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_picmipworld = {CVAR_SAVE, "r_picmipworld", "1", "whether gl_picmip shall apply to world textures too"};
35 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)"};
36 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)"};
37 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)"};
38 cvar_t r_subdivisions_maxtess = {0, "r_subdivisions_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
39 cvar_t r_subdivisions_maxvertices = {0, "r_subdivisions_maxvertices", "65536", "maximum vertices allowed per subdivided curve"};
40 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)"};
41 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)"};
42 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)"};
43 cvar_t r_subdivisions_collision_maxvertices = {0, "r_subdivisions_collision_maxvertices", "4225", "maximum vertices allowed per subdivided curve"};
44 cvar_t mod_q3bsp_curves_collisions = {0, "mod_q3bsp_curves_collisions", "1", "enables collisions with curves (SLOW)"};
45 cvar_t mod_q3bsp_optimizedtraceline = {0, "mod_q3bsp_optimizedtraceline", "1", "whether to use optimized traceline code for line traces (as opposed to tracebox code)"};
46 cvar_t mod_q3bsp_debugtracebrush = {0, "mod_q3bsp_debugtracebrush", "0", "selects different tracebrush bsp recursion algorithms (for debugging purposes only)"};
47 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, ..."};
49 static texture_t mod_q1bsp_texture_solid;
50 static texture_t mod_q1bsp_texture_sky;
51 static texture_t mod_q1bsp_texture_lava;
52 static texture_t mod_q1bsp_texture_slime;
53 static texture_t mod_q1bsp_texture_water;
55 void Mod_BrushInit(void)
57 // Cvar_RegisterVariable(&r_subdivide_size);
58 Cvar_RegisterVariable(&halflifebsp);
59 Cvar_RegisterVariable(&mcbsp);
60 Cvar_RegisterVariable(&r_novis);
61 Cvar_RegisterVariable(&r_lightmaprgba);
62 Cvar_RegisterVariable(&r_picmipworld);
63 Cvar_RegisterVariable(&r_nosurftextures);
64 Cvar_RegisterVariable(&r_subdivisions_tolerance);
65 Cvar_RegisterVariable(&r_subdivisions_mintess);
66 Cvar_RegisterVariable(&r_subdivisions_maxtess);
67 Cvar_RegisterVariable(&r_subdivisions_maxvertices);
68 Cvar_RegisterVariable(&r_subdivisions_collision_tolerance);
69 Cvar_RegisterVariable(&r_subdivisions_collision_mintess);
70 Cvar_RegisterVariable(&r_subdivisions_collision_maxtess);
71 Cvar_RegisterVariable(&r_subdivisions_collision_maxvertices);
72 Cvar_RegisterVariable(&mod_q3bsp_curves_collisions);
73 Cvar_RegisterVariable(&mod_q3bsp_optimizedtraceline);
74 Cvar_RegisterVariable(&mod_q3bsp_debugtracebrush);
75 Cvar_RegisterVariable(&mod_q3bsp_lightmapmergepower);
77 memset(&mod_q1bsp_texture_solid, 0, sizeof(mod_q1bsp_texture_solid));
78 strlcpy(mod_q1bsp_texture_solid.name, "solid" , sizeof(mod_q1bsp_texture_solid.name));
79 mod_q1bsp_texture_solid.surfaceflags = 0;
80 mod_q1bsp_texture_solid.supercontents = SUPERCONTENTS_SOLID;
82 mod_q1bsp_texture_sky = mod_q1bsp_texture_solid;
83 strlcpy(mod_q1bsp_texture_sky.name, "sky", sizeof(mod_q1bsp_texture_sky.name));
84 mod_q1bsp_texture_sky.surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
85 mod_q1bsp_texture_sky.supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
87 mod_q1bsp_texture_lava = mod_q1bsp_texture_solid;
88 strlcpy(mod_q1bsp_texture_lava.name, "*lava", sizeof(mod_q1bsp_texture_lava.name));
89 mod_q1bsp_texture_lava.surfaceflags = Q3SURFACEFLAG_NOMARKS;
90 mod_q1bsp_texture_lava.supercontents = SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
92 mod_q1bsp_texture_slime = mod_q1bsp_texture_solid;
93 strlcpy(mod_q1bsp_texture_slime.name, "*slime", sizeof(mod_q1bsp_texture_slime.name));
94 mod_q1bsp_texture_slime.surfaceflags = Q3SURFACEFLAG_NOMARKS;
95 mod_q1bsp_texture_slime.supercontents = SUPERCONTENTS_SLIME;
97 mod_q1bsp_texture_water = mod_q1bsp_texture_solid;
98 strlcpy(mod_q1bsp_texture_water.name, "*water", sizeof(mod_q1bsp_texture_water.name));
99 mod_q1bsp_texture_water.surfaceflags = Q3SURFACEFLAG_NOMARKS;
100 mod_q1bsp_texture_water.supercontents = SUPERCONTENTS_WATER;
103 static mleaf_t *Mod_Q1BSP_PointInLeaf(model_t *model, const vec3_t p)
110 // LordHavoc: modified to start at first clip node,
111 // in other words: first node of the (sub)model
112 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
114 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
116 return (mleaf_t *)node;
119 static void Mod_Q1BSP_AmbientSoundLevelsForPoint(model_t *model, const vec3_t p, unsigned char *out, int outsize)
123 leaf = Mod_Q1BSP_PointInLeaf(model, p);
126 i = min(outsize, (int)sizeof(leaf->ambient_sound_level));
129 memcpy(out, leaf->ambient_sound_level, i);
135 memset(out, 0, outsize);
138 static int Mod_Q1BSP_FindBoxClusters(model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
141 int nodestackindex = 0;
142 mnode_t *node, *nodestack[1024];
143 if (!model->brush.num_pvsclusters)
145 node = model->brush.data_nodes;
151 // node - recurse down the BSP tree
152 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
156 return -1; // ERROR: NAN bounding box!
157 // box is on one side of plane, take that path
158 node = node->children[sides-1];
162 // box crosses plane, take one path and remember the other
163 if (nodestackindex < 1024)
164 nodestack[nodestackindex++] = node->children[0];
165 node = node->children[1];
171 // leaf - add clusterindex to list
172 if (numclusters < maxclusters)
173 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
177 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
181 if (nodestackindex < 1024)
182 nodestack[nodestackindex++] = node->children[0];
183 node = node->children[1];
188 // leaf - add clusterindex to list
189 if (numclusters < maxclusters)
190 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
195 // try another path we didn't take earlier
196 if (nodestackindex == 0)
198 node = nodestack[--nodestackindex];
200 // return number of clusters found (even if more than the maxclusters)
204 static int Mod_Q1BSP_BoxTouchingPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
206 int nodestackindex = 0;
207 mnode_t *node, *nodestack[1024];
208 if (!model->brush.num_pvsclusters)
210 node = model->brush.data_nodes;
216 // node - recurse down the BSP tree
217 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
221 return -1; // ERROR: NAN bounding box!
222 // box is on one side of plane, take that path
223 node = node->children[sides-1];
227 // box crosses plane, take one path and remember the other
228 if (nodestackindex < 1024)
229 nodestack[nodestackindex++] = node->children[0];
230 node = node->children[1];
236 // leaf - check cluster bit
237 int clusterindex = ((mleaf_t *)node)->clusterindex;
238 if (CHECKPVSBIT(pvs, clusterindex))
240 // it is visible, return immediately with the news
245 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
249 if (nodestackindex < 1024)
250 nodestack[nodestackindex++] = node->children[0];
251 node = node->children[1];
256 // leaf - check cluster bit
257 int clusterindex = ((mleaf_t *)node)->clusterindex;
258 if (CHECKPVSBIT(pvs, clusterindex))
260 // it is visible, return immediately with the news
266 // nothing to see here, try another path we didn't take earlier
267 if (nodestackindex == 0)
269 node = nodestack[--nodestackindex];
275 static int Mod_Q1BSP_BoxTouchingLeafPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
277 int nodestackindex = 0;
278 mnode_t *node, *nodestack[1024];
279 if (!model->brush.num_leafs)
281 node = model->brush.data_nodes;
287 // node - recurse down the BSP tree
288 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
292 return -1; // ERROR: NAN bounding box!
293 // box is on one side of plane, take that path
294 node = node->children[sides-1];
298 // box crosses plane, take one path and remember the other
299 if (nodestackindex < 1024)
300 nodestack[nodestackindex++] = node->children[0];
301 node = node->children[1];
307 // leaf - check cluster bit
308 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
309 if (CHECKPVSBIT(pvs, clusterindex))
311 // it is visible, return immediately with the news
316 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
320 if (nodestackindex < 1024)
321 nodestack[nodestackindex++] = node->children[0];
322 node = node->children[1];
327 // leaf - check cluster bit
328 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
329 if (CHECKPVSBIT(pvs, clusterindex))
331 // it is visible, return immediately with the news
337 // nothing to see here, try another path we didn't take earlier
338 if (nodestackindex == 0)
340 node = nodestack[--nodestackindex];
346 static int Mod_Q1BSP_BoxTouchingVisibleLeafs(model_t *model, const unsigned char *visibleleafs, const vec3_t mins, const vec3_t maxs)
348 int nodestackindex = 0;
349 mnode_t *node, *nodestack[1024];
350 if (!model->brush.num_leafs)
352 node = model->brush.data_nodes;
358 // node - recurse down the BSP tree
359 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
363 return -1; // ERROR: NAN bounding box!
364 // box is on one side of plane, take that path
365 node = node->children[sides-1];
369 // box crosses plane, take one path and remember the other
370 if (nodestackindex < 1024)
371 nodestack[nodestackindex++] = node->children[0];
372 node = node->children[1];
378 // leaf - check if it is visible
379 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
381 // it is visible, return immediately with the news
386 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
390 if (nodestackindex < 1024)
391 nodestack[nodestackindex++] = node->children[0];
392 node = node->children[1];
397 // leaf - check if it is visible
398 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
400 // it is visible, return immediately with the news
406 // nothing to see here, try another path we didn't take earlier
407 if (nodestackindex == 0)
409 node = nodestack[--nodestackindex];
415 typedef struct findnonsolidlocationinfo_s
423 findnonsolidlocationinfo_t;
425 static void Mod_Q1BSP_FindNonSolidLocation_r_Leaf(findnonsolidlocationinfo_t *info, mleaf_t *leaf)
427 int i, surfacenum, k, *tri, *mark;
428 float dist, f, vert[3][3], edge[3][3], facenormal[3], edgenormal[3][3], point[3];
430 for (surfacenum = 0, mark = leaf->firstleafsurface;surfacenum < leaf->numleafsurfaces;surfacenum++, mark++)
432 surface = info->model->data_surfaces + *mark;
433 if (surface->texture->supercontents & SUPERCONTENTS_SOLID)
435 for (k = 0;k < surface->num_triangles;k++)
437 tri = (info->model->surfmesh.data_element3i + 3 * surface->num_firsttriangle) + k * 3;
438 VectorCopy((info->model->surfmesh.data_vertex3f + tri[0] * 3), vert[0]);
439 VectorCopy((info->model->surfmesh.data_vertex3f + tri[1] * 3), vert[1]);
440 VectorCopy((info->model->surfmesh.data_vertex3f + tri[2] * 3), vert[2]);
441 VectorSubtract(vert[1], vert[0], edge[0]);
442 VectorSubtract(vert[2], vert[1], edge[1]);
443 CrossProduct(edge[1], edge[0], facenormal);
444 if (facenormal[0] || facenormal[1] || facenormal[2])
446 VectorNormalize(facenormal);
447 f = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
448 if (f <= info->bestdist && f >= -info->bestdist)
450 VectorSubtract(vert[0], vert[2], edge[2]);
451 VectorNormalize(edge[0]);
452 VectorNormalize(edge[1]);
453 VectorNormalize(edge[2]);
454 CrossProduct(facenormal, edge[0], edgenormal[0]);
455 CrossProduct(facenormal, edge[1], edgenormal[1]);
456 CrossProduct(facenormal, edge[2], edgenormal[2]);
458 if (DotProduct(info->center, edgenormal[0]) < DotProduct(vert[0], edgenormal[0])
459 && DotProduct(info->center, edgenormal[1]) < DotProduct(vert[1], edgenormal[1])
460 && DotProduct(info->center, edgenormal[2]) < DotProduct(vert[2], edgenormal[2]))
462 // we got lucky, the center is within the face
463 dist = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
467 if (info->bestdist > dist)
469 info->bestdist = dist;
470 VectorScale(facenormal, (info->radius - -dist), info->nudge);
475 if (info->bestdist > dist)
477 info->bestdist = dist;
478 VectorScale(facenormal, (info->radius - dist), info->nudge);
484 // check which edge or vertex the center is nearest
485 for (i = 0;i < 3;i++)
487 f = DotProduct(info->center, edge[i]);
488 if (f >= DotProduct(vert[0], edge[i])
489 && f <= DotProduct(vert[1], edge[i]))
492 VectorMA(info->center, -f, edge[i], point);
493 dist = sqrt(DotProduct(point, point));
494 if (info->bestdist > dist)
496 info->bestdist = dist;
497 VectorScale(point, (info->radius / dist), info->nudge);
499 // skip both vertex checks
500 // (both are further away than this edge)
505 // not on edge, check first vertex of edge
506 VectorSubtract(info->center, vert[i], point);
507 dist = sqrt(DotProduct(point, point));
508 if (info->bestdist > dist)
510 info->bestdist = dist;
511 VectorScale(point, (info->radius / dist), info->nudge);
523 static void Mod_Q1BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, mnode_t *node)
527 float f = PlaneDiff(info->center, node->plane);
528 if (f >= -info->bestdist)
529 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[0]);
530 if (f <= info->bestdist)
531 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[1]);
535 if (((mleaf_t *)node)->numleafsurfaces)
536 Mod_Q1BSP_FindNonSolidLocation_r_Leaf(info, (mleaf_t *)node);
540 static void Mod_Q1BSP_FindNonSolidLocation(model_t *model, const vec3_t in, vec3_t out, float radius)
543 findnonsolidlocationinfo_t info;
549 VectorCopy(in, info.center);
550 info.radius = radius;
555 VectorClear(info.nudge);
556 info.bestdist = radius;
557 Mod_Q1BSP_FindNonSolidLocation_r(&info, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
558 VectorAdd(info.center, info.nudge, info.center);
560 while (info.bestdist < radius && ++i < 10);
561 VectorCopy(info.center, out);
564 int Mod_Q1BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
566 switch(nativecontents)
571 return SUPERCONTENTS_SOLID;
573 return SUPERCONTENTS_WATER;
575 return SUPERCONTENTS_SLIME;
577 return SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
579 return SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
584 int Mod_Q1BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
586 if (supercontents & (SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY))
587 return CONTENTS_SOLID;
588 if (supercontents & SUPERCONTENTS_SKY)
590 if (supercontents & SUPERCONTENTS_LAVA)
591 return CONTENTS_LAVA;
592 if (supercontents & SUPERCONTENTS_SLIME)
593 return CONTENTS_SLIME;
594 if (supercontents & SUPERCONTENTS_WATER)
595 return CONTENTS_WATER;
596 return CONTENTS_EMPTY;
599 typedef struct RecursiveHullCheckTraceInfo_s
601 // the hull we're tracing through
604 // the trace structure to fill in
607 // start, end, and end - start (in model space)
612 RecursiveHullCheckTraceInfo_t;
614 // 1/32 epsilon to keep floating point happy
615 #define DIST_EPSILON (0.03125)
617 #define HULLCHECKSTATE_EMPTY 0
618 #define HULLCHECKSTATE_SOLID 1
619 #define HULLCHECKSTATE_DONE 2
621 extern cvar_t collision_prefernudgedfraction;
622 static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int num, double p1f, double p2f, double p1[3], double p2[3])
624 // status variables, these don't need to be saved on the stack when
625 // recursing... but are because this should be thread-safe
626 // (note: tracing against a bbox is not thread-safe, yet)
631 // variables that need to be stored on the stack when recursing
636 // LordHavoc: a goto! everyone flee in terror... :)
641 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
642 if (!t->trace->startfound)
644 t->trace->startfound = true;
645 t->trace->startsupercontents |= num;
647 if (num & SUPERCONTENTS_LIQUIDSMASK)
648 t->trace->inwater = true;
650 t->trace->inopen = true;
651 if (num & SUPERCONTENTS_SOLID)
652 t->trace->hittexture = &mod_q1bsp_texture_solid;
653 else if (num & SUPERCONTENTS_SKY)
654 t->trace->hittexture = &mod_q1bsp_texture_sky;
655 else if (num & SUPERCONTENTS_LAVA)
656 t->trace->hittexture = &mod_q1bsp_texture_lava;
657 else if (num & SUPERCONTENTS_SLIME)
658 t->trace->hittexture = &mod_q1bsp_texture_slime;
660 t->trace->hittexture = &mod_q1bsp_texture_water;
661 t->trace->hitq3surfaceflags = t->trace->hittexture->surfaceflags;
662 t->trace->hitsupercontents = num;
663 if (num & t->trace->hitsupercontentsmask)
665 // if the first leaf is solid, set startsolid
666 if (t->trace->allsolid)
667 t->trace->startsolid = true;
668 #if COLLISIONPARANOID >= 3
671 return HULLCHECKSTATE_SOLID;
675 t->trace->allsolid = false;
676 #if COLLISIONPARANOID >= 3
679 return HULLCHECKSTATE_EMPTY;
683 // find the point distances
684 node = t->hull->clipnodes + num;
686 plane = t->hull->planes + node->planenum;
689 t1 = p1[plane->type] - plane->dist;
690 t2 = p2[plane->type] - plane->dist;
694 t1 = DotProduct (plane->normal, p1) - plane->dist;
695 t2 = DotProduct (plane->normal, p2) - plane->dist;
702 #if COLLISIONPARANOID >= 3
705 num = node->children[1];
714 #if COLLISIONPARANOID >= 3
717 num = node->children[0];
723 // the line intersects, find intersection point
724 // LordHavoc: this uses the original trace for maximum accuracy
725 #if COLLISIONPARANOID >= 3
730 t1 = t->start[plane->type] - plane->dist;
731 t2 = t->end[plane->type] - plane->dist;
735 t1 = DotProduct (plane->normal, t->start) - plane->dist;
736 t2 = DotProduct (plane->normal, t->end) - plane->dist;
739 midf = t1 / (t1 - t2);
740 midf = bound(p1f, midf, p2f);
741 VectorMA(t->start, midf, t->dist, mid);
743 // recurse both sides, front side first
744 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side], p1f, midf, p1, mid);
745 // if this side is not empty, return what it is (solid or done)
746 if (ret != HULLCHECKSTATE_EMPTY)
749 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[side ^ 1], midf, p2f, mid, p2);
750 // if other side is not solid, return what it is (empty or done)
751 if (ret != HULLCHECKSTATE_SOLID)
754 // front is air and back is solid, this is the impact point...
757 t->trace->plane.dist = -plane->dist;
758 VectorNegate (plane->normal, t->trace->plane.normal);
762 t->trace->plane.dist = plane->dist;
763 VectorCopy (plane->normal, t->trace->plane.normal);
766 // calculate the true fraction
767 t1 = DotProduct(t->trace->plane.normal, t->start) - t->trace->plane.dist;
768 t2 = DotProduct(t->trace->plane.normal, t->end) - t->trace->plane.dist;
769 midf = t1 / (t1 - t2);
770 t->trace->realfraction = bound(0, midf, 1);
772 // calculate the return fraction which is nudged off the surface a bit
773 midf = (t1 - DIST_EPSILON) / (t1 - t2);
774 t->trace->fraction = bound(0, midf, 1);
776 if (collision_prefernudgedfraction.integer)
777 t->trace->realfraction = t->trace->fraction;
779 #if COLLISIONPARANOID >= 3
782 return HULLCHECKSTATE_DONE;
785 //#if COLLISIONPARANOID < 2
786 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
789 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];
790 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
791 t->trace->startsupercontents |= num;
792 if (num & SUPERCONTENTS_LIQUIDSMASK)
793 t->trace->inwater = true;
795 t->trace->inopen = true;
796 if (num & t->trace->hitsupercontentsmask)
798 t->trace->allsolid = t->trace->startsolid = true;
799 return HULLCHECKSTATE_SOLID;
803 t->trace->allsolid = t->trace->startsolid = false;
804 return HULLCHECKSTATE_EMPTY;
809 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)
811 // this function currently only supports same size start and end
813 RecursiveHullCheckTraceInfo_t rhc;
815 memset(&rhc, 0, sizeof(rhc));
816 memset(trace, 0, sizeof(trace_t));
818 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
819 rhc.trace->fraction = 1;
820 rhc.trace->realfraction = 1;
821 rhc.trace->allsolid = true;
822 VectorSubtract(boxmaxs, boxmins, boxsize);
824 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
825 else if (model->brush.ismcbsp)
827 if (boxsize[2] < 48) // pick the nearest of 40 or 56
828 rhc.hull = &model->brushq1.hulls[2]; // 16x16x40
830 rhc.hull = &model->brushq1.hulls[1]; // 16x16x56
832 else if (model->brush.ishlbsp)
834 // LordHavoc: this has to have a minor tolerance (the .1) because of
835 // minor float precision errors from the box being transformed around
836 if (boxsize[0] < 32.1)
838 if (boxsize[2] < 54) // pick the nearest of 36 or 72
839 rhc.hull = &model->brushq1.hulls[3]; // 32x32x36
841 rhc.hull = &model->brushq1.hulls[1]; // 32x32x72
844 rhc.hull = &model->brushq1.hulls[2]; // 64x64x64
848 // LordHavoc: this has to have a minor tolerance (the .1) because of
849 // minor float precision errors from the box being transformed around
850 if (boxsize[0] < 32.1)
851 rhc.hull = &model->brushq1.hulls[1]; // 32x32x56
853 rhc.hull = &model->brushq1.hulls[2]; // 64x64x88
855 VectorMAMAM(1, start, 1, boxmins, -1, rhc.hull->clip_mins, rhc.start);
856 VectorMAMAM(1, end, 1, boxmins, -1, rhc.hull->clip_mins, rhc.end);
857 VectorSubtract(rhc.end, rhc.start, rhc.dist);
858 #if COLLISIONPARANOID >= 2
859 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]);
860 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
865 VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
866 memset(&testtrace, 0, sizeof(trace_t));
867 rhc.trace = &testtrace;
868 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
869 rhc.trace->fraction = 1;
870 rhc.trace->realfraction = 1;
871 rhc.trace->allsolid = true;
872 VectorCopy(test, rhc.start);
873 VectorCopy(test, rhc.end);
874 VectorClear(rhc.dist);
875 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
876 //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
877 if (!trace->startsolid && testtrace.startsolid)
878 Con_Printf(" - ended in solid!\n");
882 if (VectorLength2(rhc.dist))
883 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
885 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
889 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)
893 colplanef_t cbox_planes[6];
894 cbox.supercontents = boxsupercontents;
897 cbox.numtriangles = 0;
898 cbox.planes = cbox_planes;
900 cbox.elements = NULL;
908 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];
909 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];
910 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];
911 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];
912 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];
913 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];
914 cbox_planes[0].q3surfaceflags = boxq3surfaceflags;cbox_planes[0].texture = boxtexture;
915 cbox_planes[1].q3surfaceflags = boxq3surfaceflags;cbox_planes[1].texture = boxtexture;
916 cbox_planes[2].q3surfaceflags = boxq3surfaceflags;cbox_planes[2].texture = boxtexture;
917 cbox_planes[3].q3surfaceflags = boxq3surfaceflags;cbox_planes[3].texture = boxtexture;
918 cbox_planes[4].q3surfaceflags = boxq3surfaceflags;cbox_planes[4].texture = boxtexture;
919 cbox_planes[5].q3surfaceflags = boxq3surfaceflags;cbox_planes[5].texture = boxtexture;
920 memset(trace, 0, sizeof(trace_t));
921 trace->hitsupercontentsmask = hitsupercontentsmask;
923 trace->realfraction = 1;
924 Collision_TraceLineBrushFloat(trace, start, end, &cbox, &cbox);
926 RecursiveHullCheckTraceInfo_t rhc;
927 static hull_t box_hull;
928 static dclipnode_t box_clipnodes[6];
929 static mplane_t box_planes[6];
930 // fill in a default trace
931 memset(&rhc, 0, sizeof(rhc));
932 memset(trace, 0, sizeof(trace_t));
933 //To keep everything totally uniform, bounding boxes are turned into small
934 //BSP trees instead of being compared directly.
