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 = (texture_t *)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, 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 = (qbyte *)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] != '*' && 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 = (qbyte *)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 = (qbyte *)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 = (qbyte *)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 = (qbyte *)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 = (mlight_t *)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 = (qbyte *)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 = (char *)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 = (dvertex_t *)(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 = (mvertex_t *)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 // The following two functions should be removed and MSG_* or SZ_* function sets adjusted so they
1566 // can be used for this
1568 int SB_ReadInt (qbyte **buffer)
1571 i = ((*buffer)[0]) + 256*((*buffer)[1]) + 65536*((*buffer)[2]) + 16777216*((*buffer)[3]);
1577 float SB_ReadFloat (qbyte **buffer)
1585 u.i = SB_ReadInt (buffer);
1589 static void Mod_Q1BSP_LoadSubmodels(lump_t *l, hullinfo_t *hullinfo)
1595 index = (qbyte *)(mod_base + l->fileofs);
1596 if (l->filelen % (48+4*hullinfo->filehulls))
1597 Host_Error ("Mod_Q1BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
1599 count = l->filelen / (48+4*hullinfo->filehulls);
1600 out = (dmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
1602 loadmodel->brushq1.submodels = out;
1603 loadmodel->brush.numsubmodels = count;
1605 for (i = 0; i < count; i++, out++)
1607 // spread out the mins / maxs by a pixel
1608 out->mins[0] = SB_ReadFloat (&index) - 1;
1609 out->mins[1] = SB_ReadFloat (&index) - 1;
1610 out->mins[2] = SB_ReadFloat (&index) - 1;
1611 out->maxs[0] = SB_ReadFloat (&index) + 1;
1612 out->maxs[1] = SB_ReadFloat (&index) + 1;
1613 out->maxs[2] = SB_ReadFloat (&index) + 1;
1614 out->origin[0] = SB_ReadFloat (&index);
1615 out->origin[1] = SB_ReadFloat (&index);
1616 out->origin[2] = SB_ReadFloat (&index);
1617 for (j = 0; j < hullinfo->filehulls; j++)
1618 out->headnode[j] = SB_ReadInt (&index);
1619 out->visleafs = SB_ReadInt (&index);
1620 out->firstface = SB_ReadInt (&index);
1621 out->numfaces = SB_ReadInt (&index);
1625 static void Mod_Q1BSP_LoadEdges(lump_t *l)
1631 in = (dedge_t *)(mod_base + l->fileofs);
1632 if (l->filelen % sizeof(*in))
1633 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
1634 count = l->filelen / sizeof(*in);
1635 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1637 loadmodel->brushq1.edges = out;
1638 loadmodel->brushq1.numedges = count;
1640 for ( i=0 ; i<count ; i++, in++, out++)
1642 out->v[0] = (unsigned short)LittleShort(in->v[0]);
1643 out->v[1] = (unsigned short)LittleShort(in->v[1]);
1647 static void Mod_Q1BSP_LoadTexinfo(lump_t *l)
1651 int i, j, k, count, miptex;
1653 in = (texinfo_t *)(mod_base + l->fileofs);
1654 if (l->filelen % sizeof(*in))
1655 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
1656 count = l->filelen / sizeof(*in);
1657 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1659 loadmodel->brushq1.texinfo = out;
1660 loadmodel->brushq1.numtexinfo = count;
1662 for (i = 0;i < count;i++, in++, out++)
1664 for (k = 0;k < 2;k++)
1665 for (j = 0;j < 4;j++)
1666 out->vecs[k][j] = LittleFloat(in->vecs[k][j]);
1668 miptex = LittleLong(in->miptex);
1669 out->flags = LittleLong(in->flags);
1671 out->texture = NULL;
1672 if (loadmodel->data_textures)
1674 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
1675 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
1677 out->texture = loadmodel->data_textures + miptex;
1679 if (out->flags & TEX_SPECIAL)
1681 // if texture chosen is NULL or the shader needs a lightmap,
1682 // force to notexture water shader
1683 if (out->texture == NULL || out->texture->basematerialflags & MATERIALFLAG_WALL)
1684 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 1);
1688 // if texture chosen is NULL, force to notexture
1689 if (out->texture == NULL)
1690 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 2);
1696 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
1701 mins[0] = mins[1] = mins[2] = 9999;
1702 maxs[0] = maxs[1] = maxs[2] = -9999;
1704 for (i = 0;i < numverts;i++)
1706 for (j = 0;j < 3;j++, v++)
1716 #define MAX_SUBDIVPOLYTRIANGLES 4096
1717 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
1719 static int subdivpolyverts, subdivpolytriangles;
1720 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
1721 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
1723 static int subdivpolylookupvert(vec3_t v)
1726 for (i = 0;i < subdivpolyverts;i++)
1727 if (subdivpolyvert[i][0] == v[0]
1728 && subdivpolyvert[i][1] == v[1]
1729 && subdivpolyvert[i][2] == v[2])
1731 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
1732 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
1733 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
1734 return subdivpolyverts++;
1737 static void SubdividePolygon(int numverts, float *verts)
1739 int i, i1, i2, i3, f, b, c, p;
1740 vec3_t mins, maxs, front[256], back[256];
1741 float m, *pv, *cv, dist[256], frac;
1744 Host_Error("SubdividePolygon: ran out of verts in buffer");
1746 BoundPoly(numverts, verts, mins, maxs);
1748 for (i = 0;i < 3;i++)
1750 m = (mins[i] + maxs[i]) * 0.5;
1751 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
1752 if (maxs[i] - m < 8)
1754 if (m - mins[i] < 8)
1758 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
1759 dist[c] = cv[i] - m;
1762 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
1766 VectorCopy(pv, front[f]);
1771 VectorCopy(pv, back[b]);
1774 if (dist[p] == 0 || dist[c] == 0)
1776 if ((dist[p] > 0) != (dist[c] > 0) )
1779 frac = dist[p] / (dist[p] - dist[c]);
1780 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
1781 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
1782 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
1788 SubdividePolygon(f, front[0]);
1789 SubdividePolygon(b, back[0]);
1793 i1 = subdivpolylookupvert(verts);
1794 i2 = subdivpolylookupvert(verts + 3);
1795 for (i = 2;i < numverts;i++)
1797 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
1799 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
1803 i3 = subdivpolylookupvert(verts + i * 3);
1804 subdivpolyindex[subdivpolytriangles][0] = i1;
1805 subdivpolyindex[subdivpolytriangles][1] = i2;
1806 subdivpolyindex[subdivpolytriangles][2] = i3;
1808 subdivpolytriangles++;
1812 //Breaks a polygon up along axial 64 unit
1813 //boundaries so that turbulent and sky warps
1814 //can be done reasonably.
1815 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
1821 subdivpolytriangles = 0;
1822 subdivpolyverts = 0;
1823 SubdividePolygon(surface->num_vertices, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex));
1824 if (subdivpolytriangles < 1)
1825 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?\n");
1827 surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
1828 mesh->num_vertices = subdivpolyverts;
1829 mesh->num_triangles = subdivpolytriangles;
1830 mesh->vertex = (surfvertex_t *)(mesh + 1);
1831 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
1832 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
1834 for (i = 0;i < mesh->num_triangles;i++)
1835 for (j = 0;j < 3;j++)
1836 mesh->index[i*3+j] = subdivpolyindex[i][j];
1838 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
1840 VectorCopy(subdivpolyvert[i], v->v);
1841 v->st[0] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[0]);
1842 v->st[1] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[1]);
1847 static void Mod_Q1BSP_LoadFaces(lump_t *l)
1850 msurface_t *surface;
1851 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris;
1852 float texmins[2], texmaxs[2], val;
1854 in = (dface_t *)(mod_base + l->fileofs);
1855 if (l->filelen % sizeof(*in))
1856 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
1857 count = l->filelen / sizeof(*in);
1858 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
1859 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
1861 loadmodel->num_surfaces = count;
1865 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs);surfacenum < count;surfacenum++, in++)
1867 numedges = LittleShort(in->numedges);
1868 totalverts += numedges;
1869 totaltris += numedges - 2;
1872 // TODO: split up into multiple meshes as needed to avoid exceeding 65536
1874 loadmodel->nummeshes = 1;
1875 loadmodel->meshlist = (surfmesh_t **)Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t *));
1876 loadmodel->meshlist[0] = Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false, false);
1880 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs), surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, in++, surface++)
1882 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
1884 // FIXME: validate edges, texinfo, etc?
1885 firstedge = LittleLong(in->firstedge);
1886 numedges = LittleShort(in->numedges);
1887 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)
1888 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)\n", firstedge, numedges, loadmodel->brushq1.numsurfedges);
1889 i = LittleShort(in->texinfo);
1890 if ((unsigned int) i >= (unsigned int) loadmodel->brushq1.numtexinfo)
1891 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)\n", i, loadmodel->brushq1.numtexinfo);
1892 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + i;
1893 surface->texture = surface->lightmapinfo->texinfo->texture;
1895 planenum = LittleShort(in->planenum);
1896 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
1897 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)\n", planenum, loadmodel->brush.num_planes);
1899 //surface->flags = surface->texture->flags;
1900 //if (LittleShort(in->side))
1901 // surface->flags |= SURF_PLANEBACK;
1902 //surface->plane = loadmodel->brush.data_planes + planenum;
1904 surface->groupmesh = loadmodel->meshlist[0];
1905 surface->num_firstvertex = totalverts;
1906 surface->num_vertices = numedges;
1907 surface->num_firsttriangle = totaltris;
1908 surface->num_triangles = numedges - 2;
1909 totalverts += numedges;
1910 totaltris += numedges - 2;
1912 // convert edges back to a normal polygon
1913 for (i = 0;i < surface->num_vertices;i++)
1915 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
1918 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
1920 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
1921 s = DotProduct(((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
1922 t = DotProduct(((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
1923 (surface->groupmesh->data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
1924 (surface->groupmesh->data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
1925 (surface->groupmesh->data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
1926 (surface->groupmesh->data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
1927 (surface->groupmesh->data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
1930 for (i = 0;i < surface->num_triangles;i++)
1932 (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
1933 (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
1934 (surface->groupmesh->data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
1937 // compile additional data about the surface geometry
1938 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);
1939 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex));
1941 // generate surface extents information
1942 texmins[0] = texmaxs[0] = DotProduct((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
1943 texmins[1] = texmaxs[1] = DotProduct((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
1944 for (i = 1;i < surface->num_vertices;i++)
1946 for (j = 0;j < 2;j++)
1948 val = DotProduct((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
1949 texmins[j] = min(texmins[j], val);
1950 texmaxs[j] = max(texmaxs[j], val);
1953 for (i = 0;i < 2;i++)
1955 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
1956 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
1959 smax = surface->lightmapinfo->extents[0] >> 4;
1960 tmax = surface->lightmapinfo->extents[1] >> 4;
1961 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
1962 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
1965 for (i = 0;i < MAXLIGHTMAPS;i++)
1966 surface->lightmapinfo->styles[i] = in->styles[i];
1967 // force lightmap upload on first time seeing the surface
1968 surface->cached_dlight = true;
1969 surface->lightmapinfo->lightmaptexturestride = 0;
1970 surface->lightmaptexture = NULL;
1971 i = LittleLong(in->lightofs);
1974 surface->lightmapinfo->samples = NULL;
1975 // give non-lightmapped water a 1x white lightmap
1976 if ((surface->texture->basematerialflags & MATERIALFLAG_WATER) && (surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
1978 surface->lightmapinfo->samples = (qbyte *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
1979 surface->lightmapinfo->styles[0] = 0;
1980 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
1983 else if (loadmodel->brush.ishlbsp) // LordHavoc: HalfLife map (bsp version 30)
1984 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + i;
1985 else // LordHavoc: white lighting (bsp version 29)
1986 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (i * 3);
1988 if (!(surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
1991 float u, v, ubase, vbase, uscale, vscale;
1993 if (ssize > 256 || tsize > 256)
1994 Host_Error("Bad surface extents");
1995 // stainmap for permanent marks on walls
1996 surface->lightmapinfo->stainsamples = (qbyte *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
1998 memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
2000 if (r_miplightmaps.integer)
2002 surface->lightmapinfo->lightmaptexturestride = ssize;
2003 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);
2007 surface->lightmapinfo->lightmaptexturestride = R_CompatibleFragmentWidth(ssize, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, 0);
2008 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);
2010 R_FragmentLocation(surface->lightmaptexture, NULL, NULL, &ubase, &vbase, &uscale, &vscale);
2011 uscale = (uscale - ubase) / ssize;
2012 vscale = (vscale - vbase) / tsize;
2014 for (i = 0;i < surface->num_vertices;i++)
2016 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);
2017 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);
2018 (surface->groupmesh->data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
2019 (surface->groupmesh->data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
2020 // LordHavoc: calc lightmap data offset for vertex lighting to use
2023 (surface->groupmesh->data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
