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 r_novis = {0, "r_novis", "0", "draws whole level, see also sv_cullentities_pvs 0"};
31 cvar_t r_picmipworld = {CVAR_SAVE, "r_picmipworld", "1", "whether gl_picmip shall apply to world textures too"};
32 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)"};
33 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)"};
34 cvar_t r_subdivisions_mintess = {0, "r_subdivisions_mintess", "0", "minimum number of subdivisions (values above 0 will smooth curves that don't need it)"};
35 cvar_t r_subdivisions_maxtess = {0, "r_subdivisions_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
36 cvar_t r_subdivisions_maxvertices = {0, "r_subdivisions_maxvertices", "65536", "maximum vertices allowed per subdivided curve"};
37 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)"};
38 cvar_t r_subdivisions_collision_mintess = {0, "r_subdivisions_collision_mintess", "0", "minimum number of subdivisions (values above 0 will smooth curves that don't need it)"};
39 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)"};
40 cvar_t r_subdivisions_collision_maxvertices = {0, "r_subdivisions_collision_maxvertices", "4225", "maximum vertices allowed per subdivided curve"};
41 cvar_t mod_q3bsp_curves_collisions = {0, "mod_q3bsp_curves_collisions", "1", "enables collisions with curves (SLOW)"};
42 cvar_t mod_q3bsp_curves_collisions_stride = {0, "mod_q3bsp_curves_collisions_stride", "16", "collisions against curves: optimize performance by doing a combined collision check for this triangle amount first (-1 avoids any box tests)"};
43 cvar_t mod_q3bsp_curves_stride = {0, "mod_q3bsp_curves_stride", "16", "particle effect collisions against curves: optimize performance by doing a combined collision check for this triangle amount first (-1 avoids any box tests)"};
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, ..."};
47 cvar_t mod_q3bsp_nolightmaps = {CVAR_SAVE, "mod_q3bsp_nolightmaps", "0", "do not load lightmaps in Q3BSP maps (to save video RAM, but be warned: it looks ugly)"};
48 cvar_t mod_q3bsp_tracelineofsight_brushes = {0, "mod_q3bsp_tracelineofsight_brushes", "0", "enables culling of entities behind detail brushes, curves, etc"};
50 static texture_t mod_q1bsp_texture_solid;
51 static texture_t mod_q1bsp_texture_sky;
52 static texture_t mod_q1bsp_texture_lava;
53 static texture_t mod_q1bsp_texture_slime;
54 static texture_t mod_q1bsp_texture_water;
56 void Mod_BrushInit(void)
58 // Cvar_RegisterVariable(&r_subdivide_size);
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_curves_collisions_stride);
72 Cvar_RegisterVariable(&mod_q3bsp_curves_stride);
73 Cvar_RegisterVariable(&mod_q3bsp_optimizedtraceline);
74 Cvar_RegisterVariable(&mod_q3bsp_debugtracebrush);
75 Cvar_RegisterVariable(&mod_q3bsp_lightmapmergepower);
76 Cvar_RegisterVariable(&mod_q3bsp_nolightmaps);
77 Cvar_RegisterVariable(&mod_q3bsp_tracelineofsight_brushes);
79 memset(&mod_q1bsp_texture_solid, 0, sizeof(mod_q1bsp_texture_solid));
80 strlcpy(mod_q1bsp_texture_solid.name, "solid" , sizeof(mod_q1bsp_texture_solid.name));
81 mod_q1bsp_texture_solid.surfaceflags = 0;
82 mod_q1bsp_texture_solid.supercontents = SUPERCONTENTS_SOLID;
84 mod_q1bsp_texture_sky = mod_q1bsp_texture_solid;
85 strlcpy(mod_q1bsp_texture_sky.name, "sky", sizeof(mod_q1bsp_texture_sky.name));
86 mod_q1bsp_texture_sky.surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
87 mod_q1bsp_texture_sky.supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
89 mod_q1bsp_texture_lava = mod_q1bsp_texture_solid;
90 strlcpy(mod_q1bsp_texture_lava.name, "*lava", sizeof(mod_q1bsp_texture_lava.name));
91 mod_q1bsp_texture_lava.surfaceflags = Q3SURFACEFLAG_NOMARKS;
92 mod_q1bsp_texture_lava.supercontents = SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
94 mod_q1bsp_texture_slime = mod_q1bsp_texture_solid;
95 strlcpy(mod_q1bsp_texture_slime.name, "*slime", sizeof(mod_q1bsp_texture_slime.name));
96 mod_q1bsp_texture_slime.surfaceflags = Q3SURFACEFLAG_NOMARKS;
97 mod_q1bsp_texture_slime.supercontents = SUPERCONTENTS_SLIME;
99 mod_q1bsp_texture_water = mod_q1bsp_texture_solid;
100 strlcpy(mod_q1bsp_texture_water.name, "*water", sizeof(mod_q1bsp_texture_water.name));
101 mod_q1bsp_texture_water.surfaceflags = Q3SURFACEFLAG_NOMARKS;
102 mod_q1bsp_texture_water.supercontents = SUPERCONTENTS_WATER;
105 static mleaf_t *Mod_Q1BSP_PointInLeaf(dp_model_t *model, const vec3_t p)
112 // LordHavoc: modified to start at first clip node,
113 // in other words: first node of the (sub)model
114 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
116 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
118 return (mleaf_t *)node;
121 static void Mod_Q1BSP_AmbientSoundLevelsForPoint(dp_model_t *model, const vec3_t p, unsigned char *out, int outsize)
125 leaf = Mod_Q1BSP_PointInLeaf(model, p);
128 i = min(outsize, (int)sizeof(leaf->ambient_sound_level));
131 memcpy(out, leaf->ambient_sound_level, i);
137 memset(out, 0, outsize);
140 static int Mod_Q1BSP_FindBoxClusters(dp_model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
143 int nodestackindex = 0;
144 mnode_t *node, *nodestack[1024];
145 if (!model->brush.num_pvsclusters)
147 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
153 // node - recurse down the BSP tree
154 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
158 return -1; // ERROR: NAN bounding box!
159 // box is on one side of plane, take that path
160 node = node->children[sides-1];
164 // box crosses plane, take one path and remember the other
165 if (nodestackindex < 1024)
166 nodestack[nodestackindex++] = node->children[0];
167 node = node->children[1];
173 // leaf - add clusterindex to list
174 if (numclusters < maxclusters)
175 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
179 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
183 if (nodestackindex < 1024)
184 nodestack[nodestackindex++] = node->children[0];
185 node = node->children[1];
190 // leaf - add clusterindex to list
191 if (numclusters < maxclusters)
192 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
197 // try another path we didn't take earlier
198 if (nodestackindex == 0)
200 node = nodestack[--nodestackindex];
202 // return number of clusters found (even if more than the maxclusters)
206 static int Mod_Q1BSP_BoxTouchingPVS(dp_model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
208 int nodestackindex = 0;
209 mnode_t *node, *nodestack[1024];
210 if (!model->brush.num_pvsclusters)
212 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
218 // node - recurse down the BSP tree
219 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
223 return -1; // ERROR: NAN bounding box!
224 // box is on one side of plane, take that path
225 node = node->children[sides-1];
229 // box crosses plane, take one path and remember the other
230 if (nodestackindex < 1024)
231 nodestack[nodestackindex++] = node->children[0];
232 node = node->children[1];
238 // leaf - check cluster bit
239 int clusterindex = ((mleaf_t *)node)->clusterindex;
240 if (CHECKPVSBIT(pvs, clusterindex))
242 // it is visible, return immediately with the news
247 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
251 if (nodestackindex < 1024)
252 nodestack[nodestackindex++] = node->children[0];
253 node = node->children[1];
258 // leaf - check cluster bit
259 int clusterindex = ((mleaf_t *)node)->clusterindex;
260 if (CHECKPVSBIT(pvs, clusterindex))
262 // it is visible, return immediately with the news
268 // nothing to see here, try another path we didn't take earlier
269 if (nodestackindex == 0)
271 node = nodestack[--nodestackindex];
277 static int Mod_Q1BSP_BoxTouchingLeafPVS(dp_model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
279 int nodestackindex = 0;
280 mnode_t *node, *nodestack[1024];
281 if (!model->brush.num_leafs)
283 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
289 // node - recurse down the BSP tree
290 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
294 return -1; // ERROR: NAN bounding box!
295 // box is on one side of plane, take that path
296 node = node->children[sides-1];
300 // box crosses plane, take one path and remember the other
301 if (nodestackindex < 1024)
302 nodestack[nodestackindex++] = node->children[0];
303 node = node->children[1];
309 // leaf - check cluster bit
310 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
311 if (CHECKPVSBIT(pvs, clusterindex))
313 // it is visible, return immediately with the news
318 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
322 if (nodestackindex < 1024)
323 nodestack[nodestackindex++] = node->children[0];
324 node = node->children[1];
329 // leaf - check cluster bit
330 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
331 if (CHECKPVSBIT(pvs, clusterindex))
333 // it is visible, return immediately with the news
339 // nothing to see here, try another path we didn't take earlier
340 if (nodestackindex == 0)
342 node = nodestack[--nodestackindex];
348 static int Mod_Q1BSP_BoxTouchingVisibleLeafs(dp_model_t *model, const unsigned char *visibleleafs, const vec3_t mins, const vec3_t maxs)
350 int nodestackindex = 0;
351 mnode_t *node, *nodestack[1024];
352 if (!model->brush.num_leafs)
354 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
360 // node - recurse down the BSP tree
361 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
365 return -1; // ERROR: NAN bounding box!
366 // box is on one side of plane, take that path
367 node = node->children[sides-1];
371 // box crosses plane, take one path and remember the other
372 if (nodestackindex < 1024)
373 nodestack[nodestackindex++] = node->children[0];
374 node = node->children[1];
380 // leaf - check if it is visible
381 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
383 // it is visible, return immediately with the news
388 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
392 if (nodestackindex < 1024)
393 nodestack[nodestackindex++] = node->children[0];
394 node = node->children[1];
399 // leaf - check if it is visible
400 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
402 // it is visible, return immediately with the news
408 // nothing to see here, try another path we didn't take earlier
409 if (nodestackindex == 0)
411 node = nodestack[--nodestackindex];
417 typedef struct findnonsolidlocationinfo_s
420 vec3_t absmin, absmax;
426 findnonsolidlocationinfo_t;
428 static void Mod_Q1BSP_FindNonSolidLocation_r_Triangle(findnonsolidlocationinfo_t *info, msurface_t *surface, int k)
431 float dist, f, vert[3][3], edge[3][3], facenormal[3], edgenormal[3][3], point[3];
433 tri = (info->model->surfmesh.data_element3i + 3 * surface->num_firsttriangle) + k * 3;
434 VectorCopy((info->model->surfmesh.data_vertex3f + tri[0] * 3), vert[0]);
435 VectorCopy((info->model->surfmesh.data_vertex3f + tri[1] * 3), vert[1]);
436 VectorCopy((info->model->surfmesh.data_vertex3f + tri[2] * 3), vert[2]);
437 VectorSubtract(vert[1], vert[0], edge[0]);
438 VectorSubtract(vert[2], vert[1], edge[1]);
439 CrossProduct(edge[1], edge[0], facenormal);
440 if (facenormal[0] || facenormal[1] || facenormal[2])
442 VectorNormalize(facenormal);
443 f = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
444 if (f <= info->bestdist && f >= -info->bestdist)
446 VectorSubtract(vert[0], vert[2], edge[2]);
447 VectorNormalize(edge[0]);
448 VectorNormalize(edge[1]);
449 VectorNormalize(edge[2]);
450 CrossProduct(facenormal, edge[0], edgenormal[0]);
451 CrossProduct(facenormal, edge[1], edgenormal[1]);
452 CrossProduct(facenormal, edge[2], edgenormal[2]);
454 if (DotProduct(info->center, edgenormal[0]) < DotProduct(vert[0], edgenormal[0])
455 && DotProduct(info->center, edgenormal[1]) < DotProduct(vert[1], edgenormal[1])
456 && DotProduct(info->center, edgenormal[2]) < DotProduct(vert[2], edgenormal[2]))
458 // we got lucky, the center is within the face
459 dist = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
463 if (info->bestdist > dist)
465 info->bestdist = dist;
466 VectorScale(facenormal, (info->radius - -dist), info->nudge);
471 if (info->bestdist > dist)
473 info->bestdist = dist;
474 VectorScale(facenormal, (info->radius - dist), info->nudge);
480 // check which edge or vertex the center is nearest
481 for (i = 0;i < 3;i++)
483 f = DotProduct(info->center, edge[i]);
484 if (f >= DotProduct(vert[0], edge[i])
485 && f <= DotProduct(vert[1], edge[i]))
488 VectorMA(info->center, -f, edge[i], point);
489 dist = sqrt(DotProduct(point, point));
490 if (info->bestdist > dist)
492 info->bestdist = dist;
493 VectorScale(point, (info->radius / dist), info->nudge);
495 // skip both vertex checks
496 // (both are further away than this edge)
501 // not on edge, check first vertex of edge
502 VectorSubtract(info->center, vert[i], point);
503 dist = sqrt(DotProduct(point, point));
504 if (info->bestdist > dist)
506 info->bestdist = dist;
507 VectorScale(point, (info->radius / dist), info->nudge);
516 static void Mod_Q1BSP_FindNonSolidLocation_r_Leaf(findnonsolidlocationinfo_t *info, mleaf_t *leaf)
518 int surfacenum, k, *mark;
520 for (surfacenum = 0, mark = leaf->firstleafsurface;surfacenum < leaf->numleafsurfaces;surfacenum++, mark++)
522 surface = info->model->data_surfaces + *mark;
523 if (surface->texture->supercontents & SUPERCONTENTS_SOLID)
525 if(surface->num_bboxstride > 0)
528 cnt = (surface->num_triangles + surface->num_bboxstride - 1) / surface->num_bboxstride;
529 for(i = 0; i < cnt; ++i)
531 if(BoxesOverlap(surface->data_bbox6f + i * 6, surface->data_bbox6f + i * 6 + 3, info->absmin, info->absmax))
533 for(k = 0; k < surface->num_bboxstride; ++k)
535 tri = i * surface->num_bboxstride + k;
536 if(tri >= surface->num_triangles)
538 Mod_Q1BSP_FindNonSolidLocation_r_Triangle(info, surface, tri);
545 for (k = 0;k < surface->num_triangles;k++)
547 Mod_Q1BSP_FindNonSolidLocation_r_Triangle(info, surface, k);
554 static void Mod_Q1BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, mnode_t *node)
558 float f = PlaneDiff(info->center, node->plane);
559 if (f >= -info->bestdist)
560 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[0]);
561 if (f <= info->bestdist)
562 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[1]);
566 if (((mleaf_t *)node)->numleafsurfaces)
567 Mod_Q1BSP_FindNonSolidLocation_r_Leaf(info, (mleaf_t *)node);
571 static void Mod_Q1BSP_FindNonSolidLocation(dp_model_t *model, const vec3_t in, vec3_t out, float radius)
574 findnonsolidlocationinfo_t info;
580 VectorCopy(in, info.center);
581 info.radius = radius;
586 VectorClear(info.nudge);
587 info.bestdist = radius;
588 VectorCopy(info.center, info.absmin);
589 VectorCopy(info.center, info.absmax);
590 info.absmin[0] -= info.radius + 1;
591 info.absmin[1] -= info.radius + 1;
592 info.absmin[2] -= info.radius + 1;
593 info.absmax[0] += info.radius + 1;
594 info.absmax[1] += info.radius + 1;
595 info.absmax[2] += info.radius + 1;
596 Mod_Q1BSP_FindNonSolidLocation_r(&info, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
597 VectorAdd(info.center, info.nudge, info.center);
599 while (info.bestdist < radius && ++i < 10);
600 VectorCopy(info.center, out);
603 int Mod_Q1BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativecontents)
605 switch(nativecontents)
610 return SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
612 return SUPERCONTENTS_WATER;
614 return SUPERCONTENTS_SLIME;
616 return SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
618 return SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP | SUPERCONTENTS_OPAQUE; // to match behaviour of Q3 maps, let sky count as opaque
623 int Mod_Q1BSP_NativeContentsFromSuperContents(dp_model_t *model, int supercontents)
625 if (supercontents & (SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY))
626 return CONTENTS_SOLID;
627 if (supercontents & SUPERCONTENTS_SKY)
629 if (supercontents & SUPERCONTENTS_LAVA)
630 return CONTENTS_LAVA;
631 if (supercontents & SUPERCONTENTS_SLIME)
632 return CONTENTS_SLIME;
633 if (supercontents & SUPERCONTENTS_WATER)
634 return CONTENTS_WATER;
635 return CONTENTS_EMPTY;
638 typedef struct RecursiveHullCheckTraceInfo_s
640 // the hull we're tracing through
643 // the trace structure to fill in
646 // start, end, and end - start (in model space)
651 RecursiveHullCheckTraceInfo_t;
653 // 1/32 epsilon to keep floating point happy
654 #define DIST_EPSILON (0.03125)
656 #define HULLCHECKSTATE_EMPTY 0
657 #define HULLCHECKSTATE_SOLID 1
658 #define HULLCHECKSTATE_DONE 2
660 extern cvar_t collision_prefernudgedfraction;
661 static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int num, double p1f, double p2f, double p1[3], double p2[3])
663 // status variables, these don't need to be saved on the stack when
664 // recursing... but are because this should be thread-safe
665 // (note: tracing against a bbox is not thread-safe, yet)
670 // variables that need to be stored on the stack when recursing
675 // LordHavoc: a goto! everyone flee in terror... :)
680 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
681 if (!t->trace->startfound)
683 t->trace->startfound = true;
684 t->trace->startsupercontents |= num;
686 if (num & SUPERCONTENTS_LIQUIDSMASK)
687 t->trace->inwater = true;
689 t->trace->inopen = true;
690 if (num & SUPERCONTENTS_SOLID)
691 t->trace->hittexture = &mod_q1bsp_texture_solid;
692 else if (num & SUPERCONTENTS_SKY)
693 t->trace->hittexture = &mod_q1bsp_texture_sky;
694 else if (num & SUPERCONTENTS_LAVA)
695 t->trace->hittexture = &mod_q1bsp_texture_lava;
696 else if (num & SUPERCONTENTS_SLIME)
697 t->trace->hittexture = &mod_q1bsp_texture_slime;
699 t->trace->hittexture = &mod_q1bsp_texture_water;
700 t->trace->hitq3surfaceflags = t->trace->hittexture->surfaceflags;
701 t->trace->hitsupercontents = num;
702 if (num & t->trace->hitsupercontentsmask)
704 // if the first leaf is solid, set startsolid
705 if (t->trace->allsolid)
706 t->trace->startsolid = true;
707 #if COLLISIONPARANOID >= 3
710 return HULLCHECKSTATE_SOLID;
714 t->trace->allsolid = false;
715 #if COLLISIONPARANOID >= 3
718 return HULLCHECKSTATE_EMPTY;
722 // find the point distances
723 node = t->hull->clipnodes + num;
725 plane = t->hull->planes + node->planenum;
728 t1 = p1[plane->type] - plane->dist;
729 t2 = p2[plane->type] - plane->dist;
733 t1 = DotProduct (plane->normal, p1) - plane->dist;
734 t2 = DotProduct (plane->normal, p2) - plane->dist;
741 #if COLLISIONPARANOID >= 3
744 num = node->children[1];
753 #if COLLISIONPARANOID >= 3
756 num = node->children[0];
762 // the line intersects, find intersection point
763 // LordHavoc: this uses the original trace for maximum accuracy
764 #if COLLISIONPARANOID >= 3
769 t1 = t->start[plane->type] - plane->dist;
770 t2 = t->end[plane->type] - plane->dist;
774 t1 = DotProduct (plane->normal, t->start) - plane->dist;
775 t2 = DotProduct (plane->normal, t->end) - plane->dist;
778 midf = t1 / (t1 - t2);
779 midf = bound(p1f, midf, p2f);
780 VectorMA(t->start, midf, t->dist, mid);
782 // recurse both sides, front side first
783 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side], p1f, midf, p1, mid);
784 // if this side is not empty, return what it is (solid or done)
785 if (ret != HULLCHECKSTATE_EMPTY)
788 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side ^ 1], midf, p2f, mid, p2);
789 // if other side is not solid, return what it is (empty or done)
790 if (ret != HULLCHECKSTATE_SOLID)
793 // front is air and back is solid, this is the impact point...
796 t->trace->plane.dist = -plane->dist;
797 VectorNegate (plane->normal, t->trace->plane.normal);
801 t->trace->plane.dist = plane->dist;
802 VectorCopy (plane->normal, t->trace->plane.normal);
805 // calculate the true fraction
806 t1 = DotProduct(t->trace->plane.normal, t->start) - t->trace->plane.dist;
807 t2 = DotProduct(t->trace->plane.normal, t->end) - t->trace->plane.dist;
808 midf = t1 / (t1 - t2);
809 t->trace->realfraction = bound(0, midf, 1);
811 // calculate the return fraction which is nudged off the surface a bit
812 midf = (t1 - DIST_EPSILON) / (t1 - t2);
813 t->trace->fraction = bound(0, midf, 1);
815 if (collision_prefernudgedfraction.integer)
816 t->trace->realfraction = t->trace->fraction;
818 #if COLLISIONPARANOID >= 3
821 return HULLCHECKSTATE_DONE;
824 //#if COLLISIONPARANOID < 2
825 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
828 mclipnode_t *nodes = t->hull->clipnodes;
829 mplane_t *planes = t->hull->planes;
831 VectorCopy(t->start, point);
834 plane = planes + nodes[num].planenum;
835 num = nodes[num].children[(plane->type < 3 ? point[plane->type] : DotProduct(plane->normal, point)) < plane->dist];
837 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
838 t->trace->startsupercontents |= num;
839 if (num & SUPERCONTENTS_LIQUIDSMASK)
840 t->trace->inwater = true;
842 t->trace->inopen = true;
843 if (num & t->trace->hitsupercontentsmask)
845 t->trace->allsolid = t->trace->startsolid = true;
846 return HULLCHECKSTATE_SOLID;
850 t->trace->allsolid = t->trace->startsolid = false;
851 return HULLCHECKSTATE_EMPTY;
856 static void Mod_Q1BSP_TracePoint(struct model_s *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, int hitsupercontentsmask)
858 RecursiveHullCheckTraceInfo_t rhc;
860 memset(&rhc, 0, sizeof(rhc));
861 memset(trace, 0, sizeof(trace_t));
863 rhc.trace->fraction = 1;
864 rhc.trace->realfraction = 1;
865 rhc.trace->allsolid = true;
866 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
867 VectorCopy(start, rhc.start);
868 VectorCopy(start, rhc.end);
869 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
872 static void Mod_Q1BSP_TraceLine(struct model_s *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask)
874 RecursiveHullCheckTraceInfo_t rhc;
876 if (VectorCompare(start, end))
878 Mod_Q1BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask);
882 memset(&rhc, 0, sizeof(rhc));
883 memset(trace, 0, sizeof(trace_t));
885 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
886 rhc.trace->fraction = 1;
887 rhc.trace->realfraction = 1;
888 rhc.trace->allsolid = true;
889 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
890 VectorCopy(start, rhc.start);
891 VectorCopy(end, rhc.end);
892 VectorSubtract(rhc.end, rhc.start, rhc.dist);
893 #if COLLISIONPARANOID >= 2
894 Con_Printf("t(%f %f %f,%f %f %f)", rhc.start[0], rhc.start[1], rhc.start[2], rhc.end[0], rhc.end[1], rhc.end[2]);
895 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
900 VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
901 memset(&testtrace, 0, sizeof(trace_t));
902 rhc.trace = &testtrace;
903 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
904 rhc.trace->fraction = 1;
905 rhc.trace->realfraction = 1;
906 rhc.trace->allsolid = true;
907 VectorCopy(test, rhc.start);
908 VectorCopy(test, rhc.end);
909 VectorClear(rhc.dist);
910 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
911 //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
912 if (!trace->startsolid && testtrace.startsolid)
913 Con_Printf(" - ended in solid!\n");
917 if (VectorLength2(rhc.dist))
918 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
920 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
924 static void Mod_Q1BSP_TraceBox(struct model_s *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
926 // this function currently only supports same size start and end
928 RecursiveHullCheckTraceInfo_t rhc;
930 if (VectorCompare(boxmins, boxmaxs))
932 if (VectorCompare(start, end))
933 Mod_Q1BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask);
935 Mod_Q1BSP_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask);
939 memset(&rhc, 0, sizeof(rhc));
940 memset(trace, 0, sizeof(trace_t));
942 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
943 rhc.trace->fraction = 1;
944 rhc.trace->realfraction = 1;
945 rhc.trace->allsolid = true;
946 VectorSubtract(boxmaxs, boxmins, boxsize);
948 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
949 else if (model->brush.ishlbsp)
951 // LordHavoc: this has to have a minor tolerance (the .1) because of
952 // minor float precision errors from the box being transformed around
953 if (boxsize[0] < 32.1)
955 if (boxsize[2] < 54) // pick the nearest of 36 or 72
956 rhc.hull = &model->brushq1.hulls[3]; // 32x32x36
958 rhc.hull = &model->brushq1.hulls[1]; // 32x32x72
961 rhc.hull = &model->brushq1.hulls[2]; // 64x64x64
965 // LordHavoc: this has to have a minor tolerance (the .1) because of
966 // minor float precision errors from the box being transformed around
967 if (boxsize[0] < 32.1)
968 rhc.hull = &model->brushq1.hulls[1]; // 32x32x56
970 rhc.hull = &model->brushq1.hulls[2]; // 64x64x88
972 VectorMAMAM(1, start, 1, boxmins, -1, rhc.hull->clip_mins, rhc.start);
973 VectorMAMAM(1, end, 1, boxmins, -1, rhc.hull->clip_mins, rhc.end);
974 VectorSubtract(rhc.end, rhc.start, rhc.dist);
975 #if COLLISIONPARANOID >= 2
976 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]);
977 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
982 VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
983 memset(&testtrace, 0, sizeof(trace_t));
984 rhc.trace = &testtrace;
985 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
986 rhc.trace->fraction = 1;
987 rhc.trace->realfraction = 1;
988 rhc.trace->allsolid = true;
989 VectorCopy(test, rhc.start);
990 VectorCopy(test, rhc.end);
991 VectorClear(rhc.dist);
992 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
993 //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
994 if (!trace->startsolid && testtrace.startsolid)
995 Con_Printf(" - ended in solid!\n");
999 if (VectorLength2(rhc.dist))
1000 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
1002 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
1006 static int Mod_Q1BSP_PointSuperContents(struct model_s *model, int frame, const vec3_t point)
1008 int num = model->brushq1.hulls[0].firstclipnode;
1010 mclipnode_t *nodes = model->brushq1.hulls[0].clipnodes;
1011 mplane_t *planes = model->brushq1.hulls[0].planes;
1014 plane = planes + nodes[num].planenum;
1015 num = nodes[num].children[(plane->type < 3 ? point[plane->type] : DotProduct(plane->normal, point)) < plane->dist];
1017 return Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
1020 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)
1024 colplanef_t cbox_planes[6];
1026 cbox.hasaabbplanes = true;
1027 cbox.supercontents = boxsupercontents;
1030 cbox.numtriangles = 0;
1031 cbox.planes = cbox_planes;
1033 cbox.elements = NULL;
1041 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];
1042 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];
1043 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];
1044 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];
1045 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];
1046 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];
1047 cbox_planes[0].q3surfaceflags = boxq3surfaceflags;cbox_planes[0].texture = boxtexture;
1048 cbox_planes[1].q3surfaceflags = boxq3surfaceflags;cbox_planes[1].texture = boxtexture;
1049 cbox_planes[2].q3surfaceflags = boxq3surfaceflags;cbox_planes[2].texture = boxtexture;
1050 cbox_planes[3].q3surfaceflags = boxq3surfaceflags;cbox_planes[3].texture = boxtexture;
1051 cbox_planes[4].q3surfaceflags = boxq3surfaceflags;cbox_planes[4].texture = boxtexture;
1052 cbox_planes[5].q3surfaceflags = boxq3surfaceflags;cbox_planes[5].texture = boxtexture;
1053 memset(trace, 0, sizeof(trace_t));
1054 trace->hitsupercontentsmask = hitsupercontentsmask;
1055 trace->fraction = 1;
1056 trace->realfraction = 1;
1057 Collision_TraceLineBrushFloat(trace, start, end, &cbox, &cbox);
1059 RecursiveHullCheckTraceInfo_t rhc;
1060 static hull_t box_hull;
1061 static mclipnode_t box_clipnodes[6];
1062 static mplane_t box_planes[6];
1063 // fill in a default trace
1064 memset(&rhc, 0, sizeof(rhc));
1065 memset(trace, 0, sizeof(trace_t));
1066 //To keep everything totally uniform, bounding boxes are turned into small
1067 //BSP trees instead of being compared directly.
