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_CLIENT | 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 mod_bsp_portalize = {CVAR_CLIENT | CVAR_SERVER, "mod_bsp_portalize", "1", "enables portal generation from BSP tree (may take several seconds per map), used by r_drawportals, r_useportalculling, r_shadow_realtime_world_compileportalculling, sv_cullentities_portal"};
31 cvar_t r_novis = {CVAR_CLIENT, "r_novis", "0", "draws whole level, see also sv_cullentities_pvs 0"};
32 cvar_t r_nosurftextures = {CVAR_CLIENT, "r_nosurftextures", "0", "pretends there was no texture lump found in the q1bsp/hlbsp loading (useful for debugging this rare case)"};
33 cvar_t r_subdivisions_tolerance = {CVAR_CLIENT, "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)"};
34 cvar_t r_subdivisions_mintess = {CVAR_CLIENT, "r_subdivisions_mintess", "0", "minimum number of subdivisions (values above 0 will smooth curves that don't need it)"};
35 cvar_t r_subdivisions_maxtess = {CVAR_CLIENT, "r_subdivisions_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
36 cvar_t r_subdivisions_maxvertices = {CVAR_CLIENT, "r_subdivisions_maxvertices", "65536", "maximum vertices allowed per subdivided curve"};
37 cvar_t r_subdivisions_collision_tolerance = {CVAR_CLIENT, "r_subdivisions_collision_tolerance", "15", "maximum error tolerance on curve subdivision for collision purposes (usually a larger error tolerance than for rendering)"};
38 cvar_t r_subdivisions_collision_mintess = {CVAR_CLIENT, "r_subdivisions_collision_mintess", "0", "minimum number of subdivisions (values above 0 will smooth curves that don't need it)"};
39 cvar_t r_subdivisions_collision_maxtess = {CVAR_CLIENT, "r_subdivisions_collision_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
40 cvar_t r_subdivisions_collision_maxvertices = {CVAR_CLIENT, "r_subdivisions_collision_maxvertices", "4225", "maximum vertices allowed per subdivided curve"};
41 cvar_t r_trippy = {CVAR_CLIENT, "r_trippy", "0", "easter egg"};
42 cvar_t r_fxaa = {CVAR_CLIENT | CVAR_SAVE, "r_fxaa", "0", "fast approximate anti aliasing"};
43 cvar_t mod_noshader_default_offsetmapping = {CVAR_CLIENT | CVAR_SAVE, "mod_noshader_default_offsetmapping", "1", "use offsetmapping by default on all surfaces that are not using q3 shader files"};
44 cvar_t mod_obj_orientation = {CVAR_CLIENT | CVAR_SERVER, "mod_obj_orientation", "1", "fix orientation of OBJ models to the usual conventions (if zero, use coordinates as is)"};
45 cvar_t mod_q2bsp_littransparentsurfaces = {CVAR_CLIENT, "mod_q2bsp_littransparentsurfaces", "0", "allows lighting on rain in 3v3gloom3 and other cases of transparent surfaces that have lightmaps that were ignored by quake2"};
46 cvar_t mod_q3bsp_curves_collisions = {CVAR_CLIENT | CVAR_SERVER, "mod_q3bsp_curves_collisions", "1", "enables collisions with curves (SLOW)"};
47 cvar_t mod_q3bsp_curves_collisions_stride = {CVAR_CLIENT | CVAR_SERVER, "mod_q3bsp_curves_collisions_stride", "16", "collisions against curves: optimize performance by doing a combined collision check for this triangle amount first (-1 avoids any box tests)"};
48 cvar_t mod_q3bsp_curves_stride = {CVAR_CLIENT | CVAR_SERVER, "mod_q3bsp_curves_stride", "16", "particle effect collisions against curves: optimize performance by doing a combined collision check for this triangle amount first (-1 avoids any box tests)"};
49 cvar_t mod_q3bsp_optimizedtraceline = {CVAR_CLIENT | CVAR_SERVER, "mod_q3bsp_optimizedtraceline", "1", "whether to use optimized traceline code for line traces (as opposed to tracebox code)"};
50 cvar_t mod_q3bsp_debugtracebrush = {CVAR_CLIENT | CVAR_SERVER, "mod_q3bsp_debugtracebrush", "0", "selects different tracebrush bsp recursion algorithms (for debugging purposes only)"};
51 cvar_t mod_q3bsp_lightmapmergepower = {CVAR_CLIENT | 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, ..."};
52 cvar_t mod_q3bsp_nolightmaps = {CVAR_CLIENT | CVAR_SAVE, "mod_q3bsp_nolightmaps", "0", "do not load lightmaps in Q3BSP maps (to save video RAM, but be warned: it looks ugly)"};
53 cvar_t mod_q3bsp_tracelineofsight_brushes = {CVAR_CLIENT | CVAR_SERVER, "mod_q3bsp_tracelineofsight_brushes", "0", "enables culling of entities behind detail brushes, curves, etc"};
54 cvar_t mod_q3bsp_sRGBlightmaps = {CVAR_CLIENT, "mod_q3bsp_sRGBlightmaps", "0", "treat lightmaps from Q3 maps as sRGB when vid_sRGB is active"};
55 cvar_t mod_q3shader_default_offsetmapping = {CVAR_CLIENT | CVAR_SAVE, "mod_q3shader_default_offsetmapping", "1", "use offsetmapping by default on all surfaces that are using q3 shader files"};
56 cvar_t mod_q3shader_default_offsetmapping_scale = {CVAR_CLIENT | CVAR_SAVE, "mod_q3shader_default_offsetmapping_scale", "1", "default scale used for offsetmapping"};
57 cvar_t mod_q3shader_default_offsetmapping_bias = {CVAR_CLIENT | CVAR_SAVE, "mod_q3shader_default_offsetmapping_bias", "0", "default bias used for offsetmapping"};
58 cvar_t mod_q3shader_default_polygonfactor = {CVAR_CLIENT, "mod_q3shader_default_polygonfactor", "0", "biases depth values of 'polygonoffset' shaders to prevent z-fighting artifacts"};
59 cvar_t mod_q3shader_default_polygonoffset = {CVAR_CLIENT, "mod_q3shader_default_polygonoffset", "-2", "biases depth values of 'polygonoffset' shaders to prevent z-fighting artifacts"};
60 cvar_t mod_q3shader_default_refractive_index = {CVAR_CLIENT, "mod_q3shader_default_refractive_index", "1.33", "angle of refraction specified as n to apply when a photon is refracted, example values are: 1.0003 = air, water = 1.333, crown glass = 1.517, flint glass = 1.655, diamond = 2.417"};
61 cvar_t mod_q3shader_force_addalpha = {CVAR_CLIENT, "mod_q3shader_force_addalpha", "0", "treat GL_ONE GL_ONE (or add) blendfunc as GL_SRC_ALPHA GL_ONE for compatibility with older DarkPlaces releases"};
62 cvar_t mod_q3shader_force_terrain_alphaflag = {CVAR_CLIENT, "mod_q3shader_force_terrain_alphaflag", "0", "for multilayered terrain shaders force TEXF_ALPHA flag on both layers"};
64 cvar_t mod_q1bsp_polygoncollisions = {CVAR_CLIENT | CVAR_SERVER, "mod_q1bsp_polygoncollisions", "0", "disables use of precomputed cliphulls and instead collides with polygons (uses Bounding Interval Hierarchy optimizations)"};
65 cvar_t mod_collision_bih = {CVAR_CLIENT | CVAR_SERVER, "mod_collision_bih", "1", "enables use of generated Bounding Interval Hierarchy tree instead of compiled bsp tree in collision code"};
66 cvar_t mod_recalculatenodeboxes = {CVAR_CLIENT | CVAR_SERVER, "mod_recalculatenodeboxes", "1", "enables use of generated node bounding boxes based on BSP tree portal reconstruction, rather than the node boxes supplied by the map compiler"};
68 static texture_t mod_q1bsp_texture_solid;
69 static texture_t mod_q1bsp_texture_sky;
70 static texture_t mod_q1bsp_texture_lava;
71 static texture_t mod_q1bsp_texture_slime;
72 static texture_t mod_q1bsp_texture_water;
74 static qboolean Mod_Q3BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end, const vec3_t acceptmins, const vec3_t acceptmaxs);
76 void Mod_BrushInit(void)
78 // Cvar_RegisterVariable(&r_subdivide_size);
79 Cvar_RegisterVariable(&mod_bsp_portalize);
80 Cvar_RegisterVariable(&r_novis);
81 Cvar_RegisterVariable(&r_nosurftextures);
82 Cvar_RegisterVariable(&r_subdivisions_tolerance);
83 Cvar_RegisterVariable(&r_subdivisions_mintess);
84 Cvar_RegisterVariable(&r_subdivisions_maxtess);
85 Cvar_RegisterVariable(&r_subdivisions_maxvertices);
86 Cvar_RegisterVariable(&r_subdivisions_collision_tolerance);
87 Cvar_RegisterVariable(&r_subdivisions_collision_mintess);
88 Cvar_RegisterVariable(&r_subdivisions_collision_maxtess);
89 Cvar_RegisterVariable(&r_subdivisions_collision_maxvertices);
90 Cvar_RegisterVariable(&r_trippy);
91 Cvar_RegisterVariable(&r_fxaa);
92 Cvar_RegisterVariable(&mod_noshader_default_offsetmapping);
93 Cvar_RegisterVariable(&mod_obj_orientation);
94 Cvar_RegisterVariable(&mod_q2bsp_littransparentsurfaces);
95 Cvar_RegisterVariable(&mod_q3bsp_curves_collisions);
96 Cvar_RegisterVariable(&mod_q3bsp_curves_collisions_stride);
97 Cvar_RegisterVariable(&mod_q3bsp_curves_stride);
98 Cvar_RegisterVariable(&mod_q3bsp_optimizedtraceline);
99 Cvar_RegisterVariable(&mod_q3bsp_debugtracebrush);
100 Cvar_RegisterVariable(&mod_q3bsp_lightmapmergepower);
101 Cvar_RegisterVariable(&mod_q3bsp_nolightmaps);
102 Cvar_RegisterVariable(&mod_q3bsp_sRGBlightmaps);
103 Cvar_RegisterVariable(&mod_q3bsp_tracelineofsight_brushes);
104 Cvar_RegisterVariable(&mod_q3shader_default_offsetmapping);
105 Cvar_RegisterVariable(&mod_q3shader_default_offsetmapping_scale);
106 Cvar_RegisterVariable(&mod_q3shader_default_offsetmapping_bias);
107 Cvar_RegisterVariable(&mod_q3shader_default_polygonfactor);
108 Cvar_RegisterVariable(&mod_q3shader_default_polygonoffset);
109 Cvar_RegisterVariable(&mod_q3shader_default_refractive_index);
110 Cvar_RegisterVariable(&mod_q3shader_force_addalpha);
111 Cvar_RegisterVariable(&mod_q3shader_force_terrain_alphaflag);
112 Cvar_RegisterVariable(&mod_q1bsp_polygoncollisions);
113 Cvar_RegisterVariable(&mod_collision_bih);
114 Cvar_RegisterVariable(&mod_recalculatenodeboxes);
116 // these games were made for older DP engines and are no longer
117 // maintained; use this hack to show their textures properly
118 if(gamemode == GAME_NEXUIZ)
119 Cvar_SetQuick(&mod_q3shader_force_addalpha, "1");
121 memset(&mod_q1bsp_texture_solid, 0, sizeof(mod_q1bsp_texture_solid));
122 strlcpy(mod_q1bsp_texture_solid.name, "solid" , sizeof(mod_q1bsp_texture_solid.name));
123 mod_q1bsp_texture_solid.surfaceflags = 0;
124 mod_q1bsp_texture_solid.supercontents = SUPERCONTENTS_SOLID;
126 mod_q1bsp_texture_sky = mod_q1bsp_texture_solid;
127 strlcpy(mod_q1bsp_texture_sky.name, "sky", sizeof(mod_q1bsp_texture_sky.name));
128 mod_q1bsp_texture_sky.surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
129 mod_q1bsp_texture_sky.supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
131 mod_q1bsp_texture_lava = mod_q1bsp_texture_solid;
132 strlcpy(mod_q1bsp_texture_lava.name, "*lava", sizeof(mod_q1bsp_texture_lava.name));
133 mod_q1bsp_texture_lava.surfaceflags = Q3SURFACEFLAG_NOMARKS;
134 mod_q1bsp_texture_lava.supercontents = SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
136 mod_q1bsp_texture_slime = mod_q1bsp_texture_solid;
137 strlcpy(mod_q1bsp_texture_slime.name, "*slime", sizeof(mod_q1bsp_texture_slime.name));
138 mod_q1bsp_texture_slime.surfaceflags = Q3SURFACEFLAG_NOMARKS;
139 mod_q1bsp_texture_slime.supercontents = SUPERCONTENTS_SLIME;
141 mod_q1bsp_texture_water = mod_q1bsp_texture_solid;
142 strlcpy(mod_q1bsp_texture_water.name, "*water", sizeof(mod_q1bsp_texture_water.name));
143 mod_q1bsp_texture_water.surfaceflags = Q3SURFACEFLAG_NOMARKS;
144 mod_q1bsp_texture_water.supercontents = SUPERCONTENTS_WATER;
147 static mleaf_t *Mod_Q1BSP_PointInLeaf(dp_model_t *model, const vec3_t p)
154 // LadyHavoc: modified to start at first clip node,
155 // in other words: first node of the (sub)model
156 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
158 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
160 return (mleaf_t *)node;
163 static void Mod_Q1BSP_AmbientSoundLevelsForPoint(dp_model_t *model, const vec3_t p, unsigned char *out, int outsize)
167 leaf = Mod_Q1BSP_PointInLeaf(model, p);
170 i = min(outsize, (int)sizeof(leaf->ambient_sound_level));
173 memcpy(out, leaf->ambient_sound_level, i);
179 memset(out, 0, outsize);
182 static int Mod_Q1BSP_FindBoxClusters(dp_model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
185 int nodestackindex = 0;
186 mnode_t *node, *nodestack[1024];
187 if (!model->brush.num_pvsclusters)
189 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
195 // node - recurse down the BSP tree
196 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
200 return -1; // ERROR: NAN bounding box!
201 // box is on one side of plane, take that path
202 node = node->children[sides-1];
206 // box crosses plane, take one path and remember the other
207 if (nodestackindex < 1024)
208 nodestack[nodestackindex++] = node->children[0];
209 node = node->children[1];
215 // leaf - add clusterindex to list
216 if (numclusters < maxclusters)
217 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
221 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
225 if (nodestackindex < 1024)
226 nodestack[nodestackindex++] = node->children[0];
227 node = node->children[1];
232 // leaf - add clusterindex to list
233 if (numclusters < maxclusters)
234 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
239 // try another path we didn't take earlier
240 if (nodestackindex == 0)
242 node = nodestack[--nodestackindex];
244 // return number of clusters found (even if more than the maxclusters)
248 static int Mod_Q1BSP_BoxTouchingPVS(dp_model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
250 int nodestackindex = 0;
251 mnode_t *node, *nodestack[1024];
252 if (!model->brush.num_pvsclusters)
254 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
260 // node - recurse down the BSP tree
261 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
265 return -1; // ERROR: NAN bounding box!
266 // box is on one side of plane, take that path
267 node = node->children[sides-1];
271 // box crosses plane, take one path and remember the other
272 if (nodestackindex < 1024)
273 nodestack[nodestackindex++] = node->children[0];
274 node = node->children[1];
280 // leaf - check cluster bit
281 int clusterindex = ((mleaf_t *)node)->clusterindex;
282 if (CHECKPVSBIT(pvs, clusterindex))
284 // it is visible, return immediately with the news
289 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
293 if (nodestackindex < 1024)
294 nodestack[nodestackindex++] = node->children[0];
295 node = node->children[1];
300 // leaf - check cluster bit
301 int clusterindex = ((mleaf_t *)node)->clusterindex;
302 if (CHECKPVSBIT(pvs, clusterindex))
304 // it is visible, return immediately with the news
310 // nothing to see here, try another path we didn't take earlier
311 if (nodestackindex == 0)
313 node = nodestack[--nodestackindex];
319 static int Mod_Q1BSP_BoxTouchingLeafPVS(dp_model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
321 int nodestackindex = 0;
322 mnode_t *node, *nodestack[1024];
323 if (!model->brush.num_leafs)
325 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
331 // node - recurse down the BSP tree
332 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
336 return -1; // ERROR: NAN bounding box!
337 // box is on one side of plane, take that path
338 node = node->children[sides-1];
342 // box crosses plane, take one path and remember the other
343 if (nodestackindex < 1024)
344 nodestack[nodestackindex++] = node->children[0];
345 node = node->children[1];
351 // leaf - check cluster bit
352 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
353 if (CHECKPVSBIT(pvs, clusterindex))
355 // it is visible, return immediately with the news
360 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
364 if (nodestackindex < 1024)
365 nodestack[nodestackindex++] = node->children[0];
366 node = node->children[1];
371 // leaf - check cluster bit
372 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
373 if (CHECKPVSBIT(pvs, clusterindex))
375 // it is visible, return immediately with the news
381 // nothing to see here, try another path we didn't take earlier
382 if (nodestackindex == 0)
384 node = nodestack[--nodestackindex];
390 static int Mod_Q1BSP_BoxTouchingVisibleLeafs(dp_model_t *model, const unsigned char *visibleleafs, const vec3_t mins, const vec3_t maxs)
392 int nodestackindex = 0;
393 mnode_t *node, *nodestack[1024];
394 if (!model->brush.num_leafs)
396 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
402 // node - recurse down the BSP tree
403 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
407 return -1; // ERROR: NAN bounding box!
408 // box is on one side of plane, take that path
409 node = node->children[sides-1];
413 // box crosses plane, take one path and remember the other
414 if (nodestackindex < 1024)
415 nodestack[nodestackindex++] = node->children[0];
416 node = node->children[1];
422 // leaf - check if it is visible
423 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
425 // it is visible, return immediately with the news
430 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
434 if (nodestackindex < 1024)
435 nodestack[nodestackindex++] = node->children[0];
436 node = node->children[1];
441 // leaf - check if it is visible
442 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
444 // it is visible, return immediately with the news
450 // nothing to see here, try another path we didn't take earlier
451 if (nodestackindex == 0)
453 node = nodestack[--nodestackindex];
459 typedef struct findnonsolidlocationinfo_s
462 vec3_t absmin, absmax;
468 findnonsolidlocationinfo_t;
470 static void Mod_Q1BSP_FindNonSolidLocation_r_Triangle(findnonsolidlocationinfo_t *info, msurface_t *surface, int k)
473 float dist, f, vert[3][3], edge[3][3], facenormal[3], edgenormal[3][3], point[3];
475 tri = (info->model->surfmesh.data_element3i + 3 * surface->num_firsttriangle) + k * 3;
476 VectorCopy((info->model->surfmesh.data_vertex3f + tri[0] * 3), vert[0]);
477 VectorCopy((info->model->surfmesh.data_vertex3f + tri[1] * 3), vert[1]);
478 VectorCopy((info->model->surfmesh.data_vertex3f + tri[2] * 3), vert[2]);
479 VectorSubtract(vert[1], vert[0], edge[0]);
480 VectorSubtract(vert[2], vert[1], edge[1]);
481 CrossProduct(edge[1], edge[0], facenormal);
482 if (facenormal[0] || facenormal[1] || facenormal[2])
484 VectorNormalize(facenormal);
485 f = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
486 if (f <= info->bestdist && f >= -info->bestdist)
488 VectorSubtract(vert[0], vert[2], edge[2]);
489 VectorNormalize(edge[0]);
490 VectorNormalize(edge[1]);
491 VectorNormalize(edge[2]);
492 CrossProduct(facenormal, edge[0], edgenormal[0]);
493 CrossProduct(facenormal, edge[1], edgenormal[1]);
494 CrossProduct(facenormal, edge[2], edgenormal[2]);
496 if (DotProduct(info->center, edgenormal[0]) < DotProduct(vert[0], edgenormal[0])
497 && DotProduct(info->center, edgenormal[1]) < DotProduct(vert[1], edgenormal[1])
498 && DotProduct(info->center, edgenormal[2]) < DotProduct(vert[2], edgenormal[2]))
500 // we got lucky, the center is within the face
501 dist = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
505 if (info->bestdist > dist)
507 info->bestdist = dist;
508 VectorScale(facenormal, (info->radius - -dist), info->nudge);
513 if (info->bestdist > dist)
515 info->bestdist = dist;
516 VectorScale(facenormal, (info->radius - dist), info->nudge);
522 // check which edge or vertex the center is nearest
523 for (i = 0;i < 3;i++)
525 f = DotProduct(info->center, edge[i]);
526 if (f >= DotProduct(vert[0], edge[i])
527 && f <= DotProduct(vert[1], edge[i]))
530 VectorMA(info->center, -f, edge[i], point);
531 dist = sqrt(DotProduct(point, point));
532 if (info->bestdist > dist)
534 info->bestdist = dist;
535 VectorScale(point, (info->radius / dist), info->nudge);
537 // skip both vertex checks
538 // (both are further away than this edge)
543 // not on edge, check first vertex of edge
544 VectorSubtract(info->center, vert[i], point);
545 dist = sqrt(DotProduct(point, point));
546 if (info->bestdist > dist)
548 info->bestdist = dist;
549 VectorScale(point, (info->radius / dist), info->nudge);
558 static void Mod_Q1BSP_FindNonSolidLocation_r_Leaf(findnonsolidlocationinfo_t *info, mleaf_t *leaf)
560 int surfacenum, k, *mark;
562 for (surfacenum = 0, mark = leaf->firstleafsurface;surfacenum < leaf->numleafsurfaces;surfacenum++, mark++)
564 surface = info->model->data_surfaces + *mark;
565 if (surface->texture->supercontents & SUPERCONTENTS_SOLID)
567 if(surface->deprecatedq3num_bboxstride > 0)
570 cnt = (surface->num_triangles + surface->deprecatedq3num_bboxstride - 1) / surface->deprecatedq3num_bboxstride;
571 for(i = 0; i < cnt; ++i)
573 if(BoxesOverlap(surface->deprecatedq3data_bbox6f + i * 6, surface->deprecatedq3data_bbox6f + i * 6 + 3, info->absmin, info->absmax))
575 for(k = 0; k < surface->deprecatedq3num_bboxstride; ++k)
577 tri = i * surface->deprecatedq3num_bboxstride + k;
578 if(tri >= surface->num_triangles)
580 Mod_Q1BSP_FindNonSolidLocation_r_Triangle(info, surface, tri);
587 for (k = 0;k < surface->num_triangles;k++)
589 Mod_Q1BSP_FindNonSolidLocation_r_Triangle(info, surface, k);
596 static void Mod_Q1BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, mnode_t *node)
600 float f = PlaneDiff(info->center, node->plane);
601 if (f >= -info->bestdist)
602 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[0]);
603 if (f <= info->bestdist)
604 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[1]);
608 if (((mleaf_t *)node)->numleafsurfaces)
609 Mod_Q1BSP_FindNonSolidLocation_r_Leaf(info, (mleaf_t *)node);
613 static void Mod_Q1BSP_FindNonSolidLocation(dp_model_t *model, const vec3_t in, vec3_t out, float radius)
616 findnonsolidlocationinfo_t info;
622 VectorCopy(in, info.center);
623 info.radius = radius;
628 VectorClear(info.nudge);
629 info.bestdist = radius;
630 VectorCopy(info.center, info.absmin);
631 VectorCopy(info.center, info.absmax);
632 info.absmin[0] -= info.radius + 1;
633 info.absmin[1] -= info.radius + 1;
634 info.absmin[2] -= info.radius + 1;
635 info.absmax[0] += info.radius + 1;
636 info.absmax[1] += info.radius + 1;
637 info.absmax[2] += info.radius + 1;
638 Mod_Q1BSP_FindNonSolidLocation_r(&info, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
639 VectorAdd(info.center, info.nudge, info.center);
641 while (info.bestdist < radius && ++i < 10);
642 VectorCopy(info.center, out);
645 int Mod_Q1BSP_SuperContentsFromNativeContents(int nativecontents)
647 switch(nativecontents)
652 return SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
654 return SUPERCONTENTS_WATER;
656 return SUPERCONTENTS_SLIME;
658 return SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
660 return SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP | SUPERCONTENTS_OPAQUE; // to match behaviour of Q3 maps, let sky count as opaque
665 int Mod_Q1BSP_NativeContentsFromSuperContents(int supercontents)
667 if (supercontents & (SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY))
668 return CONTENTS_SOLID;
669 if (supercontents & SUPERCONTENTS_SKY)
671 if (supercontents & SUPERCONTENTS_LAVA)
672 return CONTENTS_LAVA;
673 if (supercontents & SUPERCONTENTS_SLIME)
674 return CONTENTS_SLIME;
675 if (supercontents & SUPERCONTENTS_WATER)
676 return CONTENTS_WATER;
677 return CONTENTS_EMPTY;
680 typedef struct RecursiveHullCheckTraceInfo_s
682 // the hull we're tracing through
685 // the trace structure to fill in
688 // start, end, and end - start (in model space)
693 RecursiveHullCheckTraceInfo_t;
695 // 1/32 epsilon to keep floating point happy
696 #define DIST_EPSILON (0.03125)
698 #define HULLCHECKSTATE_EMPTY 0
699 #define HULLCHECKSTATE_SOLID 1
700 #define HULLCHECKSTATE_DONE 2
702 static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int num, double p1f, double p2f, double p1[3], double p2[3])
704 // status variables, these don't need to be saved on the stack when
705 // recursing... but are because this should be thread-safe
706 // (note: tracing against a bbox is not thread-safe, yet)
711 // variables that need to be stored on the stack when recursing
716 // keep looping until we hit a leaf
719 // find the point distances
720 node = t->hull->clipnodes + num;
721 plane = t->hull->planes + node->planenum;
723 // axial planes can be calculated more quickly without the DotProduct
726 t1 = p1[plane->type] - plane->dist;
727 t2 = p2[plane->type] - plane->dist;
731 t1 = DotProduct (plane->normal, p1) - plane->dist;
732 t2 = DotProduct (plane->normal, p2) - plane->dist;
735 // negative plane distances indicate children[1] (behind plane)
739 // if the line starts and ends on the same side of the plane, recurse
740 // into that child instantly
741 if (p1side == p2side)
743 #if COLLISIONPARANOID >= 3
749 // loop back and process the start child
750 num = node->children[p1side];
754 // find the midpoint where the line crosses the plane, use the
755 // original line for best accuracy
756 #if COLLISIONPARANOID >= 3
761 t1 = t->start[plane->type] - plane->dist;
762 t2 = t->end[plane->type] - plane->dist;
766 t1 = DotProduct (plane->normal, t->start) - plane->dist;
767 t2 = DotProduct (plane->normal, t->end) - plane->dist;
769 midf = t1 / (t1 - t2);
770 midf = bound(p1f, midf, p2f);
771 VectorMA(t->start, midf, t->dist, mid);
773 // we now have a mid point, essentially splitting the line into
774 // the segments in the near child and the far child, we can now
775 // recurse those in order and get their results
777 // recurse both sides, front side first
778 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[p1side], p1f, midf, p1, mid);
779 // if this side is not empty, return what it is (solid or done)
780 if (ret != HULLCHECKSTATE_EMPTY)
783 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[p2side], midf, p2f, mid, p2);
784 // if other side is not solid, return what it is (empty or done)
785 if (ret != HULLCHECKSTATE_SOLID)
788 // front is air and back is solid, this is the impact point...
790 // copy the plane information, flipping it if needed
793 t->trace->plane.dist = -plane->dist;
794 VectorNegate (plane->normal, t->trace->plane.normal);
798 t->trace->plane.dist = plane->dist;
799 VectorCopy (plane->normal, t->trace->plane.normal);
802 // calculate the return fraction which is nudged off the surface a bit
803 t1 = DotProduct(t->trace->plane.normal, t->start) - t->trace->plane.dist;
804 t2 = DotProduct(t->trace->plane.normal, t->end) - t->trace->plane.dist;
805 midf = (t1 - collision_impactnudge.value) / (t1 - t2);
806 t->trace->fraction = bound(0, midf, 1);
808 #if COLLISIONPARANOID >= 3
811 return HULLCHECKSTATE_DONE;
815 // we reached a leaf contents
818 num = Mod_Q1BSP_SuperContentsFromNativeContents(num);
819 if (!t->trace->startfound)
821 t->trace->startfound = true;
822 t->trace->startsupercontents |= num;
824 if (num & SUPERCONTENTS_LIQUIDSMASK)
825 t->trace->inwater = true;
827 t->trace->inopen = true;
828 if (num & SUPERCONTENTS_SOLID)
829 t->trace->hittexture = &mod_q1bsp_texture_solid;
830 else if (num & SUPERCONTENTS_SKY)
831 t->trace->hittexture = &mod_q1bsp_texture_sky;
832 else if (num & SUPERCONTENTS_LAVA)
833 t->trace->hittexture = &mod_q1bsp_texture_lava;
834 else if (num & SUPERCONTENTS_SLIME)
835 t->trace->hittexture = &mod_q1bsp_texture_slime;
837 t->trace->hittexture = &mod_q1bsp_texture_water;
838 t->trace->hitq3surfaceflags = t->trace->hittexture->surfaceflags;
839 t->trace->hitsupercontents = num;
840 if (num & t->trace->hitsupercontentsmask)
842 // if the first leaf is solid, set startsolid
843 if (t->trace->allsolid)
844 t->trace->startsolid = true;
845 #if COLLISIONPARANOID >= 3
848 return HULLCHECKSTATE_SOLID;
852 t->trace->allsolid = false;
853 #if COLLISIONPARANOID >= 3
856 return HULLCHECKSTATE_EMPTY;
860 //#if COLLISIONPARANOID < 2
861 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
864 mclipnode_t *nodes = t->hull->clipnodes;
865 mplane_t *planes = t->hull->planes;
867 VectorCopy(t->start, point);
870 plane = planes + nodes[num].planenum;
871 num = nodes[num].children[(plane->type < 3 ? point[plane->type] : DotProduct(plane->normal, point)) < plane->dist];
873 num = Mod_Q1BSP_SuperContentsFromNativeContents(num);
874 t->trace->startsupercontents |= num;
875 if (num & SUPERCONTENTS_LIQUIDSMASK)
876 t->trace->inwater = true;
878 t->trace->inopen = true;
879 if (num & t->trace->hitsupercontentsmask)
881 t->trace->allsolid = t->trace->startsolid = true;
882 return HULLCHECKSTATE_SOLID;
886 t->trace->allsolid = t->trace->startsolid = false;
887 return HULLCHECKSTATE_EMPTY;
892 static void Mod_Q1BSP_TracePoint(struct model_s *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
894 RecursiveHullCheckTraceInfo_t rhc;
896 memset(&rhc, 0, sizeof(rhc));
897 memset(trace, 0, sizeof(trace_t));
899 rhc.trace->fraction = 1;
900 rhc.trace->allsolid = true;
901 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
902 VectorCopy(start, rhc.start);
903 VectorCopy(start, rhc.end);
904 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
907 static void Mod_Q1BSP_TraceLineAgainstSurfaces(struct model_s *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask);
909 static void Mod_Q1BSP_TraceLine(struct model_s *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
911 RecursiveHullCheckTraceInfo_t rhc;
913 if (VectorCompare(start, end))
915 Mod_Q1BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
919 // sometimes we want to traceline against polygons so we can report the texture that was hit rather than merely a contents, but using this method breaks one of negke's maps so it must be a cvar check...
920 if (sv_gameplayfix_q1bsptracelinereportstexture.integer)
922 Mod_Q1BSP_TraceLineAgainstSurfaces(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
926 memset(&rhc, 0, sizeof(rhc));
927 memset(trace, 0, sizeof(trace_t));
929 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
930 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
931 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
932 rhc.trace->fraction = 1;
933 rhc.trace->allsolid = true;
934 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
935 VectorCopy(start, rhc.start);
936 VectorCopy(end, rhc.end);
937 VectorSubtract(rhc.end, rhc.start, rhc.dist);
938 #if COLLISIONPARANOID >= 2
939 Con_Printf("t(%f %f %f,%f %f %f)", rhc.start[0], rhc.start[1], rhc.start[2], rhc.end[0], rhc.end[1], rhc.end[2]);
940 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
945 VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
946 memset(&testtrace, 0, sizeof(trace_t));
947 rhc.trace = &testtrace;
948 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
949 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
950 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
951 rhc.trace->fraction = 1;
952 rhc.trace->allsolid = true;
953 VectorCopy(test, rhc.start);
954 VectorCopy(test, rhc.end);
955 VectorClear(rhc.dist);
956 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
957 //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
958 if (!trace->startsolid && testtrace.startsolid)
959 Con_Printf(" - ended in solid!\n");
963 if (VectorLength2(rhc.dist))
964 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
966 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
970 static void Mod_Q1BSP_TraceBox(struct model_s *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
972 // this function currently only supports same size start and end
974 RecursiveHullCheckTraceInfo_t rhc;
976 if (VectorCompare(boxmins, boxmaxs))
978 if (VectorCompare(start, end))
979 Mod_Q1BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
981 Mod_Q1BSP_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
985 memset(&rhc, 0, sizeof(rhc));
986 memset(trace, 0, sizeof(trace_t));
988 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
989 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
990 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
991 rhc.trace->fraction = 1;
992 rhc.trace->allsolid = true;
993 VectorSubtract(boxmaxs, boxmins, boxsize);
995 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
996 else if (model->brush.ishlbsp)
998 // LadyHavoc: this has to have a minor tolerance (the .1) because of
999 // minor float precision errors from the box being transformed around
1000 if (boxsize[0] < 32.1)
1002 if (boxsize[2] < 54) // pick the nearest of 36 or 72
1003 rhc.hull = &model->brushq1.hulls[3]; // 32x32x36
1005 rhc.hull = &model->brushq1.hulls[1]; // 32x32x72
1008 rhc.hull = &model->brushq1.hulls[2]; // 64x64x64
1012 // LadyHavoc: this has to have a minor tolerance (the .1) because of
1013 // minor float precision errors from the box being transformed around
1014 if (boxsize[0] < 32.1)
1015 rhc.hull = &model->brushq1.hulls[1]; // 32x32x56
1017 rhc.hull = &model->brushq1.hulls[2]; // 64x64x88
1019 VectorMAMAM(1, start, 1, boxmins, -1, rhc.hull->clip_mins, rhc.start);
1020 VectorMAMAM(1, end, 1, boxmins, -1, rhc.hull->clip_mins, rhc.end);
1021 VectorSubtract(rhc.end, rhc.start, rhc.dist);
1022 #if COLLISIONPARANOID >= 2
1023 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]);
1024 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
1029 VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
1030 memset(&testtrace, 0, sizeof(trace_t));
1031 rhc.trace = &testtrace;
1032 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
1033 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
1034 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
1035 rhc.trace->fraction = 1;
1036 rhc.trace->allsolid = true;
1037 VectorCopy(test, rhc.start);
1038 VectorCopy(test, rhc.end);
1039 VectorClear(rhc.dist);
1040 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
1041 //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
1042 if (!trace->startsolid && testtrace.startsolid)
1043 Con_Printf(" - ended in solid!\n");
1047 if (VectorLength2(rhc.dist))
1048 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
1050 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
1054 static int Mod_Q1BSP_PointSuperContents(struct model_s *model, int frame, const vec3_t point)
1056 int num = model->brushq1.hulls[0].firstclipnode;
1058 mclipnode_t *nodes = model->brushq1.hulls[0].clipnodes;
1059 mplane_t *planes = model->brushq1.hulls[0].planes;
1062 plane = planes + nodes[num].planenum;
1063 num = nodes[num].children[(plane->type < 3 ? point[plane->type] : DotProduct(plane->normal, point)) < plane->dist];
1065 return Mod_Q1BSP_SuperContentsFromNativeContents(num);
1068 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 skipsupercontentsmask, int skipmaterialflagsmask, int boxsupercontents, int boxq3surfaceflags, const texture_t *boxtexture)
1072 colplanef_t cbox_planes[6];
1074 cbox.hasaabbplanes = true;
1075 cbox.supercontents = boxsupercontents;
1078 cbox.numtriangles = 0;
1079 cbox.planes = cbox_planes;
1081 cbox.elements = NULL;
1089 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];
1090 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];
1091 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];
1092 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];
1093 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];
1094 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];
1095 cbox_planes[0].q3surfaceflags = boxq3surfaceflags;cbox_planes[0].texture = boxtexture;
1096 cbox_planes[1].q3surfaceflags = boxq3surfaceflags;cbox_planes[1].texture = boxtexture;
1097 cbox_planes[2].q3surfaceflags = boxq3surfaceflags;cbox_planes[2].texture = boxtexture;
1098 cbox_planes[3].q3surfaceflags = boxq3surfaceflags;cbox_planes[3].texture = boxtexture;
1099 cbox_planes[4].q3surfaceflags = boxq3surfaceflags;cbox_planes[4].texture = boxtexture;
1100 cbox_planes[5].q3surfaceflags = boxq3surfaceflags;cbox_planes[5].texture = boxtexture;
1101 memset(trace, 0, sizeof(trace_t));
1102 trace->hitsupercontentsmask = hitsupercontentsmask;
1103 trace->skipsupercontentsmask = skipsupercontentsmask;
1104 trace->skipmaterialflagsmask = skipmaterialflagsmask;
1105 trace->fraction = 1;
1106 Collision_TraceLineBrushFloat(trace, start, end, &cbox, &cbox);
1108 RecursiveHullCheckTraceInfo_t rhc;
1109 static hull_t box_hull;
1110 static mclipnode_t box_clipnodes[6];
1111 static mplane_t box_planes[6];
1112 // fill in a default trace
1113 memset(&rhc, 0, sizeof(rhc));
1114 memset(trace, 0, sizeof(trace_t));
1115 //To keep everything totally uniform, bounding boxes are turned into small
1116 //BSP trees instead of being compared directly.
1117 // create a temp hull from bounding box sizes
1118 box_planes[0].dist = cmaxs[0] - mins[0];
1119 box_planes[1].dist = cmins[0] - maxs[0];
1120 box_planes[2].dist = cmaxs[1] - mins[1];
1121 box_planes[3].dist = cmins[1] - maxs[1];
1122 box_planes[4].dist = cmaxs[2] - mins[2];
1123 box_planes[5].dist = cmins[2] - maxs[2];
1124 #if COLLISIONPARANOID >= 3
1125 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]);
1128 if (box_hull.clipnodes == NULL)
1132 //Set up the planes and clipnodes so that the six floats of a bounding box
1133 //can just be stored out and get a proper hull_t structure.
