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_TraceLineOfSight_RecursiveNodeCheck(mnode_t *node, double p1[3], double p2[3])
998 // find the point distances
999 mplane_t *plane = node->plane;
1000 if (plane->type < 3)
1002 t1 = p1[plane->type] - plane->dist;
1003 t2 = p2[plane->type] - plane->dist;
1007 t1 = DotProduct (plane->normal, p1) - plane->dist;
1008 t2 = DotProduct (plane->normal, p2) - plane->dist;
1015 node = node->children[1];
1024 node = node->children[0];
1030 midf = t1 / (t1 - t2);
1031 VectorLerp(p1, midf, p2, mid);
1033 // recurse both sides, front side first
1034 // return 2 if empty is followed by solid (hit something)
1035 // do not return 2 if both are solid or both empty,
1036 // or if start is solid and end is empty
1037 // as these degenerate cases usually indicate the eye is in solid and
1038 // should see the target point anyway
1039 ret = Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ], p1, mid);
1042 ret = Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ^ 1], mid, p2);
1047 return ((mleaf_t *)node)->clusterindex < 0;
1050 static qboolean Mod_Q1BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end)
1052 // this function currently only supports same size start and end
1053 double tracestart[3], traceend[3];
1054 VectorCopy(start, tracestart);
1055 VectorCopy(end, traceend);
1056 return Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(model->brush.data_nodes, tracestart, traceend) != 2;
1059 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)
1063 float mid, distz = endz - startz;
1067 return false; // didn't hit anything
1069 switch (node->plane->type)
1072 node = node->children[x < node->plane->dist];
1075 node = node->children[y < node->plane->dist];
1078 side = startz < node->plane->dist;
1079 if ((endz < node->plane->dist) == side)
1081 node = node->children[side];
1084 // found an intersection
1085 mid = node->plane->dist;
1088 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
1089 front += startz * node->plane->normal[2];
1090 back += endz * node->plane->normal[2];
1091 side = front < node->plane->dist;
1092 if ((back < node->plane->dist) == side)
1094 node = node->children[side];
1097 // found an intersection
1098 mid = startz + distz * (front - node->plane->dist) / (front - back);
1102 // go down front side
1103 if (node->children[side]->plane && Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
1104 return true; // hit something
1107 // check for impact on this node
1108 if (node->numsurfaces)
1111 msurface_t *surface;
1113 surface = model->data_surfaces + node->firstsurface;
1114 for (i = 0;i < node->numsurfaces;i++, surface++)
1116 if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->lightmapinfo->samples)
1117 continue; // no lightmaps
1119 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];
1120 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];
1122 if (ds >= 0 && ds < surface->lightmapinfo->extents[0] && dt >= 0 && dt < surface->lightmapinfo->extents[1])
1124 unsigned char *lightmap;
1125 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;
1126 lmwidth = ((surface->lightmapinfo->extents[0]>>4)+1);
1127 lmheight = ((surface->lightmapinfo->extents[1]>>4)+1);
1128 line3 = lmwidth * 3; // LordHavoc: *3 for colored lighting
1129 size3 = lmwidth * lmheight * 3; // LordHavoc: *3 for colored lighting
1131 lightmap = surface->lightmapinfo->samples + ((dt>>4) * lmwidth + (ds>>4))*3; // LordHavoc: *3 for colored lighting
1133 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++)
1135 scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]];
1136 r00 += lightmap[ 0] * scale;g00 += lightmap[ 1] * scale;b00 += lightmap[ 2] * scale;
1137 r01 += lightmap[ 3] * scale;g01 += lightmap[ 4] * scale;b01 += lightmap[ 5] * scale;
1138 r10 += lightmap[line3+0] * scale;g10 += lightmap[line3+1] * scale;b10 += lightmap[line3+2] * scale;
1139 r11 += lightmap[line3+3] * scale;g11 += lightmap[line3+4] * scale;b11 += lightmap[line3+5] * scale;
1144 LordHavoc: here's the readable version of the interpolation
1145 code, not quite as easy for the compiler to optimize...
1147 dsfrac is the X position in the lightmap pixel, * 16
1148 dtfrac is the Y position in the lightmap pixel, * 16
1149 r00 is top left corner, r01 is top right corner
1150 r10 is bottom left corner, r11 is bottom right corner
1151 g and b are the same layout.
1152 r0 and r1 are the top and bottom intermediate results
1154 first we interpolate the top two points, to get the top
1157 r0 = (((r01-r00) * dsfrac) >> 4) + r00;
1158 g0 = (((g01-g00) * dsfrac) >> 4) + g00;
1159 b0 = (((b01-b00) * dsfrac) >> 4) + b00;
1161 then we interpolate the bottom two points, to get the
1164 r1 = (((r11-r10) * dsfrac) >> 4) + r10;
1165 g1 = (((g11-g10) * dsfrac) >> 4) + g10;
1166 b1 = (((b11-b10) * dsfrac) >> 4) + b10;
1168 then we interpolate the top and bottom samples to get the
1169 middle sample (the one which was requested)
1171 r = (((r1-r0) * dtfrac) >> 4) + r0;
1172 g = (((g1-g0) * dtfrac) >> 4) + g0;
1173 b = (((b1-b0) * dtfrac) >> 4) + b0;
1176 ambientcolor[0] += (float) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)) * (1.0f / 32768.0f);
1177 ambientcolor[1] += (float) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)) * (1.0f / 32768.0f);
1178 ambientcolor[2] += (float) ((((((((b11-b10) * dsfrac) >> 4) + b10)-((((b01-b00) * dsfrac) >> 4) + b00)) * dtfrac) >> 4) + ((((b01-b00) * dsfrac) >> 4) + b00)) * (1.0f / 32768.0f);
1179 return true; // success
1184 // go down back side
1185 node = node->children[side ^ 1];
1187 distz = endz - startz;
1192 void Mod_Q1BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
1194 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);
1195 // pretend lighting is coming down from above (due to lack of a lightgrid to know primary lighting direction)
1196 VectorSet(diffusenormal, 0, 0, 1);
1199 static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char *inend, unsigned char *out, unsigned char *outend)
1202 unsigned char *outstart = out;
1203 while (out < outend)
1207 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));
1217 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));
1220 for (c = *in++;c > 0;c--)
1224 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));
1235 R_Q1BSP_LoadSplitSky
1237 A sky texture is 256*128, with the right side being a masked overlay
1240 void R_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesperpixel)
1243 unsigned solidpixels[128*128], alphapixels[128*128];
1245 // if sky isn't the right size, just use it as a solid layer
1246 if (width != 256 || height != 128)
1248 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);
1249 loadmodel->brush.alphaskytexture = NULL;
1253 if (bytesperpixel == 4)
1255 for (i = 0;i < 128;i++)
1257 for (j = 0;j < 128;j++)
1259 solidpixels[(i*128) + j] = ((unsigned *)src)[i*256+j+128];
1260 alphapixels[(i*128) + j] = ((unsigned *)src)[i*256+j];
1266 // make an average value for the back to avoid
1267 // a fringe on the top level
1276 for (i = 0;i < 128;i++)
1278 for (j = 0;j < 128;j++)
1280 rgba.i = palette_complete[src[i*256 + j + 128]];
1286 rgba.b[0] = r/(128*128);
1287 rgba.b[1] = g/(128*128);
1288 rgba.b[2] = b/(128*128);
1290 for (i = 0;i < 128;i++)
1292 for (j = 0;j < 128;j++)
1294 solidpixels[(i*128) + j] = palette_complete[src[i*256 + j + 128]];
1295 alphapixels[(i*128) + j] = (p = src[i*256 + j]) ? palette_complete[p] : rgba.i;
1300 loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", 128, 128, (unsigned char *) solidpixels, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
1301 loadmodel->brush.alphaskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_alphatexture", 128, 128, (unsigned char *) alphapixels, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
1304 static void Mod_Q1BSP_LoadTextures(lump_t *l)
1306 int i, j, k, num, max, altmax, mtwidth, mtheight, *dofs, incomplete;
1308 texture_t *tx, *tx2, *anims[10], *altanims[10];
1310 unsigned char *data, *mtdata;
1312 char mapname[MAX_QPATH], name[MAX_QPATH];
1314 loadmodel->data_textures = NULL;
1316 // add two slots for notexture walls and notexture liquids
1319 m = (dmiptexlump_t *)(mod_base + l->fileofs);
1320 m->nummiptex = LittleLong (m->nummiptex);
1321 loadmodel->num_textures = m->nummiptex + 2;
1326 loadmodel->num_textures = 2;
1329 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
1331 // fill out all slots with notexture
1332 for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
1334 strlcpy(tx->name, "NO TEXTURE FOUND", sizeof(tx->name));
1337 tx->numskinframes = 1;
1338 tx->skinframerate = 1;
1339 tx->currentskinframe = tx->skinframes;
1340 tx->skinframes[0].base = r_texture_notexture;
1341 tx->backgroundcurrentskinframe = tx->backgroundskinframes;
1342 tx->basematerialflags = 0;
1343 if (i == loadmodel->num_textures - 1)
1345 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1346 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1347 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1351 tx->basematerialflags |= MATERIALFLAG_WALL;
1352 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1353 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1355 tx->currentframe = tx;
1361 s = loadmodel->name;
1362 if (!strncasecmp(s, "maps/", 5))
1364 FS_StripExtension(s, mapname, sizeof(mapname));
1366 // just to work around bounds checking when debugging with it (array index out of bounds error thing)
1368 // LordHavoc: mostly rewritten map texture loader
1369 for (i = 0;i < m->nummiptex;i++)
1371 dofs[i] = LittleLong(dofs[i]);
1372 if (dofs[i] == -1 || r_nosurftextures.integer)
1374 dmiptex = (miptex_t *)((unsigned char *)m + dofs[i]);
1376 // make sure name is no more than 15 characters
1377 for (j = 0;dmiptex->name[j] && j < 15;j++)
1378 name[j] = dmiptex->name[j];
1381 mtwidth = LittleLong(dmiptex->width);
1382 mtheight = LittleLong(dmiptex->height);
1384 j = LittleLong(dmiptex->offsets[0]);
1388 if (j < 40 || j + mtwidth * mtheight > l->filelen)
1390 Con_Printf("Texture \"%s\" in \"%s\"is corrupt or incomplete\n", dmiptex->name, loadmodel->name);
1393 mtdata = (unsigned char *)dmiptex + j;
1396 if ((mtwidth & 15) || (mtheight & 15))
1397 Con_Printf("warning: texture \"%s\" in \"%s\" is not 16 aligned\n", dmiptex->name, loadmodel->name);
1399 // LordHavoc: force all names to lowercase
1400 for (j = 0;name[j];j++)
1401 if (name[j] >= 'A' && name[j] <= 'Z')
1402 name[j] += 'a' - 'A';
1404 tx = loadmodel->data_textures + i;
1405 strlcpy(tx->name, name, sizeof(tx->name));
1406 tx->width = mtwidth;
1407 tx->height = mtheight;
1411 sprintf(tx->name, "unnamed%i", i);
1412 Con_Printf("warning: unnamed texture in %s, renaming to %s\n", loadmodel->name, tx->name);
1415 if (cls.state != ca_dedicated)
1417 // LordHavoc: HL sky textures are entirely different than quake
1418 if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == 256 && mtheight == 128)
1420 if (loadmodel->isworldmodel)
1422 data = loadimagepixels(tx->name, false, 0, 0);
1425 R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1428 else if (mtdata != NULL)
1429 R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1434 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)
1435 && !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))
1437 // did not find external texture, load it from the bsp or wad3
1438 if (loadmodel->brush.ishlbsp)
1440 // internal texture overrides wad
1441 unsigned char *pixels, *freepixels;
1442 pixels = freepixels = NULL;
1444 pixels = W_ConvertWAD3Texture(dmiptex);
1446 pixels = freepixels = W_GetTexture(tx->name);
1449 tx->width = image_width;
1450 tx->height = image_height;
1451 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);
1454 Mem_Free(freepixels);
1456 else if (mtdata) // texture included
1457 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);
1460 if (tx->skinframes[0].base == NULL)
1465 tx->skinframes[0].base = r_texture_notexture;
1469 tx->basematerialflags = 0;
1470 if (tx->name[0] == '*')
1472 // LordHavoc: some turbulent textures should not be affected by wateralpha
1473 if (strncmp(tx->name,"*lava",5)
1474 && strncmp(tx->name,"*teleport",9)
1475 && strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1476 tx->basematerialflags |= MATERIALFLAG_WATERALPHA | MATERIALFLAG_NOSHADOW;
1477 if (!strncmp(tx->name, "*lava", 5))
1479 tx->supercontents = mod_q1bsp_texture_lava.supercontents;
1480 tx->surfaceflags = mod_q1bsp_texture_lava.surfaceflags;
1482 else if (!strncmp(tx->name, "*slime", 6))
1484 tx->supercontents = mod_q1bsp_texture_slime.supercontents;
1485 tx->surfaceflags = mod_q1bsp_texture_slime.surfaceflags;
1489 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1490 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1492 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1494 else if (tx->name[0] == 's' && tx->name[1] == 'k' && tx->name[2] == 'y')
1496 tx->supercontents = mod_q1bsp_texture_sky.supercontents;
1497 tx->surfaceflags = mod_q1bsp_texture_sky.surfaceflags;
1498 tx->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
1502 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1503 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1504 tx->basematerialflags |= MATERIALFLAG_WALL;
1506 if (tx->skinframes[0].fog)
1507 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_NOSHADOW;
1509 // start out with no animation
1510 tx->currentframe = tx;
1513 // sequence the animations
1514 for (i = 0;i < m->nummiptex;i++)
1516 tx = loadmodel->data_textures + i;
1517 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1519 if (tx->anim_total[0] || tx->anim_total[1])
1520 continue; // already sequenced
1522 // find the number of frames in the animation
1523 memset(anims, 0, sizeof(anims));
1524 memset(altanims, 0, sizeof(altanims));
1526 for (j = i;j < m->nummiptex;j++)
1528 tx2 = loadmodel->data_textures + j;
1529 if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
1533 if (num >= '0' && num <= '9')
1534 anims[num - '0'] = tx2;
1535 else if (num >= 'a' && num <= 'j')
1536 altanims[num - 'a'] = tx2;
1538 Con_Printf("Bad animating texture %s\n", tx->name);
1542 for (j = 0;j < 10;j++)
1549 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
1552 for (j = 0;j < max;j++)
1556 Con_Printf("Missing frame %i of %s\n", j, tx->name);
1560 for (j = 0;j < altmax;j++)
1564 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
1573 // if there is no alternate animation, duplicate the primary
1574 // animation into the alternate
1576 for (k = 0;k < 10;k++)
1577 altanims[k] = anims[k];
1580 // link together the primary animation
1581 for (j = 0;j < max;j++)
1584 tx2->animated = true;
1585 tx2->anim_total[0] = max;
1586 tx2->anim_total[1] = altmax;
1587 for (k = 0;k < 10;k++)
1589 tx2->anim_frames[0][k] = anims[k];
1590 tx2->anim_frames[1][k] = altanims[k];
1594 // if there really is an alternate anim...