1068 // create a temp hull from bounding box sizes
1069 box_planes[0].dist = cmaxs[0] - mins[0];
1070 box_planes[1].dist = cmins[0] - maxs[0];
1071 box_planes[2].dist = cmaxs[1] - mins[1];
1072 box_planes[3].dist = cmins[1] - maxs[1];
1073 box_planes[4].dist = cmaxs[2] - mins[2];
1074 box_planes[5].dist = cmins[2] - maxs[2];
1075 #if COLLISIONPARANOID >= 3
1076 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]);
1079 if (box_hull.clipnodes == NULL)
1083 //Set up the planes and clipnodes so that the six floats of a bounding box
1084 //can just be stored out and get a proper hull_t structure.
1086 box_hull.clipnodes = box_clipnodes;
1087 box_hull.planes = box_planes;
1088 box_hull.firstclipnode = 0;
1089 box_hull.lastclipnode = 5;
1091 for (i = 0;i < 6;i++)
1093 box_clipnodes[i].planenum = i;
1097 box_clipnodes[i].children[side] = CONTENTS_EMPTY;
1099 box_clipnodes[i].children[side^1] = i + 1;
1101 box_clipnodes[i].children[side^1] = CONTENTS_SOLID;
1103 box_planes[i].type = i>>1;
1104 box_planes[i].normal[i>>1] = 1;
1108 // trace a line through the generated clipping hull
1109 //rhc.boxsupercontents = boxsupercontents;
1110 rhc.hull = &box_hull;
1112 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
1113 rhc.trace->fraction = 1;
1114 rhc.trace->realfraction = 1;
1115 rhc.trace->allsolid = true;
1116 VectorCopy(start, rhc.start);
1117 VectorCopy(end, rhc.end);
1118 VectorSubtract(rhc.end, rhc.start, rhc.dist);
1119 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
1120 //VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
1121 if (rhc.trace->startsupercontents)
1122 rhc.trace->startsupercontents = boxsupercontents;
1126 void Collision_ClipTrace_Point(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, texture_t *boxtexture)
1128 memset(trace, 0, sizeof(trace_t));
1129 trace->fraction = 1;
1130 trace->realfraction = 1;
1131 if (BoxesOverlap(start, start, cmins, cmaxs))
1133 trace->startsupercontents |= boxsupercontents;
1134 if (hitsupercontentsmask & boxsupercontents)
1136 trace->startsolid = true;
1137 trace->allsolid = true;
1142 static qboolean Mod_Q1BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end)
1145 model->TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK);
1146 return trace.fraction == 1;
1149 static int Mod_Q1BSP_LightPoint_RecursiveBSPNode(dp_model_t *model, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const mnode_t *node, float x, float y, float startz, float endz)
1153 float mid, distz = endz - startz;
1157 return false; // didn't hit anything
1159 switch (node->plane->type)
1162 node = node->children[x < node->plane->dist];
1165 node = node->children[y < node->plane->dist];
1168 side = startz < node->plane->dist;
1169 if ((endz < node->plane->dist) == side)
1171 node = node->children[side];
1174 // found an intersection
1175 mid = node->plane->dist;
1178 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
1179 front += startz * node->plane->normal[2];
1180 back += endz * node->plane->normal[2];
1181 side = front < node->plane->dist;
1182 if ((back < node->plane->dist) == side)
1184 node = node->children[side];
1187 // found an intersection
1188 mid = startz + distz * (front - node->plane->dist) / (front - back);
1192 // go down front side
1193 if (node->children[side]->plane && Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
1194 return true; // hit something
1197 // check for impact on this node
1198 if (node->numsurfaces)
1200 int i, dsi, dti, lmwidth, lmheight;
1202 msurface_t *surface;
1203 unsigned char *lightmap;
1204 int maps, line3, size3;
1207 float scale, w, w00, w01, w10, w11;
1209 surface = model->data_surfaces + node->firstsurface;
1210 for (i = 0;i < node->numsurfaces;i++, surface++)
1212 if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->lightmapinfo->samples)
1213 continue; // no lightmaps
1215 // location we want to sample in the lightmap
1216 ds = ((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]) * 0.0625f;
1217 dt = ((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]) * 0.0625f;
1222 lmwidth = ((surface->lightmapinfo->extents[0]>>4)+1);
1223 lmheight = ((surface->lightmapinfo->extents[1]>>4)+1);
1226 if (dsi >= 0 && dsi < lmwidth-1 && dti >= 0 && dti < lmheight-1)
1228 // calculate bilinear interpolation factors
1229 // and also multiply by fixedpoint conversion factors
1232 w00 = (1 - dsfrac) * (1 - dtfrac) * (1.0f / 32768.0f);
1233 w01 = ( dsfrac) * (1 - dtfrac) * (1.0f / 32768.0f);
1234 w10 = (1 - dsfrac) * ( dtfrac) * (1.0f / 32768.0f);
1235 w11 = ( dsfrac) * ( dtfrac) * (1.0f / 32768.0f);
1237 // values for pointer math
1238 line3 = lmwidth * 3; // LordHavoc: *3 for colored lighting
1239 size3 = lmwidth * lmheight * 3; // LordHavoc: *3 for colored lighting
1241 // look up the pixel
1242 lightmap = surface->lightmapinfo->samples + dti * line3 + dsi*3; // LordHavoc: *3 for colored lighting
1244 // bilinear filter each lightmap style, and sum them
1245 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++)
1247 scale = r_refdef.scene.lightstylevalue[surface->lightmapinfo->styles[maps]];
1248 w = w00 * scale;VectorMA(ambientcolor, w, lightmap , ambientcolor);
1249 w = w01 * scale;VectorMA(ambientcolor, w, lightmap + 3 , ambientcolor);
1250 w = w10 * scale;VectorMA(ambientcolor, w, lightmap + line3 , ambientcolor);
1251 w = w11 * scale;VectorMA(ambientcolor, w, lightmap + line3 + 3, ambientcolor);
1255 return true; // success
1260 // go down back side
1261 node = node->children[side ^ 1];
1263 distz = endz - startz;
1268 void Mod_Q1BSP_LightPoint(dp_model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
1270 // pretend lighting is coming down from above (due to lack of a lightgrid to know primary lighting direction)
1271 VectorSet(diffusenormal, 0, 0, 1);
1273 if (!model->brushq1.lightdata)
1275 VectorSet(ambientcolor, 1, 1, 1);
1276 VectorSet(diffusecolor, 0, 0, 0);
1280 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);
1283 static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char *inend, unsigned char *out, unsigned char *outend)
1286 unsigned char *outstart = out;
1287 while (out < outend)
1291 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));
1301 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));
1304 for (c = *in++;c > 0;c--)
1308 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));
1319 R_Q1BSP_LoadSplitSky
1321 A sky texture is 256*128, with the right side being a masked overlay
1324 void R_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesperpixel)
1329 unsigned *solidpixels = Mem_Alloc(tempmempool, w*h*sizeof(unsigned char[4]));
1330 unsigned *alphapixels = Mem_Alloc(tempmempool, w*h*sizeof(unsigned char[4]));
1332 // allocate a texture pool if we need it
1333 if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
1334 loadmodel->texturepool = R_AllocTexturePool();
1336 if (bytesperpixel == 4)
1338 for (y = 0;y < h;y++)
1340 for (x = 0;x < w;x++)
1342 solidpixels[y*w+x] = ((unsigned *)src)[y*width+x+w];
1343 alphapixels[y*w+x] = ((unsigned *)src)[y*width+x];
1349 // make an average value for the back to avoid
1350 // a fringe on the top level
1359 for (y = 0;y < h;y++)
1361 for (x = 0;x < w;x++)
1363 p = src[x*width+y+w];
1364 r += palette_rgb[p][0];
1365 g += palette_rgb[p][1];
1366 b += palette_rgb[p][2];
1369 bgra.b[2] = r/(w*h);
1370 bgra.b[1] = g/(w*h);
1371 bgra.b[0] = b/(w*h);
1373 for (y = 0;y < h;y++)
1375 for (x = 0;x < w;x++)
1377 solidpixels[y*w+x] = palette_bgra_complete[src[y*width+x+w]];
1379 alphapixels[y*w+x] = p ? palette_bgra_complete[p] : bgra.i;
1384 loadmodel->brush.solidskyskinframe = R_SkinFrame_LoadInternalBGRA("sky_solidtexture", TEXF_PRECACHE, (unsigned char *) solidpixels, w, h);
1385 loadmodel->brush.alphaskyskinframe = R_SkinFrame_LoadInternalBGRA("sky_alphatexture", TEXF_ALPHA | TEXF_PRECACHE, (unsigned char *) alphapixels, w, h);
1386 Mem_Free(solidpixels);
1387 Mem_Free(alphapixels);
1390 static void Mod_Q1BSP_LoadTextures(lump_t *l)
1392 int i, j, k, num, max, altmax, mtwidth, mtheight, *dofs, incomplete;
1393 skinframe_t *skinframe;
1395 texture_t *tx, *tx2, *anims[10], *altanims[10];
1397 unsigned char *data, *mtdata;
1399 char mapname[MAX_QPATH], name[MAX_QPATH];
1400 unsigned char zero[4];
1402 memset(zero, 0, sizeof(zero));
1404 loadmodel->data_textures = NULL;
1406 // add two slots for notexture walls and notexture liquids
1409 m = (dmiptexlump_t *)(mod_base + l->fileofs);
1410 m->nummiptex = LittleLong (m->nummiptex);
1411 loadmodel->num_textures = m->nummiptex + 2;
1412 loadmodel->num_texturesperskin = loadmodel->num_textures;
1417 loadmodel->num_textures = 2;
1418 loadmodel->num_texturesperskin = loadmodel->num_textures;
1421 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
1423 // fill out all slots with notexture
1424 if (cls.state != ca_dedicated)
1425 skinframe = R_SkinFrame_LoadMissing();
1428 for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
1430 strlcpy(tx->name, "NO TEXTURE FOUND", sizeof(tx->name));
1433 if (cls.state != ca_dedicated)
1435 tx->numskinframes = 1;
1436 tx->skinframerate = 1;
1437 tx->skinframes[0] = skinframe;
1438 tx->currentskinframe = tx->skinframes[0];
1440 tx->basematerialflags = MATERIALFLAG_WALL;
1441 if (i == loadmodel->num_textures - 1)
1443 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1444 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1445 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1449 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1450 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1452 tx->currentframe = tx;
1454 // clear water settings
1457 tx->refractfactor = 1;
1458 Vector4Set(tx->refractcolor4f, 1, 1, 1, 1);
1459 tx->reflectfactor = 1;
1460 Vector4Set(tx->reflectcolor4f, 1, 1, 1, 1);
1461 tx->r_water_wateralpha = 1;
1466 Con_Printf("%s: no miptex lump to load textures from\n", loadmodel->name);
1470 s = loadmodel->name;
1471 if (!strncasecmp(s, "maps/", 5))
1473 FS_StripExtension(s, mapname, sizeof(mapname));
1475 // just to work around bounds checking when debugging with it (array index out of bounds error thing)
1477 // LordHavoc: mostly rewritten map texture loader
1478 for (i = 0;i < m->nummiptex;i++)
1480 dofs[i] = LittleLong(dofs[i]);
1481 if (r_nosurftextures.integer)
1485 Con_DPrintf("%s: miptex #%i missing\n", loadmodel->name, i);
1488 dmiptex = (miptex_t *)((unsigned char *)m + dofs[i]);
1490 // copy name, but only up to 16 characters
1491 // (the output buffer can hold more than this, but the input buffer is
1493 for (j = 0;j < 16 && dmiptex->name[j];j++)
1494 name[j] = dmiptex->name[j];
1499 dpsnprintf(name, sizeof(name), "unnamed%i", i);
1500 Con_DPrintf("%s: warning: renaming unnamed texture to %s\n", loadmodel->name, name);
1503 mtwidth = LittleLong(dmiptex->width);
1504 mtheight = LittleLong(dmiptex->height);
1506 j = LittleLong(dmiptex->offsets[0]);
1510 if (j < 40 || j + mtwidth * mtheight > l->filelen)
1512 Con_Printf("%s: Texture \"%s\" is corrupt or incomplete\n", loadmodel->name, dmiptex->name);
1515 mtdata = (unsigned char *)dmiptex + j;
1518 if ((mtwidth & 15) || (mtheight & 15))
1519 Con_DPrintf("%s: warning: texture \"%s\" is not 16 aligned\n", loadmodel->name, dmiptex->name);
1521 // LordHavoc: force all names to lowercase
1522 for (j = 0;name[j];j++)
1523 if (name[j] >= 'A' && name[j] <= 'Z')
1524 name[j] += 'a' - 'A';
1526 if (dmiptex->name[0] && Mod_LoadTextureFromQ3Shader(loadmodel->data_textures + i, name, false, false, 0))
1529 tx = loadmodel->data_textures + i;
1530 strlcpy(tx->name, name, sizeof(tx->name));
1531 tx->width = mtwidth;
1532 tx->height = mtheight;
1534 if (tx->name[0] == '*')
1536 if (!strncmp(tx->name, "*lava", 5))
1538 tx->supercontents = mod_q1bsp_texture_lava.supercontents;
1539 tx->surfaceflags = mod_q1bsp_texture_lava.surfaceflags;
1541 else if (!strncmp(tx->name, "*slime", 6))
1543 tx->supercontents = mod_q1bsp_texture_slime.supercontents;
1544 tx->surfaceflags = mod_q1bsp_texture_slime.surfaceflags;
1548 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1549 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1552 else if (!strncmp(tx->name, "sky", 3))
1554 tx->supercontents = mod_q1bsp_texture_sky.supercontents;
1555 tx->surfaceflags = mod_q1bsp_texture_sky.surfaceflags;
1559 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1560 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1563 if (cls.state != ca_dedicated)
1565 // LordHavoc: HL sky textures are entirely different than quake
1566 if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == mtheight * 2)
1568 data = loadimagepixelsbgra(tx->name, false, false);
1569 if (data && image_width == image_height * 2)
1571 R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1574 else if (mtdata != NULL)
1575 R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1579 skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s/%s", mapname, tx->name), TEXF_ALPHA | TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0) | TEXF_COMPRESS, false);
1581 skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s", tx->name), TEXF_ALPHA | TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0) | TEXF_COMPRESS, false);
1584 // did not find external texture, load it from the bsp or wad3
1585 if (loadmodel->brush.ishlbsp)
1587 // internal texture overrides wad
1588 unsigned char *pixels, *freepixels;
1589 pixels = freepixels = NULL;
1591 pixels = W_ConvertWAD3TextureBGRA(dmiptex);
1593 pixels = freepixels = W_GetTextureBGRA(tx->name);
1596 tx->width = image_width;
1597 tx->height = image_height;
1598 skinframe = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_ALPHA | TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0), pixels, image_width, image_height);
1601 Mem_Free(freepixels);
1603 else if (mtdata) // texture included
1604 skinframe = R_SkinFrame_LoadInternalQuake(tx->name, TEXF_PRECACHE | TEXF_MIPMAP | (r_picmipworld.integer ? TEXF_PICMIP : 0), false, r_fullbrights.integer, mtdata, tx->width, tx->height);
1606 // if skinframe is still NULL the "missing" texture will be used
1608 tx->skinframes[0] = skinframe;
1611 tx->basematerialflags = MATERIALFLAG_WALL;
1612 if (tx->name[0] == '*')
1614 // LordHavoc: some turbulent textures should not be affected by wateralpha
1615 if (!strncmp(tx->name, "*glassmirror", 12)) // Tenebrae
1617 // replace the texture with transparent black
1618 Vector4Set(zero, 128, 128, 128, 128);
1619 tx->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_MIPMAP | TEXF_PRECACHE | TEXF_ALPHA, zero, 1, 1);
1620 tx->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_REFLECTION;
1622 else if (!strncmp(tx->name,"*lava",5)
1623 || !strncmp(tx->name,"*teleport",9)
1624 || !strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1625 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1627 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW | MATERIALFLAG_WATERALPHA | MATERIALFLAG_WATERSHADER;
1628 if (tx->skinframes[0] && tx->skinframes[0]->hasalpha)
1629 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1631 else if (!strncmp(tx->name, "mirror", 6)) // Tenebrae
1633 // replace the texture with black
1634 tx->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_PRECACHE, zero, 1, 1);
1635 tx->basematerialflags |= MATERIALFLAG_REFLECTION;
1637 else if (!strncmp(tx->name, "sky", 3))
1638 tx->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
1639 else if (!strcmp(tx->name, "caulk"))
1640 tx->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
1641 else if (tx->skinframes[0] && tx->skinframes[0]->hasalpha)
1642 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1644 // start out with no animation
1645 tx->currentframe = tx;
1646 tx->currentskinframe = tx->skinframes[0];
1650 // sequence the animations
1651 for (i = 0;i < m->nummiptex;i++)
1653 tx = loadmodel->data_textures + i;
1654 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1656 if (tx->anim_total[0] || tx->anim_total[1])
1657 continue; // already sequenced
1659 // find the number of frames in the animation
1660 memset(anims, 0, sizeof(anims));
1661 memset(altanims, 0, sizeof(altanims));
1663 for (j = i;j < m->nummiptex;j++)
1665 tx2 = loadmodel->data_textures + j;
1666 if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
1670 if (num >= '0' && num <= '9')
1671 anims[num - '0'] = tx2;
1672 else if (num >= 'a' && num <= 'j')
1673 altanims[num - 'a'] = tx2;
1675 Con_Printf("Bad animating texture %s\n", tx->name);
1679 for (j = 0;j < 10;j++)
1686 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
1689 for (j = 0;j < max;j++)
1693 Con_Printf("Missing frame %i of %s\n", j, tx->name);
1697 for (j = 0;j < altmax;j++)
1701 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
1710 // if there is no alternate animation, duplicate the primary
1711 // animation into the alternate
1713 for (k = 0;k < 10;k++)
1714 altanims[k] = anims[k];
1717 // link together the primary animation
1718 for (j = 0;j < max;j++)
1721 tx2->animated = true;
1722 tx2->anim_total[0] = max;
1723 tx2->anim_total[1] = altmax;
1724 for (k = 0;k < 10;k++)
1726 tx2->anim_frames[0][k] = anims[k];
1727 tx2->anim_frames[1][k] = altanims[k];
1731 // if there really is an alternate anim...
1732 if (anims[0] != altanims[0])
1734 // link together the alternate animation
1735 for (j = 0;j < altmax;j++)
1738 tx2->animated = true;
1739 // the primary/alternate are reversed here
1740 tx2->anim_total[0] = altmax;
1741 tx2->anim_total[1] = max;
1742 for (k = 0;k < 10;k++)
1744 tx2->anim_frames[0][k] = altanims[k];
1745 tx2->anim_frames[1][k] = anims[k];
1752 static void Mod_Q1BSP_LoadLighting(lump_t *l)
1755 unsigned char *in, *out, *data, d;
1756 char litfilename[MAX_QPATH];
1757 char dlitfilename[MAX_QPATH];
1758 fs_offset_t filesize;
1759 if (loadmodel->brush.ishlbsp) // LordHavoc: load the colored lighting data straight
1761 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1762 for (i=0; i<l->filelen; i++)
1763 loadmodel->brushq1.lightdata[i] = mod_base[l->fileofs+i] >>= 1;
1765 else // LordHavoc: bsp version 29 (normal white lighting)
1767 // LordHavoc: hope is not lost yet, check for a .lit file to load
1768 strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
1769 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
1770 strlcpy (dlitfilename, litfilename, sizeof (dlitfilename));
1771 strlcat (litfilename, ".lit", sizeof (litfilename));
1772 strlcat (dlitfilename, ".dlit", sizeof (dlitfilename));
1773 data = (unsigned char*) FS_LoadFile(litfilename, tempmempool, false, &filesize);
1776 if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1778 i = LittleLong(((int *)data)[1]);
1781 if (developer_loading.integer)
1782 Con_Printf("loaded %s\n", litfilename);
1783 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1784 memcpy(loadmodel->brushq1.lightdata, data + 8, filesize - 8);
1786 data = (unsigned char*) FS_LoadFile(dlitfilename, tempmempool, false, &filesize);
1789 if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1791 i = LittleLong(((int *)data)[1]);
1794 if (developer_loading.integer)
1795 Con_Printf("loaded %s\n", dlitfilename);
1796 loadmodel->brushq1.nmaplightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1797 memcpy(loadmodel->brushq1.nmaplightdata, data + 8, filesize - 8);
1798 loadmodel->brushq3.deluxemapping_modelspace = false;
1799 loadmodel->brushq3.deluxemapping = true;
1808 Con_Printf("Unknown .lit file version (%d)\n", i);
1810 else if (filesize == 8)
1811 Con_Print("Empty .lit file, ignoring\n");
1813 Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", (int) filesize, (int) (8 + l->filelen * 3));
1820 // LordHavoc: oh well, expand the white lighting data
1823 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen*3);
1824 in = mod_base + l->fileofs;
1825 out = loadmodel->brushq1.lightdata;
1826 for (i = 0;i < l->filelen;i++)
1836 static void Mod_Q1BSP_LoadVisibility(lump_t *l)
1838 loadmodel->brushq1.num_compressedpvs = 0;
1839 loadmodel->brushq1.data_compressedpvs = NULL;
1842 loadmodel->brushq1.num_compressedpvs = l->filelen;
1843 loadmodel->brushq1.data_compressedpvs = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1844 memcpy(loadmodel->brushq1.data_compressedpvs, mod_base + l->fileofs, l->filelen);
1847 // used only for HalfLife maps
1848 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
1850 char key[128], value[4096];
1854 if (!COM_ParseToken_Simple(&data, false, false))
1856 if (com_token[0] != '{')
1860 if (!COM_ParseToken_Simple(&data, false, false))
1862 if (com_token[0] == '}')
1863 break; // end of worldspawn
1864 if (com_token[0] == '_')
1865 strlcpy(key, com_token + 1, sizeof(key));
1867 strlcpy(key, com_token, sizeof(key));
1868 while (key[strlen(key)-1] == ' ') // remove trailing spaces
1869 key[strlen(key)-1] = 0;
1870 if (!COM_ParseToken_Simple(&data, false, false))
1872 dpsnprintf(value, sizeof(value), "%s", com_token);
1873 if (!strcmp("wad", key)) // for HalfLife maps
1875 if (loadmodel->brush.ishlbsp)
1878 for (i = 0;i < (int)sizeof(value);i++)
1879 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
1883 for (;i < (int)sizeof(value);i++)
1885 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
1886 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
1888 else if (value[i] == ';' || value[i] == 0)
1892 W_LoadTextureWadFile(&value[j], false);
1904 static void Mod_Q1BSP_LoadEntities(lump_t *l)
1906 loadmodel->brush.entities = NULL;
1909 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen + 1);
1910 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
1911 loadmodel->brush.entities[l->filelen] = 0;
1912 if (loadmodel->brush.ishlbsp)
1913 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
1917 static void Mod_Q1BSP_LoadVertexes(lump_t *l)
1923 in = (dvertex_t *)(mod_base + l->fileofs);
1924 if (l->filelen % sizeof(*in))
1925 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
1926 count = l->filelen / sizeof(*in);
1927 out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1929 loadmodel->brushq1.vertexes = out;
1930 loadmodel->brushq1.numvertexes = count;
1932 for ( i=0 ; i<count ; i++, in++, out++)
1934 out->position[0] = LittleFloat(in->point[0]);
1935 out->position[1] = LittleFloat(in->point[1]);
1936 out->position[2] = LittleFloat(in->point[2]);
1940 // The following two functions should be removed and MSG_* or SZ_* function sets adjusted so they
1941 // can be used for this
1943 int SB_ReadInt (unsigned char **buffer)
1946 i = ((*buffer)[0]) + 256*((*buffer)[1]) + 65536*((*buffer)[2]) + 16777216*((*buffer)[3]);
1952 float SB_ReadFloat (unsigned char **buffer)
1960 u.i = SB_ReadInt (buffer);
1964 static void Mod_Q1BSP_LoadSubmodels(lump_t *l, hullinfo_t *hullinfo)
1966 unsigned char *index;
1970 index = (unsigned char *)(mod_base + l->fileofs);
1971 if (l->filelen % (48+4*hullinfo->filehulls))
1972 Host_Error ("Mod_Q1BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
1974 count = l->filelen / (48+4*hullinfo->filehulls);
1975 out = (dmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
1977 loadmodel->brushq1.submodels = out;
1978 loadmodel->brush.numsubmodels = count;
1980 for (i = 0; i < count; i++, out++)
1982 // spread out the mins / maxs by a pixel
1983 out->mins[0] = SB_ReadFloat (&index) - 1;
1984 out->mins[1] = SB_ReadFloat (&index) - 1;
1985 out->mins[2] = SB_ReadFloat (&index) - 1;
1986 out->maxs[0] = SB_ReadFloat (&index) + 1;
1987 out->maxs[1] = SB_ReadFloat (&index) + 1;
1988 out->maxs[2] = SB_ReadFloat (&index) + 1;
1989 out->origin[0] = SB_ReadFloat (&index);
1990 out->origin[1] = SB_ReadFloat (&index);
1991 out->origin[2] = SB_ReadFloat (&index);
1992 for (j = 0; j < hullinfo->filehulls; j++)
1993 out->headnode[j] = SB_ReadInt (&index);
1994 out->visleafs = SB_ReadInt (&index);
1995 out->firstface = SB_ReadInt (&index);
1996 out->numfaces = SB_ReadInt (&index);
2000 static void Mod_Q1BSP_LoadEdges(lump_t *l)
2006 in = (dedge_t *)(mod_base + l->fileofs);
2007 if (l->filelen % sizeof(*in))
2008 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
2009 count = l->filelen / sizeof(*in);
2010 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
2012 loadmodel->brushq1.edges = out;
2013 loadmodel->brushq1.numedges = count;
2015 for ( i=0 ; i<count ; i++, in++, out++)
2017 out->v[0] = (unsigned short)LittleShort(in->v[0]);
2018 out->v[1] = (unsigned short)LittleShort(in->v[1]);
2019 if (out->v[0] >= loadmodel->brushq1.numvertexes || out->v[1] >= loadmodel->brushq1.numvertexes)
2021 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);
2022 if(!loadmodel->brushq1.numvertexes)
2023 Host_Error("Mod_Q1BSP_LoadEdges: %s has edges but no vertexes, cannot fix\n", loadmodel->name);
2031 static void Mod_Q1BSP_LoadTexinfo(lump_t *l)
2035 int i, j, k, count, miptex;
2037 in = (texinfo_t *)(mod_base + l->fileofs);
2038 if (l->filelen % sizeof(*in))
2039 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
2040 count = l->filelen / sizeof(*in);
2041 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
2043 loadmodel->brushq1.texinfo = out;
2044 loadmodel->brushq1.numtexinfo = count;
2046 for (i = 0;i < count;i++, in++, out++)
2048 for (k = 0;k < 2;k++)
2049 for (j = 0;j < 4;j++)
2050 out->vecs[k][j] = LittleFloat(in->vecs[k][j]);
2052 miptex = LittleLong(in->miptex);
2053 out->flags = LittleLong(in->flags);
2055 out->texture = NULL;
2056 if (loadmodel->data_textures)
2058 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
2059 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
2061 out->texture = loadmodel->data_textures + miptex;
2063 if (out->flags & TEX_SPECIAL)
2065 // if texture chosen is NULL or the shader needs a lightmap,
2066 // force to notexture water shader
2067 if (out->texture == NULL)
2068 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 1);
2072 // if texture chosen is NULL, force to notexture
2073 if (out->texture == NULL)
2074 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 2);
2080 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
2085 mins[0] = mins[1] = mins[2] = 9999;
2086 maxs[0] = maxs[1] = maxs[2] = -9999;
2088 for (i = 0;i < numverts;i++)
2090 for (j = 0;j < 3;j++, v++)
2100 #define MAX_SUBDIVPOLYTRIANGLES 4096
2101 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
2103 static int subdivpolyverts, subdivpolytriangles;
2104 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
2105 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
2107 static int subdivpolylookupvert(vec3_t v)
2110 for (i = 0;i < subdivpolyverts;i++)
2111 if (subdivpolyvert[i][0] == v[0]
2112 && subdivpolyvert[i][1] == v[1]
2113 && subdivpolyvert[i][2] == v[2])
2115 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
2116 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
2117 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
2118 return subdivpolyverts++;
2121 static void SubdividePolygon(int numverts, float *verts)
2123 int i, i1, i2, i3, f, b, c, p;
2124 vec3_t mins, maxs, front[256], back[256];
2125 float m, *pv, *cv, dist[256], frac;
2128 Host_Error("SubdividePolygon: ran out of verts in buffer");
2130 BoundPoly(numverts, verts, mins, maxs);
2132 for (i = 0;i < 3;i++)
2134 m = (mins[i] + maxs[i]) * 0.5;
2135 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
2136 if (maxs[i] - m < 8)
2138 if (m - mins[i] < 8)
2142 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
2143 dist[c] = cv[i] - m;
2146 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
2150 VectorCopy(pv, front[f]);
2155 VectorCopy(pv, back[b]);
2158 if (dist[p] == 0 || dist[c] == 0)
2160 if ((dist[p] > 0) != (dist[c] > 0) )
2163 frac = dist[p] / (dist[p] - dist[c]);
2164 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
2165 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
2166 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
2172 SubdividePolygon(f, front[0]);
2173 SubdividePolygon(b, back[0]);
2177 i1 = subdivpolylookupvert(verts);
2178 i2 = subdivpolylookupvert(verts + 3);
2179 for (i = 2;i < numverts;i++)
2181 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
2183 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
2187 i3 = subdivpolylookupvert(verts + i * 3);
2188 subdivpolyindex[subdivpolytriangles][0] = i1;
2189 subdivpolyindex[subdivpolytriangles][1] = i2;
2190 subdivpolyindex[subdivpolytriangles][2] = i3;
2192 subdivpolytriangles++;
2196 //Breaks a polygon up along axial 64 unit
2197 //boundaries so that turbulent and sky warps
2198 //can be done reasonably.
