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 Mod_CheckLoaded(model);
79 // LordHavoc: modified to start at first clip node,
80 // in other words: first node of the (sub)model
81 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
83 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
85 return (mleaf_t *)node;
88 static void Mod_Q1BSP_AmbientSoundLevelsForPoint(model_t *model, const vec3_t p, qbyte *out, int outsize)
92 leaf = Mod_Q1BSP_PointInLeaf(model, p);
95 i = min(outsize, (int)sizeof(leaf->ambient_sound_level));
98 memcpy(out, leaf->ambient_sound_level, i);
104 memset(out, 0, outsize);
107 static int Mod_Q1BSP_BoxTouchingPVS(model_t *model, const qbyte *pvs, const vec3_t mins, const vec3_t maxs)
109 int clusterindex, side, nodestackindex = 0;
110 mnode_t *node, *nodestack[1024];
111 if (!model->brush.num_pvsclusters)
113 node = model->brush.data_nodes;
118 // node - recurse down the BSP tree
119 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];
135 // leaf - check cluster bit
136 clusterindex = ((mleaf_t *)node)->clusterindex;
137 if (CHECKPVSBIT(pvs, clusterindex))
139 // it is visible, return immediately with the news
144 // nothing to see here, try another path we didn't take earlier
145 if (nodestackindex == 0)
147 node = nodestack[--nodestackindex];
155 static int Mod_Q1BSP_BoxTouchingLeafPVS(model_t *model, const qbyte *pvs, const vec3_t mins, const vec3_t maxs)
157 int clusterindex, side, nodestackindex = 0;
158 mnode_t *node, *nodestack[1024];
159 if (!model->brush.num_leafs)
161 node = model->brush.data_nodes;
166 // node - recurse down the BSP tree
167 side = BoxOnPlaneSide(mins, maxs, node->plane) - 1;
170 // box is on one side of plane, take that path
171 node = node->children[side];
175 // box crosses plane, take one path and remember the other
176 if (nodestackindex < 1024)
177 nodestack[nodestackindex++] = node->children[0];
178 node = node->children[1];
183 // leaf - check cluster bit
184 clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
185 if (CHECKPVSBIT(pvs, clusterindex))
187 // it is visible, return immediately with the news
192 // nothing to see here, try another path we didn't take earlier
193 if (nodestackindex == 0)
195 node = nodestack[--nodestackindex];
203 static int Mod_Q1BSP_BoxTouchingVisibleLeafs(model_t *model, const qbyte *visibleleafs, const vec3_t mins, const vec3_t maxs)
205 int side, nodestackindex = 0;
206 mnode_t *node, *nodestack[1024];
207 node = model->brush.data_nodes;
212 // node - recurse down the BSP tree
213 side = BoxOnPlaneSide(mins, maxs, node->plane) - 1;
216 // box is on one side of plane, take that path
217 node = node->children[side];
221 // box crosses plane, take one path and remember the other
222 if (nodestackindex < 1024)
223 nodestack[nodestackindex++] = node->children[0];
224 node = node->children[1];
229 // leaf - check if it is visible
230 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
232 // it is visible, return immediately with the news
237 // nothing to see here, try another path we didn't take earlier
238 if (nodestackindex == 0)
240 node = nodestack[--nodestackindex];
248 typedef struct findnonsolidlocationinfo_s
256 findnonsolidlocationinfo_t;
258 static void Mod_Q1BSP_FindNonSolidLocation_r_Leaf(findnonsolidlocationinfo_t *info, mleaf_t *leaf)
260 int i, surfacenum, k, *tri, *mark;
261 float dist, f, vert[3][3], edge[3][3], facenormal[3], edgenormal[3][3], point[3];
263 for (surfacenum = 0, mark = leaf->firstleafsurface;surfacenum < leaf->numleafsurfaces;surfacenum++, mark++)
265 surface = info->model->data_surfaces + *mark;
266 if (surface->texture->supercontents & SUPERCONTENTS_SOLID)
268 for (k = 0;k < surface->num_triangles;k++)
270 tri = (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle) + k * 3;
271 VectorCopy((surface->groupmesh->data_vertex3f + tri[0] * 3), vert[0]);
272 VectorCopy((surface->groupmesh->data_vertex3f + tri[1] * 3), vert[1]);
273 VectorCopy((surface->groupmesh->data_vertex3f + tri[2] * 3), vert[2]);
274 VectorSubtract(vert[1], vert[0], edge[0]);
275 VectorSubtract(vert[2], vert[1], edge[1]);
276 CrossProduct(edge[1], edge[0], facenormal);
277 if (facenormal[0] || facenormal[1] || facenormal[2])
279 VectorNormalize(facenormal);
280 f = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
281 if (f <= info->bestdist && f >= -info->bestdist)
283 VectorSubtract(vert[0], vert[2], edge[2]);
284 VectorNormalize(edge[0]);
285 VectorNormalize(edge[1]);
286 VectorNormalize(edge[2]);
287 CrossProduct(facenormal, edge[0], edgenormal[0]);
288 CrossProduct(facenormal, edge[1], edgenormal[1]);
289 CrossProduct(facenormal, edge[2], edgenormal[2]);
291 if (DotProduct(info->center, edgenormal[0]) < DotProduct(vert[0], edgenormal[0])
292 && DotProduct(info->center, edgenormal[1]) < DotProduct(vert[1], edgenormal[1])
293 && DotProduct(info->center, edgenormal[2]) < DotProduct(vert[2], edgenormal[2]))
295 // we got lucky, the center is within the face
296 dist = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
300 if (info->bestdist > dist)
302 info->bestdist = dist;
303 VectorScale(facenormal, (info->radius - -dist), info->nudge);
308 if (info->bestdist > dist)
310 info->bestdist = dist;
311 VectorScale(facenormal, (info->radius - dist), info->nudge);
317 // check which edge or vertex the center is nearest
318 for (i = 0;i < 3;i++)
320 f = DotProduct(info->center, edge[i]);
321 if (f >= DotProduct(vert[0], edge[i])
322 && f <= DotProduct(vert[1], edge[i]))
325 VectorMA(info->center, -f, edge[i], point);
326 dist = sqrt(DotProduct(point, point));
327 if (info->bestdist > dist)
329 info->bestdist = dist;
330 VectorScale(point, (info->radius / dist), info->nudge);
332 // skip both vertex checks
333 // (both are further away than this edge)
338 // not on edge, check first vertex of edge
339 VectorSubtract(info->center, vert[i], point);
340 dist = sqrt(DotProduct(point, point));
341 if (info->bestdist > dist)
343 info->bestdist = dist;
344 VectorScale(point, (info->radius / dist), info->nudge);
356 static void Mod_Q1BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, mnode_t *node)
360 float f = PlaneDiff(info->center, node->plane);
361 if (f >= -info->bestdist)
362 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[0]);
363 if (f <= info->bestdist)
364 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[1]);
368 if (((mleaf_t *)node)->numleafsurfaces)
369 Mod_Q1BSP_FindNonSolidLocation_r_Leaf(info, (mleaf_t *)node);
373 static void Mod_Q1BSP_FindNonSolidLocation(model_t *model, const vec3_t in, vec3_t out, float radius)
376 findnonsolidlocationinfo_t info;
382 VectorCopy(in, info.center);
383 info.radius = radius;
388 VectorClear(info.nudge);
389 info.bestdist = radius;
390 Mod_Q1BSP_FindNonSolidLocation_r(&info, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
391 VectorAdd(info.center, info.nudge, info.center);
393 while (info.bestdist < radius && ++i < 10);
394 VectorCopy(info.center, out);
397 int Mod_Q1BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
399 switch(nativecontents)
404 return SUPERCONTENTS_SOLID;
406 return SUPERCONTENTS_WATER;
408 return SUPERCONTENTS_SLIME;
410 return SUPERCONTENTS_LAVA;
412 return SUPERCONTENTS_SKY;
417 int Mod_Q1BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
419 if (supercontents & SUPERCONTENTS_SOLID)
420 return CONTENTS_SOLID;
421 if (supercontents & SUPERCONTENTS_SKY)
423 if (supercontents & SUPERCONTENTS_LAVA)
424 return CONTENTS_LAVA;
425 if (supercontents & SUPERCONTENTS_SLIME)
426 return CONTENTS_SLIME;
427 if (supercontents & SUPERCONTENTS_WATER)
428 return CONTENTS_WATER;
429 return CONTENTS_EMPTY;
434 // the hull we're tracing through
437 // the trace structure to fill in
440 // start, end, and end - start (in model space)
445 RecursiveHullCheckTraceInfo_t;
447 // 1/32 epsilon to keep floating point happy
448 #define DIST_EPSILON (0.03125)
450 #define HULLCHECKSTATE_EMPTY 0
451 #define HULLCHECKSTATE_SOLID 1
452 #define HULLCHECKSTATE_DONE 2
454 static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int num, double p1f, double p2f, double p1[3], double p2[3])
456 // status variables, these don't need to be saved on the stack when
457 // recursing... but are because this should be thread-safe
458 // (note: tracing against a bbox is not thread-safe, yet)
463 // variables that need to be stored on the stack when recursing
468 // LordHavoc: a goto! everyone flee in terror... :)
473 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
474 if (!t->trace->startfound)
476 t->trace->startfound = true;
477 t->trace->startsupercontents |= num;
479 if (num & SUPERCONTENTS_LIQUIDSMASK)
480 t->trace->inwater = true;
482 t->trace->inopen = true;
483 if (num & t->trace->hitsupercontentsmask)
485 // if the first leaf is solid, set startsolid
486 if (t->trace->allsolid)
487 t->trace->startsolid = true;
488 #if COLLISIONPARANOID >= 3
491 return HULLCHECKSTATE_SOLID;
495 t->trace->allsolid = false;
496 #if COLLISIONPARANOID >= 3
499 return HULLCHECKSTATE_EMPTY;
503 // find the point distances
504 node = t->hull->clipnodes + num;
506 plane = t->hull->planes + node->planenum;
509 t1 = p1[plane->type] - plane->dist;
510 t2 = p2[plane->type] - plane->dist;
514 t1 = DotProduct (plane->normal, p1) - plane->dist;
515 t2 = DotProduct (plane->normal, p2) - plane->dist;
522 #if COLLISIONPARANOID >= 3
525 num = node->children[1];
534 #if COLLISIONPARANOID >= 3
537 num = node->children[0];
543 // the line intersects, find intersection point
544 // LordHavoc: this uses the original trace for maximum accuracy
545 #if COLLISIONPARANOID >= 3
550 t1 = t->start[plane->type] - plane->dist;
551 t2 = t->end[plane->type] - plane->dist;
555 t1 = DotProduct (plane->normal, t->start) - plane->dist;
556 t2 = DotProduct (plane->normal, t->end) - plane->dist;
559 midf = t1 / (t1 - t2);
560 midf = bound(p1f, midf, p2f);
561 VectorMA(t->start, midf, t->dist, mid);
563 // recurse both sides, front side first
564 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side], p1f, midf, p1, mid);
565 // if this side is not empty, return what it is (solid or done)
566 if (ret != HULLCHECKSTATE_EMPTY)
569 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side ^ 1], midf, p2f, mid, p2);
570 // if other side is not solid, return what it is (empty or done)
571 if (ret != HULLCHECKSTATE_SOLID)
574 // front is air and back is solid, this is the impact point...
577 t->trace->plane.dist = -plane->dist;
578 VectorNegate (plane->normal, t->trace->plane.normal);
582 t->trace->plane.dist = plane->dist;
583 VectorCopy (plane->normal, t->trace->plane.normal);
586 // calculate the true fraction
587 t1 = DotProduct(t->trace->plane.normal, t->start) - t->trace->plane.dist;
588 t2 = DotProduct(t->trace->plane.normal, t->end) - t->trace->plane.dist;
589 midf = t1 / (t1 - t2);
590 t->trace->realfraction = bound(0, midf, 1);
592 // calculate the return fraction which is nudged off the surface a bit
593 midf = (t1 - DIST_EPSILON) / (t1 - t2);
594 t->trace->fraction = bound(0, midf, 1);
596 #if COLLISIONPARANOID >= 3
599 return HULLCHECKSTATE_DONE;
602 #if COLLISIONPARANOID < 2
603 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
606 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];
607 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
608 t->trace->startsupercontents |= num;
609 if (num & SUPERCONTENTS_LIQUIDSMASK)
610 t->trace->inwater = true;
612 t->trace->inopen = true;
613 if (num & t->trace->hitsupercontentsmask)
615 t->trace->allsolid = t->trace->startsolid = true;
616 return HULLCHECKSTATE_SOLID;
620 t->trace->allsolid = t->trace->startsolid = false;
621 return HULLCHECKSTATE_EMPTY;
626 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)
628 // this function currently only supports same size start and end
630 RecursiveHullCheckTraceInfo_t rhc;
632 memset(&rhc, 0, sizeof(rhc));
633 memset(trace, 0, sizeof(trace_t));
635 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
636 rhc.trace->fraction = 1;
637 rhc.trace->realfraction = 1;
638 rhc.trace->allsolid = true;
639 VectorSubtract(boxstartmaxs, boxstartmins, boxsize);
641 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
642 else if (model->brush.ismcbsp)
644 if (boxsize[2] < 48) // pick the nearest of 40 or 56
645 rhc.hull = &model->brushq1.hulls[2]; // 16x16x40
647 rhc.hull = &model->brushq1.hulls[1]; // 16x16x56
649 else if (model->brush.ishlbsp)
651 // LordHavoc: this has to have a minor tolerance (the .1) because of
652 // minor float precision errors from the box being transformed around
653 if (boxsize[0] < 32.1)
655 if (boxsize[2] < 54) // pick the nearest of 36 or 72
656 rhc.hull = &model->brushq1.hulls[3]; // 32x32x36
658 rhc.hull = &model->brushq1.hulls[1]; // 32x32x72
661 rhc.hull = &model->brushq1.hulls[2]; // 64x64x64
665 // LordHavoc: this has to have a minor tolerance (the .1) because of
666 // minor float precision errors from the box being transformed around
667 if (boxsize[0] < 32.1)
668 rhc.hull = &model->brushq1.hulls[1]; // 32x32x56
670 rhc.hull = &model->brushq1.hulls[2]; // 64x64x88
672 VectorSubtract(boxstartmins, rhc.hull->clip_mins, rhc.start);
673 VectorSubtract(boxendmins, rhc.hull->clip_mins, rhc.end);
674 VectorSubtract(rhc.end, rhc.start, rhc.dist);
675 #if COLLISIONPARANOID >= 2
676 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]);
677 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
680 if (DotProduct(rhc.dist, rhc.dist))
681 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
683 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
687 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)
691 colplanef_t cbox_planes[6];
692 cbox.supercontents = boxsupercontents;
695 cbox.numtriangles = 0;
696 cbox.planes = cbox_planes;
698 cbox.elements = NULL;
706 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];
707 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];
708 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];
709 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];
710 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];
711 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];
712 memset(trace, 0, sizeof(trace_t));
713 trace->hitsupercontentsmask = hitsupercontentsmask;
715 trace->realfraction = 1;
716 Collision_TraceLineBrushFloat(trace, start, end, &cbox, &cbox);
718 RecursiveHullCheckTraceInfo_t rhc;
719 static hull_t box_hull;
720 static dclipnode_t box_clipnodes[6];
721 static mplane_t box_planes[6];
722 // fill in a default trace
723 memset(&rhc, 0, sizeof(rhc));
724 memset(trace, 0, sizeof(trace_t));
725 //To keep everything totally uniform, bounding boxes are turned into small
726 //BSP trees instead of being compared directly.
727 // create a temp hull from bounding box sizes
728 box_planes[0].dist = cmaxs[0] - mins[0];
729 box_planes[1].dist = cmins[0] - maxs[0];
730 box_planes[2].dist = cmaxs[1] - mins[1];
731 box_planes[3].dist = cmins[1] - maxs[1];
732 box_planes[4].dist = cmaxs[2] - mins[2];
733 box_planes[5].dist = cmins[2] - maxs[2];
734 #if COLLISIONPARANOID >= 3
735 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]);
738 if (box_hull.clipnodes == NULL)
742 //Set up the planes and clipnodes so that the six floats of a bounding box
743 //can just be stored out and get a proper hull_t structure.
745 box_hull.clipnodes = box_clipnodes;
746 box_hull.planes = box_planes;
747 box_hull.firstclipnode = 0;
748 box_hull.lastclipnode = 5;
750 for (i = 0;i < 6;i++)
752 box_clipnodes[i].planenum = i;
756 box_clipnodes[i].children[side] = CONTENTS_EMPTY;
758 box_clipnodes[i].children[side^1] = i + 1;
760 box_clipnodes[i].children[side^1] = CONTENTS_SOLID;
762 box_planes[i].type = i>>1;
763 box_planes[i].normal[i>>1] = 1;
767 // trace a line through the generated clipping hull
768 //rhc.boxsupercontents = boxsupercontents;
769 rhc.hull = &box_hull;
771 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
772 rhc.trace->fraction = 1;
773 rhc.trace->realfraction = 1;
774 rhc.trace->allsolid = true;
775 VectorCopy(start, rhc.start);
776 VectorCopy(end, rhc.end);
777 VectorSubtract(rhc.end, rhc.start, rhc.dist);
778 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
779 //VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
780 if (rhc.trace->startsupercontents)
781 rhc.trace->startsupercontents = boxsupercontents;
785 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)
787 int side, distz = endz - startz;
793 return false; // didn't hit anything
795 switch (node->plane->type)
798 node = node->children[x < node->plane->dist];
801 node = node->children[y < node->plane->dist];
804 side = startz < node->plane->dist;
805 if ((endz < node->plane->dist) == side)
807 node = node->children[side];
810 // found an intersection
811 mid = node->plane->dist;
814 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
815 front += startz * node->plane->normal[2];
816 back += endz * node->plane->normal[2];
817 side = front < node->plane->dist;
818 if ((back < node->plane->dist) == side)
820 node = node->children[side];
823 // found an intersection
824 mid = startz + distz * (front - node->plane->dist) / (front - back);
828 // go down front side
829 if (node->children[side]->plane && Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
830 return true; // hit something
833 // check for impact on this node
834 if (node->numsurfaces)
839 surface = model->data_surfaces + node->firstsurface;
840 for (i = 0;i < node->numsurfaces;i++, surface++)
842 if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->lightmapinfo->samples)
843 continue; // no lightmaps
845 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];
846 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];
848 if (ds >= 0 && ds < surface->lightmapinfo->extents[0] && dt >= 0 && dt < surface->lightmapinfo->extents[1])
851 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;
852 lmwidth = ((surface->lightmapinfo->extents[0]>>4)+1);
853 lmheight = ((surface->lightmapinfo->extents[1]>>4)+1);
854 line3 = lmwidth * 3; // LordHavoc: *3 for colored lighting
855 size3 = lmwidth * lmheight * 3; // LordHavoc: *3 for colored lighting
857 lightmap = surface->lightmapinfo->samples + ((dt>>4) * lmwidth + (ds>>4))*3; // LordHavoc: *3 for colored lighting
859 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++)
861 scale = d_lightstylevalue[surface->lightmapinfo->styles[maps]];
862 r00 += lightmap[ 0] * scale;g00 += lightmap[ 1] * scale;b00 += lightmap[ 2] * scale;
863 r01 += lightmap[ 3] * scale;g01 += lightmap[ 4] * scale;b01 += lightmap[ 5] * scale;
864 r10 += lightmap[line3+0] * scale;g10 += lightmap[line3+1] * scale;b10 += lightmap[line3+2] * scale;
865 r11 += lightmap[line3+3] * scale;g11 += lightmap[line3+4] * scale;b11 += lightmap[line3+5] * scale;
870 LordHavoc: here's the readable version of the interpolation
871 code, not quite as easy for the compiler to optimize...