1595 if (anims[0] != altanims[0])
1597 // link together the alternate animation
1598 for (j = 0;j < altmax;j++)
1601 tx2->animated = true;
1602 // the primary/alternate are reversed here
1603 tx2->anim_total[0] = altmax;
1604 tx2->anim_total[1] = max;
1605 for (k = 0;k < 10;k++)
1607 tx2->anim_frames[0][k] = altanims[k];
1608 tx2->anim_frames[1][k] = anims[k];
1615 static void Mod_Q1BSP_LoadLighting(lump_t *l)
1618 unsigned char *in, *out, *data, d;
1619 char litfilename[MAX_QPATH];
1620 char dlitfilename[MAX_QPATH];
1621 fs_offset_t filesize;
1622 if (loadmodel->brush.ishlbsp) // LordHavoc: load the colored lighting data straight
1624 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1625 for (i=0; i<l->filelen; i++)
1626 loadmodel->brushq1.lightdata[i] = mod_base[l->fileofs+i] >>= 1;
1628 else if (loadmodel->brush.ismcbsp)
1630 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1631 memcpy(loadmodel->brushq1.lightdata, mod_base + l->fileofs, l->filelen);
1633 else // LordHavoc: bsp version 29 (normal white lighting)
1635 // LordHavoc: hope is not lost yet, check for a .lit file to load
1636 strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
1637 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
1638 strlcpy (dlitfilename, litfilename, sizeof (dlitfilename));
1639 strlcat (litfilename, ".lit", sizeof (litfilename));
1640 strlcat (dlitfilename, ".dlit", sizeof (dlitfilename));
1641 data = (unsigned char*) FS_LoadFile(litfilename, tempmempool, false, &filesize);
1644 if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1646 i = LittleLong(((int *)data)[1]);
1649 Con_DPrintf("loaded %s\n", litfilename);
1650 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1651 memcpy(loadmodel->brushq1.lightdata, data + 8, filesize - 8);
1653 data = (unsigned char*) FS_LoadFile(dlitfilename, tempmempool, false, &filesize);
1656 if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1658 i = LittleLong(((int *)data)[1]);
1661 Con_DPrintf("loaded %s\n", dlitfilename);
1662 loadmodel->brushq1.nmaplightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1663 memcpy(loadmodel->brushq1.nmaplightdata, data + 8, filesize - 8);
1664 loadmodel->brushq3.deluxemapping_modelspace = false;
1665 loadmodel->brushq3.deluxemapping = true;
1674 Con_Printf("Unknown .lit file version (%d)\n", i);
1676 else if (filesize == 8)
1677 Con_Print("Empty .lit file, ignoring\n");
1679 Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", (int) filesize, (int) (8 + l->filelen * 3));
1686 // LordHavoc: oh well, expand the white lighting data
1689 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen*3);
1690 in = mod_base + l->fileofs;
1691 out = loadmodel->brushq1.lightdata;
1692 for (i = 0;i < l->filelen;i++)
1702 static void Mod_Q1BSP_LoadVisibility(lump_t *l)
1704 loadmodel->brushq1.num_compressedpvs = 0;
1705 loadmodel->brushq1.data_compressedpvs = NULL;
1708 loadmodel->brushq1.num_compressedpvs = l->filelen;
1709 loadmodel->brushq1.data_compressedpvs = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1710 memcpy(loadmodel->brushq1.data_compressedpvs, mod_base + l->fileofs, l->filelen);
1713 // used only for HalfLife maps
1714 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
1716 char key[128], value[4096];
1721 if (!COM_ParseTokenConsole(&data))
1723 if (com_token[0] != '{')
1727 if (!COM_ParseTokenConsole(&data))
1729 if (com_token[0] == '}')
1730 break; // end of worldspawn
1731 if (com_token[0] == '_')
1732 strlcpy(key, com_token + 1, sizeof(key));
1734 strlcpy(key, com_token, sizeof(key));
1735 while (key[strlen(key)-1] == ' ') // remove trailing spaces
1736 key[strlen(key)-1] = 0;
1737 if (!COM_ParseTokenConsole(&data))
1739 dpsnprintf(value, sizeof(value), "%s", com_token);
1740 if (!strcmp("wad", key)) // for HalfLife maps
1742 if (loadmodel->brush.ishlbsp)
1745 for (i = 0;i < (int)sizeof(value);i++)
1746 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
1750 for (;i < (int)sizeof(value);i++)
1752 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
1753 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
1755 else if (value[i] == ';' || value[i] == 0)
1759 strlcpy(wadname, "textures/", sizeof(wadname));
1760 strlcat(wadname, &value[j], sizeof(wadname));
1761 W_LoadTextureWadFile(wadname, false);
1773 static void Mod_Q1BSP_LoadEntities(lump_t *l)
1775 loadmodel->brush.entities = NULL;
1778 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1779 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
1780 if (loadmodel->brush.ishlbsp)
1781 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
1785 static void Mod_Q1BSP_LoadVertexes(lump_t *l)
1791 in = (dvertex_t *)(mod_base + l->fileofs);
1792 if (l->filelen % sizeof(*in))
1793 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
1794 count = l->filelen / sizeof(*in);
1795 out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1797 loadmodel->brushq1.vertexes = out;
1798 loadmodel->brushq1.numvertexes = count;
1800 for ( i=0 ; i<count ; i++, in++, out++)
1802 out->position[0] = LittleFloat(in->point[0]);
1803 out->position[1] = LittleFloat(in->point[1]);
1804 out->position[2] = LittleFloat(in->point[2]);
1808 // The following two functions should be removed and MSG_* or SZ_* function sets adjusted so they
1809 // can be used for this
1811 int SB_ReadInt (unsigned char **buffer)
1814 i = ((*buffer)[0]) + 256*((*buffer)[1]) + 65536*((*buffer)[2]) + 16777216*((*buffer)[3]);
1820 float SB_ReadFloat (unsigned char **buffer)
1828 u.i = SB_ReadInt (buffer);
1832 static void Mod_Q1BSP_LoadSubmodels(lump_t *l, hullinfo_t *hullinfo)
1834 unsigned char *index;
1838 index = (unsigned char *)(mod_base + l->fileofs);
1839 if (l->filelen % (48+4*hullinfo->filehulls))
1840 Host_Error ("Mod_Q1BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
1842 count = l->filelen / (48+4*hullinfo->filehulls);
1843 out = (dmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
1845 loadmodel->brushq1.submodels = out;
1846 loadmodel->brush.numsubmodels = count;
1848 for (i = 0; i < count; i++, out++)
1850 // spread out the mins / maxs by a pixel
1851 out->mins[0] = SB_ReadFloat (&index) - 1;
1852 out->mins[1] = SB_ReadFloat (&index) - 1;
1853 out->mins[2] = SB_ReadFloat (&index) - 1;
1854 out->maxs[0] = SB_ReadFloat (&index) + 1;
1855 out->maxs[1] = SB_ReadFloat (&index) + 1;
1856 out->maxs[2] = SB_ReadFloat (&index) + 1;
1857 out->origin[0] = SB_ReadFloat (&index);
1858 out->origin[1] = SB_ReadFloat (&index);
1859 out->origin[2] = SB_ReadFloat (&index);
1860 for (j = 0; j < hullinfo->filehulls; j++)
1861 out->headnode[j] = SB_ReadInt (&index);
1862 out->visleafs = SB_ReadInt (&index);
1863 out->firstface = SB_ReadInt (&index);
1864 out->numfaces = SB_ReadInt (&index);
1868 static void Mod_Q1BSP_LoadEdges(lump_t *l)
1874 in = (dedge_t *)(mod_base + l->fileofs);
1875 if (l->filelen % sizeof(*in))
1876 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
1877 count = l->filelen / sizeof(*in);
1878 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1880 loadmodel->brushq1.edges = out;
1881 loadmodel->brushq1.numedges = count;
1883 for ( i=0 ; i<count ; i++, in++, out++)
1885 out->v[0] = (unsigned short)LittleShort(in->v[0]);
1886 out->v[1] = (unsigned short)LittleShort(in->v[1]);
1887 if (out->v[0] >= loadmodel->brushq1.numvertexes || out->v[1] >= loadmodel->brushq1.numvertexes)
1889 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);
1896 static void Mod_Q1BSP_LoadTexinfo(lump_t *l)
1900 int i, j, k, count, miptex;
1902 in = (texinfo_t *)(mod_base + l->fileofs);
1903 if (l->filelen % sizeof(*in))
1904 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
1905 count = l->filelen / sizeof(*in);
1906 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1908 loadmodel->brushq1.texinfo = out;
1909 loadmodel->brushq1.numtexinfo = count;
1911 for (i = 0;i < count;i++, in++, out++)
1913 for (k = 0;k < 2;k++)
1914 for (j = 0;j < 4;j++)
1915 out->vecs[k][j] = LittleFloat(in->vecs[k][j]);
1917 miptex = LittleLong(in->miptex);
1918 out->flags = LittleLong(in->flags);
1920 out->texture = NULL;
1921 if (loadmodel->data_textures)
1923 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
1924 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
1926 out->texture = loadmodel->data_textures + miptex;
1928 if (out->flags & TEX_SPECIAL)
1930 // if texture chosen is NULL or the shader needs a lightmap,
1931 // force to notexture water shader
1932 if (out->texture == NULL || out->texture->basematerialflags & MATERIALFLAG_WALL)
1933 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 1);
1937 // if texture chosen is NULL, force to notexture
1938 if (out->texture == NULL)
1939 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 2);
1945 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
1950 mins[0] = mins[1] = mins[2] = 9999;
1951 maxs[0] = maxs[1] = maxs[2] = -9999;
1953 for (i = 0;i < numverts;i++)
1955 for (j = 0;j < 3;j++, v++)
1965 #define MAX_SUBDIVPOLYTRIANGLES 4096
1966 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
1968 static int subdivpolyverts, subdivpolytriangles;
1969 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
1970 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
1972 static int subdivpolylookupvert(vec3_t v)
1975 for (i = 0;i < subdivpolyverts;i++)
1976 if (subdivpolyvert[i][0] == v[0]
1977 && subdivpolyvert[i][1] == v[1]
1978 && subdivpolyvert[i][2] == v[2])
1980 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
1981 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
1982 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
1983 return subdivpolyverts++;
1986 static void SubdividePolygon(int numverts, float *verts)
1988 int i, i1, i2, i3, f, b, c, p;
1989 vec3_t mins, maxs, front[256], back[256];
1990 float m, *pv, *cv, dist[256], frac;
1993 Host_Error("SubdividePolygon: ran out of verts in buffer");
1995 BoundPoly(numverts, verts, mins, maxs);
1997 for (i = 0;i < 3;i++)
1999 m = (mins[i] + maxs[i]) * 0.5;
2000 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
2001 if (maxs[i] - m < 8)
2003 if (m - mins[i] < 8)
2007 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
2008 dist[c] = cv[i] - m;
2011 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
2015 VectorCopy(pv, front[f]);
2020 VectorCopy(pv, back[b]);
2023 if (dist[p] == 0 || dist[c] == 0)
2025 if ((dist[p] > 0) != (dist[c] > 0) )
2028 frac = dist[p] / (dist[p] - dist[c]);
2029 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
2030 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
2031 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
2037 SubdividePolygon(f, front[0]);
2038 SubdividePolygon(b, back[0]);
2042 i1 = subdivpolylookupvert(verts);
2043 i2 = subdivpolylookupvert(verts + 3);
2044 for (i = 2;i < numverts;i++)
2046 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
2048 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
2052 i3 = subdivpolylookupvert(verts + i * 3);
2053 subdivpolyindex[subdivpolytriangles][0] = i1;
2054 subdivpolyindex[subdivpolytriangles][1] = i2;
2055 subdivpolyindex[subdivpolytriangles][2] = i3;
2057 subdivpolytriangles++;
2061 //Breaks a polygon up along axial 64 unit
2062 //boundaries so that turbulent and sky warps
2063 //can be done reasonably.
2064 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
2070 subdivpolytriangles = 0;
2071 subdivpolyverts = 0;
2072 SubdividePolygon(surface->num_vertices, (surface->mesh->data_vertex3f + 3 * surface->num_firstvertex));
2073 if (subdivpolytriangles < 1)
2074 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?");
2076 surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
2077 mesh->num_vertices = subdivpolyverts;
2078 mesh->num_triangles = subdivpolytriangles;
2079 mesh->vertex = (surfvertex_t *)(mesh + 1);
2080 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
2081 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
2083 for (i = 0;i < mesh->num_triangles;i++)
2084 for (j = 0;j < 3;j++)
2085 mesh->index[i*3+j] = subdivpolyindex[i][j];
2087 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
2089 VectorCopy(subdivpolyvert[i], v->v);
2090 v->st[0] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[0]);
2091 v->st[1] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[1]);
2096 static qboolean Mod_Q1BSP_AllocLightmapBlock(int *lineused, int totalwidth, int totalheight, int blockwidth, int blockheight, int *outx, int *outy)
2099 int bestx = totalwidth, besty = 0;
2100 // find the left-most space we can find
2101 for (y = 0;y <= totalheight - blockheight;y++)
2104 for (y2 = 0;y2 < blockheight;y2++)
2105 x2 = max(x2, lineused[y+y2]);
2112 // if the best was not good enough, return failure
2113 if (bestx > totalwidth - blockwidth)
2115 // we found a good spot
2120 // now mark the space used
2121 for (y2 = 0;y2 < blockheight;y2++)
2122 lineused[besty+y2] = bestx + blockwidth;
2127 static void Mod_Q1BSP_LoadFaces(lump_t *l)
2130 msurface_t *surface;
2131 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber;
2132 float texmins[2], texmaxs[2], val, lightmaptexcoordscale;
2133 #define LIGHTMAPSIZE 256
2134 rtexture_t *lightmaptexture, *deluxemaptexture;
2135 int lightmap_lineused[LIGHTMAPSIZE];
2137 in = (dface_t *)(mod_base + l->fileofs);
2138 if (l->filelen % sizeof(*in))
2139 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
2140 count = l->filelen / sizeof(*in);
2141 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
2142 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
2144 loadmodel->num_surfaces = count;
2148 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs);surfacenum < count;surfacenum++, in++)
2150 numedges = LittleShort(in->numedges);
2151 totalverts += numedges;
2152 totaltris += numedges - 2;
2155 Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false, false);
2157 lightmaptexture = NULL;
2158 deluxemaptexture = r_texture_blanknormalmap;
2160 lightmaptexcoordscale = 1.0f / (float)LIGHTMAPSIZE;
2164 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs), surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, in++, surface++)
2166 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
2168 // FIXME: validate edges, texinfo, etc?
2169 firstedge = LittleLong(in->firstedge);
2170 numedges = LittleShort(in->numedges);
2171 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)
2172 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)", firstedge, numedges, loadmodel->brushq1.numsurfedges);
2173 i = LittleShort(in->texinfo);
2174 if ((unsigned int) i >= (unsigned int) loadmodel->brushq1.numtexinfo)
2175 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)", i, loadmodel->brushq1.numtexinfo);
2176 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + i;
2177 surface->texture = surface->lightmapinfo->texinfo->texture;
2179 planenum = LittleShort(in->planenum);
2180 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
2181 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)", planenum, loadmodel->brush.num_planes);
2183 //surface->flags = surface->texture->flags;
2184 //if (LittleShort(in->side))
2185 // surface->flags |= SURF_PLANEBACK;
2186 //surface->plane = loadmodel->brush.data_planes + planenum;
2188 surface->num_firstvertex = totalverts;
2189 surface->num_vertices = numedges;
2190 surface->num_firsttriangle = totaltris;
2191 surface->num_triangles = numedges - 2;
2192 totalverts += numedges;
2193 totaltris += numedges - 2;
2195 // convert edges back to a normal polygon
2196 for (i = 0;i < surface->num_vertices;i++)
2198 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
2201 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2203 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2204 s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2205 t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2206 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
2207 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
2208 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
2209 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
2210 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
2213 for (i = 0;i < surface->num_triangles;i++)
2215 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
2216 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
2217 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
2220 // compile additional data about the surface geometry
2221 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);
2222 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);
2223 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
2225 // generate surface extents information
2226 texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2227 texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2228 for (i = 1;i < surface->num_vertices;i++)
2230 for (j = 0;j < 2;j++)
2232 val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
2233 texmins[j] = min(texmins[j], val);
2234 texmaxs[j] = max(texmaxs[j], val);
2237 for (i = 0;i < 2;i++)
2239 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
2240 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
2243 smax = surface->lightmapinfo->extents[0] >> 4;
2244 tmax = surface->lightmapinfo->extents[1] >> 4;
2245 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2246 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2249 for (i = 0;i < MAXLIGHTMAPS;i++)
2250 surface->lightmapinfo->styles[i] = in->styles[i];
2251 surface->lightmaptexture = NULL;
2252 surface->deluxemaptexture = r_texture_blanknormalmap;
2253 i = LittleLong(in->lightofs);
2256 surface->lightmapinfo->samples = NULL;
2257 // give non-lightmapped water a 1x white lightmap
2258 if ((surface->texture->basematerialflags & MATERIALFLAG_WATER) && (surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
2260 surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2261 surface->lightmapinfo->styles[0] = 0;
2262 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
2265 else if (loadmodel->brush.ishlbsp) // LordHavoc: HalfLife map (bsp version 30)
2266 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + i;
2267 else // LordHavoc: white lighting (bsp version 29)
2269 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (i * 3);
2270 if (loadmodel->brushq1.nmaplightdata)
2271 surface->lightmapinfo->nmapsamples = loadmodel->brushq1.nmaplightdata + (i * 3);
2274 // check if we should apply a lightmap to this
2275 if (!(surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
2277 int i, iu, iv, lightmapx, lightmapy;
2278 float u, v, ubase, vbase, uscale, vscale;
2280 if (ssize > 256 || tsize > 256)
2281 Host_Error("Bad surface extents");
2282 // force lightmap upload on first time seeing the surface
2283 surface->cached_dlight = true;
2284 // stainmap for permanent marks on walls
2285 surface->lightmapinfo->stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2287 memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
2289 // find a place for this lightmap
2290 if (!lightmaptexture || !Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, LIGHTMAPSIZE, LIGHTMAPSIZE, ssize, tsize, &lightmapx, &lightmapy))
2292 // could not find room, make a new lightmap
2293 lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%i", lightmapnumber), LIGHTMAPSIZE, LIGHTMAPSIZE, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2294 if (loadmodel->brushq1.nmaplightdata)
2295 deluxemaptexture = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%i", lightmapnumber), LIGHTMAPSIZE, LIGHTMAPSIZE, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2297 memset(lightmap_lineused, 0, sizeof(lightmap_lineused));
2298 Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, LIGHTMAPSIZE, LIGHTMAPSIZE, ssize, tsize, &lightmapx, &lightmapy);
2301 surface->lightmaptexture = lightmaptexture;
2302 surface->deluxemaptexture = deluxemaptexture;
2303 surface->lightmapinfo->lightmaporigin[0] = lightmapx;
2304 surface->lightmapinfo->lightmaporigin[1] = lightmapy;
2306 ubase = lightmapx * lightmaptexcoordscale;
2307 vbase = lightmapy * lightmaptexcoordscale;
2308 uscale = lightmaptexcoordscale;
2309 vscale = lightmaptexcoordscale;
2311 for (i = 0;i < surface->num_vertices;i++)
2313 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);
2314 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);
2315 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
2316 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
2317 // LordHavoc: calc lightmap data offset for vertex lighting to use
2320 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
2326 static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
2329 // Host_Error("Mod_Q1BSP_LoadNodes_RecursiveSetParent: runaway recursion");
2330 node->parent = parent;
2333 // this is a node, recurse to children
2334 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
2335 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
2336 // combine supercontents of children
2337 node->combinedsupercontents = node->children[0]->combinedsupercontents | node->children[1]->combinedsupercontents;
2342 mleaf_t *leaf = (mleaf_t *)node;
2343 // if this is a leaf, calculate supercontents mask from all collidable
2344 // primitives in the leaf (brushes and collision surfaces)
2345 // also flag if the leaf contains any collision surfaces
2346 leaf->combinedsupercontents = 0;
2347 // combine the supercontents values of all brushes in this leaf
2348 for (j = 0;j < leaf->numleafbrushes;j++)
2349 leaf->combinedsupercontents |= loadmodel->brush.data_brushes[leaf->firstleafbrush[j]].texture->supercontents;
2350 // check if this leaf contains any collision surfaces (q3 patches)
2351 for (j = 0;j < leaf->numleafsurfaces;j++)
2353 msurface_t *surface = loadmodel->data_surfaces + leaf->firstleafsurface[j];
2354 if (surface->num_collisiontriangles)
2356 leaf->containscollisionsurfaces = true;
2357 leaf->combinedsupercontents |= surface->texture->supercontents;
2363 static void Mod_Q1BSP_LoadNodes(lump_t *l)
2369 in = (dnode_t *)(mod_base + l->fileofs);
2370 if (l->filelen % sizeof(*in))
