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 dp_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 dp_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 dp_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 dp_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 dp_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 // Load the solid and alpha parts of the sky texture as separate textures
1629 loadmodel->brush.solidskyskinframe = R_SkinFrame_LoadInternalBGRA(
1632 (unsigned char *) solidpixels,
1634 CRC_Block((unsigned char *) solidpixels, w*h*4),
1636 loadmodel->brush.alphaskyskinframe = R_SkinFrame_LoadInternalBGRA(
1639 (unsigned char *) alphapixels,
1641 CRC_Block((unsigned char *) alphapixels, w*h*4),
1643 Mem_Free(solidpixels);
1644 Mem_Free(alphapixels);
1647 static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
1649 int i, j, k, num, max, altmax, mtwidth, mtheight, doffset, incomplete, nummiptex = 0, firstskynoshadowtexture = 0;
1650 skinframe_t *skinframemissing;
1651 texture_t *tx, *tx2, *anims[10], *altanims[10], *currentskynoshadowtexture;
1652 texture_t backuptex;
1653 unsigned char *data, *mtdata;
1655 char mapname[MAX_QPATH], name[MAX_QPATH];
1656 unsigned char zeroopaque[4], zerotrans[4];
1659 Vector4Set(zeroopaque, 0, 0, 0, 255);
1660 Vector4Set(zerotrans, 0, 0, 0, 128);
1662 loadmodel->data_textures = NULL;
1664 // add two slots for notexture walls and notexture liquids, and duplicate
1665 // all sky textures; sky surfaces can be shadow-casting or not, the surface
1666 // loading will choose according to the contents behind the surface
1667 // (necessary to support e1m5 logo shadow which has a SKY contents brush,
1668 // while correctly treating sky textures as occluders in other situations).
1673 nummiptex = MSG_ReadLittleLong(sb);
1674 loadmodel->num_textures = nummiptex + 2;
1675 // save the position so we can go back to it
1676 watermark = sb->readcount;
1677 for (i = 0; i < nummiptex; i++)
1679 doffset = MSG_ReadLittleLong(sb);
1680 if (r_nosurftextures.integer)
1684 Con_DPrintf("%s: miptex #%i missing\n", loadmodel->name, i);
1688 MSG_InitReadBuffer(&miptexsb, sb->data + doffset, sb->cursize - doffset);
1690 // copy name, but only up to 16 characters
1691 // (the output buffer can hold more than this, but the input buffer is
1693 for (j = 0; j < 16; j++)
1694 name[j] = MSG_ReadByte(&miptexsb);
1696 // pretty up the buffer (replacing any trailing garbage with 0)
1697 for (j = (int)strlen(name); j < 16; j++)
1699 // bones_was_here: force all names to lowercase (matching code below) so we don't crash on e2m9
1700 for (j = 0;name[j];j++)
1701 if (name[j] >= 'A' && name[j] <= 'Z')
1702 name[j] += 'a' - 'A';
1704 if (!strncmp(name, "sky", 3))
1708 // bump it back to where we started parsing
1709 sb->readcount = (int)watermark;
1711 firstskynoshadowtexture = loadmodel->num_textures;
1712 loadmodel->num_textures += numsky;
1716 loadmodel->num_textures = 2;
1717 firstskynoshadowtexture = loadmodel->num_textures;
1719 loadmodel->num_texturesperskin = loadmodel->num_textures;
1721 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
1723 // we'll be writing to these in parallel for sky textures
1724 currentskynoshadowtexture = loadmodel->data_textures + firstskynoshadowtexture;
1726 // fill out all slots with notexture
1727 skinframemissing = R_SkinFrame_LoadMissing();
1728 for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
1730 dp_strlcpy(tx->name, "NO TEXTURE FOUND", sizeof(tx->name));
1733 tx->basealpha = 1.0f;
1734 tx->materialshaderpass = tx->shaderpasses[0] = Mod_CreateShaderPass(loadmodel->mempool, skinframemissing);
1735 tx->materialshaderpass->skinframes[0] = skinframemissing;
1736 tx->currentskinframe = skinframemissing;
1737 tx->basematerialflags = MATERIALFLAG_WALL;
1738 if (i == loadmodel->num_textures - 1)
1740 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1741 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1742 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1746 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1747 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1749 tx->currentframe = tx;
1751 // clear water settings
1754 tx->refractive_index = mod_q3shader_default_refractive_index.value;
1755 tx->refractfactor = 1;
1756 Vector4Set(tx->refractcolor4f, 1, 1, 1, 1);
1757 tx->reflectfactor = 1;
1758 Vector4Set(tx->reflectcolor4f, 1, 1, 1, 1);
1759 tx->r_water_wateralpha = 1;
1760 tx->offsetmapping = OFFSETMAPPING_DEFAULT;
1761 tx->offsetscale = 1;
1763 tx->specularscalemod = 1;
1764 tx->specularpowermod = 1;
1765 tx->transparentsort = TRANSPARENTSORT_DISTANCE;
1766 // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
1767 // JUST GREP FOR "specularscalemod = 1".
1772 Con_Printf("%s: no miptex lump to load textures from\n", loadmodel->name);
1776 s = loadmodel->name;
1777 if (!strncasecmp(s, "maps/", 5))
1779 FS_StripExtension(s, mapname, sizeof(mapname));
1781 // LadyHavoc: mostly rewritten map texture loader
1782 for (i = 0;i < nummiptex;i++)
1784 doffset = MSG_ReadLittleLong(sb);
1785 if (r_nosurftextures.integer)
1789 Con_DPrintf("%s: miptex #%i missing\n", loadmodel->name, i);
1793 MSG_InitReadBuffer(&miptexsb, sb->data + doffset, sb->cursize - doffset);
1795 // copy name, but only up to 16 characters
1796 // (the output buffer can hold more than this, but the input buffer is
1798 for (j = 0;j < 16;j++)
1799 name[j] = MSG_ReadByte(&miptexsb);
1801 // pretty up the buffer (replacing any trailing garbage with 0)
1802 for (j = (int)strlen(name);j < 16;j++)
1807 dpsnprintf(name, sizeof(name), "unnamed%i", i);
1808 Con_DPrintf("%s: warning: renaming unnamed texture to %s\n", loadmodel->name, name);
1811 mtwidth = MSG_ReadLittleLong(&miptexsb);
1812 mtheight = MSG_ReadLittleLong(&miptexsb);
1814 j = MSG_ReadLittleLong(&miptexsb);
1818 if (j < 40 || j + mtwidth * mtheight > miptexsb.cursize)
1820 Con_Printf("%s: Texture \"%s\" is corrupt or incomplete\n", loadmodel->name, name);
1823 mtdata = miptexsb.data + j;
1826 if ((mtwidth & 15) || (mtheight & 15))
1827 Con_DPrintf("%s: warning: texture \"%s\" is not 16 aligned\n", loadmodel->name, name);
1829 // LadyHavoc: force all names to lowercase
1830 for (j = 0;name[j];j++)
1831 if (name[j] >= 'A' && name[j] <= 'Z')
1832 name[j] += 'a' - 'A';
1834 tx = loadmodel->data_textures + i;
1835 // 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
1836 backuptex = loadmodel->data_textures[i];
1837 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) ||
1838 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)))
1840 // set the width/height fields which are used for parsing texcoords in this bsp format
1841 tx->width = mtwidth;
1842 tx->height = mtheight;
1845 // no luck with loading shaders or external textures - restore the in-progress texture loading
1846 loadmodel->data_textures[i] = backuptex;
1848 dp_strlcpy(tx->name, name, sizeof(tx->name));
1849 tx->width = mtwidth;
1850 tx->height = mtheight;
1851 tx->basealpha = 1.0f;
1853 // start out with no animation
1854 tx->currentframe = tx;
1855 tx->currentskinframe = tx->materialshaderpass != NULL ? tx->materialshaderpass->skinframes[0] : NULL;
1857 if (tx->name[0] == '*')
1859 if (!strncmp(tx->name, "*lava", 5))
1861 tx->supercontents = mod_q1bsp_texture_lava.supercontents;
1862 tx->surfaceflags = mod_q1bsp_texture_lava.surfaceflags;
1864 else if (!strncmp(tx->name, "*slime", 6))
1866 tx->supercontents = mod_q1bsp_texture_slime.supercontents;
1867 tx->surfaceflags = mod_q1bsp_texture_slime.surfaceflags;
1871 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1872 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1875 else if (!strncmp(tx->name, "sky", 3))
1877 tx->supercontents = mod_q1bsp_texture_sky.supercontents;
1878 tx->surfaceflags = mod_q1bsp_texture_sky.surfaceflags;
1879 // for the surface traceline we need to hit this surface as a solid...
1880 tx->supercontents |= SUPERCONTENTS_SOLID;
1884 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1885 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1888 if (cls.state != ca_dedicated)
1890 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);
1892 !(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)))
1893 // HACK: It loads custom skybox textures as a wall if loaded as a skinframe.
1894 || !strncmp(tx->name, "sky", 3))
1896 // did not find external texture via shader loading, load it from the bsp or wad3
1897 if (loadmodel->brush.ishlbsp)
1899 // internal texture overrides wad
1900 unsigned char* pixels, * freepixels;
1901 pixels = freepixels = NULL;
1903 pixels = W_ConvertWAD3TextureBGRA(&miptexsb);
1905 pixels = freepixels = W_GetTextureBGRA(tx->name);
1908 tx->width = image_width;
1909 tx->height = image_height;
1910 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);
1913 Mem_Free(freepixels);
1915 else if (!strncmp(tx->name, "sky", 3) && mtwidth == mtheight * 2)
1917 data = loadimagepixelsbgra(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s/%s", mapname, tx->name), false, false, false, NULL);
1919 data = loadimagepixelsbgra(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s", tx->name), false, false, false, NULL);
1920 if (data && image_width == image_height * 2)
1922 Mod_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1925 else if (mtdata != NULL)
1926 Mod_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1928 else if (mtdata) // texture included
1929 tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalQuake(tx->name, TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP, false, r_fullbrights.integer, mtdata, tx->width, tx->height);
1930 // if mtdata is NULL, the "missing" texture has already been assigned to this
1931 // LadyHavoc: some Tenebrae textures get replaced by black
1932 if (!strncmp(tx->name, "*glassmirror", 12)) // Tenebrae
1933 tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_MIPMAP | TEXF_ALPHA, zerotrans, 1, 1, 0, 0, 0, false);
1934 else if (!strncmp(tx->name, "mirror", 6)) // Tenebrae
1935 tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, 0, zeroopaque, 1, 1, 0, 0, 0, false);
1938 tx->materialshaderpass->skinframes[0] = skinframe;
1939 tx->currentskinframe = tx->materialshaderpass->skinframes[0];
1942 tx->basematerialflags = MATERIALFLAG_WALL;
1943 if (tx->name[0] == '*')
1945 // LadyHavoc: some turbulent textures should not be affected by wateralpha
1946 if (!strncmp(tx->name, "*glassmirror", 12)) // Tenebrae
1947 tx->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_REFLECTION;
1948 else if (!strncmp(tx->name,"*lava",5)
1949 || !strncmp(tx->name,"*teleport",9)
1950 || !strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1951 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1953 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW | MATERIALFLAG_WATERALPHA | MATERIALFLAG_WATERSHADER;
1954 if (tx->currentskinframe != NULL && tx->currentskinframe->hasalpha)
1955 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1957 else if (tx->name[0] == '{') // fence textures
1959 tx->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
1961 else if (!strncmp(tx->name, "mirror", 6)) // Tenebrae
1963 // replace the texture with black
1964 tx->basematerialflags |= MATERIALFLAG_REFLECTION;
1966 else if (!strncmp(tx->name, "sky", 3))
1967 tx->basematerialflags = MATERIALFLAG_SKY;
1968 else if (!strcmp(tx->name, "caulk"))
1969 tx->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
1970 else if (tx->currentskinframe != NULL && tx->currentskinframe->hasalpha)
1971 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1972 tx->currentmaterialflags = tx->basematerialflags;
1974 // duplicate of sky with NOSHADOW
1975 if (tx->basematerialflags & MATERIALFLAG_SKY)
1977 *currentskynoshadowtexture = *tx;
1978 currentskynoshadowtexture->basematerialflags |= MATERIALFLAG_NOSHADOW;
1979 tx->skynoshadowtexture = currentskynoshadowtexture;
1980 currentskynoshadowtexture++;
1984 // sequence the animations
1985 for (i = 0;i < nummiptex;i++)
1987 tx = loadmodel->data_textures + i;
1988 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1991 if ((num < '0' || num > '9') && (num < 'a' || num > 'j'))
1993 Con_Printf("Bad animating texture %s\n", tx->name);
1996 if (tx->anim_total[0] || tx->anim_total[1])
1997 continue; // already sequenced
1999 // find the number of frames in the animation
2000 memset(anims, 0, sizeof(anims));
2001 memset(altanims, 0, sizeof(altanims));
2003 for (j = i;j < nummiptex;j++)
2005 tx2 = loadmodel->data_textures + j;
2006 if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
2010 if (num >= '0' && num <= '9')
2011 anims[num - '0'] = tx2;
2012 else if (num >= 'a' && num <= 'j')
2013 altanims[num - 'a'] = tx2;
2014 // No need to warn otherwise - we already did above.
2018 for (j = 0;j < 10;j++)
2025 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
2028 for (j = 0;j < max;j++)
2032 Con_Printf("Missing frame %i of %s\n", j, tx->name);
2036 for (j = 0;j < altmax;j++)
2040 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
2047 // If we have exactly one frame, something's wrong.
2048 if (max + altmax <= 1)
2050 Con_Printf("Texture %s is animated (leading +) but has only one frame\n", tx->name);
2055 // if there is no alternate animation, duplicate the primary
2056 // animation into the alternate
2058 for (k = 0;k < 10;k++)
2059 altanims[k] = anims[k];
2065 Con_Printf("Missing frame 0 of %s\n", tx->name);
2067 // however, we can handle this by duplicating the alternate animation into the primary
2069 for (k = 0;k < 10;k++)
2070 anims[k] = altanims[k];
2074 // link together the primary animation
2075 for (j = 0;j < max;j++)
2078 tx2->animated = 1; // q1bsp
2079 tx2->anim_total[0] = max;
2080 tx2->anim_total[1] = altmax;
2081 for (k = 0;k < 10;k++)
2083 tx2->anim_frames[0][k] = anims[k];
2084 tx2->anim_frames[1][k] = altanims[k];
2088 // if there really is an alternate anim...
2089 if (anims[0] != altanims[0])
2091 // link together the alternate animation
2092 for (j = 0;j < altmax;j++)
2095 tx2->animated = 1; // q1bsp
2096 // the primary/alternate are reversed here
2097 tx2->anim_total[0] = altmax;
2098 tx2->anim_total[1] = max;
2099 for (k = 0;k < 10;k++)
2101 tx2->anim_frames[0][k] = altanims[k];
2102 tx2->anim_frames[1][k] = anims[k];
2109 static void Mod_Q1BSP_LoadLighting(sizebuf_t *sb)
2112 unsigned char *in, *out, *data, d;
2113 char litfilename[MAX_QPATH];
2114 char dlitfilename[MAX_QPATH];
2115 fs_offset_t filesize;
2116 if (loadmodel->brush.ishlbsp) // LadyHavoc: load the colored lighting data straight
2118 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize);
2119 for (i = 0;i < sb->cursize;i++)
2120 loadmodel->brushq1.lightdata[i] = sb->data[i] >>= 1;
2122 else // LadyHavoc: bsp version 29 (normal white lighting)
2124 // LadyHavoc: hope is not lost yet, check for a .lit file to load
2125 dp_strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
2126 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
2127 dp_strlcpy (dlitfilename, litfilename, sizeof (dlitfilename));
2128 dp_strlcat (litfilename, ".lit", sizeof (litfilename));
2129 dp_strlcat (dlitfilename, ".dlit", sizeof (dlitfilename));
2130 data = (unsigned char*) FS_LoadFile(litfilename, tempmempool, false, &filesize);
2133 if (filesize == (fs_offset_t)(8 + sb->cursize * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
2135 i = LittleLong(((int *)data)[1]);
2138 if (developer_loading.integer)
2139 Con_Printf("loaded %s\n", litfilename);
2140 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
2141 memcpy(loadmodel->brushq1.lightdata, data + 8, filesize - 8);
2143 data = (unsigned char*) FS_LoadFile(dlitfilename, tempmempool, false, &filesize);
2146 if (filesize == (fs_offset_t)(8 + sb->cursize * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
2148 i = LittleLong(((int *)data)[1]);
2151 if (developer_loading.integer)
2152 Con_Printf("loaded %s\n", dlitfilename);
2153 loadmodel->brushq1.nmaplightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
2154 memcpy(loadmodel->brushq1.nmaplightdata, data + 8, filesize - 8);
2155 loadmodel->brushq3.deluxemapping_modelspace = false;
2156 loadmodel->brushq3.deluxemapping = true;
2165 Con_Printf("Unknown .lit file version (%d)\n", i);
2167 else if (filesize == 8)
2168 Con_Print("Empty .lit file, ignoring\n");
2170 Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", (int) filesize, (int) (8 + sb->cursize * 3));
2177 // LadyHavoc: oh well, expand the white lighting data
2180 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize*3);
2182 out = loadmodel->brushq1.lightdata;
2183 for (i = 0;i < sb->cursize;i++)
2193 static void Mod_Q1BSP_LoadVisibility(sizebuf_t *sb)
2195 loadmodel->brushq1.num_compressedpvs = 0;
2196 loadmodel->brushq1.data_compressedpvs = NULL;
2199 loadmodel->brushq1.num_compressedpvs = sb->cursize;
2200 loadmodel->brushq1.data_compressedpvs = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize);
2201 MSG_ReadBytes(sb, sb->cursize, loadmodel->brushq1.data_compressedpvs);
2204 // used only for HalfLife maps
2205 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
2207 char key[128], value[4096];
2211 if (!COM_ParseToken_Simple(&data, false, false, true))
2213 if (com_token[0] != '{')
2217 if (!COM_ParseToken_Simple(&data, false, false, true))
2219 if (com_token[0] == '}')
2220 break; // end of worldspawn
2221 if (com_token[0] == '_')
2222 dp_strlcpy(key, com_token + 1, sizeof(key));
2224 dp_strlcpy(key, com_token, sizeof(key));
2225 while (key[strlen(key)-1] == ' ') // remove trailing spaces
2226 key[strlen(key)-1] = 0;
2227 if (!COM_ParseToken_Simple(&data, false, false, true))
2229 dpsnprintf(value, sizeof(value), "%s", com_token);
2230 if (!strcmp("wad", key)) // for HalfLife maps
2232 if (loadmodel->brush.ishlbsp)
2235 for (i = 0;i < (int)sizeof(value);i++)
2236 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
2238 if (i < (int)sizeof(value) && value[i])
2240 for (;i < (int)sizeof(value);i++)
2242 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
2243 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
2245 else if (value[i] == ';' || value[i] == 0)
2249 W_LoadTextureWadFile(&value[j], false);
2261 static void Mod_Q1BSP_LoadEntities(sizebuf_t *sb)
2263 loadmodel->brush.entities = NULL;
2266 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, sb->cursize + 1);
2267 MSG_ReadBytes(sb, sb->cursize, (unsigned char *)loadmodel->brush.entities);
2268 loadmodel->brush.entities[sb->cursize] = 0;
2269 if (loadmodel->brush.ishlbsp)
2270 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
2274 static void Mod_Q1BSP_LoadVertexes(sizebuf_t *sb)
2278 int structsize = 12;
2280 if (sb->cursize % structsize)
2281 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
2282 count = sb->cursize / structsize;
2283 out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2285 loadmodel->brushq1.vertexes = out;
2286 loadmodel->brushq1.numvertexes = count;
2288 for ( i=0 ; i<count ; i++, out++)
2290 out->position[0] = MSG_ReadLittleFloat(sb);
2291 out->position[1] = MSG_ReadLittleFloat(sb);
2292 out->position[2] = MSG_ReadLittleFloat(sb);
2296 static void Mod_BSP_LoadSubmodels(sizebuf_t *sb, hullinfo_t *hullinfo)
2300 int structsize = hullinfo ? (48+4*hullinfo->filehulls) : 48;
2302 if (sb->cursize % structsize)
2303 Host_Error ("Mod_BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
2305 count = sb->cursize / structsize;
2306 out = (mmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
2308 loadmodel->brushq1.submodels = out;
2309 loadmodel->brush.numsubmodels = count;
2311 for (i = 0; i < count; i++, out++)
2313 // spread out the mins / maxs by a pixel
2314 out->mins[0] = MSG_ReadLittleFloat(sb) - 1;
2315 out->mins[1] = MSG_ReadLittleFloat(sb) - 1;
2316 out->mins[2] = MSG_ReadLittleFloat(sb) - 1;
2317 out->maxs[0] = MSG_ReadLittleFloat(sb) + 1;
2318 out->maxs[1] = MSG_ReadLittleFloat(sb) + 1;
2319 out->maxs[2] = MSG_ReadLittleFloat(sb) + 1;
2320 out->origin[0] = MSG_ReadLittleFloat(sb);
2321 out->origin[1] = MSG_ReadLittleFloat(sb);
2322 out->origin[2] = MSG_ReadLittleFloat(sb);
2325 for (j = 0; j < hullinfo->filehulls; j++)
2326 out->headnode[j] = MSG_ReadLittleLong(sb);
2327 out->visleafs = MSG_ReadLittleLong(sb);
2329 else // Quake 2 has only one hull
2330 out->headnode[0] = MSG_ReadLittleLong(sb);
2332 out->firstface = MSG_ReadLittleLong(sb);
2333 out->numfaces = MSG_ReadLittleLong(sb);
2337 static void Mod_Q1BSP_LoadEdges(sizebuf_t *sb)
2341 int structsize = loadmodel->brush.isbsp2 ? 8 : 4;
2343 if (sb->cursize % structsize)
2344 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
2345 count = sb->cursize / structsize;
2346 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
2348 loadmodel->brushq1.edges = out;
2349 loadmodel->brushq1.numedges = count;
2351 for ( i=0 ; i<count ; i++, out++)
2353 if (loadmodel->brush.isbsp2)
2355 out->v[0] = (unsigned int)MSG_ReadLittleLong(sb);
2356 out->v[1] = (unsigned int)MSG_ReadLittleLong(sb);
2360 out->v[0] = (unsigned short)MSG_ReadLittleShort(sb);
2361 out->v[1] = (unsigned short)MSG_ReadLittleShort(sb);
2363 if ((int)out->v[0] >= loadmodel->brushq1.numvertexes || (int)out->v[1] >= loadmodel->brushq1.numvertexes)
2365 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);
2366 if(!loadmodel->brushq1.numvertexes)
2367 Host_Error("Mod_Q1BSP_LoadEdges: %s has edges but no vertexes, cannot fix\n", loadmodel->name);
2375 static void Mod_Q1BSP_LoadTexinfo(sizebuf_t *sb)
2378 int i, j, k, count, miptex;
2379 int structsize = 40;
2381 if (sb->cursize % structsize)
2382 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
2383 count = sb->cursize / structsize;
2384 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
2386 loadmodel->brushq1.texinfo = out;
2387 loadmodel->brushq1.numtexinfo = count;
2389 for (i = 0;i < count;i++, out++)
2391 for (k = 0;k < 2;k++)
2392 for (j = 0;j < 4;j++)
2393 out->vecs[k][j] = MSG_ReadLittleFloat(sb);
2395 miptex = MSG_ReadLittleLong(sb);
2396 out->q1flags = MSG_ReadLittleLong(sb);
2398 if (out->q1flags & TEX_SPECIAL)
2400 // if texture chosen is NULL or the shader needs a lightmap,
2401 // force to notexture water shader
2402 out->textureindex = loadmodel->num_textures - 1;
2406 // if texture chosen is NULL, force to notexture
2407 out->textureindex = loadmodel->num_textures - 2;
2409 // see if the specified miptex is valid and try to use it instead
2410 if (loadmodel->data_textures)
2412 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
2413 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
2415 out->textureindex = miptex;
2421 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
2426 mins[0] = mins[1] = mins[2] = 9999;
2427 maxs[0] = maxs[1] = maxs[2] = -9999;
2429 for (i = 0;i < numverts;i++)
2431 for (j = 0;j < 3;j++, v++)
2441 #define MAX_SUBDIVPOLYTRIANGLES 4096
2442 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
2444 static int subdivpolyverts, subdivpolytriangles;
2445 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
2446 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
2448 static int subdivpolylookupvert(vec3_t v)
2451 for (i = 0;i < subdivpolyverts;i++)
2452 if (subdivpolyvert[i][0] == v[0]
2453 && subdivpolyvert[i][1] == v[1]
2454 && subdivpolyvert[i][2] == v[2])
2456 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
2457 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
2458 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
2459 return subdivpolyverts++;
2462 static void SubdividePolygon(int numverts, float *verts)
2464 int i, i1, i2, i3, f, b, c, p;
2465 vec3_t mins, maxs, front[256], back[256];
2466 float m, *pv, *cv, dist[256], frac;
2469 Host_Error("SubdividePolygon: ran out of verts in buffer");
2471 BoundPoly(numverts, verts, mins, maxs);
2473 for (i = 0;i < 3;i++)
2475 m = (mins[i] + maxs[i]) * 0.5;
2476 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
2477 if (maxs[i] - m < 8)
2479 if (m - mins[i] < 8)
2483 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
2484 dist[c] = cv[i] - m;
2487 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
2491 VectorCopy(pv, front[f]);
2496 VectorCopy(pv, back[b]);
2499 if (dist[p] == 0 || dist[c] == 0)
2501 if ((dist[p] > 0) != (dist[c] > 0) )
2504 frac = dist[p] / (dist[p] - dist[c]);
2505 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
2506 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
2507 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
2513 SubdividePolygon(f, front[0]);
2514 SubdividePolygon(b, back[0]);
2518 i1 = subdivpolylookupvert(verts);
2519 i2 = subdivpolylookupvert(verts + 3);
2520 for (i = 2;i < numverts;i++)
2522 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
2524 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
2528 i3 = subdivpolylookupvert(verts + i * 3);
2529 subdivpolyindex[subdivpolytriangles][0] = i1;
2530 subdivpolyindex[subdivpolytriangles][1] = i2;
2531 subdivpolyindex[subdivpolytriangles][2] = i3;
2533 subdivpolytriangles++;
2537 //Breaks a polygon up along axial 64 unit
2538 //boundaries so that turbulent and sky warps
2539 //can be done reasonably.
2540 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
2546 subdivpolytriangles = 0;
2547 subdivpolyverts = 0;
2548 SubdividePolygon(surface->num_vertices, (surface->mesh->data_vertex3f + 3 * surface->num_firstvertex));
2549 if (subdivpolytriangles < 1)
2550 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?");
2552 surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
2553 mesh->num_vertices = subdivpolyverts;
2554 mesh->num_triangles = subdivpolytriangles;
2555 mesh->vertex = (surfvertex_t *)(mesh + 1);
2556 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
2557 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
2559 for (i = 0;i < mesh->num_triangles;i++)
2560 for (j = 0;j < 3;j++)
2561 mesh->index[i*3+j] = subdivpolyindex[i][j];
2563 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
2565 VectorCopy(subdivpolyvert[i], v->v);
2566 v->st[0] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[0]);
2567 v->st[1] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[1]);
2572 extern cvar_t gl_max_lightmapsize;
2573 static void Mod_Q1BSP_LoadFaces(sizebuf_t *sb)
2575 msurface_t *surface;
2576 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber, lightmapsize, totallightmapsamples, lightmapoffset, texinfoindex;
2577 float texmins[2], texmaxs[2], val;
2578 rtexture_t *lightmaptexture, *deluxemaptexture;
2580 int structsize = loadmodel->brush.isbsp2 ? 28 : 20;
2582 if (sb->cursize % structsize)
2583 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
2584 count = sb->cursize / structsize;
2585 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
2586 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
2588 loadmodel->num_surfaces = count;
2590 loadmodel->brushq1.firstrender = true;
2591 loadmodel->brushq1.lightmapupdateflags = (unsigned char *)Mem_Alloc(loadmodel->mempool, count*sizeof(unsigned char));
2595 for (surfacenum = 0;surfacenum < count;surfacenum++)
2597 if (loadmodel->brush.isbsp2)
2598 numedges = BuffLittleLong(sb->data + structsize * surfacenum + 12);
2600 numedges = BuffLittleShort(sb->data + structsize * surfacenum + 8);
2601 totalverts += numedges;
2602 totaltris += numedges - 2;
2605 Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false);
2607 lightmaptexture = NULL;
2608 deluxemaptexture = r_texture_blanknormalmap;
2610 lightmapsize = bound(256, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d);
2611 totallightmapsamples = 0;
2615 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2617 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
2618 // the struct on disk is the same in BSP29 (Q1), BSP30 (HL1), and IBSP38 (Q2)
2619 planenum = loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2620 /*side = */loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2621 firstedge = MSG_ReadLittleLong(sb);
2622 numedges = loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2623 texinfoindex = loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2624 for (i = 0;i < MAXLIGHTMAPS;i++)
2625 surface->lightmapinfo->styles[i] = MSG_ReadByte(sb);
2626 lightmapoffset = MSG_ReadLittleLong(sb);
2628 // FIXME: validate edges, texinfo, etc?
