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", "how large water polygons should be (smaller values produce more polygons which give better warping effects)"};
30 cvar_t halflifebsp = {0, "halflifebsp", "0", "indicates the current map is hlbsp format (useful to know because of different bounding box sizes)"};
31 cvar_t mcbsp = {0, "mcbsp", "0", "indicates the current map is mcbsp format (useful to know because of different bounding box sizes)"};
32 cvar_t r_novis = {0, "r_novis", "0", "draws whole level, see also sv_cullentities_pvs 0"};
33 cvar_t r_picmipworld = {CVAR_SAVE, "r_picmipworld", "1", "whether gl_picmip shall apply to world textures too"};
34 cvar_t r_nosurftextures = {0, "r_nosurftextures", "0", "pretends there was no texture lump found in the q1bsp/hlbsp loading (useful for debugging this rare case)"};
35 cvar_t r_subdivisions_tolerance = {0, "r_subdivisions_tolerance", "4", "maximum error tolerance on curve subdivision for rendering purposes (in other words, the curves will be given as many polygons as necessary to represent curves at this quality)"};
36 cvar_t r_subdivisions_mintess = {0, "r_subdivisions_mintess", "1", "minimum number of subdivisions (values above 1 will smooth curves that don't need it)"};
37 cvar_t r_subdivisions_maxtess = {0, "r_subdivisions_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
38 cvar_t r_subdivisions_maxvertices = {0, "r_subdivisions_maxvertices", "65536", "maximum vertices allowed per subdivided curve"};
39 cvar_t r_subdivisions_collision_tolerance = {0, "r_subdivisions_collision_tolerance", "15", "maximum error tolerance on curve subdivision for collision purposes (usually a larger error tolerance than for rendering)"};
40 cvar_t r_subdivisions_collision_mintess = {0, "r_subdivisions_collision_mintess", "1", "minimum number of subdivisions (values above 1 will smooth curves that don't need it)"};
41 cvar_t r_subdivisions_collision_maxtess = {0, "r_subdivisions_collision_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
42 cvar_t r_subdivisions_collision_maxvertices = {0, "r_subdivisions_collision_maxvertices", "4225", "maximum vertices allowed per subdivided curve"};
43 cvar_t mod_q3bsp_curves_collisions = {0, "mod_q3bsp_curves_collisions", "1", "enables collisions with curves (SLOW)"};
44 cvar_t mod_q3bsp_optimizedtraceline = {0, "mod_q3bsp_optimizedtraceline", "1", "whether to use optimized traceline code for line traces (as opposed to tracebox code)"};
45 cvar_t mod_q3bsp_debugtracebrush = {0, "mod_q3bsp_debugtracebrush", "0", "selects different tracebrush bsp recursion algorithms (for debugging purposes only)"};
46 cvar_t mod_q3bsp_lightmapmergepower = {CVAR_SAVE, "mod_q3bsp_lightmapmergepower", "4", "merges the quake3 128x128 lightmap textures into larger lightmap group textures to speed up rendering, 1 = 256x256, 2 = 512x512, 3 = 1024x1024, 4 = 2048x2048, 5 = 4096x4096, ..."};
48 static texture_t mod_q1bsp_texture_solid;
49 static texture_t mod_q1bsp_texture_sky;
50 static texture_t mod_q1bsp_texture_lava;
51 static texture_t mod_q1bsp_texture_slime;
52 static texture_t mod_q1bsp_texture_water;
54 void Mod_BrushInit(void)
56 // Cvar_RegisterVariable(&r_subdivide_size);
57 Cvar_RegisterVariable(&halflifebsp);
58 Cvar_RegisterVariable(&mcbsp);
59 Cvar_RegisterVariable(&r_novis);
60 Cvar_RegisterVariable(&r_picmipworld);
61 Cvar_RegisterVariable(&r_nosurftextures);
62 Cvar_RegisterVariable(&r_subdivisions_tolerance);
63 Cvar_RegisterVariable(&r_subdivisions_mintess);
64 Cvar_RegisterVariable(&r_subdivisions_maxtess);
65 Cvar_RegisterVariable(&r_subdivisions_maxvertices);
66 Cvar_RegisterVariable(&r_subdivisions_collision_tolerance);
67 Cvar_RegisterVariable(&r_subdivisions_collision_mintess);
68 Cvar_RegisterVariable(&r_subdivisions_collision_maxtess);
69 Cvar_RegisterVariable(&r_subdivisions_collision_maxvertices);
70 Cvar_RegisterVariable(&mod_q3bsp_curves_collisions);
71 Cvar_RegisterVariable(&mod_q3bsp_optimizedtraceline);
72 Cvar_RegisterVariable(&mod_q3bsp_debugtracebrush);
73 Cvar_RegisterVariable(&mod_q3bsp_lightmapmergepower);
75 memset(&mod_q1bsp_texture_solid, 0, sizeof(mod_q1bsp_texture_solid));
76 strlcpy(mod_q1bsp_texture_solid.name, "solid" , sizeof(mod_q1bsp_texture_solid.name));
77 mod_q1bsp_texture_solid.surfaceflags = 0;
78 mod_q1bsp_texture_solid.supercontents = SUPERCONTENTS_SOLID;
80 mod_q1bsp_texture_sky = mod_q1bsp_texture_solid;
81 strlcpy(mod_q1bsp_texture_sky.name, "sky", sizeof(mod_q1bsp_texture_sky.name));
82 mod_q1bsp_texture_sky.surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
83 mod_q1bsp_texture_sky.supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
85 mod_q1bsp_texture_lava = mod_q1bsp_texture_solid;
86 strlcpy(mod_q1bsp_texture_lava.name, "*lava", sizeof(mod_q1bsp_texture_lava.name));
87 mod_q1bsp_texture_lava.surfaceflags = Q3SURFACEFLAG_NOMARKS;
88 mod_q1bsp_texture_lava.supercontents = SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
90 mod_q1bsp_texture_slime = mod_q1bsp_texture_solid;
91 strlcpy(mod_q1bsp_texture_slime.name, "*slime", sizeof(mod_q1bsp_texture_slime.name));
92 mod_q1bsp_texture_slime.surfaceflags = Q3SURFACEFLAG_NOMARKS;
93 mod_q1bsp_texture_slime.supercontents = SUPERCONTENTS_SLIME;
95 mod_q1bsp_texture_water = mod_q1bsp_texture_solid;
96 strlcpy(mod_q1bsp_texture_water.name, "*water", sizeof(mod_q1bsp_texture_water.name));
97 mod_q1bsp_texture_water.surfaceflags = Q3SURFACEFLAG_NOMARKS;
98 mod_q1bsp_texture_water.supercontents = SUPERCONTENTS_WATER;
101 static mleaf_t *Mod_Q1BSP_PointInLeaf(model_t *model, const vec3_t p)
108 // LordHavoc: modified to start at first clip node,
109 // in other words: first node of the (sub)model
110 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
112 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
114 return (mleaf_t *)node;
117 static void Mod_Q1BSP_AmbientSoundLevelsForPoint(model_t *model, const vec3_t p, unsigned char *out, int outsize)
121 leaf = Mod_Q1BSP_PointInLeaf(model, p);
124 i = min(outsize, (int)sizeof(leaf->ambient_sound_level));
127 memcpy(out, leaf->ambient_sound_level, i);
133 memset(out, 0, outsize);
136 static int Mod_Q1BSP_FindBoxClusters(model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
139 int nodestackindex = 0;
140 mnode_t *node, *nodestack[1024];
141 if (!model->brush.num_pvsclusters)
143 node = model->brush.data_nodes;
149 // node - recurse down the BSP tree
150 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
154 return -1; // ERROR: NAN bounding box!
155 // box is on one side of plane, take that path
156 node = node->children[sides-1];
160 // box crosses plane, take one path and remember the other
161 if (nodestackindex < 1024)
162 nodestack[nodestackindex++] = node->children[0];
163 node = node->children[1];
169 // leaf - add clusterindex to list
170 if (numclusters < maxclusters)
171 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
175 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
179 if (nodestackindex < 1024)
180 nodestack[nodestackindex++] = node->children[0];
181 node = node->children[1];
186 // leaf - add clusterindex to list
187 if (numclusters < maxclusters)
188 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
193 // try another path we didn't take earlier
194 if (nodestackindex == 0)
196 node = nodestack[--nodestackindex];
198 // return number of clusters found (even if more than the maxclusters)
202 static int Mod_Q1BSP_BoxTouchingPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
204 int nodestackindex = 0;
205 mnode_t *node, *nodestack[1024];
206 if (!model->brush.num_pvsclusters)
208 node = model->brush.data_nodes;
214 // node - recurse down the BSP tree
215 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
219 return -1; // ERROR: NAN bounding box!
220 // box is on one side of plane, take that path
221 node = node->children[sides-1];
225 // box crosses plane, take one path and remember the other
226 if (nodestackindex < 1024)
227 nodestack[nodestackindex++] = node->children[0];
228 node = node->children[1];
234 // leaf - check cluster bit
235 int clusterindex = ((mleaf_t *)node)->clusterindex;
236 if (CHECKPVSBIT(pvs, clusterindex))
238 // it is visible, return immediately with the news
243 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
247 if (nodestackindex < 1024)
248 nodestack[nodestackindex++] = node->children[0];
249 node = node->children[1];
254 // leaf - check cluster bit
255 int clusterindex = ((mleaf_t *)node)->clusterindex;
256 if (CHECKPVSBIT(pvs, clusterindex))
258 // it is visible, return immediately with the news
264 // nothing to see here, try another path we didn't take earlier
265 if (nodestackindex == 0)
267 node = nodestack[--nodestackindex];
273 static int Mod_Q1BSP_BoxTouchingLeafPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
275 int nodestackindex = 0;
276 mnode_t *node, *nodestack[1024];
277 if (!model->brush.num_leafs)
279 node = model->brush.data_nodes;
285 // node - recurse down the BSP tree
286 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
290 return -1; // ERROR: NAN bounding box!
291 // box is on one side of plane, take that path
292 node = node->children[sides-1];
296 // box crosses plane, take one path and remember the other
297 if (nodestackindex < 1024)
298 nodestack[nodestackindex++] = node->children[0];
299 node = node->children[1];
305 // leaf - check cluster bit
306 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
307 if (CHECKPVSBIT(pvs, clusterindex))
309 // it is visible, return immediately with the news
314 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
318 if (nodestackindex < 1024)
319 nodestack[nodestackindex++] = node->children[0];
320 node = node->children[1];
325 // leaf - check cluster bit
326 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
327 if (CHECKPVSBIT(pvs, clusterindex))
329 // it is visible, return immediately with the news
335 // nothing to see here, try another path we didn't take earlier
336 if (nodestackindex == 0)
338 node = nodestack[--nodestackindex];
344 static int Mod_Q1BSP_BoxTouchingVisibleLeafs(model_t *model, const unsigned char *visibleleafs, const vec3_t mins, const vec3_t maxs)
346 int nodestackindex = 0;
347 mnode_t *node, *nodestack[1024];
348 if (!model->brush.num_leafs)
350 node = model->brush.data_nodes;
356 // node - recurse down the BSP tree
357 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
361 return -1; // ERROR: NAN bounding box!
362 // box is on one side of plane, take that path
363 node = node->children[sides-1];
367 // box crosses plane, take one path and remember the other
368 if (nodestackindex < 1024)
369 nodestack[nodestackindex++] = node->children[0];
370 node = node->children[1];
376 // leaf - check if it is visible
377 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
379 // it is visible, return immediately with the news
384 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
388 if (nodestackindex < 1024)
389 nodestack[nodestackindex++] = node->children[0];
390 node = node->children[1];
395 // leaf - check if it is visible
396 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
398 // it is visible, return immediately with the news
404 // nothing to see here, try another path we didn't take earlier
405 if (nodestackindex == 0)
407 node = nodestack[--nodestackindex];
413 typedef struct findnonsolidlocationinfo_s
421 findnonsolidlocationinfo_t;
423 static void Mod_Q1BSP_FindNonSolidLocation_r_Leaf(findnonsolidlocationinfo_t *info, mleaf_t *leaf)
425 int i, surfacenum, k, *tri, *mark;
426 float dist, f, vert[3][3], edge[3][3], facenormal[3], edgenormal[3][3], point[3];
428 for (surfacenum = 0, mark = leaf->firstleafsurface;surfacenum < leaf->numleafsurfaces;surfacenum++, mark++)
430 surface = info->model->data_surfaces + *mark;
431 if (surface->texture->supercontents & SUPERCONTENTS_SOLID)
433 for (k = 0;k < surface->num_triangles;k++)
435 tri = (info->model->surfmesh.data_element3i + 3 * surface->num_firsttriangle) + k * 3;
436 VectorCopy((info->model->surfmesh.data_vertex3f + tri[0] * 3), vert[0]);
437 VectorCopy((info->model->surfmesh.data_vertex3f + tri[1] * 3), vert[1]);
438 VectorCopy((info->model->surfmesh.data_vertex3f + tri[2] * 3), vert[2]);
439 VectorSubtract(vert[1], vert[0], edge[0]);
440 VectorSubtract(vert[2], vert[1], edge[1]);
441 CrossProduct(edge[1], edge[0], facenormal);
442 if (facenormal[0] || facenormal[1] || facenormal[2])
444 VectorNormalize(facenormal);
445 f = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
446 if (f <= info->bestdist && f >= -info->bestdist)
448 VectorSubtract(vert[0], vert[2], edge[2]);
449 VectorNormalize(edge[0]);
450 VectorNormalize(edge[1]);
451 VectorNormalize(edge[2]);
452 CrossProduct(facenormal, edge[0], edgenormal[0]);
453 CrossProduct(facenormal, edge[1], edgenormal[1]);
454 CrossProduct(facenormal, edge[2], edgenormal[2]);
456 if (DotProduct(info->center, edgenormal[0]) < DotProduct(vert[0], edgenormal[0])
457 && DotProduct(info->center, edgenormal[1]) < DotProduct(vert[1], edgenormal[1])
458 && DotProduct(info->center, edgenormal[2]) < DotProduct(vert[2], edgenormal[2]))
460 // we got lucky, the center is within the face
461 dist = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
465 if (info->bestdist > dist)
467 info->bestdist = dist;
468 VectorScale(facenormal, (info->radius - -dist), info->nudge);
473 if (info->bestdist > dist)
475 info->bestdist = dist;
476 VectorScale(facenormal, (info->radius - dist), info->nudge);
482 // check which edge or vertex the center is nearest
483 for (i = 0;i < 3;i++)
485 f = DotProduct(info->center, edge[i]);
486 if (f >= DotProduct(vert[0], edge[i])
487 && f <= DotProduct(vert[1], edge[i]))
490 VectorMA(info->center, -f, edge[i], point);
491 dist = sqrt(DotProduct(point, point));
492 if (info->bestdist > dist)
494 info->bestdist = dist;
495 VectorScale(point, (info->radius / dist), info->nudge);
497 // skip both vertex checks
498 // (both are further away than this edge)
503 // not on edge, check first vertex of edge
504 VectorSubtract(info->center, vert[i], point);
505 dist = sqrt(DotProduct(point, point));
506 if (info->bestdist > dist)
508 info->bestdist = dist;
509 VectorScale(point, (info->radius / dist), info->nudge);
521 static void Mod_Q1BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, mnode_t *node)
525 float f = PlaneDiff(info->center, node->plane);
526 if (f >= -info->bestdist)
527 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[0]);
528 if (f <= info->bestdist)
529 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[1]);
533 if (((mleaf_t *)node)->numleafsurfaces)
534 Mod_Q1BSP_FindNonSolidLocation_r_Leaf(info, (mleaf_t *)node);
538 static void Mod_Q1BSP_FindNonSolidLocation(model_t *model, const vec3_t in, vec3_t out, float radius)
541 findnonsolidlocationinfo_t info;
547 VectorCopy(in, info.center);
548 info.radius = radius;
553 VectorClear(info.nudge);
554 info.bestdist = radius;
555 Mod_Q1BSP_FindNonSolidLocation_r(&info, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
556 VectorAdd(info.center, info.nudge, info.center);
558 while (info.bestdist < radius && ++i < 10);
559 VectorCopy(info.center, out);
562 int Mod_Q1BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
564 switch(nativecontents)
569 return SUPERCONTENTS_SOLID;
571 return SUPERCONTENTS_WATER;
573 return SUPERCONTENTS_SLIME;
575 return SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
577 return SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
582 int Mod_Q1BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
584 if (supercontents & (SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY))
585 return CONTENTS_SOLID;
586 if (supercontents & SUPERCONTENTS_SKY)
588 if (supercontents & SUPERCONTENTS_LAVA)
589 return CONTENTS_LAVA;
590 if (supercontents & SUPERCONTENTS_SLIME)
591 return CONTENTS_SLIME;
592 if (supercontents & SUPERCONTENTS_WATER)
593 return CONTENTS_WATER;
594 return CONTENTS_EMPTY;
597 typedef struct RecursiveHullCheckTraceInfo_s
599 // the hull we're tracing through
602 // the trace structure to fill in
605 // start, end, and end - start (in model space)
610 RecursiveHullCheckTraceInfo_t;
612 // 1/32 epsilon to keep floating point happy
613 #define DIST_EPSILON (0.03125)
615 #define HULLCHECKSTATE_EMPTY 0
616 #define HULLCHECKSTATE_SOLID 1
617 #define HULLCHECKSTATE_DONE 2
619 extern cvar_t collision_prefernudgedfraction;
620 static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int num, double p1f, double p2f, double p1[3], double p2[3])
622 // status variables, these don't need to be saved on the stack when
623 // recursing... but are because this should be thread-safe
624 // (note: tracing against a bbox is not thread-safe, yet)
629 // variables that need to be stored on the stack when recursing
634 // LordHavoc: a goto! everyone flee in terror... :)
639 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
640 if (!t->trace->startfound)
642 t->trace->startfound = true;
643 t->trace->startsupercontents |= num;
645 if (num & SUPERCONTENTS_LIQUIDSMASK)
646 t->trace->inwater = true;
648 t->trace->inopen = true;
649 if (num & SUPERCONTENTS_SOLID)
650 t->trace->hittexture = &mod_q1bsp_texture_solid;
651 else if (num & SUPERCONTENTS_SKY)
652 t->trace->hittexture = &mod_q1bsp_texture_sky;
653 else if (num & SUPERCONTENTS_LAVA)
654 t->trace->hittexture = &mod_q1bsp_texture_lava;
655 else if (num & SUPERCONTENTS_SLIME)
656 t->trace->hittexture = &mod_q1bsp_texture_slime;
658 t->trace->hittexture = &mod_q1bsp_texture_water;
659 t->trace->hitq3surfaceflags = t->trace->hittexture->surfaceflags;
660 t->trace->hitsupercontents = num;
661 if (num & t->trace->hitsupercontentsmask)
663 // if the first leaf is solid, set startsolid
664 if (t->trace->allsolid)
665 t->trace->startsolid = true;
666 #if COLLISIONPARANOID >= 3
669 return HULLCHECKSTATE_SOLID;
673 t->trace->allsolid = false;
674 #if COLLISIONPARANOID >= 3
677 return HULLCHECKSTATE_EMPTY;
681 // find the point distances
682 node = t->hull->clipnodes + num;
684 plane = t->hull->planes + node->planenum;
687 t1 = p1[plane->type] - plane->dist;
688 t2 = p2[plane->type] - plane->dist;
692 t1 = DotProduct (plane->normal, p1) - plane->dist;
693 t2 = DotProduct (plane->normal, p2) - plane->dist;
700 #if COLLISIONPARANOID >= 3
703 num = node->children[1];
712 #if COLLISIONPARANOID >= 3
715 num = node->children[0];
721 // the line intersects, find intersection point
722 // LordHavoc: this uses the original trace for maximum accuracy
723 #if COLLISIONPARANOID >= 3
728 t1 = t->start[plane->type] - plane->dist;
729 t2 = t->end[plane->type] - plane->dist;
733 t1 = DotProduct (plane->normal, t->start) - plane->dist;
734 t2 = DotProduct (plane->normal, t->end) - plane->dist;
737 midf = t1 / (t1 - t2);
738 midf = bound(p1f, midf, p2f);
739 VectorMA(t->start, midf, t->dist, mid);
741 // recurse both sides, front side first
742 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side], p1f, midf, p1, mid);
743 // if this side is not empty, return what it is (solid or done)
744 if (ret != HULLCHECKSTATE_EMPTY)
747 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side ^ 1], midf, p2f, mid, p2);
748 // if other side is not solid, return what it is (empty or done)
749 if (ret != HULLCHECKSTATE_SOLID)
752 // front is air and back is solid, this is the impact point...