1135 box_hull.clipnodes = box_clipnodes;
1136 box_hull.planes = box_planes;
1137 box_hull.firstclipnode = 0;
1138 box_hull.lastclipnode = 5;
1140 for (i = 0;i < 6;i++)
1142 box_clipnodes[i].planenum = i;
1146 box_clipnodes[i].children[side] = CONTENTS_EMPTY;
1148 box_clipnodes[i].children[side^1] = i + 1;
1150 box_clipnodes[i].children[side^1] = CONTENTS_SOLID;
1152 box_planes[i].type = i>>1;
1153 box_planes[i].normal[i>>1] = 1;
1157 // trace a line through the generated clipping hull
1158 //rhc.boxsupercontents = boxsupercontents;
1159 rhc.hull = &box_hull;
1161 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
1162 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
1163 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
1164 rhc.trace->fraction = 1;
1165 rhc.trace->allsolid = true;
1166 VectorCopy(start, rhc.start);
1167 VectorCopy(end, rhc.end);
1168 VectorSubtract(rhc.end, rhc.start, rhc.dist);
1169 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
1170 //VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
1171 if (rhc.trace->startsupercontents)
1172 rhc.trace->startsupercontents = boxsupercontents;
1176 void Collision_ClipTrace_Point(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask, int boxsupercontents, int boxq3surfaceflags, const texture_t *boxtexture)
1178 memset(trace, 0, sizeof(trace_t));
1179 trace->fraction = 1;
1180 trace->hitsupercontentsmask = hitsupercontentsmask;
1181 trace->skipsupercontentsmask = skipsupercontentsmask;
1182 trace->skipmaterialflagsmask = skipmaterialflagsmask;
1183 if (BoxesOverlap(start, start, cmins, cmaxs))
1185 trace->startsupercontents |= boxsupercontents;
1186 if ((hitsupercontentsmask & boxsupercontents) && !(skipsupercontentsmask & boxsupercontents))
1188 trace->startsolid = true;
1189 trace->allsolid = true;
1194 static qboolean Mod_Q1BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end, const vec3_t acceptmins, const vec3_t acceptmaxs)
1197 Mod_Q1BSP_TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK, 0, MATERIALFLAGMASK_TRANSLUCENT);
1198 return trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, acceptmins, acceptmaxs);
1201 static int Mod_Q1BSP_LightPoint_RecursiveBSPNode(dp_model_t *model, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const mnode_t *node, float x, float y, float startz, float endz)
1205 float mid, distz = endz - startz;
1209 switch (node->plane->type)
1212 node = node->children[x < node->plane->dist];
1213 continue; // loop back and process the new node
1215 node = node->children[y < node->plane->dist];
1216 continue; // loop back and process the new node
1218 side = startz < node->plane->dist;
1219 if ((endz < node->plane->dist) == side)
1221 node = node->children[side];
1222 continue; // loop back and process the new node
1224 // found an intersection
1225 mid = node->plane->dist;
1228 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
1229 front += startz * node->plane->normal[2];
1230 back += endz * node->plane->normal[2];
1231 side = front < node->plane->dist;
1232 if ((back < node->plane->dist) == side)
1234 node = node->children[side];
1235 continue; // loop back and process the new node
1237 // found an intersection
1238 mid = startz + distz * (front - node->plane->dist) / (front - back);
1242 // go down front side
1243 if (node->children[side]->plane && Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
1244 return true; // hit something
1246 // check for impact on this node
1247 if (node->numsurfaces)
1250 int dsi, dti, lmwidth, lmheight;
1252 msurface_t *surface;
1253 unsigned char *lightmap;
1254 int maps, line3, size3;
1257 float scale, w, w00, w01, w10, w11;
1259 surface = model->data_surfaces + node->firstsurface;
1260 for (i = 0;i < node->numsurfaces;i++, surface++)
1262 if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->lightmapinfo || !surface->lightmapinfo->samples)
1263 continue; // no lightmaps
1265 // location we want to sample in the lightmap
1266 ds = ((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]) * 0.0625f;
1267 dt = ((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]) * 0.0625f;
1270 // thanks to jitspoe for pointing out that this int cast was
1271 // rounding toward zero, so we floor it
1272 dsi = (int)floor(ds);
1273 dti = (int)floor(dt);
1274 lmwidth = ((surface->lightmapinfo->extents[0]>>4)+1);
1275 lmheight = ((surface->lightmapinfo->extents[1]>>4)+1);
1278 // we have to tolerate a position of lmwidth-1 for some rare
1279 // cases - in which case the sampling position still gets
1280 // clamped but the color gets interpolated to that edge.
1281 if (dsi >= 0 && dsi < lmwidth && dti >= 0 && dti < lmheight)
1283 // in the rare cases where we're sampling slightly off
1284 // the polygon, clamp the sampling position (we can still
1285 // interpolate outside it, where it becomes extrapolation)
1290 if (dsi > lmwidth-2)
1292 if (dti > lmheight-2)
1295 // calculate bilinear interpolation factors
1296 // and also multiply by fixedpoint conversion factors to
1297 // compensate for lightmaps being 0-255 (as 0-2), we use
1298 // r_refdef.scene.rtlightstylevalue here which is already
1299 // 0.000-2.148 range
1300 // (if we used r_refdef.scene.lightstylevalue this
1301 // divisor would be 32768 rather than 128)
1304 w00 = (1 - dsfrac) * (1 - dtfrac) * (1.0f / 128.0f);
1305 w01 = ( dsfrac) * (1 - dtfrac) * (1.0f / 128.0f);
1306 w10 = (1 - dsfrac) * ( dtfrac) * (1.0f / 128.0f);
1307 w11 = ( dsfrac) * ( dtfrac) * (1.0f / 128.0f);
1309 // values for pointer math
1310 line3 = lmwidth * 3; // LadyHavoc: *3 for colored lighting
1311 size3 = lmwidth * lmheight * 3; // LadyHavoc: *3 for colored lighting
1313 // look up the pixel
1314 lightmap = surface->lightmapinfo->samples + dti * line3 + dsi*3; // LadyHavoc: *3 for colored lighting
1316 // bilinear filter each lightmap style, and sum them
1317 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++)
1319 scale = r_refdef.scene.rtlightstylevalue[surface->lightmapinfo->styles[maps]];
1320 w = w00 * scale;VectorMA(ambientcolor, w, lightmap , ambientcolor);
1321 w = w01 * scale;VectorMA(ambientcolor, w, lightmap + 3 , ambientcolor);
1322 w = w10 * scale;VectorMA(ambientcolor, w, lightmap + line3 , ambientcolor);
1323 w = w11 * scale;VectorMA(ambientcolor, w, lightmap + line3 + 3, ambientcolor);
1327 return true; // success
1332 // go down back side
1333 node = node->children[side ^ 1];
1335 distz = endz - startz;
1336 // loop back and process the new node
1339 // did not hit anything
1343 static void Mod_Q1BSP_LightPoint(dp_model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
1345 // pretend lighting is coming down from above (due to lack of a lightgrid to know primary lighting direction)
1346 VectorSet(diffusenormal, 0, 0, 1);
1348 if (!model->brushq1.lightdata)
1350 VectorSet(ambientcolor, 1, 1, 1);
1351 VectorSet(diffusecolor, 0, 0, 0);
1355 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);
1358 static const texture_t *Mod_Q1BSP_TraceLineAgainstSurfacesFindTextureOnNode(RecursiveHullCheckTraceInfo_t *t, const dp_model_t *model, const mnode_t *node, double mid[3])
1363 const msurface_t *surface;
1368 float edgenormal[3];
1375 surface = model->data_surfaces + node->firstsurface;
1376 for (i = 0;i < node->numsurfaces;i++, surface++)
1378 // skip surfaces whose bounding box does not include the point
1379 // if (!BoxesOverlap(mid, mid, surface->mins, surface->maxs))
1381 // skip faces with contents we don't care about
1382 if (!(t->trace->hitsupercontentsmask & surface->texture->supercontents))
1384 // ignore surfaces matching the skipsupercontentsmask (this is rare)
1385 if (t->trace->skipsupercontentsmask & surface->texture->supercontents)
1387 // skip surfaces matching the skipmaterialflagsmask (e.g. MATERIALFLAG_NOSHADOW)
1388 if (t->trace->skipmaterialflagsmask & surface->texture->currentmaterialflags)
1390 // get the surface normal - since it is flat we know any vertex normal will suffice
1391 VectorCopy(model->surfmesh.data_normal3f + 3 * surface->num_firstvertex, normal);
1393 if (DotProduct(t->dist, normal) > 0)
1395 // iterate edges and see if the point is outside one of them
1396 for (j = 0, k = surface->num_vertices - 1;j < surface->num_vertices;k = j, j++)
1398 VectorCopy(model->surfmesh.data_vertex3f + 3 * (surface->num_firstvertex + k), v0);
1399 VectorCopy(model->surfmesh.data_vertex3f + 3 * (surface->num_firstvertex + j), v1);
1400 VectorSubtract(v0, v1, edgedir);
1401 CrossProduct(edgedir, normal, edgenormal);
1402 if (DotProduct(edgenormal, p) > DotProduct(edgenormal, v0))
1405 // if the point is outside one of the edges, it is not within the surface
1406 if (j < surface->num_vertices)
1409 // we hit a surface, this is the impact point...
1410 VectorCopy(normal, t->trace->plane.normal);
1411 t->trace->plane.dist = DotProduct(normal, p);
1413 // calculate the return fraction which is nudged off the surface a bit
1414 t1 = DotProduct(t->start, t->trace->plane.normal) - t->trace->plane.dist;
1415 t2 = DotProduct(t->end, t->trace->plane.normal) - t->trace->plane.dist;
1416 midf = (t1 - collision_impactnudge.value) / (t1 - t2);
1417 t->trace->fraction = bound(0, midf, 1);
1419 t->trace->hittexture = surface->texture->currentframe;
1420 t->trace->hitq3surfaceflags = t->trace->hittexture->surfaceflags;
1421 t->trace->hitsupercontents = t->trace->hittexture->supercontents;
1422 return surface->texture->currentframe;
1427 static int Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(RecursiveHullCheckTraceInfo_t *t, const dp_model_t *model, const mnode_t *node, const double p1[3], const double p2[3])
1429 const mplane_t *plane;
1432 double midf, mid[3];
1433 const mleaf_t *leaf;
1437 plane = node->plane;
1438 if (plane->type < 3)
1440 t1 = p1[plane->type] - plane->dist;
1441 t2 = p2[plane->type] - plane->dist;
1445 t1 = DotProduct (plane->normal, p1) - plane->dist;
1446 t2 = DotProduct (plane->normal, p2) - plane->dist;
1452 node = node->children[1];
1461 node = node->children[0];
1467 // the line intersects, find intersection point
1468 // LadyHavoc: this uses the original trace for maximum accuracy
1469 if (plane->type < 3)
1471 t1 = t->start[plane->type] - plane->dist;
1472 t2 = t->end[plane->type] - plane->dist;
1476 t1 = DotProduct (plane->normal, t->start) - plane->dist;
1477 t2 = DotProduct (plane->normal, t->end) - plane->dist;
1480 midf = t1 / (t1 - t2);
1481 VectorMA(t->start, midf, t->dist, mid);
1483 // recurse both sides, front side first, return if we hit a surface
1484 if (Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(t, model, node->children[side], p1, mid) == HULLCHECKSTATE_DONE)
1485 return HULLCHECKSTATE_DONE;
1487 // test each surface on the node
1488 Mod_Q1BSP_TraceLineAgainstSurfacesFindTextureOnNode(t, model, node, mid);
1489 if (t->trace->hittexture)
1490 return HULLCHECKSTATE_DONE;
1492 // recurse back side
1493 return Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(t, model, node->children[side ^ 1], mid, p2);
1495 leaf = (const mleaf_t *)node;
1496 side = Mod_Q1BSP_SuperContentsFromNativeContents(leaf->contents);
1497 if (!t->trace->startfound)
1499 t->trace->startfound = true;
1500 t->trace->startsupercontents |= side;
1502 if (side & SUPERCONTENTS_LIQUIDSMASK)
1503 t->trace->inwater = true;
1505 t->trace->inopen = true;
1506 if (side & t->trace->hitsupercontentsmask)
1508 // if the first leaf is solid, set startsolid
1509 if (t->trace->allsolid)
1510 t->trace->startsolid = true;
1511 return HULLCHECKSTATE_SOLID;
1515 t->trace->allsolid = false;
1516 return HULLCHECKSTATE_EMPTY;
1520 static void Mod_Q1BSP_TraceLineAgainstSurfaces(struct model_s *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
1522 RecursiveHullCheckTraceInfo_t rhc;
1524 memset(&rhc, 0, sizeof(rhc));
1525 memset(trace, 0, sizeof(trace_t));
1527 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
1528 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
1529 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
1530 rhc.trace->fraction = 1;
1531 rhc.trace->allsolid = true;
1532 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
1533 VectorCopy(start, rhc.start);
1534 VectorCopy(end, rhc.end);
1535 VectorSubtract(rhc.end, rhc.start, rhc.dist);
1536 Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(&rhc, model, model->brush.data_nodes + rhc.hull->firstclipnode, rhc.start, rhc.end);
1537 VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
1540 static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char *inend, unsigned char *out, unsigned char *outend)
1543 unsigned char *outstart = out;
1544 while (out < outend)
1548 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));
1558 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));
1561 for (c = *in++;c > 0;c--)
1565 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));
1576 R_Q1BSP_LoadSplitSky
1578 A sky texture is 256*128, with the right side being a masked overlay
1581 static void R_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesperpixel)
1586 unsigned int *solidpixels = (unsigned int *)Mem_Alloc(tempmempool, w*h*sizeof(unsigned char[4]));
1587 unsigned int *alphapixels = (unsigned int *)Mem_Alloc(tempmempool, w*h*sizeof(unsigned char[4]));
1589 // allocate a texture pool if we need it
1590 if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
1591 loadmodel->texturepool = R_AllocTexturePool();
1593 if (bytesperpixel == 4)
1595 for (y = 0;y < h;y++)
1597 for (x = 0;x < w;x++)
1599 solidpixels[y*w+x] = ((unsigned *)src)[y*width+x+w];
1600 alphapixels[y*w+x] = ((unsigned *)src)[y*width+x];
1606 // make an average value for the back to avoid
1607 // a fringe on the top level
1616 for (y = 0;y < h;y++)
1618 for (x = 0;x < w;x++)
1620 p = src[x*width+y+w];
1621 r += palette_rgb[p][0];
1622 g += palette_rgb[p][1];
1623 b += palette_rgb[p][2];
1626 bgra.b[2] = r/(w*h);
1627 bgra.b[1] = g/(w*h);
1628 bgra.b[0] = b/(w*h);
1630 for (y = 0;y < h;y++)
1632 for (x = 0;x < w;x++)
1634 solidpixels[y*w+x] = palette_bgra_complete[src[y*width+x+w]];
1636 alphapixels[y*w+x] = p ? palette_bgra_complete[p] : bgra.i;
1641 loadmodel->brush.solidskyskinframe = R_SkinFrame_LoadInternalBGRA("sky_solidtexture", 0 , (unsigned char *) solidpixels, w, h, 0, 0, 0, vid.sRGB3D);
1642 loadmodel->brush.alphaskyskinframe = R_SkinFrame_LoadInternalBGRA("sky_alphatexture", TEXF_ALPHA, (unsigned char *) alphapixels, w, h, 0, 0, 0, vid.sRGB3D);
1643 Mem_Free(solidpixels);
1644 Mem_Free(alphapixels);
1647 static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
1649 int i, j, k, num, max, altmax, mtwidth, mtheight, doffset, incomplete, nummiptex = 0, firstskynoshadowtexture = 0;
1650 skinframe_t *skinframemissing;
1651 texture_t *tx, *tx2, *anims[10], *altanims[10], *currentskynoshadowtexture;
1652 texture_t backuptex;
1653 unsigned char *data, *mtdata;
1655 char mapname[MAX_QPATH], name[MAX_QPATH];
1656 unsigned char zeroopaque[4], zerotrans[4];
1659 Vector4Set(zeroopaque, 0, 0, 0, 255);
1660 Vector4Set(zerotrans, 0, 0, 0, 128);
1662 loadmodel->data_textures = NULL;
1664 // add two slots for notexture walls and notexture liquids, and duplicate
1665 // all sky textures; sky surfaces can be shadow-casting or not, the surface
1666 // loading will choose according to the contents behind the surface
1667 // (necessary to support e1m5 logo shadow which has a SKY contents brush,
1668 // while correctly treating sky textures as occluders in other situations).
1673 nummiptex = MSG_ReadLittleLong(sb);
1674 loadmodel->num_textures = nummiptex + 2;
1675 // save the position so we can go back to it
1676 watermark = sb->readcount;
1677 for (i = 0; i < nummiptex; i++)
1679 doffset = MSG_ReadLittleLong(sb);
1680 if (r_nosurftextures.integer)
1684 Con_DPrintf("%s: miptex #%i missing\n", loadmodel->name, i);
1688 MSG_InitReadBuffer(&miptexsb, sb->data + doffset, sb->cursize - doffset);
1690 // copy name, but only up to 16 characters
1691 // (the output buffer can hold more than this, but the input buffer is
1693 for (j = 0; j < 16; j++)
1694 name[j] = MSG_ReadByte(&miptexsb);
1696 // pretty up the buffer (replacing any trailing garbage with 0)
1697 for (j = (int)strlen(name); j < 16; j++)
1700 if (!strncmp(name, "sky", 3))
1704 // bump it back to where we started parsing
1705 sb->readcount = (int)watermark;
1707 firstskynoshadowtexture = loadmodel->num_textures;
1708 loadmodel->num_textures += numsky;
1712 loadmodel->num_textures = 2;
1713 firstskynoshadowtexture = loadmodel->num_textures;
1715 loadmodel->num_texturesperskin = loadmodel->num_textures;
1717 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
1719 // we'll be writing to these in parallel for sky textures
1720 currentskynoshadowtexture = loadmodel->data_textures + firstskynoshadowtexture;
1722 // fill out all slots with notexture
1723 skinframemissing = R_SkinFrame_LoadMissing();
1724 for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
1726 strlcpy(tx->name, "NO TEXTURE FOUND", sizeof(tx->name));
1729 tx->basealpha = 1.0f;
1730 tx->materialshaderpass = tx->shaderpasses[0] = Mod_CreateShaderPass(loadmodel->mempool, skinframemissing);
1731 tx->materialshaderpass->skinframes[0] = skinframemissing;
1732 tx->currentskinframe = skinframemissing;
1733 tx->basematerialflags = MATERIALFLAG_WALL;
1734 if (i == loadmodel->num_textures - 1)
1736 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1737 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1738 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1742 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1743 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1745 tx->currentframe = tx;
1747 // clear water settings
1750 tx->refractive_index = mod_q3shader_default_refractive_index.value;
1751 tx->refractfactor = 1;
1752 Vector4Set(tx->refractcolor4f, 1, 1, 1, 1);
1753 tx->reflectfactor = 1;
1754 Vector4Set(tx->reflectcolor4f, 1, 1, 1, 1);
1755 tx->r_water_wateralpha = 1;
1756 tx->offsetmapping = OFFSETMAPPING_DEFAULT;
1757 tx->offsetscale = 1;
1759 tx->specularscalemod = 1;
1760 tx->specularpowermod = 1;
1761 tx->transparentsort = TRANSPARENTSORT_DISTANCE;
1762 // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
1763 // JUST GREP FOR "specularscalemod = 1".
1768 Con_Printf("%s: no miptex lump to load textures from\n", loadmodel->name);
1772 s = loadmodel->name;
1773 if (!strncasecmp(s, "maps/", 5))
1775 FS_StripExtension(s, mapname, sizeof(mapname));
1777 // LadyHavoc: mostly rewritten map texture loader
1778 for (i = 0;i < nummiptex;i++)
1780 doffset = MSG_ReadLittleLong(sb);
1781 if (r_nosurftextures.integer)
1785 Con_DPrintf("%s: miptex #%i missing\n", loadmodel->name, i);
1789 MSG_InitReadBuffer(&miptexsb, sb->data + doffset, sb->cursize - doffset);
1791 // copy name, but only up to 16 characters
1792 // (the output buffer can hold more than this, but the input buffer is
1794 for (j = 0;j < 16;j++)
1795 name[j] = MSG_ReadByte(&miptexsb);
1797 // pretty up the buffer (replacing any trailing garbage with 0)
1798 for (j = (int)strlen(name);j < 16;j++)
1803 dpsnprintf(name, sizeof(name), "unnamed%i", i);
1804 Con_DPrintf("%s: warning: renaming unnamed texture to %s\n", loadmodel->name, name);
1807 mtwidth = MSG_ReadLittleLong(&miptexsb);
1808 mtheight = MSG_ReadLittleLong(&miptexsb);
1810 j = MSG_ReadLittleLong(&miptexsb);
1814 if (j < 40 || j + mtwidth * mtheight > miptexsb.cursize)
1816 Con_Printf("%s: Texture \"%s\" is corrupt or incomplete\n", loadmodel->name, name);
1819 mtdata = miptexsb.data + j;
1822 if ((mtwidth & 15) || (mtheight & 15))
1823 Con_DPrintf("%s: warning: texture \"%s\" is not 16 aligned\n", loadmodel->name, name);
1825 // LadyHavoc: force all names to lowercase
1826 for (j = 0;name[j];j++)
1827 if (name[j] >= 'A' && name[j] <= 'Z')
1828 name[j] += 'a' - 'A';
1830 // LadyHavoc: backup the texture_t because q3 shader loading overwrites it
1831 backuptex = loadmodel->data_textures[i];
1832 if (name[0] && Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, loadmodel->data_textures + i, name, false, false, 0, MATERIALFLAG_WALL))
1834 loadmodel->data_textures[i] = backuptex;
1836 tx = loadmodel->data_textures + i;
1837 strlcpy(tx->name, name, sizeof(tx->name));
1838 tx->width = mtwidth;
1839 tx->height = mtheight;
1840 tx->basealpha = 1.0f;
1842 // start out with no animation
1843 tx->currentframe = tx;
1844 tx->currentskinframe = tx->materialshaderpass != NULL ? tx->materialshaderpass->skinframes[0] : NULL;
1846 if (tx->name[0] == '*')
1848 if (!strncmp(tx->name, "*lava", 5))
1850 tx->supercontents = mod_q1bsp_texture_lava.supercontents;
1851 tx->surfaceflags = mod_q1bsp_texture_lava.surfaceflags;
1853 else if (!strncmp(tx->name, "*slime", 6))
1855 tx->supercontents = mod_q1bsp_texture_slime.supercontents;
1856 tx->surfaceflags = mod_q1bsp_texture_slime.surfaceflags;
1860 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1861 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1864 else if (!strncmp(tx->name, "sky", 3))
1866 tx->supercontents = mod_q1bsp_texture_sky.supercontents;
1867 tx->surfaceflags = mod_q1bsp_texture_sky.surfaceflags;
1868 // for the surface traceline we need to hit this surface as a solid...
1869 tx->supercontents |= SUPERCONTENTS_SOLID;
1873 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1874 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1877 if (cls.state != ca_dedicated)
1879 // LadyHavoc: HL sky textures are entirely different than quake
1880 if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == mtheight * 2)
1882 data = loadimagepixelsbgra(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s/%s", mapname, tx->name), false, false, false, NULL);
1884 data = loadimagepixelsbgra(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s", tx->name), false, false, false, NULL);
1885 if (data && image_width == image_height * 2)
1887 R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1890 else if (mtdata != NULL)
1891 R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1895 skinframe_t *skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s/%s", mapname, tx->name), TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, false, false);
1897 skinframe = R_SkinFrame_LoadExternal(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s", tx->name), TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, false, false);
1899 tx->offsetmapping = OFFSETMAPPING_DEFAULT; // allow offsetmapping on external textures without a q3 shader
1902 // did not find external texture, load it from the bsp or wad3
1903 if (loadmodel->brush.ishlbsp)
1905 // internal texture overrides wad
1906 unsigned char *pixels, *freepixels;
1907 pixels = freepixels = NULL;
1909 pixels = W_ConvertWAD3TextureBGRA(&miptexsb);
1911 pixels = freepixels = W_GetTextureBGRA(tx->name);
1914 tx->width = image_width;
1915 tx->height = image_height;
1916 skinframe = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP, pixels, image_width, image_height, image_width, image_height, CRC_Block(pixels, image_width * image_height * 4), true);
1919 Mem_Free(freepixels);
1921 else if (mtdata) // texture included
1922 skinframe = R_SkinFrame_LoadInternalQuake(tx->name, TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP, false, r_fullbrights.integer, mtdata, tx->width, tx->height);
1924 // if skinframe is still NULL the "missing" texture has already been assigned to this
1926 tx->materialshaderpass->skinframes[0] = skinframe;
1928 // LadyHavoc: some Tenebrae textures get replaced by black
1929 if (!strncmp(tx->name, "*glassmirror", 12)) // Tenebrae
1930 tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_MIPMAP | TEXF_ALPHA, zerotrans, 1, 1, 0, 0, 0, false);
1931 else if (!strncmp(tx->name, "mirror", 6)) // Tenebrae
1932 tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, 0, zeroopaque, 1, 1, 0, 0, 0, false);
1933 tx->currentskinframe = tx->materialshaderpass->skinframes[0];
1936 tx->basematerialflags = MATERIALFLAG_WALL;
1937 if (tx->name[0] == '*')
1939 // LadyHavoc: some turbulent textures should not be affected by wateralpha
1940 if (!strncmp(tx->name, "*glassmirror", 12)) // Tenebrae
1941 tx->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_REFLECTION;
1942 else if (!strncmp(tx->name,"*lava",5)
1943 || !strncmp(tx->name,"*teleport",9)
1944 || !strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1945 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1947 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW | MATERIALFLAG_WATERALPHA | MATERIALFLAG_WATERSHADER;
1948 if (tx->currentskinframe != NULL && tx->currentskinframe->hasalpha)
1949 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1951 else if (tx->name[0] == '{') // fence textures
1953 tx->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
1955 else if (!strncmp(tx->name, "mirror", 6)) // Tenebrae
1957 // replace the texture with black
1958 tx->basematerialflags |= MATERIALFLAG_REFLECTION;
1960 else if (!strncmp(tx->name, "sky", 3))
1961 tx->basematerialflags = MATERIALFLAG_SKY;
1962 else if (!strcmp(tx->name, "caulk"))
1963 tx->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
1964 else if (tx->currentskinframe != NULL && tx->currentskinframe->hasalpha)
1965 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1966 tx->currentmaterialflags = tx->basematerialflags;
1968 // duplicate of sky with NOSHADOW
1969 if (tx->basematerialflags & MATERIALFLAG_SKY)
1971 *currentskynoshadowtexture = *tx;
1972 currentskynoshadowtexture->basematerialflags |= MATERIALFLAG_NOSHADOW;
1973 tx->skynoshadowtexture = currentskynoshadowtexture;
1974 currentskynoshadowtexture++;
1978 // sequence the animations
1979 for (i = 0;i < nummiptex;i++)
1981 tx = loadmodel->data_textures + i;
1982 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1985 if ((num < '0' || num > '9') && (num < 'a' || num > 'j'))
1987 Con_Printf("Bad animating texture %s\n", tx->name);
1990 if (tx->anim_total[0] || tx->anim_total[1])
1991 continue; // already sequenced
1993 // find the number of frames in the animation
1994 memset(anims, 0, sizeof(anims));
1995 memset(altanims, 0, sizeof(altanims));
1997 for (j = i;j < nummiptex;j++)
1999 tx2 = loadmodel->data_textures + j;
2000 if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
2004 if (num >= '0' && num <= '9')
2005 anims[num - '0'] = tx2;
2006 else if (num >= 'a' && num <= 'j')
2007 altanims[num - 'a'] = tx2;
2008 // No need to warn otherwise - we already did above.
2012 for (j = 0;j < 10;j++)
2019 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
2022 for (j = 0;j < max;j++)
2026 Con_Printf("Missing frame %i of %s\n", j, tx->name);
2030 for (j = 0;j < altmax;j++)
2034 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
2041 // If we have exactly one frame, something's wrong.
2042 if (max + altmax <= 1)
2044 Con_Printf("Texture %s is animated (leading +) but has only one frame\n", tx->name);
2049 // if there is no alternate animation, duplicate the primary
2050 // animation into the alternate
2052 for (k = 0;k < 10;k++)
2053 altanims[k] = anims[k];
2059 Con_Printf("Missing frame 0 of %s\n", tx->name);
2061 // however, we can handle this by duplicating the alternate animation into the primary
2063 for (k = 0;k < 10;k++)
2064 anims[k] = altanims[k];
2068 // link together the primary animation
2069 for (j = 0;j < max;j++)
2072 tx2->animated = 1; // q1bsp
2073 tx2->anim_total[0] = max;
2074 tx2->anim_total[1] = altmax;
2075 for (k = 0;k < 10;k++)
2077 tx2->anim_frames[0][k] = anims[k];
2078 tx2->anim_frames[1][k] = altanims[k];
2082 // if there really is an alternate anim...
2083 if (anims[0] != altanims[0])
2085 // link together the alternate animation
2086 for (j = 0;j < altmax;j++)
2089 tx2->animated = 1; // q1bsp
2090 // the primary/alternate are reversed here
2091 tx2->anim_total[0] = altmax;
2092 tx2->anim_total[1] = max;
2093 for (k = 0;k < 10;k++)
2095 tx2->anim_frames[0][k] = altanims[k];
2096 tx2->anim_frames[1][k] = anims[k];
2103 static void Mod_Q1BSP_LoadLighting(sizebuf_t *sb)
2106 unsigned char *in, *out, *data, d;
2107 char litfilename[MAX_QPATH];
2108 char dlitfilename[MAX_QPATH];
2109 fs_offset_t filesize;
2110 if (loadmodel->brush.ishlbsp) // LadyHavoc: load the colored lighting data straight
2112 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize);
2113 for (i = 0;i < sb->cursize;i++)
2114 loadmodel->brushq1.lightdata[i] = sb->data[i] >>= 1;
2116 else // LadyHavoc: bsp version 29 (normal white lighting)
2118 // LadyHavoc: hope is not lost yet, check for a .lit file to load
2119 strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
2120 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
2121 strlcpy (dlitfilename, litfilename, sizeof (dlitfilename));
2122 strlcat (litfilename, ".lit", sizeof (litfilename));
2123 strlcat (dlitfilename, ".dlit", sizeof (dlitfilename));
2124 data = (unsigned char*) FS_LoadFile(litfilename, tempmempool, false, &filesize);
2127 if (filesize == (fs_offset_t)(8 + sb->cursize * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
2129 i = LittleLong(((int *)data)[1]);
2132 if (developer_loading.integer)
2133 Con_Printf("loaded %s\n", litfilename);
2134 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
2135 memcpy(loadmodel->brushq1.lightdata, data + 8, filesize - 8);
2137 data = (unsigned char*) FS_LoadFile(dlitfilename, tempmempool, false, &filesize);
2140 if (filesize == (fs_offset_t)(8 + sb->cursize * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
2142 i = LittleLong(((int *)data)[1]);
2145 if (developer_loading.integer)
2146 Con_Printf("loaded %s\n", dlitfilename);
2147 loadmodel->brushq1.nmaplightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
2148 memcpy(loadmodel->brushq1.nmaplightdata, data + 8, filesize - 8);
2149 loadmodel->brushq3.deluxemapping_modelspace = false;
2150 loadmodel->brushq3.deluxemapping = true;
2159 Con_Printf("Unknown .lit file version (%d)\n", i);
2161 else if (filesize == 8)
2162 Con_Print("Empty .lit file, ignoring\n");
2164 Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", (int) filesize, (int) (8 + sb->cursize * 3));
2171 // LadyHavoc: oh well, expand the white lighting data
2174 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize*3);
2176 out = loadmodel->brushq1.lightdata;
2177 for (i = 0;i < sb->cursize;i++)
2187 static void Mod_Q1BSP_LoadVisibility(sizebuf_t *sb)
2189 loadmodel->brushq1.num_compressedpvs = 0;
2190 loadmodel->brushq1.data_compressedpvs = NULL;
2193 loadmodel->brushq1.num_compressedpvs = sb->cursize;
2194 loadmodel->brushq1.data_compressedpvs = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize);
2195 MSG_ReadBytes(sb, sb->cursize, loadmodel->brushq1.data_compressedpvs);
2198 // used only for HalfLife maps
2199 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
2201 char key[128], value[4096];
2205 if (!COM_ParseToken_Simple(&data, false, false, true))
2207 if (com_token[0] != '{')
2211 if (!COM_ParseToken_Simple(&data, false, false, true))
2213 if (com_token[0] == '}')
2214 break; // end of worldspawn
2215 if (com_token[0] == '_')
2216 strlcpy(key, com_token + 1, sizeof(key));
2218 strlcpy(key, com_token, sizeof(key));
2219 while (key[strlen(key)-1] == ' ') // remove trailing spaces
2220 key[strlen(key)-1] = 0;
2221 if (!COM_ParseToken_Simple(&data, false, false, true))
2223 dpsnprintf(value, sizeof(value), "%s", com_token);
2224 if (!strcmp("wad", key)) // for HalfLife maps
2226 if (loadmodel->brush.ishlbsp)
2229 for (i = 0;i < (int)sizeof(value);i++)
2230 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
2232 if (i < (int)sizeof(value) && value[i])
2234 for (;i < (int)sizeof(value);i++)
2236 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
2237 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
2239 else if (value[i] == ';' || value[i] == 0)
2243 W_LoadTextureWadFile(&value[j], false);
2255 static void Mod_Q1BSP_LoadEntities(sizebuf_t *sb)
2257 loadmodel->brush.entities = NULL;
2260 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, sb->cursize + 1);
2261 MSG_ReadBytes(sb, sb->cursize, (unsigned char *)loadmodel->brush.entities);
2262 loadmodel->brush.entities[sb->cursize] = 0;
2263 if (loadmodel->brush.ishlbsp)
2264 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
2268 static void Mod_Q1BSP_LoadVertexes(sizebuf_t *sb)
2272 int structsize = 12;
2274 if (sb->cursize % structsize)
2275 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
2276 count = sb->cursize / structsize;
2277 out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2279 loadmodel->brushq1.vertexes = out;
2280 loadmodel->brushq1.numvertexes = count;
2282 for ( i=0 ; i<count ; i++, out++)
2284 out->position[0] = MSG_ReadLittleFloat(sb);
2285 out->position[1] = MSG_ReadLittleFloat(sb);
2286 out->position[2] = MSG_ReadLittleFloat(sb);
2290 static void Mod_Q1BSP_LoadSubmodels(sizebuf_t *sb, hullinfo_t *hullinfo)
2294 int structsize = (48+4*hullinfo->filehulls);
2296 if (sb->cursize % structsize)
2297 Host_Error ("Mod_Q1BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
2299 count = sb->cursize / structsize;
2300 out = (mmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
2302 loadmodel->brushq1.submodels = out;
2303 loadmodel->brush.numsubmodels = count;
2305 for (i = 0; i < count; i++, out++)
2307 // spread out the mins / maxs by a pixel
2308 out->mins[0] = MSG_ReadLittleFloat(sb) - 1;
2309 out->mins[1] = MSG_ReadLittleFloat(sb) - 1;
2310 out->mins[2] = MSG_ReadLittleFloat(sb) - 1;
2311 out->maxs[0] = MSG_ReadLittleFloat(sb) + 1;
2312 out->maxs[1] = MSG_ReadLittleFloat(sb) + 1;
2313 out->maxs[2] = MSG_ReadLittleFloat(sb) + 1;
2314 out->origin[0] = MSG_ReadLittleFloat(sb);
2315 out->origin[1] = MSG_ReadLittleFloat(sb);
2316 out->origin[2] = MSG_ReadLittleFloat(sb);
2317 for (j = 0; j < hullinfo->filehulls; j++)
2318 out->headnode[j] = MSG_ReadLittleLong(sb);
2319 out->visleafs = MSG_ReadLittleLong(sb);
2320 out->firstface = MSG_ReadLittleLong(sb);
2321 out->numfaces = MSG_ReadLittleLong(sb);
2325 static void Mod_Q1BSP_LoadEdges(sizebuf_t *sb)
2329 int structsize = loadmodel->brush.isbsp2 ? 8 : 4;
2331 if (sb->cursize % structsize)
2332 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
2333 count = sb->cursize / structsize;
2334 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
2336 loadmodel->brushq1.edges = out;
2337 loadmodel->brushq1.numedges = count;
2339 for ( i=0 ; i<count ; i++, out++)
2341 if (loadmodel->brush.isbsp2)
2343 out->v[0] = (unsigned int)MSG_ReadLittleLong(sb);
2344 out->v[1] = (unsigned int)MSG_ReadLittleLong(sb);
2348 out->v[0] = (unsigned short)MSG_ReadLittleShort(sb);
2349 out->v[1] = (unsigned short)MSG_ReadLittleShort(sb);
2351 if ((int)out->v[0] >= loadmodel->brushq1.numvertexes || (int)out->v[1] >= loadmodel->brushq1.numvertexes)
2353 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);
2354 if(!loadmodel->brushq1.numvertexes)
2355 Host_Error("Mod_Q1BSP_LoadEdges: %s has edges but no vertexes, cannot fix\n", loadmodel->name);
2363 static void Mod_Q1BSP_LoadTexinfo(sizebuf_t *sb)
2366 int i, j, k, count, miptex;
2367 int structsize = 40;
2369 if (sb->cursize % structsize)
2370 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
2371 count = sb->cursize / structsize;
2372 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
2374 loadmodel->brushq1.texinfo = out;
2375 loadmodel->brushq1.numtexinfo = count;
2377 for (i = 0;i < count;i++, out++)
2379 for (k = 0;k < 2;k++)
2380 for (j = 0;j < 4;j++)
2381 out->vecs[k][j] = MSG_ReadLittleFloat(sb);
2383 miptex = MSG_ReadLittleLong(sb);
2384 out->q1flags = MSG_ReadLittleLong(sb);
2386 if (out->q1flags & TEX_SPECIAL)
2388 // if texture chosen is NULL or the shader needs a lightmap,
2389 // force to notexture water shader
2390 out->textureindex = loadmodel->num_textures - 1;
2394 // if texture chosen is NULL, force to notexture
2395 out->textureindex = loadmodel->num_textures - 2;
2397 // see if the specified miptex is valid and try to use it instead
2398 if (loadmodel->data_textures)
2400 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
2401 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
2403 out->textureindex = miptex;
2409 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
2414 mins[0] = mins[1] = mins[2] = 9999;
2415 maxs[0] = maxs[1] = maxs[2] = -9999;
2417 for (i = 0;i < numverts;i++)
2419 for (j = 0;j < 3;j++, v++)
2429 #define MAX_SUBDIVPOLYTRIANGLES 4096
2430 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
2432 static int subdivpolyverts, subdivpolytriangles;
2433 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
2434 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
2436 static int subdivpolylookupvert(vec3_t v)
2439 for (i = 0;i < subdivpolyverts;i++)
2440 if (subdivpolyvert[i][0] == v[0]
2441 && subdivpolyvert[i][1] == v[1]
2442 && subdivpolyvert[i][2] == v[2])
2444 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
2445 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
2446 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
2447 return subdivpolyverts++;
2450 static void SubdividePolygon(int numverts, float *verts)
2452 int i, i1, i2, i3, f, b, c, p;
2453 vec3_t mins, maxs, front[256], back[256];
2454 float m, *pv, *cv, dist[256], frac;
2457 Host_Error("SubdividePolygon: ran out of verts in buffer");
2459 BoundPoly(numverts, verts, mins, maxs);
2461 for (i = 0;i < 3;i++)
2463 m = (mins[i] + maxs[i]) * 0.5;
2464 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
2465 if (maxs[i] - m < 8)
2467 if (m - mins[i] < 8)
2471 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
2472 dist[c] = cv[i] - m;
2475 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
2479 VectorCopy(pv, front[f]);
2484 VectorCopy(pv, back[b]);
2487 if (dist[p] == 0 || dist[c] == 0)
2489 if ((dist[p] > 0) != (dist[c] > 0) )
2492 frac = dist[p] / (dist[p] - dist[c]);
2493 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
2494 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
2495 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
2501 SubdividePolygon(f, front[0]);
2502 SubdividePolygon(b, back[0]);
2506 i1 = subdivpolylookupvert(verts);
2507 i2 = subdivpolylookupvert(verts + 3);
2508 for (i = 2;i < numverts;i++)
2510 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
2512 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
2516 i3 = subdivpolylookupvert(verts + i * 3);
2517 subdivpolyindex[subdivpolytriangles][0] = i1;
2518 subdivpolyindex[subdivpolytriangles][1] = i2;
2519 subdivpolyindex[subdivpolytriangles][2] = i3;
2521 subdivpolytriangles++;
2525 //Breaks a polygon up along axial 64 unit
2526 //boundaries so that turbulent and sky warps
2527 //can be done reasonably.