2029 static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
2032 // Host_Error("Mod_Q1BSP_LoadNodes_RecursiveSetParent: runaway recursion\n");
2033 node->parent = parent;
2036 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
2037 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
2041 static void Mod_Q1BSP_LoadNodes(lump_t *l)
2047 in = (dnode_t *)(mod_base + l->fileofs);
2048 if (l->filelen % sizeof(*in))
2049 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
2050 count = l->filelen / sizeof(*in);
2051 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2053 loadmodel->brush.data_nodes = out;
2054 loadmodel->brush.num_nodes = count;
2056 for ( i=0 ; i<count ; i++, in++, out++)
2058 for (j=0 ; j<3 ; j++)
2060 out->mins[j] = LittleShort(in->mins[j]);
2061 out->maxs[j] = LittleShort(in->maxs[j]);
2064 p = LittleLong(in->planenum);
2065 out->plane = loadmodel->brush.data_planes + p;
2067 out->firstsurface = LittleShort(in->firstface);
2068 out->numsurfaces = LittleShort(in->numfaces);
2070 for (j=0 ; j<2 ; j++)
2072 p = LittleShort(in->children[j]);
2074 out->children[j] = loadmodel->brush.data_nodes + p;
2076 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + (-1 - p));
2080 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
2083 static void Mod_Q1BSP_LoadLeafs(lump_t *l)
2089 in = (dleaf_t *)(mod_base + l->fileofs);
2090 if (l->filelen % sizeof(*in))
2091 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2092 count = l->filelen / sizeof(*in);
2093 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2095 loadmodel->brush.data_leafs = out;
2096 loadmodel->brush.num_leafs = count;
2097 // get visleafs from the submodel data
2098 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2099 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2100 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2101 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2103 for ( i=0 ; i<count ; i++, in++, out++)
2105 for (j=0 ; j<3 ; j++)
2107 out->mins[j] = LittleShort(in->mins[j]);
2108 out->maxs[j] = LittleShort(in->maxs[j]);
2111 // FIXME: this function could really benefit from some error checking
2113 out->contents = LittleLong(in->contents);
2115 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + LittleShort(in->firstmarksurface);
2116 out->numleafsurfaces = LittleShort(in->nummarksurfaces);
2117 if (out->firstleafsurface < 0 || LittleShort(in->firstmarksurface) + out->numleafsurfaces > loadmodel->brush.num_leafsurfaces)
2119 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);
2120 out->firstleafsurface = NULL;
2121 out->numleafsurfaces = 0;
2124 out->clusterindex = i - 1;
2125 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
2126 out->clusterindex = -1;
2128 p = LittleLong(in->visofs);
2129 // ignore visofs errors on leaf 0 (solid)
2130 if (p >= 0 && out->clusterindex >= 0)
2132 if (p >= loadmodel->brushq1.num_compressedpvs)
2133 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
2135 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);
2138 for (j = 0;j < 4;j++)
2139 out->ambient_sound_level[j] = in->ambient_level[j];
2141 // FIXME: Insert caustics here
2145 static void Mod_Q1BSP_LoadClipnodes(lump_t *l, hullinfo_t *hullinfo)
2147 dclipnode_t *in, *out;
2151 in = (dclipnode_t *)(mod_base + l->fileofs);
2152 if (l->filelen % sizeof(*in))
2153 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
2154 count = l->filelen / sizeof(*in);
2155 out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2157 loadmodel->brushq1.clipnodes = out;
2158 loadmodel->brushq1.numclipnodes = count;
2160 for (i = 1; i < hullinfo->numhulls; i++)
2162 hull = &loadmodel->brushq1.hulls[i];
2163 hull->clipnodes = out;
2164 hull->firstclipnode = 0;
2165 hull->lastclipnode = count-1;
2166 hull->planes = loadmodel->brush.data_planes;
2167 hull->clip_mins[0] = hullinfo->hullsizes[i][0][0];
2168 hull->clip_mins[1] = hullinfo->hullsizes[i][0][1];
2169 hull->clip_mins[2] = hullinfo->hullsizes[i][0][2];
2170 hull->clip_maxs[0] = hullinfo->hullsizes[i][1][0];
2171 hull->clip_maxs[1] = hullinfo->hullsizes[i][1][1];
2172 hull->clip_maxs[2] = hullinfo->hullsizes[i][1][2];
2173 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2176 for (i=0 ; i<count ; i++, out++, in++)
2178 out->planenum = LittleLong(in->planenum);
2179 out->children[0] = LittleShort(in->children[0]);
2180 out->children[1] = LittleShort(in->children[1]);
2181 if (out->children[0] >= count || out->children[1] >= count)
2182 Host_Error("Corrupt clipping hull(out of range child)\n");
2186 //Duplicate the drawing hull structure as a clipping hull
2187 static void Mod_Q1BSP_MakeHull0(void)
2194 hull = &loadmodel->brushq1.hulls[0];
2196 in = loadmodel->brush.data_nodes;
2197 out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(dclipnode_t));
2199 hull->clipnodes = out;
2200 hull->firstclipnode = 0;
2201 hull->lastclipnode = loadmodel->brush.num_nodes - 1;
2202 hull->planes = loadmodel->brush.data_planes;
2204 for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
2206 out->planenum = in->plane - loadmodel->brush.data_planes;
2207 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
2208 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
2212 static void Mod_Q1BSP_LoadLeaffaces(lump_t *l)
2217 in = (short *)(mod_base + l->fileofs);
2218 if (l->filelen % sizeof(*in))
2219 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
2220 loadmodel->brush.num_leafsurfaces = l->filelen / sizeof(*in);
2221 loadmodel->brush.data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
2223 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
2225 j = (unsigned) LittleShort(in[i]);
2226 if (j >= loadmodel->num_surfaces)
2227 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
2228 loadmodel->brush.data_leafsurfaces[i] = j;
2232 static void Mod_Q1BSP_LoadSurfedges(lump_t *l)
2237 in = (int *)(mod_base + l->fileofs);
2238 if (l->filelen % sizeof(*in))
2239 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
2240 loadmodel->brushq1.numsurfedges = l->filelen / sizeof(*in);
2241 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
2243 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
2244 loadmodel->brushq1.surfedges[i] = LittleLong(in[i]);
2248 static void Mod_Q1BSP_LoadPlanes(lump_t *l)
2254 in = (dplane_t *)(mod_base + l->fileofs);
2255 if (l->filelen % sizeof(*in))
2256 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
2258 loadmodel->brush.num_planes = l->filelen / sizeof(*in);
2259 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
2261 for (i = 0;i < loadmodel->brush.num_planes;i++, in++, out++)
2263 out->normal[0] = LittleFloat(in->normal[0]);
2264 out->normal[1] = LittleFloat(in->normal[1]);
2265 out->normal[2] = LittleFloat(in->normal[2]);
2266 out->dist = LittleFloat(in->dist);
2272 static void Mod_Q1BSP_LoadMapBrushes(void)
2276 int submodel, numbrushes;
2277 qboolean firstbrush;
2278 char *text, *maptext;
2279 char mapfilename[MAX_QPATH];
2280 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
2281 strlcat (mapfilename, ".map", sizeof (mapfilename));
2282 maptext = (qbyte*) FS_LoadFile(mapfilename, tempmempool, false);
2286 if (!COM_ParseToken(&data, false))
2291 if (!COM_ParseToken(&data, false))
2293 if (com_token[0] != '{')
2299 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
2302 if (!COM_ParseToken(&data, false))
2304 if (com_token[0] == '}')
2305 break; // end of entity
2306 if (com_token[0] == '{')
2313 if (submodel > loadmodel->brush.numsubmodels)
2315 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
2319 model = loadmodel->brush.submodels[submodel];
2326 if (!COM_ParseToken(&data, false))
2328 if (com_token[0] == '}')
2329 break; // end of brush
2330 // each brush face should be this format:
2331 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
2332 // FIXME: support hl .map format
2333 for (pointnum = 0;pointnum < 3;pointnum++)
2335 COM_ParseToken(&data, false);
2336 for (componentnum = 0;componentnum < 3;componentnum++)
2338 COM_ParseToken(&data, false);
2339 point[pointnum][componentnum] = atof(com_token);
2341 COM_ParseToken(&data, false);
2343 COM_ParseToken(&data, false);
2344 strlcpy(facetexture, com_token, sizeof(facetexture));
2345 COM_ParseToken(&data, false);
2346 //scroll_s = atof(com_token);
2347 COM_ParseToken(&data, false);
2348 //scroll_t = atof(com_token);
2349 COM_ParseToken(&data, false);
2350 //rotate = atof(com_token);
2351 COM_ParseToken(&data, false);
2352 //scale_s = atof(com_token);
2353 COM_ParseToken(&data, false);
2354 //scale_t = atof(com_token);
2355 TriangleNormal(point[0], point[1], point[2], planenormal);
2356 VectorNormalizeDouble(planenormal);
2357 planedist = DotProduct(point[0], planenormal);
2358 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
2368 #define MAX_PORTALPOINTS 64
2370 typedef struct portal_s
2373 mnode_t *nodes[2]; // [0] = front side of plane
2374 struct portal_s *next[2];
2376 double points[3*MAX_PORTALPOINTS];
2377 struct portal_s *chain; // all portals are linked into a list
2381 static portal_t *portalchain;
2388 static portal_t *AllocPortal(void)
2391 p = (portal_t *)Mem_Alloc(loadmodel->mempool, sizeof(portal_t));
2392 p->chain = portalchain;
2397 static void FreePortal(portal_t *p)
2402 static void Mod_Q1BSP_RecursiveRecalcNodeBBox(mnode_t *node)
2404 // process only nodes (leafs already had their box calculated)
2408 // calculate children first
2409 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[0]);
2410 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[1]);
2412 // make combined bounding box from children
2413 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
2414 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
2415 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
2416 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
2417 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
2418 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
2421 static void Mod_Q1BSP_FinalizePortals(void)
2423 int i, j, numportals, numpoints;
2424 portal_t *p, *pnext;
2427 mleaf_t *leaf, *endleaf;
2429 // recalculate bounding boxes for all leafs(because qbsp is very sloppy)
2430 leaf = loadmodel->brush.data_leafs;
2431 endleaf = leaf + loadmodel->brush.num_leafs;
2432 for (;leaf < endleaf;leaf++)
2434 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
2435 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
2440 if (p->numpoints >= 3)
2442 for (i = 0;i < 2;i++)
2444 leaf = (mleaf_t *)p->nodes[i];
2445 for (j = 0;j < p->numpoints;j++)
2447 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
2448 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
2449 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
2450 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
2451 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
2452 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
2459 Mod_Q1BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes);
2461 // tally up portal and point counts
2467 // note: this check must match the one below or it will usually corrupt memory
2468 // 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
2469 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2472 numpoints += p->numpoints * 2;
2476 loadmodel->brush.data_portals = (mportal_t *)Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
2477 loadmodel->brush.num_portals = numportals;
2478 loadmodel->brush.data_portalpoints = (mvertex_t *)((qbyte *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
2479 loadmodel->brush.num_portalpoints = numpoints;
2480 // clear all leaf portal chains
2481 for (i = 0;i < loadmodel->brush.num_leafs;i++)
2482 loadmodel->brush.data_leafs[i].portals = NULL;
2483 // process all portals in the global portal chain, while freeing them
2484 portal = loadmodel->brush.data_portals;
2485 point = loadmodel->brush.data_portalpoints;
2492 // note: this check must match the one above or it will usually corrupt memory
2493 // 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
2494 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2496 // first make the back to front portal(forward portal)
2497 portal->points = point;
2498 portal->numpoints = p->numpoints;
2499 portal->plane.dist = p->plane.dist;
2500 VectorCopy(p->plane.normal, portal->plane.normal);
2501 portal->here = (mleaf_t *)p->nodes[1];
2502 portal->past = (mleaf_t *)p->nodes[0];
2504 for (j = 0;j < portal->numpoints;j++)
2506 VectorCopy(p->points + j*3, point->position);
2509 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2510 PlaneClassify(&portal->plane);
2512 // link into leaf's portal chain
2513 portal->next = portal->here->portals;
2514 portal->here->portals = portal;
2516 // advance to next portal
2519 // then make the front to back portal(backward portal)
2520 portal->points = point;
2521 portal->numpoints = p->numpoints;
2522 portal->plane.dist = -p->plane.dist;
2523 VectorNegate(p->plane.normal, portal->plane.normal);
2524 portal->here = (mleaf_t *)p->nodes[0];
2525 portal->past = (mleaf_t *)p->nodes[1];
2527 for (j = portal->numpoints - 1;j >= 0;j--)
2529 VectorCopy(p->points + j*3, point->position);
2532 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2533 PlaneClassify(&portal->plane);
2535 // link into leaf's portal chain
2536 portal->next = portal->here->portals;
2537 portal->here->portals = portal;
2539 // advance to next portal
2552 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
2555 Host_Error("AddPortalToNodes: NULL front node");
2557 Host_Error("AddPortalToNodes: NULL back node");
2558 if (p->nodes[0] || p->nodes[1])
2559 Host_Error("AddPortalToNodes: already included");
2560 // 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
2562 p->nodes[0] = front;
2563 p->next[0] = (portal_t *)front->portals;
2564 front->portals = (mportal_t *)p;
2567 p->next[1] = (portal_t *)back->portals;
2568 back->portals = (mportal_t *)p;
2573 RemovePortalFromNode
2576 static void RemovePortalFromNodes(portal_t *portal)
2580 void **portalpointer;
2582 for (i = 0;i < 2;i++)
2584 node = portal->nodes[i];
2586 portalpointer = (void **) &node->portals;
2589 t = (portal_t *)*portalpointer;
2591 Host_Error("RemovePortalFromNodes: portal not in leaf");
2595 if (portal->nodes[0] == node)
2597 *portalpointer = portal->next[0];
2598 portal->nodes[0] = NULL;
2600 else if (portal->nodes[1] == node)
2602 *portalpointer = portal->next[1];
2603 portal->nodes[1] = NULL;
2606 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2610 if (t->nodes[0] == node)
2611 portalpointer = (void **) &t->next[0];
2612 else if (t->nodes[1] == node)
2613 portalpointer = (void **) &t->next[1];
2615 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2620 static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
2623 mnode_t *front, *back, *other_node;
2624 mplane_t clipplane, *plane;
2625 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
2626 int numfrontpoints, numbackpoints;