755 t->trace->plane.dist = -plane->dist;
756 VectorNegate (plane->normal, t->trace->plane.normal);
760 t->trace->plane.dist = plane->dist;
761 VectorCopy (plane->normal, t->trace->plane.normal);
764 // calculate the true fraction
765 t1 = DotProduct(t->trace->plane.normal, t->start) - t->trace->plane.dist;
766 t2 = DotProduct(t->trace->plane.normal, t->end) - t->trace->plane.dist;
767 midf = t1 / (t1 - t2);
768 t->trace->realfraction = bound(0, midf, 1);
770 // calculate the return fraction which is nudged off the surface a bit
771 midf = (t1 - DIST_EPSILON) / (t1 - t2);
772 t->trace->fraction = bound(0, midf, 1);
774 if (collision_prefernudgedfraction.integer)
775 t->trace->realfraction = t->trace->fraction;
777 #if COLLISIONPARANOID >= 3
780 return HULLCHECKSTATE_DONE;
783 //#if COLLISIONPARANOID < 2
784 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
787 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];
788 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
789 t->trace->startsupercontents |= num;
790 if (num & SUPERCONTENTS_LIQUIDSMASK)
791 t->trace->inwater = true;
793 t->trace->inopen = true;
794 if (num & t->trace->hitsupercontentsmask)
796 t->trace->allsolid = t->trace->startsolid = true;
797 return HULLCHECKSTATE_SOLID;
801 t->trace->allsolid = t->trace->startsolid = false;
802 return HULLCHECKSTATE_EMPTY;
807 static void Mod_Q1BSP_TraceBox(struct model_s *model, int frame, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
809 // this function currently only supports same size start and end
811 RecursiveHullCheckTraceInfo_t rhc;
813 memset(&rhc, 0, sizeof(rhc));
814 memset(trace, 0, sizeof(trace_t));
816 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
817 rhc.trace->fraction = 1;
818 rhc.trace->realfraction = 1;
819 rhc.trace->allsolid = true;
820 VectorSubtract(boxmaxs, boxmins, boxsize);
822 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
823 else if (model->brush.ismcbsp)
829 vdist = 0; // shut up compiler warning
831 // find the closest hull size (this algorithm probably sucks, a qc field to override it might be in order...)
832 for (i = 1; i < model->brushq1.numhulls; i++)
834 dist = fabs(model->brushq1.hulls[i].clip_size[0] - boxsize[0]) +
835 fabs(model->brushq1.hulls[i].clip_size[1] - boxsize[1]) +
836 fabs(model->brushq1.hulls[i].clip_size[2] - boxsize[2]) * 0.25;
838 if (!vdisti || dist < vdist)
844 rhc.hull = &model->brushq1.hulls[vdisti];
846 else if (model->brush.ishlbsp)
848 // LordHavoc: this has to have a minor tolerance (the .1) because of
849 // minor float precision errors from the box being transformed around
850 if (boxsize[0] < 32.1)
852 if (boxsize[2] < 54) // pick the nearest of 36 or 72
853 rhc.hull = &model->brushq1.hulls[3]; // 32x32x36
855 rhc.hull = &model->brushq1.hulls[1]; // 32x32x72
858 rhc.hull = &model->brushq1.hulls[2]; // 64x64x64
862 // LordHavoc: this has to have a minor tolerance (the .1) because of
863 // minor float precision errors from the box being transformed around
864 if (boxsize[0] < 32.1)
865 rhc.hull = &model->brushq1.hulls[1]; // 32x32x56
867 rhc.hull = &model->brushq1.hulls[2]; // 64x64x88
869 VectorMAMAM(1, start, 1, boxmins, -1, rhc.hull->clip_mins, rhc.start);
870 VectorMAMAM(1, end, 1, boxmins, -1, rhc.hull->clip_mins, rhc.end);
871 VectorSubtract(rhc.end, rhc.start, rhc.dist);
872 #if COLLISIONPARANOID >= 2
873 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]);
874 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
879 VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
880 memset(&testtrace, 0, sizeof(trace_t));
881 rhc.trace = &testtrace;
882 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
883 rhc.trace->fraction = 1;
884 rhc.trace->realfraction = 1;
885 rhc.trace->allsolid = true;
886 VectorCopy(test, rhc.start);
887 VectorCopy(test, rhc.end);
888 VectorClear(rhc.dist);
889 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
890 //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
891 if (!trace->startsolid && testtrace.startsolid)
892 Con_Printf(" - ended in solid!\n");
896 if (VectorLength2(rhc.dist))
897 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
899 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
903 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, int boxq3surfaceflags, texture_t *boxtexture)
907 colplanef_t cbox_planes[6];
908 cbox.supercontents = boxsupercontents;
911 cbox.numtriangles = 0;
912 cbox.planes = cbox_planes;
914 cbox.elements = NULL;
922 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];
923 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];
924 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];
925 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];
926 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];
927 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];
928 cbox_planes[0].q3surfaceflags = boxq3surfaceflags;cbox_planes[0].texture = boxtexture;
929 cbox_planes[1].q3surfaceflags = boxq3surfaceflags;cbox_planes[1].texture = boxtexture;
930 cbox_planes[2].q3surfaceflags = boxq3surfaceflags;cbox_planes[2].texture = boxtexture;
931 cbox_planes[3].q3surfaceflags = boxq3surfaceflags;cbox_planes[3].texture = boxtexture;
932 cbox_planes[4].q3surfaceflags = boxq3surfaceflags;cbox_planes[4].texture = boxtexture;
933 cbox_planes[5].q3surfaceflags = boxq3surfaceflags;cbox_planes[5].texture = boxtexture;
934 memset(trace, 0, sizeof(trace_t));
935 trace->hitsupercontentsmask = hitsupercontentsmask;
937 trace->realfraction = 1;
938 Collision_TraceLineBrushFloat(trace, start, end, &cbox, &cbox);
940 RecursiveHullCheckTraceInfo_t rhc;
941 static hull_t box_hull;
942 static mclipnode_t box_clipnodes[6];
943 static mplane_t box_planes[6];
944 // fill in a default trace
945 memset(&rhc, 0, sizeof(rhc));
946 memset(trace, 0, sizeof(trace_t));
947 //To keep everything totally uniform, bounding boxes are turned into small
948 //BSP trees instead of being compared directly.
949 // create a temp hull from bounding box sizes
950 box_planes[0].dist = cmaxs[0] - mins[0];
951 box_planes[1].dist = cmins[0] - maxs[0];
952 box_planes[2].dist = cmaxs[1] - mins[1];
953 box_planes[3].dist = cmins[1] - maxs[1];
954 box_planes[4].dist = cmaxs[2] - mins[2];
955 box_planes[5].dist = cmins[2] - maxs[2];
956 #if COLLISIONPARANOID >= 3
957 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]);
960 if (box_hull.clipnodes == NULL)
964 //Set up the planes and clipnodes so that the six floats of a bounding box
965 //can just be stored out and get a proper hull_t structure.
967 box_hull.clipnodes = box_clipnodes;
968 box_hull.planes = box_planes;
969 box_hull.firstclipnode = 0;
970 box_hull.lastclipnode = 5;
972 for (i = 0;i < 6;i++)
974 box_clipnodes[i].planenum = i;
978 box_clipnodes[i].children[side] = CONTENTS_EMPTY;
980 box_clipnodes[i].children[side^1] = i + 1;
982 box_clipnodes[i].children[side^1] = CONTENTS_SOLID;
984 box_planes[i].type = i>>1;
985 box_planes[i].normal[i>>1] = 1;
989 // trace a line through the generated clipping hull
990 //rhc.boxsupercontents = boxsupercontents;
991 rhc.hull = &box_hull;
993 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
994 rhc.trace->fraction = 1;
995 rhc.trace->realfraction = 1;
996 rhc.trace->allsolid = true;
997 VectorCopy(start, rhc.start);
998 VectorCopy(end, rhc.end);
999 VectorSubtract(rhc.end, rhc.start, rhc.dist);
1000 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
1001 //VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
1002 if (rhc.trace->startsupercontents)
1003 rhc.trace->startsupercontents = boxsupercontents;
1007 static int Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(mnode_t *node, double p1[3], double p2[3])
1010 double midf, mid[3];
1016 // find the point distances
1017 mplane_t *plane = node->plane;
1018 if (plane->type < 3)
1020 t1 = p1[plane->type] - plane->dist;
1021 t2 = p2[plane->type] - plane->dist;
1025 t1 = DotProduct (plane->normal, p1) - plane->dist;
1026 t2 = DotProduct (plane->normal, p2) - plane->dist;
1033 node = node->children[1];
1042 node = node->children[0];
1048 midf = t1 / (t1 - t2);
1049 VectorLerp(p1, midf, p2, mid);
1051 // recurse both sides, front side first
1052 // return 2 if empty is followed by solid (hit something)
1053 // do not return 2 if both are solid or both empty,
1054 // or if start is solid and end is empty
1055 // as these degenerate cases usually indicate the eye is in solid and
1056 // should see the target point anyway
1057 ret = Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ], p1, mid);
1060 ret = Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ^ 1], mid, p2);
1065 return ((mleaf_t *)node)->clusterindex < 0;
1068 static qboolean Mod_Q1BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end)
1070 // this function currently only supports same size start and end
1071 double tracestart[3], traceend[3];
1072 VectorCopy(start, tracestart);
1073 VectorCopy(end, traceend);
1074 return Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(model->brush.data_nodes, tracestart, traceend) != 2;
1077 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)
1081 float mid, distz = endz - startz;
1085 return false; // didn't hit anything
1087 switch (node->plane->type)
1090 node = node->children[x < node->plane->dist];
1093 node = node->children[y < node->plane->dist];
1096 side = startz < node->plane->dist;
1097 if ((endz < node->plane->dist) == side)
1099 node = node->children[side];
1102 // found an intersection
1103 mid = node->plane->dist;
1106 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
1107 front += startz * node->plane->normal[2];
1108 back += endz * node->plane->normal[2];
1109 side = front < node->plane->dist;
1110 if ((back < node->plane->dist) == side)
1112 node = node->children[side];
1115 // found an intersection
1116 mid = startz + distz * (front - node->plane->dist) / (front - back);
1120 // go down front side
1121 if (node->children[side]->plane && Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
1122 return true; // hit something
1125 // check for impact on this node
1126 if (node->numsurfaces)
1129 msurface_t *surface;
1131 surface = model->data_surfaces + node->firstsurface;
1132 for (i = 0;i < node->numsurfaces;i++, surface++)
1134 if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->lightmapinfo->samples)
1135 continue; // no lightmaps
1137 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];
1138 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];
1140 if (ds >= 0 && ds < surface->lightmapinfo->extents[0] && dt >= 0 && dt < surface->lightmapinfo->extents[1])
1142 unsigned char *lightmap;
1143 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;
1144 lmwidth = ((surface->lightmapinfo->extents[0]>>4)+1);
1145 lmheight = ((surface->lightmapinfo->extents[1]>>4)+1);
1146 line3 = lmwidth * 3; // LordHavoc: *3 for colored lighting
1147 size3 = lmwidth * lmheight * 3; // LordHavoc: *3 for colored lighting
1149 lightmap = surface->lightmapinfo->samples + ((dt>>4) * lmwidth + (ds>>4))*3; // LordHavoc: *3 for colored lighting
1151 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++)
1153 scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]];
1154 r00 += lightmap[ 0] * scale;g00 += lightmap[ 1] * scale;b00 += lightmap[ 2] * scale;
1155 r01 += lightmap[ 3] * scale;g01 += lightmap[ 4] * scale;b01 += lightmap[ 5] * scale;
1156 r10 += lightmap[line3+0] * scale;g10 += lightmap[line3+1] * scale;b10 += lightmap[line3+2] * scale;
1157 r11 += lightmap[line3+3] * scale;g11 += lightmap[line3+4] * scale;b11 += lightmap[line3+5] * scale;
1162 LordHavoc: here's the readable version of the interpolation
1163 code, not quite as easy for the compiler to optimize...
1165 dsfrac is the X position in the lightmap pixel, * 16
1166 dtfrac is the Y position in the lightmap pixel, * 16
1167 r00 is top left corner, r01 is top right corner
1168 r10 is bottom left corner, r11 is bottom right corner
1169 g and b are the same layout.
1170 r0 and r1 are the top and bottom intermediate results
1172 first we interpolate the top two points, to get the top
1175 r0 = (((r01-r00) * dsfrac) >> 4) + r00;
1176 g0 = (((g01-g00) * dsfrac) >> 4) + g00;
1177 b0 = (((b01-b00) * dsfrac) >> 4) + b00;
1179 then we interpolate the bottom two points, to get the
1182 r1 = (((r11-r10) * dsfrac) >> 4) + r10;
1183 g1 = (((g11-g10) * dsfrac) >> 4) + g10;
1184 b1 = (((b11-b10) * dsfrac) >> 4) + b10;
1186 then we interpolate the top and bottom samples to get the
1187 middle sample (the one which was requested)
1189 r = (((r1-r0) * dtfrac) >> 4) + r0;
1190 g = (((g1-g0) * dtfrac) >> 4) + g0;
1191 b = (((b1-b0) * dtfrac) >> 4) + b0;
1194 ambientcolor[0] += (float) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)) * (1.0f / 32768.0f);
1195 ambientcolor[1] += (float) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)) * (1.0f / 32768.0f);
1196 ambientcolor[2] += (float) ((((((((b11-b10) * dsfrac) >> 4) + b10)-((((b01-b00) * dsfrac) >> 4) + b00)) * dtfrac) >> 4) + ((((b01-b00) * dsfrac) >> 4) + b00)) * (1.0f / 32768.0f);
1197 return true; // success
1202 // go down back side
1203 node = node->children[side ^ 1];
1205 distz = endz - startz;
1210 void Mod_Q1BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
1212 // pretend lighting is coming down from above (due to lack of a lightgrid to know primary lighting direction)
1213 VectorSet(diffusenormal, 0, 0, 1);
1215 if (!model->brushq1.lightdata)
1217 VectorSet(ambientcolor, 1, 1, 1);
1218 VectorSet(diffusecolor, 0, 0, 0);
1222 Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, p[0], p[1], p[2] + 0.125, p[2] - 65536);
1225 static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char *inend, unsigned char *out, unsigned char *outend)
1228 unsigned char *outstart = out;
1229 while (out < outend)
1233 Con_Printf("Mod_Q1BSP_DecompressVis: input underrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
1243 Con_Printf("Mod_Q1BSP_DecompressVis: input underrun (during zero-run) on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
1246 for (c = *in++;c > 0;c--)
1250 Con_Printf("Mod_Q1BSP_DecompressVis: output overrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
1261 R_Q1BSP_LoadSplitSky
1263 A sky texture is 256*128, with the right side being a masked overlay
1266 void R_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesperpixel)
1269 unsigned solidpixels[128*128], alphapixels[128*128];
1271 // allocate a texture pool if we need it
1272 if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
1273 loadmodel->texturepool = R_AllocTexturePool();
1275 if (bytesperpixel == 4)
1277 for (i = 0;i < 128;i++)
1279 for (j = 0;j < 128;j++)
1281 solidpixels[(i*128) + j] = ((unsigned *)src)[i*256+j+128];
1282 alphapixels[(i*128) + j] = ((unsigned *)src)[i*256+j];
1288 // make an average value for the back to avoid
1289 // a fringe on the top level
1298 for (i = 0;i < 128;i++)
1300 for (j = 0;j < 128;j++)
1302 p = src[i*256 + j + 128];
1303 r += palette_rgb[p][0];
1304 g += palette_rgb[p][1];
1305 b += palette_rgb[p][2];
1308 bgra.b[2] = r/(128*128);
1309 bgra.b[1] = g/(128*128);
1310 bgra.b[0] = b/(128*128);
1312 for (i = 0;i < 128;i++)
1314 for (j = 0;j < 128;j++)
1316 solidpixels[(i*128) + j] = palette_bgra_complete[src[i*256 + j + 128]];
1318 alphapixels[(i*128) + j] = p ? palette_bgra_complete[p] : bgra.i;
1323 loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", 128, 128, (unsigned char *) solidpixels, TEXTYPE_BGRA, TEXF_PRECACHE, NULL);
1324 loadmodel->brush.alphaskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_alphatexture", 128, 128, (unsigned char *) alphapixels, TEXTYPE_BGRA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
1327 static void Mod_Q1BSP_LoadTextures(lump_t *l)
1329 int i, j, k, num, max, altmax, mtwidth, mtheight, *dofs, incomplete;
1330 skinframe_t *skinframe;
1332 texture_t *tx, *tx2, *anims[10], *altanims[10];
1334 unsigned char *data, *mtdata;
1336 char mapname[MAX_QPATH], name[MAX_QPATH];
1338 loadmodel->data_textures = NULL;
1340 // add two slots for notexture walls and notexture liquids
1343 m = (dmiptexlump_t *)(mod_base + l->fileofs);
1344 m->nummiptex = LittleLong (m->nummiptex);
1345 loadmodel->num_textures = m->nummiptex + 2;
1346 loadmodel->num_texturesperskin = loadmodel->num_textures;
1351 loadmodel->num_textures = 2;
1352 loadmodel->num_texturesperskin = loadmodel->num_textures;
1355 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
1357 // fill out all slots with notexture
1358 if (cls.state != ca_dedicated)
1359 skinframe = R_SkinFrame_LoadMissing();
1362 for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
1364 strlcpy(tx->name, "NO TEXTURE FOUND", sizeof(tx->name));
1367 if (cls.state != ca_dedicated)
1369 tx->numskinframes = 1;
1370 tx->skinframerate = 1;
1371 tx->skinframes[0] = skinframe;
1372 tx->currentskinframe = tx->skinframes[0];
1373 tx->basematerialflags = 0;
1375 if (i == loadmodel->num_textures - 1)
1377 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1378 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1379 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1383 tx->basematerialflags |= MATERIALFLAG_WALL;
1384 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1385 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1387 tx->currentframe = tx;
1389 // clear water settings
1392 tx->refractfactor = 1;
1393 Vector4Set(tx->refractcolor4f, 1, 1, 1, 1);
1394 tx->reflectfactor = 1;
1395 Vector4Set(tx->reflectcolor4f, 1, 1, 1, 1);
1400 Con_Printf("%s: no miptex lump to load textures from\n", loadmodel->name);
1404 s = loadmodel->name;
1405 if (!strncasecmp(s, "maps/", 5))
1407 FS_StripExtension(s, mapname, sizeof(mapname));
1409 // just to work around bounds checking when debugging with it (array index out of bounds error thing)
1411 // LordHavoc: mostly rewritten map texture loader
1412 for (i = 0;i < m->nummiptex;i++)
1414 dofs[i] = LittleLong(dofs[i]);
1415 if (r_nosurftextures.integer)
1419 Con_DPrintf("%s: miptex #%i missing\n", loadmodel->name, i);
1422 dmiptex = (miptex_t *)((unsigned char *)m + dofs[i]);
1424 // copy name, but only up to 16 characters
1425 // (the output buffer can hold more than this, but the input buffer is
1427 for (j = 0;dmiptex->name[j] && j < 16;j++)
1428 name[j] = dmiptex->name[j];
1433 sprintf(name, "unnamed%i", i);
1434 Con_DPrintf("%s: warning: renaming unnamed texture to %s\n", loadmodel->name, name);
1437 mtwidth = LittleLong(dmiptex->width);
1438 mtheight = LittleLong(dmiptex->height);
1440 j = LittleLong(dmiptex->offsets[0]);
1444 if (j < 40 || j + mtwidth * mtheight > l->filelen)
1446 Con_Printf("%s: Texture \"%s\" is corrupt or incomplete\n", loadmodel->name, dmiptex->name);
1449 mtdata = (unsigned char *)dmiptex + j;
1452 if ((mtwidth & 15) || (mtheight & 15))
1453 Con_DPrintf("%s: warning: texture \"%s\" is not 16 aligned\n", loadmodel->name, dmiptex->name);
1455 // LordHavoc: force all names to lowercase
1456 for (j = 0;name[j];j++)
1457 if (name[j] >= 'A' && name[j] <= 'Z')
1458 name[j] += 'a' - 'A';
1460 if (dmiptex->name[0] && Mod_LoadTextureFromQ3Shader(loadmodel->data_textures + i, name, true, false, false))
1463 tx = loadmodel->data_textures + i;
1464 strlcpy(tx->name, name, sizeof(tx->name));
1465 tx->width = mtwidth;
1466 tx->height = mtheight;
1468 if (tx->name[0] == '*')
1470 if (!strncmp(tx->name, "*lava", 5))
1472 tx->supercontents = mod_q1bsp_texture_lava.supercontents;
1473 tx->surfaceflags = mod_q1bsp_texture_lava.surfaceflags;
1475 else if (!strncmp(tx->name, "*slime", 6))
1477 tx->supercontents = mod_q1bsp_texture_slime.supercontents;
1478 tx->surfaceflags = mod_q1bsp_texture_slime.surfaceflags;
1482 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1483 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1486 else if (!strncmp(tx->name, "sky", 3))
1488 tx->supercontents = mod_q1bsp_texture_sky.supercontents;
1489 tx->surfaceflags = mod_q1bsp_texture_sky.surfaceflags;
1493 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1494 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1497 if (cls.state != ca_dedicated)
1499 // LordHavoc: HL sky textures are entirely different than quake
1500 if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == 256 && mtheight == 128)
1502 if (loadmodel->isworldmodel)
1504 data = loadimagepixelsbgra(tx->name, false, false);
1505 if (data && image_width == 256 && image_height == 128)
1507 R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1510 else if (mtdata != NULL)
1511 R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1516 skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s/%s", mapname, tx->name), TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0) | TEXF_COMPRESS, false);
1518 skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s", tx->name), TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0) | TEXF_COMPRESS, false);
1521 // did not find external texture, load it from the bsp or wad3
1522 if (loadmodel->brush.ishlbsp)
1524 // internal texture overrides wad
1525 unsigned char *pixels, *freepixels;
1526 pixels = freepixels = NULL;
1528 pixels = W_ConvertWAD3TextureBGRA(dmiptex);
1530 pixels = freepixels = W_GetTextureBGRA(tx->name);
1533 tx->width = image_width;
1534 tx->height = image_height;
1535 skinframe = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0), pixels, image_width, image_height);
1538 Mem_Free(freepixels);
1540 else if (mtdata) // texture included
1541 skinframe = R_SkinFrame_LoadInternalQuake(tx->name, TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0), false, r_fullbrights.integer, mtdata, tx->width, tx->height);
1543 // if skinframe is still NULL the "missing" texture will be used
1545 tx->skinframes[0] = skinframe;
1548 tx->basematerialflags = 0;
1549 if (tx->name[0] == '*')
1551 // LordHavoc: some turbulent textures should not be affected by wateralpha
1552 if (strncmp(tx->name,"*lava",5)
1553 && strncmp(tx->name,"*teleport",9)
1554 && strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1555 tx->basematerialflags |= MATERIALFLAG_WATERALPHA | MATERIALFLAG_NOSHADOW | MATERIALFLAG_WATERSHADER;
1556 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1558 else if (!strncmp(tx->name, "sky", 3))
1559 tx->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
1561 tx->basematerialflags |= MATERIALFLAG_WALL;
1562 if (tx->skinframes[0] && tx->skinframes[0]->fog)
1563 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1565 // start out with no animation
1566 tx->currentframe = tx;
1567 tx->currentskinframe = tx->skinframes[0];
1571 // sequence the animations
1572 for (i = 0;i < m->nummiptex;i++)
1574 tx = loadmodel->data_textures + i;
1575 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1577 if (tx->anim_total[0] || tx->anim_total[1])
1578 continue; // already sequenced
1580 // find the number of frames in the animation
1581 memset(anims, 0, sizeof(anims));
1582 memset(altanims, 0, sizeof(altanims));
1584 for (j = i;j < m->nummiptex;j++)
1586 tx2 = loadmodel->data_textures + j;
1587 if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
1591 if (num >= '0' && num <= '9')
1592 anims[num - '0'] = tx2;
1593 else if (num >= 'a' && num <= 'j')
1594 altanims[num - 'a'] = tx2;
1596 Con_Printf("Bad animating texture %s\n", tx->name);
1600 for (j = 0;j < 10;j++)
1607 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
1610 for (j = 0;j < max;j++)
1614 Con_Printf("Missing frame %i of %s\n", j, tx->name);
1618 for (j = 0;j < altmax;j++)
1622 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
1631 // if there is no alternate animation, duplicate the primary
1632 // animation into the alternate
1634 for (k = 0;k < 10;k++)
1635 altanims[k] = anims[k];
1638 // link together the primary animation
1639 for (j = 0;j < max;j++)
1642 tx2->animated = true;
1643 tx2->anim_total[0] = max;
1644 tx2->anim_total[1] = altmax;
1645 for (k = 0;k < 10;k++)
1647 tx2->anim_frames[0][k] = anims[k];
1648 tx2->anim_frames[1][k] = altanims[k];
1652 // if there really is an alternate anim...
