2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
29 //cvar_t r_subdivide_size = {CF_CLIENT | CF_ARCHIVE, "r_subdivide_size", "128", "how large water polygons should be (smaller values produce more polygons which give better warping effects)"};
30 cvar_t mod_bsp_portalize = {CF_CLIENT | CF_SERVER, "mod_bsp_portalize", "1", "enables portal generation from BSP tree (may take several seconds per map), used by r_drawportals, r_useportalculling, r_shadow_realtime_world_compileportalculling, sv_cullentities_portal"};
31 cvar_t r_novis = {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)"};
33 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)"};
34 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)"};
35 cvar_t r_subdivisions_maxtess = {CF_CLIENT, "r_subdivisions_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
36 cvar_t r_subdivisions_maxvertices = {CF_CLIENT, "r_subdivisions_maxvertices", "65536", "maximum vertices allowed per subdivided curve"};
37 cvar_t r_subdivisions_collision_tolerance = {CF_CLIENT, "r_subdivisions_collision_tolerance", "15", "maximum error tolerance on curve subdivision for collision purposes (usually a larger error tolerance than for rendering)"};
38 cvar_t r_subdivisions_collision_mintess = {CF_CLIENT, "r_subdivisions_collision_mintess", "0", "minimum number of subdivisions (values above 0 will smooth curves that don't need it)"};
39 cvar_t r_subdivisions_collision_maxtess = {CF_CLIENT, "r_subdivisions_collision_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
40 cvar_t r_subdivisions_collision_maxvertices = {CF_CLIENT, "r_subdivisions_collision_maxvertices", "4225", "maximum vertices allowed per subdivided curve"};
41 cvar_t r_trippy = {CF_CLIENT, "r_trippy", "0", "easter egg"};
42 cvar_t r_fxaa = {CF_CLIENT | CF_ARCHIVE, "r_fxaa", "0", "fast approximate anti aliasing"};
43 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"};
44 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)"};
45 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"};
46 cvar_t mod_q3bsp_curves_collisions = {CF_CLIENT | CF_SERVER, "mod_q3bsp_curves_collisions", "1", "enables collisions with curves (SLOW)"};
47 cvar_t mod_q3bsp_curves_collisions_stride = {CF_CLIENT | CF_SERVER, "mod_q3bsp_curves_collisions_stride", "16", "collisions against curves: optimize performance by doing a combined collision check for this triangle amount first (-1 avoids any box tests)"};
48 cvar_t mod_q3bsp_curves_stride = {CF_CLIENT | CF_SERVER, "mod_q3bsp_curves_stride", "16", "particle effect collisions against curves: optimize performance by doing a combined collision check for this triangle amount first (-1 avoids any box tests)"};
49 cvar_t mod_q3bsp_optimizedtraceline = {CF_CLIENT | CF_SERVER, "mod_q3bsp_optimizedtraceline", "1", "whether to use optimized traceline code for line traces (as opposed to tracebox code)"};
50 cvar_t mod_q3bsp_debugtracebrush = {CF_CLIENT | CF_SERVER, "mod_q3bsp_debugtracebrush", "0", "selects different tracebrush bsp recursion algorithms (for debugging purposes only)"};
51 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, ..."};
52 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)"};
53 cvar_t mod_q3bsp_tracelineofsight_brushes = {CF_CLIENT | CF_SERVER, "mod_q3bsp_tracelineofsight_brushes", "0", "enables culling of entities behind detail brushes, curves, etc"};
54 cvar_t mod_q3bsp_sRGBlightmaps = {CF_CLIENT, "mod_q3bsp_sRGBlightmaps", "0", "treat lightmaps from Q3 maps as sRGB when vid_sRGB is active"};
55 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"};
56 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)"};
57 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)"};
58 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"};
59 cvar_t mod_q3shader_default_offsetmapping_scale = {CF_CLIENT | CF_ARCHIVE, "mod_q3shader_default_offsetmapping_scale", "1", "default scale used for offsetmapping"};
60 cvar_t mod_q3shader_default_offsetmapping_bias = {CF_CLIENT | CF_ARCHIVE, "mod_q3shader_default_offsetmapping_bias", "0", "default bias used for offsetmapping"};
61 cvar_t mod_q3shader_default_polygonfactor = {CF_CLIENT, "mod_q3shader_default_polygonfactor", "0", "biases depth values of 'polygonoffset' shaders to prevent z-fighting artifacts"};
62 cvar_t mod_q3shader_default_polygonoffset = {CF_CLIENT, "mod_q3shader_default_polygonoffset", "-2", "biases depth values of 'polygonoffset' shaders to prevent z-fighting artifacts"};
63 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"};
64 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"};
65 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"};
67 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)"};
68 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"};
70 static texture_t mod_q1bsp_texture_solid;
71 static texture_t mod_q1bsp_texture_sky;
72 static texture_t mod_q1bsp_texture_lava;
73 static texture_t mod_q1bsp_texture_slime;
74 static texture_t mod_q1bsp_texture_water;
76 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);
78 void Mod_BrushInit(void)
80 // Cvar_RegisterVariable(&r_subdivide_size);
81 Cvar_RegisterVariable(&mod_bsp_portalize);
82 Cvar_RegisterVariable(&r_novis);
83 Cvar_RegisterVariable(&r_nosurftextures);
84 Cvar_RegisterVariable(&r_subdivisions_tolerance);
85 Cvar_RegisterVariable(&r_subdivisions_mintess);
86 Cvar_RegisterVariable(&r_subdivisions_maxtess);
87 Cvar_RegisterVariable(&r_subdivisions_maxvertices);
88 Cvar_RegisterVariable(&r_subdivisions_collision_tolerance);
89 Cvar_RegisterVariable(&r_subdivisions_collision_mintess);
90 Cvar_RegisterVariable(&r_subdivisions_collision_maxtess);
91 Cvar_RegisterVariable(&r_subdivisions_collision_maxvertices);
92 Cvar_RegisterVariable(&r_trippy);
93 Cvar_RegisterVariable(&r_fxaa);
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_curves_collisions_stride);
99 Cvar_RegisterVariable(&mod_q3bsp_curves_stride);
100 Cvar_RegisterVariable(&mod_q3bsp_optimizedtraceline);
101 Cvar_RegisterVariable(&mod_q3bsp_debugtracebrush);
102 Cvar_RegisterVariable(&mod_q3bsp_lightmapmergepower);
103 Cvar_RegisterVariable(&mod_q3bsp_nolightmaps);
104 Cvar_RegisterVariable(&mod_q3bsp_sRGBlightmaps);
105 Cvar_RegisterVariable(&mod_q3bsp_lightgrid_texture);
106 Cvar_RegisterVariable(&mod_q3bsp_lightgrid_world_surfaces);
107 Cvar_RegisterVariable(&mod_q3bsp_lightgrid_bsp_surfaces);
108 Cvar_RegisterVariable(&mod_q3bsp_tracelineofsight_brushes);
109 Cvar_RegisterVariable(&mod_q3shader_default_offsetmapping);
110 Cvar_RegisterVariable(&mod_q3shader_default_offsetmapping_scale);
111 Cvar_RegisterVariable(&mod_q3shader_default_offsetmapping_bias);
112 Cvar_RegisterVariable(&mod_q3shader_default_polygonfactor);
113 Cvar_RegisterVariable(&mod_q3shader_default_polygonoffset);
114 Cvar_RegisterVariable(&mod_q3shader_default_refractive_index);
115 Cvar_RegisterVariable(&mod_q3shader_force_addalpha);
116 Cvar_RegisterVariable(&mod_q3shader_force_terrain_alphaflag);
117 Cvar_RegisterVariable(&mod_q1bsp_polygoncollisions);
118 Cvar_RegisterVariable(&mod_recalculatenodeboxes);
120 // these games were made for older DP engines and are no longer
121 // maintained; use this hack to show their textures properly
122 if(gamemode == GAME_NEXUIZ)
123 Cvar_SetQuick(&mod_q3shader_force_addalpha, "1");
125 memset(&mod_q1bsp_texture_solid, 0, sizeof(mod_q1bsp_texture_solid));
126 strlcpy(mod_q1bsp_texture_solid.name, "solid" , sizeof(mod_q1bsp_texture_solid.name));
127 mod_q1bsp_texture_solid.surfaceflags = 0;
128 mod_q1bsp_texture_solid.supercontents = SUPERCONTENTS_SOLID;
130 mod_q1bsp_texture_sky = mod_q1bsp_texture_solid;
131 strlcpy(mod_q1bsp_texture_sky.name, "sky", sizeof(mod_q1bsp_texture_sky.name));
132 mod_q1bsp_texture_sky.surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
133 mod_q1bsp_texture_sky.supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
135 mod_q1bsp_texture_lava = mod_q1bsp_texture_solid;
136 strlcpy(mod_q1bsp_texture_lava.name, "*lava", sizeof(mod_q1bsp_texture_lava.name));
137 mod_q1bsp_texture_lava.surfaceflags = Q3SURFACEFLAG_NOMARKS;
138 mod_q1bsp_texture_lava.supercontents = SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
140 mod_q1bsp_texture_slime = mod_q1bsp_texture_solid;
141 strlcpy(mod_q1bsp_texture_slime.name, "*slime", sizeof(mod_q1bsp_texture_slime.name));
142 mod_q1bsp_texture_slime.surfaceflags = Q3SURFACEFLAG_NOMARKS;
143 mod_q1bsp_texture_slime.supercontents = SUPERCONTENTS_SLIME;
145 mod_q1bsp_texture_water = mod_q1bsp_texture_solid;
146 strlcpy(mod_q1bsp_texture_water.name, "*water", sizeof(mod_q1bsp_texture_water.name));
147 mod_q1bsp_texture_water.surfaceflags = Q3SURFACEFLAG_NOMARKS;
148 mod_q1bsp_texture_water.supercontents = SUPERCONTENTS_WATER;
151 static mleaf_t *Mod_BSP_PointInLeaf(model_t *model, const vec3_t p)
158 // LadyHavoc: modified to start at first clip node,
159 // in other words: first node of the (sub)model
160 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
162 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
164 return (mleaf_t *)node;
167 static void Mod_Q1BSP_AmbientSoundLevelsForPoint(model_t *model, const vec3_t p, unsigned char *out, int outsize)
171 leaf = Mod_BSP_PointInLeaf(model, p);
174 i = min(outsize, (int)sizeof(leaf->ambient_sound_level));
177 memcpy(out, leaf->ambient_sound_level, i);
183 memset(out, 0, outsize);
186 static int Mod_BSP_FindBoxClusters(model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
189 int nodestackindex = 0;
190 mnode_t *node, *nodestack[1024];
191 if (!model->brush.num_pvsclusters)
193 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
199 // node - recurse down the BSP tree
200 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
204 return -1; // ERROR: NAN bounding box!
205 // box is on one side of plane, take that path
206 node = node->children[sides-1];
210 // box crosses plane, take one path and remember the other
211 if (nodestackindex < 1024)
212 nodestack[nodestackindex++] = node->children[0];
213 node = node->children[1];
219 // leaf - add clusterindex to list
220 if (numclusters < maxclusters)
221 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
225 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
229 if (nodestackindex < 1024)
230 nodestack[nodestackindex++] = node->children[0];
231 node = node->children[1];
236 // leaf - add clusterindex to list
237 if (numclusters < maxclusters)
238 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
243 // try another path we didn't take earlier
244 if (nodestackindex == 0)
246 node = nodestack[--nodestackindex];
248 // return number of clusters found (even if more than the maxclusters)
252 static int Mod_BSP_BoxTouchingPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
254 int nodestackindex = 0;
255 mnode_t *node, *nodestack[1024];
256 if (!model->brush.num_pvsclusters)
258 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
264 // node - recurse down the BSP tree
265 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
269 return -1; // ERROR: NAN bounding box!
270 // box is on one side of plane, take that path
271 node = node->children[sides-1];
275 // box crosses plane, take one path and remember the other
276 if (nodestackindex < 1024)
277 nodestack[nodestackindex++] = node->children[0];
278 node = node->children[1];
284 // leaf - check cluster bit
285 int clusterindex = ((mleaf_t *)node)->clusterindex;
286 if (CHECKPVSBIT(pvs, clusterindex))
288 // it is visible, return immediately with the news
293 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
297 if (nodestackindex < 1024)
298 nodestack[nodestackindex++] = node->children[0];
299 node = node->children[1];
304 // leaf - check cluster bit
305 int clusterindex = ((mleaf_t *)node)->clusterindex;
306 if (CHECKPVSBIT(pvs, clusterindex))
308 // it is visible, return immediately with the news
314 // nothing to see here, try another path we didn't take earlier
315 if (nodestackindex == 0)
317 node = nodestack[--nodestackindex];
323 static int Mod_BSP_BoxTouchingLeafPVS(model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
325 int nodestackindex = 0;
326 mnode_t *node, *nodestack[1024];
327 if (!model->brush.num_leafs)
329 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
335 // node - recurse down the BSP tree
336 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
340 return -1; // ERROR: NAN bounding box!
341 // box is on one side of plane, take that path
342 node = node->children[sides-1];
346 // box crosses plane, take one path and remember the other
347 if (nodestackindex < 1024)
348 nodestack[nodestackindex++] = node->children[0];
349 node = node->children[1];
355 // leaf - check cluster bit
356 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
357 if (CHECKPVSBIT(pvs, clusterindex))
359 // it is visible, return immediately with the news
364 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
368 if (nodestackindex < 1024)
369 nodestack[nodestackindex++] = node->children[0];
370 node = node->children[1];
375 // leaf - check cluster bit
376 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
377 if (CHECKPVSBIT(pvs, clusterindex))
379 // it is visible, return immediately with the news
385 // nothing to see here, try another path we didn't take earlier
386 if (nodestackindex == 0)
388 node = nodestack[--nodestackindex];
394 static int Mod_BSP_BoxTouchingVisibleLeafs(model_t *model, const unsigned char *visibleleafs, const vec3_t mins, const vec3_t maxs)
396 int nodestackindex = 0;
397 mnode_t *node, *nodestack[1024];
398 if (!model->brush.num_leafs)
400 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
406 // node - recurse down the BSP tree
407 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
411 return -1; // ERROR: NAN bounding box!
412 // box is on one side of plane, take that path
413 node = node->children[sides-1];
417 // box crosses plane, take one path and remember the other
418 if (nodestackindex < 1024)
419 nodestack[nodestackindex++] = node->children[0];
420 node = node->children[1];
426 // leaf - check if it is visible
427 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
429 // it is visible, return immediately with the news
434 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
438 if (nodestackindex < 1024)
439 nodestack[nodestackindex++] = node->children[0];
440 node = node->children[1];
445 // leaf - check if it is visible
446 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
448 // it is visible, return immediately with the news
454 // nothing to see here, try another path we didn't take earlier
455 if (nodestackindex == 0)
457 node = nodestack[--nodestackindex];
463 typedef struct findnonsolidlocationinfo_s
466 vec3_t absmin, absmax;
472 findnonsolidlocationinfo_t;
474 static void Mod_BSP_FindNonSolidLocation_r_Triangle(findnonsolidlocationinfo_t *info, msurface_t *surface, int k)
477 float dist, f, vert[3][3], edge[3][3], facenormal[3], edgenormal[3][3], point[3];
479 tri = (info->model->surfmesh.data_element3i + 3 * surface->num_firsttriangle) + k * 3;
480 VectorCopy((info->model->surfmesh.data_vertex3f + tri[0] * 3), vert[0]);
481 VectorCopy((info->model->surfmesh.data_vertex3f + tri[1] * 3), vert[1]);
482 VectorCopy((info->model->surfmesh.data_vertex3f + tri[2] * 3), vert[2]);
483 VectorSubtract(vert[1], vert[0], edge[0]);
484 VectorSubtract(vert[2], vert[1], edge[1]);
485 CrossProduct(edge[1], edge[0], facenormal);
486 if (facenormal[0] || facenormal[1] || facenormal[2])
488 VectorNormalize(facenormal);
489 f = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
490 if (f <= info->bestdist && f >= -info->bestdist)
492 VectorSubtract(vert[0], vert[2], edge[2]);
493 VectorNormalize(edge[0]);
494 VectorNormalize(edge[1]);
495 VectorNormalize(edge[2]);
496 CrossProduct(facenormal, edge[0], edgenormal[0]);
497 CrossProduct(facenormal, edge[1], edgenormal[1]);
498 CrossProduct(facenormal, edge[2], edgenormal[2]);
500 if (DotProduct(info->center, edgenormal[0]) < DotProduct(vert[0], edgenormal[0])
501 && DotProduct(info->center, edgenormal[1]) < DotProduct(vert[1], edgenormal[1])
502 && DotProduct(info->center, edgenormal[2]) < DotProduct(vert[2], edgenormal[2]))
504 // we got lucky, the center is within the face
505 dist = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
509 if (info->bestdist > dist)
511 info->bestdist = dist;
512 VectorScale(facenormal, (info->radius - -dist), info->nudge);
517 if (info->bestdist > dist)
519 info->bestdist = dist;
520 VectorScale(facenormal, (info->radius - dist), info->nudge);
526 // check which edge or vertex the center is nearest
527 for (i = 0;i < 3;i++)
529 f = DotProduct(info->center, edge[i]);
530 if (f >= DotProduct(vert[0], edge[i])
531 && f <= DotProduct(vert[1], edge[i]))
534 VectorMA(info->center, -f, edge[i], point);
535 dist = sqrt(DotProduct(point, point));
536 if (info->bestdist > dist)
538 info->bestdist = dist;
539 VectorScale(point, (info->radius / dist), info->nudge);
541 // skip both vertex checks
542 // (both are further away than this edge)
547 // not on edge, check first vertex of edge
548 VectorSubtract(info->center, vert[i], point);
549 dist = sqrt(DotProduct(point, point));
550 if (info->bestdist > dist)
552 info->bestdist = dist;
553 VectorScale(point, (info->radius / dist), info->nudge);
562 static void Mod_BSP_FindNonSolidLocation_r_Leaf(findnonsolidlocationinfo_t *info, mleaf_t *leaf)
564 int surfacenum, k, *mark;
566 for (surfacenum = 0, mark = leaf->firstleafsurface;surfacenum < leaf->numleafsurfaces;surfacenum++, mark++)
568 surface = info->model->data_surfaces + *mark;
569 if(!surface->texture)
571 if (surface->texture->supercontents & SUPERCONTENTS_SOLID)
573 for (k = 0;k < surface->num_triangles;k++)
575 Mod_BSP_FindNonSolidLocation_r_Triangle(info, surface, k);
581 static void Mod_BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, mnode_t *node)
585 float f = PlaneDiff(info->center, node->plane);
586 if (f >= -info->bestdist)
587 Mod_BSP_FindNonSolidLocation_r(info, node->children[0]);
588 if (f <= info->bestdist)
589 Mod_BSP_FindNonSolidLocation_r(info, node->children[1]);
593 if (((mleaf_t *)node)->numleafsurfaces)
594 Mod_BSP_FindNonSolidLocation_r_Leaf(info, (mleaf_t *)node);
598 static void Mod_BSP_FindNonSolidLocation(model_t *model, const vec3_t in, vec3_t out, float radius)
601 findnonsolidlocationinfo_t info;
607 VectorCopy(in, info.center);
608 info.radius = radius;
613 VectorClear(info.nudge);
614 info.bestdist = radius;
615 VectorCopy(info.center, info.absmin);
616 VectorCopy(info.center, info.absmax);
617 info.absmin[0] -= info.radius + 1;
618 info.absmin[1] -= info.radius + 1;
619 info.absmin[2] -= info.radius + 1;
620 info.absmax[0] += info.radius + 1;
621 info.absmax[1] += info.radius + 1;
622 info.absmax[2] += info.radius + 1;
623 Mod_BSP_FindNonSolidLocation_r(&info, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
624 VectorAdd(info.center, info.nudge, info.center);
626 while (info.bestdist < radius && ++i < 10);
627 VectorCopy(info.center, out);
630 int Mod_Q1BSP_SuperContentsFromNativeContents(int nativecontents)
632 switch(nativecontents)
637 return SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
639 return SUPERCONTENTS_WATER;
641 return SUPERCONTENTS_SLIME;
643 return SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
645 return SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP | SUPERCONTENTS_OPAQUE; // to match behaviour of Q3 maps, let sky count as opaque
650 int Mod_Q1BSP_NativeContentsFromSuperContents(int supercontents)
652 if (supercontents & (SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY))
653 return CONTENTS_SOLID;
654 if (supercontents & SUPERCONTENTS_SKY)
656 if (supercontents & SUPERCONTENTS_LAVA)
657 return CONTENTS_LAVA;
658 if (supercontents & SUPERCONTENTS_SLIME)
659 return CONTENTS_SLIME;
660 if (supercontents & SUPERCONTENTS_WATER)
661 return CONTENTS_WATER;
662 return CONTENTS_EMPTY;
665 typedef struct RecursiveHullCheckTraceInfo_s
667 // the hull we're tracing through
670 // the trace structure to fill in
673 // start, end, and end - start (in model space)
678 RecursiveHullCheckTraceInfo_t;
680 // 1/32 epsilon to keep floating point happy
681 #define DIST_EPSILON (0.03125)
683 #define HULLCHECKSTATE_EMPTY 0
684 #define HULLCHECKSTATE_SOLID 1
685 #define HULLCHECKSTATE_DONE 2
687 static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int num, double p1f, double p2f, double p1[3], double p2[3])
689 // status variables, these don't need to be saved on the stack when
690 // recursing... but are because this should be thread-safe
691 // (note: tracing against a bbox is not thread-safe, yet)
696 // variables that need to be stored on the stack when recursing
701 // keep looping until we hit a leaf
704 // find the point distances
705 node = t->hull->clipnodes + num;
706 plane = t->hull->planes + node->planenum;
708 // axial planes can be calculated more quickly without the DotProduct
711 t1 = p1[plane->type] - plane->dist;
712 t2 = p2[plane->type] - plane->dist;
716 t1 = DotProduct (plane->normal, p1) - plane->dist;
717 t2 = DotProduct (plane->normal, p2) - plane->dist;
720 // negative plane distances indicate children[1] (behind plane)
724 // if the line starts and ends on the same side of the plane, recurse
725 // into that child instantly
726 if (p1side == p2side)
728 #if COLLISIONPARANOID >= 3
734 // loop back and process the start child
735 num = node->children[p1side];
739 // find the midpoint where the line crosses the plane, use the
740 // original line for best accuracy
741 #if COLLISIONPARANOID >= 3
746 t1 = t->start[plane->type] - plane->dist;
747 t2 = t->end[plane->type] - plane->dist;
751 t1 = DotProduct (plane->normal, t->start) - plane->dist;
752 t2 = DotProduct (plane->normal, t->end) - plane->dist;
754 midf = t1 / (t1 - t2);
755 midf = bound(p1f, midf, p2f);
756 VectorMA(t->start, midf, t->dist, mid);
758 // we now have a mid point, essentially splitting the line into
759 // the segments in the near child and the far child, we can now
760 // recurse those in order and get their results
762 // recurse both sides, front side first
763 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[p1side], p1f, midf, p1, mid);
764 // if this side is not empty, return what it is (solid or done)
765 if (ret != HULLCHECKSTATE_EMPTY)
768 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[p2side], midf, p2f, mid, p2);
769 // if other side is not solid, return what it is (empty or done)
770 if (ret != HULLCHECKSTATE_SOLID)
773 // front is air and back is solid, this is the impact point...
775 // copy the plane information, flipping it if needed
778 t->trace->plane.dist = -plane->dist;
779 VectorNegate (plane->normal, t->trace->plane.normal);
783 t->trace->plane.dist = plane->dist;
784 VectorCopy (plane->normal, t->trace->plane.normal);
787 // calculate the return fraction which is nudged off the surface a bit
788 t1 = DotProduct(t->trace->plane.normal, t->start) - t->trace->plane.dist;
789 t2 = DotProduct(t->trace->plane.normal, t->end) - t->trace->plane.dist;
790 midf = (t1 - collision_impactnudge.value) / (t1 - t2);
791 t->trace->fraction = bound(0, midf, 1);
793 #if COLLISIONPARANOID >= 3
796 return HULLCHECKSTATE_DONE;
800 // we reached a leaf contents
803 num = Mod_Q1BSP_SuperContentsFromNativeContents(num);
804 if (!t->trace->startfound)
806 t->trace->startfound = true;
807 t->trace->startsupercontents |= num;
809 if (num & SUPERCONTENTS_LIQUIDSMASK)
810 t->trace->inwater = true;
812 t->trace->inopen = true;
813 if (num & SUPERCONTENTS_SOLID)
814 t->trace->hittexture = &mod_q1bsp_texture_solid;
815 else if (num & SUPERCONTENTS_SKY)
816 t->trace->hittexture = &mod_q1bsp_texture_sky;
817 else if (num & SUPERCONTENTS_LAVA)
818 t->trace->hittexture = &mod_q1bsp_texture_lava;
819 else if (num & SUPERCONTENTS_SLIME)
820 t->trace->hittexture = &mod_q1bsp_texture_slime;
822 t->trace->hittexture = &mod_q1bsp_texture_water;
823 t->trace->hitq3surfaceflags = t->trace->hittexture->surfaceflags;
824 t->trace->hitsupercontents = num;
825 if (num & t->trace->hitsupercontentsmask)
827 // if the first leaf is solid, set startsolid
828 if (t->trace->allsolid)
829 t->trace->startsolid = true;
830 #if COLLISIONPARANOID >= 3
833 return HULLCHECKSTATE_SOLID;
837 t->trace->allsolid = false;
838 #if COLLISIONPARANOID >= 3
841 return HULLCHECKSTATE_EMPTY;
845 //#if COLLISIONPARANOID < 2
846 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
849 mclipnode_t *nodes = t->hull->clipnodes;
850 mplane_t *planes = t->hull->planes;
852 VectorCopy(t->start, point);
855 plane = planes + nodes[num].planenum;
856 num = nodes[num].children[(plane->type < 3 ? point[plane->type] : DotProduct(plane->normal, point)) < plane->dist];
858 num = Mod_Q1BSP_SuperContentsFromNativeContents(num);
859 t->trace->startsupercontents |= num;
860 if (num & SUPERCONTENTS_LIQUIDSMASK)
861 t->trace->inwater = true;
863 t->trace->inopen = true;
864 if (num & t->trace->hitsupercontentsmask)
866 t->trace->allsolid = t->trace->startsolid = true;
867 return HULLCHECKSTATE_SOLID;
871 t->trace->allsolid = t->trace->startsolid = false;
872 return HULLCHECKSTATE_EMPTY;
877 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)
879 RecursiveHullCheckTraceInfo_t rhc;
881 memset(&rhc, 0, sizeof(rhc));
882 memset(trace, 0, sizeof(trace_t));
884 rhc.trace->fraction = 1;
885 rhc.trace->allsolid = true;
886 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
887 VectorCopy(start, rhc.start);
888 VectorCopy(start, rhc.end);
889 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
892 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);
894 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)
896 RecursiveHullCheckTraceInfo_t rhc;
898 if (VectorCompare(start, end))
900 Mod_Q1BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
904 // 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...
905 if (sv_gameplayfix_q1bsptracelinereportstexture.integer)
907 Mod_Q1BSP_TraceLineAgainstSurfaces(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
911 memset(&rhc, 0, sizeof(rhc));
912 memset(trace, 0, sizeof(trace_t));
914 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
915 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
916 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
917 rhc.trace->fraction = 1;
918 rhc.trace->allsolid = true;
919 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
920 VectorCopy(start, rhc.start);
921 VectorCopy(end, rhc.end);
922 VectorSubtract(rhc.end, rhc.start, rhc.dist);
923 #if COLLISIONPARANOID >= 2
924 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]);
925 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
930 VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
931 memset(&testtrace, 0, sizeof(trace_t));
932 rhc.trace = &testtrace;
933 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
934 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
935 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
936 rhc.trace->fraction = 1;
937 rhc.trace->allsolid = true;
938 VectorCopy(test, rhc.start);
939 VectorCopy(test, rhc.end);
940 VectorClear(rhc.dist);
941 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
942 //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
943 if (!trace->startsolid && testtrace.startsolid)
944 Con_Printf(" - ended in solid!\n");
948 if (VectorLength2(rhc.dist))
949 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
951 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
955 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)
957 // this function currently only supports same size start and end
959 RecursiveHullCheckTraceInfo_t rhc;
961 if (VectorCompare(boxmins, boxmaxs))
963 if (VectorCompare(start, end))
964 Mod_Q1BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
966 Mod_Q1BSP_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
970 memset(&rhc, 0, sizeof(rhc));
971 memset(trace, 0, sizeof(trace_t));
973 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
974 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
975 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
976 rhc.trace->fraction = 1;
977 rhc.trace->allsolid = true;
978 VectorSubtract(boxmaxs, boxmins, boxsize);
980 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
981 else if (model->brush.ishlbsp)
983 // LadyHavoc: this has to have a minor tolerance (the .1) because of
984 // minor float precision errors from the box being transformed around
985 if (boxsize[0] < 32.1)
987 if (boxsize[2] < 54) // pick the nearest of 36 or 72
988 rhc.hull = &model->brushq1.hulls[3]; // 32x32x36
990 rhc.hull = &model->brushq1.hulls[1]; // 32x32x72
993 rhc.hull = &model->brushq1.hulls[2]; // 64x64x64
997 // LadyHavoc: this has to have a minor tolerance (the .1) because of
998 // minor float precision errors from the box being transformed around
999 if (boxsize[0] < 32.1)
1000 rhc.hull = &model->brushq1.hulls[1]; // 32x32x56
1002 rhc.hull = &model->brushq1.hulls[2]; // 64x64x88
1004 VectorMAMAM(1, start, 1, boxmins, -1, rhc.hull->clip_mins, rhc.start);
1005 VectorMAMAM(1, end, 1, boxmins, -1, rhc.hull->clip_mins, rhc.end);
1006 VectorSubtract(rhc.end, rhc.start, rhc.dist);
1007 #if COLLISIONPARANOID >= 2
1008 Con_Printf("t(%f %f %f,%f %f %f,%i %f %f %f)", rhc.start[0], rhc.start[1], rhc.start[2], rhc.end[0], rhc.end[1], rhc.end[2], rhc.hull - model->brushq1.hulls, rhc.hull->clip_mins[0], rhc.hull->clip_mins[1], rhc.hull->clip_mins[2]);
1009 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
1014 VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
1015 memset(&testtrace, 0, sizeof(trace_t));
1016 rhc.trace = &testtrace;
1017 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
1018 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
1019 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
1020 rhc.trace->fraction = 1;
1021 rhc.trace->allsolid = true;
1022 VectorCopy(test, rhc.start);
1023 VectorCopy(test, rhc.end);
1024 VectorClear(rhc.dist);
1025 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
1026 //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
1027 if (!trace->startsolid && testtrace.startsolid)
1028 Con_Printf(" - ended in solid!\n");
1032 if (VectorLength2(rhc.dist))
1033 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
1035 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
1039 static int Mod_Q1BSP_PointSuperContents(struct model_s *model, int frame, const vec3_t point)
1041 int num = model->brushq1.hulls[0].firstclipnode;
1043 mclipnode_t *nodes = model->brushq1.hulls[0].clipnodes;
1044 mplane_t *planes = model->brushq1.hulls[0].planes;
1047 plane = planes + nodes[num].planenum;
1048 num = nodes[num].children[(plane->type < 3 ? point[plane->type] : DotProduct(plane->normal, point)) < plane->dist];
1050 return Mod_Q1BSP_SuperContentsFromNativeContents(num);
1053 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)
1057 colplanef_t cbox_planes[6];
1059 cbox.hasaabbplanes = true;
1060 cbox.supercontents = boxsupercontents;
1063 cbox.numtriangles = 0;
1064 cbox.planes = cbox_planes;
1066 cbox.elements = NULL;
1074 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];
1075 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];
1076 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];
1077 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];
1078 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];
1079 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];
1080 cbox_planes[0].q3surfaceflags = boxq3surfaceflags;cbox_planes[0].texture = boxtexture;
1081 cbox_planes[1].q3surfaceflags = boxq3surfaceflags;cbox_planes[1].texture = boxtexture;
1082 cbox_planes[2].q3surfaceflags = boxq3surfaceflags;cbox_planes[2].texture = boxtexture;
1083 cbox_planes[3].q3surfaceflags = boxq3surfaceflags;cbox_planes[3].texture = boxtexture;
1084 cbox_planes[4].q3surfaceflags = boxq3surfaceflags;cbox_planes[4].texture = boxtexture;
1085 cbox_planes[5].q3surfaceflags = boxq3surfaceflags;cbox_planes[5].texture = boxtexture;
1086 memset(trace, 0, sizeof(trace_t));
1087 trace->hitsupercontentsmask = hitsupercontentsmask;
1088 trace->skipsupercontentsmask = skipsupercontentsmask;
1089 trace->skipmaterialflagsmask = skipmaterialflagsmask;
1090 trace->fraction = 1;
1091 Collision_TraceLineBrushFloat(trace, start, end, &cbox, &cbox);
1093 RecursiveHullCheckTraceInfo_t rhc;
1094 static hull_t box_hull;
1095 static mclipnode_t box_clipnodes[6];
1096 static mplane_t box_planes[6];
1097 // fill in a default trace
1098 memset(&rhc, 0, sizeof(rhc));
1099 memset(trace, 0, sizeof(trace_t));
1100 //To keep everything totally uniform, bounding boxes are turned into small
1101 //BSP trees instead of being compared directly.
1102 // create a temp hull from bounding box sizes
1103 box_planes[0].dist = cmaxs[0] - mins[0];
1104 box_planes[1].dist = cmins[0] - maxs[0];
1105 box_planes[2].dist = cmaxs[1] - mins[1];
1106 box_planes[3].dist = cmins[1] - maxs[1];
1107 box_planes[4].dist = cmaxs[2] - mins[2];
1108 box_planes[5].dist = cmins[2] - maxs[2];
1109 #if COLLISIONPARANOID >= 3
1110 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]);
1113 if (box_hull.clipnodes == NULL)
1117 //Set up the planes and clipnodes so that the six floats of a bounding box
1118 //can just be stored out and get a proper hull_t structure.
1120 box_hull.clipnodes = box_clipnodes;
1121 box_hull.planes = box_planes;
1122 box_hull.firstclipnode = 0;
1123 box_hull.lastclipnode = 5;
1125 for (i = 0;i < 6;i++)
1127 box_clipnodes[i].planenum = i;
1131 box_clipnodes[i].children[side] = CONTENTS_EMPTY;
1133 box_clipnodes[i].children[side^1] = i + 1;
1135 box_clipnodes[i].children[side^1] = CONTENTS_SOLID;
1137 box_planes[i].type = i>>1;
1138 box_planes[i].normal[i>>1] = 1;
1142 // trace a line through the generated clipping hull
1143 //rhc.boxsupercontents = boxsupercontents;
1144 rhc.hull = &box_hull;
1146 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
1147 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
1148 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
1149 rhc.trace->fraction = 1;
1150 rhc.trace->allsolid = true;
1151 VectorCopy(start, rhc.start);
1152 VectorCopy(end, rhc.end);
1153 VectorSubtract(rhc.end, rhc.start, rhc.dist);
1154 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
1155 //VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
1156 if (rhc.trace->startsupercontents)
1157 rhc.trace->startsupercontents = boxsupercontents;
1161 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)
1163 memset(trace, 0, sizeof(trace_t));
1164 trace->fraction = 1;
1165 trace->hitsupercontentsmask = hitsupercontentsmask;
1166 trace->skipsupercontentsmask = skipsupercontentsmask;
1167 trace->skipmaterialflagsmask = skipmaterialflagsmask;
1168 if (BoxesOverlap(start, start, cmins, cmaxs))
1170 trace->startsupercontents |= boxsupercontents;
1171 if ((hitsupercontentsmask & boxsupercontents) && !(skipsupercontentsmask & boxsupercontents))
1173 trace->startsolid = true;
1174 trace->allsolid = true;
1179 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)
1182 Mod_Q1BSP_TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK, 0, MATERIALFLAGMASK_TRANSLUCENT);
1183 return trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, acceptmins, acceptmaxs);
1186 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)
1190 float mid, distz = endz - startz;
1194 switch (node->plane->type)
1197 node = node->children[x < node->plane->dist];
1198 continue; // loop back and process the new node
1200 node = node->children[y < node->plane->dist];
1201 continue; // loop back and process the new node
1203 side = startz < node->plane->dist;
1204 if ((endz < node->plane->dist) == side)
1206 node = node->children[side];
1207 continue; // loop back and process the new node
1209 // found an intersection
1210 mid = node->plane->dist;
1213 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
1214 front += startz * node->plane->normal[2];
1215 back += endz * node->plane->normal[2];
1216 side = front < node->plane->dist;
1217 if ((back < node->plane->dist) == side)
1219 node = node->children[side];
1220 continue; // loop back and process the new node
1222 // found an intersection
1223 mid = startz + distz * (front - node->plane->dist) / (front - back);
1227 // go down front side
1228 if (node->children[side]->plane && Mod_BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
1229 return true; // hit something
1231 // check for impact on this node
1232 if (node->numsurfaces)
1235 int dsi, dti, lmwidth, lmheight;
1237 msurface_t *surface;
1238 unsigned char *lightmap;
1239 int maps, line3, size3;
1242 float scale, w, w00, w01, w10, w11;
1244 surface = model->data_surfaces + node->firstsurface;
1245 for (i = 0;i < node->numsurfaces;i++, surface++)
1247 if(!surface->texture)
1249 if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->lightmapinfo || !surface->lightmapinfo->samples)
1250 continue; // no lightmaps
1252 // location we want to sample in the lightmap
1253 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;
1254 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;
1257 // thanks to jitspoe for pointing out that this int cast was
1258 // rounding toward zero, so we floor it
1259 dsi = (int)floor(ds);
1260 dti = (int)floor(dt);
1261 lmwidth = ((surface->lightmapinfo->extents[0]>>4)+1);
1262 lmheight = ((surface->lightmapinfo->extents[1]>>4)+1);
1265 // we have to tolerate a position of lmwidth-1 for some rare
1266 // cases - in which case the sampling position still gets
1267 // clamped but the color gets interpolated to that edge.