2371 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
2372 count = l->filelen / sizeof(*in);
2373 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2375 loadmodel->brush.data_nodes = out;
2376 loadmodel->brush.num_nodes = count;
2378 for ( i=0 ; i<count ; i++, in++, out++)
2380 for (j=0 ; j<3 ; j++)
2382 out->mins[j] = LittleShort(in->mins[j]);
2383 out->maxs[j] = LittleShort(in->maxs[j]);
2386 p = LittleLong(in->planenum);
2387 out->plane = loadmodel->brush.data_planes + p;
2389 out->firstsurface = LittleShort(in->firstface);
2390 out->numsurfaces = LittleShort(in->numfaces);
2392 for (j=0 ; j<2 ; j++)
2394 p = LittleShort(in->children[j]);
2396 out->children[j] = loadmodel->brush.data_nodes + p;
2398 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + (-1 - p));
2402 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
2405 static void Mod_Q1BSP_LoadLeafs(lump_t *l)
2411 in = (dleaf_t *)(mod_base + l->fileofs);
2412 if (l->filelen % sizeof(*in))
2413 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2414 count = l->filelen / sizeof(*in);
2415 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2417 loadmodel->brush.data_leafs = out;
2418 loadmodel->brush.num_leafs = count;
2419 // get visleafs from the submodel data
2420 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2421 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2422 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2423 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2425 for ( i=0 ; i<count ; i++, in++, out++)
2427 for (j=0 ; j<3 ; j++)
2429 out->mins[j] = LittleShort(in->mins[j]);
2430 out->maxs[j] = LittleShort(in->maxs[j]);
2433 // FIXME: this function could really benefit from some error checking
2435 out->contents = LittleLong(in->contents);
2437 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + LittleShort(in->firstmarksurface);
2438 out->numleafsurfaces = LittleShort(in->nummarksurfaces);
2439 if (out->firstleafsurface < 0 || LittleShort(in->firstmarksurface) + out->numleafsurfaces > loadmodel->brush.num_leafsurfaces)
2441 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);
2442 out->firstleafsurface = NULL;
2443 out->numleafsurfaces = 0;
2446 out->clusterindex = i - 1;
2447 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
2448 out->clusterindex = -1;
2450 p = LittleLong(in->visofs);
2451 // ignore visofs errors on leaf 0 (solid)
2452 if (p >= 0 && out->clusterindex >= 0)
2454 if (p >= loadmodel->brushq1.num_compressedpvs)
2455 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
2457 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);
2460 for (j = 0;j < 4;j++)
2461 out->ambient_sound_level[j] = in->ambient_level[j];
2463 // FIXME: Insert caustics here
2467 qboolean Mod_Q1BSP_CheckWaterAlphaSupport(void)
2471 const unsigned char *pvs;
2472 // check all liquid leafs to see if they can see into empty leafs, if any
2473 // can we can assume this map supports r_wateralpha
2474 for (i = 0, leaf = loadmodel->brush.data_leafs;i < loadmodel->brush.num_leafs;i++, leaf++)
2476 if ((leaf->contents == CONTENTS_WATER || leaf->contents == CONTENTS_SLIME) && (leaf->clusterindex >= 0 && loadmodel->brush.data_pvsclusters))
2478 pvs = loadmodel->brush.data_pvsclusters + leaf->clusterindex * loadmodel->brush.num_pvsclusterbytes;
2479 for (j = 0;j < loadmodel->brush.num_leafs;j++)
2480 if (CHECKPVSBIT(pvs, loadmodel->brush.data_leafs[j].clusterindex) && loadmodel->brush.data_leafs[j].contents == CONTENTS_EMPTY)
2487 static void Mod_Q1BSP_LoadClipnodes(lump_t *l, hullinfo_t *hullinfo)
2489 dclipnode_t *in, *out;
2493 in = (dclipnode_t *)(mod_base + l->fileofs);
2494 if (l->filelen % sizeof(*in))
2495 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
2496 count = l->filelen / sizeof(*in);
2497 out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2499 loadmodel->brushq1.clipnodes = out;
2500 loadmodel->brushq1.numclipnodes = count;
2502 for (i = 1; i < hullinfo->numhulls; i++)
2504 hull = &loadmodel->brushq1.hulls[i];
2505 hull->clipnodes = out;
2506 hull->firstclipnode = 0;
2507 hull->lastclipnode = count-1;
2508 hull->planes = loadmodel->brush.data_planes;
2509 hull->clip_mins[0] = hullinfo->hullsizes[i][0][0];
2510 hull->clip_mins[1] = hullinfo->hullsizes[i][0][1];
2511 hull->clip_mins[2] = hullinfo->hullsizes[i][0][2];
2512 hull->clip_maxs[0] = hullinfo->hullsizes[i][1][0];
2513 hull->clip_maxs[1] = hullinfo->hullsizes[i][1][1];
2514 hull->clip_maxs[2] = hullinfo->hullsizes[i][1][2];
2515 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2518 for (i=0 ; i<count ; i++, out++, in++)
2520 out->planenum = LittleLong(in->planenum);
2521 out->children[0] = LittleShort(in->children[0]);
2522 out->children[1] = LittleShort(in->children[1]);
2523 if (out->planenum < 0 || out->planenum >= loadmodel->brush.num_planes)
2524 Host_Error("Corrupt clipping hull(out of range planenum)");
2525 if (out->children[0] >= count || out->children[1] >= count)
2526 Host_Error("Corrupt clipping hull(out of range child)");
2530 //Duplicate the drawing hull structure as a clipping hull
2531 static void Mod_Q1BSP_MakeHull0(void)
2538 hull = &loadmodel->brushq1.hulls[0];
2540 in = loadmodel->brush.data_nodes;
2541 out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(dclipnode_t));
2543 hull->clipnodes = out;
2544 hull->firstclipnode = 0;
2545 hull->lastclipnode = loadmodel->brush.num_nodes - 1;
2546 hull->planes = loadmodel->brush.data_planes;
2548 for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
2550 out->planenum = in->plane - loadmodel->brush.data_planes;
2551 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
2552 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
2556 static void Mod_Q1BSP_LoadLeaffaces(lump_t *l)
2561 in = (short *)(mod_base + l->fileofs);
2562 if (l->filelen % sizeof(*in))
2563 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
2564 loadmodel->brush.num_leafsurfaces = l->filelen / sizeof(*in);
2565 loadmodel->brush.data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
2567 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
2569 j = (unsigned) LittleShort(in[i]);
2570 if (j >= loadmodel->num_surfaces)
2571 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
2572 loadmodel->brush.data_leafsurfaces[i] = j;
2576 static void Mod_Q1BSP_LoadSurfedges(lump_t *l)
2581 in = (int *)(mod_base + l->fileofs);
2582 if (l->filelen % sizeof(*in))
2583 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
2584 loadmodel->brushq1.numsurfedges = l->filelen / sizeof(*in);
2585 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
2587 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
2588 loadmodel->brushq1.surfedges[i] = LittleLong(in[i]);
2592 static void Mod_Q1BSP_LoadPlanes(lump_t *l)
2598 in = (dplane_t *)(mod_base + l->fileofs);
2599 if (l->filelen % sizeof(*in))
2600 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
2602 loadmodel->brush.num_planes = l->filelen / sizeof(*in);
2603 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
2605 for (i = 0;i < loadmodel->brush.num_planes;i++, in++, out++)
2607 out->normal[0] = LittleFloat(in->normal[0]);
2608 out->normal[1] = LittleFloat(in->normal[1]);
2609 out->normal[2] = LittleFloat(in->normal[2]);
2610 out->dist = LittleFloat(in->dist);
2616 static void Mod_Q1BSP_LoadMapBrushes(void)
2620 int submodel, numbrushes;
2621 qboolean firstbrush;
2622 char *text, *maptext;
2623 char mapfilename[MAX_QPATH];
2624 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
2625 strlcat (mapfilename, ".map", sizeof (mapfilename));
2626 maptext = (unsigned char*) FS_LoadFile(mapfilename, tempmempool, false, NULL);
2630 if (!COM_ParseTokenConsole(&data))
2635 if (!COM_ParseTokenConsole(&data))
2637 if (com_token[0] != '{')
2643 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
2646 if (!COM_ParseTokenConsole(&data))
2648 if (com_token[0] == '}')
2649 break; // end of entity
2650 if (com_token[0] == '{')
2657 if (submodel > loadmodel->brush.numsubmodels)
2659 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
2663 model = loadmodel->brush.submodels[submodel];
2670 if (!COM_ParseTokenConsole(&data))
2672 if (com_token[0] == '}')
2673 break; // end of brush
2674 // each brush face should be this format:
2675 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
2676 // FIXME: support hl .map format
2677 for (pointnum = 0;pointnum < 3;pointnum++)
2679 COM_ParseTokenConsole(&data);
2680 for (componentnum = 0;componentnum < 3;componentnum++)
2682 COM_ParseTokenConsole(&data);
2683 point[pointnum][componentnum] = atof(com_token);
2685 COM_ParseTokenConsole(&data);
2687 COM_ParseTokenConsole(&data);
2688 strlcpy(facetexture, com_token, sizeof(facetexture));
2689 COM_ParseTokenConsole(&data);
2690 //scroll_s = atof(com_token);
2691 COM_ParseTokenConsole(&data);
2692 //scroll_t = atof(com_token);
2693 COM_ParseTokenConsole(&data);
2694 //rotate = atof(com_token);
2695 COM_ParseTokenConsole(&data);
2696 //scale_s = atof(com_token);
2697 COM_ParseTokenConsole(&data);
2698 //scale_t = atof(com_token);
2699 TriangleNormal(point[0], point[1], point[2], planenormal);
2700 VectorNormalizeDouble(planenormal);
2701 planedist = DotProduct(point[0], planenormal);
2702 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
2712 #define MAX_PORTALPOINTS 64
2714 typedef struct portal_s
2717 mnode_t *nodes[2]; // [0] = front side of plane
2718 struct portal_s *next[2];
2720 double points[3*MAX_PORTALPOINTS];
2721 struct portal_s *chain; // all portals are linked into a list
2725 static portal_t *portalchain;
2732 static portal_t *AllocPortal(void)
2735 p = (portal_t *)Mem_Alloc(loadmodel->mempool, sizeof(portal_t));
2736 p->chain = portalchain;
2741 static void FreePortal(portal_t *p)
2746 static void Mod_Q1BSP_RecursiveRecalcNodeBBox(mnode_t *node)
2748 // process only nodes (leafs already had their box calculated)
2752 // calculate children first
2753 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[0]);
2754 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[1]);
2756 // make combined bounding box from children
2757 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
2758 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
2759 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
2760 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
2761 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
2762 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
2765 static void Mod_Q1BSP_FinalizePortals(void)
2767 int i, j, numportals, numpoints;
2768 portal_t *p, *pnext;
2771 mleaf_t *leaf, *endleaf;
2773 // tally up portal and point counts and recalculate bounding boxes for all
2774 // leafs (because qbsp is very sloppy)
2775 leaf = loadmodel->brush.data_leafs;
2776 endleaf = leaf + loadmodel->brush.num_leafs;
2777 for (;leaf < endleaf;leaf++)
2779 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
2780 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
2787 // note: this check must match the one below or it will usually corrupt memory
2788 // 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
2789 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2792 numpoints += p->numpoints * 2;
2796 loadmodel->brush.data_portals = (mportal_t *)Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
2797 loadmodel->brush.num_portals = numportals;
2798 loadmodel->brush.data_portalpoints = (mvertex_t *)((unsigned char *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
2799 loadmodel->brush.num_portalpoints = numpoints;
2800 // clear all leaf portal chains
2801 for (i = 0;i < loadmodel->brush.num_leafs;i++)
2802 loadmodel->brush.data_leafs[i].portals = NULL;
2803 // process all portals in the global portal chain, while freeing them
2804 portal = loadmodel->brush.data_portals;
2805 point = loadmodel->brush.data_portalpoints;
2812 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1])
2814 // note: this check must match the one above or it will usually corrupt memory
2815 // 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
2816 if (((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2818 // first make the back to front portal(forward portal)
2819 portal->points = point;
2820 portal->numpoints = p->numpoints;
2821 portal->plane.dist = p->plane.dist;
2822 VectorCopy(p->plane.normal, portal->plane.normal);
2823 portal->here = (mleaf_t *)p->nodes[1];
2824 portal->past = (mleaf_t *)p->nodes[0];
2826 for (j = 0;j < portal->numpoints;j++)
2828 VectorCopy(p->points + j*3, point->position);
2831 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2832 PlaneClassify(&portal->plane);
2834 // link into leaf's portal chain
2835 portal->next = portal->here->portals;
2836 portal->here->portals = portal;
2838 // advance to next portal
2841 // then make the front to back portal(backward portal)
2842 portal->points = point;
2843 portal->numpoints = p->numpoints;
2844 portal->plane.dist = -p->plane.dist;
2845 VectorNegate(p->plane.normal, portal->plane.normal);
2846 portal->here = (mleaf_t *)p->nodes[0];
2847 portal->past = (mleaf_t *)p->nodes[1];
2849 for (j = portal->numpoints - 1;j >= 0;j--)
2851 VectorCopy(p->points + j*3, point->position);
2854 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2855 PlaneClassify(&portal->plane);
2857 // link into leaf's portal chain
2858 portal->next = portal->here->portals;
2859 portal->here->portals = portal;
2861 // advance to next portal
2864 // add the portal's polygon points to the leaf bounding boxes
2865 for (i = 0;i < 2;i++)
2867 leaf = (mleaf_t *)p->nodes[i];
2868 for (j = 0;j < p->numpoints;j++)
2870 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
2871 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
2872 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
2873 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
2874 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
2875 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
2882 // now recalculate the node bounding boxes from the leafs
2883 Mod_Q1BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes);
2891 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
2894 Host_Error("AddPortalToNodes: NULL front node");
2896 Host_Error("AddPortalToNodes: NULL back node");
2897 if (p->nodes[0] || p->nodes[1])
2898 Host_Error("AddPortalToNodes: already included");
2899 // 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
2901 p->nodes[0] = front;
2902 p->next[0] = (portal_t *)front->portals;
2903 front->portals = (mportal_t *)p;
2906 p->next[1] = (portal_t *)back->portals;
2907 back->portals = (mportal_t *)p;
2912 RemovePortalFromNode
2915 static void RemovePortalFromNodes(portal_t *portal)
2919 void **portalpointer;
2921 for (i = 0;i < 2;i++)
2923 node = portal->nodes[i];
2925 portalpointer = (void **) &node->portals;
2928 t = (portal_t *)*portalpointer;
2930 Host_Error("RemovePortalFromNodes: portal not in leaf");
2934 if (portal->nodes[0] == node)
2936 *portalpointer = portal->next[0];
2937 portal->nodes[0] = NULL;
2939 else if (portal->nodes[1] == node)
2941 *portalpointer = portal->next[1];
2942 portal->nodes[1] = NULL;
2945 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2949 if (t->nodes[0] == node)
2950 portalpointer = (void **) &t->next[0];
2951 else if (t->nodes[1] == node)
2952 portalpointer = (void **) &t->next[1];
2954 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2959 #define PORTAL_DIST_EPSILON (1.0 / 32.0)
2960 static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
2963 mnode_t *front, *back, *other_node;
2964 mplane_t clipplane, *plane;
2965 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
2966 int numfrontpoints, numbackpoints;
2967 double frontpoints[3*MAX_PORTALPOINTS], backpoints[3*MAX_PORTALPOINTS];
2969 // if a leaf, we're done
2973 plane = node->plane;
2975 front = node->children[0];
2976 back = node->children[1];
2978 Host_Error("Mod_Q1BSP_RecursiveNodePortals: corrupt node hierarchy");
2980 // create the new portal by generating a polygon for the node plane,
2981 // and clipping it by all of the other portals(which came from nodes above this one)
2982 nodeportal = AllocPortal();
2983 nodeportal->plane = *plane;
2985 // 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)
2986 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);
2987 nodeportal->numpoints = 4;
2988 side = 0; // shut up compiler warning
2989 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
2991 clipplane = portal->plane;
2992 if (portal->nodes[0] == portal->nodes[1])
2993 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(1)");
2994 if (portal->nodes[0] == node)
2996 else if (portal->nodes[1] == node)
2998 clipplane.dist = -clipplane.dist;
2999 VectorNegate(clipplane.normal, clipplane.normal);
3003 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
3005 for (i = 0;i < nodeportal->numpoints*3;i++)
3006 frontpoints[i] = nodeportal->points[i];
3007 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);
3008 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
3012 if (nodeportal->numpoints < 3)
3014 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
3015 nodeportal->numpoints = 0;
3017 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
3019 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
3020 nodeportal->numpoints = 0;
3023 AddPortalToNodes(nodeportal, front, back);
3025 // split the portals of this node along this node's plane and assign them to the children of this node
3026 // (migrating the portals downward through the tree)
3027 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
3029 if (portal->nodes[0] == portal->nodes[1])
3030 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(2)");
3031 if (portal->nodes[0] == node)
3033 else if (portal->nodes[1] == node)
3036 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
3037 nextportal = portal->next[side];
3038 if (!portal->numpoints)
3041 other_node = portal->nodes[!side];
3042 RemovePortalFromNodes(portal);
3044 // cut the portal into two portals, one on each side of the node plane
3045 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);
3047 if (!numfrontpoints)
3050 AddPortalToNodes(portal, back, other_node);
3052 AddPortalToNodes(portal, other_node, back);
3058 AddPortalToNodes(portal, front, other_node);
3060 AddPortalToNodes(portal, other_node, front);
3064 // the portal is split
3065 splitportal = AllocPortal();
3066 temp = splitportal->chain;
3067 *splitportal = *portal;
3068 splitportal->chain = temp;
3069 for (i = 0;i < numbackpoints*3;i++)
3070 splitportal->points[i] = backpoints[i];
3071 splitportal->numpoints = numbackpoints;
3072 for (i = 0;i < numfrontpoints*3;i++)
3073 portal->points[i] = frontpoints[i];
3074 portal->numpoints = numfrontpoints;
3078 AddPortalToNodes(portal, front, other_node);
3079 AddPortalToNodes(splitportal, back, other_node);
3083 AddPortalToNodes(portal, other_node, front);
3084 AddPortalToNodes(splitportal, other_node, back);
3088 Mod_Q1BSP_RecursiveNodePortals(front);
3089 Mod_Q1BSP_RecursiveNodePortals(back);
3092 static void Mod_Q1BSP_MakePortals(void)
3095 Mod_Q1BSP_RecursiveNodePortals(loadmodel->brush.data_nodes);
3096 Mod_Q1BSP_FinalizePortals();
3099 static void Mod_Q1BSP_BuildLightmapUpdateChains(mempool_t *mempool, model_t *model)
3101 int i, j, stylecounts[256], totalcount, remapstyles[256];
3102 msurface_t *surface;
3103 memset(stylecounts, 0, sizeof(stylecounts));
3104 for (i = 0;i < model->nummodelsurfaces;i++)
3106 surface = model->data_surfaces + model->firstmodelsurface + i;
3107 for (j = 0;j < MAXLIGHTMAPS;j++)
3108 stylecounts[surface->lightmapinfo->styles[j]]++;
3111 model->brushq1.light_styles = 0;
3112 for (i = 0;i < 255;i++)
3116 remapstyles[i] = model->brushq1.light_styles++;
3117 totalcount += stylecounts[i] + 1;
3122 model->brushq1.light_style = (unsigned char *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(unsigned char));
3123 model->brushq1.light_stylevalue = (int *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(int));
3124 model->brushq1.light_styleupdatechains = (msurface_t ***)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(msurface_t **));
3125 model->brushq1.light_styleupdatechainsbuffer = (msurface_t **)Mem_Alloc(mempool, totalcount * sizeof(msurface_t *));
3126 model->brushq1.light_styles = 0;
3127 for (i = 0;i < 255;i++)
3129 model->brushq1.light_style[model->brushq1.light_styles++] = i;
3131 for (i = 0;i < model->brushq1.light_styles;i++)
3133 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
3134 j += stylecounts[model->brushq1.light_style[i]] + 1;
3136 for (i = 0;i < model->nummodelsurfaces;i++)
3138 surface = model->data_surfaces + model->firstmodelsurface + i;
3139 for (j = 0;j < MAXLIGHTMAPS;j++)
3140 if (surface->lightmapinfo->styles[j] != 255)
3141 *model->brushq1.light_styleupdatechains[remapstyles[surface->lightmapinfo->styles[j]]]++ = surface;
3144 for (i = 0;i < model->brushq1.light_styles;i++)
3146 *model->brushq1.light_styleupdatechains[i] = NULL;
3147 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
3148 j += stylecounts[model->brushq1.light_style[i]] + 1;
3152 //Returns PVS data for a given point
3153 //(note: can return NULL)
3154 static unsigned char *Mod_Q1BSP_GetPVS(model_t *model, const vec3_t p)
3157 node = model->brush.data_nodes;
3159 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
3160 if (((mleaf_t *)node)->clusterindex >= 0)
3161 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3166 static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
3170 float d = PlaneDiff(org, node->plane);
3172 node = node->children[0];
3173 else if (d < -radius)
3174 node = node->children[1];
3177 // go down both sides
3178 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
3179 node = node->children[1];
3182 // if this leaf is in a cluster, accumulate the pvs bits
3183 if (((mleaf_t *)node)->clusterindex >= 0)
3186 unsigned char *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3187 for (i = 0;i < pvsbytes;i++)
3188 pvsbuffer[i] |= pvs[i];
3192 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
3193 //of the given point.