2528 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
2534 subdivpolytriangles = 0;
2535 subdivpolyverts = 0;
2536 SubdividePolygon(surface->num_vertices, (surface->mesh->data_vertex3f + 3 * surface->num_firstvertex));
2537 if (subdivpolytriangles < 1)
2538 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?");
2540 surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
2541 mesh->num_vertices = subdivpolyverts;
2542 mesh->num_triangles = subdivpolytriangles;
2543 mesh->vertex = (surfvertex_t *)(mesh + 1);
2544 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
2545 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
2547 for (i = 0;i < mesh->num_triangles;i++)
2548 for (j = 0;j < 3;j++)
2549 mesh->index[i*3+j] = subdivpolyindex[i][j];
2551 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
2553 VectorCopy(subdivpolyvert[i], v->v);
2554 v->st[0] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[0]);
2555 v->st[1] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[1]);
2560 extern cvar_t gl_max_lightmapsize;
2561 static void Mod_Q1BSP_LoadFaces(sizebuf_t *sb)
2563 msurface_t *surface;
2564 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber, lightmapsize, totallightmapsamples, lightmapoffset, texinfoindex;
2565 float texmins[2], texmaxs[2], val;
2566 rtexture_t *lightmaptexture, *deluxemaptexture;
2568 int structsize = loadmodel->brush.isbsp2 ? 28 : 20;
2570 if (sb->cursize % structsize)
2571 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
2572 count = sb->cursize / structsize;
2573 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
2574 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
2576 loadmodel->num_surfaces = count;
2578 loadmodel->brushq1.firstrender = true;
2579 loadmodel->brushq1.lightmapupdateflags = (unsigned char *)Mem_Alloc(loadmodel->mempool, count*sizeof(unsigned char));
2583 for (surfacenum = 0;surfacenum < count;surfacenum++)
2585 if (loadmodel->brush.isbsp2)
2586 numedges = BuffLittleLong(sb->data + structsize * surfacenum + 12);
2588 numedges = BuffLittleShort(sb->data + structsize * surfacenum + 8);
2589 totalverts += numedges;
2590 totaltris += numedges - 2;
2593 Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false);
2595 lightmaptexture = NULL;
2596 deluxemaptexture = r_texture_blanknormalmap;
2598 lightmapsize = bound(256, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d);
2599 totallightmapsamples = 0;
2603 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2605 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
2606 // the struct on disk is the same in BSP29 (Q1), BSP30 (HL1), and IBSP38 (Q2)
2607 planenum = loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2608 /*side = */loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2609 firstedge = MSG_ReadLittleLong(sb);
2610 numedges = loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2611 texinfoindex = loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2612 for (i = 0;i < MAXLIGHTMAPS;i++)
2613 surface->lightmapinfo->styles[i] = MSG_ReadByte(sb);
2614 lightmapoffset = MSG_ReadLittleLong(sb);
2616 // FIXME: validate edges, texinfo, etc?
2617 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)
2618 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)", firstedge, numedges, loadmodel->brushq1.numsurfedges);
2619 if ((unsigned int) texinfoindex >= (unsigned int) loadmodel->brushq1.numtexinfo)
2620 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)", texinfoindex, loadmodel->brushq1.numtexinfo);
2621 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
2622 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)", planenum, loadmodel->brush.num_planes);
2624 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + texinfoindex;
2625 surface->texture = loadmodel->data_textures + surface->lightmapinfo->texinfo->textureindex;
2627 // Q2BSP doesn't use lightmaps on sky or warped surfaces (water), but still has a lightofs of 0
2628 if (lightmapoffset == 0 && (surface->texture->q2flags & (Q2SURF_SKY | Q2SURF_WARP)))
2629 lightmapoffset = -1;
2631 //surface->flags = surface->texture->flags;
2632 //if (LittleShort(in->side))
2633 // surface->flags |= SURF_PLANEBACK;
2634 //surface->plane = loadmodel->brush.data_planes + planenum;
2636 surface->num_firstvertex = totalverts;
2637 surface->num_vertices = numedges;
2638 surface->num_firsttriangle = totaltris;
2639 surface->num_triangles = numedges - 2;
2640 totalverts += numedges;
2641 totaltris += numedges - 2;
2643 // convert edges back to a normal polygon
2644 for (i = 0;i < surface->num_vertices;i++)
2646 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
2648 // note: the q1bsp format does not allow a 0 surfedge (it would have no negative counterpart)
2650 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2652 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2653 s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2654 t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2655 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
2656 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
2657 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
2658 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
2659 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
2662 for (i = 0;i < surface->num_triangles;i++)
2664 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
2665 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
2666 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
2669 // compile additional data about the surface geometry
2670 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, r_smoothnormals_areaweighting.integer != 0);
2671 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, r_smoothnormals_areaweighting.integer != 0);
2672 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
2674 // generate surface extents information
2675 texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2676 texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2677 for (i = 1;i < surface->num_vertices;i++)
2679 for (j = 0;j < 2;j++)
2681 val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
2682 texmins[j] = min(texmins[j], val);
2683 texmaxs[j] = max(texmaxs[j], val);
2686 for (i = 0;i < 2;i++)
2688 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
2689 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
2692 smax = surface->lightmapinfo->extents[0] >> 4;
2693 tmax = surface->lightmapinfo->extents[1] >> 4;
2694 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2695 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2698 surface->lightmaptexture = NULL;
2699 surface->deluxemaptexture = r_texture_blanknormalmap;
2700 if (lightmapoffset == -1)
2702 surface->lightmapinfo->samples = NULL;
2704 // give non-lightmapped water a 1x white lightmap
2705 if (!loadmodel->brush.isq2bsp && surface->texture->name[0] == '*' && (surface->lightmapinfo->texinfo->q1flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
2707 surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2708 surface->lightmapinfo->styles[0] = 0;
2709 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
2713 else if (loadmodel->brush.ishlbsp || loadmodel->brush.isq2bsp) // LadyHavoc: HalfLife map (bsp version 30)
2714 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + lightmapoffset;
2715 else // LadyHavoc: white lighting (bsp version 29)
2717 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (lightmapoffset * 3);
2718 if (loadmodel->brushq1.nmaplightdata)
2719 surface->lightmapinfo->nmapsamples = loadmodel->brushq1.nmaplightdata + (lightmapoffset * 3);
2722 // check if we should apply a lightmap to this
2723 if (!(surface->lightmapinfo->texinfo->q1flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
2725 if (ssize > 256 || tsize > 256)
2726 Host_Error("Bad surface extents");
2728 if (lightmapsize < ssize)
2729 lightmapsize = ssize;
2730 if (lightmapsize < tsize)
2731 lightmapsize = tsize;
2733 totallightmapsamples += ssize*tsize;
2735 // force lightmap upload on first time seeing the surface
2737 // additionally this is used by the later code to see if a
2738 // lightmap is needed on this surface (rather than duplicating the
2740 loadmodel->brushq1.lightmapupdateflags[surfacenum] = true;
2741 loadmodel->lit = true;
2745 // small maps (such as ammo boxes especially) don't need big lightmap
2746 // textures, so this code tries to guess a good size based on
2747 // totallightmapsamples (size of the lightmaps lump basically), as well as
2748 // trying to max out the size if there is a lot of lightmap data to store
2749 // additionally, never choose a lightmapsize that is smaller than the
2750 // largest surface encountered (as it would fail)
2752 for (lightmapsize = 64; (lightmapsize < i) && (lightmapsize < bound(128, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d)) && (totallightmapsamples > lightmapsize*lightmapsize); lightmapsize*=2)
2755 // now that we've decided the lightmap texture size, we can do the rest
2756 if (cls.state != ca_dedicated)
2758 int stainmapsize = 0;
2759 mod_alloclightmap_state_t allocState;
2761 Mod_AllocLightmap_Init(&allocState, loadmodel->mempool, lightmapsize, lightmapsize);
2762 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2764 int iu, iv, lightmapx = 0, lightmapy = 0;
2765 float u, v, ubase, vbase, uscale, vscale;
2767 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
2770 smax = surface->lightmapinfo->extents[0] >> 4;
2771 tmax = surface->lightmapinfo->extents[1] >> 4;
2772 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2773 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2774 stainmapsize += ssize * tsize * 3;
2776 if (!lightmaptexture || !Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy))
2778 // allocate a texture pool if we need it
2779 if (loadmodel->texturepool == NULL)
2780 loadmodel->texturepool = R_AllocTexturePool();
2781 // could not find room, make a new lightmap
2782 loadmodel->brushq3.num_mergedlightmaps = lightmapnumber + 1;
2783 loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Realloc(loadmodel->mempool, loadmodel->brushq3.data_lightmaps, loadmodel->brushq3.num_mergedlightmaps * sizeof(loadmodel->brushq3.data_lightmaps[0]));
2784 loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Realloc(loadmodel->mempool, loadmodel->brushq3.data_deluxemaps, loadmodel->brushq3.num_mergedlightmaps * sizeof(loadmodel->brushq3.data_deluxemaps[0]));
2785 loadmodel->brushq3.data_lightmaps[lightmapnumber] = lightmaptexture = R_LoadTexture2D(loadmodel->texturepool, va(vabuf, sizeof(vabuf), "lightmap%i", lightmapnumber), lightmapsize, lightmapsize, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_ALLOWUPDATES, -1, NULL);
2786 if (loadmodel->brushq1.nmaplightdata)
2787 loadmodel->brushq3.data_deluxemaps[lightmapnumber] = deluxemaptexture = R_LoadTexture2D(loadmodel->texturepool, va(vabuf, sizeof(vabuf), "deluxemap%i", lightmapnumber), lightmapsize, lightmapsize, NULL, TEXTYPE_BGRA, TEXF_FORCELINEAR | TEXF_ALLOWUPDATES, -1, NULL);
2789 Mod_AllocLightmap_Reset(&allocState);
2790 Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy);
2792 surface->lightmaptexture = lightmaptexture;
2793 surface->deluxemaptexture = deluxemaptexture;
2794 surface->lightmapinfo->lightmaporigin[0] = lightmapx;
2795 surface->lightmapinfo->lightmaporigin[1] = lightmapy;
2797 uscale = 1.0f / (float)lightmapsize;
2798 vscale = 1.0f / (float)lightmapsize;
2799 ubase = lightmapx * uscale;
2800 vbase = lightmapy * vscale;
2802 for (i = 0;i < surface->num_vertices;i++)
2804 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);
2805 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);
2806 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
2807 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
2808 // LadyHavoc: calc lightmap data offset for vertex lighting to use
2811 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
2815 if (cl_stainmaps.integer)
2817 // allocate stainmaps for permanent marks on walls and clear white
2818 unsigned char *stainsamples = NULL;
2819 stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, stainmapsize);
2820 memset(stainsamples, 255, stainmapsize);
2822 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2824 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
2826 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2827 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2828 surface->lightmapinfo->stainsamples = stainsamples;
2829 stainsamples += ssize * tsize * 3;
2834 // generate ushort elements array if possible
2835 if (loadmodel->surfmesh.data_element3s)
2836 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2837 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2840 static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
2843 // Host_Error("Mod_Q1BSP_LoadNodes_RecursiveSetParent: runaway recursion");
2844 node->parent = parent;
2847 // this is a node, recurse to children
2848 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
2849 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
2850 // combine supercontents of children
2851 node->combinedsupercontents = node->children[0]->combinedsupercontents | node->children[1]->combinedsupercontents;
2856 mleaf_t *leaf = (mleaf_t *)node;
2857 // if this is a leaf, calculate supercontents mask from all collidable
2858 // primitives in the leaf (brushes and collision surfaces)
2859 // also flag if the leaf contains any collision surfaces
2860 leaf->combinedsupercontents = 0;
2861 // combine the supercontents values of all brushes in this leaf
2862 for (j = 0;j < leaf->numleafbrushes;j++)
2863 leaf->combinedsupercontents |= loadmodel->brush.data_brushes[leaf->firstleafbrush[j]].texture->supercontents;
2864 // check if this leaf contains any collision surfaces (q3 patches)
2865 for (j = 0;j < leaf->numleafsurfaces;j++)
2867 msurface_t *surface = loadmodel->data_surfaces + leaf->firstleafsurface[j];
2868 if (surface->num_collisiontriangles)
2870 leaf->containscollisionsurfaces = true;
2871 leaf->combinedsupercontents |= surface->texture->supercontents;
2877 static void Mod_Q1BSP_LoadNodes(sizebuf_t *sb)
2879 int i, j, count, p, child[2];
2881 int structsize = loadmodel->brush.isbsp2rmqe ? 32 : (loadmodel->brush.isbsp2 ? 44 : 24);
2883 if (sb->cursize % structsize)
2884 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
2885 count = sb->cursize / structsize;
2887 Host_Error("Mod_Q1BSP_LoadNodes: missing BSP tree in %s",loadmodel->name);
2888 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2890 loadmodel->brush.data_nodes = out;
2891 loadmodel->brush.num_nodes = count;
2893 for ( i=0 ; i<count ; i++, out++)
2895 p = MSG_ReadLittleLong(sb);
2896 out->plane = loadmodel->brush.data_planes + p;
2898 if (loadmodel->brush.isbsp2rmqe)
2900 child[0] = MSG_ReadLittleLong(sb);
2901 child[1] = MSG_ReadLittleLong(sb);
2902 out->mins[0] = MSG_ReadLittleShort(sb);
2903 out->mins[1] = MSG_ReadLittleShort(sb);
2904 out->mins[2] = MSG_ReadLittleShort(sb);
2905 out->maxs[0] = MSG_ReadLittleShort(sb);
2906 out->maxs[1] = MSG_ReadLittleShort(sb);
2907 out->maxs[2] = MSG_ReadLittleShort(sb);
2908 out->firstsurface = MSG_ReadLittleLong(sb);
2909 out->numsurfaces = MSG_ReadLittleLong(sb);
2911 else if (loadmodel->brush.isbsp2)
2913 child[0] = MSG_ReadLittleLong(sb);
2914 child[1] = MSG_ReadLittleLong(sb);
2915 out->mins[0] = MSG_ReadLittleFloat(sb);
2916 out->mins[1] = MSG_ReadLittleFloat(sb);
2917 out->mins[2] = MSG_ReadLittleFloat(sb);
2918 out->maxs[0] = MSG_ReadLittleFloat(sb);
2919 out->maxs[1] = MSG_ReadLittleFloat(sb);
2920 out->maxs[2] = MSG_ReadLittleFloat(sb);
2921 out->firstsurface = MSG_ReadLittleLong(sb);
2922 out->numsurfaces = MSG_ReadLittleLong(sb);
2926 child[0] = (unsigned short)MSG_ReadLittleShort(sb);
2927 child[1] = (unsigned short)MSG_ReadLittleShort(sb);
2928 if (child[0] >= count)
2930 if (child[1] >= count)
2933 out->mins[0] = MSG_ReadLittleShort(sb);
2934 out->mins[1] = MSG_ReadLittleShort(sb);
2935 out->mins[2] = MSG_ReadLittleShort(sb);
2936 out->maxs[0] = MSG_ReadLittleShort(sb);
2937 out->maxs[1] = MSG_ReadLittleShort(sb);
2938 out->maxs[2] = MSG_ReadLittleShort(sb);
2940 out->firstsurface = (unsigned short)MSG_ReadLittleShort(sb);
2941 out->numsurfaces = (unsigned short)MSG_ReadLittleShort(sb);
2944 for (j=0 ; j<2 ; j++)
2946 // LadyHavoc: this code supports broken bsp files produced by
2947 // arguire qbsp which can produce more than 32768 nodes, any value
2948 // below count is assumed to be a node number, any other value is
2949 // assumed to be a leaf number
2953 if (p < loadmodel->brush.num_nodes)
2954 out->children[j] = loadmodel->brush.data_nodes + p;
2957 Con_Printf("Mod_Q1BSP_LoadNodes: invalid node index %i (file has only %i nodes)\n", p, loadmodel->brush.num_nodes);
2958 // map it to the solid leaf
2959 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
2964 // get leaf index as a positive value starting at 0 (-1 becomes 0, -2 becomes 1, etc)
2966 if (p < loadmodel->brush.num_leafs)
2967 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + p);
2970 Con_Printf("Mod_Q1BSP_LoadNodes: invalid leaf index %i (file has only %i leafs)\n", p, loadmodel->brush.num_leafs);
2971 // map it to the solid leaf
2972 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
2978 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
2981 static void Mod_Q1BSP_LoadLeafs(sizebuf_t *sb)
2984 int i, j, count, p, firstmarksurface, nummarksurfaces;
2985 int structsize = loadmodel->brush.isbsp2rmqe ? 32 : (loadmodel->brush.isbsp2 ? 44 : 28);
2987 if (sb->cursize % structsize)
2988 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2989 count = sb->cursize / structsize;
2990 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2992 loadmodel->brush.data_leafs = out;
2993 loadmodel->brush.num_leafs = count;
2994 // get visleafs from the submodel data
2995 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2996 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2997 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2998 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
3000 // FIXME: this function could really benefit from some error checking
3001 for ( i=0 ; i<count ; i++, out++)
3003 out->contents = MSG_ReadLittleLong(sb);
3005 out->clusterindex = i - 1;
3006 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
3007 out->clusterindex = -1;
3009 p = MSG_ReadLittleLong(sb);
3010 // ignore visofs errors on leaf 0 (solid)
3011 if (p >= 0 && out->clusterindex >= 0)
3013 if (p >= loadmodel->brushq1.num_compressedpvs)
3014 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
3016 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);
3019 if (loadmodel->brush.isbsp2rmqe)
3021 out->mins[0] = MSG_ReadLittleShort(sb);
3022 out->mins[1] = MSG_ReadLittleShort(sb);
3023 out->mins[2] = MSG_ReadLittleShort(sb);
3024 out->maxs[0] = MSG_ReadLittleShort(sb);
3025 out->maxs[1] = MSG_ReadLittleShort(sb);
3026 out->maxs[2] = MSG_ReadLittleShort(sb);
3028 firstmarksurface = MSG_ReadLittleLong(sb);
3029 nummarksurfaces = MSG_ReadLittleLong(sb);
3031 else if (loadmodel->brush.isbsp2)
3033 out->mins[0] = MSG_ReadLittleFloat(sb);
3034 out->mins[1] = MSG_ReadLittleFloat(sb);
3035 out->mins[2] = MSG_ReadLittleFloat(sb);
3036 out->maxs[0] = MSG_ReadLittleFloat(sb);
3037 out->maxs[1] = MSG_ReadLittleFloat(sb);
3038 out->maxs[2] = MSG_ReadLittleFloat(sb);
3040 firstmarksurface = MSG_ReadLittleLong(sb);
3041 nummarksurfaces = MSG_ReadLittleLong(sb);
3045 out->mins[0] = MSG_ReadLittleShort(sb);
3046 out->mins[1] = MSG_ReadLittleShort(sb);
3047 out->mins[2] = MSG_ReadLittleShort(sb);
3048 out->maxs[0] = MSG_ReadLittleShort(sb);
3049 out->maxs[1] = MSG_ReadLittleShort(sb);
3050 out->maxs[2] = MSG_ReadLittleShort(sb);
3052 firstmarksurface = (unsigned short)MSG_ReadLittleShort(sb);
3053 nummarksurfaces = (unsigned short)MSG_ReadLittleShort(sb);
3056 if (firstmarksurface >= 0 && firstmarksurface + nummarksurfaces <= loadmodel->brush.num_leafsurfaces)
3058 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + firstmarksurface;
3059 out->numleafsurfaces = nummarksurfaces;
3063 Con_Printf("Mod_Q1BSP_LoadLeafs: invalid leafsurface range %i:%i outside range %i:%i\n", firstmarksurface, firstmarksurface+nummarksurfaces, 0, loadmodel->brush.num_leafsurfaces);
3064 out->firstleafsurface = NULL;
3065 out->numleafsurfaces = 0;
3068 for (j = 0;j < 4;j++)
3069 out->ambient_sound_level[j] = MSG_ReadByte(sb);
3073 static qboolean Mod_Q1BSP_CheckWaterAlphaSupport(void)
3077 const unsigned char *pvs;
3078 // if there's no vis data, assume supported (because everything is visible all the time)
3079 if (!loadmodel->brush.data_pvsclusters)
3081 // check all liquid leafs to see if they can see into empty leafs, if any
3082 // can we can assume this map supports r_wateralpha
3083 for (i = 0, leaf = loadmodel->brush.data_leafs;i < loadmodel->brush.num_leafs;i++, leaf++)
3085 if ((leaf->contents == CONTENTS_WATER || leaf->contents == CONTENTS_SLIME) && leaf->clusterindex >= 0)
3087 pvs = loadmodel->brush.data_pvsclusters + leaf->clusterindex * loadmodel->brush.num_pvsclusterbytes;
3088 for (j = 0;j < loadmodel->brush.num_leafs;j++)
3089 if (CHECKPVSBIT(pvs, loadmodel->brush.data_leafs[j].clusterindex) && loadmodel->brush.data_leafs[j].contents == CONTENTS_EMPTY)
3096 static void Mod_Q1BSP_LoadClipnodes(sizebuf_t *sb, hullinfo_t *hullinfo)
3101 int structsize = loadmodel->brush.isbsp2 ? 12 : 8;
3103 if (sb->cursize % structsize)
3104 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
3105 count = sb->cursize / structsize;
3106 out = (mclipnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
3108 loadmodel->brushq1.clipnodes = out;
3109 loadmodel->brushq1.numclipnodes = count;
3111 for (i = 1; i < MAX_MAP_HULLS; i++)
3113 hull = &loadmodel->brushq1.hulls[i];
3114 hull->clipnodes = out;
3115 hull->firstclipnode = 0;
3116 hull->lastclipnode = count-1;
3117 hull->planes = loadmodel->brush.data_planes;
3118 hull->clip_mins[0] = hullinfo->hullsizes[i][0][0];
3119 hull->clip_mins[1] = hullinfo->hullsizes[i][0][1];
3120 hull->clip_mins[2] = hullinfo->hullsizes[i][0][2];
3121 hull->clip_maxs[0] = hullinfo->hullsizes[i][1][0];
3122 hull->clip_maxs[1] = hullinfo->hullsizes[i][1][1];
3123 hull->clip_maxs[2] = hullinfo->hullsizes[i][1][2];
3124 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
3127 for (i=0 ; i<count ; i++, out++)
3129 out->planenum = MSG_ReadLittleLong(sb);
3130 if (out->planenum < 0 || out->planenum >= loadmodel->brush.num_planes)
3131 Host_Error("%s: Corrupt clipping hull(out of range planenum)", loadmodel->name);
3132 if (loadmodel->brush.isbsp2)
3134 out->children[0] = MSG_ReadLittleLong(sb);
3135 out->children[1] = MSG_ReadLittleLong(sb);
3136 if (out->children[0] >= count)
3137 Host_Error("%s: Corrupt clipping hull (invalid child index)", loadmodel->name);
3138 if (out->children[1] >= count)
3139 Host_Error("%s: Corrupt clipping hull (invalid child index)", loadmodel->name);
3143 // LadyHavoc: this code supports arguire qbsp's broken clipnodes indices (more than 32768 clipnodes), values above count are assumed to be contents values
3144 out->children[0] = (unsigned short)MSG_ReadLittleShort(sb);
3145 out->children[1] = (unsigned short)MSG_ReadLittleShort(sb);
3146 if (out->children[0] >= count)
3147 out->children[0] -= 65536;
3148 if (out->children[1] >= count)
3149 out->children[1] -= 65536;
3154 //Duplicate the drawing hull structure as a clipping hull
3155 static void Mod_Q1BSP_MakeHull0(void)
3162 hull = &loadmodel->brushq1.hulls[0];
3164 in = loadmodel->brush.data_nodes;
3165 out = (mclipnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(*out));
3167 hull->clipnodes = out;
3168 hull->firstclipnode = 0;
3169 hull->lastclipnode = loadmodel->brush.num_nodes - 1;
3170 hull->planes = loadmodel->brush.data_planes;
3172 for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
3174 out->planenum = in->plane - loadmodel->brush.data_planes;
3175 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
3176 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
3180 static void Mod_Q1BSP_LoadLeaffaces(sizebuf_t *sb)
3183 int structsize = loadmodel->brush.isbsp2 ? 4 : 2;
3185 if (sb->cursize % structsize)
3186 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
3187 loadmodel->brush.num_leafsurfaces = sb->cursize / structsize;
3188 loadmodel->brush.data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
3190 if (loadmodel->brush.isbsp2)
3192 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
3194 j = MSG_ReadLittleLong(sb);
3195 if (j < 0 || j >= loadmodel->num_surfaces)
3196 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
3197 loadmodel->brush.data_leafsurfaces[i] = j;
3202 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
3204 j = (unsigned short) MSG_ReadLittleShort(sb);
3205 if (j >= loadmodel->num_surfaces)
3206 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
3207 loadmodel->brush.data_leafsurfaces[i] = j;
3212 static void Mod_Q1BSP_LoadSurfedges(sizebuf_t *sb)
3217 if (sb->cursize % structsize)
3218 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
3219 loadmodel->brushq1.numsurfedges = sb->cursize / structsize;
3220 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
3222 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
3223 loadmodel->brushq1.surfedges[i] = MSG_ReadLittleLong(sb);
3227 static void Mod_Q1BSP_LoadPlanes(sizebuf_t *sb)
3231 int structsize = 20;
3233 if (sb->cursize % structsize)
3234 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
3235 loadmodel->brush.num_planes = sb->cursize / structsize;
3236 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
3238 for (i = 0;i < loadmodel->brush.num_planes;i++, out++)
3240 out->normal[0] = MSG_ReadLittleFloat(sb);
3241 out->normal[1] = MSG_ReadLittleFloat(sb);
3242 out->normal[2] = MSG_ReadLittleFloat(sb);
3243 out->dist = MSG_ReadLittleFloat(sb);
3244 MSG_ReadLittleLong(sb); // type is not used, we use PlaneClassify
3249 // fixes up sky surfaces that have SKY contents behind them, so that they do not cast shadows (e1m5 logo shadow trick).
3250 static void Mod_Q1BSP_AssignNoShadowSkySurfaces(dp_model_t *mod)
3253 msurface_t *surface;
3256 for (i = 0, surface = mod->data_surfaces + mod->firstmodelsurface; i < mod->nummodelsurfaces; i++, surface++)
3258 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
3260 // check if the point behind the surface polygon is SOLID or SKY contents
3261 VectorMAMAM(0.5f, surface->mins, 0.5f, surface->maxs, -0.25f, mod->surfmesh.data_normal3f + 3*surface->num_firstvertex, center);
3262 contents = Mod_Q1BSP_PointSuperContents(mod, 0, center);
3263 if (!(contents & SUPERCONTENTS_SOLID))
3264 surface->texture = surface->texture->skynoshadowtexture;
3269 static void Mod_Q1BSP_LoadMapBrushes(void)
3273 int submodel, numbrushes;
3274 qboolean firstbrush;
3275 char *text, *maptext;
3276 char mapfilename[MAX_QPATH];
3277 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
3278 strlcat (mapfilename, ".map", sizeof (mapfilename));
3279 maptext = (unsigned char*) FS_LoadFile(mapfilename, tempmempool, false, NULL);
3283 if (!COM_ParseToken_Simple(&data, false, false, true))
3288 if (!COM_ParseToken_Simple(&data, false, false, true))
3290 if (com_token[0] != '{')
3296 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
3299 if (!COM_ParseToken_Simple(&data, false, false, true))
3301 if (com_token[0] == '}')
3302 break; // end of entity
3303 if (com_token[0] == '{')
3310 if (submodel > loadmodel->brush.numsubmodels)
3312 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
3316 model = loadmodel->brush.submodels[submodel];
3323 if (!COM_ParseToken_Simple(&data, false, false, true))
3325 if (com_token[0] == '}')
3326 break; // end of brush
3327 // each brush face should be this format:
3328 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
3329 // FIXME: support hl .map format
3330 for (pointnum = 0;pointnum < 3;pointnum++)
3332 COM_ParseToken_Simple(&data, false, false, true);
3333 for (componentnum = 0;componentnum < 3;componentnum++)
3335 COM_ParseToken_Simple(&data, false, false, true);
3336 point[pointnum][componentnum] = atof(com_token);
3338 COM_ParseToken_Simple(&data, false, false, true);
3340 COM_ParseToken_Simple(&data, false, false, true);
3341 strlcpy(facetexture, com_token, sizeof(facetexture));
3342 COM_ParseToken_Simple(&data, false, false, true);
3343 //scroll_s = atof(com_token);
3344 COM_ParseToken_Simple(&data, false, false, true);
3345 //scroll_t = atof(com_token);
3346 COM_ParseToken_Simple(&data, false, false, true);
3347 //rotate = atof(com_token);
3348 COM_ParseToken_Simple(&data, false, false, true);
3349 //scale_s = atof(com_token);
3350 COM_ParseToken_Simple(&data, false, false, true);
3351 //scale_t = atof(com_token);
3352 TriangleNormal(point[0], point[1], point[2], planenormal);
3353 VectorNormalizeDouble(planenormal);
3354 planedist = DotProduct(point[0], planenormal);
3355 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
3365 #define MAX_PORTALPOINTS 64
3367 typedef struct portal_s
3370 mnode_t *nodes[2]; // [0] = front side of plane
3371 struct portal_s *next[2];
3373 double points[3*MAX_PORTALPOINTS];
3374 struct portal_s *chain; // all portals are linked into a list
3378 static memexpandablearray_t portalarray;
3380 static void Mod_Q1BSP_RecursiveRecalcNodeBBox(mnode_t *node)
3382 // process only nodes (leafs already had their box calculated)
3386 // calculate children first
3387 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[0]);
3388 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[1]);
3390 // make combined bounding box from children
3391 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
3392 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
3393 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
3394 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
3395 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
3396 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
3399 static void Mod_Q1BSP_FinalizePortals(void)
3401 int i, j, numportals, numpoints, portalindex, portalrange = (int)Mem_ExpandableArray_IndexRange(&portalarray);
3405 mleaf_t *leaf, *endleaf;
3407 // tally up portal and point counts and recalculate bounding boxes for all
3408 // leafs (because qbsp is very sloppy)
3409 leaf = loadmodel->brush.data_leafs;
3410 endleaf = leaf + loadmodel->brush.num_leafs;
3411 if (mod_recalculatenodeboxes.integer)
3413 for (;leaf < endleaf;leaf++)
3415 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
3416 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
3421 for (portalindex = 0;portalindex < portalrange;portalindex++)
3423 p = (portal_t*)Mem_ExpandableArray_RecordAtIndex(&portalarray, portalindex);
3426 // note: this check must match the one below or it will usually corrupt memory
3427 // 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
3428 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
3431 numpoints += p->numpoints * 2;
3434 loadmodel->brush.data_portals = (mportal_t *)Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
3435 loadmodel->brush.num_portals = numportals;
3436 loadmodel->brush.data_portalpoints = (mvertex_t *)((unsigned char *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
3437 loadmodel->brush.num_portalpoints = numpoints;
3438 // clear all leaf portal chains
3439 for (i = 0;i < loadmodel->brush.num_leafs;i++)
3440 loadmodel->brush.data_leafs[i].portals = NULL;
3441 // process all portals in the global portal chain, while freeing them
3442 portal = loadmodel->brush.data_portals;
3443 point = loadmodel->brush.data_portalpoints;
3444 for (portalindex = 0;portalindex < portalrange;portalindex++)
3446 p = (portal_t*)Mem_ExpandableArray_RecordAtIndex(&portalarray, portalindex);
3449 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1])
3451 // note: this check must match the one above or it will usually corrupt memory
3452 // 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
3453 if (((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
3455 // first make the back to front portal(forward portal)
3456 portal->points = point;
3457 portal->numpoints = p->numpoints;
3458 portal->plane.dist = p->plane.dist;
3459 VectorCopy(p->plane.normal, portal->plane.normal);
3460 portal->here = (mleaf_t *)p->nodes[1];
3461 portal->past = (mleaf_t *)p->nodes[0];
3463 for (j = 0;j < portal->numpoints;j++)
3465 VectorCopy(p->points + j*3, point->position);
3468 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
3469 PlaneClassify(&portal->plane);
3471 // link into leaf's portal chain
3472 portal->next = portal->here->portals;
3473 portal->here->portals = portal;
3475 // advance to next portal
3478 // then make the front to back portal(backward portal)
3479 portal->points = point;
3480 portal->numpoints = p->numpoints;
3481 portal->plane.dist = -p->plane.dist;
3482 VectorNegate(p->plane.normal, portal->plane.normal);
3483 portal->here = (mleaf_t *)p->nodes[0];
3484 portal->past = (mleaf_t *)p->nodes[1];
3486 for (j = portal->numpoints - 1;j >= 0;j--)
3488 VectorCopy(p->points + j*3, point->position);
3491 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
3492 PlaneClassify(&portal->plane);
3494 // link into leaf's portal chain
3495 portal->next = portal->here->portals;
3496 portal->here->portals = portal;
3498 // advance to next portal
3501 // add the portal's polygon points to the leaf bounding boxes
3502 if (mod_recalculatenodeboxes.integer)
3504 for (i = 0;i < 2;i++)
3506 leaf = (mleaf_t *)p->nodes[i];
3507 for (j = 0;j < p->numpoints;j++)
3509 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
3510 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
3511 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
3512 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
3513 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
3514 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
3520 // now recalculate the node bounding boxes from the leafs
3521 if (mod_recalculatenodeboxes.integer)
3522 Mod_Q1BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes + loadmodel->brushq1.hulls[0].firstclipnode);
3530 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
3533 Host_Error("AddPortalToNodes: NULL front node");
3535 Host_Error("AddPortalToNodes: NULL back node");
3536 if (p->nodes[0] || p->nodes[1])
3537 Host_Error("AddPortalToNodes: already included");
3538 // 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
3540 p->nodes[0] = front;
3541 p->next[0] = (portal_t *)front->portals;
3542 front->portals = (mportal_t *)p;
3545 p->next[1] = (portal_t *)back->portals;
3546 back->portals = (mportal_t *)p;
3551 RemovePortalFromNode
3554 static void RemovePortalFromNodes(portal_t *portal)
3558 void **portalpointer;
3560 for (i = 0;i < 2;i++)
3562 node = portal->nodes[i];
3564 portalpointer = (void **) &node->portals;
3567 t = (portal_t *)*portalpointer;
3569 Host_Error("RemovePortalFromNodes: portal not in leaf");
3573 if (portal->nodes[0] == node)
3575 *portalpointer = portal->next[0];
3576 portal->nodes[0] = NULL;
3578 else if (portal->nodes[1] == node)
3580 *portalpointer = portal->next[1];
3581 portal->nodes[1] = NULL;
3584 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
3588 if (t->nodes[0] == node)
3589 portalpointer = (void **) &t->next[0];
3590 else if (t->nodes[1] == node)
3591 portalpointer = (void **) &t->next[1];
3593 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
3598 #define PORTAL_DIST_EPSILON (1.0 / 32.0)
3599 static double *portalpointsbuffer;
3600 static int portalpointsbufferoffset;
3601 static int portalpointsbuffersize;
3602 static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
3605 mnode_t *front, *back, *other_node;
3606 mplane_t clipplane, *plane;
3607 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
3608 int numfrontpoints, numbackpoints;
3609 double *frontpoints, *backpoints;
3611 // if a leaf, we're done
3615 // get some space for our clipping operations to use
3616 if (portalpointsbuffersize < portalpointsbufferoffset + 6*MAX_PORTALPOINTS)
3618 portalpointsbuffersize = portalpointsbufferoffset * 2;
3619 portalpointsbuffer = (double *)Mem_Realloc(loadmodel->mempool, portalpointsbuffer, portalpointsbuffersize * sizeof(*portalpointsbuffer));
3621 frontpoints = portalpointsbuffer + portalpointsbufferoffset;
3622 portalpointsbufferoffset += 3*MAX_PORTALPOINTS;
3623 backpoints = portalpointsbuffer + portalpointsbufferoffset;
3624 portalpointsbufferoffset += 3*MAX_PORTALPOINTS;
3626 plane = node->plane;
3628 front = node->children[0];
3629 back = node->children[1];
3631 Host_Error("Mod_Q1BSP_RecursiveNodePortals: corrupt node hierarchy");
3633 // create the new portal by generating a polygon for the node plane,
3634 // and clipping it by all of the other portals(which came from nodes above this one)
3635 nodeportal = (portal_t *)Mem_ExpandableArray_AllocRecord(&portalarray);
3636 nodeportal->plane = *plane;
3638 // 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)
3639 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);
3640 nodeportal->numpoints = 4;
3641 // side = 0; // shut up compiler warning -> should be no longer needed, Host_Error is declared noreturn now
3642 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
3644 clipplane = portal->plane;
3645 if (portal->nodes[0] == portal->nodes[1])
3646 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(1)");
3647 if (portal->nodes[0] == node)
3649 else if (portal->nodes[1] == node)
3651 clipplane.dist = -clipplane.dist;
3652 VectorNegate(clipplane.normal, clipplane.normal);
3657 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
3658 side = 0; // hush warning
3661 for (i = 0;i < nodeportal->numpoints*3;i++)
3662 frontpoints[i] = nodeportal->points[i];
3663 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);
3664 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
3668 if (nodeportal->numpoints < 3)
3670 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
3671 nodeportal->numpoints = 0;
3673 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
3675 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
3676 nodeportal->numpoints = 0;
3679 AddPortalToNodes(nodeportal, front, back);
3681 // split the portals of this node along this node's plane and assign them to the children of this node
3682 // (migrating the portals downward through the tree)
3683 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
3685 if (portal->nodes[0] == portal->nodes[1])
3686 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(2)");
3687 if (portal->nodes[0] == node)
3689 else if (portal->nodes[1] == node)
3693 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
3694 side = 0; // hush warning
3696 nextportal = portal->next[side];
3697 if (!portal->numpoints)
3700 other_node = portal->nodes[!side];
3701 RemovePortalFromNodes(portal);
3703 // cut the portal into two portals, one on each side of the node plane
3704 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);
3706 if (!numfrontpoints)
3709 AddPortalToNodes(portal, back, other_node);
3711 AddPortalToNodes(portal, other_node, back);
3717 AddPortalToNodes(portal, front, other_node);
3719 AddPortalToNodes(portal, other_node, front);
3723 // the portal is split
3724 splitportal = (portal_t *)Mem_ExpandableArray_AllocRecord(&portalarray);
3725 temp = splitportal->chain;
3726 *splitportal = *portal;
3727 splitportal->chain = temp;
3728 for (i = 0;i < numbackpoints*3;i++)
3729 splitportal->points[i] = backpoints[i];
3730 splitportal->numpoints = numbackpoints;
3731 for (i = 0;i < numfrontpoints*3;i++)
3732 portal->points[i] = frontpoints[i];
3733 portal->numpoints = numfrontpoints;
3737 AddPortalToNodes(portal, front, other_node);
3738 AddPortalToNodes(splitportal, back, other_node);
3742 AddPortalToNodes(portal, other_node, front);
3743 AddPortalToNodes(splitportal, other_node, back);
3747 Mod_Q1BSP_RecursiveNodePortals(front);
3748 Mod_Q1BSP_RecursiveNodePortals(back);
3750 portalpointsbufferoffset -= 6*MAX_PORTALPOINTS;
3753 static void Mod_Q1BSP_MakePortals(void)
3755 Mem_ExpandableArray_NewArray(&portalarray, loadmodel->mempool, sizeof(portal_t), 1020*1024/sizeof(portal_t));
3756 portalpointsbufferoffset = 0;
3757 portalpointsbuffersize = 6*MAX_PORTALPOINTS*128;
3758 portalpointsbuffer = (double *)Mem_Alloc(loadmodel->mempool, portalpointsbuffersize * sizeof(*portalpointsbuffer));
3759 Mod_Q1BSP_RecursiveNodePortals(loadmodel->brush.data_nodes + loadmodel->brushq1.hulls[0].firstclipnode);
3760 Mem_Free(portalpointsbuffer);
3761 portalpointsbuffer = NULL;
3762 portalpointsbufferoffset = 0;
3763 portalpointsbuffersize = 0;
3764 Mod_Q1BSP_FinalizePortals();
3765 Mem_ExpandableArray_FreeArray(&portalarray);
3768 //Returns PVS data for a given point
3769 //(note: can return NULL)
3770 static unsigned char *Mod_Q1BSP_GetPVS(dp_model_t *model, const vec3_t p)
3773 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
3775 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
3776 if (((mleaf_t *)node)->clusterindex >= 0)
3777 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3782 static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(dp_model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
3786 float d = PlaneDiff(org, node->plane);
3788 node = node->children[0];
3789 else if (d < -radius)
3790 node = node->children[1];
3793 // go down both sides
3794 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
3795 node = node->children[1];
3798 // if this leaf is in a cluster, accumulate the pvs bits
3799 if (((mleaf_t *)node)->clusterindex >= 0)
3802 unsigned char *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3803 for (i = 0;i < pvsbytes;i++)
3804 pvsbuffer[i] |= pvs[i];
3808 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
3809 //of the given point.