1268 if (dsi >= 0 && dsi < lmwidth && dti >= 0 && dti < lmheight)
1270 // in the rare cases where we're sampling slightly off
1271 // the polygon, clamp the sampling position (we can still
1272 // interpolate outside it, where it becomes extrapolation)
1277 if (dsi > lmwidth-2)
1279 if (dti > lmheight-2)
1282 // calculate bilinear interpolation factors
1283 // and also multiply by fixedpoint conversion factors to
1284 // compensate for lightmaps being 0-255 (as 0-2), we use
1285 // r_refdef.scene.rtlightstylevalue here which is already
1286 // 0.000-2.148 range
1287 // (if we used r_refdef.scene.lightstylevalue this
1288 // divisor would be 32768 rather than 128)
1291 w00 = (1 - dsfrac) * (1 - dtfrac) * (1.0f / 128.0f);
1292 w01 = ( dsfrac) * (1 - dtfrac) * (1.0f / 128.0f);
1293 w10 = (1 - dsfrac) * ( dtfrac) * (1.0f / 128.0f);
1294 w11 = ( dsfrac) * ( dtfrac) * (1.0f / 128.0f);
1296 // values for pointer math
1297 line3 = lmwidth * 3; // LadyHavoc: *3 for colored lighting
1298 size3 = lmwidth * lmheight * 3; // LadyHavoc: *3 for colored lighting
1300 // look up the pixel
1301 lightmap = surface->lightmapinfo->samples + dti * line3 + dsi*3; // LadyHavoc: *3 for colored lighting
1303 // bilinear filter each lightmap style, and sum them
1304 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++)
1306 scale = r_refdef.scene.rtlightstylevalue[surface->lightmapinfo->styles[maps]];
1307 w = w00 * scale;VectorMA(ambientcolor, w, lightmap , ambientcolor);
1308 w = w01 * scale;VectorMA(ambientcolor, w, lightmap + 3 , ambientcolor);
1309 w = w10 * scale;VectorMA(ambientcolor, w, lightmap + line3 , ambientcolor);
1310 w = w11 * scale;VectorMA(ambientcolor, w, lightmap + line3 + 3, ambientcolor);
1314 return true; // success
1319 // go down back side
1320 node = node->children[side ^ 1];
1322 distz = endz - startz;
1323 // loop back and process the new node
1326 // did not hit anything
1330 static void Mod_BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
1332 // pretend lighting is coming down from above (due to lack of a lightgrid to know primary lighting direction)
1333 VectorSet(diffusenormal, 0, 0, 1);
1335 if (!model->brushq1.lightdata)
1337 VectorSet(ambientcolor, 1, 1, 1);
1338 VectorSet(diffusecolor, 0, 0, 0);
1342 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);
1345 static const texture_t *Mod_Q1BSP_TraceLineAgainstSurfacesFindTextureOnNode(RecursiveHullCheckTraceInfo_t *t, const model_t *model, const mnode_t *node, double mid[3])
1350 const msurface_t *surface;
1355 float edgenormal[3];
1362 surface = model->data_surfaces + node->firstsurface;
1363 for (i = 0;i < node->numsurfaces;i++, surface++)
1365 if(!surface->texture)
1367 // skip surfaces whose bounding box does not include the point
1368 // if (!BoxesOverlap(mid, mid, surface->mins, surface->maxs))
1370 // skip faces with contents we don't care about
1371 if (!(t->trace->hitsupercontentsmask & surface->texture->supercontents))
1373 // ignore surfaces matching the skipsupercontentsmask (this is rare)
1374 if (t->trace->skipsupercontentsmask & surface->texture->supercontents)
1376 // skip surfaces matching the skipmaterialflagsmask (e.g. MATERIALFLAG_NOSHADOW)
1377 if (t->trace->skipmaterialflagsmask & surface->texture->currentmaterialflags)
1379 // get the surface normal - since it is flat we know any vertex normal will suffice
1380 VectorCopy(model->surfmesh.data_normal3f + 3 * surface->num_firstvertex, normal);
1382 if (DotProduct(t->dist, normal) > 0)
1384 // iterate edges and see if the point is outside one of them
1385 for (j = 0, k = surface->num_vertices - 1;j < surface->num_vertices;k = j, j++)
1387 VectorCopy(model->surfmesh.data_vertex3f + 3 * (surface->num_firstvertex + k), v0);
1388 VectorCopy(model->surfmesh.data_vertex3f + 3 * (surface->num_firstvertex + j), v1);
1389 VectorSubtract(v0, v1, edgedir);
1390 CrossProduct(edgedir, normal, edgenormal);
1391 if (DotProduct(edgenormal, p) > DotProduct(edgenormal, v0))
1394 // if the point is outside one of the edges, it is not within the surface
1395 if (j < surface->num_vertices)
1398 // we hit a surface, this is the impact point...
1399 VectorCopy(normal, t->trace->plane.normal);
1400 t->trace->plane.dist = DotProduct(normal, p);
1402 // calculate the return fraction which is nudged off the surface a bit
1403 t1 = DotProduct(t->start, t->trace->plane.normal) - t->trace->plane.dist;
1404 t2 = DotProduct(t->end, t->trace->plane.normal) - t->trace->plane.dist;
1405 midf = (t1 - collision_impactnudge.value) / (t1 - t2);
1406 t->trace->fraction = bound(0, midf, 1);
1408 t->trace->hittexture = surface->texture->currentframe;
1409 t->trace->hitq3surfaceflags = t->trace->hittexture->surfaceflags;
1410 t->trace->hitsupercontents = t->trace->hittexture->supercontents;
1411 return surface->texture->currentframe;
1416 static int Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(RecursiveHullCheckTraceInfo_t *t, const model_t *model, const mnode_t *node, const double p1[3], const double p2[3])
1418 const mplane_t *plane;
1421 double midf, mid[3];
1422 const mleaf_t *leaf;
1426 plane = node->plane;
1427 if (plane->type < 3)
1429 t1 = p1[plane->type] - plane->dist;
1430 t2 = p2[plane->type] - plane->dist;
1434 t1 = DotProduct (plane->normal, p1) - plane->dist;
1435 t2 = DotProduct (plane->normal, p2) - plane->dist;
1441 node = node->children[1];
1450 node = node->children[0];
1456 // the line intersects, find intersection point
1457 // LadyHavoc: this uses the original trace for maximum accuracy
1458 if (plane->type < 3)
1460 t1 = t->start[plane->type] - plane->dist;
1461 t2 = t->end[plane->type] - plane->dist;
1465 t1 = DotProduct (plane->normal, t->start) - plane->dist;
1466 t2 = DotProduct (plane->normal, t->end) - plane->dist;
1469 midf = t1 / (t1 - t2);
1470 VectorMA(t->start, midf, t->dist, mid);
1472 // recurse both sides, front side first, return if we hit a surface
1473 if (Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(t, model, node->children[side], p1, mid) == HULLCHECKSTATE_DONE)
1474 return HULLCHECKSTATE_DONE;
1476 // test each surface on the node
1477 Mod_Q1BSP_TraceLineAgainstSurfacesFindTextureOnNode(t, model, node, mid);
1478 if (t->trace->hittexture)
1479 return HULLCHECKSTATE_DONE;
1481 // recurse back side
1482 return Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(t, model, node->children[side ^ 1], mid, p2);
1484 leaf = (const mleaf_t *)node;
1485 side = Mod_Q1BSP_SuperContentsFromNativeContents(leaf->contents);
1486 if (!t->trace->startfound)
1488 t->trace->startfound = true;
1489 t->trace->startsupercontents |= side;
1491 if (side & SUPERCONTENTS_LIQUIDSMASK)
1492 t->trace->inwater = true;
1494 t->trace->inopen = true;
1495 if (side & t->trace->hitsupercontentsmask)
1497 // if the first leaf is solid, set startsolid
1498 if (t->trace->allsolid)
1499 t->trace->startsolid = true;
1500 return HULLCHECKSTATE_SOLID;
1504 t->trace->allsolid = false;
1505 return HULLCHECKSTATE_EMPTY;
1509 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)
1511 RecursiveHullCheckTraceInfo_t rhc;
1513 memset(&rhc, 0, sizeof(rhc));
1514 memset(trace, 0, sizeof(trace_t));
1516 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
1517 rhc.trace->skipsupercontentsmask = skipsupercontentsmask;
1518 rhc.trace->skipmaterialflagsmask = skipmaterialflagsmask;
1519 rhc.trace->fraction = 1;
1520 rhc.trace->allsolid = true;
1521 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
1522 VectorCopy(start, rhc.start);
1523 VectorCopy(end, rhc.end);
1524 VectorSubtract(rhc.end, rhc.start, rhc.dist);
1525 Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(&rhc, model, model->brush.data_nodes + rhc.hull->firstclipnode, rhc.start, rhc.end);
1526 VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
1529 static void Mod_BSP_DecompressVis(const unsigned char *in, const unsigned char *inend, unsigned char *out, unsigned char *outend)
1532 unsigned char *outstart = out;
1533 while (out < outend)
1537 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));
1547 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));
1550 for (c = *in++;c > 0;c--)
1554 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));
1565 Mod_Q1BSP_LoadSplitSky
1567 A sky texture is 256*128, with the right side being a masked overlay
1570 static void Mod_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesperpixel)
1575 unsigned int *solidpixels = (unsigned int *)Mem_Alloc(tempmempool, w*h*sizeof(unsigned char[4]));
1576 unsigned int *alphapixels = (unsigned int *)Mem_Alloc(tempmempool, w*h*sizeof(unsigned char[4]));
1578 // allocate a texture pool if we need it
1579 if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
1580 loadmodel->texturepool = R_AllocTexturePool();
1582 if (bytesperpixel == 4)
1584 for (y = 0;y < h;y++)
1586 for (x = 0;x < w;x++)
1588 solidpixels[y*w+x] = ((unsigned *)src)[y*width+x+w];
1589 alphapixels[y*w+x] = ((unsigned *)src)[y*width+x];
1595 // make an average value for the back to avoid
1596 // a fringe on the top level
1605 for (y = 0;y < h;y++)
1607 for (x = 0;x < w;x++)
1609 p = src[x*width+y+w];
1610 r += palette_rgb[p][0];
1611 g += palette_rgb[p][1];
1612 b += palette_rgb[p][2];
1615 bgra.b[2] = r/(w*h);
1616 bgra.b[1] = g/(w*h);
1617 bgra.b[0] = b/(w*h);
1619 for (y = 0;y < h;y++)
1621 for (x = 0;x < w;x++)
1623 solidpixels[y*w+x] = palette_bgra_complete[src[y*width+x+w]];
1625 alphapixels[y*w+x] = p ? palette_bgra_complete[p] : bgra.i;
1630 loadmodel->brush.solidskyskinframe = R_SkinFrame_LoadInternalBGRA("sky_solidtexture", 0 , (unsigned char *) solidpixels, w, h, 0, 0, 0, vid.sRGB3D);
1631 loadmodel->brush.alphaskyskinframe = R_SkinFrame_LoadInternalBGRA("sky_alphatexture", TEXF_ALPHA, (unsigned char *) alphapixels, w, h, 0, 0, 0, vid.sRGB3D);
1632 Mem_Free(solidpixels);
1633 Mem_Free(alphapixels);
1636 static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
1638 int i, j, k, num, max, altmax, mtwidth, mtheight, doffset, incomplete, nummiptex = 0, firstskynoshadowtexture = 0;
1639 skinframe_t *skinframemissing;
1640 texture_t *tx, *tx2, *anims[10], *altanims[10], *currentskynoshadowtexture;
1641 texture_t backuptex;
1642 unsigned char *data, *mtdata;
1644 char mapname[MAX_QPATH], name[MAX_QPATH];
1645 unsigned char zeroopaque[4], zerotrans[4];
1648 Vector4Set(zeroopaque, 0, 0, 0, 255);
1649 Vector4Set(zerotrans, 0, 0, 0, 128);
1651 loadmodel->data_textures = NULL;
1653 // add two slots for notexture walls and notexture liquids, and duplicate
1654 // all sky textures; sky surfaces can be shadow-casting or not, the surface
1655 // loading will choose according to the contents behind the surface
1656 // (necessary to support e1m5 logo shadow which has a SKY contents brush,
1657 // while correctly treating sky textures as occluders in other situations).
1662 nummiptex = MSG_ReadLittleLong(sb);
1663 loadmodel->num_textures = nummiptex + 2;
1664 // save the position so we can go back to it
1665 watermark = sb->readcount;
1666 for (i = 0; i < nummiptex; i++)
1668 doffset = MSG_ReadLittleLong(sb);
1669 if (r_nosurftextures.integer)
1673 Con_DPrintf("%s: miptex #%i missing\n", loadmodel->name, i);
1677 MSG_InitReadBuffer(&miptexsb, sb->data + doffset, sb->cursize - doffset);
1679 // copy name, but only up to 16 characters
1680 // (the output buffer can hold more than this, but the input buffer is
1682 for (j = 0; j < 16; j++)
1683 name[j] = MSG_ReadByte(&miptexsb);
1685 // pretty up the buffer (replacing any trailing garbage with 0)
1686 for (j = (int)strlen(name); j < 16; j++)
1689 if (!strncmp(name, "sky", 3))
1693 // bump it back to where we started parsing
1694 sb->readcount = (int)watermark;
1696 firstskynoshadowtexture = loadmodel->num_textures;
1697 loadmodel->num_textures += numsky;
1701 loadmodel->num_textures = 2;
1702 firstskynoshadowtexture = loadmodel->num_textures;
1704 loadmodel->num_texturesperskin = loadmodel->num_textures;
1706 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
1708 // we'll be writing to these in parallel for sky textures
1709 currentskynoshadowtexture = loadmodel->data_textures + firstskynoshadowtexture;
1711 // fill out all slots with notexture
1712 skinframemissing = R_SkinFrame_LoadMissing();
1713 for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
1715 strlcpy(tx->name, "NO TEXTURE FOUND", sizeof(tx->name));
1718 tx->basealpha = 1.0f;
1719 tx->materialshaderpass = tx->shaderpasses[0] = Mod_CreateShaderPass(loadmodel->mempool, skinframemissing);
1720 tx->materialshaderpass->skinframes[0] = skinframemissing;
1721 tx->currentskinframe = skinframemissing;
1722 tx->basematerialflags = MATERIALFLAG_WALL;
1723 if (i == loadmodel->num_textures - 1)
1725 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1726 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1727 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1731 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1732 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1734 tx->currentframe = tx;
1736 // clear water settings
1739 tx->refractive_index = mod_q3shader_default_refractive_index.value;
1740 tx->refractfactor = 1;
1741 Vector4Set(tx->refractcolor4f, 1, 1, 1, 1);
1742 tx->reflectfactor = 1;
1743 Vector4Set(tx->reflectcolor4f, 1, 1, 1, 1);
1744 tx->r_water_wateralpha = 1;
1745 tx->offsetmapping = OFFSETMAPPING_DEFAULT;
1746 tx->offsetscale = 1;
1748 tx->specularscalemod = 1;
1749 tx->specularpowermod = 1;
1750 tx->transparentsort = TRANSPARENTSORT_DISTANCE;
1751 // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
1752 // JUST GREP FOR "specularscalemod = 1".
1757 Con_Printf("%s: no miptex lump to load textures from\n", loadmodel->name);
1761 s = loadmodel->name;
1762 if (!strncasecmp(s, "maps/", 5))
1764 FS_StripExtension(s, mapname, sizeof(mapname));
1766 // LadyHavoc: mostly rewritten map texture loader
1767 for (i = 0;i < nummiptex;i++)
1769 doffset = MSG_ReadLittleLong(sb);
1770 if (r_nosurftextures.integer)
1774 Con_DPrintf("%s: miptex #%i missing\n", loadmodel->name, i);
1778 MSG_InitReadBuffer(&miptexsb, sb->data + doffset, sb->cursize - doffset);
1780 // copy name, but only up to 16 characters
1781 // (the output buffer can hold more than this, but the input buffer is
1783 for (j = 0;j < 16;j++)
1784 name[j] = MSG_ReadByte(&miptexsb);
1786 // pretty up the buffer (replacing any trailing garbage with 0)
1787 for (j = (int)strlen(name);j < 16;j++)
1792 dpsnprintf(name, sizeof(name), "unnamed%i", i);
1793 Con_DPrintf("%s: warning: renaming unnamed texture to %s\n", loadmodel->name, name);
1796 mtwidth = MSG_ReadLittleLong(&miptexsb);
1797 mtheight = MSG_ReadLittleLong(&miptexsb);
1799 j = MSG_ReadLittleLong(&miptexsb);
1803 if (j < 40 || j + mtwidth * mtheight > miptexsb.cursize)
1805 Con_Printf("%s: Texture \"%s\" is corrupt or incomplete\n", loadmodel->name, name);
1808 mtdata = miptexsb.data + j;
1811 if ((mtwidth & 15) || (mtheight & 15))
1812 Con_DPrintf("%s: warning: texture \"%s\" is not 16 aligned\n", loadmodel->name, name);
1814 // LadyHavoc: force all names to lowercase
1815 for (j = 0;name[j];j++)
1816 if (name[j] >= 'A' && name[j] <= 'Z')
1817 name[j] += 'a' - 'A';
1819 tx = loadmodel->data_textures + i;
1820 // 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
1821 backuptex = loadmodel->data_textures[i];
1822 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) ||
1823 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)))
1825 // set the width/height fields which are used for parsing texcoords in this bsp format
1826 tx->width = mtwidth;
1827 tx->height = mtheight;
1830 // no luck with loading shaders or external textures - restore the in-progress texture loading
1831 loadmodel->data_textures[i] = backuptex;
1833 strlcpy(tx->name, name, sizeof(tx->name));
1834 tx->width = mtwidth;
1835 tx->height = mtheight;
1836 tx->basealpha = 1.0f;
1838 // start out with no animation
1839 tx->currentframe = tx;
1840 tx->currentskinframe = tx->materialshaderpass != NULL ? tx->materialshaderpass->skinframes[0] : NULL;
1842 if (tx->name[0] == '*')
1844 if (!strncmp(tx->name, "*lava", 5))
1846 tx->supercontents = mod_q1bsp_texture_lava.supercontents;
1847 tx->surfaceflags = mod_q1bsp_texture_lava.surfaceflags;
1849 else if (!strncmp(tx->name, "*slime", 6))
1851 tx->supercontents = mod_q1bsp_texture_slime.supercontents;
1852 tx->surfaceflags = mod_q1bsp_texture_slime.surfaceflags;
1856 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1857 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1860 else if (!strncmp(tx->name, "sky", 3))
1862 tx->supercontents = mod_q1bsp_texture_sky.supercontents;
1863 tx->surfaceflags = mod_q1bsp_texture_sky.surfaceflags;
1864 // for the surface traceline we need to hit this surface as a solid...
1865 tx->supercontents |= SUPERCONTENTS_SOLID;
1869 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1870 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1873 if (cls.state != ca_dedicated)
1875 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);
1877 !(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)))
1878 // HACK: It loads custom skybox textures as a wall if loaded as a skinframe.
1879 || !strncmp(tx->name, "sky", 3))
1881 // did not find external texture via shader loading, load it from the bsp or wad3
1882 if (loadmodel->brush.ishlbsp)
1884 // internal texture overrides wad
1885 unsigned char* pixels, * freepixels;
1886 pixels = freepixels = NULL;
1888 pixels = W_ConvertWAD3TextureBGRA(&miptexsb);
1890 pixels = freepixels = W_GetTextureBGRA(tx->name);
1893 tx->width = image_width;
1894 tx->height = image_height;
1895 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);
1898 Mem_Free(freepixels);
1900 else if (!strncmp(tx->name, "sky", 3) && mtwidth == mtheight * 2)
1902 data = loadimagepixelsbgra(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s/%s", mapname, tx->name), false, false, false, NULL);
1904 data = loadimagepixelsbgra(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s", tx->name), false, false, false, NULL);
1905 if (data && image_width == image_height * 2)
1907 Mod_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1910 else if (mtdata != NULL)
1911 Mod_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1913 else if (mtdata) // texture included
1914 tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalQuake(tx->name, TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP, false, r_fullbrights.integer, mtdata, tx->width, tx->height);
1915 // if mtdata is NULL, the "missing" texture has already been assigned to this
1916 // LadyHavoc: some Tenebrae textures get replaced by black
1917 if (!strncmp(tx->name, "*glassmirror", 12)) // Tenebrae
1918 tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_MIPMAP | TEXF_ALPHA, zerotrans, 1, 1, 0, 0, 0, false);
1919 else if (!strncmp(tx->name, "mirror", 6)) // Tenebrae
1920 tx->materialshaderpass->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, 0, zeroopaque, 1, 1, 0, 0, 0, false);
1923 tx->materialshaderpass->skinframes[0] = skinframe;
1924 tx->currentskinframe = tx->materialshaderpass->skinframes[0];
1927 tx->basematerialflags = MATERIALFLAG_WALL;
1928 if (tx->name[0] == '*')
1930 // LadyHavoc: some turbulent textures should not be affected by wateralpha
1931 if (!strncmp(tx->name, "*glassmirror", 12)) // Tenebrae
1932 tx->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_REFLECTION;
1933 else if (!strncmp(tx->name,"*lava",5)
1934 || !strncmp(tx->name,"*teleport",9)
1935 || !strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1936 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1938 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW | MATERIALFLAG_WATERALPHA | MATERIALFLAG_WATERSHADER;
1939 if (tx->currentskinframe != NULL && tx->currentskinframe->hasalpha)
1940 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1942 else if (tx->name[0] == '{') // fence textures
1944 tx->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
1946 else if (!strncmp(tx->name, "mirror", 6)) // Tenebrae
1948 // replace the texture with black
1949 tx->basematerialflags |= MATERIALFLAG_REFLECTION;
1951 else if (!strncmp(tx->name, "sky", 3))
1952 tx->basematerialflags = MATERIALFLAG_SKY;
1953 else if (!strcmp(tx->name, "caulk"))
1954 tx->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
1955 else if (tx->currentskinframe != NULL && tx->currentskinframe->hasalpha)
1956 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1957 tx->currentmaterialflags = tx->basematerialflags;
1959 // duplicate of sky with NOSHADOW
1960 if (tx->basematerialflags & MATERIALFLAG_SKY)
1962 *currentskynoshadowtexture = *tx;
1963 currentskynoshadowtexture->basematerialflags |= MATERIALFLAG_NOSHADOW;
1964 tx->skynoshadowtexture = currentskynoshadowtexture;
1965 currentskynoshadowtexture++;
1969 // sequence the animations
1970 for (i = 0;i < nummiptex;i++)
1972 tx = loadmodel->data_textures + i;
1973 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1976 if ((num < '0' || num > '9') && (num < 'a' || num > 'j'))
1978 Con_Printf("Bad animating texture %s\n", tx->name);
1981 if (tx->anim_total[0] || tx->anim_total[1])
1982 continue; // already sequenced
1984 // find the number of frames in the animation
1985 memset(anims, 0, sizeof(anims));
1986 memset(altanims, 0, sizeof(altanims));
1988 for (j = i;j < nummiptex;j++)
1990 tx2 = loadmodel->data_textures + j;
1991 if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
1995 if (num >= '0' && num <= '9')
1996 anims[num - '0'] = tx2;
1997 else if (num >= 'a' && num <= 'j')
1998 altanims[num - 'a'] = tx2;
1999 // No need to warn otherwise - we already did above.
2003 for (j = 0;j < 10;j++)
2010 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
2013 for (j = 0;j < max;j++)
2017 Con_Printf("Missing frame %i of %s\n", j, tx->name);
2021 for (j = 0;j < altmax;j++)
2025 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
2032 // If we have exactly one frame, something's wrong.
2033 if (max + altmax <= 1)
2035 Con_Printf("Texture %s is animated (leading +) but has only one frame\n", tx->name);
2040 // if there is no alternate animation, duplicate the primary
2041 // animation into the alternate
2043 for (k = 0;k < 10;k++)
2044 altanims[k] = anims[k];
2050 Con_Printf("Missing frame 0 of %s\n", tx->name);
2052 // however, we can handle this by duplicating the alternate animation into the primary
2054 for (k = 0;k < 10;k++)
2055 anims[k] = altanims[k];
2059 // link together the primary animation
2060 for (j = 0;j < max;j++)
2063 tx2->animated = 1; // q1bsp
2064 tx2->anim_total[0] = max;
2065 tx2->anim_total[1] = altmax;
2066 for (k = 0;k < 10;k++)
2068 tx2->anim_frames[0][k] = anims[k];
2069 tx2->anim_frames[1][k] = altanims[k];
2073 // if there really is an alternate anim...
2074 if (anims[0] != altanims[0])
2076 // link together the alternate animation
2077 for (j = 0;j < altmax;j++)
2080 tx2->animated = 1; // q1bsp
2081 // the primary/alternate are reversed here
2082 tx2->anim_total[0] = altmax;
2083 tx2->anim_total[1] = max;
2084 for (k = 0;k < 10;k++)
2086 tx2->anim_frames[0][k] = altanims[k];
2087 tx2->anim_frames[1][k] = anims[k];
2094 static void Mod_Q1BSP_LoadLighting(sizebuf_t *sb)
2097 unsigned char *in, *out, *data, d;
2098 char litfilename[MAX_QPATH];
2099 char dlitfilename[MAX_QPATH];
2100 fs_offset_t filesize;
2101 if (loadmodel->brush.ishlbsp) // LadyHavoc: load the colored lighting data straight
2103 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize);
2104 for (i = 0;i < sb->cursize;i++)
2105 loadmodel->brushq1.lightdata[i] = sb->data[i] >>= 1;
2107 else // LadyHavoc: bsp version 29 (normal white lighting)
2109 // LadyHavoc: hope is not lost yet, check for a .lit file to load
2110 strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
2111 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
2112 strlcpy (dlitfilename, litfilename, sizeof (dlitfilename));
2113 strlcat (litfilename, ".lit", sizeof (litfilename));
2114 strlcat (dlitfilename, ".dlit", sizeof (dlitfilename));
2115 data = (unsigned char*) FS_LoadFile(litfilename, tempmempool, false, &filesize);
2118 if (filesize == (fs_offset_t)(8 + sb->cursize * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
2120 i = LittleLong(((int *)data)[1]);
2123 if (developer_loading.integer)
2124 Con_Printf("loaded %s\n", litfilename);
2125 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
2126 memcpy(loadmodel->brushq1.lightdata, data + 8, filesize - 8);
2128 data = (unsigned char*) FS_LoadFile(dlitfilename, tempmempool, false, &filesize);
2131 if (filesize == (fs_offset_t)(8 + sb->cursize * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
2133 i = LittleLong(((int *)data)[1]);
2136 if (developer_loading.integer)
2137 Con_Printf("loaded %s\n", dlitfilename);
2138 loadmodel->brushq1.nmaplightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
2139 memcpy(loadmodel->brushq1.nmaplightdata, data + 8, filesize - 8);
2140 loadmodel->brushq3.deluxemapping_modelspace = false;
2141 loadmodel->brushq3.deluxemapping = true;
2150 Con_Printf("Unknown .lit file version (%d)\n", i);
2152 else if (filesize == 8)
2153 Con_Print("Empty .lit file, ignoring\n");
2155 Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", (int) filesize, (int) (8 + sb->cursize * 3));
2162 // LadyHavoc: oh well, expand the white lighting data
2165 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize*3);
2167 out = loadmodel->brushq1.lightdata;
2168 for (i = 0;i < sb->cursize;i++)
2178 static void Mod_Q1BSP_LoadVisibility(sizebuf_t *sb)
2180 loadmodel->brushq1.num_compressedpvs = 0;
2181 loadmodel->brushq1.data_compressedpvs = NULL;
2184 loadmodel->brushq1.num_compressedpvs = sb->cursize;
2185 loadmodel->brushq1.data_compressedpvs = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize);
2186 MSG_ReadBytes(sb, sb->cursize, loadmodel->brushq1.data_compressedpvs);
2189 // used only for HalfLife maps
2190 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
2192 char key[128], value[4096];
2196 if (!COM_ParseToken_Simple(&data, false, false, true))
2198 if (com_token[0] != '{')
2202 if (!COM_ParseToken_Simple(&data, false, false, true))
2204 if (com_token[0] == '}')
2205 break; // end of worldspawn
2206 if (com_token[0] == '_')
2207 strlcpy(key, com_token + 1, sizeof(key));
2209 strlcpy(key, com_token, sizeof(key));
2210 while (key[strlen(key)-1] == ' ') // remove trailing spaces
2211 key[strlen(key)-1] = 0;
2212 if (!COM_ParseToken_Simple(&data, false, false, true))
2214 dpsnprintf(value, sizeof(value), "%s", com_token);
2215 if (!strcmp("wad", key)) // for HalfLife maps
2217 if (loadmodel->brush.ishlbsp)
2220 for (i = 0;i < (int)sizeof(value);i++)
2221 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
2223 if (i < (int)sizeof(value) && value[i])
2225 for (;i < (int)sizeof(value);i++)
2227 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
2228 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
2230 else if (value[i] == ';' || value[i] == 0)
2234 W_LoadTextureWadFile(&value[j], false);
2246 static void Mod_Q1BSP_LoadEntities(sizebuf_t *sb)
2248 loadmodel->brush.entities = NULL;
2251 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, sb->cursize + 1);
2252 MSG_ReadBytes(sb, sb->cursize, (unsigned char *)loadmodel->brush.entities);
2253 loadmodel->brush.entities[sb->cursize] = 0;
2254 if (loadmodel->brush.ishlbsp)
2255 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
2259 static void Mod_Q1BSP_LoadVertexes(sizebuf_t *sb)
2263 int structsize = 12;
2265 if (sb->cursize % structsize)
2266 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
2267 count = sb->cursize / structsize;
2268 out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2270 loadmodel->brushq1.vertexes = out;
2271 loadmodel->brushq1.numvertexes = count;
2273 for ( i=0 ; i<count ; i++, out++)
2275 out->position[0] = MSG_ReadLittleFloat(sb);
2276 out->position[1] = MSG_ReadLittleFloat(sb);
2277 out->position[2] = MSG_ReadLittleFloat(sb);
2281 static void Mod_BSP_LoadSubmodels(sizebuf_t *sb, hullinfo_t *hullinfo)
2285 int structsize = hullinfo ? (48+4*hullinfo->filehulls) : 48;
2287 if (sb->cursize % structsize)
2288 Host_Error ("Mod_BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
2290 count = sb->cursize / structsize;
2291 out = (mmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
2293 loadmodel->brushq1.submodels = out;
2294 loadmodel->brush.numsubmodels = count;
2296 for (i = 0; i < count; i++, out++)
2298 // spread out the mins / maxs by a pixel
2299 out->mins[0] = MSG_ReadLittleFloat(sb) - 1;
2300 out->mins[1] = MSG_ReadLittleFloat(sb) - 1;
2301 out->mins[2] = MSG_ReadLittleFloat(sb) - 1;
2302 out->maxs[0] = MSG_ReadLittleFloat(sb) + 1;
2303 out->maxs[1] = MSG_ReadLittleFloat(sb) + 1;
2304 out->maxs[2] = MSG_ReadLittleFloat(sb) + 1;
2305 out->origin[0] = MSG_ReadLittleFloat(sb);
2306 out->origin[1] = MSG_ReadLittleFloat(sb);
2307 out->origin[2] = MSG_ReadLittleFloat(sb);
2310 for (j = 0; j < hullinfo->filehulls; j++)
2311 out->headnode[j] = MSG_ReadLittleLong(sb);
2312 out->visleafs = MSG_ReadLittleLong(sb);
2314 else // Quake 2 has only one hull
2315 out->headnode[0] = MSG_ReadLittleLong(sb);
2317 out->firstface = MSG_ReadLittleLong(sb);
2318 out->numfaces = MSG_ReadLittleLong(sb);
2322 static void Mod_Q1BSP_LoadEdges(sizebuf_t *sb)
2326 int structsize = loadmodel->brush.isbsp2 ? 8 : 4;
2328 if (sb->cursize % structsize)
2329 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
2330 count = sb->cursize / structsize;
2331 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
2333 loadmodel->brushq1.edges = out;
2334 loadmodel->brushq1.numedges = count;
2336 for ( i=0 ; i<count ; i++, out++)
2338 if (loadmodel->brush.isbsp2)
2340 out->v[0] = (unsigned int)MSG_ReadLittleLong(sb);
2341 out->v[1] = (unsigned int)MSG_ReadLittleLong(sb);
2345 out->v[0] = (unsigned short)MSG_ReadLittleShort(sb);
2346 out->v[1] = (unsigned short)MSG_ReadLittleShort(sb);
2348 if ((int)out->v[0] >= loadmodel->brushq1.numvertexes || (int)out->v[1] >= loadmodel->brushq1.numvertexes)
2350 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);
2351 if(!loadmodel->brushq1.numvertexes)
2352 Host_Error("Mod_Q1BSP_LoadEdges: %s has edges but no vertexes, cannot fix\n", loadmodel->name);
2360 static void Mod_Q1BSP_LoadTexinfo(sizebuf_t *sb)
2363 int i, j, k, count, miptex;
2364 int structsize = 40;
2366 if (sb->cursize % structsize)
2367 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
2368 count = sb->cursize / structsize;
2369 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
2371 loadmodel->brushq1.texinfo = out;
2372 loadmodel->brushq1.numtexinfo = count;
2374 for (i = 0;i < count;i++, out++)
2376 for (k = 0;k < 2;k++)
2377 for (j = 0;j < 4;j++)
2378 out->vecs[k][j] = MSG_ReadLittleFloat(sb);
2380 miptex = MSG_ReadLittleLong(sb);
2381 out->q1flags = MSG_ReadLittleLong(sb);
2383 if (out->q1flags & TEX_SPECIAL)
2385 // if texture chosen is NULL or the shader needs a lightmap,
2386 // force to notexture water shader
2387 out->textureindex = loadmodel->num_textures - 1;
2391 // if texture chosen is NULL, force to notexture
2392 out->textureindex = loadmodel->num_textures - 2;
2394 // see if the specified miptex is valid and try to use it instead
2395 if (loadmodel->data_textures)
2397 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
2398 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
2400 out->textureindex = miptex;
2406 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
2411 mins[0] = mins[1] = mins[2] = 9999;
2412 maxs[0] = maxs[1] = maxs[2] = -9999;
2414 for (i = 0;i < numverts;i++)
2416 for (j = 0;j < 3;j++, v++)
2426 #define MAX_SUBDIVPOLYTRIANGLES 4096
2427 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
2429 static int subdivpolyverts, subdivpolytriangles;
2430 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
2431 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
2433 static int subdivpolylookupvert(vec3_t v)
2436 for (i = 0;i < subdivpolyverts;i++)
2437 if (subdivpolyvert[i][0] == v[0]
2438 && subdivpolyvert[i][1] == v[1]
2439 && subdivpolyvert[i][2] == v[2])
2441 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
2442 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
2443 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
2444 return subdivpolyverts++;
2447 static void SubdividePolygon(int numverts, float *verts)
2449 int i, i1, i2, i3, f, b, c, p;
2450 vec3_t mins, maxs, front[256], back[256];
2451 float m, *pv, *cv, dist[256], frac;
2454 Host_Error("SubdividePolygon: ran out of verts in buffer");
2456 BoundPoly(numverts, verts, mins, maxs);
2458 for (i = 0;i < 3;i++)
2460 m = (mins[i] + maxs[i]) * 0.5;
2461 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
2462 if (maxs[i] - m < 8)
2464 if (m - mins[i] < 8)
2468 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
2469 dist[c] = cv[i] - m;
2472 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
2476 VectorCopy(pv, front[f]);
2481 VectorCopy(pv, back[b]);
2484 if (dist[p] == 0 || dist[c] == 0)
2486 if ((dist[p] > 0) != (dist[c] > 0) )
2489 frac = dist[p] / (dist[p] - dist[c]);
2490 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
2491 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
2492 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
2498 SubdividePolygon(f, front[0]);
2499 SubdividePolygon(b, back[0]);
2503 i1 = subdivpolylookupvert(verts);
2504 i2 = subdivpolylookupvert(verts + 3);
2505 for (i = 2;i < numverts;i++)
2507 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
2509 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
2513 i3 = subdivpolylookupvert(verts + i * 3);
2514 subdivpolyindex[subdivpolytriangles][0] = i1;
2515 subdivpolyindex[subdivpolytriangles][1] = i2;
2516 subdivpolyindex[subdivpolytriangles][2] = i3;
2518 subdivpolytriangles++;
2522 //Breaks a polygon up along axial 64 unit
2523 //boundaries so that turbulent and sky warps
2524 //can be done reasonably.