2627 double frontpoints[3*MAX_PORTALPOINTS], backpoints[3*MAX_PORTALPOINTS];
2629 // if a leaf, we're done
2633 plane = node->plane;
2635 front = node->children[0];
2636 back = node->children[1];
2638 Host_Error("Mod_Q1BSP_RecursiveNodePortals: corrupt node hierarchy");
2640 // create the new portal by generating a polygon for the node plane,
2641 // and clipping it by all of the other portals(which came from nodes above this one)
2642 nodeportal = AllocPortal();
2643 nodeportal->plane = *plane;
2645 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);
2646 nodeportal->numpoints = 4;
2647 side = 0; // shut up compiler warning
2648 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
2650 clipplane = portal->plane;
2651 if (portal->nodes[0] == portal->nodes[1])
2652 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(1)");
2653 if (portal->nodes[0] == node)
2655 else if (portal->nodes[1] == node)
2657 clipplane.dist = -clipplane.dist;
2658 VectorNegate(clipplane.normal, clipplane.normal);
2662 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2664 for (i = 0;i < nodeportal->numpoints*3;i++)
2665 frontpoints[i] = nodeportal->points[i];
2666 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);
2667 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
2671 if (nodeportal->numpoints < 3)
2673 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
2674 nodeportal->numpoints = 0;
2676 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
2678 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
2679 nodeportal->numpoints = 0;
2682 AddPortalToNodes(nodeportal, front, back);
2684 // split the portals of this node along this node's plane and assign them to the children of this node
2685 // (migrating the portals downward through the tree)
2686 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
2688 if (portal->nodes[0] == portal->nodes[1])
2689 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(2)");
2690 if (portal->nodes[0] == node)
2692 else if (portal->nodes[1] == node)
2695 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2696 nextportal = portal->next[side];
2697 if (!portal->numpoints)
2700 other_node = portal->nodes[!side];
2701 RemovePortalFromNodes(portal);
2703 // cut the portal into two portals, one on each side of the node plane
2704 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);
2706 if (!numfrontpoints)
2709 AddPortalToNodes(portal, back, other_node);
2711 AddPortalToNodes(portal, other_node, back);
2717 AddPortalToNodes(portal, front, other_node);
2719 AddPortalToNodes(portal, other_node, front);
2723 // the portal is split
2724 splitportal = AllocPortal();
2725 temp = splitportal->chain;
2726 *splitportal = *portal;
2727 splitportal->chain = temp;
2728 for (i = 0;i < numbackpoints*3;i++)
2729 splitportal->points[i] = backpoints[i];
2730 splitportal->numpoints = numbackpoints;
2731 for (i = 0;i < numfrontpoints*3;i++)
2732 portal->points[i] = frontpoints[i];
2733 portal->numpoints = numfrontpoints;
2737 AddPortalToNodes(portal, front, other_node);
2738 AddPortalToNodes(splitportal, back, other_node);
2742 AddPortalToNodes(portal, other_node, front);
2743 AddPortalToNodes(splitportal, other_node, back);
2747 Mod_Q1BSP_RecursiveNodePortals(front);
2748 Mod_Q1BSP_RecursiveNodePortals(back);
2751 static void Mod_Q1BSP_MakePortals(void)
2754 Mod_Q1BSP_RecursiveNodePortals(loadmodel->brush.data_nodes);
2755 Mod_Q1BSP_FinalizePortals();
2758 static void Mod_Q1BSP_BuildLightmapUpdateChains(mempool_t *mempool, model_t *model)
2760 int i, j, stylecounts[256], totalcount, remapstyles[256];
2761 msurface_t *surface;
2762 memset(stylecounts, 0, sizeof(stylecounts));
2763 for (i = 0;i < model->nummodelsurfaces;i++)
2765 surface = model->data_surfaces + model->firstmodelsurface + i;
2766 for (j = 0;j < MAXLIGHTMAPS;j++)
2767 stylecounts[surface->lightmapinfo->styles[j]]++;
2770 model->brushq1.light_styles = 0;
2771 for (i = 0;i < 255;i++)
2775 remapstyles[i] = model->brushq1.light_styles++;
2776 totalcount += stylecounts[i] + 1;
2781 model->brushq1.light_style = (qbyte *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(qbyte));
2782 model->brushq1.light_stylevalue = (int *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(int));
2783 model->brushq1.light_styleupdatechains = (msurface_t ***)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(msurface_t **));
2784 model->brushq1.light_styleupdatechainsbuffer = (msurface_t **)Mem_Alloc(mempool, totalcount * sizeof(msurface_t *));
2785 model->brushq1.light_styles = 0;
2786 for (i = 0;i < 255;i++)
2788 model->brushq1.light_style[model->brushq1.light_styles++] = i;
2790 for (i = 0;i < model->brushq1.light_styles;i++)
2792 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
2793 j += stylecounts[model->brushq1.light_style[i]] + 1;
2795 for (i = 0;i < model->nummodelsurfaces;i++)
2797 surface = model->data_surfaces + model->firstmodelsurface + i;
2798 for (j = 0;j < MAXLIGHTMAPS;j++)
2799 if (surface->lightmapinfo->styles[j] != 255)
2800 *model->brushq1.light_styleupdatechains[remapstyles[surface->lightmapinfo->styles[j]]]++ = surface;
2803 for (i = 0;i < model->brushq1.light_styles;i++)
2805 *model->brushq1.light_styleupdatechains[i] = NULL;
2806 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
2807 j += stylecounts[model->brushq1.light_style[i]] + 1;
2811 //Returns PVS data for a given point
2812 //(note: can return NULL)
2813 static qbyte *Mod_Q1BSP_GetPVS(model_t *model, const vec3_t p)
2816 Mod_CheckLoaded(model);
2817 node = model->brush.data_nodes;
2819 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
2820 if (((mleaf_t *)node)->clusterindex >= 0)
2821 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
2826 static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, qbyte *pvsbuffer, int pvsbytes, mnode_t *node)
2830 float d = PlaneDiff(org, node->plane);
2832 node = node->children[0];
2833 else if (d < -radius)
2834 node = node->children[1];
2837 // go down both sides
2838 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
2839 node = node->children[1];
2842 // if this leaf is in a cluster, accumulate the pvs bits
2843 if (((mleaf_t *)node)->clusterindex >= 0)
2846 qbyte *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
2847 for (i = 0;i < pvsbytes;i++)
2848 pvsbuffer[i] |= pvs[i];
2852 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
2853 //of the given point.
2854 static int Mod_Q1BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, qbyte *pvsbuffer, int pvsbufferlength)
2856 int bytes = model->brush.num_pvsclusterbytes;
2857 bytes = min(bytes, pvsbufferlength);
2858 if (r_novis.integer || !model->brush.num_pvsclusters || !Mod_Q1BSP_GetPVS(model, org))
2860 memset(pvsbuffer, 0xFF, bytes);
2863 memset(pvsbuffer, 0, bytes);
2864 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes);
2868 static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
2873 VectorSubtract(inmaxs, inmins, size);
2874 if (cmodel->brush.ismcbsp)
2877 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
2878 else if (size[2] < 48) // pick the nearest of 40 or 56
2879 hull = &cmodel->brushq1.hulls[2]; // 16x16x40
2881 hull = &cmodel->brushq1.hulls[1]; // 16x16x56
2883 else if (cmodel->brush.ishlbsp)
2886 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
2887 else if (size[0] <= 32)
2889 if (size[2] < 54) // pick the nearest of 36 or 72
2890 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
2892 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
2895 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
2900 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
2901 else if (size[0] <= 32)
2902 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
2904 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
2906 VectorCopy(inmins, outmins);
2907 VectorAdd(inmins, hull->clip_size, outmaxs);
2910 void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
2915 mempool_t *mainmempool;
2916 float dist, modelyawradius, modelradius, *vec;
2917 msurface_t *surface;
2918 int numshadowmeshtriangles;
2920 hullinfo_t hullinfo;
2922 mod->type = mod_brushq1;
2924 if (!memcmp (buffer, "MCBSPpad", 8))
2928 mod->brush.ismcbsp = true;
2929 mod->brush.ishlbsp = false;
2931 mod_base = (qbyte*)buffer;
2935 i = SB_ReadInt (&index);
2936 if (i != MCBSPVERSION)
2937 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i)", mod->name, i, MCBSPVERSION);
2940 hullinfo.numhulls = LittleLong(*(int*)index); index += 4;
2941 hullinfo.filehulls = hullinfo.numhulls;
2942 VectorClear (hullinfo.hullsizes[0][0]);
2943 VectorClear (hullinfo.hullsizes[0][1]);
2944 for (i = 1; i < hullinfo.numhulls; i++)
2946 hullinfo.hullsizes[i][0][0] = SB_ReadFloat (&index);
2947 hullinfo.hullsizes[i][0][1] = SB_ReadFloat (&index);
2948 hullinfo.hullsizes[i][0][2] = SB_ReadFloat (&index);
2949 hullinfo.hullsizes[i][1][0] = SB_ReadFloat (&index);
2950 hullinfo.hullsizes[i][1][1] = SB_ReadFloat (&index);
2951 hullinfo.hullsizes[i][1][2] = SB_ReadFloat (&index);
2955 _header.version = 0;
2956 for (i = 0; i < HEADER_LUMPS; i++)
2958 _header.lumps[i].fileofs = SB_ReadInt (&index);
2959 _header.lumps[i].filelen = SB_ReadInt (&index);
2966 header = (dheader_t *)buffer;
2968 i = LittleLong(header->version);
2969 if (i != BSPVERSION && i != 30)
2970 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i(Quake) or 30(HalfLife)", mod->name, i, BSPVERSION);
2971 mod->brush.ishlbsp = i == 30;
2972 mod->brush.ismcbsp = false;
2974 // fill in hull info
2975 VectorClear (hullinfo.hullsizes[0][0]);
2976 VectorClear (hullinfo.hullsizes[0][1]);
2977 if (mod->brush.ishlbsp)
2979 hullinfo.numhulls = 4;
2980 hullinfo.filehulls = 4;
2981 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
2982 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
2983 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
2984 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
2985 VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
2986 VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
2990 hullinfo.numhulls = 3;
2991 hullinfo.filehulls = 4;
2992 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
2993 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
2994 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
2995 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
2999 mod_base = (qbyte*)buffer;
3000 for (i = 0; i < HEADER_LUMPS; i++)
3002 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
3003 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
3007 mod->soundfromcenter = true;
3008 mod->TraceBox = Mod_Q1BSP_TraceBox;
3009 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3010 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3011 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
3012 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
3013 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
3014 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
3015 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
3016 mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
3017 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
3018 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3019 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3020 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
3022 if (loadmodel->isworldmodel)
3024 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3025 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3030 // store which lightmap format to use
3031 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3033 Mod_Q1BSP_LoadEntities(&header->lumps[LUMP_ENTITIES]);
3034 Mod_Q1BSP_LoadVertexes(&header->lumps[LUMP_VERTEXES]);
3035 Mod_Q1BSP_LoadEdges(&header->lumps[LUMP_EDGES]);
3036 Mod_Q1BSP_LoadSurfedges(&header->lumps[LUMP_SURFEDGES]);
3037 Mod_Q1BSP_LoadTextures(&header->lumps[LUMP_TEXTURES]);
3038 Mod_Q1BSP_LoadLighting(&header->lumps[LUMP_LIGHTING]);
3039 Mod_Q1BSP_LoadPlanes(&header->lumps[LUMP_PLANES]);
3040 Mod_Q1BSP_LoadTexinfo(&header->lumps[LUMP_TEXINFO]);
3041 Mod_Q1BSP_LoadFaces(&header->lumps[LUMP_FACES]);
3042 Mod_Q1BSP_LoadLeaffaces(&header->lumps[LUMP_MARKSURFACES]);
3043 Mod_Q1BSP_LoadVisibility(&header->lumps[LUMP_VISIBILITY]);
3044 // load submodels before leafs because they contain the number of vis leafs
3045 Mod_Q1BSP_LoadSubmodels(&header->lumps[LUMP_MODELS], &hullinfo);
3046 Mod_Q1BSP_LoadLeafs(&header->lumps[LUMP_LEAFS]);
3047 Mod_Q1BSP_LoadNodes(&header->lumps[LUMP_NODES]);
3048 Mod_Q1BSP_LoadClipnodes(&header->lumps[LUMP_CLIPNODES], &hullinfo);
3050 if (!mod->brushq1.lightdata)
3051 mod->brush.LightPoint = NULL;
3053 if (mod->brushq1.data_compressedpvs)
3054 Mem_Free(mod->brushq1.data_compressedpvs);
3055 mod->brushq1.data_compressedpvs = NULL;
3056 mod->brushq1.num_compressedpvs = 0;
3058 Mod_Q1BSP_MakeHull0();
3059 Mod_Q1BSP_MakePortals();
3061 mod->numframes = 2; // regular and alternate animation
3064 mainmempool = mod->mempool;
3066 Mod_Q1BSP_LoadLightList();
3068 // make a single combined shadow mesh to allow optimized shadow volume creation
3069 numshadowmeshtriangles = 0;
3070 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3072 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
3073 numshadowmeshtriangles += surface->num_triangles;
3075 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
3076 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3077 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));
3078 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
3079 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
3081 if (loadmodel->brush.numsubmodels)
3082 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
3084 if (loadmodel->isworldmodel)
3086 // clear out any stale submodels or worldmodels lying around
3087 // if we did this clear before now, an error might abort loading and
3088 // leave things in a bad state
3089 Mod_RemoveStaleWorldModels(loadmodel);
3092 // LordHavoc: to clear the fog around the original quake submodel code, I
3094 // first of all, some background info on the submodels:
3095 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
3096 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
3097 // now the weird for loop itself:
3098 // the loop functions in an odd way, on each iteration it sets up the
3099 // current 'mod' model (which despite the confusing code IS the model of
3100 // the number i), at the end of the loop it duplicates the model to become
3101 // the next submodel, and loops back to set up the new submodel.
3103 // LordHavoc: now the explanation of my sane way (which works identically):
3104 // set up the world model, then on each submodel copy from the world model
3105 // and set up the submodel with the respective model info.
3106 for (i = 0;i < mod->brush.numsubmodels;i++)
3108 // LordHavoc: this code was originally at the end of this loop, but
3109 // has been transformed to something more readable at the start here.