3194 static int Mod_Q1BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength)
3196 int bytes = model->brush.num_pvsclusterbytes;
3197 bytes = min(bytes, pvsbufferlength);
3198 if (r_novis.integer || !model->brush.num_pvsclusters || !Mod_Q1BSP_GetPVS(model, org))
3200 memset(pvsbuffer, 0xFF, bytes);
3203 memset(pvsbuffer, 0, bytes);
3204 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes);
3208 static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
3213 VectorSubtract(inmaxs, inmins, size);
3214 if (cmodel->brush.ismcbsp)
3217 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3218 else if (size[2] < 48) // pick the nearest of 40 or 56
3219 hull = &cmodel->brushq1.hulls[2]; // 16x16x40
3221 hull = &cmodel->brushq1.hulls[1]; // 16x16x56
3223 else if (cmodel->brush.ishlbsp)
3226 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3227 else if (size[0] <= 32)
3229 if (size[2] < 54) // pick the nearest of 36 or 72
3230 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
3232 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
3235 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
3240 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3241 else if (size[0] <= 32)
3242 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
3244 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
3246 VectorCopy(inmins, outmins);
3247 VectorAdd(inmins, hull->clip_size, outmaxs);
3250 void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
3255 mempool_t *mainmempool;
3256 float dist, modelyawradius, modelradius, *vec;
3257 msurface_t *surface;
3258 int numshadowmeshtriangles;
3260 hullinfo_t hullinfo;
3262 mod->type = mod_brushq1;
3264 if (!memcmp (buffer, "MCBSPpad", 8))
3266 unsigned char *index;
3268 mod->brush.ismcbsp = true;
3269 mod->brush.ishlbsp = false;
3271 mod_base = (unsigned char*)buffer;
3275 i = SB_ReadInt (&index);
3276 if (i != MCBSPVERSION)
3277 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i)", mod->name, i, MCBSPVERSION);
3280 hullinfo.numhulls = LittleLong(*(int*)index); index += 4;
3281 hullinfo.filehulls = hullinfo.numhulls;
3282 VectorClear (hullinfo.hullsizes[0][0]);
3283 VectorClear (hullinfo.hullsizes[0][1]);
3284 for (i = 1; i < hullinfo.numhulls; i++)
3286 hullinfo.hullsizes[i][0][0] = SB_ReadFloat (&index);
3287 hullinfo.hullsizes[i][0][1] = SB_ReadFloat (&index);
3288 hullinfo.hullsizes[i][0][2] = SB_ReadFloat (&index);
3289 hullinfo.hullsizes[i][1][0] = SB_ReadFloat (&index);
3290 hullinfo.hullsizes[i][1][1] = SB_ReadFloat (&index);
3291 hullinfo.hullsizes[i][1][2] = SB_ReadFloat (&index);
3295 _header.version = 0;
3296 for (i = 0; i < HEADER_LUMPS; i++)
3298 _header.lumps[i].fileofs = SB_ReadInt (&index);
3299 _header.lumps[i].filelen = SB_ReadInt (&index);
3306 header = (dheader_t *)buffer;
3308 i = LittleLong(header->version);
3309 if (i != BSPVERSION && i != 30)
3310 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i(Quake) or 30(HalfLife)", mod->name, i, BSPVERSION);
3311 mod->brush.ishlbsp = i == 30;
3312 mod->brush.ismcbsp = false;
3314 // fill in hull info
3315 VectorClear (hullinfo.hullsizes[0][0]);
3316 VectorClear (hullinfo.hullsizes[0][1]);
3317 if (mod->brush.ishlbsp)
3319 hullinfo.numhulls = 4;
3320 hullinfo.filehulls = 4;
3321 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
3322 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
3323 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
3324 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
3325 VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
3326 VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
3330 hullinfo.numhulls = 3;
3331 hullinfo.filehulls = 4;
3332 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
3333 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
3334 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
3335 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
3339 mod_base = (unsigned char*)buffer;
3340 for (i = 0; i < HEADER_LUMPS; i++)
3342 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
3343 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
3347 mod->soundfromcenter = true;
3348 mod->TraceBox = Mod_Q1BSP_TraceBox;
3349 mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
3350 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3351 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3352 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
3353 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
3354 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
3355 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
3356 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
3357 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
3358 mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
3359 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
3360 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3361 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3362 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
3364 if (loadmodel->isworldmodel)
3366 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3367 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3372 // store which lightmap format to use
3373 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3375 mod->brush.qw_md4sum = 0;
3376 mod->brush.qw_md4sum2 = 0;
3377 for (i = 0;i < HEADER_LUMPS;i++)
3379 if (i == LUMP_ENTITIES)
3381 mod->brush.qw_md4sum ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3382 if (i == LUMP_VISIBILITY || i == LUMP_LEAFS || i == LUMP_NODES)
3384 mod->brush.qw_md4sum2 ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3387 Mod_Q1BSP_LoadEntities(&header->lumps[LUMP_ENTITIES]);
3388 Mod_Q1BSP_LoadVertexes(&header->lumps[LUMP_VERTEXES]);
3389 Mod_Q1BSP_LoadEdges(&header->lumps[LUMP_EDGES]);
3390 Mod_Q1BSP_LoadSurfedges(&header->lumps[LUMP_SURFEDGES]);
3391 Mod_Q1BSP_LoadTextures(&header->lumps[LUMP_TEXTURES]);
3392 Mod_Q1BSP_LoadLighting(&header->lumps[LUMP_LIGHTING]);
3393 Mod_Q1BSP_LoadPlanes(&header->lumps[LUMP_PLANES]);
3394 Mod_Q1BSP_LoadTexinfo(&header->lumps[LUMP_TEXINFO]);
3395 Mod_Q1BSP_LoadFaces(&header->lumps[LUMP_FACES]);
3396 Mod_Q1BSP_LoadLeaffaces(&header->lumps[LUMP_MARKSURFACES]);
3397 Mod_Q1BSP_LoadVisibility(&header->lumps[LUMP_VISIBILITY]);
3398 // load submodels before leafs because they contain the number of vis leafs
3399 Mod_Q1BSP_LoadSubmodels(&header->lumps[LUMP_MODELS], &hullinfo);
3400 Mod_Q1BSP_LoadLeafs(&header->lumps[LUMP_LEAFS]);
3401 Mod_Q1BSP_LoadNodes(&header->lumps[LUMP_NODES]);
3402 Mod_Q1BSP_LoadClipnodes(&header->lumps[LUMP_CLIPNODES], &hullinfo);
3404 // check if the map supports transparent water rendering
3405 loadmodel->brush.supportwateralpha = Mod_Q1BSP_CheckWaterAlphaSupport();
3407 if (!mod->brushq1.lightdata)
3408 mod->brush.LightPoint = NULL;
3410 if (mod->brushq1.data_compressedpvs)
3411 Mem_Free(mod->brushq1.data_compressedpvs);
3412 mod->brushq1.data_compressedpvs = NULL;
3413 mod->brushq1.num_compressedpvs = 0;
3415 Mod_Q1BSP_MakeHull0();
3416 Mod_Q1BSP_MakePortals();
3418 mod->numframes = 2; // regular and alternate animation
3421 mainmempool = mod->mempool;
3423 // make a single combined shadow mesh to allow optimized shadow volume creation
3424 numshadowmeshtriangles = 0;
3425 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3427 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
3428 numshadowmeshtriangles += surface->num_triangles;
3430 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
3431 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3432 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));
3433 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
3434 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
3436 if (loadmodel->brush.numsubmodels)
3437 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
3439 if (loadmodel->isworldmodel)
3441 // clear out any stale submodels or worldmodels lying around
3442 // if we did this clear before now, an error might abort loading and
3443 // leave things in a bad state
3444 Mod_RemoveStaleWorldModels(loadmodel);
3447 // LordHavoc: to clear the fog around the original quake submodel code, I
3449 // first of all, some background info on the submodels:
3450 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
3451 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
3452 // now the weird for loop itself:
3453 // the loop functions in an odd way, on each iteration it sets up the
3454 // current 'mod' model (which despite the confusing code IS the model of
3455 // the number i), at the end of the loop it duplicates the model to become
3456 // the next submodel, and loops back to set up the new submodel.
3458 // LordHavoc: now the explanation of my sane way (which works identically):
3459 // set up the world model, then on each submodel copy from the world model
3460 // and set up the submodel with the respective model info.
3461 for (i = 0;i < mod->brush.numsubmodels;i++)
3463 // LordHavoc: this code was originally at the end of this loop, but
3464 // has been transformed to something more readable at the start here.