935 // create a temp hull from bounding box sizes
936 box_planes[0].dist = cmaxs[0] - mins[0];
937 box_planes[1].dist = cmins[0] - maxs[0];
938 box_planes[2].dist = cmaxs[1] - mins[1];
939 box_planes[3].dist = cmins[1] - maxs[1];
940 box_planes[4].dist = cmaxs[2] - mins[2];
941 box_planes[5].dist = cmins[2] - maxs[2];
942 #if COLLISIONPARANOID >= 3
943 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]);
946 if (box_hull.clipnodes == NULL)
950 //Set up the planes and clipnodes so that the six floats of a bounding box
951 //can just be stored out and get a proper hull_t structure.
953 box_hull.clipnodes = box_clipnodes;
954 box_hull.planes = box_planes;
955 box_hull.firstclipnode = 0;
956 box_hull.lastclipnode = 5;
958 for (i = 0;i < 6;i++)
960 box_clipnodes[i].planenum = i;
964 box_clipnodes[i].children[side] = CONTENTS_EMPTY;
966 box_clipnodes[i].children[side^1] = i + 1;
968 box_clipnodes[i].children[side^1] = CONTENTS_SOLID;
970 box_planes[i].type = i>>1;
971 box_planes[i].normal[i>>1] = 1;
975 // trace a line through the generated clipping hull
976 //rhc.boxsupercontents = boxsupercontents;
977 rhc.hull = &box_hull;
979 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
980 rhc.trace->fraction = 1;
981 rhc.trace->realfraction = 1;
982 rhc.trace->allsolid = true;
983 VectorCopy(start, rhc.start);
984 VectorCopy(end, rhc.end);
985 VectorSubtract(rhc.end, rhc.start, rhc.dist);
986 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
987 //VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
988 if (rhc.trace->startsupercontents)
989 rhc.trace->startsupercontents = boxsupercontents;
993 static int Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(mnode_t *node, double p1[3], double p2[3])
1002 // find the point distances
1003 mplane_t *plane = node->plane;
1004 if (plane->type < 3)
1006 t1 = p1[plane->type] - plane->dist;
1007 t2 = p2[plane->type] - plane->dist;
1011 t1 = DotProduct (plane->normal, p1) - plane->dist;
1012 t2 = DotProduct (plane->normal, p2) - plane->dist;
1019 node = node->children[1];
1028 node = node->children[0];
1034 midf = t1 / (t1 - t2);
1035 VectorLerp(p1, midf, p2, mid);
1037 // recurse both sides, front side first
1038 // return 2 if empty is followed by solid (hit something)
1039 // do not return 2 if both are solid or both empty,
1040 // or if start is solid and end is empty
1041 // as these degenerate cases usually indicate the eye is in solid and
1042 // should see the target point anyway
1043 ret = Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ], p1, mid);
1046 ret = Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ^ 1], mid, p2);
1051 return ((mleaf_t *)node)->clusterindex < 0;
1054 static qboolean Mod_Q1BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end)
1056 // this function currently only supports same size start and end
1057 double tracestart[3], traceend[3];
1058 VectorCopy(start, tracestart);
1059 VectorCopy(end, traceend);
1060 return Mod_Q1BSP_TraceLineOfSight_RecursiveNodeCheck(model->brush.data_nodes, tracestart, traceend) != 2;
1063 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)
1067 float mid, distz = endz - startz;
1071 return false; // didn't hit anything
1073 switch (node->plane->type)
1076 node = node->children[x < node->plane->dist];
1079 node = node->children[y < node->plane->dist];
1082 side = startz < node->plane->dist;
1083 if ((endz < node->plane->dist) == side)
1085 node = node->children[side];
1088 // found an intersection
1089 mid = node->plane->dist;
1092 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
1093 front += startz * node->plane->normal[2];
1094 back += endz * node->plane->normal[2];
1095 side = front < node->plane->dist;
1096 if ((back < node->plane->dist) == side)
1098 node = node->children[side];
1101 // found an intersection
1102 mid = startz + distz * (front - node->plane->dist) / (front - back);
1106 // go down front side
1107 if (node->children[side]->plane && Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
1108 return true; // hit something
1111 // check for impact on this node
1112 if (node->numsurfaces)
1115 msurface_t *surface;
1117 surface = model->data_surfaces + node->firstsurface;
1118 for (i = 0;i < node->numsurfaces;i++, surface++)
1120 if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->lightmapinfo->samples)
1121 continue; // no lightmaps
1123 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];
1124 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];
1126 if (ds >= 0 && ds < surface->lightmapinfo->extents[0] && dt >= 0 && dt < surface->lightmapinfo->extents[1])
1128 unsigned char *lightmap;
1129 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;
1130 lmwidth = ((surface->lightmapinfo->extents[0]>>4)+1);
1131 lmheight = ((surface->lightmapinfo->extents[1]>>4)+1);
1132 line3 = lmwidth * 3; // LordHavoc: *3 for colored lighting
1133 size3 = lmwidth * lmheight * 3; // LordHavoc: *3 for colored lighting
1135 lightmap = surface->lightmapinfo->samples + ((dt>>4) * lmwidth + (ds>>4))*3; // LordHavoc: *3 for colored lighting
1137 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++)
1139 scale = r_refdef.lightstylevalue[surface->lightmapinfo->styles[maps]];
1140 r00 += lightmap[ 0] * scale;g00 += lightmap[ 1] * scale;b00 += lightmap[ 2] * scale;
1141 r01 += lightmap[ 3] * scale;g01 += lightmap[ 4] * scale;b01 += lightmap[ 5] * scale;
1142 r10 += lightmap[line3+0] * scale;g10 += lightmap[line3+1] * scale;b10 += lightmap[line3+2] * scale;
1143 r11 += lightmap[line3+3] * scale;g11 += lightmap[line3+4] * scale;b11 += lightmap[line3+5] * scale;
1148 LordHavoc: here's the readable version of the interpolation
1149 code, not quite as easy for the compiler to optimize...
1151 dsfrac is the X position in the lightmap pixel, * 16
1152 dtfrac is the Y position in the lightmap pixel, * 16
1153 r00 is top left corner, r01 is top right corner
1154 r10 is bottom left corner, r11 is bottom right corner
1155 g and b are the same layout.
1156 r0 and r1 are the top and bottom intermediate results
1158 first we interpolate the top two points, to get the top
1161 r0 = (((r01-r00) * dsfrac) >> 4) + r00;
1162 g0 = (((g01-g00) * dsfrac) >> 4) + g00;
1163 b0 = (((b01-b00) * dsfrac) >> 4) + b00;
1165 then we interpolate the bottom two points, to get the
1168 r1 = (((r11-r10) * dsfrac) >> 4) + r10;
1169 g1 = (((g11-g10) * dsfrac) >> 4) + g10;
1170 b1 = (((b11-b10) * dsfrac) >> 4) + b10;
1172 then we interpolate the top and bottom samples to get the
1173 middle sample (the one which was requested)
1175 r = (((r1-r0) * dtfrac) >> 4) + r0;
1176 g = (((g1-g0) * dtfrac) >> 4) + g0;
1177 b = (((b1-b0) * dtfrac) >> 4) + b0;
1180 ambientcolor[0] += (float) ((((((((r11-r10) * dsfrac) >> 4) + r10)-((((r01-r00) * dsfrac) >> 4) + r00)) * dtfrac) >> 4) + ((((r01-r00) * dsfrac) >> 4) + r00)) * (1.0f / 32768.0f);
1181 ambientcolor[1] += (float) ((((((((g11-g10) * dsfrac) >> 4) + g10)-((((g01-g00) * dsfrac) >> 4) + g00)) * dtfrac) >> 4) + ((((g01-g00) * dsfrac) >> 4) + g00)) * (1.0f / 32768.0f);
1182 ambientcolor[2] += (float) ((((((((b11-b10) * dsfrac) >> 4) + b10)-((((b01-b00) * dsfrac) >> 4) + b00)) * dtfrac) >> 4) + ((((b01-b00) * dsfrac) >> 4) + b00)) * (1.0f / 32768.0f);
1183 return true; // success
1188 // go down back side
1189 node = node->children[side ^ 1];
1191 distz = endz - startz;
1196 void Mod_Q1BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
1198 // pretend lighting is coming down from above (due to lack of a lightgrid to know primary lighting direction)
1199 VectorSet(diffusenormal, 0, 0, 1);
1201 if (!model->brushq1.lightdata)
1203 VectorSet(ambientcolor, 1, 1, 1);
1204 VectorSet(diffusecolor, 0, 0, 0);
1208 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);
1211 static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char *inend, unsigned char *out, unsigned char *outend)
1214 unsigned char *outstart = out;
1215 while (out < outend)
1219 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));
1229 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));
1232 for (c = *in++;c > 0;c--)
1236 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));
1247 R_Q1BSP_LoadSplitSky
1249 A sky texture is 256*128, with the right side being a masked overlay
1252 void R_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesperpixel)
1255 unsigned solidpixels[128*128], alphapixels[128*128];
1257 // allocate a texture pool if we need it
1258 if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
1259 loadmodel->texturepool = R_AllocTexturePool();
1261 // if sky isn't the right size, just use it as a solid layer
1262 if (width != 256 || height != 128)
1264 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);
1265 loadmodel->brush.alphaskytexture = NULL;
1269 if (bytesperpixel == 4)
1271 for (i = 0;i < 128;i++)
1273 for (j = 0;j < 128;j++)
1275 solidpixels[(i*128) + j] = ((unsigned *)src)[i*256+j+128];
1276 alphapixels[(i*128) + j] = ((unsigned *)src)[i*256+j];
1282 // make an average value for the back to avoid
1283 // a fringe on the top level
1292 for (i = 0;i < 128;i++)
1294 for (j = 0;j < 128;j++)
1296 rgba.i = palette_complete[src[i*256 + j + 128]];
1302 rgba.b[0] = r/(128*128);
1303 rgba.b[1] = g/(128*128);
1304 rgba.b[2] = b/(128*128);
1306 for (i = 0;i < 128;i++)
1308 for (j = 0;j < 128;j++)
1310 solidpixels[(i*128) + j] = palette_complete[src[i*256 + j + 128]];
1311 alphapixels[(i*128) + j] = (p = src[i*256 + j]) ? palette_complete[p] : rgba.i;
1316 loadmodel->brush.solidskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_solidtexture", 128, 128, (unsigned char *) solidpixels, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
1317 loadmodel->brush.alphaskytexture = R_LoadTexture2D(loadmodel->texturepool, "sky_alphatexture", 128, 128, (unsigned char *) alphapixels, TEXTYPE_RGBA, TEXF_ALPHA | TEXF_PRECACHE, NULL);
1320 static void Mod_Q1BSP_LoadTextures(lump_t *l)
1322 int i, j, k, num, max, altmax, mtwidth, mtheight, *dofs, incomplete;
1323 skinframe_t *skinframe;
1325 texture_t *tx, *tx2, *anims[10], *altanims[10];
1327 unsigned char *data, *mtdata;
1329 char mapname[MAX_QPATH], name[MAX_QPATH];
1331 loadmodel->data_textures = NULL;
1333 // add two slots for notexture walls and notexture liquids
1336 m = (dmiptexlump_t *)(mod_base + l->fileofs);
1337 m->nummiptex = LittleLong (m->nummiptex);
1338 loadmodel->num_textures = m->nummiptex + 2;
1339 loadmodel->num_texturesperskin = loadmodel->num_textures;
1344 loadmodel->num_textures = 2;
1345 loadmodel->num_texturesperskin = loadmodel->num_textures;
1348 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
1350 // fill out all slots with notexture
1351 if (cls.state != ca_dedicated)
1352 skinframe = R_SkinFrame_LoadMissing();
1355 for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
1357 strlcpy(tx->name, "NO TEXTURE FOUND", sizeof(tx->name));
1360 if (cls.state != ca_dedicated)
1362 tx->numskinframes = 1;
1363 tx->skinframerate = 1;
1364 tx->skinframes[0] = skinframe;
1365 tx->currentskinframe = tx->skinframes[0];
1366 tx->basematerialflags = 0;
1368 if (i == loadmodel->num_textures - 1)
1370 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1371 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1372 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1376 tx->basematerialflags |= MATERIALFLAG_WALL;
1377 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1378 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1380 tx->currentframe = tx;
1386 s = loadmodel->name;
1387 if (!strncasecmp(s, "maps/", 5))
1389 FS_StripExtension(s, mapname, sizeof(mapname));
1391 // just to work around bounds checking when debugging with it (array index out of bounds error thing)
1393 // LordHavoc: mostly rewritten map texture loader
1394 for (i = 0;i < m->nummiptex;i++)
1396 dofs[i] = LittleLong(dofs[i]);
1397 if (dofs[i] == -1 || r_nosurftextures.integer)
1399 dmiptex = (miptex_t *)((unsigned char *)m + dofs[i]);
1401 // make sure name is no more than 15 characters
1402 for (j = 0;dmiptex->name[j] && j < 15;j++)
1403 name[j] = dmiptex->name[j];
1406 mtwidth = LittleLong(dmiptex->width);
1407 mtheight = LittleLong(dmiptex->height);
1409 j = LittleLong(dmiptex->offsets[0]);
1413 if (j < 40 || j + mtwidth * mtheight > l->filelen)
1415 Con_Printf("Texture \"%s\" in \"%s\"is corrupt or incomplete\n", dmiptex->name, loadmodel->name);
1418 mtdata = (unsigned char *)dmiptex + j;
1421 if ((mtwidth & 15) || (mtheight & 15))
1422 Con_Printf("warning: texture \"%s\" in \"%s\" is not 16 aligned\n", dmiptex->name, loadmodel->name);
1424 // LordHavoc: force all names to lowercase
1425 for (j = 0;name[j];j++)
1426 if (name[j] >= 'A' && name[j] <= 'Z')
1427 name[j] += 'a' - 'A';
1429 tx = loadmodel->data_textures + i;
1430 strlcpy(tx->name, name, sizeof(tx->name));
1431 tx->width = mtwidth;
1432 tx->height = mtheight;
1436 sprintf(tx->name, "unnamed%i", i);
1437 Con_Printf("warning: unnamed texture in %s, renaming to %s\n", loadmodel->name, tx->name);
1440 if (tx->name[0] == '*')
1442 if (!strncmp(tx->name, "*lava", 5))
1444 tx->supercontents = mod_q1bsp_texture_lava.supercontents;
1445 tx->surfaceflags = mod_q1bsp_texture_lava.surfaceflags;
1447 else if (!strncmp(tx->name, "*slime", 6))
1449 tx->supercontents = mod_q1bsp_texture_slime.supercontents;
1450 tx->surfaceflags = mod_q1bsp_texture_slime.surfaceflags;
1454 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1455 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1458 else if (!strncmp(tx->name, "sky", 3))
1460 tx->supercontents = mod_q1bsp_texture_sky.supercontents;
1461 tx->surfaceflags = mod_q1bsp_texture_sky.surfaceflags;
1465 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1466 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1469 if (cls.state != ca_dedicated)
1471 // LordHavoc: HL sky textures are entirely different than quake
1472 if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == 256 && mtheight == 128)
1474 if (loadmodel->isworldmodel)
1476 data = loadimagepixels(tx->name, false, 0, 0);
1479 R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1482 else if (mtdata != NULL)
1483 R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1488 skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s/%s", mapname, tx->name), TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0), false);
1490 skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va("textures/%s", tx->name), TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0), false);
1493 // did not find external texture, load it from the bsp or wad3
1494 if (loadmodel->brush.ishlbsp)
1496 // internal texture overrides wad
1497 unsigned char *pixels, *freepixels;
1498 pixels = freepixels = NULL;
1500 pixels = W_ConvertWAD3Texture(dmiptex);
1502 pixels = freepixels = W_GetTexture(tx->name);
1505 tx->width = image_width;
1506 tx->height = image_height;
1507 skinframe = R_SkinFrame_LoadInternal(tx->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0), false, false, pixels, image_width, image_height, 32, NULL, NULL);
1510 Mem_Free(freepixels);
1512 else if (mtdata) // texture included
1513 skinframe = R_SkinFrame_LoadInternal(tx->name, TEXF_MIPMAP | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0), false, r_fullbrights.integer, mtdata, tx->width, tx->height, 8, NULL, NULL);
1515 // if skinframe is still NULL the "missing" texture will be used
1517 tx->skinframes[0] = skinframe;
1520 tx->basematerialflags = 0;
1521 if (tx->name[0] == '*')
1523 // LordHavoc: some turbulent textures should not be affected by wateralpha
1524 if (strncmp(tx->name,"*lava",5)
1525 && strncmp(tx->name,"*teleport",9)
1526 && strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1527 tx->basematerialflags |= MATERIALFLAG_WATERALPHA | MATERIALFLAG_NOSHADOW;
1528 tx->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1530 else if (!strncmp(tx->name, "sky", 3))
1531 tx->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
1533 tx->basematerialflags |= MATERIALFLAG_WALL;
1534 if (tx->skinframes[0] && tx->skinframes[0]->fog)
1535 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1537 // start out with no animation
1538 tx->currentframe = tx;
1539 tx->currentskinframe = tx->skinframes[0];
1543 // sequence the animations
1544 for (i = 0;i < m->nummiptex;i++)
1546 tx = loadmodel->data_textures + i;
1547 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1549 if (tx->anim_total[0] || tx->anim_total[1])
1550 continue; // already sequenced
1552 // find the number of frames in the animation
1553 memset(anims, 0, sizeof(anims));
1554 memset(altanims, 0, sizeof(altanims));
1556 for (j = i;j < m->nummiptex;j++)
1558 tx2 = loadmodel->data_textures + j;
1559 if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
1563 if (num >= '0' && num <= '9')
1564 anims[num - '0'] = tx2;
1565 else if (num >= 'a' && num <= 'j')
1566 altanims[num - 'a'] = tx2;
1568 Con_Printf("Bad animating texture %s\n", tx->name);
1572 for (j = 0;j < 10;j++)
1579 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
1582 for (j = 0;j < max;j++)
1586 Con_Printf("Missing frame %i of %s\n", j, tx->name);
1590 for (j = 0;j < altmax;j++)
1594 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
1603 // if there is no alternate animation, duplicate the primary
1604 // animation into the alternate
1606 for (k = 0;k < 10;k++)
1607 altanims[k] = anims[k];
1610 // link together the primary animation
1611 for (j = 0;j < max;j++)
1614 tx2->animated = true;
1615 tx2->anim_total[0] = max;
1616 tx2->anim_total[1] = altmax;
1617 for (k = 0;k < 10;k++)
1619 tx2->anim_frames[0][k] = anims[k];
1620 tx2->anim_frames[1][k] = altanims[k];
1624 // if there really is an alternate anim...