3114 // LordHavoc: only register submodels if it is the world
3115 // (prevents external bsp models from replacing world submodels with
3117 if (!loadmodel->isworldmodel)
3119 // duplicate the basic information
3120 sprintf(name, "*%i", i);
3121 mod = Mod_FindName(name);
3122 // copy the base model to this one
3124 // rename the clone back to its proper name
3125 strcpy(mod->name, name);
3126 // textures and memory belong to the main model
3127 mod->texturepool = NULL;
3128 mod->mempool = NULL;
3131 mod->brush.submodel = i;
3133 if (loadmodel->brush.submodels)
3134 loadmodel->brush.submodels[i] = mod;
3136 bm = &mod->brushq1.submodels[i];
3138 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
3139 for (j=1 ; j<MAX_MAP_HULLS ; j++)
3141 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
3142 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
3145 mod->firstmodelsurface = bm->firstface;
3146 mod->nummodelsurfaces = bm->numfaces;
3148 // make the model surface list (used by shadowing/lighting)
3149 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
3150 for (j = 0;j < mod->nummodelsurfaces;j++)
3151 mod->surfacelist[j] = mod->firstmodelsurface + j;
3153 // this gets altered below if sky is used
3154 mod->DrawSky = NULL;
3155 mod->Draw = R_Q1BSP_Draw;
3156 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
3157 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
3158 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
3159 mod->DrawLight = R_Q1BSP_DrawLight;
3162 mod->brush.GetPVS = NULL;
3163 mod->brush.FatPVS = NULL;
3164 mod->brush.BoxTouchingPVS = NULL;
3165 mod->brush.BoxTouchingLeafPVS = NULL;
3166 mod->brush.BoxTouchingVisibleLeafs = NULL;
3167 mod->brush.LightPoint = NULL;
3168 mod->brush.AmbientSoundLevelsForPoint = NULL;
3170 Mod_Q1BSP_BuildLightmapUpdateChains(loadmodel->mempool, mod);
3171 if (mod->nummodelsurfaces)
3173 // LordHavoc: calculate bmodel bounding box rather than trusting what it says
3174 mod->normalmins[0] = mod->normalmins[1] = mod->normalmins[2] = 1000000000.0f;
3175 mod->normalmaxs[0] = mod->normalmaxs[1] = mod->normalmaxs[2] = -1000000000.0f;
3178 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
3180 // we only need to have a drawsky function if it is used(usually only on world model)
3181 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
3182 mod->DrawSky = R_Q1BSP_DrawSky;
3183 // calculate bounding shapes
3184 for (k = 0, vec = (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex);k < surface->num_vertices;k++, vec += 3)
3186 if (mod->normalmins[0] > vec[0]) mod->normalmins[0] = vec[0];
3187 if (mod->normalmins[1] > vec[1]) mod->normalmins[1] = vec[1];
3188 if (mod->normalmins[2] > vec[2]) mod->normalmins[2] = vec[2];
3189 if (mod->normalmaxs[0] < vec[0]) mod->normalmaxs[0] = vec[0];
3190 if (mod->normalmaxs[1] < vec[1]) mod->normalmaxs[1] = vec[1];
3191 if (mod->normalmaxs[2] < vec[2]) mod->normalmaxs[2] = vec[2];
3192 dist = vec[0]*vec[0]+vec[1]*vec[1];
3193 if (modelyawradius < dist)
3194 modelyawradius = dist;
3195 dist += vec[2]*vec[2];
3196 if (modelradius < dist)
3200 modelyawradius = sqrt(modelyawradius);
3201 modelradius = sqrt(modelradius);
3202 mod->yawmins[0] = mod->yawmins[1] = - (mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius);
3203 mod->yawmins[2] = mod->normalmins[2];
3204 mod->yawmaxs[2] = mod->normalmaxs[2];
3205 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
3206 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
3207 mod->radius = modelradius;
3208 mod->radius2 = modelradius * modelradius;
3212 // LordHavoc: empty submodel(lacrima.bsp has such a glitch)
3213 Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
3215 //mod->brushq1.num_visleafs = bm->visleafs;
3218 Mod_Q1BSP_LoadMapBrushes();
3220 //Mod_Q1BSP_ProcessLightList();
3222 if (developer.integer)
3223 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);
3226 static void Mod_Q2BSP_LoadEntities(lump_t *l)
3230 static void Mod_Q2BSP_LoadPlanes(lump_t *l)
3237 in = (void *)(mod_base + l->fileofs);
3238 if (l->filelen % sizeof(*in))
3239 Host_Error("Mod_Q2BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
3240 count = l->filelen / sizeof(*in);
3241 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3244 loadmodel->num = count;
3246 for (i = 0;i < count;i++, in++, out++)
3252 static void Mod_Q2BSP_LoadVertices(lump_t *l)
3259 in = (void *)(mod_base + l->fileofs);
3260 if (l->filelen % sizeof(*in))
3261 Host_Error("Mod_Q2BSP_LoadVertices: funny lump size in %s",loadmodel->name);
3262 count = l->filelen / sizeof(*in);
3263 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3266 loadmodel->num = count;
3268 for (i = 0;i < count;i++, in++, out++)
3274 static void Mod_Q2BSP_LoadVisibility(lump_t *l)
3281 in = (void *)(mod_base + l->fileofs);
3282 if (l->filelen % sizeof(*in))
3283 Host_Error("Mod_Q2BSP_LoadVisibility: funny lump size in %s",loadmodel->name);
3284 count = l->filelen / sizeof(*in);
3285 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3288 loadmodel->num = count;
3290 for (i = 0;i < count;i++, in++, out++)
3296 static void Mod_Q2BSP_LoadNodes(lump_t *l)
3303 in = (void *)(mod_base + l->fileofs);
3304 if (l->filelen % sizeof(*in))
3305 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
3306 count = l->filelen / sizeof(*in);
3307 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3310 loadmodel->num = count;
3312 for (i = 0;i < count;i++, in++, out++)
3318 static void Mod_Q2BSP_LoadTexInfo(lump_t *l)
3325 in = (void *)(mod_base + l->fileofs);
3326 if (l->filelen % sizeof(*in))
3327 Host_Error("Mod_Q2BSP_LoadTexInfo: funny lump size in %s",loadmodel->name);
3328 count = l->filelen / sizeof(*in);
3329 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3332 loadmodel->num = count;
3334 for (i = 0;i < count;i++, in++, out++)
3340 static void Mod_Q2BSP_LoadFaces(lump_t *l)
3347 in = (void *)(mod_base + l->fileofs);
3348 if (l->filelen % sizeof(*in))
3349 Host_Error("Mod_Q2BSP_LoadFaces: funny lump size in %s",loadmodel->name);
3350 count = l->filelen / sizeof(*in);
3351 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3354 loadmodel->num = count;
3356 for (i = 0;i < count;i++, in++, out++)
3362 static void Mod_Q2BSP_LoadLighting(lump_t *l)
3369 in = (void *)(mod_base + l->fileofs);
3370 if (l->filelen % sizeof(*in))
3371 Host_Error("Mod_Q2BSP_LoadLighting: funny lump size in %s",loadmodel->name);
3372 count = l->filelen / sizeof(*in);
3373 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3376 loadmodel->num = count;
3378 for (i = 0;i < count;i++, in++, out++)
3384 static void Mod_Q2BSP_LoadLeafs(lump_t *l)
3391 in = (void *)(mod_base + l->fileofs);
3392 if (l->filelen % sizeof(*in))
3393 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
3394 count = l->filelen / sizeof(*in);
3395 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3398 loadmodel->num = count;
3400 for (i = 0;i < count;i++, in++, out++)
3406 static void Mod_Q2BSP_LoadLeafFaces(lump_t *l)
3413 in = (void *)(mod_base + l->fileofs);
3414 if (l->filelen % sizeof(*in))
3415 Host_Error("Mod_Q2BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
3416 count = l->filelen / sizeof(*in);
3417 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3420 loadmodel->num = count;
3422 for (i = 0;i < count;i++, in++, out++)
3428 static void Mod_Q2BSP_LoadLeafBrushes(lump_t *l)
3435 in = (void *)(mod_base + l->fileofs);
3436 if (l->filelen % sizeof(*in))
3437 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
3438 count = l->filelen / sizeof(*in);
3439 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3442 loadmodel->num = count;
3444 for (i = 0;i < count;i++, in++, out++)
3450 static void Mod_Q2BSP_LoadEdges(lump_t *l)
3457 in = (void *)(mod_base + l->fileofs);
3458 if (l->filelen % sizeof(*in))
3459 Host_Error("Mod_Q2BSP_LoadEdges: funny lump size in %s",loadmodel->name);
3460 count = l->filelen / sizeof(*in);
3461 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3464 loadmodel->num = count;
3466 for (i = 0;i < count;i++, in++, out++)
3472 static void Mod_Q2BSP_LoadSurfEdges(lump_t *l)
3479 in = (void *)(mod_base + l->fileofs);
3480 if (l->filelen % sizeof(*in))
3481 Host_Error("Mod_Q2BSP_LoadSurfEdges: funny lump size in %s",loadmodel->name);
3482 count = l->filelen / sizeof(*in);
3483 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3486 loadmodel->num = count;
3488 for (i = 0;i < count;i++, in++, out++)
3494 static void Mod_Q2BSP_LoadBrushes(lump_t *l)
3501 in = (void *)(mod_base + l->fileofs);
3502 if (l->filelen % sizeof(*in))
3503 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
3504 count = l->filelen / sizeof(*in);
3505 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3508 loadmodel->num = count;
3510 for (i = 0;i < count;i++, in++, out++)
3516 static void Mod_Q2BSP_LoadBrushSides(lump_t *l)
3523 in = (void *)(mod_base + l->fileofs);
3524 if (l->filelen % sizeof(*in))
3525 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
3526 count = l->filelen / sizeof(*in);
3527 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3530 loadmodel->num = count;
3532 for (i = 0;i < count;i++, in++, out++)
3538 static void Mod_Q2BSP_LoadAreas(lump_t *l)
3545 in = (void *)(mod_base + l->fileofs);
3546 if (l->filelen % sizeof(*in))
3547 Host_Error("Mod_Q2BSP_LoadAreas: funny lump size in %s",loadmodel->name);
3548 count = l->filelen / sizeof(*in);
3549 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3552 loadmodel->num = count;
3554 for (i = 0;i < count;i++, in++, out++)
3560 static void Mod_Q2BSP_LoadAreaPortals(lump_t *l)
3567 in = (void *)(mod_base + l->fileofs);
3568 if (l->filelen % sizeof(*in))
3569 Host_Error("Mod_Q2BSP_LoadAreaPortals: funny lump size in %s",loadmodel->name);
3570 count = l->filelen / sizeof(*in);
3571 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3574 loadmodel->num = count;
3576 for (i = 0;i < count;i++, in++, out++)
3582 static void Mod_Q2BSP_LoadModels(lump_t *l)
3589 in = (void *)(mod_base + l->fileofs);
3590 if (l->filelen % sizeof(*in))
3591 Host_Error("Mod_Q2BSP_LoadModels: funny lump size in %s",loadmodel->name);
3592 count = l->filelen / sizeof(*in);
3593 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3596 loadmodel->num = count;
3598 for (i = 0;i < count;i++, in++, out++)
3604 void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
3607 q2dheader_t *header;
3609 Host_Error("Mod_Q2BSP_Load: not yet implemented\n");
3611 mod->type = mod_brushq2;
3613 header = (q2dheader_t *)buffer;
3615 i = LittleLong(header->version);
3616 if (i != Q2BSPVERSION)
3617 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
3618 mod->brush.ishlbsp = false;
3619 mod->brush.ismcbsp = false;
3620 if (loadmodel->isworldmodel)
3622 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3623 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3626 mod_base = (qbyte *)header;
3628 // swap all the lumps
3629 for (i = 0;i < (int) sizeof(*header) / 4;i++)
3630 ((int *)header)[i] = LittleLong(((int *)header)[i]);
3632 // store which lightmap format to use
3633 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3635 Mod_Q2BSP_LoadEntities(&header->lumps[Q2LUMP_ENTITIES]);
3636 Mod_Q2BSP_LoadPlanes(&header->lumps[Q2LUMP_PLANES]);
3637 Mod_Q2BSP_LoadVertices(&header->lumps[Q2LUMP_VERTEXES]);
3638 Mod_Q2BSP_LoadVisibility(&header->lumps[Q2LUMP_VISIBILITY]);
3639 Mod_Q2BSP_LoadNodes(&header->lumps[Q2LUMP_NODES]);
3640 Mod_Q2BSP_LoadTexInfo(&header->lumps[Q2LUMP_TEXINFO]);
3641 Mod_Q2BSP_LoadFaces(&header->lumps[Q2LUMP_FACES]);
3642 Mod_Q2BSP_LoadLighting(&header->lumps[Q2LUMP_LIGHTING]);
3643 Mod_Q2BSP_LoadLeafs(&header->lumps[Q2LUMP_LEAFS]);
3644 Mod_Q2BSP_LoadLeafFaces(&header->lumps[Q2LUMP_LEAFFACES]);
3645 Mod_Q2BSP_LoadLeafBrushes(&header->lumps[Q2LUMP_LEAFBRUSHES]);
3646 Mod_Q2BSP_LoadEdges(&header->lumps[Q2LUMP_EDGES]);
3647 Mod_Q2BSP_LoadSurfEdges(&header->lumps[Q2LUMP_SURFEDGES]);
3648 Mod_Q2BSP_LoadBrushes(&header->lumps[Q2LUMP_BRUSHES]);
3649 Mod_Q2BSP_LoadBrushSides(&header->lumps[Q2LUMP_BRUSHSIDES]);
3650 Mod_Q2BSP_LoadAreas(&header->lumps[Q2LUMP_AREAS]);
3651 Mod_Q2BSP_LoadAreaPortals(&header->lumps[Q2LUMP_AREAPORTALS]);
3652 // LordHavoc: must go last because this makes the submodels
3653 Mod_Q2BSP_LoadModels(&header->lumps[Q2LUMP_MODELS]);
3656 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents);
3657 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents);
3659 static void Mod_Q3BSP_LoadEntities(lump_t *l)
3662 char key[128], value[4096];
3664 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
3665 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
3666 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
3669 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
3670 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
3671 data = loadmodel->brush.entities;
3672 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
3673 if (data && COM_ParseToken(&data, false) && com_token[0] == '{')
3677 if (!COM_ParseToken(&data, false))
3679 if (com_token[0] == '}')
3680 break; // end of worldspawn
3681 if (com_token[0] == '_')
3682 strcpy(key, com_token + 1);
3684 strcpy(key, com_token);
3685 while (key[strlen(key)-1] == ' ') // remove trailing spaces
3686 key[strlen(key)-1] = 0;
3687 if (!COM_ParseToken(&data, false))
3689 strcpy(value, com_token);
3690 if (!strcmp("gridsize", key))
3692 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
3693 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
3699 static void Mod_Q3BSP_LoadTextures(lump_t *l)
3708 int flags, flags2, numparameters, passnumber;
3709 char shadername[Q3PATHLENGTH];
3710 char sky[Q3PATHLENGTH];
3711 char firstpasstexturename[Q3PATHLENGTH];
3712 char parameter[4][Q3PATHLENGTH];
3714 in = (q3dtexture_t *)(mod_base + l->fileofs);
3715 if (l->filelen % sizeof(*in))
3716 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
3717 count = l->filelen / sizeof(*in);
3718 out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3720 loadmodel->data_textures = out;
3721 loadmodel->num_textures = count;
3723 for (i = 0;i < count;i++, in++, out++)
3725 strlcpy (out->name, in->name, sizeof (out->name));
3726 out->surfaceflags = LittleLong(in->surfaceflags);
3727 out->supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in->contents));
3728 out->surfaceparms = -1;
3731 // do a quick parse of shader files to get surfaceparms
3732 if ((search = FS_Search("scripts/*.shader", true, false)))
3734 for (i = 0;i < search->numfilenames;i++)
3736 if ((f = (char *)FS_LoadFile(search->filenames[i], tempmempool, false)))
3739 while (COM_ParseToken(&text, false))
3741 strlcpy (shadername, com_token, sizeof (shadername));
3746 firstpasstexturename[0] = 0;
3747 if (COM_ParseToken(&text, false) && !strcasecmp(com_token, "{"))
3749 while (COM_ParseToken(&text, false))
3751 if (!strcasecmp(com_token, "}"))
3753 else if (!strcasecmp(com_token, "{"))
3755 while (COM_ParseToken(&text, false))
3757 if (!strcasecmp(com_token, "}"))
3759 if (!strcasecmp(com_token, "\n"))
3762 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
3766 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
3767 numparameters = j + 1;
3769 if (!COM_ParseToken(&text, true))
3772 if (developer.integer >= 2)
3774 Con_Printf("%s %i: ", shadername, passnumber);
3775 for (j = 0;j < numparameters;j++)
3776 Con_Printf(" %s", parameter[j]);
3779 if (passnumber == 0 && numparameters >= 1)
3781 if (!strcasecmp(parameter[0], "blendfunc") && (flags & Q3SURFACEPARM_TRANS))
3783 if (numparameters == 2 && !strcasecmp(parameter[1], "add"))
3784 flags2 |= Q3TEXTUREFLAG_ADDITIVE;
3785 else if (numparameters == 3 && !strcasecmp(parameter[1], "gl_one") && !strcasecmp(parameter[2], "gl_one"))
