2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
29 //cvar_t r_subdivide_size = {CVAR_SAVE, "r_subdivide_size", "128", "how large water polygons should be (smaller values produce more polygons which give better warping effects)"};
30 cvar_t halflifebsp = {0, "halflifebsp", "0", "indicates the current map is hlbsp format (useful to know because of different bounding box sizes)"};
31 cvar_t mcbsp = {0, "mcbsp", "0", "indicates the current map is mcbsp format (useful to know because of different bounding box sizes)"};
32 cvar_t r_novis = {0, "r_novis", "0", "draws whole level, see also sv_cullentities_pvs 0"};
33 cvar_t r_lightmaprgba = {0, "r_lightmaprgba", "1", "whether to use RGBA (32bit) or RGB (24bit) lightmaps"};
34 cvar_t r_nosurftextures = {0, "r_nosurftextures", "0", "pretends there was no texture lump found in the q1bsp/hlbsp loading (useful for debugging this rare case)"};
35 cvar_t r_subdivisions_tolerance = {0, "r_subdivisions_tolerance", "4", "maximum error tolerance on curve subdivision for rendering purposes (in other words, the curves will be given as many polygons as necessary to represent curves at this quality)"};
36 cvar_t r_subdivisions_mintess = {0, "r_subdivisions_mintess", "1", "minimum number of subdivisions (values above 1 will smooth curves that don't need it)"};
37 cvar_t r_subdivisions_maxtess = {0, "r_subdivisions_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
38 cvar_t r_subdivisions_maxvertices = {0, "r_subdivisions_maxvertices", "65536", "maximum vertices allowed per subdivided curve"};
39 cvar_t r_subdivisions_collision_tolerance = {0, "r_subdivisions_collision_tolerance", "15", "maximum error tolerance on curve subdivision for collision purposes (usually a larger error tolerance than for rendering)"};
40 cvar_t r_subdivisions_collision_mintess = {0, "r_subdivisions_collision_mintess", "1", "minimum number of subdivisions (values above 1 will smooth curves that don't need it)"};
41 cvar_t r_subdivisions_collision_maxtess = {0, "r_subdivisions_collision_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
42 cvar_t r_subdivisions_collision_maxvertices = {0, "r_subdivisions_collision_maxvertices", "4225", "maximum vertices allowed per subdivided curve"};
43 cvar_t mod_q3bsp_curves_collisions = {0, "mod_q3bsp_curves_collisions", "1", "enables collisions with curves (SLOW)"};
44 cvar_t mod_q3bsp_optimizedtraceline = {0, "mod_q3bsp_optimizedtraceline", "1", "whether to use optimized traceline code for line traces (as opposed to tracebox code)"};
45 cvar_t mod_q3bsp_debugtracebrush = {0, "mod_q3bsp_debugtracebrush", "0", "selects different tracebrush bsp recursion algorithms (for debugging purposes only)"};
47 static texture_t mod_q1bsp_texture_solid;
48 static texture_t mod_q1bsp_texture_sky;
49 static texture_t mod_q1bsp_texture_lava;
50 static texture_t mod_q1bsp_texture_slime;
51 static texture_t mod_q1bsp_texture_water;
53 void Mod_BrushInit(void)
55 // Cvar_RegisterVariable(&r_subdivide_size);
56 Cvar_RegisterVariable(&halflifebsp);
57 Cvar_RegisterVariable(&mcbsp);
58 Cvar_RegisterVariable(&r_novis);
59 Cvar_RegisterVariable(&r_lightmaprgba);
60 Cvar_RegisterVariable(&r_nosurftextures);
61 Cvar_RegisterVariable(&r_subdivisions_tolerance);
62 Cvar_RegisterVariable(&r_subdivisions_mintess);
63 Cvar_RegisterVariable(&r_subdivisions_maxtess);
64 Cvar_RegisterVariable(&r_subdivisions_maxvertices);
65 Cvar_RegisterVariable(&r_subdivisions_collision_tolerance);
66 Cvar_RegisterVariable(&r_subdivisions_collision_mintess);
67 Cvar_RegisterVariable(&r_subdivisions_collision_maxtess);
68 Cvar_RegisterVariable(&r_subdivisions_collision_maxvertices);
69 Cvar_RegisterVariable(&mod_q3bsp_curves_collisions);
70 Cvar_RegisterVariable(&mod_q3bsp_optimizedtraceline);
71 Cvar_RegisterVariable(&mod_q3bsp_debugtracebrush);
73 memset(&mod_q1bsp_texture_solid, 0, sizeof(mod_q1bsp_texture_solid));
74 strlcpy(mod_q1bsp_texture_solid.name, "solid" , sizeof(mod_q1bsp_texture_solid.name));
75 mod_q1bsp_texture_solid.surfaceflags = 0;
76 mod_q1bsp_texture_solid.supercontents = SUPERCONTENTS_SOLID;
78 mod_q1bsp_texture_sky = mod_q1bsp_texture_solid;
79 strlcpy(mod_q1bsp_texture_sky.name, "sky", sizeof(mod_q1bsp_texture_sky.name));
80 mod_q1bsp_texture_sky.surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
81 mod_q1bsp_texture_sky.supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
83 mod_q1bsp_texture_lava = mod_q1bsp_texture_solid;
84 strlcpy(mod_q1bsp_texture_lava.name, "*lava", sizeof(mod_q1bsp_texture_lava.name));
85 mod_q1bsp_texture_lava.surfaceflags = Q3SURFACEFLAG_NOMARKS;
86 mod_q1bsp_texture_lava.supercontents = SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
88 mod_q1bsp_texture_slime = mod_q1bsp_texture_solid;
89 strlcpy(mod_q1bsp_texture_slime.name, "*slime", sizeof(mod_q1bsp_texture_slime.name));
90 mod_q1bsp_texture_slime.surfaceflags = Q3SURFACEFLAG_NOMARKS;
91 mod_q1bsp_texture_slime.supercontents = SUPERCONTENTS_SLIME;
93 mod_q1bsp_texture_water = mod_q1bsp_texture_solid;
94 strlcpy(mod_q1bsp_texture_water.name, "*water", sizeof(mod_q1bsp_texture_water.name));
95 mod_q1bsp_texture_water.surfaceflags = Q3SURFACEFLAG_NOMARKS;
96 mod_q1bsp_texture_water.supercontents = SUPERCONTENTS_WATER;
99 static mleaf_t *Mod_Q1BSP_PointInLeaf(model_t *model, const vec3_t p)
106 // LordHavoc: modified to start at first clip node,
107 // in other words: first node of the (sub)model
108 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
110 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
112 return (mleaf_t *)node;
115 static void Mod_Q1BSP_AmbientSoundLevelsForPoint(model_t *model, const vec3_t p, unsigned char *out, int outsize)
119 leaf = Mod_Q1BSP_PointInLeaf(model, p);
122 i = min(outsize, (int)sizeof(leaf->ambient_sound_level));
125 memcpy(out, leaf->ambient_sound_level, i);
131 memset(out, 0, outsize);
134 static int Mod_Q1BSP_FindBoxClusters(model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
137 int nodestackindex = 0;
138 mnode_t *node, *nodestack[1024];
139 if (!model->brush.num_pvsclusters)
141 node = model->brush.data_nodes;
147 // node - recurse down the BSP tree
148 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
152 return -1; // ERROR: NAN bounding box!
153 // box is on one side of plane, take that path
154 node = node->children[sides-1];
158 // box crosses plane, take one path and remember the other
159 if (nodestackindex < 1024)
160 nodestack[nodestackindex++] = node->children[0];
161 node = node->children[1];
167 // leaf - add clusterindex to list
168 if (numclusters < maxclusters)
169 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
173 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
177 if (nodestackindex < 1024)
178 nodestack[nodestackindex++] = node->children[0];
179 node = node->children[1];
184 // leaf - add clusterindex to list
185 if (numclusters < maxclusters)
186 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
191 // try another path we didn't take earlier
192 if (nodestackindex == 0)
194 node = nodestack[--nodestackindex];
196 // return number of clusters found (even if more than the maxclusters)
200 static int Mod_Q1BSP_BoxTouchingPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
202 int nodestackindex = 0;
203 mnode_t *node, *nodestack[1024];
204 if (!model->brush.num_pvsclusters)
206 node = model->brush.data_nodes;
212 // node - recurse down the BSP tree
213 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
217 return -1; // ERROR: NAN bounding box!
218 // box is on one side of plane, take that path
219 node = node->children[sides-1];
223 // box crosses plane, take one path and remember the other
224 if (nodestackindex < 1024)
225 nodestack[nodestackindex++] = node->children[0];
226 node = node->children[1];
232 // leaf - check cluster bit
233 int clusterindex = ((mleaf_t *)node)->clusterindex;
234 if (CHECKPVSBIT(pvs, clusterindex))
236 // it is visible, return immediately with the news
241 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
245 if (nodestackindex < 1024)
246 nodestack[nodestackindex++] = node->children[0];
247 node = node->children[1];
252 // leaf - check cluster bit
253 int clusterindex = ((mleaf_t *)node)->clusterindex;
254 if (CHECKPVSBIT(pvs, clusterindex))
256 // it is visible, return immediately with the news
262 // nothing to see here, try another path we didn't take earlier
263 if (nodestackindex == 0)
265 node = nodestack[--nodestackindex];
271 static int Mod_Q1BSP_BoxTouchingLeafPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
273 int nodestackindex = 0;
274 mnode_t *node, *nodestack[1024];
275 if (!model->brush.num_leafs)
277 node = model->brush.data_nodes;
283 // node - recurse down the BSP tree
284 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
288 return -1; // ERROR: NAN bounding box!
289 // box is on one side of plane, take that path
290 node = node->children[sides-1];
294 // box crosses plane, take one path and remember the other
295 if (nodestackindex < 1024)
296 nodestack[nodestackindex++] = node->children[0];
297 node = node->children[1];
303 // leaf - check cluster bit
304 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
305 if (CHECKPVSBIT(pvs, clusterindex))
307 // it is visible, return immediately with the news
312 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
316 if (nodestackindex < 1024)
317 nodestack[nodestackindex++] = node->children[0];
318 node = node->children[1];
323 // leaf - check cluster bit
324 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
325 if (CHECKPVSBIT(pvs, clusterindex))
327 // it is visible, return immediately with the news
333 // nothing to see here, try another path we didn't take earlier
334 if (nodestackindex == 0)
336 node = nodestack[--nodestackindex];
342 static int Mod_Q1BSP_BoxTouchingVisibleLeafs(model_t *model, const unsigned char *visibleleafs, const vec3_t mins, const vec3_t maxs)
344 int nodestackindex = 0;
345 mnode_t *node, *nodestack[1024];
346 if (!model->brush.num_leafs)
348 node = model->brush.data_nodes;
354 // node - recurse down the BSP tree
355 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
359 return -1; // ERROR: NAN bounding box!
360 // box is on one side of plane, take that path
361 node = node->children[sides-1];
365 // box crosses plane, take one path and remember the other
366 if (nodestackindex < 1024)
367 nodestack[nodestackindex++] = node->children[0];
368 node = node->children[1];
374 // leaf - check if it is visible
375 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
377 // it is visible, return immediately with the news
382 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
386 if (nodestackindex < 1024)
387 nodestack[nodestackindex++] = node->children[0];
388 node = node->children[1];
393 // leaf - check if it is visible
394 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
396 // it is visible, return immediately with the news
402 // nothing to see here, try another path we didn't take earlier
403 if (nodestackindex == 0)
405 node = nodestack[--nodestackindex];
411 typedef struct findnonsolidlocationinfo_s
419 findnonsolidlocationinfo_t;
421 static void Mod_Q1BSP_FindNonSolidLocation_r_Leaf(findnonsolidlocationinfo_t *info, mleaf_t *leaf)
423 int i, surfacenum, k, *tri, *mark;
424 float dist, f, vert[3][3], edge[3][3], facenormal[3], edgenormal[3][3], point[3];
426 for (surfacenum = 0, mark = leaf->firstleafsurface;surfacenum < leaf->numleafsurfaces;surfacenum++, mark++)
428 surface = info->model->data_surfaces + *mark;
429 if (surface->texture->supercontents & SUPERCONTENTS_SOLID)
431 for (k = 0;k < surface->num_triangles;k++)
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);
519 static void Mod_Q1BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, mnode_t *node)
523 float f = PlaneDiff(info->center, node->plane);
524 if (f >= -info->bestdist)
525 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[0]);
526 if (f <= info->bestdist)
527 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[1]);
531 if (((mleaf_t *)node)->numleafsurfaces)
532 Mod_Q1BSP_FindNonSolidLocation_r_Leaf(info, (mleaf_t *)node);
536 static void Mod_Q1BSP_FindNonSolidLocation(model_t *model, const vec3_t in, vec3_t out, float radius)
539 findnonsolidlocationinfo_t info;
545 VectorCopy(in, info.center);
546 info.radius = radius;
551 VectorClear(info.nudge);
552 info.bestdist = radius;
553 Mod_Q1BSP_FindNonSolidLocation_r(&info, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
554 VectorAdd(info.center, info.nudge, info.center);
556 while (info.bestdist < radius && ++i < 10);
557 VectorCopy(info.center, out);
560 int Mod_Q1BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
562 switch(nativecontents)
567 return SUPERCONTENTS_SOLID;
569 return SUPERCONTENTS_WATER;
571 return SUPERCONTENTS_SLIME;
573 return SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
575 return SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
580 int Mod_Q1BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
582 if (supercontents & (SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY))
583 return CONTENTS_SOLID;
584 if (supercontents & SUPERCONTENTS_SKY)
586 if (supercontents & SUPERCONTENTS_LAVA)
587 return CONTENTS_LAVA;
588 if (supercontents & SUPERCONTENTS_SLIME)
589 return CONTENTS_SLIME;
590 if (supercontents & SUPERCONTENTS_WATER)
591 return CONTENTS_WATER;
592 return CONTENTS_EMPTY;
595 typedef struct RecursiveHullCheckTraceInfo_s
597 // the hull we're tracing through
600 // the trace structure to fill in
603 // start, end, and end - start (in model space)
608 RecursiveHullCheckTraceInfo_t;
610 // 1/32 epsilon to keep floating point happy
611 #define DIST_EPSILON (0.03125)
613 #define HULLCHECKSTATE_EMPTY 0
614 #define HULLCHECKSTATE_SOLID 1
615 #define HULLCHECKSTATE_DONE 2
617 static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int num, double p1f, double p2f, double p1[3], double p2[3])
619 // status variables, these don't need to be saved on the stack when
620 // recursing... but are because this should be thread-safe
621 // (note: tracing against a bbox is not thread-safe, yet)
626 // variables that need to be stored on the stack when recursing
631 // LordHavoc: a goto! everyone flee in terror... :)
636 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
637 if (!t->trace->startfound)
639 t->trace->startfound = true;
640 t->trace->startsupercontents |= num;
642 if (num & SUPERCONTENTS_LIQUIDSMASK)
643 t->trace->inwater = true;
645 t->trace->inopen = true;
646 if (num & SUPERCONTENTS_SOLID)
647 t->trace->hittexture = &mod_q1bsp_texture_solid;
648 else if (num & SUPERCONTENTS_SKY)
649 t->trace->hittexture = &mod_q1bsp_texture_sky;
650 else if (num & SUPERCONTENTS_LAVA)
651 t->trace->hittexture = &mod_q1bsp_texture_lava;
652 else if (num & SUPERCONTENTS_SLIME)
653 t->trace->hittexture = &mod_q1bsp_texture_slime;
655 t->trace->hittexture = &mod_q1bsp_texture_water;
656 t->trace->hitq3surfaceflags = t->trace->hittexture->surfaceflags;
657 t->trace->hitsupercontents = num;
658 if (num & t->trace->hitsupercontentsmask)
660 // if the first leaf is solid, set startsolid
661 if (t->trace->allsolid)
662 t->trace->startsolid = true;
663 #if COLLISIONPARANOID >= 3
666 return HULLCHECKSTATE_SOLID;
670 t->trace->allsolid = false;
671 #if COLLISIONPARANOID >= 3
674 return HULLCHECKSTATE_EMPTY;
678 // find the point distances
679 node = t->hull->clipnodes + num;
681 plane = t->hull->planes + node->planenum;
684 t1 = p1[plane->type] - plane->dist;
685 t2 = p2[plane->type] - plane->dist;
689 t1 = DotProduct (plane->normal, p1) - plane->dist;
690 t2 = DotProduct (plane->normal, p2) - plane->dist;
697 #if COLLISIONPARANOID >= 3
700 num = node->children[1];
709 #if COLLISIONPARANOID >= 3
712 num = node->children[0];
718 // the line intersects, find intersection point
719 // LordHavoc: this uses the original trace for maximum accuracy
720 #if COLLISIONPARANOID >= 3
725 t1 = t->start[plane->type] - plane->dist;
726 t2 = t->end[plane->type] - plane->dist;
730 t1 = DotProduct (plane->normal, t->start) - plane->dist;
731 t2 = DotProduct (plane->normal, t->end) - plane->dist;
734 midf = t1 / (t1 - t2);
735 midf = bound(p1f, midf, p2f);
736 VectorMA(t->start, midf, t->dist, mid);
738 // recurse both sides, front side first
739 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side], p1f, midf, p1, mid);
740 // if this side is not empty, return what it is (solid or done)
741 if (ret != HULLCHECKSTATE_EMPTY)
744 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side ^ 1], midf, p2f, mid, p2);
745 // if other side is not solid, return what it is (empty or done)
746 if (ret != HULLCHECKSTATE_SOLID)
749 // front is air and back is solid, this is the impact point...
752 t->trace->plane.dist = -plane->dist;
753 VectorNegate (plane->normal, t->trace->plane.normal);
757 t->trace->plane.dist = plane->dist;
758 VectorCopy (plane->normal, t->trace->plane.normal);
761 // calculate the true fraction
762 t1 = DotProduct(t->trace->plane.normal, t->start) - t->trace->plane.dist;
763 t2 = DotProduct(t->trace->plane.normal, t->end) - t->trace->plane.dist;
764 midf = t1 / (t1 - t2);
765 t->trace->realfraction = bound(0, midf, 1);
767 // calculate the return fraction which is nudged off the surface a bit
768 midf = (t1 - DIST_EPSILON) / (t1 - t2);
769 t->trace->fraction = bound(0, midf, 1);
771 #if COLLISIONPARANOID >= 3
774 return HULLCHECKSTATE_DONE;
777 //#if COLLISIONPARANOID < 2
778 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
781 num = t->hull->clipnodes[num].children[(t->hull->planes[t->hull->clipnodes[num].planenum].type < 3 ? t->start[t->hull->planes[t->hull->clipnodes[num].planenum].type] : DotProduct(t->hull->planes[t->hull->clipnodes[num].planenum].normal, t->start)) < t->hull->planes[t->hull->clipnodes[num].planenum].dist];
782 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
783 t->trace->startsupercontents |= num;
784 if (num & SUPERCONTENTS_LIQUIDSMASK)
785 t->trace->inwater = true;
787 t->trace->inopen = true;
788 if (num & t->trace->hitsupercontentsmask)
790 t->trace->allsolid = t->trace->startsolid = true;
791 return HULLCHECKSTATE_SOLID;
795 t->trace->allsolid = t->trace->startsolid = false;
796 return HULLCHECKSTATE_EMPTY;
801 static void Mod_Q1BSP_TraceBox(struct model_s *model, int frame, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
803 // this function currently only supports same size start and end
805 RecursiveHullCheckTraceInfo_t rhc;
807 memset(&rhc, 0, sizeof(rhc));
808 memset(trace, 0, sizeof(trace_t));
810 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
811 rhc.trace->fraction = 1;
812 rhc.trace->realfraction = 1;
813 rhc.trace->allsolid = true;
814 VectorSubtract(boxmaxs, boxmins, boxsize);
816 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
817 else if (model->brush.ismcbsp)
819 if (boxsize[2] < 48) // pick the nearest of 40 or 56
820 rhc.hull = &model->brushq1.hulls[2]; // 16x16x40
822 rhc.hull = &model->brushq1.hulls[1]; // 16x16x56
824 else if (model->brush.ishlbsp)
826 // LordHavoc: this has to have a minor tolerance (the .1) because of
827 // minor float precision errors from the box being transformed around
828 if (boxsize[0] < 32.1)
830 if (boxsize[2] < 54) // pick the nearest of 36 or 72
831 rhc.hull = &model->brushq1.hulls[3]; // 32x32x36
833 rhc.hull = &model->brushq1.hulls[1]; // 32x32x72
836 rhc.hull = &model->brushq1.hulls[2]; // 64x64x64
840 // LordHavoc: this has to have a minor tolerance (the .1) because of
841 // minor float precision errors from the box being transformed around
842 if (boxsize[0] < 32.1)
843 rhc.hull = &model->brushq1.hulls[1]; // 32x32x56
845 rhc.hull = &model->brushq1.hulls[2]; // 64x64x88
847 VectorMAMAM(1, start, 1, boxmins, -1, rhc.hull->clip_mins, rhc.start);
848 VectorMAMAM(1, end, 1, boxmins, -1, rhc.hull->clip_mins, rhc.end);
849 VectorSubtract(rhc.end, rhc.start, rhc.dist);
850 #if COLLISIONPARANOID >= 2
851 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]);
852 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
857 VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
858 memset(&testtrace, 0, sizeof(trace_t));
859 rhc.trace = &testtrace;
860 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
861 rhc.trace->fraction = 1;
862 rhc.trace->realfraction = 1;
863 rhc.trace->allsolid = true;
864 VectorCopy(test, rhc.start);
865 VectorCopy(test, rhc.end);
866 VectorClear(rhc.dist);
867 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
868 //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
869 if (!trace->startsolid && testtrace.startsolid)
870 Con_Printf(" - ended in solid!\n");
874 if (VectorLength2(rhc.dist))
875 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
877 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
881 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)
885 colplanef_t cbox_planes[6];
886 cbox.supercontents = boxsupercontents;
889 cbox.numtriangles = 0;
890 cbox.planes = cbox_planes;
892 cbox.elements = NULL;
900 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];
901 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];
902 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];
903 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];
904 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];
905 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];
906 cbox_planes[0].q3surfaceflags = boxq3surfaceflags;cbox_planes[0].texture = boxtexture;
907 cbox_planes[1].q3surfaceflags = boxq3surfaceflags;cbox_planes[1].texture = boxtexture;
908 cbox_planes[2].q3surfaceflags = boxq3surfaceflags;cbox_planes[2].texture = boxtexture;
909 cbox_planes[3].q3surfaceflags = boxq3surfaceflags;cbox_planes[3].texture = boxtexture;
910 cbox_planes[4].q3surfaceflags = boxq3surfaceflags;cbox_planes[4].texture = boxtexture;
911 cbox_planes[5].q3surfaceflags = boxq3surfaceflags;cbox_planes[5].texture = boxtexture;
912 memset(trace, 0, sizeof(trace_t));
913 trace->hitsupercontentsmask = hitsupercontentsmask;
915 trace->realfraction = 1;
916 Collision_TraceLineBrushFloat(trace, start, end, &cbox, &cbox);
918 RecursiveHullCheckTraceInfo_t rhc;
919 static hull_t box_hull;
920 static dclipnode_t box_clipnodes[6];
921 static mplane_t box_planes[6];
922 // fill in a default trace
923 memset(&rhc, 0, sizeof(rhc));
924 memset(trace, 0, sizeof(trace_t));
925 //To keep everything totally uniform, bounding boxes are turned into small
926 //BSP trees instead of being compared directly.