2199 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
2205 subdivpolytriangles = 0;
2206 subdivpolyverts = 0;
2207 SubdividePolygon(surface->num_vertices, (surface->mesh->data_vertex3f + 3 * surface->num_firstvertex));
2208 if (subdivpolytriangles < 1)
2209 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?");
2211 surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
2212 mesh->num_vertices = subdivpolyverts;
2213 mesh->num_triangles = subdivpolytriangles;
2214 mesh->vertex = (surfvertex_t *)(mesh + 1);
2215 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
2216 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
2218 for (i = 0;i < mesh->num_triangles;i++)
2219 for (j = 0;j < 3;j++)
2220 mesh->index[i*3+j] = subdivpolyindex[i][j];
2222 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
2224 VectorCopy(subdivpolyvert[i], v->v);
2225 v->st[0] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[0]);
2226 v->st[1] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[1]);
2231 extern cvar_t gl_max_lightmapsize;
2232 static void Mod_Q1BSP_LoadFaces(lump_t *l)
2235 msurface_t *surface;
2236 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber, lightmapsize, totallightmapsamples;
2237 float texmins[2], texmaxs[2], val;
2238 rtexture_t *lightmaptexture, *deluxemaptexture;
2240 in = (dface_t *)(mod_base + l->fileofs);
2241 if (l->filelen % sizeof(*in))
2242 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
2243 count = l->filelen / sizeof(*in);
2244 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
2245 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
2247 loadmodel->num_surfaces = count;
2249 loadmodel->brushq1.lightmapupdateflags = (unsigned char *)Mem_Alloc(loadmodel->mempool, count*sizeof(unsigned char));
2253 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs);surfacenum < count;surfacenum++, in++)
2255 numedges = (unsigned short)LittleShort(in->numedges);
2256 totalverts += numedges;
2257 totaltris += numedges - 2;
2260 Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false, false);
2262 lightmaptexture = NULL;
2263 deluxemaptexture = r_texture_blanknormalmap;
2265 lightmapsize = bound(256, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d);
2266 totallightmapsamples = 0;
2270 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs), surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, in++, surface++)
2272 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
2274 // FIXME: validate edges, texinfo, etc?
2275 firstedge = LittleLong(in->firstedge);
2276 numedges = (unsigned short)LittleShort(in->numedges);
2277 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)
2278 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)", firstedge, numedges, loadmodel->brushq1.numsurfedges);
2279 i = (unsigned short)LittleShort(in->texinfo);
2280 if ((unsigned int) i >= (unsigned int) loadmodel->brushq1.numtexinfo)
2281 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)", i, loadmodel->brushq1.numtexinfo);
2282 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + i;
2283 surface->texture = surface->lightmapinfo->texinfo->texture;
2285 planenum = (unsigned short)LittleShort(in->planenum);
2286 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
2287 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)", planenum, loadmodel->brush.num_planes);
2289 //surface->flags = surface->texture->flags;
2290 //if (LittleShort(in->side))
2291 // surface->flags |= SURF_PLANEBACK;
2292 //surface->plane = loadmodel->brush.data_planes + planenum;
2294 surface->num_firstvertex = totalverts;
2295 surface->num_vertices = numedges;
2296 surface->num_firsttriangle = totaltris;
2297 surface->num_triangles = numedges - 2;
2298 totalverts += numedges;
2299 totaltris += numedges - 2;
2301 // convert edges back to a normal polygon
2302 for (i = 0;i < surface->num_vertices;i++)
2304 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
2306 // note: the q1bsp format does not allow a 0 surfedge (it would have no negative counterpart)
2308 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2310 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2311 s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2312 t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2313 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
2314 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
2315 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
2316 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
2317 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
2320 for (i = 0;i < surface->num_triangles;i++)
2322 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
2323 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
2324 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
2327 // compile additional data about the surface geometry
2328 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);
2329 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);
2330 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
2332 // generate surface extents information
2333 texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2334 texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2335 for (i = 1;i < surface->num_vertices;i++)
2337 for (j = 0;j < 2;j++)
2339 val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
2340 texmins[j] = min(texmins[j], val);
2341 texmaxs[j] = max(texmaxs[j], val);
2344 for (i = 0;i < 2;i++)
2346 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
2347 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
2350 smax = surface->lightmapinfo->extents[0] >> 4;
2351 tmax = surface->lightmapinfo->extents[1] >> 4;
2352 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2353 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2356 for (i = 0;i < MAXLIGHTMAPS;i++)
2357 surface->lightmapinfo->styles[i] = in->styles[i];
2358 surface->lightmaptexture = NULL;
2359 surface->deluxemaptexture = r_texture_blanknormalmap;
2360 i = LittleLong(in->lightofs);
2363 surface->lightmapinfo->samples = NULL;
2365 // give non-lightmapped water a 1x white lightmap
2366 if (surface->texture->name[0] == '*' && (surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
2368 surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2369 surface->lightmapinfo->styles[0] = 0;
2370 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
2374 else if (loadmodel->brush.ishlbsp) // LordHavoc: HalfLife map (bsp version 30)
2375 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + i;
2376 else // LordHavoc: white lighting (bsp version 29)
2378 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (i * 3);
2379 if (loadmodel->brushq1.nmaplightdata)
2380 surface->lightmapinfo->nmapsamples = loadmodel->brushq1.nmaplightdata + (i * 3);
2383 // check if we should apply a lightmap to this
2384 if (!(surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
2386 if (ssize > 256 || tsize > 256)
2387 Host_Error("Bad surface extents");
2389 if (lightmapsize < ssize)
2390 lightmapsize = ssize;
2391 if (lightmapsize < tsize)
2392 lightmapsize = tsize;
2394 totallightmapsamples += ssize*tsize;
2396 // force lightmap upload on first time seeing the surface
2398 // additionally this is used by the later code to see if a
2399 // lightmap is needed on this surface (rather than duplicating the
2401 loadmodel->brushq1.lightmapupdateflags[surfacenum] = true;
2405 // small maps (such as ammo boxes especially) don't need big lightmap
2406 // textures, so this code tries to guess a good size based on
2407 // totallightmapsamples (size of the lightmaps lump basically), as well as
2408 // trying to max out the size if there is a lot of lightmap data to store
2409 // additionally, never choose a lightmapsize that is smaller than the
2410 // largest surface encountered (as it would fail)
2412 for (lightmapsize = 64; (lightmapsize < i) && (lightmapsize < bound(128, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d)) && (totallightmapsamples > lightmapsize*lightmapsize); lightmapsize*=2)
2415 // now that we've decided the lightmap texture size, we can do the rest
2416 if (cls.state != ca_dedicated)
2418 int stainmapsize = 0;
2419 mod_alloclightmap_state_t allocState;
2421 Mod_AllocLightmap_Init(&allocState, lightmapsize, lightmapsize);
2422 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2424 int i, iu, iv, lightmapx = 0, lightmapy = 0;
2425 float u, v, ubase, vbase, uscale, vscale;
2427 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
2430 smax = surface->lightmapinfo->extents[0] >> 4;
2431 tmax = surface->lightmapinfo->extents[1] >> 4;
2432 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2433 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2434 stainmapsize += ssize * tsize * 3;
2436 if (!lightmaptexture || !Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy))
2438 // allocate a texture pool if we need it
2439 if (loadmodel->texturepool == NULL)
2440 loadmodel->texturepool = R_AllocTexturePool();
2441 // could not find room, make a new lightmap
2442 lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%i", lightmapnumber), lightmapsize, lightmapsize, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2443 if (loadmodel->brushq1.nmaplightdata)
2444 deluxemaptexture = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%i", lightmapnumber), lightmapsize, lightmapsize, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2446 Mod_AllocLightmap_Reset(&allocState);
2447 Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy);
2449 surface->lightmaptexture = lightmaptexture;
2450 surface->deluxemaptexture = deluxemaptexture;
2451 surface->lightmapinfo->lightmaporigin[0] = lightmapx;
2452 surface->lightmapinfo->lightmaporigin[1] = lightmapy;
2454 uscale = 1.0f / (float)lightmapsize;
2455 vscale = 1.0f / (float)lightmapsize;
2456 ubase = lightmapx * uscale;
2457 vbase = lightmapy * vscale;
2459 for (i = 0;i < surface->num_vertices;i++)
2461 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);
2462 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);
2463 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
2464 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
2465 // LordHavoc: calc lightmap data offset for vertex lighting to use
2468 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
2472 if (cl_stainmaps.integer)
2474 // allocate stainmaps for permanent marks on walls and clear white
2475 unsigned char *stainsamples = NULL;
2476 stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, stainmapsize);
2477 memset(stainsamples, 255, stainmapsize);
2479 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2481 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
2483 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2484 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2485 surface->lightmapinfo->stainsamples = stainsamples;
2486 stainsamples += ssize * tsize * 3;
2491 // generate ushort elements array if possible
2492 if (loadmodel->surfmesh.data_element3s)
2493 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2494 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2497 static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
2500 // Host_Error("Mod_Q1BSP_LoadNodes_RecursiveSetParent: runaway recursion");
2501 node->parent = parent;
2504 // this is a node, recurse to children
2505 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
2506 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
2507 // combine supercontents of children
2508 node->combinedsupercontents = node->children[0]->combinedsupercontents | node->children[1]->combinedsupercontents;
2513 mleaf_t *leaf = (mleaf_t *)node;
2514 // if this is a leaf, calculate supercontents mask from all collidable
2515 // primitives in the leaf (brushes and collision surfaces)
2516 // also flag if the leaf contains any collision surfaces
2517 leaf->combinedsupercontents = 0;
2518 // combine the supercontents values of all brushes in this leaf
2519 for (j = 0;j < leaf->numleafbrushes;j++)
2520 leaf->combinedsupercontents |= loadmodel->brush.data_brushes[leaf->firstleafbrush[j]].texture->supercontents;
2521 // check if this leaf contains any collision surfaces (q3 patches)
2522 for (j = 0;j < leaf->numleafsurfaces;j++)
2524 msurface_t *surface = loadmodel->data_surfaces + leaf->firstleafsurface[j];
2525 if (surface->num_collisiontriangles)
2527 leaf->containscollisionsurfaces = true;
2528 leaf->combinedsupercontents |= surface->texture->supercontents;
2534 static void Mod_Q1BSP_LoadNodes(lump_t *l)
2540 in = (dnode_t *)(mod_base + l->fileofs);
2541 if (l->filelen % sizeof(*in))
2542 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
2543 count = l->filelen / sizeof(*in);
2544 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2546 loadmodel->brush.data_nodes = out;
2547 loadmodel->brush.num_nodes = count;
2549 for ( i=0 ; i<count ; i++, in++, out++)
2551 for (j=0 ; j<3 ; j++)
2553 out->mins[j] = LittleShort(in->mins[j]);
2554 out->maxs[j] = LittleShort(in->maxs[j]);
2557 p = LittleLong(in->planenum);
2558 out->plane = loadmodel->brush.data_planes + p;
2560 out->firstsurface = (unsigned short)LittleShort(in->firstface);
2561 out->numsurfaces = (unsigned short)LittleShort(in->numfaces);
2563 for (j=0 ; j<2 ; j++)
2565 // LordHavoc: this code supports broken bsp files produced by
2566 // arguire qbsp which can produce more than 32768 nodes, any value
2567 // below count is assumed to be a node number, any other value is
2568 // assumed to be a leaf number
2569 p = (unsigned short)LittleShort(in->children[j]);
2572 if (p < loadmodel->brush.num_nodes)
2573 out->children[j] = loadmodel->brush.data_nodes + p;
2576 Con_Printf("Mod_Q1BSP_LoadNodes: invalid node index %i (file has only %i nodes)\n", p, loadmodel->brush.num_nodes);
2577 // map it to the solid leaf
2578 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
2583 // note this uses 65535 intentionally, -1 is leaf 0
2585 if (p < loadmodel->brush.num_leafs)
2586 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + p);
2589 Con_Printf("Mod_Q1BSP_LoadNodes: invalid leaf index %i (file has only %i leafs)\n", p, loadmodel->brush.num_leafs);
2590 // map it to the solid leaf
2591 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
2597 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
2600 static void Mod_Q1BSP_LoadLeafs(lump_t *l)
2606 in = (dleaf_t *)(mod_base + l->fileofs);
2607 if (l->filelen % sizeof(*in))
2608 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2609 count = l->filelen / sizeof(*in);
2610 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2612 loadmodel->brush.data_leafs = out;
2613 loadmodel->brush.num_leafs = count;
2614 // get visleafs from the submodel data
2615 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2616 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2617 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2618 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2620 for ( i=0 ; i<count ; i++, in++, out++)
2622 for (j=0 ; j<3 ; j++)
2624 out->mins[j] = LittleShort(in->mins[j]);
2625 out->maxs[j] = LittleShort(in->maxs[j]);
2628 // FIXME: this function could really benefit from some error checking
2630 out->contents = LittleLong(in->contents);
2632 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + (unsigned short)LittleShort(in->firstmarksurface);
2633 out->numleafsurfaces = (unsigned short)LittleShort(in->nummarksurfaces);
2634 if ((unsigned short)LittleShort(in->firstmarksurface) + out->numleafsurfaces > loadmodel->brush.num_leafsurfaces)
2636 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);
2637 out->firstleafsurface = NULL;
2638 out->numleafsurfaces = 0;
2641 out->clusterindex = i - 1;
2642 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
2643 out->clusterindex = -1;
2645 p = LittleLong(in->visofs);
2646 // ignore visofs errors on leaf 0 (solid)
2647 if (p >= 0 && out->clusterindex >= 0)
2649 if (p >= loadmodel->brushq1.num_compressedpvs)
2650 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
2652 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);
2655 for (j = 0;j < 4;j++)
2656 out->ambient_sound_level[j] = in->ambient_level[j];
2658 // FIXME: Insert caustics here
2662 qboolean Mod_Q1BSP_CheckWaterAlphaSupport(void)
2666 const unsigned char *pvs;
2667 // if there's no vis data, assume supported (because everything is visible all the time)
2668 if (!loadmodel->brush.data_pvsclusters)
2670 // check all liquid leafs to see if they can see into empty leafs, if any
2671 // can we can assume this map supports r_wateralpha
2672 for (i = 0, leaf = loadmodel->brush.data_leafs;i < loadmodel->brush.num_leafs;i++, leaf++)
2674 if ((leaf->contents == CONTENTS_WATER || leaf->contents == CONTENTS_SLIME) && leaf->clusterindex >= 0)
2676 pvs = loadmodel->brush.data_pvsclusters + leaf->clusterindex * loadmodel->brush.num_pvsclusterbytes;
2677 for (j = 0;j < loadmodel->brush.num_leafs;j++)
2678 if (CHECKPVSBIT(pvs, loadmodel->brush.data_leafs[j].clusterindex) && loadmodel->brush.data_leafs[j].contents == CONTENTS_EMPTY)
2685 static void Mod_Q1BSP_LoadClipnodes(lump_t *l, hullinfo_t *hullinfo)
2692 in = (dclipnode_t *)(mod_base + l->fileofs);
2693 if (l->filelen % sizeof(*in))
2694 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
2695 count = l->filelen / sizeof(*in);
2696 out = (mclipnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2698 loadmodel->brushq1.clipnodes = out;
2699 loadmodel->brushq1.numclipnodes = count;
2701 for (i = 1; i < MAX_MAP_HULLS; i++)
2703 hull = &loadmodel->brushq1.hulls[i];
2704 hull->clipnodes = out;
2705 hull->firstclipnode = 0;
2706 hull->lastclipnode = count-1;
2707 hull->planes = loadmodel->brush.data_planes;
2708 hull->clip_mins[0] = hullinfo->hullsizes[i][0][0];
2709 hull->clip_mins[1] = hullinfo->hullsizes[i][0][1];
2710 hull->clip_mins[2] = hullinfo->hullsizes[i][0][2];
2711 hull->clip_maxs[0] = hullinfo->hullsizes[i][1][0];
2712 hull->clip_maxs[1] = hullinfo->hullsizes[i][1][1];
2713 hull->clip_maxs[2] = hullinfo->hullsizes[i][1][2];
2714 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2717 for (i=0 ; i<count ; i++, out++, in++)
2719 out->planenum = LittleLong(in->planenum);
2720 // LordHavoc: this code supports arguire qbsp's broken clipnodes indices (more than 32768 clipnodes), values above count are assumed to be contents values
2721 out->children[0] = (unsigned short)LittleShort(in->children[0]);
2722 out->children[1] = (unsigned short)LittleShort(in->children[1]);
2723 if (out->children[0] >= count)
2724 out->children[0] -= 65536;
2725 if (out->children[1] >= count)
2726 out->children[1] -= 65536;
2727 if (out->planenum < 0 || out->planenum >= loadmodel->brush.num_planes)
2728 Host_Error("Corrupt clipping hull(out of range planenum)");
2732 //Duplicate the drawing hull structure as a clipping hull
2733 static void Mod_Q1BSP_MakeHull0(void)
2740 hull = &loadmodel->brushq1.hulls[0];
2742 in = loadmodel->brush.data_nodes;
2743 out = (mclipnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(*out));
2745 hull->clipnodes = out;
2746 hull->firstclipnode = 0;
2747 hull->lastclipnode = loadmodel->brush.num_nodes - 1;
2748 hull->planes = loadmodel->brush.data_planes;
2750 for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
2752 out->planenum = in->plane - loadmodel->brush.data_planes;
2753 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
2754 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
2758 static void Mod_Q1BSP_LoadLeaffaces(lump_t *l)
2763 in = (short *)(mod_base + l->fileofs);
2764 if (l->filelen % sizeof(*in))
2765 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
2766 loadmodel->brush.num_leafsurfaces = l->filelen / sizeof(*in);
2767 loadmodel->brush.data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
2769 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
2771 j = (unsigned short) LittleShort(in[i]);
2772 if (j >= loadmodel->num_surfaces)
2773 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
2774 loadmodel->brush.data_leafsurfaces[i] = j;
2778 static void Mod_Q1BSP_LoadSurfedges(lump_t *l)
2783 in = (int *)(mod_base + l->fileofs);
2784 if (l->filelen % sizeof(*in))
2785 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
2786 loadmodel->brushq1.numsurfedges = l->filelen / sizeof(*in);
2787 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
2789 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
2790 loadmodel->brushq1.surfedges[i] = LittleLong(in[i]);
2794 static void Mod_Q1BSP_LoadPlanes(lump_t *l)
2800 in = (dplane_t *)(mod_base + l->fileofs);
2801 if (l->filelen % sizeof(*in))
2802 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
2804 loadmodel->brush.num_planes = l->filelen / sizeof(*in);
2805 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
2807 for (i = 0;i < loadmodel->brush.num_planes;i++, in++, out++)
2809 out->normal[0] = LittleFloat(in->normal[0]);
2810 out->normal[1] = LittleFloat(in->normal[1]);
2811 out->normal[2] = LittleFloat(in->normal[2]);
2812 out->dist = LittleFloat(in->dist);
2818 static void Mod_Q1BSP_LoadMapBrushes(void)
2822 int submodel, numbrushes;
2823 qboolean firstbrush;
2824 char *text, *maptext;
2825 char mapfilename[MAX_QPATH];
2826 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
2827 strlcat (mapfilename, ".map", sizeof (mapfilename));
2828 maptext = (unsigned char*) FS_LoadFile(mapfilename, tempmempool, false, NULL);
2832 if (!COM_ParseToken_Simple(&data, false, false))
2837 if (!COM_ParseToken_Simple(&data, false, false))
2839 if (com_token[0] != '{')
2845 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
2848 if (!COM_ParseToken_Simple(&data, false, false))
2850 if (com_token[0] == '}')
2851 break; // end of entity
2852 if (com_token[0] == '{')
2859 if (submodel > loadmodel->brush.numsubmodels)
2861 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
2865 model = loadmodel->brush.submodels[submodel];
2872 if (!COM_ParseToken_Simple(&data, false, false))
2874 if (com_token[0] == '}')
2875 break; // end of brush
2876 // each brush face should be this format:
2877 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
2878 // FIXME: support hl .map format
2879 for (pointnum = 0;pointnum < 3;pointnum++)
2881 COM_ParseToken_Simple(&data, false, false);
2882 for (componentnum = 0;componentnum < 3;componentnum++)
2884 COM_ParseToken_Simple(&data, false, false);
2885 point[pointnum][componentnum] = atof(com_token);
2887 COM_ParseToken_Simple(&data, false, false);
2889 COM_ParseToken_Simple(&data, false, false);
2890 strlcpy(facetexture, com_token, sizeof(facetexture));
2891 COM_ParseToken_Simple(&data, false, false);
2892 //scroll_s = atof(com_token);
2893 COM_ParseToken_Simple(&data, false, false);
2894 //scroll_t = atof(com_token);
2895 COM_ParseToken_Simple(&data, false, false);
2896 //rotate = atof(com_token);
2897 COM_ParseToken_Simple(&data, false, false);
2898 //scale_s = atof(com_token);
2899 COM_ParseToken_Simple(&data, false, false);
2900 //scale_t = atof(com_token);
2901 TriangleNormal(point[0], point[1], point[2], planenormal);
2902 VectorNormalizeDouble(planenormal);
2903 planedist = DotProduct(point[0], planenormal);
2904 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
2914 #define MAX_PORTALPOINTS 64
2916 typedef struct portal_s
2919 mnode_t *nodes[2]; // [0] = front side of plane
2920 struct portal_s *next[2];
2922 double points[3*MAX_PORTALPOINTS];
2923 struct portal_s *chain; // all portals are linked into a list
2927 static portal_t *portalchain;
2934 static portal_t *AllocPortal(void)
2937 p = (portal_t *)Mem_Alloc(loadmodel->mempool, sizeof(portal_t));
2938 p->chain = portalchain;
2943 static void FreePortal(portal_t *p)
2948 static void Mod_Q1BSP_RecursiveRecalcNodeBBox(mnode_t *node)
2950 // process only nodes (leafs already had their box calculated)
2954 // calculate children first
2955 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[0]);
2956 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[1]);
2958 // make combined bounding box from children
2959 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
2960 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
2961 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
2962 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
2963 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
2964 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
2967 static void Mod_Q1BSP_FinalizePortals(void)
2969 int i, j, numportals, numpoints;
2970 portal_t *p, *pnext;
2973 mleaf_t *leaf, *endleaf;
2975 // tally up portal and point counts and recalculate bounding boxes for all
2976 // leafs (because qbsp is very sloppy)
2977 leaf = loadmodel->brush.data_leafs;
2978 endleaf = leaf + loadmodel->brush.num_leafs;
2979 for (;leaf < endleaf;leaf++)
2981 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
2982 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
2989 // note: this check must match the one below or it will usually corrupt memory
2990 // 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
2991 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2994 numpoints += p->numpoints * 2;
2998 loadmodel->brush.data_portals = (mportal_t *)Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
2999 loadmodel->brush.num_portals = numportals;
3000 loadmodel->brush.data_portalpoints = (mvertex_t *)((unsigned char *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
3001 loadmodel->brush.num_portalpoints = numpoints;
3002 // clear all leaf portal chains
3003 for (i = 0;i < loadmodel->brush.num_leafs;i++)
3004 loadmodel->brush.data_leafs[i].portals = NULL;
3005 // process all portals in the global portal chain, while freeing them
3006 portal = loadmodel->brush.data_portals;
3007 point = loadmodel->brush.data_portalpoints;
3014 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1])
3016 // note: this check must match the one above or it will usually corrupt memory
3017 // 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
3018 if (((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
3020 // first make the back to front portal(forward portal)
3021 portal->points = point;
3022 portal->numpoints = p->numpoints;
3023 portal->plane.dist = p->plane.dist;
3024 VectorCopy(p->plane.normal, portal->plane.normal);
3025 portal->here = (mleaf_t *)p->nodes[1];
3026 portal->past = (mleaf_t *)p->nodes[0];
3028 for (j = 0;j < portal->numpoints;j++)
3030 VectorCopy(p->points + j*3, point->position);
3033 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
3034 PlaneClassify(&portal->plane);
3036 // link into leaf's portal chain
3037 portal->next = portal->here->portals;
3038 portal->here->portals = portal;
3040 // advance to next portal
3043 // then make the front to back portal(backward portal)
3044 portal->points = point;
3045 portal->numpoints = p->numpoints;
3046 portal->plane.dist = -p->plane.dist;
3047 VectorNegate(p->plane.normal, portal->plane.normal);
3048 portal->here = (mleaf_t *)p->nodes[0];
3049 portal->past = (mleaf_t *)p->nodes[1];
3051 for (j = portal->numpoints - 1;j >= 0;j--)
3053 VectorCopy(p->points + j*3, point->position);
3056 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
3057 PlaneClassify(&portal->plane);
3059 // link into leaf's portal chain
3060 portal->next = portal->here->portals;
3061 portal->here->portals = portal;
3063 // advance to next portal
3066 // add the portal's polygon points to the leaf bounding boxes
3067 for (i = 0;i < 2;i++)
3069 leaf = (mleaf_t *)p->nodes[i];
3070 for (j = 0;j < p->numpoints;j++)
3072 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
3073 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
3074 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
3075 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
3076 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
3077 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
3084 // now recalculate the node bounding boxes from the leafs
3085 Mod_Q1BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes + loadmodel->brushq1.hulls[0].firstclipnode);
3093 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
3096 Host_Error("AddPortalToNodes: NULL front node");
3098 Host_Error("AddPortalToNodes: NULL back node");
3099 if (p->nodes[0] || p->nodes[1])
3100 Host_Error("AddPortalToNodes: already included");
3101 // 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
3103 p->nodes[0] = front;
3104 p->next[0] = (portal_t *)front->portals;
3105 front->portals = (mportal_t *)p;
3108 p->next[1] = (portal_t *)back->portals;
3109 back->portals = (mportal_t *)p;
3114 RemovePortalFromNode
3117 static void RemovePortalFromNodes(portal_t *portal)
3121 void **portalpointer;
3123 for (i = 0;i < 2;i++)
3125 node = portal->nodes[i];
3127 portalpointer = (void **) &node->portals;
3130 t = (portal_t *)*portalpointer;
3132 Host_Error("RemovePortalFromNodes: portal not in leaf");
3136 if (portal->nodes[0] == node)
3138 *portalpointer = portal->next[0];
3139 portal->nodes[0] = NULL;
3141 else if (portal->nodes[1] == node)
3143 *portalpointer = portal->next[1];
3144 portal->nodes[1] = NULL;
3147 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
3151 if (t->nodes[0] == node)
3152 portalpointer = (void **) &t->next[0];
3153 else if (t->nodes[1] == node)
3154 portalpointer = (void **) &t->next[1];
3156 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
3161 #define PORTAL_DIST_EPSILON (1.0 / 32.0)
3162 static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
3165 mnode_t *front, *back, *other_node;
3166 mplane_t clipplane, *plane;
3167 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
3168 int numfrontpoints, numbackpoints;
3169 double frontpoints[3*MAX_PORTALPOINTS], backpoints[3*MAX_PORTALPOINTS];
3171 // if a leaf, we're done
3175 plane = node->plane;
3177 front = node->children[0];
3178 back = node->children[1];
3180 Host_Error("Mod_Q1BSP_RecursiveNodePortals: corrupt node hierarchy");
3182 // create the new portal by generating a polygon for the node plane,
3183 // and clipping it by all of the other portals(which came from nodes above this one)
3184 nodeportal = AllocPortal();
3185 nodeportal->plane = *plane;
3187 // 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)
3188 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);
3189 nodeportal->numpoints = 4;
3190 side = 0; // shut up compiler warning
3191 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
3193 clipplane = portal->plane;
3194 if (portal->nodes[0] == portal->nodes[1])
3195 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(1)");
3196 if (portal->nodes[0] == node)
3198 else if (portal->nodes[1] == node)
3200 clipplane.dist = -clipplane.dist;
3201 VectorNegate(clipplane.normal, clipplane.normal);
3205 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
3207 for (i = 0;i < nodeportal->numpoints*3;i++)
3208 frontpoints[i] = nodeportal->points[i];
3209 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);
3210 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
3214 if (nodeportal->numpoints < 3)
3216 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
3217 nodeportal->numpoints = 0;
3219 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
3221 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
3222 nodeportal->numpoints = 0;
3225 AddPortalToNodes(nodeportal, front, back);
3227 // split the portals of this node along this node's plane and assign them to the children of this node
3228 // (migrating the portals downward through the tree)
3229 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
3231 if (portal->nodes[0] == portal->nodes[1])
3232 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(2)");
3233 if (portal->nodes[0] == node)
3235 else if (portal->nodes[1] == node)
3238 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
3239 nextportal = portal->next[side];
3240 if (!portal->numpoints)
3243 other_node = portal->nodes[!side];
3244 RemovePortalFromNodes(portal);
3246 // cut the portal into two portals, one on each side of the node plane
3247 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);
3249 if (!numfrontpoints)
3252 AddPortalToNodes(portal, back, other_node);
3254 AddPortalToNodes(portal, other_node, back);
3260 AddPortalToNodes(portal, front, other_node);
3262 AddPortalToNodes(portal, other_node, front);
3266 // the portal is split
3267 splitportal = AllocPortal();
3268 temp = splitportal->chain;
3269 *splitportal = *portal;
3270 splitportal->chain = temp;
3271 for (i = 0;i < numbackpoints*3;i++)
3272 splitportal->points[i] = backpoints[i];
3273 splitportal->numpoints = numbackpoints;
3274 for (i = 0;i < numfrontpoints*3;i++)
3275 portal->points[i] = frontpoints[i];
3276 portal->numpoints = numfrontpoints;
3280 AddPortalToNodes(portal, front, other_node);
3281 AddPortalToNodes(splitportal, back, other_node);
3285 AddPortalToNodes(portal, other_node, front);
3286 AddPortalToNodes(splitportal, other_node, back);
3290 Mod_Q1BSP_RecursiveNodePortals(front);
3291 Mod_Q1BSP_RecursiveNodePortals(back);
3294 static void Mod_Q1BSP_MakePortals(void)
3297 Mod_Q1BSP_RecursiveNodePortals(loadmodel->brush.data_nodes + loadmodel->brushq1.hulls[0].firstclipnode);
3298 Mod_Q1BSP_FinalizePortals();
3301 //Returns PVS data for a given point
3302 //(note: can return NULL)
3303 static unsigned char *Mod_Q1BSP_GetPVS(dp_model_t *model, const vec3_t p)
3306 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
3308 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
3309 if (((mleaf_t *)node)->clusterindex >= 0)
3310 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3315 static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(dp_model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
3319 float d = PlaneDiff(org, node->plane);
3321 node = node->children[0];
3322 else if (d < -radius)
3323 node = node->children[1];
3326 // go down both sides
3327 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
3328 node = node->children[1];
3331 // if this leaf is in a cluster, accumulate the pvs bits
3332 if (((mleaf_t *)node)->clusterindex >= 0)
3335 unsigned char *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3336 for (i = 0;i < pvsbytes;i++)
3337 pvsbuffer[i] |= pvs[i];
3341 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
3342 //of the given point.
