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_trippy = {CF_CLIENT, "r_trippy", "0", "easter egg"};
30 //cvar_t r_subdivide_size = {CF_CLIENT | CF_ARCHIVE, "r_subdivide_size", "128", "how large water polygons should be (smaller values produce more polygons which give better warping effects)"};
31 cvar_t r_novis = {CF_CLIENT, "r_novis", "0", "draws whole level, see also sv_cullentities_pvs 0"};
32 cvar_t r_nosurftextures = {CF_CLIENT, "r_nosurftextures", "0", "pretends there was no texture lump found in the q1bsp/hlbsp loading (useful for debugging this rare case)"};
34 cvar_t r_subdivisions_tolerance = {CF_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)"};
35 cvar_t r_subdivisions_mintess = {CF_CLIENT, "r_subdivisions_mintess", "0", "minimum number of subdivisions (values above 0 will smooth curves that don't need it)"};
36 cvar_t r_subdivisions_maxtess = {CF_CLIENT, "r_subdivisions_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
37 cvar_t r_subdivisions_maxvertices = {CF_CLIENT, "r_subdivisions_maxvertices", "65536", "maximum vertices allowed per subdivided curve"};
38 cvar_t mod_q3bsp_curves_subdivisions_tolerance = {CF_CLIENT | CF_SERVER, "mod_q3bsp_curves_subdivisions_tolerance", "15", "maximum error tolerance on curve subdivision for collision purposes (usually a larger error tolerance than for rendering)"};
39 cvar_t mod_q3bsp_curves_subdivisions_mintess = {CF_CLIENT | CF_SERVER, "mod_q3bsp_curves_subdivisions_mintess", "0", "minimum number of subdivisions for collision purposes (values above 0 will smooth curves that don't need it)"};
40 cvar_t mod_q3bsp_curves_subdivisions_maxtess = {CF_CLIENT | CF_SERVER, "mod_q3bsp_curves_subdivisions_maxtess", "1024", "maximum number of subdivisions for collision purposes (prevents curves beyond a certain detail level, limits smoothing)"};
41 cvar_t mod_q3bsp_curves_subdivisions_maxvertices = {CF_CLIENT | CF_SERVER, "mod_q3bsp_curves_subdivisions_maxvertices", "4225", "maximum vertices allowed per subdivided curve for collision purposes"};
42 cvar_t mod_q3bsp_curves_collisions = {CF_CLIENT | CF_SERVER, "mod_q3bsp_curves_collisions", "1", "enables collisions with curves (SLOW)"};
43 cvar_t mod_q3bsp_optimizedtraceline = {CF_CLIENT | CF_SERVER, "mod_q3bsp_optimizedtraceline", "1", "whether to use optimized traceline code for line traces (as opposed to tracebox code)"};
44 cvar_t mod_q3bsp_lightmapmergepower = {CF_CLIENT | CF_ARCHIVE, "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, ..."};
45 cvar_t mod_q3bsp_nolightmaps = {CF_CLIENT | CF_ARCHIVE, "mod_q3bsp_nolightmaps", "0", "do not load lightmaps in Q3BSP maps (to save video RAM, but be warned: it looks ugly)"};
46 cvar_t mod_q3bsp_tracelineofsight_brushes = {CF_CLIENT | CF_SERVER, "mod_q3bsp_tracelineofsight_brushes", "0", "enables culling of entities behind detail brushes, curves, etc"};
47 cvar_t mod_q3bsp_sRGBlightmaps = {CF_CLIENT, "mod_q3bsp_sRGBlightmaps", "0", "treat lightmaps from Q3 maps as sRGB when vid_sRGB is active"};
48 cvar_t mod_q3bsp_lightgrid_texture = {CF_CLIENT, "mod_q3bsp_lightgrid_texture", "1", "directly apply the lightgrid as a global texture rather than only reading it at the entity origin"};
49 cvar_t mod_q3bsp_lightgrid_world_surfaces = {CF_CLIENT, "mod_q3bsp_lightgrid_world_surfaces", "0", "apply lightgrid lighting to the world bsp geometry rather than using lightmaps (experimental/debug tool)"};
50 cvar_t mod_q3bsp_lightgrid_bsp_surfaces = {CF_CLIENT, "mod_q3bsp_lightgrid_bsp_surfaces", "0", "apply lightgrid lighting to bsp models other than the world rather than using their lightmaps (experimental/debug tool)"};
51 cvar_t mod_noshader_default_offsetmapping = {CF_CLIENT | CF_ARCHIVE, "mod_noshader_default_offsetmapping", "1", "use offsetmapping by default on all surfaces that are not using q3 shader files"};
52 cvar_t mod_q3shader_default_offsetmapping = {CF_CLIENT | CF_ARCHIVE, "mod_q3shader_default_offsetmapping", "1", "use offsetmapping by default on all surfaces that are using q3 shader files"};
53 cvar_t mod_q3shader_default_offsetmapping_scale = {CF_CLIENT | CF_ARCHIVE, "mod_q3shader_default_offsetmapping_scale", "1", "default scale used for offsetmapping"};
54 cvar_t mod_q3shader_default_offsetmapping_bias = {CF_CLIENT | CF_ARCHIVE, "mod_q3shader_default_offsetmapping_bias", "0", "default bias used for offsetmapping"};
55 cvar_t mod_q3shader_default_polygonfactor = {CF_CLIENT, "mod_q3shader_default_polygonfactor", "0", "biases depth values of 'polygonoffset' shaders to prevent z-fighting artifacts"};
56 cvar_t mod_q3shader_default_polygonoffset = {CF_CLIENT, "mod_q3shader_default_polygonoffset", "-2", "biases depth values of 'polygonoffset' shaders to prevent z-fighting artifacts"};
57 cvar_t mod_q3shader_default_refractive_index = {CF_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"};
58 cvar_t mod_q3shader_force_addalpha = {CF_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"};
59 cvar_t mod_q3shader_force_terrain_alphaflag = {CF_CLIENT, "mod_q3shader_force_terrain_alphaflag", "0", "for multilayered terrain shaders force TEXF_ALPHA flag on both layers"};
61 cvar_t mod_q2bsp_littransparentsurfaces = {CF_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"};
63 cvar_t mod_q1bsp_polygoncollisions = {CF_CLIENT | CF_SERVER, "mod_q1bsp_polygoncollisions", "0", "disables use of precomputed cliphulls and instead collides with polygons (uses Bounding Interval Hierarchy optimizations)"};
64 cvar_t mod_q1bsp_zero_hullsize_cutoff = {CF_CLIENT | CF_SERVER, "mod_q1bsp_zero_hullsize_cutoff", "3", "bboxes with an X dimension smaller than this will use the smallest cliphull (0x0x0) instead of being rounded up to the player cliphull (32x32x56) in Q1BSP, or crouching player (32x32x36) in HLBSP"};
66 cvar_t mod_bsp_portalize = {CF_CLIENT, "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_dlight_portalculling, r_shadow_realtime_world_compileportalculling"};
67 cvar_t mod_recalculatenodeboxes = {CF_CLIENT | CF_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"};
69 cvar_t mod_obj_orientation = {CF_CLIENT | CF_SERVER, "mod_obj_orientation", "1", "fix orientation of OBJ models to the usual conventions (if zero, use coordinates as is)"};
71 static texture_t mod_q1bsp_texture_solid;
72 static texture_t mod_q1bsp_texture_sky;
73 static texture_t mod_q1bsp_texture_lava;
74 static texture_t mod_q1bsp_texture_slime;
75 static texture_t mod_q1bsp_texture_water;
77 static qbool Mod_Q3BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end, const vec3_t acceptmins, const vec3_t acceptmaxs);
79 void Mod_BrushInit(void)
81 // Cvar_RegisterVariable(&r_subdivide_size);
82 Cvar_RegisterVariable(&mod_bsp_portalize);
83 Cvar_RegisterVariable(&r_novis);
84 Cvar_RegisterVariable(&r_nosurftextures);
85 Cvar_RegisterVariable(&r_subdivisions_tolerance);
86 Cvar_RegisterVariable(&r_subdivisions_mintess);
87 Cvar_RegisterVariable(&r_subdivisions_maxtess);
88 Cvar_RegisterVariable(&r_subdivisions_maxvertices);
89 Cvar_RegisterVariable(&mod_q3bsp_curves_subdivisions_tolerance);
90 Cvar_RegisterVariable(&mod_q3bsp_curves_subdivisions_mintess);
91 Cvar_RegisterVariable(&mod_q3bsp_curves_subdivisions_maxtess);
92 Cvar_RegisterVariable(&mod_q3bsp_curves_subdivisions_maxvertices);
93 Cvar_RegisterVariable(&r_trippy);
94 Cvar_RegisterVariable(&mod_noshader_default_offsetmapping);
95 Cvar_RegisterVariable(&mod_obj_orientation);
96 Cvar_RegisterVariable(&mod_q2bsp_littransparentsurfaces);
97 Cvar_RegisterVariable(&mod_q3bsp_curves_collisions);
98 Cvar_RegisterVariable(&mod_q3bsp_optimizedtraceline);
99 Cvar_RegisterVariable(&mod_q3bsp_lightmapmergepower);
100 Cvar_RegisterVariable(&mod_q3bsp_nolightmaps);
101 Cvar_RegisterVariable(&mod_q3bsp_sRGBlightmaps);
102 Cvar_RegisterVariable(&mod_q3bsp_lightgrid_texture);
103 Cvar_RegisterVariable(&mod_q3bsp_lightgrid_world_surfaces);
104 Cvar_RegisterVariable(&mod_q3bsp_lightgrid_bsp_surfaces);
105 Cvar_RegisterVariable(&mod_q3bsp_tracelineofsight_brushes);
106 Cvar_RegisterVariable(&mod_q3shader_default_offsetmapping);
107 Cvar_RegisterVariable(&mod_q3shader_default_offsetmapping_scale);
108 Cvar_RegisterVariable(&mod_q3shader_default_offsetmapping_bias);
109 Cvar_RegisterVariable(&mod_q3shader_default_polygonfactor);
110 Cvar_RegisterVariable(&mod_q3shader_default_polygonoffset);
111 Cvar_RegisterVariable(&mod_q3shader_default_refractive_index);
112 Cvar_RegisterVariable(&mod_q3shader_force_addalpha);
113 Cvar_RegisterVariable(&mod_q3shader_force_terrain_alphaflag);
114 Cvar_RegisterVariable(&mod_q1bsp_polygoncollisions);
115 Cvar_RegisterVariable(&mod_q1bsp_zero_hullsize_cutoff);
116 Cvar_RegisterVariable(&mod_recalculatenodeboxes);
118 // these games were made for older DP engines and are no longer
119 // maintained; use this hack to show their textures properly
120 if(gamemode == GAME_NEXUIZ)
121 Cvar_SetQuick(&mod_q3shader_force_addalpha, "1");
123 memset(&mod_q1bsp_texture_solid, 0, sizeof(mod_q1bsp_texture_solid));
124 strlcpy(mod_q1bsp_texture_solid.name, "solid" , sizeof(mod_q1bsp_texture_solid.name));
125 mod_q1bsp_texture_solid.surfaceflags = 0;
126 mod_q1bsp_texture_solid.supercontents = SUPERCONTENTS_SOLID;
128 mod_q1bsp_texture_sky = mod_q1bsp_texture_solid;
129 strlcpy(mod_q1bsp_texture_sky.name, "sky", sizeof(mod_q1bsp_texture_sky.name));
130 mod_q1bsp_texture_sky.surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
131 mod_q1bsp_texture_sky.supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
133 mod_q1bsp_texture_lava = mod_q1bsp_texture_solid;
134 strlcpy(mod_q1bsp_texture_lava.name, "*lava", sizeof(mod_q1bsp_texture_lava.name));
135 mod_q1bsp_texture_lava.surfaceflags = Q3SURFACEFLAG_NOMARKS;
136 mod_q1bsp_texture_lava.supercontents = SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
138 mod_q1bsp_texture_slime = mod_q1bsp_texture_solid;
139 strlcpy(mod_q1bsp_texture_slime.name, "*slime", sizeof(mod_q1bsp_texture_slime.name));
140 mod_q1bsp_texture_slime.surfaceflags = Q3SURFACEFLAG_NOMARKS;
141 mod_q1bsp_texture_slime.supercontents = SUPERCONTENTS_SLIME;
143 mod_q1bsp_texture_water = mod_q1bsp_texture_solid;
144 strlcpy(mod_q1bsp_texture_water.name, "*water", sizeof(mod_q1bsp_texture_water.name));
145 mod_q1bsp_texture_water.surfaceflags = Q3SURFACEFLAG_NOMARKS;
146 mod_q1bsp_texture_water.supercontents = SUPERCONTENTS_WATER;
149 static mleaf_t *Mod_BSP_PointInLeaf(model_t *model, const vec3_t p)
156 // LadyHavoc: modified to start at first clip node,
157 // in other words: first node of the (sub)model
158 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
160 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
162 return (mleaf_t *)node;
165 static void Mod_Q1BSP_AmbientSoundLevelsForPoint(model_t *model, const vec3_t p, unsigned char *out, int outsize)
169 leaf = Mod_BSP_PointInLeaf(model, p);
172 i = min(outsize, (int)sizeof(leaf->ambient_sound_level));
175 memcpy(out, leaf->ambient_sound_level, i);
181 memset(out, 0, outsize);
184 static int Mod_BSP_FindBoxClusters(model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
187 int nodestackindex = 0;
188 mnode_t *node, *nodestack[1024];
189 if (!model->brush.num_pvsclusters)
191 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
197 // node - recurse down the BSP tree
198 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
202 return -1; // ERROR: NAN bounding box!
203 // box is on one side of plane, take that path
204 node = node->children[sides-1];
208 // box crosses plane, take one path and remember the other
209 if (nodestackindex < 1024)
210 nodestack[nodestackindex++] = node->children[0];
211 node = node->children[1];
217 // leaf - add clusterindex to list
218 if (numclusters < maxclusters)
219 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
223 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
227 if (nodestackindex < 1024)
228 nodestack[nodestackindex++] = node->children[0];
229 node = node->children[1];
234 // leaf - add clusterindex to list
235 if (numclusters < maxclusters)
236 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
241 // try another path we didn't take earlier
242 if (nodestackindex == 0)
244 node = nodestack[--nodestackindex];
246 // return number of clusters found (even if more than the maxclusters)
250 static int Mod_BSP_BoxTouchingPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
252 int nodestackindex = 0;
253 mnode_t *node, *nodestack[1024];
254 if (!model->brush.num_pvsclusters)
256 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
262 // node - recurse down the BSP tree
263 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
267 return -1; // ERROR: NAN bounding box!
268 // box is on one side of plane, take that path
269 node = node->children[sides-1];
273 // box crosses plane, take one path and remember the other
274 if (nodestackindex < 1024)
275 nodestack[nodestackindex++] = node->children[0];
276 node = node->children[1];
282 // leaf - check cluster bit
283 int clusterindex = ((mleaf_t *)node)->clusterindex;
284 if (CHECKPVSBIT(pvs, clusterindex))
286 // it is visible, return immediately with the news
291 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
295 if (nodestackindex < 1024)
296 nodestack[nodestackindex++] = node->children[0];
297 node = node->children[1];
302 // leaf - check cluster bit
303 int clusterindex = ((mleaf_t *)node)->clusterindex;
304 if (CHECKPVSBIT(pvs, clusterindex))
306 // it is visible, return immediately with the news
312 // nothing to see here, try another path we didn't take earlier
313 if (nodestackindex == 0)
315 node = nodestack[--nodestackindex];
321 static int Mod_BSP_BoxTouchingLeafPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
323 int nodestackindex = 0;
324 mnode_t *node, *nodestack[1024];
325 if (!model->brush.num_leafs)
327 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
333 // node - recurse down the BSP tree
334 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
338 return -1; // ERROR: NAN bounding box!
339 // box is on one side of plane, take that path
340 node = node->children[sides-1];
344 // box crosses plane, take one path and remember the other
345 if (nodestackindex < 1024)
346 nodestack[nodestackindex++] = node->children[0];
347 node = node->children[1];
353 // leaf - check cluster bit
354 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
355 if (CHECKPVSBIT(pvs, clusterindex))
357 // it is visible, return immediately with the news
362 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
366 if (nodestackindex < 1024)
367 nodestack[nodestackindex++] = node->children[0];
368 node = node->children[1];
373 // leaf - check cluster bit
374 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
375 if (CHECKPVSBIT(pvs, clusterindex))
377 // it is visible, return immediately with the news
383 // nothing to see here, try another path we didn't take earlier
384 if (nodestackindex == 0)
386 node = nodestack[--nodestackindex];
392 static int Mod_BSP_BoxTouchingVisibleLeafs(model_t *model, const unsigned char *visibleleafs, const vec3_t mins, const vec3_t maxs)
394 int nodestackindex = 0;
395 mnode_t *node, *nodestack[1024];
396 if (!model->brush.num_leafs)
398 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
404 // node - recurse down the BSP tree
405 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
409 return -1; // ERROR: NAN bounding box!
410 // box is on one side of plane, take that path
411 node = node->children[sides-1];
415 // box crosses plane, take one path and remember the other
416 if (nodestackindex < 1024)
417 nodestack[nodestackindex++] = node->children[0];
418 node = node->children[1];
424 // leaf - check if it is visible
425 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
427 // it is visible, return immediately with the news
432 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
436 if (nodestackindex < 1024)
437 nodestack[nodestackindex++] = node->children[0];
438 node = node->children[1];
443 // leaf - check if it is visible
444 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
446 // it is visible, return immediately with the news
452 // nothing to see here, try another path we didn't take earlier
453 if (nodestackindex == 0)
455 node = nodestack[--nodestackindex];
461 typedef struct findnonsolidlocationinfo_s
464 vec3_t absmin, absmax;
470 findnonsolidlocationinfo_t;
472 static void Mod_BSP_FindNonSolidLocation_r_Triangle(findnonsolidlocationinfo_t *info, msurface_t *surface, int k)
475 float dist, f, vert[3][3], edge[3][3], facenormal[3], edgenormal[3][3], point[3];
477 tri = (info->model->surfmesh.data_element3i + 3 * surface->num_firsttriangle) + k * 3;
478 VectorCopy((info->model->surfmesh.data_vertex3f + tri[0] * 3), vert[0]);
479 VectorCopy((info->model->surfmesh.data_vertex3f + tri[1] * 3), vert[1]);
480 VectorCopy((info->model->surfmesh.data_vertex3f + tri[2] * 3), vert[2]);
481 VectorSubtract(vert[1], vert[0], edge[0]);
482 VectorSubtract(vert[2], vert[1], edge[1]);
483 CrossProduct(edge[1], edge[0], facenormal);
484 if (facenormal[0] || facenormal[1] || facenormal[2])
486 VectorNormalize(facenormal);
487 f = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
488 if (f <= info->bestdist && f >= -info->bestdist)
490 VectorSubtract(vert[0], vert[2], edge[2]);
491 VectorNormalize(edge[0]);
492 VectorNormalize(edge[1]);
493 VectorNormalize(edge[2]);
494 CrossProduct(facenormal, edge[0], edgenormal[0]);
495 CrossProduct(facenormal, edge[1], edgenormal[1]);
496 CrossProduct(facenormal, edge[2], edgenormal[2]);
498 if (DotProduct(info->center, edgenormal[0]) < DotProduct(vert[0], edgenormal[0])
499 && DotProduct(info->center, edgenormal[1]) < DotProduct(vert[1], edgenormal[1])
500 && DotProduct(info->center, edgenormal[2]) < DotProduct(vert[2], edgenormal[2]))
502 // we got lucky, the center is within the face
503 dist = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
507 if (info->bestdist > dist)
509 info->bestdist = dist;
510 VectorScale(facenormal, (info->radius - -dist), info->nudge);
515 if (info->bestdist > dist)
517 info->bestdist = dist;
518 VectorScale(facenormal, (info->radius - dist), info->nudge);
524 // check which edge or vertex the center is nearest
525 for (i = 0;i < 3;i++)
527 f = DotProduct(info->center, edge[i]);
528 if (f >= DotProduct(vert[0], edge[i])
529 && f <= DotProduct(vert[1], edge[i]))
532 VectorMA(info->center, -f, edge[i], point);
533 dist = sqrt(DotProduct(point, point));
534 if (info->bestdist > dist)
536 info->bestdist = dist;
537 VectorScale(point, (info->radius / dist), info->nudge);
539 // skip both vertex checks
540 // (both are further away than this edge)
545 // not on edge, check first vertex of edge
546 VectorSubtract(info->center, vert[i], point);
547 dist = sqrt(DotProduct(point, point));
548 if (info->bestdist > dist)
550 info->bestdist = dist;
551 VectorScale(point, (info->radius / dist), info->nudge);
560 static void Mod_BSP_FindNonSolidLocation_r_Leaf(findnonsolidlocationinfo_t *info, mleaf_t *leaf)
562 int surfacenum, k, *mark;
564 for (surfacenum = 0, mark = leaf->firstleafsurface;surfacenum < leaf->numleafsurfaces;surfacenum++, mark++)
566 surface = info->model->data_surfaces + *mark;
567 if(!surface->texture)
569 if (surface->texture->supercontents & SUPERCONTENTS_SOLID)
571 for (k = 0;k < surface->num_triangles;k++)
573 Mod_BSP_FindNonSolidLocation_r_Triangle(info, surface, k);
579 static void Mod_BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, mnode_t *node)
583 float f = PlaneDiff(info->center, node->plane);
584 if (f >= -info->bestdist)
585 Mod_BSP_FindNonSolidLocation_r(info, node->children[0]);
586 if (f <= info->bestdist)
587 Mod_BSP_FindNonSolidLocation_r(info, node->children[1]);
591 if (((mleaf_t *)node)->numleafsurfaces)
592 Mod_BSP_FindNonSolidLocation_r_Leaf(info, (mleaf_t *)node);
596 static void Mod_BSP_FindNonSolidLocation(model_t *model, const vec3_t in, vec3_t out, float radius)
599 findnonsolidlocationinfo_t info;
605 VectorCopy(in, info.center);
606 info.radius = radius;
611 VectorClear(info.nudge);
612 info.bestdist = radius;
613 VectorCopy(info.center, info.absmin);
614 VectorCopy(info.center, info.absmax);
615 info.absmin[0] -= info.radius + 1;
616 info.absmin[1] -= info.radius + 1;
617 info.absmin[2] -= info.radius + 1;
618 info.absmax[0] += info.radius + 1;
619 info.absmax[1] += info.radius + 1;
620 info.absmax[2] += info.radius + 1;
621 Mod_BSP_FindNonSolidLocation_r(&info, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
622 VectorAdd(info.center, info.nudge, info.center);
624 while (info.bestdist < radius && ++i < 10);
625 VectorCopy(info.center, out);
628 int Mod_Q1BSP_SuperContentsFromNativeContents(int nativecontents)
630 switch(nativecontents)
635 return SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
637 return SUPERCONTENTS_WATER;
639 return SUPERCONTENTS_SLIME;
641 return SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
643 return SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP | SUPERCONTENTS_OPAQUE; // to match behaviour of Q3 maps, let sky count as opaque
648 int Mod_Q1BSP_NativeContentsFromSuperContents(int supercontents)
650 if (supercontents & (SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY))
651 return CONTENTS_SOLID;
652 if (supercontents & SUPERCONTENTS_SKY)
654 if (supercontents & SUPERCONTENTS_LAVA)
655 return CONTENTS_LAVA;
656 if (supercontents & SUPERCONTENTS_SLIME)
657 return CONTENTS_SLIME;
658 if (supercontents & SUPERCONTENTS_WATER)
659 return CONTENTS_WATER;
660 return CONTENTS_EMPTY;
663 typedef struct RecursiveHullCheckTraceInfo_s
665 // the hull we're tracing through
668 // the trace structure to fill in
671 // start, end, and end - start (in model space)
676 RecursiveHullCheckTraceInfo_t;
678 // 1/32 epsilon to keep floating point happy
679 #define DIST_EPSILON (0.03125)
681 #define HULLCHECKSTATE_EMPTY 0
682 #define HULLCHECKSTATE_SOLID 1
683 #define HULLCHECKSTATE_DONE 2
685 static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int num, double p1f, double p2f, double p1[3], double p2[3])
687 // status variables, these don't need to be saved on the stack when
688 // recursing... but are because this should be thread-safe
689 // (note: tracing against a bbox is not thread-safe, yet)
694 // variables that need to be stored on the stack when recursing
699 // keep looping until we hit a leaf
702 // find the point distances
703 node = t->hull->clipnodes + num;
704 plane = t->hull->planes + node->planenum;
706 // axial planes can be calculated more quickly without the DotProduct
709 t1 = p1[plane->type] - plane->dist;
710 t2 = p2[plane->type] - plane->dist;
714 t1 = DotProduct (plane->normal, p1) - plane->dist;
715 t2 = DotProduct (plane->normal, p2) - plane->dist;
718 // negative plane distances indicate children[1] (behind plane)
722 // if the line starts and ends on the same side of the plane, recurse
723 // into that child instantly
724 if (p1side == p2side)
726 #if COLLISIONPARANOID >= 3
732 // loop back and process the start child
733 num = node->children[p1side];
737 // find the midpoint where the line crosses the plane, use the
738 // original line for best accuracy
739 #if COLLISIONPARANOID >= 3
744 t1 = t->start[plane->type] - plane->dist;
745 t2 = t->end[plane->type] - plane->dist;
749 t1 = DotProduct (plane->normal, t->start) - plane->dist;
750 t2 = DotProduct (plane->normal, t->end) - plane->dist;
752 midf = t1 / (t1 - t2);
753 midf = bound(p1f, midf, p2f);
754 VectorMA(t->start, midf, t->dist, mid);
756 // we now have a mid point, essentially splitting the line into
757 // the segments in the near child and the far child, we can now
758 // recurse those in order and get their results
760 // recurse both sides, front side first
761 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[p1side], p1f, midf, p1, mid);
762 // if this side is not empty, return what it is (solid or done)
763 if (ret != HULLCHECKSTATE_EMPTY && !t->trace->allsolid)
766 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[p2side], midf, p2f, mid, p2);
767 // if other side is not solid, return what it is (empty or done)
768 if (ret != HULLCHECKSTATE_SOLID)
771 // front is air and back is solid, this is the impact point...
773 // copy the plane information, flipping it if needed
776 t->trace->plane.dist = -plane->dist;
777 VectorNegate (plane->normal, t->trace->plane.normal);
781 t->trace->plane.dist = plane->dist;
782 VectorCopy (plane->normal, t->trace->plane.normal);
785 // calculate the return fraction which is nudged off the surface a bit
786 t1 = DotProduct(t->trace->plane.normal, t->start) - t->trace->plane.dist;
787 t2 = DotProduct(t->trace->plane.normal, t->end) - t->trace->plane.dist;
788 midf = (t1 - collision_impactnudge.value) / (t1 - t2);
789 t->trace->fraction = bound(0, midf, 1);
791 #if COLLISIONPARANOID >= 3
794 return HULLCHECKSTATE_DONE;
798 // we reached a leaf contents
801 num = Mod_Q1BSP_SuperContentsFromNativeContents(num);
802 if (!t->trace->startfound)
804 t->trace->startfound = true;
805 t->trace->startsupercontents |= num;
807 if (num & SUPERCONTENTS_LIQUIDSMASK)
808 t->trace->inwater = true;
810 t->trace->inopen = true;
811 if (num & SUPERCONTENTS_SOLID)
812 t->trace->hittexture = &mod_q1bsp_texture_solid;
813 else if (num & SUPERCONTENTS_SKY)
814 t->trace->hittexture = &mod_q1bsp_texture_sky;
815 else if (num & SUPERCONTENTS_LAVA)
816 t->trace->hittexture = &mod_q1bsp_texture_lava;
817 else if (num & SUPERCONTENTS_SLIME)
818 t->trace->hittexture = &mod_q1bsp_texture_slime;
820 t->trace->hittexture = &mod_q1bsp_texture_water;
821 t->trace->hitq3surfaceflags = t->trace->hittexture->surfaceflags;
822 t->trace->hitsupercontents = num;
823 if (num & t->trace->hitsupercontentsmask)
825 // if the first leaf is solid, set startsolid
826 if (t->trace->allsolid)
827 t->trace->startsolid = true;
828 #if COLLISIONPARANOID >= 3
831 return HULLCHECKSTATE_SOLID;
835 t->trace->allsolid = false;
836 #if COLLISIONPARANOID >= 3
839 return HULLCHECKSTATE_EMPTY;
843 //#if COLLISIONPARANOID < 2
844 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
847 mclipnode_t *nodes = t->hull->clipnodes;
848 mplane_t *planes = t->hull->planes;
850 VectorCopy(t->start, point);
853 plane = planes + nodes[num].planenum;
854 num = nodes[num].children[(plane->type < 3 ? point[plane->type] : DotProduct(plane->normal, point)) < plane->dist];
856 num = Mod_Q1BSP_SuperContentsFromNativeContents(num);
857 t->trace->startsupercontents |= num;
858 if (num & SUPERCONTENTS_LIQUIDSMASK)
859 t->trace->inwater = true;
861 t->trace->inopen = true;
862 if (num & t->trace->hitsupercontentsmask)
864 t->trace->allsolid = t->trace->startsolid = true;
865 return HULLCHECKSTATE_SOLID;
869 t->trace->allsolid = t->trace->startsolid = false;
870 return HULLCHECKSTATE_EMPTY;
875 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)
877 RecursiveHullCheckTraceInfo_t rhc;
879 memset(&rhc, 0, sizeof(rhc));
880 memset(trace, 0, sizeof(trace_t));
882 rhc.trace->fraction = 1;
883 rhc.trace->allsolid = true;
884 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
885 VectorCopy(start, rhc.start);
886 VectorCopy(start, rhc.end);
887 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
890 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);
892 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)
894 RecursiveHullCheckTraceInfo_t rhc;
896 if (VectorCompare(start, end))
898 Mod_Q1BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
902 // 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...
903 if (sv_gameplayfix_q1bsptracelinereportstexture.integer)
905 Mod_Q1BSP_TraceLineAgainstSurfaces(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
909 memset(&rhc, 0, sizeof(rhc));
910 memset(trace, 0, sizeof(trace_t));
912 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
913 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
914 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
915 rhc.trace->fraction = 1;
916 rhc.trace->allsolid = true;
917 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
918 VectorCopy(start, rhc.start);
919 VectorCopy(end, rhc.end);
920 VectorSubtract(rhc.end, rhc.start, rhc.dist);
921 #if COLLISIONPARANOID >= 2
922 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]);
923 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
928 VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
929 memset(&testtrace, 0, sizeof(trace_t));
930 rhc.trace = &testtrace;
931 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
932 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
933 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
934 rhc.trace->fraction = 1;
935 rhc.trace->allsolid = true;
936 VectorCopy(test, rhc.start);
937 VectorCopy(test, rhc.end);
938 VectorClear(rhc.dist);
939 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
940 //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
941 if (!trace->startsolid && testtrace.startsolid)
942 Con_Printf(" - ended in solid!\n");
946 if (VectorLength2(rhc.dist))
947 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
949 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
953 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)
955 // this function currently only supports same size start and end
957 RecursiveHullCheckTraceInfo_t rhc;
959 if (VectorCompare(boxmins, boxmaxs))
961 if (VectorCompare(start, end))
962 Mod_Q1BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
964 Mod_Q1BSP_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
968 memset(&rhc, 0, sizeof(rhc));
969 memset(trace, 0, sizeof(trace_t));
971 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
972 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
973 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
974 rhc.trace->fraction = 1;
975 rhc.trace->allsolid = true;
976 VectorSubtract(boxmaxs, boxmins, boxsize);
977 if (boxsize[0] < mod_q1bsp_zero_hullsize_cutoff.value)
978 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
979 else if (model->brush.ishlbsp)
981 // LadyHavoc: this has to have a minor tolerance (the .1) because of
982 // minor float precision errors from the box being transformed around
983 if (boxsize[0] < 32.1)
985 if (boxsize[2] < 54) // pick the nearest of 36 or 72
986 rhc.hull = &model->brushq1.hulls[3]; // 32x32x36
988 rhc.hull = &model->brushq1.hulls[1]; // 32x32x72
991 rhc.hull = &model->brushq1.hulls[2]; // 64x64x64
995 // LadyHavoc: this has to have a minor tolerance (the .1) because of
996 // minor float precision errors from the box being transformed around
997 if (boxsize[0] < 32.1)
998 rhc.hull = &model->brushq1.hulls[1]; // 32x32x56
1000 rhc.hull = &model->brushq1.hulls[2]; // 64x64x88
1002 VectorMAMAM(1, start, 1, boxmins, -1, rhc.hull->clip_mins, rhc.start);
1003 VectorMAMAM(1, end, 1, boxmins, -1, rhc.hull->clip_mins, rhc.end);
1004 VectorSubtract(rhc.end, rhc.start, rhc.dist);
1005 #if COLLISIONPARANOID >= 2
1006 Con_Printf("t(%f %f %f,%f %f %f,%li %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]);
1007 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
1012 VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
1013 memset(&testtrace, 0, sizeof(trace_t));
1014 rhc.trace = &testtrace;
1015 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
1016 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
1017 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
1018 rhc.trace->fraction = 1;
1019 rhc.trace->allsolid = true;
1020 VectorCopy(test, rhc.start);
1021 VectorCopy(test, rhc.end);
1022 VectorClear(rhc.dist);
1023 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
1024 //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
1025 if (!trace->startsolid && testtrace.startsolid)
1026 Con_Printf(" - ended in solid!\n");
1030 if (VectorLength2(rhc.dist))
1031 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
1033 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
1037 static int Mod_Q1BSP_PointSuperContents(struct model_s *model, int frame, const vec3_t point)
1039 int num = model->brushq1.hulls[0].firstclipnode;
1041 mclipnode_t *nodes = model->brushq1.hulls[0].clipnodes;
1042 mplane_t *planes = model->brushq1.hulls[0].planes;
1045 plane = planes + nodes[num].planenum;
1046 num = nodes[num].children[(plane->type < 3 ? point[plane->type] : DotProduct(plane->normal, point)) < plane->dist];
1048 return Mod_Q1BSP_SuperContentsFromNativeContents(num);
1051 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)
1055 colplanef_t cbox_planes[6];
1057 cbox.hasaabbplanes = true;
1058 cbox.supercontents = boxsupercontents;
1061 cbox.numtriangles = 0;
1062 cbox.planes = cbox_planes;
1064 cbox.elements = NULL;
1072 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];
1073 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];
1074 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];
1075 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];
1076 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];
1077 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];
1078 cbox_planes[0].q3surfaceflags = boxq3surfaceflags;cbox_planes[0].texture = boxtexture;
1079 cbox_planes[1].q3surfaceflags = boxq3surfaceflags;cbox_planes[1].texture = boxtexture;
1080 cbox_planes[2].q3surfaceflags = boxq3surfaceflags;cbox_planes[2].texture = boxtexture;
1081 cbox_planes[3].q3surfaceflags = boxq3surfaceflags;cbox_planes[3].texture = boxtexture;
1082 cbox_planes[4].q3surfaceflags = boxq3surfaceflags;cbox_planes[4].texture = boxtexture;
1083 cbox_planes[5].q3surfaceflags = boxq3surfaceflags;cbox_planes[5].texture = boxtexture;
1084 memset(trace, 0, sizeof(trace_t));
1085 trace->hitsupercontentsmask = hitsupercontentsmask;
1086 trace->skipsupercontentsmask = skipsupercontentsmask;
1087 trace->skipmaterialflagsmask = skipmaterialflagsmask;
1088 trace->fraction = 1;
1089 Collision_TraceLineBrushFloat(trace, start, end, &cbox, &cbox);
1091 RecursiveHullCheckTraceInfo_t rhc;
1092 static hull_t box_hull;
1093 static mclipnode_t box_clipnodes[6];
1094 static mplane_t box_planes[6];
1095 // fill in a default trace
1096 memset(&rhc, 0, sizeof(rhc));
1097 memset(trace, 0, sizeof(trace_t));
1098 //To keep everything totally uniform, bounding boxes are turned into small
1099 //BSP trees instead of being compared directly.
1100 // create a temp hull from bounding box sizes
1101 box_planes[0].dist = cmaxs[0] - mins[0];
1102 box_planes[1].dist = cmins[0] - maxs[0];
1103 box_planes[2].dist = cmaxs[1] - mins[1];
1104 box_planes[3].dist = cmins[1] - maxs[1];
1105 box_planes[4].dist = cmaxs[2] - mins[2];
1106 box_planes[5].dist = cmins[2] - maxs[2];
1107 #if COLLISIONPARANOID >= 3
1108 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]);
1111 if (box_hull.clipnodes == NULL)
1115 //Set up the planes and clipnodes so that the six floats of a bounding box
1116 //can just be stored out and get a proper hull_t structure.
1118 box_hull.clipnodes = box_clipnodes;
1119 box_hull.planes = box_planes;
1120 box_hull.firstclipnode = 0;
1121 box_hull.lastclipnode = 5;
1123 for (i = 0;i < 6;i++)
1125 box_clipnodes[i].planenum = i;
1129 box_clipnodes[i].children[side] = CONTENTS_EMPTY;
1131 box_clipnodes[i].children[side^1] = i + 1;
1133 box_clipnodes[i].children[side^1] = CONTENTS_SOLID;
1135 box_planes[i].type = i>>1;
1136 box_planes[i].normal[i>>1] = 1;
1140 // trace a line through the generated clipping hull
1141 //rhc.boxsupercontents = boxsupercontents;
1142 rhc.hull = &box_hull;
1144 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
1145 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
1146 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
1147 rhc.trace->fraction = 1;
1148 rhc.trace->allsolid = true;
1149 VectorCopy(start, rhc.start);
1150 VectorCopy(end, rhc.end);
1151 VectorSubtract(rhc.end, rhc.start, rhc.dist);
1152 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
1153 //VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
1154 if (rhc.trace->startsupercontents)
1155 rhc.trace->startsupercontents = boxsupercontents;
1159 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)
1161 memset(trace, 0, sizeof(trace_t));
1162 trace->fraction = 1;
1163 trace->hitsupercontentsmask = hitsupercontentsmask;
1164 trace->skipsupercontentsmask = skipsupercontentsmask;
1165 trace->skipmaterialflagsmask = skipmaterialflagsmask;
1166 if (BoxesOverlap(start, start, cmins, cmaxs))
1168 trace->startsupercontents |= boxsupercontents;
1169 if ((hitsupercontentsmask & boxsupercontents) && !(skipsupercontentsmask & boxsupercontents))
1171 trace->startsolid = true;
1172 trace->allsolid = true;
1177 static qbool Mod_Q1BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end, const vec3_t acceptmins, const vec3_t acceptmaxs)
1180 Mod_Q1BSP_TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK, 0, MATERIALFLAGMASK_TRANSLUCENT);
1181 return trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, acceptmins, acceptmaxs);
1184 static int Mod_BSP_LightPoint_RecursiveBSPNode(model_t *model, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const mnode_t *node, float x, float y, float startz, float endz)
1188 float mid, distz = endz - startz;
1192 switch (node->plane->type)
1195 node = node->children[x < node->plane->dist];
1196 continue; // loop back and process the new node
1198 node = node->children[y < node->plane->dist];
1199 continue; // loop back and process the new node
1201 side = startz < node->plane->dist;
1202 if ((endz < node->plane->dist) == side)
1204 node = node->children[side];
1205 continue; // loop back and process the new node
1207 // found an intersection
1208 mid = node->plane->dist;
1211 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
1212 front += startz * node->plane->normal[2];
1213 back += endz * node->plane->normal[2];
1214 side = front < node->plane->dist;
1215 if ((back < node->plane->dist) == side)
1217 node = node->children[side];
1218 continue; // loop back and process the new node
1220 // found an intersection
1221 mid = startz + distz * (front - node->plane->dist) / (front - back);
1225 // go down front side
1226 if (node->children[side]->plane && Mod_BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
1227 return true; // hit something
1229 // check for impact on this node
1230 if (node->numsurfaces)
1233 int dsi, dti, lmwidth, lmheight;
1235 msurface_t *surface;
1236 unsigned char *lightmap;
1237 int maps, line3, size3;
1240 float scale, w, w00, w01, w10, w11;
1242 surface = model->data_surfaces + node->firstsurface;
1243 for (i = 0;i < node->numsurfaces;i++, surface++)
1245 if(!surface->texture)
1247 if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->lightmapinfo || !surface->lightmapinfo->samples)
1248 continue; // no lightmaps
1250 // location we want to sample in the lightmap
1251 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;
1252 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;
1255 // thanks to jitspoe for pointing out that this int cast was
1256 // rounding toward zero, so we floor it
1257 dsi = (int)floor(ds);
1258 dti = (int)floor(dt);
1259 lmwidth = ((surface->lightmapinfo->extents[0]>>4)+1);
1260 lmheight = ((surface->lightmapinfo->extents[1]>>4)+1);
1263 // we have to tolerate a position of lmwidth-1 for some rare
1264 // cases - in which case the sampling position still gets
1265 // clamped but the color gets interpolated to that edge.