873 dsfrac is the X position in the lightmap pixel, * 16
874 dtfrac is the Y position in the lightmap pixel, * 16
875 r00 is top left corner, r01 is top right corner
876 r10 is bottom left corner, r11 is bottom right corner
877 g and b are the same layout.
878 r0 and r1 are the top and bottom intermediate results
880 first we interpolate the top two points, to get the top
883 r0 = (((r01-r00) * dsfrac) >> 4) + r00;
884 g0 = (((g01-g00) * dsfrac) >> 4) + g00;
885 b0 = (((b01-b00) * dsfrac) >> 4) + b00;
887 then we interpolate the bottom two points, to get the
890 r1 = (((r11-r10) * dsfrac) >> 4) + r10;
891 g1 = (((g11-g10) * dsfrac) >> 4) + g10;
892 b1 = (((b11-b10) * dsfrac) >> 4) + b10;
894 then we interpolate the top and bottom samples to get the
895 middle sample (the one which was requested)
897 r = (((r1-r0) * dtfrac) >> 4) + r0;
898 g = (((g1-g0) * dtfrac) >> 4) + g0;
899 b = (((b1-b0) * dtfrac) >> 4) + b0;
902 ambientcolor[0] += (float) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)) * (1.0f / 32768.0f);
903 ambientcolor[1] += (float) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)) * (1.0f / 32768.0f);
904 ambientcolor[2] += (float) ((((((((b11-b10) * dsfrac) >> 4) + b10)-((((b01-b00) * dsfrac) >> 4) + b00)) * dtfrac) >> 4) + ((((b01-b00) * dsfrac) >> 4) + b00)) * (1.0f / 32768.0f);
905 return true; // success
911 node = node->children[side ^ 1];
913 distz = endz - startz;
918 void Mod_Q1BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
920 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);
923 static void Mod_Q1BSP_DecompressVis(const qbyte *in, const qbyte *inend, qbyte *out, qbyte *outend)
926 qbyte *outstart = out;
931 Con_Printf("Mod_Q1BSP_DecompressVis: input underrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
941 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);
944 for (c = *in++;c > 0;c--)
948 Con_Printf("Mod_Q1BSP_DecompressVis: output overrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
961 A sky texture is 256*128, with the right side being a masked overlay
964 void R_Q1BSP_LoadSplitSky (qbyte *src, int width, int height, int bytesperpixel)
967 unsigned solidpixels[128*128], alphapixels[128*128];
969 // if sky isn't the right size, just use it as a solid layer
970 if (width != 256 || height != 128)
972 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);
973 loadmodel->brush.alphaskytexture = NULL;;
977 if (bytesperpixel == 4)
979 for (i = 0;i < 128;i++)
981 for (j = 0;j < 128;j++)
983 solidpixels[(i*128) + j] = ((unsigned *)src)[i*256+j+128];
984 alphapixels[(i*128) + j] = ((unsigned *)src)[i*256+j];
990 // make an average value for the back to avoid
991 // a fringe on the top level
1000 for (i = 0;i < 128;i++)
1002 for (j = 0;j < 128;j++)
1004 rgba.i = palette_complete[src[i*256 + j + 128]];
1010 rgba.b[0] = r/(128*128);
1011 rgba.b[1] = g/(128*128);
1012 rgba.b[2] = b/(128*128);
1014 for (i = 0;i < 128;i++)
1016 for (j = 0;j < 128;j++)
1018 solidpixels[(i*128) + j] = palette_complete[src[i*256 + j + 128]];
1019 alphapixels[(i*128) + j] = (p = src[i*256 + j]) ? palette_complete[p] : rgba.i;
1024 loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", 128, 128, (qbyte *) solidpixels, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
1025 loadmodel->brush.alphaskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_alphatexture", 128, 128, (qbyte *) alphapixels, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
1028 static void Mod_Q1BSP_LoadTextures(lump_t *l)
1030 int i, j, k, num, max, altmax, mtwidth, mtheight, *dofs, incomplete;
1032 texture_t *tx, *tx2, *anims[10], *altanims[10];
1034 qbyte *data, *mtdata;
1037 loadmodel->data_textures = NULL;
1039 // add two slots for notexture walls and notexture liquids
1042 m = (dmiptexlump_t *)(mod_base + l->fileofs);
1043 m->nummiptex = LittleLong (m->nummiptex);
1044 loadmodel->num_textures = m->nummiptex + 2;
1049 loadmodel->num_textures = 2;
1052 loadmodel->data_textures = Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
1054 // fill out all slots with notexture
1055 for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
1057 strcpy(tx->name, "NO TEXTURE FOUND");
1060 tx->skin.base = r_texture_notexture;
1061 tx->basematerialflags = 0;
1062 if (i == loadmodel->num_textures - 1)
1064 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES;
1065 tx->supercontents = SUPERCONTENTS_WATER;
1069 tx->basematerialflags |= MATERIALFLAG_WALL;
1070 tx->supercontents = SUPERCONTENTS_SOLID;
1072 tx->currentframe = tx;
1078 // just to work around bounds checking when debugging with it (array index out of bounds error thing)
1080 // LordHavoc: mostly rewritten map texture loader
1081 for (i = 0;i < m->nummiptex;i++)
1083 dofs[i] = LittleLong(dofs[i]);
1084 if (dofs[i] == -1 || r_nosurftextures.integer)
1086 dmiptex = (miptex_t *)((qbyte *)m + dofs[i]);
1088 // make sure name is no more than 15 characters
1089 for (j = 0;dmiptex->name[j] && j < 15;j++)
1090 name[j] = dmiptex->name[j];
1093 mtwidth = LittleLong(dmiptex->width);
1094 mtheight = LittleLong(dmiptex->height);
1096 j = LittleLong(dmiptex->offsets[0]);
1100 if (j < 40 || j + mtwidth * mtheight > l->filelen)
1102 Con_Printf("Texture \"%s\" in \"%s\"is corrupt or incomplete\n", dmiptex->name, loadmodel->name);
1105 mtdata = (qbyte *)dmiptex + j;
1108 if ((mtwidth & 15) || (mtheight & 15))
1109 Con_Printf("warning: texture \"%s\" in \"%s\" is not 16 aligned\n", dmiptex->name, loadmodel->name);
1111 // LordHavoc: force all names to lowercase
1112 for (j = 0;name[j];j++)
1113 if (name[j] >= 'A' && name[j] <= 'Z')
1114 name[j] += 'a' - 'A';
1116 tx = loadmodel->data_textures + i;
1117 strcpy(tx->name, name);
1118 tx->width = mtwidth;
1119 tx->height = mtheight;
1123 sprintf(tx->name, "unnamed%i", i);
1124 Con_Printf("warning: unnamed texture in %s, renaming to %s\n", loadmodel->name, tx->name);
1127 // LordHavoc: HL sky textures are entirely different than quake
1128 if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == 256 && mtheight == 128)
1130 if (loadmodel->isworldmodel)
1132 data = loadimagepixels(tx->name, false, 0, 0);
1135 R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1138 else if (mtdata != NULL)
1139 R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1144 if (!Mod_LoadSkinFrame(&tx->skin, tx->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, tx->name[0] != '*', true))
1146 // did not find external texture, load it from the bsp or wad3
1147 if (loadmodel->brush.ishlbsp)
1149 // internal texture overrides wad
1150 qbyte *pixels, *freepixels, *fogpixels;
1151 pixels = freepixels = NULL;
1153 pixels = W_ConvertWAD3Texture(dmiptex);
1155 pixels = freepixels = W_GetTexture(tx->name);
1158 tx->width = image_width;
1159 tx->height = image_height;
1160 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);
1161 if (Image_CheckAlpha(pixels, image_width * image_height, true))
1163 fogpixels = Mem_Alloc(tempmempool, image_width * image_height * 4);
1164 for (j = 0;j < image_width * image_height * 4;j += 4)
1166 fogpixels[j + 0] = 255;
1167 fogpixels[j + 1] = 255;
1168 fogpixels[j + 2] = 255;
1169 fogpixels[j + 3] = pixels[j + 3];
1171 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);
1172 Mem_Free(fogpixels);
1176 Mem_Free(freepixels);
1178 else if (mtdata) // texture included
1179 Mod_LoadSkinFrame_Internal(&tx->skin, tx->name, TEXF_MIPMAP | TEXF_PRECACHE | TEXF_PICMIP, false, tx->name[0] != '*', tx->name[0] != '*' && r_fullbrights.integer, mtdata, tx->width, tx->height);
1182 if (tx->skin.base == NULL)
1187 tx->skin.base = r_texture_notexture;
1190 tx->basematerialflags = 0;
1191 if (tx->name[0] == '*')
1193 // turb does not block movement
1194 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES;
1195 // LordHavoc: some turbulent textures should be fullbright and solid
1196 if (!strncmp(tx->name,"*lava",5)
1197 || !strncmp(tx->name,"*teleport",9)
1198 || !strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1199 tx->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
1201 tx->basematerialflags |= MATERIALFLAG_WATERALPHA;
1202 if (!strncmp(tx->name, "*lava", 5))
1203 tx->supercontents = SUPERCONTENTS_LAVA;
1204 else if (!strncmp(tx->name, "*slime", 6))
1205 tx->supercontents = SUPERCONTENTS_SLIME;
1207 tx->supercontents = SUPERCONTENTS_WATER;
1209 else if (tx->name[0] == 's' && tx->name[1] == 'k' && tx->name[2] == 'y')
1211 tx->supercontents = SUPERCONTENTS_SKY;
1212 tx->basematerialflags |= MATERIALFLAG_SKY;
1216 tx->supercontents = SUPERCONTENTS_SOLID;
1217 tx->basematerialflags |= MATERIALFLAG_WALL;
1220 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT;
1222 // start out with no animation
1223 tx->currentframe = tx;
1226 // sequence the animations
1227 for (i = 0;i < m->nummiptex;i++)
1229 tx = loadmodel->data_textures + i;
1230 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1232 if (tx->anim_total[0] || tx->anim_total[1])
1233 continue; // already sequenced
1235 // find the number of frames in the animation
1236 memset(anims, 0, sizeof(anims));
1237 memset(altanims, 0, sizeof(altanims));
1239 for (j = i;j < m->nummiptex;j++)
1241 tx2 = loadmodel->data_textures + j;
1242 if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
1246 if (num >= '0' && num <= '9')
1247 anims[num - '0'] = tx2;
1248 else if (num >= 'a' && num <= 'j')
1249 altanims[num - 'a'] = tx2;
1251 Con_Printf("Bad animating texture %s\n", tx->name);
1255 for (j = 0;j < 10;j++)
1262 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
1265 for (j = 0;j < max;j++)
1269 Con_Printf("Missing frame %i of %s\n", j, tx->name);
1273 for (j = 0;j < altmax;j++)
1277 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
1286 // if there is no alternate animation, duplicate the primary
1287 // animation into the alternate
1289 for (k = 0;k < 10;k++)
1290 altanims[k] = anims[k];
1293 // link together the primary animation
1294 for (j = 0;j < max;j++)
1297 tx2->animated = true;
1298 tx2->anim_total[0] = max;
1299 tx2->anim_total[1] = altmax;
1300 for (k = 0;k < 10;k++)
1302 tx2->anim_frames[0][k] = anims[k];
1303 tx2->anim_frames[1][k] = altanims[k];
1307 // if there really is an alternate anim...
1308 if (anims[0] != altanims[0])
1310 // link together the alternate animation
1311 for (j = 0;j < altmax;j++)
1314 tx2->animated = true;
1315 // the primary/alternate are reversed here
1316 tx2->anim_total[0] = altmax;
1317 tx2->anim_total[1] = max;
1318 for (k = 0;k < 10;k++)
1320 tx2->anim_frames[0][k] = altanims[k];
1321 tx2->anim_frames[1][k] = anims[k];
1328 static void Mod_Q1BSP_LoadLighting(lump_t *l)
1331 qbyte *in, *out, *data, d;
1332 char litfilename[1024];
1333 loadmodel->brushq1.lightdata = NULL;
1334 if (loadmodel->brush.ishlbsp) // LordHavoc: load the colored lighting data straight
1336 loadmodel->brushq1.lightdata = Mem_Alloc(loadmodel->mempool, l->filelen);
1337 for (i=0; i<l->filelen; i++)
1338 loadmodel->brushq1.lightdata[i] = mod_base[l->fileofs+i] >>= 1;
1340 else if (loadmodel->brush.ismcbsp)
1342 loadmodel->brushq1.lightdata = Mem_Alloc(loadmodel->mempool, l->filelen);
1343 memcpy(loadmodel->brushq1.lightdata, mod_base + l->fileofs, l->filelen);
1345 else // LordHavoc: bsp version 29 (normal white lighting)
1347 // LordHavoc: hope is not lost yet, check for a .lit file to load
1348 strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
1349 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
1350 strlcat (litfilename, ".lit", sizeof (litfilename));
1351 data = (qbyte*) FS_LoadFile(litfilename, tempmempool, false);
1354 if (fs_filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1356 i = LittleLong(((int *)data)[1]);
1359 Con_DPrintf("loaded %s\n", litfilename);
1360 loadmodel->brushq1.lightdata = Mem_Alloc(loadmodel->mempool, fs_filesize - 8);
1361 memcpy(loadmodel->brushq1.lightdata, data + 8, fs_filesize - 8);
1367 Con_Printf("Unknown .lit file version (%d)\n", i);
1373 if (fs_filesize == 8)
1374 Con_Print("Empty .lit file, ignoring\n");
1376 Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", fs_filesize, 8 + l->filelen * 3);
1380 // LordHavoc: oh well, expand the white lighting data
1383 loadmodel->brushq1.lightdata = Mem_Alloc(loadmodel->mempool, l->filelen*3);
1384 in = loadmodel->brushq1.lightdata + l->filelen*2; // place the file at the end, so it will not be overwritten until the very last write
1385 out = loadmodel->brushq1.lightdata;
1386 memcpy(in, mod_base + l->fileofs, l->filelen);
1387 for (i = 0;i < l->filelen;i++)
1397 static void Mod_Q1BSP_LoadLightList(void)
1399 int a, n, numlights;
1400 char tempchar, *s, *t, *lightsstring, lightsfilename[1024];
1403 strlcpy (lightsfilename, loadmodel->name, sizeof (lightsfilename));
1404 FS_StripExtension (lightsfilename, lightsfilename, sizeof(lightsfilename));
1405 strlcat (lightsfilename, ".lights", sizeof (lightsfilename));
1406 s = lightsstring = (char *) FS_LoadFile(lightsfilename, tempmempool, false);
1412 while (*s && *s != '\n' && *s != '\r')
1416 Mem_Free(lightsstring);
1417 Con_Printf("lights file must end with a newline\n");
1423 loadmodel->brushq1.lights = Mem_Alloc(loadmodel->mempool, numlights * sizeof(mlight_t));
1426 while (*s && n < numlights)
1429 while (*s && *s != '\n' && *s != '\r')
1433 Con_Printf("misparsed lights file!\n");
1436 e = loadmodel->brushq1.lights + n;
1439 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);
1443 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);
1453 Con_Printf("misparsed lights file!\n");
1454 loadmodel->brushq1.numlights = numlights;
1455 Mem_Free(lightsstring);
1459 static void Mod_Q1BSP_LoadVisibility(lump_t *l)
1461 loadmodel->brushq1.num_compressedpvs = 0;
1462 loadmodel->brushq1.data_compressedpvs = NULL;
1465 loadmodel->brushq1.num_compressedpvs = l->filelen;
1466 loadmodel->brushq1.data_compressedpvs = Mem_Alloc(loadmodel->mempool, l->filelen);
1467 memcpy(loadmodel->brushq1.data_compressedpvs, mod_base + l->fileofs, l->filelen);
1470 // used only for HalfLife maps
1471 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
1473 char key[128], value[4096];
1478 if (!COM_ParseToken(&data, false))
1480 if (com_token[0] != '{')
1484 if (!COM_ParseToken(&data, false))
1486 if (com_token[0] == '}')
1487 break; // end of worldspawn
1488 if (com_token[0] == '_')
1489 strcpy(key, com_token + 1);
1491 strcpy(key, com_token);
1492 while (key[strlen(key)-1] == ' ') // remove trailing spaces
1493 key[strlen(key)-1] = 0;
1494 if (!COM_ParseToken(&data, false))
1496 strcpy(value, com_token);
1497 if (!strcmp("wad", key)) // for HalfLife maps
1499 if (loadmodel->brush.ishlbsp)
1502 for (i = 0;i < 4096;i++)
1503 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
1509 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
1510 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
1512 else if (value[i] == ';' || value[i] == 0)
1516 strcpy(wadname, "textures/");
1517 strcat(wadname, &value[j]);
1518 W_LoadTextureWadFile(wadname, false);
1530 static void Mod_Q1BSP_LoadEntities(lump_t *l)
1532 loadmodel->brush.entities = NULL;
1535 loadmodel->brush.entities = Mem_Alloc(loadmodel->mempool, l->filelen);
1536 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
1537 if (loadmodel->brush.ishlbsp)
1538 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
1542 static void Mod_Q1BSP_LoadVertexes(lump_t *l)
1548 in = (void *)(mod_base + l->fileofs);
1549 if (l->filelen % sizeof(*in))
1550 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
1551 count = l->filelen / sizeof(*in);
1552 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1554 loadmodel->brushq1.vertexes = out;
1555 loadmodel->brushq1.numvertexes = count;
1557 for ( i=0 ; i<count ; i++, in++, out++)
1559 out->position[0] = LittleFloat(in->point[0]);
1560 out->position[1] = LittleFloat(in->point[1]);
1561 out->position[2] = LittleFloat(in->point[2]);
1565 static void Mod_Q1BSP_LoadSubmodels(lump_t *l)
1571 in = (void *)(mod_base + l->fileofs);
1572 if (l->filelen % sizeof(*in))
1573 Host_Error("Mod_Q1BSP_LoadSubmodels: funny lump size in %s",loadmodel->name);
1574 count = l->filelen / sizeof(*in);
1575 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1577 loadmodel->brushq1.submodels = out;
1578 loadmodel->brush.numsubmodels = count;
1580 for ( i=0 ; i<count ; i++, in++, out++)
1582 for (j=0 ; j<3 ; j++)
1584 // spread the mins / maxs by a pixel
1585 out->mins[j] = LittleFloat(in->mins[j]) - 1;
1586 out->maxs[j] = LittleFloat(in->maxs[j]) + 1;
1587 out->origin[j] = LittleFloat(in->origin[j]);
1589 for (j=0 ; j<MAX_MAP_HULLS ; j++)
1590 out->headnode[j] = LittleLong(in->headnode[j]);
1591 out->visleafs = LittleLong(in->visleafs);
1592 out->firstface = LittleLong(in->firstface);
1593 out->numfaces = LittleLong(in->numfaces);
1597 static void Mod_Q1BSP_LoadEdges(lump_t *l)
1603 in = (void *)(mod_base + l->fileofs);
1604 if (l->filelen % sizeof(*in))
1605 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
1606 count = l->filelen / sizeof(*in);
1607 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1609 loadmodel->brushq1.edges = out;
1610 loadmodel->brushq1.numedges = count;
1612 for ( i=0 ; i<count ; i++, in++, out++)
1614 out->v[0] = (unsigned short)LittleShort(in->v[0]);
1615 out->v[1] = (unsigned short)LittleShort(in->v[1]);
1619 static void Mod_Q1BSP_LoadTexinfo(lump_t *l)
1623 int i, j, k, count, miptex;
1625 in = (void *)(mod_base + l->fileofs);
1626 if (l->filelen % sizeof(*in))
1627 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
1628 count = l->filelen / sizeof(*in);
1629 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1631 loadmodel->brushq1.texinfo = out;
1632 loadmodel->brushq1.numtexinfo = count;
1634 for (i = 0;i < count;i++, in++, out++)
1636 for (k = 0;k < 2;k++)
1637 for (j = 0;j < 4;j++)
1638 out->vecs[k][j] = LittleFloat(in->vecs[k][j]);
1640 miptex = LittleLong(in->miptex);
1641 out->flags = LittleLong(in->flags);
1643 out->texture = NULL;
1644 if (loadmodel->data_textures)
1646 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
1647 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
1649 out->texture = loadmodel->data_textures + miptex;
1651 if (out->flags & TEX_SPECIAL)
1653 // if texture chosen is NULL or the shader needs a lightmap,
1654 // force to notexture water shader
1655 if (out->texture == NULL || out->texture->basematerialflags & MATERIALFLAG_WALL)
1656 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 1);
1660 // if texture chosen is NULL, force to notexture
1661 if (out->texture == NULL)
1662 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 2);
1668 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
1673 mins[0] = mins[1] = mins[2] = 9999;
1674 maxs[0] = maxs[1] = maxs[2] = -9999;
1676 for (i = 0;i < numverts;i++)
1678 for (j = 0;j < 3;j++, v++)
1688 #define MAX_SUBDIVPOLYTRIANGLES 4096
1689 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
1691 static int subdivpolyverts, subdivpolytriangles;
1692 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
1693 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
1695 static int subdivpolylookupvert(vec3_t v)
1698 for (i = 0;i < subdivpolyverts;i++)
1699 if (subdivpolyvert[i][0] == v[0]
1700 && subdivpolyvert[i][1] == v[1]
1701 && subdivpolyvert[i][2] == v[2])
1703 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
1704 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
1705 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
1706 return subdivpolyverts++;
1709 static void SubdividePolygon(int numverts, float *verts)
1711 int i, i1, i2, i3, f, b, c, p;
1712 vec3_t mins, maxs, front[256], back[256];
1713 float m, *pv, *cv, dist[256], frac;
1716 Host_Error("SubdividePolygon: ran out of verts in buffer");
1718 BoundPoly(numverts, verts, mins, maxs);
1720 for (i = 0;i < 3;i++)
1722 m = (mins[i] + maxs[i]) * 0.5;
1723 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
1724 if (maxs[i] - m < 8)
1726 if (m - mins[i] < 8)
1730 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
1731 dist[c] = cv[i] - m;
1734 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
1738 VectorCopy(pv, front[f]);
1743 VectorCopy(pv, back[b]);
1746 if (dist[p] == 0 || dist[c] == 0)
1748 if ((dist[p] > 0) != (dist[c] > 0) )
1751 frac = dist[p] / (dist[p] - dist[c]);
1752 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
1753 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
1754 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
1760 SubdividePolygon(f, front[0]);
1761 SubdividePolygon(b, back[0]);
1765 i1 = subdivpolylookupvert(verts);
1766 i2 = subdivpolylookupvert(verts + 3);
1767 for (i = 2;i < numverts;i++)
1769 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
1771 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
1775 i3 = subdivpolylookupvert(verts + i * 3);
1776 subdivpolyindex[subdivpolytriangles][0] = i1;
1777 subdivpolyindex[subdivpolytriangles][1] = i2;
1778 subdivpolyindex[subdivpolytriangles][2] = i3;
1780 subdivpolytriangles++;
1784 //Breaks a polygon up along axial 64 unit
1785 //boundaries so that turbulent and sky warps
1786 //can be done reasonably.