927 // create a temp hull from bounding box sizes
928 box_planes[0].dist = cmaxs[0] - mins[0];
929 box_planes[1].dist = cmins[0] - maxs[0];
930 box_planes[2].dist = cmaxs[1] - mins[1];
931 box_planes[3].dist = cmins[1] - maxs[1];
932 box_planes[4].dist = cmaxs[2] - mins[2];
933 box_planes[5].dist = cmins[2] - maxs[2];
934 #if COLLISIONPARANOID >= 3
935 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]);
938 if (box_hull.clipnodes == NULL)
942 //Set up the planes and clipnodes so that the six floats of a bounding box
943 //can just be stored out and get a proper hull_t structure.
945 box_hull.clipnodes = box_clipnodes;
946 box_hull.planes = box_planes;
947 box_hull.firstclipnode = 0;
948 box_hull.lastclipnode = 5;
950 for (i = 0;i < 6;i++)
952 box_clipnodes[i].planenum = i;
956 box_clipnodes[i].children[side] = CONTENTS_EMPTY;
958 box_clipnodes[i].children[side^1] = i + 1;
960 box_clipnodes[i].children[side^1] = CONTENTS_SOLID;
962 box_planes[i].type = i>>1;
963 box_planes[i].normal[i>>1] = 1;
967 // trace a line through the generated clipping hull
968 //rhc.boxsupercontents = boxsupercontents;
969 rhc.hull = &box_hull;
971 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
972 rhc.trace->fraction = 1;
973 rhc.trace->realfraction = 1;
974 rhc.trace->allsolid = true;
975 VectorCopy(start, rhc.start);
976 VectorCopy(end, rhc.end);
977 VectorSubtract(rhc.end, rhc.start, rhc.dist);
978 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
979 //VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
980 if (rhc.trace->startsupercontents)
981 rhc.trace->startsupercontents = boxsupercontents;
985 static int Mod_Q1BSP_LightPoint_RecursiveBSPNode(model_t *model, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const mnode_t *node, float x, float y, float startz, float endz)
989 float mid, distz = endz - startz;
993 return false; // didn't hit anything
995 switch (node->plane->type)
998 node = node->children[x < node->plane->dist];
1001 node = node->children[y < node->plane->dist];
1004 side = startz < node->plane->dist;
1005 if ((endz < node->plane->dist) == side)
1007 node = node->children[side];
1010 // found an intersection
1011 mid = node->plane->dist;
1014 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
1015 front += startz * node->plane->normal[2];
1016 back += endz * node->plane->normal[2];
1017 side = front < node->plane->dist;
1018 if ((back < node->plane->dist) == side)
1020 node = node->children[side];
1023 // found an intersection
1024 mid = startz + distz * (front - node->plane->dist) / (front - back);
1028 // go down front side
1029 if (node->children[side]->plane && Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
1030 return true; // hit something
1033 // check for impact on this node
1034 if (node->numsurfaces)
1037 msurface_t *surface;
1039 surface = model->data_surfaces + node->firstsurface;
1040 for (i = 0;i < node->numsurfaces;i++, surface++)
1042 if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->lightmapinfo->samples)
1043 continue; // no lightmaps
1045 ds = (int) (x * surface->lightmapinfo->texinfo->vecs[0][0] + y * surface->lightmapinfo->texinfo->vecs[0][1] + mid * surface->lightmapinfo->texinfo->vecs[0][2] + surface->lightmapinfo->texinfo->vecs[0][3]) - surface->lightmapinfo->texturemins[0];
1046 dt = (int) (x * surface->lightmapinfo->texinfo->vecs[1][0] + y * surface->lightmapinfo->texinfo->vecs[1][1] + mid * surface->lightmapinfo->texinfo->vecs[1][2] + surface->lightmapinfo->texinfo->vecs[1][3]) - surface->lightmapinfo->texturemins[1];
1048 if (ds >= 0 && ds < surface->lightmapinfo->extents[0] && dt >= 0 && dt < surface->lightmapinfo->extents[1])
1050 unsigned char *lightmap;
1051 int lmwidth, lmheight, maps, line3, size3, dsfrac = ds & 15, dtfrac = dt & 15, scale = 0, r00 = 0, g00 = 0, b00 = 0, r01 = 0, g01 = 0, b01 = 0, r10 = 0, g10 = 0, b10 = 0, r11 = 0, g11 = 0, b11 = 0;
1052 lmwidth = ((surface->lightmapinfo->extents[0]>>4)+1);
1053 lmheight = ((surface->lightmapinfo->extents[1]>>4)+1);
1054 line3 = lmwidth * 3; // LordHavoc: *3 for colored lighting
1055 size3 = lmwidth * lmheight * 3; // LordHavoc: *3 for colored lighting
1057 lightmap = surface->lightmapinfo->samples + ((dt>>4) * lmwidth + (ds>>4))*3; // LordHavoc: *3 for colored lighting
1059 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++)
1061 scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]];
1062 r00 += lightmap[ 0] * scale;g00 += lightmap[ 1] * scale;b00 += lightmap[ 2] * scale;
1063 r01 += lightmap[ 3] * scale;g01 += lightmap[ 4] * scale;b01 += lightmap[ 5] * scale;
1064 r10 += lightmap[line3+0] * scale;g10 += lightmap[line3+1] * scale;b10 += lightmap[line3+2] * scale;
1065 r11 += lightmap[line3+3] * scale;g11 += lightmap[line3+4] * scale;b11 += lightmap[line3+5] * scale;
1070 LordHavoc: here's the readable version of the interpolation
1071 code, not quite as easy for the compiler to optimize...
1073 dsfrac is the X position in the lightmap pixel, * 16
1074 dtfrac is the Y position in the lightmap pixel, * 16
1075 r00 is top left corner, r01 is top right corner
1076 r10 is bottom left corner, r11 is bottom right corner
1077 g and b are the same layout.
1078 r0 and r1 are the top and bottom intermediate results
1080 first we interpolate the top two points, to get the top
1083 r0 = (((r01-r00) * dsfrac) >> 4) + r00;
1084 g0 = (((g01-g00) * dsfrac) >> 4) + g00;
1085 b0 = (((b01-b00) * dsfrac) >> 4) + b00;
1087 then we interpolate the bottom two points, to get the
1090 r1 = (((r11-r10) * dsfrac) >> 4) + r10;
1091 g1 = (((g11-g10) * dsfrac) >> 4) + g10;
1092 b1 = (((b11-b10) * dsfrac) >> 4) + b10;
1094 then we interpolate the top and bottom samples to get the
1095 middle sample (the one which was requested)
1097 r = (((r1-r0) * dtfrac) >> 4) + r0;
1098 g = (((g1-g0) * dtfrac) >> 4) + g0;
1099 b = (((b1-b0) * dtfrac) >> 4) + b0;
1102 ambientcolor[0] += (float) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)) * (1.0f / 32768.0f);
1103 ambientcolor[1] += (float) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)) * (1.0f / 32768.0f);
1104 ambientcolor[2] += (float) ((((((((b11-b10) * dsfrac) >> 4) + b10)-((((b01-b00) * dsfrac) >> 4) + b00)) * dtfrac) >> 4) + ((((b01-b00) * dsfrac) >> 4) + b00)) * (1.0f / 32768.0f);
1105 return true; // success
1110 // go down back side
1111 node = node->children[side ^ 1];
1113 distz = endz - startz;
1118 void Mod_Q1BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
1120 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);
1121 // pretend lighting is coming down from above (due to lack of a lightgrid to know primary lighting direction)
1122 VectorSet(diffusenormal, 0, 0, 1);
1125 static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char *inend, unsigned char *out, unsigned char *outend)
1128 unsigned char *outstart = out;
1129 while (out < outend)
1133 Con_Printf("Mod_Q1BSP_DecompressVis: input underrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
1143 Con_Printf("Mod_Q1BSP_DecompressVis: input underrun (during zero-run) on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
1146 for (c = *in++;c > 0;c--)
1150 Con_Printf("Mod_Q1BSP_DecompressVis: output overrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, out - outstart, outend - outstart);
1161 R_Q1BSP_LoadSplitSky
1163 A sky texture is 256*128, with the right side being a masked overlay
1166 void R_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesperpixel)
1169 unsigned solidpixels[128*128], alphapixels[128*128];
1171 // if sky isn't the right size, just use it as a solid layer
1172 if (width != 256 || height != 128)
1174 loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", width, height, src, bytesperpixel == 4 ? TEXTYPE_RGBA : TEXTYPE_PALETTE, TEXF_PRECACHE, bytesperpixel == 1 ? palette_complete : NULL);
1175 loadmodel->brush.alphaskytexture = NULL;
1179 if (bytesperpixel == 4)
1181 for (i = 0;i < 128;i++)
1183 for (j = 0;j < 128;j++)
1185 solidpixels[(i*128) + j] = ((unsigned *)src)[i*256+j+128];
1186 alphapixels[(i*128) + j] = ((unsigned *)src)[i*256+j];
1192 // make an average value for the back to avoid
1193 // a fringe on the top level
1202 for (i = 0;i < 128;i++)
1204 for (j = 0;j < 128;j++)
1206 rgba.i = palette_complete[src[i*256 + j + 128]];
1212 rgba.b[0] = r/(128*128);
1213 rgba.b[1] = g/(128*128);
1214 rgba.b[2] = b/(128*128);
1216 for (i = 0;i < 128;i++)
1218 for (j = 0;j < 128;j++)
1220 solidpixels[(i*128) + j] = palette_complete[src[i*256 + j + 128]];
1221 alphapixels[(i*128) + j] = (p = src[i*256 + j]) ? palette_complete[p] : rgba.i;
1226 loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", 128, 128, (unsigned char *) solidpixels, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
1227 loadmodel->brush.alphaskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_alphatexture", 128, 128, (unsigned char *) alphapixels, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
1230 static void Mod_Q1BSP_LoadTextures(lump_t *l)
1232 int i, j, k, num, max, altmax, mtwidth, mtheight, *dofs, incomplete;
1234 texture_t *tx, *tx2, *anims[10], *altanims[10];
1236 unsigned char *data, *mtdata;
1238 char mapname[MAX_QPATH], name[MAX_QPATH];
1240 loadmodel->data_textures = NULL;
1242 // add two slots for notexture walls and notexture liquids
1245 m = (dmiptexlump_t *)(mod_base + l->fileofs);
1246 m->nummiptex = LittleLong (m->nummiptex);
1247 loadmodel->num_textures = m->nummiptex + 2;
1252 loadmodel->num_textures = 2;
1255 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
1257 // fill out all slots with notexture
1258 for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
1260 strlcpy(tx->name, "NO TEXTURE FOUND", sizeof(tx->name));
1263 tx->numskinframes = 1;
1264 tx->skinframerate = 1;
1265 tx->currentskinframe = tx->skinframes;
1266 tx->skinframes[0].base = r_texture_notexture;
1267 tx->backgroundcurrentskinframe = tx->backgroundskinframes;
1268 tx->basematerialflags = 0;
1269 if (i == loadmodel->num_textures - 1)
1271 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES;
1272 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1273 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1277 tx->basematerialflags |= MATERIALFLAG_WALL;
1278 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1279 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1281 tx->currentframe = tx;
1287 s = loadmodel->name;
1288 if (!strncasecmp(s, "maps/", 5))
1290 FS_StripExtension(s, mapname, sizeof(mapname));
1292 // just to work around bounds checking when debugging with it (array index out of bounds error thing)
1294 // LordHavoc: mostly rewritten map texture loader
1295 for (i = 0;i < m->nummiptex;i++)
1297 dofs[i] = LittleLong(dofs[i]);
1298 if (dofs[i] == -1 || r_nosurftextures.integer)
1300 dmiptex = (miptex_t *)((unsigned char *)m + dofs[i]);
1302 // make sure name is no more than 15 characters
1303 for (j = 0;dmiptex->name[j] && j < 15;j++)
1304 name[j] = dmiptex->name[j];
1307 mtwidth = LittleLong(dmiptex->width);
1308 mtheight = LittleLong(dmiptex->height);
1310 j = LittleLong(dmiptex->offsets[0]);
1314 if (j < 40 || j + mtwidth * mtheight > l->filelen)
1316 Con_Printf("Texture \"%s\" in \"%s\"is corrupt or incomplete\n", dmiptex->name, loadmodel->name);
1319 mtdata = (unsigned char *)dmiptex + j;
1322 if ((mtwidth & 15) || (mtheight & 15))
1323 Con_Printf("warning: texture \"%s\" in \"%s\" is not 16 aligned\n", dmiptex->name, loadmodel->name);
1325 // LordHavoc: force all names to lowercase
1326 for (j = 0;name[j];j++)
1327 if (name[j] >= 'A' && name[j] <= 'Z')
1328 name[j] += 'a' - 'A';
1330 tx = loadmodel->data_textures + i;
1331 strlcpy(tx->name, name, sizeof(tx->name));
1332 tx->width = mtwidth;
1333 tx->height = mtheight;
1337 sprintf(tx->name, "unnamed%i", i);
1338 Con_Printf("warning: unnamed texture in %s, renaming to %s\n", loadmodel->name, tx->name);
1341 if (cls.state != ca_dedicated)
1343 // LordHavoc: HL sky textures are entirely different than quake
1344 if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == 256 && mtheight == 128)
1346 if (loadmodel->isworldmodel)
1348 data = loadimagepixels(tx->name, false, 0, 0);
1351 R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1354 else if (mtdata != NULL)
1355 R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1360 if (!Mod_LoadSkinFrame(&tx->skinframes[0], gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s/%s", mapname, tx->name), TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, true)
1361 && !Mod_LoadSkinFrame(&tx->skinframes[0], gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s", tx->name), TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, true))
1363 // did not find external texture, load it from the bsp or wad3
1364 if (loadmodel->brush.ishlbsp)
1366 // internal texture overrides wad
1367 unsigned char *pixels, *freepixels;
1368 pixels = freepixels = NULL;
1370 pixels = W_ConvertWAD3Texture(dmiptex);
1372 pixels = freepixels = W_GetTexture(tx->name);
1375 tx->width = image_width;
1376 tx->height = image_height;
1377 Mod_LoadSkinFrame_Internal(&tx->skinframes[0], tx->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, false, pixels, image_width, image_height, 32, NULL, NULL);
1380 Mem_Free(freepixels);
1382 else if (mtdata) // texture included
1383 Mod_LoadSkinFrame_Internal(&tx->skinframes[0], tx->name, TEXF_MIPMAP | TEXF_PRECACHE | TEXF_PICMIP, false, r_fullbrights.integer, mtdata, tx->width, tx->height, 8, NULL, NULL);
1386 if (tx->skinframes[0].base == NULL)
1391 tx->skinframes[0].base = r_texture_notexture;
1395 tx->basematerialflags = 0;
1396 if (tx->name[0] == '*')
1398 // LordHavoc: some turbulent textures should not be affected by wateralpha
1399 if (strncmp(tx->name,"*lava",5)
1400 && strncmp(tx->name,"*teleport",9)
1401 && strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1402 tx->basematerialflags |= MATERIALFLAG_WATERALPHA;
1403 if (!strncmp(tx->name, "*lava", 5))
1405 tx->supercontents = mod_q1bsp_texture_lava.supercontents;
1406 tx->surfaceflags = mod_q1bsp_texture_lava.surfaceflags;
1408 else if (!strncmp(tx->name, "*slime", 6))
1410 tx->supercontents = mod_q1bsp_texture_slime.supercontents;
1411 tx->surfaceflags = mod_q1bsp_texture_slime.surfaceflags;
1415 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1416 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1418 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES;
1420 else if (tx->name[0] == 's' && tx->name[1] == 'k' && tx->name[2] == 'y')
1422 tx->supercontents = mod_q1bsp_texture_sky.supercontents;
1423 tx->surfaceflags = mod_q1bsp_texture_sky.surfaceflags;
1424 tx->basematerialflags |= MATERIALFLAG_SKY;
1428 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1429 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1430 tx->basematerialflags |= MATERIALFLAG_WALL;
1432 if (tx->skinframes[0].fog)
1433 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT;
1435 // start out with no animation
1436 tx->currentframe = tx;
1439 // sequence the animations
1440 for (i = 0;i < m->nummiptex;i++)
1442 tx = loadmodel->data_textures + i;
1443 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1445 if (tx->anim_total[0] || tx->anim_total[1])
1446 continue; // already sequenced
1448 // find the number of frames in the animation
1449 memset(anims, 0, sizeof(anims));
1450 memset(altanims, 0, sizeof(altanims));
1452 for (j = i;j < m->nummiptex;j++)
1454 tx2 = loadmodel->data_textures + j;
1455 if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
1459 if (num >= '0' && num <= '9')
1460 anims[num - '0'] = tx2;
1461 else if (num >= 'a' && num <= 'j')
1462 altanims[num - 'a'] = tx2;
1464 Con_Printf("Bad animating texture %s\n", tx->name);
1468 for (j = 0;j < 10;j++)
1475 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
1478 for (j = 0;j < max;j++)
1482 Con_Printf("Missing frame %i of %s\n", j, tx->name);
1486 for (j = 0;j < altmax;j++)
1490 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
1499 // if there is no alternate animation, duplicate the primary
1500 // animation into the alternate
1502 for (k = 0;k < 10;k++)
1503 altanims[k] = anims[k];
1506 // link together the primary animation
1507 for (j = 0;j < max;j++)
1510 tx2->animated = true;
1511 tx2->anim_total[0] = max;
1512 tx2->anim_total[1] = altmax;
1513 for (k = 0;k < 10;k++)
1515 tx2->anim_frames[0][k] = anims[k];
1516 tx2->anim_frames[1][k] = altanims[k];
1520 // if there really is an alternate anim...