2629 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)
2630 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)", firstedge, numedges, loadmodel->brushq1.numsurfedges);
2631 if ((unsigned int) texinfoindex >= (unsigned int) loadmodel->brushq1.numtexinfo)
2632 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)", texinfoindex, loadmodel->brushq1.numtexinfo);
2633 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
2634 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)", planenum, loadmodel->brush.num_planes);
2636 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + texinfoindex;
2637 surface->texture = loadmodel->data_textures + surface->lightmapinfo->texinfo->textureindex;
2639 // Q2BSP doesn't use lightmaps on sky or warped surfaces (water), but still has a lightofs of 0
2640 if (lightmapoffset == 0 && (surface->texture->q2flags & (Q2SURF_SKY | Q2SURF_WARP)))
2641 lightmapoffset = -1;
2643 //surface->flags = surface->texture->flags;
2644 //if (LittleShort(in->side))
2645 // surface->flags |= SURF_PLANEBACK;
2646 //surface->plane = loadmodel->brush.data_planes + planenum;
2648 surface->num_firstvertex = totalverts;
2649 surface->num_vertices = numedges;
2650 surface->num_firsttriangle = totaltris;
2651 surface->num_triangles = numedges - 2;
2652 totalverts += numedges;
2653 totaltris += numedges - 2;
2655 // convert edges back to a normal polygon
2656 for (i = 0;i < surface->num_vertices;i++)
2658 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
2660 // note: the q1bsp format does not allow a 0 surfedge (it would have no negative counterpart)
2662 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2664 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2665 s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2666 t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2667 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
2668 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
2669 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
2670 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
2671 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
2674 for (i = 0;i < surface->num_triangles;i++)
2676 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
2677 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
2678 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
2681 // compile additional data about the surface geometry
2682 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);
2683 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);
2684 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
2686 // generate surface extents information
2687 texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2688 texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2689 for (i = 1;i < surface->num_vertices;i++)
2691 for (j = 0;j < 2;j++)
2693 val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
2694 texmins[j] = min(texmins[j], val);
2695 texmaxs[j] = max(texmaxs[j], val);
2698 for (i = 0;i < 2;i++)
2700 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
2701 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
2704 smax = surface->lightmapinfo->extents[0] >> 4;
2705 tmax = surface->lightmapinfo->extents[1] >> 4;
2706 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2707 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2710 surface->lightmaptexture = NULL;
2711 surface->deluxemaptexture = r_texture_blanknormalmap;
2712 if (lightmapoffset == -1)
2714 surface->lightmapinfo->samples = NULL;
2716 // give non-lightmapped water a 1x white lightmap
2717 if (!loadmodel->brush.isq2bsp && surface->texture->name[0] == '*' && (surface->lightmapinfo->texinfo->q1flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
2719 surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2720 surface->lightmapinfo->styles[0] = 0;
2721 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
2725 else if (loadmodel->brush.ishlbsp || loadmodel->brush.isq2bsp) // LadyHavoc: HalfLife map (bsp version 30)
2726 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + lightmapoffset;
2727 else // LadyHavoc: white lighting (bsp version 29)
2729 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (lightmapoffset * 3);
2730 if (loadmodel->brushq1.nmaplightdata)
2731 surface->lightmapinfo->nmapsamples = loadmodel->brushq1.nmaplightdata + (lightmapoffset * 3);
2734 // check if we should apply a lightmap to this
2735 if (!(surface->lightmapinfo->texinfo->q1flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
2737 if (ssize > 256 || tsize > 256)
2738 Host_Error("Bad surface extents");
2740 if (lightmapsize < ssize)
2741 lightmapsize = ssize;
2742 if (lightmapsize < tsize)
2743 lightmapsize = tsize;
2745 totallightmapsamples += ssize*tsize;
2747 // force lightmap upload on first time seeing the surface
2749 // additionally this is used by the later code to see if a
2750 // lightmap is needed on this surface (rather than duplicating the
2752 loadmodel->brushq1.lightmapupdateflags[surfacenum] = true;
2753 loadmodel->lit = true;
2757 // small maps (such as ammo boxes especially) don't need big lightmap
2758 // textures, so this code tries to guess a good size based on
2759 // totallightmapsamples (size of the lightmaps lump basically), as well as
2760 // trying to max out the size if there is a lot of lightmap data to store
2761 // additionally, never choose a lightmapsize that is smaller than the
2762 // largest surface encountered (as it would fail)
2764 for (lightmapsize = 64; (lightmapsize < i) && (lightmapsize < bound(128, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d)) && (totallightmapsamples > lightmapsize*lightmapsize); lightmapsize*=2)
2767 // now that we've decided the lightmap texture size, we can do the rest
2768 if (cls.state != ca_dedicated)
2770 int stainmapsize = 0;
2771 mod_alloclightmap_state_t allocState;
2773 Mod_AllocLightmap_Init(&allocState, loadmodel->mempool, lightmapsize, lightmapsize);
2774 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2776 int iu, iv, lightmapx = 0, lightmapy = 0;
2777 float u, v, ubase, vbase, uscale, vscale;
2779 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
2782 smax = surface->lightmapinfo->extents[0] >> 4;
2783 tmax = surface->lightmapinfo->extents[1] >> 4;
2784 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2785 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2786 stainmapsize += ssize * tsize * 3;
2788 if (!lightmaptexture || !Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy))
2790 // allocate a texture pool if we need it
2791 if (loadmodel->texturepool == NULL)
2792 loadmodel->texturepool = R_AllocTexturePool();
2793 // could not find room, make a new lightmap
2794 loadmodel->brushq3.num_mergedlightmaps = lightmapnumber + 1;
2795 loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Realloc(loadmodel->mempool, loadmodel->brushq3.data_lightmaps, loadmodel->brushq3.num_mergedlightmaps * sizeof(loadmodel->brushq3.data_lightmaps[0]));
2796 loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Realloc(loadmodel->mempool, loadmodel->brushq3.data_deluxemaps, loadmodel->brushq3.num_mergedlightmaps * sizeof(loadmodel->brushq3.data_deluxemaps[0]));
2797 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);
2798 if (loadmodel->brushq1.nmaplightdata)
2799 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);
2801 Mod_AllocLightmap_Reset(&allocState);
2802 Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy);
2804 surface->lightmaptexture = lightmaptexture;
2805 surface->deluxemaptexture = deluxemaptexture;
2806 surface->lightmapinfo->lightmaporigin[0] = lightmapx;
2807 surface->lightmapinfo->lightmaporigin[1] = lightmapy;
2809 uscale = 1.0f / (float)lightmapsize;
2810 vscale = 1.0f / (float)lightmapsize;
2811 ubase = lightmapx * uscale;
2812 vbase = lightmapy * vscale;
2814 for (i = 0;i < surface->num_vertices;i++)
2816 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);
2817 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);
2818 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
2819 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
2820 // LadyHavoc: calc lightmap data offset for vertex lighting to use
2823 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
2827 if (cl_stainmaps.integer)
2829 // allocate stainmaps for permanent marks on walls and clear white
2830 unsigned char *stainsamples = NULL;
2831 stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, stainmapsize);
2832 memset(stainsamples, 255, stainmapsize);
2834 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2836 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
2838 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2839 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2840 surface->lightmapinfo->stainsamples = stainsamples;
2841 stainsamples += ssize * tsize * 3;
2846 // generate ushort elements array if possible
2847 if (loadmodel->surfmesh.data_element3s)
2848 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2849 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2852 static void Mod_BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
2855 // Host_Error("Mod_BSP_LoadNodes_RecursiveSetParent: runaway recursion");
2856 node->parent = parent;
2859 // this is a node, recurse to children
2860 Mod_BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
2861 Mod_BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
2862 // combine supercontents of children
2863 node->combinedsupercontents = node->children[0]->combinedsupercontents | node->children[1]->combinedsupercontents;
2868 mleaf_t *leaf = (mleaf_t *)node;
2869 // if this is a leaf, calculate supercontents mask from all collidable
2870 // primitives in the leaf (brushes and collision surfaces)
2871 // also flag if the leaf contains any collision surfaces
2872 leaf->combinedsupercontents = 0;
2873 // combine the supercontents values of all brushes in this leaf
2874 for (j = 0;j < leaf->numleafbrushes;j++)
2875 leaf->combinedsupercontents |= loadmodel->brush.data_brushes[leaf->firstleafbrush[j]].texture->supercontents;
2876 // check if this leaf contains any collision surfaces (q3 patches)
2877 for (j = 0;j < leaf->numleafsurfaces;j++)
2879 msurface_t *surface = loadmodel->data_surfaces + leaf->firstleafsurface[j];
2880 if (surface->num_collisiontriangles)
2882 leaf->containscollisionsurfaces = true;
2883 leaf->combinedsupercontents |= surface->texture->supercontents;
2889 static void Mod_Q1BSP_LoadNodes(sizebuf_t *sb)
2891 int i, j, count, p, child[2];
2893 int structsize = loadmodel->brush.isbsp2rmqe ? 32 : (loadmodel->brush.isbsp2 ? 44 : 24);
2895 if (sb->cursize % structsize)
2896 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
2897 count = sb->cursize / structsize;
2899 Host_Error("Mod_Q1BSP_LoadNodes: missing BSP tree in %s",loadmodel->name);
2900 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2902 loadmodel->brush.data_nodes = out;
2903 loadmodel->brush.num_nodes = count;
2905 for ( i=0 ; i<count ; i++, out++)
2907 p = MSG_ReadLittleLong(sb);
2908 out->plane = loadmodel->brush.data_planes + p;
2910 if (loadmodel->brush.isbsp2rmqe)
2912 child[0] = MSG_ReadLittleLong(sb);
2913 child[1] = MSG_ReadLittleLong(sb);
2914 out->mins[0] = MSG_ReadLittleShort(sb);
2915 out->mins[1] = MSG_ReadLittleShort(sb);
2916 out->mins[2] = MSG_ReadLittleShort(sb);
2917 out->maxs[0] = MSG_ReadLittleShort(sb);
2918 out->maxs[1] = MSG_ReadLittleShort(sb);
2919 out->maxs[2] = MSG_ReadLittleShort(sb);
2920 out->firstsurface = MSG_ReadLittleLong(sb);
2921 out->numsurfaces = MSG_ReadLittleLong(sb);
2923 else if (loadmodel->brush.isbsp2)
2925 child[0] = MSG_ReadLittleLong(sb);
2926 child[1] = MSG_ReadLittleLong(sb);
2927 out->mins[0] = MSG_ReadLittleFloat(sb);
2928 out->mins[1] = MSG_ReadLittleFloat(sb);
2929 out->mins[2] = MSG_ReadLittleFloat(sb);
2930 out->maxs[0] = MSG_ReadLittleFloat(sb);
2931 out->maxs[1] = MSG_ReadLittleFloat(sb);
2932 out->maxs[2] = MSG_ReadLittleFloat(sb);
2933 out->firstsurface = MSG_ReadLittleLong(sb);
2934 out->numsurfaces = MSG_ReadLittleLong(sb);
2938 child[0] = (unsigned short)MSG_ReadLittleShort(sb);
2939 child[1] = (unsigned short)MSG_ReadLittleShort(sb);
2940 if (child[0] >= count)
2942 if (child[1] >= count)
2945 out->mins[0] = MSG_ReadLittleShort(sb);
2946 out->mins[1] = MSG_ReadLittleShort(sb);
2947 out->mins[2] = MSG_ReadLittleShort(sb);
2948 out->maxs[0] = MSG_ReadLittleShort(sb);
2949 out->maxs[1] = MSG_ReadLittleShort(sb);
2950 out->maxs[2] = MSG_ReadLittleShort(sb);
2952 out->firstsurface = (unsigned short)MSG_ReadLittleShort(sb);
2953 out->numsurfaces = (unsigned short)MSG_ReadLittleShort(sb);
2956 for (j=0 ; j<2 ; j++)
2958 // LadyHavoc: this code supports broken bsp files produced by
2959 // arguire qbsp which can produce more than 32768 nodes, any value
2960 // below count is assumed to be a node number, any other value is
2961 // assumed to be a leaf number
2965 if (p < loadmodel->brush.num_nodes)
2966 out->children[j] = loadmodel->brush.data_nodes + p;
2969 Con_Printf("Mod_Q1BSP_LoadNodes: invalid node index %i (file has only %i nodes)\n", p, loadmodel->brush.num_nodes);
2970 // map it to the solid leaf
2971 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
2976 // get leaf index as a positive value starting at 0 (-1 becomes 0, -2 becomes 1, etc)
2978 if (p < loadmodel->brush.num_leafs)
2979 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + p);
2982 Con_Printf("Mod_Q1BSP_LoadNodes: invalid leaf index %i (file has only %i leafs)\n", p, loadmodel->brush.num_leafs);
2983 // map it to the solid leaf
2984 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
2990 Mod_BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
2993 static void Mod_Q1BSP_LoadLeafs(sizebuf_t *sb)
2996 int i, j, count, p, firstmarksurface, nummarksurfaces;
2997 int structsize = loadmodel->brush.isbsp2rmqe ? 32 : (loadmodel->brush.isbsp2 ? 44 : 28);
2999 if (sb->cursize % structsize)
3000 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
3001 count = sb->cursize / structsize;
3002 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
3004 loadmodel->brush.data_leafs = out;
3005 loadmodel->brush.num_leafs = count;
3006 // get visleafs from the submodel data
3007 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
3008 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
3009 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
3010 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
3012 // FIXME: this function could really benefit from some error checking
3013 for ( i=0 ; i<count ; i++, out++)
3015 out->contents = MSG_ReadLittleLong(sb);
3017 out->clusterindex = i - 1;
3018 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
3019 out->clusterindex = -1;
3021 p = MSG_ReadLittleLong(sb);
3022 // ignore visofs errors on leaf 0 (solid)
3023 if (p >= 0 && out->clusterindex >= 0)
3025 if (p >= loadmodel->brushq1.num_compressedpvs)
3026 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
3028 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);
3031 if (loadmodel->brush.isbsp2rmqe)
3033 out->mins[0] = MSG_ReadLittleShort(sb);
3034 out->mins[1] = MSG_ReadLittleShort(sb);
3035 out->mins[2] = MSG_ReadLittleShort(sb);
3036 out->maxs[0] = MSG_ReadLittleShort(sb);
3037 out->maxs[1] = MSG_ReadLittleShort(sb);
3038 out->maxs[2] = MSG_ReadLittleShort(sb);
3040 firstmarksurface = MSG_ReadLittleLong(sb);
3041 nummarksurfaces = MSG_ReadLittleLong(sb);
3043 else if (loadmodel->brush.isbsp2)
3045 out->mins[0] = MSG_ReadLittleFloat(sb);
3046 out->mins[1] = MSG_ReadLittleFloat(sb);
3047 out->mins[2] = MSG_ReadLittleFloat(sb);
3048 out->maxs[0] = MSG_ReadLittleFloat(sb);
3049 out->maxs[1] = MSG_ReadLittleFloat(sb);
3050 out->maxs[2] = MSG_ReadLittleFloat(sb);
3052 firstmarksurface = MSG_ReadLittleLong(sb);
3053 nummarksurfaces = MSG_ReadLittleLong(sb);
3057 out->mins[0] = MSG_ReadLittleShort(sb);
3058 out->mins[1] = MSG_ReadLittleShort(sb);
3059 out->mins[2] = MSG_ReadLittleShort(sb);
3060 out->maxs[0] = MSG_ReadLittleShort(sb);
3061 out->maxs[1] = MSG_ReadLittleShort(sb);
3062 out->maxs[2] = MSG_ReadLittleShort(sb);
3064 firstmarksurface = (unsigned short)MSG_ReadLittleShort(sb);
3065 nummarksurfaces = (unsigned short)MSG_ReadLittleShort(sb);
3068 if (firstmarksurface >= 0 && firstmarksurface + nummarksurfaces <= loadmodel->brush.num_leafsurfaces)
3070 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + firstmarksurface;
3071 out->numleafsurfaces = nummarksurfaces;
3075 Con_Printf("Mod_Q1BSP_LoadLeafs: invalid leafsurface range %i:%i outside range %i:%i\n", firstmarksurface, firstmarksurface+nummarksurfaces, 0, loadmodel->brush.num_leafsurfaces);
3076 out->firstleafsurface = NULL;
3077 out->numleafsurfaces = 0;
3080 for (j = 0;j < 4;j++)
3081 out->ambient_sound_level[j] = MSG_ReadByte(sb);
3085 static qbool Mod_Q1BSP_CheckWaterAlphaSupport(void)
3089 const unsigned char *pvs;
3090 // if there's no vis data, assume supported (because everything is visible all the time)
3091 if (!loadmodel->brush.data_pvsclusters)
3093 // check all liquid leafs to see if they can see into empty leafs, if any
3094 // can we can assume this map supports r_wateralpha
3095 for (i = 0, leaf = loadmodel->brush.data_leafs;i < loadmodel->brush.num_leafs;i++, leaf++)
3097 if ((leaf->contents == CONTENTS_WATER || leaf->contents == CONTENTS_SLIME) && leaf->clusterindex >= 0)
3099 pvs = loadmodel->brush.data_pvsclusters + leaf->clusterindex * loadmodel->brush.num_pvsclusterbytes;
3100 for (j = 0;j < loadmodel->brush.num_leafs;j++)
3101 if (CHECKPVSBIT(pvs, loadmodel->brush.data_leafs[j].clusterindex) && loadmodel->brush.data_leafs[j].contents == CONTENTS_EMPTY)
3108 static void Mod_Q1BSP_LoadClipnodes(sizebuf_t *sb, hullinfo_t *hullinfo)
3113 int structsize = loadmodel->brush.isbsp2 ? 12 : 8;
3115 if (sb->cursize % structsize)
3116 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
3117 count = sb->cursize / structsize;
3118 out = (mclipnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
3120 loadmodel->brushq1.clipnodes = out;
3121 loadmodel->brushq1.numclipnodes = count;
3123 for (i = 1; i < MAX_MAP_HULLS; i++)
3125 hull = &loadmodel->brushq1.hulls[i];
3126 hull->clipnodes = out;
3127 hull->firstclipnode = 0;
3128 hull->lastclipnode = count-1;
3129 hull->planes = loadmodel->brush.data_planes;
3130 hull->clip_mins[0] = hullinfo->hullsizes[i][0][0];
3131 hull->clip_mins[1] = hullinfo->hullsizes[i][0][1];
3132 hull->clip_mins[2] = hullinfo->hullsizes[i][0][2];
3133 hull->clip_maxs[0] = hullinfo->hullsizes[i][1][0];
3134 hull->clip_maxs[1] = hullinfo->hullsizes[i][1][1];
3135 hull->clip_maxs[2] = hullinfo->hullsizes[i][1][2];
3136 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
3139 for (i=0 ; i<count ; i++, out++)
3141 out->planenum = MSG_ReadLittleLong(sb);
3142 if (out->planenum < 0 || out->planenum >= loadmodel->brush.num_planes)
3143 Host_Error("%s: Corrupt clipping hull(out of range planenum)", loadmodel->name);
3144 if (loadmodel->brush.isbsp2)
3146 out->children[0] = MSG_ReadLittleLong(sb);
3147 out->children[1] = MSG_ReadLittleLong(sb);
3148 if (out->children[0] >= count)
3149 Host_Error("%s: Corrupt clipping hull (invalid child index)", loadmodel->name);
3150 if (out->children[1] >= count)
3151 Host_Error("%s: Corrupt clipping hull (invalid child index)", loadmodel->name);
3155 // LadyHavoc: this code supports arguire qbsp's broken clipnodes indices (more than 32768 clipnodes), values above count are assumed to be contents values
3156 out->children[0] = (unsigned short)MSG_ReadLittleShort(sb);
3157 out->children[1] = (unsigned short)MSG_ReadLittleShort(sb);
3158 if (out->children[0] >= count)
3159 out->children[0] -= 65536;
3160 if (out->children[1] >= count)
3161 out->children[1] -= 65536;
3166 //Duplicate the drawing hull structure as a clipping hull
3167 static void Mod_Q1BSP_MakeHull0(void)
3174 hull = &loadmodel->brushq1.hulls[0];
3176 in = loadmodel->brush.data_nodes;
3177 out = (mclipnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(*out));
3179 hull->clipnodes = out;
3180 hull->firstclipnode = 0;
3181 hull->lastclipnode = loadmodel->brush.num_nodes - 1;
3182 hull->planes = loadmodel->brush.data_planes;
3184 for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
3186 out->planenum = in->plane - loadmodel->brush.data_planes;
3187 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
3188 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
3192 static void Mod_Q1BSP_LoadLeaffaces(sizebuf_t *sb)
3195 int structsize = loadmodel->brush.isbsp2 ? 4 : 2;
3197 if (sb->cursize % structsize)
3198 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
3199 loadmodel->brush.num_leafsurfaces = sb->cursize / structsize;
3200 loadmodel->brush.data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
3202 if (loadmodel->brush.isbsp2)
3204 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
3206 j = MSG_ReadLittleLong(sb);
3207 if (j < 0 || j >= loadmodel->num_surfaces)
3208 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
3209 loadmodel->brush.data_leafsurfaces[i] = j;
3214 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
3216 j = (unsigned short) MSG_ReadLittleShort(sb);
3217 if (j >= loadmodel->num_surfaces)
3218 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
3219 loadmodel->brush.data_leafsurfaces[i] = j;
3224 static void Mod_Q1BSP_LoadSurfedges(sizebuf_t *sb)
3229 if (sb->cursize % structsize)
3230 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
3231 loadmodel->brushq1.numsurfedges = sb->cursize / structsize;
3232 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
3234 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
3235 loadmodel->brushq1.surfedges[i] = MSG_ReadLittleLong(sb);
3239 static void Mod_Q1BSP_LoadPlanes(sizebuf_t *sb)
3243 int structsize = 20;
3245 if (sb->cursize % structsize)
3246 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
3247 loadmodel->brush.num_planes = sb->cursize / structsize;
3248 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
3250 for (i = 0;i < loadmodel->brush.num_planes;i++, out++)
3252 out->normal[0] = MSG_ReadLittleFloat(sb);
3253 out->normal[1] = MSG_ReadLittleFloat(sb);
3254 out->normal[2] = MSG_ReadLittleFloat(sb);
3255 out->dist = MSG_ReadLittleFloat(sb);
3256 MSG_ReadLittleLong(sb); // type is not used, we use PlaneClassify
3261 // fixes up sky surfaces that have SKY contents behind them, so that they do not cast shadows (e1m5 logo shadow trick).
3262 static void Mod_Q1BSP_AssignNoShadowSkySurfaces(model_t *mod)
3265 msurface_t *surface;
3268 for (surfaceindex = mod->submodelsurfaces_start; surfaceindex < mod->submodelsurfaces_end;surfaceindex++)
3270 surface = mod->data_surfaces + surfaceindex;
3271 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
3273 // check if the point behind the surface polygon is SOLID or SKY contents
3274 VectorMAMAM(0.5f, surface->mins, 0.5f, surface->maxs, -0.25f, mod->surfmesh.data_normal3f + 3*surface->num_firstvertex, center);
3275 contents = Mod_Q1BSP_PointSuperContents(mod, 0, center);
3276 if (!(contents & SUPERCONTENTS_SOLID))
3277 surface->texture = surface->texture->skynoshadowtexture;
3282 static void Mod_Q1BSP_LoadMapBrushes(void)
3286 int submodel, numbrushes;
3288 char *text, *maptext;
3289 char mapfilename[MAX_QPATH];
3290 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
3291 strlcat (mapfilename, ".map", sizeof (mapfilename));
3292 maptext = (unsigned char*) FS_LoadFile(mapfilename, tempmempool, false, NULL);
3296 if (!COM_ParseToken_Simple(&data, false, false, true))
3301 if (!COM_ParseToken_Simple(&data, false, false, true))
3303 if (com_token[0] != '{')
3309 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
3312 if (!COM_ParseToken_Simple(&data, false, false, true))
3314 if (com_token[0] == '}')
3315 break; // end of entity
3316 if (com_token[0] == '{')
3323 if (submodel > loadmodel->brush.numsubmodels)
3325 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
3329 model = loadmodel->brush.submodels[submodel];
3336 if (!COM_ParseToken_Simple(&data, false, false, true))
3338 if (com_token[0] == '}')
3339 break; // end of brush
3340 // each brush face should be this format:
3341 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
3342 // FIXME: support hl .map format
3343 for (pointnum = 0;pointnum < 3;pointnum++)
3345 COM_ParseToken_Simple(&data, false, false, true);
3346 for (componentnum = 0;componentnum < 3;componentnum++)
3348 COM_ParseToken_Simple(&data, false, false, true);
3349 point[pointnum][componentnum] = atof(com_token);
3351 COM_ParseToken_Simple(&data, false, false, true);
3353 COM_ParseToken_Simple(&data, false, false, true);
3354 strlcpy(facetexture, com_token, sizeof(facetexture));
3355 COM_ParseToken_Simple(&data, false, false, true);
3356 //scroll_s = atof(com_token);
3357 COM_ParseToken_Simple(&data, false, false, true);
3358 //scroll_t = atof(com_token);
3359 COM_ParseToken_Simple(&data, false, false, true);
3360 //rotate = atof(com_token);
3361 COM_ParseToken_Simple(&data, false, false, true);
3362 //scale_s = atof(com_token);
3363 COM_ParseToken_Simple(&data, false, false, true);
3364 //scale_t = atof(com_token);
3365 TriangleNormal(point[0], point[1], point[2], planenormal);
3366 VectorNormalizeDouble(planenormal);
3367 planedist = DotProduct(point[0], planenormal);
3368 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
3378 #define MAX_PORTALPOINTS 64
3380 typedef struct portal_s
3383 mnode_t *nodes[2]; // [0] = front side of plane
3384 struct portal_s *next[2];
3386 double points[3*MAX_PORTALPOINTS];
3387 struct portal_s *chain; // all portals are linked into a list
3391 static memexpandablearray_t portalarray;
3393 static void Mod_BSP_RecursiveRecalcNodeBBox(mnode_t *node)
3395 // process only nodes (leafs already had their box calculated)
3399 // calculate children first
3400 Mod_BSP_RecursiveRecalcNodeBBox(node->children[0]);
3401 Mod_BSP_RecursiveRecalcNodeBBox(node->children[1]);
3403 // make combined bounding box from children
3404 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
3405 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
3406 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
3407 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
3408 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
3409 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
3412 static void Mod_BSP_FinalizePortals(void)
3414 int i, j, numportals, numpoints, portalindex, portalrange = (int)Mem_ExpandableArray_IndexRange(&portalarray);
3418 mleaf_t *leaf, *endleaf;
3420 // tally up portal and point counts and recalculate bounding boxes for all
3421 // leafs (because qbsp is very sloppy)
3422 leaf = loadmodel->brush.data_leafs;
3423 endleaf = leaf + loadmodel->brush.num_leafs;
3424 if (mod_recalculatenodeboxes.integer)
3426 for (;leaf < endleaf;leaf++)
3428 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
3429 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
3434 for (portalindex = 0;portalindex < portalrange;portalindex++)
3436 p = (portal_t*)Mem_ExpandableArray_RecordAtIndex(&portalarray, portalindex);
3439 // note: this check must match the one below or it will usually corrupt memory
3440 // 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
3441 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
3444 numpoints += p->numpoints * 2;
3447 loadmodel->brush.data_portals = (mportal_t *)Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
3448 loadmodel->brush.num_portals = numportals;
3449 loadmodel->brush.data_portalpoints = (mvertex_t *)((unsigned char *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
3450 loadmodel->brush.num_portalpoints = numpoints;
3451 // clear all leaf portal chains
3452 for (i = 0;i < loadmodel->brush.num_leafs;i++)
3453 loadmodel->brush.data_leafs[i].portals = NULL;
3454 // process all portals in the global portal chain, while freeing them
3455 portal = loadmodel->brush.data_portals;
3456 point = loadmodel->brush.data_portalpoints;
3457 for (portalindex = 0;portalindex < portalrange;portalindex++)
3459 p = (portal_t*)Mem_ExpandableArray_RecordAtIndex(&portalarray, portalindex);
3462 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1])
3464 // note: this check must match the one above or it will usually corrupt memory
3465 // 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
3466 if (((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
3468 // first make the back to front portal(forward portal)
3469 portal->points = point;
3470 portal->numpoints = p->numpoints;
3471 portal->plane.dist = p->plane.dist;
3472 VectorCopy(p->plane.normal, portal->plane.normal);
3473 portal->here = (mleaf_t *)p->nodes[1];
3474 portal->past = (mleaf_t *)p->nodes[0];
3476 for (j = 0;j < portal->numpoints;j++)
3478 VectorCopy(p->points + j*3, point->position);
3481 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
3482 PlaneClassify(&portal->plane);
3484 // link into leaf's portal chain
3485 portal->next = portal->here->portals;
3486 portal->here->portals = portal;
3488 // advance to next portal
3491 // then make the front to back portal(backward portal)
3492 portal->points = point;
3493 portal->numpoints = p->numpoints;
3494 portal->plane.dist = -p->plane.dist;
3495 VectorNegate(p->plane.normal, portal->plane.normal);
3496 portal->here = (mleaf_t *)p->nodes[0];
3497 portal->past = (mleaf_t *)p->nodes[1];
3499 for (j = portal->numpoints - 1;j >= 0;j--)
3501 VectorCopy(p->points + j*3, point->position);
3504 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
3505 PlaneClassify(&portal->plane);
3507 // link into leaf's portal chain
3508 portal->next = portal->here->portals;
3509 portal->here->portals = portal;
3511 // advance to next portal
3514 // add the portal's polygon points to the leaf bounding boxes
3515 if (mod_recalculatenodeboxes.integer)
3517 for (i = 0;i < 2;i++)
3519 leaf = (mleaf_t *)p->nodes[i];
3520 for (j = 0;j < p->numpoints;j++)
3522 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
3523 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
3524 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
3525 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
3526 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
3527 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
3533 // now recalculate the node bounding boxes from the leafs
3534 if (mod_recalculatenodeboxes.integer)
3535 Mod_BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes + loadmodel->brushq1.hulls[0].firstclipnode);
3543 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
3546 Host_Error("AddPortalToNodes: NULL front node");
3548 Host_Error("AddPortalToNodes: NULL back node");
3549 if (p->nodes[0] || p->nodes[1])
3550 Host_Error("AddPortalToNodes: already included");
3551 // 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
3553 p->nodes[0] = front;
3554 p->next[0] = (portal_t *)front->portals;
3555 front->portals = (mportal_t *)p;
3558 p->next[1] = (portal_t *)back->portals;
3559 back->portals = (mportal_t *)p;
3564 RemovePortalFromNode
3567 static void RemovePortalFromNodes(portal_t *portal)
3571 void **portalpointer;
3573 for (i = 0;i < 2;i++)
3575 node = portal->nodes[i];
3577 portalpointer = (void **) &node->portals;
3580 t = (portal_t *)*portalpointer;
3582 Host_Error("RemovePortalFromNodes: portal not in leaf");
3586 if (portal->nodes[0] == node)
3588 *portalpointer = portal->next[0];
3589 portal->nodes[0] = NULL;
3591 else if (portal->nodes[1] == node)
3593 *portalpointer = portal->next[1];
3594 portal->nodes[1] = NULL;
3597 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
3601 if (t->nodes[0] == node)
3602 portalpointer = (void **) &t->next[0];
3603 else if (t->nodes[1] == node)
3604 portalpointer = (void **) &t->next[1];
3606 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
3611 #define PORTAL_DIST_EPSILON (1.0 / 32.0)
3612 static double *portalpointsbuffer;
3613 static int portalpointsbufferoffset;
3614 static int portalpointsbuffersize;
3615 static void Mod_BSP_RecursiveNodePortals(mnode_t *node)
3618 mnode_t *front, *back, *other_node;
3619 mplane_t clipplane, *plane;
3620 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
3621 int numfrontpoints, numbackpoints;
3622 double *frontpoints, *backpoints;
3624 // if a leaf, we're done
3628 // get some space for our clipping operations to use
3629 if (portalpointsbuffersize < portalpointsbufferoffset + 6*MAX_PORTALPOINTS)
3631 portalpointsbuffersize = portalpointsbufferoffset * 2;
3632 portalpointsbuffer = (double *)Mem_Realloc(loadmodel->mempool, portalpointsbuffer, portalpointsbuffersize * sizeof(*portalpointsbuffer));
3634 frontpoints = portalpointsbuffer + portalpointsbufferoffset;
3635 portalpointsbufferoffset += 3*MAX_PORTALPOINTS;
3636 backpoints = portalpointsbuffer + portalpointsbufferoffset;
3637 portalpointsbufferoffset += 3*MAX_PORTALPOINTS;
3639 plane = node->plane;
3641 front = node->children[0];
3642 back = node->children[1];
3644 Host_Error("Mod_BSP_RecursiveNodePortals: corrupt node hierarchy");
3646 // create the new portal by generating a polygon for the node plane,
3647 // and clipping it by all of the other portals(which came from nodes above this one)
3648 nodeportal = (portal_t *)Mem_ExpandableArray_AllocRecord(&portalarray);
3649 nodeportal->plane = *plane;
3651 // 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)
3652 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);
3653 nodeportal->numpoints = 4;
3655 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
3657 clipplane = portal->plane;
3658 if (portal->nodes[0] == portal->nodes[1])
3659 Host_Error("Mod_BSP_RecursiveNodePortals: portal has same node on both sides(1)");
3660 if (portal->nodes[0] == node)
3662 else if (portal->nodes[1] == node)
3664 clipplane.dist = -clipplane.dist;
3665 VectorNegate(clipplane.normal, clipplane.normal);
3670 Host_Error("Mod_BSP_RecursiveNodePortals: mislinked portal");
3671 side = 0; // hush warning
3674 for (i = 0;i < nodeportal->numpoints*3;i++)
3675 frontpoints[i] = nodeportal->points[i];
3676 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);
3677 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
3681 if (nodeportal->numpoints < 3)
3683 Con_Print(CON_WARN "Mod_BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
3684 nodeportal->numpoints = 0;
3686 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
3688 Con_Print(CON_WARN "Mod_BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
3689 nodeportal->numpoints = 0;
3692 AddPortalToNodes(nodeportal, front, back);
3694 // split the portals of this node along this node's plane and assign them to the children of this node
3695 // (migrating the portals downward through the tree)
3696 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
3698 if (portal->nodes[0] == portal->nodes[1])
3699 Host_Error("Mod_BSP_RecursiveNodePortals: portal has same node on both sides(2)");
3700 if (portal->nodes[0] == node)
3702 else if (portal->nodes[1] == node)
3706 Host_Error("Mod_BSP_RecursiveNodePortals: mislinked portal");
3707 side = 0; // hush warning
3709 nextportal = portal->next[side];
3710 if (!portal->numpoints)
3713 other_node = portal->nodes[!side];
3714 RemovePortalFromNodes(portal);
3716 // cut the portal into two portals, one on each side of the node plane
3717 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);
3719 if (!numfrontpoints)
3722 AddPortalToNodes(portal, back, other_node);
3724 AddPortalToNodes(portal, other_node, back);
3730 AddPortalToNodes(portal, front, other_node);
3732 AddPortalToNodes(portal, other_node, front);
3736 // the portal is split
3737 splitportal = (portal_t *)Mem_ExpandableArray_AllocRecord(&portalarray);
3738 temp = splitportal->chain;
3739 *splitportal = *portal;
3740 splitportal->chain = temp;
3741 for (i = 0;i < numbackpoints*3;i++)
3742 splitportal->points[i] = backpoints[i];
3743 splitportal->numpoints = numbackpoints;
3744 for (i = 0;i < numfrontpoints*3;i++)
3745 portal->points[i] = frontpoints[i];
3746 portal->numpoints = numfrontpoints;
3750 AddPortalToNodes(portal, front, other_node);
3751 AddPortalToNodes(splitportal, back, other_node);
3755 AddPortalToNodes(portal, other_node, front);
3756 AddPortalToNodes(splitportal, other_node, back);
3760 Mod_BSP_RecursiveNodePortals(front);
3761 Mod_BSP_RecursiveNodePortals(back);
3763 portalpointsbufferoffset -= 6*MAX_PORTALPOINTS;
3766 static void Mod_BSP_MakePortals(void)
3768 Mem_ExpandableArray_NewArray(&portalarray, loadmodel->mempool, sizeof(portal_t), 1020*1024/sizeof(portal_t));
3769 portalpointsbufferoffset = 0;
3770 portalpointsbuffersize = 6*MAX_PORTALPOINTS*128;
3771 portalpointsbuffer = (double *)Mem_Alloc(loadmodel->mempool, portalpointsbuffersize * sizeof(*portalpointsbuffer));
3772 Mod_BSP_RecursiveNodePortals(loadmodel->brush.data_nodes + loadmodel->brushq1.hulls[0].firstclipnode);
3773 Mem_Free(portalpointsbuffer);
3774 portalpointsbuffer = NULL;
3775 portalpointsbufferoffset = 0;
3776 portalpointsbuffersize = 0;
3777 Mod_BSP_FinalizePortals();
3778 Mem_ExpandableArray_FreeArray(&portalarray);
3781 //Returns PVS data for a given point
3782 //(note: can return NULL)
3783 static unsigned char *Mod_BSP_GetPVS(model_t *model, const vec3_t p)
3786 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
3788 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
3789 if (((mleaf_t *)node)->clusterindex >= 0)
3790 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3795 static void Mod_BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
3799 float d = PlaneDiff(org, node->plane);
3801 node = node->children[0];
3802 else if (d < -radius)
3803 node = node->children[1];
3806 // go down both sides
3807 Mod_BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
3808 node = node->children[1];
3811 // if this leaf is in a cluster, accumulate the pvs bits
3812 if (((mleaf_t *)node)->clusterindex >= 0)
3815 unsigned char *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3816 for (i = 0;i < pvsbytes;i++)
3817 pvsbuffer[i] |= pvs[i];
3821 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
3822 //of the given point.