1266 if (dsi >= 0 && dsi < lmwidth && dti >= 0 && dti < lmheight)
1268 // in the rare cases where we're sampling slightly off
1269 // the polygon, clamp the sampling position (we can still
1270 // interpolate outside it, where it becomes extrapolation)
1275 if (dsi > lmwidth-2)
1277 if (dti > lmheight-2)
1280 // calculate bilinear interpolation factors
1281 // and also multiply by fixedpoint conversion factors to
1282 // compensate for lightmaps being 0-255 (as 0-2), we use
1283 // r_refdef.scene.rtlightstylevalue here which is already
1284 // 0.000-2.148 range
1285 // (if we used r_refdef.scene.lightstylevalue this
1286 // divisor would be 32768 rather than 128)
1289 w00 = (1 - dsfrac) * (1 - dtfrac) * (1.0f / 128.0f);
1290 w01 = ( dsfrac) * (1 - dtfrac) * (1.0f / 128.0f);
1291 w10 = (1 - dsfrac) * ( dtfrac) * (1.0f / 128.0f);
1292 w11 = ( dsfrac) * ( dtfrac) * (1.0f / 128.0f);
1294 // values for pointer math
1295 line3 = lmwidth * 3; // LadyHavoc: *3 for colored lighting
1296 size3 = lmwidth * lmheight * 3; // LadyHavoc: *3 for colored lighting
1298 // look up the pixel
1299 lightmap = surface->lightmapinfo->samples + dti * line3 + dsi*3; // LadyHavoc: *3 for colored lighting
1301 // bilinear filter each lightmap style, and sum them
1302 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++)
1304 scale = r_refdef.scene.rtlightstylevalue[surface->lightmapinfo->styles[maps]];
1305 w = w00 * scale;VectorMA(ambientcolor, w, lightmap , ambientcolor);
1306 w = w01 * scale;VectorMA(ambientcolor, w, lightmap + 3 , ambientcolor);
1307 w = w10 * scale;VectorMA(ambientcolor, w, lightmap + line3 , ambientcolor);
1308 w = w11 * scale;VectorMA(ambientcolor, w, lightmap + line3 + 3, ambientcolor);
1312 return true; // success
1317 // go down back side
1318 node = node->children[side ^ 1];
1320 distz = endz - startz;
1321 // loop back and process the new node
1324 // did not hit anything
1328 static void Mod_BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
1330 // pretend lighting is coming down from above (due to lack of a lightgrid to know primary lighting direction)
1331 VectorSet(diffusenormal, 0, 0, 1);
1333 if (!model->brushq1.lightdata)
1335 VectorSet(ambientcolor, 1, 1, 1);
1336 VectorSet(diffusecolor, 0, 0, 0);
1340 Mod_BSP_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);
1343 static const texture_t *Mod_Q1BSP_TraceLineAgainstSurfacesFindTextureOnNode(RecursiveHullCheckTraceInfo_t *t, const model_t *model, const mnode_t *node, double mid[3])
1348 const msurface_t *surface;
1353 float edgenormal[3];
1360 surface = model->data_surfaces + node->firstsurface;
1361 for (i = 0;i < node->numsurfaces;i++, surface++)
1363 if(!surface->texture)
1365 // skip surfaces whose bounding box does not include the point
1366 // if (!BoxesOverlap(mid, mid, surface->mins, surface->maxs))
1368 // skip faces with contents we don't care about
1369 if (!(t->trace->hitsupercontentsmask & surface->texture->supercontents))
1371 // ignore surfaces matching the skipsupercontentsmask (this is rare)
1372 if (t->trace->skipsupercontentsmask & surface->texture->supercontents)
1374 // skip surfaces matching the skipmaterialflagsmask (e.g. MATERIALFLAG_NOSHADOW)
1375 if (t->trace->skipmaterialflagsmask & surface->texture->currentmaterialflags)
1377 // get the surface normal - since it is flat we know any vertex normal will suffice
1378 VectorCopy(model->surfmesh.data_normal3f + 3 * surface->num_firstvertex, normal);
1380 if (DotProduct(t->dist, normal) > 0)
1382 // iterate edges and see if the point is outside one of them
1383 for (j = 0, k = surface->num_vertices - 1;j < surface->num_vertices;k = j, j++)
1385 VectorCopy(model->surfmesh.data_vertex3f + 3 * (surface->num_firstvertex + k), v0);
1386 VectorCopy(model->surfmesh.data_vertex3f + 3 * (surface->num_firstvertex + j), v1);
1387 VectorSubtract(v0, v1, edgedir);
1388 CrossProduct(edgedir, normal, edgenormal);
1389 if (DotProduct(edgenormal, p) > DotProduct(edgenormal, v0))
1392 // if the point is outside one of the edges, it is not within the surface
1393 if (j < surface->num_vertices)
1396 // we hit a surface, this is the impact point...
1397 VectorCopy(normal, t->trace->plane.normal);
1398 t->trace->plane.dist = DotProduct(normal, p);
1400 // calculate the return fraction which is nudged off the surface a bit
1401 t1 = DotProduct(t->start, t->trace->plane.normal) - t->trace->plane.dist;
1402 t2 = DotProduct(t->end, t->trace->plane.normal) - t->trace->plane.dist;
1403 midf = (t1 - collision_impactnudge.value) / (t1 - t2);
1404 t->trace->fraction = bound(0, midf, 1);
1406 t->trace->hittexture = surface->texture->currentframe;
1407 t->trace->hitq3surfaceflags = t->trace->hittexture->surfaceflags;
1408 t->trace->hitsupercontents = t->trace->hittexture->supercontents;
1409 return surface->texture->currentframe;
1414 static int Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(RecursiveHullCheckTraceInfo_t *t, const model_t *model, const mnode_t *node, const double p1[3], const double p2[3])
1416 const mplane_t *plane;
1419 double midf, mid[3];
1420 const mleaf_t *leaf;
1424 plane = node->plane;
1425 if (plane->type < 3)
1427 t1 = p1[plane->type] - plane->dist;
1428 t2 = p2[plane->type] - plane->dist;
1432 t1 = DotProduct (plane->normal, p1) - plane->dist;
1433 t2 = DotProduct (plane->normal, p2) - plane->dist;
1439 node = node->children[1];
1448 node = node->children[0];
1454 // the line intersects, find intersection point
1455 // LadyHavoc: this uses the original trace for maximum accuracy
1456 if (plane->type < 3)
1458 t1 = t->start[plane->type] - plane->dist;
1459 t2 = t->end[plane->type] - plane->dist;
1463 t1 = DotProduct (plane->normal, t->start) - plane->dist;
1464 t2 = DotProduct (plane->normal, t->end) - plane->dist;
1467 midf = t1 / (t1 - t2);
1468 VectorMA(t->start, midf, t->dist, mid);
1470 // recurse both sides, front side first, return if we hit a surface
1471 if (Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(t, model, node->children[side], p1, mid) == HULLCHECKSTATE_DONE)
1472 return HULLCHECKSTATE_DONE;
1474 // test each surface on the node
1475 Mod_Q1BSP_TraceLineAgainstSurfacesFindTextureOnNode(t, model, node, mid);
1476 if (t->trace->hittexture)
1477 return HULLCHECKSTATE_DONE;
1479 // recurse back side
1480 return Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(t, model, node->children[side ^ 1], mid, p2);
1482 leaf = (const mleaf_t *)node;
1483 side = Mod_Q1BSP_SuperContentsFromNativeContents(leaf->contents);
1484 if (!t->trace->startfound)
1486 t->trace->startfound = true;
1487 t->trace->startsupercontents |= side;
1489 if (side & SUPERCONTENTS_LIQUIDSMASK)
1490 t->trace->inwater = true;
1492 t->trace->inopen = true;
1493 if (side & t->trace->hitsupercontentsmask)
1495 // if the first leaf is solid, set startsolid
1496 if (t->trace->allsolid)
1497 t->trace->startsolid = true;
1498 return HULLCHECKSTATE_SOLID;
1502 t->trace->allsolid = false;
1503 return HULLCHECKSTATE_EMPTY;
1507 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)
1509 RecursiveHullCheckTraceInfo_t rhc;
1511 memset(&rhc, 0, sizeof(rhc));
1512 memset(trace, 0, sizeof(trace_t));
1514 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
1515 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
1516 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
1517 rhc.trace->fraction = 1;
1518 rhc.trace->allsolid = true;
1519 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
1520 VectorCopy(start, rhc.start);
1521 VectorCopy(end, rhc.end);
1522 VectorSubtract(rhc.end, rhc.start, rhc.dist);
1523 Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(&rhc, model, model->brush.data_nodes + rhc.hull->firstclipnode, rhc.start, rhc.end);
1524 VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
1527 static void Mod_BSP_DecompressVis(const unsigned char *in, const unsigned char *inend, unsigned char *out, unsigned char *outend)
1530 unsigned char *outstart = out;
1531 while (out < outend)
1535 Con_Printf("Mod_BSP_DecompressVis: input underrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
1545 Con_Printf("Mod_BSP_DecompressVis: input underrun (during zero-run) on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
1548 for (c = *in++;c > 0;c--)
1552 Con_Printf("Mod_BSP_DecompressVis: output overrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
1563 Mod_Q1BSP_LoadSplitSky
1565 A sky texture is 256*128, with the right side being a masked overlay
1568 static void Mod_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesperpixel)
1573 unsigned int *solidpixels = (unsigned int *)Mem_Alloc(tempmempool, w*h*sizeof(unsigned char[4]));
1574 unsigned int *alphapixels = (unsigned int *)Mem_Alloc(tempmempool, w*h*sizeof(unsigned char[4]));
1576 // allocate a texture pool if we need it
1577 if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
1578 loadmodel->texturepool = R_AllocTexturePool();
1580 if (bytesperpixel == 4)
1582 for (y = 0;y < h;y++)
1584 for (x = 0;x < w;x++)
1586 solidpixels[y*w+x] = ((unsigned *)src)[y*width+x+w];
1587 alphapixels[y*w+x] = ((unsigned *)src)[y*width+x];
1593 // make an average value for the back to avoid
1594 // a fringe on the top level
1603 for (y = 0;y < h;y++)
1605 for (x = 0;x < w;x++)
1607 p = src[x*width+y+w];
1608 r += palette_rgb[p][0];
1609 g += palette_rgb[p][1];
1610 b += palette_rgb[p][2];
1613 bgra.b[2] = r/(w*h);
1614 bgra.b[1] = g/(w*h);
1615 bgra.b[0] = b/(w*h);
1617 for (y = 0;y < h;y++)
1619 for (x = 0;x < w;x++)
1621 solidpixels[y*w+x] = palette_bgra_complete[src[y*width+x+w]];
1623 alphapixels[y*w+x] = p ? palette_bgra_complete[p] : bgra.i;
1628 loadmodel->brush.solidskyskinframe = R_SkinFrame_LoadInternalBGRA("sky_solidtexture", 0 , (unsigned char *) solidpixels, w, h, 0, 0, 0, vid.sRGB3D);
1629 loadmodel->brush.alphaskyskinframe = R_SkinFrame_LoadInternalBGRA("sky_alphatexture", TEXF_ALPHA, (unsigned char *) alphapixels, w, h, 0, 0, 0, vid.sRGB3D);
1630 Mem_Free(solidpixels);
1631 Mem_Free(alphapixels);
1634 static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
1636 int i, j, k, num, max, altmax, mtwidth, mtheight, doffset, incomplete, nummiptex = 0, firstskynoshadowtexture = 0;
1637 skinframe_t *skinframemissing;
1638 texture_t *tx, *tx2, *anims[10], *altanims[10], *currentskynoshadowtexture;
1639 texture_t backuptex;
1640 unsigned char *data, *mtdata;
1642 char mapname[MAX_QPATH], name[MAX_QPATH];
1643 unsigned char zeroopaque[4], zerotrans[4];
1646 Vector4Set(zeroopaque, 0, 0, 0, 255);
1647 Vector4Set(zerotrans, 0, 0, 0, 128);
1649 loadmodel->data_textures = NULL;
1651 // add two slots for notexture walls and notexture liquids, and duplicate
1652 // all sky textures; sky surfaces can be shadow-casting or not, the surface
1653 // loading will choose according to the contents behind the surface
1654 // (necessary to support e1m5 logo shadow which has a SKY contents brush,
1655 // while correctly treating sky textures as occluders in other situations).
1660 nummiptex = MSG_ReadLittleLong(sb);
1661 loadmodel->num_textures = nummiptex + 2;
1662 // save the position so we can go back to it
1663 watermark = sb->readcount;
1664 for (i = 0; i < nummiptex; i++)
1666 doffset = MSG_ReadLittleLong(sb);
1667 if (r_nosurftextures.integer)
1671 Con_DPrintf("%s: miptex #%i missing\n", loadmodel->name, i);
1675 MSG_InitReadBuffer(&miptexsb, sb->data + doffset, sb->cursize - doffset);
1677 // copy name, but only up to 16 characters
1678 // (the output buffer can hold more than this, but the input buffer is
1680 for (j = 0; j < 16; j++)
1681 name[j] = MSG_ReadByte(&miptexsb);
1683 // pretty up the buffer (replacing any trailing garbage with 0)
1684 for (j = (int)strlen(name); j < 16; j++)
1687 if (!strncmp(name, "sky", 3))
1691 // bump it back to where we started parsing
1692 sb->readcount = (int)watermark;
1694 firstskynoshadowtexture = loadmodel->num_textures;
1695 loadmodel->num_textures += numsky;
1699 loadmodel->num_textures = 2;
1700 firstskynoshadowtexture = loadmodel->num_textures;
1702 loadmodel->num_texturesperskin = loadmodel->num_textures;
1704 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
1706 // we'll be writing to these in parallel for sky textures
1707 currentskynoshadowtexture = loadmodel->data_textures + firstskynoshadowtexture;
1709 // fill out all slots with notexture
1710 skinframemissing = R_SkinFrame_LoadMissing();
1711 for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
1713 strlcpy(tx->name, "NO TEXTURE FOUND", sizeof(tx->name));
1716 tx->basealpha = 1.0f;
1717 tx->materialshaderpass = tx->shaderpasses[0] = Mod_CreateShaderPass(loadmodel->mempool, skinframemissing);
1718 tx->materialshaderpass->skinframes[0] = skinframemissing;
1719 tx->currentskinframe = skinframemissing;
1720 tx->basematerialflags = MATERIALFLAG_WALL;
1721 if (i == loadmodel->num_textures - 1)
1723 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1724 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1725 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1729 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1730 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1732 tx->currentframe = tx;
1734 // clear water settings
1737 tx->refractive_index = mod_q3shader_default_refractive_index.value;
1738 tx->refractfactor = 1;
1739 Vector4Set(tx->refractcolor4f, 1, 1, 1, 1);
1740 tx->reflectfactor = 1;
1741 Vector4Set(tx->reflectcolor4f, 1, 1, 1, 1);
1742 tx->r_water_wateralpha = 1;
1743 tx->offsetmapping = OFFSETMAPPING_DEFAULT;
1744 tx->offsetscale = 1;
1746 tx->specularscalemod = 1;
1747 tx->specularpowermod = 1;
1748 tx->transparentsort = TRANSPARENTSORT_DISTANCE;
1749 // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
1750 // JUST GREP FOR "specularscalemod = 1".
1755 Con_Printf("%s: no miptex lump to load textures from\n", loadmodel->name);
1759 s = loadmodel->name;
1760 if (!strncasecmp(s, "maps/", 5))
1762 FS_StripExtension(s, mapname, sizeof(mapname));
1764 // LadyHavoc: mostly rewritten map texture loader
1765 for (i = 0;i < nummiptex;i++)
1767 doffset = MSG_ReadLittleLong(sb);
1768 if (r_nosurftextures.integer)
1772 Con_DPrintf("%s: miptex #%i missing\n", loadmodel->name, i);
1776 MSG_InitReadBuffer(&miptexsb, sb->data + doffset, sb->cursize - doffset);
1778 // copy name, but only up to 16 characters
1779 // (the output buffer can hold more than this, but the input buffer is
1781 for (j = 0;j < 16;j++)
1782 name[j] = MSG_ReadByte(&miptexsb);
1784 // pretty up the buffer (replacing any trailing garbage with 0)
1785 for (j = (int)strlen(name);j < 16;j++)
1790 dpsnprintf(name, sizeof(name), "unnamed%i", i);
1791 Con_DPrintf("%s: warning: renaming unnamed texture to %s\n", loadmodel->name, name);
1794 mtwidth = MSG_ReadLittleLong(&miptexsb);
1795 mtheight = MSG_ReadLittleLong(&miptexsb);
1797 j = MSG_ReadLittleLong(&miptexsb);
1801 if (j < 40 || j + mtwidth * mtheight > miptexsb.cursize)
1803 Con_Printf("%s: Texture \"%s\" is corrupt or incomplete\n", loadmodel->name, name);
1806 mtdata = miptexsb.data + j;
1809 if ((mtwidth & 15) || (mtheight & 15))
1810 Con_DPrintf("%s: warning: texture \"%s\" is not 16 aligned\n", loadmodel->name, name);
1812 // LadyHavoc: force all names to lowercase
1813 for (j = 0;name[j];j++)
1814 if (name[j] >= 'A' && name[j] <= 'Z')
1815 name[j] += 'a' - 'A';
1817 tx = loadmodel->data_textures + i;
1818 // try to load shader or external textures, but first we have to backup the texture_t because shader loading overwrites it even if it fails
1819 backuptex = loadmodel->data_textures[i];
1820 if (name[0] && /* HACK */ strncmp(name, "sky", 3) /* END HACK */ && (Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, loadmodel->data_textures + i, va(vabuf, sizeof(vabuf), "%s/%s", mapname, name), false, false, TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL) ||
1821 Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, loadmodel->data_textures + i, va(vabuf, sizeof(vabuf), "%s" , name), false, false, TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL)))
1823 // set the width/height fields which are used for parsing texcoords in this bsp format
1824 tx->width = mtwidth;
1825 tx->height = mtheight;
1828 // no luck with loading shaders or external textures - restore the in-progress texture loading
1829 loadmodel->data_textures[i] = backuptex;
1831 strlcpy(tx->name, name, sizeof(tx->name));
1832 tx->width = mtwidth;
1833 tx->height = mtheight;
1834 tx->basealpha = 1.0f;
1836 // start out with no animation
1837 tx->currentframe = tx;
1838 tx->currentskinframe = tx->materialshaderpass != NULL ? tx->materialshaderpass->skinframes[0] : NULL;
1840 if (tx->name[0] == '*')
1842 if (!strncmp(tx->name, "*lava", 5))
1844 tx->supercontents = mod_q1bsp_texture_lava.supercontents;
1845 tx->surfaceflags = mod_q1bsp_texture_lava.surfaceflags;
1847 else if (!strncmp(tx->name, "*slime", 6))
1849 tx->supercontents = mod_q1bsp_texture_slime.supercontents;
1850 tx->surfaceflags = mod_q1bsp_texture_slime.surfaceflags;
1854 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1855 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1858 else if (!strncmp(tx->name, "sky", 3))
1860 tx->supercontents = mod_q1bsp_texture_sky.supercontents;
1861 tx->surfaceflags = mod_q1bsp_texture_sky.surfaceflags;
1862 // for the surface traceline we need to hit this surface as a solid...
1863 tx->supercontents |= SUPERCONTENTS_SOLID;
1867 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1868 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1871 if (cls.state != ca_dedicated)
1873 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);
1875 !(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)))
1876 // HACK: It loads custom skybox textures as a wall if loaded as a skinframe.
1877 || !strncmp(tx->name, "sky", 3))
1879 // did not find external texture via shader loading, load it from the bsp or wad3
1880 if (loadmodel->brush.ishlbsp)
1882 // internal texture overrides wad
1883 unsigned char* pixels, * freepixels;
1884 pixels = freepixels = NULL;
1886 pixels = W_ConvertWAD3TextureBGRA(&miptexsb);
1888 pixels = freepixels = W_GetTextureBGRA(tx->name);
1891 tx->width = image_width;
1892 tx->height = image_height;
1893 tx->materialshaderpass->skinframes[0] = 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);
1896 Mem_Free(freepixels);
1898 else if (!strncmp(tx->name, "sky", 3) && mtwidth == mtheight * 2)
1900 data = loadimagepixelsbgra(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s/%s", mapname, tx->name), false, false, false, NULL);
1902 data = loadimagepixelsbgra(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s", tx->name), false, false, false, NULL);
1903 if (data && image_width == image_height * 2)
1905 Mod_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1908 else if (mtdata != NULL)
1909 Mod_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1911 else if (mtdata) // texture included
1912 tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalQuake(tx->name, TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP, false, r_fullbrights.integer, mtdata, tx->width, tx->height);
1913 // if mtdata is NULL, the "missing" texture has already been assigned to this
1914 // LadyHavoc: some Tenebrae textures get replaced by black
1915 if (!strncmp(tx->name, "*glassmirror", 12)) // Tenebrae
1916 tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_MIPMAP | TEXF_ALPHA, zerotrans, 1, 1, 0, 0, 0, false);
1917 else if (!strncmp(tx->name, "mirror", 6)) // Tenebrae
1918 tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, 0, zeroopaque, 1, 1, 0, 0, 0, false);
1921 tx->materialshaderpass->skinframes[0] = skinframe;
1922 tx->currentskinframe = tx->materialshaderpass->skinframes[0];
1925 tx->basematerialflags = MATERIALFLAG_WALL;
1926 if (tx->name[0] == '*')
1928 // LadyHavoc: some turbulent textures should not be affected by wateralpha
1929 if (!strncmp(tx->name, "*glassmirror", 12)) // Tenebrae
1930 tx->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_REFLECTION;
1931 else if (!strncmp(tx->name,"*lava",5)
1932 || !strncmp(tx->name,"*teleport",9)
1933 || !strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1934 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1936 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW | MATERIALFLAG_WATERALPHA | MATERIALFLAG_WATERSHADER;
1937 if (tx->currentskinframe != NULL && tx->currentskinframe->hasalpha)
1938 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1940 else if (tx->name[0] == '{') // fence textures
1942 tx->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
1944 else if (!strncmp(tx->name, "mirror", 6)) // Tenebrae
1946 // replace the texture with black
1947 tx->basematerialflags |= MATERIALFLAG_REFLECTION;
1949 else if (!strncmp(tx->name, "sky", 3))
1950 tx->basematerialflags = MATERIALFLAG_SKY;
1951 else if (!strcmp(tx->name, "caulk"))
1952 tx->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
1953 else if (tx->currentskinframe != NULL && tx->currentskinframe->hasalpha)
1954 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1955 tx->currentmaterialflags = tx->basematerialflags;
1957 // duplicate of sky with NOSHADOW
1958 if (tx->basematerialflags & MATERIALFLAG_SKY)
1960 *currentskynoshadowtexture = *tx;
1961 currentskynoshadowtexture->basematerialflags |= MATERIALFLAG_NOSHADOW;
1962 tx->skynoshadowtexture = currentskynoshadowtexture;
1963 currentskynoshadowtexture++;
1967 // sequence the animations
1968 for (i = 0;i < nummiptex;i++)
1970 tx = loadmodel->data_textures + i;
1971 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1974 if ((num < '0' || num > '9') && (num < 'a' || num > 'j'))
1976 Con_Printf("Bad animating texture %s\n", tx->name);
1979 if (tx->anim_total[0] || tx->anim_total[1])
1980 continue; // already sequenced
1982 // find the number of frames in the animation
1983 memset(anims, 0, sizeof(anims));
1984 memset(altanims, 0, sizeof(altanims));
1986 for (j = i;j < nummiptex;j++)
1988 tx2 = loadmodel->data_textures + j;
1989 if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
1993 if (num >= '0' && num <= '9')
1994 anims[num - '0'] = tx2;
1995 else if (num >= 'a' && num <= 'j')
1996 altanims[num - 'a'] = tx2;
1997 // No need to warn otherwise - we already did above.
2001 for (j = 0;j < 10;j++)
2008 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
2011 for (j = 0;j < max;j++)
2015 Con_Printf("Missing frame %i of %s\n", j, tx->name);
2019 for (j = 0;j < altmax;j++)
2023 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
2030 // If we have exactly one frame, something's wrong.
2031 if (max + altmax <= 1)
2033 Con_Printf("Texture %s is animated (leading +) but has only one frame\n", tx->name);
2038 // if there is no alternate animation, duplicate the primary
2039 // animation into the alternate
2041 for (k = 0;k < 10;k++)
2042 altanims[k] = anims[k];
2048 Con_Printf("Missing frame 0 of %s\n", tx->name);
2050 // however, we can handle this by duplicating the alternate animation into the primary
2052 for (k = 0;k < 10;k++)
2053 anims[k] = altanims[k];
2057 // link together the primary animation
2058 for (j = 0;j < max;j++)
2061 tx2->animated = 1; // q1bsp
2062 tx2->anim_total[0] = max;
2063 tx2->anim_total[1] = altmax;
2064 for (k = 0;k < 10;k++)
2066 tx2->anim_frames[0][k] = anims[k];
2067 tx2->anim_frames[1][k] = altanims[k];
2071 // if there really is an alternate anim...
2072 if (anims[0] != altanims[0])
2074 // link together the alternate animation
2075 for (j = 0;j < altmax;j++)
2078 tx2->animated = 1; // q1bsp
2079 // the primary/alternate are reversed here
2080 tx2->anim_total[0] = altmax;
2081 tx2->anim_total[1] = max;
2082 for (k = 0;k < 10;k++)
2084 tx2->anim_frames[0][k] = altanims[k];
2085 tx2->anim_frames[1][k] = anims[k];
2092 static void Mod_Q1BSP_LoadLighting(sizebuf_t *sb)
2095 unsigned char *in, *out, *data, d;
2096 char litfilename[MAX_QPATH];
2097 char dlitfilename[MAX_QPATH];
2098 fs_offset_t filesize;
2099 if (loadmodel->brush.ishlbsp) // LadyHavoc: load the colored lighting data straight
2101 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize);
2102 for (i = 0;i < sb->cursize;i++)
2103 loadmodel->brushq1.lightdata[i] = sb->data[i] >>= 1;
2105 else // LadyHavoc: bsp version 29 (normal white lighting)
2107 // LadyHavoc: hope is not lost yet, check for a .lit file to load
2108 strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
2109 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
2110 strlcpy (dlitfilename, litfilename, sizeof (dlitfilename));
2111 strlcat (litfilename, ".lit", sizeof (litfilename));
2112 strlcat (dlitfilename, ".dlit", sizeof (dlitfilename));
2113 data = (unsigned char*) FS_LoadFile(litfilename, tempmempool, false, &filesize);
2116 if (filesize == (fs_offset_t)(8 + sb->cursize * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
2118 i = LittleLong(((int *)data)[1]);
2121 if (developer_loading.integer)
2122 Con_Printf("loaded %s\n", litfilename);
2123 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
2124 memcpy(loadmodel->brushq1.lightdata, data + 8, filesize - 8);
2126 data = (unsigned char*) FS_LoadFile(dlitfilename, tempmempool, false, &filesize);
2129 if (filesize == (fs_offset_t)(8 + sb->cursize * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
2131 i = LittleLong(((int *)data)[1]);
2134 if (developer_loading.integer)
2135 Con_Printf("loaded %s\n", dlitfilename);
2136 loadmodel->brushq1.nmaplightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
2137 memcpy(loadmodel->brushq1.nmaplightdata, data + 8, filesize - 8);
2138 loadmodel->brushq3.deluxemapping_modelspace = false;
2139 loadmodel->brushq3.deluxemapping = true;
2148 Con_Printf("Unknown .lit file version (%d)\n", i);
2150 else if (filesize == 8)
2151 Con_Print("Empty .lit file, ignoring\n");
2153 Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", (int) filesize, (int) (8 + sb->cursize * 3));
2160 // LadyHavoc: oh well, expand the white lighting data
2163 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize*3);
2165 out = loadmodel->brushq1.lightdata;
2166 for (i = 0;i < sb->cursize;i++)
2176 static void Mod_Q1BSP_LoadVisibility(sizebuf_t *sb)
2178 loadmodel->brushq1.num_compressedpvs = 0;
2179 loadmodel->brushq1.data_compressedpvs = NULL;
2182 loadmodel->brushq1.num_compressedpvs = sb->cursize;
2183 loadmodel->brushq1.data_compressedpvs = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize);
2184 MSG_ReadBytes(sb, sb->cursize, loadmodel->brushq1.data_compressedpvs);
2187 // used only for HalfLife maps
2188 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
2190 char key[128], value[4096];
2194 if (!COM_ParseToken_Simple(&data, false, false, true))
2196 if (com_token[0] != '{')
2200 if (!COM_ParseToken_Simple(&data, false, false, true))
2202 if (com_token[0] == '}')
2203 break; // end of worldspawn
2204 if (com_token[0] == '_')
2205 strlcpy(key, com_token + 1, sizeof(key));
2207 strlcpy(key, com_token, sizeof(key));
2208 while (key[strlen(key)-1] == ' ') // remove trailing spaces
2209 key[strlen(key)-1] = 0;
2210 if (!COM_ParseToken_Simple(&data, false, false, true))
2212 dpsnprintf(value, sizeof(value), "%s", com_token);
2213 if (!strcmp("wad", key)) // for HalfLife maps
2215 if (loadmodel->brush.ishlbsp)
2218 for (i = 0;i < (int)sizeof(value);i++)
2219 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
2221 if (i < (int)sizeof(value) && value[i])
2223 for (;i < (int)sizeof(value);i++)
2225 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
2226 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
2228 else if (value[i] == ';' || value[i] == 0)
2232 W_LoadTextureWadFile(&value[j], false);
2244 static void Mod_Q1BSP_LoadEntities(sizebuf_t *sb)
2246 loadmodel->brush.entities = NULL;
2249 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, sb->cursize + 1);
2250 MSG_ReadBytes(sb, sb->cursize, (unsigned char *)loadmodel->brush.entities);
2251 loadmodel->brush.entities[sb->cursize] = 0;
2252 if (loadmodel->brush.ishlbsp)
2253 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
2257 static void Mod_Q1BSP_LoadVertexes(sizebuf_t *sb)
2261 int structsize = 12;
2263 if (sb->cursize % structsize)
2264 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
2265 count = sb->cursize / structsize;
2266 out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2268 loadmodel->brushq1.vertexes = out;
2269 loadmodel->brushq1.numvertexes = count;
2271 for ( i=0 ; i<count ; i++, out++)
2273 out->position[0] = MSG_ReadLittleFloat(sb);
2274 out->position[1] = MSG_ReadLittleFloat(sb);
2275 out->position[2] = MSG_ReadLittleFloat(sb);
2279 static void Mod_BSP_LoadSubmodels(sizebuf_t *sb, hullinfo_t *hullinfo)
2283 int structsize = hullinfo ? (48+4*hullinfo->filehulls) : 48;
2285 if (sb->cursize % structsize)
2286 Host_Error ("Mod_BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
2288 count = sb->cursize / structsize;
2289 out = (mmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
2291 loadmodel->brushq1.submodels = out;
2292 loadmodel->brush.numsubmodels = count;
2294 for (i = 0; i < count; i++, out++)
2296 // spread out the mins / maxs by a pixel
2297 out->mins[0] = MSG_ReadLittleFloat(sb) - 1;
2298 out->mins[1] = MSG_ReadLittleFloat(sb) - 1;
2299 out->mins[2] = MSG_ReadLittleFloat(sb) - 1;
2300 out->maxs[0] = MSG_ReadLittleFloat(sb) + 1;
2301 out->maxs[1] = MSG_ReadLittleFloat(sb) + 1;
2302 out->maxs[2] = MSG_ReadLittleFloat(sb) + 1;
2303 out->origin[0] = MSG_ReadLittleFloat(sb);
2304 out->origin[1] = MSG_ReadLittleFloat(sb);
2305 out->origin[2] = MSG_ReadLittleFloat(sb);
2308 for (j = 0; j < hullinfo->filehulls; j++)
2309 out->headnode[j] = MSG_ReadLittleLong(sb);
2310 out->visleafs = MSG_ReadLittleLong(sb);
2312 else // Quake 2 has only one hull
2313 out->headnode[0] = MSG_ReadLittleLong(sb);
2315 out->firstface = MSG_ReadLittleLong(sb);
2316 out->numfaces = MSG_ReadLittleLong(sb);
2320 static void Mod_Q1BSP_LoadEdges(sizebuf_t *sb)
2324 int structsize = loadmodel->brush.isbsp2 ? 8 : 4;
2326 if (sb->cursize % structsize)
2327 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
2328 count = sb->cursize / structsize;
2329 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
2331 loadmodel->brushq1.edges = out;
2332 loadmodel->brushq1.numedges = count;
2334 for ( i=0 ; i<count ; i++, out++)
2336 if (loadmodel->brush.isbsp2)
2338 out->v[0] = (unsigned int)MSG_ReadLittleLong(sb);
2339 out->v[1] = (unsigned int)MSG_ReadLittleLong(sb);
2343 out->v[0] = (unsigned short)MSG_ReadLittleShort(sb);
2344 out->v[1] = (unsigned short)MSG_ReadLittleShort(sb);
2346 if ((int)out->v[0] >= loadmodel->brushq1.numvertexes || (int)out->v[1] >= loadmodel->brushq1.numvertexes)
2348 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);
2349 if(!loadmodel->brushq1.numvertexes)
2350 Host_Error("Mod_Q1BSP_LoadEdges: %s has edges but no vertexes, cannot fix\n", loadmodel->name);
2358 static void Mod_Q1BSP_LoadTexinfo(sizebuf_t *sb)
2361 int i, j, k, count, miptex;
2362 int structsize = 40;
2364 if (sb->cursize % structsize)
2365 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
2366 count = sb->cursize / structsize;
2367 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
2369 loadmodel->brushq1.texinfo = out;
2370 loadmodel->brushq1.numtexinfo = count;
2372 for (i = 0;i < count;i++, out++)
2374 for (k = 0;k < 2;k++)
2375 for (j = 0;j < 4;j++)
2376 out->vecs[k][j] = MSG_ReadLittleFloat(sb);
2378 miptex = MSG_ReadLittleLong(sb);
2379 out->q1flags = MSG_ReadLittleLong(sb);
2381 if (out->q1flags & TEX_SPECIAL)
2383 // if texture chosen is NULL or the shader needs a lightmap,
2384 // force to notexture water shader
2385 out->textureindex = loadmodel->num_textures - 1;
2389 // if texture chosen is NULL, force to notexture
2390 out->textureindex = loadmodel->num_textures - 2;
2392 // see if the specified miptex is valid and try to use it instead
2393 if (loadmodel->data_textures)
2395 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
2396 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
2398 out->textureindex = miptex;
2404 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
2409 mins[0] = mins[1] = mins[2] = 9999;
2410 maxs[0] = maxs[1] = maxs[2] = -9999;
2412 for (i = 0;i < numverts;i++)
2414 for (j = 0;j < 3;j++, v++)
2424 #define MAX_SUBDIVPOLYTRIANGLES 4096
2425 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
2427 static int subdivpolyverts, subdivpolytriangles;
2428 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
2429 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
2431 static int subdivpolylookupvert(vec3_t v)
2434 for (i = 0;i < subdivpolyverts;i++)
2435 if (subdivpolyvert[i][0] == v[0]
2436 && subdivpolyvert[i][1] == v[1]
2437 && subdivpolyvert[i][2] == v[2])
2439 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
2440 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
2441 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
2442 return subdivpolyverts++;
2445 static void SubdividePolygon(int numverts, float *verts)
2447 int i, i1, i2, i3, f, b, c, p;
2448 vec3_t mins, maxs, front[256], back[256];
2449 float m, *pv, *cv, dist[256], frac;
2452 Host_Error("SubdividePolygon: ran out of verts in buffer");
2454 BoundPoly(numverts, verts, mins, maxs);
2456 for (i = 0;i < 3;i++)
2458 m = (mins[i] + maxs[i]) * 0.5;
2459 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
2460 if (maxs[i] - m < 8)
2462 if (m - mins[i] < 8)
2466 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
2467 dist[c] = cv[i] - m;
2470 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
2474 VectorCopy(pv, front[f]);
2479 VectorCopy(pv, back[b]);
2482 if (dist[p] == 0 || dist[c] == 0)
2484 if ((dist[p] > 0) != (dist[c] > 0) )
2487 frac = dist[p] / (dist[p] - dist[c]);
2488 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
2489 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
2490 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
2496 SubdividePolygon(f, front[0]);
2497 SubdividePolygon(b, back[0]);
2501 i1 = subdivpolylookupvert(verts);
2502 i2 = subdivpolylookupvert(verts + 3);
2503 for (i = 2;i < numverts;i++)
2505 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
2507 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
2511 i3 = subdivpolylookupvert(verts + i * 3);
2512 subdivpolyindex[subdivpolytriangles][0] = i1;
2513 subdivpolyindex[subdivpolytriangles][1] = i2;
2514 subdivpolyindex[subdivpolytriangles][2] = i3;
2516 subdivpolytriangles++;
2520 //Breaks a polygon up along axial 64 unit
2521 //boundaries so that turbulent and sky warps
2522 //can be done reasonably.
