedpvs = Mem_Alloc(loadmodel->mempool, l->filelen);
1411 memcpy(loadmodel->brushq1.data_compressedpvs, mod_base + l->fileofs, l->filelen);
1414 // used only for HalfLife maps
1415 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
1417 char key[128], value[4096];
1422 if (!COM_ParseToken(&data, false))
1424 if (com_token[0] != '{')
1428 if (!COM_ParseToken(&data, false))
1430 if (com_token[0] == '}')
1431 break; // end of worldspawn
1432 if (com_token[0] == '_')
1433 strcpy(key, com_token + 1);
1435 strcpy(key, com_token);
1436 while (key[strlen(key)-1] == ' ') // remove trailing spaces
1437 key[strlen(key)-1] = 0;
1438 if (!COM_ParseToken(&data, false))
1440 strcpy(value, com_token);
1441 if (!strcmp("wad", key)) // for HalfLife maps
1443 if (loadmodel->brush.ishlbsp)
1446 for (i = 0;i < 4096;i++)
1447 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
1453 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
1454 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
1456 else if (value[i] == ';' || value[i] == 0)
1460 strcpy(wadname, "textures/");
1461 strcat(wadname, &value[j]);
1462 W_LoadTextureWadFile(wadname, false);
1474 static void Mod_Q1BSP_LoadEntities(lump_t *l)
1476 loadmodel->brush.entities = NULL;
1479 loadmodel->brush.entities = Mem_Alloc(loadmodel->mempool, l->filelen);
1480 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
1481 if (loadmodel->brush.ishlbsp)
1482 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
1486 static void Mod_Q1BSP_LoadVertexes(lump_t *l)
1492 in = (void *)(mod_base + l->fileofs);
1493 if (l->filelen % sizeof(*in))
1494 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
1495 count = l->filelen / sizeof(*in);
1496 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1498 loadmodel->brushq1.vertexes = out;
1499 loadmodel->brushq1.numvertexes = count;
1501 for ( i=0 ; i<count ; i++, in++, out++)
1503 out->position[0] = LittleFloat(in->point[0]);
1504 out->position[1] = LittleFloat(in->point[1]);
1505 out->position[2] = LittleFloat(in->point[2]);
1509 static void Mod_Q1BSP_LoadSubmodels(lump_t *l)
1515 in = (void *)(mod_base + l->fileofs);
1516 if (l->filelen % sizeof(*in))
1517 Host_Error("Mod_Q1BSP_LoadSubmodels: funny lump size in %s",loadmodel->name);
1518 count = l->filelen / sizeof(*in);
1519 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1521 loadmodel->brushq1.submodels = out;
1522 loadmodel->brush.numsubmodels = count;
1524 for ( i=0 ; i<count ; i++, in++, out++)
1526 for (j=0 ; j<3 ; j++)
1528 // spread the mins / maxs by a pixel
1529 out->mins[j] = LittleFloat(in->mins[j]) - 1;
1530 out->maxs[j] = LittleFloat(in->maxs[j]) + 1;
1531 out->origin[j] = LittleFloat(in->origin[j]);
1533 for (j=0 ; j<MAX_MAP_HULLS ; j++)
1534 out->headnode[j] = LittleLong(in->headnode[j]);
1535 out->visleafs = LittleLong(in->visleafs);
1536 out->firstface = LittleLong(in->firstface);
1537 out->numfaces = LittleLong(in->numfaces);
1541 static void Mod_Q1BSP_LoadEdges(lump_t *l)
1547 in = (void *)(mod_base + l->fileofs);
1548 if (l->filelen % sizeof(*in))
1549 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
1550 count = l->filelen / sizeof(*in);
1551 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1553 loadmodel->brushq1.edges = out;
1554 loadmodel->brushq1.numedges = count;
1556 for ( i=0 ; i<count ; i++, in++, out++)
1558 out->v[0] = (unsigned short)LittleShort(in->v[0]);
1559 out->v[1] = (unsigned short)LittleShort(in->v[1]);
1563 static void Mod_Q1BSP_LoadTexinfo(lump_t *l)
1567 int i, j, k, count, miptex;
1569 in = (void *)(mod_base + l->fileofs);
1570 if (l->filelen % sizeof(*in))
1571 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
1572 count = l->filelen / sizeof(*in);
1573 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1575 loadmodel->brushq1.texinfo = out;
1576 loadmodel->brushq1.numtexinfo = count;
1578 for (i = 0;i < count;i++, in++, out++)
1580 for (k = 0;k < 2;k++)
1581 for (j = 0;j < 4;j++)
1582 out->vecs[k][j] = LittleFloat(in->vecs[k][j]);
1584 miptex = LittleLong(in->miptex);
1585 out->flags = LittleLong(in->flags);
1587 out->texture = NULL;
1588 if (loadmodel->brush.data_textures)
1590 if ((unsigned int) miptex >= (unsigned int) loadmodel->brush.num_textures)
1591 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->brush.num_textures);
1593 out->texture = loadmodel->brush.data_textures + miptex;
1595 if (out->flags & TEX_SPECIAL)
1597 // if texture chosen is NULL or the shader needs a lightmap,
1598 // force to notexture water shader
1599 if (out->texture == NULL || out->texture->basematerialflags & MATERIALFLAG_WALL)
1600 out->texture = loadmodel->brush.data_textures + (loadmodel->brush.num_textures - 1);
1604 // if texture chosen is NULL, force to notexture
1605 if (out->texture == NULL)
1606 out->texture = loadmodel->brush.data_textures + (loadmodel->brush.num_textures - 2);
1612 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
1617 mins[0] = mins[1] = mins[2] = 9999;
1618 maxs[0] = maxs[1] = maxs[2] = -9999;
1620 for (i = 0;i < numverts;i++)
1622 for (j = 0;j < 3;j++, v++)
1632 #define MAX_SUBDIVPOLYTRIANGLES 4096
1633 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
1635 static int subdivpolyverts, subdivpolytriangles;
1636 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
1637 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
1639 static int subdivpolylookupvert(vec3_t v)
1642 for (i = 0;i < subdivpolyverts;i++)
1643 if (subdivpolyvert[i][0] == v[0]
1644 && subdivpolyvert[i][1] == v[1]
1645 && subdivpolyvert[i][2] == v[2])
1647 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
1648 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
1649 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
1650 return subdivpolyverts++;
1653 static void SubdividePolygon(int numverts, float *verts)
1655 int i, i1, i2, i3, f, b, c, p;
1656 vec3_t mins, maxs, front[256], back[256];
1657 float m, *pv, *cv, dist[256], frac;
1660 Host_Error("SubdividePolygon: ran out of verts in buffer");
1662 BoundPoly(numverts, verts, mins, maxs);
1664 for (i = 0;i < 3;i++)
1666 m = (mins[i] + maxs[i]) * 0.5;
1667 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
1668 if (maxs[i] - m < 8)
1670 if (m - mins[i] < 8)
1674 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
1675 dist[c] = cv[i] - m;
1678 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
1682 VectorCopy(pv, front[f]);
1687 VectorCopy(pv, back[b]);
1690 if (dist[p] == 0 || dist[c] == 0)
1692 if ((dist[p] > 0) != (dist[c] > 0) )
1695 frac = dist[p] / (dist[p] - dist[c]);
1696 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
1697 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
1698 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
1704 SubdividePolygon(f, front[0]);
1705 SubdividePolygon(b, back[0]);
1709 i1 = subdivpolylookupvert(verts);
1710 i2 = subdivpolylookupvert(verts + 3);
1711 for (i = 2;i < numverts;i++)
1713 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
1715 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
1719 i3 = subdivpolylookupvert(verts + i * 3);
1720 subdivpolyindex[subdivpolytriangles][0] = i1;
1721 subdivpolyindex[subdivpolytriangles][1] = i2;
1722 subdivpolyindex[subdivpolytriangles][2] = i3;
1724 subdivpolytriangles++;
1728 //Breaks a polygon up along axial 64 unit
1729 //boundaries so that turbulent and sky warps
1730 //can be done reasonably.
1731 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
1737 subdivpolytriangles = 0;
1738 subdivpolyverts = 0;
1739 SubdividePolygon(surface->mesh.num_vertices, surface->mesh.data_vertex3f);
1740 if (subdivpolytriangles < 1)
1741 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?\n");
1743 surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
1744 mesh->num_vertices = subdivpolyverts;
1745 mesh->num_triangles = subdivpolytriangles;
1746 mesh->vertex = (surfvertex_t *)(mesh + 1);
1747 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
1748 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
1750 for (i = 0;i < mesh->num_triangles;i++)
1751 for (j = 0;j < 3;j++)
1752 mesh->index[i*3+j] = subdivpolyindex[i][j];
1754 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
1756 VectorCopy(subdivpolyvert[i], v->v);
1757 v->st[0] = DotProduct(v->v, surface->texinfo->vecs[0]);
1758 v->st[1] = DotProduct(v->v, surface->texinfo->vecs[1]);
1763 static void Mod_Q1BSP_LoadFaces(lump_t *l)
1766 msurface_t *surface;
1767 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris;
1768 float texmins[2], texmaxs[2], val;
1770 in = (void *)(mod_base + l->fileofs);
1771 if (l->filelen % sizeof(*in))
1772 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
1773 count = l->filelen / sizeof(*in);
1774 loadmodel->brush.data_surfaces = Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
1776 loadmodel->brush.num_surfaces = count;
1780 for (surfacenum = 0, in = (void *)(mod_base + l->fileofs);surfacenum < count;surfacenum++, in++)
1782 numedges = LittleShort(in->numedges);
1783 totalverts += numedges;
1784 totaltris += numedges - 2;
1787 // TODO: split up into multiple meshes as needed to avoid exceeding 65536
1789 loadmodel->nummeshes = 1;
1790 loadmodel->meshlist = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t *));
1791 loadmodel->meshlist[0] = Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, 0, 0, true, true, false);
1795 for (surfacenum = 0, in = (void *)(mod_base + l->fileofs), surface = loadmodel->brush.data_surfaces;surfacenum < count;surfacenum++, in++, surface++)
1797 // FIXME: validate edges, texinfo, etc?
1798 firstedge = LittleLong(in->firstedge);
1799 numedges = LittleShort(in->numedges);
1800 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)
1801 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)\n", firstedge, numedges, loadmodel->brushq1.numsurfedges);
1802 i = LittleShort(in->texinfo);
1803 if ((unsigned int) i >= (unsigned int) loadmodel->brushq1.numtexinfo)
1804 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)\n", i, loadmodel->brushq1.numtexinfo);
1805 surface->texinfo = loadmodel->brushq1.texinfo + i;
1806 surface->texture = surface->texinfo->texture;
1808 planenum = LittleShort(in->planenum);
1809 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
1810 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)\n", planenum, loadmodel->brush.num_planes);
1812 //surface->flags = surface->texture->flags;
1813 //if (LittleShort(in->side))
1814 // surface->flags |= SURF_PLANEBACK;
1815 //surface->plane = loadmodel->brush.data_planes + planenum;
1817 surface->mesh.num_vertices = numedges;
1818 surface->mesh.num_triangles = numedges - 2;
1819 surface->mesh.data_vertex3f = loadmodel->meshlist[0]->data_vertex3f + totalverts * 3;
1820 surface->mesh.data_texcoordtexture2f = loadmodel->meshlist[0]->data_texcoordtexture2f + totalverts * 2;
1821 surface->mesh.data_texcoordlightmap2f = loadmodel->meshlist[0]->data_texcoordlightmap2f + totalverts * 2;
1822 surface->mesh.data_texcoorddetail2f = loadmodel->meshlist[0]->data_texcoorddetail2f + totalverts * 2;
1823 surface->mesh.data_svector3f = loadmodel->meshlist[0]->data_svector3f + totalverts * 3;
1824 surface->mesh.data_tvector3f = loadmodel->meshlist[0]->data_tvector3f + totalverts * 3;
1825 surface->mesh.data_normal3f = loadmodel->meshlist[0]->data_normal3f + totalverts * 3;
1826 surface->mesh.data_lightmapoffsets = loadmodel->meshlist[0]->data_lightmapoffsets + totalverts;
1827 surface->mesh.data_element3i = loadmodel->meshlist[0]->data_element3i + totaltris * 3;
1828 surface->mesh.data_neighbor3i = loadmodel->meshlist[0]->data_neighbor3i + totaltris * 3;
1829 totalverts += numedges;
1830 totaltris += numedges - 2;
1832 // convert edges back to a normal polygon
1833 for (i = 0;i < surface->mesh.num_vertices;i++)
1835 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
1838 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, surface->mesh.data_vertex3f + i * 3);
1840 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, surface->mesh.data_vertex3f + i * 3);
1841 s = DotProduct((surface->mesh.data_vertex3f + i * 3), surface->texinfo->vecs[0]) + surface->texinfo->vecs[0][3];
1842 t = DotProduct((surface->mesh.data_vertex3f + i * 3), surface->texinfo->vecs[1]) + surface->texinfo->vecs[1][3];
1843 surface->mesh.data_texcoordtexture2f[i * 2 + 0] = s / surface->texture->width;
1844 surface->mesh.data_texcoordtexture2f[i * 2 + 1] = t / surface->texture->height;
1845 surface->mesh.data_texcoorddetail2f[i * 2 + 0] = s * (1.0f / 16.0f);
1846 surface->mesh.data_texcoorddetail2f[i * 2 + 1] = t * (1.0f / 16.0f);
1847 surface->mesh.data_texcoordlightmap2f[i * 2 + 0] = 0;
1848 surface->mesh.data_texcoordlightmap2f[i * 2 + 1] = 0;
1849 surface->mesh.data_lightmapoffsets[i] = 0;
1852 for (i = 0;i < surface->mesh.num_triangles;i++)
1854 surface->mesh.data_element3i[i * 3 + 0] = 0;
1855 surface->mesh.data_element3i[i * 3 + 1] = i + 1;
1856 surface->mesh.data_element3i[i * 3 + 2] = i + 2;
1859 // compile additional data about the surface geometry
1860 Mod_BuildTriangleNeighbors(surface->mesh.data_neighbor3i, surface->mesh.data_element3i, surface->mesh.num_triangles);
1861 Mod_BuildTextureVectorsAndNormals(surface->mesh.num_vertices, surface->mesh.num_triangles, surface->mesh.data_vertex3f, surface->mesh.data_texcoordtexture2f, surface->mesh.data_element3i, surface->mesh.data_svector3f, surface->mesh.data_tvector3f, surface->mesh.data_normal3f);
1862 BoxFromPoints(surface->mins, surface->maxs, surface->mesh.num_vertices, surface->mesh.data_vertex3f);
1864 // generate surface extents information
1865 texmins[0] = texmaxs[0] = DotProduct(surface->mesh.data_vertex3f, surface->texinfo->vecs[0]) + surface->texinfo->vecs[0][3];
1866 texmins[1] = texmaxs[1] = DotProduct(surface->mesh.data_vertex3f, surface->texinfo->vecs[1]) + surface->texinfo->vecs[1][3];
1867 for (i = 1;i < surface->mesh.num_vertices;i++)
1869 for (j = 0;j < 2;j++)
1871 val = DotProduct(surface->mesh.data_vertex3f + i * 3, surface->texinfo->vecs[j]) + surface->texinfo->vecs[j][3];
1872 texmins[j] = min(texmins[j], val);
1873 texmaxs[j] = max(texmaxs[j], val);
1876 for (i = 0;i < 2;i++)
1878 surface->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
1879 surface->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->texturemins[i];
1882 smax = surface->extents[0] >> 4;
1883 tmax = surface->extents[1] >> 4;
1884 ssize = (surface->extents[0] >> 4) + 1;
1885 tsize = (surface->extents[1] >> 4) + 1;
1888 for (i = 0;i < MAXLIGHTMAPS;i++)
1889 surface->styles[i] = in->styles[i];
1890 // force lightmap upload on first time seeing the surface
1891 surface->cached_dlight = true;
1892 surface->lightmaptexturestride = 0;
1893 surface->lightmaptexture = NULL;
1894 i = LittleLong(in->lightofs);
1897 surface->samples = NULL;
1898 // give non-lightmapped water a 1x white lightmap
1899 if ((surface->texture->basematerialflags & MATERIALFLAG_WATER) && (surface->texinfo->flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
1901 surface->samples = Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
1902 surface->styles[0] = 0;
1903 memset(surface->samples, 128, ssize * tsize * 3);
1906 else if (loadmodel->brush.ishlbsp) // LordHavoc: HalfLife map (bsp version 30)
1907 surface->samples = loadmodel->brushq1.lightdata + i;
1908 else // LordHavoc: white lighting (bsp version 29)
1909 surface->samples = loadmodel->brushq1.lightdata + (i * 3);
1911 if (!(surface->texinfo->flags & TEX_SPECIAL) || surface->samples)
1914 float u, v, ubase, vbase, uscale, vscale;
1916 if (ssize > 256 || tsize > 256)
