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 extern cvar_t collision_prefernudgedfraction;
618 static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int num, double p1f, double p2f, double p1[3], double p2[3])
620 // status variables, these don't need to be saved on the stack when
621 // recursing... but are because this should be thread-safe
622 // (note: tracing against a bbox is not thread-safe, yet)
627 // variables that need to be stored on the stack when recursing
632 // LordHavoc: a goto! everyone flee in terror... :)
637 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
638 if (!t->trace->startfound)
640 t->trace->startfound = true;
641 t->trace->startsupercontents |= num;
643 if (num & SUPERCONTENTS_LIQUIDSMASK)
644 t->trace->inwater = true;
646 t->trace->inopen = true;
647 if (num & SUPERCONTENTS_SOLID)
648 t->trace->hittexture = &mod_q1bsp_texture_solid;
649 else if (num & SUPERCONTENTS_SKY)
650 t->trace->hittexture = &mod_q1bsp_texture_sky;
651 else if (num & SUPERCONTENTS_LAVA)
652 t->trace->hittexture = &mod_q1bsp_texture_lava;
653 else if (num & SUPERCONTENTS_SLIME)
654 t->trace->hittexture = &mod_q1bsp_texture_slime;
656 t->trace->hittexture = &mod_q1bsp_texture_water;
657 t->trace->hitq3surfaceflags = t->trace->hittexture->surfaceflags;
658 t->trace->hitsupercontents = num;
659 if (num & t->trace->hitsupercontentsmask)
661 // if the first leaf is solid, set startsolid
662 if (t->trace->allsolid)
663 t->trace->startsolid = true;
664 #if COLLISIONPARANOID >= 3
667 return HULLCHECKSTATE_SOLID;
671 t->trace->allsolid = false;
672 #if COLLISIONPARANOID >= 3
675 return HULLCHECKSTATE_EMPTY;
679 // find the point distances
680 node = t->hull->clipnodes + num;
682 plane = t->hull->planes + node->planenum;
685 t1 = p1[plane->type] - plane->dist;
686 t2 = p2[plane->type] - plane->dist;
690 t1 = DotProduct (plane->normal, p1) - plane->dist;
691 t2 = DotProduct (plane->normal, p2) - plane->dist;
698 #if COLLISIONPARANOID >= 3
701 num = node->children[1];
710 #if COLLISIONPARANOID >= 3
713 num = node->children[0];
719 // the line intersects, find intersection point
720 // LordHavoc: this uses the original trace for maximum accuracy
721 #if COLLISIONPARANOID >= 3
726 t1 = t->start[plane->type] - plane->dist;
727 t2 = t->end[plane->type] - plane->dist;
731 t1 = DotProduct (plane->normal, t->start) - plane->dist;
732 t2 = DotProduct (plane->normal, t->end) - plane->dist;
735 midf = t1 / (t1 - t2);
736 midf = bound(p1f, midf, p2f);
737 VectorMA(t->start, midf, t->dist, mid);
739 // recurse both sides, front side first
740 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side], p1f, midf, p1, mid);
741 // if this side is not empty, return what it is (solid or done)
742 if (ret != HULLCHECKSTATE_EMPTY)
745 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side ^ 1], midf, p2f, mid, p2);
746 // if other side is not solid, return what it is (empty or done)
747 if (ret != HULLCHECKSTATE_SOLID)
750 // front is air and back is solid, this is the impact point...
753 t->trace->plane.dist = -plane->dist;
754 VectorNegate (plane->normal, t->trace->plane.normal);
758 t->trace->plane.dist = plane->dist;
759 VectorCopy (plane->normal, t->trace->plane.normal);
762 // calculate the true fraction
763 t1 = DotProduct(t->trace->plane.normal, t->start) - t->trace->plane.dist;
764 t2 = DotProduct(t->trace->plane.normal, t->end) - t->trace->plane.dist;
765 midf = t1 / (t1 - t2);
766 t->trace->realfraction = bound(0, midf, 1);
768 // calculate the return fraction which is nudged off the surface a bit
769 midf = (t1 - DIST_EPSILON) / (t1 - t2);
770 t->trace->fraction = bound(0, midf, 1);
772 if (collision_prefernudgedfraction.integer)
773 t->trace->realfraction = t->trace->fraction;
775 #if COLLISIONPARANOID >= 3
778 return HULLCHECKSTATE_DONE;
781 //#if COLLISIONPARANOID < 2
782 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
785 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];
786 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
787 t->trace->startsupercontents |= num;
788 if (num & SUPERCONTENTS_LIQUIDSMASK)
789 t->trace->inwater = true;
791 t->trace->inopen = true;
792 if (num & t->trace->hitsupercontentsmask)
794 t->trace->allsolid = t->trace->startsolid = true;
795 return HULLCHECKSTATE_SOLID;
799 t->trace->allsolid = t->trace->startsolid = false;
800 return HULLCHECKSTATE_EMPTY;
805 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)
807 // this function currently only supports same size start and end
809 RecursiveHullCheckTraceInfo_t rhc;
811 memset(&rhc, 0, sizeof(rhc));
812 memset(trace, 0, sizeof(trace_t));
814 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
815 rhc.trace->fraction = 1;
816 rhc.trace->realfraction = 1;
817 rhc.trace->allsolid = true;
818 VectorSubtract(boxmaxs, boxmins, boxsize);
820 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
821 else if (model->brush.ismcbsp)
823 if (boxsize[2] < 48) // pick the nearest of 40 or 56
824 rhc.hull = &model->brushq1.hulls[2]; // 16x16x40
826 rhc.hull = &model->brushq1.hulls[1]; // 16x16x56
828 else if (model->brush.ishlbsp)
830 // LordHavoc: this has to have a minor tolerance (the .1) because of
831 // minor float precision errors from the box being transformed around
832 if (boxsize[0] < 32.1)
834 if (boxsize[2] < 54) // pick the nearest of 36 or 72
835 rhc.hull = &model->brushq1.hulls[3]; // 32x32x36
837 rhc.hull = &model->brushq1.hulls[1]; // 32x32x72
840 rhc.hull = &model->brushq1.hulls[2]; // 64x64x64
844 // LordHavoc: this has to have a minor tolerance (the .1) because of
845 // minor float precision errors from the box being transformed around
846 if (boxsize[0] < 32.1)
847 rhc.hull = &model->brushq1.hulls[1]; // 32x32x56
849 rhc.hull = &model->brushq1.hulls[2]; // 64x64x88
851 VectorMAMAM(1, start, 1, boxmins, -1, rhc.hull->clip_mins, rhc.start);
852 VectorMAMAM(1, end, 1, boxmins, -1, rhc.hull->clip_mins, rhc.end);
853 VectorSubtract(rhc.end, rhc.start, rhc.dist);
854 #if COLLISIONPARANOID >= 2
855 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]);
856 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
861 VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
862 memset(&testtrace, 0, sizeof(trace_t));
863 rhc.trace = &testtrace;
864 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
865 rhc.trace->fraction = 1;
866 rhc.trace->realfraction = 1;
867 rhc.trace->allsolid = true;
868 VectorCopy(test, rhc.start);
869 VectorCopy(test, rhc.end);
870 VectorClear(rhc.dist);
871 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
872 //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
873 if (!trace->startsolid && testtrace.startsolid)
874 Con_Printf(" - ended in solid!\n");
878 if (VectorLength2(rhc.dist))
879 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
881 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
885 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)
889 colplanef_t cbox_planes[6];
890 cbox.supercontents = boxsupercontents;
893 cbox.numtriangles = 0;
894 cbox.planes = cbox_planes;
896 cbox.elements = NULL;
904 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];
905 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];
906 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];
907 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];
908 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];
909 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];
910 cbox_planes[0].q3surfaceflags = boxq3surfaceflags;cbox_planes[0].texture = boxtexture;
911 cbox_planes[1].q3surfaceflags = boxq3surfaceflags;cbox_planes[1].texture = boxtexture;
912 cbox_planes[2].q3surfaceflags = boxq3surfaceflags;cbox_planes[2].texture = boxtexture;
913 cbox_planes[3].q3surfaceflags = boxq3surfaceflags;cbox_planes[3].texture = boxtexture;
914 cbox_planes[4].q3surfaceflags = boxq3surfaceflags;cbox_planes[4].texture = boxtexture;
915 cbox_planes[5].q3surfaceflags = boxq3surfaceflags;cbox_planes[5].texture = boxtexture;
916 memset(trace, 0, sizeof(trace_t));
917 trace->hitsupercontentsmask = hitsupercontentsmask;
919 trace->realfraction = 1;
920 Collision_TraceLineBrushFloat(trace, start, end, &cbox, &cbox);
922 RecursiveHullCheckTraceInfo_t rhc;
923 static hull_t box_hull;
924 static dclipnode_t box_clipnodes[6];
925 static mplane_t box_planes[6];
926 // fill in a default trace
927 memset(&rhc, 0, sizeof(rhc));
928 memset(trace, 0, sizeof(trace_t));
929 //To keep everything totally uniform, bounding boxes are turned into small
930 //BSP trees instead of being compared directly.
931 // create a temp hull from bounding box sizes
932 box_planes[0].dist = cmaxs[0] - mins[0];
933 box_planes[1].dist = cmins[0] - maxs[0];
934 box_planes[2].dist = cmaxs[1] - mins[1];
935 box_planes[3].dist = cmins[1] - maxs[1];
936 box_planes[4].dist = cmaxs[2] - mins[2];
937 box_planes[5].dist = cmins[2] - maxs[2];
938 #if COLLISIONPARANOID >= 3
939 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]);
942 if (box_hull.clipnodes == NULL)
946 //Set up the planes and clipnodes so that the six floats of a bounding box
947 //can just be stored out and get a proper hull_t structure.
949 box_hull.clipnodes = box_clipnodes;
950 box_hull.planes = box_planes;
951 box_hull.firstclipnode = 0;
952 box_hull.lastclipnode = 5;
954 for (i = 0;i < 6;i++)
956 box_clipnodes[i].planenum = i;
960 box_clipnodes[i].children[side] = CONTENTS_EMPTY;
962 box_clipnodes[i].children[side^1] = i + 1;
964 box_clipnodes[i].children[side^1] = CONTENTS_SOLID;
966 box_planes[i].type = i>>1;
967 box_planes[i].normal[i>>1] = 1;
971 // trace a line through the generated clipping hull
972 //rhc.boxsupercontents = boxsupercontents;
973 rhc.hull = &box_hull;
975 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
976 rhc.trace->fraction = 1;
977 rhc.trace->realfraction = 1;
978 rhc.trace->allsolid = true;
979 VectorCopy(start, rhc.start);
980 VectorCopy(end, rhc.end);
981 VectorSubtract(rhc.end, rhc.start, rhc.dist);
982 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
983 //VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
984 if (rhc.trace->startsupercontents)
985 rhc.trace->startsupercontents = boxsupercontents;
989 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)
993 float mid, distz = endz - startz;
997 return false; // didn't hit anything
999 switch (node->plane->type)
1002 node = node->children[x < node->plane->dist];
1005 node = node->children[y < node->plane->dist];
1008 side = startz < node->plane->dist;
1009 if ((endz < node->plane->dist) == side)
1011 node = node->children[side];
1014 // found an intersection
1015 mid = node->plane->dist;
1018 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
1019 front += startz * node->plane->normal[2];
1020 back += endz * node->plane->normal[2];
1021 side = front < node->plane->dist;
1022 if ((back < node->plane->dist) == side)
1024 node = node->children[side];
1027 // found an intersection
1028 mid = startz + distz * (front - node->plane->dist) / (front - back);
1032 // go down front side
1033 if (node->children[side]->plane && Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
1034 return true; // hit something
1037 // check for impact on this node
1038 if (node->numsurfaces)
1041 msurface_t *surface;
1043 surface = model->data_surfaces + node->firstsurface;
1044 for (i = 0;i < node->numsurfaces;i++, surface++)
1046 if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->lightmapinfo->samples)
1047 continue; // no lightmaps
1049 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];
1050 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];
1052 if (ds >= 0 && ds < surface->lightmapinfo->extents[0] && dt >= 0 && dt < surface->lightmapinfo->extents[1])
1054 unsigned char *lightmap;
1055 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;
1056 lmwidth = ((surface->lightmapinfo->extents[0]>>4)+1);
1057 lmheight = ((surface->lightmapinfo->extents[1]>>4)+1);
1058 line3 = lmwidth * 3; // LordHavoc: *3 for colored lighting
1059 size3 = lmwidth * lmheight * 3; // LordHavoc: *3 for colored lighting
1061 lightmap = surface->lightmapinfo->samples + ((dt>>4) * lmwidth + (ds>>4))*3; // LordHavoc: *3 for colored lighting
1063 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++)
1065 scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]];
1066 r00 += lightmap[ 0] * scale;g00 += lightmap[ 1] * scale;b00 += lightmap[ 2] * scale;
1067 r01 += lightmap[ 3] * scale;g01 += lightmap[ 4] * scale;b01 += lightmap[ 5] * scale;
1068 r10 += lightmap[line3+0] * scale;g10 += lightmap[line3+1] * scale;b10 += lightmap[line3+2] * scale;
1069 r11 += lightmap[line3+3] * scale;g11 += lightmap[line3+4] * scale;b11 += lightmap[line3+5] * scale;
1074 LordHavoc: here's the readable version of the interpolation
1075 code, not quite as easy for the compiler to optimize...
1077 dsfrac is the X position in the lightmap pixel, * 16
1078 dtfrac is the Y position in the lightmap pixel, * 16
1079 r00 is top left corner, r01 is top right corner
1080 r10 is bottom left corner, r11 is bottom right corner
1081 g and b are the same layout.
