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 //cvar_t r_subdivide_size = {CVAR_SAVE, "r_subdivide_size", "128"};
30 cvar_t halflifebsp = {0, "halflifebsp", "0"};
31 cvar_t mcbsp = {0, "mcbsp", "0"};
32 cvar_t r_novis = {0, "r_novis", "0"};
33 cvar_t r_miplightmaps = {CVAR_SAVE, "r_miplightmaps", "0"};
34 cvar_t r_lightmaprgba = {0, "r_lightmaprgba", "1"};
35 cvar_t r_nosurftextures = {0, "r_nosurftextures", "0"};
36 cvar_t r_subdivisions_tolerance = {0, "r_subdivisions_tolerance", "4"};
37 cvar_t r_subdivisions_mintess = {0, "r_subdivisions_mintess", "1"};
38 cvar_t r_subdivisions_maxtess = {0, "r_subdivisions_maxtess", "1024"};
39 cvar_t r_subdivisions_maxvertices = {0, "r_subdivisions_maxvertices", "65536"};
40 cvar_t r_subdivisions_collision_tolerance = {0, "r_subdivisions_collision_tolerance", "15"};
41 cvar_t r_subdivisions_collision_mintess = {0, "r_subdivisions_collision_mintess", "1"};
42 cvar_t r_subdivisions_collision_maxtess = {0, "r_subdivisions_collision_maxtess", "1024"};
43 cvar_t r_subdivisions_collision_maxvertices = {0, "r_subdivisions_collision_maxvertices", "4225"};
44 cvar_t mod_q3bsp_curves_collisions = {0, "mod_q3bsp_curves_collisions", "1"};
45 cvar_t mod_q3bsp_optimizedtraceline = {0, "mod_q3bsp_optimizedtraceline", "1"};
46 cvar_t mod_q3bsp_debugtracebrush = {0, "mod_q3bsp_debugtracebrush", "0"};
48 void Mod_BrushInit(void)
50 // Cvar_RegisterVariable(&r_subdivide_size);
51 Cvar_RegisterVariable(&halflifebsp);
52 Cvar_RegisterVariable(&mcbsp);
53 Cvar_RegisterVariable(&r_novis);
54 Cvar_RegisterVariable(&r_miplightmaps);
55 Cvar_RegisterVariable(&r_lightmaprgba);
56 Cvar_RegisterVariable(&r_nosurftextures);
57 Cvar_RegisterVariable(&r_subdivisions_tolerance);
58 Cvar_RegisterVariable(&r_subdivisions_mintess);
59 Cvar_RegisterVariable(&r_subdivisions_maxtess);
60 Cvar_RegisterVariable(&r_subdivisions_maxvertices);
61 Cvar_RegisterVariable(&r_subdivisions_collision_tolerance);
62 Cvar_RegisterVariable(&r_subdivisions_collision_mintess);
63 Cvar_RegisterVariable(&r_subdivisions_collision_maxtess);
64 Cvar_RegisterVariable(&r_subdivisions_collision_maxvertices);
65 Cvar_RegisterVariable(&mod_q3bsp_curves_collisions);
66 Cvar_RegisterVariable(&mod_q3bsp_optimizedtraceline);
67 Cvar_RegisterVariable(&mod_q3bsp_debugtracebrush);
70 static mleaf_t *Mod_Q1BSP_PointInLeaf(model_t *model, const vec3_t p)
77 // LordHavoc: modified to start at first clip node,
78 // in other words: first node of the (sub)model
79 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
81 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
83 return (mleaf_t *)node;
86 static void Mod_Q1BSP_AmbientSoundLevelsForPoint(model_t *model, const vec3_t p, qbyte *out, int outsize)
90 leaf = Mod_Q1BSP_PointInLeaf(model, p);
93 i = min(outsize, (int)sizeof(leaf->ambient_sound_level));
96 memcpy(out, leaf->ambient_sound_level, i);
102 memset(out, 0, outsize);
105 static int Mod_Q1BSP_FindBoxClusters(model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
108 int nodestackindex = 0;
109 mnode_t *node, *nodestack[1024];
110 if (!model->brush.num_pvsclusters)
112 node = model->brush.data_nodes;
118 // node - recurse down the BSP tree
119 int side = BoxOnPlaneSide(mins, maxs, node->plane) - 1;
122 // box is on one side of plane, take that path
123 node = node->children[side];
127 // box crosses plane, take one path and remember the other
128 if (nodestackindex < 1024)
129 nodestack[nodestackindex++] = node->children[0];
130 node = node->children[1];
136 // leaf - add clusterindex to list
137 if (numclusters < maxclusters)
138 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
142 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
146 if (nodestackindex < 1024)
147 nodestack[nodestackindex++] = node->children[0];
148 node = node->children[1];
153 // leaf - add clusterindex to list
154 if (numclusters < maxclusters)
155 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
160 // try another path we didn't take earlier
161 if (nodestackindex == 0)
163 node = nodestack[--nodestackindex];
165 // return number of clusters found (even if more than the maxclusters)
169 static int Mod_Q1BSP_BoxTouchingPVS(model_t *model, const qbyte *pvs, const vec3_t mins, const vec3_t maxs)
171 int nodestackindex = 0;
172 mnode_t *node, *nodestack[1024];
173 if (!model->brush.num_pvsclusters)
175 node = model->brush.data_nodes;
181 // node - recurse down the BSP tree
182 int side = BoxOnPlaneSide(mins, maxs, node->plane) - 1;
185 // box is on one side of plane, take that path
186 node = node->children[side];
190 // box crosses plane, take one path and remember the other
191 if (nodestackindex < 1024)
192 nodestack[nodestackindex++] = node->children[0];
193 node = node->children[1];
199 // leaf - check cluster bit
200 int clusterindex = ((mleaf_t *)node)->clusterindex;
201 if (CHECKPVSBIT(pvs, clusterindex))
203 // it is visible, return immediately with the news
208 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
212 if (nodestackindex < 1024)
213 nodestack[nodestackindex++] = node->children[0];
214 node = node->children[1];
219 // leaf - check cluster bit
220 int clusterindex = ((mleaf_t *)node)->clusterindex;
221 if (CHECKPVSBIT(pvs, clusterindex))
223 // it is visible, return immediately with the news
229 // nothing to see here, try another path we didn't take earlier
230 if (nodestackindex == 0)
232 node = nodestack[--nodestackindex];
238 static int Mod_Q1BSP_BoxTouchingLeafPVS(model_t *model, const qbyte *pvs, const vec3_t mins, const vec3_t maxs)
240 int nodestackindex = 0;
241 mnode_t *node, *nodestack[1024];
242 if (!model->brush.num_leafs)
244 node = model->brush.data_nodes;
250 // node - recurse down the BSP tree
251 int side = BoxOnPlaneSide(mins, maxs, node->plane) - 1;
254 // box is on one side of plane, take that path
255 node = node->children[side];
259 // box crosses plane, take one path and remember the other
260 if (nodestackindex < 1024)
261 nodestack[nodestackindex++] = node->children[0];
262 node = node->children[1];
268 // leaf - check cluster bit
269 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
270 if (CHECKPVSBIT(pvs, clusterindex))
272 // it is visible, return immediately with the news
277 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
281 if (nodestackindex < 1024)
282 nodestack[nodestackindex++] = node->children[0];
283 node = node->children[1];
288 // leaf - check cluster bit
289 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
290 if (CHECKPVSBIT(pvs, clusterindex))
292 // it is visible, return immediately with the news
298 // nothing to see here, try another path we didn't take earlier
299 if (nodestackindex == 0)
301 node = nodestack[--nodestackindex];
307 static int Mod_Q1BSP_BoxTouchingVisibleLeafs(model_t *model, const qbyte *visibleleafs, const vec3_t mins, const vec3_t maxs)
309 int nodestackindex = 0;
310 mnode_t *node, *nodestack[1024];
311 if (!model->brush.num_leafs)
313 node = model->brush.data_nodes;
319 // node - recurse down the BSP tree
320 int side = BoxOnPlaneSide(mins, maxs, node->plane) - 1;
323 // box is on one side of plane, take that path
324 node = node->children[side];
328 // box crosses plane, take one path and remember the other
329 if (nodestackindex < 1024)
330 nodestack[nodestackindex++] = node->children[0];
331 node = node->children[1];
337 // leaf - check if it is visible
338 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
340 // it is visible, return immediately with the news
345 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
349 if (nodestackindex < 1024)
350 nodestack[nodestackindex++] = node->children[0];
351 node = node->children[1];
356 // leaf - check if it is visible
357 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
359 // it is visible, return immediately with the news
365 // nothing to see here, try another path we didn't take earlier
366 if (nodestackindex == 0)
368 node = nodestack[--nodestackindex];
374 typedef struct findnonsolidlocationinfo_s
382 findnonsolidlocationinfo_t;
384 static void Mod_Q1BSP_FindNonSolidLocation_r_Leaf(findnonsolidlocationinfo_t *info, mleaf_t *leaf)
386 int i, surfacenum, k, *tri, *mark;
387 float dist, f, vert[3][3], edge[3][3], facenormal[3], edgenormal[3][3], point[3];
389 for (surfacenum = 0, mark = leaf->firstleafsurface;surfacenum < leaf->numleafsurfaces;surfacenum++, mark++)
391 surface = info->model->data_surfaces + *mark;
392 if (surface->texture->supercontents & SUPERCONTENTS_SOLID)
394 for (k = 0;k < surface->num_triangles;k++)
396 tri = (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle) + k * 3;
397 VectorCopy((surface->groupmesh->data_vertex3f + tri[0] * 3), vert[0]);
398 VectorCopy((surface->groupmesh->data_vertex3f + tri[1] * 3), vert[1]);
399 VectorCopy((surface->groupmesh->data_vertex3f + tri[2] * 3), vert[2]);
400 VectorSubtract(vert[1], vert[0], edge[0]);
401 VectorSubtract(vert[2], vert[1], edge[1]);
402 CrossProduct(edge[1], edge[0], facenormal);
403 if (facenormal[0] || facenormal[1] || facenormal[2])
405 VectorNormalize(facenormal);
406 f = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
407 if (f <= info->bestdist && f >= -info->bestdist)
409 VectorSubtract(vert[0], vert[2], edge[2]);
410 VectorNormalize(edge[0]);
411 VectorNormalize(edge[1]);
412 VectorNormalize(edge[2]);
413 CrossProduct(facenormal, edge[0], edgenormal[0]);
414 CrossProduct(facenormal, edge[1], edgenormal[1]);
415 CrossProduct(facenormal, edge[2], edgenormal[2]);
417 if (DotProduct(info->center, edgenormal[0]) < DotProduct(vert[0], edgenormal[0])
418 && DotProduct(info->center, edgenormal[1]) < DotProduct(vert[1], edgenormal[1])
419 && DotProduct(info->center, edgenormal[2]) < DotProduct(vert[2], edgenormal[2]))
421 // we got lucky, the center is within the face
422 dist = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
426 if (info->bestdist > dist)
428 info->bestdist = dist;
429 VectorScale(facenormal, (info->radius - -dist), info->nudge);
434 if (info->bestdist > dist)
436 info->bestdist = dist;
437 VectorScale(facenormal, (info->radius - dist), info->nudge);
443 // check which edge or vertex the center is nearest
444 for (i = 0;i < 3;i++)
446 f = DotProduct(info->center, edge[i]);
447 if (f >= DotProduct(vert[0], edge[i])
448 && f <= DotProduct(vert[1], edge[i]))
451 VectorMA(info->center, -f, edge[i], point);
452 dist = sqrt(DotProduct(point, point));
453 if (info->bestdist > dist)
455 info->bestdist = dist;
456 VectorScale(point, (info->radius / dist), info->nudge);
458 // skip both vertex checks
459 // (both are further away than this edge)
464 // not on edge, check first vertex of edge
465 VectorSubtract(info->center, vert[i], point);
466 dist = sqrt(DotProduct(point, point));
467 if (info->bestdist > dist)
469 info->bestdist = dist;
470 VectorScale(point, (info->radius / dist), info->nudge);
482 static void Mod_Q1BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, mnode_t *node)
486 float f = PlaneDiff(info->center, node->plane);
487 if (f >= -info->bestdist)
488 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[0]);
489 if (f <= info->bestdist)
490 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[1]);
494 if (((mleaf_t *)node)->numleafsurfaces)
495 Mod_Q1BSP_FindNonSolidLocation_r_Leaf(info, (mleaf_t *)node);
499 static void Mod_Q1BSP_FindNonSolidLocation(model_t *model, const vec3_t in, vec3_t out, float radius)
502 findnonsolidlocationinfo_t info;
508 VectorCopy(in, info.center);
509 info.radius = radius;
514 VectorClear(info.nudge);
515 info.bestdist = radius;
516 Mod_Q1BSP_FindNonSolidLocation_r(&info, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
517 VectorAdd(info.center, info.nudge, info.center);
519 while (info.bestdist < radius && ++i < 10);
520 VectorCopy(info.center, out);
523 int Mod_Q1BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
525 switch(nativecontents)
530 return SUPERCONTENTS_SOLID;
532 return SUPERCONTENTS_WATER;
534 return SUPERCONTENTS_SLIME;
536 return SUPERCONTENTS_LAVA;
538 return SUPERCONTENTS_SKY;
543 int Mod_Q1BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
545 if (supercontents & SUPERCONTENTS_SOLID)
546 return CONTENTS_SOLID;
547 if (supercontents & SUPERCONTENTS_SKY)
549 if (supercontents & SUPERCONTENTS_LAVA)
550 return CONTENTS_LAVA;
551 if (supercontents & SUPERCONTENTS_SLIME)
552 return CONTENTS_SLIME;
553 if (supercontents & SUPERCONTENTS_WATER)
554 return CONTENTS_WATER;
555 return CONTENTS_EMPTY;
558 typedef struct RecursiveHullCheckTraceInfo_s
560 // the hull we're tracing through
563 // the trace structure to fill in
566 // start, end, and end - start (in model space)
571 RecursiveHullCheckTraceInfo_t;
573 // 1/32 epsilon to keep floating point happy
574 #define DIST_EPSILON (0.03125)
576 #define HULLCHECKSTATE_EMPTY 0
577 #define HULLCHECKSTATE_SOLID 1
578 #define HULLCHECKSTATE_DONE 2
580 static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int num, double p1f, double p2f, double p1[3], double p2[3])
582 // status variables, these don't need to be saved on the stack when
583 // recursing... but are because this should be thread-safe
584 // (note: tracing against a bbox is not thread-safe, yet)
589 // variables that need to be stored on the stack when recursing
594 // LordHavoc: a goto! everyone flee in terror... :)
599 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
600 if (!t->trace->startfound)
602 t->trace->startfound = true;
603 t->trace->startsupercontents |= num;
605 if (num & SUPERCONTENTS_LIQUIDSMASK)
606 t->trace->inwater = true;
608 t->trace->inopen = true;
609 if (num & t->trace->hitsupercontentsmask)
611 // if the first leaf is solid, set startsolid
612 if (t->trace->allsolid)
613 t->trace->startsolid = true;
614 #if COLLISIONPARANOID >= 3
617 return HULLCHECKSTATE_SOLID;
621 t->trace->allsolid = false;
622 #if COLLISIONPARANOID >= 3
625 return HULLCHECKSTATE_EMPTY;
629 // find the point distances
630 node = t->hull->clipnodes + num;
632 plane = t->hull->planes + node->planenum;
635 t1 = p1[plane->type] - plane->dist;
636 t2 = p2[plane->type] - plane->dist;
640 t1 = DotProduct (plane->normal, p1) - plane->dist;
641 t2 = DotProduct (plane->normal, p2) - plane->dist;
648 #if COLLISIONPARANOID >= 3
651 num = node->children[1];
660 #if COLLISIONPARANOID >= 3
663 num = node->children[0];
669 // the line intersects, find intersection point
670 // LordHavoc: this uses the original trace for maximum accuracy
671 #if COLLISIONPARANOID >= 3
676 t1 = t->start[plane->type] - plane->dist;
677 t2 = t->end[plane->type] - plane->dist;
681 t1 = DotProduct (plane->normal, t->start) - plane->dist;
682 t2 = DotProduct (plane->normal, t->end) - plane->dist;
685 midf = t1 / (t1 - t2);
686 midf = bound(p1f, midf, p2f);
687 VectorMA(t->start, midf, t->dist, mid);
689 // recurse both sides, front side first
690 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side], p1f, midf, p1, mid);
691 // if this side is not empty, return what it is (solid or done)
692 if (ret != HULLCHECKSTATE_EMPTY)
695 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side ^ 1], midf, p2f, mid, p2);
696 // if other side is not solid, return what it is (empty or done)
697 if (ret != HULLCHECKSTATE_SOLID)
700 // front is air and back is solid, this is the impact point...
703 t->trace->plane.dist = -plane->dist;
704 VectorNegate (plane->normal, t->trace->plane.normal);
708 t->trace->plane.dist = plane->dist;
709 VectorCopy (plane->normal, t->trace->plane.normal);
712 // calculate the true fraction
713 t1 = DotProduct(t->trace->plane.normal, t->start) - t->trace->plane.dist;
714 t2 = DotProduct(t->trace->plane.normal, t->end) - t->trace->plane.dist;
715 midf = t1 / (t1 - t2);
716 t->trace->realfraction = bound(0, midf, 1);
718 // calculate the return fraction which is nudged off the surface a bit
719 midf = (t1 - DIST_EPSILON) / (t1 - t2);
720 t->trace->fraction = bound(0, midf, 1);
722 #if COLLISIONPARANOID >= 3
725 return HULLCHECKSTATE_DONE;
728 #if COLLISIONPARANOID < 2
729 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
732 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];
733 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
734 t->trace->startsupercontents |= num;
735 if (num & SUPERCONTENTS_LIQUIDSMASK)
736 t->trace->inwater = true;
738 t->trace->inopen = true;
739 if (num & t->trace->hitsupercontentsmask)
741 t->trace->allsolid = t->trace->startsolid = true;
742 return HULLCHECKSTATE_SOLID;
746 t->trace->allsolid = t->trace->startsolid = false;
747 return HULLCHECKSTATE_EMPTY;
752 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)
754 // this function currently only supports same size start and end
756 RecursiveHullCheckTraceInfo_t rhc;
758 memset(&rhc, 0, sizeof(rhc));
759 memset(trace, 0, sizeof(trace_t));
761 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
762 rhc.trace->fraction = 1;
763 rhc.trace->realfraction = 1;
764 rhc.trace->allsolid = true;
765 VectorSubtract(boxstartmaxs, boxstartmins, boxsize);
767 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
768 else if (model->brush.ismcbsp)
770 if (boxsize[2] < 48) // pick the nearest of 40 or 56
771 rhc.hull = &model->brushq1.hulls[2]; // 16x16x40
773 rhc.hull = &model->brushq1.hulls[1]; // 16x16x56
775 else if (model->brush.ishlbsp)
777 // LordHavoc: this has to have a minor tolerance (the .1) because of
778 // minor float precision errors from the box being transformed around
779 if (boxsize[0] < 32.1)
781 if (boxsize[2] < 54) // pick the nearest of 36 or 72
782 rhc.hull = &model->brushq1.hulls[3]; // 32x32x36
784 rhc.hull = &model->brushq1.hulls[1]; // 32x32x72
787 rhc.hull = &model->brushq1.hulls[2]; // 64x64x64
791 // LordHavoc: this has to have a minor tolerance (the .1) because of
792 // minor float precision errors from the box being transformed around
793 if (boxsize[0] < 32.1)
794 rhc.hull = &model->brushq1.hulls[1]; // 32x32x56
796 rhc.hull = &model->brushq1.hulls[2]; // 64x64x88
798 VectorSubtract(boxstartmins, rhc.hull->clip_mins, rhc.start);
799 VectorSubtract(boxendmins, rhc.hull->clip_mins, rhc.end);
800 VectorSubtract(rhc.end, rhc.start, rhc.dist);
801 #if COLLISIONPARANOID >= 2
802 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]);
803 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
806 if (DotProduct(rhc.dist, rhc.dist))
807 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
809 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
813 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)
817 colplanef_t cbox_planes[6];
818 cbox.supercontents = boxsupercontents;
821 cbox.numtriangles = 0;
822 cbox.planes = cbox_planes;
824 cbox.elements = NULL;
832 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];
833 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];
834 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];
835 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];
836 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];
837 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];
838 memset(trace, 0, sizeof(trace_t));
839 trace->hitsupercontentsmask = hitsupercontentsmask;
841 trace->realfraction = 1;
842 Collision_TraceLineBrushFloat(trace, start, end, &cbox, &cbox);
844 RecursiveHullCheckTraceInfo_t rhc;
845 static hull_t box_hull;
846 static dclipnode_t box_clipnodes[6];
847 static mplane_t box_planes[6];
848 // fill in a default trace
849 memset(&rhc, 0, sizeof(rhc));
850 memset(trace, 0, sizeof(trace_t));
851 //To keep everything totally uniform, bounding boxes are turned into small
852 //BSP trees instead of being compared directly.