3343 static int Mod_Q1BSP_FatPVS(dp_model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength, qboolean merge)
3345 int bytes = model->brush.num_pvsclusterbytes;
3346 bytes = min(bytes, pvsbufferlength);
3347 if (r_novis.integer || !model->brush.num_pvsclusters || !Mod_Q1BSP_GetPVS(model, org))
3349 memset(pvsbuffer, 0xFF, bytes);
3353 memset(pvsbuffer, 0, bytes);
3354 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
3358 static void Mod_Q1BSP_RoundUpToHullSize(dp_model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
3363 VectorSubtract(inmaxs, inmins, size);
3364 if (cmodel->brush.ishlbsp)
3367 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3368 else if (size[0] <= 32)
3370 if (size[2] < 54) // pick the nearest of 36 or 72
3371 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
3373 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
3376 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
3381 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3382 else if (size[0] <= 32)
3383 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
3385 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
3387 VectorCopy(inmins, outmins);
3388 VectorAdd(inmins, hull->clip_size, outmaxs);
3391 void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
3396 mempool_t *mainmempool;
3397 float dist, modelyawradius, modelradius;
3398 msurface_t *surface;
3399 int numshadowmeshtriangles;
3400 hullinfo_t hullinfo;
3401 int totalstylesurfaces, totalstyles, stylecounts[256], remapstyles[256];
3402 model_brush_lightstyleinfo_t styleinfo[256];
3403 unsigned char *datapointer;
3405 mod->modeldatatypestring = "Q1BSP";
3407 mod->type = mod_brushq1;
3409 header = (dheader_t *)buffer;
3411 i = LittleLong(header->version);
3412 if (i != BSPVERSION && i != 30)
3413 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i(Quake) or 30(HalfLife)", mod->name, i, BSPVERSION);
3414 mod->brush.ishlbsp = i == 30;
3416 // fill in hull info
3417 VectorClear (hullinfo.hullsizes[0][0]);
3418 VectorClear (hullinfo.hullsizes[0][1]);
3419 if (mod->brush.ishlbsp)
3421 mod->modeldatatypestring = "HLBSP";
3423 hullinfo.filehulls = 4;
3424 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
3425 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
3426 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
3427 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
3428 VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
3429 VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
3433 hullinfo.filehulls = 4;
3434 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
3435 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
3436 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
3437 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
3441 mod_base = (unsigned char*)buffer;
3442 for (i = 0; i < HEADER_LUMPS; i++)
3444 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
3445 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
3448 mod->soundfromcenter = true;
3449 mod->TraceBox = Mod_Q1BSP_TraceBox;
3450 mod->TraceLine = Mod_Q1BSP_TraceLine;
3451 mod->TracePoint = Mod_Q1BSP_TracePoint;
3452 mod->PointSuperContents = Mod_Q1BSP_PointSuperContents;
3453 mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
3454 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3455 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3456 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
3457 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
3458 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
3459 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
3460 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
3461 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
3462 mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
3463 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
3464 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3465 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3466 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
3467 mod->Draw = R_Q1BSP_Draw;
3468 mod->DrawDepth = R_Q1BSP_DrawDepth;
3469 mod->DrawDebug = R_Q1BSP_DrawDebug;
3470 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
3471 mod->CompileShadowMap = R_Q1BSP_CompileShadowMap;
3472 mod->DrawShadowMap = R_Q1BSP_DrawShadowMap;
3473 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
3474 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
3475 mod->DrawLight = R_Q1BSP_DrawLight;
3479 mod->brush.qw_md4sum = 0;
3480 mod->brush.qw_md4sum2 = 0;
3481 for (i = 0;i < HEADER_LUMPS;i++)
3483 if (i == LUMP_ENTITIES)
3485 mod->brush.qw_md4sum ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3486 if (i == LUMP_VISIBILITY || i == LUMP_LEAFS || i == LUMP_NODES)
3488 mod->brush.qw_md4sum2 ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3491 Mod_Q1BSP_LoadEntities(&header->lumps[LUMP_ENTITIES]);
3492 Mod_Q1BSP_LoadVertexes(&header->lumps[LUMP_VERTEXES]);
3493 Mod_Q1BSP_LoadEdges(&header->lumps[LUMP_EDGES]);
3494 Mod_Q1BSP_LoadSurfedges(&header->lumps[LUMP_SURFEDGES]);
3495 Mod_Q1BSP_LoadTextures(&header->lumps[LUMP_TEXTURES]);
3496 Mod_Q1BSP_LoadLighting(&header->lumps[LUMP_LIGHTING]);
3497 Mod_Q1BSP_LoadPlanes(&header->lumps[LUMP_PLANES]);
3498 Mod_Q1BSP_LoadTexinfo(&header->lumps[LUMP_TEXINFO]);
3499 Mod_Q1BSP_LoadFaces(&header->lumps[LUMP_FACES]);
3500 Mod_Q1BSP_LoadLeaffaces(&header->lumps[LUMP_MARKSURFACES]);
3501 Mod_Q1BSP_LoadVisibility(&header->lumps[LUMP_VISIBILITY]);
3502 // load submodels before leafs because they contain the number of vis leafs
3503 Mod_Q1BSP_LoadSubmodels(&header->lumps[LUMP_MODELS], &hullinfo);
3504 Mod_Q1BSP_LoadLeafs(&header->lumps[LUMP_LEAFS]);
3505 Mod_Q1BSP_LoadNodes(&header->lumps[LUMP_NODES]);
3506 Mod_Q1BSP_LoadClipnodes(&header->lumps[LUMP_CLIPNODES], &hullinfo);
3508 // check if the map supports transparent water rendering
3509 loadmodel->brush.supportwateralpha = Mod_Q1BSP_CheckWaterAlphaSupport();
3511 if (mod->brushq1.data_compressedpvs)
3512 Mem_Free(mod->brushq1.data_compressedpvs);
3513 mod->brushq1.data_compressedpvs = NULL;
3514 mod->brushq1.num_compressedpvs = 0;
3516 Mod_Q1BSP_MakeHull0();
3517 Mod_Q1BSP_MakePortals();
3519 mod->numframes = 2; // regular and alternate animation
3522 mainmempool = mod->mempool;
3524 // make a single combined shadow mesh to allow optimized shadow volume creation
3525 numshadowmeshtriangles = 0;
3526 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3528 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
3529 numshadowmeshtriangles += surface->num_triangles;
3531 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
3532 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3533 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));
3534 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true, false);
3535 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
3537 if (loadmodel->brush.numsubmodels)
3538 loadmodel->brush.submodels = (dp_model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
3540 // LordHavoc: to clear the fog around the original quake submodel code, I
3542 // first of all, some background info on the submodels:
3543 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
3544 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
3545 // now the weird for loop itself:
3546 // the loop functions in an odd way, on each iteration it sets up the
3547 // current 'mod' model (which despite the confusing code IS the model of
3548 // the number i), at the end of the loop it duplicates the model to become
3549 // the next submodel, and loops back to set up the new submodel.
3551 // LordHavoc: now the explanation of my sane way (which works identically):
3552 // set up the world model, then on each submodel copy from the world model
3553 // and set up the submodel with the respective model info.
3554 totalstylesurfaces = 0;
3556 for (i = 0;i < mod->brush.numsubmodels;i++)
3558 memset(stylecounts, 0, sizeof(stylecounts));
3559 for (k = 0;k < mod->brushq1.submodels[i].numfaces;k++)
3561 surface = mod->data_surfaces + mod->brushq1.submodels[i].firstface + k;
3562 for (j = 0;j < MAXLIGHTMAPS;j++)
3563 stylecounts[surface->lightmapinfo->styles[j]]++;
3565 for (k = 0;k < 255;k++)
3569 totalstylesurfaces += stylecounts[k];
3572 datapointer = (unsigned char *)Mem_Alloc(mod->mempool, mod->num_surfaces * sizeof(int) + totalstyles * sizeof(model_brush_lightstyleinfo_t) + totalstylesurfaces * sizeof(int *));
3573 for (i = 0;i < mod->brush.numsubmodels;i++)
3575 // LordHavoc: this code was originally at the end of this loop, but
3576 // has been transformed to something more readable at the start here.
3581 // duplicate the basic information
3582 dpsnprintf(name, sizeof(name), "*%i", i);
3583 mod = Mod_FindName(name, loadmodel->name);
3584 // copy the base model to this one
3586 // rename the clone back to its proper name
3587 strlcpy(mod->name, name, sizeof(mod->name));
3588 mod->brush.parentmodel = loadmodel;
3589 // textures and memory belong to the main model
3590 mod->texturepool = NULL;
3591 mod->mempool = NULL;
3592 mod->brush.GetPVS = NULL;
3593 mod->brush.FatPVS = NULL;
3594 mod->brush.BoxTouchingPVS = NULL;
3595 mod->brush.BoxTouchingLeafPVS = NULL;
3596 mod->brush.BoxTouchingVisibleLeafs = NULL;
3597 mod->brush.FindBoxClusters = NULL;
3598 mod->brush.LightPoint = NULL;
3599 mod->brush.AmbientSoundLevelsForPoint = NULL;
3602 mod->brush.submodel = i;
3604 if (loadmodel->brush.submodels)
3605 loadmodel->brush.submodels[i] = mod;
3607 bm = &mod->brushq1.submodels[i];
3609 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
3610 for (j=1 ; j<MAX_MAP_HULLS ; j++)
3612 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
3613 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
3616 mod->firstmodelsurface = bm->firstface;
3617 mod->nummodelsurfaces = bm->numfaces;
3619 // set node/leaf parents for this submodel
3620 Mod_Q1BSP_LoadNodes_RecursiveSetParent(mod->brush.data_nodes + mod->brushq1.hulls[0].firstclipnode, NULL);
3622 // make the model surface list (used by shadowing/lighting)
3623 mod->sortedmodelsurfaces = (int *)datapointer;datapointer += mod->nummodelsurfaces * sizeof(int);
3624 Mod_MakeSortedSurfaces(mod);
3626 // copy the submodel bounds, then enlarge the yaw and rotated bounds according to radius
3627 // (previously this code measured the radius of the vertices of surfaces in the submodel, but that broke submodels that contain only CLIP brushes, which do not produce surfaces)
3628 VectorCopy(bm->mins, mod->normalmins);
3629 VectorCopy(bm->maxs, mod->normalmaxs);
3630 dist = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
3631 modelyawradius = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
3632 modelyawradius = dist*dist+modelyawradius*modelyawradius;
3633 modelradius = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
3634 modelradius = modelyawradius + modelradius * modelradius;
3635 modelyawradius = sqrt(modelyawradius);
3636 modelradius = sqrt(modelradius);
3637 mod->yawmins[0] = mod->yawmins[1] = -modelyawradius;
3638 mod->yawmins[2] = mod->normalmins[2];
3639 mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius;
3640 mod->yawmaxs[2] = mod->normalmaxs[2];
3641 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
3642 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
3643 mod->radius = modelradius;
3644 mod->radius2 = modelradius * modelradius;
3646 // this gets altered below if sky or water is used
3647 mod->DrawSky = NULL;
3648 mod->DrawAddWaterPlanes = NULL;
3650 // scan surfaces for sky and water and flag the submodel as possessing these features or not
3651 // build lightstyle lists for quick marking of dirty lightmaps when lightstyles flicker
3652 if (mod->nummodelsurfaces)
3654 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
3655 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
3657 if (j < mod->nummodelsurfaces)
3658 mod->DrawSky = R_Q1BSP_DrawSky;
3660 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
3661 if (surface->texture->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION))
3663 if (j < mod->nummodelsurfaces)
3664 mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
3666 // build lightstyle update chains
3667 // (used to rapidly mark lightmapupdateflags on many surfaces
3668 // when d_lightstylevalue changes)
3669 memset(stylecounts, 0, sizeof(stylecounts));
3670 for (k = 0;k < mod->nummodelsurfaces;k++)
3672 surface = mod->data_surfaces + mod->firstmodelsurface + k;
3673 for (j = 0;j < MAXLIGHTMAPS;j++)
3674 stylecounts[surface->lightmapinfo->styles[j]]++;
3676 mod->brushq1.num_lightstyles = 0;
3677 for (k = 0;k < 255;k++)
3681 styleinfo[mod->brushq1.num_lightstyles].style = k;
3682 styleinfo[mod->brushq1.num_lightstyles].value = 0;
3683 styleinfo[mod->brushq1.num_lightstyles].numsurfaces = 0;
3684 styleinfo[mod->brushq1.num_lightstyles].surfacelist = (int *)datapointer;datapointer += stylecounts[k] * sizeof(int);
3685 remapstyles[k] = mod->brushq1.num_lightstyles;
3686 mod->brushq1.num_lightstyles++;
3689 for (k = 0;k < mod->nummodelsurfaces;k++)
3691 surface = mod->data_surfaces + mod->firstmodelsurface + k;
3692 for (j = 0;j < MAXLIGHTMAPS;j++)
3694 if (surface->lightmapinfo->styles[j] != 255)
3696 int r = remapstyles[surface->lightmapinfo->styles[j]];
3697 styleinfo[r].surfacelist[styleinfo[r].numsurfaces++] = mod->firstmodelsurface + k;
3701 mod->brushq1.data_lightstyleinfo = (model_brush_lightstyleinfo_t *)datapointer;datapointer += mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t);
3702 memcpy(mod->brushq1.data_lightstyleinfo, styleinfo, mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t));
3706 // LordHavoc: empty submodel(lacrima.bsp has such a glitch)
3707 Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
3709 //mod->brushq1.num_visleafs = bm->visleafs;
3712 Mod_Q1BSP_LoadMapBrushes();
3714 //Mod_Q1BSP_ProcessLightList();
3716 if (developer.integer >= 10)
3717 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);
3720 static void Mod_Q2BSP_LoadEntities(lump_t *l)
3724 static void Mod_Q2BSP_LoadPlanes(lump_t *l)
3731 in = (void *)(mod_base + l->fileofs);
3732 if (l->filelen % sizeof(*in))
3733 Host_Error("Mod_Q2BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
3734 count = l->filelen / sizeof(*in);
3735 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3738 loadmodel->num = count;
3740 for (i = 0;i < count;i++, in++, out++)
3746 static void Mod_Q2BSP_LoadVertices(lump_t *l)
3753 in = (void *)(mod_base + l->fileofs);
3754 if (l->filelen % sizeof(*in))
3755 Host_Error("Mod_Q2BSP_LoadVertices: funny lump size in %s",loadmodel->name);
3756 count = l->filelen / sizeof(*in);
3757 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3760 loadmodel->num = count;
3762 for (i = 0;i < count;i++, in++, out++)
3768 static void Mod_Q2BSP_LoadVisibility(lump_t *l)
3775 in = (void *)(mod_base + l->fileofs);
3776 if (l->filelen % sizeof(*in))
3777 Host_Error("Mod_Q2BSP_LoadVisibility: funny lump size in %s",loadmodel->name);
3778 count = l->filelen / sizeof(*in);
3779 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3782 loadmodel->num = count;
3784 for (i = 0;i < count;i++, in++, out++)
3790 static void Mod_Q2BSP_LoadNodes(lump_t *l)
3797 in = (void *)(mod_base + l->fileofs);
3798 if (l->filelen % sizeof(*in))
3799 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
3800 count = l->filelen / sizeof(*in);
3801 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3804 loadmodel->num = count;
3806 for (i = 0;i < count;i++, in++, out++)
3812 static void Mod_Q2BSP_LoadTexInfo(lump_t *l)
3819 in = (void *)(mod_base + l->fileofs);
3820 if (l->filelen % sizeof(*in))
3821 Host_Error("Mod_Q2BSP_LoadTexInfo: funny lump size in %s",loadmodel->name);
3822 count = l->filelen / sizeof(*in);
3823 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3826 loadmodel->num = count;
3828 for (i = 0;i < count;i++, in++, out++)
3834 static void Mod_Q2BSP_LoadFaces(lump_t *l)
3841 in = (void *)(mod_base + l->fileofs);
3842 if (l->filelen % sizeof(*in))
3843 Host_Error("Mod_Q2BSP_LoadFaces: funny lump size in %s",loadmodel->name);
3844 count = l->filelen / sizeof(*in);
3845 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3848 loadmodel->num = count;
3850 for (i = 0;i < count;i++, in++, out++)
3856 static void Mod_Q2BSP_LoadLighting(lump_t *l)
3863 in = (void *)(mod_base + l->fileofs);
3864 if (l->filelen % sizeof(*in))
3865 Host_Error("Mod_Q2BSP_LoadLighting: funny lump size in %s",loadmodel->name);
3866 count = l->filelen / sizeof(*in);
3867 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3870 loadmodel->num = count;
3872 for (i = 0;i < count;i++, in++, out++)
3878 static void Mod_Q2BSP_LoadLeafs(lump_t *l)
3885 in = (void *)(mod_base + l->fileofs);
3886 if (l->filelen % sizeof(*in))
3887 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
3888 count = l->filelen / sizeof(*in);
3889 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3892 loadmodel->num = count;
3894 for (i = 0;i < count;i++, in++, out++)
3900 static void Mod_Q2BSP_LoadLeafFaces(lump_t *l)
3907 in = (void *)(mod_base + l->fileofs);
3908 if (l->filelen % sizeof(*in))
3909 Host_Error("Mod_Q2BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
3910 count = l->filelen / sizeof(*in);
3911 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3914 loadmodel->num = count;
3916 for (i = 0;i < count;i++, in++, out++)
3922 static void Mod_Q2BSP_LoadLeafBrushes(lump_t *l)
3929 in = (void *)(mod_base + l->fileofs);
3930 if (l->filelen % sizeof(*in))
3931 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
3932 count = l->filelen / sizeof(*in);
3933 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3936 loadmodel->num = count;
3938 for (i = 0;i < count;i++, in++, out++)
3944 static void Mod_Q2BSP_LoadEdges(lump_t *l)
3951 in = (void *)(mod_base + l->fileofs);
3952 if (l->filelen % sizeof(*in))
3953 Host_Error("Mod_Q2BSP_LoadEdges: funny lump size in %s",loadmodel->name);
3954 count = l->filelen / sizeof(*in);
3955 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3958 loadmodel->num = count;
3960 for (i = 0;i < count;i++, in++, out++)
3966 static void Mod_Q2BSP_LoadSurfEdges(lump_t *l)
3973 in = (void *)(mod_base + l->fileofs);
3974 if (l->filelen % sizeof(*in))
3975 Host_Error("Mod_Q2BSP_LoadSurfEdges: funny lump size in %s",loadmodel->name);
3976 count = l->filelen / sizeof(*in);
3977 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3980 loadmodel->num = count;
3982 for (i = 0;i < count;i++, in++, out++)
3988 static void Mod_Q2BSP_LoadBrushes(lump_t *l)
3995 in = (void *)(mod_base + l->fileofs);
3996 if (l->filelen % sizeof(*in))
3997 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
3998 count = l->filelen / sizeof(*in);
3999 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4002 loadmodel->num = count;
4004 for (i = 0;i < count;i++, in++, out++)
4010 static void Mod_Q2BSP_LoadBrushSides(lump_t *l)
4017 in = (void *)(mod_base + l->fileofs);
4018 if (l->filelen % sizeof(*in))
4019 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4020 count = l->filelen / sizeof(*in);
4021 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4024 loadmodel->num = count;
4026 for (i = 0;i < count;i++, in++, out++)
4032 static void Mod_Q2BSP_LoadAreas(lump_t *l)
4039 in = (void *)(mod_base + l->fileofs);
4040 if (l->filelen % sizeof(*in))
4041 Host_Error("Mod_Q2BSP_LoadAreas: funny lump size in %s",loadmodel->name);
4042 count = l->filelen / sizeof(*in);
4043 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4046 loadmodel->num = count;
4048 for (i = 0;i < count;i++, in++, out++)
4054 static void Mod_Q2BSP_LoadAreaPortals(lump_t *l)
4061 in = (void *)(mod_base + l->fileofs);
4062 if (l->filelen % sizeof(*in))
4063 Host_Error("Mod_Q2BSP_LoadAreaPortals: funny lump size in %s",loadmodel->name);
4064 count = l->filelen / sizeof(*in);
4065 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4068 loadmodel->num = count;
4070 for (i = 0;i < count;i++, in++, out++)
4076 static void Mod_Q2BSP_LoadModels(lump_t *l)
4083 in = (void *)(mod_base + l->fileofs);
4084 if (l->filelen % sizeof(*in))
4085 Host_Error("Mod_Q2BSP_LoadModels: funny lump size in %s",loadmodel->name);
4086 count = l->filelen / sizeof(*in);
4087 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4090 loadmodel->num = count;
4092 for (i = 0;i < count;i++, in++, out++)
4098 void static Mod_Q2BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
4101 q2dheader_t *header;
4103 Host_Error("Mod_Q2BSP_Load: not yet implemented");
4105 mod->modeldatatypestring = "Q2BSP";
4107 mod->type = mod_brushq2;
4109 header = (q2dheader_t *)buffer;
4111 i = LittleLong(header->version);
4112 if (i != Q2BSPVERSION)
4113 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
4115 mod_base = (unsigned char *)header;
4117 // swap all the lumps
4118 for (i = 0;i < (int) sizeof(*header) / 4;i++)
4119 ((int *)header)[i] = LittleLong(((int *)header)[i]);
4121 mod->brush.qw_md4sum = 0;
4122 mod->brush.qw_md4sum2 = 0;
4123 for (i = 0;i < Q2HEADER_LUMPS;i++)
4125 if (i == Q2LUMP_ENTITIES)
4127 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
4128 if (i == Q2LUMP_VISIBILITY || i == Q2LUMP_LEAFS || i == Q2LUMP_NODES)
4130 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
4133 Mod_Q2BSP_LoadEntities(&header->lumps[Q2LUMP_ENTITIES]);
4134 Mod_Q2BSP_LoadPlanes(&header->lumps[Q2LUMP_PLANES]);
4135 Mod_Q2BSP_LoadVertices(&header->lumps[Q2LUMP_VERTEXES]);
4136 Mod_Q2BSP_LoadVisibility(&header->lumps[Q2LUMP_VISIBILITY]);
4137 Mod_Q2BSP_LoadNodes(&header->lumps[Q2LUMP_NODES]);
4138 Mod_Q2BSP_LoadTexInfo(&header->lumps[Q2LUMP_TEXINFO]);
4139 Mod_Q2BSP_LoadFaces(&header->lumps[Q2LUMP_FACES]);
4140 Mod_Q2BSP_LoadLighting(&header->lumps[Q2LUMP_LIGHTING]);
4141 Mod_Q2BSP_LoadLeafs(&header->lumps[Q2LUMP_LEAFS]);
4142 Mod_Q2BSP_LoadLeafFaces(&header->lumps[Q2LUMP_LEAFFACES]);
4143 Mod_Q2BSP_LoadLeafBrushes(&header->lumps[Q2LUMP_LEAFBRUSHES]);
4144 Mod_Q2BSP_LoadEdges(&header->lumps[Q2LUMP_EDGES]);
4145 Mod_Q2BSP_LoadSurfEdges(&header->lumps[Q2LUMP_SURFEDGES]);
4146 Mod_Q2BSP_LoadBrushes(&header->lumps[Q2LUMP_BRUSHES]);
4147 Mod_Q2BSP_LoadBrushSides(&header->lumps[Q2LUMP_BRUSHSIDES]);
4148 Mod_Q2BSP_LoadAreas(&header->lumps[Q2LUMP_AREAS]);
4149 Mod_Q2BSP_LoadAreaPortals(&header->lumps[Q2LUMP_AREAPORTALS]);
4150 // LordHavoc: must go last because this makes the submodels
4151 Mod_Q2BSP_LoadModels(&header->lumps[Q2LUMP_MODELS]);
4154 static int Mod_Q3BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativecontents);
4155 static int Mod_Q3BSP_NativeContentsFromSuperContents(dp_model_t *model, int supercontents);
4157 static void Mod_Q3BSP_LoadEntities(lump_t *l)
4160 char key[128], value[MAX_INPUTLINE];
4162 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
4163 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
4164 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
4167 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen + 1);
4168 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
4169 loadmodel->brush.entities[l->filelen] = 0;
4170 data = loadmodel->brush.entities;
4171 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
4172 // VorteX: q3map2 FS-R generates tangentspace deluxemaps for q3bsp and sets 'deluxeMaps' key
4173 loadmodel->brushq3.deluxemapping = false;
4174 if (data && COM_ParseToken_Simple(&data, false, false) && com_token[0] == '{')
4178 if (!COM_ParseToken_Simple(&data, false, false))
4180 if (com_token[0] == '}')
4181 break; // end of worldspawn
4182 if (com_token[0] == '_')
4183 strlcpy(key, com_token + 1, sizeof(key));
4185 strlcpy(key, com_token, sizeof(key));
4186 while (key[strlen(key)-1] == ' ') // remove trailing spaces
4187 key[strlen(key)-1] = 0;
4188 if (!COM_ParseToken_Simple(&data, false, false))
4190 strlcpy(value, com_token, sizeof(value));
4191 if (!strcasecmp("gridsize", key)) // this one is case insensitive to 100% match q3map2
4193 #if _MSC_VER >= 1400
4194 #define sscanf sscanf_s
4197 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
4198 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
4200 VectorSet(v, 64, 64, 128);
4201 if(sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) != 3)
4202 Con_Printf("Mod_Q3BSP_LoadEntities: funny gridsize \"%s\" in %s, interpreting as \"%f %f %f\" to match q3map2's parsing\n", value, loadmodel->name, v[0], v[1], v[2]);
4203 if (v[0] != 0 && v[1] != 0 && v[2] != 0)
4204 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
4207 else if (!strcmp("deluxeMaps", key))
4209 if (!strcmp(com_token, "1"))
4211 loadmodel->brushq3.deluxemapping = true;
4212 loadmodel->brushq3.deluxemapping_modelspace = true;
4214 else if (!strcmp(com_token, "2"))
4216 loadmodel->brushq3.deluxemapping = true;
4217 loadmodel->brushq3.deluxemapping_modelspace = false;
4224 static void Mod_Q3BSP_LoadTextures(lump_t *l)
4230 in = (q3dtexture_t *)(mod_base + l->fileofs);
4231 if (l->filelen % sizeof(*in))
4232 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
4233 count = l->filelen / sizeof(*in);
4234 out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4236 loadmodel->data_textures = out;
4237 loadmodel->num_textures = count;
4238 loadmodel->num_texturesperskin = loadmodel->num_textures;
4240 for (i = 0;i < count;i++)
4242 strlcpy (out[i].name, in[i].name, sizeof (out[i].name));
4243 out[i].surfaceflags = LittleLong(in[i].surfaceflags);
4244 out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in[i].contents));
4247 if (cls.state == ca_dedicated)
4250 for (i = 0;i < count;i++, in++, out++)
4251 Mod_LoadTextureFromQ3Shader(out, out->name, true, true, TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0) | TEXF_COMPRESS);
4254 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
4260 in = (q3dplane_t *)(mod_base + l->fileofs);
4261 if (l->filelen % sizeof(*in))
4262 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
4263 count = l->filelen / sizeof(*in);
4264 out = (mplane_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4266 loadmodel->brush.data_planes = out;
4267 loadmodel->brush.num_planes = count;
4269 for (i = 0;i < count;i++, in++, out++)
4271 out->normal[0] = LittleFloat(in->normal[0]);
4272 out->normal[1] = LittleFloat(in->normal[1]);
4273 out->normal[2] = LittleFloat(in->normal[2]);
4274 out->dist = LittleFloat(in->dist);
4279 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
4282 q3mbrushside_t *out;
4285 in = (q3dbrushside_t *)(mod_base + l->fileofs);
4286 if (l->filelen % sizeof(*in))
4287 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4288 count = l->filelen / sizeof(*in);
4289 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4291 loadmodel->brush.data_brushsides = out;
4292 loadmodel->brush.num_brushsides = count;
4294 for (i = 0;i < count;i++, in++, out++)
4296 n = LittleLong(in->planeindex);
4297 if (n < 0 || n >= loadmodel->brush.num_planes)
4298 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
4299 out->plane = loadmodel->brush.data_planes + n;
4300 n = LittleLong(in->textureindex);
4301 if (n < 0 || n >= loadmodel->num_textures)
4302 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4303 out->texture = loadmodel->data_textures + n;
4307 static void Mod_Q3BSP_LoadBrushSides_IG(lump_t *l)
4309 q3dbrushside_ig_t *in;
4310 q3mbrushside_t *out;
4313 in = (q3dbrushside_ig_t *)(mod_base + l->fileofs);
4314 if (l->filelen % sizeof(*in))
4315 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4316 count = l->filelen / sizeof(*in);
4317 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4319 loadmodel->brush.data_brushsides = out;
4320 loadmodel->brush.num_brushsides = count;
4322 for (i = 0;i < count;i++, in++, out++)
4324 n = LittleLong(in->planeindex);
4325 if (n < 0 || n >= loadmodel->brush.num_planes)
4326 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
4327 out->plane = loadmodel->brush.data_planes + n;