3823 static int Mod_BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength, qbool merge)
3825 int bytes = model->brush.num_pvsclusterbytes;
3826 bytes = min(bytes, pvsbufferlength);
3827 if (r_novis.integer || r_trippy.integer || !model->brush.num_pvsclusters || !Mod_BSP_GetPVS(model, org))
3829 memset(pvsbuffer, 0xFF, bytes);
3833 memset(pvsbuffer, 0, bytes);
3834 Mod_BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
3838 static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
3843 VectorSubtract(inmaxs, inmins, size);
3844 if (size[0] < mod_q1bsp_zero_hullsize_cutoff.value)
3845 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3846 else if (cmodel->brush.ishlbsp)
3850 if (size[2] < 54) // pick the nearest of 36 or 72
3851 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
3853 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
3856 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
3861 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
3863 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
3865 VectorCopy(inmins, outmins);
3866 VectorAdd(inmins, hull->clip_size, outmaxs);
3869 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);
3871 void Mod_2PSB_Load(model_t *mod, void *buffer, void *bufferend)
3873 mod->brush.isbsp2 = true;
3874 mod->brush.isbsp2rmqe = true; // like bsp2 except leaf/node bounds are 16bit (unexpanded)
3875 mod->modeldatatypestring = "Q1BSP2rmqe";
3876 Mod_Q1BSP_Load(mod, buffer, bufferend);
3879 void Mod_BSP2_Load(model_t *mod, void *buffer, void *bufferend)
3881 mod->brush.isbsp2 = true;
3882 mod->modeldatatypestring = "Q1BSP2";
3883 Mod_Q1BSP_Load(mod, buffer, bufferend);
3886 void Mod_HLBSP_Load(model_t *mod, void *buffer, void *bufferend)
3888 mod->brush.ishlbsp = true;
3889 mod->modeldatatypestring = "HLBSP";
3890 Mod_Q1BSP_Load(mod, buffer, bufferend);
3893 void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
3896 sizebuf_t lumpsb[HEADER_LUMPS];
3898 float dist, modelyawradius, modelradius;
3899 msurface_t *surface;
3900 hullinfo_t hullinfo;
3901 int totalstylesurfaces, totalstyles, stylecounts[256], remapstyles[256];
3902 model_brush_lightstyleinfo_t styleinfo[256];
3904 model_brush_lightstyleinfo_t *lsidatapointer;
3907 MSG_InitReadBuffer(&sb, (unsigned char *)buffer, (unsigned char *)bufferend - (unsigned char *)buffer);
3909 mod->type = mod_brushq1;
3911 mod->brush.skymasking = true;
3912 i = MSG_ReadLittleLong(&sb);
3914 if(!mod->modeldatatypestring)
3915 mod->modeldatatypestring = "Q1BSP";
3917 // fill in hull info
3918 VectorClear (hullinfo.hullsizes[0][0]);
3919 VectorClear (hullinfo.hullsizes[0][1]);
3920 if (mod->brush.ishlbsp)
3922 hullinfo.filehulls = 4;
3923 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
3924 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
3925 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
3926 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
3927 VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
3928 VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
3932 hullinfo.filehulls = 4;
3933 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
3934 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
3935 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
3936 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
3940 for (i = 0; i < HEADER_LUMPS; i++)
3942 int offset = MSG_ReadLittleLong(&sb);
3943 int size = MSG_ReadLittleLong(&sb);
3944 if (offset < 0 || offset + size > sb.cursize)
3945 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);
3946 MSG_InitReadBuffer(&lumpsb[i], sb.data + offset, size);
3949 mod->soundfromcenter = true;
3950 mod->TraceBox = Mod_Q1BSP_TraceBox;
3951 mod->TraceLine = Mod_Q1BSP_TraceLine;
3952 mod->TracePoint = Mod_Q1BSP_TracePoint;
3953 mod->PointSuperContents = Mod_Q1BSP_PointSuperContents;
3954 mod->TraceLineAgainstSurfaces = Mod_Q1BSP_TraceLineAgainstSurfaces;
3955 mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
3956 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3957 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3958 mod->brush.GetPVS = Mod_BSP_GetPVS;
3959 mod->brush.FatPVS = Mod_BSP_FatPVS;
3960 mod->brush.BoxTouchingPVS = Mod_BSP_BoxTouchingPVS;
3961 mod->brush.BoxTouchingLeafPVS = Mod_BSP_BoxTouchingLeafPVS;
3962 mod->brush.BoxTouchingVisibleLeafs = Mod_BSP_BoxTouchingVisibleLeafs;
3963 mod->brush.FindBoxClusters = Mod_BSP_FindBoxClusters;
3964 mod->brush.LightPoint = Mod_BSP_LightPoint;
3965 mod->brush.FindNonSolidLocation = Mod_BSP_FindNonSolidLocation;
3966 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3967 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3968 mod->brush.PointInLeaf = Mod_BSP_PointInLeaf;
3969 mod->Draw = R_Mod_Draw;
3970 mod->DrawDepth = R_Mod_DrawDepth;
3971 mod->DrawDebug = R_Mod_DrawDebug;
3972 mod->DrawPrepass = R_Mod_DrawPrepass;
3973 mod->GetLightInfo = R_Mod_GetLightInfo;
3974 mod->CompileShadowMap = R_Mod_CompileShadowMap;
3975 mod->DrawShadowMap = R_Mod_DrawShadowMap;
3976 mod->DrawLight = R_Mod_DrawLight;
3980 mod->brush.qw_md4sum = 0;
3981 mod->brush.qw_md4sum2 = 0;
3982 for (i = 0;i < HEADER_LUMPS;i++)
3985 if (i == LUMP_ENTITIES)
3987 temp = Com_BlockChecksum(lumpsb[i].data, lumpsb[i].cursize);
3988 mod->brush.qw_md4sum ^= LittleLong(temp);
3989 if (i == LUMP_VISIBILITY || i == LUMP_LEAFS || i == LUMP_NODES)
3991 mod->brush.qw_md4sum2 ^= LittleLong(temp);
3994 Mod_Q1BSP_LoadEntities(&lumpsb[LUMP_ENTITIES]);
3995 Mod_Q1BSP_LoadVertexes(&lumpsb[LUMP_VERTEXES]);
3996 Mod_Q1BSP_LoadEdges(&lumpsb[LUMP_EDGES]);
3997 Mod_Q1BSP_LoadSurfedges(&lumpsb[LUMP_SURFEDGES]);
3998 Mod_Q1BSP_LoadTextures(&lumpsb[LUMP_TEXTURES]);
3999 Mod_Q1BSP_LoadLighting(&lumpsb[LUMP_LIGHTING]);
4000 Mod_Q1BSP_LoadPlanes(&lumpsb[LUMP_PLANES]);
4001 Mod_Q1BSP_LoadTexinfo(&lumpsb[LUMP_TEXINFO]);
4002 Mod_Q1BSP_LoadFaces(&lumpsb[LUMP_FACES]);
4003 Mod_Q1BSP_LoadLeaffaces(&lumpsb[LUMP_MARKSURFACES]);
4004 Mod_Q1BSP_LoadVisibility(&lumpsb[LUMP_VISIBILITY]);
4005 // load submodels before leafs because they contain the number of vis leafs
4006 Mod_BSP_LoadSubmodels(&lumpsb[LUMP_MODELS], &hullinfo);
4007 Mod_Q1BSP_LoadLeafs(&lumpsb[LUMP_LEAFS]);
4008 Mod_Q1BSP_LoadNodes(&lumpsb[LUMP_NODES]);
4009 Mod_Q1BSP_LoadClipnodes(&lumpsb[LUMP_CLIPNODES], &hullinfo);
4011 for (i = 0; i < HEADER_LUMPS; i++)
4012 if (lumpsb[i].readcount != lumpsb[i].cursize && i != LUMP_TEXTURES && i != LUMP_LIGHTING)
4013 Host_Error("Lump %i incorrectly loaded (readcount %i, size %i)\n", i, lumpsb[i].readcount, lumpsb[i].cursize);
4015 // check if the map supports transparent water rendering
4016 loadmodel->brush.supportwateralpha = Mod_Q1BSP_CheckWaterAlphaSupport();
4018 // we don't need the compressed pvs data anymore
4019 if (mod->brushq1.data_compressedpvs)
4020 Mem_Free(mod->brushq1.data_compressedpvs);
4021 mod->brushq1.data_compressedpvs = NULL;
4022 mod->brushq1.num_compressedpvs = 0;
4024 Mod_Q1BSP_MakeHull0();
4025 if (mod_bsp_portalize.integer && cls.state != ca_dedicated)
4026 Mod_BSP_MakePortals();
4028 mod->numframes = 2; // regular and alternate animation
4031 if (loadmodel->brush.numsubmodels)
4032 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
4034 // LadyHavoc: to clear the fog around the original quake submodel code, I
4036 // first of all, some background info on the submodels:
4037 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
4038 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
4039 // now the weird for loop itself:
4040 // the loop functions in an odd way, on each iteration it sets up the
4041 // current 'mod' model (which despite the confusing code IS the model of
4042 // the number i), at the end of the loop it duplicates the model to become
4043 // the next submodel, and loops back to set up the new submodel.
4045 // LadyHavoc: now the explanation of my sane way (which works identically):
4046 // set up the world model, then on each submodel copy from the world model
4047 // and set up the submodel with the respective model info.
4048 totalstylesurfaces = 0;
4050 for (i = 0;i < mod->brush.numsubmodels;i++)
4052 memset(stylecounts, 0, sizeof(stylecounts));
4053 for (k = 0;k < mod->brushq1.submodels[i].numfaces;k++)
4055 surface = mod->data_surfaces + mod->brushq1.submodels[i].firstface + k;
4056 for (j = 0;j < MAXLIGHTMAPS;j++)
4057 stylecounts[surface->lightmapinfo->styles[j]]++;
4059 for (k = 0;k < 255;k++)
4063 totalstylesurfaces += stylecounts[k];
4066 // bones_was_here: using a separate allocation for model_brush_lightstyleinfo_t
4067 // because on a 64-bit machine it no longer has the same alignment requirement as int.
4068 lsidatapointer = Mem_AllocType(mod->mempool, model_brush_lightstyleinfo_t, totalstyles * sizeof(model_brush_lightstyleinfo_t));
4069 datapointer = Mem_AllocType(mod->mempool, int, mod->num_surfaces * sizeof(int) + totalstylesurfaces * sizeof(int));
4070 mod->modelsurfaces_sorted = datapointer;datapointer += mod->num_surfaces;
4071 for (i = 0;i < mod->brush.numsubmodels;i++)
4073 // LadyHavoc: this code was originally at the end of this loop, but
4074 // has been transformed to something more readable at the start here.
4079 // duplicate the basic information
4080 dpsnprintf(name, sizeof(name), "*%i", i);
4081 mod = Mod_FindName(name, loadmodel->name);
4082 // copy the base model to this one
4084 // rename the clone back to its proper name
4085 dp_strlcpy(mod->name, name, sizeof(mod->name));
4086 mod->brush.parentmodel = loadmodel;
4087 // textures and memory belong to the main model
4088 mod->texturepool = NULL;
4089 mod->mempool = NULL;
4090 mod->brush.GetPVS = NULL;
4091 mod->brush.FatPVS = NULL;
4092 mod->brush.BoxTouchingPVS = NULL;
4093 mod->brush.BoxTouchingLeafPVS = NULL;
4094 mod->brush.BoxTouchingVisibleLeafs = NULL;
4095 mod->brush.FindBoxClusters = NULL;
4096 mod->brush.LightPoint = NULL;
4097 mod->brush.AmbientSoundLevelsForPoint = NULL;
4100 mod->brush.submodel = i;
4102 if (loadmodel->brush.submodels)
4103 loadmodel->brush.submodels[i] = mod;
4105 bm = &mod->brushq1.submodels[i];
4107 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
4108 for (j=1 ; j<MAX_MAP_HULLS ; j++)
4110 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
4111 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
4114 mod->submodelsurfaces_start = bm->firstface;
4115 mod->submodelsurfaces_end = bm->firstface + bm->numfaces;
4117 // set node/leaf parents for this submodel
4118 Mod_BSP_LoadNodes_RecursiveSetParent(mod->brush.data_nodes + mod->brushq1.hulls[0].firstclipnode, NULL);
4120 // this has to occur after hull info has been set, as it uses Mod_Q1BSP_PointSuperContents
4121 Mod_Q1BSP_AssignNoShadowSkySurfaces(mod);
4123 // copy the submodel bounds, then enlarge the yaw and rotated bounds according to radius
4124 // (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)
4125 VectorCopy(bm->mins, mod->normalmins);
4126 VectorCopy(bm->maxs, mod->normalmaxs);
4127 dist = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
4128 modelyawradius = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
4129 modelyawradius = dist*dist+modelyawradius*modelyawradius;
4130 modelradius = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
4131 modelradius = modelyawradius + modelradius * modelradius;
4132 modelyawradius = sqrt(modelyawradius);
4133 modelradius = sqrt(modelradius);
4134 mod->yawmins[0] = mod->yawmins[1] = -modelyawradius;
4135 mod->yawmins[2] = mod->normalmins[2];
4136 mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius;
4137 mod->yawmaxs[2] = mod->normalmaxs[2];
4138 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
4139 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
4140 mod->radius = modelradius;
4141 mod->radius2 = modelradius * modelradius;
4143 Mod_SetDrawSkyAndWater(mod);
4145 if (mod->submodelsurfaces_start < mod->submodelsurfaces_end)
4147 // build lightstyle update chains
4148 // (used to rapidly mark lightmapupdateflags on many surfaces
4149 // when d_lightstylevalue changes)
4150 memset(stylecounts, 0, sizeof(stylecounts));
4151 for (k = mod->submodelsurfaces_start;k < mod->submodelsurfaces_end;k++)
4152 for (j = 0;j < MAXLIGHTMAPS;j++)
4153 stylecounts[mod->data_surfaces[k].lightmapinfo->styles[j]]++;
4154 mod->brushq1.num_lightstyles = 0;
4155 for (k = 0;k < 255;k++)
4159 styleinfo[mod->brushq1.num_lightstyles].style = k;
4160 styleinfo[mod->brushq1.num_lightstyles].value = 0;
4161 styleinfo[mod->brushq1.num_lightstyles].numsurfaces = 0;
4162 styleinfo[mod->brushq1.num_lightstyles].surfacelist = datapointer;datapointer += stylecounts[k];
4163 remapstyles[k] = mod->brushq1.num_lightstyles;
4164 mod->brushq1.num_lightstyles++;
4167 for (k = mod->submodelsurfaces_start;k < mod->submodelsurfaces_end;k++)
4169 surface = mod->data_surfaces + k;
4170 for (j = 0;j < MAXLIGHTMAPS;j++)
4172 if (surface->lightmapinfo->styles[j] != 255)
4174 int r = remapstyles[surface->lightmapinfo->styles[j]];
4175 styleinfo[r].surfacelist[styleinfo[r].numsurfaces++] = k;
4179 mod->brushq1.data_lightstyleinfo = lsidatapointer;lsidatapointer += mod->brushq1.num_lightstyles;
4180 memcpy(mod->brushq1.data_lightstyleinfo, styleinfo, mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t));
4184 // LadyHavoc: empty submodel(lacrima.bsp has such a glitch)
4185 Con_Printf(CON_WARN "warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
4187 //mod->brushq1.num_visleafs = bm->visleafs;
4189 // build a Bounding Interval Hierarchy for culling triangles in light rendering
4190 Mod_MakeCollisionBIH(mod, true, &mod->render_bih);
4192 if (mod_q1bsp_polygoncollisions.integer)
4194 mod->collision_bih = mod->render_bih;
4195 // point traces and contents checks still use the bsp tree
4196 mod->TraceLine = Mod_CollisionBIH_TraceLine;
4197 mod->TraceBox = Mod_CollisionBIH_TraceBox;
4198 mod->TraceBrush = Mod_CollisionBIH_TraceBrush;
4199 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLineAgainstSurfaces;
4202 // generate VBOs and other shared data before cloning submodels
4206 Mod_Q1BSP_LoadMapBrushes();
4207 //Mod_Q1BSP_ProcessLightList();
4212 // make the model surface list (used by shadowing/lighting)
4213 Mod_MakeSortedSurfaces(loadmodel);
4215 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);
4218 int Mod_Q2BSP_SuperContentsFromNativeContents(int nativecontents)
4220 int supercontents = 0;
4221 if (nativecontents & CONTENTSQ2_SOLID)
4222 supercontents |= SUPERCONTENTS_SOLID;
4223 if (nativecontents & CONTENTSQ2_WATER)
4224 supercontents |= SUPERCONTENTS_WATER;
4225 if (nativecontents & CONTENTSQ2_SLIME)
4226 supercontents |= SUPERCONTENTS_SLIME;
4227 if (nativecontents & CONTENTSQ2_LAVA)
4228 supercontents |= SUPERCONTENTS_LAVA;
4229 if (nativecontents & CONTENTSQ2_MONSTER)
4230 supercontents |= SUPERCONTENTS_BODY;
4231 if (nativecontents & CONTENTSQ2_DEADMONSTER)
4232 supercontents |= SUPERCONTENTS_CORPSE;
4233 if (nativecontents & CONTENTSQ2_PLAYERCLIP)
4234 supercontents |= SUPERCONTENTS_PLAYERCLIP;
4235 if (nativecontents & CONTENTSQ2_MONSTERCLIP)
4236 supercontents |= SUPERCONTENTS_MONSTERCLIP;
4237 if (!(nativecontents & CONTENTSQ2_TRANSLUCENT))
4238 supercontents |= SUPERCONTENTS_OPAQUE;
4239 return supercontents;
4242 int Mod_Q2BSP_NativeContentsFromSuperContents(int supercontents)
4244 int nativecontents = 0;
4245 if (supercontents & SUPERCONTENTS_SOLID)
4246 nativecontents |= CONTENTSQ2_SOLID;
4247 if (supercontents & SUPERCONTENTS_WATER)
4248 nativecontents |= CONTENTSQ2_WATER;
4249 if (supercontents & SUPERCONTENTS_SLIME)
4250 nativecontents |= CONTENTSQ2_SLIME;
4251 if (supercontents & SUPERCONTENTS_LAVA)
4252 nativecontents |= CONTENTSQ2_LAVA;
4253 if (supercontents & SUPERCONTENTS_BODY)
4254 nativecontents |= CONTENTSQ2_MONSTER;
4255 if (supercontents & SUPERCONTENTS_CORPSE)
4256 nativecontents |= CONTENTSQ2_DEADMONSTER;
4257 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
4258 nativecontents |= CONTENTSQ2_PLAYERCLIP;
4259 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
4260 nativecontents |= CONTENTSQ2_MONSTERCLIP;
4261 if (!(supercontents & SUPERCONTENTS_OPAQUE))
4262 nativecontents |= CONTENTSQ2_TRANSLUCENT;
4263 return nativecontents;
4266 static void Mod_Q2BSP_LoadVisibility(sizebuf_t *sb)
4269 loadmodel->brushq1.num_compressedpvs = 0;
4270 loadmodel->brushq1.data_compressedpvs = NULL;
4271 loadmodel->brush.num_pvsclusters = 0;
4272 loadmodel->brush.num_pvsclusterbytes = 0;
4273 loadmodel->brush.data_pvsclusters = NULL;
4278 count = MSG_ReadLittleLong(sb);
4279 loadmodel->brush.num_pvsclusters = count;
4280 loadmodel->brush.num_pvsclusterbytes = (count+7)>>3;
4281 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, count*loadmodel->brush.num_pvsclusterbytes);
4282 for (i = 0;i < count;i++)
4284 int pvsofs = MSG_ReadLittleLong(sb);
4285 /*int phsofs = */MSG_ReadLittleLong(sb);
4286 // decompress the vis data for this cluster
4287 // (note this accesses the underlying data store of sb, which is kind of evil)
4288 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);
4290 // hush the loading error check later - we had to do random access on this lump, so we didn't read to the end
4291 sb->readcount = sb->cursize;
4294 static void Mod_Q2BSP_LoadNodes(sizebuf_t *sb)
4296 int i, j, count, p, child[2];
4298 int structsize = 28;
4300 if (sb->cursize % structsize)
4301 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
4302 count = sb->cursize / structsize;
4304 Host_Error("Mod_Q2BSP_LoadNodes: missing BSP tree in %s",loadmodel->name);
4305 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
4307 loadmodel->brush.data_nodes = out;
4308 loadmodel->brush.num_nodes = count;
4310 for ( i=0 ; i<count ; i++, out++)
4312 p = MSG_ReadLittleLong(sb);
4313 out->plane = loadmodel->brush.data_planes + p;
4314 child[0] = MSG_ReadLittleLong(sb);
4315 child[1] = MSG_ReadLittleLong(sb);
4316 out->mins[0] = MSG_ReadLittleShort(sb);
4317 out->mins[1] = MSG_ReadLittleShort(sb);
4318 out->mins[2] = MSG_ReadLittleShort(sb);
4319 out->maxs[0] = MSG_ReadLittleShort(sb);
4320 out->maxs[1] = MSG_ReadLittleShort(sb);
4321 out->maxs[2] = MSG_ReadLittleShort(sb);
4322 out->firstsurface = (unsigned short)MSG_ReadLittleShort(sb);
4323 out->numsurfaces = (unsigned short)MSG_ReadLittleShort(sb);
4324 if (out->firstsurface + out->numsurfaces > (unsigned int)loadmodel->num_surfaces)
4326 Con_Printf("Mod_Q2BSP_LoadNodes: invalid surface index range %i+%i (file has only %i surfaces)\n", out->firstsurface, out->numsurfaces, loadmodel->num_surfaces);
4327 out->firstsurface = 0;
4328 out->numsurfaces = 0;
4330 for (j=0 ; j<2 ; j++)
4335 if (p < loadmodel->brush.num_nodes)
4336 out->children[j] = loadmodel->brush.data_nodes + p;
4339 Con_Printf("Mod_Q2BSP_LoadNodes: invalid node index %i (file has only %i nodes)\n", p, loadmodel->brush.num_nodes);
4340 // map it to the solid leaf
4341 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
4346 // get leaf index as a positive value starting at 0 (-1 becomes 0, -2 becomes 1, etc)
4348 if (p < loadmodel->brush.num_leafs)
4349 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + p);
4352 Con_Printf("Mod_Q2BSP_LoadNodes: invalid leaf index %i (file has only %i leafs)\n", p, loadmodel->brush.num_leafs);
4353 // map it to the solid leaf
4354 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
4360 Mod_BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
4363 static void Mod_Q2BSP_LoadTexinfo(sizebuf_t *sb)
4367 int structsize = 76;
4368 int maxtextures = 1024; // hardcoded limit of quake2 engine, so we may as well use it as an upper bound
4369 char filename[MAX_QPATH];
4371 if (sb->cursize % structsize)
4372 Host_Error("Mod_Q2BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
4373 count = sb->cursize / structsize;
4374 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4375 loadmodel->brushq1.texinfo = out;
4376 loadmodel->brushq1.numtexinfo = count;
4377 loadmodel->num_texturesperskin = 0;
4378 loadmodel->data_textures = (texture_t*)Mem_Alloc(loadmodel->mempool, maxtextures * sizeof(texture_t));
4380 for (i = 0;i < count;i++, out++)
4383 for (k = 0;k < 2;k++)
4384 for (j = 0;j < 4;j++)
4385 out->vecs[k][j] = MSG_ReadLittleFloat(sb);
4387 out->q2flags = MSG_ReadLittleLong(sb);
4388 out->q2value = MSG_ReadLittleLong(sb);
4389 MSG_ReadBytes(sb, 32, (unsigned char*)out->q2texture);
4390 out->q2texture[31] = 0; // make absolutely sure it is terminated
4391 out->q2nexttexinfo = MSG_ReadLittleLong(sb);
4393 // find an existing match for the texture if possible
4394 dpsnprintf(filename, sizeof(filename), "textures/%s.wal", out->q2texture);
4395 for (j = 0;j < loadmodel->num_texturesperskin;j++)
4396 if (!strcmp(filename, loadmodel->data_textures[j].name)
4397 && out->q2flags == loadmodel->data_textures[j].q2flags
4398 && out->q2value == loadmodel->data_textures[j].q2value)
4400 // if we don't find the texture, store the new texture
4401 if (j == loadmodel->num_texturesperskin)
4403 if (loadmodel->num_texturesperskin < maxtextures)
4405 texture_t *tx = loadmodel->data_textures + j;
4406 int q2flags = out->q2flags;
4407 unsigned char *walfile = NULL;
4408 fs_offset_t walfilesize = 0;
4409 Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, tx, filename, true, true, TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL);
4410 // now read the .wal file to get metadata (even if a .tga was overriding it, we still need the wal data)
4411 walfile = FS_LoadFile(filename, tempmempool, true, &walfilesize);
4415 LoadWAL_GetMetadata(walfile, (int)walfilesize, &w, &h, NULL, NULL, &tx->q2contents, NULL);
4425 tx->q2flags = out->q2flags;
4426 tx->q2value = out->q2value;
4427 // also modify the texture to have the correct contents and such based on flags
4428 // note that we create multiple texture_t structures if q2flags differs
4429 if (q2flags & Q2SURF_LIGHT)
4431 // doesn't mean anything to us
4433 if (q2flags & Q2SURF_SLICK)
4435 // would be nice to support...
4437 if (q2flags & Q2SURF_SKY)
4439 // sky is a rather specific thing
4440 q2flags &= ~Q2SURF_NODRAW; // quake2 had a slightly different meaning than we have in mind here...
4441 tx->basematerialflags = MATERIALFLAG_SKY;
4442 tx->supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP | SUPERCONTENTS_OPAQUE;
4443 tx->surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
4445 if (q2flags & Q2SURF_WARP)
4447 // we use a scroll instead of a warp
4448 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_FULLBRIGHT;
4449 // if it's also transparent, we can enable the WATERSHADER
4450 // but we do not set the WATERALPHA flag because we don't
4451 // want to honor r_wateralpha in q2bsp
4452 // (it would go against the artistic intent)
4453 if (q2flags & (Q2SURF_TRANS33 | Q2SURF_TRANS66))
4454 tx->basematerialflags |= MATERIALFLAG_WATERSHADER;
4456 if (q2flags & Q2SURF_TRANS33)
4458 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED;
4459 tx->basealpha = 1.0f / 3.0f;
4460 tx->supercontents &= ~SUPERCONTENTS_OPAQUE;
4461 if (tx->q2contents & Q2CONTENTS_SOLID)
4462 tx->q2contents = (tx->q2contents & ~Q2CONTENTS_SOLID) | Q2CONTENTS_WINDOW;
4464 if (q2flags & Q2SURF_TRANS66)
4466 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED;
4467 tx->basealpha = 2.0f / 3.0f;
4468 tx->supercontents &= ~SUPERCONTENTS_OPAQUE;
4469 if (tx->q2contents & Q2CONTENTS_SOLID)
4470 tx->q2contents = (tx->q2contents & ~Q2CONTENTS_SOLID) | Q2CONTENTS_WINDOW;
4472 if ((q2flags & Q2SURF_FLOWING) && tx->materialshaderpass != NULL)
4474 tx->materialshaderpass->tcmods[0].tcmod = Q3TCMOD_SCROLL;
4475 if (q2flags & Q2SURF_WARP)
4476 tx->materialshaderpass->tcmods[0].parms[0] = -0.5f;
4478 tx->materialshaderpass->tcmods[0].parms[0] = -1.6f;
4479 tx->materialshaderpass->tcmods[0].parms[1] = 0.0f;
4481 if (q2flags & Q2SURF_ALPHATEST)
4483 // KMQUAKE2 and other modded engines added this flag for lit alpha tested surfaces
4484 tx->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
4486 else if (q2flags & (Q2SURF_TRANS33 | Q2SURF_TRANS66 | Q2SURF_WARP))
4488 if (!mod_q2bsp_littransparentsurfaces.integer)
4489 tx->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
4491 if (q2flags & Q2SURF_NODRAW)
4493 tx->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
4495 if (tx->q2contents & (Q2CONTENTS_TRANSLUCENT | Q2CONTENTS_MONSTERCLIP | Q2CONTENTS_PLAYERCLIP))
4496 tx->q2contents |= Q2CONTENTS_DETAIL;
4497 if (!(tx->q2contents & (Q2CONTENTS_SOLID | Q2CONTENTS_WINDOW | Q2CONTENTS_AUX | Q2CONTENTS_LAVA | Q2CONTENTS_SLIME | Q2CONTENTS_WATER | Q2CONTENTS_MIST | Q2CONTENTS_PLAYERCLIP | Q2CONTENTS_MONSTERCLIP | Q2CONTENTS_MIST)))
4498 tx->q2contents |= Q2CONTENTS_SOLID;
4499 if (tx->q2flags & (Q2SURF_HINT | Q2SURF_SKIP))
4501 tx->supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(tx->q2contents);
4502 // set the current values to the base values
4503 tx->currentframe = tx;
4504 tx->currentskinframe = tx->materialshaderpass != NULL ? tx->materialshaderpass->skinframes[0] : NULL;
4505 tx->currentmaterialflags = tx->basematerialflags;
4506 loadmodel->num_texturesperskin++;
4507 loadmodel->num_textures = loadmodel->num_texturesperskin;
4511 Con_Printf("Mod_Q2BSP_LoadTexinfo: max textures reached (%i)\n", maxtextures);
4512 j = 0; // use first texture and give up
4515 // store the index we found for this texture
4516 out->textureindex = j;
4519 // realloc the textures array now that we know how many we actually need
4520 loadmodel->data_textures = (texture_t*)Mem_Realloc(loadmodel->mempool, loadmodel->data_textures, loadmodel->num_texturesperskin * sizeof(texture_t));
4522 // now assemble the texture chains
4523 // if we encounter the textures out of order, the later ones won't mark the earlier ones in a sequence, so the earlier
4524 for (i = 0, out = loadmodel->brushq1.texinfo;i < count;i++, out++)
4527 texture_t *t = loadmodel->data_textures + out->textureindex;
4528 t->currentframe = t; // fix the reallocated pointer
4530 // if this is not animated, skip it
4531 // if this is already processed, skip it (part of an existing sequence)
4532 if (out->q2nexttexinfo == 0 || t->animated)
4535 // store the array of frames to use
4536 t->animated = 2; // q2bsp animation
4537 t->anim_total[0] = 0;
4538 t->anim_total[1] = 0;
4539 // gather up to 10 frames (we don't support more)
4540 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)
4542 // detect looping and stop there
4543 if (t->anim_total[0] && loadmodel->brushq1.texinfo[j].textureindex == out->textureindex)
4545 t->anim_frames[0][t->anim_total[0]++] = &loadmodel->data_textures[loadmodel->brushq1.texinfo[j].textureindex];
4547 // we could look for the +a sequence here if this is the +0 sequence,
4548 // but it seems that quake2 did not implement that (even though the
4549 // files exist in the baseq2 content)
4551 // write the frame sequence to all the textures involved (just like
4552 // in the q1bsp loader)
4554 // note that this can overwrite the rest of the sequence - so if the
4555 // start of a sequence is found later than the other parts of the
4556 // sequence, it will go back and rewrite them correctly.
