2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
29 //cvar_t r_subdivide_size = {CVAR_SAVE, "r_subdivide_size", "128", "how large water polygons should be (smaller values produce more polygons which give better warping effects)"};
30 cvar_t halflifebsp = {0, "halflifebsp", "0", "indicates the current map is hlbsp format (useful to know because of different bounding box sizes)"};
31 cvar_t mcbsp = {0, "mcbsp", "0", "indicates the current map is mcbsp format (useful to know because of different bounding box sizes)"};
32 cvar_t r_novis = {0, "r_novis", "0", "draws whole level, see also sv_cullentities_pvs 0"};
33 cvar_t r_lightmaprgba = {0, "r_lightmaprgba", "1", "whether to use RGBA (32bit) or RGB (24bit) lightmaps"};
34 cvar_t r_nosurftextures = {0, "r_nosurftextures", "0", "pretends there was no texture lump found in the q1bsp/hlbsp loading (useful for debugging this rare case)"};
35 cvar_t r_subdivisions_tolerance = {0, "r_subdivisions_tolerance", "4", "maximum error tolerance on curve subdivision for rendering purposes (in other words, the curves will be given as many polygons as necessary to represent curves at this quality)"};
36 cvar_t r_subdivisions_mintess = {0, "r_subdivisions_mintess", "1", "minimum number of subdivisions (values above 1 will smooth curves that don't need it)"};
37 cvar_t r_subdivisions_maxtess = {0, "r_subdivisions_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
38 cvar_t r_subdivisions_maxvertices = {0, "r_subdivisions_maxvertices", "65536", "maximum vertices allowed per subdivided curve"};
39 cvar_t r_subdivisions_collision_tolerance = {0, "r_subdivisions_collision_tolerance", "15", "maximum error tolerance on curve subdivision for collision purposes (usually a larger error tolerance than for rendering)"};
40 cvar_t r_subdivisions_collision_mintess = {0, "r_subdivisions_collision_mintess", "1", "minimum number of subdivisions (values above 1 will smooth curves that don't need it)"};
41 cvar_t r_subdivisions_collision_maxtess = {0, "r_subdivisions_collision_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
42 cvar_t r_subdivisions_collision_maxvertices = {0, "r_subdivisions_collision_maxvertices", "4225", "maximum vertices allowed per subdivided curve"};
43 cvar_t mod_q3bsp_curves_collisions = {0, "mod_q3bsp_curves_collisions", "1", "enables collisions with curves (SLOW)"};
44 cvar_t mod_q3bsp_optimizedtraceline = {0, "mod_q3bsp_optimizedtraceline", "1", "whether to use optimized traceline code for line traces (as opposed to tracebox code)"};
45 cvar_t mod_q3bsp_debugtracebrush = {0, "mod_q3bsp_debugtracebrush", "0", "selects different tracebrush bsp recursion algorithms (for debugging purposes only)"};
47 static texture_t mod_q1bsp_texture_solid;
48 static texture_t mod_q1bsp_texture_sky;
49 static texture_t mod_q1bsp_texture_lava;
50 static texture_t mod_q1bsp_texture_slime;
51 static texture_t mod_q1bsp_texture_water;
53 void Mod_BrushInit(void)
55 // Cvar_RegisterVariable(&r_subdivide_size);
56 Cvar_RegisterVariable(&halflifebsp);
57 Cvar_RegisterVariable(&mcbsp);
58 Cvar_RegisterVariable(&r_novis);
59 Cvar_RegisterVariable(&r_lightmaprgba);
60 Cvar_RegisterVariable(&r_nosurftextures);
61 Cvar_RegisterVariable(&r_subdivisions_tolerance);
62 Cvar_RegisterVariable(&r_subdivisions_mintess);
63 Cvar_RegisterVariable(&r_subdivisions_maxtess);
64 Cvar_RegisterVariable(&r_subdivisions_maxvertices);
65 Cvar_RegisterVariable(&r_subdivisions_collision_tolerance);
66 Cvar_RegisterVariable(&r_subdivisions_collision_mintess);
67 Cvar_RegisterVariable(&r_subdivisions_collision_maxtess);
68 Cvar_RegisterVariable(&r_subdivisions_collision_maxvertices);
69 Cvar_RegisterVariable(&mod_q3bsp_curves_collisions);
70 Cvar_RegisterVariable(&mod_q3bsp_optimizedtraceline);
71 Cvar_RegisterVariable(&mod_q3bsp_debugtracebrush);
73 memset(&mod_q1bsp_texture_solid, 0, sizeof(mod_q1bsp_texture_solid));
74 strlcpy(mod_q1bsp_texture_solid.name, "solid" , sizeof(mod_q1bsp_texture_solid.name));
75 mod_q1bsp_texture_solid.surfaceflags = 0;
76 mod_q1bsp_texture_solid.supercontents = SUPERCONTENTS_SOLID;
78 mod_q1bsp_texture_sky = mod_q1bsp_texture_solid;
79 strlcpy(mod_q1bsp_texture_sky.name, "sky", sizeof(mod_q1bsp_texture_sky.name));
80 mod_q1bsp_texture_sky.surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
81 mod_q1bsp_texture_sky.supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
83 mod_q1bsp_texture_lava = mod_q1bsp_texture_solid;
84 strlcpy(mod_q1bsp_texture_lava.name, "*lava", sizeof(mod_q1bsp_texture_lava.name));
85 mod_q1bsp_texture_lava.surfaceflags = Q3SURFACEFLAG_NOMARKS;
86 mod_q1bsp_texture_lava.supercontents = SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
88 mod_q1bsp_texture_slime = mod_q1bsp_texture_solid;
89 strlcpy(mod_q1bsp_texture_slime.name, "*slime", sizeof(mod_q1bsp_texture_slime.name));
90 mod_q1bsp_texture_slime.surfaceflags = Q3SURFACEFLAG_NOMARKS;
91 mod_q1bsp_texture_slime.supercontents = SUPERCONTENTS_SLIME;
93 mod_q1bsp_texture_water = mod_q1bsp_texture_solid;
94 strlcpy(mod_q1bsp_texture_water.name, "*water", sizeof(mod_q1bsp_texture_water.name));
95 mod_q1bsp_texture_water.surfaceflags = Q3SURFACEFLAG_NOMARKS;
96 mod_q1bsp_texture_water.supercontents = SUPERCONTENTS_WATER;
99 static mleaf_t *Mod_Q1BSP_PointInLeaf(model_t *model, const vec3_t p)
106 // LordHavoc: modified to start at first clip node,
107 // in other words: first node of the (sub)model
108 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
110 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
112 return (mleaf_t *)node;
115 static void Mod_Q1BSP_AmbientSoundLevelsForPoint(model_t *model, const vec3_t p, unsigned char *out, int outsize)
119 leaf = Mod_Q1BSP_PointInLeaf(model, p);
122 i = min(outsize, (int)sizeof(leaf->ambient_sound_level));
125 memcpy(out, leaf->ambient_sound_level, i);
131 memset(out, 0, outsize);
134 static int Mod_Q1BSP_FindBoxClusters(model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
137 int nodestackindex = 0;
138 mnode_t *node, *nodestack[1024];
139 if (!model->brush.num_pvsclusters)
141 node = model->brush.data_nodes;
147 // node - recurse down the BSP tree
148 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
152 return -1; // ERROR: NAN bounding box!
153 // box is on one side of plane, take that path
154 node = node->children[sides-1];
158 // box crosses plane, take one path and remember the other
159 if (nodestackindex < 1024)
160 nodestack[nodestackindex++] = node->children[0];
161 node = node->children[1];
167 // leaf - add clusterindex to list
168 if (numclusters < maxclusters)
169 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
173 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
177 if (nodestackindex < 1024)
178 nodestack[nodestackindex++] = node->children[0];
179 node = node->children[1];
184 // leaf - add clusterindex to list
185 if (numclusters < maxclusters)
186 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
191 // try another path we didn't take earlier
192 if (nodestackindex == 0)
194 node = nodestack[--nodestackindex];
196 // return number of clusters found (even if more than the maxclusters)
200 static int Mod_Q1BSP_BoxTouchingPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
202 int nodestackindex = 0;
203 mnode_t *node, *nodestack[1024];
204 if (!model->brush.num_pvsclusters)
206 node = model->brush.data_nodes;
212 // node - recurse down the BSP tree
213 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
217 return -1; // ERROR: NAN bounding box!
218 // box is on one side of plane, take that path
219 node = node->children[sides-1];
223 // box crosses plane, take one path and remember the other
224 if (nodestackindex < 1024)
225 nodestack[nodestackindex++] = node->children[0];
226 node = node->children[1];
232 // leaf - check cluster bit
233 int clusterindex = ((mleaf_t *)node)->clusterindex;
234 if (CHECKPVSBIT(pvs, clusterindex))
236 // it is visible, return immediately with the news
241 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
245 if (nodestackindex < 1024)
246 nodestack[nodestackindex++] = node->children[0];
247 node = node->children[1];
252 // leaf - check cluster bit
253 int clusterindex = ((mleaf_t *)node)->clusterindex;
254 if (CHECKPVSBIT(pvs, clusterindex))
256 // it is visible, return immediately with the news
262 // nothing to see here, try another path we didn't take earlier
263 if (nodestackindex == 0)
265 node = nodestack[--nodestackindex];
271 static int Mod_Q1BSP_BoxTouchingLeafPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
273 int nodestackindex = 0;
274 mnode_t *node, *nodestack[1024];
275 if (!model->brush.num_leafs)
277 node = model->brush.data_nodes;
283 // node - recurse down the BSP tree
284 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
288 return -1; // ERROR: NAN bounding box!
289 // box is on one side of plane, take that path
290 node = node->children[sides-1];
294 // box crosses plane, take one path and remember the other
295 if (nodestackindex < 1024)
296 nodestack[nodestackindex++] = node->children[0];
297 node = node->children[1];
303 // leaf - check cluster bit
304 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
305 if (CHECKPVSBIT(pvs, clusterindex))
307 // it is visible, return immediately with the news
312 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
316 if (nodestackindex < 1024)
317 nodestack[nodestackindex++] = node->children[0];
318 node = node->children[1];
323 // leaf - check cluster bit
324 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
325 if (CHECKPVSBIT(pvs, clusterindex))
327 // it is visible, return immediately with the news
333 // nothing to see here, try another path we didn't take earlier
334 if (nodestackindex == 0)
336 node = nodestack[--nodestackindex];
342 static int Mod_Q1BSP_BoxTouchingVisibleLeafs(model_t *model, const unsigned char *visibleleafs, const vec3_t mins, const vec3_t maxs)
344 int nodestackindex = 0;
345 mnode_t *node, *nodestack[1024];
346 if (!model->brush.num_leafs)
348 node = model->brush.data_nodes;
354 // node - recurse down the BSP tree
355 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
359 return -1; // ERROR: NAN bounding box!
360 // box is on one side of plane, take that path
361 node = node->children[sides-1];
365 // box crosses plane, take one path and remember the other
366 if (nodestackindex < 1024)
367 nodestack[nodestackindex++] = node->children[0];
368 node = node->children[1];
374 // leaf - check if it is visible
375 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
377 // it is visible, return immediately with the news
382 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
386 if (nodestackindex < 1024)
387 nodestack[nodestackindex++] = node->children[0];
388 node = node->children[1];
393 // leaf - check if it is visible
394 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
396 // it is visible, return immediately with the news
402 // nothing to see here, try another path we didn't take earlier
403 if (nodestackindex == 0)
405 node = nodestack[--nodestackindex];
411 typedef struct findnonsolidlocationinfo_s
419 findnonsolidlocationinfo_t;
421 static void Mod_Q1BSP_FindNonSolidLocation_r_Leaf(findnonsolidlocationinfo_t *info, mleaf_t *leaf)
423 int i, surfacenum, k, *tri, *mark;
424 float dist, f, vert[3][3], edge[3][3], facenormal[3], edgenormal[3][3], point[3];
426 for (surfacenum = 0, mark = leaf->firstleafsurface;surfacenum < leaf->numleafsurfaces;surfacenum++, mark++)
428 surface = info->model->data_surfaces + *mark;
429 if (surface->texture->supercontents & SUPERCONTENTS_SOLID)
431 for (k = 0;k < surface->num_triangles;k++)
433 tri = (info->model->surfmesh.data_element3i + 3 * surface->num_firsttriangle) + k * 3;
434 VectorCopy((info->model->surfmesh.data_vertex3f + tri[0] * 3), vert[0]);
435 VectorCopy((info->model->surfmesh.data_vertex3f + tri[1] * 3), vert[1]);
436 VectorCopy((info->model->surfmesh.data_vertex3f + tri[2] * 3), vert[2]);
437 VectorSubtract(vert[1], vert[0], edge[0]);
438 VectorSubtract(vert[2], vert[1], edge[1]);
439 CrossProduct(edge[1], edge[0], facenormal);
440 if (facenormal[0] || facenormal[1] || facenormal[2])
442 VectorNormalize(facenormal);
443 f = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
444 if (f <= info->bestdist && f >= -info->bestdist)
446 VectorSubtract(vert[0], vert[2], edge[2]);
447 VectorNormalize(edge[0]);
448 VectorNormalize(edge[1]);
449 VectorNormalize(edge[2]);
450 CrossProduct(facenormal, edge[0], edgenormal[0]);
451 CrossProduct(facenormal, edge[1], edgenormal[1]);
452 CrossProduct(facenormal, edge[2], edgenormal[2]);
454 if (DotProduct(info->center, edgenormal[0]) < DotProduct(vert[0], edgenormal[0])
455 && DotProduct(info->center, edgenormal[1]) < DotProduct(vert[1], edgenormal[1])
456 && DotProduct(info->center, edgenormal[2]) < DotProduct(vert[2], edgenormal[2]))
458 // we got lucky, the center is within the face
459 dist = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
463 if (info->bestdist > dist)
465 info->bestdist = dist;
466 VectorScale(facenormal, (info->radius - -dist), info->nudge);
471 if (info->bestdist > dist)
473 info->bestdist = dist;
474 VectorScale(facenormal, (info->radius - dist), info->nudge);
480 // check which edge or vertex the center is nearest
481 for (i = 0;i < 3;i++)
483 f = DotProduct(info->center, edge[i]);
484 if (f >= DotProduct(vert[0], edge[i])
485 && f <= DotProduct(vert[1], edge[i]))
488 VectorMA(info->center, -f, edge[i], point);
489 dist = sqrt(DotProduct(point, point));
490 if (info->bestdist > dist)
492 info->bestdist = dist;
493 VectorScale(point, (info->radius / dist), info->nudge);
495 // skip both vertex checks
496 // (both are further away than this edge)
501 // not on edge, check first vertex of edge
502 VectorSubtract(info->center, vert[i], point);
503 dist = sqrt(DotProduct(point, point));
504 if (info->bestdist > dist)
506 info->bestdist = dist;
507 VectorScale(point, (info->radius / dist), info->nudge);
519 static void Mod_Q1BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, mnode_t *node)
523 float f = PlaneDiff(info->center, node->plane);
524 if (f >= -info->bestdist)
525 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[0]);
526 if (f <= info->bestdist)
527 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[1]);
531 if (((mleaf_t *)node)->numleafsurfaces)
532 Mod_Q1BSP_FindNonSolidLocation_r_Leaf(info, (mleaf_t *)node);
536 static void Mod_Q1BSP_FindNonSolidLocation(model_t *model, const vec3_t in, vec3_t out, float radius)
539 findnonsolidlocationinfo_t info;
545 VectorCopy(in, info.center);
546 info.radius = radius;
551 VectorClear(info.nudge);
552 info.bestdist = radius;
553 Mod_Q1BSP_FindNonSolidLocation_r(&info, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
554 VectorAdd(info.center, info.nudge, info.center);
556 while (info.bestdist < radius && ++i < 10);
557 VectorCopy(info.center, out);
560 int Mod_Q1BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
562 switch(nativecontents)
567 return SUPERCONTENTS_SOLID;
569 return SUPERCONTENTS_WATER;
571 return SUPERCONTENTS_SLIME;
573 return SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
575 return SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
580 int Mod_Q1BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
582 if (supercontents & (SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY))
583 return CONTENTS_SOLID;
584 if (supercontents & SUPERCONTENTS_SKY)
586 if (supercontents & SUPERCONTENTS_LAVA)
587 return CONTENTS_LAVA;
588 if (supercontents & SUPERCONTENTS_SLIME)
589 return CONTENTS_SLIME;
590 if (supercontents & SUPERCONTENTS_WATER)
591 return CONTENTS_WATER;
592 return CONTENTS_EMPTY;
595 typedef struct RecursiveHullCheckTraceInfo_s
597 // the hull we're tracing through
600 // the trace structure to fill in
603 // start, end, and end - start (in model space)
608 RecursiveHullCheckTraceInfo_t;
610 // 1/32 epsilon to keep floating point happy
611 #define DIST_EPSILON (0.03125)
613 #define HULLCHECKSTATE_EMPTY 0
614 #define HULLCHECKSTATE_SOLID 1
615 #define HULLCHECKSTATE_DONE 2
617 extern cvar_t collision_prefernudgedfraction;
618 static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int num, double p1f, double p2f, double p1[3], double p2[3])
620 // status variables, these don't need to be saved on the stack when
621 // recursing... but are because this should be thread-safe
622 // (note: tracing against a bbox is not thread-safe, yet)
627 // variables that need to be stored on the stack when recursing
632 // LordHavoc: a goto! everyone flee in terror... :)
637 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
638 if (!t->trace->startfound)
640 t->trace->startfound = true;
641 t->trace->startsupercontents |= num;
643 if (num & SUPERCONTENTS_LIQUIDSMASK)
644 t->trace->inwater = true;
646 t->trace->inopen = true;
647 if (num & SUPERCONTENTS_SOLID)
648 t->trace->hittexture = &mod_q1bsp_texture_solid;
649 else if (num & SUPERCONTENTS_SKY)
650 t->trace->hittexture = &mod_q1bsp_texture_sky;
651 else if (num & SUPERCONTENTS_LAVA)
652 t->trace->hittexture = &mod_q1bsp_texture_lava;
653 else if (num & SUPERCONTENTS_SLIME)
654 t->trace->hittexture = &mod_q1bsp_texture_slime;
656 t->trace->hittexture = &mod_q1bsp_texture_water;
657 t->trace->hitq3surfaceflags = t->trace->hittexture->surfaceflags;
658 t->trace->hitsupercontents = num;
659 if (num & t->trace->hitsupercontentsmask)
661 // if the first leaf is solid, set startsolid
662 if (t->trace->allsolid)
663 t->trace->startsolid = true;
664 #if COLLISIONPARANOID >= 3
667 return HULLCHECKSTATE_SOLID;
671 t->trace->allsolid = false;
672 #if COLLISIONPARANOID >= 3
675 return HULLCHECKSTATE_EMPTY;
679 // find the point distances
680 node = t->hull->clipnodes + num;
682 plane = t->hull->planes + node->planenum;
685 t1 = p1[plane->type] - plane->dist;
686 t2 = p2[plane->type] - plane->dist;
690 t1 = DotProduct (plane->normal, p1) - plane->dist;
691 t2 = DotProduct (plane->normal, p2) - plane->dist;
698 #if COLLISIONPARANOID >= 3
701 num = node->children[1];
710 #if COLLISIONPARANOID >= 3
713 num = node->children[0];
719 // the line intersects, find intersection point
720 // LordHavoc: this uses the original trace for maximum accuracy
721 #if COLLISIONPARANOID >= 3
726 t1 = t->start[plane->type] - plane->dist;
727 t2 = t->end[plane->type] - plane->dist;
731 t1 = DotProduct (plane->normal, t->start) - plane->dist;
732 t2 = DotProduct (plane->normal, t->end) - plane->dist;
735 midf = t1 / (t1 - t2);
736 midf = bound(p1f, midf, p2f);
737 VectorMA(t->start, midf, t->dist, mid);
739 // recurse both sides, front side first
740 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side], p1f, midf, p1, mid);
741 // if this side is not empty, return what it is (solid or done)
742 if (ret != HULLCHECKSTATE_EMPTY)
745 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side ^ 1], midf, p2f, mid, p2);
746 // if other side is not solid, return what it is (empty or done)
747 if (ret != HULLCHECKSTATE_SOLID)
750 // front is air and back is solid, this is the impact point...