853 // create a temp hull from bounding box sizes
854 box_planes[0].dist = cmaxs[0] - mins[0];
855 box_planes[1].dist = cmins[0] - maxs[0];
856 box_planes[2].dist = cmaxs[1] - mins[1];
857 box_planes[3].dist = cmins[1] - maxs[1];
858 box_planes[4].dist = cmaxs[2] - mins[2];
859 box_planes[5].dist = cmins[2] - maxs[2];
860 #if COLLISIONPARANOID >= 3
861 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]);
864 if (box_hull.clipnodes == NULL)
868 //Set up the planes and clipnodes so that the six floats of a bounding box
869 //can just be stored out and get a proper hull_t structure.
871 box_hull.clipnodes = box_clipnodes;
872 box_hull.planes = box_planes;
873 box_hull.firstclipnode = 0;
874 box_hull.lastclipnode = 5;
876 for (i = 0;i < 6;i++)
878 box_clipnodes[i].planenum = i;
882 box_clipnodes[i].children[side] = CONTENTS_EMPTY;
884 box_clipnodes[i].children[side^1] = i + 1;
886 box_clipnodes[i].children[side^1] = CONTENTS_SOLID;
888 box_planes[i].type = i>>1;
889 box_planes[i].normal[i>>1] = 1;
893 // trace a line through the generated clipping hull
894 //rhc.boxsupercontents = boxsupercontents;
895 rhc.hull = &box_hull;
897 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
898 rhc.trace->fraction = 1;
899 rhc.trace->realfraction = 1;
900 rhc.trace->allsolid = true;
901 VectorCopy(start, rhc.start);
902 VectorCopy(end, rhc.end);
903 VectorSubtract(rhc.end, rhc.start, rhc.dist);
904 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
905 //VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
906 if (rhc.trace->startsupercontents)
907 rhc.trace->startsupercontents = boxsupercontents;
911 static int Mod_Q1BSP_LightPoint_RecursiveBSPNode(model_t *model, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const mnode_t *node, float x, float y, float startz, float endz)
913 int side, distz = endz - startz;
919 return false; // didn't hit anything
921 switch (node->plane->type)
924 node = node->children[x < node->plane->dist];
927 node = node->children[y < node->plane->dist];
930 side = startz < node->plane->dist;
931 if ((endz < node->plane->dist) == side)
933 node = node->children[side];
936 // found an intersection
937 mid = node->plane->dist;
940 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
941 front += startz * node->plane->normal[2];
942 back += endz * node->plane->normal[2];
943 side = front < node->plane->dist;
944 if ((back < node->plane->dist) == side)
946 node = node->children[side];
949 // found an intersection
950 mid = startz + distz * (front - node->plane->dist) / (front - back);
954 // go down front side
955 if (node->children[side]->plane && Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
956 return true; // hit something
959 // check for impact on this node
960 if (node->numsurfaces)
965 surface = model->data_surfaces + node->firstsurface;
966 for (i = 0;i < node->numsurfaces;i++, surface++)
968 if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->lightmapinfo->samples)
969 continue; // no lightmaps
971 ds = (int) (x * surface->lightmapinfo->texinfo->vecs[0][0] + y * surface->lightmapinfo->texinfo->vecs[0][1] + mid * surface->lightmapinfo->texinfo->vecs[0][2] + surface->lightmapinfo->texinfo->vecs[0][3]) - surface->lightmapinfo->texturemins[0];
972 dt = (int) (x * surface->lightmapinfo->texinfo->vecs[1][0] + y * surface->lightmapinfo->texinfo->vecs[1][1] + mid * surface->lightmapinfo->texinfo->vecs[1][2] + surface->lightmapinfo->texinfo->vecs[1][3]) - surface->lightmapinfo->texturemins[1];
974 if (ds >= 0 && ds < surface->lightmapinfo->extents[0] && dt >= 0 && dt < surface->lightmapinfo->extents[1])
977 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;
978 lmwidth = ((surface->lightmapinfo->extents[0]>>4)+1);
979 lmheight = ((surface->lightmapinfo->extents[1]>>4)+1);
980 line3 = lmwidth * 3; // LordHavoc: *3 for colored lighting
981 size3 = lmwidth * lmheight * 3; // LordHavoc: *3 for colored lighting
983 lightmap = surface->lightmapinfo->samples + ((dt>>4) * lmwidth + (ds>>4))*3; // LordHavoc: *3 for colored lighting
985 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++)
987 scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]];
988 r00 += lightmap[ 0] * scale;g00 += lightmap[ 1] * scale;b00 += lightmap[ 2] * scale;
989 r01 += lightmap[ 3] * scale;g01 += lightmap[ 4] * scale;b01 += lightmap[ 5] * scale;
990 r10 += lightmap[line3+0] * scale;g10 += lightmap[line3+1] * scale;b10 += lightmap[line3+2] * scale;
991 r11 += lightmap[line3+3] * scale;g11 += lightmap[line3+4] * scale;b11 += lightmap[line3+5] * scale;
996 LordHavoc: here's the readable version of the interpolation
997 code, not quite as easy for the compiler to optimize...
999 dsfrac is the X position in the lightmap pixel, * 16
1000 dtfrac is the Y position in the lightmap pixel, * 16
1001 r00 is top left corner, r01 is top right corner
1002 r10 is bottom left corner, r11 is bottom right corner
1003 g and b are the same layout.
1004 r0 and r1 are the top and bottom intermediate results
1006 first we interpolate the top two points, to get the top
1009 r0 = (((r01-r00) * dsfrac) >> 4) + r00;
1010 g0 = (((g01-g00) * dsfrac) >> 4) + g00;
1011 b0 = (((b01-b00) * dsfrac) >> 4) + b00;
1013 then we interpolate the bottom two points, to get the
1016 r1 = (((r11-r10) * dsfrac) >> 4) + r10;
1017 g1 = (((g11-g10) * dsfrac) >> 4) + g10;
1018 b1 = (((b11-b10) * dsfrac) >> 4) + b10;
1020 then we interpolate the top and bottom samples to get the
1021 middle sample (the one which was requested)
1023 r = (((r1-r0) * dtfrac) >> 4) + r0;
1024 g = (((g1-g0) * dtfrac) >> 4) + g0;
1025 b = (((b1-b0) * dtfrac) >> 4) + b0;
1028 ambientcolor[0] += (float) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)) * (1.0f / 32768.0f);
1029 ambientcolor[1] += (float) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)) * (1.0f / 32768.0f);
1030 ambientcolor[2] += (float) ((((((((b11-b10) * dsfrac) >> 4) + b10)-((((b01-b00) * dsfrac) >> 4) + b00)) * dtfrac) >> 4) + ((((b01-b00) * dsfrac) >> 4) + b00)) * (1.0f / 32768.0f);
1031 return true; // success
1036 // go down back side
1037 node = node->children[side ^ 1];
1039 distz = endz - startz;
1044 void Mod_Q1BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
1046 Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, p[0], p[1], p[2], p[2] - 65536);
1049 static void Mod_Q1BSP_DecompressVis(const qbyte *in, const qbyte *inend, qbyte *out, qbyte *outend)
1052 qbyte *outstart = out;
1053 while (out < outend)
1057 Con_Printf("Mod_Q1BSP_DecompressVis: input underrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
1067 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);
1070 for (c = *in++;c > 0;c--)
1074 Con_Printf("Mod_Q1BSP_DecompressVis: output overrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
1085 R_Q1BSP_LoadSplitSky
1087 A sky texture is 256*128, with the right side being a masked overlay
1090 void R_Q1BSP_LoadSplitSky (qbyte *src, int width, int height, int bytesperpixel)
1093 unsigned solidpixels[128*128], alphapixels[128*128];
1095 // if sky isn't the right size, just use it as a solid layer
1096 if (width != 256 || height != 128)
1098 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);
1099 loadmodel->brush.alphaskytexture = NULL;;
1103 if (bytesperpixel == 4)
1105 for (i = 0;i < 128;i++)
1107 for (j = 0;j < 128;j++)
1109 solidpixels[(i*128) + j] = ((unsigned *)src)[i*256+j+128];
1110 alphapixels[(i*128) + j] = ((unsigned *)src)[i*256+j];
1116 // make an average value for the back to avoid
1117 // a fringe on the top level
1126 for (i = 0;i < 128;i++)
1128 for (j = 0;j < 128;j++)
1130 rgba.i = palette_complete[src[i*256 + j + 128]];
1136 rgba.b[0] = r/(128*128);
1137 rgba.b[1] = g/(128*128);
1138 rgba.b[2] = b/(128*128);
1140 for (i = 0;i < 128;i++)
1142 for (j = 0;j < 128;j++)
1144 solidpixels[(i*128) + j] = palette_complete[src[i*256 + j + 128]];
1145 alphapixels[(i*128) + j] = (p = src[i*256 + j]) ? palette_complete[p] : rgba.i;
1150 loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", 128, 128, (qbyte *) solidpixels, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
1151 loadmodel->brush.alphaskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_alphatexture", 128, 128, (qbyte *) alphapixels, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
1154 static void Mod_Q1BSP_LoadTextures(lump_t *l)
1156 int i, j, k, num, max, altmax, mtwidth, mtheight, *dofs, incomplete;
1158 texture_t *tx, *tx2, *anims[10], *altanims[10];
1160 qbyte *data, *mtdata;
1163 loadmodel->data_textures = NULL;
1165 // add two slots for notexture walls and notexture liquids
1168 m = (dmiptexlump_t *)(mod_base + l->fileofs);
1169 m->nummiptex = LittleLong (m->nummiptex);
1170 loadmodel->num_textures = m->nummiptex + 2;
1175 loadmodel->num_textures = 2;
1178 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
1180 // fill out all slots with notexture
1181 for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
1183 strcpy(tx->name, "NO TEXTURE FOUND");
1186 tx->skin.base = r_texture_notexture;
1187 tx->basematerialflags = 0;
1188 if (i == loadmodel->num_textures - 1)
1190 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES;
1191 tx->supercontents = SUPERCONTENTS_WATER;
1195 tx->basematerialflags |= MATERIALFLAG_WALL;
1196 tx->supercontents = SUPERCONTENTS_SOLID;
1198 tx->currentframe = tx;
1204 // just to work around bounds checking when debugging with it (array index out of bounds error thing)
1206 // LordHavoc: mostly rewritten map texture loader
1207 for (i = 0;i < m->nummiptex;i++)
1209 dofs[i] = LittleLong(dofs[i]);
1210 if (dofs[i] == -1 || r_nosurftextures.integer)
1212 dmiptex = (miptex_t *)((qbyte *)m + dofs[i]);
1214 // make sure name is no more than 15 characters
1215 for (j = 0;dmiptex->name[j] && j < 15;j++)
1216 name[j] = dmiptex->name[j];
1219 mtwidth = LittleLong(dmiptex->width);
1220 mtheight = LittleLong(dmiptex->height);
1222 j = LittleLong(dmiptex->offsets[0]);
1226 if (j < 40 || j + mtwidth * mtheight > l->filelen)
1228 Con_Printf("Texture \"%s\" in \"%s\"is corrupt or incomplete\n", dmiptex->name, loadmodel->name);
1231 mtdata = (qbyte *)dmiptex + j;
1234 if ((mtwidth & 15) || (mtheight & 15))
1235 Con_Printf("warning: texture \"%s\" in \"%s\" is not 16 aligned\n", dmiptex->name, loadmodel->name);
1237 // LordHavoc: force all names to lowercase
1238 for (j = 0;name[j];j++)
1239 if (name[j] >= 'A' && name[j] <= 'Z')
1240 name[j] += 'a' - 'A';
1242 tx = loadmodel->data_textures + i;
1243 strcpy(tx->name, name);
1244 tx->width = mtwidth;
1245 tx->height = mtheight;
1249 sprintf(tx->name, "unnamed%i", i);
1250 Con_Printf("warning: unnamed texture in %s, renaming to %s\n", loadmodel->name, tx->name);
1253 // LordHavoc: HL sky textures are entirely different than quake
1254 if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == 256 && mtheight == 128)
1256 if (loadmodel->isworldmodel)
1258 data = loadimagepixels(tx->name, false, 0, 0);
1261 R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1264 else if (mtdata != NULL)
1265 R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1270 if (!Mod_LoadSkinFrame(&tx->skin, tx->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, true))
1272 // did not find external texture, load it from the bsp or wad3
1273 if (loadmodel->brush.ishlbsp)
1275 // internal texture overrides wad
1276 qbyte *pixels, *freepixels, *fogpixels;
1277 pixels = freepixels = NULL;
1279 pixels = W_ConvertWAD3Texture(dmiptex);
1281 pixels = freepixels = W_GetTexture(tx->name);
1284 tx->width = image_width;
1285 tx->height = image_height;
1286 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);
1287 if (Image_CheckAlpha(pixels, image_width * image_height, true))
1289 fogpixels = (qbyte *)Mem_Alloc(tempmempool, image_width * image_height * 4);
1290 for (j = 0;j < image_width * image_height * 4;j += 4)
1292 fogpixels[j + 0] = 255;
1293 fogpixels[j + 1] = 255;
1294 fogpixels[j + 2] = 255;
1295 fogpixels[j + 3] = pixels[j + 3];
1297 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);
1298 Mem_Free(fogpixels);
1302 Mem_Free(freepixels);
1304 else if (mtdata) // texture included
1305 Mod_LoadSkinFrame_Internal(&tx->skin, tx->name, TEXF_MIPMAP | TEXF_PRECACHE | TEXF_PICMIP, false, tx->name[0] != '*' && r_fullbrights.integer, mtdata, tx->width, tx->height);
1308 if (tx->skin.base == NULL)
1313 tx->skin.base = r_texture_notexture;
1316 tx->basematerialflags = 0;
1317 if (tx->name[0] == '*')
1319 // turb does not block movement
1320 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES;
1321 // LordHavoc: some turbulent textures should be fullbright and solid
1322 if (!strncmp(tx->name,"*lava",5)
1323 || !strncmp(tx->name,"*teleport",9)
1324 || !strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1325 tx->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
1327 tx->basematerialflags |= MATERIALFLAG_WATERALPHA;
1328 if (!strncmp(tx->name, "*lava", 5))
1329 tx->supercontents = SUPERCONTENTS_LAVA;
1330 else if (!strncmp(tx->name, "*slime", 6))
1331 tx->supercontents = SUPERCONTENTS_SLIME;
1333 tx->supercontents = SUPERCONTENTS_WATER;
1335 else if (tx->name[0] == 's' && tx->name[1] == 'k' && tx->name[2] == 'y')
1337 tx->supercontents = SUPERCONTENTS_SKY;
1338 tx->basematerialflags |= MATERIALFLAG_SKY;
1342 tx->supercontents = SUPERCONTENTS_SOLID;
1343 tx->basematerialflags |= MATERIALFLAG_WALL;
1346 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT;
1348 // start out with no animation
1349 tx->currentframe = tx;
1352 // sequence the animations
1353 for (i = 0;i < m->nummiptex;i++)
1355 tx = loadmodel->data_textures + i;
1356 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1358 if (tx->anim_total[0] || tx->anim_total[1])
1359 continue; // already sequenced
1361 // find the number of frames in the animation
1362 memset(anims, 0, sizeof(anims));
1363 memset(altanims, 0, sizeof(altanims));
1365 for (j = i;j < m->nummiptex;j++)
1367 tx2 = loadmodel->data_textures + j;
1368 if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
1372 if (num >= '0' && num <= '9')
1373 anims[num - '0'] = tx2;
1374 else if (num >= 'a' && num <= 'j')
1375 altanims[num - 'a'] = tx2;
1377 Con_Printf("Bad animating texture %s\n", tx->name);
1381 for (j = 0;j < 10;j++)
1388 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
1391 for (j = 0;j < max;j++)
1395 Con_Printf("Missing frame %i of %s\n", j, tx->name);
1399 for (j = 0;j < altmax;j++)
1403 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
1412 // if there is no alternate animation, duplicate the primary
1413 // animation into the alternate
1415 for (k = 0;k < 10;k++)
1416 altanims[k] = anims[k];
1419 // link together the primary animation
1420 for (j = 0;j < max;j++)
1423 tx2->animated = true;
1424 tx2->anim_total[0] = max;
1425 tx2->anim_total[1] = altmax;
1426 for (k = 0;k < 10;k++)
1428 tx2->anim_frames[0][k] = anims[k];
1429 tx2->anim_frames[1][k] = altanims[k];
1433 // if there really is an alternate anim...