3469 // LordHavoc: only register submodels if it is the world
3470 // (prevents external bsp models from replacing world submodels with
3472 if (!loadmodel->isworldmodel)
3474 // duplicate the basic information
3475 sprintf(name, "*%i", i);
3476 mod = Mod_FindName(name);
3477 // copy the base model to this one
3479 // rename the clone back to its proper name
3480 strlcpy(mod->name, name, sizeof(mod->name));
3481 // textures and memory belong to the main model
3482 mod->texturepool = NULL;
3483 mod->mempool = NULL;
3486 mod->brush.submodel = i;
3488 if (loadmodel->brush.submodels)
3489 loadmodel->brush.submodels[i] = mod;
3491 bm = &mod->brushq1.submodels[i];
3493 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
3494 for (j=1 ; j<MAX_MAP_HULLS ; j++)
3496 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
3497 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
3500 mod->firstmodelsurface = bm->firstface;
3501 mod->nummodelsurfaces = bm->numfaces;
3503 // make the model surface list (used by shadowing/lighting)
3504 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
3505 for (j = 0;j < mod->nummodelsurfaces;j++)
3506 mod->surfacelist[j] = mod->firstmodelsurface + j;
3508 // this gets altered below if sky is used
3509 mod->DrawSky = NULL;
3510 mod->Draw = R_Q1BSP_Draw;
3511 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
3512 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
3513 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
3514 mod->DrawLight = R_Q1BSP_DrawLight;
3517 mod->brush.TraceLineOfSight = NULL;
3518 mod->brush.GetPVS = NULL;
3519 mod->brush.FatPVS = NULL;
3520 mod->brush.BoxTouchingPVS = NULL;
3521 mod->brush.BoxTouchingLeafPVS = NULL;
3522 mod->brush.BoxTouchingVisibleLeafs = NULL;
3523 mod->brush.FindBoxClusters = NULL;
3524 mod->brush.LightPoint = NULL;
3525 mod->brush.AmbientSoundLevelsForPoint = NULL;
3527 Mod_Q1BSP_BuildLightmapUpdateChains(loadmodel->mempool, mod);
3528 if (mod->nummodelsurfaces)
3530 // LordHavoc: calculate bmodel bounding box rather than trusting what it says
3531 mod->normalmins[0] = mod->normalmins[1] = mod->normalmins[2] = 1000000000.0f;
3532 mod->normalmaxs[0] = mod->normalmaxs[1] = mod->normalmaxs[2] = -1000000000.0f;
3535 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
3537 // we only need to have a drawsky function if it is used(usually only on world model)
3538 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
3539 mod->DrawSky = R_Q1BSP_DrawSky;
3540 // calculate bounding shapes
3541 for (k = 0, vec = (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex);k < surface->num_vertices;k++, vec += 3)
3543 if (mod->normalmins[0] > vec[0]) mod->normalmins[0] = vec[0];
3544 if (mod->normalmins[1] > vec[1]) mod->normalmins[1] = vec[1];
3545 if (mod->normalmins[2] > vec[2]) mod->normalmins[2] = vec[2];
3546 if (mod->normalmaxs[0] < vec[0]) mod->normalmaxs[0] = vec[0];
3547 if (mod->normalmaxs[1] < vec[1]) mod->normalmaxs[1] = vec[1];
3548 if (mod->normalmaxs[2] < vec[2]) mod->normalmaxs[2] = vec[2];
3549 dist = vec[0]*vec[0]+vec[1]*vec[1];
3550 if (modelyawradius < dist)
3551 modelyawradius = dist;
3552 dist += vec[2]*vec[2];
3553 if (modelradius < dist)
3557 modelyawradius = sqrt(modelyawradius);
3558 modelradius = sqrt(modelradius);
3559 mod->yawmins[0] = mod->yawmins[1] = - (mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius);
3560 mod->yawmins[2] = mod->normalmins[2];
3561 mod->yawmaxs[2] = mod->normalmaxs[2];
3562 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
3563 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
3564 mod->radius = modelradius;
3565 mod->radius2 = modelradius * modelradius;
3569 // LordHavoc: empty submodel(lacrima.bsp has such a glitch)
3570 Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
3572 //mod->brushq1.num_visleafs = bm->visleafs;
3575 Mod_Q1BSP_LoadMapBrushes();
3577 //Mod_Q1BSP_ProcessLightList();
3579 if (developer.integer >= 10)
3580 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);
3583 static void Mod_Q2BSP_LoadEntities(lump_t *l)
3587 static void Mod_Q2BSP_LoadPlanes(lump_t *l)
3594 in = (void *)(mod_base + l->fileofs);
3595 if (l->filelen % sizeof(*in))
3596 Host_Error("Mod_Q2BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
3597 count = l->filelen / sizeof(*in);
3598 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3601 loadmodel->num = count;
3603 for (i = 0;i < count;i++, in++, out++)
3609 static void Mod_Q2BSP_LoadVertices(lump_t *l)
3616 in = (void *)(mod_base + l->fileofs);
3617 if (l->filelen % sizeof(*in))
3618 Host_Error("Mod_Q2BSP_LoadVertices: funny lump size in %s",loadmodel->name);
3619 count = l->filelen / sizeof(*in);
3620 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3623 loadmodel->num = count;
3625 for (i = 0;i < count;i++, in++, out++)
3631 static void Mod_Q2BSP_LoadVisibility(lump_t *l)
3638 in = (void *)(mod_base + l->fileofs);
3639 if (l->filelen % sizeof(*in))
3640 Host_Error("Mod_Q2BSP_LoadVisibility: funny lump size in %s",loadmodel->name);
3641 count = l->filelen / sizeof(*in);
3642 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3645 loadmodel->num = count;
3647 for (i = 0;i < count;i++, in++, out++)
3653 static void Mod_Q2BSP_LoadNodes(lump_t *l)
3660 in = (void *)(mod_base + l->fileofs);
3661 if (l->filelen % sizeof(*in))
3662 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
3663 count = l->filelen / sizeof(*in);
3664 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3667 loadmodel->num = count;
3669 for (i = 0;i < count;i++, in++, out++)
3675 static void Mod_Q2BSP_LoadTexInfo(lump_t *l)
3682 in = (void *)(mod_base + l->fileofs);
3683 if (l->filelen % sizeof(*in))
3684 Host_Error("Mod_Q2BSP_LoadTexInfo: funny lump size in %s",loadmodel->name);
3685 count = l->filelen / sizeof(*in);
3686 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3689 loadmodel->num = count;
3691 for (i = 0;i < count;i++, in++, out++)
3697 static void Mod_Q2BSP_LoadFaces(lump_t *l)
3704 in = (void *)(mod_base + l->fileofs);
3705 if (l->filelen % sizeof(*in))
3706 Host_Error("Mod_Q2BSP_LoadFaces: funny lump size in %s",loadmodel->name);
3707 count = l->filelen / sizeof(*in);
3708 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3711 loadmodel->num = count;
3713 for (i = 0;i < count;i++, in++, out++)
3719 static void Mod_Q2BSP_LoadLighting(lump_t *l)
3726 in = (void *)(mod_base + l->fileofs);
3727 if (l->filelen % sizeof(*in))
3728 Host_Error("Mod_Q2BSP_LoadLighting: funny lump size in %s",loadmodel->name);
3729 count = l->filelen / sizeof(*in);
3730 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3733 loadmodel->num = count;
3735 for (i = 0;i < count;i++, in++, out++)
3741 static void Mod_Q2BSP_LoadLeafs(lump_t *l)
3748 in = (void *)(mod_base + l->fileofs);
3749 if (l->filelen % sizeof(*in))
3750 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
3751 count = l->filelen / sizeof(*in);
3752 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3755 loadmodel->num = count;
3757 for (i = 0;i < count;i++, in++, out++)
3763 static void Mod_Q2BSP_LoadLeafFaces(lump_t *l)
3770 in = (void *)(mod_base + l->fileofs);
3771 if (l->filelen % sizeof(*in))
3772 Host_Error("Mod_Q2BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
3773 count = l->filelen / sizeof(*in);
3774 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3777 loadmodel->num = count;
3779 for (i = 0;i < count;i++, in++, out++)
3785 static void Mod_Q2BSP_LoadLeafBrushes(lump_t *l)
3792 in = (void *)(mod_base + l->fileofs);
3793 if (l->filelen % sizeof(*in))
3794 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
3795 count = l->filelen / sizeof(*in);
3796 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3799 loadmodel->num = count;
3801 for (i = 0;i < count;i++, in++, out++)
3807 static void Mod_Q2BSP_LoadEdges(lump_t *l)
3814 in = (void *)(mod_base + l->fileofs);
3815 if (l->filelen % sizeof(*in))
3816 Host_Error("Mod_Q2BSP_LoadEdges: funny lump size in %s",loadmodel->name);
3817 count = l->filelen / sizeof(*in);
3818 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3821 loadmodel->num = count;
3823 for (i = 0;i < count;i++, in++, out++)
3829 static void Mod_Q2BSP_LoadSurfEdges(lump_t *l)
3836 in = (void *)(mod_base + l->fileofs);
3837 if (l->filelen % sizeof(*in))
3838 Host_Error("Mod_Q2BSP_LoadSurfEdges: funny lump size in %s",loadmodel->name);
3839 count = l->filelen / sizeof(*in);
3840 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3843 loadmodel->num = count;
3845 for (i = 0;i < count;i++, in++, out++)
3851 static void Mod_Q2BSP_LoadBrushes(lump_t *l)
3858 in = (void *)(mod_base + l->fileofs);
3859 if (l->filelen % sizeof(*in))
3860 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
3861 count = l->filelen / sizeof(*in);
3862 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3865 loadmodel->num = count;
3867 for (i = 0;i < count;i++, in++, out++)
3873 static void Mod_Q2BSP_LoadBrushSides(lump_t *l)
3880 in = (void *)(mod_base + l->fileofs);
3881 if (l->filelen % sizeof(*in))
3882 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
3883 count = l->filelen / sizeof(*in);
3884 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3887 loadmodel->num = count;
3889 for (i = 0;i < count;i++, in++, out++)
3895 static void Mod_Q2BSP_LoadAreas(lump_t *l)
3902 in = (void *)(mod_base + l->fileofs);
3903 if (l->filelen % sizeof(*in))
3904 Host_Error("Mod_Q2BSP_LoadAreas: funny lump size in %s",loadmodel->name);
3905 count = l->filelen / sizeof(*in);
3906 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3909 loadmodel->num = count;
3911 for (i = 0;i < count;i++, in++, out++)
3917 static void Mod_Q2BSP_LoadAreaPortals(lump_t *l)
3924 in = (void *)(mod_base + l->fileofs);
3925 if (l->filelen % sizeof(*in))
3926 Host_Error("Mod_Q2BSP_LoadAreaPortals: funny lump size in %s",loadmodel->name);
3927 count = l->filelen / sizeof(*in);
3928 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3931 loadmodel->num = count;
3933 for (i = 0;i < count;i++, in++, out++)
3939 static void Mod_Q2BSP_LoadModels(lump_t *l)
3946 in = (void *)(mod_base + l->fileofs);
3947 if (l->filelen % sizeof(*in))
3948 Host_Error("Mod_Q2BSP_LoadModels: funny lump size in %s",loadmodel->name);
3949 count = l->filelen / sizeof(*in);
3950 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3953 loadmodel->num = count;
3955 for (i = 0;i < count;i++, in++, out++)
3961 void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
3964 q2dheader_t *header;
3966 Host_Error("Mod_Q2BSP_Load: not yet implemented");
3968 mod->type = mod_brushq2;
3970 header = (q2dheader_t *)buffer;
3972 i = LittleLong(header->version);
3973 if (i != Q2BSPVERSION)
3974 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
3975 mod->brush.ishlbsp = false;
3976 mod->brush.ismcbsp = false;
3977 if (loadmodel->isworldmodel)
3979 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3980 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3983 mod_base = (unsigned char *)header;
3985 // swap all the lumps
3986 for (i = 0;i < (int) sizeof(*header) / 4;i++)
3987 ((int *)header)[i] = LittleLong(((int *)header)[i]);
3989 // store which lightmap format to use
3990 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3992 mod->brush.qw_md4sum = 0;
3993 mod->brush.qw_md4sum2 = 0;
3994 for (i = 0;i < Q2HEADER_LUMPS;i++)
3996 if (i == Q2LUMP_ENTITIES)
3998 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
3999 if (i == Q2LUMP_VISIBILITY || i == Q2LUMP_LEAFS || i == Q2LUMP_NODES)
4001 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
4004 Mod_Q2BSP_LoadEntities(&header->lumps[Q2LUMP_ENTITIES]);
4005 Mod_Q2BSP_LoadPlanes(&header->lumps[Q2LUMP_PLANES]);
4006 Mod_Q2BSP_LoadVertices(&header->lumps[Q2LUMP_VERTEXES]);
4007 Mod_Q2BSP_LoadVisibility(&header->lumps[Q2LUMP_VISIBILITY]);
4008 Mod_Q2BSP_LoadNodes(&header->lumps[Q2LUMP_NODES]);
4009 Mod_Q2BSP_LoadTexInfo(&header->lumps[Q2LUMP_TEXINFO]);
4010 Mod_Q2BSP_LoadFaces(&header->lumps[Q2LUMP_FACES]);
4011 Mod_Q2BSP_LoadLighting(&header->lumps[Q2LUMP_LIGHTING]);
4012 Mod_Q2BSP_LoadLeafs(&header->lumps[Q2LUMP_LEAFS]);
4013 Mod_Q2BSP_LoadLeafFaces(&header->lumps[Q2LUMP_LEAFFACES]);
4014 Mod_Q2BSP_LoadLeafBrushes(&header->lumps[Q2LUMP_LEAFBRUSHES]);
4015 Mod_Q2BSP_LoadEdges(&header->lumps[Q2LUMP_EDGES]);
4016 Mod_Q2BSP_LoadSurfEdges(&header->lumps[Q2LUMP_SURFEDGES]);
4017 Mod_Q2BSP_LoadBrushes(&header->lumps[Q2LUMP_BRUSHES]);
4018 Mod_Q2BSP_LoadBrushSides(&header->lumps[Q2LUMP_BRUSHSIDES]);
4019 Mod_Q2BSP_LoadAreas(&header->lumps[Q2LUMP_AREAS]);
4020 Mod_Q2BSP_LoadAreaPortals(&header->lumps[Q2LUMP_AREAPORTALS]);
4021 // LordHavoc: must go last because this makes the submodels
4022 Mod_Q2BSP_LoadModels(&header->lumps[Q2LUMP_MODELS]);
4025 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents);
4026 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents);
4028 static void Mod_Q3BSP_LoadEntities(lump_t *l)
4031 char key[128], value[MAX_INPUTLINE];
4033 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
4034 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
4035 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
4038 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
4039 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
4040 data = loadmodel->brush.entities;
4041 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
4042 if (data && COM_ParseTokenConsole(&data) && com_token[0] == '{')
4046 if (!COM_ParseTokenConsole(&data))
4048 if (com_token[0] == '}')
4049 break; // end of worldspawn
4050 if (com_token[0] == '_')
4051 strlcpy(key, com_token + 1, sizeof(key));
4053 strlcpy(key, com_token, sizeof(key));
4054 while (key[strlen(key)-1] == ' ') // remove trailing spaces
4055 key[strlen(key)-1] = 0;
4056 if (!COM_ParseTokenConsole(&data))
4058 strlcpy(value, com_token, sizeof(value));
4059 if (!strcmp("gridsize", key))
4061 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
4062 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
4068 // FIXME: make MAXSHADERS dynamic
4069 #define Q3SHADER_MAXSHADERS 4096
4070 #define Q3SHADER_MAXLAYERS 8
4072 typedef struct q3shaderinfo_layer_s
4078 char texturename[TEXTURE_MAXFRAMES][Q3PATHLENGTH];
4080 qboolean rgbgenvertex;
4081 qboolean alphagenvertex;
4083 q3shaderinfo_layer_t;
4085 typedef struct q3shaderinfo_s
4087 char name[Q3PATHLENGTH];
4092 qboolean vertexalpha;
4093 qboolean textureblendalpha;
4094 q3shaderinfo_layer_t *primarylayer, *backgroundlayer;
4095 q3shaderinfo_layer_t layers[Q3SHADER_MAXLAYERS];
4096 char skyboxname[Q3PATHLENGTH];
4100 int q3shaders_numshaders;
4101 q3shaderinfo_t q3shaders_shaders[Q3SHADER_MAXSHADERS];
4103 static void Mod_Q3BSP_LoadShaders(void)
4110 q3shaderinfo_t *shader;
4111 q3shaderinfo_layer_t *layer;
4113 char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
4114 search = FS_Search("scripts/*.shader", true, false);
4117 q3shaders_numshaders = 0;
4118 for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
4120 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
4123 while (COM_ParseToken(&text, false))
4125 if (q3shaders_numshaders >= Q3SHADER_MAXSHADERS)
4127 Con_Printf("Mod_Q3BSP_LoadShaders: too many shaders!\n");
4130 shader = q3shaders_shaders + q3shaders_numshaders++;
4131 memset(shader, 0, sizeof(*shader));
4132 strlcpy(shader->name, com_token, sizeof(shader->name));
4133 if (!COM_ParseToken(&text, false) || strcasecmp(com_token, "{"))
4135 Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
4138 while (COM_ParseToken(&text, false))
4140 if (!strcasecmp(com_token, "}"))
4142 if (!strcasecmp(com_token, "{"))
4144 if (shader->numlayers < Q3SHADER_MAXLAYERS)
4146 layer = shader->layers + shader->numlayers++;
4147 layer->rgbgenvertex = false;
4148 layer->alphagenvertex = false;
4149 layer->blendfunc[0] = GL_ONE;
4150 layer->blendfunc[1] = GL_ZERO;
4154 while (COM_ParseToken(&text, false))
4156 if (!strcasecmp(com_token, "}"))
4158 if (!strcasecmp(com_token, "\n"))
4163 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
4165 if (j < TEXTURE_MAXFRAMES + 4)
4167 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
4168 numparameters = j + 1;
4170 if (!COM_ParseToken(&text, true))
4173 if (developer.integer >= 100)
4175 Con_Printf("%s %i: ", shader->name, shader->numlayers - 1);
4176 for (j = 0;j < numparameters;j++)
4177 Con_Printf(" %s", parameter[j]);
4180 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
4182 if (numparameters == 2)
4184 if (!strcasecmp(parameter[1], "add"))
4186 layer->blendfunc[0] = GL_ONE;
4187 layer->blendfunc[1] = GL_ONE;
4189 else if (!strcasecmp(parameter[1], "filter"))
4191 layer->blendfunc[0] = GL_DST_COLOR;
4192 layer->blendfunc[1] = GL_ZERO;
4194 else if (!strcasecmp(parameter[1], "blend"))
4196 layer->blendfunc[0] = GL_SRC_ALPHA;
4197 layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
4200 else if (numparameters == 3)
4203 for (k = 0;k < 2;k++)
4205 if (!strcasecmp(parameter[k+1], "GL_ONE"))
4206 layer->blendfunc[k] = GL_ONE;
4207 else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
4208 layer->blendfunc[k] = GL_ZERO;
4209 else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
4210 layer->blendfunc[k] = GL_SRC_COLOR;
4211 else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
4212 layer->blendfunc[k] = GL_SRC_ALPHA;
4213 else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
4214 layer->blendfunc[k] = GL_DST_COLOR;
4215 else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
4216 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
4217 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
4218 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
4219 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
4220 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
4221 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
4222 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
4223 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
4224 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
4226 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
4230 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
4231 layer->alphatest = true;
4232 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
4234 if (!strcasecmp(parameter[0], "clampmap"))
4235 layer->clampmap = true;
4236 layer->numframes = 1;
4237 layer->framerate = 1;
4238 strlcpy(layer->texturename[0], parameter[1], sizeof(layer->texturename));
4239 if (!strcasecmp(parameter[1], "$lightmap"))
4240 shader->lighting = true;
4242 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
4245 layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
4246 layer->framerate = atof(parameter[1]);
4247 for (i = 0;i < layer->numframes;i++)
4248 strlcpy(layer->texturename[i], parameter[i + 2], sizeof(layer->texturename));
4250 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen") && !strcasecmp(parameter[1], "vertex"))
4251 layer->rgbgenvertex = true;
4252 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen") && !strcasecmp(parameter[1], "vertex"))
4253 layer->alphagenvertex = true;
4254 // break out a level if it was }
4255 if (!strcasecmp(com_token, "}"))
4258 if (layer->rgbgenvertex)
4259 shader->lighting = true;
4260 if (layer->alphagenvertex)
4262 if (layer == shader->layers + 0)
4264 // vertex controlled transparency
4265 shader->vertexalpha = true;
4269 // multilayer terrain shader or similar
4270 shader->textureblendalpha = true;
4276 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
4278 if (j < TEXTURE_MAXFRAMES + 4)
4280 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
4281 numparameters = j + 1;
4283 if (!COM_ParseToken(&text, true))
4286 if (fileindex == 0 && !strcasecmp(com_token, "}"))
4288 if (developer.integer >= 100)
4290 Con_Printf("%s: ", shader->name);
4291 for (j = 0;j < numparameters;j++)