753 t->trace->plane.dist = -plane->dist;
754 VectorNegate (plane->normal, t->trace->plane.normal);
758 t->trace->plane.dist = plane->dist;
759 VectorCopy (plane->normal, t->trace->plane.normal);
762 // calculate the true fraction
763 t1 = DotProduct(t->trace->plane.normal, t->start) - t->trace->plane.dist;
764 t2 = DotProduct(t->trace->plane.normal, t->end) - t->trace->plane.dist;
765 midf = t1 / (t1 - t2);
766 t->trace->realfraction = bound(0, midf, 1);
768 // calculate the return fraction which is nudged off the surface a bit
769 midf = (t1 - DIST_EPSILON) / (t1 - t2);
770 t->trace->fraction = bound(0, midf, 1);
772 if (collision_prefernudgedfraction.integer)
773 t->trace->realfraction = t->trace->fraction;
775 #if COLLISIONPARANOID >= 3
778 return HULLCHECKSTATE_DONE;
781 //#if COLLISIONPARANOID < 2
782 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
785 num = t->hull->clipnodes[num].children[(t->hull->planes[t->hull->clipnodes[num].planenum].type < 3 ? t->start[t->hull->planes[t->hull->clipnodes[num].planenum].type] : DotProduct(t->hull->planes[t->hull->clipnodes[num].planenum].normal, t->start)) < t->hull->planes[t->hull->clipnodes[num].planenum].dist];
786 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
787 t->trace->startsupercontents |= num;
788 if (num & SUPERCONTENTS_LIQUIDSMASK)
789 t->trace->inwater = true;
791 t->trace->inopen = true;
792 if (num & t->trace->hitsupercontentsmask)
794 t->trace->allsolid = t->trace->startsolid = true;
795 return HULLCHECKSTATE_SOLID;
799 t->trace->allsolid = t->trace->startsolid = false;
800 return HULLCHECKSTATE_EMPTY;
805 static void Mod_Q1BSP_TraceBox(struct model_s *model, int frame, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
807 // this function currently only supports same size start and end
809 RecursiveHullCheckTraceInfo_t rhc;
811 memset(&rhc, 0, sizeof(rhc));
812 memset(trace, 0, sizeof(trace_t));
814 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
815 rhc.trace->fraction = 1;
816 rhc.trace->realfraction = 1;
817 rhc.trace->allsolid = true;
818 VectorSubtract(boxmaxs, boxmins, boxsize);
820 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
821 else if (model->brush.ismcbsp)
823 if (boxsize[2] < 48) // pick the nearest of 40 or 56
824 rhc.hull = &model->brushq1.hulls[2]; // 16x16x40
826 rhc.hull = &model->brushq1.hulls[1]; // 16x16x56
828 else if (model->brush.ishlbsp)
830 // LordHavoc: this has to have a minor tolerance (the .1) because of
831 // minor float precision errors from the box being transformed around
832 if (boxsize[0] < 32.1)
834 if (boxsize[2] < 54) // pick the nearest of 36 or 72
835 rhc.hull = &model->brushq1.hulls[3]; // 32x32x36
837 rhc.hull = &model->brushq1.hulls[1]; // 32x32x72
840 rhc.hull = &model->brushq1.hulls[2]; // 64x64x64
844 // LordHavoc: this has to have a minor tolerance (the .1) because of
845 // minor float precision errors from the box being transformed around
846 if (boxsize[0] < 32.1)
847 rhc.hull = &model->brushq1.hulls[1]; // 32x32x56
849 rhc.hull = &model->brushq1.hulls[2]; // 64x64x88
851 VectorMAMAM(1, start, 1, boxmins, -1, rhc.hull->clip_mins, rhc.start);
852 VectorMAMAM(1, end, 1, boxmins, -1, rhc.hull->clip_mins, rhc.end);
853 VectorSubtract(rhc.end, rhc.start, rhc.dist);
854 #if COLLISIONPARANOID >= 2
855 Con_Printf("t(%f %f %f,%f %f %f,%i %f %f %f)", rhc.start[0], rhc.start[1], rhc.start[2], rhc.end[0], rhc.end[1], rhc.end[2], rhc.hull - model->brushq1.hulls, rhc.hull->clip_mins[0], rhc.hull->clip_mins[1], rhc.hull->clip_mins[2]);
856 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
861 VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
862 memset(&testtrace, 0, sizeof(trace_t));
863 rhc.trace = &testtrace;
864 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
865 rhc.trace->fraction = 1;
866 rhc.trace->realfraction = 1;
867 rhc.trace->allsolid = true;
868 VectorCopy(test, rhc.start);
869 VectorCopy(test, rhc.end);
870 VectorClear(rhc.dist);
871 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
872 //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
873 if (!trace->startsolid && testtrace.startsolid)
874 Con_Printf(" - ended in solid!\n");
878 if (VectorLength2(rhc.dist))
879 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
881 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
885 void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, texture_t *boxtexture)
889 colplanef_t cbox_planes[6];
890 cbox.supercontents = boxsupercontents;
893 cbox.numtriangles = 0;
894 cbox.planes = cbox_planes;
896 cbox.elements = NULL;
904 cbox_planes[0].normal[0] = 1;cbox_planes[0].normal[1] = 0;cbox_planes[0].normal[2] = 0;cbox_planes[0].dist = cmaxs[0] - mins[0];
905 cbox_planes[1].normal[0] = -1;cbox_planes[1].normal[1] = 0;cbox_planes[1].normal[2] = 0;cbox_planes[1].dist = maxs[0] - cmins[0];
906 cbox_planes[2].normal[0] = 0;cbox_planes[2].normal[1] = 1;cbox_planes[2].normal[2] = 0;cbox_planes[2].dist = cmaxs[1] - mins[1];
907 cbox_planes[3].normal[0] = 0;cbox_planes[3].normal[1] = -1;cbox_planes[3].normal[2] = 0;cbox_planes[3].dist = maxs[1] - cmins[1];
908 cbox_planes[4].normal[0] = 0;cbox_planes[4].normal[1] = 0;cbox_planes[4].normal[2] = 1;cbox_planes[4].dist = cmaxs[2] - mins[2];
909 cbox_planes[5].normal[0] = 0;cbox_planes[5].normal[1] = 0;cbox_planes[5].normal[2] = -1;cbox_planes[5].dist = maxs[2] - cmins[2];
910 cbox_planes[0].q3surfaceflags = boxq3surfaceflags;cbox_planes[0].texture = boxtexture;
911 cbox_planes[1].q3surfaceflags = boxq3surfaceflags;cbox_planes[1].texture = boxtexture;
912 cbox_planes[2].q3surfaceflags = boxq3surfaceflags;cbox_planes[2].texture = boxtexture;
913 cbox_planes[3].q3surfaceflags = boxq3surfaceflags;cbox_planes[3].texture = boxtexture;
914 cbox_planes[4].q3surfaceflags = boxq3surfaceflags;cbox_planes[4].texture = boxtexture;
915 cbox_planes[5].q3surfaceflags = boxq3surfaceflags;cbox_planes[5].texture = boxtexture;
916 memset(trace, 0, sizeof(trace_t));
917 trace->hitsupercontentsmask = hitsupercontentsmask;
919 trace->realfraction = 1;
920 Collision_TraceLineBrushFloat(trace, start, end, &cbox, &cbox);
922 RecursiveHullCheckTraceInfo_t rhc;
923 static hull_t box_hull;
924 static dclipnode_t box_clipnodes[6];
925 static mplane_t box_planes[6];
926 // fill in a default trace
927 memset(&rhc, 0, sizeof(rhc));
928 memset(trace, 0, sizeof(trace_t));
929 //To keep everything totally uniform, bounding boxes are turned into small
930 //BSP trees instead of being compared directly.
931 // create a temp hull from bounding box sizes
932 box_planes[0].dist = cmaxs[0] - mins[0];
933 box_planes[1].dist = cmins[0] - maxs[0];
934 box_planes[2].dist = cmaxs[1] - mins[1];
935 box_planes[3].dist = cmins[1] - maxs[1];
936 box_planes[4].dist = cmaxs[2] - mins[2];
937 box_planes[5].dist = cmins[2] - maxs[2];
938 #if COLLISIONPARANOID >= 3
939 Con_Printf("box_planes %f:%f %f:%f %f:%f\ncbox %f %f %f:%f %f %f\nbox %f %f %f:%f %f %f\n", box_planes[0].dist, box_planes[1].dist, box_planes[2].dist, box_planes[3].dist, box_planes[4].dist, box_planes[5].dist, cmins[0], cmins[1], cmins[2], cmaxs[0], cmaxs[1], cmaxs[2], mins[0], mins[1], mins[2], maxs[0], maxs[1], maxs[2]);
942 if (box_hull.clipnodes == NULL)
946 //Set up the planes and clipnodes so that the six floats of a bounding box
947 //can just be stored out and get a proper hull_t structure.
949 box_hull.clipnodes = box_clipnodes;
950 box_hull.planes = box_planes;
951 box_hull.firstclipnode = 0;
952 box_hull.lastclipnode = 5;
954 for (i = 0;i < 6;i++)
956 box_clipnodes[i].planenum = i;
960 box_clipnodes[i].children[side] = CONTENTS_EMPTY;
962 box_clipnodes[i].children[side^1] = i + 1;
964 box_clipnodes[i].children[side^1] = CONTENTS_SOLID;
966 box_planes[i].type = i>>1;
967 box_planes[i].normal[i>>1] = 1;
971 // trace a line through the generated clipping hull
972 //rhc.boxsupercontents = boxsupercontents;
973 rhc.hull = &box_hull;
975 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
976 rhc.trace->fraction = 1;
977 rhc.trace->realfraction = 1;
978 rhc.trace->allsolid = true;
979 VectorCopy(start, rhc.start);
980 VectorCopy(end, rhc.end);
981 VectorSubtract(rhc.end, rhc.start, rhc.dist);
982 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
983 //VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
984 if (rhc.trace->startsupercontents)
985 rhc.trace->startsupercontents = boxsupercontents;
989 static int Mod_Q1BSP_LightPoint_RecursiveBSPNode(model_t *model, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const mnode_t *node, float x, float y, float startz, float endz)
993 float mid, distz = endz - startz;
997 return false; // didn't hit anything
999 switch (node->plane->type)
1002 node = node->children[x < node->plane->dist];
1005 node = node->children[y < node->plane->dist];
1008 side = startz < node->plane->dist;
1009 if ((endz < node->plane->dist) == side)
1011 node = node->children[side];
1014 // found an intersection
1015 mid = node->plane->dist;
1018 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
1019 front += startz * node->plane->normal[2];
1020 back += endz * node->plane->normal[2];
1021 side = front < node->plane->dist;
1022 if ((back < node->plane->dist) == side)
1024 node = node->children[side];
1027 // found an intersection
1028 mid = startz + distz * (front - node->plane->dist) / (front - back);
1032 // go down front side
1033 if (node->children[side]->plane && Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
1034 return true; // hit something
1037 // check for impact on this node
1038 if (node->numsurfaces)
1041 msurface_t *surface;
1043 surface = model->data_surfaces + node->firstsurface;
1044 for (i = 0;i < node->numsurfaces;i++, surface++)
1046 if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->lightmapinfo->samples)
1047 continue; // no lightmaps
1049 ds = (int) (x * surface->lightmapinfo->texinfo->vecs[0][0] + y * surface->lightmapinfo->texinfo->vecs[0][1] + mid * surface->lightmapinfo->texinfo->vecs[0][2] + surface->lightmapinfo->texinfo->vecs[0][3]) - surface->lightmapinfo->texturemins[0];
1050 dt = (int) (x * surface->lightmapinfo->texinfo->vecs[1][0] + y * surface->lightmapinfo->texinfo->vecs[1][1] + mid * surface->lightmapinfo->texinfo->vecs[1][2] + surface->lightmapinfo->texinfo->vecs[1][3]) - surface->lightmapinfo->texturemins[1];
1052 if (ds >= 0 && ds < surface->lightmapinfo->extents[0] && dt >= 0 && dt < surface->lightmapinfo->extents[1])
1054 unsigned char *lightmap;
1055 int lmwidth, lmheight, maps, line3, size3, dsfrac = ds & 15, dtfrac = dt & 15, scale = 0, r00 = 0, g00 = 0, b00 = 0, r01 = 0, g01 = 0, b01 = 0, r10 = 0, g10 = 0, b10 = 0, r11 = 0, g11 = 0, b11 = 0;
1056 lmwidth = ((surface->lightmapinfo->extents[0]>>4)+1);
1057 lmheight = ((surface->lightmapinfo->extents[1]>>4)+1);
1058 line3 = lmwidth * 3; // LordHavoc: *3 for colored lighting
1059 size3 = lmwidth * lmheight * 3; // LordHavoc: *3 for colored lighting
1061 lightmap = surface->lightmapinfo->samples + ((dt>>4) * lmwidth + (ds>>4))*3; // LordHavoc: *3 for colored lighting
1063 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++)
1065 scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]];
1066 r00 += lightmap[ 0] * scale;g00 += lightmap[ 1] * scale;b00 += lightmap[ 2] * scale;
1067 r01 += lightmap[ 3] * scale;g01 += lightmap[ 4] * scale;b01 += lightmap[ 5] * scale;
1068 r10 += lightmap[line3+0] * scale;g10 += lightmap[line3+1] * scale;b10 += lightmap[line3+2] * scale;
1069 r11 += lightmap[line3+3] * scale;g11 += lightmap[line3+4] * scale;b11 += lightmap[line3+5] * scale;
1074 LordHavoc: here's the readable version of the interpolation
1075 code, not quite as easy for the compiler to optimize...
1077 dsfrac is the X position in the lightmap pixel, * 16
1078 dtfrac is the Y position in the lightmap pixel, * 16
1079 r00 is top left corner, r01 is top right corner
1080 r10 is bottom left corner, r11 is bottom right corner
1081 g and b are the same layout.
1082 r0 and r1 are the top and bottom intermediate results
1084 first we interpolate the top two points, to get the top
1087 r0 = (((r01-r00) * dsfrac) >> 4) + r00;
1088 g0 = (((g01-g00) * dsfrac) >> 4) + g00;
1089 b0 = (((b01-b00) * dsfrac) >> 4) + b00;
1091 then we interpolate the bottom two points, to get the
1094 r1 = (((r11-r10) * dsfrac) >> 4) + r10;
1095 g1 = (((g11-g10) * dsfrac) >> 4) + g10;
1096 b1 = (((b11-b10) * dsfrac) >> 4) + b10;
1098 then we interpolate the top and bottom samples to get the
1099 middle sample (the one which was requested)
1101 r = (((r1-r0) * dtfrac) >> 4) + r0;
1102 g = (((g1-g0) * dtfrac) >> 4) + g0;
1103 b = (((b1-b0) * dtfrac) >> 4) + b0;
1106 ambientcolor[0] += (float) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)) * (1.0f / 32768.0f);
1107 ambientcolor[1] += (float) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)) * (1.0f / 32768.0f);
1108 ambientcolor[2] += (float) ((((((((b11-b10) * dsfrac) >> 4) + b10)-((((b01-b00) * dsfrac) >> 4) + b00)) * dtfrac) >> 4) + ((((b01-b00) * dsfrac) >> 4) + b00)) * (1.0f / 32768.0f);
1109 return true; // success
1114 // go down back side
1115 node = node->children[side ^ 1];
1117 distz = endz - startz;
1122 void Mod_Q1BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
1124 Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, p[0], p[1], p[2] + 0.125, p[2] - 65536);
1125 // pretend lighting is coming down from above (due to lack of a lightgrid to know primary lighting direction)
1126 VectorSet(diffusenormal, 0, 0, 1);
1129 static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char *inend, unsigned char *out, unsigned char *outend)
1132 unsigned char *outstart = out;
1133 while (out < outend)
1137 Con_Printf("Mod_Q1BSP_DecompressVis: input underrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
1147 Con_Printf("Mod_Q1BSP_DecompressVis: input underrun (during zero-run) on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
1150 for (c = *in++;c > 0;c--)
1154 Con_Printf("Mod_Q1BSP_DecompressVis: output overrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
1165 R_Q1BSP_LoadSplitSky
1167 A sky texture is 256*128, with the right side being a masked overlay
1170 void R_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesperpixel)
1173 unsigned solidpixels[128*128], alphapixels[128*128];
1175 // if sky isn't the right size, just use it as a solid layer
1176 if (width != 256 || height != 128)
1178 loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", width, height, src, bytesperpixel == 4 ? TEXTYPE_RGBA : TEXTYPE_PALETTE, TEXF_PRECACHE, bytesperpixel == 1 ? palette_complete : NULL);
1179 loadmodel->brush.alphaskytexture = NULL;
1183 if (bytesperpixel == 4)
1185 for (i = 0;i < 128;i++)
1187 for (j = 0;j < 128;j++)
1189 solidpixels[(i*128) + j] = ((unsigned *)src)[i*256+j+128];
1190 alphapixels[(i*128) + j] = ((unsigned *)src)[i*256+j];
1196 // make an average value for the back to avoid
1197 // a fringe on the top level
1206 for (i = 0;i < 128;i++)
1208 for (j = 0;j < 128;j++)
1210 rgba.i = palette_complete[src[i*256 + j + 128]];
1216 rgba.b[0] = r/(128*128);
1217 rgba.b[1] = g/(128*128);
1218 rgba.b[2] = b/(128*128);
1220 for (i = 0;i < 128;i++)
1222 for (j = 0;j < 128;j++)
1224 solidpixels[(i*128) + j] = palette_complete[src[i*256 + j + 128]];
1225 alphapixels[(i*128) + j] = (p = src[i*256 + j]) ? palette_complete[p] : rgba.i;
1230 loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", 128, 128, (unsigned char *) solidpixels, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
1231 loadmodel->brush.alphaskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_alphatexture", 128, 128, (unsigned char *) alphapixels, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
1234 static void Mod_Q1BSP_LoadTextures(lump_t *l)
1236 int i, j, k, num, max, altmax, mtwidth, mtheight, *dofs, incomplete;
1238 texture_t *tx, *tx2, *anims[10], *altanims[10];
1240 unsigned char *data, *mtdata;
1242 char mapname[MAX_QPATH], name[MAX_QPATH];
1244 loadmodel->data_textures = NULL;
1246 // add two slots for notexture walls and notexture liquids
1249 m = (dmiptexlump_t *)(mod_base + l->fileofs);
1250 m->nummiptex = LittleLong (m->nummiptex);
1251 loadmodel->num_textures = m->nummiptex + 2;
1256 loadmodel->num_textures = 2;
1259 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
1261 // fill out all slots with notexture
1262 for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
1264 strlcpy(tx->name, "NO TEXTURE FOUND", sizeof(tx->name));
1267 tx->numskinframes = 1;
1268 tx->skinframerate = 1;
1269 tx->currentskinframe = tx->skinframes;
1270 tx->skinframes[0].base = r_texture_notexture;
1271 tx->backgroundcurrentskinframe = tx->backgroundskinframes;
1272 tx->basematerialflags = 0;
1273 if (i == loadmodel->num_textures - 1)
1275 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1276 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1277 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1281 tx->basematerialflags |= MATERIALFLAG_WALL;
1282 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1283 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1285 tx->currentframe = tx;
1291 s = loadmodel->name;
1292 if (!strncasecmp(s, "maps/", 5))
1294 FS_StripExtension(s, mapname, sizeof(mapname));
1296 // just to work around bounds checking when debugging with it (array index out of bounds error thing)
1298 // LordHavoc: mostly rewritten map texture loader
1299 for (i = 0;i < m->nummiptex;i++)
1301 dofs[i] = LittleLong(dofs[i]);
1302 if (dofs[i] == -1 || r_nosurftextures.integer)
1304 dmiptex = (miptex_t *)((unsigned char *)m + dofs[i]);
1306 // make sure name is no more than 15 characters
1307 for (j = 0;dmiptex->name[j] && j < 15;j++)
1308 name[j] = dmiptex->name[j];
1311 mtwidth = LittleLong(dmiptex->width);
1312 mtheight = LittleLong(dmiptex->height);
1314 j = LittleLong(dmiptex->offsets[0]);
1318 if (j < 40 || j + mtwidth * mtheight > l->filelen)
1320 Con_Printf("Texture \"%s\" in \"%s\"is corrupt or incomplete\n", dmiptex->name, loadmodel->name);
1323 mtdata = (unsigned char *)dmiptex + j;
1326 if ((mtwidth & 15) || (mtheight & 15))
1327 Con_Printf("warning: texture \"%s\" in \"%s\" is not 16 aligned\n", dmiptex->name, loadmodel->name);
1329 // LordHavoc: force all names to lowercase
1330 for (j = 0;name[j];j++)
1331 if (name[j] >= 'A' && name[j] <= 'Z')
1332 name[j] += 'a' - 'A';
1334 tx = loadmodel->data_textures + i;
1335 strlcpy(tx->name, name, sizeof(tx->name));
1336 tx->width = mtwidth;
1337 tx->height = mtheight;
1341 sprintf(tx->name, "unnamed%i", i);
1342 Con_Printf("warning: unnamed texture in %s, renaming to %s\n", loadmodel->name, tx->name);
1345 if (cls.state != ca_dedicated)
1347 // LordHavoc: HL sky textures are entirely different than quake
1348 if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == 256 && mtheight == 128)
1350 if (loadmodel->isworldmodel)
1352 data = loadimagepixels(tx->name, false, 0, 0);
1355 R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1358 else if (mtdata != NULL)
1359 R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1364 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)
1365 && !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))
1367 // did not find external texture, load it from the bsp or wad3
1368 if (loadmodel->brush.ishlbsp)
1370 // internal texture overrides wad
1371 unsigned char *pixels, *freepixels;
1372 pixels = freepixels = NULL;
1374 pixels = W_ConvertWAD3Texture(dmiptex);
1376 pixels = freepixels = W_GetTexture(tx->name);
1379 tx->width = image_width;
1380 tx->height = image_height;
1381 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);
1384 Mem_Free(freepixels);
1386 else if (mtdata) // texture included
1387 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);
1390 if (tx->skinframes[0].base == NULL)
1395 tx->skinframes[0].base = r_texture_notexture;
1399 tx->basematerialflags = 0;
1400 if (tx->name[0] == '*')
1402 // LordHavoc: some turbulent textures should not be affected by wateralpha
1403 if (strncmp(tx->name,"*lava",5)
1404 && strncmp(tx->name,"*teleport",9)
1405 && strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1406 tx->basematerialflags |= MATERIALFLAG_WATERALPHA | MATERIALFLAG_NOSHADOW;
1407 if (!strncmp(tx->name, "*lava", 5))
1409 tx->supercontents = mod_q1bsp_texture_lava.supercontents;
1410 tx->surfaceflags = mod_q1bsp_texture_lava.surfaceflags;
1412 else if (!strncmp(tx->name, "*slime", 6))
1414 tx->supercontents = mod_q1bsp_texture_slime.supercontents;
1415 tx->surfaceflags = mod_q1bsp_texture_slime.surfaceflags;
1419 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1420 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1422 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1424 else if (tx->name[0] == 's' && tx->name[1] == 'k' && tx->name[2] == 'y')
1426 tx->supercontents = mod_q1bsp_texture_sky.supercontents;
1427 tx->surfaceflags = mod_q1bsp_texture_sky.surfaceflags;
1428 tx->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
1432 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1433 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1434 tx->basematerialflags |= MATERIALFLAG_WALL;
1436 if (tx->skinframes[0].fog)
1437 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_NOSHADOW;
1439 // start out with no animation
1440 tx->currentframe = tx;
1443 // sequence the animations
1444 for (i = 0;i < m->nummiptex;i++)
1446 tx = loadmodel->data_textures + i;
1447 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1449 if (tx->anim_total[0] || tx->anim_total[1])
1450 continue; // already sequenced
1452 // find the number of frames in the animation
1453 memset(anims, 0, sizeof(anims));
1454 memset(altanims, 0, sizeof(altanims));
1456 for (j = i;j < m->nummiptex;j++)
1458 tx2 = loadmodel->data_textures + j;
1459 if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
1463 if (num >= '0' && num <= '9')
1464 anims[num - '0'] = tx2;
1465 else if (num >= 'a' && num <= 'j')
1466 altanims[num - 'a'] = tx2;
1468 Con_Printf("Bad animating texture %s\n", tx->name);
1472 for (j = 0;j < 10;j++)
1479 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
1482 for (j = 0;j < max;j++)
1486 Con_Printf("Missing frame %i of %s\n", j, tx->name);
1490 for (j = 0;j < altmax;j++)
1494 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
1503 // if there is no alternate animation, duplicate the primary
1504 // animation into the alternate
1506 for (k = 0;k < 10;k++)
1507 altanims[k] = anims[k];
1510 // link together the primary animation
1511 for (j = 0;j < max;j++)
1514 tx2->animated = true;
1515 tx2->anim_total[0] = max;
1516 tx2->anim_total[1] = altmax;
1517 for (k = 0;k < 10;k++)
1519 tx2->anim_frames[0][k] = anims[k];
1520 tx2->anim_frames[1][k] = altanims[k];
1524 // if there really is an alternate anim...