3786 flags2 |= Q3TEXTUREFLAG_ADDITIVE;
3787 else if (numparameters == 3 && !strcasecmp(parameter[1], "gl_src_alpha") && !strcasecmp(parameter[2], "gl_one"))
3788 flags2 |= Q3TEXTUREFLAG_ADDITIVE;
3790 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
3791 strlcpy(firstpasstexturename, parameter[1], sizeof(firstpasstexturename));
3792 else if (numparameters >= 3 && !strcasecmp(parameter[0], "animmap"))
3793 strlcpy(firstpasstexturename, parameter[2], sizeof(firstpasstexturename));
3794 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
3795 flags2 |= Q3TEXTUREFLAG_ALPHATEST;
3797 // break out a level if it was }
3798 if (!strcasecmp(com_token, "}"))
3805 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
3809 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
3810 numparameters = j + 1;
3812 if (!COM_ParseToken(&text, true))
3815 if (i == 0 && !strcasecmp(com_token, "}"))
3817 if (developer.integer >= 2)
3819 Con_Printf("%s: ", shadername);
3820 for (j = 0;j < numparameters;j++)
3821 Con_Printf(" %s", parameter[j]);
3824 if (numparameters < 1)
3826 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
3828 if (!strcasecmp(parameter[1], "alphashadow"))
3829 flags |= Q3SURFACEPARM_ALPHASHADOW;
3830 else if (!strcasecmp(parameter[1], "areaportal"))
3831 flags |= Q3SURFACEPARM_AREAPORTAL;
3832 else if (!strcasecmp(parameter[1], "clusterportal"))
3833 flags |= Q3SURFACEPARM_CLUSTERPORTAL;
3834 else if (!strcasecmp(parameter[1], "detail"))
3835 flags |= Q3SURFACEPARM_DETAIL;
3836 else if (!strcasecmp(parameter[1], "donotenter"))
3837 flags |= Q3SURFACEPARM_DONOTENTER;
3838 else if (!strcasecmp(parameter[1], "fog"))
3839 flags |= Q3SURFACEPARM_FOG;
3840 else if (!strcasecmp(parameter[1], "lava"))
3841 flags |= Q3SURFACEPARM_LAVA;
3842 else if (!strcasecmp(parameter[1], "lightfilter"))
3843 flags |= Q3SURFACEPARM_LIGHTFILTER;
3844 else if (!strcasecmp(parameter[1], "metalsteps"))
3845 flags |= Q3SURFACEPARM_METALSTEPS;
3846 else if (!strcasecmp(parameter[1], "nodamage"))
3847 flags |= Q3SURFACEPARM_NODAMAGE;
3848 else if (!strcasecmp(parameter[1], "nodlight"))
3849 flags |= Q3SURFACEPARM_NODLIGHT;
3850 else if (!strcasecmp(parameter[1], "nodraw"))
3851 flags |= Q3SURFACEPARM_NODRAW;
3852 else if (!strcasecmp(parameter[1], "nodrop"))
3853 flags |= Q3SURFACEPARM_NODROP;
3854 else if (!strcasecmp(parameter[1], "noimpact"))
3855 flags |= Q3SURFACEPARM_NOIMPACT;
3856 else if (!strcasecmp(parameter[1], "nolightmap"))
3857 flags |= Q3SURFACEPARM_NOLIGHTMAP;
3858 else if (!strcasecmp(parameter[1], "nomarks"))
3859 flags |= Q3SURFACEPARM_NOMARKS;
3860 else if (!strcasecmp(parameter[1], "nomipmaps"))
3861 flags |= Q3SURFACEPARM_NOMIPMAPS;
3862 else if (!strcasecmp(parameter[1], "nonsolid"))
3863 flags |= Q3SURFACEPARM_NONSOLID;
3864 else if (!strcasecmp(parameter[1], "origin"))
3865 flags |= Q3SURFACEPARM_ORIGIN;
3866 else if (!strcasecmp(parameter[1], "playerclip"))
3867 flags |= Q3SURFACEPARM_PLAYERCLIP;
3868 else if (!strcasecmp(parameter[1], "sky"))
3869 flags |= Q3SURFACEPARM_SKY;
3870 else if (!strcasecmp(parameter[1], "slick"))
3871 flags |= Q3SURFACEPARM_SLICK;
3872 else if (!strcasecmp(parameter[1], "slime"))
3873 flags |= Q3SURFACEPARM_SLIME;
3874 else if (!strcasecmp(parameter[1], "structural"))
3875 flags |= Q3SURFACEPARM_STRUCTURAL;
3876 else if (!strcasecmp(parameter[1], "trans"))
3877 flags |= Q3SURFACEPARM_TRANS;
3878 else if (!strcasecmp(parameter[1], "water"))
3879 flags |= Q3SURFACEPARM_WATER;
3880 else if (!strcasecmp(parameter[1], "pointlight"))
3881 flags |= Q3SURFACEPARM_POINTLIGHT;
3883 Con_Printf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[i], parameter[1]);
3885 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
3886 strlcpy(sky, parameter[1], sizeof(sky));
3887 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
3889 if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
3890 strlcpy(sky, parameter[1], sizeof(sky));
3892 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
3894 if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
3895 flags2 |= Q3TEXTUREFLAG_TWOSIDED;
3897 else if (!strcasecmp(parameter[0], "nomipmaps"))
3898 flags2 |= Q3TEXTUREFLAG_NOMIPMAPS;
3899 else if (!strcasecmp(parameter[0], "nopicmip"))
3900 flags2 |= Q3TEXTUREFLAG_NOPICMIP;
3901 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
3903 if (!strcasecmp(parameter[1], "autosprite") && numparameters == 2)
3904 flags2 |= Q3TEXTUREFLAG_AUTOSPRITE;
3905 if (!strcasecmp(parameter[1], "autosprite2") && numparameters == 2)
3906 flags2 |= Q3TEXTUREFLAG_AUTOSPRITE2;
3909 // add shader to list (shadername and flags)
3910 // actually here we just poke into the texture settings
3911 for (j = 0, out = loadmodel->data_textures;j < loadmodel->num_textures;j++, out++)
3913 if (!strcasecmp(out->name, shadername))
3915 out->surfaceparms = flags;
3916 out->textureflags = flags2;
3917 out->basematerialflags = 0;
3918 if (out->surfaceparms & Q3SURFACEPARM_NODRAW)
3919 out->basematerialflags |= MATERIALFLAG_NODRAW;
3920 else if (out->surfaceparms & Q3SURFACEPARM_SKY)
3921 out->basematerialflags |= MATERIALFLAG_SKY;
3922 else if (out->surfaceparms & Q3SURFACEPARM_LAVA)
3923 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_FULLBRIGHT;
3924 else if (out->surfaceparms & Q3SURFACEPARM_SLIME)
3925 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_WATERALPHA;
3926 else if (out->surfaceparms & Q3SURFACEPARM_WATER)
3927 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_WATERALPHA;
3929 out->basematerialflags |= MATERIALFLAG_WALL;
3930 if (out->textureflags & Q3TEXTUREFLAG_ALPHATEST)
3932 // FIXME: support alpha test?
3933 out->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT;
3935 else if (out->surfaceparms & Q3SURFACEPARM_TRANS)
3937 if (out->textureflags & Q3TEXTUREFLAG_ADDITIVE)
3938 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_TRANSPARENT;
3940 out->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_TRANSPARENT;
3942 strlcpy(out->firstpasstexturename, firstpasstexturename, sizeof(out->firstpasstexturename));
3943 if ((flags & Q3SURFACEPARM_SKY) && sky[0])
3945 // quake3 seems to append a _ to the skybox name, so this must do so as well
3946 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", sky);
3953 Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[i], com_token);
3964 for (j = 0, out = loadmodel->data_textures;j < loadmodel->num_textures;j++, out++)
3966 if (out->surfaceparms == -1)
3969 Con_DPrintf("%s: No shader found for texture \"%s\"\n", loadmodel->name, out->name);
3970 out->surfaceparms = 0;
3971 if (out->surfaceflags & Q3SURFACEFLAG_NODRAW)
3972 out->basematerialflags |= MATERIALFLAG_NODRAW;
3973 else if (out->surfaceflags & Q3SURFACEFLAG_SKY)
3974 out->basematerialflags |= MATERIALFLAG_SKY;
3976 out->basematerialflags |= MATERIALFLAG_WALL;
3977 // these are defaults
3978 //if (!strncmp(out->name, "textures/skies/", 15))
3979 // out->surfaceparms |= Q3SURFACEPARM_SKY;
3980 //if (!strcmp(out->name, "caulk") || !strcmp(out->name, "common/caulk") || !strcmp(out->name, "textures/common/caulk")
3981 // || !strcmp(out->name, "nodraw") || !strcmp(out->name, "common/nodraw") || !strcmp(out->name, "textures/common/nodraw"))
3982 // out->surfaceparms |= Q3SURFACEPARM_NODRAW;
3983 //if (R_TextureHasAlpha(out->skin.base))
3984 // out->surfaceparms |= Q3SURFACEPARM_TRANS;
3986 if (!Mod_LoadSkinFrame(&out->skin, out->name, (((out->textureflags & Q3TEXTUREFLAG_NOMIPMAPS) || (out->surfaceparms & Q3SURFACEPARM_NOMIPMAPS)) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | (out->textureflags & Q3TEXTUREFLAG_NOPICMIP ? 0 : TEXF_PICMIP), false, true))
3987 if (!Mod_LoadSkinFrame(&out->skin, out->firstpasstexturename, (((out->textureflags & Q3TEXTUREFLAG_NOMIPMAPS) || (out->surfaceparms & Q3SURFACEPARM_NOMIPMAPS)) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | (out->textureflags & Q3TEXTUREFLAG_NOPICMIP ? 0 : TEXF_PICMIP), false, true))
3988 if (cls.state != ca_dedicated)
3989 Con_Printf("%s: texture loading for shader \"%s\" failed (first layer \"%s\" not found either)\n", loadmodel->name, out->name, out->firstpasstexturename);
3991 out->currentframe = out;
3994 Con_DPrintf("%s: %i textures missing shaders\n", loadmodel->name, c);
3997 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
4003 in = (q3dplane_t *)(mod_base + l->fileofs);
4004 if (l->filelen % sizeof(*in))
4005 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
4006 count = l->filelen / sizeof(*in);
4007 out = (mplane_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4009 loadmodel->brush.data_planes = out;
4010 loadmodel->brush.num_planes = count;
4012 for (i = 0;i < count;i++, in++, out++)
4014 out->normal[0] = LittleFloat(in->normal[0]);
4015 out->normal[1] = LittleFloat(in->normal[1]);
4016 out->normal[2] = LittleFloat(in->normal[2]);
4017 out->dist = LittleFloat(in->dist);
4022 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
4025 q3mbrushside_t *out;
4028 in = (q3dbrushside_t *)(mod_base + l->fileofs);
4029 if (l->filelen % sizeof(*in))
4030 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4031 count = l->filelen / sizeof(*in);
4032 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4034 loadmodel->brush.data_brushsides = out;
4035 loadmodel->brush.num_brushsides = count;
4037 for (i = 0;i < count;i++, in++, out++)
4039 n = LittleLong(in->planeindex);
4040 if (n < 0 || n >= loadmodel->brush.num_planes)
4041 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)\n", n, loadmodel->brush.num_planes);
4042 out->plane = loadmodel->brush.data_planes + n;
4043 n = LittleLong(in->textureindex);
4044 if (n < 0 || n >= loadmodel->num_textures)
4045 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)\n", n, loadmodel->num_textures);
4046 out->texture = loadmodel->data_textures + n;
4050 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
4054 int i, j, n, c, count, maxplanes;
4057 in = (q3dbrush_t *)(mod_base + l->fileofs);
4058 if (l->filelen % sizeof(*in))
4059 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4060 count = l->filelen / sizeof(*in);
4061 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4063 loadmodel->brush.data_brushes = out;
4064 loadmodel->brush.num_brushes = count;
4069 for (i = 0;i < count;i++, in++, out++)
4071 n = LittleLong(in->firstbrushside);
4072 c = LittleLong(in->numbrushsides);
4073 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
4074 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)\n", n, n + c, loadmodel->brush.num_brushsides);
4075 out->firstbrushside = loadmodel->brush.data_brushsides + n;
4076 out->numbrushsides = c;
4077 n = LittleLong(in->textureindex);
4078 if (n < 0 || n >= loadmodel->num_textures)
4079 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)\n", n, loadmodel->num_textures);
4080 out->texture = loadmodel->data_textures + n;
4082 // make a list of mplane_t structs to construct a colbrush from
4083 if (maxplanes < out->numbrushsides)
4085 maxplanes = out->numbrushsides;
4088 planes = (mplane_t *)Mem_Alloc(tempmempool, sizeof(mplane_t) * maxplanes);
4090 for (j = 0;j < out->numbrushsides;j++)
4092 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4093 planes[j].dist = out->firstbrushside[j].plane->dist;
4095 // make the colbrush from the planes
4096 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents);
4102 static void Mod_Q3BSP_LoadEffects(lump_t *l)
4108 in = (q3deffect_t *)(mod_base + l->fileofs);
4109 if (l->filelen % sizeof(*in))
4110 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
4111 count = l->filelen / sizeof(*in);
4112 out = (q3deffect_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4114 loadmodel->brushq3.data_effects = out;
4115 loadmodel->brushq3.num_effects = count;
4117 for (i = 0;i < count;i++, in++, out++)
4119 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
4120 n = LittleLong(in->brushindex);
4121 if (n >= loadmodel->brush.num_brushes)
4123 Con_Printf("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes), setting to -1\n", n, loadmodel->brush.num_brushes);
4126 out->brushindex = n;
4127 out->unknown = LittleLong(in->unknown);
4131 static void Mod_Q3BSP_LoadVertices(lump_t *l)
4136 in = (q3dvertex_t *)(mod_base + l->fileofs);
4137 if (l->filelen % sizeof(*in))
4138 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
4139 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
4140 loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 2 + 2 + 4)));
4141 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_vertex3f + count * 3;
4142 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
4143 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
4145 for (i = 0;i < count;i++, in++)
4147 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
4148 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
4149 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
4150 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
4151 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
4152 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
4153 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
4154 // svector/tvector are calculated later in face loading
4155 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
4156 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
4157 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
4158 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
4162 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
4168 in = (int *)(mod_base + l->fileofs);
4169 if (l->filelen % sizeof(int[3]))
4170 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
4171 count = l->filelen / sizeof(*in);
4172 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4174 loadmodel->brushq3.num_triangles = count / 3;
4175 loadmodel->brushq3.data_element3i = out;
4177 for (i = 0;i < count;i++, in++, out++)
4179 *out = LittleLong(*in);
4180 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
4182 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
4188 static void Mod_Q3BSP_LoadLightmaps(lump_t *l)
4196 in = (q3dlightmap_t *)(mod_base + l->fileofs);
4197 if (l->filelen % sizeof(*in))
4198 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
4199 count = l->filelen / sizeof(*in);
4200 out = (rtexture_t **)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4202 loadmodel->brushq3.data_lightmaps = out;
4203 loadmodel->brushq3.num_lightmaps = count;
4205 for (i = 0;i < count;i++, in++, out++)
4206 *out = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", i), 128, 128, in->rgb, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
4209 static void Mod_Q3BSP_LoadFaces(lump_t *l)
4211 q3dface_t *in, *oldin;
4212 msurface_t *out, *oldout;
4213 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;
4214 //int *originalelement3i;
4215 //int *originalneighbor3i;
4216 float *originalvertex3f;
4217 //float *originalsvector3f;
4218 //float *originaltvector3f;
4219 //float *originalnormal3f;
4220 float *originalcolor4f;
4221 float *originaltexcoordtexture2f;
4222 float *originaltexcoordlightmap2f;
4224 surfmesh_t *mesh, *tempmeshlist[1024];
4226 in = (q3dface_t *)(mod_base + l->fileofs);
4227 if (l->filelen % sizeof(*in))
4228 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
4229 count = l->filelen / sizeof(*in);
4230 out = (msurface_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4232 loadmodel->data_surfaces = out;
4233 loadmodel->num_surfaces = count;
4236 for (meshnum = 0;i < count;meshnum++)
4243 for (;i < count;i++, in++, out++)
4245 // check face type first
4246 type = LittleLong(in->type);
4247 if (type != Q3FACETYPE_POLYGON
4248 && type != Q3FACETYPE_PATCH
4249 && type != Q3FACETYPE_MESH