2523 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
2529 subdivpolytriangles = 0;
2530 subdivpolyverts = 0;
2531 SubdividePolygon(surface->num_vertices, (surface->mesh->data_vertex3f + 3 * surface->num_firstvertex));
2532 if (subdivpolytriangles < 1)
2533 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?");
2535 surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
2536 mesh->num_vertices = subdivpolyverts;
2537 mesh->num_triangles = subdivpolytriangles;
2538 mesh->vertex = (surfvertex_t *)(mesh + 1);
2539 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
2540 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
2542 for (i = 0;i < mesh->num_triangles;i++)
2543 for (j = 0;j < 3;j++)
2544 mesh->index[i*3+j] = subdivpolyindex[i][j];
2546 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
2548 VectorCopy(subdivpolyvert[i], v->v);
2549 v->st[0] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[0]);
2550 v->st[1] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[1]);
2555 extern cvar_t gl_max_lightmapsize;
2556 static void Mod_Q1BSP_LoadFaces(sizebuf_t *sb)
2558 msurface_t *surface;
2559 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber, lightmapsize, totallightmapsamples, lightmapoffset, texinfoindex;
2560 float texmins[2], texmaxs[2], val;
2561 rtexture_t *lightmaptexture, *deluxemaptexture;
2563 int structsize = loadmodel->brush.isbsp2 ? 28 : 20;
2565 if (sb->cursize % structsize)
2566 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
2567 count = sb->cursize / structsize;
2568 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
2569 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
2571 loadmodel->num_surfaces = count;
2573 loadmodel->brushq1.firstrender = true;
2574 loadmodel->brushq1.lightmapupdateflags = (unsigned char *)Mem_Alloc(loadmodel->mempool, count*sizeof(unsigned char));
2578 for (surfacenum = 0;surfacenum < count;surfacenum++)
2580 if (loadmodel->brush.isbsp2)
2581 numedges = BuffLittleLong(sb->data + structsize * surfacenum + 12);
2583 numedges = BuffLittleShort(sb->data + structsize * surfacenum + 8);
2584 totalverts += numedges;
2585 totaltris += numedges - 2;
2588 Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false);
2590 lightmaptexture = NULL;
2591 deluxemaptexture = r_texture_blanknormalmap;
2593 lightmapsize = bound(256, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d);
2594 totallightmapsamples = 0;
2598 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2600 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
2601 // the struct on disk is the same in BSP29 (Q1), BSP30 (HL1), and IBSP38 (Q2)
2602 planenum = loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2603 /*side = */loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2604 firstedge = MSG_ReadLittleLong(sb);
2605 numedges = loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2606 texinfoindex = loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2607 for (i = 0;i < MAXLIGHTMAPS;i++)
2608 surface->lightmapinfo->styles[i] = MSG_ReadByte(sb);
2609 lightmapoffset = MSG_ReadLittleLong(sb);
2611 // FIXME: validate edges, texinfo, etc?
2612 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)
2613 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)", firstedge, numedges, loadmodel->brushq1.numsurfedges);
2614 if ((unsigned int) texinfoindex >= (unsigned int) loadmodel->brushq1.numtexinfo)
2615 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)", texinfoindex, loadmodel->brushq1.numtexinfo);
2616 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
2617 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)", planenum, loadmodel->brush.num_planes);
2619 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + texinfoindex;
2620 surface->texture = loadmodel->data_textures + surface->lightmapinfo->texinfo->textureindex;
2622 // Q2BSP doesn't use lightmaps on sky or warped surfaces (water), but still has a lightofs of 0
2623 if (lightmapoffset == 0 && (surface->texture->q2flags & (Q2SURF_SKY | Q2SURF_WARP)))
2624 lightmapoffset = -1;
2626 //surface->flags = surface->texture->flags;
2627 //if (LittleShort(in->side))
2628 // surface->flags |= SURF_PLANEBACK;
2629 //surface->plane = loadmodel->brush.data_planes + planenum;
2631 surface->num_firstvertex = totalverts;
2632 surface->num_vertices = numedges;
2633 surface->num_firsttriangle = totaltris;
2634 surface->num_triangles = numedges - 2;
2635 totalverts += numedges;
2636 totaltris += numedges - 2;
2638 // convert edges back to a normal polygon
2639 for (i = 0;i < surface->num_vertices;i++)
2641 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
2643 // note: the q1bsp format does not allow a 0 surfedge (it would have no negative counterpart)
2645 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2647 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2648 s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2649 t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2650 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
2651 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
2652 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
2653 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
2654 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
2657 for (i = 0;i < surface->num_triangles;i++)
2659 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
2660 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
2661 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
2664 // compile additional data about the surface geometry
2665 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);
2666 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);
2667 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
2669 // generate surface extents information
2670 texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2671 texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2672 for (i = 1;i < surface->num_vertices;i++)
2674 for (j = 0;j < 2;j++)
2676 val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
2677 texmins[j] = min(texmins[j], val);
2678 texmaxs[j] = max(texmaxs[j], val);
2681 for (i = 0;i < 2;i++)
2683 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
2684 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
2687 smax = surface->lightmapinfo->extents[0] >> 4;
2688 tmax = surface->lightmapinfo->extents[1] >> 4;
2689 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2690 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2693 surface->lightmaptexture = NULL;
2694 surface->deluxemaptexture = r_texture_blanknormalmap;
2695 if (lightmapoffset == -1)
2697 surface->lightmapinfo->samples = NULL;
2699 // give non-lightmapped water a 1x white lightmap
2700 if (!loadmodel->brush.isq2bsp && surface->texture->name[0] == '*' && (surface->lightmapinfo->texinfo->q1flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
2702 surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2703 surface->lightmapinfo->styles[0] = 0;
2704 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
2708 else if (loadmodel->brush.ishlbsp || loadmodel->brush.isq2bsp) // LadyHavoc: HalfLife map (bsp version 30)
2709 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + lightmapoffset;
2710 else // LadyHavoc: white lighting (bsp version 29)
2712 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (lightmapoffset * 3);
2713 if (loadmodel->brushq1.nmaplightdata)
2714 surface->lightmapinfo->nmapsamples = loadmodel->brushq1.nmaplightdata + (lightmapoffset * 3);
2717 // check if we should apply a lightmap to this
2718 if (!(surface->lightmapinfo->texinfo->q1flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
2720 if (ssize > 256 || tsize > 256)
2721 Host_Error("Bad surface extents");
2723 if (lightmapsize < ssize)
2724 lightmapsize = ssize;
2725 if (lightmapsize < tsize)
2726 lightmapsize = tsize;
2728 totallightmapsamples += ssize*tsize;
2730 // force lightmap upload on first time seeing the surface
2732 // additionally this is used by the later code to see if a
2733 // lightmap is needed on this surface (rather than duplicating the
2735 loadmodel->brushq1.lightmapupdateflags[surfacenum] = true;
2736 loadmodel->lit = true;
2740 // small maps (such as ammo boxes especially) don't need big lightmap
2741 // textures, so this code tries to guess a good size based on
2742 // totallightmapsamples (size of the lightmaps lump basically), as well as
2743 // trying to max out the size if there is a lot of lightmap data to store
2744 // additionally, never choose a lightmapsize that is smaller than the
2745 // largest surface encountered (as it would fail)
2747 for (lightmapsize = 64; (lightmapsize < i) && (lightmapsize < bound(128, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d)) && (totallightmapsamples > lightmapsize*lightmapsize); lightmapsize*=2)
2750 // now that we've decided the lightmap texture size, we can do the rest
2751 if (cls.state != ca_dedicated)
2753 int stainmapsize = 0;
2754 mod_alloclightmap_state_t allocState;
2756 Mod_AllocLightmap_Init(&allocState, loadmodel->mempool, lightmapsize, lightmapsize);
2757 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2759 int iu, iv, lightmapx = 0, lightmapy = 0;
2760 float u, v, ubase, vbase, uscale, vscale;
2762 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
2765 smax = surface->lightmapinfo->extents[0] >> 4;
2766 tmax = surface->lightmapinfo->extents[1] >> 4;
2767 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2768 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2769 stainmapsize += ssize * tsize * 3;
2771 if (!lightmaptexture || !Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy))
2773 // allocate a texture pool if we need it
2774 if (loadmodel->texturepool == NULL)
2775 loadmodel->texturepool = R_AllocTexturePool();
2776 // could not find room, make a new lightmap
2777 loadmodel->brushq3.num_mergedlightmaps = lightmapnumber + 1;
2778 loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Realloc(loadmodel->mempool, loadmodel->brushq3.data_lightmaps, loadmodel->brushq3.num_mergedlightmaps * sizeof(loadmodel->brushq3.data_lightmaps[0]));
2779 loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Realloc(loadmodel->mempool, loadmodel->brushq3.data_deluxemaps, loadmodel->brushq3.num_mergedlightmaps * sizeof(loadmodel->brushq3.data_deluxemaps[0]));
2780 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);
2781 if (loadmodel->brushq1.nmaplightdata)
2782 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);
2784 Mod_AllocLightmap_Reset(&allocState);
2785 Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy);
2787 surface->lightmaptexture = lightmaptexture;
2788 surface->deluxemaptexture = deluxemaptexture;
2789 surface->lightmapinfo->lightmaporigin[0] = lightmapx;
2790 surface->lightmapinfo->lightmaporigin[1] = lightmapy;
2792 uscale = 1.0f / (float)lightmapsize;
2793 vscale = 1.0f / (float)lightmapsize;
2794 ubase = lightmapx * uscale;
2795 vbase = lightmapy * vscale;
2797 for (i = 0;i < surface->num_vertices;i++)
2799 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);
2800 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);
2801 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
2802 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
2803 // LadyHavoc: calc lightmap data offset for vertex lighting to use
2806 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
2810 if (cl_stainmaps.integer)
2812 // allocate stainmaps for permanent marks on walls and clear white
2813 unsigned char *stainsamples = NULL;
2814 stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, stainmapsize);
2815 memset(stainsamples, 255, stainmapsize);
2817 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2819 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
2821 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2822 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2823 surface->lightmapinfo->stainsamples = stainsamples;
2824 stainsamples += ssize * tsize * 3;
2829 // generate ushort elements array if possible
2830 if (loadmodel->surfmesh.data_element3s)
2831 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2832 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2835 static void Mod_BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
2838 // Host_Error("Mod_BSP_LoadNodes_RecursiveSetParent: runaway recursion");
2839 node->parent = parent;
2842 // this is a node, recurse to children
2843 Mod_BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
2844 Mod_BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
2845 // combine supercontents of children
2846 node->combinedsupercontents = node->children[0]->combinedsupercontents | node->children[1]->combinedsupercontents;
2851 mleaf_t *leaf = (mleaf_t *)node;
2852 // if this is a leaf, calculate supercontents mask from all collidable
2853 // primitives in the leaf (brushes and collision surfaces)
2854 // also flag if the leaf contains any collision surfaces
2855 leaf->combinedsupercontents = 0;
2856 // combine the supercontents values of all brushes in this leaf
2857 for (j = 0;j < leaf->numleafbrushes;j++)
2858 leaf->combinedsupercontents |= loadmodel->brush.data_brushes[leaf->firstleafbrush[j]].texture->supercontents;
2859 // check if this leaf contains any collision surfaces (q3 patches)
2860 for (j = 0;j < leaf->numleafsurfaces;j++)
2862 msurface_t *surface = loadmodel->data_surfaces + leaf->firstleafsurface[j];
2863 if (surface->num_collisiontriangles)
2865 leaf->containscollisionsurfaces = true;
2866 leaf->combinedsupercontents |= surface->texture->supercontents;
2872 static void Mod_Q1BSP_LoadNodes(sizebuf_t *sb)
2874 int i, j, count, p, child[2];
2876 int structsize = loadmodel->brush.isbsp2rmqe ? 32 : (loadmodel->brush.isbsp2 ? 44 : 24);
2878 if (sb->cursize % structsize)
2879 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
2880 count = sb->cursize / structsize;
2882 Host_Error("Mod_Q1BSP_LoadNodes: missing BSP tree in %s",loadmodel->name);
2883 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2885 loadmodel->brush.data_nodes = out;
2886 loadmodel->brush.num_nodes = count;
2888 for ( i=0 ; i<count ; i++, out++)
2890 p = MSG_ReadLittleLong(sb);
2891 out->plane = loadmodel->brush.data_planes + p;
2893 if (loadmodel->brush.isbsp2rmqe)
2895 child[0] = MSG_ReadLittleLong(sb);
2896 child[1] = MSG_ReadLittleLong(sb);
2897 out->mins[0] = MSG_ReadLittleShort(sb);
2898 out->mins[1] = MSG_ReadLittleShort(sb);
2899 out->mins[2] = MSG_ReadLittleShort(sb);
2900 out->maxs[0] = MSG_ReadLittleShort(sb);
2901 out->maxs[1] = MSG_ReadLittleShort(sb);
2902 out->maxs[2] = MSG_ReadLittleShort(sb);
2903 out->firstsurface = MSG_ReadLittleLong(sb);
2904 out->numsurfaces = MSG_ReadLittleLong(sb);
2906 else if (loadmodel->brush.isbsp2)
2908 child[0] = MSG_ReadLittleLong(sb);
2909 child[1] = MSG_ReadLittleLong(sb);
2910 out->mins[0] = MSG_ReadLittleFloat(sb);
2911 out->mins[1] = MSG_ReadLittleFloat(sb);
2912 out->mins[2] = MSG_ReadLittleFloat(sb);
2913 out->maxs[0] = MSG_ReadLittleFloat(sb);
2914 out->maxs[1] = MSG_ReadLittleFloat(sb);
2915 out->maxs[2] = MSG_ReadLittleFloat(sb);
2916 out->firstsurface = MSG_ReadLittleLong(sb);
2917 out->numsurfaces = MSG_ReadLittleLong(sb);
2921 child[0] = (unsigned short)MSG_ReadLittleShort(sb);
2922 child[1] = (unsigned short)MSG_ReadLittleShort(sb);
2923 if (child[0] >= count)
2925 if (child[1] >= count)
2928 out->mins[0] = MSG_ReadLittleShort(sb);
2929 out->mins[1] = MSG_ReadLittleShort(sb);
2930 out->mins[2] = MSG_ReadLittleShort(sb);
2931 out->maxs[0] = MSG_ReadLittleShort(sb);
2932 out->maxs[1] = MSG_ReadLittleShort(sb);
2933 out->maxs[2] = MSG_ReadLittleShort(sb);
2935 out->firstsurface = (unsigned short)MSG_ReadLittleShort(sb);
2936 out->numsurfaces = (unsigned short)MSG_ReadLittleShort(sb);
2939 for (j=0 ; j<2 ; j++)
2941 // LadyHavoc: this code supports broken bsp files produced by
2942 // arguire qbsp which can produce more than 32768 nodes, any value
2943 // below count is assumed to be a node number, any other value is
2944 // assumed to be a leaf number
2948 if (p < loadmodel->brush.num_nodes)
2949 out->children[j] = loadmodel->brush.data_nodes + p;
2952 Con_Printf("Mod_Q1BSP_LoadNodes: invalid node index %i (file has only %i nodes)\n", p, loadmodel->brush.num_nodes);
2953 // map it to the solid leaf
2954 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
2959 // get leaf index as a positive value starting at 0 (-1 becomes 0, -2 becomes 1, etc)
2961 if (p < loadmodel->brush.num_leafs)
2962 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + p);
2965 Con_Printf("Mod_Q1BSP_LoadNodes: invalid leaf index %i (file has only %i leafs)\n", p, loadmodel->brush.num_leafs);
2966 // map it to the solid leaf
2967 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
2973 Mod_BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
2976 static void Mod_Q1BSP_LoadLeafs(sizebuf_t *sb)
2979 int i, j, count, p, firstmarksurface, nummarksurfaces;
2980 int structsize = loadmodel->brush.isbsp2rmqe ? 32 : (loadmodel->brush.isbsp2 ? 44 : 28);
2982 if (sb->cursize % structsize)
2983 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2984 count = sb->cursize / structsize;
2985 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2987 loadmodel->brush.data_leafs = out;
2988 loadmodel->brush.num_leafs = count;
2989 // get visleafs from the submodel data
2990 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2991 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2992 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2993 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2995 // FIXME: this function could really benefit from some error checking
2996 for ( i=0 ; i<count ; i++, out++)
2998 out->contents = MSG_ReadLittleLong(sb);
3000 out->clusterindex = i - 1;
3001 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
3002 out->clusterindex = -1;
3004 p = MSG_ReadLittleLong(sb);
3005 // ignore visofs errors on leaf 0 (solid)
3006 if (p >= 0 && out->clusterindex >= 0)
3008 if (p >= loadmodel->brushq1.num_compressedpvs)
3009 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
3011 Mod_BSP_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);
3014 if (loadmodel->brush.isbsp2rmqe)
3016 out->mins[0] = MSG_ReadLittleShort(sb);
3017 out->mins[1] = MSG_ReadLittleShort(sb);
3018 out->mins[2] = MSG_ReadLittleShort(sb);
3019 out->maxs[0] = MSG_ReadLittleShort(sb);
3020 out->maxs[1] = MSG_ReadLittleShort(sb);
3021 out->maxs[2] = MSG_ReadLittleShort(sb);
3023 firstmarksurface = MSG_ReadLittleLong(sb);
3024 nummarksurfaces = MSG_ReadLittleLong(sb);
3026 else if (loadmodel->brush.isbsp2)
3028 out->mins[0] = MSG_ReadLittleFloat(sb);
3029 out->mins[1] = MSG_ReadLittleFloat(sb);
3030 out->mins[2] = MSG_ReadLittleFloat(sb);
3031 out->maxs[0] = MSG_ReadLittleFloat(sb);
3032 out->maxs[1] = MSG_ReadLittleFloat(sb);
3033 out->maxs[2] = MSG_ReadLittleFloat(sb);
3035 firstmarksurface = MSG_ReadLittleLong(sb);
3036 nummarksurfaces = MSG_ReadLittleLong(sb);
3040 out->mins[0] = MSG_ReadLittleShort(sb);
3041 out->mins[1] = MSG_ReadLittleShort(sb);
3042 out->mins[2] = MSG_ReadLittleShort(sb);
3043 out->maxs[0] = MSG_ReadLittleShort(sb);
3044 out->maxs[1] = MSG_ReadLittleShort(sb);
3045 out->maxs[2] = MSG_ReadLittleShort(sb);
3047 firstmarksurface = (unsigned short)MSG_ReadLittleShort(sb);
3048 nummarksurfaces = (unsigned short)MSG_ReadLittleShort(sb);
3051 if (firstmarksurface >= 0 && firstmarksurface + nummarksurfaces <= loadmodel->brush.num_leafsurfaces)
3053 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + firstmarksurface;
3054 out->numleafsurfaces = nummarksurfaces;
3058 Con_Printf("Mod_Q1BSP_LoadLeafs: invalid leafsurface range %i:%i outside range %i:%i\n", firstmarksurface, firstmarksurface+nummarksurfaces, 0, loadmodel->brush.num_leafsurfaces);
3059 out->firstleafsurface = NULL;
3060 out->numleafsurfaces = 0;
3063 for (j = 0;j < 4;j++)
3064 out->ambient_sound_level[j] = MSG_ReadByte(sb);
3068 static qbool Mod_Q1BSP_CheckWaterAlphaSupport(void)
3072 const unsigned char *pvs;
3073 // if there's no vis data, assume supported (because everything is visible all the time)
3074 if (!loadmodel->brush.data_pvsclusters)
3076 // check all liquid leafs to see if they can see into empty leafs, if any
3077 // can we can assume this map supports r_wateralpha
3078 for (i = 0, leaf = loadmodel->brush.data_leafs;i < loadmodel->brush.num_leafs;i++, leaf++)
3080 if ((leaf->contents == CONTENTS_WATER || leaf->contents == CONTENTS_SLIME) && leaf->clusterindex >= 0)
3082 pvs = loadmodel->brush.data_pvsclusters + leaf->clusterindex * loadmodel->brush.num_pvsclusterbytes;
3083 for (j = 0;j < loadmodel->brush.num_leafs;j++)
3084 if (CHECKPVSBIT(pvs, loadmodel->brush.data_leafs[j].clusterindex) && loadmodel->brush.data_leafs[j].contents == CONTENTS_EMPTY)
3091 static void Mod_Q1BSP_LoadClipnodes(sizebuf_t *sb, hullinfo_t *hullinfo)
3096 int structsize = loadmodel->brush.isbsp2 ? 12 : 8;
3098 if (sb->cursize % structsize)
3099 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
3100 count = sb->cursize / structsize;
3101 out = (mclipnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
3103 loadmodel->brushq1.clipnodes = out;
3104 loadmodel->brushq1.numclipnodes = count;
3106 for (i = 1; i < MAX_MAP_HULLS; i++)
3108 hull = &loadmodel->brushq1.hulls[i];
3109 hull->clipnodes = out;
3110 hull->firstclipnode = 0;
3111 hull->lastclipnode = count-1;
3112 hull->planes = loadmodel->brush.data_planes;
3113 hull->clip_mins[0] = hullinfo->hullsizes[i][0][0];
3114 hull->clip_mins[1] = hullinfo->hullsizes[i][0][1];
3115 hull->clip_mins[2] = hullinfo->hullsizes[i][0][2];
3116 hull->clip_maxs[0] = hullinfo->hullsizes[i][1][0];
3117 hull->clip_maxs[1] = hullinfo->hullsizes[i][1][1];
3118 hull->clip_maxs[2] = hullinfo->hullsizes[i][1][2];
3119 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
3122 for (i=0 ; i<count ; i++, out++)
3124 out->planenum = MSG_ReadLittleLong(sb);
3125 if (out->planenum < 0 || out->planenum >= loadmodel->brush.num_planes)
3126 Host_Error("%s: Corrupt clipping hull(out of range planenum)", loadmodel->name);
3127 if (loadmodel->brush.isbsp2)
3129 out->children[0] = MSG_ReadLittleLong(sb);
3130 out->children[1] = MSG_ReadLittleLong(sb);
3131 if (out->children[0] >= count)
3132 Host_Error("%s: Corrupt clipping hull (invalid child index)", loadmodel->name);
3133 if (out->children[1] >= count)
3134 Host_Error("%s: Corrupt clipping hull (invalid child index)", loadmodel->name);
3138 // LadyHavoc: this code supports arguire qbsp's broken clipnodes indices (more than 32768 clipnodes), values above count are assumed to be contents values
3139 out->children[0] = (unsigned short)MSG_ReadLittleShort(sb);
3140 out->children[1] = (unsigned short)MSG_ReadLittleShort(sb);
3141 if (out->children[0] >= count)
3142 out->children[0] -= 65536;
3143 if (out->children[1] >= count)
3144 out->children[1] -= 65536;
3149 //Duplicate the drawing hull structure as a clipping hull
3150 static void Mod_Q1BSP_MakeHull0(void)
3157 hull = &loadmodel->brushq1.hulls[0];
3159 in = loadmodel->brush.data_nodes;
3160 out = (mclipnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(*out));
3162 hull->clipnodes = out;
3163 hull->firstclipnode = 0;
3164 hull->lastclipnode = loadmodel->brush.num_nodes - 1;
3165 hull->planes = loadmodel->brush.data_planes;
3167 for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
3169 out->planenum = in->plane - loadmodel->brush.data_planes;
3170 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
3171 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
3175 static void Mod_Q1BSP_LoadLeaffaces(sizebuf_t *sb)
3178 int structsize = loadmodel->brush.isbsp2 ? 4 : 2;
3180 if (sb->cursize % structsize)
3181 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
3182 loadmodel->brush.num_leafsurfaces = sb->cursize / structsize;
3183 loadmodel->brush.data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
3185 if (loadmodel->brush.isbsp2)
3187 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
3189 j = MSG_ReadLittleLong(sb);
3190 if (j < 0 || j >= loadmodel->num_surfaces)
3191 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
3192 loadmodel->brush.data_leafsurfaces[i] = j;
3197 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
3199 j = (unsigned short) MSG_ReadLittleShort(sb);
3200 if (j >= loadmodel->num_surfaces)
3201 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
3202 loadmodel->brush.data_leafsurfaces[i] = j;
3207 static void Mod_Q1BSP_LoadSurfedges(sizebuf_t *sb)
3212 if (sb->cursize % structsize)
3213 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
3214 loadmodel->brushq1.numsurfedges = sb->cursize / structsize;
3215 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
3217 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
3218 loadmodel->brushq1.surfedges[i] = MSG_ReadLittleLong(sb);
3222 static void Mod_Q1BSP_LoadPlanes(sizebuf_t *sb)
3226 int structsize = 20;
3228 if (sb->cursize % structsize)
3229 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
3230 loadmodel->brush.num_planes = sb->cursize / structsize;
3231 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
3233 for (i = 0;i < loadmodel->brush.num_planes;i++, out++)
3235 out->normal[0] = MSG_ReadLittleFloat(sb);
3236 out->normal[1] = MSG_ReadLittleFloat(sb);
3237 out->normal[2] = MSG_ReadLittleFloat(sb);
3238 out->dist = MSG_ReadLittleFloat(sb);
3239 MSG_ReadLittleLong(sb); // type is not used, we use PlaneClassify
3244 // fixes up sky surfaces that have SKY contents behind them, so that they do not cast shadows (e1m5 logo shadow trick).
3245 static void Mod_Q1BSP_AssignNoShadowSkySurfaces(model_t *mod)
3248 msurface_t *surface;
3251 for (surfaceindex = mod->submodelsurfaces_start; surfaceindex < mod->submodelsurfaces_end;surfaceindex++)
3253 surface = mod->data_surfaces + surfaceindex;
3254 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
3256 // check if the point behind the surface polygon is SOLID or SKY contents
3257 VectorMAMAM(0.5f, surface->mins, 0.5f, surface->maxs, -0.25f, mod->surfmesh.data_normal3f + 3*surface->num_firstvertex, center);
3258 contents = Mod_Q1BSP_PointSuperContents(mod, 0, center);
3259 if (!(contents & SUPERCONTENTS_SOLID))
3260 surface->texture = surface->texture->skynoshadowtexture;
3265 static void Mod_Q1BSP_LoadMapBrushes(void)
3269 int submodel, numbrushes;
3271 char *text, *maptext;
3272 char mapfilename[MAX_QPATH];
3273 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
3274 strlcat (mapfilename, ".map", sizeof (mapfilename));
3275 maptext = (unsigned char*) FS_LoadFile(mapfilename, tempmempool, false, NULL);
3279 if (!COM_ParseToken_Simple(&data, false, false, true))
3284 if (!COM_ParseToken_Simple(&data, false, false, true))
3286 if (com_token[0] != '{')
3292 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
3295 if (!COM_ParseToken_Simple(&data, false, false, true))
3297 if (com_token[0] == '}')
3298 break; // end of entity
3299 if (com_token[0] == '{')
3306 if (submodel > loadmodel->brush.numsubmodels)
3308 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
3312 model = loadmodel->brush.submodels[submodel];
3319 if (!COM_ParseToken_Simple(&data, false, false, true))
3321 if (com_token[0] == '}')
3322 break; // end of brush
3323 // each brush face should be this format:
3324 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
3325 // FIXME: support hl .map format
3326 for (pointnum = 0;pointnum < 3;pointnum++)
3328 COM_ParseToken_Simple(&data, false, false, true);
3329 for (componentnum = 0;componentnum < 3;componentnum++)
3331 COM_ParseToken_Simple(&data, false, false, true);
3332 point[pointnum][componentnum] = atof(com_token);
3334 COM_ParseToken_Simple(&data, false, false, true);
3336 COM_ParseToken_Simple(&data, false, false, true);
3337 strlcpy(facetexture, com_token, sizeof(facetexture));
3338 COM_ParseToken_Simple(&data, false, false, true);
3339 //scroll_s = atof(com_token);
3340 COM_ParseToken_Simple(&data, false, false, true);
3341 //scroll_t = atof(com_token);
3342 COM_ParseToken_Simple(&data, false, false, true);
3343 //rotate = atof(com_token);
3344 COM_ParseToken_Simple(&data, false, false, true);
3345 //scale_s = atof(com_token);
3346 COM_ParseToken_Simple(&data, false, false, true);
3347 //scale_t = atof(com_token);
3348 TriangleNormal(point[0], point[1], point[2], planenormal);
3349 VectorNormalizeDouble(planenormal);
3350 planedist = DotProduct(point[0], planenormal);
3351 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
3361 #define MAX_PORTALPOINTS 64
3363 typedef struct portal_s
3366 mnode_t *nodes[2]; // [0] = front side of plane
3367 struct portal_s *next[2];
3369 double points[3*MAX_PORTALPOINTS];
3370 struct portal_s *chain; // all portals are linked into a list
3374 static memexpandablearray_t portalarray;
3376 static void Mod_BSP_RecursiveRecalcNodeBBox(mnode_t *node)
3378 // process only nodes (leafs already had their box calculated)
3382 // calculate children first
3383 Mod_BSP_RecursiveRecalcNodeBBox(node->children[0]);
3384 Mod_BSP_RecursiveRecalcNodeBBox(node->children[1]);
3386 // make combined bounding box from children
3387 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
3388 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
3389 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
3390 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
3391 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
3392 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
3395 static void Mod_BSP_FinalizePortals(void)
3397 int i, j, numportals, numpoints, portalindex, portalrange = (int)Mem_ExpandableArray_IndexRange(&portalarray);
3401 mleaf_t *leaf, *endleaf;
3403 // tally up portal and point counts and recalculate bounding boxes for all
3404 // leafs (because qbsp is very sloppy)
3405 leaf = loadmodel->brush.data_leafs;
3406 endleaf = leaf + loadmodel->brush.num_leafs;
3407 if (mod_recalculatenodeboxes.integer)
3409 for (;leaf < endleaf;leaf++)
3411 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
3412 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
3417 for (portalindex = 0;portalindex < portalrange;portalindex++)
3419 p = (portal_t*)Mem_ExpandableArray_RecordAtIndex(&portalarray, portalindex);
3422 // note: this check must match the one below or it will usually corrupt memory
3423 // 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
3424 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
3427 numpoints += p->numpoints * 2;
3430 loadmodel->brush.data_portals = (mportal_t *)Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
3431 loadmodel->brush.num_portals = numportals;
3432 loadmodel->brush.data_portalpoints = (mvertex_t *)((unsigned char *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
3433 loadmodel->brush.num_portalpoints = numpoints;
3434 // clear all leaf portal chains
3435 for (i = 0;i < loadmodel->brush.num_leafs;i++)
3436 loadmodel->brush.data_leafs[i].portals = NULL;
3437 // process all portals in the global portal chain, while freeing them
3438 portal = loadmodel->brush.data_portals;
3439 point = loadmodel->brush.data_portalpoints;
3440 for (portalindex = 0;portalindex < portalrange;portalindex++)
3442 p = (portal_t*)Mem_ExpandableArray_RecordAtIndex(&portalarray, portalindex);
3445 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1])
3447 // note: this check must match the one above or it will usually corrupt memory
3448 // 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
3449 if (((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
3451 // first make the back to front portal(forward portal)
3452 portal->points = point;
3453 portal->numpoints = p->numpoints;
3454 portal->plane.dist = p->plane.dist;
3455 VectorCopy(p->plane.normal, portal->plane.normal);
3456 portal->here = (mleaf_t *)p->nodes[1];
3457 portal->past = (mleaf_t *)p->nodes[0];
3459 for (j = 0;j < portal->numpoints;j++)
3461 VectorCopy(p->points + j*3, point->position);
3464 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
3465 PlaneClassify(&portal->plane);
3467 // link into leaf's portal chain
3468 portal->next = portal->here->portals;
3469 portal->here->portals = portal;
3471 // advance to next portal
3474 // then make the front to back portal(backward portal)
3475 portal->points = point;
3476 portal->numpoints = p->numpoints;
3477 portal->plane.dist = -p->plane.dist;
3478 VectorNegate(p->plane.normal, portal->plane.normal);
3479 portal->here = (mleaf_t *)p->nodes[0];
3480 portal->past = (mleaf_t *)p->nodes[1];
3482 for (j = portal->numpoints - 1;j >= 0;j--)
3484 VectorCopy(p->points + j*3, point->position);
3487 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
3488 PlaneClassify(&portal->plane);
3490 // link into leaf's portal chain
3491 portal->next = portal->here->portals;
3492 portal->here->portals = portal;
3494 // advance to next portal
3497 // add the portal's polygon points to the leaf bounding boxes
3498 if (mod_recalculatenodeboxes.integer)
3500 for (i = 0;i < 2;i++)
3502 leaf = (mleaf_t *)p->nodes[i];
3503 for (j = 0;j < p->numpoints;j++)
3505 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
3506 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
3507 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
3508 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
3509 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
3510 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
3516 // now recalculate the node bounding boxes from the leafs
3517 if (mod_recalculatenodeboxes.integer)
3518 Mod_BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes + loadmodel->brushq1.hulls[0].firstclipnode);
3526 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
3529 Host_Error("AddPortalToNodes: NULL front node");
3531 Host_Error("AddPortalToNodes: NULL back node");
3532 if (p->nodes[0] || p->nodes[1])
3533 Host_Error("AddPortalToNodes: already included");
3534 // 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
3536 p->nodes[0] = front;
3537 p->next[0] = (portal_t *)front->portals;
3538 front->portals = (mportal_t *)p;
3541 p->next[1] = (portal_t *)back->portals;
3542 back->portals = (mportal_t *)p;
3547 RemovePortalFromNode
3550 static void RemovePortalFromNodes(portal_t *portal)
3554 void **portalpointer;
3556 for (i = 0;i < 2;i++)
3558 node = portal->nodes[i];
3560 portalpointer = (void **) &node->portals;
3563 t = (portal_t *)*portalpointer;
3565 Host_Error("RemovePortalFromNodes: portal not in leaf");
3569 if (portal->nodes[0] == node)
3571 *portalpointer = portal->next[0];
3572 portal->nodes[0] = NULL;
3574 else if (portal->nodes[1] == node)
3576 *portalpointer = portal->next[1];
3577 portal->nodes[1] = NULL;
3580 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
3584 if (t->nodes[0] == node)
3585 portalpointer = (void **) &t->next[0];
3586 else if (t->nodes[1] == node)
3587 portalpointer = (void **) &t->next[1];
3589 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
3594 #define PORTAL_DIST_EPSILON (1.0 / 32.0)
3595 static double *portalpointsbuffer;
3596 static int portalpointsbufferoffset;
3597 static int portalpointsbuffersize;
3598 static void Mod_BSP_RecursiveNodePortals(mnode_t *node)
3601 mnode_t *front, *back, *other_node;
3602 mplane_t clipplane, *plane;
3603 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
3604 int numfrontpoints, numbackpoints;
3605 double *frontpoints, *backpoints;
3607 // if a leaf, we're done
3611 // get some space for our clipping operations to use
3612 if (portalpointsbuffersize < portalpointsbufferoffset + 6*MAX_PORTALPOINTS)
3614 portalpointsbuffersize = portalpointsbufferoffset * 2;
3615 portalpointsbuffer = (double *)Mem_Realloc(loadmodel->mempool, portalpointsbuffer, portalpointsbuffersize * sizeof(*portalpointsbuffer));
3617 frontpoints = portalpointsbuffer + portalpointsbufferoffset;
3618 portalpointsbufferoffset += 3*MAX_PORTALPOINTS;
3619 backpoints = portalpointsbuffer + portalpointsbufferoffset;
3620 portalpointsbufferoffset += 3*MAX_PORTALPOINTS;
3622 plane = node->plane;
3624 front = node->children[0];
3625 back = node->children[1];
3627 Host_Error("Mod_BSP_RecursiveNodePortals: corrupt node hierarchy");
3629 // create the new portal by generating a polygon for the node plane,
3630 // and clipping it by all of the other portals(which came from nodes above this one)
3631 nodeportal = (portal_t *)Mem_ExpandableArray_AllocRecord(&portalarray);
3632 nodeportal->plane = *plane;
3634 // 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)
3635 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);
3636 nodeportal->numpoints = 4;
3638 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
3640 clipplane = portal->plane;
3641 if (portal->nodes[0] == portal->nodes[1])
3642 Host_Error("Mod_BSP_RecursiveNodePortals: portal has same node on both sides(1)");
3643 if (portal->nodes[0] == node)
3645 else if (portal->nodes[1] == node)
3647 clipplane.dist = -clipplane.dist;
3648 VectorNegate(clipplane.normal, clipplane.normal);
3653 Host_Error("Mod_BSP_RecursiveNodePortals: mislinked portal");
3654 side = 0; // hush warning
3657 for (i = 0;i < nodeportal->numpoints*3;i++)
3658 frontpoints[i] = nodeportal->points[i];
3659 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);
3660 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
3664 if (nodeportal->numpoints < 3)
3666 Con_Print(CON_WARN "Mod_BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
3667 nodeportal->numpoints = 0;
3669 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
3671 Con_Print(CON_WARN "Mod_BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
3672 nodeportal->numpoints = 0;
3675 AddPortalToNodes(nodeportal, front, back);
3677 // split the portals of this node along this node's plane and assign them to the children of this node
3678 // (migrating the portals downward through the tree)
3679 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
3681 if (portal->nodes[0] == portal->nodes[1])
3682 Host_Error("Mod_BSP_RecursiveNodePortals: portal has same node on both sides(2)");
3683 if (portal->nodes[0] == node)
3685 else if (portal->nodes[1] == node)
3689 Host_Error("Mod_BSP_RecursiveNodePortals: mislinked portal");
3690 side = 0; // hush warning
3692 nextportal = portal->next[side];
3693 if (!portal->numpoints)
3696 other_node = portal->nodes[!side];
3697 RemovePortalFromNodes(portal);
3699 // cut the portal into two portals, one on each side of the node plane
3700 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);
3702 if (!numfrontpoints)
3705 AddPortalToNodes(portal, back, other_node);
3707 AddPortalToNodes(portal, other_node, back);
3713 AddPortalToNodes(portal, front, other_node);
3715 AddPortalToNodes(portal, other_node, front);
3719 // the portal is split
3720 splitportal = (portal_t *)Mem_ExpandableArray_AllocRecord(&portalarray);
3721 temp = splitportal->chain;
3722 *splitportal = *portal;
3723 splitportal->chain = temp;
3724 for (i = 0;i < numbackpoints*3;i++)
3725 splitportal->points[i] = backpoints[i];
3726 splitportal->numpoints = numbackpoints;
3727 for (i = 0;i < numfrontpoints*3;i++)
3728 portal->points[i] = frontpoints[i];
3729 portal->numpoints = numfrontpoints;
3733 AddPortalToNodes(portal, front, other_node);
3734 AddPortalToNodes(splitportal, back, other_node);
3738 AddPortalToNodes(portal, other_node, front);
3739 AddPortalToNodes(splitportal, other_node, back);
3743 Mod_BSP_RecursiveNodePortals(front);
3744 Mod_BSP_RecursiveNodePortals(back);
3746 portalpointsbufferoffset -= 6*MAX_PORTALPOINTS;
3749 static void Mod_BSP_MakePortals(void)
3751 Mem_ExpandableArray_NewArray(&portalarray, loadmodel->mempool, sizeof(portal_t), 1020*1024/sizeof(portal_t));
3752 portalpointsbufferoffset = 0;
3753 portalpointsbuffersize = 6*MAX_PORTALPOINTS*128;
3754 portalpointsbuffer = (double *)Mem_Alloc(loadmodel->mempool, portalpointsbuffersize * sizeof(*portalpointsbuffer));
3755 Mod_BSP_RecursiveNodePortals(loadmodel->brush.data_nodes + loadmodel->brushq1.hulls[0].firstclipnode);
3756 Mem_Free(portalpointsbuffer);
3757 portalpointsbuffer = NULL;
3758 portalpointsbufferoffset = 0;
3759 portalpointsbuffersize = 0;
3760 Mod_BSP_FinalizePortals();
3761 Mem_ExpandableArray_FreeArray(&portalarray);
3764 //Returns PVS data for a given point
3765 //(note: can return NULL)
3766 static unsigned char *Mod_BSP_GetPVS(model_t *model, const vec3_t p)
3769 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
3771 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
3772 if (((mleaf_t *)node)->clusterindex >= 0)
3773 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3778 static void Mod_BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
3782 float d = PlaneDiff(org, node->plane);
3784 node = node->children[0];
3785 else if (d < -radius)
3786 node = node->children[1];
3789 // go down both sides
3790 Mod_BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
3791 node = node->children[1];
3794 // if this leaf is in a cluster, accumulate the pvs bits
3795 if (((mleaf_t *)node)->clusterindex >= 0)
3798 unsigned char *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3799 for (i = 0;i < pvsbytes;i++)
3800 pvsbuffer[i] |= pvs[i];
3804 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
3805 //of the given point.