1525 if (anims[0] != altanims[0])
1527 // link together the alternate animation
1528 for (j = 0;j < altmax;j++)
1531 tx2->animated = true;
1532 // the primary/alternate are reversed here
1533 tx2->anim_total[0] = altmax;
1534 tx2->anim_total[1] = max;
1535 for (k = 0;k < 10;k++)
1537 tx2->anim_frames[0][k] = altanims[k];
1538 tx2->anim_frames[1][k] = anims[k];
1545 static void Mod_Q1BSP_LoadLighting(lump_t *l)
1548 unsigned char *in, *out, *data, d;
1549 char litfilename[MAX_QPATH];
1550 char dlitfilename[MAX_QPATH];
1551 fs_offset_t filesize;
1552 if (loadmodel->brush.ishlbsp) // LordHavoc: load the colored lighting data straight
1554 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1555 for (i=0; i<l->filelen; i++)
1556 loadmodel->brushq1.lightdata[i] = mod_base[l->fileofs+i] >>= 1;
1558 else if (loadmodel->brush.ismcbsp)
1560 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1561 memcpy(loadmodel->brushq1.lightdata, mod_base + l->fileofs, l->filelen);
1563 else // LordHavoc: bsp version 29 (normal white lighting)
1565 // LordHavoc: hope is not lost yet, check for a .lit file to load
1566 strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
1567 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
1568 strlcpy (dlitfilename, litfilename, sizeof (dlitfilename));
1569 strlcat (litfilename, ".lit", sizeof (litfilename));
1570 strlcat (dlitfilename, ".dlit", sizeof (dlitfilename));
1571 data = (unsigned char*) FS_LoadFile(litfilename, tempmempool, false, &filesize);
1574 if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1576 i = LittleLong(((int *)data)[1]);
1579 Con_DPrintf("loaded %s\n", litfilename);
1580 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1581 memcpy(loadmodel->brushq1.lightdata, data + 8, filesize - 8);
1583 data = (unsigned char*) FS_LoadFile(dlitfilename, tempmempool, false, &filesize);
1586 if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1588 i = LittleLong(((int *)data)[1]);
1591 Con_DPrintf("loaded %s\n", dlitfilename);
1592 loadmodel->brushq1.nmaplightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1593 memcpy(loadmodel->brushq1.nmaplightdata, data + 8, filesize - 8);
1594 loadmodel->brushq3.deluxemapping_modelspace = false;
1595 loadmodel->brushq3.deluxemapping = true;
1604 Con_Printf("Unknown .lit file version (%d)\n", i);
1606 else if (filesize == 8)
1607 Con_Print("Empty .lit file, ignoring\n");
1609 Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", (int) filesize, (int) (8 + l->filelen * 3));
1616 // LordHavoc: oh well, expand the white lighting data
1619 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen*3);
1620 in = mod_base + l->fileofs;
1621 out = loadmodel->brushq1.lightdata;
1622 for (i = 0;i < l->filelen;i++)
1632 static void Mod_Q1BSP_LoadVisibility(lump_t *l)
1634 loadmodel->brushq1.num_compressedpvs = 0;
1635 loadmodel->brushq1.data_compressedpvs = NULL;
1638 loadmodel->brushq1.num_compressedpvs = l->filelen;
1639 loadmodel->brushq1.data_compressedpvs = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1640 memcpy(loadmodel->brushq1.data_compressedpvs, mod_base + l->fileofs, l->filelen);
1643 // used only for HalfLife maps
1644 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
1646 char key[128], value[4096];
1651 if (!COM_ParseTokenConsole(&data))
1653 if (com_token[0] != '{')
1657 if (!COM_ParseTokenConsole(&data))
1659 if (com_token[0] == '}')
1660 break; // end of worldspawn
1661 if (com_token[0] == '_')
1662 strlcpy(key, com_token + 1, sizeof(key));
1664 strlcpy(key, com_token, sizeof(key));
1665 while (key[strlen(key)-1] == ' ') // remove trailing spaces
1666 key[strlen(key)-1] = 0;
1667 if (!COM_ParseTokenConsole(&data))
1669 dpsnprintf(value, sizeof(value), "%s", com_token);
1670 if (!strcmp("wad", key)) // for HalfLife maps
1672 if (loadmodel->brush.ishlbsp)
1675 for (i = 0;i < (int)sizeof(value);i++)
1676 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
1680 for (;i < (int)sizeof(value);i++)
1682 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
1683 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
1685 else if (value[i] == ';' || value[i] == 0)
1689 strlcpy(wadname, "textures/", sizeof(wadname));
1690 strlcat(wadname, &value[j], sizeof(wadname));
1691 W_LoadTextureWadFile(wadname, false);
1703 static void Mod_Q1BSP_LoadEntities(lump_t *l)
1705 loadmodel->brush.entities = NULL;
1708 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1709 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
1710 if (loadmodel->brush.ishlbsp)
1711 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
1715 static void Mod_Q1BSP_LoadVertexes(lump_t *l)
1721 in = (dvertex_t *)(mod_base + l->fileofs);
1722 if (l->filelen % sizeof(*in))
1723 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
1724 count = l->filelen / sizeof(*in);
1725 out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1727 loadmodel->brushq1.vertexes = out;
1728 loadmodel->brushq1.numvertexes = count;
1730 for ( i=0 ; i<count ; i++, in++, out++)
1732 out->position[0] = LittleFloat(in->point[0]);
1733 out->position[1] = LittleFloat(in->point[1]);
1734 out->position[2] = LittleFloat(in->point[2]);
1738 // The following two functions should be removed and MSG_* or SZ_* function sets adjusted so they
1739 // can be used for this
1741 int SB_ReadInt (unsigned char **buffer)
1744 i = ((*buffer)[0]) + 256*((*buffer)[1]) + 65536*((*buffer)[2]) + 16777216*((*buffer)[3]);
1750 float SB_ReadFloat (unsigned char **buffer)
1758 u.i = SB_ReadInt (buffer);
1762 static void Mod_Q1BSP_LoadSubmodels(lump_t *l, hullinfo_t *hullinfo)
1764 unsigned char *index;
1768 index = (unsigned char *)(mod_base + l->fileofs);
1769 if (l->filelen % (48+4*hullinfo->filehulls))
1770 Host_Error ("Mod_Q1BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
1772 count = l->filelen / (48+4*hullinfo->filehulls);
1773 out = (dmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
1775 loadmodel->brushq1.submodels = out;
1776 loadmodel->brush.numsubmodels = count;
1778 for (i = 0; i < count; i++, out++)
1780 // spread out the mins / maxs by a pixel
1781 out->mins[0] = SB_ReadFloat (&index) - 1;
1782 out->mins[1] = SB_ReadFloat (&index) - 1;
1783 out->mins[2] = SB_ReadFloat (&index) - 1;
1784 out->maxs[0] = SB_ReadFloat (&index) + 1;
1785 out->maxs[1] = SB_ReadFloat (&index) + 1;
1786 out->maxs[2] = SB_ReadFloat (&index) + 1;
1787 out->origin[0] = SB_ReadFloat (&index);
1788 out->origin[1] = SB_ReadFloat (&index);
1789 out->origin[2] = SB_ReadFloat (&index);
1790 for (j = 0; j < hullinfo->filehulls; j++)
1791 out->headnode[j] = SB_ReadInt (&index);
1792 out->visleafs = SB_ReadInt (&index);
1793 out->firstface = SB_ReadInt (&index);
1794 out->numfaces = SB_ReadInt (&index);
1798 static void Mod_Q1BSP_LoadEdges(lump_t *l)
1804 in = (dedge_t *)(mod_base + l->fileofs);
1805 if (l->filelen % sizeof(*in))
1806 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
1807 count = l->filelen / sizeof(*in);
1808 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1810 loadmodel->brushq1.edges = out;
1811 loadmodel->brushq1.numedges = count;
1813 for ( i=0 ; i<count ; i++, in++, out++)
1815 out->v[0] = (unsigned short)LittleShort(in->v[0]);
1816 out->v[1] = (unsigned short)LittleShort(in->v[1]);
1817 if (out->v[0] >= loadmodel->brushq1.numvertexes || out->v[1] >= loadmodel->brushq1.numvertexes)
1819 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);
1826 static void Mod_Q1BSP_LoadTexinfo(lump_t *l)
1830 int i, j, k, count, miptex;
1832 in = (texinfo_t *)(mod_base + l->fileofs);
1833 if (l->filelen % sizeof(*in))
1834 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
1835 count = l->filelen / sizeof(*in);
1836 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1838 loadmodel->brushq1.texinfo = out;
1839 loadmodel->brushq1.numtexinfo = count;
1841 for (i = 0;i < count;i++, in++, out++)
1843 for (k = 0;k < 2;k++)
1844 for (j = 0;j < 4;j++)
1845 out->vecs[k][j] = LittleFloat(in->vecs[k][j]);
1847 miptex = LittleLong(in->miptex);
1848 out->flags = LittleLong(in->flags);
1850 out->texture = NULL;
1851 if (loadmodel->data_textures)
1853 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
1854 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
1856 out->texture = loadmodel->data_textures + miptex;
1858 if (out->flags & TEX_SPECIAL)
1860 // if texture chosen is NULL or the shader needs a lightmap,
1861 // force to notexture water shader
1862 if (out->texture == NULL || out->texture->basematerialflags & MATERIALFLAG_WALL)
1863 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 1);
1867 // if texture chosen is NULL, force to notexture
1868 if (out->texture == NULL)
1869 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 2);
1875 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
1880 mins[0] = mins[1] = mins[2] = 9999;
1881 maxs[0] = maxs[1] = maxs[2] = -9999;
1883 for (i = 0;i < numverts;i++)
1885 for (j = 0;j < 3;j++, v++)
1895 #define MAX_SUBDIVPOLYTRIANGLES 4096
1896 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
1898 static int subdivpolyverts, subdivpolytriangles;
1899 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
1900 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
1902 static int subdivpolylookupvert(vec3_t v)
1905 for (i = 0;i < subdivpolyverts;i++)
1906 if (subdivpolyvert[i][0] == v[0]
1907 && subdivpolyvert[i][1] == v[1]
1908 && subdivpolyvert[i][2] == v[2])
1910 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
1911 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
1912 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
1913 return subdivpolyverts++;
1916 static void SubdividePolygon(int numverts, float *verts)
1918 int i, i1, i2, i3, f, b, c, p;
1919 vec3_t mins, maxs, front[256], back[256];
1920 float m, *pv, *cv, dist[256], frac;
1923 Host_Error("SubdividePolygon: ran out of verts in buffer");
1925 BoundPoly(numverts, verts, mins, maxs);
1927 for (i = 0;i < 3;i++)
1929 m = (mins[i] + maxs[i]) * 0.5;
1930 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
1931 if (maxs[i] - m < 8)
1933 if (m - mins[i] < 8)
1937 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
1938 dist[c] = cv[i] - m;
1941 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
1945 VectorCopy(pv, front[f]);
1950 VectorCopy(pv, back[b]);
1953 if (dist[p] == 0 || dist[c] == 0)
1955 if ((dist[p] > 0) != (dist[c] > 0) )
1958 frac = dist[p] / (dist[p] - dist[c]);
1959 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
1960 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
1961 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
1967 SubdividePolygon(f, front[0]);
1968 SubdividePolygon(b, back[0]);
1972 i1 = subdivpolylookupvert(verts);
1973 i2 = subdivpolylookupvert(verts + 3);
1974 for (i = 2;i < numverts;i++)
1976 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
1978 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
1982 i3 = subdivpolylookupvert(verts + i * 3);
1983 subdivpolyindex[subdivpolytriangles][0] = i1;
1984 subdivpolyindex[subdivpolytriangles][1] = i2;
1985 subdivpolyindex[subdivpolytriangles][2] = i3;
1987 subdivpolytriangles++;
1991 //Breaks a polygon up along axial 64 unit
1992 //boundaries so that turbulent and sky warps
1993 //can be done reasonably.
1994 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
2000 subdivpolytriangles = 0;
2001 subdivpolyverts = 0;
2002 SubdividePolygon(surface->num_vertices, (surface->mesh->data_vertex3f + 3 * surface->num_firstvertex));
2003 if (subdivpolytriangles < 1)
2004 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?");
2006 surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
2007 mesh->num_vertices = subdivpolyverts;
2008 mesh->num_triangles = subdivpolytriangles;
2009 mesh->vertex = (surfvertex_t *)(mesh + 1);
2010 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
2011 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
2013 for (i = 0;i < mesh->num_triangles;i++)
2014 for (j = 0;j < 3;j++)
2015 mesh->index[i*3+j] = subdivpolyindex[i][j];
2017 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
2019 VectorCopy(subdivpolyvert[i], v->v);
2020 v->st[0] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[0]);
2021 v->st[1] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[1]);
2026 static qboolean Mod_Q1BSP_AllocLightmapBlock(int *lineused, int totalwidth, int totalheight, int blockwidth, int blockheight, int *outx, int *outy)
2029 int bestx = totalwidth, besty = 0;
2030 // find the left-most space we can find
2031 for (y = 0;y <= totalheight - blockheight;y++)
2034 for (y2 = 0;y2 < blockheight;y2++)
2035 x2 = max(x2, lineused[y+y2]);
2042 // if the best was not good enough, return failure
2043 if (bestx > totalwidth - blockwidth)
2045 // we found a good spot
2050 // now mark the space used
2051 for (y2 = 0;y2 < blockheight;y2++)
2052 lineused[besty+y2] = bestx + blockwidth;
2057 static void Mod_Q1BSP_LoadFaces(lump_t *l)
2060 msurface_t *surface;
2061 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber;
2062 float texmins[2], texmaxs[2], val, lightmaptexcoordscale;
2063 #define LIGHTMAPSIZE 256
2064 rtexture_t *lightmaptexture, *deluxemaptexture;
2065 int lightmap_lineused[LIGHTMAPSIZE];
2067 in = (dface_t *)(mod_base + l->fileofs);
2068 if (l->filelen % sizeof(*in))
2069 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
2070 count = l->filelen / sizeof(*in);
2071 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
2072 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
2074 loadmodel->num_surfaces = count;
2078 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs);surfacenum < count;surfacenum++, in++)
2080 numedges = LittleShort(in->numedges);
2081 totalverts += numedges;
2082 totaltris += numedges - 2;
2085 Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false, false);
2087 lightmaptexture = NULL;
2088 deluxemaptexture = r_texture_blanknormalmap;
2090 lightmaptexcoordscale = 1.0f / (float)LIGHTMAPSIZE;
2094 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs), surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, in++, surface++)
2096 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
2098 // FIXME: validate edges, texinfo, etc?