1521 if (anims[0] != altanims[0])
1523 // link together the alternate animation
1524 for (j = 0;j < altmax;j++)
1527 tx2->animated = true;
1528 // the primary/alternate are reversed here
1529 tx2->anim_total[0] = altmax;
1530 tx2->anim_total[1] = max;
1531 for (k = 0;k < 10;k++)
1533 tx2->anim_frames[0][k] = altanims[k];
1534 tx2->anim_frames[1][k] = anims[k];
1541 static void Mod_Q1BSP_LoadLighting(lump_t *l)
1544 unsigned char *in, *out, *data, d;
1545 char litfilename[MAX_QPATH];
1546 char dlitfilename[MAX_QPATH];
1547 fs_offset_t filesize;
1548 if (loadmodel->brush.ishlbsp) // LordHavoc: load the colored lighting data straight
1550 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1551 for (i=0; i<l->filelen; i++)
1552 loadmodel->brushq1.lightdata[i] = mod_base[l->fileofs+i] >>= 1;
1554 else if (loadmodel->brush.ismcbsp)
1556 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1557 memcpy(loadmodel->brushq1.lightdata, mod_base + l->fileofs, l->filelen);
1559 else // LordHavoc: bsp version 29 (normal white lighting)
1561 // LordHavoc: hope is not lost yet, check for a .lit file to load
1562 strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
1563 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
1564 strlcpy (dlitfilename, litfilename, sizeof (dlitfilename));
1565 strlcat (litfilename, ".lit", sizeof (litfilename));
1566 strlcat (dlitfilename, ".dlit", sizeof (dlitfilename));
1567 data = (unsigned char*) FS_LoadFile(litfilename, tempmempool, false, &filesize);
1570 if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1572 i = LittleLong(((int *)data)[1]);
1575 Con_DPrintf("loaded %s\n", litfilename);
1576 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1577 memcpy(loadmodel->brushq1.lightdata, data + 8, filesize - 8);
1579 data = (unsigned char*) FS_LoadFile(dlitfilename, tempmempool, false, &filesize);
1582 if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1584 i = LittleLong(((int *)data)[1]);
1587 Con_DPrintf("loaded %s\n", dlitfilename);
1588 loadmodel->brushq1.nmaplightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1589 memcpy(loadmodel->brushq1.nmaplightdata, data + 8, filesize - 8);
1590 loadmodel->brushq3.deluxemapping_modelspace = false;
1591 loadmodel->brushq3.deluxemapping = true;
1600 Con_Printf("Unknown .lit file version (%d)\n", i);
1602 else if (filesize == 8)
1603 Con_Print("Empty .lit file, ignoring\n");
1605 Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", filesize, 8 + l->filelen * 3);
1612 // LordHavoc: oh well, expand the white lighting data
1615 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen*3);
1616 in = mod_base + l->fileofs;
1617 out = loadmodel->brushq1.lightdata;
1618 for (i = 0;i < l->filelen;i++)
1628 static void Mod_Q1BSP_LoadVisibility(lump_t *l)
1630 loadmodel->brushq1.num_compressedpvs = 0;
1631 loadmodel->brushq1.data_compressedpvs = NULL;
1634 loadmodel->brushq1.num_compressedpvs = l->filelen;
1635 loadmodel->brushq1.data_compressedpvs = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1636 memcpy(loadmodel->brushq1.data_compressedpvs, mod_base + l->fileofs, l->filelen);
1639 // used only for HalfLife maps
1640 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
1642 char key[128], value[4096];
1647 if (!COM_ParseTokenConsole(&data))
1649 if (com_token[0] != '{')
1653 if (!COM_ParseTokenConsole(&data))
1655 if (com_token[0] == '}')
1656 break; // end of worldspawn
1657 if (com_token[0] == '_')
1658 strlcpy(key, com_token + 1, sizeof(key));
1660 strlcpy(key, com_token, sizeof(key));
1661 while (key[strlen(key)-1] == ' ') // remove trailing spaces
1662 key[strlen(key)-1] = 0;
1663 if (!COM_ParseTokenConsole(&data))
1665 dpsnprintf(value, sizeof(value), "%s", com_token);
1666 if (!strcmp("wad", key)) // for HalfLife maps
1668 if (loadmodel->brush.ishlbsp)
1671 for (i = 0;i < (int)sizeof(value);i++)
1672 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
1676 for (;i < (int)sizeof(value);i++)
1678 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
1679 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
1681 else if (value[i] == ';' || value[i] == 0)
1685 strlcpy(wadname, "textures/", sizeof(wadname));
1686 strlcat(wadname, &value[j], sizeof(wadname));
1687 W_LoadTextureWadFile(wadname, false);
1699 static void Mod_Q1BSP_LoadEntities(lump_t *l)
1701 loadmodel->brush.entities = NULL;
1704 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1705 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
1706 if (loadmodel->brush.ishlbsp)
1707 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
1711 static void Mod_Q1BSP_LoadVertexes(lump_t *l)
1717 in = (dvertex_t *)(mod_base + l->fileofs);
1718 if (l->filelen % sizeof(*in))
1719 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
1720 count = l->filelen / sizeof(*in);
1721 out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1723 loadmodel->brushq1.vertexes = out;
1724 loadmodel->brushq1.numvertexes = count;
1726 for ( i=0 ; i<count ; i++, in++, out++)
1728 out->position[0] = LittleFloat(in->point[0]);
1729 out->position[1] = LittleFloat(in->point[1]);
1730 out->position[2] = LittleFloat(in->point[2]);
1734 // The following two functions should be removed and MSG_* or SZ_* function sets adjusted so they
1735 // can be used for this
1737 int SB_ReadInt (unsigned char **buffer)
1740 i = ((*buffer)[0]) + 256*((*buffer)[1]) + 65536*((*buffer)[2]) + 16777216*((*buffer)[3]);
1746 float SB_ReadFloat (unsigned char **buffer)
1754 u.i = SB_ReadInt (buffer);
1758 static void Mod_Q1BSP_LoadSubmodels(lump_t *l, hullinfo_t *hullinfo)
1760 unsigned char *index;
1764 index = (unsigned char *)(mod_base + l->fileofs);
1765 if (l->filelen % (48+4*hullinfo->filehulls))
1766 Host_Error ("Mod_Q1BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
1768 count = l->filelen / (48+4*hullinfo->filehulls);
1769 out = (dmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
1771 loadmodel->brushq1.submodels = out;
1772 loadmodel->brush.numsubmodels = count;
1774 for (i = 0; i < count; i++, out++)
1776 // spread out the mins / maxs by a pixel
1777 out->mins[0] = SB_ReadFloat (&index) - 1;
1778 out->mins[1] = SB_ReadFloat (&index) - 1;
1779 out->mins[2] = SB_ReadFloat (&index) - 1;
1780 out->maxs[0] = SB_ReadFloat (&index) + 1;
1781 out->maxs[1] = SB_ReadFloat (&index) + 1;
1782 out->maxs[2] = SB_ReadFloat (&index) + 1;
1783 out->origin[0] = SB_ReadFloat (&index);
1784 out->origin[1] = SB_ReadFloat (&index);
1785 out->origin[2] = SB_ReadFloat (&index);
1786 for (j = 0; j < hullinfo->filehulls; j++)
1787 out->headnode[j] = SB_ReadInt (&index);
1788 out->visleafs = SB_ReadInt (&index);
1789 out->firstface = SB_ReadInt (&index);
1790 out->numfaces = SB_ReadInt (&index);
1794 static void Mod_Q1BSP_LoadEdges(lump_t *l)
1800 in = (dedge_t *)(mod_base + l->fileofs);
1801 if (l->filelen % sizeof(*in))
1802 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
1803 count = l->filelen / sizeof(*in);
1804 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1806 loadmodel->brushq1.edges = out;
1807 loadmodel->brushq1.numedges = count;
1809 for ( i=0 ; i<count ; i++, in++, out++)
1811 out->v[0] = (unsigned short)LittleShort(in->v[0]);
1812 out->v[1] = (unsigned short)LittleShort(in->v[1]);
1813 if (out->v[0] >= loadmodel->brushq1.numvertexes || out->v[1] >= loadmodel->brushq1.numvertexes)
1815 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);
1822 static void Mod_Q1BSP_LoadTexinfo(lump_t *l)
1826 int i, j, k, count, miptex;
1828 in = (texinfo_t *)(mod_base + l->fileofs);
1829 if (l->filelen % sizeof(*in))
1830 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
1831 count = l->filelen / sizeof(*in);
1832 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1834 loadmodel->brushq1.texinfo = out;
1835 loadmodel->brushq1.numtexinfo = count;
1837 for (i = 0;i < count;i++, in++, out++)
1839 for (k = 0;k < 2;k++)
1840 for (j = 0;j < 4;j++)
1841 out->vecs[k][j] = LittleFloat(in->vecs[k][j]);
1843 miptex = LittleLong(in->miptex);
1844 out->flags = LittleLong(in->flags);
1846 out->texture = NULL;
1847 if (loadmodel->data_textures)
1849 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
1850 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
1852 out->texture = loadmodel->data_textures + miptex;
1854 if (out->flags & TEX_SPECIAL)
1856 // if texture chosen is NULL or the shader needs a lightmap,
1857 // force to notexture water shader
1858 if (out->texture == NULL || out->texture->basematerialflags & MATERIALFLAG_WALL)
1859 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 1);
1863 // if texture chosen is NULL, force to notexture
1864 if (out->texture == NULL)
1865 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 2);
1871 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
1876 mins[0] = mins[1] = mins[2] = 9999;
1877 maxs[0] = maxs[1] = maxs[2] = -9999;
1879 for (i = 0;i < numverts;i++)
1881 for (j = 0;j < 3;j++, v++)
1891 #define MAX_SUBDIVPOLYTRIANGLES 4096
1892 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
1894 static int subdivpolyverts, subdivpolytriangles;
1895 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
1896 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
1898 static int subdivpolylookupvert(vec3_t v)
1901 for (i = 0;i < subdivpolyverts;i++)
1902 if (subdivpolyvert[i][0] == v[0]
1903 && subdivpolyvert[i][1] == v[1]
1904 && subdivpolyvert[i][2] == v[2])
1906 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
1907 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
1908 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
1909 return subdivpolyverts++;
1912 static void SubdividePolygon(int numverts, float *verts)
1914 int i, i1, i2, i3, f, b, c, p;
1915 vec3_t mins, maxs, front[256], back[256];
1916 float m, *pv, *cv, dist[256], frac;
1919 Host_Error("SubdividePolygon: ran out of verts in buffer");
1921 BoundPoly(numverts, verts, mins, maxs);
1923 for (i = 0;i < 3;i++)
1925 m = (mins[i] + maxs[i]) * 0.5;
1926 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
1927 if (maxs[i] - m < 8)
1929 if (m - mins[i] < 8)
1933 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
1934 dist[c] = cv[i] - m;
1937 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
1941 VectorCopy(pv, front[f]);
1946 VectorCopy(pv, back[b]);
1949 if (dist[p] == 0 || dist[c] == 0)
1951 if ((dist[p] > 0) != (dist[c] > 0) )
1954 frac = dist[p] / (dist[p] - dist[c]);
1955 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
1956 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
1957 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
1963 SubdividePolygon(f, front[0]);
1964 SubdividePolygon(b, back[0]);
1968 i1 = subdivpolylookupvert(verts);
1969 i2 = subdivpolylookupvert(verts + 3);
1970 for (i = 2;i < numverts;i++)
1972 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
1974 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
1978 i3 = subdivpolylookupvert(verts + i * 3);
1979 subdivpolyindex[subdivpolytriangles][0] = i1;
1980 subdivpolyindex[subdivpolytriangles][1] = i2;
1981 subdivpolyindex[subdivpolytriangles][2] = i3;
1983 subdivpolytriangles++;
1987 //Breaks a polygon up along axial 64 unit
1988 //boundaries so that turbulent and sky warps
1989 //can be done reasonably.
1990 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
1996 subdivpolytriangles = 0;
1997 subdivpolyverts = 0;
1998 SubdividePolygon(surface->num_vertices, (surface->mesh->data_vertex3f + 3 * surface->num_firstvertex));
1999 if (subdivpolytriangles < 1)
2000 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?");
2002 surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
2003 mesh->num_vertices = subdivpolyverts;
2004 mesh->num_triangles = subdivpolytriangles;
2005 mesh->vertex = (surfvertex_t *)(mesh + 1);
2006 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
2007 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
2009 for (i = 0;i < mesh->num_triangles;i++)
2010 for (j = 0;j < 3;j++)
2011 mesh->index[i*3+j] = subdivpolyindex[i][j];
2013 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
2015 VectorCopy(subdivpolyvert[i], v->v);
2016 v->st[0] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[0]);
2017 v->st[1] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[1]);
2022 static qboolean Mod_Q1BSP_AllocLightmapBlock(int *lineused, int totalwidth, int totalheight, int blockwidth, int blockheight, int *outx, int *outy)
2025 int bestx = totalwidth, besty = 0;
2026 // find the left-most space we can find
2027 for (y = 0;y <= totalheight - blockheight;y++)
2030 for (y2 = 0;y2 < blockheight;y2++)
2031 x2 = max(x2, lineused[y+y2]);
2038 // if the best was not good enough, return failure
2039 if (bestx > totalwidth - blockwidth)
2041 // we found a good spot
2046 // now mark the space used
2047 for (y2 = 0;y2 < blockheight;y2++)
2048 lineused[besty+y2] = bestx + blockwidth;
2053 static void Mod_Q1BSP_LoadFaces(lump_t *l)
2056 msurface_t *surface;
2057 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber;
2058 float texmins[2], texmaxs[2], val, lightmaptexcoordscale;
2059 #define LIGHTMAPSIZE 256
2060 rtexture_t *lightmaptexture, *deluxemaptexture;
2061 int lightmap_lineused[LIGHTMAPSIZE];
2063 in = (dface_t *)(mod_base + l->fileofs);
2064 if (l->filelen % sizeof(*in))
2065 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
2066 count = l->filelen / sizeof(*in);
2067 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
2068 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
2070 loadmodel->num_surfaces = count;
2074 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs);surfacenum < count;surfacenum++, in++)
2076 numedges = LittleShort(in->numedges);
2077 totalverts += numedges;
2078 totaltris += numedges - 2;
2081 Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false, false);
2083 lightmaptexture = NULL;
2084 deluxemaptexture = r_texture_blanknormalmap;
2086 lightmaptexcoordscale = 1.0f / (float)LIGHTMAPSIZE;
2090 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs), surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, in++, surface++)
2092 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
2094 // FIXME: validate edges, texinfo, etc?
2095 firstedge = LittleLong(in->firstedge);
2096 numedges = LittleShort(in->numedges);
2097 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)
2098 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)", firstedge, numedges, loadmodel->brushq1.numsurfedges);
2099 i = LittleShort(in->texinfo);
2100 if ((unsigned int) i >= (unsigned int) loadmodel->brushq1.numtexinfo)
2101 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)", i, loadmodel->brushq1.numtexinfo);
2102 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + i;
2103 surface->texture = surface->lightmapinfo->texinfo->texture;
2105 planenum = LittleShort(in->planenum);
2106 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
2107 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)", planenum, loadmodel->brush.num_planes);
2109 //surface->flags = surface->texture->flags;
2110 //if (LittleShort(in->side))
2111 // surface->flags |= SURF_PLANEBACK;
2112 //surface->plane = loadmodel->brush.data_planes + planenum;
2114 surface->num_firstvertex = totalverts;
2115 surface->num_vertices = numedges;
2116 surface->num_firsttriangle = totaltris;
2117 surface->num_triangles = numedges - 2;
2118 totalverts += numedges;
2119 totaltris += numedges - 2;
2121 // convert edges back to a normal polygon
2122 for (i = 0;i < surface->num_vertices;i++)
2124 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
2127 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2129 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2130 s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2131 t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2132 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
2133 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
2134 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
2135 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
2136 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
2139 for (i = 0;i < surface->num_triangles;i++)
2141 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
2142 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
2143 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
2146 // compile additional data about the surface geometry
2147 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);
2148 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);
2149 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
2151 // generate surface extents information
2152 texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2153 texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2154 for (i = 1;i < surface->num_vertices;i++)
2156 for (j = 0;j < 2;j++)
2158 val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
2159 texmins[j] = min(texmins[j], val);
2160 texmaxs[j] = max(texmaxs[j], val);
2163 for (i = 0;i < 2;i++)
2165 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
2166 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
2169 smax = surface->lightmapinfo->extents[0] >> 4;
2170 tmax = surface->lightmapinfo->extents[1] >> 4;
2171 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2172 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2175 for (i = 0;i < MAXLIGHTMAPS;i++)
2176 surface->lightmapinfo->styles[i] = in->styles[i];
2177 surface->lightmaptexture = NULL;
2178 surface->deluxemaptexture = r_texture_blanknormalmap;
2179 i = LittleLong(in->lightofs);
2182 surface->lightmapinfo->samples = NULL;
2183 // give non-lightmapped water a 1x white lightmap
2184 if ((surface->texture->basematerialflags & MATERIALFLAG_WATER) && (surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
2186 surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2187 surface->lightmapinfo->styles[0] = 0;
2188 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
2191 else if (loadmodel->brush.ishlbsp) // LordHavoc: HalfLife map (bsp version 30)
2192 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + i;
2193 else // LordHavoc: white lighting (bsp version 29)
2195 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (i * 3);
2196 if (loadmodel->brushq1.nmaplightdata)
2197 surface->lightmapinfo->nmapsamples = loadmodel->brushq1.nmaplightdata + (i * 3);
2200 // check if we should apply a lightmap to this
2201 if (!(surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
2203 int i, iu, iv, lightmapx, lightmapy;
2204 float u, v, ubase, vbase, uscale, vscale;
2206 if (ssize > 256 || tsize > 256)
2207 Host_Error("Bad surface extents");
2208 // force lightmap upload on first time seeing the surface
2209 surface->cached_dlight = true;
2210 // stainmap for permanent marks on walls
2211 surface->lightmapinfo->stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2213 memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
2215 // find a place for this lightmap
2216 if (!lightmaptexture || !Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, LIGHTMAPSIZE, LIGHTMAPSIZE, ssize, tsize, &lightmapx, &lightmapy))
2218 // could not find room, make a new lightmap
2219 lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%i", lightmapnumber), LIGHTMAPSIZE, LIGHTMAPSIZE, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2220 if (loadmodel->brushq1.nmaplightdata)
2221 deluxemaptexture = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%i", lightmapnumber), LIGHTMAPSIZE, LIGHTMAPSIZE, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2223 memset(lightmap_lineused, 0, sizeof(lightmap_lineused));
2224 Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, LIGHTMAPSIZE, LIGHTMAPSIZE, ssize, tsize, &lightmapx, &lightmapy);
2227 surface->lightmaptexture = lightmaptexture;
2228 surface->deluxemaptexture = deluxemaptexture;
2229 surface->lightmapinfo->lightmaporigin[0] = lightmapx;
2230 surface->lightmapinfo->lightmaporigin[1] = lightmapy;
2232 ubase = lightmapx * lightmaptexcoordscale;
2233 vbase = lightmapy * lightmaptexcoordscale;
2234 uscale = lightmaptexcoordscale;
2235 vscale = lightmaptexcoordscale;
2237 for (i = 0;i < surface->num_vertices;i++)
2239 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);
2240 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);
2241 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
2242 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
2243 // LordHavoc: calc lightmap data offset for vertex lighting to use
2246 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
2252 static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
2255 // Host_Error("Mod_Q1BSP_LoadNodes_RecursiveSetParent: runaway recursion");
2256 node->parent = parent;
2259 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
2260 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
2264 static void Mod_Q1BSP_LoadNodes(lump_t *l)
2270 in = (dnode_t *)(mod_base + l->fileofs);
2271 if (l->filelen % sizeof(*in))
2272 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
2273 count = l->filelen / sizeof(*in);
2274 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2276 loadmodel->brush.data_nodes = out;
2277 loadmodel->brush.num_nodes = count;