1625 if (anims[0] != altanims[0])
1627 // link together the alternate animation
1628 for (j = 0;j < altmax;j++)
1631 tx2->animated = true;
1632 // the primary/alternate are reversed here
1633 tx2->anim_total[0] = altmax;
1634 tx2->anim_total[1] = max;
1635 for (k = 0;k < 10;k++)
1637 tx2->anim_frames[0][k] = altanims[k];
1638 tx2->anim_frames[1][k] = anims[k];
1645 static void Mod_Q1BSP_LoadLighting(lump_t *l)
1648 unsigned char *in, *out, *data, d;
1649 char litfilename[MAX_QPATH];
1650 char dlitfilename[MAX_QPATH];
1651 fs_offset_t filesize;
1652 if (loadmodel->brush.ishlbsp) // LordHavoc: load the colored lighting data straight
1654 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1655 for (i=0; i<l->filelen; i++)
1656 loadmodel->brushq1.lightdata[i] = mod_base[l->fileofs+i] >>= 1;
1658 else if (loadmodel->brush.ismcbsp)
1660 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1661 memcpy(loadmodel->brushq1.lightdata, mod_base + l->fileofs, l->filelen);
1663 else // LordHavoc: bsp version 29 (normal white lighting)
1665 // LordHavoc: hope is not lost yet, check for a .lit file to load
1666 strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
1667 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
1668 strlcpy (dlitfilename, litfilename, sizeof (dlitfilename));
1669 strlcat (litfilename, ".lit", sizeof (litfilename));
1670 strlcat (dlitfilename, ".dlit", sizeof (dlitfilename));
1671 data = (unsigned char*) FS_LoadFile(litfilename, tempmempool, false, &filesize);
1674 if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1676 i = LittleLong(((int *)data)[1]);
1679 Con_DPrintf("loaded %s\n", litfilename);
1680 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1681 memcpy(loadmodel->brushq1.lightdata, data + 8, filesize - 8);
1683 data = (unsigned char*) FS_LoadFile(dlitfilename, tempmempool, false, &filesize);
1686 if (filesize == (fs_offset_t)(8 + l->filelen * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
1688 i = LittleLong(((int *)data)[1]);
1691 Con_DPrintf("loaded %s\n", dlitfilename);
1692 loadmodel->brushq1.nmaplightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
1693 memcpy(loadmodel->brushq1.nmaplightdata, data + 8, filesize - 8);
1694 loadmodel->brushq3.deluxemapping_modelspace = false;
1695 loadmodel->brushq3.deluxemapping = true;
1704 Con_Printf("Unknown .lit file version (%d)\n", i);
1706 else if (filesize == 8)
1707 Con_Print("Empty .lit file, ignoring\n");
1709 Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", (int) filesize, (int) (8 + l->filelen * 3));
1716 // LordHavoc: oh well, expand the white lighting data
1719 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen*3);
1720 in = mod_base + l->fileofs;
1721 out = loadmodel->brushq1.lightdata;
1722 for (i = 0;i < l->filelen;i++)
1732 static void Mod_Q1BSP_LoadVisibility(lump_t *l)
1734 loadmodel->brushq1.num_compressedpvs = 0;
1735 loadmodel->brushq1.data_compressedpvs = NULL;
1738 loadmodel->brushq1.num_compressedpvs = l->filelen;
1739 loadmodel->brushq1.data_compressedpvs = (unsigned char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1740 memcpy(loadmodel->brushq1.data_compressedpvs, mod_base + l->fileofs, l->filelen);
1743 // used only for HalfLife maps
1744 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
1746 char key[128], value[4096];
1751 if (!COM_ParseTokenConsole(&data))
1753 if (com_token[0] != '{')
1757 if (!COM_ParseTokenConsole(&data))
1759 if (com_token[0] == '}')
1760 break; // end of worldspawn
1761 if (com_token[0] == '_')
1762 strlcpy(key, com_token + 1, sizeof(key));
1764 strlcpy(key, com_token, sizeof(key));
1765 while (key[strlen(key)-1] == ' ') // remove trailing spaces
1766 key[strlen(key)-1] = 0;
1767 if (!COM_ParseTokenConsole(&data))
1769 dpsnprintf(value, sizeof(value), "%s", com_token);
1770 if (!strcmp("wad", key)) // for HalfLife maps
1772 if (loadmodel->brush.ishlbsp)
1775 for (i = 0;i < (int)sizeof(value);i++)
1776 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
1780 for (;i < (int)sizeof(value);i++)
1782 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
1783 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
1785 else if (value[i] == ';' || value[i] == 0)
1789 strlcpy(wadname, "textures/", sizeof(wadname));
1790 strlcat(wadname, &value[j], sizeof(wadname));
1791 W_LoadTextureWadFile(wadname, false);
1803 static void Mod_Q1BSP_LoadEntities(lump_t *l)
1805 loadmodel->brush.entities = NULL;
1808 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
1809 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
1810 if (loadmodel->brush.ishlbsp)
1811 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
1815 static void Mod_Q1BSP_LoadVertexes(lump_t *l)
1821 in = (dvertex_t *)(mod_base + l->fileofs);
1822 if (l->filelen % sizeof(*in))
1823 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
1824 count = l->filelen / sizeof(*in);
1825 out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1827 loadmodel->brushq1.vertexes = out;
1828 loadmodel->brushq1.numvertexes = count;
1830 for ( i=0 ; i<count ; i++, in++, out++)
1832 out->position[0] = LittleFloat(in->point[0]);
1833 out->position[1] = LittleFloat(in->point[1]);
1834 out->position[2] = LittleFloat(in->point[2]);
1838 // The following two functions should be removed and MSG_* or SZ_* function sets adjusted so they
1839 // can be used for this
1841 int SB_ReadInt (unsigned char **buffer)
1844 i = ((*buffer)[0]) + 256*((*buffer)[1]) + 65536*((*buffer)[2]) + 16777216*((*buffer)[3]);
1850 float SB_ReadFloat (unsigned char **buffer)
1858 u.i = SB_ReadInt (buffer);
1862 static void Mod_Q1BSP_LoadSubmodels(lump_t *l, hullinfo_t *hullinfo)
1864 unsigned char *index;
1868 index = (unsigned char *)(mod_base + l->fileofs);
1869 if (l->filelen % (48+4*hullinfo->filehulls))
1870 Host_Error ("Mod_Q1BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
1872 count = l->filelen / (48+4*hullinfo->filehulls);
1873 out = (dmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
1875 loadmodel->brushq1.submodels = out;
1876 loadmodel->brush.numsubmodels = count;
1878 for (i = 0; i < count; i++, out++)
1880 // spread out the mins / maxs by a pixel
1881 out->mins[0] = SB_ReadFloat (&index) - 1;
1882 out->mins[1] = SB_ReadFloat (&index) - 1;
1883 out->mins[2] = SB_ReadFloat (&index) - 1;
1884 out->maxs[0] = SB_ReadFloat (&index) + 1;
1885 out->maxs[1] = SB_ReadFloat (&index) + 1;
1886 out->maxs[2] = SB_ReadFloat (&index) + 1;
1887 out->origin[0] = SB_ReadFloat (&index);
1888 out->origin[1] = SB_ReadFloat (&index);
1889 out->origin[2] = SB_ReadFloat (&index);
1890 for (j = 0; j < hullinfo->filehulls; j++)
1891 out->headnode[j] = SB_ReadInt (&index);
1892 out->visleafs = SB_ReadInt (&index);
1893 out->firstface = SB_ReadInt (&index);
1894 out->numfaces = SB_ReadInt (&index);
1898 static void Mod_Q1BSP_LoadEdges(lump_t *l)
1904 in = (dedge_t *)(mod_base + l->fileofs);
1905 if (l->filelen % sizeof(*in))
1906 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
1907 count = l->filelen / sizeof(*in);
1908 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1910 loadmodel->brushq1.edges = out;
1911 loadmodel->brushq1.numedges = count;
1913 for ( i=0 ; i<count ; i++, in++, out++)
1915 out->v[0] = (unsigned short)LittleShort(in->v[0]);
1916 out->v[1] = (unsigned short)LittleShort(in->v[1]);
1917 if (out->v[0] >= loadmodel->brushq1.numvertexes || out->v[1] >= loadmodel->brushq1.numvertexes)
1919 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);
1926 static void Mod_Q1BSP_LoadTexinfo(lump_t *l)
1930 int i, j, k, count, miptex;
1932 in = (texinfo_t *)(mod_base + l->fileofs);
1933 if (l->filelen % sizeof(*in))
1934 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
1935 count = l->filelen / sizeof(*in);
1936 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
1938 loadmodel->brushq1.texinfo = out;
1939 loadmodel->brushq1.numtexinfo = count;
1941 for (i = 0;i < count;i++, in++, out++)
1943 for (k = 0;k < 2;k++)
1944 for (j = 0;j < 4;j++)
1945 out->vecs[k][j] = LittleFloat(in->vecs[k][j]);
1947 miptex = LittleLong(in->miptex);
1948 out->flags = LittleLong(in->flags);
1950 out->texture = NULL;
1951 if (loadmodel->data_textures)
1953 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
1954 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
1956 out->texture = loadmodel->data_textures + miptex;
1958 if (out->flags & TEX_SPECIAL)
1960 // if texture chosen is NULL or the shader needs a lightmap,
1961 // force to notexture water shader
1962 if (out->texture == NULL || out->texture->basematerialflags & MATERIALFLAG_WALL)
1963 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 1);
1967 // if texture chosen is NULL, force to notexture
1968 if (out->texture == NULL)
1969 out->texture = loadmodel->data_textures + (loadmodel->num_textures - 2);
1975 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
1980 mins[0] = mins[1] = mins[2] = 9999;
1981 maxs[0] = maxs[1] = maxs[2] = -9999;
1983 for (i = 0;i < numverts;i++)
1985 for (j = 0;j < 3;j++, v++)
1995 #define MAX_SUBDIVPOLYTRIANGLES 4096
1996 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
1998 static int subdivpolyverts, subdivpolytriangles;
1999 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
2000 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
2002 static int subdivpolylookupvert(vec3_t v)
2005 for (i = 0;i < subdivpolyverts;i++)
2006 if (subdivpolyvert[i][0] == v[0]
2007 && subdivpolyvert[i][1] == v[1]
2008 && subdivpolyvert[i][2] == v[2])
2010 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
2011 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
2012 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
2013 return subdivpolyverts++;
2016 static void SubdividePolygon(int numverts, float *verts)
2018 int i, i1, i2, i3, f, b, c, p;
2019 vec3_t mins, maxs, front[256], back[256];
2020 float m, *pv, *cv, dist[256], frac;
2023 Host_Error("SubdividePolygon: ran out of verts in buffer");
2025 BoundPoly(numverts, verts, mins, maxs);
2027 for (i = 0;i < 3;i++)
2029 m = (mins[i] + maxs[i]) * 0.5;
2030 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
2031 if (maxs[i] - m < 8)
2033 if (m - mins[i] < 8)
2037 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
2038 dist[c] = cv[i] - m;
2041 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
2045 VectorCopy(pv, front[f]);
2050 VectorCopy(pv, back[b]);
2053 if (dist[p] == 0 || dist[c] == 0)
2055 if ((dist[p] > 0) != (dist[c] > 0) )
2058 frac = dist[p] / (dist[p] - dist[c]);
2059 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
2060 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
2061 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
2067 SubdividePolygon(f, front[0]);
2068 SubdividePolygon(b, back[0]);
2072 i1 = subdivpolylookupvert(verts);
2073 i2 = subdivpolylookupvert(verts + 3);
2074 for (i = 2;i < numverts;i++)
2076 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
2078 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
2082 i3 = subdivpolylookupvert(verts + i * 3);
2083 subdivpolyindex[subdivpolytriangles][0] = i1;
2084 subdivpolyindex[subdivpolytriangles][1] = i2;
2085 subdivpolyindex[subdivpolytriangles][2] = i3;
2087 subdivpolytriangles++;
2091 //Breaks a polygon up along axial 64 unit
2092 //boundaries so that turbulent and sky warps
2093 //can be done reasonably.
2094 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
2100 subdivpolytriangles = 0;
2101 subdivpolyverts = 0;
2102 SubdividePolygon(surface->num_vertices, (surface->mesh->data_vertex3f + 3 * surface->num_firstvertex));
2103 if (subdivpolytriangles < 1)
2104 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?");
2106 surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
2107 mesh->num_vertices = subdivpolyverts;
2108 mesh->num_triangles = subdivpolytriangles;
2109 mesh->vertex = (surfvertex_t *)(mesh + 1);
2110 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
2111 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
2113 for (i = 0;i < mesh->num_triangles;i++)
2114 for (j = 0;j < 3;j++)
2115 mesh->index[i*3+j] = subdivpolyindex[i][j];
2117 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
2119 VectorCopy(subdivpolyvert[i], v->v);
2120 v->st[0] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[0]);
2121 v->st[1] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[1]);
2126 static qboolean Mod_Q1BSP_AllocLightmapBlock(int *lineused, int totalwidth, int totalheight, int blockwidth, int blockheight, int *outx, int *outy)
2129 int bestx = totalwidth, besty = 0;
2130 // find the left-most space we can find
2131 for (y = 0;y <= totalheight - blockheight;y++)
2134 for (y2 = 0;y2 < blockheight;y2++)
2135 x2 = max(x2, lineused[y+y2]);
2142 // if the best was not good enough, return failure
2143 if (bestx > totalwidth - blockwidth)
2145 // we found a good spot
2150 // now mark the space used
2151 for (y2 = 0;y2 < blockheight;y2++)
2152 lineused[besty+y2] = bestx + blockwidth;
2157 static void Mod_Q1BSP_LoadFaces(lump_t *l)
2160 msurface_t *surface;
2161 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber;
2162 float texmins[2], texmaxs[2], val, lightmaptexcoordscale;
2163 #define LIGHTMAPSIZE 256
2164 rtexture_t *lightmaptexture, *deluxemaptexture;
2165 int lightmap_lineused[LIGHTMAPSIZE];
2167 in = (dface_t *)(mod_base + l->fileofs);
2168 if (l->filelen % sizeof(*in))
2169 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
2170 count = l->filelen / sizeof(*in);
2171 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
2172 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
2174 loadmodel->num_surfaces = count;
2178 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs);surfacenum < count;surfacenum++, in++)
2180 numedges = LittleShort(in->numedges);
2181 totalverts += numedges;
2182 totaltris += numedges - 2;
2185 Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false, false);
2187 lightmaptexture = NULL;
2188 deluxemaptexture = r_texture_blanknormalmap;
2190 lightmaptexcoordscale = 1.0f / (float)LIGHTMAPSIZE;
2194 for (surfacenum = 0, in = (dface_t *)(mod_base + l->fileofs), surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, in++, surface++)
2196 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
2198 // FIXME: validate edges, texinfo, etc?
2199 firstedge = LittleLong(in->firstedge);
2200 numedges = LittleShort(in->numedges);
2201 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)
2202 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)", firstedge, numedges, loadmodel->brushq1.numsurfedges);
2203 i = LittleShort(in->texinfo);
2204 if ((unsigned int) i >= (unsigned int) loadmodel->brushq1.numtexinfo)
2205 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)", i, loadmodel->brushq1.numtexinfo);
2206 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + i;
2207 surface->texture = surface->lightmapinfo->texinfo->texture;
2209 planenum = LittleShort(in->planenum);
2210 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
2211 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)", planenum, loadmodel->brush.num_planes);
2213 //surface->flags = surface->texture->flags;
2214 //if (LittleShort(in->side))
2215 // surface->flags |= SURF_PLANEBACK;
2216 //surface->plane = loadmodel->brush.data_planes + planenum;
2218 surface->num_firstvertex = totalverts;
2219 surface->num_vertices = numedges;
2220 surface->num_firsttriangle = totaltris;
2221 surface->num_triangles = numedges - 2;
2222 totalverts += numedges;
2223 totaltris += numedges - 2;
2225 // convert edges back to a normal polygon
2226 for (i = 0;i < surface->num_vertices;i++)
2228 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
2231 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2233 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2234 s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2235 t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2236 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
2237 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
2238 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
2239 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
2240 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
2243 for (i = 0;i < surface->num_triangles;i++)
2245 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
2246 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
2247 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
2250 // compile additional data about the surface geometry
2251 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);
2252 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);
2253 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
2255 // generate surface extents information
2256 texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2257 texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2258 for (i = 1;i < surface->num_vertices;i++)
2260 for (j = 0;j < 2;j++)
2262 val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
2263 texmins[j] = min(texmins[j], val);
2264 texmaxs[j] = max(texmaxs[j], val);
2267 for (i = 0;i < 2;i++)
2269 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
2270 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
2273 smax = surface->lightmapinfo->extents[0] >> 4;
2274 tmax = surface->lightmapinfo->extents[1] >> 4;
2275 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2276 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2279 for (i = 0;i < MAXLIGHTMAPS;i++)
2280 surface->lightmapinfo->styles[i] = in->styles[i];
2281 surface->lightmaptexture = NULL;
2282 surface->deluxemaptexture = r_texture_blanknormalmap;
2283 i = LittleLong(in->lightofs);
2286 surface->lightmapinfo->samples = NULL;
2287 // give non-lightmapped water a 1x white lightmap
2288 if ((surface->texture->basematerialflags & MATERIALFLAG_WATER) && (surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
2290 surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2291 surface->lightmapinfo->styles[0] = 0;
2292 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
2295 else if (loadmodel->brush.ishlbsp) // LordHavoc: HalfLife map (bsp version 30)
2296 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + i;
2297 else // LordHavoc: white lighting (bsp version 29)
2299 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (i * 3);
2300 if (loadmodel->brushq1.nmaplightdata)
2301 surface->lightmapinfo->nmapsamples = loadmodel->brushq1.nmaplightdata + (i * 3);
2304 // check if we should apply a lightmap to this
2305 if (!(surface->lightmapinfo->texinfo->flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
2307 int i, iu, iv, lightmapx, lightmapy;
2308 float u, v, ubase, vbase, uscale, vscale;
2310 if (ssize > 256 || tsize > 256)
2311 Host_Error("Bad surface extents");
2312 // force lightmap upload on first time seeing the surface
2313 surface->cached_dlight = true;
2314 // stainmap for permanent marks on walls
2315 surface->lightmapinfo->stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2317 memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
2319 // find a place for this lightmap
2320 if (!lightmaptexture || !Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, LIGHTMAPSIZE, LIGHTMAPSIZE, ssize, tsize, &lightmapx, &lightmapy))
2322 // allocate a texture pool if we need it
2323 if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
2324 loadmodel->texturepool = R_AllocTexturePool();
2325 // could not find room, make a new lightmap
2326 lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%i", lightmapnumber), LIGHTMAPSIZE, LIGHTMAPSIZE, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2327 if (loadmodel->brushq1.nmaplightdata)
2328 deluxemaptexture = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%i", lightmapnumber), LIGHTMAPSIZE, LIGHTMAPSIZE, NULL, loadmodel->brushq1.lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
2330 memset(lightmap_lineused, 0, sizeof(lightmap_lineused));
2331 Mod_Q1BSP_AllocLightmapBlock(lightmap_lineused, LIGHTMAPSIZE, LIGHTMAPSIZE, ssize, tsize, &lightmapx, &lightmapy);
2334 surface->lightmaptexture = lightmaptexture;
2335 surface->deluxemaptexture = deluxemaptexture;
2336 surface->lightmapinfo->lightmaporigin[0] = lightmapx;
2337 surface->lightmapinfo->lightmaporigin[1] = lightmapy;
2339 ubase = lightmapx * lightmaptexcoordscale;
2340 vbase = lightmapy * lightmaptexcoordscale;
2341 uscale = lightmaptexcoordscale;
2342 vscale = lightmaptexcoordscale;
2344 for (i = 0;i < surface->num_vertices;i++)
2346 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);
2347 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);
2348 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
2349 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
2350 // LordHavoc: calc lightmap data offset for vertex lighting to use
2353 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
2359 static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
2362 // Host_Error("Mod_Q1BSP_LoadNodes_RecursiveSetParent: runaway recursion");
2363 node->parent = parent;
2366 // this is a node, recurse to children
2367 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
2368 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
2369 // combine supercontents of children
2370 node->combinedsupercontents = node->children[0]->combinedsupercontents | node->children[1]->combinedsupercontents;
2375 mleaf_t *leaf = (mleaf_t *)node;
2376 // if this is a leaf, calculate supercontents mask from all collidable
2377 // primitives in the leaf (brushes and collision surfaces)
2378 // also flag if the leaf contains any collision surfaces
2379 leaf->combinedsupercontents = 0;
2380 // combine the supercontents values of all brushes in this leaf
2381 for (j = 0;j < leaf->numleafbrushes;j++)
2382 leaf->combinedsupercontents |= loadmodel->brush.data_brushes[leaf->firstleafbrush[j]].texture->supercontents;
2383 // check if this leaf contains any collision surfaces (q3 patches)
2384 for (j = 0;j < leaf->numleafsurfaces;j++)
2386 msurface_t *surface = loadmodel->data_surfaces + leaf->firstleafsurface[j];
2387 if (surface->num_collisiontriangles)
2389 leaf->containscollisionsurfaces = true;
2390 leaf->combinedsupercontents |= surface->texture->supercontents;
2396 static void Mod_Q1BSP_LoadNodes(lump_t *l)