1082 r0 and r1 are the top and bottom intermediate results
1084 first we interpolate the top two points, to get the top
1087 r0 = (((r01-r00) * dsfrac) >> 4) + r00;
1088 g0 = (((g01-g00) * dsfrac) >> 4) + g00;
1089 b0 = (((b01-b00) * dsfrac) >> 4) + b00;
1091 then we interpolate the bottom two points, to get the
1094 r1 = (((r11-r10) * dsfrac) >> 4) + r10;
1095 g1 = (((g11-g10) * dsfrac) >> 4) + g10;
1096 b1 = (((b11-b10) * dsfrac) >> 4) + b10;
1098 then we interpolate the top and bottom samples to get the
1099 middle sample (the one which was requested)
1101 r = (((r1-r0) * dtfrac) >> 4) + r0;
1102 g = (((g1-g0) * dtfrac) >> 4) + g0;
1103 b = (((b1-b0) * dtfrac) >> 4) + b0;
1106 ambientcolor[0] += (float) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)) * (1.0f / 32768.0f);
1107 ambientcolor[1] += (float) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)) * (1.0f / 32768.0f);
1108 ambientcolor[2] += (float) ((((((((b11-b10) * dsfrac) >> 4) + b10)-((((b01-b00) * dsfrac) >> 4) + b00)) * dtfrac) >> 4) + ((((b01-b00) * dsfrac) >> 4) + b00)) * (1.0f / 32768.0f);
1109 return true; // success
1114 // go down back side
1115 node = node->children[side ^ 1];
1117 distz = endz - startz;
1122 void Mod_Q1BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
1124 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);
1125 // pretend lighting is coming down from above (due to lack of a lightgrid to know primary lighting direction)
1126 VectorSet(diffusenormal, 0, 0, 1);
1129 static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char *inend, unsigned char *out, unsigned char *outend)
1132 unsigned char *outstart = out;
1133 while (out < outend)
1137 Con_Printf("Mod_Q1BSP_DecompressVis: input underrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
1147 Con_Printf("Mod_Q1BSP_DecompressVis: input underrun (during zero-run) on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
1150 for (c = *in++;c > 0;c--)
1154 Con_Printf("Mod_Q1BSP_DecompressVis: output overrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
1165 R_Q1BSP_LoadSplitSky
1167 A sky texture is 256*128, with the right side being a masked overlay
1170 void R_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesperpixel)
1173 unsigned solidpixels[128*128], alphapixels[128*128];
1175 // if sky isn't the right size, just use it as a solid layer
1176 if (width != 256 || height != 128)
1178 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);
1179 loadmodel->brush.alphaskytexture = NULL;
1183 if (bytesperpixel == 4)
1185 for (i = 0;i < 128;i++)
1187 for (j = 0;j < 128;j++)
1189 solidpixels[(i*128) + j] = ((unsigned *)src)[i*256+j+128];
1190 alphapixels[(i*128) + j] = ((unsigned *)src)[i*256+j];
1196 // make an average value for the back to avoid
1197 // a fringe on the top level
1206 for (i = 0;i < 128;i++)
1208 for (j = 0;j < 128;j++)
1210 rgba.i = palette_complete[src[i*256 + j + 128]];
1216 rgba.b[0] = r/(128*128);
1217 rgba.b[1] = g/(128*128);
1218 rgba.b[2] = b/(128*128);
1220 for (i = 0;i < 128;i++)
1222 for (j = 0;j < 128;j++)
1224 solidpixels[(i*128) + j] = palette_complete[src[i*256 + j + 128]];
1225 alphapixels[(i*128) + j] = (p = src[i*256 + j]) ? palette_complete[p] : rgba.i;
1230 loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", 128, 128, (unsigned char *) solidpixels, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
1231 loadmodel->brush.alphaskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_alphatexture", 128, 128, (unsigned char *) alphapixels, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
1234 static void Mod_Q1BSP_LoadTextures(lump_t *l)
1236 int i, j, k, num, max, altmax, mtwidth, mtheight, *dofs, incomplete;
1238 texture_t *tx, *tx2, *anims[10], *altanims[10];
1240 unsigned char *data, *mtdata;
1242 char mapname[MAX_QPATH], name[MAX_QPATH];
1244 loadmodel->data_textures = NULL;
1246 // add two slots for notexture walls and notexture liquids
1249 m = (dmiptexlump_t *)(mod_base + l->fileofs);
1250 m->nummiptex = LittleLong (m->nummiptex);
1251 loadmodel->num_textures = m->nummiptex + 2;
1256 loadmodel->num_textures = 2;
1259 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
1261 // fill out all slots with notexture
1262 for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
1264 strlcpy(tx->name, "NO TEXTURE FOUND", sizeof(tx->name));
1267 tx->numskinframes = 1;
1268 tx->skinframerate = 1;
1269 tx->currentskinframe = tx->skinframes;
1270 tx->skinframes[0].base = r_texture_notexture;
1271 tx->basematerialflags = 0;
1272 if (i == loadmodel->num_textures - 1)
1274 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES;
1275 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1276 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1280 tx->basematerialflags |= MATERIALFLAG_WALL;
1281 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1282 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1284 tx->currentframe = tx;
1290 s = loadmodel->name;
1291 if (!strncasecmp(s, "maps/", 5))
1293 FS_StripExtension(s, mapname, sizeof(mapname));
1295 // just to work around bounds checking when debugging with it (array index out of bounds error thing)
1297 // LordHavoc: mostly rewritten map texture loader
1298 for (i = 0;i < m->nummiptex;i++)
1300 dofs[i] = LittleLong(dofs[i]);
1301 if (dofs[i] == -1 || r_nosurftextures.integer)
1303 dmiptex = (miptex_t *)((unsigned char *)m + dofs[i]);
1305 // make sure name is no more than 15 characters
1306 for (j = 0;dmiptex->name[j] && j < 15;j++)
1307 name[j] = dmiptex->name[j];
1310 mtwidth = LittleLong(dmiptex->width);
1311 mtheight = LittleLong(dmiptex->height);
1313 j = LittleLong(dmiptex->offsets[0]);
1317 if (j < 40 || j + mtwidth * mtheight > l->filelen)
1319 Con_Printf("Texture \"%s\" in \"%s\"is corrupt or incomplete\n", dmiptex->name, loadmodel->name);
1322 mtdata = (unsigned char *)dmiptex + j;
1325 if ((mtwidth & 15) || (mtheight & 15))
1326 Con_Printf("warning: texture \"%s\" in \"%s\" is not 16 aligned\n", dmiptex->name, loadmodel->name);
1328 // LordHavoc: force all names to lowercase
1329 for (j = 0;name[j];j++)
1330 if (name[j] >= 'A' && name[j] <= 'Z')
1331 name[j] += 'a' - 'A';
1333 tx = loadmodel->data_textures + i;
1334 strlcpy(tx->name, name, sizeof(tx->name));
1335 tx->width = mtwidth;
1336 tx->height = mtheight;
1340 sprintf(tx->name, "unnamed%i", i);
1341 Con_Printf("warning: unnamed texture in %s, renaming to %s\n", loadmodel->name, tx->name);
1344 if (cls.state != ca_dedicated)
1346 // LordHavoc: HL sky textures are entirely different than quake
1347 if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == 256 && mtheight == 128)
1349 if (loadmodel->isworldmodel)
1351 data = loadimagepixels(tx->name, false, 0, 0);
1354 R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1357 else if (mtdata != NULL)
1358 R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1363 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)
1364 && !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))
1366 // did not find external texture, load it from the bsp or wad3
1367 if (loadmodel->brush.ishlbsp)
1369 // internal texture overrides wad
1370 unsigned char *pixels, *freepixels;
1371 pixels = freepixels = NULL;
1373 pixels = W_ConvertWAD3Texture(dmiptex);
1375 pixels = freepixels = W_GetTexture(tx->name);
1378 tx->width = image_width;
1379 tx->height = image_height;
1380 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);
1383 Mem_Free(freepixels);
1385 else if (mtdata) // texture included
1386 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);
1389 if (tx->skinframes[0].base == NULL)
1394 tx->skinframes[0].base = r_texture_notexture;
1398 tx->basematerialflags = 0;
1399 if (tx->name[0] == '*')
1401 // LordHavoc: some turbulent textures should not be affected by wateralpha
1402 if (strncmp(tx->name,"*lava",5)
1403 && strncmp(tx->name,"*teleport",9)
1404 && strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1405 tx->basematerialflags |= MATERIALFLAG_WATERALPHA;
1406 if (!strncmp(tx->name, "*lava", 5))
1408 tx->supercontents = mod_q1bsp_texture_lava.supercontents;
1409 tx->surfaceflags = mod_q1bsp_texture_lava.surfaceflags;
1411 else if (!strncmp(tx->name, "*slime", 6))
1413 tx->supercontents = mod_q1bsp_texture_slime.supercontents;
1414 tx->surfaceflags = mod_q1bsp_texture_slime.surfaceflags;
1418 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1419 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1421 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES;
1423 else if (tx->name[0] == 's' && tx->name[1] == 'k' && tx->name[2] == 'y')
1425 tx->supercontents = mod_q1bsp_texture_sky.supercontents;
1426 tx->surfaceflags = mod_q1bsp_texture_sky.surfaceflags;
1427 tx->basematerialflags |= MATERIALFLAG_SKY;
1431 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1432 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1433 tx->basematerialflags |= MATERIALFLAG_WALL;
1435 if (tx->skinframes[0].fog)
1436 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT;
1438 // start out with no animation
1439 tx->currentframe = tx;
1442 // sequence the animations
1443 for (i = 0;i < m->nummiptex;i++)
1445 tx = loadmodel->data_textures + i;
1446 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1448 if (tx->anim_total[0] || tx->anim_total[1])
1449 continue; // already sequenced
1451 // find the number of frames in the animation
1452 memset(anims, 0, sizeof(anims));
1453 memset(altanims, 0, sizeof(altanims));
1455 for (j = i;j < m->nummiptex;j++)
1457 tx2 = loadmodel->data_textures + j;
1458 if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
1462 if (num >= '0' && num <= '9')
1463 anims[num - '0'] = tx2;
1464 else if (num >= 'a' && num <= 'j')
1465 altanims[num - 'a'] = tx2;
1467 Con_Printf("Bad animating texture %s\n", tx->name);
1471 for (j = 0;j < 10;j++)
1478 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
1481 for (j = 0;j < max;j++)
1485 Con_Printf("Missing frame %i of %s\n", j, tx->name);
1489 for (j = 0;j < altmax;j++)
1493 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
1502 // if there is no alternate animation, duplicate the primary
1503 // animation into the alternate
1505 for (k = 0;k < 10;k++)
1506 altanims[k] = anims[k];
1509 // link together the primary animation
1510 for (j = 0;j < max;j++)
1513 tx2->animated = true;
1514 tx2->anim_total[0] = max;
1515 tx2->anim_total[1] = altmax;
1516 for (k = 0;k < 10;k++)
1518 tx2->anim_frames[0][k] = anims[k];
1519 tx2->anim_frames[1][k] = altanims[k];
1523 // if there really is an alternate anim...
1524 if (anims[0] != altanims[0])
1526 // link together the alternate animation
1527 for (j = 0;j < altmax;j++)
1530 tx2->animated = true;
1531 // the primary/alternate are reversed here
1532 tx2->anim_total[0] = altmax;
1533 tx2->anim_total[1] = max;
1534 for (k = 0;k < 10;k++)
1536 tx2->anim_frames[0][k] = altanims[k];
1537 tx2->anim_frames[1][k] = anims[k];
1544 static void Mod_Q1BSP_LoadLighting(lump_t *l)
1547 unsigned char *in, *out, *data, d;
1548 char litfilename[MAX_QPATH];
1549 char dlitfilename[MAX_QPATH];
1550 fs_offset_t filesize;
1551 if (loadmodel->brush.ishlbsp) // LordHavoc: load the colored lighting data straight
1553 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1554 for (i=0; i<l->filelen; i++)
1555 loadmodel->brushq1.lightdata[i] = mod_base[l->fileofs+i] >>= 1;
1557 else if (loadmodel->brush.ismcbsp)
1559 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1560 memcpy(loadmodel->brushq1.lightdata, mod_base + l->fileofs, l->filelen);
1562 else // LordHavoc: bsp version 29 (normal white lighting)
1564 // LordHavoc: hope is not lost yet, check for a .lit file to load
1565 strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
1566 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
1567 strlcpy (dlitfilename, litfilename, sizeof (dlitfilename));
1568 strlcat (litfilename, ".lit", sizeof (litfilename));
1569 strlcat (dlitfilename, ".dlit", sizeof (dlitfilename));
1570 data = (unsigned char*) FS_LoadFile(litfilename, tempmempool, false, &filesize);
1573 if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1575 i = LittleLong(((int *)data)[1]);
1578 Con_DPrintf("loaded %s\n", litfilename);
1579 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1580 memcpy(loadmodel->brushq1.lightdata, data + 8, filesize - 8);
1582 data = (unsigned char*) FS_LoadFile(dlitfilename, tempmempool, false, &filesize);
1585 if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1587 i = LittleLong(((int *)data)[1]);
1590 Con_DPrintf("loaded %s\n", dlitfilename);
1591 loadmodel->brushq1.nmaplightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1592 memcpy(loadmodel->brushq1.nmaplightdata, data + 8, filesize - 8);
1593 loadmodel->brushq3.deluxemapping_modelspace = false;
1594 loadmodel->brushq3.deluxemapping = true;
1603 Con_Printf("Unknown .lit file version (%d)\n", i);
1605 else if (filesize == 8)
1606 Con_Print("Empty .lit file, ignoring\n");
1608 Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", (int) filesize, (int) (8 + l->filelen * 3));
1615 // LordHavoc: oh well, expand the white lighting data
1618 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen*3);
1619 in = mod_base + l->fileofs;
1620 out = loadmodel->brushq1.lightdata;
1621 for (i = 0;i < l->filelen;i++)
1631 static void Mod_Q1BSP_LoadVisibility(lump_t *l)
1633 loadmodel->brushq1.num_compressedpvs = 0;
1634 loadmodel->brushq1.data_compressedpvs = NULL;
1637 loadmodel->brushq1.num_compressedpvs = l->filelen;
1638 loadmodel->brushq1.data_compressedpvs = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1639 memcpy(loadmodel->brushq1.data_compressedpvs, mod_base + l->fileofs, l->filelen);
1642 // used only for HalfLife maps
1643 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
1645 char key[128], value[4096];
1650 if (!COM_ParseTokenConsole(&data))
1652 if (com_token[0] != '{')
1656 if (!COM_ParseTokenConsole(&data))
1658 if (com_token[0] == '}')
1659 break; // end of worldspawn
1660 if (com_token[0] == '_')
1661 strlcpy(key, com_token + 1, sizeof(key));
1663 strlcpy(key, com_token, sizeof(key));
1664 while (key[strlen(key)-1] == ' ') // remove trailing spaces
1665 key[strlen(key)-1] = 0;
1666 if (!COM_ParseTokenConsole(&data))
1668 dpsnprintf(value, sizeof(value), "%s", com_token);
1669 if (!strcmp("wad", key)) // for HalfLife maps
1671 if (loadmodel->brush.ishlbsp)
1674 for (i = 0;i < (int)sizeof(value);i++)
1675 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
1679 for (;i < (int)sizeof(value);i++)
1681 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
1682 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
1684 else if (value[i] == ';' || value[i] == 0)
1688 strlcpy(wadname, "textures/", sizeof(wadname));
1689 strlcat(wadname, &value[j], sizeof(wadname));
1690 W_LoadTextureWadFile(wadname, false);
1702 static void Mod_Q1BSP_LoadEntities(lump_t *l)
1704 loadmodel->brush.entities = NULL;
1707 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1708 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
1709 if (loadmodel->brush.ishlbsp)
1710 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
1714 static void Mod_Q1BSP_LoadVertexes(lump_t *l)
1720 in = (dvertex_t *)(mod_base + l->fileofs);
1721 if (l->filelen % sizeof(*in))
1722 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
1723 count = l->filelen / sizeof(*in);
1724 out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1726 loadmodel->brushq1.vertexes = out;
1727 loadmodel->brushq1.numvertexes = count;
1729 for ( i=0 ; i<count ; i++, in++, out++)
1731 out->position[0] = LittleFloat(in->point[0]);
1732 out->position[1] = LittleFloat(in->point[1]);
1733 out->position[2] = LittleFloat(in->point[2]);
1737 // The following two functions should be removed and MSG_* or SZ_* function sets adjusted so they
1738 // can be used for this
1740 int SB_ReadInt (unsigned char **buffer)
1743 i = ((*buffer)[0]) + 256*((*buffer)[1]) + 65536*((*buffer)[2]) + 16777216*((*buffer)[3]);
1749 float SB_ReadFloat (unsigned char **buffer)
1757 u.i = SB_ReadInt (buffer);
1761 static void Mod_Q1BSP_LoadSubmodels(lump_t *l, hullinfo_t *hullinfo)
1763 unsigned char *index;
1767 index = (unsigned char *)(mod_base + l->fileofs);
1768 if (l->filelen % (48+4*hullinfo->filehulls))
1769 Host_Error ("Mod_Q1BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
1771 count = l->filelen / (48+4*hullinfo->filehulls);
1772 out = (dmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
1774 loadmodel->brushq1.submodels = out;
1775 loadmodel->brush.numsubmodels = count;
1777 for (i = 0; i < count; i++, out++)
1779 // spread out the mins / maxs by a pixel
1780 out->mins[0] = SB_ReadFloat (&index) - 1;
1781 out->mins[1] = SB_ReadFloat (&index) - 1;
1782 out->mins[2] = SB_ReadFloat (&index) - 1;
1783 out->maxs[0] = SB_ReadFloat (&index) + 1;
1784 out->maxs[1] = SB_ReadFloat (&index) + 1;
1785 out->maxs[2] = SB_ReadFloat (&index) + 1;
1786 out->origin[0] = SB_ReadFloat (&index);
1787 out->origin[1] = SB_ReadFloat (&index);
1788 out->origin[2] = SB_ReadFloat (&index);
1789 for (j = 0; j < hullinfo->filehulls; j++)
1790 out->headnode[j] = SB_ReadInt (&index);
1791 out->visleafs = SB_ReadInt (&index);
1792 out->firstface = SB_ReadInt (&index);
1793 out->numfaces = SB_ReadInt (&index);
1797 static void Mod_Q1BSP_LoadEdges(lump_t *l)
1803 in = (dedge_t *)(mod_base + l->fileofs);
1804 if (l->filelen % sizeof(*in))
1805 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
1806 count = l->filelen / sizeof(*in);
1807 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1809 loadmodel->brushq1.edges = out;
1810 loadmodel->brushq1.numedges = count;
1812 for ( i=0 ; i<count ; i++, in++, out++)
1814 out->v[0] = (unsigned short)LittleShort(in->v[0]);
1815 out->v[1] = (unsigned short)LittleShort(in->v[1]);
1816 if (out->v[0] >= loadmodel->brushq1.numvertexes || out->v[1] >= loadmodel->brushq1.numvertexes)
1818 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);
1825 static void Mod_Q1BSP_LoadTexinfo(lump_t *l)
1829 int i, j, k, count, miptex;
1831 in = (texinfo_t *)(mod_base + l->fileofs);
1832 if (l->filelen % sizeof(*in))
1833 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
1834 count = l->filelen / sizeof(*in);
1835 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1837 loadmodel->brushq1.texinfo = out;
1838 loadmodel->brushq1.numtexinfo = count;
1840 for (i = 0;i < count;i++, in++, out++)
1842 for (k = 0;k < 2;k++)
1843 for (j = 0;j < 4;j++)
1844 out->vecs[k][j] = LittleFloat(in->vecs[k][j]);
1846 miptex = LittleLong(in->miptex);
1847 out->flags = LittleLong(in->flags);
1849 out->texture = NULL;
1850 if (loadmodel->data_textures)
1852 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
1853 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
1855 out->texture = loadmodel->data_textures + miptex;
1857 if (out->flags & TEX_SPECIAL)
1859 // if texture chosen is NULL or the shader needs a lightmap,
1860 // force to notexture water shader
1861 if (out->texture == NULL || out->texture->basematerialflags & MATERIALFLAG_WALL)
1862 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 1);
1866 // if texture chosen is NULL, force to notexture
1867 if (out->texture == NULL)
1868 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 2);
1874 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
1879 mins[0] = mins[1] = mins[2] = 9999;
1880 maxs[0] = maxs[1] = maxs[2] = -9999;
1882 for (i = 0;i < numverts;i++)
1884 for (j = 0;j < 3;j++, v++)
1894 #define MAX_SUBDIVPOLYTRIANGLES 4096
1895 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
1897 static int subdivpolyverts, subdivpolytriangles;
1898 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
1899 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
1901 static int subdivpolylookupvert(vec3_t v)
1904 for (i = 0;i < subdivpolyverts;i++)
1905 if (subdivpolyvert[i][0] == v[0]
1906 && subdivpolyvert[i][1] == v[1]
1907 && subdivpolyvert[i][2] == v[2])
1909 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
1910 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
1911 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
1912 return subdivpolyverts++;
1915 static void SubdividePolygon(int numverts, float *verts)
1917 int i, i1, i2, i3, f, b, c, p;
1918 vec3_t mins, maxs, front[256], back[256];
1919 float m, *pv, *cv, dist[256], frac;
1922 Host_Error("SubdividePolygon: ran out of verts in buffer");
1924 BoundPoly(numverts, verts, mins, maxs);
1926 for (i = 0;i < 3;i++)
1928 m = (mins[i] + maxs[i]) * 0.5;
1929 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
1930 if (maxs[i] - m < 8)
1932 if (m - mins[i] < 8)
1936 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
1937 dist[c] = cv[i] - m;
1940 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
1944 VectorCopy(pv, front[f]);
1949 VectorCopy(pv, back[b]);
1952 if (dist[p] == 0 || dist[c] == 0)
1954 if ((dist[p] > 0) != (dist[c] > 0) )
1957 frac = dist[p] / (dist[p] - dist[c]);
1958 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
1959 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
1960 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
1966 SubdividePolygon(f, front[0]);
1967 SubdividePolygon(b, back[0]);
1971 i1 = subdivpolylookupvert(verts);
1972 i2 = subdivpolylookupvert(verts + 3);
1973 for (i = 2;i < numverts;i++)
1975 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
1977 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
1981 i3 = subdivpolylookupvert(verts + i * 3);
1982 subdivpolyindex[subdivpolytriangles][0] = i1;
1983 subdivpolyindex[subdivpolytriangles][1] = i2;
1984 subdivpolyindex[subdivpolytriangles][2] = i3;
1986 subdivpolytriangles++;
1990 //Breaks a polygon up along axial 64 unit
1991 //boundaries so that turbulent and sky warps
1992 //can be done reasonably.