4328 n = LittleLong(in->textureindex);
4329 if (n < 0 || n >= loadmodel->num_textures)
4330 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4331 out->texture = loadmodel->data_textures + n;
4335 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
4339 int i, j, n, c, count, maxplanes, q3surfaceflags;
4340 colplanef_t *planes;
4342 in = (q3dbrush_t *)(mod_base + l->fileofs);
4343 if (l->filelen % sizeof(*in))
4344 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4345 count = l->filelen / sizeof(*in);
4346 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4348 loadmodel->brush.data_brushes = out;
4349 loadmodel->brush.num_brushes = count;
4354 for (i = 0;i < count;i++, in++, out++)
4356 n = LittleLong(in->firstbrushside);
4357 c = LittleLong(in->numbrushsides);
4358 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
4359 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", n, n + c, loadmodel->brush.num_brushsides);
4360 out->firstbrushside = loadmodel->brush.data_brushsides + n;
4361 out->numbrushsides = c;
4362 n = LittleLong(in->textureindex);
4363 if (n < 0 || n >= loadmodel->num_textures)
4364 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4365 out->texture = loadmodel->data_textures + n;
4367 // make a list of mplane_t structs to construct a colbrush from
4368 if (maxplanes < out->numbrushsides)
4370 maxplanes = out->numbrushsides;
4373 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
4376 for (j = 0;j < out->numbrushsides;j++)
4378 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4379 planes[j].dist = out->firstbrushside[j].plane->dist;
4380 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
4381 planes[j].texture = out->firstbrushside[j].texture;
4382 q3surfaceflags |= planes[j].q3surfaceflags;
4384 // make the colbrush from the planes
4385 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents, q3surfaceflags, out->texture, true);
4387 // this whole loop can take a while (e.g. on redstarrepublic4)
4388 CL_KeepaliveMessage(false);
4394 static void Mod_Q3BSP_LoadEffects(lump_t *l)
4400 in = (q3deffect_t *)(mod_base + l->fileofs);
4401 if (l->filelen % sizeof(*in))
4402 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
4403 count = l->filelen / sizeof(*in);
4404 out = (q3deffect_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4406 loadmodel->brushq3.data_effects = out;
4407 loadmodel->brushq3.num_effects = count;
4409 for (i = 0;i < count;i++, in++, out++)
4411 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
4412 n = LittleLong(in->brushindex);
4413 if (n >= loadmodel->brush.num_brushes)
4415 Con_Printf("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes), setting to -1\n", n, loadmodel->brush.num_brushes);
4418 out->brushindex = n;
4419 out->unknown = LittleLong(in->unknown);
4423 static void Mod_Q3BSP_LoadVertices(lump_t *l)
4428 in = (q3dvertex_t *)(mod_base + l->fileofs);
4429 if (l->filelen % sizeof(*in))
4430 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
4431 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
4432 loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 3 + 2 + 2 + 4)));
4433 loadmodel->brushq3.data_normal3f = loadmodel->brushq3.data_vertex3f + count * 3;
4434 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_normal3f + count * 3;
4435 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
4436 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
4438 for (i = 0;i < count;i++, in++)
4440 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
4441 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
4442 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
4443 loadmodel->brushq3.data_normal3f[i * 3 + 0] = LittleFloat(in->normal3f[0]);
4444 loadmodel->brushq3.data_normal3f[i * 3 + 1] = LittleFloat(in->normal3f[1]);
4445 loadmodel->brushq3.data_normal3f[i * 3 + 2] = LittleFloat(in->normal3f[2]);
4446 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
4447 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
4448 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
4449 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
4450 // svector/tvector are calculated later in face loading
4451 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
4452 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
4453 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
4454 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
4458 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
4464 in = (int *)(mod_base + l->fileofs);
4465 if (l->filelen % sizeof(int[3]))
4466 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
4467 count = l->filelen / sizeof(*in);
4468 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4470 loadmodel->brushq3.num_triangles = count / 3;
4471 loadmodel->brushq3.data_element3i = out;
4473 for (i = 0;i < count;i++, in++, out++)
4475 *out = LittleLong(*in);
4476 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
4478 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
4479 if(!loadmodel->brushq3.num_vertices)
4480 Host_Error("Mod_Q1BSP_LoadTrianglles: %s has triangles but no vertexes, cannot fix\n", loadmodel->name);
4486 static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
4488 q3dlightmap_t *input_pointer;
4489 int i, j, k, count, power, power2, mask, endlightmap, mergewidth, mergeheight;
4492 unsigned char *convertedpixels;
4493 char mapname[MAX_QPATH];
4494 int size, bytesperpixel, rgbmap[3];
4496 unsigned char *inpixels[10000]; // max count q3map2 can output (it uses 4 digits)
4498 // defaults for q3bsp
4505 loadmodel->brushq3.lightmapsize = 128;
4507 if (cls.state == ca_dedicated)
4510 if(mod_q3bsp_nolightmaps.integer)
4516 // prefer internal LMs for compatibility (a BSP contains no info on whether external LMs exist)
4517 if (developer_loading.integer)
4518 Con_Printf("Using internal lightmaps\n");
4519 input_pointer = (q3dlightmap_t *)(mod_base + l->fileofs);
4520 if (l->filelen % sizeof(*input_pointer))
4521 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
4522 count = l->filelen / sizeof(*input_pointer);
4523 for(i = 0; i < count; ++i)
4524 inpixels[i] = input_pointer[i].rgb;
4528 // no internal lightmaps
4529 // try external lightmaps
4530 if (developer_loading.integer)
4531 Con_Printf("Using external lightmaps\n");
4532 FS_StripExtension(loadmodel->name, mapname, sizeof(mapname));
4533 inpixels[0] = loadimagepixelsbgra(va("%s/lm_%04d", mapname, 0), false, false);
4537 // using EXTERNAL lightmaps instead
4538 if(image_width != (int) CeilPowerOf2(image_width) || image_width != image_height)
4540 Mem_Free(inpixels[0]);
4541 Host_Error("Mod_Q3BSP_LoadLightmaps: invalid external lightmap size in %s",loadmodel->name);
4551 for(count = 1; ; ++count)
4553 inpixels[count] = loadimagepixelsbgra(va("%s/lm_%04d", mapname, count), false, false);
4554 if(!inpixels[count])
4555 break; // we got all of them
4556 if(image_width != size || image_height != size)
4558 for(i = 0; i <= count; ++i)
4559 Mem_Free(inpixels[i]);
4560 Host_Error("Mod_Q3BSP_LoadLightmaps: invalid external lightmap size in %s",loadmodel->name);
4565 convertedpixels = (unsigned char *) Mem_Alloc(tempmempool, size*size*4);
4566 loadmodel->brushq3.lightmapsize = size;
4567 loadmodel->brushq3.num_originallightmaps = count;
4569 // now check the surfaces to see if any of them index an odd numbered
4570 // lightmap, if so this is not a deluxemapped bsp file
4572 // also check what lightmaps are actually used, because q3map2 sometimes
4573 // (always?) makes an unused one at the end, which
4574 // q3map2 sometimes (or always?) makes a second blank lightmap for no
4575 // reason when only one lightmap is used, which can throw off the
4576 // deluxemapping detection method, so check 2-lightmap bsp's specifically
4577 // to see if the second lightmap is blank, if so it is not deluxemapped.
4578 // VorteX: autodetect only if previous attempt to find "deluxeMaps" key
4579 // in Mod_Q3BSP_LoadEntities was failed
4580 if (!loadmodel->brushq3.deluxemapping)
4582 loadmodel->brushq3.deluxemapping = !(count & 1);
4583 loadmodel->brushq3.deluxemapping_modelspace = true;
4585 if (loadmodel->brushq3.deluxemapping)
4587 int facecount = faceslump->filelen / sizeof(q3dface_t);
4588 q3dface_t *faces = (q3dface_t *)(mod_base + faceslump->fileofs);
4589 for (i = 0;i < facecount;i++)
4591 j = LittleLong(faces[i].lightmapindex);
4594 endlightmap = max(endlightmap, j + 1);
4595 if ((j & 1) || j + 1 >= count)
4597 loadmodel->brushq3.deluxemapping = false;
4604 // q3map2 sometimes (or always?) makes a second blank lightmap for no
4605 // reason when only one lightmap is used, which can throw off the
4606 // deluxemapping detection method, so check 2-lightmap bsp's specifically
4607 // to see if the second lightmap is blank, if so it is not deluxemapped.
4609 // further research has shown q3map2 sometimes creates a deluxemap and two
4610 // blank lightmaps, which must be handled properly as well
4611 if (endlightmap == 1 && count > 1)
4614 for (i = 0;i < size*size;i++)
4616 if (c[bytesperpixel*i + rgbmap[0]])
4618 if (c[bytesperpixel*i + rgbmap[1]])
4620 if (c[bytesperpixel*i + rgbmap[2]])
4625 // all pixels in the unused lightmap were black...
4626 loadmodel->brushq3.deluxemapping = false;
4631 Con_DPrintf("%s is %sdeluxemapped\n", loadmodel->name, loadmodel->brushq3.deluxemapping ? "" : "not ");
4633 // figure out what the most reasonable merge power is within limits
4635 loadmodel->brushq3.num_lightmapmergepower = 0;
4637 for(i = 0; (128 << i) < size; ++i)
4639 // i is now 0 for 128, 1 for 256, etc
4641 for (power = 1;power + i <= mod_q3bsp_lightmapmergepower.integer && (size << power) <= (int)vid.maxtexturesize_2d && (1 << (power * 2)) < 4 * (count >> (loadmodel->brushq3.deluxemapping ? 1 : 0)); power++)
4642 loadmodel->brushq3.num_lightmapmergepower = power;
4644 loadmodel->brushq3.num_lightmapmerge = 1 << loadmodel->brushq3.num_lightmapmergepower;
4646 loadmodel->brushq3.num_mergedlightmaps = ((count >> (loadmodel->brushq3.deluxemapping ? 1 : 0)) + (1 << (loadmodel->brushq3.num_lightmapmergepower * 2)) - 1) >> (loadmodel->brushq3.num_lightmapmergepower * 2);
4647 loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4648 if (loadmodel->brushq3.deluxemapping)
4649 loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4651 // allocate a texture pool if we need it
4652 if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
4653 loadmodel->texturepool = R_AllocTexturePool();
4655 power = loadmodel->brushq3.num_lightmapmergepower;
4657 mask = (1 << power) - 1;
4658 for (i = 0;i < count;i++)
4660 // figure out which merged lightmap texture this fits into
4661 int lightmapindex = i >> (loadmodel->brushq3.deluxemapping + power2);
4662 for (k = 0;k < size*size;k++)
4664 convertedpixels[k*4+0] = inpixels[i][k*bytesperpixel+rgbmap[0]];
4665 convertedpixels[k*4+1] = inpixels[i][k*bytesperpixel+rgbmap[1]];
4666 convertedpixels[k*4+2] = inpixels[i][k*bytesperpixel+rgbmap[2]];
4667 convertedpixels[k*4+3] = 255;
4669 if (loadmodel->brushq3.num_lightmapmergepower > 0)
4671 // if the lightmap has not been allocated yet, create it
4672 if (!loadmodel->brushq3.data_lightmaps[lightmapindex])
4674 // create a lightmap only as large as necessary to hold the
4675 // remaining size*size blocks
4676 // if there are multiple merged lightmap textures then they will
4677 // all be full size except the last one which may be smaller
4678 // because it only needs to the remaining blocks, and it will often
4679 // be odd sizes like 2048x512 due to only being 25% full or so.
4680 j = (count >> (loadmodel->brushq3.deluxemapping ? 1 : 0)) - (lightmapindex << power2);
4681 for (mergewidth = 1;mergewidth < j && mergewidth < (1 << power);mergewidth *= 2)
4683 for (mergeheight = 1;mergewidth*mergeheight < j && mergeheight < (1 << power);mergeheight *= 2)
4685 if (developer_loading.integer)
4686 Con_Printf("lightmap merge texture #%i is %ix%i (%i of %i used)\n", lightmapindex, mergewidth*size, mergeheight*size, min(j, mergewidth*mergeheight), mergewidth*mergeheight);
4687 loadmodel->brushq3.data_lightmaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", lightmapindex), mergewidth * size, mergeheight * size, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), NULL);
4688 if (loadmodel->brushq3.data_deluxemaps)
4689 loadmodel->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", lightmapindex), mergewidth * size, mergeheight * size, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bspdeluxemaps.integer ? TEXF_COMPRESS : 0), NULL);
4691 mergewidth = R_TextureWidth(loadmodel->brushq3.data_lightmaps[lightmapindex]) / size;
4692 mergeheight = R_TextureHeight(loadmodel->brushq3.data_lightmaps[lightmapindex]) / size;
4693 j = (i >> (loadmodel->brushq3.deluxemapping ? 1 : 0)) & ((1 << power2) - 1);
4694 if (loadmodel->brushq3.deluxemapping && (i & 1))
4695 R_UpdateTexture(loadmodel->brushq3.data_deluxemaps[lightmapindex], convertedpixels, (j % mergewidth) * size, (j / mergewidth) * size, size, size);
4697 R_UpdateTexture(loadmodel->brushq3.data_lightmaps [lightmapindex], convertedpixels, (j % mergewidth) * size, (j / mergewidth) * size, size, size);
4701 // figure out which merged lightmap texture this fits into
4702 if (loadmodel->brushq3.deluxemapping && (i & 1))
4703 loadmodel->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", lightmapindex), size, size, convertedpixels, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bspdeluxemaps.integer ? TEXF_COMPRESS : 0), NULL);
4705 loadmodel->brushq3.data_lightmaps [lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", lightmapindex), size, size, convertedpixels, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_PRECACHE | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), NULL);
4709 Mem_Free(convertedpixels);
4712 for(i = 0; i < count; ++i)
4713 Mem_Free(inpixels[i]);
4717 static void Mod_Q3BSP_BuildBBoxes(const int *element3i, int num_triangles, const float *vertex3f, float **collisionbbox6f, int *collisionstride, int stride)
4722 *collisionstride = stride;
4725 cnt = (num_triangles + stride - 1) / stride;
4726 *collisionbbox6f = (float *) Mem_Alloc(loadmodel->mempool, sizeof(float[6]) * cnt);
4727 for(j = 0; j < cnt; ++j)
4729 mins = &((*collisionbbox6f)[6 * j + 0]);
4730 maxs = &((*collisionbbox6f)[6 * j + 3]);
4731 for(k = 0; k < stride; ++k)
4733 tri = j * stride + k;
4734 if(tri >= num_triangles)
4736 vert = &(vertex3f[element3i[3 * tri + 0] * 3]);
4737 if(!k || vert[0] < mins[0]) mins[0] = vert[0];
4738 if(!k || vert[1] < mins[1]) mins[1] = vert[1];
4739 if(!k || vert[2] < mins[2]) mins[2] = vert[2];
4740 if(!k || vert[0] > maxs[0]) maxs[0] = vert[0];
4741 if(!k || vert[1] > maxs[1]) maxs[1] = vert[1];
4742 if(!k || vert[2] > maxs[2]) maxs[2] = vert[2];
4743 vert = &(vertex3f[element3i[3 * tri + 1] * 3]);
4744 if(vert[0] < mins[0]) mins[0] = vert[0];
4745 if(vert[1] < mins[1]) mins[1] = vert[1];
4746 if(vert[2] < mins[2]) mins[2] = vert[2];
4747 if(vert[0] > maxs[0]) maxs[0] = vert[0];
4748 if(vert[1] > maxs[1]) maxs[1] = vert[1];
4749 if(vert[2] > maxs[2]) maxs[2] = vert[2];
4750 vert = &(vertex3f[element3i[3 * tri + 2] * 3]);
4751 if(vert[0] < mins[0]) mins[0] = vert[0];
4752 if(vert[1] < mins[1]) mins[1] = vert[1];
4753 if(vert[2] < mins[2]) mins[2] = vert[2];
4754 if(vert[0] > maxs[0]) maxs[0] = vert[0];
4755 if(vert[1] > maxs[1]) maxs[1] = vert[1];
4756 if(vert[2] > maxs[2]) maxs[2] = vert[2];
4761 *collisionbbox6f = NULL;
4764 typedef struct patchtess_s
4768 // Auxiliary data used only by patch loading code in Mod_Q3BSP_LoadFaces
4771 float *originalvertex3f;
4774 #define PATCHTESS_SAME_LODGROUP(a,b) \
4776 (a).lodgroup[0] == (b).lodgroup[0] && \
4777 (a).lodgroup[1] == (b).lodgroup[1] && \
4778 (a).lodgroup[2] == (b).lodgroup[2] && \
4779 (a).lodgroup[3] == (b).lodgroup[3] && \
4780 (a).lodgroup[4] == (b).lodgroup[4] && \
4781 (a).lodgroup[5] == (b).lodgroup[5] \
4784 static void Mod_Q3BSP_LoadFaces(lump_t *l)
4786 q3dface_t *in, *oldin;
4787 msurface_t *out, *oldout;
4788 int i, oldi, j, n, count, invalidelements, patchsize[2], finalwidth, finalheight, xtess, ytess, finalvertices, finaltriangles, firstvertex, firstelement, type, oldnumtriangles, oldnumtriangles2, meshvertices, meshtriangles, numvertices, numtriangles, cxtess, cytess;
4789 float lightmaptcbase[2], lightmaptcscale[2];
4790 //int *originalelement3i;
4791 //int *originalneighbor3i;
4792 float *originalvertex3f;
4793 //float *originalsvector3f;
4794 //float *originaltvector3f;
4795 float *originalnormal3f;
4796 float *originalcolor4f;
4797 float *originaltexcoordtexture2f;
4798 float *originaltexcoordlightmap2f;
4800 patchtess_t *patchtess = NULL;
4801 int patchtesscount = 0;
4804 in = (q3dface_t *)(mod_base + l->fileofs);
4805 if (l->filelen % sizeof(*in))
4806 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
4807 count = l->filelen / sizeof(*in);
4808 out = (msurface_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4810 loadmodel->data_surfaces = out;
4811 loadmodel->num_surfaces = count;
4814 patchtess = (patchtess_t*) Mem_Alloc(tempmempool, count * sizeof(*patchtess));
4822 for (;i < count;i++, in++, out++)
4824 // check face type first
4825 type = LittleLong(in->type);
4826 if (type != Q3FACETYPE_FLAT
4827 && type != Q3FACETYPE_PATCH
4828 && type != Q3FACETYPE_MESH
4829 && type != Q3FACETYPE_FLARE)
4831 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
4835 n = LittleLong(in->textureindex);
4836 if (n < 0 || n >= loadmodel->num_textures)
4838 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
4841 out->texture = loadmodel->data_textures + n;
4842 n = LittleLong(in->effectindex);
4843 if (n < -1 || n >= loadmodel->brushq3.num_effects)
4845 if (developer.integer >= 100)
4846 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
4852 out->effect = loadmodel->brushq3.data_effects + n;
4854 if (cls.state != ca_dedicated)
4856 out->lightmaptexture = NULL;
4857 out->deluxemaptexture = r_texture_blanknormalmap;
4858 n = LittleLong(in->lightmapindex);
4861 else if (n >= loadmodel->brushq3.num_originallightmaps)
4863 if(loadmodel->brushq3.num_originallightmaps != 0)
4864 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_originallightmaps);
4869 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n >> (loadmodel->brushq3.num_lightmapmergepower * 2 + loadmodel->brushq3.deluxemapping)];
4870 if (loadmodel->brushq3.deluxemapping)
4871 out->deluxemaptexture = loadmodel->brushq3.data_deluxemaps[n >> (loadmodel->brushq3.num_lightmapmergepower * 2 + loadmodel->brushq3.deluxemapping)];
4875 firstvertex = LittleLong(in->firstvertex);
4876 numvertices = LittleLong(in->numvertices);
4877 firstelement = LittleLong(in->firstelement);
4878 numtriangles = LittleLong(in->numelements) / 3;
4879 if (numtriangles * 3 != LittleLong(in->numelements))
4881 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));
4884 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
4886 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);
4889 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
4891 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);
4896 case Q3FACETYPE_FLAT:
4897 case Q3FACETYPE_MESH:
4898 // no processing necessary
4900 case Q3FACETYPE_PATCH:
4901 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4902 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4903 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))
4905 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
4908 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4910 // convert patch to Q3FACETYPE_MESH
4911 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4912 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4913 // bound to user settings
4914 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4915 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4916 // bound to sanity settings
4917 xtess = bound(0, xtess, 1024);
4918 ytess = bound(0, ytess, 1024);
4920 // lower quality collision patches! Same procedure as before, but different cvars
4921 // convert patch to Q3FACETYPE_MESH
4922 cxtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4923 cytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4924 // bound to user settings
4925 cxtess = bound(r_subdivisions_collision_mintess.integer, cxtess, r_subdivisions_collision_maxtess.integer);
4926 cytess = bound(r_subdivisions_collision_mintess.integer, cytess, r_subdivisions_collision_maxtess.integer);
4927 // bound to sanity settings
4928 cxtess = bound(0, cxtess, 1024);
4929 cytess = bound(0, cytess, 1024);
4931 // store it for the LOD grouping step
4932 patchtess[patchtesscount].info.xsize = patchsize[0];
4933 patchtess[patchtesscount].info.ysize = patchsize[1];
4934 patchtess[patchtesscount].info.lods[PATCH_LOD_VISUAL].xtess = xtess;
4935 patchtess[patchtesscount].info.lods[PATCH_LOD_VISUAL].ytess = ytess;
4936 patchtess[patchtesscount].info.lods[PATCH_LOD_COLLISION].xtess = cxtess;
4937 patchtess[patchtesscount].info.lods[PATCH_LOD_COLLISION].ytess = cytess;
4939 patchtess[patchtesscount].surface_id = i;
4940 patchtess[patchtesscount].lodgroup[0] = in->specific.patch.mins[0];
4941 patchtess[patchtesscount].lodgroup[1] = in->specific.patch.mins[1];
4942 patchtess[patchtesscount].lodgroup[2] = in->specific.patch.mins[2];
4943 patchtess[patchtesscount].lodgroup[3] = in->specific.patch.maxs[0];
4944 patchtess[patchtesscount].lodgroup[4] = in->specific.patch.maxs[1];
4945 patchtess[patchtesscount].lodgroup[5] = in->specific.patch.maxs[2];
4946 patchtess[patchtesscount].originalvertex3f = originalvertex3f;
4949 case Q3FACETYPE_FLARE:
4950 if (developer.integer >= 100)
4951 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
4955 out->num_vertices = numvertices;
4956 out->num_triangles = numtriangles;
4957 meshvertices += out->num_vertices;
4958 meshtriangles += out->num_triangles;
4961 // Fix patches tesselations so that they make no seams
4965 for(i = 0; i < patchtesscount; ++i)
4967 for(j = i+1; j < patchtesscount; ++j)
4969 if (!PATCHTESS_SAME_LODGROUP(patchtess[i], patchtess[j]))
4972 if (Q3PatchAdjustTesselation(3, &patchtess[i].info, patchtess[i].originalvertex3f, &patchtess[j].info, patchtess[j].originalvertex3f) )
4979 // Calculate resulting number of triangles
4980 for(i = 0; i < patchtesscount; ++i)
4982 finalwidth = Q3PatchDimForTess(patchtess[i].info.xsize, patchtess[i].info.lods[PATCH_LOD_VISUAL].xtess);
4983 finalheight = Q3PatchDimForTess(patchtess[i].info.ysize,patchtess[i].info.lods[PATCH_LOD_VISUAL].ytess);
4984 numvertices = finalwidth * finalheight;
4985 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4987 oldout[patchtess[i].surface_id].num_vertices = numvertices;
4988 oldout[patchtess[i].surface_id].num_triangles = numtriangles;
4989 meshvertices += oldout[patchtess[i].surface_id].num_vertices;
4990 meshtriangles += oldout[patchtess[i].surface_id].num_triangles;
4996 Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true, false);
4999 for (;i < count && meshvertices + out->num_vertices <= loadmodel->surfmesh.num_vertices;i++, in++, out++)
5001 if (out->num_vertices < 3 || out->num_triangles < 1)
5004 type = LittleLong(in->type);
5005 firstvertex = LittleLong(in->firstvertex);
5006 firstelement = LittleLong(in->firstelement);
5007 out->num_firstvertex = meshvertices;
5008 out->num_firsttriangle = meshtriangles;
5011 case Q3FACETYPE_FLAT:
5012 case Q3FACETYPE_MESH:
5013 // no processing necessary, except for lightmap merging
5014 for (j = 0;j < out->num_vertices;j++)
5016 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
5017 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
5018 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
5019 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 0];
5020 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 1];
5021 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 2];
5022 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
5023 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
5024 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
5025 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
5026 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
5027 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
5028 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
5029 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
5031 for (j = 0;j < out->num_triangles*3;j++)
5032 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
5034 case Q3FACETYPE_PATCH:
5035 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
5036 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
5037 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
5038 originalnormal3f = loadmodel->brushq3.data_normal3f + firstvertex * 3;
5039 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
5040 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
5041 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
5043 xtess = ytess = cxtess = cytess = -1;
5044 for(j = 0; j < patchtesscount; ++j)
5045 if(patchtess[j].surface_id == i)
5047 xtess = patchtess[j].info.lods[PATCH_LOD_VISUAL].xtess;
5048 ytess = patchtess[j].info.lods[PATCH_LOD_VISUAL].ytess;
5049 cxtess = patchtess[j].info.lods[PATCH_LOD_COLLISION].xtess;
5050 cytess = patchtess[j].info.lods[PATCH_LOD_COLLISION].ytess;
5055 Con_Printf("ERROR: patch %d isn't preprocessed?!?\n", i);
5056 xtess = ytess = cxtess = cytess = 0;
5059 finalwidth = Q3PatchDimForTess(patchsize[0],xtess); //((patchsize[0] - 1) * xtess) + 1;
5060 finalheight = Q3PatchDimForTess(patchsize[1],ytess); //((patchsize[1] - 1) * ytess) + 1;
5061 finalvertices = finalwidth * finalheight;
5062 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
5063 type = Q3FACETYPE_MESH;
5064 // generate geometry
5065 // (note: normals are skipped because they get recalculated)
5066 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
5067 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalnormal3f, xtess, ytess);
5068 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
5069 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
5070 Q3PatchTesselateFloat(4, sizeof(float[4]), (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
5071 Q3PatchTriangleElements((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
5073 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);
5075 if (developer.integer >= 100)
5077 if (out->num_triangles < finaltriangles)
5078 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);
5080 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);
5082 // q3map does not put in collision brushes for curves... ugh
5083 // build the lower quality collision geometry
5084 finalwidth = Q3PatchDimForTess(patchsize[0],cxtess); //((patchsize[0] - 1) * cxtess) + 1;
5085 finalheight = Q3PatchDimForTess(patchsize[1],cytess); //((patchsize[1] - 1) * cytess) + 1;
5086 finalvertices = finalwidth * finalheight;
5087 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
5089 out->data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
5090 out->data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
5091 out->num_collisionvertices = finalvertices;
5092 out->num_collisiontriangles = finaltriangles;
5093 Q3PatchTesselateFloat(3, sizeof(float[3]), out->data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, cxtess, cytess);
5094 Q3PatchTriangleElements(out->data_collisionelement3i, finalwidth, finalheight, 0);
5096 //Mod_SnapVertices(3, out->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), 0.25);
5097 Mod_SnapVertices(3, out->num_collisionvertices, out->data_collisionvertex3f, 1);
5099 oldnumtriangles = out->num_triangles;
5100 oldnumtriangles2 = out->num_collisiontriangles;
5101 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(out->num_collisiontriangles, out->data_collisionelement3i, out->data_collisionelement3i, out->data_collisionvertex3f);
5103 // now optimize the collision mesh by finding triangle bboxes...