4557 for (k = 0;k < t->anim_total[0];k++)
4559 texture_t *txk = t->anim_frames[0][k];
4560 txk->animated = t->animated;
4561 txk->anim_total[0] = t->anim_total[0];
4562 for (l = 0;l < t->anim_total[0];l++)
4563 txk->anim_frames[0][l] = t->anim_frames[0][l];
4568 static void Mod_Q2BSP_LoadLighting(sizebuf_t *sb)
4570 // LadyHavoc: this fits exactly the same format that we use in .lit files
4571 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize);
4572 MSG_ReadBytes(sb, sb->cursize, loadmodel->brushq1.lightdata);
4575 static void Mod_Q2BSP_LoadLeafs(sizebuf_t *sb)
4578 int i, j, count, firstmarksurface, nummarksurfaces, firstmarkbrush, nummarkbrushes;
4579 int structsize = 28;
4581 if (sb->cursize % structsize)
4582 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
4583 count = sb->cursize / structsize;
4584 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
4586 loadmodel->brush.data_leafs = out;
4587 loadmodel->brush.num_leafs = count;
4589 // FIXME: this function could really benefit from some error checking
4590 for ( i=0 ; i<count ; i++, out++)
4592 out->contents = MSG_ReadLittleLong(sb);
4593 out->clusterindex = MSG_ReadLittleShort(sb);
4594 out->areaindex = MSG_ReadLittleShort(sb);
4595 out->mins[0] = MSG_ReadLittleShort(sb);
4596 out->mins[1] = MSG_ReadLittleShort(sb);
4597 out->mins[2] = MSG_ReadLittleShort(sb);
4598 out->maxs[0] = MSG_ReadLittleShort(sb);
4599 out->maxs[1] = MSG_ReadLittleShort(sb);
4600 out->maxs[2] = MSG_ReadLittleShort(sb);
4602 firstmarksurface = (unsigned short)MSG_ReadLittleShort(sb);
4603 nummarksurfaces = (unsigned short)MSG_ReadLittleShort(sb);
4604 firstmarkbrush = (unsigned short)MSG_ReadLittleShort(sb);
4605 nummarkbrushes = (unsigned short)MSG_ReadLittleShort(sb);
4607 for (j = 0;j < 4;j++)
4608 out->ambient_sound_level[j] = 0;
4610 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
4612 Con_Print("Mod_Q2BSP_LoadLeafs: invalid clusterindex\n");
4613 out->clusterindex = -1;
4616 if (firstmarksurface >= 0 && firstmarksurface + nummarksurfaces <= loadmodel->brush.num_leafsurfaces)
4618 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + firstmarksurface;
4619 out->numleafsurfaces = nummarksurfaces;
4623 Con_Printf("Mod_Q2BSP_LoadLeafs: invalid leafsurface range %i:%i outside range %i:%i\n", firstmarksurface, firstmarksurface+nummarksurfaces, 0, loadmodel->brush.num_leafsurfaces);
4624 out->firstleafsurface = NULL;
4625 out->numleafsurfaces = 0;
4628 if (firstmarkbrush >= 0 && firstmarkbrush + nummarkbrushes <= loadmodel->brush.num_leafbrushes)
4630 out->firstleafbrush = loadmodel->brush.data_leafbrushes + firstmarkbrush;
4631 out->numleafbrushes = nummarkbrushes;
4635 Con_Printf("Mod_Q2BSP_LoadLeafs: invalid leafbrush range %i:%i outside range %i:%i\n", firstmarkbrush, firstmarkbrush+nummarkbrushes, 0, loadmodel->brush.num_leafbrushes);
4636 out->firstleafbrush = NULL;
4637 out->numleafbrushes = 0;
4642 static void Mod_Q2BSP_LoadLeafBrushes(sizebuf_t *sb)
4647 if (sb->cursize % structsize)
4648 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
4649 loadmodel->brush.num_leafbrushes = sb->cursize / structsize;
4650 loadmodel->brush.data_leafbrushes = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafbrushes * sizeof(int));
4652 for (i = 0;i < loadmodel->brush.num_leafbrushes;i++)
4654 j = (unsigned short) MSG_ReadLittleShort(sb);
4655 if (j >= loadmodel->brush.num_brushes)
4656 Host_Error("Mod_Q1BSP_LoadLeafBrushes: bad brush number");
4657 loadmodel->brush.data_leafbrushes[i] = j;
4661 static void Mod_Q2BSP_LoadBrushSides(sizebuf_t *sb)
4663 q3mbrushside_t *out;
4667 if (sb->cursize % structsize)
4668 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4669 count = sb->cursize / structsize;
4670 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4672 loadmodel->brush.data_brushsides = out;
4673 loadmodel->brush.num_brushsides = count;
4675 for (i = 0;i < count;i++, out++)
4677 n = (unsigned short)MSG_ReadLittleShort(sb);
4678 if (n < 0 || n >= loadmodel->brush.num_planes)
4679 Host_Error("Mod_Q2BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
4680 out->plane = loadmodel->brush.data_planes + n;
4681 n = MSG_ReadLittleShort(sb);
4684 if (n >= loadmodel->brushq1.numtexinfo)
4685 Host_Error("Mod_Q2BSP_LoadBrushSides: invalid texinfo index %i (%i texinfos)", n, loadmodel->brushq1.numtexinfo);
4686 out->texture = loadmodel->data_textures + loadmodel->brushq1.texinfo[n].textureindex;
4690 //Con_Printf("Mod_Q2BSP_LoadBrushSides: brushside %i has texinfo index %i < 0, changing to generic texture!\n", i, n);
4691 out->texture = &mod_q1bsp_texture_solid;
4696 static void Mod_Q2BSP_LoadBrushes(sizebuf_t *sb)
4699 int i, j, firstside, numsides, contents, count, maxplanes, q3surfaceflags, supercontents;
4700 colplanef_t *planes;
4701 int structsize = 12;
4702 qbool brushmissingtextures;
4703 int numbrushesmissingtextures = 0;
4704 int numcreatedtextures = 0;
4706 if (sb->cursize % structsize)
4707 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4708 count = sb->cursize / structsize;
4709 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4711 loadmodel->brush.data_brushes = out;
4712 loadmodel->brush.num_brushes = count;
4717 for (i = 0; i < count; i++, out++)
4719 firstside = MSG_ReadLittleLong(sb);
4720 numsides = MSG_ReadLittleLong(sb);
4721 contents = MSG_ReadLittleLong(sb);
4722 if (firstside < 0 || firstside + numsides > loadmodel->brush.num_brushsides)
4723 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", firstside, firstside + numsides, loadmodel->brush.num_brushsides);
4725 out->firstbrushside = loadmodel->brush.data_brushsides + firstside;
4726 out->numbrushsides = numsides;
4727 // convert the contents to our values
4728 supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(contents);
4730 // problem: q2bsp brushes have contents but not a texture
4731 // problem: q2bsp brushsides *may* have a texture or may not
4732 // problem: all brushsides and brushes must have a texture for trace_hittexture functionality to work, and the collision code is engineered around this assumption
4733 // solution: nasty hacks
4734 brushmissingtextures = false;
4735 out->texture = NULL;
4736 for (j = 0; j < out->numbrushsides; j++)
4738 if (out->firstbrushside[j].texture == &mod_q1bsp_texture_solid)
4739 brushmissingtextures = true;
4742 // if we can find a matching texture on a brush side we can use it instead of creating one
4743 if (out->firstbrushside[j].texture->supercontents == supercontents)
4744 out->texture = out->firstbrushside[j].texture;
4747 if (brushmissingtextures || out->texture == NULL)
4749 numbrushesmissingtextures++;
4750 // if we didn't find any appropriate texture (matching contents), we'll have to create one
4751 // we could search earlier ones for a matching one but that can be slow
4752 if (out->texture == NULL)
4754 texture_t *validtexture;
4755 validtexture = (texture_t *)Mem_Alloc(loadmodel->mempool, sizeof(texture_t));
4756 dpsnprintf(validtexture->name, sizeof(validtexture->name), "brushcollision%i", numcreatedtextures);
4757 validtexture->surfaceflags = 0;
4758 validtexture->supercontents = supercontents;
4759 numcreatedtextures++;
4760 out->texture = validtexture;
4762 // out->texture now contains a texture with appropriate contents, copy onto any missing sides
4763 for (j = 0; j < out->numbrushsides; j++)
4764 if (out->firstbrushside[j].texture == &mod_q1bsp_texture_solid)
4765 out->firstbrushside[j].texture = out->texture;
4768 // make a colbrush from the brush
4770 // make a list of mplane_t structs to construct a colbrush from
4771 if (maxplanes < out->numbrushsides)
4773 maxplanes = out->numbrushsides;
4776 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
4778 for (j = 0;j < out->numbrushsides;j++)
4780 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4781 planes[j].dist = out->firstbrushside[j].plane->dist;
4782 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
4783 planes[j].texture = out->firstbrushside[j].texture;
4784 q3surfaceflags |= planes[j].q3surfaceflags;
4786 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents, q3surfaceflags, out->texture, true);
4788 // this whole loop can take a while (e.g. on redstarrepublic4)
4789 CL_KeepaliveMessage(false);
4793 if (numcreatedtextures)
4794 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);
4797 static void Mod_Q2BSP_LoadPOP(sizebuf_t *sb)
4799 // 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)
4800 sb->readcount = sb->cursize;
4803 static void Mod_Q2BSP_LoadAreas(sizebuf_t *sb)
4805 // we currently don't use areas, they represent closable doors as vis blockers
4806 sb->readcount = sb->cursize;
4809 static void Mod_Q2BSP_LoadAreaPortals(sizebuf_t *sb)
4811 // we currently don't use areas, they represent closable doors as vis blockers
4812 sb->readcount = sb->cursize;
4815 static void Mod_Q2BSP_FindSubmodelBrushRange_r(model_t *mod, mnode_t *node, int *first, int *last)
4821 Mod_Q2BSP_FindSubmodelBrushRange_r(mod, node->children[0], first, last);
4822 node = node->children[1];
4824 leaf = (mleaf_t*)node;
4825 for (i = 0;i < leaf->numleafbrushes;i++)
4827 int brushnum = leaf->firstleafbrush[i];
4828 if (*first > brushnum)
4830 if (*last < brushnum)
4835 static void Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
4838 sizebuf_t lumpsb[Q2HEADER_LUMPS];
4840 float dist, modelyawradius, modelradius;
4841 msurface_t *surface;
4842 int totalstylesurfaces, totalstyles, stylecounts[256], remapstyles[256];
4843 model_brush_lightstyleinfo_t styleinfo[256];
4845 model_brush_lightstyleinfo_t *lsidatapointer;
4848 MSG_InitReadBuffer(&sb, (unsigned char *)buffer, (unsigned char *)bufferend - (unsigned char *)buffer);
4850 mod->type = mod_brushq2;
4852 mod->brush.ishlbsp = false;
4853 mod->brush.isbsp2rmqe = false;
4854 mod->brush.isbsp2 = false;
4855 mod->brush.isq2bsp = true; // q1bsp loaders mostly work but we need a few tweaks
4856 mod->brush.isq3bsp = false;
4857 mod->brush.skymasking = true;
4858 mod->modeldatatypestring = "Q2BSP";
4860 i = MSG_ReadLittleLong(&sb);
4861 if (i != Q2BSPMAGIC)
4862 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
4864 i = MSG_ReadLittleLong(&sb);
4865 if (i != Q2BSPVERSION)
4866 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
4869 for (i = 0; i < Q2HEADER_LUMPS; i++)
4871 int offset = MSG_ReadLittleLong(&sb);
4872 int size = MSG_ReadLittleLong(&sb);
4873 if (offset < 0 || offset + size > sb.cursize)
4874 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);
4875 MSG_InitReadBuffer(&lumpsb[i], sb.data + offset, size);
4878 mod->soundfromcenter = true;
4879 mod->TracePoint = Mod_CollisionBIH_TracePoint;
4880 mod->TraceLine = Mod_CollisionBIH_TraceLine;
4881 mod->TraceBox = Mod_CollisionBIH_TraceBox;
4882 mod->TraceBrush = Mod_CollisionBIH_TraceBrush;
4883 mod->PointSuperContents = Mod_CollisionBIH_PointSuperContents;
4884 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
4885 mod->brush.TraceLineOfSight = Mod_Q3BSP_TraceLineOfSight;
4886 mod->brush.SuperContentsFromNativeContents = Mod_Q2BSP_SuperContentsFromNativeContents;
4887 mod->brush.NativeContentsFromSuperContents = Mod_Q2BSP_NativeContentsFromSuperContents;
4888 mod->brush.GetPVS = Mod_BSP_GetPVS;
4889 mod->brush.FatPVS = Mod_BSP_FatPVS;
4890 mod->brush.BoxTouchingPVS = Mod_BSP_BoxTouchingPVS;
4891 mod->brush.BoxTouchingLeafPVS = Mod_BSP_BoxTouchingLeafPVS;
4892 mod->brush.BoxTouchingVisibleLeafs = Mod_BSP_BoxTouchingVisibleLeafs;
4893 mod->brush.FindBoxClusters = Mod_BSP_FindBoxClusters;
4894 mod->brush.LightPoint = Mod_BSP_LightPoint;
4895 mod->brush.FindNonSolidLocation = Mod_BSP_FindNonSolidLocation;
4896 mod->brush.AmbientSoundLevelsForPoint = NULL;
4897 mod->brush.RoundUpToHullSize = NULL;
4898 mod->brush.PointInLeaf = Mod_BSP_PointInLeaf;
4899 mod->Draw = R_Mod_Draw;
4900 mod->DrawDepth = R_Mod_DrawDepth;
4901 mod->DrawDebug = R_Mod_DrawDebug;
4902 mod->DrawPrepass = R_Mod_DrawPrepass;
4903 mod->GetLightInfo = R_Mod_GetLightInfo;
4904 mod->CompileShadowMap = R_Mod_CompileShadowMap;
4905 mod->DrawShadowMap = R_Mod_DrawShadowMap;
4906 mod->DrawLight = R_Mod_DrawLight;
4910 mod->brush.qw_md4sum = 0;
4911 mod->brush.qw_md4sum2 = 0;
4912 for (i = 0;i < Q2HEADER_LUMPS;i++)
4915 if (i == Q2LUMP_ENTITIES)
4917 temp = Com_BlockChecksum(lumpsb[i].data, lumpsb[i].cursize);
4918 mod->brush.qw_md4sum ^= LittleLong(temp);
4919 if (i == Q2LUMP_VISIBILITY || i == Q2LUMP_LEAFS || i == Q2LUMP_NODES)
4921 mod->brush.qw_md4sum2 ^= LittleLong(temp);
4924 // many of these functions are identical to Q1 loaders, so we use those where possible
4925 Mod_Q1BSP_LoadEntities(&lumpsb[Q2LUMP_ENTITIES]);
4926 Mod_Q1BSP_LoadVertexes(&lumpsb[Q2LUMP_VERTEXES]);
4927 Mod_Q1BSP_LoadEdges(&lumpsb[Q2LUMP_EDGES]);
4928 Mod_Q1BSP_LoadSurfedges(&lumpsb[Q2LUMP_SURFEDGES]);
4929 Mod_Q2BSP_LoadLighting(&lumpsb[Q2LUMP_LIGHTING]);
4930 Mod_Q1BSP_LoadPlanes(&lumpsb[Q2LUMP_PLANES]);
4931 Mod_Q2BSP_LoadTexinfo(&lumpsb[Q2LUMP_TEXINFO]);
4932 Mod_Q2BSP_LoadBrushSides(&lumpsb[Q2LUMP_BRUSHSIDES]);
4933 Mod_Q2BSP_LoadBrushes(&lumpsb[Q2LUMP_BRUSHES]);
4934 Mod_Q1BSP_LoadFaces(&lumpsb[Q2LUMP_FACES]);
4935 Mod_Q1BSP_LoadLeaffaces(&lumpsb[Q2LUMP_LEAFFACES]);
4936 Mod_Q2BSP_LoadLeafBrushes(&lumpsb[Q2LUMP_LEAFBRUSHES]);
4937 Mod_Q2BSP_LoadVisibility(&lumpsb[Q2LUMP_VISIBILITY]);
4938 Mod_Q2BSP_LoadPOP(&lumpsb[Q2LUMP_POP]);
4939 Mod_Q2BSP_LoadAreas(&lumpsb[Q2LUMP_AREAS]);
4940 Mod_Q2BSP_LoadAreaPortals(&lumpsb[Q2LUMP_AREAPORTALS]);
4941 Mod_Q2BSP_LoadLeafs(&lumpsb[Q2LUMP_LEAFS]);
4942 Mod_Q2BSP_LoadNodes(&lumpsb[Q2LUMP_NODES]);
4943 Mod_BSP_LoadSubmodels(&lumpsb[Q2LUMP_MODELS], NULL);
4945 for (i = 0; i < Q2HEADER_LUMPS; i++)
4946 if (lumpsb[i].readcount != lumpsb[i].cursize)
4947 Host_Error("Lump %i incorrectly loaded (readcount %i, size %i)\n", i, lumpsb[i].readcount, lumpsb[i].cursize);
4949 // we don't actually set MATERIALFLAG_WATERALPHA on anything, so this
4950 // doesn't enable the cvar, just indicates that transparent water is OK
4951 loadmodel->brush.supportwateralpha = true;
4953 // we don't need the compressed pvs data anymore
4954 if (mod->brushq1.data_compressedpvs)
4955 Mem_Free(mod->brushq1.data_compressedpvs);
4956 mod->brushq1.data_compressedpvs = NULL;
4957 mod->brushq1.num_compressedpvs = 0;
4959 // the MakePortals code works fine on the q2bsp data as well
4960 if (mod_bsp_portalize.integer && cls.state != ca_dedicated)
4961 Mod_BSP_MakePortals();
4963 mod->numframes = 0; // q2bsp animations are kind of special, frame is unbounded...
4966 if (loadmodel->brush.numsubmodels)
4967 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
4969 totalstylesurfaces = 0;
4971 for (i = 0;i < mod->brush.numsubmodels;i++)
4973 memset(stylecounts, 0, sizeof(stylecounts));
4974 for (k = 0;k < mod->brushq1.submodels[i].numfaces;k++)
4976 surface = mod->data_surfaces + mod->brushq1.submodels[i].firstface + k;
4977 for (j = 0;j < MAXLIGHTMAPS;j++)
4978 stylecounts[surface->lightmapinfo->styles[j]]++;
4980 for (k = 0;k < 255;k++)
4984 totalstylesurfaces += stylecounts[k];
4987 // bones_was_here: using a separate allocation for model_brush_lightstyleinfo_t
4988 // because on a 64-bit machine it no longer has the same alignment requirement as int.
4989 lsidatapointer = Mem_AllocType(mod->mempool, model_brush_lightstyleinfo_t, totalstyles * sizeof(model_brush_lightstyleinfo_t));
4990 datapointer = Mem_AllocType(mod->mempool, int, mod->num_surfaces * sizeof(int) + totalstylesurfaces * sizeof(int));
4991 mod->modelsurfaces_sorted = datapointer; datapointer += mod->num_surfaces;
4992 // set up the world model, then on each submodel copy from the world model
4993 // and set up the submodel with the respective model info.
4995 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
4997 mnode_t *rootnode = NULL;
4998 int firstbrush = loadmodel->brush.num_brushes, lastbrush = 0;
5002 // duplicate the basic information
5003 dpsnprintf(name, sizeof(name), "*%i", i);
5004 mod = Mod_FindName(name, loadmodel->name);
5005 // copy the base model to this one
5007 // rename the clone back to its proper name
5008 dp_strlcpy(mod->name, name, sizeof(mod->name));
5009 mod->brush.parentmodel = loadmodel;
5010 // textures and memory belong to the main model
5011 mod->texturepool = NULL;
5012 mod->mempool = NULL;
5013 mod->brush.GetPVS = NULL;
5014 mod->brush.FatPVS = NULL;
5015 mod->brush.BoxTouchingPVS = NULL;
5016 mod->brush.BoxTouchingLeafPVS = NULL;
5017 mod->brush.BoxTouchingVisibleLeafs = NULL;
5018 mod->brush.FindBoxClusters = NULL;
5019 mod->brush.LightPoint = NULL;
5020 mod->brush.AmbientSoundLevelsForPoint = NULL;
5022 mod->brush.submodel = i;
5023 if (loadmodel->brush.submodels)
5024 loadmodel->brush.submodels[i] = mod;
5026 bm = &mod->brushq1.submodels[i];
5028 // we store the headnode (there's only one in Q2BSP) as if it were the first hull
5029 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
5031 mod->submodelsurfaces_start = bm->firstface;
5032 mod->submodelsurfaces_end = bm->firstface + bm->numfaces;
5034 // set node/leaf parents for this submodel
5035 // note: if the root of this submodel is a leaf (headnode[0] < 0) then there is nothing to do...
5036 // (this happens in base3.bsp)
5037 if (bm->headnode[0] >= 0)
5038 rootnode = mod->brush.data_nodes + bm->headnode[0];
5040 rootnode = (mnode_t*)(mod->brush.data_leafs + -1 - bm->headnode[0]);
5041 Mod_BSP_LoadNodes_RecursiveSetParent(rootnode, NULL);
5043 // make the model surface list (used by shadowing/lighting)
5044 Mod_Q2BSP_FindSubmodelBrushRange_r(mod, rootnode, &firstbrush, &lastbrush);
5045 if (firstbrush <= lastbrush)
5047 mod->firstmodelbrush = firstbrush;
5048 mod->nummodelbrushes = lastbrush + 1 - firstbrush;
5052 mod->firstmodelbrush = 0;
5053 mod->nummodelbrushes = 0;
5056 VectorCopy(bm->mins, mod->normalmins);
5057 VectorCopy(bm->maxs, mod->normalmaxs);
5058 dist = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
5059 modelyawradius = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
5060 modelyawradius = dist*dist+modelyawradius*modelyawradius;
5061 modelradius = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
5062 modelradius = modelyawradius + modelradius * modelradius;
5063 modelyawradius = sqrt(modelyawradius);
5064 modelradius = sqrt(modelradius);
5065 mod->yawmins[0] = mod->yawmins[1] = -modelyawradius;
5066 mod->yawmins[2] = mod->normalmins[2];
5067 mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius;
5068 mod->yawmaxs[2] = mod->normalmaxs[2];
5069 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
5070 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
5071 mod->radius = modelradius;
5072 mod->radius2 = modelradius * modelradius;
5074 Mod_SetDrawSkyAndWater(mod);
5076 // build lightstyle lists for quick marking of dirty lightmaps when lightstyles flicker
5077 if (mod->submodelsurfaces_start < mod->submodelsurfaces_end)
5079 // build lightstyle update chains
5080 // (used to rapidly mark lightmapupdateflags on many surfaces
5081 // when d_lightstylevalue changes)
5082 memset(stylecounts, 0, sizeof(stylecounts));
5083 for (k = mod->submodelsurfaces_start;k < mod->submodelsurfaces_end;k++)
5084 for (j = 0;j < MAXLIGHTMAPS;j++)
5085 stylecounts[mod->data_surfaces[k].lightmapinfo->styles[j]]++;
5086 mod->brushq1.num_lightstyles = 0;
5087 for (k = 0;k < 255;k++)
5091 styleinfo[mod->brushq1.num_lightstyles].style = k;
5092 styleinfo[mod->brushq1.num_lightstyles].value = 0;
5093 styleinfo[mod->brushq1.num_lightstyles].numsurfaces = 0;
5094 styleinfo[mod->brushq1.num_lightstyles].surfacelist = datapointer;datapointer += stylecounts[k];
5095 remapstyles[k] = mod->brushq1.num_lightstyles;
5096 mod->brushq1.num_lightstyles++;
5099 for (k = mod->submodelsurfaces_start;k < mod->submodelsurfaces_end;k++)
5101 surface = mod->data_surfaces + k;
5102 for (j = 0;j < MAXLIGHTMAPS;j++)
5104 if (surface->lightmapinfo->styles[j] != 255)
5106 int r = remapstyles[surface->lightmapinfo->styles[j]];
5107 styleinfo[r].surfacelist[styleinfo[r].numsurfaces++] = k;
5111 mod->brushq1.data_lightstyleinfo = lsidatapointer;lsidatapointer += mod->brushq1.num_lightstyles;
5112 memcpy(mod->brushq1.data_lightstyleinfo, styleinfo, mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t));
5116 Con_Printf(CON_WARN "warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
5118 //mod->brushq1.num_visleafs = bm->visleafs;
5120 // build a Bounding Interval Hierarchy for culling triangles in light rendering
5121 Mod_MakeCollisionBIH(mod, false, &mod->collision_bih);
5123 // build a Bounding Interval Hierarchy for culling brushes in collision detection
5124 Mod_MakeCollisionBIH(mod, true, &mod->render_bih);
5126 // generate VBOs and other shared data before cloning submodels
5132 // make the model surface list (used by shadowing/lighting)
5133 Mod_MakeSortedSurfaces(loadmodel);
5135 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);
5138 static int Mod_Q3BSP_SuperContentsFromNativeContents(int nativecontents);
5139 static int Mod_Q3BSP_NativeContentsFromSuperContents(int supercontents);
5141 static void Mod_Q3BSP_LoadEntities(lump_t *l)
5144 char key[128], value[MAX_INPUTLINE];
5146 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
5147 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
5148 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
5151 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen + 1);
5152 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
5153 loadmodel->brush.entities[l->filelen] = 0;
5154 data = loadmodel->brush.entities;
5155 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
5156 // VorteX: q3map2 FS-R generates tangentspace deluxemaps for q3bsp and sets 'deluxeMaps' key
5157 loadmodel->brushq3.deluxemapping = false;
5158 if (data && COM_ParseToken_Simple(&data, false, false, true) && com_token[0] == '{')
5162 if (!COM_ParseToken_Simple(&data, false, false, true))
5164 if (com_token[0] == '}')
5165 break; // end of worldspawn
5166 if (com_token[0] == '_')
5167 dp_strlcpy(key, com_token + 1, sizeof(key));
5169 dp_strlcpy(key, com_token, sizeof(key));
5170 while (key[strlen(key)-1] == ' ') // remove trailing spaces
5171 key[strlen(key)-1] = 0;
5172 if (!COM_ParseToken_Simple(&data, false, false, true))
5174 dp_strlcpy(value, com_token, sizeof(value));
5175 if (!strcasecmp("gridsize", key)) // this one is case insensitive to 100% match q3map2
5177 #if _MSC_VER >= 1400
5178 #define sscanf sscanf_s
5181 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
5182 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
5184 VectorSet(v, 64, 64, 128);
5185 if(sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) != 3)
5186 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]);
5187 if (v[0] != 0 && v[1] != 0 && v[2] != 0)
5188 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
5191 else if (!strcmp("deluxeMaps", key))
5193 if (!strcmp(com_token, "1"))
5195 loadmodel->brushq3.deluxemapping = true;
5196 loadmodel->brushq3.deluxemapping_modelspace = true;
5198 else if (!strcmp(com_token, "2"))
5200 loadmodel->brushq3.deluxemapping = true;
5201 loadmodel->brushq3.deluxemapping_modelspace = false;
5208 static void Mod_Q3BSP_LoadTextures(lump_t *l)
5214 in = (q3dtexture_t *)(mod_base + l->fileofs);
5215 if (l->filelen % sizeof(*in))
5216 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
5217 count = l->filelen / sizeof(*in);
5218 out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5220 loadmodel->data_textures = out;
5221 loadmodel->num_textures = count;
5222 loadmodel->num_texturesperskin = loadmodel->num_textures;
5224 for (i = 0;i < count;i++)
5226 out[i].surfaceflags = LittleLong(in[i].surfaceflags);
5227 out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(LittleLong(in[i].contents));
5228 Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, out + i, in[i].name, true, true, TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL);
5229 // restore the surfaceflags and supercontents
5230 out[i].surfaceflags = LittleLong(in[i].surfaceflags);
5231 out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(LittleLong(in[i].contents));
5235 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
5241 in = (q3dplane_t *)(mod_base + l->fileofs);
5242 if (l->filelen % sizeof(*in))
5243 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
5244 count = l->filelen / sizeof(*in);
5245 out = (mplane_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5247 loadmodel->brush.data_planes = out;
5248 loadmodel->brush.num_planes = count;
5250 for (i = 0;i < count;i++, in++, out++)
5252 out->normal[0] = LittleFloat(in->normal[0]);
5253 out->normal[1] = LittleFloat(in->normal[1]);
5254 out->normal[2] = LittleFloat(in->normal[2]);
5255 out->dist = LittleFloat(in->dist);
5260 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
5263 q3mbrushside_t *out;
5266 in = (q3dbrushside_t *)(mod_base + l->fileofs);
5267 if (l->filelen % sizeof(*in))
5268 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
5269 count = l->filelen / sizeof(*in);
5270 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5272 loadmodel->brush.data_brushsides = out;
5273 loadmodel->brush.num_brushsides = count;
5275 for (i = 0;i < count;i++, in++, out++)
5277 n = LittleLong(in->planeindex);
5278 if (n < 0 || n >= loadmodel->brush.num_planes)
5279 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5280 out->plane = loadmodel->brush.data_planes + n;
5281 n = LittleLong(in->textureindex);
5282 if (n < 0 || n >= loadmodel->num_textures)
5283 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
5284 out->texture = loadmodel->data_textures + n;
5288 static void Mod_Q3BSP_LoadBrushSides_IG(lump_t *l)
5290 q3dbrushside_ig_t *in;
5291 q3mbrushside_t *out;
5294 in = (q3dbrushside_ig_t *)(mod_base + l->fileofs);
5295 if (l->filelen % sizeof(*in))
5296 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
5297 count = l->filelen / sizeof(*in);
5298 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5300 loadmodel->brush.data_brushsides = out;
5301 loadmodel->brush.num_brushsides = count;
5303 for (i = 0;i < count;i++, in++, out++)
5305 n = LittleLong(in->planeindex);
5306 if (n < 0 || n >= loadmodel->brush.num_planes)
5307 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5308 out->plane = loadmodel->brush.data_planes + n;
5309 n = LittleLong(in->textureindex);
5310 if (n < 0 || n >= loadmodel->num_textures)
5311 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
5312 out->texture = loadmodel->data_textures + n;
5316 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
5320 int i, j, n, c, count, maxplanes, q3surfaceflags;
5321 colplanef_t *planes;
5323 in = (q3dbrush_t *)(mod_base + l->fileofs);
5324 if (l->filelen % sizeof(*in))
5325 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
5326 count = l->filelen / sizeof(*in);
5327 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5329 loadmodel->brush.data_brushes = out;
5330 loadmodel->brush.num_brushes = count;
5335 for (i = 0;i < count;i++, in++, out++)
5337 n = LittleLong(in->firstbrushside);
5338 c = LittleLong(in->numbrushsides);
5339 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
5340 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", n, n + c, loadmodel->brush.num_brushsides);
5341 out->firstbrushside = loadmodel->brush.data_brushsides + n;
5342 out->numbrushsides = c;
5343 n = LittleLong(in->textureindex);
5344 if (n < 0 || n >= loadmodel->num_textures)
5345 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
5346 out->texture = loadmodel->data_textures + n;
5348 // make a list of mplane_t structs to construct a colbrush from
5349 if (maxplanes < out->numbrushsides)
5351 maxplanes = out->numbrushsides;
5354 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
5357 for (j = 0;j < out->numbrushsides;j++)
5359 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
5360 planes[j].dist = out->firstbrushside[j].plane->dist;
5361 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
5362 planes[j].texture = out->firstbrushside[j].texture;
5363 q3surfaceflags |= planes[j].q3surfaceflags;
5365 // make the colbrush from the planes
5366 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents, q3surfaceflags, out->texture, true);
5368 // this whole loop can take a while (e.g. on redstarrepublic4)
5369 CL_KeepaliveMessage(false);
5375 static void Mod_Q3BSP_LoadEffects(lump_t *l)
5381 in = (q3deffect_t *)(mod_base + l->fileofs);
5382 if (l->filelen % sizeof(*in))
5383 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
5384 count = l->filelen / sizeof(*in);
5385 out = (q3deffect_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5387 loadmodel->brushq3.data_effects = out;
5388 loadmodel->brushq3.num_effects = count;
5390 for (i = 0;i < count;i++, in++, out++)
5392 dp_strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
5393 n = LittleLong(in->brushindex);
5394 if (n >= loadmodel->brush.num_brushes)
5396 Con_Printf("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes), setting to -1\n", n, loadmodel->brush.num_brushes);
5399 out->brushindex = n;
5400 out->unknown = LittleLong(in->unknown);
5404 static void Mod_Q3BSP_LoadVertices(lump_t *l)
5409 in = (q3dvertex_t *)(mod_base + l->fileofs);
5410 if (l->filelen % sizeof(*in))
5411 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
5412 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
5413 loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 3 + 2 + 2 + 4)));
5414 loadmodel->brushq3.data_normal3f = loadmodel->brushq3.data_vertex3f + count * 3;
5415 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_normal3f + count * 3;
5416 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
5417 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
5419 for (i = 0;i < count;i++, in++)
5421 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
5422 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
5423 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
5424 loadmodel->brushq3.data_normal3f[i * 3 + 0] = LittleFloat(in->normal3f[0]);
5425 loadmodel->brushq3.data_normal3f[i * 3 + 1] = LittleFloat(in->normal3f[1]);
5426 loadmodel->brushq3.data_normal3f[i * 3 + 2] = LittleFloat(in->normal3f[2]);
5427 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
5428 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
5429 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
5430 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
5431 // svector/tvector are calculated later in face loading
5432 if(mod_q3bsp_sRGBlightmaps.integer)
5434 // if lightmaps are sRGB, vertex colors are sRGB too, so we need to linearize them
5435 // note: when this is in use, lightmap color 128 is no longer neutral, but "sRGB half power" is
5436 // working like this may be odd, but matches q3map2 -gamma 2.2
5437 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5439 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
5440 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
5441 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
5442 // we fix the brightness consistently via lightmapscale
5446 loadmodel->brushq3.data_color4f[i * 4 + 0] = Image_LinearFloatFromsRGB(in->color4ub[0]);
5447 loadmodel->brushq3.data_color4f[i * 4 + 1] = Image_LinearFloatFromsRGB(in->color4ub[1]);
5448 loadmodel->brushq3.data_color4f[i * 4 + 2] = Image_LinearFloatFromsRGB(in->color4ub[2]);
5453 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5455 loadmodel->brushq3.data_color4f[i * 4 + 0] = Image_sRGBFloatFromLinear_Lightmap(in->color4ub[0]);
5456 loadmodel->brushq3.data_color4f[i * 4 + 1] = Image_sRGBFloatFromLinear_Lightmap(in->color4ub[1]);
5457 loadmodel->brushq3.data_color4f[i * 4 + 2] = Image_sRGBFloatFromLinear_Lightmap(in->color4ub[2]);
5461 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
5462 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
5463 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
5466 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
5467 if(in->color4ub[0] != 255 || in->color4ub[1] != 255 || in->color4ub[2] != 255)
5468 loadmodel->lit = true;
5472 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
5478 in = (int *)(mod_base + l->fileofs);
5479 if (l->filelen % sizeof(int[3]))
5480 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
5481 count = l->filelen / sizeof(*in);
5483 if(!loadmodel->brushq3.num_vertices)
5486 Con_Printf("Mod_Q3BSP_LoadTriangles: %s has triangles but no vertexes, broken compiler, ignoring problem\n", loadmodel->name);
5487 loadmodel->brushq3.num_triangles = 0;
5491 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5492 loadmodel->brushq3.num_triangles = count / 3;
5493 loadmodel->brushq3.data_element3i = out;
5495 for (i = 0;i < count;i++, in++, out++)
5497 *out = LittleLong(*in);
5498 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
5500 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
5506 static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
5508 q3dlightmap_t *input_pointer;
5526 int mergedrowsxcolumns;
5531 unsigned char *mergedpixels;
5532 unsigned char *mergeddeluxepixels;
5533 unsigned char *mergebuf;
5534 char mapname[MAX_QPATH];
5536 unsigned char *inpixels[10000]; // max count q3map2 can output (it uses 4 digits)
5539 // defaults for q3bsp
5546 loadmodel->brushq3.lightmapsize = 128;
5548 if (cls.state == ca_dedicated)
5551 if(mod_q3bsp_nolightmaps.integer)
5557 // prefer internal LMs for compatibility (a BSP contains no info on whether external LMs exist)
5558 if (developer_loading.integer)
5559 Con_Printf("Using internal lightmaps\n");
5560 input_pointer = (q3dlightmap_t *)(mod_base + l->fileofs);
5561 if (l->filelen % sizeof(*input_pointer))
5562 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
5563 count = l->filelen / sizeof(*input_pointer);
5564 for(i = 0; i < count; ++i)
5565 inpixels[i] = input_pointer[i].rgb;
5569 // no internal lightmaps
5570 // try external lightmaps
5571 FS_StripExtension(loadmodel->name, mapname, sizeof(mapname));
5572 inpixels[0] = loadimagepixelsbgra(va(vabuf, sizeof(vabuf), "%s/lm_%04d", mapname, 0), false, false, false, NULL);
5576 Con_Printf("Using external lightmaps\n");
5578 // using EXTERNAL lightmaps instead
5579 if(image_width != (int) CeilPowerOf2(image_width) || image_width != image_height)
5580 Con_Printf("Mod_Q3BSP_LoadLightmaps: irregularly sized external lightmap in %s",loadmodel->name);
5589 for(count = 1; ; ++count)
5591 inpixels[count] = loadimagepixelsbgra(va(vabuf, sizeof(vabuf), "%s/lm_%04d", mapname, count), false, false, false, NULL);
5592 if(!inpixels[count])
5593 break; // we got all of them
5594 if(image_width != size || image_height != size)
5596 Mem_Free(inpixels[count]);
5597 inpixels[count] = NULL;
5598 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);
5604 loadmodel->brushq3.lightmapsize = size;
5605 loadmodel->brushq3.num_originallightmaps = count;
5607 // now check the surfaces to see if any of them index an odd numbered
5608 // lightmap, if so this is not a deluxemapped bsp file
5610 // also check what lightmaps are actually used, because q3map2 sometimes
5611 // (always?) makes an unused one at the end, which
5612 // q3map2 sometimes (or always?) makes a second blank lightmap for no
5613 // reason when only one lightmap is used, which can throw off the
5614 // deluxemapping detection method, so check 2-lightmap bsp's specifically
5615 // to see if the second lightmap is blank, if so it is not deluxemapped.