1787 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
1793 subdivpolytriangles = 0;
1794 subdivpolyverts = 0;
1795 SubdividePolygon(surface->num_vertices, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex));
1796 if (subdivpolytriangles < 1)
1797 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?\n");
1799 surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
1800 mesh->num_vertices = subdivpolyverts;
1801 mesh->num_triangles = subdivpolytriangles;
1802 mesh->vertex = (surfvertex_t *)(mesh + 1);
1803 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
1804 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
1806 for (i = 0;i < mesh->num_triangles;i++)
1807 for (j = 0;j < 3;j++)
1808 mesh->index[i*3+j] = subdivpolyindex[i][j];
1810 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
1812 VectorCopy(subdivpolyvert[i], v->v);
1813 v->st[0] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[0]);
1814 v->st[1] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[1]);
1819 static void Mod_Q1BSP_LoadFaces(lump_t *l)
1822 msurface_t *surface;
1823 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris;
1824 float texmins[2], texmaxs[2], val;
1826 in = (void *)(mod_base + l->fileofs);
1827 if (l->filelen % sizeof(*in))
1828 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
1829 count = l->filelen / sizeof(*in);
1830 loadmodel->data_surfaces = Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
1831 loadmodel->data_surfaces_lightmapinfo = Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
1833 loadmodel->num_surfaces = count;
1837 for (surfacenum = 0, in = (void *)(mod_base + l->fileofs);surfacenum < count;surfacenum++, in++)
1839 numedges = LittleShort(in->numedges);
1840 totalverts += numedges;
1841 totaltris += numedges - 2;
1844 // TODO: split up into multiple meshes as needed to avoid exceeding 65536
1846 loadmodel->nummeshes = 1;
1847 loadmodel->meshlist = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t *));
1848 loadmodel->meshlist[0] = Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, true, false, false);
1852 for (surfacenum = 0, in = (void *)(mod_base + l->fileofs), surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, in++, surface++)
1854 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
1856 // FIXME: validate edges, texinfo, etc?
1857 firstedge = LittleLong(in->firstedge);
1858 numedges = LittleShort(in->numedges);
1859 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)
1860 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)\n", firstedge, numedges, loadmodel->brushq1.numsurfedges);
1861 i = LittleShort(in->texinfo);
1862 if ((unsigned int) i >= (unsigned int) loadmodel->brushq1.numtexinfo)
1863 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)\n", i, loadmodel->brushq1.numtexinfo);
1864 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + i;
1865 surface->texture = surface->lightmapinfo->texinfo->texture;
1867 planenum = LittleShort(in->planenum);
1868 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
1869 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)\n", planenum, loadmodel->brush.num_planes);
1871 //surface->flags = surface->texture->flags;
1872 //if (LittleShort(in->side))
1873 // surface->flags |= SURF_PLANEBACK;
1874 //surface->plane = loadmodel->brush.data_planes + planenum;
1876 surface->groupmesh = loadmodel->meshlist[0];
1877 surface->num_firstvertex = totalverts;
1878 surface->num_vertices = numedges;
1879 surface->num_firsttriangle = totaltris;
1880 surface->num_triangles = numedges - 2;
1881 totalverts += numedges;
1882 totaltris += numedges - 2;
1884 // convert edges back to a normal polygon
1885 for (i = 0;i < surface->num_vertices;i++)
1887 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
1890 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
1892 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
1893 s = DotProduct(((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
1894 t = DotProduct(((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
1895 (surface->groupmesh->data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
1896 (surface->groupmesh->data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
1897 (surface->groupmesh->data_texcoorddetail2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s * (1.0f / 16.0f);
1898 (surface->groupmesh->data_texcoorddetail2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t * (1.0f / 16.0f);
1899 (surface->groupmesh->data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
1900 (surface->groupmesh->data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
1901 (surface->groupmesh->data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
1904 for (i = 0;i < surface->num_triangles;i++)
1906 (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
1907 (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
1908 (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
1911 // compile additional data about the surface geometry
1912 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);
1913 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex));
1915 // generate surface extents information
1916 texmins[0] = texmaxs[0] = DotProduct((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
1917 texmins[1] = texmaxs[1] = DotProduct((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
1918 for (i = 1;i < surface->num_vertices;i++)
1920 for (j = 0;j < 2;j++)
1922 val = DotProduct((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
1923 texmins[j] = min(texmins[j], val);
1924 texmaxs[j] = max(texmaxs[j], val);
1927 for (i = 0;i < 2;i++)
1929 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
1930 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
1933 smax = surface->lightmapinfo->extents[0] >> 4;
1934 tmax = surface->lightmapinfo->extents[1] >> 4;
1935 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
1936 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
1939 for (i = 0;i < MAXLIGHTMAPS;i++)
1940 surface->lightmapinfo->styles[i] = in->styles[i];
1941 // force lightmap upload on first time seeing the surface
1942 surface->cached_dlight = true;
1943 surface->lightmapinfo->lightmaptexturestride = 0;
1944 surface->lightmaptexture = NULL;
1945 i = LittleLong(in->lightofs);
1948 surface->lightmapinfo->samples = NULL;
1949 // give non-lightmapped water a 1x white lightmap
1950 if ((surface->texture->basematerialflags & MATERIALFLAG_WATER) && (surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
1952 surface->lightmapinfo->samples = Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
1953 surface->lightmapinfo->styles[0] = 0;
1954 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
1957 else if (loadmodel->brush.ishlbsp) // LordHavoc: HalfLife map (bsp version 30)
1958 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + i;
1959 else // LordHavoc: white lighting (bsp version 29)
1960 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (i * 3);
1962 if (!(surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
1965 float u, v, ubase, vbase, uscale, vscale;
1967 if (ssize > 256 || tsize > 256)
1968 Host_Error("Bad surface extents");
1969 // stainmap for permanent marks on walls
1970 surface->lightmapinfo->stainsamples = Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
1972 memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
1974 if (r_miplightmaps.integer)
1976 surface->lightmapinfo->lightmaptexturestride = ssize;
1977 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);
1981 surface->lightmapinfo->lightmaptexturestride = R_CompatibleFragmentWidth(ssize, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, 0);
1982 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);
1984 R_FragmentLocation(surface->lightmaptexture, NULL, NULL, &ubase, &vbase, &uscale, &vscale);
1985 uscale = (uscale - ubase) / ssize;
1986 vscale = (vscale - vbase) / tsize;
1988 for (i = 0;i < surface->num_vertices;i++)
1990 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);
1991 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);
1992 (surface->groupmesh->data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
1993 (surface->groupmesh->data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
1994 // LordHavoc: calc lightmap data offset for vertex lighting to use
1997 (surface->groupmesh->data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
2003 static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
2006 // Host_Error("Mod_Q1BSP_LoadNodes_RecursiveSetParent: runaway recursion\n");
2007 node->parent = parent;
2010 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
2011 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
2015 static void Mod_Q1BSP_LoadNodes(lump_t *l)
2021 in = (void *)(mod_base + l->fileofs);
2022 if (l->filelen % sizeof(*in))
2023 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
2024 count = l->filelen / sizeof(*in);
2025 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2027 loadmodel->brush.data_nodes = out;
2028 loadmodel->brush.num_nodes = count;
2030 for ( i=0 ; i<count ; i++, in++, out++)
2032 for (j=0 ; j<3 ; j++)
2034 out->mins[j] = LittleShort(in->mins[j]);
2035 out->maxs[j] = LittleShort(in->maxs[j]);
2038 p = LittleLong(in->planenum);
2039 out->plane = loadmodel->brush.data_planes + p;
2041 out->firstsurface = LittleShort(in->firstface);
2042 out->numsurfaces = LittleShort(in->numfaces);
2044 for (j=0 ; j<2 ; j++)
2046 p = LittleShort(in->children[j]);
2048 out->children[j] = loadmodel->brush.data_nodes + p;
2050 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + (-1 - p));
2054 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
2057 static void Mod_Q1BSP_LoadLeafs(lump_t *l)
2063 in = (void *)(mod_base + l->fileofs);
2064 if (l->filelen % sizeof(*in))
2065 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2066 count = l->filelen / sizeof(*in);
2067 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2069 loadmodel->brush.data_leafs = out;
2070 loadmodel->brush.num_leafs = count;
2071 // get visleafs from the submodel data
2072 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2073 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2074 loadmodel->brush.data_pvsclusters = Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2075 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2077 for ( i=0 ; i<count ; i++, in++, out++)
2079 for (j=0 ; j<3 ; j++)
2081 out->mins[j] = LittleShort(in->mins[j]);
2082 out->maxs[j] = LittleShort(in->maxs[j]);
2085 // FIXME: this function could really benefit from some error checking
2087 out->contents = LittleLong(in->contents);
2089 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + LittleShort(in->firstmarksurface);
2090 out->numleafsurfaces = LittleShort(in->nummarksurfaces);
2091 if (out->firstleafsurface < 0 || LittleShort(in->firstmarksurface) + out->numleafsurfaces > loadmodel->brush.num_leafsurfaces)
2093 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);
2094 out->firstleafsurface = NULL;
2095 out->numleafsurfaces = 0;
2098 out->clusterindex = i - 1;
2099 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
2100 out->clusterindex = -1;
2102 p = LittleLong(in->visofs);
2103 // ignore visofs errors on leaf 0 (solid)
2104 if (p >= 0 && out->clusterindex >= 0)
2106 if (p >= loadmodel->brushq1.num_compressedpvs)
2107 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
2109 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);
2112 for (j = 0;j < 4;j++)
2113 out->ambient_sound_level[j] = in->ambient_level[j];
2115 // FIXME: Insert caustics here
2119 static void Mod_Q1BSP_LoadClipnodes(lump_t *l)
2121 dclipnode_t *in, *out;
2125 in = (void *)(mod_base + l->fileofs);
2126 if (l->filelen % sizeof(*in))
2127 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
2128 count = l->filelen / sizeof(*in);
2129 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2131 loadmodel->brushq1.clipnodes = out;
2132 loadmodel->brushq1.numclipnodes = count;
2134 if (loadmodel->brush.ismcbsp)
2136 hull = &loadmodel->brushq1.hulls[1];
2137 hull->clipnodes = out;
2138 hull->firstclipnode = 0;
2139 hull->lastclipnode = count-1;
2140 hull->planes = loadmodel->brush.data_planes;
2141 hull->clip_mins[0] = -12;
2142 hull->clip_mins[1] = -12;
2143 hull->clip_mins[2] = -24;
2144 hull->clip_maxs[0] = 12;
2145 hull->clip_maxs[1] = 12;
2146 hull->clip_maxs[2] = 32;
2147 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2149 hull = &loadmodel->brushq1.hulls[2];
2150 hull->clipnodes = out;
2151 hull->firstclipnode = 0;
2152 hull->lastclipnode = count-1;
2153 hull->planes = loadmodel->brush.data_planes;
2154 hull->clip_mins[0] = -12;
2155 hull->clip_mins[1] = -12;
2156 hull->clip_mins[2] = -24;
2157 hull->clip_maxs[0] = 12;
2158 hull->clip_maxs[1] = 12;
2159 hull->clip_maxs[2] = 16;
2160 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2162 else if (loadmodel->brush.ishlbsp)
2164 hull = &loadmodel->brushq1.hulls[1];
2165 hull->clipnodes = out;
2166 hull->firstclipnode = 0;
2167 hull->lastclipnode = count-1;
2168 hull->planes = loadmodel->brush.data_planes;
2169 hull->clip_mins[0] = -16;
2170 hull->clip_mins[1] = -16;
2171 hull->clip_mins[2] = -36;
2172 hull->clip_maxs[0] = 16;
2173 hull->clip_maxs[1] = 16;
2174 hull->clip_maxs[2] = 36;
2175 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2177 hull = &loadmodel->brushq1.hulls[2];
2178 hull->clipnodes = out;
2179 hull->firstclipnode = 0;
2180 hull->lastclipnode = count-1;
2181 hull->planes = loadmodel->brush.data_planes;
2182 hull->clip_mins[0] = -32;
2183 hull->clip_mins[1] = -32;
2184 hull->clip_mins[2] = -32;
2185 hull->clip_maxs[0] = 32;
2186 hull->clip_maxs[1] = 32;
2187 hull->clip_maxs[2] = 32;
2188 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2190 hull = &loadmodel->brushq1.hulls[3];
2191 hull->clipnodes = out;
2192 hull->firstclipnode = 0;
2193 hull->lastclipnode = count-1;
2194 hull->planes = loadmodel->brush.data_planes;
2195 hull->clip_mins[0] = -16;
2196 hull->clip_mins[1] = -16;
2197 hull->clip_mins[2] = -18;
2198 hull->clip_maxs[0] = 16;
2199 hull->clip_maxs[1] = 16;
2200 hull->clip_maxs[2] = 18;
2201 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2205 hull = &loadmodel->brushq1.hulls[1];
2206 hull->clipnodes = out;
2207 hull->firstclipnode = 0;
2208 hull->lastclipnode = count-1;
2209 hull->planes = loadmodel->brush.data_planes;
2210 hull->clip_mins[0] = -16;
2211 hull->clip_mins[1] = -16;
2212 hull->clip_mins[2] = -24;
2213 hull->clip_maxs[0] = 16;
2214 hull->clip_maxs[1] = 16;
2215 hull->clip_maxs[2] = 32;
2216 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2218 hull = &loadmodel->brushq1.hulls[2];
2219 hull->clipnodes = out;
2220 hull->firstclipnode = 0;
2221 hull->lastclipnode = count-1;
2222 hull->planes = loadmodel->brush.data_planes;
2223 hull->clip_mins[0] = -32;
2224 hull->clip_mins[1] = -32;
2225 hull->clip_mins[2] = -24;
2226 hull->clip_maxs[0] = 32;
2227 hull->clip_maxs[1] = 32;
2228 hull->clip_maxs[2] = 64;
2229 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2232 for (i=0 ; i<count ; i++, out++, in++)
2234 out->planenum = LittleLong(in->planenum);
2235 out->children[0] = LittleShort(in->children[0]);
2236 out->children[1] = LittleShort(in->children[1]);
2237 if (out->children[0] >= count || out->children[1] >= count)
2238 Host_Error("Corrupt clipping hull(out of range child)\n");
2242 //Duplicate the drawing hull structure as a clipping hull
2243 static void Mod_Q1BSP_MakeHull0(void)
2250 hull = &loadmodel->brushq1.hulls[0];
2252 in = loadmodel->brush.data_nodes;
2253 out = Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(dclipnode_t));
2255 hull->clipnodes = out;
2256 hull->firstclipnode = 0;
2257 hull->lastclipnode = loadmodel->brush.num_nodes - 1;
2258 hull->planes = loadmodel->brush.data_planes;
2260 for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
2262 out->planenum = in->plane - loadmodel->brush.data_planes;
2263 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
2264 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