2402 in = (dnode_t *)(mod_base + l->fileofs);
2403 if (l->filelen % sizeof(*in))
2404 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
2405 count = l->filelen / sizeof(*in);
2406 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2408 loadmodel->brush.data_nodes = out;
2409 loadmodel->brush.num_nodes = count;
2411 for ( i=0 ; i<count ; i++, in++, out++)
2413 for (j=0 ; j<3 ; j++)
2415 out->mins[j] = LittleShort(in->mins[j]);
2416 out->maxs[j] = LittleShort(in->maxs[j]);
2419 p = LittleLong(in->planenum);
2420 out->plane = loadmodel->brush.data_planes + p;
2422 out->firstsurface = LittleShort(in->firstface);
2423 out->numsurfaces = LittleShort(in->numfaces);
2425 for (j=0 ; j<2 ; j++)
2427 p = LittleShort(in->children[j]);
2429 out->children[j] = loadmodel->brush.data_nodes + p;
2431 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + (-1 - p));
2435 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
2438 static void Mod_Q1BSP_LoadLeafs(lump_t *l)
2444 in = (dleaf_t *)(mod_base + l->fileofs);
2445 if (l->filelen % sizeof(*in))
2446 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2447 count = l->filelen / sizeof(*in);
2448 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2450 loadmodel->brush.data_leafs = out;
2451 loadmodel->brush.num_leafs = count;
2452 // get visleafs from the submodel data
2453 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2454 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2455 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2456 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2458 for ( i=0 ; i<count ; i++, in++, out++)
2460 for (j=0 ; j<3 ; j++)
2462 out->mins[j] = LittleShort(in->mins[j]);
2463 out->maxs[j] = LittleShort(in->maxs[j]);
2466 // FIXME: this function could really benefit from some error checking
2468 out->contents = LittleLong(in->contents);
2470 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + LittleShort(in->firstmarksurface);
2471 out->numleafsurfaces = LittleShort(in->nummarksurfaces);
2472 if (out->firstleafsurface < 0 || LittleShort(in->firstmarksurface) + out->numleafsurfaces > loadmodel->brush.num_leafsurfaces)
2474 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);
2475 out->firstleafsurface = NULL;
2476 out->numleafsurfaces = 0;
2479 out->clusterindex = i - 1;
2480 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
2481 out->clusterindex = -1;
2483 p = LittleLong(in->visofs);
2484 // ignore visofs errors on leaf 0 (solid)
2485 if (p >= 0 && out->clusterindex >= 0)
2487 if (p >= loadmodel->brushq1.num_compressedpvs)
2488 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
2490 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);
2493 for (j = 0;j < 4;j++)
2494 out->ambient_sound_level[j] = in->ambient_level[j];
2496 // FIXME: Insert caustics here
2500 qboolean Mod_Q1BSP_CheckWaterAlphaSupport(void)
2504 const unsigned char *pvs;
2505 // check all liquid leafs to see if they can see into empty leafs, if any
2506 // can we can assume this map supports r_wateralpha
2507 for (i = 0, leaf = loadmodel->brush.data_leafs;i < loadmodel->brush.num_leafs;i++, leaf++)
2509 if ((leaf->contents == CONTENTS_WATER || leaf->contents == CONTENTS_SLIME) && (leaf->clusterindex >= 0 && loadmodel->brush.data_pvsclusters))
2511 pvs = loadmodel->brush.data_pvsclusters + leaf->clusterindex * loadmodel->brush.num_pvsclusterbytes;
2512 for (j = 0;j < loadmodel->brush.num_leafs;j++)
2513 if (CHECKPVSBIT(pvs, loadmodel->brush.data_leafs[j].clusterindex) && loadmodel->brush.data_leafs[j].contents == CONTENTS_EMPTY)
2520 static void Mod_Q1BSP_LoadClipnodes(lump_t *l, hullinfo_t *hullinfo)
2522 dclipnode_t *in, *out;
2526 in = (dclipnode_t *)(mod_base + l->fileofs);
2527 if (l->filelen % sizeof(*in))
2528 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
2529 count = l->filelen / sizeof(*in);
2530 out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2532 loadmodel->brushq1.clipnodes = out;
2533 loadmodel->brushq1.numclipnodes = count;
2535 for (i = 1; i < hullinfo->numhulls; i++)
2537 hull = &loadmodel->brushq1.hulls[i];
2538 hull->clipnodes = out;
2539 hull->firstclipnode = 0;
2540 hull->lastclipnode = count-1;
2541 hull->planes = loadmodel->brush.data_planes;
2542 hull->clip_mins[0] = hullinfo->hullsizes[i][0][0];
2543 hull->clip_mins[1] = hullinfo->hullsizes[i][0][1];
2544 hull->clip_mins[2] = hullinfo->hullsizes[i][0][2];
2545 hull->clip_maxs[0] = hullinfo->hullsizes[i][1][0];
2546 hull->clip_maxs[1] = hullinfo->hullsizes[i][1][1];
2547 hull->clip_maxs[2] = hullinfo->hullsizes[i][1][2];
2548 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
2551 for (i=0 ; i<count ; i++, out++, in++)
2553 out->planenum = LittleLong(in->planenum);
2554 out->children[0] = LittleShort(in->children[0]);
2555 out->children[1] = LittleShort(in->children[1]);
2556 if (out->planenum < 0 || out->planenum >= loadmodel->brush.num_planes)
2557 Host_Error("Corrupt clipping hull(out of range planenum)");
2558 if (out->children[0] >= count || out->children[1] >= count)
2559 Host_Error("Corrupt clipping hull(out of range child)");
2563 //Duplicate the drawing hull structure as a clipping hull
2564 static void Mod_Q1BSP_MakeHull0(void)
2571 hull = &loadmodel->brushq1.hulls[0];
2573 in = loadmodel->brush.data_nodes;
2574 out = (dclipnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(dclipnode_t));
2576 hull->clipnodes = out;
2577 hull->firstclipnode = 0;
2578 hull->lastclipnode = loadmodel->brush.num_nodes - 1;
2579 hull->planes = loadmodel->brush.data_planes;
2581 for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
2583 out->planenum = in->plane - loadmodel->brush.data_planes;
2584 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
2585 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
2589 static void Mod_Q1BSP_LoadLeaffaces(lump_t *l)
2594 in = (short *)(mod_base + l->fileofs);
2595 if (l->filelen % sizeof(*in))
2596 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
2597 loadmodel->brush.num_leafsurfaces = l->filelen / sizeof(*in);
2598 loadmodel->brush.data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
2600 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
2602 j = (unsigned) LittleShort(in[i]);
2603 if (j >= loadmodel->num_surfaces)
2604 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
2605 loadmodel->brush.data_leafsurfaces[i] = j;
2609 static void Mod_Q1BSP_LoadSurfedges(lump_t *l)
2614 in = (int *)(mod_base + l->fileofs);
2615 if (l->filelen % sizeof(*in))
2616 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
2617 loadmodel->brushq1.numsurfedges = l->filelen / sizeof(*in);
2618 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
2620 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
2621 loadmodel->brushq1.surfedges[i] = LittleLong(in[i]);
2625 static void Mod_Q1BSP_LoadPlanes(lump_t *l)
2631 in = (dplane_t *)(mod_base + l->fileofs);
2632 if (l->filelen % sizeof(*in))
2633 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
2635 loadmodel->brush.num_planes = l->filelen / sizeof(*in);
2636 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
2638 for (i = 0;i < loadmodel->brush.num_planes;i++, in++, out++)
2640 out->normal[0] = LittleFloat(in->normal[0]);
2641 out->normal[1] = LittleFloat(in->normal[1]);
2642 out->normal[2] = LittleFloat(in->normal[2]);
2643 out->dist = LittleFloat(in->dist);
2649 static void Mod_Q1BSP_LoadMapBrushes(void)
2653 int submodel, numbrushes;
2654 qboolean firstbrush;
2655 char *text, *maptext;
2656 char mapfilename[MAX_QPATH];
2657 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
2658 strlcat (mapfilename, ".map", sizeof (mapfilename));
2659 maptext = (unsigned char*) FS_LoadFile(mapfilename, tempmempool, false, NULL);
2663 if (!COM_ParseTokenConsole(&data))
2668 if (!COM_ParseTokenConsole(&data))
2670 if (com_token[0] != '{')
2676 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
2679 if (!COM_ParseTokenConsole(&data))
2681 if (com_token[0] == '}')
2682 break; // end of entity
2683 if (com_token[0] == '{')
2690 if (submodel > loadmodel->brush.numsubmodels)
2692 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
2696 model = loadmodel->brush.submodels[submodel];
2703 if (!COM_ParseTokenConsole(&data))
2705 if (com_token[0] == '}')
2706 break; // end of brush
2707 // each brush face should be this format:
2708 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
2709 // FIXME: support hl .map format
2710 for (pointnum = 0;pointnum < 3;pointnum++)
2712 COM_ParseTokenConsole(&data);
2713 for (componentnum = 0;componentnum < 3;componentnum++)
2715 COM_ParseTokenConsole(&data);
2716 point[pointnum][componentnum] = atof(com_token);
2718 COM_ParseTokenConsole(&data);
2720 COM_ParseTokenConsole(&data);
2721 strlcpy(facetexture, com_token, sizeof(facetexture));
2722 COM_ParseTokenConsole(&data);
2723 //scroll_s = atof(com_token);
2724 COM_ParseTokenConsole(&data);
2725 //scroll_t = atof(com_token);
2726 COM_ParseTokenConsole(&data);
2727 //rotate = atof(com_token);
2728 COM_ParseTokenConsole(&data);
2729 //scale_s = atof(com_token);
2730 COM_ParseTokenConsole(&data);
2731 //scale_t = atof(com_token);
2732 TriangleNormal(point[0], point[1], point[2], planenormal);
2733 VectorNormalizeDouble(planenormal);
2734 planedist = DotProduct(point[0], planenormal);
2735 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
2745 #define MAX_PORTALPOINTS 64
2747 typedef struct portal_s
2750 mnode_t *nodes[2]; // [0] = front side of plane
2751 struct portal_s *next[2];
2753 double points[3*MAX_PORTALPOINTS];
2754 struct portal_s *chain; // all portals are linked into a list
2758 static portal_t *portalchain;
2765 static portal_t *AllocPortal(void)
2768 p = (portal_t *)Mem_Alloc(loadmodel->mempool, sizeof(portal_t));
2769 p->chain = portalchain;
2774 static void FreePortal(portal_t *p)
2779 static void Mod_Q1BSP_RecursiveRecalcNodeBBox(mnode_t *node)
2781 // process only nodes (leafs already had their box calculated)
2785 // calculate children first
2786 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[0]);
2787 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[1]);
2789 // make combined bounding box from children
2790 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
2791 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
2792 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
2793 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
2794 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
2795 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
2798 static void Mod_Q1BSP_FinalizePortals(void)
2800 int i, j, numportals, numpoints;
2801 portal_t *p, *pnext;
2804 mleaf_t *leaf, *endleaf;
2806 // tally up portal and point counts and recalculate bounding boxes for all
2807 // leafs (because qbsp is very sloppy)
2808 leaf = loadmodel->brush.data_leafs;
2809 endleaf = leaf + loadmodel->brush.num_leafs;
2810 for (;leaf < endleaf;leaf++)
2812 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
2813 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
2820 // note: this check must match the one below or it will usually corrupt memory
2821 // 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
2822 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2825 numpoints += p->numpoints * 2;
2829 loadmodel->brush.data_portals = (mportal_t *)Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
2830 loadmodel->brush.num_portals = numportals;
2831 loadmodel->brush.data_portalpoints = (mvertex_t *)((unsigned char *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
2832 loadmodel->brush.num_portalpoints = numpoints;
2833 // clear all leaf portal chains
2834 for (i = 0;i < loadmodel->brush.num_leafs;i++)
2835 loadmodel->brush.data_leafs[i].portals = NULL;
2836 // process all portals in the global portal chain, while freeing them
2837 portal = loadmodel->brush.data_portals;
2838 point = loadmodel->brush.data_portalpoints;
2845 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1])
2847 // note: this check must match the one above or it will usually corrupt memory
2848 // 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
2849 if (((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
2851 // first make the back to front portal(forward portal)
2852 portal->points = point;
2853 portal->numpoints = p->numpoints;
2854 portal->plane.dist = p->plane.dist;
2855 VectorCopy(p->plane.normal, portal->plane.normal);
2856 portal->here = (mleaf_t *)p->nodes[1];
2857 portal->past = (mleaf_t *)p->nodes[0];
2859 for (j = 0;j < portal->numpoints;j++)
2861 VectorCopy(p->points + j*3, point->position);
2864 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2865 PlaneClassify(&portal->plane);
2867 // link into leaf's portal chain
2868 portal->next = portal->here->portals;
2869 portal->here->portals = portal;
2871 // advance to next portal
2874 // then make the front to back portal(backward portal)
2875 portal->points = point;
2876 portal->numpoints = p->numpoints;
2877 portal->plane.dist = -p->plane.dist;
2878 VectorNegate(p->plane.normal, portal->plane.normal);
2879 portal->here = (mleaf_t *)p->nodes[0];
2880 portal->past = (mleaf_t *)p->nodes[1];
2882 for (j = portal->numpoints - 1;j >= 0;j--)
2884 VectorCopy(p->points + j*3, point->position);
2887 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
2888 PlaneClassify(&portal->plane);
2890 // link into leaf's portal chain
2891 portal->next = portal->here->portals;
2892 portal->here->portals = portal;
2894 // advance to next portal
2897 // add the portal's polygon points to the leaf bounding boxes
2898 for (i = 0;i < 2;i++)
2900 leaf = (mleaf_t *)p->nodes[i];
2901 for (j = 0;j < p->numpoints;j++)
2903 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
2904 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
2905 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
2906 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
2907 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
2908 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
2915 // now recalculate the node bounding boxes from the leafs
2916 Mod_Q1BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes);
2924 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
2927 Host_Error("AddPortalToNodes: NULL front node");
2929 Host_Error("AddPortalToNodes: NULL back node");
2930 if (p->nodes[0] || p->nodes[1])
2931 Host_Error("AddPortalToNodes: already included");
2932 // 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
2934 p->nodes[0] = front;
2935 p->next[0] = (portal_t *)front->portals;
2936 front->portals = (mportal_t *)p;
2939 p->next[1] = (portal_t *)back->portals;
2940 back->portals = (mportal_t *)p;
2945 RemovePortalFromNode
2948 static void RemovePortalFromNodes(portal_t *portal)
2952 void **portalpointer;
2954 for (i = 0;i < 2;i++)
2956 node = portal->nodes[i];
2958 portalpointer = (void **) &node->portals;
2961 t = (portal_t *)*portalpointer;
2963 Host_Error("RemovePortalFromNodes: portal not in leaf");
2967 if (portal->nodes[0] == node)
2969 *portalpointer = portal->next[0];
2970 portal->nodes[0] = NULL;
2972 else if (portal->nodes[1] == node)
2974 *portalpointer = portal->next[1];
2975 portal->nodes[1] = NULL;
2978 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2982 if (t->nodes[0] == node)
2983 portalpointer = (void **) &t->next[0];
2984 else if (t->nodes[1] == node)
2985 portalpointer = (void **) &t->next[1];
2987 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
2992 #define PORTAL_DIST_EPSILON (1.0 / 32.0)
2993 static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
2996 mnode_t *front, *back, *other_node;
2997 mplane_t clipplane, *plane;
2998 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
2999 int numfrontpoints, numbackpoints;
3000 double frontpoints[3*MAX_PORTALPOINTS], backpoints[3*MAX_PORTALPOINTS];
3002 // if a leaf, we're done
3006 plane = node->plane;
3008 front = node->children[0];
3009 back = node->children[1];
3011 Host_Error("Mod_Q1BSP_RecursiveNodePortals: corrupt node hierarchy");
3013 // create the new portal by generating a polygon for the node plane,
3014 // and clipping it by all of the other portals(which came from nodes above this one)
3015 nodeportal = AllocPortal();
3016 nodeportal->plane = *plane;
3018 // 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)
3019 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);
3020 nodeportal->numpoints = 4;
3021 side = 0; // shut up compiler warning
3022 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
3024 clipplane = portal->plane;
3025 if (portal->nodes[0] == portal->nodes[1])
3026 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(1)");
3027 if (portal->nodes[0] == node)
3029 else if (portal->nodes[1] == node)
3031 clipplane.dist = -clipplane.dist;
3032 VectorNegate(clipplane.normal, clipplane.normal);
3036 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
3038 for (i = 0;i < nodeportal->numpoints*3;i++)
3039 frontpoints[i] = nodeportal->points[i];
3040 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);
3041 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
3045 if (nodeportal->numpoints < 3)
3047 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
3048 nodeportal->numpoints = 0;
3050 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
3052 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
3053 nodeportal->numpoints = 0;
3056 AddPortalToNodes(nodeportal, front, back);
3058 // split the portals of this node along this node's plane and assign them to the children of this node
3059 // (migrating the portals downward through the tree)
3060 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
3062 if (portal->nodes[0] == portal->nodes[1])
3063 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(2)");
3064 if (portal->nodes[0] == node)
3066 else if (portal->nodes[1] == node)
3069 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
3070 nextportal = portal->next[side];
3071 if (!portal->numpoints)
3074 other_node = portal->nodes[!side];
3075 RemovePortalFromNodes(portal);
3077 // cut the portal into two portals, one on each side of the node plane
3078 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);
3080 if (!numfrontpoints)
3083 AddPortalToNodes(portal, back, other_node);
3085 AddPortalToNodes(portal, other_node, back);
3091 AddPortalToNodes(portal, front, other_node);
3093 AddPortalToNodes(portal, other_node, front);
3097 // the portal is split
3098 splitportal = AllocPortal();
3099 temp = splitportal->chain;
3100 *splitportal = *portal;
3101 splitportal->chain = temp;
3102 for (i = 0;i < numbackpoints*3;i++)
3103 splitportal->points[i] = backpoints[i];
3104 splitportal->numpoints = numbackpoints;
3105 for (i = 0;i < numfrontpoints*3;i++)
3106 portal->points[i] = frontpoints[i];
3107 portal->numpoints = numfrontpoints;
3111 AddPortalToNodes(portal, front, other_node);
3112 AddPortalToNodes(splitportal, back, other_node);
3116 AddPortalToNodes(portal, other_node, front);
3117 AddPortalToNodes(splitportal, other_node, back);
3121 Mod_Q1BSP_RecursiveNodePortals(front);
3122 Mod_Q1BSP_RecursiveNodePortals(back);
3125 static void Mod_Q1BSP_MakePortals(void)
3128 Mod_Q1BSP_RecursiveNodePortals(loadmodel->brush.data_nodes);
3129 Mod_Q1BSP_FinalizePortals();
3132 static void Mod_Q1BSP_BuildLightmapUpdateChains(mempool_t *mempool, model_t *model)
3134 int i, j, stylecounts[256], totalcount, remapstyles[256];
3135 msurface_t *surface;
3136 memset(stylecounts, 0, sizeof(stylecounts));
3137 for (i = 0;i < model->nummodelsurfaces;i++)
3139 surface = model->data_surfaces + model->firstmodelsurface + i;
3140 for (j = 0;j < MAXLIGHTMAPS;j++)
3141 stylecounts[surface->lightmapinfo->styles[j]]++;
3144 model->brushq1.light_styles = 0;
3145 for (i = 0;i < 255;i++)
3149 remapstyles[i] = model->brushq1.light_styles++;
3150 totalcount += stylecounts[i] + 1;
3155 model->brushq1.light_style = (unsigned char *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(unsigned char));
3156 model->brushq1.light_stylevalue = (int *)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(int));
3157 model->brushq1.light_styleupdatechains = (msurface_t ***)Mem_Alloc(mempool, model->brushq1.light_styles * sizeof(msurface_t **));
3158 model->brushq1.light_styleupdatechainsbuffer = (msurface_t **)Mem_Alloc(mempool, totalcount * sizeof(msurface_t *));
3159 model->brushq1.light_styles = 0;
3160 for (i = 0;i < 255;i++)
3162 model->brushq1.light_style[model->brushq1.light_styles++] = i;
3164 for (i = 0;i < model->brushq1.light_styles;i++)
3166 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
3167 j += stylecounts[model->brushq1.light_style[i]] + 1;
3169 for (i = 0;i < model->nummodelsurfaces;i++)
3171 surface = model->data_surfaces + model->firstmodelsurface + i;
3172 for (j = 0;j < MAXLIGHTMAPS;j++)
3173 if (surface->lightmapinfo->styles[j] != 255)
3174 *model->brushq1.light_styleupdatechains[remapstyles[surface->lightmapinfo->styles[j]]]++ = surface;
3177 for (i = 0;i < model->brushq1.light_styles;i++)
3179 *model->brushq1.light_styleupdatechains[i] = NULL;
3180 model->brushq1.light_styleupdatechains[i] = model->brushq1.light_styleupdatechainsbuffer + j;
3181 j += stylecounts[model->brushq1.light_style[i]] + 1;
3185 //Returns PVS data for a given point
3186 //(note: can return NULL)
3187 static unsigned char *Mod_Q1BSP_GetPVS(model_t *model, const vec3_t p)
3190 node = model->brush.data_nodes;
3192 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
3193 if (((mleaf_t *)node)->clusterindex >= 0)
3194 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3199 static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
3203 float d = PlaneDiff(org, node->plane);
3205 node = node->children[0];
3206 else if (d < -radius)
3207 node = node->children[1];
3210 // go down both sides
3211 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
3212 node = node->children[1];
3215 // if this leaf is in a cluster, accumulate the pvs bits
3216 if (((mleaf_t *)node)->clusterindex >= 0)
3219 unsigned char *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3220 for (i = 0;i < pvsbytes;i++)
3221 pvsbuffer[i] |= pvs[i];
3225 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
3226 //of the given point.