5616 // VorteX: autodetect only if previous attempt to find "deluxeMaps" key
5617 // in Mod_Q3BSP_LoadEntities was failed
5618 if (!loadmodel->brushq3.deluxemapping)
5620 loadmodel->brushq3.deluxemapping = !(count & 1);
5621 loadmodel->brushq3.deluxemapping_modelspace = true;
5623 if (loadmodel->brushq3.deluxemapping)
5625 int facecount = faceslump->filelen / sizeof(q3dface_t);
5626 q3dface_t *faces = (q3dface_t *)(mod_base + faceslump->fileofs);
5627 for (i = 0;i < facecount;i++)
5629 j = LittleLong(faces[i].lightmapindex);
5632 endlightmap = max(endlightmap, j + 1);
5633 if ((j & 1) || j + 1 >= count)
5635 loadmodel->brushq3.deluxemapping = false;
5642 // q3map2 sometimes (or always?) makes a second blank lightmap for no
5643 // reason when only one lightmap is used, which can throw off the
5644 // deluxemapping detection method, so check 2-lightmap bsp's specifically
5645 // to see if the second lightmap is blank, if so it is not deluxemapped.
5647 // further research has shown q3map2 sometimes creates a deluxemap and two
5648 // blank lightmaps, which must be handled properly as well
5649 if (endlightmap == 1 && count > 1)
5652 for (i = 0;i < size*size;i++)
5654 if (c[bytesperpixel*i + rgbmap[0]])
5656 if (c[bytesperpixel*i + rgbmap[1]])
5658 if (c[bytesperpixel*i + rgbmap[2]])
5663 // all pixels in the unused lightmap were black...
5664 loadmodel->brushq3.deluxemapping = false;
5669 Con_Printf("%s is %sdeluxemapped\n", loadmodel->name, loadmodel->brushq3.deluxemapping ? "" : "not ");
5671 // figure out what the most reasonable merge power is within limits
5673 // find the appropriate NxN dimensions to merge to, to avoid wasted space
5674 realcount = count >> (int)loadmodel->brushq3.deluxemapping;
5676 // figure out how big the merged texture has to be
5677 mergegoal = 128<<bound(0, mod_q3bsp_lightmapmergepower.integer, 6);
5678 mergegoal = bound(size, mergegoal, (int)vid.maxtexturesize_2d);
5679 while (mergegoal > size && mergegoal * mergegoal / 4 >= size * size * realcount)
5681 mergedwidth = mergegoal;
5682 mergedheight = mergegoal;
5683 // choose non-square size (2x1 aspect) if only half the space is used;
5684 // this really only happens when the entire set fits in one texture, if
5685 // there are multiple textures, we don't worry about shrinking the last
5686 // one to fit, because the driver prefers the same texture size on
5687 // consecutive draw calls...
5688 if (mergedwidth * mergedheight / 2 >= size*size*realcount)
5691 loadmodel->brushq3.num_lightmapmergedwidthpower = 0;
5692 loadmodel->brushq3.num_lightmapmergedheightpower = 0;
5693 while (mergedwidth > size<<loadmodel->brushq3.num_lightmapmergedwidthpower)
5694 loadmodel->brushq3.num_lightmapmergedwidthpower++;
5695 while (mergedheight > size<<loadmodel->brushq3.num_lightmapmergedheightpower)
5696 loadmodel->brushq3.num_lightmapmergedheightpower++;
5697 loadmodel->brushq3.num_lightmapmergedwidthheightdeluxepower = loadmodel->brushq3.num_lightmapmergedwidthpower + loadmodel->brushq3.num_lightmapmergedheightpower + (loadmodel->brushq3.deluxemapping ? 1 : 0);
5699 powerx = loadmodel->brushq3.num_lightmapmergedwidthpower;
5700 powery = loadmodel->brushq3.num_lightmapmergedheightpower;
5701 powerxy = powerx+powery;
5702 powerdxy = loadmodel->brushq3.deluxemapping + powerxy;
5704 mergedcolumns = 1 << powerx;
5705 mergedrows = 1 << powery;
5706 mergedrowsxcolumns = 1 << powerxy;
5708 loadmodel->brushq3.num_mergedlightmaps = (realcount + (1 << powerxy) - 1) >> powerxy;
5709 loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
5710 if (loadmodel->brushq3.deluxemapping)
5711 loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
5713 mergedpixels = (unsigned char *) Mem_Alloc(tempmempool, mergedwidth * mergedheight * 4);
5714 mergeddeluxepixels = loadmodel->brushq3.deluxemapping ? (unsigned char *) Mem_Alloc(tempmempool, mergedwidth * mergedheight * 4) : NULL;
5715 for (i = 0;i < count;i++)
5717 // figure out which merged lightmap texture this fits into
5718 realindex = i >> (int)loadmodel->brushq3.deluxemapping;
5719 lightmapindex = i >> powerdxy;
5721 // choose the destination address
5722 mergebuf = (loadmodel->brushq3.deluxemapping && (i & 1)) ? mergeddeluxepixels : mergedpixels;
5723 mergebuf += 4 * (realindex & (mergedcolumns-1))*size + 4 * ((realindex >> powerx) & (mergedrows-1))*mergedwidth*size;
5724 if ((i & 1) == 0 || !loadmodel->brushq3.deluxemapping)
5725 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);
5727 // convert pixels from RGB or BGRA while copying them into the destination rectangle
5728 for (j = 0;j < size;j++)
5729 for (k = 0;k < size;k++)
5731 mergebuf[(j*mergedwidth+k)*4+0] = inpixels[i][(j*size+k)*bytesperpixel+rgbmap[0]];
5732 mergebuf[(j*mergedwidth+k)*4+1] = inpixels[i][(j*size+k)*bytesperpixel+rgbmap[1]];
5733 mergebuf[(j*mergedwidth+k)*4+2] = inpixels[i][(j*size+k)*bytesperpixel+rgbmap[2]];
5734 mergebuf[(j*mergedwidth+k)*4+3] = 255;
5737 // upload texture if this was the last tile being written to the texture
5738 if (((realindex + 1) & (mergedrowsxcolumns - 1)) == 0 || (realindex + 1) == realcount)
5740 if (loadmodel->brushq3.deluxemapping && (i & 1))
5741 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);
5744 if(mod_q3bsp_sRGBlightmaps.integer)
5747 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5749 t = TEXTYPE_BGRA; // in stupid fallback mode, we upload lightmaps in sRGB form and just fix their brightness
5750 // we fix the brightness consistently via lightmapscale
5753 t = TEXTYPE_SRGB_BGRA; // normally, we upload lightmaps in sRGB form (possibly downconverted to linear)
5754 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);
5758 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5759 Image_MakesRGBColorsFromLinear_Lightmap(mergedpixels, mergedpixels, mergedwidth * mergedheight);
5760 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);
5766 if (mergeddeluxepixels)
5767 Mem_Free(mergeddeluxepixels);
5768 Mem_Free(mergedpixels);
5771 for(i = 0; i < count; ++i)
5772 Mem_Free(inpixels[i]);
5776 typedef struct patchtess_s
5780 // Auxiliary data used only by patch loading code in Mod_Q3BSP_LoadFaces
5783 float *originalvertex3f;
5786 #define PATCHTESS_SAME_LODGROUP(a,b) \
5788 (a).lodgroup[0] == (b).lodgroup[0] && \
5789 (a).lodgroup[1] == (b).lodgroup[1] && \
5790 (a).lodgroup[2] == (b).lodgroup[2] && \
5791 (a).lodgroup[3] == (b).lodgroup[3] && \
5792 (a).lodgroup[4] == (b).lodgroup[4] && \
5793 (a).lodgroup[5] == (b).lodgroup[5] \
5796 static void Mod_Q3BSP_LoadFaces(lump_t *l)
5798 q3dface_t *in, *oldin;
5799 msurface_t *out, *oldout;
5800 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;
5801 float lightmaptcbase[2], lightmaptcscale[2];
5802 //int *originalelement3i;
5803 float *originalvertex3f;
5804 //float *originalsvector3f;
5805 //float *originaltvector3f;
5806 float *originalnormal3f;
5807 float *originalcolor4f;
5808 float *originaltexcoordtexture2f;
5809 float *originaltexcoordlightmap2f;
5810 float *surfacecollisionvertex3f;
5811 int *surfacecollisionelement3i;
5813 patchtess_t *patchtess = NULL;
5814 int patchtesscount = 0;
5817 in = (q3dface_t *)(mod_base + l->fileofs);
5818 if (l->filelen % sizeof(*in))
5819 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
5820 count = l->filelen / sizeof(*in);
5821 out = (msurface_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5823 loadmodel->data_surfaces = out;
5824 loadmodel->num_surfaces = count;
5827 patchtess = (patchtess_t*) Mem_Alloc(tempmempool, count * sizeof(*patchtess));
5835 for (;i < count;i++, in++, out++)
5837 // check face type first
5838 type = LittleLong(in->type);
5839 if (type != Q3FACETYPE_FLAT
5840 && type != Q3FACETYPE_PATCH
5841 && type != Q3FACETYPE_MESH
5842 && type != Q3FACETYPE_FLARE)
5844 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
5848 n = LittleLong(in->textureindex);
5849 if (n < 0 || n >= loadmodel->num_textures)
5851 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
5854 out->texture = loadmodel->data_textures + n;
5855 n = LittleLong(in->effectindex);
5856 if (n < -1 || n >= loadmodel->brushq3.num_effects)
5858 if (developer_extra.integer)
5859 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
5865 out->effect = loadmodel->brushq3.data_effects + n;
5867 if (cls.state != ca_dedicated)
5869 out->lightmaptexture = NULL;
5870 out->deluxemaptexture = r_texture_blanknormalmap;
5871 n = LittleLong(in->lightmapindex);
5874 else if (n >= loadmodel->brushq3.num_originallightmaps)
5876 if(loadmodel->brushq3.num_originallightmaps != 0)
5877 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_originallightmaps);
5882 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n >> loadmodel->brushq3.num_lightmapmergedwidthheightdeluxepower];
5883 if (loadmodel->brushq3.deluxemapping)
5884 out->deluxemaptexture = loadmodel->brushq3.data_deluxemaps[n >> loadmodel->brushq3.num_lightmapmergedwidthheightdeluxepower];
5885 loadmodel->lit = true;
5889 firstvertex = LittleLong(in->firstvertex);
5890 numvertices = LittleLong(in->numvertices);
5891 firstelement = LittleLong(in->firstelement);
5892 numtriangles = LittleLong(in->numelements) / 3;
5893 if (numtriangles * 3 != LittleLong(in->numelements))
5895 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));
5898 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
5900 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);
5903 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
5905 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);
5910 case Q3FACETYPE_FLAT:
5911 case Q3FACETYPE_MESH:
5912 // no processing necessary
5914 case Q3FACETYPE_PATCH:
5915 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
5916 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
5917 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)))
5919 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
5922 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
5924 // convert patch to Q3FACETYPE_MESH
5925 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5926 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5927 // bound to user settings
5928 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
5929 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
5930 // bound to sanity settings
5931 xtess = bound(0, xtess, 1024);
5932 ytess = bound(0, ytess, 1024);
5934 // lower quality collision patches! Same procedure as before, but different cvars
5935 // convert patch to Q3FACETYPE_MESH
5936 cxtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, mod_q3bsp_curves_subdivisions_tolerance.value);
5937 cytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, mod_q3bsp_curves_subdivisions_tolerance.value);
5938 // bound to user settings
5939 cxtess = bound(mod_q3bsp_curves_subdivisions_mintess.integer, cxtess, mod_q3bsp_curves_subdivisions_maxtess.integer);
5940 cytess = bound(mod_q3bsp_curves_subdivisions_mintess.integer, cytess, mod_q3bsp_curves_subdivisions_maxtess.integer);
5941 // bound to sanity settings
5942 cxtess = bound(0, cxtess, 1024);
5943 cytess = bound(0, cytess, 1024);
5945 // store it for the LOD grouping step
5946 patchtess[patchtesscount].info.xsize = patchsize[0];
5947 patchtess[patchtesscount].info.ysize = patchsize[1];
5948 patchtess[patchtesscount].info.lods[PATCH_LOD_VISUAL].xtess = xtess;
5949 patchtess[patchtesscount].info.lods[PATCH_LOD_VISUAL].ytess = ytess;
5950 patchtess[patchtesscount].info.lods[PATCH_LOD_COLLISION].xtess = cxtess;
5951 patchtess[patchtesscount].info.lods[PATCH_LOD_COLLISION].ytess = cytess;
5953 patchtess[patchtesscount].surface_id = i;
5954 patchtess[patchtesscount].lodgroup[0] = LittleFloat(in->specific.patch.mins[0]);
5955 patchtess[patchtesscount].lodgroup[1] = LittleFloat(in->specific.patch.mins[1]);
5956 patchtess[patchtesscount].lodgroup[2] = LittleFloat(in->specific.patch.mins[2]);
5957 patchtess[patchtesscount].lodgroup[3] = LittleFloat(in->specific.patch.maxs[0]);
5958 patchtess[patchtesscount].lodgroup[4] = LittleFloat(in->specific.patch.maxs[1]);
5959 patchtess[patchtesscount].lodgroup[5] = LittleFloat(in->specific.patch.maxs[2]);
5960 patchtess[patchtesscount].originalvertex3f = originalvertex3f;
5963 case Q3FACETYPE_FLARE:
5964 if (developer_extra.integer)
5965 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
5969 out->num_vertices = numvertices;
5970 out->num_triangles = numtriangles;
5971 meshvertices += out->num_vertices;
5972 meshtriangles += out->num_triangles;
5975 // Fix patches tesselations so that they make no seams
5979 for(i = 0; i < patchtesscount; ++i)
5981 for(j = i+1; j < patchtesscount; ++j)
5983 if (!PATCHTESS_SAME_LODGROUP(patchtess[i], patchtess[j]))
5986 if (Q3PatchAdjustTesselation(3, &patchtess[i].info, patchtess[i].originalvertex3f, &patchtess[j].info, patchtess[j].originalvertex3f) )
5993 // Calculate resulting number of triangles
5994 collisionvertices = 0;
5995 collisiontriangles = 0;
5996 for(i = 0; i < patchtesscount; ++i)
5998 finalwidth = Q3PatchDimForTess(patchtess[i].info.xsize, patchtess[i].info.lods[PATCH_LOD_VISUAL].xtess);
5999 finalheight = Q3PatchDimForTess(patchtess[i].info.ysize,patchtess[i].info.lods[PATCH_LOD_VISUAL].ytess);
6000 numvertices = finalwidth * finalheight;
6001 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
6003 oldout[patchtess[i].surface_id].num_vertices = numvertices;
6004 oldout[patchtess[i].surface_id].num_triangles = numtriangles;
6005 meshvertices += oldout[patchtess[i].surface_id].num_vertices;
6006 meshtriangles += oldout[patchtess[i].surface_id].num_triangles;
6008 finalwidth = Q3PatchDimForTess(patchtess[i].info.xsize, patchtess[i].info.lods[PATCH_LOD_COLLISION].xtess);
6009 finalheight = Q3PatchDimForTess(patchtess[i].info.ysize,patchtess[i].info.lods[PATCH_LOD_COLLISION].ytess);
6010 numvertices = finalwidth * finalheight;
6011 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
6013 oldout[patchtess[i].surface_id].num_collisionvertices = numvertices;
6014 oldout[patchtess[i].surface_id].num_collisiontriangles = numtriangles;
6015 collisionvertices += oldout[patchtess[i].surface_id].num_collisionvertices;
6016 collisiontriangles += oldout[patchtess[i].surface_id].num_collisiontriangles;
6022 Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true);
6023 if (collisiontriangles)
6025 loadmodel->brush.data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, collisionvertices * sizeof(float[3]));
6026 loadmodel->brush.data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, collisiontriangles * sizeof(int[3]));
6030 collisionvertices = 0;
6031 collisiontriangles = 0;
6032 for (;i < count && meshvertices + out->num_vertices <= loadmodel->surfmesh.num_vertices;i++, in++, out++)
6034 if (out->num_vertices < 3 || out->num_triangles < 1)
6037 type = LittleLong(in->type);
6038 firstvertex = LittleLong(in->firstvertex);
6039 firstelement = LittleLong(in->firstelement);
6040 out->num_firstvertex = meshvertices;
6041 out->num_firsttriangle = meshtriangles;
6042 out->num_firstcollisiontriangle = collisiontriangles;
6045 case Q3FACETYPE_FLAT:
6046 case Q3FACETYPE_MESH:
6047 // no processing necessary, except for lightmap merging
6048 for (j = 0;j < out->num_vertices;j++)
6050 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
6051 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
6052 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
6053 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 0];
6054 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 1];
6055 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 2];
6056 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
6057 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
6058 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
6059 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
6060 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
6061 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
6062 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
6063 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
6065 for (j = 0;j < out->num_triangles*3;j++)
6066 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
6068 case Q3FACETYPE_PATCH:
6069 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
6070 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
6071 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
6072 originalnormal3f = loadmodel->brushq3.data_normal3f + firstvertex * 3;
6073 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
6074 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
6075 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
6077 xtess = ytess = cxtess = cytess = -1;
6078 for(j = 0; j < patchtesscount; ++j)
6079 if(patchtess[j].surface_id == i)
6081 xtess = patchtess[j].info.lods[PATCH_LOD_VISUAL].xtess;
6082 ytess = patchtess[j].info.lods[PATCH_LOD_VISUAL].ytess;
6083 cxtess = patchtess[j].info.lods[PATCH_LOD_COLLISION].xtess;
6084 cytess = patchtess[j].info.lods[PATCH_LOD_COLLISION].ytess;
6089 Con_Printf(CON_ERROR "ERROR: patch %d isn't preprocessed?!?\n", i);
6090 xtess = ytess = cxtess = cytess = 0;
6093 finalwidth = Q3PatchDimForTess(patchsize[0],xtess); //((patchsize[0] - 1) * xtess) + 1;
6094 finalheight = Q3PatchDimForTess(patchsize[1],ytess); //((patchsize[1] - 1) * ytess) + 1;
6095 finalvertices = finalwidth * finalheight;
6096 oldnumtriangles = finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
6097 type = Q3FACETYPE_MESH;
6098 // generate geometry
6099 // (note: normals are skipped because they get recalculated)
6100 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
6101 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalnormal3f, xtess, ytess);
6102 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
6103 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
6104 Q3PatchTesselateFloat(4, sizeof(float[4]), (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
6105 Q3PatchTriangleElements((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
6107 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);
6109 if (developer_extra.integer)
6111 if (out->num_triangles < finaltriangles)
6112 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);
6114 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);
6116 // q3map does not put in collision brushes for curves... ugh
6117 // build the lower quality collision geometry
6118 finalwidth = Q3PatchDimForTess(patchsize[0],cxtess); //((patchsize[0] - 1) * cxtess) + 1;
6119 finalheight = Q3PatchDimForTess(patchsize[1],cytess); //((patchsize[1] - 1) * cytess) + 1;
6120 finalvertices = finalwidth * finalheight;
6121 oldnumtriangles2 = finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
6123 // store collision geometry for BIH collision tree
6124 out->num_collisionvertices = finalvertices;
6125 out->num_collisiontriangles = finaltriangles;
6126 surfacecollisionvertex3f = loadmodel->brush.data_collisionvertex3f + collisionvertices * 3;
6127 surfacecollisionelement3i = loadmodel->brush.data_collisionelement3i + collisiontriangles * 3;
6128 Q3PatchTesselateFloat(3, sizeof(float[3]), surfacecollisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, cxtess, cytess);
6129 Q3PatchTriangleElements(surfacecollisionelement3i, finalwidth, finalheight, collisionvertices);
6130 Mod_SnapVertices(3, finalvertices, surfacecollisionvertex3f, 1);
6131 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(finaltriangles, surfacecollisionelement3i, surfacecollisionelement3i, loadmodel->brush.data_collisionvertex3f);
6133 if (developer_extra.integer)
6134 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);
6136 collisionvertices += finalvertices;
6137 collisiontriangles += out->num_collisiontriangles;
6142 meshvertices += out->num_vertices;
6143 meshtriangles += out->num_triangles;
6144 for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
6145 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)
6147 if (invalidelements)
6149 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);
6150 for (j = 0;j < out->num_triangles * 3;j++)
6152 Con_Printf(" %i", (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
6153 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)
6154 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
6158 // calculate a bounding box
6159 VectorClear(out->mins);
6160 VectorClear(out->maxs);
6161 if (out->num_vertices)
6163 if (cls.state != ca_dedicated && out->lightmaptexture)
6165 // figure out which part of the merged lightmap this fits into
6166 int lightmapindex = LittleLong(in->lightmapindex) >> (loadmodel->brushq3.deluxemapping ? 1 : 0);
6167 int mergewidth = R_TextureWidth(out->lightmaptexture) / loadmodel->brushq3.lightmapsize;
6168 int mergeheight = R_TextureHeight(out->lightmaptexture) / loadmodel->brushq3.lightmapsize;
6169 lightmapindex &= mergewidth * mergeheight - 1;
6170 lightmaptcscale[0] = 1.0f / mergewidth;
6171 lightmaptcscale[1] = 1.0f / mergeheight;
6172 lightmaptcbase[0] = (lightmapindex % mergewidth) * lightmaptcscale[0];
6173 lightmaptcbase[1] = (lightmapindex / mergewidth) * lightmaptcscale[1];
6174 // modify the lightmap texcoords to match this region of the merged lightmap
6175 for (j = 0, v = loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex;j < out->num_vertices;j++, v += 2)
6177 v[0] = v[0] * lightmaptcscale[0] + lightmaptcbase[0];
6178 v[1] = v[1] * lightmaptcscale[1] + lightmaptcbase[1];
6181 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->mins);
6182 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->maxs);
6183 for (j = 1, v = (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
6185 out->mins[0] = min(out->mins[0], v[0]);
6186 out->maxs[0] = max(out->maxs[0], v[0]);
6187 out->mins[1] = min(out->mins[1], v[1]);
6188 out->maxs[1] = max(out->maxs[1], v[1]);
6189 out->mins[2] = min(out->mins[2], v[2]);
6190 out->maxs[2] = max(out->maxs[2], v[2]);
6192 out->mins[0] -= 1.0f;
6193 out->mins[1] -= 1.0f;
6194 out->mins[2] -= 1.0f;
6195 out->maxs[0] += 1.0f;
6196 out->maxs[1] += 1.0f;
6197 out->maxs[2] += 1.0f;
6199 // set lightmap styles for consistency with q1bsp
6200 //out->lightmapinfo->styles[0] = 0;
6201 //out->lightmapinfo->styles[1] = 255;
6202 //out->lightmapinfo->styles[2] = 255;
6203 //out->lightmapinfo->styles[3] = 255;
6208 for (;i < count;i++, out++)
6210 if(out->num_vertices && out->num_triangles)
6212 if(out->num_vertices == 0)
6214 Con_Printf("Mod_Q3BSP_LoadFaces: surface %d (texture %s) has no vertices, ignoring\n", i, out->texture ? out->texture->name : "(none)");
6215 if(out->num_triangles == 0)
6216 Con_Printf("Mod_Q3BSP_LoadFaces: surface %d (texture %s) has no triangles, ignoring\n", i, out->texture ? out->texture->name : "(none)");
6218 else if(out->num_triangles == 0)
6219 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)",
6220 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[0 * 3 + 0],
6221 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[1 * 3 + 0],
6222 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[2 * 3 + 0]);
6225 // for per pixel lighting
6226 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);
6228 // generate ushort elements array if possible
6229 if (loadmodel->surfmesh.data_element3s)
6230 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
6231 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
6233 // free the no longer needed vertex data
6234 loadmodel->brushq3.num_vertices = 0;
6235 if (loadmodel->brushq3.data_vertex3f)
6236 Mem_Free(loadmodel->brushq3.data_vertex3f);
6237 loadmodel->brushq3.data_vertex3f = NULL;
6238 loadmodel->brushq3.data_normal3f = NULL;
6239 loadmodel->brushq3.data_texcoordtexture2f = NULL;
6240 loadmodel->brushq3.data_texcoordlightmap2f = NULL;
6241 loadmodel->brushq3.data_color4f = NULL;
6242 // free the no longer needed triangle data
6243 loadmodel->brushq3.num_triangles = 0;
6244 if (loadmodel->brushq3.data_element3i)
6245 Mem_Free(loadmodel->brushq3.data_element3i);
6246 loadmodel->brushq3.data_element3i = NULL;
6249 Mem_Free(patchtess);
6252 static void Mod_Q3BSP_LoadModels(lump_t *l)
6256 int i, j, n, c, count;
6258 in = (q3dmodel_t *)(mod_base + l->fileofs);
6259 if (l->filelen % sizeof(*in))
6260 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
6261 count = l->filelen / sizeof(*in);
6262 out = (q3dmodel_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6264 loadmodel->brushq3.data_models = out;
6265 loadmodel->brushq3.num_models = count;
6267 for (i = 0;i < count;i++, in++, out++)
6269 for (j = 0;j < 3;j++)
6271 out->mins[j] = LittleFloat(in->mins[j]);
6272 out->maxs[j] = LittleFloat(in->maxs[j]);
6274 n = LittleLong(in->firstface);
6275 c = LittleLong(in->numfaces);
6276 if (n < 0 || n + c > loadmodel->num_surfaces)
6277 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)", n, n + c, loadmodel->num_surfaces);
6280 n = LittleLong(in->firstbrush);
6281 c = LittleLong(in->numbrushes);
6282 if (n < 0 || n + c > loadmodel->brush.num_brushes)
6283 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)", n, n + c, loadmodel->brush.num_brushes);
6284 out->firstbrush = n;
6285 out->numbrushes = c;
6289 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
6295 in = (int *)(mod_base + l->fileofs);
6296 if (l->filelen % sizeof(*in))
6297 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
6298 count = l->filelen / sizeof(*in);
6299 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6301 loadmodel->brush.data_leafbrushes = out;
6302 loadmodel->brush.num_leafbrushes = count;
6304 for (i = 0;i < count;i++, in++, out++)
6306 n = LittleLong(*in);
6307 if (n < 0 || n >= loadmodel->brush.num_brushes)
6308 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)", n, loadmodel->brush.num_brushes);
6313 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
6319 in = (int *)(mod_base + l->fileofs);
6320 if (l->filelen % sizeof(*in))
6321 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
6322 count = l->filelen / sizeof(*in);
6323 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6325 loadmodel->brush.data_leafsurfaces = out;
6326 loadmodel->brush.num_leafsurfaces = count;
6328 for (i = 0;i < count;i++, in++, out++)
6330 n = LittleLong(*in);
6331 if (n < 0 || n >= loadmodel->num_surfaces)
6332 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)", n, loadmodel->num_surfaces);
6337 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
6341 int i, j, n, c, count;
6343 in = (q3dleaf_t *)(mod_base + l->fileofs);
6344 if (l->filelen % sizeof(*in))
6345 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
6346 count = l->filelen / sizeof(*in);
6347 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6349 loadmodel->brush.data_leafs = out;
6350 loadmodel->brush.num_leafs = count;
6352 for (i = 0;i < count;i++, in++, out++)
6356 out->clusterindex = LittleLong(in->clusterindex);
6357 out->areaindex = LittleLong(in->areaindex);
6358 for (j = 0;j < 3;j++)
6360 // yes the mins/maxs are ints
6361 out->mins[j] = LittleLong(in->mins[j]) - 1;
6362 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
6364 n = LittleLong(in->firstleafface);
6365 c = LittleLong(in->numleaffaces);
6366 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
6367 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)", n, n + c, loadmodel->brush.num_leafsurfaces);
6368 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
6369 out->numleafsurfaces = c;
6370 n = LittleLong(in->firstleafbrush);
6371 c = LittleLong(in->numleafbrushes);
6372 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
6373 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)", n, n + c, loadmodel->brush.num_leafbrushes);
6374 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
6375 out->numleafbrushes = c;
6379 static void Mod_Q3BSP_LoadNodes(lump_t *l)
6385 in = (q3dnode_t *)(mod_base + l->fileofs);
6386 if (l->filelen % sizeof(*in))
6387 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
6388 count = l->filelen / sizeof(*in);
6390 Host_Error("Mod_Q3BSP_LoadNodes: missing BSP tree in %s",loadmodel->name);
6391 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6393 loadmodel->brush.data_nodes = out;
6394 loadmodel->brush.num_nodes = count;
6396 for (i = 0;i < count;i++, in++, out++)
