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)"};
46 cvar_t mod_q3bsp_lightmapmergepower = {CVAR_SAVE, "mod_q3bsp_lightmapmergepower", "4", "merges the quake3 128x128 lightmap textures into larger lightmap group textures to speed up rendering, 1 = 256x256, 2 = 512x512, 3 = 1024x1024, 4 = 2048x2048, 5 = 4096x4096, ..."};
48 static texture_t mod_q1bsp_texture_solid;
49 static texture_t mod_q1bsp_texture_sky;
50 static texture_t mod_q1bsp_texture_lava;
51 static texture_t mod_q1bsp_texture_slime;
52 static texture_t mod_q1bsp_texture_water;
54 void Mod_BrushInit(void)
56 // Cvar_RegisterVariable(&r_subdivide_size);
57 Cvar_RegisterVariable(&halflifebsp);
58 Cvar_RegisterVariable(&mcbsp);
59 Cvar_RegisterVariable(&r_novis);
60 Cvar_RegisterVariable(&r_lightmaprgba);
61 Cvar_RegisterVariable(&r_nosurftextures);
62 Cvar_RegisterVariable(&r_subdivisions_tolerance);
63 Cvar_RegisterVariable(&r_subdivisions_mintess);
64 Cvar_RegisterVariable(&r_subdivisions_maxtess);
65 Cvar_RegisterVariable(&r_subdivisions_maxvertices);
66 Cvar_RegisterVariable(&r_subdivisions_collision_tolerance);
67 Cvar_RegisterVariable(&r_subdivisions_collision_mintess);
68 Cvar_RegisterVariable(&r_subdivisions_collision_maxtess);
69 Cvar_RegisterVariable(&r_subdivisions_collision_maxvertices);
70 Cvar_RegisterVariable(&mod_q3bsp_curves_collisions);
71 Cvar_RegisterVariable(&mod_q3bsp_optimizedtraceline);
72 Cvar_RegisterVariable(&mod_q3bsp_debugtracebrush);
73 Cvar_RegisterVariable(&mod_q3bsp_lightmapmergepower);
75 memset(&mod_q1bsp_texture_solid, 0, sizeof(mod_q1bsp_texture_solid));
76 strlcpy(mod_q1bsp_texture_solid.name, "solid" , sizeof(mod_q1bsp_texture_solid.name));
77 mod_q1bsp_texture_solid.surfaceflags = 0;
78 mod_q1bsp_texture_solid.supercontents = SUPERCONTENTS_SOLID;
80 mod_q1bsp_texture_sky = mod_q1bsp_texture_solid;
81 strlcpy(mod_q1bsp_texture_sky.name, "sky", sizeof(mod_q1bsp_texture_sky.name));
82 mod_q1bsp_texture_sky.surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
83 mod_q1bsp_texture_sky.supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
85 mod_q1bsp_texture_lava = mod_q1bsp_texture_solid;
86 strlcpy(mod_q1bsp_texture_lava.name, "*lava", sizeof(mod_q1bsp_texture_lava.name));
87 mod_q1bsp_texture_lava.surfaceflags = Q3SURFACEFLAG_NOMARKS;
88 mod_q1bsp_texture_lava.supercontents = SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
90 mod_q1bsp_texture_slime = mod_q1bsp_texture_solid;
91 strlcpy(mod_q1bsp_texture_slime.name, "*slime", sizeof(mod_q1bsp_texture_slime.name));
92 mod_q1bsp_texture_slime.surfaceflags = Q3SURFACEFLAG_NOMARKS;
93 mod_q1bsp_texture_slime.supercontents = SUPERCONTENTS_SLIME;
95 mod_q1bsp_texture_water = mod_q1bsp_texture_solid;
96 strlcpy(mod_q1bsp_texture_water.name, "*water", sizeof(mod_q1bsp_texture_water.name));
97 mod_q1bsp_texture_water.surfaceflags = Q3SURFACEFLAG_NOMARKS;
98 mod_q1bsp_texture_water.supercontents = SUPERCONTENTS_WATER;
101 static mleaf_t *Mod_Q1BSP_PointInLeaf(model_t *model, const vec3_t p)
108 // LordHavoc: modified to start at first clip node,
109 // in other words: first node of the (sub)model
110 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
112 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
114 return (mleaf_t *)node;
117 static void Mod_Q1BSP_AmbientSoundLevelsForPoint(model_t *model, const vec3_t p, unsigned char *out, int outsize)
121 leaf = Mod_Q1BSP_PointInLeaf(model, p);
124 i = min(outsize, (int)sizeof(leaf->ambient_sound_level));
127 memcpy(out, leaf->ambient_sound_level, i);
133 memset(out, 0, outsize);
136 static int Mod_Q1BSP_FindBoxClusters(model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
139 int nodestackindex = 0;
140 mnode_t *node, *nodestack[1024];
141 if (!model->brush.num_pvsclusters)
143 node = model->brush.data_nodes;
149 // node - recurse down the BSP tree
150 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
154 return -1; // ERROR: NAN bounding box!
155 // box is on one side of plane, take that path
156 node = node->children[sides-1];
160 // box crosses plane, take one path and remember the other
161 if (nodestackindex < 1024)
162 nodestack[nodestackindex++] = node->children[0];
163 node = node->children[1];
169 // leaf - add clusterindex to list
170 if (numclusters < maxclusters)
171 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
175 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
179 if (nodestackindex < 1024)
180 nodestack[nodestackindex++] = node->children[0];
181 node = node->children[1];
186 // leaf - add clusterindex to list
187 if (numclusters < maxclusters)
188 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
193 // try another path we didn't take earlier
194 if (nodestackindex == 0)
196 node = nodestack[--nodestackindex];
198 // return number of clusters found (even if more than the maxclusters)
202 static int Mod_Q1BSP_BoxTouchingPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
204 int nodestackindex = 0;
205 mnode_t *node, *nodestack[1024];
206 if (!model->brush.num_pvsclusters)
208 node = model->brush.data_nodes;
214 // node - recurse down the BSP tree
215 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
219 return -1; // ERROR: NAN bounding box!
220 // box is on one side of plane, take that path
221 node = node->children[sides-1];
225 // box crosses plane, take one path and remember the other
226 if (nodestackindex < 1024)
227 nodestack[nodestackindex++] = node->children[0];
228 node = node->children[1];
234 // leaf - check cluster bit
235 int clusterindex = ((mleaf_t *)node)->clusterindex;
236 if (CHECKPVSBIT(pvs, clusterindex))
238 // it is visible, return immediately with the news
243 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
247 if (nodestackindex < 1024)
248 nodestack[nodestackindex++] = node->children[0];
249 node = node->children[1];
254 // leaf - check cluster bit
255 int clusterindex = ((mleaf_t *)node)->clusterindex;
256 if (CHECKPVSBIT(pvs, clusterindex))
258 // it is visible, return immediately with the news
264 // nothing to see here, try another path we didn't take earlier
265 if (nodestackindex == 0)
267 node = nodestack[--nodestackindex];
273 static int Mod_Q1BSP_BoxTouchingLeafPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
275 int nodestackindex = 0;
276 mnode_t *node, *nodestack[1024];
277 if (!model->brush.num_leafs)
279 node = model->brush.data_nodes;
285 // node - recurse down the BSP tree
286 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
290 return -1; // ERROR: NAN bounding box!
291 // box is on one side of plane, take that path
292 node = node->children[sides-1];
296 // box crosses plane, take one path and remember the other
297 if (nodestackindex < 1024)
298 nodestack[nodestackindex++] = node->children[0];
299 node = node->children[1];
305 // leaf - check cluster bit
306 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
307 if (CHECKPVSBIT(pvs, clusterindex))
309 // it is visible, return immediately with the news
314 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
318 if (nodestackindex < 1024)
319 nodestack[nodestackindex++] = node->children[0];
320 node = node->children[1];
325 // leaf - check cluster bit
326 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
327 if (CHECKPVSBIT(pvs, clusterindex))
329 // it is visible, return immediately with the news
335 // nothing to see here, try another path we didn't take earlier
336 if (nodestackindex == 0)
338 node = nodestack[--nodestackindex];
344 static int Mod_Q1BSP_BoxTouchingVisibleLeafs(model_t *model, const unsigned char *visibleleafs, const vec3_t mins, const vec3_t maxs)
346 int nodestackindex = 0;
347 mnode_t *node, *nodestack[1024];
348 if (!model->brush.num_leafs)
350 node = model->brush.data_nodes;
356 // node - recurse down the BSP tree
357 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
361 return -1; // ERROR: NAN bounding box!
362 // box is on one side of plane, take that path
363 node = node->children[sides-1];
367 // box crosses plane, take one path and remember the other
368 if (nodestackindex < 1024)
369 nodestack[nodestackindex++] = node->children[0];
370 node = node->children[1];
376 // leaf - check if it is visible
377 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
379 // it is visible, return immediately with the news
384 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
388 if (nodestackindex < 1024)
389 nodestack[nodestackindex++] = node->children[0];
390 node = node->children[1];
395 // leaf - check if it is visible
396 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
398 // it is visible, return immediately with the news
404 // nothing to see here, try another path we didn't take earlier
405 if (nodestackindex == 0)
407 node = nodestack[--nodestackindex];
413 typedef struct findnonsolidlocationinfo_s
421 findnonsolidlocationinfo_t;
423 static void Mod_Q1BSP_FindNonSolidLocation_r_Leaf(findnonsolidlocationinfo_t *info, mleaf_t *leaf)
425 int i, surfacenum, k, *tri, *mark;
426 float dist, f, vert[3][3], edge[3][3], facenormal[3], edgenormal[3][3], point[3];
428 for (surfacenum = 0, mark = leaf->firstleafsurface;surfacenum < leaf->numleafsurfaces;surfacenum++, mark++)
430 surface = info->model->data_surfaces + *mark;
431 if (surface->texture->supercontents & SUPERCONTENTS_SOLID)
433 for (k = 0;k < surface->num_triangles;k++)
435 tri = (info->model->surfmesh.data_element3i + 3 * surface->num_firsttriangle) + k * 3;
436 VectorCopy((info->model->surfmesh.data_vertex3f + tri[0] * 3), vert[0]);
437 VectorCopy((info->model->surfmesh.data_vertex3f + tri[1] * 3), vert[1]);
438 VectorCopy((info->model->surfmesh.data_vertex3f + tri[2] * 3), vert[2]);
439 VectorSubtract(vert[1], vert[0], edge[0]);
440 VectorSubtract(vert[2], vert[1], edge[1]);
441 CrossProduct(edge[1], edge[0], facenormal);
442 if (facenormal[0] || facenormal[1] || facenormal[2])
444 VectorNormalize(facenormal);
445 f = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
446 if (f <= info->bestdist && f >= -info->bestdist)
448 VectorSubtract(vert[0], vert[2], edge[2]);
449 VectorNormalize(edge[0]);
450 VectorNormalize(edge[1]);
451 VectorNormalize(edge[2]);
452 CrossProduct(facenormal, edge[0], edgenormal[0]);
453 CrossProduct(facenormal, edge[1], edgenormal[1]);
454 CrossProduct(facenormal, edge[2], edgenormal[2]);
456 if (DotProduct(info->center, edgenormal[0]) < DotProduct(vert[0], edgenormal[0])
457 && DotProduct(info->center, edgenormal[1]) < DotProduct(vert[1], edgenormal[1])
458 && DotProduct(info->center, edgenormal[2]) < DotProduct(vert[2], edgenormal[2]))
460 // we got lucky, the center is within the face
461 dist = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
465 if (info->bestdist > dist)
467 info->bestdist = dist;
468 VectorScale(facenormal, (info->radius - -dist), info->nudge);
473 if (info->bestdist > dist)
475 info->bestdist = dist;
476 VectorScale(facenormal, (info->radius - dist), info->nudge);
482 // check which edge or vertex the center is nearest
483 for (i = 0;i < 3;i++)
485 f = DotProduct(info->center, edge[i]);
486 if (f >= DotProduct(vert[0], edge[i])
487 && f <= DotProduct(vert[1], edge[i]))
490 VectorMA(info->center, -f, edge[i], point);
491 dist = sqrt(DotProduct(point, point));
492 if (info->bestdist > dist)
494 info->bestdist = dist;
495 VectorScale(point, (info->radius / dist), info->nudge);
497 // skip both vertex checks
498 // (both are further away than this edge)
503 // not on edge, check first vertex of edge
504 VectorSubtract(info->center, vert[i], point);
505 dist = sqrt(DotProduct(point, point));
506 if (info->bestdist > dist)
508 info->bestdist = dist;
509 VectorScale(point, (info->radius / dist), info->nudge);
521 static void Mod_Q1BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, mnode_t *node)
525 float f = PlaneDiff(info->center, node->plane);
526 if (f >= -info->bestdist)
527 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[0]);
528 if (f <= info->bestdist)
529 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[1]);
533 if (((mleaf_t *)node)->numleafsurfaces)
534 Mod_Q1BSP_FindNonSolidLocation_r_Leaf(info, (mleaf_t *)node);
538 static void Mod_Q1BSP_FindNonSolidLocation(model_t *model, const vec3_t in, vec3_t out, float radius)
541 findnonsolidlocationinfo_t info;
547 VectorCopy(in, info.center);
548 info.radius = radius;
553 VectorClear(info.nudge);
554 info.bestdist = radius;
555 Mod_Q1BSP_FindNonSolidLocation_r(&info, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
556 VectorAdd(info.center, info.nudge, info.center);
558 while (info.bestdist < radius && ++i < 10);
559 VectorCopy(info.center, out);
562 int Mod_Q1BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
564 switch(nativecontents)
569 return SUPERCONTENTS_SOLID;
571 return SUPERCONTENTS_WATER;
573 return SUPERCONTENTS_SLIME;
575 return SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
577 return SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
582 int Mod_Q1BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
584 if (supercontents & (SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY))
585 return CONTENTS_SOLID;
586 if (supercontents & SUPERCONTENTS_SKY)
588 if (supercontents & SUPERCONTENTS_LAVA)
589 return CONTENTS_LAVA;
590 if (supercontents & SUPERCONTENTS_SLIME)
591 return CONTENTS_SLIME;
592 if (supercontents & SUPERCONTENTS_WATER)
593 return CONTENTS_WATER;
594 return CONTENTS_EMPTY;
597 typedef struct RecursiveHullCheckTraceInfo_s
599 // the hull we're tracing through
602 // the trace structure to fill in
605 // start, end, and end - start (in model space)
610 RecursiveHullCheckTraceInfo_t;
612 // 1/32 epsilon to keep floating point happy
613 #define DIST_EPSILON (0.03125)
615 #define HULLCHECKSTATE_EMPTY 0
616 #define HULLCHECKSTATE_SOLID 1
617 #define HULLCHECKSTATE_DONE 2
619 extern cvar_t collision_prefernudgedfraction;
620 static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int num, double p1f, double p2f, double p1[3], double p2[3])
622 // status variables, these don't need to be saved on the stack when
623 // recursing... but are because this should be thread-safe
624 // (note: tracing against a bbox is not thread-safe, yet)
629 // variables that need to be stored on the stack when recursing
634 // LordHavoc: a goto! everyone flee in terror... :)
639 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
640 if (!t->trace->startfound)
642 t->trace->startfound = true;
643 t->trace->startsupercontents |= num;
645 if (num & SUPERCONTENTS_LIQUIDSMASK)
646 t->trace->inwater = true;
648 t->trace->inopen = true;
649 if (num & SUPERCONTENTS_SOLID)
650 t->trace->hittexture = &mod_q1bsp_texture_solid;
651 else if (num & SUPERCONTENTS_SKY)
652 t->trace->hittexture = &mod_q1bsp_texture_sky;
653 else if (num & SUPERCONTENTS_LAVA)
654 t->trace->hittexture = &mod_q1bsp_texture_lava;
655 else if (num & SUPERCONTENTS_SLIME)
656 t->trace->hittexture = &mod_q1bsp_texture_slime;
658 t->trace->hittexture = &mod_q1bsp_texture_water;
659 t->trace->hitq3surfaceflags = t->trace->hittexture->surfaceflags;
660 t->trace->hitsupercontents = num;
661 if (num & t->trace->hitsupercontentsmask)
663 // if the first leaf is solid, set startsolid
664 if (t->trace->allsolid)
665 t->trace->startsolid = true;
666 #if COLLISIONPARANOID >= 3
669 return HULLCHECKSTATE_SOLID;
673 t->trace->allsolid = false;
674 #if COLLISIONPARANOID >= 3
677 return HULLCHECKSTATE_EMPTY;
681 // find the point distances
682 node = t->hull->clipnodes + num;
684 plane = t->hull->planes + node->planenum;
687 t1 = p1[plane->type] - plane->dist;
688 t2 = p2[plane->type] - plane->dist;
692 t1 = DotProduct (plane->normal, p1) - plane->dist;
693 t2 = DotProduct (plane->normal, p2) - plane->dist;
700 #if COLLISIONPARANOID >= 3
703 num = node->children[1];
712 #if COLLISIONPARANOID >= 3
715 num = node->children[0];
721 // the line intersects, find intersection point
722 // LordHavoc: this uses the original trace for maximum accuracy
723 #if COLLISIONPARANOID >= 3
728 t1 = t->start[plane->type] - plane->dist;
729 t2 = t->end[plane->type] - plane->dist;
733 t1 = DotProduct (plane->normal, t->start) - plane->dist;
734 t2 = DotProduct (plane->normal, t->end) - plane->dist;
737 midf = t1 / (t1 - t2);
738 midf = bound(p1f, midf, p2f);
739 VectorMA(t->start, midf, t->dist, mid);
741 // recurse both sides, front side first
742 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side], p1f, midf, p1, mid);
743 // if this side is not empty, return what it is (solid or done)
744 if (ret != HULLCHECKSTATE_EMPTY)
747 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side ^ 1], midf, p2f, mid, p2);
748 // if other side is not solid, return what it is (empty or done)
749 if (ret != HULLCHECKSTATE_SOLID)
752 // front is air and back is solid, this is the impact point...
755 t->trace->plane.dist = -plane->dist;
756 VectorNegate (plane->normal, t->trace->plane.normal);
760 t->trace->plane.dist = plane->dist;
761 VectorCopy (plane->normal, t->trace->plane.normal);
764 // calculate the true fraction
765 t1 = DotProduct(t->trace->plane.normal, t->start) - t->trace->plane.dist;
766 t2 = DotProduct(t->trace->plane.normal, t->end) - t->trace->plane.dist;
767 midf = t1 / (t1 - t2);
768 t->trace->realfraction = bound(0, midf, 1);
770 // calculate the return fraction which is nudged off the surface a bit
771 midf = (t1 - DIST_EPSILON) / (t1 - t2);
772 t->trace->fraction = bound(0, midf, 1);
774 if (collision_prefernudgedfraction.integer)
775 t->trace->realfraction = t->trace->fraction;
777 #if COLLISIONPARANOID >= 3
780 return HULLCHECKSTATE_DONE;
783 //#if COLLISIONPARANOID < 2
784 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
787 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];
788 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
789 t->trace->startsupercontents |= num;
790 if (num & SUPERCONTENTS_LIQUIDSMASK)
791 t->trace->inwater = true;
793 t->trace->inopen = true;
794 if (num & t->trace->hitsupercontentsmask)
796 t->trace->allsolid = t->trace->startsolid = true;
797 return HULLCHECKSTATE_SOLID;
801 t->trace->allsolid = t->trace->startsolid = false;
802 return HULLCHECKSTATE_EMPTY;
807 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)
809 // this function currently only supports same size start and end
811 RecursiveHullCheckTraceInfo_t rhc;
813 memset(&rhc, 0, sizeof(rhc));
814 memset(trace, 0, sizeof(trace_t));
816 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
817 rhc.trace->fraction = 1;
818 rhc.trace->realfraction = 1;
819 rhc.trace->allsolid = true;
820 VectorSubtract(boxmaxs, boxmins, boxsize);
822 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
823 else if (model->brush.ismcbsp)
825 if (boxsize[2] < 48) // pick the nearest of 40 or 56
826 rhc.hull = &model->brushq1.hulls[2]; // 16x16x40
828 rhc.hull = &model->brushq1.hulls[1]; // 16x16x56
830 else if (model->brush.ishlbsp)
832 // LordHavoc: this has to have a minor tolerance (the .1) because of
833 // minor float precision errors from the box being transformed around
834 if (boxsize[0] < 32.1)
836 if (boxsize[2] < 54) // pick the nearest of 36 or 72
837 rhc.hull = &model->brushq1.hulls[3]; // 32x32x36
839 rhc.hull = &model->brushq1.hulls[1]; // 32x32x72
842 rhc.hull = &model->brushq1.hulls[2]; // 64x64x64
846 // LordHavoc: this has to have a minor tolerance (the .1) because of
847 // minor float precision errors from the box being transformed around
848 if (boxsize[0] < 32.1)
849 rhc.hull = &model->brushq1.hulls[1]; // 32x32x56
851 rhc.hull = &model->brushq1.hulls[2]; // 64x64x88
853 VectorMAMAM(1, start, 1, boxmins, -1, rhc.hull->clip_mins, rhc.start);
854 VectorMAMAM(1, end, 1, boxmins, -1, rhc.hull->clip_mins, rhc.end);
855 VectorSubtract(rhc.end, rhc.start, rhc.dist);
856 #if COLLISIONPARANOID >= 2
857 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]);
858 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
863 VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
864 memset(&testtrace, 0, sizeof(trace_t));
865 rhc.trace = &testtrace;
866 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
867 rhc.trace->fraction = 1;
868 rhc.trace->realfraction = 1;
869 rhc.trace->allsolid = true;
870 VectorCopy(test, rhc.start);
871 VectorCopy(test, rhc.end);
872 VectorClear(rhc.dist);
873 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
874 //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
875 if (!trace->startsolid && testtrace.startsolid)
876 Con_Printf(" - ended in solid!\n");
880 if (VectorLength2(rhc.dist))
881 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
883 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
887 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)
891 colplanef_t cbox_planes[6];
892 cbox.supercontents = boxsupercontents;
895 cbox.numtriangles = 0;
896 cbox.planes = cbox_planes;
898 cbox.elements = NULL;
906 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];
907 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];
908 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];
909 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];
910 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];
911 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];
912 cbox_planes[0].q3surfaceflags = boxq3surfaceflags;cbox_planes[0].texture = boxtexture;
913 cbox_planes[1].q3surfaceflags = boxq3surfaceflags;cbox_planes[1].texture = boxtexture;
914 cbox_planes[2].q3surfaceflags = boxq3surfaceflags;cbox_planes[2].texture = boxtexture;
915 cbox_planes[3].q3surfaceflags = boxq3surfaceflags;cbox_planes[3].texture = boxtexture;
916 cbox_planes[4].q3surfaceflags = boxq3surfaceflags;cbox_planes[4].texture = boxtexture;
917 cbox_planes[5].q3surfaceflags = boxq3surfaceflags;cbox_planes[5].texture = boxtexture;
918 memset(trace, 0, sizeof(trace_t));
919 trace->hitsupercontentsmask = hitsupercontentsmask;
921 trace->realfraction = 1;
922 Collision_TraceLineBrushFloat(trace, start, end, &cbox, &cbox);
924 RecursiveHullCheckTraceInfo_t rhc;
925 static hull_t box_hull;
926 static dclipnode_t box_clipnodes[6];
927 static mplane_t box_planes[6];
928 // fill in a default trace
929 memset(&rhc, 0, sizeof(rhc));
930 memset(trace, 0, sizeof(trace_t));
931 //To keep everything totally uniform, bounding boxes are turned into small
932 //BSP trees instead of being compared directly.