2279 for ( i=0 ; i<count ; i++, in++, out++)
2281 for (j=0 ; j<3 ; j++)
2283 out->mins[j] = LittleShort(in->mins[j]);
2284 out->maxs[j] = LittleShort(in->maxs[j]);
2287 p = LittleLong(in->planenum);
2288 out->plane = loadmodel->brush.data_planes + p;
2290 out->firstsurface = LittleShort(in->firstface);
2291 out->numsurfaces = LittleShort(in->numfaces);
2293 for (j=0 ; j<2 ; j++)
2295 p = LittleShort(in->children[j]);
2297 out->children[j] = loadmodel->brush.data_nodes + p;
2299 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + (-1 - p));
2303 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
2306 static void Mod_Q1BSP_LoadLeafs(lump_t *l)
2312 in = (dleaf_t *)(mod_base + l->fileofs);
2313 if (l->filelen % sizeof(*in))
2314 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2315 count = l->filelen / sizeof(*in);
2316 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2318 loadmodel->brush.data_leafs = out;
2319 loadmodel->brush.num_leafs = count;
2320 // get visleafs from the submodel data
2321 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2322 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2323 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2324 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2326 for ( i=0 ; i<count ; i++, in++, out++)
2328 for (j=0 ; j<3 ; j++)
2330 out->mins[j] = LittleShort(in->mins[j]);
2331 out->maxs[j] = LittleShort(in->maxs[j]);
2334 // FIXME: this function could really benefit from some error checking
2336 out->contents = LittleLong(in->contents);
2338 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + LittleShort(in->firstmarksurface);
2339 out->numleafsurfaces = LittleShort(in->nummarksurfaces);
2340 if (out->firstleafsurface < 0 || LittleShort(in->firstmarksurface) + out->numleafsurfaces > loadmodel->brush.num_leafsurfaces)
2342 Con_Printf("Mod_Q1BSP_LoadLeafs: invalid leafsurface range %i:%i outside range %i:%i\n", out->firstleafsurface, out->firstleafsurface + out->numleafsurfaces, 0, loadmodel->brush.num_leafsurfaces);
2343 out->firstleafsurface = NULL;
2344 out->numleafsurfaces = 0;
2347 out->clusterindex = i - 1;
2348 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
2349 out->clusterindex = -1;
2351 p = LittleLong(in->visofs);
2352 // ignore visofs errors on leaf 0 (solid)
2353 if (p >= 0 && out->clusterindex >= 0)
2355 if (p >= loadmodel->brushq1.num_compressedpvs)
2356 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
2358 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);
2361 for (j = 0;j < 4;j++)
2362 out->ambient_sound_level[j] = in->ambient_level[j];
2364 // FIXME: Insert caustics here
2368 static void Mod_Q1BSP_LoadClipnodes(lump_t *l, hullinfo_t *hullinfo)
2370 dclipnode_t *in, *out;
2374 in = (dclipnode_t *)(mod_base + l->fileofs);
2375 if (l->filelen % sizeof(*in))
2376 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
2377 count = l->filelen / sizeof(*in);
2378 out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2380 loadmodel->brushq1.clipnodes = out;
2381 loadmodel->brushq1.numclipnodes = count;
2383 for (i = 1; i < hullinfo->numhulls; i++)
2385 hull = &loadmodel->brushq1.hulls[i];
2386 hull->clipnodes = out;
2387 hull->firstclipnode = 0;
2388 hull->lastclipnode = count-1;
2389 hull->planes = loadmodel->brush.data_planes;
2390 hull->clip_mins[0] = hullinfo->hullsizes[i][0][0];
2391 hull->clip_mins[1] = hullinfo->hullsizes[i][0][1];
2392 hull->clip_mins[2] = hullinfo->hullsizes[i][0][2];
2393 hull->clip_maxs[0] = hullinfo->hullsizes[i][1][0];
2394 hull->clip_maxs[1] = hullinfo->hullsizes[i][1][1];
2395 hull->clip_maxs[2] = hullinfo->hullsizes[i][1][2];
2396 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2399 for (i=0 ; i<count ; i++, out++, in++)
2401 out->planenum = LittleLong(in->planenum);
2402 out->children[0] = LittleShort(in->children[0]);
2403 out->children[1] = LittleShort(in->children[1]);
2404 if (out->planenum < 0 || out->planenum >= loadmodel->brush.num_planes)
2405 Host_Error("Corrupt clipping hull(out of range planenum)");
2406 if (out->children[0] >= count || out->children[1] >= count)
2407 Host_Error("Corrupt clipping hull(out of range child)");
2411 //Duplicate the drawing hull structure as a clipping hull
2412 static void Mod_Q1BSP_MakeHull0(void)
2419 hull = &loadmodel->brushq1.hulls[0];
2421 in = loadmodel->brush.data_nodes;
2422 out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(dclipnode_t));
2424 hull->clipnodes = out;
2425 hull->firstclipnode = 0;
2426 hull->lastclipnode = loadmodel->brush.num_nodes - 1;
2427 hull->planes = loadmodel->brush.data_planes;
2429 for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
2431 out->planenum = in->plane - loadmodel->brush.data_planes;
2432 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
2433 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
2437 static void Mod_Q1BSP_LoadLeaffaces(lump_t *l)
2442 in = (short *)(mod_base + l->fileofs);
2443 if (l->filelen % sizeof(*in))
2444 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
2445 loadmodel->brush.num_leafsurfaces = l->filelen / sizeof(*in);
2446 loadmodel->brush.data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
2448 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
2450 j = (unsigned) LittleShort(in[i]);
2451 if (j >= loadmodel->num_surfaces)
2452 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
2453 loadmodel->brush.data_leafsurfaces[i] = j;
2457 static void Mod_Q1BSP_LoadSurfedges(lump_t *l)
2462 in = (int *)(mod_base + l->fileofs);
2463 if (l->filelen % sizeof(*in))
2464 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
2465 loadmodel->brushq1.numsurfedges = l->filelen / sizeof(*in);
2466 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
2468 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
2469 loadmodel->brushq1.surfedges[i] = LittleLong(in[i]);
2473 static void Mod_Q1BSP_LoadPlanes(lump_t *l)
2479 in = (dplane_t *)(mod_base + l->fileofs);
2480 if (l->filelen % sizeof(*in))
2481 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
2483 loadmodel->brush.num_planes = l->filelen / sizeof(*in);
2484 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
2486 for (i = 0;i < loadmodel->brush.num_planes;i++, in++, out++)
2488 out->normal[0] = LittleFloat(in->normal[0]);
2489 out->normal[1] = LittleFloat(in->normal[1]);
2490 out->normal[2] = LittleFloat(in->normal[2]);
2491 out->dist = LittleFloat(in->dist);
2497 static void Mod_Q1BSP_LoadMapBrushes(void)
2501 int submodel, numbrushes;
2502 qboolean firstbrush;
2503 char *text, *maptext;
2504 char mapfilename[MAX_QPATH];
2505 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
2506 strlcat (mapfilename, ".map", sizeof (mapfilename));
2507 maptext = (unsigned char*) FS_LoadFile(mapfilename, tempmempool, false, NULL);
2511 if (!COM_ParseTokenConsole(&data))
2516 if (!COM_ParseTokenConsole(&data))
2518 if (com_token[0] != '{')
2524 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
2527 if (!COM_ParseTokenConsole(&data))
2529 if (com_token[0] == '}')
2530 break; // end of entity
2531 if (com_token[0] == '{')
2538 if (submodel > loadmodel->brush.numsubmodels)
2540 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
2544 model = loadmodel->brush.submodels[submodel];
2551 if (!COM_ParseTokenConsole(&data))
2553 if (com_token[0] == '}')
2554 break; // end of brush
2555 // each brush face should be this format:
2556 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
2557 // FIXME: support hl .map format
2558 for (pointnum = 0;pointnum < 3;pointnum++)
2560 COM_ParseTokenConsole(&data);
2561 for (componentnum = 0;componentnum < 3;componentnum++)
2563 COM_ParseTokenConsole(&data);
2564 point[pointnum][componentnum] = atof(com_token);
2566 COM_ParseTokenConsole(&data);
2568 COM_ParseTokenConsole(&data);
2569 strlcpy(facetexture, com_token, sizeof(facetexture));
2570 COM_ParseTokenConsole(&data);
2571 //scroll_s = atof(com_token);
2572 COM_ParseTokenConsole(&data);
2573 //scroll_t = atof(com_token);
2574 COM_ParseTokenConsole(&data);
2575 //rotate = atof(com_token);
2576 COM_ParseTokenConsole(&data);
2577 //scale_s = atof(com_token);
2578 COM_ParseTokenConsole(&data);
2579 //scale_t = atof(com_token);
2580 TriangleNormal(point[0], point[1], point[2], planenormal);
2581 VectorNormalizeDouble(planenormal);
2582 planedist = DotProduct(point[0], planenormal);
2583 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
2593 #define MAX_PORTALPOINTS 64
2595 typedef struct portal_s
2598 mnode_t *nodes[2]; // [0] = front side of plane
2599 struct portal_s *next[2];
2601 double points[3*MAX_PORTALPOINTS];
2602 struct portal_s *chain; // all portals are linked into a list
2606 static portal_t *portalchain;
2613 static portal_t *AllocPortal(void)
2616 p = (portal_t *)Mem_Alloc(loadmodel->mempool, sizeof(portal_t));
2617 p->chain = portalchain;
2622 static void FreePortal(portal_t *p)
2627 static void Mod_Q1BSP_RecursiveRecalcNodeBBox(mnode_t *node)
2629 // process only nodes (leafs already had their box calculated)
2633 // calculate children first
2634 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[0]);
2635 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[1]);
2637 // make combined bounding box from children
2638 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
2639 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
2640 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
2641 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
2642 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
2643 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
2646 static void Mod_Q1BSP_FinalizePortals(void)
2648 int i, j, numportals, numpoints;
2649 portal_t *p, *pnext;
2652 mleaf_t *leaf, *endleaf;
2654 // tally up portal and point counts and recalculate bounding boxes for all
2655 // leafs (because qbsp is very sloppy)
2656 leaf = loadmodel->brush.data_leafs;
2657 endleaf = leaf + loadmodel->brush.num_leafs;
2658 for (;leaf < endleaf;leaf++)
2660 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
2661 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
2668 // note: this check must match the one below or it will usually corrupt memory
2669 // 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
2670 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2673 numpoints += p->numpoints * 2;
2677 loadmodel->brush.data_portals = (mportal_t *)Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
2678 loadmodel->brush.num_portals = numportals;
2679 loadmodel->brush.data_portalpoints = (mvertex_t *)((unsigned char *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
2680 loadmodel->brush.num_portalpoints = numpoints;
2681 // clear all leaf portal chains
2682 for (i = 0;i < loadmodel->brush.num_leafs;i++)
2683 loadmodel->brush.data_leafs[i].portals = NULL;
2684 // process all portals in the global portal chain, while freeing them
2685 portal = loadmodel->brush.data_portals;
2686 point = loadmodel->brush.data_portalpoints;
2693 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1])
2695 // note: this check must match the one above or it will usually corrupt memory
2696 // 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
2697 if (((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2699 // first make the back to front portal(forward portal)
2700 portal->points = point;
2701 portal->numpoints = p->numpoints;
2702 portal->plane.dist = p->plane.dist;
2703 VectorCopy(p->plane.normal, portal->plane.normal);
2704 portal->here = (mleaf_t *)p->nodes[1];
2705 portal->past = (mleaf_t *)p->nodes[0];
2707 for (j = 0;j < portal->numpoints;j++)
2709 VectorCopy(p->points + j*3, point->position);
2712 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2713 PlaneClassify(&portal->plane);
2715 // link into leaf's portal chain
2716 portal->next = portal->here->portals;
2717 portal->here->portals = portal;
2719 // advance to next portal
2722 // then make the front to back portal(backward portal)
2723 portal->points = point;
2724 portal->numpoints = p->numpoints;
2725 portal->plane.dist = -p->plane.dist;
2726 VectorNegate(p->plane.normal, portal->plane.normal);
2727 portal->here = (mleaf_t *)p->nodes[0];
2728 portal->past = (mleaf_t *)p->nodes[1];
2730 for (j = portal->numpoints - 1;j >= 0;j--)
2732 VectorCopy(p->points + j*3, point->position);
2735 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2736 PlaneClassify(&portal->plane);
2738 // link into leaf's portal chain
2739 portal->next = portal->here->portals;
2740 portal->here->portals = portal;
2742 // advance to next portal
2745 // add the portal's polygon points to the leaf bounding boxes
2746 for (i = 0;i < 2;i++)
2748 leaf = (mleaf_t *)p->nodes[i];
2749 for (j = 0;j < p->numpoints;j++)
2751 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
2752 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
2753 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
2754 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
2755 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
2756 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
2763 // now recalculate the node bounding boxes from the leafs
2764 Mod_Q1BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes);
2772 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
2775 Host_Error("AddPortalToNodes: NULL front node");
2777 Host_Error("AddPortalToNodes: NULL back node");
2778 if (p->nodes[0] || p->nodes[1])
2779 Host_Error("AddPortalToNodes: already included");
2780 // 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
2782 p->nodes[0] = front;
2783 p->next[0] = (portal_t *)front->portals;
2784 front->portals = (mportal_t *)p;
2787 p->next[1] = (portal_t *)back->portals;
2788 back->portals = (mportal_t *)p;
2793 RemovePortalFromNode
2796 static void RemovePortalFromNodes(portal_t *portal)
2800 void **portalpointer;
2802 for (i = 0;i < 2;i++)
2804 node = portal->nodes[i];
2806 portalpointer = (void **) &node->portals;
2809 t = (portal_t *)*portalpointer;
2811 Host_Error("RemovePortalFromNodes: portal not in leaf");
2815 if (portal->nodes[0] == node)
2817 *portalpointer = portal->next[0];
2818 portal->nodes[0] = NULL;
2820 else if (portal->nodes[1] == node)
2822 *portalpointer = portal->next[1];
2823 portal->nodes[1] = NULL;
2826 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2830 if (t->nodes[0] == node)
2831 portalpointer = (void **) &t->next[0];
2832 else if (t->nodes[1] == node)
2833 portalpointer = (void **) &t->next[1];
2835 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2840 #define PORTAL_DIST_EPSILON (1.0 / 32.0)
2841 static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
2844 mnode_t *front, *back, *other_node;
2845 mplane_t clipplane, *plane;
2846 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
2847 int numfrontpoints, numbackpoints;
2848 double frontpoints[3*MAX_PORTALPOINTS], backpoints[3*MAX_PORTALPOINTS];
2850 // if a leaf, we're done
2854 plane = node->plane;
2856 front = node->children[0];
2857 back = node->children[1];
2859 Host_Error("Mod_Q1BSP_RecursiveNodePortals: corrupt node hierarchy");
2861 // create the new portal by generating a polygon for the node plane,
2862 // and clipping it by all of the other portals(which came from nodes above this one)
2863 nodeportal = AllocPortal();
2864 nodeportal->plane = *plane;
2866 // 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)
2867 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);
2868 nodeportal->numpoints = 4;
2869 side = 0; // shut up compiler warning
2870 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
2872 clipplane = portal->plane;
2873 if (portal->nodes[0] == portal->nodes[1])
2874 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(1)");
2875 if (portal->nodes[0] == node)
2877 else if (portal->nodes[1] == node)
2879 clipplane.dist = -clipplane.dist;
2880 VectorNegate(clipplane.normal, clipplane.normal);
2884 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2886 for (i = 0;i < nodeportal->numpoints*3;i++)
2887 frontpoints[i] = nodeportal->points[i];
2888 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);
2889 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
2893 if (nodeportal->numpoints < 3)
2895 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
2896 nodeportal->numpoints = 0;
2898 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
2900 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
2901 nodeportal->numpoints = 0;
2904 AddPortalToNodes(nodeportal, front, back);
2906 // split the portals of this node along this node's plane and assign them to the children of this node
2907 // (migrating the portals downward through the tree)
2908 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
2910 if (portal->nodes[0] == portal->nodes[1])
2911 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(2)");
2912 if (portal->nodes[0] == node)
2914 else if (portal->nodes[1] == node)
2917 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2918 nextportal = portal->next[side];
2919 if (!portal->numpoints)
2922 other_node = portal->nodes[!side];
2923 RemovePortalFromNodes(portal);
2925 // cut the portal into two portals, one on each side of the node plane
2926 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);
2928 if (!numfrontpoints)
2931 AddPortalToNodes(portal, back, other_node);
2933 AddPortalToNodes(portal, other_node, back);
2939 AddPortalToNodes(portal, front, other_node);
2941 AddPortalToNodes(portal, other_node, front);
2945 // the portal is split
2946 splitportal = AllocPortal();
2947 temp = splitportal->chain;
2948 *splitportal = *portal;
2949 splitportal->chain = temp;
2950 for (i = 0;i < numbackpoints*3;i++)
2951 splitportal->points[i] = backpoints[i];
2952 splitportal->numpoints = numbackpoints;
2953 for (i = 0;i < numfrontpoints*3;i++)
2954 portal->points[i] = frontpoints[i];
2955 portal->numpoints = numfrontpoints;
2959 AddPortalToNodes(portal, front, other_node);
2960 AddPortalToNodes(splitportal, back, other_node);
2964 AddPortalToNodes(portal, other_node, front);
2965 AddPortalToNodes(splitportal, other_node, back);
2969 Mod_Q1BSP_RecursiveNodePortals(front);
2970 Mod_Q1BSP_RecursiveNodePortals(back);
2973 static void Mod_Q1BSP_MakePortals(void)
2976 Mod_Q1BSP_RecursiveNodePortals(loadmodel->brush.data_nodes);
2977 Mod_Q1BSP_FinalizePortals();
2980 static void Mod_Q1BSP_BuildLightmapUpdateChains(mempool_t *mempool, model_t *model)
2982 int i, j, stylecounts[256], totalcount, remapstyles[256];
2983 msurface_t *surface;
2984 memset(stylecounts, 0, sizeof(stylecounts));
2985 for (i = 0;i < model->nummodelsurfaces;i++)
2987 surface = model->data_surfaces + model->firstmodelsurface + i;
2988 for (j = 0;j < MAXLIGHTMAPS;j++)
2989 stylecounts[surface->lightmapinfo->styles[j]]++;
2992 model->brushq1.light_styles = 0;
2993 for (i = 0;i < 255;i++)
2997 remapstyles[i] = model->brushq1.light_styles++;
2998 totalcount += stylecounts[i] + 1;
3003 model->brushq1.light_style = (unsigned char *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(unsigned char));
3004 model->brushq1.light_stylevalue = (int *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(int));
3005 model->brushq1.light_styleupdatechains = (msurface_t ***)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(msurface_t **));
3006 model->brushq1.light_styleupdatechainsbuffer = (msurface_t **)Mem_Alloc(mempool, totalcount * sizeof(msurface_t *));
3007 model->brushq1.light_styles = 0;
3008 for (i = 0;i < 255;i++)
3010 model->brushq1.light_style[model->brushq1.light_styles++] = i;
3012 for (i = 0;i < model->brushq1.light_styles;i++)
3014 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
3015 j += stylecounts[model->brushq1.light_style[i]] + 1;
3017 for (i = 0;i < model->nummodelsurfaces;i++)
3019 surface = model->data_surfaces + model->firstmodelsurface + i;
3020 for (j = 0;j < MAXLIGHTMAPS;j++)
3021 if (surface->lightmapinfo->styles[j] != 255)
3022 *model->brushq1.light_styleupdatechains[remapstyles[surface->lightmapinfo->styles[j]]]++ = surface;
3025 for (i = 0;i < model->brushq1.light_styles;i++)
3027 *model->brushq1.light_styleupdatechains[i] = NULL;
3028 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
3029 j += stylecounts[model->brushq1.light_style[i]] + 1;
3033 //Returns PVS data for a given point
3034 //(note: can return NULL)
3035 static unsigned char *Mod_Q1BSP_GetPVS(model_t *model, const vec3_t p)
3038 node = model->brush.data_nodes;
3040 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
3041 if (((mleaf_t *)node)->clusterindex >= 0)
3042 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3047 static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
3051 float d = PlaneDiff(org, node->plane);
3053 node = node->children[0];
3054 else if (d < -radius)
3055 node = node->children[1];
3058 // go down both sides
3059 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
3060 node = node->children[1];
3063 // if this leaf is in a cluster, accumulate the pvs bits
3064 if (((mleaf_t *)node)->clusterindex >= 0)
3067 unsigned char *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3068 for (i = 0;i < pvsbytes;i++)
3069 pvsbuffer[i] |= pvs[i];
3073 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
3074 //of the given point.