5104 Mod_Q3BSP_BuildBBoxes(out->data_collisionelement3i, out->num_collisiontriangles, out->data_collisionvertex3f, &out->data_collisionbbox6f, &out->num_collisionbboxstride, mod_q3bsp_curves_collisions_stride.integer);
5105 Mod_Q3BSP_BuildBBoxes(loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle, out->num_triangles, loadmodel->surfmesh.data_vertex3f, &out->data_bbox6f, &out->num_bboxstride, mod_q3bsp_curves_stride.integer);
5107 if (developer.integer >= 100)
5108 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);
5113 meshvertices += out->num_vertices;
5114 meshtriangles += out->num_triangles;
5115 for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
5116 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)
5118 if (invalidelements)
5120 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);
5121 for (j = 0;j < out->num_triangles * 3;j++)
5123 Con_Printf(" %i", (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
5124 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)
5125 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
5129 // calculate a bounding box
5130 VectorClear(out->mins);
5131 VectorClear(out->maxs);
5132 if (out->num_vertices)
5134 if (cls.state != ca_dedicated && out->lightmaptexture)
5136 // figure out which part of the merged lightmap this fits into
5137 int lightmapindex = LittleLong(in->lightmapindex) >> (loadmodel->brushq3.deluxemapping ? 1 : 0);
5138 int mergewidth = R_TextureWidth(out->lightmaptexture) / loadmodel->brushq3.lightmapsize;
5139 int mergeheight = R_TextureHeight(out->lightmaptexture) / loadmodel->brushq3.lightmapsize;
5140 lightmapindex &= mergewidth * mergeheight - 1;
5141 lightmaptcscale[0] = 1.0f / mergewidth;
5142 lightmaptcscale[1] = 1.0f / mergeheight;
5143 lightmaptcbase[0] = (lightmapindex % mergewidth) * lightmaptcscale[0];
5144 lightmaptcbase[1] = (lightmapindex / mergewidth) * lightmaptcscale[1];
5145 // modify the lightmap texcoords to match this region of the merged lightmap
5146 for (j = 0, v = loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex;j < out->num_vertices;j++, v += 2)
5148 v[0] = v[0] * lightmaptcscale[0] + lightmaptcbase[0];
5149 v[1] = v[1] * lightmaptcscale[1] + lightmaptcbase[1];
5152 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->mins);
5153 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->maxs);
5154 for (j = 1, v = (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
5156 out->mins[0] = min(out->mins[0], v[0]);
5157 out->maxs[0] = max(out->maxs[0], v[0]);
5158 out->mins[1] = min(out->mins[1], v[1]);
5159 out->maxs[1] = max(out->maxs[1], v[1]);
5160 out->mins[2] = min(out->mins[2], v[2]);
5161 out->maxs[2] = max(out->maxs[2], v[2]);
5163 out->mins[0] -= 1.0f;
5164 out->mins[1] -= 1.0f;
5165 out->mins[2] -= 1.0f;
5166 out->maxs[0] += 1.0f;
5167 out->maxs[1] += 1.0f;
5168 out->maxs[2] += 1.0f;
5170 // set lightmap styles for consistency with q1bsp
5171 //out->lightmapinfo->styles[0] = 0;
5172 //out->lightmapinfo->styles[1] = 255;
5173 //out->lightmapinfo->styles[2] = 255;
5174 //out->lightmapinfo->styles[3] = 255;
5179 for (;i < count;i++, out++)
5181 if(out->num_vertices && out->num_triangles)
5183 if(out->num_vertices == 0)
5184 Con_Printf("Mod_Q3BSP_LoadFaces: surface %d has no vertices, ignoring\n", i);
5185 if(out->num_triangles == 0)
5186 Con_Printf("Mod_Q3BSP_LoadFaces: surface %d has no triangles, ignoring\n", i);
5189 // for per pixel lighting
5190 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);
5192 // generate ushort elements array if possible
5193 if (loadmodel->surfmesh.data_element3s)
5194 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
5195 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
5197 // free the no longer needed vertex data
5198 loadmodel->brushq3.num_vertices = 0;
5199 if (loadmodel->brushq3.data_vertex3f)
5200 Mem_Free(loadmodel->brushq3.data_vertex3f);
5201 loadmodel->brushq3.data_vertex3f = NULL;
5202 loadmodel->brushq3.data_normal3f = NULL;
5203 loadmodel->brushq3.data_texcoordtexture2f = NULL;
5204 loadmodel->brushq3.data_texcoordlightmap2f = NULL;
5205 loadmodel->brushq3.data_color4f = NULL;
5206 // free the no longer needed triangle data
5207 loadmodel->brushq3.num_triangles = 0;
5208 if (loadmodel->brushq3.data_element3i)
5209 Mem_Free(loadmodel->brushq3.data_element3i);
5210 loadmodel->brushq3.data_element3i = NULL;
5213 Mem_Free(patchtess);
5216 static void Mod_Q3BSP_LoadModels(lump_t *l)
5220 int i, j, n, c, count;
5222 in = (q3dmodel_t *)(mod_base + l->fileofs);
5223 if (l->filelen % sizeof(*in))
5224 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
5225 count = l->filelen / sizeof(*in);
5226 out = (q3dmodel_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5228 loadmodel->brushq3.data_models = out;
5229 loadmodel->brushq3.num_models = count;
5231 for (i = 0;i < count;i++, in++, out++)
5233 for (j = 0;j < 3;j++)
5235 out->mins[j] = LittleFloat(in->mins[j]);
5236 out->maxs[j] = LittleFloat(in->maxs[j]);
5238 n = LittleLong(in->firstface);
5239 c = LittleLong(in->numfaces);
5240 if (n < 0 || n + c > loadmodel->num_surfaces)
5241 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)", n, n + c, loadmodel->num_surfaces);
5244 n = LittleLong(in->firstbrush);
5245 c = LittleLong(in->numbrushes);
5246 if (n < 0 || n + c > loadmodel->brush.num_brushes)
5247 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)", n, n + c, loadmodel->brush.num_brushes);
5248 out->firstbrush = n;
5249 out->numbrushes = c;
5253 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
5259 in = (int *)(mod_base + l->fileofs);
5260 if (l->filelen % sizeof(*in))
5261 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
5262 count = l->filelen / sizeof(*in);
5263 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5265 loadmodel->brush.data_leafbrushes = out;
5266 loadmodel->brush.num_leafbrushes = count;
5268 for (i = 0;i < count;i++, in++, out++)
5270 n = LittleLong(*in);
5271 if (n < 0 || n >= loadmodel->brush.num_brushes)
5272 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)", n, loadmodel->brush.num_brushes);
5277 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
5283 in = (int *)(mod_base + l->fileofs);
5284 if (l->filelen % sizeof(*in))
5285 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
5286 count = l->filelen / sizeof(*in);
5287 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5289 loadmodel->brush.data_leafsurfaces = out;
5290 loadmodel->brush.num_leafsurfaces = count;
5292 for (i = 0;i < count;i++, in++, out++)
5294 n = LittleLong(*in);
5295 if (n < 0 || n >= loadmodel->num_surfaces)
5296 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)", n, loadmodel->num_surfaces);
5301 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
5305 int i, j, n, c, count;
5307 in = (q3dleaf_t *)(mod_base + l->fileofs);
5308 if (l->filelen % sizeof(*in))
5309 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
5310 count = l->filelen / sizeof(*in);
5311 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5313 loadmodel->brush.data_leafs = out;
5314 loadmodel->brush.num_leafs = count;
5316 for (i = 0;i < count;i++, in++, out++)
5320 out->clusterindex = LittleLong(in->clusterindex);
5321 out->areaindex = LittleLong(in->areaindex);
5322 for (j = 0;j < 3;j++)
5324 // yes the mins/maxs are ints
5325 out->mins[j] = LittleLong(in->mins[j]) - 1;
5326 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5328 n = LittleLong(in->firstleafface);
5329 c = LittleLong(in->numleaffaces);
5330 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
5331 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)", n, n + c, loadmodel->brush.num_leafsurfaces);
5332 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
5333 out->numleafsurfaces = c;
5334 n = LittleLong(in->firstleafbrush);
5335 c = LittleLong(in->numleafbrushes);
5336 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
5337 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)", n, n + c, loadmodel->brush.num_leafbrushes);
5338 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
5339 out->numleafbrushes = c;
5343 static void Mod_Q3BSP_LoadNodes(lump_t *l)
5349 in = (q3dnode_t *)(mod_base + l->fileofs);
5350 if (l->filelen % sizeof(*in))
5351 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
5352 count = l->filelen / sizeof(*in);
5353 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5355 loadmodel->brush.data_nodes = out;
5356 loadmodel->brush.num_nodes = count;
5358 for (i = 0;i < count;i++, in++, out++)
5361 n = LittleLong(in->planeindex);
5362 if (n < 0 || n >= loadmodel->brush.num_planes)
5363 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5364 out->plane = loadmodel->brush.data_planes + n;
5365 for (j = 0;j < 2;j++)
5367 n = LittleLong(in->childrenindex[j]);
5370 if (n >= loadmodel->brush.num_nodes)
5371 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)", n, loadmodel->brush.num_nodes);
5372 out->children[j] = loadmodel->brush.data_nodes + n;
5377 if (n >= loadmodel->brush.num_leafs)
5378 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)", n, loadmodel->brush.num_leafs);
5379 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
5382 for (j = 0;j < 3;j++)
5384 // yes the mins/maxs are ints
5385 out->mins[j] = LittleLong(in->mins[j]) - 1;
5386 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5390 // set the parent pointers
5391 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
5394 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
5397 q3dlightgrid_t *out;
5400 in = (q3dlightgrid_t *)(mod_base + l->fileofs);
5401 if (l->filelen % sizeof(*in))
5402 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
5403 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
5404 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
5405 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
5406 loadmodel->brushq3.num_lightgrid_imins[0] = (int)ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5407 loadmodel->brushq3.num_lightgrid_imins[1] = (int)ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5408 loadmodel->brushq3.num_lightgrid_imins[2] = (int)ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5409 loadmodel->brushq3.num_lightgrid_imaxs[0] = (int)floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5410 loadmodel->brushq3.num_lightgrid_imaxs[1] = (int)floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5411 loadmodel->brushq3.num_lightgrid_imaxs[2] = (int)floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5412 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
5413 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
5414 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
5415 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
5416 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]);
5417 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]);
5419 // if lump is empty there is nothing to load, we can deal with that in the LightPoint code
5422 if (l->filelen < count * (int)sizeof(*in))
5424 Con_Printf("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_isize[0], loadmodel->brushq3.num_lightgrid_isize[1], loadmodel->brushq3.num_lightgrid_isize[2]);
5425 return; // ignore the grid if we cannot understand it
5427 if (l->filelen != count * (int)sizeof(*in))
5428 Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", (int)(count * sizeof(*in)), l->filelen);
5429 out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5430 loadmodel->brushq3.data_lightgrid = out;
5431 loadmodel->brushq3.num_lightgrid = count;
5432 // no swapping or validation necessary
5433 memcpy(out, in, count * (int)sizeof(*out));
5437 static void Mod_Q3BSP_LoadPVS(lump_t *l)
5442 if (l->filelen == 0)
5445 // unvised maps often have cluster indices even without pvs, so check
5446 // leafs to find real number of clusters
5447 loadmodel->brush.num_pvsclusters = 1;
5448 for (i = 0;i < loadmodel->brush.num_leafs;i++)
5449 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
5452 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
5453 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5454 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5455 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
5459 in = (q3dpvs_t *)(mod_base + l->fileofs);
5461 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
5463 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
5464 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
5465 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
5466 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
5467 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5468 if (l->filelen < totalchains + (int)sizeof(*in))
5469 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);
5471 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5472 memcpy(loadmodel->brush.data_pvsclusters, (unsigned char *)(in + 1), totalchains);
5475 static void Mod_Q3BSP_LightPoint(dp_model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
5477 int i, j, k, index[3];
5478 float transformed[3], blend1, blend2, blend, stylescale;
5479 q3dlightgrid_t *a, *s;
5481 // scale lighting by lightstyle[0] so that darkmode in dpmod works properly
5482 stylescale = r_refdef.scene.rtlightstylevalue[0];
5484 if (!model->brushq3.num_lightgrid)
5486 ambientcolor[0] = stylescale;
5487 ambientcolor[1] = stylescale;
5488 ambientcolor[2] = stylescale;
5492 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
5493 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
5494 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
5495 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
5496 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
5497 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
5498 index[0] = (int)floor(transformed[0]);
5499 index[1] = (int)floor(transformed[1]);
5500 index[2] = (int)floor(transformed[2]);
5501 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
5503 // now lerp the values
5504 VectorClear(diffusenormal);
5505 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
5506 for (k = 0;k < 2;k++)
5508 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
5509 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
5511 for (j = 0;j < 2;j++)
5513 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
5514 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
5516 for (i = 0;i < 2;i++)
5518 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0]))) * stylescale;
5519 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
5521 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
5522 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
5523 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
5524 // this uses the mod_md3_sin table because the values are
5525 // already in the 0-255 range, the 64+ bias fetches a cosine
5526 // instead of a sine value
5527 diffusenormal[0] += blend * (mod_md3_sin[64 + s->diffuseyaw] * mod_md3_sin[s->diffusepitch]);
5528 diffusenormal[1] += blend * (mod_md3_sin[ s->diffuseyaw] * mod_md3_sin[s->diffusepitch]);
5529 diffusenormal[2] += blend * (mod_md3_sin[64 + s->diffusepitch]);
5530 //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)));
5535 // normalize the light direction before turning
5536 VectorNormalize(diffusenormal);
5537 //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]);
5540 static int Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(mnode_t *node, double p1[3], double p2[3])
5543 double midf, mid[3];
5549 // find the point distances
5550 mplane_t *plane = node->plane;
5551 if (plane->type < 3)
5553 t1 = p1[plane->type] - plane->dist;
5554 t2 = p2[plane->type] - plane->dist;
5558 t1 = DotProduct (plane->normal, p1) - plane->dist;
5559 t2 = DotProduct (plane->normal, p2) - plane->dist;
5566 node = node->children[1];
5575 node = node->children[0];
5581 midf = t1 / (t1 - t2);
5582 VectorLerp(p1, midf, p2, mid);
5584 // recurse both sides, front side first
5585 // return 2 if empty is followed by solid (hit something)
5586 // do not return 2 if both are solid or both empty,
5587 // or if start is solid and end is empty
5588 // as these degenerate cases usually indicate the eye is in solid and
5589 // should see the target point anyway
5590 ret = Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ], p1, mid);
5593 ret = Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ^ 1], mid, p2);
5598 return ((mleaf_t *)node)->clusterindex < 0;
5601 static qboolean Mod_Q3BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end)
5603 if (model->brush.submodel || mod_q3bsp_tracelineofsight_brushes.integer)
5606 model->TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK);
5607 return trace.fraction == 1;
5611 double tracestart[3], traceend[3];
5612 VectorCopy(start, tracestart);
5613 VectorCopy(end, traceend);
5614 return !Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(model->brush.data_nodes, tracestart, traceend);
5618 static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, dp_model_t *model, mnode_t *node, const vec3_t point, int markframe)
5623 // find which leaf the point is in
5625 node = node->children[(node->plane->type < 3 ? point[node->plane->type] : DotProduct(point, node->plane->normal)) < node->plane->dist];
5626 // point trace the brushes
5627 leaf = (mleaf_t *)node;
5628 for (i = 0;i < leaf->numleafbrushes;i++)
5630 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5631 if (brush && brush->markframe != markframe && BoxesOverlap(point, point, brush->mins, brush->maxs))
5633 brush->markframe = markframe;
5634 Collision_TracePointBrushFloat(trace, point, brush);
5637 // can't do point traces on curves (they have no thickness)
5640 static void Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace_t *trace, dp_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)
5642 int i, startside, endside;
5643 float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
5645 msurface_t *surface;
5648 // walk the tree until we hit a leaf, recursing for any split cases
5651 // abort if this part of the bsp tree can not be hit by this trace
5652 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5654 plane = node->plane;
5655 // axial planes are much more common than non-axial, so an optimized
5656 // axial case pays off here
5657 if (plane->type < 3)
5659 dist1 = start[plane->type] - plane->dist;
5660 dist2 = end[plane->type] - plane->dist;
5664 dist1 = DotProduct(start, plane->normal) - plane->dist;
5665 dist2 = DotProduct(end, plane->normal) - plane->dist;
5667 startside = dist1 < 0;
5668 endside = dist2 < 0;
5669 if (startside == endside)
5671 // most of the time the line fragment is on one side of the plane
5672 node = node->children[startside];
5676 // line crosses node plane, split the line
5677 dist1 = PlaneDiff(linestart, plane);
5678 dist2 = PlaneDiff(lineend, plane);
5679 midfrac = dist1 / (dist1 - dist2);
5680 VectorLerp(linestart, midfrac, lineend, mid);
5681 // take the near side first
5682 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5683 // if we found an impact on the front side, don't waste time
5684 // exploring the far side
5685 if (midfrac <= trace->realfraction)
5686 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5690 // abort if this part of the bsp tree can not be hit by this trace
5691 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5694 nodesegmentmins[0] = min(start[0], end[0]) - 1;
5695 nodesegmentmins[1] = min(start[1], end[1]) - 1;
5696 nodesegmentmins[2] = min(start[2], end[2]) - 1;
5697 nodesegmentmaxs[0] = max(start[0], end[0]) + 1;
5698 nodesegmentmaxs[1] = max(start[1], end[1]) + 1;
5699 nodesegmentmaxs[2] = max(start[2], end[2]) + 1;
5700 // line trace the brushes
5701 leaf = (mleaf_t *)node;
5702 for (i = 0;i < leaf->numleafbrushes;i++)
5704 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5705 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5707 brush->markframe = markframe;
5708 Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
5711 // can't do point traces on curves (they have no thickness)
5712 if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
5714 // line trace the curves
5715 for (i = 0;i < leaf->numleafsurfaces;i++)
5717 surface = model->data_surfaces + leaf->firstleafsurface[i];
5718 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5720 surface->collisionmarkframe = markframe;
5721 Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->num_collisionbboxstride, surface->data_collisionbbox6f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5727 static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, dp_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)
5733 msurface_t *surface;
5735 float nodesegmentmins[3], nodesegmentmaxs[3];
5736 // walk the tree until we hit a leaf, recursing for any split cases
5739 // abort if this part of the bsp tree can not be hit by this trace
5740 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5742 plane = node->plane;
5743 // axial planes are much more common than non-axial, so an optimized
5744 // axial case pays off here
5745 if (plane->type < 3)
5747 // this is an axial plane, compare bounding box directly to it and
5748 // recurse sides accordingly
5749 // recurse down node sides
5750 // use an inlined axial BoxOnPlaneSide to slightly reduce overhead
5751 //sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, plane);
5752 //sides = ((segmentmaxs[plane->type] >= plane->dist) | ((segmentmins[plane->type] < plane->dist) << 1));
5753 sides = ((segmentmaxs[plane->type] >= plane->dist) + ((segmentmins[plane->type] < plane->dist) * 2));
5757 // this is a non-axial plane, so check if the start and end boxes
5758 // are both on one side of the plane to handle 'diagonal' cases
5759 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, plane);
5763 // segment crosses plane
5764 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5767 // if sides == 0 then the trace itself is bogus (Not A Number values),
5768 // in this case we simply pretend the trace hit nothing
5770 return; // ERROR: NAN bounding box!