2268 static void Mod_Q1BSP_LoadLeaffaces(lump_t *l)
2273 in = (void *)(mod_base + l->fileofs);
2274 if (l->filelen % sizeof(*in))
2275 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
2276 loadmodel->brush.num_leafsurfaces = l->filelen / sizeof(*in);
2277 loadmodel->brush.data_leafsurfaces = Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
2279 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
2281 j = (unsigned) LittleShort(in[i]);
2282 if (j >= loadmodel->num_surfaces)
2283 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
2284 loadmodel->brush.data_leafsurfaces[i] = j;
2288 static void Mod_Q1BSP_LoadSurfedges(lump_t *l)
2293 in = (void *)(mod_base + l->fileofs);
2294 if (l->filelen % sizeof(*in))
2295 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
2296 loadmodel->brushq1.numsurfedges = l->filelen / sizeof(*in);
2297 loadmodel->brushq1.surfedges = Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
2299 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
2300 loadmodel->brushq1.surfedges[i] = LittleLong(in[i]);
2304 static void Mod_Q1BSP_LoadPlanes(lump_t *l)
2310 in = (void *)(mod_base + l->fileofs);
2311 if (l->filelen % sizeof(*in))
2312 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
2314 loadmodel->brush.num_planes = l->filelen / sizeof(*in);
2315 loadmodel->brush.data_planes = out = Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
2317 for (i = 0;i < loadmodel->brush.num_planes;i++, in++, out++)
2319 out->normal[0] = LittleFloat(in->normal[0]);
2320 out->normal[1] = LittleFloat(in->normal[1]);
2321 out->normal[2] = LittleFloat(in->normal[2]);
2322 out->dist = LittleFloat(in->dist);
2328 static void Mod_Q1BSP_LoadMapBrushes(void)
2332 int submodel, numbrushes;
2333 qboolean firstbrush;
2334 char *text, *maptext;
2335 char mapfilename[MAX_QPATH];
2336 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
2337 strlcat (mapfilename, ".map", sizeof (mapfilename));
2338 maptext = (qbyte*) FS_LoadFile(mapfilename, tempmempool, false);
2342 if (!COM_ParseToken(&data, false))
2347 if (!COM_ParseToken(&data, false))
2349 if (com_token[0] != '{')
2355 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
2358 if (!COM_ParseToken(&data, false))
2360 if (com_token[0] == '}')
2361 break; // end of entity
2362 if (com_token[0] == '{')
2369 if (submodel > loadmodel->brush.numsubmodels)
2371 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
2375 model = loadmodel->brush.submodels[submodel];
2382 if (!COM_ParseToken(&data, false))
2384 if (com_token[0] == '}')
2385 break; // end of brush
2386 // each brush face should be this format:
2387 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
2388 // FIXME: support hl .map format
2389 for (pointnum = 0;pointnum < 3;pointnum++)
2391 COM_ParseToken(&data, false);
2392 for (componentnum = 0;componentnum < 3;componentnum++)
2394 COM_ParseToken(&data, false);
2395 point[pointnum][componentnum] = atof(com_token);
2397 COM_ParseToken(&data, false);
2399 COM_ParseToken(&data, false);
2400 strlcpy(facetexture, com_token, sizeof(facetexture));
2401 COM_ParseToken(&data, false);
2402 //scroll_s = atof(com_token);
2403 COM_ParseToken(&data, false);
2404 //scroll_t = atof(com_token);
2405 COM_ParseToken(&data, false);
2406 //rotate = atof(com_token);
2407 COM_ParseToken(&data, false);
2408 //scale_s = atof(com_token);
2409 COM_ParseToken(&data, false);
2410 //scale_t = atof(com_token);
2411 TriangleNormal(point[0], point[1], point[2], planenormal);
2412 VectorNormalizeDouble(planenormal);
2413 planedist = DotProduct(point[0], planenormal);
2414 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
2424 #define MAX_PORTALPOINTS 64
2426 typedef struct portal_s
2429 mnode_t *nodes[2]; // [0] = front side of plane
2430 struct portal_s *next[2];
2432 double points[3*MAX_PORTALPOINTS];
2433 struct portal_s *chain; // all portals are linked into a list
2437 static portal_t *portalchain;
2444 static portal_t *AllocPortal(void)
2447 p = Mem_Alloc(loadmodel->mempool, sizeof(portal_t));
2448 p->chain = portalchain;
2453 static void FreePortal(portal_t *p)
2458 static void Mod_Q1BSP_RecursiveRecalcNodeBBox(mnode_t *node)
2460 // process only nodes (leafs already had their box calculated)
2464 // calculate children first
2465 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[0]);
2466 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[1]);
2468 // make combined bounding box from children
2469 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
2470 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
2471 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
2472 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
2473 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
2474 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
2477 static void Mod_Q1BSP_FinalizePortals(void)
2479 int i, j, numportals, numpoints;
2480 portal_t *p, *pnext;
2483 mleaf_t *leaf, *endleaf;
2485 // recalculate bounding boxes for all leafs(because qbsp is very sloppy)
2486 leaf = loadmodel->brush.data_leafs;
2487 endleaf = leaf + loadmodel->brush.num_leafs;
2488 for (;leaf < endleaf;leaf++)
2490 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
2491 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
2496 if (p->numpoints >= 3)
2498 for (i = 0;i < 2;i++)
2500 leaf = (mleaf_t *)p->nodes[i];
2501 for (j = 0;j < p->numpoints;j++)
2503 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
2504 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
2505 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
2506 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
2507 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
2508 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
2515 Mod_Q1BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes);
2517 // tally up portal and point counts
2523 // note: this check must match the one below or it will usually corrupt memory
2524 // 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
2525 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2528 numpoints += p->numpoints * 2;
2532 loadmodel->brush.data_portals = Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
2533 loadmodel->brush.num_portals = numportals;
2534 loadmodel->brush.data_portalpoints = (void *)((qbyte *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
2535 loadmodel->brush.num_portalpoints = numpoints;
2536 // clear all leaf portal chains
2537 for (i = 0;i < loadmodel->brush.num_leafs;i++)
2538 loadmodel->brush.data_leafs[i].portals = NULL;
2539 // process all portals in the global portal chain, while freeing them
2540 portal = loadmodel->brush.data_portals;
2541 point = loadmodel->brush.data_portalpoints;
2548 // note: this check must match the one above or it will usually corrupt memory
2549 // 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
2550 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2552 // first make the back to front portal(forward portal)
2553 portal->points = point;
2554 portal->numpoints = p->numpoints;
2555 portal->plane.dist = p->plane.dist;
2556 VectorCopy(p->plane.normal, portal->plane.normal);
2557 portal->here = (mleaf_t *)p->nodes[1];
2558 portal->past = (mleaf_t *)p->nodes[0];
2560 for (j = 0;j < portal->numpoints;j++)
2562 VectorCopy(p->points + j*3, point->position);
2565 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2566 PlaneClassify(&portal->plane);
2568 // link into leaf's portal chain
2569 portal->next = portal->here->portals;
2570 portal->here->portals = portal;
2572 // advance to next portal
2575 // then make the front to back portal(backward portal)
2576 portal->points = point;
2577 portal->numpoints = p->numpoints;
2578 portal->plane.dist = -p->plane.dist;
2579 VectorNegate(p->plane.normal, portal->plane.normal);
2580 portal->here = (mleaf_t *)p->nodes[0];
2581 portal->past = (mleaf_t *)p->nodes[1];
2583 for (j = portal->numpoints - 1;j >= 0;j--)
2585 VectorCopy(p->points + j*3, point->position);
2588 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2589 PlaneClassify(&portal->plane);
2591 // link into leaf's portal chain
2592 portal->next = portal->here->portals;
2593 portal->here->portals = portal;
2595 // advance to next portal
2608 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
2611 Host_Error("AddPortalToNodes: NULL front node");
2613 Host_Error("AddPortalToNodes: NULL back node");
2614 if (p->nodes[0] || p->nodes[1])
2615 Host_Error("AddPortalToNodes: already included");
2616 // 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
2618 p->nodes[0] = front;
2619 p->next[0] = (portal_t *)front->portals;
2620 front->portals = (mportal_t *)p;
2623 p->next[1] = (portal_t *)back->portals;
2624 back->portals = (mportal_t *)p;
2629 RemovePortalFromNode
2632 static void RemovePortalFromNodes(portal_t *portal)
2636 void **portalpointer;
2638 for (i = 0;i < 2;i++)
2640 node = portal->nodes[i];
2642 portalpointer = (void **) &node->portals;
2647 Host_Error("RemovePortalFromNodes: portal not in leaf");
2651 if (portal->nodes[0] == node)
2653 *portalpointer = portal->next[0];
2654 portal->nodes[0] = NULL;
2656 else if (portal->nodes[1] == node)
2658 *portalpointer = portal->next[1];
2659 portal->nodes[1] = NULL;
2662 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2666 if (t->nodes[0] == node)
2667 portalpointer = (void **) &t->next[0];
2668 else if (t->nodes[1] == node)
2669 portalpointer = (void **) &t->next[1];
2671 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2676 static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
2679 mnode_t *front, *back, *other_node;
2680 mplane_t clipplane, *plane;
2681 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
2682 int numfrontpoints, numbackpoints;
2683 double frontpoints[3*MAX_PORTALPOINTS], backpoints[3*MAX_PORTALPOINTS];
2685 // if a leaf, we're done
2689 plane = node->plane;
2691 front = node->children[0];
2692 back = node->children[1];
2694 Host_Error("Mod_Q1BSP_RecursiveNodePortals: corrupt node hierarchy");
2696 // create the new portal by generating a polygon for the node plane,
2697 // and clipping it by all of the other portals(which came from nodes above this one)
2698 nodeportal = AllocPortal();
2699 nodeportal->plane = *plane;
2701 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);
2702 nodeportal->numpoints = 4;
2703 side = 0; // shut up compiler warning
2704 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
2706 clipplane = portal->plane;
2707 if (portal->nodes[0] == portal->nodes[1])
2708 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(1)");
2709 if (portal->nodes[0] == node)
2711 else if (portal->nodes[1] == node)
2713 clipplane.dist = -clipplane.dist;
2714 VectorNegate(clipplane.normal, clipplane.normal);
2718 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2720 for (i = 0;i < nodeportal->numpoints*3;i++)
2721 frontpoints[i] = nodeportal->points[i];
2722 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);
2723 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
2727 if (nodeportal->numpoints < 3)
2729 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
2730 nodeportal->numpoints = 0;
2732 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
2734 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
2735 nodeportal->numpoints = 0;
2738 AddPortalToNodes(nodeportal, front, back);
2740 // split the portals of this node along this node's plane and assign them to the children of this node
2741 // (migrating the portals downward through the tree)
2742 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
2744 if (portal->nodes[0] == portal->nodes[1])
2745 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(2)");
2746 if (portal->nodes[0] == node)
2748 else if (portal->nodes[1] == node)
2751 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2752 nextportal = portal->next[side];
2753 if (!portal->numpoints)
2756 other_node = portal->nodes[!side];
2757 RemovePortalFromNodes(portal);
2759 // cut the portal into two portals, one on each side of the node plane
2760 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);
2762 if (!numfrontpoints)
2765 AddPortalToNodes(portal, back, other_node);
2767 AddPortalToNodes(portal, other_node, back);
2773 AddPortalToNodes(portal, front, other_node);
2775 AddPortalToNodes(portal, other_node, front);
2779 // the portal is split
2780 splitportal = AllocPortal();
2781 temp = splitportal->chain;
2782 *splitportal = *portal;
2783 splitportal->chain = temp;
2784 for (i = 0;i < numbackpoints*3;i++)
2785 splitportal->points[i] = backpoints[i];
2786 splitportal->numpoints = numbackpoints;
2787 for (i = 0;i < numfrontpoints*3;i++)
2788 portal->points[i] = frontpoints[i];
2789 portal->numpoints = numfrontpoints;
2793 AddPortalToNodes(portal, front, other_node);
2794 AddPortalToNodes(splitportal, back, other_node);
2798 AddPortalToNodes(portal, other_node, front);
2799 AddPortalToNodes(splitportal, other_node, back);
2803 Mod_Q1BSP_RecursiveNodePortals(front);
2804 Mod_Q1BSP_RecursiveNodePortals(back);
2807 static void Mod_Q1BSP_MakePortals(void)
2810 Mod_Q1BSP_RecursiveNodePortals(loadmodel->brush.data_nodes);
2811 Mod_Q1BSP_FinalizePortals();
2814 static void Mod_Q1BSP_BuildLightmapUpdateChains(mempool_t *mempool, model_t *model)
2816 int i, j, stylecounts[256], totalcount, remapstyles[256];
2817 msurface_t *surface;
2818 memset(stylecounts, 0, sizeof(stylecounts));
2819 for (i = 0;i < model->nummodelsurfaces;i++)
2821 surface = model->data_surfaces + model->firstmodelsurface + i;
2822 for (j = 0;j < MAXLIGHTMAPS;j++)
2823 stylecounts[surface->lightmapinfo->styles[j]]++;
2826 model->brushq1.light_styles = 0;
2827 for (i = 0;i < 255;i++)
2831 remapstyles[i] = model->brushq1.light_styles++;
2832 totalcount += stylecounts[i] + 1;
2837 model->brushq1.light_style = Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(qbyte));
2838 model->brushq1.light_stylevalue = Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(int));
2839 model->brushq1.light_styleupdatechains = Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(msurface_t **));
2840 model->brushq1.light_styleupdatechainsbuffer = Mem_Alloc(mempool, totalcount * sizeof(msurface_t *));
2841 model->brushq1.light_styles = 0;
2842 for (i = 0;i < 255;i++)
2844 model->brushq1.light_style[model->brushq1.light_styles++] = i;
2846 for (i = 0;i < model->brushq1.light_styles;i++)
2848 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
2849 j += stylecounts[model->brushq1.light_style[i]] + 1;
2851 for (i = 0;i < model->nummodelsurfaces;i++)
2853 surface = model->data_surfaces + model->firstmodelsurface + i;
2854 for (j = 0;j < MAXLIGHTMAPS;j++)
2855 if (surface->lightmapinfo->styles[j] != 255)
2856 *model->brushq1.light_styleupdatechains[remapstyles[surface->lightmapinfo->styles[j]]]++ = surface;
2859 for (i = 0;i < model->brushq1.light_styles;i++)
2861 *model->brushq1.light_styleupdatechains[i] = NULL;
2862 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
2863 j += stylecounts[model->brushq1.light_style[i]] + 1;
2867 //Returns PVS data for a given point
2868 //(note: can return NULL)
2869 static qbyte *Mod_Q1BSP_GetPVS(model_t *model, const vec3_t p)
2872 Mod_CheckLoaded(model);
2873 node = model->brush.data_nodes;
2875 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
2876 if (((mleaf_t *)node)->clusterindex >= 0)
2877 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
2882 static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, qbyte *pvsbuffer, int pvsbytes, mnode_t *node)
2886 float d = PlaneDiff(org, node->plane);
2888 node = node->children[0];
2889 else if (d < -radius)
2890 node = node->children[1];
2893 // go down both sides
2894 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
2895 node = node->children[1];
2898 // if this leaf is in a cluster, accumulate the pvs bits
2899 if (((mleaf_t *)node)->clusterindex >= 0)
2902 qbyte *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
2903 for (i = 0;i < pvsbytes;i++)
2904 pvsbuffer[i] |= pvs[i];
2908 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
2909 //of the given point.