6399 n = LittleLong(in->planeindex);
6400 if (n < 0 || n >= loadmodel->brush.num_planes)
6401 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
6402 out->plane = loadmodel->brush.data_planes + n;
6403 for (j = 0;j < 2;j++)
6405 n = LittleLong(in->childrenindex[j]);
6408 if (n >= loadmodel->brush.num_nodes)
6409 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)", n, loadmodel->brush.num_nodes);
6410 out->children[j] = loadmodel->brush.data_nodes + n;
6415 if (n >= loadmodel->brush.num_leafs)
6416 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)", n, loadmodel->brush.num_leafs);
6417 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
6420 for (j = 0;j < 3;j++)
6422 // yes the mins/maxs are ints
6423 out->mins[j] = LittleLong(in->mins[j]) - 1;
6424 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
6428 // set the parent pointers
6429 Mod_BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
6432 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
6435 q3dlightgrid_t *out;
6439 unsigned char *texturergba, *texturelayer[3], *texturepadding[2];
6440 double lightgridmatrix[4][4];
6442 in = (q3dlightgrid_t *)(mod_base + l->fileofs);
6443 if (l->filelen % sizeof(*in))
6444 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
6445 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
6446 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
6447 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
6448 loadmodel->brushq3.num_lightgrid_imins[0] = (int)ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
6449 loadmodel->brushq3.num_lightgrid_imins[1] = (int)ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
6450 loadmodel->brushq3.num_lightgrid_imins[2] = (int)ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
6451 loadmodel->brushq3.num_lightgrid_imaxs[0] = (int)floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
6452 loadmodel->brushq3.num_lightgrid_imaxs[1] = (int)floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
6453 loadmodel->brushq3.num_lightgrid_imaxs[2] = (int)floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
6454 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
6455 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
6456 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
6457 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
6458 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]);
6459 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]);
6461 // if lump is empty there is nothing to load, we can deal with that in the LightPoint code
6464 if (l->filelen < count * (int)sizeof(*in))
6466 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]);
6467 return; // ignore the grid if we cannot understand it
6469 if (l->filelen != count * (int)sizeof(*in))
6470 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);
6471 out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6472 loadmodel->brushq3.data_lightgrid = out;
6473 loadmodel->brushq3.num_lightgrid = count;
6474 // no swapping or validation necessary
6475 memcpy(out, in, count * (int)sizeof(*out));
6477 if(mod_q3bsp_sRGBlightmaps.integer)
6479 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
6481 // we fix the brightness consistently via lightmapscale
6485 for(i = 0; i < count; ++i)
6487 out[i].ambientrgb[0] = floor(Image_LinearFloatFromsRGB(out[i].ambientrgb[0]) * 255.0f + 0.5f);
6488 out[i].ambientrgb[1] = floor(Image_LinearFloatFromsRGB(out[i].ambientrgb[1]) * 255.0f + 0.5f);
6489 out[i].ambientrgb[2] = floor(Image_LinearFloatFromsRGB(out[i].ambientrgb[2]) * 255.0f + 0.5f);
6490 out[i].diffusergb[0] = floor(Image_LinearFloatFromsRGB(out[i].diffusergb[0]) * 255.0f + 0.5f);
6491 out[i].diffusergb[1] = floor(Image_LinearFloatFromsRGB(out[i].diffusergb[1]) * 255.0f + 0.5f);
6492 out[i].diffusergb[2] = floor(Image_LinearFloatFromsRGB(out[i].diffusergb[2]) * 255.0f + 0.5f);
6498 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
6500 for(i = 0; i < count; ++i)
6502 out[i].ambientrgb[0] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].ambientrgb[0]) * 255.0f + 0.5f);
6503 out[i].ambientrgb[1] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].ambientrgb[1]) * 255.0f + 0.5f);
6504 out[i].ambientrgb[2] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].ambientrgb[2]) * 255.0f + 0.5f);
6505 out[i].diffusergb[0] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].diffusergb[0]) * 255.0f + 0.5f);
6506 out[i].diffusergb[1] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].diffusergb[1]) * 255.0f + 0.5f);
6507 out[i].diffusergb[2] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].diffusergb[2]) * 255.0f + 0.5f);
6516 if (mod_q3bsp_lightgrid_texture.integer)
6518 // build a texture to hold the data for per-pixel sampling
6519 // this has 3 different kinds of data stacked in it:
6521 // bent-normal light color
6522 // bent-normal light dir
6524 texturesize[0] = loadmodel->brushq3.num_lightgrid_isize[0];
6525 texturesize[1] = loadmodel->brushq3.num_lightgrid_isize[1];
6526 texturesize[2] = (loadmodel->brushq3.num_lightgrid_isize[2] + 2) * 3;
6527 texturergba = (unsigned char*)Mem_Alloc(loadmodel->mempool, texturesize[0] * texturesize[1] * texturesize[2] * sizeof(char[4]));
6528 texturelayer[0] = texturergba + loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * 4;
6529 texturelayer[1] = texturelayer[0] + (loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * (loadmodel->brushq3.num_lightgrid_isize[2] + 2)) * 4;
6530 texturelayer[2] = texturelayer[1] + (loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * (loadmodel->brushq3.num_lightgrid_isize[2] + 2)) * 4;
6531 // the light dir layer needs padding above/below it that is a neutral unsigned normal (127,127,127,255)
6532 texturepadding[0] = texturelayer[2] - loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * 4;
6533 texturepadding[1] = texturelayer[2] + loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2] * 4;
6534 for (i = 0; i < texturesize[0] * texturesize[1]; i++)
6536 texturepadding[0][i * 4] = texturepadding[1][i * 4] = 127;
6537 texturepadding[0][i * 4 + 1] = texturepadding[1][i * 4 + 1] = 127;
6538 texturepadding[0][i * 4 + 2] = texturepadding[1][i * 4 + 2] = 127;
6539 texturepadding[0][i * 4 + 3] = texturepadding[1][i * 4 + 3] = 255;
6541 for (i = 0; i < count; i++)
6543 texturelayer[0][i * 4 + 0] = out[i].ambientrgb[0];
6544 texturelayer[0][i * 4 + 1] = out[i].ambientrgb[1];
6545 texturelayer[0][i * 4 + 2] = out[i].ambientrgb[2];
6546 texturelayer[0][i * 4 + 3] = 255;
6547 texturelayer[1][i * 4 + 0] = out[i].diffusergb[0];
6548 texturelayer[1][i * 4 + 1] = out[i].diffusergb[1];
6549 texturelayer[1][i * 4 + 2] = out[i].diffusergb[2];
6550 texturelayer[1][i * 4 + 3] = 255;
6551 // this uses the mod_md3_sin table because the values are
6552 // already in the 0-255 range, the 64+ bias fetches a cosine
6553 // instead of a sine value
6554 texturelayer[2][i * 4 + 0] = (char)((mod_md3_sin[64 + out[i].diffuseyaw] * mod_md3_sin[out[i].diffusepitch]) * 127 + 127);
6555 texturelayer[2][i * 4 + 1] = (char)((mod_md3_sin[out[i].diffuseyaw] * mod_md3_sin[out[i].diffusepitch]) * 127 + 127);
6556 texturelayer[2][i * 4 + 2] = (char)((mod_md3_sin[64 + out[i].diffusepitch]) * 127 + 127);
6557 texturelayer[2][i * 4 + 3] = 255;
6562 for (z = 0; z < loadmodel->brushq3.num_lightgrid_isize[2]; z++)
6564 for (y = 0; y < loadmodel->brushq3.num_lightgrid_isize[1]; y++)
6566 for (x = 0; x < loadmodel->brushq3.num_lightgrid_isize[0]; x++)
6568 i = (z * texturesize[1] + y) * texturesize[0] + x;
6569 texturelayer[0][i * 4 + 0] = x * 256 / loadmodel->brushq3.num_lightgrid_isize[0];
6570 texturelayer[0][i * 4 + 1] = y * 256 / loadmodel->brushq3.num_lightgrid_isize[1];
6571 texturelayer[0][i * 4 + 2] = z * 256 / loadmodel->brushq3.num_lightgrid_isize[2];
6576 loadmodel->brushq3.lightgridtexturesize[0] = texturesize[0];
6577 loadmodel->brushq3.lightgridtexturesize[1] = texturesize[1];
6578 loadmodel->brushq3.lightgridtexturesize[2] = texturesize[2];
6579 memset(lightgridmatrix[0], 0, sizeof(lightgridmatrix));
6580 lightgridmatrix[0][0] = loadmodel->brushq3.num_lightgrid_scale[0] / texturesize[0];
6581 lightgridmatrix[1][1] = loadmodel->brushq3.num_lightgrid_scale[1] / texturesize[1];
6582 lightgridmatrix[2][2] = loadmodel->brushq3.num_lightgrid_scale[2] / texturesize[2];
6583 lightgridmatrix[0][3] = -(loadmodel->brushq3.num_lightgrid_imins[0] - 0.5f) / texturesize[0];
6584 lightgridmatrix[1][3] = -(loadmodel->brushq3.num_lightgrid_imins[1] - 0.5f) / texturesize[1];
6585 lightgridmatrix[2][3] = -(loadmodel->brushq3.num_lightgrid_imins[2] - 1.5f) / texturesize[2];
6586 lightgridmatrix[3][3] = 1;
6587 Matrix4x4_FromArrayDoubleD3D(&loadmodel->brushq3.lightgridworldtotexturematrix, lightgridmatrix);
6588 loadmodel->brushq3.lightgridtexture = R_LoadTexture3D(loadmodel->texturepool, "lightgrid", texturesize[0], texturesize[1], texturesize[2], texturergba, TEXTYPE_RGBA, TEXF_CLAMP, 0, NULL);
6589 Mem_Free(texturergba);
6594 static void Mod_Q3BSP_LoadPVS(lump_t *l)
6599 if (l->filelen == 0)
6602 // unvised maps often have cluster indices even without pvs, so check
6603 // leafs to find real number of clusters
6604 loadmodel->brush.num_pvsclusters = 1;
6605 for (i = 0;i < loadmodel->brush.num_leafs;i++)
6606 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
6609 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
6610 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
6611 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
6612 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
6616 in = (q3dpvs_t *)(mod_base + l->fileofs);
6618 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
6620 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
6621 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
6622 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
6623 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
6624 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
6625 if (l->filelen < totalchains + (int)sizeof(*in))
6626 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);
6628 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
6629 memcpy(loadmodel->brush.data_pvsclusters, (unsigned char *)(in + 1), totalchains);
6632 static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
6634 int i, j, k, index[3];
6635 float transformed[3], blend1, blend2, blend, stylescale = 1;
6636 q3dlightgrid_t *a, *s;
6638 // scale lighting by lightstyle[0] so that darkmode in dpmod works properly
6639 // LadyHavoc: FIXME: is this true?
6640 stylescale = 1; // added while render
6641 //stylescale = r_refdef.scene.rtlightstylevalue[0];
6643 if (!model->brushq3.num_lightgrid)
6645 ambientcolor[0] = stylescale;
6646 ambientcolor[1] = stylescale;
6647 ambientcolor[2] = stylescale;
6651 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
6652 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
6653 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
6654 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
6655 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
6656 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
6657 index[0] = (int)floor(transformed[0]);
6658 index[1] = (int)floor(transformed[1]);
6659 index[2] = (int)floor(transformed[2]);
6660 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
6662 // now lerp the values
6663 VectorClear(diffusenormal);
6664 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
6665 for (k = 0;k < 2;k++)
6667 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
6668 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
6670 for (j = 0;j < 2;j++)
6672 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
6673 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
6675 for (i = 0;i < 2;i++)
6677 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0]))) * stylescale;
6678 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
6680 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
6681 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
6682 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
6683 // this uses the mod_md3_sin table because the values are
6684 // already in the 0-255 range, the 64+ bias fetches a cosine
6685 // instead of a sine value
6686 diffusenormal[0] += blend * (mod_md3_sin[64 + s->diffuseyaw] * mod_md3_sin[s->diffusepitch]);
6687 diffusenormal[1] += blend * (mod_md3_sin[ s->diffuseyaw] * mod_md3_sin[s->diffusepitch]);
6688 diffusenormal[2] += blend * (mod_md3_sin[64 + s->diffusepitch]);
6689 //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)));
6694 // normalize the light direction before turning
6695 VectorNormalize(diffusenormal);
6696 //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]);
6699 static int Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(mnode_t *node, double p1[3], double p2[3], double endpos[3])
6702 double midf, mid[3];
6708 // find the point distances
6709 mplane_t *plane = node->plane;
6710 if (plane->type < 3)
6712 t1 = p1[plane->type] - plane->dist;
6713 t2 = p2[plane->type] - plane->dist;
6717 t1 = DotProduct (plane->normal, p1) - plane->dist;
6718 t2 = DotProduct (plane->normal, p2) - plane->dist;
6725 node = node->children[1];
6734 node = node->children[0];
6740 midf = t1 / (t1 - t2);
6741 VectorLerp(p1, midf, p2, mid);
6743 // recurse both sides, front side first
6744 // return 2 if empty is followed by solid (hit something)
6745 // do not return 2 if both are solid or both empty,
6746 // or if start is solid and end is empty
6747 // as these degenerate cases usually indicate the eye is in solid and
6748 // should see the target point anyway
6749 ret = Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ], p1, mid, endpos);
6752 ret = Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ^ 1], mid, p2, endpos);
6755 VectorCopy(mid, endpos);
6758 return ((mleaf_t *)node)->clusterindex < 0;
6761 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)
6763 if (model->brush.submodel || mod_q3bsp_tracelineofsight_brushes.integer)
6766 model->TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK, 0, MATERIALFLAGMASK_TRANSLUCENT);
6767 return trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, acceptmins, acceptmaxs);
6771 double tracestart[3], traceend[3], traceendpos[3];
6772 VectorCopy(start, tracestart);
6773 VectorCopy(end, traceend);
6774 VectorCopy(end, traceendpos);
6775 Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(model->brush.data_nodes, tracestart, traceend, traceendpos);
6776 return BoxesOverlap(traceendpos, traceendpos, acceptmins, acceptmaxs);
6780 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)
6783 const bih_leaf_t *leaf;
6784 const bih_node_t *node;
6785 const colbrushf_t *brush;
6788 int nodestackpos = 0;
6789 int nodestack[1024];
6791 memset(trace, 0, sizeof(*trace));
6792 trace->fraction = 1;
6793 trace->hitsupercontentsmask = hitsupercontentsmask;
6794 trace->skipsupercontentsmask = skipsupercontentsmask;
6795 trace->skipmaterialflagsmask = skipmaterialflagsmask;
6797 bih = &model->collision_bih;
6801 nodenum = bih->rootnode;
6802 nodestack[nodestackpos++] = nodenum;
6803 while (nodestackpos)
6805 nodenum = nodestack[--nodestackpos];
6806 node = bih->nodes + nodenum;
6808 if (!BoxesOverlap(start, start, node->mins, node->maxs))
6811 if (node->type <= BIH_SPLITZ && nodestackpos+2 <= 1024)
6813 axis = node->type - BIH_SPLITX;
6814 if (start[axis] >= node->frontmin)
6815 nodestack[nodestackpos++] = node->front;
6816 if (start[axis] <= node->backmax)
6817 nodestack[nodestackpos++] = node->back;
6819 else if (node->type == BIH_UNORDERED)
6821 for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
6823 leaf = bih->leafs + node->children[axis];
6825 if (!BoxesOverlap(start, start, leaf->mins, leaf->maxs))
6831 brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
6832 Collision_TracePointBrushFloat(trace, start, brush);
6834 case BIH_COLLISIONTRIANGLE:
6835 // collision triangle - skipped because they have no volume
6837 case BIH_RENDERTRIANGLE:
6838 // render triangle - skipped because they have no volume
6846 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)
6848 const bih_leaf_t *leaf;
6849 const bih_node_t *node;
6850 const colbrushf_t *brush;
6852 const texture_t *texture;
6853 vec3_t nodebigmins, nodebigmaxs, nodestart, nodeend, sweepnodemins, sweepnodemaxs;
6854 vec_t d1, d2, d3, d4, f, nodestackline[1024][6];
6855 int axis, nodenum, nodestackpos = 0, nodestack[1024];
6860 if (VectorCompare(start, end))
6862 Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
6866 nodenum = bih->rootnode;
6868 memset(trace, 0, sizeof(*trace));
6869 trace->fraction = 1;
6870 trace->hitsupercontentsmask = hitsupercontentsmask;
6871 trace->skipsupercontentsmask = skipsupercontentsmask;
6872 trace->skipmaterialflagsmask = skipmaterialflagsmask;
6875 nodestackline[nodestackpos][0] = start[0];
6876 nodestackline[nodestackpos][1] = start[1];
6877 nodestackline[nodestackpos][2] = start[2];
6878 nodestackline[nodestackpos][3] = end[0];
6879 nodestackline[nodestackpos][4] = end[1];
6880 nodestackline[nodestackpos][5] = end[2];
6881 nodestack[nodestackpos++] = nodenum;
6882 while (nodestackpos)
6884 nodenum = nodestack[--nodestackpos];
6885 node = bih->nodes + nodenum;
6886 VectorCopy(nodestackline[nodestackpos], nodestart);
6887 VectorCopy(nodestackline[nodestackpos] + 3, nodeend);
6888 sweepnodemins[0] = min(nodestart[0], nodeend[0]) - 1;
6889 sweepnodemins[1] = min(nodestart[1], nodeend[1]) - 1;
6890 sweepnodemins[2] = min(nodestart[2], nodeend[2]) - 1;
6891 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + 1;
6892 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + 1;
6893 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + 1;
6894 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, node->mins, node->maxs) && !collision_bih_fullrecursion.integer)
6896 if (node->type <= BIH_SPLITZ && nodestackpos+2 <= 1024)
6898 // recurse children of the split
6899 axis = node->type - BIH_SPLITX;
6900 d1 = node->backmax - nodestart[axis];
6901 d2 = node->backmax - nodeend[axis];
6902 d3 = nodestart[axis] - node->frontmin;
6903 d4 = nodeend[axis] - node->frontmin;
6904 if (collision_bih_fullrecursion.integer)
6905 d1 = d2 = d3 = d4 = 1; // force full recursion
6906 switch((d1 < 0) | ((d2 < 0) << 1) | ((d3 < 0) << 2) | ((d4 < 0) << 3))
6908 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;
6909 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;
6910 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;
6911 case 3: /* <<>> */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6912 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;
6913 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;
6914 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;
6915 case 7: /* <<<> */ f = d3 / (d3 - d4); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6916 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;
6917 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;
6918 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;
6919 case 11: /* <<>< */ f = d3 / (d3 - d4); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6920 case 12: /* >><< */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6921 case 13: /* <><< */ f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6922 case 14: /* ><<< */ f = d1 / (d1 - d2); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6923 case 15: /* <<<< */ break;
6926 else if (node->type == BIH_UNORDERED)
6928 // calculate sweep bounds for this node
6929 // copy node bounds into local variables
6930 VectorCopy(node->mins, nodebigmins);
6931 VectorCopy(node->maxs, nodebigmaxs);
6932 // clip line to this node bounds
6933 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); }
6934 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); }
6935 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); }
6936 // some of the line intersected the enlarged node box
6937 // calculate sweep bounds for this node
6938 sweepnodemins[0] = min(nodestart[0], nodeend[0]) - 1;
6939 sweepnodemins[1] = min(nodestart[1], nodeend[1]) - 1;
6940 sweepnodemins[2] = min(nodestart[2], nodeend[2]) - 1;
6941 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + 1;
6942 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + 1;
6943 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + 1;
6944 for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
6946 leaf = bih->leafs + node->children[axis];
6947 // TODO: This is very expensive in Steel Storm. Framerate halved during even light combat.
6948 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, leaf->mins, leaf->maxs))
6953 brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
6954 Collision_TraceLineBrushFloat(trace, start, end, brush, brush);
6956 case BIH_COLLISIONTRIANGLE:
6957 if (!mod_q3bsp_curves_collisions.integer)
6959 e = model->brush.data_collisionelement3i + 3*leaf->itemindex;
6960 texture = model->data_textures + leaf->textureindex;
6961 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);
6963 case BIH_RENDERTRIANGLE:
6964 e = model->surfmesh.data_element3i + 3*leaf->itemindex;
6965 texture = model->data_textures + leaf->textureindex;
6966 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);
6974 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)
6976 if (VectorCompare(start, end))
6978 Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
6981 Mod_CollisionBIH_TraceLineShared(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, &model->collision_bih);
6984 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)
6987 const bih_leaf_t *leaf;
6988 const bih_node_t *node;
6989 const colbrushf_t *brush;
6991 const texture_t *texture;
6992 vec3_t start, end, startmins, startmaxs, endmins, endmaxs, mins, maxs;
6993 vec3_t nodebigmins, nodebigmaxs, nodestart, nodeend, sweepnodemins, sweepnodemaxs;
6994 vec_t d1, d2, d3, d4, f, nodestackline[1024][6];
6995 int axis, nodenum, nodestackpos = 0, nodestack[1024];
6997 if (mod_q3bsp_optimizedtraceline.integer && VectorCompare(thisbrush_start->mins, thisbrush_start->maxs) && VectorCompare(thisbrush_end->mins, thisbrush_end->maxs))
6999 if (VectorCompare(thisbrush_start->mins, thisbrush_end->mins))
7000 Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, thisbrush_start->mins, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7002 Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, thisbrush_start->mins, thisbrush_end->mins, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7006 bih = &model->collision_bih;
7009 nodenum = bih->rootnode;
7011 // box trace, performed as brush trace
7012 memset(trace, 0, sizeof(*trace));
7013 trace->fraction = 1;
7014 trace->hitsupercontentsmask = hitsupercontentsmask;
7015 trace->skipsupercontentsmask = skipsupercontentsmask;
7016 trace->skipmaterialflagsmask = skipmaterialflagsmask;
7018 // calculate tracebox-like parameters for efficient culling
7019 VectorMAM(0.5f, thisbrush_start->mins, 0.5f, thisbrush_start->maxs, start);
7020 VectorMAM(0.5f, thisbrush_end->mins, 0.5f, thisbrush_end->maxs, end);
7021 VectorSubtract(thisbrush_start->mins, start, startmins);
7022 VectorSubtract(thisbrush_start->maxs, start, startmaxs);
7023 VectorSubtract(thisbrush_end->mins, end, endmins);
7024 VectorSubtract(thisbrush_end->maxs, end, endmaxs);
7025 mins[0] = min(startmins[0], endmins[0]);
7026 mins[1] = min(startmins[1], endmins[1]);
7027 mins[2] = min(startmins[2], endmins[2]);
7028 maxs[0] = max(startmaxs[0], endmaxs[0]);
7029 maxs[1] = max(startmaxs[1], endmaxs[1]);
7030 maxs[2] = max(startmaxs[2], endmaxs[2]);
7033 nodestackline[nodestackpos][0] = start[0];
7034 nodestackline[nodestackpos][1] = start[1];
7035 nodestackline[nodestackpos][2] = start[2];
7036 nodestackline[nodestackpos][3] = end[0];
7037 nodestackline[nodestackpos][4] = end[1];
7038 nodestackline[nodestackpos][5] = end[2];
7039 nodestack[nodestackpos++] = nodenum;
7040 while (nodestackpos)
7042 nodenum = nodestack[--nodestackpos];
7043 node = bih->nodes + nodenum;
7044 VectorCopy(nodestackline[nodestackpos], nodestart);
7045 VectorCopy(nodestackline[nodestackpos] + 3, nodeend);
7046 sweepnodemins[0] = min(nodestart[0], nodeend[0]) + mins[0] - 1;
7047 sweepnodemins[1] = min(nodestart[1], nodeend[1]) + mins[1] - 1;
7048 sweepnodemins[2] = min(nodestart[2], nodeend[2]) + mins[2] - 1;
7049 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + maxs[0] + 1;
7050 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + maxs[1] + 1;
7051 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + maxs[2] + 1;
7052 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, node->mins, node->maxs))
7054 if (node->type <= BIH_SPLITZ && nodestackpos+2 <= 1024)
7056 // recurse children of the split
7057 axis = node->type - BIH_SPLITX;
7058 d1 = node->backmax - nodestart[axis] - mins[axis];
7059 d2 = node->backmax - nodeend[axis] - mins[axis];
7060 d3 = nodestart[axis] - node->frontmin + maxs[axis];
7061 d4 = nodeend[axis] - node->frontmin + maxs[axis];
7062 switch((d1 < 0) | ((d2 < 0) << 1) | ((d3 < 0) << 2) | ((d4 < 0) << 3))
7064 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;
7065 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;
7066 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;
7067 case 3: /* <<>> */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7068 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;
7069 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;
7070 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;
7071 case 7: /* <<<> */ f = d3 / (d3 - d4); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7072 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;
7073 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;
7074 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;
7075 case 11: /* <<>< */ f = d3 / (d3 - d4); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7076 case 12: /* >><< */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
7077 case 13: /* <><< */ f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
7078 case 14: /* ><<< */ f = d1 / (d1 - d2); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
7079 case 15: /* <<<< */ break;
7082 else if (node->type == BIH_UNORDERED)
7084 // calculate sweep bounds for this node
7085 // copy node bounds into local variables and expand to get Minkowski Sum of the two shapes
7086 VectorSubtract(node->mins, maxs, nodebigmins);
7087 VectorSubtract(node->maxs, mins, nodebigmaxs);
7088 // clip line to this node bounds
7089 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); }
7090 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); }
7091 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); }
7092 // some of the line intersected the enlarged node box
7093 // calculate sweep bounds for this node
7094 sweepnodemins[0] = min(nodestart[0], nodeend[0]) + mins[0] - 1;
7095 sweepnodemins[1] = min(nodestart[1], nodeend[1]) + mins[1] - 1;
7096 sweepnodemins[2] = min(nodestart[2], nodeend[2]) + mins[2] - 1;
7097 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + maxs[0] + 1;
7098 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + maxs[1] + 1;
7099 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + maxs[2] + 1;
7100 for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
7102 leaf = bih->leafs + node->children[axis];
7103 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, leaf->mins, leaf->maxs))
7108 brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
7109 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
7111 case BIH_COLLISIONTRIANGLE:
7112 if (!mod_q3bsp_curves_collisions.integer)
7114 e = model->brush.data_collisionelement3i + 3*leaf->itemindex;
7115 texture = model->data_textures + leaf->textureindex;
7116 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);
7118 case BIH_RENDERTRIANGLE:
7119 e = model->surfmesh.data_element3i + 3*leaf->itemindex;
7120 texture = model->data_textures + leaf->textureindex;
7121 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);
7129 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)
7131 colboxbrushf_t thisbrush_start, thisbrush_end;
7132 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