1917 Host_Error("Bad surface extents");
1918 // stainmap for permanent marks on walls
1919 surface->stainsamples = Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
1921 memset(surface->stainsamples, 255, ssize * tsize * 3);
1923 if (r_miplightmaps.integer)
1925 surface->lightmaptexturestride = ssize;
1926 surface->lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, NULL, surface->lightmaptexturestride, tsize, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_MIPMAP | TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
1930 surface->lightmaptexturestride = R_CompatibleFragmentWidth(ssize, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, 0);
1931 surface->lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, NULL, surface->lightmaptexturestride, tsize, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FRAGMENT | TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
1933 R_FragmentLocation(surface->lightmaptexture, NULL, NULL, &ubase, &vbase, &uscale, &vscale);
1934 uscale = (uscale - ubase) / ssize;
1935 vscale = (vscale - vbase) / tsize;
1937 for (i = 0;i < surface->mesh.num_vertices;i++)
1939 u = ((DotProduct((surface->mesh.data_vertex3f + i * 3), surface->texinfo->vecs[0]) + surface->texinfo->vecs[0][3]) + 8 - surface->texturemins[0]) * (1.0 / 16.0);
1940 v = ((DotProduct((surface->mesh.data_vertex3f + i * 3), surface->texinfo->vecs[1]) + surface->texinfo->vecs[1][3]) + 8 - surface->texturemins[1]) * (1.0 / 16.0);
1941 surface->mesh.data_texcoordlightmap2f[i * 2 + 0] = u * uscale + ubase;
1942 surface->mesh.data_texcoordlightmap2f[i * 2 + 1] = v * vscale + vbase;
1943 // LordHavoc: calc lightmap data offset for vertex lighting to use
1946 surface->mesh.data_lightmapoffsets[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
1952 static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
1955 // Host_Error("Mod_Q1BSP_LoadNodes_RecursiveSetParent: runaway recursion\n");
1956 node->parent = parent;
1959 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
1960 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
1964 static void Mod_Q1BSP_LoadNodes(lump_t *l)
1970 in = (void *)(mod_base + l->fileofs);
1971 if (l->filelen % sizeof(*in))
1972 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
1973 count = l->filelen / sizeof(*in);
1974 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1976 loadmodel->brush.data_nodes = out;
1977 loadmodel->brush.num_nodes = count;
1979 for ( i=0 ; i<count ; i++, in++, out++)
1981 for (j=0 ; j<3 ; j++)
1983 out->mins[j] = LittleShort(in->mins[j]);
1984 out->maxs[j] = LittleShort(in->maxs[j]);
1987 p = LittleLong(in->planenum);
1988 out->plane = loadmodel->brush.data_planes + p;
1990 out->firstsurface = LittleShort(in->firstface);
1991 out->numsurfaces = LittleShort(in->numfaces);
1993 for (j=0 ; j<2 ; j++)
1995 p = LittleShort(in->children[j]);
1997 out->children[j] = loadmodel->brush.data_nodes + p;
1999 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + (-1 - p));
2003 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
2006 static void Mod_Q1BSP_LoadLeafs(lump_t *l)
2012 in = (void *)(mod_base + l->fileofs);
2013 if (l->filelen % sizeof(*in))
2014 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2015 count = l->filelen / sizeof(*in);
2016 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2018 loadmodel->brush.data_leafs = out;
2019 loadmodel->brush.num_leafs = count;
2020 // get visleafs from the submodel data
2021 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2022 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2023 loadmodel->brush.data_pvsclusters = Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2024 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2026 for ( i=0 ; i<count ; i++, in++, out++)
2028 for (j=0 ; j<3 ; j++)
2030 out->mins[j] = LittleShort(in->mins[j]);
2031 out->maxs[j] = LittleShort(in->maxs[j]);
2034 // FIXME: this function could really benefit from some error checking
2036 out->contents = LittleLong(in->contents);
2038 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + LittleShort(in->firstmarksurface);
2039 out->numleafsurfaces = LittleShort(in->nummarksurfaces);
2040 if (out->firstleafsurface < 0 || LittleShort(in->firstmarksurface) + out->numleafsurfaces > loadmodel->brush.num_leafsurfaces)
2042 Con_Printf("Mod_Q1BSP_LoadLeafs: invalid leafsurface range %i:%i outside range %i:%i\n", out->firstleafsurface, out->firstleafsurface + out->numleafsurfaces, 0, loadmodel->brush.num_leafsurfaces);
2043 out->firstleafsurface = NULL;
2044 out->numleafsurfaces = 0;
2047 out->clusterindex = i - 1;
2048 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
2049 out->clusterindex = -1;
2051 p = LittleLong(in->visofs);
2052 // ignore visofs errors on leaf 0 (solid)
2053 if (p >= 0 && out->clusterindex >= 0)
2055 if (p >= loadmodel->brushq1.num_compressedpvs)
2056 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
2058 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);
2061 for (j = 0;j < 4;j++)
2062 out->ambient_sound_level[j] = in->ambient_level[j];
2064 // FIXME: Insert caustics here
2068 static void Mod_Q1BSP_LoadClipnodes(lump_t *l)
2070 dclipnode_t *in, *out;
2074 in = (void *)(mod_base + l->fileofs);
2075 if (l->filelen % sizeof(*in))
2076 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
2077 count = l->filelen / sizeof(*in);
2078 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2080 loadmodel->brushq1.clipnodes = out;
2081 loadmodel->brushq1.numclipnodes = count;
2083 if (loadmodel->brush.ishlbsp)
2085 hull = &loadmodel->brushq1.hulls[1];
2086 hull->clipnodes = out;
2087 hull->firstclipnode = 0;
2088 hull->lastclipnode = count-1;
2089 hull->planes = loadmodel->brush.data_planes;
2090 hull->clip_mins[0] = -16;
2091 hull->clip_mins[1] = -16;
2092 hull->clip_mins[2] = -36;
2093 hull->clip_maxs[0] = 16;
2094 hull->clip_maxs[1] = 16;
2095 hull->clip_maxs[2] = 36;
2096 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2098 hull = &loadmodel->brushq1.hulls[2];
2099 hull->clipnodes = out;
2100 hull->firstclipnode = 0;
2101 hull->lastclipnode = count-1;
2102 hull->planes = loadmodel->brush.data_planes;
2103 hull->clip_mins[0] = -32;
2104 hull->clip_mins[1] = -32;
2105 hull->clip_mins[2] = -32;
2106 hull->clip_maxs[0] = 32;
2107 hull->clip_maxs[1] = 32;
2108 hull->clip_maxs[2] = 32;
2109 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2111 hull = &loadmodel->brushq1.hulls[3];
2112 hull->clipnodes = out;
2113 hull->firstclipnode = 0;
2114 hull->lastclipnode = count-1;
2115 hull->planes = loadmodel->brush.data_planes;
2116 hull->clip_mins[0] = -16;
2117 hull->clip_mins[1] = -16;
2118 hull->clip_mins[2] = -18;
2119 hull->clip_maxs[0] = 16;
2120 hull->clip_maxs[1] = 16;
2121 hull->clip_maxs[2] = 18;
2122 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2126 hull = &loadmodel->brushq1.hulls[1];
2127 hull->clipnodes = out;
2128 hull->firstclipnode = 0;
2129 hull->lastclipnode = count-1;
2130 hull->planes = loadmodel->brush.data_planes;
2131 hull->clip_mins[0] = -16;
2132 hull->clip_mins[1] = -16;
2133 hull->clip_mins[2] = -24;
2134 hull->clip_maxs[0] = 16;
2135 hull->clip_maxs[1] = 16;
2136 hull->clip_maxs[2] = 32;
2137 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2139 hull = &loadmodel->brushq1.hulls[2];
2140 hull->clipnodes = out;
2141 hull->firstclipnode = 0;
2142 hull->lastclipnode = count-1;
2143 hull->planes = loadmodel->brush.data_planes;
2144 hull->clip_mins[0] = -32;
2145 hull->clip_mins[1] = -32;
2146 hull->clip_mins[2] = -24;
2147 hull->clip_maxs[0] = 32;
2148 hull->clip_maxs[1] = 32;
2149 hull->clip_maxs[2] = 64;
2150 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2153 for (i=0 ; i<count ; i++, out++, in++)
2155 out->planenum = LittleLong(in->planenum);
2156 out->children[0] = LittleShort(in->children[0]);
2157 out->children[1] = LittleShort(in->children[1]);
2158 if (out->children[0] >= count || out->children[1] >= count)
2159 Host_Error("Corrupt clipping hull(out of range child)\n");
2163 //Duplicate the drawing hull structure as a clipping hull
2164 static void Mod_Q1BSP_MakeHull0(void)
2171 hull = &loadmodel->brushq1.hulls[0];
2173 in = loadmodel->brush.data_nodes;
2174 out = Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(dclipnode_t));
2176 hull->clipnodes = out;
2177 hull->firstclipnode = 0;
2178 hull->lastclipnode = loadmodel->brush.num_nodes - 1;
2179 hull->planes = loadmodel->brush.data_planes;
2181 for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
2183 out->planenum = in->plane - loadmodel->brush.data_planes;
2184 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
2185 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
2189 static void Mod_Q1BSP_LoadLeaffaces(lump_t *l)
2194 in = (void *)(mod_base + l->fileofs);
2195 if (l->filelen % sizeof(*in))
2196 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
2197 loadmodel->brush.num_leafsurfaces = l->filelen / sizeof(*in);
2198 loadmodel->brush.data_leafsurfaces = Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
2200 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
2202 j = (unsigned) LittleShort(in[i]);
2203 if (j >= loadmodel->brush.num_surfaces)
2204 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
2205 loadmodel->brush.data_leafsurfaces[i] = j;
2209 static void Mod_Q1BSP_LoadSurfedges(lump_t *l)
2214 in = (void *)(mod_base + l->fileofs);
2215 if (l->filelen % sizeof(*in))
2216 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
2217 loadmodel->brushq1.numsurfedges = l->filelen / sizeof(*in);
2218 loadmodel->brushq1.surfedges = Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
2220 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
2221 loadmodel->brushq1.surfedges[i] = LittleLong(in[i]);
2225 static void Mod_Q1BSP_LoadPlanes(lump_t *l)
2231 in = (void *)(mod_base + l->fileofs);
2232 if (l->filelen % sizeof(*in))
2233 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
2235 loadmodel->brush.num_planes = l->filelen / sizeof(*in);
2236 loadmodel->brush.data_planes = out = Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
2238 for (i = 0;i < loadmodel->brush.num_planes;i++, in++, out++)
2240 out->normal[0] = LittleFloat(in->normal[0]);
2241 out->normal[1] = LittleFloat(in->normal[1]);
2242 out->normal[2] = LittleFloat(in->normal[2]);
2243 out->dist = LittleFloat(in->dist);
2249 static void Mod_Q1BSP_LoadMapBrushes(void)
2253 int submodel, numbrushes;
2254 qboolean firstbrush;
2255 char *text, *maptext;
2256 char mapfilename[MAX_QPATH];
2257 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
2258 strlcat (mapfilename, ".map", sizeof (mapfilename));
2259 maptext = (qbyte*) FS_LoadFile(mapfilename, tempmempool, false);
2263 if (!COM_ParseToken(&data, false))
2268 if (!COM_ParseToken(&data, false))
2270 if (com_token[0] != '{')
2276 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
2279 if (!COM_ParseToken(&data, false))
2281 if (com_token[0] == '}')
2282 break; // end of entity
2283 if (com_token[0] == '{')
2290 if (submodel > loadmodel->brush.numsubmodels)
2292 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
2296 model = loadmodel->brush.submodels[submodel];
2303 if (!COM_ParseToken(&data, false))
2305 if (com_token[0] == '}')
2306 break; // end of brush
2307 // each brush face should be this format:
2308 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
2309 // FIXME: support hl .map format
2310 for (pointnum = 0;pointnum < 3;pointnum++)
2312 COM_ParseToken(&data, false);
2313 for (componentnum = 0;componentnum < 3;componentnum++)
2315 COM_ParseToken(&data, false);
2316 point[pointnum][componentnum] = atof(com_token);
2318 COM_ParseToken(&data, false);
2320 COM_ParseToken(&data, false);
2321 strlcpy(facetexture, com_token, sizeof(facetexture));
2322 COM_ParseToken(&data, false);
2323 //scroll_s = atof(com_token);
2324 COM_ParseToken(&data, false);
2325 //scroll_t = atof(com_token);
2326 COM_ParseToken(&data, false);
2327 //rotate = atof(com_token);
2328 COM_ParseToken(&data, false);
2329 //scale_s = atof(com_token);
2330 COM_ParseToken(&data, false);
2331 //scale_t = atof(com_token);
2332 TriangleNormal(point[0], point[1], point[2], planenormal);
2333 VectorNormalizeDouble(planenormal);
2334 planedist = DotProduct(point[0], planenormal);
2335 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
2345 #define MAX_PORTALPOINTS 64
2347 typedef struct portal_s
2350 mnode_t *nodes[2]; // [0] = front side of plane
2351 struct portal_s *next[2];
2353 double points[3*MAX_PORTALPOINTS];
2354 struct portal_s *chain; // all portals are linked into a list
2358 static portal_t *portalchain;
2365 static portal_t *AllocPortal(void)
2368 p = Mem_Alloc(loadmodel->mempool, sizeof(portal_t));
2369 p->chain = portalchain;
2374 static void FreePortal(portal_t *p)
2379 static void Mod_Q1BSP_RecursiveRecalcNodeBBox(mnode_t *node)
2381 // process only nodes (leafs already had their box calculated)
2385 // calculate children first
2386 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[0]);
2387 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[1]);
2389 // make combined bounding box from children
2390 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
2391 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
2392 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
2393 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
2394 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
2395 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
2398 static void Mod_Q1BSP_FinalizePortals(void)
2400 int i, j, numportals, numpoints;
2401 portal_t *p, *pnext;
2404 mleaf_t *leaf, *endleaf;
2406 // recalculate bounding boxes for all leafs(because qbsp is very sloppy)
2407 leaf = loadmodel->brush.data_leafs;
2408 endleaf = leaf + loadmodel->brush.num_leafs;
2409 for (;leaf < endleaf;leaf++)
2411 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
2412 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
2417 if (p->numpoints >= 3)
2419 for (i = 0;i < 2;i++)
2421 leaf = (mleaf_t *)p->nodes[i];
2422 for (j = 0;j < p->numpoints;j++)
2424 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
2425 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
2426 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
2427 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
2428 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
2429 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
2436 Mod_Q1BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes);
2438 // tally up portal and point counts
2444 // note: this check must match the one below or it will usually corrupt memory
2445 // 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
2446 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2449 numpoints += p->numpoints * 2;
2453 loadmodel->brush.data_portals = Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
2454 loadmodel->brush.num_portals = numportals;
2455 loadmodel->brush.data_portalpoints = (void *)((qbyte *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
2456 loadmodel->brush.num_portalpoints = numpoints;
2457 // clear all leaf portal chains
2458 for (i = 0;i < loadmodel->brush.num_leafs;i++)
2459 loadmodel->brush.data_leafs[i].portals = NULL;
2460 // process all portals in the global portal chain, while freeing them
2461 portal = loadmodel->brush.data_portals;
2462 point = loadmodel->brush.data_portalpoints;
2469 // note: this check must match the one above or it will usually corrupt memory
2470 // 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