1434 if (anims[0] != altanims[0])
1436 // link together the alternate animation
1437 for (j = 0;j < altmax;j++)
1440 tx2->animated = true;
1441 // the primary/alternate are reversed here
1442 tx2->anim_total[0] = altmax;
1443 tx2->anim_total[1] = max;
1444 for (k = 0;k < 10;k++)
1446 tx2->anim_frames[0][k] = altanims[k];
1447 tx2->anim_frames[1][k] = anims[k];
1454 static void Mod_Q1BSP_LoadLighting(lump_t *l)
1457 qbyte *in, *out, *data, d;
1458 char litfilename[1024];
1459 loadmodel->brushq1.lightdata = NULL;
1460 if (loadmodel->brush.ishlbsp) // LordHavoc: load the colored lighting data straight
1462 loadmodel->brushq1.lightdata = (qbyte *)Mem_Alloc(loadmodel->mempool, l->filelen);
1463 for (i=0; i<l->filelen; i++)
1464 loadmodel->brushq1.lightdata[i] = mod_base[l->fileofs+i] >>= 1;
1466 else if (loadmodel->brush.ismcbsp)
1468 loadmodel->brushq1.lightdata = (qbyte *)Mem_Alloc(loadmodel->mempool, l->filelen);
1469 memcpy(loadmodel->brushq1.lightdata, mod_base + l->fileofs, l->filelen);
1471 else // LordHavoc: bsp version 29 (normal white lighting)
1473 // LordHavoc: hope is not lost yet, check for a .lit file to load
1474 strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
1475 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
1476 strlcat (litfilename, ".lit", sizeof (litfilename));
1477 data = (qbyte*) FS_LoadFile(litfilename, tempmempool, false);
1480 if (fs_filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1482 i = LittleLong(((int *)data)[1]);
1485 Con_DPrintf("loaded %s\n", litfilename);
1486 loadmodel->brushq1.lightdata = (qbyte *)Mem_Alloc(loadmodel->mempool, fs_filesize - 8);
1487 memcpy(loadmodel->brushq1.lightdata, data + 8, fs_filesize - 8);
1493 Con_Printf("Unknown .lit file version (%d)\n", i);
1499 if (fs_filesize == 8)
1500 Con_Print("Empty .lit file, ignoring\n");
1502 Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", fs_filesize, 8 + l->filelen * 3);
1506 // LordHavoc: oh well, expand the white lighting data
1509 loadmodel->brushq1.lightdata = (qbyte *)Mem_Alloc(loadmodel->mempool, l->filelen*3);
1510 in = loadmodel->brushq1.lightdata + l->filelen*2; // place the file at the end, so it will not be overwritten until the very last write
1511 out = loadmodel->brushq1.lightdata;
1512 memcpy(in, mod_base + l->fileofs, l->filelen);
1513 for (i = 0;i < l->filelen;i++)
1523 static void Mod_Q1BSP_LoadLightList(void)
1525 int a, n, numlights;
1526 char tempchar, *s, *t, *lightsstring, lightsfilename[1024];
1529 strlcpy (lightsfilename, loadmodel->name, sizeof (lightsfilename));
1530 FS_StripExtension (lightsfilename, lightsfilename, sizeof(lightsfilename));
1531 strlcat (lightsfilename, ".lights", sizeof (lightsfilename));
1532 s = lightsstring = (char *) FS_LoadFile(lightsfilename, tempmempool, false);
1538 while (*s && *s != '\n' && *s != '\r')
1542 Mem_Free(lightsstring);
1543 Con_Printf("lights file must end with a newline\n");
1549 loadmodel->brushq1.lights = (mlight_t *)Mem_Alloc(loadmodel->mempool, numlights * sizeof(mlight_t));
1552 while (*s && n < numlights)
1555 while (*s && *s != '\n' && *s != '\r')
1559 Con_Printf("misparsed lights file!\n");
1562 e = loadmodel->brushq1.lights + n;
1565 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);
1569 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);
1579 Con_Printf("misparsed lights file!\n");
1580 loadmodel->brushq1.numlights = numlights;
1581 Mem_Free(lightsstring);
1585 static void Mod_Q1BSP_LoadVisibility(lump_t *l)
1587 loadmodel->brushq1.num_compressedpvs = 0;
1588 loadmodel->brushq1.data_compressedpvs = NULL;
1591 loadmodel->brushq1.num_compressedpvs = l->filelen;
1592 loadmodel->brushq1.data_compressedpvs = (qbyte *)Mem_Alloc(loadmodel->mempool, l->filelen);
1593 memcpy(loadmodel->brushq1.data_compressedpvs, mod_base + l->fileofs, l->filelen);
1596 // used only for HalfLife maps
1597 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
1599 char key[128], value[4096];
1604 if (!COM_ParseToken(&data, false))
1606 if (com_token[0] != '{')
1610 if (!COM_ParseToken(&data, false))
1612 if (com_token[0] == '}')
1613 break; // end of worldspawn
1614 if (com_token[0] == '_')
1615 strcpy(key, com_token + 1);
1617 strcpy(key, com_token);
1618 while (key[strlen(key)-1] == ' ') // remove trailing spaces
1619 key[strlen(key)-1] = 0;
1620 if (!COM_ParseToken(&data, false))
1622 strcpy(value, com_token);
1623 if (!strcmp("wad", key)) // for HalfLife maps
1625 if (loadmodel->brush.ishlbsp)
1628 for (i = 0;i < 4096;i++)
1629 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
1635 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
1636 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
1638 else if (value[i] == ';' || value[i] == 0)
1642 strcpy(wadname, "textures/");
1643 strcat(wadname, &value[j]);
1644 W_LoadTextureWadFile(wadname, false);
1656 static void Mod_Q1BSP_LoadEntities(lump_t *l)
1658 loadmodel->brush.entities = NULL;
1661 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1662 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
1663 if (loadmodel->brush.ishlbsp)
1664 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
1668 static void Mod_Q1BSP_LoadVertexes(lump_t *l)
1674 in = (dvertex_t *)(mod_base + l->fileofs);
1675 if (l->filelen % sizeof(*in))
1676 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
1677 count = l->filelen / sizeof(*in);
1678 out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1680 loadmodel->brushq1.vertexes = out;
1681 loadmodel->brushq1.numvertexes = count;
1683 for ( i=0 ; i<count ; i++, in++, out++)
1685 out->position[0] = LittleFloat(in->point[0]);
1686 out->position[1] = LittleFloat(in->point[1]);
1687 out->position[2] = LittleFloat(in->point[2]);
1691 // The following two functions should be removed and MSG_* or SZ_* function sets adjusted so they
1692 // can be used for this
1694 int SB_ReadInt (qbyte **buffer)
1697 i = ((*buffer)[0]) + 256*((*buffer)[1]) + 65536*((*buffer)[2]) + 16777216*((*buffer)[3]);
1703 float SB_ReadFloat (qbyte **buffer)
1711 u.i = SB_ReadInt (buffer);
1715 static void Mod_Q1BSP_LoadSubmodels(lump_t *l, hullinfo_t *hullinfo)
1721 index = (qbyte *)(mod_base + l->fileofs);
1722 if (l->filelen % (48+4*hullinfo->filehulls))
1723 Host_Error ("Mod_Q1BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
1725 count = l->filelen / (48+4*hullinfo->filehulls);
1726 out = (dmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
1728 loadmodel->brushq1.submodels = out;
1729 loadmodel->brush.numsubmodels = count;
1731 for (i = 0; i < count; i++, out++)
1733 // spread out the mins / maxs by a pixel
1734 out->mins[0] = SB_ReadFloat (&index) - 1;
1735 out->mins[1] = SB_ReadFloat (&index) - 1;
1736 out->mins[2] = SB_ReadFloat (&index) - 1;
1737 out->maxs[0] = SB_ReadFloat (&index) + 1;
1738 out->maxs[1] = SB_ReadFloat (&index) + 1;
1739 out->maxs[2] = SB_ReadFloat (&index) + 1;
1740 out->origin[0] = SB_ReadFloat (&index);
1741 out->origin[1] = SB_ReadFloat (&index);
1742 out->origin[2] = SB_ReadFloat (&index);
1743 for (j = 0; j < hullinfo->filehulls; j++)
1744 out->headnode[j] = SB_ReadInt (&index);
1745 out->visleafs = SB_ReadInt (&index);
1746 out->firstface = SB_ReadInt (&index);
1747 out->numfaces = SB_ReadInt (&index);
1751 static void Mod_Q1BSP_LoadEdges(lump_t *l)
1757 in = (dedge_t *)(mod_base + l->fileofs);
1758 if (l->filelen % sizeof(*in))
1759 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
1760 count = l->filelen / sizeof(*in);
1761 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1763 loadmodel->brushq1.edges = out;
1764 loadmodel->brushq1.numedges = count;
1766 for ( i=0 ; i<count ; i++, in++, out++)
1768 out->v[0] = (unsigned short)LittleShort(in->v[0]);
1769 out->v[1] = (unsigned short)LittleShort(in->v[1]);
1773 static void Mod_Q1BSP_LoadTexinfo(lump_t *l)
1777 int i, j, k, count, miptex;
1779 in = (texinfo_t *)(mod_base + l->fileofs);
1780 if (l->filelen % sizeof(*in))
1781 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
1782 count = l->filelen / sizeof(*in);
1783 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1785 loadmodel->brushq1.texinfo = out;
1786 loadmodel->brushq1.numtexinfo = count;
1788 for (i = 0;i < count;i++, in++, out++)
1790 for (k = 0;k < 2;k++)
1791 for (j = 0;j < 4;j++)
1792 out->vecs[k][j] = LittleFloat(in->vecs[k][j]);
1794 miptex = LittleLong(in->miptex);
1795 out->flags = LittleLong(in->flags);
1797 out->texture = NULL;
1798 if (loadmodel->data_textures)
1800 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
1801 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
1803 out->texture = loadmodel->data_textures + miptex;
1805 if (out->flags & TEX_SPECIAL)
1807 // if texture chosen is NULL or the shader needs a lightmap,
1808 // force to notexture water shader
1809 if (out->texture == NULL || out->texture->basematerialflags & MATERIALFLAG_WALL)
1810 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 1);
1814 // if texture chosen is NULL, force to notexture
1815 if (out->texture == NULL)
1816 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 2);
1822 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
1827 mins[0] = mins[1] = mins[2] = 9999;
1828 maxs[0] = maxs[1] = maxs[2] = -9999;
1830 for (i = 0;i < numverts;i++)
1832 for (j = 0;j < 3;j++, v++)
1842 #define MAX_SUBDIVPOLYTRIANGLES 4096
1843 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
1845 static int subdivpolyverts, subdivpolytriangles;
1846 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
1847 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
1849 static int subdivpolylookupvert(vec3_t v)
1852 for (i = 0;i < subdivpolyverts;i++)
1853 if (subdivpolyvert[i][0] == v[0]
1854 && subdivpolyvert[i][1] == v[1]
1855 && subdivpolyvert[i][2] == v[2])
1857 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
1858 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
1859 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
1860 return subdivpolyverts++;
1863 static void SubdividePolygon(int numverts, float *verts)
1865 int i, i1, i2, i3, f, b, c, p;
1866 vec3_t mins, maxs, front[256], back[256];
1867 float m, *pv, *cv, dist[256], frac;
1870 Host_Error("SubdividePolygon: ran out of verts in buffer");
1872 BoundPoly(numverts, verts, mins, maxs);
1874 for (i = 0;i < 3;i++)
1876 m = (mins[i] + maxs[i]) * 0.5;
1877 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
1878 if (maxs[i] - m < 8)
1880 if (m - mins[i] < 8)
1884 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
1885 dist[c] = cv[i] - m;
1888 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
1892 VectorCopy(pv, front[f]);
1897 VectorCopy(pv, back[b]);
1900 if (dist[p] == 0 || dist[c] == 0)
1902 if ((dist[p] > 0) != (dist[c] > 0) )
1905 frac = dist[p] / (dist[p] - dist[c]);
1906 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
1907 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
1908 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
1914 SubdividePolygon(f, front[0]);
1915 SubdividePolygon(b, back[0]);
1919 i1 = subdivpolylookupvert(verts);
1920 i2 = subdivpolylookupvert(verts + 3);
1921 for (i = 2;i < numverts;i++)
1923 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
1925 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
1929 i3 = subdivpolylookupvert(verts + i * 3);
1930 subdivpolyindex[subdivpolytriangles][0] = i1;
1931 subdivpolyindex[subdivpolytriangles][1] = i2;
1932 subdivpolyindex[subdivpolytriangles][2] = i3;
1934 subdivpolytriangles++;
1938 //Breaks a polygon up along axial 64 unit
1939 //boundaries so that turbulent and sky warps
1940 //can be done reasonably.
1941 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
1947 subdivpolytriangles = 0;
1948 subdivpolyverts = 0;
1949 SubdividePolygon(surface->num_vertices, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex));
1950 if (subdivpolytriangles < 1)
1951 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?\n");
1953 surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
1954 mesh->num_vertices = subdivpolyverts;
1955 mesh->num_triangles = subdivpolytriangles;
1956 mesh->vertex = (surfvertex_t *)(mesh + 1);
1957 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
1958 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
1960 for (i = 0;i < mesh->num_triangles;i++)
1961 for (j = 0;j < 3;j++)
1962 mesh->index[i*3+j] = subdivpolyindex[i][j];
1964 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
1966 VectorCopy(subdivpolyvert[i], v->v);
1967 v->st[0] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[0]);
1968 v->st[1] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[1]);
1973 static void Mod_Q1BSP_LoadFaces(lump_t *l)
1976 msurface_t *surface;
1977 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris;
1978 float texmins[2], texmaxs[2], val;
1980 in = (dface_t *)(mod_base + l->fileofs);
1981 if (l->filelen % sizeof(*in))
1982 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
1983 count = l->filelen / sizeof(*in);
1984 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
1985 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
1987 loadmodel->num_surfaces = count;
1991 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs);surfacenum < count;surfacenum++, in++)
1993 numedges = LittleShort(in->numedges);
1994 totalverts += numedges;
1995 totaltris += numedges - 2;
1998 // TODO: split up into multiple meshes as needed to avoid exceeding 65536
2000 loadmodel->nummeshes = 1;
2001 loadmodel->meshlist = (surfmesh_t **)Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t *));
2002 loadmodel->meshlist[0] = Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false, false);
2006 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs), surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, in++, surface++)
2008 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
2010 // FIXME: validate edges, texinfo, etc?
2011 firstedge = LittleLong(in->firstedge);
2012 numedges = LittleShort(in->numedges);
2013 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)
2014 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)\n", firstedge, numedges, loadmodel->brushq1.numsurfedges);
2015 i = LittleShort(in->texinfo);
2016 if ((unsigned int) i >= (unsigned int) loadmodel->brushq1.numtexinfo)
2017 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)\n", i, loadmodel->brushq1.numtexinfo);
2018 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + i;
2019 surface->texture = surface->lightmapinfo->texinfo->texture;
2021 planenum = LittleShort(in->planenum);
2022 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
2023 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)\n", planenum, loadmodel->brush.num_planes);
2025 //surface->flags = surface->texture->flags;
2026 //if (LittleShort(in->side))
2027 // surface->flags |= SURF_PLANEBACK;
2028 //surface->plane = loadmodel->brush.data_planes + planenum;
2030 surface->groupmesh = loadmodel->meshlist[0];
2031 surface->num_firstvertex = totalverts;
2032 surface->num_vertices = numedges;
2033 surface->num_firsttriangle = totaltris;
2034 surface->num_triangles = numedges - 2;
2035 totalverts += numedges;
2036 totaltris += numedges - 2;
2038 // convert edges back to a normal polygon
2039 for (i = 0;i < surface->num_vertices;i++)
2041 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
2044 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2046 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2047 s = DotProduct(((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2048 t = DotProduct(((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2049 (surface->groupmesh->data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
2050 (surface->groupmesh->data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
2051 (surface->groupmesh->data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
2052 (surface->groupmesh->data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
2053 (surface->groupmesh->data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
2056 for (i = 0;i < surface->num_triangles;i++)
2058 (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
2059 (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
2060 (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
2063 // compile additional data about the surface geometry
2064 Mod_BuildTextureVectorsAndNormals(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, surface->groupmesh->data_vertex3f, surface->groupmesh->data_texcoordtexture2f, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle), surface->groupmesh->data_svector3f, surface->groupmesh->data_tvector3f, surface->groupmesh->data_normal3f, true);
2065 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex));
2067 // generate surface extents information
2068 texmins[0] = texmaxs[0] = DotProduct((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2069 texmins[1] = texmaxs[1] = DotProduct((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2070 for (i = 1;i < surface->num_vertices;i++)
2072 for (j = 0;j < 2;j++)
2074 val = DotProduct((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
2075 texmins[j] = min(texmins[j], val);
2076 texmaxs[j] = max(texmaxs[j], val);
2079 for (i = 0;i < 2;i++)
2081 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
2082 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
2085 smax = surface->lightmapinfo->extents[0] >> 4;
2086 tmax = surface->lightmapinfo->extents[1] >> 4;
2087 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2088 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2091 for (i = 0;i < MAXLIGHTMAPS;i++)
2092 surface->lightmapinfo->styles[i] = in->styles[i];
2093 // force lightmap upload on first time seeing the surface
2094 surface->cached_dlight = true;
2095 surface->lightmapinfo->lightmaptexturestride = 0;
2096 surface->lightmaptexture = NULL;
2097 i = LittleLong(in->lightofs);
2100 surface->lightmapinfo->samples = NULL;
2101 // give non-lightmapped water a 1x white lightmap
2102 if ((surface->texture->basematerialflags & MATERIALFLAG_WATER) && (surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
2104 surface->lightmapinfo->samples = (qbyte *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2105 surface->lightmapinfo->styles[0] = 0;
2106 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
2109 else if (loadmodel->brush.ishlbsp) // LordHavoc: HalfLife map (bsp version 30)
2110 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + i;
2111 else // LordHavoc: white lighting (bsp version 29)
2112 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (i * 3);
2114 if (!(surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
2117 float u, v, ubase, vbase, uscale, vscale;
2119 if (ssize > 256 || tsize > 256)
2120 Host_Error("Bad surface extents");
2121 // stainmap for permanent marks on walls
2122 surface->lightmapinfo->stainsamples = (qbyte *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2124 memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
2126 if (r_miplightmaps.integer)
2128 surface->lightmapinfo->lightmaptexturestride = ssize;
2129 surface->lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, NULL, surface->lightmapinfo->lightmaptexturestride, tsize, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_MIPMAP | TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2133 surface->lightmapinfo->lightmaptexturestride = R_CompatibleFragmentWidth(ssize, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, 0);
2134 surface->lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, NULL, surface->lightmapinfo->lightmaptexturestride, tsize, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FRAGMENT | TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2136 R_FragmentLocation(surface->lightmaptexture, NULL, NULL, &ubase, &vbase, &uscale, &vscale);
2137 uscale = (uscale - ubase) / ssize;
2138 vscale = (vscale - vbase) / tsize;
2140 for (i = 0;i < surface->num_vertices;i++)
2142 u = ((DotProduct(((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3]) + 8 - surface->lightmapinfo->texturemins[0]) * (1.0 / 16.0);
2143 v = ((DotProduct(((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3]) + 8 - surface->lightmapinfo->texturemins[1]) * (1.0 / 16.0);
2144 (surface->groupmesh->data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
2145 (surface->groupmesh->data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
2146 // LordHavoc: calc lightmap data offset for vertex lighting to use
2149 (surface->groupmesh->data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
2155 static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
2158 // Host_Error("Mod_Q1BSP_LoadNodes_RecursiveSetParent: runaway recursion\n");
2159 node->parent = parent;
2162 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
2163 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
2167 static void Mod_Q1BSP_LoadNodes(lump_t *l)
2173 in = (dnode_t *)(mod_base + l->fileofs);
2174 if (l->filelen % sizeof(*in))
2175 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
2176 count = l->filelen / sizeof(*in);
2177 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2179 loadmodel->brush.data_nodes = out;
2180 loadmodel->brush.num_nodes = count;
2182 for ( i=0 ; i<count ; i++, in++, out++)
2184 for (j=0 ; j<3 ; j++)
2186 out->mins[j] = LittleShort(in->mins[j]);
2187 out->maxs[j] = LittleShort(in->maxs[j]);
2190 p = LittleLong(in->planenum);
2191 out->plane = loadmodel->brush.data_planes + p;
2193 out->firstsurface = LittleShort(in->firstface);
2194 out->numsurfaces = LittleShort(in->numfaces);
2196 for (j=0 ; j<2 ; j++)
2198 p = LittleShort(in->children[j]);
2200 out->children[j] = loadmodel->brush.data_nodes + p;