3227 static int Mod_Q1BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength)
3229 int bytes = model->brush.num_pvsclusterbytes;
3230 bytes = min(bytes, pvsbufferlength);
3231 if (r_novis.integer || !model->brush.num_pvsclusters || !Mod_Q1BSP_GetPVS(model, org))
3233 memset(pvsbuffer, 0xFF, bytes);
3236 memset(pvsbuffer, 0, bytes);
3237 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes);
3241 static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
3246 VectorSubtract(inmaxs, inmins, size);
3247 if (cmodel->brush.ismcbsp)
3250 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3251 else if (size[2] < 48) // pick the nearest of 40 or 56
3252 hull = &cmodel->brushq1.hulls[2]; // 16x16x40
3254 hull = &cmodel->brushq1.hulls[1]; // 16x16x56
3256 else if (cmodel->brush.ishlbsp)
3259 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3260 else if (size[0] <= 32)
3262 if (size[2] < 54) // pick the nearest of 36 or 72
3263 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
3265 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
3268 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
3273 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3274 else if (size[0] <= 32)
3275 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
3277 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
3279 VectorCopy(inmins, outmins);
3280 VectorAdd(inmins, hull->clip_size, outmaxs);
3283 void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
3288 mempool_t *mainmempool;
3289 float dist, modelyawradius, modelradius, *vec;
3290 msurface_t *surface;
3291 int numshadowmeshtriangles;
3293 hullinfo_t hullinfo;
3295 mod->type = mod_brushq1;
3297 if (!memcmp (buffer, "MCBSPpad", 8))
3299 unsigned char *index;
3301 mod->brush.ismcbsp = true;
3302 mod->brush.ishlbsp = false;
3304 mod_base = (unsigned char*)buffer;
3308 i = SB_ReadInt (&index);
3309 if (i != MCBSPVERSION)
3310 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i)", mod->name, i, MCBSPVERSION);
3313 hullinfo.numhulls = LittleLong(*(int*)index); index += 4;
3314 hullinfo.filehulls = hullinfo.numhulls;
3315 VectorClear (hullinfo.hullsizes[0][0]);
3316 VectorClear (hullinfo.hullsizes[0][1]);
3317 for (i = 1; i < hullinfo.numhulls; i++)
3319 hullinfo.hullsizes[i][0][0] = SB_ReadFloat (&index);
3320 hullinfo.hullsizes[i][0][1] = SB_ReadFloat (&index);
3321 hullinfo.hullsizes[i][0][2] = SB_ReadFloat (&index);
3322 hullinfo.hullsizes[i][1][0] = SB_ReadFloat (&index);
3323 hullinfo.hullsizes[i][1][1] = SB_ReadFloat (&index);
3324 hullinfo.hullsizes[i][1][2] = SB_ReadFloat (&index);
3328 _header.version = 0;
3329 for (i = 0; i < HEADER_LUMPS; i++)
3331 _header.lumps[i].fileofs = SB_ReadInt (&index);
3332 _header.lumps[i].filelen = SB_ReadInt (&index);
3339 header = (dheader_t *)buffer;
3341 i = LittleLong(header->version);
3342 if (i != BSPVERSION && i != 30)
3343 Host_Error("Mod_Q1BSP_Load: %s has wrong version number(%i should be %i(Quake) or 30(HalfLife)", mod->name, i, BSPVERSION);
3344 mod->brush.ishlbsp = i == 30;
3345 mod->brush.ismcbsp = false;
3347 // fill in hull info
3348 VectorClear (hullinfo.hullsizes[0][0]);
3349 VectorClear (hullinfo.hullsizes[0][1]);
3350 if (mod->brush.ishlbsp)
3352 hullinfo.numhulls = 4;
3353 hullinfo.filehulls = 4;
3354 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
3355 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
3356 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
3357 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
3358 VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
3359 VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
3363 hullinfo.numhulls = 3;
3364 hullinfo.filehulls = 4;
3365 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
3366 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
3367 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
3368 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
3372 mod_base = (unsigned char*)buffer;
3373 for (i = 0; i < HEADER_LUMPS; i++)
3375 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
3376 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
3380 mod->soundfromcenter = true;
3381 mod->TraceBox = Mod_Q1BSP_TraceBox;
3382 mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
3383 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3384 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3385 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
3386 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
3387 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
3388 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
3389 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
3390 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
3391 mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
3392 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
3393 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3394 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3395 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
3397 if (loadmodel->isworldmodel)
3399 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
3400 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
3405 // store which lightmap format to use
3406 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
3408 mod->brush.qw_md4sum = 0;
3409 mod->brush.qw_md4sum2 = 0;
3410 for (i = 0;i < HEADER_LUMPS;i++)
3412 if (i == LUMP_ENTITIES)
3414 mod->brush.qw_md4sum ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3415 if (i == LUMP_VISIBILITY || i == LUMP_LEAFS || i == LUMP_NODES)
3417 mod->brush.qw_md4sum2 ^= LittleLong(Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen));
3420 Mod_Q1BSP_LoadEntities(&header->lumps[LUMP_ENTITIES]);
3421 Mod_Q1BSP_LoadVertexes(&header->lumps[LUMP_VERTEXES]);
3422 Mod_Q1BSP_LoadEdges(&header->lumps[LUMP_EDGES]);
3423 Mod_Q1BSP_LoadSurfedges(&header->lumps[LUMP_SURFEDGES]);
3424 Mod_Q1BSP_LoadTextures(&header->lumps[LUMP_TEXTURES]);
3425 Mod_Q1BSP_LoadLighting(&header->lumps[LUMP_LIGHTING]);
3426 Mod_Q1BSP_LoadPlanes(&header->lumps[LUMP_PLANES]);
3427 Mod_Q1BSP_LoadTexinfo(&header->lumps[LUMP_TEXINFO]);
3428 Mod_Q1BSP_LoadFaces(&header->lumps[LUMP_FACES]);
3429 Mod_Q1BSP_LoadLeaffaces(&header->lumps[LUMP_MARKSURFACES]);
3430 Mod_Q1BSP_LoadVisibility(&header->lumps[LUMP_VISIBILITY]);
3431 // load submodels before leafs because they contain the number of vis leafs
3432 Mod_Q1BSP_LoadSubmodels(&header->lumps[LUMP_MODELS], &hullinfo);
3433 Mod_Q1BSP_LoadLeafs(&header->lumps[LUMP_LEAFS]);
3434 Mod_Q1BSP_LoadNodes(&header->lumps[LUMP_NODES]);
3435 Mod_Q1BSP_LoadClipnodes(&header->lumps[LUMP_CLIPNODES], &hullinfo);
3437 // check if the map supports transparent water rendering
3438 loadmodel->brush.supportwateralpha = Mod_Q1BSP_CheckWaterAlphaSupport();
3440 if (mod->brushq1.data_compressedpvs)
3441 Mem_Free(mod->brushq1.data_compressedpvs);
3442 mod->brushq1.data_compressedpvs = NULL;
3443 mod->brushq1.num_compressedpvs = 0;
3445 Mod_Q1BSP_MakeHull0();
3446 Mod_Q1BSP_MakePortals();
3448 mod->numframes = 2; // regular and alternate animation
3451 mainmempool = mod->mempool;
3453 // make a single combined shadow mesh to allow optimized shadow volume creation
3454 numshadowmeshtriangles = 0;
3455 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3457 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
3458 numshadowmeshtriangles += surface->num_triangles;
3460 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
3461 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
3462 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));
3463 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true, false);
3464 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
3466 if (loadmodel->brush.numsubmodels)
3467 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
3469 if (loadmodel->isworldmodel)
3471 // clear out any stale submodels or worldmodels lying around
3472 // if we did this clear before now, an error might abort loading and
3473 // leave things in a bad state
3474 Mod_RemoveStaleWorldModels(loadmodel);
3477 // LordHavoc: to clear the fog around the original quake submodel code, I
3479 // first of all, some background info on the submodels:
3480 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
3481 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
3482 // now the weird for loop itself:
3483 // the loop functions in an odd way, on each iteration it sets up the
3484 // current 'mod' model (which despite the confusing code IS the model of
3485 // the number i), at the end of the loop it duplicates the model to become
3486 // the next submodel, and loops back to set up the new submodel.
3488 // LordHavoc: now the explanation of my sane way (which works identically):
3489 // set up the world model, then on each submodel copy from the world model
3490 // and set up the submodel with the respective model info.
3491 for (i = 0;i < mod->brush.numsubmodels;i++)
3493 // LordHavoc: this code was originally at the end of this loop, but
3494 // has been transformed to something more readable at the start here.
3499 // LordHavoc: only register submodels if it is the world
3500 // (prevents external bsp models from replacing world submodels with
3502 if (!loadmodel->isworldmodel)
3504 // duplicate the basic information
3505 sprintf(name, "*%i", i);
3506 mod = Mod_FindName(name);
3507 // copy the base model to this one
3509 // rename the clone back to its proper name
3510 strlcpy(mod->name, name, sizeof(mod->name));
3511 // textures and memory belong to the main model
3512 mod->texturepool = NULL;
3513 mod->mempool = NULL;
3516 mod->brush.submodel = i;
3518 if (loadmodel->brush.submodels)
3519 loadmodel->brush.submodels[i] = mod;
3521 bm = &mod->brushq1.submodels[i];
3523 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
3524 for (j=1 ; j<MAX_MAP_HULLS ; j++)
3526 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
3527 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
3530 mod->firstmodelsurface = bm->firstface;
3531 mod->nummodelsurfaces = bm->numfaces;
3533 // make the model surface list (used by shadowing/lighting)
3534 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
3535 for (j = 0;j < mod->nummodelsurfaces;j++)
3536 mod->surfacelist[j] = mod->firstmodelsurface + j;
3538 // this gets altered below if sky is used
3539 mod->DrawSky = NULL;
3540 mod->Draw = R_Q1BSP_Draw;
3541 mod->DrawDepth = R_Q1BSP_DrawDepth;
3542 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
3543 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
3544 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
3545 mod->DrawLight = R_Q1BSP_DrawLight;
3548 mod->brush.TraceLineOfSight = NULL;
3549 mod->brush.GetPVS = NULL;
3550 mod->brush.FatPVS = NULL;
3551 mod->brush.BoxTouchingPVS = NULL;
3552 mod->brush.BoxTouchingLeafPVS = NULL;
3553 mod->brush.BoxTouchingVisibleLeafs = NULL;
3554 mod->brush.FindBoxClusters = NULL;
3555 mod->brush.LightPoint = NULL;
3556 mod->brush.AmbientSoundLevelsForPoint = NULL;
3558 Mod_Q1BSP_BuildLightmapUpdateChains(loadmodel->mempool, mod);
3559 if (mod->nummodelsurfaces)
3561 // LordHavoc: calculate bmodel bounding box rather than trusting what it says
3562 mod->normalmins[0] = mod->normalmins[1] = mod->normalmins[2] = 1000000000.0f;
3563 mod->normalmaxs[0] = mod->normalmaxs[1] = mod->normalmaxs[2] = -1000000000.0f;
3566 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
3568 // we only need to have a drawsky function if it is used(usually only on world model)
3569 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
3570 mod->DrawSky = R_Q1BSP_DrawSky;
3571 // calculate bounding shapes
3572 for (k = 0, vec = (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex);k < surface->num_vertices;k++, vec += 3)
3574 if (mod->normalmins[0] > vec[0]) mod->normalmins[0] = vec[0];
3575 if (mod->normalmins[1] > vec[1]) mod->normalmins[1] = vec[1];
3576 if (mod->normalmins[2] > vec[2]) mod->normalmins[2] = vec[2];
3577 if (mod->normalmaxs[0] < vec[0]) mod->normalmaxs[0] = vec[0];
3578 if (mod->normalmaxs[1] < vec[1]) mod->normalmaxs[1] = vec[1];
3579 if (mod->normalmaxs[2] < vec[2]) mod->normalmaxs[2] = vec[2];
3580 dist = vec[0]*vec[0]+vec[1]*vec[1];
3581 if (modelyawradius < dist)
3582 modelyawradius = dist;
3583 dist += vec[2]*vec[2];
3584 if (modelradius < dist)
3588 modelyawradius = sqrt(modelyawradius);
3589 modelradius = sqrt(modelradius);
3590 mod->yawmins[0] = mod->yawmins[1] = - (mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius);
3591 mod->yawmins[2] = mod->normalmins[2];
3592 mod->yawmaxs[2] = mod->normalmaxs[2];
3593 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
3594 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
3595 mod->radius = modelradius;
3596 mod->radius2 = modelradius * modelradius;
3600 // LordHavoc: empty submodel(lacrima.bsp has such a glitch)
3601 Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
3603 //mod->brushq1.num_visleafs = bm->visleafs;
3606 Mod_Q1BSP_LoadMapBrushes();
3608 //Mod_Q1BSP_ProcessLightList();
3610 if (developer.integer >= 10)
3611 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);
3614 static void Mod_Q2BSP_LoadEntities(lump_t *l)
3618 static void Mod_Q2BSP_LoadPlanes(lump_t *l)
3625 in = (void *)(mod_base + l->fileofs);
3626 if (l->filelen % sizeof(*in))
3627 Host_Error("Mod_Q2BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
3628 count = l->filelen / sizeof(*in);
3629 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3632 loadmodel->num = count;
3634 for (i = 0;i < count;i++, in++, out++)
3640 static void Mod_Q2BSP_LoadVertices(lump_t *l)
3647 in = (void *)(mod_base + l->fileofs);
3648 if (l->filelen % sizeof(*in))
3649 Host_Error("Mod_Q2BSP_LoadVertices: funny lump size in %s",loadmodel->name);
3650 count = l->filelen / sizeof(*in);
3651 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3654 loadmodel->num = count;
3656 for (i = 0;i < count;i++, in++, out++)
3662 static void Mod_Q2BSP_LoadVisibility(lump_t *l)
3669 in = (void *)(mod_base + l->fileofs);
3670 if (l->filelen % sizeof(*in))
3671 Host_Error("Mod_Q2BSP_LoadVisibility: funny lump size in %s",loadmodel->name);
3672 count = l->filelen / sizeof(*in);
3673 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3676 loadmodel->num = count;
3678 for (i = 0;i < count;i++, in++, out++)
3684 static void Mod_Q2BSP_LoadNodes(lump_t *l)
3691 in = (void *)(mod_base + l->fileofs);
3692 if (l->filelen % sizeof(*in))
3693 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
3694 count = l->filelen / sizeof(*in);
3695 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3698 loadmodel->num = count;
3700 for (i = 0;i < count;i++, in++, out++)
3706 static void Mod_Q2BSP_LoadTexInfo(lump_t *l)
3713 in = (void *)(mod_base + l->fileofs);
3714 if (l->filelen % sizeof(*in))
3715 Host_Error("Mod_Q2BSP_LoadTexInfo: funny lump size in %s",loadmodel->name);
3716 count = l->filelen / sizeof(*in);
3717 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3720 loadmodel->num = count;
3722 for (i = 0;i < count;i++, in++, out++)
3728 static void Mod_Q2BSP_LoadFaces(lump_t *l)
3735 in = (void *)(mod_base + l->fileofs);
3736 if (l->filelen % sizeof(*in))
3737 Host_Error("Mod_Q2BSP_LoadFaces: funny lump size in %s",loadmodel->name);
3738 count = l->filelen / sizeof(*in);
3739 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3742 loadmodel->num = count;
3744 for (i = 0;i < count;i++, in++, out++)
3750 static void Mod_Q2BSP_LoadLighting(lump_t *l)
3757 in = (void *)(mod_base + l->fileofs);
3758 if (l->filelen % sizeof(*in))
3759 Host_Error("Mod_Q2BSP_LoadLighting: funny lump size in %s",loadmodel->name);
3760 count = l->filelen / sizeof(*in);
3761 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3764 loadmodel->num = count;
3766 for (i = 0;i < count;i++, in++, out++)
3772 static void Mod_Q2BSP_LoadLeafs(lump_t *l)
3779 in = (void *)(mod_base + l->fileofs);
3780 if (l->filelen % sizeof(*in))
3781 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
3782 count = l->filelen / sizeof(*in);
3783 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3786 loadmodel->num = count;
3788 for (i = 0;i < count;i++, in++, out++)
3794 static void Mod_Q2BSP_LoadLeafFaces(lump_t *l)
3801 in = (void *)(mod_base + l->fileofs);
3802 if (l->filelen % sizeof(*in))
3803 Host_Error("Mod_Q2BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
3804 count = l->filelen / sizeof(*in);
3805 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3808 loadmodel->num = count;
3810 for (i = 0;i < count;i++, in++, out++)
3816 static void Mod_Q2BSP_LoadLeafBrushes(lump_t *l)
3823 in = (void *)(mod_base + l->fileofs);
3824 if (l->filelen % sizeof(*in))
3825 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
3826 count = l->filelen / sizeof(*in);
3827 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3830 loadmodel->num = count;
3832 for (i = 0;i < count;i++, in++, out++)
3838 static void Mod_Q2BSP_LoadEdges(lump_t *l)
3845 in = (void *)(mod_base + l->fileofs);
3846 if (l->filelen % sizeof(*in))
3847 Host_Error("Mod_Q2BSP_LoadEdges: funny lump size in %s",loadmodel->name);
3848 count = l->filelen / sizeof(*in);
3849 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3852 loadmodel->num = count;
3854 for (i = 0;i < count;i++, in++, out++)
3860 static void Mod_Q2BSP_LoadSurfEdges(lump_t *l)
3867 in = (void *)(mod_base + l->fileofs);
3868 if (l->filelen % sizeof(*in))
3869 Host_Error("Mod_Q2BSP_LoadSurfEdges: funny lump size in %s",loadmodel->name);
3870 count = l->filelen / sizeof(*in);
3871 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3874 loadmodel->num = count;
3876 for (i = 0;i < count;i++, in++, out++)
3882 static void Mod_Q2BSP_LoadBrushes(lump_t *l)
3889 in = (void *)(mod_base + l->fileofs);
3890 if (l->filelen % sizeof(*in))
3891 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
3892 count = l->filelen / sizeof(*in);
3893 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3896 loadmodel->num = count;
3898 for (i = 0;i < count;i++, in++, out++)
3904 static void Mod_Q2BSP_LoadBrushSides(lump_t *l)
3911 in = (void *)(mod_base + l->fileofs);
3912 if (l->filelen % sizeof(*in))
3913 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
3914 count = l->filelen / sizeof(*in);
3915 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3918 loadmodel->num = count;
3920 for (i = 0;i < count;i++, in++, out++)
3926 static void Mod_Q2BSP_LoadAreas(lump_t *l)
3933 in = (void *)(mod_base + l->fileofs);
3934 if (l->filelen % sizeof(*in))
3935 Host_Error("Mod_Q2BSP_LoadAreas: funny lump size in %s",loadmodel->name);
3936 count = l->filelen / sizeof(*in);
3937 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3940 loadmodel->num = count;
3942 for (i = 0;i < count;i++, in++, out++)
3948 static void Mod_Q2BSP_LoadAreaPortals(lump_t *l)
3955 in = (void *)(mod_base + l->fileofs);
3956 if (l->filelen % sizeof(*in))
3957 Host_Error("Mod_Q2BSP_LoadAreaPortals: funny lump size in %s",loadmodel->name);
3958 count = l->filelen / sizeof(*in);
3959 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3962 loadmodel->num = count;
3964 for (i = 0;i < count;i++, in++, out++)
3970 static void Mod_Q2BSP_LoadModels(lump_t *l)
3977 in = (void *)(mod_base + l->fileofs);
3978 if (l->filelen % sizeof(*in))
3979 Host_Error("Mod_Q2BSP_LoadModels: funny lump size in %s",loadmodel->name);
3980 count = l->filelen / sizeof(*in);
3981 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
3984 loadmodel->num = count;
3986 for (i = 0;i < count;i++, in++, out++)
3992 void static Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
3995 q2dheader_t *header;
3997 Host_Error("Mod_Q2BSP_Load: not yet implemented");
3999 mod->type = mod_brushq2;
4001 header = (q2dheader_t *)buffer;
4003 i = LittleLong(header->version);
4004 if (i != Q2BSPVERSION)
4005 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
4006 mod->brush.ishlbsp = false;
4007 mod->brush.ismcbsp = false;
4008 if (loadmodel->isworldmodel)
4010 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
4011 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
4014 mod_base = (unsigned char *)header;
4016 // swap all the lumps
4017 for (i = 0;i < (int) sizeof(*header) / 4;i++)
4018 ((int *)header)[i] = LittleLong(((int *)header)[i]);
4020 // store which lightmap format to use
4021 mod->brushq1.lightmaprgba = r_lightmaprgba.integer;
4023 mod->brush.qw_md4sum = 0;
4024 mod->brush.qw_md4sum2 = 0;
4025 for (i = 0;i < Q2HEADER_LUMPS;i++)
4027 if (i == Q2LUMP_ENTITIES)
4029 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
4030 if (i == Q2LUMP_VISIBILITY || i == Q2LUMP_LEAFS || i == Q2LUMP_NODES)
4032 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
4035 Mod_Q2BSP_LoadEntities(&header->lumps[Q2LUMP_ENTITIES]);
4036 Mod_Q2BSP_LoadPlanes(&header->lumps[Q2LUMP_PLANES]);
4037 Mod_Q2BSP_LoadVertices(&header->lumps[Q2LUMP_VERTEXES]);
4038 Mod_Q2BSP_LoadVisibility(&header->lumps[Q2LUMP_VISIBILITY]);
4039 Mod_Q2BSP_LoadNodes(&header->lumps[Q2LUMP_NODES]);
4040 Mod_Q2BSP_LoadTexInfo(&header->lumps[Q2LUMP_TEXINFO]);
4041 Mod_Q2BSP_LoadFaces(&header->lumps[Q2LUMP_FACES]);
4042 Mod_Q2BSP_LoadLighting(&header->lumps[Q2LUMP_LIGHTING]);
4043 Mod_Q2BSP_LoadLeafs(&header->lumps[Q2LUMP_LEAFS]);
4044 Mod_Q2BSP_LoadLeafFaces(&header->lumps[Q2LUMP_LEAFFACES]);
4045 Mod_Q2BSP_LoadLeafBrushes(&header->lumps[Q2LUMP_LEAFBRUSHES]);
4046 Mod_Q2BSP_LoadEdges(&header->lumps[Q2LUMP_EDGES]);
4047 Mod_Q2BSP_LoadSurfEdges(&header->lumps[Q2LUMP_SURFEDGES]);
4048 Mod_Q2BSP_LoadBrushes(&header->lumps[Q2LUMP_BRUSHES]);
4049 Mod_Q2BSP_LoadBrushSides(&header->lumps[Q2LUMP_BRUSHSIDES]);
4050 Mod_Q2BSP_LoadAreas(&header->lumps[Q2LUMP_AREAS]);
4051 Mod_Q2BSP_LoadAreaPortals(&header->lumps[Q2LUMP_AREAPORTALS]);
4052 // LordHavoc: must go last because this makes the submodels
4053 Mod_Q2BSP_LoadModels(&header->lumps[Q2LUMP_MODELS]);
4056 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents);
4057 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents);
4059 static void Mod_Q3BSP_LoadEntities(lump_t *l)
4062 char key[128], value[MAX_INPUTLINE];
4064 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
4065 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
4066 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
4069 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen);
4070 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
4071 data = loadmodel->brush.entities;
4072 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
4073 if (data && COM_ParseTokenConsole(&data) && com_token[0] == '{')
4077 if (!COM_ParseTokenConsole(&data))
4079 if (com_token[0] == '}')
4080 break; // end of worldspawn
4081 if (com_token[0] == '_')
4082 strlcpy(key, com_token + 1, sizeof(key));
4084 strlcpy(key, com_token, sizeof(key));
4085 while (key[strlen(key)-1] == ' ') // remove trailing spaces
4086 key[strlen(key)-1] = 0;
4087 if (!COM_ParseTokenConsole(&data))
4089 strlcpy(value, com_token, sizeof(value));
4090 if (!strcmp("gridsize", key))
4092 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
4093 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
4099 // FIXME: make MAXSHADERS dynamic
4100 #define Q3SHADER_MAXSHADERS 4096
4101 #define Q3SHADER_MAXLAYERS 8
4103 typedef struct q3shaderinfo_layer_s
4109 char texturename[TEXTURE_MAXFRAMES][Q3PATHLENGTH];
4111 qboolean rgbgenvertex;
4112 qboolean alphagenvertex;
4114 q3shaderinfo_layer_t;
4116 typedef struct q3shaderinfo_s
4118 char name[Q3PATHLENGTH];
4123 qboolean vertexalpha;
4124 qboolean textureblendalpha;
4125 q3shaderinfo_layer_t *primarylayer, *backgroundlayer;
4126 q3shaderinfo_layer_t layers[Q3SHADER_MAXLAYERS];
4127 char skyboxname[Q3PATHLENGTH];
4131 int q3shaders_numshaders;
4132 q3shaderinfo_t q3shaders_shaders[Q3SHADER_MAXSHADERS];
4134 static void Mod_Q3BSP_LoadShaders(void)
4141 q3shaderinfo_t *shader;
4142 q3shaderinfo_layer_t *layer;
4144 char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
4145 search = FS_Search("scripts/*.shader", true, false);
4148 q3shaders_numshaders = 0;
4149 for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
4151 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
4154 while (COM_ParseToken(&text, false))
4156 if (q3shaders_numshaders >= Q3SHADER_MAXSHADERS)
4158 Con_Printf("Mod_Q3BSP_LoadShaders: too many shaders!\n");
4161 shader = q3shaders_shaders + q3shaders_numshaders++;
4162 memset(shader, 0, sizeof(*shader));
4163 strlcpy(shader->name, com_token, sizeof(shader->name));
4164 if (!COM_ParseToken(&text, false) || strcasecmp(com_token, "{"))
4166 Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
4169 while (COM_ParseToken(&text, false))
4171 if (!strcasecmp(com_token, "}"))
4173 if (!strcasecmp(com_token, "{"))