933 // create a temp hull from bounding box sizes
934 box_planes[0].dist = cmaxs[0] - mins[0];
935 box_planes[1].dist = cmins[0] - maxs[0];
936 box_planes[2].dist = cmaxs[1] - mins[1];
937 box_planes[3].dist = cmins[1] - maxs[1];
938 box_planes[4].dist = cmaxs[2] - mins[2];
939 box_planes[5].dist = cmins[2] - maxs[2];
940 #if COLLISIONPARANOID >= 3
941 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]);
944 if (box_hull.clipnodes == NULL)
948 //Set up the planes and clipnodes so that the six floats of a bounding box
949 //can just be stored out and get a proper hull_t structure.
951 box_hull.clipnodes = box_clipnodes;
952 box_hull.planes = box_planes;
953 box_hull.firstclipnode = 0;
954 box_hull.lastclipnode = 5;
956 for (i = 0;i < 6;i++)
958 box_clipnodes[i].planenum = i;
962 box_clipnodes[i].children[side] = CONTENTS_EMPTY;
964 box_clipnodes[i].children[side^1] = i + 1;
966 box_clipnodes[i].children[side^1] = CONTENTS_SOLID;
968 box_planes[i].type = i>>1;
969 box_planes[i].normal[i>>1] = 1;
973 // trace a line through the generated clipping hull
974 //rhc.boxsupercontents = boxsupercontents;
975 rhc.hull = &box_hull;
977 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
978 rhc.trace->fraction = 1;
979 rhc.trace->realfraction = 1;
980 rhc.trace->allsolid = true;
981 VectorCopy(start, rhc.start);
982 VectorCopy(end, rhc.end);
983 VectorSubtract(rhc.end, rhc.start, rhc.dist);
984 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
985 //VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
986 if (rhc.trace->startsupercontents)
987 rhc.trace->startsupercontents = boxsupercontents;
991 static int Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(mnode_t *node, double p1[3], double p2[3])
1000 // find the point distances
1001 mplane_t *plane = node->plane;
1002 if (plane->type < 3)
1004 t1 = p1[plane->type] - plane->dist;
1005 t2 = p2[plane->type] - plane->dist;
1009 t1 = DotProduct (plane->normal, p1) - plane->dist;
1010 t2 = DotProduct (plane->normal, p2) - plane->dist;
1017 node = node->children[1];
1026 node = node->children[0];
1032 midf = t1 / (t1 - t2);
1033 VectorLerp(p1, midf, p2, mid);
1035 // recurse both sides, front side first
1036 // return 2 if empty is followed by solid (hit something)
1037 // do not return 2 if both are solid or both empty,
1038 // or if start is solid and end is empty
1039 // as these degenerate cases usually indicate the eye is in solid and
1040 // should see the target point anyway
1041 ret = Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ], p1, mid);
1044 ret = Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ^ 1], mid, p2);
1049 return ((mleaf_t *)node)->clusterindex < 0;
1052 static qboolean Mod_Q1BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end)
1054 // this function currently only supports same size start and end
1055 double tracestart[3], traceend[3];
1056 VectorCopy(start, tracestart);
1057 VectorCopy(end, traceend);
1058 return Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(model->brush.data_nodes, tracestart, traceend) != 2;
1061 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)
1065 float mid, distz = endz - startz;
1069 return false; // didn't hit anything
1071 switch (node->plane->type)
1074 node = node->children[x < node->plane->dist];
1077 node = node->children[y < node->plane->dist];
1080 side = startz < node->plane->dist;
1081 if ((endz < node->plane->dist) == side)
1083 node = node->children[side];
1086 // found an intersection
1087 mid = node->plane->dist;
1090 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
1091 front += startz * node->plane->normal[2];
1092 back += endz * node->plane->normal[2];
1093 side = front < node->plane->dist;
1094 if ((back < node->plane->dist) == side)
1096 node = node->children[side];
1099 // found an intersection
1100 mid = startz + distz * (front - node->plane->dist) / (front - back);
1104 // go down front side
1105 if (node->children[side]->plane && Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
1106 return true; // hit something
1109 // check for impact on this node
1110 if (node->numsurfaces)
1113 msurface_t *surface;
1115 surface = model->data_surfaces + node->firstsurface;
1116 for (i = 0;i < node->numsurfaces;i++, surface++)
1118 if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->lightmapinfo->samples)
1119 continue; // no lightmaps
1121 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];
1122 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];
1124 if (ds >= 0 && ds < surface->lightmapinfo->extents[0] && dt >= 0 && dt < surface->lightmapinfo->extents[1])
1126 unsigned char *lightmap;
1127 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;
1128 lmwidth = ((surface->lightmapinfo->extents[0]>>4)+1);
1129 lmheight = ((surface->lightmapinfo->extents[1]>>4)+1);
1130 line3 = lmwidth * 3; // LordHavoc: *3 for colored lighting
1131 size3 = lmwidth * lmheight * 3; // LordHavoc: *3 for colored lighting
1133 lightmap = surface->lightmapinfo->samples + ((dt>>4) * lmwidth + (ds>>4))*3; // LordHavoc: *3 for colored lighting
1135 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++)
1137 scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]];
1138 r00 += lightmap[ 0] * scale;g00 += lightmap[ 1] * scale;b00 += lightmap[ 2] * scale;
1139 r01 += lightmap[ 3] * scale;g01 += lightmap[ 4] * scale;b01 += lightmap[ 5] * scale;
1140 r10 += lightmap[line3+0] * scale;g10 += lightmap[line3+1] * scale;b10 += lightmap[line3+2] * scale;
1141 r11 += lightmap[line3+3] * scale;g11 += lightmap[line3+4] * scale;b11 += lightmap[line3+5] * scale;
1146 LordHavoc: here's the readable version of the interpolation
1147 code, not quite as easy for the compiler to optimize...
1149 dsfrac is the X position in the lightmap pixel, * 16
1150 dtfrac is the Y position in the lightmap pixel, * 16
1151 r00 is top left corner, r01 is top right corner
1152 r10 is bottom left corner, r11 is bottom right corner
1153 g and b are the same layout.
1154 r0 and r1 are the top and bottom intermediate results
1156 first we interpolate the top two points, to get the top
1159 r0 = (((r01-r00) * dsfrac) >> 4) + r00;
1160 g0 = (((g01-g00) * dsfrac) >> 4) + g00;
1161 b0 = (((b01-b00) * dsfrac) >> 4) + b00;
1163 then we interpolate the bottom two points, to get the
1166 r1 = (((r11-r10) * dsfrac) >> 4) + r10;
1167 g1 = (((g11-g10) * dsfrac) >> 4) + g10;
1168 b1 = (((b11-b10) * dsfrac) >> 4) + b10;
1170 then we interpolate the top and bottom samples to get the
1171 middle sample (the one which was requested)
1173 r = (((r1-r0) * dtfrac) >> 4) + r0;
1174 g = (((g1-g0) * dtfrac) >> 4) + g0;
1175 b = (((b1-b0) * dtfrac) >> 4) + b0;
1178 ambientcolor[0] += (float) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)) * (1.0f / 32768.0f);
1179 ambientcolor[1] += (float) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)) * (1.0f / 32768.0f);
1180 ambientcolor[2] += (float) ((((((((b11-b10) * dsfrac) >> 4) + b10)-((((b01-b00) * dsfrac) >> 4) + b00)) * dtfrac) >> 4) + ((((b01-b00) * dsfrac) >> 4) + b00)) * (1.0f / 32768.0f);
1181 return true; // success
1186 // go down back side
1187 node = node->children[side ^ 1];
1189 distz = endz - startz;
1194 void Mod_Q1BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
1196 // pretend lighting is coming down from above (due to lack of a lightgrid to know primary lighting direction)
1197 VectorSet(diffusenormal, 0, 0, 1);
1199 if (!model->brushq1.lightdata)
1201 VectorSet(ambientcolor, 1, 1, 1);
1202 VectorSet(diffusecolor, 0, 0, 0);
1206 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);
1209 static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char *inend, unsigned char *out, unsigned char *outend)
1212 unsigned char *outstart = out;
1213 while (out < outend)
1217 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));
1227 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));
1230 for (c = *in++;c > 0;c--)
1234 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));
1245 R_Q1BSP_LoadSplitSky
1247 A sky texture is 256*128, with the right side being a masked overlay
1250 void R_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesperpixel)
1253 unsigned solidpixels[128*128], alphapixels[128*128];
1255 // allocate a texture pool if we need it
1256 if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
1257 loadmodel->texturepool = R_AllocTexturePool();
1259 // if sky isn't the right size, just use it as a solid layer
1260 if (width != 256 || height != 128)
1262 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);
1263 loadmodel->brush.alphaskytexture = NULL;
1267 if (bytesperpixel == 4)
1269 for (i = 0;i < 128;i++)
1271 for (j = 0;j < 128;j++)
1273 solidpixels[(i*128) + j] = ((unsigned *)src)[i*256+j+128];
1274 alphapixels[(i*128) + j] = ((unsigned *)src)[i*256+j];
1280 // make an average value for the back to avoid
1281 // a fringe on the top level
1290 for (i = 0;i < 128;i++)
1292 for (j = 0;j < 128;j++)
1294 rgba.i = palette_complete[src[i*256 + j + 128]];
1300 rgba.b[0] = r/(128*128);
1301 rgba.b[1] = g/(128*128);
1302 rgba.b[2] = b/(128*128);
1304 for (i = 0;i < 128;i++)
1306 for (j = 0;j < 128;j++)
1308 solidpixels[(i*128) + j] = palette_complete[src[i*256 + j + 128]];
1309 alphapixels[(i*128) + j] = (p = src[i*256 + j]) ? palette_complete[p] : rgba.i;
1314 loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", 128, 128, (unsigned char *) solidpixels, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
1315 loadmodel->brush.alphaskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_alphatexture", 128, 128, (unsigned char *) alphapixels, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
1318 static void Mod_Q1BSP_LoadTextures(lump_t *l)
1320 int i, j, k, num, max, altmax, mtwidth, mtheight, *dofs, incomplete;
1321 skinframe_t *skinframe;
1323 texture_t *tx, *tx2, *anims[10], *altanims[10];
1325 unsigned char *data, *mtdata;
1327 char mapname[MAX_QPATH], name[MAX_QPATH];
1329 loadmodel->data_textures = NULL;
1331 // add two slots for notexture walls and notexture liquids
1334 m = (dmiptexlump_t *)(mod_base + l->fileofs);
1335 m->nummiptex = LittleLong (m->nummiptex);
1336 loadmodel->num_textures = m->nummiptex + 2;
1341 loadmodel->num_textures = 2;
1344 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
1346 // fill out all slots with notexture
1347 skinframe = R_SkinFrame_LoadMissing();
1348 for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
1350 strlcpy(tx->name, "NO TEXTURE FOUND", sizeof(tx->name));
1353 tx->numskinframes = 1;
1354 tx->skinframerate = 1;
1355 tx->skinframes[0] = skinframe;
1356 tx->currentskinframe = tx->skinframes[0];
1357 tx->basematerialflags = 0;
1358 if (i == loadmodel->num_textures - 1)
1360 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1361 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1362 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1366 tx->basematerialflags |= MATERIALFLAG_WALL;
1367 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1368 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1370 tx->currentframe = tx;
1376 s = loadmodel->name;
1377 if (!strncasecmp(s, "maps/", 5))
1379 FS_StripExtension(s, mapname, sizeof(mapname));
1381 // just to work around bounds checking when debugging with it (array index out of bounds error thing)
1383 // LordHavoc: mostly rewritten map texture loader
1384 for (i = 0;i < m->nummiptex;i++)
1386 dofs[i] = LittleLong(dofs[i]);
1387 if (dofs[i] == -1 || r_nosurftextures.integer)
1389 dmiptex = (miptex_t *)((unsigned char *)m + dofs[i]);
1391 // make sure name is no more than 15 characters
1392 for (j = 0;dmiptex->name[j] && j < 15;j++)
1393 name[j] = dmiptex->name[j];
1396 mtwidth = LittleLong(dmiptex->width);
1397 mtheight = LittleLong(dmiptex->height);
1399 j = LittleLong(dmiptex->offsets[0]);
1403 if (j < 40 || j + mtwidth * mtheight > l->filelen)
1405 Con_Printf("Texture \"%s\" in \"%s\"is corrupt or incomplete\n", dmiptex->name, loadmodel->name);
1408 mtdata = (unsigned char *)dmiptex + j;
1411 if ((mtwidth & 15) || (mtheight & 15))
1412 Con_Printf("warning: texture \"%s\" in \"%s\" is not 16 aligned\n", dmiptex->name, loadmodel->name);
1414 // LordHavoc: force all names to lowercase
1415 for (j = 0;name[j];j++)
1416 if (name[j] >= 'A' && name[j] <= 'Z')
1417 name[j] += 'a' - 'A';
1419 tx = loadmodel->data_textures + i;
1420 strlcpy(tx->name, name, sizeof(tx->name));
1421 tx->width = mtwidth;
1422 tx->height = mtheight;
1426 sprintf(tx->name, "unnamed%i", i);
1427 Con_Printf("warning: unnamed texture in %s, renaming to %s\n", loadmodel->name, tx->name);
1430 if (cls.state != ca_dedicated)
1432 // LordHavoc: HL sky textures are entirely different than quake
1433 if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == 256 && mtheight == 128)
1435 if (loadmodel->isworldmodel)
1437 data = loadimagepixels(tx->name, false, 0, 0);
1440 R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1443 else if (mtdata != NULL)
1444 R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1449 skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s/%s", mapname, tx->name), TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP);
1451 skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s", tx->name), TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP);
1454 // did not find external texture, load it from the bsp or wad3
1455 if (loadmodel->brush.ishlbsp)
1457 // internal texture overrides wad
1458 unsigned char *pixels, *freepixels;
1459 pixels = freepixels = NULL;
1461 pixels = W_ConvertWAD3Texture(dmiptex);
1463 pixels = freepixels = W_GetTexture(tx->name);
1466 tx->width = image_width;
1467 tx->height = image_height;
1468 skinframe = R_SkinFrame_LoadInternal(tx->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, false, false, pixels, image_width, image_height, 32, NULL, NULL);
1471 Mem_Free(freepixels);
1473 else if (mtdata) // texture included
1474 skinframe = R_SkinFrame_LoadInternal(tx->name, TEXF_MIPMAP | TEXF_PRECACHE | TEXF_PICMIP, false, r_fullbrights.integer, mtdata, tx->width, tx->height, 8, NULL, NULL);
1476 // if skinframe is still NULL the "missing" texture will be used
1478 tx->skinframes[0] = skinframe;
1482 tx->basematerialflags = 0;
1483 if (tx->name[0] == '*')
1485 // LordHavoc: some turbulent textures should not be affected by wateralpha
1486 if (strncmp(tx->name,"*lava",5)
1487 && strncmp(tx->name,"*teleport",9)
1488 && strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1489 tx->basematerialflags |= MATERIALFLAG_WATERALPHA | MATERIALFLAG_NOSHADOW;
1490 if (!strncmp(tx->name, "*lava", 5))
1492 tx->supercontents = mod_q1bsp_texture_lava.supercontents;
1493 tx->surfaceflags = mod_q1bsp_texture_lava.surfaceflags;
1495 else if (!strncmp(tx->name, "*slime", 6))
1497 tx->supercontents = mod_q1bsp_texture_slime.supercontents;
1498 tx->surfaceflags = mod_q1bsp_texture_slime.surfaceflags;
1502 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1503 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1505 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1507 else if (tx->name[0] == 's' && tx->name[1] == 'k' && tx->name[2] == 'y')
1509 tx->supercontents = mod_q1bsp_texture_sky.supercontents;
1510 tx->surfaceflags = mod_q1bsp_texture_sky.surfaceflags;
1511 tx->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
1515 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1516 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1517 tx->basematerialflags |= MATERIALFLAG_WALL;
1519 if (tx->skinframes[0]->fog)
1520 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1522 // start out with no animation
1523 tx->currentframe = tx;
1524 tx->currentskinframe = tx->skinframes[0];
1527 // sequence the animations
1528 for (i = 0;i < m->nummiptex;i++)
1530 tx = loadmodel->data_textures + i;
1531 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1533 if (tx->anim_total[0] || tx->anim_total[1])
1534 continue; // already sequenced
1536 // find the number of frames in the animation
1537 memset(anims, 0, sizeof(anims));
1538 memset(altanims, 0, sizeof(altanims));
1540 for (j = i;j < m->nummiptex;j++)
1542 tx2 = loadmodel->data_textures + j;
1543 if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
1547 if (num >= '0' && num <= '9')
1548 anims[num - '0'] = tx2;
1549 else if (num >= 'a' && num <= 'j')
1550 altanims[num - 'a'] = tx2;
1552 Con_Printf("Bad animating texture %s\n", tx->name);
1556 for (j = 0;j < 10;j++)
1563 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
1566 for (j = 0;j < max;j++)
1570 Con_Printf("Missing frame %i of %s\n", j, tx->name);
1574 for (j = 0;j < altmax;j++)
1578 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
1587 // if there is no alternate animation, duplicate the primary
1588 // animation into the alternate
1590 for (k = 0;k < 10;k++)
1591 altanims[k] = anims[k];
1594 // link together the primary animation
1595 for (j = 0;j < max;j++)
1598 tx2->animated = true;
1599 tx2->anim_total[0] = max;
1600 tx2->anim_total[1] = altmax;
1601 for (k = 0;k < 10;k++)
1603 tx2->anim_frames[0][k] = anims[k];
1604 tx2->anim_frames[1][k] = altanims[k];
1608 // if there really is an alternate anim...