1653 if (anims[0] != altanims[0])
1655 // link together the alternate animation
1656 for (j = 0;j < altmax;j++)
1659 tx2->animated = true;
1660 // the primary/alternate are reversed here
1661 tx2->anim_total[0] = altmax;
1662 tx2->anim_total[1] = max;
1663 for (k = 0;k < 10;k++)
1665 tx2->anim_frames[0][k] = altanims[k];
1666 tx2->anim_frames[1][k] = anims[k];
1673 static void Mod_Q1BSP_LoadLighting(lump_t *l)
1676 unsigned char *in, *out, *data, d;
1677 char litfilename[MAX_QPATH];
1678 char dlitfilename[MAX_QPATH];
1679 fs_offset_t filesize;
1680 if (loadmodel->brush.ishlbsp) // LordHavoc: load the colored lighting data straight
1682 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1683 for (i=0; i<l->filelen; i++)
1684 loadmodel->brushq1.lightdata[i] = mod_base[l->fileofs+i] >>= 1;
1686 else if (loadmodel->brush.ismcbsp)
1688 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1689 memcpy(loadmodel->brushq1.lightdata, mod_base + l->fileofs, l->filelen);
1691 else // LordHavoc: bsp version 29 (normal white lighting)
1693 // LordHavoc: hope is not lost yet, check for a .lit file to load
1694 strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
1695 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
1696 strlcpy (dlitfilename, litfilename, sizeof (dlitfilename));
1697 strlcat (litfilename, ".lit", sizeof (litfilename));
1698 strlcat (dlitfilename, ".dlit", sizeof (dlitfilename));
1699 data = (unsigned char*) FS_LoadFile(litfilename, tempmempool, false, &filesize);
1702 if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1704 i = LittleLong(((int *)data)[1]);
1707 Con_DPrintf("loaded %s\n", litfilename);
1708 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1709 memcpy(loadmodel->brushq1.lightdata, data + 8, filesize - 8);
1711 data = (unsigned char*) FS_LoadFile(dlitfilename, tempmempool, false, &filesize);
1714 if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1716 i = LittleLong(((int *)data)[1]);
1719 Con_DPrintf("loaded %s\n", dlitfilename);
1720 loadmodel->brushq1.nmaplightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1721 memcpy(loadmodel->brushq1.nmaplightdata, data + 8, filesize - 8);
1722 loadmodel->brushq3.deluxemapping_modelspace = false;
1723 loadmodel->brushq3.deluxemapping = true;
1732 Con_Printf("Unknown .lit file version (%d)\n", i);
1734 else if (filesize == 8)
1735 Con_Print("Empty .lit file, ignoring\n");
1737 Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", (int) filesize, (int) (8 + l->filelen * 3));
1744 // LordHavoc: oh well, expand the white lighting data
1747 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen*3);
1748 in = mod_base + l->fileofs;
1749 out = loadmodel->brushq1.lightdata;
1750 for (i = 0;i < l->filelen;i++)
1760 static void Mod_Q1BSP_LoadVisibility(lump_t *l)
1762 loadmodel->brushq1.num_compressedpvs = 0;
1763 loadmodel->brushq1.data_compressedpvs = NULL;
1766 loadmodel->brushq1.num_compressedpvs = l->filelen;
1767 loadmodel->brushq1.data_compressedpvs = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1768 memcpy(loadmodel->brushq1.data_compressedpvs, mod_base + l->fileofs, l->filelen);
1771 // used only for HalfLife maps
1772 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
1774 char key[128], value[4096];
1779 if (!COM_ParseToken_Simple(&data, false, false))
1781 if (com_token[0] != '{')
1785 if (!COM_ParseToken_Simple(&data, false, false))
1787 if (com_token[0] == '}')
1788 break; // end of worldspawn
1789 if (com_token[0] == '_')
1790 strlcpy(key, com_token + 1, sizeof(key));
1792 strlcpy(key, com_token, sizeof(key));
1793 while (key[strlen(key)-1] == ' ') // remove trailing spaces
1794 key[strlen(key)-1] = 0;
1795 if (!COM_ParseToken_Simple(&data, false, false))
1797 dpsnprintf(value, sizeof(value), "%s", com_token);
1798 if (!strcmp("wad", key)) // for HalfLife maps
1800 if (loadmodel->brush.ishlbsp)
1803 for (i = 0;i < (int)sizeof(value);i++)
1804 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
1808 for (;i < (int)sizeof(value);i++)
1810 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
1811 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
1813 else if (value[i] == ';' || value[i] == 0)
1817 strlcpy(wadname, "textures/", sizeof(wadname));
1818 strlcat(wadname, &value[j], sizeof(wadname));
1819 W_LoadTextureWadFile(wadname, false);
1831 static void Mod_Q1BSP_LoadEntities(lump_t *l)
1833 loadmodel->brush.entities = NULL;
1836 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1837 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
1838 if (loadmodel->brush.ishlbsp)
1839 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
1843 static void Mod_Q1BSP_LoadVertexes(lump_t *l)
1849 in = (dvertex_t *)(mod_base + l->fileofs);
1850 if (l->filelen % sizeof(*in))
1851 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
1852 count = l->filelen / sizeof(*in);
1853 out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1855 loadmodel->brushq1.vertexes = out;
1856 loadmodel->brushq1.numvertexes = count;
1858 for ( i=0 ; i<count ; i++, in++, out++)
1860 out->position[0] = LittleFloat(in->point[0]);
1861 out->position[1] = LittleFloat(in->point[1]);
1862 out->position[2] = LittleFloat(in->point[2]);
1866 // The following two functions should be removed and MSG_* or SZ_* function sets adjusted so they
1867 // can be used for this
1869 int SB_ReadInt (unsigned char **buffer)
1872 i = ((*buffer)[0]) + 256*((*buffer)[1]) + 65536*((*buffer)[2]) + 16777216*((*buffer)[3]);
1878 float SB_ReadFloat (unsigned char **buffer)
1886 u.i = SB_ReadInt (buffer);
1890 static void Mod_Q1BSP_LoadSubmodels(lump_t *l, hullinfo_t *hullinfo)
1892 unsigned char *index;
1896 index = (unsigned char *)(mod_base + l->fileofs);
1897 if (l->filelen % (48+4*hullinfo->filehulls))
1898 Host_Error ("Mod_Q1BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
1900 count = l->filelen / (48+4*hullinfo->filehulls);
1901 out = (dmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
1903 loadmodel->brushq1.submodels = out;
1904 loadmodel->brush.numsubmodels = count;
1906 for (i = 0; i < count; i++, out++)
1908 // spread out the mins / maxs by a pixel
1909 out->mins[0] = SB_ReadFloat (&index) - 1;
1910 out->mins[1] = SB_ReadFloat (&index) - 1;
1911 out->mins[2] = SB_ReadFloat (&index) - 1;
1912 out->maxs[0] = SB_ReadFloat (&index) + 1;
1913 out->maxs[1] = SB_ReadFloat (&index) + 1;
1914 out->maxs[2] = SB_ReadFloat (&index) + 1;
1915 out->origin[0] = SB_ReadFloat (&index);
1916 out->origin[1] = SB_ReadFloat (&index);
1917 out->origin[2] = SB_ReadFloat (&index);
1918 for (j = 0; j < hullinfo->filehulls; j++)
1919 out->headnode[j] = SB_ReadInt (&index);
1920 out->visleafs = SB_ReadInt (&index);
1921 out->firstface = SB_ReadInt (&index);
1922 out->numfaces = SB_ReadInt (&index);
1926 static void Mod_Q1BSP_LoadEdges(lump_t *l)
1932 in = (dedge_t *)(mod_base + l->fileofs);
1933 if (l->filelen % sizeof(*in))
1934 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
1935 count = l->filelen / sizeof(*in);
1936 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1938 loadmodel->brushq1.edges = out;
1939 loadmodel->brushq1.numedges = count;
1941 for ( i=0 ; i<count ; i++, in++, out++)
1943 out->v[0] = (unsigned short)LittleShort(in->v[0]);
1944 out->v[1] = (unsigned short)LittleShort(in->v[1]);
1945 if (out->v[0] >= loadmodel->brushq1.numvertexes || out->v[1] >= loadmodel->brushq1.numvertexes)
1947 Con_Printf("Mod_Q1BSP_LoadEdges: %s has invalid vertex indices in edge %i (vertices %i %i >= numvertices %i)\n", loadmodel->name, i, out->v[0], out->v[1], loadmodel->brushq1.numvertexes);
1954 static void Mod_Q1BSP_LoadTexinfo(lump_t *l)
1958 int i, j, k, count, miptex;
1960 in = (texinfo_t *)(mod_base + l->fileofs);
1961 if (l->filelen % sizeof(*in))
1962 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
1963 count = l->filelen / sizeof(*in);
1964 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1966 loadmodel->brushq1.texinfo = out;
1967 loadmodel->brushq1.numtexinfo = count;
1969 for (i = 0;i < count;i++, in++, out++)
1971 for (k = 0;k < 2;k++)
1972 for (j = 0;j < 4;j++)
1973 out->vecs[k][j] = LittleFloat(in->vecs[k][j]);
1975 miptex = LittleLong(in->miptex);
1976 out->flags = LittleLong(in->flags);
1978 out->texture = NULL;
1979 if (loadmodel->data_textures)
1981 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
1982 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
1984 out->texture = loadmodel->data_textures + miptex;
1986 if (out->flags & TEX_SPECIAL)
1988 // if texture chosen is NULL or the shader needs a lightmap,
1989 // force to notexture water shader
1990 if (out->texture == NULL || out->texture->basematerialflags & MATERIALFLAG_WALL)
1991 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 1);
1995 // if texture chosen is NULL, force to notexture
1996 if (out->texture == NULL)
1997 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 2);
2003 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
2008 mins[0] = mins[1] = mins[2] = 9999;
2009 maxs[0] = maxs[1] = maxs[2] = -9999;
2011 for (i = 0;i < numverts;i++)
2013 for (j = 0;j < 3;j++, v++)
2023 #define MAX_SUBDIVPOLYTRIANGLES 4096
2024 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
2026 static int subdivpolyverts, subdivpolytriangles;
2027 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
2028 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
2030 static int subdivpolylookupvert(vec3_t v)
2033 for (i = 0;i < subdivpolyverts;i++)
2034 if (subdivpolyvert[i][0] == v[0]
2035 && subdivpolyvert[i][1] == v[1]
2036 && subdivpolyvert[i][2] == v[2])
2038 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
2039 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
2040 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
2041 return subdivpolyverts++;
2044 static void SubdividePolygon(int numverts, float *verts)
2046 int i, i1, i2, i3, f, b, c, p;
2047 vec3_t mins, maxs, front[256], back[256];
2048 float m, *pv, *cv, dist[256], frac;
2051 Host_Error("SubdividePolygon: ran out of verts in buffer");
2053 BoundPoly(numverts, verts, mins, maxs);
2055 for (i = 0;i < 3;i++)
2057 m = (mins[i] + maxs[i]) * 0.5;
2058 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
2059 if (maxs[i] - m < 8)
2061 if (m - mins[i] < 8)
2065 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
2066 dist[c] = cv[i] - m;
2069 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
2073 VectorCopy(pv, front[f]);
2078 VectorCopy(pv, back[b]);
2081 if (dist[p] == 0 || dist[c] == 0)
2083 if ((dist[p] > 0) != (dist[c] > 0) )
2086 frac = dist[p] / (dist[p] - dist[c]);
2087 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
2088 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
2089 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
2095 SubdividePolygon(f, front[0]);
2096 SubdividePolygon(b, back[0]);
2100 i1 = subdivpolylookupvert(verts);
2101 i2 = subdivpolylookupvert(verts + 3);
2102 for (i = 2;i < numverts;i++)
2104 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
2106 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
2110 i3 = subdivpolylookupvert(verts + i * 3);
2111 subdivpolyindex[subdivpolytriangles][0] = i1;
2112 subdivpolyindex[subdivpolytriangles][1] = i2;
2113 subdivpolyindex[subdivpolytriangles][2] = i3;
2115 subdivpolytriangles++;
2119 //Breaks a polygon up along axial 64 unit
2120 //boundaries so that turbulent and sky warps
2121 //can be done reasonably.
2122 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
2128 subdivpolytriangles = 0;
2129 subdivpolyverts = 0;
2130 SubdividePolygon(surface->num_vertices, (surface->mesh->data_vertex3f + 3 * surface->num_firstvertex));
2131 if (subdivpolytriangles < 1)
2132 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?");
2134 surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
2135 mesh->num_vertices = subdivpolyverts;
2136 mesh->num_triangles = subdivpolytriangles;
2137 mesh->vertex = (surfvertex_t *)(mesh + 1);
2138 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
2139 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
2141 for (i = 0;i < mesh->num_triangles;i++)
2142 for (j = 0;j < 3;j++)
2143 mesh->index[i*3+j] = subdivpolyindex[i][j];
2145 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
2147 VectorCopy(subdivpolyvert[i], v->v);
2148 v->st[0] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[0]);
2149 v->st[1] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[1]);
2154 static qboolean Mod_Q1BSP_AllocLightmapBlock(int *lineused, int totalwidth, int totalheight, int blockwidth, int blockheight, int *outx, int *outy)
2157 int bestx = totalwidth, besty = 0;
2158 // find the left-most space we can find
2159 for (y = 0;y <= totalheight - blockheight;y++)
2162 for (y2 = 0;y2 < blockheight;y2++)
2163 x2 = max(x2, lineused[y+y2]);
2170 // if the best was not good enough, return failure
2171 if (bestx > totalwidth - blockwidth)
2173 // we found a good spot
2178 // now mark the space used
2179 for (y2 = 0;y2 < blockheight;y2++)
2180 lineused[besty+y2] = bestx + blockwidth;
2185 extern cvar_t gl_max_size;
2186 static void Mod_Q1BSP_LoadFaces(lump_t *l)
2189 msurface_t *surface;
2190 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber, lightmapsize, totallightmapsamples;
2191 float texmins[2], texmaxs[2], val;
2192 #define LIGHTMAPSIZE 1024
2193 rtexture_t *lightmaptexture, *deluxemaptexture;
2194 int lightmap_lineused[LIGHTMAPSIZE];
2196 in = (dface_t *)(mod_base + l->fileofs);
2197 if (l->filelen % sizeof(*in))
2198 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
2199 count = l->filelen / sizeof(*in);
2200 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
2201 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
2203 loadmodel->num_surfaces = count;
2207 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs);surfacenum < count;surfacenum++, in++)
2209 numedges = (unsigned short)LittleShort(in->numedges);
2210 totalverts += numedges;
2211 totaltris += numedges - 2;
2214 Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false, false);
2216 lightmaptexture = NULL;
2217 deluxemaptexture = r_texture_blanknormalmap;
2219 lightmapsize = bound(256, gl_max_size.integer, LIGHTMAPSIZE);
2220 totallightmapsamples = 0;
2224 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs), surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, in++, surface++)
2226 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
2228 // FIXME: validate edges, texinfo, etc?