4175 if (shader->numlayers < Q3SHADER_MAXLAYERS)
4177 layer = shader->layers + shader->numlayers++;
4178 layer->rgbgenvertex = false;
4179 layer->alphagenvertex = false;
4180 layer->blendfunc[0] = GL_ONE;
4181 layer->blendfunc[1] = GL_ZERO;
4185 while (COM_ParseToken(&text, false))
4187 if (!strcasecmp(com_token, "}"))
4189 if (!strcasecmp(com_token, "\n"))
4194 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
4196 if (j < TEXTURE_MAXFRAMES + 4)
4198 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
4199 numparameters = j + 1;
4201 if (!COM_ParseToken(&text, true))
4204 if (developer.integer >= 100)
4206 Con_Printf("%s %i: ", shader->name, shader->numlayers - 1);
4207 for (j = 0;j < numparameters;j++)
4208 Con_Printf(" %s", parameter[j]);
4211 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
4213 if (numparameters == 2)
4215 if (!strcasecmp(parameter[1], "add"))
4217 layer->blendfunc[0] = GL_ONE;
4218 layer->blendfunc[1] = GL_ONE;
4220 else if (!strcasecmp(parameter[1], "filter"))
4222 layer->blendfunc[0] = GL_DST_COLOR;
4223 layer->blendfunc[1] = GL_ZERO;
4225 else if (!strcasecmp(parameter[1], "blend"))
4227 layer->blendfunc[0] = GL_SRC_ALPHA;
4228 layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
4231 else if (numparameters == 3)
4234 for (k = 0;k < 2;k++)
4236 if (!strcasecmp(parameter[k+1], "GL_ONE"))
4237 layer->blendfunc[k] = GL_ONE;
4238 else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
4239 layer->blendfunc[k] = GL_ZERO;
4240 else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
4241 layer->blendfunc[k] = GL_SRC_COLOR;
4242 else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
4243 layer->blendfunc[k] = GL_SRC_ALPHA;
4244 else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
4245 layer->blendfunc[k] = GL_DST_COLOR;
4246 else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
4247 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
4248 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
4249 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
4250 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
4251 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
4252 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
4253 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
4254 else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
4255 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
4257 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
4261 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
4262 layer->alphatest = true;
4263 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
4265 if (!strcasecmp(parameter[0], "clampmap"))
4266 layer->clampmap = true;
4267 layer->numframes = 1;
4268 layer->framerate = 1;
4269 strlcpy(layer->texturename[0], parameter[1], sizeof(layer->texturename));
4270 if (!strcasecmp(parameter[1], "$lightmap"))
4271 shader->lighting = true;
4273 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
4276 layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
4277 layer->framerate = atof(parameter[1]);
4278 for (i = 0;i < layer->numframes;i++)
4279 strlcpy(layer->texturename[i], parameter[i + 2], sizeof(layer->texturename));
4281 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen") && !strcasecmp(parameter[1], "vertex"))
4282 layer->rgbgenvertex = true;
4283 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen") && !strcasecmp(parameter[1], "vertex"))
4284 layer->alphagenvertex = true;
4285 // break out a level if it was }
4286 if (!strcasecmp(com_token, "}"))
4289 if (layer->rgbgenvertex)
4290 shader->lighting = true;
4291 if (layer->alphagenvertex)
4293 if (layer == shader->layers + 0)
4295 // vertex controlled transparency
4296 shader->vertexalpha = true;
4300 // multilayer terrain shader or similar
4301 shader->textureblendalpha = true;
4307 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
4309 if (j < TEXTURE_MAXFRAMES + 4)
4311 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
4312 numparameters = j + 1;
4314 if (!COM_ParseToken(&text, true))
4317 if (fileindex == 0 && !strcasecmp(com_token, "}"))
4319 if (developer.integer >= 100)
4321 Con_Printf("%s: ", shader->name);
4322 for (j = 0;j < numparameters;j++)
4323 Con_Printf(" %s", parameter[j]);
4326 if (numparameters < 1)
4328 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
4330 if (!strcasecmp(parameter[1], "alphashadow"))
4331 shader->surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
4332 else if (!strcasecmp(parameter[1], "areaportal"))
4333 shader->surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
4334 else if (!strcasecmp(parameter[1], "botclip"))
4335 shader->surfaceparms |= Q3SURFACEPARM_BOTCLIP;
4336 else if (!strcasecmp(parameter[1], "clusterportal"))
4337 shader->surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
4338 else if (!strcasecmp(parameter[1], "detail"))
4339 shader->surfaceparms |= Q3SURFACEPARM_DETAIL;
4340 else if (!strcasecmp(parameter[1], "donotenter"))
4341 shader->surfaceparms |= Q3SURFACEPARM_DONOTENTER;
4342 else if (!strcasecmp(parameter[1], "dust"))
4343 shader->surfaceparms |= Q3SURFACEPARM_DUST;
4344 else if (!strcasecmp(parameter[1], "hint"))
4345 shader->surfaceparms |= Q3SURFACEPARM_HINT;
4346 else if (!strcasecmp(parameter[1], "fog"))
4347 shader->surfaceparms |= Q3SURFACEPARM_FOG;
4348 else if (!strcasecmp(parameter[1], "lava"))
4349 shader->surfaceparms |= Q3SURFACEPARM_LAVA;
4350 else if (!strcasecmp(parameter[1], "lightfilter"))
4351 shader->surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
4352 else if (!strcasecmp(parameter[1], "lightgrid"))
4353 shader->surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
4354 else if (!strcasecmp(parameter[1], "metalsteps"))
4355 shader->surfaceparms |= Q3SURFACEPARM_METALSTEPS;
4356 else if (!strcasecmp(parameter[1], "nodamage"))
4357 shader->surfaceparms |= Q3SURFACEPARM_NODAMAGE;
4358 else if (!strcasecmp(parameter[1], "nodlight"))
4359 shader->surfaceparms |= Q3SURFACEPARM_NODLIGHT;
4360 else if (!strcasecmp(parameter[1], "nodraw"))
4361 shader->surfaceparms |= Q3SURFACEPARM_NODRAW;
4362 else if (!strcasecmp(parameter[1], "nodrop"))
4363 shader->surfaceparms |= Q3SURFACEPARM_NODROP;
4364 else if (!strcasecmp(parameter[1], "noimpact"))
4365 shader->surfaceparms |= Q3SURFACEPARM_NOIMPACT;
4366 else if (!strcasecmp(parameter[1], "nolightmap"))
4367 shader->surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
4368 else if (!strcasecmp(parameter[1], "nomarks"))
4369 shader->surfaceparms |= Q3SURFACEPARM_NOMARKS;
4370 else if (!strcasecmp(parameter[1], "nomipmaps"))
4371 shader->surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
4372 else if (!strcasecmp(parameter[1], "nonsolid"))
4373 shader->surfaceparms |= Q3SURFACEPARM_NONSOLID;
4374 else if (!strcasecmp(parameter[1], "origin"))
4375 shader->surfaceparms |= Q3SURFACEPARM_ORIGIN;
4376 else if (!strcasecmp(parameter[1], "playerclip"))
4377 shader->surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
4378 else if (!strcasecmp(parameter[1], "sky"))
4379 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4380 else if (!strcasecmp(parameter[1], "slick"))
4381 shader->surfaceparms |= Q3SURFACEPARM_SLICK;
4382 else if (!strcasecmp(parameter[1], "slime"))
4383 shader->surfaceparms |= Q3SURFACEPARM_SLIME;
4384 else if (!strcasecmp(parameter[1], "structural"))
4385 shader->surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
4386 else if (!strcasecmp(parameter[1], "trans"))
4387 shader->surfaceparms |= Q3SURFACEPARM_TRANS;
4388 else if (!strcasecmp(parameter[1], "water"))
4389 shader->surfaceparms |= Q3SURFACEPARM_WATER;
4390 else if (!strcasecmp(parameter[1], "pointlight"))
4391 shader->surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
4392 else if (!strcasecmp(parameter[1], "antiportal"))
4393 shader->surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
4395 Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
4397 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
4399 // some q3 skies don't have the sky parm set
4400 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4401 strlcpy(shader->skyboxname, parameter[1], sizeof(shader->skyboxname));
4403 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
4405 // some q3 skies don't have the sky parm set
4406 shader->surfaceparms |= Q3SURFACEPARM_SKY;
4407 if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
4408 strlcpy(shader->skyboxname, parameter[1], sizeof(shader->skyboxname));
4410 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
4412 if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
4413 shader->textureflags |= Q3TEXTUREFLAG_TWOSIDED;
4415 else if (!strcasecmp(parameter[0], "nomipmaps"))
4416 shader->surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
4417 else if (!strcasecmp(parameter[0], "nopicmip"))
4418 shader->textureflags |= Q3TEXTUREFLAG_NOPICMIP;
4419 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
4421 if (!strcasecmp(parameter[1], "autosprite") && numparameters == 2)
4422 shader->textureflags |= Q3TEXTUREFLAG_AUTOSPRITE;
4423 if (!strcasecmp(parameter[1], "autosprite2") && numparameters == 2)
4424 shader->textureflags |= Q3TEXTUREFLAG_AUTOSPRITE2;
4427 // identify if this is a blended terrain shader or similar
4428 if (shader->numlayers)
4430 shader->backgroundlayer = NULL;
4431 shader->primarylayer = shader->layers + 0;
4432 if ((shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ZERO && !shader->layers[0].alphatest)
4433 && ((shader->layers[1].blendfunc[0] == GL_SRC_ALPHA && shader->layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA && !shader->layers[0].alphatest)
4434 || (shader->layers[1].blendfunc[0] == GL_ONE && shader->layers[1].blendfunc[1] == GL_ZERO && shader->layers[1].alphatest)))
4436 // terrain blending or other effects
4437 shader->backgroundlayer = shader->layers + 0;
4438 shader->primarylayer = shader->layers + 1;
4440 // now see if the lightmap came first, and if so choose the second texture instead
4441 if (!strcasecmp(shader->primarylayer->texturename[0], "$lightmap"))
4443 shader->backgroundlayer = NULL;
4444 shader->primarylayer = shader->layers + 1;
4452 q3shaderinfo_t *Mod_Q3BSP_LookupShader(const char *name)
4455 for (i = 0;i < Q3SHADER_MAXSHADERS;i++)
4456 if (!strcasecmp(q3shaders_shaders[i].name, name))
4457 return q3shaders_shaders + i;
4461 static void Mod_Q3BSP_LoadTextures(lump_t *l)
4467 in = (q3dtexture_t *)(mod_base + l->fileofs);
4468 if (l->filelen % sizeof(*in))
4469 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
4470 count = l->filelen / sizeof(*in);
4471 out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4473 loadmodel->data_textures = out;
4474 loadmodel->num_textures = count;
4475 loadmodel->num_texturesperskin = loadmodel->num_textures;
4477 for (i = 0;i < count;i++)
4479 strlcpy (out[i].name, in[i].name, sizeof (out[i].name));
4480 out[i].surfaceflags = LittleLong(in[i].surfaceflags);
4481 out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in[i].contents));
4484 if (cls.state == ca_dedicated)
4487 // parse the Q3 shader files
4488 Mod_Q3BSP_LoadShaders();
4491 for (i = 0;i < count;i++, in++, out++)
4493 q3shaderinfo_t *shader;
4494 shader = Mod_Q3BSP_LookupShader(out->name);
4497 out->surfaceparms = shader->surfaceparms;
4498 out->textureflags = shader->textureflags;
4499 out->basematerialflags = 0;
4500 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
4502 out->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
4503 if (shader->skyboxname[0])
4505 // quake3 seems to append a _ to the skybox name, so this must do so as well
4506 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
4509 else if ((out->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
4510 out->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
4511 else if (shader->surfaceparms & Q3SURFACEPARM_LAVA)
4512 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_NOSHADOW;
4513 else if (shader->surfaceparms & Q3SURFACEPARM_SLIME)
4514 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_WATERALPHA | MATERIALFLAG_NOSHADOW;
4515 else if (shader->surfaceparms & Q3SURFACEPARM_WATER)
4516 out->basematerialflags |= MATERIALFLAG_WATER | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_WATERALPHA | MATERIALFLAG_NOSHADOW;
4518 out->basematerialflags |= MATERIALFLAG_WALL;
4519 if (shader->layers[0].alphatest)
4520 out->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
4521 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
4522 out->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
4523 if (shader->textureflags & (Q3TEXTUREFLAG_AUTOSPRITE | Q3TEXTUREFLAG_AUTOSPRITE2))
4524 out->basematerialflags |= MATERIALFLAG_NOSHADOW;
4525 out->customblendfunc[0] = GL_ONE;
4526 out->customblendfunc[1] = GL_ZERO;
4527 if (shader->numlayers > 0)
4529 out->customblendfunc[0] = shader->layers[0].blendfunc[0];
4530 out->customblendfunc[1] = shader->layers[0].blendfunc[1];
4532 Q3 shader blendfuncs actually used in the game (* = supported by DP)
4533 * additive GL_ONE GL_ONE
4534 additive weird GL_ONE GL_SRC_ALPHA
4535 additive weird 2 GL_ONE GL_ONE_MINUS_SRC_ALPHA
4536 * alpha GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
4537 alpha inverse GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
4538 brighten GL_DST_COLOR GL_ONE
4539 brighten GL_ONE GL_SRC_COLOR
4540 brighten weird GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
4541 brighten weird 2 GL_DST_COLOR GL_SRC_ALPHA
4542 * modulate GL_DST_COLOR GL_ZERO
4543 * modulate GL_ZERO GL_SRC_COLOR
4544 modulate inverse GL_ZERO GL_ONE_MINUS_SRC_COLOR
4545 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
4546 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
4547 * modulate x2 GL_DST_COLOR GL_SRC_COLOR
4548 * no blend GL_ONE GL_ZERO
4549 nothing GL_ZERO GL_ONE
4551 // if not opaque, figure out what blendfunc to use
4552 if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
4554 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
4555 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
4556 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
4557 out->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
4558 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
4559 out->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
4561 out->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
4564 if (!shader->lighting)
4565 out->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
4566 if (shader->primarylayer)
4569 out->numskinframes = shader->primarylayer->numframes;
4570 out->skinframerate = shader->primarylayer->framerate;
4571 for (j = 0;j < shader->primarylayer->numframes;j++)
4572 if (!(out->skinframes[j] = R_SkinFrame_LoadExternal(shader->primarylayer->texturename[j], ((shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | ((!r_picmipworld.integer || (shader->textureflags & Q3TEXTUREFLAG_NOPICMIP)) ? 0 : TEXF_PICMIP) | (shader->primarylayer->clampmap ? TEXF_CLAMP : 0), false)))
4573 Con_DPrintf("%s: could not load texture \"%s\" (frame %i) for shader \"%s\"\n", loadmodel->name, shader->primarylayer->texturename[j], j, out->name);
4575 if (shader->backgroundlayer)
4578 out->backgroundnumskinframes = shader->backgroundlayer->numframes;
4579 out->backgroundskinframerate = shader->backgroundlayer->framerate;
4580 for (j = 0;j < shader->backgroundlayer->numframes;j++)
4582 if (!(out->backgroundskinframes[j] = R_SkinFrame_LoadExternal(shader->backgroundlayer->texturename[j], ((shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS) ? 0 : TEXF_MIPMAP) | TEXF_ALPHA | TEXF_PRECACHE | ((!r_picmipworld.integer || (shader->textureflags & Q3TEXTUREFLAG_NOPICMIP)) ? 0 : TEXF_PICMIP) | (shader->backgroundlayer->clampmap ? TEXF_CLAMP : 0), false)))
4584 Con_DPrintf("%s: could not load texture \"%s\" (frame %i) for shader \"%s\"\n", loadmodel->name, shader->backgroundlayer->texturename[j], j, out->name);
4585 out->backgroundskinframes[j] = R_SkinFrame_LoadMissing();
4590 else if (!strcmp(out->name, "noshader"))
4591 out->surfaceparms = 0;
4595 Con_DPrintf("%s: No shader found for texture \"%s\"\n", loadmodel->name, out->name);
4596 out->surfaceparms = 0;
4597 if (out->surfaceflags & Q3SURFACEFLAG_NODRAW)
4598 out->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
4599 else if (out->surfaceflags & Q3SURFACEFLAG_SKY)
4600 out->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
4602 out->basematerialflags |= MATERIALFLAG_WALL;
4603 // these are defaults
4604 //if (!strncmp(out->name, "textures/skies/", 15))
4605 // out->surfaceparms |= Q3SURFACEPARM_SKY;
4606 //if (!strcmp(out->name, "caulk") || !strcmp(out->name, "common/caulk") || !strcmp(out->name, "textures/common/caulk")
4607 // || !strcmp(out->name, "nodraw") || !strcmp(out->name, "common/nodraw") || !strcmp(out->name, "textures/common/nodraw"))
4608 // out->surfaceparms |= Q3SURFACEPARM_NODRAW;
4609 //if (R_TextureHasAlpha(out->skinframes[0].base))
4610 // out->surfaceparms |= Q3SURFACEPARM_TRANS;
4611 out->numskinframes = 1;
4612 if (!(out->skinframes[0] = R_SkinFrame_LoadExternal(out->name, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE | (r_picmipworld.integer ? TEXF_PICMIP : 0), false)))
4613 Con_DPrintf("%s: could not load texture for missing shader \"%s\"\n", loadmodel->name, out->name);
4615 // init the animation variables
4616 out->currentframe = out;
4617 if (out->numskinframes < 1)
4618 out->numskinframes = 1;
4619 if (!out->skinframes[0])
4620 out->skinframes[0] = R_SkinFrame_LoadMissing();
4621 out->currentskinframe = out->skinframes[0];
4622 out->backgroundcurrentskinframe = out->backgroundskinframes[0];
4625 Con_DPrintf("%s: %i textures missing shaders\n", loadmodel->name, c);
4628 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
4634 in = (q3dplane_t *)(mod_base + l->fileofs);
4635 if (l->filelen % sizeof(*in))
4636 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
4637 count = l->filelen / sizeof(*in);
4638 out = (mplane_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4640 loadmodel->brush.data_planes = out;
4641 loadmodel->brush.num_planes = count;
4643 for (i = 0;i < count;i++, in++, out++)
4645 out->normal[0] = LittleFloat(in->normal[0]);
4646 out->normal[1] = LittleFloat(in->normal[1]);
4647 out->normal[2] = LittleFloat(in->normal[2]);
4648 out->dist = LittleFloat(in->dist);
4653 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
4656 q3mbrushside_t *out;
4659 in = (q3dbrushside_t *)(mod_base + l->fileofs);
4660 if (l->filelen % sizeof(*in))
4661 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4662 count = l->filelen / sizeof(*in);
4663 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4665 loadmodel->brush.data_brushsides = out;
4666 loadmodel->brush.num_brushsides = count;
4668 for (i = 0;i < count;i++, in++, out++)
4670 n = LittleLong(in->planeindex);
4671 if (n < 0 || n >= loadmodel->brush.num_planes)
4672 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
4673 out->plane = loadmodel->brush.data_planes + n;
4674 n = LittleLong(in->textureindex);
4675 if (n < 0 || n >= loadmodel->num_textures)
4676 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4677 out->texture = loadmodel->data_textures + n;
4681 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
4685 int i, j, n, c, count, maxplanes;
4686 colplanef_t *planes;
4688 in = (q3dbrush_t *)(mod_base + l->fileofs);
4689 if (l->filelen % sizeof(*in))
4690 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4691 count = l->filelen / sizeof(*in);
4692 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4694 loadmodel->brush.data_brushes = out;
4695 loadmodel->brush.num_brushes = count;
4700 for (i = 0;i < count;i++, in++, out++)
4702 n = LittleLong(in->firstbrushside);
4703 c = LittleLong(in->numbrushsides);
4704 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
4705 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", n, n + c, loadmodel->brush.num_brushsides);
4706 out->firstbrushside = loadmodel->brush.data_brushsides + n;
4707 out->numbrushsides = c;
4708 n = LittleLong(in->textureindex);
4709 if (n < 0 || n >= loadmodel->num_textures)
4710 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
4711 out->texture = loadmodel->data_textures + n;
4713 // make a list of mplane_t structs to construct a colbrush from
4714 if (maxplanes < out->numbrushsides)
4716 maxplanes = out->numbrushsides;
4719 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
4721 for (j = 0;j < out->numbrushsides;j++)
4723 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4724 planes[j].dist = out->firstbrushside[j].plane->dist;
4725 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
4726 planes[j].texture = out->firstbrushside[j].texture;
4728 // make the colbrush from the planes
4729 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents);
4735 static void Mod_Q3BSP_LoadEffects(lump_t *l)
4741 in = (q3deffect_t *)(mod_base + l->fileofs);
4742 if (l->filelen % sizeof(*in))
4743 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
4744 count = l->filelen / sizeof(*in);
4745 out = (q3deffect_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4747 loadmodel->brushq3.data_effects = out;
4748 loadmodel->brushq3.num_effects = count;
4750 for (i = 0;i < count;i++, in++, out++)
4752 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
4753 n = LittleLong(in->brushindex);
4754 if (n >= loadmodel->brush.num_brushes)
4756 Con_Printf("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes), setting to -1\n", n, loadmodel->brush.num_brushes);
4759 out->brushindex = n;
4760 out->unknown = LittleLong(in->unknown);
4764 static void Mod_Q3BSP_LoadVertices(lump_t *l)
4769 in = (q3dvertex_t *)(mod_base + l->fileofs);
4770 if (l->filelen % sizeof(*in))
4771 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
4772 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
4773 loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 3 + 2 + 2 + 4)));
4774 loadmodel->brushq3.data_normal3f = loadmodel->brushq3.data_vertex3f + count * 3;
4775 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_normal3f + count * 3;
4776 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
4777 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
4779 for (i = 0;i < count;i++, in++)
4781 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
4782 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
4783 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
4784 loadmodel->brushq3.data_normal3f[i * 3 + 0] = LittleFloat(in->normal3f[0]);
4785 loadmodel->brushq3.data_normal3f[i * 3 + 1] = LittleFloat(in->normal3f[1]);
4786 loadmodel->brushq3.data_normal3f[i * 3 + 2] = LittleFloat(in->normal3f[2]);
4787 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
4788 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
4789 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
4790 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
4791 // svector/tvector are calculated later in face loading
4792 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
4793 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
4794 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
4795 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
4799 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
4805 in = (int *)(mod_base + l->fileofs);
4806 if (l->filelen % sizeof(int[3]))
4807 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
4808 count = l->filelen / sizeof(*in);
4809 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4811 loadmodel->brushq3.num_triangles = count / 3;
4812 loadmodel->brushq3.data_element3i = out;
4814 for (i = 0;i < count;i++, in++, out++)
4816 *out = LittleLong(*in);
4817 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
4819 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
4825 static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
4828 int i, j, count, power, power2, mask, endlightmap;
4833 if (cls.state == ca_dedicated)
4835 in = (q3dlightmap_t *)(mod_base + l->fileofs);
4836 if (l->filelen % sizeof(*in))
4837 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
4838 count = l->filelen / sizeof(*in);
4839 loadmodel->brushq3.num_originallightmaps = count;
4841 // now check the surfaces to see if any of them index an odd numbered
4842 // lightmap, if so this is not a deluxemapped bsp file
4844 // also check what lightmaps are actually used, because q3map2 sometimes
4845 // (always?) makes an unused one at the end, which
4846 // q3map2 sometimes (or always?) makes a second blank lightmap for no
4847 // reason when only one lightmap is used, which can throw off the
4848 // deluxemapping detection method, so check 2-lightmap bsp's specifically
4849 // to see if the second lightmap is blank, if so it is not deluxemapped.