4292 Con_Printf(" %s", parameter[j]);
4295 if (numparameters < 1)
4297 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
4299 if (!strcasecmp(parameter[1], "alphashadow"))
4300 shader->surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
4301 else if (!strcasecmp(parameter[1], "areaportal"))
4302 shader->surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
4303 else if (!strcasecmp(parameter[1], "botclip"))
4304 shader->surfaceparms |= Q3SURFACEPARM_BOTCLIP;
4305 else if (!strcasecmp(parameter[1], "clusterportal"))
4306 shader->surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
4307 else if (!strcasecmp(parameter[1], "detail"))
4308 shader->surfaceparms |= Q3SURFACEPARM_DETAIL;
4309 else if (!strcasecmp(parameter[1], "donotenter"))
4310 shader->surfaceparms |= Q3SURFACEPARM_DONOTENTER;
4311 else if (!strcasecmp(parameter[1], "dust"))
4312 shader->surfaceparms |= Q3SURFACEPARM_DUST;
4313 else if (!strcasecmp(parameter[1], "hint"))
4314 shader->surfaceparms |= Q3SURFACEPARM_HINT;
4315 else if (!strcasecmp(parameter[1], "fog"))
4316 shader->surfaceparms |= Q3SURFACEPARM_FOG;
4317 else if (!strcasecmp(parameter[1], "lava"))
4318 shader->surfaceparms |= Q3SURFACEPARM_LAVA;
4319 else if (!strcasecmp(parameter[1], "lightfilter"))
4320 shader->surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
4321 else if (!strcasecmp(parameter[1], "lightgrid"))
4322 shader->surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
4323 else if (!strcasecmp(parameter[1], "metalsteps"))
4324 shader->surfaceparms |= Q3SURFACEPARM_METALSTEPS;
4325 else if (!strcasecmp(parameter[1], "nodamage"))
4326 shader->surfaceparms |= Q3SURFACEPARM_NODAMAGE;
4327 else if (!strcasecmp(parameter[1], "nodlight"))
4328 shader->surfaceparms |= Q3SURFACEPARM_NODLIGHT;
4329 else if (!strcasecmp(parameter[1], "nodraw"))
4330 shader->surfaceparms |= Q3SURFACEPARM_NODRAW;
4331 else if (!strcasecmp(parameter[1], "nodrop"))
4332 shader->surfaceparms |= Q3SURFACEPARM_NODROP;
4333 else if (!strcasecmp(parameter[1], "noimpact"))
4334 shader->surfaceparms |= Q3SURFACEPARM_NOIMPACT;
4335 else if (!strcasecmp(parameter[1], "nolightmap"))
4336 shader->surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
4337 else if (!strcasecmp(parameter[1], "nomarks"))
4338 shader->surfaceparms |= Q3SURFACEPARM_NOMARKS;
4339 else if (!strcasecmp(parameter[1], "nomipmaps"))
4340 shader->surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
4341 else if (!strcasecmp(parameter[1], "nonsolid"))
4342 shader->surfaceparms |= Q3SURFACEPARM_NONSOLID;
4343 else if (!strcasecmp(parameter[1], "origin"))
4344 shader->surfaceparms |= Q3SURFACEPARM_ORIGIN;
4345 else if (!strcasecmp(parameter[1], "playerclip"))
4346 shader->surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
4347 else if (!strcasecmp(parameter[1], "sky"))
4348 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4349 else if (!strcasecmp(parameter[1], "slick"))
4350 shader->surfaceparms |= Q3SURFACEPARM_SLICK;
4351 else if (!strcasecmp(parameter[1], "slime"))
4352 shader->surfaceparms |= Q3SURFACEPARM_SLIME;
4353 else if (!strcasecmp(parameter[1], "structural"))
4354 shader->surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
4355 else if (!strcasecmp(parameter[1], "trans"))
4356 shader->surfaceparms |= Q3SURFACEPARM_TRANS;
4357 else if (!strcasecmp(parameter[1], "water"))
4358 shader->surfaceparms |= Q3SURFACEPARM_WATER;
4359 else if (!strcasecmp(parameter[1], "pointlight"))
4360 shader->surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
4361 else if (!strcasecmp(parameter[1], "antiportal"))
4362 shader->surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
4364 Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
4366 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
4368 // some q3 skies don't have the sky parm set
4369 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4370 strlcpy(shader->skyboxname, parameter[1], sizeof(shader->skyboxname));
4372 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
4374 // some q3 skies don't have the sky parm set
4375 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4376 if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
4377 strlcpy(shader->skyboxname, parameter[1], sizeof(shader->skyboxname));
4379 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
4381 if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
4382 shader->textureflags |= Q3TEXTUREFLAG_TWOSIDED;
4384 else if (!strcasecmp(parameter[0], "nomipmaps"))
4385 shader->surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
4386 else if (!strcasecmp(parameter[0], "nopicmip"))
4387 shader->textureflags |= Q3TEXTUREFLAG_NOPICMIP;
4388 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
4390 if (!strcasecmp(parameter[1], "autosprite") && numparameters == 2)
4391 shader->textureflags |= Q3TEXTUREFLAG_AUTOSPRITE;
4392 if (!strcasecmp(parameter[1], "autosprite2") && numparameters == 2)
4393 shader->textureflags |= Q3TEXTUREFLAG_AUTOSPRITE2;
4396 // identify if this is a blended terrain shader or similar
4397 if (shader->numlayers)
4399 shader->primarylayer = shader->layers + 0;
4400 if ((shader->layers[1].blendfunc[0] == GL_SRC_ALPHA && shader->layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA) || shader->layers[1].alphatest)
4402 // terrain blending or other effects
4403 shader->backgroundlayer = shader->layers + 0;
4404 shader->primarylayer = shader->layers + 1;
4406 // now see if the lightmap came first, and if so choose the second texture instead
4407 if (!strcasecmp(shader->primarylayer->texturename[0], "$lightmap"))
4408 shader->primarylayer = shader->layers + 1;
4415 q3shaderinfo_t *Mod_Q3BSP_LookupShader(const char *name)
4418 for (i = 0;i < Q3SHADER_MAXSHADERS;i++)
4419 if (!strcasecmp(q3shaders_shaders[i].name, name))
4420 return q3shaders_shaders + i;
4424 static void Mod_Q3BSP_LoadTextures(lump_t *l)
4430 in = (q3dtexture_t *)(mod_base + l->fileofs);
4431 if (l->filelen % sizeof(*in))
4432 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
4433 count = l->filelen / sizeof(*in);
4434 out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4436 loadmodel->data_textures = out;
4437 loadmodel->num_textures = count;
4439 // parse the Q3 shader files
4440 Mod_Q3BSP_LoadShaders();
4443 for (i = 0;i < count;i++, in++, out++)
4445 q3shaderinfo_t *shader;
4446 strlcpy (out->name, in->name, sizeof (out->name));
4447 out->surfaceflags = LittleLong(in->surfaceflags);
4448 out->supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in->contents));
4449 shader = Mod_Q3BSP_LookupShader(out->name);
4452 out->surfaceparms = shader->surfaceparms;
4453 out->textureflags = shader->textureflags;
4454 out->basematerialflags = 0;
4455 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
4457 out->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
4458 if (shader->skyboxname[0])
4460 // quake3 seems to append a _ to the skybox name, so this must do so as well
4461 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
4464 else if ((out->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
4465 out->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
4466 else if (shader->surfaceparms & Q3SURFACEPARM_LAVA)
4467 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_NOSHADOW;
4468 else if (shader->surfaceparms & Q3SURFACEPARM_SLIME)
4469 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_WATERALPHA | MATERIALFLAG_NOSHADOW;
4470 else if (shader->surfaceparms & Q3SURFACEPARM_WATER)
4471 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_WATERALPHA | MATERIALFLAG_NOSHADOW;
4473 out->basematerialflags |= MATERIALFLAG_WALL;
4474 if (shader->layers[0].alphatest)
4475 out->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_NOSHADOW;
4476 if (shader->textureflags & (Q3TEXTUREFLAG_TWOSIDED | Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2))
4477 out->basematerialflags |= MATERIALFLAG_NOSHADOW;
4478 out->customblendfunc[0] = GL_ONE;
4479 out->customblendfunc[1] = GL_ZERO;
4480 if (shader->numlayers > 0)
4482 out->customblendfunc[0] = shader->layers[0].blendfunc[0];
4483 out->customblendfunc[1] = shader->layers[0].blendfunc[1];
4485 Q3 shader blendfuncs actually used in the game (* = supported by DP)
4486 * additive GL_ONE GL_ONE
4487 additive weird GL_ONE GL_SRC_ALPHA
4488 additive weird 2 GL_ONE GL_ONE_MINUS_SRC_ALPHA
4489 * alpha GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
4490 alpha inverse GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
4491 brighten GL_DST_COLOR GL_ONE
4492 brighten GL_ONE GL_SRC_COLOR
4493 brighten weird GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
4494 brighten weird 2 GL_DST_COLOR GL_SRC_ALPHA
4495 * modulate GL_DST_COLOR GL_ZERO
4496 * modulate GL_ZERO GL_SRC_COLOR
4497 modulate inverse GL_ZERO GL_ONE_MINUS_SRC_COLOR
4498 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
4499 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
4500 * modulate x2 GL_DST_COLOR GL_SRC_COLOR
4501 * no blend GL_ONE GL_ZERO
4502 nothing GL_ZERO GL_ONE
4504 // if not opaque, figure out what blendfunc to use
4505 if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
4507 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
4508 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_NOSHADOW;
4509 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
4510 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_NOSHADOW;
4511 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
4512 out->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_NOSHADOW;
4514 out->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_NOSHADOW;
4517 if (!shader->lighting)
4518 out->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
4519 if (shader->primarylayer && cls.state != ca_dedicated)
4522 out->numskinframes = shader->primarylayer->numframes;
4523 out->skinframerate = shader->primarylayer->framerate;
4524 for (j = 0;j < shader->primarylayer->numframes;j++)
4525 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))
4526 Con_Printf("%s: could not load texture \"%s\" (frame %i) for shader \"%s\"\n", loadmodel->name, shader->primarylayer->texturename[j], j, out->name);
4528 if (shader->backgroundlayer && cls.state != ca_dedicated)
4531 out->backgroundnumskinframes = shader->backgroundlayer->numframes;
4532 out->backgroundskinframerate = shader->backgroundlayer->framerate;
4533 for (j = 0;j < shader->backgroundlayer->numframes;j++)
4534 if (!Mod_LoadSkinFrame(&out->backgroundskinframes[j], shader->backgroundlayer->texturename[j], ((shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | (shader->textureflags & Q3TEXTUREFLAG_NOPICMIP ? 0 : TEXF_PICMIP) | (shader->backgroundlayer->clampmap ? TEXF_CLAMP : 0), false, true))
4535 Con_Printf("%s: could not load texture \"%s\" (frame %i) for shader \"%s\"\n", loadmodel->name, shader->backgroundlayer->texturename[j], j, out->name);
4538 else if (!strcmp(out->name, "noshader"))
4539 out->surfaceparms = 0;
4543 Con_DPrintf("%s: No shader found for texture \"%s\"\n", loadmodel->name, out->name);
4544 out->surfaceparms = 0;
4545 if (out->surfaceflags & Q3SURFACEFLAG_NODRAW)
4546 out->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
4547 else if (out->surfaceflags & Q3SURFACEFLAG_SKY)
4548 out->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
4550 out->basematerialflags |= MATERIALFLAG_WALL;
4551 // these are defaults
4552 //if (!strncmp(out->name, "textures/skies/", 15))
4553 // out->surfaceparms |= Q3SURFACEPARM_SKY;
4554 //if (!strcmp(out->name, "caulk") || !strcmp(out->name, "common/caulk") || !strcmp(out->name, "textures/common/caulk")
4555 // || !strcmp(out->name, "nodraw") || !strcmp(out->name, "common/nodraw") || !strcmp(out->name, "textures/common/nodraw"))
4556 // out->surfaceparms |= Q3SURFACEPARM_NODRAW;
4557 //if (R_TextureHasAlpha(out->skinframes[0].base))
4558 // out->surfaceparms |= Q3SURFACEPARM_TRANS;
4559 if (cls.state != ca_dedicated)
4560 if (!Mod_LoadSkinFrame(&out->skinframes[0], out->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, true))
4561 Con_Printf("%s: could not load texture for missing shader \"%s\"\n", loadmodel->name, out->name);
4563 // init the animation variables
4564 out->currentframe = out;
4565 out->currentskinframe = &out->skinframes[0];
4566 out->backgroundcurrentskinframe = &out->backgroundskinframes[0];
4569 Con_DPrintf("%s: %i textures missing shaders\n", loadmodel->name, c);
4572 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
4578 in = (q3dplane_t *)(mod_base + l->fileofs);
4579 if (l->filelen % sizeof(*in))
4580 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
4581 count = l->filelen / sizeof(*in);
4582 out = (mplane_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4584 loadmodel->brush.data_planes = out;
4585 loadmodel->brush.num_planes = count;
4587 for (i = 0;i < count;i++, in++, out++)
4589 out->normal[0] = LittleFloat(in->normal[0]);
4590 out->normal[1] = LittleFloat(in->normal[1]);
4591 out->normal[2] = LittleFloat(in->normal[2]);
4592 out->dist = LittleFloat(in->dist);
4597 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
4600 q3mbrushside_t *out;
4603 in = (q3dbrushside_t *)(mod_base + l->fileofs);
4604 if (l->filelen % sizeof(*in))
4605 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4606 count = l->filelen / sizeof(*in);
4607 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4609 loadmodel->brush.data_brushsides = out;
4610 loadmodel->brush.num_brushsides = count;
4612 for (i = 0;i < count;i++, in++, out++)
4614 n = LittleLong(in->planeindex);
4615 if (n < 0 || n >= loadmodel->brush.num_planes)
4616 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
4617 out->plane = loadmodel->brush.data_planes + n;
4618 n = LittleLong(in->textureindex);
4619 if (n < 0 || n >= loadmodel->num_textures)
4620 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4621 out->texture = loadmodel->data_textures + n;
4625 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
4629 int i, j, n, c, count, maxplanes;
4630 colplanef_t *planes;
4632 in = (q3dbrush_t *)(mod_base + l->fileofs);
4633 if (l->filelen % sizeof(*in))
4634 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4635 count = l->filelen / sizeof(*in);
4636 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4638 loadmodel->brush.data_brushes = out;
4639 loadmodel->brush.num_brushes = count;
4644 for (i = 0;i < count;i++, in++, out++)
4646 n = LittleLong(in->firstbrushside);
4647 c = LittleLong(in->numbrushsides);
4648 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
4649 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", n, n + c, loadmodel->brush.num_brushsides);
4650 out->firstbrushside = loadmodel->brush.data_brushsides + n;
4651 out->numbrushsides = c;
4652 n = LittleLong(in->textureindex);
4653 if (n < 0 || n >= loadmodel->num_textures)
4654 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4655 out->texture = loadmodel->data_textures + n;
4657 // make a list of mplane_t structs to construct a colbrush from
4658 if (maxplanes < out->numbrushsides)
4660 maxplanes = out->numbrushsides;
4663 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
4665 for (j = 0;j < out->numbrushsides;j++)
4667 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4668 planes[j].dist = out->firstbrushside[j].plane->dist;
4669 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
4670 planes[j].texture = out->firstbrushside[j].texture;
4672 // make the colbrush from the planes
4673 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents);
4679 static void Mod_Q3BSP_LoadEffects(lump_t *l)
4685 in = (q3deffect_t *)(mod_base + l->fileofs);
4686 if (l->filelen % sizeof(*in))
4687 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
4688 count = l->filelen / sizeof(*in);
4689 out = (q3deffect_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4691 loadmodel->brushq3.data_effects = out;
4692 loadmodel->brushq3.num_effects = count;
4694 for (i = 0;i < count;i++, in++, out++)
4696 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
4697 n = LittleLong(in->brushindex);
4698 if (n >= loadmodel->brush.num_brushes)
4700 Con_Printf("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes), setting to -1\n", n, loadmodel->brush.num_brushes);
4703 out->brushindex = n;
4704 out->unknown = LittleLong(in->unknown);
4708 static void Mod_Q3BSP_LoadVertices(lump_t *l)
4713 in = (q3dvertex_t *)(mod_base + l->fileofs);
4714 if (l->filelen % sizeof(*in))
4715 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
4716 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
4717 loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 3 + 2 + 2 + 4)));
4718 loadmodel->brushq3.data_normal3f = loadmodel->brushq3.data_vertex3f + count * 3;
4719 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_normal3f + count * 3;
4720 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
4721 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
4723 for (i = 0;i < count;i++, in++)
4725 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
4726 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
4727 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
4728 loadmodel->brushq3.data_normal3f[i * 3 + 0] = LittleFloat(in->normal3f[0]);
4729 loadmodel->brushq3.data_normal3f[i * 3 + 1] = LittleFloat(in->normal3f[1]);
4730 loadmodel->brushq3.data_normal3f[i * 3 + 2] = LittleFloat(in->normal3f[2]);
4731 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
4732 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
4733 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
4734 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
4735 // svector/tvector are calculated later in face loading
4736 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
4737 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
4738 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
4739 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
4743 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
4749 in = (int *)(mod_base + l->fileofs);
4750 if (l->filelen % sizeof(int[3]))
4751 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
4752 count = l->filelen / sizeof(*in);
4753 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4755 loadmodel->brushq3.num_triangles = count / 3;
4756 loadmodel->brushq3.data_element3i = out;
4758 for (i = 0;i < count;i++, in++, out++)
4760 *out = LittleLong(*in);
4761 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
4763 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
4769 static void Mod_Q3BSP_LoadLightmaps(lump_t *l)
4778 in = (q3dlightmap_t *)(mod_base + l->fileofs);
4779 if (l->filelen % sizeof(*in))
4780 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
4781 count = l->filelen / sizeof(*in);
4782 out = (rtexture_t **)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4784 loadmodel->brushq3.data_lightmaps = out;
4785 loadmodel->brushq3.num_lightmaps = count;
4787 // deluxemapped q3bsp files have an even number of lightmaps, and surfaces
4788 // always index even numbered ones (0, 2, 4, ...), the odd numbered
4789 // lightmaps are the deluxemaps (light direction textures), so if we
4790 // encounter any odd numbered lightmaps it is not a deluxemapped bsp, it
4791 // is also not a deluxemapped bsp if it has an odd number of lightmaps or
4793 loadmodel->brushq3.deluxemapping = true;
4794 loadmodel->brushq3.deluxemapping_modelspace = true;
4795 if (count < 2 || (count & 1))
4796 loadmodel->brushq3.deluxemapping = false;
4798 // q3map2 sometimes (or always?) makes a second blank lightmap for no
4799 // reason when only one lightmap is used, which can throw off the
4800 // deluxemapping detection method, so check 2-lightmap bsp's specifically
4801 // to see if the second lightmap is blank, if so it is not deluxemapped.