2229 firstedge = LittleLong(in->firstedge);
2230 numedges = (unsigned short)LittleShort(in->numedges);
2231 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)
2232 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)", firstedge, numedges, loadmodel->brushq1.numsurfedges);
2233 i = (unsigned short)LittleShort(in->texinfo);
2234 if ((unsigned int) i >= (unsigned int) loadmodel->brushq1.numtexinfo)
2235 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)", i, loadmodel->brushq1.numtexinfo);
2236 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + i;
2237 surface->texture = surface->lightmapinfo->texinfo->texture;
2239 planenum = (unsigned short)LittleShort(in->planenum);
2240 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
2241 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)", planenum, loadmodel->brush.num_planes);
2243 //surface->flags = surface->texture->flags;
2244 //if (LittleShort(in->side))
2245 // surface->flags |= SURF_PLANEBACK;
2246 //surface->plane = loadmodel->brush.data_planes + planenum;
2248 surface->num_firstvertex = totalverts;
2249 surface->num_vertices = numedges;
2250 surface->num_firsttriangle = totaltris;
2251 surface->num_triangles = numedges - 2;
2252 totalverts += numedges;
2253 totaltris += numedges - 2;
2255 // convert edges back to a normal polygon
2256 for (i = 0;i < surface->num_vertices;i++)
2258 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
2261 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2263 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2264 s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2265 t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2266 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
2267 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
2268 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
2269 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
2270 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
2273 for (i = 0;i < surface->num_triangles;i++)
2275 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
2276 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
2277 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
2280 // compile additional data about the surface geometry
2281 Mod_BuildNormals(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, loadmodel->surfmesh.data_vertex3f, (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle), loadmodel->surfmesh.data_normal3f, true);
2282 Mod_BuildTextureVectorsFromNormals(surface->num_firstvertex, surface->num_vertices, surface->num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_texcoordtexture2f, loadmodel->surfmesh.data_normal3f, (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle), loadmodel->surfmesh.data_svector3f, loadmodel->surfmesh.data_tvector3f, true);
2283 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
2285 // generate surface extents information
2286 texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2287 texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2288 for (i = 1;i < surface->num_vertices;i++)
2290 for (j = 0;j < 2;j++)
2292 val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
2293 texmins[j] = min(texmins[j], val);
2294 texmaxs[j] = max(texmaxs[j], val);
2297 for (i = 0;i < 2;i++)
2299 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
2300 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
2303 smax = surface->lightmapinfo->extents[0] >> 4;
2304 tmax = surface->lightmapinfo->extents[1] >> 4;
2305 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2306 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2309 for (i = 0;i < MAXLIGHTMAPS;i++)
2310 surface->lightmapinfo->styles[i] = in->styles[i];
2311 surface->lightmaptexture = NULL;
2312 surface->deluxemaptexture = r_texture_blanknormalmap;
2313 i = LittleLong(in->lightofs);
2316 surface->lightmapinfo->samples = NULL;
2317 // give non-lightmapped water a 1x white lightmap
2318 if ((surface->texture->basematerialflags & MATERIALFLAG_WATER) && (surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
2320 surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2321 surface->lightmapinfo->styles[0] = 0;
2322 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
2325 else if (loadmodel->brush.ishlbsp) // LordHavoc: HalfLife map (bsp version 30)
2326 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + i;
2327 else // LordHavoc: white lighting (bsp version 29)
2329 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (i * 3);
2330 if (loadmodel->brushq1.nmaplightdata)
2331 surface->lightmapinfo->nmapsamples = loadmodel->brushq1.nmaplightdata + (i * 3);
2334 // check if we should apply a lightmap to this
2335 if (!(surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
2337 if (ssize > 256 || tsize > 256)
2338 Host_Error("Bad surface extents");
2340 if (lightmapsize < ssize)
2341 lightmapsize = ssize;
2342 if (lightmapsize < tsize)
2343 lightmapsize = tsize;
2345 totallightmapsamples += ssize*tsize;
2347 // force lightmap upload on first time seeing the surface
2349 // additionally this is used by the later code to see if a
2350 // lightmap is needed on this surface (rather than duplicating the
2352 surface->cached_dlight = true;
2356 // small maps (such as ammo boxes especially) don't need big lightmap
2357 // textures, so this code tries to guess a good size based on
2358 // totallightmapsamples (size of the lightmaps lump basically), as well as
2359 // trying to max out the gl_max_size if there is a lot of lightmap data to
2361 // additionally, never choose a lightmapsize that is smaller than the
2362 // largest surface encountered (as it would fail)
2363 // and finally, limit it to the size of our lineused array
2365 for (lightmapsize = 64;lightmapsize < LIGHTMAPSIZE && (lightmapsize < i || (lightmapsize < gl_max_size.integer && totallightmapsamples*2 > lightmapsize*lightmapsize));lightmapsize*=2)
2368 // now that we've decided the lightmap texture size, we can do the rest
2369 if (cls.state != ca_dedicated)
2371 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2373 // check if we should apply a lightmap to this
2374 if (surface->cached_dlight)
2376 int i, iu, iv, lightmapx, lightmapy;
2377 float u, v, ubase, vbase, uscale, vscale;
2379 smax = surface->lightmapinfo->extents[0] >> 4;
2380 tmax = surface->lightmapinfo->extents[1] >> 4;
2381 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2382 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2384 // stainmap for permanent marks on walls
2385 surface->lightmapinfo->stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2387 memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
2389 // find a place for this lightmap
2390 if (!lightmaptexture || !Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, lightmapsize, lightmapsize, ssize, tsize, &lightmapx, &lightmapy))
2392 // allocate a texture pool if we need it
2393 if (loadmodel->texturepool == NULL)
2394 loadmodel->texturepool = R_AllocTexturePool();
2395 // could not find room, make a new lightmap
2396 lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%i", lightmapnumber), lightmapsize, lightmapsize, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2397 if (loadmodel->brushq1.nmaplightdata)
2398 deluxemaptexture = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%i", lightmapnumber), lightmapsize, lightmapsize, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2400 memset(lightmap_lineused, 0, sizeof(lightmap_lineused));
2401 Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, lightmapsize, lightmapsize, ssize, tsize, &lightmapx, &lightmapy);
2404 surface->lightmaptexture = lightmaptexture;
2405 surface->deluxemaptexture = deluxemaptexture;
2406 surface->lightmapinfo->lightmaporigin[0] = lightmapx;
2407 surface->lightmapinfo->lightmaporigin[1] = lightmapy;
2409 uscale = 1.0f / (float)lightmapsize;
2410 vscale = 1.0f / (float)lightmapsize;
2411 ubase = lightmapx * uscale;
2412 vbase = lightmapy * vscale;
2414 for (i = 0;i < surface->num_vertices;i++)
2416 u = ((DotProduct(((loadmodel->surfmesh.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);
2417 v = ((DotProduct(((loadmodel->surfmesh.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);
2418 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
2419 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
2420 // LordHavoc: calc lightmap data offset for vertex lighting to use
2423 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
2430 static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
2433 // Host_Error("Mod_Q1BSP_LoadNodes_RecursiveSetParent: runaway recursion");
2434 node->parent = parent;
2437 // this is a node, recurse to children
2438 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
2439 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
2440 // combine supercontents of children
2441 node->combinedsupercontents = node->children[0]->combinedsupercontents | node->children[1]->combinedsupercontents;
2446 mleaf_t *leaf = (mleaf_t *)node;
2447 // if this is a leaf, calculate supercontents mask from all collidable
2448 // primitives in the leaf (brushes and collision surfaces)
2449 // also flag if the leaf contains any collision surfaces
2450 leaf->combinedsupercontents = 0;
2451 // combine the supercontents values of all brushes in this leaf
2452 for (j = 0;j < leaf->numleafbrushes;j++)
2453 leaf->combinedsupercontents |= loadmodel->brush.data_brushes[leaf->firstleafbrush[j]].texture->supercontents;
2454 // check if this leaf contains any collision surfaces (q3 patches)
2455 for (j = 0;j < leaf->numleafsurfaces;j++)
2457 msurface_t *surface = loadmodel->data_surfaces + leaf->firstleafsurface[j];
2458 if (surface->num_collisiontriangles)
2460 leaf->containscollisionsurfaces = true;
2461 leaf->combinedsupercontents |= surface->texture->supercontents;
2467 static void Mod_Q1BSP_LoadNodes(lump_t *l)
2473 in = (dnode_t *)(mod_base + l->fileofs);
2474 if (l->filelen % sizeof(*in))
2475 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
2476 count = l->filelen / sizeof(*in);
2477 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2479 loadmodel->brush.data_nodes = out;
2480 loadmodel->brush.num_nodes = count;
2482 for ( i=0 ; i<count ; i++, in++, out++)
2484 for (j=0 ; j<3 ; j++)
2486 out->mins[j] = LittleShort(in->mins[j]);
2487 out->maxs[j] = LittleShort(in->maxs[j]);
2490 p = LittleLong(in->planenum);
2491 out->plane = loadmodel->brush.data_planes + p;
2493 out->firstsurface = (unsigned short)LittleShort(in->firstface);
2494 out->numsurfaces = (unsigned short)LittleShort(in->numfaces);
2496 for (j=0 ; j<2 ; j++)
2498 // LordHavoc: this code supports broken bsp files produced by
2499 // arguire qbsp which can produce more than 32768 nodes, any value
2500 // below count is assumed to be a node number, any other value is
2501 // assumed to be a leaf number
2502 p = (unsigned short)LittleShort(in->children[j]);
2505 if (p < loadmodel->brush.num_nodes)
2506 out->children[j] = loadmodel->brush.data_nodes + p;
2509 Con_Printf("Mod_Q1BSP_LoadNodes: invalid node index %i (file has only %i nodes)\n", p, loadmodel->brush.num_nodes);
2510 // map it to the solid leaf
2511 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
2516 // note this uses 65535 intentionally, -1 is leaf 0
2518 if (p < loadmodel->brush.num_leafs)
2519 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + p);
2522 Con_Printf("Mod_Q1BSP_LoadNodes: invalid leaf index %i (file has only %i leafs)\n", p, loadmodel->brush.num_leafs);
2523 // map it to the solid leaf
2524 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
2530 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
2533 static void Mod_Q1BSP_LoadLeafs(lump_t *l)
2539 in = (dleaf_t *)(mod_base + l->fileofs);
2540 if (l->filelen % sizeof(*in))
2541 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2542 count = l->filelen / sizeof(*in);
2543 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2545 loadmodel->brush.data_leafs = out;
2546 loadmodel->brush.num_leafs = count;
2547 // get visleafs from the submodel data
2548 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2549 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2550 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2551 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2553 for ( i=0 ; i<count ; i++, in++, out++)
2555 for (j=0 ; j<3 ; j++)
2557 out->mins[j] = LittleShort(in->mins[j]);
2558 out->maxs[j] = LittleShort(in->maxs[j]);
2561 // FIXME: this function could really benefit from some error checking
2563 out->contents = LittleLong(in->contents);
2565 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + (unsigned short)LittleShort(in->firstmarksurface);
2566 out->numleafsurfaces = (unsigned short)LittleShort(in->nummarksurfaces);
2567 if (out->firstleafsurface < 0 || (unsigned short)LittleShort(in->firstmarksurface) + out->numleafsurfaces > loadmodel->brush.num_leafsurfaces)
2569 Con_Printf("Mod_Q1BSP_LoadLeafs: invalid leafsurface range %i:%i outside range %i:%i\n", (int)(out->firstleafsurface - loadmodel->brush.data_leafsurfaces), (int)(out->firstleafsurface + out->numleafsurfaces - loadmodel->brush.data_leafsurfaces), 0, loadmodel->brush.num_leafsurfaces);
2570 out->firstleafsurface = NULL;
2571 out->numleafsurfaces = 0;
2574 out->clusterindex = i - 1;
2575 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
2576 out->clusterindex = -1;
2578 p = LittleLong(in->visofs);
2579 // ignore visofs errors on leaf 0 (solid)
2580 if (p >= 0 && out->clusterindex >= 0)
2582 if (p >= loadmodel->brushq1.num_compressedpvs)
2583 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
2585 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);
2588 for (j = 0;j < 4;j++)
2589 out->ambient_sound_level[j] = in->ambient_level[j];
2591 // FIXME: Insert caustics here
2595 qboolean Mod_Q1BSP_CheckWaterAlphaSupport(void)
2599 const unsigned char *pvs;
2600 // check all liquid leafs to see if they can see into empty leafs, if any
2601 // can we can assume this map supports r_wateralpha
2602 for (i = 0, leaf = loadmodel->brush.data_leafs;i < loadmodel->brush.num_leafs;i++, leaf++)
2604 if ((leaf->contents == CONTENTS_WATER || leaf->contents == CONTENTS_SLIME) && (leaf->clusterindex >= 0 && loadmodel->brush.data_pvsclusters))
2606 pvs = loadmodel->brush.data_pvsclusters + leaf->clusterindex * loadmodel->brush.num_pvsclusterbytes;
2607 for (j = 0;j < loadmodel->brush.num_leafs;j++)
2608 if (CHECKPVSBIT(pvs, loadmodel->brush.data_leafs[j].clusterindex) && loadmodel->brush.data_leafs[j].contents == CONTENTS_EMPTY)
2615 static void Mod_Q1BSP_LoadClipnodes(lump_t *l, hullinfo_t *hullinfo)
2622 in = (dclipnode_t *)(mod_base + l->fileofs);
2623 if (l->filelen % sizeof(*in))
2624 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
2625 count = l->filelen / sizeof(*in);
2626 out = (mclipnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2628 loadmodel->brushq1.clipnodes = out;
2629 loadmodel->brushq1.numclipnodes = count;
2631 for (i = 1; i < hullinfo->numhulls; i++)
2633 hull = &loadmodel->brushq1.hulls[i];
2634 hull->clipnodes = out;
2635 hull->firstclipnode = 0;
2636 hull->lastclipnode = count-1;
2637 hull->planes = loadmodel->brush.data_planes;
2638 hull->clip_mins[0] = hullinfo->hullsizes[i][0][0];
2639 hull->clip_mins[1] = hullinfo->hullsizes[i][0][1];
2640 hull->clip_mins[2] = hullinfo->hullsizes[i][0][2];
2641 hull->clip_maxs[0] = hullinfo->hullsizes[i][1][0];
2642 hull->clip_maxs[1] = hullinfo->hullsizes[i][1][1];
2643 hull->clip_maxs[2] = hullinfo->hullsizes[i][1][2];
2644 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2647 for (i=0 ; i<count ; i++, out++, in++)
2649 out->planenum = LittleLong(in->planenum);
2650 // LordHavoc: this code supports arguire qbsp's broken clipnodes indices (more than 32768 clipnodes), values above count are assumed to be contents values
2651 out->children[0] = (unsigned short)LittleShort(in->children[0]);
2652 out->children[1] = (unsigned short)LittleShort(in->children[1]);
2653 if (out->children[0] >= count)
2654 out->children[0] -= 65536;
2655 if (out->children[1] >= count)
2656 out->children[1] -= 65536;
2657 if (out->planenum < 0 || out->planenum >= loadmodel->brush.num_planes)
2658 Host_Error("Corrupt clipping hull(out of range planenum)");
2662 //Duplicate the drawing hull structure as a clipping hull
2663 static void Mod_Q1BSP_MakeHull0(void)
2670 hull = &loadmodel->brushq1.hulls[0];
2672 in = loadmodel->brush.data_nodes;
2673 out = (mclipnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(*out));
2675 hull->clipnodes = out;
2676 hull->firstclipnode = 0;
2677 hull->lastclipnode = loadmodel->brush.num_nodes - 1;
2678 hull->planes = loadmodel->brush.data_planes;
2680 for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
2682 out->planenum = in->plane - loadmodel->brush.data_planes;
2683 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
2684 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
2688 static void Mod_Q1BSP_LoadLeaffaces(lump_t *l)
2693 in = (short *)(mod_base + l->fileofs);
2694 if (l->filelen % sizeof(*in))
2695 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
2696 loadmodel->brush.num_leafsurfaces = l->filelen / sizeof(*in);
2697 loadmodel->brush.data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
2699 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
2701 j = (unsigned short) LittleShort(in[i]);
2702 if (j >= loadmodel->num_surfaces)
2703 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
2704 loadmodel->brush.data_leafsurfaces[i] = j;
2708 static void Mod_Q1BSP_LoadSurfedges(lump_t *l)
2713 in = (int *)(mod_base + l->fileofs);
2714 if (l->filelen % sizeof(*in))
2715 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
2716 loadmodel->brushq1.numsurfedges = l->filelen / sizeof(*in);
2717 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
2719 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
2720 loadmodel->brushq1.surfedges[i] = LittleLong(in[i]);
2724 static void Mod_Q1BSP_LoadPlanes(lump_t *l)
2730 in = (dplane_t *)(mod_base + l->fileofs);
2731 if (l->filelen % sizeof(*in))
2732 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
2734 loadmodel->brush.num_planes = l->filelen / sizeof(*in);
2735 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
2737 for (i = 0;i < loadmodel->brush.num_planes;i++, in++, out++)
2739 out->normal[0] = LittleFloat(in->normal[0]);
2740 out->normal[1] = LittleFloat(in->normal[1]);
2741 out->normal[2] = LittleFloat(in->normal[2]);
2742 out->dist = LittleFloat(in->dist);
2748 static void Mod_Q1BSP_LoadMapBrushes(void)
2752 int submodel, numbrushes;
2753 qboolean firstbrush;
2754 char *text, *maptext;
2755 char mapfilename[MAX_QPATH];
2756 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
2757 strlcat (mapfilename, ".map", sizeof (mapfilename));
2758 maptext = (unsigned char*) FS_LoadFile(mapfilename, tempmempool, false, NULL);
2762 if (!COM_ParseToken_Simple(&data, false, false))
2767 if (!COM_ParseToken_Simple(&data, false, false))
2769 if (com_token[0] != '{')
2775 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
2778 if (!COM_ParseToken_Simple(&data, false, false))
2780 if (com_token[0] == '}')
2781 break; // end of entity
2782 if (com_token[0] == '{')
2789 if (submodel > loadmodel->brush.numsubmodels)
2791 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
2795 model = loadmodel->brush.submodels[submodel];
2802 if (!COM_ParseToken_Simple(&data, false, false))
2804 if (com_token[0] == '}')
2805 break; // end of brush
2806 // each brush face should be this format:
2807 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
2808 // FIXME: support hl .map format
2809 for (pointnum = 0;pointnum < 3;pointnum++)
2811 COM_ParseToken_Simple(&data, false, false);
2812 for (componentnum = 0;componentnum < 3;componentnum++)
2814 COM_ParseToken_Simple(&data, false, false);
2815 point[pointnum][componentnum] = atof(com_token);
2817 COM_ParseToken_Simple(&data, false, false);
2819 COM_ParseToken_Simple(&data, false, false);
2820 strlcpy(facetexture, com_token, sizeof(facetexture));
2821 COM_ParseToken_Simple(&data, false, false);
2822 //scroll_s = atof(com_token);
2823 COM_ParseToken_Simple(&data, false, false);
2824 //scroll_t = atof(com_token);
2825 COM_ParseToken_Simple(&data, false, false);
2826 //rotate = atof(com_token);
2827 COM_ParseToken_Simple(&data, false, false);
2828 //scale_s = atof(com_token);
2829 COM_ParseToken_Simple(&data, false, false);
2830 //scale_t = atof(com_token);
2831 TriangleNormal(point[0], point[1], point[2], planenormal);
2832 VectorNormalizeDouble(planenormal);
2833 planedist = DotProduct(point[0], planenormal);
2834 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
2844 #define MAX_PORTALPOINTS 64
2846 typedef struct portal_s
2849 mnode_t *nodes[2]; // [0] = front side of plane
2850 struct portal_s *next[2];
2852 double points[3*MAX_PORTALPOINTS];
2853 struct portal_s *chain; // all portals are linked into a list
2857 static portal_t *portalchain;
2864 static portal_t *AllocPortal(void)
2867 p = (portal_t *)Mem_Alloc(loadmodel->mempool, sizeof(portal_t));
2868 p->chain = portalchain;
2873 static void FreePortal(portal_t *p)
2878 static void Mod_Q1BSP_RecursiveRecalcNodeBBox(mnode_t *node)
2880 // process only nodes (leafs already had their box calculated)
2884 // calculate children first
2885 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[0]);
2886 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[1]);
2888 // make combined bounding box from children
2889 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
2890 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