4850 loadmodel->brushq3.deluxemapping = !(count & 1);
4851 loadmodel->brushq3.deluxemapping_modelspace = true;
4853 if (loadmodel->brushq3.deluxemapping)
4855 int facecount = faceslump->filelen / sizeof(q3dface_t);
4856 q3dface_t *faces = (q3dface_t *)(mod_base + faceslump->fileofs);
4857 for (i = 0;i < facecount;i++)
4859 j = LittleLong(faces[i].lightmapindex);
4862 endlightmap = max(endlightmap, j + 1);
4863 if ((j & 1) || j + 1 >= count)
4865 loadmodel->brushq3.deluxemapping = false;
4871 if (endlightmap < 2)
4872 loadmodel->brushq3.deluxemapping = false;
4874 // q3map2 sometimes (or always?) makes a second blank lightmap for no
4875 // reason when only one lightmap is used, which can throw off the
4876 // deluxemapping detection method, so check 2-lightmap bsp's specifically
4877 // to see if the second lightmap is blank, if so it is not deluxemapped.
4878 if (endlightmap == 1 && count == 2)
4881 for (i = 0;i < 128*128*3;i++)
4886 // all pixels in the unused lightmap were black...
4887 loadmodel->brushq3.deluxemapping = false;
4891 Con_DPrintf("%s is %sdeluxemapped\n", loadmodel->name, loadmodel->brushq3.deluxemapping ? "" : "not ");
4893 // figure out what the most reasonable merge power is within limits
4894 loadmodel->brushq3.num_lightmapmergepower = 0;
4895 for (power = 1;power <= mod_q3bsp_lightmapmergepower.integer && (1 << power) <= gl_max_texture_size && (1 << (power * 2)) < 4 * (count >> loadmodel->brushq3.deluxemapping);power++)
4896 loadmodel->brushq3.num_lightmapmergepower = power;
4897 loadmodel->brushq3.num_lightmapmerge = 1 << loadmodel->brushq3.num_lightmapmergepower;
4899 loadmodel->brushq3.num_mergedlightmaps = ((count >> loadmodel->brushq3.deluxemapping) + (1 << (loadmodel->brushq3.num_lightmapmergepower * 2)) - 1) >> (loadmodel->brushq3.num_lightmapmergepower * 2);
4900 loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4901 if (loadmodel->brushq3.deluxemapping)
4902 loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4904 // allocate a texture pool if we need it
4905 if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
4906 loadmodel->texturepool = R_AllocTexturePool();
4908 j = 128 << loadmodel->brushq3.num_lightmapmergepower;
4909 if (loadmodel->brushq3.data_lightmaps)
4910 for (i = 0;i < loadmodel->brushq3.num_mergedlightmaps;i++)
4911 loadmodel->brushq3.data_lightmaps[i] = R_LoadTexture2D(loadmodel->texturepool, va("lightmap%04i", i), j, j, NULL, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
4913 if (loadmodel->brushq3.data_deluxemaps)
4914 for (i = 0;i < loadmodel->brushq3.num_mergedlightmaps;i++)
4915 loadmodel->brushq3.data_deluxemaps[i] = R_LoadTexture2D(loadmodel->texturepool, va("deluxemap%04i", i), j, j, NULL, TEXTYPE_RGB, TEXF_FORCELINEAR | TEXF_PRECACHE, NULL);
4917 power = loadmodel->brushq3.num_lightmapmergepower;
4919 mask = (1 << power) - 1;
4920 for (i = 0;i < count;i++)
4922 j = i >> loadmodel->brushq3.deluxemapping;
4923 if (loadmodel->brushq3.deluxemapping && (i & 1))
4924 R_UpdateTexture(loadmodel->brushq3.data_deluxemaps[j >> power2], in[i].rgb, (j & mask) * 128, ((j >> power) & mask) * 128, 128, 128);
4926 R_UpdateTexture(loadmodel->brushq3.data_lightmaps [j >> power2], in[i].rgb, (j & mask) * 128, ((j >> power) & mask) * 128, 128, 128);
4930 static void Mod_Q3BSP_LoadFaces(lump_t *l)
4932 q3dface_t *in, *oldin;
4933 msurface_t *out, *oldout;
4934 int i, oldi, j, n, count, invalidelements, patchsize[2], finalwidth, finalheight, xtess, ytess, finalvertices, finaltriangles, firstvertex, firstelement, type, oldnumtriangles, oldnumtriangles2, meshvertices, meshtriangles, numvertices, numtriangles;
4935 float lightmaptcbase[2], lightmaptcscale;
4936 //int *originalelement3i;
4937 //int *originalneighbor3i;
4938 float *originalvertex3f;
4939 //float *originalsvector3f;
4940 //float *originaltvector3f;
4941 float *originalnormal3f;
4942 float *originalcolor4f;
4943 float *originaltexcoordtexture2f;
4944 float *originaltexcoordlightmap2f;
4947 in = (q3dface_t *)(mod_base + l->fileofs);
4948 if (l->filelen % sizeof(*in))
4949 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
4950 count = l->filelen / sizeof(*in);
4951 out = (msurface_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4953 loadmodel->data_surfaces = out;
4954 loadmodel->num_surfaces = count;
4962 for (;i < count;i++, in++, out++)
4964 // check face type first
4965 type = LittleLong(in->type);
4966 if (type != Q3FACETYPE_POLYGON
4967 && type != Q3FACETYPE_PATCH
4968 && type != Q3FACETYPE_MESH
4969 && type != Q3FACETYPE_FLARE)
4971 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
4975 n = LittleLong(in->textureindex);
4976 if (n < 0 || n >= loadmodel->num_textures)
4978 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
4981 out->texture = loadmodel->data_textures + n;
4982 n = LittleLong(in->effectindex);
4983 if (n < -1 || n >= loadmodel->brushq3.num_effects)
4985 if (developer.integer >= 100)
4986 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
4992 out->effect = loadmodel->brushq3.data_effects + n;
4994 if (cls.state != ca_dedicated)
4996 out->lightmaptexture = NULL;
4997 out->deluxemaptexture = r_texture_blanknormalmap;
4998 n = LittleLong(in->lightmapindex);
5001 else if (n >= loadmodel->brushq3.num_originallightmaps)
5003 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_originallightmaps);
5008 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n >> (loadmodel->brushq3.num_lightmapmergepower * 2 + loadmodel->brushq3.deluxemapping)];
5009 if (loadmodel->brushq3.deluxemapping)
5010 out->deluxemaptexture = loadmodel->brushq3.data_deluxemaps[n >> (loadmodel->brushq3.num_lightmapmergepower * 2 + loadmodel->brushq3.deluxemapping)];
5014 firstvertex = LittleLong(in->firstvertex);
5015 numvertices = LittleLong(in->numvertices);
5016 firstelement = LittleLong(in->firstelement);
5017 numtriangles = LittleLong(in->numelements) / 3;
5018 if (numtriangles * 3 != LittleLong(in->numelements))
5020 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));
5023 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
5025 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);
5028 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
5030 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);
5035 case Q3FACETYPE_POLYGON:
5036 case Q3FACETYPE_MESH:
5037 // no processing necessary
5039 case Q3FACETYPE_PATCH:
5040 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
5041 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
5042 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))
5044 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
5047 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
5048 // convert patch to Q3FACETYPE_MESH
5049 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5050 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5051 // bound to user settings
5052 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
5053 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
5054 // bound to sanity settings
5055 xtess = bound(1, xtess, 1024);
5056 ytess = bound(1, ytess, 1024);
5057 // bound to user limit on vertices
5058 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
5065 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
5066 finalheight = ((patchsize[1] - 1) * ytess) + 1;
5067 numvertices = finalwidth * finalheight;
5068 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
5070 case Q3FACETYPE_FLARE:
5071 if (developer.integer >= 100)
5072 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
5076 out->num_vertices = numvertices;
5077 out->num_triangles = numtriangles;
5078 meshvertices += out->num_vertices;
5079 meshtriangles += out->num_triangles;
5085 Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true, false);
5088 for (;i < count && meshvertices + out->num_vertices <= loadmodel->surfmesh.num_vertices;i++, in++, out++)
5090 if (out->num_vertices < 3 || out->num_triangles < 1)
5093 type = LittleLong(in->type);
5094 firstvertex = LittleLong(in->firstvertex);
5095 firstelement = LittleLong(in->firstelement);
5096 out->num_firstvertex = meshvertices;
5097 out->num_firsttriangle = meshtriangles;
5100 case Q3FACETYPE_POLYGON:
5101 case Q3FACETYPE_MESH:
5102 // no processing necessary, except for lightmap merging
5103 for (j = 0;j < out->num_vertices;j++)
5105 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
5106 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
5107 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
5108 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 0];
5109 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 1];
5110 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 2];
5111 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
5112 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
5113 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
5114 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
5115 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
5116 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
5117 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
5118 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
5120 for (j = 0;j < out->num_triangles*3;j++)
5121 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
5123 case Q3FACETYPE_PATCH:
5124 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
5125 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
5126 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
5127 originalnormal3f = loadmodel->brushq3.data_normal3f + firstvertex * 3;
5128 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
5129 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
5130 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
5131 // convert patch to Q3FACETYPE_MESH
5132 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5133 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5134 // bound to user settings
5135 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
5136 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
5137 // bound to sanity settings
5138 xtess = bound(1, xtess, 1024);
5139 ytess = bound(1, ytess, 1024);
5140 // bound to user limit on vertices
5141 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_maxvertices.integer, 262144))
5148 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
5149 finalheight = ((patchsize[1] - 1) * ytess) + 1;
5150 finalvertices = finalwidth * finalheight;
5151 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
5152 type = Q3FACETYPE_MESH;
5153 // generate geometry
5154 // (note: normals are skipped because they get recalculated)
5155 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
5156 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalnormal3f, xtess, ytess);
5157 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
5158 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
5159 Q3PatchTesselateFloat(4, sizeof(float[4]), (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
5160 Q3PatchTriangleElements((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
5161 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);
5162 if (developer.integer >= 100)
5164 if (out->num_triangles < finaltriangles)
5165 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);
5167 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);
5169 // q3map does not put in collision brushes for curves... ugh
5170 // build the lower quality collision geometry
5171 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
5172 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
5173 // bound to user settings
5174 xtess = bound(r_subdivisions_collision_mintess.integer, xtess, r_subdivisions_collision_maxtess.integer);
5175 ytess = bound(r_subdivisions_collision_mintess.integer, ytess, r_subdivisions_collision_maxtess.integer);
5176 // bound to sanity settings
5177 xtess = bound(1, xtess, 1024);
5178 ytess = bound(1, ytess, 1024);
5179 // bound to user limit on vertices
5180 while ((xtess > 1 || ytess > 1) && (((patchsize[0] - 1) * xtess) + 1) * (((patchsize[1] - 1) * ytess) + 1) > min(r_subdivisions_collision_maxvertices.integer, 262144))
5187 finalwidth = ((patchsize[0] - 1) * xtess) + 1;
5188 finalheight = ((patchsize[1] - 1) * ytess) + 1;
5189 finalvertices = finalwidth * finalheight;
5190 finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
5192 out->data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
5193 out->data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
5194 out->num_collisionvertices = finalvertices;
5195 out->num_collisiontriangles = finaltriangles;
5196 Q3PatchTesselateFloat(3, sizeof(float[3]), out->data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
5197 Q3PatchTriangleElements(out->data_collisionelement3i, finalwidth, finalheight, 0);
5199 //Mod_SnapVertices(3, out->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), 0.25);
5200 Mod_SnapVertices(3, out->num_collisionvertices, out->data_collisionvertex3f, 1);
5202 oldnumtriangles = out->num_triangles;
5203 oldnumtriangles2 = out->num_collisiontriangles;
5204 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(out->num_collisiontriangles, out->data_collisionelement3i, out->data_collisionelement3i, out->data_collisionvertex3f);
5205 if (developer.integer >= 100)
5206 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);
5211 meshvertices += out->num_vertices;
5212 meshtriangles += out->num_triangles;
5213 for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
5214 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)
5216 if (invalidelements)
5218 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);
5219 for (j = 0;j < out->num_triangles * 3;j++)
5221 Con_Printf(" %i", (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
5222 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)
5223 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
5227 // calculate a bounding box
5228 VectorClear(out->mins);
5229 VectorClear(out->maxs);
5230 if (out->num_vertices)
5232 int lightmapindex = LittleLong(in->lightmapindex);
5233 if (lightmapindex >= 0 && cls.state != ca_dedicated)
5235 lightmapindex >>= loadmodel->brushq3.deluxemapping;
5236 lightmaptcscale = 1.0f / loadmodel->brushq3.num_lightmapmerge;
5237 lightmaptcbase[0] = ((lightmapindex ) & (loadmodel->brushq3.num_lightmapmerge - 1)) * lightmaptcscale;
5238 lightmaptcbase[1] = ((lightmapindex >> loadmodel->brushq3.num_lightmapmergepower) & (loadmodel->brushq3.num_lightmapmerge - 1)) * lightmaptcscale;
5239 // modify the lightmap texcoords to match this region of the merged lightmap
5240 for (j = 0, v = loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex;j < out->num_vertices;j++, v += 2)
5242 v[0] = v[0] * lightmaptcscale + lightmaptcbase[0];
5243 v[1] = v[1] * lightmaptcscale + lightmaptcbase[1];
5246 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->mins);
5247 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->maxs);
5248 for (j = 1, v = (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
5250 out->mins[0] = min(out->mins[0], v[0]);
5251 out->maxs[0] = max(out->maxs[0], v[0]);
5252 out->mins[1] = min(out->mins[1], v[1]);
5253 out->maxs[1] = max(out->maxs[1], v[1]);
5254 out->mins[2] = min(out->mins[2], v[2]);
5255 out->maxs[2] = max(out->maxs[2], v[2]);
5257 out->mins[0] -= 1.0f;
5258 out->mins[1] -= 1.0f;
5259 out->mins[2] -= 1.0f;
5260 out->maxs[0] += 1.0f;
5261 out->maxs[1] += 1.0f;
5262 out->maxs[2] += 1.0f;
5264 // set lightmap styles for consistency with q1bsp
5265 //out->lightmapinfo->styles[0] = 0;
5266 //out->lightmapinfo->styles[1] = 255;
5267 //out->lightmapinfo->styles[2] = 255;
5268 //out->lightmapinfo->styles[3] = 255;
5271 // for per pixel lighting
5272 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);
5274 // free the no longer needed vertex data
5275 loadmodel->brushq3.num_vertices = 0;
5276 if (loadmodel->brushq3.data_vertex3f)
5277 Mem_Free(loadmodel->brushq3.data_vertex3f);
5278 loadmodel->brushq3.data_vertex3f = NULL;
5279 loadmodel->brushq3.data_normal3f = NULL;
5280 loadmodel->brushq3.data_texcoordtexture2f = NULL;
5281 loadmodel->brushq3.data_texcoordlightmap2f = NULL;
5282 loadmodel->brushq3.data_color4f = NULL;
5283 // free the no longer needed triangle data
5284 loadmodel->brushq3.num_triangles = 0;
5285 if (loadmodel->brushq3.data_element3i)
5286 Mem_Free(loadmodel->brushq3.data_element3i);
5287 loadmodel->brushq3.data_element3i = NULL;
5290 static void Mod_Q3BSP_LoadModels(lump_t *l)
5294 int i, j, n, c, count;
5296 in = (q3dmodel_t *)(mod_base + l->fileofs);
5297 if (l->filelen % sizeof(*in))
5298 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
5299 count = l->filelen / sizeof(*in);
5300 out = (q3dmodel_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5302 loadmodel->brushq3.data_models = out;
5303 loadmodel->brushq3.num_models = count;
5305 for (i = 0;i < count;i++, in++, out++)
5307 for (j = 0;j < 3;j++)
5309 out->mins[j] = LittleFloat(in->mins[j]);
5310 out->maxs[j] = LittleFloat(in->maxs[j]);
5312 n = LittleLong(in->firstface);
5313 c = LittleLong(in->numfaces);
5314 if (n < 0 || n + c > loadmodel->num_surfaces)
5315 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)", n, n + c, loadmodel->num_surfaces);
5318 n = LittleLong(in->firstbrush);
5319 c = LittleLong(in->numbrushes);
5320 if (n < 0 || n + c > loadmodel->brush.num_brushes)
5321 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)", n, n + c, loadmodel->brush.num_brushes);
5322 out->firstbrush = n;
5323 out->numbrushes = c;
5327 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
5333 in = (int *)(mod_base + l->fileofs);
5334 if (l->filelen % sizeof(*in))
5335 Host_Error("Mod_Q3BSP_LoadLeafBrushes: 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_leafbrushes = out;
5340 loadmodel->brush.num_leafbrushes = count;
5342 for (i = 0;i < count;i++, in++, out++)
5344 n = LittleLong(*in);
5345 if (n < 0 || n >= loadmodel->brush.num_brushes)
5346 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)", n, loadmodel->brush.num_brushes);
5351 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
5357 in = (int *)(mod_base + l->fileofs);
5358 if (l->filelen % sizeof(*in))
5359 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
5360 count = l->filelen / sizeof(*in);
5361 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5363 loadmodel->brush.data_leafsurfaces = out;
5364 loadmodel->brush.num_leafsurfaces = count;
5366 for (i = 0;i < count;i++, in++, out++)
5368 n = LittleLong(*in);
5369 if (n < 0 || n >= loadmodel->num_surfaces)
5370 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)", n, loadmodel->num_surfaces);
5375 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
5379 int i, j, n, c, count;
5381 in = (q3dleaf_t *)(mod_base + l->fileofs);
5382 if (l->filelen % sizeof(*in))
5383 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
5384 count = l->filelen / sizeof(*in);
5385 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5387 loadmodel->brush.data_leafs = out;
5388 loadmodel->brush.num_leafs = count;
5390 for (i = 0;i < count;i++, in++, out++)
5394 out->clusterindex = LittleLong(in->clusterindex);
5395 out->areaindex = LittleLong(in->areaindex);
5396 for (j = 0;j < 3;j++)
5398 // yes the mins/maxs are ints
5399 out->mins[j] = LittleLong(in->mins[j]) - 1;
5400 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5402 n = LittleLong(in->firstleafface);
5403 c = LittleLong(in->numleaffaces);
5404 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
5405 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)", n, n + c, loadmodel->brush.num_leafsurfaces);
5406 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
5407 out->numleafsurfaces = c;
5408 n = LittleLong(in->firstleafbrush);
5409 c = LittleLong(in->numleafbrushes);
5410 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
5411 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)", n, n + c, loadmodel->brush.num_leafbrushes);
5412 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
5413 out->numleafbrushes = c;
5417 static void Mod_Q3BSP_LoadNodes(lump_t *l)
5423 in = (q3dnode_t *)(mod_base + l->fileofs);
5424 if (l->filelen % sizeof(*in))
5425 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
5426 count = l->filelen / sizeof(*in);
5427 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5429 loadmodel->brush.data_nodes = out;
5430 loadmodel->brush.num_nodes = count;
5432 for (i = 0;i < count;i++, in++, out++)
5435 n = LittleLong(in->planeindex);
5436 if (n < 0 || n >= loadmodel->brush.num_planes)
5437 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5438 out->plane = loadmodel->brush.data_planes + n;
5439 for (j = 0;j < 2;j++)
5441 n = LittleLong(in->childrenindex[j]);
5444 if (n >= loadmodel->brush.num_nodes)
5445 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)", n, loadmodel->brush.num_nodes);
5446 out->children[j] = loadmodel->brush.data_nodes + n;
5451 if (n >= loadmodel->brush.num_leafs)
5452 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)", n, loadmodel->brush.num_leafs);
5453 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
5456 for (j = 0;j < 3;j++)
5458 // yes the mins/maxs are ints
5459 out->mins[j] = LittleLong(in->mins[j]) - 1;
5460 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
5464 // set the parent pointers
5465 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
5468 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
5471 q3dlightgrid_t *out;
5474 in = (q3dlightgrid_t *)(mod_base + l->fileofs);
5475 if (l->filelen % sizeof(*in))
5476 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
5477 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
5478 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
5479 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
5480 loadmodel->brushq3.num_lightgrid_imins[0] = (int)ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5481 loadmodel->brushq3.num_lightgrid_imins[1] = (int)ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5482 loadmodel->brushq3.num_lightgrid_imins[2] = (int)ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5483 loadmodel->brushq3.num_lightgrid_imaxs[0] = (int)floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
5484 loadmodel->brushq3.num_lightgrid_imaxs[1] = (int)floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
5485 loadmodel->brushq3.num_lightgrid_imaxs[2] = (int)floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
5486 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
5487 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
5488 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
5489 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
5490 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]);
5491 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]);
5493 // if lump is empty there is nothing to load, we can deal with that in the LightPoint code
5496 if (l->filelen < count * (int)sizeof(*in))
5497 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]);
5498 if (l->filelen != count * (int)sizeof(*in))
5499 Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", (int)(count * sizeof(*in)), l->filelen);
5500 out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5501 loadmodel->brushq3.data_lightgrid = out;
5502 loadmodel->brushq3.num_lightgrid = count;
5503 // no swapping or validation necessary
5504 memcpy(out, in, count * (int)sizeof(*out));
5508 static void Mod_Q3BSP_LoadPVS(lump_t *l)
5513 if (l->filelen == 0)
5516 // unvised maps often have cluster indices even without pvs, so check
5517 // leafs to find real number of clusters
5518 loadmodel->brush.num_pvsclusters = 1;
5519 for (i = 0;i < loadmodel->brush.num_leafs;i++)
5520 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
5523 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