4250 && type != Q3FACETYPE_FLARE)
4252 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
4256 n = LittleLong(in->textureindex);
4257 if (n < 0 || n >= loadmodel->num_textures)
4259 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
4262 out->texture = loadmodel->data_textures + n;
4263 n = LittleLong(in->effectindex);
4264 if (n < -1 || n >= loadmodel->brushq3.num_effects)
4266 if (developer.integer >= 2)
4267 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
4273 out->effect = loadmodel->brushq3.data_effects + n;
4274 n = LittleLong(in->lightmapindex);
4275 if (n >= loadmodel->brushq3.num_lightmaps)
4277 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_lightmaps);
4283 out->lightmaptexture = NULL;
4285 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n];
4287 firstvertex = LittleLong(in->firstvertex);
4288 numvertices = LittleLong(in->numvertices);
4289 firstelement = LittleLong(in->firstelement);
4290 numtriangles = LittleLong(in->numelements) / 3;
4291 if (numtriangles * 3 != LittleLong(in->numelements))
4293 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));
4296 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
4298 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);
4301 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
4303 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);
4308 case Q3FACETYPE_POLYGON:
4309 case Q3FACETYPE_MESH:
4310 // no processing necessary
4312 case Q3FACETYPE_PATCH:
4313 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4314 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4315 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))
4317 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
4320 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4321 // convert patch to Q3FACETYPE_MESH
4322 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4323 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4324 // bound to user settings
4325 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4326 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4327 // bound to sanity settings
4328 xtess = bound(1, xtess, 1024);
4329 ytess = bound(1, ytess, 1024);
4330 // bound to user limit on vertices
4331 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4338 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4339 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4340 numvertices = finalwidth * finalheight;
4341 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4343 case Q3FACETYPE_FLARE:
4344 if (developer.integer >= 2)
4345 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
4349 out->num_vertices = numvertices;
4350 out->num_triangles = numtriangles;
4351 if (meshvertices + out->num_vertices > 65536)
4353 meshvertices += out->num_vertices;
4354 meshtriangles += out->num_triangles;
4360 mesh = tempmeshlist[meshnum] = Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true, false);
4363 for (;i < count && meshvertices + out->num_vertices <= mesh->num_vertices;i++, in++, out++)
4365 if (out->num_vertices < 3 || out->num_triangles < 1)
4368 type = LittleLong(in->type);
4369 firstvertex = LittleLong(in->firstvertex);
4370 firstelement = LittleLong(in->firstelement);
4371 out->groupmesh = mesh;
4372 out->num_firstvertex = meshvertices;
4373 out->num_firsttriangle = meshtriangles;
4376 case Q3FACETYPE_POLYGON:
4377 case Q3FACETYPE_MESH:
4378 // no processing necessary
4379 for (j = 0;j < out->num_vertices;j++)
4381 (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
4382 (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
4383 (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
4384 (out->groupmesh->data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
4385 (out->groupmesh->data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
4386 (out->groupmesh->data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
4387 (out->groupmesh->data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
4388 (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
4389 (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
4390 (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
4391 (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
4393 for (j = 0;j < out->num_triangles*3;j++)
4394 (out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
4396 case Q3FACETYPE_PATCH:
4397 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4398 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4399 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4400 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
4401 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
4402 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
4403 // convert patch to Q3FACETYPE_MESH
4404 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4405 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4406 // bound to user settings
4407 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4408 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4409 // bound to sanity settings
4410 xtess = bound(1, xtess, 1024);
4411 ytess = bound(1, ytess, 1024);
4412 // bound to user limit on vertices
4413 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4420 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4421 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4422 finalvertices = finalwidth * finalheight;
4423 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4424 type = Q3FACETYPE_MESH;
4425 // generate geometry
4426 // (note: normals are skipped because they get recalculated)
4427 Q3PatchTesselateFloat(3, sizeof(float[3]), (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4428 Q3PatchTesselateFloat(2, sizeof(float[2]), (out->groupmesh->data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
4429 Q3PatchTesselateFloat(2, sizeof(float[2]), (out->groupmesh->data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
4430 Q3PatchTesselateFloat(4, sizeof(float[4]), (out->groupmesh->data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
4431 Q3PatchTriangleElements((out->groupmesh->data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
4432 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);
4433 if (developer.integer >= 2)
4435 if (out->num_triangles < finaltriangles)
4436 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);
4438 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);
4440 // q3map does not put in collision brushes for curves... ugh
4441 // build the lower quality collision geometry
4442 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4443 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4444 // bound to user settings
4445 xtess = bound(r_subdivisions_collision_mintess.integer, xtess, r_subdivisions_collision_maxtess.integer);
4446 ytess = bound(r_subdivisions_collision_mintess.integer, ytess, r_subdivisions_collision_maxtess.integer);
4447 // bound to sanity settings
4448 xtess = bound(1, xtess, 1024);
4449 ytess = bound(1, ytess, 1024);
4450 // bound to user limit on vertices
4451 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_collision_maxvertices.integer, 262144))
4458 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4459 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4460 finalvertices = finalwidth * finalheight;
4461 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4463 out->data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
4464 out->data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
4465 out->num_collisionvertices = finalvertices;
4466 out->num_collisiontriangles = finaltriangles;
4467 Q3PatchTesselateFloat(3, sizeof(float[3]), out->data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4468 Q3PatchTriangleElements(out->data_collisionelement3i, finalwidth, finalheight, 0);
4470 //Mod_SnapVertices(3, out->num_vertices, (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex), 0.25);
4471 Mod_SnapVertices(3, out->num_collisionvertices, out->data_collisionvertex3f, 1);
4473 oldnumtriangles = out->num_triangles;
4474 oldnumtriangles2 = out->num_collisiontriangles;
4475 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(out->num_collisiontriangles, out->data_collisionelement3i, out->data_collisionelement3i, out->data_collisionvertex3f);
4476 if (developer.integer)
4477 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);
4482 meshvertices += out->num_vertices;
4483 meshtriangles += out->num_triangles;
4484 for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
4485 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)
4487 if (invalidelements)
4489 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);
4490 for (j = 0;j < out->num_triangles * 3;j++)
4492 Con_Printf(" %i", (out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
4493 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)
4494 (out->groupmesh->data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
4498 // for per pixel lighting
4499 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);
4500 // calculate a bounding box
4501 VectorClear(out->mins);
4502 VectorClear(out->maxs);
4503 if (out->num_vertices)
4505 VectorCopy((out->groupmesh->data_vertex3f + 3 * out->num_firstvertex), out->mins);
4506 VectorCopy((out->groupmesh->data_vertex3f + 3 * out->num_firstvertex), out->maxs);
4507 for (j = 1, v = (out->groupmesh->data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
4509 out->mins[0] = min(out->mins[0], v[0]);
4510 out->maxs[0] = max(out->maxs[0], v[0]);
4511 out->mins[1] = min(out->mins[1], v[1]);
4512 out->maxs[1] = max(out->maxs[1], v[1]);
4513 out->mins[2] = min(out->mins[2], v[2]);
4514 out->maxs[2] = max(out->maxs[2], v[2]);
4516 out->mins[0] -= 1.0f;
4517 out->mins[1] -= 1.0f;
4518 out->mins[2] -= 1.0f;
4519 out->maxs[0] += 1.0f;
4520 out->maxs[1] += 1.0f;
4521 out->maxs[2] += 1.0f;
4523 // set lightmap styles for consistency with q1bsp
4524 //out->lightmapinfo->styles[0] = 0;
4525 //out->lightmapinfo->styles[1] = 255;
4526 //out->lightmapinfo->styles[2] = 255;
4527 //out->lightmapinfo->styles[3] = 255;
4531 // now store the completed list of meshes
4532 loadmodel->nummeshes = meshnum;
4533 if (loadmodel->nummeshes)
4535 loadmodel->meshlist = (surfmesh_t **)Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t *) * loadmodel->nummeshes);
4536 memcpy(loadmodel->meshlist, tempmeshlist, sizeof(surfmesh_t *) * loadmodel->nummeshes);
4539 // free the no longer needed vertex data
4540 loadmodel->brushq3.num_vertices = 0;
4541 Mem_Free(loadmodel->brushq3.data_vertex3f);
4542 loadmodel->brushq3.data_vertex3f = NULL;
4543 loadmodel->brushq3.data_texcoordtexture2f = NULL;
4544 loadmodel->brushq3.data_texcoordlightmap2f = NULL;
4545 loadmodel->brushq3.data_color4f = NULL;
4546 // free the no longer needed triangle data
4547 loadmodel->brushq3.num_triangles = 0;
4548 Mem_Free(loadmodel->brushq3.data_element3i);
4549 loadmodel->brushq3.data_element3i = NULL;
4552 static void Mod_Q3BSP_LoadModels(lump_t *l)
4556 int i, j, n, c, count;
4558 in = (q3dmodel_t *)(mod_base + l->fileofs);
4559 if (l->filelen % sizeof(*in))
4560 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
4561 count = l->filelen / sizeof(*in);
4562 out = (q3dmodel_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4564 loadmodel->brushq3.data_models = out;
4565 loadmodel->brushq3.num_models = count;
4567 for (i = 0;i < count;i++, in++, out++)
4569 for (j = 0;j < 3;j++)
4571 out->mins[j] = LittleFloat(in->mins[j]);
4572 out->maxs[j] = LittleFloat(in->maxs[j]);
4574 n = LittleLong(in->firstface);
4575 c = LittleLong(in->numfaces);
4576 if (n < 0 || n + c > loadmodel->num_surfaces)
4577 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)\n", n, n + c, loadmodel->num_surfaces);
4580 n = LittleLong(in->firstbrush);
4581 c = LittleLong(in->numbrushes);
4582 if (n < 0 || n + c > loadmodel->brush.num_brushes)
4583 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)\n", n, n + c, loadmodel->brush.num_brushes);
4584 out->firstbrush = n;
4585 out->numbrushes = c;
4589 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
4595 in = (int *)(mod_base + l->fileofs);
4596 if (l->filelen % sizeof(*in))
4597 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
4598 count = l->filelen / sizeof(*in);
4599 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4601 loadmodel->brush.data_leafbrushes = out;
4602 loadmodel->brush.num_leafbrushes = count;
4604 for (i = 0;i < count;i++, in++, out++)
4606 n = LittleLong(*in);
4607 if (n < 0 || n >= loadmodel->brush.num_brushes)
4608 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)\n", n, loadmodel->brush.num_brushes);
4613 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
4619 in = (int *)(mod_base + l->fileofs);
4620 if (l->filelen % sizeof(*in))
4621 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
4622 count = l->filelen / sizeof(*in);
4623 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4625 loadmodel->brush.data_leafsurfaces = out;
4626 loadmodel->brush.num_leafsurfaces = count;
4628 for (i = 0;i < count;i++, in++, out++)
4630 n = LittleLong(*in);
4631 if (n < 0 || n >= loadmodel->num_surfaces)
4632 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)\n", n, loadmodel->num_surfaces);
4637 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
4641 int i, j, n, c, count;
4643 in = (q3dleaf_t *)(mod_base + l->fileofs);
4644 if (l->filelen % sizeof(*in))
4645 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
4646 count = l->filelen / sizeof(*in);
4647 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4649 loadmodel->brush.data_leafs = out;
4650 loadmodel->brush.num_leafs = count;
4652 for (i = 0;i < count;i++, in++, out++)
4656 out->clusterindex = LittleLong(in->clusterindex);
4657 out->areaindex = LittleLong(in->areaindex);
4658 for (j = 0;j < 3;j++)
4660 // yes the mins/maxs are ints
4661 out->mins[j] = LittleLong(in->mins[j]) - 1;
4662 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
4664 n = LittleLong(in->firstleafface);
4665 c = LittleLong(in->numleaffaces);
4666 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
4667 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)\n", n, n + c, loadmodel->brush.num_leafsurfaces);
4668 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
4669 out->numleafsurfaces = c;
4670 n = LittleLong(in->firstleafbrush);
4671 c = LittleLong(in->numleafbrushes);
4672 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
4673 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)\n", n, n + c, loadmodel->brush.num_leafbrushes);
4674 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
4675 out->numleafbrushes = c;
4679 static void Mod_Q3BSP_LoadNodes(lump_t *l)
4685 in = (q3dnode_t *)(mod_base + l->fileofs);
4686 if (l->filelen % sizeof(*in))
4687 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
4688 count = l->filelen / sizeof(*in);
4689 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4691 loadmodel->brush.data_nodes = out;
4692 loadmodel->brush.num_nodes = count;
4694 for (i = 0;i < count;i++, in++, out++)
4697 n = LittleLong(in->planeindex);
4698 if (n < 0 || n >= loadmodel->brush.num_planes)
4699 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)\n", n, loadmodel->brush.num_planes);
4700 out->plane = loadmodel->brush.data_planes + n;
4701 for (j = 0;j < 2;j++)
4703 n = LittleLong(in->childrenindex[j]);
4706 if (n >= loadmodel->brush.num_nodes)
4707 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)\n", n, loadmodel->brush.num_nodes);
4708 out->children[j] = loadmodel->brush.data_nodes + n;
4713 if (n >= loadmodel->brush.num_leafs)
4714 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)\n", n, loadmodel->brush.num_leafs);
4715 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