3075 static int Mod_Q1BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength)
3077 int bytes = model->brush.num_pvsclusterbytes;
3078 bytes = min(bytes, pvsbufferlength);
3079 if (r_novis.integer || !model->brush.num_pvsclusters || !Mod_Q1BSP_GetPVS(model, org))
3081 memset(pvsbuffer, 0xFF, bytes);
3084 memset(pvsbuffer, 0, bytes);
3085 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes);
3089 static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
3094 VectorSubtract(inmaxs, inmins, size);
3095 if (cmodel->brush.ismcbsp)
3098 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3099 else if (size[2] < 48) // pick the nearest of 40 or 56
3100 hull = &cmodel->brushq1.hulls[2]; // 16x16x40
3102 hull = &cmodel->brushq1.hulls[1]; // 16x16x56
3104 else if (cmodel->brush.ishlbsp)
3107 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3108 else if (size[0] <= 32)
3110 if (size[2] < 54) // pick the nearest of 36 or 72
3111 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
3113 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
3116 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
3121 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3122 else if (size[0] <= 32)
3123 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
3125 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
3127 VectorCopy(inmins, outmins);
3128 VectorAdd(inmins, hull->clip_size, outmaxs);
3131 void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
3136 mempool_t *mainmempool;
3137 float dist, modelyawradius, modelradius, *vec;
3138 msurface_t *surface;
3139 int numshadowmeshtriangles;
3141 hullinfo_t hullinfo;
3143 mod->type = mod_brushq1;
3145 if (!memcmp (buffer, "MCBSPpad", 8))
3147 unsigned char *index;
3149 mod->brush.ismcbsp = true;
3150 mod->brush.ishlbsp = false;
3152 mod_base = (unsigned char*)buffer;
3156 i = SB_ReadInt (&index);
3157 if (i != MCBSPVERSION)
3158 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i)", mod->name, i, MCBSPVERSION);
3161 hullinfo.numhulls = LittleLong(*(int*)index); index += 4;
3162 hullinfo.filehulls = hullinfo.numhulls;
3163 VectorClear (hullinfo.hullsizes[0][0]);
3164 VectorClear (hullinfo.hullsizes[0][1]);
3165 for (i = 1; i < hullinfo.numhulls; i++)
3167 hullinfo.hullsizes[i][0][0] = SB_ReadFloat (&index);
3168 hullinfo.hullsizes[i][0][1] = SB_ReadFloat (&index);
3169 hullinfo.hullsizes[i][0][2] = SB_ReadFloat (&index);
3170 hullinfo.hullsizes[i][1][0] = SB_ReadFloat (&index);
3171 hullinfo.hullsizes[i][1][1] = SB_ReadFloat (&index);
3172 hullinfo.hullsizes[i][1][2] = SB_ReadFloat (&index);
3176 _header.version = 0;
3177 for (i = 0; i < HEADER_LUMPS; i++)
3179 _header.lumps[i].fileofs = SB_ReadInt (&index);
3180 _header.lumps[i].filelen = SB_ReadInt (&index);
3187 header = (dheader_t *)buffer;
3189 i = LittleLong(header->version);
3190 if (i != BSPVERSION && i != 30)
3191 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i(Quake) or 30(HalfLife)", mod->name, i, BSPVERSION);
3192 mod->brush.ishlbsp = i == 30;
3193 mod->brush.ismcbsp = false;
3195 // fill in hull info
3196 VectorClear (hullinfo.hullsizes[0][0]);
3197 VectorClear (hullinfo.hullsizes[0][1]);
3198 if (mod->brush.ishlbsp)
3200 hullinfo.numhulls = 4;
3201 hullinfo.filehulls = 4;
3202 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
3203 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
3204 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
3205 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
3206 VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
3207 VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
3211 hullinfo.numhulls = 3;
3212 hullinfo.filehulls = 4;
3213 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
3214 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
3215 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
3216 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
3220 mod_base = (unsigned char*)buffer;
3221 for (i = 0; i < HEADER_LUMPS; i++)
3223 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
3224 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
3228 mod->soundfromcenter = true;
3229 mod->TraceBox = Mod_Q1BSP_TraceBox;
3230 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3231 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3232 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
3233 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
3234 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
3235 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
3236 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
3237 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
3238 mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
3239 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
3240 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3241 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3242 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
3244 if (loadmodel->isworldmodel)
3246 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3247 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3252 // store which lightmap format to use
3253 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3255 mod->brush.qw_md4sum = 0;
3256 mod->brush.qw_md4sum2 = 0;
3257 for (i = 0;i < HEADER_LUMPS;i++)
3259 if (i == LUMP_ENTITIES)
3261 mod->brush.qw_md4sum ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3262 if (i == LUMP_VISIBILITY || i == LUMP_LEAFS || i == LUMP_NODES)
3264 mod->brush.qw_md4sum2 ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3267 Mod_Q1BSP_LoadEntities(&header->lumps[LUMP_ENTITIES]);
3268 Mod_Q1BSP_LoadVertexes(&header->lumps[LUMP_VERTEXES]);
3269 Mod_Q1BSP_LoadEdges(&header->lumps[LUMP_EDGES]);
3270 Mod_Q1BSP_LoadSurfedges(&header->lumps[LUMP_SURFEDGES]);
3271 Mod_Q1BSP_LoadTextures(&header->lumps[LUMP_TEXTURES]);
3272 Mod_Q1BSP_LoadLighting(&header->lumps[LUMP_LIGHTING]);
3273 Mod_Q1BSP_LoadPlanes(&header->lumps[LUMP_PLANES]);
3274 Mod_Q1BSP_LoadTexinfo(&header->lumps[LUMP_TEXINFO]);
3275 Mod_Q1BSP_LoadFaces(&header->lumps[LUMP_FACES]);
3276 Mod_Q1BSP_LoadLeaffaces(&header->lumps[LUMP_MARKSURFACES]);
3277 Mod_Q1BSP_LoadVisibility(&header->lumps[LUMP_VISIBILITY]);
3278 // load submodels before leafs because they contain the number of vis leafs
3279 Mod_Q1BSP_LoadSubmodels(&header->lumps[LUMP_MODELS], &hullinfo);
3280 Mod_Q1BSP_LoadLeafs(&header->lumps[LUMP_LEAFS]);
3281 Mod_Q1BSP_LoadNodes(&header->lumps[LUMP_NODES]);
3282 Mod_Q1BSP_LoadClipnodes(&header->lumps[LUMP_CLIPNODES], &hullinfo);
3284 if (!mod->brushq1.lightdata)
3285 mod->brush.LightPoint = NULL;
3287 if (mod->brushq1.data_compressedpvs)
3288 Mem_Free(mod->brushq1.data_compressedpvs);
3289 mod->brushq1.data_compressedpvs = NULL;
3290 mod->brushq1.num_compressedpvs = 0;
3292 Mod_Q1BSP_MakeHull0();
3293 Mod_Q1BSP_MakePortals();
3295 mod->numframes = 2; // regular and alternate animation
3298 mainmempool = mod->mempool;
3300 // make a single combined shadow mesh to allow optimized shadow volume creation
3301 numshadowmeshtriangles = 0;
3302 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3304 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
3305 numshadowmeshtriangles += surface->num_triangles;
3307 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
3308 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3309 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));
3310 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
3311 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
3313 if (loadmodel->brush.numsubmodels)
3314 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
3316 if (loadmodel->isworldmodel)
3318 // clear out any stale submodels or worldmodels lying around
3319 // if we did this clear before now, an error might abort loading and
3320 // leave things in a bad state
3321 Mod_RemoveStaleWorldModels(loadmodel);
3324 // LordHavoc: to clear the fog around the original quake submodel code, I
3326 // first of all, some background info on the submodels:
3327 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
3328 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
3329 // now the weird for loop itself:
3330 // the loop functions in an odd way, on each iteration it sets up the
3331 // current 'mod' model (which despite the confusing code IS the model of
3332 // the number i), at the end of the loop it duplicates the model to become
3333 // the next submodel, and loops back to set up the new submodel.
3335 // LordHavoc: now the explanation of my sane way (which works identically):
3336 // set up the world model, then on each submodel copy from the world model
3337 // and set up the submodel with the respective model info.
3338 for (i = 0;i < mod->brush.numsubmodels;i++)
3340 // LordHavoc: this code was originally at the end of this loop, but
3341 // has been transformed to something more readable at the start here.
3346 // LordHavoc: only register submodels if it is the world
3347 // (prevents external bsp models from replacing world submodels with
3349 if (!loadmodel->isworldmodel)
3351 // duplicate the basic information
3352 sprintf(name, "*%i", i);
3353 mod = Mod_FindName(name);
3354 // copy the base model to this one
3356 // rename the clone back to its proper name
3357 strlcpy(mod->name, name, sizeof(mod->name));
3358 // textures and memory belong to the main model
3359 mod->texturepool = NULL;
3360 mod->mempool = NULL;
3363 mod->brush.submodel = i;
3365 if (loadmodel->brush.submodels)
3366 loadmodel->brush.submodels[i] = mod;
3368 bm = &mod->brushq1.submodels[i];
3370 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
3371 for (j=1 ; j<MAX_MAP_HULLS ; j++)
3373 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
3374 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
3377 mod->firstmodelsurface = bm->firstface;
3378 mod->nummodelsurfaces = bm->numfaces;
3380 // make the model surface list (used by shadowing/lighting)
3381 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
3382 for (j = 0;j < mod->nummodelsurfaces;j++)
3383 mod->surfacelist[j] = mod->firstmodelsurface + j;
3385 // this gets altered below if sky is used
3386 mod->DrawSky = NULL;
3387 mod->Draw = R_Q1BSP_Draw;
3388 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
3389 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
3390 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
3391 mod->DrawLight = R_Q1BSP_DrawLight;
3394 mod->brush.GetPVS = NULL;
3395 mod->brush.FatPVS = NULL;
3396 mod->brush.BoxTouchingPVS = NULL;
3397 mod->brush.BoxTouchingLeafPVS = NULL;
3398 mod->brush.BoxTouchingVisibleLeafs = NULL;
3399 mod->brush.FindBoxClusters = NULL;
3400 mod->brush.LightPoint = NULL;
3401 mod->brush.AmbientSoundLevelsForPoint = NULL;
3403 Mod_Q1BSP_BuildLightmapUpdateChains(loadmodel->mempool, mod);
3404 if (mod->nummodelsurfaces)
3406 // LordHavoc: calculate bmodel bounding box rather than trusting what it says
3407 mod->normalmins[0] = mod->normalmins[1] = mod->normalmins[2] = 1000000000.0f;
3408 mod->normalmaxs[0] = mod->normalmaxs[1] = mod->normalmaxs[2] = -1000000000.0f;
3411 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
3413 // we only need to have a drawsky function if it is used(usually only on world model)
3414 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
3415 mod->DrawSky = R_Q1BSP_DrawSky;
3416 // calculate bounding shapes
3417 for (k = 0, vec = (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex);k < surface->num_vertices;k++, vec += 3)
3419 if (mod->normalmins[0] > vec[0]) mod->normalmins[0] = vec[0];
3420 if (mod->normalmins[1] > vec[1]) mod->normalmins[1] = vec[1];
3421 if (mod->normalmins[2] > vec[2]) mod->normalmins[2] = vec[2];
3422 if (mod->normalmaxs[0] < vec[0]) mod->normalmaxs[0] = vec[0];
3423 if (mod->normalmaxs[1] < vec[1]) mod->normalmaxs[1] = vec[1];
3424 if (mod->normalmaxs[2] < vec[2]) mod->normalmaxs[2] = vec[2];
3425 dist = vec[0]*vec[0]+vec[1]*vec[1];
3426 if (modelyawradius < dist)
3427 modelyawradius = dist;
3428 dist += vec[2]*vec[2];
3429 if (modelradius < dist)
3433 modelyawradius = sqrt(modelyawradius);
3434 modelradius = sqrt(modelradius);
3435 mod->yawmins[0] = mod->yawmins[1] = - (mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius);
3436 mod->yawmins[2] = mod->normalmins[2];
3437 mod->yawmaxs[2] = mod->normalmaxs[2];
3438 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
3439 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
3440 mod->radius = modelradius;
3441 mod->radius2 = modelradius * modelradius;
3445 // LordHavoc: empty submodel(lacrima.bsp has such a glitch)
3446 Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
3448 //mod->brushq1.num_visleafs = bm->visleafs;
3451 Mod_Q1BSP_LoadMapBrushes();
3453 //Mod_Q1BSP_ProcessLightList();
3455 if (developer.integer >= 10)
3456 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);
3459 static void Mod_Q2BSP_LoadEntities(lump_t *l)
3463 static void Mod_Q2BSP_LoadPlanes(lump_t *l)
3470 in = (void *)(mod_base + l->fileofs);
3471 if (l->filelen % sizeof(*in))
3472 Host_Error("Mod_Q2BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
3473 count = l->filelen / sizeof(*in);
3474 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3477 loadmodel->num = count;
3479 for (i = 0;i < count;i++, in++, out++)
3485 static void Mod_Q2BSP_LoadVertices(lump_t *l)
3492 in = (void *)(mod_base + l->fileofs);
3493 if (l->filelen % sizeof(*in))
3494 Host_Error("Mod_Q2BSP_LoadVertices: funny lump size in %s",loadmodel->name);
3495 count = l->filelen / sizeof(*in);
3496 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3499 loadmodel->num = count;
3501 for (i = 0;i < count;i++, in++, out++)
3507 static void Mod_Q2BSP_LoadVisibility(lump_t *l)
3514 in = (void *)(mod_base + l->fileofs);
3515 if (l->filelen % sizeof(*in))
3516 Host_Error("Mod_Q2BSP_LoadVisibility: funny lump size in %s",loadmodel->name);
3517 count = l->filelen / sizeof(*in);
3518 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3521 loadmodel->num = count;
3523 for (i = 0;i < count;i++, in++, out++)
3529 static void Mod_Q2BSP_LoadNodes(lump_t *l)
3536 in = (void *)(mod_base + l->fileofs);
3537 if (l->filelen % sizeof(*in))
3538 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
3539 count = l->filelen / sizeof(*in);
3540 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3543 loadmodel->num = count;
3545 for (i = 0;i < count;i++, in++, out++)
3551 static void Mod_Q2BSP_LoadTexInfo(lump_t *l)
3558 in = (void *)(mod_base + l->fileofs);
3559 if (l->filelen % sizeof(*in))
3560 Host_Error("Mod_Q2BSP_LoadTexInfo: funny lump size in %s",loadmodel->name);
3561 count = l->filelen / sizeof(*in);
3562 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3565 loadmodel->num = count;
3567 for (i = 0;i < count;i++, in++, out++)
3573 static void Mod_Q2BSP_LoadFaces(lump_t *l)
3580 in = (void *)(mod_base + l->fileofs);
3581 if (l->filelen % sizeof(*in))
3582 Host_Error("Mod_Q2BSP_LoadFaces: funny lump size in %s",loadmodel->name);
3583 count = l->filelen / sizeof(*in);
3584 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3587 loadmodel->num = count;
3589 for (i = 0;i < count;i++, in++, out++)
3595 static void Mod_Q2BSP_LoadLighting(lump_t *l)
3602 in = (void *)(mod_base + l->fileofs);
3603 if (l->filelen % sizeof(*in))
3604 Host_Error("Mod_Q2BSP_LoadLighting: funny lump size in %s",loadmodel->name);
3605 count = l->filelen / sizeof(*in);
3606 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3609 loadmodel->num = count;
3611 for (i = 0;i < count;i++, in++, out++)
3617 static void Mod_Q2BSP_LoadLeafs(lump_t *l)
3624 in = (void *)(mod_base + l->fileofs);
3625 if (l->filelen % sizeof(*in))
3626 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
3627 count = l->filelen / sizeof(*in);
3628 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3631 loadmodel->num = count;
3633 for (i = 0;i < count;i++, in++, out++)
3639 static void Mod_Q2BSP_LoadLeafFaces(lump_t *l)
3646 in = (void *)(mod_base + l->fileofs);
3647 if (l->filelen % sizeof(*in))
3648 Host_Error("Mod_Q2BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
3649 count = l->filelen / sizeof(*in);
3650 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3653 loadmodel->num = count;
3655 for (i = 0;i < count;i++, in++, out++)
3661 static void Mod_Q2BSP_LoadLeafBrushes(lump_t *l)
3668 in = (void *)(mod_base + l->fileofs);
3669 if (l->filelen % sizeof(*in))
3670 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
3671 count = l->filelen / sizeof(*in);
3672 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3675 loadmodel->num = count;
3677 for (i = 0;i < count;i++, in++, out++)
3683 static void Mod_Q2BSP_LoadEdges(lump_t *l)
3690 in = (void *)(mod_base + l->fileofs);
3691 if (l->filelen % sizeof(*in))
3692 Host_Error("Mod_Q2BSP_LoadEdges: funny lump size in %s",loadmodel->name);
3693 count = l->filelen / sizeof(*in);
3694 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3697 loadmodel->num = count;
3699 for (i = 0;i < count;i++, in++, out++)
3705 static void Mod_Q2BSP_LoadSurfEdges(lump_t *l)
3712 in = (void *)(mod_base + l->fileofs);
3713 if (l->filelen % sizeof(*in))
3714 Host_Error("Mod_Q2BSP_LoadSurfEdges: funny lump size in %s",loadmodel->name);
3715 count = l->filelen / sizeof(*in);
3716 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3719 loadmodel->num = count;
3721 for (i = 0;i < count;i++, in++, out++)
3727 static void Mod_Q2BSP_LoadBrushes(lump_t *l)
3734 in = (void *)(mod_base + l->fileofs);
3735 if (l->filelen % sizeof(*in))
3736 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
3737 count = l->filelen / sizeof(*in);
3738 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3741 loadmodel->num = count;
3743 for (i = 0;i < count;i++, in++, out++)
3749 static void Mod_Q2BSP_LoadBrushSides(lump_t *l)
3756 in = (void *)(mod_base + l->fileofs);
3757 if (l->filelen % sizeof(*in))
3758 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
3759 count = l->filelen / sizeof(*in);
3760 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3763 loadmodel->num = count;
3765 for (i = 0;i < count;i++, in++, out++)
3771 static void Mod_Q2BSP_LoadAreas(lump_t *l)
3778 in = (void *)(mod_base + l->fileofs);
3779 if (l->filelen % sizeof(*in))
3780 Host_Error("Mod_Q2BSP_LoadAreas: funny lump size in %s",loadmodel->name);
3781 count = l->filelen / sizeof(*in);
3782 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3785 loadmodel->num = count;
3787 for (i = 0;i < count;i++, in++, out++)
3793 static void Mod_Q2BSP_LoadAreaPortals(lump_t *l)
3800 in = (void *)(mod_base + l->fileofs);
3801 if (l->filelen % sizeof(*in))
3802 Host_Error("Mod_Q2BSP_LoadAreaPortals: funny lump size in %s",loadmodel->name);
3803 count = l->filelen / sizeof(*in);
3804 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3807 loadmodel->num = count;
3809 for (i = 0;i < count;i++, in++, out++)
3815 static void Mod_Q2BSP_LoadModels(lump_t *l)
3822 in = (void *)(mod_base + l->fileofs);
3823 if (l->filelen % sizeof(*in))
3824 Host_Error("Mod_Q2BSP_LoadModels: funny lump size in %s",loadmodel->name);
3825 count = l->filelen / sizeof(*in);
3826 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3829 loadmodel->num = count;
3831 for (i = 0;i < count;i++, in++, out++)
3837 void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
3840 q2dheader_t *header;
3842 Host_Error("Mod_Q2BSP_Load: not yet implemented");
3844 mod->type = mod_brushq2;
3846 header = (q2dheader_t *)buffer;
3848 i = LittleLong(header->version);
3849 if (i != Q2BSPVERSION)
3850 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
3851 mod->brush.ishlbsp = false;
3852 mod->brush.ismcbsp = false;
3853 if (loadmodel->isworldmodel)
3855 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3856 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3859 mod_base = (unsigned char *)header;
3861 // swap all the lumps
3862 for (i = 0;i < (int) sizeof(*header) / 4;i++)
3863 ((int *)header)[i] = LittleLong(((int *)header)[i]);
3865 // store which lightmap format to use
3866 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3868 mod->brush.qw_md4sum = 0;
3869 mod->brush.qw_md4sum2 = 0;
3870 for (i = 0;i < Q2HEADER_LUMPS;i++)
3872 if (i == Q2LUMP_ENTITIES)
3874 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
3875 if (i == Q2LUMP_VISIBILITY || i == Q2LUMP_LEAFS || i == Q2LUMP_NODES)
3877 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
3880 Mod_Q2BSP_LoadEntities(&header->lumps[Q2LUMP_ENTITIES]);
3881 Mod_Q2BSP_LoadPlanes(&header->lumps[Q2LUMP_PLANES]);
3882 Mod_Q2BSP_LoadVertices(&header->lumps[Q2LUMP_VERTEXES]);
3883 Mod_Q2BSP_LoadVisibility(&header->lumps[Q2LUMP_VISIBILITY]);
3884 Mod_Q2BSP_LoadNodes(&header->lumps[Q2LUMP_NODES]);
3885 Mod_Q2BSP_LoadTexInfo(&header->lumps[Q2LUMP_TEXINFO]);
3886 Mod_Q2BSP_LoadFaces(&header->lumps[Q2LUMP_FACES]);
3887 Mod_Q2BSP_LoadLighting(&header->lumps[Q2LUMP_LIGHTING]);
3888 Mod_Q2BSP_LoadLeafs(&header->lumps[Q2LUMP_LEAFS]);
3889 Mod_Q2BSP_LoadLeafFaces(&header->lumps[Q2LUMP_LEAFFACES]);
3890 Mod_Q2BSP_LoadLeafBrushes(&header->lumps[Q2LUMP_LEAFBRUSHES]);
3891 Mod_Q2BSP_LoadEdges(&header->lumps[Q2LUMP_EDGES]);
3892 Mod_Q2BSP_LoadSurfEdges(&header->lumps[Q2LUMP_SURFEDGES]);
3893 Mod_Q2BSP_LoadBrushes(&header->lumps[Q2LUMP_BRUSHES]);
3894 Mod_Q2BSP_LoadBrushSides(&header->lumps[Q2LUMP_BRUSHSIDES]);
3895 Mod_Q2BSP_LoadAreas(&header->lumps[Q2LUMP_AREAS]);
3896 Mod_Q2BSP_LoadAreaPortals(&header->lumps[Q2LUMP_AREAPORTALS]);
3897 // LordHavoc: must go last because this makes the submodels
3898 Mod_Q2BSP_LoadModels(&header->lumps[Q2LUMP_MODELS]);
3901 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents);
3902 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents);
3904 static void Mod_Q3BSP_LoadEntities(lump_t *l)
3907 char key[128], value[MAX_INPUTLINE];
3909 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
3910 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
3911 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
3914 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
3915 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
3916 data = loadmodel->brush.entities;
3917 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
3918 if (data && COM_ParseTokenConsole(&data) && com_token[0] == '{')
3922 if (!COM_ParseTokenConsole(&data))
3924 if (com_token[0] == '}')
3925 break; // end of worldspawn
3926 if (com_token[0] == '_')
3927 strlcpy(key, com_token + 1, sizeof(key));
3929 strlcpy(key, com_token, sizeof(key));
3930 while (key[strlen(key)-1] == ' ') // remove trailing spaces
3931 key[strlen(key)-1] = 0;
3932 if (!COM_ParseTokenConsole(&data))
3934 strlcpy(value, com_token, sizeof(value));
3935 if (!strcmp("gridsize", key))
3937 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
3938 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
3944 // FIXME: make MAXSHADERS dynamic
3945 #define Q3SHADER_MAXSHADERS 4096
3946 #define Q3SHADER_MAXLAYERS 8
3948 typedef struct q3shaderinfo_layer_s
3954 char texturename[TEXTURE_MAXFRAMES][Q3PATHLENGTH];
3956 qboolean rgbgenvertex;
3957 qboolean alphagenvertex;
3959 q3shaderinfo_layer_t;
3961 typedef struct q3shaderinfo_s
3963 char name[Q3PATHLENGTH];
3968 qboolean vertexalpha;
3969 qboolean textureblendalpha;
3970 q3shaderinfo_layer_t *primarylayer, *backgroundlayer;
3971 q3shaderinfo_layer_t layers[Q3SHADER_MAXLAYERS];
3972 char skyboxname[Q3PATHLENGTH];
3976 int q3shaders_numshaders;
3977 q3shaderinfo_t q3shaders_shaders[Q3SHADER_MAXSHADERS];
3979 static void Mod_Q3BSP_LoadShaders(void)
3986 q3shaderinfo_t *shader;
3987 q3shaderinfo_layer_t *layer;
3989 char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
3990 search = FS_Search("scripts/*.shader", true, false);
3993 q3shaders_numshaders = 0;
3994 for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
3996 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
3999 while (COM_ParseToken(&text, false))
4001 if (q3shaders_numshaders >= Q3SHADER_MAXSHADERS)
4003 Con_Printf("Mod_Q3BSP_LoadShaders: too many shaders!\n");
4006 shader = q3shaders_shaders + q3shaders_numshaders++;