2202 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + (-1 - p));
2206 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
2209 static void Mod_Q1BSP_LoadLeafs(lump_t *l)
2215 in = (dleaf_t *)(mod_base + l->fileofs);
2216 if (l->filelen % sizeof(*in))
2217 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2218 count = l->filelen / sizeof(*in);
2219 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2221 loadmodel->brush.data_leafs = out;
2222 loadmodel->brush.num_leafs = count;
2223 // get visleafs from the submodel data
2224 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2225 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2226 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2227 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2229 for ( i=0 ; i<count ; i++, in++, out++)
2231 for (j=0 ; j<3 ; j++)
2233 out->mins[j] = LittleShort(in->mins[j]);
2234 out->maxs[j] = LittleShort(in->maxs[j]);
2237 // FIXME: this function could really benefit from some error checking
2239 out->contents = LittleLong(in->contents);
2241 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + LittleShort(in->firstmarksurface);
2242 out->numleafsurfaces = LittleShort(in->nummarksurfaces);
2243 if (out->firstleafsurface < 0 || LittleShort(in->firstmarksurface) + out->numleafsurfaces > loadmodel->brush.num_leafsurfaces)
2245 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);
2246 out->firstleafsurface = NULL;
2247 out->numleafsurfaces = 0;
2250 out->clusterindex = i - 1;
2251 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
2252 out->clusterindex = -1;
2254 p = LittleLong(in->visofs);
2255 // ignore visofs errors on leaf 0 (solid)
2256 if (p >= 0 && out->clusterindex >= 0)
2258 if (p >= loadmodel->brushq1.num_compressedpvs)
2259 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
2261 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);
2264 for (j = 0;j < 4;j++)
2265 out->ambient_sound_level[j] = in->ambient_level[j];
2267 // FIXME: Insert caustics here
2271 static void Mod_Q1BSP_LoadClipnodes(lump_t *l, hullinfo_t *hullinfo)
2273 dclipnode_t *in, *out;
2277 in = (dclipnode_t *)(mod_base + l->fileofs);
2278 if (l->filelen % sizeof(*in))
2279 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
2280 count = l->filelen / sizeof(*in);
2281 out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2283 loadmodel->brushq1.clipnodes = out;
2284 loadmodel->brushq1.numclipnodes = count;
2286 for (i = 1; i < hullinfo->numhulls; i++)
2288 hull = &loadmodel->brushq1.hulls[i];
2289 hull->clipnodes = out;
2290 hull->firstclipnode = 0;
2291 hull->lastclipnode = count-1;
2292 hull->planes = loadmodel->brush.data_planes;
2293 hull->clip_mins[0] = hullinfo->hullsizes[i][0][0];
2294 hull->clip_mins[1] = hullinfo->hullsizes[i][0][1];
2295 hull->clip_mins[2] = hullinfo->hullsizes[i][0][2];
2296 hull->clip_maxs[0] = hullinfo->hullsizes[i][1][0];
2297 hull->clip_maxs[1] = hullinfo->hullsizes[i][1][1];
2298 hull->clip_maxs[2] = hullinfo->hullsizes[i][1][2];
2299 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2302 for (i=0 ; i<count ; i++, out++, in++)
2304 out->planenum = LittleLong(in->planenum);
2305 out->children[0] = LittleShort(in->children[0]);
2306 out->children[1] = LittleShort(in->children[1]);
2307 if (out->children[0] >= count || out->children[1] >= count)
2308 Host_Error("Corrupt clipping hull(out of range child)\n");
2312 //Duplicate the drawing hull structure as a clipping hull
2313 static void Mod_Q1BSP_MakeHull0(void)
2320 hull = &loadmodel->brushq1.hulls[0];
2322 in = loadmodel->brush.data_nodes;
2323 out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(dclipnode_t));
2325 hull->clipnodes = out;
2326 hull->firstclipnode = 0;
2327 hull->lastclipnode = loadmodel->brush.num_nodes - 1;
2328 hull->planes = loadmodel->brush.data_planes;
2330 for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
2332 out->planenum = in->plane - loadmodel->brush.data_planes;
2333 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
2334 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
2338 static void Mod_Q1BSP_LoadLeaffaces(lump_t *l)
2343 in = (short *)(mod_base + l->fileofs);
2344 if (l->filelen % sizeof(*in))
2345 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
2346 loadmodel->brush.num_leafsurfaces = l->filelen / sizeof(*in);
2347 loadmodel->brush.data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
2349 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
2351 j = (unsigned) LittleShort(in[i]);
2352 if (j >= loadmodel->num_surfaces)
2353 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
2354 loadmodel->brush.data_leafsurfaces[i] = j;
2358 static void Mod_Q1BSP_LoadSurfedges(lump_t *l)
2363 in = (int *)(mod_base + l->fileofs);
2364 if (l->filelen % sizeof(*in))
2365 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
2366 loadmodel->brushq1.numsurfedges = l->filelen / sizeof(*in);
2367 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
2369 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
2370 loadmodel->brushq1.surfedges[i] = LittleLong(in[i]);
2374 static void Mod_Q1BSP_LoadPlanes(lump_t *l)
2380 in = (dplane_t *)(mod_base + l->fileofs);
2381 if (l->filelen % sizeof(*in))
2382 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
2384 loadmodel->brush.num_planes = l->filelen / sizeof(*in);
2385 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
2387 for (i = 0;i < loadmodel->brush.num_planes;i++, in++, out++)
2389 out->normal[0] = LittleFloat(in->normal[0]);
2390 out->normal[1] = LittleFloat(in->normal[1]);
2391 out->normal[2] = LittleFloat(in->normal[2]);
2392 out->dist = LittleFloat(in->dist);
2398 static void Mod_Q1BSP_LoadMapBrushes(void)
2402 int submodel, numbrushes;
2403 qboolean firstbrush;
2404 char *text, *maptext;
2405 char mapfilename[MAX_QPATH];
2406 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
2407 strlcat (mapfilename, ".map", sizeof (mapfilename));
2408 maptext = (qbyte*) FS_LoadFile(mapfilename, tempmempool, false);
2412 if (!COM_ParseToken(&data, false))
2417 if (!COM_ParseToken(&data, false))
2419 if (com_token[0] != '{')
2425 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
2428 if (!COM_ParseToken(&data, false))
2430 if (com_token[0] == '}')
2431 break; // end of entity
2432 if (com_token[0] == '{')
2439 if (submodel > loadmodel->brush.numsubmodels)
2441 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
2445 model = loadmodel->brush.submodels[submodel];
2452 if (!COM_ParseToken(&data, false))
2454 if (com_token[0] == '}')
2455 break; // end of brush
2456 // each brush face should be this format:
2457 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
2458 // FIXME: support hl .map format
2459 for (pointnum = 0;pointnum < 3;pointnum++)
2461 COM_ParseToken(&data, false);
2462 for (componentnum = 0;componentnum < 3;componentnum++)
2464 COM_ParseToken(&data, false);
2465 point[pointnum][componentnum] = atof(com_token);
2467 COM_ParseToken(&data, false);
2469 COM_ParseToken(&data, false);
2470 strlcpy(facetexture, com_token, sizeof(facetexture));
2471 COM_ParseToken(&data, false);
2472 //scroll_s = atof(com_token);
2473 COM_ParseToken(&data, false);
2474 //scroll_t = atof(com_token);
2475 COM_ParseToken(&data, false);
2476 //rotate = atof(com_token);
2477 COM_ParseToken(&data, false);
2478 //scale_s = atof(com_token);
2479 COM_ParseToken(&data, false);
2480 //scale_t = atof(com_token);
2481 TriangleNormal(point[0], point[1], point[2], planenormal);
2482 VectorNormalizeDouble(planenormal);
2483 planedist = DotProduct(point[0], planenormal);
2484 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
2494 #define MAX_PORTALPOINTS 64
2496 typedef struct portal_s
2499 mnode_t *nodes[2]; // [0] = front side of plane
2500 struct portal_s *next[2];
2502 double points[3*MAX_PORTALPOINTS];
2503 struct portal_s *chain; // all portals are linked into a list
2507 static portal_t *portalchain;
2514 static portal_t *AllocPortal(void)
2517 p = (portal_t *)Mem_Alloc(loadmodel->mempool, sizeof(portal_t));
2518 p->chain = portalchain;
2523 static void FreePortal(portal_t *p)
2528 static void Mod_Q1BSP_RecursiveRecalcNodeBBox(mnode_t *node)
2530 // process only nodes (leafs already had their box calculated)
2534 // calculate children first
2535 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[0]);
2536 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[1]);
2538 // make combined bounding box from children
2541 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
2542 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
2543 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
2544 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
2545 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
2546 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
2548 else if (((mleaf_t *)node->children[0])->clusterindex >= 0)
2550 if (((mleaf_t *)node->children[1])->clusterindex >= 0)
2552 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
2553 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
2554 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
2555 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
2556 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
2557 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
2561 node->mins[0] = node->children[0]->mins[0];
2562 node->mins[1] = node->children[0]->mins[1];
2563 node->mins[2] = node->children[0]->mins[2];
2564 node->maxs[0] = node->children[0]->maxs[0];
2565 node->maxs[1] = node->children[0]->maxs[1];
2566 node->maxs[2] = node->children[0]->maxs[2];
2571 if (((mleaf_t *)node->children[1])->clusterindex >= 0)
2573 node->mins[0] = node->children[1]->mins[0];
2574 node->mins[1] = node->children[1]->mins[1];
2575 node->mins[2] = node->children[1]->mins[2];
2576 node->maxs[0] = node->children[1]->maxs[0];
2577 node->maxs[1] = node->children[1]->maxs[1];
2578 node->maxs[2] = node->children[1]->maxs[2];
2582 node->mins[0] = 2000000000;
2583 node->mins[1] = 2000000000;
2584 node->mins[2] = 2000000000;
2585 node->maxs[0] = -2000000000;
2586 node->maxs[1] = -2000000000;
2587 node->maxs[2] = -2000000000;
2592 static void Mod_Q1BSP_FinalizePortals(void)
2594 int i, j, numportals, numpoints;
2595 portal_t *p, *pnext;
2598 mleaf_t *leaf, *endleaf;
2600 // tally up portal and point counts and recalculate bounding boxes for all
2601 // leafs (because qbsp is very sloppy)
2602 leaf = loadmodel->brush.data_leafs;
2603 endleaf = leaf + loadmodel->brush.num_leafs;
2604 for (;leaf < endleaf;leaf++)
2606 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
2607 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
2614 // note: this check must match the one below or it will usually corrupt memory
2615 // 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
2616 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2619 numpoints += p->numpoints * 2;
2623 loadmodel->brush.data_portals = (mportal_t *)Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
2624 loadmodel->brush.num_portals = numportals;
2625 loadmodel->brush.data_portalpoints = (mvertex_t *)((qbyte *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
2626 loadmodel->brush.num_portalpoints = numpoints;
2627 // clear all leaf portal chains
2628 for (i = 0;i < loadmodel->brush.num_leafs;i++)
2629 loadmodel->brush.data_leafs[i].portals = NULL;
2630 // process all portals in the global portal chain, while freeing them
2631 portal = loadmodel->brush.data_portals;
2632 point = loadmodel->brush.data_portalpoints;
2639 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1])
2641 // note: this check must match the one above or it will usually corrupt memory
2642 // 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
2643 if (((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2645 // first make the back to front portal(forward portal)
2646 portal->points = point;
2647 portal->numpoints = p->numpoints;
2648 portal->plane.dist = p->plane.dist;
2649 VectorCopy(p->plane.normal, portal->plane.normal);
2650 portal->here = (mleaf_t *)p->nodes[1];
2651 portal->past = (mleaf_t *)p->nodes[0];
2653 for (j = 0;j < portal->numpoints;j++)
2655 VectorCopy(p->points + j*3, point->position);
2658 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2659 PlaneClassify(&portal->plane);
2661 // link into leaf's portal chain
2662 portal->next = portal->here->portals;
2663 portal->here->portals = portal;
2665 // advance to next portal
2668 // then make the front to back portal(backward portal)
2669 portal->points = point;
2670 portal->numpoints = p->numpoints;
2671 portal->plane.dist = -p->plane.dist;
2672 VectorNegate(p->plane.normal, portal->plane.normal);
2673 portal->here = (mleaf_t *)p->nodes[0];
2674 portal->past = (mleaf_t *)p->nodes[1];
2676 for (j = portal->numpoints - 1;j >= 0;j--)
2678 VectorCopy(p->points + j*3, point->position);
2681 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2682 PlaneClassify(&portal->plane);
2684 // link into leaf's portal chain
2685 portal->next = portal->here->portals;
2686 portal->here->portals = portal;
2688 // advance to next portal
2691 // add the portal's polygon points to the leaf bounding boxes
2692 for (i = 0;i < 2;i++)
2694 leaf = (mleaf_t *)p->nodes[i];
2695 if (leaf->clusterindex >= 0)
2697 for (j = 0;j < p->numpoints;j++)
2699 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
2700 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
2701 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
2702 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
2703 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
2704 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
2712 // now recalculate the node bounding boxes from the leafs
2713 Mod_Q1BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes);
2721 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
2724 Host_Error("AddPortalToNodes: NULL front node");
2726 Host_Error("AddPortalToNodes: NULL back node");
2727 if (p->nodes[0] || p->nodes[1])
2728 Host_Error("AddPortalToNodes: already included");
2729 // 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
2731 p->nodes[0] = front;
2732 p->next[0] = (portal_t *)front->portals;
2733 front->portals = (mportal_t *)p;
2736 p->next[1] = (portal_t *)back->portals;
2737 back->portals = (mportal_t *)p;
2742 RemovePortalFromNode
2745 static void RemovePortalFromNodes(portal_t *portal)
2749 void **portalpointer;
2751 for (i = 0;i < 2;i++)
2753 node = portal->nodes[i];
2755 portalpointer = (void **) &node->portals;
2758 t = (portal_t *)*portalpointer;
2760 Host_Error("RemovePortalFromNodes: portal not in leaf");
2764 if (portal->nodes[0] == node)
2766 *portalpointer = portal->next[0];
2767 portal->nodes[0] = NULL;
2769 else if (portal->nodes[1] == node)
2771 *portalpointer = portal->next[1];
2772 portal->nodes[1] = NULL;
2775 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2779 if (t->nodes[0] == node)
2780 portalpointer = (void **) &t->next[0];
2781 else if (t->nodes[1] == node)
2782 portalpointer = (void **) &t->next[1];
2784 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2789 static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
2792 mnode_t *front, *back, *other_node;
2793 mplane_t clipplane, *plane;
2794 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
2795 int numfrontpoints, numbackpoints;
2796 double frontpoints[3*MAX_PORTALPOINTS], backpoints[3*MAX_PORTALPOINTS];
2798 // if a leaf, we're done
2802 plane = node->plane;
2804 front = node->children[0];
2805 back = node->children[1];
2807 Host_Error("Mod_Q1BSP_RecursiveNodePortals: corrupt node hierarchy");
2809 // create the new portal by generating a polygon for the node plane,
2810 // and clipping it by all of the other portals(which came from nodes above this one)
2811 nodeportal = AllocPortal();
2812 nodeportal->plane = *plane;
2814 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);
2815 nodeportal->numpoints = 4;
2816 side = 0; // shut up compiler warning
2817 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
2819 clipplane = portal->plane;
2820 if (portal->nodes[0] == portal->nodes[1])
2821 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(1)");
2822 if (portal->nodes[0] == node)
2824 else if (portal->nodes[1] == node)
2826 clipplane.dist = -clipplane.dist;
2827 VectorNegate(clipplane.normal, clipplane.normal);
2831 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2833 for (i = 0;i < nodeportal->numpoints*3;i++)
2834 frontpoints[i] = nodeportal->points[i];
2835 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);
2836 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
2840 if (nodeportal->numpoints < 3)
2842 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
2843 nodeportal->numpoints = 0;
2845 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
2847 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
2848 nodeportal->numpoints = 0;
2851 AddPortalToNodes(nodeportal, front, back);
2853 // split the portals of this node along this node's plane and assign them to the children of this node
2854 // (migrating the portals downward through the tree)
2855 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
2857 if (portal->nodes[0] == portal->nodes[1])
2858 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(2)");
2859 if (portal->nodes[0] == node)
2861 else if (portal->nodes[1] == node)
2864 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2865 nextportal = portal->next[side];
2866 if (!portal->numpoints)
2869 other_node = portal->nodes[!side];
2870 RemovePortalFromNodes(portal);
2872 // cut the portal into two portals, one on each side of the node plane
2873 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);
2875 if (!numfrontpoints)
2878 AddPortalToNodes(portal, back, other_node);
2880 AddPortalToNodes(portal, other_node, back);
2886 AddPortalToNodes(portal, front, other_node);
2888 AddPortalToNodes(portal, other_node, front);
2892 // the portal is split
2893 splitportal = AllocPortal();
2894 temp = splitportal->chain;
2895 *splitportal = *portal;
2896 splitportal->chain = temp;
2897 for (i = 0;i < numbackpoints*3;i++)
2898 splitportal->points[i] = backpoints[i];
2899 splitportal->numpoints = numbackpoints;
2900 for (i = 0;i < numfrontpoints*3;i++)
2901 portal->points[i] = frontpoints[i];
2902 portal->numpoints = numfrontpoints;
2906 AddPortalToNodes(portal, front, other_node);
2907 AddPortalToNodes(splitportal, back, other_node);
2911 AddPortalToNodes(portal, other_node, front);
2912 AddPortalToNodes(splitportal, other_node, back);
2916 Mod_Q1BSP_RecursiveNodePortals(front);
2917 Mod_Q1BSP_RecursiveNodePortals(back);
2920 static void Mod_Q1BSP_MakePortals(void)
2923 Mod_Q1BSP_RecursiveNodePortals(loadmodel->brush.data_nodes);
2924 Mod_Q1BSP_FinalizePortals();
2927 static void Mod_Q1BSP_BuildLightmapUpdateChains(mempool_t *mempool, model_t *model)
2929 int i, j, stylecounts[256], totalcount, remapstyles[256];
2930 msurface_t *surface;
2931 memset(stylecounts, 0, sizeof(stylecounts));
2932 for (i = 0;i < model->nummodelsurfaces;i++)
2934 surface = model->data_surfaces + model->firstmodelsurface + i;
2935 for (j = 0;j < MAXLIGHTMAPS;j++)
2936 stylecounts[surface->lightmapinfo->styles[j]]++;
2939 model->brushq1.light_styles = 0;
2940 for (i = 0;i < 255;i++)
2944 remapstyles[i] = model->brushq1.light_styles++;
2945 totalcount += stylecounts[i] + 1;
2950 model->brushq1.light_style = (qbyte *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(qbyte));
2951 model->brushq1.light_stylevalue = (int *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(int));
2952 model->brushq1.light_styleupdatechains = (msurface_t ***)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(msurface_t **));
2953 model->brushq1.light_styleupdatechainsbuffer = (msurface_t **)Mem_Alloc(mempool, totalcount * sizeof(msurface_t *));
2954 model->brushq1.light_styles = 0;
2955 for (i = 0;i < 255;i++)
2957 model->brushq1.light_style[model->brushq1.light_styles++] = i;
2959 for (i = 0;i < model->brushq1.light_styles;i++)
2961 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
2962 j += stylecounts[model->brushq1.light_style[i]] + 1;
2964 for (i = 0;i < model->nummodelsurfaces;i++)
2966 surface = model->data_surfaces + model->firstmodelsurface + i;
2967 for (j = 0;j < MAXLIGHTMAPS;j++)
2968 if (surface->lightmapinfo->styles[j] != 255)
2969 *model->brushq1.light_styleupdatechains[remapstyles[surface->lightmapinfo->styles[j]]]++ = surface;
2972 for (i = 0;i < model->brushq1.light_styles;i++)
2974 *model->brushq1.light_styleupdatechains[i] = NULL;
2975 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
2976 j += stylecounts[model->brushq1.light_style[i]] + 1;
2980 //Returns PVS data for a given point
2981 //(note: can return NULL)
2982 static qbyte *Mod_Q1BSP_GetPVS(model_t *model, const vec3_t p)
2985 node = model->brush.data_nodes;
2987 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
2988 if (((mleaf_t *)node)->clusterindex >= 0)
2989 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
2994 static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, qbyte *pvsbuffer, int pvsbytes, mnode_t *node)
2998 float d = PlaneDiff(org, node->plane);
3000 node = node->children[0];
3001 else if (d < -radius)
3002 node = node->children[1];
3005 // go down both sides
3006 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
3007 node = node->children[1];
3010 // if this leaf is in a cluster, accumulate the pvs bits
3011 if (((mleaf_t *)node)->clusterindex >= 0)
3014 qbyte *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3015 for (i = 0;i < pvsbytes;i++)
3016 pvsbuffer[i] |= pvs[i];
3020 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
3021 //of the given point.