2910 static int Mod_Q1BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, qbyte *pvsbuffer, int pvsbufferlength)
2912 int bytes = model->brush.num_pvsclusterbytes;
2913 bytes = min(bytes, pvsbufferlength);
2914 if (r_novis.integer || !model->brush.num_pvsclusters || !Mod_Q1BSP_GetPVS(model, org))
2916 memset(pvsbuffer, 0xFF, bytes);
2919 memset(pvsbuffer, 0, bytes);
2920 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes);
2924 static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
2929 VectorSubtract(inmaxs, inmins, size);
2930 if (cmodel->brush.ismcbsp)
2933 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
2934 else if (size[2] < 48) // pick the nearest of 40 or 56
2935 hull = &cmodel->brushq1.hulls[2]; // 16x16x40
2937 hull = &cmodel->brushq1.hulls[1]; // 16x16x56
2939 else if (cmodel->brush.ishlbsp)
2942 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
2943 else if (size[0] <= 32)
2945 if (size[2] < 54) // pick the nearest of 36 or 72
2946 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
2948 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
2951 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
2956 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
2957 else if (size[0] <= 32)
2958 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
2960 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
2962 VectorCopy(inmins, outmins);
2963 VectorAdd(inmins, hull->clip_size, outmaxs);
2966 extern void R_Q1BSP_DrawSky(entity_render_t *ent);
2967 extern void R_Q1BSP_Draw(entity_render_t *ent);
2968 extern void R_Q1BSP_GetLightInfo(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, vec3_t outmins, vec3_t outmaxs, int *outleaflist, qbyte *outleafpvs, int *outnumleafspointer, int *outsurfacelist, qbyte *outsurfacepvs, int *outnumsurfacespointer);
2969 extern void R_Q1BSP_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int numsurfaces, const int *surfacelist, const vec3_t lightmins, const vec3_t lightmaxs);
2970 extern void R_Q1BSP_DrawLight(entity_render_t *ent, float *lightcolor, int numsurfaces, const int *surfacelist);
2971 void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
2976 mempool_t *mainmempool;
2977 float dist, modelyawradius, modelradius, *vec;
2978 msurface_t *surface;
2979 int numshadowmeshtriangles;
2981 mod->type = mod_brushq1;
2983 if (!memcmp(buffer, "MCBSP", 5))
2985 header = (dheader_t *)((unsigned char*)buffer + 5);
2987 i = LittleLong(header->version);
2988 if (i != MCBSPVERSION)
2989 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(MCBSP %i should be %i", mod->name, i, MCBSPVERSION);
2990 mod->brush.ismcbsp = true;
2991 mod->brush.ishlbsp = false;
2995 header = (dheader_t *)buffer;
2997 i = LittleLong(header->version);
2998 if (i != BSPVERSION && i != 30)
2999 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i(Quake) or 30(HalfLife)", mod->name, i, BSPVERSION);
3000 mod->brush.ishlbsp = i == 30;
3003 mod->soundfromcenter = true;
3004 mod->TraceBox = Mod_Q1BSP_TraceBox;
3005 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3006 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3007 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
3008 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
3009 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
3010 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
3011 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
3012 mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
3013 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
3014 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3015 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3016 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
3018 if (loadmodel->isworldmodel)
3020 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3021 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3024 // swap all the lumps
3025 mod_base = (qbyte *)header;
3027 header->version = LittleLong(header->version);
3028 for (i = 0;i < HEADER_LUMPS;i++)
3030 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
3031 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
3036 // store which lightmap format to use
3037 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3039 Mod_Q1BSP_LoadEntities(&header->lumps[LUMP_ENTITIES]);
3040 Mod_Q1BSP_LoadVertexes(&header->lumps[LUMP_VERTEXES]);
3041 Mod_Q1BSP_LoadEdges(&header->lumps[LUMP_EDGES]);
3042 Mod_Q1BSP_LoadSurfedges(&header->lumps[LUMP_SURFEDGES]);
3043 Mod_Q1BSP_LoadTextures(&header->lumps[LUMP_TEXTURES]);
3044 Mod_Q1BSP_LoadLighting(&header->lumps[LUMP_LIGHTING]);
3045 Mod_Q1BSP_LoadPlanes(&header->lumps[LUMP_PLANES]);
3046 Mod_Q1BSP_LoadTexinfo(&header->lumps[LUMP_TEXINFO]);
3047 Mod_Q1BSP_LoadFaces(&header->lumps[LUMP_FACES]);
3048 Mod_Q1BSP_LoadLeaffaces(&header->lumps[LUMP_MARKSURFACES]);
3049 Mod_Q1BSP_LoadVisibility(&header->lumps[LUMP_VISIBILITY]);
3050 // load submodels before leafs because they contain the number of vis leafs
3051 Mod_Q1BSP_LoadSubmodels(&header->lumps[LUMP_MODELS]);
3052 Mod_Q1BSP_LoadLeafs(&header->lumps[LUMP_LEAFS]);
3053 Mod_Q1BSP_LoadNodes(&header->lumps[LUMP_NODES]);
3054 Mod_Q1BSP_LoadClipnodes(&header->lumps[LUMP_CLIPNODES]);
3056 if (!mod->brushq1.lightdata)
3057 mod->brush.LightPoint = NULL;
3059 if (mod->brushq1.data_compressedpvs)
3060 Mem_Free(mod->brushq1.data_compressedpvs);
3061 mod->brushq1.data_compressedpvs = NULL;
3062 mod->brushq1.num_compressedpvs = 0;
3064 Mod_Q1BSP_MakeHull0();
3065 Mod_Q1BSP_MakePortals();
3067 mod->numframes = 2; // regular and alternate animation
3070 mainmempool = mod->mempool;
3072 Mod_Q1BSP_LoadLightList();
3074 // make a single combined shadow mesh to allow optimized shadow volume creation
3075 numshadowmeshtriangles = 0;
3076 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3078 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
3079 numshadowmeshtriangles += surface->num_triangles;
3081 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
3082 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3083 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));
3084 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
3085 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
3087 if (loadmodel->brush.numsubmodels)
3088 loadmodel->brush.submodels = Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
3090 if (loadmodel->isworldmodel)
3092 // clear out any stale submodels or worldmodels lying around
3093 // if we did this clear before now, an error might abort loading and
3094 // leave things in a bad state
3095 Mod_RemoveStaleWorldModels(loadmodel);
3098 // LordHavoc: to clear the fog around the original quake submodel code, I
3100 // first of all, some background info on the submodels:
3101 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
3102 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
3103 // now the weird for loop itself:
3104 // the loop functions in an odd way, on each iteration it sets up the
3105 // current 'mod' model (which despite the confusing code IS the model of
3106 // the number i), at the end of the loop it duplicates the model to become
3107 // the next submodel, and loops back to set up the new submodel.
3109 // LordHavoc: now the explanation of my sane way (which works identically):
3110 // set up the world model, then on each submodel copy from the world model
3111 // and set up the submodel with the respective model info.
3112 for (i = 0;i < mod->brush.numsubmodels;i++)
3114 // LordHavoc: this code was originally at the end of this loop, but
3115 // has been transformed to something more readable at the start here.
3120 // LordHavoc: only register submodels if it is the world
3121 // (prevents external bsp models from replacing world submodels with
3123 if (!loadmodel->isworldmodel)
3125 // duplicate the basic information
3126 sprintf(name, "*%i", i);
3127 mod = Mod_FindName(name);
3128 // copy the base model to this one
3130 // rename the clone back to its proper name
3131 strcpy(mod->name, name);
3132 // textures and memory belong to the main model
3133 mod->texturepool = NULL;
3134 mod->mempool = NULL;
3137 mod->brush.submodel = i;
3139 if (loadmodel->brush.submodels)
3140 loadmodel->brush.submodels[i] = mod;
3142 bm = &mod->brushq1.submodels[i];
3144 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
3145 for (j=1 ; j<MAX_MAP_HULLS ; j++)
3147 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
3148 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
3151 mod->firstmodelsurface = bm->firstface;
3152 mod->nummodelsurfaces = bm->numfaces;
3154 // make the model surface list (used by shadowing/lighting)
3155 mod->surfacelist = Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
3156 for (j = 0;j < mod->nummodelsurfaces;j++)
3157 mod->surfacelist[j] = mod->firstmodelsurface + j;
3159 // this gets altered below if sky is used
3160 mod->DrawSky = NULL;
3161 mod->Draw = R_Q1BSP_Draw;
3162 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
3163 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
3164 mod->DrawLight = R_Q1BSP_DrawLight;
3167 mod->brush.GetPVS = NULL;
3168 mod->brush.FatPVS = NULL;
3169 mod->brush.BoxTouchingPVS = NULL;
3170 mod->brush.BoxTouchingLeafPVS = NULL;
3171 mod->brush.BoxTouchingVisibleLeafs = NULL;
3172 mod->brush.LightPoint = NULL;
3173 mod->brush.AmbientSoundLevelsForPoint = NULL;
3175 Mod_Q1BSP_BuildLightmapUpdateChains(loadmodel->mempool, mod);
3176 if (mod->nummodelsurfaces)
3178 // LordHavoc: calculate bmodel bounding box rather than trusting what it says
3179 mod->normalmins[0] = mod->normalmins[1] = mod->normalmins[2] = 1000000000.0f;
3180 mod->normalmaxs[0] = mod->normalmaxs[1] = mod->normalmaxs[2] = -1000000000.0f;
3183 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
3185 // we only need to have a drawsky function if it is used(usually only on world model)
3186 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
3187 mod->DrawSky = R_Q1BSP_DrawSky;
3188 // calculate bounding shapes
3189 for (k = 0, vec = (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex);k < surface->num_vertices;k++, vec += 3)
3191 if (mod->normalmins[0] > vec[0]) mod->normalmins[0] = vec[0];
3192 if (mod->normalmins[1] > vec[1]) mod->normalmins[1] = vec[1];
3193 if (mod->normalmins[2] > vec[2]) mod->normalmins[2] = vec[2];
3194 if (mod->normalmaxs[0] < vec[0]) mod->normalmaxs[0] = vec[0];
3195 if (mod->normalmaxs[1] < vec[1]) mod->normalmaxs[1] = vec[1];
3196 if (mod->normalmaxs[2] < vec[2]) mod->normalmaxs[2] = vec[2];
3197 dist = vec[0]*vec[0]+vec[1]*vec[1];
3198 if (modelyawradius < dist)
3199 modelyawradius = dist;
3200 dist += vec[2]*vec[2];
3201 if (modelradius < dist)
3205 modelyawradius = sqrt(modelyawradius);
3206 modelradius = sqrt(modelradius);
3207 mod->yawmins[0] = mod->yawmins[1] = - (mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius);
3208 mod->yawmins[2] = mod->normalmins[2];
3209 mod->yawmaxs[2] = mod->normalmaxs[2];
3210 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
3211 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
3212 mod->radius = modelradius;
3213 mod->radius2 = modelradius * modelradius;
3217 // LordHavoc: empty submodel(lacrima.bsp has such a glitch)
3218 Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
3220 //mod->brushq1.num_visleafs = bm->visleafs;
3223 Mod_Q1BSP_LoadMapBrushes();
3225 //Mod_Q1BSP_ProcessLightList();
3227 if (developer.integer)
3228 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);
3231 static void Mod_Q2BSP_LoadEntities(lump_t *l)
3235 static void Mod_Q2BSP_LoadPlanes(lump_t *l)
3242 in = (void *)(mod_base + l->fileofs);
3243 if (l->filelen % sizeof(*in))
3244 Host_Error("Mod_Q2BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
3245 count = l->filelen / sizeof(*in);
3246 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3249 loadmodel->num = count;
3251 for (i = 0;i < count;i++, in++, out++)
3257 static void Mod_Q2BSP_LoadVertices(lump_t *l)
3264 in = (void *)(mod_base + l->fileofs);
3265 if (l->filelen % sizeof(*in))
3266 Host_Error("Mod_Q2BSP_LoadVertices: funny lump size in %s",loadmodel->name);
3267 count = l->filelen / sizeof(*in);
3268 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3271 loadmodel->num = count;
3273 for (i = 0;i < count;i++, in++, out++)
3279 static void Mod_Q2BSP_LoadVisibility(lump_t *l)
3286 in = (void *)(mod_base + l->fileofs);
3287 if (l->filelen % sizeof(*in))
3288 Host_Error("Mod_Q2BSP_LoadVisibility: funny lump size in %s",loadmodel->name);
3289 count = l->filelen / sizeof(*in);
3290 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3293 loadmodel->num = count;
3295 for (i = 0;i < count;i++, in++, out++)
3301 static void Mod_Q2BSP_LoadNodes(lump_t *l)
3308 in = (void *)(mod_base + l->fileofs);
3309 if (l->filelen % sizeof(*in))
3310 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
3311 count = l->filelen / sizeof(*in);
3312 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3315 loadmodel->num = count;
3317 for (i = 0;i < count;i++, in++, out++)
3323 static void Mod_Q2BSP_LoadTexInfo(lump_t *l)
3330 in = (void *)(mod_base + l->fileofs);
3331 if (l->filelen % sizeof(*in))
3332 Host_Error("Mod_Q2BSP_LoadTexInfo: funny lump size in %s",loadmodel->name);
3333 count = l->filelen / sizeof(*in);
3334 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3337 loadmodel->num = count;
3339 for (i = 0;i < count;i++, in++, out++)
3345 static void Mod_Q2BSP_LoadFaces(lump_t *l)
3352 in = (void *)(mod_base + l->fileofs);
3353 if (l->filelen % sizeof(*in))
3354 Host_Error("Mod_Q2BSP_LoadFaces: funny lump size in %s",loadmodel->name);
3355 count = l->filelen / sizeof(*in);
3356 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3359 loadmodel->num = count;
3361 for (i = 0;i < count;i++, in++, out++)
3367 static void Mod_Q2BSP_LoadLighting(lump_t *l)
3374 in = (void *)(mod_base + l->fileofs);
3375 if (l->filelen % sizeof(*in))
3376 Host_Error("Mod_Q2BSP_LoadLighting: funny lump size in %s",loadmodel->name);
3377 count = l->filelen / sizeof(*in);
3378 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3381 loadmodel->num = count;
3383 for (i = 0;i < count;i++, in++, out++)
3389 static void Mod_Q2BSP_LoadLeafs(lump_t *l)
3396 in = (void *)(mod_base + l->fileofs);
3397 if (l->filelen % sizeof(*in))
3398 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
3399 count = l->filelen / sizeof(*in);
3400 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3403 loadmodel->num = count;
3405 for (i = 0;i < count;i++, in++, out++)
3411 static void Mod_Q2BSP_LoadLeafFaces(lump_t *l)
3418 in = (void *)(mod_base + l->fileofs);
3419 if (l->filelen % sizeof(*in))
3420 Host_Error("Mod_Q2BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
3421 count = l->filelen / sizeof(*in);
3422 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3425 loadmodel->num = count;
3427 for (i = 0;i < count;i++, in++, out++)
3433 static void Mod_Q2BSP_LoadLeafBrushes(lump_t *l)
3440 in = (void *)(mod_base + l->fileofs);
3441 if (l->filelen % sizeof(*in))
3442 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
3443 count = l->filelen / sizeof(*in);
3444 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3447 loadmodel->num = count;
3449 for (i = 0;i < count;i++, in++, out++)
3455 static void Mod_Q2BSP_LoadEdges(lump_t *l)
3462 in = (void *)(mod_base + l->fileofs);
3463 if (l->filelen % sizeof(*in))
3464 Host_Error("Mod_Q2BSP_LoadEdges: funny lump size in %s",loadmodel->name);
3465 count = l->filelen / sizeof(*in);
3466 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3469 loadmodel->num = count;
3471 for (i = 0;i < count;i++, in++, out++)
3477 static void Mod_Q2BSP_LoadSurfEdges(lump_t *l)
3484 in = (void *)(mod_base + l->fileofs);
3485 if (l->filelen % sizeof(*in))
3486 Host_Error("Mod_Q2BSP_LoadSurfEdges: funny lump size in %s",loadmodel->name);
3487 count = l->filelen / sizeof(*in);
3488 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3491 loadmodel->num = count;
3493 for (i = 0;i < count;i++, in++, out++)
3499 static void Mod_Q2BSP_LoadBrushes(lump_t *l)
3506 in = (void *)(mod_base + l->fileofs);
3507 if (l->filelen % sizeof(*in))
3508 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
3509 count = l->filelen / sizeof(*in);
3510 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3513 loadmodel->num = count;
3515 for (i = 0;i < count;i++, in++, out++)
3521 static void Mod_Q2BSP_LoadBrushSides(lump_t *l)
3528 in = (void *)(mod_base + l->fileofs);
3529 if (l->filelen % sizeof(*in))
3530 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
3531 count = l->filelen / sizeof(*in);
3532 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3535 loadmodel->num = count;
3537 for (i = 0;i < count;i++, in++, out++)
3543 static void Mod_Q2BSP_LoadAreas(lump_t *l)
3550 in = (void *)(mod_base + l->fileofs);
3551 if (l->filelen % sizeof(*in))
3552 Host_Error("Mod_Q2BSP_LoadAreas: funny lump size in %s",loadmodel->name);
3553 count = l->filelen / sizeof(*in);
3554 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3557 loadmodel->num = count;
3559 for (i = 0;i < count;i++, in++, out++)
3565 static void Mod_Q2BSP_LoadAreaPortals(lump_t *l)
3572 in = (void *)(mod_base + l->fileofs);
3573 if (l->filelen % sizeof(*in))
3574 Host_Error("Mod_Q2BSP_LoadAreaPortals: funny lump size in %s",loadmodel->name);
3575 count = l->filelen / sizeof(*in);
3576 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3579 loadmodel->num = count;
3581 for (i = 0;i < count;i++, in++, out++)
3587 static void Mod_Q2BSP_LoadModels(lump_t *l)
3594 in = (void *)(mod_base + l->fileofs);
3595 if (l->filelen % sizeof(*in))
3596 Host_Error("Mod_Q2BSP_LoadModels: funny lump size in %s",loadmodel->name);
3597 count = l->filelen / sizeof(*in);
3598 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3601 loadmodel->num = count;
3603 for (i = 0;i < count;i++, in++, out++)
3609 void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
3612 q2dheader_t *header;
3614 Host_Error("Mod_Q2BSP_Load: not yet implemented\n");
3616 mod->type = mod_brushq2;
3618 header = (q2dheader_t *)buffer;
3620 i = LittleLong(header->version);
3621 if (i != Q2BSPVERSION)
3622 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
3623 mod->brush.ishlbsp = false;
3624 mod->brush.ismcbsp = false;
3625 if (loadmodel->isworldmodel)
3627 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3628 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3631 mod_base = (qbyte *)header;
3633 // swap all the lumps
3634 for (i = 0;i < (int) sizeof(*header) / 4;i++)
3635 ((int *)header)[i] = LittleLong(((int *)header)[i]);
3637 // store which lightmap format to use
3638 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3640 Mod_Q2BSP_LoadEntities(&header->lumps[Q2LUMP_ENTITIES]);
3641 Mod_Q2BSP_LoadPlanes(&header->lumps[Q2LUMP_PLANES]);
3642 Mod_Q2BSP_LoadVertices(&header->lumps[Q2LUMP_VERTEXES]);
3643 Mod_Q2BSP_LoadVisibility(&header->lumps[Q2LUMP_VISIBILITY]);
3644 Mod_Q2BSP_LoadNodes(&header->lumps[Q2LUMP_NODES]);
3645 Mod_Q2BSP_LoadTexInfo(&header->lumps[Q2LUMP_TEXINFO]);
3646 Mod_Q2BSP_LoadFaces(&header->lumps[Q2LUMP_FACES]);
3647 Mod_Q2BSP_LoadLighting(&header->lumps[Q2LUMP_LIGHTING]);
3648 Mod_Q2BSP_LoadLeafs(&header->lumps[Q2LUMP_LEAFS]);
3649 Mod_Q2BSP_LoadLeafFaces(&header->lumps[Q2LUMP_LEAFFACES]);
3650 Mod_Q2BSP_LoadLeafBrushes(&header->lumps[Q2LUMP_LEAFBRUSHES]);
3651 Mod_Q2BSP_LoadEdges(&header->lumps[Q2LUMP_EDGES]);
3652 Mod_Q2BSP_LoadSurfEdges(&header->lumps[Q2LUMP_SURFEDGES]);
3653 Mod_Q2BSP_LoadBrushes(&header->lumps[Q2LUMP_BRUSHES]);
3654 Mod_Q2BSP_LoadBrushSides(&header->lumps[Q2LUMP_BRUSHSIDES]);
3655 Mod_Q2BSP_LoadAreas(&header->lumps[Q2LUMP_AREAS]);
3656 Mod_Q2BSP_LoadAreaPortals(&header->lumps[Q2LUMP_AREAPORTALS]);
3657 // LordHavoc: must go last because this makes the submodels
3658 Mod_Q2BSP_LoadModels(&header->lumps[Q2LUMP_MODELS]);
3661 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents);
3662 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents);
3664 static void Mod_Q3BSP_LoadEntities(lump_t *l)
3667 char key[128], value[4096];
3669 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
3670 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
3671 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
3674 loadmodel->brush.entities = Mem_Alloc(loadmodel->mempool, l->filelen);
3675 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
3676 data = loadmodel->brush.entities;
3677 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
3678 if (data && COM_ParseToken(&data, false) && com_token[0] == '{')
3682 if (!COM_ParseToken(&data, false))
3684 if (com_token[0] == '}')
3685 break; // end of worldspawn
3686 if (com_token[0] == '_')
3687 strcpy(key, com_token + 1);
3689 strcpy(key, com_token);
3690 while (key[strlen(key)-1] == ' ') // remove trailing spaces
3691 key[strlen(key)-1] = 0;
3692 if (!COM_ParseToken(&data, false))
3694 strcpy(value, com_token);
3695 if (!strcmp("gridsize", key))
3697 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
3698 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
3704 static void Mod_Q3BSP_LoadTextures(lump_t *l)
3713 int flags, flags2, numparameters, passnumber;
3714 char shadername[Q3PATHLENGTH];