7134 // box trace, performed as brush trace
7135 VectorAdd(start, boxmins, boxstartmins);
7136 VectorAdd(start, boxmaxs, boxstartmaxs);
7137 VectorAdd(end, boxmins, boxendmins);
7138 VectorAdd(end, boxmaxs, boxendmaxs);
7139 Collision_BrushForBox(&thisbrush_start, boxstartmins, boxstartmaxs, 0, 0, NULL);
7140 Collision_BrushForBox(&thisbrush_end, boxendmins, boxendmaxs, 0, 0, NULL);
7141 Mod_CollisionBIH_TraceBrush(model, frameblend, skeleton, trace, &thisbrush_start.brush, &thisbrush_end.brush, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7145 int Mod_CollisionBIH_PointSuperContents(struct model_s *model, int frame, const vec3_t point)
7148 Mod_CollisionBIH_TracePoint(model, NULL, NULL, &trace, point, 0, 0, 0);
7149 return trace.startsupercontents;
7152 qbool Mod_CollisionBIH_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end, const vec3_t acceptmins, const vec3_t acceptmaxs)
7155 Mod_CollisionBIH_TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK, 0, MATERIALFLAGMASK_TRANSLUCENT);
7156 return trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, acceptmins, acceptmaxs);
7159 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)
7162 // broken - needs to be modified to count front faces and backfaces to figure out if it is in solid
7164 int hitsupercontents;
7165 VectorSet(end, start[0], start[1], model->normalmins[2]);
7167 memset(trace, 0, sizeof(*trace));
7168 trace->fraction = 1;
7169 trace->hitsupercontentsmask = hitsupercontentsmask;
7170 trace->skipsupercontentsmask = skipsupercontentsmask;
7171 trace->skipmaterialflagsmask = skipmaterialflagsmask;
7173 Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7174 hitsupercontents = trace->hitsupercontents;
7175 memset(trace, 0, sizeof(*trace));
7176 trace->fraction = 1;
7177 trace->hitsupercontentsmask = hitsupercontentsmask;
7178 trace->skipsupercontentsmask = skipsupercontentsmask;
7179 trace->skipmaterialflagsmask = skipmaterialflagsmask;
7180 trace->startsupercontents = hitsupercontents;
7184 int Mod_CollisionBIH_PointSuperContents_Mesh(struct model_s *model, int frame, const vec3_t start)
7187 // broken - needs to be modified to count front faces and backfaces to figure out if it is in solid
7190 VectorSet(end, start[0], start[1], model->normalmins[2]);
7191 memset(&trace, 0, sizeof(trace));
7193 trace.hitsupercontentsmask = hitsupercontentsmask;
7194 trace.skipsupercontentsmask = skipsupercontentsmask;
7195 trace.skipmaterialflagsmask = skipmaterialflagsmask;
7196 Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7197 return trace.hitsupercontents;
7203 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)
7205 Mod_CollisionBIH_TraceLineShared(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, &model->render_bih);
7209 bih_t *Mod_MakeCollisionBIH(model_t *model, qbool userendersurfaces, bih_t *out)
7217 int nummodelbrushes = model->nummodelbrushes;
7219 const int *collisionelement3i;
7220 const float *collisionvertex3f;
7221 const int *renderelement3i;
7222 const float *rendervertex3f;
7223 bih_leaf_t *bihleafs;
7224 bih_node_t *bihnodes;
7226 int *temp_leafsortscratch;
7227 const msurface_t *surface;
7228 const q3mbrush_t *brush;
7230 // find out how many BIH leaf nodes we need
7232 if (userendersurfaces)
7234 for (j = model->submodelsurfaces_start;j < model->submodelsurfaces_end;j++)
7235 bihnumleafs += model->data_surfaces[j].num_triangles;
7239 for (brushindex = 0, brush = model->brush.data_brushes + brushindex+model->firstmodelbrush;brushindex < nummodelbrushes;brushindex++, brush++)
7240 if (brush->colbrushf)
7242 for (j = model->submodelsurfaces_start;j < model->submodelsurfaces_end;j++)
7244 if (model->data_surfaces[j].texture->basematerialflags & MATERIALFLAG_MESHCOLLISIONS)
7245 bihnumleafs += model->data_surfaces[j].num_triangles + model->data_surfaces[j].num_collisiontriangles;
7247 bihnumleafs += model->data_surfaces[j].num_collisiontriangles;
7254 // allocate the memory for the BIH leaf nodes
7255 bihleafs = (bih_leaf_t *)Mem_Alloc(loadmodel->mempool, sizeof(bih_leaf_t) * bihnumleafs);
7257 // now populate the BIH leaf nodes
7260 // add render surfaces
7261 renderelement3i = model->surfmesh.data_element3i;
7262 rendervertex3f = model->surfmesh.data_vertex3f;
7263 for (j = model->submodelsurfaces_start; j < model->submodelsurfaces_end; j++)
7265 surface = model->data_surfaces + j;
7266 for (triangleindex = 0, e = renderelement3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
7268 if (!userendersurfaces && !(surface->texture->basematerialflags & MATERIALFLAG_MESHCOLLISIONS))
7270 bihleafs[bihleafindex].type = BIH_RENDERTRIANGLE;
7271 bihleafs[bihleafindex].textureindex = surface->texture - model->data_textures;
7272 bihleafs[bihleafindex].surfaceindex = surface - model->data_surfaces;
7273 bihleafs[bihleafindex].itemindex = triangleindex+surface->num_firsttriangle;
7274 bihleafs[bihleafindex].mins[0] = min(rendervertex3f[3*e[0]+0], min(rendervertex3f[3*e[1]+0], rendervertex3f[3*e[2]+0])) - 1;
7275 bihleafs[bihleafindex].mins[1] = min(rendervertex3f[3*e[0]+1], min(rendervertex3f[3*e[1]+1], rendervertex3f[3*e[2]+1])) - 1;
7276 bihleafs[bihleafindex].mins[2] = min(rendervertex3f[3*e[0]+2], min(rendervertex3f[3*e[1]+2], rendervertex3f[3*e[2]+2])) - 1;
7277 bihleafs[bihleafindex].maxs[0] = max(rendervertex3f[3*e[0]+0], max(rendervertex3f[3*e[1]+0], rendervertex3f[3*e[2]+0])) + 1;
7278 bihleafs[bihleafindex].maxs[1] = max(rendervertex3f[3*e[0]+1], max(rendervertex3f[3*e[1]+1], rendervertex3f[3*e[2]+1])) + 1;
7279 bihleafs[bihleafindex].maxs[2] = max(rendervertex3f[3*e[0]+2], max(rendervertex3f[3*e[1]+2], rendervertex3f[3*e[2]+2])) + 1;
7284 if (!userendersurfaces)
7286 // add collision brushes
7287 for (brushindex = 0, brush = model->brush.data_brushes + brushindex+model->firstmodelbrush;brushindex < nummodelbrushes;brushindex++, brush++)
7289 if (!brush->colbrushf)
7291 bihleafs[bihleafindex].type = BIH_BRUSH;
7292 bihleafs[bihleafindex].textureindex = brush->texture - model->data_textures;
7293 bihleafs[bihleafindex].surfaceindex = -1;
7294 bihleafs[bihleafindex].itemindex = brushindex+model->firstmodelbrush;
7295 VectorCopy(brush->colbrushf->mins, bihleafs[bihleafindex].mins);
7296 VectorCopy(brush->colbrushf->maxs, bihleafs[bihleafindex].maxs);
7300 // add collision surfaces
7301 collisionelement3i = model->brush.data_collisionelement3i;
7302 collisionvertex3f = model->brush.data_collisionvertex3f;
7303 for (j = model->submodelsurfaces_start; j < model->submodelsurfaces_end; j++)
7305 surface = model->data_surfaces + j;
7306 for (triangleindex = 0, e = collisionelement3i + 3*surface->num_firstcollisiontriangle;triangleindex < surface->num_collisiontriangles;triangleindex++, e += 3)
7308 bihleafs[bihleafindex].type = BIH_COLLISIONTRIANGLE;
7309 bihleafs[bihleafindex].textureindex = surface->texture - model->data_textures;
7310 bihleafs[bihleafindex].surfaceindex = surface - model->data_surfaces;
7311 bihleafs[bihleafindex].itemindex = triangleindex+surface->num_firstcollisiontriangle;
7312 bihleafs[bihleafindex].mins[0] = min(collisionvertex3f[3*e[0]+0], min(collisionvertex3f[3*e[1]+0], collisionvertex3f[3*e[2]+0])) - 1;
7313 bihleafs[bihleafindex].mins[1] = min(collisionvertex3f[3*e[0]+1], min(collisionvertex3f[3*e[1]+1], collisionvertex3f[3*e[2]+1])) - 1;
7314 bihleafs[bihleafindex].mins[2] = min(collisionvertex3f[3*e[0]+2], min(collisionvertex3f[3*e[1]+2], collisionvertex3f[3*e[2]+2])) - 1;
7315 bihleafs[bihleafindex].maxs[0] = max(collisionvertex3f[3*e[0]+0], max(collisionvertex3f[3*e[1]+0], collisionvertex3f[3*e[2]+0])) + 1;
7316 bihleafs[bihleafindex].maxs[1] = max(collisionvertex3f[3*e[0]+1], max(collisionvertex3f[3*e[1]+1], collisionvertex3f[3*e[2]+1])) + 1;
7317 bihleafs[bihleafindex].maxs[2] = max(collisionvertex3f[3*e[0]+2], max(collisionvertex3f[3*e[1]+2], collisionvertex3f[3*e[2]+2])) + 1;
7323 // allocate buffers for the produced and temporary data
7324 bihmaxnodes = bihnumleafs + 1;
7325 bihnodes = (bih_node_t *)Mem_Alloc(loadmodel->mempool, sizeof(bih_node_t) * bihmaxnodes);
7326 temp_leafsort = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int) * bihnumleafs * 2);
7327 temp_leafsortscratch = temp_leafsort + bihnumleafs;
7330 BIH_Build(out, bihnumleafs, bihleafs, bihmaxnodes, bihnodes, temp_leafsort, temp_leafsortscratch);
7332 // we're done with the temporary data
7333 Mem_Free(temp_leafsort);
7335 // resize the BIH nodes array if it over-allocated
7336 if (out->maxnodes > out->numnodes)
7338 out->maxnodes = out->numnodes;
7339 out->nodes = (bih_node_t *)Mem_Realloc(loadmodel->mempool, out->nodes, out->numnodes * sizeof(bih_node_t));
7345 static int Mod_Q3BSP_SuperContentsFromNativeContents(int nativecontents)
7347 int supercontents = 0;
7348 if (nativecontents & CONTENTSQ3_SOLID)
7349 supercontents |= SUPERCONTENTS_SOLID;
7350 if (nativecontents & CONTENTSQ3_WATER)
7351 supercontents |= SUPERCONTENTS_WATER;
7352 if (nativecontents & CONTENTSQ3_SLIME)
7353 supercontents |= SUPERCONTENTS_SLIME;
7354 if (nativecontents & CONTENTSQ3_LAVA)
7355 supercontents |= SUPERCONTENTS_LAVA;
7356 if (nativecontents & CONTENTSQ3_BODY)
7357 supercontents |= SUPERCONTENTS_BODY;
7358 if (nativecontents & CONTENTSQ3_CORPSE)
7359 supercontents |= SUPERCONTENTS_CORPSE;
7360 if (nativecontents & CONTENTSQ3_NODROP)
7361 supercontents |= SUPERCONTENTS_NODROP;
7362 if (nativecontents & CONTENTSQ3_PLAYERCLIP)
7363 supercontents |= SUPERCONTENTS_PLAYERCLIP;
7364 if (nativecontents & CONTENTSQ3_MONSTERCLIP)
7365 supercontents |= SUPERCONTENTS_MONSTERCLIP;
7366 if (nativecontents & CONTENTSQ3_DONOTENTER)
7367 supercontents |= SUPERCONTENTS_DONOTENTER;
7368 if (nativecontents & CONTENTSQ3_BOTCLIP)
7369 supercontents |= SUPERCONTENTS_BOTCLIP;
7370 if (!(nativecontents & CONTENTSQ3_TRANSLUCENT))
7371 supercontents |= SUPERCONTENTS_OPAQUE;
7372 return supercontents;
7375 static int Mod_Q3BSP_NativeContentsFromSuperContents(int supercontents)
7377 int nativecontents = 0;
7378 if (supercontents & SUPERCONTENTS_SOLID)
7379 nativecontents |= CONTENTSQ3_SOLID;
7380 if (supercontents & SUPERCONTENTS_WATER)
7381 nativecontents |= CONTENTSQ3_WATER;
7382 if (supercontents & SUPERCONTENTS_SLIME)
7383 nativecontents |= CONTENTSQ3_SLIME;
7384 if (supercontents & SUPERCONTENTS_LAVA)
7385 nativecontents |= CONTENTSQ3_LAVA;
7386 if (supercontents & SUPERCONTENTS_BODY)
7387 nativecontents |= CONTENTSQ3_BODY;
7388 if (supercontents & SUPERCONTENTS_CORPSE)
7389 nativecontents |= CONTENTSQ3_CORPSE;
7390 if (supercontents & SUPERCONTENTS_NODROP)
7391 nativecontents |= CONTENTSQ3_NODROP;
7392 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
7393 nativecontents |= CONTENTSQ3_PLAYERCLIP;
7394 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
7395 nativecontents |= CONTENTSQ3_MONSTERCLIP;
7396 if (supercontents & SUPERCONTENTS_DONOTENTER)
7397 nativecontents |= CONTENTSQ3_DONOTENTER;
7398 if (supercontents & SUPERCONTENTS_BOTCLIP)
7399 nativecontents |= CONTENTSQ3_BOTCLIP;
7400 if (!(supercontents & SUPERCONTENTS_OPAQUE))
7401 nativecontents |= CONTENTSQ3_TRANSLUCENT;
7402 return nativecontents;
7405 static void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
7410 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
7411 node = node->children[1];
7413 numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
7414 if (loadmodel->brush.num_leafs < numleafs)
7415 loadmodel->brush.num_leafs = numleafs;
7418 static void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
7421 q3dheader_t *header;
7422 float corner[3], yawradius, modelradius;
7424 mod->modeldatatypestring = "Q3BSP";
7426 mod->type = mod_brushq3;
7427 mod->brush.ishlbsp = false;
7428 mod->brush.isbsp2rmqe = false;
7429 mod->brush.isbsp2 = false;
7430 mod->brush.isq2bsp = false;
7431 mod->brush.isq3bsp = true;
7432 mod->brush.skymasking = true;
7433 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
7436 header = (q3dheader_t *)buffer;
7437 if((char *) bufferend < (char *) buffer + sizeof(q3dheader_t))
7438 Host_Error("Mod_Q3BSP_Load: %s is smaller than its header", mod->name);
7440 i = LittleLong(header->version);
7441 if (i != Q3BSPVERSION && i != Q3BSPVERSION_IG && i != Q3BSPVERSION_LIVE)
7442 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
7444 mod->soundfromcenter = true;
7445 mod->TraceBox = Mod_CollisionBIH_TraceBox;
7446 mod->TraceBrush = Mod_CollisionBIH_TraceBrush;
7447 mod->TraceLine = Mod_CollisionBIH_TraceLine;
7448 mod->TracePoint = Mod_CollisionBIH_TracePoint;
7449 mod->PointSuperContents = Mod_CollisionBIH_PointSuperContents;
7450 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
7451 mod->brush.TraceLineOfSight = Mod_Q3BSP_TraceLineOfSight;
7452 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
7453 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
7454 mod->brush.GetPVS = Mod_BSP_GetPVS;
7455 mod->brush.FatPVS = Mod_BSP_FatPVS;
7456 mod->brush.BoxTouchingPVS = Mod_BSP_BoxTouchingPVS;
7457 mod->brush.BoxTouchingLeafPVS = Mod_BSP_BoxTouchingLeafPVS;
7458 mod->brush.BoxTouchingVisibleLeafs = Mod_BSP_BoxTouchingVisibleLeafs;
7459 mod->brush.FindBoxClusters = Mod_BSP_FindBoxClusters;
7460 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
7461 mod->brush.FindNonSolidLocation = Mod_BSP_FindNonSolidLocation;
7462 mod->brush.AmbientSoundLevelsForPoint = NULL;
7463 mod->brush.RoundUpToHullSize = NULL;
7464 mod->brush.PointInLeaf = Mod_BSP_PointInLeaf;
7465 mod->Draw = R_Mod_Draw;
7466 mod->DrawDepth = R_Mod_DrawDepth;
7467 mod->DrawDebug = R_Mod_DrawDebug;
7468 mod->DrawPrepass = R_Mod_DrawPrepass;
7469 mod->GetLightInfo = R_Mod_GetLightInfo;
7470 mod->CompileShadowMap = R_Mod_CompileShadowMap;
7471 mod->DrawShadowMap = R_Mod_DrawShadowMap;
7472 mod->DrawLight = R_Mod_DrawLight;
7474 mod_base = (unsigned char *)header;
7476 // swap all the lumps
7477 header->ident = LittleLong(header->ident);
7478 header->version = LittleLong(header->version);
7479 lumps = (header->version == Q3BSPVERSION_LIVE) ? Q3HEADER_LUMPS_LIVE : Q3HEADER_LUMPS;
7480 for (i = 0;i < lumps;i++)
7482 j = (header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs));
7483 if((char *) bufferend < (char *) buffer + j)
7484 Host_Error("Mod_Q3BSP_Load: %s has a lump that starts outside the file!", mod->name);
7485 j += (header->lumps[i].filelen = LittleLong(header->lumps[i].filelen));
7486 if((char *) bufferend < (char *) buffer + j)
7487 Host_Error("Mod_Q3BSP_Load: %s has a lump that ends outside the file!", mod->name);
7490 * NO, do NOT clear them!
7491 * they contain actual data referenced by other stuff.
7492 * Instead, before using the advertisements lump, check header->versio
7494 * Sorry, but otherwise it breaks memory of the first lump.
7495 for (i = lumps;i < Q3HEADER_LUMPS_MAX;i++)
7497 header->lumps[i].fileofs = 0;
7498 header->lumps[i].filelen = 0;
7502 mod->brush.qw_md4sum = 0;
7503 mod->brush.qw_md4sum2 = 0;
7504 for (i = 0;i < lumps;i++)
7506 if (i == Q3LUMP_ENTITIES)
7508 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
7509 if (i == Q3LUMP_PVS || i == Q3LUMP_LEAFS || i == Q3LUMP_NODES)
7511 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
7513 // all this checksumming can take a while, so let's send keepalives here too
7514 CL_KeepaliveMessage(false);
7517 // allocate a texture pool if we need it
7518 if (mod->texturepool == NULL)
7519 mod->texturepool = R_AllocTexturePool();
7521 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
7522 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
7523 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
7524 if (header->version == Q3BSPVERSION_IG)
7525 Mod_Q3BSP_LoadBrushSides_IG(&header->lumps[Q3LUMP_BRUSHSIDES]);
7527 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
7528 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
7529 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
7530 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
7531 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
7532 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS], &header->lumps[Q3LUMP_FACES]);
7533 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
7534 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
7535 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
7536 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
7537 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
7538 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
7539 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
7540 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
7541 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
7543 // the MakePortals code works fine on the q3bsp data as well
7544 if (mod_bsp_portalize.integer && cls.state != ca_dedicated)
7545 Mod_BSP_MakePortals();
7547 // FIXME: shader alpha should replace r_wateralpha support in q3bsp
7548 loadmodel->brush.supportwateralpha = true;
7550 loadmodel->brush.num_leafs = 0;
7551 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
7553 if (loadmodel->brush.numsubmodels)
7554 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
7557 mod->modelsurfaces_sorted = (int*)Mem_Alloc(loadmodel->mempool, mod->num_surfaces * sizeof(*mod->modelsurfaces_sorted));
7558 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
7563 // duplicate the basic information
7564 dpsnprintf(name, sizeof(name), "*%i", i);
7565 mod = Mod_FindName(name, loadmodel->name);
7566 // copy the base model to this one
7568 // rename the clone back to its proper name
7569 dp_strlcpy(mod->name, name, sizeof(mod->name));
7570 mod->brush.parentmodel = loadmodel;
7571 // textures and memory belong to the main model
7572 mod->texturepool = NULL;
7573 mod->mempool = NULL;
7574 mod->brush.GetPVS = NULL;
7575 mod->brush.FatPVS = NULL;
7576 mod->brush.BoxTouchingPVS = NULL;
7577 mod->brush.BoxTouchingLeafPVS = NULL;
7578 mod->brush.BoxTouchingVisibleLeafs = NULL;
7579 mod->brush.FindBoxClusters = NULL;
7580 mod->brush.LightPoint = NULL;
7581 mod->brush.AmbientSoundLevelsForPoint = NULL;
7583 mod->brush.submodel = i;
7584 if (loadmodel->brush.submodels)
7585 loadmodel->brush.submodels[i] = mod;
7587 // make the model surface list (used by shadowing/lighting)
7588 mod->submodelsurfaces_start = mod->brushq3.data_models[i].firstface;
7589 mod->submodelsurfaces_end = mod->brushq3.data_models[i].firstface + mod->brushq3.data_models[i].numfaces;
7590 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
7591 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
7593 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
7594 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
7595 // enlarge the bounding box to enclose all geometry of this model,
7596 // because q3map2 sometimes lies (mostly to affect the lightgrid),
7597 // which can in turn mess up the farclip (as well as culling when
7598 // outside the level - an unimportant concern)
7600 //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]);
7601 for (j = mod->submodelsurfaces_start;j < mod->submodelsurfaces_end;j++)
7603 const msurface_t *surface = mod->data_surfaces + j;
7604 const float *v = mod->surfmesh.data_vertex3f + 3 * surface->num_firstvertex;
7606 if (!surface->num_vertices)
7608 for (k = 0;k < surface->num_vertices;k++, v += 3)
7610 mod->normalmins[0] = min(mod->normalmins[0], v[0]);
7611 mod->normalmins[1] = min(mod->normalmins[1], v[1]);
7612 mod->normalmins[2] = min(mod->normalmins[2], v[2]);
7613 mod->normalmaxs[0] = max(mod->normalmaxs[0], v[0]);
7614 mod->normalmaxs[1] = max(mod->normalmaxs[1], v[1]);
7615 mod->normalmaxs[2] = max(mod->normalmaxs[2], v[2]);
7618 //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]);
7619 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
7620 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
7621 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
7622 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
7623 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
7624 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
7625 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
7626 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
7627 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
7628 mod->yawmins[2] = mod->normalmins[2];
7629 mod->yawmaxs[2] = mod->normalmaxs[2];
7630 mod->radius = modelradius;
7631 mod->radius2 = modelradius * modelradius;
7633 Mod_SetDrawSkyAndWater(mod);
7634 Mod_MakeCollisionBIH(mod, false, &mod->collision_bih);
7635 Mod_MakeCollisionBIH(mod, true, &mod->render_bih);
7637 // generate VBOs and other shared data before cloning submodels
7643 // make the model surface list (used by shadowing/lighting)
7644 Mod_MakeSortedSurfaces(loadmodel);
7646 if (mod_q3bsp_sRGBlightmaps.integer)
7648 if (vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
7650 // actually we do in sRGB fallback with sRGB lightmaps: Image_sRGBFloatFromLinear_Lightmap(Image_LinearFloatFromsRGBFloat(x))
7651 // neutral point is at Image_sRGBFloatFromLinearFloat(0.5)
7652 // so we need to map Image_sRGBFloatFromLinearFloat(0.5) to 0.5
7653 // factor is 0.5 / Image_sRGBFloatFromLinearFloat(0.5)
7654 //loadmodel->lightmapscale *= 0.679942f; // fixes neutral level
7656 else // if this is NOT set, regular rendering looks right by this requirement anyway
7659 // we want color 1 to do the same as without sRGB
7660 // so, we want to map 1 to Image_LinearFloatFromsRGBFloat(2) instead of to 2
7661 loadmodel->lightmapscale *= 2.476923f; // fixes max level
7664 // neutral level 0.5 gets uploaded as sRGB and becomes Image_LinearFloatFromsRGBFloat(0.5)
7665 // we need to undo that
7666 loadmodel->lightmapscale *= 2.336f; // fixes neutral level
7670 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);
7673 void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
7675 int i = LittleLong(((int *)buffer)[1]);
7676 if (i == Q3BSPVERSION || i == Q3BSPVERSION_IG || i == Q3BSPVERSION_LIVE)
7677 Mod_Q3BSP_Load(mod,buffer, bufferend);
7678 else if (i == Q2BSPVERSION)
7679 Mod_Q2BSP_Load(mod,buffer, bufferend);
7681 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i", i);
7684 static void Mod_VBSP_LoadEntities(sizebuf_t *sb)
7686 loadmodel->brush.entities = NULL;
7689 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, sb->cursize + 1);
7690 MSG_ReadBytes(sb, sb->cursize, (unsigned char *)loadmodel->brush.entities);
7691 loadmodel->brush.entities[sb->cursize] = 0;
7694 static void Mod_VBSP_LoadVertexes(sizebuf_t *sb)
7698 int structsize = 12;
7700 if (sb->cursize % structsize)
7701 Host_Error("Mod_VBSP_LoadVertexes: funny lump size in %s",loadmodel->name);
7702 count = sb->cursize / structsize;
7703 out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
7705 loadmodel->brushq1.vertexes = out;
7706 loadmodel->brushq1.numvertexes = count;
7708 for ( i=0 ; i<count ; i++, out++)
7710 out->position[0] = MSG_ReadLittleFloat(sb);
7711 out->position[1] = MSG_ReadLittleFloat(sb);
7712 out->position[2] = MSG_ReadLittleFloat(sb);
7716 static void Mod_VBSP_LoadEdges(sizebuf_t *sb)
7722 if (sb->cursize % structsize)
7723 Host_Error("Mod_VBSP_LoadEdges: funny lump size in %s",loadmodel->name);
7724 count = sb->cursize / structsize;
7725 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
7727 loadmodel->brushq1.edges = out;
7728 loadmodel->brushq1.numedges = count;
7730 for ( i=0 ; i<count ; i++, out++)
7732 out->v[0] = (unsigned short)MSG_ReadLittleShort(sb);
7733 out->v[1] = (unsigned short)MSG_ReadLittleShort(sb);
7735 if ((int)out->v[0] >= loadmodel->brushq1.numvertexes || (int)out->v[1] >= loadmodel->brushq1.numvertexes)
7737 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);
7738 if(!loadmodel->brushq1.numvertexes)
7739 Host_Error("Mod_VBSP_LoadEdges: %s has edges but no vertexes, cannot fix\n", loadmodel->name);
7747 static void Mod_VBSP_LoadSurfedges(sizebuf_t *sb)
7752 if (sb->cursize % structsize)
7753 Host_Error("Mod_VBSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
7754 loadmodel->brushq1.numsurfedges = sb->cursize / structsize;
7755 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
7757 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
7758 loadmodel->brushq1.surfedges[i] = MSG_ReadLittleLong(sb);
7761 static void Mod_VBSP_LoadTextures(sizebuf_t *sb)
7763 Con_Printf(CON_WARN "Mod_VBSP_LoadTextures: Don't know how to do this yet\n");
7766 static void Mod_VBSP_LoadPlanes(sizebuf_t *sb)
7770 int structsize = 20;
7772 if (sb->cursize % structsize)
7773 Host_Error("Mod_VBSP_LoadPlanes: funny lump size in %s", loadmodel->name);
7774 loadmodel->brush.num_planes = sb->cursize / structsize;
7775 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
7777 for (i = 0;i < loadmodel->brush.num_planes;i++, out++)
7779 out->normal[0] = MSG_ReadLittleFloat(sb);
7780 out->normal[1] = MSG_ReadLittleFloat(sb);
7781 out->normal[2] = MSG_ReadLittleFloat(sb);
7782 out->dist = MSG_ReadLittleFloat(sb);
7783 MSG_ReadLittleLong(sb); // type is not used, we use PlaneClassify
7788 static void Mod_VBSP_LoadTexinfo(sizebuf_t *sb)
7791 int i, j, k, count, miptex;
7792 int structsize = 72;
7794 if (sb->cursize % structsize)
7795 Host_Error("Mod_VBSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
7796 count = sb->cursize / structsize;
7797 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
7799 loadmodel->brushq1.texinfo = out;
7800 loadmodel->brushq1.numtexinfo = count;
7802 for (i = 0;i < count;i++, out++)
7804 for (k = 0;k < 2;k++)
7805 for (j = 0;j < 4;j++)
7806 out->vecs[k][j] = MSG_ReadLittleFloat(sb);
7808 for (k = 0;k < 2;k++)
7809 for (j = 0;j < 4;j++)
7810 MSG_ReadLittleFloat(sb); // TODO lightmapVecs
7812 out->q1flags = MSG_ReadLittleLong(sb);
7813 miptex = MSG_ReadLittleLong(sb);
7815 if (out->q1flags & TEX_SPECIAL)
7817 // if texture chosen is NULL or the shader needs a lightmap,
7818 // force to notexture water shader
7819 out->textureindex = loadmodel->num_textures - 1;
7823 // if texture chosen is NULL, force to notexture
7824 out->textureindex = loadmodel->num_textures - 2;
7826 // see if the specified miptex is valid and try to use it instead
7827 if (loadmodel->data_textures)
7829 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
7830 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
7832 out->textureindex = miptex;
7837 static void Mod_VBSP_LoadFaces(sizebuf_t *sb)
7839 msurface_t *surface;
7840 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber, lightmapsize, totallightmapsamples, lightmapoffset, texinfoindex;
7841 float texmins[2], texmaxs[2], val;
7842 rtexture_t *lightmaptexture, *deluxemaptexture;
7844 int structsize = 56;
7846 if (sb->cursize % structsize)
7847 Host_Error("Mod_VBSP_LoadFaces: funny lump size in %s",loadmodel->name);
7848 count = sb->cursize / structsize;
7849 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
7850 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
7852 loadmodel->num_surfaces = count;
7854 loadmodel->brushq1.firstrender = true;
7855 loadmodel->brushq1.lightmapupdateflags = (unsigned char *)Mem_Alloc(loadmodel->mempool, count*sizeof(unsigned char));
7859 for (surfacenum = 0;surfacenum < count;surfacenum++)
7861 numedges = BuffLittleShort(sb->data + structsize * surfacenum + 8);
7862 totalverts += numedges;
7863 totaltris += numedges - 2;
7866 Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false);
7868 lightmaptexture = NULL;
7869 deluxemaptexture = r_texture_blanknormalmap;
7871 lightmapsize = bound(256, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d);
7872 totallightmapsamples = 0;
7876 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
7878 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
7879 planenum = (unsigned short)MSG_ReadLittleShort(sb);
7880 /*side = */MSG_ReadLittleShort(sb); // TODO support onNode?
7881 firstedge = MSG_ReadLittleLong(sb);
7882 numedges = (unsigned short)MSG_ReadLittleShort(sb);
7883 texinfoindex = (unsigned short)MSG_ReadLittleShort(sb);
7884 MSG_ReadLittleLong(sb); // skipping over dispinfo and surfaceFogVolumeID, both short
7885 for (i = 0;i < MAXLIGHTMAPS;i++)
7886 surface->lightmapinfo->styles[i] = MSG_ReadByte(sb);
7887 lightmapoffset = MSG_ReadLittleLong(sb);
7889 // FIXME: validate edges, texinfo, etc?