4007 memset(shader, 0, sizeof(*shader));
4008 strlcpy(shader->name, com_token, sizeof(shader->name));
4009 if (!COM_ParseToken(&text, false) || strcasecmp(com_token, "{"))
4011 Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
4014 while (COM_ParseToken(&text, false))
4016 if (!strcasecmp(com_token, "}"))
4018 if (!strcasecmp(com_token, "{"))
4020 if (shader->numlayers < Q3SHADER_MAXLAYERS)
4022 layer = shader->layers + shader->numlayers++;
4023 layer->rgbgenvertex = false;
4024 layer->alphagenvertex = false;
4025 layer->blendfunc[0] = GL_ONE;
4026 layer->blendfunc[1] = GL_ZERO;
4030 while (COM_ParseToken(&text, false))
4032 if (!strcasecmp(com_token, "}"))
4034 if (!strcasecmp(com_token, "\n"))
4039 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
4041 if (j < TEXTURE_MAXFRAMES + 4)
4043 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
4044 numparameters = j + 1;
4046 if (!COM_ParseToken(&text, true))
4049 if (developer.integer >= 100)
4051 Con_Printf("%s %i: ", shader->name, shader->numlayers - 1);
4052 for (j = 0;j < numparameters;j++)
4053 Con_Printf(" %s", parameter[j]);
4056 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
4058 if (numparameters == 2)
4060 if (!strcasecmp(parameter[1], "add"))
4062 layer->blendfunc[0] = GL_ONE;
4063 layer->blendfunc[1] = GL_ONE;
4065 else if (!strcasecmp(parameter[1], "filter"))
4067 layer->blendfunc[0] = GL_DST_COLOR;
4068 layer->blendfunc[1] = GL_ZERO;
4070 else if (!strcasecmp(parameter[1], "blend"))
4072 layer->blendfunc[0] = GL_SRC_ALPHA;
4073 layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
4076 else if (numparameters == 3)
4079 for (k = 0;k < 2;k++)
4081 if (!strcasecmp(parameter[k+1], "GL_ONE"))
4082 layer->blendfunc[k] = GL_ONE;
4083 else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
4084 layer->blendfunc[k] = GL_ZERO;
4085 else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
4086 layer->blendfunc[k] = GL_SRC_COLOR;
4087 else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
4088 layer->blendfunc[k] = GL_SRC_ALPHA;
4089 else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
4090 layer->blendfunc[k] = GL_DST_COLOR;
4091 else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
4092 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
4093 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
4094 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
4095 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
4096 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
4097 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
4098 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
4099 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
4100 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
4102 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
4106 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
4107 layer->alphatest = true;
4108 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
4110 if (!strcasecmp(parameter[0], "clampmap"))
4111 layer->clampmap = true;
4112 layer->numframes = 1;
4113 layer->framerate = 1;
4114 strlcpy(layer->texturename[0], parameter[1], sizeof(layer->texturename));
4115 if (!strcasecmp(parameter[1], "$lightmap"))
4116 shader->lighting = true;
4118 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
4121 layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
4122 layer->framerate = atoi(parameter[1]);
4123 for (i = 0;i < layer->numframes;i++)
4124 strlcpy(layer->texturename[i], parameter[i + 2], sizeof(layer->texturename));
4126 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen") && !strcasecmp(parameter[1], "vertex"))
4127 layer->rgbgenvertex = true;
4128 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen") && !strcasecmp(parameter[1], "vertex"))
4129 layer->alphagenvertex = true;
4130 // break out a level if it was }
4131 if (!strcasecmp(com_token, "}"))
4134 if (layer->rgbgenvertex)
4135 shader->lighting = true;
4136 if (layer->alphagenvertex)
4138 if (layer == shader->layers + 0)
4140 // vertex controlled transparency
4141 shader->vertexalpha = true;
4145 // multilayer terrain shader or similar
4146 shader->textureblendalpha = true;
4152 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
4154 if (j < TEXTURE_MAXFRAMES + 4)
4156 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
4157 numparameters = j + 1;
4159 if (!COM_ParseToken(&text, true))
4162 if (fileindex == 0 && !strcasecmp(com_token, "}"))
4164 if (developer.integer >= 100)
4166 Con_Printf("%s: ", shader->name);
4167 for (j = 0;j < numparameters;j++)
4168 Con_Printf(" %s", parameter[j]);
4171 if (numparameters < 1)
4173 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
4175 if (!strcasecmp(parameter[1], "alphashadow"))
4176 shader->surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
4177 else if (!strcasecmp(parameter[1], "areaportal"))
4178 shader->surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
4179 else if (!strcasecmp(parameter[1], "botclip"))
4180 shader->surfaceparms |= Q3SURFACEPARM_BOTCLIP;
4181 else if (!strcasecmp(parameter[1], "clusterportal"))
4182 shader->surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
4183 else if (!strcasecmp(parameter[1], "detail"))
4184 shader->surfaceparms |= Q3SURFACEPARM_DETAIL;
4185 else if (!strcasecmp(parameter[1], "donotenter"))
4186 shader->surfaceparms |= Q3SURFACEPARM_DONOTENTER;
4187 else if (!strcasecmp(parameter[1], "dust"))
4188 shader->surfaceparms |= Q3SURFACEPARM_DUST;
4189 else if (!strcasecmp(parameter[1], "hint"))
4190 shader->surfaceparms |= Q3SURFACEPARM_HINT;
4191 else if (!strcasecmp(parameter[1], "fog"))
4192 shader->surfaceparms |= Q3SURFACEPARM_FOG;
4193 else if (!strcasecmp(parameter[1], "lava"))
4194 shader->surfaceparms |= Q3SURFACEPARM_LAVA;
4195 else if (!strcasecmp(parameter[1], "lightfilter"))
4196 shader->surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
4197 else if (!strcasecmp(parameter[1], "lightgrid"))
4198 shader->surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
4199 else if (!strcasecmp(parameter[1], "metalsteps"))
4200 shader->surfaceparms |= Q3SURFACEPARM_METALSTEPS;
4201 else if (!strcasecmp(parameter[1], "nodamage"))
4202 shader->surfaceparms |= Q3SURFACEPARM_NODAMAGE;
4203 else if (!strcasecmp(parameter[1], "nodlight"))
4204 shader->surfaceparms |= Q3SURFACEPARM_NODLIGHT;
4205 else if (!strcasecmp(parameter[1], "nodraw"))
4206 shader->surfaceparms |= Q3SURFACEPARM_NODRAW;
4207 else if (!strcasecmp(parameter[1], "nodrop"))
4208 shader->surfaceparms |= Q3SURFACEPARM_NODROP;
4209 else if (!strcasecmp(parameter[1], "noimpact"))
4210 shader->surfaceparms |= Q3SURFACEPARM_NOIMPACT;
4211 else if (!strcasecmp(parameter[1], "nolightmap"))
4212 shader->surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
4213 else if (!strcasecmp(parameter[1], "nomarks"))
4214 shader->surfaceparms |= Q3SURFACEPARM_NOMARKS;
4215 else if (!strcasecmp(parameter[1], "nomipmaps"))
4216 shader->surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
4217 else if (!strcasecmp(parameter[1], "nonsolid"))
4218 shader->surfaceparms |= Q3SURFACEPARM_NONSOLID;
4219 else if (!strcasecmp(parameter[1], "origin"))
4220 shader->surfaceparms |= Q3SURFACEPARM_ORIGIN;
4221 else if (!strcasecmp(parameter[1], "playerclip"))
4222 shader->surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
4223 else if (!strcasecmp(parameter[1], "sky"))
4224 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4225 else if (!strcasecmp(parameter[1], "slick"))
4226 shader->surfaceparms |= Q3SURFACEPARM_SLICK;
4227 else if (!strcasecmp(parameter[1], "slime"))
4228 shader->surfaceparms |= Q3SURFACEPARM_SLIME;
4229 else if (!strcasecmp(parameter[1], "structural"))
4230 shader->surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
4231 else if (!strcasecmp(parameter[1], "trans"))
4232 shader->surfaceparms |= Q3SURFACEPARM_TRANS;
4233 else if (!strcasecmp(parameter[1], "water"))
4234 shader->surfaceparms |= Q3SURFACEPARM_WATER;
4235 else if (!strcasecmp(parameter[1], "pointlight"))
4236 shader->surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
4238 Con_Printf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
4240 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
4242 // some q3 skies don't have the sky parm set
4243 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4244 strlcpy(shader->skyboxname, parameter[1], sizeof(shader->skyboxname));
4246 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
4248 // some q3 skies don't have the sky parm set
4249 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4250 if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
4251 strlcpy(shader->skyboxname, parameter[1], sizeof(shader->skyboxname));
4253 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
4255 if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
4256 shader->textureflags |= Q3TEXTUREFLAG_TWOSIDED;
4258 else if (!strcasecmp(parameter[0], "nomipmaps"))
4259 shader->surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
4260 else if (!strcasecmp(parameter[0], "nopicmip"))
4261 shader->textureflags |= Q3TEXTUREFLAG_NOPICMIP;
4262 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
4264 if (!strcasecmp(parameter[1], "autosprite") && numparameters == 2)
4265 shader->textureflags |= Q3TEXTUREFLAG_AUTOSPRITE;
4266 if (!strcasecmp(parameter[1], "autosprite2") && numparameters == 2)
4267 shader->textureflags |= Q3TEXTUREFLAG_AUTOSPRITE2;
4270 // identify if this is a blended terrain shader or similar
4271 if (shader->numlayers)
4273 shader->primarylayer = shader->layers + 0;
4274 if ((shader->layers[1].blendfunc[0] == GL_SRC_ALPHA && shader->layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA) || shader->layers[1].alphatest)
4276 // terrain blending or other effects
4277 shader->backgroundlayer = shader->layers + 0;
4278 shader->primarylayer = shader->layers + 1;
4280 // now see if the lightmap came first, and if so choose the second texture instead
4281 if (!strcasecmp(shader->primarylayer->texturename[0], "$lightmap"))
4282 shader->primarylayer = shader->layers + 1;
4289 q3shaderinfo_t *Mod_Q3BSP_LookupShader(const char *name)
4292 for (i = 0;i < Q3SHADER_MAXSHADERS;i++)
4293 if (!strcasecmp(q3shaders_shaders[i].name, name))
4294 return q3shaders_shaders + i;
4298 static void Mod_Q3BSP_LoadTextures(lump_t *l)
4304 in = (q3dtexture_t *)(mod_base + l->fileofs);
4305 if (l->filelen % sizeof(*in))
4306 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
4307 count = l->filelen / sizeof(*in);
4308 out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4310 loadmodel->data_textures = out;
4311 loadmodel->num_textures = count;
4313 // parse the Q3 shader files
4314 Mod_Q3BSP_LoadShaders();
4317 for (i = 0;i < count;i++, in++, out++)
4319 q3shaderinfo_t *shader;
4320 strlcpy (out->name, in->name, sizeof (out->name));
4321 out->surfaceflags = LittleLong(in->surfaceflags);
4322 out->supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in->contents));
4323 shader = Mod_Q3BSP_LookupShader(out->name);
4326 out->surfaceparms = shader->surfaceparms;
4327 out->textureflags = shader->textureflags;
4328 out->basematerialflags = 0;
4329 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
4331 out->basematerialflags |= MATERIALFLAG_SKY;
4332 if (shader->skyboxname[0])
4334 // quake3 seems to append a _ to the skybox name, so this must do so as well
4335 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
4338 else if ((out->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
4339 out->basematerialflags |= MATERIALFLAG_NODRAW;
4340 else if (shader->surfaceparms & Q3SURFACEPARM_LAVA)
4341 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_FULLBRIGHT;
4342 else if (shader->surfaceparms & Q3SURFACEPARM_SLIME)
4343 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_WATERALPHA;
4344 else if (shader->surfaceparms & Q3SURFACEPARM_WATER)
4345 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_WATERALPHA;
4347 out->basematerialflags |= MATERIALFLAG_WALL;
4348 if (shader->layers[0].alphatest)
4349 out->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_TRANSPARENT;
4350 out->customblendfunc[0] = GL_ONE;
4351 out->customblendfunc[1] = GL_ZERO;
4352 if (shader->numlayers > 0)
4354 out->customblendfunc[0] = shader->layers[0].blendfunc[0];
4355 out->customblendfunc[1] = shader->layers[0].blendfunc[1];
4357 Q3 shader blendfuncs actually used in the game (* = supported by DP)
4358 * additive GL_ONE GL_ONE
4359 additive weird GL_ONE GL_SRC_ALPHA
4360 additive weird 2 GL_ONE GL_ONE_MINUS_SRC_ALPHA
4361 * alpha GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
4362 alpha inverse GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
4363 brighten GL_DST_COLOR GL_ONE
4364 brighten GL_ONE GL_SRC_COLOR
4365 brighten weird GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
4366 brighten weird 2 GL_DST_COLOR GL_SRC_ALPHA
4367 * modulate GL_DST_COLOR GL_ZERO
4368 * modulate GL_ZERO GL_SRC_COLOR
4369 modulate inverse GL_ZERO GL_ONE_MINUS_SRC_COLOR
4370 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
4371 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
4372 * modulate x2 GL_DST_COLOR GL_SRC_COLOR
4373 * no blend GL_ONE GL_ZERO
4374 nothing GL_ZERO GL_ONE
4376 // if not opaque, figure out what blendfunc to use
4377 if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
4379 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
4380 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT;
4381 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
4382 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT;
4383 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
4384 out->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT;
4386 out->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT;
4389 if (!shader->lighting)
4390 out->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
4391 if (shader->primarylayer && cls.state != ca_dedicated)
4394 out->numskinframes = shader->primarylayer->numframes;
4395 out->skinframerate = shader->primarylayer->framerate;
4396 for (j = 0;j < shader->primarylayer->numframes;j++)
4397 if (!Mod_LoadSkinFrame(&out->skinframes[j], shader->primarylayer->texturename[j], ((shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | (shader->textureflags & Q3TEXTUREFLAG_NOPICMIP ? 0 : TEXF_PICMIP) | (shader->primarylayer->clampmap ? TEXF_CLAMP : 0), false, true))
4398 Con_Printf("%s: could not load texture \"%s\" (frame %i) for shader \"%s\"\n", loadmodel->name, shader->primarylayer->texturename[j], j, out->name);
4400 if (shader->backgroundlayer && cls.state != ca_dedicated)
4403 out->backgroundnumskinframes = shader->backgroundlayer->numframes;
4404 out->backgroundskinframerate = shader->backgroundlayer->framerate;
4405 for (j = 0;j < shader->backgroundlayer->numframes;j++)
4406 if (!Mod_LoadSkinFrame(&out->backgroundskinframes[j], shader->backgroundlayer->texturename[j], ((shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | (shader->textureflags & Q3TEXTUREFLAG_NOPICMIP ? 0 : TEXF_PICMIP) | (shader->backgroundlayer->clampmap ? TEXF_CLAMP : 0), false, true))
4407 Con_Printf("%s: could not load texture \"%s\" (frame %i) for shader \"%s\"\n", loadmodel->name, shader->backgroundlayer->texturename[j], j, out->name);
4413 Con_DPrintf("%s: No shader found for texture \"%s\"\n", loadmodel->name, out->name);
4414 out->surfaceparms = 0;
4415 if (out->surfaceflags & Q3SURFACEFLAG_NODRAW)
4416 out->basematerialflags |= MATERIALFLAG_NODRAW;
4417 else if (out->surfaceflags & Q3SURFACEFLAG_SKY)
4418 out->basematerialflags |= MATERIALFLAG_SKY;
4420 out->basematerialflags |= MATERIALFLAG_WALL;
4421 // these are defaults
4422 //if (!strncmp(out->name, "textures/skies/", 15))
4423 // out->surfaceparms |= Q3SURFACEPARM_SKY;
4424 //if (!strcmp(out->name, "caulk") || !strcmp(out->name, "common/caulk") || !strcmp(out->name, "textures/common/caulk")
4425 // || !strcmp(out->name, "nodraw") || !strcmp(out->name, "common/nodraw") || !strcmp(out->name, "textures/common/nodraw"))
4426 // out->surfaceparms |= Q3SURFACEPARM_NODRAW;
4427 //if (R_TextureHasAlpha(out->skinframes[0].base))
4428 // out->surfaceparms |= Q3SURFACEPARM_TRANS;
4429 if (cls.state != ca_dedicated)
4430 if (!Mod_LoadSkinFrame(&out->skinframes[0], out->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, true))
4431 Con_Printf("%s: could not load texture for missing shader \"%s\"\n", loadmodel->name, out->name);
4433 // init the animation variables
4434 out->currentframe = out;
4435 out->currentskinframe = &out->skinframes[0];
4436 out->backgroundcurrentskinframe = &out->backgroundskinframes[0];
4439 Con_DPrintf("%s: %i textures missing shaders\n", loadmodel->name, c);
4442 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
4448 in = (q3dplane_t *)(mod_base + l->fileofs);
4449 if (l->filelen % sizeof(*in))
4450 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
4451 count = l->filelen / sizeof(*in);
4452 out = (mplane_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4454 loadmodel->brush.data_planes = out;
4455 loadmodel->brush.num_planes = count;
4457 for (i = 0;i < count;i++, in++, out++)
4459 out->normal[0] = LittleFloat(in->normal[0]);
4460 out->normal[1] = LittleFloat(in->normal[1]);
4461 out->normal[2] = LittleFloat(in->normal[2]);
4462 out->dist = LittleFloat(in->dist);
4467 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
4470 q3mbrushside_t *out;
4473 in = (q3dbrushside_t *)(mod_base + l->fileofs);
4474 if (l->filelen % sizeof(*in))
4475 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4476 count = l->filelen / sizeof(*in);
4477 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4479 loadmodel->brush.data_brushsides = out;
4480 loadmodel->brush.num_brushsides = count;
4482 for (i = 0;i < count;i++, in++, out++)
4484 n = LittleLong(in->planeindex);
4485 if (n < 0 || n >= loadmodel->brush.num_planes)
4486 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
4487 out->plane = loadmodel->brush.data_planes + n;
4488 n = LittleLong(in->textureindex);
4489 if (n < 0 || n >= loadmodel->num_textures)
4490 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4491 out->texture = loadmodel->data_textures + n;
4495 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
4499 int i, j, n, c, count, maxplanes;
4500 colplanef_t *planes;
4502 in = (q3dbrush_t *)(mod_base + l->fileofs);
4503 if (l->filelen % sizeof(*in))
4504 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4505 count = l->filelen / sizeof(*in);
4506 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4508 loadmodel->brush.data_brushes = out;
4509 loadmodel->brush.num_brushes = count;
4514 for (i = 0;i < count;i++, in++, out++)
4516 n = LittleLong(in->firstbrushside);
4517 c = LittleLong(in->numbrushsides);
4518 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
4519 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", n, n + c, loadmodel->brush.num_brushsides);
4520 out->firstbrushside = loadmodel->brush.data_brushsides + n;
4521 out->numbrushsides = c;
4522 n = LittleLong(in->textureindex);
4523 if (n < 0 || n >= loadmodel->num_textures)
4524 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4525 out->texture = loadmodel->data_textures + n;
4527 // make a list of mplane_t structs to construct a colbrush from
4528 if (maxplanes < out->numbrushsides)
4530 maxplanes = out->numbrushsides;
4533 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
4535 for (j = 0;j < out->numbrushsides;j++)
4537 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4538 planes[j].dist = out->firstbrushside[j].plane->dist;
4539 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
4540 planes[j].texture = out->firstbrushside[j].texture;
4542 // make the colbrush from the planes
4543 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents);
4549 static void Mod_Q3BSP_LoadEffects(lump_t *l)
4555 in = (q3deffect_t *)(mod_base + l->fileofs);
4556 if (l->filelen % sizeof(*in))
4557 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
4558 count = l->filelen / sizeof(*in);
4559 out = (q3deffect_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4561 loadmodel->brushq3.data_effects = out;
4562 loadmodel->brushq3.num_effects = count;
4564 for (i = 0;i < count;i++, in++, out++)
4566 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
4567 n = LittleLong(in->brushindex);
4568 if (n >= loadmodel->brush.num_brushes)
4570 Con_Printf("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes), setting to -1\n", n, loadmodel->brush.num_brushes);
4573 out->brushindex = n;
4574 out->unknown = LittleLong(in->unknown);
4578 static void Mod_Q3BSP_LoadVertices(lump_t *l)
4583 in = (q3dvertex_t *)(mod_base + l->fileofs);
4584 if (l->filelen % sizeof(*in))
4585 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
4586 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
4587 loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 3 + 2 + 2 + 4)));
4588 loadmodel->brushq3.data_normal3f = loadmodel->brushq3.data_vertex3f + count * 3;
4589 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_normal3f + count * 3;
4590 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
4591 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
4593 for (i = 0;i < count;i++, in++)
4595 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
4596 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
4597 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
4598 loadmodel->brushq3.data_normal3f[i * 3 + 0] = LittleFloat(in->normal3f[0]);
4599 loadmodel->brushq3.data_normal3f[i * 3 + 1] = LittleFloat(in->normal3f[1]);
4600 loadmodel->brushq3.data_normal3f[i * 3 + 2] = LittleFloat(in->normal3f[2]);
4601 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
4602 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
4603 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
4604 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
4605 // svector/tvector are calculated later in face loading
4606 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
4607 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
4608 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
4609 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
4613 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
4619 in = (int *)(mod_base + l->fileofs);
4620 if (l->filelen % sizeof(int[3]))
4621 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
4622 count = l->filelen / sizeof(*in);
4623 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4625 loadmodel->brushq3.num_triangles = count / 3;
4626 loadmodel->brushq3.data_element3i = out;
4628 for (i = 0;i < count;i++, in++, out++)
4630 *out = LittleLong(*in);
4631 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
4633 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
4639 static void Mod_Q3BSP_LoadLightmaps(lump_t *l)
4648 in = (q3dlightmap_t *)(mod_base + l->fileofs);
4649 if (l->filelen % sizeof(*in))
4650 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
4651 count = l->filelen / sizeof(*in);
4652 out = (rtexture_t **)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4654 loadmodel->brushq3.data_lightmaps = out;
4655 loadmodel->brushq3.num_lightmaps = count;
4657 // deluxemapped q3bsp files have an even number of lightmaps, and surfaces
4658 // always index even numbered ones (0, 2, 4, ...), the odd numbered
4659 // lightmaps are the deluxemaps (light direction textures), so if we
4660 // encounter any odd numbered lightmaps it is not a deluxemapped bsp, it
4661 // is also not a deluxemapped bsp if it has an odd number of lightmaps or
4663 loadmodel->brushq3.deluxemapping = true;
4664 loadmodel->brushq3.deluxemapping_modelspace = true;
4665 if (count < 2 || (count & 1))
4666 loadmodel->brushq3.deluxemapping = false;
4668 // q3map2 sometimes (or always?) makes a second blank lightmap for no
4669 // reason when only one lightmap is used, which can throw off the
4670 // deluxemapping detection method, so check 2-lightmap bsp's specifically
4671 // to see if the second lightmap is blank, if so it is not deluxemapped.