2525 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
2531 subdivpolytriangles = 0;
2532 subdivpolyverts = 0;
2533 SubdividePolygon(surface->num_vertices, (surface->mesh->data_vertex3f + 3 * surface->num_firstvertex));
2534 if (subdivpolytriangles < 1)
2535 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?");
2537 surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
2538 mesh->num_vertices = subdivpolyverts;
2539 mesh->num_triangles = subdivpolytriangles;
2540 mesh->vertex = (surfvertex_t *)(mesh + 1);
2541 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
2542 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
2544 for (i = 0;i < mesh->num_triangles;i++)
2545 for (j = 0;j < 3;j++)
2546 mesh->index[i*3+j] = subdivpolyindex[i][j];
2548 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
2550 VectorCopy(subdivpolyvert[i], v->v);
2551 v->st[0] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[0]);
2552 v->st[1] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[1]);
2557 extern cvar_t gl_max_lightmapsize;
2558 static void Mod_Q1BSP_LoadFaces(sizebuf_t *sb)
2560 msurface_t *surface;
2561 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber, lightmapsize, totallightmapsamples, lightmapoffset, texinfoindex;
2562 float texmins[2], texmaxs[2], val;
2563 rtexture_t *lightmaptexture, *deluxemaptexture;
2565 int structsize = loadmodel->brush.isbsp2 ? 28 : 20;
2567 if (sb->cursize % structsize)
2568 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
2569 count = sb->cursize / structsize;
2570 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
2571 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
2573 loadmodel->num_surfaces = count;
2575 loadmodel->brushq1.firstrender = true;
2576 loadmodel->brushq1.lightmapupdateflags = (unsigned char *)Mem_Alloc(loadmodel->mempool, count*sizeof(unsigned char));
2580 for (surfacenum = 0;surfacenum < count;surfacenum++)
2582 if (loadmodel->brush.isbsp2)
2583 numedges = BuffLittleLong(sb->data + structsize * surfacenum + 12);
2585 numedges = BuffLittleShort(sb->data + structsize * surfacenum + 8);
2586 totalverts += numedges;
2587 totaltris += numedges - 2;
2590 Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false);
2592 lightmaptexture = NULL;
2593 deluxemaptexture = r_texture_blanknormalmap;
2595 lightmapsize = bound(256, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d);
2596 totallightmapsamples = 0;
2600 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2602 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
2603 // the struct on disk is the same in BSP29 (Q1), BSP30 (HL1), and IBSP38 (Q2)
2604 planenum = loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2605 /*side = */loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2606 firstedge = MSG_ReadLittleLong(sb);
2607 numedges = loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2608 texinfoindex = loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2609 for (i = 0;i < MAXLIGHTMAPS;i++)
2610 surface->lightmapinfo->styles[i] = MSG_ReadByte(sb);
2611 lightmapoffset = MSG_ReadLittleLong(sb);
2613 // FIXME: validate edges, texinfo, etc?
2614 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)
2615 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)", firstedge, numedges, loadmodel->brushq1.numsurfedges);
2616 if ((unsigned int) texinfoindex >= (unsigned int) loadmodel->brushq1.numtexinfo)
2617 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)", texinfoindex, loadmodel->brushq1.numtexinfo);
2618 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
2619 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)", planenum, loadmodel->brush.num_planes);
2621 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + texinfoindex;
2622 surface->texture = loadmodel->data_textures + surface->lightmapinfo->texinfo->textureindex;
2624 // Q2BSP doesn't use lightmaps on sky or warped surfaces (water), but still has a lightofs of 0
2625 if (lightmapoffset == 0 && (surface->texture->q2flags & (Q2SURF_SKY | Q2SURF_WARP)))
2626 lightmapoffset = -1;
2628 //surface->flags = surface->texture->flags;
2629 //if (LittleShort(in->side))
2630 // surface->flags |= SURF_PLANEBACK;
2631 //surface->plane = loadmodel->brush.data_planes + planenum;
2633 surface->num_firstvertex = totalverts;
2634 surface->num_vertices = numedges;
2635 surface->num_firsttriangle = totaltris;
2636 surface->num_triangles = numedges - 2;
2637 totalverts += numedges;
2638 totaltris += numedges - 2;
2640 // convert edges back to a normal polygon
2641 for (i = 0;i < surface->num_vertices;i++)
2643 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
2645 // note: the q1bsp format does not allow a 0 surfedge (it would have no negative counterpart)
2647 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2649 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2650 s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2651 t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2652 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
2653 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
2654 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
2655 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
2656 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
2659 for (i = 0;i < surface->num_triangles;i++)
2661 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
2662 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
2663 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
2666 // compile additional data about the surface geometry
2667 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);
2668 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);
2669 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
2671 // generate surface extents information
2672 texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2673 texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2674 for (i = 1;i < surface->num_vertices;i++)
2676 for (j = 0;j < 2;j++)
2678 val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
2679 texmins[j] = min(texmins[j], val);
2680 texmaxs[j] = max(texmaxs[j], val);
2683 for (i = 0;i < 2;i++)
2685 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
2686 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
2689 smax = surface->lightmapinfo->extents[0] >> 4;
2690 tmax = surface->lightmapinfo->extents[1] >> 4;
2691 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2692 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2695 surface->lightmaptexture = NULL;
2696 surface->deluxemaptexture = r_texture_blanknormalmap;
2697 if (lightmapoffset == -1)
2699 surface->lightmapinfo->samples = NULL;
2701 // give non-lightmapped water a 1x white lightmap
2702 if (!loadmodel->brush.isq2bsp && surface->texture->name[0] == '*' && (surface->lightmapinfo->texinfo->q1flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
2704 surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2705 surface->lightmapinfo->styles[0] = 0;
2706 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
2710 else if (loadmodel->brush.ishlbsp || loadmodel->brush.isq2bsp) // LadyHavoc: HalfLife map (bsp version 30)
2711 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + lightmapoffset;
2712 else // LadyHavoc: white lighting (bsp version 29)
2714 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (lightmapoffset * 3);
2715 if (loadmodel->brushq1.nmaplightdata)
2716 surface->lightmapinfo->nmapsamples = loadmodel->brushq1.nmaplightdata + (lightmapoffset * 3);
2719 // check if we should apply a lightmap to this
2720 if (!(surface->lightmapinfo->texinfo->q1flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
2722 if (ssize > 256 || tsize > 256)
2723 Host_Error("Bad surface extents");
2725 if (lightmapsize < ssize)
2726 lightmapsize = ssize;
2727 if (lightmapsize < tsize)
2728 lightmapsize = tsize;
2730 totallightmapsamples += ssize*tsize;
2732 // force lightmap upload on first time seeing the surface
2734 // additionally this is used by the later code to see if a
2735 // lightmap is needed on this surface (rather than duplicating the
2737 loadmodel->brushq1.lightmapupdateflags[surfacenum] = true;
2738 loadmodel->lit = true;
2742 // small maps (such as ammo boxes especially) don't need big lightmap
2743 // textures, so this code tries to guess a good size based on
2744 // totallightmapsamples (size of the lightmaps lump basically), as well as
2745 // trying to max out the size if there is a lot of lightmap data to store
2746 // additionally, never choose a lightmapsize that is smaller than the
2747 // largest surface encountered (as it would fail)
2749 for (lightmapsize = 64; (lightmapsize < i) && (lightmapsize < bound(128, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d)) && (totallightmapsamples > lightmapsize*lightmapsize); lightmapsize*=2)
2752 // now that we've decided the lightmap texture size, we can do the rest
2753 if (cls.state != ca_dedicated)
2755 int stainmapsize = 0;
2756 mod_alloclightmap_state_t allocState;
2758 Mod_AllocLightmap_Init(&allocState, loadmodel->mempool, lightmapsize, lightmapsize);
2759 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2761 int iu, iv, lightmapx = 0, lightmapy = 0;
2762 float u, v, ubase, vbase, uscale, vscale;
2764 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
2767 smax = surface->lightmapinfo->extents[0] >> 4;
2768 tmax = surface->lightmapinfo->extents[1] >> 4;
2769 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2770 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2771 stainmapsize += ssize * tsize * 3;
2773 if (!lightmaptexture || !Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy))
2775 // allocate a texture pool if we need it
2776 if (loadmodel->texturepool == NULL)
2777 loadmodel->texturepool = R_AllocTexturePool();
2778 // could not find room, make a new lightmap
2779 loadmodel->brushq3.num_mergedlightmaps = lightmapnumber + 1;
2780 loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Realloc(loadmodel->mempool, loadmodel->brushq3.data_lightmaps, loadmodel->brushq3.num_mergedlightmaps * sizeof(loadmodel->brushq3.data_lightmaps[0]));
2781 loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Realloc(loadmodel->mempool, loadmodel->brushq3.data_deluxemaps, loadmodel->brushq3.num_mergedlightmaps * sizeof(loadmodel->brushq3.data_deluxemaps[0]));
2782 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);
2783 if (loadmodel->brushq1.nmaplightdata)
2784 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);
2786 Mod_AllocLightmap_Reset(&allocState);
2787 Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy);
2789 surface->lightmaptexture = lightmaptexture;
2790 surface->deluxemaptexture = deluxemaptexture;
2791 surface->lightmapinfo->lightmaporigin[0] = lightmapx;
2792 surface->lightmapinfo->lightmaporigin[1] = lightmapy;
2794 uscale = 1.0f / (float)lightmapsize;
2795 vscale = 1.0f / (float)lightmapsize;
2796 ubase = lightmapx * uscale;
2797 vbase = lightmapy * vscale;
2799 for (i = 0;i < surface->num_vertices;i++)
2801 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);
2802 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);
2803 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
2804 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
2805 // LadyHavoc: calc lightmap data offset for vertex lighting to use
2808 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
2812 if (cl_stainmaps.integer)
2814 // allocate stainmaps for permanent marks on walls and clear white
2815 unsigned char *stainsamples = NULL;
2816 stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, stainmapsize);
2817 memset(stainsamples, 255, stainmapsize);
2819 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2821 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
2823 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2824 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2825 surface->lightmapinfo->stainsamples = stainsamples;
2826 stainsamples += ssize * tsize * 3;
2831 // generate ushort elements array if possible
2832 if (loadmodel->surfmesh.data_element3s)
2833 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2834 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2837 static void Mod_BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
2840 // Host_Error("Mod_BSP_LoadNodes_RecursiveSetParent: runaway recursion");
2841 node->parent = parent;
2844 // this is a node, recurse to children
2845 Mod_BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
2846 Mod_BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
2847 // combine supercontents of children
2848 node->combinedsupercontents = node->children[0]->combinedsupercontents | node->children[1]->combinedsupercontents;
2853 mleaf_t *leaf = (mleaf_t *)node;
2854 // if this is a leaf, calculate supercontents mask from all collidable
2855 // primitives in the leaf (brushes and collision surfaces)
2856 // also flag if the leaf contains any collision surfaces
2857 leaf->combinedsupercontents = 0;
2858 // combine the supercontents values of all brushes in this leaf
2859 for (j = 0;j < leaf->numleafbrushes;j++)
2860 leaf->combinedsupercontents |= loadmodel->brush.data_brushes[leaf->firstleafbrush[j]].texture->supercontents;
2861 // check if this leaf contains any collision surfaces (q3 patches)
2862 for (j = 0;j < leaf->numleafsurfaces;j++)
2864 msurface_t *surface = loadmodel->data_surfaces + leaf->firstleafsurface[j];
2865 if (surface->num_collisiontriangles)
2867 leaf->containscollisionsurfaces = true;
2868 leaf->combinedsupercontents |= surface->texture->supercontents;
2874 static void Mod_Q1BSP_LoadNodes(sizebuf_t *sb)
2876 int i, j, count, p, child[2];
2878 int structsize = loadmodel->brush.isbsp2rmqe ? 32 : (loadmodel->brush.isbsp2 ? 44 : 24);
2880 if (sb->cursize % structsize)
2881 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
2882 count = sb->cursize / structsize;
2884 Host_Error("Mod_Q1BSP_LoadNodes: missing BSP tree in %s",loadmodel->name);
2885 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2887 loadmodel->brush.data_nodes = out;
2888 loadmodel->brush.num_nodes = count;
2890 for ( i=0 ; i<count ; i++, out++)
2892 p = MSG_ReadLittleLong(sb);
2893 out->plane = loadmodel->brush.data_planes + p;
2895 if (loadmodel->brush.isbsp2rmqe)
2897 child[0] = MSG_ReadLittleLong(sb);
2898 child[1] = MSG_ReadLittleLong(sb);
2899 out->mins[0] = MSG_ReadLittleShort(sb);
2900 out->mins[1] = MSG_ReadLittleShort(sb);
2901 out->mins[2] = MSG_ReadLittleShort(sb);
2902 out->maxs[0] = MSG_ReadLittleShort(sb);
2903 out->maxs[1] = MSG_ReadLittleShort(sb);
2904 out->maxs[2] = MSG_ReadLittleShort(sb);
2905 out->firstsurface = MSG_ReadLittleLong(sb);
2906 out->numsurfaces = MSG_ReadLittleLong(sb);
2908 else if (loadmodel->brush.isbsp2)
2910 child[0] = MSG_ReadLittleLong(sb);
2911 child[1] = MSG_ReadLittleLong(sb);
2912 out->mins[0] = MSG_ReadLittleFloat(sb);
2913 out->mins[1] = MSG_ReadLittleFloat(sb);
2914 out->mins[2] = MSG_ReadLittleFloat(sb);
2915 out->maxs[0] = MSG_ReadLittleFloat(sb);
2916 out->maxs[1] = MSG_ReadLittleFloat(sb);
2917 out->maxs[2] = MSG_ReadLittleFloat(sb);
2918 out->firstsurface = MSG_ReadLittleLong(sb);
2919 out->numsurfaces = MSG_ReadLittleLong(sb);
2923 child[0] = (unsigned short)MSG_ReadLittleShort(sb);
2924 child[1] = (unsigned short)MSG_ReadLittleShort(sb);
2925 if (child[0] >= count)
2927 if (child[1] >= count)
2930 out->mins[0] = MSG_ReadLittleShort(sb);
2931 out->mins[1] = MSG_ReadLittleShort(sb);
2932 out->mins[2] = MSG_ReadLittleShort(sb);
2933 out->maxs[0] = MSG_ReadLittleShort(sb);
2934 out->maxs[1] = MSG_ReadLittleShort(sb);
2935 out->maxs[2] = MSG_ReadLittleShort(sb);
2937 out->firstsurface = (unsigned short)MSG_ReadLittleShort(sb);
2938 out->numsurfaces = (unsigned short)MSG_ReadLittleShort(sb);
2941 for (j=0 ; j<2 ; j++)
2943 // LadyHavoc: this code supports broken bsp files produced by
2944 // arguire qbsp which can produce more than 32768 nodes, any value
2945 // below count is assumed to be a node number, any other value is
2946 // assumed to be a leaf number
2950 if (p < loadmodel->brush.num_nodes)
2951 out->children[j] = loadmodel->brush.data_nodes + p;
2954 Con_Printf("Mod_Q1BSP_LoadNodes: invalid node index %i (file has only %i nodes)\n", p, loadmodel->brush.num_nodes);
2955 // map it to the solid leaf
2956 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
2961 // get leaf index as a positive value starting at 0 (-1 becomes 0, -2 becomes 1, etc)
2963 if (p < loadmodel->brush.num_leafs)
2964 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + p);
2967 Con_Printf("Mod_Q1BSP_LoadNodes: invalid leaf index %i (file has only %i leafs)\n", p, loadmodel->brush.num_leafs);
2968 // map it to the solid leaf
2969 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
2975 Mod_BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
2978 static void Mod_Q1BSP_LoadLeafs(sizebuf_t *sb)
2981 int i, j, count, p, firstmarksurface, nummarksurfaces;
2982 int structsize = loadmodel->brush.isbsp2rmqe ? 32 : (loadmodel->brush.isbsp2 ? 44 : 28);
2984 if (sb->cursize % structsize)
2985 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2986 count = sb->cursize / structsize;
2987 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2989 loadmodel->brush.data_leafs = out;
2990 loadmodel->brush.num_leafs = count;
2991 // get visleafs from the submodel data
2992 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2993 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2994 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2995 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2997 // FIXME: this function could really benefit from some error checking
2998 for ( i=0 ; i<count ; i++, out++)
3000 out->contents = MSG_ReadLittleLong(sb);
3002 out->clusterindex = i - 1;
3003 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
3004 out->clusterindex = -1;
3006 p = MSG_ReadLittleLong(sb);
3007 // ignore visofs errors on leaf 0 (solid)
3008 if (p >= 0 && out->clusterindex >= 0)
3010 if (p >= loadmodel->brushq1.num_compressedpvs)
3011 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
3013 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);
3016 if (loadmodel->brush.isbsp2rmqe)
3018 out->mins[0] = MSG_ReadLittleShort(sb);
3019 out->mins[1] = MSG_ReadLittleShort(sb);
3020 out->mins[2] = MSG_ReadLittleShort(sb);
3021 out->maxs[0] = MSG_ReadLittleShort(sb);
3022 out->maxs[1] = MSG_ReadLittleShort(sb);
3023 out->maxs[2] = MSG_ReadLittleShort(sb);
3025 firstmarksurface = MSG_ReadLittleLong(sb);
3026 nummarksurfaces = MSG_ReadLittleLong(sb);
3028 else if (loadmodel->brush.isbsp2)
3030 out->mins[0] = MSG_ReadLittleFloat(sb);
3031 out->mins[1] = MSG_ReadLittleFloat(sb);
3032 out->mins[2] = MSG_ReadLittleFloat(sb);
3033 out->maxs[0] = MSG_ReadLittleFloat(sb);
3034 out->maxs[1] = MSG_ReadLittleFloat(sb);
3035 out->maxs[2] = MSG_ReadLittleFloat(sb);
3037 firstmarksurface = MSG_ReadLittleLong(sb);
3038 nummarksurfaces = MSG_ReadLittleLong(sb);
3042 out->mins[0] = MSG_ReadLittleShort(sb);
3043 out->mins[1] = MSG_ReadLittleShort(sb);
3044 out->mins[2] = MSG_ReadLittleShort(sb);
3045 out->maxs[0] = MSG_ReadLittleShort(sb);
3046 out->maxs[1] = MSG_ReadLittleShort(sb);
3047 out->maxs[2] = MSG_ReadLittleShort(sb);
3049 firstmarksurface = (unsigned short)MSG_ReadLittleShort(sb);
3050 nummarksurfaces = (unsigned short)MSG_ReadLittleShort(sb);
3053 if (firstmarksurface >= 0 && firstmarksurface + nummarksurfaces <= loadmodel->brush.num_leafsurfaces)
3055 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + firstmarksurface;
3056 out->numleafsurfaces = nummarksurfaces;
3060 Con_Printf("Mod_Q1BSP_LoadLeafs: invalid leafsurface range %i:%i outside range %i:%i\n", firstmarksurface, firstmarksurface+nummarksurfaces, 0, loadmodel->brush.num_leafsurfaces);
3061 out->firstleafsurface = NULL;
3062 out->numleafsurfaces = 0;
3065 for (j = 0;j < 4;j++)
3066 out->ambient_sound_level[j] = MSG_ReadByte(sb);
3070 static qbool Mod_Q1BSP_CheckWaterAlphaSupport(void)
3074 const unsigned char *pvs;
3075 // if there's no vis data, assume supported (because everything is visible all the time)
3076 if (!loadmodel->brush.data_pvsclusters)
3078 // check all liquid leafs to see if they can see into empty leafs, if any
3079 // can we can assume this map supports r_wateralpha
3080 for (i = 0, leaf = loadmodel->brush.data_leafs;i < loadmodel->brush.num_leafs;i++, leaf++)
3082 if ((leaf->contents == CONTENTS_WATER || leaf->contents == CONTENTS_SLIME) && leaf->clusterindex >= 0)
3084 pvs = loadmodel->brush.data_pvsclusters + leaf->clusterindex * loadmodel->brush.num_pvsclusterbytes;
3085 for (j = 0;j < loadmodel->brush.num_leafs;j++)
3086 if (CHECKPVSBIT(pvs, loadmodel->brush.data_leafs[j].clusterindex) && loadmodel->brush.data_leafs[j].contents == CONTENTS_EMPTY)
3093 static void Mod_Q1BSP_LoadClipnodes(sizebuf_t *sb, hullinfo_t *hullinfo)
3098 int structsize = loadmodel->brush.isbsp2 ? 12 : 8;
3100 if (sb->cursize % structsize)
3101 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
3102 count = sb->cursize / structsize;
3103 out = (mclipnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
3105 loadmodel->brushq1.clipnodes = out;
3106 loadmodel->brushq1.numclipnodes = count;
3108 for (i = 1; i < MAX_MAP_HULLS; i++)
3110 hull = &loadmodel->brushq1.hulls[i];
3111 hull->clipnodes = out;
3112 hull->firstclipnode = 0;
3113 hull->lastclipnode = count-1;
3114 hull->planes = loadmodel->brush.data_planes;
3115 hull->clip_mins[0] = hullinfo->hullsizes[i][0][0];
3116 hull->clip_mins[1] = hullinfo->hullsizes[i][0][1];
3117 hull->clip_mins[2] = hullinfo->hullsizes[i][0][2];
3118 hull->clip_maxs[0] = hullinfo->hullsizes[i][1][0];
3119 hull->clip_maxs[1] = hullinfo->hullsizes[i][1][1];
3120 hull->clip_maxs[2] = hullinfo->hullsizes[i][1][2];
3121 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
3124 for (i=0 ; i<count ; i++, out++)
3126 out->planenum = MSG_ReadLittleLong(sb);
3127 if (out->planenum < 0 || out->planenum >= loadmodel->brush.num_planes)
3128 Host_Error("%s: Corrupt clipping hull(out of range planenum)", loadmodel->name);
3129 if (loadmodel->brush.isbsp2)
3131 out->children[0] = MSG_ReadLittleLong(sb);
3132 out->children[1] = MSG_ReadLittleLong(sb);
3133 if (out->children[0] >= count)
3134 Host_Error("%s: Corrupt clipping hull (invalid child index)", loadmodel->name);
3135 if (out->children[1] >= count)
3136 Host_Error("%s: Corrupt clipping hull (invalid child index)", loadmodel->name);
3140 // LadyHavoc: this code supports arguire qbsp's broken clipnodes indices (more than 32768 clipnodes), values above count are assumed to be contents values
3141 out->children[0] = (unsigned short)MSG_ReadLittleShort(sb);
3142 out->children[1] = (unsigned short)MSG_ReadLittleShort(sb);
3143 if (out->children[0] >= count)
3144 out->children[0] -= 65536;
3145 if (out->children[1] >= count)
3146 out->children[1] -= 65536;
3151 //Duplicate the drawing hull structure as a clipping hull
3152 static void Mod_Q1BSP_MakeHull0(void)
3159 hull = &loadmodel->brushq1.hulls[0];
3161 in = loadmodel->brush.data_nodes;
3162 out = (mclipnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(*out));
3164 hull->clipnodes = out;
3165 hull->firstclipnode = 0;
3166 hull->lastclipnode = loadmodel->brush.num_nodes - 1;
3167 hull->planes = loadmodel->brush.data_planes;
3169 for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
3171 out->planenum = in->plane - loadmodel->brush.data_planes;
3172 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
3173 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
3177 static void Mod_Q1BSP_LoadLeaffaces(sizebuf_t *sb)
3180 int structsize = loadmodel->brush.isbsp2 ? 4 : 2;
3182 if (sb->cursize % structsize)
3183 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
3184 loadmodel->brush.num_leafsurfaces = sb->cursize / structsize;
3185 loadmodel->brush.data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
3187 if (loadmodel->brush.isbsp2)
3189 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
3191 j = MSG_ReadLittleLong(sb);
3192 if (j < 0 || j >= loadmodel->num_surfaces)
3193 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
3194 loadmodel->brush.data_leafsurfaces[i] = j;
3199 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
3201 j = (unsigned short) MSG_ReadLittleShort(sb);
3202 if (j >= loadmodel->num_surfaces)
3203 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
3204 loadmodel->brush.data_leafsurfaces[i] = j;
3209 static void Mod_Q1BSP_LoadSurfedges(sizebuf_t *sb)
3214 if (sb->cursize % structsize)
3215 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
3216 loadmodel->brushq1.numsurfedges = sb->cursize / structsize;
3217 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
3219 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
3220 loadmodel->brushq1.surfedges[i] = MSG_ReadLittleLong(sb);
3224 static void Mod_Q1BSP_LoadPlanes(sizebuf_t *sb)
3228 int structsize = 20;
3230 if (sb->cursize % structsize)
3231 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
3232 loadmodel->brush.num_planes = sb->cursize / structsize;
3233 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
3235 for (i = 0;i < loadmodel->brush.num_planes;i++, out++)
3237 out->normal[0] = MSG_ReadLittleFloat(sb);
3238 out->normal[1] = MSG_ReadLittleFloat(sb);
3239 out->normal[2] = MSG_ReadLittleFloat(sb);
3240 out->dist = MSG_ReadLittleFloat(sb);
3241 MSG_ReadLittleLong(sb); // type is not used, we use PlaneClassify
3246 // fixes up sky surfaces that have SKY contents behind them, so that they do not cast shadows (e1m5 logo shadow trick).
3247 static void Mod_Q1BSP_AssignNoShadowSkySurfaces(model_t *mod)
3250 msurface_t *surface;
3253 for (surfaceindex = mod->submodelsurfaces_start; surfaceindex < mod->submodelsurfaces_end;surfaceindex++)
3255 surface = mod->data_surfaces + surfaceindex;
3256 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
3258 // check if the point behind the surface polygon is SOLID or SKY contents
3259 VectorMAMAM(0.5f, surface->mins, 0.5f, surface->maxs, -0.25f, mod->surfmesh.data_normal3f + 3*surface->num_firstvertex, center);
3260 contents = Mod_Q1BSP_PointSuperContents(mod, 0, center);
3261 if (!(contents & SUPERCONTENTS_SOLID))
3262 surface->texture = surface->texture->skynoshadowtexture;
3267 static void Mod_Q1BSP_LoadMapBrushes(void)
3271 int submodel, numbrushes;
3273 char *text, *maptext;
3274 char mapfilename[MAX_QPATH];
3275 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
3276 strlcat (mapfilename, ".map", sizeof (mapfilename));
3277 maptext = (unsigned char*) FS_LoadFile(mapfilename, tempmempool, false, NULL);
3281 if (!COM_ParseToken_Simple(&data, false, false, true))
3286 if (!COM_ParseToken_Simple(&data, false, false, true))
3288 if (com_token[0] != '{')
3294 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
3297 if (!COM_ParseToken_Simple(&data, false, false, true))
3299 if (com_token[0] == '}')
3300 break; // end of entity
3301 if (com_token[0] == '{')
3308 if (submodel > loadmodel->brush.numsubmodels)
3310 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
3314 model = loadmodel->brush.submodels[submodel];
3321 if (!COM_ParseToken_Simple(&data, false, false, true))
3323 if (com_token[0] == '}')
3324 break; // end of brush
3325 // each brush face should be this format:
3326 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
3327 // FIXME: support hl .map format
3328 for (pointnum = 0;pointnum < 3;pointnum++)
3330 COM_ParseToken_Simple(&data, false, false, true);
3331 for (componentnum = 0;componentnum < 3;componentnum++)
3333 COM_ParseToken_Simple(&data, false, false, true);
3334 point[pointnum][componentnum] = atof(com_token);
3336 COM_ParseToken_Simple(&data, false, false, true);
3338 COM_ParseToken_Simple(&data, false, false, true);
3339 strlcpy(facetexture, com_token, sizeof(facetexture));
3340 COM_ParseToken_Simple(&data, false, false, true);
3341 //scroll_s = atof(com_token);
3342 COM_ParseToken_Simple(&data, false, false, true);
3343 //scroll_t = atof(com_token);
3344 COM_ParseToken_Simple(&data, false, false, true);
3345 //rotate = atof(com_token);
3346 COM_ParseToken_Simple(&data, false, false, true);
3347 //scale_s = atof(com_token);
3348 COM_ParseToken_Simple(&data, false, false, true);
3349 //scale_t = atof(com_token);
3350 TriangleNormal(point[0], point[1], point[2], planenormal);
3351 VectorNormalizeDouble(planenormal);
3352 planedist = DotProduct(point[0], planenormal);
3353 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
3363 #define MAX_PORTALPOINTS 64
3365 typedef struct portal_s
3368 mnode_t *nodes[2]; // [0] = front side of plane
3369 struct portal_s *next[2];
3371 double points[3*MAX_PORTALPOINTS];
3372 struct portal_s *chain; // all portals are linked into a list
3376 static memexpandablearray_t portalarray;
3378 static void Mod_BSP_RecursiveRecalcNodeBBox(mnode_t *node)
3380 // process only nodes (leafs already had their box calculated)
3384 // calculate children first
3385 Mod_BSP_RecursiveRecalcNodeBBox(node->children[0]);
3386 Mod_BSP_RecursiveRecalcNodeBBox(node->children[1]);
3388 // make combined bounding box from children
3389 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
3390 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
3391 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
3392 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
3393 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
3394 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
3397 static void Mod_BSP_FinalizePortals(void)
3399 int i, j, numportals, numpoints, portalindex, portalrange = (int)Mem_ExpandableArray_IndexRange(&portalarray);
3403 mleaf_t *leaf, *endleaf;
3405 // tally up portal and point counts and recalculate bounding boxes for all
3406 // leafs (because qbsp is very sloppy)
3407 leaf = loadmodel->brush.data_leafs;
3408 endleaf = leaf + loadmodel->brush.num_leafs;
3409 if (mod_recalculatenodeboxes.integer)
3411 for (;leaf < endleaf;leaf++)
3413 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
3414 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
3419 for (portalindex = 0;portalindex < portalrange;portalindex++)
3421 p = (portal_t*)Mem_ExpandableArray_RecordAtIndex(&portalarray, portalindex);
3424 // note: this check must match the one below or it will usually corrupt memory
3425 // 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
3426 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
3429 numpoints += p->numpoints * 2;
3432 loadmodel->brush.data_portals = (mportal_t *)Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
3433 loadmodel->brush.num_portals = numportals;
3434 loadmodel->brush.data_portalpoints = (mvertex_t *)((unsigned char *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
3435 loadmodel->brush.num_portalpoints = numpoints;
3436 // clear all leaf portal chains
3437 for (i = 0;i < loadmodel->brush.num_leafs;i++)
3438 loadmodel->brush.data_leafs[i].portals = NULL;
3439 // process all portals in the global portal chain, while freeing them
3440 portal = loadmodel->brush.data_portals;
3441 point = loadmodel->brush.data_portalpoints;
3442 for (portalindex = 0;portalindex < portalrange;portalindex++)
3444 p = (portal_t*)Mem_ExpandableArray_RecordAtIndex(&portalarray, portalindex);
3447 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1])
3449 // note: this check must match the one above or it will usually corrupt memory
3450 // 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
3451 if (((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
3453 // first make the back to front portal(forward portal)
3454 portal->points = point;
3455 portal->numpoints = p->numpoints;
3456 portal->plane.dist = p->plane.dist;
3457 VectorCopy(p->plane.normal, portal->plane.normal);
3458 portal->here = (mleaf_t *)p->nodes[1];
3459 portal->past = (mleaf_t *)p->nodes[0];
3461 for (j = 0;j < portal->numpoints;j++)
3463 VectorCopy(p->points + j*3, point->position);
3466 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
3467 PlaneClassify(&portal->plane);
3469 // link into leaf's portal chain
3470 portal->next = portal->here->portals;
3471 portal->here->portals = portal;
3473 // advance to next portal
3476 // then make the front to back portal(backward portal)
3477 portal->points = point;
3478 portal->numpoints = p->numpoints;
3479 portal->plane.dist = -p->plane.dist;
3480 VectorNegate(p->plane.normal, portal->plane.normal);
3481 portal->here = (mleaf_t *)p->nodes[0];
3482 portal->past = (mleaf_t *)p->nodes[1];
3484 for (j = portal->numpoints - 1;j >= 0;j--)
3486 VectorCopy(p->points + j*3, point->position);
3489 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
3490 PlaneClassify(&portal->plane);
3492 // link into leaf's portal chain
3493 portal->next = portal->here->portals;
3494 portal->here->portals = portal;
3496 // advance to next portal
3499 // add the portal's polygon points to the leaf bounding boxes
3500 if (mod_recalculatenodeboxes.integer)
3502 for (i = 0;i < 2;i++)
3504 leaf = (mleaf_t *)p->nodes[i];
3505 for (j = 0;j < p->numpoints;j++)
3507 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
3508 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
3509 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
3510 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
3511 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
3512 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
3518 // now recalculate the node bounding boxes from the leafs
3519 if (mod_recalculatenodeboxes.integer)
3520 Mod_BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes + loadmodel->brushq1.hulls[0].firstclipnode);
3528 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
3531 Host_Error("AddPortalToNodes: NULL front node");
3533 Host_Error("AddPortalToNodes: NULL back node");
3534 if (p->nodes[0] || p->nodes[1])
3535 Host_Error("AddPortalToNodes: already included");
3536 // 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
3538 p->nodes[0] = front;
3539 p->next[0] = (portal_t *)front->portals;
3540 front->portals = (mportal_t *)p;
3543 p->next[1] = (portal_t *)back->portals;
3544 back->portals = (mportal_t *)p;
3549 RemovePortalFromNode
3552 static void RemovePortalFromNodes(portal_t *portal)
3556 void **portalpointer;
3558 for (i = 0;i < 2;i++)
3560 node = portal->nodes[i];
3562 portalpointer = (void **) &node->portals;
3565 t = (portal_t *)*portalpointer;
3567 Host_Error("RemovePortalFromNodes: portal not in leaf");
3571 if (portal->nodes[0] == node)
3573 *portalpointer = portal->next[0];
3574 portal->nodes[0] = NULL;
3576 else if (portal->nodes[1] == node)
3578 *portalpointer = portal->next[1];
3579 portal->nodes[1] = NULL;
3582 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
3586 if (t->nodes[0] == node)
3587 portalpointer = (void **) &t->next[0];
3588 else if (t->nodes[1] == node)
3589 portalpointer = (void **) &t->next[1];
3591 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
3596 #define PORTAL_DIST_EPSILON (1.0 / 32.0)
3597 static double *portalpointsbuffer;
3598 static int portalpointsbufferoffset;
3599 static int portalpointsbuffersize;
3600 static void Mod_BSP_RecursiveNodePortals(mnode_t *node)
3603 mnode_t *front, *back, *other_node;
3604 mplane_t clipplane, *plane;
3605 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
3606 int numfrontpoints, numbackpoints;
3607 double *frontpoints, *backpoints;
3609 // if a leaf, we're done
3613 // get some space for our clipping operations to use
3614 if (portalpointsbuffersize < portalpointsbufferoffset + 6*MAX_PORTALPOINTS)
3616 portalpointsbuffersize = portalpointsbufferoffset * 2;
3617 portalpointsbuffer = (double *)Mem_Realloc(loadmodel->mempool, portalpointsbuffer, portalpointsbuffersize * sizeof(*portalpointsbuffer));
3619 frontpoints = portalpointsbuffer + portalpointsbufferoffset;
3620 portalpointsbufferoffset += 3*MAX_PORTALPOINTS;
3621 backpoints = portalpointsbuffer + portalpointsbufferoffset;
3622 portalpointsbufferoffset += 3*MAX_PORTALPOINTS;
3624 plane = node->plane;
3626 front = node->children[0];
3627 back = node->children[1];
3629 Host_Error("Mod_BSP_RecursiveNodePortals: corrupt node hierarchy");
3631 // create the new portal by generating a polygon for the node plane,
3632 // and clipping it by all of the other portals(which came from nodes above this one)
3633 nodeportal = (portal_t *)Mem_ExpandableArray_AllocRecord(&portalarray);
3634 nodeportal->plane = *plane;
3636 // 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)
3637 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);
3638 nodeportal->numpoints = 4;
3640 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
3642 clipplane = portal->plane;
3643 if (portal->nodes[0] == portal->nodes[1])
3644 Host_Error("Mod_BSP_RecursiveNodePortals: portal has same node on both sides(1)");
3645 if (portal->nodes[0] == node)
3647 else if (portal->nodes[1] == node)
3649 clipplane.dist = -clipplane.dist;
3650 VectorNegate(clipplane.normal, clipplane.normal);
3655 Host_Error("Mod_BSP_RecursiveNodePortals: mislinked portal");
3656 side = 0; // hush warning
3659 for (i = 0;i < nodeportal->numpoints*3;i++)
3660 frontpoints[i] = nodeportal->points[i];
3661 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);
3662 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
3666 if (nodeportal->numpoints < 3)
3668 Con_Print(CON_WARN "Mod_BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
3669 nodeportal->numpoints = 0;
3671 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
3673 Con_Print(CON_WARN "Mod_BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
3674 nodeportal->numpoints = 0;
3677 AddPortalToNodes(nodeportal, front, back);
3679 // split the portals of this node along this node's plane and assign them to the children of this node
3680 // (migrating the portals downward through the tree)
3681 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
3683 if (portal->nodes[0] == portal->nodes[1])
3684 Host_Error("Mod_BSP_RecursiveNodePortals: portal has same node on both sides(2)");
3685 if (portal->nodes[0] == node)
3687 else if (portal->nodes[1] == node)
3691 Host_Error("Mod_BSP_RecursiveNodePortals: mislinked portal");
3692 side = 0; // hush warning
3694 nextportal = portal->next[side];
3695 if (!portal->numpoints)
3698 other_node = portal->nodes[!side];
3699 RemovePortalFromNodes(portal);
3701 // cut the portal into two portals, one on each side of the node plane
3702 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);
3704 if (!numfrontpoints)
3707 AddPortalToNodes(portal, back, other_node);
3709 AddPortalToNodes(portal, other_node, back);
3715 AddPortalToNodes(portal, front, other_node);
3717 AddPortalToNodes(portal, other_node, front);
3721 // the portal is split
3722 splitportal = (portal_t *)Mem_ExpandableArray_AllocRecord(&portalarray);
3723 temp = splitportal->chain;
3724 *splitportal = *portal;
3725 splitportal->chain = temp;
3726 for (i = 0;i < numbackpoints*3;i++)
3727 splitportal->points[i] = backpoints[i];
3728 splitportal->numpoints = numbackpoints;
3729 for (i = 0;i < numfrontpoints*3;i++)
3730 portal->points[i] = frontpoints[i];
3731 portal->numpoints = numfrontpoints;
3735 AddPortalToNodes(portal, front, other_node);
3736 AddPortalToNodes(splitportal, back, other_node);
3740 AddPortalToNodes(portal, other_node, front);
3741 AddPortalToNodes(splitportal, other_node, back);
3745 Mod_BSP_RecursiveNodePortals(front);
3746 Mod_BSP_RecursiveNodePortals(back);
3748 portalpointsbufferoffset -= 6*MAX_PORTALPOINTS;
3751 static void Mod_BSP_MakePortals(void)
3753 Mem_ExpandableArray_NewArray(&portalarray, loadmodel->mempool, sizeof(portal_t), 1020*1024/sizeof(portal_t));
3754 portalpointsbufferoffset = 0;
3755 portalpointsbuffersize = 6*MAX_PORTALPOINTS*128;
3756 portalpointsbuffer = (double *)Mem_Alloc(loadmodel->mempool, portalpointsbuffersize * sizeof(*portalpointsbuffer));
3757 Mod_BSP_RecursiveNodePortals(loadmodel->brush.data_nodes + loadmodel->brushq1.hulls[0].firstclipnode);
3758 Mem_Free(portalpointsbuffer);
3759 portalpointsbuffer = NULL;
3760 portalpointsbufferoffset = 0;
3761 portalpointsbuffersize = 0;
3762 Mod_BSP_FinalizePortals();
3763 Mem_ExpandableArray_FreeArray(&portalarray);
3766 //Returns PVS data for a given point
3767 //(note: can return NULL)
3768 static unsigned char *Mod_BSP_GetPVS(model_t *model, const vec3_t p)
3771 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
3773 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
3774 if (((mleaf_t *)node)->clusterindex >= 0)
3775 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3780 static void Mod_BSP_FatPVS_RecursiveBSPNode(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
3784 float d = PlaneDiff(org, node->plane);
3786 node = node->children[0];
3787 else if (d < -radius)
3788 node = node->children[1];
3791 // go down both sides
3792 Mod_BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
3793 node = node->children[1];
3796 // if this leaf is in a cluster, accumulate the pvs bits
3797 if (((mleaf_t *)node)->clusterindex >= 0)
3800 unsigned char *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3801 for (i = 0;i < pvsbytes;i++)
3802 pvsbuffer[i] |= pvs[i];
3806 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
3807 //of the given point.