3715 char sky[Q3PATHLENGTH];
3716 char firstpasstexturename[Q3PATHLENGTH];
3717 char parameter[4][Q3PATHLENGTH];
3719 in = (void *)(mod_base + l->fileofs);
3720 if (l->filelen % sizeof(*in))
3721 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
3722 count = l->filelen / sizeof(*in);
3723 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3725 loadmodel->data_textures = out;
3726 loadmodel->num_textures = count;
3728 for (i = 0;i < count;i++, in++, out++)
3730 strlcpy (out->name, in->name, sizeof (out->name));
3731 out->surfaceflags = LittleLong(in->surfaceflags);
3732 out->supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in->contents));
3733 out->surfaceparms = -1;
3736 // do a quick parse of shader files to get surfaceparms
3737 if ((search = FS_Search("scripts/*.shader", true, false)))
3739 for (i = 0;i < search->numfilenames;i++)
3741 if ((f = FS_LoadFile(search->filenames[i], tempmempool, false)))
3744 while (COM_ParseToken(&text, false))
3746 strlcpy (shadername, com_token, sizeof (shadername));
3751 firstpasstexturename[0] = 0;
3752 if (COM_ParseToken(&text, false) && !strcasecmp(com_token, "{"))
3754 while (COM_ParseToken(&text, false))
3756 if (!strcasecmp(com_token, "}"))
3758 else if (!strcasecmp(com_token, "{"))
3760 while (COM_ParseToken(&text, false))
3762 if (!strcasecmp(com_token, "}"))
3764 if (!strcasecmp(com_token, "\n"))
3767 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
3771 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
3772 numparameters = j + 1;
3774 if (!COM_ParseToken(&text, true))
3777 if (developer.integer >= 2)
3779 Con_Printf("%s %i: ", shadername, passnumber);
3780 for (j = 0;j < numparameters;j++)
3781 Con_Printf(" %s", parameter[j]);
3784 if (passnumber == 0 && numparameters >= 1)
3786 if (!strcasecmp(parameter[0], "blendfunc") && (flags & Q3SURFACEPARM_TRANS))
3788 if (numparameters == 2 && !strcasecmp(parameter[1], "add"))
3789 flags2 |= Q3TEXTUREFLAG_ADDITIVE;
3790 else if (numparameters == 3 && !strcasecmp(parameter[1], "gl_one") && !strcasecmp(parameter[2], "gl_one"))
3791 flags2 |= Q3TEXTUREFLAG_ADDITIVE;
3792 else if (numparameters == 3 && !strcasecmp(parameter[1], "gl_src_alpha") && !strcasecmp(parameter[2], "gl_one"))
3793 flags2 |= Q3TEXTUREFLAG_ADDITIVE;
3795 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
3796 strlcpy(firstpasstexturename, parameter[1], sizeof(firstpasstexturename));
3797 else if (numparameters >= 3 && !strcasecmp(parameter[0], "animmap"))
3798 strlcpy(firstpasstexturename, parameter[2], sizeof(firstpasstexturename));
3799 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
3800 flags2 |= Q3TEXTUREFLAG_ALPHATEST;
3802 // break out a level if it was }
3803 if (!strcasecmp(com_token, "}"))
3810 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
3814 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
3815 numparameters = j + 1;
3817 if (!COM_ParseToken(&text, true))
3820 if (i == 0 && !strcasecmp(com_token, "}"))
3822 if (developer.integer >= 2)
3824 Con_Printf("%s: ", shadername);
3825 for (j = 0;j < numparameters;j++)
3826 Con_Printf(" %s", parameter[j]);
3829 if (numparameters < 1)
3831 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
3833 if (!strcasecmp(parameter[1], "alphashadow"))
3834 flags |= Q3SURFACEPARM_ALPHASHADOW;
3835 else if (!strcasecmp(parameter[1], "areaportal"))
3836 flags |= Q3SURFACEPARM_AREAPORTAL;
3837 else if (!strcasecmp(parameter[1], "clusterportal"))
3838 flags |= Q3SURFACEPARM_CLUSTERPORTAL;
3839 else if (!strcasecmp(parameter[1], "detail"))
3840 flags |= Q3SURFACEPARM_DETAIL;
3841 else if (!strcasecmp(parameter[1], "donotenter"))
3842 flags |= Q3SURFACEPARM_DONOTENTER;
3843 else if (!strcasecmp(parameter[1], "fog"))
3844 flags |= Q3SURFACEPARM_FOG;
3845 else if (!strcasecmp(parameter[1], "lava"))
3846 flags |= Q3SURFACEPARM_LAVA;
3847 else if (!strcasecmp(parameter[1], "lightfilter"))
3848 flags |= Q3SURFACEPARM_LIGHTFILTER;
3849 else if (!strcasecmp(parameter[1], "metalsteps"))
3850 flags |= Q3SURFACEPARM_METALSTEPS;
3851 else if (!strcasecmp(parameter[1], "nodamage"))
3852 flags |= Q3SURFACEPARM_NODAMAGE;
3853 else if (!strcasecmp(parameter[1], "nodlight"))
3854 flags |= Q3SURFACEPARM_NODLIGHT;
3855 else if (!strcasecmp(parameter[1], "nodraw"))
3856 flags |= Q3SURFACEPARM_NODRAW;
3857 else if (!strcasecmp(parameter[1], "nodrop"))
3858 flags |= Q3SURFACEPARM_NODROP;
3859 else if (!strcasecmp(parameter[1], "noimpact"))
3860 flags |= Q3SURFACEPARM_NOIMPACT;
3861 else if (!strcasecmp(parameter[1], "nolightmap"))
3862 flags |= Q3SURFACEPARM_NOLIGHTMAP;
3863 else if (!strcasecmp(parameter[1], "nomarks"))
3864 flags |= Q3SURFACEPARM_NOMARKS;
3865 else if (!strcasecmp(parameter[1], "nomipmaps"))
3866 flags |= Q3SURFACEPARM_NOMIPMAPS;
3867 else if (!strcasecmp(parameter[1], "nonsolid"))
3868 flags |= Q3SURFACEPARM_NONSOLID;
3869 else if (!strcasecmp(parameter[1], "origin"))
3870 flags |= Q3SURFACEPARM_ORIGIN;
3871 else if (!strcasecmp(parameter[1], "playerclip"))
3872 flags |= Q3SURFACEPARM_PLAYERCLIP;
3873 else if (!strcasecmp(parameter[1], "sky"))
3874 flags |= Q3SURFACEPARM_SKY;
3875 else if (!strcasecmp(parameter[1], "slick"))
3876 flags |= Q3SURFACEPARM_SLICK;
3877 else if (!strcasecmp(parameter[1], "slime"))
3878 flags |= Q3SURFACEPARM_SLIME;
3879 else if (!strcasecmp(parameter[1], "structural"))
3880 flags |= Q3SURFACEPARM_STRUCTURAL;
3881 else if (!strcasecmp(parameter[1], "trans"))
3882 flags |= Q3SURFACEPARM_TRANS;
3883 else if (!strcasecmp(parameter[1], "water"))
3884 flags |= Q3SURFACEPARM_WATER;
3885 else if (!strcasecmp(parameter[1], "pointlight"))
3886 flags |= Q3SURFACEPARM_POINTLIGHT;
3888 Con_Printf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[i], parameter[1]);
3890 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
3891 strlcpy(sky, parameter[1], sizeof(sky));
3892 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
3894 if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
3895 strlcpy(sky, parameter[1], sizeof(sky));
3897 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
3899 if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
3900 flags2 |= Q3TEXTUREFLAG_TWOSIDED;
3902 else if (!strcasecmp(parameter[0], "nomipmaps"))
3903 flags2 |= Q3TEXTUREFLAG_NOMIPMAPS;
3904 else if (!strcasecmp(parameter[0], "nopicmip"))
3905 flags2 |= Q3TEXTUREFLAG_NOPICMIP;
3906 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
3908 if (!strcasecmp(parameter[1], "autosprite") && numparameters == 2)
3909 flags2 |= Q3TEXTUREFLAG_AUTOSPRITE;
3910 if (!strcasecmp(parameter[1], "autosprite2") && numparameters == 2)
3911 flags2 |= Q3TEXTUREFLAG_AUTOSPRITE2;
3914 // add shader to list (shadername and flags)
3915 // actually here we just poke into the texture settings
3916 for (j = 0, out = loadmodel->data_textures;j < loadmodel->num_textures;j++, out++)
3918 if (!strcasecmp(out->name, shadername))
3920 out->surfaceparms = flags;
3921 out->textureflags = flags2;
3922 out->basematerialflags = 0;
3923 if (out->surfaceparms & Q3SURFACEPARM_NODRAW)
3924 out->basematerialflags |= MATERIALFLAG_NODRAW;
3925 else if (out->surfaceparms & Q3SURFACEPARM_SKY)
3926 out->basematerialflags |= MATERIALFLAG_SKY;
3927 else if (out->surfaceparms & Q3SURFACEPARM_LAVA)
3928 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_FULLBRIGHT;
3929 else if (out->surfaceparms & Q3SURFACEPARM_SLIME)
3930 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_WATERALPHA;
3931 else if (out->surfaceparms & Q3SURFACEPARM_WATER)
3932 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_WATERALPHA;
3934 out->basematerialflags |= MATERIALFLAG_WALL;
3935 if (out->textureflags & Q3TEXTUREFLAG_ALPHATEST)
3937 // FIXME: support alpha test?
3938 out->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT;
3940 else if (out->surfaceparms & Q3SURFACEPARM_TRANS)
3942 if (out->textureflags & Q3TEXTUREFLAG_ADDITIVE)
3943 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_TRANSPARENT;
3945 out->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT;
3947 strlcpy(out->firstpasstexturename, firstpasstexturename, sizeof(out->firstpasstexturename));
3948 if ((flags & Q3SURFACEPARM_SKY) && sky[0])
3950 // quake3 seems to append a _ to the skybox name, so this must do so as well
3951 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", sky);
3958 Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[i], com_token);
3969 for (j = 0, out = loadmodel->data_textures;j < loadmodel->num_textures;j++, out++)
3971 if (out->surfaceparms == -1)
3974 Con_DPrintf("%s: No shader found for texture \"%s\"\n", loadmodel->name, out->name);
3975 out->surfaceparms = 0;
3976 if (out->surfaceflags & Q3SURFACEFLAG_NODRAW)
3977 out->basematerialflags |= MATERIALFLAG_NODRAW;
3978 else if (out->surfaceflags & Q3SURFACEFLAG_SKY)
3979 out->basematerialflags |= MATERIALFLAG_SKY;
3981 out->basematerialflags |= MATERIALFLAG_WALL;
3982 // these are defaults
3983 //if (!strncmp(out->name, "textures/skies/", 15))
3984 // out->surfaceparms |= Q3SURFACEPARM_SKY;
3985 //if (!strcmp(out->name, "caulk") || !strcmp(out->name, "common/caulk") || !strcmp(out->name, "textures/common/caulk")
3986 // || !strcmp(out->name, "nodraw") || !strcmp(out->name, "common/nodraw") || !strcmp(out->name, "textures/common/nodraw"))
3987 // out->surfaceparms |= Q3SURFACEPARM_NODRAW;
3988 //if (R_TextureHasAlpha(out->skin.base))
3989 // out->surfaceparms |= Q3SURFACEPARM_TRANS;
3991 if (!Mod_LoadSkinFrame(&out->skin, out->name, (((out->textureflags & Q3TEXTUREFLAG_NOMIPMAPS) || (out->surfaceparms & Q3SURFACEPARM_NOMIPMAPS)) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | (out->textureflags & Q3TEXTUREFLAG_NOPICMIP ? 0 : TEXF_PICMIP), false, false, true))
3992 if (!Mod_LoadSkinFrame(&out->skin, out->firstpasstexturename, (((out->textureflags & Q3TEXTUREFLAG_NOMIPMAPS) || (out->surfaceparms & Q3SURFACEPARM_NOMIPMAPS)) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | (out->textureflags & Q3TEXTUREFLAG_NOPICMIP ? 0 : TEXF_PICMIP), false, false, true))
3993 if (cls.state != ca_dedicated)
3994 Con_Printf("%s: texture loading for shader \"%s\" failed (first layer \"%s\" not found either)\n", loadmodel->name, out->name, out->firstpasstexturename);
3996 out->currentframe = out;
3999 Con_DPrintf("%s: %i textures missing shaders\n", loadmodel->name, c);
4002 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
4008 in = (void *)(mod_base + l->fileofs);
4009 if (l->filelen % sizeof(*in))
4010 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
4011 count = l->filelen / sizeof(*in);
4012 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4014 loadmodel->brush.data_planes = out;
4015 loadmodel->brush.num_planes = count;
4017 for (i = 0;i < count;i++, in++, out++)
4019 out->normal[0] = LittleFloat(in->normal[0]);
4020 out->normal[1] = LittleFloat(in->normal[1]);
4021 out->normal[2] = LittleFloat(in->normal[2]);
4022 out->dist = LittleFloat(in->dist);
4027 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
4030 q3mbrushside_t *out;
4033 in = (void *)(mod_base + l->fileofs);
4034 if (l->filelen % sizeof(*in))
4035 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4036 count = l->filelen / sizeof(*in);
4037 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4039 loadmodel->brush.data_brushsides = out;
4040 loadmodel->brush.num_brushsides = count;
4042 for (i = 0;i < count;i++, in++, out++)
4044 n = LittleLong(in->planeindex);
4045 if (n < 0 || n >= loadmodel->brush.num_planes)
4046 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)\n", n, loadmodel->brush.num_planes);
4047 out->plane = loadmodel->brush.data_planes + n;
4048 n = LittleLong(in->textureindex);
4049 if (n < 0 || n >= loadmodel->num_textures)
4050 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)\n", n, loadmodel->num_textures);
4051 out->texture = loadmodel->data_textures + n;
4055 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
4059 int i, j, n, c, count, maxplanes;
4062 in = (void *)(mod_base + l->fileofs);
4063 if (l->filelen % sizeof(*in))
4064 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4065 count = l->filelen / sizeof(*in);
4066 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4068 loadmodel->brush.data_brushes = out;
4069 loadmodel->brush.num_brushes = count;
4074 for (i = 0;i < count;i++, in++, out++)
4076 n = LittleLong(in->firstbrushside);
4077 c = LittleLong(in->numbrushsides);
4078 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
4079 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)\n", n, n + c, loadmodel->brush.num_brushsides);
4080 out->firstbrushside = loadmodel->brush.data_brushsides + n;
4081 out->numbrushsides = c;
4082 n = LittleLong(in->textureindex);
4083 if (n < 0 || n >= loadmodel->num_textures)
4084 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)\n", n, loadmodel->num_textures);
4085 out->texture = loadmodel->data_textures + n;
4087 // make a list of mplane_t structs to construct a colbrush from
4088 if (maxplanes < out->numbrushsides)
4090 maxplanes = out->numbrushsides;
4093 planes = Mem_Alloc(tempmempool, sizeof(mplane_t) * maxplanes);
4095 for (j = 0;j < out->numbrushsides;j++)
4097 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4098 planes[j].dist = out->firstbrushside[j].plane->dist;
4100 // make the colbrush from the planes
4101 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents);
4107 static void Mod_Q3BSP_LoadEffects(lump_t *l)
4113 in = (void *)(mod_base + l->fileofs);
4114 if (l->filelen % sizeof(*in))
4115 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
4116 count = l->filelen / sizeof(*in);
4117 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4119 loadmodel->brushq3.data_effects = out;
4120 loadmodel->brushq3.num_effects = count;
4122 for (i = 0;i < count;i++, in++, out++)
4124 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
4125 n = LittleLong(in->brushindex);
4126 if (n < 0 || n >= loadmodel->brush.num_brushes)
4127 Host_Error("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes)\n", n, loadmodel->brush.num_brushes);
4128 out->brushindex = n;
4129 out->unknown = LittleLong(in->unknown);
4133 static void Mod_Q3BSP_LoadVertices(lump_t *l)
4138 in = (void *)(mod_base + l->fileofs);
4139 if (l->filelen % sizeof(*in))
4140 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
4141 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
4142 loadmodel->brushq3.data_vertex3f = Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 2 + 2 + 4)));
4143 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_vertex3f + count * 3;
4144 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
4145 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
4147 for (i = 0;i < count;i++, in++)
4149 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
4150 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
4151 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
4152 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
4153 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
4154 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
4155 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
4156 // svector/tvector are calculated later in face loading
4157 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
4158 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
4159 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
4160 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
4164 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
4170 in = (void *)(mod_base + l->fileofs);
4171 if (l->filelen % sizeof(int[3]))
4172 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
4173 count = l->filelen / sizeof(*in);
4174 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4176 loadmodel->brushq3.num_triangles = count / 3;
4177 loadmodel->brushq3.data_element3i = out;
4179 for (i = 0;i < count;i++, in++, out++)
4181 *out = LittleLong(*in);
4182 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
4184 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
4190 static void Mod_Q3BSP_LoadLightmaps(lump_t *l)
4198 in = (void *)(mod_base + l->fileofs);
4199 if (l->filelen % sizeof(*in))
4200 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
4201 count = l->filelen / sizeof(*in);
4202 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4204 loadmodel->brushq3.data_lightmaps = out;
4205 loadmodel->brushq3.num_lightmaps = count;
4207 for (i = 0;i < count;i++, in++, out++)
4208 *out = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", i), 128, 128, in->rgb, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
4211 static void Mod_Q3BSP_LoadFaces(lump_t *l)
4213 q3dface_t *in, *oldin;
4214 msurface_t *out, *oldout;
4215 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;
4216 //int *originalelement3i;
4217 //int *originalneighbor3i;
4218 float *originalvertex3f;
4219 //float *originalsvector3f;
4220 //float *originaltvector3f;
4221 //float *originalnormal3f;
4222 float *originalcolor4f;
4223 float *originaltexcoordtexture2f;
4224 float *originaltexcoordlightmap2f;
4226 surfmesh_t *mesh, *tempmeshlist[1024];
4228 in = (void *)(mod_base + l->fileofs);
4229 if (l->filelen % sizeof(*in))
4230 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
4231 count = l->filelen / sizeof(*in);
4232 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4234 loadmodel->data_surfaces = out;
4235 loadmodel->num_surfaces = count;
4238 for (meshnum = 0;i < count;meshnum++)
4245 for (;i < count;i++, in++, out++)
4247 // check face type first
4248 type = LittleLong(in->type);
4249 if (type != Q3FACETYPE_POLYGON
4250 && type != Q3FACETYPE_PATCH
4251 && type != Q3FACETYPE_MESH
4252 && type != Q3FACETYPE_FLARE)
4254 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
4258 n = LittleLong(in->textureindex);
4259 if (n < 0 || n >= loadmodel->num_textures)
4261 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
4264 out->texture = loadmodel->data_textures + n;
4265 n = LittleLong(in->effectindex);
4266 if (n < -1 || n >= loadmodel->brushq3.num_effects)
4268 if (developer.integer >= 2)
4269 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
4275 out->effect = loadmodel->brushq3.data_effects + n;
4276 n = LittleLong(in->lightmapindex);
4277 if (n >= loadmodel->brushq3.num_lightmaps)
4279 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_lightmaps);
4285 out->lightmaptexture = NULL;
4287 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n];
4289 firstvertex = LittleLong(in->firstvertex);
4290 numvertices = LittleLong(in->numvertices);
4291 firstelement = LittleLong(in->firstelement);
4292 numtriangles = LittleLong(in->numelements) / 3;
4293 if (numtriangles * 3 != LittleLong(in->numelements))
4295 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));
4298 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
4300 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);
4303 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
4305 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);
4310 case Q3FACETYPE_POLYGON:
4311 case Q3FACETYPE_MESH:
4312 // no processing necessary
4314 case Q3FACETYPE_PATCH:
4315 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4316 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4317 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))
4319 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
4322 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4323 // convert patch to Q3FACETYPE_MESH
4324 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4325 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4326 // bound to user settings
4327 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4328 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4329 // bound to sanity settings
4330 xtess = bound(1, xtess, 1024);
4331 ytess = bound(1, ytess, 1024);
4332 // bound to user limit on vertices
4333 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4340 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4341 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4342 numvertices = finalwidth * finalheight;
4343 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4345 case Q3FACETYPE_FLARE:
4346 if (developer.integer >= 2)
4347 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
4351 out->num_vertices = numvertices;
4352 out->num_triangles = numtriangles;
4353 if (meshvertices + out->num_vertices > 65536)
4355 meshvertices += out->num_vertices;
4356 meshtriangles += out->num_triangles;
4362 mesh = tempmeshlist[meshnum] = Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, false, true, false);
4365 for (;i < count && meshvertices + out->num_vertices <= mesh->num_vertices;i++, in++, out++)
4367 if (out->num_vertices < 3 || out->num_triangles < 1)
4370 type = LittleLong(in->type);
4371 firstvertex = LittleLong(in->firstvertex);
4372 firstelement = LittleLong(in->firstelement);
4373 out->groupmesh = mesh;
4374 out->num_firstvertex = meshvertices;
4375 out->num_firsttriangle = meshtriangles;
4378 case Q3FACETYPE_POLYGON:
4379 case Q3FACETYPE_MESH:
4380 // no processing necessary
4381 for (j = 0;j < out->num_vertices;j++)
4383 (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
4384 (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