4674 c = in[count - 1].rgb;
4675 for (i = 0;i < 128*128*3;i++)
4680 // all pixels in the unused lightmap were black...
4681 loadmodel->brushq3.deluxemapping = false;
4685 // further deluxemapping detection is done in Mod_Q3BSP_LoadFaces
4687 for (i = 0;i < count;i++, in++, out++)
4688 *out = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", i), 128, 128, in->rgb, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
4691 static void Mod_Q3BSP_LoadFaces(lump_t *l)
4693 q3dface_t *in, *oldin;
4694 msurface_t *out, *oldout;
4695 int i, oldi, j, n, count, invalidelements, patchsize[2], finalwidth, finalheight, xtess, ytess, finalvertices, finaltriangles, firstvertex, firstelement, type, oldnumtriangles, oldnumtriangles2, meshvertices, meshtriangles, numvertices, numtriangles;
4696 //int *originalelement3i;
4697 //int *originalneighbor3i;
4698 float *originalvertex3f;
4699 //float *originalsvector3f;
4700 //float *originaltvector3f;
4701 float *originalnormal3f;
4702 float *originalcolor4f;
4703 float *originaltexcoordtexture2f;
4704 float *originaltexcoordlightmap2f;
4707 in = (q3dface_t *)(mod_base + l->fileofs);
4708 if (l->filelen % sizeof(*in))
4709 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
4710 count = l->filelen / sizeof(*in);
4711 out = (msurface_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4713 loadmodel->data_surfaces = out;
4714 loadmodel->num_surfaces = count;
4716 // now that we have surfaces to look at, see if any of them index an odd numbered lightmap, if so this is not a deluxemapped bsp file
4717 if (loadmodel->brushq3.deluxemapping)
4719 for (i = 0;i < count;i++)
4721 n = LittleLong(in[i].lightmapindex);
4722 if (n >= 0 && ((n & 1) || n + 1 >= loadmodel->brushq3.num_lightmaps))
4724 loadmodel->brushq3.deluxemapping = false;
4729 Con_DPrintf("%s is %sdeluxemapped\n", loadmodel->name, loadmodel->brushq3.deluxemapping ? "" : "not ");
4737 for (;i < count;i++, in++, out++)
4739 // check face type first
4740 type = LittleLong(in->type);
4741 if (type != Q3FACETYPE_POLYGON
4742 && type != Q3FACETYPE_PATCH
4743 && type != Q3FACETYPE_MESH
4744 && type != Q3FACETYPE_FLARE)
4746 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
4750 n = LittleLong(in->textureindex);
4751 if (n < 0 || n >= loadmodel->num_textures)
4753 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
4756 out->texture = loadmodel->data_textures + n;
4757 n = LittleLong(in->effectindex);
4758 if (n < -1 || n >= loadmodel->brushq3.num_effects)
4760 if (developer.integer >= 100)
4761 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
4767 out->effect = loadmodel->brushq3.data_effects + n;
4768 n = LittleLong(in->lightmapindex);
4769 if (n >= loadmodel->brushq3.num_lightmaps)
4771 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_lightmaps);
4778 out->lightmaptexture = NULL;
4779 out->deluxemaptexture = r_texture_blanknormalmap;
4783 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n];
4784 if (loadmodel->brushq3.deluxemapping)
4785 out->deluxemaptexture = loadmodel->brushq3.data_lightmaps[n+1];
4787 out->deluxemaptexture = r_texture_blanknormalmap;
4790 firstvertex = LittleLong(in->firstvertex);
4791 numvertices = LittleLong(in->numvertices);
4792 firstelement = LittleLong(in->firstelement);
4793 numtriangles = LittleLong(in->numelements) / 3;
4794 if (numtriangles * 3 != LittleLong(in->numelements))
4796 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));
4799 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
4801 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);
4804 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
4806 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);
4811 case Q3FACETYPE_POLYGON:
4812 case Q3FACETYPE_MESH:
4813 // no processing necessary
4815 case Q3FACETYPE_PATCH:
4816 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4817 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4818 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))
4820 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
4823 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4824 // convert patch to Q3FACETYPE_MESH
4825 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4826 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4827 // bound to user settings
4828 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4829 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4830 // bound to sanity settings
4831 xtess = bound(1, xtess, 1024);
4832 ytess = bound(1, ytess, 1024);
4833 // bound to user limit on vertices
4834 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4841 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4842 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4843 numvertices = finalwidth * finalheight;
4844 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4846 case Q3FACETYPE_FLARE:
4847 if (developer.integer >= 100)
4848 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
4852 out->num_vertices = numvertices;
4853 out->num_triangles = numtriangles;
4854 meshvertices += out->num_vertices;
4855 meshtriangles += out->num_triangles;
4861 Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true, false);
4864 for (;i < count && meshvertices + out->num_vertices <= loadmodel->surfmesh.num_vertices;i++, in++, out++)
4866 if (out->num_vertices < 3 || out->num_triangles < 1)
4869 type = LittleLong(in->type);
4870 firstvertex = LittleLong(in->firstvertex);
4871 firstelement = LittleLong(in->firstelement);
4872 out->num_firstvertex = meshvertices;
4873 out->num_firsttriangle = meshtriangles;
4876 case Q3FACETYPE_POLYGON:
4877 case Q3FACETYPE_MESH:
4878 // no processing necessary
4879 for (j = 0;j < out->num_vertices;j++)
4881 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
4882 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
4883 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
4884 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 0];
4885 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 1];
4886 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 2];
4887 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
4888 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
4889 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
4890 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
4891 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
4892 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
4893 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
4894 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
4896 for (j = 0;j < out->num_triangles*3;j++)
4897 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
4899 case Q3FACETYPE_PATCH:
4900 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4901 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4902 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4903 originalnormal3f = loadmodel->brushq3.data_normal3f + firstvertex * 3;
4904 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
4905 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
4906 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
4907 // convert patch to Q3FACETYPE_MESH
4908 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4909 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4910 // bound to user settings
4911 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4912 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4913 // bound to sanity settings
4914 xtess = bound(1, xtess, 1024);
4915 ytess = bound(1, ytess, 1024);
4916 // bound to user limit on vertices
4917 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4924 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4925 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4926 finalvertices = finalwidth * finalheight;
4927 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4928 type = Q3FACETYPE_MESH;
4929 // generate geometry
4930 // (note: normals are skipped because they get recalculated)
4931 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4932 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalnormal3f, xtess, ytess);
4933 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
4934 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
4935 Q3PatchTesselateFloat(4, sizeof(float[4]), (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
4936 Q3PatchTriangleElements((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
4937 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);
4938 if (developer.integer >= 100)
4940 if (out->num_triangles < finaltriangles)
4941 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);
4943 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);
4945 // q3map does not put in collision brushes for curves... ugh
4946 // build the lower quality collision geometry
4947 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4948 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4949 // bound to user settings
4950 xtess = bound(r_subdivisions_collision_mintess.integer, xtess, r_subdivisions_collision_maxtess.integer);
4951 ytess = bound(r_subdivisions_collision_mintess.integer, ytess, r_subdivisions_collision_maxtess.integer);
4952 // bound to sanity settings
4953 xtess = bound(1, xtess, 1024);
4954 ytess = bound(1, ytess, 1024);
4955 // bound to user limit on vertices
4956 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_collision_maxvertices.integer, 262144))
4963 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4964 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4965 finalvertices = finalwidth * finalheight;
4966 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4968 out->data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
4969 out->data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
4970 out->num_collisionvertices = finalvertices;
4971 out->num_collisiontriangles = finaltriangles;
4972 Q3PatchTesselateFloat(3, sizeof(float[3]), out->data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4973 Q3PatchTriangleElements(out->data_collisionelement3i, finalwidth, finalheight, 0);
4975 //Mod_SnapVertices(3, out->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), 0.25);
4976 Mod_SnapVertices(3, out->num_collisionvertices, out->data_collisionvertex3f, 1);
4978 oldnumtriangles = out->num_triangles;
4979 oldnumtriangles2 = out->num_collisiontriangles;
4980 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(out->num_collisiontriangles, out->data_collisionelement3i, out->data_collisionelement3i, out->data_collisionvertex3f);
4981 if (developer.integer >= 100)
4982 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);
4987 meshvertices += out->num_vertices;
4988 meshtriangles += out->num_triangles;
4989 for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
4990 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)
4992 if (invalidelements)
4994 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);
4995 for (j = 0;j < out->num_triangles * 3;j++)
4997 Con_Printf(" %i", (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
4998 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)
4999 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
5003 // calculate a bounding box
5004 VectorClear(out->mins);
5005 VectorClear(out->maxs);
5006 if (out->num_vertices)
5008 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->mins);
5009 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->maxs);
5010 for (j = 1, v = (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
5012 out->mins[0] = min(out->mins[0], v[0]);
5013 out->maxs[0] = max(out->maxs[0], v[0]);
5014 out->mins[1] = min(out->mins[1], v[1]);
5015 out->maxs[1] = max(out->maxs[1], v[1]);
5016 out->mins[2] = min(out->mins[2], v[2]);
5017 out->maxs[2] = max(out->maxs[2], v[2]);
5019 out->mins[0] -= 1.0f;
5020 out->mins[1] -= 1.0f;
5021 out->mins[2] -= 1.0f;
5022 out->maxs[0] += 1.0f;
5023 out->maxs[1] += 1.0f;
5024 out->maxs[2] += 1.0f;
5026 // set lightmap styles for consistency with q1bsp
5027 //out->lightmapinfo->styles[0] = 0;
5028 //out->lightmapinfo->styles[1] = 255;
5029 //out->lightmapinfo->styles[2] = 255;
5030 //out->lightmapinfo->styles[3] = 255;
5033 // for per pixel lighting
5034 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);
5036 // free the no longer needed vertex data
5037 loadmodel->brushq3.num_vertices = 0;
5038 if (loadmodel->brushq3.data_vertex3f)
5039 Mem_Free(loadmodel->brushq3.data_vertex3f);
5040 loadmodel->brushq3.data_vertex3f = NULL;
5041 loadmodel->brushq3.data_normal3f = NULL;
5042 loadmodel->brushq3.data_texcoordtexture2f = NULL;
5043 loadmodel->brushq3.data_texcoordlightmap2f = NULL;
5044 loadmodel->brushq3.data_color4f = NULL;
5045 // free the no longer needed triangle data
5046 loadmodel->brushq3.num_triangles = 0;
5047 if (loadmodel->brushq3.data_element3i)
5048 Mem_Free(loadmodel->brushq3.data_element3i);
5049 loadmodel->brushq3.data_element3i = NULL;
5052 static void Mod_Q3BSP_LoadModels(lump_t *l)
5056 int i, j, n, c, count;
5058 in = (q3dmodel_t *)(mod_base + l->fileofs);
5059 if (l->filelen % sizeof(*in))
5060 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
5061 count = l->filelen / sizeof(*in);
5062 out = (q3dmodel_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5064 loadmodel->brushq3.data_models = out;
5065 loadmodel->brushq3.num_models = count;
5067 for (i = 0;i < count;i++, in++, out++)
5069 for (j = 0;j < 3;j++)
5071 out->mins[j] = LittleFloat(in->mins[j]);
5072 out->maxs[j] = LittleFloat(in->maxs[j]);
5074 n = LittleLong(in->firstface);
5075 c = LittleLong(in->numfaces);
5076 if (n < 0 || n + c > loadmodel->num_surfaces)
5077 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)", n, n + c, loadmodel->num_surfaces);
5080 n = LittleLong(in->firstbrush);
5081 c = LittleLong(in->numbrushes);
5082 if (n < 0 || n + c > loadmodel->brush.num_brushes)
5083 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)", n, n + c, loadmodel->brush.num_brushes);
5084 out->firstbrush = n;
5085 out->numbrushes = c;
5089 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
5095 in = (int *)(mod_base + l->fileofs);
5096 if (l->filelen % sizeof(*in))
5097 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
5098 count = l->filelen / sizeof(*in);
5099 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5101 loadmodel->brush.data_leafbrushes = out;
5102 loadmodel->brush.num_leafbrushes = count;
5104 for (i = 0;i < count;i++, in++, out++)
5106 n = LittleLong(*in);
5107 if (n < 0 || n >= loadmodel->brush.num_brushes)
5108 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)", n, loadmodel->brush.num_brushes);
5113 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
5119 in = (int *)(mod_base + l->fileofs);
5120 if (l->filelen % sizeof(*in))
5121 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
5122 count = l->filelen / sizeof(*in);
5123 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5125 loadmodel->brush.data_leafsurfaces = out;
5126 loadmodel->brush.num_leafsurfaces = count;
5128 for (i = 0;i < count;i++, in++, out++)
5130 n = LittleLong(*in);
5131 if (n < 0 || n >= loadmodel->num_surfaces)
5132 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)", n, loadmodel->num_surfaces);
5137 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
5141 int i, j, n, c, count;
5143 in = (q3dleaf_t *)(mod_base + l->fileofs);
5144 if (l->filelen % sizeof(*in))
5145 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
5146 count = l->filelen / sizeof(*in);
5147 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5149 loadmodel->brush.data_leafs = out;
5150 loadmodel->brush.num_leafs = count;
5152 for (i = 0;i < count;i++, in++, out++)
5156 out->clusterindex = LittleLong(in->clusterindex);
5157 out->areaindex = LittleLong(in->areaindex);
5158 for (j = 0;j < 3;j++)
5160 // yes the mins/maxs are ints
5161 out->mins[j] = LittleLong(in->mins[j]) - 1;
5162 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5164 n = LittleLong(in->firstleafface);
5165 c = LittleLong(in->numleaffaces);
5166 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
5167 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)", n, n + c, loadmodel->brush.num_leafsurfaces);
5168 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
5169 out->numleafsurfaces = c;
5170 n = LittleLong(in->firstleafbrush);
5171 c = LittleLong(in->numleafbrushes);
5172 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
5173 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)", n, n + c, loadmodel->brush.num_leafbrushes);
5174 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
5175 out->numleafbrushes = c;
5179 static void Mod_Q3BSP_LoadNodes(lump_t *l)
5185 in = (q3dnode_t *)(mod_base + l->fileofs);
5186 if (l->filelen % sizeof(*in))
5187 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
5188 count = l->filelen / sizeof(*in);
5189 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5191 loadmodel->brush.data_nodes = out;
5192 loadmodel->brush.num_nodes = count;
5194 for (i = 0;i < count;i++, in++, out++)
5197 n = LittleLong(in->planeindex);
5198 if (n < 0 || n >= loadmodel->brush.num_planes)
5199 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5200 out->plane = loadmodel->brush.data_planes + n;
5201 for (j = 0;j < 2;j++)
5203 n = LittleLong(in->childrenindex[j]);
5206 if (n >= loadmodel->brush.num_nodes)
5207 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)", n, loadmodel->brush.num_nodes);
5208 out->children[j] = loadmodel->brush.data_nodes + n;
5213 if (n >= loadmodel->brush.num_leafs)
5214 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)", n, loadmodel->brush.num_leafs);
5215 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
5218 for (j = 0;j < 3;j++)
5220 // yes the mins/maxs are ints
5221 out->mins[j] = LittleLong(in->mins[j]) - 1;
5222 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5226 // set the parent pointers
5227 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
5230 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
5233 q3dlightgrid_t *out;
5236 in = (q3dlightgrid_t *)(mod_base + l->fileofs);
5237 if (l->filelen % sizeof(*in))
5238 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
5239 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
5240 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
5241 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
5242 loadmodel->brushq3.num_lightgrid_imins[0] = (int)ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5243 loadmodel->brushq3.num_lightgrid_imins[1] = (int)ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5244 loadmodel->brushq3.num_lightgrid_imins[2] = (int)ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5245 loadmodel->brushq3.num_lightgrid_imaxs[0] = (int)floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5246 loadmodel->brushq3.num_lightgrid_imaxs[1] = (int)floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5247 loadmodel->brushq3.num_lightgrid_imaxs[2] = (int)floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5248 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
5249 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
5250 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
5251 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
5252 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]);
5253 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]);
5255 // if lump is empty there is nothing to load, we can deal with that in the LightPoint code
5258 if (l->filelen < count * (int)sizeof(*in))
5259 Host_Error("Mod_Q3BSP_LoadLightGrid: invalid lightgrid lump size %i bytes, should be %i bytes (%ix%ix%i)", l->filelen, count * sizeof(*in), loadmodel->brushq3.num_lightgrid_dimensions[0], loadmodel->brushq3.num_lightgrid_dimensions[1], loadmodel->brushq3.num_lightgrid_dimensions[2]);
5260 if (l->filelen != count * (int)sizeof(*in))
5261 Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i", count * sizeof(*in), l->filelen);
5262 out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5263 loadmodel->brushq3.data_lightgrid = out;
5264 loadmodel->brushq3.num_lightgrid = count;
5265 // no swapping or validation necessary
5266 memcpy(out, in, count * (int)sizeof(*out));
5270 static void Mod_Q3BSP_LoadPVS(lump_t *l)
5275 if (l->filelen == 0)
5278 // unvised maps often have cluster indices even without pvs, so check
5279 // leafs to find real number of clusters
5280 loadmodel->brush.num_pvsclusters = 1;
5281 for (i = 0;i < loadmodel->brush.num_leafs;i++)
5282 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
5285 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
5286 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5287 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5288 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
5292 in = (q3dpvs_t *)(mod_base + l->fileofs);
5294 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
5296 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
5297 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
5298 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
5299 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