2471 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2473 // first make the back to front portal(forward portal)
2474 portal->points = point;
2475 portal->numpoints = p->numpoints;
2476 portal->plane.dist = p->plane.dist;
2477 VectorCopy(p->plane.normal, portal->plane.normal);
2478 portal->here = (mleaf_t *)p->nodes[1];
2479 portal->past = (mleaf_t *)p->nodes[0];
2481 for (j = 0;j < portal->numpoints;j++)
2483 VectorCopy(p->points + j*3, point->position);
2486 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2487 PlaneClassify(&portal->plane);
2489 // link into leaf's portal chain
2490 portal->next = portal->here->portals;
2491 portal->here->portals = portal;
2493 // advance to next portal
2496 // then make the front to back portal(backward portal)
2497 portal->points = point;
2498 portal->numpoints = p->numpoints;
2499 portal->plane.dist = -p->plane.dist;
2500 VectorNegate(p->plane.normal, portal->plane.normal);
2501 portal->here = (mleaf_t *)p->nodes[0];
2502 portal->past = (mleaf_t *)p->nodes[1];
2504 for (j = portal->numpoints - 1;j >= 0;j--)
2506 VectorCopy(p->points + j*3, point->position);
2509 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2510 PlaneClassify(&portal->plane);
2512 // link into leaf's portal chain
2513 portal->next = portal->here->portals;
2514 portal->here->portals = portal;
2516 // advance to next portal
2529 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
2532 Host_Error("AddPortalToNodes: NULL front node");
2534 Host_Error("AddPortalToNodes: NULL back node");
2535 if (p->nodes[0] || p->nodes[1])
2536 Host_Error("AddPortalToNodes: already included");
2537 // 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
2539 p->nodes[0] = front;
2540 p->next[0] = (portal_t *)front->portals;
2541 front->portals = (mportal_t *)p;
2544 p->next[1] = (portal_t *)back->portals;
2545 back->portals = (mportal_t *)p;
2550 RemovePortalFromNode
2553 static void RemovePortalFromNodes(portal_t *portal)
2557 void **portalpointer;
2559 for (i = 0;i < 2;i++)
2561 node = portal->nodes[i];
2563 portalpointer = (void **) &node->portals;
2568 Host_Error("RemovePortalFromNodes: portal not in leaf");
2572 if (portal->nodes[0] == node)
2574 *portalpointer = portal->next[0];
2575 portal->nodes[0] = NULL;
2577 else if (portal->nodes[1] == node)
2579 *portalpointer = portal->next[1];
2580 portal->nodes[1] = NULL;
2583 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2587 if (t->nodes[0] == node)
2588 portalpointer = (void **) &t->next[0];
2589 else if (t->nodes[1] == node)
2590 portalpointer = (void **) &t->next[1];
2592 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2597 static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
2600 mnode_t *front, *back, *other_node;
2601 mplane_t clipplane, *plane;
2602 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
2603 int numfrontpoints, numbackpoints;
2604 double frontpoints[3*MAX_PORTALPOINTS], backpoints[3*MAX_PORTALPOINTS];
2606 // if a leaf, we're done
2610 plane = node->plane;
2612 front = node->children[0];
2613 back = node->children[1];
2615 Host_Error("Mod_Q1BSP_RecursiveNodePortals: corrupt node hierarchy");
2617 // create the new portal by generating a polygon for the node plane,
2618 // and clipping it by all of the other portals(which came from nodes above this one)
2619 nodeportal = AllocPortal();
2620 nodeportal->plane = *plane;
2622 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);
2623 nodeportal->numpoints = 4;
2624 side = 0; // shut up compiler warning
2625 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
2627 clipplane = portal->plane;
2628 if (portal->nodes[0] == portal->nodes[1])
2629 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(1)");
2630 if (portal->nodes[0] == node)
2632 else if (portal->nodes[1] == node)
2634 clipplane.dist = -clipplane.dist;
2635 VectorNegate(clipplane.normal, clipplane.normal);
2639 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2641 for (i = 0;i < nodeportal->numpoints*3;i++)
2642 frontpoints[i] = nodeportal->points[i];
2643 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);
2644 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
2648 if (nodeportal->numpoints < 3)
2650 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
2651 nodeportal->numpoints = 0;
2653 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
2655 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
2656 nodeportal->numpoints = 0;
2660 AddPortalToNodes(nodeportal, front, back);
2662 // split the portals of this node along this node's plane and assign them to the children of this node
2663 // (migrating the portals downward through the tree)
2664 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
2666 if (portal->nodes[0] == portal->nodes[1])
2667 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(2)");
2668 if (portal->nodes[0] == node)
2670 else if (portal->nodes[1] == node)
2673 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2674 nextportal = portal->next[side];
2676 other_node = portal->nodes[!side];
2677 RemovePortalFromNodes(portal);
2679 // cut the portal into two portals, one on each side of the node plane
2680 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);
2682 if (!numfrontpoints)
2685 AddPortalToNodes(portal, back, other_node);
2687 AddPortalToNodes(portal, other_node, back);
2693 AddPortalToNodes(portal, front, other_node);
2695 AddPortalToNodes(portal, other_node, front);
2699 // the portal is split
2700 splitportal = AllocPortal();
2701 temp = splitportal->chain;
2702 *splitportal = *portal;
2703 splitportal->chain = temp;
2704 for (i = 0;i < numbackpoints*3;i++)
2705 splitportal->points[i] = backpoints[i];
2706 splitportal->numpoints = numbackpoints;
2707 for (i = 0;i < numfrontpoints*3;i++)
2708 portal->points[i] = frontpoints[i];
2709 portal->numpoints = numfrontpoints;
2713 AddPortalToNodes(portal, front, other_node);
2714 AddPortalToNodes(splitportal, back, other_node);
2718 AddPortalToNodes(portal, other_node, front);
2719 AddPortalToNodes(splitportal, other_node, back);
2724 Mod_Q1BSP_RecursiveNodePortals(front);
2725 Mod_Q1BSP_RecursiveNodePortals(back);
2728 static void Mod_Q1BSP_MakePortals(void)
2731 Mod_Q1BSP_RecursiveNodePortals(loadmodel->brush.data_nodes);
2732 Mod_Q1BSP_FinalizePortals();
2735 static void Mod_Q1BSP_BuildLightmapUpdateChains(mempool_t *mempool, model_t *model)
2737 int i, j, stylecounts[256], totalcount, remapstyles[256];
2738 msurface_t *surface;
2739 memset(stylecounts, 0, sizeof(stylecounts));
2740 for (i = 0;i < model->nummodelsurfaces;i++)
2742 surface = model->brush.data_surfaces + model->firstmodelsurface + i;
2743 for (j = 0;j < MAXLIGHTMAPS;j++)
2744 stylecounts[surface->styles[j]]++;
2747 model->brushq1.light_styles = 0;
2748 for (i = 0;i < 255;i++)
2752 remapstyles[i] = model->brushq1.light_styles++;
2753 totalcount += stylecounts[i] + 1;
2758 model->brushq1.light_style = Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(qbyte));
2759 model->brushq1.light_stylevalue = Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(int));
2760 model->brushq1.light_styleupdatechains = Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(msurface_t **));
2761 model->brushq1.light_styleupdatechainsbuffer = Mem_Alloc(mempool, totalcount * sizeof(msurface_t *));
2762 model->brushq1.light_styles = 0;
2763 for (i = 0;i < 255;i++)
2765 model->brushq1.light_style[model->brushq1.light_styles++] = i;
2767 for (i = 0;i < model->brushq1.light_styles;i++)
2769 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
2770 j += stylecounts[model->brushq1.light_style[i]] + 1;
2772 for (i = 0;i < model->nummodelsurfaces;i++)
2774 surface = model->brush.data_surfaces + model->firstmodelsurface + i;
2775 for (j = 0;j < MAXLIGHTMAPS;j++)
2776 if (surface->styles[j] != 255)
2777 *model->brushq1.light_styleupdatechains[remapstyles[surface->styles[j]]]++ = surface;
2780 for (i = 0;i < model->brushq1.light_styles;i++)
2782 *model->brushq1.light_styleupdatechains[i] = NULL;
2783 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
2784 j += stylecounts[model->brushq1.light_style[i]] + 1;
2788 //Returns PVS data for a given point
2789 //(note: can return NULL)
2790 static qbyte *Mod_Q1BSP_GetPVS(model_t *model, const vec3_t p)
2793 Mod_CheckLoaded(model);
2794 node = model->brush.data_nodes;
2796 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
2797 if (((mleaf_t *)node)->clusterindex >= 0)
2798 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
2803 static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, qbyte *pvsbuffer, int pvsbytes, mnode_t *node)
2807 float d = PlaneDiff(org, node->plane);
2809 node = node->children[0];
2810 else if (d < -radius)
2811 node = node->children[1];
2814 // go down both sides
2815 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
2816 node = node->children[1];
2819 // if this leaf is in a cluster, accumulate the pvs bits
2820 if (((mleaf_t *)node)->clusterindex >= 0)
2823 qbyte *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
2824 for (i = 0;i < pvsbytes;i++)
2825 pvsbuffer[i] |= pvs[i];
2829 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
2830 //of the given point.
2831 static int Mod_Q1BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, qbyte *pvsbuffer, int pvsbufferlength)
2833 int bytes = model->brush.num_pvsclusterbytes;
2834 bytes = min(bytes, pvsbufferlength);
2835 if (r_novis.integer || !model->brush.num_pvsclusters || !Mod_Q1BSP_GetPVS(model, org))
2837 memset(pvsbuffer, 0xFF, bytes);
2840 memset(pvsbuffer, 0, bytes);
2841 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes);
2845 static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
2850 VectorSubtract(inmaxs, inmins, size);
2851 if (cmodel->brush.ishlbsp)
2854 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
2855 else if (size[0] <= 32)
2857 if (size[2] < 54) // pick the nearest of 36 or 72
2858 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
2860 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
2863 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
2868 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
2869 else if (size[0] <= 32)
2870 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
2872 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
2874 VectorCopy(inmins, outmins);
2875 VectorAdd(inmins, hull->clip_size, outmaxs);
2878 extern void R_Q1BSP_DrawSky(entity_render_t *ent);
2879 extern void R_Q1BSP_Draw(entity_render_t *ent);
2880 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);
2881 extern void R_Q1BSP_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist, const vec3_t lightmins, const vec3_t lightmaxs);
2882 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);
2883 void Mod_Q1BSP_Load(model_t *mod, void *buffer)
2888 mempool_t *mainmempool;
2889 float dist, modelyawradius, modelradius, *vec;
2890 msurface_t *surface;
2891 int numshadowmeshtriangles;
2893 mod->type = mod_brushq1;
2895 header = (dheader_t *)buffer;
2897 i = LittleLong(header->version);
2898 if (i != BSPVERSION && i != 30)
2899 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i(Quake) or 30(HalfLife))", mod->name, i, BSPVERSION);
2900 mod->brush.ishlbsp = i == 30;
2902 mod->soundfromcenter = true;
2903 mod->TraceBox = Mod_Q1BSP_TraceBox;
2904 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
2905 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
2906 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
2907 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
2908 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
2909 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
2910 mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
2911 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
2912 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
2913 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
2914 mod->brushq1.PointInLeaf = Mod_Q1BSP_PointInLeaf;
2916 if (loadmodel->isworldmodel)
2917 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
2919 // swap all the lumps
2920 mod_base = (qbyte *)header;
2922 header->version = LittleLong(header->version);
2923 for (i = 0;i < HEADER_LUMPS;i++)
2925 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
2926 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
2931 // store which lightmap format to use
2932 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
2934 Mod_Q1BSP_LoadEntities(&header->lumps[LUMP_ENTITIES]);
2935 Mod_Q1BSP_LoadVertexes(&header->lumps[LUMP_VERTEXES]);
2936 Mod_Q1BSP_LoadEdges(&header->lumps[LUMP_EDGES]);
2937 Mod_Q1BSP_LoadSurfedges(&header->lumps[LUMP_SURFEDGES]);
2938 Mod_Q1BSP_LoadTextures(&header->lumps[LUMP_TEXTURES]);
2939 Mod_Q1BSP_LoadLighting(&header->lumps[LUMP_LIGHTING]);
2940 Mod_Q1BSP_LoadPlanes(&header->lumps[LUMP_PLANES]);
2941 Mod_Q1BSP_LoadTexinfo(&header->lumps[LUMP_TEXINFO]);
2942 Mod_Q1BSP_LoadFaces(&header->lumps[LUMP_FACES]);
2943 Mod_Q1BSP_LoadLeaffaces(&header->lumps[LUMP_MARKSURFACES]);
2944 Mod_Q1BSP_LoadVisibility(&header->lumps[LUMP_VISIBILITY]);
2945 // load submodels before leafs because they contain the number of vis leafs
2946 Mod_Q1BSP_LoadSubmodels(&header->lumps[LUMP_MODELS]);
2947 Mod_Q1BSP_LoadLeafs(&header->lumps[LUMP_LEAFS]);
2948 Mod_Q1BSP_LoadNodes(&header->lumps[LUMP_NODES]);
2949 Mod_Q1BSP_LoadClipnodes(&header->lumps[LUMP_CLIPNODES]);
2951 if (!mod->brushq1.lightdata)
2952 mod->brush.LightPoint = NULL;
2954 if (mod->brushq1.data_compressedpvs)
2955 Mem_Free(mod->brushq1.data_compressedpvs);
2956 mod->brushq1.data_compressedpvs = NULL;
2957 mod->brushq1.num_compressedpvs = 0;
2959 Mod_Q1BSP_MakeHull0();
2960 Mod_Q1BSP_MakePortals();
2962 mod->numframes = 2; // regular and alternate animation
2965 mainmempool = mod->mempool;
2967 Mod_Q1BSP_LoadLightList();
2969 // make a single combined shadow mesh to allow optimized shadow volume creation
2970 numshadowmeshtriangles = 0;
2971 for (j = 0, surface = loadmodel->brush.data_surfaces;j < loadmodel->brush.num_surfaces;j++, surface++)
2973 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
2974 numshadowmeshtriangles += surface->mesh.num_triangles;
2976 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
2977 for (j = 0, surface = loadmodel->brush.data_surfaces;j < loadmodel->brush.num_surfaces;j++, surface++)
2978 Mod_ShadowMesh_AddMesh(loadmodel->mempool, loadmodel->brush.shadowmesh, NULL, NULL, NULL, surface->mesh.data_vertex3f, NULL, NULL, NULL, NULL, surface->mesh.num_triangles, surface->mesh.data_element3i);
2979 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
2980 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
2982 if (loadmodel->brush.numsubmodels)
2983 loadmodel->brush.submodels = Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
2985 if (loadmodel->isworldmodel)
2987 // clear out any stale submodels or worldmodels lying around
2988 // if we did this clear before now, an error might abort loading and
2989 // leave things in a bad state
2990 Mod_RemoveStaleWorldModels(loadmodel);
2993 // LordHavoc: to clear the fog around the original quake submodel code, I
2995 // first of all, some background info on the submodels:
2996 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
2997 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
2998 // now the weird for loop itself:
2999 // the loop functions in an odd way, on each iteration it sets up the
3000 // current 'mod' model (which despite the confusing code IS the model of
3001 // the number i), at the end of the loop it duplicates the model to become
3002 // the next submodel, and loops back to set up the new submodel.