1609 if (anims[0] != altanims[0])
1611 // link together the alternate animation
1612 for (j = 0;j < altmax;j++)
1615 tx2->animated = true;
1616 // the primary/alternate are reversed here
1617 tx2->anim_total[0] = altmax;
1618 tx2->anim_total[1] = max;
1619 for (k = 0;k < 10;k++)
1621 tx2->anim_frames[0][k] = altanims[k];
1622 tx2->anim_frames[1][k] = anims[k];
1629 static void Mod_Q1BSP_LoadLighting(lump_t *l)
1632 unsigned char *in, *out, *data, d;
1633 char litfilename[MAX_QPATH];
1634 char dlitfilename[MAX_QPATH];
1635 fs_offset_t filesize;
1636 if (loadmodel->brush.ishlbsp) // LordHavoc: load the colored lighting data straight
1638 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1639 for (i=0; i<l->filelen; i++)
1640 loadmodel->brushq1.lightdata[i] = mod_base[l->fileofs+i] >>= 1;
1642 else if (loadmodel->brush.ismcbsp)
1644 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1645 memcpy(loadmodel->brushq1.lightdata, mod_base + l->fileofs, l->filelen);
1647 else // LordHavoc: bsp version 29 (normal white lighting)
1649 // LordHavoc: hope is not lost yet, check for a .lit file to load
1650 strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
1651 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
1652 strlcpy (dlitfilename, litfilename, sizeof (dlitfilename));
1653 strlcat (litfilename, ".lit", sizeof (litfilename));
1654 strlcat (dlitfilename, ".dlit", sizeof (dlitfilename));
1655 data = (unsigned char*) FS_LoadFile(litfilename, tempmempool, false, &filesize);
1658 if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1660 i = LittleLong(((int *)data)[1]);
1663 Con_DPrintf("loaded %s\n", litfilename);
1664 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1665 memcpy(loadmodel->brushq1.lightdata, data + 8, filesize - 8);
1667 data = (unsigned char*) FS_LoadFile(dlitfilename, tempmempool, false, &filesize);
1670 if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1672 i = LittleLong(((int *)data)[1]);
1675 Con_DPrintf("loaded %s\n", dlitfilename);
1676 loadmodel->brushq1.nmaplightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1677 memcpy(loadmodel->brushq1.nmaplightdata, data + 8, filesize - 8);
1678 loadmodel->brushq3.deluxemapping_modelspace = false;
1679 loadmodel->brushq3.deluxemapping = true;
1688 Con_Printf("Unknown .lit file version (%d)\n", i);
1690 else if (filesize == 8)
1691 Con_Print("Empty .lit file, ignoring\n");
1693 Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", (int) filesize, (int) (8 + l->filelen * 3));
1700 // LordHavoc: oh well, expand the white lighting data
1703 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen*3);
1704 in = mod_base + l->fileofs;
1705 out = loadmodel->brushq1.lightdata;
1706 for (i = 0;i < l->filelen;i++)
1716 static void Mod_Q1BSP_LoadVisibility(lump_t *l)
1718 loadmodel->brushq1.num_compressedpvs = 0;
1719 loadmodel->brushq1.data_compressedpvs = NULL;
1722 loadmodel->brushq1.num_compressedpvs = l->filelen;
1723 loadmodel->brushq1.data_compressedpvs = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1724 memcpy(loadmodel->brushq1.data_compressedpvs, mod_base + l->fileofs, l->filelen);
1727 // used only for HalfLife maps
1728 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
1730 char key[128], value[4096];
1735 if (!COM_ParseTokenConsole(&data))
1737 if (com_token[0] != '{')
1741 if (!COM_ParseTokenConsole(&data))
1743 if (com_token[0] == '}')
1744 break; // end of worldspawn
1745 if (com_token[0] == '_')
1746 strlcpy(key, com_token + 1, sizeof(key));
1748 strlcpy(key, com_token, sizeof(key));
1749 while (key[strlen(key)-1] == ' ') // remove trailing spaces
1750 key[strlen(key)-1] = 0;
1751 if (!COM_ParseTokenConsole(&data))
1753 dpsnprintf(value, sizeof(value), "%s", com_token);
1754 if (!strcmp("wad", key)) // for HalfLife maps
1756 if (loadmodel->brush.ishlbsp)
1759 for (i = 0;i < (int)sizeof(value);i++)
1760 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
1764 for (;i < (int)sizeof(value);i++)
1766 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
1767 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
1769 else if (value[i] == ';' || value[i] == 0)
1773 strlcpy(wadname, "textures/", sizeof(wadname));
1774 strlcat(wadname, &value[j], sizeof(wadname));
1775 W_LoadTextureWadFile(wadname, false);
1787 static void Mod_Q1BSP_LoadEntities(lump_t *l)
1789 loadmodel->brush.entities = NULL;
1792 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1793 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
1794 if (loadmodel->brush.ishlbsp)
1795 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
1799 static void Mod_Q1BSP_LoadVertexes(lump_t *l)
1805 in = (dvertex_t *)(mod_base + l->fileofs);
1806 if (l->filelen % sizeof(*in))
1807 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
1808 count = l->filelen / sizeof(*in);
1809 out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1811 loadmodel->brushq1.vertexes = out;
1812 loadmodel->brushq1.numvertexes = count;
1814 for ( i=0 ; i<count ; i++, in++, out++)
1816 out->position[0] = LittleFloat(in->point[0]);
1817 out->position[1] = LittleFloat(in->point[1]);
1818 out->position[2] = LittleFloat(in->point[2]);
1822 // The following two functions should be removed and MSG_* or SZ_* function sets adjusted so they
1823 // can be used for this
1825 int SB_ReadInt (unsigned char **buffer)
1828 i = ((*buffer)[0]) + 256*((*buffer)[1]) + 65536*((*buffer)[2]) + 16777216*((*buffer)[3]);
1834 float SB_ReadFloat (unsigned char **buffer)
1842 u.i = SB_ReadInt (buffer);
1846 static void Mod_Q1BSP_LoadSubmodels(lump_t *l, hullinfo_t *hullinfo)
1848 unsigned char *index;
1852 index = (unsigned char *)(mod_base + l->fileofs);
1853 if (l->filelen % (48+4*hullinfo->filehulls))
1854 Host_Error ("Mod_Q1BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
1856 count = l->filelen / (48+4*hullinfo->filehulls);
1857 out = (dmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
1859 loadmodel->brushq1.submodels = out;
1860 loadmodel->brush.numsubmodels = count;
1862 for (i = 0; i < count; i++, out++)
1864 // spread out the mins / maxs by a pixel
1865 out->mins[0] = SB_ReadFloat (&index) - 1;
1866 out->mins[1] = SB_ReadFloat (&index) - 1;
1867 out->mins[2] = SB_ReadFloat (&index) - 1;
1868 out->maxs[0] = SB_ReadFloat (&index) + 1;
1869 out->maxs[1] = SB_ReadFloat (&index) + 1;
1870 out->maxs[2] = SB_ReadFloat (&index) + 1;
1871 out->origin[0] = SB_ReadFloat (&index);
1872 out->origin[1] = SB_ReadFloat (&index);
1873 out->origin[2] = SB_ReadFloat (&index);
1874 for (j = 0; j < hullinfo->filehulls; j++)
1875 out->headnode[j] = SB_ReadInt (&index);
1876 out->visleafs = SB_ReadInt (&index);
1877 out->firstface = SB_ReadInt (&index);
1878 out->numfaces = SB_ReadInt (&index);
1882 static void Mod_Q1BSP_LoadEdges(lump_t *l)
1888 in = (dedge_t *)(mod_base + l->fileofs);
1889 if (l->filelen % sizeof(*in))
1890 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
1891 count = l->filelen / sizeof(*in);
1892 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1894 loadmodel->brushq1.edges = out;
1895 loadmodel->brushq1.numedges = count;
1897 for ( i=0 ; i<count ; i++, in++, out++)
1899 out->v[0] = (unsigned short)LittleShort(in->v[0]);
1900 out->v[1] = (unsigned short)LittleShort(in->v[1]);
1901 if (out->v[0] >= loadmodel->brushq1.numvertexes || out->v[1] >= loadmodel->brushq1.numvertexes)
1903 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);
1910 static void Mod_Q1BSP_LoadTexinfo(lump_t *l)
1914 int i, j, k, count, miptex;
1916 in = (texinfo_t *)(mod_base + l->fileofs);
1917 if (l->filelen % sizeof(*in))
1918 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
1919 count = l->filelen / sizeof(*in);
1920 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1922 loadmodel->brushq1.texinfo = out;
1923 loadmodel->brushq1.numtexinfo = count;
1925 for (i = 0;i < count;i++, in++, out++)
1927 for (k = 0;k < 2;k++)
1928 for (j = 0;j < 4;j++)
1929 out->vecs[k][j] = LittleFloat(in->vecs[k][j]);
1931 miptex = LittleLong(in->miptex);
1932 out->flags = LittleLong(in->flags);
1934 out->texture = NULL;
1935 if (loadmodel->data_textures)
1937 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
1938 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
1940 out->texture = loadmodel->data_textures + miptex;
1942 if (out->flags & TEX_SPECIAL)
1944 // if texture chosen is NULL or the shader needs a lightmap,
1945 // force to notexture water shader
1946 if (out->texture == NULL || out->texture->basematerialflags & MATERIALFLAG_WALL)
1947 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 1);
1951 // if texture chosen is NULL, force to notexture
1952 if (out->texture == NULL)
1953 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 2);
1959 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
1964 mins[0] = mins[1] = mins[2] = 9999;
1965 maxs[0] = maxs[1] = maxs[2] = -9999;
1967 for (i = 0;i < numverts;i++)
1969 for (j = 0;j < 3;j++, v++)
1979 #define MAX_SUBDIVPOLYTRIANGLES 4096
1980 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
1982 static int subdivpolyverts, subdivpolytriangles;
1983 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
1984 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
1986 static int subdivpolylookupvert(vec3_t v)
1989 for (i = 0;i < subdivpolyverts;i++)
1990 if (subdivpolyvert[i][0] == v[0]
1991 && subdivpolyvert[i][1] == v[1]
1992 && subdivpolyvert[i][2] == v[2])
1994 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
1995 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
1996 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
1997 return subdivpolyverts++;
2000 static void SubdividePolygon(int numverts, float *verts)
2002 int i, i1, i2, i3, f, b, c, p;
2003 vec3_t mins, maxs, front[256], back[256];
2004 float m, *pv, *cv, dist[256], frac;
2007 Host_Error("SubdividePolygon: ran out of verts in buffer");
2009 BoundPoly(numverts, verts, mins, maxs);
2011 for (i = 0;i < 3;i++)
2013 m = (mins[i] + maxs[i]) * 0.5;
2014 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
2015 if (maxs[i] - m < 8)
2017 if (m - mins[i] < 8)
2021 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
2022 dist[c] = cv[i] - m;
2025 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
2029 VectorCopy(pv, front[f]);
2034 VectorCopy(pv, back[b]);
2037 if (dist[p] == 0 || dist[c] == 0)
2039 if ((dist[p] > 0) != (dist[c] > 0) )
2042 frac = dist[p] / (dist[p] - dist[c]);
2043 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
2044 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
2045 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
2051 SubdividePolygon(f, front[0]);
2052 SubdividePolygon(b, back[0]);
2056 i1 = subdivpolylookupvert(verts);
2057 i2 = subdivpolylookupvert(verts + 3);
2058 for (i = 2;i < numverts;i++)
2060 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
2062 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
2066 i3 = subdivpolylookupvert(verts + i * 3);
2067 subdivpolyindex[subdivpolytriangles][0] = i1;
2068 subdivpolyindex[subdivpolytriangles][1] = i2;
2069 subdivpolyindex[subdivpolytriangles][2] = i3;
2071 subdivpolytriangles++;
2075 //Breaks a polygon up along axial 64 unit
2076 //boundaries so that turbulent and sky warps
2077 //can be done reasonably.
2078 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
2084 subdivpolytriangles = 0;
2085 subdivpolyverts = 0;
2086 SubdividePolygon(surface->num_vertices, (surface->mesh->data_vertex3f + 3 * surface->num_firstvertex));
2087 if (subdivpolytriangles < 1)
2088 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?");
2090 surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
2091 mesh->num_vertices = subdivpolyverts;
2092 mesh->num_triangles = subdivpolytriangles;
2093 mesh->vertex = (surfvertex_t *)(mesh + 1);
2094 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
2095 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
2097 for (i = 0;i < mesh->num_triangles;i++)
2098 for (j = 0;j < 3;j++)
2099 mesh->index[i*3+j] = subdivpolyindex[i][j];
2101 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
2103 VectorCopy(subdivpolyvert[i], v->v);
2104 v->st[0] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[0]);
2105 v->st[1] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[1]);
2110 static qboolean Mod_Q1BSP_AllocLightmapBlock(int *lineused, int totalwidth, int totalheight, int blockwidth, int blockheight, int *outx, int *outy)
2113 int bestx = totalwidth, besty = 0;
2114 // find the left-most space we can find
2115 for (y = 0;y <= totalheight - blockheight;y++)
2118 for (y2 = 0;y2 < blockheight;y2++)
2119 x2 = max(x2, lineused[y+y2]);
2126 // if the best was not good enough, return failure
2127 if (bestx > totalwidth - blockwidth)
2129 // we found a good spot
2134 // now mark the space used
2135 for (y2 = 0;y2 < blockheight;y2++)
2136 lineused[besty+y2] = bestx + blockwidth;
2141 static void Mod_Q1BSP_LoadFaces(lump_t *l)
2144 msurface_t *surface;
2145 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber;
2146 float texmins[2], texmaxs[2], val, lightmaptexcoordscale;
2147 #define LIGHTMAPSIZE 256
2148 rtexture_t *lightmaptexture, *deluxemaptexture;
2149 int lightmap_lineused[LIGHTMAPSIZE];
2151 in = (dface_t *)(mod_base + l->fileofs);
2152 if (l->filelen % sizeof(*in))
2153 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
2154 count = l->filelen / sizeof(*in);
2155 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
2156 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
2158 loadmodel->num_surfaces = count;
2162 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs);surfacenum < count;surfacenum++, in++)
2164 numedges = LittleShort(in->numedges);
2165 totalverts += numedges;
2166 totaltris += numedges - 2;
2169 Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false, false);
2171 lightmaptexture = NULL;
2172 deluxemaptexture = r_texture_blanknormalmap;
2174 lightmaptexcoordscale = 1.0f / (float)LIGHTMAPSIZE;
2178 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs), surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, in++, surface++)
2180 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
2182 // FIXME: validate edges, texinfo, etc?
2183 firstedge = LittleLong(in->firstedge);
2184 numedges = LittleShort(in->numedges);
2185 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)
2186 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)", firstedge, numedges, loadmodel->brushq1.numsurfedges);
2187 i = LittleShort(in->texinfo);
2188 if ((unsigned int) i >= (unsigned int) loadmodel->brushq1.numtexinfo)
2189 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)", i, loadmodel->brushq1.numtexinfo);
2190 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + i;
2191 surface->texture = surface->lightmapinfo->texinfo->texture;
2193 planenum = LittleShort(in->planenum);
2194 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
2195 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)", planenum, loadmodel->brush.num_planes);
2197 //surface->flags = surface->texture->flags;
2198 //if (LittleShort(in->side))
2199 // surface->flags |= SURF_PLANEBACK;
2200 //surface->plane = loadmodel->brush.data_planes + planenum;
2202 surface->num_firstvertex = totalverts;
2203 surface->num_vertices = numedges;
2204 surface->num_firsttriangle = totaltris;
2205 surface->num_triangles = numedges - 2;
2206 totalverts += numedges;
2207 totaltris += numedges - 2;
2209 // convert edges back to a normal polygon
2210 for (i = 0;i < surface->num_vertices;i++)
2212 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
2215 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2217 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2218 s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2219 t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2220 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
2221 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
2222 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
2223 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
2224 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
2227 for (i = 0;i < surface->num_triangles;i++)
2229 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
2230 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
2231 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
2234 // compile additional data about the surface geometry
2235 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);
2236 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);
2237 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
2239 // generate surface extents information
2240 texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2241 texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2242 for (i = 1;i < surface->num_vertices;i++)
2244 for (j = 0;j < 2;j++)
2246 val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
2247 texmins[j] = min(texmins[j], val);
2248 texmaxs[j] = max(texmaxs[j], val);
2251 for (i = 0;i < 2;i++)
2253 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
2254 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
2257 smax = surface->lightmapinfo->extents[0] >> 4;
2258 tmax = surface->lightmapinfo->extents[1] >> 4;
2259 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2260 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2263 for (i = 0;i < MAXLIGHTMAPS;i++)
2264 surface->lightmapinfo->styles[i] = in->styles[i];
2265 surface->lightmaptexture = NULL;
2266 surface->deluxemaptexture = r_texture_blanknormalmap;
2267 i = LittleLong(in->lightofs);
2270 surface->lightmapinfo->samples = NULL;
2271 // give non-lightmapped water a 1x white lightmap
2272 if ((surface->texture->basematerialflags & MATERIALFLAG_WATER) && (surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
2274 surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2275 surface->lightmapinfo->styles[0] = 0;
2276 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
2279 else if (loadmodel->brush.ishlbsp) // LordHavoc: HalfLife map (bsp version 30)
2280 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + i;
2281 else // LordHavoc: white lighting (bsp version 29)
2283 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (i * 3);
2284 if (loadmodel->brushq1.nmaplightdata)
2285 surface->lightmapinfo->nmapsamples = loadmodel->brushq1.nmaplightdata + (i * 3);
2288 // check if we should apply a lightmap to this
2289 if (!(surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
2291 int i, iu, iv, lightmapx, lightmapy;
2292 float u, v, ubase, vbase, uscale, vscale;
2294 if (ssize > 256 || tsize > 256)
2295 Host_Error("Bad surface extents");
2296 // force lightmap upload on first time seeing the surface
2297 surface->cached_dlight = true;
2298 // stainmap for permanent marks on walls
2299 surface->lightmapinfo->stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2301 memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
2303 // find a place for this lightmap
2304 if (!lightmaptexture || !Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, LIGHTMAPSIZE, LIGHTMAPSIZE, ssize, tsize, &lightmapx, &lightmapy))
2306 // allocate a texture pool if we need it
2307 if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
2308 loadmodel->texturepool = R_AllocTexturePool();
2309 // could not find room, make a new lightmap
2310 lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%i", lightmapnumber), LIGHTMAPSIZE, LIGHTMAPSIZE, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2311 if (loadmodel->brushq1.nmaplightdata)
2312 deluxemaptexture = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%i", lightmapnumber), LIGHTMAPSIZE, LIGHTMAPSIZE, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2314 memset(lightmap_lineused, 0, sizeof(lightmap_lineused));
2315 Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, LIGHTMAPSIZE, LIGHTMAPSIZE, ssize, tsize, &lightmapx, &lightmapy);
2318 surface->lightmaptexture = lightmaptexture;
2319 surface->deluxemaptexture = deluxemaptexture;
2320 surface->lightmapinfo->lightmaporigin[0] = lightmapx;
2321 surface->lightmapinfo->lightmaporigin[1] = lightmapy;
2323 ubase = lightmapx * lightmaptexcoordscale;
2324 vbase = lightmapy * lightmaptexcoordscale;
2325 uscale = lightmaptexcoordscale;
2326 vscale = lightmaptexcoordscale;
2328 for (i = 0;i < surface->num_vertices;i++)
2330 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);
2331 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);
2332 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
2333 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
2334 // LordHavoc: calc lightmap data offset for vertex lighting to use
2337 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
2343 static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
2346 // Host_Error("Mod_Q1BSP_LoadNodes_RecursiveSetParent: runaway recursion");
2347 node->parent = parent;
2350 // this is a node, recurse to children
2351 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
2352 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
2353 // combine supercontents of children
2354 node->combinedsupercontents = node->children[0]->combinedsupercontents | node->children[1]->combinedsupercontents;
2359 mleaf_t *leaf = (mleaf_t *)node;
2360 // if this is a leaf, calculate supercontents mask from all collidable
2361 // primitives in the leaf (brushes and collision surfaces)
2362 // also flag if the leaf contains any collision surfaces
2363 leaf->combinedsupercontents = 0;
2364 // combine the supercontents values of all brushes in this leaf
2365 for (j = 0;j < leaf->numleafbrushes;j++)
2366 leaf->combinedsupercontents |= loadmodel->brush.data_brushes[leaf->firstleafbrush[j]].texture->supercontents;
2367 // check if this leaf contains any collision surfaces (q3 patches)
2368 for (j = 0;j < leaf->numleafsurfaces;j++)
2370 msurface_t *surface = loadmodel->data_surfaces + leaf->firstleafsurface[j];
2371 if (surface->num_collisiontriangles)
2373 leaf->containscollisionsurfaces = true;
2374 leaf->combinedsupercontents |= surface->texture->supercontents;
2380 static void Mod_Q1BSP_LoadNodes(lump_t *l)
2386 in = (dnode_t *)(mod_base + l->fileofs);