3808 static int Mod_BSP_FatPVS(model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength, qbool merge)
3810 int bytes = model->brush.num_pvsclusterbytes;
3811 bytes = min(bytes, pvsbufferlength);
3812 if (r_novis.integer || r_trippy.integer || !model->brush.num_pvsclusters || !Mod_BSP_GetPVS(model, org))
3814 memset(pvsbuffer, 0xFF, bytes);
3818 memset(pvsbuffer, 0, bytes);
3819 Mod_BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
3823 static void Mod_Q1BSP_RoundUpToHullSize(model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
3828 VectorSubtract(inmaxs, inmins, size);
3829 if (cmodel->brush.ishlbsp)
3832 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3833 else if (size[0] <= 32)
3835 if (size[2] < 54) // pick the nearest of 36 or 72
3836 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
3838 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
3841 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
3846 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3847 else if (size[0] <= 32)
3848 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
3850 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
3852 VectorCopy(inmins, outmins);
3853 VectorAdd(inmins, hull->clip_size, outmaxs);
3856 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);
3858 void Mod_2PSB_Load(model_t *mod, void *buffer, void *bufferend)
3860 mod->brush.isbsp2 = true;
3861 mod->brush.isbsp2rmqe = true; // like bsp2 except leaf/node bounds are 16bit (unexpanded)
3862 mod->modeldatatypestring = "Q1BSP2rmqe";
3863 Mod_Q1BSP_Load(mod, buffer, bufferend);
3866 void Mod_BSP2_Load(model_t *mod, void *buffer, void *bufferend)
3868 mod->brush.isbsp2 = true;
3869 mod->modeldatatypestring = "Q1BSP2";
3870 Mod_Q1BSP_Load(mod, buffer, bufferend);
3873 void Mod_HLBSP_Load(model_t *mod, void *buffer, void *bufferend)
3875 mod->brush.ishlbsp = true;
3876 mod->modeldatatypestring = "HLBSP";
3877 Mod_Q1BSP_Load(mod, buffer, bufferend);
3880 void Mod_Q1BSP_Load(model_t *mod, void *buffer, void *bufferend)
3883 sizebuf_t lumpsb[HEADER_LUMPS];
3885 float dist, modelyawradius, modelradius;
3886 msurface_t *surface;
3887 hullinfo_t hullinfo;
3888 int totalstylesurfaces, totalstyles, stylecounts[256], remapstyles[256];
3889 model_brush_lightstyleinfo_t styleinfo[256];
3890 unsigned char *datapointer;
3893 MSG_InitReadBuffer(&sb, (unsigned char *)buffer, (unsigned char *)bufferend - (unsigned char *)buffer);
3895 mod->type = mod_brushq1;
3897 mod->brush.skymasking = true;
3898 i = MSG_ReadLittleLong(&sb);
3900 if(!mod->modeldatatypestring)
3901 mod->modeldatatypestring = "Q1BSP";
3903 // fill in hull info
3904 VectorClear (hullinfo.hullsizes[0][0]);
3905 VectorClear (hullinfo.hullsizes[0][1]);
3906 if (mod->brush.ishlbsp)
3908 hullinfo.filehulls = 4;
3909 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
3910 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
3911 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
3912 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
3913 VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
3914 VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
3918 hullinfo.filehulls = 4;
3919 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
3920 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
3921 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
3922 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
3926 for (i = 0; i < HEADER_LUMPS; i++)
3928 int offset = MSG_ReadLittleLong(&sb);
3929 int size = MSG_ReadLittleLong(&sb);
3930 if (offset < 0 || offset + size > sb.cursize)
3931 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);
3932 MSG_InitReadBuffer(&lumpsb[i], sb.data + offset, size);
3935 mod->soundfromcenter = true;
3936 mod->TraceBox = Mod_Q1BSP_TraceBox;
3937 mod->TraceLine = Mod_Q1BSP_TraceLine;
3938 mod->TracePoint = Mod_Q1BSP_TracePoint;
3939 mod->PointSuperContents = Mod_Q1BSP_PointSuperContents;
3940 mod->TraceLineAgainstSurfaces = Mod_Q1BSP_TraceLineAgainstSurfaces;
3941 mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
3942 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3943 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3944 mod->brush.GetPVS = Mod_BSP_GetPVS;
3945 mod->brush.FatPVS = Mod_BSP_FatPVS;
3946 mod->brush.BoxTouchingPVS = Mod_BSP_BoxTouchingPVS;
3947 mod->brush.BoxTouchingLeafPVS = Mod_BSP_BoxTouchingLeafPVS;
3948 mod->brush.BoxTouchingVisibleLeafs = Mod_BSP_BoxTouchingVisibleLeafs;
3949 mod->brush.FindBoxClusters = Mod_BSP_FindBoxClusters;
3950 mod->brush.LightPoint = Mod_BSP_LightPoint;
3951 mod->brush.FindNonSolidLocation = Mod_BSP_FindNonSolidLocation;
3952 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3953 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3954 mod->brush.PointInLeaf = Mod_BSP_PointInLeaf;
3955 mod->Draw = R_Mod_Draw;
3956 mod->DrawDepth = R_Mod_DrawDepth;
3957 mod->DrawDebug = R_Mod_DrawDebug;
3958 mod->DrawPrepass = R_Mod_DrawPrepass;
3959 mod->GetLightInfo = R_Mod_GetLightInfo;
3960 mod->CompileShadowMap = R_Mod_CompileShadowMap;
3961 mod->DrawShadowMap = R_Mod_DrawShadowMap;
3962 mod->DrawLight = R_Mod_DrawLight;
3966 mod->brush.qw_md4sum = 0;
3967 mod->brush.qw_md4sum2 = 0;
3968 for (i = 0;i < HEADER_LUMPS;i++)
3971 if (i == LUMP_ENTITIES)
3973 temp = Com_BlockChecksum(lumpsb[i].data, lumpsb[i].cursize);
3974 mod->brush.qw_md4sum ^= LittleLong(temp);
3975 if (i == LUMP_VISIBILITY || i == LUMP_LEAFS || i == LUMP_NODES)
3977 mod->brush.qw_md4sum2 ^= LittleLong(temp);
3980 Mod_Q1BSP_LoadEntities(&lumpsb[LUMP_ENTITIES]);
3981 Mod_Q1BSP_LoadVertexes(&lumpsb[LUMP_VERTEXES]);
3982 Mod_Q1BSP_LoadEdges(&lumpsb[LUMP_EDGES]);
3983 Mod_Q1BSP_LoadSurfedges(&lumpsb[LUMP_SURFEDGES]);
3984 Mod_Q1BSP_LoadTextures(&lumpsb[LUMP_TEXTURES]);
3985 Mod_Q1BSP_LoadLighting(&lumpsb[LUMP_LIGHTING]);
3986 Mod_Q1BSP_LoadPlanes(&lumpsb[LUMP_PLANES]);
3987 Mod_Q1BSP_LoadTexinfo(&lumpsb[LUMP_TEXINFO]);
3988 Mod_Q1BSP_LoadFaces(&lumpsb[LUMP_FACES]);
3989 Mod_Q1BSP_LoadLeaffaces(&lumpsb[LUMP_MARKSURFACES]);
3990 Mod_Q1BSP_LoadVisibility(&lumpsb[LUMP_VISIBILITY]);
3991 // load submodels before leafs because they contain the number of vis leafs
3992 Mod_BSP_LoadSubmodels(&lumpsb[LUMP_MODELS], &hullinfo);
3993 Mod_Q1BSP_LoadLeafs(&lumpsb[LUMP_LEAFS]);
3994 Mod_Q1BSP_LoadNodes(&lumpsb[LUMP_NODES]);
3995 Mod_Q1BSP_LoadClipnodes(&lumpsb[LUMP_CLIPNODES], &hullinfo);
3997 for (i = 0; i < HEADER_LUMPS; i++)
3998 if (lumpsb[i].readcount != lumpsb[i].cursize && i != LUMP_TEXTURES && i != LUMP_LIGHTING)
3999 Host_Error("Lump %i incorrectly loaded (readcount %i, size %i)\n", i, lumpsb[i].readcount, lumpsb[i].cursize);
4001 // check if the map supports transparent water rendering
4002 loadmodel->brush.supportwateralpha = Mod_Q1BSP_CheckWaterAlphaSupport();
4004 // we don't need the compressed pvs data anymore
4005 if (mod->brushq1.data_compressedpvs)
4006 Mem_Free(mod->brushq1.data_compressedpvs);
4007 mod->brushq1.data_compressedpvs = NULL;
4008 mod->brushq1.num_compressedpvs = 0;
4010 Mod_Q1BSP_MakeHull0();
4011 if (mod_bsp_portalize.integer)
4012 Mod_BSP_MakePortals();
4014 mod->numframes = 2; // regular and alternate animation
4017 if (loadmodel->brush.numsubmodels)
4018 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
4020 // LadyHavoc: to clear the fog around the original quake submodel code, I
4022 // first of all, some background info on the submodels:
4023 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
4024 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
4025 // now the weird for loop itself:
4026 // the loop functions in an odd way, on each iteration it sets up the
4027 // current 'mod' model (which despite the confusing code IS the model of
4028 // the number i), at the end of the loop it duplicates the model to become
4029 // the next submodel, and loops back to set up the new submodel.
4031 // LadyHavoc: now the explanation of my sane way (which works identically):
4032 // set up the world model, then on each submodel copy from the world model
4033 // and set up the submodel with the respective model info.
4034 totalstylesurfaces = 0;
4036 for (i = 0;i < mod->brush.numsubmodels;i++)
4038 memset(stylecounts, 0, sizeof(stylecounts));
4039 for (k = 0;k < mod->brushq1.submodels[i].numfaces;k++)
4041 surface = mod->data_surfaces + mod->brushq1.submodels[i].firstface + k;
4042 for (j = 0;j < MAXLIGHTMAPS;j++)
4043 stylecounts[surface->lightmapinfo->styles[j]]++;
4045 for (k = 0;k < 255;k++)
4049 totalstylesurfaces += stylecounts[k];
4052 datapointer = (unsigned char *)Mem_Alloc(mod->mempool, mod->num_surfaces * sizeof(int) + totalstyles * sizeof(model_brush_lightstyleinfo_t) + totalstylesurfaces * sizeof(int *));
4053 mod->modelsurfaces_sorted = (int*)datapointer;datapointer += mod->num_surfaces * sizeof(int);
4054 for (i = 0;i < mod->brush.numsubmodels;i++)
4056 // LadyHavoc: this code was originally at the end of this loop, but
4057 // has been transformed to something more readable at the start here.
4062 // duplicate the basic information
4063 dpsnprintf(name, sizeof(name), "*%i", i);
4064 mod = Mod_FindName(name, loadmodel->name);
4065 // copy the base model to this one
4067 // rename the clone back to its proper name
4068 strlcpy(mod->name, name, sizeof(mod->name));
4069 mod->brush.parentmodel = loadmodel;
4070 // textures and memory belong to the main model
4071 mod->texturepool = NULL;
4072 mod->mempool = NULL;
4073 mod->brush.GetPVS = NULL;
4074 mod->brush.FatPVS = NULL;
4075 mod->brush.BoxTouchingPVS = NULL;
4076 mod->brush.BoxTouchingLeafPVS = NULL;
4077 mod->brush.BoxTouchingVisibleLeafs = NULL;
4078 mod->brush.FindBoxClusters = NULL;
4079 mod->brush.LightPoint = NULL;
4080 mod->brush.AmbientSoundLevelsForPoint = NULL;
4083 mod->brush.submodel = i;
4085 if (loadmodel->brush.submodels)
4086 loadmodel->brush.submodels[i] = mod;
4088 bm = &mod->brushq1.submodels[i];
4090 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
4091 for (j=1 ; j<MAX_MAP_HULLS ; j++)
4093 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
4094 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
4097 mod->submodelsurfaces_start = bm->firstface;
4098 mod->submodelsurfaces_end = bm->firstface + bm->numfaces;
4100 // set node/leaf parents for this submodel
4101 Mod_BSP_LoadNodes_RecursiveSetParent(mod->brush.data_nodes + mod->brushq1.hulls[0].firstclipnode, NULL);
4103 // this has to occur after hull info has been set, as it uses Mod_Q1BSP_PointSuperContents
4104 Mod_Q1BSP_AssignNoShadowSkySurfaces(mod);
4106 // copy the submodel bounds, then enlarge the yaw and rotated bounds according to radius
4107 // (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)
4108 VectorCopy(bm->mins, mod->normalmins);
4109 VectorCopy(bm->maxs, mod->normalmaxs);
4110 dist = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
4111 modelyawradius = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
4112 modelyawradius = dist*dist+modelyawradius*modelyawradius;
4113 modelradius = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
4114 modelradius = modelyawradius + modelradius * modelradius;
4115 modelyawradius = sqrt(modelyawradius);
4116 modelradius = sqrt(modelradius);
4117 mod->yawmins[0] = mod->yawmins[1] = -modelyawradius;
4118 mod->yawmins[2] = mod->normalmins[2];
4119 mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius;
4120 mod->yawmaxs[2] = mod->normalmaxs[2];
4121 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
4122 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
4123 mod->radius = modelradius;
4124 mod->radius2 = modelradius * modelradius;
4126 Mod_SetDrawSkyAndWater(mod);
4128 if (mod->submodelsurfaces_start < mod->submodelsurfaces_end)
4130 // build lightstyle update chains
4131 // (used to rapidly mark lightmapupdateflags on many surfaces
4132 // when d_lightstylevalue changes)
4133 memset(stylecounts, 0, sizeof(stylecounts));
4134 for (k = mod->submodelsurfaces_start;k < mod->submodelsurfaces_end;k++)
4135 for (j = 0;j < MAXLIGHTMAPS;j++)
4136 stylecounts[mod->data_surfaces[k].lightmapinfo->styles[j]]++;
4137 mod->brushq1.num_lightstyles = 0;
4138 for (k = 0;k < 255;k++)
4142 styleinfo[mod->brushq1.num_lightstyles].style = k;
4143 styleinfo[mod->brushq1.num_lightstyles].value = 0;
4144 styleinfo[mod->brushq1.num_lightstyles].numsurfaces = 0;
4145 styleinfo[mod->brushq1.num_lightstyles].surfacelist = (int *)datapointer;datapointer += stylecounts[k] * sizeof(int);
4146 remapstyles[k] = mod->brushq1.num_lightstyles;
4147 mod->brushq1.num_lightstyles++;
4150 for (k = mod->submodelsurfaces_start;k < mod->submodelsurfaces_end;k++)
4152 surface = mod->data_surfaces + k;
4153 for (j = 0;j < MAXLIGHTMAPS;j++)
4155 if (surface->lightmapinfo->styles[j] != 255)
4157 int r = remapstyles[surface->lightmapinfo->styles[j]];
4158 styleinfo[r].surfacelist[styleinfo[r].numsurfaces++] = k;
4162 mod->brushq1.data_lightstyleinfo = (model_brush_lightstyleinfo_t *)datapointer;datapointer += mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t);
4163 memcpy(mod->brushq1.data_lightstyleinfo, styleinfo, mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t));
4167 // LadyHavoc: empty submodel(lacrima.bsp has such a glitch)
4168 Con_Printf(CON_WARN "warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
4170 //mod->brushq1.num_visleafs = bm->visleafs;
4172 // build a Bounding Interval Hierarchy for culling triangles in light rendering
4173 Mod_MakeCollisionBIH(mod, true, &mod->render_bih);
4175 if (mod_q1bsp_polygoncollisions.integer)
4177 mod->collision_bih = mod->render_bih;
4178 // point traces and contents checks still use the bsp tree
4179 mod->TraceLine = Mod_CollisionBIH_TraceLine;
4180 mod->TraceBox = Mod_CollisionBIH_TraceBox;
4181 mod->TraceBrush = Mod_CollisionBIH_TraceBrush;
4182 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLineAgainstSurfaces;
4185 // generate VBOs and other shared data before cloning submodels
4189 Mod_Q1BSP_LoadMapBrushes();
4190 //Mod_Q1BSP_ProcessLightList();
4195 // make the model surface list (used by shadowing/lighting)
4196 Mod_MakeSortedSurfaces(loadmodel);
4198 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);
4201 int Mod_Q2BSP_SuperContentsFromNativeContents(int nativecontents)
4203 int supercontents = 0;
4204 if (nativecontents & CONTENTSQ2_SOLID)
4205 supercontents |= SUPERCONTENTS_SOLID;
4206 if (nativecontents & CONTENTSQ2_WATER)
4207 supercontents |= SUPERCONTENTS_WATER;
4208 if (nativecontents & CONTENTSQ2_SLIME)
4209 supercontents |= SUPERCONTENTS_SLIME;
4210 if (nativecontents & CONTENTSQ2_LAVA)
4211 supercontents |= SUPERCONTENTS_LAVA;
4212 if (nativecontents & CONTENTSQ2_MONSTER)
4213 supercontents |= SUPERCONTENTS_BODY;
4214 if (nativecontents & CONTENTSQ2_DEADMONSTER)
4215 supercontents |= SUPERCONTENTS_CORPSE;
4216 if (nativecontents & CONTENTSQ2_PLAYERCLIP)
4217 supercontents |= SUPERCONTENTS_PLAYERCLIP;
4218 if (nativecontents & CONTENTSQ2_MONSTERCLIP)
4219 supercontents |= SUPERCONTENTS_MONSTERCLIP;
4220 if (!(nativecontents & CONTENTSQ2_TRANSLUCENT))
4221 supercontents |= SUPERCONTENTS_OPAQUE;
4222 return supercontents;
4225 int Mod_Q2BSP_NativeContentsFromSuperContents(int supercontents)
4227 int nativecontents = 0;
4228 if (supercontents & SUPERCONTENTS_SOLID)
4229 nativecontents |= CONTENTSQ2_SOLID;
4230 if (supercontents & SUPERCONTENTS_WATER)
4231 nativecontents |= CONTENTSQ2_WATER;
4232 if (supercontents & SUPERCONTENTS_SLIME)
4233 nativecontents |= CONTENTSQ2_SLIME;
4234 if (supercontents & SUPERCONTENTS_LAVA)
4235 nativecontents |= CONTENTSQ2_LAVA;
4236 if (supercontents & SUPERCONTENTS_BODY)
4237 nativecontents |= CONTENTSQ2_MONSTER;
4238 if (supercontents & SUPERCONTENTS_CORPSE)
4239 nativecontents |= CONTENTSQ2_DEADMONSTER;
4240 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
4241 nativecontents |= CONTENTSQ2_PLAYERCLIP;
4242 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
4243 nativecontents |= CONTENTSQ2_MONSTERCLIP;
4244 if (!(supercontents & SUPERCONTENTS_OPAQUE))
4245 nativecontents |= CONTENTSQ2_TRANSLUCENT;
4246 return nativecontents;
4249 static void Mod_Q2BSP_LoadVisibility(sizebuf_t *sb)
4252 loadmodel->brushq1.num_compressedpvs = 0;
4253 loadmodel->brushq1.data_compressedpvs = NULL;
4254 loadmodel->brush.num_pvsclusters = 0;
4255 loadmodel->brush.num_pvsclusterbytes = 0;
4256 loadmodel->brush.data_pvsclusters = NULL;
4261 count = MSG_ReadLittleLong(sb);
4262 loadmodel->brush.num_pvsclusters = count;
4263 loadmodel->brush.num_pvsclusterbytes = (count+7)>>3;
4264 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, count*loadmodel->brush.num_pvsclusterbytes);
4265 for (i = 0;i < count;i++)
4267 int pvsofs = MSG_ReadLittleLong(sb);
4268 /*int phsofs = */MSG_ReadLittleLong(sb);
4269 // decompress the vis data for this cluster
4270 // (note this accesses the underlying data store of sb, which is kind of evil)
4271 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);
4273 // hush the loading error check later - we had to do random access on this lump, so we didn't read to the end
4274 sb->readcount = sb->cursize;
4277 static void Mod_Q2BSP_LoadNodes(sizebuf_t *sb)
4279 int i, j, count, p, child[2];
4281 int structsize = 28;
4283 if (sb->cursize % structsize)
4284 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
4285 count = sb->cursize / structsize;
4287 Host_Error("Mod_Q2BSP_LoadNodes: missing BSP tree in %s",loadmodel->name);
4288 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
4290 loadmodel->brush.data_nodes = out;
4291 loadmodel->brush.num_nodes = count;
4293 for ( i=0 ; i<count ; i++, out++)
4295 p = MSG_ReadLittleLong(sb);
4296 out->plane = loadmodel->brush.data_planes + p;
4297 child[0] = MSG_ReadLittleLong(sb);
4298 child[1] = MSG_ReadLittleLong(sb);
4299 out->mins[0] = MSG_ReadLittleShort(sb);
4300 out->mins[1] = MSG_ReadLittleShort(sb);
4301 out->mins[2] = MSG_ReadLittleShort(sb);
4302 out->maxs[0] = MSG_ReadLittleShort(sb);
4303 out->maxs[1] = MSG_ReadLittleShort(sb);
4304 out->maxs[2] = MSG_ReadLittleShort(sb);
4305 out->firstsurface = (unsigned short)MSG_ReadLittleShort(sb);
4306 out->numsurfaces = (unsigned short)MSG_ReadLittleShort(sb);
4307 if (out->firstsurface + out->numsurfaces > (unsigned int)loadmodel->num_surfaces)
4309 Con_Printf("Mod_Q2BSP_LoadNodes: invalid surface index range %i+%i (file has only %i surfaces)\n", out->firstsurface, out->numsurfaces, loadmodel->num_surfaces);
4310 out->firstsurface = 0;
4311 out->numsurfaces = 0;
4313 for (j=0 ; j<2 ; j++)
4318 if (p < loadmodel->brush.num_nodes)
4319 out->children[j] = loadmodel->brush.data_nodes + p;
4322 Con_Printf("Mod_Q2BSP_LoadNodes: invalid node index %i (file has only %i nodes)\n", p, loadmodel->brush.num_nodes);
4323 // map it to the solid leaf
4324 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
4329 // get leaf index as a positive value starting at 0 (-1 becomes 0, -2 becomes 1, etc)
4331 if (p < loadmodel->brush.num_leafs)
4332 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + p);
4335 Con_Printf("Mod_Q2BSP_LoadNodes: invalid leaf index %i (file has only %i leafs)\n", p, loadmodel->brush.num_leafs);
4336 // map it to the solid leaf
4337 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
4343 Mod_BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
4346 static void Mod_Q2BSP_LoadTexinfo(sizebuf_t *sb)
4350 int structsize = 76;
4351 int maxtextures = 1024; // hardcoded limit of quake2 engine, so we may as well use it as an upper bound
4352 char filename[MAX_QPATH];
4354 if (sb->cursize % structsize)
4355 Host_Error("Mod_Q2BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
4356 count = sb->cursize / structsize;
4357 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4358 loadmodel->brushq1.texinfo = out;
4359 loadmodel->brushq1.numtexinfo = count;
4360 loadmodel->num_texturesperskin = 0;
4361 loadmodel->data_textures = (texture_t*)Mem_Alloc(loadmodel->mempool, maxtextures * sizeof(texture_t));
4363 for (i = 0;i < count;i++, out++)
4366 for (k = 0;k < 2;k++)
4367 for (j = 0;j < 4;j++)
4368 out->vecs[k][j] = MSG_ReadLittleFloat(sb);
4370 out->q2flags = MSG_ReadLittleLong(sb);
4371 out->q2value = MSG_ReadLittleLong(sb);
4372 MSG_ReadBytes(sb, 32, (unsigned char*)out->q2texture);
4373 out->q2texture[31] = 0; // make absolutely sure it is terminated
4374 out->q2nexttexinfo = MSG_ReadLittleLong(sb);
4376 // find an existing match for the texture if possible
4377 dpsnprintf(filename, sizeof(filename), "textures/%s.wal", out->q2texture);
4378 for (j = 0;j < loadmodel->num_texturesperskin;j++)
4379 if (!strcmp(filename, loadmodel->data_textures[j].name)
4380 && out->q2flags == loadmodel->data_textures[j].q2flags
4381 && out->q2value == loadmodel->data_textures[j].q2value)
4383 // if we don't find the texture, store the new texture
4384 if (j == loadmodel->num_texturesperskin)
4386 if (loadmodel->num_texturesperskin < maxtextures)
4388 texture_t *tx = loadmodel->data_textures + j;
4389 int q2flags = out->q2flags;
4390 unsigned char *walfile = NULL;
4391 fs_offset_t walfilesize = 0;
4392 Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, tx, filename, true, true, TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL);
4393 // now read the .wal file to get metadata (even if a .tga was overriding it, we still need the wal data)
4394 walfile = FS_LoadFile(filename, tempmempool, true, &walfilesize);
4398 LoadWAL_GetMetadata(walfile, (int)walfilesize, &w, &h, NULL, NULL, &tx->q2contents, NULL);
4408 tx->q2flags = out->q2flags;
4409 tx->q2value = out->q2value;
4410 // also modify the texture to have the correct contents and such based on flags
4411 // note that we create multiple texture_t structures if q2flags differs
4412 if (q2flags & Q2SURF_LIGHT)
4414 // doesn't mean anything to us
4416 if (q2flags & Q2SURF_SLICK)
4418 // would be nice to support...
4420 if (q2flags & Q2SURF_SKY)
4422 // sky is a rather specific thing
4423 q2flags &= ~Q2SURF_NODRAW; // quake2 had a slightly different meaning than we have in mind here...
4424 tx->basematerialflags = MATERIALFLAG_SKY;
4425 tx->supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP | SUPERCONTENTS_OPAQUE;
4426 tx->surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
4428 if (q2flags & Q2SURF_WARP)
4430 // we use a scroll instead of a warp
4431 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_FULLBRIGHT;
4432 // if it's also transparent, we can enable the WATERSHADER
4433 // but we do not set the WATERALPHA flag because we don't
4434 // want to honor r_wateralpha in q2bsp
4435 // (it would go against the artistic intent)
4436 if (q2flags & (Q2SURF_TRANS33 | Q2SURF_TRANS66))
4437 tx->basematerialflags |= MATERIALFLAG_WATERSHADER;
4439 if (q2flags & Q2SURF_TRANS33)
4441 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED;
4442 tx->basealpha = 1.0f / 3.0f;
4443 tx->supercontents &= ~SUPERCONTENTS_OPAQUE;
4444 if (tx->q2contents & Q2CONTENTS_SOLID)
4445 tx->q2contents = (tx->q2contents & ~Q2CONTENTS_SOLID) | Q2CONTENTS_WINDOW;
4447 if (q2flags & Q2SURF_TRANS66)
4449 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED;
4450 tx->basealpha = 2.0f / 3.0f;
4451 tx->supercontents &= ~SUPERCONTENTS_OPAQUE;
4452 if (tx->q2contents & Q2CONTENTS_SOLID)
4453 tx->q2contents = (tx->q2contents & ~Q2CONTENTS_SOLID) | Q2CONTENTS_WINDOW;
4455 if ((q2flags & Q2SURF_FLOWING) && tx->materialshaderpass != NULL)
4457 tx->materialshaderpass->tcmods[0].tcmod = Q3TCMOD_SCROLL;
4458 if (q2flags & Q2SURF_WARP)
4459 tx->materialshaderpass->tcmods[0].parms[0] = -0.5f;
4461 tx->materialshaderpass->tcmods[0].parms[0] = -1.6f;
4462 tx->materialshaderpass->tcmods[0].parms[1] = 0.0f;
4464 if (q2flags & Q2SURF_ALPHATEST)
4466 // KMQUAKE2 and other modded engines added this flag for lit alpha tested surfaces
4467 tx->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
4469 else if (q2flags & (Q2SURF_TRANS33 | Q2SURF_TRANS66 | Q2SURF_WARP))
4471 if (!mod_q2bsp_littransparentsurfaces.integer)
4472 tx->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
4474 if (q2flags & Q2SURF_NODRAW)
4476 tx->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
4478 if (tx->q2contents & (Q2CONTENTS_TRANSLUCENT | Q2CONTENTS_MONSTERCLIP | Q2CONTENTS_PLAYERCLIP))
4479 tx->q2contents |= Q2CONTENTS_DETAIL;
4480 if (!(tx->q2contents & (Q2CONTENTS_SOLID | Q2CONTENTS_WINDOW | Q2CONTENTS_AUX | Q2CONTENTS_LAVA | Q2CONTENTS_SLIME | Q2CONTENTS_WATER | Q2CONTENTS_MIST | Q2CONTENTS_PLAYERCLIP | Q2CONTENTS_MONSTERCLIP | Q2CONTENTS_MIST)))
4481 tx->q2contents |= Q2CONTENTS_SOLID;
4482 if (tx->q2flags & (Q2SURF_HINT | Q2SURF_SKIP))
4484 tx->supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(tx->q2contents);
4485 // set the current values to the base values
4486 tx->currentframe = tx;
4487 tx->currentskinframe = tx->materialshaderpass != NULL ? tx->materialshaderpass->skinframes[0] : NULL;
4488 tx->currentmaterialflags = tx->basematerialflags;
4489 loadmodel->num_texturesperskin++;
4490 loadmodel->num_textures = loadmodel->num_texturesperskin;
4494 Con_Printf("Mod_Q2BSP_LoadTexinfo: max textures reached (%i)\n", maxtextures);
4495 j = 0; // use first texture and give up
4498 // store the index we found for this texture
4499 out->textureindex = j;
4502 // realloc the textures array now that we know how many we actually need
4503 loadmodel->data_textures = (texture_t*)Mem_Realloc(loadmodel->mempool, loadmodel->data_textures, loadmodel->num_texturesperskin * sizeof(texture_t));
4505 // now assemble the texture chains
4506 // if we encounter the textures out of order, the later ones won't mark the earlier ones in a sequence, so the earlier
4507 for (i = 0, out = loadmodel->brushq1.texinfo;i < count;i++, out++)
4510 texture_t *t = loadmodel->data_textures + out->textureindex;
4511 t->currentframe = t; // fix the reallocated pointer
4513 // if this is not animated, skip it
4514 // if this is already processed, skip it (part of an existing sequence)
4515 if (out->q2nexttexinfo == 0 || t->animated)
4518 // store the array of frames to use
4519 t->animated = 2; // q2bsp animation
4520 t->anim_total[0] = 0;
4521 t->anim_total[1] = 0;
4522 // gather up to 10 frames (we don't support more)
4523 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)
4525 // detect looping and stop there
4526 if (t->anim_total[0] && loadmodel->brushq1.texinfo[j].textureindex == out->textureindex)
4528 t->anim_frames[0][t->anim_total[0]++] = &loadmodel->data_textures[loadmodel->brushq1.texinfo[j].textureindex];
4530 // we could look for the +a sequence here if this is the +0 sequence,
4531 // but it seems that quake2 did not implement that (even though the
4532 // files exist in the baseq2 content)
4534 // write the frame sequence to all the textures involved (just like
4535 // in the q1bsp loader)
4537 // note that this can overwrite the rest of the sequence - so if the
4538 // start of a sequence is found later than the other parts of the
4539 // sequence, it will go back and rewrite them correctly.