3004 // LordHavoc: now the explanation of my sane way (which works identically):
3005 // set up the world model, then on each submodel copy from the world model
3006 // and set up the submodel with the respective model info.
3007 for (i = 0;i < mod->brush.numsubmodels;i++)
3009 // LordHavoc: this code was originally at the end of this loop, but
3010 // has been transformed to something more readable at the start here.
3015 // LordHavoc: only register submodels if it is the world
3016 // (prevents external bsp models from replacing world submodels with
3018 if (!loadmodel->isworldmodel)
3020 // duplicate the basic information
3021 sprintf(name, "*%i", i);
3022 mod = Mod_FindName(name);
3023 // copy the base model to this one
3025 // rename the clone back to its proper name
3026 strcpy(mod->name, name);
3027 // textures and memory belong to the main model
3028 mod->texturepool = NULL;
3029 mod->mempool = NULL;
3032 mod->brush.submodel = i;
3034 if (loadmodel->brush.submodels)
3035 loadmodel->brush.submodels[i] = mod;
3037 bm = &mod->brushq1.submodels[i];
3039 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
3040 for (j=1 ; j<MAX_MAP_HULLS ; j++)
3042 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
3043 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
3046 mod->firstmodelsurface = bm->firstface;
3047 mod->nummodelsurfaces = bm->numfaces;
3049 // make the model surface list (used by shadowing/lighting)
3050 mod->surfacelist = Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
3051 for (j = 0;j < mod->nummodelsurfaces;j++)
3052 mod->surfacelist[j] = mod->firstmodelsurface + j;
3054 // this gets altered below if sky is used
3055 mod->DrawSky = NULL;
3056 mod->Draw = R_Q1BSP_Draw;
3057 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
3058 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
3059 mod->DrawLight = R_Q1BSP_DrawLight;
3062 mod->brush.GetPVS = NULL;
3063 mod->brush.FatPVS = NULL;
3064 mod->brush.BoxTouchingPVS = NULL;
3065 mod->brush.BoxTouchingVisibleLeafs = NULL;
3066 mod->brush.LightPoint = NULL;
3067 mod->brush.AmbientSoundLevelsForPoint = NULL;
3069 Mod_Q1BSP_BuildLightmapUpdateChains(loadmodel->mempool, mod);
3070 if (mod->nummodelsurfaces)
3072 // LordHavoc: calculate bmodel bounding box rather than trusting what it says
3073 mod->normalmins[0] = mod->normalmins[1] = mod->normalmins[2] = 1000000000.0f;
3074 mod->normalmaxs[0] = mod->normalmaxs[1] = mod->normalmaxs[2] = -1000000000.0f;
3077 for (j = 0, surface = &mod->brush.data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
3079 // we only need to have a drawsky function if it is used(usually only on world model)
3080 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
3081 mod->DrawSky = R_Q1BSP_DrawSky;
3082 // calculate bounding shapes
3083 for (k = 0, vec = surface->mesh.data_vertex3f;k < surface->mesh.num_vertices;k++, vec += 3)
3085 if (mod->normalmins[0] > vec[0]) mod->normalmins[0] = vec[0];
3086 if (mod->normalmins[1] > vec[1]) mod->normalmins[1] = vec[1];
3087 if (mod->normalmins[2] > vec[2]) mod->normalmins[2] = vec[2];
3088 if (mod->normalmaxs[0] < vec[0]) mod->normalmaxs[0] = vec[0];
3089 if (mod->normalmaxs[1] < vec[1]) mod->normalmaxs[1] = vec[1];
3090 if (mod->normalmaxs[2] < vec[2]) mod->normalmaxs[2] = vec[2];
3091 dist = vec[0]*vec[0]+vec[1]*vec[1];
3092 if (modelyawradius < dist)
3093 modelyawradius = dist;
3094 dist += vec[2]*vec[2];
3095 if (modelradius < dist)
3099 modelyawradius = sqrt(modelyawradius);
3100 modelradius = sqrt(modelradius);
3101 mod->yawmins[0] = mod->yawmins[1] = - (mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius);
3102 mod->yawmins[2] = mod->normalmins[2];
3103 mod->yawmaxs[2] = mod->normalmaxs[2];
3104 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
3105 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
3106 mod->radius = modelradius;
3107 mod->radius2 = modelradius * modelradius;
3111 // LordHavoc: empty submodel(lacrima.bsp has such a glitch)
3112 Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
3114 //mod->brushq1.num_visleafs = bm->visleafs;
3117 Mod_Q1BSP_LoadMapBrushes();
3119 //Mod_Q1BSP_ProcessLightList();
3121 if (developer.integer)
3122 Con_Printf("Some stats for q1bsp model \"%s\": %i faces, %i nodes, %i leafs, %i visleafs, %i visleafportals\n", loadmodel->name, loadmodel->brush.num_surfaces, loadmodel->brush.num_nodes, loadmodel->brush.num_leafs, mod->brushq1.submodels[i].visleafs, loadmodel->brush.num_portals);
3125 static void Mod_Q2BSP_LoadEntities(lump_t *l)
3129 static void Mod_Q2BSP_LoadPlanes(lump_t *l)
3136 in = (void *)(mod_base + l->fileofs);
3137 if (l->filelen % sizeof(*in))
3138 Host_Error("Mod_Q2BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
3139 count = l->filelen / sizeof(*in);
3140 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3143 loadmodel->num = count;
3145 for (i = 0;i < count;i++, in++, out++)
3151 static void Mod_Q2BSP_LoadVertices(lump_t *l)
3158 in = (void *)(mod_base + l->fileofs);
3159 if (l->filelen % sizeof(*in))
3160 Host_Error("Mod_Q2BSP_LoadVertices: funny lump size in %s",loadmodel->name);
3161 count = l->filelen / sizeof(*in);
3162 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3165 loadmodel->num = count;
3167 for (i = 0;i < count;i++, in++, out++)
3173 static void Mod_Q2BSP_LoadVisibility(lump_t *l)
3180 in = (void *)(mod_base + l->fileofs);
3181 if (l->filelen % sizeof(*in))
3182 Host_Error("Mod_Q2BSP_LoadVisibility: funny lump size in %s",loadmodel->name);
3183 count = l->filelen / sizeof(*in);
3184 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3187 loadmodel->num = count;
3189 for (i = 0;i < count;i++, in++, out++)
3195 static void Mod_Q2BSP_LoadNodes(lump_t *l)
3202 in = (void *)(mod_base + l->fileofs);
3203 if (l->filelen % sizeof(*in))
3204 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
3205 count = l->filelen / sizeof(*in);
3206 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3209 loadmodel->num = count;
3211 for (i = 0;i < count;i++, in++, out++)
3217 static void Mod_Q2BSP_LoadTexInfo(lump_t *l)
3224 in = (void *)(mod_base + l->fileofs);
3225 if (l->filelen % sizeof(*in))
3226 Host_Error("Mod_Q2BSP_LoadTexInfo: funny lump size in %s",loadmodel->name);
3227 count = l->filelen / sizeof(*in);
3228 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3231 loadmodel->num = count;
3233 for (i = 0;i < count;i++, in++, out++)
3239 static void Mod_Q2BSP_LoadFaces(lump_t *l)
3246 in = (void *)(mod_base + l->fileofs);
3247 if (l->filelen % sizeof(*in))
3248 Host_Error("Mod_Q2BSP_LoadFaces: funny lump size in %s",loadmodel->name);
3249 count = l->filelen / sizeof(*in);
3250 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3253 loadmodel->num = count;
3255 for (i = 0;i < count;i++, in++, out++)
3261 static void Mod_Q2BSP_LoadLighting(lump_t *l)
3268 in = (void *)(mod_base + l->fileofs);
3269 if (l->filelen % sizeof(*in))
3270 Host_Error("Mod_Q2BSP_LoadLighting: funny lump size in %s",loadmodel->name);
3271 count = l->filelen / sizeof(*in);
3272 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3275 loadmodel->num = count;
3277 for (i = 0;i < count;i++, in++, out++)
3283 static void Mod_Q2BSP_LoadLeafs(lump_t *l)
3290 in = (void *)(mod_base + l->fileofs);
3291 if (l->filelen % sizeof(*in))
3292 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
3293 count = l->filelen / sizeof(*in);
3294 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3297 loadmodel->num = count;
3299 for (i = 0;i < count;i++, in++, out++)
3305 static void Mod_Q2BSP_LoadLeafFaces(lump_t *l)
3312 in = (void *)(mod_base + l->fileofs);
3313 if (l->filelen % sizeof(*in))
3314 Host_Error("Mod_Q2BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
3315 count = l->filelen / sizeof(*in);
3316 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3319 loadmodel->num = count;
3321 for (i = 0;i < count;i++, in++, out++)
3327 static void Mod_Q2BSP_LoadLeafBrushes(lump_t *l)
3334 in = (void *)(mod_base + l->fileofs);
3335 if (l->filelen % sizeof(*in))
3336 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
3337 count = l->filelen / sizeof(*in);
3338 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3341 loadmodel->num = count;
3343 for (i = 0;i < count;i++, in++, out++)
3349 static void Mod_Q2BSP_LoadEdges(lump_t *l)
3356 in = (void *)(mod_base + l->fileofs);
3357 if (l->filelen % sizeof(*in))
3358 Host_Error("Mod_Q2BSP_LoadEdges: funny lump size in %s",loadmodel->name);
3359 count = l->filelen / sizeof(*in);
3360 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3363 loadmodel->num = count;
3365 for (i = 0;i < count;i++, in++, out++)
3371 static void Mod_Q2BSP_LoadSurfEdges(lump_t *l)
3378 in = (void *)(mod_base + l->fileofs);
3379 if (l->filelen % sizeof(*in))
3380 Host_Error("Mod_Q2BSP_LoadSurfEdges: funny lump size in %s",loadmodel->name);
3381 count = l->filelen / sizeof(*in);
3382 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3385 loadmodel->num = count;
3387 for (i = 0;i < count;i++, in++, out++)
3393 static void Mod_Q2BSP_LoadBrushes(lump_t *l)
3400 in = (void *)(mod_base + l->fileofs);
3401 if (l->filelen % sizeof(*in))
3402 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
3403 count = l->filelen / sizeof(*in);
3404 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3407 loadmodel->num = count;
3409 for (i = 0;i < count;i++, in++, out++)
3415 static void Mod_Q2BSP_LoadBrushSides(lump_t *l)
3422 in = (void *)(mod_base + l->fileofs);
3423 if (l->filelen % sizeof(*in))
3424 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
3425 count = l->filelen / sizeof(*in);
3426 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3429 loadmodel->num = count;
3431 for (i = 0;i < count;i++, in++, out++)
3437 static void Mod_Q2BSP_LoadAreas(lump_t *l)
3444 in = (void *)(mod_base + l->fileofs);
3445 if (l->filelen % sizeof(*in))
3446 Host_Error("Mod_Q2BSP_LoadAreas: funny lump size in %s",loadmodel->name);
3447 count = l->filelen / sizeof(*in);
3448 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3451 loadmodel->num = count;
3453 for (i = 0;i < count;i++, in++, out++)
3459 static void Mod_Q2BSP_LoadAreaPortals(lump_t *l)
3466 in = (void *)(mod_base + l->fileofs);
3467 if (l->filelen % sizeof(*in))
3468 Host_Error("Mod_Q2BSP_LoadAreaPortals: funny lump size in %s",loadmodel->name);
3469 count = l->filelen / sizeof(*in);
3470 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3473 loadmodel->num = count;
3475 for (i = 0;i < count;i++, in++, out++)
3481 static void Mod_Q2BSP_LoadModels(lump_t *l)
3488 in = (void *)(mod_base + l->fileofs);
3489 if (l->filelen % sizeof(*in))
3490 Host_Error("Mod_Q2BSP_LoadModels: funny lump size in %s",loadmodel->name);
3491 count = l->filelen / sizeof(*in);
3492 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3495 loadmodel->num = count;
3497 for (i = 0;i < count;i++, in++, out++)
3503 void static Mod_Q2BSP_Load(model_t *mod, void *buffer)
3506 q2dheader_t *header;
3508 Host_Error("Mod_Q2BSP_Load: not yet implemented\n");
3510 mod->type = mod_brushq2;
3512 header = (q2dheader_t *)buffer;
3514 i = LittleLong(header->version);
3515 if (i != Q2BSPVERSION)
3516 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
3517 mod->brush.ishlbsp = false;
3518 if (loadmodel->isworldmodel)
3519 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3521 mod_base = (qbyte *)header;
3523 // swap all the lumps
3524 for (i = 0;i < (int) sizeof(*header) / 4;i++)
3525 ((int *)header)[i] = LittleLong(((int *)header)[i]);
3527 // store which lightmap format to use
3528 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3530 Mod_Q2BSP_LoadEntities(&header->lumps[Q2LUMP_ENTITIES]);
3531 Mod_Q2BSP_LoadPlanes(&header->lumps[Q2LUMP_PLANES]);
3532 Mod_Q2BSP_LoadVertices(&header->lumps[Q2LUMP_VERTEXES]);
3533 Mod_Q2BSP_LoadVisibility(&header->lumps[Q2LUMP_VISIBILITY]);
3534 Mod_Q2BSP_LoadNodes(&header->lumps[Q2LUMP_NODES]);
3535 Mod_Q2BSP_LoadTexInfo(&header->lumps[Q2LUMP_TEXINFO]);
3536 Mod_Q2BSP_LoadFaces(&header->lumps[Q2LUMP_FACES]);
3537 Mod_Q2BSP_LoadLighting(&header->lumps[Q2LUMP_LIGHTING]);
3538 Mod_Q2BSP_LoadLeafs(&header->lumps[Q2LUMP_LEAFS]);
3539 Mod_Q2BSP_LoadLeafFaces(&header->lumps[Q2LUMP_LEAFFACES]);
3540 Mod_Q2BSP_LoadLeafBrushes(&header->lumps[Q2LUMP_LEAFBRUSHES]);
3541 Mod_Q2BSP_LoadEdges(&header->lumps[Q2LUMP_EDGES]);
3542 Mod_Q2BSP_LoadSurfEdges(&header->lumps[Q2LUMP_SURFEDGES]);
3543 Mod_Q2BSP_LoadBrushes(&header->lumps[Q2LUMP_BRUSHES]);
3544 Mod_Q2BSP_LoadBrushSides(&header->lumps[Q2LUMP_BRUSHSIDES]);
3545 Mod_Q2BSP_LoadAreas(&header->lumps[Q2LUMP_AREAS]);
3546 Mod_Q2BSP_LoadAreaPortals(&header->lumps[Q2LUMP_AREAPORTALS]);
3547 // LordHavoc: must go last because this makes the submodels
3548 Mod_Q2BSP_LoadModels(&header->lumps[Q2LUMP_MODELS]);
3551 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents);
3552 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents);
3554 static void Mod_Q3BSP_LoadEntities(lump_t *l)
3557 char key[128], value[4096];
3559 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
3560 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
3561 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
3564 loadmodel->brush.entities = Mem_Alloc(loadmodel->mempool, l->filelen);
3565 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
3566 data = loadmodel->brush.entities;
3567 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
3568 if (data && COM_ParseToken(&data, false) && com_token[0] == '{')
3572 if (!COM_ParseToken(&data, false))
3574 if (com_token[0] == '}')
3575 break; // end of worldspawn
3576 if (com_token[0] == '_')
3577 strcpy(key, com_token + 1);
3579 strcpy(key, com_token);
3580 while (key[strlen(key)-1] == ' ') // remove trailing spaces
3581 key[strlen(key)-1] = 0;
3582 if (!COM_ParseToken(&data, false))
3584 strcpy(value, com_token);
3585 if (!strcmp("gridsize", key))
3587 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
3588 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
3594 static void Mod_Q3BSP_LoadTextures(lump_t *l)
3603 int flags, flags2, numparameters, passnumber;
3604 char shadername[Q3PATHLENGTH];
3605 char sky[Q3PATHLENGTH];
3606 char firstpasstexturename[Q3PATHLENGTH];
3607 char parameter[4][Q3PATHLENGTH];
3609 in = (void *)(mod_base + l->fileofs);
3610 if (l->filelen % sizeof(*in))
3611 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
3612 count = l->filelen / sizeof(*in);
3613 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3615 loadmodel->brush.data_textures = out;
3616 loadmodel->brush.num_textures = count;
3618 for (i = 0;i < count;i++, in++, out++)
3620 strlcpy (out->name, in->name, sizeof (out->name));
3621 out->surfaceflags = LittleLong(in->surfaceflags);
3622 out->supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in->contents));
3623 out->surfaceparms = -1;
3626 // do a quick parse of shader files to get surfaceparms
3627 if ((search = FS_Search("scripts/*.shader", true, false)))
3629 for (i = 0;i < search->numfilenames;i++)
3631 if ((f = FS_LoadFile(search->filenames[i], tempmempool, false)))
3634 while (COM_ParseToken(&text, false))
3636 strlcpy (shadername, com_token, sizeof (shadername));
3641 firstpasstexturename[0] = 0;
3642 if (COM_ParseToken(&text, false) && !strcasecmp(com_token, "{"))
3644 while (COM_ParseToken(&text, false))
3646 if (!strcasecmp(com_token, "}"))
3648 else if (!strcasecmp(com_token, "{"))
3650 while (COM_ParseToken(&text, false))
3652 if (!strcasecmp(com_token, "}"))
3654 if (!strcasecmp(com_token, "\n"))
3657 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
3661 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
3662 numparameters = j + 1;
3664 if (!COM_ParseToken(&text, true))
3667 if (developer.integer >= 2)
3669 Con_Printf("%s %i: ", shadername, passnumber);
3670 for (j = 0;j < numparameters;j++)
3671 Con_Printf(" %s", parameter[j]);
3674 if (passnumber == 0 && numparameters >= 1)
3676 if (!strcasecmp(parameter[0], "blendfunc"))
3678 if (numparameters == 2 && !strcasecmp(parameter[1], "add"))
3679 flags2 |= Q3TEXTUREFLAG_ADDITIVE;
3680 else if (numparameters == 3 && !strcasecmp(parameter[1], "gl_one") && !strcasecmp(parameter[2], "gl_one"))
3681 flags2 |= Q3TEXTUREFLAG_ADDITIVE;
3682 else if (numparameters == 3 && !strcasecmp(parameter[1], "gl_src_alpha") && !strcasecmp(parameter[2], "gl_one"))
3683 flags2 |= Q3TEXTUREFLAG_ADDITIVE;
3685 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