2387 if (l->filelen % sizeof(*in))
2388 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
2389 count = l->filelen / sizeof(*in);
2390 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2392 loadmodel->brush.data_nodes = out;
2393 loadmodel->brush.num_nodes = count;
2395 for ( i=0 ; i<count ; i++, in++, out++)
2397 for (j=0 ; j<3 ; j++)
2399 out->mins[j] = LittleShort(in->mins[j]);
2400 out->maxs[j] = LittleShort(in->maxs[j]);
2403 p = LittleLong(in->planenum);
2404 out->plane = loadmodel->brush.data_planes + p;
2406 out->firstsurface = LittleShort(in->firstface);
2407 out->numsurfaces = LittleShort(in->numfaces);
2409 for (j=0 ; j<2 ; j++)
2411 p = LittleShort(in->children[j]);
2413 out->children[j] = loadmodel->brush.data_nodes + p;
2415 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + (-1 - p));
2419 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
2422 static void Mod_Q1BSP_LoadLeafs(lump_t *l)
2428 in = (dleaf_t *)(mod_base + l->fileofs);
2429 if (l->filelen % sizeof(*in))
2430 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2431 count = l->filelen / sizeof(*in);
2432 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2434 loadmodel->brush.data_leafs = out;
2435 loadmodel->brush.num_leafs = count;
2436 // get visleafs from the submodel data
2437 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2438 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2439 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2440 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2442 for ( i=0 ; i<count ; i++, in++, out++)
2444 for (j=0 ; j<3 ; j++)
2446 out->mins[j] = LittleShort(in->mins[j]);
2447 out->maxs[j] = LittleShort(in->maxs[j]);
2450 // FIXME: this function could really benefit from some error checking
2452 out->contents = LittleLong(in->contents);
2454 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + LittleShort(in->firstmarksurface);
2455 out->numleafsurfaces = LittleShort(in->nummarksurfaces);
2456 if (out->firstleafsurface < 0 || LittleShort(in->firstmarksurface) + out->numleafsurfaces > loadmodel->brush.num_leafsurfaces)
2458 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);
2459 out->firstleafsurface = NULL;
2460 out->numleafsurfaces = 0;
2463 out->clusterindex = i - 1;
2464 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
2465 out->clusterindex = -1;
2467 p = LittleLong(in->visofs);
2468 // ignore visofs errors on leaf 0 (solid)
2469 if (p >= 0 && out->clusterindex >= 0)
2471 if (p >= loadmodel->brushq1.num_compressedpvs)
2472 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
2474 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);
2477 for (j = 0;j < 4;j++)
2478 out->ambient_sound_level[j] = in->ambient_level[j];
2480 // FIXME: Insert caustics here
2484 qboolean Mod_Q1BSP_CheckWaterAlphaSupport(void)
2488 const unsigned char *pvs;
2489 // check all liquid leafs to see if they can see into empty leafs, if any
2490 // can we can assume this map supports r_wateralpha
2491 for (i = 0, leaf = loadmodel->brush.data_leafs;i < loadmodel->brush.num_leafs;i++, leaf++)
2493 if ((leaf->contents == CONTENTS_WATER || leaf->contents == CONTENTS_SLIME) && (leaf->clusterindex >= 0 && loadmodel->brush.data_pvsclusters))
2495 pvs = loadmodel->brush.data_pvsclusters + leaf->clusterindex * loadmodel->brush.num_pvsclusterbytes;
2496 for (j = 0;j < loadmodel->brush.num_leafs;j++)
2497 if (CHECKPVSBIT(pvs, loadmodel->brush.data_leafs[j].clusterindex) && loadmodel->brush.data_leafs[j].contents == CONTENTS_EMPTY)
2504 static void Mod_Q1BSP_LoadClipnodes(lump_t *l, hullinfo_t *hullinfo)
2506 dclipnode_t *in, *out;
2510 in = (dclipnode_t *)(mod_base + l->fileofs);
2511 if (l->filelen % sizeof(*in))
2512 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
2513 count = l->filelen / sizeof(*in);
2514 out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2516 loadmodel->brushq1.clipnodes = out;
2517 loadmodel->brushq1.numclipnodes = count;
2519 for (i = 1; i < hullinfo->numhulls; i++)
2521 hull = &loadmodel->brushq1.hulls[i];
2522 hull->clipnodes = out;
2523 hull->firstclipnode = 0;
2524 hull->lastclipnode = count-1;
2525 hull->planes = loadmodel->brush.data_planes;
2526 hull->clip_mins[0] = hullinfo->hullsizes[i][0][0];
2527 hull->clip_mins[1] = hullinfo->hullsizes[i][0][1];
2528 hull->clip_mins[2] = hullinfo->hullsizes[i][0][2];
2529 hull->clip_maxs[0] = hullinfo->hullsizes[i][1][0];
2530 hull->clip_maxs[1] = hullinfo->hullsizes[i][1][1];
2531 hull->clip_maxs[2] = hullinfo->hullsizes[i][1][2];
2532 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2535 for (i=0 ; i<count ; i++, out++, in++)
2537 out->planenum = LittleLong(in->planenum);
2538 out->children[0] = LittleShort(in->children[0]);
2539 out->children[1] = LittleShort(in->children[1]);
2540 if (out->planenum < 0 || out->planenum >= loadmodel->brush.num_planes)
2541 Host_Error("Corrupt clipping hull(out of range planenum)");
2542 if (out->children[0] >= count || out->children[1] >= count)
2543 Host_Error("Corrupt clipping hull(out of range child)");
2547 //Duplicate the drawing hull structure as a clipping hull
2548 static void Mod_Q1BSP_MakeHull0(void)
2555 hull = &loadmodel->brushq1.hulls[0];
2557 in = loadmodel->brush.data_nodes;
2558 out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(dclipnode_t));
2560 hull->clipnodes = out;
2561 hull->firstclipnode = 0;
2562 hull->lastclipnode = loadmodel->brush.num_nodes - 1;
2563 hull->planes = loadmodel->brush.data_planes;
2565 for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
2567 out->planenum = in->plane - loadmodel->brush.data_planes;
2568 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
2569 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
2573 static void Mod_Q1BSP_LoadLeaffaces(lump_t *l)
2578 in = (short *)(mod_base + l->fileofs);
2579 if (l->filelen % sizeof(*in))
2580 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
2581 loadmodel->brush.num_leafsurfaces = l->filelen / sizeof(*in);
2582 loadmodel->brush.data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
2584 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
2586 j = (unsigned) LittleShort(in[i]);
2587 if (j >= loadmodel->num_surfaces)
2588 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
2589 loadmodel->brush.data_leafsurfaces[i] = j;
2593 static void Mod_Q1BSP_LoadSurfedges(lump_t *l)
2598 in = (int *)(mod_base + l->fileofs);
2599 if (l->filelen % sizeof(*in))
2600 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
2601 loadmodel->brushq1.numsurfedges = l->filelen / sizeof(*in);
2602 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
2604 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
2605 loadmodel->brushq1.surfedges[i] = LittleLong(in[i]);
2609 static void Mod_Q1BSP_LoadPlanes(lump_t *l)
2615 in = (dplane_t *)(mod_base + l->fileofs);
2616 if (l->filelen % sizeof(*in))
2617 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
2619 loadmodel->brush.num_planes = l->filelen / sizeof(*in);
2620 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
2622 for (i = 0;i < loadmodel->brush.num_planes;i++, in++, out++)
2624 out->normal[0] = LittleFloat(in->normal[0]);
2625 out->normal[1] = LittleFloat(in->normal[1]);
2626 out->normal[2] = LittleFloat(in->normal[2]);
2627 out->dist = LittleFloat(in->dist);
2633 static void Mod_Q1BSP_LoadMapBrushes(void)
2637 int submodel, numbrushes;
2638 qboolean firstbrush;
2639 char *text, *maptext;
2640 char mapfilename[MAX_QPATH];
2641 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
2642 strlcat (mapfilename, ".map", sizeof (mapfilename));
2643 maptext = (unsigned char*) FS_LoadFile(mapfilename, tempmempool, false, NULL);
2647 if (!COM_ParseTokenConsole(&data))
2652 if (!COM_ParseTokenConsole(&data))
2654 if (com_token[0] != '{')
2660 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
2663 if (!COM_ParseTokenConsole(&data))
2665 if (com_token[0] == '}')
2666 break; // end of entity
2667 if (com_token[0] == '{')
2674 if (submodel > loadmodel->brush.numsubmodels)
2676 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
2680 model = loadmodel->brush.submodels[submodel];
2687 if (!COM_ParseTokenConsole(&data))
2689 if (com_token[0] == '}')
2690 break; // end of brush
2691 // each brush face should be this format:
2692 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
2693 // FIXME: support hl .map format
2694 for (pointnum = 0;pointnum < 3;pointnum++)
2696 COM_ParseTokenConsole(&data);
2697 for (componentnum = 0;componentnum < 3;componentnum++)
2699 COM_ParseTokenConsole(&data);
2700 point[pointnum][componentnum] = atof(com_token);
2702 COM_ParseTokenConsole(&data);
2704 COM_ParseTokenConsole(&data);
2705 strlcpy(facetexture, com_token, sizeof(facetexture));
2706 COM_ParseTokenConsole(&data);
2707 //scroll_s = atof(com_token);
2708 COM_ParseTokenConsole(&data);
2709 //scroll_t = atof(com_token);
2710 COM_ParseTokenConsole(&data);
2711 //rotate = atof(com_token);
2712 COM_ParseTokenConsole(&data);
2713 //scale_s = atof(com_token);
2714 COM_ParseTokenConsole(&data);
2715 //scale_t = atof(com_token);
2716 TriangleNormal(point[0], point[1], point[2], planenormal);
2717 VectorNormalizeDouble(planenormal);
2718 planedist = DotProduct(point[0], planenormal);
2719 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
2729 #define MAX_PORTALPOINTS 64
2731 typedef struct portal_s
2734 mnode_t *nodes[2]; // [0] = front side of plane
2735 struct portal_s *next[2];
2737 double points[3*MAX_PORTALPOINTS];
2738 struct portal_s *chain; // all portals are linked into a list
2742 static portal_t *portalchain;
2749 static portal_t *AllocPortal(void)
2752 p = (portal_t *)Mem_Alloc(loadmodel->mempool, sizeof(portal_t));
2753 p->chain = portalchain;
2758 static void FreePortal(portal_t *p)
2763 static void Mod_Q1BSP_RecursiveRecalcNodeBBox(mnode_t *node)
2765 // process only nodes (leafs already had their box calculated)
2769 // calculate children first
2770 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[0]);
2771 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[1]);
2773 // make combined bounding box from children
2774 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
2775 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
2776 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
2777 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
2778 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
2779 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
2782 static void Mod_Q1BSP_FinalizePortals(void)
2784 int i, j, numportals, numpoints;
2785 portal_t *p, *pnext;
2788 mleaf_t *leaf, *endleaf;
2790 // tally up portal and point counts and recalculate bounding boxes for all
2791 // leafs (because qbsp is very sloppy)
2792 leaf = loadmodel->brush.data_leafs;
2793 endleaf = leaf + loadmodel->brush.num_leafs;
2794 for (;leaf < endleaf;leaf++)
2796 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
2797 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
2804 // note: this check must match the one below or it will usually corrupt memory
2805 // 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
2806 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2809 numpoints += p->numpoints * 2;
2813 loadmodel->brush.data_portals = (mportal_t *)Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
2814 loadmodel->brush.num_portals = numportals;
2815 loadmodel->brush.data_portalpoints = (mvertex_t *)((unsigned char *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
2816 loadmodel->brush.num_portalpoints = numpoints;
2817 // clear all leaf portal chains
2818 for (i = 0;i < loadmodel->brush.num_leafs;i++)
2819 loadmodel->brush.data_leafs[i].portals = NULL;
2820 // process all portals in the global portal chain, while freeing them
2821 portal = loadmodel->brush.data_portals;
2822 point = loadmodel->brush.data_portalpoints;
2829 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1])
2831 // note: this check must match the one above or it will usually corrupt memory
2832 // 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
2833 if (((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2835 // first make the back to front portal(forward portal)
2836 portal->points = point;
2837 portal->numpoints = p->numpoints;
2838 portal->plane.dist = p->plane.dist;
2839 VectorCopy(p->plane.normal, portal->plane.normal);
2840 portal->here = (mleaf_t *)p->nodes[1];
2841 portal->past = (mleaf_t *)p->nodes[0];
2843 for (j = 0;j < portal->numpoints;j++)
2845 VectorCopy(p->points + j*3, point->position);
2848 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2849 PlaneClassify(&portal->plane);
2851 // link into leaf's portal chain
2852 portal->next = portal->here->portals;
2853 portal->here->portals = portal;
2855 // advance to next portal
2858 // then make the front to back portal(backward portal)
2859 portal->points = point;
2860 portal->numpoints = p->numpoints;
2861 portal->plane.dist = -p->plane.dist;
2862 VectorNegate(p->plane.normal, portal->plane.normal);
2863 portal->here = (mleaf_t *)p->nodes[0];
2864 portal->past = (mleaf_t *)p->nodes[1];
2866 for (j = portal->numpoints - 1;j >= 0;j--)
2868 VectorCopy(p->points + j*3, point->position);
2871 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2872 PlaneClassify(&portal->plane);
2874 // link into leaf's portal chain
2875 portal->next = portal->here->portals;
2876 portal->here->portals = portal;
2878 // advance to next portal
2881 // add the portal's polygon points to the leaf bounding boxes
2882 for (i = 0;i < 2;i++)
2884 leaf = (mleaf_t *)p->nodes[i];
2885 for (j = 0;j < p->numpoints;j++)
2887 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
2888 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
2889 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
2890 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
2891 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
2892 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
2899 // now recalculate the node bounding boxes from the leafs
2900 Mod_Q1BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes);
2908 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
2911 Host_Error("AddPortalToNodes: NULL front node");
2913 Host_Error("AddPortalToNodes: NULL back node");
2914 if (p->nodes[0] || p->nodes[1])
2915 Host_Error("AddPortalToNodes: already included");
2916 // 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
2918 p->nodes[0] = front;
2919 p->next[0] = (portal_t *)front->portals;
2920 front->portals = (mportal_t *)p;
2923 p->next[1] = (portal_t *)back->portals;
2924 back->portals = (mportal_t *)p;
2929 RemovePortalFromNode
2932 static void RemovePortalFromNodes(portal_t *portal)
2936 void **portalpointer;
2938 for (i = 0;i < 2;i++)
2940 node = portal->nodes[i];
2942 portalpointer = (void **) &node->portals;
2945 t = (portal_t *)*portalpointer;
2947 Host_Error("RemovePortalFromNodes: portal not in leaf");
2951 if (portal->nodes[0] == node)
2953 *portalpointer = portal->next[0];
2954 portal->nodes[0] = NULL;
2956 else if (portal->nodes[1] == node)
2958 *portalpointer = portal->next[1];
2959 portal->nodes[1] = NULL;
2962 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2966 if (t->nodes[0] == node)
2967 portalpointer = (void **) &t->next[0];
2968 else if (t->nodes[1] == node)
2969 portalpointer = (void **) &t->next[1];
2971 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2976 #define PORTAL_DIST_EPSILON (1.0 / 32.0)
2977 static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
2980 mnode_t *front, *back, *other_node;
2981 mplane_t clipplane, *plane;
2982 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
2983 int numfrontpoints, numbackpoints;
2984 double frontpoints[3*MAX_PORTALPOINTS], backpoints[3*MAX_PORTALPOINTS];
2986 // if a leaf, we're done
2990 plane = node->plane;
2992 front = node->children[0];
2993 back = node->children[1];
2995 Host_Error("Mod_Q1BSP_RecursiveNodePortals: corrupt node hierarchy");
2997 // create the new portal by generating a polygon for the node plane,
2998 // and clipping it by all of the other portals(which came from nodes above this one)
2999 nodeportal = AllocPortal();
3000 nodeportal->plane = *plane;
3002 // 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)
3003 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);
3004 nodeportal->numpoints = 4;
3005 side = 0; // shut up compiler warning
3006 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
3008 clipplane = portal->plane;
3009 if (portal->nodes[0] == portal->nodes[1])
3010 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(1)");
3011 if (portal->nodes[0] == node)
3013 else if (portal->nodes[1] == node)
3015 clipplane.dist = -clipplane.dist;
3016 VectorNegate(clipplane.normal, clipplane.normal);
3020 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
3022 for (i = 0;i < nodeportal->numpoints*3;i++)
3023 frontpoints[i] = nodeportal->points[i];
3024 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);
3025 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
3029 if (nodeportal->numpoints < 3)
3031 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
3032 nodeportal->numpoints = 0;
3034 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
3036 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
3037 nodeportal->numpoints = 0;
3040 AddPortalToNodes(nodeportal, front, back);
3042 // split the portals of this node along this node's plane and assign them to the children of this node
3043 // (migrating the portals downward through the tree)
3044 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
3046 if (portal->nodes[0] == portal->nodes[1])
3047 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(2)");
3048 if (portal->nodes[0] == node)
3050 else if (portal->nodes[1] == node)
3053 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
3054 nextportal = portal->next[side];
3055 if (!portal->numpoints)
3058 other_node = portal->nodes[!side];
3059 RemovePortalFromNodes(portal);
3061 // cut the portal into two portals, one on each side of the node plane
3062 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);
3064 if (!numfrontpoints)
3067 AddPortalToNodes(portal, back, other_node);
3069 AddPortalToNodes(portal, other_node, back);
3075 AddPortalToNodes(portal, front, other_node);
3077 AddPortalToNodes(portal, other_node, front);
3081 // the portal is split
3082 splitportal = AllocPortal();
3083 temp = splitportal->chain;
3084 *splitportal = *portal;
3085 splitportal->chain = temp;
3086 for (i = 0;i < numbackpoints*3;i++)
3087 splitportal->points[i] = backpoints[i];
3088 splitportal->numpoints = numbackpoints;
3089 for (i = 0;i < numfrontpoints*3;i++)
3090 portal->points[i] = frontpoints[i];
3091 portal->numpoints = numfrontpoints;
3095 AddPortalToNodes(portal, front, other_node);
3096 AddPortalToNodes(splitportal, back, other_node);
3100 AddPortalToNodes(portal, other_node, front);
3101 AddPortalToNodes(splitportal, other_node, back);
3105 Mod_Q1BSP_RecursiveNodePortals(front);
3106 Mod_Q1BSP_RecursiveNodePortals(back);
3109 static void Mod_Q1BSP_MakePortals(void)
3112 Mod_Q1BSP_RecursiveNodePortals(loadmodel->brush.data_nodes);
3113 Mod_Q1BSP_FinalizePortals();
3116 static void Mod_Q1BSP_BuildLightmapUpdateChains(mempool_t *mempool, model_t *model)
3118 int i, j, stylecounts[256], totalcount, remapstyles[256];
3119 msurface_t *surface;
3120 memset(stylecounts, 0, sizeof(stylecounts));
3121 for (i = 0;i < model->nummodelsurfaces;i++)
3123 surface = model->data_surfaces + model->firstmodelsurface + i;
3124 for (j = 0;j < MAXLIGHTMAPS;j++)
3125 stylecounts[surface->lightmapinfo->styles[j]]++;
3128 model->brushq1.light_styles = 0;
3129 for (i = 0;i < 255;i++)
3133 remapstyles[i] = model->brushq1.light_styles++;
3134 totalcount += stylecounts[i] + 1;
3139 model->brushq1.light_style = (unsigned char *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(unsigned char));
3140 model->brushq1.light_stylevalue = (int *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(int));
3141 model->brushq1.light_styleupdatechains = (msurface_t ***)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(msurface_t **));
3142 model->brushq1.light_styleupdatechainsbuffer = (msurface_t **)Mem_Alloc(mempool, totalcount * sizeof(msurface_t *));
3143 model->brushq1.light_styles = 0;
3144 for (i = 0;i < 255;i++)
3146 model->brushq1.light_style[model->brushq1.light_styles++] = i;
3148 for (i = 0;i < model->brushq1.light_styles;i++)
3150 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
3151 j += stylecounts[model->brushq1.light_style[i]] + 1;
3153 for (i = 0;i < model->nummodelsurfaces;i++)
3155 surface = model->data_surfaces + model->firstmodelsurface + i;
3156 for (j = 0;j < MAXLIGHTMAPS;j++)
3157 if (surface->lightmapinfo->styles[j] != 255)
3158 *model->brushq1.light_styleupdatechains[remapstyles[surface->lightmapinfo->styles[j]]]++ = surface;
3161 for (i = 0;i < model->brushq1.light_styles;i++)
3163 *model->brushq1.light_styleupdatechains[i] = NULL;
3164 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
3165 j += stylecounts[model->brushq1.light_style[i]] + 1;
3169 //Returns PVS data for a given point
3170 //(note: can return NULL)
3171 static unsigned char *Mod_Q1BSP_GetPVS(model_t *model, const vec3_t p)
3174 node = model->brush.data_nodes;
3176 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
3177 if (((mleaf_t *)node)->clusterindex >= 0)
3178 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3183 static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
3187 float d = PlaneDiff(org, node->plane);
3189 node = node->children[0];
3190 else if (d < -radius)
3191 node = node->children[1];
3194 // go down both sides
3195 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
3196 node = node->children[1];
3199 // if this leaf is in a cluster, accumulate the pvs bits
3200 if (((mleaf_t *)node)->clusterindex >= 0)
3203 unsigned char *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3204 for (i = 0;i < pvsbytes;i++)
3205 pvsbuffer[i] |= pvs[i];
3209 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
3210 //of the given point.