1993 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
1999 subdivpolytriangles = 0;
2000 subdivpolyverts = 0;
2001 SubdividePolygon(surface->num_vertices, (surface->mesh->data_vertex3f + 3 * surface->num_firstvertex));
2002 if (subdivpolytriangles < 1)
2003 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?");
2005 surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
2006 mesh->num_vertices = subdivpolyverts;
2007 mesh->num_triangles = subdivpolytriangles;
2008 mesh->vertex = (surfvertex_t *)(mesh + 1);
2009 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
2010 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
2012 for (i = 0;i < mesh->num_triangles;i++)
2013 for (j = 0;j < 3;j++)
2014 mesh->index[i*3+j] = subdivpolyindex[i][j];
2016 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
2018 VectorCopy(subdivpolyvert[i], v->v);
2019 v->st[0] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[0]);
2020 v->st[1] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[1]);
2025 static qboolean Mod_Q1BSP_AllocLightmapBlock(int *lineused, int totalwidth, int totalheight, int blockwidth, int blockheight, int *outx, int *outy)
2028 int bestx = totalwidth, besty = 0;
2029 // find the left-most space we can find
2030 for (y = 0;y <= totalheight - blockheight;y++)
2033 for (y2 = 0;y2 < blockheight;y2++)
2034 x2 = max(x2, lineused[y+y2]);
2041 // if the best was not good enough, return failure
2042 if (bestx > totalwidth - blockwidth)
2044 // we found a good spot
2049 // now mark the space used
2050 for (y2 = 0;y2 < blockheight;y2++)
2051 lineused[besty+y2] = bestx + blockwidth;
2056 static void Mod_Q1BSP_LoadFaces(lump_t *l)
2059 msurface_t *surface;
2060 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber;
2061 float texmins[2], texmaxs[2], val, lightmaptexcoordscale;
2062 #define LIGHTMAPSIZE 256
2063 rtexture_t *lightmaptexture, *deluxemaptexture;
2064 int lightmap_lineused[LIGHTMAPSIZE];
2066 in = (dface_t *)(mod_base + l->fileofs);
2067 if (l->filelen % sizeof(*in))
2068 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
2069 count = l->filelen / sizeof(*in);
2070 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
2071 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
2073 loadmodel->num_surfaces = count;
2077 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs);surfacenum < count;surfacenum++, in++)
2079 numedges = LittleShort(in->numedges);
2080 totalverts += numedges;
2081 totaltris += numedges - 2;
2084 Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false, false);
2086 lightmaptexture = NULL;
2087 deluxemaptexture = r_texture_blanknormalmap;
2089 lightmaptexcoordscale = 1.0f / (float)LIGHTMAPSIZE;
2093 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs), surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, in++, surface++)
2095 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
2097 // FIXME: validate edges, texinfo, etc?
2098 firstedge = LittleLong(in->firstedge);
2099 numedges = LittleShort(in->numedges);
2100 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)
2101 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)", firstedge, numedges, loadmodel->brushq1.numsurfedges);
2102 i = LittleShort(in->texinfo);
2103 if ((unsigned int) i >= (unsigned int) loadmodel->brushq1.numtexinfo)
2104 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)", i, loadmodel->brushq1.numtexinfo);
2105 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + i;
2106 surface->texture = surface->lightmapinfo->texinfo->texture;
2108 planenum = LittleShort(in->planenum);
2109 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
2110 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)", planenum, loadmodel->brush.num_planes);
2112 //surface->flags = surface->texture->flags;
2113 //if (LittleShort(in->side))
2114 // surface->flags |= SURF_PLANEBACK;
2115 //surface->plane = loadmodel->brush.data_planes + planenum;
2117 surface->num_firstvertex = totalverts;
2118 surface->num_vertices = numedges;
2119 surface->num_firsttriangle = totaltris;
2120 surface->num_triangles = numedges - 2;
2121 totalverts += numedges;
2122 totaltris += numedges - 2;
2124 // convert edges back to a normal polygon
2125 for (i = 0;i < surface->num_vertices;i++)
2127 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
2130 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2132 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2133 s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2134 t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2135 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
2136 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
2137 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
2138 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
2139 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
2142 for (i = 0;i < surface->num_triangles;i++)
2144 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
2145 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
2146 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
2149 // compile additional data about the surface geometry
2150 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);
2151 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);
2152 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
2154 // generate surface extents information
2155 texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2156 texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2157 for (i = 1;i < surface->num_vertices;i++)
2159 for (j = 0;j < 2;j++)
2161 val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
2162 texmins[j] = min(texmins[j], val);
2163 texmaxs[j] = max(texmaxs[j], val);
2166 for (i = 0;i < 2;i++)
2168 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
2169 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
2172 smax = surface->lightmapinfo->extents[0] >> 4;
2173 tmax = surface->lightmapinfo->extents[1] >> 4;
2174 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2175 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2178 for (i = 0;i < MAXLIGHTMAPS;i++)
2179 surface->lightmapinfo->styles[i] = in->styles[i];
2180 surface->lightmaptexture = NULL;
2181 surface->deluxemaptexture = r_texture_blanknormalmap;
2182 i = LittleLong(in->lightofs);
2185 surface->lightmapinfo->samples = NULL;
2186 // give non-lightmapped water a 1x white lightmap
2187 if ((surface->texture->basematerialflags & MATERIALFLAG_WATER) && (surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
2189 surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2190 surface->lightmapinfo->styles[0] = 0;
2191 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
2194 else if (loadmodel->brush.ishlbsp) // LordHavoc: HalfLife map (bsp version 30)
2195 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + i;
2196 else // LordHavoc: white lighting (bsp version 29)
2198 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (i * 3);
2199 if (loadmodel->brushq1.nmaplightdata)
2200 surface->lightmapinfo->nmapsamples = loadmodel->brushq1.nmaplightdata + (i * 3);
2203 // check if we should apply a lightmap to this
2204 if (!(surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
2206 int i, iu, iv, lightmapx, lightmapy;
2207 float u, v, ubase, vbase, uscale, vscale;
2209 if (ssize > 256 || tsize > 256)
2210 Host_Error("Bad surface extents");
2211 // force lightmap upload on first time seeing the surface
2212 surface->cached_dlight = true;
2213 // stainmap for permanent marks on walls
2214 surface->lightmapinfo->stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2216 memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
2218 // find a place for this lightmap
2219 if (!lightmaptexture || !Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, LIGHTMAPSIZE, LIGHTMAPSIZE, ssize, tsize, &lightmapx, &lightmapy))
2221 // could not find room, make a new lightmap
2222 lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%i", lightmapnumber), LIGHTMAPSIZE, LIGHTMAPSIZE, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2223 if (loadmodel->brushq1.nmaplightdata)
2224 deluxemaptexture = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%i", lightmapnumber), LIGHTMAPSIZE, LIGHTMAPSIZE, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2226 memset(lightmap_lineused, 0, sizeof(lightmap_lineused));
2227 Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, LIGHTMAPSIZE, LIGHTMAPSIZE, ssize, tsize, &lightmapx, &lightmapy);
2230 surface->lightmaptexture = lightmaptexture;
2231 surface->deluxemaptexture = deluxemaptexture;
2232 surface->lightmapinfo->lightmaporigin[0] = lightmapx;
2233 surface->lightmapinfo->lightmaporigin[1] = lightmapy;
2235 ubase = lightmapx * lightmaptexcoordscale;
2236 vbase = lightmapy * lightmaptexcoordscale;
2237 uscale = lightmaptexcoordscale;
2238 vscale = lightmaptexcoordscale;
2240 for (i = 0;i < surface->num_vertices;i++)
2242 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);
2243 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);
2244 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
2245 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
2246 // LordHavoc: calc lightmap data offset for vertex lighting to use
2249 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
2255 static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
2258 // Host_Error("Mod_Q1BSP_LoadNodes_RecursiveSetParent: runaway recursion");
2259 node->parent = parent;
2262 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
2263 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
2267 static void Mod_Q1BSP_LoadNodes(lump_t *l)
2273 in = (dnode_t *)(mod_base + l->fileofs);
2274 if (l->filelen % sizeof(*in))
2275 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
2276 count = l->filelen / sizeof(*in);
2277 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2279 loadmodel->brush.data_nodes = out;
2280 loadmodel->brush.num_nodes = count;
2282 for ( i=0 ; i<count ; i++, in++, out++)
2284 for (j=0 ; j<3 ; j++)
2286 out->mins[j] = LittleShort(in->mins[j]);
2287 out->maxs[j] = LittleShort(in->maxs[j]);
2290 p = LittleLong(in->planenum);
2291 out->plane = loadmodel->brush.data_planes + p;
2293 out->firstsurface = LittleShort(in->firstface);
2294 out->numsurfaces = LittleShort(in->numfaces);
2296 for (j=0 ; j<2 ; j++)
2298 p = LittleShort(in->children[j]);
2300 out->children[j] = loadmodel->brush.data_nodes + p;
2302 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + (-1 - p));
2306 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
2309 static void Mod_Q1BSP_LoadLeafs(lump_t *l)
2315 in = (dleaf_t *)(mod_base + l->fileofs);
2316 if (l->filelen % sizeof(*in))
2317 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2318 count = l->filelen / sizeof(*in);
2319 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2321 loadmodel->brush.data_leafs = out;
2322 loadmodel->brush.num_leafs = count;
2323 // get visleafs from the submodel data
2324 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2325 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2326 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2327 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2329 for ( i=0 ; i<count ; i++, in++, out++)
2331 for (j=0 ; j<3 ; j++)
2333 out->mins[j] = LittleShort(in->mins[j]);
2334 out->maxs[j] = LittleShort(in->maxs[j]);
2337 // FIXME: this function could really benefit from some error checking
2339 out->contents = LittleLong(in->contents);
2341 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + LittleShort(in->firstmarksurface);
2342 out->numleafsurfaces = LittleShort(in->nummarksurfaces);
2343 if (out->firstleafsurface < 0 || LittleShort(in->firstmarksurface) + out->numleafsurfaces > loadmodel->brush.num_leafsurfaces)
2345 Con_Printf("Mod_Q1BSP_LoadLeafs: invalid leafsurface range %i:%i outside range %i:%i\n", (int)(out->firstleafsurface - loadmodel->brush.data_leafsurfaces), (int)(out->firstleafsurface + out->numleafsurfaces - loadmodel->brush.data_leafsurfaces), 0, loadmodel->brush.num_leafsurfaces);
2346 out->firstleafsurface = NULL;
2347 out->numleafsurfaces = 0;
2350 out->clusterindex = i - 1;
2351 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
2352 out->clusterindex = -1;
2354 p = LittleLong(in->visofs);
2355 // ignore visofs errors on leaf 0 (solid)
2356 if (p >= 0 && out->clusterindex >= 0)
2358 if (p >= loadmodel->brushq1.num_compressedpvs)
2359 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
2361 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);
2364 for (j = 0;j < 4;j++)
2365 out->ambient_sound_level[j] = in->ambient_level[j];
2367 // FIXME: Insert caustics here
2371 qboolean Mod_Q1BSP_CheckWaterAlphaSupport(void)
2375 const unsigned char *pvs;
2376 // check all liquid leafs to see if they can see into empty leafs, if any
2377 // can we can assume this map supports r_wateralpha
2378 for (i = 0, leaf = loadmodel->brush.data_leafs;i < loadmodel->brush.num_leafs;i++, leaf++)
2380 if ((leaf->contents == CONTENTS_WATER || leaf->contents == CONTENTS_SLIME) && (leaf->clusterindex >= 0 && loadmodel->brush.data_pvsclusters))
2382 pvs = loadmodel->brush.data_pvsclusters + leaf->clusterindex * loadmodel->brush.num_pvsclusterbytes;
2383 for (j = 0;j < loadmodel->brush.num_leafs;j++)
2384 if (leaf->contents == CONTENTS_EMPTY && CHECKPVSBIT(pvs, loadmodel->brush.data_leafs[j].clusterindex))
2391 static void Mod_Q1BSP_LoadClipnodes(lump_t *l, hullinfo_t *hullinfo)
2393 dclipnode_t *in, *out;
2397 in = (dclipnode_t *)(mod_base + l->fileofs);
2398 if (l->filelen % sizeof(*in))
2399 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
2400 count = l->filelen / sizeof(*in);
2401 out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2403 loadmodel->brushq1.clipnodes = out;
2404 loadmodel->brushq1.numclipnodes = count;
2406 for (i = 1; i < hullinfo->numhulls; i++)
2408 hull = &loadmodel->brushq1.hulls[i];
2409 hull->clipnodes = out;
2410 hull->firstclipnode = 0;
2411 hull->lastclipnode = count-1;
2412 hull->planes = loadmodel->brush.data_planes;
2413 hull->clip_mins[0] = hullinfo->hullsizes[i][0][0];
2414 hull->clip_mins[1] = hullinfo->hullsizes[i][0][1];
2415 hull->clip_mins[2] = hullinfo->hullsizes[i][0][2];
2416 hull->clip_maxs[0] = hullinfo->hullsizes[i][1][0];
2417 hull->clip_maxs[1] = hullinfo->hullsizes[i][1][1];
2418 hull->clip_maxs[2] = hullinfo->hullsizes[i][1][2];
2419 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2422 for (i=0 ; i<count ; i++, out++, in++)
2424 out->planenum = LittleLong(in->planenum);
2425 out->children[0] = LittleShort(in->children[0]);
2426 out->children[1] = LittleShort(in->children[1]);
2427 if (out->planenum < 0 || out->planenum >= loadmodel->brush.num_planes)
2428 Host_Error("Corrupt clipping hull(out of range planenum)");
2429 if (out->children[0] >= count || out->children[1] >= count)
2430 Host_Error("Corrupt clipping hull(out of range child)");
2434 //Duplicate the drawing hull structure as a clipping hull
2435 static void Mod_Q1BSP_MakeHull0(void)
2442 hull = &loadmodel->brushq1.hulls[0];
2444 in = loadmodel->brush.data_nodes;
2445 out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(dclipnode_t));
2447 hull->clipnodes = out;
2448 hull->firstclipnode = 0;
2449 hull->lastclipnode = loadmodel->brush.num_nodes - 1;
2450 hull->planes = loadmodel->brush.data_planes;
2452 for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
2454 out->planenum = in->plane - loadmodel->brush.data_planes;
2455 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
2456 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
2460 static void Mod_Q1BSP_LoadLeaffaces(lump_t *l)
2465 in = (short *)(mod_base + l->fileofs);
2466 if (l->filelen % sizeof(*in))
2467 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
2468 loadmodel->brush.num_leafsurfaces = l->filelen / sizeof(*in);
2469 loadmodel->brush.data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
2471 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
2473 j = (unsigned) LittleShort(in[i]);
2474 if (j >= loadmodel->num_surfaces)
2475 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
2476 loadmodel->brush.data_leafsurfaces[i] = j;
2480 static void Mod_Q1BSP_LoadSurfedges(lump_t *l)
2485 in = (int *)(mod_base + l->fileofs);
2486 if (l->filelen % sizeof(*in))
2487 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
2488 loadmodel->brushq1.numsurfedges = l->filelen / sizeof(*in);
2489 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
2491 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
2492 loadmodel->brushq1.surfedges[i] = LittleLong(in[i]);
2496 static void Mod_Q1BSP_LoadPlanes(lump_t *l)
2502 in = (dplane_t *)(mod_base + l->fileofs);
2503 if (l->filelen % sizeof(*in))
2504 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
2506 loadmodel->brush.num_planes = l->filelen / sizeof(*in);
2507 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
2509 for (i = 0;i < loadmodel->brush.num_planes;i++, in++, out++)
2511 out->normal[0] = LittleFloat(in->normal[0]);
2512 out->normal[1] = LittleFloat(in->normal[1]);
2513 out->normal[2] = LittleFloat(in->normal[2]);
2514 out->dist = LittleFloat(in->dist);
2520 static void Mod_Q1BSP_LoadMapBrushes(void)
2524 int submodel, numbrushes;
2525 qboolean firstbrush;
2526 char *text, *maptext;
2527 char mapfilename[MAX_QPATH];
2528 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
2529 strlcat (mapfilename, ".map", sizeof (mapfilename));
2530 maptext = (unsigned char*) FS_LoadFile(mapfilename, tempmempool, false, NULL);
2534 if (!COM_ParseTokenConsole(&data))
2539 if (!COM_ParseTokenConsole(&data))
2541 if (com_token[0] != '{')
2547 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
2550 if (!COM_ParseTokenConsole(&data))
2552 if (com_token[0] == '}')
2553 break; // end of entity
2554 if (com_token[0] == '{')
2561 if (submodel > loadmodel->brush.numsubmodels)
2563 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
2567 model = loadmodel->brush.submodels[submodel];
2574 if (!COM_ParseTokenConsole(&data))
2576 if (com_token[0] == '}')
2577 break; // end of brush
2578 // each brush face should be this format:
2579 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
2580 // FIXME: support hl .map format
2581 for (pointnum = 0;pointnum < 3;pointnum++)
2583 COM_ParseTokenConsole(&data);
2584 for (componentnum = 0;componentnum < 3;componentnum++)
2586 COM_ParseTokenConsole(&data);
2587 point[pointnum][componentnum] = atof(com_token);
2589 COM_ParseTokenConsole(&data);
2591 COM_ParseTokenConsole(&data);
2592 strlcpy(facetexture, com_token, sizeof(facetexture));
2593 COM_ParseTokenConsole(&data);
2594 //scroll_s = atof(com_token);
2595 COM_ParseTokenConsole(&data);
2596 //scroll_t = atof(com_token);
2597 COM_ParseTokenConsole(&data);
2598 //rotate = atof(com_token);
2599 COM_ParseTokenConsole(&data);
2600 //scale_s = atof(com_token);
2601 COM_ParseTokenConsole(&data);
2602 //scale_t = atof(com_token);
2603 TriangleNormal(point[0], point[1], point[2], planenormal);
2604 VectorNormalizeDouble(planenormal);
2605 planedist = DotProduct(point[0], planenormal);
2606 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
2616 #define MAX_PORTALPOINTS 64
2618 typedef struct portal_s
2621 mnode_t *nodes[2]; // [0] = front side of plane
2622 struct portal_s *next[2];
2624 double points[3*MAX_PORTALPOINTS];
2625 struct portal_s *chain; // all portals are linked into a list
2629 static portal_t *portalchain;
2636 static portal_t *AllocPortal(void)
2639 p = (portal_t *)Mem_Alloc(loadmodel->mempool, sizeof(portal_t));
2640 p->chain = portalchain;
2645 static void FreePortal(portal_t *p)
2650 static void Mod_Q1BSP_RecursiveRecalcNodeBBox(mnode_t *node)
2652 // process only nodes (leafs already had their box calculated)
2656 // calculate children first
2657 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[0]);
2658 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[1]);
2660 // make combined bounding box from children
2661 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
2662 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
2663 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
2664 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
2665 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
2666 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
2669 static void Mod_Q1BSP_FinalizePortals(void)