3022 static int Mod_Q1BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, qbyte *pvsbuffer, int pvsbufferlength)
3024 int bytes = model->brush.num_pvsclusterbytes;
3025 bytes = min(bytes, pvsbufferlength);
3026 if (r_novis.integer || !model->brush.num_pvsclusters || !Mod_Q1BSP_GetPVS(model, org))
3028 memset(pvsbuffer, 0xFF, bytes);
3031 memset(pvsbuffer, 0, bytes);
3032 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes);
3036 static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
3041 VectorSubtract(inmaxs, inmins, size);
3042 if (cmodel->brush.ismcbsp)
3045 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3046 else if (size[2] < 48) // pick the nearest of 40 or 56
3047 hull = &cmodel->brushq1.hulls[2]; // 16x16x40
3049 hull = &cmodel->brushq1.hulls[1]; // 16x16x56
3051 else if (cmodel->brush.ishlbsp)
3054 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3055 else if (size[0] <= 32)
3057 if (size[2] < 54) // pick the nearest of 36 or 72
3058 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
3060 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
3063 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
3068 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3069 else if (size[0] <= 32)
3070 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
3072 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
3074 VectorCopy(inmins, outmins);
3075 VectorAdd(inmins, hull->clip_size, outmaxs);
3078 void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
3083 mempool_t *mainmempool;
3084 float dist, modelyawradius, modelradius, *vec;
3085 msurface_t *surface;
3086 int numshadowmeshtriangles;
3088 hullinfo_t hullinfo;
3090 mod->type = mod_brushq1;
3092 if (!memcmp (buffer, "MCBSPpad", 8))
3096 mod->brush.ismcbsp = true;
3097 mod->brush.ishlbsp = false;
3099 mod_base = (qbyte*)buffer;
3103 i = SB_ReadInt (&index);
3104 if (i != MCBSPVERSION)
3105 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i)", mod->name, i, MCBSPVERSION);
3108 hullinfo.numhulls = LittleLong(*(int*)index); index += 4;
3109 hullinfo.filehulls = hullinfo.numhulls;
3110 VectorClear (hullinfo.hullsizes[0][0]);
3111 VectorClear (hullinfo.hullsizes[0][1]);
3112 for (i = 1; i < hullinfo.numhulls; i++)
3114 hullinfo.hullsizes[i][0][0] = SB_ReadFloat (&index);
3115 hullinfo.hullsizes[i][0][1] = SB_ReadFloat (&index);
3116 hullinfo.hullsizes[i][0][2] = SB_ReadFloat (&index);
3117 hullinfo.hullsizes[i][1][0] = SB_ReadFloat (&index);
3118 hullinfo.hullsizes[i][1][1] = SB_ReadFloat (&index);
3119 hullinfo.hullsizes[i][1][2] = SB_ReadFloat (&index);
3123 _header.version = 0;
3124 for (i = 0; i < HEADER_LUMPS; i++)
3126 _header.lumps[i].fileofs = SB_ReadInt (&index);
3127 _header.lumps[i].filelen = SB_ReadInt (&index);
3134 header = (dheader_t *)buffer;
3136 i = LittleLong(header->version);
3137 if (i != BSPVERSION && i != 30)
3138 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i(Quake) or 30(HalfLife)", mod->name, i, BSPVERSION);
3139 mod->brush.ishlbsp = i == 30;
3140 mod->brush.ismcbsp = false;
3142 // fill in hull info
3143 VectorClear (hullinfo.hullsizes[0][0]);
3144 VectorClear (hullinfo.hullsizes[0][1]);
3145 if (mod->brush.ishlbsp)
3147 hullinfo.numhulls = 4;
3148 hullinfo.filehulls = 4;
3149 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
3150 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
3151 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
3152 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
3153 VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
3154 VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
3158 hullinfo.numhulls = 3;
3159 hullinfo.filehulls = 4;
3160 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
3161 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
3162 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
3163 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
3167 mod_base = (qbyte*)buffer;
3168 for (i = 0; i < HEADER_LUMPS; i++)
3170 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
3171 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
3175 mod->soundfromcenter = true;
3176 mod->TraceBox = Mod_Q1BSP_TraceBox;
3177 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3178 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3179 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
3180 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
3181 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
3182 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
3183 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
3184 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
3185 mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
3186 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
3187 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3188 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3189 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
3191 if (loadmodel->isworldmodel)
3193 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3194 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3199 // store which lightmap format to use
3200 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3202 Mod_Q1BSP_LoadEntities(&header->lumps[LUMP_ENTITIES]);
3203 Mod_Q1BSP_LoadVertexes(&header->lumps[LUMP_VERTEXES]);
3204 Mod_Q1BSP_LoadEdges(&header->lumps[LUMP_EDGES]);
3205 Mod_Q1BSP_LoadSurfedges(&header->lumps[LUMP_SURFEDGES]);
3206 Mod_Q1BSP_LoadTextures(&header->lumps[LUMP_TEXTURES]);
3207 Mod_Q1BSP_LoadLighting(&header->lumps[LUMP_LIGHTING]);
3208 Mod_Q1BSP_LoadPlanes(&header->lumps[LUMP_PLANES]);
3209 Mod_Q1BSP_LoadTexinfo(&header->lumps[LUMP_TEXINFO]);
3210 Mod_Q1BSP_LoadFaces(&header->lumps[LUMP_FACES]);
3211 Mod_Q1BSP_LoadLeaffaces(&header->lumps[LUMP_MARKSURFACES]);
3212 Mod_Q1BSP_LoadVisibility(&header->lumps[LUMP_VISIBILITY]);
3213 // load submodels before leafs because they contain the number of vis leafs
3214 Mod_Q1BSP_LoadSubmodels(&header->lumps[LUMP_MODELS], &hullinfo);
3215 Mod_Q1BSP_LoadLeafs(&header->lumps[LUMP_LEAFS]);
3216 Mod_Q1BSP_LoadNodes(&header->lumps[LUMP_NODES]);
3217 Mod_Q1BSP_LoadClipnodes(&header->lumps[LUMP_CLIPNODES], &hullinfo);
3219 if (!mod->brushq1.lightdata)
3220 mod->brush.LightPoint = NULL;
3222 if (mod->brushq1.data_compressedpvs)
3223 Mem_Free(mod->brushq1.data_compressedpvs);
3224 mod->brushq1.data_compressedpvs = NULL;
3225 mod->brushq1.num_compressedpvs = 0;
3227 Mod_Q1BSP_MakeHull0();
3228 Mod_Q1BSP_MakePortals();
3230 mod->numframes = 2; // regular and alternate animation
3233 mainmempool = mod->mempool;
3235 Mod_Q1BSP_LoadLightList();
3237 // make a single combined shadow mesh to allow optimized shadow volume creation
3238 numshadowmeshtriangles = 0;
3239 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3241 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
3242 numshadowmeshtriangles += surface->num_triangles;
3244 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
3245 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3246 Mod_ShadowMesh_AddMesh(loadmodel->mempool, loadmodel->brush.shadowmesh, NULL, NULL, NULL, surface->groupmesh->data_vertex3f, NULL, NULL, NULL, NULL, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
3247 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
3248 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
3250 if (loadmodel->brush.numsubmodels)
3251 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
3253 if (loadmodel->isworldmodel)
3255 // clear out any stale submodels or worldmodels lying around
3256 // if we did this clear before now, an error might abort loading and
3257 // leave things in a bad state
3258 Mod_RemoveStaleWorldModels(loadmodel);
3261 // LordHavoc: to clear the fog around the original quake submodel code, I
3263 // first of all, some background info on the submodels:
3264 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
3265 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
3266 // now the weird for loop itself:
3267 // the loop functions in an odd way, on each iteration it sets up the
3268 // current 'mod' model (which despite the confusing code IS the model of
3269 // the number i), at the end of the loop it duplicates the model to become
3270 // the next submodel, and loops back to set up the new submodel.
3272 // LordHavoc: now the explanation of my sane way (which works identically):
3273 // set up the world model, then on each submodel copy from the world model
3274 // and set up the submodel with the respective model info.
3275 for (i = 0;i < mod->brush.numsubmodels;i++)
3277 // LordHavoc: this code was originally at the end of this loop, but
3278 // has been transformed to something more readable at the start here.
3283 // LordHavoc: only register submodels if it is the world
3284 // (prevents external bsp models from replacing world submodels with
3286 if (!loadmodel->isworldmodel)
3288 // duplicate the basic information
3289 sprintf(name, "*%i", i);
3290 mod = Mod_FindName(name);
3291 // copy the base model to this one
3293 // rename the clone back to its proper name
3294 strcpy(mod->name, name);
3295 // textures and memory belong to the main model
3296 mod->texturepool = NULL;
3297 mod->mempool = NULL;
3300 mod->brush.submodel = i;
3302 if (loadmodel->brush.submodels)
3303 loadmodel->brush.submodels[i] = mod;
3305 bm = &mod->brushq1.submodels[i];
3307 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
3308 for (j=1 ; j<MAX_MAP_HULLS ; j++)
3310 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
3311 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
3314 mod->firstmodelsurface = bm->firstface;
3315 mod->nummodelsurfaces = bm->numfaces;
3317 // make the model surface list (used by shadowing/lighting)
3318 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
3319 for (j = 0;j < mod->nummodelsurfaces;j++)
3320 mod->surfacelist[j] = mod->firstmodelsurface + j;
3322 // this gets altered below if sky is used
3323 mod->DrawSky = NULL;
3324 mod->Draw = R_Q1BSP_Draw;
3325 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
3326 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
3327 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
3328 mod->DrawLight = R_Q1BSP_DrawLight;
3331 mod->brush.GetPVS = NULL;
3332 mod->brush.FatPVS = NULL;
3333 mod->brush.BoxTouchingPVS = NULL;
3334 mod->brush.BoxTouchingLeafPVS = NULL;
3335 mod->brush.BoxTouchingVisibleLeafs = NULL;
3336 mod->brush.FindBoxClusters = NULL;
3337 mod->brush.LightPoint = NULL;
3338 mod->brush.AmbientSoundLevelsForPoint = NULL;
3340 Mod_Q1BSP_BuildLightmapUpdateChains(loadmodel->mempool, mod);
3341 if (mod->nummodelsurfaces)
3343 // LordHavoc: calculate bmodel bounding box rather than trusting what it says
3344 mod->normalmins[0] = mod->normalmins[1] = mod->normalmins[2] = 1000000000.0f;
3345 mod->normalmaxs[0] = mod->normalmaxs[1] = mod->normalmaxs[2] = -1000000000.0f;
3348 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
3350 // we only need to have a drawsky function if it is used(usually only on world model)
3351 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
3352 mod->DrawSky = R_Q1BSP_DrawSky;
3353 // calculate bounding shapes
3354 for (k = 0, vec = (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex);k < surface->num_vertices;k++, vec += 3)
3356 if (mod->normalmins[0] > vec[0]) mod->normalmins[0] = vec[0];
3357 if (mod->normalmins[1] > vec[1]) mod->normalmins[1] = vec[1];
3358 if (mod->normalmins[2] > vec[2]) mod->normalmins[2] = vec[2];
3359 if (mod->normalmaxs[0] < vec[0]) mod->normalmaxs[0] = vec[0];
3360 if (mod->normalmaxs[1] < vec[1]) mod->normalmaxs[1] = vec[1];
3361 if (mod->normalmaxs[2] < vec[2]) mod->normalmaxs[2] = vec[2];
3362 dist = vec[0]*vec[0]+vec[1]*vec[1];
3363 if (modelyawradius < dist)
3364 modelyawradius = dist;
3365 dist += vec[2]*vec[2];
3366 if (modelradius < dist)
3370 modelyawradius = sqrt(modelyawradius);
3371 modelradius = sqrt(modelradius);
3372 mod->yawmins[0] = mod->yawmins[1] = - (mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius);
3373 mod->yawmins[2] = mod->normalmins[2];
3374 mod->yawmaxs[2] = mod->normalmaxs[2];
3375 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
3376 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
3377 mod->radius = modelradius;
3378 mod->radius2 = modelradius * modelradius;
3382 // LordHavoc: empty submodel(lacrima.bsp has such a glitch)
3383 Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
3385 //mod->brushq1.num_visleafs = bm->visleafs;
3388 Mod_Q1BSP_LoadMapBrushes();
3390 //Mod_Q1BSP_ProcessLightList();
3392 if (developer.integer)
3393 Con_Printf("Some stats for q1bsp model \"%s\": %i faces, %i nodes, %i leafs, %i visleafs, %i visleafportals\n", loadmodel->name, loadmodel->num_surfaces, loadmodel->brush.num_nodes, loadmodel->brush.num_leafs, mod->brush.num_pvsclusters, loadmodel->brush.num_portals);
3396 static void Mod_Q2BSP_LoadEntities(lump_t *l)
3400 static void Mod_Q2BSP_LoadPlanes(lump_t *l)
3407 in = (void *)(mod_base + l->fileofs);
3408 if (l->filelen % sizeof(*in))
3409 Host_Error("Mod_Q2BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
3410 count = l->filelen / sizeof(*in);
3411 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3414 loadmodel->num = count;
3416 for (i = 0;i < count;i++, in++, out++)
3422 static void Mod_Q2BSP_LoadVertices(lump_t *l)
3429 in = (void *)(mod_base + l->fileofs);
3430 if (l->filelen % sizeof(*in))
3431 Host_Error("Mod_Q2BSP_LoadVertices: funny lump size in %s",loadmodel->name);
3432 count = l->filelen / sizeof(*in);
3433 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3436 loadmodel->num = count;
3438 for (i = 0;i < count;i++, in++, out++)
3444 static void Mod_Q2BSP_LoadVisibility(lump_t *l)
3451 in = (void *)(mod_base + l->fileofs);
3452 if (l->filelen % sizeof(*in))
3453 Host_Error("Mod_Q2BSP_LoadVisibility: funny lump size in %s",loadmodel->name);
3454 count = l->filelen / sizeof(*in);
3455 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3458 loadmodel->num = count;
3460 for (i = 0;i < count;i++, in++, out++)
3466 static void Mod_Q2BSP_LoadNodes(lump_t *l)
3473 in = (void *)(mod_base + l->fileofs);
3474 if (l->filelen % sizeof(*in))
3475 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
3476 count = l->filelen / sizeof(*in);
3477 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3480 loadmodel->num = count;
3482 for (i = 0;i < count;i++, in++, out++)
3488 static void Mod_Q2BSP_LoadTexInfo(lump_t *l)
3495 in = (void *)(mod_base + l->fileofs);
3496 if (l->filelen % sizeof(*in))
3497 Host_Error("Mod_Q2BSP_LoadTexInfo: funny lump size in %s",loadmodel->name);
3498 count = l->filelen / sizeof(*in);
3499 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3502 loadmodel->num = count;
3504 for (i = 0;i < count;i++, in++, out++)
3510 static void Mod_Q2BSP_LoadFaces(lump_t *l)
3517 in = (void *)(mod_base + l->fileofs);
3518 if (l->filelen % sizeof(*in))
3519 Host_Error("Mod_Q2BSP_LoadFaces: funny lump size in %s",loadmodel->name);
3520 count = l->filelen / sizeof(*in);
3521 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3524 loadmodel->num = count;
3526 for (i = 0;i < count;i++, in++, out++)
3532 static void Mod_Q2BSP_LoadLighting(lump_t *l)
3539 in = (void *)(mod_base + l->fileofs);
3540 if (l->filelen % sizeof(*in))
3541 Host_Error("Mod_Q2BSP_LoadLighting: funny lump size in %s",loadmodel->name);
3542 count = l->filelen / sizeof(*in);
3543 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3546 loadmodel->num = count;
3548 for (i = 0;i < count;i++, in++, out++)
3554 static void Mod_Q2BSP_LoadLeafs(lump_t *l)
3561 in = (void *)(mod_base + l->fileofs);
3562 if (l->filelen % sizeof(*in))
3563 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
3564 count = l->filelen / sizeof(*in);
3565 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3568 loadmodel->num = count;
3570 for (i = 0;i < count;i++, in++, out++)
3576 static void Mod_Q2BSP_LoadLeafFaces(lump_t *l)
3583 in = (void *)(mod_base + l->fileofs);
3584 if (l->filelen % sizeof(*in))
3585 Host_Error("Mod_Q2BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
3586 count = l->filelen / sizeof(*in);
3587 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3590 loadmodel->num = count;
3592 for (i = 0;i < count;i++, in++, out++)
3598 static void Mod_Q2BSP_LoadLeafBrushes(lump_t *l)
3605 in = (void *)(mod_base + l->fileofs);
3606 if (l->filelen % sizeof(*in))
3607 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
3608 count = l->filelen / sizeof(*in);
3609 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3612 loadmodel->num = count;
3614 for (i = 0;i < count;i++, in++, out++)
3620 static void Mod_Q2BSP_LoadEdges(lump_t *l)
3627 in = (void *)(mod_base + l->fileofs);
3628 if (l->filelen % sizeof(*in))
3629 Host_Error("Mod_Q2BSP_LoadEdges: funny lump size in %s",loadmodel->name);
3630 count = l->filelen / sizeof(*in);
3631 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3634 loadmodel->num = count;
3636 for (i = 0;i < count;i++, in++, out++)
3642 static void Mod_Q2BSP_LoadSurfEdges(lump_t *l)
3649 in = (void *)(mod_base + l->fileofs);
3650 if (l->filelen % sizeof(*in))
3651 Host_Error("Mod_Q2BSP_LoadSurfEdges: funny lump size in %s",loadmodel->name);
3652 count = l->filelen / sizeof(*in);
3653 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3656 loadmodel->num = count;
3658 for (i = 0;i < count;i++, in++, out++)
3664 static void Mod_Q2BSP_LoadBrushes(lump_t *l)
3671 in = (void *)(mod_base + l->fileofs);
3672 if (l->filelen % sizeof(*in))
3673 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
3674 count = l->filelen / sizeof(*in);
3675 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3678 loadmodel->num = count;
3680 for (i = 0;i < count;i++, in++, out++)
3686 static void Mod_Q2BSP_LoadBrushSides(lump_t *l)
3693 in = (void *)(mod_base + l->fileofs);
3694 if (l->filelen % sizeof(*in))
3695 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
3696 count = l->filelen / sizeof(*in);
3697 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3700 loadmodel->num = count;
3702 for (i = 0;i < count;i++, in++, out++)
3708 static void Mod_Q2BSP_LoadAreas(lump_t *l)
3715 in = (void *)(mod_base + l->fileofs);
3716 if (l->filelen % sizeof(*in))
3717 Host_Error("Mod_Q2BSP_LoadAreas: funny lump size in %s",loadmodel->name);
3718 count = l->filelen / sizeof(*in);
3719 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3722 loadmodel->num = count;
3724 for (i = 0;i < count;i++, in++, out++)
3730 static void Mod_Q2BSP_LoadAreaPortals(lump_t *l)
3737 in = (void *)(mod_base + l->fileofs);
3738 if (l->filelen % sizeof(*in))
3739 Host_Error("Mod_Q2BSP_LoadAreaPortals: funny lump size in %s",loadmodel->name);
3740 count = l->filelen / sizeof(*in);
3741 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3744 loadmodel->num = count;
3746 for (i = 0;i < count;i++, in++, out++)
3752 static void Mod_Q2BSP_LoadModels(lump_t *l)
3759 in = (void *)(mod_base + l->fileofs);
3760 if (l->filelen % sizeof(*in))
3761 Host_Error("Mod_Q2BSP_LoadModels: funny lump size in %s",loadmodel->name);
3762 count = l->filelen / sizeof(*in);
3763 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3766 loadmodel->num = count;
3768 for (i = 0;i < count;i++, in++, out++)
3774 void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
3777 q2dheader_t *header;
3779 Host_Error("Mod_Q2BSP_Load: not yet implemented\n");
3781 mod->type = mod_brushq2;
3783 header = (q2dheader_t *)buffer;
3785 i = LittleLong(header->version);
3786 if (i != Q2BSPVERSION)
3787 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
3788 mod->brush.ishlbsp = false;
3789 mod->brush.ismcbsp = false;
3790 if (loadmodel->isworldmodel)
3792 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3793 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3796 mod_base = (qbyte *)header;
3798 // swap all the lumps
3799 for (i = 0;i < (int) sizeof(*header) / 4;i++)
3800 ((int *)header)[i] = LittleLong(((int *)header)[i]);
3802 // store which lightmap format to use
3803 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3805 Mod_Q2BSP_LoadEntities(&header->lumps[Q2LUMP_ENTITIES]);
3806 Mod_Q2BSP_LoadPlanes(&header->lumps[Q2LUMP_PLANES]);
3807 Mod_Q2BSP_LoadVertices(&header->lumps[Q2LUMP_VERTEXES]);
3808 Mod_Q2BSP_LoadVisibility(&header->lumps[Q2LUMP_VISIBILITY]);
3809 Mod_Q2BSP_LoadNodes(&header->lumps[Q2LUMP_NODES]);
3810 Mod_Q2BSP_LoadTexInfo(&header->lumps[Q2LUMP_TEXINFO]);
3811 Mod_Q2BSP_LoadFaces(&header->lumps[Q2LUMP_FACES]);
3812 Mod_Q2BSP_LoadLighting(&header->lumps[Q2LUMP_LIGHTING]);
3813 Mod_Q2BSP_LoadLeafs(&header->lumps[Q2LUMP_LEAFS]);
3814 Mod_Q2BSP_LoadLeafFaces(&header->lumps[Q2LUMP_LEAFFACES]);
3815 Mod_Q2BSP_LoadLeafBrushes(&header->lumps[Q2LUMP_LEAFBRUSHES]);
3816 Mod_Q2BSP_LoadEdges(&header->lumps[Q2LUMP_EDGES]);
3817 Mod_Q2BSP_LoadSurfEdges(&header->lumps[Q2LUMP_SURFEDGES]);
3818 Mod_Q2BSP_LoadBrushes(&header->lumps[Q2LUMP_BRUSHES]);
3819 Mod_Q2BSP_LoadBrushSides(&header->lumps[Q2LUMP_BRUSHSIDES]);
3820 Mod_Q2BSP_LoadAreas(&header->lumps[Q2LUMP_AREAS]);
3821 Mod_Q2BSP_LoadAreaPortals(&header->lumps[Q2LUMP_AREAPORTALS]);
3822 // LordHavoc: must go last because this makes the submodels
3823 Mod_Q2BSP_LoadModels(&header->lumps[Q2LUMP_MODELS]);
3826 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents);
3827 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents);
3829 static void Mod_Q3BSP_LoadEntities(lump_t *l)
3832 char key[128], value[4096];
3834 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
3835 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
3836 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
3839 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
3840 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
3841 data = loadmodel->brush.entities;
3842 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
3843 if (data && COM_ParseToken(&data, false) && com_token[0] == '{')
3847 if (!COM_ParseToken(&data, false))