3686 strlcpy(firstpasstexturename, parameter[1], sizeof(firstpasstexturename));
3687 else if (numparameters >= 3 && !strcasecmp(parameter[0], "animmap"))
3688 strlcpy(firstpasstexturename, parameter[2], sizeof(firstpasstexturename));
3690 if (!strcasecmp(parameter[0], "alphafunc"))
3691 flags2 |= Q3TEXTUREFLAG_ALPHATEST;
3692 // break out a level if it was }
3693 if (!strcasecmp(com_token, "}"))
3700 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
3704 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
3705 numparameters = j + 1;
3707 if (!COM_ParseToken(&text, true))
3710 if (i == 0 && !strcasecmp(com_token, "}"))
3712 if (developer.integer >= 2)
3714 Con_Printf("%s: ", shadername);
3715 for (j = 0;j < numparameters;j++)
3716 Con_Printf(" %s", parameter[j]);
3719 if (numparameters < 1)
3721 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
3723 if (!strcasecmp(parameter[1], "alphashadow"))
3724 flags |= Q3SURFACEPARM_ALPHASHADOW;
3725 else if (!strcasecmp(parameter[1], "areaportal"))
3726 flags |= Q3SURFACEPARM_AREAPORTAL;
3727 else if (!strcasecmp(parameter[1], "clusterportal"))
3728 flags |= Q3SURFACEPARM_CLUSTERPORTAL;
3729 else if (!strcasecmp(parameter[1], "detail"))
3730 flags |= Q3SURFACEPARM_DETAIL;
3731 else if (!strcasecmp(parameter[1], "donotenter"))
3732 flags |= Q3SURFACEPARM_DONOTENTER;
3733 else if (!strcasecmp(parameter[1], "fog"))
3734 flags |= Q3SURFACEPARM_FOG;
3735 else if (!strcasecmp(parameter[1], "lava"))
3736 flags |= Q3SURFACEPARM_LAVA;
3737 else if (!strcasecmp(parameter[1], "lightfilter"))
3738 flags |= Q3SURFACEPARM_LIGHTFILTER;
3739 else if (!strcasecmp(parameter[1], "metalsteps"))
3740 flags |= Q3SURFACEPARM_METALSTEPS;
3741 else if (!strcasecmp(parameter[1], "nodamage"))
3742 flags |= Q3SURFACEPARM_NODAMAGE;
3743 else if (!strcasecmp(parameter[1], "nodlight"))
3744 flags |= Q3SURFACEPARM_NODLIGHT;
3745 else if (!strcasecmp(parameter[1], "nodraw"))
3746 flags |= Q3SURFACEPARM_NODRAW;
3747 else if (!strcasecmp(parameter[1], "nodrop"))
3748 flags |= Q3SURFACEPARM_NODROP;
3749 else if (!strcasecmp(parameter[1], "noimpact"))
3750 flags |= Q3SURFACEPARM_NOIMPACT;
3751 else if (!strcasecmp(parameter[1], "nolightmap"))
3752 flags |= Q3SURFACEPARM_NOLIGHTMAP;
3753 else if (!strcasecmp(parameter[1], "nomarks"))
3754 flags |= Q3SURFACEPARM_NOMARKS;
3755 else if (!strcasecmp(parameter[1], "nomipmaps"))
3756 flags |= Q3SURFACEPARM_NOMIPMAPS;
3757 else if (!strcasecmp(parameter[1], "nonsolid"))
3758 flags |= Q3SURFACEPARM_NONSOLID;
3759 else if (!strcasecmp(parameter[1], "origin"))
3760 flags |= Q3SURFACEPARM_ORIGIN;
3761 else if (!strcasecmp(parameter[1], "playerclip"))
3762 flags |= Q3SURFACEPARM_PLAYERCLIP;
3763 else if (!strcasecmp(parameter[1], "sky"))
3764 flags |= Q3SURFACEPARM_SKY;
3765 else if (!strcasecmp(parameter[1], "slick"))
3766 flags |= Q3SURFACEPARM_SLICK;
3767 else if (!strcasecmp(parameter[1], "slime"))
3768 flags |= Q3SURFACEPARM_SLIME;
3769 else if (!strcasecmp(parameter[1], "structural"))
3770 flags |= Q3SURFACEPARM_STRUCTURAL;
3771 else if (!strcasecmp(parameter[1], "trans"))
3772 flags |= Q3SURFACEPARM_TRANS;
3773 else if (!strcasecmp(parameter[1], "water"))
3774 flags |= Q3SURFACEPARM_WATER;
3775 else if (!strcasecmp(parameter[1], "pointlight"))
3776 flags |= Q3SURFACEPARM_POINTLIGHT;
3778 Con_Printf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[i], parameter[1]);
3780 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
3781 strlcpy(sky, parameter[1], sizeof(sky));
3782 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
3784 if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
3785 strlcpy(sky, parameter[1], sizeof(sky));
3787 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
3789 if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
3790 flags2 |= Q3TEXTUREFLAG_TWOSIDED;
3792 else if (!strcasecmp(parameter[0], "nomipmaps"))
3793 flags2 |= Q3TEXTUREFLAG_NOMIPMAPS;
3794 else if (!strcasecmp(parameter[0], "nopicmip"))
3795 flags2 |= Q3TEXTUREFLAG_NOPICMIP;
3796 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
3798 if (!strcasecmp(parameter[1], "autosprite") && numparameters == 2)
3799 flags2 |= Q3TEXTUREFLAG_AUTOSPRITE;
3800 if (!strcasecmp(parameter[1], "autosprite2") && numparameters == 2)
3801 flags2 |= Q3TEXTUREFLAG_AUTOSPRITE2;
3804 // force transparent render path for a number of odd
3805 // shader effects to avoid bogging down the normal
3806 // render path unnecessarily
3807 if (flags2 & (Q3TEXTUREFLAG_ADDITIVE | Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2 | Q3TEXTUREFLAG_ALPHATEST))
3808 flags |= Q3SURFACEPARM_TRANS;
3809 // add shader to list (shadername and flags)
3810 // actually here we just poke into the texture settings
3811 for (j = 0, out = loadmodel->brush.data_textures;j < loadmodel->brush.num_textures;j++, out++)
3813 if (!strcasecmp(out->name, shadername))
3815 out->surfaceparms = flags;
3816 out->textureflags = flags2;
3817 out->basematerialflags = 0;
3818 if (out->surfaceparms & Q3SURFACEPARM_NODRAW)
3819 out->basematerialflags |= MATERIALFLAG_NODRAW;
3820 else if (out->surfaceparms & Q3SURFACEPARM_SKY)
3821 out->basematerialflags |= MATERIALFLAG_SKY;
3822 else if (out->surfaceparms & Q3SURFACEPARM_LAVA)
3823 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_FULLBRIGHT;
3824 else if (out->surfaceparms & Q3SURFACEPARM_SLIME)
3825 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_WATERALPHA;
3826 else if (out->surfaceparms & Q3SURFACEPARM_WATER)
3827 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_WATERALPHA;
3829 out->basematerialflags |= MATERIALFLAG_WALL;
3830 if (out->surfaceparms & Q3SURFACEPARM_TRANS)
3831 out->basematerialflags |= MATERIALFLAG_TRANSPARENT;
3832 if (out->textureflags & Q3TEXTUREFLAG_ADDITIVE)
3833 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_TRANSPARENT;
3834 strlcpy(out->firstpasstexturename, firstpasstexturename, sizeof(out->firstpasstexturename));
3835 if ((flags & Q3SURFACEPARM_SKY) && sky[0])
3837 // quake3 seems to append a _ to the skybox name, so this must do so as well
3838 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", sky);
3845 Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[i], com_token);
3856 for (j = 0, out = loadmodel->brush.data_textures;j < loadmodel->brush.num_textures;j++, out++)
3858 if (out->surfaceparms == -1)
3861 Con_DPrintf("%s: No shader found for texture \"%s\"\n", loadmodel->name, out->name);
3862 out->surfaceparms = 0;
3863 if (out->surfaceflags & Q3SURFACEFLAG_NODRAW)
3864 out->basematerialflags |= MATERIALFLAG_NODRAW;
3865 else if (out->surfaceflags & Q3SURFACEFLAG_SKY)
3866 out->basematerialflags |= MATERIALFLAG_SKY;
3868 out->basematerialflags |= MATERIALFLAG_WALL;
3869 // these are defaults
3870 //if (!strncmp(out->name, "textures/skies/", 15))
3871 // out->surfaceparms |= Q3SURFACEPARM_SKY;
3872 //if (!strcmp(out->name, "caulk") || !strcmp(out->name, "common/caulk") || !strcmp(out->name, "textures/common/caulk")
3873 // || !strcmp(out->name, "nodraw") || !strcmp(out->name, "common/nodraw") || !strcmp(out->name, "textures/common/nodraw"))
3874 // out->surfaceparms |= Q3SURFACEPARM_NODRAW;
3875 //if (R_TextureHasAlpha(out->skin.base))
3876 // out->surfaceparms |= Q3SURFACEPARM_TRANS;
3878 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, false, true))
3879 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, false, true))
3880 Con_Printf("%s: texture loading for shader \"%s\" failed (first layer \"%s\" not found either)\n", loadmodel->name, out->name, out->firstpasstexturename);
3882 out->basematerialflags |= (MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT);
3884 out->currentframe = out;
3887 Con_DPrintf("%s: %i textures missing shaders\n", loadmodel->name, c);
3890 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
3896 in = (void *)(mod_base + l->fileofs);
3897 if (l->filelen % sizeof(*in))
3898 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
3899 count = l->filelen / sizeof(*in);
3900 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3902 loadmodel->brush.data_planes = out;
3903 loadmodel->brush.num_planes = count;
3905 for (i = 0;i < count;i++, in++, out++)
3907 out->normal[0] = LittleLong(in->normal[0]);
3908 out->normal[1] = LittleLong(in->normal[1]);
3909 out->normal[2] = LittleLong(in->normal[2]);
3910 out->dist = LittleLong(in->dist);
3915 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
3918 q3mbrushside_t *out;
3921 in = (void *)(mod_base + l->fileofs);
3922 if (l->filelen % sizeof(*in))
3923 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
3924 count = l->filelen / sizeof(*in);
3925 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3927 loadmodel->brush.data_brushsides = out;
3928 loadmodel->brush.num_brushsides = count;
3930 for (i = 0;i < count;i++, in++, out++)
3932 n = LittleLong(in->planeindex);
3933 if (n < 0 || n >= loadmodel->brush.num_planes)
3934 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)\n", n, loadmodel->brush.num_planes);
3935 out->plane = loadmodel->brush.data_planes + n;
3936 n = LittleLong(in->textureindex);
3937 if (n < 0 || n >= loadmodel->brush.num_textures)
3938 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)\n", n, loadmodel->brush.num_textures);
3939 out->texture = loadmodel->brush.data_textures + n;
3943 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
3947 int i, j, n, c, count, maxplanes;
3950 in = (void *)(mod_base + l->fileofs);
3951 if (l->filelen % sizeof(*in))
3952 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
3953 count = l->filelen / sizeof(*in);
3954 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3956 loadmodel->brush.data_brushes = out;
3957 loadmodel->brush.num_brushes = count;
3962 for (i = 0;i < count;i++, in++, out++)
3964 n = LittleLong(in->firstbrushside);
3965 c = LittleLong(in->numbrushsides);
3966 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
3967 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)\n", n, n + c, loadmodel->brush.num_brushsides);
3968 out->firstbrushside = loadmodel->brush.data_brushsides + n;
3969 out->numbrushsides = c;
3970 n = LittleLong(in->textureindex);
3971 if (n < 0 || n >= loadmodel->brush.num_textures)
3972 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)\n", n, loadmodel->brush.num_textures);
3973 out->texture = loadmodel->brush.data_textures + n;
3975 // make a list of mplane_t structs to construct a colbrush from
3976 if (maxplanes < out->numbrushsides)
3978 maxplanes = out->numbrushsides;
3981 planes = Mem_Alloc(tempmempool, sizeof(mplane_t) * maxplanes);
3983 for (j = 0;j < out->numbrushsides;j++)
3985 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
3986 planes[j].dist = out->firstbrushside[j].plane->dist;
3988 // make the colbrush from the planes
3989 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents);
3995 static void Mod_Q3BSP_LoadEffects(lump_t *l)
4001 in = (void *)(mod_base + l->fileofs);
4002 if (l->filelen % sizeof(*in))
4003 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
4004 count = l->filelen / sizeof(*in);
4005 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4007 loadmodel->brushq3.data_effects = out;
4008 loadmodel->brushq3.num_effects = count;
4010 for (i = 0;i < count;i++, in++, out++)
4012 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
4013 n = LittleLong(in->brushindex);
4014 if (n < 0 || n >= loadmodel->brush.num_brushes)
4015 Host_Error("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes)\n", n, loadmodel->brush.num_brushes);
4016 out->brushindex = n;
4017 out->unknown = LittleLong(in->unknown);
4021 static void Mod_Q3BSP_LoadVertices(lump_t *l)
4026 in = (void *)(mod_base + l->fileofs);
4027 if (l->filelen % sizeof(*in))
4028 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
4029 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
4030 loadmodel->brushq3.data_vertex3f = Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 2 + 2 + 4)));
4031 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_vertex3f + count * 3;
4032 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
4033 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
4035 for (i = 0;i < count;i++, in++)
4037 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
4038 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
4039 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
4040 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
4041 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
4042 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
4043 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
4044 // svector/tvector are calculated later in face loading
4045 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
4046 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
4047 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
4048 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
4052 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
4058 in = (void *)(mod_base + l->fileofs);
4059 if (l->filelen % sizeof(int[3]))
4060 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
4061 count = l->filelen / sizeof(*in);
4062 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4064 loadmodel->brushq3.num_triangles = count / 3;
4065 loadmodel->brushq3.data_element3i = out;
4067 for (i = 0;i < count;i++, in++, out++)
4069 *out = LittleLong(*in);
4070 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
4072 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
4078 static void Mod_Q3BSP_LoadLightmaps(lump_t *l)
4086 in = (void *)(mod_base + l->fileofs);
4087 if (l->filelen % sizeof(*in))
4088 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
4089 count = l->filelen / sizeof(*in);
4090 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4092 loadmodel->brushq3.data_lightmaps = out;
4093 loadmodel->brushq3.num_lightmaps = count;
4095 for (i = 0;i < count;i++, in++, out++)
4096 *out = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", i), 128, 128, in->rgb, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
4099 static void Mod_Q3BSP_LoadFaces(lump_t *l)
4101 q3dface_t *in, *oldin;
4102 msurface_t *out, *oldout;
4103 int i, oldi, j, n, count, invalidelements, patchsize[2], finalwidth, finalheight, xtess, ytess, finalvertices, finaltriangles, firstvertex, firstelement, type, oldnumtriangles, oldnumtriangles2, meshnum, meshvertices, meshtriangles, numvertices, numtriangles;
4104 //int *originalelement3i;
4105 //int *originalneighbor3i;
4106 float *originalvertex3f;
4107 //float *originalsvector3f;
4108 //float *originaltvector3f;
4109 //float *originalnormal3f;
4110 float *originalcolor4f;
4111 float *originaltexcoordtexture2f;
4112 float *originaltexcoordlightmap2f;
4114 surfmesh_t *mesh, *tempmeshlist[1024];
4116 in = (void *)(mod_base + l->fileofs);
4117 if (l->filelen % sizeof(*in))
4118 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
4119 count = l->filelen / sizeof(*in);
4120 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4122 loadmodel->brush.data_surfaces = out;
4123 loadmodel->brush.num_surfaces = count;
4126 for (meshnum = 0;i < count;meshnum++)
4133 for (;i < count;i++, in++, out++)
4135 // check face type first
4136 type = LittleLong(in->type);
4137 if (type != Q3FACETYPE_POLYGON
4138 && type != Q3FACETYPE_PATCH
4139 && type != Q3FACETYPE_MESH
4140 && type != Q3FACETYPE_FLARE)
4142 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
4146 n = LittleLong(in->textureindex);
4147 if (n < 0 || n >= loadmodel->brush.num_textures)
4149 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->brush.num_textures);
4152 out->texture = loadmodel->brush.data_textures + n;
4153 n = LittleLong(in->effectindex);
4154 if (n < -1 || n >= loadmodel->brushq3.num_effects)
4156 if (developer.integer >= 2)
4157 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
4163 out->effect = loadmodel->brushq3.data_effects + n;
4164 n = LittleLong(in->lightmapindex);
4165 if (n >= loadmodel->brushq3.num_lightmaps)
4167 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_lightmaps);
4173 out->lightmaptexture = NULL;
4175 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n];
4177 firstvertex = LittleLong(in->firstvertex);
4178 numvertices = LittleLong(in->numvertices);
4179 firstelement = LittleLong(in->firstelement);
4180 numtriangles = LittleLong(in->numelements) / 3;
4181 if (numtriangles * 3 != LittleLong(in->numelements))
4183 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));
4186 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