3211 static int Mod_Q1BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength)
3213 int bytes = model->brush.num_pvsclusterbytes;
3214 bytes = min(bytes, pvsbufferlength);
3215 if (r_novis.integer || !model->brush.num_pvsclusters || !Mod_Q1BSP_GetPVS(model, org))
3217 memset(pvsbuffer, 0xFF, bytes);
3220 memset(pvsbuffer, 0, bytes);
3221 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes);
3225 static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
3230 VectorSubtract(inmaxs, inmins, size);
3231 if (cmodel->brush.ismcbsp)
3234 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3235 else if (size[2] < 48) // pick the nearest of 40 or 56
3236 hull = &cmodel->brushq1.hulls[2]; // 16x16x40
3238 hull = &cmodel->brushq1.hulls[1]; // 16x16x56
3240 else if (cmodel->brush.ishlbsp)
3243 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3244 else if (size[0] <= 32)
3246 if (size[2] < 54) // pick the nearest of 36 or 72
3247 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
3249 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
3252 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
3257 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3258 else if (size[0] <= 32)
3259 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
3261 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
3263 VectorCopy(inmins, outmins);
3264 VectorAdd(inmins, hull->clip_size, outmaxs);
3267 void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
3272 mempool_t *mainmempool;
3273 float dist, modelyawradius, modelradius, *vec;
3274 msurface_t *surface;
3275 int numshadowmeshtriangles;
3277 hullinfo_t hullinfo;
3279 mod->type = mod_brushq1;
3281 if (!memcmp (buffer, "MCBSPpad", 8))
3283 unsigned char *index;
3285 mod->brush.ismcbsp = true;
3286 mod->brush.ishlbsp = false;
3288 mod_base = (unsigned char*)buffer;
3292 i = SB_ReadInt (&index);
3293 if (i != MCBSPVERSION)
3294 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i)", mod->name, i, MCBSPVERSION);
3297 hullinfo.numhulls = LittleLong(*(int*)index); index += 4;
3298 hullinfo.filehulls = hullinfo.numhulls;
3299 VectorClear (hullinfo.hullsizes[0][0]);
3300 VectorClear (hullinfo.hullsizes[0][1]);
3301 for (i = 1; i < hullinfo.numhulls; i++)
3303 hullinfo.hullsizes[i][0][0] = SB_ReadFloat (&index);
3304 hullinfo.hullsizes[i][0][1] = SB_ReadFloat (&index);
3305 hullinfo.hullsizes[i][0][2] = SB_ReadFloat (&index);
3306 hullinfo.hullsizes[i][1][0] = SB_ReadFloat (&index);
3307 hullinfo.hullsizes[i][1][1] = SB_ReadFloat (&index);
3308 hullinfo.hullsizes[i][1][2] = SB_ReadFloat (&index);
3312 _header.version = 0;
3313 for (i = 0; i < HEADER_LUMPS; i++)
3315 _header.lumps[i].fileofs = SB_ReadInt (&index);
3316 _header.lumps[i].filelen = SB_ReadInt (&index);
3323 header = (dheader_t *)buffer;
3325 i = LittleLong(header->version);
3326 if (i != BSPVERSION && i != 30)
3327 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i(Quake) or 30(HalfLife)", mod->name, i, BSPVERSION);
3328 mod->brush.ishlbsp = i == 30;
3329 mod->brush.ismcbsp = false;
3331 // fill in hull info
3332 VectorClear (hullinfo.hullsizes[0][0]);
3333 VectorClear (hullinfo.hullsizes[0][1]);
3334 if (mod->brush.ishlbsp)
3336 hullinfo.numhulls = 4;
3337 hullinfo.filehulls = 4;
3338 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
3339 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
3340 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
3341 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
3342 VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
3343 VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
3347 hullinfo.numhulls = 3;
3348 hullinfo.filehulls = 4;
3349 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
3350 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
3351 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
3352 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
3356 mod_base = (unsigned char*)buffer;
3357 for (i = 0; i < HEADER_LUMPS; i++)
3359 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
3360 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
3364 mod->soundfromcenter = true;
3365 mod->TraceBox = Mod_Q1BSP_TraceBox;
3366 mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
3367 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3368 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3369 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
3370 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
3371 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
3372 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
3373 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
3374 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
3375 mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
3376 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
3377 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3378 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3379 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
3381 if (loadmodel->isworldmodel)
3383 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3384 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3389 // store which lightmap format to use
3390 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3392 mod->brush.qw_md4sum = 0;
3393 mod->brush.qw_md4sum2 = 0;
3394 for (i = 0;i < HEADER_LUMPS;i++)
3396 if (i == LUMP_ENTITIES)
3398 mod->brush.qw_md4sum ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3399 if (i == LUMP_VISIBILITY || i == LUMP_LEAFS || i == LUMP_NODES)
3401 mod->brush.qw_md4sum2 ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3404 Mod_Q1BSP_LoadEntities(&header->lumps[LUMP_ENTITIES]);
3405 Mod_Q1BSP_LoadVertexes(&header->lumps[LUMP_VERTEXES]);
3406 Mod_Q1BSP_LoadEdges(&header->lumps[LUMP_EDGES]);
3407 Mod_Q1BSP_LoadSurfedges(&header->lumps[LUMP_SURFEDGES]);
3408 Mod_Q1BSP_LoadTextures(&header->lumps[LUMP_TEXTURES]);
3409 Mod_Q1BSP_LoadLighting(&header->lumps[LUMP_LIGHTING]);
3410 Mod_Q1BSP_LoadPlanes(&header->lumps[LUMP_PLANES]);
3411 Mod_Q1BSP_LoadTexinfo(&header->lumps[LUMP_TEXINFO]);
3412 Mod_Q1BSP_LoadFaces(&header->lumps[LUMP_FACES]);
3413 Mod_Q1BSP_LoadLeaffaces(&header->lumps[LUMP_MARKSURFACES]);
3414 Mod_Q1BSP_LoadVisibility(&header->lumps[LUMP_VISIBILITY]);
3415 // load submodels before leafs because they contain the number of vis leafs
3416 Mod_Q1BSP_LoadSubmodels(&header->lumps[LUMP_MODELS], &hullinfo);
3417 Mod_Q1BSP_LoadLeafs(&header->lumps[LUMP_LEAFS]);
3418 Mod_Q1BSP_LoadNodes(&header->lumps[LUMP_NODES]);
3419 Mod_Q1BSP_LoadClipnodes(&header->lumps[LUMP_CLIPNODES], &hullinfo);
3421 // check if the map supports transparent water rendering
3422 loadmodel->brush.supportwateralpha = Mod_Q1BSP_CheckWaterAlphaSupport();
3424 if (mod->brushq1.data_compressedpvs)
3425 Mem_Free(mod->brushq1.data_compressedpvs);
3426 mod->brushq1.data_compressedpvs = NULL;
3427 mod->brushq1.num_compressedpvs = 0;
3429 Mod_Q1BSP_MakeHull0();
3430 Mod_Q1BSP_MakePortals();
3432 mod->numframes = 2; // regular and alternate animation
3435 mainmempool = mod->mempool;
3437 // make a single combined shadow mesh to allow optimized shadow volume creation
3438 numshadowmeshtriangles = 0;
3439 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3441 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
3442 numshadowmeshtriangles += surface->num_triangles;
3444 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
3445 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3446 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));
3447 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true, false);
3448 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
3450 if (loadmodel->brush.numsubmodels)
3451 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
3453 if (loadmodel->isworldmodel)
3455 // clear out any stale submodels or worldmodels lying around
3456 // if we did this clear before now, an error might abort loading and
3457 // leave things in a bad state
3458 Mod_RemoveStaleWorldModels(loadmodel);
3461 // LordHavoc: to clear the fog around the original quake submodel code, I
3463 // first of all, some background info on the submodels:
3464 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
3465 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
3466 // now the weird for loop itself:
3467 // the loop functions in an odd way, on each iteration it sets up the
3468 // current 'mod' model (which despite the confusing code IS the model of
3469 // the number i), at the end of the loop it duplicates the model to become
3470 // the next submodel, and loops back to set up the new submodel.
3472 // LordHavoc: now the explanation of my sane way (which works identically):
3473 // set up the world model, then on each submodel copy from the world model
3474 // and set up the submodel with the respective model info.
3475 for (i = 0;i < mod->brush.numsubmodels;i++)
3477 // LordHavoc: this code was originally at the end of this loop, but
3478 // has been transformed to something more readable at the start here.
3483 // LordHavoc: only register submodels if it is the world
3484 // (prevents external bsp models from replacing world submodels with
3486 if (!loadmodel->isworldmodel)
3488 // duplicate the basic information
3489 sprintf(name, "*%i", i);
3490 mod = Mod_FindName(name);
3491 // copy the base model to this one
3493 // rename the clone back to its proper name
3494 strlcpy(mod->name, name, sizeof(mod->name));
3495 // textures and memory belong to the main model
3496 mod->texturepool = NULL;
3497 mod->mempool = NULL;
3500 mod->brush.submodel = i;
3502 if (loadmodel->brush.submodels)
3503 loadmodel->brush.submodels[i] = mod;
3505 bm = &mod->brushq1.submodels[i];
3507 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
3508 for (j=1 ; j<MAX_MAP_HULLS ; j++)
3510 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
3511 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
3514 mod->firstmodelsurface = bm->firstface;
3515 mod->nummodelsurfaces = bm->numfaces;
3517 // make the model surface list (used by shadowing/lighting)
3518 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
3519 for (j = 0;j < mod->nummodelsurfaces;j++)
3520 mod->surfacelist[j] = mod->firstmodelsurface + j;
3522 // this gets altered below if sky is used
3523 mod->DrawSky = NULL;
3524 mod->Draw = R_Q1BSP_Draw;
3525 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
3526 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
3527 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
3528 mod->DrawLight = R_Q1BSP_DrawLight;
3531 mod->brush.TraceLineOfSight = NULL;
3532 mod->brush.GetPVS = NULL;
3533 mod->brush.FatPVS = NULL;
3534 mod->brush.BoxTouchingPVS = NULL;
3535 mod->brush.BoxTouchingLeafPVS = NULL;
3536 mod->brush.BoxTouchingVisibleLeafs = NULL;
3537 mod->brush.FindBoxClusters = NULL;
3538 mod->brush.LightPoint = NULL;
3539 mod->brush.AmbientSoundLevelsForPoint = NULL;
3541 Mod_Q1BSP_BuildLightmapUpdateChains(loadmodel->mempool, mod);
3542 if (mod->nummodelsurfaces)
3544 // LordHavoc: calculate bmodel bounding box rather than trusting what it says
3545 mod->normalmins[0] = mod->normalmins[1] = mod->normalmins[2] = 1000000000.0f;
3546 mod->normalmaxs[0] = mod->normalmaxs[1] = mod->normalmaxs[2] = -1000000000.0f;
3549 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
3551 // we only need to have a drawsky function if it is used(usually only on world model)
3552 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
3553 mod->DrawSky = R_Q1BSP_DrawSky;
3554 // calculate bounding shapes
3555 for (k = 0, vec = (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex);k < surface->num_vertices;k++, vec += 3)
3557 if (mod->normalmins[0] > vec[0]) mod->normalmins[0] = vec[0];
3558 if (mod->normalmins[1] > vec[1]) mod->normalmins[1] = vec[1];
3559 if (mod->normalmins[2] > vec[2]) mod->normalmins[2] = vec[2];
3560 if (mod->normalmaxs[0] < vec[0]) mod->normalmaxs[0] = vec[0];
3561 if (mod->normalmaxs[1] < vec[1]) mod->normalmaxs[1] = vec[1];
3562 if (mod->normalmaxs[2] < vec[2]) mod->normalmaxs[2] = vec[2];
3563 dist = vec[0]*vec[0]+vec[1]*vec[1];
3564 if (modelyawradius < dist)
3565 modelyawradius = dist;
3566 dist += vec[2]*vec[2];
3567 if (modelradius < dist)
3571 modelyawradius = sqrt(modelyawradius);
3572 modelradius = sqrt(modelradius);
3573 mod->yawmins[0] = mod->yawmins[1] = - (mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius);
3574 mod->yawmins[2] = mod->normalmins[2];
3575 mod->yawmaxs[2] = mod->normalmaxs[2];
3576 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
3577 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
3578 mod->radius = modelradius;
3579 mod->radius2 = modelradius * modelradius;
3583 // LordHavoc: empty submodel(lacrima.bsp has such a glitch)
3584 Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
3586 //mod->brushq1.num_visleafs = bm->visleafs;
3589 Mod_Q1BSP_LoadMapBrushes();
3591 //Mod_Q1BSP_ProcessLightList();
3593 if (developer.integer >= 10)
3594 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);
3597 static void Mod_Q2BSP_LoadEntities(lump_t *l)
3601 static void Mod_Q2BSP_LoadPlanes(lump_t *l)
3608 in = (void *)(mod_base + l->fileofs);
3609 if (l->filelen % sizeof(*in))
3610 Host_Error("Mod_Q2BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
3611 count = l->filelen / sizeof(*in);
3612 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3615 loadmodel->num = count;
3617 for (i = 0;i < count;i++, in++, out++)
3623 static void Mod_Q2BSP_LoadVertices(lump_t *l)
3630 in = (void *)(mod_base + l->fileofs);
3631 if (l->filelen % sizeof(*in))
3632 Host_Error("Mod_Q2BSP_LoadVertices: funny lump size in %s",loadmodel->name);
3633 count = l->filelen / sizeof(*in);
3634 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3637 loadmodel->num = count;
3639 for (i = 0;i < count;i++, in++, out++)
3645 static void Mod_Q2BSP_LoadVisibility(lump_t *l)
3652 in = (void *)(mod_base + l->fileofs);
3653 if (l->filelen % sizeof(*in))
3654 Host_Error("Mod_Q2BSP_LoadVisibility: funny lump size in %s",loadmodel->name);
3655 count = l->filelen / sizeof(*in);
3656 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3659 loadmodel->num = count;
3661 for (i = 0;i < count;i++, in++, out++)
3667 static void Mod_Q2BSP_LoadNodes(lump_t *l)
3674 in = (void *)(mod_base + l->fileofs);
3675 if (l->filelen % sizeof(*in))
3676 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
3677 count = l->filelen / sizeof(*in);
3678 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3681 loadmodel->num = count;
3683 for (i = 0;i < count;i++, in++, out++)
3689 static void Mod_Q2BSP_LoadTexInfo(lump_t *l)
3696 in = (void *)(mod_base + l->fileofs);
3697 if (l->filelen % sizeof(*in))
3698 Host_Error("Mod_Q2BSP_LoadTexInfo: funny lump size in %s",loadmodel->name);
3699 count = l->filelen / sizeof(*in);
3700 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3703 loadmodel->num = count;
3705 for (i = 0;i < count;i++, in++, out++)
3711 static void Mod_Q2BSP_LoadFaces(lump_t *l)
3718 in = (void *)(mod_base + l->fileofs);
3719 if (l->filelen % sizeof(*in))
3720 Host_Error("Mod_Q2BSP_LoadFaces: funny lump size in %s",loadmodel->name);
3721 count = l->filelen / sizeof(*in);
3722 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3725 loadmodel->num = count;
3727 for (i = 0;i < count;i++, in++, out++)
3733 static void Mod_Q2BSP_LoadLighting(lump_t *l)
3740 in = (void *)(mod_base + l->fileofs);
3741 if (l->filelen % sizeof(*in))
3742 Host_Error("Mod_Q2BSP_LoadLighting: funny lump size in %s",loadmodel->name);
3743 count = l->filelen / sizeof(*in);
3744 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3747 loadmodel->num = count;
3749 for (i = 0;i < count;i++, in++, out++)
3755 static void Mod_Q2BSP_LoadLeafs(lump_t *l)
3762 in = (void *)(mod_base + l->fileofs);
3763 if (l->filelen % sizeof(*in))
3764 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
3765 count = l->filelen / sizeof(*in);
3766 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3769 loadmodel->num = count;
3771 for (i = 0;i < count;i++, in++, out++)
3777 static void Mod_Q2BSP_LoadLeafFaces(lump_t *l)
3784 in = (void *)(mod_base + l->fileofs);
3785 if (l->filelen % sizeof(*in))
3786 Host_Error("Mod_Q2BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
3787 count = l->filelen / sizeof(*in);
3788 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3791 loadmodel->num = count;
3793 for (i = 0;i < count;i++, in++, out++)
3799 static void Mod_Q2BSP_LoadLeafBrushes(lump_t *l)
3806 in = (void *)(mod_base + l->fileofs);
3807 if (l->filelen % sizeof(*in))
3808 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
3809 count = l->filelen / sizeof(*in);
3810 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3813 loadmodel->num = count;
3815 for (i = 0;i < count;i++, in++, out++)
3821 static void Mod_Q2BSP_LoadEdges(lump_t *l)
3828 in = (void *)(mod_base + l->fileofs);
3829 if (l->filelen % sizeof(*in))
3830 Host_Error("Mod_Q2BSP_LoadEdges: funny lump size in %s",loadmodel->name);
3831 count = l->filelen / sizeof(*in);
3832 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3835 loadmodel->num = count;
3837 for (i = 0;i < count;i++, in++, out++)
3843 static void Mod_Q2BSP_LoadSurfEdges(lump_t *l)
3850 in = (void *)(mod_base + l->fileofs);
3851 if (l->filelen % sizeof(*in))
3852 Host_Error("Mod_Q2BSP_LoadSurfEdges: funny lump size in %s",loadmodel->name);
3853 count = l->filelen / sizeof(*in);
3854 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3857 loadmodel->num = count;
3859 for (i = 0;i < count;i++, in++, out++)
3865 static void Mod_Q2BSP_LoadBrushes(lump_t *l)
3872 in = (void *)(mod_base + l->fileofs);
3873 if (l->filelen % sizeof(*in))
3874 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
3875 count = l->filelen / sizeof(*in);
3876 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3879 loadmodel->num = count;
3881 for (i = 0;i < count;i++, in++, out++)
3887 static void Mod_Q2BSP_LoadBrushSides(lump_t *l)
3894 in = (void *)(mod_base + l->fileofs);
3895 if (l->filelen % sizeof(*in))
3896 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
3897 count = l->filelen / sizeof(*in);
3898 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3901 loadmodel->num = count;
3903 for (i = 0;i < count;i++, in++, out++)
3909 static void Mod_Q2BSP_LoadAreas(lump_t *l)
3916 in = (void *)(mod_base + l->fileofs);
3917 if (l->filelen % sizeof(*in))
3918 Host_Error("Mod_Q2BSP_LoadAreas: funny lump size in %s",loadmodel->name);
3919 count = l->filelen / sizeof(*in);
3920 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3923 loadmodel->num = count;
3925 for (i = 0;i < count;i++, in++, out++)
3931 static void Mod_Q2BSP_LoadAreaPortals(lump_t *l)
3938 in = (void *)(mod_base + l->fileofs);
3939 if (l->filelen % sizeof(*in))
3940 Host_Error("Mod_Q2BSP_LoadAreaPortals: funny lump size in %s",loadmodel->name);
3941 count = l->filelen / sizeof(*in);
3942 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3945 loadmodel->num = count;
3947 for (i = 0;i < count;i++, in++, out++)
3953 static void Mod_Q2BSP_LoadModels(lump_t *l)
3960 in = (void *)(mod_base + l->fileofs);
3961 if (l->filelen % sizeof(*in))
3962 Host_Error("Mod_Q2BSP_LoadModels: funny lump size in %s",loadmodel->name);
3963 count = l->filelen / sizeof(*in);
3964 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3967 loadmodel->num = count;
3969 for (i = 0;i < count;i++, in++, out++)
3975 void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
3978 q2dheader_t *header;
3980 Host_Error("Mod_Q2BSP_Load: not yet implemented");
3982 mod->type = mod_brushq2;
3984 header = (q2dheader_t *)buffer;
3986 i = LittleLong(header->version);
3987 if (i != Q2BSPVERSION)
3988 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
3989 mod->brush.ishlbsp = false;
3990 mod->brush.ismcbsp = false;
3991 if (loadmodel->isworldmodel)
3993 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3994 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3997 mod_base = (unsigned char *)header;
3999 // swap all the lumps
4000 for (i = 0;i < (int) sizeof(*header) / 4;i++)
4001 ((int *)header)[i] = LittleLong(((int *)header)[i]);
4003 // store which lightmap format to use
4004 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
4006 mod->brush.qw_md4sum = 0;
4007 mod->brush.qw_md4sum2 = 0;
4008 for (i = 0;i < Q2HEADER_LUMPS;i++)
4010 if (i == Q2LUMP_ENTITIES)
4012 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
4013 if (i == Q2LUMP_VISIBILITY || i == Q2LUMP_LEAFS || i == Q2LUMP_NODES)
4015 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
4018 Mod_Q2BSP_LoadEntities(&header->lumps[Q2LUMP_ENTITIES]);
4019 Mod_Q2BSP_LoadPlanes(&header->lumps[Q2LUMP_PLANES]);
4020 Mod_Q2BSP_LoadVertices(&header->lumps[Q2LUMP_VERTEXES]);
4021 Mod_Q2BSP_LoadVisibility(&header->lumps[Q2LUMP_VISIBILITY]);
4022 Mod_Q2BSP_LoadNodes(&header->lumps[Q2LUMP_NODES]);
4023 Mod_Q2BSP_LoadTexInfo(&header->lumps[Q2LUMP_TEXINFO]);
4024 Mod_Q2BSP_LoadFaces(&header->lumps[Q2LUMP_FACES]);
4025 Mod_Q2BSP_LoadLighting(&header->lumps[Q2LUMP_LIGHTING]);
4026 Mod_Q2BSP_LoadLeafs(&header->lumps[Q2LUMP_LEAFS]);
4027 Mod_Q2BSP_LoadLeafFaces(&header->lumps[Q2LUMP_LEAFFACES]);
4028 Mod_Q2BSP_LoadLeafBrushes(&header->lumps[Q2LUMP_LEAFBRUSHES]);
4029 Mod_Q2BSP_LoadEdges(&header->lumps[Q2LUMP_EDGES]);
4030 Mod_Q2BSP_LoadSurfEdges(&header->lumps[Q2LUMP_SURFEDGES]);
4031 Mod_Q2BSP_LoadBrushes(&header->lumps[Q2LUMP_BRUSHES]);
4032 Mod_Q2BSP_LoadBrushSides(&header->lumps[Q2LUMP_BRUSHSIDES]);
4033 Mod_Q2BSP_LoadAreas(&header->lumps[Q2LUMP_AREAS]);
4034 Mod_Q2BSP_LoadAreaPortals(&header->lumps[Q2LUMP_AREAPORTALS]);
4035 // LordHavoc: must go last because this makes the submodels
4036 Mod_Q2BSP_LoadModels(&header->lumps[Q2LUMP_MODELS]);
4039 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents);
4040 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents);
4042 static void Mod_Q3BSP_LoadEntities(lump_t *l)
4045 char key[128], value[MAX_INPUTLINE];
4047 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
4048 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
4049 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
4052 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
4053 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
4054 data = loadmodel->brush.entities;
4055 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
4056 if (data && COM_ParseTokenConsole(&data) && com_token[0] == '{')
4060 if (!COM_ParseTokenConsole(&data))
4062 if (com_token[0] == '}')
4063 break; // end of worldspawn
4064 if (com_token[0] == '_')
4065 strlcpy(key, com_token + 1, sizeof(key));
4067 strlcpy(key, com_token, sizeof(key));
4068 while (key[strlen(key)-1] == ' ') // remove trailing spaces
4069 key[strlen(key)-1] = 0;
4070 if (!COM_ParseTokenConsole(&data))
4072 strlcpy(value, com_token, sizeof(value));
4073 if (!strcmp("gridsize", key))
4075 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
4076 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
4082 // FIXME: make MAXSHADERS dynamic
4083 #define Q3SHADER_MAXSHADERS 4096
4084 #define Q3SHADER_MAXLAYERS 8
4086 typedef struct q3shaderinfo_layer_s
4092 char texturename[TEXTURE_MAXFRAMES][Q3PATHLENGTH];
4094 qboolean rgbgenvertex;
4095 qboolean alphagenvertex;
4097 q3shaderinfo_layer_t;
4099 typedef struct q3shaderinfo_s
4101 char name[Q3PATHLENGTH];
4106 qboolean vertexalpha;
4107 qboolean textureblendalpha;
4108 q3shaderinfo_layer_t *primarylayer, *backgroundlayer;
4109 q3shaderinfo_layer_t layers[Q3SHADER_MAXLAYERS];
4110 char skyboxname[Q3PATHLENGTH];
4114 int q3shaders_numshaders;
4115 q3shaderinfo_t q3shaders_shaders[Q3SHADER_MAXSHADERS];
4117 static void Mod_Q3BSP_LoadShaders(void)
4124 q3shaderinfo_t *shader;
4125 q3shaderinfo_layer_t *layer;
4127 char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
4128 search = FS_Search("scripts/*.shader", true, false);
4131 q3shaders_numshaders = 0;
4132 for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
4134 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
4137 while (COM_ParseToken(&text, false))
4139 if (q3shaders_numshaders >= Q3SHADER_MAXSHADERS)
4141 Con_Printf("Mod_Q3BSP_LoadShaders: too many shaders!\n");
4144 shader = q3shaders_shaders + q3shaders_numshaders++;
4145 memset(shader, 0, sizeof(*shader));
4146 strlcpy(shader->name, com_token, sizeof(shader->name));