3806 static int Mod_BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength, qbool merge)
3808 int bytes = model->brush.num_pvsclusterbytes;
3809 bytes = min(bytes, pvsbufferlength);
3810 if (r_novis.integer || r_trippy.integer || !model->brush.num_pvsclusters || !Mod_BSP_GetPVS(model, org))
3812 memset(pvsbuffer, 0xFF, bytes);
3816 memset(pvsbuffer, 0, bytes);
3817 Mod_BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
3821 static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
3826 VectorSubtract(inmaxs, inmins, size);
3827 if (size[0] < mod_q1bsp_zero_hullsize_cutoff.value)
3828 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3829 else if (cmodel->brush.ishlbsp)
3833 if (size[2] < 54) // pick the nearest of 36 or 72
3834 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
3836 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
3839 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
3844 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
3846 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
3848 VectorCopy(inmins, outmins);
3849 VectorAdd(inmins, hull->clip_size, outmaxs);
3852 void Mod_CollisionBIH_TraceLineAgainstSurfaces(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);
3854 void Mod_2PSB_Load(model_t *mod, void *buffer, void *bufferend)
3856 mod->brush.isbsp2 = true;
3857 mod->brush.isbsp2rmqe = true; // like bsp2 except leaf/node bounds are 16bit (unexpanded)
3858 mod->modeldatatypestring = "Q1BSP2rmqe";
3859 Mod_Q1BSP_Load(mod, buffer, bufferend);
3862 void Mod_BSP2_Load(model_t *mod, void *buffer, void *bufferend)
3864 mod->brush.isbsp2 = true;
3865 mod->modeldatatypestring = "Q1BSP2";
3866 Mod_Q1BSP_Load(mod, buffer, bufferend);
3869 void Mod_HLBSP_Load(model_t *mod, void *buffer, void *bufferend)
3871 mod->brush.ishlbsp = true;
3872 mod->modeldatatypestring = "HLBSP";
3873 Mod_Q1BSP_Load(mod, buffer, bufferend);
3876 void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
3879 sizebuf_t lumpsb[HEADER_LUMPS];
3881 float dist, modelyawradius, modelradius;
3882 msurface_t *surface;
3883 hullinfo_t hullinfo;
3884 int totalstylesurfaces, totalstyles, stylecounts[256], remapstyles[256];
3885 model_brush_lightstyleinfo_t styleinfo[256];
3886 unsigned char *datapointer;
3889 MSG_InitReadBuffer(&sb, (unsigned char *)buffer, (unsigned char *)bufferend - (unsigned char *)buffer);
3891 mod->type = mod_brushq1;
3893 mod->brush.skymasking = true;
3894 i = MSG_ReadLittleLong(&sb);
3896 if(!mod->modeldatatypestring)
3897 mod->modeldatatypestring = "Q1BSP";
3899 // fill in hull info
3900 VectorClear (hullinfo.hullsizes[0][0]);
3901 VectorClear (hullinfo.hullsizes[0][1]);
3902 if (mod->brush.ishlbsp)
3904 hullinfo.filehulls = 4;
3905 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
3906 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
3907 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
3908 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
3909 VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
3910 VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
3914 hullinfo.filehulls = 4;
3915 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
3916 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
3917 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
3918 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
3922 for (i = 0; i < HEADER_LUMPS; i++)
3924 int offset = MSG_ReadLittleLong(&sb);
3925 int size = MSG_ReadLittleLong(&sb);
3926 if (offset < 0 || offset + size > sb.cursize)
3927 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);
3928 MSG_InitReadBuffer(&lumpsb[i], sb.data + offset, size);
3931 mod->soundfromcenter = true;
3932 mod->TraceBox = Mod_Q1BSP_TraceBox;
3933 mod->TraceLine = Mod_Q1BSP_TraceLine;
3934 mod->TracePoint = Mod_Q1BSP_TracePoint;
3935 mod->PointSuperContents = Mod_Q1BSP_PointSuperContents;
3936 mod->TraceLineAgainstSurfaces = Mod_Q1BSP_TraceLineAgainstSurfaces;
3937 mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
3938 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3939 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3940 mod->brush.GetPVS = Mod_BSP_GetPVS;
3941 mod->brush.FatPVS = Mod_BSP_FatPVS;
3942 mod->brush.BoxTouchingPVS = Mod_BSP_BoxTouchingPVS;
3943 mod->brush.BoxTouchingLeafPVS = Mod_BSP_BoxTouchingLeafPVS;
3944 mod->brush.BoxTouchingVisibleLeafs = Mod_BSP_BoxTouchingVisibleLeafs;
3945 mod->brush.FindBoxClusters = Mod_BSP_FindBoxClusters;
3946 mod->brush.LightPoint = Mod_BSP_LightPoint;
3947 mod->brush.FindNonSolidLocation = Mod_BSP_FindNonSolidLocation;
3948 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3949 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3950 mod->brush.PointInLeaf = Mod_BSP_PointInLeaf;
3951 mod->Draw = R_Mod_Draw;
3952 mod->DrawDepth = R_Mod_DrawDepth;
3953 mod->DrawDebug = R_Mod_DrawDebug;
3954 mod->DrawPrepass = R_Mod_DrawPrepass;
3955 mod->GetLightInfo = R_Mod_GetLightInfo;
3956 mod->CompileShadowMap = R_Mod_CompileShadowMap;
3957 mod->DrawShadowMap = R_Mod_DrawShadowMap;
3958 mod->DrawLight = R_Mod_DrawLight;
3962 mod->brush.qw_md4sum = 0;
3963 mod->brush.qw_md4sum2 = 0;
3964 for (i = 0;i < HEADER_LUMPS;i++)
3967 if (i == LUMP_ENTITIES)
3969 temp = Com_BlockChecksum(lumpsb[i].data, lumpsb[i].cursize);
3970 mod->brush.qw_md4sum ^= LittleLong(temp);
3971 if (i == LUMP_VISIBILITY || i == LUMP_LEAFS || i == LUMP_NODES)
3973 mod->brush.qw_md4sum2 ^= LittleLong(temp);
3976 Mod_Q1BSP_LoadEntities(&lumpsb[LUMP_ENTITIES]);
3977 Mod_Q1BSP_LoadVertexes(&lumpsb[LUMP_VERTEXES]);
3978 Mod_Q1BSP_LoadEdges(&lumpsb[LUMP_EDGES]);
3979 Mod_Q1BSP_LoadSurfedges(&lumpsb[LUMP_SURFEDGES]);
3980 Mod_Q1BSP_LoadTextures(&lumpsb[LUMP_TEXTURES]);
3981 Mod_Q1BSP_LoadLighting(&lumpsb[LUMP_LIGHTING]);
3982 Mod_Q1BSP_LoadPlanes(&lumpsb[LUMP_PLANES]);
3983 Mod_Q1BSP_LoadTexinfo(&lumpsb[LUMP_TEXINFO]);
3984 Mod_Q1BSP_LoadFaces(&lumpsb[LUMP_FACES]);
3985 Mod_Q1BSP_LoadLeaffaces(&lumpsb[LUMP_MARKSURFACES]);
3986 Mod_Q1BSP_LoadVisibility(&lumpsb[LUMP_VISIBILITY]);
3987 // load submodels before leafs because they contain the number of vis leafs
3988 Mod_BSP_LoadSubmodels(&lumpsb[LUMP_MODELS], &hullinfo);
3989 Mod_Q1BSP_LoadLeafs(&lumpsb[LUMP_LEAFS]);
3990 Mod_Q1BSP_LoadNodes(&lumpsb[LUMP_NODES]);
3991 Mod_Q1BSP_LoadClipnodes(&lumpsb[LUMP_CLIPNODES], &hullinfo);
3993 for (i = 0; i < HEADER_LUMPS; i++)
3994 if (lumpsb[i].readcount != lumpsb[i].cursize && i != LUMP_TEXTURES && i != LUMP_LIGHTING)
3995 Host_Error("Lump %i incorrectly loaded (readcount %i, size %i)\n", i, lumpsb[i].readcount, lumpsb[i].cursize);
3997 // check if the map supports transparent water rendering
3998 loadmodel->brush.supportwateralpha = Mod_Q1BSP_CheckWaterAlphaSupport();
4000 // we don't need the compressed pvs data anymore
4001 if (mod->brushq1.data_compressedpvs)
4002 Mem_Free(mod->brushq1.data_compressedpvs);
4003 mod->brushq1.data_compressedpvs = NULL;
4004 mod->brushq1.num_compressedpvs = 0;
4006 Mod_Q1BSP_MakeHull0();
4007 if (mod_bsp_portalize.integer)
4008 Mod_BSP_MakePortals();
4010 mod->numframes = 2; // regular and alternate animation
4013 if (loadmodel->brush.numsubmodels)
4014 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
4016 // LadyHavoc: to clear the fog around the original quake submodel code, I
4018 // first of all, some background info on the submodels:
4019 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
4020 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
4021 // now the weird for loop itself:
4022 // the loop functions in an odd way, on each iteration it sets up the
4023 // current 'mod' model (which despite the confusing code IS the model of
4024 // the number i), at the end of the loop it duplicates the model to become
4025 // the next submodel, and loops back to set up the new submodel.
4027 // LadyHavoc: now the explanation of my sane way (which works identically):
4028 // set up the world model, then on each submodel copy from the world model
4029 // and set up the submodel with the respective model info.
4030 totalstylesurfaces = 0;
4032 for (i = 0;i < mod->brush.numsubmodels;i++)
4034 memset(stylecounts, 0, sizeof(stylecounts));
4035 for (k = 0;k < mod->brushq1.submodels[i].numfaces;k++)
4037 surface = mod->data_surfaces + mod->brushq1.submodels[i].firstface + k;
4038 for (j = 0;j < MAXLIGHTMAPS;j++)
4039 stylecounts[surface->lightmapinfo->styles[j]]++;
4041 for (k = 0;k < 255;k++)
4045 totalstylesurfaces += stylecounts[k];
4048 datapointer = (unsigned char *)Mem_Alloc(mod->mempool, mod->num_surfaces * sizeof(int) + totalstyles * sizeof(model_brush_lightstyleinfo_t) + totalstylesurfaces * sizeof(int *));
4049 mod->modelsurfaces_sorted = (int*)datapointer;datapointer += mod->num_surfaces * sizeof(int);
4050 for (i = 0;i < mod->brush.numsubmodels;i++)
4052 // LadyHavoc: this code was originally at the end of this loop, but
4053 // has been transformed to something more readable at the start here.
4058 // duplicate the basic information
4059 dpsnprintf(name, sizeof(name), "*%i", i);
4060 mod = Mod_FindName(name, loadmodel->name);
4061 // copy the base model to this one
4063 // rename the clone back to its proper name
4064 strlcpy(mod->name, name, sizeof(mod->name));
4065 mod->brush.parentmodel = loadmodel;
4066 // textures and memory belong to the main model
4067 mod->texturepool = NULL;
4068 mod->mempool = NULL;
4069 mod->brush.GetPVS = NULL;
4070 mod->brush.FatPVS = NULL;
4071 mod->brush.BoxTouchingPVS = NULL;
4072 mod->brush.BoxTouchingLeafPVS = NULL;
4073 mod->brush.BoxTouchingVisibleLeafs = NULL;
4074 mod->brush.FindBoxClusters = NULL;
4075 mod->brush.LightPoint = NULL;
4076 mod->brush.AmbientSoundLevelsForPoint = NULL;
4079 mod->brush.submodel = i;
4081 if (loadmodel->brush.submodels)
4082 loadmodel->brush.submodels[i] = mod;
4084 bm = &mod->brushq1.submodels[i];
4086 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
4087 for (j=1 ; j<MAX_MAP_HULLS ; j++)
4089 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
4090 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
4093 mod->submodelsurfaces_start = bm->firstface;
4094 mod->submodelsurfaces_end = bm->firstface + bm->numfaces;
4096 // set node/leaf parents for this submodel
4097 Mod_BSP_LoadNodes_RecursiveSetParent(mod->brush.data_nodes + mod->brushq1.hulls[0].firstclipnode, NULL);
4099 // this has to occur after hull info has been set, as it uses Mod_Q1BSP_PointSuperContents
4100 Mod_Q1BSP_AssignNoShadowSkySurfaces(mod);
4102 // copy the submodel bounds, then enlarge the yaw and rotated bounds according to radius
4103 // (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)
4104 VectorCopy(bm->mins, mod->normalmins);
4105 VectorCopy(bm->maxs, mod->normalmaxs);
4106 dist = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
4107 modelyawradius = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
4108 modelyawradius = dist*dist+modelyawradius*modelyawradius;
4109 modelradius = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
4110 modelradius = modelyawradius + modelradius * modelradius;
4111 modelyawradius = sqrt(modelyawradius);
4112 modelradius = sqrt(modelradius);
4113 mod->yawmins[0] = mod->yawmins[1] = -modelyawradius;
4114 mod->yawmins[2] = mod->normalmins[2];
4115 mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius;
4116 mod->yawmaxs[2] = mod->normalmaxs[2];
4117 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
4118 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
4119 mod->radius = modelradius;
4120 mod->radius2 = modelradius * modelradius;
4122 Mod_SetDrawSkyAndWater(mod);
4124 if (mod->submodelsurfaces_start < mod->submodelsurfaces_end)
4126 // build lightstyle update chains
4127 // (used to rapidly mark lightmapupdateflags on many surfaces
4128 // when d_lightstylevalue changes)
4129 memset(stylecounts, 0, sizeof(stylecounts));
4130 for (k = mod->submodelsurfaces_start;k < mod->submodelsurfaces_end;k++)
4131 for (j = 0;j < MAXLIGHTMAPS;j++)
4132 stylecounts[mod->data_surfaces[k].lightmapinfo->styles[j]]++;
4133 mod->brushq1.num_lightstyles = 0;
4134 for (k = 0;k < 255;k++)
4138 styleinfo[mod->brushq1.num_lightstyles].style = k;
4139 styleinfo[mod->brushq1.num_lightstyles].value = 0;
4140 styleinfo[mod->brushq1.num_lightstyles].numsurfaces = 0;
4141 styleinfo[mod->brushq1.num_lightstyles].surfacelist = (int *)datapointer;datapointer += stylecounts[k] * sizeof(int);
4142 remapstyles[k] = mod->brushq1.num_lightstyles;
4143 mod->brushq1.num_lightstyles++;
4146 for (k = mod->submodelsurfaces_start;k < mod->submodelsurfaces_end;k++)
4148 surface = mod->data_surfaces + k;
4149 for (j = 0;j < MAXLIGHTMAPS;j++)
4151 if (surface->lightmapinfo->styles[j] != 255)
4153 int r = remapstyles[surface->lightmapinfo->styles[j]];
4154 styleinfo[r].surfacelist[styleinfo[r].numsurfaces++] = k;
4158 mod->brushq1.data_lightstyleinfo = (model_brush_lightstyleinfo_t *)datapointer;datapointer += mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t);
4159 memcpy(mod->brushq1.data_lightstyleinfo, styleinfo, mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t));
4163 // LadyHavoc: empty submodel(lacrima.bsp has such a glitch)
4164 Con_Printf(CON_WARN "warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
4166 //mod->brushq1.num_visleafs = bm->visleafs;
4168 // build a Bounding Interval Hierarchy for culling triangles in light rendering
4169 Mod_MakeCollisionBIH(mod, true, &mod->render_bih);
4171 if (mod_q1bsp_polygoncollisions.integer)
4173 mod->collision_bih = mod->render_bih;
4174 // point traces and contents checks still use the bsp tree
4175 mod->TraceLine = Mod_CollisionBIH_TraceLine;
4176 mod->TraceBox = Mod_CollisionBIH_TraceBox;
4177 mod->TraceBrush = Mod_CollisionBIH_TraceBrush;
4178 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLineAgainstSurfaces;
4181 // generate VBOs and other shared data before cloning submodels
4185 Mod_Q1BSP_LoadMapBrushes();
4186 //Mod_Q1BSP_ProcessLightList();
4191 // make the model surface list (used by shadowing/lighting)
4192 Mod_MakeSortedSurfaces(loadmodel);
4194 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);
4197 int Mod_Q2BSP_SuperContentsFromNativeContents(int nativecontents)
4199 int supercontents = 0;
4200 if (nativecontents & CONTENTSQ2_SOLID)
4201 supercontents |= SUPERCONTENTS_SOLID;
4202 if (nativecontents & CONTENTSQ2_WATER)
4203 supercontents |= SUPERCONTENTS_WATER;
4204 if (nativecontents & CONTENTSQ2_SLIME)
4205 supercontents |= SUPERCONTENTS_SLIME;
4206 if (nativecontents & CONTENTSQ2_LAVA)
4207 supercontents |= SUPERCONTENTS_LAVA;
4208 if (nativecontents & CONTENTSQ2_MONSTER)
4209 supercontents |= SUPERCONTENTS_BODY;
4210 if (nativecontents & CONTENTSQ2_DEADMONSTER)
4211 supercontents |= SUPERCONTENTS_CORPSE;
4212 if (nativecontents & CONTENTSQ2_PLAYERCLIP)
4213 supercontents |= SUPERCONTENTS_PLAYERCLIP;
4214 if (nativecontents & CONTENTSQ2_MONSTERCLIP)
4215 supercontents |= SUPERCONTENTS_MONSTERCLIP;
4216 if (!(nativecontents & CONTENTSQ2_TRANSLUCENT))
4217 supercontents |= SUPERCONTENTS_OPAQUE;
4218 return supercontents;
4221 int Mod_Q2BSP_NativeContentsFromSuperContents(int supercontents)
4223 int nativecontents = 0;
4224 if (supercontents & SUPERCONTENTS_SOLID)
4225 nativecontents |= CONTENTSQ2_SOLID;
4226 if (supercontents & SUPERCONTENTS_WATER)
4227 nativecontents |= CONTENTSQ2_WATER;
4228 if (supercontents & SUPERCONTENTS_SLIME)
4229 nativecontents |= CONTENTSQ2_SLIME;
4230 if (supercontents & SUPERCONTENTS_LAVA)
4231 nativecontents |= CONTENTSQ2_LAVA;
4232 if (supercontents & SUPERCONTENTS_BODY)
4233 nativecontents |= CONTENTSQ2_MONSTER;
4234 if (supercontents & SUPERCONTENTS_CORPSE)
4235 nativecontents |= CONTENTSQ2_DEADMONSTER;
4236 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
4237 nativecontents |= CONTENTSQ2_PLAYERCLIP;
4238 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
4239 nativecontents |= CONTENTSQ2_MONSTERCLIP;
4240 if (!(supercontents & SUPERCONTENTS_OPAQUE))
4241 nativecontents |= CONTENTSQ2_TRANSLUCENT;
4242 return nativecontents;
4245 static void Mod_Q2BSP_LoadVisibility(sizebuf_t *sb)
4248 loadmodel->brushq1.num_compressedpvs = 0;
4249 loadmodel->brushq1.data_compressedpvs = NULL;
4250 loadmodel->brush.num_pvsclusters = 0;
4251 loadmodel->brush.num_pvsclusterbytes = 0;
4252 loadmodel->brush.data_pvsclusters = NULL;
4257 count = MSG_ReadLittleLong(sb);
4258 loadmodel->brush.num_pvsclusters = count;
4259 loadmodel->brush.num_pvsclusterbytes = (count+7)>>3;
4260 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, count*loadmodel->brush.num_pvsclusterbytes);
4261 for (i = 0;i < count;i++)
4263 int pvsofs = MSG_ReadLittleLong(sb);
4264 /*int phsofs = */MSG_ReadLittleLong(sb);
4265 // decompress the vis data for this cluster
4266 // (note this accesses the underlying data store of sb, which is kind of evil)
4267 Mod_BSP_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);
4269 // hush the loading error check later - we had to do random access on this lump, so we didn't read to the end
4270 sb->readcount = sb->cursize;
4273 static void Mod_Q2BSP_LoadNodes(sizebuf_t *sb)
4275 int i, j, count, p, child[2];
4277 int structsize = 28;
4279 if (sb->cursize % structsize)
4280 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
4281 count = sb->cursize / structsize;
4283 Host_Error("Mod_Q2BSP_LoadNodes: missing BSP tree in %s",loadmodel->name);
4284 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
4286 loadmodel->brush.data_nodes = out;
4287 loadmodel->brush.num_nodes = count;
4289 for ( i=0 ; i<count ; i++, out++)
4291 p = MSG_ReadLittleLong(sb);
4292 out->plane = loadmodel->brush.data_planes + p;
4293 child[0] = MSG_ReadLittleLong(sb);
4294 child[1] = MSG_ReadLittleLong(sb);
4295 out->mins[0] = MSG_ReadLittleShort(sb);
4296 out->mins[1] = MSG_ReadLittleShort(sb);
4297 out->mins[2] = MSG_ReadLittleShort(sb);
4298 out->maxs[0] = MSG_ReadLittleShort(sb);
4299 out->maxs[1] = MSG_ReadLittleShort(sb);
4300 out->maxs[2] = MSG_ReadLittleShort(sb);
4301 out->firstsurface = (unsigned short)MSG_ReadLittleShort(sb);
4302 out->numsurfaces = (unsigned short)MSG_ReadLittleShort(sb);
4303 if (out->firstsurface + out->numsurfaces > (unsigned int)loadmodel->num_surfaces)
4305 Con_Printf("Mod_Q2BSP_LoadNodes: invalid surface index range %i+%i (file has only %i surfaces)\n", out->firstsurface, out->numsurfaces, loadmodel->num_surfaces);
4306 out->firstsurface = 0;
4307 out->numsurfaces = 0;
4309 for (j=0 ; j<2 ; j++)
4314 if (p < loadmodel->brush.num_nodes)
4315 out->children[j] = loadmodel->brush.data_nodes + p;
4318 Con_Printf("Mod_Q2BSP_LoadNodes: invalid node index %i (file has only %i nodes)\n", p, loadmodel->brush.num_nodes);
4319 // map it to the solid leaf
4320 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
4325 // get leaf index as a positive value starting at 0 (-1 becomes 0, -2 becomes 1, etc)
4327 if (p < loadmodel->brush.num_leafs)
4328 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + p);
4331 Con_Printf("Mod_Q2BSP_LoadNodes: invalid leaf index %i (file has only %i leafs)\n", p, loadmodel->brush.num_leafs);
4332 // map it to the solid leaf
4333 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
4339 Mod_BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
4342 static void Mod_Q2BSP_LoadTexinfo(sizebuf_t *sb)
4346 int structsize = 76;
4347 int maxtextures = 1024; // hardcoded limit of quake2 engine, so we may as well use it as an upper bound
4348 char filename[MAX_QPATH];
4350 if (sb->cursize % structsize)
4351 Host_Error("Mod_Q2BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
4352 count = sb->cursize / structsize;
4353 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4354 loadmodel->brushq1.texinfo = out;
4355 loadmodel->brushq1.numtexinfo = count;
4356 loadmodel->num_texturesperskin = 0;
4357 loadmodel->data_textures = (texture_t*)Mem_Alloc(loadmodel->mempool, maxtextures * sizeof(texture_t));
4359 for (i = 0;i < count;i++, out++)
4362 for (k = 0;k < 2;k++)
4363 for (j = 0;j < 4;j++)
4364 out->vecs[k][j] = MSG_ReadLittleFloat(sb);
4366 out->q2flags = MSG_ReadLittleLong(sb);
4367 out->q2value = MSG_ReadLittleLong(sb);
4368 MSG_ReadBytes(sb, 32, (unsigned char*)out->q2texture);
4369 out->q2texture[31] = 0; // make absolutely sure it is terminated
4370 out->q2nexttexinfo = MSG_ReadLittleLong(sb);
4372 // find an existing match for the texture if possible
4373 dpsnprintf(filename, sizeof(filename), "textures/%s.wal", out->q2texture);
4374 for (j = 0;j < loadmodel->num_texturesperskin;j++)
4375 if (!strcmp(filename, loadmodel->data_textures[j].name)
4376 && out->q2flags == loadmodel->data_textures[j].q2flags
4377 && out->q2value == loadmodel->data_textures[j].q2value)
4379 // if we don't find the texture, store the new texture
4380 if (j == loadmodel->num_texturesperskin)
4382 if (loadmodel->num_texturesperskin < maxtextures)
4384 texture_t *tx = loadmodel->data_textures + j;
4385 int q2flags = out->q2flags;
4386 unsigned char *walfile = NULL;
4387 fs_offset_t walfilesize = 0;
4388 Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, tx, filename, true, true, TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL);
4389 // now read the .wal file to get metadata (even if a .tga was overriding it, we still need the wal data)
4390 walfile = FS_LoadFile(filename, tempmempool, true, &walfilesize);
4394 LoadWAL_GetMetadata(walfile, (int)walfilesize, &w, &h, NULL, NULL, &tx->q2contents, NULL);
4404 tx->q2flags = out->q2flags;
4405 tx->q2value = out->q2value;
4406 // also modify the texture to have the correct contents and such based on flags
4407 // note that we create multiple texture_t structures if q2flags differs
4408 if (q2flags & Q2SURF_LIGHT)
4410 // doesn't mean anything to us
4412 if (q2flags & Q2SURF_SLICK)
4414 // would be nice to support...
4416 if (q2flags & Q2SURF_SKY)
4418 // sky is a rather specific thing
4419 q2flags &= ~Q2SURF_NODRAW; // quake2 had a slightly different meaning than we have in mind here...
4420 tx->basematerialflags = MATERIALFLAG_SKY;
4421 tx->supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP | SUPERCONTENTS_OPAQUE;
4422 tx->surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
4424 if (q2flags & Q2SURF_WARP)
4426 // we use a scroll instead of a warp
4427 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_FULLBRIGHT;
4428 // if it's also transparent, we can enable the WATERSHADER
4429 // but we do not set the WATERALPHA flag because we don't
4430 // want to honor r_wateralpha in q2bsp
4431 // (it would go against the artistic intent)
4432 if (q2flags & (Q2SURF_TRANS33 | Q2SURF_TRANS66))
4433 tx->basematerialflags |= MATERIALFLAG_WATERSHADER;
4435 if (q2flags & Q2SURF_TRANS33)
4437 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED;
4438 tx->basealpha = 1.0f / 3.0f;
4439 tx->supercontents &= ~SUPERCONTENTS_OPAQUE;
4440 if (tx->q2contents & Q2CONTENTS_SOLID)
4441 tx->q2contents = (tx->q2contents & ~Q2CONTENTS_SOLID) | Q2CONTENTS_WINDOW;
4443 if (q2flags & Q2SURF_TRANS66)
4445 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED;
4446 tx->basealpha = 2.0f / 3.0f;
4447 tx->supercontents &= ~SUPERCONTENTS_OPAQUE;
4448 if (tx->q2contents & Q2CONTENTS_SOLID)
4449 tx->q2contents = (tx->q2contents & ~Q2CONTENTS_SOLID) | Q2CONTENTS_WINDOW;
4451 if ((q2flags & Q2SURF_FLOWING) && tx->materialshaderpass != NULL)
4453 tx->materialshaderpass->tcmods[0].tcmod = Q3TCMOD_SCROLL;
4454 if (q2flags & Q2SURF_WARP)
4455 tx->materialshaderpass->tcmods[0].parms[0] = -0.5f;
4457 tx->materialshaderpass->tcmods[0].parms[0] = -1.6f;
4458 tx->materialshaderpass->tcmods[0].parms[1] = 0.0f;
4460 if (q2flags & Q2SURF_ALPHATEST)
4462 // KMQUAKE2 and other modded engines added this flag for lit alpha tested surfaces
4463 tx->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
4465 else if (q2flags & (Q2SURF_TRANS33 | Q2SURF_TRANS66 | Q2SURF_WARP))
4467 if (!mod_q2bsp_littransparentsurfaces.integer)
4468 tx->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
4470 if (q2flags & Q2SURF_NODRAW)
4472 tx->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
4474 if (tx->q2contents & (Q2CONTENTS_TRANSLUCENT | Q2CONTENTS_MONSTERCLIP | Q2CONTENTS_PLAYERCLIP))
4475 tx->q2contents |= Q2CONTENTS_DETAIL;
4476 if (!(tx->q2contents & (Q2CONTENTS_SOLID | Q2CONTENTS_WINDOW | Q2CONTENTS_AUX | Q2CONTENTS_LAVA | Q2CONTENTS_SLIME | Q2CONTENTS_WATER | Q2CONTENTS_MIST | Q2CONTENTS_PLAYERCLIP | Q2CONTENTS_MONSTERCLIP | Q2CONTENTS_MIST)))
4477 tx->q2contents |= Q2CONTENTS_SOLID;
4478 if (tx->q2flags & (Q2SURF_HINT | Q2SURF_SKIP))
4480 tx->supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(tx->q2contents);
4481 // set the current values to the base values
4482 tx->currentframe = tx;
4483 tx->currentskinframe = tx->materialshaderpass != NULL ? tx->materialshaderpass->skinframes[0] : NULL;
4484 tx->currentmaterialflags = tx->basematerialflags;
4485 loadmodel->num_texturesperskin++;
4486 loadmodel->num_textures = loadmodel->num_texturesperskin;
4490 Con_Printf("Mod_Q2BSP_LoadTexinfo: max textures reached (%i)\n", maxtextures);
4491 j = 0; // use first texture and give up
4494 // store the index we found for this texture
4495 out->textureindex = j;
4498 // realloc the textures array now that we know how many we actually need
4499 loadmodel->data_textures = (texture_t*)Mem_Realloc(loadmodel->mempool, loadmodel->data_textures, loadmodel->num_texturesperskin * sizeof(texture_t));
4501 // now assemble the texture chains
4502 // if we encounter the textures out of order, the later ones won't mark the earlier ones in a sequence, so the earlier
4503 for (i = 0, out = loadmodel->brushq1.texinfo;i < count;i++, out++)
4506 texture_t *t = loadmodel->data_textures + out->textureindex;
4507 t->currentframe = t; // fix the reallocated pointer
4509 // if this is not animated, skip it
4510 // if this is already processed, skip it (part of an existing sequence)
4511 if (out->q2nexttexinfo == 0 || t->animated)
4514 // store the array of frames to use
4515 t->animated = 2; // q2bsp animation
4516 t->anim_total[0] = 0;
4517 t->anim_total[1] = 0;
4518 // gather up to 10 frames (we don't support more)
4519 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)
4521 // detect looping and stop there
4522 if (t->anim_total[0] && loadmodel->brushq1.texinfo[j].textureindex == out->textureindex)
4524 t->anim_frames[0][t->anim_total[0]++] = &loadmodel->data_textures[loadmodel->brushq1.texinfo[j].textureindex];
4526 // we could look for the +a sequence here if this is the +0 sequence,
4527 // but it seems that quake2 did not implement that (even though the
4528 // files exist in the baseq2 content)
4530 // write the frame sequence to all the textures involved (just like
4531 // in the q1bsp loader)
4533 // note that this can overwrite the rest of the sequence - so if the
4534 // start of a sequence is found later than the other parts of the
4535 // sequence, it will go back and rewrite them correctly.