4540 for (k = 0;k < t->anim_total[0];k++)
4542 texture_t *txk = t->anim_frames[0][k];
4543 txk->animated = t->animated;
4544 txk->anim_total[0] = t->anim_total[0];
4545 for (l = 0;l < t->anim_total[0];l++)
4546 txk->anim_frames[0][l] = t->anim_frames[0][l];
4551 static void Mod_Q2BSP_LoadLighting(sizebuf_t *sb)
4553 // LadyHavoc: this fits exactly the same format that we use in .lit files
4554 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize);
4555 MSG_ReadBytes(sb, sb->cursize, loadmodel->brushq1.lightdata);
4558 static void Mod_Q2BSP_LoadLeafs(sizebuf_t *sb)
4561 int i, j, count, firstmarksurface, nummarksurfaces, firstmarkbrush, nummarkbrushes;
4562 int structsize = 28;
4564 if (sb->cursize % structsize)
4565 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
4566 count = sb->cursize / structsize;
4567 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
4569 loadmodel->brush.data_leafs = out;
4570 loadmodel->brush.num_leafs = count;
4572 // FIXME: this function could really benefit from some error checking
4573 for ( i=0 ; i<count ; i++, out++)
4575 out->contents = MSG_ReadLittleLong(sb);
4576 out->clusterindex = MSG_ReadLittleShort(sb);
4577 out->areaindex = MSG_ReadLittleShort(sb);
4578 out->mins[0] = MSG_ReadLittleShort(sb);
4579 out->mins[1] = MSG_ReadLittleShort(sb);
4580 out->mins[2] = MSG_ReadLittleShort(sb);
4581 out->maxs[0] = MSG_ReadLittleShort(sb);
4582 out->maxs[1] = MSG_ReadLittleShort(sb);
4583 out->maxs[2] = MSG_ReadLittleShort(sb);
4585 firstmarksurface = (unsigned short)MSG_ReadLittleShort(sb);
4586 nummarksurfaces = (unsigned short)MSG_ReadLittleShort(sb);
4587 firstmarkbrush = (unsigned short)MSG_ReadLittleShort(sb);
4588 nummarkbrushes = (unsigned short)MSG_ReadLittleShort(sb);
4590 for (j = 0;j < 4;j++)
4591 out->ambient_sound_level[j] = 0;
4593 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
4595 Con_Print("Mod_Q2BSP_LoadLeafs: invalid clusterindex\n");
4596 out->clusterindex = -1;
4599 if (firstmarksurface >= 0 && firstmarksurface + nummarksurfaces <= loadmodel->brush.num_leafsurfaces)
4601 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + firstmarksurface;
4602 out->numleafsurfaces = nummarksurfaces;
4606 Con_Printf("Mod_Q2BSP_LoadLeafs: invalid leafsurface range %i:%i outside range %i:%i\n", firstmarksurface, firstmarksurface+nummarksurfaces, 0, loadmodel->brush.num_leafsurfaces);
4607 out->firstleafsurface = NULL;
4608 out->numleafsurfaces = 0;
4611 if (firstmarkbrush >= 0 && firstmarkbrush + nummarkbrushes <= loadmodel->brush.num_leafbrushes)
4613 out->firstleafbrush = loadmodel->brush.data_leafbrushes + firstmarkbrush;
4614 out->numleafbrushes = nummarkbrushes;
4618 Con_Printf("Mod_Q2BSP_LoadLeafs: invalid leafbrush range %i:%i outside range %i:%i\n", firstmarkbrush, firstmarkbrush+nummarkbrushes, 0, loadmodel->brush.num_leafbrushes);
4619 out->firstleafbrush = NULL;
4620 out->numleafbrushes = 0;
4625 static void Mod_Q2BSP_LoadLeafBrushes(sizebuf_t *sb)
4630 if (sb->cursize % structsize)
4631 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
4632 loadmodel->brush.num_leafbrushes = sb->cursize / structsize;
4633 loadmodel->brush.data_leafbrushes = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafbrushes * sizeof(int));
4635 for (i = 0;i < loadmodel->brush.num_leafbrushes;i++)
4637 j = (unsigned short) MSG_ReadLittleShort(sb);
4638 if (j >= loadmodel->brush.num_brushes)
4639 Host_Error("Mod_Q1BSP_LoadLeafBrushes: bad brush number");
4640 loadmodel->brush.data_leafbrushes[i] = j;
4644 static void Mod_Q2BSP_LoadBrushSides(sizebuf_t *sb)
4646 q3mbrushside_t *out;
4650 if (sb->cursize % structsize)
4651 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4652 count = sb->cursize / structsize;
4653 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4655 loadmodel->brush.data_brushsides = out;
4656 loadmodel->brush.num_brushsides = count;
4658 for (i = 0;i < count;i++, out++)
4660 n = (unsigned short)MSG_ReadLittleShort(sb);
4661 if (n < 0 || n >= loadmodel->brush.num_planes)
4662 Host_Error("Mod_Q2BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
4663 out->plane = loadmodel->brush.data_planes + n;
4664 n = MSG_ReadLittleShort(sb);
4667 if (n >= loadmodel->brushq1.numtexinfo)
4668 Host_Error("Mod_Q2BSP_LoadBrushSides: invalid texinfo index %i (%i texinfos)", n, loadmodel->brushq1.numtexinfo);
4669 out->texture = loadmodel->data_textures + loadmodel->brushq1.texinfo[n].textureindex;
4673 //Con_Printf("Mod_Q2BSP_LoadBrushSides: brushside %i has texinfo index %i < 0, changing to generic texture!\n", i, n);
4674 out->texture = &mod_q1bsp_texture_solid;
4679 static void Mod_Q2BSP_LoadBrushes(sizebuf_t *sb)
4682 int i, j, firstside, numsides, contents, count, maxplanes, q3surfaceflags, supercontents;
4683 colplanef_t *planes;
4684 int structsize = 12;
4685 qbool brushmissingtextures;
4686 int numbrushesmissingtextures = 0;
4687 int numcreatedtextures = 0;
4689 if (sb->cursize % structsize)
4690 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4691 count = sb->cursize / structsize;
4692 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4694 loadmodel->brush.data_brushes = out;
4695 loadmodel->brush.num_brushes = count;
4700 for (i = 0; i < count; i++, out++)
4702 firstside = MSG_ReadLittleLong(sb);
4703 numsides = MSG_ReadLittleLong(sb);
4704 contents = MSG_ReadLittleLong(sb);
4705 if (firstside < 0 || firstside + numsides > loadmodel->brush.num_brushsides)
4706 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", firstside, firstside + numsides, loadmodel->brush.num_brushsides);
4708 out->firstbrushside = loadmodel->brush.data_brushsides + firstside;
4709 out->numbrushsides = numsides;
4710 // convert the contents to our values
4711 supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(contents);
4713 // problem: q2bsp brushes have contents but not a texture
4714 // problem: q2bsp brushsides *may* have a texture or may not
4715 // problem: all brushsides and brushes must have a texture for trace_hittexture functionality to work, and the collision code is engineered around this assumption
4716 // solution: nasty hacks
4717 brushmissingtextures = false;
4718 out->texture = NULL;
4719 for (j = 0; j < out->numbrushsides; j++)
4721 if (out->firstbrushside[j].texture == &mod_q1bsp_texture_solid)
4722 brushmissingtextures = true;
4725 // if we can find a matching texture on a brush side we can use it instead of creating one
4726 if (out->firstbrushside[j].texture->supercontents == supercontents)
4727 out->texture = out->firstbrushside[j].texture;
4730 if (brushmissingtextures || out->texture == NULL)
4732 numbrushesmissingtextures++;
4733 // if we didn't find any appropriate texture (matching contents), we'll have to create one
4734 // we could search earlier ones for a matching one but that can be slow
4735 if (out->texture == NULL)
4737 texture_t *validtexture;
4738 validtexture = (texture_t *)Mem_Alloc(loadmodel->mempool, sizeof(texture_t));
4739 dpsnprintf(validtexture->name, sizeof(validtexture->name), "brushcollision%i", numcreatedtextures);
4740 validtexture->surfaceflags = 0;
4741 validtexture->supercontents = supercontents;
4742 numcreatedtextures++;
4743 out->texture = validtexture;
4745 // out->texture now contains a texture with appropriate contents, copy onto any missing sides
4746 for (j = 0; j < out->numbrushsides; j++)
4747 if (out->firstbrushside[j].texture == &mod_q1bsp_texture_solid)
4748 out->firstbrushside[j].texture = out->texture;
4751 // make a colbrush from the brush
4753 // make a list of mplane_t structs to construct a colbrush from
4754 if (maxplanes < out->numbrushsides)
4756 maxplanes = out->numbrushsides;
4759 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
4761 for (j = 0;j < out->numbrushsides;j++)
4763 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4764 planes[j].dist = out->firstbrushside[j].plane->dist;
4765 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
4766 planes[j].texture = out->firstbrushside[j].texture;
4767 q3surfaceflags |= planes[j].q3surfaceflags;
4769 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents, q3surfaceflags, out->texture, true);
4771 // this whole loop can take a while (e.g. on redstarrepublic4)
4772 CL_KeepaliveMessage(false);
4776 if (numcreatedtextures)
4777 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);
4780 static void Mod_Q2BSP_LoadPOP(sizebuf_t *sb)
4782 // 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)
4783 sb->readcount = sb->cursize;
4786 static void Mod_Q2BSP_LoadAreas(sizebuf_t *sb)
4788 // we currently don't use areas, they represent closable doors as vis blockers
4789 sb->readcount = sb->cursize;
4792 static void Mod_Q2BSP_LoadAreaPortals(sizebuf_t *sb)
4794 // we currently don't use areas, they represent closable doors as vis blockers
4795 sb->readcount = sb->cursize;
4798 static void Mod_Q2BSP_FindSubmodelBrushRange_r(model_t *mod, mnode_t *node, int *first, int *last)
4804 Mod_Q2BSP_FindSubmodelBrushRange_r(mod, node->children[0], first, last);
4805 node = node->children[1];
4807 leaf = (mleaf_t*)node;
4808 for (i = 0;i < leaf->numleafbrushes;i++)
4810 int brushnum = leaf->firstleafbrush[i];
4811 if (*first > brushnum)
4813 if (*last < brushnum)
4818 static void Mod_Q2BSP_Load(model_t *mod, void *buffer, void *bufferend)
4821 sizebuf_t lumpsb[Q2HEADER_LUMPS];
4823 float dist, modelyawradius, modelradius;
4824 msurface_t *surface;
4825 int totalstylesurfaces, totalstyles, stylecounts[256], remapstyles[256];
4826 model_brush_lightstyleinfo_t styleinfo[256];
4827 unsigned char *datapointer;
4830 MSG_InitReadBuffer(&sb, (unsigned char *)buffer, (unsigned char *)bufferend - (unsigned char *)buffer);
4832 mod->type = mod_brushq2;
4834 mod->brush.ishlbsp = false;
4835 mod->brush.isbsp2rmqe = false;
4836 mod->brush.isbsp2 = false;
4837 mod->brush.isq2bsp = true; // q1bsp loaders mostly work but we need a few tweaks
4838 mod->brush.isq3bsp = false;
4839 mod->brush.skymasking = true;
4840 mod->modeldatatypestring = "Q2BSP";
4842 i = MSG_ReadLittleLong(&sb);
4843 if (i != Q2BSPMAGIC)
4844 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
4846 i = MSG_ReadLittleLong(&sb);
4847 if (i != Q2BSPVERSION)
4848 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
4851 for (i = 0; i < Q2HEADER_LUMPS; i++)
4853 int offset = MSG_ReadLittleLong(&sb);
4854 int size = MSG_ReadLittleLong(&sb);
4855 if (offset < 0 || offset + size > sb.cursize)
4856 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);
4857 MSG_InitReadBuffer(&lumpsb[i], sb.data + offset, size);
4860 mod->soundfromcenter = true;
4861 mod->TracePoint = Mod_CollisionBIH_TracePoint;
4862 mod->TraceLine = Mod_CollisionBIH_TraceLine;
4863 mod->TraceBox = Mod_CollisionBIH_TraceBox;
4864 mod->TraceBrush = Mod_CollisionBIH_TraceBrush;
4865 mod->PointSuperContents = Mod_CollisionBIH_PointSuperContents;
4866 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
4867 mod->brush.TraceLineOfSight = Mod_Q3BSP_TraceLineOfSight;
4868 mod->brush.SuperContentsFromNativeContents = Mod_Q2BSP_SuperContentsFromNativeContents;
4869 mod->brush.NativeContentsFromSuperContents = Mod_Q2BSP_NativeContentsFromSuperContents;
4870 mod->brush.GetPVS = Mod_BSP_GetPVS;
4871 mod->brush.FatPVS = Mod_BSP_FatPVS;
4872 mod->brush.BoxTouchingPVS = Mod_BSP_BoxTouchingPVS;
4873 mod->brush.BoxTouchingLeafPVS = Mod_BSP_BoxTouchingLeafPVS;
4874 mod->brush.BoxTouchingVisibleLeafs = Mod_BSP_BoxTouchingVisibleLeafs;
4875 mod->brush.FindBoxClusters = Mod_BSP_FindBoxClusters;
4876 mod->brush.LightPoint = Mod_BSP_LightPoint;
4877 mod->brush.FindNonSolidLocation = Mod_BSP_FindNonSolidLocation;
4878 mod->brush.AmbientSoundLevelsForPoint = NULL;
4879 mod->brush.RoundUpToHullSize = NULL;
4880 mod->brush.PointInLeaf = Mod_BSP_PointInLeaf;
4881 mod->Draw = R_Mod_Draw;
4882 mod->DrawDepth = R_Mod_DrawDepth;
4883 mod->DrawDebug = R_Mod_DrawDebug;
4884 mod->DrawPrepass = R_Mod_DrawPrepass;
4885 mod->GetLightInfo = R_Mod_GetLightInfo;
4886 mod->CompileShadowMap = R_Mod_CompileShadowMap;
4887 mod->DrawShadowMap = R_Mod_DrawShadowMap;
4888 mod->DrawLight = R_Mod_DrawLight;
4892 mod->brush.qw_md4sum = 0;
4893 mod->brush.qw_md4sum2 = 0;
4894 for (i = 0;i < Q2HEADER_LUMPS;i++)
4897 if (i == Q2LUMP_ENTITIES)
4899 temp = Com_BlockChecksum(lumpsb[i].data, lumpsb[i].cursize);
4900 mod->brush.qw_md4sum ^= LittleLong(temp);
4901 if (i == Q2LUMP_VISIBILITY || i == Q2LUMP_LEAFS || i == Q2LUMP_NODES)
4903 mod->brush.qw_md4sum2 ^= LittleLong(temp);
4906 // many of these functions are identical to Q1 loaders, so we use those where possible
4907 Mod_Q1BSP_LoadEntities(&lumpsb[Q2LUMP_ENTITIES]);
4908 Mod_Q1BSP_LoadVertexes(&lumpsb[Q2LUMP_VERTEXES]);
4909 Mod_Q1BSP_LoadEdges(&lumpsb[Q2LUMP_EDGES]);
4910 Mod_Q1BSP_LoadSurfedges(&lumpsb[Q2LUMP_SURFEDGES]);
4911 Mod_Q2BSP_LoadLighting(&lumpsb[Q2LUMP_LIGHTING]);
4912 Mod_Q1BSP_LoadPlanes(&lumpsb[Q2LUMP_PLANES]);
4913 Mod_Q2BSP_LoadTexinfo(&lumpsb[Q2LUMP_TEXINFO]);
4914 Mod_Q2BSP_LoadBrushSides(&lumpsb[Q2LUMP_BRUSHSIDES]);
4915 Mod_Q2BSP_LoadBrushes(&lumpsb[Q2LUMP_BRUSHES]);
4916 Mod_Q1BSP_LoadFaces(&lumpsb[Q2LUMP_FACES]);
4917 Mod_Q1BSP_LoadLeaffaces(&lumpsb[Q2LUMP_LEAFFACES]);
4918 Mod_Q2BSP_LoadLeafBrushes(&lumpsb[Q2LUMP_LEAFBRUSHES]);
4919 Mod_Q2BSP_LoadVisibility(&lumpsb[Q2LUMP_VISIBILITY]);
4920 Mod_Q2BSP_LoadPOP(&lumpsb[Q2LUMP_POP]);
4921 Mod_Q2BSP_LoadAreas(&lumpsb[Q2LUMP_AREAS]);
4922 Mod_Q2BSP_LoadAreaPortals(&lumpsb[Q2LUMP_AREAPORTALS]);
4923 Mod_Q2BSP_LoadLeafs(&lumpsb[Q2LUMP_LEAFS]);
4924 Mod_Q2BSP_LoadNodes(&lumpsb[Q2LUMP_NODES]);
4925 Mod_BSP_LoadSubmodels(&lumpsb[Q2LUMP_MODELS], NULL);
4927 for (i = 0; i < Q2HEADER_LUMPS; i++)
4928 if (lumpsb[i].readcount != lumpsb[i].cursize)
4929 Host_Error("Lump %i incorrectly loaded (readcount %i, size %i)\n", i, lumpsb[i].readcount, lumpsb[i].cursize);
4931 // we don't actually set MATERIALFLAG_WATERALPHA on anything, so this
4932 // doesn't enable the cvar, just indicates that transparent water is OK
4933 loadmodel->brush.supportwateralpha = true;
4935 // we don't need the compressed pvs data anymore
4936 if (mod->brushq1.data_compressedpvs)
4937 Mem_Free(mod->brushq1.data_compressedpvs);
4938 mod->brushq1.data_compressedpvs = NULL;
4939 mod->brushq1.num_compressedpvs = 0;
4941 // the MakePortals code works fine on the q2bsp data as well
4942 if (mod_bsp_portalize.integer)
4943 Mod_BSP_MakePortals();
4945 mod->numframes = 0; // q2bsp animations are kind of special, frame is unbounded...
4948 if (loadmodel->brush.numsubmodels)
4949 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
4951 totalstylesurfaces = 0;
4953 for (i = 0;i < mod->brush.numsubmodels;i++)
4955 memset(stylecounts, 0, sizeof(stylecounts));
4956 for (k = 0;k < mod->brushq1.submodels[i].numfaces;k++)
4958 surface = mod->data_surfaces + mod->brushq1.submodels[i].firstface + k;
4959 for (j = 0;j < MAXLIGHTMAPS;j++)
4960 stylecounts[surface->lightmapinfo->styles[j]]++;
4962 for (k = 0;k < 255;k++)
4966 totalstylesurfaces += stylecounts[k];
4969 datapointer = (unsigned char *)Mem_Alloc(mod->mempool, mod->num_surfaces * sizeof(int) + totalstyles * sizeof(model_brush_lightstyleinfo_t) + totalstylesurfaces * sizeof(int *));
4970 mod->modelsurfaces_sorted = (int*)datapointer; datapointer += mod->num_surfaces * sizeof(int);
4971 // set up the world model, then on each submodel copy from the world model
4972 // and set up the submodel with the respective model info.
4974 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
4976 mnode_t *rootnode = NULL;
4977 int firstbrush = loadmodel->brush.num_brushes, lastbrush = 0;
4981 // duplicate the basic information
4982 dpsnprintf(name, sizeof(name), "*%i", i);
4983 mod = Mod_FindName(name, loadmodel->name);
4984 // copy the base model to this one
4986 // rename the clone back to its proper name
4987 strlcpy(mod->name, name, sizeof(mod->name));
4988 mod->brush.parentmodel = loadmodel;
4989 // textures and memory belong to the main model
4990 mod->texturepool = NULL;
4991 mod->mempool = NULL;
4992 mod->brush.GetPVS = NULL;
4993 mod->brush.FatPVS = NULL;
4994 mod->brush.BoxTouchingPVS = NULL;
4995 mod->brush.BoxTouchingLeafPVS = NULL;
4996 mod->brush.BoxTouchingVisibleLeafs = NULL;
4997 mod->brush.FindBoxClusters = NULL;
4998 mod->brush.LightPoint = NULL;
4999 mod->brush.AmbientSoundLevelsForPoint = NULL;
5001 mod->brush.submodel = i;
5002 if (loadmodel->brush.submodels)
5003 loadmodel->brush.submodels[i] = mod;
5005 bm = &mod->brushq1.submodels[i];
5007 // we store the headnode (there's only one in Q2BSP) as if it were the first hull
5008 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
5010 mod->submodelsurfaces_start = bm->firstface;
5011 mod->submodelsurfaces_end = bm->firstface + bm->numfaces;
5013 // set node/leaf parents for this submodel
5014 // note: if the root of this submodel is a leaf (headnode[0] < 0) then there is nothing to do...
5015 // (this happens in base3.bsp)
5016 if (bm->headnode[0] >= 0)
5017 rootnode = mod->brush.data_nodes + bm->headnode[0];
5019 rootnode = (mnode_t*)(mod->brush.data_leafs + -1 - bm->headnode[0]);
5020 Mod_BSP_LoadNodes_RecursiveSetParent(rootnode, NULL);
5022 // make the model surface list (used by shadowing/lighting)
5023 Mod_Q2BSP_FindSubmodelBrushRange_r(mod, rootnode, &firstbrush, &lastbrush);
5024 if (firstbrush <= lastbrush)
5026 mod->firstmodelbrush = firstbrush;
5027 mod->nummodelbrushes = lastbrush + 1 - firstbrush;
5031 mod->firstmodelbrush = 0;
5032 mod->nummodelbrushes = 0;
5035 VectorCopy(bm->mins, mod->normalmins);
5036 VectorCopy(bm->maxs, mod->normalmaxs);
5037 dist = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
5038 modelyawradius = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
5039 modelyawradius = dist*dist+modelyawradius*modelyawradius;
5040 modelradius = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
5041 modelradius = modelyawradius + modelradius * modelradius;
5042 modelyawradius = sqrt(modelyawradius);
5043 modelradius = sqrt(modelradius);
5044 mod->yawmins[0] = mod->yawmins[1] = -modelyawradius;
5045 mod->yawmins[2] = mod->normalmins[2];
5046 mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius;
5047 mod->yawmaxs[2] = mod->normalmaxs[2];
5048 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
5049 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
5050 mod->radius = modelradius;
5051 mod->radius2 = modelradius * modelradius;
5053 Mod_SetDrawSkyAndWater(mod);
5055 // build lightstyle lists for quick marking of dirty lightmaps when lightstyles flicker
5056 if (mod->submodelsurfaces_start < mod->submodelsurfaces_end)
5058 // build lightstyle update chains
5059 // (used to rapidly mark lightmapupdateflags on many surfaces
5060 // when d_lightstylevalue changes)
5061 memset(stylecounts, 0, sizeof(stylecounts));
5062 for (k = mod->submodelsurfaces_start;k < mod->submodelsurfaces_end;k++)
5063 for (j = 0;j < MAXLIGHTMAPS;j++)
5064 stylecounts[mod->data_surfaces[k].lightmapinfo->styles[j]]++;
5065 mod->brushq1.num_lightstyles = 0;
5066 for (k = 0;k < 255;k++)
5070 styleinfo[mod->brushq1.num_lightstyles].style = k;
5071 styleinfo[mod->brushq1.num_lightstyles].value = 0;
5072 styleinfo[mod->brushq1.num_lightstyles].numsurfaces = 0;
5073 styleinfo[mod->brushq1.num_lightstyles].surfacelist = (int *)datapointer;datapointer += stylecounts[k] * sizeof(int);
5074 remapstyles[k] = mod->brushq1.num_lightstyles;
5075 mod->brushq1.num_lightstyles++;
5078 for (k = mod->submodelsurfaces_start;k < mod->submodelsurfaces_end;k++)
5080 surface = mod->data_surfaces + k;
5081 for (j = 0;j < MAXLIGHTMAPS;j++)
5083 if (surface->lightmapinfo->styles[j] != 255)
5085 int r = remapstyles[surface->lightmapinfo->styles[j]];
5086 styleinfo[r].surfacelist[styleinfo[r].numsurfaces++] = k;
5090 mod->brushq1.data_lightstyleinfo = (model_brush_lightstyleinfo_t *)datapointer;datapointer += mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t);
5091 memcpy(mod->brushq1.data_lightstyleinfo, styleinfo, mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t));
5095 Con_Printf(CON_WARN "warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
5097 //mod->brushq1.num_visleafs = bm->visleafs;
5099 // build a Bounding Interval Hierarchy for culling triangles in light rendering
5100 Mod_MakeCollisionBIH(mod, false, &mod->collision_bih);
5102 // build a Bounding Interval Hierarchy for culling brushes in collision detection
5103 Mod_MakeCollisionBIH(mod, true, &mod->render_bih);
5105 // generate VBOs and other shared data before cloning submodels
5111 // make the model surface list (used by shadowing/lighting)
5112 Mod_MakeSortedSurfaces(loadmodel);
5114 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);
5117 static int Mod_Q3BSP_SuperContentsFromNativeContents(int nativecontents);
5118 static int Mod_Q3BSP_NativeContentsFromSuperContents(int supercontents);
5120 static void Mod_Q3BSP_LoadEntities(lump_t *l)
5123 char key[128], value[MAX_INPUTLINE];
5125 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
5126 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
5127 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
5130 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen + 1);
5131 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
5132 loadmodel->brush.entities[l->filelen] = 0;
5133 data = loadmodel->brush.entities;
5134 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
5135 // VorteX: q3map2 FS-R generates tangentspace deluxemaps for q3bsp and sets 'deluxeMaps' key
5136 loadmodel->brushq3.deluxemapping = false;
5137 if (data && COM_ParseToken_Simple(&data, false, false, true) && com_token[0] == '{')
5141 if (!COM_ParseToken_Simple(&data, false, false, true))
5143 if (com_token[0] == '}')
5144 break; // end of worldspawn
5145 if (com_token[0] == '_')
5146 strlcpy(key, com_token + 1, sizeof(key));
5148 strlcpy(key, com_token, sizeof(key));
5149 while (key[strlen(key)-1] == ' ') // remove trailing spaces
5150 key[strlen(key)-1] = 0;
5151 if (!COM_ParseToken_Simple(&data, false, false, true))
5153 strlcpy(value, com_token, sizeof(value));
5154 if (!strcasecmp("gridsize", key)) // this one is case insensitive to 100% match q3map2
5156 #if _MSC_VER >= 1400
5157 #define sscanf sscanf_s
5160 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
5161 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
5163 VectorSet(v, 64, 64, 128);
5164 if(sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) != 3)
5165 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]);
5166 if (v[0] != 0 && v[1] != 0 && v[2] != 0)
5167 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
5170 else if (!strcmp("deluxeMaps", key))
5172 if (!strcmp(com_token, "1"))
5174 loadmodel->brushq3.deluxemapping = true;
5175 loadmodel->brushq3.deluxemapping_modelspace = true;
5177 else if (!strcmp(com_token, "2"))
5179 loadmodel->brushq3.deluxemapping = true;
5180 loadmodel->brushq3.deluxemapping_modelspace = false;
5187 static void Mod_Q3BSP_LoadTextures(lump_t *l)
5193 in = (q3dtexture_t *)(mod_base + l->fileofs);
5194 if (l->filelen % sizeof(*in))
5195 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
5196 count = l->filelen / sizeof(*in);
5197 out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5199 loadmodel->data_textures = out;
5200 loadmodel->num_textures = count;
5201 loadmodel->num_texturesperskin = loadmodel->num_textures;
5203 for (i = 0;i < count;i++)
5205 out[i].surfaceflags = LittleLong(in[i].surfaceflags);
5206 out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(LittleLong(in[i].contents));
5207 Mod_LoadTextureFromQ3Shader(loadmodel->mempool, loadmodel->name, out + i, in[i].name, true, true, TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS, MATERIALFLAG_WALL);
5208 // restore the surfaceflags and supercontents
5209 out[i].surfaceflags = LittleLong(in[i].surfaceflags);
5210 out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(LittleLong(in[i].contents));
5214 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
5220 in = (q3dplane_t *)(mod_base + l->fileofs);
5221 if (l->filelen % sizeof(*in))
5222 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
5223 count = l->filelen / sizeof(*in);
5224 out = (mplane_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5226 loadmodel->brush.data_planes = out;
5227 loadmodel->brush.num_planes = count;
5229 for (i = 0;i < count;i++, in++, out++)
5231 out->normal[0] = LittleFloat(in->normal[0]);
5232 out->normal[1] = LittleFloat(in->normal[1]);
5233 out->normal[2] = LittleFloat(in->normal[2]);
5234 out->dist = LittleFloat(in->dist);
5239 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
5242 q3mbrushside_t *out;
5245 in = (q3dbrushside_t *)(mod_base + l->fileofs);
5246 if (l->filelen % sizeof(*in))
5247 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
5248 count = l->filelen / sizeof(*in);
5249 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5251 loadmodel->brush.data_brushsides = out;
5252 loadmodel->brush.num_brushsides = count;
5254 for (i = 0;i < count;i++, in++, out++)
5256 n = LittleLong(in->planeindex);
5257 if (n < 0 || n >= loadmodel->brush.num_planes)
5258 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5259 out->plane = loadmodel->brush.data_planes + n;
5260 n = LittleLong(in->textureindex);
5261 if (n < 0 || n >= loadmodel->num_textures)
5262 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
5263 out->texture = loadmodel->data_textures + n;
5267 static void Mod_Q3BSP_LoadBrushSides_IG(lump_t *l)
5269 q3dbrushside_ig_t *in;
5270 q3mbrushside_t *out;
5273 in = (q3dbrushside_ig_t *)(mod_base + l->fileofs);
5274 if (l->filelen % sizeof(*in))
5275 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
5276 count = l->filelen / sizeof(*in);
5277 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5279 loadmodel->brush.data_brushsides = out;
5280 loadmodel->brush.num_brushsides = count;
5282 for (i = 0;i < count;i++, in++, out++)
5284 n = LittleLong(in->planeindex);
5285 if (n < 0 || n >= loadmodel->brush.num_planes)
5286 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5287 out->plane = loadmodel->brush.data_planes + n;
5288 n = LittleLong(in->textureindex);
5289 if (n < 0 || n >= loadmodel->num_textures)
5290 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
5291 out->texture = loadmodel->data_textures + n;
5295 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
5299 int i, j, n, c, count, maxplanes, q3surfaceflags;
5300 colplanef_t *planes;
5302 in = (q3dbrush_t *)(mod_base + l->fileofs);
5303 if (l->filelen % sizeof(*in))
5304 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
5305 count = l->filelen / sizeof(*in);
5306 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5308 loadmodel->brush.data_brushes = out;
5309 loadmodel->brush.num_brushes = count;
5314 for (i = 0;i < count;i++, in++, out++)
5316 n = LittleLong(in->firstbrushside);
5317 c = LittleLong(in->numbrushsides);
5318 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
5319 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", n, n + c, loadmodel->brush.num_brushsides);
5320 out->firstbrushside = loadmodel->brush.data_brushsides + n;
5321 out->numbrushsides = c;
5322 n = LittleLong(in->textureindex);
5323 if (n < 0 || n >= loadmodel->num_textures)
5324 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
5325 out->texture = loadmodel->data_textures + n;
5327 // make a list of mplane_t structs to construct a colbrush from
5328 if (maxplanes < out->numbrushsides)
5330 maxplanes = out->numbrushsides;
5333 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
5336 for (j = 0;j < out->numbrushsides;j++)
5338 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
5339 planes[j].dist = out->firstbrushside[j].plane->dist;
5340 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
5341 planes[j].texture = out->firstbrushside[j].texture;
5342 q3surfaceflags |= planes[j].q3surfaceflags;
5344 // make the colbrush from the planes
5345 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents, q3surfaceflags, out->texture, true);
5347 // this whole loop can take a while (e.g. on redstarrepublic4)
5348 CL_KeepaliveMessage(false);
5354 static void Mod_Q3BSP_LoadEffects(lump_t *l)
5360 in = (q3deffect_t *)(mod_base + l->fileofs);
5361 if (l->filelen % sizeof(*in))
5362 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
5363 count = l->filelen / sizeof(*in);
5364 out = (q3deffect_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5366 loadmodel->brushq3.data_effects = out;
5367 loadmodel->brushq3.num_effects = count;
5369 for (i = 0;i < count;i++, in++, out++)
5371 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
5372 n = LittleLong(in->brushindex);
5373 if (n >= loadmodel->brush.num_brushes)
5375 Con_Printf("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes), setting to -1\n", n, loadmodel->brush.num_brushes);
5378 out->brushindex = n;
5379 out->unknown = LittleLong(in->unknown);
5383 static void Mod_Q3BSP_LoadVertices(lump_t *l)
5388 in = (q3dvertex_t *)(mod_base + l->fileofs);
5389 if (l->filelen % sizeof(*in))
5390 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
5391 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
5392 loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 3 + 2 + 2 + 4)));
5393 loadmodel->brushq3.data_normal3f = loadmodel->brushq3.data_vertex3f + count * 3;
5394 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_normal3f + count * 3;
5395 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
5396 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
5398 for (i = 0;i < count;i++, in++)
5400 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
5401 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
5402 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
5403 loadmodel->brushq3.data_normal3f[i * 3 + 0] = LittleFloat(in->normal3f[0]);
5404 loadmodel->brushq3.data_normal3f[i * 3 + 1] = LittleFloat(in->normal3f[1]);
5405 loadmodel->brushq3.data_normal3f[i * 3 + 2] = LittleFloat(in->normal3f[2]);
5406 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
5407 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
5408 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
5409 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
5410 // svector/tvector are calculated later in face loading
5411 if(mod_q3bsp_sRGBlightmaps.integer)
5413 // if lightmaps are sRGB, vertex colors are sRGB too, so we need to linearize them
5414 // note: when this is in use, lightmap color 128 is no longer neutral, but "sRGB half power" is
5415 // working like this may be odd, but matches q3map2 -gamma 2.2
5416 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5418 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
5419 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
5420 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
5421 // we fix the brightness consistently via lightmapscale
5425 loadmodel->brushq3.data_color4f[i * 4 + 0] = Image_LinearFloatFromsRGB(in->color4ub[0]);
5426 loadmodel->brushq3.data_color4f[i * 4 + 1] = Image_LinearFloatFromsRGB(in->color4ub[1]);
5427 loadmodel->brushq3.data_color4f[i * 4 + 2] = Image_LinearFloatFromsRGB(in->color4ub[2]);
5432 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5434 loadmodel->brushq3.data_color4f[i * 4 + 0] = Image_sRGBFloatFromLinear_Lightmap(in->color4ub[0]);
5435 loadmodel->brushq3.data_color4f[i * 4 + 1] = Image_sRGBFloatFromLinear_Lightmap(in->color4ub[1]);
5436 loadmodel->brushq3.data_color4f[i * 4 + 2] = Image_sRGBFloatFromLinear_Lightmap(in->color4ub[2]);
5440 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
5441 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
5442 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
5445 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
5446 if(in->color4ub[0] != 255 || in->color4ub[1] != 255 || in->color4ub[2] != 255)
5447 loadmodel->lit = true;
5451 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
5457 in = (int *)(mod_base + l->fileofs);
5458 if (l->filelen % sizeof(int[3]))
5459 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
5460 count = l->filelen / sizeof(*in);
5462 if(!loadmodel->brushq3.num_vertices)
5465 Con_Printf("Mod_Q3BSP_LoadTriangles: %s has triangles but no vertexes, broken compiler, ignoring problem\n", loadmodel->name);
5466 loadmodel->brushq3.num_triangles = 0;
5470 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5471 loadmodel->brushq3.num_triangles = count / 3;
5472 loadmodel->brushq3.data_element3i = out;
5474 for (i = 0;i < count;i++, in++, out++)
5476 *out = LittleLong(*in);
5477 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
5479 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
5485 static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
5487 q3dlightmap_t *input_pointer;
5505 int mergedrowsxcolumns;
5510 unsigned char *mergedpixels;
5511 unsigned char *mergeddeluxepixels;
5512 unsigned char *mergebuf;
5513 char mapname[MAX_QPATH];
5515 unsigned char *inpixels[10000]; // max count q3map2 can output (it uses 4 digits)
5518 // defaults for q3bsp
5525 loadmodel->brushq3.lightmapsize = 128;
5527 if (cls.state == ca_dedicated)
5530 if(mod_q3bsp_nolightmaps.integer)
5536 // prefer internal LMs for compatibility (a BSP contains no info on whether external LMs exist)
5537 if (developer_loading.integer)
5538 Con_Printf("Using internal lightmaps\n");
5539 input_pointer = (q3dlightmap_t *)(mod_base + l->fileofs);
5540 if (l->filelen % sizeof(*input_pointer))
5541 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
5542 count = l->filelen / sizeof(*input_pointer);
5543 for(i = 0; i < count; ++i)
5544 inpixels[i] = input_pointer[i].rgb;
5548 // no internal lightmaps
5549 // try external lightmaps
5550 FS_StripExtension(loadmodel->name, mapname, sizeof(mapname));
5551 inpixels[0] = loadimagepixelsbgra(va(vabuf, sizeof(vabuf), "%s/lm_%04d", mapname, 0), false, false, false, NULL);
5555 Con_Printf("Using external lightmaps\n");
5557 // using EXTERNAL lightmaps instead
5558 if(image_width != (int) CeilPowerOf2(image_width) || image_width != image_height)
5559 Con_Printf("Mod_Q3BSP_LoadLightmaps: irregularly sized external lightmap in %s",loadmodel->name);
5568 for(count = 1; ; ++count)
5570 inpixels[count] = loadimagepixelsbgra(va(vabuf, sizeof(vabuf), "%s/lm_%04d", mapname, count), false, false, false, NULL);
5571 if(!inpixels[count])
5572 break; // we got all of them
5573 if(image_width != size || image_height != size)
5575 Mem_Free(inpixels[count]);
5576 inpixels[count] = NULL;
5577 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);
5583 loadmodel->brushq3.lightmapsize = size;
5584 loadmodel->brushq3.num_originallightmaps = count;
5586 // now check the surfaces to see if any of them index an odd numbered
5587 // lightmap, if so this is not a deluxemapped bsp file
5589 // also check what lightmaps are actually used, because q3map2 sometimes
5590 // (always?) makes an unused one at the end, which
5591 // q3map2 sometimes (or always?) makes a second blank lightmap for no
5592 // reason when only one lightmap is used, which can throw off the
5593 // deluxemapping detection method, so check 2-lightmap bsp's specifically
5594 // to see if the second lightmap is blank, if so it is not deluxemapped.
5595 // VorteX: autodetect only if previous attempt to find "deluxeMaps" key
5596 // in Mod_Q3BSP_LoadEntities was failed
5597 if (!loadmodel->brushq3.deluxemapping)
5599 loadmodel->brushq3.deluxemapping = !(count & 1);
5600 loadmodel->brushq3.deluxemapping_modelspace = true;
5602 if (loadmodel->brushq3.deluxemapping)
5604 int facecount = faceslump->filelen / sizeof(q3dface_t);
5605 q3dface_t *faces = (q3dface_t *)(mod_base + faceslump->fileofs);
5606 for (i = 0;i < facecount;i++)
5608 j = LittleLong(faces[i].lightmapindex);
5611 endlightmap = max(endlightmap, j + 1);
5612 if ((j & 1) || j + 1 >= count)
5614 loadmodel->brushq3.deluxemapping = false;
5621 // q3map2 sometimes (or always?) makes a second blank lightmap for no
5622 // reason when only one lightmap is used, which can throw off the
5623 // deluxemapping detection method, so check 2-lightmap bsp's specifically
5624 // to see if the second lightmap is blank, if so it is not deluxemapped.
5626 // further research has shown q3map2 sometimes creates a deluxemap and two
5627 // blank lightmaps, which must be handled properly as well
5628 if (endlightmap == 1 && count > 1)
5631 for (i = 0;i < size*size;i++)
5633 if (c[bytesperpixel*i + rgbmap[0]])
5635 if (c[bytesperpixel*i + rgbmap[1]])
5637 if (c[bytesperpixel*i + rgbmap[2]])
5642 // all pixels in the unused lightmap were black...
5643 loadmodel->brushq3.deluxemapping = false;
5648 Con_Printf("%s is %sdeluxemapped\n", loadmodel->name, loadmodel->brushq3.deluxemapping ? "" : "not ");
5650 // figure out what the most reasonable merge power is within limits
5652 // find the appropriate NxN dimensions to merge to, to avoid wasted space
5653 realcount = count >> (int)loadmodel->brushq3.deluxemapping;
5655 // figure out how big the merged texture has to be
5656 mergegoal = 128<<bound(0, mod_q3bsp_lightmapmergepower.integer, 6);
5657 mergegoal = bound(size, mergegoal, (int)vid.maxtexturesize_2d);
5658 while (mergegoal > size && mergegoal * mergegoal / 4 >= size * size * realcount)
5660 mergedwidth = mergegoal;
5661 mergedheight = mergegoal;
5662 // choose non-square size (2x1 aspect) if only half the space is used;
5663 // this really only happens when the entire set fits in one texture, if
5664 // there are multiple textures, we don't worry about shrinking the last
5665 // one to fit, because the driver prefers the same texture size on
5666 // consecutive draw calls...