4147 if (!COM_ParseToken(&text, false) || strcasecmp(com_token, "{"))
4149 Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
4152 while (COM_ParseToken(&text, false))
4154 if (!strcasecmp(com_token, "}"))
4156 if (!strcasecmp(com_token, "{"))
4158 if (shader->numlayers < Q3SHADER_MAXLAYERS)
4160 layer = shader->layers + shader->numlayers++;
4161 layer->rgbgenvertex = false;
4162 layer->alphagenvertex = false;
4163 layer->blendfunc[0] = GL_ONE;
4164 layer->blendfunc[1] = GL_ZERO;
4168 while (COM_ParseToken(&text, false))
4170 if (!strcasecmp(com_token, "}"))
4172 if (!strcasecmp(com_token, "\n"))
4177 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
4179 if (j < TEXTURE_MAXFRAMES + 4)
4181 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
4182 numparameters = j + 1;
4184 if (!COM_ParseToken(&text, true))
4187 if (developer.integer >= 100)
4189 Con_Printf("%s %i: ", shader->name, shader->numlayers - 1);
4190 for (j = 0;j < numparameters;j++)
4191 Con_Printf(" %s", parameter[j]);
4194 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
4196 if (numparameters == 2)
4198 if (!strcasecmp(parameter[1], "add"))
4200 layer->blendfunc[0] = GL_ONE;
4201 layer->blendfunc[1] = GL_ONE;
4203 else if (!strcasecmp(parameter[1], "filter"))
4205 layer->blendfunc[0] = GL_DST_COLOR;
4206 layer->blendfunc[1] = GL_ZERO;
4208 else if (!strcasecmp(parameter[1], "blend"))
4210 layer->blendfunc[0] = GL_SRC_ALPHA;
4211 layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
4214 else if (numparameters == 3)
4217 for (k = 0;k < 2;k++)
4219 if (!strcasecmp(parameter[k+1], "GL_ONE"))
4220 layer->blendfunc[k] = GL_ONE;
4221 else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
4222 layer->blendfunc[k] = GL_ZERO;
4223 else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
4224 layer->blendfunc[k] = GL_SRC_COLOR;
4225 else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
4226 layer->blendfunc[k] = GL_SRC_ALPHA;
4227 else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
4228 layer->blendfunc[k] = GL_DST_COLOR;
4229 else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
4230 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
4231 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
4232 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
4233 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
4234 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
4235 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
4236 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
4237 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
4238 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
4240 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
4244 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
4245 layer->alphatest = true;
4246 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
4248 if (!strcasecmp(parameter[0], "clampmap"))
4249 layer->clampmap = true;
4250 layer->numframes = 1;
4251 layer->framerate = 1;
4252 strlcpy(layer->texturename[0], parameter[1], sizeof(layer->texturename));
4253 if (!strcasecmp(parameter[1], "$lightmap"))
4254 shader->lighting = true;
4256 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
4259 layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
4260 layer->framerate = atof(parameter[1]);
4261 for (i = 0;i < layer->numframes;i++)
4262 strlcpy(layer->texturename[i], parameter[i + 2], sizeof(layer->texturename));
4264 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen") && !strcasecmp(parameter[1], "vertex"))
4265 layer->rgbgenvertex = true;
4266 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen") && !strcasecmp(parameter[1], "vertex"))
4267 layer->alphagenvertex = true;
4268 // break out a level if it was }
4269 if (!strcasecmp(com_token, "}"))
4272 if (layer->rgbgenvertex)
4273 shader->lighting = true;
4274 if (layer->alphagenvertex)
4276 if (layer == shader->layers + 0)
4278 // vertex controlled transparency
4279 shader->vertexalpha = true;
4283 // multilayer terrain shader or similar
4284 shader->textureblendalpha = true;
4290 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
4292 if (j < TEXTURE_MAXFRAMES + 4)
4294 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
4295 numparameters = j + 1;
4297 if (!COM_ParseToken(&text, true))
4300 if (fileindex == 0 && !strcasecmp(com_token, "}"))
4302 if (developer.integer >= 100)
4304 Con_Printf("%s: ", shader->name);
4305 for (j = 0;j < numparameters;j++)
4306 Con_Printf(" %s", parameter[j]);
4309 if (numparameters < 1)
4311 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
4313 if (!strcasecmp(parameter[1], "alphashadow"))
4314 shader->surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
4315 else if (!strcasecmp(parameter[1], "areaportal"))
4316 shader->surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
4317 else if (!strcasecmp(parameter[1], "botclip"))
4318 shader->surfaceparms |= Q3SURFACEPARM_BOTCLIP;
4319 else if (!strcasecmp(parameter[1], "clusterportal"))
4320 shader->surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
4321 else if (!strcasecmp(parameter[1], "detail"))
4322 shader->surfaceparms |= Q3SURFACEPARM_DETAIL;
4323 else if (!strcasecmp(parameter[1], "donotenter"))
4324 shader->surfaceparms |= Q3SURFACEPARM_DONOTENTER;
4325 else if (!strcasecmp(parameter[1], "dust"))
4326 shader->surfaceparms |= Q3SURFACEPARM_DUST;
4327 else if (!strcasecmp(parameter[1], "hint"))
4328 shader->surfaceparms |= Q3SURFACEPARM_HINT;
4329 else if (!strcasecmp(parameter[1], "fog"))
4330 shader->surfaceparms |= Q3SURFACEPARM_FOG;
4331 else if (!strcasecmp(parameter[1], "lava"))
4332 shader->surfaceparms |= Q3SURFACEPARM_LAVA;
4333 else if (!strcasecmp(parameter[1], "lightfilter"))
4334 shader->surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
4335 else if (!strcasecmp(parameter[1], "lightgrid"))
4336 shader->surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
4337 else if (!strcasecmp(parameter[1], "metalsteps"))
4338 shader->surfaceparms |= Q3SURFACEPARM_METALSTEPS;
4339 else if (!strcasecmp(parameter[1], "nodamage"))
4340 shader->surfaceparms |= Q3SURFACEPARM_NODAMAGE;
4341 else if (!strcasecmp(parameter[1], "nodlight"))
4342 shader->surfaceparms |= Q3SURFACEPARM_NODLIGHT;
4343 else if (!strcasecmp(parameter[1], "nodraw"))
4344 shader->surfaceparms |= Q3SURFACEPARM_NODRAW;
4345 else if (!strcasecmp(parameter[1], "nodrop"))
4346 shader->surfaceparms |= Q3SURFACEPARM_NODROP;
4347 else if (!strcasecmp(parameter[1], "noimpact"))
4348 shader->surfaceparms |= Q3SURFACEPARM_NOIMPACT;
4349 else if (!strcasecmp(parameter[1], "nolightmap"))
4350 shader->surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
4351 else if (!strcasecmp(parameter[1], "nomarks"))
4352 shader->surfaceparms |= Q3SURFACEPARM_NOMARKS;
4353 else if (!strcasecmp(parameter[1], "nomipmaps"))
4354 shader->surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
4355 else if (!strcasecmp(parameter[1], "nonsolid"))
4356 shader->surfaceparms |= Q3SURFACEPARM_NONSOLID;
4357 else if (!strcasecmp(parameter[1], "origin"))
4358 shader->surfaceparms |= Q3SURFACEPARM_ORIGIN;
4359 else if (!strcasecmp(parameter[1], "playerclip"))
4360 shader->surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
4361 else if (!strcasecmp(parameter[1], "sky"))
4362 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4363 else if (!strcasecmp(parameter[1], "slick"))
4364 shader->surfaceparms |= Q3SURFACEPARM_SLICK;
4365 else if (!strcasecmp(parameter[1], "slime"))
4366 shader->surfaceparms |= Q3SURFACEPARM_SLIME;
4367 else if (!strcasecmp(parameter[1], "structural"))
4368 shader->surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
4369 else if (!strcasecmp(parameter[1], "trans"))
4370 shader->surfaceparms |= Q3SURFACEPARM_TRANS;
4371 else if (!strcasecmp(parameter[1], "water"))
4372 shader->surfaceparms |= Q3SURFACEPARM_WATER;
4373 else if (!strcasecmp(parameter[1], "pointlight"))
4374 shader->surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
4375 else if (!strcasecmp(parameter[1], "antiportal"))
4376 shader->surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
4378 Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
4380 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
4382 // some q3 skies don't have the sky parm set
4383 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4384 strlcpy(shader->skyboxname, parameter[1], sizeof(shader->skyboxname));
4386 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
4388 // some q3 skies don't have the sky parm set
4389 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4390 if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
4391 strlcpy(shader->skyboxname, parameter[1], sizeof(shader->skyboxname));
4393 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
4395 if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
4396 shader->textureflags |= Q3TEXTUREFLAG_TWOSIDED;
4398 else if (!strcasecmp(parameter[0], "nomipmaps"))
4399 shader->surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
4400 else if (!strcasecmp(parameter[0], "nopicmip"))
4401 shader->textureflags |= Q3TEXTUREFLAG_NOPICMIP;
4402 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
4404 if (!strcasecmp(parameter[1], "autosprite") && numparameters == 2)
4405 shader->textureflags |= Q3TEXTUREFLAG_AUTOSPRITE;
4406 if (!strcasecmp(parameter[1], "autosprite2") && numparameters == 2)
4407 shader->textureflags |= Q3TEXTUREFLAG_AUTOSPRITE2;
4410 // identify if this is a blended terrain shader or similar
4411 if (shader->numlayers)
4413 shader->backgroundlayer = NULL;
4414 shader->primarylayer = shader->layers + 0;
4415 if ((shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ZERO && !shader->layers[0].alphatest)
4416 && ((shader->layers[1].blendfunc[0] == GL_SRC_ALPHA && shader->layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA && !shader->layers[0].alphatest)
4417 || (shader->layers[1].blendfunc[0] == GL_ONE && shader->layers[1].blendfunc[1] == GL_ZERO && shader->layers[1].alphatest)))
4419 // terrain blending or other effects
4420 shader->backgroundlayer = shader->layers + 0;
4421 shader->primarylayer = shader->layers + 1;
4423 // now see if the lightmap came first, and if so choose the second texture instead
4424 if (!strcasecmp(shader->primarylayer->texturename[0], "$lightmap"))
4426 shader->backgroundlayer = NULL;
4427 shader->primarylayer = shader->layers + 1;
4435 q3shaderinfo_t *Mod_Q3BSP_LookupShader(const char *name)
4438 for (i = 0;i < Q3SHADER_MAXSHADERS;i++)
4439 if (!strcasecmp(q3shaders_shaders[i].name, name))
4440 return q3shaders_shaders + i;
4444 static void Mod_Q3BSP_LoadTextures(lump_t *l)
4450 in = (q3dtexture_t *)(mod_base + l->fileofs);
4451 if (l->filelen % sizeof(*in))
4452 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
4453 count = l->filelen / sizeof(*in);
4454 out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4456 loadmodel->data_textures = out;
4457 loadmodel->num_textures = count;
4459 // parse the Q3 shader files
4460 Mod_Q3BSP_LoadShaders();
4463 for (i = 0;i < count;i++, in++, out++)
4465 q3shaderinfo_t *shader;
4466 strlcpy (out->name, in->name, sizeof (out->name));
4467 out->surfaceflags = LittleLong(in->surfaceflags);
4468 out->supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in->contents));
4469 shader = Mod_Q3BSP_LookupShader(out->name);
4472 out->surfaceparms = shader->surfaceparms;
4473 out->textureflags = shader->textureflags;
4474 out->basematerialflags = 0;
4475 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
4477 out->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
4478 if (shader->skyboxname[0])
4480 // quake3 seems to append a _ to the skybox name, so this must do so as well
4481 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
4484 else if ((out->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
4485 out->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
4486 else if (shader->surfaceparms & Q3SURFACEPARM_LAVA)
4487 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_NOSHADOW;
4488 else if (shader->surfaceparms & Q3SURFACEPARM_SLIME)
4489 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_WATERALPHA | MATERIALFLAG_NOSHADOW;
4490 else if (shader->surfaceparms & Q3SURFACEPARM_WATER)
4491 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_WATERALPHA | MATERIALFLAG_NOSHADOW;
4493 out->basematerialflags |= MATERIALFLAG_WALL;
4494 if (shader->layers[0].alphatest)
4495 out->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
4496 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
4497 out->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
4498 if (shader->textureflags & (Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2))
4499 out->basematerialflags |= MATERIALFLAG_NOSHADOW;
4500 out->customblendfunc[0] = GL_ONE;
4501 out->customblendfunc[1] = GL_ZERO;
4502 if (shader->numlayers > 0)
4504 out->customblendfunc[0] = shader->layers[0].blendfunc[0];
4505 out->customblendfunc[1] = shader->layers[0].blendfunc[1];
4507 Q3 shader blendfuncs actually used in the game (* = supported by DP)
4508 * additive GL_ONE GL_ONE
4509 additive weird GL_ONE GL_SRC_ALPHA
4510 additive weird 2 GL_ONE GL_ONE_MINUS_SRC_ALPHA
4511 * alpha GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
4512 alpha inverse GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
4513 brighten GL_DST_COLOR GL_ONE
4514 brighten GL_ONE GL_SRC_COLOR
4515 brighten weird GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
4516 brighten weird 2 GL_DST_COLOR GL_SRC_ALPHA
4517 * modulate GL_DST_COLOR GL_ZERO
4518 * modulate GL_ZERO GL_SRC_COLOR
4519 modulate inverse GL_ZERO GL_ONE_MINUS_SRC_COLOR
4520 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
4521 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
4522 * modulate x2 GL_DST_COLOR GL_SRC_COLOR
4523 * no blend GL_ONE GL_ZERO
4524 nothing GL_ZERO GL_ONE
4526 // if not opaque, figure out what blendfunc to use
4527 if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
4529 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
4530 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
4531 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
4532 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
4533 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
4534 out->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
4536 out->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
4539 if (!shader->lighting)
4540 out->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
4541 if (shader->primarylayer && cls.state != ca_dedicated)
4544 out->numskinframes = shader->primarylayer->numframes;
4545 out->skinframerate = shader->primarylayer->framerate;
4546 for (j = 0;j < shader->primarylayer->numframes;j++)
4547 if (!(out->skinframes[j] = R_SkinFrame_LoadExternal(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))))
4548 Con_DPrintf("%s: could not load texture \"%s\" (frame %i) for shader \"%s\"\n", loadmodel->name, shader->primarylayer->texturename[j], j, out->name);
4550 if (shader->backgroundlayer && cls.state != ca_dedicated)
4553 out->backgroundnumskinframes = shader->backgroundlayer->numframes;
4554 out->backgroundskinframerate = shader->backgroundlayer->framerate;
4555 for (j = 0;j < shader->backgroundlayer->numframes;j++)
4557 if (!(out->backgroundskinframes[j] = R_SkinFrame_LoadExternal(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))))
4559 Con_DPrintf("%s: could not load texture \"%s\" (frame %i) for shader \"%s\"\n", loadmodel->name, shader->backgroundlayer->texturename[j], j, out->name);
4560 out->backgroundskinframes[j] = R_SkinFrame_LoadMissing();
4565 else if (!strcmp(out->name, "noshader"))
4566 out->surfaceparms = 0;
4570 Con_DPrintf("%s: No shader found for texture \"%s\"\n", loadmodel->name, out->name);
4571 out->surfaceparms = 0;
4572 if (out->surfaceflags & Q3SURFACEFLAG_NODRAW)
4573 out->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
4574 else if (out->surfaceflags & Q3SURFACEFLAG_SKY)
4575 out->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
4577 out->basematerialflags |= MATERIALFLAG_WALL;
4578 // these are defaults
4579 //if (!strncmp(out->name, "textures/skies/", 15))
4580 // out->surfaceparms |= Q3SURFACEPARM_SKY;
4581 //if (!strcmp(out->name, "caulk") || !strcmp(out->name, "common/caulk") || !strcmp(out->name, "textures/common/caulk")
4582 // || !strcmp(out->name, "nodraw") || !strcmp(out->name, "common/nodraw") || !strcmp(out->name, "textures/common/nodraw"))
4583 // out->surfaceparms |= Q3SURFACEPARM_NODRAW;
4584 //if (R_TextureHasAlpha(out->skinframes[0].base))
4585 // out->surfaceparms |= Q3SURFACEPARM_TRANS;
4586 out->numskinframes = 1;
4587 if (cls.state != ca_dedicated)
4588 if (!(out->skinframes[0] = R_SkinFrame_LoadExternal(out->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP)))
4589 Con_DPrintf("%s: could not load texture for missing shader \"%s\"\n", loadmodel->name, out->name);
4591 // init the animation variables
4592 out->currentframe = out;
4593 if (out->numskinframes < 1)
4594 out->numskinframes = 1;
4595 if (!out->skinframes[0])
4596 out->skinframes[0] = R_SkinFrame_LoadMissing();
4597 out->currentskinframe = out->skinframes[0];
4598 out->backgroundcurrentskinframe = out->backgroundskinframes[0];
4601 Con_DPrintf("%s: %i textures missing shaders\n", loadmodel->name, c);
4604 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
4610 in = (q3dplane_t *)(mod_base + l->fileofs);
4611 if (l->filelen % sizeof(*in))
4612 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
4613 count = l->filelen / sizeof(*in);
4614 out = (mplane_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4616 loadmodel->brush.data_planes = out;
4617 loadmodel->brush.num_planes = count;
4619 for (i = 0;i < count;i++, in++, out++)
4621 out->normal[0] = LittleFloat(in->normal[0]);
4622 out->normal[1] = LittleFloat(in->normal[1]);
4623 out->normal[2] = LittleFloat(in->normal[2]);
4624 out->dist = LittleFloat(in->dist);
4629 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
4632 q3mbrushside_t *out;
4635 in = (q3dbrushside_t *)(mod_base + l->fileofs);
4636 if (l->filelen % sizeof(*in))
4637 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4638 count = l->filelen / sizeof(*in);
4639 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4641 loadmodel->brush.data_brushsides = out;
4642 loadmodel->brush.num_brushsides = count;
4644 for (i = 0;i < count;i++, in++, out++)
4646 n = LittleLong(in->planeindex);
4647 if (n < 0 || n >= loadmodel->brush.num_planes)
4648 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
4649 out->plane = loadmodel->brush.data_planes + n;
4650 n = LittleLong(in->textureindex);
4651 if (n < 0 || n >= loadmodel->num_textures)
4652 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4653 out->texture = loadmodel->data_textures + n;
4657 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
4661 int i, j, n, c, count, maxplanes;
4662 colplanef_t *planes;
4664 in = (q3dbrush_t *)(mod_base + l->fileofs);
4665 if (l->filelen % sizeof(*in))
4666 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4667 count = l->filelen / sizeof(*in);
4668 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4670 loadmodel->brush.data_brushes = out;
4671 loadmodel->brush.num_brushes = count;
4676 for (i = 0;i < count;i++, in++, out++)
4678 n = LittleLong(in->firstbrushside);
4679 c = LittleLong(in->numbrushsides);
4680 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
4681 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", n, n + c, loadmodel->brush.num_brushsides);
4682 out->firstbrushside = loadmodel->brush.data_brushsides + n;
4683 out->numbrushsides = c;
4684 n = LittleLong(in->textureindex);
4685 if (n < 0 || n >= loadmodel->num_textures)
4686 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4687 out->texture = loadmodel->data_textures + n;
4689 // make a list of mplane_t structs to construct a colbrush from
4690 if (maxplanes < out->numbrushsides)
4692 maxplanes = out->numbrushsides;
4695 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
4697 for (j = 0;j < out->numbrushsides;j++)
4699 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4700 planes[j].dist = out->firstbrushside[j].plane->dist;
4701 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
4702 planes[j].texture = out->firstbrushside[j].texture;
4704 // make the colbrush from the planes
4705 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents);
4711 static void Mod_Q3BSP_LoadEffects(lump_t *l)
4717 in = (q3deffect_t *)(mod_base + l->fileofs);
4718 if (l->filelen % sizeof(*in))
4719 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
4720 count = l->filelen / sizeof(*in);
4721 out = (q3deffect_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4723 loadmodel->brushq3.data_effects = out;
4724 loadmodel->brushq3.num_effects = count;
4726 for (i = 0;i < count;i++, in++, out++)
4728 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
4729 n = LittleLong(in->brushindex);
4730 if (n >= loadmodel->brush.num_brushes)
4732 Con_Printf("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes), setting to -1\n", n, loadmodel->brush.num_brushes);
4735 out->brushindex = n;
4736 out->unknown = LittleLong(in->unknown);
4740 static void Mod_Q3BSP_LoadVertices(lump_t *l)
4745 in = (q3dvertex_t *)(mod_base + l->fileofs);
4746 if (l->filelen % sizeof(*in))
4747 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
4748 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
4749 loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 3 + 2 + 2 + 4)));
4750 loadmodel->brushq3.data_normal3f = loadmodel->brushq3.data_vertex3f + count * 3;
4751 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_normal3f + count * 3;
4752 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
4753 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
4755 for (i = 0;i < count;i++, in++)
4757 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
4758 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
4759 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
4760 loadmodel->brushq3.data_normal3f[i * 3 + 0] = LittleFloat(in->normal3f[0]);
4761 loadmodel->brushq3.data_normal3f[i * 3 + 1] = LittleFloat(in->normal3f[1]);
4762 loadmodel->brushq3.data_normal3f[i * 3 + 2] = LittleFloat(in->normal3f[2]);
4763 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
4764 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
4765 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
4766 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
4767 // svector/tvector are calculated later in face loading
4768 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
4769 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
4770 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
4771 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
4775 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
4781 in = (int *)(mod_base + l->fileofs);
4782 if (l->filelen % sizeof(int[3]))
4783 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
4784 count = l->filelen / sizeof(*in);
4785 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4787 loadmodel->brushq3.num_triangles = count / 3;
4788 loadmodel->brushq3.data_element3i = out;
4790 for (i = 0;i < count;i++, in++, out++)
4792 *out = LittleLong(*in);
4793 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
4795 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
4801 static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
4804 int i, j, count, power, power2, mask, endlightmap;
4809 if (cls.state == ca_dedicated)
4811 in = (q3dlightmap_t *)(mod_base + l->fileofs);
4812 if (l->filelen % sizeof(*in))
4813 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
4814 count = l->filelen / sizeof(*in);
4815 loadmodel->brushq3.num_originallightmaps = count;
4817 // now check the surfaces to see if any of them index an odd numbered
4818 // lightmap, if so this is not a deluxemapped bsp file
4820 // also check what lightmaps are actually used, because q3map2 sometimes
4821 // (always?) makes an unused one at the end, which
4822 // q3map2 sometimes (or always?) makes a second blank lightmap for no
4823 // reason when only one lightmap is used, which can throw off the
4824 // deluxemapping detection method, so check 2-lightmap bsp's specifically
4825 // to see if the second lightmap is blank, if so it is not deluxemapped.