4385 (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
4386 (out->groupmesh->data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
4387 (out->groupmesh->data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
4388 (out->groupmesh->data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
4389 (out->groupmesh->data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
4390 (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
4391 (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
4392 (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
4393 (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
4395 for (j = 0;j < out->num_triangles*3;j++)
4396 (out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
4398 case Q3FACETYPE_PATCH:
4399 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4400 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4401 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4402 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
4403 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
4404 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
4405 // convert patch to Q3FACETYPE_MESH
4406 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4407 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4408 // bound to user settings
4409 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4410 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4411 // bound to sanity settings
4412 xtess = bound(1, xtess, 1024);
4413 ytess = bound(1, ytess, 1024);
4414 // bound to user limit on vertices
4415 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4422 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4423 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4424 finalvertices = finalwidth * finalheight;
4425 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4426 type = Q3FACETYPE_MESH;
4427 // generate geometry
4428 // (note: normals are skipped because they get recalculated)
4429 Q3PatchTesselateFloat(3, sizeof(float[3]), (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4430 Q3PatchTesselateFloat(2, sizeof(float[2]), (out->groupmesh->data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
4431 Q3PatchTesselateFloat(2, sizeof(float[2]), (out->groupmesh->data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
4432 Q3PatchTesselateFloat(4, sizeof(float[4]), (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
4433 Q3PatchTriangleElements((out->groupmesh->data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
4434 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);
4435 if (developer.integer >= 2)
4437 if (out->num_triangles < finaltriangles)
4438 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);
4440 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);
4442 // q3map does not put in collision brushes for curves... ugh
4443 // build the lower quality collision geometry
4444 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4445 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4446 // bound to user settings
4447 xtess = bound(r_subdivisions_collision_mintess.integer, xtess, r_subdivisions_collision_maxtess.integer);
4448 ytess = bound(r_subdivisions_collision_mintess.integer, ytess, r_subdivisions_collision_maxtess.integer);
4449 // bound to sanity settings
4450 xtess = bound(1, xtess, 1024);
4451 ytess = bound(1, ytess, 1024);
4452 // bound to user limit on vertices
4453 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_collision_maxvertices.integer, 262144))
4460 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4461 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4462 finalvertices = finalwidth * finalheight;
4463 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4465 out->data_collisionvertex3f = Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
4466 out->data_collisionelement3i = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
4467 out->num_collisionvertices = finalvertices;
4468 out->num_collisiontriangles = finaltriangles;
4469 Q3PatchTesselateFloat(3, sizeof(float[3]), out->data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4470 Q3PatchTriangleElements(out->data_collisionelement3i, finalwidth, finalheight, 0);
4472 //Mod_SnapVertices(3, out->num_vertices, (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex), 0.25);
4473 Mod_SnapVertices(3, out->num_collisionvertices, out->data_collisionvertex3f, 1);
4475 oldnumtriangles = out->num_triangles;
4476 oldnumtriangles2 = out->num_collisiontriangles;
4477 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(out->num_collisiontriangles, out->data_collisionelement3i, out->data_collisionelement3i, out->data_collisionvertex3f);
4478 if (developer.integer)
4479 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);
4484 meshvertices += out->num_vertices;
4485 meshtriangles += out->num_triangles;
4486 for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
4487 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)
4489 if (invalidelements)
4491 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);
4492 for (j = 0;j < out->num_triangles * 3;j++)
4494 Con_Printf(" %i", (out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
4495 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)
4496 (out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
4500 // for per pixel lighting
4501 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);
4502 // calculate a bounding box
4503 VectorClear(out->mins);
4504 VectorClear(out->maxs);
4505 if (out->num_vertices)
4507 VectorCopy((out->groupmesh->data_vertex3f + 3 * out->num_firstvertex), out->mins);
4508 VectorCopy((out->groupmesh->data_vertex3f + 3 * out->num_firstvertex), out->maxs);
4509 for (j = 1, v = (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
4511 out->mins[0] = min(out->mins[0], v[0]);
4512 out->maxs[0] = max(out->maxs[0], v[0]);
4513 out->mins[1] = min(out->mins[1], v[1]);
4514 out->maxs[1] = max(out->maxs[1], v[1]);
4515 out->mins[2] = min(out->mins[2], v[2]);
4516 out->maxs[2] = max(out->maxs[2], v[2]);
4518 out->mins[0] -= 1.0f;
4519 out->mins[1] -= 1.0f;
4520 out->mins[2] -= 1.0f;
4521 out->maxs[0] += 1.0f;
4522 out->maxs[1] += 1.0f;
4523 out->maxs[2] += 1.0f;
4525 // set lightmap styles for consistency with q1bsp
4526 //out->lightmapinfo->styles[0] = 0;
4527 //out->lightmapinfo->styles[1] = 255;
4528 //out->lightmapinfo->styles[2] = 255;
4529 //out->lightmapinfo->styles[3] = 255;
4533 // now store the completed list of meshes
4534 loadmodel->nummeshes = meshnum;
4535 if (loadmodel->nummeshes)
4537 loadmodel->meshlist = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t *) * loadmodel->nummeshes);
4538 memcpy(loadmodel->meshlist, tempmeshlist, sizeof(surfmesh_t *) * loadmodel->nummeshes);
4541 // free the no longer needed vertex data
4542 loadmodel->brushq3.num_vertices = 0;
4543 Mem_Free(loadmodel->brushq3.data_vertex3f);
4544 loadmodel->brushq3.data_vertex3f = NULL;
4545 loadmodel->brushq3.data_texcoordtexture2f = NULL;
4546 loadmodel->brushq3.data_texcoordlightmap2f = NULL;
4547 loadmodel->brushq3.data_color4f = NULL;
4548 // free the no longer needed triangle data
4549 loadmodel->brushq3.num_triangles = 0;
4550 Mem_Free(loadmodel->brushq3.data_element3i);
4551 loadmodel->brushq3.data_element3i = NULL;
4554 static void Mod_Q3BSP_LoadModels(lump_t *l)
4558 int i, j, n, c, count;
4560 in = (void *)(mod_base + l->fileofs);
4561 if (l->filelen % sizeof(*in))
4562 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
4563 count = l->filelen / sizeof(*in);
4564 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4566 loadmodel->brushq3.data_models = out;
4567 loadmodel->brushq3.num_models = count;
4569 for (i = 0;i < count;i++, in++, out++)
4571 for (j = 0;j < 3;j++)
4573 out->mins[j] = LittleFloat(in->mins[j]);
4574 out->maxs[j] = LittleFloat(in->maxs[j]);
4576 n = LittleLong(in->firstface);
4577 c = LittleLong(in->numfaces);
4578 if (n < 0 || n + c > loadmodel->num_surfaces)
4579 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)\n", n, n + c, loadmodel->num_surfaces);
4582 n = LittleLong(in->firstbrush);
4583 c = LittleLong(in->numbrushes);
4584 if (n < 0 || n + c > loadmodel->brush.num_brushes)
4585 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)\n", n, n + c, loadmodel->brush.num_brushes);
4586 out->firstbrush = n;
4587 out->numbrushes = c;
4591 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
4597 in = (void *)(mod_base + l->fileofs);
4598 if (l->filelen % sizeof(*in))
4599 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
4600 count = l->filelen / sizeof(*in);
4601 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4603 loadmodel->brush.data_leafbrushes = out;
4604 loadmodel->brush.num_leafbrushes = count;
4606 for (i = 0;i < count;i++, in++, out++)
4608 n = LittleLong(*in);
4609 if (n < 0 || n >= loadmodel->brush.num_brushes)
4610 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)\n", n, loadmodel->brush.num_brushes);
4615 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
4621 in = (void *)(mod_base + l->fileofs);
4622 if (l->filelen % sizeof(*in))
4623 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
4624 count = l->filelen / sizeof(*in);
4625 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4627 loadmodel->brush.data_leafsurfaces = out;
4628 loadmodel->brush.num_leafsurfaces = count;
4630 for (i = 0;i < count;i++, in++, out++)
4632 n = LittleLong(*in);
4633 if (n < 0 || n >= loadmodel->num_surfaces)
4634 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)\n", n, loadmodel->num_surfaces);
4639 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
4643 int i, j, n, c, count;
4645 in = (void *)(mod_base + l->fileofs);
4646 if (l->filelen % sizeof(*in))
4647 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
4648 count = l->filelen / sizeof(*in);
4649 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4651 loadmodel->brush.data_leafs = out;
4652 loadmodel->brush.num_leafs = count;
4654 for (i = 0;i < count;i++, in++, out++)
4658 out->clusterindex = LittleLong(in->clusterindex);
4659 out->areaindex = LittleLong(in->areaindex);
4660 for (j = 0;j < 3;j++)
4662 // yes the mins/maxs are ints
4663 out->mins[j] = LittleLong(in->mins[j]) - 1;
4664 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
4666 n = LittleLong(in->firstleafface);
4667 c = LittleLong(in->numleaffaces);
4668 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
4669 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)\n", n, n + c, loadmodel->brush.num_leafsurfaces);
4670 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
4671 out->numleafsurfaces = c;
4672 n = LittleLong(in->firstleafbrush);
4673 c = LittleLong(in->numleafbrushes);
4674 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
4675 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)\n", n, n + c, loadmodel->brush.num_leafbrushes);
4676 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
4677 out->numleafbrushes = c;
4681 static void Mod_Q3BSP_LoadNodes(lump_t *l)
4687 in = (void *)(mod_base + l->fileofs);
4688 if (l->filelen % sizeof(*in))
4689 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
4690 count = l->filelen / sizeof(*in);
4691 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4693 loadmodel->brush.data_nodes = out;
4694 loadmodel->brush.num_nodes = count;
4696 for (i = 0;i < count;i++, in++, out++)
4699 n = LittleLong(in->planeindex);
4700 if (n < 0 || n >= loadmodel->brush.num_planes)
4701 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)\n", n, loadmodel->brush.num_planes);
4702 out->plane = loadmodel->brush.data_planes + n;
4703 for (j = 0;j < 2;j++)
4705 n = LittleLong(in->childrenindex[j]);
4708 if (n >= loadmodel->brush.num_nodes)
4709 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)\n", n, loadmodel->brush.num_nodes);
4710 out->children[j] = loadmodel->brush.data_nodes + n;
4715 if (n >= loadmodel->brush.num_leafs)
4716 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)\n", n, loadmodel->brush.num_leafs);
4717 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
4720 for (j = 0;j < 3;j++)
4722 // yes the mins/maxs are ints
4723 out->mins[j] = LittleLong(in->mins[j]) - 1;
4724 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
4728 // set the parent pointers
4729 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
4732 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
4735 q3dlightgrid_t *out;
4738 in = (void *)(mod_base + l->fileofs);
4739 if (l->filelen % sizeof(*in))
4740 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
4741 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
4742 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
4743 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
4744 loadmodel->brushq3.num_lightgrid_imins[0] = ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
4745 loadmodel->brushq3.num_lightgrid_imins[1] = ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
4746 loadmodel->brushq3.num_lightgrid_imins[2] = ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
4747 loadmodel->brushq3.num_lightgrid_imaxs[0] = floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
4748 loadmodel->brushq3.num_lightgrid_imaxs[1] = floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
4749 loadmodel->brushq3.num_lightgrid_imaxs[2] = floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
4750 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
4751 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
4752 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
4753 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
4754 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]);
4755 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]);
4757 // if lump is empty there is nothing to load, we can deal with that in the LightPoint code
4760 if (l->filelen < count * (int)sizeof(*in))
4761 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]);
4762 if (l->filelen != count * (int)sizeof(*in))
4763 Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", count * sizeof(*in), l->filelen);
4764 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4765 loadmodel->brushq3.data_lightgrid = out;
4766 loadmodel->brushq3.num_lightgrid = count;
4767 // no swapping or validation necessary
4768 memcpy(out, in, count * (int)sizeof(*out));
4772 static void Mod_Q3BSP_LoadPVS(lump_t *l)
4777 if (l->filelen == 0)
4780 // unvised maps often have cluster indices even without pvs, so check
4781 // leafs to find real number of clusters
4782 loadmodel->brush.num_pvsclusters = 1;
4783 for (i = 0;i < loadmodel->brush.num_leafs;i++)
4784 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
4787 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
4788 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
4789 loadmodel->brush.data_pvsclusters = Mem_Alloc(loadmodel->mempool, totalchains);
4790 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
4794 in = (void *)(mod_base + l->fileofs);
4796 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
4798 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
4799 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
4800 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
4801 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8\n", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
4802 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
4803 if (l->filelen < totalchains + (int)sizeof(*in))
4804 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);
4806 loadmodel->brush.data_pvsclusters = Mem_Alloc(loadmodel->mempool, totalchains);
4807 memcpy(loadmodel->brush.data_pvsclusters, (qbyte *)(in + 1), totalchains);
4810 static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
4812 int i, j, k, index[3];
4813 float transformed[3], blend1, blend2, blend, yaw, pitch, sinpitch;
4814 q3dlightgrid_t *a, *s;
4815 if (!model->brushq3.num_lightgrid)
4817 ambientcolor[0] = 1;
4818 ambientcolor[1] = 1;
4819 ambientcolor[2] = 1;
4822 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
4823 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
4824 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
4825 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
4826 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
4827 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
4828 index[0] = (int)floor(transformed[0]);
4829 index[1] = (int)floor(transformed[1]);
4830 index[2] = (int)floor(transformed[2]);
4831 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
4832 // now lerp the values
4833 VectorClear(diffusenormal);
4834 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
4835 for (k = 0;k < 2;k++)
4837 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
4838 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
4840 for (j = 0;j < 2;j++)
4842 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
4843 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
4845 for (i = 0;i < 2;i++)
4847 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0])));
4848 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
4850 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
4851 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
4852 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
4853 pitch = s->diffusepitch * M_PI / 128;
4854 yaw = s->diffuseyaw * M_PI / 128;
4855 sinpitch = sin(pitch);
4856 diffusenormal[0] += blend * (cos(yaw) * sinpitch);
4857 diffusenormal[1] += blend * (sin(yaw) * sinpitch);
4858 diffusenormal[2] += blend * (cos(pitch));
4859 //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)));
4863 VectorNormalize(diffusenormal);
4864 //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]);
4867 static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t point, int markframe)
4872 // find which leaf the point is in
4874 node = node->children[DotProduct(point, node->plane->normal) < node->plane->dist];
4875 // point trace the brushes
4876 leaf = (mleaf_t *)node;
4877 for (i = 0;i < leaf->numleafbrushes;i++)
4879 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
4880 if (brush && brush->markframe != markframe && BoxesOverlap(point, point, brush->mins, brush->maxs))
4882 brush->markframe = markframe;
4883 Collision_TracePointBrushFloat(trace, point, brush);
4886 // can't do point traces on curves (they have no thickness)
4889 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)
4891 int i, startside, endside;
4892 float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
4894 msurface_t *surface;
4896 if (startfrac > trace->realfraction)
4898 // note: all line fragments past first impact fraction are ignored
4899 if (VectorCompare(start, end))
4901 // find which leaf the point is in
4903 node = node->children[DotProduct(start, node->plane->normal) < node->plane->dist];
4907 // find which nodes the line is in and recurse for them
4910 // recurse down node sides
4911 dist1 = PlaneDiff(start, node->plane);
4912 dist2 = PlaneDiff(end, node->plane);
4913 startside = dist1 < 0;
4914 endside = dist2 < 0;
4915 if (startside == endside)
4917 // most of the time the line fragment is on one side of the plane
4918 node = node->children[startside];
4922 // line crosses node plane, split the line
4923 midfrac = dist1 / (dist1 - dist2);
4924 VectorLerp(start, midfrac, end, mid);
4925 // take the near side first
4926 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
4927 if (midfrac <= trace->realfraction)
4928 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
4934 nodesegmentmins[0] = min(start[0], end[0]);
4935 nodesegmentmins[1] = min(start[1], end[1]);
4936 nodesegmentmins[2] = min(start[2], end[2]);
4937 nodesegmentmaxs[0] = max(start[0], end[0]);
4938 nodesegmentmaxs[1] = max(start[1], end[1]);
4939 nodesegmentmaxs[2] = max(start[2], end[2]);
4940 // line trace the brushes
4941 leaf = (mleaf_t *)node;
4942 for (i = 0;i < leaf->numleafbrushes;i++)
4944 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
4945 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
4947 brush->markframe = markframe;
4948 Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
4949 if (startfrac > trace->realfraction)
4953 // can't do point traces on curves (they have no thickness)
4954 if (mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
4956 // line trace the curves
4957 for (i = 0;i < leaf->numleafsurfaces;i++)
4959 surface = model->data_surfaces + leaf->firstleafsurface[i];
4960 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
4962 surface->collisionmarkframe = markframe;
4963 Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
4964 if (startfrac > trace->realfraction)
4971 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)
4975 float nodesegmentmins[3], nodesegmentmaxs[3];
4978 msurface_t *surface;
4980 // find which nodes the line is in and recurse for them
4983 // recurse down node sides
4984 int startside, endside;
4985 float dist1near, dist1far, dist2near, dist2far;
4986 BoxPlaneCornerDistances(thisbrush_start->mins, thisbrush_start->maxs, node->plane, &dist1near, &dist1far);
4987 BoxPlaneCornerDistances(thisbrush_end->mins, thisbrush_end->maxs, node->plane, &dist2near, &dist2far);
4988 startside = dist1near < 0;