5667 if (mergedwidth * mergedheight / 2 >= size*size*realcount)
5670 loadmodel->brushq3.num_lightmapmergedwidthpower = 0;
5671 loadmodel->brushq3.num_lightmapmergedheightpower = 0;
5672 while (mergedwidth > size<<loadmodel->brushq3.num_lightmapmergedwidthpower)
5673 loadmodel->brushq3.num_lightmapmergedwidthpower++;
5674 while (mergedheight > size<<loadmodel->brushq3.num_lightmapmergedheightpower)
5675 loadmodel->brushq3.num_lightmapmergedheightpower++;
5676 loadmodel->brushq3.num_lightmapmergedwidthheightdeluxepower = loadmodel->brushq3.num_lightmapmergedwidthpower + loadmodel->brushq3.num_lightmapmergedheightpower + (loadmodel->brushq3.deluxemapping ? 1 : 0);
5678 powerx = loadmodel->brushq3.num_lightmapmergedwidthpower;
5679 powery = loadmodel->brushq3.num_lightmapmergedheightpower;
5680 powerxy = powerx+powery;
5681 powerdxy = loadmodel->brushq3.deluxemapping + powerxy;
5683 mergedcolumns = 1 << powerx;
5684 mergedrows = 1 << powery;
5685 mergedrowsxcolumns = 1 << powerxy;
5687 loadmodel->brushq3.num_mergedlightmaps = (realcount + (1 << powerxy) - 1) >> powerxy;
5688 loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
5689 if (loadmodel->brushq3.deluxemapping)
5690 loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
5692 mergedpixels = (unsigned char *) Mem_Alloc(tempmempool, mergedwidth * mergedheight * 4);
5693 mergeddeluxepixels = loadmodel->brushq3.deluxemapping ? (unsigned char *) Mem_Alloc(tempmempool, mergedwidth * mergedheight * 4) : NULL;
5694 for (i = 0;i < count;i++)
5696 // figure out which merged lightmap texture this fits into
5697 realindex = i >> (int)loadmodel->brushq3.deluxemapping;
5698 lightmapindex = i >> powerdxy;
5700 // choose the destination address
5701 mergebuf = (loadmodel->brushq3.deluxemapping && (i & 1)) ? mergeddeluxepixels : mergedpixels;
5702 mergebuf += 4 * (realindex & (mergedcolumns-1))*size + 4 * ((realindex >> powerx) & (mergedrows-1))*mergedwidth*size;
5703 if ((i & 1) == 0 || !loadmodel->brushq3.deluxemapping)
5704 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);
5706 // convert pixels from RGB or BGRA while copying them into the destination rectangle
5707 for (j = 0;j < size;j++)
5708 for (k = 0;k < size;k++)
5710 mergebuf[(j*mergedwidth+k)*4+0] = inpixels[i][(j*size+k)*bytesperpixel+rgbmap[0]];
5711 mergebuf[(j*mergedwidth+k)*4+1] = inpixels[i][(j*size+k)*bytesperpixel+rgbmap[1]];
5712 mergebuf[(j*mergedwidth+k)*4+2] = inpixels[i][(j*size+k)*bytesperpixel+rgbmap[2]];
5713 mergebuf[(j*mergedwidth+k)*4+3] = 255;
5716 // upload texture if this was the last tile being written to the texture
5717 if (((realindex + 1) & (mergedrowsxcolumns - 1)) == 0 || (realindex + 1) == realcount)
5719 if (loadmodel->brushq3.deluxemapping && (i & 1))
5720 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);
5723 if(mod_q3bsp_sRGBlightmaps.integer)
5726 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5728 t = TEXTYPE_BGRA; // in stupid fallback mode, we upload lightmaps in sRGB form and just fix their brightness
5729 // we fix the brightness consistently via lightmapscale
5732 t = TEXTYPE_SRGB_BGRA; // normally, we upload lightmaps in sRGB form (possibly downconverted to linear)
5733 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);
5737 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5738 Image_MakesRGBColorsFromLinear_Lightmap(mergedpixels, mergedpixels, mergedwidth * mergedheight);
5739 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);
5745 if (mergeddeluxepixels)
5746 Mem_Free(mergeddeluxepixels);
5747 Mem_Free(mergedpixels);
5750 for(i = 0; i < count; ++i)
5751 Mem_Free(inpixels[i]);
5755 typedef struct patchtess_s
5759 // Auxiliary data used only by patch loading code in Mod_Q3BSP_LoadFaces
5762 float *originalvertex3f;
5765 #define PATCHTESS_SAME_LODGROUP(a,b) \
5767 (a).lodgroup[0] == (b).lodgroup[0] && \
5768 (a).lodgroup[1] == (b).lodgroup[1] && \
5769 (a).lodgroup[2] == (b).lodgroup[2] && \
5770 (a).lodgroup[3] == (b).lodgroup[3] && \
5771 (a).lodgroup[4] == (b).lodgroup[4] && \
5772 (a).lodgroup[5] == (b).lodgroup[5] \
5775 static void Mod_Q3BSP_LoadFaces(lump_t *l)
5777 q3dface_t *in, *oldin;
5778 msurface_t *out, *oldout;
5779 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;
5780 float lightmaptcbase[2], lightmaptcscale[2];
5781 //int *originalelement3i;
5782 float *originalvertex3f;
5783 //float *originalsvector3f;
5784 //float *originaltvector3f;
5785 float *originalnormal3f;
5786 float *originalcolor4f;
5787 float *originaltexcoordtexture2f;
5788 float *originaltexcoordlightmap2f;
5789 float *surfacecollisionvertex3f;
5790 int *surfacecollisionelement3i;
5792 patchtess_t *patchtess = NULL;
5793 int patchtesscount = 0;
5796 in = (q3dface_t *)(mod_base + l->fileofs);
5797 if (l->filelen % sizeof(*in))
5798 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
5799 count = l->filelen / sizeof(*in);
5800 out = (msurface_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5802 loadmodel->data_surfaces = out;
5803 loadmodel->num_surfaces = count;
5806 patchtess = (patchtess_t*) Mem_Alloc(tempmempool, count * sizeof(*patchtess));
5814 for (;i < count;i++, in++, out++)
5816 // check face type first
5817 type = LittleLong(in->type);
5818 if (type != Q3FACETYPE_FLAT
5819 && type != Q3FACETYPE_PATCH
5820 && type != Q3FACETYPE_MESH
5821 && type != Q3FACETYPE_FLARE)
5823 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
5827 n = LittleLong(in->textureindex);
5828 if (n < 0 || n >= loadmodel->num_textures)
5830 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
5833 out->texture = loadmodel->data_textures + n;
5834 n = LittleLong(in->effectindex);
5835 if (n < -1 || n >= loadmodel->brushq3.num_effects)
5837 if (developer_extra.integer)
5838 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
5844 out->effect = loadmodel->brushq3.data_effects + n;
5846 if (cls.state != ca_dedicated)
5848 out->lightmaptexture = NULL;
5849 out->deluxemaptexture = r_texture_blanknormalmap;
5850 n = LittleLong(in->lightmapindex);
5853 else if (n >= loadmodel->brushq3.num_originallightmaps)
5855 if(loadmodel->brushq3.num_originallightmaps != 0)
5856 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_originallightmaps);
5861 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n >> loadmodel->brushq3.num_lightmapmergedwidthheightdeluxepower];
5862 if (loadmodel->brushq3.deluxemapping)
5863 out->deluxemaptexture = loadmodel->brushq3.data_deluxemaps[n >> loadmodel->brushq3.num_lightmapmergedwidthheightdeluxepower];
5864 loadmodel->lit = true;
5868 firstvertex = LittleLong(in->firstvertex);
5869 numvertices = LittleLong(in->numvertices);
5870 firstelement = LittleLong(in->firstelement);
5871 numtriangles = LittleLong(in->numelements) / 3;
5872 if (numtriangles * 3 != LittleLong(in->numelements))
5874 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));
5877 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
5879 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);
5882 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
5884 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);
5889 case Q3FACETYPE_FLAT:
5890 case Q3FACETYPE_MESH:
5891 // no processing necessary
5893 case Q3FACETYPE_PATCH:
5894 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
5895 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
5896 if (numvertices != (patchsize[0] * patchsize[1]) || patchsize[0] < 3 || patchsize[1] < 3 || !(patchsize[0] & 1) || !(patchsize[1] & 1) || patchsize[0] * patchsize[1] >= min(r_subdivisions_maxvertices.integer, r_subdivisions_collision_maxvertices.integer))
5898 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
5901 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
5903 // convert patch to Q3FACETYPE_MESH
5904 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5905 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5906 // bound to user settings
5907 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
5908 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
5909 // bound to sanity settings
5910 xtess = bound(0, xtess, 1024);
5911 ytess = bound(0, ytess, 1024);
5913 // lower quality collision patches! Same procedure as before, but different cvars
5914 // convert patch to Q3FACETYPE_MESH
5915 cxtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
5916 cytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
5917 // bound to user settings
5918 cxtess = bound(r_subdivisions_collision_mintess.integer, cxtess, r_subdivisions_collision_maxtess.integer);
5919 cytess = bound(r_subdivisions_collision_mintess.integer, cytess, r_subdivisions_collision_maxtess.integer);
5920 // bound to sanity settings
5921 cxtess = bound(0, cxtess, 1024);
5922 cytess = bound(0, cytess, 1024);
5924 // store it for the LOD grouping step
5925 patchtess[patchtesscount].info.xsize = patchsize[0];
5926 patchtess[patchtesscount].info.ysize = patchsize[1];
5927 patchtess[patchtesscount].info.lods[PATCH_LOD_VISUAL].xtess = xtess;
5928 patchtess[patchtesscount].info.lods[PATCH_LOD_VISUAL].ytess = ytess;
5929 patchtess[patchtesscount].info.lods[PATCH_LOD_COLLISION].xtess = cxtess;
5930 patchtess[patchtesscount].info.lods[PATCH_LOD_COLLISION].ytess = cytess;
5932 patchtess[patchtesscount].surface_id = i;
5933 patchtess[patchtesscount].lodgroup[0] = LittleFloat(in->specific.patch.mins[0]);
5934 patchtess[patchtesscount].lodgroup[1] = LittleFloat(in->specific.patch.mins[1]);
5935 patchtess[patchtesscount].lodgroup[2] = LittleFloat(in->specific.patch.mins[2]);
5936 patchtess[patchtesscount].lodgroup[3] = LittleFloat(in->specific.patch.maxs[0]);
5937 patchtess[patchtesscount].lodgroup[4] = LittleFloat(in->specific.patch.maxs[1]);
5938 patchtess[patchtesscount].lodgroup[5] = LittleFloat(in->specific.patch.maxs[2]);
5939 patchtess[patchtesscount].originalvertex3f = originalvertex3f;
5942 case Q3FACETYPE_FLARE:
5943 if (developer_extra.integer)
5944 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
5948 out->num_vertices = numvertices;
5949 out->num_triangles = numtriangles;
5950 meshvertices += out->num_vertices;
5951 meshtriangles += out->num_triangles;
5954 // Fix patches tesselations so that they make no seams
5958 for(i = 0; i < patchtesscount; ++i)
5960 for(j = i+1; j < patchtesscount; ++j)
5962 if (!PATCHTESS_SAME_LODGROUP(patchtess[i], patchtess[j]))
5965 if (Q3PatchAdjustTesselation(3, &patchtess[i].info, patchtess[i].originalvertex3f, &patchtess[j].info, patchtess[j].originalvertex3f) )
5972 // Calculate resulting number of triangles
5973 collisionvertices = 0;
5974 collisiontriangles = 0;
5975 for(i = 0; i < patchtesscount; ++i)
5977 finalwidth = Q3PatchDimForTess(patchtess[i].info.xsize, patchtess[i].info.lods[PATCH_LOD_VISUAL].xtess);
5978 finalheight = Q3PatchDimForTess(patchtess[i].info.ysize,patchtess[i].info.lods[PATCH_LOD_VISUAL].ytess);
5979 numvertices = finalwidth * finalheight;
5980 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
5982 oldout[patchtess[i].surface_id].num_vertices = numvertices;
5983 oldout[patchtess[i].surface_id].num_triangles = numtriangles;
5984 meshvertices += oldout[patchtess[i].surface_id].num_vertices;
5985 meshtriangles += oldout[patchtess[i].surface_id].num_triangles;
5987 finalwidth = Q3PatchDimForTess(patchtess[i].info.xsize, patchtess[i].info.lods[PATCH_LOD_COLLISION].xtess);
5988 finalheight = Q3PatchDimForTess(patchtess[i].info.ysize,patchtess[i].info.lods[PATCH_LOD_COLLISION].ytess);
5989 numvertices = finalwidth * finalheight;
5990 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
5992 oldout[patchtess[i].surface_id].num_collisionvertices = numvertices;
5993 oldout[patchtess[i].surface_id].num_collisiontriangles = numtriangles;
5994 collisionvertices += oldout[patchtess[i].surface_id].num_collisionvertices;
5995 collisiontriangles += oldout[patchtess[i].surface_id].num_collisiontriangles;
6001 Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true);
6002 if (collisiontriangles)
6004 loadmodel->brush.data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, collisionvertices * sizeof(float[3]));
6005 loadmodel->brush.data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, collisiontriangles * sizeof(int[3]));
6009 collisionvertices = 0;
6010 collisiontriangles = 0;
6011 for (;i < count && meshvertices + out->num_vertices <= loadmodel->surfmesh.num_vertices;i++, in++, out++)
6013 if (out->num_vertices < 3 || out->num_triangles < 1)
6016 type = LittleLong(in->type);
6017 firstvertex = LittleLong(in->firstvertex);
6018 firstelement = LittleLong(in->firstelement);
6019 out->num_firstvertex = meshvertices;
6020 out->num_firsttriangle = meshtriangles;
6021 out->num_firstcollisiontriangle = collisiontriangles;
6024 case Q3FACETYPE_FLAT:
6025 case Q3FACETYPE_MESH:
6026 // no processing necessary, except for lightmap merging
6027 for (j = 0;j < out->num_vertices;j++)
6029 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
6030 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
6031 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
6032 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 0];
6033 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 1];
6034 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 2];
6035 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
6036 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
6037 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
6038 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
6039 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
6040 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
6041 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
6042 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
6044 for (j = 0;j < out->num_triangles*3;j++)
6045 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
6047 case Q3FACETYPE_PATCH:
6048 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
6049 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
6050 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
6051 originalnormal3f = loadmodel->brushq3.data_normal3f + firstvertex * 3;
6052 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
6053 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
6054 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
6056 xtess = ytess = cxtess = cytess = -1;
6057 for(j = 0; j < patchtesscount; ++j)
6058 if(patchtess[j].surface_id == i)
6060 xtess = patchtess[j].info.lods[PATCH_LOD_VISUAL].xtess;
6061 ytess = patchtess[j].info.lods[PATCH_LOD_VISUAL].ytess;
6062 cxtess = patchtess[j].info.lods[PATCH_LOD_COLLISION].xtess;
6063 cytess = patchtess[j].info.lods[PATCH_LOD_COLLISION].ytess;
6068 Con_Printf(CON_ERROR "ERROR: patch %d isn't preprocessed?!?\n", i);
6069 xtess = ytess = cxtess = cytess = 0;
6072 finalwidth = Q3PatchDimForTess(patchsize[0],xtess); //((patchsize[0] - 1) * xtess) + 1;
6073 finalheight = Q3PatchDimForTess(patchsize[1],ytess); //((patchsize[1] - 1) * ytess) + 1;
6074 finalvertices = finalwidth * finalheight;
6075 oldnumtriangles = finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
6076 type = Q3FACETYPE_MESH;
6077 // generate geometry
6078 // (note: normals are skipped because they get recalculated)
6079 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
6080 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalnormal3f, xtess, ytess);
6081 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
6082 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
6083 Q3PatchTesselateFloat(4, sizeof(float[4]), (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
6084 Q3PatchTriangleElements((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
6086 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);
6088 if (developer_extra.integer)
6090 if (out->num_triangles < finaltriangles)
6091 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);
6093 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);
6095 // q3map does not put in collision brushes for curves... ugh
6096 // build the lower quality collision geometry
6097 finalwidth = Q3PatchDimForTess(patchsize[0],cxtess); //((patchsize[0] - 1) * cxtess) + 1;
6098 finalheight = Q3PatchDimForTess(patchsize[1],cytess); //((patchsize[1] - 1) * cytess) + 1;
6099 finalvertices = finalwidth * finalheight;
6100 oldnumtriangles2 = finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
6102 // store collision geometry for BIH collision tree
6103 out->num_collisionvertices = finalvertices;
6104 out->num_collisiontriangles = finaltriangles;
6105 surfacecollisionvertex3f = loadmodel->brush.data_collisionvertex3f + collisionvertices * 3;
6106 surfacecollisionelement3i = loadmodel->brush.data_collisionelement3i + collisiontriangles * 3;
6107 Q3PatchTesselateFloat(3, sizeof(float[3]), surfacecollisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, cxtess, cytess);
6108 Q3PatchTriangleElements(surfacecollisionelement3i, finalwidth, finalheight, collisionvertices);
6109 Mod_SnapVertices(3, finalvertices, surfacecollisionvertex3f, 1);
6110 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(finaltriangles, surfacecollisionelement3i, surfacecollisionelement3i, loadmodel->brush.data_collisionvertex3f);
6112 if (developer_extra.integer)
6113 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);
6115 collisionvertices += finalvertices;
6116 collisiontriangles += out->num_collisiontriangles;
6121 meshvertices += out->num_vertices;
6122 meshtriangles += out->num_triangles;
6123 for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
6124 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)
6126 if (invalidelements)
6128 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);
6129 for (j = 0;j < out->num_triangles * 3;j++)
6131 Con_Printf(" %i", (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
6132 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)
6133 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
6137 // calculate a bounding box
6138 VectorClear(out->mins);
6139 VectorClear(out->maxs);
6140 if (out->num_vertices)
6142 if (cls.state != ca_dedicated && out->lightmaptexture)
6144 // figure out which part of the merged lightmap this fits into
6145 int lightmapindex = LittleLong(in->lightmapindex) >> (loadmodel->brushq3.deluxemapping ? 1 : 0);
6146 int mergewidth = R_TextureWidth(out->lightmaptexture) / loadmodel->brushq3.lightmapsize;
6147 int mergeheight = R_TextureHeight(out->lightmaptexture) / loadmodel->brushq3.lightmapsize;
6148 lightmapindex &= mergewidth * mergeheight - 1;
6149 lightmaptcscale[0] = 1.0f / mergewidth;
6150 lightmaptcscale[1] = 1.0f / mergeheight;
6151 lightmaptcbase[0] = (lightmapindex % mergewidth) * lightmaptcscale[0];
6152 lightmaptcbase[1] = (lightmapindex / mergewidth) * lightmaptcscale[1];
6153 // modify the lightmap texcoords to match this region of the merged lightmap
6154 for (j = 0, v = loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex;j < out->num_vertices;j++, v += 2)
6156 v[0] = v[0] * lightmaptcscale[0] + lightmaptcbase[0];
6157 v[1] = v[1] * lightmaptcscale[1] + lightmaptcbase[1];
6160 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->mins);
6161 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->maxs);
6162 for (j = 1, v = (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
6164 out->mins[0] = min(out->mins[0], v[0]);
6165 out->maxs[0] = max(out->maxs[0], v[0]);
6166 out->mins[1] = min(out->mins[1], v[1]);
6167 out->maxs[1] = max(out->maxs[1], v[1]);
6168 out->mins[2] = min(out->mins[2], v[2]);
6169 out->maxs[2] = max(out->maxs[2], v[2]);
6171 out->mins[0] -= 1.0f;
6172 out->mins[1] -= 1.0f;
6173 out->mins[2] -= 1.0f;
6174 out->maxs[0] += 1.0f;
6175 out->maxs[1] += 1.0f;
6176 out->maxs[2] += 1.0f;
6178 // set lightmap styles for consistency with q1bsp
6179 //out->lightmapinfo->styles[0] = 0;
6180 //out->lightmapinfo->styles[1] = 255;
6181 //out->lightmapinfo->styles[2] = 255;
6182 //out->lightmapinfo->styles[3] = 255;
6187 for (;i < count;i++, out++)
6189 if(out->num_vertices && out->num_triangles)
6191 if(out->num_vertices == 0)
6193 Con_Printf("Mod_Q3BSP_LoadFaces: surface %d (texture %s) has no vertices, ignoring\n", i, out->texture ? out->texture->name : "(none)");
6194 if(out->num_triangles == 0)
6195 Con_Printf("Mod_Q3BSP_LoadFaces: surface %d (texture %s) has no triangles, ignoring\n", i, out->texture ? out->texture->name : "(none)");
6197 else if(out->num_triangles == 0)
6198 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)",
6199 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[0 * 3 + 0],
6200 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[1 * 3 + 0],
6201 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[2 * 3 + 0]);
6204 // for per pixel lighting
6205 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);
6207 // generate ushort elements array if possible
6208 if (loadmodel->surfmesh.data_element3s)
6209 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
6210 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
6212 // free the no longer needed vertex data
6213 loadmodel->brushq3.num_vertices = 0;
6214 if (loadmodel->brushq3.data_vertex3f)
6215 Mem_Free(loadmodel->brushq3.data_vertex3f);
6216 loadmodel->brushq3.data_vertex3f = NULL;
6217 loadmodel->brushq3.data_normal3f = NULL;
6218 loadmodel->brushq3.data_texcoordtexture2f = NULL;
6219 loadmodel->brushq3.data_texcoordlightmap2f = NULL;
6220 loadmodel->brushq3.data_color4f = NULL;
6221 // free the no longer needed triangle data
6222 loadmodel->brushq3.num_triangles = 0;
6223 if (loadmodel->brushq3.data_element3i)
6224 Mem_Free(loadmodel->brushq3.data_element3i);
6225 loadmodel->brushq3.data_element3i = NULL;
6228 Mem_Free(patchtess);
6231 static void Mod_Q3BSP_LoadModels(lump_t *l)
6235 int i, j, n, c, count;
6237 in = (q3dmodel_t *)(mod_base + l->fileofs);
6238 if (l->filelen % sizeof(*in))
6239 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
6240 count = l->filelen / sizeof(*in);
6241 out = (q3dmodel_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6243 loadmodel->brushq3.data_models = out;
6244 loadmodel->brushq3.num_models = count;
6246 for (i = 0;i < count;i++, in++, out++)
6248 for (j = 0;j < 3;j++)
6250 out->mins[j] = LittleFloat(in->mins[j]);
6251 out->maxs[j] = LittleFloat(in->maxs[j]);
6253 n = LittleLong(in->firstface);
6254 c = LittleLong(in->numfaces);
6255 if (n < 0 || n + c > loadmodel->num_surfaces)
6256 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)", n, n + c, loadmodel->num_surfaces);
6259 n = LittleLong(in->firstbrush);
6260 c = LittleLong(in->numbrushes);
6261 if (n < 0 || n + c > loadmodel->brush.num_brushes)
6262 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)", n, n + c, loadmodel->brush.num_brushes);
6263 out->firstbrush = n;
6264 out->numbrushes = c;
6268 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
6274 in = (int *)(mod_base + l->fileofs);
6275 if (l->filelen % sizeof(*in))
6276 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
6277 count = l->filelen / sizeof(*in);
6278 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6280 loadmodel->brush.data_leafbrushes = out;
6281 loadmodel->brush.num_leafbrushes = count;
6283 for (i = 0;i < count;i++, in++, out++)
6285 n = LittleLong(*in);
6286 if (n < 0 || n >= loadmodel->brush.num_brushes)
6287 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)", n, loadmodel->brush.num_brushes);
6292 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
6298 in = (int *)(mod_base + l->fileofs);
6299 if (l->filelen % sizeof(*in))
6300 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
6301 count = l->filelen / sizeof(*in);
6302 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6304 loadmodel->brush.data_leafsurfaces = out;
6305 loadmodel->brush.num_leafsurfaces = count;
6307 for (i = 0;i < count;i++, in++, out++)
6309 n = LittleLong(*in);
6310 if (n < 0 || n >= loadmodel->num_surfaces)
6311 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)", n, loadmodel->num_surfaces);
6316 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
6320 int i, j, n, c, count;
6322 in = (q3dleaf_t *)(mod_base + l->fileofs);
6323 if (l->filelen % sizeof(*in))
6324 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
6325 count = l->filelen / sizeof(*in);
6326 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6328 loadmodel->brush.data_leafs = out;
6329 loadmodel->brush.num_leafs = count;
6331 for (i = 0;i < count;i++, in++, out++)
6335 out->clusterindex = LittleLong(in->clusterindex);
6336 out->areaindex = LittleLong(in->areaindex);
6337 for (j = 0;j < 3;j++)
6339 // yes the mins/maxs are ints
6340 out->mins[j] = LittleLong(in->mins[j]) - 1;
6341 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
6343 n = LittleLong(in->firstleafface);
6344 c = LittleLong(in->numleaffaces);
6345 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
6346 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)", n, n + c, loadmodel->brush.num_leafsurfaces);
6347 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
6348 out->numleafsurfaces = c;
6349 n = LittleLong(in->firstleafbrush);
6350 c = LittleLong(in->numleafbrushes);
6351 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
6352 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)", n, n + c, loadmodel->brush.num_leafbrushes);
6353 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
6354 out->numleafbrushes = c;
6358 static void Mod_Q3BSP_LoadNodes(lump_t *l)
6364 in = (q3dnode_t *)(mod_base + l->fileofs);
6365 if (l->filelen % sizeof(*in))
6366 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
6367 count = l->filelen / sizeof(*in);
6369 Host_Error("Mod_Q3BSP_LoadNodes: missing BSP tree in %s",loadmodel->name);
6370 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6372 loadmodel->brush.data_nodes = out;
6373 loadmodel->brush.num_nodes = count;
6375 for (i = 0;i < count;i++, in++, out++)
6378 n = LittleLong(in->planeindex);
6379 if (n < 0 || n >= loadmodel->brush.num_planes)
6380 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
6381 out->plane = loadmodel->brush.data_planes + n;
6382 for (j = 0;j < 2;j++)
6384 n = LittleLong(in->childrenindex[j]);
6387 if (n >= loadmodel->brush.num_nodes)
6388 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)", n, loadmodel->brush.num_nodes);
6389 out->children[j] = loadmodel->brush.data_nodes + n;
6394 if (n >= loadmodel->brush.num_leafs)
6395 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)", n, loadmodel->brush.num_leafs);
6396 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
6399 for (j = 0;j < 3;j++)
6401 // yes the mins/maxs are ints
6402 out->mins[j] = LittleLong(in->mins[j]) - 1;
6403 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
6407 // set the parent pointers
6408 Mod_BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
6411 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
6414 q3dlightgrid_t *out;
6418 unsigned char *texturergba, *texturelayer[3], *texturepadding[2];
6419 double lightgridmatrix[4][4];
6421 in = (q3dlightgrid_t *)(mod_base + l->fileofs);
6422 if (l->filelen % sizeof(*in))
6423 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
6424 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
6425 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
6426 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
6427 loadmodel->brushq3.num_lightgrid_imins[0] = (int)ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
6428 loadmodel->brushq3.num_lightgrid_imins[1] = (int)ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
6429 loadmodel->brushq3.num_lightgrid_imins[2] = (int)ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
6430 loadmodel->brushq3.num_lightgrid_imaxs[0] = (int)floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
6431 loadmodel->brushq3.num_lightgrid_imaxs[1] = (int)floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
6432 loadmodel->brushq3.num_lightgrid_imaxs[2] = (int)floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
6433 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
6434 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
6435 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
6436 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
6437 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]);
6438 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]);
6440 // if lump is empty there is nothing to load, we can deal with that in the LightPoint code
6443 if (l->filelen < count * (int)sizeof(*in))
6445 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]);
6446 return; // ignore the grid if we cannot understand it
6448 if (l->filelen != count * (int)sizeof(*in))
6449 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);
6450 out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6451 loadmodel->brushq3.data_lightgrid = out;
6452 loadmodel->brushq3.num_lightgrid = count;
6453 // no swapping or validation necessary
6454 memcpy(out, in, count * (int)sizeof(*out));
6456 if(mod_q3bsp_sRGBlightmaps.integer)
6458 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
6460 // we fix the brightness consistently via lightmapscale
6464 for(i = 0; i < count; ++i)
6466 out[i].ambientrgb[0] = floor(Image_LinearFloatFromsRGB(out[i].ambientrgb[0]) * 255.0f + 0.5f);
6467 out[i].ambientrgb[1] = floor(Image_LinearFloatFromsRGB(out[i].ambientrgb[1]) * 255.0f + 0.5f);
6468 out[i].ambientrgb[2] = floor(Image_LinearFloatFromsRGB(out[i].ambientrgb[2]) * 255.0f + 0.5f);
6469 out[i].diffusergb[0] = floor(Image_LinearFloatFromsRGB(out[i].diffusergb[0]) * 255.0f + 0.5f);
6470 out[i].diffusergb[1] = floor(Image_LinearFloatFromsRGB(out[i].diffusergb[1]) * 255.0f + 0.5f);
6471 out[i].diffusergb[2] = floor(Image_LinearFloatFromsRGB(out[i].diffusergb[2]) * 255.0f + 0.5f);
6477 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
6479 for(i = 0; i < count; ++i)
6481 out[i].ambientrgb[0] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].ambientrgb[0]) * 255.0f + 0.5f);
6482 out[i].ambientrgb[1] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].ambientrgb[1]) * 255.0f + 0.5f);
6483 out[i].ambientrgb[2] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].ambientrgb[2]) * 255.0f + 0.5f);
6484 out[i].diffusergb[0] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].diffusergb[0]) * 255.0f + 0.5f);
6485 out[i].diffusergb[1] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].diffusergb[1]) * 255.0f + 0.5f);
6486 out[i].diffusergb[2] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].diffusergb[2]) * 255.0f + 0.5f);
6495 if (mod_q3bsp_lightgrid_texture.integer)
6497 // build a texture to hold the data for per-pixel sampling
6498 // this has 3 different kinds of data stacked in it:
6500 // bent-normal light color
6501 // bent-normal light dir
6503 texturesize[0] = loadmodel->brushq3.num_lightgrid_isize[0];
6504 texturesize[1] = loadmodel->brushq3.num_lightgrid_isize[1];
6505 texturesize[2] = (loadmodel->brushq3.num_lightgrid_isize[2] + 2) * 3;
6506 texturergba = (unsigned char*)Mem_Alloc(loadmodel->mempool, texturesize[0] * texturesize[1] * texturesize[2] * sizeof(char[4]));
6507 texturelayer[0] = texturergba + loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * 4;
6508 texturelayer[1] = texturelayer[0] + (loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * (loadmodel->brushq3.num_lightgrid_isize[2] + 2)) * 4;
6509 texturelayer[2] = texturelayer[1] + (loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * (loadmodel->brushq3.num_lightgrid_isize[2] + 2)) * 4;
6510 // the light dir layer needs padding above/below it that is a neutral unsigned normal (127,127,127,255)
6511 texturepadding[0] = texturelayer[2] - loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * 4;
6512 texturepadding[1] = texturelayer[2] + loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2] * 4;
6513 for (i = 0; i < texturesize[0] * texturesize[1]; i++)
6515 texturepadding[0][i * 4] = texturepadding[1][i * 4] = 127;
6516 texturepadding[0][i * 4 + 1] = texturepadding[1][i * 4 + 1] = 127;
6517 texturepadding[0][i * 4 + 2] = texturepadding[1][i * 4 + 2] = 127;
6518 texturepadding[0][i * 4 + 3] = texturepadding[1][i * 4 + 3] = 255;
6520 for (i = 0; i < count; i++)
6522 texturelayer[0][i * 4 + 0] = out[i].ambientrgb[0];
6523 texturelayer[0][i * 4 + 1] = out[i].ambientrgb[1];
6524 texturelayer[0][i * 4 + 2] = out[i].ambientrgb[2];
6525 texturelayer[0][i * 4 + 3] = 255;
6526 texturelayer[1][i * 4 + 0] = out[i].diffusergb[0];
6527 texturelayer[1][i * 4 + 1] = out[i].diffusergb[1];
6528 texturelayer[1][i * 4 + 2] = out[i].diffusergb[2];
6529 texturelayer[1][i * 4 + 3] = 255;
6530 // this uses the mod_md3_sin table because the values are
6531 // already in the 0-255 range, the 64+ bias fetches a cosine
6532 // instead of a sine value
6533 texturelayer[2][i * 4 + 0] = (char)((mod_md3_sin[64 + out[i].diffuseyaw] * mod_md3_sin[out[i].diffusepitch]) * 127 + 127);
6534 texturelayer[2][i * 4 + 1] = (char)((mod_md3_sin[out[i].diffuseyaw] * mod_md3_sin[out[i].diffusepitch]) * 127 + 127);
6535 texturelayer[2][i * 4 + 2] = (char)((mod_md3_sin[64 + out[i].diffusepitch]) * 127 + 127);
6536 texturelayer[2][i * 4 + 3] = 255;
6541 for (z = 0; z < loadmodel->brushq3.num_lightgrid_isize[2]; z++)
6543 for (y = 0; y < loadmodel->brushq3.num_lightgrid_isize[1]; y++)
6545 for (x = 0; x < loadmodel->brushq3.num_lightgrid_isize[0]; x++)
6547 i = (z * texturesize[1] + y) * texturesize[0] + x;
6548 texturelayer[0][i * 4 + 0] = x * 256 / loadmodel->brushq3.num_lightgrid_isize[0];
6549 texturelayer[0][i * 4 + 1] = y * 256 / loadmodel->brushq3.num_lightgrid_isize[1];
6550 texturelayer[0][i * 4 + 2] = z * 256 / loadmodel->brushq3.num_lightgrid_isize[2];
6555 loadmodel->brushq3.lightgridtexturesize[0] = texturesize[0];
6556 loadmodel->brushq3.lightgridtexturesize[1] = texturesize[1];
6557 loadmodel->brushq3.lightgridtexturesize[2] = texturesize[2];
6558 memset(lightgridmatrix[0], 0, sizeof(lightgridmatrix));
6559 lightgridmatrix[0][0] = loadmodel->brushq3.num_lightgrid_scale[0] / texturesize[0];
6560 lightgridmatrix[1][1] = loadmodel->brushq3.num_lightgrid_scale[1] / texturesize[1];
6561 lightgridmatrix[2][2] = loadmodel->brushq3.num_lightgrid_scale[2] / texturesize[2];
6562 lightgridmatrix[0][3] = -(loadmodel->brushq3.num_lightgrid_imins[0] - 0.5f) / texturesize[0];
6563 lightgridmatrix[1][3] = -(loadmodel->brushq3.num_lightgrid_imins[1] - 0.5f) / texturesize[1];
6564 lightgridmatrix[2][3] = -(loadmodel->brushq3.num_lightgrid_imins[2] - 1.5f) / texturesize[2];
6565 lightgridmatrix[3][3] = 1;
6566 Matrix4x4_FromArrayDoubleD3D(&loadmodel->brushq3.lightgridworldtotexturematrix, lightgridmatrix);
6567 loadmodel->brushq3.lightgridtexture = R_LoadTexture3D(loadmodel->texturepool, "lightgrid", texturesize[0], texturesize[1], texturesize[2], texturergba, TEXTYPE_RGBA, TEXF_CLAMP, 0, NULL);
6568 Mem_Free(texturergba);
6573 static void Mod_Q3BSP_LoadPVS(lump_t *l)
6578 if (l->filelen == 0)
6581 // unvised maps often have cluster indices even without pvs, so check
6582 // leafs to find real number of clusters
6583 loadmodel->brush.num_pvsclusters = 1;
6584 for (i = 0;i < loadmodel->brush.num_leafs;i++)
6585 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
6588 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
6589 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
6590 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
6591 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
6595 in = (q3dpvs_t *)(mod_base + l->fileofs);
6597 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
6599 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
6600 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
6601 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
6602 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
6603 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
6604 if (l->filelen < totalchains + (int)sizeof(*in))
6605 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);
6607 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
6608 memcpy(loadmodel->brush.data_pvsclusters, (unsigned char *)(in + 1), totalchains);
6611 static void Mod_Q3BSP_LightPoint(model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
6613 int i, j, k, index[3];
6614 float transformed[3], blend1, blend2, blend, stylescale = 1;
6615 q3dlightgrid_t *a, *s;
6617 // scale lighting by lightstyle[0] so that darkmode in dpmod works properly
6618 // LadyHavoc: FIXME: is this true?