4826 loadmodel->brushq3.deluxemapping = !(count & 1);
4827 loadmodel->brushq3.deluxemapping_modelspace = true;
4829 if (loadmodel->brushq3.deluxemapping)
4831 int facecount = faceslump->filelen / sizeof(q3dface_t);
4832 q3dface_t *faces = (q3dface_t *)(mod_base + faceslump->fileofs);
4833 for (i = 0;i < facecount;i++)
4835 j = LittleLong(faces[i].lightmapindex);
4838 endlightmap = max(endlightmap, j + 1);
4839 if ((j & 1) || j + 1 >= count)
4841 loadmodel->brushq3.deluxemapping = false;
4847 if (endlightmap < 2)
4848 loadmodel->brushq3.deluxemapping = false;
4850 // q3map2 sometimes (or always?) makes a second blank lightmap for no
4851 // reason when only one lightmap is used, which can throw off the
4852 // deluxemapping detection method, so check 2-lightmap bsp's specifically
4853 // to see if the second lightmap is blank, if so it is not deluxemapped.
4854 if (endlightmap == 1 && count == 2)
4857 for (i = 0;i < 128*128*3;i++)
4862 // all pixels in the unused lightmap were black...
4863 loadmodel->brushq3.deluxemapping = false;
4867 Con_DPrintf("%s is %sdeluxemapped\n", loadmodel->name, loadmodel->brushq3.deluxemapping ? "" : "not ");
4869 // figure out what the most reasonable merge power is within limits
4870 loadmodel->brushq3.num_lightmapmergepower = 0;
4871 for (power = 1;power <= mod_q3bsp_lightmapmergepower.integer && (1 << power) <= gl_max_texture_size && (1 << (power * 2)) < 4 * (count >> loadmodel->brushq3.deluxemapping);power++)
4872 loadmodel->brushq3.num_lightmapmergepower = power;
4873 loadmodel->brushq3.num_lightmapmerge = 1 << loadmodel->brushq3.num_lightmapmergepower;
4875 loadmodel->brushq3.num_mergedlightmaps = ((count >> loadmodel->brushq3.deluxemapping) + (1 << (loadmodel->brushq3.num_lightmapmergepower * 2)) - 1) >> (loadmodel->brushq3.num_lightmapmergepower * 2);
4876 loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4877 if (loadmodel->brushq3.deluxemapping)
4878 loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4880 // allocate a texture pool if we need it
4881 if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
4882 loadmodel->texturepool = R_AllocTexturePool();
4884 j = 128 << loadmodel->brushq3.num_lightmapmergepower;
4885 if (loadmodel->brushq3.data_lightmaps)
4886 for (i = 0;i < loadmodel->brushq3.num_mergedlightmaps;i++)
4887 loadmodel->brushq3.data_lightmaps[i] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", i), j, j, NULL, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
4889 if (loadmodel->brushq3.data_deluxemaps)
4890 for (i = 0;i < loadmodel->brushq3.num_mergedlightmaps;i++)
4891 loadmodel->brushq3.data_deluxemaps[i] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", i), j, j, NULL, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
4893 power = loadmodel->brushq3.num_lightmapmergepower;
4895 mask = (1 << power) - 1;
4896 for (i = 0;i < count;i++)
4898 j = i >> loadmodel->brushq3.deluxemapping;
4899 if (loadmodel->brushq3.deluxemapping && (i & 1))
4900 R_UpdateTexture(loadmodel->brushq3.data_deluxemaps[j >> power2], in[i].rgb, (j & mask) * 128, ((j >> power) & mask) * 128, 128, 128);
4902 R_UpdateTexture(loadmodel->brushq3.data_lightmaps [j >> power2], in[i].rgb, (j & mask) * 128, ((j >> power) & mask) * 128, 128, 128);
4906 static void Mod_Q3BSP_LoadFaces(lump_t *l)
4908 q3dface_t *in, *oldin;
4909 msurface_t *out, *oldout;
4910 int i, oldi, j, n, count, invalidelements, patchsize[2], finalwidth, finalheight, xtess, ytess, finalvertices, finaltriangles, firstvertex, firstelement, type, oldnumtriangles, oldnumtriangles2, meshvertices, meshtriangles, numvertices, numtriangles;
4911 float lightmaptcbase[2], lightmaptcscale;
4912 //int *originalelement3i;
4913 //int *originalneighbor3i;
4914 float *originalvertex3f;
4915 //float *originalsvector3f;
4916 //float *originaltvector3f;
4917 float *originalnormal3f;
4918 float *originalcolor4f;
4919 float *originaltexcoordtexture2f;
4920 float *originaltexcoordlightmap2f;
4923 in = (q3dface_t *)(mod_base + l->fileofs);
4924 if (l->filelen % sizeof(*in))
4925 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
4926 count = l->filelen / sizeof(*in);
4927 out = (msurface_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4929 loadmodel->data_surfaces = out;
4930 loadmodel->num_surfaces = count;
4938 for (;i < count;i++, in++, out++)
4940 // check face type first
4941 type = LittleLong(in->type);
4942 if (type != Q3FACETYPE_POLYGON
4943 && type != Q3FACETYPE_PATCH
4944 && type != Q3FACETYPE_MESH
4945 && type != Q3FACETYPE_FLARE)
4947 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
4951 n = LittleLong(in->textureindex);
4952 if (n < 0 || n >= loadmodel->num_textures)
4954 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
4957 out->texture = loadmodel->data_textures + n;
4958 n = LittleLong(in->effectindex);
4959 if (n < -1 || n >= loadmodel->brushq3.num_effects)
4961 if (developer.integer >= 100)
4962 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
4968 out->effect = loadmodel->brushq3.data_effects + n;
4970 if (cls.state != ca_dedicated)
4972 out->lightmaptexture = NULL;
4973 out->deluxemaptexture = r_texture_blanknormalmap;
4974 n = LittleLong(in->lightmapindex);
4977 else if (n >= loadmodel->brushq3.num_originallightmaps)
4979 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_originallightmaps);
4984 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n >> (loadmodel->brushq3.num_lightmapmergepower * 2 + loadmodel->brushq3.deluxemapping)];
4985 if (loadmodel->brushq3.deluxemapping)
4986 out->deluxemaptexture = loadmodel->brushq3.data_deluxemaps[n >> (loadmodel->brushq3.num_lightmapmergepower * 2 + loadmodel->brushq3.deluxemapping)];
4990 firstvertex = LittleLong(in->firstvertex);
4991 numvertices = LittleLong(in->numvertices);
4992 firstelement = LittleLong(in->firstelement);
4993 numtriangles = LittleLong(in->numelements) / 3;
4994 if (numtriangles * 3 != LittleLong(in->numelements))
4996 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));
4999 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
5001 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);
5004 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
5006 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);
5011 case Q3FACETYPE_POLYGON:
5012 case Q3FACETYPE_MESH:
5013 // no processing necessary
5015 case Q3FACETYPE_PATCH:
5016 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
5017 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
5018 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))
5020 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
5023 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
5024 // convert patch to Q3FACETYPE_MESH
5025 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5026 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5027 // bound to user settings
5028 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
5029 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
5030 // bound to sanity settings
5031 xtess = bound(1, xtess, 1024);
5032 ytess = bound(1, ytess, 1024);
5033 // bound to user limit on vertices
5034 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
5041 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
5042 finalheight = ((patchsize[1] - 1) * ytess) + 1;
5043 numvertices = finalwidth * finalheight;
5044 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
5046 case Q3FACETYPE_FLARE:
5047 if (developer.integer >= 100)
5048 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
5052 out->num_vertices = numvertices;
5053 out->num_triangles = numtriangles;
5054 meshvertices += out->num_vertices;
5055 meshtriangles += out->num_triangles;
5061 Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true, false);
5064 for (;i < count && meshvertices + out->num_vertices <= loadmodel->surfmesh.num_vertices;i++, in++, out++)
5066 if (out->num_vertices < 3 || out->num_triangles < 1)
5069 type = LittleLong(in->type);
5070 firstvertex = LittleLong(in->firstvertex);
5071 firstelement = LittleLong(in->firstelement);
5072 out->num_firstvertex = meshvertices;
5073 out->num_firsttriangle = meshtriangles;
5076 case Q3FACETYPE_POLYGON:
5077 case Q3FACETYPE_MESH:
5078 // no processing necessary, except for lightmap merging
5079 for (j = 0;j < out->num_vertices;j++)
5081 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
5082 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
5083 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
5084 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 0];
5085 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 1];
5086 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 2];
5087 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
5088 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
5089 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
5090 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
5091 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
5092 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
5093 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
5094 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
5096 for (j = 0;j < out->num_triangles*3;j++)
5097 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
5099 case Q3FACETYPE_PATCH:
5100 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
5101 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
5102 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
5103 originalnormal3f = loadmodel->brushq3.data_normal3f + firstvertex * 3;
5104 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
5105 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
5106 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
5107 // convert patch to Q3FACETYPE_MESH
5108 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5109 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5110 // bound to user settings
5111 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
5112 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
5113 // bound to sanity settings
5114 xtess = bound(1, xtess, 1024);
5115 ytess = bound(1, ytess, 1024);
5116 // bound to user limit on vertices
5117 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
5124 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
5125 finalheight = ((patchsize[1] - 1) * ytess) + 1;
5126 finalvertices = finalwidth * finalheight;
5127 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
5128 type = Q3FACETYPE_MESH;
5129 // generate geometry
5130 // (note: normals are skipped because they get recalculated)
5131 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
5132 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalnormal3f, xtess, ytess);
5133 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
5134 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
5135 Q3PatchTesselateFloat(4, sizeof(float[4]), (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
5136 Q3PatchTriangleElements((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
5137 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);
5138 if (developer.integer >= 100)
5140 if (out->num_triangles < finaltriangles)
5141 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);
5143 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);
5145 // q3map does not put in collision brushes for curves... ugh
5146 // build the lower quality collision geometry
5147 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
5148 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
5149 // bound to user settings
5150 xtess = bound(r_subdivisions_collision_mintess.integer, xtess, r_subdivisions_collision_maxtess.integer);
5151 ytess = bound(r_subdivisions_collision_mintess.integer, ytess, r_subdivisions_collision_maxtess.integer);
5152 // bound to sanity settings
5153 xtess = bound(1, xtess, 1024);
5154 ytess = bound(1, ytess, 1024);
5155 // bound to user limit on vertices
5156 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_collision_maxvertices.integer, 262144))
5163 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
5164 finalheight = ((patchsize[1] - 1) * ytess) + 1;
5165 finalvertices = finalwidth * finalheight;
5166 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
5168 out->data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
5169 out->data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
5170 out->num_collisionvertices = finalvertices;
5171 out->num_collisiontriangles = finaltriangles;
5172 Q3PatchTesselateFloat(3, sizeof(float[3]), out->data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
5173 Q3PatchTriangleElements(out->data_collisionelement3i, finalwidth, finalheight, 0);
5175 //Mod_SnapVertices(3, out->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), 0.25);
5176 Mod_SnapVertices(3, out->num_collisionvertices, out->data_collisionvertex3f, 1);
5178 oldnumtriangles = out->num_triangles;
5179 oldnumtriangles2 = out->num_collisiontriangles;
5180 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(out->num_collisiontriangles, out->data_collisionelement3i, out->data_collisionelement3i, out->data_collisionvertex3f);
5181 if (developer.integer >= 100)
5182 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);
5187 meshvertices += out->num_vertices;
5188 meshtriangles += out->num_triangles;
5189 for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
5190 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)
5192 if (invalidelements)
5194 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);
5195 for (j = 0;j < out->num_triangles * 3;j++)
5197 Con_Printf(" %i", (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
5198 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)
5199 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
5203 // calculate a bounding box
5204 VectorClear(out->mins);
5205 VectorClear(out->maxs);
5206 if (out->num_vertices)
5208 int lightmapindex = LittleLong(in->lightmapindex);
5209 if (lightmapindex >= 0 && cls.state != ca_dedicated)
5211 lightmapindex >>= loadmodel->brushq3.deluxemapping;
5212 lightmaptcscale = 1.0f / loadmodel->brushq3.num_lightmapmerge;
5213 lightmaptcbase[0] = ((lightmapindex ) & (loadmodel->brushq3.num_lightmapmerge - 1)) * lightmaptcscale;
5214 lightmaptcbase[1] = ((lightmapindex >> loadmodel->brushq3.num_lightmapmergepower) & (loadmodel->brushq3.num_lightmapmerge - 1)) * lightmaptcscale;
5215 // modify the lightmap texcoords to match this region of the merged lightmap
5216 for (j = 0, v = loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex;j < out->num_vertices;j++, v += 2)
5218 v[0] = v[0] * lightmaptcscale + lightmaptcbase[0];
5219 v[1] = v[1] * lightmaptcscale + lightmaptcbase[1];
5222 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->mins);
5223 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->maxs);
5224 for (j = 1, v = (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
5226 out->mins[0] = min(out->mins[0], v[0]);
5227 out->maxs[0] = max(out->maxs[0], v[0]);
5228 out->mins[1] = min(out->mins[1], v[1]);
5229 out->maxs[1] = max(out->maxs[1], v[1]);
5230 out->mins[2] = min(out->mins[2], v[2]);
5231 out->maxs[2] = max(out->maxs[2], v[2]);
5233 out->mins[0] -= 1.0f;
5234 out->mins[1] -= 1.0f;
5235 out->mins[2] -= 1.0f;
5236 out->maxs[0] += 1.0f;
5237 out->maxs[1] += 1.0f;
5238 out->maxs[2] += 1.0f;
5240 // set lightmap styles for consistency with q1bsp
5241 //out->lightmapinfo->styles[0] = 0;
5242 //out->lightmapinfo->styles[1] = 255;
5243 //out->lightmapinfo->styles[2] = 255;
5244 //out->lightmapinfo->styles[3] = 255;
5247 // for per pixel lighting
5248 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);
5250 // free the no longer needed vertex data
5251 loadmodel->brushq3.num_vertices = 0;
5252 if (loadmodel->brushq3.data_vertex3f)
5253 Mem_Free(loadmodel->brushq3.data_vertex3f);
5254 loadmodel->brushq3.data_vertex3f = NULL;
5255 loadmodel->brushq3.data_normal3f = NULL;
5256 loadmodel->brushq3.data_texcoordtexture2f = NULL;
5257 loadmodel->brushq3.data_texcoordlightmap2f = NULL;
5258 loadmodel->brushq3.data_color4f = NULL;
5259 // free the no longer needed triangle data
5260 loadmodel->brushq3.num_triangles = 0;
5261 if (loadmodel->brushq3.data_element3i)
5262 Mem_Free(loadmodel->brushq3.data_element3i);
5263 loadmodel->brushq3.data_element3i = NULL;
5266 static void Mod_Q3BSP_LoadModels(lump_t *l)
5270 int i, j, n, c, count;
5272 in = (q3dmodel_t *)(mod_base + l->fileofs);
5273 if (l->filelen % sizeof(*in))
5274 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
5275 count = l->filelen / sizeof(*in);
5276 out = (q3dmodel_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5278 loadmodel->brushq3.data_models = out;
5279 loadmodel->brushq3.num_models = count;
5281 for (i = 0;i < count;i++, in++, out++)
5283 for (j = 0;j < 3;j++)
5285 out->mins[j] = LittleFloat(in->mins[j]);
5286 out->maxs[j] = LittleFloat(in->maxs[j]);
5288 n = LittleLong(in->firstface);
5289 c = LittleLong(in->numfaces);
5290 if (n < 0 || n + c > loadmodel->num_surfaces)
5291 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)", n, n + c, loadmodel->num_surfaces);
5294 n = LittleLong(in->firstbrush);
5295 c = LittleLong(in->numbrushes);
5296 if (n < 0 || n + c > loadmodel->brush.num_brushes)
5297 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)", n, n + c, loadmodel->brush.num_brushes);
5298 out->firstbrush = n;
5299 out->numbrushes = c;
5303 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
5309 in = (int *)(mod_base + l->fileofs);
5310 if (l->filelen % sizeof(*in))
5311 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
5312 count = l->filelen / sizeof(*in);
5313 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5315 loadmodel->brush.data_leafbrushes = out;
5316 loadmodel->brush.num_leafbrushes = count;
5318 for (i = 0;i < count;i++, in++, out++)
5320 n = LittleLong(*in);
5321 if (n < 0 || n >= loadmodel->brush.num_brushes)
5322 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)", n, loadmodel->brush.num_brushes);
5327 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
5333 in = (int *)(mod_base + l->fileofs);
5334 if (l->filelen % sizeof(*in))
5335 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
5336 count = l->filelen / sizeof(*in);
5337 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5339 loadmodel->brush.data_leafsurfaces = out;
5340 loadmodel->brush.num_leafsurfaces = count;
5342 for (i = 0;i < count;i++, in++, out++)
5344 n = LittleLong(*in);
5345 if (n < 0 || n >= loadmodel->num_surfaces)
5346 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)", n, loadmodel->num_surfaces);
5351 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
5355 int i, j, n, c, count;
5357 in = (q3dleaf_t *)(mod_base + l->fileofs);
5358 if (l->filelen % sizeof(*in))
5359 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
5360 count = l->filelen / sizeof(*in);
5361 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5363 loadmodel->brush.data_leafs = out;
5364 loadmodel->brush.num_leafs = count;
5366 for (i = 0;i < count;i++, in++, out++)
5370 out->clusterindex = LittleLong(in->clusterindex);
5371 out->areaindex = LittleLong(in->areaindex);
5372 for (j = 0;j < 3;j++)
5374 // yes the mins/maxs are ints
5375 out->mins[j] = LittleLong(in->mins[j]) - 1;
5376 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5378 n = LittleLong(in->firstleafface);
5379 c = LittleLong(in->numleaffaces);
5380 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
5381 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)", n, n + c, loadmodel->brush.num_leafsurfaces);
5382 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
5383 out->numleafsurfaces = c;
5384 n = LittleLong(in->firstleafbrush);
5385 c = LittleLong(in->numleafbrushes);
5386 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
5387 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)", n, n + c, loadmodel->brush.num_leafbrushes);
5388 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
5389 out->numleafbrushes = c;
5393 static void Mod_Q3BSP_LoadNodes(lump_t *l)
5399 in = (q3dnode_t *)(mod_base + l->fileofs);
5400 if (l->filelen % sizeof(*in))
5401 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
5402 count = l->filelen / sizeof(*in);
5403 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5405 loadmodel->brush.data_nodes = out;
5406 loadmodel->brush.num_nodes = count;
5408 for (i = 0;i < count;i++, in++, out++)
5411 n = LittleLong(in->planeindex);
5412 if (n < 0 || n >= loadmodel->brush.num_planes)
5413 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5414 out->plane = loadmodel->brush.data_planes + n;
5415 for (j = 0;j < 2;j++)
5417 n = LittleLong(in->childrenindex[j]);
5420 if (n >= loadmodel->brush.num_nodes)
5421 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)", n, loadmodel->brush.num_nodes);
5422 out->children[j] = loadmodel->brush.data_nodes + n;
5427 if (n >= loadmodel->brush.num_leafs)
5428 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)", n, loadmodel->brush.num_leafs);
5429 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
5432 for (j = 0;j < 3;j++)
5434 // yes the mins/maxs are ints
5435 out->mins[j] = LittleLong(in->mins[j]) - 1;
5436 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5440 // set the parent pointers
5441 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
5444 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
5447 q3dlightgrid_t *out;
5450 in = (q3dlightgrid_t *)(mod_base + l->fileofs);
5451 if (l->filelen % sizeof(*in))
5452 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
5453 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
5454 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
5455 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
5456 loadmodel->brushq3.num_lightgrid_imins[0] = (int)ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5457 loadmodel->brushq3.num_lightgrid_imins[1] = (int)ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5458 loadmodel->brushq3.num_lightgrid_imins[2] = (int)ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5459 loadmodel->brushq3.num_lightgrid_imaxs[0] = (int)floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5460 loadmodel->brushq3.num_lightgrid_imaxs[1] = (int)floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5461 loadmodel->brushq3.num_lightgrid_imaxs[2] = (int)floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5462 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
5463 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
5464 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
5465 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
5466 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]);
5467 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]);
5469 // if lump is empty there is nothing to load, we can deal with that in the LightPoint code
5472 if (l->filelen < count * (int)sizeof(*in))
5473 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]);
5474 if (l->filelen != count * (int)sizeof(*in))
5475 Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", (int)(count * sizeof(*in)), l->filelen);
5476 out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5477 loadmodel->brushq3.data_lightgrid = out;
5478 loadmodel->brushq3.num_lightgrid = count;
5479 // no swapping or validation necessary
5480 memcpy(out, in, count * (int)sizeof(*out));
5484 static void Mod_Q3BSP_LoadPVS(lump_t *l)
5489 if (l->filelen == 0)