2099 firstedge = LittleLong(in->firstedge);
2100 numedges = LittleShort(in->numedges);
2101 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)
2102 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)", firstedge, numedges, loadmodel->brushq1.numsurfedges);
2103 i = LittleShort(in->texinfo);
2104 if ((unsigned int) i >= (unsigned int) loadmodel->brushq1.numtexinfo)
2105 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)", i, loadmodel->brushq1.numtexinfo);
2106 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + i;
2107 surface->texture = surface->lightmapinfo->texinfo->texture;
2109 planenum = LittleShort(in->planenum);
2110 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
2111 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)", planenum, loadmodel->brush.num_planes);
2113 //surface->flags = surface->texture->flags;
2114 //if (LittleShort(in->side))
2115 // surface->flags |= SURF_PLANEBACK;
2116 //surface->plane = loadmodel->brush.data_planes + planenum;
2118 surface->num_firstvertex = totalverts;
2119 surface->num_vertices = numedges;
2120 surface->num_firsttriangle = totaltris;
2121 surface->num_triangles = numedges - 2;
2122 totalverts += numedges;
2123 totaltris += numedges - 2;
2125 // convert edges back to a normal polygon
2126 for (i = 0;i < surface->num_vertices;i++)
2128 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
2131 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2133 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2134 s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2135 t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2136 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
2137 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
2138 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
2139 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
2140 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
2143 for (i = 0;i < surface->num_triangles;i++)
2145 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
2146 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
2147 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
2150 // compile additional data about the surface geometry
2151 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);
2152 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);
2153 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
2155 // generate surface extents information
2156 texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2157 texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2158 for (i = 1;i < surface->num_vertices;i++)
2160 for (j = 0;j < 2;j++)
2162 val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
2163 texmins[j] = min(texmins[j], val);
2164 texmaxs[j] = max(texmaxs[j], val);
2167 for (i = 0;i < 2;i++)
2169 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
2170 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
2173 smax = surface->lightmapinfo->extents[0] >> 4;
2174 tmax = surface->lightmapinfo->extents[1] >> 4;
2175 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2176 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2179 for (i = 0;i < MAXLIGHTMAPS;i++)
2180 surface->lightmapinfo->styles[i] = in->styles[i];
2181 surface->lightmaptexture = NULL;
2182 surface->deluxemaptexture = r_texture_blanknormalmap;
2183 i = LittleLong(in->lightofs);
2186 surface->lightmapinfo->samples = NULL;
2187 // give non-lightmapped water a 1x white lightmap
2188 if ((surface->texture->basematerialflags & MATERIALFLAG_WATER) && (surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
2190 surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2191 surface->lightmapinfo->styles[0] = 0;
2192 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
2195 else if (loadmodel->brush.ishlbsp) // LordHavoc: HalfLife map (bsp version 30)
2196 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + i;
2197 else // LordHavoc: white lighting (bsp version 29)
2199 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (i * 3);
2200 if (loadmodel->brushq1.nmaplightdata)
2201 surface->lightmapinfo->nmapsamples = loadmodel->brushq1.nmaplightdata + (i * 3);
2204 // check if we should apply a lightmap to this
2205 if (!(surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
2207 int i, iu, iv, lightmapx, lightmapy;
2208 float u, v, ubase, vbase, uscale, vscale;
2210 if (ssize > 256 || tsize > 256)
2211 Host_Error("Bad surface extents");
2212 // force lightmap upload on first time seeing the surface
2213 surface->cached_dlight = true;
2214 // stainmap for permanent marks on walls
2215 surface->lightmapinfo->stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2217 memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
2219 // find a place for this lightmap
2220 if (!lightmaptexture || !Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, LIGHTMAPSIZE, LIGHTMAPSIZE, ssize, tsize, &lightmapx, &lightmapy))
2222 // could not find room, make a new lightmap
2223 lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%i", lightmapnumber), LIGHTMAPSIZE, LIGHTMAPSIZE, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2224 if (loadmodel->brushq1.nmaplightdata)
2225 deluxemaptexture = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%i", lightmapnumber), LIGHTMAPSIZE, LIGHTMAPSIZE, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2227 memset(lightmap_lineused, 0, sizeof(lightmap_lineused));
2228 Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, LIGHTMAPSIZE, LIGHTMAPSIZE, ssize, tsize, &lightmapx, &lightmapy);
2231 surface->lightmaptexture = lightmaptexture;
2232 surface->deluxemaptexture = deluxemaptexture;
2233 surface->lightmapinfo->lightmaporigin[0] = lightmapx;
2234 surface->lightmapinfo->lightmaporigin[1] = lightmapy;
2236 ubase = lightmapx * lightmaptexcoordscale;
2237 vbase = lightmapy * lightmaptexcoordscale;
2238 uscale = lightmaptexcoordscale;
2239 vscale = lightmaptexcoordscale;
2241 for (i = 0;i < surface->num_vertices;i++)
2243 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);
2244 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);
2245 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
2246 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
2247 // LordHavoc: calc lightmap data offset for vertex lighting to use
2250 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
2256 static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
2259 // Host_Error("Mod_Q1BSP_LoadNodes_RecursiveSetParent: runaway recursion");
2260 node->parent = parent;
2263 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
2264 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
2268 static void Mod_Q1BSP_LoadNodes(lump_t *l)
2274 in = (dnode_t *)(mod_base + l->fileofs);
2275 if (l->filelen % sizeof(*in))
2276 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
2277 count = l->filelen / sizeof(*in);
2278 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2280 loadmodel->brush.data_nodes = out;
2281 loadmodel->brush.num_nodes = count;
2283 for ( i=0 ; i<count ; i++, in++, out++)
2285 for (j=0 ; j<3 ; j++)
2287 out->mins[j] = LittleShort(in->mins[j]);
2288 out->maxs[j] = LittleShort(in->maxs[j]);
2291 p = LittleLong(in->planenum);
2292 out->plane = loadmodel->brush.data_planes + p;
2294 out->firstsurface = LittleShort(in->firstface);
2295 out->numsurfaces = LittleShort(in->numfaces);
2297 for (j=0 ; j<2 ; j++)
2299 p = LittleShort(in->children[j]);
2301 out->children[j] = loadmodel->brush.data_nodes + p;
2303 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + (-1 - p));
2307 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
2310 static void Mod_Q1BSP_LoadLeafs(lump_t *l)
2316 in = (dleaf_t *)(mod_base + l->fileofs);
2317 if (l->filelen % sizeof(*in))
2318 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2319 count = l->filelen / sizeof(*in);
2320 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2322 loadmodel->brush.data_leafs = out;
2323 loadmodel->brush.num_leafs = count;
2324 // get visleafs from the submodel data
2325 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2326 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2327 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2328 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2330 for ( i=0 ; i<count ; i++, in++, out++)
2332 for (j=0 ; j<3 ; j++)
2334 out->mins[j] = LittleShort(in->mins[j]);
2335 out->maxs[j] = LittleShort(in->maxs[j]);
2338 // FIXME: this function could really benefit from some error checking
2340 out->contents = LittleLong(in->contents);
2342 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + LittleShort(in->firstmarksurface);
2343 out->numleafsurfaces = LittleShort(in->nummarksurfaces);
2344 if (out->firstleafsurface < 0 || LittleShort(in->firstmarksurface) + out->numleafsurfaces > loadmodel->brush.num_leafsurfaces)
2346 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);
2347 out->firstleafsurface = NULL;
2348 out->numleafsurfaces = 0;
2351 out->clusterindex = i - 1;
2352 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
2353 out->clusterindex = -1;
2355 p = LittleLong(in->visofs);
2356 // ignore visofs errors on leaf 0 (solid)
2357 if (p >= 0 && out->clusterindex >= 0)
2359 if (p >= loadmodel->brushq1.num_compressedpvs)
2360 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
2362 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);
2365 for (j = 0;j < 4;j++)
2366 out->ambient_sound_level[j] = in->ambient_level[j];
2368 // FIXME: Insert caustics here
2372 qboolean Mod_Q1BSP_CheckWaterAlphaSupport(void)
2376 const unsigned char *pvs;
2377 // check all liquid leafs to see if they can see into empty leafs, if any
2378 // can we can assume this map supports r_wateralpha
2379 for (i = 0, leaf = loadmodel->brush.data_leafs;i < loadmodel->brush.num_leafs;i++, leaf++)
2381 if ((leaf->contents == CONTENTS_WATER || leaf->contents == CONTENTS_SLIME) && (leaf->clusterindex >= 0 && loadmodel->brush.data_pvsclusters))
2383 pvs = loadmodel->brush.data_pvsclusters + leaf->clusterindex * loadmodel->brush.num_pvsclusterbytes;
2384 for (j = 0;j < loadmodel->brush.num_leafs;j++)
2385 if (CHECKPVSBIT(pvs, loadmodel->brush.data_leafs[j].clusterindex) && loadmodel->brush.data_leafs[j].contents == CONTENTS_EMPTY)
2392 static void Mod_Q1BSP_LoadClipnodes(lump_t *l, hullinfo_t *hullinfo)
2394 dclipnode_t *in, *out;
2398 in = (dclipnode_t *)(mod_base + l->fileofs);
2399 if (l->filelen % sizeof(*in))
2400 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
2401 count = l->filelen / sizeof(*in);
2402 out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2404 loadmodel->brushq1.clipnodes = out;
2405 loadmodel->brushq1.numclipnodes = count;
2407 for (i = 1; i < hullinfo->numhulls; i++)
2409 hull = &loadmodel->brushq1.hulls[i];
2410 hull->clipnodes = out;
2411 hull->firstclipnode = 0;
2412 hull->lastclipnode = count-1;
2413 hull->planes = loadmodel->brush.data_planes;
2414 hull->clip_mins[0] = hullinfo->hullsizes[i][0][0];
2415 hull->clip_mins[1] = hullinfo->hullsizes[i][0][1];
2416 hull->clip_mins[2] = hullinfo->hullsizes[i][0][2];
2417 hull->clip_maxs[0] = hullinfo->hullsizes[i][1][0];
2418 hull->clip_maxs[1] = hullinfo->hullsizes[i][1][1];
2419 hull->clip_maxs[2] = hullinfo->hullsizes[i][1][2];
2420 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2423 for (i=0 ; i<count ; i++, out++, in++)
2425 out->planenum = LittleLong(in->planenum);
2426 out->children[0] = LittleShort(in->children[0]);
2427 out->children[1] = LittleShort(in->children[1]);
2428 if (out->planenum < 0 || out->planenum >= loadmodel->brush.num_planes)
2429 Host_Error("Corrupt clipping hull(out of range planenum)");
2430 if (out->children[0] >= count || out->children[1] >= count)
2431 Host_Error("Corrupt clipping hull(out of range child)");
2435 //Duplicate the drawing hull structure as a clipping hull
2436 static void Mod_Q1BSP_MakeHull0(void)
2443 hull = &loadmodel->brushq1.hulls[0];
2445 in = loadmodel->brush.data_nodes;
2446 out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(dclipnode_t));
2448 hull->clipnodes = out;
2449 hull->firstclipnode = 0;
2450 hull->lastclipnode = loadmodel->brush.num_nodes - 1;
2451 hull->planes = loadmodel->brush.data_planes;
2453 for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
2455 out->planenum = in->plane - loadmodel->brush.data_planes;
2456 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
2457 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
2461 static void Mod_Q1BSP_LoadLeaffaces(lump_t *l)
2466 in = (short *)(mod_base + l->fileofs);
2467 if (l->filelen % sizeof(*in))
2468 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
2469 loadmodel->brush.num_leafsurfaces = l->filelen / sizeof(*in);
2470 loadmodel->brush.data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
2472 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
2474 j = (unsigned) LittleShort(in[i]);
2475 if (j >= loadmodel->num_surfaces)
2476 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
2477 loadmodel->brush.data_leafsurfaces[i] = j;
2481 static void Mod_Q1BSP_LoadSurfedges(lump_t *l)
2486 in = (int *)(mod_base + l->fileofs);
2487 if (l->filelen % sizeof(*in))
2488 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
2489 loadmodel->brushq1.numsurfedges = l->filelen / sizeof(*in);
2490 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
2492 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
2493 loadmodel->brushq1.surfedges[i] = LittleLong(in[i]);
2497 static void Mod_Q1BSP_LoadPlanes(lump_t *l)
2503 in = (dplane_t *)(mod_base + l->fileofs);
2504 if (l->filelen % sizeof(*in))
2505 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
2507 loadmodel->brush.num_planes = l->filelen / sizeof(*in);
2508 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
2510 for (i = 0;i < loadmodel->brush.num_planes;i++, in++, out++)
2512 out->normal[0] = LittleFloat(in->normal[0]);
2513 out->normal[1] = LittleFloat(in->normal[1]);
2514 out->normal[2] = LittleFloat(in->normal[2]);
2515 out->dist = LittleFloat(in->dist);
2521 static void Mod_Q1BSP_LoadMapBrushes(void)
2525 int submodel, numbrushes;
2526 qboolean firstbrush;
2527 char *text, *maptext;
2528 char mapfilename[MAX_QPATH];
2529 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
2530 strlcat (mapfilename, ".map", sizeof (mapfilename));
2531 maptext = (unsigned char*) FS_LoadFile(mapfilename, tempmempool, false, NULL);
2535 if (!COM_ParseTokenConsole(&data))
2540 if (!COM_ParseTokenConsole(&data))
2542 if (com_token[0] != '{')
2548 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
2551 if (!COM_ParseTokenConsole(&data))
2553 if (com_token[0] == '}')
2554 break; // end of entity
2555 if (com_token[0] == '{')
2562 if (submodel > loadmodel->brush.numsubmodels)
2564 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
2568 model = loadmodel->brush.submodels[submodel];
2575 if (!COM_ParseTokenConsole(&data))
2577 if (com_token[0] == '}')
2578 break; // end of brush
2579 // each brush face should be this format:
2580 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
2581 // FIXME: support hl .map format
2582 for (pointnum = 0;pointnum < 3;pointnum++)
2584 COM_ParseTokenConsole(&data);
2585 for (componentnum = 0;componentnum < 3;componentnum++)
2587 COM_ParseTokenConsole(&data);
2588 point[pointnum][componentnum] = atof(com_token);
2590 COM_ParseTokenConsole(&data);
2592 COM_ParseTokenConsole(&data);
2593 strlcpy(facetexture, com_token, sizeof(facetexture));
2594 COM_ParseTokenConsole(&data);
2595 //scroll_s = atof(com_token);
2596 COM_ParseTokenConsole(&data);
2597 //scroll_t = atof(com_token);
2598 COM_ParseTokenConsole(&data);
2599 //rotate = atof(com_token);
2600 COM_ParseTokenConsole(&data);
2601 //scale_s = atof(com_token);
2602 COM_ParseTokenConsole(&data);
2603 //scale_t = atof(com_token);
2604 TriangleNormal(point[0], point[1], point[2], planenormal);
2605 VectorNormalizeDouble(planenormal);
2606 planedist = DotProduct(point[0], planenormal);
2607 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
2617 #define MAX_PORTALPOINTS 64
2619 typedef struct portal_s
2622 mnode_t *nodes[2]; // [0] = front side of plane
2623 struct portal_s *next[2];
2625 double points[3*MAX_PORTALPOINTS];
2626 struct portal_s *chain; // all portals are linked into a list
2630 static portal_t *portalchain;
2637 static portal_t *AllocPortal(void)
2640 p = (portal_t *)Mem_Alloc(loadmodel->mempool, sizeof(portal_t));
2641 p->chain = portalchain;
2646 static void FreePortal(portal_t *p)
2651 static void Mod_Q1BSP_RecursiveRecalcNodeBBox(mnode_t *node)
2653 // process only nodes (leafs already had their box calculated)
2657 // calculate children first
2658 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[0]);
2659 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[1]);
2661 // make combined bounding box from children
2662 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
2663 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
2664 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
2665 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
2666 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
2667 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
2670 static void Mod_Q1BSP_FinalizePortals(void)
2672 int i, j, numportals, numpoints;
2673 portal_t *p, *pnext;
2676 mleaf_t *leaf, *endleaf;
2678 // tally up portal and point counts and recalculate bounding boxes for all
2679 // leafs (because qbsp is very sloppy)
2680 leaf = loadmodel->brush.data_leafs;
2681 endleaf = leaf + loadmodel->brush.num_leafs;
2682 for (;leaf < endleaf;leaf++)
2684 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
2685 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
2692 // note: this check must match the one below or it will usually corrupt memory
2693 // 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
2694 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2697 numpoints += p->numpoints * 2;
2701 loadmodel->brush.data_portals = (mportal_t *)Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
2702 loadmodel->brush.num_portals = numportals;
2703 loadmodel->brush.data_portalpoints = (mvertex_t *)((unsigned char *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
2704 loadmodel->brush.num_portalpoints = numpoints;
2705 // clear all leaf portal chains
2706 for (i = 0;i < loadmodel->brush.num_leafs;i++)
2707 loadmodel->brush.data_leafs[i].portals = NULL;
2708 // process all portals in the global portal chain, while freeing them
2709 portal = loadmodel->brush.data_portals;
2710 point = loadmodel->brush.data_portalpoints;
2717 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1])
2719 // note: this check must match the one above or it will usually corrupt memory
2720 // 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
2721 if (((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2723 // first make the back to front portal(forward portal)
2724 portal->points = point;
2725 portal->numpoints = p->numpoints;
2726 portal->plane.dist = p->plane.dist;
2727 VectorCopy(p->plane.normal, portal->plane.normal);
2728 portal->here = (mleaf_t *)p->nodes[1];
2729 portal->past = (mleaf_t *)p->nodes[0];
2731 for (j = 0;j < portal->numpoints;j++)
2733 VectorCopy(p->points + j*3, point->position);
2736 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2737 PlaneClassify(&portal->plane);
2739 // link into leaf's portal chain
2740 portal->next = portal->here->portals;
2741 portal->here->portals = portal;
2743 // advance to next portal
2746 // then make the front to back portal(backward portal)
2747 portal->points = point;
2748 portal->numpoints = p->numpoints;
2749 portal->plane.dist = -p->plane.dist;
2750 VectorNegate(p->plane.normal, portal->plane.normal);
2751 portal->here = (mleaf_t *)p->nodes[0];
2752 portal->past = (mleaf_t *)p->nodes[1];
2754 for (j = portal->numpoints - 1;j >= 0;j--)
2756 VectorCopy(p->points + j*3, point->position);
2759 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2760 PlaneClassify(&portal->plane);
2762 // link into leaf's portal chain
2763 portal->next = portal->here->portals;
2764 portal->here->portals = portal;
2766 // advance to next portal
2769 // add the portal's polygon points to the leaf bounding boxes
2770 for (i = 0;i < 2;i++)
2772 leaf = (mleaf_t *)p->nodes[i];
2773 for (j = 0;j < p->numpoints;j++)
2775 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
2776 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
2777 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
2778 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
2779 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
2780 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
2787 // now recalculate the node bounding boxes from the leafs
2788 Mod_Q1BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes);
2796 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
2799 Host_Error("AddPortalToNodes: NULL front node");
2801 Host_Error("AddPortalToNodes: NULL back node");
2802 if (p->nodes[0] || p->nodes[1])
2803 Host_Error("AddPortalToNodes: already included");
2804 // 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
2806 p->nodes[0] = front;
2807 p->next[0] = (portal_t *)front->portals;
2808 front->portals = (mportal_t *)p;
2811 p->next[1] = (portal_t *)back->portals;
2812 back->portals = (mportal_t *)p;
2817 RemovePortalFromNode
2820 static void RemovePortalFromNodes(portal_t *portal)
2824 void **portalpointer;
2826 for (i = 0;i < 2;i++)
2828 node = portal->nodes[i];
2830 portalpointer = (void **) &node->portals;
2833 t = (portal_t *)*portalpointer;
2835 Host_Error("RemovePortalFromNodes: portal not in leaf");
2839 if (portal->nodes[0] == node)
2841 *portalpointer = portal->next[0];
2842 portal->nodes[0] = NULL;
2844 else if (portal->nodes[1] == node)
2846 *portalpointer = portal->next[1];
2847 portal->nodes[1] = NULL;
2850 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2854 if (t->nodes[0] == node)
2855 portalpointer = (void **) &t->next[0];
2856 else if (t->nodes[1] == node)
2857 portalpointer = (void **) &t->next[1];
2859 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2864 #define PORTAL_DIST_EPSILON (1.0 / 32.0)
2865 static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
2868 mnode_t *front, *back, *other_node;
2869 mplane_t clipplane, *plane;
2870 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
2871 int numfrontpoints, numbackpoints;
2872 double frontpoints[3*MAX_PORTALPOINTS], backpoints[3*MAX_PORTALPOINTS];
2874 // if a leaf, we're done
2878 plane = node->plane;
2880 front = node->children[0];
2881 back = node->children[1];
2883 Host_Error("Mod_Q1BSP_RecursiveNodePortals: corrupt node hierarchy");
2885 // create the new portal by generating a polygon for the node plane,
2886 // and clipping it by all of the other portals(which came from nodes above this one)
2887 nodeportal = AllocPortal();
2888 nodeportal->plane = *plane;
2890 // 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)
2891 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);
2892 nodeportal->numpoints = 4;
2893 side = 0; // shut up compiler warning
2894 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
2896 clipplane = portal->plane;
2897 if (portal->nodes[0] == portal->nodes[1])
2898 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(1)");
2899 if (portal->nodes[0] == node)
2901 else if (portal->nodes[1] == node)
2903 clipplane.dist = -clipplane.dist;
2904 VectorNegate(clipplane.normal, clipplane.normal);
2908 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2910 for (i = 0;i < nodeportal->numpoints*3;i++)
2911 frontpoints[i] = nodeportal->points[i];
2912 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);
2913 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
2917 if (nodeportal->numpoints < 3)
2919 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
2920 nodeportal->numpoints = 0;
2922 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
2924 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
2925 nodeportal->numpoints = 0;
2928 AddPortalToNodes(nodeportal, front, back);
2930 // split the portals of this node along this node's plane and assign them to the children of this node
2931 // (migrating the portals downward through the tree)
2932 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
2934 if (portal->nodes[0] == portal->nodes[1])
2935 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(2)");
2936 if (portal->nodes[0] == node)
2938 else if (portal->nodes[1] == node)
2941 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
2942 nextportal = portal->next[side];
2943 if (!portal->numpoints)
2946 other_node = portal->nodes[!side];
2947 RemovePortalFromNodes(portal);
2949 // cut the portal into two portals, one on each side of the node plane
2950 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);
2952 if (!numfrontpoints)
2955 AddPortalToNodes(portal, back, other_node);
2957 AddPortalToNodes(portal, other_node, back);
2963 AddPortalToNodes(portal, front, other_node);
2965 AddPortalToNodes(portal, other_node, front);
2969 // the portal is split
2970 splitportal = AllocPortal();
2971 temp = splitportal->chain;
2972 *splitportal = *portal;
2973 splitportal->chain = temp;
2974 for (i = 0;i < numbackpoints*3;i++)
2975 splitportal->points[i] = backpoints[i];
2976 splitportal->numpoints = numbackpoints;
2977 for (i = 0;i < numfrontpoints*3;i++)
2978 portal->points[i] = frontpoints[i];
2979 portal->numpoints = numfrontpoints;
2983 AddPortalToNodes(portal, front, other_node);
2984 AddPortalToNodes(splitportal, back, other_node);
2988 AddPortalToNodes(portal, other_node, front);
2989 AddPortalToNodes(splitportal, other_node, back);
2993 Mod_Q1BSP_RecursiveNodePortals(front);
2994 Mod_Q1BSP_RecursiveNodePortals(back);
2997 static void Mod_Q1BSP_MakePortals(void)
3000 Mod_Q1BSP_RecursiveNodePortals(loadmodel->brush.data_nodes);
3001 Mod_Q1BSP_FinalizePortals();
3004 static void Mod_Q1BSP_BuildLightmapUpdateChains(mempool_t *mempool, model_t *model)
3006 int i, j, stylecounts[256], totalcount, remapstyles[256];
3007 msurface_t *surface;
3008 memset(stylecounts, 0, sizeof(stylecounts));
3009 for (i = 0;i < model->nummodelsurfaces;i++)
3011 surface = model->data_surfaces + model->firstmodelsurface + i;
3012 for (j = 0;j < MAXLIGHTMAPS;j++)
3013 stylecounts[surface->lightmapinfo->styles[j]]++;
3016 model->brushq1.light_styles = 0;
3017 for (i = 0;i < 255;i++)
3021 remapstyles[i] = model->brushq1.light_styles++;
3022 totalcount += stylecounts[i] + 1;
3027 model->brushq1.light_style = (unsigned char *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(unsigned char));
3028 model->brushq1.light_stylevalue = (int *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(int));
3029 model->brushq1.light_styleupdatechains = (msurface_t ***)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(msurface_t **));
3030 model->brushq1.light_styleupdatechainsbuffer = (msurface_t **)Mem_Alloc(mempool, totalcount * sizeof(msurface_t *));
3031 model->brushq1.light_styles = 0;
3032 for (i = 0;i < 255;i++)
3034 model->brushq1.light_style[model->brushq1.light_styles++] = i;
3036 for (i = 0;i < model->brushq1.light_styles;i++)
3038 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
3039 j += stylecounts[model->brushq1.light_style[i]] + 1;
3041 for (i = 0;i < model->nummodelsurfaces;i++)
3043 surface = model->data_surfaces + model->firstmodelsurface + i;
3044 for (j = 0;j < MAXLIGHTMAPS;j++)
3045 if (surface->lightmapinfo->styles[j] != 255)
3046 *model->brushq1.light_styleupdatechains[remapstyles[surface->lightmapinfo->styles[j]]]++ = surface;
3049 for (i = 0;i < model->brushq1.light_styles;i++)
3051 *model->brushq1.light_styleupdatechains[i] = NULL;
3052 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
3053 j += stylecounts[model->brushq1.light_style[i]] + 1;
3057 //Returns PVS data for a given point
3058 //(note: can return NULL)
3059 static unsigned char *Mod_Q1BSP_GetPVS(model_t *model, const vec3_t p)
3062 node = model->brush.data_nodes;
3064 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
3065 if (((mleaf_t *)node)->clusterindex >= 0)
3066 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3071 static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
3075 float d = PlaneDiff(org, node->plane);
3077 node = node->children[0];
3078 else if (d < -radius)
3079 node = node->children[1];
3082 // go down both sides
3083 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
3084 node = node->children[1];
3087 // if this leaf is in a cluster, accumulate the pvs bits
3088 if (((mleaf_t *)node)->clusterindex >= 0)
3091 unsigned char *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3092 for (i = 0;i < pvsbytes;i++)
3093 pvsbuffer[i] |= pvs[i];
3097 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
3098 //of the given point.