6619 stylescale = 1; // added while render
6620 //stylescale = r_refdef.scene.rtlightstylevalue[0];
6622 if (!model->brushq3.num_lightgrid)
6624 ambientcolor[0] = stylescale;
6625 ambientcolor[1] = stylescale;
6626 ambientcolor[2] = stylescale;
6630 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
6631 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
6632 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
6633 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
6634 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
6635 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
6636 index[0] = (int)floor(transformed[0]);
6637 index[1] = (int)floor(transformed[1]);
6638 index[2] = (int)floor(transformed[2]);
6639 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
6641 // now lerp the values
6642 VectorClear(diffusenormal);
6643 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
6644 for (k = 0;k < 2;k++)
6646 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
6647 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
6649 for (j = 0;j < 2;j++)
6651 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
6652 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
6654 for (i = 0;i < 2;i++)
6656 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0]))) * stylescale;
6657 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
6659 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
6660 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
6661 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
6662 // this uses the mod_md3_sin table because the values are
6663 // already in the 0-255 range, the 64+ bias fetches a cosine
6664 // instead of a sine value
6665 diffusenormal[0] += blend * (mod_md3_sin[64 + s->diffuseyaw] * mod_md3_sin[s->diffusepitch]);
6666 diffusenormal[1] += blend * (mod_md3_sin[ s->diffuseyaw] * mod_md3_sin[s->diffusepitch]);
6667 diffusenormal[2] += blend * (mod_md3_sin[64 + s->diffusepitch]);
6668 //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)));
6673 // normalize the light direction before turning
6674 VectorNormalize(diffusenormal);
6675 //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]);
6678 static int Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(mnode_t *node, double p1[3], double p2[3], double endpos[3])
6681 double midf, mid[3];
6687 // find the point distances
6688 mplane_t *plane = node->plane;
6689 if (plane->type < 3)
6691 t1 = p1[plane->type] - plane->dist;
6692 t2 = p2[plane->type] - plane->dist;
6696 t1 = DotProduct (plane->normal, p1) - plane->dist;
6697 t2 = DotProduct (plane->normal, p2) - plane->dist;
6704 node = node->children[1];
6713 node = node->children[0];
6719 midf = t1 / (t1 - t2);
6720 VectorLerp(p1, midf, p2, mid);
6722 // recurse both sides, front side first
6723 // return 2 if empty is followed by solid (hit something)
6724 // do not return 2 if both are solid or both empty,
6725 // or if start is solid and end is empty
6726 // as these degenerate cases usually indicate the eye is in solid and
6727 // should see the target point anyway
6728 ret = Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ], p1, mid, endpos);
6731 ret = Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ^ 1], mid, p2, endpos);
6734 VectorCopy(mid, endpos);
6737 return ((mleaf_t *)node)->clusterindex < 0;
6740 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)
6742 if (model->brush.submodel || mod_q3bsp_tracelineofsight_brushes.integer)
6745 model->TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK, 0, MATERIALFLAGMASK_TRANSLUCENT);
6746 return trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, acceptmins, acceptmaxs);
6750 double tracestart[3], traceend[3], traceendpos[3];
6751 VectorCopy(start, tracestart);
6752 VectorCopy(end, traceend);
6753 VectorCopy(end, traceendpos);
6754 Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(model->brush.data_nodes, tracestart, traceend, traceendpos);
6755 return BoxesOverlap(traceendpos, traceendpos, acceptmins, acceptmaxs);
6759 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)
6762 const bih_leaf_t *leaf;
6763 const bih_node_t *node;
6764 const colbrushf_t *brush;
6767 int nodestackpos = 0;
6768 int nodestack[1024];
6770 memset(trace, 0, sizeof(*trace));
6771 trace->fraction = 1;
6772 trace->hitsupercontentsmask = hitsupercontentsmask;
6773 trace->skipsupercontentsmask = skipsupercontentsmask;
6774 trace->skipmaterialflagsmask = skipmaterialflagsmask;
6776 bih = &model->collision_bih;
6780 nodenum = bih->rootnode;
6781 nodestack[nodestackpos++] = nodenum;
6782 while (nodestackpos)
6784 nodenum = nodestack[--nodestackpos];
6785 node = bih->nodes + nodenum;
6787 if (!BoxesOverlap(start, start, node->mins, node->maxs))
6790 if (node->type <= BIH_SPLITZ && nodestackpos+2 <= 1024)
6792 axis = node->type - BIH_SPLITX;
6793 if (start[axis] >= node->frontmin)
6794 nodestack[nodestackpos++] = node->front;
6795 if (start[axis] <= node->backmax)
6796 nodestack[nodestackpos++] = node->back;
6798 else if (node->type == BIH_UNORDERED)
6800 for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
6802 leaf = bih->leafs + node->children[axis];
6804 if (!BoxesOverlap(start, start, leaf->mins, leaf->maxs))
6810 brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
6811 Collision_TracePointBrushFloat(trace, start, brush);
6813 case BIH_COLLISIONTRIANGLE:
6814 // collision triangle - skipped because they have no volume
6816 case BIH_RENDERTRIANGLE:
6817 // render triangle - skipped because they have no volume
6825 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)
6827 const bih_leaf_t *leaf;
6828 const bih_node_t *node;
6829 const colbrushf_t *brush;
6831 const texture_t *texture;
6832 vec3_t nodebigmins, nodebigmaxs, nodestart, nodeend, sweepnodemins, sweepnodemaxs;
6833 vec_t d1, d2, d3, d4, f, nodestackline[1024][6];
6834 int axis, nodenum, nodestackpos = 0, nodestack[1024];
6839 if (VectorCompare(start, end))
6841 Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
6845 nodenum = bih->rootnode;
6847 memset(trace, 0, sizeof(*trace));
6848 trace->fraction = 1;
6849 trace->hitsupercontentsmask = hitsupercontentsmask;
6850 trace->skipsupercontentsmask = skipsupercontentsmask;
6851 trace->skipmaterialflagsmask = skipmaterialflagsmask;
6854 nodestackline[nodestackpos][0] = start[0];
6855 nodestackline[nodestackpos][1] = start[1];
6856 nodestackline[nodestackpos][2] = start[2];
6857 nodestackline[nodestackpos][3] = end[0];
6858 nodestackline[nodestackpos][4] = end[1];
6859 nodestackline[nodestackpos][5] = end[2];
6860 nodestack[nodestackpos++] = nodenum;
6861 while (nodestackpos)
6863 nodenum = nodestack[--nodestackpos];
6864 node = bih->nodes + nodenum;
6865 VectorCopy(nodestackline[nodestackpos], nodestart);
6866 VectorCopy(nodestackline[nodestackpos] + 3, nodeend);
6867 sweepnodemins[0] = min(nodestart[0], nodeend[0]) - 1;
6868 sweepnodemins[1] = min(nodestart[1], nodeend[1]) - 1;
6869 sweepnodemins[2] = min(nodestart[2], nodeend[2]) - 1;
6870 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + 1;
6871 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + 1;
6872 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + 1;
6873 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, node->mins, node->maxs) && !collision_bih_fullrecursion.integer)
6875 if (node->type <= BIH_SPLITZ && nodestackpos+2 <= 1024)
6877 // recurse children of the split
6878 axis = node->type - BIH_SPLITX;
6879 d1 = node->backmax - nodestart[axis];
6880 d2 = node->backmax - nodeend[axis];
6881 d3 = nodestart[axis] - node->frontmin;
6882 d4 = nodeend[axis] - node->frontmin;
6883 if (collision_bih_fullrecursion.integer)
6884 d1 = d2 = d3 = d4 = 1; // force full recursion
6885 switch((d1 < 0) | ((d2 < 0) << 1) | ((d3 < 0) << 2) | ((d4 < 0) << 3))
6887 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;
6888 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;
6889 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;
6890 case 3: /* <<>> */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6891 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;
6892 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;
6893 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;
6894 case 7: /* <<<> */ f = d3 / (d3 - d4); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6895 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;
6896 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;
6897 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;
6898 case 11: /* <<>< */ f = d3 / (d3 - d4); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6899 case 12: /* >><< */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6900 case 13: /* <><< */ f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6901 case 14: /* ><<< */ f = d1 / (d1 - d2); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6902 case 15: /* <<<< */ break;
6905 else if (node->type == BIH_UNORDERED)
6907 // calculate sweep bounds for this node
6908 // copy node bounds into local variables
6909 VectorCopy(node->mins, nodebigmins);
6910 VectorCopy(node->maxs, nodebigmaxs);
6911 // clip line to this node bounds
6912 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); }
6913 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); }
6914 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); }
6915 // some of the line intersected the enlarged node box
6916 // calculate sweep bounds for this node
6917 sweepnodemins[0] = min(nodestart[0], nodeend[0]) - 1;
6918 sweepnodemins[1] = min(nodestart[1], nodeend[1]) - 1;
6919 sweepnodemins[2] = min(nodestart[2], nodeend[2]) - 1;
6920 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + 1;
6921 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + 1;
6922 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + 1;
6923 for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
6925 leaf = bih->leafs + node->children[axis];
6926 // TODO: This is very expensive in Steel Storm. Framerate halved during even light combat.
6927 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, leaf->mins, leaf->maxs))
6932 brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
6933 Collision_TraceLineBrushFloat(trace, start, end, brush, brush);
6935 case BIH_COLLISIONTRIANGLE:
6936 if (!mod_q3bsp_curves_collisions.integer)
6938 e = model->brush.data_collisionelement3i + 3*leaf->itemindex;
6939 texture = model->data_textures + leaf->textureindex;
6940 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);
6942 case BIH_RENDERTRIANGLE:
6943 e = model->surfmesh.data_element3i + 3*leaf->itemindex;
6944 texture = model->data_textures + leaf->textureindex;
6945 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);
6953 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)
6955 if (VectorCompare(start, end))
6957 Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
6960 Mod_CollisionBIH_TraceLineShared(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, &model->collision_bih);
6963 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)
6966 const bih_leaf_t *leaf;
6967 const bih_node_t *node;
6968 const colbrushf_t *brush;
6970 const texture_t *texture;
6971 vec3_t start, end, startmins, startmaxs, endmins, endmaxs, mins, maxs;
6972 vec3_t nodebigmins, nodebigmaxs, nodestart, nodeend, sweepnodemins, sweepnodemaxs;
6973 vec_t d1, d2, d3, d4, f, nodestackline[1024][6];
6974 int axis, nodenum, nodestackpos = 0, nodestack[1024];
6976 if (mod_q3bsp_optimizedtraceline.integer && VectorCompare(thisbrush_start->mins, thisbrush_start->maxs) && VectorCompare(thisbrush_end->mins, thisbrush_end->maxs))
6978 if (VectorCompare(thisbrush_start->mins, thisbrush_end->mins))
6979 Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, thisbrush_start->mins, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
6981 Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, thisbrush_start->mins, thisbrush_end->mins, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
6985 bih = &model->collision_bih;
6988 nodenum = bih->rootnode;
6990 // box trace, performed as brush trace
6991 memset(trace, 0, sizeof(*trace));
6992 trace->fraction = 1;
6993 trace->hitsupercontentsmask = hitsupercontentsmask;
6994 trace->skipsupercontentsmask = skipsupercontentsmask;
6995 trace->skipmaterialflagsmask = skipmaterialflagsmask;
6997 // calculate tracebox-like parameters for efficient culling
6998 VectorMAM(0.5f, thisbrush_start->mins, 0.5f, thisbrush_start->maxs, start);
6999 VectorMAM(0.5f, thisbrush_end->mins, 0.5f, thisbrush_end->maxs, end);
7000 VectorSubtract(thisbrush_start->mins, start, startmins);
7001 VectorSubtract(thisbrush_start->maxs, start, startmaxs);
7002 VectorSubtract(thisbrush_end->mins, end, endmins);
7003 VectorSubtract(thisbrush_end->maxs, end, endmaxs);
7004 mins[0] = min(startmins[0], endmins[0]);
7005 mins[1] = min(startmins[1], endmins[1]);
7006 mins[2] = min(startmins[2], endmins[2]);
7007 maxs[0] = max(startmaxs[0], endmaxs[0]);
7008 maxs[1] = max(startmaxs[1], endmaxs[1]);
7009 maxs[2] = max(startmaxs[2], endmaxs[2]);
7012 nodestackline[nodestackpos][0] = start[0];
7013 nodestackline[nodestackpos][1] = start[1];
7014 nodestackline[nodestackpos][2] = start[2];
7015 nodestackline[nodestackpos][3] = end[0];
7016 nodestackline[nodestackpos][4] = end[1];
7017 nodestackline[nodestackpos][5] = end[2];
7018 nodestack[nodestackpos++] = nodenum;
7019 while (nodestackpos)
7021 nodenum = nodestack[--nodestackpos];
7022 node = bih->nodes + nodenum;
7023 VectorCopy(nodestackline[nodestackpos], nodestart);
7024 VectorCopy(nodestackline[nodestackpos] + 3, nodeend);
7025 sweepnodemins[0] = min(nodestart[0], nodeend[0]) + mins[0] - 1;
7026 sweepnodemins[1] = min(nodestart[1], nodeend[1]) + mins[1] - 1;
7027 sweepnodemins[2] = min(nodestart[2], nodeend[2]) + mins[2] - 1;
7028 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + maxs[0] + 1;
7029 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + maxs[1] + 1;
7030 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + maxs[2] + 1;
7031 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, node->mins, node->maxs))
7033 if (node->type <= BIH_SPLITZ && nodestackpos+2 <= 1024)
7035 // recurse children of the split
7036 axis = node->type - BIH_SPLITX;
7037 d1 = node->backmax - nodestart[axis] - mins[axis];
7038 d2 = node->backmax - nodeend[axis] - mins[axis];
7039 d3 = nodestart[axis] - node->frontmin + maxs[axis];
7040 d4 = nodeend[axis] - node->frontmin + maxs[axis];
7041 switch((d1 < 0) | ((d2 < 0) << 1) | ((d3 < 0) << 2) | ((d4 < 0) << 3))
7043 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;
7044 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;
7045 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;
7046 case 3: /* <<>> */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7047 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;
7048 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;
7049 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;
7050 case 7: /* <<<> */ f = d3 / (d3 - d4); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7051 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;
7052 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;
7053 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;
7054 case 11: /* <<>< */ f = d3 / (d3 - d4); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
7055 case 12: /* >><< */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
7056 case 13: /* <><< */ f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
7057 case 14: /* ><<< */ f = d1 / (d1 - d2); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
7058 case 15: /* <<<< */ break;
7061 else if (node->type == BIH_UNORDERED)
7063 // calculate sweep bounds for this node
7064 // copy node bounds into local variables and expand to get Minkowski Sum of the two shapes
7065 VectorSubtract(node->mins, maxs, nodebigmins);
7066 VectorSubtract(node->maxs, mins, nodebigmaxs);
7067 // clip line to this node bounds
7068 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); }
7069 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); }
7070 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); }
7071 // some of the line intersected the enlarged node box
7072 // calculate sweep bounds for this node
7073 sweepnodemins[0] = min(nodestart[0], nodeend[0]) + mins[0] - 1;
7074 sweepnodemins[1] = min(nodestart[1], nodeend[1]) + mins[1] - 1;
7075 sweepnodemins[2] = min(nodestart[2], nodeend[2]) + mins[2] - 1;
7076 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + maxs[0] + 1;
7077 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + maxs[1] + 1;
7078 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + maxs[2] + 1;
7079 for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
7081 leaf = bih->leafs + node->children[axis];
7082 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, leaf->mins, leaf->maxs))
7087 brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
7088 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
7090 case BIH_COLLISIONTRIANGLE:
7091 if (!mod_q3bsp_curves_collisions.integer)
7093 e = model->brush.data_collisionelement3i + 3*leaf->itemindex;
7094 texture = model->data_textures + leaf->textureindex;
7095 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);
7097 case BIH_RENDERTRIANGLE:
7098 e = model->surfmesh.data_element3i + 3*leaf->itemindex;
7099 texture = model->data_textures + leaf->textureindex;
7100 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);
7108 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)
7110 colboxbrushf_t thisbrush_start, thisbrush_end;
7111 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
7113 // box trace, performed as brush trace
7114 VectorAdd(start, boxmins, boxstartmins);
7115 VectorAdd(start, boxmaxs, boxstartmaxs);
7116 VectorAdd(end, boxmins, boxendmins);
7117 VectorAdd(end, boxmaxs, boxendmaxs);
7118 Collision_BrushForBox(&thisbrush_start, boxstartmins, boxstartmaxs, 0, 0, NULL);
7119 Collision_BrushForBox(&thisbrush_end, boxendmins, boxendmaxs, 0, 0, NULL);
7120 Mod_CollisionBIH_TraceBrush(model, frameblend, skeleton, trace, &thisbrush_start.brush, &thisbrush_end.brush, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7124 int Mod_CollisionBIH_PointSuperContents(struct model_s *model, int frame, const vec3_t point)
7127 Mod_CollisionBIH_TracePoint(model, NULL, NULL, &trace, point, 0, 0, 0);
7128 return trace.startsupercontents;
7131 qbool Mod_CollisionBIH_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end, const vec3_t acceptmins, const vec3_t acceptmaxs)
7134 Mod_CollisionBIH_TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK, 0, MATERIALFLAGMASK_TRANSLUCENT);
7135 return trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, acceptmins, acceptmaxs);
7138 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)
7141 // broken - needs to be modified to count front faces and backfaces to figure out if it is in solid
7143 int hitsupercontents;
7144 VectorSet(end, start[0], start[1], model->normalmins[2]);
7146 memset(trace, 0, sizeof(*trace));
7147 trace->fraction = 1;
7148 trace->hitsupercontentsmask = hitsupercontentsmask;
7149 trace->skipsupercontentsmask = skipsupercontentsmask;
7150 trace->skipmaterialflagsmask = skipmaterialflagsmask;
7152 Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7153 hitsupercontents = trace->hitsupercontents;
7154 memset(trace, 0, sizeof(*trace));
7155 trace->fraction = 1;
7156 trace->hitsupercontentsmask = hitsupercontentsmask;
7157 trace->skipsupercontentsmask = skipsupercontentsmask;
7158 trace->skipmaterialflagsmask = skipmaterialflagsmask;
7159 trace->startsupercontents = hitsupercontents;
7163 int Mod_CollisionBIH_PointSuperContents_Mesh(struct model_s *model, int frame, const vec3_t start)
7166 // broken - needs to be modified to count front faces and backfaces to figure out if it is in solid
7169 VectorSet(end, start[0], start[1], model->normalmins[2]);
7170 memset(&trace, 0, sizeof(trace));
7172 trace.hitsupercontentsmask = hitsupercontentsmask;
7173 trace.skipsupercontentsmask = skipsupercontentsmask;
7174 trace.skipmaterialflagsmask = skipmaterialflagsmask;
7175 Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask);
7176 return trace.hitsupercontents;
7182 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)
7184 Mod_CollisionBIH_TraceLineShared(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, skipsupercontentsmask, skipmaterialflagsmask, &model->render_bih);
7188 bih_t *Mod_MakeCollisionBIH(model_t *model, qbool userendersurfaces, bih_t *out)
7196 int nummodelbrushes = model->nummodelbrushes;
7198 const int *collisionelement3i;
7199 const float *collisionvertex3f;
7200 const int *renderelement3i;
7201 const float *rendervertex3f;
7202 bih_leaf_t *bihleafs;
7203 bih_node_t *bihnodes;
7205 int *temp_leafsortscratch;
7206 const msurface_t *surface;
7207 const q3mbrush_t *brush;
7209 // find out how many BIH leaf nodes we need
7211 if (userendersurfaces)
7213 for (j = model->submodelsurfaces_start;j < model->submodelsurfaces_end;j++)
7214 bihnumleafs += model->data_surfaces[j].num_triangles;
7218 for (brushindex = 0, brush = model->brush.data_brushes + brushindex+model->firstmodelbrush;brushindex < nummodelbrushes;brushindex++, brush++)
7219 if (brush->colbrushf)
7221 for (j = model->submodelsurfaces_start;j < model->submodelsurfaces_end;j++)
7223 if (model->data_surfaces[j].texture->basematerialflags & MATERIALFLAG_MESHCOLLISIONS)
7224 bihnumleafs += model->data_surfaces[j].num_triangles + model->data_surfaces[j].num_collisiontriangles;
7226 bihnumleafs += model->data_surfaces[j].num_collisiontriangles;
7233 // allocate the memory for the BIH leaf nodes
7234 bihleafs = (bih_leaf_t *)Mem_Alloc(loadmodel->mempool, sizeof(bih_leaf_t) * bihnumleafs);
7236 // now populate the BIH leaf nodes
7239 // add render surfaces
7240 renderelement3i = model->surfmesh.data_element3i;
7241 rendervertex3f = model->surfmesh.data_vertex3f;
7242 for (j = model->submodelsurfaces_start; j < model->submodelsurfaces_end; j++)
7244 surface = model->data_surfaces + j;
7245 for (triangleindex = 0, e = renderelement3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
7247 if (!userendersurfaces && !(surface->texture->basematerialflags & MATERIALFLAG_MESHCOLLISIONS))
7249 bihleafs[bihleafindex].type = BIH_RENDERTRIANGLE;
7250 bihleafs[bihleafindex].textureindex = surface->texture - model->data_textures;
7251 bihleafs[bihleafindex].surfaceindex = surface - model->data_surfaces;
7252 bihleafs[bihleafindex].itemindex = triangleindex+surface->num_firsttriangle;
7253 bihleafs[bihleafindex].mins[0] = min(rendervertex3f[3*e[0]+0], min(rendervertex3f[3*e[1]+0], rendervertex3f[3*e[2]+0])) - 1;
7254 bihleafs[bihleafindex].mins[1] = min(rendervertex3f[3*e[0]+1], min(rendervertex3f[3*e[1]+1], rendervertex3f[3*e[2]+1])) - 1;
7255 bihleafs[bihleafindex].mins[2] = min(rendervertex3f[3*e[0]+2], min(rendervertex3f[3*e[1]+2], rendervertex3f[3*e[2]+2])) - 1;
7256 bihleafs[bihleafindex].maxs[0] = max(rendervertex3f[3*e[0]+0], max(rendervertex3f[3*e[1]+0], rendervertex3f[3*e[2]+0])) + 1;
7257 bihleafs[bihleafindex].maxs[1] = max(rendervertex3f[3*e[0]+1], max(rendervertex3f[3*e[1]+1], rendervertex3f[3*e[2]+1])) + 1;
7258 bihleafs[bihleafindex].maxs[2] = max(rendervertex3f[3*e[0]+2], max(rendervertex3f[3*e[1]+2], rendervertex3f[3*e[2]+2])) + 1;
7263 if (!userendersurfaces)
7265 // add collision brushes
7266 for (brushindex = 0, brush = model->brush.data_brushes + brushindex+model->firstmodelbrush;brushindex < nummodelbrushes;brushindex++, brush++)
7268 if (!brush->colbrushf)
7270 bihleafs[bihleafindex].type = BIH_BRUSH;
7271 bihleafs[bihleafindex].textureindex = brush->texture - model->data_textures;
7272 bihleafs[bihleafindex].surfaceindex = -1;
7273 bihleafs[bihleafindex].itemindex = brushindex+model->firstmodelbrush;
7274 VectorCopy(brush->colbrushf->mins, bihleafs[bihleafindex].mins);
7275 VectorCopy(brush->colbrushf->maxs, bihleafs[bihleafindex].maxs);
7279 // add collision surfaces
7280 collisionelement3i = model->brush.data_collisionelement3i;
7281 collisionvertex3f = model->brush.data_collisionvertex3f;
7282 for (j = model->submodelsurfaces_start; j < model->submodelsurfaces_end; j++)
7284 surface = model->data_surfaces + j;
7285 for (triangleindex = 0, e = collisionelement3i + 3*surface->num_firstcollisiontriangle;triangleindex < surface->num_collisiontriangles;triangleindex++, e += 3)
7287 bihleafs[bihleafindex].type = BIH_COLLISIONTRIANGLE;
7288 bihleafs[bihleafindex].textureindex = surface->texture - model->data_textures;
7289 bihleafs[bihleafindex].surfaceindex = surface - model->data_surfaces;
7290 bihleafs[bihleafindex].itemindex = triangleindex+surface->num_firstcollisiontriangle;
7291 bihleafs[bihleafindex].mins[0] = min(collisionvertex3f[3*e[0]+0], min(collisionvertex3f[3*e[1]+0], collisionvertex3f[3*e[2]+0])) - 1;
7292 bihleafs[bihleafindex].mins[1] = min(collisionvertex3f[3*e[0]+1], min(collisionvertex3f[3*e[1]+1], collisionvertex3f[3*e[2]+1])) - 1;
7293 bihleafs[bihleafindex].mins[2] = min(collisionvertex3f[3*e[0]+2], min(collisionvertex3f[3*e[1]+2], collisionvertex3f[3*e[2]+2])) - 1;
7294 bihleafs[bihleafindex].maxs[0] = max(collisionvertex3f[3*e[0]+0], max(collisionvertex3f[3*e[1]+0], collisionvertex3f[3*e[2]+0])) + 1;
7295 bihleafs[bihleafindex].maxs[1] = max(collisionvertex3f[3*e[0]+1], max(collisionvertex3f[3*e[1]+1], collisionvertex3f[3*e[2]+1])) + 1;
7296 bihleafs[bihleafindex].maxs[2] = max(collisionvertex3f[3*e[0]+2], max(collisionvertex3f[3*e[1]+2], collisionvertex3f[3*e[2]+2])) + 1;
7302 // allocate buffers for the produced and temporary data
7303 bihmaxnodes = bihnumleafs + 1;
7304 bihnodes = (bih_node_t *)Mem_Alloc(loadmodel->mempool, sizeof(bih_node_t) * bihmaxnodes);
7305 temp_leafsort = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int) * bihnumleafs * 2);
7306 temp_leafsortscratch = temp_leafsort + bihnumleafs;
7309 BIH_Build(out, bihnumleafs, bihleafs, bihmaxnodes, bihnodes, temp_leafsort, temp_leafsortscratch);
7311 // we're done with the temporary data
7312 Mem_Free(temp_leafsort);
7314 // resize the BIH nodes array if it over-allocated
7315 if (out->maxnodes > out->numnodes)
7317 out->maxnodes = out->numnodes;
7318 out->nodes = (bih_node_t *)Mem_Realloc(loadmodel->mempool, out->nodes, out->numnodes * sizeof(bih_node_t));
7324 static int Mod_Q3BSP_SuperContentsFromNativeContents(int nativecontents)
7326 int supercontents = 0;
7327 if (nativecontents & CONTENTSQ3_SOLID)
7328 supercontents |= SUPERCONTENTS_SOLID;
7329 if (nativecontents & CONTENTSQ3_WATER)
7330 supercontents |= SUPERCONTENTS_WATER;
7331 if (nativecontents & CONTENTSQ3_SLIME)
7332 supercontents |= SUPERCONTENTS_SLIME;
7333 if (nativecontents & CONTENTSQ3_LAVA)
7334 supercontents |= SUPERCONTENTS_LAVA;
7335 if (nativecontents & CONTENTSQ3_BODY)
7336 supercontents |= SUPERCONTENTS_BODY;
7337 if (nativecontents & CONTENTSQ3_CORPSE)
7338 supercontents |= SUPERCONTENTS_CORPSE;
7339 if (nativecontents & CONTENTSQ3_NODROP)
7340 supercontents |= SUPERCONTENTS_NODROP;
7341 if (nativecontents & CONTENTSQ3_PLAYERCLIP)
7342 supercontents |= SUPERCONTENTS_PLAYERCLIP;
7343 if (nativecontents & CONTENTSQ3_MONSTERCLIP)
7344 supercontents |= SUPERCONTENTS_MONSTERCLIP;
7345 if (nativecontents & CONTENTSQ3_DONOTENTER)
7346 supercontents |= SUPERCONTENTS_DONOTENTER;
7347 if (nativecontents & CONTENTSQ3_BOTCLIP)
7348 supercontents |= SUPERCONTENTS_BOTCLIP;
7349 if (!(nativecontents & CONTENTSQ3_TRANSLUCENT))
7350 supercontents |= SUPERCONTENTS_OPAQUE;
7351 return supercontents;
7354 static int Mod_Q3BSP_NativeContentsFromSuperContents(int supercontents)
7356 int nativecontents = 0;
7357 if (supercontents & SUPERCONTENTS_SOLID)
7358 nativecontents |= CONTENTSQ3_SOLID;
7359 if (supercontents & SUPERCONTENTS_WATER)
7360 nativecontents |= CONTENTSQ3_WATER;
7361 if (supercontents & SUPERCONTENTS_SLIME)
7362 nativecontents |= CONTENTSQ3_SLIME;
7363 if (supercontents & SUPERCONTENTS_LAVA)
7364 nativecontents |= CONTENTSQ3_LAVA;
7365 if (supercontents & SUPERCONTENTS_BODY)
7366 nativecontents |= CONTENTSQ3_BODY;
7367 if (supercontents & SUPERCONTENTS_CORPSE)
7368 nativecontents |= CONTENTSQ3_CORPSE;
7369 if (supercontents & SUPERCONTENTS_NODROP)
7370 nativecontents |= CONTENTSQ3_NODROP;
7371 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
7372 nativecontents |= CONTENTSQ3_PLAYERCLIP;
7373 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
7374 nativecontents |= CONTENTSQ3_MONSTERCLIP;
7375 if (supercontents & SUPERCONTENTS_DONOTENTER)
7376 nativecontents |= CONTENTSQ3_DONOTENTER;
7377 if (supercontents & SUPERCONTENTS_BOTCLIP)
7378 nativecontents |= CONTENTSQ3_BOTCLIP;
7379 if (!(supercontents & SUPERCONTENTS_OPAQUE))
7380 nativecontents |= CONTENTSQ3_TRANSLUCENT;
7381 return nativecontents;
7384 static void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
7389 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
7390 node = node->children[1];
7392 numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
7393 if (loadmodel->brush.num_leafs < numleafs)
7394 loadmodel->brush.num_leafs = numleafs;
7397 static void Mod_Q3BSP_Load(model_t *mod, void *buffer, void *bufferend)
7400 q3dheader_t *header;
7401 float corner[3], yawradius, modelradius;
7403 mod->modeldatatypestring = "Q3BSP";
7405 mod->type = mod_brushq3;
7406 mod->brush.ishlbsp = false;
7407 mod->brush.isbsp2rmqe = false;
7408 mod->brush.isbsp2 = false;
7409 mod->brush.isq2bsp = false;
7410 mod->brush.isq3bsp = true;
7411 mod->brush.skymasking = true;
7412 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
7415 header = (q3dheader_t *)buffer;
7416 if((char *) bufferend < (char *) buffer + sizeof(q3dheader_t))
7417 Host_Error("Mod_Q3BSP_Load: %s is smaller than its header", mod->name);
7419 i = LittleLong(header->version);
7420 if (i != Q3BSPVERSION && i != Q3BSPVERSION_IG && i != Q3BSPVERSION_LIVE)
7421 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
7423 mod->soundfromcenter = true;
7424 mod->TraceBox = Mod_CollisionBIH_TraceBox;
7425 mod->TraceBrush = Mod_CollisionBIH_TraceBrush;
7426 mod->TraceLine = Mod_CollisionBIH_TraceLine;
7427 mod->TracePoint = Mod_CollisionBIH_TracePoint;
7428 mod->PointSuperContents = Mod_CollisionBIH_PointSuperContents;
7429 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
7430 mod->brush.TraceLineOfSight = Mod_Q3BSP_TraceLineOfSight;
7431 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
7432 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
7433 mod->brush.GetPVS = Mod_BSP_GetPVS;
7434 mod->brush.FatPVS = Mod_BSP_FatPVS;
7435 mod->brush.BoxTouchingPVS = Mod_BSP_BoxTouchingPVS;
7436 mod->brush.BoxTouchingLeafPVS = Mod_BSP_BoxTouchingLeafPVS;
7437 mod->brush.BoxTouchingVisibleLeafs = Mod_BSP_BoxTouchingVisibleLeafs;
7438 mod->brush.FindBoxClusters = Mod_BSP_FindBoxClusters;
7439 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
7440 mod->brush.FindNonSolidLocation = Mod_BSP_FindNonSolidLocation;
7441 mod->brush.AmbientSoundLevelsForPoint = NULL;
7442 mod->brush.RoundUpToHullSize = NULL;
7443 mod->brush.PointInLeaf = Mod_BSP_PointInLeaf;
7444 mod->Draw = R_Mod_Draw;
7445 mod->DrawDepth = R_Mod_DrawDepth;
7446 mod->DrawDebug = R_Mod_DrawDebug;
7447 mod->DrawPrepass = R_Mod_DrawPrepass;
7448 mod->GetLightInfo = R_Mod_GetLightInfo;
7449 mod->CompileShadowMap = R_Mod_CompileShadowMap;
7450 mod->DrawShadowMap = R_Mod_DrawShadowMap;
7451 mod->DrawLight = R_Mod_DrawLight;
7453 mod_base = (unsigned char *)header;
7455 // swap all the lumps
7456 header->ident = LittleLong(header->ident);
7457 header->version = LittleLong(header->version);
7458 lumps = (header->version == Q3BSPVERSION_LIVE) ? Q3HEADER_LUMPS_LIVE : Q3HEADER_LUMPS;
7459 for (i = 0;i < lumps;i++)
7461 j = (header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs));
7462 if((char *) bufferend < (char *) buffer + j)
7463 Host_Error("Mod_Q3BSP_Load: %s has a lump that starts outside the file!", mod->name);
7464 j += (header->lumps[i].filelen = LittleLong(header->lumps[i].filelen));
7465 if((char *) bufferend < (char *) buffer + j)
7466 Host_Error("Mod_Q3BSP_Load: %s has a lump that ends outside the file!", mod->name);
7469 * NO, do NOT clear them!
7470 * they contain actual data referenced by other stuff.
7471 * Instead, before using the advertisements lump, check header->versio
7473 * Sorry, but otherwise it breaks memory of the first lump.
7474 for (i = lumps;i < Q3HEADER_LUMPS_MAX;i++)
7476 header->lumps[i].fileofs = 0;
7477 header->lumps[i].filelen = 0;
7481 mod->brush.qw_md4sum = 0;
7482 mod->brush.qw_md4sum2 = 0;
7483 for (i = 0;i < lumps;i++)
7485 if (i == Q3LUMP_ENTITIES)
7487 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
7488 if (i == Q3LUMP_PVS || i == Q3LUMP_LEAFS || i == Q3LUMP_NODES)
7490 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
7492 // all this checksumming can take a while, so let's send keepalives here too
7493 CL_KeepaliveMessage(false);
7496 // allocate a texture pool if we need it
7497 if (mod->texturepool == NULL)
7498 mod->texturepool = R_AllocTexturePool();
7500 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
7501 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
7502 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
7503 if (header->version == Q3BSPVERSION_IG)
7504 Mod_Q3BSP_LoadBrushSides_IG(&header->lumps[Q3LUMP_BRUSHSIDES]);
7506 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
7507 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
7508 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
7509 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
7510 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
7511 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS], &header->lumps[Q3LUMP_FACES]);
7512 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
7513 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
7514 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
7515 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
7516 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
7517 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
7518 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
7519 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
7520 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
7522 // the MakePortals code works fine on the q3bsp data as well
7523 if (mod_bsp_portalize.integer)
7524 Mod_BSP_MakePortals();
7526 // FIXME: shader alpha should replace r_wateralpha support in q3bsp
7527 loadmodel->brush.supportwateralpha = true;
7529 loadmodel->brush.num_leafs = 0;
7530 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
7532 if (loadmodel->brush.numsubmodels)
7533 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
7536 mod->modelsurfaces_sorted = (int*)Mem_Alloc(loadmodel->mempool, mod->num_surfaces * sizeof(*mod->modelsurfaces_sorted));
7537 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
7542 // duplicate the basic information
7543 dpsnprintf(name, sizeof(name), "*%i", i);
7544 mod = Mod_FindName(name, loadmodel->name);
7545 // copy the base model to this one
7547 // rename the clone back to its proper name
7548 strlcpy(mod->name, name, sizeof(mod->name));
7549 mod->brush.parentmodel = loadmodel;
7550 // textures and memory belong to the main model
7551 mod->texturepool = NULL;
7552 mod->mempool = NULL;
7553 mod->brush.GetPVS = NULL;
7554 mod->brush.FatPVS = NULL;
7555 mod->brush.BoxTouchingPVS = NULL;
7556 mod->brush.BoxTouchingLeafPVS = NULL;
7557 mod->brush.BoxTouchingVisibleLeafs = NULL;
7558 mod->brush.FindBoxClusters = NULL;
7559 mod->brush.LightPoint = NULL;
7560 mod->brush.AmbientSoundLevelsForPoint = NULL;
7562 mod->brush.submodel = i;
7563 if (loadmodel->brush.submodels)
7564 loadmodel->brush.submodels[i] = mod;
7566 // make the model surface list (used by shadowing/lighting)
7567 mod->submodelsurfaces_start = mod->brushq3.data_models[i].firstface;
7568 mod->submodelsurfaces_end = mod->brushq3.data_models[i].firstface + mod->brushq3.data_models[i].numfaces;
7569 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
7570 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
7572 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
7573 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
7574 // enlarge the bounding box to enclose all geometry of this model,
7575 // because q3map2 sometimes lies (mostly to affect the lightgrid),
7576 // which can in turn mess up the farclip (as well as culling when
7577 // outside the level - an unimportant concern)
7579 //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]);
7580 for (j = mod->submodelsurfaces_start;j < mod->submodelsurfaces_end;j++)
7582 const msurface_t *surface = mod->data_surfaces + j;
7583 const float *v = mod->surfmesh.data_vertex3f + 3 * surface->num_firstvertex;
7585 if (!surface->num_vertices)
7587 for (k = 0;k < surface->num_vertices;k++, v += 3)
7589 mod->normalmins[0] = min(mod->normalmins[0], v[0]);
7590 mod->normalmins[1] = min(mod->normalmins[1], v[1]);
7591 mod->normalmins[2] = min(mod->normalmins[2], v[2]);
7592 mod->normalmaxs[0] = max(mod->normalmaxs[0], v[0]);
7593 mod->normalmaxs[1] = max(mod->normalmaxs[1], v[1]);
7594 mod->normalmaxs[2] = max(mod->normalmaxs[2], v[2]);
7597 //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]);
7598 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
7599 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
7600 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
7601 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
7602 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
7603 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
7604 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
7605 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
7606 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
7607 mod->yawmins[2] = mod->normalmins[2];
7608 mod->yawmaxs[2] = mod->normalmaxs[2];
7609 mod->radius = modelradius;
7610 mod->radius2 = modelradius * modelradius;
7612 Mod_SetDrawSkyAndWater(mod);
7613 Mod_MakeCollisionBIH(mod, false, &mod->collision_bih);
7614 Mod_MakeCollisionBIH(mod, true, &mod->render_bih);
7616 // generate VBOs and other shared data before cloning submodels
7622 // make the model surface list (used by shadowing/lighting)
7623 Mod_MakeSortedSurfaces(loadmodel);
7625 if (mod_q3bsp_sRGBlightmaps.integer)
7627 if (vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
7629 // actually we do in sRGB fallback with sRGB lightmaps: Image_sRGBFloatFromLinear_Lightmap(Image_LinearFloatFromsRGBFloat(x))
7630 // neutral point is at Image_sRGBFloatFromLinearFloat(0.5)
7631 // so we need to map Image_sRGBFloatFromLinearFloat(0.5) to 0.5
7632 // factor is 0.5 / Image_sRGBFloatFromLinearFloat(0.5)
7633 //loadmodel->lightmapscale *= 0.679942f; // fixes neutral level
7635 else // if this is NOT set, regular rendering looks right by this requirement anyway
7638 // we want color 1 to do the same as without sRGB
7639 // so, we want to map 1 to Image_LinearFloatFromsRGBFloat(2) instead of to 2
7640 loadmodel->lightmapscale *= 2.476923f; // fixes max level
7643 // neutral level 0.5 gets uploaded as sRGB and becomes Image_LinearFloatFromsRGBFloat(0.5)
7644 // we need to undo that
7645 loadmodel->lightmapscale *= 2.336f; // fixes neutral level
7649 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);
7652 void Mod_IBSP_Load(model_t *mod, void *buffer, void *bufferend)
7654 int i = LittleLong(((int *)buffer)[1]);
7655 if (i == Q3BSPVERSION || i == Q3BSPVERSION_IG || i == Q3BSPVERSION_LIVE)
7656 Mod_Q3BSP_Load(mod,buffer, bufferend);
7657 else if (i == Q2BSPVERSION)
7658 Mod_Q2BSP_Load(mod,buffer, bufferend);
7660 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i", i);
7663 static void Mod_VBSP_LoadEntities(sizebuf_t *sb)
7665 loadmodel->brush.entities = NULL;
7668 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, sb->cursize + 1);
7669 MSG_ReadBytes(sb, sb->cursize, (unsigned char *)loadmodel->brush.entities);
7670 loadmodel->brush.entities[sb->cursize] = 0;
7673 static void Mod_VBSP_LoadVertexes(sizebuf_t *sb)
7677 int structsize = 12;
7679 if (sb->cursize % structsize)
7680 Host_Error("Mod_VBSP_LoadVertexes: funny lump size in %s",loadmodel->name);
7681 count = sb->cursize / structsize;
7682 out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
7684 loadmodel->brushq1.vertexes = out;
7685 loadmodel->brushq1.numvertexes = count;
7687 for ( i=0 ; i<count ; i++, out++)
7689 out->position[0] = MSG_ReadLittleFloat(sb);
7690 out->position[1] = MSG_ReadLittleFloat(sb);
7691 out->position[2] = MSG_ReadLittleFloat(sb);
7695 static void Mod_VBSP_LoadEdges(sizebuf_t *sb)
7701 if (sb->cursize % structsize)
7702 Host_Error("Mod_VBSP_LoadEdges: funny lump size in %s",loadmodel->name);
7703 count = sb->cursize / structsize;
7704 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
7706 loadmodel->brushq1.edges = out;
7707 loadmodel->brushq1.numedges = count;
7709 for ( i=0 ; i<count ; i++, out++)
7711 out->v[0] = (unsigned short)MSG_ReadLittleShort(sb);
7712 out->v[1] = (unsigned short)MSG_ReadLittleShort(sb);
7714 if ((int)out->v[0] >= loadmodel->brushq1.numvertexes || (int)out->v[1] >= loadmodel->brushq1.numvertexes)
7716 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);
7717 if(!loadmodel->brushq1.numvertexes)
7718 Host_Error("Mod_VBSP_LoadEdges: %s has edges but no vertexes, cannot fix\n", loadmodel->name);
7726 static void Mod_VBSP_LoadSurfedges(sizebuf_t *sb)
7731 if (sb->cursize % structsize)
7732 Host_Error("Mod_VBSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
7733 loadmodel->brushq1.numsurfedges = sb->cursize / structsize;
7734 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
7736 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
7737 loadmodel->brushq1.surfedges[i] = MSG_ReadLittleLong(sb);
7740 static void Mod_VBSP_LoadTextures(sizebuf_t *sb)
7742 Con_Printf(CON_WARN "Mod_VBSP_LoadTextures: Don't know how to do this yet\n");
7745 static void Mod_VBSP_LoadPlanes(sizebuf_t *sb)
7749 int structsize = 20;
7751 if (sb->cursize % structsize)
7752 Host_Error("Mod_VBSP_LoadPlanes: funny lump size in %s", loadmodel->name);
7753 loadmodel->brush.num_planes = sb->cursize / structsize;
7754 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
7756 for (i = 0;i < loadmodel->brush.num_planes;i++, out++)
7758 out->normal[0] = MSG_ReadLittleFloat(sb);
7759 out->normal[1] = MSG_ReadLittleFloat(sb);
7760 out->normal[2] = MSG_ReadLittleFloat(sb);
7761 out->dist = MSG_ReadLittleFloat(sb);
7762 MSG_ReadLittleLong(sb); // type is not used, we use PlaneClassify
7767 static void Mod_VBSP_LoadTexinfo(sizebuf_t *sb)
7770 int i, j, k, count, miptex;
7771 int structsize = 72;
7773 if (sb->cursize % structsize)
7774 Host_Error("Mod_VBSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
7775 count = sb->cursize / structsize;
7776 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
7778 loadmodel->brushq1.texinfo = out;
7779 loadmodel->brushq1.numtexinfo = count;
7781 for (i = 0;i < count;i++, out++)
7783 for (k = 0;k < 2;k++)
7784 for (j = 0;j < 4;j++)
7785 out->vecs[k][j] = MSG_ReadLittleFloat(sb);
7787 for (k = 0;k < 2;k++)
7788 for (j = 0;j < 4;j++)
7789 MSG_ReadLittleFloat(sb); // TODO lightmapVecs
7791 out->q1flags = MSG_ReadLittleLong(sb);
7792 miptex = MSG_ReadLittleLong(sb);
7794 if (out->q1flags & TEX_SPECIAL)
7796 // if texture chosen is NULL or the shader needs a lightmap,
7797 // force to notexture water shader
7798 out->textureindex = loadmodel->num_textures - 1;
7802 // if texture chosen is NULL, force to notexture
7803 out->textureindex = loadmodel->num_textures - 2;
7805 // see if the specified miptex is valid and try to use it instead
7806 if (loadmodel->data_textures)
7808 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
7809 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
7811 out->textureindex = miptex;
7816 static void Mod_VBSP_LoadFaces(sizebuf_t *sb)
7818 msurface_t *surface;
7819 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber, lightmapsize, totallightmapsamples, lightmapoffset, texinfoindex;
7820 float texmins[2], texmaxs[2], val;
7821 rtexture_t *lightmaptexture, *deluxemaptexture;
7823 int structsize = 56;
7825 if (sb->cursize % structsize)
7826 Host_Error("Mod_VBSP_LoadFaces: funny lump size in %s",loadmodel->name);
7827 count = sb->cursize / structsize;
7828 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
7829 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
7831 loadmodel->num_surfaces = count;
7833 loadmodel->brushq1.firstrender = true;
7834 loadmodel->brushq1.lightmapupdateflags = (unsigned char *)Mem_Alloc(loadmodel->mempool, count*sizeof(unsigned char));
7838 for (surfacenum = 0;surfacenum < count;surfacenum++)
7840 numedges = BuffLittleShort(sb->data + structsize * surfacenum + 8);
7841 totalverts += numedges;
7842 totaltris += numedges - 2;
7845 Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false);
7847 lightmaptexture = NULL;
7848 deluxemaptexture = r_texture_blanknormalmap;
7850 lightmapsize = bound(256, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d);
7851 totallightmapsamples = 0;
7855 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
7857 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
7858 planenum = (unsigned short)MSG_ReadLittleShort(sb);
7859 /*side = */MSG_ReadLittleShort(sb); // TODO support onNode?