4718 for (j = 0;j < 3;j++)
4720 // yes the mins/maxs are ints
4721 out->mins[j] = LittleLong(in->mins[j]) - 1;
4722 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
4726 // set the parent pointers
4727 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
4730 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
4733 q3dlightgrid_t *out;
4736 in = (q3dlightgrid_t *)(mod_base + l->fileofs);
4737 if (l->filelen % sizeof(*in))
4738 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
4739 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
4740 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
4741 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
4742 loadmodel->brushq3.num_lightgrid_imins[0] = ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
4743 loadmodel->brushq3.num_lightgrid_imins[1] = ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
4744 loadmodel->brushq3.num_lightgrid_imins[2] = ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
4745 loadmodel->brushq3.num_lightgrid_imaxs[0] = floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
4746 loadmodel->brushq3.num_lightgrid_imaxs[1] = floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
4747 loadmodel->brushq3.num_lightgrid_imaxs[2] = floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
4748 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
4749 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
4750 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
4751 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
4752 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]);
4753 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]);
4755 // if lump is empty there is nothing to load, we can deal with that in the LightPoint code
4758 if (l->filelen < count * (int)sizeof(*in))
4759 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]);
4760 if (l->filelen != count * (int)sizeof(*in))
4761 Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", count * sizeof(*in), l->filelen);
4762 out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4763 loadmodel->brushq3.data_lightgrid = out;
4764 loadmodel->brushq3.num_lightgrid = count;
4765 // no swapping or validation necessary
4766 memcpy(out, in, count * (int)sizeof(*out));
4770 static void Mod_Q3BSP_LoadPVS(lump_t *l)
4775 if (l->filelen == 0)
4778 // unvised maps often have cluster indices even without pvs, so check
4779 // leafs to find real number of clusters
4780 loadmodel->brush.num_pvsclusters = 1;
4781 for (i = 0;i < loadmodel->brush.num_leafs;i++)
4782 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
4785 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
4786 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
4787 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
4788 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
4792 in = (q3dpvs_t *)(mod_base + l->fileofs);
4794 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
4796 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
4797 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
4798 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
4799 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8\n", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
4800 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
4801 if (l->filelen < totalchains + (int)sizeof(*in))
4802 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);
4804 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
4805 memcpy(loadmodel->brush.data_pvsclusters, (qbyte *)(in + 1), totalchains);
4808 static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
4810 int i, j, k, index[3];
4811 float transformed[3], blend1, blend2, blend, yaw, pitch, sinpitch;
4812 q3dlightgrid_t *a, *s;
4813 if (!model->brushq3.num_lightgrid)
4815 ambientcolor[0] = 1;
4816 ambientcolor[1] = 1;
4817 ambientcolor[2] = 1;
4820 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
4821 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
4822 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
4823 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
4824 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
4825 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
4826 index[0] = (int)floor(transformed[0]);
4827 index[1] = (int)floor(transformed[1]);
4828 index[2] = (int)floor(transformed[2]);
4829 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
4830 // now lerp the values
4831 VectorClear(diffusenormal);
4832 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
4833 for (k = 0;k < 2;k++)
4835 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
4836 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
4838 for (j = 0;j < 2;j++)
4840 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
4841 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
4843 for (i = 0;i < 2;i++)
4845 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0])));
4846 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
4848 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
4849 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
4850 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
4851 pitch = s->diffusepitch * M_PI / 128;
4852 yaw = s->diffuseyaw * M_PI / 128;
4853 sinpitch = sin(pitch);
4854 diffusenormal[0] += blend * (cos(yaw) * sinpitch);
4855 diffusenormal[1] += blend * (sin(yaw) * sinpitch);
4856 diffusenormal[2] += blend * (cos(pitch));
4857 //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)));
4861 VectorNormalize(diffusenormal);
4862 //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]);
4865 static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t point, int markframe)
4870 // find which leaf the point is in
4872 node = node->children[DotProduct(point, node->plane->normal) < node->plane->dist];
4873 // point trace the brushes
4874 leaf = (mleaf_t *)node;
4875 for (i = 0;i < leaf->numleafbrushes;i++)
4877 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
4878 if (brush && brush->markframe != markframe && BoxesOverlap(point, point, brush->mins, brush->maxs))
4880 brush->markframe = markframe;
4881 Collision_TracePointBrushFloat(trace, point, brush);
4884 // can't do point traces on curves (they have no thickness)
4887 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)
4889 int i, startside, endside;
4890 float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
4892 msurface_t *surface;
4894 if (startfrac > trace->realfraction)
4896 // note: all line fragments past first impact fraction are ignored
4897 if (VectorCompare(start, end))
4899 // find which leaf the point is in
4901 node = node->children[DotProduct(start, node->plane->normal) < node->plane->dist];
4905 // find which nodes the line is in and recurse for them
4908 // recurse down node sides
4909 dist1 = PlaneDiff(start, node->plane);
4910 dist2 = PlaneDiff(end, node->plane);
4911 startside = dist1 < 0;
4912 endside = dist2 < 0;
4913 if (startside == endside)
4915 // most of the time the line fragment is on one side of the plane
4916 node = node->children[startside];
4920 // line crosses node plane, split the line
4921 midfrac = dist1 / (dist1 - dist2);
4922 VectorLerp(start, midfrac, end, mid);
4923 // take the near side first
4924 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
4925 if (midfrac <= trace->realfraction)
4926 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
4932 nodesegmentmins[0] = min(start[0], end[0]);
4933 nodesegmentmins[1] = min(start[1], end[1]);
4934 nodesegmentmins[2] = min(start[2], end[2]);
4935 nodesegmentmaxs[0] = max(start[0], end[0]);
4936 nodesegmentmaxs[1] = max(start[1], end[1]);
4937 nodesegmentmaxs[2] = max(start[2], end[2]);
4938 // line trace the brushes
4939 leaf = (mleaf_t *)node;
4940 for (i = 0;i < leaf->numleafbrushes;i++)
4942 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
4943 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
4945 brush->markframe = markframe;
4946 Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
4947 if (startfrac > trace->realfraction)
4951 // can't do point traces on curves (they have no thickness)
4952 if (mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
4954 // line trace the curves
4955 for (i = 0;i < leaf->numleafsurfaces;i++)
4957 surface = model->data_surfaces + leaf->firstleafsurface[i];
4958 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
4960 surface->collisionmarkframe = markframe;
4961 Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
4962 if (startfrac > trace->realfraction)
4969 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)
4973 float nodesegmentmins[3], nodesegmentmaxs[3];
4976 msurface_t *surface;
4978 // find which nodes the line is in and recurse for them
4981 // recurse down node sides
4982 int startside, endside;
4983 float dist1near, dist1far, dist2near, dist2far;
4984 BoxPlaneCornerDistances(thisbrush_start->mins, thisbrush_start->maxs, node->plane, &dist1near, &dist1far);
4985 BoxPlaneCornerDistances(thisbrush_end->mins, thisbrush_end->maxs, node->plane, &dist2near, &dist2far);
4986 startside = dist1near < 0;
4987 startside = dist1near < 0 ? (dist1far < 0 ? 1 : 2) : (dist1far < 0 ? 2 : 0);
4988 endside = dist2near < 0 ? (dist2far < 0 ? 1 : 2) : (dist2far < 0 ? 2 : 0);
4989 if (startside == 2 || endside == 2)
4991 // brushes cross plane
4992 // do not clip anything, just take both sides
4993 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
4994 node = node->children[1];
5001 node = node->children[0];
5006 //midf0 = dist1near / (dist1near - dist2near);
5007 //midf1 = dist1far / (dist1far - dist2far);
5008 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5009 node = node->children[1];
5017 //midf0 = dist1near / (dist1near - dist2near);
5018 //midf1 = dist1far / (dist1far - dist2far);
5019 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5020 node = node->children[1];
5025 node = node->children[1];
5030 if (dist1near < 0 && dist2near < 0 && dist1far < 0 && dist2far < 0){node = node->children[1];continue;}
5031 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;}
5032 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;}
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){node = node->children[1];continue;}
5035 if (dist1near < 0 && dist2near >= 0 && dist1far < 0 && dist2far >= 0){}
5036 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;}
5037 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;}
5038 if (dist1near >= 0 && dist2near < 0 && dist1far < 0 && dist2far < 0){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){}
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){Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);node = node->children[1];continue;}
5043 if (dist1near >= 0 && dist2near >= 0 && dist1far < 0 && dist2far >= 0){node = node->children[0];continue;}
5044 if (dist1near >= 0 && dist2near >= 0 && dist1far >= 0 && dist2far < 0){node = node->children[0];continue;}
5045 if (dist1near >= 0 && dist2near >= 0 && dist1far >= 0 && dist2far >= 0){node = node->children[0];continue;}
5047 if (dist2near < 0) // d1n<0 && d2n<0
5049 if (dist2near < 0) // d1n<0 && d2n<0
5051 if (dist2near < 0) // d1n<0 && d2n<0
5054 else // d1n<0 && d2n>0
5058 else // d1n<0 && d2n>0
5060 if (dist2near < 0) // d1n<0 && d2n<0
5063 else // d1n<0 && d2n>0
5068 else // d1n<0 && d2n>0
5074 if (dist2near < 0) // d1n>0 && d2n<0
5077 else // d1n>0 && d2n>0
5081 if (dist1near < 0 == dist1far < 0 == dist2near < 0 == dist2far < 0)
5083 node = node->children[startside];
5086 if (dist1near < dist2near)
5091 node = node->children[0];
5096 node = node->children[1];
5099 // dist1near < 0 && dist2far >= 0
5105 startside = dist1near < 0 ? (dist1far < 0 ? 1 : 2) : (dist1far < 0 ? 2 : 0);
5106 endside = dist2near < 0 ? (dist2far < 0 ? 1 : 2) : (dist2far < 0 ? 2 : 0);
5107 if (startside == 2 || endside == 2)
5109 // brushes cross plane
5110 // do not clip anything, just take both sides
5111 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5112 node = node->children[1];
5114 else if (startside == endside)
5115 node = node->children[startside];
5116 else if (startside == 0) // endside = 1 (start infront, end behind)
5119 else // startside == 1 endside = 0 (start behind, end infront)
5125 node = node->children[startside];
5128 // start and end brush cross plane
5134 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5135 node = node->children[1];
5136 else if (dist1near < 0 && dist1far < 0 && dist2near >= 0 && dist2far >= 0)
5137 else if (dist1near >= 0 && dist1far >= 0 && dist2near < 0 && dist2far < 0)
5138 else if (dist1near >= 0 && dist1far >= 0 && dist2near >= 0 && dist2far >= 0)
5139 node = node->children[0];
5141 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5142 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 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)
5148 else if (dist1near >= 0 && dist1far >= 0)
5151 else // mixed (lying on plane)
5155 if (dist2near < 0 && dist2far < 0)
5159 node = node->children[1];
5161 if (dist1near < 0 && dist1far < 0 && dist2near < 0 && dist2far < 0)
5162 node = node->children[0];
5163 else if (dist1near >= 0 && dist1far >= 0 && dist2near >= 0 && dist2far >= 0)
5164 node = node->children[1];
5168 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5169 node = node->children[1];
5171 sides = dist1near || dist1near < 0 | dist1far < 0 | dist2near < 0 | dist
5172 startside = dist1 < 0;
5173 endside = dist2 < 0;
5174 if (startside == endside)
5176 // most of the time the line fragment is on one side of the plane
5177 node = node->children[startside];
5181 // line crosses node plane, split the line
5182 midfrac = dist1 / (dist1 - dist2);
5183 VectorLerp(start, midfrac, end, mid);
5184 // take the near side first
5185 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5186 if (midfrac <= trace->fraction)
5187 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5195 nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
5196 nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
5197 nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
5198 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
5199 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
5200 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
5201 if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
5205 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5206 node = node->children[1];
5209 // FIXME: could be made faster by copying TraceLine code and making it use
5210 // box plane distances... (variant on the BoxOnPlaneSide code)
5213 nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
5214 nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
5215 nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
5216 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
5217 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
5218 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
5219 if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
5223 if (mod_q3bsp_debugtracebrush.integer == 2)
5225 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5226 node = node->children[1];
5229 else if (mod_q3bsp_debugtracebrush.integer == 1)
5231 // recurse down node sides
5232 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5235 // segment box crosses plane
5236 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5237 node = node->children[1];
5240 // take whichever side the segment box is on
5241 node = node->children[sides - 1];
5246 // recurse down node sides
5247 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5250 // segment box crosses plane
5251 // now check start and end brush boxes to handle a lot of 'diagonal' cases more efficiently...