3849 if (com_token[0] == '}')
3850 break; // end of worldspawn
3851 if (com_token[0] == '_')
3852 strcpy(key, com_token + 1);
3854 strcpy(key, com_token);
3855 while (key[strlen(key)-1] == ' ') // remove trailing spaces
3856 key[strlen(key)-1] = 0;
3857 if (!COM_ParseToken(&data, false))
3859 strcpy(value, com_token);
3860 if (!strcmp("gridsize", key))
3862 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
3863 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
3869 static void Mod_Q3BSP_LoadTextures(lump_t *l)
3878 int flags, flags2, numparameters, passnumber;
3879 char shadername[Q3PATHLENGTH];
3880 char sky[Q3PATHLENGTH];
3881 char firstpasstexturename[Q3PATHLENGTH];
3882 char parameter[4][Q3PATHLENGTH];
3884 in = (q3dtexture_t *)(mod_base + l->fileofs);
3885 if (l->filelen % sizeof(*in))
3886 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
3887 count = l->filelen / sizeof(*in);
3888 out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3890 loadmodel->data_textures = out;
3891 loadmodel->num_textures = count;
3893 for (i = 0;i < count;i++, in++, out++)
3895 strlcpy (out->name, in->name, sizeof (out->name));
3896 out->surfaceflags = LittleLong(in->surfaceflags);
3897 out->supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in->contents));
3898 out->surfaceparms = -1;
3901 // do a quick parse of shader files to get surfaceparms
3902 if ((search = FS_Search("scripts/*.shader", true, false)))
3904 for (i = 0;i < search->numfilenames;i++)
3906 if ((f = (char *)FS_LoadFile(search->filenames[i], tempmempool, false)))
3909 while (COM_ParseToken(&text, false))
3911 strlcpy (shadername, com_token, sizeof (shadername));
3916 firstpasstexturename[0] = 0;
3917 if (COM_ParseToken(&text, false) && !strcasecmp(com_token, "{"))
3919 while (COM_ParseToken(&text, false))
3921 if (!strcasecmp(com_token, "}"))
3923 else if (!strcasecmp(com_token, "{"))
3925 while (COM_ParseToken(&text, false))
3927 if (!strcasecmp(com_token, "}"))
3929 if (!strcasecmp(com_token, "\n"))
3932 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
3936 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
3937 numparameters = j + 1;
3939 if (!COM_ParseToken(&text, true))
3942 if (developer.integer >= 2)
3944 Con_Printf("%s %i: ", shadername, passnumber);
3945 for (j = 0;j < numparameters;j++)
3946 Con_Printf(" %s", parameter[j]);
3949 if (passnumber == 0 && numparameters >= 1)
3951 if (!strcasecmp(parameter[0], "blendfunc") && (flags & Q3SURFACEPARM_TRANS))
3953 if (numparameters == 2 && !strcasecmp(parameter[1], "add"))
3954 flags2 |= Q3TEXTUREFLAG_ADDITIVE;
3955 else if (numparameters == 3 && !strcasecmp(parameter[1], "gl_one") && !strcasecmp(parameter[2], "gl_one"))
3956 flags2 |= Q3TEXTUREFLAG_ADDITIVE;
3957 else if (numparameters == 3 && !strcasecmp(parameter[1], "gl_src_alpha") && !strcasecmp(parameter[2], "gl_one"))
3958 flags2 |= Q3TEXTUREFLAG_ADDITIVE;
3960 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
3961 strlcpy(firstpasstexturename, parameter[1], sizeof(firstpasstexturename));
3962 else if (numparameters >= 3 && !strcasecmp(parameter[0], "animmap"))
3963 strlcpy(firstpasstexturename, parameter[2], sizeof(firstpasstexturename));
3964 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
3965 flags2 |= Q3TEXTUREFLAG_ALPHATEST;
3967 // break out a level if it was }
3968 if (!strcasecmp(com_token, "}"))
3975 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
3979 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
3980 numparameters = j + 1;
3982 if (!COM_ParseToken(&text, true))
3985 if (i == 0 && !strcasecmp(com_token, "}"))
3987 if (developer.integer >= 2)
3989 Con_Printf("%s: ", shadername);
3990 for (j = 0;j < numparameters;j++)
3991 Con_Printf(" %s", parameter[j]);
3994 if (numparameters < 1)
3996 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
3998 if (!strcasecmp(parameter[1], "alphashadow"))
3999 flags |= Q3SURFACEPARM_ALPHASHADOW;
4000 else if (!strcasecmp(parameter[1], "areaportal"))
4001 flags |= Q3SURFACEPARM_AREAPORTAL;
4002 else if (!strcasecmp(parameter[1], "clusterportal"))
4003 flags |= Q3SURFACEPARM_CLUSTERPORTAL;
4004 else if (!strcasecmp(parameter[1], "detail"))
4005 flags |= Q3SURFACEPARM_DETAIL;
4006 else if (!strcasecmp(parameter[1], "donotenter"))
4007 flags |= Q3SURFACEPARM_DONOTENTER;
4008 else if (!strcasecmp(parameter[1], "fog"))
4009 flags |= Q3SURFACEPARM_FOG;
4010 else if (!strcasecmp(parameter[1], "lava"))
4011 flags |= Q3SURFACEPARM_LAVA;
4012 else if (!strcasecmp(parameter[1], "lightfilter"))
4013 flags |= Q3SURFACEPARM_LIGHTFILTER;
4014 else if (!strcasecmp(parameter[1], "metalsteps"))
4015 flags |= Q3SURFACEPARM_METALSTEPS;
4016 else if (!strcasecmp(parameter[1], "nodamage"))
4017 flags |= Q3SURFACEPARM_NODAMAGE;
4018 else if (!strcasecmp(parameter[1], "nodlight"))
4019 flags |= Q3SURFACEPARM_NODLIGHT;
4020 else if (!strcasecmp(parameter[1], "nodraw"))
4021 flags |= Q3SURFACEPARM_NODRAW;
4022 else if (!strcasecmp(parameter[1], "nodrop"))
4023 flags |= Q3SURFACEPARM_NODROP;
4024 else if (!strcasecmp(parameter[1], "noimpact"))
4025 flags |= Q3SURFACEPARM_NOIMPACT;
4026 else if (!strcasecmp(parameter[1], "nolightmap"))
4027 flags |= Q3SURFACEPARM_NOLIGHTMAP;
4028 else if (!strcasecmp(parameter[1], "nomarks"))
4029 flags |= Q3SURFACEPARM_NOMARKS;
4030 else if (!strcasecmp(parameter[1], "nomipmaps"))
4031 flags |= Q3SURFACEPARM_NOMIPMAPS;
4032 else if (!strcasecmp(parameter[1], "nonsolid"))
4033 flags |= Q3SURFACEPARM_NONSOLID;
4034 else if (!strcasecmp(parameter[1], "origin"))
4035 flags |= Q3SURFACEPARM_ORIGIN;
4036 else if (!strcasecmp(parameter[1], "playerclip"))
4037 flags |= Q3SURFACEPARM_PLAYERCLIP;
4038 else if (!strcasecmp(parameter[1], "sky"))
4039 flags |= Q3SURFACEPARM_SKY;
4040 else if (!strcasecmp(parameter[1], "slick"))
4041 flags |= Q3SURFACEPARM_SLICK;
4042 else if (!strcasecmp(parameter[1], "slime"))
4043 flags |= Q3SURFACEPARM_SLIME;
4044 else if (!strcasecmp(parameter[1], "structural"))
4045 flags |= Q3SURFACEPARM_STRUCTURAL;
4046 else if (!strcasecmp(parameter[1], "trans"))
4047 flags |= Q3SURFACEPARM_TRANS;
4048 else if (!strcasecmp(parameter[1], "water"))
4049 flags |= Q3SURFACEPARM_WATER;
4050 else if (!strcasecmp(parameter[1], "pointlight"))
4051 flags |= Q3SURFACEPARM_POINTLIGHT;
4053 Con_Printf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[i], parameter[1]);
4055 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
4056 strlcpy(sky, parameter[1], sizeof(sky));
4057 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
4059 if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
4060 strlcpy(sky, parameter[1], sizeof(sky));
4062 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
4064 if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
4065 flags2 |= Q3TEXTUREFLAG_TWOSIDED;
4067 else if (!strcasecmp(parameter[0], "nomipmaps"))
4068 flags2 |= Q3TEXTUREFLAG_NOMIPMAPS;
4069 else if (!strcasecmp(parameter[0], "nopicmip"))
4070 flags2 |= Q3TEXTUREFLAG_NOPICMIP;
4071 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
4073 if (!strcasecmp(parameter[1], "autosprite") && numparameters == 2)
4074 flags2 |= Q3TEXTUREFLAG_AUTOSPRITE;
4075 if (!strcasecmp(parameter[1], "autosprite2") && numparameters == 2)
4076 flags2 |= Q3TEXTUREFLAG_AUTOSPRITE2;
4079 // add shader to list (shadername and flags)
4080 // actually here we just poke into the texture settings
4081 for (j = 0, out = loadmodel->data_textures;j < loadmodel->num_textures;j++, out++)
4083 if (!strcasecmp(out->name, shadername))
4085 out->surfaceparms = flags;
4086 out->textureflags = flags2;
4087 out->basematerialflags = 0;
4088 if (out->surfaceparms & Q3SURFACEPARM_NODRAW)
4089 out->basematerialflags |= MATERIALFLAG_NODRAW;
4090 else if (out->surfaceparms & Q3SURFACEPARM_SKY)
4091 out->basematerialflags |= MATERIALFLAG_SKY;
4092 else if (out->surfaceparms & Q3SURFACEPARM_LAVA)
4093 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_FULLBRIGHT;
4094 else if (out->surfaceparms & Q3SURFACEPARM_SLIME)
4095 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_WATERALPHA;
4096 else if (out->surfaceparms & Q3SURFACEPARM_WATER)
4097 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_WATERALPHA;
4099 out->basematerialflags |= MATERIALFLAG_WALL;
4100 if (out->textureflags & Q3TEXTUREFLAG_ALPHATEST)
4102 // FIXME: support alpha test?
4103 out->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT;
4105 else if (out->surfaceparms & Q3SURFACEPARM_TRANS)
4107 if (out->textureflags & Q3TEXTUREFLAG_ADDITIVE)
4108 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_TRANSPARENT;
4110 out->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT;
4112 strlcpy(out->firstpasstexturename, firstpasstexturename, sizeof(out->firstpasstexturename));
4113 if ((flags & Q3SURFACEPARM_SKY) && sky[0])
4115 // quake3 seems to append a _ to the skybox name, so this must do so as well
4116 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", sky);
4123 Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[i], com_token);
4134 for (j = 0, out = loadmodel->data_textures;j < loadmodel->num_textures;j++, out++)
4136 if (out->surfaceparms == -1)
4139 Con_DPrintf("%s: No shader found for texture \"%s\"\n", loadmodel->name, out->name);
4140 out->surfaceparms = 0;
4141 if (out->surfaceflags & Q3SURFACEFLAG_NODRAW)
4142 out->basematerialflags |= MATERIALFLAG_NODRAW;
4143 else if (out->surfaceflags & Q3SURFACEFLAG_SKY)
4144 out->basematerialflags |= MATERIALFLAG_SKY;
4146 out->basematerialflags |= MATERIALFLAG_WALL;
4147 // these are defaults
4148 //if (!strncmp(out->name, "textures/skies/", 15))
4149 // out->surfaceparms |= Q3SURFACEPARM_SKY;
4150 //if (!strcmp(out->name, "caulk") || !strcmp(out->name, "common/caulk") || !strcmp(out->name, "textures/common/caulk")
4151 // || !strcmp(out->name, "nodraw") || !strcmp(out->name, "common/nodraw") || !strcmp(out->name, "textures/common/nodraw"))
4152 // out->surfaceparms |= Q3SURFACEPARM_NODRAW;
4153 //if (R_TextureHasAlpha(out->skin.base))
4154 // out->surfaceparms |= Q3SURFACEPARM_TRANS;
4156 if (!Mod_LoadSkinFrame(&out->skin, out->name, (((out->textureflags & Q3TEXTUREFLAG_NOMIPMAPS) || (out->surfaceparms & Q3SURFACEPARM_NOMIPMAPS)) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | (out->textureflags & Q3TEXTUREFLAG_NOPICMIP ? 0 : TEXF_PICMIP), false, true))
4157 if (!Mod_LoadSkinFrame(&out->skin, out->firstpasstexturename, (((out->textureflags & Q3TEXTUREFLAG_NOMIPMAPS) || (out->surfaceparms & Q3SURFACEPARM_NOMIPMAPS)) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | (out->textureflags & Q3TEXTUREFLAG_NOPICMIP ? 0 : TEXF_PICMIP), false, true))
4158 if (cls.state != ca_dedicated)
4159 Con_Printf("%s: texture loading for shader \"%s\" failed (first layer \"%s\" not found either)\n", loadmodel->name, out->name, out->firstpasstexturename);
4161 out->currentframe = out;
4164 Con_DPrintf("%s: %i textures missing shaders\n", loadmodel->name, c);
4167 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
4173 in = (q3dplane_t *)(mod_base + l->fileofs);
4174 if (l->filelen % sizeof(*in))
4175 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
4176 count = l->filelen / sizeof(*in);
4177 out = (mplane_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4179 loadmodel->brush.data_planes = out;
4180 loadmodel->brush.num_planes = count;
4182 for (i = 0;i < count;i++, in++, out++)
4184 out->normal[0] = LittleFloat(in->normal[0]);
4185 out->normal[1] = LittleFloat(in->normal[1]);
4186 out->normal[2] = LittleFloat(in->normal[2]);
4187 out->dist = LittleFloat(in->dist);
4192 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
4195 q3mbrushside_t *out;
4198 in = (q3dbrushside_t *)(mod_base + l->fileofs);
4199 if (l->filelen % sizeof(*in))
4200 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4201 count = l->filelen / sizeof(*in);
4202 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4204 loadmodel->brush.data_brushsides = out;
4205 loadmodel->brush.num_brushsides = count;
4207 for (i = 0;i < count;i++, in++, out++)
4209 n = LittleLong(in->planeindex);
4210 if (n < 0 || n >= loadmodel->brush.num_planes)
4211 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)\n", n, loadmodel->brush.num_planes);
4212 out->plane = loadmodel->brush.data_planes + n;
4213 n = LittleLong(in->textureindex);
4214 if (n < 0 || n >= loadmodel->num_textures)
4215 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)\n", n, loadmodel->num_textures);
4216 out->texture = loadmodel->data_textures + n;
4220 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
4224 int i, j, n, c, count, maxplanes;
4227 in = (q3dbrush_t *)(mod_base + l->fileofs);
4228 if (l->filelen % sizeof(*in))
4229 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4230 count = l->filelen / sizeof(*in);
4231 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4233 loadmodel->brush.data_brushes = out;
4234 loadmodel->brush.num_brushes = count;
4239 for (i = 0;i < count;i++, in++, out++)
4241 n = LittleLong(in->firstbrushside);
4242 c = LittleLong(in->numbrushsides);
4243 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
4244 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)\n", n, n + c, loadmodel->brush.num_brushsides);
4245 out->firstbrushside = loadmodel->brush.data_brushsides + n;
4246 out->numbrushsides = c;
4247 n = LittleLong(in->textureindex);
4248 if (n < 0 || n >= loadmodel->num_textures)
4249 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)\n", n, loadmodel->num_textures);
4250 out->texture = loadmodel->data_textures + n;
4252 // make a list of mplane_t structs to construct a colbrush from
4253 if (maxplanes < out->numbrushsides)
4255 maxplanes = out->numbrushsides;
4258 planes = (mplane_t *)Mem_Alloc(tempmempool, sizeof(mplane_t) * maxplanes);
4260 for (j = 0;j < out->numbrushsides;j++)
4262 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4263 planes[j].dist = out->firstbrushside[j].plane->dist;
4265 // make the colbrush from the planes
4266 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents);
4272 static void Mod_Q3BSP_LoadEffects(lump_t *l)
4278 in = (q3deffect_t *)(mod_base + l->fileofs);
4279 if (l->filelen % sizeof(*in))
4280 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
4281 count = l->filelen / sizeof(*in);
4282 out = (q3deffect_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4284 loadmodel->brushq3.data_effects = out;
4285 loadmodel->brushq3.num_effects = count;
4287 for (i = 0;i < count;i++, in++, out++)
4289 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
4290 n = LittleLong(in->brushindex);
4291 if (n >= loadmodel->brush.num_brushes)
4293 Con_Printf("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes), setting to -1\n", n, loadmodel->brush.num_brushes);
4296 out->brushindex = n;
4297 out->unknown = LittleLong(in->unknown);
4301 static void Mod_Q3BSP_LoadVertices(lump_t *l)
4306 in = (q3dvertex_t *)(mod_base + l->fileofs);
4307 if (l->filelen % sizeof(*in))
4308 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
4309 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
4310 loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 2 + 2 + 4)));
4311 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_vertex3f + count * 3;
4312 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
4313 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
4315 for (i = 0;i < count;i++, in++)
4317 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
4318 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
4319 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
4320 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
4321 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
4322 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
4323 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
4324 // svector/tvector are calculated later in face loading
4325 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
4326 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
4327 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
4328 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
4332 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
4338 in = (int *)(mod_base + l->fileofs);
4339 if (l->filelen % sizeof(int[3]))
4340 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
4341 count = l->filelen / sizeof(*in);
4342 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4344 loadmodel->brushq3.num_triangles = count / 3;
4345 loadmodel->brushq3.data_element3i = out;
4347 for (i = 0;i < count;i++, in++, out++)
4349 *out = LittleLong(*in);
4350 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
4352 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
4358 static void Mod_Q3BSP_LoadLightmaps(lump_t *l)
4366 in = (q3dlightmap_t *)(mod_base + l->fileofs);
4367 if (l->filelen % sizeof(*in))
4368 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
4369 count = l->filelen / sizeof(*in);
4370 out = (rtexture_t **)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4372 loadmodel->brushq3.data_lightmaps = out;
4373 loadmodel->brushq3.num_lightmaps = count;
4375 for (i = 0;i < count;i++, in++, out++)
4376 *out = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", i), 128, 128, in->rgb, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
4379 static void Mod_Q3BSP_LoadFaces(lump_t *l)
4381 q3dface_t *in, *oldin;
4382 msurface_t *out, *oldout;
4383 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;
4384 //int *originalelement3i;
4385 //int *originalneighbor3i;
4386 float *originalvertex3f;
4387 //float *originalsvector3f;
4388 //float *originaltvector3f;
4389 //float *originalnormal3f;
4390 float *originalcolor4f;
4391 float *originaltexcoordtexture2f;
4392 float *originaltexcoordlightmap2f;
4394 surfmesh_t *mesh, *tempmeshlist[1024];
4396 in = (q3dface_t *)(mod_base + l->fileofs);
4397 if (l->filelen % sizeof(*in))
4398 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
4399 count = l->filelen / sizeof(*in);
4400 out = (msurface_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4402 loadmodel->data_surfaces = out;
4403 loadmodel->num_surfaces = count;
4406 for (meshnum = 0;i < count;meshnum++)
4413 for (;i < count;i++, in++, out++)
4415 // check face type first
4416 type = LittleLong(in->type);
4417 if (type != Q3FACETYPE_POLYGON
4418 && type != Q3FACETYPE_PATCH
4419 && type != Q3FACETYPE_MESH
4420 && type != Q3FACETYPE_FLARE)
4422 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
4426 n = LittleLong(in->textureindex);
4427 if (n < 0 || n >= loadmodel->num_textures)
4429 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
4432 out->texture = loadmodel->data_textures + n;
4433 n = LittleLong(in->effectindex);
4434 if (n < -1 || n >= loadmodel->brushq3.num_effects)
4436 if (developer.integer >= 2)
4437 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
4443 out->effect = loadmodel->brushq3.data_effects + n;
4444 n = LittleLong(in->lightmapindex);
4445 if (n >= loadmodel->brushq3.num_lightmaps)
4447 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_lightmaps);
4453 out->lightmaptexture = NULL;
4455 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n];
4457 firstvertex = LittleLong(in->firstvertex);
4458 numvertices = LittleLong(in->numvertices);
4459 firstelement = LittleLong(in->firstelement);
4460 numtriangles = LittleLong(in->numelements) / 3;
4461 if (numtriangles * 3 != LittleLong(in->numelements))
4463 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));
4466 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
4468 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);
4471 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
4473 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);
4478 case Q3FACETYPE_POLYGON:
4479 case Q3FACETYPE_MESH:
4480 // no processing necessary
4482 case Q3FACETYPE_PATCH:
4483 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4484 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4485 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))
4487 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
4490 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4491 // convert patch to Q3FACETYPE_MESH
4492 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4493 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4494 // bound to user settings
4495 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4496 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4497 // bound to sanity settings
4498 xtess = bound(1, xtess, 1024);
4499 ytess = bound(1, ytess, 1024);
4500 // bound to user limit on vertices
4501 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4508 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4509 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4510 numvertices = finalwidth * finalheight;
4511 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4513 case Q3FACETYPE_FLARE:
4514 if (developer.integer >= 2)
4515 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
4519 out->num_vertices = numvertices;
4520 out->num_triangles = numtriangles;
4521 if (meshvertices + out->num_vertices > 65536)
4523 meshvertices += out->num_vertices;
4524 meshtriangles += out->num_triangles;
4530 mesh = tempmeshlist[meshnum] = Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true, false);
4533 for (;i < count && meshvertices + out->num_vertices <= mesh->num_vertices;i++, in++, out++)
4535 if (out->num_vertices < 3 || out->num_triangles < 1)
4538 type = LittleLong(in->type);
4539 firstvertex = LittleLong(in->firstvertex);
4540 firstelement = LittleLong(in->firstelement);
4541 out->groupmesh = mesh;
4542 out->num_firstvertex = meshvertices;
4543 out->num_firsttriangle = meshtriangles;
4546 case Q3FACETYPE_POLYGON:
4547 case Q3FACETYPE_MESH:
4548 // no processing necessary
4549 for (j = 0;j < out->num_vertices;j++)
4551 (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
4552 (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