2891 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
2892 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
2893 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
2894 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
2897 static void Mod_Q1BSP_FinalizePortals(void)
2899 int i, j, numportals, numpoints;
2900 portal_t *p, *pnext;
2903 mleaf_t *leaf, *endleaf;
2905 // tally up portal and point counts and recalculate bounding boxes for all
2906 // leafs (because qbsp is very sloppy)
2907 leaf = loadmodel->brush.data_leafs;
2908 endleaf = leaf + loadmodel->brush.num_leafs;
2909 for (;leaf < endleaf;leaf++)
2911 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
2912 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
2919 // note: this check must match the one below or it will usually corrupt memory
2920 // 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
2921 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2924 numpoints += p->numpoints * 2;
2928 loadmodel->brush.data_portals = (mportal_t *)Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
2929 loadmodel->brush.num_portals = numportals;
2930 loadmodel->brush.data_portalpoints = (mvertex_t *)((unsigned char *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
2931 loadmodel->brush.num_portalpoints = numpoints;
2932 // clear all leaf portal chains
2933 for (i = 0;i < loadmodel->brush.num_leafs;i++)
2934 loadmodel->brush.data_leafs[i].portals = NULL;
2935 // process all portals in the global portal chain, while freeing them
2936 portal = loadmodel->brush.data_portals;
2937 point = loadmodel->brush.data_portalpoints;
2944 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1])
2946 // note: this check must match the one above or it will usually corrupt memory
2947 // 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
2948 if (((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2950 // first make the back to front portal(forward portal)
2951 portal->points = point;
2952 portal->numpoints = p->numpoints;
2953 portal->plane.dist = p->plane.dist;
2954 VectorCopy(p->plane.normal, portal->plane.normal);
2955 portal->here = (mleaf_t *)p->nodes[1];
2956 portal->past = (mleaf_t *)p->nodes[0];
2958 for (j = 0;j < portal->numpoints;j++)
2960 VectorCopy(p->points + j*3, point->position);
2963 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2964 PlaneClassify(&portal->plane);
2966 // link into leaf's portal chain
2967 portal->next = portal->here->portals;
2968 portal->here->portals = portal;
2970 // advance to next portal
2973 // then make the front to back portal(backward portal)
2974 portal->points = point;
2975 portal->numpoints = p->numpoints;
2976 portal->plane.dist = -p->plane.dist;
2977 VectorNegate(p->plane.normal, portal->plane.normal);
2978 portal->here = (mleaf_t *)p->nodes[0];
2979 portal->past = (mleaf_t *)p->nodes[1];
2981 for (j = portal->numpoints - 1;j >= 0;j--)
2983 VectorCopy(p->points + j*3, point->position);
2986 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2987 PlaneClassify(&portal->plane);
2989 // link into leaf's portal chain
2990 portal->next = portal->here->portals;
2991 portal->here->portals = portal;
2993 // advance to next portal
2996 // add the portal's polygon points to the leaf bounding boxes
2997 for (i = 0;i < 2;i++)
2999 leaf = (mleaf_t *)p->nodes[i];
3000 for (j = 0;j < p->numpoints;j++)
3002 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
3003 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
3004 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
3005 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
3006 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
3007 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
3014 // now recalculate the node bounding boxes from the leafs
3015 Mod_Q1BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes);
3023 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
3026 Host_Error("AddPortalToNodes: NULL front node");
3028 Host_Error("AddPortalToNodes: NULL back node");
3029 if (p->nodes[0] || p->nodes[1])
3030 Host_Error("AddPortalToNodes: already included");
3031 // 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
3033 p->nodes[0] = front;
3034 p->next[0] = (portal_t *)front->portals;
3035 front->portals = (mportal_t *)p;
3038 p->next[1] = (portal_t *)back->portals;
3039 back->portals = (mportal_t *)p;
3044 RemovePortalFromNode
3047 static void RemovePortalFromNodes(portal_t *portal)
3051 void **portalpointer;
3053 for (i = 0;i < 2;i++)
3055 node = portal->nodes[i];
3057 portalpointer = (void **) &node->portals;
3060 t = (portal_t *)*portalpointer;
3062 Host_Error("RemovePortalFromNodes: portal not in leaf");
3066 if (portal->nodes[0] == node)
3068 *portalpointer = portal->next[0];
3069 portal->nodes[0] = NULL;
3071 else if (portal->nodes[1] == node)
3073 *portalpointer = portal->next[1];
3074 portal->nodes[1] = NULL;
3077 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
3081 if (t->nodes[0] == node)
3082 portalpointer = (void **) &t->next[0];
3083 else if (t->nodes[1] == node)
3084 portalpointer = (void **) &t->next[1];
3086 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
3091 #define PORTAL_DIST_EPSILON (1.0 / 32.0)
3092 static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
3095 mnode_t *front, *back, *other_node;
3096 mplane_t clipplane, *plane;
3097 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
3098 int numfrontpoints, numbackpoints;
3099 double frontpoints[3*MAX_PORTALPOINTS], backpoints[3*MAX_PORTALPOINTS];
3101 // if a leaf, we're done
3105 plane = node->plane;
3107 front = node->children[0];
3108 back = node->children[1];
3110 Host_Error("Mod_Q1BSP_RecursiveNodePortals: corrupt node hierarchy");
3112 // create the new portal by generating a polygon for the node plane,
3113 // and clipping it by all of the other portals(which came from nodes above this one)
3114 nodeportal = AllocPortal();
3115 nodeportal->plane = *plane;
3117 // TODO: calculate node bounding boxes during recursion and calculate a maximum plane size accordingly to improve precision (as most maps do not need 1 billion unit plane polygons)
3118 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);
3119 nodeportal->numpoints = 4;
3120 side = 0; // shut up compiler warning
3121 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
3123 clipplane = portal->plane;
3124 if (portal->nodes[0] == portal->nodes[1])
3125 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(1)");
3126 if (portal->nodes[0] == node)
3128 else if (portal->nodes[1] == node)
3130 clipplane.dist = -clipplane.dist;
3131 VectorNegate(clipplane.normal, clipplane.normal);
3135 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
3137 for (i = 0;i < nodeportal->numpoints*3;i++)
3138 frontpoints[i] = nodeportal->points[i];
3139 PolygonD_Divide(nodeportal->numpoints, frontpoints, clipplane.normal[0], clipplane.normal[1], clipplane.normal[2], clipplane.dist, PORTAL_DIST_EPSILON, MAX_PORTALPOINTS, nodeportal->points, &nodeportal->numpoints, 0, NULL, NULL, NULL);
3140 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
3144 if (nodeportal->numpoints < 3)
3146 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
3147 nodeportal->numpoints = 0;
3149 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
3151 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
3152 nodeportal->numpoints = 0;
3155 AddPortalToNodes(nodeportal, front, back);
3157 // split the portals of this node along this node's plane and assign them to the children of this node
3158 // (migrating the portals downward through the tree)
3159 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
3161 if (portal->nodes[0] == portal->nodes[1])
3162 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(2)");
3163 if (portal->nodes[0] == node)
3165 else if (portal->nodes[1] == node)
3168 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
3169 nextportal = portal->next[side];
3170 if (!portal->numpoints)
3173 other_node = portal->nodes[!side];
3174 RemovePortalFromNodes(portal);
3176 // cut the portal into two portals, one on each side of the node plane
3177 PolygonD_Divide(portal->numpoints, portal->points, plane->normal[0], plane->normal[1], plane->normal[2], plane->dist, PORTAL_DIST_EPSILON, MAX_PORTALPOINTS, frontpoints, &numfrontpoints, MAX_PORTALPOINTS, backpoints, &numbackpoints, NULL);
3179 if (!numfrontpoints)
3182 AddPortalToNodes(portal, back, other_node);
3184 AddPortalToNodes(portal, other_node, back);
3190 AddPortalToNodes(portal, front, other_node);
3192 AddPortalToNodes(portal, other_node, front);
3196 // the portal is split
3197 splitportal = AllocPortal();
3198 temp = splitportal->chain;
3199 *splitportal = *portal;
3200 splitportal->chain = temp;
3201 for (i = 0;i < numbackpoints*3;i++)
3202 splitportal->points[i] = backpoints[i];
3203 splitportal->numpoints = numbackpoints;
3204 for (i = 0;i < numfrontpoints*3;i++)
3205 portal->points[i] = frontpoints[i];
3206 portal->numpoints = numfrontpoints;
3210 AddPortalToNodes(portal, front, other_node);
3211 AddPortalToNodes(splitportal, back, other_node);
3215 AddPortalToNodes(portal, other_node, front);
3216 AddPortalToNodes(splitportal, other_node, back);
3220 Mod_Q1BSP_RecursiveNodePortals(front);
3221 Mod_Q1BSP_RecursiveNodePortals(back);
3224 static void Mod_Q1BSP_MakePortals(void)
3227 Mod_Q1BSP_RecursiveNodePortals(loadmodel->brush.data_nodes);
3228 Mod_Q1BSP_FinalizePortals();
3231 static void Mod_Q1BSP_BuildLightmapUpdateChains(mempool_t *mempool, model_t *model)
3233 int i, j, stylecounts[256], totalcount, remapstyles[256];
3234 msurface_t *surface;
3235 memset(stylecounts, 0, sizeof(stylecounts));
3236 for (i = 0;i < model->nummodelsurfaces;i++)
3238 surface = model->data_surfaces + model->firstmodelsurface + i;
3239 for (j = 0;j < MAXLIGHTMAPS;j++)
3240 stylecounts[surface->lightmapinfo->styles[j]]++;
3243 model->brushq1.light_styles = 0;
3244 for (i = 0;i < 255;i++)
3248 remapstyles[i] = model->brushq1.light_styles++;
3249 totalcount += stylecounts[i] + 1;
3254 model->brushq1.light_style = (unsigned char *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(unsigned char));
3255 model->brushq1.light_stylevalue = (int *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(int));
3256 model->brushq1.light_styleupdatechains = (msurface_t ***)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(msurface_t **));
3257 model->brushq1.light_styleupdatechainsbuffer = (msurface_t **)Mem_Alloc(mempool, totalcount * sizeof(msurface_t *));
3258 model->brushq1.light_styles = 0;
3259 for (i = 0;i < 255;i++)
3261 model->brushq1.light_style[model->brushq1.light_styles++] = i;
3263 for (i = 0;i < model->brushq1.light_styles;i++)
3265 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
3266 j += stylecounts[model->brushq1.light_style[i]] + 1;
3268 for (i = 0;i < model->nummodelsurfaces;i++)
3270 surface = model->data_surfaces + model->firstmodelsurface + i;
3271 for (j = 0;j < MAXLIGHTMAPS;j++)
3272 if (surface->lightmapinfo->styles[j] != 255)
3273 *model->brushq1.light_styleupdatechains[remapstyles[surface->lightmapinfo->styles[j]]]++ = surface;
3276 for (i = 0;i < model->brushq1.light_styles;i++)
3278 *model->brushq1.light_styleupdatechains[i] = NULL;
3279 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
3280 j += stylecounts[model->brushq1.light_style[i]] + 1;
3284 //Returns PVS data for a given point
3285 //(note: can return NULL)
3286 static unsigned char *Mod_Q1BSP_GetPVS(model_t *model, const vec3_t p)
3289 node = model->brush.data_nodes;
3291 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
3292 if (((mleaf_t *)node)->clusterindex >= 0)
3293 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3298 static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
3302 float d = PlaneDiff(org, node->plane);
3304 node = node->children[0];
3305 else if (d < -radius)
3306 node = node->children[1];
3309 // go down both sides
3310 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
3311 node = node->children[1];
3314 // if this leaf is in a cluster, accumulate the pvs bits
3315 if (((mleaf_t *)node)->clusterindex >= 0)
3318 unsigned char *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3319 for (i = 0;i < pvsbytes;i++)
3320 pvsbuffer[i] |= pvs[i];
3324 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
3325 //of the given point.
3326 static int Mod_Q1BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength, qboolean merge)
3328 int bytes = model->brush.num_pvsclusterbytes;
3329 bytes = min(bytes, pvsbufferlength);
3330 if (r_novis.integer || !model->brush.num_pvsclusters || !Mod_Q1BSP_GetPVS(model, org))
3332 memset(pvsbuffer, 0xFF, bytes);
3336 memset(pvsbuffer, 0, bytes);
3337 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes);
3341 static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
3346 VectorSubtract(inmaxs, inmins, size);
3347 if (cmodel->brush.ismcbsp)
3350 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3351 else if (size[2] < 48) // pick the nearest of 40 or 56
3352 hull = &cmodel->brushq1.hulls[2]; // 16x16x40
3354 hull = &cmodel->brushq1.hulls[1]; // 16x16x56
3356 else if (cmodel->brush.ishlbsp)
3359 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3360 else if (size[0] <= 32)
3362 if (size[2] < 54) // pick the nearest of 36 or 72
3363 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
3365 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
3368 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
3373 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3374 else if (size[0] <= 32)
3375 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
3377 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
3379 VectorCopy(inmins, outmins);
3380 VectorAdd(inmins, hull->clip_size, outmaxs);
3383 void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
3388 mempool_t *mainmempool;
3389 float dist, modelyawradius, modelradius, *vec;
3390 msurface_t *surface;
3391 int numshadowmeshtriangles;
3393 hullinfo_t hullinfo;
3395 mod->modeldatatypestring = "Q1BSP";
3397 mod->type = mod_brushq1;
3399 if (!memcmp (buffer, "MCBSPpad", 8))
3401 unsigned char *index;
3403 mod->brush.ismcbsp = true;
3404 mod->brush.ishlbsp = false;
3406 mod_base = (unsigned char*)buffer;
3410 i = SB_ReadInt (&index);
3411 if (i != MCBSPVERSION)
3412 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i)", mod->name, i, MCBSPVERSION);
3415 hullinfo.numhulls = SB_ReadInt (&index);
3416 hullinfo.filehulls = hullinfo.numhulls;
3417 mod->brushq1.numhulls = hullinfo.numhulls;
3419 VectorClear (hullinfo.hullsizes[0][0]);
3420 VectorClear (hullinfo.hullsizes[0][1]);
3421 for (i = 1; i < hullinfo.numhulls; i++)
3423 hullinfo.hullsizes[i][0][0] = SB_ReadFloat (&index);
3424 hullinfo.hullsizes[i][0][1] = SB_ReadFloat (&index);
3425 hullinfo.hullsizes[i][0][2] = SB_ReadFloat (&index);
3426 hullinfo.hullsizes[i][1][0] = SB_ReadFloat (&index);
3427 hullinfo.hullsizes[i][1][1] = SB_ReadFloat (&index);
3428 hullinfo.hullsizes[i][1][2] = SB_ReadFloat (&index);
3432 _header.version = 0;
3433 for (i = 0; i < HEADER_LUMPS; i++)
3435 _header.lumps[i].fileofs = SB_ReadInt (&index);
3436 _header.lumps[i].filelen = SB_ReadInt (&index);
3443 header = (dheader_t *)buffer;
3445 i = LittleLong(header->version);
3446 if (i != BSPVERSION && i != 30)
3447 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i(Quake) or 30(HalfLife)", mod->name, i, BSPVERSION);
3448 mod->brush.ishlbsp = i == 30;
3449 mod->brush.ismcbsp = false;
3451 // fill in hull info
3452 VectorClear (hullinfo.hullsizes[0][0]);
3453 VectorClear (hullinfo.hullsizes[0][1]);
3454 if (mod->brush.ishlbsp)
3456 mod->modeldatatypestring = "HLBSP";
3458 hullinfo.numhulls = 4;
3459 hullinfo.filehulls = 4;
3460 mod->brushq1.numhulls = 4;
3461 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
3462 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
3463 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
3464 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
3465 VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
3466 VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
3470 hullinfo.numhulls = 3;
3471 hullinfo.filehulls = 4;
3472 mod->brushq1.numhulls = 3;
3473 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
3474 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
3475 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
3476 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
3480 mod_base = (unsigned char*)buffer;
3481 for (i = 0; i < HEADER_LUMPS; i++)
3483 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
3484 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
3488 mod->soundfromcenter = true;
3489 mod->TraceBox = Mod_Q1BSP_TraceBox;
3490 mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
3491 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3492 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3493 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
3494 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
3495 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
3496 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
3497 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
3498 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
3499 mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
3500 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
3501 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3502 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3503 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
3505 if (loadmodel->isworldmodel)
3507 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3508 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3513 mod->brush.qw_md4sum = 0;
3514 mod->brush.qw_md4sum2 = 0;
3515 for (i = 0;i < HEADER_LUMPS;i++)
3517 if (i == LUMP_ENTITIES)
3519 mod->brush.qw_md4sum ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3520 if (i == LUMP_VISIBILITY || i == LUMP_LEAFS || i == LUMP_NODES)
3522 mod->brush.qw_md4sum2 ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3525 Mod_Q1BSP_LoadEntities(&header->lumps[LUMP_ENTITIES]);
3526 Mod_Q1BSP_LoadVertexes(&header->lumps[LUMP_VERTEXES]);
3527 Mod_Q1BSP_LoadEdges(&header->lumps[LUMP_EDGES]);
3528 Mod_Q1BSP_LoadSurfedges(&header->lumps[LUMP_SURFEDGES]);
3529 Mod_Q1BSP_LoadTextures(&header->lumps[LUMP_TEXTURES]);
3530 Mod_Q1BSP_LoadLighting(&header->lumps[LUMP_LIGHTING]);
3531 Mod_Q1BSP_LoadPlanes(&header->lumps[LUMP_PLANES]);
3532 Mod_Q1BSP_LoadTexinfo(&header->lumps[LUMP_TEXINFO]);
3533 Mod_Q1BSP_LoadFaces(&header->lumps[LUMP_FACES]);
3534 Mod_Q1BSP_LoadLeaffaces(&header->lumps[LUMP_MARKSURFACES]);
3535 Mod_Q1BSP_LoadVisibility(&header->lumps[LUMP_VISIBILITY]);
3536 // load submodels before leafs because they contain the number of vis leafs
3537 Mod_Q1BSP_LoadSubmodels(&header->lumps[LUMP_MODELS], &hullinfo);
3538 Mod_Q1BSP_LoadLeafs(&header->lumps[LUMP_LEAFS]);
3539 Mod_Q1BSP_LoadNodes(&header->lumps[LUMP_NODES]);
3540 Mod_Q1BSP_LoadClipnodes(&header->lumps[LUMP_CLIPNODES], &hullinfo);
3542 // check if the map supports transparent water rendering
3543 loadmodel->brush.supportwateralpha = Mod_Q1BSP_CheckWaterAlphaSupport();
3545 if (mod->brushq1.data_compressedpvs)
3546 Mem_Free(mod->brushq1.data_compressedpvs);
3547 mod->brushq1.data_compressedpvs = NULL;
3548 mod->brushq1.num_compressedpvs = 0;
3550 Mod_Q1BSP_MakeHull0();
3551 Mod_Q1BSP_MakePortals();
3553 mod->numframes = 2; // regular and alternate animation
3556 mainmempool = mod->mempool;
3558 // make a single combined shadow mesh to allow optimized shadow volume creation
3559 numshadowmeshtriangles = 0;
3560 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3562 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
3563 numshadowmeshtriangles += surface->num_triangles;
3565 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
3566 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3567 Mod_ShadowMesh_AddMesh(loadmodel->mempool, loadmodel->brush.shadowmesh, NULL, NULL, NULL, loadmodel->surfmesh.data_vertex3f, NULL, NULL, NULL, NULL, surface->num_triangles, (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
3568 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true, false);
3569 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
3571 if (loadmodel->brush.numsubmodels)
3572 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
3574 if (loadmodel->isworldmodel)
3576 // clear out any stale submodels or worldmodels lying around
3577 // if we did this clear before now, an error might abort loading and
3578 // leave things in a bad state
3579 Mod_RemoveStaleWorldModels(loadmodel);
3582 // LordHavoc: to clear the fog around the original quake submodel code, I
3584 // first of all, some background info on the submodels:
3585 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
3586 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
3587 // now the weird for loop itself:
3588 // the loop functions in an odd way, on each iteration it sets up the
3589 // current 'mod' model (which despite the confusing code IS the model of
3590 // the number i), at the end of the loop it duplicates the model to become
3591 // the next submodel, and loops back to set up the new submodel.
3593 // LordHavoc: now the explanation of my sane way (which works identically):
3594 // set up the world model, then on each submodel copy from the world model
3595 // and set up the submodel with the respective model info.
3596 for (i = 0;i < mod->brush.numsubmodels;i++)
3598 // LordHavoc: this code was originally at the end of this loop, but
3599 // has been transformed to something more readable at the start here.