5300 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5301 if (l->filelen < totalchains + (int)sizeof(*in))
5302 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, totalchains + sizeof(*in), l->filelen);
5304 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5305 memcpy(loadmodel->brush.data_pvsclusters, (unsigned char *)(in + 1), totalchains);
5308 static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
5310 int i, j, k, index[3];
5311 float transformed[3], blend1, blend2, blend, yaw, pitch, sinpitch, stylescale;
5312 q3dlightgrid_t *a, *s;
5314 // scale lighting by lightstyle[0] so that darkmode in dpmod works properly
5315 stylescale = r_refdef.lightstylevalue[0] * (1.0f / 264.0f);
5317 if (!model->brushq3.num_lightgrid)
5319 ambientcolor[0] = stylescale;
5320 ambientcolor[1] = stylescale;
5321 ambientcolor[2] = stylescale;
5325 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
5326 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
5327 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
5328 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
5329 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
5330 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
5331 index[0] = (int)floor(transformed[0]);
5332 index[1] = (int)floor(transformed[1]);
5333 index[2] = (int)floor(transformed[2]);
5334 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
5336 // now lerp the values
5337 VectorClear(diffusenormal);
5338 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
5339 for (k = 0;k < 2;k++)
5341 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
5342 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
5344 for (j = 0;j < 2;j++)
5346 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
5347 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
5349 for (i = 0;i < 2;i++)
5351 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0]))) * stylescale;
5352 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
5354 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
5355 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
5356 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
5357 pitch = s->diffusepitch * M_PI / 128;
5358 yaw = s->diffuseyaw * M_PI / 128;
5359 sinpitch = sin(pitch);
5360 diffusenormal[0] += blend * (cos(yaw) * sinpitch);
5361 diffusenormal[1] += blend * (sin(yaw) * sinpitch);
5362 diffusenormal[2] += blend * (cos(pitch));
5363 //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)));
5368 // normalize the light direction before turning
5369 VectorNormalize(diffusenormal);
5370 //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]);
5373 static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t point, int markframe)
5378 // find which leaf the point is in
5380 node = node->children[DotProduct(point, node->plane->normal) < node->plane->dist];
5381 // point trace the brushes
5382 leaf = (mleaf_t *)node;
5383 for (i = 0;i < leaf->numleafbrushes;i++)
5385 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5386 if (brush && brush->markframe != markframe && BoxesOverlap(point, point, brush->mins, brush->maxs))
5388 brush->markframe = markframe;
5389 Collision_TracePointBrushFloat(trace, point, brush);
5392 // can't do point traces on curves (they have no thickness)
5395 static void Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t start, const vec3_t end, vec_t startfrac, vec_t endfrac, const vec3_t linestart, const vec3_t lineend, int markframe, const vec3_t segmentmins, const vec3_t segmentmaxs)
5397 int i, startside, endside;
5398 float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
5400 msurface_t *surface;
5403 // walk the tree until we hit a leaf, recursing for any split cases
5406 plane = node->plane;
5407 // axial planes are much more common than non-axial, so an optimized
5408 // axial case pays off here
5409 if (plane->type < 3)
5411 dist1 = start[plane->type] - plane->dist;
5412 dist2 = end[plane->type] - plane->dist;
5416 dist1 = DotProduct(start, plane->normal) - plane->dist;
5417 dist2 = DotProduct(end, plane->normal) - plane->dist;
5419 startside = dist1 < 0;
5420 endside = dist2 < 0;
5421 if (startside == endside)
5423 // most of the time the line fragment is on one side of the plane
5424 node = node->children[startside];
5428 // line crosses node plane, split the line
5429 dist1 = PlaneDiff(linestart, plane);
5430 dist2 = PlaneDiff(lineend, plane);
5431 midfrac = dist1 / (dist1 - dist2);
5432 VectorLerp(linestart, midfrac, lineend, mid);
5433 // take the near side first
5434 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5435 // if we found an impact on the front side, don't waste time
5436 // exploring the far side
5437 if (midfrac <= trace->realfraction)
5438 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5443 nodesegmentmins[0] = min(start[0], end[0]) - 1;
5444 nodesegmentmins[1] = min(start[1], end[1]) - 1;
5445 nodesegmentmins[2] = min(start[2], end[2]) - 1;
5446 nodesegmentmaxs[0] = max(start[0], end[0]) + 1;
5447 nodesegmentmaxs[1] = max(start[1], end[1]) + 1;
5448 nodesegmentmaxs[2] = max(start[2], end[2]) + 1;
5449 // line trace the brushes
5450 leaf = (mleaf_t *)node;
5451 for (i = 0;i < leaf->numleafbrushes;i++)
5453 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5454 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5456 brush->markframe = markframe;
5457 Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
5460 // can't do point traces on curves (they have no thickness)
5461 if (mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
5463 // line trace the curves
5464 for (i = 0;i < leaf->numleafsurfaces;i++)
5466 surface = model->data_surfaces + leaf->firstleafsurface[i];
5467 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5469 surface->collisionmarkframe = markframe;
5470 Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5476 static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int markframe, const vec3_t segmentmins, const vec3_t segmentmaxs)
5482 msurface_t *surface;
5484 float nodesegmentmins[3], nodesegmentmaxs[3];
5485 // walk the tree until we hit a leaf, recursing for any split cases
5488 plane = node->plane;
5489 // axial planes are much more common than non-axial, so an optimized
5490 // axial case pays off here
5491 if (plane->type < 3)
5493 // this is an axial plane, compare bounding box directly to it and
5494 // recurse sides accordingly
5495 // recurse down node sides
5496 // use an inlined axial BoxOnPlaneSide to slightly reduce overhead
5497 //sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, plane);
5498 //sides = ((segmentmaxs[plane->type] >= plane->dist) | ((segmentmins[plane->type] < plane->dist) << 1));
5499 sides = ((segmentmaxs[plane->type] >= plane->dist) + ((segmentmins[plane->type] < plane->dist) * 2));
5503 // this is a non-axial plane, so check if the start and end boxes
5504 // are both on one side of the plane to handle 'diagonal' cases
5505 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, plane);
5509 // segment crosses plane
5510 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5513 // if sides == 0 then the trace itself is bogus (Not A Number values),
5514 // in this case we simply pretend the trace hit nothing
5516 return; // ERROR: NAN bounding box!
5517 // take whichever side the segment box is on
5518 node = node->children[sides - 1];
5520 nodesegmentmins[0] = max(segmentmins[0], node->mins[0] - 1);
5521 nodesegmentmins[1] = max(segmentmins[1], node->mins[1] - 1);
5522 nodesegmentmins[2] = max(segmentmins[2], node->mins[2] - 1);
5523 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0] + 1);
5524 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1] + 1);
5525 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2] + 1);
5527 leaf = (mleaf_t *)node;
5528 for (i = 0;i < leaf->numleafbrushes;i++)
5530 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5531 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5533 brush->markframe = markframe;
5534 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
5537 if (mod_q3bsp_curves_collisions.integer)
5539 for (i = 0;i < leaf->numleafsurfaces;i++)
5541 surface = model->data_surfaces + leaf->firstleafsurface[i];
5542 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5544 surface->collisionmarkframe = markframe;
5545 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5551 static void Mod_Q3BSP_TraceBox(model_t *model, int frame, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
5554 float segmentmins[3], segmentmaxs[3];
5555 static int markframe = 0;
5556 msurface_t *surface;
5558 memset(trace, 0, sizeof(*trace));
5559 trace->fraction = 1;
5560 trace->realfraction = 1;
5561 trace->hitsupercontentsmask = hitsupercontentsmask;
5562 if (mod_q3bsp_optimizedtraceline.integer && VectorLength2(boxmins) + VectorLength2(boxmaxs) == 0)
5564 if (VectorCompare(start, end))
5567 if (model->brush.submodel)
5569 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5570 if (brush->colbrushf)
5571 Collision_TracePointBrushFloat(trace, start, brush->colbrushf);
5574 Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, ++markframe);
5579 segmentmins[0] = min(start[0], end[0]) - 1;
5580 segmentmins[1] = min(start[1], end[1]) - 1;
5581 segmentmins[2] = min(start[2], end[2]) - 1;
5582 segmentmaxs[0] = max(start[0], end[0]) + 1;
5583 segmentmaxs[1] = max(start[1], end[1]) + 1;
5584 segmentmaxs[2] = max(start[2], end[2]) + 1;
5585 if (model->brush.submodel)
5587 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5588 if (brush->colbrushf)
5589 Collision_TraceLineBrushFloat(trace, start, end, brush->colbrushf, brush->colbrushf);
5590 if (mod_q3bsp_curves_collisions.integer)
5591 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5592 if (surface->num_collisiontriangles)
5593 Collision_TraceLineTriangleMeshFloat(trace, start, end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5596 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, end, 0, 1, start, end, ++markframe, segmentmins, segmentmaxs);
5601 // box trace, performed as brush trace
5602 colbrushf_t *thisbrush_start, *thisbrush_end;
5603 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
5604 segmentmins[0] = min(start[0], end[0]) + boxmins[0] - 1;
5605 segmentmins[1] = min(start[1], end[1]) + boxmins[1] - 1;
5606 segmentmins[2] = min(start[2], end[2]) + boxmins[2] - 1;
5607 segmentmaxs[0] = max(start[0], end[0]) + boxmaxs[0] + 1;
5608 segmentmaxs[1] = max(start[1], end[1]) + boxmaxs[1] + 1;
5609 segmentmaxs[2] = max(start[2], end[2]) + boxmaxs[2] + 1;
5610 VectorAdd(start, boxmins, boxstartmins);
5611 VectorAdd(start, boxmaxs, boxstartmaxs);
5612 VectorAdd(end, boxmins, boxendmins);
5613 VectorAdd(end, boxmaxs, boxendmaxs);
5614 thisbrush_start = Collision_BrushForBox(&identitymatrix, boxstartmins, boxstartmaxs, 0, 0, NULL);
5615 thisbrush_end = Collision_BrushForBox(&identitymatrix, boxendmins, boxendmaxs, 0, 0, NULL);
5616 if (model->brush.submodel)
5618 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5619 if (brush->colbrushf)
5620 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush->colbrushf, brush->colbrushf);
5621 if (mod_q3bsp_curves_collisions.integer)
5622 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5623 if (surface->num_collisiontriangles)
5624 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5627 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, model->brush.data_nodes, thisbrush_start, thisbrush_end, ++markframe, segmentmins, segmentmaxs);
5631 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
5633 int supercontents = 0;
5634 if (nativecontents & CONTENTSQ3_SOLID)
5635 supercontents |= SUPERCONTENTS_SOLID;
5636 if (nativecontents & CONTENTSQ3_WATER)
5637 supercontents |= SUPERCONTENTS_WATER;
5638 if (nativecontents & CONTENTSQ3_SLIME)
5639 supercontents |= SUPERCONTENTS_SLIME;
5640 if (nativecontents & CONTENTSQ3_LAVA)
5641 supercontents |= SUPERCONTENTS_LAVA;
5642 if (nativecontents & CONTENTSQ3_BODY)
5643 supercontents |= SUPERCONTENTS_BODY;
5644 if (nativecontents & CONTENTSQ3_CORPSE)
5645 supercontents |= SUPERCONTENTS_CORPSE;
5646 if (nativecontents & CONTENTSQ3_NODROP)
5647 supercontents |= SUPERCONTENTS_NODROP;
5648 if (nativecontents & CONTENTSQ3_PLAYERCLIP)
5649 supercontents |= SUPERCONTENTS_PLAYERCLIP;
5650 if (nativecontents & CONTENTSQ3_MONSTERCLIP)
5651 supercontents |= SUPERCONTENTS_MONSTERCLIP;
5652 if (nativecontents & CONTENTSQ3_DONOTENTER)
5653 supercontents |= SUPERCONTENTS_DONOTENTER;
5654 return supercontents;
5657 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
5659 int nativecontents = 0;
5660 if (supercontents & SUPERCONTENTS_SOLID)
5661 nativecontents |= CONTENTSQ3_SOLID;
5662 if (supercontents & SUPERCONTENTS_WATER)
5663 nativecontents |= CONTENTSQ3_WATER;
5664 if (supercontents & SUPERCONTENTS_SLIME)
5665 nativecontents |= CONTENTSQ3_SLIME;
5666 if (supercontents & SUPERCONTENTS_LAVA)
5667 nativecontents |= CONTENTSQ3_LAVA;
5668 if (supercontents & SUPERCONTENTS_BODY)
5669 nativecontents |= CONTENTSQ3_BODY;
5670 if (supercontents & SUPERCONTENTS_CORPSE)
5671 nativecontents |= CONTENTSQ3_CORPSE;
5672 if (supercontents & SUPERCONTENTS_NODROP)
5673 nativecontents |= CONTENTSQ3_NODROP;
5674 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
5675 nativecontents |= CONTENTSQ3_PLAYERCLIP;
5676 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
5677 nativecontents |= CONTENTSQ3_MONSTERCLIP;
5678 if (supercontents & SUPERCONTENTS_DONOTENTER)
5679 nativecontents |= CONTENTSQ3_DONOTENTER;
5680 return nativecontents;
5683 void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
5688 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
5689 node = node->children[1];
5691 numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
5692 if (loadmodel->brush.num_leafs < numleafs)
5693 loadmodel->brush.num_leafs = numleafs;
5696 void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
5698 int i, j, numshadowmeshtriangles;
5699 q3dheader_t *header;
5700 float corner[3], yawradius, modelradius;
5701 msurface_t *surface;
5703 mod->type = mod_brushq3;
5704 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
5707 header = (q3dheader_t *)buffer;
5709 i = LittleLong(header->version);
5710 if (i != Q3BSPVERSION)
5711 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
5712 mod->brush.ishlbsp = false;
5713 mod->brush.ismcbsp = false;
5714 if (loadmodel->isworldmodel)
5716 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
5717 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
5720 mod->soundfromcenter = true;
5721 mod->TraceBox = Mod_Q3BSP_TraceBox;
5722 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
5723 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
5724 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
5725 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
5726 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
5727 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
5728 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
5729 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
5730 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
5731 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5732 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
5733 mod->Draw = R_Q1BSP_Draw;
5734 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
5735 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
5736 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
5737 mod->DrawLight = R_Q1BSP_DrawLight;
5739 mod_base = (unsigned char *)header;
5741 // swap all the lumps
5742 header->ident = LittleLong(header->ident);
5743 header->version = LittleLong(header->version);
5744 for (i = 0;i < Q3HEADER_LUMPS;i++)
5746 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
5747 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
5750 mod->brush.qw_md4sum = 0;
5751 mod->brush.qw_md4sum2 = 0;
5752 for (i = 0;i < Q3HEADER_LUMPS;i++)
5754 if (i == Q3LUMP_ENTITIES)
5756 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
5757 if (i == Q3LUMP_PVS || i == Q3LUMP_LEAFS || i == Q3LUMP_NODES)
5759 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
5762 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
5763 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
5764 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
5765 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
5766 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
5767 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
5768 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
5769 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
5770 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS]);
5771 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
5772 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
5773 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
5774 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
5775 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
5776 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
5777 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
5778 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
5779 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
5781 // the MakePortals code works fine on the q3bsp data as well
5782 Mod_Q1BSP_MakePortals();
5784 // make a single combined shadow mesh to allow optimized shadow volume creation
5785 numshadowmeshtriangles = 0;
5786 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5788 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
5789 numshadowmeshtriangles += surface->num_triangles;
5791 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
5792 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5793 if (surface->num_triangles > 0)
5794 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));
5795 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
5796 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
5798 loadmodel->brush.num_leafs = 0;
5799 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
5801 if (loadmodel->isworldmodel)
5803 // clear out any stale submodels or worldmodels lying around
5804 // if we did this clear before now, an error might abort loading and
5805 // leave things in a bad state
5806 Mod_RemoveStaleWorldModels(loadmodel);
5810 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
5815 // LordHavoc: only register submodels if it is the world
5816 // (prevents external bsp models from replacing world submodels with
5818 if (!loadmodel->isworldmodel)
5820 // duplicate the basic information
5821 sprintf(name, "*%i", i);
5822 mod = Mod_FindName(name);
5824 strlcpy(mod->name, name, sizeof(mod->name));
5825 // textures and memory belong to the main model
5826 mod->texturepool = NULL;
5827 mod->mempool = NULL;
5828 mod->brush.GetPVS = NULL;
5829 mod->brush.FatPVS = NULL;
5830 mod->brush.BoxTouchingPVS = NULL;
5831 mod->brush.BoxTouchingLeafPVS = NULL;
5832 mod->brush.BoxTouchingVisibleLeafs = NULL;
5833 mod->brush.FindBoxClusters = NULL;
5834 mod->brush.LightPoint = NULL;
5835 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5837 mod->brush.submodel = i;
5839 // make the model surface list (used by shadowing/lighting)
5840 mod->firstmodelsurface = mod->brushq3.data_models[i].firstface;
5841 mod->nummodelsurfaces = mod->brushq3.data_models[i].numfaces;
5842 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
5843 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
5844 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
5845 for (j = 0;j < mod->nummodelsurfaces;j++)
5846 mod->surfacelist[j] = mod->firstmodelsurface + j;
5848 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
5849 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
5850 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
5851 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
5852 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
5853 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
5854 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
5855 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
5856 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
5857 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
5858 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
5859 mod->yawmins[2] = mod->normalmins[2];
5860 mod->yawmaxs[2] = mod->normalmaxs[2];
5861 mod->radius = modelradius;
5862 mod->radius2 = modelradius * modelradius;
5864 for (j = 0;j < mod->nummodelsurfaces;j++)
5865 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->surfaceflags & Q3SURFACEFLAG_SKY)
5867 if (j < mod->nummodelsurfaces)
5868 mod->DrawSky = R_Q1BSP_DrawSky;
5872 void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
5874 int i = LittleLong(((int *)buffer)[1]);
5875 if (i == Q3BSPVERSION)
5876 Mod_Q3BSP_Load(mod,buffer, bufferend);
5877 else if (i == Q2BSPVERSION)
5878 Mod_Q2BSP_Load(mod,buffer, bufferend);
5880 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i", i);
5883 void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend)
5885 Host_Error("Mod_MAP_Load: not yet implemented");