3099 static int Mod_Q1BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength)
3101 int bytes = model->brush.num_pvsclusterbytes;
3102 bytes = min(bytes, pvsbufferlength);
3103 if (r_novis.integer || !model->brush.num_pvsclusters || !Mod_Q1BSP_GetPVS(model, org))
3105 memset(pvsbuffer, 0xFF, bytes);
3108 memset(pvsbuffer, 0, bytes);
3109 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes);
3113 static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
3118 VectorSubtract(inmaxs, inmins, size);
3119 if (cmodel->brush.ismcbsp)
3122 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3123 else if (size[2] < 48) // pick the nearest of 40 or 56
3124 hull = &cmodel->brushq1.hulls[2]; // 16x16x40
3126 hull = &cmodel->brushq1.hulls[1]; // 16x16x56
3128 else if (cmodel->brush.ishlbsp)
3131 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3132 else if (size[0] <= 32)
3134 if (size[2] < 54) // pick the nearest of 36 or 72
3135 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
3137 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
3140 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
3145 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3146 else if (size[0] <= 32)
3147 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
3149 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
3151 VectorCopy(inmins, outmins);
3152 VectorAdd(inmins, hull->clip_size, outmaxs);
3155 void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
3160 mempool_t *mainmempool;
3161 float dist, modelyawradius, modelradius, *vec;
3162 msurface_t *surface;
3163 int numshadowmeshtriangles;
3165 hullinfo_t hullinfo;
3167 mod->type = mod_brushq1;
3169 if (!memcmp (buffer, "MCBSPpad", 8))
3171 unsigned char *index;
3173 mod->brush.ismcbsp = true;
3174 mod->brush.ishlbsp = false;
3176 mod_base = (unsigned char*)buffer;
3180 i = SB_ReadInt (&index);
3181 if (i != MCBSPVERSION)
3182 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i)", mod->name, i, MCBSPVERSION);
3185 hullinfo.numhulls = LittleLong(*(int*)index); index += 4;
3186 hullinfo.filehulls = hullinfo.numhulls;
3187 VectorClear (hullinfo.hullsizes[0][0]);
3188 VectorClear (hullinfo.hullsizes[0][1]);
3189 for (i = 1; i < hullinfo.numhulls; i++)
3191 hullinfo.hullsizes[i][0][0] = SB_ReadFloat (&index);
3192 hullinfo.hullsizes[i][0][1] = SB_ReadFloat (&index);
3193 hullinfo.hullsizes[i][0][2] = SB_ReadFloat (&index);
3194 hullinfo.hullsizes[i][1][0] = SB_ReadFloat (&index);
3195 hullinfo.hullsizes[i][1][1] = SB_ReadFloat (&index);
3196 hullinfo.hullsizes[i][1][2] = SB_ReadFloat (&index);
3200 _header.version = 0;
3201 for (i = 0; i < HEADER_LUMPS; i++)
3203 _header.lumps[i].fileofs = SB_ReadInt (&index);
3204 _header.lumps[i].filelen = SB_ReadInt (&index);
3211 header = (dheader_t *)buffer;
3213 i = LittleLong(header->version);
3214 if (i != BSPVERSION && i != 30)
3215 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i(Quake) or 30(HalfLife)", mod->name, i, BSPVERSION);
3216 mod->brush.ishlbsp = i == 30;
3217 mod->brush.ismcbsp = false;
3219 // fill in hull info
3220 VectorClear (hullinfo.hullsizes[0][0]);
3221 VectorClear (hullinfo.hullsizes[0][1]);
3222 if (mod->brush.ishlbsp)
3224 hullinfo.numhulls = 4;
3225 hullinfo.filehulls = 4;
3226 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
3227 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
3228 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
3229 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
3230 VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
3231 VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
3235 hullinfo.numhulls = 3;
3236 hullinfo.filehulls = 4;
3237 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
3238 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
3239 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
3240 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
3244 mod_base = (unsigned char*)buffer;
3245 for (i = 0; i < HEADER_LUMPS; i++)
3247 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
3248 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
3252 mod->soundfromcenter = true;
3253 mod->TraceBox = Mod_Q1BSP_TraceBox;
3254 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3255 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3256 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
3257 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
3258 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
3259 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
3260 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
3261 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
3262 mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
3263 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
3264 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3265 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3266 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
3268 if (loadmodel->isworldmodel)
3270 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3271 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3276 // store which lightmap format to use
3277 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3279 mod->brush.qw_md4sum = 0;
3280 mod->brush.qw_md4sum2 = 0;
3281 for (i = 0;i < HEADER_LUMPS;i++)
3283 if (i == LUMP_ENTITIES)
3285 mod->brush.qw_md4sum ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3286 if (i == LUMP_VISIBILITY || i == LUMP_LEAFS || i == LUMP_NODES)
3288 mod->brush.qw_md4sum2 ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3291 Mod_Q1BSP_LoadEntities(&header->lumps[LUMP_ENTITIES]);
3292 Mod_Q1BSP_LoadVertexes(&header->lumps[LUMP_VERTEXES]);
3293 Mod_Q1BSP_LoadEdges(&header->lumps[LUMP_EDGES]);
3294 Mod_Q1BSP_LoadSurfedges(&header->lumps[LUMP_SURFEDGES]);
3295 Mod_Q1BSP_LoadTextures(&header->lumps[LUMP_TEXTURES]);
3296 Mod_Q1BSP_LoadLighting(&header->lumps[LUMP_LIGHTING]);
3297 Mod_Q1BSP_LoadPlanes(&header->lumps[LUMP_PLANES]);
3298 Mod_Q1BSP_LoadTexinfo(&header->lumps[LUMP_TEXINFO]);
3299 Mod_Q1BSP_LoadFaces(&header->lumps[LUMP_FACES]);
3300 Mod_Q1BSP_LoadLeaffaces(&header->lumps[LUMP_MARKSURFACES]);
3301 Mod_Q1BSP_LoadVisibility(&header->lumps[LUMP_VISIBILITY]);
3302 // load submodels before leafs because they contain the number of vis leafs
3303 Mod_Q1BSP_LoadSubmodels(&header->lumps[LUMP_MODELS], &hullinfo);
3304 Mod_Q1BSP_LoadLeafs(&header->lumps[LUMP_LEAFS]);
3305 Mod_Q1BSP_LoadNodes(&header->lumps[LUMP_NODES]);
3306 Mod_Q1BSP_LoadClipnodes(&header->lumps[LUMP_CLIPNODES], &hullinfo);
3308 // check if the map supports transparent water rendering
3309 loadmodel->brush.supportwateralpha = Mod_Q1BSP_CheckWaterAlphaSupport();
3311 if (!mod->brushq1.lightdata)
3312 mod->brush.LightPoint = NULL;
3314 if (mod->brushq1.data_compressedpvs)
3315 Mem_Free(mod->brushq1.data_compressedpvs);
3316 mod->brushq1.data_compressedpvs = NULL;
3317 mod->brushq1.num_compressedpvs = 0;
3319 Mod_Q1BSP_MakeHull0();
3320 Mod_Q1BSP_MakePortals();
3322 mod->numframes = 2; // regular and alternate animation
3325 mainmempool = mod->mempool;
3327 // make a single combined shadow mesh to allow optimized shadow volume creation
3328 numshadowmeshtriangles = 0;
3329 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3331 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
3332 numshadowmeshtriangles += surface->num_triangles;
3334 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
3335 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3336 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));
3337 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
3338 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
3340 if (loadmodel->brush.numsubmodels)
3341 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
3343 if (loadmodel->isworldmodel)
3345 // clear out any stale submodels or worldmodels lying around
3346 // if we did this clear before now, an error might abort loading and
3347 // leave things in a bad state
3348 Mod_RemoveStaleWorldModels(loadmodel);
3351 // LordHavoc: to clear the fog around the original quake submodel code, I
3353 // first of all, some background info on the submodels:
3354 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
3355 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
3356 // now the weird for loop itself:
3357 // the loop functions in an odd way, on each iteration it sets up the
3358 // current 'mod' model (which despite the confusing code IS the model of
3359 // the number i), at the end of the loop it duplicates the model to become
3360 // the next submodel, and loops back to set up the new submodel.
3362 // LordHavoc: now the explanation of my sane way (which works identically):
3363 // set up the world model, then on each submodel copy from the world model
3364 // and set up the submodel with the respective model info.
3365 for (i = 0;i < mod->brush.numsubmodels;i++)
3367 // LordHavoc: this code was originally at the end of this loop, but
3368 // has been transformed to something more readable at the start here.
3373 // LordHavoc: only register submodels if it is the world
3374 // (prevents external bsp models from replacing world submodels with
3376 if (!loadmodel->isworldmodel)
3378 // duplicate the basic information
3379 sprintf(name, "*%i", i);
3380 mod = Mod_FindName(name);
3381 // copy the base model to this one
3383 // rename the clone back to its proper name
3384 strlcpy(mod->name, name, sizeof(mod->name));
3385 // textures and memory belong to the main model
3386 mod->texturepool = NULL;
3387 mod->mempool = NULL;
3390 mod->brush.submodel = i;
3392 if (loadmodel->brush.submodels)
3393 loadmodel->brush.submodels[i] = mod;
3395 bm = &mod->brushq1.submodels[i];
3397 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
3398 for (j=1 ; j<MAX_MAP_HULLS ; j++)
3400 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
3401 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
3404 mod->firstmodelsurface = bm->firstface;
3405 mod->nummodelsurfaces = bm->numfaces;
3407 // make the model surface list (used by shadowing/lighting)
3408 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
3409 for (j = 0;j < mod->nummodelsurfaces;j++)
3410 mod->surfacelist[j] = mod->firstmodelsurface + j;
3412 // this gets altered below if sky is used
3413 mod->DrawSky = NULL;
3414 mod->Draw = R_Q1BSP_Draw;
3415 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
3416 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
3417 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
3418 mod->DrawLight = R_Q1BSP_DrawLight;
3421 mod->brush.GetPVS = NULL;
3422 mod->brush.FatPVS = NULL;
3423 mod->brush.BoxTouchingPVS = NULL;
3424 mod->brush.BoxTouchingLeafPVS = NULL;
3425 mod->brush.BoxTouchingVisibleLeafs = NULL;
3426 mod->brush.FindBoxClusters = NULL;
3427 mod->brush.LightPoint = NULL;
3428 mod->brush.AmbientSoundLevelsForPoint = NULL;
3430 Mod_Q1BSP_BuildLightmapUpdateChains(loadmodel->mempool, mod);
3431 if (mod->nummodelsurfaces)
3433 // LordHavoc: calculate bmodel bounding box rather than trusting what it says
3434 mod->normalmins[0] = mod->normalmins[1] = mod->normalmins[2] = 1000000000.0f;
3435 mod->normalmaxs[0] = mod->normalmaxs[1] = mod->normalmaxs[2] = -1000000000.0f;
3438 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
3440 // we only need to have a drawsky function if it is used(usually only on world model)
3441 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
3442 mod->DrawSky = R_Q1BSP_DrawSky;
3443 // calculate bounding shapes
3444 for (k = 0, vec = (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex);k < surface->num_vertices;k++, vec += 3)
3446 if (mod->normalmins[0] > vec[0]) mod->normalmins[0] = vec[0];
3447 if (mod->normalmins[1] > vec[1]) mod->normalmins[1] = vec[1];
3448 if (mod->normalmins[2] > vec[2]) mod->normalmins[2] = vec[2];
3449 if (mod->normalmaxs[0] < vec[0]) mod->normalmaxs[0] = vec[0];
3450 if (mod->normalmaxs[1] < vec[1]) mod->normalmaxs[1] = vec[1];
3451 if (mod->normalmaxs[2] < vec[2]) mod->normalmaxs[2] = vec[2];
3452 dist = vec[0]*vec[0]+vec[1]*vec[1];
3453 if (modelyawradius < dist)
3454 modelyawradius = dist;
3455 dist += vec[2]*vec[2];
3456 if (modelradius < dist)
3460 modelyawradius = sqrt(modelyawradius);
3461 modelradius = sqrt(modelradius);
3462 mod->yawmins[0] = mod->yawmins[1] = - (mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius);
3463 mod->yawmins[2] = mod->normalmins[2];
3464 mod->yawmaxs[2] = mod->normalmaxs[2];
3465 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
3466 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
3467 mod->radius = modelradius;
3468 mod->radius2 = modelradius * modelradius;
3472 // LordHavoc: empty submodel(lacrima.bsp has such a glitch)
3473 Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
3475 //mod->brushq1.num_visleafs = bm->visleafs;
3478 Mod_Q1BSP_LoadMapBrushes();
3480 //Mod_Q1BSP_ProcessLightList();
3482 if (developer.integer >= 10)
3483 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);
3486 static void Mod_Q2BSP_LoadEntities(lump_t *l)
3490 static void Mod_Q2BSP_LoadPlanes(lump_t *l)
3497 in = (void *)(mod_base + l->fileofs);
3498 if (l->filelen % sizeof(*in))
3499 Host_Error("Mod_Q2BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
3500 count = l->filelen / sizeof(*in);
3501 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3504 loadmodel->num = count;
3506 for (i = 0;i < count;i++, in++, out++)
3512 static void Mod_Q2BSP_LoadVertices(lump_t *l)
3519 in = (void *)(mod_base + l->fileofs);
3520 if (l->filelen % sizeof(*in))
3521 Host_Error("Mod_Q2BSP_LoadVertices: funny lump size in %s",loadmodel->name);
3522 count = l->filelen / sizeof(*in);
3523 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3526 loadmodel->num = count;
3528 for (i = 0;i < count;i++, in++, out++)
3534 static void Mod_Q2BSP_LoadVisibility(lump_t *l)
3541 in = (void *)(mod_base + l->fileofs);
3542 if (l->filelen % sizeof(*in))
3543 Host_Error("Mod_Q2BSP_LoadVisibility: funny lump size in %s",loadmodel->name);
3544 count = l->filelen / sizeof(*in);
3545 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3548 loadmodel->num = count;
3550 for (i = 0;i < count;i++, in++, out++)
3556 static void Mod_Q2BSP_LoadNodes(lump_t *l)
3563 in = (void *)(mod_base + l->fileofs);
3564 if (l->filelen % sizeof(*in))
3565 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
3566 count = l->filelen / sizeof(*in);
3567 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3570 loadmodel->num = count;
3572 for (i = 0;i < count;i++, in++, out++)
3578 static void Mod_Q2BSP_LoadTexInfo(lump_t *l)
3585 in = (void *)(mod_base + l->fileofs);
3586 if (l->filelen % sizeof(*in))
3587 Host_Error("Mod_Q2BSP_LoadTexInfo: funny lump size in %s",loadmodel->name);
3588 count = l->filelen / sizeof(*in);
3589 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3592 loadmodel->num = count;
3594 for (i = 0;i < count;i++, in++, out++)
3600 static void Mod_Q2BSP_LoadFaces(lump_t *l)
3607 in = (void *)(mod_base + l->fileofs);
3608 if (l->filelen % sizeof(*in))
3609 Host_Error("Mod_Q2BSP_LoadFaces: funny lump size in %s",loadmodel->name);
3610 count = l->filelen / sizeof(*in);
3611 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3614 loadmodel->num = count;
3616 for (i = 0;i < count;i++, in++, out++)
3622 static void Mod_Q2BSP_LoadLighting(lump_t *l)
3629 in = (void *)(mod_base + l->fileofs);
3630 if (l->filelen % sizeof(*in))
3631 Host_Error("Mod_Q2BSP_LoadLighting: funny lump size in %s",loadmodel->name);
3632 count = l->filelen / sizeof(*in);
3633 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3636 loadmodel->num = count;
3638 for (i = 0;i < count;i++, in++, out++)
3644 static void Mod_Q2BSP_LoadLeafs(lump_t *l)
3651 in = (void *)(mod_base + l->fileofs);
3652 if (l->filelen % sizeof(*in))
3653 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
3654 count = l->filelen / sizeof(*in);
3655 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3658 loadmodel->num = count;
3660 for (i = 0;i < count;i++, in++, out++)
3666 static void Mod_Q2BSP_LoadLeafFaces(lump_t *l)
3673 in = (void *)(mod_base + l->fileofs);
3674 if (l->filelen % sizeof(*in))
3675 Host_Error("Mod_Q2BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
3676 count = l->filelen / sizeof(*in);
3677 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3680 loadmodel->num = count;
3682 for (i = 0;i < count;i++, in++, out++)
3688 static void Mod_Q2BSP_LoadLeafBrushes(lump_t *l)
3695 in = (void *)(mod_base + l->fileofs);
3696 if (l->filelen % sizeof(*in))
3697 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
3698 count = l->filelen / sizeof(*in);
3699 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3702 loadmodel->num = count;
3704 for (i = 0;i < count;i++, in++, out++)
3710 static void Mod_Q2BSP_LoadEdges(lump_t *l)
3717 in = (void *)(mod_base + l->fileofs);
3718 if (l->filelen % sizeof(*in))
3719 Host_Error("Mod_Q2BSP_LoadEdges: funny lump size in %s",loadmodel->name);
3720 count = l->filelen / sizeof(*in);
3721 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3724 loadmodel->num = count;
3726 for (i = 0;i < count;i++, in++, out++)
3732 static void Mod_Q2BSP_LoadSurfEdges(lump_t *l)
3739 in = (void *)(mod_base + l->fileofs);
3740 if (l->filelen % sizeof(*in))
3741 Host_Error("Mod_Q2BSP_LoadSurfEdges: funny lump size in %s",loadmodel->name);
3742 count = l->filelen / sizeof(*in);
3743 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3746 loadmodel->num = count;
3748 for (i = 0;i < count;i++, in++, out++)
3754 static void Mod_Q2BSP_LoadBrushes(lump_t *l)
3761 in = (void *)(mod_base + l->fileofs);
3762 if (l->filelen % sizeof(*in))
3763 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
3764 count = l->filelen / sizeof(*in);
3765 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3768 loadmodel->num = count;
3770 for (i = 0;i < count;i++, in++, out++)
3776 static void Mod_Q2BSP_LoadBrushSides(lump_t *l)
3783 in = (void *)(mod_base + l->fileofs);
3784 if (l->filelen % sizeof(*in))
3785 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
3786 count = l->filelen / sizeof(*in);
3787 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3790 loadmodel->num = count;
3792 for (i = 0;i < count;i++, in++, out++)
3798 static void Mod_Q2BSP_LoadAreas(lump_t *l)
3805 in = (void *)(mod_base + l->fileofs);
3806 if (l->filelen % sizeof(*in))
3807 Host_Error("Mod_Q2BSP_LoadAreas: funny lump size in %s",loadmodel->name);
3808 count = l->filelen / sizeof(*in);
3809 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3812 loadmodel->num = count;
3814 for (i = 0;i < count;i++, in++, out++)
3820 static void Mod_Q2BSP_LoadAreaPortals(lump_t *l)
3827 in = (void *)(mod_base + l->fileofs);
3828 if (l->filelen % sizeof(*in))
3829 Host_Error("Mod_Q2BSP_LoadAreaPortals: funny lump size in %s",loadmodel->name);
3830 count = l->filelen / sizeof(*in);
3831 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3834 loadmodel->num = count;
3836 for (i = 0;i < count;i++, in++, out++)
3842 static void Mod_Q2BSP_LoadModels(lump_t *l)
3849 in = (void *)(mod_base + l->fileofs);
3850 if (l->filelen % sizeof(*in))
3851 Host_Error("Mod_Q2BSP_LoadModels: funny lump size in %s",loadmodel->name);
3852 count = l->filelen / sizeof(*in);
3853 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3856 loadmodel->num = count;
3858 for (i = 0;i < count;i++, in++, out++)
3864 void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
3867 q2dheader_t *header;
3869 Host_Error("Mod_Q2BSP_Load: not yet implemented");
3871 mod->type = mod_brushq2;
3873 header = (q2dheader_t *)buffer;
3875 i = LittleLong(header->version);
3876 if (i != Q2BSPVERSION)
3877 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
3878 mod->brush.ishlbsp = false;
3879 mod->brush.ismcbsp = false;
3880 if (loadmodel->isworldmodel)
3882 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3883 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3886 mod_base = (unsigned char *)header;
3888 // swap all the lumps
3889 for (i = 0;i < (int) sizeof(*header) / 4;i++)
3890 ((int *)header)[i] = LittleLong(((int *)header)[i]);
3892 // store which lightmap format to use
3893 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3895 mod->brush.qw_md4sum = 0;
3896 mod->brush.qw_md4sum2 = 0;
3897 for (i = 0;i < Q2HEADER_LUMPS;i++)
3899 if (i == Q2LUMP_ENTITIES)
3901 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
3902 if (i == Q2LUMP_VISIBILITY || i == Q2LUMP_LEAFS || i == Q2LUMP_NODES)
3904 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
3907 Mod_Q2BSP_LoadEntities(&header->lumps[Q2LUMP_ENTITIES]);
3908 Mod_Q2BSP_LoadPlanes(&header->lumps[Q2LUMP_PLANES]);
3909 Mod_Q2BSP_LoadVertices(&header->lumps[Q2LUMP_VERTEXES]);
3910 Mod_Q2BSP_LoadVisibility(&header->lumps[Q2LUMP_VISIBILITY]);
3911 Mod_Q2BSP_LoadNodes(&header->lumps[Q2LUMP_NODES]);
3912 Mod_Q2BSP_LoadTexInfo(&header->lumps[Q2LUMP_TEXINFO]);
3913 Mod_Q2BSP_LoadFaces(&header->lumps[Q2LUMP_FACES]);
3914 Mod_Q2BSP_LoadLighting(&header->lumps[Q2LUMP_LIGHTING]);
3915 Mod_Q2BSP_LoadLeafs(&header->lumps[Q2LUMP_LEAFS]);
3916 Mod_Q2BSP_LoadLeafFaces(&header->lumps[Q2LUMP_LEAFFACES]);
3917 Mod_Q2BSP_LoadLeafBrushes(&header->lumps[Q2LUMP_LEAFBRUSHES]);
3918 Mod_Q2BSP_LoadEdges(&header->lumps[Q2LUMP_EDGES]);
3919 Mod_Q2BSP_LoadSurfEdges(&header->lumps[Q2LUMP_SURFEDGES]);
3920 Mod_Q2BSP_LoadBrushes(&header->lumps[Q2LUMP_BRUSHES]);
3921 Mod_Q2BSP_LoadBrushSides(&header->lumps[Q2LUMP_BRUSHSIDES]);
3922 Mod_Q2BSP_LoadAreas(&header->lumps[Q2LUMP_AREAS]);
3923 Mod_Q2BSP_LoadAreaPortals(&header->lumps[Q2LUMP_AREAPORTALS]);
3924 // LordHavoc: must go last because this makes the submodels
3925 Mod_Q2BSP_LoadModels(&header->lumps[Q2LUMP_MODELS]);
3928 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents);
3929 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents);
3931 static void Mod_Q3BSP_LoadEntities(lump_t *l)
3934 char key[128], value[MAX_INPUTLINE];
3936 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
3937 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
3938 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
3941 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
3942 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
3943 data = loadmodel->brush.entities;
3944 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
3945 if (data && COM_ParseTokenConsole(&data) && com_token[0] == '{')
3949 if (!COM_ParseTokenConsole(&data))