4188 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid vertex range %i : %i (%i vertices)\n", i, out->texture->name, firstvertex, firstvertex + numvertices, loadmodel->brushq3.num_vertices);
4191 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
4193 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid element range %i : %i (%i elements)\n", i, out->texture->name, firstelement, firstelement + numtriangles * 3, loadmodel->brushq3.num_triangles * 3);
4198 case Q3FACETYPE_POLYGON:
4199 case Q3FACETYPE_MESH:
4200 // no processing necessary
4202 case Q3FACETYPE_PATCH:
4203 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4204 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4205 if (numvertices != (patchsize[0] * patchsize[1]) || 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))
4207 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
4210 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4211 // convert patch to Q3FACETYPE_MESH
4212 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4213 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4214 // bound to user settings
4215 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4216 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4217 // bound to sanity settings
4218 xtess = bound(1, xtess, 1024);
4219 ytess = bound(1, ytess, 1024);
4220 // bound to user limit on vertices
4221 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4228 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4229 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4230 numvertices = finalwidth * finalheight;
4231 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4233 case Q3FACETYPE_FLARE:
4234 if (developer.integer >= 2)
4235 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
4239 out->mesh.num_vertices = numvertices;
4240 out->mesh.num_triangles = numtriangles;
4241 if (meshvertices + out->mesh.num_vertices > 65536)
4243 meshvertices += out->mesh.num_vertices;
4244 meshtriangles += out->mesh.num_triangles;
4250 mesh = tempmeshlist[meshnum] = Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, 0, 0, false, false, true);
4253 for (;i < count && meshvertices + out->mesh.num_vertices <= mesh->num_vertices;i++, in++, out++)
4255 if (out->mesh.num_vertices < 3 || out->mesh.num_triangles < 1)
4258 type = LittleLong(in->type);
4259 firstvertex = LittleLong(in->firstvertex);
4260 firstelement = LittleLong(in->firstelement);
4261 out->mesh.data_vertex3f = mesh->data_vertex3f + meshvertices * 3;
4262 out->mesh.data_svector3f = mesh->data_svector3f + meshvertices * 3;
4263 out->mesh.data_tvector3f = mesh->data_tvector3f + meshvertices * 3;
4264 out->mesh.data_normal3f = mesh->data_normal3f + meshvertices * 3;
4265 out->mesh.data_texcoordtexture2f = mesh->data_texcoordtexture2f + meshvertices * 2;
4266 out->mesh.data_texcoordlightmap2f = mesh->data_texcoordlightmap2f + meshvertices * 2;
4267 out->mesh.data_lightmapcolor4f = mesh->data_lightmapcolor4f + meshvertices * 4;
4268 out->mesh.data_element3i = mesh->data_element3i + meshtriangles * 3;
4269 out->mesh.data_neighbor3i = mesh->data_neighbor3i + meshtriangles * 3;
4272 case Q3FACETYPE_POLYGON:
4273 case Q3FACETYPE_MESH:
4274 // no processing necessary
4275 for (j = 0;j < out->mesh.num_vertices;j++)
4277 out->mesh.data_vertex3f[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
4278 out->mesh.data_vertex3f[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
4279 out->mesh.data_vertex3f[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
4280 out->mesh.data_texcoordtexture2f[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
4281 out->mesh.data_texcoordtexture2f[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
4282 out->mesh.data_texcoordlightmap2f[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
4283 out->mesh.data_texcoordlightmap2f[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
4284 out->mesh.data_lightmapcolor4f[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
4285 out->mesh.data_lightmapcolor4f[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
4286 out->mesh.data_lightmapcolor4f[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
4287 out->mesh.data_lightmapcolor4f[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
4289 for (j = 0;j < out->mesh.num_triangles*3;j++)
4290 out->mesh.data_element3i[j] = loadmodel->brushq3.data_element3i[firstelement + j];
4292 case Q3FACETYPE_PATCH:
4293 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4294 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4295 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4296 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
4297 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
4298 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
4299 // convert patch to Q3FACETYPE_MESH
4300 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4301 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4302 // bound to user settings
4303 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4304 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4305 // bound to sanity settings
4306 xtess = bound(1, xtess, 1024);
4307 ytess = bound(1, ytess, 1024);
4308 // bound to user limit on vertices
4309 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4316 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4317 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4318 finalvertices = finalwidth * finalheight;
4319 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4320 type = Q3FACETYPE_MESH;
4321 // generate geometry
4322 // (note: normals are skipped because they get recalculated)
4323 Q3PatchTesselateFloat(3, sizeof(float[3]), out->mesh.data_vertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4324 Q3PatchTesselateFloat(2, sizeof(float[2]), out->mesh.data_texcoordtexture2f, patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
4325 Q3PatchTesselateFloat(2, sizeof(float[2]), out->mesh.data_texcoordlightmap2f, patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
4326 Q3PatchTesselateFloat(4, sizeof(float[4]), out->mesh.data_lightmapcolor4f, patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
4327 Q3PatchTriangleElements(out->mesh.data_element3i, finalwidth, finalheight);
4328 out->mesh.num_triangles = Mod_RemoveDegenerateTriangles(out->mesh.num_triangles, out->mesh.data_element3i, out->mesh.data_element3i, out->mesh.data_vertex3f);
4329 if (developer.integer >= 2)
4331 if (out->mesh.num_triangles < finaltriangles)
4332 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);
4334 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);
4336 // q3map does not put in collision brushes for curves... ugh
4337 // build the lower quality collision geometry
4338 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4339 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4340 // bound to user settings
4341 xtess = bound(r_subdivisions_collision_mintess.integer, xtess, r_subdivisions_collision_maxtess.integer);
4342 ytess = bound(r_subdivisions_collision_mintess.integer, ytess, r_subdivisions_collision_maxtess.integer);
4343 // bound to sanity settings
4344 xtess = bound(1, xtess, 1024);
4345 ytess = bound(1, ytess, 1024);
4346 // bound to user limit on vertices
4347 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_collision_maxvertices.integer, 262144))
4354 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4355 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4356 finalvertices = finalwidth * finalheight;
4357 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4359 out->mesh.data_collisionvertex3f = Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
4360 out->mesh.data_collisionelement3i = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
4361 out->mesh.num_collisionvertices = finalvertices;
4362 out->mesh.num_collisiontriangles = finaltriangles;
4363 Q3PatchTesselateFloat(3, sizeof(float[3]), out->mesh.data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4364 Q3PatchTriangleElements(out->mesh.data_collisionelement3i, finalwidth, finalheight);
4366 //Mod_SnapVertices(3, out->mesh.num_vertices, out->mesh.data_vertex3f, 0.25);
4367 Mod_SnapVertices(3, out->mesh.num_collisionvertices, out->mesh.data_collisionvertex3f, 1);
4369 oldnumtriangles = out->mesh.num_triangles;
4370 oldnumtriangles2 = out->mesh.num_collisiontriangles;
4371 out->mesh.num_collisiontriangles = Mod_RemoveDegenerateTriangles(out->mesh.num_collisiontriangles, out->mesh.data_collisionelement3i, out->mesh.data_collisionelement3i, out->mesh.data_collisionvertex3f);
4372 if (developer.integer)
4373 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);
4378 meshvertices += out->mesh.num_vertices;
4379 meshtriangles += out->mesh.num_triangles;
4380 for (j = 0, invalidelements = 0;j < out->mesh.num_triangles * 3;j++)
4381 if (out->mesh.data_element3i[j] < 0 || out->mesh.data_element3i[j] >= out->mesh.num_vertices)
4383 if (invalidelements)
4385 Con_Printf("Mod_Q3BSP_LoadFaces: Warning: face #%i has %i invalid elements, type = %i, texture->name = \"%s\", texture->surfaceflags = %i, firstvertex = %i, numvertices = %i, firstelement = %i, numelements = %i, elements list:\n", i, invalidelements, type, out->texture->name, out->texture->surfaceflags, firstvertex, out->mesh.num_vertices, firstelement, out->mesh.num_triangles * 3);
4386 for (j = 0;j < out->mesh.num_triangles * 3;j++)
4388 Con_Printf(" %i", out->mesh.data_element3i[j]);
4389 if (out->mesh.data_element3i[j] < 0 || out->mesh.data_element3i[j] >= out->mesh.num_vertices)
4390 out->mesh.data_element3i[j] = 0;
4394 // for shadow volumes
4395 Mod_BuildTriangleNeighbors(out->mesh.data_neighbor3i, out->mesh.data_element3i, out->mesh.num_triangles);
4396 // for per pixel lighting
4397 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);
4398 // calculate a bounding box
4399 VectorClear(out->mins);
4400 VectorClear(out->maxs);
4401 if (out->mesh.num_vertices)
4403 VectorCopy(out->mesh.data_vertex3f, out->mins);
4404 VectorCopy(out->mesh.data_vertex3f, out->maxs);
4405 for (j = 1, v = out->mesh.data_vertex3f + 3;j < out->mesh.num_vertices;j++, v += 3)
4407 out->mins[0] = min(out->mins[0], v[0]);
4408 out->maxs[0] = max(out->maxs[0], v[0]);
4409 out->mins[1] = min(out->mins[1], v[1]);
4410 out->maxs[1] = max(out->maxs[1], v[1]);
4411 out->mins[2] = min(out->mins[2], v[2]);
4412 out->maxs[2] = max(out->maxs[2], v[2]);
4414 out->mins[0] -= 1.0f;
4415 out->mins[1] -= 1.0f;
4416 out->mins[2] -= 1.0f;
4417 out->maxs[0] += 1.0f;
4418 out->maxs[1] += 1.0f;
4419 out->maxs[2] += 1.0f;
4421 // set lightmap styles for consistency with q1bsp
4423 out->styles[1] = 255;
4424 out->styles[2] = 255;
4425 out->styles[3] = 255;
4429 // now store the completed list of meshes
4430 loadmodel->nummeshes = meshnum;
4431 if (loadmodel->nummeshes)
4433 loadmodel->meshlist = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t *) * loadmodel->nummeshes);
4434 memcpy(loadmodel->meshlist, tempmeshlist, sizeof(surfmesh_t *) * loadmodel->nummeshes);
4437 // free the no longer needed vertex data
4438 loadmodel->brushq3.num_vertices = 0;
4439 Mem_Free(loadmodel->brushq3.data_vertex3f);
4440 loadmodel->brushq3.data_vertex3f = NULL;
4441 loadmodel->brushq3.data_texcoordtexture2f = NULL;
4442 loadmodel->brushq3.data_texcoordlightmap2f = NULL;
4443 loadmodel->brushq3.data_color4f = NULL;
4444 // free the no longer needed triangle data
4445 loadmodel->brushq3.num_triangles = 0;
4446 Mem_Free(loadmodel->brushq3.data_element3i);
4447 loadmodel->brushq3.data_element3i = NULL;
4450 static void Mod_Q3BSP_LoadModels(lump_t *l)
4454 int i, j, n, c, count;
4456 in = (void *)(mod_base + l->fileofs);
4457 if (l->filelen % sizeof(*in))
4458 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
4459 count = l->filelen / sizeof(*in);
4460 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4462 loadmodel->brushq3.data_models = out;
4463 loadmodel->brushq3.num_models = count;
4465 for (i = 0;i < count;i++, in++, out++)
4467 for (j = 0;j < 3;j++)
4469 out->mins[j] = LittleFloat(in->mins[j]);
4470 out->maxs[j] = LittleFloat(in->maxs[j]);
4472 n = LittleLong(in->firstface);
4473 c = LittleLong(in->numfaces);
4474 if (n < 0 || n + c > loadmodel->brush.num_surfaces)
4475 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)\n", n, n + c, loadmodel->brush.num_surfaces);
4478 n = LittleLong(in->firstbrush);
4479 c = LittleLong(in->numbrushes);
4480 if (n < 0 || n + c > loadmodel->brush.num_brushes)
4481 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)\n", n, n + c, loadmodel->brush.num_brushes);
4482 out->firstbrush = n;
4483 out->numbrushes = c;
4487 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
4493 in = (void *)(mod_base + l->fileofs);
4494 if (l->filelen % sizeof(*in))
4495 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
4496 count = l->filelen / sizeof(*in);
4497 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4499 loadmodel->brush.data_leafbrushes = out;
4500 loadmodel->brush.num_leafbrushes = count;
4502 for (i = 0;i < count;i++, in++, out++)
4504 n = LittleLong(*in);
4505 if (n < 0 || n >= loadmodel->brush.num_brushes)
4506 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)\n", n, loadmodel->brush.num_brushes);
4511 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
4517 in = (void *)(mod_base + l->fileofs);
4518 if (l->filelen % sizeof(*in))
4519 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
4520 count = l->filelen / sizeof(*in);
4521 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4523 loadmodel->brush.data_leafsurfaces = out;
4524 loadmodel->brush.num_leafsurfaces = count;
4526 for (i = 0;i < count;i++, in++, out++)
4528 n = LittleLong(*in);
4529 if (n < 0 || n >= loadmodel->brush.num_surfaces)
4530 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)\n", n, loadmodel->brush.num_surfaces);
4535 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
4539 int i, j, n, c, count;
4541 in = (void *)(mod_base + l->fileofs);
4542 if (l->filelen % sizeof(*in))
4543 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
4544 count = l->filelen / sizeof(*in);
4545 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4547 loadmodel->brush.data_leafs = out;
4548 loadmodel->brush.num_leafs = count;
4550 for (i = 0;i < count;i++, in++, out++)
4554 out->clusterindex = LittleLong(in->clusterindex);
4555 out->areaindex = LittleLong(in->areaindex);
4556 for (j = 0;j < 3;j++)
4558 // yes the mins/maxs are ints
4559 out->mins[j] = LittleLong(in->mins[j]) - 1;
4560 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
4562 n = LittleLong(in->firstleafface);
4563 c = LittleLong(in->numleaffaces);
4564 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
4565 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)\n", n, n + c, loadmodel->brush.num_leafsurfaces);
4566 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
4567 out->numleafsurfaces = c;
4568 n = LittleLong(in->firstleafbrush);
4569 c = LittleLong(in->numleafbrushes);
4570 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
4571 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)\n", n, n + c, loadmodel->brush.num_leafbrushes);
4572 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
4573 out->numleafbrushes = c;
4577 static void Mod_Q3BSP_LoadNodes(lump_t *l)
4583 in = (void *)(mod_base + l->fileofs);
4584 if (l->filelen % sizeof(*in))
4585 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
4586 count = l->filelen / sizeof(*in);
4587 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4589 loadmodel->brush.data_nodes = out;
4590 loadmodel->brush.num_nodes = count;
4592 for (i = 0;i < count;i++, in++, out++)
4595 n = LittleLong(in->planeindex);
4596 if (n < 0 || n >= loadmodel->brush.num_planes)
4597 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)\n", n, loadmodel->brush.num_planes);
4598 out->plane = loadmodel->brush.data_planes + n;
4599 for (j = 0;j < 2;j++)
4601 n = LittleLong(in->childrenindex[j]);
4604 if (n >= loadmodel->brush.num_nodes)
4605 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)\n", n, loadmodel->brush.num_nodes);
4606 out->children[j] = loadmodel->brush.data_nodes + n;
4611 if (n >= loadmodel->brush.num_leafs)
4612 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)\n", n, loadmodel->brush.num_leafs);
4613 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
4616 for (j = 0;j < 3;j++)
4618 // yes the mins/maxs are ints
4619 out->mins[j] = LittleLong(in->mins[j]) - 1;