2671 int i, j, numportals, numpoints;
2672 portal_t *p, *pnext;
2675 mleaf_t *leaf, *endleaf;
2677 // tally up portal and point counts and recalculate bounding boxes for all
2678 // leafs (because qbsp is very sloppy)
2679 leaf = loadmodel->brush.data_leafs;
2680 endleaf = leaf + loadmodel->brush.num_leafs;
2681 for (;leaf < endleaf;leaf++)
2683 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
2684 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
2691 // note: this check must match the one below or it will usually corrupt memory
2692 // 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
2693 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2696 numpoints += p->numpoints * 2;
2700 loadmodel->brush.data_portals = (mportal_t *)Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
2701 loadmodel->brush.num_portals = numportals;
2702 loadmodel->brush.data_portalpoints = (mvertex_t *)((unsigned char *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
2703 loadmodel->brush.num_portalpoints = numpoints;
2704 // clear all leaf portal chains
2705 for (i = 0;i < loadmodel->brush.num_leafs;i++)
2706 loadmodel->brush.data_leafs[i].portals = NULL;
2707 // process all portals in the global portal chain, while freeing them
2708 portal = loadmodel->brush.data_portals;
2709 point = loadmodel->brush.data_portalpoints;
2716 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1])
2718 // note: this check must match the one above or it will usually corrupt memory
2719 // 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
2720 if (((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2722 // first make the back to front portal(forward portal)
2723 portal->points = point;
2724 portal->numpoints = p->numpoints;
2725 portal->plane.dist = p->plane.dist;
2726 VectorCopy(p->plane.normal, portal->plane.normal);
2727 portal->here = (mleaf_t *)p->nodes[1];
2728 portal->past = (mleaf_t *)p->nodes[0];
2730 for (j = 0;j < portal->numpoints;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 // then make the front to back portal(backward portal)
2746 portal->points = point;
2747 portal->numpoints = p->numpoints;
2748 portal->plane.dist = -p->plane.dist;
2749 VectorNegate(p->plane.normal, portal->plane.normal);
2750 portal->here = (mleaf_t *)p->nodes[0];
2751 portal->past = (mleaf_t *)p->nodes[1];
2753 for (j = portal->numpoints - 1;j >= 0;j--)
2755 VectorCopy(p->points + j*3, point->position);
2758 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2759 PlaneClassify(&portal->plane);
2761 // link into leaf's portal chain
2762 portal->next = portal->here->portals;
2763 portal->here->portals = portal;
2765 // advance to next portal
2768 // add the portal's polygon points to the leaf bounding boxes
2769 for (i = 0;i < 2;i++)
2771 leaf = (mleaf_t *)p->nodes[i];
2772 for (j = 0;j < p->numpoints;j++)
2774 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
2775 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
2776 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
2777 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
2778 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
2779 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
2786 // now recalculate the node bounding boxes from the leafs
2787 Mod_Q1BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes);
2795 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
2798 Host_Error("AddPortalToNodes: NULL front node");
2800 Host_Error("AddPortalToNodes: NULL back node");
2801 if (p->nodes[0] || p->nodes[1])
2802 Host_Error("AddPortalToNodes: already included");
2803 // 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
2805 p->nodes[0] = front;
2806 p->next[0] = (portal_t *)front->portals;
2807 front->portals = (mportal_t *)p;
2810 p->next[1] = (portal_t *)back->portals;
2811 back->portals = (mportal_t *)p;
2816 RemovePortalFromNode
2819 static void RemovePortalFromNodes(portal_t *portal)
2823 void **portalpointer;
2825 for (i = 0;i < 2;i++)
2827 node = portal->nodes[i];
2829 portalpointer = (void **) &node->portals;
2832 t = (portal_t *)*portalpointer;
2834 Host_Error("RemovePortalFromNodes: portal not in leaf");
2838 if (portal->nodes[0] == node)
2840 *portalpointer = portal->next[0];
2841 portal->nodes[0] = NULL;
2843 else if (portal->nodes[1] == node)
2845 *portalpointer = portal->next[1];
2846 portal->nodes[1] = NULL;
2849 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2853 if (t->nodes[0] == node)
2854 portalpointer = (void **) &t->next[0];
2855 else if (t->nodes[1] == node)
2856 portalpointer = (void **) &t->next[1];
2858 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2863 #define PORTAL_DIST_EPSILON (1.0 / 32.0)
2864 static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
2867 mnode_t *front, *back, *other_node;
2868 mplane_t clipplane, *plane;
2869 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
2870 int numfrontpoints, numbackpoints;
2871 double frontpoints[3*MAX_PORTALPOINTS], backpoints[3*MAX_PORTALPOINTS];
2873 // if a leaf, we're done
2877 plane = node->plane;
2879 front = node->children[0];
2880 back = node->children[1];
2882 Host_Error("Mod_Q1BSP_RecursiveNodePortals: corrupt node hierarchy");
2884 // create the new portal by generating a polygon for the node plane,
2885 // and clipping it by all of the other portals(which came from nodes above this one)
2886 nodeportal = AllocPortal();
2887 nodeportal->plane = *plane;
2889 // 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)
2890 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);
2891 nodeportal->numpoints = 4;
2892 side = 0; // shut up compiler warning
2893 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
2895 clipplane = portal->plane;
2896 if (portal->nodes[0] == portal->nodes[1])
2897 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(1)");
2898 if (portal->nodes[0] == node)
2900 else if (portal->nodes[1] == node)
2902 clipplane.dist = -clipplane.dist;
2903 VectorNegate(clipplane.normal, clipplane.normal);
2907 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2909 for (i = 0;i < nodeportal->numpoints*3;i++)
2910 frontpoints[i] = nodeportal->points[i];
2911 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);
2912 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
2916 if (nodeportal->numpoints < 3)
2918 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
2919 nodeportal->numpoints = 0;
2921 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
2923 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
2924 nodeportal->numpoints = 0;
2927 AddPortalToNodes(nodeportal, front, back);
2929 // split the portals of this node along this node's plane and assign them to the children of this node
2930 // (migrating the portals downward through the tree)
2931 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
2933 if (portal->nodes[0] == portal->nodes[1])
2934 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(2)");
2935 if (portal->nodes[0] == node)
2937 else if (portal->nodes[1] == node)
2940 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2941 nextportal = portal->next[side];
2942 if (!portal->numpoints)
2945 other_node = portal->nodes[!side];
2946 RemovePortalFromNodes(portal);
2948 // cut the portal into two portals, one on each side of the node plane
2949 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);
2951 if (!numfrontpoints)
2954 AddPortalToNodes(portal, back, other_node);
2956 AddPortalToNodes(portal, other_node, back);
2962 AddPortalToNodes(portal, front, other_node);
2964 AddPortalToNodes(portal, other_node, front);
2968 // the portal is split
2969 splitportal = AllocPortal();
2970 temp = splitportal->chain;
2971 *splitportal = *portal;
2972 splitportal->chain = temp;
2973 for (i = 0;i < numbackpoints*3;i++)
2974 splitportal->points[i] = backpoints[i];
2975 splitportal->numpoints = numbackpoints;
2976 for (i = 0;i < numfrontpoints*3;i++)
2977 portal->points[i] = frontpoints[i];
2978 portal->numpoints = numfrontpoints;
2982 AddPortalToNodes(portal, front, other_node);
2983 AddPortalToNodes(splitportal, back, other_node);
2987 AddPortalToNodes(portal, other_node, front);
2988 AddPortalToNodes(splitportal, other_node, back);
2992 Mod_Q1BSP_RecursiveNodePortals(front);
2993 Mod_Q1BSP_RecursiveNodePortals(back);
2996 static void Mod_Q1BSP_MakePortals(void)
2999 Mod_Q1BSP_RecursiveNodePortals(loadmodel->brush.data_nodes);
3000 Mod_Q1BSP_FinalizePortals();
3003 static void Mod_Q1BSP_BuildLightmapUpdateChains(mempool_t *mempool, model_t *model)
3005 int i, j, stylecounts[256], totalcount, remapstyles[256];
3006 msurface_t *surface;
3007 memset(stylecounts, 0, sizeof(stylecounts));
3008 for (i = 0;i < model->nummodelsurfaces;i++)
3010 surface = model->data_surfaces + model->firstmodelsurface + i;
3011 for (j = 0;j < MAXLIGHTMAPS;j++)
3012 stylecounts[surface->lightmapinfo->styles[j]]++;
3015 model->brushq1.light_styles = 0;
3016 for (i = 0;i < 255;i++)
3020 remapstyles[i] = model->brushq1.light_styles++;
3021 totalcount += stylecounts[i] + 1;
3026 model->brushq1.light_style = (unsigned char *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(unsigned char));
3027 model->brushq1.light_stylevalue = (int *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(int));
3028 model->brushq1.light_styleupdatechains = (msurface_t ***)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(msurface_t **));
3029 model->brushq1.light_styleupdatechainsbuffer = (msurface_t **)Mem_Alloc(mempool, totalcount * sizeof(msurface_t *));
3030 model->brushq1.light_styles = 0;
3031 for (i = 0;i < 255;i++)
3033 model->brushq1.light_style[model->brushq1.light_styles++] = i;
3035 for (i = 0;i < model->brushq1.light_styles;i++)
3037 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
3038 j += stylecounts[model->brushq1.light_style[i]] + 1;
3040 for (i = 0;i < model->nummodelsurfaces;i++)
3042 surface = model->data_surfaces + model->firstmodelsurface + i;
3043 for (j = 0;j < MAXLIGHTMAPS;j++)
3044 if (surface->lightmapinfo->styles[j] != 255)
3045 *model->brushq1.light_styleupdatechains[remapstyles[surface->lightmapinfo->styles[j]]]++ = surface;
3048 for (i = 0;i < model->brushq1.light_styles;i++)
3050 *model->brushq1.light_styleupdatechains[i] = NULL;
3051 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
3052 j += stylecounts[model->brushq1.light_style[i]] + 1;
3056 //Returns PVS data for a given point
3057 //(note: can return NULL)
3058 static unsigned char *Mod_Q1BSP_GetPVS(model_t *model, const vec3_t p)
3061 node = model->brush.data_nodes;
3063 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
3064 if (((mleaf_t *)node)->clusterindex >= 0)
3065 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3070 static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
3074 float d = PlaneDiff(org, node->plane);
3076 node = node->children[0];
3077 else if (d < -radius)
3078 node = node->children[1];
3081 // go down both sides
3082 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
3083 node = node->children[1];
3086 // if this leaf is in a cluster, accumulate the pvs bits
3087 if (((mleaf_t *)node)->clusterindex >= 0)
3090 unsigned char *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3091 for (i = 0;i < pvsbytes;i++)
3092 pvsbuffer[i] |= pvs[i];
3096 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
3097 //of the given point.
3098 static int Mod_Q1BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength)
3100 int bytes = model->brush.num_pvsclusterbytes;
3101 bytes = min(bytes, pvsbufferlength);
3102 if (r_novis.integer || !model->brush.num_pvsclusters || !Mod_Q1BSP_GetPVS(model, org))
3104 memset(pvsbuffer, 0xFF, bytes);
3107 memset(pvsbuffer, 0, bytes);
3108 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes);
3112 static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
3117 VectorSubtract(inmaxs, inmins, size);
3118 if (cmodel->brush.ismcbsp)
3121 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3122 else if (size[2] < 48) // pick the nearest of 40 or 56
3123 hull = &cmodel->brushq1.hulls[2]; // 16x16x40
3125 hull = &cmodel->brushq1.hulls[1]; // 16x16x56
3127 else if (cmodel->brush.ishlbsp)
3130 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3131 else if (size[0] <= 32)
3133 if (size[2] < 54) // pick the nearest of 36 or 72
3134 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
3136 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
3139 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
3144 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3145 else if (size[0] <= 32)
3146 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
3148 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
3150 VectorCopy(inmins, outmins);
3151 VectorAdd(inmins, hull->clip_size, outmaxs);
3154 void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
3159 mempool_t *mainmempool;
3160 float dist, modelyawradius, modelradius, *vec;
3161 msurface_t *surface;
3162 int numshadowmeshtriangles;
3164 hullinfo_t hullinfo;
3166 mod->type = mod_brushq1;
3168 if (!memcmp (buffer, "MCBSPpad", 8))
3170 unsigned char *index;
3172 mod->brush.ismcbsp = true;
3173 mod->brush.ishlbsp = false;
3175 mod_base = (unsigned char*)buffer;
3179 i = SB_ReadInt (&index);
3180 if (i != MCBSPVERSION)
3181 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i)", mod->name, i, MCBSPVERSION);
3184 hullinfo.numhulls = LittleLong(*(int*)index); index += 4;
3185 hullinfo.filehulls = hullinfo.numhulls;
3186 VectorClear (hullinfo.hullsizes[0][0]);
3187 VectorClear (hullinfo.hullsizes[0][1]);
3188 for (i = 1; i < hullinfo.numhulls; i++)
3190 hullinfo.hullsizes[i][0][0] = SB_ReadFloat (&index);
3191 hullinfo.hullsizes[i][0][1] = SB_ReadFloat (&index);
3192 hullinfo.hullsizes[i][0][2] = SB_ReadFloat (&index);
3193 hullinfo.hullsizes[i][1][0] = SB_ReadFloat (&index);
3194 hullinfo.hullsizes[i][1][1] = SB_ReadFloat (&index);
3195 hullinfo.hullsizes[i][1][2] = SB_ReadFloat (&index);
3199 _header.version = 0;
3200 for (i = 0; i < HEADER_LUMPS; i++)
3202 _header.lumps[i].fileofs = SB_ReadInt (&index);
3203 _header.lumps[i].filelen = SB_ReadInt (&index);
3210 header = (dheader_t *)buffer;
3212 i = LittleLong(header->version);
3213 if (i != BSPVERSION && i != 30)
3214 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i(Quake) or 30(HalfLife)", mod->name, i, BSPVERSION);
3215 mod->brush.ishlbsp = i == 30;
3216 mod->brush.ismcbsp = false;
3218 // fill in hull info
3219 VectorClear (hullinfo.hullsizes[0][0]);
3220 VectorClear (hullinfo.hullsizes[0][1]);
3221 if (mod->brush.ishlbsp)
3223 hullinfo.numhulls = 4;
3224 hullinfo.filehulls = 4;
3225 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
3226 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
3227 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
3228 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
3229 VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
3230 VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
3234 hullinfo.numhulls = 3;
3235 hullinfo.filehulls = 4;
3236 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
3237 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
3238 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
3239 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
3243 mod_base = (unsigned char*)buffer;
3244 for (i = 0; i < HEADER_LUMPS; i++)
3246 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
3247 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
3251 mod->soundfromcenter = true;
3252 mod->TraceBox = Mod_Q1BSP_TraceBox;
3253 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3254 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3255 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
3256 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
3257 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
3258 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
3259 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
3260 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
3261 mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
3262 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
3263 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3264 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3265 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
3267 if (loadmodel->isworldmodel)
3269 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3270 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3275 // store which lightmap format to use
3276 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3278 mod->brush.qw_md4sum = 0;
3279 mod->brush.qw_md4sum2 = 0;
3280 for (i = 0;i < HEADER_LUMPS;i++)
3282 if (i == LUMP_ENTITIES)
3284 mod->brush.qw_md4sum ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3285 if (i == LUMP_VISIBILITY || i == LUMP_LEAFS || i == LUMP_NODES)
3287 mod->brush.qw_md4sum2 ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3290 Mod_Q1BSP_LoadEntities(&header->lumps[LUMP_ENTITIES]);
3291 Mod_Q1BSP_LoadVertexes(&header->lumps[LUMP_VERTEXES]);
3292 Mod_Q1BSP_LoadEdges(&header->lumps[LUMP_EDGES]);
3293 Mod_Q1BSP_LoadSurfedges(&header->lumps[LUMP_SURFEDGES]);
3294 Mod_Q1BSP_LoadTextures(&header->lumps[LUMP_TEXTURES]);
3295 Mod_Q1BSP_LoadLighting(&header->lumps[LUMP_LIGHTING]);
3296 Mod_Q1BSP_LoadPlanes(&header->lumps[LUMP_PLANES]);
3297 Mod_Q1BSP_LoadTexinfo(&header->lumps[LUMP_TEXINFO]);
3298 Mod_Q1BSP_LoadFaces(&header->lumps[LUMP_FACES]);
3299 Mod_Q1BSP_LoadLeaffaces(&header->lumps[LUMP_MARKSURFACES]);
3300 Mod_Q1BSP_LoadVisibility(&header->lumps[LUMP_VISIBILITY]);
3301 // load submodels before leafs because they contain the number of vis leafs
3302 Mod_Q1BSP_LoadSubmodels(&header->lumps[LUMP_MODELS], &hullinfo);
3303 Mod_Q1BSP_LoadLeafs(&header->lumps[LUMP_LEAFS]);
3304 Mod_Q1BSP_LoadNodes(&header->lumps[LUMP_NODES]);
3305 Mod_Q1BSP_LoadClipnodes(&header->lumps[LUMP_CLIPNODES], &hullinfo);
3307 // check if the map supports transparent water rendering
3308 loadmodel->brush.supportwateralpha = Mod_Q1BSP_CheckWaterAlphaSupport();
3310 if (!mod->brushq1.lightdata)
3311 mod->brush.LightPoint = NULL;
3313 if (mod->brushq1.data_compressedpvs)
3314 Mem_Free(mod->brushq1.data_compressedpvs);
3315 mod->brushq1.data_compressedpvs = NULL;
3316 mod->brushq1.num_compressedpvs = 0;
3318 Mod_Q1BSP_MakeHull0();
3319 Mod_Q1BSP_MakePortals();
3321 mod->numframes = 2; // regular and alternate animation
3324 mainmempool = mod->mempool;
3326 // make a single combined shadow mesh to allow optimized shadow volume creation
3327 numshadowmeshtriangles = 0;
3328 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3330 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
3331 numshadowmeshtriangles += surface->num_triangles;
3333 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
3334 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3335 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));
3336 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
3337 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
3339 if (loadmodel->brush.numsubmodels)
3340 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
3342 if (loadmodel->isworldmodel)
3344 // clear out any stale submodels or worldmodels lying around
3345 // if we did this clear before now, an error might abort loading and
3346 // leave things in a bad state
3347 Mod_RemoveStaleWorldModels(loadmodel);
3350 // LordHavoc: to clear the fog around the original quake submodel code, I
3352 // first of all, some background info on the submodels:
3353 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
3354 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
3355 // now the weird for loop itself:
3356 // the loop functions in an odd way, on each iteration it sets up the
3357 // current 'mod' model (which despite the confusing code IS the model of
3358 // the number i), at the end of the loop it duplicates the model to become
3359 // the next submodel, and loops back to set up the new submodel.
3361 // LordHavoc: now the explanation of my sane way (which works identically):
3362 // set up the world model, then on each submodel copy from the world model
3363 // and set up the submodel with the respective model info.
3364 for (i = 0;i < mod->brush.numsubmodels;i++)
3366 // LordHavoc: this code was originally at the end of this loop, but
3367 // has been transformed to something more readable at the start here.