3604 // LordHavoc: only register submodels if it is the world
3605 // (prevents external bsp models from replacing world submodels with
3607 if (!loadmodel->isworldmodel)
3609 // duplicate the basic information
3610 sprintf(name, "*%i", i);
3611 mod = Mod_FindName(name);
3612 // copy the base model to this one
3614 // rename the clone back to its proper name
3615 strlcpy(mod->name, name, sizeof(mod->name));
3616 // textures and memory belong to the main model
3617 mod->texturepool = NULL;
3618 mod->mempool = NULL;
3621 mod->brush.submodel = i;
3623 if (loadmodel->brush.submodels)
3624 loadmodel->brush.submodels[i] = mod;
3626 bm = &mod->brushq1.submodels[i];
3628 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
3629 for (j=1 ; j<MAX_MAP_HULLS ; j++)
3631 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
3632 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
3635 mod->firstmodelsurface = bm->firstface;
3636 mod->nummodelsurfaces = bm->numfaces;
3638 // make the model surface list (used by shadowing/lighting)
3639 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
3640 for (j = 0;j < mod->nummodelsurfaces;j++)
3641 mod->surfacelist[j] = mod->firstmodelsurface + j;
3643 // this gets altered below if sky or water is used
3644 mod->DrawSky = NULL;
3645 mod->DrawAddWaterPlanes = NULL;
3646 mod->Draw = R_Q1BSP_Draw;
3647 mod->DrawDepth = R_Q1BSP_DrawDepth;
3648 mod->DrawDebug = R_Q1BSP_DrawDebug;
3649 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
3650 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
3651 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
3652 mod->DrawLight = R_Q1BSP_DrawLight;
3655 mod->brush.TraceLineOfSight = NULL;
3656 mod->brush.GetPVS = NULL;
3657 mod->brush.FatPVS = NULL;
3658 mod->brush.BoxTouchingPVS = NULL;
3659 mod->brush.BoxTouchingLeafPVS = NULL;
3660 mod->brush.BoxTouchingVisibleLeafs = NULL;
3661 mod->brush.FindBoxClusters = NULL;
3662 mod->brush.LightPoint = NULL;
3663 mod->brush.AmbientSoundLevelsForPoint = NULL;
3665 Mod_Q1BSP_BuildLightmapUpdateChains(loadmodel->mempool, mod);
3666 if (mod->nummodelsurfaces)
3668 // LordHavoc: calculate bmodel bounding box rather than trusting what it says
3669 mod->normalmins[0] = mod->normalmins[1] = mod->normalmins[2] = 1000000000.0f;
3670 mod->normalmaxs[0] = mod->normalmaxs[1] = mod->normalmaxs[2] = -1000000000.0f;
3673 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
3675 // we only need to have a drawsky function if it is used(usually only on world model)
3676 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
3677 mod->DrawSky = R_Q1BSP_DrawSky;
3678 if (surface->texture->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION))
3679 mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
3680 // calculate bounding shapes
3681 for (k = 0, vec = (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex);k < surface->num_vertices;k++, vec += 3)
3683 if (mod->normalmins[0] > vec[0]) mod->normalmins[0] = vec[0];
3684 if (mod->normalmins[1] > vec[1]) mod->normalmins[1] = vec[1];
3685 if (mod->normalmins[2] > vec[2]) mod->normalmins[2] = vec[2];
3686 if (mod->normalmaxs[0] < vec[0]) mod->normalmaxs[0] = vec[0];
3687 if (mod->normalmaxs[1] < vec[1]) mod->normalmaxs[1] = vec[1];
3688 if (mod->normalmaxs[2] < vec[2]) mod->normalmaxs[2] = vec[2];
3689 dist = vec[0]*vec[0]+vec[1]*vec[1];
3690 if (modelyawradius < dist)
3691 modelyawradius = dist;
3692 dist += vec[2]*vec[2];
3693 if (modelradius < dist)
3697 modelyawradius = sqrt(modelyawradius);
3698 modelradius = sqrt(modelradius);
3699 mod->yawmins[0] = mod->yawmins[1] = - (mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius);
3700 mod->yawmins[2] = mod->normalmins[2];
3701 mod->yawmaxs[2] = mod->normalmaxs[2];
3702 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
3703 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
3704 mod->radius = modelradius;
3705 mod->radius2 = modelradius * modelradius;
3709 // LordHavoc: empty submodel(lacrima.bsp has such a glitch)
3710 Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
3712 //mod->brushq1.num_visleafs = bm->visleafs;
3715 Mod_Q1BSP_LoadMapBrushes();
3717 //Mod_Q1BSP_ProcessLightList();
3719 if (developer.integer >= 10)
3720 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);
3723 static void Mod_Q2BSP_LoadEntities(lump_t *l)
3727 static void Mod_Q2BSP_LoadPlanes(lump_t *l)
3734 in = (void *)(mod_base + l->fileofs);
3735 if (l->filelen % sizeof(*in))
3736 Host_Error("Mod_Q2BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
3737 count = l->filelen / sizeof(*in);
3738 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3741 loadmodel->num = count;
3743 for (i = 0;i < count;i++, in++, out++)
3749 static void Mod_Q2BSP_LoadVertices(lump_t *l)
3756 in = (void *)(mod_base + l->fileofs);
3757 if (l->filelen % sizeof(*in))
3758 Host_Error("Mod_Q2BSP_LoadVertices: funny lump size in %s",loadmodel->name);
3759 count = l->filelen / sizeof(*in);
3760 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3763 loadmodel->num = count;
3765 for (i = 0;i < count;i++, in++, out++)
3771 static void Mod_Q2BSP_LoadVisibility(lump_t *l)
3778 in = (void *)(mod_base + l->fileofs);
3779 if (l->filelen % sizeof(*in))
3780 Host_Error("Mod_Q2BSP_LoadVisibility: funny lump size in %s",loadmodel->name);
3781 count = l->filelen / sizeof(*in);
3782 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3785 loadmodel->num = count;
3787 for (i = 0;i < count;i++, in++, out++)
3793 static void Mod_Q2BSP_LoadNodes(lump_t *l)
3800 in = (void *)(mod_base + l->fileofs);
3801 if (l->filelen % sizeof(*in))
3802 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
3803 count = l->filelen / sizeof(*in);
3804 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3807 loadmodel->num = count;
3809 for (i = 0;i < count;i++, in++, out++)
3815 static void Mod_Q2BSP_LoadTexInfo(lump_t *l)
3822 in = (void *)(mod_base + l->fileofs);
3823 if (l->filelen % sizeof(*in))
3824 Host_Error("Mod_Q2BSP_LoadTexInfo: funny lump size in %s",loadmodel->name);
3825 count = l->filelen / sizeof(*in);
3826 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3829 loadmodel->num = count;
3831 for (i = 0;i < count;i++, in++, out++)
3837 static void Mod_Q2BSP_LoadFaces(lump_t *l)
3844 in = (void *)(mod_base + l->fileofs);
3845 if (l->filelen % sizeof(*in))
3846 Host_Error("Mod_Q2BSP_LoadFaces: funny lump size in %s",loadmodel->name);
3847 count = l->filelen / sizeof(*in);
3848 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3851 loadmodel->num = count;
3853 for (i = 0;i < count;i++, in++, out++)
3859 static void Mod_Q2BSP_LoadLighting(lump_t *l)
3866 in = (void *)(mod_base + l->fileofs);
3867 if (l->filelen % sizeof(*in))
3868 Host_Error("Mod_Q2BSP_LoadLighting: funny lump size in %s",loadmodel->name);
3869 count = l->filelen / sizeof(*in);
3870 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3873 loadmodel->num = count;
3875 for (i = 0;i < count;i++, in++, out++)
3881 static void Mod_Q2BSP_LoadLeafs(lump_t *l)
3888 in = (void *)(mod_base + l->fileofs);
3889 if (l->filelen % sizeof(*in))
3890 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
3891 count = l->filelen / sizeof(*in);
3892 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3895 loadmodel->num = count;
3897 for (i = 0;i < count;i++, in++, out++)
3903 static void Mod_Q2BSP_LoadLeafFaces(lump_t *l)
3910 in = (void *)(mod_base + l->fileofs);
3911 if (l->filelen % sizeof(*in))
3912 Host_Error("Mod_Q2BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
3913 count = l->filelen / sizeof(*in);
3914 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3917 loadmodel->num = count;
3919 for (i = 0;i < count;i++, in++, out++)
3925 static void Mod_Q2BSP_LoadLeafBrushes(lump_t *l)
3932 in = (void *)(mod_base + l->fileofs);
3933 if (l->filelen % sizeof(*in))
3934 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
3935 count = l->filelen / sizeof(*in);
3936 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3939 loadmodel->num = count;
3941 for (i = 0;i < count;i++, in++, out++)
3947 static void Mod_Q2BSP_LoadEdges(lump_t *l)
3954 in = (void *)(mod_base + l->fileofs);
3955 if (l->filelen % sizeof(*in))
3956 Host_Error("Mod_Q2BSP_LoadEdges: funny lump size in %s",loadmodel->name);
3957 count = l->filelen / sizeof(*in);
3958 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3961 loadmodel->num = count;
3963 for (i = 0;i < count;i++, in++, out++)
3969 static void Mod_Q2BSP_LoadSurfEdges(lump_t *l)
3976 in = (void *)(mod_base + l->fileofs);
3977 if (l->filelen % sizeof(*in))
3978 Host_Error("Mod_Q2BSP_LoadSurfEdges: funny lump size in %s",loadmodel->name);
3979 count = l->filelen / sizeof(*in);
3980 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3983 loadmodel->num = count;
3985 for (i = 0;i < count;i++, in++, out++)
3991 static void Mod_Q2BSP_LoadBrushes(lump_t *l)
3998 in = (void *)(mod_base + l->fileofs);
3999 if (l->filelen % sizeof(*in))
4000 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4001 count = l->filelen / sizeof(*in);
4002 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4005 loadmodel->num = count;
4007 for (i = 0;i < count;i++, in++, out++)
4013 static void Mod_Q2BSP_LoadBrushSides(lump_t *l)
4020 in = (void *)(mod_base + l->fileofs);
4021 if (l->filelen % sizeof(*in))
4022 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4023 count = l->filelen / sizeof(*in);
4024 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4027 loadmodel->num = count;
4029 for (i = 0;i < count;i++, in++, out++)
4035 static void Mod_Q2BSP_LoadAreas(lump_t *l)
4042 in = (void *)(mod_base + l->fileofs);
4043 if (l->filelen % sizeof(*in))
4044 Host_Error("Mod_Q2BSP_LoadAreas: funny lump size in %s",loadmodel->name);
4045 count = l->filelen / sizeof(*in);
4046 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4049 loadmodel->num = count;
4051 for (i = 0;i < count;i++, in++, out++)
4057 static void Mod_Q2BSP_LoadAreaPortals(lump_t *l)
4064 in = (void *)(mod_base + l->fileofs);
4065 if (l->filelen % sizeof(*in))
4066 Host_Error("Mod_Q2BSP_LoadAreaPortals: funny lump size in %s",loadmodel->name);
4067 count = l->filelen / sizeof(*in);
4068 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4071 loadmodel->num = count;
4073 for (i = 0;i < count;i++, in++, out++)
4079 static void Mod_Q2BSP_LoadModels(lump_t *l)
4086 in = (void *)(mod_base + l->fileofs);
4087 if (l->filelen % sizeof(*in))
4088 Host_Error("Mod_Q2BSP_LoadModels: funny lump size in %s",loadmodel->name);
4089 count = l->filelen / sizeof(*in);
4090 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4093 loadmodel->num = count;
4095 for (i = 0;i < count;i++, in++, out++)
4101 void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
4104 q2dheader_t *header;
4106 Host_Error("Mod_Q2BSP_Load: not yet implemented");
4108 mod->modeldatatypestring = "Q2BSP";
4110 mod->type = mod_brushq2;
4112 header = (q2dheader_t *)buffer;
4114 i = LittleLong(header->version);
4115 if (i != Q2BSPVERSION)
4116 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
4117 mod->brush.ishlbsp = false;
4118 mod->brush.ismcbsp = false;
4119 if (loadmodel->isworldmodel)
4121 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
4122 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
4125 mod_base = (unsigned char *)header;
4127 // swap all the lumps
4128 for (i = 0;i < (int) sizeof(*header) / 4;i++)
4129 ((int *)header)[i] = LittleLong(((int *)header)[i]);
4131 mod->brush.qw_md4sum = 0;
4132 mod->brush.qw_md4sum2 = 0;
4133 for (i = 0;i < Q2HEADER_LUMPS;i++)
4135 if (i == Q2LUMP_ENTITIES)
4137 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
4138 if (i == Q2LUMP_VISIBILITY || i == Q2LUMP_LEAFS || i == Q2LUMP_NODES)
4140 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
4143 Mod_Q2BSP_LoadEntities(&header->lumps[Q2LUMP_ENTITIES]);
4144 Mod_Q2BSP_LoadPlanes(&header->lumps[Q2LUMP_PLANES]);
4145 Mod_Q2BSP_LoadVertices(&header->lumps[Q2LUMP_VERTEXES]);
4146 Mod_Q2BSP_LoadVisibility(&header->lumps[Q2LUMP_VISIBILITY]);
4147 Mod_Q2BSP_LoadNodes(&header->lumps[Q2LUMP_NODES]);
4148 Mod_Q2BSP_LoadTexInfo(&header->lumps[Q2LUMP_TEXINFO]);
4149 Mod_Q2BSP_LoadFaces(&header->lumps[Q2LUMP_FACES]);
4150 Mod_Q2BSP_LoadLighting(&header->lumps[Q2LUMP_LIGHTING]);
4151 Mod_Q2BSP_LoadLeafs(&header->lumps[Q2LUMP_LEAFS]);
4152 Mod_Q2BSP_LoadLeafFaces(&header->lumps[Q2LUMP_LEAFFACES]);
4153 Mod_Q2BSP_LoadLeafBrushes(&header->lumps[Q2LUMP_LEAFBRUSHES]);
4154 Mod_Q2BSP_LoadEdges(&header->lumps[Q2LUMP_EDGES]);
4155 Mod_Q2BSP_LoadSurfEdges(&header->lumps[Q2LUMP_SURFEDGES]);
4156 Mod_Q2BSP_LoadBrushes(&header->lumps[Q2LUMP_BRUSHES]);
4157 Mod_Q2BSP_LoadBrushSides(&header->lumps[Q2LUMP_BRUSHSIDES]);
4158 Mod_Q2BSP_LoadAreas(&header->lumps[Q2LUMP_AREAS]);
4159 Mod_Q2BSP_LoadAreaPortals(&header->lumps[Q2LUMP_AREAPORTALS]);
4160 // LordHavoc: must go last because this makes the submodels
4161 Mod_Q2BSP_LoadModels(&header->lumps[Q2LUMP_MODELS]);
4164 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents);
4165 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents);
4167 static void Mod_Q3BSP_LoadEntities(lump_t *l)
4170 char key[128], value[MAX_INPUTLINE];
4172 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
4173 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
4174 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
4177 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
4178 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
4179 data = loadmodel->brush.entities;
4180 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
4181 if (data && COM_ParseToken_Simple(&data, false, false) && com_token[0] == '{')
4185 if (!COM_ParseToken_Simple(&data, false, false))
4187 if (com_token[0] == '}')
4188 break; // end of worldspawn
4189 if (com_token[0] == '_')
4190 strlcpy(key, com_token + 1, sizeof(key));
4192 strlcpy(key, com_token, sizeof(key));
4193 while (key[strlen(key)-1] == ' ') // remove trailing spaces
4194 key[strlen(key)-1] = 0;
4195 if (!COM_ParseToken_Simple(&data, false, false))
4197 strlcpy(value, com_token, sizeof(value));
4198 if (!strcmp("gridsize", key))
4200 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
4201 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
4207 static void Mod_Q3BSP_LoadTextures(lump_t *l)
4213 in = (q3dtexture_t *)(mod_base + l->fileofs);
4214 if (l->filelen % sizeof(*in))
4215 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
4216 count = l->filelen / sizeof(*in);
4217 out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4219 loadmodel->data_textures = out;
4220 loadmodel->num_textures = count;
4221 loadmodel->num_texturesperskin = loadmodel->num_textures;
4223 for (i = 0;i < count;i++)
4225 strlcpy (out[i].name, in[i].name, sizeof (out[i].name));
4226 out[i].surfaceflags = LittleLong(in[i].surfaceflags);
4227 out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in[i].contents));
4230 if (cls.state == ca_dedicated)
4234 for (i = 0;i < count;i++, in++, out++)
4235 if (!Mod_LoadTextureFromQ3Shader(out, out->name, false, true, false))
4238 Con_DPrintf("%s: %i textures missing shaders\n", loadmodel->name, c);
4241 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
4247 in = (q3dplane_t *)(mod_base + l->fileofs);
4248 if (l->filelen % sizeof(*in))
4249 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
4250 count = l->filelen / sizeof(*in);
4251 out = (mplane_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4253 loadmodel->brush.data_planes = out;
4254 loadmodel->brush.num_planes = count;
4256 for (i = 0;i < count;i++, in++, out++)
4258 out->normal[0] = LittleFloat(in->normal[0]);
4259 out->normal[1] = LittleFloat(in->normal[1]);
4260 out->normal[2] = LittleFloat(in->normal[2]);
4261 out->dist = LittleFloat(in->dist);
4266 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
4269 q3mbrushside_t *out;
4272 in = (q3dbrushside_t *)(mod_base + l->fileofs);
4273 if (l->filelen % sizeof(*in))
4274 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4275 count = l->filelen / sizeof(*in);
4276 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4278 loadmodel->brush.data_brushsides = out;
4279 loadmodel->brush.num_brushsides = count;
4281 for (i = 0;i < count;i++, in++, out++)
4283 n = LittleLong(in->planeindex);
4284 if (n < 0 || n >= loadmodel->brush.num_planes)
4285 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
4286 out->plane = loadmodel->brush.data_planes + n;
4287 n = LittleLong(in->textureindex);
4288 if (n < 0 || n >= loadmodel->num_textures)
4289 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4290 out->texture = loadmodel->data_textures + n;
4294 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
4298 int i, j, n, c, count, maxplanes;
4299 colplanef_t *planes;
4301 in = (q3dbrush_t *)(mod_base + l->fileofs);
4302 if (l->filelen % sizeof(*in))
4303 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4304 count = l->filelen / sizeof(*in);
4305 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4307 loadmodel->brush.data_brushes = out;
4308 loadmodel->brush.num_brushes = count;
4313 for (i = 0;i < count;i++, in++, out++)
4315 n = LittleLong(in->firstbrushside);
4316 c = LittleLong(in->numbrushsides);
4317 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
4318 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", n, n + c, loadmodel->brush.num_brushsides);
4319 out->firstbrushside = loadmodel->brush.data_brushsides + n;
4320 out->numbrushsides = c;
4321 n = LittleLong(in->textureindex);
4322 if (n < 0 || n >= loadmodel->num_textures)
4323 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4324 out->texture = loadmodel->data_textures + n;
4326 // make a list of mplane_t structs to construct a colbrush from
4327 if (maxplanes < out->numbrushsides)
4329 maxplanes = out->numbrushsides;
4332 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
4334 for (j = 0;j < out->numbrushsides;j++)
4336 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4337 planes[j].dist = out->firstbrushside[j].plane->dist;
4338 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
4339 planes[j].texture = out->firstbrushside[j].texture;
4341 // make the colbrush from the planes
4342 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents);
4348 static void Mod_Q3BSP_LoadEffects(lump_t *l)
4354 in = (q3deffect_t *)(mod_base + l->fileofs);
4355 if (l->filelen % sizeof(*in))
4356 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
4357 count = l->filelen / sizeof(*in);
4358 out = (q3deffect_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4360 loadmodel->brushq3.data_effects = out;
4361 loadmodel->brushq3.num_effects = count;
4363 for (i = 0;i < count;i++, in++, out++)
4365 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
4366 n = LittleLong(in->brushindex);
4367 if (n >= loadmodel->brush.num_brushes)
4369 Con_Printf("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes), setting to -1\n", n, loadmodel->brush.num_brushes);
4372 out->brushindex = n;
4373 out->unknown = LittleLong(in->unknown);
4377 static void Mod_Q3BSP_LoadVertices(lump_t *l)
4382 in = (q3dvertex_t *)(mod_base + l->fileofs);
4383 if (l->filelen % sizeof(*in))
4384 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
4385 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
4386 loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 3 + 2 + 2 + 4)));
4387 loadmodel->brushq3.data_normal3f = loadmodel->brushq3.data_vertex3f + count * 3;
4388 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_normal3f + count * 3;
4389 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
4390 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
4392 for (i = 0;i < count;i++, in++)
4394 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
4395 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
4396 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
4397 loadmodel->brushq3.data_normal3f[i * 3 + 0] = LittleFloat(in->normal3f[0]);
4398 loadmodel->brushq3.data_normal3f[i * 3 + 1] = LittleFloat(in->normal3f[1]);
4399 loadmodel->brushq3.data_normal3f[i * 3 + 2] = LittleFloat(in->normal3f[2]);
4400 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
4401 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
4402 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
4403 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
4404 // svector/tvector are calculated later in face loading
4405 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
4406 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
4407 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
4408 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
4412 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
4418 in = (int *)(mod_base + l->fileofs);
4419 if (l->filelen % sizeof(int[3]))
4420 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
4421 count = l->filelen / sizeof(*in);
4422 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4424 loadmodel->brushq3.num_triangles = count / 3;
4425 loadmodel->brushq3.data_element3i = out;
4427 for (i = 0;i < count;i++, in++, out++)
4429 *out = LittleLong(*in);
4430 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
4432 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
4438 static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
4441 int i, j, k, count, power, power2, mask, endlightmap, mergewidth, mergeheight;
4443 unsigned char convertedpixels[128*128*4];
4447 if (cls.state == ca_dedicated)
4449 in = (q3dlightmap_t *)(mod_base + l->fileofs);
4450 if (l->filelen % sizeof(*in))
4451 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
4452 count = l->filelen / sizeof(*in);
4453 loadmodel->brushq3.num_originallightmaps = count;
4455 // now check the surfaces to see if any of them index an odd numbered
4456 // lightmap, if so this is not a deluxemapped bsp file
4458 // also check what lightmaps are actually used, because q3map2 sometimes
4459 // (always?) makes an unused one at the end, which
4460 // q3map2 sometimes (or always?) makes a second blank lightmap for no
4461 // reason when only one lightmap is used, which can throw off the
4462 // deluxemapping detection method, so check 2-lightmap bsp's specifically
4463 // to see if the second lightmap is blank, if so it is not deluxemapped.
4464 loadmodel->brushq3.deluxemapping = !(count & 1);
4465 loadmodel->brushq3.deluxemapping_modelspace = true;
4467 if (loadmodel->brushq3.deluxemapping)
4469 int facecount = faceslump->filelen / sizeof(q3dface_t);
4470 q3dface_t *faces = (q3dface_t *)(mod_base + faceslump->fileofs);
4471 for (i = 0;i < facecount;i++)
4473 j = LittleLong(faces[i].lightmapindex);
4476 endlightmap = max(endlightmap, j + 1);
4477 if ((j & 1) || j + 1 >= count)
4479 loadmodel->brushq3.deluxemapping = false;
4485 if (endlightmap < 2)
4486 loadmodel->brushq3.deluxemapping = false;
4488 // q3map2 sometimes (or always?) makes a second blank lightmap for no
4489 // reason when only one lightmap is used, which can throw off the
4490 // deluxemapping detection method, so check 2-lightmap bsp's specifically
4491 // to see if the second lightmap is blank, if so it is not deluxemapped.
4492 if (endlightmap == 1 && count == 2)
4495 for (i = 0;i < 128*128*3;i++)
4500 // all pixels in the unused lightmap were black...
4501 loadmodel->brushq3.deluxemapping = false;
4505 Con_DPrintf("%s is %sdeluxemapped\n", loadmodel->name, loadmodel->brushq3.deluxemapping ? "" : "not ");
4507 // figure out what the most reasonable merge power is within limits
4508 loadmodel->brushq3.num_lightmapmergepower = 0;
4509 for (power = 1;power <= mod_q3bsp_lightmapmergepower.integer && (128 << power) <= gl_max_texture_size && (1 << (power * 2)) < 4 * (count >> loadmodel->brushq3.deluxemapping);power++)
4510 loadmodel->brushq3.num_lightmapmergepower = power;
4511 loadmodel->brushq3.num_lightmapmerge = 1 << loadmodel->brushq3.num_lightmapmergepower;
4513 loadmodel->brushq3.num_mergedlightmaps = ((count >> loadmodel->brushq3.deluxemapping) + (1 << (loadmodel->brushq3.num_lightmapmergepower * 2)) - 1) >> (loadmodel->brushq3.num_lightmapmergepower * 2);
4514 loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4515 if (loadmodel->brushq3.deluxemapping)
4516 loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4518 // allocate a texture pool if we need it
4519 if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
4520 loadmodel->texturepool = R_AllocTexturePool();
4522 power = loadmodel->brushq3.num_lightmapmergepower;
4524 mask = (1 << power) - 1;
4525 for (i = 0;i < count;i++)
4527 // figure out which merged lightmap texture this fits into
4528 int lightmapindex = i >> (loadmodel->brushq3.deluxemapping + power2);
4529 for (k = 0;k < 128*128;k++)
4531 convertedpixels[k*4+2] = in[i].rgb[k*3+0];
4532 convertedpixels[k*4+1] = in[i].rgb[k*3+1];
4533 convertedpixels[k*4+0] = in[i].rgb[k*3+2];
4534 convertedpixels[k*4+3] = 255;
4536 if (loadmodel->brushq3.num_lightmapmergepower > 0)
4538 // if the lightmap has not been allocated yet, create it
4539 if (!loadmodel->brushq3.data_lightmaps[lightmapindex])
4541 // create a lightmap only as large as necessary to hold the
4542 // remaining 128x128 blocks
4543 // if there are multiple merged lightmap textures then they will
4544 // all be full size except the last one which may be smaller
4545 // because it only needs to the remaining blocks, and it will often
4546 // be odd sizes like 2048x512 due to only being 25% full or so.