7890 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)
7891 Host_Error("Mod_VBSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)", firstedge, numedges, loadmodel->brushq1.numsurfedges);
7892 if ((unsigned int) texinfoindex >= (unsigned int) loadmodel->brushq1.numtexinfo)
7893 Host_Error("Mod_VBSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)", texinfoindex, loadmodel->brushq1.numtexinfo);
7894 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
7895 Host_Error("Mod_VBSP_LoadFaces: invalid plane index %i (model has %i planes)", planenum, loadmodel->brush.num_planes);
7897 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + texinfoindex;
7898 surface->texture = loadmodel->data_textures + surface->lightmapinfo->texinfo->textureindex;
7900 // Q2BSP doesn't use lightmaps on sky or warped surfaces (water), but still has a lightofs of 0
7901 if (lightmapoffset == 0 && (surface->texture->q2flags & (Q2SURF_SKY | Q2SURF_WARP)))
7902 lightmapoffset = -1;
7904 //surface->flags = surface->texture->flags;
7905 //if (LittleShort(in->side))
7906 // surface->flags |= SURF_PLANEBACK;
7907 //surface->plane = loadmodel->brush.data_planes + planenum;
7909 surface->num_firstvertex = totalverts;
7910 surface->num_vertices = numedges;
7911 surface->num_firsttriangle = totaltris;
7912 surface->num_triangles = numedges - 2;
7913 totalverts += numedges;
7914 totaltris += numedges - 2;
7916 // convert edges back to a normal polygon
7917 for (i = 0;i < surface->num_vertices;i++)
7919 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
7921 // note: the q1bsp format does not allow a 0 surfedge (it would have no negative counterpart)
7923 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
7925 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
7926 s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
7927 t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
7928 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
7929 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
7930 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
7931 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
7932 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
7935 for (i = 0;i < surface->num_triangles;i++)
7937 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
7938 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
7939 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
7942 // compile additional data about the surface geometry
7943 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);
7944 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);
7945 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
7947 // generate surface extents information
7948 texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
7949 texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
7950 for (i = 1;i < surface->num_vertices;i++)
7952 for (j = 0;j < 2;j++)
7954 val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
7955 texmins[j] = min(texmins[j], val);
7956 texmaxs[j] = max(texmaxs[j], val);
7959 for (i = 0;i < 2;i++)
7961 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
7962 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
7965 smax = surface->lightmapinfo->extents[0] >> 4;
7966 tmax = surface->lightmapinfo->extents[1] >> 4;
7967 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
7968 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
7971 surface->lightmaptexture = NULL;
7972 surface->deluxemaptexture = r_texture_blanknormalmap;
7973 if (lightmapoffset == -1)
7975 surface->lightmapinfo->samples = NULL;
7977 // give non-lightmapped water a 1x white lightmap
7978 if (!loadmodel->brush.isq2bsp && surface->texture->name[0] == '*' && (surface->lightmapinfo->texinfo->q1flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
7980 surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
7981 surface->lightmapinfo->styles[0] = 0;
7982 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
7987 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + lightmapoffset;
7989 // check if we should apply a lightmap to this
7990 if (!(surface->lightmapinfo->texinfo->q1flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
7992 if (ssize > 256 || tsize > 256)
7993 Host_Error("Bad surface extents");
7995 if (lightmapsize < ssize)
7996 lightmapsize = ssize;
7997 if (lightmapsize < tsize)
7998 lightmapsize = tsize;
8000 totallightmapsamples += ssize*tsize;
8002 // force lightmap upload on first time seeing the surface
8004 // additionally this is used by the later code to see if a
8005 // lightmap is needed on this surface (rather than duplicating the
8007 loadmodel->brushq1.lightmapupdateflags[surfacenum] = true;
8008 loadmodel->lit = true;
8012 // small maps (such as ammo boxes especially) don't need big lightmap
8013 // textures, so this code tries to guess a good size based on
8014 // totallightmapsamples (size of the lightmaps lump basically), as well as
8015 // trying to max out the size if there is a lot of lightmap data to store
8016 // additionally, never choose a lightmapsize that is smaller than the
8017 // largest surface encountered (as it would fail)
8019 for (lightmapsize = 64; (lightmapsize < i) && (lightmapsize < bound(128, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d)) && (totallightmapsamples > lightmapsize*lightmapsize); lightmapsize*=2)
8022 // now that we've decided the lightmap texture size, we can do the rest
8023 if (cls.state != ca_dedicated)
8025 int stainmapsize = 0;
8026 mod_alloclightmap_state_t allocState;
8028 Mod_AllocLightmap_Init(&allocState, loadmodel->mempool, lightmapsize, lightmapsize);
8029 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
8031 int iu, iv, lightmapx = 0, lightmapy = 0;
8032 float u, v, ubase, vbase, uscale, vscale;
8034 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
8037 smax = surface->lightmapinfo->extents[0] >> 4;
8038 tmax = surface->lightmapinfo->extents[1] >> 4;
8039 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
8040 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
8041 stainmapsize += ssize * tsize * 3;
8043 if (!lightmaptexture || !Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy))
8045 // allocate a texture pool if we need it
8046 if (loadmodel->texturepool == NULL)
8047 loadmodel->texturepool = R_AllocTexturePool();
8048 // could not find room, make a new lightmap
8049 loadmodel->brushq3.num_mergedlightmaps = lightmapnumber + 1;
8050 loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Realloc(loadmodel->mempool, loadmodel->brushq3.data_lightmaps, loadmodel->brushq3.num_mergedlightmaps * sizeof(loadmodel->brushq3.data_lightmaps[0]));
8051 loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Realloc(loadmodel->mempool, loadmodel->brushq3.data_deluxemaps, loadmodel->brushq3.num_mergedlightmaps * sizeof(loadmodel->brushq3.data_deluxemaps[0]));
8052 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);
8053 if (loadmodel->brushq1.nmaplightdata)
8054 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);
8056 Mod_AllocLightmap_Reset(&allocState);
8057 Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy);
8059 surface->lightmaptexture = lightmaptexture;
8060 surface->deluxemaptexture = deluxemaptexture;
8061 surface->lightmapinfo->lightmaporigin[0] = lightmapx;
8062 surface->lightmapinfo->lightmaporigin[1] = lightmapy;
8064 uscale = 1.0f / (float)lightmapsize;
8065 vscale = 1.0f / (float)lightmapsize;
8066 ubase = lightmapx * uscale;
8067 vbase = lightmapy * vscale;
8069 for (i = 0;i < surface->num_vertices;i++)
8071 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);
8072 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);
8073 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
8074 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
8075 // LadyHavoc: calc lightmap data offset for vertex lighting to use
8078 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
8082 if (cl_stainmaps.integer)
8084 // allocate stainmaps for permanent marks on walls and clear white
8085 unsigned char *stainsamples = NULL;
8086 stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, stainmapsize);
8087 memset(stainsamples, 255, stainmapsize);
8089 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
8091 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
8093 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
8094 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
8095 surface->lightmapinfo->stainsamples = stainsamples;
8096 stainsamples += ssize * tsize * 3;
8101 // generate ushort elements array if possible
8102 if (loadmodel->surfmesh.data_element3s)
8103 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
8104 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
8108 // Cloudwalk: Wasn't sober when I wrote this. I screamed and ran away at the face loader
8109 void Mod_VBSP_Load(model_t *mod, void *buffer, void *bufferend)
8111 static cvar_t *testing = NULL; // TEMPORARY
8114 sizebuf_t lumpsb[HL2HEADER_LUMPS];
8116 if(!testing || !testing->integer)
8119 testing = Cvar_Get(&cvars_all, "mod_bsp_vbsptest", "0", CF_CLIENT | CF_SERVER, "uhhh");
8120 Host_Error("Mod_VBSP_Load: not yet fully implemented. Change the now-generated \"mod_bsp_vbsptest\" to 1 if you wish to test this");
8125 MSG_InitReadBuffer(&sb, (unsigned char *)buffer, (unsigned char *)bufferend - (unsigned char *)buffer);
8127 mod->type = mod_brushhl2;
8129 MSG_ReadLittleLong(&sb);
8130 MSG_ReadLittleLong(&sb); // TODO version check
8132 mod->modeldatatypestring = "VBSP";
8135 for (i = 0; i < HL2HEADER_LUMPS; i++)
8137 int offset = MSG_ReadLittleLong(&sb);
8138 int size = MSG_ReadLittleLong(&sb);
8139 MSG_ReadLittleLong(&sb); // TODO support version
8140 MSG_ReadLittleLong(&sb); // TODO support ident
8141 if (offset < 0 || offset + size > sb.cursize)
8142 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);
8143 MSG_InitReadBuffer(&lumpsb[i], sb.data + offset, size);
8146 MSG_ReadLittleLong(&sb); // TODO support revision field
8148 mod->soundfromcenter = true;
8149 mod->TraceBox = Mod_CollisionBIH_TraceBox;
8150 mod->TraceBrush = Mod_CollisionBIH_TraceBrush;
8151 mod->TraceLine = Mod_CollisionBIH_TraceLine;
8152 mod->TracePoint = Mod_CollisionBIH_TracePoint;
8153 mod->PointSuperContents = Mod_CollisionBIH_PointSuperContents;
8154 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
8155 mod->brush.TraceLineOfSight = Mod_Q3BSP_TraceLineOfSight; // probably not correct
8156 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents; // probably not correct
8157 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents; // probably not correct
8158 mod->brush.GetPVS = Mod_BSP_GetPVS;
8159 mod->brush.FatPVS = Mod_BSP_FatPVS;
8160 mod->brush.BoxTouchingPVS = Mod_BSP_BoxTouchingPVS;
8161 mod->brush.BoxTouchingLeafPVS = Mod_BSP_BoxTouchingLeafPVS;
8162 mod->brush.BoxTouchingVisibleLeafs = Mod_BSP_BoxTouchingVisibleLeafs;
8163 mod->brush.FindBoxClusters = Mod_BSP_FindBoxClusters;
8164 mod->brush.LightPoint = Mod_Q3BSP_LightPoint; // probably not correct
8165 mod->brush.FindNonSolidLocation = Mod_BSP_FindNonSolidLocation;
8166 mod->brush.AmbientSoundLevelsForPoint = NULL;
8167 mod->brush.RoundUpToHullSize = NULL;
8168 mod->brush.PointInLeaf = Mod_BSP_PointInLeaf;
8169 mod->Draw = R_Mod_Draw;
8170 mod->DrawDepth = R_Mod_DrawDepth;
8171 mod->DrawDebug = R_Mod_DrawDebug;
8172 mod->DrawPrepass = R_Mod_DrawPrepass;
8173 mod->GetLightInfo = R_Mod_GetLightInfo;
8174 mod->CompileShadowMap = R_Mod_CompileShadowMap;
8175 mod->DrawShadowMap = R_Mod_DrawShadowMap;
8176 mod->DrawLight = R_Mod_DrawLight;
8178 // allocate a texture pool if we need it
8179 if (mod->texturepool == NULL)
8180 mod->texturepool = R_AllocTexturePool();
8182 Mod_VBSP_LoadEntities(&lumpsb[HL2LUMP_ENTITIES]);
8183 Mod_VBSP_LoadVertexes(&lumpsb[HL2LUMP_VERTEXES]);
8184 Mod_VBSP_LoadEdges(&lumpsb[HL2LUMP_EDGES]);
8185 Mod_VBSP_LoadSurfedges(&lumpsb[HL2LUMP_SURFEDGES]);
8186 Mod_VBSP_LoadTextures(&lumpsb[HL2LUMP_TEXDATA/*?*/]);
8187 //Mod_VBSP_LoadLighting(&lumpsb[HL2LUMP_LIGHTING]);
8188 Mod_VBSP_LoadPlanes(&lumpsb[HL2LUMP_PLANES]);
8189 Mod_VBSP_LoadTexinfo(&lumpsb[HL2LUMP_TEXINFO]);
8192 Mod_VBSP_LoadFaces(&lumpsb[HL2LUMP_FACES]);
8196 void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend)
8198 Host_Error("Mod_MAP_Load: not yet implemented");
8201 typedef struct objvertex_s
8212 static unsigned char nobsp_pvs[1] = {1};
8214 void Mod_OBJ_Load(model_t *mod, void *buffer, void *bufferend)
8216 const char *textbase = (char *)buffer, *text = textbase;
8220 char materialname[MAX_QPATH];
8221 int i, j, l, numvertices, firstvertex, firsttriangle, elementindex, vertexindex, surfacevertices, surfacetriangles, surfaceelements, submodelindex = 0;
8222 int index1, index2, index3;
8223 objvertex_t vfirst, vprev, vcurrent;
8226 int numtriangles = 0;
8227 int maxtriangles = 0;
8228 objvertex_t *vertices = NULL;
8230 int maxtextures = 0, numtextures = 0, textureindex = 0;
8231 int maxv = 0, numv = 1;
8232 int maxvt = 0, numvt = 1;
8233 int maxvn = 0, numvn = 1;
8234 char *texturenames = NULL;
8235 float dist, modelradius, modelyawradius, yawradius;
8236 float *obj_v = NULL;
8237 float *obj_vt = NULL;
8238 float *obj_vn = NULL;
8242 objvertex_t *thisvertex = NULL;
8243 int vertexhashindex;
8244 int *vertexhashtable = NULL;
8245 objvertex_t *vertexhashdata = NULL;
8246 objvertex_t *vdata = NULL;
8247 int vertexhashsize = 0;
8248 int vertexhashcount = 0;
8249 skinfile_t *skinfiles = NULL;
8250 unsigned char *data = NULL;
8251 int *submodelfirstsurface;
8252 msurface_t *tempsurface;
8253 msurface_t *tempsurfaces;
8255 memset(&vfirst, 0, sizeof(vfirst));
8256 memset(&vprev, 0, sizeof(vprev));
8257 memset(&vcurrent, 0, sizeof(vcurrent));
8259 dpsnprintf(materialname, sizeof(materialname), "%s", loadmodel->name);
8261 loadmodel->modeldatatypestring = "OBJ";
8263 loadmodel->type = mod_obj;
8264 loadmodel->soundfromcenter = true;
8265 loadmodel->TraceBox = Mod_CollisionBIH_TraceBox;
8266 loadmodel->TraceBrush = Mod_CollisionBIH_TraceBrush;
8267 loadmodel->TraceLine = Mod_CollisionBIH_TraceLine;
8268 loadmodel->TracePoint = Mod_CollisionBIH_TracePoint_Mesh;
8269 loadmodel->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
8270 loadmodel->PointSuperContents = Mod_CollisionBIH_PointSuperContents_Mesh;
8271 loadmodel->brush.TraceLineOfSight = NULL;
8272 loadmodel->brush.SuperContentsFromNativeContents = NULL;
8273 loadmodel->brush.NativeContentsFromSuperContents = NULL;
8274 loadmodel->brush.GetPVS = NULL;
8275 loadmodel->brush.FatPVS = NULL;
8276 loadmodel->brush.BoxTouchingPVS = NULL;
8277 loadmodel->brush.BoxTouchingLeafPVS = NULL;
8278 loadmodel->brush.BoxTouchingVisibleLeafs = NULL;
8279 loadmodel->brush.FindBoxClusters = NULL;
8280 loadmodel->brush.LightPoint = NULL;
8281 loadmodel->brush.FindNonSolidLocation = NULL;
8282 loadmodel->brush.AmbientSoundLevelsForPoint = NULL;
8283 loadmodel->brush.RoundUpToHullSize = NULL;
8284 loadmodel->brush.PointInLeaf = NULL;
8285 loadmodel->Draw = R_Mod_Draw;
8286 loadmodel->DrawDepth = R_Mod_DrawDepth;
8287 loadmodel->DrawDebug = R_Mod_DrawDebug;
8288 loadmodel->DrawPrepass = R_Mod_DrawPrepass;
8289 loadmodel->GetLightInfo = R_Mod_GetLightInfo;
8290 loadmodel->CompileShadowMap = R_Mod_CompileShadowMap;
8291 loadmodel->DrawShadowMap = R_Mod_DrawShadowMap;
8292 loadmodel->DrawLight = R_Mod_DrawLight;
8294 skinfiles = Mod_LoadSkinFiles();
8295 if (loadmodel->numskins < 1)
8296 loadmodel->numskins = 1;
8298 // make skinscenes for the skins (no groups)
8299 loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
8300 for (i = 0;i < loadmodel->numskins;i++)
8302 loadmodel->skinscenes[i].firstframe = i;
8303 loadmodel->skinscenes[i].framecount = 1;
8304 loadmodel->skinscenes[i].loop = true;
8305 loadmodel->skinscenes[i].framerate = 10;
8311 // we always have model 0, i.e. the first "submodel"
8312 loadmodel->brush.numsubmodels = 1;
8314 // parse the OBJ text now
8317 static char emptyarg[1] = "";
8322 for (linelen = 0;text[linelen] && text[linelen] != '\r' && text[linelen] != '\n';linelen++)
8323 line[linelen] = text[linelen];
8325 for (argc = 0;argc < 4;argc++)
8326 argv[argc] = emptyarg;
8329 while (*s == ' ' || *s == '\t')
8339 while (*s == ' ' || *s == '\t')
8349 if (argv[0][0] == '#')
8351 if (!strcmp(argv[0], "v"))
8355 maxv = max(maxv * 2, 1024);
8356 obj_v = (float *)Mem_Realloc(tempmempool, obj_v, maxv * sizeof(float[3]));
8358 if(mod_obj_orientation.integer)
8360 obj_v[numv*3+0] = atof(argv[1]);
8361 obj_v[numv*3+2] = atof(argv[2]);
8362 obj_v[numv*3+1] = atof(argv[3]);
8366 obj_v[numv*3+0] = atof(argv[1]);
8367 obj_v[numv*3+1] = atof(argv[2]);
8368 obj_v[numv*3+2] = atof(argv[3]);
8372 else if (!strcmp(argv[0], "vt"))
8376 maxvt = max(maxvt * 2, 1024);
8377 obj_vt = (float *)Mem_Realloc(tempmempool, obj_vt, maxvt * sizeof(float[2]));
8379 obj_vt[numvt*2+0] = atof(argv[1]);
8380 obj_vt[numvt*2+1] = 1-atof(argv[2]);
8383 else if (!strcmp(argv[0], "vn"))
8387 maxvn = max(maxvn * 2, 1024);
8388 obj_vn = (float *)Mem_Realloc(tempmempool, obj_vn, maxvn * sizeof(float[3]));
8390 if(mod_obj_orientation.integer)
8392 obj_vn[numvn*3+0] = atof(argv[1]);
8393 obj_vn[numvn*3+2] = atof(argv[2]);
8394 obj_vn[numvn*3+1] = atof(argv[3]);
8398 obj_vn[numvn*3+0] = atof(argv[1]);
8399 obj_vn[numvn*3+1] = atof(argv[2]);
8400 obj_vn[numvn*3+2] = atof(argv[3]);
8404 else if (!strcmp(argv[0], "f"))
8408 if (maxtextures <= numtextures)
8410 maxtextures = max(maxtextures * 2, 256);
8411 texturenames = (char *)Mem_Realloc(loadmodel->mempool, texturenames, maxtextures * MAX_QPATH);
8413 textureindex = numtextures++;
8414 dp_strlcpy(texturenames + textureindex*MAX_QPATH, loadmodel->name, MAX_QPATH);
8416 for (j = 1;j < argc;j++)
8418 index1 = atoi(argv[j]);
8419 while(argv[j][0] && argv[j][0] != '/')
8423 index2 = atoi(argv[j]);
8424 while(argv[j][0] && argv[j][0] != '/')
8428 index3 = atoi(argv[j]);
8429 // negative refers to a recent vertex
8430 // zero means not specified
8431 // positive means an absolute vertex index
8433 index1 = numv - index1;
8435 index2 = numvt - index2;
8437 index3 = numvn - index3;
8438 vcurrent.nextindex = -1;
8439 vcurrent.textureindex = textureindex;
8440 vcurrent.submodelindex = submodelindex;
8441 if (obj_v && index1 >= 0 && index1 < numv)
8442 VectorCopy(obj_v + 3*index1, vcurrent.v);
8443 if (obj_vt && index2 >= 0 && index2 < numvt)
8444 Vector2Copy(obj_vt + 2*index2, vcurrent.vt);
8445 if (obj_vn && index3 >= 0 && index3 < numvn)
8446 VectorCopy(obj_vn + 3*index3, vcurrent.vn);
8447 if (numtriangles == 0)
8449 VectorCopy(vcurrent.v, mins);
8450 VectorCopy(vcurrent.v, maxs);
8454 mins[0] = min(mins[0], vcurrent.v[0]);
8455 mins[1] = min(mins[1], vcurrent.v[1]);
8456 mins[2] = min(mins[2], vcurrent.v[2]);
8457 maxs[0] = max(maxs[0], vcurrent.v[0]);
8458 maxs[1] = max(maxs[1], vcurrent.v[1]);
8459 maxs[2] = max(maxs[2], vcurrent.v[2]);
8465 if (maxtriangles <= numtriangles)
8467 maxtriangles = max(maxtriangles * 2, 32768);
8468 vertices = (objvertex_t*)Mem_Realloc(loadmodel->mempool, vertices, maxtriangles * sizeof(objvertex_t[3]));
8470 if(mod_obj_orientation.integer)
8472 vertices[numtriangles*3+0] = vfirst;
8473 vertices[numtriangles*3+1] = vprev;
8474 vertices[numtriangles*3+2] = vcurrent;
8478 vertices[numtriangles*3+0] = vfirst;
8479 vertices[numtriangles*3+2] = vprev;
8480 vertices[numtriangles*3+1] = vcurrent;
8487 else if (!strcmp(argv[0], "o") || !strcmp(argv[0], "g"))
8489 submodelindex = atof(argv[1]);
8490 loadmodel->brush.numsubmodels = max(submodelindex + 1, loadmodel->brush.numsubmodels);
8492 else if (!strcmp(argv[0], "usemtl"))
8494 for (i = 0;i < numtextures;i++)
8495 if (!strcmp(texturenames+i*MAX_QPATH, argv[1]))
8497 if (i < numtextures)
8501 if (maxtextures <= numtextures)
8503 maxtextures = max(maxtextures * 2, 256);
8504 texturenames = (char *)Mem_Realloc(loadmodel->mempool, texturenames, maxtextures * MAX_QPATH);
8506 textureindex = numtextures++;
8507 dp_strlcpy(texturenames + textureindex*MAX_QPATH, argv[1], MAX_QPATH);
8512 // now that we have the OBJ data loaded as-is, we can convert it
8514 // copy the model bounds, then enlarge the yaw and rotated bounds according to radius
8515 VectorCopy(mins, loadmodel->normalmins);
8516 VectorCopy(maxs, loadmodel->normalmaxs);
8517 dist = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
8518 modelyawradius = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
8519 modelyawradius = dist*dist+modelyawradius*modelyawradius;
8520 modelradius = max(fabs(loadmodel->normalmins[2]), fabs(loadmodel->normalmaxs[2]));
8521 modelradius = modelyawradius + modelradius * modelradius;
8522 modelyawradius = sqrt(modelyawradius);
8523 modelradius = sqrt(modelradius);
8524 loadmodel->yawmins[0] = loadmodel->yawmins[1] = -modelyawradius;
8525 loadmodel->yawmins[2] = loadmodel->normalmins[2];
8526 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius;
8527 loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
8528 loadmodel->rotatedmins[0] = loadmodel->rotatedmins[1] = loadmodel->rotatedmins[2] = -modelradius;
8529 loadmodel->rotatedmaxs[0] = loadmodel->rotatedmaxs[1] = loadmodel->rotatedmaxs[2] = modelradius;
8530 loadmodel->radius = modelradius;
8531 loadmodel->radius2 = modelradius * modelradius;
8533 // allocate storage for triangles
8534 loadmodel->surfmesh.data_element3i = (int *)Mem_Alloc(loadmodel->mempool, numtriangles * sizeof(int[3]));
8535 // allocate vertex hash structures to build an optimal vertex subset
8536 vertexhashsize = numtriangles*2;
8537 vertexhashtable = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int) * vertexhashsize);
8538 memset(vertexhashtable, 0xFF, sizeof(int) * vertexhashsize);
8539 vertexhashdata = (objvertex_t *)Mem_Alloc(loadmodel->mempool, sizeof(*vertexhashdata) * numtriangles*3);
8540 vertexhashcount = 0;
8542 // gather surface stats for assigning vertex/triangle ranges
8546 loadmodel->num_surfaces = 0;
8547 // allocate storage for the worst case number of surfaces, later we resize
8548 tempsurfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, numtextures * loadmodel->brush.numsubmodels * sizeof(msurface_t));
8549 submodelfirstsurface = (int *)Mem_Alloc(loadmodel->mempool, (loadmodel->brush.numsubmodels+1) * sizeof(int));
8550 tempsurface = tempsurfaces;
8551 for (submodelindex = 0;submodelindex < loadmodel->brush.numsubmodels;submodelindex++)
8553 submodelfirstsurface[submodelindex] = loadmodel->num_surfaces;
8554 for (textureindex = 0;textureindex < numtextures;textureindex++)
8556 for (vertexindex = 0;vertexindex < numtriangles*3;vertexindex++)
8558 thisvertex = vertices + vertexindex;
8559 if (thisvertex->submodelindex == submodelindex && thisvertex->textureindex == textureindex)
8562 // skip the surface creation if there are no triangles for it
8563 if (vertexindex == numtriangles*3)
8565 // create a surface for these vertices
8566 surfacevertices = 0;
8567 surfaceelements = 0;
8568 // we hack in a texture index in the surface to be fixed up later...
8569 tempsurface->texture = (texture_t *)((size_t)textureindex);
8570 // calculate bounds as we go
8571 VectorCopy(thisvertex->v, tempsurface->mins);
8572 VectorCopy(thisvertex->v, tempsurface->maxs);
8573 for (;vertexindex < numtriangles*3;vertexindex++)
8575 thisvertex = vertices + vertexindex;
8576 if (thisvertex->submodelindex != submodelindex)
8578 if (thisvertex->textureindex != textureindex)
8580 // add vertex to surface bounds
8581 tempsurface->mins[0] = min(tempsurface->mins[0], thisvertex->v[0]);
8582 tempsurface->mins[1] = min(tempsurface->mins[1], thisvertex->v[1]);
8583 tempsurface->mins[2] = min(tempsurface->mins[2], thisvertex->v[2]);
8584 tempsurface->maxs[0] = max(tempsurface->maxs[0], thisvertex->v[0]);
8585 tempsurface->maxs[1] = max(tempsurface->maxs[1], thisvertex->v[1]);
8586 tempsurface->maxs[2] = max(tempsurface->maxs[2], thisvertex->v[2]);
8587 // add the vertex if it is not found in the merged set, and
8588 // get its index (triangle element) for the surface
8589 vertexhashindex = (unsigned int)(thisvertex->v[0] * 3571 + thisvertex->v[0] * 1777 + thisvertex->v[0] * 457) % (unsigned int)vertexhashsize;
8590 for (i = vertexhashtable[vertexhashindex];i >= 0;i = vertexhashdata[i].nextindex)
8592 vdata = vertexhashdata + i;
8593 if (vdata->submodelindex == thisvertex->submodelindex && vdata->textureindex == thisvertex->textureindex && VectorCompare(thisvertex->v, vdata->v) && VectorCompare(thisvertex->vn, vdata->vn) && Vector2Compare(thisvertex->vt, vdata->vt))
8598 i = vertexhashcount++;
8599 vdata = vertexhashdata + i;
8600 *vdata = *thisvertex;
8601 vdata->nextindex = vertexhashtable[vertexhashindex];
8602 vertexhashtable[vertexhashindex] = i;
8605 loadmodel->surfmesh.data_element3i[elementindex++] = i;
8608 surfacetriangles = surfaceelements / 3;
8609 tempsurface->num_vertices = surfacevertices;
8610 tempsurface->num_triangles = surfacetriangles;
8611 tempsurface->num_firstvertex = firstvertex;
8612 tempsurface->num_firsttriangle = firsttriangle;
8613 firstvertex += tempsurface->num_vertices;
8614 firsttriangle += tempsurface->num_triangles;
8616 loadmodel->num_surfaces++;
8619 submodelfirstsurface[submodelindex] = loadmodel->num_surfaces;
8620 numvertices = firstvertex;
8621 loadmodel->data_surfaces = (msurface_t *)Mem_Realloc(loadmodel->mempool, tempsurfaces, loadmodel->num_surfaces * sizeof(msurface_t));
8622 tempsurfaces = NULL;
8624 // allocate storage for final mesh data
8625 loadmodel->num_textures = numtextures * loadmodel->numskins;
8626 loadmodel->num_texturesperskin = numtextures;
8627 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 *));
8628 loadmodel->brush.submodels = (model_t **)data;data += loadmodel->brush.numsubmodels * sizeof(model_t *);
8629 loadmodel->modelsurfaces_sorted = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
8630 loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
8631 loadmodel->surfmesh.num_vertices = numvertices;
8632 loadmodel->surfmesh.num_triangles = numtriangles;
8633 loadmodel->surfmesh.data_vertex3f = (float *)data;data += numvertices * sizeof(float[3]);
8634 loadmodel->surfmesh.data_svector3f = (float *)data;data += numvertices * sizeof(float[3]);
8635 loadmodel->surfmesh.data_tvector3f = (float *)data;data += numvertices * sizeof(float[3]);
8636 loadmodel->surfmesh.data_normal3f = (float *)data;data += numvertices * sizeof(float[3]);
8637 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += numvertices * sizeof(float[2]);
8639 if (loadmodel->surfmesh.num_vertices <= 65536) {
8640 loadmodel->surfmesh.data_element3s = (unsigned short *)data;data += loadmodel->surfmesh.num_triangles * sizeof(unsigned short[3]);
8643 for (j = 0;j < loadmodel->surfmesh.num_vertices;j++)
8645 VectorCopy(vertexhashdata[j].v, loadmodel->surfmesh.data_vertex3f + 3*j);
8646 VectorCopy(vertexhashdata[j].vn, loadmodel->surfmesh.data_normal3f + 3*j);
8647 Vector2Copy(vertexhashdata[j].vt, loadmodel->surfmesh.data_texcoordtexture2f + 2*j);
8650 // load the textures
8651 for (textureindex = 0;textureindex < numtextures;textureindex++)
8652 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + textureindex, skinfiles, texturenames + textureindex*MAX_QPATH, texturenames + textureindex*MAX_QPATH);
8653 Mod_FreeSkinFiles(skinfiles);
8655 // set the surface textures to their real values now that we loaded them...
8656 for (i = 0;i < loadmodel->num_surfaces;i++)
8657 loadmodel->data_surfaces[i].texture = loadmodel->data_textures + (size_t)loadmodel->data_surfaces[i].texture;
8661 Mem_Free(texturenames);
8665 Mem_Free(vertexhashtable);
8666 Mem_Free(vertexhashdata);
8668 // compute all the mesh information that was not loaded from the file
8669 if (loadmodel->surfmesh.data_element3s)
8670 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
8671 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
8672 Mod_ValidateElements(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_element3s, loadmodel->surfmesh.num_triangles, 0, loadmodel->surfmesh.num_vertices, __FILE__, __LINE__);
8673 // generate normals if the file did not have them
8674 if (!VectorLength2(loadmodel->surfmesh.data_normal3f))
8675 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);
8676 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);
8678 // if this is a worldmodel and has no BSP tree, create a fake one for the purpose
8679 loadmodel->brush.num_visleafs = 1;
8680 loadmodel->brush.num_leafs = 1;
8681 loadmodel->brush.num_nodes = 0;
8682 loadmodel->brush.num_leafsurfaces = loadmodel->num_surfaces;
8683 loadmodel->brush.data_leafs = (mleaf_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafs * sizeof(mleaf_t));
8684 loadmodel->brush.data_nodes = (mnode_t *)loadmodel->brush.data_leafs;
8685 loadmodel->brush.num_pvsclusters = 1;
8686 loadmodel->brush.num_pvsclusterbytes = 1;
8687 loadmodel->brush.data_pvsclusters = nobsp_pvs;
8688 //if (loadmodel->num_nodes) loadmodel->data_nodes = (mnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_nodes * sizeof(mnode_t));
8689 //loadmodel->data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->num_leafsurfaces * sizeof(int));
8690 loadmodel->brush.data_leafsurfaces = loadmodel->modelsurfaces_sorted;
8691 VectorCopy(loadmodel->normalmins, loadmodel->brush.data_leafs->mins);
8692 VectorCopy(loadmodel->normalmaxs, loadmodel->brush.data_leafs->maxs);
8693 loadmodel->brush.data_leafs->combinedsupercontents = 0; // FIXME?
8694 loadmodel->brush.data_leafs->clusterindex = 0;
8695 loadmodel->brush.data_leafs->areaindex = 0;
8696 loadmodel->brush.data_leafs->numleafsurfaces = loadmodel->brush.num_leafsurfaces;
8697 loadmodel->brush.data_leafs->firstleafsurface = loadmodel->brush.data_leafsurfaces;
8698 loadmodel->brush.data_leafs->numleafbrushes = 0;
8699 loadmodel->brush.data_leafs->firstleafbrush = NULL;
8700 loadmodel->brush.supportwateralpha = true;
8702 if (loadmodel->brush.numsubmodels)
8703 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
8706 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
8711 // duplicate the basic information
8712 dpsnprintf(name, sizeof(name), "*%i", i);
8713 mod = Mod_FindName(name, loadmodel->name);
8714 // copy the base model to this one
8716 // rename the clone back to its proper name
8717 dp_strlcpy(mod->name, name, sizeof(mod->name));
8718 mod->brush.parentmodel = loadmodel;
8719 // textures and memory belong to the main model
8720 mod->texturepool = NULL;
8721 mod->mempool = NULL;
8722 mod->brush.GetPVS = NULL;
8723 mod->brush.FatPVS = NULL;
8724 mod->brush.BoxTouchingPVS = NULL;
8725 mod->brush.BoxTouchingLeafPVS = NULL;
8726 mod->brush.BoxTouchingVisibleLeafs = NULL;
8727 mod->brush.FindBoxClusters = NULL;
8728 mod->brush.LightPoint = NULL;
8729 mod->brush.AmbientSoundLevelsForPoint = NULL;
8731 mod->brush.submodel = i;
8732 if (loadmodel->brush.submodels)
8733 loadmodel->brush.submodels[i] = mod;
8735 // make the model surface list (used by shadowing/lighting)
8736 mod->submodelsurfaces_start = submodelfirstsurface[i];
8737 mod->submodelsurfaces_end = submodelfirstsurface[i+1];
8738 mod->firstmodelbrush = 0;
8739 mod->nummodelbrushes = 0;
8741 VectorClear(mod->normalmins);
8742 VectorClear(mod->normalmaxs);
8744 for (j = mod->submodelsurfaces_start;j < mod->submodelsurfaces_end;j++)
8746 const msurface_t *surface = mod->data_surfaces + j;
8747 const float *v3f = mod->surfmesh.data_vertex3f + 3 * surface->num_firstvertex;
8749 if (!surface->num_vertices)
8754 VectorCopy(v3f, mod->normalmins);
8755 VectorCopy(v3f, mod->normalmaxs);
8757 for (k = 0;k < surface->num_vertices;k++, v3f += 3)
8759 mod->normalmins[0] = min(mod->normalmins[0], v3f[0]);
8760 mod->normalmins[1] = min(mod->normalmins[1], v3f[1]);
8761 mod->normalmins[2] = min(mod->normalmins[2], v3f[2]);
8762 mod->normalmaxs[0] = max(mod->normalmaxs[0], v3f[0]);
8763 mod->normalmaxs[1] = max(mod->normalmaxs[1], v3f[1]);
8764 mod->normalmaxs[2] = max(mod->normalmaxs[2], v3f[2]);
8767 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
8768 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
8769 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
8770 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
8771 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
8772 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
8773 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
8774 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
8775 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
8776 mod->yawmins[2] = mod->normalmins[2];
8777 mod->yawmaxs[2] = mod->normalmaxs[2];
8778 mod->radius = modelradius;
8779 mod->radius2 = modelradius * modelradius;
8781 Mod_SetDrawSkyAndWater(mod);
8783 Mod_MakeCollisionBIH(mod, true, &mod->collision_bih);
8784 mod->render_bih = mod->collision_bih;
8786 // generate VBOs and other shared data before cloning submodels
8791 Mem_Free(submodelfirstsurface);
8793 // make the model surface list (used by shadowing/lighting)
8794 Mod_MakeSortedSurfaces(loadmodel);
8796 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);