5524 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5525 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5526 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
5530 in = (q3dpvs_t *)(mod_base + l->fileofs);
5532 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
5534 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
5535 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
5536 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
5537 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
5538 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
5539 if (l->filelen < totalchains + (int)sizeof(*in))
5540 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);
5542 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
5543 memcpy(loadmodel->brush.data_pvsclusters, (unsigned char *)(in + 1), totalchains);
5546 static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
5548 int i, j, k, index[3];
5549 float transformed[3], blend1, blend2, blend, yaw, pitch, sinpitch, stylescale;
5550 q3dlightgrid_t *a, *s;
5552 // scale lighting by lightstyle[0] so that darkmode in dpmod works properly
5553 stylescale = r_refdef.lightstylevalue[0] * (1.0f / 264.0f);
5555 if (!model->brushq3.num_lightgrid)
5557 ambientcolor[0] = stylescale;
5558 ambientcolor[1] = stylescale;
5559 ambientcolor[2] = stylescale;
5563 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
5564 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
5565 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
5566 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
5567 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
5568 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
5569 index[0] = (int)floor(transformed[0]);
5570 index[1] = (int)floor(transformed[1]);
5571 index[2] = (int)floor(transformed[2]);
5572 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
5574 // now lerp the values
5575 VectorClear(diffusenormal);
5576 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
5577 for (k = 0;k < 2;k++)
5579 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
5580 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
5582 for (j = 0;j < 2;j++)
5584 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
5585 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
5587 for (i = 0;i < 2;i++)
5589 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0]))) * stylescale;
5590 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
5592 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
5593 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
5594 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
5595 pitch = s->diffusepitch * M_PI / 128;
5596 yaw = s->diffuseyaw * M_PI / 128;
5597 sinpitch = sin(pitch);
5598 diffusenormal[0] += blend * (cos(yaw) * sinpitch);
5599 diffusenormal[1] += blend * (sin(yaw) * sinpitch);
5600 diffusenormal[2] += blend * (cos(pitch));
5601 //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)));
5606 // normalize the light direction before turning
5607 VectorNormalize(diffusenormal);
5608 //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]);
5611 static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, model_t *model, mnode_t *node, const vec3_t point, int markframe)
5616 // find which leaf the point is in
5618 node = node->children[DotProduct(point, node->plane->normal) < node->plane->dist];
5619 // point trace the brushes
5620 leaf = (mleaf_t *)node;
5621 for (i = 0;i < leaf->numleafbrushes;i++)
5623 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5624 if (brush && brush->markframe != markframe && BoxesOverlap(point, point, brush->mins, brush->maxs))
5626 brush->markframe = markframe;
5627 Collision_TracePointBrushFloat(trace, point, brush);
5630 // can't do point traces on curves (they have no thickness)
5633 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)
5635 int i, startside, endside;
5636 float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
5638 msurface_t *surface;
5641 // walk the tree until we hit a leaf, recursing for any split cases
5644 // abort if this part of the bsp tree can not be hit by this trace
5645 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5647 plane = node->plane;
5648 // axial planes are much more common than non-axial, so an optimized
5649 // axial case pays off here
5650 if (plane->type < 3)
5652 dist1 = start[plane->type] - plane->dist;
5653 dist2 = end[plane->type] - plane->dist;
5657 dist1 = DotProduct(start, plane->normal) - plane->dist;
5658 dist2 = DotProduct(end, plane->normal) - plane->dist;
5660 startside = dist1 < 0;
5661 endside = dist2 < 0;
5662 if (startside == endside)
5664 // most of the time the line fragment is on one side of the plane
5665 node = node->children[startside];
5669 // line crosses node plane, split the line
5670 dist1 = PlaneDiff(linestart, plane);
5671 dist2 = PlaneDiff(lineend, plane);
5672 midfrac = dist1 / (dist1 - dist2);
5673 VectorLerp(linestart, midfrac, lineend, mid);
5674 // take the near side first
5675 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5676 // if we found an impact on the front side, don't waste time
5677 // exploring the far side
5678 if (midfrac <= trace->realfraction)
5679 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
5683 // abort if this part of the bsp tree can not be hit by this trace
5684 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5687 nodesegmentmins[0] = min(start[0], end[0]) - 1;
5688 nodesegmentmins[1] = min(start[1], end[1]) - 1;
5689 nodesegmentmins[2] = min(start[2], end[2]) - 1;
5690 nodesegmentmaxs[0] = max(start[0], end[0]) + 1;
5691 nodesegmentmaxs[1] = max(start[1], end[1]) + 1;
5692 nodesegmentmaxs[2] = max(start[2], end[2]) + 1;
5693 // line trace the brushes
5694 leaf = (mleaf_t *)node;
5695 for (i = 0;i < leaf->numleafbrushes;i++)
5697 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5698 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5700 brush->markframe = markframe;
5701 Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
5704 // can't do point traces on curves (they have no thickness)
5705 if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
5707 // line trace the curves
5708 for (i = 0;i < leaf->numleafsurfaces;i++)
5710 surface = model->data_surfaces + leaf->firstleafsurface[i];
5711 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5713 surface->collisionmarkframe = markframe;
5714 Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5720 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)
5726 msurface_t *surface;
5728 float nodesegmentmins[3], nodesegmentmaxs[3];
5729 // walk the tree until we hit a leaf, recursing for any split cases
5732 // abort if this part of the bsp tree can not be hit by this trace
5733 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5735 plane = node->plane;
5736 // axial planes are much more common than non-axial, so an optimized
5737 // axial case pays off here
5738 if (plane->type < 3)
5740 // this is an axial plane, compare bounding box directly to it and
5741 // recurse sides accordingly
5742 // recurse down node sides
5743 // use an inlined axial BoxOnPlaneSide to slightly reduce overhead
5744 //sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, plane);
5745 //sides = ((segmentmaxs[plane->type] >= plane->dist) | ((segmentmins[plane->type] < plane->dist) << 1));
5746 sides = ((segmentmaxs[plane->type] >= plane->dist) + ((segmentmins[plane->type] < plane->dist) * 2));
5750 // this is a non-axial plane, so check if the start and end boxes
5751 // are both on one side of the plane to handle 'diagonal' cases
5752 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, plane);
5756 // segment crosses plane
5757 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
5760 // if sides == 0 then the trace itself is bogus (Not A Number values),
5761 // in this case we simply pretend the trace hit nothing
5763 return; // ERROR: NAN bounding box!
5764 // take whichever side the segment box is on
5765 node = node->children[sides - 1];
5767 // abort if this part of the bsp tree can not be hit by this trace
5768 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
5770 nodesegmentmins[0] = max(segmentmins[0], node->mins[0] - 1);
5771 nodesegmentmins[1] = max(segmentmins[1], node->mins[1] - 1);
5772 nodesegmentmins[2] = max(segmentmins[2], node->mins[2] - 1);
5773 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0] + 1);
5774 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1] + 1);
5775 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2] + 1);
5777 leaf = (mleaf_t *)node;
5778 for (i = 0;i < leaf->numleafbrushes;i++)
5780 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
5781 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
5783 brush->markframe = markframe;
5784 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
5787 if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer)
5789 for (i = 0;i < leaf->numleafsurfaces;i++)
5791 surface = model->data_surfaces + leaf->firstleafsurface[i];
5792 if (surface->num_collisiontriangles && surface->collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
5794 surface->collisionmarkframe = markframe;
5795 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);
5801 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)
5804 float segmentmins[3], segmentmaxs[3];
5805 static int markframe = 0;
5806 msurface_t *surface;
5808 memset(trace, 0, sizeof(*trace));
5809 trace->fraction = 1;
5810 trace->realfraction = 1;
5811 trace->hitsupercontentsmask = hitsupercontentsmask;
5812 if (mod_q3bsp_optimizedtraceline.integer && VectorLength2(boxmins) + VectorLength2(boxmaxs) == 0)
5814 if (VectorCompare(start, end))
5817 if (model->brush.submodel)
5819 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5820 if (brush->colbrushf)
5821 Collision_TracePointBrushFloat(trace, start, brush->colbrushf);
5824 Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, ++markframe);
5829 segmentmins[0] = min(start[0], end[0]) - 1;
5830 segmentmins[1] = min(start[1], end[1]) - 1;
5831 segmentmins[2] = min(start[2], end[2]) - 1;
5832 segmentmaxs[0] = max(start[0], end[0]) + 1;
5833 segmentmaxs[1] = max(start[1], end[1]) + 1;
5834 segmentmaxs[2] = max(start[2], end[2]) + 1;
5835 if (model->brush.submodel)
5837 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5838 if (brush->colbrushf)
5839 Collision_TraceLineBrushFloat(trace, start, end, brush->colbrushf, brush->colbrushf);
5840 if (mod_q3bsp_curves_collisions.integer)
5841 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5842 if (surface->num_collisiontriangles)
5843 Collision_TraceLineTriangleMeshFloat(trace, start, end, surface->num_collisiontriangles, surface->data_collisionelement3i, surface->data_collisionvertex3f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
5846 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, end, 0, 1, start, end, ++markframe, segmentmins, segmentmaxs);
5851 // box trace, performed as brush trace
5852 colbrushf_t *thisbrush_start, *thisbrush_end;
5853 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
5854 segmentmins[0] = min(start[0], end[0]) + boxmins[0] - 1;
5855 segmentmins[1] = min(start[1], end[1]) + boxmins[1] - 1;
5856 segmentmins[2] = min(start[2], end[2]) + boxmins[2] - 1;
5857 segmentmaxs[0] = max(start[0], end[0]) + boxmaxs[0] + 1;
5858 segmentmaxs[1] = max(start[1], end[1]) + boxmaxs[1] + 1;
5859 segmentmaxs[2] = max(start[2], end[2]) + boxmaxs[2] + 1;
5860 VectorAdd(start, boxmins, boxstartmins);
5861 VectorAdd(start, boxmaxs, boxstartmaxs);
5862 VectorAdd(end, boxmins, boxendmins);
5863 VectorAdd(end, boxmaxs, boxendmaxs);
5864 thisbrush_start = Collision_BrushForBox(&identitymatrix, boxstartmins, boxstartmaxs, 0, 0, NULL);
5865 thisbrush_end = Collision_BrushForBox(&identitymatrix, boxendmins, boxendmaxs, 0, 0, NULL);
5866 if (model->brush.submodel)
5868 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
5869 if (brush->colbrushf)
5870 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush->colbrushf, brush->colbrushf);
5871 if (mod_q3bsp_curves_collisions.integer)
5872 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
5873 if (surface->num_collisiontriangles)
5874 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);
5877 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, model->brush.data_nodes, thisbrush_start, thisbrush_end, ++markframe, segmentmins, segmentmaxs);
5881 static int Mod_Q3BSP_SuperContentsFromNativeContents(model_t *model, int nativecontents)
5883 int supercontents = 0;
5884 if (nativecontents & CONTENTSQ3_SOLID)
5885 supercontents |= SUPERCONTENTS_SOLID;
5886 if (nativecontents & CONTENTSQ3_WATER)
5887 supercontents |= SUPERCONTENTS_WATER;
5888 if (nativecontents & CONTENTSQ3_SLIME)
5889 supercontents |= SUPERCONTENTS_SLIME;
5890 if (nativecontents & CONTENTSQ3_LAVA)
5891 supercontents |= SUPERCONTENTS_LAVA;
5892 if (nativecontents & CONTENTSQ3_BODY)
5893 supercontents |= SUPERCONTENTS_BODY;
5894 if (nativecontents & CONTENTSQ3_CORPSE)
5895 supercontents |= SUPERCONTENTS_CORPSE;
5896 if (nativecontents & CONTENTSQ3_NODROP)
5897 supercontents |= SUPERCONTENTS_NODROP;
5898 if (nativecontents & CONTENTSQ3_PLAYERCLIP)
5899 supercontents |= SUPERCONTENTS_PLAYERCLIP;
5900 if (nativecontents & CONTENTSQ3_MONSTERCLIP)
5901 supercontents |= SUPERCONTENTS_MONSTERCLIP;
5902 if (nativecontents & CONTENTSQ3_DONOTENTER)
5903 supercontents |= SUPERCONTENTS_DONOTENTER;
5904 return supercontents;
5907 static int Mod_Q3BSP_NativeContentsFromSuperContents(model_t *model, int supercontents)
5909 int nativecontents = 0;
5910 if (supercontents & SUPERCONTENTS_SOLID)
5911 nativecontents |= CONTENTSQ3_SOLID;
5912 if (supercontents & SUPERCONTENTS_WATER)
5913 nativecontents |= CONTENTSQ3_WATER;
5914 if (supercontents & SUPERCONTENTS_SLIME)
5915 nativecontents |= CONTENTSQ3_SLIME;
5916 if (supercontents & SUPERCONTENTS_LAVA)
5917 nativecontents |= CONTENTSQ3_LAVA;
5918 if (supercontents & SUPERCONTENTS_BODY)
5919 nativecontents |= CONTENTSQ3_BODY;
5920 if (supercontents & SUPERCONTENTS_CORPSE)
5921 nativecontents |= CONTENTSQ3_CORPSE;
5922 if (supercontents & SUPERCONTENTS_NODROP)
5923 nativecontents |= CONTENTSQ3_NODROP;
5924 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
5925 nativecontents |= CONTENTSQ3_PLAYERCLIP;
5926 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
5927 nativecontents |= CONTENTSQ3_MONSTERCLIP;
5928 if (supercontents & SUPERCONTENTS_DONOTENTER)
5929 nativecontents |= CONTENTSQ3_DONOTENTER;
5930 return nativecontents;
5933 void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
5938 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
5939 node = node->children[1];
5941 numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
5942 if (loadmodel->brush.num_leafs < numleafs)
5943 loadmodel->brush.num_leafs = numleafs;
5946 void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
5948 int i, j, numshadowmeshtriangles;
5949 q3dheader_t *header;
5950 float corner[3], yawradius, modelradius;
5951 msurface_t *surface;
5953 mod->type = mod_brushq3;
5954 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
5957 header = (q3dheader_t *)buffer;
5959 i = LittleLong(header->version);
5960 if (i != Q3BSPVERSION)
5961 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
5962 mod->brush.ishlbsp = false;
5963 mod->brush.ismcbsp = false;
5964 if (loadmodel->isworldmodel)
5966 Cvar_SetValue("halflifebsp", mod->brush.ishlbsp);
5967 Cvar_SetValue("mcbsp", mod->brush.ismcbsp);
5970 mod->soundfromcenter = true;
5971 mod->TraceBox = Mod_Q3BSP_TraceBox;
5972 mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
5973 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
5974 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
5975 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
5976 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
5977 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
5978 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
5979 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
5980 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
5981 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
5982 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
5983 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
5984 mod->Draw = R_Q1BSP_Draw;
5985 mod->DrawDepth = R_Q1BSP_DrawDepth;
5986 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
5987 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
5988 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
5989 mod->DrawLight = R_Q1BSP_DrawLight;
5991 mod_base = (unsigned char *)header;
5993 // swap all the lumps
5994 header->ident = LittleLong(header->ident);
5995 header->version = LittleLong(header->version);
5996 for (i = 0;i < Q3HEADER_LUMPS;i++)
5998 header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs);
5999 header->lumps[i].filelen = LittleLong(header->lumps[i].filelen);
6002 mod->brush.qw_md4sum = 0;
6003 mod->brush.qw_md4sum2 = 0;
6004 for (i = 0;i < Q3HEADER_LUMPS;i++)
6006 if (i == Q3LUMP_ENTITIES)
6008 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
6009 if (i == Q3LUMP_PVS || i == Q3LUMP_LEAFS || i == Q3LUMP_NODES)
6011 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
6014 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
6015 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
6016 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
6017 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
6018 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
6019 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
6020 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
6021 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
6022 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS], &header->lumps[Q3LUMP_FACES]);
6023 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
6024 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
6025 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
6026 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
6027 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
6028 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
6029 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
6030 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
6031 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
6033 // the MakePortals code works fine on the q3bsp data as well
6034 Mod_Q1BSP_MakePortals();
6036 // FIXME: shader alpha should replace r_wateralpha support in q3bsp
6037 loadmodel->brush.supportwateralpha = true;
6039 // make a single combined shadow mesh to allow optimized shadow volume creation
6040 numshadowmeshtriangles = 0;
6041 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
6043 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
6044 numshadowmeshtriangles += surface->num_triangles;
6046 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Begin(loadmodel->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
6047 for (j = 0, surface = loadmodel->data_surfaces;j < loadmodel->num_surfaces;j++, surface++)
6048 if (surface->num_triangles > 0)
6049 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));
6050 loadmodel->brush.shadowmesh = Mod_ShadowMesh_Finish(loadmodel->mempool, loadmodel->brush.shadowmesh, false, true, false);
6051 Mod_BuildTriangleNeighbors(loadmodel->brush.shadowmesh->neighbor3i, loadmodel->brush.shadowmesh->element3i, loadmodel->brush.shadowmesh->numtriangles);
6053 loadmodel->brush.num_leafs = 0;
6054 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
6056 if (loadmodel->isworldmodel)
6058 // clear out any stale submodels or worldmodels lying around
6059 // if we did this clear before now, an error might abort loading and
6060 // leave things in a bad state
6061 Mod_RemoveStaleWorldModels(loadmodel);
6065 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
6070 // LordHavoc: only register submodels if it is the world
6071 // (prevents external bsp models from replacing world submodels with
6073 if (!loadmodel->isworldmodel)
6075 // duplicate the basic information
6076 sprintf(name, "*%i", i);
6077 mod = Mod_FindName(name);
6079 strlcpy(mod->name, name, sizeof(mod->name));
6080 // textures and memory belong to the main model
6081 mod->texturepool = NULL;
6082 mod->mempool = NULL;
6083 mod->brush.TraceLineOfSight = NULL;
6084 mod->brush.GetPVS = NULL;
6085 mod->brush.FatPVS = NULL;
6086 mod->brush.BoxTouchingPVS = NULL;
6087 mod->brush.BoxTouchingLeafPVS = NULL;
6088 mod->brush.BoxTouchingVisibleLeafs = NULL;
6089 mod->brush.FindBoxClusters = NULL;
6090 mod->brush.LightPoint = NULL;
6091 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
6093 mod->brush.submodel = i;
6095 // make the model surface list (used by shadowing/lighting)
6096 mod->firstmodelsurface = mod->brushq3.data_models[i].firstface;
6097 mod->nummodelsurfaces = mod->brushq3.data_models[i].numfaces;
6098 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
6099 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
6100 mod->surfacelist = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->surfacelist));
6101 for (j = 0;j < mod->nummodelsurfaces;j++)
6102 mod->surfacelist[j] = mod->firstmodelsurface + j;
6104 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
6105 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
6106 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
6107 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
6108 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
6109 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
6110 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
6111 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
6112 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
6113 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
6114 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
6115 mod->yawmins[2] = mod->normalmins[2];
6116 mod->yawmaxs[2] = mod->normalmaxs[2];
6117 mod->radius = modelradius;
6118 mod->radius2 = modelradius * modelradius;
6120 for (j = 0;j < mod->nummodelsurfaces;j++)
6121 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->surfaceflags & Q3SURFACEFLAG_SKY)
6123 if (j < mod->nummodelsurfaces)
6124 mod->DrawSky = R_Q1BSP_DrawSky;
6126 mod->DrawSky = NULL;
6130 void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
6132 int i = LittleLong(((int *)buffer)[1]);
6133 if (i == Q3BSPVERSION)
6134 Mod_Q3BSP_Load(mod,buffer, bufferend);
6135 else if (i == Q2BSPVERSION)
6136 Mod_Q2BSP_Load(mod,buffer, bufferend);
6138 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i", i);
6141 void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend)
6143 Host_Error("Mod_MAP_Load: not yet implemented");
6146 qboolean Mod_CanSeeBox_Trace(int numsamples, float t, model_t *model, vec3_t eye, vec3_t minsX, vec3_t maxsX)
6148 // we already have done PVS culling at this point...
6149 // so we don't need to do it again.
6152 vec3_t testorigin, mins, maxs;
6154 testorigin[0] = (minsX[0] + maxsX[0]) * 0.5;
6155 testorigin[1] = (minsX[1] + maxsX[1]) * 0.5;
6156 testorigin[2] = (minsX[2] + maxsX[2]) * 0.5;
6158 if(model->brush.TraceLineOfSight(model, eye, testorigin))
6161 // expand the box a little
6162 mins[0] = (t+1) * minsX[0] - t * maxsX[0];
6163 maxs[0] = (t+1) * maxsX[0] - t * minsX[0];
6164 mins[1] = (t+1) * minsX[1] - t * maxsX[1];
6165 maxs[1] = (t+1) * maxsX[1] - t * minsX[1];
6166 mins[2] = (t+1) * minsX[2] - t * maxsX[2];
6167 maxs[2] = (t+1) * maxsX[2] - t * minsX[2];
6169 for(i = 0; i != numsamples; ++i)
6171 testorigin[0] = lhrandom(mins[0], maxs[0]);
6172 testorigin[1] = lhrandom(mins[1], maxs[1]);
6173 testorigin[2] = lhrandom(mins[2], maxs[2]);
6175 if(model->brush.TraceLineOfSight(model, eye, testorigin))