3372 // LordHavoc: only register submodels if it is the world
3373 // (prevents external bsp models from replacing world submodels with
3375 if (!loadmodel->isworldmodel)
3377 // duplicate the basic information
3378 sprintf(name, "*%i", i);
3379 mod = Mod_FindName(name);
3380 // copy the base model to this one
3382 // rename the clone back to its proper name
3383 strlcpy(mod->name, name, sizeof(mod->name));
3384 // textures and memory belong to the main model
3385 mod->texturepool = NULL;
3386 mod->mempool = NULL;
3389 mod->brush.submodel = i;
3391 if (loadmodel->brush.submodels)
3392 loadmodel->brush.submodels[i] = mod;
3394 bm = &mod->brushq1.submodels[i];
3396 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
3397 for (j=1 ; j<MAX_MAP_HULLS ; j++)
3399 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
3400 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
3403 mod->firstmodelsurface = bm->firstface;
3404 mod->nummodelsurfaces = bm->numfaces;
3406 // make the model surface list (used by shadowing/lighting)
3407 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
3408 for (j = 0;j < mod->nummodelsurfaces;j++)
3409 mod->surfacelist[j] = mod->firstmodelsurface + j;
3411 // this gets altered below if sky is used
3412 mod->DrawSky = NULL;
3413 mod->Draw = R_Q1BSP_Draw;
3414 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
3415 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
3416 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
3417 mod->DrawLight = R_Q1BSP_DrawLight;
3420 mod->brush.GetPVS = NULL;
3421 mod->brush.FatPVS = NULL;
3422 mod->brush.BoxTouchingPVS = NULL;
3423 mod->brush.BoxTouchingLeafPVS = NULL;
3424 mod->brush.BoxTouchingVisibleLeafs = NULL;
3425 mod->brush.FindBoxClusters = NULL;
3426 mod->brush.LightPoint = NULL;
3427 mod->brush.AmbientSoundLevelsForPoint = NULL;
3429 Mod_Q1BSP_BuildLightmapUpdateChains(loadmodel->mempool, mod);
3430 if (mod->nummodelsurfaces)
3432 // LordHavoc: calculate bmodel bounding box rather than trusting what it says
3433 mod->normalmins[0] = mod->normalmins[1] = mod->normalmins[2] = 1000000000.0f;
3434 mod->normalmaxs[0] = mod->normalmaxs[1] = mod->normalmaxs[2] = -1000000000.0f;
3437 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
3439 // we only need to have a drawsky function if it is used(usually only on world model)
3440 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
3441 mod->DrawSky = R_Q1BSP_DrawSky;
3442 // calculate bounding shapes
3443 for (k = 0, vec = (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex);k < surface->num_vertices;k++, vec += 3)
3445 if (mod->normalmins[0] > vec[0]) mod->normalmins[0] = vec[0];
3446 if (mod->normalmins[1] > vec[1]) mod->normalmins[1] = vec[1];
3447 if (mod->normalmins[2] > vec[2]) mod->normalmins[2] = vec[2];
3448 if (mod->normalmaxs[0] < vec[0]) mod->normalmaxs[0] = vec[0];
3449 if (mod->normalmaxs[1] < vec[1]) mod->normalmaxs[1] = vec[1];
3450 if (mod->normalmaxs[2] < vec[2]) mod->normalmaxs[2] = vec[2];
3451 dist = vec[0]*vec[0]+vec[1]*vec[1];
3452 if (modelyawradius < dist)
3453 modelyawradius = dist;
3454 dist += vec[2]*vec[2];
3455 if (modelradius < dist)
3459 modelyawradius = sqrt(modelyawradius);
3460 modelradius = sqrt(modelradius);
3461 mod->yawmins[0] = mod->yawmins[1] = - (mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius);
3462 mod->yawmins[2] = mod->normalmins[2];
3463 mod->yawmaxs[2] = mod->normalmaxs[2];
3464 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
3465 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
3466 mod->radius = modelradius;
3467 mod->radius2 = modelradius * modelradius;
3471 // LordHavoc: empty submodel(lacrima.bsp has such a glitch)
3472 Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
3474 //mod->brushq1.num_visleafs = bm->visleafs;
3477 Mod_Q1BSP_LoadMapBrushes();
3479 //Mod_Q1BSP_ProcessLightList();
3481 if (developer.integer >= 10)
3482 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);
3485 static void Mod_Q2BSP_LoadEntities(lump_t *l)
3489 static void Mod_Q2BSP_LoadPlanes(lump_t *l)
3496 in = (void *)(mod_base + l->fileofs);
3497 if (l->filelen % sizeof(*in))
3498 Host_Error("Mod_Q2BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
3499 count = l->filelen / sizeof(*in);
3500 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3503 loadmodel->num = count;
3505 for (i = 0;i < count;i++, in++, out++)
3511 static void Mod_Q2BSP_LoadVertices(lump_t *l)
3518 in = (void *)(mod_base + l->fileofs);
3519 if (l->filelen % sizeof(*in))
3520 Host_Error("Mod_Q2BSP_LoadVertices: funny lump size in %s",loadmodel->name);
3521 count = l->filelen / sizeof(*in);
3522 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3525 loadmodel->num = count;
3527 for (i = 0;i < count;i++, in++, out++)
3533 static void Mod_Q2BSP_LoadVisibility(lump_t *l)
3540 in = (void *)(mod_base + l->fileofs);
3541 if (l->filelen % sizeof(*in))
3542 Host_Error("Mod_Q2BSP_LoadVisibility: funny lump size in %s",loadmodel->name);
3543 count = l->filelen / sizeof(*in);
3544 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3547 loadmodel->num = count;
3549 for (i = 0;i < count;i++, in++, out++)
3555 static void Mod_Q2BSP_LoadNodes(lump_t *l)
3562 in = (void *)(mod_base + l->fileofs);
3563 if (l->filelen % sizeof(*in))
3564 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
3565 count = l->filelen / sizeof(*in);
3566 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3569 loadmodel->num = count;
3571 for (i = 0;i < count;i++, in++, out++)
3577 static void Mod_Q2BSP_LoadTexInfo(lump_t *l)
3584 in = (void *)(mod_base + l->fileofs);
3585 if (l->filelen % sizeof(*in))
3586 Host_Error("Mod_Q2BSP_LoadTexInfo: funny lump size in %s",loadmodel->name);
3587 count = l->filelen / sizeof(*in);
3588 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3591 loadmodel->num = count;
3593 for (i = 0;i < count;i++, in++, out++)
3599 static void Mod_Q2BSP_LoadFaces(lump_t *l)
3606 in = (void *)(mod_base + l->fileofs);
3607 if (l->filelen % sizeof(*in))
3608 Host_Error("Mod_Q2BSP_LoadFaces: funny lump size in %s",loadmodel->name);
3609 count = l->filelen / sizeof(*in);
3610 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3613 loadmodel->num = count;
3615 for (i = 0;i < count;i++, in++, out++)
3621 static void Mod_Q2BSP_LoadLighting(lump_t *l)
3628 in = (void *)(mod_base + l->fileofs);
3629 if (l->filelen % sizeof(*in))
3630 Host_Error("Mod_Q2BSP_LoadLighting: funny lump size in %s",loadmodel->name);
3631 count = l->filelen / sizeof(*in);
3632 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3635 loadmodel->num = count;
3637 for (i = 0;i < count;i++, in++, out++)
3643 static void Mod_Q2BSP_LoadLeafs(lump_t *l)
3650 in = (void *)(mod_base + l->fileofs);
3651 if (l->filelen % sizeof(*in))
3652 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
3653 count = l->filelen / sizeof(*in);
3654 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3657 loadmodel->num = count;
3659 for (i = 0;i < count;i++, in++, out++)
3665 static void Mod_Q2BSP_LoadLeafFaces(lump_t *l)
3672 in = (void *)(mod_base + l->fileofs);
3673 if (l->filelen % sizeof(*in))
3674 Host_Error("Mod_Q2BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
3675 count = l->filelen / sizeof(*in);
3676 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3679 loadmodel->num = count;
3681 for (i = 0;i < count;i++, in++, out++)
3687 static void Mod_Q2BSP_LoadLeafBrushes(lump_t *l)
3694 in = (void *)(mod_base + l->fileofs);
3695 if (l->filelen % sizeof(*in))
3696 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
3697 count = l->filelen / sizeof(*in);
3698 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3701 loadmodel->num = count;
3703 for (i = 0;i < count;i++, in++, out++)
3709 static void Mod_Q2BSP_LoadEdges(lump_t *l)
3716 in = (void *)(mod_base + l->fileofs);
3717 if (l->filelen % sizeof(*in))
3718 Host_Error("Mod_Q2BSP_LoadEdges: funny lump size in %s",loadmodel->name);
3719 count = l->filelen / sizeof(*in);
3720 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3723 loadmodel->num = count;
3725 for (i = 0;i < count;i++, in++, out++)
3731 static void Mod_Q2BSP_LoadSurfEdges(lump_t *l)
3738 in = (void *)(mod_base + l->fileofs);
3739 if (l->filelen % sizeof(*in))
3740 Host_Error("Mod_Q2BSP_LoadSurfEdges: funny lump size in %s",loadmodel->name);
3741 count = l->filelen / sizeof(*in);
3742 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3745 loadmodel->num = count;
3747 for (i = 0;i < count;i++, in++, out++)
3753 static void Mod_Q2BSP_LoadBrushes(lump_t *l)
3760 in = (void *)(mod_base + l->fileofs);
3761 if (l->filelen % sizeof(*in))
3762 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
3763 count = l->filelen / sizeof(*in);
3764 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3767 loadmodel->num = count;
3769 for (i = 0;i < count;i++, in++, out++)
3775 static void Mod_Q2BSP_LoadBrushSides(lump_t *l)
3782 in = (void *)(mod_base + l->fileofs);
3783 if (l->filelen % sizeof(*in))
3784 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
3785 count = l->filelen / sizeof(*in);
3786 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3789 loadmodel->num = count;
3791 for (i = 0;i < count;i++, in++, out++)
3797 static void Mod_Q2BSP_LoadAreas(lump_t *l)
3804 in = (void *)(mod_base + l->fileofs);
3805 if (l->filelen % sizeof(*in))
3806 Host_Error("Mod_Q2BSP_LoadAreas: funny lump size in %s",loadmodel->name);
3807 count = l->filelen / sizeof(*in);
3808 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3811 loadmodel->num = count;
3813 for (i = 0;i < count;i++, in++, out++)
3819 static void Mod_Q2BSP_LoadAreaPortals(lump_t *l)
3826 in = (void *)(mod_base + l->fileofs);
3827 if (l->filelen % sizeof(*in))
3828 Host_Error("Mod_Q2BSP_LoadAreaPortals: funny lump size in %s",loadmodel->name);
3829 count = l->filelen / sizeof(*in);
3830 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3833 loadmodel->num = count;
3835 for (i = 0;i < count;i++, in++, out++)
3841 static void Mod_Q2BSP_LoadModels(lump_t *l)
3848 in = (void *)(mod_base + l->fileofs);
3849 if (l->filelen % sizeof(*in))
3850 Host_Error("Mod_Q2BSP_LoadModels: funny lump size in %s",loadmodel->name);
3851 count = l->filelen / sizeof(*in);
3852 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3855 loadmodel->num = count;
3857 for (i = 0;i < count;i++, in++, out++)
3863 void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
3866 q2dheader_t *header;
3868 Host_Error("Mod_Q2BSP_Load: not yet implemented");
3870 mod->type = mod_brushq2;
3872 header = (q2dheader_t *)buffer;
3874 i = LittleLong(header->version);
3875 if (i != Q2BSPVERSION)
3876 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
3877 mod->brush.ishlbsp = false;
3878 mod->brush.ismcbsp = false;
3879 if (loadmodel->isworldmodel)
3881 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3882 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3885 mod_base = (unsigned char *)header;
3887 // swap all the lumps
3888 for (i = 0;i < (int) sizeof(*header) / 4;i++)
3889 ((int *)header)[i] = LittleLong(((int *)header)[i]);
3891 // store which lightmap format to use
3892 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3894 mod->brush.qw_md4sum = 0;
3895 mod->brush.qw_md4sum2 = 0;
3896 for (i = 0;i < Q2HEADER_LUMPS;i++)
3898 if (i == Q2LUMP_ENTITIES)
3900 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
3901 if (i == Q2LUMP_VISIBILITY || i == Q2LUMP_LEAFS || i == Q2LUMP_NODES)
3903 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
3906 Mod_Q2BSP_LoadEntities(&header->lumps[Q2LUMP_ENTITIES]);
3907 Mod_Q2BSP_LoadPlanes(&header->lumps[Q2LUMP_PLANES]);
3908 Mod_Q2BSP_LoadVertices(&header->lumps[Q2LUMP_VERTEXES]);
3909 Mod_Q2BSP_LoadVisibility(&header->lumps[Q2LUMP_VISIBILITY]);
3910 Mod_Q2BSP_LoadNodes(&header->lumps[Q2LUMP_NODES]);
3911 Mod_Q2BSP_LoadTexInfo(&header->lumps[Q2LUMP_TEXINFO]);
3912 Mod_Q2BSP_LoadFaces(&header->lumps[Q2LUMP_FACES]);
3913 Mod_Q2BSP_LoadLighting(&header->lumps[Q2LUMP_LIGHTING]);
3914 Mod_Q2BSP_LoadLeafs(&header->lumps[Q2LUMP_LEAFS]);
3915 Mod_Q2BSP_LoadLeafFaces(&header->lumps[Q2LUMP_LEAFFACES]);
3916 Mod_Q2BSP_LoadLeafBrushes(&header->lumps[Q2LUMP_LEAFBRUSHES]);
3917 Mod_Q2BSP_LoadEdges(&header->lumps[Q2LUMP_EDGES]);
3918 Mod_Q2BSP_LoadSurfEdges(&header->lumps[Q2LUMP_SURFEDGES]);
3919 Mod_Q2BSP_LoadBrushes(&header->lumps[Q2LUMP_BRUSHES]);
3920 Mod_Q2BSP_LoadBrushSides(&header->lumps[Q2LUMP_BRUSHSIDES]);
3921 Mod_Q2BSP_LoadAreas(&header->lumps[Q2LUMP_AREAS]);
3922 Mod_Q2BSP_LoadAreaPortals(&header->lumps[Q2LUMP_AREAPORTALS]);
3923 // LordHavoc: must go last because this makes the submodels
3924 Mod_Q2BSP_LoadModels(&header->lumps[Q2LUMP_MODELS]);
3927 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents);
3928 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents);
3930 static void Mod_Q3BSP_LoadEntities(lump_t *l)
3933 char key[128], value[MAX_INPUTLINE];
3935 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
3936 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
3937 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
3940 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
3941 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
3942 data = loadmodel->brush.entities;
3943 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
3944 if (data && COM_ParseTokenConsole(&data) && com_token[0] == '{')
3948 if (!COM_ParseTokenConsole(&data))
3950 if (com_token[0] == '}')
3951 break; // end of worldspawn
3952 if (com_token[0] == '_')
3953 strlcpy(key, com_token + 1, sizeof(key));
3955 strlcpy(key, com_token, sizeof(key));
3956 while (key[strlen(key)-1] == ' ') // remove trailing spaces
3957 key[strlen(key)-1] = 0;
3958 if (!COM_ParseTokenConsole(&data))
3960 strlcpy(value, com_token, sizeof(value));
3961 if (!strcmp("gridsize", key))
3963 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
3964 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
3970 // FIXME: make MAXSHADERS dynamic
3971 #define Q3SHADER_MAXSHADERS 4096
3972 #define Q3SHADER_MAXLAYERS 8
3974 typedef struct q3shaderinfo_layer_s
3980 char texturename[TEXTURE_MAXFRAMES][Q3PATHLENGTH];
3982 qboolean rgbgenvertex;
3983 qboolean alphagenvertex;
3985 q3shaderinfo_layer_t;
3987 typedef struct q3shaderinfo_s
3989 char name[Q3PATHLENGTH];
3994 qboolean vertexalpha;
3995 qboolean textureblendalpha;
3996 q3shaderinfo_layer_t *primarylayer, *backgroundlayer;
3997 q3shaderinfo_layer_t layers[Q3SHADER_MAXLAYERS];
3998 char skyboxname[Q3PATHLENGTH];
4002 int q3shaders_numshaders;
4003 q3shaderinfo_t q3shaders_shaders[Q3SHADER_MAXSHADERS];
4005 static void Mod_Q3BSP_LoadShaders(void)
4012 q3shaderinfo_t *shader;
4013 q3shaderinfo_layer_t *layer;
4015 char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
4016 search = FS_Search("scripts/*.shader", true, false);
4019 q3shaders_numshaders = 0;
4020 for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
4022 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
4025 while (COM_ParseToken(&text, false))
4027 if (q3shaders_numshaders >= Q3SHADER_MAXSHADERS)
4029 Con_Printf("Mod_Q3BSP_LoadShaders: too many shaders!\n");
4032 shader = q3shaders_shaders + q3shaders_numshaders++;
4033 memset(shader, 0, sizeof(*shader));
4034 strlcpy(shader->name, com_token, sizeof(shader->name));
4035 if (!COM_ParseToken(&text, false) || strcasecmp(com_token, "{"))
4037 Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
4040 while (COM_ParseToken(&text, false))
4042 if (!strcasecmp(com_token, "}"))
4044 if (!strcasecmp(com_token, "{"))
4046 if (shader->numlayers < Q3SHADER_MAXLAYERS)
4048 layer = shader->layers + shader->numlayers++;
4049 layer->rgbgenvertex = false;
4050 layer->alphagenvertex = false;
4051 layer->blendfunc[0] = GL_ONE;
4052 layer->blendfunc[1] = GL_ZERO;
4056 while (COM_ParseToken(&text, false))
4058 if (!strcasecmp(com_token, "}"))
4060 if (!strcasecmp(com_token, "\n"))
4065 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
4067 if (j < TEXTURE_MAXFRAMES + 4)
4069 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
4070 numparameters = j + 1;
4072 if (!COM_ParseToken(&text, true))
4075 if (developer.integer >= 100)
4077 Con_Printf("%s %i: ", shader->name, shader->numlayers - 1);
4078 for (j = 0;j < numparameters;j++)
4079 Con_Printf(" %s", parameter[j]);
4082 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
4084 if (numparameters == 2)
4086 if (!strcasecmp(parameter[1], "add"))
4088 layer->blendfunc[0] = GL_ONE;
4089 layer->blendfunc[1] = GL_ONE;
4091 else if (!strcasecmp(parameter[1], "filter"))
4093 layer->blendfunc[0] = GL_DST_COLOR;
4094 layer->blendfunc[1] = GL_ZERO;
4096 else if (!strcasecmp(parameter[1], "blend"))
4098 layer->blendfunc[0] = GL_SRC_ALPHA;
4099 layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
4102 else if (numparameters == 3)
4105 for (k = 0;k < 2;k++)
4107 if (!strcasecmp(parameter[k+1], "GL_ONE"))
4108 layer->blendfunc[k] = GL_ONE;
4109 else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
4110 layer->blendfunc[k] = GL_ZERO;
4111 else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
4112 layer->blendfunc[k] = GL_SRC_COLOR;
4113 else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
4114 layer->blendfunc[k] = GL_SRC_ALPHA;
4115 else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
4116 layer->blendfunc[k] = GL_DST_COLOR;
4117 else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
4118 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
4119 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
4120 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
4121 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
4122 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
4123 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
4124 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
4125 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
4126 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
4128 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
4132 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
4133 layer->alphatest = true;
4134 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
4136 if (!strcasecmp(parameter[0], "clampmap"))
4137 layer->clampmap = true;
4138 layer->numframes = 1;
4139 layer->framerate = 1;
4140 strlcpy(layer->texturename[0], parameter[1], sizeof(layer->texturename));
4141 if (!strcasecmp(parameter[1], "$lightmap"))
4142 shader->lighting = true;
4144 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
4147 layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
4148 layer->framerate = atoi(parameter[1]);
4149 for (i = 0;i < layer->numframes;i++)
4150 strlcpy(layer->texturename[i], parameter[i + 2], sizeof(layer->texturename));
4152 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen") && !strcasecmp(parameter[1], "vertex"))
4153 layer->rgbgenvertex = true;
4154 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen") && !strcasecmp(parameter[1], "vertex"))
4155 layer->alphagenvertex = true;
4156 // break out a level if it was }
4157 if (!strcasecmp(com_token, "}"))
4160 if (layer->rgbgenvertex)
4161 shader->lighting = true;