3810 static int Mod_Q1BSP_FatPVS(dp_model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength, qboolean merge)
3812 int bytes = model->brush.num_pvsclusterbytes;
3813 bytes = min(bytes, pvsbufferlength);
3814 if (r_novis.integer || r_trippy.integer || !model->brush.num_pvsclusters || !Mod_Q1BSP_GetPVS(model, org))
3816 memset(pvsbuffer, 0xFF, bytes);
3820 memset(pvsbuffer, 0, bytes);
3821 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
3825 static void Mod_Q1BSP_RoundUpToHullSize(dp_model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
3830 VectorSubtract(inmaxs, inmins, size);
3831 if (cmodel->brush.ishlbsp)
3834 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3835 else if (size[0] <= 32)
3837 if (size[2] < 54) // pick the nearest of 36 or 72
3838 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
3840 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
3843 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
3848 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3849 else if (size[0] <= 32)
3850 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
3852 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
3854 VectorCopy(inmins, outmins);
3855 VectorAdd(inmins, hull->clip_size, outmaxs);
3858 void Mod_CollisionBIH_TraceLineAgainstSurfaces(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask);
3860 void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
3863 sizebuf_t lumpsb[HEADER_LUMPS];
3865 float dist, modelyawradius, modelradius;
3866 msurface_t *surface;
3867 hullinfo_t hullinfo;
3868 int totalstylesurfaces, totalstyles, stylecounts[256], remapstyles[256];
3869 model_brush_lightstyleinfo_t styleinfo[256];
3870 unsigned char *datapointer;
3873 MSG_InitReadBuffer(&sb, (unsigned char *)buffer, (unsigned char *)bufferend - (unsigned char *)buffer);
3875 mod->type = mod_brushq1;
3877 mod->brush.ishlbsp = false;
3878 mod->brush.isbsp2rmqe = false;
3879 mod->brush.isbsp2 = false;
3880 mod->brush.isq2bsp = false;
3881 mod->brush.isq3bsp = false;
3882 mod->brush.skymasking = true;
3883 i = MSG_ReadLittleLong(&sb);
3887 mod->modeldatatypestring = "Q1BSP";
3890 mod->brush.ishlbsp = true;
3891 mod->modeldatatypestring = "HLBSP";
3893 case ('2' + 'P' * 256 + 'S' * 65536 + 'B' * 16777216):
3894 mod->brush.isbsp2 = true;
3895 mod->brush.isbsp2rmqe = true; // like bsp2 except leaf/node bounds are 16bit (unexpanded)
3896 mod->modeldatatypestring = "Q1BSP2rmqe";
3898 case ('B' + 'S' * 256 + 'P' * 65536 + '2' * 16777216):
3899 mod->brush.isbsp2 = true;
3900 mod->modeldatatypestring = "Q1BSP2";
3903 mod->modeldatatypestring = "Unknown BSP";
3904 Host_Error("Mod_Q1BSP_Load: %s has wrong version number %i: supported versions are 29 (Quake), 30 (Half-Life), \"BSP2\" or \"2PSB\" (rmqe)", mod->name, i);
3908 // fill in hull info
3909 VectorClear (hullinfo.hullsizes[0][0]);
3910 VectorClear (hullinfo.hullsizes[0][1]);
3911 if (mod->brush.ishlbsp)
3913 hullinfo.filehulls = 4;
3914 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
3915 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
3916 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
3917 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
3918 VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
3919 VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
3923 hullinfo.filehulls = 4;
3924 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
3925 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
3926 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
3927 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
3931 for (i = 0; i < HEADER_LUMPS; i++)
3933 int offset = MSG_ReadLittleLong(&sb);
3934 int size = MSG_ReadLittleLong(&sb);
3935 if (offset < 0 || offset + size > sb.cursize)
3936 Host_Error("Mod_Q1BSP_Load: %s has invalid lump %i (offset %i, size %i, file size %i)\n", mod->name, i, offset, size, (int)sb.cursize);
3937 MSG_InitReadBuffer(&lumpsb[i], sb.data + offset, size);
3940 mod->soundfromcenter = true;
3941 mod->TraceBox = Mod_Q1BSP_TraceBox;
3942 mod->TraceLine = Mod_Q1BSP_TraceLine;
3943 mod->TracePoint = Mod_Q1BSP_TracePoint;
3944 mod->PointSuperContents = Mod_Q1BSP_PointSuperContents;
3945 mod->TraceLineAgainstSurfaces = Mod_Q1BSP_TraceLineAgainstSurfaces;
3946 mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
3947 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3948 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3949 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
3950 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
3951 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
3952 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
3953 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
3954 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
3955 mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
3956 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
3957 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3958 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3959 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
3960 mod->Draw = R_Q1BSP_Draw;
3961 mod->DrawDepth = R_Q1BSP_DrawDepth;
3962 mod->DrawDebug = R_Q1BSP_DrawDebug;
3963 mod->DrawPrepass = R_Q1BSP_DrawPrepass;
3964 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
3965 mod->CompileShadowMap = R_Q1BSP_CompileShadowMap;
3966 mod->DrawShadowMap = R_Q1BSP_DrawShadowMap;
3967 mod->DrawLight = R_Q1BSP_DrawLight;
3971 mod->brush.qw_md4sum = 0;
3972 mod->brush.qw_md4sum2 = 0;
3973 for (i = 0;i < HEADER_LUMPS;i++)
3976 if (i == LUMP_ENTITIES)
3978 temp = Com_BlockChecksum(lumpsb[i].data, lumpsb[i].cursize);
3979 mod->brush.qw_md4sum ^= LittleLong(temp);
3980 if (i == LUMP_VISIBILITY || i == LUMP_LEAFS || i == LUMP_NODES)
3982 mod->brush.qw_md4sum2 ^= LittleLong(temp);
3985 Mod_Q1BSP_LoadEntities(&lumpsb[LUMP_ENTITIES]);
3986 Mod_Q1BSP_LoadVertexes(&lumpsb[LUMP_VERTEXES]);
3987 Mod_Q1BSP_LoadEdges(&lumpsb[LUMP_EDGES]);
3988 Mod_Q1BSP_LoadSurfedges(&lumpsb[LUMP_SURFEDGES]);
3989 Mod_Q1BSP_LoadTextures(&lumpsb[LUMP_TEXTURES]);
3990 Mod_Q1BSP_LoadLighting(&lumpsb[LUMP_LIGHTING]);
3991 Mod_Q1BSP_LoadPlanes(&lumpsb[LUMP_PLANES]);
3992 Mod_Q1BSP_LoadTexinfo(&lumpsb[LUMP_TEXINFO]);
3993 Mod_Q1BSP_LoadFaces(&lumpsb[LUMP_FACES]);
3994 Mod_Q1BSP_LoadLeaffaces(&lumpsb[LUMP_MARKSURFACES]);
3995 Mod_Q1BSP_LoadVisibility(&lumpsb[LUMP_VISIBILITY]);
3996 // load submodels before leafs because they contain the number of vis leafs
3997 Mod_Q1BSP_LoadSubmodels(&lumpsb[LUMP_MODELS], &hullinfo);
3998 Mod_Q1BSP_LoadLeafs(&lumpsb[LUMP_LEAFS]);
3999 Mod_Q1BSP_LoadNodes(&lumpsb[LUMP_NODES]);
4000 Mod_Q1BSP_LoadClipnodes(&lumpsb[LUMP_CLIPNODES], &hullinfo);
4002 for (i = 0; i < HEADER_LUMPS; i++)
4003 if (lumpsb[i].readcount != lumpsb[i].cursize && i != LUMP_TEXTURES && i != LUMP_LIGHTING)
4004 Host_Error("Lump %i incorrectly loaded (readcount %i, size %i)\n", i, lumpsb[i].readcount, lumpsb[i].cursize);
4006 // check if the map supports transparent water rendering
4007 loadmodel->brush.supportwateralpha = Mod_Q1BSP_CheckWaterAlphaSupport();
4009 // we don't need the compressed pvs data anymore
4010 if (mod->brushq1.data_compressedpvs)
4011 Mem_Free(mod->brushq1.data_compressedpvs);
4012 mod->brushq1.data_compressedpvs = NULL;
4013 mod->brushq1.num_compressedpvs = 0;
4015 Mod_Q1BSP_MakeHull0();
4016 if (mod_bsp_portalize.integer)
4017 Mod_Q1BSP_MakePortals();
4019 mod->numframes = 2; // regular and alternate animation
4022 if (loadmodel->brush.numsubmodels)
4023 loadmodel->brush.submodels = (dp_model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
4025 // LadyHavoc: to clear the fog around the original quake submodel code, I
4027 // first of all, some background info on the submodels:
4028 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
4029 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
4030 // now the weird for loop itself:
4031 // the loop functions in an odd way, on each iteration it sets up the
4032 // current 'mod' model (which despite the confusing code IS the model of
4033 // the number i), at the end of the loop it duplicates the model to become
4034 // the next submodel, and loops back to set up the new submodel.
4036 // LadyHavoc: now the explanation of my sane way (which works identically):
4037 // set up the world model, then on each submodel copy from the world model
4038 // and set up the submodel with the respective model info.
4039 totalstylesurfaces = 0;
4041 for (i = 0;i < mod->brush.numsubmodels;i++)
4043 memset(stylecounts, 0, sizeof(stylecounts));
4044 for (k = 0;k < mod->brushq1.submodels[i].numfaces;k++)
4046 surface = mod->data_surfaces + mod->brushq1.submodels[i].firstface + k;
4047 for (j = 0;j < MAXLIGHTMAPS;j++)
4048 stylecounts[surface->lightmapinfo->styles[j]]++;
4050 for (k = 0;k < 255;k++)
4054 totalstylesurfaces += stylecounts[k];
4057 datapointer = (unsigned char *)Mem_Alloc(mod->mempool, mod->num_surfaces * sizeof(int) + totalstyles * sizeof(model_brush_lightstyleinfo_t) + totalstylesurfaces * sizeof(int *));
4058 for (i = 0;i < mod->brush.numsubmodels;i++)
4060 // LadyHavoc: this code was originally at the end of this loop, but
4061 // has been transformed to something more readable at the start here.
4066 // duplicate the basic information
4067 dpsnprintf(name, sizeof(name), "*%i", i);
4068 mod = Mod_FindName(name, loadmodel->name);
4069 // copy the base model to this one
4071 // rename the clone back to its proper name
4072 strlcpy(mod->name, name, sizeof(mod->name));
4073 mod->brush.parentmodel = loadmodel;
4074 // textures and memory belong to the main model
4075 mod->texturepool = NULL;
4076 mod->mempool = NULL;
4077 mod->brush.GetPVS = NULL;
4078 mod->brush.FatPVS = NULL;
4079 mod->brush.BoxTouchingPVS = NULL;
4080 mod->brush.BoxTouchingLeafPVS = NULL;
4081 mod->brush.BoxTouchingVisibleLeafs = NULL;
4082 mod->brush.FindBoxClusters = NULL;
4083 mod->brush.LightPoint = NULL;
4084 mod->brush.AmbientSoundLevelsForPoint = NULL;
4087 mod->brush.submodel = i;
4089 if (loadmodel->brush.submodels)
4090 loadmodel->brush.submodels[i] = mod;
4092 bm = &mod->brushq1.submodels[i];
4094 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
4095 for (j=1 ; j<MAX_MAP_HULLS ; j++)
4097 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
4098 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
4101 mod->firstmodelsurface = bm->firstface;
4102 mod->nummodelsurfaces = bm->numfaces;
4104 // set node/leaf parents for this submodel
4105 Mod_Q1BSP_LoadNodes_RecursiveSetParent(mod->brush.data_nodes + mod->brushq1.hulls[0].firstclipnode, NULL);
4107 // this has to occur after hull info has been set, as it uses Mod_Q1BSP_PointSuperContents
4108 Mod_Q1BSP_AssignNoShadowSkySurfaces(mod);
4110 // make the model surface list (used by shadowing/lighting)
4111 mod->sortedmodelsurfaces = (int *)datapointer;datapointer += mod->nummodelsurfaces * sizeof(int);
4112 Mod_MakeSortedSurfaces(mod);
4114 // copy the submodel bounds, then enlarge the yaw and rotated bounds according to radius
4115 // (previously this code measured the radius of the vertices of surfaces in the submodel, but that broke submodels that contain only CLIP brushes, which do not produce surfaces)
4116 VectorCopy(bm->mins, mod->normalmins);
4117 VectorCopy(bm->maxs, mod->normalmaxs);
4118 dist = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
4119 modelyawradius = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
4120 modelyawradius = dist*dist+modelyawradius*modelyawradius;
4121 modelradius = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
4122 modelradius = modelyawradius + modelradius * modelradius;
4123 modelyawradius = sqrt(modelyawradius);
4124 modelradius = sqrt(modelradius);
4125 mod->yawmins[0] = mod->yawmins[1] = -modelyawradius;
4126 mod->yawmins[2] = mod->normalmins[2];
4127 mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius;
4128 mod->yawmaxs[2] = mod->normalmaxs[2];
4129 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
4130 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
4131 mod->radius = modelradius;
4132 mod->radius2 = modelradius * modelradius;
4134 // this gets altered below if sky or water is used
4135 mod->DrawSky = NULL;
4136 mod->DrawAddWaterPlanes = NULL;
4138 // scan surfaces for sky and water and flag the submodel as possessing these features or not
4139 // build lightstyle lists for quick marking of dirty lightmaps when lightstyles flicker
4140 if (mod->nummodelsurfaces)
4142 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
4143 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
4145 if (j < mod->nummodelsurfaces)
4146 mod->DrawSky = R_Q1BSP_DrawSky;
4148 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
4149 if (surface->texture->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
4151 if (j < mod->nummodelsurfaces)
4152 mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
4154 // build lightstyle update chains
4155 // (used to rapidly mark lightmapupdateflags on many surfaces
4156 // when d_lightstylevalue changes)
4157 memset(stylecounts, 0, sizeof(stylecounts));
4158 for (k = 0;k < mod->nummodelsurfaces;k++)
4160 surface = mod->data_surfaces + mod->firstmodelsurface + k;
4161 for (j = 0;j < MAXLIGHTMAPS;j++)
4162 stylecounts[surface->lightmapinfo->styles[j]]++;
4164 mod->brushq1.num_lightstyles = 0;
4165 for (k = 0;k < 255;k++)
4169 styleinfo[mod->brushq1.num_lightstyles].style = k;
4170 styleinfo[mod->brushq1.num_lightstyles].value = 0;
4171 styleinfo[mod->brushq1.num_lightstyles].numsurfaces = 0;
4172 styleinfo[mod->brushq1.num_lightstyles].surfacelist = (int *)datapointer;datapointer += stylecounts[k] * sizeof(int);
4173 remapstyles[k] = mod->brushq1.num_lightstyles;
4174 mod->brushq1.num_lightstyles++;
4177 for (k = 0;k < mod->nummodelsurfaces;k++)
4179 surface = mod->data_surfaces + mod->firstmodelsurface + k;
4180 for (j = 0;j < MAXLIGHTMAPS;j++)
4182 if (surface->lightmapinfo->styles[j] != 255)
4184 int r = remapstyles[surface->lightmapinfo->styles[j]];
4185 styleinfo[r].surfacelist[styleinfo[r].numsurfaces++] = mod->firstmodelsurface + k;
4189 mod->brushq1.data_lightstyleinfo = (model_brush_lightstyleinfo_t *)datapointer;datapointer += mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t);
4190 memcpy(mod->brushq1.data_lightstyleinfo, styleinfo, mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t));
4194 // LadyHavoc: empty submodel(lacrima.bsp has such a glitch)
4195 Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
4197 //mod->brushq1.num_visleafs = bm->visleafs;
4199 // build a Bounding Interval Hierarchy for culling triangles in light rendering
4200 Mod_MakeCollisionBIH(mod, true, &mod->render_bih);
4202 if (mod_q1bsp_polygoncollisions.integer)
4204 mod->collision_bih = mod->render_bih;
4205 // point traces and contents checks still use the bsp tree
4206 mod->TraceLine = Mod_CollisionBIH_TraceLine;
4207 mod->TraceBox = Mod_CollisionBIH_TraceBox;
4208 mod->TraceBrush = Mod_CollisionBIH_TraceBrush;
4209 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLineAgainstSurfaces;
4212 // generate VBOs and other shared data before cloning submodels
4216 Mod_Q1BSP_LoadMapBrushes();
4217 //Mod_Q1BSP_ProcessLightList();
4221 Con_DPrintf("Stats for q1bsp model \"%s\": %i faces, %i nodes, %i leafs, %i visleafs, %i visleafportals, mesh: %i vertices, %i triangles, %i surfaces\n", loadmodel->name, loadmodel->num_surfaces, loadmodel->brush.num_nodes, loadmodel->brush.num_leafs, mod->brush.num_pvsclusters, loadmodel->brush.num_portals, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->num_surfaces);
4224 int Mod_Q2BSP_SuperContentsFromNativeContents(int nativecontents)
4226 int supercontents = 0;
4227 if (nativecontents & CONTENTSQ2_SOLID)
4228 supercontents |= SUPERCONTENTS_SOLID;
4229 if (nativecontents & CONTENTSQ2_WATER)
4230 supercontents |= SUPERCONTENTS_WATER;
4231 if (nativecontents & CONTENTSQ2_SLIME)
4232 supercontents |= SUPERCONTENTS_SLIME;
4233 if (nativecontents & CONTENTSQ2_LAVA)
4234 supercontents |= SUPERCONTENTS_LAVA;
4235 if (nativecontents & CONTENTSQ2_MONSTER)
4236 supercontents |= SUPERCONTENTS_BODY;
4237 if (nativecontents & CONTENTSQ2_DEADMONSTER)
4238 supercontents |= SUPERCONTENTS_CORPSE;
4239 if (nativecontents & CONTENTSQ2_PLAYERCLIP)
4240 supercontents |= SUPERCONTENTS_PLAYERCLIP;
4241 if (nativecontents & CONTENTSQ2_MONSTERCLIP)
4242 supercontents |= SUPERCONTENTS_MONSTERCLIP;
4243 if (!(nativecontents & CONTENTSQ2_TRANSLUCENT))
4244 supercontents |= SUPERCONTENTS_OPAQUE;
4245 return supercontents;
4248 int Mod_Q2BSP_NativeContentsFromSuperContents(int supercontents)
4250 int nativecontents = 0;
4251 if (supercontents & SUPERCONTENTS_SOLID)
4252 nativecontents |= CONTENTSQ2_SOLID;
4253 if (supercontents & SUPERCONTENTS_WATER)
4254 nativecontents |= CONTENTSQ2_WATER;
4255 if (supercontents & SUPERCONTENTS_SLIME)
4256 nativecontents |= CONTENTSQ2_SLIME;
4257 if (supercontents & SUPERCONTENTS_LAVA)
4258 nativecontents |= CONTENTSQ2_LAVA;
4259 if (supercontents & SUPERCONTENTS_BODY)
4260 nativecontents |= CONTENTSQ2_MONSTER;
4261 if (supercontents & SUPERCONTENTS_CORPSE)
4262 nativecontents |= CONTENTSQ2_DEADMONSTER;
4263 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
4264 nativecontents |= CONTENTSQ2_PLAYERCLIP;
4265 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
4266 nativecontents |= CONTENTSQ2_MONSTERCLIP;
4267 if (!(supercontents & SUPERCONTENTS_OPAQUE))
4268 nativecontents |= CONTENTSQ2_TRANSLUCENT;
4269 return nativecontents;
4272 static void Mod_Q2BSP_LoadVisibility(sizebuf_t *sb)
4275 loadmodel->brushq1.num_compressedpvs = 0;
4276 loadmodel->brushq1.data_compressedpvs = NULL;
4277 loadmodel->brush.num_pvsclusters = 0;
4278 loadmodel->brush.num_pvsclusterbytes = 0;
4279 loadmodel->brush.data_pvsclusters = NULL;
4284 count = MSG_ReadLittleLong(sb);
4285 loadmodel->brush.num_pvsclusters = count;
4286 loadmodel->brush.num_pvsclusterbytes = (count+7)>>3;
4287 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, count*loadmodel->brush.num_pvsclusterbytes);
4288 for (i = 0;i < count;i++)
4290 int pvsofs = MSG_ReadLittleLong(sb);
4291 /*int phsofs = */MSG_ReadLittleLong(sb);
4292 // decompress the vis data for this cluster
4293 // (note this accesses the underlying data store of sb, which is kind of evil)
4294 Mod_Q1BSP_DecompressVis(sb->data + pvsofs, sb->data + sb->cursize, loadmodel->brush.data_pvsclusters + i * loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.data_pvsclusters + (i+1) * loadmodel->brush.num_pvsclusterbytes);
4296 // hush the loading error check later - we had to do random access on this lump, so we didn't read to the end
4297 sb->readcount = sb->cursize;
4300 static void Mod_Q2BSP_LoadNodes(sizebuf_t *sb)
4302 int i, j, count, p, child[2];
4304 int structsize = 28;
4306 if (sb->cursize % structsize)
4307 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
4308 count = sb->cursize / structsize;
4310 Host_Error("Mod_Q2BSP_LoadNodes: missing BSP tree in %s",loadmodel->name);
4311 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
4313 loadmodel->brush.data_nodes = out;
4314 loadmodel->brush.num_nodes = count;
4316 for ( i=0 ; i<count ; i++, out++)
4318 p = MSG_ReadLittleLong(sb);
4319 out->plane = loadmodel->brush.data_planes + p;
4320 child[0] = MSG_ReadLittleLong(sb);
4321 child[1] = MSG_ReadLittleLong(sb);
4322 out->mins[0] = MSG_ReadLittleShort(sb);
4323 out->mins[1] = MSG_ReadLittleShort(sb);
4324 out->mins[2] = MSG_ReadLittleShort(sb);
4325 out->maxs[0] = MSG_ReadLittleShort(sb);
4326 out->maxs[1] = MSG_ReadLittleShort(sb);
4327 out->maxs[2] = MSG_ReadLittleShort(sb);
4328 out->firstsurface = (unsigned short)MSG_ReadLittleShort(sb);
4329 out->numsurfaces = (unsigned short)MSG_ReadLittleShort(sb);
4330 if (out->firstsurface + out->numsurfaces > (unsigned int)loadmodel->num_surfaces)
4332 Con_Printf("Mod_Q2BSP_LoadNodes: invalid surface index range %i+%i (file has only %i surfaces)\n", out->firstsurface, out->numsurfaces, loadmodel->num_surfaces);
4333 out->firstsurface = 0;
4334 out->numsurfaces = 0;
4336 for (j=0 ; j<2 ; j++)
4341 if (p < loadmodel->brush.num_nodes)
4342 out->children[j] = loadmodel->brush.data_nodes + p;
4345 Con_Printf("Mod_Q2BSP_LoadNodes: invalid node index %i (file has only %i nodes)\n", p, loadmodel->brush.num_nodes);
4346 // map it to the solid leaf
4347 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
4352 // get leaf index as a positive value starting at 0 (-1 becomes 0, -2 becomes 1, etc)
4354 if (p < loadmodel->brush.num_leafs)
4355 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + p);
4358 Con_Printf("Mod_Q2BSP_LoadNodes: invalid leaf index %i (file has only %i leafs)\n", p, loadmodel->brush.num_leafs);
4359 // map it to the solid leaf
4360 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
4366 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
4369 static void Mod_Q2BSP_LoadTexinfo(sizebuf_t *sb)
4373 int structsize = 76;
4374 int maxtextures = 1024; // hardcoded limit of quake2 engine, so we may as well use it as an upper bound
4375 char filename[MAX_QPATH];
4377 if (sb->cursize % structsize)
4378 Host_Error("Mod_Q2BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
4379 count = sb->cursize / structsize;
4380 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4381 loadmodel->brushq1.texinfo = out;
4382 loadmodel->brushq1.numtexinfo = count;
4383 loadmodel->num_texturesperskin = 0;
4384 loadmodel->data_textures = (texture_t*)Mem_Alloc(loadmodel->mempool, maxtextures * sizeof(texture_t));
4386 for (i = 0;i < count;i++, out++)
4389 for (k = 0;k < 2;k++)
4390 for (j = 0;j < 4;j++)
4391 out->vecs[k][j] = MSG_ReadLittleFloat(sb);
4393 out->q2flags = MSG_ReadLittleLong(sb);
4394 out->q2value = MSG_ReadLittleLong(sb);
4395 MSG_ReadBytes(sb, 32, (unsigned char*)out->q2texture);
4396 out->q2texture[31] = 0; // make absolutely sure it is terminated
4397 out->q2nexttexinfo = MSG_ReadLittleLong(sb);
4399 // find an existing match for the texture if possible
4400 dpsnprintf(filename, sizeof(filename), "textures/%s.wal", out->q2texture);
4401 for (j = 0;j < loadmodel->num_texturesperskin;j++)
4402 if (!strcmp(filename, loadmodel->data_textures[j].name)
4403 && out->q2flags == loadmodel->data_textures[j].q2flags
4404 && out->q2value == loadmodel->data_textures[j].q2value)
4406 // if we don't find the texture, store the new texture
4407 if (j == loadmodel->num_texturesperskin)
4409 if (loadmodel->num_texturesperskin < maxtextures)
4411 texture_t *tx = loadmodel->data_textures + j;
4412 int q2flags = out->q2flags;
4413 unsigned char *walfile = NULL;
4414 fs_offset_t walfilesize = 0;
4415 Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, tx, filename, true, true, TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL);
4416 // now read the .wal file to get metadata (even if a .tga was overriding it, we still need the wal data)
4417 walfile = FS_LoadFile(filename, tempmempool, true, &walfilesize);
4421 LoadWAL_GetMetadata(walfile, (int)walfilesize, &w, &h, NULL, NULL, &tx->q2contents, NULL);
4431 tx->q2flags = out->q2flags;
4432 tx->q2value = out->q2value;
4433 // also modify the texture to have the correct contents and such based on flags
4434 // note that we create multiple texture_t structures if q2flags differs
4435 if (q2flags & Q2SURF_LIGHT)
4437 // doesn't mean anything to us
4439 if (q2flags & Q2SURF_SLICK)
4441 // would be nice to support...
4443 if (q2flags & Q2SURF_SKY)
4445 // sky is a rather specific thing
4446 q2flags &= ~Q2SURF_NODRAW; // quake2 had a slightly different meaning than we have in mind here...
4447 tx->basematerialflags = MATERIALFLAG_SKY;
4448 tx->supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP | SUPERCONTENTS_OPAQUE;
4449 tx->surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
4451 if (q2flags & Q2SURF_WARP)
4453 // we use a scroll instead of a warp
4454 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_FULLBRIGHT;
4455 // if it's also transparent, we can enable the WATERSHADER
4456 // but we do not set the WATERALPHA flag because we don't
4457 // want to honor r_wateralpha in q2bsp
4458 // (it would go against the artistic intent)
4459 if (q2flags & (Q2SURF_TRANS33 | Q2SURF_TRANS66))
4460 tx->basematerialflags |= MATERIALFLAG_WATERSHADER;
4462 if (q2flags & Q2SURF_TRANS33)
4464 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED;
4465 tx->basealpha = 1.0f / 3.0f;
4466 tx->supercontents &= ~SUPERCONTENTS_OPAQUE;
4467 if (tx->q2contents & Q2CONTENTS_SOLID)
4468 tx->q2contents = (tx->q2contents & ~Q2CONTENTS_SOLID) | Q2CONTENTS_WINDOW;
4470 if (q2flags & Q2SURF_TRANS66)
4472 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED;
4473 tx->basealpha = 2.0f / 3.0f;
4474 tx->supercontents &= ~SUPERCONTENTS_OPAQUE;
4475 if (tx->q2contents & Q2CONTENTS_SOLID)
4476 tx->q2contents = (tx->q2contents & ~Q2CONTENTS_SOLID) | Q2CONTENTS_WINDOW;
4478 if ((q2flags & Q2SURF_FLOWING) && tx->materialshaderpass != NULL)
4480 tx->materialshaderpass->tcmods[0].tcmod = Q3TCMOD_SCROLL;
4481 if (q2flags & Q2SURF_WARP)
4482 tx->materialshaderpass->tcmods[0].parms[0] = -0.5f;
4484 tx->materialshaderpass->tcmods[0].parms[0] = -1.6f;
4485 tx->materialshaderpass->tcmods[0].parms[1] = 0.0f;
4487 if (q2flags & Q2SURF_ALPHATEST)
4489 // KMQUAKE2 and other modded engines added this flag for lit alpha tested surfaces
4490 tx->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
4492 else if (q2flags & (Q2SURF_TRANS33 | Q2SURF_TRANS66 | Q2SURF_WARP))
4494 if (!mod_q2bsp_littransparentsurfaces.integer)
4495 tx->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
4497 if (q2flags & Q2SURF_NODRAW)
4499 tx->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
4501 if (tx->q2contents & (Q2CONTENTS_TRANSLUCENT | Q2CONTENTS_MONSTERCLIP | Q2CONTENTS_PLAYERCLIP))
4502 tx->q2contents |= Q2CONTENTS_DETAIL;
4503 if (!(tx->q2contents & (Q2CONTENTS_SOLID | Q2CONTENTS_WINDOW | Q2CONTENTS_AUX | Q2CONTENTS_LAVA | Q2CONTENTS_SLIME | Q2CONTENTS_WATER | Q2CONTENTS_MIST | Q2CONTENTS_PLAYERCLIP | Q2CONTENTS_MONSTERCLIP | Q2CONTENTS_MIST)))
4504 tx->q2contents |= Q2CONTENTS_SOLID;
4505 if (tx->q2flags & (Q2SURF_HINT | Q2SURF_SKIP))
4507 tx->supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(tx->q2contents);
4508 // set the current values to the base values
4509 tx->currentframe = tx;
4510 tx->currentskinframe = tx->materialshaderpass != NULL ? tx->materialshaderpass->skinframes[0] : NULL;
4511 tx->currentmaterialflags = tx->basematerialflags;
4512 loadmodel->num_texturesperskin++;
4513 loadmodel->num_textures = loadmodel->num_texturesperskin;
4517 Con_Printf("Mod_Q2BSP_LoadTexinfo: max textures reached (%i)\n", maxtextures);
4518 j = 0; // use first texture and give up
4521 // store the index we found for this texture
4522 out->textureindex = j;
4525 // realloc the textures array now that we know how many we actually need
4526 loadmodel->data_textures = (texture_t*)Mem_Realloc(loadmodel->mempool, loadmodel->data_textures, loadmodel->num_texturesperskin * sizeof(texture_t));
4528 // now assemble the texture chains
4529 // if we encounter the textures out of order, the later ones won't mark the earlier ones in a sequence, so the earlier
4530 for (i = 0, out = loadmodel->brushq1.texinfo;i < count;i++, out++)
4533 texture_t *t = loadmodel->data_textures + out->textureindex;
4534 t->currentframe = t; // fix the reallocated pointer
4536 // if this is not animated, skip it
4537 // if this is already processed, skip it (part of an existing sequence)
4538 if (out->q2nexttexinfo == 0 || t->animated)
4541 // store the array of frames to use
4542 t->animated = 2; // q2bsp animation
4543 t->anim_total[0] = 0;
4544 t->anim_total[1] = 0;
4545 // gather up to 10 frames (we don't support more)
4546 for (j = i;j >= 0 && t->anim_total[0] < (int)(sizeof(t->anim_frames[0])/sizeof(t->anim_frames[0][0]));j = loadmodel->brushq1.texinfo[j].q2nexttexinfo)
4548 // detect looping and stop there
4549 if (t->anim_total[0] && loadmodel->brushq1.texinfo[j].textureindex == out->textureindex)
4551 t->anim_frames[0][t->anim_total[0]++] = &loadmodel->data_textures[loadmodel->brushq1.texinfo[j].textureindex];
4553 // we could look for the +a sequence here if this is the +0 sequence,
4554 // but it seems that quake2 did not implement that (even though the
4555 // files exist in the baseq2 content)
4557 // write the frame sequence to all the textures involved (just like
4558 // in the q1bsp loader)
4560 // note that this can overwrite the rest of the sequence - so if the
4561 // start of a sequence is found later than the other parts of the
4562 // sequence, it will go back and rewrite them correctly.