5492 // unvised maps often have cluster indices even without pvs, so check
5493 // leafs to find real number of clusters
5494 loadmodel->brush.num_pvsclusters = 1;
5495 for (i = 0;i < loadmodel->brush.num_leafs;i++)
5496 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
5499 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
5500 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5501 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5502 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
5506 in = (q3dpvs_t *)(mod_base + l->fileofs);
5508 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
5510 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
5511 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
5512 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
5513 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
5514 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5515 if (l->filelen < totalchains + (int)sizeof(*in))
5516 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);
5518 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5519 memcpy(loadmodel->brush.data_pvsclusters, (unsigned char *)(in + 1), totalchains);
5522 static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
5524 int i, j, k, index[3];
5525 float transformed[3], blend1, blend2, blend, yaw, pitch, sinpitch, stylescale;
5526 q3dlightgrid_t *a, *s;
5528 // scale lighting by lightstyle[0] so that darkmode in dpmod works properly
5529 stylescale = r_refdef.lightstylevalue[0] * (1.0f / 264.0f);
5531 if (!model->brushq3.num_lightgrid)
5533 ambientcolor[0] = stylescale;
5534 ambientcolor[1] = stylescale;
5535 ambientcolor[2] = stylescale;
5539 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
5540 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
5541 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
5542 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
5543 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
5544 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
5545 index[0] = (int)floor(transformed[0]);
5546 index[1] = (int)floor(transformed[1]);
5547 index[2] = (int)floor(transformed[2]);
5548 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
5550 // now lerp the values
5551 VectorClear(diffusenormal);
5552 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
5553 for (k = 0;k < 2;k++)
5555 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
5556 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
5558 for (j = 0;j < 2;j++)
5560 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
5561 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
5563 for (i = 0;i < 2;i++)
5565 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0]))) * stylescale;
5566 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
5568 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
5569 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
5570 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
5571 pitch = s->diffusepitch * M_PI / 128;
5572 yaw = s->diffuseyaw * M_PI / 128;
5573 sinpitch = sin(pitch);
5574 diffusenormal[0] += blend * (cos(yaw) * sinpitch);
5575 diffusenormal[1] += blend * (sin(yaw) * sinpitch);
5576 diffusenormal[2] += blend * (cos(pitch));
5577 //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)));
5582 // normalize the light direction before turning
5583 VectorNormalize(diffusenormal);
5584 //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]);
5587 static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t point, int markframe)
5592 // find which leaf the point is in
5594 node = node->children[DotProduct(point, node->plane->normal) < node->plane->dist];
5595 // point trace the brushes
5596 leaf = (mleaf_t *)node;
5597 for (i = 0;i < leaf->numleafbrushes;i++)
5599 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5600 if (brush && brush->markframe != markframe && BoxesOverlap(point, point, brush->mins, brush->maxs))
5602 brush->markframe = markframe;
5603 Collision_TracePointBrushFloat(trace, point, brush);
5606 // can't do point traces on curves (they have no thickness)
5609 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)
5611 int i, startside, endside;
5612 float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
5614 msurface_t *surface;
5617 // walk the tree until we hit a leaf, recursing for any split cases
5620 // abort if this part of the bsp tree can not be hit by this trace
5621 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5623 plane = node->plane;
5624 // axial planes are much more common than non-axial, so an optimized
5625 // axial case pays off here
5626 if (plane->type < 3)
5628 dist1 = start[plane->type] - plane->dist;
5629 dist2 = end[plane->type] - plane->dist;
5633 dist1 = DotProduct(start, plane->normal) - plane->dist;
5634 dist2 = DotProduct(end, plane->normal) - plane->dist;
5636 startside = dist1 < 0;
5637 endside = dist2 < 0;
5638 if (startside == endside)
5640 // most of the time the line fragment is on one side of the plane
5641 node = node->children[startside];
5645 // line crosses node plane, split the line
5646 dist1 = PlaneDiff(linestart, plane);
5647 dist2 = PlaneDiff(lineend, plane);
5648 midfrac = dist1 / (dist1 - dist2);
5649 VectorLerp(linestart, midfrac, lineend, mid);
5650 // take the near side first
5651 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5652 // if we found an impact on the front side, don't waste time
5653 // exploring the far side
5654 if (midfrac <= trace->realfraction)
5655 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5659 // abort if this part of the bsp tree can not be hit by this trace
5660 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5663 nodesegmentmins[0] = min(start[0], end[0]) - 1;
5664 nodesegmentmins[1] = min(start[1], end[1]) - 1;
5665 nodesegmentmins[2] = min(start[2], end[2]) - 1;
5666 nodesegmentmaxs[0] = max(start[0], end[0]) + 1;
5667 nodesegmentmaxs[1] = max(start[1], end[1]) + 1;
5668 nodesegmentmaxs[2] = max(start[2], end[2]) + 1;
5669 // line trace the brushes
5670 leaf = (mleaf_t *)node;
5671 for (i = 0;i < leaf->numleafbrushes;i++)
5673 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5674 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5676 brush->markframe = markframe;
5677 Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
5680 // can't do point traces on curves (they have no thickness)
5681 if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
5683 // line trace the curves
5684 for (i = 0;i < leaf->numleafsurfaces;i++)
5686 surface = model->data_surfaces + leaf->firstleafsurface[i];
5687 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5689 surface->collisionmarkframe = markframe;
5690 Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5696 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)
5702 msurface_t *surface;
5704 float nodesegmentmins[3], nodesegmentmaxs[3];
5705 // walk the tree until we hit a leaf, recursing for any split cases
5708 // abort if this part of the bsp tree can not be hit by this trace
5709 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5711 plane = node->plane;
5712 // axial planes are much more common than non-axial, so an optimized
5713 // axial case pays off here
5714 if (plane->type < 3)
5716 // this is an axial plane, compare bounding box directly to it and
5717 // recurse sides accordingly
5718 // recurse down node sides
5719 // use an inlined axial BoxOnPlaneSide to slightly reduce overhead
5720 //sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, plane);
5721 //sides = ((segmentmaxs[plane->type] >= plane->dist) | ((segmentmins[plane->type] < plane->dist) << 1));
5722 sides = ((segmentmaxs[plane->type] >= plane->dist) + ((segmentmins[plane->type] < plane->dist) * 2));
5726 // this is a non-axial plane, so check if the start and end boxes
5727 // are both on one side of the plane to handle 'diagonal' cases
5728 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, plane);
5732 // segment crosses plane
5733 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5736 // if sides == 0 then the trace itself is bogus (Not A Number values),
5737 // in this case we simply pretend the trace hit nothing
5739 return; // ERROR: NAN bounding box!
5740 // take whichever side the segment box is on
5741 node = node->children[sides - 1];
5743 // abort if this part of the bsp tree can not be hit by this trace
5744 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5746 nodesegmentmins[0] = max(segmentmins[0], node->mins[0] - 1);
5747 nodesegmentmins[1] = max(segmentmins[1], node->mins[1] - 1);
5748 nodesegmentmins[2] = max(segmentmins[2], node->mins[2] - 1);
5749 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0] + 1);
5750 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1] + 1);
5751 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2] + 1);
5753 leaf = (mleaf_t *)node;
5754 for (i = 0;i < leaf->numleafbrushes;i++)
5756 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5757 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5759 brush->markframe = markframe;
5760 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
5763 if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer)
5765 for (i = 0;i < leaf->numleafsurfaces;i++)
5767 surface = model->data_surfaces + leaf->firstleafsurface[i];
5768 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5770 surface->collisionmarkframe = markframe;
5771 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);
5777 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)
5780 float segmentmins[3], segmentmaxs[3];
5781 static int markframe = 0;
5782 msurface_t *surface;
5784 memset(trace, 0, sizeof(*trace));
5785 trace->fraction = 1;
5786 trace->realfraction = 1;
5787 trace->hitsupercontentsmask = hitsupercontentsmask;
5788 if (mod_q3bsp_optimizedtraceline.integer && VectorLength2(boxmins) + VectorLength2(boxmaxs) == 0)
5790 if (VectorCompare(start, end))
5793 if (model->brush.submodel)
5795 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5796 if (brush->colbrushf)
5797 Collision_TracePointBrushFloat(trace, start, brush->colbrushf);
5800 Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, ++markframe);
5805 segmentmins[0] = min(start[0], end[0]) - 1;
5806 segmentmins[1] = min(start[1], end[1]) - 1;
5807 segmentmins[2] = min(start[2], end[2]) - 1;
5808 segmentmaxs[0] = max(start[0], end[0]) + 1;
5809 segmentmaxs[1] = max(start[1], end[1]) + 1;
5810 segmentmaxs[2] = max(start[2], end[2]) + 1;
5811 if (model->brush.submodel)
5813 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5814 if (brush->colbrushf)
5815 Collision_TraceLineBrushFloat(trace, start, end, brush->colbrushf, brush->colbrushf);
5816 if (mod_q3bsp_curves_collisions.integer)
5817 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5818 if (surface->num_collisiontriangles)
5819 Collision_TraceLineTriangleMeshFloat(trace, start, end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5822 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, end, 0, 1, start, end, ++markframe, segmentmins, segmentmaxs);
5827 // box trace, performed as brush trace
5828 colbrushf_t *thisbrush_start, *thisbrush_end;
5829 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
5830 segmentmins[0] = min(start[0], end[0]) + boxmins[0] - 1;
5831 segmentmins[1] = min(start[1], end[1]) + boxmins[1] - 1;
5832 segmentmins[2] = min(start[2], end[2]) + boxmins[2] - 1;
5833 segmentmaxs[0] = max(start[0], end[0]) + boxmaxs[0] + 1;
5834 segmentmaxs[1] = max(start[1], end[1]) + boxmaxs[1] + 1;
5835 segmentmaxs[2] = max(start[2], end[2]) + boxmaxs[2] + 1;
5836 VectorAdd(start, boxmins, boxstartmins);
5837 VectorAdd(start, boxmaxs, boxstartmaxs);
5838 VectorAdd(end, boxmins, boxendmins);
5839 VectorAdd(end, boxmaxs, boxendmaxs);
5840 thisbrush_start = Collision_BrushForBox(&identitymatrix, boxstartmins, boxstartmaxs, 0, 0, NULL);
5841 thisbrush_end = Collision_BrushForBox(&identitymatrix, boxendmins, boxendmaxs, 0, 0, NULL);
5842 if (model->brush.submodel)
5844 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5845 if (brush->colbrushf)
5846 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush->colbrushf, brush->colbrushf);
5847 if (mod_q3bsp_curves_collisions.integer)
5848 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5849 if (surface->num_collisiontriangles)
5850 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);
5853 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, model->brush.data_nodes, thisbrush_start, thisbrush_end, ++markframe, segmentmins, segmentmaxs);
5857 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
5859 int supercontents = 0;
5860 if (nativecontents & CONTENTSQ3_SOLID)
5861 supercontents |= SUPERCONTENTS_SOLID;
5862 if (nativecontents & CONTENTSQ3_WATER)
5863 supercontents |= SUPERCONTENTS_WATER;
5864 if (nativecontents & CONTENTSQ3_SLIME)
5865 supercontents |= SUPERCONTENTS_SLIME;
5866 if (nativecontents & CONTENTSQ3_LAVA)
5867 supercontents |= SUPERCONTENTS_LAVA;
5868 if (nativecontents & CONTENTSQ3_BODY)
5869 supercontents |= SUPERCONTENTS_BODY;
5870 if (nativecontents & CONTENTSQ3_CORPSE)
5871 supercontents |= SUPERCONTENTS_CORPSE;
5872 if (nativecontents & CONTENTSQ3_NODROP)
5873 supercontents |= SUPERCONTENTS_NODROP;
5874 if (nativecontents & CONTENTSQ3_PLAYERCLIP)
5875 supercontents |= SUPERCONTENTS_PLAYERCLIP;
5876 if (nativecontents & CONTENTSQ3_MONSTERCLIP)
5877 supercontents |= SUPERCONTENTS_MONSTERCLIP;
5878 if (nativecontents & CONTENTSQ3_DONOTENTER)
5879 supercontents |= SUPERCONTENTS_DONOTENTER;
5880 return supercontents;
5883 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
5885 int nativecontents = 0;
5886 if (supercontents & SUPERCONTENTS_SOLID)
5887 nativecontents |= CONTENTSQ3_SOLID;
5888 if (supercontents & SUPERCONTENTS_WATER)
5889 nativecontents |= CONTENTSQ3_WATER;
5890 if (supercontents & SUPERCONTENTS_SLIME)
5891 nativecontents |= CONTENTSQ3_SLIME;
5892 if (supercontents & SUPERCONTENTS_LAVA)
5893 nativecontents |= CONTENTSQ3_LAVA;
5894 if (supercontents & SUPERCONTENTS_BODY)
5895 nativecontents |= CONTENTSQ3_BODY;
5896 if (supercontents & SUPERCONTENTS_CORPSE)
5897 nativecontents |= CONTENTSQ3_CORPSE;
5898 if (supercontents & SUPERCONTENTS_NODROP)
5899 nativecontents |= CONTENTSQ3_NODROP;
5900 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
5901 nativecontents |= CONTENTSQ3_PLAYERCLIP;
5902 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
5903 nativecontents |= CONTENTSQ3_MONSTERCLIP;
5904 if (supercontents & SUPERCONTENTS_DONOTENTER)
5905 nativecontents |= CONTENTSQ3_DONOTENTER;
5906 return nativecontents;
5909 void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
5914 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
5915 node = node->children[1];
5917 numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
5918 if (loadmodel->brush.num_leafs < numleafs)
5919 loadmodel->brush.num_leafs = numleafs;
5922 void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
5924 int i, j, numshadowmeshtriangles;
5925 q3dheader_t *header;
5926 float corner[3], yawradius, modelradius;
5927 msurface_t *surface;
5929 mod->type = mod_brushq3;
5930 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
5933 header = (q3dheader_t *)buffer;
5935 i = LittleLong(header->version);
5936 if (i != Q3BSPVERSION)
5937 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
5938 mod->brush.ishlbsp = false;
5939 mod->brush.ismcbsp = false;
5940 if (loadmodel->isworldmodel)
5942 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
5943 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
5946 mod->soundfromcenter = true;
5947 mod->TraceBox = Mod_Q3BSP_TraceBox;
5948 mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
5949 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
5950 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
5951 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
5952 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
5953 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
5954 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
5955 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
5956 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
5957 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
5958 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5959 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
5960 mod->Draw = R_Q1BSP_Draw;
5961 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
5962 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
5963 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
5964 mod->DrawLight = R_Q1BSP_DrawLight;
5966 mod_base = (unsigned char *)header;
5968 // swap all the lumps
5969 header->ident = LittleLong(header->ident);
5970 header->version = LittleLong(header->version);
5971 for (i = 0;i < Q3HEADER_LUMPS;i++)
5973 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
5974 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
5977 mod->brush.qw_md4sum = 0;
5978 mod->brush.qw_md4sum2 = 0;
5979 for (i = 0;i < Q3HEADER_LUMPS;i++)
5981 if (i == Q3LUMP_ENTITIES)
5983 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
5984 if (i == Q3LUMP_PVS || i == Q3LUMP_LEAFS || i == Q3LUMP_NODES)
5986 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
5989 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
5990 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
5991 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
5992 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
5993 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
5994 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
5995 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
5996 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
5997 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS], &header->lumps[Q3LUMP_FACES]);
5998 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
5999 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
6000 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
6001 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
6002 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
6003 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
6004 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
6005 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
6006 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
6008 // the MakePortals code works fine on the q3bsp data as well
6009 Mod_Q1BSP_MakePortals();
6011 // FIXME: shader alpha should replace r_wateralpha support in q3bsp
6012 loadmodel->brush.supportwateralpha = true;
6014 // make a single combined shadow mesh to allow optimized shadow volume creation
6015 numshadowmeshtriangles = 0;
6016 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
6018 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
6019 numshadowmeshtriangles += surface->num_triangles;
6021 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
6022 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
6023 if (surface->num_triangles > 0)
6024 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));
6025 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true, false);
6026 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
6028 loadmodel->brush.num_leafs = 0;
6029 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
6031 if (loadmodel->isworldmodel)
6033 // clear out any stale submodels or worldmodels lying around
6034 // if we did this clear before now, an error might abort loading and
6035 // leave things in a bad state
6036 Mod_RemoveStaleWorldModels(loadmodel);
6040 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
6045 // LordHavoc: only register submodels if it is the world
6046 // (prevents external bsp models from replacing world submodels with
6048 if (!loadmodel->isworldmodel)
6050 // duplicate the basic information
6051 sprintf(name, "*%i", i);
6052 mod = Mod_FindName(name);
6054 strlcpy(mod->name, name, sizeof(mod->name));
6055 // textures and memory belong to the main model
6056 mod->texturepool = NULL;
6057 mod->mempool = NULL;
6058 mod->brush.TraceLineOfSight = NULL;
6059 mod->brush.GetPVS = NULL;
6060 mod->brush.FatPVS = NULL;
6061 mod->brush.BoxTouchingPVS = NULL;
6062 mod->brush.BoxTouchingLeafPVS = NULL;
6063 mod->brush.BoxTouchingVisibleLeafs = NULL;
6064 mod->brush.FindBoxClusters = NULL;
6065 mod->brush.LightPoint = NULL;
6066 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
6068 mod->brush.submodel = i;
6070 // make the model surface list (used by shadowing/lighting)
6071 mod->firstmodelsurface = mod->brushq3.data_models[i].firstface;
6072 mod->nummodelsurfaces = mod->brushq3.data_models[i].numfaces;
6073 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
6074 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
6075 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
6076 for (j = 0;j < mod->nummodelsurfaces;j++)
6077 mod->surfacelist[j] = mod->firstmodelsurface + j;
6079 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
6080 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
6081 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
6082 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
6083 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
6084 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
6085 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
6086 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
6087 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
6088 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
6089 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
6090 mod->yawmins[2] = mod->normalmins[2];
6091 mod->yawmaxs[2] = mod->normalmaxs[2];
6092 mod->radius = modelradius;
6093 mod->radius2 = modelradius * modelradius;
6095 for (j = 0;j < mod->nummodelsurfaces;j++)
6096 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->surfaceflags & Q3SURFACEFLAG_SKY)
6098 if (j < mod->nummodelsurfaces)
6099 mod->DrawSky = R_Q1BSP_DrawSky;
6101 mod->DrawSky = NULL;
6105 void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
6107 int i = LittleLong(((int *)buffer)[1]);
6108 if (i == Q3BSPVERSION)
6109 Mod_Q3BSP_Load(mod,buffer, bufferend);
6110 else if (i == Q2BSPVERSION)
6111 Mod_Q2BSP_Load(mod,buffer, bufferend);
6113 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i", i);
6116 void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend)
6118 Host_Error("Mod_MAP_Load: not yet implemented");
6121 qboolean Mod_CanSeeBox_Trace(int numsamples, float t, model_t *model, vec3_t eye, vec3_t minsX, vec3_t maxsX)
6123 // we already have done PVS culling at this point...
6124 // so we don't need to do it again.
6127 vec3_t testorigin, mins, maxs;
6129 testorigin[0] = (minsX[0] + maxsX[0]) * 0.5;
6130 testorigin[1] = (minsX[1] + maxsX[1]) * 0.5;
6131 testorigin[2] = (minsX[2] + maxsX[2]) * 0.5;
6133 if(model->brush.TraceLineOfSight(model, eye, testorigin))
6136 // expand the box a little
6137 mins[0] = (t+1) * minsX[0] - t * maxsX[0];
6138 maxs[0] = (t+1) * maxsX[0] - t * minsX[0];
6139 mins[1] = (t+1) * minsX[1] - t * maxsX[1];
6140 maxs[1] = (t+1) * maxsX[1] - t * minsX[1];
6141 mins[2] = (t+1) * minsX[2] - t * maxsX[2];
6142 maxs[2] = (t+1) * maxsX[2] - t * minsX[2];
6144 for(i = 0; i != numsamples; ++i)
6146 testorigin[0] = lhrandom(mins[0], maxs[0]);
6147 testorigin[1] = lhrandom(mins[1], maxs[1]);
6148 testorigin[2] = lhrandom(mins[2], maxs[2]);
6150 if(model->brush.TraceLineOfSight(model, eye, testorigin))