4162 if (layer->alphagenvertex)
4164 if (layer == shader->layers + 0)
4166 // vertex controlled transparency
4167 shader->vertexalpha = true;
4171 // multilayer terrain shader or similar
4172 shader->textureblendalpha = true;
4178 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
4180 if (j < TEXTURE_MAXFRAMES + 4)
4182 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
4183 numparameters = j + 1;
4185 if (!COM_ParseToken(&text, true))
4188 if (fileindex == 0 && !strcasecmp(com_token, "}"))
4190 if (developer.integer >= 100)
4192 Con_Printf("%s: ", shader->name);
4193 for (j = 0;j < numparameters;j++)
4194 Con_Printf(" %s", parameter[j]);
4197 if (numparameters < 1)
4199 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
4201 if (!strcasecmp(parameter[1], "alphashadow"))
4202 shader->surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
4203 else if (!strcasecmp(parameter[1], "areaportal"))
4204 shader->surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
4205 else if (!strcasecmp(parameter[1], "botclip"))
4206 shader->surfaceparms |= Q3SURFACEPARM_BOTCLIP;
4207 else if (!strcasecmp(parameter[1], "clusterportal"))
4208 shader->surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
4209 else if (!strcasecmp(parameter[1], "detail"))
4210 shader->surfaceparms |= Q3SURFACEPARM_DETAIL;
4211 else if (!strcasecmp(parameter[1], "donotenter"))
4212 shader->surfaceparms |= Q3SURFACEPARM_DONOTENTER;
4213 else if (!strcasecmp(parameter[1], "dust"))
4214 shader->surfaceparms |= Q3SURFACEPARM_DUST;
4215 else if (!strcasecmp(parameter[1], "hint"))
4216 shader->surfaceparms |= Q3SURFACEPARM_HINT;
4217 else if (!strcasecmp(parameter[1], "fog"))
4218 shader->surfaceparms |= Q3SURFACEPARM_FOG;
4219 else if (!strcasecmp(parameter[1], "lava"))
4220 shader->surfaceparms |= Q3SURFACEPARM_LAVA;
4221 else if (!strcasecmp(parameter[1], "lightfilter"))
4222 shader->surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
4223 else if (!strcasecmp(parameter[1], "lightgrid"))
4224 shader->surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
4225 else if (!strcasecmp(parameter[1], "metalsteps"))
4226 shader->surfaceparms |= Q3SURFACEPARM_METALSTEPS;
4227 else if (!strcasecmp(parameter[1], "nodamage"))
4228 shader->surfaceparms |= Q3SURFACEPARM_NODAMAGE;
4229 else if (!strcasecmp(parameter[1], "nodlight"))
4230 shader->surfaceparms |= Q3SURFACEPARM_NODLIGHT;
4231 else if (!strcasecmp(parameter[1], "nodraw"))
4232 shader->surfaceparms |= Q3SURFACEPARM_NODRAW;
4233 else if (!strcasecmp(parameter[1], "nodrop"))
4234 shader->surfaceparms |= Q3SURFACEPARM_NODROP;
4235 else if (!strcasecmp(parameter[1], "noimpact"))
4236 shader->surfaceparms |= Q3SURFACEPARM_NOIMPACT;
4237 else if (!strcasecmp(parameter[1], "nolightmap"))
4238 shader->surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
4239 else if (!strcasecmp(parameter[1], "nomarks"))
4240 shader->surfaceparms |= Q3SURFACEPARM_NOMARKS;
4241 else if (!strcasecmp(parameter[1], "nomipmaps"))
4242 shader->surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
4243 else if (!strcasecmp(parameter[1], "nonsolid"))
4244 shader->surfaceparms |= Q3SURFACEPARM_NONSOLID;
4245 else if (!strcasecmp(parameter[1], "origin"))
4246 shader->surfaceparms |= Q3SURFACEPARM_ORIGIN;
4247 else if (!strcasecmp(parameter[1], "playerclip"))
4248 shader->surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
4249 else if (!strcasecmp(parameter[1], "sky"))
4250 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4251 else if (!strcasecmp(parameter[1], "slick"))
4252 shader->surfaceparms |= Q3SURFACEPARM_SLICK;
4253 else if (!strcasecmp(parameter[1], "slime"))
4254 shader->surfaceparms |= Q3SURFACEPARM_SLIME;
4255 else if (!strcasecmp(parameter[1], "structural"))
4256 shader->surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
4257 else if (!strcasecmp(parameter[1], "trans"))
4258 shader->surfaceparms |= Q3SURFACEPARM_TRANS;
4259 else if (!strcasecmp(parameter[1], "water"))
4260 shader->surfaceparms |= Q3SURFACEPARM_WATER;
4261 else if (!strcasecmp(parameter[1], "pointlight"))
4262 shader->surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
4264 Con_Printf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
4266 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
4268 // some q3 skies don't have the sky parm set
4269 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4270 strlcpy(shader->skyboxname, parameter[1], sizeof(shader->skyboxname));
4272 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
4274 // some q3 skies don't have the sky parm set
4275 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4276 if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
4277 strlcpy(shader->skyboxname, parameter[1], sizeof(shader->skyboxname));
4279 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
4281 if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
4282 shader->textureflags |= Q3TEXTUREFLAG_TWOSIDED;
4284 else if (!strcasecmp(parameter[0], "nomipmaps"))
4285 shader->surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
4286 else if (!strcasecmp(parameter[0], "nopicmip"))
4287 shader->textureflags |= Q3TEXTUREFLAG_NOPICMIP;
4288 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
4290 if (!strcasecmp(parameter[1], "autosprite") && numparameters == 2)
4291 shader->textureflags |= Q3TEXTUREFLAG_AUTOSPRITE;
4292 if (!strcasecmp(parameter[1], "autosprite2") && numparameters == 2)
4293 shader->textureflags |= Q3TEXTUREFLAG_AUTOSPRITE2;
4296 // identify if this is a blended terrain shader or similar
4297 if (shader->numlayers)
4299 shader->primarylayer = shader->layers + 0;
4300 if ((shader->layers[1].blendfunc[0] == GL_SRC_ALPHA && shader->layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA) || shader->layers[1].alphatest)
4302 // terrain blending or other effects
4303 shader->backgroundlayer = shader->layers + 0;
4304 shader->primarylayer = shader->layers + 1;
4306 // now see if the lightmap came first, and if so choose the second texture instead
4307 if (!strcasecmp(shader->primarylayer->texturename[0], "$lightmap"))
4308 shader->primarylayer = shader->layers + 1;
4315 q3shaderinfo_t *Mod_Q3BSP_LookupShader(const char *name)
4318 for (i = 0;i < Q3SHADER_MAXSHADERS;i++)
4319 if (!strcasecmp(q3shaders_shaders[i].name, name))
4320 return q3shaders_shaders + i;
4324 static void Mod_Q3BSP_LoadTextures(lump_t *l)
4330 in = (q3dtexture_t *)(mod_base + l->fileofs);
4331 if (l->filelen % sizeof(*in))
4332 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
4333 count = l->filelen / sizeof(*in);
4334 out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4336 loadmodel->data_textures = out;
4337 loadmodel->num_textures = count;
4339 // parse the Q3 shader files
4340 Mod_Q3BSP_LoadShaders();
4343 for (i = 0;i < count;i++, in++, out++)
4345 q3shaderinfo_t *shader;
4346 strlcpy (out->name, in->name, sizeof (out->name));
4347 out->surfaceflags = LittleLong(in->surfaceflags);
4348 out->supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in->contents));
4349 shader = Mod_Q3BSP_LookupShader(out->name);
4352 out->surfaceparms = shader->surfaceparms;
4353 out->textureflags = shader->textureflags;
4354 out->basematerialflags = 0;
4355 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
4357 out->basematerialflags |= MATERIALFLAG_SKY;
4358 if (shader->skyboxname[0])
4360 // quake3 seems to append a _ to the skybox name, so this must do so as well
4361 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
4364 else if ((out->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
4365 out->basematerialflags |= MATERIALFLAG_NODRAW;
4366 else if (shader->surfaceparms & Q3SURFACEPARM_LAVA)
4367 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_FULLBRIGHT;
4368 else if (shader->surfaceparms & Q3SURFACEPARM_SLIME)
4369 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_WATERALPHA;
4370 else if (shader->surfaceparms & Q3SURFACEPARM_WATER)
4371 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_WATERALPHA;
4373 out->basematerialflags |= MATERIALFLAG_WALL;
4374 if (shader->layers[0].alphatest)
4375 out->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_TRANSPARENT;
4376 out->customblendfunc[0] = GL_ONE;
4377 out->customblendfunc[1] = GL_ZERO;
4378 if (shader->numlayers > 0)
4380 out->customblendfunc[0] = shader->layers[0].blendfunc[0];
4381 out->customblendfunc[1] = shader->layers[0].blendfunc[1];
4383 Q3 shader blendfuncs actually used in the game (* = supported by DP)
4384 * additive GL_ONE GL_ONE
4385 additive weird GL_ONE GL_SRC_ALPHA
4386 additive weird 2 GL_ONE GL_ONE_MINUS_SRC_ALPHA
4387 * alpha GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
4388 alpha inverse GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
4389 brighten GL_DST_COLOR GL_ONE
4390 brighten GL_ONE GL_SRC_COLOR
4391 brighten weird GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
4392 brighten weird 2 GL_DST_COLOR GL_SRC_ALPHA
4393 * modulate GL_DST_COLOR GL_ZERO
4394 * modulate GL_ZERO GL_SRC_COLOR
4395 modulate inverse GL_ZERO GL_ONE_MINUS_SRC_COLOR
4396 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
4397 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
4398 * modulate x2 GL_DST_COLOR GL_SRC_COLOR
4399 * no blend GL_ONE GL_ZERO
4400 nothing GL_ZERO GL_ONE
4402 // if not opaque, figure out what blendfunc to use
4403 if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
4405 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
4406 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT;
4407 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
4408 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT;
4409 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
4410 out->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT;
4412 out->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT;
4415 if (!shader->lighting)
4416 out->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
4417 if (shader->primarylayer && cls.state != ca_dedicated)
4420 out->numskinframes = shader->primarylayer->numframes;
4421 out->skinframerate = shader->primarylayer->framerate;
4422 for (j = 0;j < shader->primarylayer->numframes;j++)
4423 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))
4424 Con_Printf("%s: could not load texture \"%s\" (frame %i) for shader \"%s\"\n", loadmodel->name, shader->primarylayer->texturename[j], j, out->name);
4430 Con_DPrintf("%s: No shader found for texture \"%s\"\n", loadmodel->name, out->name);
4431 out->surfaceparms = 0;
4432 if (out->surfaceflags & Q3SURFACEFLAG_NODRAW)
4433 out->basematerialflags |= MATERIALFLAG_NODRAW;
4434 else if (out->surfaceflags & Q3SURFACEFLAG_SKY)
4435 out->basematerialflags |= MATERIALFLAG_SKY;
4437 out->basematerialflags |= MATERIALFLAG_WALL;
4438 // these are defaults
4439 //if (!strncmp(out->name, "textures/skies/", 15))
4440 // out->surfaceparms |= Q3SURFACEPARM_SKY;
4441 //if (!strcmp(out->name, "caulk") || !strcmp(out->name, "common/caulk") || !strcmp(out->name, "textures/common/caulk")
4442 // || !strcmp(out->name, "nodraw") || !strcmp(out->name, "common/nodraw") || !strcmp(out->name, "textures/common/nodraw"))
4443 // out->surfaceparms |= Q3SURFACEPARM_NODRAW;
4444 //if (R_TextureHasAlpha(out->skinframes[0].base))
4445 // out->surfaceparms |= Q3SURFACEPARM_TRANS;
4446 if (cls.state != ca_dedicated)
4447 if (!Mod_LoadSkinFrame(&out->skinframes[0], out->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, true))
4448 Con_Printf("%s: could not load texture for missing shader \"%s\"\n", loadmodel->name, out->name);
4450 // init the animation variables
4451 out->currentframe = out;
4452 out->currentskinframe = &out->skinframes[0];
4455 Con_DPrintf("%s: %i textures missing shaders\n", loadmodel->name, c);
4458 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
4464 in = (q3dplane_t *)(mod_base + l->fileofs);
4465 if (l->filelen % sizeof(*in))
4466 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
4467 count = l->filelen / sizeof(*in);
4468 out = (mplane_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4470 loadmodel->brush.data_planes = out;
4471 loadmodel->brush.num_planes = count;
4473 for (i = 0;i < count;i++, in++, out++)
4475 out->normal[0] = LittleFloat(in->normal[0]);
4476 out->normal[1] = LittleFloat(in->normal[1]);
4477 out->normal[2] = LittleFloat(in->normal[2]);
4478 out->dist = LittleFloat(in->dist);
4483 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
4486 q3mbrushside_t *out;
4489 in = (q3dbrushside_t *)(mod_base + l->fileofs);
4490 if (l->filelen % sizeof(*in))
4491 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4492 count = l->filelen / sizeof(*in);
4493 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4495 loadmodel->brush.data_brushsides = out;
4496 loadmodel->brush.num_brushsides = count;
4498 for (i = 0;i < count;i++, in++, out++)
4500 n = LittleLong(in->planeindex);
4501 if (n < 0 || n >= loadmodel->brush.num_planes)
4502 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
4503 out->plane = loadmodel->brush.data_planes + n;
4504 n = LittleLong(in->textureindex);
4505 if (n < 0 || n >= loadmodel->num_textures)
4506 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4507 out->texture = loadmodel->data_textures + n;
4511 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
4515 int i, j, n, c, count, maxplanes;
4516 colplanef_t *planes;
4518 in = (q3dbrush_t *)(mod_base + l->fileofs);
4519 if (l->filelen % sizeof(*in))
4520 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4521 count = l->filelen / sizeof(*in);
4522 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4524 loadmodel->brush.data_brushes = out;
4525 loadmodel->brush.num_brushes = count;
4530 for (i = 0;i < count;i++, in++, out++)
4532 n = LittleLong(in->firstbrushside);
4533 c = LittleLong(in->numbrushsides);
4534 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
4535 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", n, n + c, loadmodel->brush.num_brushsides);
4536 out->firstbrushside = loadmodel->brush.data_brushsides + n;
4537 out->numbrushsides = c;
4538 n = LittleLong(in->textureindex);
4539 if (n < 0 || n >= loadmodel->num_textures)
4540 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4541 out->texture = loadmodel->data_textures + n;
4543 // make a list of mplane_t structs to construct a colbrush from
4544 if (maxplanes < out->numbrushsides)
4546 maxplanes = out->numbrushsides;
4549 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
4551 for (j = 0;j < out->numbrushsides;j++)
4553 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4554 planes[j].dist = out->firstbrushside[j].plane->dist;
4555 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
4556 planes[j].texture = out->firstbrushside[j].texture;
4558 // make the colbrush from the planes
4559 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents);
4565 static void Mod_Q3BSP_LoadEffects(lump_t *l)
4571 in = (q3deffect_t *)(mod_base + l->fileofs);
4572 if (l->filelen % sizeof(*in))
4573 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
4574 count = l->filelen / sizeof(*in);
4575 out = (q3deffect_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4577 loadmodel->brushq3.data_effects = out;
4578 loadmodel->brushq3.num_effects = count;
4580 for (i = 0;i < count;i++, in++, out++)
4582 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
4583 n = LittleLong(in->brushindex);
4584 if (n >= loadmodel->brush.num_brushes)
4586 Con_Printf("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes), setting to -1\n", n, loadmodel->brush.num_brushes);
4589 out->brushindex = n;
4590 out->unknown = LittleLong(in->unknown);
4594 static void Mod_Q3BSP_LoadVertices(lump_t *l)
4599 in = (q3dvertex_t *)(mod_base + l->fileofs);
4600 if (l->filelen % sizeof(*in))
4601 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
4602 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
4603 loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 3 + 2 + 2 + 4)));
4604 loadmodel->brushq3.data_normal3f = loadmodel->brushq3.data_vertex3f + count * 3;
4605 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_normal3f + count * 3;
4606 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
4607 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
4609 for (i = 0;i < count;i++, in++)
4611 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
4612 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
4613 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
4614 loadmodel->brushq3.data_normal3f[i * 3 + 0] = LittleFloat(in->normal3f[0]);
4615 loadmodel->brushq3.data_normal3f[i * 3 + 1] = LittleFloat(in->normal3f[1]);
4616 loadmodel->brushq3.data_normal3f[i * 3 + 2] = LittleFloat(in->normal3f[2]);
4617 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
4618 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
4619 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
4620 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
4621 // svector/tvector are calculated later in face loading
4622 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
4623 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
4624 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
4625 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
4629 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
4635 in = (int *)(mod_base + l->fileofs);
4636 if (l->filelen % sizeof(int[3]))
4637 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
4638 count = l->filelen / sizeof(*in);
4639 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4641 loadmodel->brushq3.num_triangles = count / 3;
4642 loadmodel->brushq3.data_element3i = out;
4644 for (i = 0;i < count;i++, in++, out++)
4646 *out = LittleLong(*in);
4647 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
4649 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
4655 static void Mod_Q3BSP_LoadLightmaps(lump_t *l)
4664 in = (q3dlightmap_t *)(mod_base + l->fileofs);
4665 if (l->filelen % sizeof(*in))
4666 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
4667 count = l->filelen / sizeof(*in);
4668 out = (rtexture_t **)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4670 loadmodel->brushq3.data_lightmaps = out;
4671 loadmodel->brushq3.num_lightmaps = count;
4673 // deluxemapped q3bsp files have an even number of lightmaps, and surfaces
4674 // always index even numbered ones (0, 2, 4, ...), the odd numbered
4675 // lightmaps are the deluxemaps (light direction textures), so if we
4676 // encounter any odd numbered lightmaps it is not a deluxemapped bsp, it
4677 // is also not a deluxemapped bsp if it has an odd number of lightmaps or
4679 loadmodel->brushq3.deluxemapping = true;
4680 loadmodel->brushq3.deluxemapping_modelspace = true;
4681 if (count < 2 || (count & 1))
4682 loadmodel->brushq3.deluxemapping = false;
4684 // q3map2 sometimes (or always?) makes a second blank lightmap for no
4685 // reason when only one lightmap is used, which can throw off the
4686 // deluxemapping detection method, so check 2-lightmap bsp's specifically
4687 // to see if the second lightmap is blank, if so it is not deluxemapped.