5771 // take whichever side the segment box is on
5772 node = node->children[sides - 1];
5774 // abort if this part of the bsp tree can not be hit by this trace
5775 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5777 nodesegmentmins[0] = max(segmentmins[0], node->mins[0] - 1);
5778 nodesegmentmins[1] = max(segmentmins[1], node->mins[1] - 1);
5779 nodesegmentmins[2] = max(segmentmins[2], node->mins[2] - 1);
5780 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0] + 1);
5781 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1] + 1);
5782 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2] + 1);
5784 leaf = (mleaf_t *)node;
5785 for (i = 0;i < leaf->numleafbrushes;i++)
5787 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5788 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5790 brush->markframe = markframe;
5791 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
5794 if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer)
5796 for (i = 0;i < leaf->numleafsurfaces;i++)
5798 surface = model->data_surfaces + leaf->firstleafsurface[i];
5799 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5801 surface->collisionmarkframe = markframe;
5802 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->num_collisionbboxstride, surface->data_collisionbbox6f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5808 static int markframe = 0;
5810 static void Mod_Q3BSP_TracePoint(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, int hitsupercontentsmask)
5814 memset(trace, 0, sizeof(*trace));
5815 trace->fraction = 1;
5816 trace->realfraction = 1;
5817 trace->hitsupercontentsmask = hitsupercontentsmask;
5818 if (model->brush.submodel)
5820 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5821 if (brush->colbrushf)
5822 Collision_TracePointBrushFloat(trace, start, brush->colbrushf);
5825 Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, ++markframe);
5828 static void Mod_Q3BSP_TraceLine(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask)
5831 float segmentmins[3], segmentmaxs[3];
5832 msurface_t *surface;
5835 if (VectorCompare(start, end))
5837 Mod_Q3BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask);
5841 memset(trace, 0, sizeof(*trace));
5842 trace->fraction = 1;
5843 trace->realfraction = 1;
5844 trace->hitsupercontentsmask = hitsupercontentsmask;
5845 segmentmins[0] = min(start[0], end[0]) - 1;
5846 segmentmins[1] = min(start[1], end[1]) - 1;
5847 segmentmins[2] = min(start[2], end[2]) - 1;
5848 segmentmaxs[0] = max(start[0], end[0]) + 1;
5849 segmentmaxs[1] = max(start[1], end[1]) + 1;
5850 segmentmaxs[2] = max(start[2], end[2]) + 1;
5851 if (model->brush.submodel)
5853 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5854 if (brush->colbrushf)
5855 Collision_TraceLineBrushFloat(trace, start, end, brush->colbrushf, brush->colbrushf);
5856 if (mod_q3bsp_curves_collisions.integer)
5857 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5858 if (surface->num_collisiontriangles)
5859 Collision_TraceLineTriangleMeshFloat(trace, start, end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->num_collisionbboxstride, surface->data_collisionbbox6f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5862 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, end, 0, 1, start, end, ++markframe, segmentmins, segmentmaxs);
5865 static void Mod_Q3BSP_TraceBox(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
5868 float segmentmins[3], segmentmaxs[3];
5869 msurface_t *surface;
5871 colboxbrushf_t thisbrush_start, thisbrush_end;
5872 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
5874 if (mod_q3bsp_optimizedtraceline.integer && VectorCompare(boxmins, boxmaxs))
5876 vec3_t shiftstart, shiftend;
5877 VectorAdd(start, boxmins, shiftstart);
5878 VectorAdd(end, boxmins, shiftend);
5879 if (VectorCompare(start, end))
5880 Mod_Q3BSP_TracePoint(model, frameblend, skeleton, trace, shiftstart, hitsupercontentsmask);
5883 Mod_Q3BSP_TraceLine(model, frameblend, skeleton, trace, shiftstart, shiftend, hitsupercontentsmask);
5884 VectorSubtract(trace->endpos, boxmins, trace->endpos);
5889 // box trace, performed as brush trace
5890 memset(trace, 0, sizeof(*trace));
5891 trace->fraction = 1;
5892 trace->realfraction = 1;
5893 trace->hitsupercontentsmask = hitsupercontentsmask;
5894 segmentmins[0] = min(start[0], end[0]) + boxmins[0] - 1;
5895 segmentmins[1] = min(start[1], end[1]) + boxmins[1] - 1;
5896 segmentmins[2] = min(start[2], end[2]) + boxmins[2] - 1;
5897 segmentmaxs[0] = max(start[0], end[0]) + boxmaxs[0] + 1;
5898 segmentmaxs[1] = max(start[1], end[1]) + boxmaxs[1] + 1;
5899 segmentmaxs[2] = max(start[2], end[2]) + boxmaxs[2] + 1;
5900 VectorAdd(start, boxmins, boxstartmins);
5901 VectorAdd(start, boxmaxs, boxstartmaxs);
5902 VectorAdd(end, boxmins, boxendmins);
5903 VectorAdd(end, boxmaxs, boxendmaxs);
5904 Collision_BrushForBox(&thisbrush_start, boxstartmins, boxstartmaxs, 0, 0, NULL);
5905 Collision_BrushForBox(&thisbrush_end, boxendmins, boxendmaxs, 0, 0, NULL);
5906 if (model->brush.submodel)
5908 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5909 if (brush->colbrushf)
5910 Collision_TraceBrushBrushFloat(trace, &thisbrush_start.brush, &thisbrush_end.brush, brush->colbrushf, brush->colbrushf);
5911 if (mod_q3bsp_curves_collisions.integer)
5912 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5913 if (surface->num_collisiontriangles)
5914 Collision_TraceBrushTriangleMeshFloat(trace, &thisbrush_start.brush, &thisbrush_end.brush, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->num_collisionbboxstride, surface->data_collisionbbox6f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5917 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, model->brush.data_nodes, &thisbrush_start.brush, &thisbrush_end.brush, ++markframe, segmentmins, segmentmaxs);
5920 static int Mod_Q3BSP_PointSuperContents(struct model_s *model, int frame, const vec3_t point)
5923 int supercontents = 0;
5925 // test if the point is inside each brush
5926 if (model->brush.submodel)
5928 // submodels are effectively one leaf
5929 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5930 if (brush->colbrushf && Collision_PointInsideBrushFloat(point, brush->colbrushf))
5931 supercontents |= brush->colbrushf->supercontents;
5935 mnode_t *node = model->brush.data_nodes;
5937 // find which leaf the point is in
5939 node = node->children[(node->plane->type < 3 ? point[node->plane->type] : DotProduct(point, node->plane->normal)) < node->plane->dist];
5940 leaf = (mleaf_t *)node;
5941 // now check the brushes in the leaf
5942 for (i = 0;i < leaf->numleafbrushes;i++)
5944 brush = model->brush.data_brushes + leaf->firstleafbrush[i];
5945 if (brush->colbrushf && Collision_PointInsideBrushFloat(point, brush->colbrushf))
5946 supercontents |= brush->colbrushf->supercontents;
5949 return supercontents;
5952 static int Mod_Q3BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativecontents)
5954 int supercontents = 0;
5955 if (nativecontents & CONTENTSQ3_SOLID)
5956 supercontents |= SUPERCONTENTS_SOLID;
5957 if (nativecontents & CONTENTSQ3_WATER)
5958 supercontents |= SUPERCONTENTS_WATER;
5959 if (nativecontents & CONTENTSQ3_SLIME)
5960 supercontents |= SUPERCONTENTS_SLIME;
5961 if (nativecontents & CONTENTSQ3_LAVA)
5962 supercontents |= SUPERCONTENTS_LAVA;
5963 if (nativecontents & CONTENTSQ3_BODY)
5964 supercontents |= SUPERCONTENTS_BODY;
5965 if (nativecontents & CONTENTSQ3_CORPSE)
5966 supercontents |= SUPERCONTENTS_CORPSE;
5967 if (nativecontents & CONTENTSQ3_NODROP)
5968 supercontents |= SUPERCONTENTS_NODROP;
5969 if (nativecontents & CONTENTSQ3_PLAYERCLIP)
5970 supercontents |= SUPERCONTENTS_PLAYERCLIP;
5971 if (nativecontents & CONTENTSQ3_MONSTERCLIP)
5972 supercontents |= SUPERCONTENTS_MONSTERCLIP;
5973 if (nativecontents & CONTENTSQ3_DONOTENTER)
5974 supercontents |= SUPERCONTENTS_DONOTENTER;
5975 if (nativecontents & CONTENTSQ3_BOTCLIP)
5976 supercontents |= SUPERCONTENTS_BOTCLIP;
5977 if (!(nativecontents & CONTENTSQ3_TRANSLUCENT))
5978 supercontents |= SUPERCONTENTS_OPAQUE;
5979 return supercontents;
5982 static int Mod_Q3BSP_NativeContentsFromSuperContents(dp_model_t *model, int supercontents)
5984 int nativecontents = 0;
5985 if (supercontents & SUPERCONTENTS_SOLID)
5986 nativecontents |= CONTENTSQ3_SOLID;
5987 if (supercontents & SUPERCONTENTS_WATER)
5988 nativecontents |= CONTENTSQ3_WATER;
5989 if (supercontents & SUPERCONTENTS_SLIME)
5990 nativecontents |= CONTENTSQ3_SLIME;
5991 if (supercontents & SUPERCONTENTS_LAVA)
5992 nativecontents |= CONTENTSQ3_LAVA;
5993 if (supercontents & SUPERCONTENTS_BODY)
5994 nativecontents |= CONTENTSQ3_BODY;
5995 if (supercontents & SUPERCONTENTS_CORPSE)
5996 nativecontents |= CONTENTSQ3_CORPSE;
5997 if (supercontents & SUPERCONTENTS_NODROP)
5998 nativecontents |= CONTENTSQ3_NODROP;
5999 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
6000 nativecontents |= CONTENTSQ3_PLAYERCLIP;
6001 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
6002 nativecontents |= CONTENTSQ3_MONSTERCLIP;
6003 if (supercontents & SUPERCONTENTS_DONOTENTER)
6004 nativecontents |= CONTENTSQ3_DONOTENTER;
6005 if (supercontents & SUPERCONTENTS_BOTCLIP)
6006 nativecontents |= CONTENTSQ3_BOTCLIP;
6007 if (!(supercontents & SUPERCONTENTS_OPAQUE))
6008 nativecontents |= CONTENTSQ3_TRANSLUCENT;
6009 return nativecontents;
6012 void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
6017 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
6018 node = node->children[1];
6020 numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
6021 if (loadmodel->brush.num_leafs < numleafs)
6022 loadmodel->brush.num_leafs = numleafs;
6025 void Mod_Q3BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
6027 int i, j, numshadowmeshtriangles, lumps;
6028 q3dheader_t *header;
6029 float corner[3], yawradius, modelradius;
6030 msurface_t *surface;
6032 mod->modeldatatypestring = "Q3BSP";
6034 mod->type = mod_brushq3;
6035 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
6038 header = (q3dheader_t *)buffer;
6039 if((char *) bufferend < (char *) buffer + sizeof(q3dheader_t))
6040 Host_Error("Mod_Q3BSP_Load: %s is smaller than its header", mod->name);
6042 i = LittleLong(header->version);
6043 if (i != Q3BSPVERSION && i != Q3BSPVERSION_IG && i != Q3BSPVERSION_LIVE)
6044 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
6046 mod->soundfromcenter = true;
6047 mod->TraceBox = Mod_Q3BSP_TraceBox;
6048 mod->TraceLine = Mod_Q3BSP_TraceLine;
6049 mod->TracePoint = Mod_Q3BSP_TracePoint;
6050 mod->PointSuperContents = Mod_Q3BSP_PointSuperContents;
6051 mod->brush.TraceLineOfSight = Mod_Q3BSP_TraceLineOfSight;
6052 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
6053 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
6054 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
6055 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
6056 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
6057 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
6058 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
6059 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
6060 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
6061 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
6062 mod->brush.AmbientSoundLevelsForPoint = NULL;
6063 mod->brush.RoundUpToHullSize = NULL;
6064 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
6065 mod->Draw = R_Q1BSP_Draw;
6066 mod->DrawDepth = R_Q1BSP_DrawDepth;
6067 mod->DrawDebug = R_Q1BSP_DrawDebug;
6068 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
6069 mod->CompileShadowMap = R_Q1BSP_CompileShadowMap;
6070 mod->DrawShadowMap = R_Q1BSP_DrawShadowMap;
6071 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
6072 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
6073 mod->DrawLight = R_Q1BSP_DrawLight;
6075 mod_base = (unsigned char *)header;
6077 // swap all the lumps
6078 header->ident = LittleLong(header->ident);
6079 header->version = LittleLong(header->version);
6080 lumps = (header->version == Q3BSPVERSION_LIVE) ? Q3HEADER_LUMPS_LIVE : Q3HEADER_LUMPS;
6081 for (i = 0;i < lumps;i++)
6083 j = (header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs));
6084 if((char *) bufferend < (char *) buffer + j)
6085 Host_Error("Mod_Q3BSP_Load: %s has a lump that starts outside the file!", mod->name);
6086 j += (header->lumps[i].filelen = LittleLong(header->lumps[i].filelen));
6087 if((char *) bufferend < (char *) buffer + j)
6088 Host_Error("Mod_Q3BSP_Load: %s has a lump that ends outside the file!", mod->name);
6091 * NO, do NOT clear them!
6092 * they contain actual data referenced by other stuff.
6093 * Instead, before using the advertisements lump, check header->versio
6095 * Sorry, but otherwise it breaks memory of the first lump.
6096 for (i = lumps;i < Q3HEADER_LUMPS_MAX;i++)
6098 header->lumps[i].fileofs = 0;
6099 header->lumps[i].filelen = 0;
6103 mod->brush.qw_md4sum = 0;
6104 mod->brush.qw_md4sum2 = 0;
6105 for (i = 0;i < lumps;i++)
6107 if (i == Q3LUMP_ENTITIES)
6109 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
6110 if (i == Q3LUMP_PVS || i == Q3LUMP_LEAFS || i == Q3LUMP_NODES)
6112 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
6114 // all this checksumming can take a while, so let's send keepalives here too
6115 CL_KeepaliveMessage(false);
6118 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
6119 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
6120 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
6121 if (header->version == Q3BSPVERSION_IG)
6122 Mod_Q3BSP_LoadBrushSides_IG(&header->lumps[Q3LUMP_BRUSHSIDES]);
6124 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
6125 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
6126 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
6127 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
6128 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
6129 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS], &header->lumps[Q3LUMP_FACES]);
6130 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
6131 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
6132 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
6133 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
6134 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
6135 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
6136 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
6137 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
6138 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
6140 // the MakePortals code works fine on the q3bsp data as well
6141 Mod_Q1BSP_MakePortals();
6143 // FIXME: shader alpha should replace r_wateralpha support in q3bsp
6144 loadmodel->brush.supportwateralpha = true;
6146 // make a single combined shadow mesh to allow optimized shadow volume creation
6147 numshadowmeshtriangles = 0;
6148 if (cls.state != ca_dedicated)
6150 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
6152 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
6153 numshadowmeshtriangles += surface->num_triangles;
6155 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
6156 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
6157 if (surface->num_triangles > 0)
6158 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));
6159 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true, false);
6160 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
6163 loadmodel->brush.num_leafs = 0;
6164 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
6166 if (loadmodel->brush.numsubmodels)
6167 loadmodel->brush.submodels = (dp_model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
6170 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
6175 // duplicate the basic information
6176 dpsnprintf(name, sizeof(name), "*%i", i);
6177 mod = Mod_FindName(name, loadmodel->name);
6178 // copy the base model to this one
6180 // rename the clone back to its proper name
6181 strlcpy(mod->name, name, sizeof(mod->name));
6182 mod->brush.parentmodel = loadmodel;
6183 // textures and memory belong to the main model
6184 mod->texturepool = NULL;
6185 mod->mempool = NULL;
6186 mod->brush.GetPVS = NULL;
6187 mod->brush.FatPVS = NULL;
6188 mod->brush.BoxTouchingPVS = NULL;
6189 mod->brush.BoxTouchingLeafPVS = NULL;
6190 mod->brush.BoxTouchingVisibleLeafs = NULL;
6191 mod->brush.FindBoxClusters = NULL;
6192 mod->brush.LightPoint = NULL;
6193 mod->brush.AmbientSoundLevelsForPoint = NULL;
6195 mod->brush.submodel = i;
6196 if (loadmodel->brush.submodels)
6197 loadmodel->brush.submodels[i] = mod;
6199 // make the model surface list (used by shadowing/lighting)
6200 mod->firstmodelsurface = mod->brushq3.data_models[i].firstface;
6201 mod->nummodelsurfaces = mod->brushq3.data_models[i].numfaces;
6202 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
6203 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
6204 mod->sortedmodelsurfaces = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->sortedmodelsurfaces));
6205 Mod_MakeSortedSurfaces(mod);
6207 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
6208 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
6209 // enlarge the bounding box to enclose all geometry of this model,
6210 // because q3map2 sometimes lies (mostly to affect the lightgrid),
6211 // which can in turn mess up the farclip (as well as culling when
6212 // outside the level - an unimportant concern)
6214 //printf("Editing model %d... BEFORE re-bounding: %f %f %f - %f %f %f\n", i, mod->normalmins[0], mod->normalmins[1], mod->normalmins[2], mod->normalmaxs[0], mod->normalmaxs[1], mod->normalmaxs[2]);
6215 for (j = 0;j < mod->nummodelsurfaces;j++)
6217 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
6218 const float *v = mod->surfmesh.data_vertex3f + 3 * surface->num_firstvertex;
6220 if (!surface->num_vertices)
6222 for (k = 0;k < surface->num_vertices;k++, v += 3)
6224 mod->normalmins[0] = min(mod->normalmins[0], v[0]);
6225 mod->normalmins[1] = min(mod->normalmins[1], v[1]);
6226 mod->normalmins[2] = min(mod->normalmins[2], v[2]);
6227 mod->normalmaxs[0] = max(mod->normalmaxs[0], v[0]);
6228 mod->normalmaxs[1] = max(mod->normalmaxs[1], v[1]);
6229 mod->normalmaxs[2] = max(mod->normalmaxs[2], v[2]);
6232 //printf("Editing model %d... AFTER re-bounding: %f %f %f - %f %f %f\n", i, mod->normalmins[0], mod->normalmins[1], mod->normalmins[2], mod->normalmaxs[0], mod->normalmaxs[1], mod->normalmaxs[2]);
6233 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
6234 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
6235 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
6236 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
6237 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
6238 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
6239 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
6240 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
6241 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
6242 mod->yawmins[2] = mod->normalmins[2];
6243 mod->yawmaxs[2] = mod->normalmaxs[2];
6244 mod->radius = modelradius;
6245 mod->radius2 = modelradius * modelradius;
6247 // this gets altered below if sky or water is used
6248 mod->DrawSky = NULL;
6249 mod->DrawAddWaterPlanes = NULL;
6251 for (j = 0;j < mod->nummodelsurfaces;j++)
6252 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->basematerialflags & MATERIALFLAG_SKY)
6254 if (j < mod->nummodelsurfaces)
6255 mod->DrawSky = R_Q1BSP_DrawSky;
6257 for (j = 0;j < mod->nummodelsurfaces;j++)
6258 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION))
6260 if (j < mod->nummodelsurfaces)
6261 mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
6265 void Mod_IBSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
6267 int i = LittleLong(((int *)buffer)[1]);
6268 if (i == Q3BSPVERSION || i == Q3BSPVERSION_IG || i == Q3BSPVERSION_LIVE)
6269 Mod_Q3BSP_Load(mod,buffer, bufferend);
6270 else if (i == Q2BSPVERSION)
6271 Mod_Q2BSP_Load(mod,buffer, bufferend);
6273 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i", i);
6276 void Mod_MAP_Load(dp_model_t *mod, void *buffer, void *bufferend)
6278 Host_Error("Mod_MAP_Load: not yet implemented");
6282 typedef struct objvertex_s
6290 typedef struct objtriangle_s
6292 objvertex_t vertex[3];
6294 // these fields are used only in conversion to surfaces
6297 int surfacevertexindex[3];
6298 float edgeplane[3][4];
6304 struct objnode_s *children[2];
6305 struct objnode_s *parent;
6306 objtriangle_t *triangles;
6315 objnode_t *Mod_OBJ_BSPNodeForTriangles(objnode_t *parent, objtriangle_t *triangles, int numtriangles, const float *mins, const float *maxs, mem_expandablearray_t *nodesarray, int maxclippedtriangles, objtriangle_t *clippedfronttriangles, objtriangle_t *clippedbacktriangles)
6321 float bestnormal[3];
6326 int numfronttriangles;
6327 int numbacktriangles;
6332 float outfrontpoints[5][3];
6333 float outbackpoints[5][3];
6334 int neededfrontpoints;
6335 int neededbackpoints;
6339 node = (objnode_t *)Mem_ExpandableArray_AllocRecord(array);
6340 node->parent = parent;
6343 VectorCopy(triangles[0].vertex[0].v, mins);
6344 VectorCopy(triangles[0].vertex[0].v, maxs);
6346 else if (parent && parent->children[0] == node)
6348 VectorCopy(parent->mins, mins);
6349 Vectorcopy(parent->maxs, maxs);
6351 else if (parent && parent->children[1] == node)
6353 VectorCopy(parent->mins, mins);
6354 Vectorcopy(parent->maxs, maxs);
6361 for (i = 0;i < numtriangles;i++)
6363 for (j = 0;j < 3;j++)
6365 mins[0] = min(mins[0], triangles[i].vertex[j].v[0]);
6366 mins[1] = min(mins[1], triangles[i].vertex[j].v[1]);
6367 mins[2] = min(mins[2], triangles[i].vertex[j].v[2]);
6368 maxs[0] = max(maxs[0], triangles[i].vertex[j].v[0]);
6369 maxs[1] = max(maxs[1], triangles[i].vertex[j].v[1]);
6370 maxs[2] = max(maxs[2], triangles[i].vertex[j].v[2]);
6373 VectorCopy(mins, node->mins);
6374 VectorCopy(maxs, node->maxs);
6375 if (numtriangles <= mod_obj_leaftriangles.integer)
6378 loadmodel->brush.num_leafs++;
6379 node->triangles = triangles;
6380 node->numtriangles = numtriangles;
6385 loadmodel->brush.num_nodes++;
6386 // pick a splitting plane from the various choices available to us...
6387 // early splits simply halve the interval
6389 VectorClear(bestnormal);
6391 if (numtriangles <= mod_obj_splitterlimit.integer)
6392 limit = numtriangles;
6395 for (i = -3;i < limit;i++)
6399 // first we try 3 axial splits (kdtree-like)
6401 VectorClear(normal);
6403 dist = (mins[j] + maxs[j]) * 0.5f;
6407 // then we try each triangle plane
6408 TriangleNormal(triangles[i].vertex[0].v, triangles[i].vertex[1].v, triangles[i].vertex[2].v, normal);
6409 VectorNormalize(normal);
6410 dist = DotProduct(normal, triangles[i].vertex[0].v);
6411 // use positive axial values whenever possible
6412 if (normal[0] == -1)
6414 if (normal[1] == -1)
6416 if (normal[2] == -1)
6418 // skip planes that match the current best
6419 if (VectorCompare(normal, bestnormal) && dist == bestdist)
6426 for (j = 0;j < numtriangles;j++)
6428 dists[0] = DotProduct(normal, triangles[j].vertex[0].v) - dist;
6429 dists[1] = DotProduct(normal, triangles[j].vertex[1].v) - dist;
6430 dists[2] = DotProduct(normal, triangles[j].vertex[2].v) - dist;
6431 if (dists[0] < -DIST_EPSILON || dists[1] < -DIST_EPSILON || dists[2] < -DIST_EPSILON)
6433 if (dists[0] > DIST_EPSILON || dists[1] > DIST_EPSILON || dists[2] > DIST_EPSILON)
6438 else if (dists[0] > DIST_EPSILON || dists[1] > DIST_EPSILON || dists[2] > DIST_EPSILON)
6443 // score is supposed to:
6444 // prefer axial splits
6445 // prefer evenly dividing the input triangles
6446 // prefer triangles on the plane
6447 // avoid triangles crossing the plane
6448 score = count_on*count_on - count_both*count_both + min(count_front, count_back)*(count_front+count_back);
6449 if (normal[0] == 1 || normal[1] == 1 || normal[2] == 1)
6451 if (i == -3 || bestscore < score)
6453 VectorCopy(normal, bestnormal);
6459 // now we have chosen an optimal split plane...
6461 // divide triangles by the splitting plane
6462 numfronttriangles = 0;
6463 numbacktriangles = 0;
6464 for (i = 0;i < numtriangles;i++)
6466 neededfrontpoints = 0;
6467 neededbackpoints = 0;
6469 PolygonF_Divide(3, triangles[i].vertex[0].v, bestnormal[0], bestnormal[1], bestnormal[2], bestdist, DIST_EPSILON, 5, outfrontpoints[0], &neededfrontpoints, 5, outbackpoints[0], &neededbackpoints, &countonpoints);
6470 if (countonpoints > 1)
6472 // triangle lies on plane, assign it to one child only
6473 TriangleNormal(triangles[i].vertex[0].v, triangles[i].vertex[1].v, triangles[i].vertex[2].v, normal);
6474 if (DotProduct(bestnormal, normal) >= 0)
6476 // assign to front side child
6477 obj_fronttriangles[numfronttriangles++] = triangles[i];
6481 // assign to back side child
6482 obj_backtriangles[numbacktriangles++] = triangles[i];
6487 // convert clipped polygons to triangles
6488 for (j = 0;j < neededfrontpoints-2;j++)
6490 obj_fronttriangles[numfronttriangles] = triangles[i];
6491 VectorCopy(outfrontpoints[0], obj_fronttriangles[numfronttriangles].vertex[0].v);
6492 VectorCopy(outfrontpoints[j+1], obj_fronttriangles[numfronttriangles].vertex[1].v);
6493 VectorCopy(outfrontpoints[j+2], obj_fronttriangles[numfronttriangles].vertex[2].v);
6494 numfronttriangles++;
6496 for (j = 0;j < neededbackpoints-2;j++)
6498 obj_backtriangles[numbacktriangles] = triangles[i];
6499 VectorCopy(outbackpoints[0], obj_backtriangles[numbacktriangles].vertex[0].v);
6500 VectorCopy(outbackpoints[j+1], obj_backtriangles[numbacktriangles].vertex[1].v);
6501 VectorCopy(outbackpoints[j+2], obj_backtriangles[numbacktriangles].vertex[2].v);
6507 // now copy the triangles out of the big buffer
6508 if (numfronttriangles)
6510 fronttriangles = Mem_Alloc(loadmodel->mempool, fronttriangles * sizeof(*fronttriangles));
6511 memcpy(fronttriangles, obj_fronttriangles, numfronttriangles * sizeof(*fronttriangles));
6514 fronttriangles = NULL;
6515 if (numbacktriangles)
6517 backtriangles = Mem_Alloc(loadmodel->mempool, backtriangles * sizeof(*backtriangles));
6518 memcpy(backtriangles, obj_backtriangles, numbacktriangles * sizeof(*backtriangles));
6521 backtriangles = NULL;
6523 // free the original triangles we were given
6525 Mem_Free(triangles);
6529 // now create the children...