4547 j = (count >> loadmodel->brushq3.deluxemapping) - (lightmapindex << power2);
4548 for (mergewidth = 1;mergewidth < j && mergewidth < (1 << power);mergewidth *= 2)
4550 for (mergeheight = 1;mergewidth*mergeheight < j && mergeheight < (1 << power);mergeheight *= 2)
4552 Con_DPrintf("lightmap merge texture #%i is %ix%i (%i of %i used)\n", lightmapindex, mergewidth*128, mergeheight*128, min(j, mergewidth*mergeheight), mergewidth*mergeheight);
4553 loadmodel->brushq3.data_lightmaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", lightmapindex), mergewidth * 128, mergeheight * 128, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), NULL);
4554 if (loadmodel->brushq3.data_deluxemaps)
4555 loadmodel->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", lightmapindex), mergewidth * 128, mergeheight * 128, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bspdeluxemaps.integer ? TEXF_COMPRESS : 0), NULL);
4557 mergewidth = R_TextureWidth(loadmodel->brushq3.data_lightmaps[lightmapindex]) / 128;
4558 mergeheight = R_TextureHeight(loadmodel->brushq3.data_lightmaps[lightmapindex]) / 128;
4559 j = (i >> loadmodel->brushq3.deluxemapping) & ((1 << power2) - 1);
4560 if (loadmodel->brushq3.deluxemapping && (i & 1))
4561 R_UpdateTexture(loadmodel->brushq3.data_deluxemaps[lightmapindex], convertedpixels, (j % mergewidth) * 128, (j / mergewidth) * 128, 128, 128);
4563 R_UpdateTexture(loadmodel->brushq3.data_lightmaps [lightmapindex], convertedpixels, (j % mergewidth) * 128, (j / mergewidth) * 128, 128, 128);
4567 // figure out which merged lightmap texture this fits into
4568 if (loadmodel->brushq3.deluxemapping && (i & 1))
4569 loadmodel->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", lightmapindex), 128, 128, convertedpixels, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bspdeluxemaps.integer ? TEXF_COMPRESS : 0), NULL);
4571 loadmodel->brushq3.data_lightmaps [lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", lightmapindex), 128, 128, convertedpixels, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), NULL);
4576 static void Mod_Q3BSP_LoadFaces(lump_t *l)
4578 q3dface_t *in, *oldin;
4579 msurface_t *out, *oldout;
4580 int i, oldi, j, n, count, invalidelements, patchsize[2], finalwidth, finalheight, xtess, ytess, finalvertices, finaltriangles, firstvertex, firstelement, type, oldnumtriangles, oldnumtriangles2, meshvertices, meshtriangles, numvertices, numtriangles;
4581 float lightmaptcbase[2], lightmaptcscale[2];
4582 //int *originalelement3i;
4583 //int *originalneighbor3i;
4584 float *originalvertex3f;
4585 //float *originalsvector3f;
4586 //float *originaltvector3f;
4587 float *originalnormal3f;
4588 float *originalcolor4f;
4589 float *originaltexcoordtexture2f;
4590 float *originaltexcoordlightmap2f;
4593 in = (q3dface_t *)(mod_base + l->fileofs);
4594 if (l->filelen % sizeof(*in))
4595 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
4596 count = l->filelen / sizeof(*in);
4597 out = (msurface_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4599 loadmodel->data_surfaces = out;
4600 loadmodel->num_surfaces = count;
4608 for (;i < count;i++, in++, out++)
4610 // check face type first
4611 type = LittleLong(in->type);
4612 if (type != Q3FACETYPE_POLYGON
4613 && type != Q3FACETYPE_PATCH
4614 && type != Q3FACETYPE_MESH
4615 && type != Q3FACETYPE_FLARE)
4617 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
4621 n = LittleLong(in->textureindex);
4622 if (n < 0 || n >= loadmodel->num_textures)
4624 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
4627 out->texture = loadmodel->data_textures + n;
4628 n = LittleLong(in->effectindex);
4629 if (n < -1 || n >= loadmodel->brushq3.num_effects)
4631 if (developer.integer >= 100)
4632 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
4638 out->effect = loadmodel->brushq3.data_effects + n;
4640 if (cls.state != ca_dedicated)
4642 out->lightmaptexture = NULL;
4643 out->deluxemaptexture = r_texture_blanknormalmap;
4644 n = LittleLong(in->lightmapindex);
4647 else if (n >= loadmodel->brushq3.num_originallightmaps)
4649 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_originallightmaps);
4654 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n >> (loadmodel->brushq3.num_lightmapmergepower * 2 + loadmodel->brushq3.deluxemapping)];
4655 if (loadmodel->brushq3.deluxemapping)
4656 out->deluxemaptexture = loadmodel->brushq3.data_deluxemaps[n >> (loadmodel->brushq3.num_lightmapmergepower * 2 + loadmodel->brushq3.deluxemapping)];
4660 firstvertex = LittleLong(in->firstvertex);
4661 numvertices = LittleLong(in->numvertices);
4662 firstelement = LittleLong(in->firstelement);
4663 numtriangles = LittleLong(in->numelements) / 3;
4664 if (numtriangles * 3 != LittleLong(in->numelements))
4666 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));
4669 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
4671 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);
4674 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
4676 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);
4681 case Q3FACETYPE_POLYGON:
4682 case Q3FACETYPE_MESH:
4683 // no processing necessary
4685 case Q3FACETYPE_PATCH:
4686 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4687 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4688 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))
4690 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
4693 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4694 // convert patch to Q3FACETYPE_MESH
4695 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4696 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4697 // bound to user settings
4698 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4699 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4700 // bound to sanity settings
4701 xtess = bound(1, xtess, 1024);
4702 ytess = bound(1, ytess, 1024);
4703 // bound to user limit on vertices
4704 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4711 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4712 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4713 numvertices = finalwidth * finalheight;
4714 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4716 case Q3FACETYPE_FLARE:
4717 if (developer.integer >= 100)
4718 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
4722 out->num_vertices = numvertices;
4723 out->num_triangles = numtriangles;
4724 meshvertices += out->num_vertices;
4725 meshtriangles += out->num_triangles;
4731 Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true, false);
4734 for (;i < count && meshvertices + out->num_vertices <= loadmodel->surfmesh.num_vertices;i++, in++, out++)
4736 if (out->num_vertices < 3 || out->num_triangles < 1)
4739 type = LittleLong(in->type);
4740 firstvertex = LittleLong(in->firstvertex);
4741 firstelement = LittleLong(in->firstelement);
4742 out->num_firstvertex = meshvertices;
4743 out->num_firsttriangle = meshtriangles;
4746 case Q3FACETYPE_POLYGON:
4747 case Q3FACETYPE_MESH:
4748 // no processing necessary, except for lightmap merging
4749 for (j = 0;j < out->num_vertices;j++)
4751 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
4752 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
4753 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
4754 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 0];
4755 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 1];
4756 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 2];
4757 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
4758 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
4759 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
4760 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
4761 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
4762 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
4763 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
4764 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
4766 for (j = 0;j < out->num_triangles*3;j++)
4767 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
4769 case Q3FACETYPE_PATCH:
4770 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4771 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4772 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4773 originalnormal3f = loadmodel->brushq3.data_normal3f + firstvertex * 3;
4774 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
4775 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
4776 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
4777 // convert patch to Q3FACETYPE_MESH
4778 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4779 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4780 // bound to user settings
4781 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4782 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4783 // bound to sanity settings
4784 xtess = bound(1, xtess, 1024);
4785 ytess = bound(1, ytess, 1024);
4786 // bound to user limit on vertices
4787 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4794 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4795 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4796 finalvertices = finalwidth * finalheight;
4797 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4798 type = Q3FACETYPE_MESH;
4799 // generate geometry
4800 // (note: normals are skipped because they get recalculated)
4801 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4802 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalnormal3f, xtess, ytess);
4803 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
4804 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
4805 Q3PatchTesselateFloat(4, sizeof(float[4]), (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
4806 Q3PatchTriangleElements((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
4807 out->num_triangles = Mod_RemoveDegenerateTriangles(out->num_triangles, (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), loadmodel->surfmesh.data_vertex3f);
4808 if (developer.integer >= 100)
4810 if (out->num_triangles < finaltriangles)
4811 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);
4813 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);
4815 // q3map does not put in collision brushes for curves... ugh
4816 // build the lower quality collision geometry
4817 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4818 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4819 // bound to user settings
4820 xtess = bound(r_subdivisions_collision_mintess.integer, xtess, r_subdivisions_collision_maxtess.integer);
4821 ytess = bound(r_subdivisions_collision_mintess.integer, ytess, r_subdivisions_collision_maxtess.integer);
4822 // bound to sanity settings
4823 xtess = bound(1, xtess, 1024);
4824 ytess = bound(1, ytess, 1024);
4825 // bound to user limit on vertices
4826 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_collision_maxvertices.integer, 262144))
4833 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4834 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4835 finalvertices = finalwidth * finalheight;
4836 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4838 out->data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
4839 out->data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
4840 out->num_collisionvertices = finalvertices;
4841 out->num_collisiontriangles = finaltriangles;
4842 Q3PatchTesselateFloat(3, sizeof(float[3]), out->data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4843 Q3PatchTriangleElements(out->data_collisionelement3i, finalwidth, finalheight, 0);
4845 //Mod_SnapVertices(3, out->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), 0.25);
4846 Mod_SnapVertices(3, out->num_collisionvertices, out->data_collisionvertex3f, 1);
4848 oldnumtriangles = out->num_triangles;
4849 oldnumtriangles2 = out->num_collisiontriangles;
4850 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(out->num_collisiontriangles, out->data_collisionelement3i, out->data_collisionelement3i, out->data_collisionvertex3f);
4851 if (developer.integer >= 100)
4852 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);
4857 meshvertices += out->num_vertices;
4858 meshtriangles += out->num_triangles;
4859 for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
4860 if ((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] < out->num_firstvertex || (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] >= out->num_firstvertex + out->num_vertices)
4862 if (invalidelements)
4864 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);
4865 for (j = 0;j < out->num_triangles * 3;j++)
4867 Con_Printf(" %i", (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
4868 if ((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] < out->num_firstvertex || (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] >= out->num_firstvertex + out->num_vertices)
4869 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
4873 // calculate a bounding box
4874 VectorClear(out->mins);
4875 VectorClear(out->maxs);
4876 if (out->num_vertices)
4878 if (cls.state != ca_dedicated && out->lightmaptexture)
4880 // figure out which part of the merged lightmap this fits into
4881 int lightmapindex = LittleLong(in->lightmapindex) >> loadmodel->brushq3.deluxemapping;
4882 int mergewidth = R_TextureWidth(out->lightmaptexture) / 128;
4883 int mergeheight = R_TextureHeight(out->lightmaptexture) / 128;
4884 lightmapindex &= mergewidth * mergeheight - 1;
4885 lightmaptcscale[0] = 1.0f / mergewidth;
4886 lightmaptcscale[1] = 1.0f / mergeheight;
4887 lightmaptcbase[0] = (lightmapindex % mergewidth) * lightmaptcscale[0];
4888 lightmaptcbase[1] = (lightmapindex / mergewidth) * lightmaptcscale[1];
4889 // modify the lightmap texcoords to match this region of the merged lightmap
4890 for (j = 0, v = loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex;j < out->num_vertices;j++, v += 2)
4892 v[0] = v[0] * lightmaptcscale[0] + lightmaptcbase[0];
4893 v[1] = v[1] * lightmaptcscale[1] + lightmaptcbase[1];
4896 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->mins);
4897 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->maxs);
4898 for (j = 1, v = (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
4900 out->mins[0] = min(out->mins[0], v[0]);
4901 out->maxs[0] = max(out->maxs[0], v[0]);
4902 out->mins[1] = min(out->mins[1], v[1]);
4903 out->maxs[1] = max(out->maxs[1], v[1]);
4904 out->mins[2] = min(out->mins[2], v[2]);
4905 out->maxs[2] = max(out->maxs[2], v[2]);
4907 out->mins[0] -= 1.0f;
4908 out->mins[1] -= 1.0f;
4909 out->mins[2] -= 1.0f;
4910 out->maxs[0] += 1.0f;
4911 out->maxs[1] += 1.0f;
4912 out->maxs[2] += 1.0f;
4914 // set lightmap styles for consistency with q1bsp
4915 //out->lightmapinfo->styles[0] = 0;
4916 //out->lightmapinfo->styles[1] = 255;
4917 //out->lightmapinfo->styles[2] = 255;
4918 //out->lightmapinfo->styles[3] = 255;
4921 // for per pixel lighting
4922 Mod_BuildTextureVectorsFromNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_texcoordtexture2f, loadmodel->surfmesh.data_normal3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_svector3f, loadmodel->surfmesh.data_tvector3f, true);
4924 // free the no longer needed vertex data
4925 loadmodel->brushq3.num_vertices = 0;
4926 if (loadmodel->brushq3.data_vertex3f)
4927 Mem_Free(loadmodel->brushq3.data_vertex3f);
4928 loadmodel->brushq3.data_vertex3f = NULL;
4929 loadmodel->brushq3.data_normal3f = NULL;
4930 loadmodel->brushq3.data_texcoordtexture2f = NULL;
4931 loadmodel->brushq3.data_texcoordlightmap2f = NULL;
4932 loadmodel->brushq3.data_color4f = NULL;
4933 // free the no longer needed triangle data
4934 loadmodel->brushq3.num_triangles = 0;
4935 if (loadmodel->brushq3.data_element3i)
4936 Mem_Free(loadmodel->brushq3.data_element3i);
4937 loadmodel->brushq3.data_element3i = NULL;
4940 static void Mod_Q3BSP_LoadModels(lump_t *l)
4944 int i, j, n, c, count;
4946 in = (q3dmodel_t *)(mod_base + l->fileofs);
4947 if (l->filelen % sizeof(*in))
4948 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
4949 count = l->filelen / sizeof(*in);
4950 out = (q3dmodel_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4952 loadmodel->brushq3.data_models = out;
4953 loadmodel->brushq3.num_models = count;
4955 for (i = 0;i < count;i++, in++, out++)
4957 for (j = 0;j < 3;j++)
4959 out->mins[j] = LittleFloat(in->mins[j]);
4960 out->maxs[j] = LittleFloat(in->maxs[j]);
4962 n = LittleLong(in->firstface);
4963 c = LittleLong(in->numfaces);
4964 if (n < 0 || n + c > loadmodel->num_surfaces)
4965 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)", n, n + c, loadmodel->num_surfaces);
4968 n = LittleLong(in->firstbrush);
4969 c = LittleLong(in->numbrushes);
4970 if (n < 0 || n + c > loadmodel->brush.num_brushes)
4971 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)", n, n + c, loadmodel->brush.num_brushes);
4972 out->firstbrush = n;
4973 out->numbrushes = c;
4977 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
4983 in = (int *)(mod_base + l->fileofs);
4984 if (l->filelen % sizeof(*in))
4985 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
4986 count = l->filelen / sizeof(*in);
4987 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4989 loadmodel->brush.data_leafbrushes = out;
4990 loadmodel->brush.num_leafbrushes = count;
4992 for (i = 0;i < count;i++, in++, out++)
4994 n = LittleLong(*in);
4995 if (n < 0 || n >= loadmodel->brush.num_brushes)
4996 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)", n, loadmodel->brush.num_brushes);
5001 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
5007 in = (int *)(mod_base + l->fileofs);
5008 if (l->filelen % sizeof(*in))
5009 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
5010 count = l->filelen / sizeof(*in);
5011 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5013 loadmodel->brush.data_leafsurfaces = out;
5014 loadmodel->brush.num_leafsurfaces = count;
5016 for (i = 0;i < count;i++, in++, out++)
5018 n = LittleLong(*in);
5019 if (n < 0 || n >= loadmodel->num_surfaces)
5020 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)", n, loadmodel->num_surfaces);
5025 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
5029 int i, j, n, c, count;
5031 in = (q3dleaf_t *)(mod_base + l->fileofs);
5032 if (l->filelen % sizeof(*in))
5033 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
5034 count = l->filelen / sizeof(*in);
5035 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5037 loadmodel->brush.data_leafs = out;
5038 loadmodel->brush.num_leafs = count;
5040 for (i = 0;i < count;i++, in++, out++)
5044 out->clusterindex = LittleLong(in->clusterindex);
5045 out->areaindex = LittleLong(in->areaindex);
5046 for (j = 0;j < 3;j++)
5048 // yes the mins/maxs are ints
5049 out->mins[j] = LittleLong(in->mins[j]) - 1;
5050 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5052 n = LittleLong(in->firstleafface);
5053 c = LittleLong(in->numleaffaces);
5054 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
5055 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)", n, n + c, loadmodel->brush.num_leafsurfaces);
5056 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
5057 out->numleafsurfaces = c;
5058 n = LittleLong(in->firstleafbrush);
5059 c = LittleLong(in->numleafbrushes);
5060 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
5061 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)", n, n + c, loadmodel->brush.num_leafbrushes);
5062 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
5063 out->numleafbrushes = c;
5067 static void Mod_Q3BSP_LoadNodes(lump_t *l)
5073 in = (q3dnode_t *)(mod_base + l->fileofs);
5074 if (l->filelen % sizeof(*in))
5075 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
5076 count = l->filelen / sizeof(*in);
5077 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5079 loadmodel->brush.data_nodes = out;
5080 loadmodel->brush.num_nodes = count;
5082 for (i = 0;i < count;i++, in++, out++)
5085 n = LittleLong(in->planeindex);
5086 if (n < 0 || n >= loadmodel->brush.num_planes)
5087 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5088 out->plane = loadmodel->brush.data_planes + n;
5089 for (j = 0;j < 2;j++)
5091 n = LittleLong(in->childrenindex[j]);
5094 if (n >= loadmodel->brush.num_nodes)
5095 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)", n, loadmodel->brush.num_nodes);
5096 out->children[j] = loadmodel->brush.data_nodes + n;
5101 if (n >= loadmodel->brush.num_leafs)
5102 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)", n, loadmodel->brush.num_leafs);
5103 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
5106 for (j = 0;j < 3;j++)
5108 // yes the mins/maxs are ints
5109 out->mins[j] = LittleLong(in->mins[j]) - 1;
5110 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5114 // set the parent pointers
5115 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
5118 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
5121 q3dlightgrid_t *out;
5124 in = (q3dlightgrid_t *)(mod_base + l->fileofs);
5125 if (l->filelen % sizeof(*in))
5126 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
5127 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
5128 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
5129 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
5130 loadmodel->brushq3.num_lightgrid_imins[0] = (int)ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5131 loadmodel->brushq3.num_lightgrid_imins[1] = (int)ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5132 loadmodel->brushq3.num_lightgrid_imins[2] = (int)ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5133 loadmodel->brushq3.num_lightgrid_imaxs[0] = (int)floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5134 loadmodel->brushq3.num_lightgrid_imaxs[1] = (int)floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5135 loadmodel->brushq3.num_lightgrid_imaxs[2] = (int)floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5136 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
5137 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
5138 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
5139 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
5140 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]);
5141 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]);
5143 // if lump is empty there is nothing to load, we can deal with that in the LightPoint code
5146 if (l->filelen < count * (int)sizeof(*in))
5147 Host_Error("Mod_Q3BSP_LoadLightGrid: invalid lightgrid lump size %i bytes, should be %i bytes (%ix%ix%i)", l->filelen, (int)(count * sizeof(*in)), loadmodel->brushq3.num_lightgrid_dimensions[0], loadmodel->brushq3.num_lightgrid_dimensions[1], loadmodel->brushq3.num_lightgrid_dimensions[2]);
5148 if (l->filelen != count * (int)sizeof(*in))
5149 Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", (int)(count * sizeof(*in)), l->filelen);
5150 out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5151 loadmodel->brushq3.data_lightgrid = out;
5152 loadmodel->brushq3.num_lightgrid = count;
5153 // no swapping or validation necessary
5154 memcpy(out, in, count * (int)sizeof(*out));
5158 static void Mod_Q3BSP_LoadPVS(lump_t *l)
5163 if (l->filelen == 0)
5166 // unvised maps often have cluster indices even without pvs, so check
5167 // leafs to find real number of clusters
5168 loadmodel->brush.num_pvsclusters = 1;
5169 for (i = 0;i < loadmodel->brush.num_leafs;i++)
5170 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
5173 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
5174 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5175 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5176 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
5180 in = (q3dpvs_t *)(mod_base + l->fileofs);
5182 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