4553 (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
4554 (out->groupmesh->data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
4555 (out->groupmesh->data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
4556 (out->groupmesh->data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
4557 (out->groupmesh->data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
4558 (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
4559 (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
4560 (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
4561 (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
4563 for (j = 0;j < out->num_triangles*3;j++)
4564 (out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
4566 case Q3FACETYPE_PATCH:
4567 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4568 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4569 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4570 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
4571 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
4572 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
4573 // convert patch to Q3FACETYPE_MESH
4574 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4575 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4576 // bound to user settings
4577 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4578 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4579 // bound to sanity settings
4580 xtess = bound(1, xtess, 1024);
4581 ytess = bound(1, ytess, 1024);
4582 // bound to user limit on vertices
4583 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4590 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4591 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4592 finalvertices = finalwidth * finalheight;
4593 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4594 type = Q3FACETYPE_MESH;
4595 // generate geometry
4596 // (note: normals are skipped because they get recalculated)
4597 Q3PatchTesselateFloat(3, sizeof(float[3]), (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4598 Q3PatchTesselateFloat(2, sizeof(float[2]), (out->groupmesh->data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
4599 Q3PatchTesselateFloat(2, sizeof(float[2]), (out->groupmesh->data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
4600 Q3PatchTesselateFloat(4, sizeof(float[4]), (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
4601 Q3PatchTriangleElements((out->groupmesh->data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
4602 out->num_triangles = Mod_RemoveDegenerateTriangles(out->num_triangles, (out->groupmesh->data_element3i + 3 * out->num_firsttriangle), (out->groupmesh->data_element3i + 3 * out->num_firsttriangle), out->groupmesh->data_vertex3f);
4603 if (developer.integer >= 2)
4605 if (out->num_triangles < finaltriangles)
4606 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->num_vertices, finaltriangles, finaltriangles - out->num_triangles, out->num_triangles);
4608 Con_Printf("Mod_Q3BSP_LoadFaces: %ix%i curve subdivided to %i vertices / %i triangles\n", patchsize[0], patchsize[1], out->num_vertices, out->num_triangles);
4610 // q3map does not put in collision brushes for curves... ugh
4611 // build the lower quality collision geometry
4612 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4613 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4614 // bound to user settings
4615 xtess = bound(r_subdivisions_collision_mintess.integer, xtess, r_subdivisions_collision_maxtess.integer);
4616 ytess = bound(r_subdivisions_collision_mintess.integer, ytess, r_subdivisions_collision_maxtess.integer);
4617 // bound to sanity settings
4618 xtess = bound(1, xtess, 1024);
4619 ytess = bound(1, ytess, 1024);
4620 // bound to user limit on vertices
4621 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_collision_maxvertices.integer, 262144))
4628 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4629 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4630 finalvertices = finalwidth * finalheight;
4631 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4633 out->data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
4634 out->data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
4635 out->num_collisionvertices = finalvertices;
4636 out->num_collisiontriangles = finaltriangles;
4637 Q3PatchTesselateFloat(3, sizeof(float[3]), out->data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4638 Q3PatchTriangleElements(out->data_collisionelement3i, finalwidth, finalheight, 0);
4640 //Mod_SnapVertices(3, out->num_vertices, (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex), 0.25);
4641 Mod_SnapVertices(3, out->num_collisionvertices, out->data_collisionvertex3f, 1);
4643 oldnumtriangles = out->num_triangles;
4644 oldnumtriangles2 = out->num_collisiontriangles;
4645 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(out->num_collisiontriangles, out->data_collisionelement3i, out->data_collisionelement3i, out->data_collisionvertex3f);
4646 if (developer.integer)
4647 Con_Printf("Mod_Q3BSP_LoadFaces: %ix%i curve became %i:%i vertices / %i:%i triangles (%i:%i degenerate)\n", patchsize[0], patchsize[1], out->num_vertices, out->num_collisionvertices, oldnumtriangles, oldnumtriangles2, oldnumtriangles - out->num_triangles, oldnumtriangles2 - out->num_collisiontriangles);
4652 meshvertices += out->num_vertices;
4653 meshtriangles += out->num_triangles;
4654 for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
4655 if ((out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] < out->num_firstvertex || (out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] >= out->num_firstvertex + out->num_vertices)
4657 if (invalidelements)
4659 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->num_vertices, firstelement, out->num_triangles * 3);
4660 for (j = 0;j < out->num_triangles * 3;j++)
4662 Con_Printf(" %i", (out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
4663 if ((out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] < out->num_firstvertex || (out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] >= out->num_firstvertex + out->num_vertices)
4664 (out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
4668 // for per pixel lighting
4669 Mod_BuildTextureVectorsAndNormals(out->num_firstvertex, out->num_vertices, out->num_triangles, out->groupmesh->data_vertex3f, out->groupmesh->data_texcoordtexture2f, (out->groupmesh->data_element3i + 3 * out->num_firsttriangle), out->groupmesh->data_svector3f, out->groupmesh->data_tvector3f, out->groupmesh->data_normal3f, true);
4670 // calculate a bounding box
4671 VectorClear(out->mins);
4672 VectorClear(out->maxs);
4673 if (out->num_vertices)
4675 VectorCopy((out->groupmesh->data_vertex3f + 3 * out->num_firstvertex), out->mins);
4676 VectorCopy((out->groupmesh->data_vertex3f + 3 * out->num_firstvertex), out->maxs);
4677 for (j = 1, v = (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
4679 out->mins[0] = min(out->mins[0], v[0]);
4680 out->maxs[0] = max(out->maxs[0], v[0]);
4681 out->mins[1] = min(out->mins[1], v[1]);
4682 out->maxs[1] = max(out->maxs[1], v[1]);
4683 out->mins[2] = min(out->mins[2], v[2]);
4684 out->maxs[2] = max(out->maxs[2], v[2]);
4686 out->mins[0] -= 1.0f;
4687 out->mins[1] -= 1.0f;
4688 out->mins[2] -= 1.0f;
4689 out->maxs[0] += 1.0f;
4690 out->maxs[1] += 1.0f;
4691 out->maxs[2] += 1.0f;
4693 // set lightmap styles for consistency with q1bsp
4694 //out->lightmapinfo->styles[0] = 0;
4695 //out->lightmapinfo->styles[1] = 255;
4696 //out->lightmapinfo->styles[2] = 255;
4697 //out->lightmapinfo->styles[3] = 255;
4701 // now store the completed list of meshes
4702 loadmodel->nummeshes = meshnum;
4703 if (loadmodel->nummeshes)
4705 loadmodel->meshlist = (surfmesh_t **)Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t *) * loadmodel->nummeshes);
4706 memcpy(loadmodel->meshlist, tempmeshlist, sizeof(surfmesh_t *) * loadmodel->nummeshes);
4709 // free the no longer needed vertex data
4710 loadmodel->brushq3.num_vertices = 0;
4711 Mem_Free(loadmodel->brushq3.data_vertex3f);
4712 loadmodel->brushq3.data_vertex3f = NULL;
4713 loadmodel->brushq3.data_texcoordtexture2f = NULL;
4714 loadmodel->brushq3.data_texcoordlightmap2f = NULL;
4715 loadmodel->brushq3.data_color4f = NULL;
4716 // free the no longer needed triangle data
4717 loadmodel->brushq3.num_triangles = 0;
4718 Mem_Free(loadmodel->brushq3.data_element3i);
4719 loadmodel->brushq3.data_element3i = NULL;
4722 static void Mod_Q3BSP_LoadModels(lump_t *l)
4726 int i, j, n, c, count;
4728 in = (q3dmodel_t *)(mod_base + l->fileofs);
4729 if (l->filelen % sizeof(*in))
4730 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
4731 count = l->filelen / sizeof(*in);
4732 out = (q3dmodel_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4734 loadmodel->brushq3.data_models = out;
4735 loadmodel->brushq3.num_models = count;
4737 for (i = 0;i < count;i++, in++, out++)
4739 for (j = 0;j < 3;j++)
4741 out->mins[j] = LittleFloat(in->mins[j]);
4742 out->maxs[j] = LittleFloat(in->maxs[j]);
4744 n = LittleLong(in->firstface);
4745 c = LittleLong(in->numfaces);
4746 if (n < 0 || n + c > loadmodel->num_surfaces)
4747 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)\n", n, n + c, loadmodel->num_surfaces);
4750 n = LittleLong(in->firstbrush);
4751 c = LittleLong(in->numbrushes);
4752 if (n < 0 || n + c > loadmodel->brush.num_brushes)
4753 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)\n", n, n + c, loadmodel->brush.num_brushes);
4754 out->firstbrush = n;
4755 out->numbrushes = c;
4759 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
4765 in = (int *)(mod_base + l->fileofs);
4766 if (l->filelen % sizeof(*in))
4767 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
4768 count = l->filelen / sizeof(*in);
4769 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4771 loadmodel->brush.data_leafbrushes = out;
4772 loadmodel->brush.num_leafbrushes = count;
4774 for (i = 0;i < count;i++, in++, out++)
4776 n = LittleLong(*in);
4777 if (n < 0 || n >= loadmodel->brush.num_brushes)
4778 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)\n", n, loadmodel->brush.num_brushes);
4783 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
4789 in = (int *)(mod_base + l->fileofs);
4790 if (l->filelen % sizeof(*in))
4791 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
4792 count = l->filelen / sizeof(*in);
4793 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4795 loadmodel->brush.data_leafsurfaces = out;
4796 loadmodel->brush.num_leafsurfaces = count;
4798 for (i = 0;i < count;i++, in++, out++)
4800 n = LittleLong(*in);
4801 if (n < 0 || n >= loadmodel->num_surfaces)
4802 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)\n", n, loadmodel->num_surfaces);
4807 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
4811 int i, j, n, c, count;
4813 in = (q3dleaf_t *)(mod_base + l->fileofs);
4814 if (l->filelen % sizeof(*in))
4815 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
4816 count = l->filelen / sizeof(*in);
4817 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4819 loadmodel->brush.data_leafs = out;
4820 loadmodel->brush.num_leafs = count;
4822 for (i = 0;i < count;i++, in++, out++)
4826 out->clusterindex = LittleLong(in->clusterindex);
4827 out->areaindex = LittleLong(in->areaindex);
4828 for (j = 0;j < 3;j++)
4830 // yes the mins/maxs are ints
4831 out->mins[j] = LittleLong(in->mins[j]) - 1;
4832 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
4834 n = LittleLong(in->firstleafface);
4835 c = LittleLong(in->numleaffaces);
4836 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
4837 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)\n", n, n + c, loadmodel->brush.num_leafsurfaces);
4838 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
4839 out->numleafsurfaces = c;
4840 n = LittleLong(in->firstleafbrush);
4841 c = LittleLong(in->numleafbrushes);
4842 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
4843 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)\n", n, n + c, loadmodel->brush.num_leafbrushes);
4844 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
4845 out->numleafbrushes = c;
4849 static void Mod_Q3BSP_LoadNodes(lump_t *l)
4855 in = (q3dnode_t *)(mod_base + l->fileofs);
4856 if (l->filelen % sizeof(*in))
4857 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
4858 count = l->filelen / sizeof(*in);
4859 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4861 loadmodel->brush.data_nodes = out;
4862 loadmodel->brush.num_nodes = count;
4864 for (i = 0;i < count;i++, in++, out++)
4867 n = LittleLong(in->planeindex);
4868 if (n < 0 || n >= loadmodel->brush.num_planes)
4869 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)\n", n, loadmodel->brush.num_planes);
4870 out->plane = loadmodel->brush.data_planes + n;
4871 for (j = 0;j < 2;j++)
4873 n = LittleLong(in->childrenindex[j]);
4876 if (n >= loadmodel->brush.num_nodes)
4877 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)\n", n, loadmodel->brush.num_nodes);
4878 out->children[j] = loadmodel->brush.data_nodes + n;
4883 if (n >= loadmodel->brush.num_leafs)
4884 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)\n", n, loadmodel->brush.num_leafs);
4885 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
4888 for (j = 0;j < 3;j++)
4890 // yes the mins/maxs are ints
4891 out->mins[j] = LittleLong(in->mins[j]) - 1;
4892 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
4896 // set the parent pointers
4897 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
4900 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
4903 q3dlightgrid_t *out;
4906 in = (q3dlightgrid_t *)(mod_base + l->fileofs);
4907 if (l->filelen % sizeof(*in))
4908 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
4909 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
4910 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
4911 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
4912 loadmodel->brushq3.num_lightgrid_imins[0] = ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
4913 loadmodel->brushq3.num_lightgrid_imins[1] = ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
4914 loadmodel->brushq3.num_lightgrid_imins[2] = ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
4915 loadmodel->brushq3.num_lightgrid_imaxs[0] = floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
4916 loadmodel->brushq3.num_lightgrid_imaxs[1] = floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
4917 loadmodel->brushq3.num_lightgrid_imaxs[2] = floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
4918 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
4919 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
4920 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
4921 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
4922 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]);
4923 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]);
4925 // if lump is empty there is nothing to load, we can deal with that in the LightPoint code
4928 if (l->filelen < count * (int)sizeof(*in))
4929 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]);
4930 if (l->filelen != count * (int)sizeof(*in))
4931 Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", count * sizeof(*in), l->filelen);
4932 out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4933 loadmodel->brushq3.data_lightgrid = out;
4934 loadmodel->brushq3.num_lightgrid = count;
4935 // no swapping or validation necessary
4936 memcpy(out, in, count * (int)sizeof(*out));
4940 static void Mod_Q3BSP_LoadPVS(lump_t *l)
4945 if (l->filelen == 0)
4948 // unvised maps often have cluster indices even without pvs, so check
4949 // leafs to find real number of clusters
4950 loadmodel->brush.num_pvsclusters = 1;
4951 for (i = 0;i < loadmodel->brush.num_leafs;i++)
4952 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
4955 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
4956 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
4957 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
4958 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
4962 in = (q3dpvs_t *)(mod_base + l->fileofs);
4964 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
4966 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
4967 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
4968 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
4969 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8\n", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
4970 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
4971 if (l->filelen < totalchains + (int)sizeof(*in))
4972 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);
4974 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
4975 memcpy(loadmodel->brush.data_pvsclusters, (qbyte *)(in + 1), totalchains);
4978 static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
4980 int i, j, k, index[3];
4981 float transformed[3], blend1, blend2, blend, yaw, pitch, sinpitch;
4982 q3dlightgrid_t *a, *s;
4983 if (!model->brushq3.num_lightgrid)
4985 ambientcolor[0] = 1;
4986 ambientcolor[1] = 1;
4987 ambientcolor[2] = 1;
4990 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
4991 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
4992 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
4993 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
4994 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
4995 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
4996 index[0] = (int)floor(transformed[0]);
4997 index[1] = (int)floor(transformed[1]);
4998 index[2] = (int)floor(transformed[2]);
4999 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
5000 // now lerp the values
5001 VectorClear(diffusenormal);
5002 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
5003 for (k = 0;k < 2;k++)
5005 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
5006 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
5008 for (j = 0;j < 2;j++)
5010 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
5011 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
5013 for (i = 0;i < 2;i++)
5015 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0])));
5016 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
5018 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
5019 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
5020 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
5021 pitch = s->diffusepitch * M_PI / 128;
5022 yaw = s->diffuseyaw * M_PI / 128;
5023 sinpitch = sin(pitch);
5024 diffusenormal[0] += blend * (cos(yaw) * sinpitch);
5025 diffusenormal[1] += blend * (sin(yaw) * sinpitch);
5026 diffusenormal[2] += blend * (cos(pitch));
5027 //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)));
5031 VectorNormalize(diffusenormal);
5032 //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]);
5035 static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t point, int markframe)
5040 // find which leaf the point is in
5042 node = node->children[DotProduct(point, node->plane->normal) < node->plane->dist];
5043 // point trace the brushes
5044 leaf = (mleaf_t *)node;
5045 for (i = 0;i < leaf->numleafbrushes;i++)
5047 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5048 if (brush && brush->markframe != markframe && BoxesOverlap(point, point, brush->mins, brush->maxs))
5050 brush->markframe = markframe;
5051 Collision_TracePointBrushFloat(trace, point, brush);
5054 // can't do point traces on curves (they have no thickness)
5057 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)
5059 int i, startside, endside;
5060 float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
5062 msurface_t *surface;
5064 if (startfrac > trace->realfraction)
5066 // note: all line fragments past first impact fraction are ignored
5067 if (VectorCompare(start, end))
5069 // find which leaf the point is in
5071 node = node->children[DotProduct(start, node->plane->normal) < node->plane->dist];
5075 // find which nodes the line is in and recurse for them
5078 // recurse down node sides
5079 dist1 = PlaneDiff(start, node->plane);
5080 dist2 = PlaneDiff(end, node->plane);
5081 startside = dist1 < 0;
5082 endside = dist2 < 0;
5083 if (startside == endside)
5085 // most of the time the line fragment is on one side of the plane
5086 node = node->children[startside];
5090 // line crosses node plane, split the line
5091 midfrac = dist1 / (dist1 - dist2);
5092 VectorLerp(start, midfrac, end, mid);
5093 // take the near side first
5094 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5095 if (midfrac <= trace->realfraction)
5096 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5102 nodesegmentmins[0] = min(start[0], end[0]);
5103 nodesegmentmins[1] = min(start[1], end[1]);
5104 nodesegmentmins[2] = min(start[2], end[2]);
5105 nodesegmentmaxs[0] = max(start[0], end[0]);
5106 nodesegmentmaxs[1] = max(start[1], end[1]);
5107 nodesegmentmaxs[2] = max(start[2], end[2]);
5108 // line trace the brushes
5109 leaf = (mleaf_t *)node;
5110 for (i = 0;i < leaf->numleafbrushes;i++)
5112 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5113 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5115 brush->markframe = markframe;
5116 Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
5117 if (startfrac > trace->realfraction)
5121 // can't do point traces on curves (they have no thickness)
5122 if (mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
5124 // line trace the curves
5125 for (i = 0;i < leaf->numleafsurfaces;i++)
5127 surface = model->data_surfaces + leaf->firstleafsurface[i];
5128 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5130 surface->collisionmarkframe = markframe;
5131 Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
5132 if (startfrac > trace->realfraction)
5139 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)
5143 float nodesegmentmins[3], nodesegmentmaxs[3];
5146 msurface_t *surface;