6530 node->children[0] = Mod_OBJ_BSPNodeForTriangles(node, fronttriangles, numfronttriangles, frontmins, frontmaxs, nodesarray, maxclippedtriangles, clippedfronttriangles, clippedbacktriangles);
6531 node->children[1] = Mod_OBJ_BSPNodeForTriangles(node, backtriangles, numbacktriangles, backmins, backmaxs, nodesarray, maxclippedtriangles, clippedfronttriangles, clippedbacktriangles);
6535 void Mod_OBJ_SnapVertex(float *v)
6538 float a = mod_obj_vertexprecision.value;
6540 v[0] -= floor(v[0] * a + 0.5f) * b;
6541 v[1] -= floor(v[1] * a + 0.5f) * b;
6542 v[2] -= floor(v[2] * a + 0.5f) * b;
6545 void Mod_OBJ_ConvertBSPNode(objnode_t *objnode, mnode_t *mnodeparent)
6547 if (objnode->children[0])
6549 // convert to mnode_t
6550 mnode_t *mnode = loadmodel->brush.data_nodes + loadmodel->brush.num_nodes++;
6551 mnode->parent = mnodeparent;
6552 mnode->plane = loadmodel->brush.data_planes + loadmodel->brush.num_planes++;
6553 VectorCopy(objnode->normal, mnode->plane->normal);
6554 mnode->plane->dist = objnode->dist;
6555 PlaneClassify(mnode->plane);
6556 VectorCopy(objnode->mins, mnode->mins);
6557 VectorCopy(objnode->maxs, mnode->maxs);
6558 // push combinedsupercontents up to the parent
6560 mnodeparent->combinedsupercontents |= mnode->combinedsupercontents;
6561 mnode->children[0] = Mod_OBJ_ConvertBSPNode(objnode->children[0], mnode);
6562 mnode->children[1] = Mod_OBJ_ConvertBSPNode(objnode->children[1], mnode);
6566 // convert to mleaf_t
6567 mleaf_t *mleaf = loadmodel->brush.data_leafs + loadmodel->brush.num_leafs++;
6568 mleaf->parent = mnodeparent;
6569 VectorCopy(objnode->mins, mleaf->mins);
6570 VectorCopy(objnode->maxs, mleaf->maxs);
6571 mleaf->clusterindex = loadmodel->brush.num_leafs - 1;
6572 if (objnode->numtriangles)
6574 objtriangle_t *triangles = objnode->triangles;
6575 int numtriangles = objnode->numtriangles;
6579 objvertex_t vertex[3];
6581 maxsurfaces = numtriangles;
6583 // calculate some more data on each triangle for surface gathering
6584 for (i = 0;i < numtriangles;i++)
6586 triangle = triangles + i;
6587 texture = loadmodel->data_textures + triangle->textureindex;
6588 Mod_OBJ_SnapVertex(triangle->vertex[0].v);
6589 Mod_OBJ_SnapVertex(triangle->vertex[1].v);
6590 Mod_OBJ_SnapVertex(triangle->vertex[2].v);
6591 TriangleNormal(triangle->vertex[0].v, triangle->vertex[1].v, triangle->vertex[2].v, normal);
6593 if (fabs(normal[axis]) < fabs(normal[1]))
6595 if (fabs(normal[axis]) < fabs(normal[2]))
6597 VectorClear(normal);
6599 triangle->axis = axis;
6600 VectorSubtract(triangle->vertex[1].v, triangle->vertex[0].v, edge[0]);
6601 VectorSubtract(triangle->vertex[2].v, triangle->vertex[1].v, edge[1]);
6602 VectorSubtract(triangle->vertex[0].v, triangle->vertex[2].v, edge[2]);
6603 CrossProduct(edge[0], normal, triangle->edgeplane[0]);
6604 CrossProduct(edge[1], normal, triangle->edgeplane[1]);
6605 CrossProduct(edge[2], normal, triangle->edgeplane[2]);
6606 VectorNormalize(triangle->edgeplane[0]);
6607 VectorNormalize(triangle->edgeplane[1]);
6608 VectorNormalize(triangle->edgeplane[2]);
6609 triangle->edgeplane[0][3] = DotProduct(triangle->edgeplane[0], triangle->vertex[0].v);
6610 triangle->edgeplane[1][3] = DotProduct(triangle->edgeplane[1], triangle->vertex[1].v);
6611 triangle->edgeplane[2][3] = DotProduct(triangle->edgeplane[2], triangle->vertex[2].v);
6612 triangle->surfaceindex = 0;
6613 // add to the combined supercontents while we're here...
6614 mleaf->combinedsupercontents |= texture->supercontents;
6617 for (i = 0;i < numtriangles;i++)
6619 // skip already-assigned triangles
6620 if (triangles[i].surfaceindex)
6622 texture = loadmodel->data_textures + triangles[i].textureindex;
6623 // assign a new surface to this triangle
6624 triangles[i].surfaceindex = surfaceindex++;
6625 axis = triangles[i].axis;
6627 // find the triangle's neighbors, this can take multiple passes
6632 for (j = i+1;j < numtriangles;j++)
6634 if (triangles[j].surfaceindex || triangles[j].axis != axis || triangles[j].texture != texture)
6636 triangle = triangles + j;
6637 for (k = i;k < j;k++)
6639 if (triangles[k].surfaceindex != surfaceindex)
6641 if (VectorCompare(triangles[k].vertex[0].v, triangles[j].vertex[0].v)
6642 || VectorCompare(triangles[k].vertex[0].v, triangles[j].vertex[1].v)
6643 || VectorCompare(triangles[k].vertex[0].v, triangles[j].vertex[2].v)
6644 || VectorCompare(triangles[k].vertex[1].v, triangles[j].vertex[0].v)
6645 || VectorCompare(triangles[k].vertex[1].v, triangles[j].vertex[1].v)
6646 || VectorCompare(triangles[k].vertex[1].v, triangles[j].vertex[2].v)
6647 || VectorCompare(triangles[k].vertex[2].v, triangles[j].vertex[0].v)
6648 || VectorCompare(triangles[k].vertex[2].v, triangles[j].vertex[1].v)
6649 || VectorCompare(triangles[k].vertex[2].v, triangles[j].vertex[2].v))
6651 // shares a vertex position
6655 for (k = 0;k < numvertices;k++)
6656 if (!VectorCompare(vertex[k].v, triangles[j].vertex[0].v) || !VectorCompare(vertex[k].v, triangles[j].vertex[1].v) || !VectorCompare(vertex[k].v, triangles[j].vertex[2].v))
6658 if (k == numvertices)
6659 break; // not a neighbor
6660 // this triangle is a neighbor and has the same axis and texture
6661 // check now if it overlaps in lightmap projection space
6662 triangles[j].surfaceindex;
6666 //triangles[i].surfaceindex = surfaceindex++;
6667 for (surfaceindex = 0;surfaceindex < numsurfaces;surfaceindex++)
6669 if (surfaces[surfaceindex].texture != texture)
6671 // check if any triangles already in this surface overlap in lightmap projection space
6678 // let the collision code simply use the surfaces
6679 mleaf->containscollisionsurfaces = mleaf->combinedsupercontents != 0;
6680 mleaf->numleafsurfaces = ?;
6681 mleaf->firstleafsurface = ?;
6683 // push combinedsupercontents up to the parent
6685 mnodeparent->combinedsupercontents |= mleaf->combinedsupercontents;
6690 void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
6693 const char *textbase = (char *)buffer, *text = textbase;
6697 char materialname[MAX_QPATH];
6698 int j, index1, index2, index3, first, prev, index;
6701 int numtriangles = 0;
6702 int maxtriangles = 131072;
6703 objtriangle_t *triangles = Mem_Alloc(tempmempool, maxtriangles * sizeof(*triangles));
6705 int maxtextures = 256, numtextures = 0, textureindex = 0;
6706 int maxv = 1024, numv = 0;
6707 int maxvt = 1024, numvt = 0;
6708 int maxvn = 1024, numvn = 0;
6709 char **texturenames;
6710 float *v = Mem_Alloc(tempmempool, maxv * sizeof(float[3]));
6711 float *vt = Mem_Alloc(tempmempool, maxvt * sizeof(float[2]));
6712 float *vn = Mem_Alloc(tempmempool, maxvn * sizeof(float[3]));
6713 objvertex_t vfirst, vprev, vcurrent;
6718 int maxverthash = 65536, numverthash = 0;
6719 int numhashindex = 65536;
6720 struct objverthash_s
6722 struct objverthash_s *next;
6728 *hash, **verthash = Mem_Alloc(tempmempool, numhashindex * sizeof(*verthash)), *verthashdata = Mem_Alloc(tempmempool, maxverthash * sizeof(*verthashdata)), *oldverthashdata;
6731 dpsnprintf(materialname, sizeof(materialname), "%s", loadmodel->name);
6733 loadmodel->modeldatatypestring = "OBJ";
6735 loadmodel->type = mod_obj;
6736 loadmodel->soundfromcenter = true;
6737 loadmodel->TraceBox = Mod_OBJ_TraceBox;
6738 loadmodel->TraceLine = Mod_OBJ_TraceLine;
6739 loadmodel->TracePoint = Mod_OBJ_TracePoint;
6740 loadmodel->PointSuperContents = Mod_OBJ_PointSuperContents;
6741 loadmodel->brush.TraceLineOfSight = Mod_OBJ_TraceLineOfSight;
6742 loadmodel->brush.SuperContentsFromNativeContents = Mod_OBJ_SuperContentsFromNativeContents;
6743 loadmodel->brush.NativeContentsFromSuperContents = Mod_OBJ_NativeContentsFromSuperContents;
6744 loadmodel->brush.GetPVS = Mod_OBJ_GetPVS;
6745 loadmodel->brush.FatPVS = Mod_OBJ_FatPVS;
6746 loadmodel->brush.BoxTouchingPVS = Mod_OBJ_BoxTouchingPVS;
6747 loadmodel->brush.BoxTouchingLeafPVS = Mod_OBJ_BoxTouchingLeafPVS;
6748 loadmodel->brush.BoxTouchingVisibleLeafs = Mod_OBJ_BoxTouchingVisibleLeafs;
6749 loadmodel->brush.FindBoxClusters = Mod_OBJ_FindBoxClusters;
6750 loadmodel->brush.LightPoint = Mod_OBJ_LightPoint;
6751 loadmodel->brush.FindNonSolidLocation = Mod_OBJ_FindNonSolidLocation;
6752 loadmodel->brush.AmbientSoundLevelsForPoint = NULL;
6753 loadmodel->brush.RoundUpToHullSize = NULL;
6754 loadmodel->brush.PointInLeaf = Mod_OBJ_PointInLeaf;
6755 loadmodel->Draw = R_Q1BSP_Draw;
6756 loadmodel->DrawDepth = R_Q1BSP_DrawDepth;
6757 loadmodel->DrawDebug = R_Q1BSP_DrawDebug;
6758 loadmodel->GetLightInfo = R_Q1BSP_GetLightInfo;
6759 loadmodel->CompileShadowMap = R_Q1BSP_CompileShadowMap;
6760 loadmodel->DrawShadowMap = R_Q1BSP_DrawShadowMap;
6761 loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
6762 loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
6763 loadmodel->DrawLight = R_Q1BSP_DrawLight;
6768 // parse the OBJ text now
6775 for (linelen = 0;text[linelen] && text[linelen] != '\r' && text[linelen] != '\n';linelen++)
6776 line[linelen] = text[linelen];
6778 for (argc = 0;argc < (int)(sizeof(argv)/sizeof(argv[0]));argc++)
6782 while (*s == ' ' || *s == '\t')
6792 while (*s == ' ' || *s == '\t')
6797 if (argv[0][0] == '#')
6799 if (!strcmp(argv[0], "v"))
6805 v = Mem_Alloc(tempmempool, maxv * sizeof(float[3]));
6808 memcpy(v, oldv, numv * sizeof(float[3]));
6812 v[numv*3+0] = atof(argv[1]);
6813 v[numv*3+1] = atof(argv[2]);
6814 v[numv*3+2] = atof(argv[3]);
6817 else if (!strcmp(argv[0], "vt"))
6823 vt = Mem_Alloc(tempmempool, maxvt * sizeof(float[2]));
6826 memcpy(vt, oldvt, numvt * sizeof(float[2]));
6830 vt[numvt*2+0] = atof(argv[1]);
6831 vt[numvt*2+1] = atof(argv[2]);
6834 else if (!strcmp(argv[0], "vn"))
6840 vn = Mem_Alloc(tempmempool, maxvn * sizeof(float[3]));
6843 memcpy(vn, oldvn, numvn * sizeof(float[3]));
6847 vn[numvn*3+0] = atof(argv[1]);
6848 vn[numvn*3+1] = atof(argv[2]);
6849 vn[numvn*3+2] = atof(argv[3]);
6852 else if (!strcmp(argv[0], "f"))
6854 for (j = 1;j < argc;j++)
6856 index1 = atoi(argv[j]);
6857 while(argv[j][0] && argv[j][0] != '/')
6861 index2 = atoi(argv[j]);
6862 while(argv[j][0] && argv[j][0] != '/')
6866 index3 = atoi(argv[j]);
6867 // negative refers to a recent vertex
6868 // zero means not specified
6869 // positive means an absolute vertex index
6871 index1 = numv - index1;
6873 index2 = numvt - index2;
6875 index3 = numvn - index3;
6876 VectorCopy(v + 3*index1, vcurrent.v);
6877 Vector2Copy(vt + 2*index2, vcurrent.vt);
6878 VectorCopy(vn + 3*index3, vcurrent.vn);
6879 if (numtriangles == 0)
6881 VectorCopy(vcurrent.v, mins);
6882 VectorCopy(vcurrent.v, maxs);
6886 mins[0] = min(mins[0], vcurrent.v[0]);
6887 mins[1] = min(mins[1], vcurrent.v[1]);
6888 mins[2] = min(mins[2], vcurrent.v[2]);
6889 maxs[0] = max(maxs[0], vcurrent.v[0]);
6890 maxs[1] = max(maxs[1], vcurrent.v[1]);
6891 maxs[2] = max(maxs[2], vcurrent.v[2]);
6897 if (maxtriangles <= numtriangles)
6899 objtriangle_t *oldtriangles = triangles;
6901 triangles = Mem_Alloc(tempmempool, numtriangles * sizeof(*triangles));
6904 memcpy(triangles, oldtriangles, numtriangles * sizeof(*triangles));
6905 Mem_Free(oldtriangles);
6908 triangles[numtriangles].textureindex = textureindex;
6909 triangles[numtriangles].vertex[0] = vfirst;
6910 triangles[numtriangles].vertex[1] = vprev;
6911 triangles[numtriangles].vertex[2] = vcurrent;
6918 else if (!strcmp(argv[0], "o") || !strcmp(argv[0], "g"))
6920 else if (!!strcmp(argv[0], "usemtl"))
6922 for (i = 0;i < numtextures;i++)
6923 if (!strcmp(texturenames[numtextures], argv[1]))
6925 if (i < numtextures)
6926 texture = textures + i;
6929 if (maxtextures <= numtextures)
6931 texture_t *oldtextures = textures;
6933 textures = Mem_Alloc(tempmempool, maxtextures * sizeof(*textures));
6936 memcpy(textures, oldtextures, numtexutres * sizeof(*textures));
6937 Mem_Free(oldtextures);
6940 textureindex = numtextures++;
6941 texturenames[textureindex] = Mem_Alloc(tempmempool, strlen(argv[1]) + 1);
6942 memcpy(texturenames[textureindex], argv[1], strlen(argv[1]) + 1);
6952 // now that we have the OBJ data loaded as-is, we can convert it
6954 // load the textures
6955 loadmodel->num_textures = numtextures;
6956 loadmodel->data_textures = Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
6957 for (i = 0;i < numtextures;i++)
6958 Mod_LoadTextureFromQ3Shader(loadmodel->data_textures + i, texturenames[i], true, true, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0) | TEXF_COMPRESS);
6960 // free the texturenames array since we are now done with it
6961 for (i = 0;i < numtextures;i++)
6963 Mem_Free(texturenames[i]);
6964 texturenames[i] = NULL;
6966 Mem_Free(texturenames);
6967 texturenames = NULL;
6969 // copy the model bounds, then enlarge the yaw and rotated bounds according to radius
6970 VectorCopy(mins, loadmodel->normalmins);
6971 VectorCopy(maxs, loadmodel->normalmaxs);
6972 dist = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
6973 modelyawradius = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
6974 modelyawradius = dist*dist+modelyawradius*modelyawradius;
6975 modelradius = max(fabs(loadmodel->normalmins[2]), fabs(loadmodel->normalmaxs[2]));
6976 modelradius = modelyawradius + modelradius * modelradius;
6977 modelyawradius = sqrt(modelyawradius);
6978 modelradius = sqrt(modelradius);
6979 loadmodel->yawmins[0] = loadmodel->yawmins[1] = -modelyawradius;
6980 loadmodel->yawmins[2] = loadmodel->normalmins[2];
6981 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius;
6982 loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
6983 loadmodel->rotatedmins[0] = loadmodel->rotatedmins[1] = loadmodel->rotatedmins[2] = -modelradius;
6984 loadmodel->rotatedmaxs[0] = loadmodel->rotatedmaxs[1] = loadmodel->rotatedmaxs[2] = modelradius;
6985 loadmodel->radius = modelradius;
6986 loadmodel->radius2 = modelradius * modelradius;
6988 // make sure the temp triangle buffer is big enough for BSP building
6989 maxclippedtriangles = numtriangles*4;
6990 if (numtriangles > 0)
6992 clippedfronttriangles = Mem_Alloc(loadmodel->mempool, maxclippedtriangles * 2 * sizeof(objtriangle_t));
6993 clippedbacktriangles = clippedfronttriangles + maxclippedtriangles;
6996 // generate a rough BSP tree from triangle data, we don't have to be too careful here, it only has to define the basic areas of the map
6997 loadmodel->brush.num_leafs = 0;
6998 loadmodel->brush.num_nodes = 0;
6999 Mem_ExpandableArray_NewArray(&nodesarray, loadmodel->mempool, sizeof(objnode_t), 1024);
7000 rootnode = Mod_OBJ_BSPNodeForTriangles(triangles, numtriangles, mins, maxs, &nodesarray, maxclippedtriangles, clippedfronttriangles, clippedbacktriangles);
7002 // convert the BSP tree to mnode_t and mleaf_t structures and convert the triangles to msurface_t...
7003 loadmodel->brush.data_leafs = Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafs * sizeof(mleaf_t));
7004 loadmodel->brush.data_nodes = Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(mnode_t));
7005 loadmodel->brush.data_planes = Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(mplane_t));
7006 loadmodel->brush.num_leafs = 0;
7007 loadmodel->brush.num_nodes = 0;
7008 loadmodel->brush.num_planes = 0;
7009 Mod_OBJ_ConvertAndFreeBSPNode(rootnode);
7011 if (clippedfronttriangles)
7012 Mem_Free(clippedfronttriangles);
7013 maxclippedtriangles = 0;
7014 clippedfronttriangles = NULL;
7015 clippedbacktriangles = NULL;
7017 --- NOTHING DONE PAST THIS POINT ---
7019 loadmodel->numskins = LittleLong(pinmodel->num_skins);
7020 numxyz = LittleLong(pinmodel->num_xyz);
7021 numst = LittleLong(pinmodel->num_st);
7022 loadmodel->surfmesh.num_triangles = LittleLong(pinmodel->num_tris);
7023 loadmodel->numframes = LittleLong(pinmodel->num_frames);
7024 loadmodel->surfmesh.num_morphframes = loadmodel->numframes;
7025 loadmodel->num_poses = loadmodel->surfmesh.num_morphframes;
7026 skinwidth = LittleLong(pinmodel->skinwidth);
7027 skinheight = LittleLong(pinmodel->skinheight);
7028 iskinwidth = 1.0f / skinwidth;
7029 iskinheight = 1.0f / skinheight;
7031 loadmodel->num_surfaces = 1;
7032 loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
7033 data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->numframes * sizeof(animscene_t) + loadmodel->numframes * sizeof(float[6]) + loadmodel->surfmesh.num_triangles * sizeof(int[3]) + loadmodel->surfmesh.num_triangles * sizeof(int[3]));
7034 loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
7035 loadmodel->sortedmodelsurfaces = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
7036 loadmodel->sortedmodelsurfaces[0] = 0;
7037 loadmodel->animscenes = (animscene_t *)data;data += loadmodel->numframes * sizeof(animscene_t);
7038 loadmodel->surfmesh.data_morphmd2framesize6f = (float *)data;data += loadmodel->numframes * sizeof(float[6]);
7039 loadmodel->surfmesh.data_element3i = (int *)data;data += loadmodel->surfmesh.num_triangles * sizeof(int[3]);
7040 loadmodel->surfmesh.data_neighbor3i = (int *)data;data += loadmodel->surfmesh.num_triangles * sizeof(int[3]);
7042 loadmodel->synctype = ST_RAND;
7045 inskin = (char *)(base + LittleLong(pinmodel->ofs_skins));
7046 skinfiles = Mod_LoadSkinFiles();
7049 loadmodel->num_textures = loadmodel->num_surfaces * loadmodel->numskins;
7050 loadmodel->num_texturesperskin = loadmodel->num_surfaces;
7051 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
7052 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures, skinfiles, "default", "");
7053 Mod_FreeSkinFiles(skinfiles);
7055 else if (loadmodel->numskins)
7057 // skins found (most likely not a player model)
7058 loadmodel->num_textures = loadmodel->num_surfaces * loadmodel->numskins;
7059 loadmodel->num_texturesperskin = loadmodel->num_surfaces;
7060 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
7061 for (i = 0;i < loadmodel->numskins;i++, inskin += MD2_SKINNAME)
7062 Mod_LoadTextureFromQ3Shader(loadmodel->data_textures + i * loadmodel->num_surfaces, inskin, true, true, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP | TEXF_COMPRESS);
7066 // no skins (most likely a player model)
7067 loadmodel->numskins = 1;
7068 loadmodel->num_textures = loadmodel->num_surfaces * loadmodel->numskins;
7069 loadmodel->num_texturesperskin = loadmodel->num_surfaces;
7070 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
7071 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures, NULL);
7074 loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
7075 for (i = 0;i < loadmodel->numskins;i++)
7077 loadmodel->skinscenes[i].firstframe = i;
7078 loadmodel->skinscenes[i].framecount = 1;
7079 loadmodel->skinscenes[i].loop = true;
7080 loadmodel->skinscenes[i].framerate = 10;
7083 // load the triangles and stvert data
7084 inst = (unsigned short *)(base + LittleLong(pinmodel->ofs_st));
7085 intri = (md2triangle_t *)(base + LittleLong(pinmodel->ofs_tris));
7086 md2verthash = (struct md2verthash_s **)Mem_Alloc(tempmempool, 65536 * sizeof(hash));
7087 md2verthashdata = (struct md2verthash_s *)Mem_Alloc(tempmempool, loadmodel->surfmesh.num_triangles * 3 * sizeof(*hash));
7088 // swap the triangle list
7089 loadmodel->surfmesh.num_vertices = 0;
7090 for (i = 0;i < loadmodel->surfmesh.num_triangles;i++)
7092 for (j = 0;j < 3;j++)
7094 xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
7095 st = (unsigned short) LittleShort (intri[i].index_st[j]);
7098 Con_Printf("%s has an invalid xyz index (%i) on triangle %i, resetting to 0\n", loadmodel->name, xyz, i);
7103 Con_Printf("%s has an invalid st index (%i) on triangle %i, resetting to 0\n", loadmodel->name, st, i);
7106 hashindex = (xyz * 256 + st) & 65535;
7107 for (hash = md2verthash[hashindex];hash;hash = hash->next)
7108 if (hash->xyz == xyz && hash->st == st)
7112 hash = md2verthashdata + loadmodel->surfmesh.num_vertices++;
7115 hash->next = md2verthash[hashindex];
7116 md2verthash[hashindex] = hash;
7118 loadmodel->surfmesh.data_element3i[i*3+j] = (hash - md2verthashdata);
7122 vertremap = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->surfmesh.num_vertices * sizeof(int));
7123 data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->surfmesh.num_vertices * sizeof(float[2]) + loadmodel->surfmesh.num_vertices * loadmodel->surfmesh.num_morphframes * sizeof(trivertx_t));
7124 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
7125 loadmodel->surfmesh.data_morphmdlvertex = (trivertx_t *)data;data += loadmodel->surfmesh.num_vertices * loadmodel->surfmesh.num_morphframes * sizeof(trivertx_t);
7126 for (i = 0;i < loadmodel->surfmesh.num_vertices;i++)
7129 hash = md2verthashdata + i;
7130 vertremap[i] = hash->xyz;
7131 sts = LittleShort(inst[hash->st*2+0]);
7132 stt = LittleShort(inst[hash->st*2+1]);
7133 if (sts < 0 || sts >= skinwidth || stt < 0 || stt >= skinheight)
7135 Con_Printf("%s has an invalid skin coordinate (%i %i) on vert %i, changing to 0 0\n", loadmodel->name, sts, stt, i);
7139 loadmodel->surfmesh.data_texcoordtexture2f[i*2+0] = sts * iskinwidth;
7140 loadmodel->surfmesh.data_texcoordtexture2f[i*2+1] = stt * iskinheight;
7143 Mem_Free(md2verthash);
7144 Mem_Free(md2verthashdata);
7146 // generate ushort elements array if possible
7147 if (loadmodel->surfmesh.num_vertices <= 65536)
7148 loadmodel->surfmesh.data_element3s = (unsigned short *)Mem_Alloc(loadmodel->mempool, sizeof(unsigned short[3]) * loadmodel->surfmesh.num_triangles);
7151 datapointer = (base + LittleLong(pinmodel->ofs_frames));
7152 for (i = 0;i < loadmodel->surfmesh.num_morphframes;i++)
7157 pinframe = (md2frame_t *)datapointer;
7158 datapointer += sizeof(md2frame_t);
7159 // store the frame scale/translate into the appropriate array
7160 for (j = 0;j < 3;j++)
7162 loadmodel->surfmesh.data_morphmd2framesize6f[i*6+j] = LittleFloat(pinframe->scale[j]);
7163 loadmodel->surfmesh.data_morphmd2framesize6f[i*6+3+j] = LittleFloat(pinframe->translate[j]);
7165 // convert the vertices
7166 v = (trivertx_t *)datapointer;
7167 out = loadmodel->surfmesh.data_morphmdlvertex + i * loadmodel->surfmesh.num_vertices;
7168 for (k = 0;k < loadmodel->surfmesh.num_vertices;k++)
7169 out[k] = v[vertremap[k]];
7170 datapointer += numxyz * sizeof(trivertx_t);
7172 strlcpy(loadmodel->animscenes[i].name, pinframe->name, sizeof(loadmodel->animscenes[i].name));
7173 loadmodel->animscenes[i].firstframe = i;
7174 loadmodel->animscenes[i].framecount = 1;
7175 loadmodel->animscenes[i].framerate = 10;
7176 loadmodel->animscenes[i].loop = true;
7179 Mem_Free(vertremap);
7181 Mod_MakeSortedSurfaces(loadmodel);
7182 Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
7183 Mod_Alias_CalculateBoundingBox();
7184 Mod_Alias_MorphMesh_CompileFrames();
7186 surface = loadmodel->data_surfaces;
7187 surface->texture = loadmodel->data_textures;
7188 surface->num_firsttriangle = 0;
7189 surface->num_triangles = loadmodel->surfmesh.num_triangles;
7190 surface->num_firstvertex = 0;
7191 surface->num_vertices = loadmodel->surfmesh.num_vertices;
7193 loadmodel->surfmesh.isanimated = false;
7195 if (loadmodel->surfmesh.data_element3s)
7196 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
7197 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
7201 qboolean Mod_CanSeeBox_Trace(int numsamples, float t, dp_model_t *model, vec3_t eye, vec3_t minsX, vec3_t maxsX)
7203 // we already have done PVS culling at this point...
7204 // so we don't need to do it again.
7207 vec3_t testorigin, mins, maxs;
7209 testorigin[0] = (minsX[0] + maxsX[0]) * 0.5;
7210 testorigin[1] = (minsX[1] + maxsX[1]) * 0.5;
7211 testorigin[2] = (minsX[2] + maxsX[2]) * 0.5;
7213 if(model->brush.TraceLineOfSight(model, eye, testorigin))
7216 // expand the box a little
7217 mins[0] = (t+1) * minsX[0] - t * maxsX[0];
7218 maxs[0] = (t+1) * maxsX[0] - t * minsX[0];
7219 mins[1] = (t+1) * minsX[1] - t * maxsX[1];
7220 maxs[1] = (t+1) * maxsX[1] - t * minsX[1];
7221 mins[2] = (t+1) * minsX[2] - t * maxsX[2];
7222 maxs[2] = (t+1) * maxsX[2] - t * minsX[2];
7224 for(i = 0; i != numsamples; ++i)
7226 testorigin[0] = lhrandom(mins[0], maxs[0]);
7227 testorigin[1] = lhrandom(mins[1], maxs[1]);
7228 testorigin[2] = lhrandom(mins[2], maxs[2]);
7230 if(model->brush.TraceLineOfSight(model, eye, testorigin))