4563 for (k = 0;k < t->anim_total[0];k++)
4565 texture_t *txk = t->anim_frames[0][k];
4566 txk->animated = t->animated;
4567 txk->anim_total[0] = t->anim_total[0];
4568 for (l = 0;l < t->anim_total[0];l++)
4569 txk->anim_frames[0][l] = t->anim_frames[0][l];
4574 static void Mod_Q2BSP_LoadLighting(sizebuf_t *sb)
4576 // LadyHavoc: this fits exactly the same format that we use in .lit files
4577 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize);
4578 MSG_ReadBytes(sb, sb->cursize, loadmodel->brushq1.lightdata);
4581 static void Mod_Q2BSP_LoadLeafs(sizebuf_t *sb)
4584 int i, j, count, firstmarksurface, nummarksurfaces, firstmarkbrush, nummarkbrushes;
4585 int structsize = 28;
4587 if (sb->cursize % structsize)
4588 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
4589 count = sb->cursize / structsize;
4590 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
4592 loadmodel->brush.data_leafs = out;
4593 loadmodel->brush.num_leafs = count;
4595 // FIXME: this function could really benefit from some error checking
4596 for ( i=0 ; i<count ; i++, out++)
4598 out->contents = MSG_ReadLittleLong(sb);
4599 out->clusterindex = MSG_ReadLittleShort(sb);
4600 out->areaindex = MSG_ReadLittleShort(sb);
4601 out->mins[0] = MSG_ReadLittleShort(sb);
4602 out->mins[1] = MSG_ReadLittleShort(sb);
4603 out->mins[2] = MSG_ReadLittleShort(sb);
4604 out->maxs[0] = MSG_ReadLittleShort(sb);
4605 out->maxs[1] = MSG_ReadLittleShort(sb);
4606 out->maxs[2] = MSG_ReadLittleShort(sb);
4608 firstmarksurface = (unsigned short)MSG_ReadLittleShort(sb);
4609 nummarksurfaces = (unsigned short)MSG_ReadLittleShort(sb);
4610 firstmarkbrush = (unsigned short)MSG_ReadLittleShort(sb);
4611 nummarkbrushes = (unsigned short)MSG_ReadLittleShort(sb);
4613 for (j = 0;j < 4;j++)
4614 out->ambient_sound_level[j] = 0;
4616 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
4618 Con_Print("Mod_Q2BSP_LoadLeafs: invalid clusterindex\n");
4619 out->clusterindex = -1;
4622 if (firstmarksurface >= 0 && firstmarksurface + nummarksurfaces <= loadmodel->brush.num_leafsurfaces)
4624 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + firstmarksurface;
4625 out->numleafsurfaces = nummarksurfaces;
4629 Con_Printf("Mod_Q2BSP_LoadLeafs: invalid leafsurface range %i:%i outside range %i:%i\n", firstmarksurface, firstmarksurface+nummarksurfaces, 0, loadmodel->brush.num_leafsurfaces);
4630 out->firstleafsurface = NULL;
4631 out->numleafsurfaces = 0;
4634 if (firstmarkbrush >= 0 && firstmarkbrush + nummarkbrushes <= loadmodel->brush.num_leafbrushes)
4636 out->firstleafbrush = loadmodel->brush.data_leafbrushes + firstmarkbrush;
4637 out->numleafbrushes = nummarkbrushes;
4641 Con_Printf("Mod_Q2BSP_LoadLeafs: invalid leafbrush range %i:%i outside range %i:%i\n", firstmarkbrush, firstmarkbrush+nummarkbrushes, 0, loadmodel->brush.num_leafbrushes);
4642 out->firstleafbrush = NULL;
4643 out->numleafbrushes = 0;
4648 static void Mod_Q2BSP_LoadLeafBrushes(sizebuf_t *sb)
4653 if (sb->cursize % structsize)
4654 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
4655 loadmodel->brush.num_leafbrushes = sb->cursize / structsize;
4656 loadmodel->brush.data_leafbrushes = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafbrushes * sizeof(int));
4658 for (i = 0;i < loadmodel->brush.num_leafbrushes;i++)
4660 j = (unsigned short) MSG_ReadLittleShort(sb);
4661 if (j >= loadmodel->brush.num_brushes)
4662 Host_Error("Mod_Q1BSP_LoadLeafBrushes: bad brush number");
4663 loadmodel->brush.data_leafbrushes[i] = j;
4667 static void Mod_Q2BSP_LoadBrushSides(sizebuf_t *sb)
4669 q3mbrushside_t *out;
4673 if (sb->cursize % structsize)
4674 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4675 count = sb->cursize / structsize;
4676 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4678 loadmodel->brush.data_brushsides = out;
4679 loadmodel->brush.num_brushsides = count;
4681 for (i = 0;i < count;i++, out++)
4683 n = (unsigned short)MSG_ReadLittleShort(sb);
4684 if (n < 0 || n >= loadmodel->brush.num_planes)
4685 Host_Error("Mod_Q2BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
4686 out->plane = loadmodel->brush.data_planes + n;
4687 n = MSG_ReadLittleShort(sb);
4690 if (n >= loadmodel->brushq1.numtexinfo)
4691 Host_Error("Mod_Q2BSP_LoadBrushSides: invalid texinfo index %i (%i texinfos)", n, loadmodel->brushq1.numtexinfo);
4692 out->texture = loadmodel->data_textures + loadmodel->brushq1.texinfo[n].textureindex;
4696 //Con_Printf("Mod_Q2BSP_LoadBrushSides: brushside %i has texinfo index %i < 0, changing to generic texture!\n", i, n);
4697 out->texture = &mod_q1bsp_texture_solid;
4702 static void Mod_Q2BSP_LoadBrushes(sizebuf_t *sb)
4705 int i, j, firstside, numsides, contents, count, maxplanes, q3surfaceflags, supercontents;
4706 colplanef_t *planes;
4707 int structsize = 12;
4708 qboolean brushmissingtextures;
4709 int numbrushesmissingtextures = 0;
4710 int numcreatedtextures = 0;
4712 if (sb->cursize % structsize)
4713 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4714 count = sb->cursize / structsize;
4715 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4717 loadmodel->brush.data_brushes = out;
4718 loadmodel->brush.num_brushes = count;
4723 for (i = 0; i < count; i++, out++)
4725 firstside = MSG_ReadLittleLong(sb);
4726 numsides = MSG_ReadLittleLong(sb);
4727 contents = MSG_ReadLittleLong(sb);
4728 if (firstside < 0 || firstside + numsides > loadmodel->brush.num_brushsides)
4729 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", firstside, firstside + numsides, loadmodel->brush.num_brushsides);
4731 out->firstbrushside = loadmodel->brush.data_brushsides + firstside;
4732 out->numbrushsides = numsides;
4733 // convert the contents to our values
4734 supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(contents);
4736 // problem: q2bsp brushes have contents but not a texture
4737 // problem: q2bsp brushsides *may* have a texture or may not
4738 // problem: all brushsides and brushes must have a texture for trace_hittexture functionality to work, and the collision code is engineered around this assumption
4739 // solution: nasty hacks
4740 brushmissingtextures = false;
4741 out->texture = NULL;
4742 for (j = 0; j < out->numbrushsides; j++)
4744 if (out->firstbrushside[j].texture == &mod_q1bsp_texture_solid)
4745 brushmissingtextures = true;
4748 // if we can find a matching texture on a brush side we can use it instead of creating one
4749 if (out->firstbrushside[j].texture->supercontents == supercontents)
4750 out->texture = out->firstbrushside[j].texture;
4753 if (brushmissingtextures || out->texture == NULL)
4755 numbrushesmissingtextures++;
4756 // if we didn't find any appropriate texture (matching contents), we'll have to create one
4757 // we could search earlier ones for a matching one but that can be slow
4758 if (out->texture == NULL)
4760 texture_t *validtexture;
4761 validtexture = (texture_t *)Mem_Alloc(loadmodel->mempool, sizeof(texture_t));
4762 dpsnprintf(validtexture->name, sizeof(validtexture->name), "brushcollision%i", numcreatedtextures);
4763 validtexture->surfaceflags = 0;
4764 validtexture->supercontents = supercontents;
4765 numcreatedtextures++;
4766 out->texture = validtexture;
4768 // out->texture now contains a texture with appropriate contents, copy onto any missing sides
4769 for (j = 0; j < out->numbrushsides; j++)
4770 if (out->firstbrushside[j].texture == &mod_q1bsp_texture_solid)
4771 out->firstbrushside[j].texture = out->texture;
4774 // make a colbrush from the brush
4776 // make a list of mplane_t structs to construct a colbrush from
4777 if (maxplanes < out->numbrushsides)
4779 maxplanes = out->numbrushsides;
4782 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
4784 for (j = 0;j < out->numbrushsides;j++)
4786 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4787 planes[j].dist = out->firstbrushside[j].plane->dist;
4788 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
4789 planes[j].texture = out->firstbrushside[j].texture;
4790 q3surfaceflags |= planes[j].q3surfaceflags;
4792 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents, q3surfaceflags, out->texture, true);
4794 // this whole loop can take a while (e.g. on redstarrepublic4)
4795 CL_KeepaliveMessage(false);
4799 if (numcreatedtextures)
4800 Con_DPrintf("Mod_Q2BSP_LoadBrushes: %i brushes own sides that lack textures or have differing contents from the brush, %i textures have been created to describe these contents.\n", numbrushesmissingtextures, numcreatedtextures);
4803 static void Mod_Q2BSP_LoadPOP(sizebuf_t *sb)
4805 // this is probably a "proof of purchase" lump of some sort, it seems to be 0 size in most bsp files (but not q2dm1.bsp for instance)
4806 sb->readcount = sb->cursize;
4809 static void Mod_Q2BSP_LoadAreas(sizebuf_t *sb)
4811 // we currently don't use areas, they represent closable doors as vis blockers
4812 sb->readcount = sb->cursize;
4815 static void Mod_Q2BSP_LoadAreaPortals(sizebuf_t *sb)
4817 // we currently don't use areas, they represent closable doors as vis blockers
4818 sb->readcount = sb->cursize;
4821 static void Mod_Q2BSP_LoadSubmodels(sizebuf_t *sb)
4825 int structsize = 48;
4827 if (sb->cursize % structsize)
4828 Host_Error ("Mod_Q2BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
4830 count = sb->cursize / structsize;
4831 out = (mmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
4833 loadmodel->brushq1.submodels = out;
4834 loadmodel->brush.numsubmodels = count;
4836 // this is identical to the q1 submodel structure except for having 1 hull
4837 for (i = 0; i < count; i++, out++)
4839 // spread out the mins / maxs by a pixel
4840 out->mins[0] = MSG_ReadLittleFloat(sb) - 1;
4841 out->mins[1] = MSG_ReadLittleFloat(sb) - 1;
4842 out->mins[2] = MSG_ReadLittleFloat(sb) - 1;
4843 out->maxs[0] = MSG_ReadLittleFloat(sb) + 1;
4844 out->maxs[1] = MSG_ReadLittleFloat(sb) + 1;
4845 out->maxs[2] = MSG_ReadLittleFloat(sb) + 1;
4846 out->origin[0] = MSG_ReadLittleFloat(sb);
4847 out->origin[1] = MSG_ReadLittleFloat(sb);
4848 out->origin[2] = MSG_ReadLittleFloat(sb);
4849 out->headnode[0] = MSG_ReadLittleLong(sb);
4850 out->firstface = MSG_ReadLittleLong(sb);
4851 out->numfaces = MSG_ReadLittleLong(sb);
4855 static void Mod_Q2BSP_FindSubmodelBrushRange_r(dp_model_t *mod, mnode_t *node, int *first, int *last)
4861 Mod_Q2BSP_FindSubmodelBrushRange_r(mod, node->children[0], first, last);
4862 node = node->children[1];
4864 leaf = (mleaf_t*)node;
4865 for (i = 0;i < leaf->numleafbrushes;i++)
4867 int brushnum = leaf->firstleafbrush[i];
4868 if (*first > brushnum)
4870 if (*last < brushnum)
4875 static void Mod_Q2BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
4878 sizebuf_t lumpsb[Q2HEADER_LUMPS];
4880 float dist, modelyawradius, modelradius;
4881 msurface_t *surface;
4882 int totalstylesurfaces, totalstyles, stylecounts[256], remapstyles[256];
4883 model_brush_lightstyleinfo_t styleinfo[256];
4884 unsigned char *datapointer;
4887 MSG_InitReadBuffer(&sb, (unsigned char *)buffer, (unsigned char *)bufferend - (unsigned char *)buffer);
4889 mod->type = mod_brushq2;
4891 mod->brush.ishlbsp = false;
4892 mod->brush.isbsp2rmqe = false;
4893 mod->brush.isbsp2 = false;
4894 mod->brush.isq2bsp = true; // q1bsp loaders mostly work but we need a few tweaks
4895 mod->brush.isq3bsp = false;
4896 mod->brush.skymasking = true;
4897 mod->modeldatatypestring = "Q2BSP";
4899 i = MSG_ReadLittleLong(&sb);
4900 if (i != Q2BSPMAGIC)
4901 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
4903 i = MSG_ReadLittleLong(&sb);
4904 if (i != Q2BSPVERSION)
4905 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
4908 for (i = 0; i < Q2HEADER_LUMPS; i++)
4910 int offset = MSG_ReadLittleLong(&sb);
4911 int size = MSG_ReadLittleLong(&sb);
4912 if (offset < 0 || offset + size > sb.cursize)
4913 Host_Error("Mod_Q2BSP_Load: %s has invalid lump %i (offset %i, size %i, file size %i)\n", mod->name, i, offset, size, (int)sb.cursize);
4914 MSG_InitReadBuffer(&lumpsb[i], sb.data + offset, size);
4917 mod->soundfromcenter = true;
4918 mod->TracePoint = Mod_CollisionBIH_TracePoint;
4919 mod->TraceLine = Mod_CollisionBIH_TraceLine;
4920 mod->TraceBox = Mod_CollisionBIH_TraceBox;
4921 mod->TraceBrush = Mod_CollisionBIH_TraceBrush;
4922 mod->PointSuperContents = Mod_CollisionBIH_PointSuperContents;
4923 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
4924 mod->brush.TraceLineOfSight = Mod_Q3BSP_TraceLineOfSight;
4925 mod->brush.SuperContentsFromNativeContents = Mod_Q2BSP_SuperContentsFromNativeContents;
4926 mod->brush.NativeContentsFromSuperContents = Mod_Q2BSP_NativeContentsFromSuperContents;
4927 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
4928 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
4929 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
4930 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
4931 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
4932 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
4933 mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
4934 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
4935 mod->brush.AmbientSoundLevelsForPoint = NULL;
4936 mod->brush.RoundUpToHullSize = NULL;
4937 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
4938 mod->Draw = R_Q1BSP_Draw;
4939 mod->DrawDepth = R_Q1BSP_DrawDepth;
4940 mod->DrawDebug = R_Q1BSP_DrawDebug;
4941 mod->DrawPrepass = R_Q1BSP_DrawPrepass;
4942 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
4943 mod->CompileShadowMap = R_Q1BSP_CompileShadowMap;
4944 mod->DrawShadowMap = R_Q1BSP_DrawShadowMap;
4945 mod->DrawLight = R_Q1BSP_DrawLight;
4949 mod->brush.qw_md4sum = 0;
4950 mod->brush.qw_md4sum2 = 0;
4951 for (i = 0;i < Q2HEADER_LUMPS;i++)
4954 if (i == Q2LUMP_ENTITIES)
4956 temp = Com_BlockChecksum(lumpsb[i].data, lumpsb[i].cursize);
4957 mod->brush.qw_md4sum ^= LittleLong(temp);
4958 if (i == Q2LUMP_VISIBILITY || i == Q2LUMP_LEAFS || i == Q2LUMP_NODES)
4960 mod->brush.qw_md4sum2 ^= LittleLong(temp);
4963 // many of these functions are identical to Q1 loaders, so we use those where possible
4964 Mod_Q1BSP_LoadEntities(&lumpsb[Q2LUMP_ENTITIES]);
4965 Mod_Q1BSP_LoadVertexes(&lumpsb[Q2LUMP_VERTEXES]);
4966 Mod_Q1BSP_LoadEdges(&lumpsb[Q2LUMP_EDGES]);
4967 Mod_Q1BSP_LoadSurfedges(&lumpsb[Q2LUMP_SURFEDGES]);
4968 Mod_Q2BSP_LoadLighting(&lumpsb[Q2LUMP_LIGHTING]);
4969 Mod_Q1BSP_LoadPlanes(&lumpsb[Q2LUMP_PLANES]);
4970 Mod_Q2BSP_LoadTexinfo(&lumpsb[Q2LUMP_TEXINFO]);
4971 Mod_Q2BSP_LoadBrushSides(&lumpsb[Q2LUMP_BRUSHSIDES]);
4972 Mod_Q2BSP_LoadBrushes(&lumpsb[Q2LUMP_BRUSHES]);
4973 Mod_Q1BSP_LoadFaces(&lumpsb[Q2LUMP_FACES]);
4974 Mod_Q1BSP_LoadLeaffaces(&lumpsb[Q2LUMP_LEAFFACES]);
4975 Mod_Q2BSP_LoadLeafBrushes(&lumpsb[Q2LUMP_LEAFBRUSHES]);
4976 Mod_Q2BSP_LoadVisibility(&lumpsb[Q2LUMP_VISIBILITY]);
4977 Mod_Q2BSP_LoadPOP(&lumpsb[Q2LUMP_POP]);
4978 Mod_Q2BSP_LoadAreas(&lumpsb[Q2LUMP_AREAS]);
4979 Mod_Q2BSP_LoadAreaPortals(&lumpsb[Q2LUMP_AREAPORTALS]);
4980 Mod_Q2BSP_LoadLeafs(&lumpsb[Q2LUMP_LEAFS]);
4981 Mod_Q2BSP_LoadNodes(&lumpsb[Q2LUMP_NODES]);
4982 Mod_Q2BSP_LoadSubmodels(&lumpsb[Q2LUMP_MODELS]);
4984 for (i = 0; i < Q2HEADER_LUMPS; i++)
4985 if (lumpsb[i].readcount != lumpsb[i].cursize)
4986 Host_Error("Lump %i incorrectly loaded (readcount %i, size %i)\n", i, lumpsb[i].readcount, lumpsb[i].cursize);
4988 // we don't actually set MATERIALFLAG_WATERALPHA on anything, so this
4989 // doesn't enable the cvar, just indicates that transparent water is OK
4990 loadmodel->brush.supportwateralpha = true;
4992 // we don't need the compressed pvs data anymore
4993 if (mod->brushq1.data_compressedpvs)
4994 Mem_Free(mod->brushq1.data_compressedpvs);
4995 mod->brushq1.data_compressedpvs = NULL;
4996 mod->brushq1.num_compressedpvs = 0;
4998 // the MakePortals code works fine on the q2bsp data as well
4999 if (mod_bsp_portalize.integer)
5000 Mod_Q1BSP_MakePortals();
5002 mod->numframes = 0; // q2bsp animations are kind of special, frame is unbounded...
5005 if (loadmodel->brush.numsubmodels)
5006 loadmodel->brush.submodels = (dp_model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
5008 totalstylesurfaces = 0;
5010 for (i = 0;i < mod->brush.numsubmodels;i++)
5012 memset(stylecounts, 0, sizeof(stylecounts));
5013 for (k = 0;k < mod->brushq1.submodels[i].numfaces;k++)
5015 surface = mod->data_surfaces + mod->brushq1.submodels[i].firstface + k;
5016 for (j = 0;j < MAXLIGHTMAPS;j++)
5017 stylecounts[surface->lightmapinfo->styles[j]]++;
5019 for (k = 0;k < 255;k++)
5023 totalstylesurfaces += stylecounts[k];
5026 datapointer = (unsigned char *)Mem_Alloc(mod->mempool, mod->num_surfaces * sizeof(int) + totalstyles * sizeof(model_brush_lightstyleinfo_t) + totalstylesurfaces * sizeof(int *));
5027 // set up the world model, then on each submodel copy from the world model
5028 // and set up the submodel with the respective model info.
5030 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
5032 mnode_t *rootnode = NULL;
5033 int firstbrush = loadmodel->brush.num_brushes, lastbrush = 0;
5037 // duplicate the basic information
5038 dpsnprintf(name, sizeof(name), "*%i", i);
5039 mod = Mod_FindName(name, loadmodel->name);
5040 // copy the base model to this one
5042 // rename the clone back to its proper name
5043 strlcpy(mod->name, name, sizeof(mod->name));
5044 mod->brush.parentmodel = loadmodel;
5045 // textures and memory belong to the main model
5046 mod->texturepool = NULL;
5047 mod->mempool = NULL;
5048 mod->brush.GetPVS = NULL;
5049 mod->brush.FatPVS = NULL;
5050 mod->brush.BoxTouchingPVS = NULL;
5051 mod->brush.BoxTouchingLeafPVS = NULL;
5052 mod->brush.BoxTouchingVisibleLeafs = NULL;
5053 mod->brush.FindBoxClusters = NULL;
5054 mod->brush.LightPoint = NULL;
5055 mod->brush.AmbientSoundLevelsForPoint = NULL;
5057 mod->brush.submodel = i;
5058 if (loadmodel->brush.submodels)
5059 loadmodel->brush.submodels[i] = mod;
5061 bm = &mod->brushq1.submodels[i];
5063 // we store the headnode (there's only one in Q2BSP) as if it were the first hull
5064 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
5066 mod->firstmodelsurface = bm->firstface;
5067 mod->nummodelsurfaces = bm->numfaces;
5069 // set node/leaf parents for this submodel
5070 // note: if the root of this submodel is a leaf (headnode[0] < 0) then there is nothing to do...
5071 // (this happens in base3.bsp)
5072 if (bm->headnode[0] >= 0)
5073 rootnode = mod->brush.data_nodes + bm->headnode[0];
5075 rootnode = (mnode_t*)(mod->brush.data_leafs + -1 - bm->headnode[0]);
5076 Mod_Q1BSP_LoadNodes_RecursiveSetParent(rootnode, NULL);
5078 // make the model surface list (used by shadowing/lighting)
5079 mod->sortedmodelsurfaces = (int *)datapointer;datapointer += mod->nummodelsurfaces * sizeof(int);
5080 Mod_Q2BSP_FindSubmodelBrushRange_r(mod, rootnode, &firstbrush, &lastbrush);
5081 if (firstbrush <= lastbrush)
5083 mod->firstmodelbrush = firstbrush;
5084 mod->nummodelbrushes = lastbrush + 1 - firstbrush;
5088 mod->firstmodelbrush = 0;
5089 mod->nummodelbrushes = 0;
5091 Mod_MakeSortedSurfaces(mod);
5093 VectorCopy(bm->mins, mod->normalmins);
5094 VectorCopy(bm->maxs, mod->normalmaxs);
5095 dist = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
5096 modelyawradius = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
5097 modelyawradius = dist*dist+modelyawradius*modelyawradius;
5098 modelradius = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
5099 modelradius = modelyawradius + modelradius * modelradius;
5100 modelyawradius = sqrt(modelyawradius);
5101 modelradius = sqrt(modelradius);
5102 mod->yawmins[0] = mod->yawmins[1] = -modelyawradius;
5103 mod->yawmins[2] = mod->normalmins[2];
5104 mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius;
5105 mod->yawmaxs[2] = mod->normalmaxs[2];
5106 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
5107 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
5108 mod->radius = modelradius;
5109 mod->radius2 = modelradius * modelradius;
5111 // this gets altered below if sky or water is used
5112 mod->DrawSky = NULL;
5113 mod->DrawAddWaterPlanes = NULL;
5115 // scan surfaces for sky and water and flag the submodel as possessing these features or not
5116 // build lightstyle lists for quick marking of dirty lightmaps when lightstyles flicker
5117 if (mod->nummodelsurfaces)
5119 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
5120 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
5122 if (j < mod->nummodelsurfaces)
5123 mod->DrawSky = R_Q1BSP_DrawSky;
5125 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
5126 if (surface->texture->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
5128 if (j < mod->nummodelsurfaces)
5129 mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
5131 // build lightstyle update chains
5132 // (used to rapidly mark lightmapupdateflags on many surfaces
5133 // when d_lightstylevalue changes)
5134 memset(stylecounts, 0, sizeof(stylecounts));
5135 for (k = 0;k < mod->nummodelsurfaces;k++)
5137 surface = mod->data_surfaces + mod->firstmodelsurface + k;
5138 for (j = 0;j < MAXLIGHTMAPS;j++)
5139 stylecounts[surface->lightmapinfo->styles[j]]++;
5141 mod->brushq1.num_lightstyles = 0;
5142 for (k = 0;k < 255;k++)
5146 styleinfo[mod->brushq1.num_lightstyles].style = k;
5147 styleinfo[mod->brushq1.num_lightstyles].value = 0;
5148 styleinfo[mod->brushq1.num_lightstyles].numsurfaces = 0;
5149 styleinfo[mod->brushq1.num_lightstyles].surfacelist = (int *)datapointer;datapointer += stylecounts[k] * sizeof(int);
5150 remapstyles[k] = mod->brushq1.num_lightstyles;
5151 mod->brushq1.num_lightstyles++;
5154 for (k = 0;k < mod->nummodelsurfaces;k++)
5156 surface = mod->data_surfaces + mod->firstmodelsurface + k;
5157 for (j = 0;j < MAXLIGHTMAPS;j++)
5159 if (surface->lightmapinfo->styles[j] != 255)
5161 int r = remapstyles[surface->lightmapinfo->styles[j]];
5162 styleinfo[r].surfacelist[styleinfo[r].numsurfaces++] = mod->firstmodelsurface + k;
5166 mod->brushq1.data_lightstyleinfo = (model_brush_lightstyleinfo_t *)datapointer;datapointer += mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t);
5167 memcpy(mod->brushq1.data_lightstyleinfo, styleinfo, mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t));
5171 Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
5173 //mod->brushq1.num_visleafs = bm->visleafs;
5175 // build a Bounding Interval Hierarchy for culling triangles in light rendering
5176 Mod_MakeCollisionBIH(mod, false, &mod->collision_bih);
5178 // build a Bounding Interval Hierarchy for culling brushes in collision detection
5179 Mod_MakeCollisionBIH(mod, true, &mod->render_bih);
5181 // generate VBOs and other shared data before cloning submodels
5187 Con_DPrintf("Stats for q2bsp model \"%s\": %i faces, %i nodes, %i leafs, %i clusters, %i clusterportals, mesh: %i vertices, %i triangles, %i surfaces\n", loadmodel->name, loadmodel->num_surfaces, loadmodel->brush.num_nodes, loadmodel->brush.num_leafs, mod->brush.num_pvsclusters, loadmodel->brush.num_portals, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->num_surfaces);
5190 static int Mod_Q3BSP_SuperContentsFromNativeContents(int nativecontents);
5191 static int Mod_Q3BSP_NativeContentsFromSuperContents(int supercontents);
5193 static void Mod_Q3BSP_LoadEntities(lump_t *l)
5196 char key[128], value[MAX_INPUTLINE];
5198 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
5199 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
5200 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
5203 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen + 1);
5204 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
5205 loadmodel->brush.entities[l->filelen] = 0;
5206 data = loadmodel->brush.entities;
5207 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
5208 // VorteX: q3map2 FS-R generates tangentspace deluxemaps for q3bsp and sets 'deluxeMaps' key
5209 loadmodel->brushq3.deluxemapping = false;
5210 if (data && COM_ParseToken_Simple(&data, false, false, true) && com_token[0] == '{')
5214 if (!COM_ParseToken_Simple(&data, false, false, true))
5216 if (com_token[0] == '}')
5217 break; // end of worldspawn
5218 if (com_token[0] == '_')
5219 strlcpy(key, com_token + 1, sizeof(key));
5221 strlcpy(key, com_token, sizeof(key));
5222 while (key[strlen(key)-1] == ' ') // remove trailing spaces
5223 key[strlen(key)-1] = 0;
5224 if (!COM_ParseToken_Simple(&data, false, false, true))
5226 strlcpy(value, com_token, sizeof(value));
5227 if (!strcasecmp("gridsize", key)) // this one is case insensitive to 100% match q3map2
5229 #if _MSC_VER >= 1400
5230 #define sscanf sscanf_s
5233 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
5234 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
5236 VectorSet(v, 64, 64, 128);
5237 if(sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) != 3)
5238 Con_Printf("Mod_Q3BSP_LoadEntities: funny gridsize \"%s\" in %s, interpreting as \"%f %f %f\" to match q3map2's parsing\n", value, loadmodel->name, v[0], v[1], v[2]);
5239 if (v[0] != 0 && v[1] != 0 && v[2] != 0)
5240 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
5243 else if (!strcmp("deluxeMaps", key))
5245 if (!strcmp(com_token, "1"))
5247 loadmodel->brushq3.deluxemapping = true;
5248 loadmodel->brushq3.deluxemapping_modelspace = true;
5250 else if (!strcmp(com_token, "2"))
5252 loadmodel->brushq3.deluxemapping = true;
5253 loadmodel->brushq3.deluxemapping_modelspace = false;
5260 static void Mod_Q3BSP_LoadTextures(lump_t *l)
5266 in = (q3dtexture_t *)(mod_base + l->fileofs);
5267 if (l->filelen % sizeof(*in))
5268 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
5269 count = l->filelen / sizeof(*in);
5270 out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5272 loadmodel->data_textures = out;
5273 loadmodel->num_textures = count;
5274 loadmodel->num_texturesperskin = loadmodel->num_textures;
5276 for (i = 0;i < count;i++)
5278 out[i].surfaceflags = LittleLong(in[i].surfaceflags);
5279 out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(LittleLong(in[i].contents));
5280 Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, out + i, in[i].name, true, true, TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL);
5281 // restore the surfaceflags and supercontents
5282 out[i].surfaceflags = LittleLong(in[i].surfaceflags);
5283 out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(LittleLong(in[i].contents));
5287 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
5293 in = (q3dplane_t *)(mod_base + l->fileofs);
5294 if (l->filelen % sizeof(*in))
5295 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
5296 count = l->filelen / sizeof(*in);
5297 out = (mplane_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5299 loadmodel->brush.data_planes = out;
5300 loadmodel->brush.num_planes = count;
5302 for (i = 0;i < count;i++, in++, out++)
5304 out->normal[0] = LittleFloat(in->normal[0]);
5305 out->normal[1] = LittleFloat(in->normal[1]);
5306 out->normal[2] = LittleFloat(in->normal[2]);
5307 out->dist = LittleFloat(in->dist);
5312 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
5315 q3mbrushside_t *out;
5318 in = (q3dbrushside_t *)(mod_base + l->fileofs);
5319 if (l->filelen % sizeof(*in))
5320 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
5321 count = l->filelen / sizeof(*in);
5322 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5324 loadmodel->brush.data_brushsides = out;
5325 loadmodel->brush.num_brushsides = count;
5327 for (i = 0;i < count;i++, in++, out++)
5329 n = LittleLong(in->planeindex);
5330 if (n < 0 || n >= loadmodel->brush.num_planes)
5331 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5332 out->plane = loadmodel->brush.data_planes + n;
5333 n = LittleLong(in->textureindex);
5334 if (n < 0 || n >= loadmodel->num_textures)
5335 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
5336 out->texture = loadmodel->data_textures + n;
5340 static void Mod_Q3BSP_LoadBrushSides_IG(lump_t *l)
5342 q3dbrushside_ig_t *in;
5343 q3mbrushside_t *out;
5346 in = (q3dbrushside_ig_t *)(mod_base + l->fileofs);
5347 if (l->filelen % sizeof(*in))
5348 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
5349 count = l->filelen / sizeof(*in);
5350 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5352 loadmodel->brush.data_brushsides = out;
5353 loadmodel->brush.num_brushsides = count;
5355 for (i = 0;i < count;i++, in++, out++)
5357 n = LittleLong(in->planeindex);
5358 if (n < 0 || n >= loadmodel->brush.num_planes)
5359 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5360 out->plane = loadmodel->brush.data_planes + n;
5361 n = LittleLong(in->textureindex);
5362 if (n < 0 || n >= loadmodel->num_textures)
5363 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
5364 out->texture = loadmodel->data_textures + n;
5368 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
5372 int i, j, n, c, count, maxplanes, q3surfaceflags;
5373 colplanef_t *planes;
5375 in = (q3dbrush_t *)(mod_base + l->fileofs);
5376 if (l->filelen % sizeof(*in))
5377 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
5378 count = l->filelen / sizeof(*in);
5379 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5381 loadmodel->brush.data_brushes = out;
5382 loadmodel->brush.num_brushes = count;
5387 for (i = 0;i < count;i++, in++, out++)
5389 n = LittleLong(in->firstbrushside);
5390 c = LittleLong(in->numbrushsides);
5391 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
5392 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", n, n + c, loadmodel->brush.num_brushsides);
5393 out->firstbrushside = loadmodel->brush.data_brushsides + n;
5394 out->numbrushsides = c;
5395 n = LittleLong(in->textureindex);
5396 if (n < 0 || n >= loadmodel->num_textures)
5397 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
5398 out->texture = loadmodel->data_textures + n;
5400 // make a list of mplane_t structs to construct a colbrush from
5401 if (maxplanes < out->numbrushsides)
5403 maxplanes = out->numbrushsides;
5406 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
5409 for (j = 0;j < out->numbrushsides;j++)
5411 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
5412 planes[j].dist = out->firstbrushside[j].plane->dist;
5413 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
5414 planes[j].texture = out->firstbrushside[j].texture;
5415 q3surfaceflags |= planes[j].q3surfaceflags;
5417 // make the colbrush from the planes
5418 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents, q3surfaceflags, out->texture, true);
5420 // this whole loop can take a while (e.g. on redstarrepublic4)
5421 CL_KeepaliveMessage(false);
5427 static void Mod_Q3BSP_LoadEffects(lump_t *l)
5433 in = (q3deffect_t *)(mod_base + l->fileofs);
5434 if (l->filelen % sizeof(*in))
5435 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
5436 count = l->filelen / sizeof(*in);
5437 out = (q3deffect_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5439 loadmodel->brushq3.data_effects = out;
5440 loadmodel->brushq3.num_effects = count;
5442 for (i = 0;i < count;i++, in++, out++)
5444 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
5445 n = LittleLong(in->brushindex);
5446 if (n >= loadmodel->brush.num_brushes)
5448 Con_Printf("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes), setting to -1\n", n, loadmodel->brush.num_brushes);
5451 out->brushindex = n;
5452 out->unknown = LittleLong(in->unknown);
5456 static void Mod_Q3BSP_LoadVertices(lump_t *l)
5461 in = (q3dvertex_t *)(mod_base + l->fileofs);
5462 if (l->filelen % sizeof(*in))
5463 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
5464 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
5465 loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 3 + 2 + 2 + 4)));
5466 loadmodel->brushq3.data_normal3f = loadmodel->brushq3.data_vertex3f + count * 3;
5467 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_normal3f + count * 3;
5468 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
5469 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
5471 for (i = 0;i < count;i++, in++)
5473 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
5474 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
5475 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
5476 loadmodel->brushq3.data_normal3f[i * 3 + 0] = LittleFloat(in->normal3f[0]);
5477 loadmodel->brushq3.data_normal3f[i * 3 + 1] = LittleFloat(in->normal3f[1]);
5478 loadmodel->brushq3.data_normal3f[i * 3 + 2] = LittleFloat(in->normal3f[2]);
5479 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
5480 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
5481 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
5482 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
5483 // svector/tvector are calculated later in face loading
5484 if(mod_q3bsp_sRGBlightmaps.integer)
5486 // if lightmaps are sRGB, vertex colors are sRGB too, so we need to linearize them
5487 // note: when this is in use, lightmap color 128 is no longer neutral, but "sRGB half power" is
5488 // working like this may be odd, but matches q3map2 -gamma 2.2
5489 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5491 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
5492 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
5493 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
5494 // we fix the brightness consistently via lightmapscale
5498 loadmodel->brushq3.data_color4f[i * 4 + 0] = Image_LinearFloatFromsRGB(in->color4ub[0]);
5499 loadmodel->brushq3.data_color4f[i * 4 + 1] = Image_LinearFloatFromsRGB(in->color4ub[1]);
5500 loadmodel->brushq3.data_color4f[i * 4 + 2] = Image_LinearFloatFromsRGB(in->color4ub[2]);
5505 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5507 loadmodel->brushq3.data_color4f[i * 4 + 0] = Image_sRGBFloatFromLinear_Lightmap(in->color4ub[0]);
5508 loadmodel->brushq3.data_color4f[i * 4 + 1] = Image_sRGBFloatFromLinear_Lightmap(in->color4ub[1]);
5509 loadmodel->brushq3.data_color4f[i * 4 + 2] = Image_sRGBFloatFromLinear_Lightmap(in->color4ub[2]);
5513 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
5514 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
5515 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
5518 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
5519 if(in->color4ub[0] != 255 || in->color4ub[1] != 255 || in->color4ub[2] != 255)
5520 loadmodel->lit = true;
5524 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
5530 in = (int *)(mod_base + l->fileofs);
5531 if (l->filelen % sizeof(int[3]))
5532 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
5533 count = l->filelen / sizeof(*in);
5535 if(!loadmodel->brushq3.num_vertices)
5538 Con_Printf("Mod_Q3BSP_LoadTriangles: %s has triangles but no vertexes, broken compiler, ignoring problem\n", loadmodel->name);
5539 loadmodel->brushq3.num_triangles = 0;
5543 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5544 loadmodel->brushq3.num_triangles = count / 3;
5545 loadmodel->brushq3.data_element3i = out;
5547 for (i = 0;i < count;i++, in++, out++)
5549 *out = LittleLong(*in);
5550 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
5552 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
5558 static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
5560 q3dlightmap_t *input_pointer;
5578 int mergedrowsxcolumns;
5583 unsigned char *mergedpixels;
5584 unsigned char *mergeddeluxepixels;
5585 unsigned char *mergebuf;
5586 char mapname[MAX_QPATH];
5588 unsigned char *inpixels[10000]; // max count q3map2 can output (it uses 4 digits)
5591 // defaults for q3bsp
5598 loadmodel->brushq3.lightmapsize = 128;
5600 if (cls.state == ca_dedicated)
5603 if(mod_q3bsp_nolightmaps.integer)
5609 // prefer internal LMs for compatibility (a BSP contains no info on whether external LMs exist)
5610 if (developer_loading.integer)
5611 Con_Printf("Using internal lightmaps\n");
5612 input_pointer = (q3dlightmap_t *)(mod_base + l->fileofs);
5613 if (l->filelen % sizeof(*input_pointer))
5614 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
5615 count = l->filelen / sizeof(*input_pointer);
5616 for(i = 0; i < count; ++i)
5617 inpixels[i] = input_pointer[i].rgb;
5621 // no internal lightmaps
5622 // try external lightmaps
5623 if (developer_loading.integer)
5624 Con_Printf("Using external lightmaps\n");
5625 FS_StripExtension(loadmodel->name, mapname, sizeof(mapname));
5626 inpixels[0] = loadimagepixelsbgra(va(vabuf, sizeof(vabuf), "%s/lm_%04d", mapname, 0), false, false, false, NULL);
5630 // using EXTERNAL lightmaps instead
5631 if(image_width != (int) CeilPowerOf2(image_width) || image_width != image_height)
5633 Mem_Free(inpixels[0]);
5634 Host_Error("Mod_Q3BSP_LoadLightmaps: invalid external lightmap size in %s",loadmodel->name);
5644 for(count = 1; ; ++count)
5646 inpixels[count] = loadimagepixelsbgra(va(vabuf, sizeof(vabuf), "%s/lm_%04d", mapname, count), false, false, false, NULL);
5647 if(!inpixels[count])
5648 break; // we got all of them
5649 if(image_width != size || image_height != size)
5651 Mem_Free(inpixels[count]);
5652 inpixels[count] = NULL;
5653 Con_Printf("Mod_Q3BSP_LoadLightmaps: mismatched lightmap size in %s - external lightmap %s/lm_%04d does not match earlier ones\n", loadmodel->name, mapname, count);
5659 loadmodel->brushq3.lightmapsize = size;
5660 loadmodel->brushq3.num_originallightmaps = count;
5662 // now check the surfaces to see if any of them index an odd numbered
5663 // lightmap, if so this is not a deluxemapped bsp file
5665 // also check what lightmaps are actually used, because q3map2 sometimes
5666 // (always?) makes an unused one at the end, which
5667 // q3map2 sometimes (or always?) makes a second blank lightmap for no
5668 // reason when only one lightmap is used, which can throw off the
5669 // deluxemapping detection method, so check 2-lightmap bsp's specifically
5670 // to see if the second lightmap is blank, if so it is not deluxemapped.
5671 // VorteX: autodetect only if previous attempt to find "deluxeMaps" key
5672 // in Mod_Q3BSP_LoadEntities was failed
5673 if (!loadmodel->brushq3.deluxemapping)
5675 loadmodel->brushq3.deluxemapping = !(count & 1);
5676 loadmodel->brushq3.deluxemapping_modelspace = true;
5678 if (loadmodel->brushq3.deluxemapping)
5680 int facecount = faceslump->filelen / sizeof(q3dface_t);
5681 q3dface_t *faces = (q3dface_t *)(mod_base + faceslump->fileofs);
5682 for (i = 0;i < facecount;i++)
5684 j = LittleLong(faces[i].lightmapindex);
5687 endlightmap = max(endlightmap, j + 1);
5688 if ((j & 1) || j + 1 >= count)
5690 loadmodel->brushq3.deluxemapping = false;
5697 // q3map2 sometimes (or always?) makes a second blank lightmap for no
5698 // reason when only one lightmap is used, which can throw off the
5699 // deluxemapping detection method, so check 2-lightmap bsp's specifically
5700 // to see if the second lightmap is blank, if so it is not deluxemapped.
5702 // further research has shown q3map2 sometimes creates a deluxemap and two
5703 // blank lightmaps, which must be handled properly as well
5704 if (endlightmap == 1 && count > 1)
5707 for (i = 0;i < size*size;i++)
5709 if (c[bytesperpixel*i + rgbmap[0]])
5711 if (c[bytesperpixel*i + rgbmap[1]])
5713 if (c[bytesperpixel*i + rgbmap[2]])
5718 // all pixels in the unused lightmap were black...
5719 loadmodel->brushq3.deluxemapping = false;
5724 Con_DPrintf("%s is %sdeluxemapped\n", loadmodel->name, loadmodel->brushq3.deluxemapping ? "" : "not ");
5726 // figure out what the most reasonable merge power is within limits
5728 // find the appropriate NxN dimensions to merge to, to avoid wasted space
5729 realcount = count >> (int)loadmodel->brushq3.deluxemapping;
5731 // figure out how big the merged texture has to be
5732 mergegoal = 128<<bound(0, mod_q3bsp_lightmapmergepower.integer, 6);
5733 mergegoal = bound(size, mergegoal, (int)vid.maxtexturesize_2d);
5734 while (mergegoal > size && mergegoal * mergegoal / 4 >= size * size * realcount)
5736 mergedwidth = mergegoal;
5737 mergedheight = mergegoal;
5738 // choose non-square size (2x1 aspect) if only half the space is used;
5739 // this really only happens when the entire set fits in one texture, if
5740 // there are multiple textures, we don't worry about shrinking the last
5741 // one to fit, because the driver prefers the same texture size on
5742 // consecutive draw calls...