4536 for (k = 0;k < t->anim_total[0];k++)
4538 texture_t *txk = t->anim_frames[0][k];
4539 txk->animated = t->animated;
4540 txk->anim_total[0] = t->anim_total[0];
4541 for (l = 0;l < t->anim_total[0];l++)
4542 txk->anim_frames[0][l] = t->anim_frames[0][l];
4547 static void Mod_Q2BSP_LoadLighting(sizebuf_t *sb)
4549 // LadyHavoc: this fits exactly the same format that we use in .lit files
4550 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize);
4551 MSG_ReadBytes(sb, sb->cursize, loadmodel->brushq1.lightdata);
4554 static void Mod_Q2BSP_LoadLeafs(sizebuf_t *sb)
4557 int i, j, count, firstmarksurface, nummarksurfaces, firstmarkbrush, nummarkbrushes;
4558 int structsize = 28;
4560 if (sb->cursize % structsize)
4561 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
4562 count = sb->cursize / structsize;
4563 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
4565 loadmodel->brush.data_leafs = out;
4566 loadmodel->brush.num_leafs = count;
4568 // FIXME: this function could really benefit from some error checking
4569 for ( i=0 ; i<count ; i++, out++)
4571 out->contents = MSG_ReadLittleLong(sb);
4572 out->clusterindex = MSG_ReadLittleShort(sb);
4573 out->areaindex = MSG_ReadLittleShort(sb);
4574 out->mins[0] = MSG_ReadLittleShort(sb);
4575 out->mins[1] = MSG_ReadLittleShort(sb);
4576 out->mins[2] = MSG_ReadLittleShort(sb);
4577 out->maxs[0] = MSG_ReadLittleShort(sb);
4578 out->maxs[1] = MSG_ReadLittleShort(sb);
4579 out->maxs[2] = MSG_ReadLittleShort(sb);
4581 firstmarksurface = (unsigned short)MSG_ReadLittleShort(sb);
4582 nummarksurfaces = (unsigned short)MSG_ReadLittleShort(sb);
4583 firstmarkbrush = (unsigned short)MSG_ReadLittleShort(sb);
4584 nummarkbrushes = (unsigned short)MSG_ReadLittleShort(sb);
4586 for (j = 0;j < 4;j++)
4587 out->ambient_sound_level[j] = 0;
4589 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
4591 Con_Print("Mod_Q2BSP_LoadLeafs: invalid clusterindex\n");
4592 out->clusterindex = -1;
4595 if (firstmarksurface >= 0 && firstmarksurface + nummarksurfaces <= loadmodel->brush.num_leafsurfaces)
4597 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + firstmarksurface;
4598 out->numleafsurfaces = nummarksurfaces;
4602 Con_Printf("Mod_Q2BSP_LoadLeafs: invalid leafsurface range %i:%i outside range %i:%i\n", firstmarksurface, firstmarksurface+nummarksurfaces, 0, loadmodel->brush.num_leafsurfaces);
4603 out->firstleafsurface = NULL;
4604 out->numleafsurfaces = 0;
4607 if (firstmarkbrush >= 0 && firstmarkbrush + nummarkbrushes <= loadmodel->brush.num_leafbrushes)
4609 out->firstleafbrush = loadmodel->brush.data_leafbrushes + firstmarkbrush;
4610 out->numleafbrushes = nummarkbrushes;
4614 Con_Printf("Mod_Q2BSP_LoadLeafs: invalid leafbrush range %i:%i outside range %i:%i\n", firstmarkbrush, firstmarkbrush+nummarkbrushes, 0, loadmodel->brush.num_leafbrushes);
4615 out->firstleafbrush = NULL;
4616 out->numleafbrushes = 0;
4621 static void Mod_Q2BSP_LoadLeafBrushes(sizebuf_t *sb)
4626 if (sb->cursize % structsize)
4627 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
4628 loadmodel->brush.num_leafbrushes = sb->cursize / structsize;
4629 loadmodel->brush.data_leafbrushes = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafbrushes * sizeof(int));
4631 for (i = 0;i < loadmodel->brush.num_leafbrushes;i++)
4633 j = (unsigned short) MSG_ReadLittleShort(sb);
4634 if (j >= loadmodel->brush.num_brushes)
4635 Host_Error("Mod_Q1BSP_LoadLeafBrushes: bad brush number");
4636 loadmodel->brush.data_leafbrushes[i] = j;
4640 static void Mod_Q2BSP_LoadBrushSides(sizebuf_t *sb)
4642 q3mbrushside_t *out;
4646 if (sb->cursize % structsize)
4647 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4648 count = sb->cursize / structsize;
4649 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4651 loadmodel->brush.data_brushsides = out;
4652 loadmodel->brush.num_brushsides = count;
4654 for (i = 0;i < count;i++, out++)
4656 n = (unsigned short)MSG_ReadLittleShort(sb);
4657 if (n < 0 || n >= loadmodel->brush.num_planes)
4658 Host_Error("Mod_Q2BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
4659 out->plane = loadmodel->brush.data_planes + n;
4660 n = MSG_ReadLittleShort(sb);
4663 if (n >= loadmodel->brushq1.numtexinfo)
4664 Host_Error("Mod_Q2BSP_LoadBrushSides: invalid texinfo index %i (%i texinfos)", n, loadmodel->brushq1.numtexinfo);
4665 out->texture = loadmodel->data_textures + loadmodel->brushq1.texinfo[n].textureindex;
4669 //Con_Printf("Mod_Q2BSP_LoadBrushSides: brushside %i has texinfo index %i < 0, changing to generic texture!\n", i, n);
4670 out->texture = &mod_q1bsp_texture_solid;
4675 static void Mod_Q2BSP_LoadBrushes(sizebuf_t *sb)
4678 int i, j, firstside, numsides, contents, count, maxplanes, q3surfaceflags, supercontents;
4679 colplanef_t *planes;
4680 int structsize = 12;
4681 qbool brushmissingtextures;
4682 int numbrushesmissingtextures = 0;
4683 int numcreatedtextures = 0;
4685 if (sb->cursize % structsize)
4686 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4687 count = sb->cursize / structsize;
4688 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4690 loadmodel->brush.data_brushes = out;
4691 loadmodel->brush.num_brushes = count;
4696 for (i = 0; i < count; i++, out++)
4698 firstside = MSG_ReadLittleLong(sb);
4699 numsides = MSG_ReadLittleLong(sb);
4700 contents = MSG_ReadLittleLong(sb);
4701 if (firstside < 0 || firstside + numsides > loadmodel->brush.num_brushsides)
4702 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", firstside, firstside + numsides, loadmodel->brush.num_brushsides);
4704 out->firstbrushside = loadmodel->brush.data_brushsides + firstside;
4705 out->numbrushsides = numsides;
4706 // convert the contents to our values
4707 supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(contents);
4709 // problem: q2bsp brushes have contents but not a texture
4710 // problem: q2bsp brushsides *may* have a texture or may not
4711 // problem: all brushsides and brushes must have a texture for trace_hittexture functionality to work, and the collision code is engineered around this assumption
4712 // solution: nasty hacks
4713 brushmissingtextures = false;
4714 out->texture = NULL;
4715 for (j = 0; j < out->numbrushsides; j++)
4717 if (out->firstbrushside[j].texture == &mod_q1bsp_texture_solid)
4718 brushmissingtextures = true;
4721 // if we can find a matching texture on a brush side we can use it instead of creating one
4722 if (out->firstbrushside[j].texture->supercontents == supercontents)
4723 out->texture = out->firstbrushside[j].texture;
4726 if (brushmissingtextures || out->texture == NULL)
4728 numbrushesmissingtextures++;
4729 // if we didn't find any appropriate texture (matching contents), we'll have to create one
4730 // we could search earlier ones for a matching one but that can be slow
4731 if (out->texture == NULL)
4733 texture_t *validtexture;
4734 validtexture = (texture_t *)Mem_Alloc(loadmodel->mempool, sizeof(texture_t));
4735 dpsnprintf(validtexture->name, sizeof(validtexture->name), "brushcollision%i", numcreatedtextures);
4736 validtexture->surfaceflags = 0;
4737 validtexture->supercontents = supercontents;
4738 numcreatedtextures++;
4739 out->texture = validtexture;
4741 // out->texture now contains a texture with appropriate contents, copy onto any missing sides
4742 for (j = 0; j < out->numbrushsides; j++)
4743 if (out->firstbrushside[j].texture == &mod_q1bsp_texture_solid)
4744 out->firstbrushside[j].texture = out->texture;
4747 // make a colbrush from the brush
4749 // make a list of mplane_t structs to construct a colbrush from
4750 if (maxplanes < out->numbrushsides)
4752 maxplanes = out->numbrushsides;
4755 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
4757 for (j = 0;j < out->numbrushsides;j++)
4759 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4760 planes[j].dist = out->firstbrushside[j].plane->dist;
4761 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
4762 planes[j].texture = out->firstbrushside[j].texture;
4763 q3surfaceflags |= planes[j].q3surfaceflags;
4765 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents, q3surfaceflags, out->texture, true);
4767 // this whole loop can take a while (e.g. on redstarrepublic4)
4768 CL_KeepaliveMessage(false);
4772 if (numcreatedtextures)
4773 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);
4776 static void Mod_Q2BSP_LoadPOP(sizebuf_t *sb)
4778 // 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)
4779 sb->readcount = sb->cursize;
4782 static void Mod_Q2BSP_LoadAreas(sizebuf_t *sb)
4784 // we currently don't use areas, they represent closable doors as vis blockers
4785 sb->readcount = sb->cursize;
4788 static void Mod_Q2BSP_LoadAreaPortals(sizebuf_t *sb)
4790 // we currently don't use areas, they represent closable doors as vis blockers
4791 sb->readcount = sb->cursize;
4794 static void Mod_Q2BSP_FindSubmodelBrushRange_r(model_t *mod, mnode_t *node, int *first, int *last)
4800 Mod_Q2BSP_FindSubmodelBrushRange_r(mod, node->children[0], first, last);
4801 node = node->children[1];
4803 leaf = (mleaf_t*)node;
4804 for (i = 0;i < leaf->numleafbrushes;i++)
4806 int brushnum = leaf->firstleafbrush[i];
4807 if (*first > brushnum)
4809 if (*last < brushnum)
4814 static void Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
4817 sizebuf_t lumpsb[Q2HEADER_LUMPS];
4819 float dist, modelyawradius, modelradius;
4820 msurface_t *surface;
4821 int totalstylesurfaces, totalstyles, stylecounts[256], remapstyles[256];
4822 model_brush_lightstyleinfo_t styleinfo[256];
4823 unsigned char *datapointer;
4826 MSG_InitReadBuffer(&sb, (unsigned char *)buffer, (unsigned char *)bufferend - (unsigned char *)buffer);
4828 mod->type = mod_brushq2;
4830 mod->brush.ishlbsp = false;
4831 mod->brush.isbsp2rmqe = false;
4832 mod->brush.isbsp2 = false;
4833 mod->brush.isq2bsp = true; // q1bsp loaders mostly work but we need a few tweaks
4834 mod->brush.isq3bsp = false;
4835 mod->brush.skymasking = true;
4836 mod->modeldatatypestring = "Q2BSP";
4838 i = MSG_ReadLittleLong(&sb);
4839 if (i != Q2BSPMAGIC)
4840 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
4842 i = MSG_ReadLittleLong(&sb);
4843 if (i != Q2BSPVERSION)
4844 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
4847 for (i = 0; i < Q2HEADER_LUMPS; i++)
4849 int offset = MSG_ReadLittleLong(&sb);
4850 int size = MSG_ReadLittleLong(&sb);
4851 if (offset < 0 || offset + size > sb.cursize)
4852 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);
4853 MSG_InitReadBuffer(&lumpsb[i], sb.data + offset, size);
4856 mod->soundfromcenter = true;
4857 mod->TracePoint = Mod_CollisionBIH_TracePoint;
4858 mod->TraceLine = Mod_CollisionBIH_TraceLine;
4859 mod->TraceBox = Mod_CollisionBIH_TraceBox;
4860 mod->TraceBrush = Mod_CollisionBIH_TraceBrush;
4861 mod->PointSuperContents = Mod_CollisionBIH_PointSuperContents;
4862 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
4863 mod->brush.TraceLineOfSight = Mod_Q3BSP_TraceLineOfSight;
4864 mod->brush.SuperContentsFromNativeContents = Mod_Q2BSP_SuperContentsFromNativeContents;
4865 mod->brush.NativeContentsFromSuperContents = Mod_Q2BSP_NativeContentsFromSuperContents;
4866 mod->brush.GetPVS = Mod_BSP_GetPVS;
4867 mod->brush.FatPVS = Mod_BSP_FatPVS;
4868 mod->brush.BoxTouchingPVS = Mod_BSP_BoxTouchingPVS;
4869 mod->brush.BoxTouchingLeafPVS = Mod_BSP_BoxTouchingLeafPVS;
4870 mod->brush.BoxTouchingVisibleLeafs = Mod_BSP_BoxTouchingVisibleLeafs;
4871 mod->brush.FindBoxClusters = Mod_BSP_FindBoxClusters;
4872 mod->brush.LightPoint = Mod_BSP_LightPoint;
4873 mod->brush.FindNonSolidLocation = Mod_BSP_FindNonSolidLocation;
4874 mod->brush.AmbientSoundLevelsForPoint = NULL;
4875 mod->brush.RoundUpToHullSize = NULL;
4876 mod->brush.PointInLeaf = Mod_BSP_PointInLeaf;
4877 mod->Draw = R_Mod_Draw;
4878 mod->DrawDepth = R_Mod_DrawDepth;
4879 mod->DrawDebug = R_Mod_DrawDebug;
4880 mod->DrawPrepass = R_Mod_DrawPrepass;
4881 mod->GetLightInfo = R_Mod_GetLightInfo;
4882 mod->CompileShadowMap = R_Mod_CompileShadowMap;
4883 mod->DrawShadowMap = R_Mod_DrawShadowMap;
4884 mod->DrawLight = R_Mod_DrawLight;
4888 mod->brush.qw_md4sum = 0;
4889 mod->brush.qw_md4sum2 = 0;
4890 for (i = 0;i < Q2HEADER_LUMPS;i++)
4893 if (i == Q2LUMP_ENTITIES)
4895 temp = Com_BlockChecksum(lumpsb[i].data, lumpsb[i].cursize);
4896 mod->brush.qw_md4sum ^= LittleLong(temp);
4897 if (i == Q2LUMP_VISIBILITY || i == Q2LUMP_LEAFS || i == Q2LUMP_NODES)
4899 mod->brush.qw_md4sum2 ^= LittleLong(temp);
4902 // many of these functions are identical to Q1 loaders, so we use those where possible
4903 Mod_Q1BSP_LoadEntities(&lumpsb[Q2LUMP_ENTITIES]);
4904 Mod_Q1BSP_LoadVertexes(&lumpsb[Q2LUMP_VERTEXES]);
4905 Mod_Q1BSP_LoadEdges(&lumpsb[Q2LUMP_EDGES]);
4906 Mod_Q1BSP_LoadSurfedges(&lumpsb[Q2LUMP_SURFEDGES]);
4907 Mod_Q2BSP_LoadLighting(&lumpsb[Q2LUMP_LIGHTING]);
4908 Mod_Q1BSP_LoadPlanes(&lumpsb[Q2LUMP_PLANES]);
4909 Mod_Q2BSP_LoadTexinfo(&lumpsb[Q2LUMP_TEXINFO]);
4910 Mod_Q2BSP_LoadBrushSides(&lumpsb[Q2LUMP_BRUSHSIDES]);
4911 Mod_Q2BSP_LoadBrushes(&lumpsb[Q2LUMP_BRUSHES]);
4912 Mod_Q1BSP_LoadFaces(&lumpsb[Q2LUMP_FACES]);
4913 Mod_Q1BSP_LoadLeaffaces(&lumpsb[Q2LUMP_LEAFFACES]);
4914 Mod_Q2BSP_LoadLeafBrushes(&lumpsb[Q2LUMP_LEAFBRUSHES]);
4915 Mod_Q2BSP_LoadVisibility(&lumpsb[Q2LUMP_VISIBILITY]);
4916 Mod_Q2BSP_LoadPOP(&lumpsb[Q2LUMP_POP]);
4917 Mod_Q2BSP_LoadAreas(&lumpsb[Q2LUMP_AREAS]);
4918 Mod_Q2BSP_LoadAreaPortals(&lumpsb[Q2LUMP_AREAPORTALS]);
4919 Mod_Q2BSP_LoadLeafs(&lumpsb[Q2LUMP_LEAFS]);
4920 Mod_Q2BSP_LoadNodes(&lumpsb[Q2LUMP_NODES]);
4921 Mod_BSP_LoadSubmodels(&lumpsb[Q2LUMP_MODELS], NULL);
4923 for (i = 0; i < Q2HEADER_LUMPS; i++)
4924 if (lumpsb[i].readcount != lumpsb[i].cursize)
4925 Host_Error("Lump %i incorrectly loaded (readcount %i, size %i)\n", i, lumpsb[i].readcount, lumpsb[i].cursize);
4927 // we don't actually set MATERIALFLAG_WATERALPHA on anything, so this
4928 // doesn't enable the cvar, just indicates that transparent water is OK
4929 loadmodel->brush.supportwateralpha = true;
4931 // we don't need the compressed pvs data anymore
4932 if (mod->brushq1.data_compressedpvs)
4933 Mem_Free(mod->brushq1.data_compressedpvs);
4934 mod->brushq1.data_compressedpvs = NULL;
4935 mod->brushq1.num_compressedpvs = 0;
4937 // the MakePortals code works fine on the q2bsp data as well
4938 if (mod_bsp_portalize.integer)
4939 Mod_BSP_MakePortals();
4941 mod->numframes = 0; // q2bsp animations are kind of special, frame is unbounded...
4944 if (loadmodel->brush.numsubmodels)
4945 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
4947 totalstylesurfaces = 0;
4949 for (i = 0;i < mod->brush.numsubmodels;i++)
4951 memset(stylecounts, 0, sizeof(stylecounts));
4952 for (k = 0;k < mod->brushq1.submodels[i].numfaces;k++)
4954 surface = mod->data_surfaces + mod->brushq1.submodels[i].firstface + k;
4955 for (j = 0;j < MAXLIGHTMAPS;j++)
4956 stylecounts[surface->lightmapinfo->styles[j]]++;
4958 for (k = 0;k < 255;k++)
4962 totalstylesurfaces += stylecounts[k];
4965 datapointer = (unsigned char *)Mem_Alloc(mod->mempool, mod->num_surfaces * sizeof(int) + totalstyles * sizeof(model_brush_lightstyleinfo_t) + totalstylesurfaces * sizeof(int *));
4966 mod->modelsurfaces_sorted = (int*)datapointer; datapointer += mod->num_surfaces * sizeof(int);
4967 // set up the world model, then on each submodel copy from the world model
4968 // and set up the submodel with the respective model info.
4970 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
4972 mnode_t *rootnode = NULL;
4973 int firstbrush = loadmodel->brush.num_brushes, lastbrush = 0;
4977 // duplicate the basic information
4978 dpsnprintf(name, sizeof(name), "*%i", i);
4979 mod = Mod_FindName(name, loadmodel->name);
4980 // copy the base model to this one
4982 // rename the clone back to its proper name
4983 strlcpy(mod->name, name, sizeof(mod->name));
4984 mod->brush.parentmodel = loadmodel;
4985 // textures and memory belong to the main model
4986 mod->texturepool = NULL;
4987 mod->mempool = NULL;
4988 mod->brush.GetPVS = NULL;
4989 mod->brush.FatPVS = NULL;
4990 mod->brush.BoxTouchingPVS = NULL;
4991 mod->brush.BoxTouchingLeafPVS = NULL;
4992 mod->brush.BoxTouchingVisibleLeafs = NULL;
4993 mod->brush.FindBoxClusters = NULL;
4994 mod->brush.LightPoint = NULL;
4995 mod->brush.AmbientSoundLevelsForPoint = NULL;
4997 mod->brush.submodel = i;
4998 if (loadmodel->brush.submodels)
4999 loadmodel->brush.submodels[i] = mod;
5001 bm = &mod->brushq1.submodels[i];
5003 // we store the headnode (there's only one in Q2BSP) as if it were the first hull
5004 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
5006 mod->submodelsurfaces_start = bm->firstface;
5007 mod->submodelsurfaces_end = bm->firstface + bm->numfaces;
5009 // set node/leaf parents for this submodel
5010 // note: if the root of this submodel is a leaf (headnode[0] < 0) then there is nothing to do...
5011 // (this happens in base3.bsp)
5012 if (bm->headnode[0] >= 0)
5013 rootnode = mod->brush.data_nodes + bm->headnode[0];
5015 rootnode = (mnode_t*)(mod->brush.data_leafs + -1 - bm->headnode[0]);
5016 Mod_BSP_LoadNodes_RecursiveSetParent(rootnode, NULL);
5018 // make the model surface list (used by shadowing/lighting)
5019 Mod_Q2BSP_FindSubmodelBrushRange_r(mod, rootnode, &firstbrush, &lastbrush);
5020 if (firstbrush <= lastbrush)
5022 mod->firstmodelbrush = firstbrush;
5023 mod->nummodelbrushes = lastbrush + 1 - firstbrush;
5027 mod->firstmodelbrush = 0;
5028 mod->nummodelbrushes = 0;
5031 VectorCopy(bm->mins, mod->normalmins);
5032 VectorCopy(bm->maxs, mod->normalmaxs);
5033 dist = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
5034 modelyawradius = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
5035 modelyawradius = dist*dist+modelyawradius*modelyawradius;
5036 modelradius = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
5037 modelradius = modelyawradius + modelradius * modelradius;
5038 modelyawradius = sqrt(modelyawradius);
5039 modelradius = sqrt(modelradius);
5040 mod->yawmins[0] = mod->yawmins[1] = -modelyawradius;
5041 mod->yawmins[2] = mod->normalmins[2];
5042 mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius;
5043 mod->yawmaxs[2] = mod->normalmaxs[2];
5044 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
5045 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
5046 mod->radius = modelradius;
5047 mod->radius2 = modelradius * modelradius;
5049 Mod_SetDrawSkyAndWater(mod);
5051 // build lightstyle lists for quick marking of dirty lightmaps when lightstyles flicker
5052 if (mod->submodelsurfaces_start < mod->submodelsurfaces_end)
5054 // build lightstyle update chains
5055 // (used to rapidly mark lightmapupdateflags on many surfaces
5056 // when d_lightstylevalue changes)
5057 memset(stylecounts, 0, sizeof(stylecounts));
5058 for (k = mod->submodelsurfaces_start;k < mod->submodelsurfaces_end;k++)
5059 for (j = 0;j < MAXLIGHTMAPS;j++)
5060 stylecounts[mod->data_surfaces[k].lightmapinfo->styles[j]]++;
5061 mod->brushq1.num_lightstyles = 0;
5062 for (k = 0;k < 255;k++)
5066 styleinfo[mod->brushq1.num_lightstyles].style = k;
5067 styleinfo[mod->brushq1.num_lightstyles].value = 0;
5068 styleinfo[mod->brushq1.num_lightstyles].numsurfaces = 0;
5069 styleinfo[mod->brushq1.num_lightstyles].surfacelist = (int *)datapointer;datapointer += stylecounts[k] * sizeof(int);
5070 remapstyles[k] = mod->brushq1.num_lightstyles;
5071 mod->brushq1.num_lightstyles++;
5074 for (k = mod->submodelsurfaces_start;k < mod->submodelsurfaces_end;k++)
5076 surface = mod->data_surfaces + k;
5077 for (j = 0;j < MAXLIGHTMAPS;j++)
5079 if (surface->lightmapinfo->styles[j] != 255)
5081 int r = remapstyles[surface->lightmapinfo->styles[j]];
5082 styleinfo[r].surfacelist[styleinfo[r].numsurfaces++] = k;
5086 mod->brushq1.data_lightstyleinfo = (model_brush_lightstyleinfo_t *)datapointer;datapointer += mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t);
5087 memcpy(mod->brushq1.data_lightstyleinfo, styleinfo, mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t));
5091 Con_Printf(CON_WARN "warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
5093 //mod->brushq1.num_visleafs = bm->visleafs;
5095 // build a Bounding Interval Hierarchy for culling triangles in light rendering
5096 Mod_MakeCollisionBIH(mod, false, &mod->collision_bih);
5098 // build a Bounding Interval Hierarchy for culling brushes in collision detection
5099 Mod_MakeCollisionBIH(mod, true, &mod->render_bih);
5101 // generate VBOs and other shared data before cloning submodels
5107 // make the model surface list (used by shadowing/lighting)
5108 Mod_MakeSortedSurfaces(loadmodel);
5110 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);
5113 static int Mod_Q3BSP_SuperContentsFromNativeContents(int nativecontents);
5114 static int Mod_Q3BSP_NativeContentsFromSuperContents(int supercontents);
5116 static void Mod_Q3BSP_LoadEntities(lump_t *l)
5119 char key[128], value[MAX_INPUTLINE];
5121 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
5122 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
5123 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
5126 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen + 1);
5127 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
5128 loadmodel->brush.entities[l->filelen] = 0;
5129 data = loadmodel->brush.entities;
5130 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
5131 // VorteX: q3map2 FS-R generates tangentspace deluxemaps for q3bsp and sets 'deluxeMaps' key
5132 loadmodel->brushq3.deluxemapping = false;
5133 if (data && COM_ParseToken_Simple(&data, false, false, true) && com_token[0] == '{')
5137 if (!COM_ParseToken_Simple(&data, false, false, true))
5139 if (com_token[0] == '}')
5140 break; // end of worldspawn
5141 if (com_token[0] == '_')
5142 strlcpy(key, com_token + 1, sizeof(key));
5144 strlcpy(key, com_token, sizeof(key));
5145 while (key[strlen(key)-1] == ' ') // remove trailing spaces
5146 key[strlen(key)-1] = 0;
5147 if (!COM_ParseToken_Simple(&data, false, false, true))
5149 strlcpy(value, com_token, sizeof(value));
5150 if (!strcasecmp("gridsize", key)) // this one is case insensitive to 100% match q3map2
5152 #if _MSC_VER >= 1400
5153 #define sscanf sscanf_s
5156 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
5157 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
5159 VectorSet(v, 64, 64, 128);
5160 if(sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) != 3)
5161 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]);
5162 if (v[0] != 0 && v[1] != 0 && v[2] != 0)
5163 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
5166 else if (!strcmp("deluxeMaps", key))
5168 if (!strcmp(com_token, "1"))
5170 loadmodel->brushq3.deluxemapping = true;
5171 loadmodel->brushq3.deluxemapping_modelspace = true;
5173 else if (!strcmp(com_token, "2"))
5175 loadmodel->brushq3.deluxemapping = true;
5176 loadmodel->brushq3.deluxemapping_modelspace = false;
5183 static void Mod_Q3BSP_LoadTextures(lump_t *l)
5189 in = (q3dtexture_t *)(mod_base + l->fileofs);
5190 if (l->filelen % sizeof(*in))
5191 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
5192 count = l->filelen / sizeof(*in);
5193 out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5195 loadmodel->data_textures = out;
5196 loadmodel->num_textures = count;
5197 loadmodel->num_texturesperskin = loadmodel->num_textures;
5199 for (i = 0;i < count;i++)
5201 out[i].surfaceflags = LittleLong(in[i].surfaceflags);
5202 out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(LittleLong(in[i].contents));
5203 Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, out + i, in[i].name, true, true, TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL);
5204 // restore the surfaceflags and supercontents
5205 out[i].surfaceflags = LittleLong(in[i].surfaceflags);
5206 out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(LittleLong(in[i].contents));
5210 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
5216 in = (q3dplane_t *)(mod_base + l->fileofs);
5217 if (l->filelen % sizeof(*in))
5218 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
5219 count = l->filelen / sizeof(*in);
5220 out = (mplane_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5222 loadmodel->brush.data_planes = out;
5223 loadmodel->brush.num_planes = count;
5225 for (i = 0;i < count;i++, in++, out++)
5227 out->normal[0] = LittleFloat(in->normal[0]);
5228 out->normal[1] = LittleFloat(in->normal[1]);
5229 out->normal[2] = LittleFloat(in->normal[2]);
5230 out->dist = LittleFloat(in->dist);
5235 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
5238 q3mbrushside_t *out;
5241 in = (q3dbrushside_t *)(mod_base + l->fileofs);
5242 if (l->filelen % sizeof(*in))
5243 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
5244 count = l->filelen / sizeof(*in);
5245 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5247 loadmodel->brush.data_brushsides = out;
5248 loadmodel->brush.num_brushsides = count;
5250 for (i = 0;i < count;i++, in++, out++)
5252 n = LittleLong(in->planeindex);
5253 if (n < 0 || n >= loadmodel->brush.num_planes)
5254 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5255 out->plane = loadmodel->brush.data_planes + n;
5256 n = LittleLong(in->textureindex);
5257 if (n < 0 || n >= loadmodel->num_textures)
5258 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
5259 out->texture = loadmodel->data_textures + n;
5263 static void Mod_Q3BSP_LoadBrushSides_IG(lump_t *l)
5265 q3dbrushside_ig_t *in;
5266 q3mbrushside_t *out;
5269 in = (q3dbrushside_ig_t *)(mod_base + l->fileofs);
5270 if (l->filelen % sizeof(*in))
5271 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
5272 count = l->filelen / sizeof(*in);
5273 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5275 loadmodel->brush.data_brushsides = out;
5276 loadmodel->brush.num_brushsides = count;
5278 for (i = 0;i < count;i++, in++, out++)
5280 n = LittleLong(in->planeindex);
5281 if (n < 0 || n >= loadmodel->brush.num_planes)
5282 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5283 out->plane = loadmodel->brush.data_planes + n;
5284 n = LittleLong(in->textureindex);
5285 if (n < 0 || n >= loadmodel->num_textures)
5286 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
5287 out->texture = loadmodel->data_textures + n;
5291 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
5295 int i, j, n, c, count, maxplanes, q3surfaceflags;
5296 colplanef_t *planes;
5298 in = (q3dbrush_t *)(mod_base + l->fileofs);
5299 if (l->filelen % sizeof(*in))
5300 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
5301 count = l->filelen / sizeof(*in);
5302 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5304 loadmodel->brush.data_brushes = out;
5305 loadmodel->brush.num_brushes = count;
5310 for (i = 0;i < count;i++, in++, out++)
5312 n = LittleLong(in->firstbrushside);
5313 c = LittleLong(in->numbrushsides);
5314 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
5315 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", n, n + c, loadmodel->brush.num_brushsides);
5316 out->firstbrushside = loadmodel->brush.data_brushsides + n;
5317 out->numbrushsides = c;
5318 n = LittleLong(in->textureindex);
5319 if (n < 0 || n >= loadmodel->num_textures)
5320 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
5321 out->texture = loadmodel->data_textures + n;
5323 // make a list of mplane_t structs to construct a colbrush from
5324 if (maxplanes < out->numbrushsides)
5326 maxplanes = out->numbrushsides;
5329 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
5332 for (j = 0;j < out->numbrushsides;j++)
5334 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
5335 planes[j].dist = out->firstbrushside[j].plane->dist;
5336 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
5337 planes[j].texture = out->firstbrushside[j].texture;
5338 q3surfaceflags |= planes[j].q3surfaceflags;
5340 // make the colbrush from the planes
5341 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents, q3surfaceflags, out->texture, true);
5343 // this whole loop can take a while (e.g. on redstarrepublic4)
5344 CL_KeepaliveMessage(false);
5350 static void Mod_Q3BSP_LoadEffects(lump_t *l)
5356 in = (q3deffect_t *)(mod_base + l->fileofs);
5357 if (l->filelen % sizeof(*in))
5358 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
5359 count = l->filelen / sizeof(*in);
5360 out = (q3deffect_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5362 loadmodel->brushq3.data_effects = out;
5363 loadmodel->brushq3.num_effects = count;
5365 for (i = 0;i < count;i++, in++, out++)
5367 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
5368 n = LittleLong(in->brushindex);
5369 if (n >= loadmodel->brush.num_brushes)
5371 Con_Printf("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes), setting to -1\n", n, loadmodel->brush.num_brushes);
5374 out->brushindex = n;
5375 out->unknown = LittleLong(in->unknown);
5379 static void Mod_Q3BSP_LoadVertices(lump_t *l)
5384 in = (q3dvertex_t *)(mod_base + l->fileofs);
5385 if (l->filelen % sizeof(*in))
5386 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
5387 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
5388 loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 3 + 2 + 2 + 4)));
5389 loadmodel->brushq3.data_normal3f = loadmodel->brushq3.data_vertex3f + count * 3;
5390 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_normal3f + count * 3;
5391 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
5392 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
5394 for (i = 0;i < count;i++, in++)
5396 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
5397 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
5398 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
5399 loadmodel->brushq3.data_normal3f[i * 3 + 0] = LittleFloat(in->normal3f[0]);
5400 loadmodel->brushq3.data_normal3f[i * 3 + 1] = LittleFloat(in->normal3f[1]);
5401 loadmodel->brushq3.data_normal3f[i * 3 + 2] = LittleFloat(in->normal3f[2]);
5402 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
5403 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
5404 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
5405 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
5406 // svector/tvector are calculated later in face loading
5407 if(mod_q3bsp_sRGBlightmaps.integer)
5409 // if lightmaps are sRGB, vertex colors are sRGB too, so we need to linearize them
5410 // note: when this is in use, lightmap color 128 is no longer neutral, but "sRGB half power" is
5411 // working like this may be odd, but matches q3map2 -gamma 2.2
5412 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5414 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
5415 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
5416 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
5417 // we fix the brightness consistently via lightmapscale
5421 loadmodel->brushq3.data_color4f[i * 4 + 0] = Image_LinearFloatFromsRGB(in->color4ub[0]);
5422 loadmodel->brushq3.data_color4f[i * 4 + 1] = Image_LinearFloatFromsRGB(in->color4ub[1]);
5423 loadmodel->brushq3.data_color4f[i * 4 + 2] = Image_LinearFloatFromsRGB(in->color4ub[2]);
5428 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5430 loadmodel->brushq3.data_color4f[i * 4 + 0] = Image_sRGBFloatFromLinear_Lightmap(in->color4ub[0]);
5431 loadmodel->brushq3.data_color4f[i * 4 + 1] = Image_sRGBFloatFromLinear_Lightmap(in->color4ub[1]);
5432 loadmodel->brushq3.data_color4f[i * 4 + 2] = Image_sRGBFloatFromLinear_Lightmap(in->color4ub[2]);
5436 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
5437 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
5438 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
5441 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
5442 if(in->color4ub[0] != 255 || in->color4ub[1] != 255 || in->color4ub[2] != 255)
5443 loadmodel->lit = true;
5447 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
5453 in = (int *)(mod_base + l->fileofs);
5454 if (l->filelen % sizeof(int[3]))
5455 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
5456 count = l->filelen / sizeof(*in);
5458 if(!loadmodel->brushq3.num_vertices)
5461 Con_Printf("Mod_Q3BSP_LoadTriangles: %s has triangles but no vertexes, broken compiler, ignoring problem\n", loadmodel->name);
5462 loadmodel->brushq3.num_triangles = 0;
5466 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5467 loadmodel->brushq3.num_triangles = count / 3;
5468 loadmodel->brushq3.data_element3i = out;
5470 for (i = 0;i < count;i++, in++, out++)
5472 *out = LittleLong(*in);
5473 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
5475 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
5481 static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
5483 q3dlightmap_t *input_pointer;
5501 int mergedrowsxcolumns;
5506 unsigned char *mergedpixels;
5507 unsigned char *mergeddeluxepixels;
5508 unsigned char *mergebuf;
5509 char mapname[MAX_QPATH];
5511 unsigned char *inpixels[10000]; // max count q3map2 can output (it uses 4 digits)
5514 // defaults for q3bsp
5521 loadmodel->brushq3.lightmapsize = 128;
5523 if (cls.state == ca_dedicated)
5526 if(mod_q3bsp_nolightmaps.integer)
5532 // prefer internal LMs for compatibility (a BSP contains no info on whether external LMs exist)
5533 if (developer_loading.integer)
5534 Con_Printf("Using internal lightmaps\n");
5535 input_pointer = (q3dlightmap_t *)(mod_base + l->fileofs);
5536 if (l->filelen % sizeof(*input_pointer))
5537 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
5538 count = l->filelen / sizeof(*input_pointer);
5539 for(i = 0; i < count; ++i)
5540 inpixels[i] = input_pointer[i].rgb;
5544 // no internal lightmaps
5545 // try external lightmaps
5546 FS_StripExtension(loadmodel->name, mapname, sizeof(mapname));
5547 inpixels[0] = loadimagepixelsbgra(va(vabuf, sizeof(vabuf), "%s/lm_%04d", mapname, 0), false, false, false, NULL);
5551 Con_Printf("Using external lightmaps\n");
5553 // using EXTERNAL lightmaps instead
5554 if(image_width != (int) CeilPowerOf2(image_width) || image_width != image_height)
5555 Con_Printf("Mod_Q3BSP_LoadLightmaps: irregularly sized external lightmap in %s",loadmodel->name);
5564 for(count = 1; ; ++count)
5566 inpixels[count] = loadimagepixelsbgra(va(vabuf, sizeof(vabuf), "%s/lm_%04d", mapname, count), false, false, false, NULL);
5567 if(!inpixels[count])
5568 break; // we got all of them
5569 if(image_width != size || image_height != size)
5571 Mem_Free(inpixels[count]);
5572 inpixels[count] = NULL;
5573 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);
5579 loadmodel->brushq3.lightmapsize = size;
5580 loadmodel->brushq3.num_originallightmaps = count;
5582 // now check the surfaces to see if any of them index an odd numbered
5583 // lightmap, if so this is not a deluxemapped bsp file
5585 // also check what lightmaps are actually used, because q3map2 sometimes
5586 // (always?) makes an unused one at the end, which
5587 // q3map2 sometimes (or always?) makes a second blank lightmap for no
5588 // reason when only one lightmap is used, which can throw off the
5589 // deluxemapping detection method, so check 2-lightmap bsp's specifically
5590 // to see if the second lightmap is blank, if so it is not deluxemapped.
5591 // VorteX: autodetect only if previous attempt to find "deluxeMaps" key
5592 // in Mod_Q3BSP_LoadEntities was failed
5593 if (!loadmodel->brushq3.deluxemapping)
5595 loadmodel->brushq3.deluxemapping = !(count & 1);
5596 loadmodel->brushq3.deluxemapping_modelspace = true;
5598 if (loadmodel->brushq3.deluxemapping)
5600 int facecount = faceslump->filelen / sizeof(q3dface_t);
5601 q3dface_t *faces = (q3dface_t *)(mod_base + faceslump->fileofs);
5602 for (i = 0;i < facecount;i++)
5604 j = LittleLong(faces[i].lightmapindex);
5607 endlightmap = max(endlightmap, j + 1);
5608 if ((j & 1) || j + 1 >= count)
5610 loadmodel->brushq3.deluxemapping = false;
5617 // q3map2 sometimes (or always?) makes a second blank lightmap for no
5618 // reason when only one lightmap is used, which can throw off the
5619 // deluxemapping detection method, so check 2-lightmap bsp's specifically
5620 // to see if the second lightmap is blank, if so it is not deluxemapped.
5622 // further research has shown q3map2 sometimes creates a deluxemap and two
5623 // blank lightmaps, which must be handled properly as well
5624 if (endlightmap == 1 && count > 1)
5627 for (i = 0;i < size*size;i++)
5629 if (c[bytesperpixel*i + rgbmap[0]])
5631 if (c[bytesperpixel*i + rgbmap[1]])
5633 if (c[bytesperpixel*i + rgbmap[2]])
5638 // all pixels in the unused lightmap were black...
5639 loadmodel->brushq3.deluxemapping = false;
5644 Con_Printf("%s is %sdeluxemapped\n", loadmodel->name, loadmodel->brushq3.deluxemapping ? "" : "not ");
5646 // figure out what the most reasonable merge power is within limits
5648 // find the appropriate NxN dimensions to merge to, to avoid wasted space
5649 realcount = count >> (int)loadmodel->brushq3.deluxemapping;
5651 // figure out how big the merged texture has to be
5652 mergegoal = 128<<bound(0, mod_q3bsp_lightmapmergepower.integer, 6);
5653 mergegoal = bound(size, mergegoal, (int)vid.maxtexturesize_2d);
5654 while (mergegoal > size && mergegoal * mergegoal / 4 >= size * size * realcount)
5656 mergedwidth = mergegoal;
5657 mergedheight = mergegoal;
5658 // choose non-square size (2x1 aspect) if only half the space is used;
5659 // this really only happens when the entire set fits in one texture, if
5660 // there are multiple textures, we don't worry about shrinking the last
5661 // one to fit, because the driver prefers the same texture size on
5662 // consecutive draw calls...