4690 c = in[count - 1].rgb;
4691 for (i = 0;i < 128*128*3;i++)
4696 // all pixels in the unused lightmap were black...
4697 loadmodel->brushq3.deluxemapping = false;
4701 // further deluxemapping detection is done in Mod_Q3BSP_LoadFaces
4703 for (i = 0;i < count;i++, in++, out++)
4704 *out = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", i), 128, 128, in->rgb, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
4707 static void Mod_Q3BSP_LoadFaces(lump_t *l)
4709 q3dface_t *in, *oldin;
4710 msurface_t *out, *oldout;
4711 int i, oldi, j, n, count, invalidelements, patchsize[2], finalwidth, finalheight, xtess, ytess, finalvertices, finaltriangles, firstvertex, firstelement, type, oldnumtriangles, oldnumtriangles2, meshvertices, meshtriangles, numvertices, numtriangles;
4712 //int *originalelement3i;
4713 //int *originalneighbor3i;
4714 float *originalvertex3f;
4715 //float *originalsvector3f;
4716 //float *originaltvector3f;
4717 float *originalnormal3f;
4718 float *originalcolor4f;
4719 float *originaltexcoordtexture2f;
4720 float *originaltexcoordlightmap2f;
4723 in = (q3dface_t *)(mod_base + l->fileofs);
4724 if (l->filelen % sizeof(*in))
4725 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
4726 count = l->filelen / sizeof(*in);
4727 out = (msurface_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4729 loadmodel->data_surfaces = out;
4730 loadmodel->num_surfaces = count;
4732 // 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
4733 if (loadmodel->brushq3.deluxemapping)
4735 for (i = 0;i < count;i++)
4737 n = LittleLong(in[i].lightmapindex);
4738 if (n >= 0 && ((n & 1) || n + 1 >= loadmodel->brushq3.num_lightmaps))
4740 loadmodel->brushq3.deluxemapping = false;
4745 Con_DPrintf("%s is %sdeluxemapped\n", loadmodel->name, loadmodel->brushq3.deluxemapping ? "" : "not ");
4753 for (;i < count;i++, in++, out++)
4755 // check face type first
4756 type = LittleLong(in->type);
4757 if (type != Q3FACETYPE_POLYGON
4758 && type != Q3FACETYPE_PATCH
4759 && type != Q3FACETYPE_MESH
4760 && type != Q3FACETYPE_FLARE)
4762 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
4766 n = LittleLong(in->textureindex);
4767 if (n < 0 || n >= loadmodel->num_textures)
4769 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
4772 out->texture = loadmodel->data_textures + n;
4773 n = LittleLong(in->effectindex);
4774 if (n < -1 || n >= loadmodel->brushq3.num_effects)
4776 if (developer.integer >= 100)
4777 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
4783 out->effect = loadmodel->brushq3.data_effects + n;
4784 n = LittleLong(in->lightmapindex);
4785 if (n >= loadmodel->brushq3.num_lightmaps)
4787 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_lightmaps);
4794 out->lightmaptexture = NULL;
4795 out->deluxemaptexture = r_texture_blanknormalmap;
4799 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n];
4800 if (loadmodel->brushq3.deluxemapping)
4801 out->deluxemaptexture = loadmodel->brushq3.data_lightmaps[n+1];
4803 out->deluxemaptexture = r_texture_blanknormalmap;
4806 firstvertex = LittleLong(in->firstvertex);
4807 numvertices = LittleLong(in->numvertices);
4808 firstelement = LittleLong(in->firstelement);
4809 numtriangles = LittleLong(in->numelements) / 3;
4810 if (numtriangles * 3 != LittleLong(in->numelements))
4812 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));
4815 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
4817 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);
4820 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
4822 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);
4827 case Q3FACETYPE_POLYGON:
4828 case Q3FACETYPE_MESH:
4829 // no processing necessary
4831 case Q3FACETYPE_PATCH:
4832 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4833 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4834 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))
4836 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
4839 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4840 // convert patch to Q3FACETYPE_MESH
4841 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4842 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4843 // bound to user settings
4844 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4845 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4846 // bound to sanity settings
4847 xtess = bound(1, xtess, 1024);
4848 ytess = bound(1, ytess, 1024);
4849 // bound to user limit on vertices
4850 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4857 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4858 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4859 numvertices = finalwidth * finalheight;
4860 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4862 case Q3FACETYPE_FLARE:
4863 if (developer.integer >= 100)
4864 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
4868 out->num_vertices = numvertices;
4869 out->num_triangles = numtriangles;
4870 meshvertices += out->num_vertices;
4871 meshtriangles += out->num_triangles;
4877 Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true, false);
4880 for (;i < count && meshvertices + out->num_vertices <= loadmodel->surfmesh.num_vertices;i++, in++, out++)
4882 if (out->num_vertices < 3 || out->num_triangles < 1)
4885 type = LittleLong(in->type);
4886 firstvertex = LittleLong(in->firstvertex);
4887 firstelement = LittleLong(in->firstelement);
4888 out->num_firstvertex = meshvertices;
4889 out->num_firsttriangle = meshtriangles;
4892 case Q3FACETYPE_POLYGON:
4893 case Q3FACETYPE_MESH:
4894 // no processing necessary
4895 for (j = 0;j < out->num_vertices;j++)
4897 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
4898 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
4899 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
4900 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 0];
4901 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 1];
4902 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 2];
4903 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
4904 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
4905 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
4906 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
4907 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
4908 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
4909 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
4910 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
4912 for (j = 0;j < out->num_triangles*3;j++)
4913 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
4915 case Q3FACETYPE_PATCH:
4916 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4917 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4918 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4919 originalnormal3f = loadmodel->brushq3.data_normal3f + firstvertex * 3;
4920 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
4921 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
4922 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
4923 // convert patch to Q3FACETYPE_MESH
4924 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4925 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4926 // bound to user settings
4927 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4928 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4929 // bound to sanity settings
4930 xtess = bound(1, xtess, 1024);
4931 ytess = bound(1, ytess, 1024);
4932 // bound to user limit on vertices
4933 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4940 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4941 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4942 finalvertices = finalwidth * finalheight;
4943 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4944 type = Q3FACETYPE_MESH;
4945 // generate geometry
4946 // (note: normals are skipped because they get recalculated)
4947 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4948 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalnormal3f, xtess, ytess);
4949 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
4950 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
4951 Q3PatchTesselateFloat(4, sizeof(float[4]), (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
4952 Q3PatchTriangleElements((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
4953 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);
4954 if (developer.integer >= 100)
4956 if (out->num_triangles < finaltriangles)
4957 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);
4959 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);
4961 // q3map does not put in collision brushes for curves... ugh
4962 // build the lower quality collision geometry
4963 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4964 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4965 // bound to user settings
4966 xtess = bound(r_subdivisions_collision_mintess.integer, xtess, r_subdivisions_collision_maxtess.integer);
4967 ytess = bound(r_subdivisions_collision_mintess.integer, ytess, r_subdivisions_collision_maxtess.integer);
4968 // bound to sanity settings
4969 xtess = bound(1, xtess, 1024);
4970 ytess = bound(1, ytess, 1024);
4971 // bound to user limit on vertices
4972 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_collision_maxvertices.integer, 262144))
4979 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4980 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4981 finalvertices = finalwidth * finalheight;
4982 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4984 out->data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
4985 out->data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
4986 out->num_collisionvertices = finalvertices;
4987 out->num_collisiontriangles = finaltriangles;
4988 Q3PatchTesselateFloat(3, sizeof(float[3]), out->data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4989 Q3PatchTriangleElements(out->data_collisionelement3i, finalwidth, finalheight, 0);
4991 //Mod_SnapVertices(3, out->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), 0.25);
4992 Mod_SnapVertices(3, out->num_collisionvertices, out->data_collisionvertex3f, 1);
4994 oldnumtriangles = out->num_triangles;
4995 oldnumtriangles2 = out->num_collisiontriangles;
4996 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(out->num_collisiontriangles, out->data_collisionelement3i, out->data_collisionelement3i, out->data_collisionvertex3f);
4997 if (developer.integer >= 100)
4998 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);
5003 meshvertices += out->num_vertices;
5004 meshtriangles += out->num_triangles;
5005 for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
5006 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)
5008 if (invalidelements)
5010 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);
5011 for (j = 0;j < out->num_triangles * 3;j++)
5013 Con_Printf(" %i", (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
5014 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)
5015 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
5019 // calculate a bounding box
5020 VectorClear(out->mins);
5021 VectorClear(out->maxs);
5022 if (out->num_vertices)
5024 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->mins);
5025 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->maxs);
5026 for (j = 1, v = (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
5028 out->mins[0] = min(out->mins[0], v[0]);
5029 out->maxs[0] = max(out->maxs[0], v[0]);
5030 out->mins[1] = min(out->mins[1], v[1]);
5031 out->maxs[1] = max(out->maxs[1], v[1]);
5032 out->mins[2] = min(out->mins[2], v[2]);
5033 out->maxs[2] = max(out->maxs[2], v[2]);
5035 out->mins[0] -= 1.0f;
5036 out->mins[1] -= 1.0f;
5037 out->mins[2] -= 1.0f;
5038 out->maxs[0] += 1.0f;
5039 out->maxs[1] += 1.0f;
5040 out->maxs[2] += 1.0f;
5042 // set lightmap styles for consistency with q1bsp
5043 //out->lightmapinfo->styles[0] = 0;
5044 //out->lightmapinfo->styles[1] = 255;
5045 //out->lightmapinfo->styles[2] = 255;
5046 //out->lightmapinfo->styles[3] = 255;
5049 // for per pixel lighting
5050 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);
5052 // free the no longer needed vertex data
5053 loadmodel->brushq3.num_vertices = 0;
5054 if (loadmodel->brushq3.data_vertex3f)
5055 Mem_Free(loadmodel->brushq3.data_vertex3f);
5056 loadmodel->brushq3.data_vertex3f = NULL;
5057 loadmodel->brushq3.data_normal3f = NULL;
5058 loadmodel->brushq3.data_texcoordtexture2f = NULL;
5059 loadmodel->brushq3.data_texcoordlightmap2f = NULL;
5060 loadmodel->brushq3.data_color4f = NULL;
5061 // free the no longer needed triangle data
5062 loadmodel->brushq3.num_triangles = 0;
5063 if (loadmodel->brushq3.data_element3i)
5064 Mem_Free(loadmodel->brushq3.data_element3i);
5065 loadmodel->brushq3.data_element3i = NULL;
5068 static void Mod_Q3BSP_LoadModels(lump_t *l)
5072 int i, j, n, c, count;
5074 in = (q3dmodel_t *)(mod_base + l->fileofs);
5075 if (l->filelen % sizeof(*in))
5076 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
5077 count = l->filelen / sizeof(*in);
5078 out = (q3dmodel_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5080 loadmodel->brushq3.data_models = out;
5081 loadmodel->brushq3.num_models = count;
5083 for (i = 0;i < count;i++, in++, out++)
5085 for (j = 0;j < 3;j++)
5087 out->mins[j] = LittleFloat(in->mins[j]);
5088 out->maxs[j] = LittleFloat(in->maxs[j]);
5090 n = LittleLong(in->firstface);
5091 c = LittleLong(in->numfaces);
5092 if (n < 0 || n + c > loadmodel->num_surfaces)
5093 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)", n, n + c, loadmodel->num_surfaces);
5096 n = LittleLong(in->firstbrush);
5097 c = LittleLong(in->numbrushes);
5098 if (n < 0 || n + c > loadmodel->brush.num_brushes)
5099 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)", n, n + c, loadmodel->brush.num_brushes);
5100 out->firstbrush = n;
5101 out->numbrushes = c;
5105 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
5111 in = (int *)(mod_base + l->fileofs);
5112 if (l->filelen % sizeof(*in))
5113 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
5114 count = l->filelen / sizeof(*in);
5115 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5117 loadmodel->brush.data_leafbrushes = out;
5118 loadmodel->brush.num_leafbrushes = count;
5120 for (i = 0;i < count;i++, in++, out++)
5122 n = LittleLong(*in);
5123 if (n < 0 || n >= loadmodel->brush.num_brushes)
5124 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)", n, loadmodel->brush.num_brushes);
5129 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
5135 in = (int *)(mod_base + l->fileofs);
5136 if (l->filelen % sizeof(*in))
5137 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
5138 count = l->filelen / sizeof(*in);
5139 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5141 loadmodel->brush.data_leafsurfaces = out;
5142 loadmodel->brush.num_leafsurfaces = count;
5144 for (i = 0;i < count;i++, in++, out++)
5146 n = LittleLong(*in);
5147 if (n < 0 || n >= loadmodel->num_surfaces)
5148 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)", n, loadmodel->num_surfaces);
5153 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
5157 int i, j, n, c, count;
5159 in = (q3dleaf_t *)(mod_base + l->fileofs);
5160 if (l->filelen % sizeof(*in))
5161 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
5162 count = l->filelen / sizeof(*in);
5163 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5165 loadmodel->brush.data_leafs = out;
5166 loadmodel->brush.num_leafs = count;
5168 for (i = 0;i < count;i++, in++, out++)
5172 out->clusterindex = LittleLong(in->clusterindex);
5173 out->areaindex = LittleLong(in->areaindex);
5174 for (j = 0;j < 3;j++)
5176 // yes the mins/maxs are ints
5177 out->mins[j] = LittleLong(in->mins[j]) - 1;
5178 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5180 n = LittleLong(in->firstleafface);
5181 c = LittleLong(in->numleaffaces);
5182 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
5183 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)", n, n + c, loadmodel->brush.num_leafsurfaces);
5184 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
5185 out->numleafsurfaces = c;
5186 n = LittleLong(in->firstleafbrush);
5187 c = LittleLong(in->numleafbrushes);
5188 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
5189 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)", n, n + c, loadmodel->brush.num_leafbrushes);
5190 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
5191 out->numleafbrushes = c;
5195 static void Mod_Q3BSP_LoadNodes(lump_t *l)
5201 in = (q3dnode_t *)(mod_base + l->fileofs);
5202 if (l->filelen % sizeof(*in))
5203 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
5204 count = l->filelen / sizeof(*in);
5205 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5207 loadmodel->brush.data_nodes = out;
5208 loadmodel->brush.num_nodes = count;
5210 for (i = 0;i < count;i++, in++, out++)
5213 n = LittleLong(in->planeindex);
5214 if (n < 0 || n >= loadmodel->brush.num_planes)
5215 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5216 out->plane = loadmodel->brush.data_planes + n;
5217 for (j = 0;j < 2;j++)
5219 n = LittleLong(in->childrenindex[j]);
5222 if (n >= loadmodel->brush.num_nodes)
5223 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)", n, loadmodel->brush.num_nodes);
5224 out->children[j] = loadmodel->brush.data_nodes + n;
5229 if (n >= loadmodel->brush.num_leafs)
5230 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)", n, loadmodel->brush.num_leafs);
5231 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
5234 for (j = 0;j < 3;j++)
5236 // yes the mins/maxs are ints
5237 out->mins[j] = LittleLong(in->mins[j]) - 1;
5238 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5242 // set the parent pointers
5243 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
5246 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
5249 q3dlightgrid_t *out;
5252 in = (q3dlightgrid_t *)(mod_base + l->fileofs);
5253 if (l->filelen % sizeof(*in))
5254 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
5255 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
5256 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
5257 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
5258 loadmodel->brushq3.num_lightgrid_imins[0] = (int)ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5259 loadmodel->brushq3.num_lightgrid_imins[1] = (int)ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5260 loadmodel->brushq3.num_lightgrid_imins[2] = (int)ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5261 loadmodel->brushq3.num_lightgrid_imaxs[0] = (int)floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5262 loadmodel->brushq3.num_lightgrid_imaxs[1] = (int)floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5263 loadmodel->brushq3.num_lightgrid_imaxs[2] = (int)floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5264 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
5265 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
5266 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
5267 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
5268 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]);
5269 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]);
5271 // if lump is empty there is nothing to load, we can deal with that in the LightPoint code
5274 if (l->filelen < count * (int)sizeof(*in))
5275 Host_Error("Mod_Q3BSP_LoadLightGrid: invalid lightgrid lump size %i bytes, should be %i bytes (%ix%ix%i)", l->filelen, (int)(count * sizeof(*in)), loadmodel->brushq3.num_lightgrid_dimensions[0], loadmodel->brushq3.num_lightgrid_dimensions[1], loadmodel->brushq3.num_lightgrid_dimensions[2]);
5276 if (l->filelen != count * (int)sizeof(*in))
5277 Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", (int)(count * sizeof(*in)), l->filelen);
5278 out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5279 loadmodel->brushq3.data_lightgrid = out;
5280 loadmodel->brushq3.num_lightgrid = count;
5281 // no swapping or validation necessary
5282 memcpy(out, in, count * (int)sizeof(*out));
5286 static void Mod_Q3BSP_LoadPVS(lump_t *l)
5291 if (l->filelen == 0)
5294 // unvised maps often have cluster indices even without pvs, so check
5295 // leafs to find real number of clusters
5296 loadmodel->brush.num_pvsclusters = 1;
5297 for (i = 0;i < loadmodel->brush.num_leafs;i++)
5298 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
5301 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
5302 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5303 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5304 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
5308 in = (q3dpvs_t *)(mod_base + l->fileofs);
5310 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
5312 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
5313 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
5314 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
5315 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