5148 // find which nodes the line is in and recurse for them
5151 // recurse down node sides
5152 int startside, endside;
5153 float dist1near, dist1far, dist2near, dist2far;
5154 BoxPlaneCornerDistances(thisbrush_start->mins, thisbrush_start->maxs, node->plane, &dist1near, &dist1far);
5155 BoxPlaneCornerDistances(thisbrush_end->mins, thisbrush_end->maxs, node->plane, &dist2near, &dist2far);
5156 startside = dist1near < 0;
5157 startside = dist1near < 0 ? (dist1far < 0 ? 1 : 2) : (dist1far < 0 ? 2 : 0);
5158 endside = dist2near < 0 ? (dist2far < 0 ? 1 : 2) : (dist2far < 0 ? 2 : 0);
5159 if (startside == 2 || endside == 2)
5161 // brushes cross plane
5162 // do not clip anything, just take both sides
5163 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5164 node = node->children[1];
5171 node = node->children[0];
5176 //midf0 = dist1near / (dist1near - dist2near);
5177 //midf1 = dist1far / (dist1far - dist2far);
5178 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5179 node = node->children[1];
5187 //midf0 = dist1near / (dist1near - dist2near);
5188 //midf1 = dist1far / (dist1far - dist2far);
5189 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5190 node = node->children[1];
5195 node = node->children[1];
5200 if (dist1near < 0 && dist2near < 0 && dist1far < 0 && dist2far < 0){node = node->children[1];continue;}
5201 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;}
5202 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;}
5203 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;}
5204 if (dist1near < 0 && dist2near >= 0 && dist1far < 0 && dist2far < 0){node = node->children[1];continue;}
5205 if (dist1near < 0 && dist2near >= 0 && dist1far < 0 && dist2far >= 0){}
5206 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;}
5207 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;}
5208 if (dist1near >= 0 && dist2near < 0 && dist1far < 0 && dist2far < 0){node = node->children[1];continue;}
5209 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;}
5210 if (dist1near >= 0 && dist2near < 0 && dist1far >= 0 && dist2far < 0){}
5211 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;}
5212 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;}
5213 if (dist1near >= 0 && dist2near >= 0 && dist1far < 0 && dist2far >= 0){node = node->children[0];continue;}
5214 if (dist1near >= 0 && dist2near >= 0 && dist1far >= 0 && dist2far < 0){node = node->children[0];continue;}
5215 if (dist1near >= 0 && dist2near >= 0 && dist1far >= 0 && dist2far >= 0){node = node->children[0];continue;}
5217 if (dist2near < 0) // d1n<0 && d2n<0
5219 if (dist2near < 0) // d1n<0 && d2n<0
5221 if (dist2near < 0) // d1n<0 && d2n<0
5224 else // d1n<0 && d2n>0
5228 else // d1n<0 && d2n>0
5230 if (dist2near < 0) // d1n<0 && d2n<0
5233 else // d1n<0 && d2n>0
5238 else // d1n<0 && d2n>0
5244 if (dist2near < 0) // d1n>0 && d2n<0
5247 else // d1n>0 && d2n>0
5251 if (dist1near < 0 == dist1far < 0 == dist2near < 0 == dist2far < 0)
5253 node = node->children[startside];
5256 if (dist1near < dist2near)
5261 node = node->children[0];
5266 node = node->children[1];
5269 // dist1near < 0 && dist2far >= 0
5275 startside = dist1near < 0 ? (dist1far < 0 ? 1 : 2) : (dist1far < 0 ? 2 : 0);
5276 endside = dist2near < 0 ? (dist2far < 0 ? 1 : 2) : (dist2far < 0 ? 2 : 0);
5277 if (startside == 2 || endside == 2)
5279 // brushes cross plane
5280 // do not clip anything, just take both sides
5281 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5282 node = node->children[1];
5284 else if (startside == endside)
5285 node = node->children[startside];
5286 else if (startside == 0) // endside = 1 (start infront, end behind)
5289 else // startside == 1 endside = 0 (start behind, end infront)
5295 node = node->children[startside];
5298 // start and end brush cross plane
5304 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5305 node = node->children[1];
5306 else if (dist1near < 0 && dist1far < 0 && dist2near >= 0 && dist2far >= 0)
5307 else if (dist1near >= 0 && dist1far >= 0 && dist2near < 0 && dist2far < 0)
5308 else if (dist1near >= 0 && dist1far >= 0 && dist2near >= 0 && dist2far >= 0)
5309 node = node->children[0];
5311 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5312 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5313 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5314 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5315 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5318 else if (dist1near >= 0 && dist1far >= 0)
5321 else // mixed (lying on plane)
5325 if (dist2near < 0 && dist2far < 0)
5329 node = node->children[1];
5331 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5332 node = node->children[0];
5333 else if (dist1near >= 0 && dist1far >= 0 && dist2near >= 0 && dist2far >= 0)
5334 node = node->children[1];
5338 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5339 node = node->children[1];
5341 sides = dist1near || dist1near < 0 | dist1far < 0 | dist2near < 0 | dist
5342 startside = dist1 < 0;
5343 endside = dist2 < 0;
5344 if (startside == endside)
5346 // most of the time the line fragment is on one side of the plane
5347 node = node->children[startside];
5351 // line crosses node plane, split the line
5352 midfrac = dist1 / (dist1 - dist2);
5353 VectorLerp(start, midfrac, end, mid);
5354 // take the near side first
5355 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5356 if (midfrac <= trace->fraction)
5357 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5365 nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
5366 nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
5367 nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
5368 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
5369 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
5370 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
5371 if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
5375 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5376 node = node->children[1];
5379 // FIXME: could be made faster by copying TraceLine code and making it use
5380 // box plane distances... (variant on the BoxOnPlaneSide code)
5383 nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
5384 nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
5385 nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
5386 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
5387 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
5388 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
5389 if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
5393 if (mod_q3bsp_debugtracebrush.integer == 2)
5395 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5396 node = node->children[1];
5399 else if (mod_q3bsp_debugtracebrush.integer == 1)
5401 // recurse down node sides
5402 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5405 // segment box crosses plane
5406 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5407 node = node->children[1];
5410 // take whichever side the segment box is on
5411 node = node->children[sides - 1];
5416 // recurse down node sides
5417 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5420 // segment box crosses plane
5421 // now check start and end brush boxes to handle a lot of 'diagonal' cases more efficiently...
5422 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, node->plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, node->plane);
5425 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5426 node = node->children[1];
5430 // take whichever side the segment box is on
5431 node = node->children[sides - 1];
5437 // FIXME: could be made faster by copying TraceLine code and making it use
5438 // box plane distances... (variant on the BoxOnPlaneSide code)
5441 nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
5442 nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
5443 nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
5444 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
5445 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
5446 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
5447 if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
5451 if (mod_q3bsp_debugtracebrush.integer == 2)
5453 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5454 node = node->children[1];
5456 else if (mod_q3bsp_debugtracebrush.integer == 1)
5458 // recurse down node sides
5459 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5462 // segment box crosses plane
5463 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5464 node = node->children[1];
5468 // take whichever side the segment box is on
5469 node = node->children[sides - 1];
5474 // recurse down node sides
5475 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5478 // segment box crosses plane
5479 // now check start and end brush boxes to handle a lot of 'diagonal' cases more efficiently...
5480 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, node->plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, node->plane);
5483 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5487 // take whichever side the segment box is on
5488 node = node->children[sides - 1];
5493 leaf = (mleaf_t *)node;
5494 for (i = 0;i < leaf->numleafbrushes;i++)
5496 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5497 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5499 brush->markframe = markframe;
5500 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
5503 if (mod_q3bsp_curves_collisions.integer)
5505 for (i = 0;i < leaf->numleafsurfaces;i++)
5507 surface = model->data_surfaces + leaf->firstleafsurface[i];
5508 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5510 surface->collisionmarkframe = markframe;
5511 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
5517 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)
5520 float segmentmins[3], segmentmaxs[3];
5521 colbrushf_t *thisbrush_start, *thisbrush_end;
5522 matrix4x4_t startmatrix, endmatrix;
5523 static int markframe = 0;
5524 msurface_t *surface;
5526 memset(trace, 0, sizeof(*trace));
5527 trace->fraction = 1;
5528 trace->realfraction = 1;
5529 trace->hitsupercontentsmask = hitsupercontentsmask;
5530 Matrix4x4_CreateIdentity(&startmatrix);
5531 Matrix4x4_CreateIdentity(&endmatrix);
5532 segmentmins[0] = min(boxstartmins[0], boxendmins[0]);
5533 segmentmins[1] = min(boxstartmins[1], boxendmins[1]);
5534 segmentmins[2] = min(boxstartmins[2], boxendmins[2]);
5535 segmentmaxs[0] = max(boxstartmaxs[0], boxendmaxs[0]);
5536 segmentmaxs[1] = max(boxstartmaxs[1], boxendmaxs[1]);
5537 segmentmaxs[2] = max(boxstartmaxs[2], boxendmaxs[2]);
5538 if (mod_q3bsp_optimizedtraceline.integer && VectorCompare(boxstartmins, boxstartmaxs) && VectorCompare(boxendmins, boxendmaxs))
5540 if (VectorCompare(boxstartmins, boxendmins))
5543 if (model->brush.submodel)
5545 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5546 if (brush->colbrushf)
5547 Collision_TracePointBrushFloat(trace, boxstartmins, brush->colbrushf);
5550 Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, boxstartmins, ++markframe);
5555 if (model->brush.submodel)
5557 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5558 if (brush->colbrushf)
5559 Collision_TraceLineBrushFloat(trace, boxstartmins, boxendmins, brush->colbrushf, brush->colbrushf);
5560 if (mod_q3bsp_curves_collisions.integer)
5561 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5562 if (surface->num_collisiontriangles)
5563 Collision_TraceLineTriangleMeshFloat(trace, boxstartmins, boxendmins, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
5566 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, boxstartmins, boxendmins, 0, 1, boxstartmins, boxendmins, ++markframe, segmentmins, segmentmaxs);
5571 // box trace, performed as brush trace
5572 thisbrush_start = Collision_BrushForBox(&startmatrix, boxstartmins, boxstartmaxs);
5573 thisbrush_end = Collision_BrushForBox(&endmatrix, boxendmins, boxendmaxs);
5574 if (model->brush.submodel)
5576 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5577 if (brush->colbrushf)
5578 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush->colbrushf, brush->colbrushf);
5579 if (mod_q3bsp_curves_collisions.integer)
5580 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5581 if (surface->num_collisiontriangles)
5582 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
5585 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, model->brush.data_nodes, thisbrush_start, thisbrush_end, ++markframe, segmentmins, segmentmaxs);
5589 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
5591 int supercontents = 0;
5592 if (nativecontents & CONTENTSQ3_SOLID)
5593 supercontents |= SUPERCONTENTS_SOLID;
5594 if (nativecontents & CONTENTSQ3_WATER)
5595 supercontents |= SUPERCONTENTS_WATER;
5596 if (nativecontents & CONTENTSQ3_SLIME)
5597 supercontents |= SUPERCONTENTS_SLIME;
5598 if (nativecontents & CONTENTSQ3_LAVA)
5599 supercontents |= SUPERCONTENTS_LAVA;
5600 if (nativecontents & CONTENTSQ3_BODY)
5601 supercontents |= SUPERCONTENTS_BODY;
5602 if (nativecontents & CONTENTSQ3_CORPSE)
5603 supercontents |= SUPERCONTENTS_CORPSE;
5604 if (nativecontents & CONTENTSQ3_NODROP)
5605 supercontents |= SUPERCONTENTS_NODROP;
5606 if (nativecontents & CONTENTSQ3_PLAYERCLIP)
5607 supercontents |= SUPERCONTENTS_PLAYERCLIP;
5608 if (nativecontents & CONTENTSQ3_MONSTERCLIP)
5609 supercontents |= SUPERCONTENTS_MONSTERCLIP;
5610 if (nativecontents & CONTENTSQ3_DONOTENTER)
5611 supercontents |= SUPERCONTENTS_DONOTENTER;
5612 return supercontents;
5615 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
5617 int nativecontents = 0;
5618 if (supercontents & SUPERCONTENTS_SOLID)
5619 nativecontents |= CONTENTSQ3_SOLID;
5620 if (supercontents & SUPERCONTENTS_WATER)
5621 nativecontents |= CONTENTSQ3_WATER;
5622 if (supercontents & SUPERCONTENTS_SLIME)
5623 nativecontents |= CONTENTSQ3_SLIME;
5624 if (supercontents & SUPERCONTENTS_LAVA)
5625 nativecontents |= CONTENTSQ3_LAVA;
5626 if (supercontents & SUPERCONTENTS_BODY)
5627 nativecontents |= CONTENTSQ3_BODY;
5628 if (supercontents & SUPERCONTENTS_CORPSE)
5629 nativecontents |= CONTENTSQ3_CORPSE;
5630 if (supercontents & SUPERCONTENTS_NODROP)
5631 nativecontents |= CONTENTSQ3_NODROP;
5632 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
5633 nativecontents |= CONTENTSQ3_PLAYERCLIP;
5634 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
5635 nativecontents |= CONTENTSQ3_MONSTERCLIP;
5636 if (supercontents & SUPERCONTENTS_DONOTENTER)
5637 nativecontents |= CONTENTSQ3_DONOTENTER;
5638 return nativecontents;
5641 void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
5646 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
5647 node = node->children[1];
5649 numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
5650 if (loadmodel->brush.num_leafs < numleafs)
5651 loadmodel->brush.num_leafs = numleafs;
5654 void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
5656 int i, j, numshadowmeshtriangles;
5657 q3dheader_t *header;
5658 float corner[3], yawradius, modelradius;
5659 msurface_t *surface;
5661 mod->type = mod_brushq3;
5662 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
5665 header = (q3dheader_t *)buffer;
5667 i = LittleLong(header->version);
5668 if (i != Q3BSPVERSION)
5669 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
5670 mod->brush.ishlbsp = false;
5671 mod->brush.ismcbsp = false;
5672 if (loadmodel->isworldmodel)
5674 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
5675 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
5678 mod->soundfromcenter = true;
5679 mod->TraceBox = Mod_Q3BSP_TraceBox;
5680 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
5681 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
5682 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
5683 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
5684 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
5685 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
5686 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
5687 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
5688 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
5689 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5690 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
5691 mod->Draw = R_Q1BSP_Draw;
5692 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
5693 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
5694 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
5695 mod->DrawLight = R_Q1BSP_DrawLight;
5697 mod_base = (qbyte *)header;
5699 // swap all the lumps
5700 header->ident = LittleLong(header->ident);
5701 header->version = LittleLong(header->version);
5702 for (i = 0;i < Q3HEADER_LUMPS;i++)
5704 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
5705 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
5708 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
5709 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
5710 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
5711 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
5712 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
5713 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
5714 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
5715 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
5716 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS]);
5717 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
5718 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
5719 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
5720 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
5721 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
5722 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
5723 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
5724 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
5725 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
5727 // the MakePortals code works fine on the q3bsp data as well
5728 Mod_Q1BSP_MakePortals();
5730 // make a single combined shadow mesh to allow optimized shadow volume creation
5731 numshadowmeshtriangles = 0;
5732 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5734 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
5735 numshadowmeshtriangles += surface->num_triangles;
5737 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
5738 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5739 if (surface->groupmesh)
5740 Mod_ShadowMesh_AddMesh(loadmodel->mempool, loadmodel->brush.shadowmesh, NULL, NULL, NULL, surface->groupmesh->data_vertex3f, NULL, NULL, NULL, NULL, surface->num_triangles, (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle));
5741 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
5742 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
5744 loadmodel->brush.num_leafs = 0;
5745 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
5747 if (loadmodel->isworldmodel)
5749 // clear out any stale submodels or worldmodels lying around
5750 // if we did this clear before now, an error might abort loading and
5751 // leave things in a bad state
5752 Mod_RemoveStaleWorldModels(loadmodel);
5756 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
5761 // LordHavoc: only register submodels if it is the world
5762 // (prevents external bsp models from replacing world submodels with
5764 if (!loadmodel->isworldmodel)
5766 // duplicate the basic information
5767 sprintf(name, "*%i", i);
5768 mod = Mod_FindName(name);
5770 strcpy(mod->name, name);
5771 // textures and memory belong to the main model
5772 mod->texturepool = NULL;
5773 mod->mempool = NULL;
5774 mod->brush.GetPVS = NULL;
5775 mod->brush.FatPVS = NULL;
5776 mod->brush.BoxTouchingPVS = NULL;
5777 mod->brush.BoxTouchingLeafPVS = NULL;
5778 mod->brush.BoxTouchingVisibleLeafs = NULL;
5779 mod->brush.FindBoxClusters = NULL;
5780 mod->brush.LightPoint = NULL;
5781 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5783 mod->brush.submodel = i;
5785 // make the model surface list (used by shadowing/lighting)
5786 mod->firstmodelsurface = mod->brushq3.data_models[i].firstface;
5787 mod->nummodelsurfaces = mod->brushq3.data_models[i].numfaces;
5788 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
5789 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
5790 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
5791 for (j = 0;j < mod->nummodelsurfaces;j++)
5792 mod->surfacelist[j] = mod->firstmodelsurface + j;
5794 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
5795 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
5796 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
5797 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
5798 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
5799 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
5800 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
5801 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
5802 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
5803 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
5804 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
5805 mod->yawmins[2] = mod->normalmins[2];
5806 mod->yawmaxs[2] = mod->normalmaxs[2];
5807 mod->radius = modelradius;
5808 mod->radius2 = modelradius * modelradius;
5810 for (j = 0;j < mod->nummodelsurfaces;j++)
5811 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->surfaceflags & Q3SURFACEFLAG_SKY)
5813 if (j < mod->nummodelsurfaces)
5814 mod->DrawSky = R_Q1BSP_DrawSky;
5818 void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
5820 int i = LittleLong(((int *)buffer)[1]);
5821 if (i == Q3BSPVERSION)
5822 Mod_Q3BSP_Load(mod,buffer, bufferend);
5823 else if (i == Q2BSPVERSION)
5824 Mod_Q2BSP_Load(mod,buffer, bufferend);
5826 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i\n", i);
5829 void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend)
5831 Host_Error("Mod_MAP_Load: not yet implemented\n");