3951 if (com_token[0] == '}')
3952 break; // end of worldspawn
3953 if (com_token[0] == '_')
3954 strlcpy(key, com_token + 1, sizeof(key));
3956 strlcpy(key, com_token, sizeof(key));
3957 while (key[strlen(key)-1] == ' ') // remove trailing spaces
3958 key[strlen(key)-1] = 0;
3959 if (!COM_ParseTokenConsole(&data))
3961 strlcpy(value, com_token, sizeof(value));
3962 if (!strcmp("gridsize", key))
3964 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
3965 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
3971 // FIXME: make MAXSHADERS dynamic
3972 #define Q3SHADER_MAXSHADERS 4096
3973 #define Q3SHADER_MAXLAYERS 8
3975 typedef struct q3shaderinfo_layer_s
3981 char texturename[TEXTURE_MAXFRAMES][Q3PATHLENGTH];
3983 qboolean rgbgenvertex;
3984 qboolean alphagenvertex;
3986 q3shaderinfo_layer_t;
3988 typedef struct q3shaderinfo_s
3990 char name[Q3PATHLENGTH];
3995 qboolean vertexalpha;
3996 qboolean textureblendalpha;
3997 q3shaderinfo_layer_t *primarylayer, *backgroundlayer;
3998 q3shaderinfo_layer_t layers[Q3SHADER_MAXLAYERS];
3999 char skyboxname[Q3PATHLENGTH];
4003 int q3shaders_numshaders;
4004 q3shaderinfo_t q3shaders_shaders[Q3SHADER_MAXSHADERS];
4006 static void Mod_Q3BSP_LoadShaders(void)
4013 q3shaderinfo_t *shader;
4014 q3shaderinfo_layer_t *layer;
4016 char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
4017 search = FS_Search("scripts/*.shader", true, false);
4020 q3shaders_numshaders = 0;
4021 for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
4023 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
4026 while (COM_ParseToken(&text, false))
4028 if (q3shaders_numshaders >= Q3SHADER_MAXSHADERS)
4030 Con_Printf("Mod_Q3BSP_LoadShaders: too many shaders!\n");
4033 shader = q3shaders_shaders + q3shaders_numshaders++;
4034 memset(shader, 0, sizeof(*shader));
4035 strlcpy(shader->name, com_token, sizeof(shader->name));
4036 if (!COM_ParseToken(&text, false) || strcasecmp(com_token, "{"))
4038 Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
4041 while (COM_ParseToken(&text, false))
4043 if (!strcasecmp(com_token, "}"))
4045 if (!strcasecmp(com_token, "{"))
4047 if (shader->numlayers < Q3SHADER_MAXLAYERS)
4049 layer = shader->layers + shader->numlayers++;
4050 layer->rgbgenvertex = false;
4051 layer->alphagenvertex = false;
4052 layer->blendfunc[0] = GL_ONE;
4053 layer->blendfunc[1] = GL_ZERO;
4057 while (COM_ParseToken(&text, false))
4059 if (!strcasecmp(com_token, "}"))
4061 if (!strcasecmp(com_token, "\n"))
4066 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
4068 if (j < TEXTURE_MAXFRAMES + 4)
4070 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
4071 numparameters = j + 1;
4073 if (!COM_ParseToken(&text, true))
4076 if (developer.integer >= 100)
4078 Con_Printf("%s %i: ", shader->name, shader->numlayers - 1);
4079 for (j = 0;j < numparameters;j++)
4080 Con_Printf(" %s", parameter[j]);
4083 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
4085 if (numparameters == 2)
4087 if (!strcasecmp(parameter[1], "add"))
4089 layer->blendfunc[0] = GL_ONE;
4090 layer->blendfunc[1] = GL_ONE;
4092 else if (!strcasecmp(parameter[1], "filter"))
4094 layer->blendfunc[0] = GL_DST_COLOR;
4095 layer->blendfunc[1] = GL_ZERO;
4097 else if (!strcasecmp(parameter[1], "blend"))
4099 layer->blendfunc[0] = GL_SRC_ALPHA;
4100 layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
4103 else if (numparameters == 3)
4106 for (k = 0;k < 2;k++)
4108 if (!strcasecmp(parameter[k+1], "GL_ONE"))
4109 layer->blendfunc[k] = GL_ONE;
4110 else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
4111 layer->blendfunc[k] = GL_ZERO;
4112 else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
4113 layer->blendfunc[k] = GL_SRC_COLOR;
4114 else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
4115 layer->blendfunc[k] = GL_SRC_ALPHA;
4116 else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
4117 layer->blendfunc[k] = GL_DST_COLOR;
4118 else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
4119 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
4120 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
4121 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
4122 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
4123 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
4124 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
4125 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
4126 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
4127 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
4129 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
4133 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
4134 layer->alphatest = true;
4135 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
4137 if (!strcasecmp(parameter[0], "clampmap"))
4138 layer->clampmap = true;
4139 layer->numframes = 1;
4140 layer->framerate = 1;
4141 strlcpy(layer->texturename[0], parameter[1], sizeof(layer->texturename));
4142 if (!strcasecmp(parameter[1], "$lightmap"))
4143 shader->lighting = true;
4145 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
4148 layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
4149 layer->framerate = atoi(parameter[1]);
4150 for (i = 0;i < layer->numframes;i++)
4151 strlcpy(layer->texturename[i], parameter[i + 2], sizeof(layer->texturename));
4153 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen") && !strcasecmp(parameter[1], "vertex"))
4154 layer->rgbgenvertex = true;
4155 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen") && !strcasecmp(parameter[1], "vertex"))
4156 layer->alphagenvertex = true;
4157 // break out a level if it was }
4158 if (!strcasecmp(com_token, "}"))
4161 if (layer->rgbgenvertex)
4162 shader->lighting = true;
4163 if (layer->alphagenvertex)
4165 if (layer == shader->layers + 0)
4167 // vertex controlled transparency
4168 shader->vertexalpha = true;
4172 // multilayer terrain shader or similar
4173 shader->textureblendalpha = true;
4179 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
4181 if (j < TEXTURE_MAXFRAMES + 4)
4183 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
4184 numparameters = j + 1;
4186 if (!COM_ParseToken(&text, true))
4189 if (fileindex == 0 && !strcasecmp(com_token, "}"))
4191 if (developer.integer >= 100)
4193 Con_Printf("%s: ", shader->name);
4194 for (j = 0;j < numparameters;j++)
4195 Con_Printf(" %s", parameter[j]);
4198 if (numparameters < 1)
4200 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
4202 if (!strcasecmp(parameter[1], "alphashadow"))
4203 shader->surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
4204 else if (!strcasecmp(parameter[1], "areaportal"))
4205 shader->surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
4206 else if (!strcasecmp(parameter[1], "botclip"))
4207 shader->surfaceparms |= Q3SURFACEPARM_BOTCLIP;
4208 else if (!strcasecmp(parameter[1], "clusterportal"))
4209 shader->surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
4210 else if (!strcasecmp(parameter[1], "detail"))
4211 shader->surfaceparms |= Q3SURFACEPARM_DETAIL;
4212 else if (!strcasecmp(parameter[1], "donotenter"))
4213 shader->surfaceparms |= Q3SURFACEPARM_DONOTENTER;
4214 else if (!strcasecmp(parameter[1], "dust"))
4215 shader->surfaceparms |= Q3SURFACEPARM_DUST;
4216 else if (!strcasecmp(parameter[1], "hint"))
4217 shader->surfaceparms |= Q3SURFACEPARM_HINT;
4218 else if (!strcasecmp(parameter[1], "fog"))
4219 shader->surfaceparms |= Q3SURFACEPARM_FOG;
4220 else if (!strcasecmp(parameter[1], "lava"))
4221 shader->surfaceparms |= Q3SURFACEPARM_LAVA;
4222 else if (!strcasecmp(parameter[1], "lightfilter"))
4223 shader->surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
4224 else if (!strcasecmp(parameter[1], "lightgrid"))
4225 shader->surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
4226 else if (!strcasecmp(parameter[1], "metalsteps"))
4227 shader->surfaceparms |= Q3SURFACEPARM_METALSTEPS;
4228 else if (!strcasecmp(parameter[1], "nodamage"))
4229 shader->surfaceparms |= Q3SURFACEPARM_NODAMAGE;
4230 else if (!strcasecmp(parameter[1], "nodlight"))
4231 shader->surfaceparms |= Q3SURFACEPARM_NODLIGHT;
4232 else if (!strcasecmp(parameter[1], "nodraw"))
4233 shader->surfaceparms |= Q3SURFACEPARM_NODRAW;
4234 else if (!strcasecmp(parameter[1], "nodrop"))
4235 shader->surfaceparms |= Q3SURFACEPARM_NODROP;
4236 else if (!strcasecmp(parameter[1], "noimpact"))
4237 shader->surfaceparms |= Q3SURFACEPARM_NOIMPACT;
4238 else if (!strcasecmp(parameter[1], "nolightmap"))
4239 shader->surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
4240 else if (!strcasecmp(parameter[1], "nomarks"))
4241 shader->surfaceparms |= Q3SURFACEPARM_NOMARKS;
4242 else if (!strcasecmp(parameter[1], "nomipmaps"))
4243 shader->surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
4244 else if (!strcasecmp(parameter[1], "nonsolid"))
4245 shader->surfaceparms |= Q3SURFACEPARM_NONSOLID;
4246 else if (!strcasecmp(parameter[1], "origin"))
4247 shader->surfaceparms |= Q3SURFACEPARM_ORIGIN;
4248 else if (!strcasecmp(parameter[1], "playerclip"))
4249 shader->surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
4250 else if (!strcasecmp(parameter[1], "sky"))
4251 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4252 else if (!strcasecmp(parameter[1], "slick"))
4253 shader->surfaceparms |= Q3SURFACEPARM_SLICK;
4254 else if (!strcasecmp(parameter[1], "slime"))
4255 shader->surfaceparms |= Q3SURFACEPARM_SLIME;
4256 else if (!strcasecmp(parameter[1], "structural"))
4257 shader->surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
4258 else if (!strcasecmp(parameter[1], "trans"))
4259 shader->surfaceparms |= Q3SURFACEPARM_TRANS;
4260 else if (!strcasecmp(parameter[1], "water"))
4261 shader->surfaceparms |= Q3SURFACEPARM_WATER;
4262 else if (!strcasecmp(parameter[1], "pointlight"))
4263 shader->surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
4265 Con_Printf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
4267 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
4269 // some q3 skies don't have the sky parm set
4270 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4271 strlcpy(shader->skyboxname, parameter[1], sizeof(shader->skyboxname));
4273 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
4275 // some q3 skies don't have the sky parm set
4276 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4277 if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
4278 strlcpy(shader->skyboxname, parameter[1], sizeof(shader->skyboxname));
4280 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
4282 if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
4283 shader->textureflags |= Q3TEXTUREFLAG_TWOSIDED;
4285 else if (!strcasecmp(parameter[0], "nomipmaps"))
4286 shader->surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
4287 else if (!strcasecmp(parameter[0], "nopicmip"))
4288 shader->textureflags |= Q3TEXTUREFLAG_NOPICMIP;
4289 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
4291 if (!strcasecmp(parameter[1], "autosprite") && numparameters == 2)
4292 shader->textureflags |= Q3TEXTUREFLAG_AUTOSPRITE;
4293 if (!strcasecmp(parameter[1], "autosprite2") && numparameters == 2)
4294 shader->textureflags |= Q3TEXTUREFLAG_AUTOSPRITE2;
4297 // identify if this is a blended terrain shader or similar
4298 if (shader->numlayers)
4300 shader->primarylayer = shader->layers + 0;
4301 if ((shader->layers[1].blendfunc[0] == GL_SRC_ALPHA && shader->layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA) || shader->layers[1].alphatest)
4303 // terrain blending or other effects
4304 shader->backgroundlayer = shader->layers + 0;
4305 shader->primarylayer = shader->layers + 1;
4307 // now see if the lightmap came first, and if so choose the second texture instead
4308 if (!strcasecmp(shader->primarylayer->texturename[0], "$lightmap"))
4309 shader->primarylayer = shader->layers + 1;
4316 q3shaderinfo_t *Mod_Q3BSP_LookupShader(const char *name)
4319 for (i = 0;i < Q3SHADER_MAXSHADERS;i++)
4320 if (!strcasecmp(q3shaders_shaders[i].name, name))
4321 return q3shaders_shaders + i;
4325 static void Mod_Q3BSP_LoadTextures(lump_t *l)
4331 in = (q3dtexture_t *)(mod_base + l->fileofs);
4332 if (l->filelen % sizeof(*in))
4333 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
4334 count = l->filelen / sizeof(*in);
4335 out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4337 loadmodel->data_textures = out;
4338 loadmodel->num_textures = count;
4340 // parse the Q3 shader files
4341 Mod_Q3BSP_LoadShaders();
4344 for (i = 0;i < count;i++, in++, out++)
4346 q3shaderinfo_t *shader;
4347 strlcpy (out->name, in->name, sizeof (out->name));
4348 out->surfaceflags = LittleLong(in->surfaceflags);
4349 out->supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in->contents));
4350 shader = Mod_Q3BSP_LookupShader(out->name);
4353 out->surfaceparms = shader->surfaceparms;
4354 out->textureflags = shader->textureflags;
4355 out->basematerialflags = 0;
4356 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
4358 out->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
4359 if (shader->skyboxname[0])
4361 // quake3 seems to append a _ to the skybox name, so this must do so as well
4362 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
4365 else if ((out->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
4366 out->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
4367 else if (shader->surfaceparms & Q3SURFACEPARM_LAVA)
4368 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_NOSHADOW;
4369 else if (shader->surfaceparms & Q3SURFACEPARM_SLIME)
4370 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_WATERALPHA | MATERIALFLAG_NOSHADOW;
4371 else if (shader->surfaceparms & Q3SURFACEPARM_WATER)
4372 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_WATERALPHA | MATERIALFLAG_NOSHADOW;
4374 out->basematerialflags |= MATERIALFLAG_WALL;
4375 if (shader->layers[0].alphatest)
4376 out->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_NOSHADOW;
4377 if (shader->textureflags & (Q3TEXTUREFLAG_TWOSIDED | Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2))
4378 out->basematerialflags |= MATERIALFLAG_NOSHADOW;
4379 out->customblendfunc[0] = GL_ONE;
4380 out->customblendfunc[1] = GL_ZERO;
4381 if (shader->numlayers > 0)
4383 out->customblendfunc[0] = shader->layers[0].blendfunc[0];
4384 out->customblendfunc[1] = shader->layers[0].blendfunc[1];
4386 Q3 shader blendfuncs actually used in the game (* = supported by DP)
4387 * additive GL_ONE GL_ONE
4388 additive weird GL_ONE GL_SRC_ALPHA
4389 additive weird 2 GL_ONE GL_ONE_MINUS_SRC_ALPHA
4390 * alpha GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
4391 alpha inverse GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
4392 brighten GL_DST_COLOR GL_ONE
4393 brighten GL_ONE GL_SRC_COLOR
4394 brighten weird GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
4395 brighten weird 2 GL_DST_COLOR GL_SRC_ALPHA
4396 * modulate GL_DST_COLOR GL_ZERO
4397 * modulate GL_ZERO GL_SRC_COLOR
4398 modulate inverse GL_ZERO GL_ONE_MINUS_SRC_COLOR
4399 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
4400 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
4401 * modulate x2 GL_DST_COLOR GL_SRC_COLOR
4402 * no blend GL_ONE GL_ZERO
4403 nothing GL_ZERO GL_ONE
4405 // if not opaque, figure out what blendfunc to use
4406 if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
4408 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
4409 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_NOSHADOW;
4410 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
4411 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_NOSHADOW;
4412 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
4413 out->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_NOSHADOW;
4415 out->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT | MATERIALFLAG_NOSHADOW;
4418 if (!shader->lighting)
4419 out->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
4420 if (shader->primarylayer && cls.state != ca_dedicated)
4423 out->numskinframes = shader->primarylayer->numframes;
4424 out->skinframerate = shader->primarylayer->framerate;
4425 for (j = 0;j < shader->primarylayer->numframes;j++)
4426 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))
4427 Con_Printf("%s: could not load texture \"%s\" (frame %i) for shader \"%s\"\n", loadmodel->name, shader->primarylayer->texturename[j], j, out->name);
4429 if (shader->backgroundlayer && cls.state != ca_dedicated)
4432 out->backgroundnumskinframes = shader->backgroundlayer->numframes;
4433 out->backgroundskinframerate = shader->backgroundlayer->framerate;
4434 for (j = 0;j < shader->backgroundlayer->numframes;j++)
4435 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))
4436 Con_Printf("%s: could not load texture \"%s\" (frame %i) for shader \"%s\"\n", loadmodel->name, shader->backgroundlayer->texturename[j], j, out->name);
4442 Con_DPrintf("%s: No shader found for texture \"%s\"\n", loadmodel->name, out->name);
4443 out->surfaceparms = 0;
4444 if (out->surfaceflags & Q3SURFACEFLAG_NODRAW)
4445 out->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
4446 else if (out->surfaceflags & Q3SURFACEFLAG_SKY)
4447 out->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
4449 out->basematerialflags |= MATERIALFLAG_WALL;
4450 // these are defaults
4451 //if (!strncmp(out->name, "textures/skies/", 15))
4452 // out->surfaceparms |= Q3SURFACEPARM_SKY;
4453 //if (!strcmp(out->name, "caulk") || !strcmp(out->name, "common/caulk") || !strcmp(out->name, "textures/common/caulk")
4454 // || !strcmp(out->name, "nodraw") || !strcmp(out->name, "common/nodraw") || !strcmp(out->name, "textures/common/nodraw"))
4455 // out->surfaceparms |= Q3SURFACEPARM_NODRAW;
4456 //if (R_TextureHasAlpha(out->skinframes[0].base))
4457 // out->surfaceparms |= Q3SURFACEPARM_TRANS;
4458 if (cls.state != ca_dedicated)
4459 if (!Mod_LoadSkinFrame(&out->skinframes[0], out->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, true))
4460 Con_Printf("%s: could not load texture for missing shader \"%s\"\n", loadmodel->name, out->name);
4462 // init the animation variables
4463 out->currentframe = out;
4464 out->currentskinframe = &out->skinframes[0];
4465 out->backgroundcurrentskinframe = &out->backgroundskinframes[0];
4468 Con_DPrintf("%s: %i textures missing shaders\n", loadmodel->name, c);
4471 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
4477 in = (q3dplane_t *)(mod_base + l->fileofs);
4478 if (l->filelen % sizeof(*in))
4479 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
4480 count = l->filelen / sizeof(*in);
4481 out = (mplane_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4483 loadmodel->brush.data_planes = out;
4484 loadmodel->brush.num_planes = count;
4486 for (i = 0;i < count;i++, in++, out++)
4488 out->normal[0] = LittleFloat(in->normal[0]);
4489 out->normal[1] = LittleFloat(in->normal[1]);
4490 out->normal[2] = LittleFloat(in->normal[2]);
4491 out->dist = LittleFloat(in->dist);
4496 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
4499 q3mbrushside_t *out;
4502 in = (q3dbrushside_t *)(mod_base + l->fileofs);
4503 if (l->filelen % sizeof(*in))
4504 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4505 count = l->filelen / sizeof(*in);
4506 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4508 loadmodel->brush.data_brushsides = out;
4509 loadmodel->brush.num_brushsides = count;
4511 for (i = 0;i < count;i++, in++, out++)
4513 n = LittleLong(in->planeindex);
4514 if (n < 0 || n >= loadmodel->brush.num_planes)
4515 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
4516 out->plane = loadmodel->brush.data_planes + n;
4517 n = LittleLong(in->textureindex);
4518 if (n < 0 || n >= loadmodel->num_textures)
4519 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4520 out->texture = loadmodel->data_textures + n;
4524 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
4528 int i, j, n, c, count, maxplanes;
4529 colplanef_t *planes;
4531 in = (q3dbrush_t *)(mod_base + l->fileofs);
4532 if (l->filelen % sizeof(*in))
4533 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4534 count = l->filelen / sizeof(*in);
4535 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4537 loadmodel->brush.data_brushes = out;
4538 loadmodel->brush.num_brushes = count;
4543 for (i = 0;i < count;i++, in++, out++)
4545 n = LittleLong(in->firstbrushside);
4546 c = LittleLong(in->numbrushsides);
4547 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
4548 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", n, n + c, loadmodel->brush.num_brushsides);
4549 out->firstbrushside = loadmodel->brush.data_brushsides + n;
4550 out->numbrushsides = c;
4551 n = LittleLong(in->textureindex);
4552 if (n < 0 || n >= loadmodel->num_textures)
4553 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4554 out->texture = loadmodel->data_textures + n;
4556 // make a list of mplane_t structs to construct a colbrush from
4557 if (maxplanes < out->numbrushsides)
4559 maxplanes = out->numbrushsides;
4562 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
4564 for (j = 0;j < out->numbrushsides;j++)
4566 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4567 planes[j].dist = out->firstbrushside[j].plane->dist;
4568 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
4569 planes[j].texture = out->firstbrushside[j].texture;
4571 // make the colbrush from the planes
4572 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents);
4578 static void Mod_Q3BSP_LoadEffects(lump_t *l)
4584 in = (q3deffect_t *)(mod_base + l->fileofs);
4585 if (l->filelen % sizeof(*in))
4586 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
4587 count = l->filelen / sizeof(*in);
4588 out = (q3deffect_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4590 loadmodel->brushq3.data_effects = out;
4591 loadmodel->brushq3.num_effects = count;
4593 for (i = 0;i < count;i++, in++, out++)
4595 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
4596 n = LittleLong(in->brushindex);
4597 if (n >= loadmodel->brush.num_brushes)
4599 Con_Printf("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes), setting to -1\n", n, loadmodel->brush.num_brushes);
4602 out->brushindex = n;
4603 out->unknown = LittleLong(in->unknown);
4607 static void Mod_Q3BSP_LoadVertices(lump_t *l)
4612 in = (q3dvertex_t *)(mod_base + l->fileofs);
4613 if (l->filelen % sizeof(*in))
4614 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
4615 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