4989 startside = dist1near < 0 ? (dist1far < 0 ? 1 : 2) : (dist1far < 0 ? 2 : 0);
4990 endside = dist2near < 0 ? (dist2far < 0 ? 1 : 2) : (dist2far < 0 ? 2 : 0);
4991 if (startside == 2 || endside == 2)
4993 // brushes cross plane
4994 // do not clip anything, just take both sides
4995 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
4996 node = node->children[1];
5003 node = node->children[0];
5008 //midf0 = dist1near / (dist1near - dist2near);
5009 //midf1 = dist1far / (dist1far - dist2far);
5010 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5011 node = node->children[1];
5019 //midf0 = dist1near / (dist1near - dist2near);
5020 //midf1 = dist1far / (dist1far - dist2far);
5021 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5022 node = node->children[1];
5027 node = node->children[1];
5032 if (dist1near < 0 && dist2near < 0 && dist1far < 0 && dist2far < 0){node = node->children[1];continue;}
5033 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;}
5034 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;}
5035 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;}
5036 if (dist1near < 0 && dist2near >= 0 && dist1far < 0 && dist2far < 0){node = node->children[1];continue;}
5037 if (dist1near < 0 && dist2near >= 0 && dist1far < 0 && dist2far >= 0){}
5038 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;}
5039 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;}
5040 if (dist1near >= 0 && dist2near < 0 && dist1far < 0 && dist2far < 0){node = node->children[1];continue;}
5041 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;}
5042 if (dist1near >= 0 && dist2near < 0 && dist1far >= 0 && dist2far < 0){}
5043 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;}
5044 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;}
5045 if (dist1near >= 0 && dist2near >= 0 && dist1far < 0 && dist2far >= 0){node = node->children[0];continue;}
5046 if (dist1near >= 0 && dist2near >= 0 && dist1far >= 0 && dist2far < 0){node = node->children[0];continue;}
5047 if (dist1near >= 0 && dist2near >= 0 && dist1far >= 0 && dist2far >= 0){node = node->children[0];continue;}
5049 if (dist2near < 0) // d1n<0 && d2n<0
5051 if (dist2near < 0) // d1n<0 && d2n<0
5053 if (dist2near < 0) // d1n<0 && d2n<0
5056 else // d1n<0 && d2n>0
5060 else // d1n<0 && d2n>0
5062 if (dist2near < 0) // d1n<0 && d2n<0
5065 else // d1n<0 && d2n>0
5070 else // d1n<0 && d2n>0
5076 if (dist2near < 0) // d1n>0 && d2n<0
5079 else // d1n>0 && d2n>0
5083 if (dist1near < 0 == dist1far < 0 == dist2near < 0 == dist2far < 0)
5085 node = node->children[startside];
5088 if (dist1near < dist2near)
5093 node = node->children[0];
5098 node = node->children[1];
5101 // dist1near < 0 && dist2far >= 0
5107 startside = dist1near < 0 ? (dist1far < 0 ? 1 : 2) : (dist1far < 0 ? 2 : 0);
5108 endside = dist2near < 0 ? (dist2far < 0 ? 1 : 2) : (dist2far < 0 ? 2 : 0);
5109 if (startside == 2 || endside == 2)
5111 // brushes cross plane
5112 // do not clip anything, just take both sides
5113 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5114 node = node->children[1];
5116 else if (startside == endside)
5117 node = node->children[startside];
5118 else if (startside == 0) // endside = 1 (start infront, end behind)
5121 else // startside == 1 endside = 0 (start behind, end infront)
5127 node = node->children[startside];
5130 // start and end brush cross plane
5136 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5137 node = node->children[1];
5138 else if (dist1near < 0 && dist1far < 0 && dist2near >= 0 && dist2far >= 0)
5139 else if (dist1near >= 0 && dist1far >= 0 && dist2near < 0 && dist2far < 0)
5140 else if (dist1near >= 0 && dist1far >= 0 && dist2near >= 0 && dist2far >= 0)
5141 node = node->children[0];
5143 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5144 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5145 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5146 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5147 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5150 else if (dist1near >= 0 && dist1far >= 0)
5153 else // mixed (lying on plane)
5157 if (dist2near < 0 && dist2far < 0)
5161 node = node->children[1];
5163 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5164 node = node->children[0];
5165 else if (dist1near >= 0 && dist1far >= 0 && dist2near >= 0 && dist2far >= 0)
5166 node = node->children[1];
5170 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5171 node = node->children[1];
5173 sides = dist1near || dist1near < 0 | dist1far < 0 | dist2near < 0 | dist
5174 startside = dist1 < 0;
5175 endside = dist2 < 0;
5176 if (startside == endside)
5178 // most of the time the line fragment is on one side of the plane
5179 node = node->children[startside];
5183 // line crosses node plane, split the line
5184 midfrac = dist1 / (dist1 - dist2);
5185 VectorLerp(start, midfrac, end, mid);
5186 // take the near side first
5187 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5188 if (midfrac <= trace->fraction)
5189 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5197 nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
5198 nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
5199 nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
5200 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
5201 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
5202 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
5203 if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
5207 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5208 node = node->children[1];
5211 // FIXME: could be made faster by copying TraceLine code and making it use
5212 // box plane distances... (variant on the BoxOnPlaneSide code)
5215 nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
5216 nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
5217 nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
5218 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
5219 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
5220 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
5221 if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
5225 if (mod_q3bsp_debugtracebrush.integer == 2)
5227 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5228 node = node->children[1];
5231 else if (mod_q3bsp_debugtracebrush.integer == 1)
5233 // recurse down node sides
5234 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5237 // segment box crosses plane
5238 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5239 node = node->children[1];
5242 // take whichever side the segment box is on
5243 node = node->children[sides - 1];
5248 // recurse down node sides
5249 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5252 // segment box crosses plane
5253 // now check start and end brush boxes to handle a lot of 'diagonal' cases more efficiently...
5254 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, node->plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, node->plane);
5257 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5258 node = node->children[1];
5262 // take whichever side the segment box is on
5263 node = node->children[sides - 1];
5269 // FIXME: could be made faster by copying TraceLine code and making it use
5270 // box plane distances... (variant on the BoxOnPlaneSide code)
5273 nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
5274 nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
5275 nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
5276 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
5277 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
5278 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
5279 if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
5283 if (mod_q3bsp_debugtracebrush.integer == 2)
5285 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5286 node = node->children[1];
5288 else if (mod_q3bsp_debugtracebrush.integer == 1)
5290 // recurse down node sides
5291 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5294 // segment box crosses plane
5295 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5296 node = node->children[1];
5300 // take whichever side the segment box is on
5301 node = node->children[sides - 1];
5306 // recurse down node sides
5307 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5310 // segment box crosses plane
5311 // now check start and end brush boxes to handle a lot of 'diagonal' cases more efficiently...
5312 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, node->plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, node->plane);
5315 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5319 // take whichever side the segment box is on
5320 node = node->children[sides - 1];
5325 leaf = (mleaf_t *)node;
5326 for (i = 0;i < leaf->numleafbrushes;i++)
5328 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5329 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5331 brush->markframe = markframe;
5332 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
5335 if (mod_q3bsp_curves_collisions.integer)
5337 for (i = 0;i < leaf->numleafsurfaces;i++)
5339 surface = model->data_surfaces + leaf->firstleafsurface[i];
5340 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5342 surface->collisionmarkframe = markframe;
5343 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
5349 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)
5352 float segmentmins[3], segmentmaxs[3];
5353 colbrushf_t *thisbrush_start, *thisbrush_end;
5354 matrix4x4_t startmatrix, endmatrix;
5355 static int markframe = 0;
5356 msurface_t *surface;
5358 memset(trace, 0, sizeof(*trace));
5359 trace->fraction = 1;
5360 trace->realfraction = 1;
5361 trace->hitsupercontentsmask = hitsupercontentsmask;
5362 Matrix4x4_CreateIdentity(&startmatrix);
5363 Matrix4x4_CreateIdentity(&endmatrix);
5364 segmentmins[0] = min(boxstartmins[0], boxendmins[0]);
5365 segmentmins[1] = min(boxstartmins[1], boxendmins[1]);
5366 segmentmins[2] = min(boxstartmins[2], boxendmins[2]);
5367 segmentmaxs[0] = max(boxstartmaxs[0], boxendmaxs[0]);
5368 segmentmaxs[1] = max(boxstartmaxs[1], boxendmaxs[1]);
5369 segmentmaxs[2] = max(boxstartmaxs[2], boxendmaxs[2]);
5370 if (mod_q3bsp_optimizedtraceline.integer && VectorCompare(boxstartmins, boxstartmaxs) && VectorCompare(boxendmins, boxendmaxs))
5372 if (VectorCompare(boxstartmins, boxendmins))
5375 if (model->brush.submodel)
5377 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5378 if (brush->colbrushf)
5379 Collision_TracePointBrushFloat(trace, boxstartmins, brush->colbrushf);
5382 Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, boxstartmins, ++markframe);
5387 if (model->brush.submodel)
5389 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5390 if (brush->colbrushf)
5391 Collision_TraceLineBrushFloat(trace, boxstartmins, boxendmins, brush->colbrushf, brush->colbrushf);
5392 if (mod_q3bsp_curves_collisions.integer)
5393 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5394 if (surface->num_collisiontriangles)
5395 Collision_TraceLineTriangleMeshFloat(trace, boxstartmins, boxendmins, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
5398 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, boxstartmins, boxendmins, 0, 1, boxstartmins, boxendmins, ++markframe, segmentmins, segmentmaxs);
5403 // box trace, performed as brush trace
5404 thisbrush_start = Collision_BrushForBox(&startmatrix, boxstartmins, boxstartmaxs);
5405 thisbrush_end = Collision_BrushForBox(&endmatrix, boxendmins, boxendmaxs);
5406 if (model->brush.submodel)
5408 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5409 if (brush->colbrushf)
5410 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush->colbrushf, brush->colbrushf);
5411 if (mod_q3bsp_curves_collisions.integer)
5412 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5413 if (surface->num_collisiontriangles)
5414 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
5417 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, model->brush.data_nodes, thisbrush_start, thisbrush_end, ++markframe, segmentmins, segmentmaxs);
5421 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
5423 int supercontents = 0;
5424 if (nativecontents & CONTENTSQ3_SOLID)
5425 supercontents |= SUPERCONTENTS_SOLID;
5426 if (nativecontents & CONTENTSQ3_WATER)
5427 supercontents |= SUPERCONTENTS_WATER;
5428 if (nativecontents & CONTENTSQ3_SLIME)
5429 supercontents |= SUPERCONTENTS_SLIME;
5430 if (nativecontents & CONTENTSQ3_LAVA)
5431 supercontents |= SUPERCONTENTS_LAVA;
5432 if (nativecontents & CONTENTSQ3_BODY)
5433 supercontents |= SUPERCONTENTS_BODY;
5434 if (nativecontents & CONTENTSQ3_CORPSE)
5435 supercontents |= SUPERCONTENTS_CORPSE;
5436 if (nativecontents & CONTENTSQ3_NODROP)
5437 supercontents |= SUPERCONTENTS_NODROP;
5438 if (nativecontents & CONTENTSQ3_PLAYERCLIP)
5439 supercontents |= SUPERCONTENTS_PLAYERCLIP;
5440 if (nativecontents & CONTENTSQ3_MONSTERCLIP)
5441 supercontents |= SUPERCONTENTS_MONSTERCLIP;
5442 if (nativecontents & CONTENTSQ3_DONOTENTER)
5443 supercontents |= SUPERCONTENTS_DONOTENTER;
5444 return supercontents;
5447 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
5449 int nativecontents = 0;
5450 if (supercontents & SUPERCONTENTS_SOLID)
5451 nativecontents |= CONTENTSQ3_SOLID;
5452 if (supercontents & SUPERCONTENTS_WATER)
5453 nativecontents |= CONTENTSQ3_WATER;
5454 if (supercontents & SUPERCONTENTS_SLIME)
5455 nativecontents |= CONTENTSQ3_SLIME;
5456 if (supercontents & SUPERCONTENTS_LAVA)
5457 nativecontents |= CONTENTSQ3_LAVA;
5458 if (supercontents & SUPERCONTENTS_BODY)
5459 nativecontents |= CONTENTSQ3_BODY;
5460 if (supercontents & SUPERCONTENTS_CORPSE)
5461 nativecontents |= CONTENTSQ3_CORPSE;
5462 if (supercontents & SUPERCONTENTS_NODROP)
5463 nativecontents |= CONTENTSQ3_NODROP;
5464 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
5465 nativecontents |= CONTENTSQ3_PLAYERCLIP;
5466 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
5467 nativecontents |= CONTENTSQ3_MONSTERCLIP;
5468 if (supercontents & SUPERCONTENTS_DONOTENTER)
5469 nativecontents |= CONTENTSQ3_DONOTENTER;
5470 return nativecontents;
5473 void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
5478 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
5479 node = node->children[1];
5481 numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
5482 if (loadmodel->brush.num_leafs < numleafs)
5483 loadmodel->brush.num_leafs = numleafs;
5486 void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
5488 int i, j, numshadowmeshtriangles;
5489 q3dheader_t *header;
5490 float corner[3], yawradius, modelradius;
5491 msurface_t *surface;
5493 mod->type = mod_brushq3;
5494 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
5497 header = (q3dheader_t *)buffer;
5499 i = LittleLong(header->version);
5500 if (i != Q3BSPVERSION)
5501 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
5502 mod->brush.ishlbsp = false;
5503 mod->brush.ismcbsp = false;
5504 if (loadmodel->isworldmodel)
5506 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
5507 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
5510 mod->soundfromcenter = true;
5511 mod->TraceBox = Mod_Q3BSP_TraceBox;
5512 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
5513 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
5514 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
5515 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
5516 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
5517 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
5518 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
5519 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
5520 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5521 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
5522 mod->Draw = R_Q1BSP_Draw;
5523 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
5524 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
5525 mod->DrawLight = R_Q1BSP_DrawLight;
5527 mod_base = (qbyte *)header;
5529 // swap all the lumps
5530 header->ident = LittleLong(header->ident);
5531 header->version = LittleLong(header->version);
5532 for (i = 0;i < Q3HEADER_LUMPS;i++)
5534 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
5535 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
5538 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
5539 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
5540 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
5541 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
5542 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
5543 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
5544 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
5545 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
5546 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS]);
5547 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
5548 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
5549 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
5550 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
5551 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
5552 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
5553 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
5554 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
5555 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
5557 // the MakePortals code works fine on the q3bsp data as well
5558 Mod_Q1BSP_MakePortals();
5560 // make a single combined shadow mesh to allow optimized shadow volume creation
5561 numshadowmeshtriangles = 0;
5562 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5564 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
5565 numshadowmeshtriangles += surface->num_triangles;
5567 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
5568 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5569 if (surface->groupmesh)
5570 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));
5571 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
5572 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
5574 loadmodel->brush.num_leafs = 0;
5575 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
5577 if (loadmodel->isworldmodel)
5579 // clear out any stale submodels or worldmodels lying around
5580 // if we did this clear before now, an error might abort loading and
5581 // leave things in a bad state
5582 Mod_RemoveStaleWorldModels(loadmodel);
5586 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
5591 // LordHavoc: only register submodels if it is the world
5592 // (prevents external bsp models from replacing world submodels with
5594 if (!loadmodel->isworldmodel)
5596 // duplicate the basic information
5597 sprintf(name, "*%i", i);
5598 mod = Mod_FindName(name);
5600 strcpy(mod->name, name);
5601 // textures and memory belong to the main model
5602 mod->texturepool = NULL;
5603 mod->mempool = NULL;
5604 mod->brush.GetPVS = NULL;
5605 mod->brush.FatPVS = NULL;
5606 mod->brush.BoxTouchingPVS = NULL;
5607 mod->brush.BoxTouchingLeafPVS = NULL;
5608 mod->brush.BoxTouchingVisibleLeafs = NULL;
5609 mod->brush.LightPoint = NULL;
5610 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5612 mod->brush.submodel = i;
5614 // make the model surface list (used by shadowing/lighting)
5615 mod->firstmodelsurface = mod->brushq3.data_models[i].firstface;
5616 mod->nummodelsurfaces = mod->brushq3.data_models[i].numfaces;
5617 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
5618 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
5619 mod->surfacelist = Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
5620 for (j = 0;j < mod->nummodelsurfaces;j++)
5621 mod->surfacelist[j] = mod->firstmodelsurface + j;
5623 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
5624 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
5625 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
5626 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
5627 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
5628 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
5629 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
5630 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
5631 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
5632 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
5633 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
5634 mod->yawmins[2] = mod->normalmins[2];
5635 mod->yawmaxs[2] = mod->normalmaxs[2];
5636 mod->radius = modelradius;
5637 mod->radius2 = modelradius * modelradius;
5639 for (j = 0;j < mod->nummodelsurfaces;j++)
5640 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->surfaceflags & Q3SURFACEFLAG_SKY)
5642 if (j < mod->nummodelsurfaces)
5643 mod->DrawSky = R_Q1BSP_DrawSky;
5647 void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
5649 int i = LittleLong(((int *)buffer)[1]);
5650 if (i == Q3BSPVERSION)
5651 Mod_Q3BSP_Load(mod,buffer, bufferend);
5652 else if (i == Q2BSPVERSION)
5653 Mod_Q2BSP_Load(mod,buffer, bufferend);
5655 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i\n", i);
5658 void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend)
5660 Host_Error("Mod_MAP_Load: not yet implemented\n");