5663 if (mergedwidth * mergedheight / 2 >= size*size*realcount)
5666 loadmodel->brushq3.num_lightmapmergedwidthpower = 0;
5667 loadmodel->brushq3.num_lightmapmergedheightpower = 0;
5668 while (mergedwidth > size<<loadmodel->brushq3.num_lightmapmergedwidthpower)
5669 loadmodel->brushq3.num_lightmapmergedwidthpower++;
5670 while (mergedheight > size<<loadmodel->brushq3.num_lightmapmergedheightpower)
5671 loadmodel->brushq3.num_lightmapmergedheightpower++;
5672 loadmodel->brushq3.num_lightmapmergedwidthheightdeluxepower = loadmodel->brushq3.num_lightmapmergedwidthpower + loadmodel->brushq3.num_lightmapmergedheightpower + (loadmodel->brushq3.deluxemapping ? 1 : 0);
5674 powerx = loadmodel->brushq3.num_lightmapmergedwidthpower;
5675 powery = loadmodel->brushq3.num_lightmapmergedheightpower;
5676 powerxy = powerx+powery;
5677 powerdxy = loadmodel->brushq3.deluxemapping + powerxy;
5679 mergedcolumns = 1 << powerx;
5680 mergedrows = 1 << powery;
5681 mergedrowsxcolumns = 1 << powerxy;
5683 loadmodel->brushq3.num_mergedlightmaps = (realcount + (1 << powerxy) - 1) >> powerxy;
5684 loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
5685 if (loadmodel->brushq3.deluxemapping)
5686 loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
5688 mergedpixels = (unsigned char *) Mem_Alloc(tempmempool, mergedwidth * mergedheight * 4);
5689 mergeddeluxepixels = loadmodel->brushq3.deluxemapping ? (unsigned char *) Mem_Alloc(tempmempool, mergedwidth * mergedheight * 4) : NULL;
5690 for (i = 0;i < count;i++)
5692 // figure out which merged lightmap texture this fits into
5693 realindex = i >> (int)loadmodel->brushq3.deluxemapping;
5694 lightmapindex = i >> powerdxy;
5696 // choose the destination address
5697 mergebuf = (loadmodel->brushq3.deluxemapping && (i & 1)) ? mergeddeluxepixels : mergedpixels;
5698 mergebuf += 4 * (realindex & (mergedcolumns-1))*size + 4 * ((realindex >> powerx) & (mergedrows-1))*mergedwidth*size;
5699 if ((i & 1) == 0 || !loadmodel->brushq3.deluxemapping)
5700 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);
5702 // convert pixels from RGB or BGRA while copying them into the destination rectangle
5703 for (j = 0;j < size;j++)
5704 for (k = 0;k < size;k++)
5706 mergebuf[(j*mergedwidth+k)*4+0] = inpixels[i][(j*size+k)*bytesperpixel+rgbmap[0]];
5707 mergebuf[(j*mergedwidth+k)*4+1] = inpixels[i][(j*size+k)*bytesperpixel+rgbmap[1]];
5708 mergebuf[(j*mergedwidth+k)*4+2] = inpixels[i][(j*size+k)*bytesperpixel+rgbmap[2]];
5709 mergebuf[(j*mergedwidth+k)*4+3] = 255;
5712 // upload texture if this was the last tile being written to the texture
5713 if (((realindex + 1) & (mergedrowsxcolumns - 1)) == 0 || (realindex + 1) == realcount)
5715 if (loadmodel->brushq3.deluxemapping && (i & 1))
5716 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);
5719 if(mod_q3bsp_sRGBlightmaps.integer)
5722 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5724 t = TEXTYPE_BGRA; // in stupid fallback mode, we upload lightmaps in sRGB form and just fix their brightness
5725 // we fix the brightness consistently via lightmapscale
5728 t = TEXTYPE_SRGB_BGRA; // normally, we upload lightmaps in sRGB form (possibly downconverted to linear)
5729 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);
5733 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5734 Image_MakesRGBColorsFromLinear_Lightmap(mergedpixels, mergedpixels, mergedwidth * mergedheight);
5735 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);
5741 if (mergeddeluxepixels)
5742 Mem_Free(mergeddeluxepixels);
5743 Mem_Free(mergedpixels);
5746 for(i = 0; i < count; ++i)
5747 Mem_Free(inpixels[i]);
5751 typedef struct patchtess_s
5755 // Auxiliary data used only by patch loading code in Mod_Q3BSP_LoadFaces
5758 float *originalvertex3f;
5761 #define PATCHTESS_SAME_LODGROUP(a,b) \
5763 (a).lodgroup[0] == (b).lodgroup[0] && \
5764 (a).lodgroup[1] == (b).lodgroup[1] && \
5765 (a).lodgroup[2] == (b).lodgroup[2] && \
5766 (a).lodgroup[3] == (b).lodgroup[3] && \
5767 (a).lodgroup[4] == (b).lodgroup[4] && \
5768 (a).lodgroup[5] == (b).lodgroup[5] \
5771 static void Mod_Q3BSP_LoadFaces(lump_t *l)
5773 q3dface_t *in, *oldin;
5774 msurface_t *out, *oldout;
5775 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;
5776 float lightmaptcbase[2], lightmaptcscale[2];
5777 //int *originalelement3i;
5778 float *originalvertex3f;
5779 //float *originalsvector3f;
5780 //float *originaltvector3f;
5781 float *originalnormal3f;
5782 float *originalcolor4f;
5783 float *originaltexcoordtexture2f;
5784 float *originaltexcoordlightmap2f;
5785 float *surfacecollisionvertex3f;
5786 int *surfacecollisionelement3i;
5788 patchtess_t *patchtess = NULL;
5789 int patchtesscount = 0;
5792 in = (q3dface_t *)(mod_base + l->fileofs);
5793 if (l->filelen % sizeof(*in))
5794 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
5795 count = l->filelen / sizeof(*in);
5796 out = (msurface_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5798 loadmodel->data_surfaces = out;
5799 loadmodel->num_surfaces = count;
5802 patchtess = (patchtess_t*) Mem_Alloc(tempmempool, count * sizeof(*patchtess));
5810 for (;i < count;i++, in++, out++)
5812 // check face type first
5813 type = LittleLong(in->type);
5814 if (type != Q3FACETYPE_FLAT
5815 && type != Q3FACETYPE_PATCH
5816 && type != Q3FACETYPE_MESH
5817 && type != Q3FACETYPE_FLARE)
5819 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
5823 n = LittleLong(in->textureindex);
5824 if (n < 0 || n >= loadmodel->num_textures)
5826 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
5829 out->texture = loadmodel->data_textures + n;
5830 n = LittleLong(in->effectindex);
5831 if (n < -1 || n >= loadmodel->brushq3.num_effects)
5833 if (developer_extra.integer)
5834 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
5840 out->effect = loadmodel->brushq3.data_effects + n;
5842 if (cls.state != ca_dedicated)
5844 out->lightmaptexture = NULL;
5845 out->deluxemaptexture = r_texture_blanknormalmap;
5846 n = LittleLong(in->lightmapindex);
5849 else if (n >= loadmodel->brushq3.num_originallightmaps)
5851 if(loadmodel->brushq3.num_originallightmaps != 0)
5852 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_originallightmaps);
5857 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n >> loadmodel->brushq3.num_lightmapmergedwidthheightdeluxepower];
5858 if (loadmodel->brushq3.deluxemapping)
5859 out->deluxemaptexture = loadmodel->brushq3.data_deluxemaps[n >> loadmodel->brushq3.num_lightmapmergedwidthheightdeluxepower];
5860 loadmodel->lit = true;
5864 firstvertex = LittleLong(in->firstvertex);
5865 numvertices = LittleLong(in->numvertices);
5866 firstelement = LittleLong(in->firstelement);
5867 numtriangles = LittleLong(in->numelements) / 3;
5868 if (numtriangles * 3 != LittleLong(in->numelements))
5870 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));
5873 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
5875 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);
5878 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
5880 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);
5885 case Q3FACETYPE_FLAT:
5886 case Q3FACETYPE_MESH:
5887 // no processing necessary
5889 case Q3FACETYPE_PATCH:
5890 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
5891 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
5892 if (numvertices != (patchsize[0] * patchsize[1]) || patchsize[0] < 3 || patchsize[1] < 3 || !(patchsize[0] & 1) || !(patchsize[1] & 1) || patchsize[0] * patchsize[1] >= (cls.state == ca_dedicated ? mod_q3bsp_curves_subdivisions_maxvertices.integer : min(r_subdivisions_maxvertices.integer, mod_q3bsp_curves_subdivisions_maxvertices.integer)))
5894 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
5897 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
5899 // convert patch to Q3FACETYPE_MESH
5900 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5901 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5902 // bound to user settings
5903 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
5904 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
5905 // bound to sanity settings
5906 xtess = bound(0, xtess, 1024);
5907 ytess = bound(0, ytess, 1024);
5909 // lower quality collision patches! Same procedure as before, but different cvars
5910 // convert patch to Q3FACETYPE_MESH
5911 cxtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, mod_q3bsp_curves_subdivisions_tolerance.value);
5912 cytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, mod_q3bsp_curves_subdivisions_tolerance.value);
5913 // bound to user settings
5914 cxtess = bound(mod_q3bsp_curves_subdivisions_mintess.integer, cxtess, mod_q3bsp_curves_subdivisions_maxtess.integer);
5915 cytess = bound(mod_q3bsp_curves_subdivisions_mintess.integer, cytess, mod_q3bsp_curves_subdivisions_maxtess.integer);
5916 // bound to sanity settings
5917 cxtess = bound(0, cxtess, 1024);
5918 cytess = bound(0, cytess, 1024);
5920 // store it for the LOD grouping step
5921 patchtess[patchtesscount].info.xsize = patchsize[0];
5922 patchtess[patchtesscount].info.ysize = patchsize[1];
5923 patchtess[patchtesscount].info.lods[PATCH_LOD_VISUAL].xtess = xtess;
5924 patchtess[patchtesscount].info.lods[PATCH_LOD_VISUAL].ytess = ytess;
5925 patchtess[patchtesscount].info.lods[PATCH_LOD_COLLISION].xtess = cxtess;
5926 patchtess[patchtesscount].info.lods[PATCH_LOD_COLLISION].ytess = cytess;
5928 patchtess[patchtesscount].surface_id = i;
5929 patchtess[patchtesscount].lodgroup[0] = LittleFloat(in->specific.patch.mins[0]);
5930 patchtess[patchtesscount].lodgroup[1] = LittleFloat(in->specific.patch.mins[1]);
5931 patchtess[patchtesscount].lodgroup[2] = LittleFloat(in->specific.patch.mins[2]);
5932 patchtess[patchtesscount].lodgroup[3] = LittleFloat(in->specific.patch.maxs[0]);
5933 patchtess[patchtesscount].lodgroup[4] = LittleFloat(in->specific.patch.maxs[1]);
5934 patchtess[patchtesscount].lodgroup[5] = LittleFloat(in->specific.patch.maxs[2]);
5935 patchtess[patchtesscount].originalvertex3f = originalvertex3f;
5938 case Q3FACETYPE_FLARE:
5939 if (developer_extra.integer)
5940 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
5944 out->num_vertices = numvertices;
5945 out->num_triangles = numtriangles;
5946 meshvertices += out->num_vertices;
5947 meshtriangles += out->num_triangles;
5950 // Fix patches tesselations so that they make no seams
5954 for(i = 0; i < patchtesscount; ++i)
5956 for(j = i+1; j < patchtesscount; ++j)
5958 if (!PATCHTESS_SAME_LODGROUP(patchtess[i], patchtess[j]))
5961 if (Q3PatchAdjustTesselation(3, &patchtess[i].info, patchtess[i].originalvertex3f, &patchtess[j].info, patchtess[j].originalvertex3f) )
5968 // Calculate resulting number of triangles
5969 collisionvertices = 0;
5970 collisiontriangles = 0;
5971 for(i = 0; i < patchtesscount; ++i)
5973 finalwidth = Q3PatchDimForTess(patchtess[i].info.xsize, patchtess[i].info.lods[PATCH_LOD_VISUAL].xtess);
5974 finalheight = Q3PatchDimForTess(patchtess[i].info.ysize,patchtess[i].info.lods[PATCH_LOD_VISUAL].ytess);
5975 numvertices = finalwidth * finalheight;
5976 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
5978 oldout[patchtess[i].surface_id].num_vertices = numvertices;
5979 oldout[patchtess[i].surface_id].num_triangles = numtriangles;
5980 meshvertices += oldout[patchtess[i].surface_id].num_vertices;
5981 meshtriangles += oldout[patchtess[i].surface_id].num_triangles;
5983 finalwidth = Q3PatchDimForTess(patchtess[i].info.xsize, patchtess[i].info.lods[PATCH_LOD_COLLISION].xtess);
5984 finalheight = Q3PatchDimForTess(patchtess[i].info.ysize,patchtess[i].info.lods[PATCH_LOD_COLLISION].ytess);
5985 numvertices = finalwidth * finalheight;
5986 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
5988 oldout[patchtess[i].surface_id].num_collisionvertices = numvertices;
5989 oldout[patchtess[i].surface_id].num_collisiontriangles = numtriangles;
5990 collisionvertices += oldout[patchtess[i].surface_id].num_collisionvertices;
5991 collisiontriangles += oldout[patchtess[i].surface_id].num_collisiontriangles;
5997 Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true);
5998 if (collisiontriangles)
6000 loadmodel->brush.data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, collisionvertices * sizeof(float[3]));
6001 loadmodel->brush.data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, collisiontriangles * sizeof(int[3]));
6005 collisionvertices = 0;
6006 collisiontriangles = 0;
6007 for (;i < count && meshvertices + out->num_vertices <= loadmodel->surfmesh.num_vertices;i++, in++, out++)
6009 if (out->num_vertices < 3 || out->num_triangles < 1)
6012 type = LittleLong(in->type);
6013 firstvertex = LittleLong(in->firstvertex);
6014 firstelement = LittleLong(in->firstelement);
6015 out->num_firstvertex = meshvertices;
6016 out->num_firsttriangle = meshtriangles;
6017 out->num_firstcollisiontriangle = collisiontriangles;
6020 case Q3FACETYPE_FLAT:
6021 case Q3FACETYPE_MESH:
6022 // no processing necessary, except for lightmap merging
6023 for (j = 0;j < out->num_vertices;j++)
6025 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
6026 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
6027 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
6028 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 0];
6029 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 1];
6030 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 2];
6031 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
6032 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
6033 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
6034 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
6035 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
6036 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
6037 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
6038 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
6040 for (j = 0;j < out->num_triangles*3;j++)
6041 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
6043 case Q3FACETYPE_PATCH:
6044 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
6045 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
6046 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
6047 originalnormal3f = loadmodel->brushq3.data_normal3f + firstvertex * 3;
6048 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
6049 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
6050 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
6052 xtess = ytess = cxtess = cytess = -1;
6053 for(j = 0; j < patchtesscount; ++j)
6054 if(patchtess[j].surface_id == i)
6056 xtess = patchtess[j].info.lods[PATCH_LOD_VISUAL].xtess;
6057 ytess = patchtess[j].info.lods[PATCH_LOD_VISUAL].ytess;
6058 cxtess = patchtess[j].info.lods[PATCH_LOD_COLLISION].xtess;
6059 cytess = patchtess[j].info.lods[PATCH_LOD_COLLISION].ytess;
6064 Con_Printf(CON_ERROR "ERROR: patch %d isn't preprocessed?!?\n", i);
6065 xtess = ytess = cxtess = cytess = 0;
6068 finalwidth = Q3PatchDimForTess(patchsize[0],xtess); //((patchsize[0] - 1) * xtess) + 1;
6069 finalheight = Q3PatchDimForTess(patchsize[1],ytess); //((patchsize[1] - 1) * ytess) + 1;
6070 finalvertices = finalwidth * finalheight;
6071 oldnumtriangles = finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
6072 type = Q3FACETYPE_MESH;
6073 // generate geometry
6074 // (note: normals are skipped because they get recalculated)
6075 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
6076 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalnormal3f, xtess, ytess);
6077 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
6078 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
6079 Q3PatchTesselateFloat(4, sizeof(float[4]), (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
6080 Q3PatchTriangleElements((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
6082 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);
6084 if (developer_extra.integer)
6086 if (out->num_triangles < finaltriangles)
6087 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);
6089 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);
6091 // q3map does not put in collision brushes for curves... ugh
6092 // build the lower quality collision geometry
6093 finalwidth = Q3PatchDimForTess(patchsize[0],cxtess); //((patchsize[0] - 1) * cxtess) + 1;
6094 finalheight = Q3PatchDimForTess(patchsize[1],cytess); //((patchsize[1] - 1) * cytess) + 1;
6095 finalvertices = finalwidth * finalheight;
6096 oldnumtriangles2 = finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
6098 // store collision geometry for BIH collision tree
6099 out->num_collisionvertices = finalvertices;
6100 out->num_collisiontriangles = finaltriangles;
6101 surfacecollisionvertex3f = loadmodel->brush.data_collisionvertex3f + collisionvertices * 3;
6102 surfacecollisionelement3i = loadmodel->brush.data_collisionelement3i + collisiontriangles * 3;
6103 Q3PatchTesselateFloat(3, sizeof(float[3]), surfacecollisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, cxtess, cytess);
6104 Q3PatchTriangleElements(surfacecollisionelement3i, finalwidth, finalheight, collisionvertices);
6105 Mod_SnapVertices(3, finalvertices, surfacecollisionvertex3f, 1);
6106 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(finaltriangles, surfacecollisionelement3i, surfacecollisionelement3i, loadmodel->brush.data_collisionvertex3f);
6108 if (developer_extra.integer)
6109 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);
6111 collisionvertices += finalvertices;
6112 collisiontriangles += out->num_collisiontriangles;
6117 meshvertices += out->num_vertices;
6118 meshtriangles += out->num_triangles;
6119 for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
6120 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)
6122 if (invalidelements)
6124 Con_Printf(CON_WARN "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);
6125 for (j = 0;j < out->num_triangles * 3;j++)
6127 Con_Printf(" %i", (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
6128 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)
6129 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
6133 // calculate a bounding box
6134 VectorClear(out->mins);
6135 VectorClear(out->maxs);
6136 if (out->num_vertices)
6138 if (cls.state != ca_dedicated && out->lightmaptexture)
6140 // figure out which part of the merged lightmap this fits into
6141 int lightmapindex = LittleLong(in->lightmapindex) >> (loadmodel->brushq3.deluxemapping ? 1 : 0);
6142 int mergewidth = R_TextureWidth(out->lightmaptexture) / loadmodel->brushq3.lightmapsize;
6143 int mergeheight = R_TextureHeight(out->lightmaptexture) / loadmodel->brushq3.lightmapsize;
6144 lightmapindex &= mergewidth * mergeheight - 1;
6145 lightmaptcscale[0] = 1.0f / mergewidth;
6146 lightmaptcscale[1] = 1.0f / mergeheight;
6147 lightmaptcbase[0] = (lightmapindex % mergewidth) * lightmaptcscale[0];
6148 lightmaptcbase[1] = (lightmapindex / mergewidth) * lightmaptcscale[1];
6149 // modify the lightmap texcoords to match this region of the merged lightmap
6150 for (j = 0, v = loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex;j < out->num_vertices;j++, v += 2)
6152 v[0] = v[0] * lightmaptcscale[0] + lightmaptcbase[0];
6153 v[1] = v[1] * lightmaptcscale[1] + lightmaptcbase[1];
6156 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->mins);
6157 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->maxs);
6158 for (j = 1, v = (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
6160 out->mins[0] = min(out->mins[0], v[0]);
6161 out->maxs[0] = max(out->maxs[0], v[0]);
6162 out->mins[1] = min(out->mins[1], v[1]);
6163 out->maxs[1] = max(out->maxs[1], v[1]);
6164 out->mins[2] = min(out->mins[2], v[2]);
6165 out->maxs[2] = max(out->maxs[2], v[2]);
6167 out->mins[0] -= 1.0f;
6168 out->mins[1] -= 1.0f;
6169 out->mins[2] -= 1.0f;
6170 out->maxs[0] += 1.0f;
6171 out->maxs[1] += 1.0f;
6172 out->maxs[2] += 1.0f;
6174 // set lightmap styles for consistency with q1bsp
6175 //out->lightmapinfo->styles[0] = 0;
6176 //out->lightmapinfo->styles[1] = 255;
6177 //out->lightmapinfo->styles[2] = 255;
6178 //out->lightmapinfo->styles[3] = 255;
6183 for (;i < count;i++, out++)
6185 if(out->num_vertices && out->num_triangles)
6187 if(out->num_vertices == 0)
6189 Con_Printf("Mod_Q3BSP_LoadFaces: surface %d (texture %s) has no vertices, ignoring\n", i, out->texture ? out->texture->name : "(none)");
6190 if(out->num_triangles == 0)
6191 Con_Printf("Mod_Q3BSP_LoadFaces: surface %d (texture %s) has no triangles, ignoring\n", i, out->texture ? out->texture->name : "(none)");
6193 else if(out->num_triangles == 0)
6194 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)",
6195 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[0 * 3 + 0],
6196 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[1 * 3 + 0],
6197 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[2 * 3 + 0]);
6200 // for per pixel lighting
6201 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);
6203 // generate ushort elements array if possible
6204 if (loadmodel->surfmesh.data_element3s)
6205 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
6206 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
6208 // free the no longer needed vertex data
6209 loadmodel->brushq3.num_vertices = 0;
6210 if (loadmodel->brushq3.data_vertex3f)
6211 Mem_Free(loadmodel->brushq3.data_vertex3f);
6212 loadmodel->brushq3.data_vertex3f = NULL;
6213 loadmodel->brushq3.data_normal3f = NULL;
6214 loadmodel->brushq3.data_texcoordtexture2f = NULL;
6215 loadmodel->brushq3.data_texcoordlightmap2f = NULL;
6216 loadmodel->brushq3.data_color4f = NULL;
6217 // free the no longer needed triangle data
6218 loadmodel->brushq3.num_triangles = 0;
6219 if (loadmodel->brushq3.data_element3i)
6220 Mem_Free(loadmodel->brushq3.data_element3i);
6221 loadmodel->brushq3.data_element3i = NULL;
6224 Mem_Free(patchtess);
6227 static void Mod_Q3BSP_LoadModels(lump_t *l)
6231 int i, j, n, c, count;
6233 in = (q3dmodel_t *)(mod_base + l->fileofs);
6234 if (l->filelen % sizeof(*in))
6235 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
6236 count = l->filelen / sizeof(*in);
6237 out = (q3dmodel_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6239 loadmodel->brushq3.data_models = out;
6240 loadmodel->brushq3.num_models = count;
6242 for (i = 0;i < count;i++, in++, out++)
6244 for (j = 0;j < 3;j++)
6246 out->mins[j] = LittleFloat(in->mins[j]);
6247 out->maxs[j] = LittleFloat(in->maxs[j]);
6249 n = LittleLong(in->firstface);
6250 c = LittleLong(in->numfaces);
6251 if (n < 0 || n + c > loadmodel->num_surfaces)
6252 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)", n, n + c, loadmodel->num_surfaces);
6255 n = LittleLong(in->firstbrush);
6256 c = LittleLong(in->numbrushes);
6257 if (n < 0 || n + c > loadmodel->brush.num_brushes)
6258 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)", n, n + c, loadmodel->brush.num_brushes);
6259 out->firstbrush = n;
6260 out->numbrushes = c;
6264 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
6270 in = (int *)(mod_base + l->fileofs);
6271 if (l->filelen % sizeof(*in))
6272 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
6273 count = l->filelen / sizeof(*in);
6274 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6276 loadmodel->brush.data_leafbrushes = out;
6277 loadmodel->brush.num_leafbrushes = count;
6279 for (i = 0;i < count;i++, in++, out++)
6281 n = LittleLong(*in);
6282 if (n < 0 || n >= loadmodel->brush.num_brushes)
6283 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)", n, loadmodel->brush.num_brushes);
6288 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
6294 in = (int *)(mod_base + l->fileofs);
6295 if (l->filelen % sizeof(*in))
6296 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
6297 count = l->filelen / sizeof(*in);
6298 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6300 loadmodel->brush.data_leafsurfaces = out;
6301 loadmodel->brush.num_leafsurfaces = count;
6303 for (i = 0;i < count;i++, in++, out++)
6305 n = LittleLong(*in);
6306 if (n < 0 || n >= loadmodel->num_surfaces)
6307 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)", n, loadmodel->num_surfaces);
6312 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
6316 int i, j, n, c, count;
6318 in = (q3dleaf_t *)(mod_base + l->fileofs);
6319 if (l->filelen % sizeof(*in))
6320 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
6321 count = l->filelen / sizeof(*in);
6322 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6324 loadmodel->brush.data_leafs = out;
6325 loadmodel->brush.num_leafs = count;
6327 for (i = 0;i < count;i++, in++, out++)
6331 out->clusterindex = LittleLong(in->clusterindex);
6332 out->areaindex = LittleLong(in->areaindex);
6333 for (j = 0;j < 3;j++)
6335 // yes the mins/maxs are ints
6336 out->mins[j] = LittleLong(in->mins[j]) - 1;
6337 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
6339 n = LittleLong(in->firstleafface);
6340 c = LittleLong(in->numleaffaces);
6341 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
6342 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)", n, n + c, loadmodel->brush.num_leafsurfaces);
6343 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
6344 out->numleafsurfaces = c;
6345 n = LittleLong(in->firstleafbrush);
6346 c = LittleLong(in->numleafbrushes);
6347 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
6348 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)", n, n + c, loadmodel->brush.num_leafbrushes);
6349 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
6350 out->numleafbrushes = c;
6354 static void Mod_Q3BSP_LoadNodes(lump_t *l)
6360 in = (q3dnode_t *)(mod_base + l->fileofs);
6361 if (l->filelen % sizeof(*in))
6362 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
6363 count = l->filelen / sizeof(*in);
6365 Host_Error("Mod_Q3BSP_LoadNodes: missing BSP tree in %s",loadmodel->name);
6366 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6368 loadmodel->brush.data_nodes = out;
6369 loadmodel->brush.num_nodes = count;
6371 for (i = 0;i < count;i++, in++, out++)
6374 n = LittleLong(in->planeindex);
6375 if (n < 0 || n >= loadmodel->brush.num_planes)
6376 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
6377 out->plane = loadmodel->brush.data_planes + n;
6378 for (j = 0;j < 2;j++)
6380 n = LittleLong(in->childrenindex[j]);
6383 if (n >= loadmodel->brush.num_nodes)
6384 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)", n, loadmodel->brush.num_nodes);
6385 out->children[j] = loadmodel->brush.data_nodes + n;
6390 if (n >= loadmodel->brush.num_leafs)
6391 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)", n, loadmodel->brush.num_leafs);
6392 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
6395 for (j = 0;j < 3;j++)
6397 // yes the mins/maxs are ints
6398 out->mins[j] = LittleLong(in->mins[j]) - 1;
6399 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
6403 // set the parent pointers
6404 Mod_BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
6407 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
6410 q3dlightgrid_t *out;
6414 unsigned char *texturergba, *texturelayer[3], *texturepadding[2];
6415 double lightgridmatrix[4][4];
6417 in = (q3dlightgrid_t *)(mod_base + l->fileofs);
6418 if (l->filelen % sizeof(*in))
6419 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
6420 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
6421 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
6422 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
6423 loadmodel->brushq3.num_lightgrid_imins[0] = (int)ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
6424 loadmodel->brushq3.num_lightgrid_imins[1] = (int)ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
6425 loadmodel->brushq3.num_lightgrid_imins[2] = (int)ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
6426 loadmodel->brushq3.num_lightgrid_imaxs[0] = (int)floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
6427 loadmodel->brushq3.num_lightgrid_imaxs[1] = (int)floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
6428 loadmodel->brushq3.num_lightgrid_imaxs[2] = (int)floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
6429 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
6430 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
6431 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
6432 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
6433 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]);
6434 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]);
6436 // if lump is empty there is nothing to load, we can deal with that in the LightPoint code
6439 if (l->filelen < count * (int)sizeof(*in))
6441 Con_Printf(CON_ERROR "Mod_Q3BSP_LoadLightGrid: invalid lightgrid lump size %i bytes, should be %i bytes (%ix%ix%i)", l->filelen, (int)(count * sizeof(*in)), loadmodel->brushq3.num_lightgrid_isize[0], loadmodel->brushq3.num_lightgrid_isize[1], loadmodel->brushq3.num_lightgrid_isize[2]);
6442 return; // ignore the grid if we cannot understand it
6444 if (l->filelen != count * (int)sizeof(*in))
6445 Con_Printf(CON_WARN "Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", (int)(count * sizeof(*in)), l->filelen);
6446 out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6447 loadmodel->brushq3.data_lightgrid = out;
6448 loadmodel->brushq3.num_lightgrid = count;
6449 // no swapping or validation necessary
6450 memcpy(out, in, count * (int)sizeof(*out));
6452 if(mod_q3bsp_sRGBlightmaps.integer)
6454 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
6456 // we fix the brightness consistently via lightmapscale
6460 for(i = 0; i < count; ++i)
6462 out[i].ambientrgb[0] = floor(Image_LinearFloatFromsRGB(out[i].ambientrgb[0]) * 255.0f + 0.5f);
6463 out[i].ambientrgb[1] = floor(Image_LinearFloatFromsRGB(out[i].ambientrgb[1]) * 255.0f + 0.5f);
6464 out[i].ambientrgb[2] = floor(Image_LinearFloatFromsRGB(out[i].ambientrgb[2]) * 255.0f + 0.5f);
6465 out[i].diffusergb[0] = floor(Image_LinearFloatFromsRGB(out[i].diffusergb[0]) * 255.0f + 0.5f);
6466 out[i].diffusergb[1] = floor(Image_LinearFloatFromsRGB(out[i].diffusergb[1]) * 255.0f + 0.5f);
6467 out[i].diffusergb[2] = floor(Image_LinearFloatFromsRGB(out[i].diffusergb[2]) * 255.0f + 0.5f);
6473 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
6475 for(i = 0; i < count; ++i)
6477 out[i].ambientrgb[0] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].ambientrgb[0]) * 255.0f + 0.5f);
6478 out[i].ambientrgb[1] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].ambientrgb[1]) * 255.0f + 0.5f);
6479 out[i].ambientrgb[2] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].ambientrgb[2]) * 255.0f + 0.5f);
6480 out[i].diffusergb[0] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].diffusergb[0]) * 255.0f + 0.5f);
6481 out[i].diffusergb[1] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].diffusergb[1]) * 255.0f + 0.5f);
6482 out[i].diffusergb[2] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].diffusergb[2]) * 255.0f + 0.5f);
6491 if (mod_q3bsp_lightgrid_texture.integer)
6493 // build a texture to hold the data for per-pixel sampling
6494 // this has 3 different kinds of data stacked in it:
6496 // bent-normal light color
6497 // bent-normal light dir
6499 texturesize[0] = loadmodel->brushq3.num_lightgrid_isize[0];
6500 texturesize[1] = loadmodel->brushq3.num_lightgrid_isize[1];
6501 texturesize[2] = (loadmodel->brushq3.num_lightgrid_isize[2] + 2) * 3;
6502 texturergba = (unsigned char*)Mem_Alloc(loadmodel->mempool, texturesize[0] * texturesize[1] * texturesize[2] * sizeof(char[4]));
6503 texturelayer[0] = texturergba + loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * 4;
6504 texturelayer[1] = texturelayer[0] + (loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * (loadmodel->brushq3.num_lightgrid_isize[2] + 2)) * 4;
6505 texturelayer[2] = texturelayer[1] + (loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * (loadmodel->brushq3.num_lightgrid_isize[2] + 2)) * 4;
6506 // the light dir layer needs padding above/below it that is a neutral unsigned normal (127,127,127,255)
6507 texturepadding[0] = texturelayer[2] - loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * 4;
6508 texturepadding[1] = texturelayer[2] + loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2] * 4;
6509 for (i = 0; i < texturesize[0] * texturesize[1]; i++)
6511 texturepadding[0][i * 4] = texturepadding[1][i * 4] = 127;
6512 texturepadding[0][i * 4 + 1] = texturepadding[1][i * 4 + 1] = 127;
6513 texturepadding[0][i * 4 + 2] = texturepadding[1][i * 4 + 2] = 127;
6514 texturepadding[0][i * 4 + 3] = texturepadding[1][i * 4 + 3] = 255;
6516 for (i = 0; i < count; i++)
6518 texturelayer[0][i * 4 + 0] = out[i].ambientrgb[0];
6519 texturelayer[0][i * 4 + 1] = out[i].ambientrgb[1];
6520 texturelayer[0][i * 4 + 2] = out[i].ambientrgb[2];
6521 texturelayer[0][i * 4 + 3] = 255;
6522 texturelayer[1][i * 4 + 0] = out[i].diffusergb[0];
6523 texturelayer[1][i * 4 + 1] = out[i].diffusergb[1];
6524 texturelayer[1][i * 4 + 2] = out[i].diffusergb[2];
6525 texturelayer[1][i * 4 + 3] = 255;
6526 // this uses the mod_md3_sin table because the values are
6527 // already in the 0-255 range, the 64+ bias fetches a cosine
6528 // instead of a sine value
6529 texturelayer[2][i * 4 + 0] = (char)((mod_md3_sin[64 + out[i].diffuseyaw] * mod_md3_sin[out[i].diffusepitch]) * 127 + 127);
6530 texturelayer[2][i * 4 + 1] = (char)((mod_md3_sin[out[i].diffuseyaw] * mod_md3_sin[out[i].diffusepitch]) * 127 + 127);
6531 texturelayer[2][i * 4 + 2] = (char)((mod_md3_sin[64 + out[i].diffusepitch]) * 127 + 127);
6532 texturelayer[2][i * 4 + 3] = 255;
6537 for (z = 0; z < loadmodel->brushq3.num_lightgrid_isize[2]; z++)
6539 for (y = 0; y < loadmodel->brushq3.num_lightgrid_isize[1]; y++)
6541 for (x = 0; x < loadmodel->brushq3.num_lightgrid_isize[0]; x++)
6543 i = (z * texturesize[1] + y) * texturesize[0] + x;
6544 texturelayer[0][i * 4 + 0] = x * 256 / loadmodel->brushq3.num_lightgrid_isize[0];
6545 texturelayer[0][i * 4 + 1] = y * 256 / loadmodel->brushq3.num_lightgrid_isize[1];
6546 texturelayer[0][i * 4 + 2] = z * 256 / loadmodel->brushq3.num_lightgrid_isize[2];
6551 loadmodel->brushq3.lightgridtexturesize[0] = texturesize[0];
6552 loadmodel->brushq3.lightgridtexturesize[1] = texturesize[1];
6553 loadmodel->brushq3.lightgridtexturesize[2] = texturesize[2];
6554 memset(lightgridmatrix[0], 0, sizeof(lightgridmatrix));
6555 lightgridmatrix[0][0] = loadmodel->brushq3.num_lightgrid_scale[0] / texturesize[0];
6556 lightgridmatrix[1][1] = loadmodel->brushq3.num_lightgrid_scale[1] / texturesize[1];
6557 lightgridmatrix[2][2] = loadmodel->brushq3.num_lightgrid_scale[2] / texturesize[2];
6558 lightgridmatrix[0][3] = -(loadmodel->brushq3.num_lightgrid_imins[0] - 0.5f) / texturesize[0];
6559 lightgridmatrix[1][3] = -(loadmodel->brushq3.num_lightgrid_imins[1] - 0.5f) / texturesize[1];
6560 lightgridmatrix[2][3] = -(loadmodel->brushq3.num_lightgrid_imins[2] - 1.5f) / texturesize[2];
6561 lightgridmatrix[3][3] = 1;
6562 Matrix4x4_FromArrayDoubleD3D(&loadmodel->brushq3.lightgridworldtotexturematrix, lightgridmatrix);
6563 loadmodel->brushq3.lightgridtexture = R_LoadTexture3D(loadmodel->texturepool, "lightgrid", texturesize[0], texturesize[1], texturesize[2], texturergba, TEXTYPE_RGBA, TEXF_CLAMP, 0, NULL);
6564 Mem_Free(texturergba);
6569 static void Mod_Q3BSP_LoadPVS(lump_t *l)
6574 if (l->filelen == 0)
6577 // unvised maps often have cluster indices even without pvs, so check
6578 // leafs to find real number of clusters
6579 loadmodel->brush.num_pvsclusters = 1;
6580 for (i = 0;i < loadmodel->brush.num_leafs;i++)
6581 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
6584 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
6585 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
6586 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
6587 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
6591 in = (q3dpvs_t *)(mod_base + l->fileofs);
6593 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
6595 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
6596 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
6597 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
6598 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
6599 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
6600 if (l->filelen < totalchains + (int)sizeof(*in))
6601 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);
6603 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
6604 memcpy(loadmodel->brush.data_pvsclusters, (unsigned char *)(in + 1), totalchains);
6607 static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
6609 int i, j, k, index[3];
6610 float transformed[3], blend1, blend2, blend, stylescale = 1;
6611 q3dlightgrid_t *a, *s;
6613 // scale lighting by lightstyle[0] so that darkmode in dpmod works properly
6614 // LadyHavoc: FIXME: is this true?
6615 stylescale = 1; // added while render
6616 //stylescale = r_refdef.scene.rtlightstylevalue[0];
6618 if (!model->brushq3.num_lightgrid)
6620 ambientcolor[0] = stylescale;
6621 ambientcolor[1] = stylescale;
6622 ambientcolor[2] = stylescale;
6626 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
6627 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
6628 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
6629 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
6630 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
6631 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
6632 index[0] = (int)floor(transformed[0]);
6633 index[1] = (int)floor(transformed[1]);
6634 index[2] = (int)floor(transformed[2]);
6635 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
6637 // now lerp the values
6638 VectorClear(diffusenormal);
6639 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
6640 for (k = 0;k < 2;k++)
6642 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
6643 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
6645 for (j = 0;j < 2;j++)
6647 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
6648 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
6650 for (i = 0;i < 2;i++)
6652 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0]))) * stylescale;
6653 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
6655 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
6656 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
6657 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
6658 // this uses the mod_md3_sin table because the values are
6659 // already in the 0-255 range, the 64+ bias fetches a cosine
6660 // instead of a sine value
6661 diffusenormal[0] += blend * (mod_md3_sin[64 + s->diffuseyaw] * mod_md3_sin[s->diffusepitch]);
6662 diffusenormal[1] += blend * (mod_md3_sin[ s->diffuseyaw] * mod_md3_sin[s->diffusepitch]);
6663 diffusenormal[2] += blend * (mod_md3_sin[64 + s->diffusepitch]);
6664 //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)));
6669 // normalize the light direction before turning
6670 VectorNormalize(diffusenormal);
6671 //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]);
6674 static int Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(mnode_t *node, double p1[3], double p2[3], double endpos[3])
6677 double midf, mid[3];
6683 // find the point distances
6684 mplane_t *plane = node->plane;
6685 if (plane->type < 3)
6687 t1 = p1[plane->type] - plane->dist;
6688 t2 = p2[plane->type] - plane->dist;
6692 t1 = DotProduct (plane->normal, p1) - plane->dist;
6693 t2 = DotProduct (plane->normal, p2) - plane->dist;
6700 node = node->children[1];
6709 node = node->children[0];
6715 midf = t1 / (t1 - t2);
6716 VectorLerp(p1, midf, p2, mid);
6718 // recurse both sides, front side first
6719 // return 2 if empty is followed by solid (hit something)
6720 // do not return 2 if both are solid or both empty,
6721 // or if start is solid and end is empty
6722 // as these degenerate cases usually indicate the eye is in solid and
6723 // should see the target point anyway
6724 ret = Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ], p1, mid, endpos);
6727 ret = Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ^ 1], mid, p2, endpos);
6730 VectorCopy(mid, endpos);
6733 return ((mleaf_t *)node)->clusterindex < 0;
6736 static qbool Mod_Q3BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end, const vec3_t acceptmins, const vec3_t acceptmaxs)
6738 if (model->brush.submodel || mod_q3bsp_tracelineofsight_brushes.integer)
6741 model->TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK, 0, MATERIALFLAGMASK_TRANSLUCENT);
6742 return trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, acceptmins, acceptmaxs);
6746 double tracestart[3], traceend[3], traceendpos[3];
6747 VectorCopy(start, tracestart);
6748 VectorCopy(end, traceend);
6749 VectorCopy(end, traceendpos);
6750 Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(model->brush.data_nodes, tracestart, traceend, traceendpos);
6751 return BoxesOverlap(traceendpos, traceendpos, acceptmins, acceptmaxs);
6755 void Mod_CollisionBIH_TracePoint(model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
6758 const bih_leaf_t *leaf;
6759 const bih_node_t *node;
6760 const colbrushf_t *brush;
6763 int nodestackpos = 0;
6764 int nodestack[1024];
6766 memset(trace, 0, sizeof(*trace));
6767 trace->fraction = 1;
6768 trace->hitsupercontentsmask = hitsupercontentsmask;
6769 trace->skipsupercontentsmask = skipsupercontentsmask;
6770 trace->skipmaterialflagsmask = skipmaterialflagsmask;
6772 bih = &model->collision_bih;
6776 nodenum = bih->rootnode;
6777 nodestack[nodestackpos++] = nodenum;
6778 while (nodestackpos)
6780 nodenum = nodestack[--nodestackpos];
6781 node = bih->nodes + nodenum;
6783 if (!BoxesOverlap(start, start, node->mins, node->maxs))
6786 if (node->type <= BIH_SPLITZ && nodestackpos+2 <= 1024)
6788 axis = node->type - BIH_SPLITX;
6789 if (start[axis] >= node->frontmin)
6790 nodestack[nodestackpos++] = node->front;
6791 if (start[axis] <= node->backmax)
6792 nodestack[nodestackpos++] = node->back;
6794 else if (node->type == BIH_UNORDERED)
6796 for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
6798 leaf = bih->leafs + node->children[axis];
6800 if (!BoxesOverlap(start, start, leaf->mins, leaf->maxs))
6806 brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
6807 Collision_TracePointBrushFloat(trace, start, brush);
6809 case BIH_COLLISIONTRIANGLE:
6810 // collision triangle - skipped because they have no volume
6812 case BIH_RENDERTRIANGLE:
6813 // render triangle - skipped because they have no volume
6821 static void Mod_CollisionBIH_TraceLineShared(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)
6823 const bih_leaf_t *leaf;
6824 const bih_node_t *node;
6825 const colbrushf_t *brush;
6827 const texture_t *texture;
6828 vec3_t nodebigmins, nodebigmaxs, nodestart, nodeend, sweepnodemins, sweepnodemaxs;
6829 vec_t d1, d2, d3, d4, f, nodestackline[1024][6];
6830 int axis, nodenum, nodestackpos = 0, nodestack[1024];
6835 if (VectorCompare(start, end))
6837 Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
6841 nodenum = bih->rootnode;
6843 memset(trace, 0, sizeof(*trace));
6844 trace->fraction = 1;
6845 trace->hitsupercontentsmask = hitsupercontentsmask;
6846 trace->skipsupercontentsmask = skipsupercontentsmask;
6847 trace->skipmaterialflagsmask = skipmaterialflagsmask;
6850 nodestackline[nodestackpos][0] = start[0];
6851 nodestackline[nodestackpos][1] = start[1];
6852 nodestackline[nodestackpos][2] = start[2];
6853 nodestackline[nodestackpos][3] = end[0];
6854 nodestackline[nodestackpos][4] = end[1];
6855 nodestackline[nodestackpos][5] = end[2];
6856 nodestack[nodestackpos++] = nodenum;
6857 while (nodestackpos)
6859 nodenum = nodestack[--nodestackpos];
6860 node = bih->nodes + nodenum;
6861 VectorCopy(nodestackline[nodestackpos], nodestart);
6862 VectorCopy(nodestackline[nodestackpos] + 3, nodeend);
6863 sweepnodemins[0] = min(nodestart[0], nodeend[0]) - 1;
6864 sweepnodemins[1] = min(nodestart[1], nodeend[1]) - 1;
6865 sweepnodemins[2] = min(nodestart[2], nodeend[2]) - 1;
6866 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + 1;
6867 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + 1;
6868 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + 1;
6869 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, node->mins, node->maxs) && !collision_bih_fullrecursion.integer)
6871 if (node->type <= BIH_SPLITZ && nodestackpos+2 <= 1024)
6873 // recurse children of the split
6874 axis = node->type - BIH_SPLITX;
6875 d1 = node->backmax - nodestart[axis];
6876 d2 = node->backmax - nodeend[axis];
6877 d3 = nodestart[axis] - node->frontmin;
6878 d4 = nodeend[axis] - node->frontmin;
6879 if (collision_bih_fullrecursion.integer)
6880 d1 = d2 = d3 = d4 = 1; // force full recursion
6881 switch((d1 < 0) | ((d2 < 0) << 1) | ((d3 < 0) << 2) | ((d4 < 0) << 3))
6883 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;
6884 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;
6885 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;
6886 case 3: /* <<>> */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6887 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;
6888 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;
6889 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;
6890 case 7: /* <<<> */ f = d3 / (d3 - d4); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6891 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;
6892 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;
6893 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;
6894 case 11: /* <<>< */ f = d3 / (d3 - d4); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6895 case 12: /* >><< */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6896 case 13: /* <><< */ f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6897 case 14: /* ><<< */ f = d1 / (d1 - d2); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6898 case 15: /* <<<< */ break;
6901 else if (node->type == BIH_UNORDERED)
6903 // calculate sweep bounds for this node
6904 // copy node bounds into local variables
6905 VectorCopy(node->mins, nodebigmins);
6906 VectorCopy(node->maxs, nodebigmaxs);
6907 // clip line to this node bounds
6908 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); }
6909 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); }
6910 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); }
6911 // some of the line intersected the enlarged node box
6912 // calculate sweep bounds for this node
6913 sweepnodemins[0] = min(nodestart[0], nodeend[0]) - 1;
6914 sweepnodemins[1] = min(nodestart[1], nodeend[1]) - 1;
6915 sweepnodemins[2] = min(nodestart[2], nodeend[2]) - 1;
6916 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + 1;
6917 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + 1;
6918 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + 1;
6919 for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
6921 leaf = bih->leafs + node->children[axis];
6922 // TODO: This is very expensive in Steel Storm. Framerate halved during even light combat.