4804 c = in[count - 1].rgb;
4805 for (i = 0;i < 128*128*3;i++)
4810 // all pixels in the unused lightmap were black...
4811 loadmodel->brushq3.deluxemapping = false;
4815 // further deluxemapping detection is done in Mod_Q3BSP_LoadFaces
4817 for (i = 0;i < count;i++, in++, out++)
4818 *out = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", i), 128, 128, in->rgb, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
4821 static void Mod_Q3BSP_LoadFaces(lump_t *l)
4823 q3dface_t *in, *oldin;
4824 msurface_t *out, *oldout;
4825 int i, oldi, j, n, count, invalidelements, patchsize[2], finalwidth, finalheight, xtess, ytess, finalvertices, finaltriangles, firstvertex, firstelement, type, oldnumtriangles, oldnumtriangles2, meshvertices, meshtriangles, numvertices, numtriangles;
4826 //int *originalelement3i;
4827 //int *originalneighbor3i;
4828 float *originalvertex3f;
4829 //float *originalsvector3f;
4830 //float *originaltvector3f;
4831 float *originalnormal3f;
4832 float *originalcolor4f;
4833 float *originaltexcoordtexture2f;
4834 float *originaltexcoordlightmap2f;
4837 in = (q3dface_t *)(mod_base + l->fileofs);
4838 if (l->filelen % sizeof(*in))
4839 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
4840 count = l->filelen / sizeof(*in);
4841 out = (msurface_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4843 loadmodel->data_surfaces = out;
4844 loadmodel->num_surfaces = count;
4846 // 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
4847 if (loadmodel->brushq3.deluxemapping)
4849 for (i = 0;i < count;i++)
4851 n = LittleLong(in[i].lightmapindex);
4852 if (n >= 0 && ((n & 1) || n + 1 >= loadmodel->brushq3.num_lightmaps))
4854 loadmodel->brushq3.deluxemapping = false;
4859 Con_DPrintf("%s is %sdeluxemapped\n", loadmodel->name, loadmodel->brushq3.deluxemapping ? "" : "not ");
4867 for (;i < count;i++, in++, out++)
4869 // check face type first
4870 type = LittleLong(in->type);
4871 if (type != Q3FACETYPE_POLYGON
4872 && type != Q3FACETYPE_PATCH
4873 && type != Q3FACETYPE_MESH
4874 && type != Q3FACETYPE_FLARE)
4876 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
4880 n = LittleLong(in->textureindex);
4881 if (n < 0 || n >= loadmodel->num_textures)
4883 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
4886 out->texture = loadmodel->data_textures + n;
4887 n = LittleLong(in->effectindex);
4888 if (n < -1 || n >= loadmodel->brushq3.num_effects)
4890 if (developer.integer >= 100)
4891 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
4897 out->effect = loadmodel->brushq3.data_effects + n;
4898 n = LittleLong(in->lightmapindex);
4899 if (n >= loadmodel->brushq3.num_lightmaps)
4901 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_lightmaps);
4908 out->lightmaptexture = NULL;
4909 out->deluxemaptexture = r_texture_blanknormalmap;
4913 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n];
4914 if (loadmodel->brushq3.deluxemapping)
4915 out->deluxemaptexture = loadmodel->brushq3.data_lightmaps[n+1];
4917 out->deluxemaptexture = r_texture_blanknormalmap;
4920 firstvertex = LittleLong(in->firstvertex);
4921 numvertices = LittleLong(in->numvertices);
4922 firstelement = LittleLong(in->firstelement);
4923 numtriangles = LittleLong(in->numelements) / 3;
4924 if (numtriangles * 3 != LittleLong(in->numelements))
4926 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));
4929 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
4931 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);
4934 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
4936 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);
4941 case Q3FACETYPE_POLYGON:
4942 case Q3FACETYPE_MESH:
4943 // no processing necessary
4945 case Q3FACETYPE_PATCH:
4946 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4947 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4948 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))
4950 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
4953 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4954 // convert patch to Q3FACETYPE_MESH
4955 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4956 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4957 // bound to user settings
4958 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4959 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4960 // bound to sanity settings
4961 xtess = bound(1, xtess, 1024);
4962 ytess = bound(1, ytess, 1024);
4963 // bound to user limit on vertices
4964 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4971 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4972 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4973 numvertices = finalwidth * finalheight;
4974 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4976 case Q3FACETYPE_FLARE:
4977 if (developer.integer >= 100)
4978 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
4982 out->num_vertices = numvertices;
4983 out->num_triangles = numtriangles;
4984 meshvertices += out->num_vertices;
4985 meshtriangles += out->num_triangles;
4991 Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true, false);
4994 for (;i < count && meshvertices + out->num_vertices <= loadmodel->surfmesh.num_vertices;i++, in++, out++)
4996 if (out->num_vertices < 3 || out->num_triangles < 1)
4999 type = LittleLong(in->type);
5000 firstvertex = LittleLong(in->firstvertex);
5001 firstelement = LittleLong(in->firstelement);
5002 out->num_firstvertex = meshvertices;
5003 out->num_firsttriangle = meshtriangles;
5006 case Q3FACETYPE_POLYGON:
5007 case Q3FACETYPE_MESH:
5008 // no processing necessary
5009 for (j = 0;j < out->num_vertices;j++)
5011 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
5012 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
5013 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
5014 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 0];
5015 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 1];
5016 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 2];
5017 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
5018 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
5019 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
5020 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
5021 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
5022 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
5023 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
5024 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
5026 for (j = 0;j < out->num_triangles*3;j++)
5027 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
5029 case Q3FACETYPE_PATCH:
5030 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
5031 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
5032 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
5033 originalnormal3f = loadmodel->brushq3.data_normal3f + firstvertex * 3;
5034 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
5035 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
5036 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
5037 // convert patch to Q3FACETYPE_MESH
5038 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5039 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5040 // bound to user settings
5041 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
5042 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
5043 // bound to sanity settings
5044 xtess = bound(1, xtess, 1024);
5045 ytess = bound(1, ytess, 1024);
5046 // bound to user limit on vertices
5047 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
5054 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
5055 finalheight = ((patchsize[1] - 1) * ytess) + 1;
5056 finalvertices = finalwidth * finalheight;
5057 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
5058 type = Q3FACETYPE_MESH;
5059 // generate geometry
5060 // (note: normals are skipped because they get recalculated)
5061 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
5062 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalnormal3f, xtess, ytess);
5063 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
5064 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
5065 Q3PatchTesselateFloat(4, sizeof(float[4]), (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
5066 Q3PatchTriangleElements((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
5067 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);
5068 if (developer.integer >= 100)
5070 if (out->num_triangles < finaltriangles)
5071 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);
5073 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);
5075 // q3map does not put in collision brushes for curves... ugh
5076 // build the lower quality collision geometry
5077 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
5078 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
5079 // bound to user settings
5080 xtess = bound(r_subdivisions_collision_mintess.integer, xtess, r_subdivisions_collision_maxtess.integer);
5081 ytess = bound(r_subdivisions_collision_mintess.integer, ytess, r_subdivisions_collision_maxtess.integer);
5082 // bound to sanity settings
5083 xtess = bound(1, xtess, 1024);
5084 ytess = bound(1, ytess, 1024);
5085 // bound to user limit on vertices
5086 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_collision_maxvertices.integer, 262144))
5093 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
5094 finalheight = ((patchsize[1] - 1) * ytess) + 1;
5095 finalvertices = finalwidth * finalheight;
5096 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
5098 out->data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
5099 out->data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
5100 out->num_collisionvertices = finalvertices;
5101 out->num_collisiontriangles = finaltriangles;
5102 Q3PatchTesselateFloat(3, sizeof(float[3]), out->data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
5103 Q3PatchTriangleElements(out->data_collisionelement3i, finalwidth, finalheight, 0);
5105 //Mod_SnapVertices(3, out->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), 0.25);
5106 Mod_SnapVertices(3, out->num_collisionvertices, out->data_collisionvertex3f, 1);
5108 oldnumtriangles = out->num_triangles;
5109 oldnumtriangles2 = out->num_collisiontriangles;
5110 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(out->num_collisiontriangles, out->data_collisionelement3i, out->data_collisionelement3i, out->data_collisionvertex3f);
5111 if (developer.integer >= 100)
5112 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);
5117 meshvertices += out->num_vertices;
5118 meshtriangles += out->num_triangles;
5119 for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
5120 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)
5122 if (invalidelements)
5124 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);
5125 for (j = 0;j < out->num_triangles * 3;j++)
5127 Con_Printf(" %i", (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
5128 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)
5129 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
5133 // calculate a bounding box
5134 VectorClear(out->mins);
5135 VectorClear(out->maxs);
5136 if (out->num_vertices)
5138 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->mins);
5139 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->maxs);
5140 for (j = 1, v = (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
5142 out->mins[0] = min(out->mins[0], v[0]);
5143 out->maxs[0] = max(out->maxs[0], v[0]);
5144 out->mins[1] = min(out->mins[1], v[1]);
5145 out->maxs[1] = max(out->maxs[1], v[1]);
5146 out->mins[2] = min(out->mins[2], v[2]);
5147 out->maxs[2] = max(out->maxs[2], v[2]);
5149 out->mins[0] -= 1.0f;
5150 out->mins[1] -= 1.0f;
5151 out->mins[2] -= 1.0f;
5152 out->maxs[0] += 1.0f;
5153 out->maxs[1] += 1.0f;
5154 out->maxs[2] += 1.0f;
5156 // set lightmap styles for consistency with q1bsp
5157 //out->lightmapinfo->styles[0] = 0;
5158 //out->lightmapinfo->styles[1] = 255;
5159 //out->lightmapinfo->styles[2] = 255;
5160 //out->lightmapinfo->styles[3] = 255;
5163 // for per pixel lighting
5164 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);
5166 // free the no longer needed vertex data
5167 loadmodel->brushq3.num_vertices = 0;
5168 if (loadmodel->brushq3.data_vertex3f)
5169 Mem_Free(loadmodel->brushq3.data_vertex3f);
5170 loadmodel->brushq3.data_vertex3f = NULL;
5171 loadmodel->brushq3.data_normal3f = NULL;
5172 loadmodel->brushq3.data_texcoordtexture2f = NULL;
5173 loadmodel->brushq3.data_texcoordlightmap2f = NULL;
5174 loadmodel->brushq3.data_color4f = NULL;
5175 // free the no longer needed triangle data
5176 loadmodel->brushq3.num_triangles = 0;
5177 if (loadmodel->brushq3.data_element3i)
5178 Mem_Free(loadmodel->brushq3.data_element3i);
5179 loadmodel->brushq3.data_element3i = NULL;
5182 static void Mod_Q3BSP_LoadModels(lump_t *l)
5186 int i, j, n, c, count;
5188 in = (q3dmodel_t *)(mod_base + l->fileofs);
5189 if (l->filelen % sizeof(*in))
5190 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
5191 count = l->filelen / sizeof(*in);
5192 out = (q3dmodel_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5194 loadmodel->brushq3.data_models = out;
5195 loadmodel->brushq3.num_models = count;
5197 for (i = 0;i < count;i++, in++, out++)
5199 for (j = 0;j < 3;j++)
5201 out->mins[j] = LittleFloat(in->mins[j]);
5202 out->maxs[j] = LittleFloat(in->maxs[j]);
5204 n = LittleLong(in->firstface);
5205 c = LittleLong(in->numfaces);
5206 if (n < 0 || n + c > loadmodel->num_surfaces)
5207 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)", n, n + c, loadmodel->num_surfaces);
5210 n = LittleLong(in->firstbrush);
5211 c = LittleLong(in->numbrushes);
5212 if (n < 0 || n + c > loadmodel->brush.num_brushes)
5213 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)", n, n + c, loadmodel->brush.num_brushes);
5214 out->firstbrush = n;
5215 out->numbrushes = c;
5219 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
5225 in = (int *)(mod_base + l->fileofs);
5226 if (l->filelen % sizeof(*in))
5227 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
5228 count = l->filelen / sizeof(*in);
5229 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5231 loadmodel->brush.data_leafbrushes = out;
5232 loadmodel->brush.num_leafbrushes = count;
5234 for (i = 0;i < count;i++, in++, out++)
5236 n = LittleLong(*in);
5237 if (n < 0 || n >= loadmodel->brush.num_brushes)
5238 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)", n, loadmodel->brush.num_brushes);
5243 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
5249 in = (int *)(mod_base + l->fileofs);
5250 if (l->filelen % sizeof(*in))
5251 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
5252 count = l->filelen / sizeof(*in);
5253 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5255 loadmodel->brush.data_leafsurfaces = out;
5256 loadmodel->brush.num_leafsurfaces = count;
5258 for (i = 0;i < count;i++, in++, out++)
5260 n = LittleLong(*in);
5261 if (n < 0 || n >= loadmodel->num_surfaces)
5262 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)", n, loadmodel->num_surfaces);
5267 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
5271 int i, j, n, c, count;
5273 in = (q3dleaf_t *)(mod_base + l->fileofs);
5274 if (l->filelen % sizeof(*in))
5275 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
5276 count = l->filelen / sizeof(*in);
5277 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5279 loadmodel->brush.data_leafs = out;
5280 loadmodel->brush.num_leafs = count;
5282 for (i = 0;i < count;i++, in++, out++)
5286 out->clusterindex = LittleLong(in->clusterindex);
5287 out->areaindex = LittleLong(in->areaindex);
5288 for (j = 0;j < 3;j++)
5290 // yes the mins/maxs are ints
5291 out->mins[j] = LittleLong(in->mins[j]) - 1;
5292 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5294 n = LittleLong(in->firstleafface);
5295 c = LittleLong(in->numleaffaces);
5296 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
5297 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)", n, n + c, loadmodel->brush.num_leafsurfaces);
5298 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
5299 out->numleafsurfaces = c;
5300 n = LittleLong(in->firstleafbrush);
5301 c = LittleLong(in->numleafbrushes);
5302 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
5303 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)", n, n + c, loadmodel->brush.num_leafbrushes);
5304 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
5305 out->numleafbrushes = c;
5309 static void Mod_Q3BSP_LoadNodes(lump_t *l)
5315 in = (q3dnode_t *)(mod_base + l->fileofs);
5316 if (l->filelen % sizeof(*in))
5317 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
5318 count = l->filelen / sizeof(*in);
5319 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5321 loadmodel->brush.data_nodes = out;
5322 loadmodel->brush.num_nodes = count;
5324 for (i = 0;i < count;i++, in++, out++)
5327 n = LittleLong(in->planeindex);
5328 if (n < 0 || n >= loadmodel->brush.num_planes)
5329 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5330 out->plane = loadmodel->brush.data_planes + n;
5331 for (j = 0;j < 2;j++)
5333 n = LittleLong(in->childrenindex[j]);
5336 if (n >= loadmodel->brush.num_nodes)
5337 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)", n, loadmodel->brush.num_nodes);
5338 out->children[j] = loadmodel->brush.data_nodes + n;
5343 if (n >= loadmodel->brush.num_leafs)
5344 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)", n, loadmodel->brush.num_leafs);
5345 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
5348 for (j = 0;j < 3;j++)
5350 // yes the mins/maxs are ints
5351 out->mins[j] = LittleLong(in->mins[j]) - 1;
5352 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5356 // set the parent pointers
5357 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
5360 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
5363 q3dlightgrid_t *out;
5366 in = (q3dlightgrid_t *)(mod_base + l->fileofs);
5367 if (l->filelen % sizeof(*in))
5368 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
5369 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
5370 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
5371 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
5372 loadmodel->brushq3.num_lightgrid_imins[0] = (int)ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5373 loadmodel->brushq3.num_lightgrid_imins[1] = (int)ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5374 loadmodel->brushq3.num_lightgrid_imins[2] = (int)ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5375 loadmodel->brushq3.num_lightgrid_imaxs[0] = (int)floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5376 loadmodel->brushq3.num_lightgrid_imaxs[1] = (int)floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5377 loadmodel->brushq3.num_lightgrid_imaxs[2] = (int)floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5378 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
5379 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
5380 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
5381 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
5382 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]);
5383 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]);
5385 // if lump is empty there is nothing to load, we can deal with that in the LightPoint code
5388 if (l->filelen < count * (int)sizeof(*in))
5389 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]);
5390 if (l->filelen != count * (int)sizeof(*in))
5391 Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", (int)(count * sizeof(*in)), l->filelen);
5392 out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5393 loadmodel->brushq3.data_lightgrid = out;
5394 loadmodel->brushq3.num_lightgrid = count;
5395 // no swapping or validation necessary
5396 memcpy(out, in, count * (int)sizeof(*out));
5400 static void Mod_Q3BSP_LoadPVS(lump_t *l)
5405 if (l->filelen == 0)
5408 // unvised maps often have cluster indices even without pvs, so check
5409 // leafs to find real number of clusters
5410 loadmodel->brush.num_pvsclusters = 1;
5411 for (i = 0;i < loadmodel->brush.num_leafs;i++)
5412 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
5415 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
5416 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5417 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5418 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
5422 in = (q3dpvs_t *)(mod_base + l->fileofs);
5424 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
5426 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
5427 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
5428 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
5429 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
5430 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5431 if (l->filelen < totalchains + (int)sizeof(*in))
5432 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);
5434 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5435 memcpy(loadmodel->brush.data_pvsclusters, (unsigned char *)(in + 1), totalchains);
5438 static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