5743 if (mergedwidth * mergedheight / 2 >= size*size*realcount)
5746 loadmodel->brushq3.num_lightmapmergedwidthpower = 0;
5747 loadmodel->brushq3.num_lightmapmergedheightpower = 0;
5748 while (mergedwidth > size<<loadmodel->brushq3.num_lightmapmergedwidthpower)
5749 loadmodel->brushq3.num_lightmapmergedwidthpower++;
5750 while (mergedheight > size<<loadmodel->brushq3.num_lightmapmergedheightpower)
5751 loadmodel->brushq3.num_lightmapmergedheightpower++;
5752 loadmodel->brushq3.num_lightmapmergedwidthheightdeluxepower = loadmodel->brushq3.num_lightmapmergedwidthpower + loadmodel->brushq3.num_lightmapmergedheightpower + (loadmodel->brushq3.deluxemapping ? 1 : 0);
5754 powerx = loadmodel->brushq3.num_lightmapmergedwidthpower;
5755 powery = loadmodel->brushq3.num_lightmapmergedheightpower;
5756 powerxy = powerx+powery;
5757 powerdxy = loadmodel->brushq3.deluxemapping + powerxy;
5759 mergedcolumns = 1 << powerx;
5760 mergedrows = 1 << powery;
5761 mergedrowsxcolumns = 1 << powerxy;
5763 loadmodel->brushq3.num_mergedlightmaps = (realcount + (1 << powerxy) - 1) >> powerxy;
5764 loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
5765 if (loadmodel->brushq3.deluxemapping)
5766 loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
5768 // allocate a texture pool if we need it
5769 if (loadmodel->texturepool == NULL)
5770 loadmodel->texturepool = R_AllocTexturePool();
5772 mergedpixels = (unsigned char *) Mem_Alloc(tempmempool, mergedwidth * mergedheight * 4);
5773 mergeddeluxepixels = loadmodel->brushq3.deluxemapping ? (unsigned char *) Mem_Alloc(tempmempool, mergedwidth * mergedheight * 4) : NULL;
5774 for (i = 0;i < count;i++)
5776 // figure out which merged lightmap texture this fits into
5777 realindex = i >> (int)loadmodel->brushq3.deluxemapping;
5778 lightmapindex = i >> powerdxy;
5780 // choose the destination address
5781 mergebuf = (loadmodel->brushq3.deluxemapping && (i & 1)) ? mergeddeluxepixels : mergedpixels;
5782 mergebuf += 4 * (realindex & (mergedcolumns-1))*size + 4 * ((realindex >> powerx) & (mergedrows-1))*mergedwidth*size;
5783 if ((i & 1) == 0 || !loadmodel->brushq3.deluxemapping)
5784 Con_DPrintf("copying original lightmap %i (%ix%i) to %i (at %i,%i)\n", i, size, size, lightmapindex, (realindex & (mergedcolumns-1))*size, ((realindex >> powerx) & (mergedrows-1))*size);
5786 // convert pixels from RGB or BGRA while copying them into the destination rectangle
5787 for (j = 0;j < size;j++)
5788 for (k = 0;k < size;k++)
5790 mergebuf[(j*mergedwidth+k)*4+0] = inpixels[i][(j*size+k)*bytesperpixel+rgbmap[0]];
5791 mergebuf[(j*mergedwidth+k)*4+1] = inpixels[i][(j*size+k)*bytesperpixel+rgbmap[1]];
5792 mergebuf[(j*mergedwidth+k)*4+2] = inpixels[i][(j*size+k)*bytesperpixel+rgbmap[2]];
5793 mergebuf[(j*mergedwidth+k)*4+3] = 255;
5796 // upload texture if this was the last tile being written to the texture
5797 if (((realindex + 1) & (mergedrowsxcolumns - 1)) == 0 || (realindex + 1) == realcount)
5799 if (loadmodel->brushq3.deluxemapping && (i & 1))
5800 loadmodel->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va(vabuf, sizeof(vabuf), "deluxemap%04i", lightmapindex), mergedwidth, mergedheight, mergeddeluxepixels, TEXTYPE_BGRA, TEXF_FORCELINEAR | (gl_texturecompression_q3bspdeluxemaps.integer ? TEXF_COMPRESS : 0), -1, NULL);
5803 if(mod_q3bsp_sRGBlightmaps.integer)
5806 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5808 t = TEXTYPE_BGRA; // in stupid fallback mode, we upload lightmaps in sRGB form and just fix their brightness
5809 // we fix the brightness consistently via lightmapscale
5812 t = TEXTYPE_SRGB_BGRA; // normally, we upload lightmaps in sRGB form (possibly downconverted to linear)
5813 loadmodel->brushq3.data_lightmaps [lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va(vabuf, sizeof(vabuf), "lightmap%04i", lightmapindex), mergedwidth, mergedheight, mergedpixels, t, TEXF_FORCELINEAR | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), -1, NULL);
5817 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5818 Image_MakesRGBColorsFromLinear_Lightmap(mergedpixels, mergedpixels, mergedwidth * mergedheight);
5819 loadmodel->brushq3.data_lightmaps [lightmapindex] = R_LoadTexture2D(loadmodel->texturepool, va(vabuf, sizeof(vabuf), "lightmap%04i", lightmapindex), mergedwidth, mergedheight, mergedpixels, TEXTYPE_BGRA, TEXF_FORCELINEAR | (gl_texturecompression_q3bsplightmaps.integer ? TEXF_COMPRESS : 0), -1, NULL);
5825 if (mergeddeluxepixels)
5826 Mem_Free(mergeddeluxepixels);
5827 Mem_Free(mergedpixels);
5830 for(i = 0; i < count; ++i)
5831 Mem_Free(inpixels[i]);
5835 static void Mod_Q3BSP_BuildBBoxes(const int *element3i, int num_triangles, const float *vertex3f, float **collisionbbox6f, int *collisionstride, int stride)
5840 *collisionstride = stride;
5843 cnt = (num_triangles + stride - 1) / stride;
5844 *collisionbbox6f = (float *) Mem_Alloc(loadmodel->mempool, sizeof(float[6]) * cnt);
5845 for(j = 0; j < cnt; ++j)
5847 mins = &((*collisionbbox6f)[6 * j + 0]);
5848 maxs = &((*collisionbbox6f)[6 * j + 3]);
5849 for(k = 0; k < stride; ++k)
5851 tri = j * stride + k;
5852 if(tri >= num_triangles)
5854 vert = &(vertex3f[element3i[3 * tri + 0] * 3]);
5855 if(!k || vert[0] < mins[0]) mins[0] = vert[0];
5856 if(!k || vert[1] < mins[1]) mins[1] = vert[1];
5857 if(!k || vert[2] < mins[2]) mins[2] = vert[2];
5858 if(!k || vert[0] > maxs[0]) maxs[0] = vert[0];
5859 if(!k || vert[1] > maxs[1]) maxs[1] = vert[1];
5860 if(!k || vert[2] > maxs[2]) maxs[2] = vert[2];
5861 vert = &(vertex3f[element3i[3 * tri + 1] * 3]);
5862 if(vert[0] < mins[0]) mins[0] = vert[0];
5863 if(vert[1] < mins[1]) mins[1] = vert[1];
5864 if(vert[2] < mins[2]) mins[2] = vert[2];
5865 if(vert[0] > maxs[0]) maxs[0] = vert[0];
5866 if(vert[1] > maxs[1]) maxs[1] = vert[1];
5867 if(vert[2] > maxs[2]) maxs[2] = vert[2];
5868 vert = &(vertex3f[element3i[3 * tri + 2] * 3]);
5869 if(vert[0] < mins[0]) mins[0] = vert[0];
5870 if(vert[1] < mins[1]) mins[1] = vert[1];
5871 if(vert[2] < mins[2]) mins[2] = vert[2];
5872 if(vert[0] > maxs[0]) maxs[0] = vert[0];
5873 if(vert[1] > maxs[1]) maxs[1] = vert[1];
5874 if(vert[2] > maxs[2]) maxs[2] = vert[2];
5879 *collisionbbox6f = NULL;
5882 typedef struct patchtess_s
5886 // Auxiliary data used only by patch loading code in Mod_Q3BSP_LoadFaces
5889 float *originalvertex3f;
5892 #define PATCHTESS_SAME_LODGROUP(a,b) \
5894 (a).lodgroup[0] == (b).lodgroup[0] && \
5895 (a).lodgroup[1] == (b).lodgroup[1] && \
5896 (a).lodgroup[2] == (b).lodgroup[2] && \
5897 (a).lodgroup[3] == (b).lodgroup[3] && \
5898 (a).lodgroup[4] == (b).lodgroup[4] && \
5899 (a).lodgroup[5] == (b).lodgroup[5] \
5902 static void Mod_Q3BSP_LoadFaces(lump_t *l)
5904 q3dface_t *in, *oldin;
5905 msurface_t *out, *oldout;
5906 int i, oldi, j, n, count, invalidelements, patchsize[2], finalwidth, finalheight, xtess, ytess, finalvertices, finaltriangles, firstvertex, firstelement, type, oldnumtriangles, oldnumtriangles2, meshvertices, meshtriangles, collisionvertices, collisiontriangles, numvertices, numtriangles, cxtess, cytess;
5907 float lightmaptcbase[2], lightmaptcscale[2];
5908 //int *originalelement3i;
5909 float *originalvertex3f;
5910 //float *originalsvector3f;
5911 //float *originaltvector3f;
5912 float *originalnormal3f;
5913 float *originalcolor4f;
5914 float *originaltexcoordtexture2f;
5915 float *originaltexcoordlightmap2f;
5916 float *surfacecollisionvertex3f;
5917 int *surfacecollisionelement3i;
5919 patchtess_t *patchtess = NULL;
5920 int patchtesscount = 0;
5923 in = (q3dface_t *)(mod_base + l->fileofs);
5924 if (l->filelen % sizeof(*in))
5925 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
5926 count = l->filelen / sizeof(*in);
5927 out = (msurface_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5929 loadmodel->data_surfaces = out;
5930 loadmodel->num_surfaces = count;
5933 patchtess = (patchtess_t*) Mem_Alloc(tempmempool, count * sizeof(*patchtess));
5941 for (;i < count;i++, in++, out++)
5943 // check face type first
5944 type = LittleLong(in->type);
5945 if (type != Q3FACETYPE_FLAT
5946 && type != Q3FACETYPE_PATCH
5947 && type != Q3FACETYPE_MESH
5948 && type != Q3FACETYPE_FLARE)
5950 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
5954 n = LittleLong(in->textureindex);
5955 if (n < 0 || n >= loadmodel->num_textures)
5957 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
5960 out->texture = loadmodel->data_textures + n;
5961 n = LittleLong(in->effectindex);
5962 if (n < -1 || n >= loadmodel->brushq3.num_effects)
5964 if (developer_extra.integer)
5965 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
5971 out->effect = loadmodel->brushq3.data_effects + n;
5973 if (cls.state != ca_dedicated)
5975 out->lightmaptexture = NULL;
5976 out->deluxemaptexture = r_texture_blanknormalmap;
5977 n = LittleLong(in->lightmapindex);
5980 else if (n >= loadmodel->brushq3.num_originallightmaps)
5982 if(loadmodel->brushq3.num_originallightmaps != 0)
5983 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_originallightmaps);
5988 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n >> loadmodel->brushq3.num_lightmapmergedwidthheightdeluxepower];
5989 if (loadmodel->brushq3.deluxemapping)
5990 out->deluxemaptexture = loadmodel->brushq3.data_deluxemaps[n >> loadmodel->brushq3.num_lightmapmergedwidthheightdeluxepower];
5991 loadmodel->lit = true;
5995 firstvertex = LittleLong(in->firstvertex);
5996 numvertices = LittleLong(in->numvertices);
5997 firstelement = LittleLong(in->firstelement);
5998 numtriangles = LittleLong(in->numelements) / 3;
5999 if (numtriangles * 3 != LittleLong(in->numelements))
6001 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));
6004 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
6006 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);
6009 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
6011 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);
6016 case Q3FACETYPE_FLAT:
6017 case Q3FACETYPE_MESH:
6018 // no processing necessary
6020 case Q3FACETYPE_PATCH:
6021 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
6022 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
6023 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))
6025 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
6028 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
6030 // convert patch to Q3FACETYPE_MESH
6031 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
6032 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
6033 // bound to user settings
6034 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
6035 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
6036 // bound to sanity settings
6037 xtess = bound(0, xtess, 1024);
6038 ytess = bound(0, ytess, 1024);
6040 // lower quality collision patches! Same procedure as before, but different cvars
6041 // convert patch to Q3FACETYPE_MESH
6042 cxtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
6043 cytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
6044 // bound to user settings
6045 cxtess = bound(r_subdivisions_collision_mintess.integer, cxtess, r_subdivisions_collision_maxtess.integer);
6046 cytess = bound(r_subdivisions_collision_mintess.integer, cytess, r_subdivisions_collision_maxtess.integer);
6047 // bound to sanity settings
6048 cxtess = bound(0, cxtess, 1024);
6049 cytess = bound(0, cytess, 1024);
6051 // store it for the LOD grouping step
6052 patchtess[patchtesscount].info.xsize = patchsize[0];
6053 patchtess[patchtesscount].info.ysize = patchsize[1];
6054 patchtess[patchtesscount].info.lods[PATCH_LOD_VISUAL].xtess = xtess;
6055 patchtess[patchtesscount].info.lods[PATCH_LOD_VISUAL].ytess = ytess;
6056 patchtess[patchtesscount].info.lods[PATCH_LOD_COLLISION].xtess = cxtess;
6057 patchtess[patchtesscount].info.lods[PATCH_LOD_COLLISION].ytess = cytess;
6059 patchtess[patchtesscount].surface_id = i;
6060 patchtess[patchtesscount].lodgroup[0] = LittleFloat(in->specific.patch.mins[0]);
6061 patchtess[patchtesscount].lodgroup[1] = LittleFloat(in->specific.patch.mins[1]);
6062 patchtess[patchtesscount].lodgroup[2] = LittleFloat(in->specific.patch.mins[2]);
6063 patchtess[patchtesscount].lodgroup[3] = LittleFloat(in->specific.patch.maxs[0]);
6064 patchtess[patchtesscount].lodgroup[4] = LittleFloat(in->specific.patch.maxs[1]);
6065 patchtess[patchtesscount].lodgroup[5] = LittleFloat(in->specific.patch.maxs[2]);
6066 patchtess[patchtesscount].originalvertex3f = originalvertex3f;
6069 case Q3FACETYPE_FLARE:
6070 if (developer_extra.integer)
6071 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
6075 out->num_vertices = numvertices;
6076 out->num_triangles = numtriangles;
6077 meshvertices += out->num_vertices;
6078 meshtriangles += out->num_triangles;
6081 // Fix patches tesselations so that they make no seams
6085 for(i = 0; i < patchtesscount; ++i)
6087 for(j = i+1; j < patchtesscount; ++j)
6089 if (!PATCHTESS_SAME_LODGROUP(patchtess[i], patchtess[j]))
6092 if (Q3PatchAdjustTesselation(3, &patchtess[i].info, patchtess[i].originalvertex3f, &patchtess[j].info, patchtess[j].originalvertex3f) )
6099 // Calculate resulting number of triangles
6100 collisionvertices = 0;
6101 collisiontriangles = 0;
6102 for(i = 0; i < patchtesscount; ++i)
6104 finalwidth = Q3PatchDimForTess(patchtess[i].info.xsize, patchtess[i].info.lods[PATCH_LOD_VISUAL].xtess);
6105 finalheight = Q3PatchDimForTess(patchtess[i].info.ysize,patchtess[i].info.lods[PATCH_LOD_VISUAL].ytess);
6106 numvertices = finalwidth * finalheight;
6107 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
6109 oldout[patchtess[i].surface_id].num_vertices = numvertices;
6110 oldout[patchtess[i].surface_id].num_triangles = numtriangles;
6111 meshvertices += oldout[patchtess[i].surface_id].num_vertices;
6112 meshtriangles += oldout[patchtess[i].surface_id].num_triangles;
6114 finalwidth = Q3PatchDimForTess(patchtess[i].info.xsize, patchtess[i].info.lods[PATCH_LOD_COLLISION].xtess);
6115 finalheight = Q3PatchDimForTess(patchtess[i].info.ysize,patchtess[i].info.lods[PATCH_LOD_COLLISION].ytess);
6116 numvertices = finalwidth * finalheight;
6117 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
6119 oldout[patchtess[i].surface_id].num_collisionvertices = numvertices;
6120 oldout[patchtess[i].surface_id].num_collisiontriangles = numtriangles;
6121 collisionvertices += oldout[patchtess[i].surface_id].num_collisionvertices;
6122 collisiontriangles += oldout[patchtess[i].surface_id].num_collisiontriangles;
6128 Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true);
6129 if (collisiontriangles)
6131 loadmodel->brush.data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, collisionvertices * sizeof(float[3]));
6132 loadmodel->brush.data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, collisiontriangles * sizeof(int[3]));
6136 collisionvertices = 0;
6137 collisiontriangles = 0;
6138 for (;i < count && meshvertices + out->num_vertices <= loadmodel->surfmesh.num_vertices;i++, in++, out++)
6140 if (out->num_vertices < 3 || out->num_triangles < 1)
6143 type = LittleLong(in->type);
6144 firstvertex = LittleLong(in->firstvertex);
6145 firstelement = LittleLong(in->firstelement);
6146 out->num_firstvertex = meshvertices;
6147 out->num_firsttriangle = meshtriangles;
6148 out->num_firstcollisiontriangle = collisiontriangles;
6151 case Q3FACETYPE_FLAT:
6152 case Q3FACETYPE_MESH:
6153 // no processing necessary, except for lightmap merging
6154 for (j = 0;j < out->num_vertices;j++)
6156 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
6157 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
6158 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
6159 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 0];
6160 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 1];
6161 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 2];
6162 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
6163 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
6164 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
6165 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
6166 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
6167 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
6168 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
6169 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
6171 for (j = 0;j < out->num_triangles*3;j++)
6172 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
6174 case Q3FACETYPE_PATCH:
6175 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
6176 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
6177 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
6178 originalnormal3f = loadmodel->brushq3.data_normal3f + firstvertex * 3;
6179 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
6180 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
6181 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
6183 xtess = ytess = cxtess = cytess = -1;
6184 for(j = 0; j < patchtesscount; ++j)
6185 if(patchtess[j].surface_id == i)
6187 xtess = patchtess[j].info.lods[PATCH_LOD_VISUAL].xtess;
6188 ytess = patchtess[j].info.lods[PATCH_LOD_VISUAL].ytess;
6189 cxtess = patchtess[j].info.lods[PATCH_LOD_COLLISION].xtess;
6190 cytess = patchtess[j].info.lods[PATCH_LOD_COLLISION].ytess;
6195 Con_Printf("ERROR: patch %d isn't preprocessed?!?\n", i);
6196 xtess = ytess = cxtess = cytess = 0;
6199 finalwidth = Q3PatchDimForTess(patchsize[0],xtess); //((patchsize[0] - 1) * xtess) + 1;
6200 finalheight = Q3PatchDimForTess(patchsize[1],ytess); //((patchsize[1] - 1) * ytess) + 1;
6201 finalvertices = finalwidth * finalheight;
6202 oldnumtriangles = finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
6203 type = Q3FACETYPE_MESH;
6204 // generate geometry
6205 // (note: normals are skipped because they get recalculated)
6206 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
6207 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalnormal3f, xtess, ytess);
6208 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
6209 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
6210 Q3PatchTesselateFloat(4, sizeof(float[4]), (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
6211 Q3PatchTriangleElements((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
6213 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);
6215 if (developer_extra.integer)
6217 if (out->num_triangles < finaltriangles)
6218 Con_DPrintf("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);
6220 Con_DPrintf("Mod_Q3BSP_LoadFaces: %ix%i curve subdivided to %i vertices / %i triangles\n", patchsize[0], patchsize[1], out->num_vertices, out->num_triangles);
6222 // q3map does not put in collision brushes for curves... ugh
6223 // build the lower quality collision geometry
6224 finalwidth = Q3PatchDimForTess(patchsize[0],cxtess); //((patchsize[0] - 1) * cxtess) + 1;
6225 finalheight = Q3PatchDimForTess(patchsize[1],cytess); //((patchsize[1] - 1) * cytess) + 1;
6226 finalvertices = finalwidth * finalheight;
6227 oldnumtriangles2 = finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
6229 // legacy collision geometry implementation
6230 out->deprecatedq3data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
6231 out->deprecatedq3data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
6232 out->num_collisionvertices = finalvertices;
6233 out->num_collisiontriangles = finaltriangles;
6234 Q3PatchTesselateFloat(3, sizeof(float[3]), out->deprecatedq3data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, cxtess, cytess);
6235 Q3PatchTriangleElements(out->deprecatedq3data_collisionelement3i, finalwidth, finalheight, 0);
6237 //Mod_SnapVertices(3, out->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), 0.25);
6238 Mod_SnapVertices(3, finalvertices, out->deprecatedq3data_collisionvertex3f, 1);
6240 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(finaltriangles, out->deprecatedq3data_collisionelement3i, out->deprecatedq3data_collisionelement3i, out->deprecatedq3data_collisionvertex3f);
6242 // now optimize the collision mesh by finding triangle bboxes...
6243 Mod_Q3BSP_BuildBBoxes(out->deprecatedq3data_collisionelement3i, out->num_collisiontriangles, out->deprecatedq3data_collisionvertex3f, &out->deprecatedq3data_collisionbbox6f, &out->deprecatedq3num_collisionbboxstride, mod_q3bsp_curves_collisions_stride.integer);
6244 Mod_Q3BSP_BuildBBoxes(loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle, out->num_triangles, loadmodel->surfmesh.data_vertex3f, &out->deprecatedq3data_bbox6f, &out->deprecatedq3num_bboxstride, mod_q3bsp_curves_stride.integer);
6246 // store collision geometry for BIH collision tree
6247 surfacecollisionvertex3f = loadmodel->brush.data_collisionvertex3f + collisionvertices * 3;
6248 surfacecollisionelement3i = loadmodel->brush.data_collisionelement3i + collisiontriangles * 3;
6249 Q3PatchTesselateFloat(3, sizeof(float[3]), surfacecollisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, cxtess, cytess);
6250 Q3PatchTriangleElements(surfacecollisionelement3i, finalwidth, finalheight, collisionvertices);
6251 Mod_SnapVertices(3, finalvertices, surfacecollisionvertex3f, 1);
6253 // remove this once the legacy code is removed
6255 int nc = out->num_collisiontriangles;
6257 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(finaltriangles, surfacecollisionelement3i, surfacecollisionelement3i, loadmodel->brush.data_collisionvertex3f);
6259 if(nc != out->num_collisiontriangles)
6261 Con_Printf("number of collision triangles differs between BIH and BSP. FAIL.\n");
6266 if (developer_extra.integer)
6267 Con_DPrintf("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);
6269 collisionvertices += finalvertices;
6270 collisiontriangles += out->num_collisiontriangles;
6275 meshvertices += out->num_vertices;
6276 meshtriangles += out->num_triangles;
6277 for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
6278 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)
6280 if (invalidelements)
6282 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);
6283 for (j = 0;j < out->num_triangles * 3;j++)
6285 Con_Printf(" %i", (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
6286 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)
6287 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
6291 // calculate a bounding box
6292 VectorClear(out->mins);
6293 VectorClear(out->maxs);
6294 if (out->num_vertices)
6296 if (cls.state != ca_dedicated && out->lightmaptexture)
6298 // figure out which part of the merged lightmap this fits into
6299 int lightmapindex = LittleLong(in->lightmapindex) >> (loadmodel->brushq3.deluxemapping ? 1 : 0);
6300 int mergewidth = R_TextureWidth(out->lightmaptexture) / loadmodel->brushq3.lightmapsize;
6301 int mergeheight = R_TextureHeight(out->lightmaptexture) / loadmodel->brushq3.lightmapsize;
6302 lightmapindex &= mergewidth * mergeheight - 1;
6303 lightmaptcscale[0] = 1.0f / mergewidth;
6304 lightmaptcscale[1] = 1.0f / mergeheight;
6305 lightmaptcbase[0] = (lightmapindex % mergewidth) * lightmaptcscale[0];
6306 lightmaptcbase[1] = (lightmapindex / mergewidth) * lightmaptcscale[1];
6307 // modify the lightmap texcoords to match this region of the merged lightmap
6308 for (j = 0, v = loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex;j < out->num_vertices;j++, v += 2)
6310 v[0] = v[0] * lightmaptcscale[0] + lightmaptcbase[0];
6311 v[1] = v[1] * lightmaptcscale[1] + lightmaptcbase[1];
6314 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->mins);
6315 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->maxs);
6316 for (j = 1, v = (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
6318 out->mins[0] = min(out->mins[0], v[0]);
6319 out->maxs[0] = max(out->maxs[0], v[0]);
6320 out->mins[1] = min(out->mins[1], v[1]);
6321 out->maxs[1] = max(out->maxs[1], v[1]);
6322 out->mins[2] = min(out->mins[2], v[2]);
6323 out->maxs[2] = max(out->maxs[2], v[2]);
6325 out->mins[0] -= 1.0f;
6326 out->mins[1] -= 1.0f;
6327 out->mins[2] -= 1.0f;
6328 out->maxs[0] += 1.0f;
6329 out->maxs[1] += 1.0f;
6330 out->maxs[2] += 1.0f;
6332 // set lightmap styles for consistency with q1bsp
6333 //out->lightmapinfo->styles[0] = 0;
6334 //out->lightmapinfo->styles[1] = 255;
6335 //out->lightmapinfo->styles[2] = 255;
6336 //out->lightmapinfo->styles[3] = 255;
6341 for (;i < count;i++, out++)
6343 if(out->num_vertices && out->num_triangles)
6345 if(out->num_vertices == 0)
6347 Con_Printf("Mod_Q3BSP_LoadFaces: surface %d (texture %s) has no vertices, ignoring\n", i, out->texture ? out->texture->name : "(none)");
6348 if(out->num_triangles == 0)
6349 Con_Printf("Mod_Q3BSP_LoadFaces: surface %d (texture %s) has no triangles, ignoring\n", i, out->texture ? out->texture->name : "(none)");
6351 else if(out->num_triangles == 0)
6352 Con_Printf("Mod_Q3BSP_LoadFaces: surface %d (texture %s, near %f %f %f) has no triangles, ignoring\n", i, out->texture ? out->texture->name : "(none)",
6353 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[0 * 3 + 0],
6354 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[1 * 3 + 0],
6355 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[2 * 3 + 0]);
6358 // for per pixel lighting
6359 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, r_smoothnormals_areaweighting.integer != 0);
6361 // generate ushort elements array if possible
6362 if (loadmodel->surfmesh.data_element3s)
6363 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
6364 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
6366 // free the no longer needed vertex data
6367 loadmodel->brushq3.num_vertices = 0;
6368 if (loadmodel->brushq3.data_vertex3f)
6369 Mem_Free(loadmodel->brushq3.data_vertex3f);
6370 loadmodel->brushq3.data_vertex3f = NULL;
6371 loadmodel->brushq3.data_normal3f = NULL;
6372 loadmodel->brushq3.data_texcoordtexture2f = NULL;
6373 loadmodel->brushq3.data_texcoordlightmap2f = NULL;
6374 loadmodel->brushq3.data_color4f = NULL;
6375 // free the no longer needed triangle data
6376 loadmodel->brushq3.num_triangles = 0;
6377 if (loadmodel->brushq3.data_element3i)
6378 Mem_Free(loadmodel->brushq3.data_element3i);
6379 loadmodel->brushq3.data_element3i = NULL;
6382 Mem_Free(patchtess);
6385 static void Mod_Q3BSP_LoadModels(lump_t *l)
6389 int i, j, n, c, count;
6391 in = (q3dmodel_t *)(mod_base + l->fileofs);
6392 if (l->filelen % sizeof(*in))
6393 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
6394 count = l->filelen / sizeof(*in);
6395 out = (q3dmodel_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6397 loadmodel->brushq3.data_models = out;
6398 loadmodel->brushq3.num_models = count;
6400 for (i = 0;i < count;i++, in++, out++)
6402 for (j = 0;j < 3;j++)
6404 out->mins[j] = LittleFloat(in->mins[j]);
6405 out->maxs[j] = LittleFloat(in->maxs[j]);
6407 n = LittleLong(in->firstface);
6408 c = LittleLong(in->numfaces);
6409 if (n < 0 || n + c > loadmodel->num_surfaces)
6410 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)", n, n + c, loadmodel->num_surfaces);
6413 n = LittleLong(in->firstbrush);
6414 c = LittleLong(in->numbrushes);
6415 if (n < 0 || n + c > loadmodel->brush.num_brushes)
6416 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)", n, n + c, loadmodel->brush.num_brushes);
6417 out->firstbrush = n;
6418 out->numbrushes = c;
6422 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
6428 in = (int *)(mod_base + l->fileofs);
6429 if (l->filelen % sizeof(*in))
6430 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
6431 count = l->filelen / sizeof(*in);
6432 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6434 loadmodel->brush.data_leafbrushes = out;
6435 loadmodel->brush.num_leafbrushes = count;
6437 for (i = 0;i < count;i++, in++, out++)
6439 n = LittleLong(*in);
6440 if (n < 0 || n >= loadmodel->brush.num_brushes)
6441 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)", n, loadmodel->brush.num_brushes);
6446 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
6452 in = (int *)(mod_base + l->fileofs);
6453 if (l->filelen % sizeof(*in))
6454 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
6455 count = l->filelen / sizeof(*in);
6456 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6458 loadmodel->brush.data_leafsurfaces = out;
6459 loadmodel->brush.num_leafsurfaces = count;
6461 for (i = 0;i < count;i++, in++, out++)
6463 n = LittleLong(*in);
6464 if (n < 0 || n >= loadmodel->num_surfaces)
6465 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)", n, loadmodel->num_surfaces);
6470 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
6474 int i, j, n, c, count;
6476 in = (q3dleaf_t *)(mod_base + l->fileofs);
6477 if (l->filelen % sizeof(*in))
6478 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
6479 count = l->filelen / sizeof(*in);
6480 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6482 loadmodel->brush.data_leafs = out;
6483 loadmodel->brush.num_leafs = count;
6485 for (i = 0;i < count;i++, in++, out++)
6489 out->clusterindex = LittleLong(in->clusterindex);
6490 out->areaindex = LittleLong(in->areaindex);
6491 for (j = 0;j < 3;j++)
6493 // yes the mins/maxs are ints
6494 out->mins[j] = LittleLong(in->mins[j]) - 1;
6495 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
6497 n = LittleLong(in->firstleafface);
6498 c = LittleLong(in->numleaffaces);
6499 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
6500 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)", n, n + c, loadmodel->brush.num_leafsurfaces);
6501 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
6502 out->numleafsurfaces = c;
6503 n = LittleLong(in->firstleafbrush);
6504 c = LittleLong(in->numleafbrushes);
6505 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
6506 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)", n, n + c, loadmodel->brush.num_leafbrushes);
6507 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
6508 out->numleafbrushes = c;
6512 static void Mod_Q3BSP_LoadNodes(lump_t *l)
6518 in = (q3dnode_t *)(mod_base + l->fileofs);
6519 if (l->filelen % sizeof(*in))
6520 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
6521 count = l->filelen / sizeof(*in);
6523 Host_Error("Mod_Q3BSP_LoadNodes: missing BSP tree in %s",loadmodel->name);
6524 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6526 loadmodel->brush.data_nodes = out;
6527 loadmodel->brush.num_nodes = count;
6529 for (i = 0;i < count;i++, in++, out++)
6532 n = LittleLong(in->planeindex);
6533 if (n < 0 || n >= loadmodel->brush.num_planes)
6534 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
6535 out->plane = loadmodel->brush.data_planes + n;
6536 for (j = 0;j < 2;j++)
6538 n = LittleLong(in->childrenindex[j]);
6541 if (n >= loadmodel->brush.num_nodes)
6542 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)", n, loadmodel->brush.num_nodes);
6543 out->children[j] = loadmodel->brush.data_nodes + n;
6548 if (n >= loadmodel->brush.num_leafs)
6549 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)", n, loadmodel->brush.num_leafs);
6550 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
6553 for (j = 0;j < 3;j++)
6555 // yes the mins/maxs are ints
6556 out->mins[j] = LittleLong(in->mins[j]) - 1;
6557 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
6561 // set the parent pointers
6562 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
6565 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
6568 q3dlightgrid_t *out;
6572 in = (q3dlightgrid_t *)(mod_base + l->fileofs);
6573 if (l->filelen % sizeof(*in))
6574 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
6575 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
6576 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
6577 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
6578 loadmodel->brushq3.num_lightgrid_imins[0] = (int)ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
6579 loadmodel->brushq3.num_lightgrid_imins[1] = (int)ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
6580 loadmodel->brushq3.num_lightgrid_imins[2] = (int)ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
6581 loadmodel->brushq3.num_lightgrid_imaxs[0] = (int)floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
6582 loadmodel->brushq3.num_lightgrid_imaxs[1] = (int)floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
6583 loadmodel->brushq3.num_lightgrid_imaxs[2] = (int)floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
6584 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
6585 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
6586 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
6587 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
6588 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]);
6589 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]);
6591 // if lump is empty there is nothing to load, we can deal with that in the LightPoint code
6594 if (l->filelen < count * (int)sizeof(*in))
6596 Con_Printf("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_isize[0], loadmodel->brushq3.num_lightgrid_isize[1], loadmodel->brushq3.num_lightgrid_isize[2]);
6597 return; // ignore the grid if we cannot understand it
6599 if (l->filelen != count * (int)sizeof(*in))
6600 Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", (int)(count * sizeof(*in)), l->filelen);
6601 out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6602 loadmodel->brushq3.data_lightgrid = out;
6603 loadmodel->brushq3.num_lightgrid = count;
6604 // no swapping or validation necessary
6605 memcpy(out, in, count * (int)sizeof(*out));
6607 if(mod_q3bsp_sRGBlightmaps.integer)
6609 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
6611 // we fix the brightness consistently via lightmapscale
6615 for(i = 0; i < count; ++i)
6617 out[i].ambientrgb[0] = floor(Image_LinearFloatFromsRGB(out[i].ambientrgb[0]) * 255.0f + 0.5f);
6618 out[i].ambientrgb[1] = floor(Image_LinearFloatFromsRGB(out[i].ambientrgb[1]) * 255.0f + 0.5f);
6619 out[i].ambientrgb[2] = floor(Image_LinearFloatFromsRGB(out[i].ambientrgb[2]) * 255.0f + 0.5f);
6620 out[i].diffusergb[0] = floor(Image_LinearFloatFromsRGB(out[i].diffusergb[0]) * 255.0f + 0.5f);
6621 out[i].diffusergb[1] = floor(Image_LinearFloatFromsRGB(out[i].diffusergb[1]) * 255.0f + 0.5f);
6622 out[i].diffusergb[2] = floor(Image_LinearFloatFromsRGB(out[i].diffusergb[2]) * 255.0f + 0.5f);
6628 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
6630 for(i = 0; i < count; ++i)
6632 out[i].ambientrgb[0] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].ambientrgb[0]) * 255.0f + 0.5f);
6633 out[i].ambientrgb[1] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].ambientrgb[1]) * 255.0f + 0.5f);
6634 out[i].ambientrgb[2] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].ambientrgb[2]) * 255.0f + 0.5f);
6635 out[i].diffusergb[0] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].diffusergb[0]) * 255.0f + 0.5f);
6636 out[i].diffusergb[1] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].diffusergb[1]) * 255.0f + 0.5f);
6637 out[i].diffusergb[2] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].diffusergb[2]) * 255.0f + 0.5f);
6648 static void Mod_Q3BSP_LoadPVS(lump_t *l)
6653 if (l->filelen == 0)
6656 // unvised maps often have cluster indices even without pvs, so check
6657 // leafs to find real number of clusters
6658 loadmodel->brush.num_pvsclusters = 1;
6659 for (i = 0;i < loadmodel->brush.num_leafs;i++)
6660 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
6663 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
6664 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
6665 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
6666 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
6670 in = (q3dpvs_t *)(mod_base + l->fileofs);
6672 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
6674 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
6675 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
6676 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
6677 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
6678 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
6679 if (l->filelen < totalchains + (int)sizeof(*in))
6680 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);
6682 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
6683 memcpy(loadmodel->brush.data_pvsclusters, (unsigned char *)(in + 1), totalchains);
6686 static void Mod_Q3BSP_LightPoint(dp_model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
6688 int i, j, k, index[3];
6689 float transformed[3], blend1, blend2, blend, stylescale = 1;
6690 q3dlightgrid_t *a, *s;
6692 // scale lighting by lightstyle[0] so that darkmode in dpmod works properly
6693 // LadyHavoc: FIXME: is this true?