6923 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, leaf->mins, leaf->maxs))
6928 brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
6929 Collision_TraceLineBrushFloat(trace, start, end, brush, brush);
6931 case BIH_COLLISIONTRIANGLE:
6932 if (!mod_q3bsp_curves_collisions.integer)
6934 e = model->brush.data_collisionelement3i + 3*leaf->itemindex;
6935 texture = model->data_textures + leaf->textureindex;
6936 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);
6938 case BIH_RENDERTRIANGLE:
6939 e = model->surfmesh.data_element3i + 3*leaf->itemindex;
6940 texture = model->data_textures + leaf->textureindex;
6941 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);
6949 void Mod_CollisionBIH_TraceLine(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)
6951 if (VectorCompare(start, end))
6953 Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
6956 Mod_CollisionBIH_TraceLineShared(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, &model->collision_bih);
6959 void Mod_CollisionBIH_TraceBrush(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)
6962 const bih_leaf_t *leaf;
6963 const bih_node_t *node;
6964 const colbrushf_t *brush;
6966 const texture_t *texture;
6967 vec3_t start, end, startmins, startmaxs, endmins, endmaxs, mins, maxs;
6968 vec3_t nodebigmins, nodebigmaxs, nodestart, nodeend, sweepnodemins, sweepnodemaxs;
6969 vec_t d1, d2, d3, d4, f, nodestackline[1024][6];
6970 int axis, nodenum, nodestackpos = 0, nodestack[1024];
6972 if (mod_q3bsp_optimizedtraceline.integer && VectorCompare(thisbrush_start->mins, thisbrush_start->maxs) && VectorCompare(thisbrush_end->mins, thisbrush_end->maxs))
6974 if (VectorCompare(thisbrush_start->mins, thisbrush_end->mins))
6975 Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, thisbrush_start->mins, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
6977 Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, thisbrush_start->mins, thisbrush_end->mins, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
6981 bih = &model->collision_bih;
6984 nodenum = bih->rootnode;
6986 // box trace, performed as brush trace
6987 memset(trace, 0, sizeof(*trace));
6988 trace->fraction = 1;
6989 trace->hitsupercontentsmask = hitsupercontentsmask;
6990 trace->skipsupercontentsmask = skipsupercontentsmask;
6991 trace->skipmaterialflagsmask = skipmaterialflagsmask;
6993 // calculate tracebox-like parameters for efficient culling
6994 VectorMAM(0.5f, thisbrush_start->mins, 0.5f, thisbrush_start->maxs, start);
6995 VectorMAM(0.5f, thisbrush_end->mins, 0.5f, thisbrush_end->maxs, end);
6996 VectorSubtract(thisbrush_start->mins, start, startmins);
6997 VectorSubtract(thisbrush_start->maxs, start, startmaxs);
6998 VectorSubtract(thisbrush_end->mins, end, endmins);
6999 VectorSubtract(thisbrush_end->maxs, end, endmaxs);
7000 mins[0] = min(startmins[0], endmins[0]);
7001 mins[1] = min(startmins[1], endmins[1]);
7002 mins[2] = min(startmins[2], endmins[2]);
7003 maxs[0] = max(startmaxs[0], endmaxs[0]);
7004 maxs[1] = max(startmaxs[1], endmaxs[1]);
7005 maxs[2] = max(startmaxs[2], endmaxs[2]);
7008 nodestackline[nodestackpos][0] = start[0];
7009 nodestackline[nodestackpos][1] = start[1];
7010 nodestackline[nodestackpos][2] = start[2];
7011 nodestackline[nodestackpos][3] = end[0];
7012 nodestackline[nodestackpos][4] = end[1];
7013 nodestackline[nodestackpos][5] = end[2];
7014 nodestack[nodestackpos++] = nodenum;
7015 while (nodestackpos)
7017 nodenum = nodestack[--nodestackpos];
7018 node = bih->nodes + nodenum;
7019 VectorCopy(nodestackline[nodestackpos], nodestart);
7020 VectorCopy(nodestackline[nodestackpos] + 3, nodeend);
7021 sweepnodemins[0] = min(nodestart[0], nodeend[0]) + mins[0] - 1;
7022 sweepnodemins[1] = min(nodestart[1], nodeend[1]) + mins[1] - 1;
7023 sweepnodemins[2] = min(nodestart[2], nodeend[2]) + mins[2] - 1;
7024 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + maxs[0] + 1;
7025 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + maxs[1] + 1;
7026 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + maxs[2] + 1;
7027 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, node->mins, node->maxs))
7029 if (node->type <= BIH_SPLITZ && nodestackpos+2 <= 1024)
7031 // recurse children of the split
7032 axis = node->type - BIH_SPLITX;
7033 d1 = node->backmax - nodestart[axis] - mins[axis];
7034 d2 = node->backmax - nodeend[axis] - mins[axis];
7035 d3 = nodestart[axis] - node->frontmin + maxs[axis];
7036 d4 = nodeend[axis] - node->frontmin + maxs[axis];
7037 switch((d1 < 0) | ((d2 < 0) << 1) | ((d3 < 0) << 2) | ((d4 < 0) << 3))
7039 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;
7040 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;
7041 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;
7042 case 3: /* <<>> */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7043 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;
7044 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;
7045 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;
7046 case 7: /* <<<> */ f = d3 / (d3 - d4); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7047 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;
7048 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;
7049 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;
7050 case 11: /* <<>< */ f = d3 / (d3 - d4); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7051 case 12: /* >><< */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
7052 case 13: /* <><< */ f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
7053 case 14: /* ><<< */ f = d1 / (d1 - d2); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
7054 case 15: /* <<<< */ break;
7057 else if (node->type == BIH_UNORDERED)
7059 // calculate sweep bounds for this node
7060 // copy node bounds into local variables and expand to get Minkowski Sum of the two shapes
7061 VectorSubtract(node->mins, maxs, nodebigmins);
7062 VectorSubtract(node->maxs, mins, nodebigmaxs);
7063 // clip line to this node bounds
7064 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); }
7065 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); }
7066 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); }
7067 // some of the line intersected the enlarged node box
7068 // calculate sweep bounds for this node
7069 sweepnodemins[0] = min(nodestart[0], nodeend[0]) + mins[0] - 1;
7070 sweepnodemins[1] = min(nodestart[1], nodeend[1]) + mins[1] - 1;
7071 sweepnodemins[2] = min(nodestart[2], nodeend[2]) + mins[2] - 1;
7072 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + maxs[0] + 1;
7073 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + maxs[1] + 1;
7074 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + maxs[2] + 1;
7075 for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
7077 leaf = bih->leafs + node->children[axis];
7078 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, leaf->mins, leaf->maxs))
7083 brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
7084 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
7086 case BIH_COLLISIONTRIANGLE:
7087 if (!mod_q3bsp_curves_collisions.integer)
7089 e = model->brush.data_collisionelement3i + 3*leaf->itemindex;
7090 texture = model->data_textures + leaf->textureindex;
7091 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);
7093 case BIH_RENDERTRIANGLE:
7094 e = model->surfmesh.data_element3i + 3*leaf->itemindex;
7095 texture = model->data_textures + leaf->textureindex;
7096 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);
7104 void Mod_CollisionBIH_TraceBox(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)
7106 colboxbrushf_t thisbrush_start, thisbrush_end;
7107 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
7109 // box trace, performed as brush trace
7110 VectorAdd(start, boxmins, boxstartmins);
7111 VectorAdd(start, boxmaxs, boxstartmaxs);
7112 VectorAdd(end, boxmins, boxendmins);
7113 VectorAdd(end, boxmaxs, boxendmaxs);
7114 Collision_BrushForBox(&thisbrush_start, boxstartmins, boxstartmaxs, 0, 0, NULL);
7115 Collision_BrushForBox(&thisbrush_end, boxendmins, boxendmaxs, 0, 0, NULL);
7116 Mod_CollisionBIH_TraceBrush(model, frameblend, skeleton, trace, &thisbrush_start.brush, &thisbrush_end.brush, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7120 int Mod_CollisionBIH_PointSuperContents(struct model_s *model, int frame, const vec3_t point)
7123 Mod_CollisionBIH_TracePoint(model, NULL, NULL, &trace, point, 0, 0, 0);
7124 return trace.startsupercontents;
7127 qbool Mod_CollisionBIH_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end, const vec3_t acceptmins, const vec3_t acceptmaxs)
7130 Mod_CollisionBIH_TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK, 0, MATERIALFLAGMASK_TRANSLUCENT);
7131 return trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, acceptmins, acceptmaxs);
7134 void Mod_CollisionBIH_TracePoint_Mesh(model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, int hitsupercontentsmask, int skipsupercontentsmask, int skipmaterialflagsmask)
7137 // broken - needs to be modified to count front faces and backfaces to figure out if it is in solid
7139 int hitsupercontents;
7140 VectorSet(end, start[0], start[1], model->normalmins[2]);
7142 memset(trace, 0, sizeof(*trace));
7143 trace->fraction = 1;
7144 trace->hitsupercontentsmask = hitsupercontentsmask;
7145 trace->skipsupercontentsmask = skipsupercontentsmask;
7146 trace->skipmaterialflagsmask = skipmaterialflagsmask;
7148 Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7149 hitsupercontents = trace->hitsupercontents;
7150 memset(trace, 0, sizeof(*trace));
7151 trace->fraction = 1;
7152 trace->hitsupercontentsmask = hitsupercontentsmask;
7153 trace->skipsupercontentsmask = skipsupercontentsmask;
7154 trace->skipmaterialflagsmask = skipmaterialflagsmask;
7155 trace->startsupercontents = hitsupercontents;
7159 int Mod_CollisionBIH_PointSuperContents_Mesh(struct model_s *model, int frame, const vec3_t start)
7162 // broken - needs to be modified to count front faces and backfaces to figure out if it is in solid
7165 VectorSet(end, start[0], start[1], model->normalmins[2]);
7166 memset(&trace, 0, sizeof(trace));
7168 trace.hitsupercontentsmask = hitsupercontentsmask;
7169 trace.skipsupercontentsmask = skipsupercontentsmask;
7170 trace.skipmaterialflagsmask = skipmaterialflagsmask;
7171 Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7172 return trace.hitsupercontents;
7178 void Mod_CollisionBIH_TraceLineAgainstSurfaces(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)
7180 Mod_CollisionBIH_TraceLineShared(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, &model->render_bih);
7184 bih_t *Mod_MakeCollisionBIH(model_t *model, qbool userendersurfaces, bih_t *out)
7192 int nummodelbrushes = model->nummodelbrushes;
7194 const int *collisionelement3i;
7195 const float *collisionvertex3f;
7196 const int *renderelement3i;
7197 const float *rendervertex3f;
7198 bih_leaf_t *bihleafs;
7199 bih_node_t *bihnodes;
7201 int *temp_leafsortscratch;
7202 const msurface_t *surface;
7203 const q3mbrush_t *brush;
7205 // find out how many BIH leaf nodes we need
7207 if (userendersurfaces)
7209 for (j = model->submodelsurfaces_start;j < model->submodelsurfaces_end;j++)
7210 bihnumleafs += model->data_surfaces[j].num_triangles;
7214 for (brushindex = 0, brush = model->brush.data_brushes + brushindex+model->firstmodelbrush;brushindex < nummodelbrushes;brushindex++, brush++)
7215 if (brush->colbrushf)
7217 for (j = model->submodelsurfaces_start;j < model->submodelsurfaces_end;j++)
7219 if (model->data_surfaces[j].texture->basematerialflags & MATERIALFLAG_MESHCOLLISIONS)
7220 bihnumleafs += model->data_surfaces[j].num_triangles + model->data_surfaces[j].num_collisiontriangles;
7222 bihnumleafs += model->data_surfaces[j].num_collisiontriangles;
7229 // allocate the memory for the BIH leaf nodes
7230 bihleafs = (bih_leaf_t *)Mem_Alloc(loadmodel->mempool, sizeof(bih_leaf_t) * bihnumleafs);
7232 // now populate the BIH leaf nodes
7235 // add render surfaces
7236 renderelement3i = model->surfmesh.data_element3i;
7237 rendervertex3f = model->surfmesh.data_vertex3f;
7238 for (j = model->submodelsurfaces_start; j < model->submodelsurfaces_end; j++)
7240 surface = model->data_surfaces + j;
7241 for (triangleindex = 0, e = renderelement3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
7243 if (!userendersurfaces && !(surface->texture->basematerialflags & MATERIALFLAG_MESHCOLLISIONS))
7245 bihleafs[bihleafindex].type = BIH_RENDERTRIANGLE;
7246 bihleafs[bihleafindex].textureindex = surface->texture - model->data_textures;
7247 bihleafs[bihleafindex].surfaceindex = surface - model->data_surfaces;
7248 bihleafs[bihleafindex].itemindex = triangleindex+surface->num_firsttriangle;
7249 bihleafs[bihleafindex].mins[0] = min(rendervertex3f[3*e[0]+0], min(rendervertex3f[3*e[1]+0], rendervertex3f[3*e[2]+0])) - 1;
7250 bihleafs[bihleafindex].mins[1] = min(rendervertex3f[3*e[0]+1], min(rendervertex3f[3*e[1]+1], rendervertex3f[3*e[2]+1])) - 1;
7251 bihleafs[bihleafindex].mins[2] = min(rendervertex3f[3*e[0]+2], min(rendervertex3f[3*e[1]+2], rendervertex3f[3*e[2]+2])) - 1;
7252 bihleafs[bihleafindex].maxs[0] = max(rendervertex3f[3*e[0]+0], max(rendervertex3f[3*e[1]+0], rendervertex3f[3*e[2]+0])) + 1;
7253 bihleafs[bihleafindex].maxs[1] = max(rendervertex3f[3*e[0]+1], max(rendervertex3f[3*e[1]+1], rendervertex3f[3*e[2]+1])) + 1;
7254 bihleafs[bihleafindex].maxs[2] = max(rendervertex3f[3*e[0]+2], max(rendervertex3f[3*e[1]+2], rendervertex3f[3*e[2]+2])) + 1;
7259 if (!userendersurfaces)
7261 // add collision brushes
7262 for (brushindex = 0, brush = model->brush.data_brushes + brushindex+model->firstmodelbrush;brushindex < nummodelbrushes;brushindex++, brush++)
7264 if (!brush->colbrushf)
7266 bihleafs[bihleafindex].type = BIH_BRUSH;
7267 bihleafs[bihleafindex].textureindex = brush->texture - model->data_textures;
7268 bihleafs[bihleafindex].surfaceindex = -1;
7269 bihleafs[bihleafindex].itemindex = brushindex+model->firstmodelbrush;
7270 VectorCopy(brush->colbrushf->mins, bihleafs[bihleafindex].mins);
7271 VectorCopy(brush->colbrushf->maxs, bihleafs[bihleafindex].maxs);
7275 // add collision surfaces
7276 collisionelement3i = model->brush.data_collisionelement3i;
7277 collisionvertex3f = model->brush.data_collisionvertex3f;
7278 for (j = model->submodelsurfaces_start; j < model->submodelsurfaces_end; j++)
7280 surface = model->data_surfaces + j;
7281 for (triangleindex = 0, e = collisionelement3i + 3*surface->num_firstcollisiontriangle;triangleindex < surface->num_collisiontriangles;triangleindex++, e += 3)
7283 bihleafs[bihleafindex].type = BIH_COLLISIONTRIANGLE;
7284 bihleafs[bihleafindex].textureindex = surface->texture - model->data_textures;
7285 bihleafs[bihleafindex].surfaceindex = surface - model->data_surfaces;
7286 bihleafs[bihleafindex].itemindex = triangleindex+surface->num_firstcollisiontriangle;
7287 bihleafs[bihleafindex].mins[0] = min(collisionvertex3f[3*e[0]+0], min(collisionvertex3f[3*e[1]+0], collisionvertex3f[3*e[2]+0])) - 1;
7288 bihleafs[bihleafindex].mins[1] = min(collisionvertex3f[3*e[0]+1], min(collisionvertex3f[3*e[1]+1], collisionvertex3f[3*e[2]+1])) - 1;
7289 bihleafs[bihleafindex].mins[2] = min(collisionvertex3f[3*e[0]+2], min(collisionvertex3f[3*e[1]+2], collisionvertex3f[3*e[2]+2])) - 1;
7290 bihleafs[bihleafindex].maxs[0] = max(collisionvertex3f[3*e[0]+0], max(collisionvertex3f[3*e[1]+0], collisionvertex3f[3*e[2]+0])) + 1;
7291 bihleafs[bihleafindex].maxs[1] = max(collisionvertex3f[3*e[0]+1], max(collisionvertex3f[3*e[1]+1], collisionvertex3f[3*e[2]+1])) + 1;
7292 bihleafs[bihleafindex].maxs[2] = max(collisionvertex3f[3*e[0]+2], max(collisionvertex3f[3*e[1]+2], collisionvertex3f[3*e[2]+2])) + 1;
7298 // allocate buffers for the produced and temporary data
7299 bihmaxnodes = bihnumleafs + 1;
7300 bihnodes = (bih_node_t *)Mem_Alloc(loadmodel->mempool, sizeof(bih_node_t) * bihmaxnodes);
7301 temp_leafsort = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int) * bihnumleafs * 2);
7302 temp_leafsortscratch = temp_leafsort + bihnumleafs;
7305 BIH_Build(out, bihnumleafs, bihleafs, bihmaxnodes, bihnodes, temp_leafsort, temp_leafsortscratch);
7307 // we're done with the temporary data
7308 Mem_Free(temp_leafsort);
7310 // resize the BIH nodes array if it over-allocated
7311 if (out->maxnodes > out->numnodes)
7313 out->maxnodes = out->numnodes;
7314 out->nodes = (bih_node_t *)Mem_Realloc(loadmodel->mempool, out->nodes, out->numnodes * sizeof(bih_node_t));
7320 static int Mod_Q3BSP_SuperContentsFromNativeContents(int nativecontents)
7322 int supercontents = 0;
7323 if (nativecontents & CONTENTSQ3_SOLID)
7324 supercontents |= SUPERCONTENTS_SOLID;
7325 if (nativecontents & CONTENTSQ3_WATER)
7326 supercontents |= SUPERCONTENTS_WATER;
7327 if (nativecontents & CONTENTSQ3_SLIME)
7328 supercontents |= SUPERCONTENTS_SLIME;
7329 if (nativecontents & CONTENTSQ3_LAVA)
7330 supercontents |= SUPERCONTENTS_LAVA;
7331 if (nativecontents & CONTENTSQ3_BODY)
7332 supercontents |= SUPERCONTENTS_BODY;
7333 if (nativecontents & CONTENTSQ3_CORPSE)
7334 supercontents |= SUPERCONTENTS_CORPSE;
7335 if (nativecontents & CONTENTSQ3_NODROP)
7336 supercontents |= SUPERCONTENTS_NODROP;
7337 if (nativecontents & CONTENTSQ3_PLAYERCLIP)
7338 supercontents |= SUPERCONTENTS_PLAYERCLIP;
7339 if (nativecontents & CONTENTSQ3_MONSTERCLIP)
7340 supercontents |= SUPERCONTENTS_MONSTERCLIP;
7341 if (nativecontents & CONTENTSQ3_DONOTENTER)
7342 supercontents |= SUPERCONTENTS_DONOTENTER;
7343 if (nativecontents & CONTENTSQ3_BOTCLIP)
7344 supercontents |= SUPERCONTENTS_BOTCLIP;
7345 if (!(nativecontents & CONTENTSQ3_TRANSLUCENT))
7346 supercontents |= SUPERCONTENTS_OPAQUE;
7347 return supercontents;
7350 static int Mod_Q3BSP_NativeContentsFromSuperContents(int supercontents)
7352 int nativecontents = 0;
7353 if (supercontents & SUPERCONTENTS_SOLID)
7354 nativecontents |= CONTENTSQ3_SOLID;
7355 if (supercontents & SUPERCONTENTS_WATER)
7356 nativecontents |= CONTENTSQ3_WATER;
7357 if (supercontents & SUPERCONTENTS_SLIME)
7358 nativecontents |= CONTENTSQ3_SLIME;
7359 if (supercontents & SUPERCONTENTS_LAVA)
7360 nativecontents |= CONTENTSQ3_LAVA;
7361 if (supercontents & SUPERCONTENTS_BODY)
7362 nativecontents |= CONTENTSQ3_BODY;
7363 if (supercontents & SUPERCONTENTS_CORPSE)
7364 nativecontents |= CONTENTSQ3_CORPSE;
7365 if (supercontents & SUPERCONTENTS_NODROP)
7366 nativecontents |= CONTENTSQ3_NODROP;
7367 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
7368 nativecontents |= CONTENTSQ3_PLAYERCLIP;
7369 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
7370 nativecontents |= CONTENTSQ3_MONSTERCLIP;
7371 if (supercontents & SUPERCONTENTS_DONOTENTER)
7372 nativecontents |= CONTENTSQ3_DONOTENTER;
7373 if (supercontents & SUPERCONTENTS_BOTCLIP)
7374 nativecontents |= CONTENTSQ3_BOTCLIP;
7375 if (!(supercontents & SUPERCONTENTS_OPAQUE))
7376 nativecontents |= CONTENTSQ3_TRANSLUCENT;
7377 return nativecontents;
7380 static void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
7385 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
7386 node = node->children[1];
7388 numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
7389 if (loadmodel->brush.num_leafs < numleafs)
7390 loadmodel->brush.num_leafs = numleafs;
7393 static void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
7396 q3dheader_t *header;
7397 float corner[3], yawradius, modelradius;
7399 mod->modeldatatypestring = "Q3BSP";
7401 mod->type = mod_brushq3;
7402 mod->brush.ishlbsp = false;
7403 mod->brush.isbsp2rmqe = false;
7404 mod->brush.isbsp2 = false;
7405 mod->brush.isq2bsp = false;
7406 mod->brush.isq3bsp = true;
7407 mod->brush.skymasking = true;
7408 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
7411 header = (q3dheader_t *)buffer;
7412 if((char *) bufferend < (char *) buffer + sizeof(q3dheader_t))
7413 Host_Error("Mod_Q3BSP_Load: %s is smaller than its header", mod->name);
7415 i = LittleLong(header->version);
7416 if (i != Q3BSPVERSION && i != Q3BSPVERSION_IG && i != Q3BSPVERSION_LIVE)
7417 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
7419 mod->soundfromcenter = true;
7420 mod->TraceBox = Mod_CollisionBIH_TraceBox;
7421 mod->TraceBrush = Mod_CollisionBIH_TraceBrush;
7422 mod->TraceLine = Mod_CollisionBIH_TraceLine;
7423 mod->TracePoint = Mod_CollisionBIH_TracePoint;
7424 mod->PointSuperContents = Mod_CollisionBIH_PointSuperContents;
7425 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
7426 mod->brush.TraceLineOfSight = Mod_Q3BSP_TraceLineOfSight;
7427 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
7428 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
7429 mod->brush.GetPVS = Mod_BSP_GetPVS;
7430 mod->brush.FatPVS = Mod_BSP_FatPVS;
7431 mod->brush.BoxTouchingPVS = Mod_BSP_BoxTouchingPVS;
7432 mod->brush.BoxTouchingLeafPVS = Mod_BSP_BoxTouchingLeafPVS;
7433 mod->brush.BoxTouchingVisibleLeafs = Mod_BSP_BoxTouchingVisibleLeafs;
7434 mod->brush.FindBoxClusters = Mod_BSP_FindBoxClusters;
7435 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
7436 mod->brush.FindNonSolidLocation = Mod_BSP_FindNonSolidLocation;
7437 mod->brush.AmbientSoundLevelsForPoint = NULL;
7438 mod->brush.RoundUpToHullSize = NULL;
7439 mod->brush.PointInLeaf = Mod_BSP_PointInLeaf;
7440 mod->Draw = R_Mod_Draw;
7441 mod->DrawDepth = R_Mod_DrawDepth;
7442 mod->DrawDebug = R_Mod_DrawDebug;
7443 mod->DrawPrepass = R_Mod_DrawPrepass;
7444 mod->GetLightInfo = R_Mod_GetLightInfo;
7445 mod->CompileShadowMap = R_Mod_CompileShadowMap;
7446 mod->DrawShadowMap = R_Mod_DrawShadowMap;
7447 mod->DrawLight = R_Mod_DrawLight;
7449 mod_base = (unsigned char *)header;
7451 // swap all the lumps
7452 header->ident = LittleLong(header->ident);
7453 header->version = LittleLong(header->version);
7454 lumps = (header->version == Q3BSPVERSION_LIVE) ? Q3HEADER_LUMPS_LIVE : Q3HEADER_LUMPS;
7455 for (i = 0;i < lumps;i++)
7457 j = (header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs));
7458 if((char *) bufferend < (char *) buffer + j)
7459 Host_Error("Mod_Q3BSP_Load: %s has a lump that starts outside the file!", mod->name);
7460 j += (header->lumps[i].filelen = LittleLong(header->lumps[i].filelen));
7461 if((char *) bufferend < (char *) buffer + j)
7462 Host_Error("Mod_Q3BSP_Load: %s has a lump that ends outside the file!", mod->name);
7465 * NO, do NOT clear them!
7466 * they contain actual data referenced by other stuff.
7467 * Instead, before using the advertisements lump, check header->versio
7469 * Sorry, but otherwise it breaks memory of the first lump.
7470 for (i = lumps;i < Q3HEADER_LUMPS_MAX;i++)
7472 header->lumps[i].fileofs = 0;
7473 header->lumps[i].filelen = 0;
7477 mod->brush.qw_md4sum = 0;
7478 mod->brush.qw_md4sum2 = 0;
7479 for (i = 0;i < lumps;i++)
7481 if (i == Q3LUMP_ENTITIES)
7483 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
7484 if (i == Q3LUMP_PVS || i == Q3LUMP_LEAFS || i == Q3LUMP_NODES)
7486 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
7488 // all this checksumming can take a while, so let's send keepalives here too
7489 CL_KeepaliveMessage(false);
7492 // allocate a texture pool if we need it
7493 if (mod->texturepool == NULL)
7494 mod->texturepool = R_AllocTexturePool();
7496 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
7497 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
7498 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
7499 if (header->version == Q3BSPVERSION_IG)
7500 Mod_Q3BSP_LoadBrushSides_IG(&header->lumps[Q3LUMP_BRUSHSIDES]);
7502 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
7503 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
7504 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
7505 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
7506 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
7507 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS], &header->lumps[Q3LUMP_FACES]);
7508 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
7509 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
7510 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
7511 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
7512 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
7513 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
7514 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
7515 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
7516 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
7518 // the MakePortals code works fine on the q3bsp data as well
7519 if (mod_bsp_portalize.integer)
7520 Mod_BSP_MakePortals();
7522 // FIXME: shader alpha should replace r_wateralpha support in q3bsp
7523 loadmodel->brush.supportwateralpha = true;
7525 loadmodel->brush.num_leafs = 0;
7526 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
7528 if (loadmodel->brush.numsubmodels)
7529 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
7532 mod->modelsurfaces_sorted = (int*)Mem_Alloc(loadmodel->mempool, mod->num_surfaces * sizeof(*mod->modelsurfaces_sorted));
7533 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
7538 // duplicate the basic information
7539 dpsnprintf(name, sizeof(name), "*%i", i);
7540 mod = Mod_FindName(name, loadmodel->name);
7541 // copy the base model to this one
7543 // rename the clone back to its proper name
7544 strlcpy(mod->name, name, sizeof(mod->name));
7545 mod->brush.parentmodel = loadmodel;
7546 // textures and memory belong to the main model
7547 mod->texturepool = NULL;
7548 mod->mempool = NULL;
7549 mod->brush.GetPVS = NULL;
7550 mod->brush.FatPVS = NULL;
7551 mod->brush.BoxTouchingPVS = NULL;
7552 mod->brush.BoxTouchingLeafPVS = NULL;
7553 mod->brush.BoxTouchingVisibleLeafs = NULL;
7554 mod->brush.FindBoxClusters = NULL;
7555 mod->brush.LightPoint = NULL;
7556 mod->brush.AmbientSoundLevelsForPoint = NULL;
7558 mod->brush.submodel = i;
7559 if (loadmodel->brush.submodels)
7560 loadmodel->brush.submodels[i] = mod;
7562 // make the model surface list (used by shadowing/lighting)
7563 mod->submodelsurfaces_start = mod->brushq3.data_models[i].firstface;
7564 mod->submodelsurfaces_end = mod->brushq3.data_models[i].firstface + mod->brushq3.data_models[i].numfaces;
7565 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
7566 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
7568 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
7569 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
7570 // enlarge the bounding box to enclose all geometry of this model,
7571 // because q3map2 sometimes lies (mostly to affect the lightgrid),
7572 // which can in turn mess up the farclip (as well as culling when
7573 // outside the level - an unimportant concern)
7575 //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]);
7576 for (j = mod->submodelsurfaces_start;j < mod->submodelsurfaces_end;j++)
7578 const msurface_t *surface = mod->data_surfaces + j;
7579 const float *v = mod->surfmesh.data_vertex3f + 3 * surface->num_firstvertex;
7581 if (!surface->num_vertices)
7583 for (k = 0;k < surface->num_vertices;k++, v += 3)
7585 mod->normalmins[0] = min(mod->normalmins[0], v[0]);
7586 mod->normalmins[1] = min(mod->normalmins[1], v[1]);
7587 mod->normalmins[2] = min(mod->normalmins[2], v[2]);
7588 mod->normalmaxs[0] = max(mod->normalmaxs[0], v[0]);
7589 mod->normalmaxs[1] = max(mod->normalmaxs[1], v[1]);
7590 mod->normalmaxs[2] = max(mod->normalmaxs[2], v[2]);
7593 //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]);
7594 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
7595 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
7596 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
7597 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
7598 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
7599 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
7600 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
7601 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
7602 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
7603 mod->yawmins[2] = mod->normalmins[2];
7604 mod->yawmaxs[2] = mod->normalmaxs[2];
7605 mod->radius = modelradius;
7606 mod->radius2 = modelradius * modelradius;
7608 Mod_SetDrawSkyAndWater(mod);
7609 Mod_MakeCollisionBIH(mod, false, &mod->collision_bih);
7610 Mod_MakeCollisionBIH(mod, true, &mod->render_bih);
7612 // generate VBOs and other shared data before cloning submodels
7618 // make the model surface list (used by shadowing/lighting)
7619 Mod_MakeSortedSurfaces(loadmodel);
7621 if (mod_q3bsp_sRGBlightmaps.integer)
7623 if (vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
7625 // actually we do in sRGB fallback with sRGB lightmaps: Image_sRGBFloatFromLinear_Lightmap(Image_LinearFloatFromsRGBFloat(x))
7626 // neutral point is at Image_sRGBFloatFromLinearFloat(0.5)
7627 // so we need to map Image_sRGBFloatFromLinearFloat(0.5) to 0.5
7628 // factor is 0.5 / Image_sRGBFloatFromLinearFloat(0.5)
7629 //loadmodel->lightmapscale *= 0.679942f; // fixes neutral level
7631 else // if this is NOT set, regular rendering looks right by this requirement anyway
7634 // we want color 1 to do the same as without sRGB
7635 // so, we want to map 1 to Image_LinearFloatFromsRGBFloat(2) instead of to 2
7636 loadmodel->lightmapscale *= 2.476923f; // fixes max level
7639 // neutral level 0.5 gets uploaded as sRGB and becomes Image_LinearFloatFromsRGBFloat(0.5)
7640 // we need to undo that
7641 loadmodel->lightmapscale *= 2.336f; // fixes neutral level
7645 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);
7648 void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
7650 int i = LittleLong(((int *)buffer)[1]);
7651 if (i == Q3BSPVERSION || i == Q3BSPVERSION_IG || i == Q3BSPVERSION_LIVE)
7652 Mod_Q3BSP_Load(mod,buffer, bufferend);
7653 else if (i == Q2BSPVERSION)
7654 Mod_Q2BSP_Load(mod,buffer, bufferend);
7656 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i", i);
7659 static void Mod_VBSP_LoadEntities(sizebuf_t *sb)
7661 loadmodel->brush.entities = NULL;
7664 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, sb->cursize + 1);
7665 MSG_ReadBytes(sb, sb->cursize, (unsigned char *)loadmodel->brush.entities);
7666 loadmodel->brush.entities[sb->cursize] = 0;
7669 static void Mod_VBSP_LoadVertexes(sizebuf_t *sb)
7673 int structsize = 12;
7675 if (sb->cursize % structsize)
7676 Host_Error("Mod_VBSP_LoadVertexes: funny lump size in %s",loadmodel->name);
7677 count = sb->cursize / structsize;
7678 out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
7680 loadmodel->brushq1.vertexes = out;
7681 loadmodel->brushq1.numvertexes = count;
7683 for ( i=0 ; i<count ; i++, out++)
7685 out->position[0] = MSG_ReadLittleFloat(sb);
7686 out->position[1] = MSG_ReadLittleFloat(sb);
7687 out->position[2] = MSG_ReadLittleFloat(sb);
7691 static void Mod_VBSP_LoadEdges(sizebuf_t *sb)
7697 if (sb->cursize % structsize)
7698 Host_Error("Mod_VBSP_LoadEdges: funny lump size in %s",loadmodel->name);
7699 count = sb->cursize / structsize;
7700 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
7702 loadmodel->brushq1.edges = out;
7703 loadmodel->brushq1.numedges = count;
7705 for ( i=0 ; i<count ; i++, out++)
7707 out->v[0] = (unsigned short)MSG_ReadLittleShort(sb);
7708 out->v[1] = (unsigned short)MSG_ReadLittleShort(sb);
7710 if ((int)out->v[0] >= loadmodel->brushq1.numvertexes || (int)out->v[1] >= loadmodel->brushq1.numvertexes)
7712 Con_Printf("Mod_VBSP_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);
7713 if(!loadmodel->brushq1.numvertexes)
7714 Host_Error("Mod_VBSP_LoadEdges: %s has edges but no vertexes, cannot fix\n", loadmodel->name);
7722 static void Mod_VBSP_LoadSurfedges(sizebuf_t *sb)
7727 if (sb->cursize % structsize)
7728 Host_Error("Mod_VBSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
7729 loadmodel->brushq1.numsurfedges = sb->cursize / structsize;
7730 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
7732 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
7733 loadmodel->brushq1.surfedges[i] = MSG_ReadLittleLong(sb);
7736 static void Mod_VBSP_LoadTextures(sizebuf_t *sb)
7738 Con_Printf(CON_WARN "Mod_VBSP_LoadTextures: Don't know how to do this yet\n");
7741 static void Mod_VBSP_LoadPlanes(sizebuf_t *sb)
7745 int structsize = 20;
7747 if (sb->cursize % structsize)
7748 Host_Error("Mod_VBSP_LoadPlanes: funny lump size in %s", loadmodel->name);
7749 loadmodel->brush.num_planes = sb->cursize / structsize;
7750 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
7752 for (i = 0;i < loadmodel->brush.num_planes;i++, out++)
7754 out->normal[0] = MSG_ReadLittleFloat(sb);
7755 out->normal[1] = MSG_ReadLittleFloat(sb);
7756 out->normal[2] = MSG_ReadLittleFloat(sb);
7757 out->dist = MSG_ReadLittleFloat(sb);
7758 MSG_ReadLittleLong(sb); // type is not used, we use PlaneClassify
7763 static void Mod_VBSP_LoadTexinfo(sizebuf_t *sb)
7766 int i, j, k, count, miptex;
7767 int structsize = 72;
7769 if (sb->cursize % structsize)
7770 Host_Error("Mod_VBSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
7771 count = sb->cursize / structsize;
7772 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
7774 loadmodel->brushq1.texinfo = out;
7775 loadmodel->brushq1.numtexinfo = count;
7777 for (i = 0;i < count;i++, out++)
7779 for (k = 0;k < 2;k++)
7780 for (j = 0;j < 4;j++)
7781 out->vecs[k][j] = MSG_ReadLittleFloat(sb);
7783 for (k = 0;k < 2;k++)
7784 for (j = 0;j < 4;j++)
7785 MSG_ReadLittleFloat(sb); // TODO lightmapVecs
7787 out->q1flags = MSG_ReadLittleLong(sb);
7788 miptex = MSG_ReadLittleLong(sb);
7790 if (out->q1flags & TEX_SPECIAL)
7792 // if texture chosen is NULL or the shader needs a lightmap,
7793 // force to notexture water shader
7794 out->textureindex = loadmodel->num_textures - 1;
7798 // if texture chosen is NULL, force to notexture
7799 out->textureindex = loadmodel->num_textures - 2;
7801 // see if the specified miptex is valid and try to use it instead
7802 if (loadmodel->data_textures)
7804 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
7805 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
7807 out->textureindex = miptex;
7812 static void Mod_VBSP_LoadFaces(sizebuf_t *sb)
7814 msurface_t *surface;
7815 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber, lightmapsize, totallightmapsamples, lightmapoffset, texinfoindex;
7816 float texmins[2], texmaxs[2], val;
7817 rtexture_t *lightmaptexture, *deluxemaptexture;
7819 int structsize = 56;
7821 if (sb->cursize % structsize)
7822 Host_Error("Mod_VBSP_LoadFaces: funny lump size in %s",loadmodel->name);
7823 count = sb->cursize / structsize;
7824 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
7825 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
7827 loadmodel->num_surfaces = count;
7829 loadmodel->brushq1.firstrender = true;
7830 loadmodel->brushq1.lightmapupdateflags = (unsigned char *)Mem_Alloc(loadmodel->mempool, count*sizeof(unsigned char));
7834 for (surfacenum = 0;surfacenum < count;surfacenum++)
7836 numedges = BuffLittleShort(sb->data + structsize * surfacenum + 8);
7837 totalverts += numedges;
7838 totaltris += numedges - 2;
7841 Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false);
7843 lightmaptexture = NULL;
7844 deluxemaptexture = r_texture_blanknormalmap;
7846 lightmapsize = bound(256, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d);
7847 totallightmapsamples = 0;
7851 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
7853 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
7854 planenum = (unsigned short)MSG_ReadLittleShort(sb);
7855 /*side = */MSG_ReadLittleShort(sb); // TODO support onNode?