5440 int i, j, k, index[3];
5441 float transformed[3], blend1, blend2, blend, yaw, pitch, sinpitch, stylescale;
5442 q3dlightgrid_t *a, *s;
5444 // scale lighting by lightstyle[0] so that darkmode in dpmod works properly
5445 stylescale = r_refdef.lightstylevalue[0] * (1.0f / 264.0f);
5447 if (!model->brushq3.num_lightgrid)
5449 ambientcolor[0] = stylescale;
5450 ambientcolor[1] = stylescale;
5451 ambientcolor[2] = stylescale;
5455 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
5456 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
5457 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
5458 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
5459 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
5460 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
5461 index[0] = (int)floor(transformed[0]);
5462 index[1] = (int)floor(transformed[1]);
5463 index[2] = (int)floor(transformed[2]);
5464 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
5466 // now lerp the values
5467 VectorClear(diffusenormal);
5468 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
5469 for (k = 0;k < 2;k++)
5471 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
5472 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
5474 for (j = 0;j < 2;j++)
5476 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
5477 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
5479 for (i = 0;i < 2;i++)
5481 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0]))) * stylescale;
5482 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
5484 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
5485 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
5486 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
5487 pitch = s->diffusepitch * M_PI / 128;
5488 yaw = s->diffuseyaw * M_PI / 128;
5489 sinpitch = sin(pitch);
5490 diffusenormal[0] += blend * (cos(yaw) * sinpitch);
5491 diffusenormal[1] += blend * (sin(yaw) * sinpitch);
5492 diffusenormal[2] += blend * (cos(pitch));
5493 //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)));
5498 // normalize the light direction before turning
5499 VectorNormalize(diffusenormal);
5500 //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]);
5503 static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t point, int markframe)
5508 // find which leaf the point is in
5510 node = node->children[DotProduct(point, node->plane->normal) < node->plane->dist];
5511 // point trace the brushes
5512 leaf = (mleaf_t *)node;
5513 for (i = 0;i < leaf->numleafbrushes;i++)
5515 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5516 if (brush && brush->markframe != markframe && BoxesOverlap(point, point, brush->mins, brush->maxs))
5518 brush->markframe = markframe;
5519 Collision_TracePointBrushFloat(trace, point, brush);
5522 // can't do point traces on curves (they have no thickness)
5525 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)
5527 int i, startside, endside;
5528 float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
5530 msurface_t *surface;
5533 // walk the tree until we hit a leaf, recursing for any split cases
5536 // abort if this part of the bsp tree can not be hit by this trace
5537 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5539 plane = node->plane;
5540 // axial planes are much more common than non-axial, so an optimized
5541 // axial case pays off here
5542 if (plane->type < 3)
5544 dist1 = start[plane->type] - plane->dist;
5545 dist2 = end[plane->type] - plane->dist;
5549 dist1 = DotProduct(start, plane->normal) - plane->dist;
5550 dist2 = DotProduct(end, plane->normal) - plane->dist;
5552 startside = dist1 < 0;
5553 endside = dist2 < 0;
5554 if (startside == endside)
5556 // most of the time the line fragment is on one side of the plane
5557 node = node->children[startside];
5561 // line crosses node plane, split the line
5562 dist1 = PlaneDiff(linestart, plane);
5563 dist2 = PlaneDiff(lineend, plane);
5564 midfrac = dist1 / (dist1 - dist2);
5565 VectorLerp(linestart, midfrac, lineend, mid);
5566 // take the near side first
5567 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5568 // if we found an impact on the front side, don't waste time
5569 // exploring the far side
5570 if (midfrac <= trace->realfraction)
5571 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5575 // abort if this part of the bsp tree can not be hit by this trace
5576 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5579 nodesegmentmins[0] = min(start[0], end[0]) - 1;
5580 nodesegmentmins[1] = min(start[1], end[1]) - 1;
5581 nodesegmentmins[2] = min(start[2], end[2]) - 1;
5582 nodesegmentmaxs[0] = max(start[0], end[0]) + 1;
5583 nodesegmentmaxs[1] = max(start[1], end[1]) + 1;
5584 nodesegmentmaxs[2] = max(start[2], end[2]) + 1;
5585 // line trace the brushes
5586 leaf = (mleaf_t *)node;
5587 for (i = 0;i < leaf->numleafbrushes;i++)
5589 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5590 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5592 brush->markframe = markframe;
5593 Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
5596 // can't do point traces on curves (they have no thickness)
5597 if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
5599 // line trace the curves
5600 for (i = 0;i < leaf->numleafsurfaces;i++)
5602 surface = model->data_surfaces + leaf->firstleafsurface[i];
5603 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5605 surface->collisionmarkframe = markframe;
5606 Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5612 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)
5618 msurface_t *surface;
5620 float nodesegmentmins[3], nodesegmentmaxs[3];
5621 // walk the tree until we hit a leaf, recursing for any split cases
5624 // abort if this part of the bsp tree can not be hit by this trace
5625 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5627 plane = node->plane;
5628 // axial planes are much more common than non-axial, so an optimized
5629 // axial case pays off here
5630 if (plane->type < 3)
5632 // this is an axial plane, compare bounding box directly to it and
5633 // recurse sides accordingly
5634 // recurse down node sides
5635 // use an inlined axial BoxOnPlaneSide to slightly reduce overhead
5636 //sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, plane);
5637 //sides = ((segmentmaxs[plane->type] >= plane->dist) | ((segmentmins[plane->type] < plane->dist) << 1));
5638 sides = ((segmentmaxs[plane->type] >= plane->dist) + ((segmentmins[plane->type] < plane->dist) * 2));
5642 // this is a non-axial plane, so check if the start and end boxes
5643 // are both on one side of the plane to handle 'diagonal' cases
5644 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, plane);
5648 // segment crosses plane
5649 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5652 // if sides == 0 then the trace itself is bogus (Not A Number values),
5653 // in this case we simply pretend the trace hit nothing
5655 return; // ERROR: NAN bounding box!
5656 // take whichever side the segment box is on
5657 node = node->children[sides - 1];
5659 // abort if this part of the bsp tree can not be hit by this trace
5660 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5662 nodesegmentmins[0] = max(segmentmins[0], node->mins[0] - 1);
5663 nodesegmentmins[1] = max(segmentmins[1], node->mins[1] - 1);
5664 nodesegmentmins[2] = max(segmentmins[2], node->mins[2] - 1);
5665 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0] + 1);
5666 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1] + 1);
5667 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2] + 1);
5669 leaf = (mleaf_t *)node;
5670 for (i = 0;i < leaf->numleafbrushes;i++)
5672 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5673 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5675 brush->markframe = markframe;
5676 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
5679 if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer)
5681 for (i = 0;i < leaf->numleafsurfaces;i++)
5683 surface = model->data_surfaces + leaf->firstleafsurface[i];
5684 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5686 surface->collisionmarkframe = markframe;
5687 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);
5693 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)
5696 float segmentmins[3], segmentmaxs[3];
5697 static int markframe = 0;
5698 msurface_t *surface;
5700 memset(trace, 0, sizeof(*trace));
5701 trace->fraction = 1;
5702 trace->realfraction = 1;
5703 trace->hitsupercontentsmask = hitsupercontentsmask;
5704 if (mod_q3bsp_optimizedtraceline.integer && VectorLength2(boxmins) + VectorLength2(boxmaxs) == 0)
5706 if (VectorCompare(start, end))
5709 if (model->brush.submodel)
5711 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5712 if (brush->colbrushf)
5713 Collision_TracePointBrushFloat(trace, start, brush->colbrushf);
5716 Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, ++markframe);
5721 segmentmins[0] = min(start[0], end[0]) - 1;
5722 segmentmins[1] = min(start[1], end[1]) - 1;
5723 segmentmins[2] = min(start[2], end[2]) - 1;
5724 segmentmaxs[0] = max(start[0], end[0]) + 1;
5725 segmentmaxs[1] = max(start[1], end[1]) + 1;
5726 segmentmaxs[2] = max(start[2], end[2]) + 1;
5727 if (model->brush.submodel)
5729 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5730 if (brush->colbrushf)
5731 Collision_TraceLineBrushFloat(trace, start, end, brush->colbrushf, brush->colbrushf);
5732 if (mod_q3bsp_curves_collisions.integer)
5733 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5734 if (surface->num_collisiontriangles)
5735 Collision_TraceLineTriangleMeshFloat(trace, start, end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5738 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, end, 0, 1, start, end, ++markframe, segmentmins, segmentmaxs);
5743 // box trace, performed as brush trace
5744 colbrushf_t *thisbrush_start, *thisbrush_end;
5745 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
5746 segmentmins[0] = min(start[0], end[0]) + boxmins[0] - 1;
5747 segmentmins[1] = min(start[1], end[1]) + boxmins[1] - 1;
5748 segmentmins[2] = min(start[2], end[2]) + boxmins[2] - 1;
5749 segmentmaxs[0] = max(start[0], end[0]) + boxmaxs[0] + 1;
5750 segmentmaxs[1] = max(start[1], end[1]) + boxmaxs[1] + 1;
5751 segmentmaxs[2] = max(start[2], end[2]) + boxmaxs[2] + 1;
5752 VectorAdd(start, boxmins, boxstartmins);
5753 VectorAdd(start, boxmaxs, boxstartmaxs);
5754 VectorAdd(end, boxmins, boxendmins);
5755 VectorAdd(end, boxmaxs, boxendmaxs);
5756 thisbrush_start = Collision_BrushForBox(&identitymatrix, boxstartmins, boxstartmaxs, 0, 0, NULL);
5757 thisbrush_end = Collision_BrushForBox(&identitymatrix, boxendmins, boxendmaxs, 0, 0, NULL);
5758 if (model->brush.submodel)
5760 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5761 if (brush->colbrushf)
5762 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush->colbrushf, brush->colbrushf);
5763 if (mod_q3bsp_curves_collisions.integer)
5764 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5765 if (surface->num_collisiontriangles)
5766 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);
5769 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, model->brush.data_nodes, thisbrush_start, thisbrush_end, ++markframe, segmentmins, segmentmaxs);
5773 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
5775 int supercontents = 0;
5776 if (nativecontents & CONTENTSQ3_SOLID)
5777 supercontents |= SUPERCONTENTS_SOLID;
5778 if (nativecontents & CONTENTSQ3_WATER)
5779 supercontents |= SUPERCONTENTS_WATER;
5780 if (nativecontents & CONTENTSQ3_SLIME)
5781 supercontents |= SUPERCONTENTS_SLIME;
5782 if (nativecontents & CONTENTSQ3_LAVA)
5783 supercontents |= SUPERCONTENTS_LAVA;
5784 if (nativecontents & CONTENTSQ3_BODY)
5785 supercontents |= SUPERCONTENTS_BODY;
5786 if (nativecontents & CONTENTSQ3_CORPSE)
5787 supercontents |= SUPERCONTENTS_CORPSE;
5788 if (nativecontents & CONTENTSQ3_NODROP)
5789 supercontents |= SUPERCONTENTS_NODROP;
5790 if (nativecontents & CONTENTSQ3_PLAYERCLIP)
5791 supercontents |= SUPERCONTENTS_PLAYERCLIP;
5792 if (nativecontents & CONTENTSQ3_MONSTERCLIP)
5793 supercontents |= SUPERCONTENTS_MONSTERCLIP;
5794 if (nativecontents & CONTENTSQ3_DONOTENTER)
5795 supercontents |= SUPERCONTENTS_DONOTENTER;
5796 return supercontents;
5799 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
5801 int nativecontents = 0;
5802 if (supercontents & SUPERCONTENTS_SOLID)
5803 nativecontents |= CONTENTSQ3_SOLID;
5804 if (supercontents & SUPERCONTENTS_WATER)
5805 nativecontents |= CONTENTSQ3_WATER;
5806 if (supercontents & SUPERCONTENTS_SLIME)
5807 nativecontents |= CONTENTSQ3_SLIME;
5808 if (supercontents & SUPERCONTENTS_LAVA)
5809 nativecontents |= CONTENTSQ3_LAVA;
5810 if (supercontents & SUPERCONTENTS_BODY)
5811 nativecontents |= CONTENTSQ3_BODY;
5812 if (supercontents & SUPERCONTENTS_CORPSE)
5813 nativecontents |= CONTENTSQ3_CORPSE;
5814 if (supercontents & SUPERCONTENTS_NODROP)
5815 nativecontents |= CONTENTSQ3_NODROP;
5816 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
5817 nativecontents |= CONTENTSQ3_PLAYERCLIP;
5818 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
5819 nativecontents |= CONTENTSQ3_MONSTERCLIP;
5820 if (supercontents & SUPERCONTENTS_DONOTENTER)
5821 nativecontents |= CONTENTSQ3_DONOTENTER;
5822 return nativecontents;
5825 void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
5830 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
5831 node = node->children[1];
5833 numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
5834 if (loadmodel->brush.num_leafs < numleafs)
5835 loadmodel->brush.num_leafs = numleafs;
5838 void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
5840 int i, j, numshadowmeshtriangles;
5841 q3dheader_t *header;
5842 float corner[3], yawradius, modelradius;
5843 msurface_t *surface;
5845 mod->type = mod_brushq3;
5846 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
5849 header = (q3dheader_t *)buffer;
5851 i = LittleLong(header->version);
5852 if (i != Q3BSPVERSION)
5853 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
5854 mod->brush.ishlbsp = false;
5855 mod->brush.ismcbsp = false;
5856 if (loadmodel->isworldmodel)
5858 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
5859 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
5862 mod->soundfromcenter = true;
5863 mod->TraceBox = Mod_Q3BSP_TraceBox;
5864 mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
5865 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
5866 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
5867 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
5868 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
5869 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
5870 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
5871 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
5872 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
5873 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
5874 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5875 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
5876 mod->Draw = R_Q1BSP_Draw;
5877 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
5878 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
5879 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
5880 mod->DrawLight = R_Q1BSP_DrawLight;
5882 mod_base = (unsigned char *)header;
5884 // swap all the lumps
5885 header->ident = LittleLong(header->ident);
5886 header->version = LittleLong(header->version);
5887 for (i = 0;i < Q3HEADER_LUMPS;i++)
5889 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
5890 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
5893 mod->brush.qw_md4sum = 0;
5894 mod->brush.qw_md4sum2 = 0;
5895 for (i = 0;i < Q3HEADER_LUMPS;i++)
5897 if (i == Q3LUMP_ENTITIES)
5899 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
5900 if (i == Q3LUMP_PVS || i == Q3LUMP_LEAFS || i == Q3LUMP_NODES)
5902 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
5905 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
5906 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
5907 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
5908 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
5909 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
5910 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
5911 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
5912 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
5913 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS]);
5914 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
5915 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
5916 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
5917 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
5918 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
5919 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
5920 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
5921 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
5922 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
5924 // the MakePortals code works fine on the q3bsp data as well
5925 Mod_Q1BSP_MakePortals();
5927 // FIXME: shader alpha should replace r_wateralpha support in q3bsp
5928 loadmodel->brush.supportwateralpha = true;
5930 // make a single combined shadow mesh to allow optimized shadow volume creation
5931 numshadowmeshtriangles = 0;
5932 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5934 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
5935 numshadowmeshtriangles += surface->num_triangles;
5937 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
5938 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5939 if (surface->num_triangles > 0)
5940 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));
5941 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
5942 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
5944 loadmodel->brush.num_leafs = 0;
5945 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
5947 if (loadmodel->isworldmodel)
5949 // clear out any stale submodels or worldmodels lying around
5950 // if we did this clear before now, an error might abort loading and
5951 // leave things in a bad state
5952 Mod_RemoveStaleWorldModels(loadmodel);
5956 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
5961 // LordHavoc: only register submodels if it is the world
5962 // (prevents external bsp models from replacing world submodels with
5964 if (!loadmodel->isworldmodel)
5966 // duplicate the basic information
5967 sprintf(name, "*%i", i);
5968 mod = Mod_FindName(name);
5970 strlcpy(mod->name, name, sizeof(mod->name));
5971 // textures and memory belong to the main model
5972 mod->texturepool = NULL;
5973 mod->mempool = NULL;
5974 mod->brush.TraceLineOfSight = NULL;
5975 mod->brush.GetPVS = NULL;
5976 mod->brush.FatPVS = NULL;
5977 mod->brush.BoxTouchingPVS = NULL;
5978 mod->brush.BoxTouchingLeafPVS = NULL;
5979 mod->brush.BoxTouchingVisibleLeafs = NULL;
5980 mod->brush.FindBoxClusters = NULL;
5981 mod->brush.LightPoint = NULL;
5982 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5984 mod->brush.submodel = i;
5986 // make the model surface list (used by shadowing/lighting)
5987 mod->firstmodelsurface = mod->brushq3.data_models[i].firstface;
5988 mod->nummodelsurfaces = mod->brushq3.data_models[i].numfaces;
5989 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
5990 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
5991 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
5992 for (j = 0;j < mod->nummodelsurfaces;j++)
5993 mod->surfacelist[j] = mod->firstmodelsurface + j;
5995 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
5996 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
5997 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
5998 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
5999 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
6000 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
6001 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
6002 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
6003 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
6004 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
6005 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
6006 mod->yawmins[2] = mod->normalmins[2];
6007 mod->yawmaxs[2] = mod->normalmaxs[2];
6008 mod->radius = modelradius;
6009 mod->radius2 = modelradius * modelradius;
6011 for (j = 0;j < mod->nummodelsurfaces;j++)
6012 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->surfaceflags & Q3SURFACEFLAG_SKY)
6014 if (j < mod->nummodelsurfaces)
6015 mod->DrawSky = R_Q1BSP_DrawSky;
6017 mod->DrawSky = NULL;
6021 void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
6023 int i = LittleLong(((int *)buffer)[1]);
6024 if (i == Q3BSPVERSION)
6025 Mod_Q3BSP_Load(mod,buffer, bufferend);
6026 else if (i == Q2BSPVERSION)
6027 Mod_Q2BSP_Load(mod,buffer, bufferend);
6029 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i", i);
6032 void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend)
6034 Host_Error("Mod_MAP_Load: not yet implemented");