6694 stylescale = 1; // added while render
6695 //stylescale = r_refdef.scene.rtlightstylevalue[0];
6697 if (!model->brushq3.num_lightgrid)
6699 ambientcolor[0] = stylescale;
6700 ambientcolor[1] = stylescale;
6701 ambientcolor[2] = stylescale;
6705 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
6706 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
6707 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
6708 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
6709 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
6710 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
6711 index[0] = (int)floor(transformed[0]);
6712 index[1] = (int)floor(transformed[1]);
6713 index[2] = (int)floor(transformed[2]);
6714 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
6716 // now lerp the values
6717 VectorClear(diffusenormal);
6718 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
6719 for (k = 0;k < 2;k++)
6721 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
6722 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
6724 for (j = 0;j < 2;j++)
6726 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
6727 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
6729 for (i = 0;i < 2;i++)
6731 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0]))) * stylescale;
6732 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
6734 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
6735 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
6736 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
6737 // this uses the mod_md3_sin table because the values are
6738 // already in the 0-255 range, the 64+ bias fetches a cosine
6739 // instead of a sine value
6740 diffusenormal[0] += blend * (mod_md3_sin[64 + s->diffuseyaw] * mod_md3_sin[s->diffusepitch]);
6741 diffusenormal[1] += blend * (mod_md3_sin[ s->diffuseyaw] * mod_md3_sin[s->diffusepitch]);
6742 diffusenormal[2] += blend * (mod_md3_sin[64 + s->diffusepitch]);
6743 //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)));
6748 // normalize the light direction before turning
6749 VectorNormalize(diffusenormal);
6750 //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]);
6753 static int Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(mnode_t *node, double p1[3], double p2[3], double endpos[3])
6756 double midf, mid[3];
6762 // find the point distances
6763 mplane_t *plane = node->plane;
6764 if (plane->type < 3)
6766 t1 = p1[plane->type] - plane->dist;
6767 t2 = p2[plane->type] - plane->dist;
6771 t1 = DotProduct (plane->normal, p1) - plane->dist;
6772 t2 = DotProduct (plane->normal, p2) - plane->dist;
6779 node = node->children[1];
6788 node = node->children[0];
6794 midf = t1 / (t1 - t2);
6795 VectorLerp(p1, midf, p2, mid);
6797 // recurse both sides, front side first
6798 // return 2 if empty is followed by solid (hit something)
6799 // do not return 2 if both are solid or both empty,
6800 // or if start is solid and end is empty
6801 // as these degenerate cases usually indicate the eye is in solid and
6802 // should see the target point anyway
6803 ret = Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ], p1, mid, endpos);
6806 ret = Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ^ 1], mid, p2, endpos);
6809 VectorCopy(mid, endpos);
6812 return ((mleaf_t *)node)->clusterindex < 0;
6815 static qboolean Mod_Q3BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end, const vec3_t acceptmins, const vec3_t acceptmaxs)
6817 if (model->brush.submodel || mod_q3bsp_tracelineofsight_brushes.integer)
6820 model->TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK, 0, MATERIALFLAGMASK_TRANSLUCENT);
6821 return trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, acceptmins, acceptmaxs);
6825 double tracestart[3], traceend[3], traceendpos[3];
6826 VectorCopy(start, tracestart);
6827 VectorCopy(end, traceend);
6828 VectorCopy(end, traceendpos);
6829 Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(model->brush.data_nodes, tracestart, traceend, traceendpos);
6830 return BoxesOverlap(traceendpos, traceendpos, acceptmins, acceptmaxs);
6834 void Mod_CollisionBIH_TracePoint(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
6837 const bih_leaf_t *leaf;
6838 const bih_node_t *node;
6839 const colbrushf_t *brush;
6842 int nodestackpos = 0;
6843 int nodestack[1024];
6845 memset(trace, 0, sizeof(*trace));
6846 trace->fraction = 1;
6847 trace->hitsupercontentsmask = hitsupercontentsmask;
6848 trace->skipsupercontentsmask = skipsupercontentsmask;
6849 trace->skipmaterialflagsmask = skipmaterialflagsmask;
6851 bih = &model->collision_bih;
6855 nodenum = bih->rootnode;
6856 nodestack[nodestackpos++] = nodenum;
6857 while (nodestackpos)
6859 nodenum = nodestack[--nodestackpos];
6860 node = bih->nodes + nodenum;
6862 if (!BoxesOverlap(start, start, node->mins, node->maxs))
6865 if (node->type <= BIH_SPLITZ && nodestackpos+2 <= 1024)
6867 axis = node->type - BIH_SPLITX;
6868 if (start[axis] >= node->frontmin)
6869 nodestack[nodestackpos++] = node->front;
6870 if (start[axis] <= node->backmax)
6871 nodestack[nodestackpos++] = node->back;
6873 else if (node->type == BIH_UNORDERED)
6875 for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
6877 leaf = bih->leafs + node->children[axis];
6879 if (!BoxesOverlap(start, start, leaf->mins, leaf->maxs))
6885 brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
6886 Collision_TracePointBrushFloat(trace, start, brush);
6888 case BIH_COLLISIONTRIANGLE:
6889 // collision triangle - skipped because they have no volume
6891 case BIH_RENDERTRIANGLE:
6892 // render triangle - skipped because they have no volume
6900 static void Mod_CollisionBIH_TraceLineShared(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask, const bih_t *bih)
6902 const bih_leaf_t *leaf;
6903 const bih_node_t *node;
6904 const colbrushf_t *brush;
6906 const texture_t *texture;
6907 vec3_t nodebigmins, nodebigmaxs, nodestart, nodeend, sweepnodemins, sweepnodemaxs;
6908 vec_t d1, d2, d3, d4, f, nodestackline[1024][6];
6909 int axis, nodenum, nodestackpos = 0, nodestack[1024];
6914 if (VectorCompare(start, end))
6916 Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
6920 nodenum = bih->rootnode;
6922 memset(trace, 0, sizeof(*trace));
6923 trace->fraction = 1;
6924 trace->hitsupercontentsmask = hitsupercontentsmask;
6925 trace->skipsupercontentsmask = skipsupercontentsmask;
6926 trace->skipmaterialflagsmask = skipmaterialflagsmask;
6929 nodestackline[nodestackpos][0] = start[0];
6930 nodestackline[nodestackpos][1] = start[1];
6931 nodestackline[nodestackpos][2] = start[2];
6932 nodestackline[nodestackpos][3] = end[0];
6933 nodestackline[nodestackpos][4] = end[1];
6934 nodestackline[nodestackpos][5] = end[2];
6935 nodestack[nodestackpos++] = nodenum;
6936 while (nodestackpos)
6938 nodenum = nodestack[--nodestackpos];
6939 node = bih->nodes + nodenum;
6940 VectorCopy(nodestackline[nodestackpos], nodestart);
6941 VectorCopy(nodestackline[nodestackpos] + 3, nodeend);
6942 sweepnodemins[0] = min(nodestart[0], nodeend[0]) - 1;
6943 sweepnodemins[1] = min(nodestart[1], nodeend[1]) - 1;
6944 sweepnodemins[2] = min(nodestart[2], nodeend[2]) - 1;
6945 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + 1;
6946 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + 1;
6947 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + 1;
6948 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, node->mins, node->maxs) && !collision_bih_fullrecursion.integer)
6950 if (node->type <= BIH_SPLITZ && nodestackpos+2 <= 1024)
6952 // recurse children of the split
6953 axis = node->type - BIH_SPLITX;
6954 d1 = node->backmax - nodestart[axis];
6955 d2 = node->backmax - nodeend[axis];
6956 d3 = nodestart[axis] - node->frontmin;
6957 d4 = nodeend[axis] - node->frontmin;
6958 if (collision_bih_fullrecursion.integer)
6959 d1 = d2 = d3 = d4 = 1; // force full recursion
6960 switch((d1 < 0) | ((d2 < 0) << 1) | ((d3 < 0) << 2) | ((d4 < 0) << 3))
6962 case 0: /* >>>> */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6963 case 1: /* <>>> */ f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6964 case 2: /* ><>> */ f = d1 / (d1 - d2); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6965 case 3: /* <<>> */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6966 case 4: /* >><> */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; f = d3 / (d3 - d4); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6967 case 5: /* <><> */ f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; f = d3 / (d3 - d4); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6968 case 6: /* ><<> */ f = d1 / (d1 - d2); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; f = d3 / (d3 - d4); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6969 case 7: /* <<<> */ f = d3 / (d3 - d4); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6970 case 8: /* >>>< */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; f = d3 / (d3 - d4); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6971 case 9: /* <>>< */ f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; f = d3 / (d3 - d4); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6972 case 10: /* ><>< */ f = d1 / (d1 - d2); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; f = d3 / (d3 - d4); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6973 case 11: /* <<>< */ f = d3 / (d3 - d4); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6974 case 12: /* >><< */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6975 case 13: /* <><< */ f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6976 case 14: /* ><<< */ f = d1 / (d1 - d2); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6977 case 15: /* <<<< */ break;
6980 else if (node->type == BIH_UNORDERED)
6982 // calculate sweep bounds for this node
6983 // copy node bounds into local variables
6984 VectorCopy(node->mins, nodebigmins);
6985 VectorCopy(node->maxs, nodebigmaxs);
6986 // clip line to this node bounds
6987 axis = 0; d1 = nodestart[axis] - nodebigmins[axis]; d2 = nodeend[axis] - nodebigmins[axis]; if (d1 < 0) { if (d2 < 0) continue; f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestart); } else if (d2 < 0) { f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodeend); } d1 = nodebigmaxs[axis] - nodestart[axis]; d2 = nodebigmaxs[axis] - nodeend[axis]; if (d1 < 0) { if (d2 < 0) continue; f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestart); } else if (d2 < 0) { f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodeend); }
6988 axis = 1; d1 = nodestart[axis] - nodebigmins[axis]; d2 = nodeend[axis] - nodebigmins[axis]; if (d1 < 0) { if (d2 < 0) continue; f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestart); } else if (d2 < 0) { f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodeend); } d1 = nodebigmaxs[axis] - nodestart[axis]; d2 = nodebigmaxs[axis] - nodeend[axis]; if (d1 < 0) { if (d2 < 0) continue; f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestart); } else if (d2 < 0) { f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodeend); }
6989 axis = 2; d1 = nodestart[axis] - nodebigmins[axis]; d2 = nodeend[axis] - nodebigmins[axis]; if (d1 < 0) { if (d2 < 0) continue; f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestart); } else if (d2 < 0) { f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodeend); } d1 = nodebigmaxs[axis] - nodestart[axis]; d2 = nodebigmaxs[axis] - nodeend[axis]; if (d1 < 0) { if (d2 < 0) continue; f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestart); } else if (d2 < 0) { f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodeend); }
6990 // some of the line intersected the enlarged node box
6991 // calculate sweep bounds for this node
6992 sweepnodemins[0] = min(nodestart[0], nodeend[0]) - 1;
6993 sweepnodemins[1] = min(nodestart[1], nodeend[1]) - 1;
6994 sweepnodemins[2] = min(nodestart[2], nodeend[2]) - 1;
6995 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + 1;
6996 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + 1;
6997 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + 1;
6998 for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
7000 leaf = bih->leafs + node->children[axis];
7001 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, leaf->mins, leaf->maxs))
7006 brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
7007 Collision_TraceLineBrushFloat(trace, start, end, brush, brush);
7009 case BIH_COLLISIONTRIANGLE:
7010 if (!mod_q3bsp_curves_collisions.integer)
7012 e = model->brush.data_collisionelement3i + 3*leaf->itemindex;
7013 texture = model->data_textures + leaf->textureindex;
7014 Collision_TraceLineTriangleFloat(trace, start, end, model->brush.data_collisionvertex3f + e[0] * 3, model->brush.data_collisionvertex3f + e[1] * 3, model->brush.data_collisionvertex3f + e[2] * 3, texture->supercontents, texture->surfaceflags, texture);
7016 case BIH_RENDERTRIANGLE:
7017 e = model->surfmesh.data_element3i + 3*leaf->itemindex;
7018 texture = model->data_textures + leaf->textureindex;
7019 Collision_TraceLineTriangleFloat(trace, start, end, model->surfmesh.data_vertex3f + e[0] * 3, model->surfmesh.data_vertex3f + e[1] * 3, model->surfmesh.data_vertex3f + e[2] * 3, texture->supercontents, texture->surfaceflags, texture);
7027 void Mod_CollisionBIH_TraceLine(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
7029 if (VectorCompare(start, end))
7031 Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7034 Mod_CollisionBIH_TraceLineShared(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, &model->collision_bih);
7037 void Mod_CollisionBIH_TraceBrush(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, colbrushf_t *thisbrush_start, colbrushf_t *thisbrush_end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
7040 const bih_leaf_t *leaf;
7041 const bih_node_t *node;
7042 const colbrushf_t *brush;
7044 const texture_t *texture;
7045 vec3_t start, end, startmins, startmaxs, endmins, endmaxs, mins, maxs;
7046 vec3_t nodebigmins, nodebigmaxs, nodestart, nodeend, sweepnodemins, sweepnodemaxs;
7047 vec_t d1, d2, d3, d4, f, nodestackline[1024][6];
7048 int axis, nodenum, nodestackpos = 0, nodestack[1024];
7050 if (mod_q3bsp_optimizedtraceline.integer && VectorCompare(thisbrush_start->mins, thisbrush_start->maxs) && VectorCompare(thisbrush_end->mins, thisbrush_end->maxs))
7052 if (VectorCompare(thisbrush_start->mins, thisbrush_end->mins))
7053 Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, thisbrush_start->mins, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7055 Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, thisbrush_start->mins, thisbrush_end->mins, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7059 bih = &model->collision_bih;
7062 nodenum = bih->rootnode;
7064 // box trace, performed as brush trace
7065 memset(trace, 0, sizeof(*trace));
7066 trace->fraction = 1;
7067 trace->hitsupercontentsmask = hitsupercontentsmask;
7068 trace->skipsupercontentsmask = skipsupercontentsmask;
7069 trace->skipmaterialflagsmask = skipmaterialflagsmask;
7071 // calculate tracebox-like parameters for efficient culling
7072 VectorMAM(0.5f, thisbrush_start->mins, 0.5f, thisbrush_start->maxs, start);
7073 VectorMAM(0.5f, thisbrush_end->mins, 0.5f, thisbrush_end->maxs, end);
7074 VectorSubtract(thisbrush_start->mins, start, startmins);
7075 VectorSubtract(thisbrush_start->maxs, start, startmaxs);
7076 VectorSubtract(thisbrush_end->mins, end, endmins);
7077 VectorSubtract(thisbrush_end->maxs, end, endmaxs);
7078 mins[0] = min(startmins[0], endmins[0]);
7079 mins[1] = min(startmins[1], endmins[1]);
7080 mins[2] = min(startmins[2], endmins[2]);
7081 maxs[0] = max(startmaxs[0], endmaxs[0]);
7082 maxs[1] = max(startmaxs[1], endmaxs[1]);
7083 maxs[2] = max(startmaxs[2], endmaxs[2]);
7086 nodestackline[nodestackpos][0] = start[0];
7087 nodestackline[nodestackpos][1] = start[1];
7088 nodestackline[nodestackpos][2] = start[2];
7089 nodestackline[nodestackpos][3] = end[0];
7090 nodestackline[nodestackpos][4] = end[1];
7091 nodestackline[nodestackpos][5] = end[2];
7092 nodestack[nodestackpos++] = nodenum;
7093 while (nodestackpos)
7095 nodenum = nodestack[--nodestackpos];
7096 node = bih->nodes + nodenum;
7097 VectorCopy(nodestackline[nodestackpos], nodestart);
7098 VectorCopy(nodestackline[nodestackpos] + 3, nodeend);
7099 sweepnodemins[0] = min(nodestart[0], nodeend[0]) + mins[0] - 1;
7100 sweepnodemins[1] = min(nodestart[1], nodeend[1]) + mins[1] - 1;
7101 sweepnodemins[2] = min(nodestart[2], nodeend[2]) + mins[2] - 1;
7102 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + maxs[0] + 1;
7103 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + maxs[1] + 1;
7104 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + maxs[2] + 1;
7105 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, node->mins, node->maxs))
7107 if (node->type <= BIH_SPLITZ && nodestackpos+2 <= 1024)
7109 // recurse children of the split
7110 axis = node->type - BIH_SPLITX;
7111 d1 = node->backmax - nodestart[axis] - mins[axis];
7112 d2 = node->backmax - nodeend[axis] - mins[axis];
7113 d3 = nodestart[axis] - node->frontmin + maxs[axis];
7114 d4 = nodeend[axis] - node->frontmin + maxs[axis];
7115 switch((d1 < 0) | ((d2 < 0) << 1) | ((d3 < 0) << 2) | ((d4 < 0) << 3))
7117 case 0: /* >>>> */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7118 case 1: /* <>>> */ f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7119 case 2: /* ><>> */ f = d1 / (d1 - d2); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7120 case 3: /* <<>> */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7121 case 4: /* >><> */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; f = d3 / (d3 - d4); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7122 case 5: /* <><> */ f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; f = d3 / (d3 - d4); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7123 case 6: /* ><<> */ f = d1 / (d1 - d2); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; f = d3 / (d3 - d4); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7124 case 7: /* <<<> */ f = d3 / (d3 - d4); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7125 case 8: /* >>>< */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; f = d3 / (d3 - d4); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7126 case 9: /* <>>< */ f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; f = d3 / (d3 - d4); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7127 case 10: /* ><>< */ f = d1 / (d1 - d2); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; f = d3 / (d3 - d4); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7128 case 11: /* <<>< */ f = d3 / (d3 - d4); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7129 case 12: /* >><< */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
7130 case 13: /* <><< */ f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
7131 case 14: /* ><<< */ f = d1 / (d1 - d2); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
7132 case 15: /* <<<< */ break;
7135 else if (node->type == BIH_UNORDERED)
7137 // calculate sweep bounds for this node
7138 // copy node bounds into local variables and expand to get Minkowski Sum of the two shapes
7139 VectorSubtract(node->mins, maxs, nodebigmins);
7140 VectorSubtract(node->maxs, mins, nodebigmaxs);
7141 // clip line to this node bounds
7142 axis = 0; d1 = nodestart[axis] - nodebigmins[axis]; d2 = nodeend[axis] - nodebigmins[axis]; if (d1 < 0) { if (d2 < 0) continue; f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestart); } else if (d2 < 0) { f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodeend); } d1 = nodebigmaxs[axis] - nodestart[axis]; d2 = nodebigmaxs[axis] - nodeend[axis]; if (d1 < 0) { if (d2 < 0) continue; f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestart); } else if (d2 < 0) { f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodeend); }
7143 axis = 1; d1 = nodestart[axis] - nodebigmins[axis]; d2 = nodeend[axis] - nodebigmins[axis]; if (d1 < 0) { if (d2 < 0) continue; f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestart); } else if (d2 < 0) { f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodeend); } d1 = nodebigmaxs[axis] - nodestart[axis]; d2 = nodebigmaxs[axis] - nodeend[axis]; if (d1 < 0) { if (d2 < 0) continue; f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestart); } else if (d2 < 0) { f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodeend); }
7144 axis = 2; d1 = nodestart[axis] - nodebigmins[axis]; d2 = nodeend[axis] - nodebigmins[axis]; if (d1 < 0) { if (d2 < 0) continue; f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestart); } else if (d2 < 0) { f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodeend); } d1 = nodebigmaxs[axis] - nodestart[axis]; d2 = nodebigmaxs[axis] - nodeend[axis]; if (d1 < 0) { if (d2 < 0) continue; f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestart); } else if (d2 < 0) { f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodeend); }
7145 // some of the line intersected the enlarged node box
7146 // calculate sweep bounds for this node
7147 sweepnodemins[0] = min(nodestart[0], nodeend[0]) + mins[0] - 1;
7148 sweepnodemins[1] = min(nodestart[1], nodeend[1]) + mins[1] - 1;
7149 sweepnodemins[2] = min(nodestart[2], nodeend[2]) + mins[2] - 1;
7150 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + maxs[0] + 1;
7151 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + maxs[1] + 1;
7152 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + maxs[2] + 1;
7153 for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
7155 leaf = bih->leafs + node->children[axis];
7156 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, leaf->mins, leaf->maxs))
7161 brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
7162 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
7164 case BIH_COLLISIONTRIANGLE:
7165 if (!mod_q3bsp_curves_collisions.integer)
7167 e = model->brush.data_collisionelement3i + 3*leaf->itemindex;
7168 texture = model->data_textures + leaf->textureindex;
7169 Collision_TraceBrushTriangleFloat(trace, thisbrush_start, thisbrush_end, model->brush.data_collisionvertex3f + e[0] * 3, model->brush.data_collisionvertex3f + e[1] * 3, model->brush.data_collisionvertex3f + e[2] * 3, texture->supercontents, texture->surfaceflags, texture);
7171 case BIH_RENDERTRIANGLE:
7172 e = model->surfmesh.data_element3i + 3*leaf->itemindex;
7173 texture = model->data_textures + leaf->textureindex;
7174 Collision_TraceBrushTriangleFloat(trace, thisbrush_start, thisbrush_end, model->surfmesh.data_vertex3f + e[0] * 3, model->surfmesh.data_vertex3f + e[1] * 3, model->surfmesh.data_vertex3f + e[2] * 3, texture->supercontents, texture->surfaceflags, texture);
7182 void Mod_CollisionBIH_TraceBox(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
7184 colboxbrushf_t thisbrush_start, thisbrush_end;
7185 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
7187 // box trace, performed as brush trace
7188 VectorAdd(start, boxmins, boxstartmins);
7189 VectorAdd(start, boxmaxs, boxstartmaxs);
7190 VectorAdd(end, boxmins, boxendmins);
7191 VectorAdd(end, boxmaxs, boxendmaxs);
7192 Collision_BrushForBox(&thisbrush_start, boxstartmins, boxstartmaxs, 0, 0, NULL);
7193 Collision_BrushForBox(&thisbrush_end, boxendmins, boxendmaxs, 0, 0, NULL);
7194 Mod_CollisionBIH_TraceBrush(model, frameblend, skeleton, trace, &thisbrush_start.brush, &thisbrush_end.brush, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7198 int Mod_CollisionBIH_PointSuperContents(struct model_s *model, int frame, const vec3_t point)
7201 Mod_CollisionBIH_TracePoint(model, NULL, NULL, &trace, point, 0, 0, 0);
7202 return trace.startsupercontents;
7205 qboolean Mod_CollisionBIH_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end, const vec3_t acceptmins, const vec3_t acceptmaxs)
7208 Mod_CollisionBIH_TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK, 0, MATERIALFLAGMASK_TRANSLUCENT);
7209 return trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, acceptmins, acceptmaxs);
7212 void Mod_CollisionBIH_TracePoint_Mesh(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
7215 // broken - needs to be modified to count front faces and backfaces to figure out if it is in solid
7217 int hitsupercontents;
7218 VectorSet(end, start[0], start[1], model->normalmins[2]);
7220 memset(trace, 0, sizeof(*trace));
7221 trace->fraction = 1;
7222 trace->hitsupercontentsmask = hitsupercontentsmask;
7223 trace->skipsupercontentsmask = skipsupercontentsmask;
7224 trace->skipmaterialflagsmask = skipmaterialflagsmask;
7226 Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7227 hitsupercontents = trace->hitsupercontents;
7228 memset(trace, 0, sizeof(*trace));
7229 trace->fraction = 1;
7230 trace->hitsupercontentsmask = hitsupercontentsmask;
7231 trace->skipsupercontentsmask = skipsupercontentsmask;
7232 trace->skipmaterialflagsmask = skipmaterialflagsmask;
7233 trace->startsupercontents = hitsupercontents;
7237 int Mod_CollisionBIH_PointSuperContents_Mesh(struct model_s *model, int frame, const vec3_t start)
7240 // broken - needs to be modified to count front faces and backfaces to figure out if it is in solid
7243 VectorSet(end, start[0], start[1], model->normalmins[2]);
7244 memset(&trace, 0, sizeof(trace));
7246 trace.hitsupercontentsmask = hitsupercontentsmask;
7247 trace.skipsupercontentsmask = skipsupercontentsmask;
7248 trace.skipmaterialflagsmask = skipmaterialflagsmask;
7249 Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7250 return trace.hitsupercontents;
7256 static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, dp_model_t *model, mnode_t *node, const vec3_t point, int markframe)
7261 // find which leaf the point is in
7263 node = node->children[(node->plane->type < 3 ? point[node->plane->type] : DotProduct(point, node->plane->normal)) < node->plane->dist];
7264 // point trace the brushes
7265 leaf = (mleaf_t *)node;
7266 for (i = 0;i < leaf->numleafbrushes;i++)
7268 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
7269 if (brush && brush->markframe != markframe && BoxesOverlap(point, point, brush->mins, brush->maxs))
7271 brush->markframe = markframe;
7272 Collision_TracePointBrushFloat(trace, point, brush);
7275 // can't do point traces on curves (they have no thickness)
7278 static void Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace_t *trace, dp_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)
7280 int i, startside, endside;
7281 float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
7283 msurface_t *surface;
7286 // walk the tree until we hit a leaf, recursing for any split cases
7290 if (!BoxesOverlap(segmentmins, segmentmaxs, node->mins, node->maxs))
7292 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[0], start, end, startfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
7293 node = node->children[1];
7295 // abort if this part of the bsp tree can not be hit by this trace
7296 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
7298 plane = node->plane;
7299 // axial planes are much more common than non-axial, so an optimized
7300 // axial case pays off here
7301 if (plane->type < 3)
7303 dist1 = start[plane->type] - plane->dist;
7304 dist2 = end[plane->type] - plane->dist;
7308 dist1 = DotProduct(start, plane->normal) - plane->dist;
7309 dist2 = DotProduct(end, plane->normal) - plane->dist;
7311 startside = dist1 < 0;
7312 endside = dist2 < 0;
7313 if (startside == endside)
7315 // most of the time the line fragment is on one side of the plane
7316 node = node->children[startside];
7320 // line crosses node plane, split the line
7321 dist1 = PlaneDiff(linestart, plane);
7322 dist2 = PlaneDiff(lineend, plane);
7323 midfrac = dist1 / (dist1 - dist2);
7324 VectorLerp(linestart, midfrac, lineend, mid);
7325 // take the near side first
7326 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
7327 // if we found an impact on the front side, don't waste time
7328 // exploring the far side
7329 if (midfrac <= trace->fraction)
7330 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
7335 // abort if this part of the bsp tree can not be hit by this trace
7336 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
7339 nodesegmentmins[0] = min(start[0], end[0]) - 1;
7340 nodesegmentmins[1] = min(start[1], end[1]) - 1;
7341 nodesegmentmins[2] = min(start[2], end[2]) - 1;
7342 nodesegmentmaxs[0] = max(start[0], end[0]) + 1;
7343 nodesegmentmaxs[1] = max(start[1], end[1]) + 1;
7344 nodesegmentmaxs[2] = max(start[2], end[2]) + 1;
7345 // line trace the brushes
7346 leaf = (mleaf_t *)node;
7348 if (!BoxesOverlap(segmentmins, segmentmaxs, leaf->mins, leaf->maxs))
7351 for (i = 0;i < leaf->numleafbrushes;i++)
7353 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
7354 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
7356 brush->markframe = markframe;
7357 Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
7360 // can't do point traces on curves (they have no thickness)
7361 if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
7363 // line trace the curves
7364 for (i = 0;i < leaf->numleafsurfaces;i++)
7366 surface = model->data_surfaces + leaf->firstleafsurface[i];
7367 if (surface->num_collisiontriangles && surface->deprecatedq3collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
7369 surface->deprecatedq3collisionmarkframe = markframe;
7370 Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->num_collisiontriangles, surface->deprecatedq3data_collisionelement3i, surface->deprecatedq3data_collisionvertex3f, surface->deprecatedq3num_collisionbboxstride, surface->deprecatedq3data_collisionbbox6f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
7376 static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, dp_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)
7382 msurface_t *surface;
7384 float nodesegmentmins[3], nodesegmentmaxs[3];
7385 // walk the tree until we hit a leaf, recursing for any split cases
7389 if (!BoxesOverlap(segmentmins, segmentmaxs, node->mins, node->maxs))
7391 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
7392 node = node->children[1];
7394 // abort if this part of the bsp tree can not be hit by this trace
7395 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
7397 plane = node->plane;
7398 // axial planes are much more common than non-axial, so an optimized
7399 // axial case pays off here
7400 if (plane->type < 3)
7402 // this is an axial plane, compare bounding box directly to it and
7403 // recurse sides accordingly
7404 // recurse down node sides
7405 // use an inlined axial BoxOnPlaneSide to slightly reduce overhead
7406 //sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, plane);
7407 //sides = ((segmentmaxs[plane->type] >= plane->dist) | ((segmentmins[plane->type] < plane->dist) << 1));
7408 sides = ((segmentmaxs[plane->type] >= plane->dist) + ((segmentmins[plane->type] < plane->dist) * 2));
7412 // this is a non-axial plane, so check if the start and end boxes
7413 // are both on one side of the plane to handle 'diagonal' cases
7414 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, plane);
7418 // segment crosses plane
7419 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
7422 // if sides == 0 then the trace itself is bogus (Not A Number values),
7423 // in this case we simply pretend the trace hit nothing
7425 return; // ERROR: NAN bounding box!
7426 // take whichever side the segment box is on
7427 node = node->children[sides - 1];
7430 // abort if this part of the bsp tree can not be hit by this trace
7431 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
7433 nodesegmentmins[0] = max(segmentmins[0], node->mins[0] - 1);
7434 nodesegmentmins[1] = max(segmentmins[1], node->mins[1] - 1);
7435 nodesegmentmins[2] = max(segmentmins[2], node->mins[2] - 1);
7436 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0] + 1);
7437 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1] + 1);
7438 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2] + 1);
7440 leaf = (mleaf_t *)node;
7442 if (!BoxesOverlap(segmentmins, segmentmaxs, leaf->mins, leaf->maxs))
7445 for (i = 0;i < leaf->numleafbrushes;i++)
7447 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
7448 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
7450 brush->markframe = markframe;
7451 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
7454 if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer)
7456 for (i = 0;i < leaf->numleafsurfaces;i++)
7458 surface = model->data_surfaces + leaf->firstleafsurface[i];
7459 if (surface->num_collisiontriangles && surface->deprecatedq3collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
7461 surface->deprecatedq3collisionmarkframe = markframe;
7462 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->deprecatedq3data_collisionelement3i, surface->deprecatedq3data_collisionvertex3f, surface->deprecatedq3num_collisionbboxstride, surface->deprecatedq3data_collisionbbox6f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
7469 static int markframe = 0;
7471 static void Mod_Q3BSP_TracePoint(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
7475 memset(trace, 0, sizeof(*trace));
7476 trace->fraction = 1;
7477 trace->hitsupercontentsmask = hitsupercontentsmask;
7478 trace->skipsupercontentsmask = skipsupercontentsmask;
7479 trace->skipmaterialflagsmask = skipmaterialflagsmask;
7480 if (mod_collision_bih.integer)
7481 Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7482 else if (model->brush.submodel)
7484 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
7485 if (brush->colbrushf)
7486 Collision_TracePointBrushFloat(trace, start, brush->colbrushf);
7489 Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, ++markframe);
7492 static void Mod_Q3BSP_TraceLine(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
7495 float segmentmins[3], segmentmaxs[3];
7496 msurface_t *surface;
7499 if (VectorCompare(start, end))
7501 Mod_Q3BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7505 memset(trace, 0, sizeof(*trace));
7506 trace->fraction = 1;
7507 trace->hitsupercontentsmask = hitsupercontentsmask;
7508 trace->skipsupercontentsmask = skipsupercontentsmask;
7509 trace->skipmaterialflagsmask = skipmaterialflagsmask;
7510 segmentmins[0] = min(start[0], end[0]) - 1;
7511 segmentmins[1] = min(start[1], end[1]) - 1;
7512 segmentmins[2] = min(start[2], end[2]) - 1;
7513 segmentmaxs[0] = max(start[0], end[0]) + 1;
7514 segmentmaxs[1] = max(start[1], end[1]) + 1;
7515 segmentmaxs[2] = max(start[2], end[2]) + 1;
7516 if (mod_collision_bih.integer)
7517 Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7518 else if (model->brush.submodel)
7520 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
7521 if (brush->colbrushf && BoxesOverlap(segmentmins, segmentmaxs, brush->colbrushf->mins, brush->colbrushf->maxs))
7522 Collision_TraceLineBrushFloat(trace, start, end, brush->colbrushf, brush->colbrushf);
7523 if (mod_q3bsp_curves_collisions.integer)
7524 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
7525 if (surface->num_collisiontriangles && BoxesOverlap(segmentmins, segmentmaxs, surface->mins, surface->maxs))
7526 Collision_TraceLineTriangleMeshFloat(trace, start, end, surface->num_collisiontriangles, surface->deprecatedq3data_collisionelement3i, surface->deprecatedq3data_collisionvertex3f, surface->deprecatedq3num_collisionbboxstride, surface->deprecatedq3data_collisionbbox6f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
7529 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, end, 0, 1, start, end, ++markframe, segmentmins, segmentmaxs);
7532 static void Mod_Q3BSP_TraceBrush(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, colbrushf_t *start, colbrushf_t *end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
7534 float segmentmins[3], segmentmaxs[3];
7536 msurface_t *surface;
7539 if (mod_q3bsp_optimizedtraceline.integer && VectorCompare(start->mins, start->maxs) && VectorCompare(end->mins, end->maxs))
7541 if (VectorCompare(start->mins, end->mins))
7542 Mod_Q3BSP_TracePoint(model, frameblend, skeleton, trace, start->mins, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7544 Mod_Q3BSP_TraceLine(model, frameblend, skeleton, trace, start->mins, end->mins, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7548 // box trace, performed as brush trace
7549 memset(trace, 0, sizeof(*trace));
7550 trace->fraction = 1;
7551 trace->hitsupercontentsmask = hitsupercontentsmask;
7552 trace->skipsupercontentsmask = skipsupercontentsmask;
7553 trace->skipmaterialflagsmask = skipmaterialflagsmask;
7554 segmentmins[0] = min(start->mins[0], end->mins[0]) - 1;
7555 segmentmins[1] = min(start->mins[1], end->mins[1]) - 1;
7556 segmentmins[2] = min(start->mins[2], end->mins[2]) - 1;
7557 segmentmaxs[0] = max(start->maxs[0], end->maxs[0]) + 1;
7558 segmentmaxs[1] = max(start->maxs[1], end->maxs[1]) + 1;
7559 segmentmaxs[2] = max(start->maxs[2], end->maxs[2]) + 1;
7560 if (mod_collision_bih.integer)
7561 Mod_CollisionBIH_TraceBrush(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7562 else if (model->brush.submodel)
7564 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
7565 if (brush->colbrushf && BoxesOverlap(segmentmins, segmentmaxs, brush->colbrushf->mins, brush->colbrushf->maxs))
7566 Collision_TraceBrushBrushFloat(trace, start, end, brush->colbrushf, brush->colbrushf);
7567 if (mod_q3bsp_curves_collisions.integer)
7568 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
7569 if (surface->num_collisiontriangles && BoxesOverlap(segmentmins, segmentmaxs, surface->mins, surface->maxs))
7570 Collision_TraceBrushTriangleMeshFloat(trace, start, end, surface->num_collisiontriangles, surface->deprecatedq3data_collisionelement3i, surface->deprecatedq3data_collisionvertex3f, surface->deprecatedq3num_collisionbboxstride, surface->deprecatedq3data_collisionbbox6f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
7573 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, end, ++markframe, segmentmins, segmentmaxs);
7576 static void Mod_Q3BSP_TraceBox(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
7578 colboxbrushf_t thisbrush_start, thisbrush_end;
7579 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
7581 // box trace, performed as brush trace
7582 VectorAdd(start, boxmins, boxstartmins);
7583 VectorAdd(start, boxmaxs, boxstartmaxs);
7584 VectorAdd(end, boxmins, boxendmins);
7585 VectorAdd(end, boxmaxs, boxendmaxs);
7586 Collision_BrushForBox(&thisbrush_start, boxstartmins, boxstartmaxs, 0, 0, NULL);
7587 Collision_BrushForBox(&thisbrush_end, boxendmins, boxendmaxs, 0, 0, NULL);
7588 Mod_Q3BSP_TraceBrush(model, frameblend, skeleton, trace, &thisbrush_start.brush, &thisbrush_end.brush, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7591 static int Mod_Q3BSP_PointSuperContents(struct model_s *model, int frame, const vec3_t point)
7594 int supercontents = 0;
7596 if (mod_collision_bih.integer)
7598 supercontents = Mod_CollisionBIH_PointSuperContents(model, frame, point);
7600 // test if the point is inside each brush
7601 else if (model->brush.submodel)
7603 // submodels are effectively one leaf
7604 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
7605 if (brush->colbrushf && Collision_PointInsideBrushFloat(point, brush->colbrushf))
7606 supercontents |= brush->colbrushf->supercontents;
7610 mnode_t *node = model->brush.data_nodes;
7612 // find which leaf the point is in
7614 node = node->children[(node->plane->type < 3 ? point[node->plane->type] : DotProduct(point, node->plane->normal)) < node->plane->dist];
7615 leaf = (mleaf_t *)node;
7616 // now check the brushes in the leaf
7617 for (i = 0;i < leaf->numleafbrushes;i++)
7619 brush = model->brush.data_brushes + leaf->firstleafbrush[i];
7620 if (brush->colbrushf && Collision_PointInsideBrushFloat(point, brush->colbrushf))
7621 supercontents |= brush->colbrushf->supercontents;
7624 return supercontents;
7627 void Mod_CollisionBIH_TraceLineAgainstSurfaces(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
7629 Mod_CollisionBIH_TraceLineShared(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, &model->render_bih);
7633 bih_t *Mod_MakeCollisionBIH(dp_model_t *model, qboolean userendersurfaces, bih_t *out)
7641 int nummodelbrushes = model->nummodelbrushes;
7642 int nummodelsurfaces = model->nummodelsurfaces;
7644 const int *collisionelement3i;
7645 const float *collisionvertex3f;
7646 const int *renderelement3i;
7647 const float *rendervertex3f;
7648 bih_leaf_t *bihleafs;
7649 bih_node_t *bihnodes;
7651 int *temp_leafsortscratch;
7652 const msurface_t *surface;
7653 const q3mbrush_t *brush;
7655 // find out how many BIH leaf nodes we need
7657 if (userendersurfaces)
7659 for (j = 0, surface = model->data_surfaces + model->firstmodelsurface;j < nummodelsurfaces;j++, surface++)
7660 bihnumleafs += surface->num_triangles;
7664 for (brushindex = 0, brush = model->brush.data_brushes + brushindex+model->firstmodelbrush;brushindex < nummodelbrushes;brushindex++, brush++)
7665 if (brush->colbrushf)
7667 for (j = 0, surface = model->data_surfaces + model->firstmodelsurface;j < nummodelsurfaces;j++, surface++)
7669 if (surface->texture->basematerialflags & MATERIALFLAG_MESHCOLLISIONS)
7670 bihnumleafs += surface->num_triangles + surface->num_collisiontriangles;
7672 bihnumleafs += surface->num_collisiontriangles;
7679 // allocate the memory for the BIH leaf nodes
7680 bihleafs = (bih_leaf_t *)Mem_Alloc(loadmodel->mempool, sizeof(bih_leaf_t) * bihnumleafs);
7682 // now populate the BIH leaf nodes
7685 // add render surfaces
7686 renderelement3i = model->surfmesh.data_element3i;
7687 rendervertex3f = model->surfmesh.data_vertex3f;
7688 for (j = 0, surface = model->data_surfaces + model->firstmodelsurface;j < nummodelsurfaces;j++, surface++)
7690 for (triangleindex = 0, e = renderelement3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
7692 if (!userendersurfaces && !(surface->texture->basematerialflags & MATERIALFLAG_MESHCOLLISIONS))
7694 bihleafs[bihleafindex].type = BIH_RENDERTRIANGLE;
7695 bihleafs[bihleafindex].textureindex = surface->texture - model->data_textures;
7696 bihleafs[bihleafindex].surfaceindex = surface - model->data_surfaces;
7697 bihleafs[bihleafindex].itemindex = triangleindex+surface->num_firsttriangle;
7698 bihleafs[bihleafindex].mins[0] = min(rendervertex3f[3*e[0]+0], min(rendervertex3f[3*e[1]+0], rendervertex3f[3*e[2]+0])) - 1;
7699 bihleafs[bihleafindex].mins[1] = min(rendervertex3f[3*e[0]+1], min(rendervertex3f[3*e[1]+1], rendervertex3f[3*e[2]+1])) - 1;
7700 bihleafs[bihleafindex].mins[2] = min(rendervertex3f[3*e[0]+2], min(rendervertex3f[3*e[1]+2], rendervertex3f[3*e[2]+2])) - 1;
7701 bihleafs[bihleafindex].maxs[0] = max(rendervertex3f[3*e[0]+0], max(rendervertex3f[3*e[1]+0], rendervertex3f[3*e[2]+0])) + 1;
7702 bihleafs[bihleafindex].maxs[1] = max(rendervertex3f[3*e[0]+1], max(rendervertex3f[3*e[1]+1], rendervertex3f[3*e[2]+1])) + 1;
7703 bihleafs[bihleafindex].maxs[2] = max(rendervertex3f[3*e[0]+2], max(rendervertex3f[3*e[1]+2], rendervertex3f[3*e[2]+2])) + 1;
7708 if (!userendersurfaces)
7710 // add collision brushes
7711 for (brushindex = 0, brush = model->brush.data_brushes + brushindex+model->firstmodelbrush;brushindex < nummodelbrushes;brushindex++, brush++)
7713 if (!brush->colbrushf)
7715 bihleafs[bihleafindex].type = BIH_BRUSH;
7716 bihleafs[bihleafindex].textureindex = brush->texture - model->data_textures;
7717 bihleafs[bihleafindex].surfaceindex = -1;
7718 bihleafs[bihleafindex].itemindex = brushindex+model->firstmodelbrush;
7719 VectorCopy(brush->colbrushf->mins, bihleafs[bihleafindex].mins);
7720 VectorCopy(brush->colbrushf->maxs, bihleafs[bihleafindex].maxs);
7724 // add collision surfaces
7725 collisionelement3i = model->brush.data_collisionelement3i;
7726 collisionvertex3f = model->brush.data_collisionvertex3f;
7727 for (j = 0, surface = model->data_surfaces + model->firstmodelsurface;j < nummodelsurfaces;j++, surface++)
7729 for (triangleindex = 0, e = collisionelement3i + 3*surface->num_firstcollisiontriangle;triangleindex < surface->num_collisiontriangles;triangleindex++, e += 3)
7731 bihleafs[bihleafindex].type = BIH_COLLISIONTRIANGLE;
7732 bihleafs[bihleafindex].textureindex = surface->texture - model->data_textures;
7733 bihleafs[bihleafindex].surfaceindex = surface - model->data_surfaces;
7734 bihleafs[bihleafindex].itemindex = triangleindex+surface->num_firstcollisiontriangle;
7735 bihleafs[bihleafindex].mins[0] = min(collisionvertex3f[3*e[0]+0], min(collisionvertex3f[3*e[1]+0], collisionvertex3f[3*e[2]+0])) - 1;
7736 bihleafs[bihleafindex].mins[1] = min(collisionvertex3f[3*e[0]+1], min(collisionvertex3f[3*e[1]+1], collisionvertex3f[3*e[2]+1])) - 1;
7737 bihleafs[bihleafindex].mins[2] = min(collisionvertex3f[3*e[0]+2], min(collisionvertex3f[3*e[1]+2], collisionvertex3f[3*e[2]+2])) - 1;
7738 bihleafs[bihleafindex].maxs[0] = max(collisionvertex3f[3*e[0]+0], max(collisionvertex3f[3*e[1]+0], collisionvertex3f[3*e[2]+0])) + 1;
7739 bihleafs[bihleafindex].maxs[1] = max(collisionvertex3f[3*e[0]+1], max(collisionvertex3f[3*e[1]+1], collisionvertex3f[3*e[2]+1])) + 1;
7740 bihleafs[bihleafindex].maxs[2] = max(collisionvertex3f[3*e[0]+2], max(collisionvertex3f[3*e[1]+2], collisionvertex3f[3*e[2]+2])) + 1;
7746 // allocate buffers for the produced and temporary data
7747 bihmaxnodes = bihnumleafs + 1;
7748 bihnodes = (bih_node_t *)Mem_Alloc(loadmodel->mempool, sizeof(bih_node_t) * bihmaxnodes);
7749 temp_leafsort = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int) * bihnumleafs * 2);
7750 temp_leafsortscratch = temp_leafsort + bihnumleafs;
7753 BIH_Build(out, bihnumleafs, bihleafs, bihmaxnodes, bihnodes, temp_leafsort, temp_leafsortscratch);
7755 // we're done with the temporary data
7756 Mem_Free(temp_leafsort);
7758 // resize the BIH nodes array if it over-allocated
7759 if (out->maxnodes > out->numnodes)
7761 out->maxnodes = out->numnodes;
7762 out->nodes = (bih_node_t *)Mem_Realloc(loadmodel->mempool, out->nodes, out->numnodes * sizeof(bih_node_t));
7768 static int Mod_Q3BSP_SuperContentsFromNativeContents(int nativecontents)
7770 int supercontents = 0;
7771 if (nativecontents & CONTENTSQ3_SOLID)
7772 supercontents |= SUPERCONTENTS_SOLID;
7773 if (nativecontents & CONTENTSQ3_WATER)
7774 supercontents |= SUPERCONTENTS_WATER;
7775 if (nativecontents & CONTENTSQ3_SLIME)
7776 supercontents |= SUPERCONTENTS_SLIME;
7777 if (nativecontents & CONTENTSQ3_LAVA)
7778 supercontents |= SUPERCONTENTS_LAVA;
7779 if (nativecontents & CONTENTSQ3_BODY)
7780 supercontents |= SUPERCONTENTS_BODY;
7781 if (nativecontents & CONTENTSQ3_CORPSE)
7782 supercontents |= SUPERCONTENTS_CORPSE;
7783 if (nativecontents & CONTENTSQ3_NODROP)
7784 supercontents |= SUPERCONTENTS_NODROP;
7785 if (nativecontents & CONTENTSQ3_PLAYERCLIP)
7786 supercontents |= SUPERCONTENTS_PLAYERCLIP;
7787 if (nativecontents & CONTENTSQ3_MONSTERCLIP)
7788 supercontents |= SUPERCONTENTS_MONSTERCLIP;
7789 if (nativecontents & CONTENTSQ3_DONOTENTER)
7790 supercontents |= SUPERCONTENTS_DONOTENTER;
7791 if (nativecontents & CONTENTSQ3_BOTCLIP)
7792 supercontents |= SUPERCONTENTS_BOTCLIP;
7793 if (!(nativecontents & CONTENTSQ3_TRANSLUCENT))
7794 supercontents |= SUPERCONTENTS_OPAQUE;
7795 return supercontents;
7798 static int Mod_Q3BSP_NativeContentsFromSuperContents(int supercontents)
7800 int nativecontents = 0;
7801 if (supercontents & SUPERCONTENTS_SOLID)
7802 nativecontents |= CONTENTSQ3_SOLID;
7803 if (supercontents & SUPERCONTENTS_WATER)
7804 nativecontents |= CONTENTSQ3_WATER;
7805 if (supercontents & SUPERCONTENTS_SLIME)
7806 nativecontents |= CONTENTSQ3_SLIME;
7807 if (supercontents & SUPERCONTENTS_LAVA)
7808 nativecontents |= CONTENTSQ3_LAVA;
7809 if (supercontents & SUPERCONTENTS_BODY)
7810 nativecontents |= CONTENTSQ3_BODY;
7811 if (supercontents & SUPERCONTENTS_CORPSE)
7812 nativecontents |= CONTENTSQ3_CORPSE;
7813 if (supercontents & SUPERCONTENTS_NODROP)
7814 nativecontents |= CONTENTSQ3_NODROP;
7815 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
7816 nativecontents |= CONTENTSQ3_PLAYERCLIP;
7817 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
7818 nativecontents |= CONTENTSQ3_MONSTERCLIP;
7819 if (supercontents & SUPERCONTENTS_DONOTENTER)
7820 nativecontents |= CONTENTSQ3_DONOTENTER;
7821 if (supercontents & SUPERCONTENTS_BOTCLIP)
7822 nativecontents |= CONTENTSQ3_BOTCLIP;
7823 if (!(supercontents & SUPERCONTENTS_OPAQUE))
7824 nativecontents |= CONTENTSQ3_TRANSLUCENT;
7825 return nativecontents;
7828 static void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
7833 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
7834 node = node->children[1];
7836 numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
7837 if (loadmodel->brush.num_leafs < numleafs)
7838 loadmodel->brush.num_leafs = numleafs;
7841 static void Mod_Q3BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
7844 q3dheader_t *header;
7845 float corner[3], yawradius, modelradius;
7847 mod->modeldatatypestring = "Q3BSP";
7849 mod->type = mod_brushq3;
7850 mod->brush.ishlbsp = false;
7851 mod->brush.isbsp2rmqe = false;
7852 mod->brush.isbsp2 = false;
7853 mod->brush.isq2bsp = false;
7854 mod->brush.isq3bsp = true;
7855 mod->brush.skymasking = true;
7856 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
7859 header = (q3dheader_t *)buffer;
7860 if((char *) bufferend < (char *) buffer + sizeof(q3dheader_t))
7861 Host_Error("Mod_Q3BSP_Load: %s is smaller than its header", mod->name);
7863 i = LittleLong(header->version);
7864 if (i != Q3BSPVERSION && i != Q3BSPVERSION_IG && i != Q3BSPVERSION_LIVE)
7865 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
7867 mod->soundfromcenter = true;
7868 mod->TraceBox = Mod_Q3BSP_TraceBox;
7869 mod->TraceBrush = Mod_Q3BSP_TraceBrush;
7870 mod->TraceLine = Mod_Q3BSP_TraceLine;
7871 mod->TracePoint = Mod_Q3BSP_TracePoint;
7872 mod->PointSuperContents = Mod_Q3BSP_PointSuperContents;
7873 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
7874 mod->brush.TraceLineOfSight = Mod_Q3BSP_TraceLineOfSight;
7875 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
7876 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
7877 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
7878 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
7879 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
7880 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
7881 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
7882 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
7883 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
7884 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
7885 mod->brush.AmbientSoundLevelsForPoint = NULL;
7886 mod->brush.RoundUpToHullSize = NULL;
7887 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
7888 mod->Draw = R_Q1BSP_Draw;
7889 mod->DrawDepth = R_Q1BSP_DrawDepth;
7890 mod->DrawDebug = R_Q1BSP_DrawDebug;
7891 mod->DrawPrepass = R_Q1BSP_DrawPrepass;
7892 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
7893 mod->CompileShadowMap = R_Q1BSP_CompileShadowMap;
7894 mod->DrawShadowMap = R_Q1BSP_DrawShadowMap;
7895 mod->DrawLight = R_Q1BSP_DrawLight;
7897 mod_base = (unsigned char *)header;
7899 // swap all the lumps
7900 header->ident = LittleLong(header->ident);
7901 header->version = LittleLong(header->version);
7902 lumps = (header->version == Q3BSPVERSION_LIVE) ? Q3HEADER_LUMPS_LIVE : Q3HEADER_LUMPS;
7903 for (i = 0;i < lumps;i++)
7905 j = (header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs));
7906 if((char *) bufferend < (char *) buffer + j)
7907 Host_Error("Mod_Q3BSP_Load: %s has a lump that starts outside the file!", mod->name);
7908 j += (header->lumps[i].filelen = LittleLong(header->lumps[i].filelen));
7909 if((char *) bufferend < (char *) buffer + j)
7910 Host_Error("Mod_Q3BSP_Load: %s has a lump that ends outside the file!", mod->name);
7913 * NO, do NOT clear them!