5184 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
5185 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
5186 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
5187 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
5188 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5189 if (l->filelen < totalchains + (int)sizeof(*in))
5190 Host_Error("Mod_Q3BSP_LoadPVS: lump too small ((numclusters = %i) * (chainlength = %i) + sizeof(q3dpvs_t) == %i bytes, lump is %i bytes)", loadmodel->brush.num_pvsclusters, loadmodel->brush.num_pvsclusterbytes, (int)(totalchains + sizeof(*in)), l->filelen);
5192 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5193 memcpy(loadmodel->brush.data_pvsclusters, (unsigned char *)(in + 1), totalchains);
5196 static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
5198 int i, j, k, index[3];
5199 float transformed[3], blend1, blend2, blend, stylescale;
5200 q3dlightgrid_t *a, *s;
5202 // scale lighting by lightstyle[0] so that darkmode in dpmod works properly
5203 stylescale = r_refdef.lightstylevalue[0] * (1.0f / 256.0f);
5205 if (!model->brushq3.num_lightgrid)
5207 ambientcolor[0] = stylescale;
5208 ambientcolor[1] = stylescale;
5209 ambientcolor[2] = stylescale;
5213 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
5214 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
5215 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
5216 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
5217 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
5218 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
5219 index[0] = (int)floor(transformed[0]);
5220 index[1] = (int)floor(transformed[1]);
5221 index[2] = (int)floor(transformed[2]);
5222 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
5224 // now lerp the values
5225 VectorClear(diffusenormal);
5226 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
5227 for (k = 0;k < 2;k++)
5229 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
5230 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
5232 for (j = 0;j < 2;j++)
5234 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
5235 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
5237 for (i = 0;i < 2;i++)
5239 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0]))) * stylescale;
5240 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
5242 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
5243 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
5244 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
5245 // this uses the mod_md3_sin table because the values are
5246 // already in the 0-255 range, the 64+ bias fetches a cosine
5247 // instead of a sine value
5248 diffusenormal[0] += blend * (mod_md3_sin[64 + s->diffuseyaw] * mod_md3_sin[s->diffusepitch]);
5249 diffusenormal[1] += blend * (mod_md3_sin[ s->diffuseyaw] * mod_md3_sin[s->diffusepitch]);
5250 diffusenormal[2] += blend * (mod_md3_sin[64 + s->diffusepitch]);
5251 //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)));
5256 // normalize the light direction before turning
5257 VectorNormalize(diffusenormal);
5258 //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]);
5261 static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t point, int markframe)
5266 // find which leaf the point is in
5268 node = node->children[DotProduct(point, node->plane->normal) < node->plane->dist];
5269 // point trace the brushes
5270 leaf = (mleaf_t *)node;
5271 for (i = 0;i < leaf->numleafbrushes;i++)
5273 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5274 if (brush && brush->markframe != markframe && BoxesOverlap(point, point, brush->mins, brush->maxs))
5276 brush->markframe = markframe;
5277 Collision_TracePointBrushFloat(trace, point, brush);
5280 // can't do point traces on curves (they have no thickness)
5283 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)
5285 int i, startside, endside;
5286 float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
5288 msurface_t *surface;
5291 // walk the tree until we hit a leaf, recursing for any split cases
5294 // abort if this part of the bsp tree can not be hit by this trace
5295 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5297 plane = node->plane;
5298 // axial planes are much more common than non-axial, so an optimized
5299 // axial case pays off here
5300 if (plane->type < 3)
5302 dist1 = start[plane->type] - plane->dist;
5303 dist2 = end[plane->type] - plane->dist;
5307 dist1 = DotProduct(start, plane->normal) - plane->dist;
5308 dist2 = DotProduct(end, plane->normal) - plane->dist;
5310 startside = dist1 < 0;
5311 endside = dist2 < 0;
5312 if (startside == endside)
5314 // most of the time the line fragment is on one side of the plane
5315 node = node->children[startside];
5319 // line crosses node plane, split the line
5320 dist1 = PlaneDiff(linestart, plane);
5321 dist2 = PlaneDiff(lineend, plane);
5322 midfrac = dist1 / (dist1 - dist2);
5323 VectorLerp(linestart, midfrac, lineend, mid);
5324 // take the near side first
5325 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5326 // if we found an impact on the front side, don't waste time
5327 // exploring the far side
5328 if (midfrac <= trace->realfraction)
5329 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5333 // abort if this part of the bsp tree can not be hit by this trace
5334 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5337 nodesegmentmins[0] = min(start[0], end[0]) - 1;
5338 nodesegmentmins[1] = min(start[1], end[1]) - 1;
5339 nodesegmentmins[2] = min(start[2], end[2]) - 1;
5340 nodesegmentmaxs[0] = max(start[0], end[0]) + 1;
5341 nodesegmentmaxs[1] = max(start[1], end[1]) + 1;
5342 nodesegmentmaxs[2] = max(start[2], end[2]) + 1;
5343 // line trace the brushes
5344 leaf = (mleaf_t *)node;
5345 for (i = 0;i < leaf->numleafbrushes;i++)
5347 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5348 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5350 brush->markframe = markframe;
5351 Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
5354 // can't do point traces on curves (they have no thickness)
5355 if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
5357 // line trace the curves
5358 for (i = 0;i < leaf->numleafsurfaces;i++)
5360 surface = model->data_surfaces + leaf->firstleafsurface[i];
5361 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5363 surface->collisionmarkframe = markframe;
5364 Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5370 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)
5376 msurface_t *surface;
5378 float nodesegmentmins[3], nodesegmentmaxs[3];
5379 // walk the tree until we hit a leaf, recursing for any split cases
5382 // abort if this part of the bsp tree can not be hit by this trace
5383 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5385 plane = node->plane;
5386 // axial planes are much more common than non-axial, so an optimized
5387 // axial case pays off here
5388 if (plane->type < 3)
5390 // this is an axial plane, compare bounding box directly to it and
5391 // recurse sides accordingly
5392 // recurse down node sides
5393 // use an inlined axial BoxOnPlaneSide to slightly reduce overhead
5394 //sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, plane);
5395 //sides = ((segmentmaxs[plane->type] >= plane->dist) | ((segmentmins[plane->type] < plane->dist) << 1));
5396 sides = ((segmentmaxs[plane->type] >= plane->dist) + ((segmentmins[plane->type] < plane->dist) * 2));
5400 // this is a non-axial plane, so check if the start and end boxes
5401 // are both on one side of the plane to handle 'diagonal' cases
5402 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, plane);
5406 // segment crosses plane
5407 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5410 // if sides == 0 then the trace itself is bogus (Not A Number values),
5411 // in this case we simply pretend the trace hit nothing
5413 return; // ERROR: NAN bounding box!
5414 // take whichever side the segment box is on
5415 node = node->children[sides - 1];
5417 // abort if this part of the bsp tree can not be hit by this trace
5418 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5420 nodesegmentmins[0] = max(segmentmins[0], node->mins[0] - 1);
5421 nodesegmentmins[1] = max(segmentmins[1], node->mins[1] - 1);
5422 nodesegmentmins[2] = max(segmentmins[2], node->mins[2] - 1);
5423 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0] + 1);
5424 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1] + 1);
5425 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2] + 1);
5427 leaf = (mleaf_t *)node;
5428 for (i = 0;i < leaf->numleafbrushes;i++)
5430 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5431 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5433 brush->markframe = markframe;
5434 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
5437 if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer)
5439 for (i = 0;i < leaf->numleafsurfaces;i++)
5441 surface = model->data_surfaces + leaf->firstleafsurface[i];
5442 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5444 surface->collisionmarkframe = markframe;
5445 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5451 static void Mod_Q3BSP_TraceBox(model_t *model, int frame, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
5454 float segmentmins[3], segmentmaxs[3];
5455 static int markframe = 0;
5456 msurface_t *surface;
5458 memset(trace, 0, sizeof(*trace));
5459 trace->fraction = 1;
5460 trace->realfraction = 1;
5461 trace->hitsupercontentsmask = hitsupercontentsmask;
5462 if (mod_q3bsp_optimizedtraceline.integer && VectorLength2(boxmins) + VectorLength2(boxmaxs) == 0)
5464 if (VectorCompare(start, end))
5467 if (model->brush.submodel)
5469 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5470 if (brush->colbrushf)
5471 Collision_TracePointBrushFloat(trace, start, brush->colbrushf);
5474 Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, ++markframe);
5479 segmentmins[0] = min(start[0], end[0]) - 1;
5480 segmentmins[1] = min(start[1], end[1]) - 1;
5481 segmentmins[2] = min(start[2], end[2]) - 1;
5482 segmentmaxs[0] = max(start[0], end[0]) + 1;
5483 segmentmaxs[1] = max(start[1], end[1]) + 1;
5484 segmentmaxs[2] = max(start[2], end[2]) + 1;
5485 if (model->brush.submodel)
5487 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5488 if (brush->colbrushf)
5489 Collision_TraceLineBrushFloat(trace, start, end, brush->colbrushf, brush->colbrushf);
5490 if (mod_q3bsp_curves_collisions.integer)
5491 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5492 if (surface->num_collisiontriangles)
5493 Collision_TraceLineTriangleMeshFloat(trace, start, end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5496 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, end, 0, 1, start, end, ++markframe, segmentmins, segmentmaxs);
5501 // box trace, performed as brush trace
5502 colbrushf_t *thisbrush_start, *thisbrush_end;
5503 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
5504 segmentmins[0] = min(start[0], end[0]) + boxmins[0] - 1;
5505 segmentmins[1] = min(start[1], end[1]) + boxmins[1] - 1;
5506 segmentmins[2] = min(start[2], end[2]) + boxmins[2] - 1;
5507 segmentmaxs[0] = max(start[0], end[0]) + boxmaxs[0] + 1;
5508 segmentmaxs[1] = max(start[1], end[1]) + boxmaxs[1] + 1;
5509 segmentmaxs[2] = max(start[2], end[2]) + boxmaxs[2] + 1;
5510 VectorAdd(start, boxmins, boxstartmins);
5511 VectorAdd(start, boxmaxs, boxstartmaxs);
5512 VectorAdd(end, boxmins, boxendmins);
5513 VectorAdd(end, boxmaxs, boxendmaxs);
5514 thisbrush_start = Collision_BrushForBox(&identitymatrix, boxstartmins, boxstartmaxs, 0, 0, NULL);
5515 thisbrush_end = Collision_BrushForBox(&identitymatrix, boxendmins, boxendmaxs, 0, 0, NULL);
5516 if (model->brush.submodel)
5518 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5519 if (brush->colbrushf)
5520 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush->colbrushf, brush->colbrushf);
5521 if (mod_q3bsp_curves_collisions.integer)
5522 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5523 if (surface->num_collisiontriangles)
5524 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5527 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, model->brush.data_nodes, thisbrush_start, thisbrush_end, ++markframe, segmentmins, segmentmaxs);
5531 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
5533 int supercontents = 0;
5534 if (nativecontents & CONTENTSQ3_SOLID)
5535 supercontents |= SUPERCONTENTS_SOLID;
5536 if (nativecontents & CONTENTSQ3_WATER)
5537 supercontents |= SUPERCONTENTS_WATER;
5538 if (nativecontents & CONTENTSQ3_SLIME)
5539 supercontents |= SUPERCONTENTS_SLIME;
5540 if (nativecontents & CONTENTSQ3_LAVA)
5541 supercontents |= SUPERCONTENTS_LAVA;
5542 if (nativecontents & CONTENTSQ3_BODY)
5543 supercontents |= SUPERCONTENTS_BODY;
5544 if (nativecontents & CONTENTSQ3_CORPSE)
5545 supercontents |= SUPERCONTENTS_CORPSE;
5546 if (nativecontents & CONTENTSQ3_NODROP)
5547 supercontents |= SUPERCONTENTS_NODROP;
5548 if (nativecontents & CONTENTSQ3_PLAYERCLIP)
5549 supercontents |= SUPERCONTENTS_PLAYERCLIP;
5550 if (nativecontents & CONTENTSQ3_MONSTERCLIP)
5551 supercontents |= SUPERCONTENTS_MONSTERCLIP;
5552 if (nativecontents & CONTENTSQ3_DONOTENTER)
5553 supercontents |= SUPERCONTENTS_DONOTENTER;
5554 return supercontents;
5557 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
5559 int nativecontents = 0;
5560 if (supercontents & SUPERCONTENTS_SOLID)
5561 nativecontents |= CONTENTSQ3_SOLID;
5562 if (supercontents & SUPERCONTENTS_WATER)
5563 nativecontents |= CONTENTSQ3_WATER;
5564 if (supercontents & SUPERCONTENTS_SLIME)
5565 nativecontents |= CONTENTSQ3_SLIME;
5566 if (supercontents & SUPERCONTENTS_LAVA)
5567 nativecontents |= CONTENTSQ3_LAVA;
5568 if (supercontents & SUPERCONTENTS_BODY)
5569 nativecontents |= CONTENTSQ3_BODY;
5570 if (supercontents & SUPERCONTENTS_CORPSE)
5571 nativecontents |= CONTENTSQ3_CORPSE;
5572 if (supercontents & SUPERCONTENTS_NODROP)
5573 nativecontents |= CONTENTSQ3_NODROP;
5574 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
5575 nativecontents |= CONTENTSQ3_PLAYERCLIP;
5576 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
5577 nativecontents |= CONTENTSQ3_MONSTERCLIP;
5578 if (supercontents & SUPERCONTENTS_DONOTENTER)
5579 nativecontents |= CONTENTSQ3_DONOTENTER;
5580 return nativecontents;
5583 void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
5588 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
5589 node = node->children[1];
5591 numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
5592 if (loadmodel->brush.num_leafs < numleafs)
5593 loadmodel->brush.num_leafs = numleafs;
5596 void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
5598 int i, j, numshadowmeshtriangles;
5599 q3dheader_t *header;
5600 float corner[3], yawradius, modelradius;
5601 msurface_t *surface;
5603 mod->modeldatatypestring = "Q3BSP";
5605 mod->type = mod_brushq3;
5606 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
5609 header = (q3dheader_t *)buffer;
5611 i = LittleLong(header->version);
5612 if (i != Q3BSPVERSION)
5613 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
5614 mod->brush.ishlbsp = false;
5615 mod->brush.ismcbsp = false;
5616 if (loadmodel->isworldmodel)
5618 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
5619 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
5622 mod->soundfromcenter = true;
5623 mod->TraceBox = Mod_Q3BSP_TraceBox;
5624 mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
5625 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
5626 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
5627 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
5628 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
5629 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
5630 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
5631 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
5632 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
5633 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
5634 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5635 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
5636 mod->Draw = R_Q1BSP_Draw;
5637 mod->DrawDepth = R_Q1BSP_DrawDepth;
5638 mod->DrawDebug = R_Q1BSP_DrawDebug;
5639 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
5640 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
5641 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
5642 mod->DrawLight = R_Q1BSP_DrawLight;
5643 mod->DrawAddWaterPlanes = NULL;
5645 mod_base = (unsigned char *)header;
5647 // swap all the lumps
5648 header->ident = LittleLong(header->ident);
5649 header->version = LittleLong(header->version);
5650 for (i = 0;i < Q3HEADER_LUMPS;i++)
5652 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
5653 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
5656 mod->brush.qw_md4sum = 0;
5657 mod->brush.qw_md4sum2 = 0;
5658 for (i = 0;i < Q3HEADER_LUMPS;i++)
5660 if (i == Q3LUMP_ENTITIES)
5662 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
5663 if (i == Q3LUMP_PVS || i == Q3LUMP_LEAFS || i == Q3LUMP_NODES)
5665 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
5668 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
5669 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
5670 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
5671 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
5672 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
5673 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
5674 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
5675 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
5676 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS], &header->lumps[Q3LUMP_FACES]);
5677 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
5678 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
5679 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
5680 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
5681 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
5682 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
5683 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
5684 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
5685 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
5687 // the MakePortals code works fine on the q3bsp data as well
5688 Mod_Q1BSP_MakePortals();
5690 // FIXME: shader alpha should replace r_wateralpha support in q3bsp
5691 loadmodel->brush.supportwateralpha = true;
5693 // make a single combined shadow mesh to allow optimized shadow volume creation
5694 numshadowmeshtriangles = 0;
5695 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5697 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
5698 numshadowmeshtriangles += surface->num_triangles;
5700 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
5701 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5702 if (surface->num_triangles > 0)
5703 Mod_ShadowMesh_AddMesh(loadmodel->mempool, loadmodel->brush.shadowmesh, NULL, NULL, NULL, loadmodel->surfmesh.data_vertex3f, NULL, NULL, NULL, NULL, surface->num_triangles, (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
5704 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true, false);
5705 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
5707 loadmodel->brush.num_leafs = 0;
5708 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
5710 if (loadmodel->isworldmodel)
5712 // clear out any stale submodels or worldmodels lying around
5713 // if we did this clear before now, an error might abort loading and
5714 // leave things in a bad state
5715 Mod_RemoveStaleWorldModels(loadmodel);
5719 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
5724 // LordHavoc: only register submodels if it is the world
5725 // (prevents external bsp models from replacing world submodels with
5727 if (!loadmodel->isworldmodel)
5729 // duplicate the basic information
5730 sprintf(name, "*%i", i);
5731 mod = Mod_FindName(name);
5733 strlcpy(mod->name, name, sizeof(mod->name));
5734 // textures and memory belong to the main model
5735 mod->texturepool = NULL;
5736 mod->mempool = NULL;
5737 mod->brush.TraceLineOfSight = NULL;
5738 mod->brush.GetPVS = NULL;
5739 mod->brush.FatPVS = NULL;
5740 mod->brush.BoxTouchingPVS = NULL;
5741 mod->brush.BoxTouchingLeafPVS = NULL;
5742 mod->brush.BoxTouchingVisibleLeafs = NULL;
5743 mod->brush.FindBoxClusters = NULL;
5744 mod->brush.LightPoint = NULL;
5745 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5747 mod->brush.submodel = i;
5749 // make the model surface list (used by shadowing/lighting)
5750 mod->firstmodelsurface = mod->brushq3.data_models[i].firstface;
5751 mod->nummodelsurfaces = mod->brushq3.data_models[i].numfaces;
5752 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
5753 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
5754 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
5755 for (j = 0;j < mod->nummodelsurfaces;j++)
5756 mod->surfacelist[j] = mod->firstmodelsurface + j;
5758 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
5759 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
5760 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
5761 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
5762 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
5763 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
5764 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
5765 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
5766 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
5767 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
5768 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
5769 mod->yawmins[2] = mod->normalmins[2];
5770 mod->yawmaxs[2] = mod->normalmaxs[2];
5771 mod->radius = modelradius;
5772 mod->radius2 = modelradius * modelradius;
5774 for (j = 0;j < mod->nummodelsurfaces;j++)
5775 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->basematerialflags & MATERIALFLAG_SKY)
5777 if (j < mod->nummodelsurfaces)
5778 mod->DrawSky = R_Q1BSP_DrawSky;
5780 mod->DrawSky = NULL;
5782 for (j = 0;j < mod->nummodelsurfaces;j++)
5783 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION))
5785 if (j < mod->nummodelsurfaces)
5786 mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
5788 mod->DrawAddWaterPlanes = NULL;
5792 void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
5794 int i = LittleLong(((int *)buffer)[1]);
5795 if (i == Q3BSPVERSION)
5796 Mod_Q3BSP_Load(mod,buffer, bufferend);
5797 else if (i == Q2BSPVERSION)
5798 Mod_Q2BSP_Load(mod,buffer, bufferend);
5800 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i", i);
5803 void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend)
5805 Host_Error("Mod_MAP_Load: not yet implemented");
5808 qboolean Mod_CanSeeBox_Trace(int numsamples, float t, model_t *model, vec3_t eye, vec3_t minsX, vec3_t maxsX)
5810 // we already have done PVS culling at this point...
5811 // so we don't need to do it again.
5814 vec3_t testorigin, mins, maxs;
5816 testorigin[0] = (minsX[0] + maxsX[0]) * 0.5;
5817 testorigin[1] = (minsX[1] + maxsX[1]) * 0.5;
5818 testorigin[2] = (minsX[2] + maxsX[2]) * 0.5;
5820 if(model->brush.TraceLineOfSight(model, eye, testorigin))
5823 // expand the box a little
5824 mins[0] = (t+1) * minsX[0] - t * maxsX[0];
5825 maxs[0] = (t+1) * maxsX[0] - t * minsX[0];
5826 mins[1] = (t+1) * minsX[1] - t * maxsX[1];
5827 maxs[1] = (t+1) * maxsX[1] - t * minsX[1];
5828 mins[2] = (t+1) * minsX[2] - t * maxsX[2];
5829 maxs[2] = (t+1) * maxsX[2] - t * minsX[2];
5831 for(i = 0; i != numsamples; ++i)
5833 testorigin[0] = lhrandom(mins[0], maxs[0]);
5834 testorigin[1] = lhrandom(mins[1], maxs[1]);
5835 testorigin[2] = lhrandom(mins[2], maxs[2]);
5837 if(model->brush.TraceLineOfSight(model, eye, testorigin))