7856 firstedge = MSG_ReadLittleLong(sb);
7857 numedges = (unsigned short)MSG_ReadLittleShort(sb);
7858 texinfoindex = (unsigned short)MSG_ReadLittleShort(sb);
7859 MSG_ReadLittleLong(sb); // skipping over dispinfo and surfaceFogVolumeID, both short
7860 for (i = 0;i < MAXLIGHTMAPS;i++)
7861 surface->lightmapinfo->styles[i] = MSG_ReadByte(sb);
7862 lightmapoffset = MSG_ReadLittleLong(sb);
7864 // FIXME: validate edges, texinfo, etc?
7865 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)
7866 Host_Error("Mod_VBSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)", firstedge, numedges, loadmodel->brushq1.numsurfedges);
7867 if ((unsigned int) texinfoindex >= (unsigned int) loadmodel->brushq1.numtexinfo)
7868 Host_Error("Mod_VBSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)", texinfoindex, loadmodel->brushq1.numtexinfo);
7869 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
7870 Host_Error("Mod_VBSP_LoadFaces: invalid plane index %i (model has %i planes)", planenum, loadmodel->brush.num_planes);
7872 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + texinfoindex;
7873 surface->texture = loadmodel->data_textures + surface->lightmapinfo->texinfo->textureindex;
7875 // Q2BSP doesn't use lightmaps on sky or warped surfaces (water), but still has a lightofs of 0
7876 if (lightmapoffset == 0 && (surface->texture->q2flags & (Q2SURF_SKY | Q2SURF_WARP)))
7877 lightmapoffset = -1;
7879 //surface->flags = surface->texture->flags;
7880 //if (LittleShort(in->side))
7881 // surface->flags |= SURF_PLANEBACK;
7882 //surface->plane = loadmodel->brush.data_planes + planenum;
7884 surface->num_firstvertex = totalverts;
7885 surface->num_vertices = numedges;
7886 surface->num_firsttriangle = totaltris;
7887 surface->num_triangles = numedges - 2;
7888 totalverts += numedges;
7889 totaltris += numedges - 2;
7891 // convert edges back to a normal polygon
7892 for (i = 0;i < surface->num_vertices;i++)
7894 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
7896 // note: the q1bsp format does not allow a 0 surfedge (it would have no negative counterpart)
7898 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
7900 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
7901 s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
7902 t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
7903 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
7904 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
7905 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
7906 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
7907 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
7910 for (i = 0;i < surface->num_triangles;i++)
7912 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
7913 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
7914 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
7917 // compile additional data about the surface geometry
7918 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);
7919 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);
7920 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
7922 // generate surface extents information
7923 texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
7924 texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
7925 for (i = 1;i < surface->num_vertices;i++)
7927 for (j = 0;j < 2;j++)
7929 val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
7930 texmins[j] = min(texmins[j], val);
7931 texmaxs[j] = max(texmaxs[j], val);
7934 for (i = 0;i < 2;i++)
7936 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
7937 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
7940 smax = surface->lightmapinfo->extents[0] >> 4;
7941 tmax = surface->lightmapinfo->extents[1] >> 4;
7942 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
7943 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
7946 surface->lightmaptexture = NULL;
7947 surface->deluxemaptexture = r_texture_blanknormalmap;
7948 if (lightmapoffset == -1)
7950 surface->lightmapinfo->samples = NULL;
7952 // give non-lightmapped water a 1x white lightmap
7953 if (!loadmodel->brush.isq2bsp && surface->texture->name[0] == '*' && (surface->lightmapinfo->texinfo->q1flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
7955 surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
7956 surface->lightmapinfo->styles[0] = 0;
7957 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
7962 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + lightmapoffset;
7964 // check if we should apply a lightmap to this
7965 if (!(surface->lightmapinfo->texinfo->q1flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
7967 if (ssize > 256 || tsize > 256)
7968 Host_Error("Bad surface extents");
7970 if (lightmapsize < ssize)
7971 lightmapsize = ssize;
7972 if (lightmapsize < tsize)
7973 lightmapsize = tsize;
7975 totallightmapsamples += ssize*tsize;
7977 // force lightmap upload on first time seeing the surface
7979 // additionally this is used by the later code to see if a
7980 // lightmap is needed on this surface (rather than duplicating the
7982 loadmodel->brushq1.lightmapupdateflags[surfacenum] = true;
7983 loadmodel->lit = true;
7987 // small maps (such as ammo boxes especially) don't need big lightmap
7988 // textures, so this code tries to guess a good size based on
7989 // totallightmapsamples (size of the lightmaps lump basically), as well as
7990 // trying to max out the size if there is a lot of lightmap data to store
7991 // additionally, never choose a lightmapsize that is smaller than the
7992 // largest surface encountered (as it would fail)
7994 for (lightmapsize = 64; (lightmapsize < i) && (lightmapsize < bound(128, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d)) && (totallightmapsamples > lightmapsize*lightmapsize); lightmapsize*=2)
7997 // now that we've decided the lightmap texture size, we can do the rest
7998 if (cls.state != ca_dedicated)
8000 int stainmapsize = 0;
8001 mod_alloclightmap_state_t allocState;
8003 Mod_AllocLightmap_Init(&allocState, loadmodel->mempool, lightmapsize, lightmapsize);
8004 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
8006 int iu, iv, lightmapx = 0, lightmapy = 0;
8007 float u, v, ubase, vbase, uscale, vscale;
8009 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
8012 smax = surface->lightmapinfo->extents[0] >> 4;
8013 tmax = surface->lightmapinfo->extents[1] >> 4;
8014 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
8015 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
8016 stainmapsize += ssize * tsize * 3;
8018 if (!lightmaptexture || !Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy))
8020 // allocate a texture pool if we need it
8021 if (loadmodel->texturepool == NULL)
8022 loadmodel->texturepool = R_AllocTexturePool();
8023 // could not find room, make a new lightmap
8024 loadmodel->brushq3.num_mergedlightmaps = lightmapnumber + 1;
8025 loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Realloc(loadmodel->mempool, loadmodel->brushq3.data_lightmaps, loadmodel->brushq3.num_mergedlightmaps * sizeof(loadmodel->brushq3.data_lightmaps[0]));
8026 loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Realloc(loadmodel->mempool, loadmodel->brushq3.data_deluxemaps, loadmodel->brushq3.num_mergedlightmaps * sizeof(loadmodel->brushq3.data_deluxemaps[0]));
8027 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);
8028 if (loadmodel->brushq1.nmaplightdata)
8029 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);
8031 Mod_AllocLightmap_Reset(&allocState);
8032 Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy);
8034 surface->lightmaptexture = lightmaptexture;
8035 surface->deluxemaptexture = deluxemaptexture;
8036 surface->lightmapinfo->lightmaporigin[0] = lightmapx;
8037 surface->lightmapinfo->lightmaporigin[1] = lightmapy;
8039 uscale = 1.0f / (float)lightmapsize;
8040 vscale = 1.0f / (float)lightmapsize;
8041 ubase = lightmapx * uscale;
8042 vbase = lightmapy * vscale;
8044 for (i = 0;i < surface->num_vertices;i++)
8046 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);
8047 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);
8048 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
8049 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
8050 // LadyHavoc: calc lightmap data offset for vertex lighting to use
8053 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
8057 if (cl_stainmaps.integer)
8059 // allocate stainmaps for permanent marks on walls and clear white
8060 unsigned char *stainsamples = NULL;
8061 stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, stainmapsize);
8062 memset(stainsamples, 255, stainmapsize);
8064 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
8066 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
8068 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
8069 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
8070 surface->lightmapinfo->stainsamples = stainsamples;
8071 stainsamples += ssize * tsize * 3;
8076 // generate ushort elements array if possible
8077 if (loadmodel->surfmesh.data_element3s)
8078 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
8079 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
8083 // Cloudwalk: Wasn't sober when I wrote this. I screamed and ran away at the face loader
8084 void Mod_VBSP_Load(model_t *mod, void *buffer, void *bufferend)
8086 static cvar_t *testing = NULL; // TEMPORARY
8089 sizebuf_t lumpsb[HL2HEADER_LUMPS];
8091 if(!testing || !testing->integer)
8094 testing = Cvar_Get(&cvars_all, "mod_bsp_vbsptest", "0", CF_CLIENT | CF_SERVER, "uhhh");
8095 Host_Error("Mod_VBSP_Load: not yet fully implemented. Change the now-generated \"mod_bsp_vbsptest\" to 1 if you wish to test this");
8100 MSG_InitReadBuffer(&sb, (unsigned char *)buffer, (unsigned char *)bufferend - (unsigned char *)buffer);
8102 mod->type = mod_brushhl2;
8104 MSG_ReadLittleLong(&sb);
8105 MSG_ReadLittleLong(&sb); // TODO version check
8107 mod->modeldatatypestring = "VBSP";
8110 for (i = 0; i < HL2HEADER_LUMPS; i++)
8112 int offset = MSG_ReadLittleLong(&sb);
8113 int size = MSG_ReadLittleLong(&sb);
8114 MSG_ReadLittleLong(&sb); // TODO support version
8115 MSG_ReadLittleLong(&sb); // TODO support ident
8116 if (offset < 0 || offset + size > sb.cursize)
8117 Host_Error("Mod_VBSP_Load: %s has invalid lump %i (offset %i, size %i, file size %i)\n", mod->name, i, offset, size, (int)sb.cursize);
8118 MSG_InitReadBuffer(&lumpsb[i], sb.data + offset, size);
8121 MSG_ReadLittleLong(&sb); // TODO support revision field
8123 mod->soundfromcenter = true;
8124 mod->TraceBox = Mod_CollisionBIH_TraceBox;
8125 mod->TraceBrush = Mod_CollisionBIH_TraceBrush;
8126 mod->TraceLine = Mod_CollisionBIH_TraceLine;
8127 mod->TracePoint = Mod_CollisionBIH_TracePoint;
8128 mod->PointSuperContents = Mod_CollisionBIH_PointSuperContents;
8129 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
8130 mod->brush.TraceLineOfSight = Mod_Q3BSP_TraceLineOfSight; // probably not correct
8131 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents; // probably not correct
8132 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents; // probably not correct
8133 mod->brush.GetPVS = Mod_BSP_GetPVS;
8134 mod->brush.FatPVS = Mod_BSP_FatPVS;
8135 mod->brush.BoxTouchingPVS = Mod_BSP_BoxTouchingPVS;
8136 mod->brush.BoxTouchingLeafPVS = Mod_BSP_BoxTouchingLeafPVS;
8137 mod->brush.BoxTouchingVisibleLeafs = Mod_BSP_BoxTouchingVisibleLeafs;
8138 mod->brush.FindBoxClusters = Mod_BSP_FindBoxClusters;
8139 mod->brush.LightPoint = Mod_Q3BSP_LightPoint; // probably not correct
8140 mod->brush.FindNonSolidLocation = Mod_BSP_FindNonSolidLocation;
8141 mod->brush.AmbientSoundLevelsForPoint = NULL;
8142 mod->brush.RoundUpToHullSize = NULL;
8143 mod->brush.PointInLeaf = Mod_BSP_PointInLeaf;
8144 mod->Draw = R_Mod_Draw;
8145 mod->DrawDepth = R_Mod_DrawDepth;
8146 mod->DrawDebug = R_Mod_DrawDebug;
8147 mod->DrawPrepass = R_Mod_DrawPrepass;
8148 mod->GetLightInfo = R_Mod_GetLightInfo;
8149 mod->CompileShadowMap = R_Mod_CompileShadowMap;
8150 mod->DrawShadowMap = R_Mod_DrawShadowMap;
8151 mod->DrawLight = R_Mod_DrawLight;
8153 // allocate a texture pool if we need it
8154 if (mod->texturepool == NULL)
8155 mod->texturepool = R_AllocTexturePool();
8157 Mod_VBSP_LoadEntities(&lumpsb[HL2LUMP_ENTITIES]);
8158 Mod_VBSP_LoadVertexes(&lumpsb[HL2LUMP_VERTEXES]);
8159 Mod_VBSP_LoadEdges(&lumpsb[HL2LUMP_EDGES]);
8160 Mod_VBSP_LoadSurfedges(&lumpsb[HL2LUMP_SURFEDGES]);
8161 Mod_VBSP_LoadTextures(&lumpsb[HL2LUMP_TEXDATA/*?*/]);
8162 //Mod_VBSP_LoadLighting(&lumpsb[HL2LUMP_LIGHTING]);
8163 Mod_VBSP_LoadPlanes(&lumpsb[HL2LUMP_PLANES]);
8164 Mod_VBSP_LoadTexinfo(&lumpsb[HL2LUMP_TEXINFO]);
8167 Mod_VBSP_LoadFaces(&lumpsb[HL2LUMP_FACES]);
8171 void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend)
8173 Host_Error("Mod_MAP_Load: not yet implemented");
8176 typedef struct objvertex_s
8187 static unsigned char nobsp_pvs[1] = {1};
8189 void Mod_OBJ_Load(model_t *mod, void *buffer, void *bufferend)
8191 const char *textbase = (char *)buffer, *text = textbase;
8195 char materialname[MAX_QPATH];
8196 int i, j, l, numvertices, firstvertex, firsttriangle, elementindex, vertexindex, surfacevertices, surfacetriangles, surfaceelements, submodelindex = 0;
8197 int index1, index2, index3;
8198 objvertex_t vfirst, vprev, vcurrent;
8201 int numtriangles = 0;
8202 int maxtriangles = 0;
8203 objvertex_t *vertices = NULL;
8205 int maxtextures = 0, numtextures = 0, textureindex = 0;
8206 int maxv = 0, numv = 1;
8207 int maxvt = 0, numvt = 1;
8208 int maxvn = 0, numvn = 1;
8209 char *texturenames = NULL;
8210 float dist, modelradius, modelyawradius, yawradius;
8211 float *obj_v = NULL;
8212 float *obj_vt = NULL;
8213 float *obj_vn = NULL;
8217 objvertex_t *thisvertex = NULL;
8218 int vertexhashindex;
8219 int *vertexhashtable = NULL;
8220 objvertex_t *vertexhashdata = NULL;
8221 objvertex_t *vdata = NULL;
8222 int vertexhashsize = 0;
8223 int vertexhashcount = 0;
8224 skinfile_t *skinfiles = NULL;
8225 unsigned char *data = NULL;
8226 int *submodelfirstsurface;
8227 msurface_t *tempsurface;
8228 msurface_t *tempsurfaces;
8230 memset(&vfirst, 0, sizeof(vfirst));
8231 memset(&vprev, 0, sizeof(vprev));
8232 memset(&vcurrent, 0, sizeof(vcurrent));
8234 dpsnprintf(materialname, sizeof(materialname), "%s", loadmodel->name);
8236 loadmodel->modeldatatypestring = "OBJ";
8238 loadmodel->type = mod_obj;
8239 loadmodel->soundfromcenter = true;
8240 loadmodel->TraceBox = Mod_CollisionBIH_TraceBox;
8241 loadmodel->TraceBrush = Mod_CollisionBIH_TraceBrush;
8242 loadmodel->TraceLine = Mod_CollisionBIH_TraceLine;
8243 loadmodel->TracePoint = Mod_CollisionBIH_TracePoint_Mesh;
8244 loadmodel->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
8245 loadmodel->PointSuperContents = Mod_CollisionBIH_PointSuperContents_Mesh;
8246 loadmodel->brush.TraceLineOfSight = NULL;
8247 loadmodel->brush.SuperContentsFromNativeContents = NULL;
8248 loadmodel->brush.NativeContentsFromSuperContents = NULL;
8249 loadmodel->brush.GetPVS = NULL;
8250 loadmodel->brush.FatPVS = NULL;
8251 loadmodel->brush.BoxTouchingPVS = NULL;
8252 loadmodel->brush.BoxTouchingLeafPVS = NULL;
8253 loadmodel->brush.BoxTouchingVisibleLeafs = NULL;
8254 loadmodel->brush.FindBoxClusters = NULL;
8255 loadmodel->brush.LightPoint = NULL;
8256 loadmodel->brush.FindNonSolidLocation = NULL;
8257 loadmodel->brush.AmbientSoundLevelsForPoint = NULL;
8258 loadmodel->brush.RoundUpToHullSize = NULL;
8259 loadmodel->brush.PointInLeaf = NULL;
8260 loadmodel->Draw = R_Mod_Draw;
8261 loadmodel->DrawDepth = R_Mod_DrawDepth;
8262 loadmodel->DrawDebug = R_Mod_DrawDebug;
8263 loadmodel->DrawPrepass = R_Mod_DrawPrepass;
8264 loadmodel->GetLightInfo = R_Mod_GetLightInfo;
8265 loadmodel->CompileShadowMap = R_Mod_CompileShadowMap;
8266 loadmodel->DrawShadowMap = R_Mod_DrawShadowMap;
8267 loadmodel->DrawLight = R_Mod_DrawLight;
8269 skinfiles = Mod_LoadSkinFiles();
8270 if (loadmodel->numskins < 1)
8271 loadmodel->numskins = 1;
8273 // make skinscenes for the skins (no groups)
8274 loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
8275 for (i = 0;i < loadmodel->numskins;i++)
8277 loadmodel->skinscenes[i].firstframe = i;
8278 loadmodel->skinscenes[i].framecount = 1;
8279 loadmodel->skinscenes[i].loop = true;
8280 loadmodel->skinscenes[i].framerate = 10;
8286 // we always have model 0, i.e. the first "submodel"
8287 loadmodel->brush.numsubmodels = 1;
8289 // parse the OBJ text now
8292 static char emptyarg[1] = "";
8297 for (linelen = 0;text[linelen] && text[linelen] != '\r' && text[linelen] != '\n';linelen++)
8298 line[linelen] = text[linelen];
8300 for (argc = 0;argc < 4;argc++)
8301 argv[argc] = emptyarg;
8304 while (*s == ' ' || *s == '\t')
8314 while (*s == ' ' || *s == '\t')
8324 if (argv[0][0] == '#')
8326 if (!strcmp(argv[0], "v"))
8330 maxv = max(maxv * 2, 1024);
8331 obj_v = (float *)Mem_Realloc(tempmempool, obj_v, maxv * sizeof(float[3]));
8333 if(mod_obj_orientation.integer)
8335 obj_v[numv*3+0] = atof(argv[1]);
8336 obj_v[numv*3+2] = atof(argv[2]);
8337 obj_v[numv*3+1] = atof(argv[3]);
8341 obj_v[numv*3+0] = atof(argv[1]);
8342 obj_v[numv*3+1] = atof(argv[2]);
8343 obj_v[numv*3+2] = atof(argv[3]);
8347 else if (!strcmp(argv[0], "vt"))
8351 maxvt = max(maxvt * 2, 1024);
8352 obj_vt = (float *)Mem_Realloc(tempmempool, obj_vt, maxvt * sizeof(float[2]));
8354 obj_vt[numvt*2+0] = atof(argv[1]);
8355 obj_vt[numvt*2+1] = 1-atof(argv[2]);
8358 else if (!strcmp(argv[0], "vn"))
8362 maxvn = max(maxvn * 2, 1024);
8363 obj_vn = (float *)Mem_Realloc(tempmempool, obj_vn, maxvn * sizeof(float[3]));
8365 if(mod_obj_orientation.integer)
8367 obj_vn[numvn*3+0] = atof(argv[1]);
8368 obj_vn[numvn*3+2] = atof(argv[2]);
8369 obj_vn[numvn*3+1] = atof(argv[3]);
8373 obj_vn[numvn*3+0] = atof(argv[1]);
8374 obj_vn[numvn*3+1] = atof(argv[2]);
8375 obj_vn[numvn*3+2] = atof(argv[3]);
8379 else if (!strcmp(argv[0], "f"))
8383 if (maxtextures <= numtextures)
8385 maxtextures = max(maxtextures * 2, 256);
8386 texturenames = (char *)Mem_Realloc(loadmodel->mempool, texturenames, maxtextures * MAX_QPATH);
8388 textureindex = numtextures++;
8389 strlcpy(texturenames + textureindex*MAX_QPATH, loadmodel->name, MAX_QPATH);
8391 for (j = 1;j < argc;j++)
8393 index1 = atoi(argv[j]);
8394 while(argv[j][0] && argv[j][0] != '/')
8398 index2 = atoi(argv[j]);
8399 while(argv[j][0] && argv[j][0] != '/')
8403 index3 = atoi(argv[j]);
8404 // negative refers to a recent vertex
8405 // zero means not specified
8406 // positive means an absolute vertex index
8408 index1 = numv - index1;
8410 index2 = numvt - index2;
8412 index3 = numvn - index3;
8413 vcurrent.nextindex = -1;
8414 vcurrent.textureindex = textureindex;
8415 vcurrent.submodelindex = submodelindex;
8416 if (obj_v && index1 >= 0 && index1 < numv)
8417 VectorCopy(obj_v + 3*index1, vcurrent.v);
8418 if (obj_vt && index2 >= 0 && index2 < numvt)
8419 Vector2Copy(obj_vt + 2*index2, vcurrent.vt);
8420 if (obj_vn && index3 >= 0 && index3 < numvn)
8421 VectorCopy(obj_vn + 3*index3, vcurrent.vn);
8422 if (numtriangles == 0)
8424 VectorCopy(vcurrent.v, mins);
8425 VectorCopy(vcurrent.v, maxs);
8429 mins[0] = min(mins[0], vcurrent.v[0]);
8430 mins[1] = min(mins[1], vcurrent.v[1]);
8431 mins[2] = min(mins[2], vcurrent.v[2]);
8432 maxs[0] = max(maxs[0], vcurrent.v[0]);
8433 maxs[1] = max(maxs[1], vcurrent.v[1]);
8434 maxs[2] = max(maxs[2], vcurrent.v[2]);
8440 if (maxtriangles <= numtriangles)
8442 maxtriangles = max(maxtriangles * 2, 32768);
8443 vertices = (objvertex_t*)Mem_Realloc(loadmodel->mempool, vertices, maxtriangles * sizeof(objvertex_t[3]));
8445 if(mod_obj_orientation.integer)
8447 vertices[numtriangles*3+0] = vfirst;
8448 vertices[numtriangles*3+1] = vprev;
8449 vertices[numtriangles*3+2] = vcurrent;
8453 vertices[numtriangles*3+0] = vfirst;
8454 vertices[numtriangles*3+2] = vprev;
8455 vertices[numtriangles*3+1] = vcurrent;
8462 else if (!strcmp(argv[0], "o") || !strcmp(argv[0], "g"))
8464 submodelindex = atof(argv[1]);
8465 loadmodel->brush.numsubmodels = max(submodelindex + 1, loadmodel->brush.numsubmodels);
8467 else if (!strcmp(argv[0], "usemtl"))
8469 for (i = 0;i < numtextures;i++)
8470 if (!strcmp(texturenames+i*MAX_QPATH, argv[1]))
8472 if (i < numtextures)
8476 if (maxtextures <= numtextures)
8478 maxtextures = max(maxtextures * 2, 256);
8479 texturenames = (char *)Mem_Realloc(loadmodel->mempool, texturenames, maxtextures * MAX_QPATH);
8481 textureindex = numtextures++;
8482 strlcpy(texturenames + textureindex*MAX_QPATH, argv[1], MAX_QPATH);
8487 // now that we have the OBJ data loaded as-is, we can convert it
8489 // copy the model bounds, then enlarge the yaw and rotated bounds according to radius
8490 VectorCopy(mins, loadmodel->normalmins);
8491 VectorCopy(maxs, loadmodel->normalmaxs);
8492 dist = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
8493 modelyawradius = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
8494 modelyawradius = dist*dist+modelyawradius*modelyawradius;
8495 modelradius = max(fabs(loadmodel->normalmins[2]), fabs(loadmodel->normalmaxs[2]));
8496 modelradius = modelyawradius + modelradius * modelradius;
8497 modelyawradius = sqrt(modelyawradius);
8498 modelradius = sqrt(modelradius);
8499 loadmodel->yawmins[0] = loadmodel->yawmins[1] = -modelyawradius;
8500 loadmodel->yawmins[2] = loadmodel->normalmins[2];
8501 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius;
8502 loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
8503 loadmodel->rotatedmins[0] = loadmodel->rotatedmins[1] = loadmodel->rotatedmins[2] = -modelradius;
8504 loadmodel->rotatedmaxs[0] = loadmodel->rotatedmaxs[1] = loadmodel->rotatedmaxs[2] = modelradius;
8505 loadmodel->radius = modelradius;
8506 loadmodel->radius2 = modelradius * modelradius;
8508 // allocate storage for triangles
8509 loadmodel->surfmesh.data_element3i = (int *)Mem_Alloc(loadmodel->mempool, numtriangles * sizeof(int[3]));
8510 // allocate vertex hash structures to build an optimal vertex subset
8511 vertexhashsize = numtriangles*2;
8512 vertexhashtable = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int) * vertexhashsize);
8513 memset(vertexhashtable, 0xFF, sizeof(int) * vertexhashsize);
8514 vertexhashdata = (objvertex_t *)Mem_Alloc(loadmodel->mempool, sizeof(*vertexhashdata) * numtriangles*3);
8515 vertexhashcount = 0;
8517 // gather surface stats for assigning vertex/triangle ranges
8521 loadmodel->num_surfaces = 0;
8522 // allocate storage for the worst case number of surfaces, later we resize
8523 tempsurfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, numtextures * loadmodel->brush.numsubmodels * sizeof(msurface_t));
8524 submodelfirstsurface = (int *)Mem_Alloc(loadmodel->mempool, (loadmodel->brush.numsubmodels+1) * sizeof(int));
8525 tempsurface = tempsurfaces;
8526 for (submodelindex = 0;submodelindex < loadmodel->brush.numsubmodels;submodelindex++)
8528 submodelfirstsurface[submodelindex] = loadmodel->num_surfaces;
8529 for (textureindex = 0;textureindex < numtextures;textureindex++)
8531 for (vertexindex = 0;vertexindex < numtriangles*3;vertexindex++)
8533 thisvertex = vertices + vertexindex;
8534 if (thisvertex->submodelindex == submodelindex && thisvertex->textureindex == textureindex)
8537 // skip the surface creation if there are no triangles for it
8538 if (vertexindex == numtriangles*3)
8540 // create a surface for these vertices
8541 surfacevertices = 0;
8542 surfaceelements = 0;
8543 // we hack in a texture index in the surface to be fixed up later...
8544 tempsurface->texture = (texture_t *)((size_t)textureindex);
8545 // calculate bounds as we go
8546 VectorCopy(thisvertex->v, tempsurface->mins);
8547 VectorCopy(thisvertex->v, tempsurface->maxs);
8548 for (;vertexindex < numtriangles*3;vertexindex++)
8550 thisvertex = vertices + vertexindex;
8551 if (thisvertex->submodelindex != submodelindex)
8553 if (thisvertex->textureindex != textureindex)
8555 // add vertex to surface bounds
8556 tempsurface->mins[0] = min(tempsurface->mins[0], thisvertex->v[0]);
8557 tempsurface->mins[1] = min(tempsurface->mins[1], thisvertex->v[1]);
8558 tempsurface->mins[2] = min(tempsurface->mins[2], thisvertex->v[2]);
8559 tempsurface->maxs[0] = max(tempsurface->maxs[0], thisvertex->v[0]);
8560 tempsurface->maxs[1] = max(tempsurface->maxs[1], thisvertex->v[1]);
8561 tempsurface->maxs[2] = max(tempsurface->maxs[2], thisvertex->v[2]);
8562 // add the vertex if it is not found in the merged set, and
8563 // get its index (triangle element) for the surface
8564 vertexhashindex = (unsigned int)(thisvertex->v[0] * 3571 + thisvertex->v[0] * 1777 + thisvertex->v[0] * 457) % (unsigned int)vertexhashsize;
8565 for (i = vertexhashtable[vertexhashindex];i >= 0;i = vertexhashdata[i].nextindex)
8567 vdata = vertexhashdata + i;
8568 if (vdata->submodelindex == thisvertex->submodelindex && vdata->textureindex == thisvertex->textureindex && VectorCompare(thisvertex->v, vdata->v) && VectorCompare(thisvertex->vn, vdata->vn) && Vector2Compare(thisvertex->vt, vdata->vt))
8573 i = vertexhashcount++;
8574 vdata = vertexhashdata + i;
8575 *vdata = *thisvertex;
8576 vdata->nextindex = vertexhashtable[vertexhashindex];
8577 vertexhashtable[vertexhashindex] = i;
8580 loadmodel->surfmesh.data_element3i[elementindex++] = i;
8583 surfacetriangles = surfaceelements / 3;
8584 tempsurface->num_vertices = surfacevertices;
8585 tempsurface->num_triangles = surfacetriangles;
8586 tempsurface->num_firstvertex = firstvertex;
8587 tempsurface->num_firsttriangle = firsttriangle;
8588 firstvertex += tempsurface->num_vertices;
8589 firsttriangle += tempsurface->num_triangles;
8591 loadmodel->num_surfaces++;
8594 submodelfirstsurface[submodelindex] = loadmodel->num_surfaces;
8595 numvertices = firstvertex;
8596 loadmodel->data_surfaces = (msurface_t *)Mem_Realloc(loadmodel->mempool, tempsurfaces, loadmodel->num_surfaces * sizeof(msurface_t));
8597 tempsurfaces = NULL;
8599 // allocate storage for final mesh data
8600 loadmodel->num_textures = numtextures * loadmodel->numskins;
8601 loadmodel->num_texturesperskin = numtextures;
8602 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(model_t *));
8603 loadmodel->brush.submodels = (model_t **)data;data += loadmodel->brush.numsubmodels * sizeof(model_t *);
8604 loadmodel->modelsurfaces_sorted = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
8605 loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
8606 loadmodel->surfmesh.num_vertices = numvertices;
8607 loadmodel->surfmesh.num_triangles = numtriangles;
8608 loadmodel->surfmesh.data_vertex3f = (float *)data;data += numvertices * sizeof(float[3]);
8609 loadmodel->surfmesh.data_svector3f = (float *)data;data += numvertices * sizeof(float[3]);
8610 loadmodel->surfmesh.data_tvector3f = (float *)data;data += numvertices * sizeof(float[3]);
8611 loadmodel->surfmesh.data_normal3f = (float *)data;data += numvertices * sizeof(float[3]);
8612 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += numvertices * sizeof(float[2]);
8614 if (loadmodel->surfmesh.num_vertices <= 65536) {
8615 loadmodel->surfmesh.data_element3s = (unsigned short *)data;data += loadmodel->surfmesh.num_triangles * sizeof(unsigned short[3]);
8618 for (j = 0;j < loadmodel->surfmesh.num_vertices;j++)
8620 VectorCopy(vertexhashdata[j].v, loadmodel->surfmesh.data_vertex3f + 3*j);
8621 VectorCopy(vertexhashdata[j].vn, loadmodel->surfmesh.data_normal3f + 3*j);
8622 Vector2Copy(vertexhashdata[j].vt, loadmodel->surfmesh.data_texcoordtexture2f + 2*j);
8625 // load the textures
8626 for (textureindex = 0;textureindex < numtextures;textureindex++)
8627 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + textureindex, skinfiles, texturenames + textureindex*MAX_QPATH, texturenames + textureindex*MAX_QPATH);
8628 Mod_FreeSkinFiles(skinfiles);
8630 // set the surface textures to their real values now that we loaded them...
8631 for (i = 0;i < loadmodel->num_surfaces;i++)
8632 loadmodel->data_surfaces[i].texture = loadmodel->data_textures + (size_t)loadmodel->data_surfaces[i].texture;
8636 Mem_Free(texturenames);
8640 Mem_Free(vertexhashtable);
8641 Mem_Free(vertexhashdata);
8643 // compute all the mesh information that was not loaded from the file
8644 if (loadmodel->surfmesh.data_element3s)
8645 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
8646 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
8647 Mod_ValidateElements(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_element3s, loadmodel->surfmesh.num_triangles, 0, loadmodel->surfmesh.num_vertices, __FILE__, __LINE__);
8648 // generate normals if the file did not have them
8649 if (!VectorLength2(loadmodel->surfmesh.data_normal3f))
8650 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);
8651 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);
8653 // if this is a worldmodel and has no BSP tree, create a fake one for the purpose
8654 loadmodel->brush.num_visleafs = 1;
8655 loadmodel->brush.num_leafs = 1;
8656 loadmodel->brush.num_nodes = 0;
8657 loadmodel->brush.num_leafsurfaces = loadmodel->num_surfaces;
8658 loadmodel->brush.data_leafs = (mleaf_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafs * sizeof(mleaf_t));
8659 loadmodel->brush.data_nodes = (mnode_t *)loadmodel->brush.data_leafs;
8660 loadmodel->brush.num_pvsclusters = 1;
8661 loadmodel->brush.num_pvsclusterbytes = 1;
8662 loadmodel->brush.data_pvsclusters = nobsp_pvs;
8663 //if (loadmodel->num_nodes) loadmodel->data_nodes = (mnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_nodes * sizeof(mnode_t));
8664 //loadmodel->data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->num_leafsurfaces * sizeof(int));
8665 loadmodel->brush.data_leafsurfaces = loadmodel->modelsurfaces_sorted;
8666 VectorCopy(loadmodel->normalmins, loadmodel->brush.data_leafs->mins);
8667 VectorCopy(loadmodel->normalmaxs, loadmodel->brush.data_leafs->maxs);
8668 loadmodel->brush.data_leafs->combinedsupercontents = 0; // FIXME?
8669 loadmodel->brush.data_leafs->clusterindex = 0;
8670 loadmodel->brush.data_leafs->areaindex = 0;
8671 loadmodel->brush.data_leafs->numleafsurfaces = loadmodel->brush.num_leafsurfaces;
8672 loadmodel->brush.data_leafs->firstleafsurface = loadmodel->brush.data_leafsurfaces;
8673 loadmodel->brush.data_leafs->numleafbrushes = 0;
8674 loadmodel->brush.data_leafs->firstleafbrush = NULL;
8675 loadmodel->brush.supportwateralpha = true;
8677 if (loadmodel->brush.numsubmodels)
8678 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
8681 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
8686 // duplicate the basic information
8687 dpsnprintf(name, sizeof(name), "*%i", i);
8688 mod = Mod_FindName(name, loadmodel->name);
8689 // copy the base model to this one
8691 // rename the clone back to its proper name
8692 strlcpy(mod->name, name, sizeof(mod->name));
8693 mod->brush.parentmodel = loadmodel;
8694 // textures and memory belong to the main model
8695 mod->texturepool = NULL;
8696 mod->mempool = NULL;
8697 mod->brush.GetPVS = NULL;
8698 mod->brush.FatPVS = NULL;
8699 mod->brush.BoxTouchingPVS = NULL;
8700 mod->brush.BoxTouchingLeafPVS = NULL;
8701 mod->brush.BoxTouchingVisibleLeafs = NULL;
8702 mod->brush.FindBoxClusters = NULL;
8703 mod->brush.LightPoint = NULL;
8704 mod->brush.AmbientSoundLevelsForPoint = NULL;
8706 mod->brush.submodel = i;
8707 if (loadmodel->brush.submodels)
8708 loadmodel->brush.submodels[i] = mod;
8710 // make the model surface list (used by shadowing/lighting)
8711 mod->submodelsurfaces_start = submodelfirstsurface[i];
8712 mod->submodelsurfaces_end = submodelfirstsurface[i+1];
8713 mod->firstmodelbrush = 0;
8714 mod->nummodelbrushes = 0;
8716 VectorClear(mod->normalmins);
8717 VectorClear(mod->normalmaxs);
8719 for (j = mod->submodelsurfaces_start;j < mod->submodelsurfaces_end;j++)
8721 const msurface_t *surface = mod->data_surfaces + j;
8722 const float *v3f = mod->surfmesh.data_vertex3f + 3 * surface->num_firstvertex;
8724 if (!surface->num_vertices)
8729 VectorCopy(v3f, mod->normalmins);
8730 VectorCopy(v3f, mod->normalmaxs);
8732 for (k = 0;k < surface->num_vertices;k++, v3f += 3)
8734 mod->normalmins[0] = min(mod->normalmins[0], v3f[0]);
8735 mod->normalmins[1] = min(mod->normalmins[1], v3f[1]);
8736 mod->normalmins[2] = min(mod->normalmins[2], v3f[2]);
8737 mod->normalmaxs[0] = max(mod->normalmaxs[0], v3f[0]);
8738 mod->normalmaxs[1] = max(mod->normalmaxs[1], v3f[1]);
8739 mod->normalmaxs[2] = max(mod->normalmaxs[2], v3f[2]);
8742 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
8743 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
8744 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
8745 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
8746 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
8747 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
8748 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
8749 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
8750 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
8751 mod->yawmins[2] = mod->normalmins[2];
8752 mod->yawmaxs[2] = mod->normalmaxs[2];
8753 mod->radius = modelradius;
8754 mod->radius2 = modelradius * modelradius;
8756 Mod_SetDrawSkyAndWater(mod);
8758 Mod_MakeCollisionBIH(mod, true, &mod->collision_bih);
8759 mod->render_bih = mod->collision_bih;
8761 // generate VBOs and other shared data before cloning submodels
8766 Mem_Free(submodelfirstsurface);
8768 // make the model surface list (used by shadowing/lighting)
8769 Mod_MakeSortedSurfaces(loadmodel);
8771 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);