7914 * they contain actual data referenced by other stuff.
7915 * Instead, before using the advertisements lump, check header->versio
7917 * Sorry, but otherwise it breaks memory of the first lump.
7918 for (i = lumps;i < Q3HEADER_LUMPS_MAX;i++)
7920 header->lumps[i].fileofs = 0;
7921 header->lumps[i].filelen = 0;
7925 mod->brush.qw_md4sum = 0;
7926 mod->brush.qw_md4sum2 = 0;
7927 for (i = 0;i < lumps;i++)
7929 if (i == Q3LUMP_ENTITIES)
7931 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
7932 if (i == Q3LUMP_PVS || i == Q3LUMP_LEAFS || i == Q3LUMP_NODES)
7934 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
7936 // all this checksumming can take a while, so let's send keepalives here too
7937 CL_KeepaliveMessage(false);
7940 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
7941 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
7942 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
7943 if (header->version == Q3BSPVERSION_IG)
7944 Mod_Q3BSP_LoadBrushSides_IG(&header->lumps[Q3LUMP_BRUSHSIDES]);
7946 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
7947 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
7948 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
7949 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
7950 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
7951 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS], &header->lumps[Q3LUMP_FACES]);
7952 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
7953 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
7954 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
7955 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
7956 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
7957 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
7958 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
7959 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
7960 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
7962 // the MakePortals code works fine on the q3bsp data as well
7963 if (mod_bsp_portalize.integer)
7964 Mod_Q1BSP_MakePortals();
7966 // FIXME: shader alpha should replace r_wateralpha support in q3bsp
7967 loadmodel->brush.supportwateralpha = true;
7969 loadmodel->brush.num_leafs = 0;
7970 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
7972 if (loadmodel->brush.numsubmodels)
7973 loadmodel->brush.submodels = (dp_model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
7976 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
7981 // duplicate the basic information
7982 dpsnprintf(name, sizeof(name), "*%i", i);
7983 mod = Mod_FindName(name, loadmodel->name);
7984 // copy the base model to this one
7986 // rename the clone back to its proper name
7987 strlcpy(mod->name, name, sizeof(mod->name));
7988 mod->brush.parentmodel = loadmodel;
7989 // textures and memory belong to the main model
7990 mod->texturepool = NULL;
7991 mod->mempool = NULL;
7992 mod->brush.GetPVS = NULL;
7993 mod->brush.FatPVS = NULL;
7994 mod->brush.BoxTouchingPVS = NULL;
7995 mod->brush.BoxTouchingLeafPVS = NULL;
7996 mod->brush.BoxTouchingVisibleLeafs = NULL;
7997 mod->brush.FindBoxClusters = NULL;
7998 mod->brush.LightPoint = NULL;
7999 mod->brush.AmbientSoundLevelsForPoint = NULL;
8001 mod->brush.submodel = i;
8002 if (loadmodel->brush.submodels)
8003 loadmodel->brush.submodels[i] = mod;
8005 // make the model surface list (used by shadowing/lighting)
8006 mod->firstmodelsurface = mod->brushq3.data_models[i].firstface;
8007 mod->nummodelsurfaces = mod->brushq3.data_models[i].numfaces;
8008 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
8009 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
8010 mod->sortedmodelsurfaces = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->sortedmodelsurfaces));
8011 Mod_MakeSortedSurfaces(mod);
8013 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
8014 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
8015 // enlarge the bounding box to enclose all geometry of this model,
8016 // because q3map2 sometimes lies (mostly to affect the lightgrid),
8017 // which can in turn mess up the farclip (as well as culling when
8018 // outside the level - an unimportant concern)
8020 //printf("Editing model %d... BEFORE re-bounding: %f %f %f - %f %f %f\n", i, mod->normalmins[0], mod->normalmins[1], mod->normalmins[2], mod->normalmaxs[0], mod->normalmaxs[1], mod->normalmaxs[2]);
8021 for (j = 0;j < mod->nummodelsurfaces;j++)
8023 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
8024 const float *v = mod->surfmesh.data_vertex3f + 3 * surface->num_firstvertex;
8026 if (!surface->num_vertices)
8028 for (k = 0;k < surface->num_vertices;k++, v += 3)
8030 mod->normalmins[0] = min(mod->normalmins[0], v[0]);
8031 mod->normalmins[1] = min(mod->normalmins[1], v[1]);
8032 mod->normalmins[2] = min(mod->normalmins[2], v[2]);
8033 mod->normalmaxs[0] = max(mod->normalmaxs[0], v[0]);
8034 mod->normalmaxs[1] = max(mod->normalmaxs[1], v[1]);
8035 mod->normalmaxs[2] = max(mod->normalmaxs[2], v[2]);
8038 //printf("Editing model %d... AFTER re-bounding: %f %f %f - %f %f %f\n", i, mod->normalmins[0], mod->normalmins[1], mod->normalmins[2], mod->normalmaxs[0], mod->normalmaxs[1], mod->normalmaxs[2]);
8039 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
8040 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
8041 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
8042 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
8043 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
8044 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
8045 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
8046 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
8047 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
8048 mod->yawmins[2] = mod->normalmins[2];
8049 mod->yawmaxs[2] = mod->normalmaxs[2];
8050 mod->radius = modelradius;
8051 mod->radius2 = modelradius * modelradius;
8053 // this gets altered below if sky or water is used
8054 mod->DrawSky = NULL;
8055 mod->DrawAddWaterPlanes = NULL;
8057 for (j = 0;j < mod->nummodelsurfaces;j++)
8058 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->basematerialflags & MATERIALFLAG_SKY)
8060 if (j < mod->nummodelsurfaces)
8061 mod->DrawSky = R_Q1BSP_DrawSky;
8063 for (j = 0;j < mod->nummodelsurfaces;j++)
8064 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
8066 if (j < mod->nummodelsurfaces)
8067 mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
8069 Mod_MakeCollisionBIH(mod, false, &mod->collision_bih);
8070 Mod_MakeCollisionBIH(mod, true, &mod->render_bih);
8072 // generate VBOs and other shared data before cloning submodels
8077 if (mod_q3bsp_sRGBlightmaps.integer)
8079 if (vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
8081 // actually we do in sRGB fallback with sRGB lightmaps: Image_sRGBFloatFromLinear_Lightmap(Image_LinearFloatFromsRGBFloat(x))
8082 // neutral point is at Image_sRGBFloatFromLinearFloat(0.5)
8083 // so we need to map Image_sRGBFloatFromLinearFloat(0.5) to 0.5
8084 // factor is 0.5 / Image_sRGBFloatFromLinearFloat(0.5)
8085 //loadmodel->lightmapscale *= 0.679942f; // fixes neutral level
8087 else // if this is NOT set, regular rendering looks right by this requirement anyway
8090 // we want color 1 to do the same as without sRGB
8091 // so, we want to map 1 to Image_LinearFloatFromsRGBFloat(2) instead of to 2
8092 loadmodel->lightmapscale *= 2.476923f; // fixes max level
8095 // neutral level 0.5 gets uploaded as sRGB and becomes Image_LinearFloatFromsRGBFloat(0.5)
8096 // we need to undo that
8097 loadmodel->lightmapscale *= 2.336f; // fixes neutral level
8101 Con_DPrintf("Stats for q3bsp model \"%s\": %i faces, %i nodes, %i leafs, %i clusters, %i clusterportals, mesh: %i vertices, %i triangles, %i surfaces\n", loadmodel->name, loadmodel->num_surfaces, loadmodel->brush.num_nodes, loadmodel->brush.num_leafs, mod->brush.num_pvsclusters, loadmodel->brush.num_portals, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->num_surfaces);
8104 void Mod_IBSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
8106 int i = LittleLong(((int *)buffer)[1]);
8107 if (i == Q3BSPVERSION || i == Q3BSPVERSION_IG || i == Q3BSPVERSION_LIVE)
8108 Mod_Q3BSP_Load(mod,buffer, bufferend);
8109 else if (i == Q2BSPVERSION)
8110 Mod_Q2BSP_Load(mod,buffer, bufferend);
8112 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i", i);
8115 void Mod_MAP_Load(dp_model_t *mod, void *buffer, void *bufferend)
8117 Host_Error("Mod_MAP_Load: not yet implemented");
8120 typedef struct objvertex_s
8131 static unsigned char nobsp_pvs[1] = {1};
8133 void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
8135 const char *textbase = (char *)buffer, *text = textbase;
8139 char materialname[MAX_QPATH];
8140 int i, j, l, numvertices, firstvertex, firsttriangle, elementindex, vertexindex, surfacevertices, surfacetriangles, surfaceelements, submodelindex = 0;
8141 int index1, index2, index3;
8142 objvertex_t vfirst, vprev, vcurrent;
8145 int numtriangles = 0;
8146 int maxtriangles = 0;
8147 objvertex_t *vertices = NULL;
8149 int maxtextures = 0, numtextures = 0, textureindex = 0;
8150 int maxv = 0, numv = 1;
8151 int maxvt = 0, numvt = 1;
8152 int maxvn = 0, numvn = 1;
8153 char *texturenames = NULL;
8154 float dist, modelradius, modelyawradius, yawradius;
8155 float *obj_v = NULL;
8156 float *obj_vt = NULL;
8157 float *obj_vn = NULL;
8161 objvertex_t *thisvertex = NULL;
8162 int vertexhashindex;
8163 int *vertexhashtable = NULL;
8164 objvertex_t *vertexhashdata = NULL;
8165 objvertex_t *vdata = NULL;
8166 int vertexhashsize = 0;
8167 int vertexhashcount = 0;
8168 skinfile_t *skinfiles = NULL;
8169 unsigned char *data = NULL;
8170 int *submodelfirstsurface;
8171 msurface_t *tempsurface;
8172 msurface_t *tempsurfaces;
8174 memset(&vfirst, 0, sizeof(vfirst));
8175 memset(&vprev, 0, sizeof(vprev));
8176 memset(&vcurrent, 0, sizeof(vcurrent));
8178 dpsnprintf(materialname, sizeof(materialname), "%s", loadmodel->name);
8180 loadmodel->modeldatatypestring = "OBJ";
8182 loadmodel->type = mod_obj;
8183 loadmodel->soundfromcenter = true;
8184 loadmodel->TraceBox = Mod_CollisionBIH_TraceBox;
8185 loadmodel->TraceBrush = Mod_CollisionBIH_TraceBrush;
8186 loadmodel->TraceLine = Mod_CollisionBIH_TraceLine;
8187 loadmodel->TracePoint = Mod_CollisionBIH_TracePoint_Mesh;
8188 loadmodel->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
8189 loadmodel->PointSuperContents = Mod_CollisionBIH_PointSuperContents_Mesh;
8190 loadmodel->brush.TraceLineOfSight = NULL;
8191 loadmodel->brush.SuperContentsFromNativeContents = NULL;
8192 loadmodel->brush.NativeContentsFromSuperContents = NULL;
8193 loadmodel->brush.GetPVS = NULL;
8194 loadmodel->brush.FatPVS = NULL;
8195 loadmodel->brush.BoxTouchingPVS = NULL;
8196 loadmodel->brush.BoxTouchingLeafPVS = NULL;
8197 loadmodel->brush.BoxTouchingVisibleLeafs = NULL;
8198 loadmodel->brush.FindBoxClusters = NULL;
8199 loadmodel->brush.LightPoint = NULL;
8200 loadmodel->brush.FindNonSolidLocation = NULL;
8201 loadmodel->brush.AmbientSoundLevelsForPoint = NULL;
8202 loadmodel->brush.RoundUpToHullSize = NULL;
8203 loadmodel->brush.PointInLeaf = NULL;
8204 loadmodel->Draw = R_Q1BSP_Draw;
8205 loadmodel->DrawDepth = R_Q1BSP_DrawDepth;
8206 loadmodel->DrawDebug = R_Q1BSP_DrawDebug;
8207 loadmodel->DrawPrepass = R_Q1BSP_DrawPrepass;
8208 loadmodel->GetLightInfo = R_Q1BSP_GetLightInfo;
8209 loadmodel->CompileShadowMap = R_Q1BSP_CompileShadowMap;
8210 loadmodel->DrawShadowMap = R_Q1BSP_DrawShadowMap;
8211 loadmodel->DrawLight = R_Q1BSP_DrawLight;
8213 skinfiles = Mod_LoadSkinFiles();
8214 if (loadmodel->numskins < 1)
8215 loadmodel->numskins = 1;
8217 // make skinscenes for the skins (no groups)
8218 loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
8219 for (i = 0;i < loadmodel->numskins;i++)
8221 loadmodel->skinscenes[i].firstframe = i;
8222 loadmodel->skinscenes[i].framecount = 1;
8223 loadmodel->skinscenes[i].loop = true;
8224 loadmodel->skinscenes[i].framerate = 10;
8230 // we always have model 0, i.e. the first "submodel"
8231 loadmodel->brush.numsubmodels = 1;
8233 // parse the OBJ text now
8236 static char emptyarg[1] = "";
8241 for (linelen = 0;text[linelen] && text[linelen] != '\r' && text[linelen] != '\n';linelen++)
8242 line[linelen] = text[linelen];
8244 for (argc = 0;argc < 4;argc++)
8245 argv[argc] = emptyarg;
8248 while (*s == ' ' || *s == '\t')
8258 while (*s == ' ' || *s == '\t')
8268 if (argv[0][0] == '#')
8270 if (!strcmp(argv[0], "v"))
8274 maxv = max(maxv * 2, 1024);
8275 obj_v = (float *)Mem_Realloc(tempmempool, obj_v, maxv * sizeof(float[3]));
8277 if(mod_obj_orientation.integer)
8279 obj_v[numv*3+0] = atof(argv[1]);
8280 obj_v[numv*3+2] = atof(argv[2]);
8281 obj_v[numv*3+1] = atof(argv[3]);
8285 obj_v[numv*3+0] = atof(argv[1]);
8286 obj_v[numv*3+1] = atof(argv[2]);
8287 obj_v[numv*3+2] = atof(argv[3]);
8291 else if (!strcmp(argv[0], "vt"))
8295 maxvt = max(maxvt * 2, 1024);
8296 obj_vt = (float *)Mem_Realloc(tempmempool, obj_vt, maxvt * sizeof(float[2]));
8298 obj_vt[numvt*2+0] = atof(argv[1]);
8299 obj_vt[numvt*2+1] = 1-atof(argv[2]);
8302 else if (!strcmp(argv[0], "vn"))
8306 maxvn = max(maxvn * 2, 1024);
8307 obj_vn = (float *)Mem_Realloc(tempmempool, obj_vn, maxvn * sizeof(float[3]));
8309 if(mod_obj_orientation.integer)
8311 obj_vn[numvn*3+0] = atof(argv[1]);
8312 obj_vn[numvn*3+2] = atof(argv[2]);
8313 obj_vn[numvn*3+1] = atof(argv[3]);
8317 obj_vn[numvn*3+0] = atof(argv[1]);
8318 obj_vn[numvn*3+1] = atof(argv[2]);
8319 obj_vn[numvn*3+2] = atof(argv[3]);
8323 else if (!strcmp(argv[0], "f"))
8327 if (maxtextures <= numtextures)
8329 maxtextures = max(maxtextures * 2, 256);
8330 texturenames = (char *)Mem_Realloc(loadmodel->mempool, texturenames, maxtextures * MAX_QPATH);
8332 textureindex = numtextures++;
8333 strlcpy(texturenames + textureindex*MAX_QPATH, loadmodel->name, MAX_QPATH);
8335 for (j = 1;j < argc;j++)
8337 index1 = atoi(argv[j]);
8338 while(argv[j][0] && argv[j][0] != '/')
8342 index2 = atoi(argv[j]);
8343 while(argv[j][0] && argv[j][0] != '/')
8347 index3 = atoi(argv[j]);
8348 // negative refers to a recent vertex
8349 // zero means not specified
8350 // positive means an absolute vertex index
8352 index1 = numv - index1;
8354 index2 = numvt - index2;
8356 index3 = numvn - index3;
8357 vcurrent.nextindex = -1;
8358 vcurrent.textureindex = textureindex;
8359 vcurrent.submodelindex = submodelindex;
8360 if (obj_v && index1 >= 0 && index1 < numv)
8361 VectorCopy(obj_v + 3*index1, vcurrent.v);
8362 if (obj_vt && index2 >= 0 && index2 < numvt)
8363 Vector2Copy(obj_vt + 2*index2, vcurrent.vt);
8364 if (obj_vn && index3 >= 0 && index3 < numvn)
8365 VectorCopy(obj_vn + 3*index3, vcurrent.vn);
8366 if (numtriangles == 0)
8368 VectorCopy(vcurrent.v, mins);
8369 VectorCopy(vcurrent.v, maxs);
8373 mins[0] = min(mins[0], vcurrent.v[0]);
8374 mins[1] = min(mins[1], vcurrent.v[1]);
8375 mins[2] = min(mins[2], vcurrent.v[2]);
8376 maxs[0] = max(maxs[0], vcurrent.v[0]);
8377 maxs[1] = max(maxs[1], vcurrent.v[1]);
8378 maxs[2] = max(maxs[2], vcurrent.v[2]);
8384 if (maxtriangles <= numtriangles)
8386 maxtriangles = max(maxtriangles * 2, 32768);
8387 vertices = (objvertex_t*)Mem_Realloc(loadmodel->mempool, vertices, maxtriangles * sizeof(objvertex_t[3]));
8389 if(mod_obj_orientation.integer)
8391 vertices[numtriangles*3+0] = vfirst;
8392 vertices[numtriangles*3+1] = vprev;
8393 vertices[numtriangles*3+2] = vcurrent;
8397 vertices[numtriangles*3+0] = vfirst;
8398 vertices[numtriangles*3+2] = vprev;
8399 vertices[numtriangles*3+1] = vcurrent;
8406 else if (!strcmp(argv[0], "o") || !strcmp(argv[0], "g"))
8408 submodelindex = atof(argv[1]);
8409 loadmodel->brush.numsubmodels = max(submodelindex + 1, loadmodel->brush.numsubmodels);
8411 else if (!strcmp(argv[0], "usemtl"))
8413 for (i = 0;i < numtextures;i++)
8414 if (!strcmp(texturenames+i*MAX_QPATH, argv[1]))
8416 if (i < numtextures)
8420 if (maxtextures <= numtextures)
8422 maxtextures = max(maxtextures * 2, 256);
8423 texturenames = (char *)Mem_Realloc(loadmodel->mempool, texturenames, maxtextures * MAX_QPATH);
8425 textureindex = numtextures++;
8426 strlcpy(texturenames + textureindex*MAX_QPATH, argv[1], MAX_QPATH);
8431 // now that we have the OBJ data loaded as-is, we can convert it
8433 // copy the model bounds, then enlarge the yaw and rotated bounds according to radius
8434 VectorCopy(mins, loadmodel->normalmins);
8435 VectorCopy(maxs, loadmodel->normalmaxs);
8436 dist = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
8437 modelyawradius = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
8438 modelyawradius = dist*dist+modelyawradius*modelyawradius;
8439 modelradius = max(fabs(loadmodel->normalmins[2]), fabs(loadmodel->normalmaxs[2]));
8440 modelradius = modelyawradius + modelradius * modelradius;
8441 modelyawradius = sqrt(modelyawradius);
8442 modelradius = sqrt(modelradius);
8443 loadmodel->yawmins[0] = loadmodel->yawmins[1] = -modelyawradius;
8444 loadmodel->yawmins[2] = loadmodel->normalmins[2];
8445 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius;
8446 loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
8447 loadmodel->rotatedmins[0] = loadmodel->rotatedmins[1] = loadmodel->rotatedmins[2] = -modelradius;
8448 loadmodel->rotatedmaxs[0] = loadmodel->rotatedmaxs[1] = loadmodel->rotatedmaxs[2] = modelradius;
8449 loadmodel->radius = modelradius;
8450 loadmodel->radius2 = modelradius * modelradius;
8452 // allocate storage for triangles
8453 loadmodel->surfmesh.data_element3i = (int *)Mem_Alloc(loadmodel->mempool, numtriangles * sizeof(int[3]));
8454 // allocate vertex hash structures to build an optimal vertex subset
8455 vertexhashsize = numtriangles*2;
8456 vertexhashtable = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int) * vertexhashsize);
8457 memset(vertexhashtable, 0xFF, sizeof(int) * vertexhashsize);
8458 vertexhashdata = (objvertex_t *)Mem_Alloc(loadmodel->mempool, sizeof(*vertexhashdata) * numtriangles*3);
8459 vertexhashcount = 0;
8461 // gather surface stats for assigning vertex/triangle ranges
8465 loadmodel->num_surfaces = 0;
8466 // allocate storage for the worst case number of surfaces, later we resize
8467 tempsurfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, numtextures * loadmodel->brush.numsubmodels * sizeof(msurface_t));
8468 submodelfirstsurface = (int *)Mem_Alloc(loadmodel->mempool, (loadmodel->brush.numsubmodels+1) * sizeof(int));
8469 tempsurface = tempsurfaces;
8470 for (submodelindex = 0;submodelindex < loadmodel->brush.numsubmodels;submodelindex++)
8472 submodelfirstsurface[submodelindex] = loadmodel->num_surfaces;
8473 for (textureindex = 0;textureindex < numtextures;textureindex++)
8475 for (vertexindex = 0;vertexindex < numtriangles*3;vertexindex++)
8477 thisvertex = vertices + vertexindex;
8478 if (thisvertex->submodelindex == submodelindex && thisvertex->textureindex == textureindex)
8481 // skip the surface creation if there are no triangles for it
8482 if (vertexindex == numtriangles*3)
8484 // create a surface for these vertices
8485 surfacevertices = 0;
8486 surfaceelements = 0;
8487 // we hack in a texture index in the surface to be fixed up later...
8488 tempsurface->texture = (texture_t *)((size_t)textureindex);
8489 // calculate bounds as we go
8490 VectorCopy(thisvertex->v, tempsurface->mins);
8491 VectorCopy(thisvertex->v, tempsurface->maxs);
8492 for (;vertexindex < numtriangles*3;vertexindex++)
8494 thisvertex = vertices + vertexindex;
8495 if (thisvertex->submodelindex != submodelindex)
8497 if (thisvertex->textureindex != textureindex)
8499 // add vertex to surface bounds
8500 tempsurface->mins[0] = min(tempsurface->mins[0], thisvertex->v[0]);
8501 tempsurface->mins[1] = min(tempsurface->mins[1], thisvertex->v[1]);
8502 tempsurface->mins[2] = min(tempsurface->mins[2], thisvertex->v[2]);
8503 tempsurface->maxs[0] = max(tempsurface->maxs[0], thisvertex->v[0]);
8504 tempsurface->maxs[1] = max(tempsurface->maxs[1], thisvertex->v[1]);
8505 tempsurface->maxs[2] = max(tempsurface->maxs[2], thisvertex->v[2]);
8506 // add the vertex if it is not found in the merged set, and
8507 // get its index (triangle element) for the surface
8508 vertexhashindex = (unsigned int)(thisvertex->v[0] * 3571 + thisvertex->v[0] * 1777 + thisvertex->v[0] * 457) % (unsigned int)vertexhashsize;
8509 for (i = vertexhashtable[vertexhashindex];i >= 0;i = vertexhashdata[i].nextindex)
8511 vdata = vertexhashdata + i;
8512 if (vdata->submodelindex == thisvertex->submodelindex && vdata->textureindex == thisvertex->textureindex && VectorCompare(thisvertex->v, vdata->v) && VectorCompare(thisvertex->vn, vdata->vn) && Vector2Compare(thisvertex->vt, vdata->vt))
8517 i = vertexhashcount++;
8518 vdata = vertexhashdata + i;
8519 *vdata = *thisvertex;
8520 vdata->nextindex = vertexhashtable[vertexhashindex];
8521 vertexhashtable[vertexhashindex] = i;
8524 loadmodel->surfmesh.data_element3i[elementindex++] = i;
8527 surfacetriangles = surfaceelements / 3;
8528 tempsurface->num_vertices = surfacevertices;
8529 tempsurface->num_triangles = surfacetriangles;
8530 tempsurface->num_firstvertex = firstvertex;
8531 tempsurface->num_firsttriangle = firsttriangle;
8532 firstvertex += tempsurface->num_vertices;
8533 firsttriangle += tempsurface->num_triangles;
8535 loadmodel->num_surfaces++;
8538 submodelfirstsurface[submodelindex] = loadmodel->num_surfaces;
8539 numvertices = firstvertex;
8540 loadmodel->data_surfaces = (msurface_t *)Mem_Realloc(loadmodel->mempool, tempsurfaces, loadmodel->num_surfaces * sizeof(msurface_t));
8541 tempsurfaces = NULL;
8543 // allocate storage for final mesh data
8544 loadmodel->num_textures = numtextures * loadmodel->numskins;
8545 loadmodel->num_texturesperskin = numtextures;
8546 data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + numtriangles * sizeof(int[3]) + (numvertices <= 65536 ? numtriangles * sizeof(unsigned short[3]) : 0) + numvertices * sizeof(float[14]) + loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
8547 loadmodel->brush.submodels = (dp_model_t **)data;data += loadmodel->brush.numsubmodels * sizeof(dp_model_t *);
8548 loadmodel->sortedmodelsurfaces = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
8549 loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
8550 loadmodel->surfmesh.num_vertices = numvertices;
8551 loadmodel->surfmesh.num_triangles = numtriangles;
8552 loadmodel->surfmesh.data_vertex3f = (float *)data;data += numvertices * sizeof(float[3]);
8553 loadmodel->surfmesh.data_svector3f = (float *)data;data += numvertices * sizeof(float[3]);
8554 loadmodel->surfmesh.data_tvector3f = (float *)data;data += numvertices * sizeof(float[3]);
8555 loadmodel->surfmesh.data_normal3f = (float *)data;data += numvertices * sizeof(float[3]);
8556 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += numvertices * sizeof(float[2]);
8558 if (loadmodel->surfmesh.num_vertices <= 65536) {
8559 loadmodel->surfmesh.data_element3s = (unsigned short *)data;data += loadmodel->surfmesh.num_triangles * sizeof(unsigned short[3]);
8562 for (j = 0;j < loadmodel->surfmesh.num_vertices;j++)
8564 VectorCopy(vertexhashdata[j].v, loadmodel->surfmesh.data_vertex3f + 3*j);
8565 VectorCopy(vertexhashdata[j].vn, loadmodel->surfmesh.data_normal3f + 3*j);
8566 Vector2Copy(vertexhashdata[j].vt, loadmodel->surfmesh.data_texcoordtexture2f + 2*j);
8569 // load the textures
8570 for (textureindex = 0;textureindex < numtextures;textureindex++)
8571 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + textureindex, skinfiles, texturenames + textureindex*MAX_QPATH, texturenames + textureindex*MAX_QPATH);
8572 Mod_FreeSkinFiles(skinfiles);
8574 // set the surface textures to their real values now that we loaded them...
8575 for (i = 0;i < loadmodel->num_surfaces;i++)
8576 loadmodel->data_surfaces[i].texture = loadmodel->data_textures + (size_t)loadmodel->data_surfaces[i].texture;
8580 Mem_Free(texturenames);
8584 Mem_Free(vertexhashtable);
8585 Mem_Free(vertexhashdata);
8587 // compute all the mesh information that was not loaded from the file
8588 if (loadmodel->surfmesh.data_element3s)
8589 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
8590 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
8591 Mod_ValidateElements(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_element3s, loadmodel->surfmesh.num_triangles, 0, loadmodel->surfmesh.num_vertices, __FILE__, __LINE__);
8592 // generate normals if the file did not have them
8593 if (!VectorLength2(loadmodel->surfmesh.data_normal3f))
8594 Mod_BuildNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_normal3f, r_smoothnormals_areaweighting.integer != 0);
8595 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, r_smoothnormals_areaweighting.integer != 0);
8597 // if this is a worldmodel and has no BSP tree, create a fake one for the purpose
8598 loadmodel->brush.num_visleafs = 1;
8599 loadmodel->brush.num_leafs = 1;
8600 loadmodel->brush.num_nodes = 0;
8601 loadmodel->brush.num_leafsurfaces = loadmodel->num_surfaces;
8602 loadmodel->brush.data_leafs = (mleaf_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafs * sizeof(mleaf_t));
8603 loadmodel->brush.data_nodes = (mnode_t *)loadmodel->brush.data_leafs;
8604 loadmodel->brush.num_pvsclusters = 1;
8605 loadmodel->brush.num_pvsclusterbytes = 1;
8606 loadmodel->brush.data_pvsclusters = nobsp_pvs;
8607 //if (loadmodel->num_nodes) loadmodel->data_nodes = (mnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_nodes * sizeof(mnode_t));
8608 //loadmodel->data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->num_leafsurfaces * sizeof(int));
8609 loadmodel->brush.data_leafsurfaces = loadmodel->sortedmodelsurfaces;
8610 VectorCopy(loadmodel->normalmins, loadmodel->brush.data_leafs->mins);
8611 VectorCopy(loadmodel->normalmaxs, loadmodel->brush.data_leafs->maxs);
8612 loadmodel->brush.data_leafs->combinedsupercontents = 0; // FIXME?
8613 loadmodel->brush.data_leafs->clusterindex = 0;
8614 loadmodel->brush.data_leafs->areaindex = 0;
8615 loadmodel->brush.data_leafs->numleafsurfaces = loadmodel->brush.num_leafsurfaces;
8616 loadmodel->brush.data_leafs->firstleafsurface = loadmodel->brush.data_leafsurfaces;
8617 loadmodel->brush.data_leafs->numleafbrushes = 0;
8618 loadmodel->brush.data_leafs->firstleafbrush = NULL;
8619 loadmodel->brush.supportwateralpha = true;
8621 if (loadmodel->brush.numsubmodels)
8622 loadmodel->brush.submodels = (dp_model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
8625 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
8630 // duplicate the basic information
8631 dpsnprintf(name, sizeof(name), "*%i", i);
8632 mod = Mod_FindName(name, loadmodel->name);
8633 // copy the base model to this one
8635 // rename the clone back to its proper name
8636 strlcpy(mod->name, name, sizeof(mod->name));
8637 mod->brush.parentmodel = loadmodel;
8638 // textures and memory belong to the main model
8639 mod->texturepool = NULL;
8640 mod->mempool = NULL;
8641 mod->brush.GetPVS = NULL;
8642 mod->brush.FatPVS = NULL;
8643 mod->brush.BoxTouchingPVS = NULL;
8644 mod->brush.BoxTouchingLeafPVS = NULL;
8645 mod->brush.BoxTouchingVisibleLeafs = NULL;
8646 mod->brush.FindBoxClusters = NULL;
8647 mod->brush.LightPoint = NULL;
8648 mod->brush.AmbientSoundLevelsForPoint = NULL;
8650 mod->brush.submodel = i;
8651 if (loadmodel->brush.submodels)
8652 loadmodel->brush.submodels[i] = mod;
8654 // make the model surface list (used by shadowing/lighting)
8655 mod->firstmodelsurface = submodelfirstsurface[i];
8656 mod->nummodelsurfaces = submodelfirstsurface[i+1] - submodelfirstsurface[i];
8657 mod->firstmodelbrush = 0;
8658 mod->nummodelbrushes = 0;
8659 mod->sortedmodelsurfaces = loadmodel->sortedmodelsurfaces + mod->firstmodelsurface;
8660 Mod_MakeSortedSurfaces(mod);
8662 VectorClear(mod->normalmins);
8663 VectorClear(mod->normalmaxs);
8665 for (j = 0;j < mod->nummodelsurfaces;j++)
8667 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
8668 const float *v3f = mod->surfmesh.data_vertex3f + 3 * surface->num_firstvertex;
8670 if (!surface->num_vertices)
8675 VectorCopy(v3f, mod->normalmins);
8676 VectorCopy(v3f, mod->normalmaxs);
8678 for (k = 0;k < surface->num_vertices;k++, v3f += 3)
8680 mod->normalmins[0] = min(mod->normalmins[0], v3f[0]);
8681 mod->normalmins[1] = min(mod->normalmins[1], v3f[1]);
8682 mod->normalmins[2] = min(mod->normalmins[2], v3f[2]);
8683 mod->normalmaxs[0] = max(mod->normalmaxs[0], v3f[0]);
8684 mod->normalmaxs[1] = max(mod->normalmaxs[1], v3f[1]);
8685 mod->normalmaxs[2] = max(mod->normalmaxs[2], v3f[2]);
8688 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
8689 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
8690 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
8691 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
8692 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
8693 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
8694 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
8695 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
8696 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
8697 mod->yawmins[2] = mod->normalmins[2];
8698 mod->yawmaxs[2] = mod->normalmaxs[2];
8699 mod->radius = modelradius;
8700 mod->radius2 = modelradius * modelradius;
8702 // this gets altered below if sky or water is used
8703 mod->DrawSky = NULL;
8704 mod->DrawAddWaterPlanes = NULL;
8706 for (j = 0;j < mod->nummodelsurfaces;j++)
8707 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->basematerialflags & MATERIALFLAG_SKY)
8709 if (j < mod->nummodelsurfaces)
8710 mod->DrawSky = R_Q1BSP_DrawSky;
8712 for (j = 0;j < mod->nummodelsurfaces;j++)
8713 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
8715 if (j < mod->nummodelsurfaces)
8716 mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
8718 Mod_MakeCollisionBIH(mod, true, &mod->collision_bih);
8719 mod->render_bih = mod->collision_bih;
8721 // generate VBOs and other shared data before cloning submodels
8726 Mem_Free(submodelfirstsurface);
8728 Con_DPrintf("Stats for obj model \"%s\": %i faces, %i nodes, %i leafs, %i clusters, %i clusterportals, mesh: %i vertices, %i triangles, %i surfaces\n", loadmodel->name, loadmodel->num_surfaces, loadmodel->brush.num_nodes, loadmodel->brush.num_leafs, mod->brush.num_pvsclusters, loadmodel->brush.num_portals, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->num_surfaces);