4620 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
4624 // set the parent pointers
4625 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
4628 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
4631 q3dlightgrid_t *out;
4634 in = (void *)(mod_base + l->fileofs);
4635 if (l->filelen % sizeof(*in))
4636 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
4637 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
4638 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
4639 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
4640 loadmodel->brushq3.num_lightgrid_imins[0] = ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
4641 loadmodel->brushq3.num_lightgrid_imins[1] = ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
4642 loadmodel->brushq3.num_lightgrid_imins[2] = ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
4643 loadmodel->brushq3.num_lightgrid_imaxs[0] = floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
4644 loadmodel->brushq3.num_lightgrid_imaxs[1] = floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
4645 loadmodel->brushq3.num_lightgrid_imaxs[2] = floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
4646 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
4647 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
4648 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
4649 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
4652 if (l->filelen < count * (int)sizeof(*in))
4653 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]);
4654 if (l->filelen != count * (int)sizeof(*in))
4655 Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", count * sizeof(*in), l->filelen);
4658 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4659 loadmodel->brushq3.data_lightgrid = out;
4660 loadmodel->brushq3.num_lightgrid = count;
4662 // no swapping or validation necessary
4664 memcpy(out, in, count * (int)sizeof(*out));
4667 // no data, fill with white
4669 for (i = 0;i < count;i++)
4671 out[i].ambientrgb[0] = 128;
4672 out[i].ambientrgb[1] = 128;
4673 out[i].ambientrgb[2] = 128;
4674 out[i].diffusergb[0] = 0;
4675 out[i].diffusergb[1] = 0;
4676 out[i].diffusergb[2] = 0;
4677 out[i].diffusepitch = 0;
4678 out[i].diffuseyaw = 0;
4682 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]);
4683 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]);
4686 static void Mod_Q3BSP_LoadPVS(lump_t *l)
4691 if (l->filelen == 0)
4694 // unvised maps often have cluster indices even without pvs, so check
4695 // leafs to find real number of clusters
4696 loadmodel->brush.num_pvsclusters = 1;
4697 for (i = 0;i < loadmodel->brush.num_leafs;i++)
4698 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
4701 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
4702 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
4703 loadmodel->brush.data_pvsclusters = Mem_Alloc(loadmodel->mempool, totalchains);
4704 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
4708 in = (void *)(mod_base + l->fileofs);
4710 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
4712 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
4713 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
4714 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
4715 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8\n", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
4716 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
4717 if (l->filelen < totalchains + (int)sizeof(*in))
4718 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);
4720 loadmodel->brush.data_pvsclusters = Mem_Alloc(loadmodel->mempool, totalchains);
4721 memcpy(loadmodel->brush.data_pvsclusters, (qbyte *)(in + 1), totalchains);
4724 static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
4726 int i, j, k, index[3];
4727 float transformed[3], blend1, blend2, blend, yaw, pitch, sinpitch;
4728 q3dlightgrid_t *a, *s;
4729 // FIXME: write this
4730 if (!model->brushq3.num_lightgrid)
4732 ambientcolor[0] = 1;
4733 ambientcolor[1] = 1;
4734 ambientcolor[2] = 1;
4737 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
4738 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
4739 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
4740 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
4741 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
4742 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
4743 index[0] = (int)floor(transformed[0]);
4744 index[1] = (int)floor(transformed[1]);
4745 index[2] = (int)floor(transformed[2]);
4746 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
4747 // now lerp the values
4748 VectorClear(diffusenormal);
4749 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
4750 for (k = 0;k < 2;k++)
4752 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
4753 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
4755 for (j = 0;j < 2;j++)
4757 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
4758 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
4760 for (i = 0;i < 2;i++)
4762 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0])));
4763 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
4765 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
4766 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
4767 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
4768 pitch = s->diffusepitch * M_PI / 128;
4769 yaw = s->diffuseyaw * M_PI / 128;
4770 sinpitch = sin(pitch);
4771 diffusenormal[0] += blend * (cos(yaw) * sinpitch);
4772 diffusenormal[1] += blend * (sin(yaw) * sinpitch);
4773 diffusenormal[2] += blend * (cos(pitch));
4774 //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)));
4778 VectorNormalize(diffusenormal);
4779 //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]);
4782 static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t point, int markframe)
4787 // find which leaf the point is in
4789 node = node->children[DotProduct(point, node->plane->normal) < node->plane->dist];
4790 // point trace the brushes
4791 leaf = (mleaf_t *)node;
4792 for (i = 0;i < leaf->numleafbrushes;i++)
4794 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
4795 if (brush && brush->markframe != markframe && BoxesOverlap(point, point, brush->mins, brush->maxs))
4797 brush->markframe = markframe;
4798 Collision_TracePointBrushFloat(trace, point, brush);
4801 // can't do point traces on curves (they have no thickness)
4804 static void Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_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)
4806 int i, startside, endside;
4807 float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
4809 msurface_t *surface;
4811 if (startfrac > trace->realfraction)
4813 // note: all line fragments past first impact fraction are ignored
4814 if (VectorCompare(start, end))
4816 // find which leaf the point is in
4818 node = node->children[DotProduct(start, node->plane->normal) < node->plane->dist];
4822 // find which nodes the line is in and recurse for them
4825 // recurse down node sides
4826 dist1 = PlaneDiff(start, node->plane);
4827 dist2 = PlaneDiff(end, node->plane);
4828 startside = dist1 < 0;
4829 endside = dist2 < 0;
4830 if (startside == endside)
4832 // most of the time the line fragment is on one side of the plane
4833 node = node->children[startside];
4837 // line crosses node plane, split the line
4838 midfrac = dist1 / (dist1 - dist2);
4839 VectorLerp(start, midfrac, end, mid);
4840 // take the near side first
4841 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
4842 if (midfrac <= trace->realfraction)
4843 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
4849 nodesegmentmins[0] = min(start[0], end[0]);
4850 nodesegmentmins[1] = min(start[1], end[1]);
4851 nodesegmentmins[2] = min(start[2], end[2]);
4852 nodesegmentmaxs[0] = max(start[0], end[0]);
4853 nodesegmentmaxs[1] = max(start[1], end[1]);
4854 nodesegmentmaxs[2] = max(start[2], end[2]);
4855 // line trace the brushes
4856 leaf = (mleaf_t *)node;
4857 for (i = 0;i < leaf->numleafbrushes;i++)
4859 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
4860 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
4862 brush->markframe = markframe;
4863 Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
4864 if (startfrac > trace->realfraction)
4868 // can't do point traces on curves (they have no thickness)
4869 if (mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
4871 // line trace the curves
4872 for (i = 0;i < leaf->numleafsurfaces;i++)
4874 surface = model->brush.data_surfaces + leaf->firstleafsurface[i];
4875 if (surface->mesh.num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
4877 surface->collisionmarkframe = markframe;
4878 Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->mesh.num_collisiontriangles, surface->mesh.data_collisionelement3i, surface->mesh.data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
4879 if (startfrac > trace->realfraction)
4886 static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int markframe, const vec3_t segmentmins, const vec3_t segmentmaxs)
4890 float nodesegmentmins[3], nodesegmentmaxs[3];
4893 msurface_t *surface;
4895 // find which nodes the line is in and recurse for them
4898 // recurse down node sides
4899 int startside, endside;
4900 float dist1near, dist1far, dist2near, dist2far;
4901 BoxPlaneCornerDistances(thisbrush_start->mins, thisbrush_start->maxs, node->plane, &dist1near, &dist1far);
4902 BoxPlaneCornerDistances(thisbrush_end->mins, thisbrush_end->maxs, node->plane, &dist2near, &dist2far);
4903 startside = dist1near < 0;
4904 startside = dist1near < 0 ? (dist1far < 0 ? 1 : 2) : (dist1far < 0 ? 2 : 0);
4905 endside = dist2near < 0 ? (dist2far < 0 ? 1 : 2) : (dist2far < 0 ? 2 : 0);
4906 if (startside == 2 || endside == 2)
4908 // brushes cross plane
4909 // do not clip anything, just take both sides
4910 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
4911 node = node->children[1];
4918 node = node->children[0];
4923 //midf0 = dist1near / (dist1near - dist2near);
4924 //midf1 = dist1far / (dist1far - dist2far);
4925 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
4926 node = node->children[1];
4934 //midf0 = dist1near / (dist1near - dist2near);
4935 //midf1 = dist1far / (dist1far - dist2far);
4936 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
4937 node = node->children[1];
4942 node = node->children[1];
4947 if (dist1near < 0 && dist2near < 0 && dist1far < 0 && dist2far < 0){node = node->children[1];continue;}
4948 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;}
4949 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;}
4950 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;}
4951 if (dist1near < 0 && dist2near >= 0 && dist1far < 0 && dist2far < 0){node = node->children[1];continue;}
4952 if (dist1near < 0 && dist2near >= 0 && dist1far < 0 && dist2far >= 0){}
4953 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;}
4954 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;}
4955 if (dist1near >= 0 && dist2near < 0 && dist1far < 0 && dist2far < 0){node = node->children[1];continue;}
4956 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;}
4957 if (dist1near >= 0 && dist2near < 0 && dist1far >= 0 && dist2far < 0){}
4958 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;}
4959 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;}
4960 if (dist1near >= 0 && dist2near >= 0 && dist1far < 0 && dist2far >= 0){node = node->children[0];continue;}
4961 if (dist1near >= 0 && dist2near >= 0 && dist1far >= 0 && dist2far < 0){node = node->children[0];continue;}
4962 if (dist1near >= 0 && dist2near >= 0 && dist1far >= 0 && dist2far >= 0){node = node->children[0];continue;}
4964 if (dist2near < 0) // d1n<0 && d2n<0
4966 if (dist2near < 0) // d1n<0 && d2n<0
4968 if (dist2near < 0) // d1n<0 && d2n<0
4971 else // d1n<0 && d2n>0
4975 else // d1n<0 && d2n>0
4977 if (dist2near < 0) // d1n<0 && d2n<0
4980 else // d1n<0 && d2n>0
4985 else // d1n<0 && d2n>0
4991 if (dist2near < 0) // d1n>0 && d2n<0
4994 else // d1n>0 && d2n>0
4998 if (dist1near < 0 == dist1far < 0 == dist2near < 0 == dist2far < 0)
5000 node = node->children[startside];
5003 if (dist1near < dist2near)
5008 node = node->children[0];
5013 node = node->children[1];
5016 // dist1near < 0 && dist2far >= 0
5022 startside = dist1near < 0 ? (dist1far < 0 ? 1 : 2) : (dist1far < 0 ? 2 : 0);
5023 endside = dist2near < 0 ? (dist2far < 0 ? 1 : 2) : (dist2far < 0 ? 2 : 0);
5024 if (startside == 2 || endside == 2)
5026 // brushes cross plane
5027 // do not clip anything, just take both sides
5028 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5029 node = node->children[1];
5031 else if (startside == endside)
5032 node = node->children[startside];
5033 else if (startside == 0) // endside = 1 (start infront, end behind)
5036 else // startside == 1 endside = 0 (start behind, end infront)
5042 node = node->children[startside];
5045 // start and end brush cross plane
5051 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5052 node = node->children[1];
5053 else if (dist1near < 0 && dist1far < 0 && dist2near >= 0 && dist2far >= 0)
5054 else if (dist1near >= 0 && dist1far >= 0 && dist2near < 0 && dist2far < 0)
5055 else if (dist1near >= 0 && dist1far >= 0 && dist2near >= 0 && dist2far >= 0)
5056 node = node->children[0];
5058 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5059 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5060 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5061 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5062 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5065 else if (dist1near >= 0 && dist1far >= 0)
5068 else // mixed (lying on plane)
5072 if (dist2near < 0 && dist2far < 0)
5076 node = node->children[1];
5078 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5079 node = node->children[0];
5080 else if (dist1near >= 0 && dist1far >= 0 && dist2near >= 0 && dist2far >= 0)
5081 node = node->children[1];
5085 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5086 node = node->children[1];
5088 sides = dist1near || dist1near < 0 | dist1far < 0 | dist2near < 0 | dist
5089 startside = dist1 < 0;
5090 endside = dist2 < 0;
5091 if (startside == endside)
5093 // most of the time the line fragment is on one side of the plane
5094 node = node->children[startside];
5098 // line crosses node plane, split the line
5099 midfrac = dist1 / (dist1 - dist2);
5100 VectorLerp(start, midfrac, end, mid);
5101 // take the near side first
5102 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5103 if (midfrac <= trace->fraction)
5104 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5112 nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
5113 nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
5114 nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
5115 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
5116 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
5117 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
5118 if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
5122 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5123 node = node->children[1];
5126 // FIXME: could be made faster by copying TraceLine code and making it use
5127 // box plane distances... (variant on the BoxOnPlaneSide code)
5130 nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
5131 nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
5132 nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
5133 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
5134 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
5135 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
5136 if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
5140 if (mod_q3bsp_debugtracebrush.integer == 2)
5142 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5143 node = node->children[1];
5146 else if (mod_q3bsp_debugtracebrush.integer == 1)
5148 // recurse down node sides
5149 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5152 // segment box crosses plane
5153 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5154 node = node->children[1];
5157 // take whichever side the segment box is on
5158 node = node->children[sides - 1];
5163 // recurse down node sides
5164 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5167 // segment box crosses plane
5168 // now check start and end brush boxes to handle a lot of 'diagonal' cases more efficiently...