5252 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, node->plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, node->plane);
5255 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5256 node = node->children[1];
5260 // take whichever side the segment box is on
5261 node = node->children[sides - 1];
5267 // FIXME: could be made faster by copying TraceLine code and making it use
5268 // box plane distances... (variant on the BoxOnPlaneSide code)
5271 nodesegmentmins[0] = max(segmentmins[0], node->mins[0]);
5272 nodesegmentmins[1] = max(segmentmins[1], node->mins[1]);
5273 nodesegmentmins[2] = max(segmentmins[2], node->mins[2]);
5274 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0]);
5275 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1]);
5276 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2]);
5277 if (nodesegmentmins[0] > nodesegmentmaxs[0] || nodesegmentmins[1] > nodesegmentmaxs[1] || nodesegmentmins[2] > nodesegmentmaxs[2])
5281 if (mod_q3bsp_debugtracebrush.integer == 2)
5283 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5284 node = node->children[1];
5286 else if (mod_q3bsp_debugtracebrush.integer == 1)
5288 // recurse down node sides
5289 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5292 // segment box crosses plane
5293 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5294 node = node->children[1];
5298 // take whichever side the segment box is on
5299 node = node->children[sides - 1];
5304 // recurse down node sides
5305 sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, node->plane);
5308 // segment box crosses plane
5309 // now check start and end brush boxes to handle a lot of 'diagonal' cases more efficiently...
5310 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, node->plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, node->plane);
5313 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5317 // take whichever side the segment box is on
5318 node = node->children[sides - 1];
5323 leaf = (mleaf_t *)node;
5324 for (i = 0;i < leaf->numleafbrushes;i++)
5326 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5327 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5329 brush->markframe = markframe;
5330 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
5333 if (mod_q3bsp_curves_collisions.integer)
5335 for (i = 0;i < leaf->numleafsurfaces;i++)
5337 surface = model->data_surfaces + leaf->firstleafsurface[i];
5338 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5340 surface->collisionmarkframe = markframe;
5341 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
5347 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)
5350 float segmentmins[3], segmentmaxs[3];
5351 colbrushf_t *thisbrush_start, *thisbrush_end;
5352 matrix4x4_t startmatrix, endmatrix;
5353 static int markframe = 0;
5354 msurface_t *surface;
5356 memset(trace, 0, sizeof(*trace));
5357 trace->fraction = 1;
5358 trace->realfraction = 1;
5359 trace->hitsupercontentsmask = hitsupercontentsmask;
5360 Matrix4x4_CreateIdentity(&startmatrix);
5361 Matrix4x4_CreateIdentity(&endmatrix);
5362 segmentmins[0] = min(boxstartmins[0], boxendmins[0]);
5363 segmentmins[1] = min(boxstartmins[1], boxendmins[1]);
5364 segmentmins[2] = min(boxstartmins[2], boxendmins[2]);
5365 segmentmaxs[0] = max(boxstartmaxs[0], boxendmaxs[0]);
5366 segmentmaxs[1] = max(boxstartmaxs[1], boxendmaxs[1]);
5367 segmentmaxs[2] = max(boxstartmaxs[2], boxendmaxs[2]);
5368 if (mod_q3bsp_optimizedtraceline.integer && VectorCompare(boxstartmins, boxstartmaxs) && VectorCompare(boxendmins, boxendmaxs))
5370 if (VectorCompare(boxstartmins, boxendmins))
5373 if (model->brush.submodel)
5375 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5376 if (brush->colbrushf)
5377 Collision_TracePointBrushFloat(trace, boxstartmins, brush->colbrushf);
5380 Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, boxstartmins, ++markframe);
5385 if (model->brush.submodel)
5387 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5388 if (brush->colbrushf)
5389 Collision_TraceLineBrushFloat(trace, boxstartmins, boxendmins, brush->colbrushf, brush->colbrushf);
5390 if (mod_q3bsp_curves_collisions.integer)
5391 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5392 if (surface->num_collisiontriangles)
5393 Collision_TraceLineTriangleMeshFloat(trace, boxstartmins, boxendmins, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
5396 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, boxstartmins, boxendmins, 0, 1, boxstartmins, boxendmins, ++markframe, segmentmins, segmentmaxs);
5401 // box trace, performed as brush trace
5402 thisbrush_start = Collision_BrushForBox(&startmatrix, boxstartmins, boxstartmaxs);
5403 thisbrush_end = Collision_BrushForBox(&endmatrix, boxendmins, boxendmaxs);
5404 if (model->brush.submodel)
5406 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5407 if (brush->colbrushf)
5408 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush->colbrushf, brush->colbrushf);
5409 if (mod_q3bsp_curves_collisions.integer)
5410 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5411 if (surface->num_collisiontriangles)
5412 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, segmentmins, segmentmaxs);
5415 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, model->brush.data_nodes, thisbrush_start, thisbrush_end, ++markframe, segmentmins, segmentmaxs);
5419 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
5421 int supercontents = 0;
5422 if (nativecontents & CONTENTSQ3_SOLID)
5423 supercontents |= SUPERCONTENTS_SOLID;
5424 if (nativecontents & CONTENTSQ3_WATER)
5425 supercontents |= SUPERCONTENTS_WATER;
5426 if (nativecontents & CONTENTSQ3_SLIME)
5427 supercontents |= SUPERCONTENTS_SLIME;
5428 if (nativecontents & CONTENTSQ3_LAVA)
5429 supercontents |= SUPERCONTENTS_LAVA;
5430 if (nativecontents & CONTENTSQ3_BODY)
5431 supercontents |= SUPERCONTENTS_BODY;
5432 if (nativecontents & CONTENTSQ3_CORPSE)
5433 supercontents |= SUPERCONTENTS_CORPSE;
5434 if (nativecontents & CONTENTSQ3_NODROP)
5435 supercontents |= SUPERCONTENTS_NODROP;
5436 if (nativecontents & CONTENTSQ3_PLAYERCLIP)
5437 supercontents |= SUPERCONTENTS_PLAYERCLIP;
5438 if (nativecontents & CONTENTSQ3_MONSTERCLIP)
5439 supercontents |= SUPERCONTENTS_MONSTERCLIP;
5440 if (nativecontents & CONTENTSQ3_DONOTENTER)
5441 supercontents |= SUPERCONTENTS_DONOTENTER;
5442 return supercontents;
5445 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
5447 int nativecontents = 0;
5448 if (supercontents & SUPERCONTENTS_SOLID)
5449 nativecontents |= CONTENTSQ3_SOLID;
5450 if (supercontents & SUPERCONTENTS_WATER)
5451 nativecontents |= CONTENTSQ3_WATER;
5452 if (supercontents & SUPERCONTENTS_SLIME)
5453 nativecontents |= CONTENTSQ3_SLIME;
5454 if (supercontents & SUPERCONTENTS_LAVA)
5455 nativecontents |= CONTENTSQ3_LAVA;
5456 if (supercontents & SUPERCONTENTS_BODY)
5457 nativecontents |= CONTENTSQ3_BODY;
5458 if (supercontents & SUPERCONTENTS_CORPSE)
5459 nativecontents |= CONTENTSQ3_CORPSE;
5460 if (supercontents & SUPERCONTENTS_NODROP)
5461 nativecontents |= CONTENTSQ3_NODROP;
5462 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
5463 nativecontents |= CONTENTSQ3_PLAYERCLIP;
5464 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
5465 nativecontents |= CONTENTSQ3_MONSTERCLIP;
5466 if (supercontents & SUPERCONTENTS_DONOTENTER)
5467 nativecontents |= CONTENTSQ3_DONOTENTER;
5468 return nativecontents;
5471 void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
5476 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
5477 node = node->children[1];
5479 numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
5480 if (loadmodel->brush.num_leafs < numleafs)
5481 loadmodel->brush.num_leafs = numleafs;
5484 void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
5486 int i, j, numshadowmeshtriangles;
5487 q3dheader_t *header;
5488 float corner[3], yawradius, modelradius;
5489 msurface_t *surface;
5491 mod->type = mod_brushq3;
5492 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
5495 header = (q3dheader_t *)buffer;
5497 i = LittleLong(header->version);
5498 if (i != Q3BSPVERSION)
5499 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
5500 mod->brush.ishlbsp = false;
5501 mod->brush.ismcbsp = false;
5502 if (loadmodel->isworldmodel)
5504 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
5505 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
5508 mod->soundfromcenter = true;
5509 mod->TraceBox = Mod_Q3BSP_TraceBox;
5510 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
5511 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
5512 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
5513 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
5514 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
5515 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
5516 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
5517 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
5518 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5519 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
5520 mod->Draw = R_Q1BSP_Draw;
5521 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
5522 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
5523 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
5524 mod->DrawLight = R_Q1BSP_DrawLight;
5526 mod_base = (qbyte *)header;
5528 // swap all the lumps
5529 header->ident = LittleLong(header->ident);
5530 header->version = LittleLong(header->version);
5531 for (i = 0;i < Q3HEADER_LUMPS;i++)
5533 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
5534 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
5537 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
5538 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
5539 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
5540 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
5541 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
5542 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
5543 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
5544 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
5545 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS]);
5546 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
5547 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
5548 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
5549 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
5550 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
5551 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
5552 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
5553 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
5554 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
5556 // the MakePortals code works fine on the q3bsp data as well
5557 Mod_Q1BSP_MakePortals();
5559 // make a single combined shadow mesh to allow optimized shadow volume creation
5560 numshadowmeshtriangles = 0;
5561 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5563 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
5564 numshadowmeshtriangles += surface->num_triangles;
5566 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
5567 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5568 if (surface->groupmesh)
5569 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));
5570 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
5571 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
5573 loadmodel->brush.num_leafs = 0;
5574 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
5576 if (loadmodel->isworldmodel)
5578 // clear out any stale submodels or worldmodels lying around
5579 // if we did this clear before now, an error might abort loading and
5580 // leave things in a bad state
5581 Mod_RemoveStaleWorldModels(loadmodel);
5585 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
5590 // LordHavoc: only register submodels if it is the world
5591 // (prevents external bsp models from replacing world submodels with
5593 if (!loadmodel->isworldmodel)
5595 // duplicate the basic information
5596 sprintf(name, "*%i", i);
5597 mod = Mod_FindName(name);
5599 strcpy(mod->name, name);
5600 // textures and memory belong to the main model
5601 mod->texturepool = NULL;
5602 mod->mempool = NULL;
5603 mod->brush.GetPVS = NULL;
5604 mod->brush.FatPVS = NULL;
5605 mod->brush.BoxTouchingPVS = NULL;
5606 mod->brush.BoxTouchingLeafPVS = NULL;
5607 mod->brush.BoxTouchingVisibleLeafs = NULL;
5608 mod->brush.LightPoint = NULL;
5609 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5611 mod->brush.submodel = i;
5613 // make the model surface list (used by shadowing/lighting)
5614 mod->firstmodelsurface = mod->brushq3.data_models[i].firstface;
5615 mod->nummodelsurfaces = mod->brushq3.data_models[i].numfaces;
5616 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
5617 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
5618 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
5619 for (j = 0;j < mod->nummodelsurfaces;j++)
5620 mod->surfacelist[j] = mod->firstmodelsurface + j;
5622 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
5623 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
5624 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
5625 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
5626 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
5627 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
5628 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
5629 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
5630 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
5631 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
5632 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
5633 mod->yawmins[2] = mod->normalmins[2];
5634 mod->yawmaxs[2] = mod->normalmaxs[2];
5635 mod->radius = modelradius;
5636 mod->radius2 = modelradius * modelradius;
5638 for (j = 0;j < mod->nummodelsurfaces;j++)
5639 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->surfaceflags & Q3SURFACEFLAG_SKY)
5641 if (j < mod->nummodelsurfaces)
5642 mod->DrawSky = R_Q1BSP_DrawSky;
5646 void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
5648 int i = LittleLong(((int *)buffer)[1]);
5649 if (i == Q3BSPVERSION)
5650 Mod_Q3BSP_Load(mod,buffer, bufferend);
5651 else if (i == Q2BSPVERSION)
5652 Mod_Q2BSP_Load(mod,buffer, bufferend);
5654 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i\n", i);
5657 void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend)
5659 Host_Error("Mod_MAP_Load: not yet implemented\n");