4616 loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 3 + 2 + 2 + 4)));
4617 loadmodel->brushq3.data_normal3f = loadmodel->brushq3.data_vertex3f + count * 3;
4618 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_normal3f + count * 3;
4619 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
4620 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
4622 for (i = 0;i < count;i++, in++)
4624 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
4625 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
4626 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
4627 loadmodel->brushq3.data_normal3f[i * 3 + 0] = LittleFloat(in->normal3f[0]);
4628 loadmodel->brushq3.data_normal3f[i * 3 + 1] = LittleFloat(in->normal3f[1]);
4629 loadmodel->brushq3.data_normal3f[i * 3 + 2] = LittleFloat(in->normal3f[2]);
4630 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
4631 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
4632 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
4633 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
4634 // svector/tvector are calculated later in face loading
4635 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
4636 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
4637 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
4638 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
4642 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
4648 in = (int *)(mod_base + l->fileofs);
4649 if (l->filelen % sizeof(int[3]))
4650 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
4651 count = l->filelen / sizeof(*in);
4652 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4654 loadmodel->brushq3.num_triangles = count / 3;
4655 loadmodel->brushq3.data_element3i = out;
4657 for (i = 0;i < count;i++, in++, out++)
4659 *out = LittleLong(*in);
4660 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
4662 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
4668 static void Mod_Q3BSP_LoadLightmaps(lump_t *l)
4677 in = (q3dlightmap_t *)(mod_base + l->fileofs);
4678 if (l->filelen % sizeof(*in))
4679 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
4680 count = l->filelen / sizeof(*in);
4681 out = (rtexture_t **)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4683 loadmodel->brushq3.data_lightmaps = out;
4684 loadmodel->brushq3.num_lightmaps = count;
4686 // deluxemapped q3bsp files have an even number of lightmaps, and surfaces
4687 // always index even numbered ones (0, 2, 4, ...), the odd numbered
4688 // lightmaps are the deluxemaps (light direction textures), so if we
4689 // encounter any odd numbered lightmaps it is not a deluxemapped bsp, it
4690 // is also not a deluxemapped bsp if it has an odd number of lightmaps or
4692 loadmodel->brushq3.deluxemapping = true;
4693 loadmodel->brushq3.deluxemapping_modelspace = true;
4694 if (count < 2 || (count & 1))
4695 loadmodel->brushq3.deluxemapping = false;
4697 // q3map2 sometimes (or always?) makes a second blank lightmap for no
4698 // reason when only one lightmap is used, which can throw off the
4699 // deluxemapping detection method, so check 2-lightmap bsp's specifically
4700 // to see if the second lightmap is blank, if so it is not deluxemapped.
4703 c = in[count - 1].rgb;
4704 for (i = 0;i < 128*128*3;i++)
4709 // all pixels in the unused lightmap were black...
4710 loadmodel->brushq3.deluxemapping = false;
4714 // further deluxemapping detection is done in Mod_Q3BSP_LoadFaces
4716 for (i = 0;i < count;i++, in++, out++)
4717 *out = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", i), 128, 128, in->rgb, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
4720 static void Mod_Q3BSP_LoadFaces(lump_t *l)
4722 q3dface_t *in, *oldin;
4723 msurface_t *out, *oldout;
4724 int i, oldi, j, n, count, invalidelements, patchsize[2], finalwidth, finalheight, xtess, ytess, finalvertices, finaltriangles, firstvertex, firstelement, type, oldnumtriangles, oldnumtriangles2, meshvertices, meshtriangles, numvertices, numtriangles;
4725 //int *originalelement3i;
4726 //int *originalneighbor3i;
4727 float *originalvertex3f;
4728 //float *originalsvector3f;
4729 //float *originaltvector3f;
4730 float *originalnormal3f;
4731 float *originalcolor4f;
4732 float *originaltexcoordtexture2f;
4733 float *originaltexcoordlightmap2f;
4736 in = (q3dface_t *)(mod_base + l->fileofs);
4737 if (l->filelen % sizeof(*in))
4738 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
4739 count = l->filelen / sizeof(*in);
4740 out = (msurface_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4742 loadmodel->data_surfaces = out;
4743 loadmodel->num_surfaces = count;
4745 // 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
4746 if (loadmodel->brushq3.deluxemapping)
4748 for (i = 0;i < count;i++)
4750 n = LittleLong(in[i].lightmapindex);
4751 if (n >= 0 && ((n & 1) || n + 1 >= loadmodel->brushq3.num_lightmaps))
4753 loadmodel->brushq3.deluxemapping = false;
4758 Con_DPrintf("%s is %sdeluxemapped\n", loadmodel->name, loadmodel->brushq3.deluxemapping ? "" : "not ");
4766 for (;i < count;i++, in++, out++)
4768 // check face type first
4769 type = LittleLong(in->type);
4770 if (type != Q3FACETYPE_POLYGON
4771 && type != Q3FACETYPE_PATCH
4772 && type != Q3FACETYPE_MESH
4773 && type != Q3FACETYPE_FLARE)
4775 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
4779 n = LittleLong(in->textureindex);
4780 if (n < 0 || n >= loadmodel->num_textures)
4782 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
4785 out->texture = loadmodel->data_textures + n;
4786 n = LittleLong(in->effectindex);
4787 if (n < -1 || n >= loadmodel->brushq3.num_effects)
4789 if (developer.integer >= 100)
4790 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
4796 out->effect = loadmodel->brushq3.data_effects + n;
4797 n = LittleLong(in->lightmapindex);
4798 if (n >= loadmodel->brushq3.num_lightmaps)
4800 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_lightmaps);
4807 out->lightmaptexture = NULL;
4808 out->deluxemaptexture = r_texture_blanknormalmap;
4812 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n];
4813 if (loadmodel->brushq3.deluxemapping)
4814 out->deluxemaptexture = loadmodel->brushq3.data_lightmaps[n+1];
4816 out->deluxemaptexture = r_texture_blanknormalmap;
4819 firstvertex = LittleLong(in->firstvertex);
4820 numvertices = LittleLong(in->numvertices);
4821 firstelement = LittleLong(in->firstelement);
4822 numtriangles = LittleLong(in->numelements) / 3;
4823 if (numtriangles * 3 != LittleLong(in->numelements))
4825 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));
4828 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
4830 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);
4833 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
4835 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);
4840 case Q3FACETYPE_POLYGON:
4841 case Q3FACETYPE_MESH:
4842 // no processing necessary
4844 case Q3FACETYPE_PATCH:
4845 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4846 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4847 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))
4849 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
4852 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4853 // convert patch to Q3FACETYPE_MESH
4854 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4855 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4856 // bound to user settings
4857 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4858 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4859 // bound to sanity settings
4860 xtess = bound(1, xtess, 1024);
4861 ytess = bound(1, ytess, 1024);
4862 // bound to user limit on vertices
4863 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4870 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4871 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4872 numvertices = finalwidth * finalheight;
4873 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4875 case Q3FACETYPE_FLARE:
4876 if (developer.integer >= 100)
4877 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
4881 out->num_vertices = numvertices;
4882 out->num_triangles = numtriangles;
4883 meshvertices += out->num_vertices;
4884 meshtriangles += out->num_triangles;
4890 Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true, false);
4893 for (;i < count && meshvertices + out->num_vertices <= loadmodel->surfmesh.num_vertices;i++, in++, out++)
4895 if (out->num_vertices < 3 || out->num_triangles < 1)
4898 type = LittleLong(in->type);
4899 firstvertex = LittleLong(in->firstvertex);
4900 firstelement = LittleLong(in->firstelement);
4901 out->num_firstvertex = meshvertices;
4902 out->num_firsttriangle = meshtriangles;
4905 case Q3FACETYPE_POLYGON:
4906 case Q3FACETYPE_MESH:
4907 // no processing necessary
4908 for (j = 0;j < out->num_vertices;j++)
4910 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
4911 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
4912 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
4913 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 0];
4914 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 1];
4915 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 2];
4916 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
4917 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
4918 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
4919 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
4920 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
4921 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
4922 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
4923 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
4925 for (j = 0;j < out->num_triangles*3;j++)
4926 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
4928 case Q3FACETYPE_PATCH:
4929 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
4930 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
4931 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
4932 originalnormal3f = loadmodel->brushq3.data_normal3f + firstvertex * 3;
4933 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
4934 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
4935 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
4936 // convert patch to Q3FACETYPE_MESH
4937 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4938 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
4939 // bound to user settings
4940 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
4941 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
4942 // bound to sanity settings
4943 xtess = bound(1, xtess, 1024);
4944 ytess = bound(1, ytess, 1024);
4945 // bound to user limit on vertices
4946 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
4953 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4954 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4955 finalvertices = finalwidth * finalheight;
4956 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4957 type = Q3FACETYPE_MESH;
4958 // generate geometry
4959 // (note: normals are skipped because they get recalculated)
4960 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
4961 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalnormal3f, xtess, ytess);
4962 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
4963 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
4964 Q3PatchTesselateFloat(4, sizeof(float[4]), (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
4965 Q3PatchTriangleElements((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
4966 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);
4967 if (developer.integer >= 100)
4969 if (out->num_triangles < finaltriangles)
4970 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);
4972 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);
4974 // q3map does not put in collision brushes for curves... ugh
4975 // build the lower quality collision geometry
4976 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4977 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
4978 // bound to user settings
4979 xtess = bound(r_subdivisions_collision_mintess.integer, xtess, r_subdivisions_collision_maxtess.integer);
4980 ytess = bound(r_subdivisions_collision_mintess.integer, ytess, r_subdivisions_collision_maxtess.integer);
4981 // bound to sanity settings
4982 xtess = bound(1, xtess, 1024);
4983 ytess = bound(1, ytess, 1024);
4984 // bound to user limit on vertices
4985 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_collision_maxvertices.integer, 262144))
4992 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
4993 finalheight = ((patchsize[1] - 1) * ytess) + 1;
4994 finalvertices = finalwidth * finalheight;
4995 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
4997 out->data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
4998 out->data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
4999 out->num_collisionvertices = finalvertices;
5000 out->num_collisiontriangles = finaltriangles;
5001 Q3PatchTesselateFloat(3, sizeof(float[3]), out->data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
5002 Q3PatchTriangleElements(out->data_collisionelement3i, finalwidth, finalheight, 0);
5004 //Mod_SnapVertices(3, out->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), 0.25);
5005 Mod_SnapVertices(3, out->num_collisionvertices, out->data_collisionvertex3f, 1);
5007 oldnumtriangles = out->num_triangles;
5008 oldnumtriangles2 = out->num_collisiontriangles;
5009 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(out->num_collisiontriangles, out->data_collisionelement3i, out->data_collisionelement3i, out->data_collisionvertex3f);
5010 if (developer.integer >= 100)
5011 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);
5016 meshvertices += out->num_vertices;
5017 meshtriangles += out->num_triangles;
5018 for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
5019 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)
5021 if (invalidelements)
5023 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);
5024 for (j = 0;j < out->num_triangles * 3;j++)
5026 Con_Printf(" %i", (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
5027 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)
5028 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
5032 // calculate a bounding box
5033 VectorClear(out->mins);
5034 VectorClear(out->maxs);
5035 if (out->num_vertices)
5037 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->mins);
5038 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->maxs);
5039 for (j = 1, v = (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
5041 out->mins[0] = min(out->mins[0], v[0]);
5042 out->maxs[0] = max(out->maxs[0], v[0]);
5043 out->mins[1] = min(out->mins[1], v[1]);
5044 out->maxs[1] = max(out->maxs[1], v[1]);
5045 out->mins[2] = min(out->mins[2], v[2]);
5046 out->maxs[2] = max(out->maxs[2], v[2]);
5048 out->mins[0] -= 1.0f;
5049 out->mins[1] -= 1.0f;
5050 out->mins[2] -= 1.0f;
5051 out->maxs[0] += 1.0f;
5052 out->maxs[1] += 1.0f;
5053 out->maxs[2] += 1.0f;
5055 // set lightmap styles for consistency with q1bsp
5056 //out->lightmapinfo->styles[0] = 0;
5057 //out->lightmapinfo->styles[1] = 255;
5058 //out->lightmapinfo->styles[2] = 255;
5059 //out->lightmapinfo->styles[3] = 255;
5062 // for per pixel lighting
5063 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);
5065 // free the no longer needed vertex data
5066 loadmodel->brushq3.num_vertices = 0;
5067 if (loadmodel->brushq3.data_vertex3f)
5068 Mem_Free(loadmodel->brushq3.data_vertex3f);
5069 loadmodel->brushq3.data_vertex3f = NULL;
5070 loadmodel->brushq3.data_normal3f = NULL;
5071 loadmodel->brushq3.data_texcoordtexture2f = NULL;
5072 loadmodel->brushq3.data_texcoordlightmap2f = NULL;
5073 loadmodel->brushq3.data_color4f = NULL;
5074 // free the no longer needed triangle data
5075 loadmodel->brushq3.num_triangles = 0;
5076 if (loadmodel->brushq3.data_element3i)
5077 Mem_Free(loadmodel->brushq3.data_element3i);
5078 loadmodel->brushq3.data_element3i = NULL;
5081 static void Mod_Q3BSP_LoadModels(lump_t *l)
5085 int i, j, n, c, count;
5087 in = (q3dmodel_t *)(mod_base + l->fileofs);
5088 if (l->filelen % sizeof(*in))
5089 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
5090 count = l->filelen / sizeof(*in);
5091 out = (q3dmodel_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5093 loadmodel->brushq3.data_models = out;
5094 loadmodel->brushq3.num_models = count;
5096 for (i = 0;i < count;i++, in++, out++)
5098 for (j = 0;j < 3;j++)
5100 out->mins[j] = LittleFloat(in->mins[j]);
5101 out->maxs[j] = LittleFloat(in->maxs[j]);
5103 n = LittleLong(in->firstface);
5104 c = LittleLong(in->numfaces);
5105 if (n < 0 || n + c > loadmodel->num_surfaces)
5106 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)", n, n + c, loadmodel->num_surfaces);
5109 n = LittleLong(in->firstbrush);
5110 c = LittleLong(in->numbrushes);
5111 if (n < 0 || n + c > loadmodel->brush.num_brushes)
5112 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)", n, n + c, loadmodel->brush.num_brushes);
5113 out->firstbrush = n;
5114 out->numbrushes = c;
5118 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
5124 in = (int *)(mod_base + l->fileofs);
5125 if (l->filelen % sizeof(*in))
5126 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
5127 count = l->filelen / sizeof(*in);
5128 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5130 loadmodel->brush.data_leafbrushes = out;
5131 loadmodel->brush.num_leafbrushes = count;
5133 for (i = 0;i < count;i++, in++, out++)
5135 n = LittleLong(*in);
5136 if (n < 0 || n >= loadmodel->brush.num_brushes)
5137 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)", n, loadmodel->brush.num_brushes);
5142 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
5148 in = (int *)(mod_base + l->fileofs);
5149 if (l->filelen % sizeof(*in))
5150 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
5151 count = l->filelen / sizeof(*in);
5152 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5154 loadmodel->brush.data_leafsurfaces = out;
5155 loadmodel->brush.num_leafsurfaces = count;
5157 for (i = 0;i < count;i++, in++, out++)
5159 n = LittleLong(*in);
5160 if (n < 0 || n >= loadmodel->num_surfaces)
5161 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)", n, loadmodel->num_surfaces);
5166 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
5170 int i, j, n, c, count;
5172 in = (q3dleaf_t *)(mod_base + l->fileofs);
5173 if (l->filelen % sizeof(*in))
5174 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
5175 count = l->filelen / sizeof(*in);
5176 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5178 loadmodel->brush.data_leafs = out;
5179 loadmodel->brush.num_leafs = count;
5181 for (i = 0;i < count;i++, in++, out++)
5185 out->clusterindex = LittleLong(in->clusterindex);
5186 out->areaindex = LittleLong(in->areaindex);
5187 for (j = 0;j < 3;j++)
5189 // yes the mins/maxs are ints
5190 out->mins[j] = LittleLong(in->mins[j]) - 1;
5191 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5193 n = LittleLong(in->firstleafface);
5194 c = LittleLong(in->numleaffaces);
5195 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
5196 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)", n, n + c, loadmodel->brush.num_leafsurfaces);
5197 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
5198 out->numleafsurfaces = c;
5199 n = LittleLong(in->firstleafbrush);
5200 c = LittleLong(in->numleafbrushes);
5201 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
5202 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)", n, n + c, loadmodel->brush.num_leafbrushes);
5203 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
5204 out->numleafbrushes = c;
5208 static void Mod_Q3BSP_LoadNodes(lump_t *l)
5214 in = (q3dnode_t *)(mod_base + l->fileofs);
5215 if (l->filelen % sizeof(*in))
5216 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
5217 count = l->filelen / sizeof(*in);
5218 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5220 loadmodel->brush.data_nodes = out;
5221 loadmodel->brush.num_nodes = count;
5223 for (i = 0;i < count;i++, in++, out++)
5226 n = LittleLong(in->planeindex);
5227 if (n < 0 || n >= loadmodel->brush.num_planes)
5228 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5229 out->plane = loadmodel->brush.data_planes + n;
5230 for (j = 0;j < 2;j++)
5232 n = LittleLong(in->childrenindex[j]);
5235 if (n >= loadmodel->brush.num_nodes)
5236 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)", n, loadmodel->brush.num_nodes);
5237 out->children[j] = loadmodel->brush.data_nodes + n;
5242 if (n >= loadmodel->brush.num_leafs)
5243 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)", n, loadmodel->brush.num_leafs);
5244 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
5247 for (j = 0;j < 3;j++)
5249 // yes the mins/maxs are ints
5250 out->mins[j] = LittleLong(in->mins[j]) - 1;
5251 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5255 // set the parent pointers
5256 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
5259 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
5262 q3dlightgrid_t *out;
5265 in = (q3dlightgrid_t *)(mod_base + l->fileofs);
5266 if (l->filelen % sizeof(*in))
5267 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
5268 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
5269 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
5270 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
5271 loadmodel->brushq3.num_lightgrid_imins[0] = (int)ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5272 loadmodel->brushq3.num_lightgrid_imins[1] = (int)ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5273 loadmodel->brushq3.num_lightgrid_imins[2] = (int)ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5274 loadmodel->brushq3.num_lightgrid_imaxs[0] = (int)floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5275 loadmodel->brushq3.num_lightgrid_imaxs[1] = (int)floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5276 loadmodel->brushq3.num_lightgrid_imaxs[2] = (int)floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5277 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
5278 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
5279 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
5280 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
5281 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]);
5282 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]);