5169 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, node->plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, node->plane);
5172 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5173 node = node->children[1];
5177 // take whichever side the segment box is on
5178 node = node->children[sides - 1];
5184 // FIXME: could be made faster by copying TraceLine code and making it use
5185 // box plane distances... (variant on the BoxOnPlaneSide code)
5188 nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
5189 nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
5190 nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
5191 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
5192 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
5193 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
5194 if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
5198 if (mod_q3bsp_debugtracebrush.integer == 2)
5200 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5201 node = node->children[1];
5203 else if (mod_q3bsp_debugtracebrush.integer == 1)
5205 // recurse down node sides
5206 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5209 // segment box crosses plane
5210 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5211 node = node->children[1];
5215 // take whichever side the segment box is on
5216 node = node->children[sides - 1];
5221 // recurse down node sides
5222 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5225 // segment box crosses plane
5226 // now check start and end brush boxes to handle a lot of 'diagonal' cases more efficiently...
5227 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, node->plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, node->plane);
5230 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5234 // take whichever side the segment box is on
5235 node = node->children[sides - 1];
5240 leaf = (mleaf_t *)node;
5241 for (i = 0;i < leaf->numleafbrushes;i++)
5243 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5244 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5246 brush->markframe = markframe;
5247 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
5250 if (mod_q3bsp_curves_collisions.integer)
5252 for (i = 0;i < leaf->numleafsurfaces;i++)
5254 surface = model->brush.data_surfaces + leaf->firstleafsurface[i];
5255 if (surface->mesh.num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5257 surface->collisionmarkframe = markframe;
5258 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->mesh.num_collisiontriangles, surface->mesh.data_collisionelement3i, surface->mesh.data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
5264 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)
5267 float segmentmins[3], segmentmaxs[3];
5268 colbrushf_t *thisbrush_start, *thisbrush_end;
5269 matrix4x4_t startmatrix, endmatrix;
5270 static int markframe = 0;
5271 msurface_t *surface;
5273 memset(trace, 0, sizeof(*trace));
5274 trace->fraction = 1;
5275 trace->realfraction = 1;
5276 trace->hitsupercontentsmask = hitsupercontentsmask;
5277 Matrix4x4_CreateIdentity(&startmatrix);
5278 Matrix4x4_CreateIdentity(&endmatrix);
5279 segmentmins[0] = min(boxstartmins[0], boxendmins[0]);
5280 segmentmins[1] = min(boxstartmins[1], boxendmins[1]);
5281 segmentmins[2] = min(boxstartmins[2], boxendmins[2]);
5282 segmentmaxs[0] = max(boxstartmaxs[0], boxendmaxs[0]);
5283 segmentmaxs[1] = max(boxstartmaxs[1], boxendmaxs[1]);
5284 segmentmaxs[2] = max(boxstartmaxs[2], boxendmaxs[2]);
5285 if (mod_q3bsp_optimizedtraceline.integer && VectorCompare(boxstartmins, boxstartmaxs) && VectorCompare(boxendmins, boxendmaxs))
5287 if (VectorCompare(boxstartmins, boxendmins))
5290 if (model->brush.submodel)
5292 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5293 if (brush->colbrushf)
5294 Collision_TracePointBrushFloat(trace, boxstartmins, brush->colbrushf);
5297 Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, boxstartmins, ++markframe);
5302 if (model->brush.submodel)
5304 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5305 if (brush->colbrushf)
5306 Collision_TraceLineBrushFloat(trace, boxstartmins, boxendmins, brush->colbrushf, brush->colbrushf);
5307 if (mod_q3bsp_curves_collisions.integer)
5308 for (i = 0, surface = model->brush.data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5309 if (surface->mesh.num_collisiontriangles)
5310 Collision_TraceLineTriangleMeshFloat(trace, boxstartmins, boxendmins, surface->mesh.num_collisiontriangles, surface->mesh.data_collisionelement3i, surface->mesh.data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
5313 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, boxstartmins, boxendmins, 0, 1, boxstartmins, boxendmins, ++markframe, segmentmins, segmentmaxs);
5318 // box trace, performed as brush trace
5319 thisbrush_start = Collision_BrushForBox(&startmatrix, boxstartmins, boxstartmaxs);
5320 thisbrush_end = Collision_BrushForBox(&endmatrix, boxendmins, boxendmaxs);
5321 if (model->brush.submodel)
5323 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5324 if (brush->colbrushf)
5325 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush->colbrushf, brush->colbrushf);
5326 if (mod_q3bsp_curves_collisions.integer)
5327 for (i = 0, surface = model->brush.data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5328 if (surface->mesh.num_collisiontriangles)
5329 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->mesh.num_collisiontriangles, surface->mesh.data_collisionelement3i, surface->mesh.data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
5332 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, model->brush.data_nodes, thisbrush_start, thisbrush_end, ++markframe, segmentmins, segmentmaxs);
5336 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
5338 int supercontents = 0;
5339 if (nativecontents & CONTENTSQ3_SOLID)
5340 supercontents |= SUPERCONTENTS_SOLID;
5341 if (nativecontents & CONTENTSQ3_WATER)
5342 supercontents |= SUPERCONTENTS_WATER;
5343 if (nativecontents & CONTENTSQ3_SLIME)
5344 supercontents |= SUPERCONTENTS_SLIME;
5345 if (nativecontents & CONTENTSQ3_LAVA)
5346 supercontents |= SUPERCONTENTS_LAVA;
5347 if (nativecontents & CONTENTSQ3_BODY)
5348 supercontents |= SUPERCONTENTS_BODY;
5349 if (nativecontents & CONTENTSQ3_CORPSE)
5350 supercontents |= SUPERCONTENTS_CORPSE;
5351 if (nativecontents & CONTENTSQ3_NODROP)
5352 supercontents |= SUPERCONTENTS_NODROP;
5353 return supercontents;
5356 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
5358 int nativecontents = 0;
5359 if (supercontents & SUPERCONTENTS_SOLID)
5360 nativecontents |= CONTENTSQ3_SOLID;
5361 if (supercontents & SUPERCONTENTS_WATER)
5362 nativecontents |= CONTENTSQ3_WATER;
5363 if (supercontents & SUPERCONTENTS_SLIME)
5364 nativecontents |= CONTENTSQ3_SLIME;
5365 if (supercontents & SUPERCONTENTS_LAVA)
5366 nativecontents |= CONTENTSQ3_LAVA;
5367 if (supercontents & SUPERCONTENTS_BODY)
5368 nativecontents |= CONTENTSQ3_BODY;
5369 if (supercontents & SUPERCONTENTS_CORPSE)
5370 nativecontents |= CONTENTSQ3_CORPSE;
5371 if (supercontents & SUPERCONTENTS_NODROP)
5372 nativecontents |= CONTENTSQ3_NODROP;
5373 return nativecontents;
5376 void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
5381 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
5382 node = node->children[1];
5384 numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
5385 if (loadmodel->brush.num_leafs < numleafs)
5386 loadmodel->brush.num_leafs = numleafs;
5389 void Mod_Q3BSP_Load(model_t *mod, void *buffer)
5391 int i, j, numshadowmeshtriangles;
5392 q3dheader_t *header;
5393 float corner[3], yawradius, modelradius;
5394 msurface_t *surface;
5396 mod->type = mod_brushq3;
5397 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
5400 header = (q3dheader_t *)buffer;
5402 i = LittleLong(header->version);
5403 if (i != Q3BSPVERSION)
5404 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
5405 if (mod->isworldmodel)
5406 Cvar_SetValue("halflifebsp", false);
5408 mod->soundfromcenter = true;
5409 mod->TraceBox = Mod_Q3BSP_TraceBox;
5410 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
5411 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
5412 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
5413 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
5414 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
5415 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
5416 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
5417 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5418 mod->Draw = R_Q1BSP_Draw;
5419 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
5420 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
5421 mod->DrawLight = R_Q1BSP_DrawLight;
5423 mod_base = (qbyte *)header;
5425 // swap all the lumps
5426 header->ident = LittleLong(header->ident);
5427 header->version = LittleLong(header->version);
5428 for (i = 0;i < Q3HEADER_LUMPS;i++)
5430 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
5431 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
5434 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
5435 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
5436 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
5437 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
5438 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
5439 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
5440 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
5441 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
5442 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS]);
5443 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
5444 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
5445 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
5446 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
5447 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
5448 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
5449 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
5450 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
5451 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
5453 // make a single combined shadow mesh to allow optimized shadow volume creation
5454 numshadowmeshtriangles = 0;
5455 for (j = 0, surface = loadmodel->brush.data_surfaces;j < loadmodel->brush.num_surfaces;j++, surface++)
5457 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
5458 numshadowmeshtriangles += surface->mesh.num_triangles;
5460 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
5461 for (j = 0, surface = loadmodel->brush.data_surfaces;j < loadmodel->brush.num_surfaces;j++, surface++)
5462 Mod_ShadowMesh_AddMesh(loadmodel->mempool, loadmodel->brush.shadowmesh, NULL, NULL, NULL, surface->mesh.data_vertex3f, NULL, NULL, NULL, NULL, surface->mesh.num_triangles, surface->mesh.data_element3i);
5463 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
5464 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
5466 loadmodel->brush.num_leafs = 0;
5467 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
5469 if (loadmodel->isworldmodel)
5471 // clear out any stale submodels or worldmodels lying around
5472 // if we did this clear before now, an error might abort loading and
5473 // leave things in a bad state
5474 Mod_RemoveStaleWorldModels(loadmodel);
5478 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
5483 // LordHavoc: only register submodels if it is the world
5484 // (prevents external bsp models from replacing world submodels with
5486 if (!loadmodel->isworldmodel)
5488 // duplicate the basic information
5489 sprintf(name, "*%i", i);
5490 mod = Mod_FindName(name);
5492 strcpy(mod->name, name);
5493 // textures and memory belong to the main model
5494 mod->texturepool = NULL;
5495 mod->mempool = NULL;
5496 mod->brush.GetPVS = NULL;
5497 mod->brush.FatPVS = NULL;
5498 mod->brush.BoxTouchingPVS = NULL;
5499 mod->brush.BoxTouchingVisibleLeafs = NULL;
5500 mod->brush.LightPoint = NULL;
5501 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5503 mod->brush.submodel = i;
5505 // make the model surface list (used by shadowing/lighting)
5506 mod->firstmodelsurface = mod->brushq3.data_models[i].firstface;
5507 mod->nummodelsurfaces = mod->brushq3.data_models[i].numfaces;
5508 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
5509 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
5510 mod->surfacelist = Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
5511 for (j = 0;j < mod->nummodelsurfaces;j++)
5512 mod->surfacelist[j] = mod->firstmodelsurface + j;
5514 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
5515 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
5516 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
5517 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
5518 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
5519 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
5520 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
5521 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
5522 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
5523 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
5524 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
5525 mod->yawmins[2] = mod->normalmins[2];
5526 mod->yawmaxs[2] = mod->normalmaxs[2];
5527 mod->radius = modelradius;
5528 mod->radius2 = modelradius * modelradius;
5530 for (j = 0;j < mod->nummodelsurfaces;j++)
5531 if (mod->brush.data_surfaces[j + mod->firstmodelsurface].texture->surfaceflags & Q3SURFACEFLAG_SKY)
5533 if (j < mod->nummodelsurfaces)
5534 mod->DrawSky = R_Q1BSP_DrawSky;
5538 void Mod_IBSP_Load(model_t *mod, void *buffer)
5540 int i = LittleLong(((int *)buffer)[1]);
5541 if (i == Q3BSPVERSION)
5542 Mod_Q3BSP_Load(mod,buffer);
5543 else if (i == Q2BSPVERSION)
5544 Mod_Q2BSP_Load(mod,buffer);
5546 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i\n", i);
5549 void Mod_MAP_Load(model_t *mod, void *buffer)
5551 Host_Error("Mod_MAP_Load: not yet implemented\n");