5316 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5317 if (l->filelen < totalchains + (int)sizeof(*in))
5318 Host_Error("Mod_Q3BSP_LoadPVS: lump too small ((numclusters = %i) * (chainlength = %i) + sizeof(q3dpvs_t) == %i bytes, lump is %i bytes)", loadmodel->brush.num_pvsclusters, loadmodel->brush.num_pvsclusterbytes, (int)(totalchains + sizeof(*in)), l->filelen);
5320 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5321 memcpy(loadmodel->brush.data_pvsclusters, (unsigned char *)(in + 1), totalchains);
5324 static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
5326 int i, j, k, index[3];
5327 float transformed[3], blend1, blend2, blend, yaw, pitch, sinpitch, stylescale;
5328 q3dlightgrid_t *a, *s;
5330 // scale lighting by lightstyle[0] so that darkmode in dpmod works properly
5331 stylescale = r_refdef.lightstylevalue[0] * (1.0f / 264.0f);
5333 if (!model->brushq3.num_lightgrid)
5335 ambientcolor[0] = stylescale;
5336 ambientcolor[1] = stylescale;
5337 ambientcolor[2] = stylescale;
5341 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
5342 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
5343 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
5344 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
5345 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
5346 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
5347 index[0] = (int)floor(transformed[0]);
5348 index[1] = (int)floor(transformed[1]);
5349 index[2] = (int)floor(transformed[2]);
5350 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
5352 // now lerp the values
5353 VectorClear(diffusenormal);
5354 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
5355 for (k = 0;k < 2;k++)
5357 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
5358 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
5360 for (j = 0;j < 2;j++)
5362 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
5363 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
5365 for (i = 0;i < 2;i++)
5367 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0]))) * stylescale;
5368 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
5370 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
5371 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
5372 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
5373 pitch = s->diffusepitch * M_PI / 128;
5374 yaw = s->diffuseyaw * M_PI / 128;
5375 sinpitch = sin(pitch);
5376 diffusenormal[0] += blend * (cos(yaw) * sinpitch);
5377 diffusenormal[1] += blend * (sin(yaw) * sinpitch);
5378 diffusenormal[2] += blend * (cos(pitch));
5379 //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)));
5384 // normalize the light direction before turning
5385 VectorNormalize(diffusenormal);
5386 //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]);
5389 static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t point, int markframe)
5394 // find which leaf the point is in
5396 node = node->children[DotProduct(point, node->plane->normal) < node->plane->dist];
5397 // point trace the brushes
5398 leaf = (mleaf_t *)node;
5399 for (i = 0;i < leaf->numleafbrushes;i++)
5401 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5402 if (brush && brush->markframe != markframe && BoxesOverlap(point, point, brush->mins, brush->maxs))
5404 brush->markframe = markframe;
5405 Collision_TracePointBrushFloat(trace, point, brush);
5408 // can't do point traces on curves (they have no thickness)
5411 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)
5413 int i, startside, endside;
5414 float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
5416 msurface_t *surface;
5419 // walk the tree until we hit a leaf, recursing for any split cases
5422 plane = node->plane;
5423 // axial planes are much more common than non-axial, so an optimized
5424 // axial case pays off here
5425 if (plane->type < 3)
5427 dist1 = start[plane->type] - plane->dist;
5428 dist2 = end[plane->type] - plane->dist;
5432 dist1 = DotProduct(start, plane->normal) - plane->dist;
5433 dist2 = DotProduct(end, plane->normal) - plane->dist;
5435 startside = dist1 < 0;
5436 endside = dist2 < 0;
5437 if (startside == endside)
5439 // most of the time the line fragment is on one side of the plane
5440 node = node->children[startside];
5444 // line crosses node plane, split the line
5445 dist1 = PlaneDiff(linestart, plane);
5446 dist2 = PlaneDiff(lineend, plane);
5447 midfrac = dist1 / (dist1 - dist2);
5448 VectorLerp(linestart, midfrac, lineend, mid);
5449 // take the near side first
5450 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5451 // if we found an impact on the front side, don't waste time
5452 // exploring the far side
5453 if (midfrac <= trace->realfraction)
5454 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5459 nodesegmentmins[0] = min(start[0], end[0]) - 1;
5460 nodesegmentmins[1] = min(start[1], end[1]) - 1;
5461 nodesegmentmins[2] = min(start[2], end[2]) - 1;
5462 nodesegmentmaxs[0] = max(start[0], end[0]) + 1;
5463 nodesegmentmaxs[1] = max(start[1], end[1]) + 1;
5464 nodesegmentmaxs[2] = max(start[2], end[2]) + 1;
5465 // line trace the brushes
5466 leaf = (mleaf_t *)node;
5467 for (i = 0;i < leaf->numleafbrushes;i++)
5469 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5470 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5472 brush->markframe = markframe;
5473 Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
5476 // can't do point traces on curves (they have no thickness)
5477 if (mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
5479 // line trace the curves
5480 for (i = 0;i < leaf->numleafsurfaces;i++)
5482 surface = model->data_surfaces + leaf->firstleafsurface[i];
5483 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5485 surface->collisionmarkframe = markframe;
5486 Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5492 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)
5498 msurface_t *surface;
5500 float nodesegmentmins[3], nodesegmentmaxs[3];
5501 // walk the tree until we hit a leaf, recursing for any split cases
5504 plane = node->plane;
5505 // axial planes are much more common than non-axial, so an optimized
5506 // axial case pays off here
5507 if (plane->type < 3)
5509 // this is an axial plane, compare bounding box directly to it and
5510 // recurse sides accordingly
5511 // recurse down node sides
5512 // use an inlined axial BoxOnPlaneSide to slightly reduce overhead
5513 //sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, plane);
5514 //sides = ((segmentmaxs[plane->type] >= plane->dist) | ((segmentmins[plane->type] < plane->dist) << 1));
5515 sides = ((segmentmaxs[plane->type] >= plane->dist) + ((segmentmins[plane->type] < plane->dist) * 2));
5519 // this is a non-axial plane, so check if the start and end boxes
5520 // are both on one side of the plane to handle 'diagonal' cases
5521 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, plane);
5525 // segment crosses plane
5526 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5529 // if sides == 0 then the trace itself is bogus (Not A Number values),
5530 // in this case we simply pretend the trace hit nothing
5532 return; // ERROR: NAN bounding box!
5533 // take whichever side the segment box is on
5534 node = node->children[sides - 1];
5536 nodesegmentmins[0] = max(segmentmins[0], node->mins[0] - 1);
5537 nodesegmentmins[1] = max(segmentmins[1], node->mins[1] - 1);
5538 nodesegmentmins[2] = max(segmentmins[2], node->mins[2] - 1);
5539 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0] + 1);
5540 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1] + 1);
5541 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2] + 1);
5543 leaf = (mleaf_t *)node;
5544 for (i = 0;i < leaf->numleafbrushes;i++)
5546 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5547 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5549 brush->markframe = markframe;
5550 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
5553 if (mod_q3bsp_curves_collisions.integer)
5555 for (i = 0;i < leaf->numleafsurfaces;i++)
5557 surface = model->data_surfaces + leaf->firstleafsurface[i];
5558 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5560 surface->collisionmarkframe = markframe;
5561 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);
5567 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)
5570 float segmentmins[3], segmentmaxs[3];
5571 static int markframe = 0;
5572 msurface_t *surface;
5574 memset(trace, 0, sizeof(*trace));
5575 trace->fraction = 1;
5576 trace->realfraction = 1;
5577 trace->hitsupercontentsmask = hitsupercontentsmask;
5578 if (mod_q3bsp_optimizedtraceline.integer && VectorLength2(boxmins) + VectorLength2(boxmaxs) == 0)
5580 if (VectorCompare(start, end))
5583 if (model->brush.submodel)
5585 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5586 if (brush->colbrushf)
5587 Collision_TracePointBrushFloat(trace, start, brush->colbrushf);
5590 Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, ++markframe);
5595 segmentmins[0] = min(start[0], end[0]) - 1;
5596 segmentmins[1] = min(start[1], end[1]) - 1;
5597 segmentmins[2] = min(start[2], end[2]) - 1;
5598 segmentmaxs[0] = max(start[0], end[0]) + 1;
5599 segmentmaxs[1] = max(start[1], end[1]) + 1;
5600 segmentmaxs[2] = max(start[2], end[2]) + 1;
5601 if (model->brush.submodel)
5603 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5604 if (brush->colbrushf)
5605 Collision_TraceLineBrushFloat(trace, start, end, brush->colbrushf, brush->colbrushf);
5606 if (mod_q3bsp_curves_collisions.integer)
5607 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5608 if (surface->num_collisiontriangles)
5609 Collision_TraceLineTriangleMeshFloat(trace, start, end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5612 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, end, 0, 1, start, end, ++markframe, segmentmins, segmentmaxs);
5617 // box trace, performed as brush trace
5618 colbrushf_t *thisbrush_start, *thisbrush_end;
5619 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
5620 segmentmins[0] = min(start[0], end[0]) + boxmins[0] - 1;
5621 segmentmins[1] = min(start[1], end[1]) + boxmins[1] - 1;
5622 segmentmins[2] = min(start[2], end[2]) + boxmins[2] - 1;
5623 segmentmaxs[0] = max(start[0], end[0]) + boxmaxs[0] + 1;
5624 segmentmaxs[1] = max(start[1], end[1]) + boxmaxs[1] + 1;
5625 segmentmaxs[2] = max(start[2], end[2]) + boxmaxs[2] + 1;
5626 VectorAdd(start, boxmins, boxstartmins);
5627 VectorAdd(start, boxmaxs, boxstartmaxs);
5628 VectorAdd(end, boxmins, boxendmins);
5629 VectorAdd(end, boxmaxs, boxendmaxs);
5630 thisbrush_start = Collision_BrushForBox(&identitymatrix, boxstartmins, boxstartmaxs, 0, 0, NULL);
5631 thisbrush_end = Collision_BrushForBox(&identitymatrix, boxendmins, boxendmaxs, 0, 0, NULL);
5632 if (model->brush.submodel)
5634 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5635 if (brush->colbrushf)
5636 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush->colbrushf, brush->colbrushf);
5637 if (mod_q3bsp_curves_collisions.integer)
5638 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5639 if (surface->num_collisiontriangles)
5640 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);
5643 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, model->brush.data_nodes, thisbrush_start, thisbrush_end, ++markframe, segmentmins, segmentmaxs);
5647 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
5649 int supercontents = 0;
5650 if (nativecontents & CONTENTSQ3_SOLID)
5651 supercontents |= SUPERCONTENTS_SOLID;
5652 if (nativecontents & CONTENTSQ3_WATER)
5653 supercontents |= SUPERCONTENTS_WATER;
5654 if (nativecontents & CONTENTSQ3_SLIME)
5655 supercontents |= SUPERCONTENTS_SLIME;
5656 if (nativecontents & CONTENTSQ3_LAVA)
5657 supercontents |= SUPERCONTENTS_LAVA;
5658 if (nativecontents & CONTENTSQ3_BODY)
5659 supercontents |= SUPERCONTENTS_BODY;
5660 if (nativecontents & CONTENTSQ3_CORPSE)
5661 supercontents |= SUPERCONTENTS_CORPSE;
5662 if (nativecontents & CONTENTSQ3_NODROP)
5663 supercontents |= SUPERCONTENTS_NODROP;
5664 if (nativecontents & CONTENTSQ3_PLAYERCLIP)
5665 supercontents |= SUPERCONTENTS_PLAYERCLIP;
5666 if (nativecontents & CONTENTSQ3_MONSTERCLIP)
5667 supercontents |= SUPERCONTENTS_MONSTERCLIP;
5668 if (nativecontents & CONTENTSQ3_DONOTENTER)
5669 supercontents |= SUPERCONTENTS_DONOTENTER;
5670 return supercontents;
5673 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
5675 int nativecontents = 0;
5676 if (supercontents & SUPERCONTENTS_SOLID)
5677 nativecontents |= CONTENTSQ3_SOLID;
5678 if (supercontents & SUPERCONTENTS_WATER)
5679 nativecontents |= CONTENTSQ3_WATER;
5680 if (supercontents & SUPERCONTENTS_SLIME)
5681 nativecontents |= CONTENTSQ3_SLIME;
5682 if (supercontents & SUPERCONTENTS_LAVA)
5683 nativecontents |= CONTENTSQ3_LAVA;
5684 if (supercontents & SUPERCONTENTS_BODY)
5685 nativecontents |= CONTENTSQ3_BODY;
5686 if (supercontents & SUPERCONTENTS_CORPSE)
5687 nativecontents |= CONTENTSQ3_CORPSE;
5688 if (supercontents & SUPERCONTENTS_NODROP)
5689 nativecontents |= CONTENTSQ3_NODROP;
5690 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
5691 nativecontents |= CONTENTSQ3_PLAYERCLIP;
5692 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
5693 nativecontents |= CONTENTSQ3_MONSTERCLIP;
5694 if (supercontents & SUPERCONTENTS_DONOTENTER)
5695 nativecontents |= CONTENTSQ3_DONOTENTER;
5696 return nativecontents;
5699 void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
5704 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
5705 node = node->children[1];
5707 numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
5708 if (loadmodel->brush.num_leafs < numleafs)
5709 loadmodel->brush.num_leafs = numleafs;
5712 void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
5714 int i, j, numshadowmeshtriangles;
5715 q3dheader_t *header;
5716 float corner[3], yawradius, modelradius;
5717 msurface_t *surface;
5719 mod->type = mod_brushq3;
5720 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
5723 header = (q3dheader_t *)buffer;
5725 i = LittleLong(header->version);
5726 if (i != Q3BSPVERSION)
5727 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
5728 mod->brush.ishlbsp = false;
5729 mod->brush.ismcbsp = false;
5730 if (loadmodel->isworldmodel)
5732 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
5733 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
5736 mod->soundfromcenter = true;
5737 mod->TraceBox = Mod_Q3BSP_TraceBox;
5738 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
5739 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
5740 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
5741 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
5742 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
5743 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
5744 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
5745 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
5746 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
5747 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5748 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
5749 mod->Draw = R_Q1BSP_Draw;
5750 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
5751 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
5752 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
5753 mod->DrawLight = R_Q1BSP_DrawLight;
5755 mod_base = (unsigned char *)header;
5757 // swap all the lumps
5758 header->ident = LittleLong(header->ident);
5759 header->version = LittleLong(header->version);
5760 for (i = 0;i < Q3HEADER_LUMPS;i++)
5762 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
5763 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
5766 mod->brush.qw_md4sum = 0;
5767 mod->brush.qw_md4sum2 = 0;
5768 for (i = 0;i < Q3HEADER_LUMPS;i++)
5770 if (i == Q3LUMP_ENTITIES)
5772 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
5773 if (i == Q3LUMP_PVS || i == Q3LUMP_LEAFS || i == Q3LUMP_NODES)
5775 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
5778 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
5779 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
5780 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
5781 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
5782 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
5783 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
5784 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
5785 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
5786 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS]);
5787 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
5788 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
5789 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
5790 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
5791 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
5792 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
5793 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
5794 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
5795 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
5797 // the MakePortals code works fine on the q3bsp data as well
5798 Mod_Q1BSP_MakePortals();
5800 // FIXME: shader alpha should replace r_wateralpha support in q3bsp
5801 loadmodel->brush.supportwateralpha = true;
5803 // make a single combined shadow mesh to allow optimized shadow volume creation
5804 numshadowmeshtriangles = 0;
5805 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5807 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
5808 numshadowmeshtriangles += surface->num_triangles;
5810 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
5811 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5812 if (surface->num_triangles > 0)
5813 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));
5814 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
5815 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
5817 loadmodel->brush.num_leafs = 0;
5818 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
5820 if (loadmodel->isworldmodel)
5822 // clear out any stale submodels or worldmodels lying around
5823 // if we did this clear before now, an error might abort loading and
5824 // leave things in a bad state
5825 Mod_RemoveStaleWorldModels(loadmodel);
5829 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
5834 // LordHavoc: only register submodels if it is the world
5835 // (prevents external bsp models from replacing world submodels with
5837 if (!loadmodel->isworldmodel)
5839 // duplicate the basic information
5840 sprintf(name, "*%i", i);
5841 mod = Mod_FindName(name);
5843 strlcpy(mod->name, name, sizeof(mod->name));
5844 // textures and memory belong to the main model
5845 mod->texturepool = NULL;
5846 mod->mempool = NULL;
5847 mod->brush.GetPVS = NULL;
5848 mod->brush.FatPVS = NULL;
5849 mod->brush.BoxTouchingPVS = NULL;
5850 mod->brush.BoxTouchingLeafPVS = NULL;
5851 mod->brush.BoxTouchingVisibleLeafs = NULL;
5852 mod->brush.FindBoxClusters = NULL;
5853 mod->brush.LightPoint = NULL;
5854 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5856 mod->brush.submodel = i;
5858 // make the model surface list (used by shadowing/lighting)
5859 mod->firstmodelsurface = mod->brushq3.data_models[i].firstface;
5860 mod->nummodelsurfaces = mod->brushq3.data_models[i].numfaces;
5861 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
5862 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
5863 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
5864 for (j = 0;j < mod->nummodelsurfaces;j++)
5865 mod->surfacelist[j] = mod->firstmodelsurface + j;
5867 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
5868 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
5869 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
5870 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
5871 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
5872 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
5873 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
5874 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
5875 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
5876 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
5877 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
5878 mod->yawmins[2] = mod->normalmins[2];
5879 mod->yawmaxs[2] = mod->normalmaxs[2];
5880 mod->radius = modelradius;
5881 mod->radius2 = modelradius * modelradius;
5883 for (j = 0;j < mod->nummodelsurfaces;j++)
5884 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->surfaceflags & Q3SURFACEFLAG_SKY)
5886 if (j < mod->nummodelsurfaces)
5887 mod->DrawSky = R_Q1BSP_DrawSky;
5891 void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
5893 int i = LittleLong(((int *)buffer)[1]);
5894 if (i == Q3BSPVERSION)
5895 Mod_Q3BSP_Load(mod,buffer, bufferend);
5896 else if (i == Q2BSPVERSION)
5897 Mod_Q2BSP_Load(mod,buffer, bufferend);
5899 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i", i);
5902 void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend)
5904 Host_Error("Mod_MAP_Load: not yet implemented");