5284 // if lump is empty there is nothing to load, we can deal with that in the LightPoint code
5287 if (l->filelen < count * (int)sizeof(*in))
5288 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]);
5289 if (l->filelen != count * (int)sizeof(*in))
5290 Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", (int)(count * sizeof(*in)), l->filelen);
5291 out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5292 loadmodel->brushq3.data_lightgrid = out;
5293 loadmodel->brushq3.num_lightgrid = count;
5294 // no swapping or validation necessary
5295 memcpy(out, in, count * (int)sizeof(*out));
5299 static void Mod_Q3BSP_LoadPVS(lump_t *l)
5304 if (l->filelen == 0)
5307 // unvised maps often have cluster indices even without pvs, so check
5308 // leafs to find real number of clusters
5309 loadmodel->brush.num_pvsclusters = 1;
5310 for (i = 0;i < loadmodel->brush.num_leafs;i++)
5311 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
5314 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
5315 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5316 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5317 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
5321 in = (q3dpvs_t *)(mod_base + l->fileofs);
5323 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
5325 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
5326 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
5327 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
5328 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
5329 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5330 if (l->filelen < totalchains + (int)sizeof(*in))
5331 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);
5333 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5334 memcpy(loadmodel->brush.data_pvsclusters, (unsigned char *)(in + 1), totalchains);
5337 static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
5339 int i, j, k, index[3];
5340 float transformed[3], blend1, blend2, blend, yaw, pitch, sinpitch, stylescale;
5341 q3dlightgrid_t *a, *s;
5343 // scale lighting by lightstyle[0] so that darkmode in dpmod works properly
5344 stylescale = r_refdef.lightstylevalue[0] * (1.0f / 264.0f);
5346 if (!model->brushq3.num_lightgrid)
5348 ambientcolor[0] = stylescale;
5349 ambientcolor[1] = stylescale;
5350 ambientcolor[2] = stylescale;
5354 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
5355 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
5356 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
5357 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
5358 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
5359 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
5360 index[0] = (int)floor(transformed[0]);
5361 index[1] = (int)floor(transformed[1]);
5362 index[2] = (int)floor(transformed[2]);
5363 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
5365 // now lerp the values
5366 VectorClear(diffusenormal);
5367 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
5368 for (k = 0;k < 2;k++)
5370 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
5371 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
5373 for (j = 0;j < 2;j++)
5375 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
5376 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
5378 for (i = 0;i < 2;i++)
5380 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0]))) * stylescale;
5381 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
5383 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
5384 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
5385 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
5386 pitch = s->diffusepitch * M_PI / 128;
5387 yaw = s->diffuseyaw * M_PI / 128;
5388 sinpitch = sin(pitch);
5389 diffusenormal[0] += blend * (cos(yaw) * sinpitch);
5390 diffusenormal[1] += blend * (sin(yaw) * sinpitch);
5391 diffusenormal[2] += blend * (cos(pitch));
5392 //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)));
5397 // normalize the light direction before turning
5398 VectorNormalize(diffusenormal);
5399 //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]);
5402 static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t point, int markframe)
5407 // find which leaf the point is in
5409 node = node->children[DotProduct(point, node->plane->normal) < node->plane->dist];
5410 // point trace the brushes
5411 leaf = (mleaf_t *)node;
5412 for (i = 0;i < leaf->numleafbrushes;i++)
5414 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5415 if (brush && brush->markframe != markframe && BoxesOverlap(point, point, brush->mins, brush->maxs))
5417 brush->markframe = markframe;
5418 Collision_TracePointBrushFloat(trace, point, brush);
5421 // can't do point traces on curves (they have no thickness)
5424 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)
5426 int i, startside, endside;
5427 float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
5429 msurface_t *surface;
5432 // walk the tree until we hit a leaf, recursing for any split cases
5435 plane = node->plane;
5436 // axial planes are much more common than non-axial, so an optimized
5437 // axial case pays off here
5438 if (plane->type < 3)
5440 dist1 = start[plane->type] - plane->dist;
5441 dist2 = end[plane->type] - plane->dist;
5445 dist1 = DotProduct(start, plane->normal) - plane->dist;
5446 dist2 = DotProduct(end, plane->normal) - plane->dist;
5448 startside = dist1 < 0;
5449 endside = dist2 < 0;
5450 if (startside == endside)
5452 // most of the time the line fragment is on one side of the plane
5453 node = node->children[startside];
5457 // line crosses node plane, split the line
5458 dist1 = PlaneDiff(linestart, plane);
5459 dist2 = PlaneDiff(lineend, plane);
5460 midfrac = dist1 / (dist1 - dist2);
5461 VectorLerp(linestart, midfrac, lineend, mid);
5462 // take the near side first
5463 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5464 // if we found an impact on the front side, don't waste time
5465 // exploring the far side
5466 if (midfrac <= trace->realfraction)
5467 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5472 nodesegmentmins[0] = min(start[0], end[0]) - 1;
5473 nodesegmentmins[1] = min(start[1], end[1]) - 1;
5474 nodesegmentmins[2] = min(start[2], end[2]) - 1;
5475 nodesegmentmaxs[0] = max(start[0], end[0]) + 1;
5476 nodesegmentmaxs[1] = max(start[1], end[1]) + 1;
5477 nodesegmentmaxs[2] = max(start[2], end[2]) + 1;
5478 // line trace the brushes
5479 leaf = (mleaf_t *)node;
5480 for (i = 0;i < leaf->numleafbrushes;i++)
5482 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5483 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5485 brush->markframe = markframe;
5486 Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
5489 // can't do point traces on curves (they have no thickness)
5490 if (mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
5492 // line trace the curves
5493 for (i = 0;i < leaf->numleafsurfaces;i++)
5495 surface = model->data_surfaces + leaf->firstleafsurface[i];
5496 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5498 surface->collisionmarkframe = markframe;
5499 Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5505 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)
5511 msurface_t *surface;
5513 float nodesegmentmins[3], nodesegmentmaxs[3];
5514 // walk the tree until we hit a leaf, recursing for any split cases
5517 plane = node->plane;
5518 // axial planes are much more common than non-axial, so an optimized
5519 // axial case pays off here
5520 if (plane->type < 3)
5522 // this is an axial plane, compare bounding box directly to it and
5523 // recurse sides accordingly
5524 // recurse down node sides
5525 // use an inlined axial BoxOnPlaneSide to slightly reduce overhead
5526 //sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, plane);
5527 //sides = ((segmentmaxs[plane->type] >= plane->dist) | ((segmentmins[plane->type] < plane->dist) << 1));
5528 sides = ((segmentmaxs[plane->type] >= plane->dist) + ((segmentmins[plane->type] < plane->dist) * 2));
5532 // this is a non-axial plane, so check if the start and end boxes
5533 // are both on one side of the plane to handle 'diagonal' cases
5534 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, plane);
5538 // segment crosses plane
5539 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5542 // if sides == 0 then the trace itself is bogus (Not A Number values),
5543 // in this case we simply pretend the trace hit nothing
5545 return; // ERROR: NAN bounding box!
5546 // take whichever side the segment box is on
5547 node = node->children[sides - 1];
5549 nodesegmentmins[0] = max(segmentmins[0], node->mins[0] - 1);
5550 nodesegmentmins[1] = max(segmentmins[1], node->mins[1] - 1);
5551 nodesegmentmins[2] = max(segmentmins[2], node->mins[2] - 1);
5552 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0] + 1);
5553 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1] + 1);
5554 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2] + 1);
5556 leaf = (mleaf_t *)node;
5557 for (i = 0;i < leaf->numleafbrushes;i++)
5559 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5560 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5562 brush->markframe = markframe;
5563 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
5566 if (mod_q3bsp_curves_collisions.integer)
5568 for (i = 0;i < leaf->numleafsurfaces;i++)
5570 surface = model->data_surfaces + leaf->firstleafsurface[i];
5571 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5573 surface->collisionmarkframe = markframe;
5574 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);
5580 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)
5583 float segmentmins[3], segmentmaxs[3];
5584 static int markframe = 0;
5585 msurface_t *surface;
5587 memset(trace, 0, sizeof(*trace));
5588 trace->fraction = 1;
5589 trace->realfraction = 1;
5590 trace->hitsupercontentsmask = hitsupercontentsmask;
5591 if (mod_q3bsp_optimizedtraceline.integer && VectorLength2(boxmins) + VectorLength2(boxmaxs) == 0)
5593 if (VectorCompare(start, end))
5596 if (model->brush.submodel)
5598 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5599 if (brush->colbrushf)
5600 Collision_TracePointBrushFloat(trace, start, brush->colbrushf);
5603 Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, ++markframe);
5608 segmentmins[0] = min(start[0], end[0]) - 1;
5609 segmentmins[1] = min(start[1], end[1]) - 1;
5610 segmentmins[2] = min(start[2], end[2]) - 1;
5611 segmentmaxs[0] = max(start[0], end[0]) + 1;
5612 segmentmaxs[1] = max(start[1], end[1]) + 1;
5613 segmentmaxs[2] = max(start[2], end[2]) + 1;
5614 if (model->brush.submodel)
5616 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5617 if (brush->colbrushf)
5618 Collision_TraceLineBrushFloat(trace, start, end, brush->colbrushf, brush->colbrushf);
5619 if (mod_q3bsp_curves_collisions.integer)
5620 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5621 if (surface->num_collisiontriangles)
5622 Collision_TraceLineTriangleMeshFloat(trace, start, end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5625 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, end, 0, 1, start, end, ++markframe, segmentmins, segmentmaxs);
5630 // box trace, performed as brush trace
5631 colbrushf_t *thisbrush_start, *thisbrush_end;
5632 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
5633 segmentmins[0] = min(start[0], end[0]) + boxmins[0] - 1;
5634 segmentmins[1] = min(start[1], end[1]) + boxmins[1] - 1;
5635 segmentmins[2] = min(start[2], end[2]) + boxmins[2] - 1;
5636 segmentmaxs[0] = max(start[0], end[0]) + boxmaxs[0] + 1;
5637 segmentmaxs[1] = max(start[1], end[1]) + boxmaxs[1] + 1;
5638 segmentmaxs[2] = max(start[2], end[2]) + boxmaxs[2] + 1;
5639 VectorAdd(start, boxmins, boxstartmins);
5640 VectorAdd(start, boxmaxs, boxstartmaxs);
5641 VectorAdd(end, boxmins, boxendmins);
5642 VectorAdd(end, boxmaxs, boxendmaxs);
5643 thisbrush_start = Collision_BrushForBox(&identitymatrix, boxstartmins, boxstartmaxs, 0, 0, NULL);
5644 thisbrush_end = Collision_BrushForBox(&identitymatrix, boxendmins, boxendmaxs, 0, 0, NULL);
5645 if (model->brush.submodel)
5647 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5648 if (brush->colbrushf)
5649 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush->colbrushf, brush->colbrushf);
5650 if (mod_q3bsp_curves_collisions.integer)
5651 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5652 if (surface->num_collisiontriangles)
5653 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);
5656 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, model->brush.data_nodes, thisbrush_start, thisbrush_end, ++markframe, segmentmins, segmentmaxs);
5660 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
5662 int supercontents = 0;
5663 if (nativecontents & CONTENTSQ3_SOLID)
5664 supercontents |= SUPERCONTENTS_SOLID;
5665 if (nativecontents & CONTENTSQ3_WATER)
5666 supercontents |= SUPERCONTENTS_WATER;
5667 if (nativecontents & CONTENTSQ3_SLIME)
5668 supercontents |= SUPERCONTENTS_SLIME;
5669 if (nativecontents & CONTENTSQ3_LAVA)
5670 supercontents |= SUPERCONTENTS_LAVA;
5671 if (nativecontents & CONTENTSQ3_BODY)
5672 supercontents |= SUPERCONTENTS_BODY;
5673 if (nativecontents & CONTENTSQ3_CORPSE)
5674 supercontents |= SUPERCONTENTS_CORPSE;
5675 if (nativecontents & CONTENTSQ3_NODROP)
5676 supercontents |= SUPERCONTENTS_NODROP;
5677 if (nativecontents & CONTENTSQ3_PLAYERCLIP)
5678 supercontents |= SUPERCONTENTS_PLAYERCLIP;
5679 if (nativecontents & CONTENTSQ3_MONSTERCLIP)
5680 supercontents |= SUPERCONTENTS_MONSTERCLIP;
5681 if (nativecontents & CONTENTSQ3_DONOTENTER)
5682 supercontents |= SUPERCONTENTS_DONOTENTER;
5683 return supercontents;
5686 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
5688 int nativecontents = 0;
5689 if (supercontents & SUPERCONTENTS_SOLID)
5690 nativecontents |= CONTENTSQ3_SOLID;
5691 if (supercontents & SUPERCONTENTS_WATER)
5692 nativecontents |= CONTENTSQ3_WATER;
5693 if (supercontents & SUPERCONTENTS_SLIME)
5694 nativecontents |= CONTENTSQ3_SLIME;
5695 if (supercontents & SUPERCONTENTS_LAVA)
5696 nativecontents |= CONTENTSQ3_LAVA;
5697 if (supercontents & SUPERCONTENTS_BODY)
5698 nativecontents |= CONTENTSQ3_BODY;
5699 if (supercontents & SUPERCONTENTS_CORPSE)
5700 nativecontents |= CONTENTSQ3_CORPSE;
5701 if (supercontents & SUPERCONTENTS_NODROP)
5702 nativecontents |= CONTENTSQ3_NODROP;
5703 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
5704 nativecontents |= CONTENTSQ3_PLAYERCLIP;
5705 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
5706 nativecontents |= CONTENTSQ3_MONSTERCLIP;
5707 if (supercontents & SUPERCONTENTS_DONOTENTER)
5708 nativecontents |= CONTENTSQ3_DONOTENTER;
5709 return nativecontents;
5712 void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
5717 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
5718 node = node->children[1];
5720 numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
5721 if (loadmodel->brush.num_leafs < numleafs)
5722 loadmodel->brush.num_leafs = numleafs;
5725 void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
5727 int i, j, numshadowmeshtriangles;
5728 q3dheader_t *header;
5729 float corner[3], yawradius, modelradius;
5730 msurface_t *surface;
5732 mod->type = mod_brushq3;
5733 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
5736 header = (q3dheader_t *)buffer;
5738 i = LittleLong(header->version);
5739 if (i != Q3BSPVERSION)
5740 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
5741 mod->brush.ishlbsp = false;
5742 mod->brush.ismcbsp = false;
5743 if (loadmodel->isworldmodel)
5745 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
5746 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
5749 mod->soundfromcenter = true;
5750 mod->TraceBox = Mod_Q3BSP_TraceBox;
5751 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
5752 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
5753 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
5754 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
5755 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
5756 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
5757 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
5758 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
5759 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
5760 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5761 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
5762 mod->Draw = R_Q1BSP_Draw;
5763 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
5764 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
5765 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
5766 mod->DrawLight = R_Q1BSP_DrawLight;
5768 mod_base = (unsigned char *)header;
5770 // swap all the lumps
5771 header->ident = LittleLong(header->ident);
5772 header->version = LittleLong(header->version);
5773 for (i = 0;i < Q3HEADER_LUMPS;i++)
5775 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
5776 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
5779 mod->brush.qw_md4sum = 0;
5780 mod->brush.qw_md4sum2 = 0;
5781 for (i = 0;i < Q3HEADER_LUMPS;i++)
5783 if (i == Q3LUMP_ENTITIES)
5785 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
5786 if (i == Q3LUMP_PVS || i == Q3LUMP_LEAFS || i == Q3LUMP_NODES)
5788 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
5791 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
5792 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
5793 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
5794 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
5795 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
5796 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
5797 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
5798 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
5799 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS]);
5800 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
5801 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
5802 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
5803 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
5804 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
5805 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
5806 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
5807 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
5808 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
5810 // the MakePortals code works fine on the q3bsp data as well
5811 Mod_Q1BSP_MakePortals();
5813 // FIXME: shader alpha should replace r_wateralpha support in q3bsp
5814 loadmodel->brush.supportwateralpha = true;
5816 // make a single combined shadow mesh to allow optimized shadow volume creation
5817 numshadowmeshtriangles = 0;
5818 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5820 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
5821 numshadowmeshtriangles += surface->num_triangles;
5823 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
5824 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
5825 if (surface->num_triangles > 0)
5826 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));
5827 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true);
5828 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
5830 loadmodel->brush.num_leafs = 0;
5831 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
5833 if (loadmodel->isworldmodel)
5835 // clear out any stale submodels or worldmodels lying around
5836 // if we did this clear before now, an error might abort loading and
5837 // leave things in a bad state
5838 Mod_RemoveStaleWorldModels(loadmodel);
5842 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
5847 // LordHavoc: only register submodels if it is the world
5848 // (prevents external bsp models from replacing world submodels with
5850 if (!loadmodel->isworldmodel)
5852 // duplicate the basic information
5853 sprintf(name, "*%i", i);
5854 mod = Mod_FindName(name);
5856 strlcpy(mod->name, name, sizeof(mod->name));
5857 // textures and memory belong to the main model
5858 mod->texturepool = NULL;
5859 mod->mempool = NULL;
5860 mod->brush.GetPVS = NULL;
5861 mod->brush.FatPVS = NULL;
5862 mod->brush.BoxTouchingPVS = NULL;
5863 mod->brush.BoxTouchingLeafPVS = NULL;
5864 mod->brush.BoxTouchingVisibleLeafs = NULL;
5865 mod->brush.FindBoxClusters = NULL;
5866 mod->brush.LightPoint = NULL;
5867 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5869 mod->brush.submodel = i;
5871 // make the model surface list (used by shadowing/lighting)
5872 mod->firstmodelsurface = mod->brushq3.data_models[i].firstface;
5873 mod->nummodelsurfaces = mod->brushq3.data_models[i].numfaces;
5874 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
5875 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
5876 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
5877 for (j = 0;j < mod->nummodelsurfaces;j++)
5878 mod->surfacelist[j] = mod->firstmodelsurface + j;
5880 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
5881 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
5882 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
5883 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
5884 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
5885 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
5886 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
5887 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
5888 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
5889 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
5890 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
5891 mod->yawmins[2] = mod->normalmins[2];
5892 mod->yawmaxs[2] = mod->normalmaxs[2];
5893 mod->radius = modelradius;
5894 mod->radius2 = modelradius * modelradius;
5896 for (j = 0;j < mod->nummodelsurfaces;j++)
5897 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->surfaceflags & Q3SURFACEFLAG_SKY)
5899 if (j < mod->nummodelsurfaces)
5900 mod->DrawSky = R_Q1BSP_DrawSky;
5902 mod->DrawSky = NULL;
5906 void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
5908 int i = LittleLong(((int *)buffer)[1]);
5909 if (i == Q3BSPVERSION)
5910 Mod_Q3BSP_Load(mod,buffer, bufferend);
5911 else if (i == Q2BSPVERSION)
5912 Mod_Q2BSP_Load(mod,buffer, bufferend);
5914 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i", i);
5917 void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend)
5919 Host_Error("Mod_MAP_Load: not yet implemented");