7860 firstedge = MSG_ReadLittleLong(sb);
7861 numedges = (unsigned short)MSG_ReadLittleShort(sb);
7862 texinfoindex = (unsigned short)MSG_ReadLittleShort(sb);
7863 MSG_ReadLittleLong(sb); // skipping over dispinfo and surfaceFogVolumeID, both short
7864 for (i = 0;i < MAXLIGHTMAPS;i++)
7865 surface->lightmapinfo->styles[i] = MSG_ReadByte(sb);
7866 lightmapoffset = MSG_ReadLittleLong(sb);
7868 // FIXME: validate edges, texinfo, etc?
7869 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)
7870 Host_Error("Mod_VBSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)", firstedge, numedges, loadmodel->brushq1.numsurfedges);
7871 if ((unsigned int) texinfoindex >= (unsigned int) loadmodel->brushq1.numtexinfo)
7872 Host_Error("Mod_VBSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)", texinfoindex, loadmodel->brushq1.numtexinfo);
7873 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
7874 Host_Error("Mod_VBSP_LoadFaces: invalid plane index %i (model has %i planes)", planenum, loadmodel->brush.num_planes);
7876 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + texinfoindex;
7877 surface->texture = loadmodel->data_textures + surface->lightmapinfo->texinfo->textureindex;
7879 // Q2BSP doesn't use lightmaps on sky or warped surfaces (water), but still has a lightofs of 0
7880 if (lightmapoffset == 0 && (surface->texture->q2flags & (Q2SURF_SKY | Q2SURF_WARP)))
7881 lightmapoffset = -1;
7883 //surface->flags = surface->texture->flags;
7884 //if (LittleShort(in->side))
7885 // surface->flags |= SURF_PLANEBACK;
7886 //surface->plane = loadmodel->brush.data_planes + planenum;
7888 surface->num_firstvertex = totalverts;
7889 surface->num_vertices = numedges;
7890 surface->num_firsttriangle = totaltris;
7891 surface->num_triangles = numedges - 2;
7892 totalverts += numedges;
7893 totaltris += numedges - 2;
7895 // convert edges back to a normal polygon
7896 for (i = 0;i < surface->num_vertices;i++)
7898 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
7900 // note: the q1bsp format does not allow a 0 surfedge (it would have no negative counterpart)
7902 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
7904 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
7905 s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
7906 t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
7907 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
7908 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
7909 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
7910 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
7911 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
7914 for (i = 0;i < surface->num_triangles;i++)
7916 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
7917 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
7918 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
7921 // compile additional data about the surface geometry
7922 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);
7923 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);
7924 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
7926 // generate surface extents information
7927 texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
7928 texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
7929 for (i = 1;i < surface->num_vertices;i++)
7931 for (j = 0;j < 2;j++)
7933 val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
7934 texmins[j] = min(texmins[j], val);
7935 texmaxs[j] = max(texmaxs[j], val);
7938 for (i = 0;i < 2;i++)
7940 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
7941 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
7944 smax = surface->lightmapinfo->extents[0] >> 4;
7945 tmax = surface->lightmapinfo->extents[1] >> 4;
7946 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
7947 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
7950 surface->lightmaptexture = NULL;
7951 surface->deluxemaptexture = r_texture_blanknormalmap;
7952 if (lightmapoffset == -1)
7954 surface->lightmapinfo->samples = NULL;
7956 // give non-lightmapped water a 1x white lightmap
7957 if (!loadmodel->brush.isq2bsp && surface->texture->name[0] == '*' && (surface->lightmapinfo->texinfo->q1flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
7959 surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
7960 surface->lightmapinfo->styles[0] = 0;
7961 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
7966 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + lightmapoffset;
7968 // check if we should apply a lightmap to this
7969 if (!(surface->lightmapinfo->texinfo->q1flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
7971 if (ssize > 256 || tsize > 256)
7972 Host_Error("Bad surface extents");
7974 if (lightmapsize < ssize)
7975 lightmapsize = ssize;
7976 if (lightmapsize < tsize)
7977 lightmapsize = tsize;
7979 totallightmapsamples += ssize*tsize;
7981 // force lightmap upload on first time seeing the surface
7983 // additionally this is used by the later code to see if a
7984 // lightmap is needed on this surface (rather than duplicating the
7986 loadmodel->brushq1.lightmapupdateflags[surfacenum] = true;
7987 loadmodel->lit = true;
7991 // small maps (such as ammo boxes especially) don't need big lightmap
7992 // textures, so this code tries to guess a good size based on
7993 // totallightmapsamples (size of the lightmaps lump basically), as well as
7994 // trying to max out the size if there is a lot of lightmap data to store
7995 // additionally, never choose a lightmapsize that is smaller than the
7996 // largest surface encountered (as it would fail)
7998 for (lightmapsize = 64; (lightmapsize < i) && (lightmapsize < bound(128, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d)) && (totallightmapsamples > lightmapsize*lightmapsize); lightmapsize*=2)
8001 // now that we've decided the lightmap texture size, we can do the rest
8002 if (cls.state != ca_dedicated)
8004 int stainmapsize = 0;
8005 mod_alloclightmap_state_t allocState;
8007 Mod_AllocLightmap_Init(&allocState, loadmodel->mempool, lightmapsize, lightmapsize);
8008 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
8010 int iu, iv, lightmapx = 0, lightmapy = 0;
8011 float u, v, ubase, vbase, uscale, vscale;
8013 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
8016 smax = surface->lightmapinfo->extents[0] >> 4;
8017 tmax = surface->lightmapinfo->extents[1] >> 4;
8018 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
8019 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
8020 stainmapsize += ssize * tsize * 3;
8022 if (!lightmaptexture || !Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy))
8024 // allocate a texture pool if we need it
8025 if (loadmodel->texturepool == NULL)
8026 loadmodel->texturepool = R_AllocTexturePool();
8027 // could not find room, make a new lightmap
8028 loadmodel->brushq3.num_mergedlightmaps = lightmapnumber + 1;
8029 loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Realloc(loadmodel->mempool, loadmodel->brushq3.data_lightmaps, loadmodel->brushq3.num_mergedlightmaps * sizeof(loadmodel->brushq3.data_lightmaps[0]));
8030 loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Realloc(loadmodel->mempool, loadmodel->brushq3.data_deluxemaps, loadmodel->brushq3.num_mergedlightmaps * sizeof(loadmodel->brushq3.data_deluxemaps[0]));
8031 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);
8032 if (loadmodel->brushq1.nmaplightdata)
8033 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);
8035 Mod_AllocLightmap_Reset(&allocState);
8036 Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy);
8038 surface->lightmaptexture = lightmaptexture;
8039 surface->deluxemaptexture = deluxemaptexture;
8040 surface->lightmapinfo->lightmaporigin[0] = lightmapx;
8041 surface->lightmapinfo->lightmaporigin[1] = lightmapy;
8043 uscale = 1.0f / (float)lightmapsize;
8044 vscale = 1.0f / (float)lightmapsize;
8045 ubase = lightmapx * uscale;
8046 vbase = lightmapy * vscale;
8048 for (i = 0;i < surface->num_vertices;i++)
8050 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);
8051 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);
8052 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
8053 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
8054 // LadyHavoc: calc lightmap data offset for vertex lighting to use
8057 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
8061 if (cl_stainmaps.integer)
8063 // allocate stainmaps for permanent marks on walls and clear white
8064 unsigned char *stainsamples = NULL;
8065 stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, stainmapsize);
8066 memset(stainsamples, 255, stainmapsize);
8068 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
8070 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
8072 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
8073 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
8074 surface->lightmapinfo->stainsamples = stainsamples;
8075 stainsamples += ssize * tsize * 3;
8080 // generate ushort elements array if possible
8081 if (loadmodel->surfmesh.data_element3s)
8082 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
8083 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
8087 // Cloudwalk: Wasn't sober when I wrote this. I screamed and ran away at the face loader
8088 void Mod_VBSP_Load(model_t *mod, void *buffer, void *bufferend)
8090 static cvar_t *testing = NULL; // TEMPORARY
8093 sizebuf_t lumpsb[HL2HEADER_LUMPS];
8095 if(!testing || !testing->integer)
8098 testing = Cvar_Get(&cvars_all, "mod_bsp_vbsptest", "0", CF_CLIENT | CF_SERVER, "uhhh");
8099 Host_Error("Mod_VBSP_Load: not yet fully implemented. Change the now-generated \"mod_bsp_vbsptest\" to 1 if you wish to test this");
8104 MSG_InitReadBuffer(&sb, (unsigned char *)buffer, (unsigned char *)bufferend - (unsigned char *)buffer);
8106 mod->type = mod_brushhl2;
8108 MSG_ReadLittleLong(&sb);
8109 MSG_ReadLittleLong(&sb); // TODO version check
8111 mod->modeldatatypestring = "VBSP";
8114 for (i = 0; i < HL2HEADER_LUMPS; i++)
8116 int offset = MSG_ReadLittleLong(&sb);
8117 int size = MSG_ReadLittleLong(&sb);
8118 MSG_ReadLittleLong(&sb); // TODO support version
8119 MSG_ReadLittleLong(&sb); // TODO support ident
8120 if (offset < 0 || offset + size > sb.cursize)
8121 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);
8122 MSG_InitReadBuffer(&lumpsb[i], sb.data + offset, size);
8125 MSG_ReadLittleLong(&sb); // TODO support revision field
8127 mod->soundfromcenter = true;
8128 mod->TraceBox = Mod_CollisionBIH_TraceBox;
8129 mod->TraceBrush = Mod_CollisionBIH_TraceBrush;
8130 mod->TraceLine = Mod_CollisionBIH_TraceLine;
8131 mod->TracePoint = Mod_CollisionBIH_TracePoint;
8132 mod->PointSuperContents = Mod_CollisionBIH_PointSuperContents;
8133 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
8134 mod->brush.TraceLineOfSight = Mod_Q3BSP_TraceLineOfSight; // probably not correct
8135 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents; // probably not correct
8136 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents; // probably not correct
8137 mod->brush.GetPVS = Mod_BSP_GetPVS;
8138 mod->brush.FatPVS = Mod_BSP_FatPVS;
8139 mod->brush.BoxTouchingPVS = Mod_BSP_BoxTouchingPVS;
8140 mod->brush.BoxTouchingLeafPVS = Mod_BSP_BoxTouchingLeafPVS;
8141 mod->brush.BoxTouchingVisibleLeafs = Mod_BSP_BoxTouchingVisibleLeafs;
8142 mod->brush.FindBoxClusters = Mod_BSP_FindBoxClusters;
8143 mod->brush.LightPoint = Mod_Q3BSP_LightPoint; // probably not correct
8144 mod->brush.FindNonSolidLocation = Mod_BSP_FindNonSolidLocation;
8145 mod->brush.AmbientSoundLevelsForPoint = NULL;
8146 mod->brush.RoundUpToHullSize = NULL;
8147 mod->brush.PointInLeaf = Mod_BSP_PointInLeaf;
8148 mod->Draw = R_Mod_Draw;
8149 mod->DrawDepth = R_Mod_DrawDepth;
8150 mod->DrawDebug = R_Mod_DrawDebug;
8151 mod->DrawPrepass = R_Mod_DrawPrepass;
8152 mod->GetLightInfo = R_Mod_GetLightInfo;
8153 mod->CompileShadowMap = R_Mod_CompileShadowMap;
8154 mod->DrawShadowMap = R_Mod_DrawShadowMap;
8155 mod->DrawLight = R_Mod_DrawLight;
8157 // allocate a texture pool if we need it
8158 if (mod->texturepool == NULL)
8159 mod->texturepool = R_AllocTexturePool();
8161 Mod_VBSP_LoadEntities(&lumpsb[HL2LUMP_ENTITIES]);
8162 Mod_VBSP_LoadVertexes(&lumpsb[HL2LUMP_VERTEXES]);
8163 Mod_VBSP_LoadEdges(&lumpsb[HL2LUMP_EDGES]);
8164 Mod_VBSP_LoadSurfedges(&lumpsb[HL2LUMP_SURFEDGES]);
8165 Mod_VBSP_LoadTextures(&lumpsb[HL2LUMP_TEXDATA/*?*/]);
8166 //Mod_VBSP_LoadLighting(&lumpsb[HL2LUMP_LIGHTING]);
8167 Mod_VBSP_LoadPlanes(&lumpsb[HL2LUMP_PLANES]);
8168 Mod_VBSP_LoadTexinfo(&lumpsb[HL2LUMP_TEXINFO]);
8171 Mod_VBSP_LoadFaces(&lumpsb[HL2LUMP_FACES]);
8175 void Mod_MAP_Load(model_t *mod, void *buffer, void *bufferend)
8177 Host_Error("Mod_MAP_Load: not yet implemented");
8180 typedef struct objvertex_s
8191 static unsigned char nobsp_pvs[1] = {1};
8193 void Mod_OBJ_Load(model_t *mod, void *buffer, void *bufferend)
8195 const char *textbase = (char *)buffer, *text = textbase;
8199 char materialname[MAX_QPATH];
8200 int i, j, l, numvertices, firstvertex, firsttriangle, elementindex, vertexindex, surfacevertices, surfacetriangles, surfaceelements, submodelindex = 0;
8201 int index1, index2, index3;
8202 objvertex_t vfirst, vprev, vcurrent;
8205 int numtriangles = 0;
8206 int maxtriangles = 0;
8207 objvertex_t *vertices = NULL;
8209 int maxtextures = 0, numtextures = 0, textureindex = 0;
8210 int maxv = 0, numv = 1;
8211 int maxvt = 0, numvt = 1;
8212 int maxvn = 0, numvn = 1;
8213 char *texturenames = NULL;
8214 float dist, modelradius, modelyawradius, yawradius;
8215 float *obj_v = NULL;
8216 float *obj_vt = NULL;
8217 float *obj_vn = NULL;
8221 objvertex_t *thisvertex = NULL;
8222 int vertexhashindex;
8223 int *vertexhashtable = NULL;
8224 objvertex_t *vertexhashdata = NULL;
8225 objvertex_t *vdata = NULL;
8226 int vertexhashsize = 0;
8227 int vertexhashcount = 0;
8228 skinfile_t *skinfiles = NULL;
8229 unsigned char *data = NULL;
8230 int *submodelfirstsurface;
8231 msurface_t *tempsurface;
8232 msurface_t *tempsurfaces;
8234 memset(&vfirst, 0, sizeof(vfirst));
8235 memset(&vprev, 0, sizeof(vprev));
8236 memset(&vcurrent, 0, sizeof(vcurrent));
8238 dpsnprintf(materialname, sizeof(materialname), "%s", loadmodel->name);
8240 loadmodel->modeldatatypestring = "OBJ";
8242 loadmodel->type = mod_obj;
8243 loadmodel->soundfromcenter = true;
8244 loadmodel->TraceBox = Mod_CollisionBIH_TraceBox;
8245 loadmodel->TraceBrush = Mod_CollisionBIH_TraceBrush;
8246 loadmodel->TraceLine = Mod_CollisionBIH_TraceLine;
8247 loadmodel->TracePoint = Mod_CollisionBIH_TracePoint_Mesh;
8248 loadmodel->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
8249 loadmodel->PointSuperContents = Mod_CollisionBIH_PointSuperContents_Mesh;
8250 loadmodel->brush.TraceLineOfSight = NULL;
8251 loadmodel->brush.SuperContentsFromNativeContents = NULL;
8252 loadmodel->brush.NativeContentsFromSuperContents = NULL;
8253 loadmodel->brush.GetPVS = NULL;
8254 loadmodel->brush.FatPVS = NULL;
8255 loadmodel->brush.BoxTouchingPVS = NULL;
8256 loadmodel->brush.BoxTouchingLeafPVS = NULL;
8257 loadmodel->brush.BoxTouchingVisibleLeafs = NULL;
8258 loadmodel->brush.FindBoxClusters = NULL;
8259 loadmodel->brush.LightPoint = NULL;
8260 loadmodel->brush.FindNonSolidLocation = NULL;
8261 loadmodel->brush.AmbientSoundLevelsForPoint = NULL;
8262 loadmodel->brush.RoundUpToHullSize = NULL;
8263 loadmodel->brush.PointInLeaf = NULL;
8264 loadmodel->Draw = R_Mod_Draw;
8265 loadmodel->DrawDepth = R_Mod_DrawDepth;
8266 loadmodel->DrawDebug = R_Mod_DrawDebug;
8267 loadmodel->DrawPrepass = R_Mod_DrawPrepass;
8268 loadmodel->GetLightInfo = R_Mod_GetLightInfo;
8269 loadmodel->CompileShadowMap = R_Mod_CompileShadowMap;
8270 loadmodel->DrawShadowMap = R_Mod_DrawShadowMap;
8271 loadmodel->DrawLight = R_Mod_DrawLight;
8273 skinfiles = Mod_LoadSkinFiles();
8274 if (loadmodel->numskins < 1)
8275 loadmodel->numskins = 1;
8277 // make skinscenes for the skins (no groups)
8278 loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
8279 for (i = 0;i < loadmodel->numskins;i++)
8281 loadmodel->skinscenes[i].firstframe = i;
8282 loadmodel->skinscenes[i].framecount = 1;
8283 loadmodel->skinscenes[i].loop = true;
8284 loadmodel->skinscenes[i].framerate = 10;
8290 // we always have model 0, i.e. the first "submodel"
8291 loadmodel->brush.numsubmodels = 1;
8293 // parse the OBJ text now
8296 static char emptyarg[1] = "";
8301 for (linelen = 0;text[linelen] && text[linelen] != '\r' && text[linelen] != '\n';linelen++)
8302 line[linelen] = text[linelen];
8304 for (argc = 0;argc < 4;argc++)
8305 argv[argc] = emptyarg;
8308 while (*s == ' ' || *s == '\t')
8318 while (*s == ' ' || *s == '\t')
8328 if (argv[0][0] == '#')
8330 if (!strcmp(argv[0], "v"))
8334 maxv = max(maxv * 2, 1024);
8335 obj_v = (float *)Mem_Realloc(tempmempool, obj_v, maxv * sizeof(float[3]));
8337 if(mod_obj_orientation.integer)
8339 obj_v[numv*3+0] = atof(argv[1]);
8340 obj_v[numv*3+2] = atof(argv[2]);
8341 obj_v[numv*3+1] = atof(argv[3]);
8345 obj_v[numv*3+0] = atof(argv[1]);
8346 obj_v[numv*3+1] = atof(argv[2]);
8347 obj_v[numv*3+2] = atof(argv[3]);
8351 else if (!strcmp(argv[0], "vt"))
8355 maxvt = max(maxvt * 2, 1024);
8356 obj_vt = (float *)Mem_Realloc(tempmempool, obj_vt, maxvt * sizeof(float[2]));
8358 obj_vt[numvt*2+0] = atof(argv[1]);
8359 obj_vt[numvt*2+1] = 1-atof(argv[2]);
8362 else if (!strcmp(argv[0], "vn"))
8366 maxvn = max(maxvn * 2, 1024);
8367 obj_vn = (float *)Mem_Realloc(tempmempool, obj_vn, maxvn * sizeof(float[3]));
8369 if(mod_obj_orientation.integer)
8371 obj_vn[numvn*3+0] = atof(argv[1]);
8372 obj_vn[numvn*3+2] = atof(argv[2]);
8373 obj_vn[numvn*3+1] = atof(argv[3]);
8377 obj_vn[numvn*3+0] = atof(argv[1]);
8378 obj_vn[numvn*3+1] = atof(argv[2]);
8379 obj_vn[numvn*3+2] = atof(argv[3]);
8383 else if (!strcmp(argv[0], "f"))
8387 if (maxtextures <= numtextures)
8389 maxtextures = max(maxtextures * 2, 256);
8390 texturenames = (char *)Mem_Realloc(loadmodel->mempool, texturenames, maxtextures * MAX_QPATH);
8392 textureindex = numtextures++;
8393 strlcpy(texturenames + textureindex*MAX_QPATH, loadmodel->name, MAX_QPATH);
8395 for (j = 1;j < argc;j++)
8397 index1 = atoi(argv[j]);
8398 while(argv[j][0] && argv[j][0] != '/')
8402 index2 = atoi(argv[j]);
8403 while(argv[j][0] && argv[j][0] != '/')
8407 index3 = atoi(argv[j]);
8408 // negative refers to a recent vertex
8409 // zero means not specified
8410 // positive means an absolute vertex index
8412 index1 = numv - index1;
8414 index2 = numvt - index2;
8416 index3 = numvn - index3;
8417 vcurrent.nextindex = -1;
8418 vcurrent.textureindex = textureindex;
8419 vcurrent.submodelindex = submodelindex;
8420 if (obj_v && index1 >= 0 && index1 < numv)
8421 VectorCopy(obj_v + 3*index1, vcurrent.v);
8422 if (obj_vt && index2 >= 0 && index2 < numvt)
8423 Vector2Copy(obj_vt + 2*index2, vcurrent.vt);
8424 if (obj_vn && index3 >= 0 && index3 < numvn)
8425 VectorCopy(obj_vn + 3*index3, vcurrent.vn);
8426 if (numtriangles == 0)
8428 VectorCopy(vcurrent.v, mins);
8429 VectorCopy(vcurrent.v, maxs);
8433 mins[0] = min(mins[0], vcurrent.v[0]);
8434 mins[1] = min(mins[1], vcurrent.v[1]);
8435 mins[2] = min(mins[2], vcurrent.v[2]);
8436 maxs[0] = max(maxs[0], vcurrent.v[0]);
8437 maxs[1] = max(maxs[1], vcurrent.v[1]);
8438 maxs[2] = max(maxs[2], vcurrent.v[2]);
8444 if (maxtriangles <= numtriangles)
8446 maxtriangles = max(maxtriangles * 2, 32768);
8447 vertices = (objvertex_t*)Mem_Realloc(loadmodel->mempool, vertices, maxtriangles * sizeof(objvertex_t[3]));
8449 if(mod_obj_orientation.integer)
8451 vertices[numtriangles*3+0] = vfirst;
8452 vertices[numtriangles*3+1] = vprev;
8453 vertices[numtriangles*3+2] = vcurrent;
8457 vertices[numtriangles*3+0] = vfirst;
8458 vertices[numtriangles*3+2] = vprev;
8459 vertices[numtriangles*3+1] = vcurrent;
8466 else if (!strcmp(argv[0], "o") || !strcmp(argv[0], "g"))
8468 submodelindex = atof(argv[1]);
8469 loadmodel->brush.numsubmodels = max(submodelindex + 1, loadmodel->brush.numsubmodels);
8471 else if (!strcmp(argv[0], "usemtl"))
8473 for (i = 0;i < numtextures;i++)
8474 if (!strcmp(texturenames+i*MAX_QPATH, argv[1]))
8476 if (i < numtextures)
8480 if (maxtextures <= numtextures)
8482 maxtextures = max(maxtextures * 2, 256);
8483 texturenames = (char *)Mem_Realloc(loadmodel->mempool, texturenames, maxtextures * MAX_QPATH);
8485 textureindex = numtextures++;
8486 strlcpy(texturenames + textureindex*MAX_QPATH, argv[1], MAX_QPATH);
8491 // now that we have the OBJ data loaded as-is, we can convert it
8493 // copy the model bounds, then enlarge the yaw and rotated bounds according to radius
8494 VectorCopy(mins, loadmodel->normalmins);
8495 VectorCopy(maxs, loadmodel->normalmaxs);
8496 dist = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
8497 modelyawradius = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
8498 modelyawradius = dist*dist+modelyawradius*modelyawradius;
8499 modelradius = max(fabs(loadmodel->normalmins[2]), fabs(loadmodel->normalmaxs[2]));
8500 modelradius = modelyawradius + modelradius * modelradius;
8501 modelyawradius = sqrt(modelyawradius);
8502 modelradius = sqrt(modelradius);
8503 loadmodel->yawmins[0] = loadmodel->yawmins[1] = -modelyawradius;
8504 loadmodel->yawmins[2] = loadmodel->normalmins[2];
8505 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius;
8506 loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
8507 loadmodel->rotatedmins[0] = loadmodel->rotatedmins[1] = loadmodel->rotatedmins[2] = -modelradius;
8508 loadmodel->rotatedmaxs[0] = loadmodel->rotatedmaxs[1] = loadmodel->rotatedmaxs[2] = modelradius;
8509 loadmodel->radius = modelradius;
8510 loadmodel->radius2 = modelradius * modelradius;
8512 // allocate storage for triangles
8513 loadmodel->surfmesh.data_element3i = (int *)Mem_Alloc(loadmodel->mempool, numtriangles * sizeof(int[3]));
8514 // allocate vertex hash structures to build an optimal vertex subset
8515 vertexhashsize = numtriangles*2;
8516 vertexhashtable = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int) * vertexhashsize);
8517 memset(vertexhashtable, 0xFF, sizeof(int) * vertexhashsize);
8518 vertexhashdata = (objvertex_t *)Mem_Alloc(loadmodel->mempool, sizeof(*vertexhashdata) * numtriangles*3);
8519 vertexhashcount = 0;
8521 // gather surface stats for assigning vertex/triangle ranges
8525 loadmodel->num_surfaces = 0;
8526 // allocate storage for the worst case number of surfaces, later we resize
8527 tempsurfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, numtextures * loadmodel->brush.numsubmodels * sizeof(msurface_t));
8528 submodelfirstsurface = (int *)Mem_Alloc(loadmodel->mempool, (loadmodel->brush.numsubmodels+1) * sizeof(int));
8529 tempsurface = tempsurfaces;
8530 for (submodelindex = 0;submodelindex < loadmodel->brush.numsubmodels;submodelindex++)
8532 submodelfirstsurface[submodelindex] = loadmodel->num_surfaces;
8533 for (textureindex = 0;textureindex < numtextures;textureindex++)
8535 for (vertexindex = 0;vertexindex < numtriangles*3;vertexindex++)
8537 thisvertex = vertices + vertexindex;
8538 if (thisvertex->submodelindex == submodelindex && thisvertex->textureindex == textureindex)
8541 // skip the surface creation if there are no triangles for it
8542 if (vertexindex == numtriangles*3)
8544 // create a surface for these vertices
8545 surfacevertices = 0;
8546 surfaceelements = 0;
8547 // we hack in a texture index in the surface to be fixed up later...
8548 tempsurface->texture = (texture_t *)((size_t)textureindex);
8549 // calculate bounds as we go
8550 VectorCopy(thisvertex->v, tempsurface->mins);
8551 VectorCopy(thisvertex->v, tempsurface->maxs);
8552 for (;vertexindex < numtriangles*3;vertexindex++)
8554 thisvertex = vertices + vertexindex;
8555 if (thisvertex->submodelindex != submodelindex)
8557 if (thisvertex->textureindex != textureindex)
8559 // add vertex to surface bounds
8560 tempsurface->mins[0] = min(tempsurface->mins[0], thisvertex->v[0]);
8561 tempsurface->mins[1] = min(tempsurface->mins[1], thisvertex->v[1]);
8562 tempsurface->mins[2] = min(tempsurface->mins[2], thisvertex->v[2]);
8563 tempsurface->maxs[0] = max(tempsurface->maxs[0], thisvertex->v[0]);
8564 tempsurface->maxs[1] = max(tempsurface->maxs[1], thisvertex->v[1]);
8565 tempsurface->maxs[2] = max(tempsurface->maxs[2], thisvertex->v[2]);
8566 // add the vertex if it is not found in the merged set, and
8567 // get its index (triangle element) for the surface
8568 vertexhashindex = (unsigned int)(thisvertex->v[0] * 3571 + thisvertex->v[0] * 1777 + thisvertex->v[0] * 457) % (unsigned int)vertexhashsize;
8569 for (i = vertexhashtable[vertexhashindex];i >= 0;i = vertexhashdata[i].nextindex)
8571 vdata = vertexhashdata + i;
8572 if (vdata->submodelindex == thisvertex->submodelindex && vdata->textureindex == thisvertex->textureindex && VectorCompare(thisvertex->v, vdata->v) && VectorCompare(thisvertex->vn, vdata->vn) && Vector2Compare(thisvertex->vt, vdata->vt))
8577 i = vertexhashcount++;
8578 vdata = vertexhashdata + i;
8579 *vdata = *thisvertex;
8580 vdata->nextindex = vertexhashtable[vertexhashindex];
8581 vertexhashtable[vertexhashindex] = i;
8584 loadmodel->surfmesh.data_element3i[elementindex++] = i;
8587 surfacetriangles = surfaceelements / 3;
8588 tempsurface->num_vertices = surfacevertices;
8589 tempsurface->num_triangles = surfacetriangles;
8590 tempsurface->num_firstvertex = firstvertex;
8591 tempsurface->num_firsttriangle = firsttriangle;
8592 firstvertex += tempsurface->num_vertices;
8593 firsttriangle += tempsurface->num_triangles;
8595 loadmodel->num_surfaces++;
8598 submodelfirstsurface[submodelindex] = loadmodel->num_surfaces;
8599 numvertices = firstvertex;
8600 loadmodel->data_surfaces = (msurface_t *)Mem_Realloc(loadmodel->mempool, tempsurfaces, loadmodel->num_surfaces * sizeof(msurface_t));
8601 tempsurfaces = NULL;
8603 // allocate storage for final mesh data
8604 loadmodel->num_textures = numtextures * loadmodel->numskins;
8605 loadmodel->num_texturesperskin = numtextures;
8606 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 *));
8607 loadmodel->brush.submodels = (model_t **)data;data += loadmodel->brush.numsubmodels * sizeof(model_t *);
8608 loadmodel->modelsurfaces_sorted = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
8609 loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
8610 loadmodel->surfmesh.num_vertices = numvertices;
8611 loadmodel->surfmesh.num_triangles = numtriangles;
8612 loadmodel->surfmesh.data_vertex3f = (float *)data;data += numvertices * sizeof(float[3]);
8613 loadmodel->surfmesh.data_svector3f = (float *)data;data += numvertices * sizeof(float[3]);
8614 loadmodel->surfmesh.data_tvector3f = (float *)data;data += numvertices * sizeof(float[3]);
8615 loadmodel->surfmesh.data_normal3f = (float *)data;data += numvertices * sizeof(float[3]);
8616 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += numvertices * sizeof(float[2]);
8618 if (loadmodel->surfmesh.num_vertices <= 65536) {
8619 loadmodel->surfmesh.data_element3s = (unsigned short *)data;data += loadmodel->surfmesh.num_triangles * sizeof(unsigned short[3]);
8622 for (j = 0;j < loadmodel->surfmesh.num_vertices;j++)
8624 VectorCopy(vertexhashdata[j].v, loadmodel->surfmesh.data_vertex3f + 3*j);
8625 VectorCopy(vertexhashdata[j].vn, loadmodel->surfmesh.data_normal3f + 3*j);
8626 Vector2Copy(vertexhashdata[j].vt, loadmodel->surfmesh.data_texcoordtexture2f + 2*j);
8629 // load the textures
8630 for (textureindex = 0;textureindex < numtextures;textureindex++)
8631 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + textureindex, skinfiles, texturenames + textureindex*MAX_QPATH, texturenames + textureindex*MAX_QPATH);
8632 Mod_FreeSkinFiles(skinfiles);
8634 // set the surface textures to their real values now that we loaded them...
8635 for (i = 0;i < loadmodel->num_surfaces;i++)
8636 loadmodel->data_surfaces[i].texture = loadmodel->data_textures + (size_t)loadmodel->data_surfaces[i].texture;
8640 Mem_Free(texturenames);
8644 Mem_Free(vertexhashtable);
8645 Mem_Free(vertexhashdata);
8647 // compute all the mesh information that was not loaded from the file
8648 if (loadmodel->surfmesh.data_element3s)
8649 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
8650 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
8651 Mod_ValidateElements(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_element3s, loadmodel->surfmesh.num_triangles, 0, loadmodel->surfmesh.num_vertices, __FILE__, __LINE__);
8652 // generate normals if the file did not have them
8653 if (!VectorLength2(loadmodel->surfmesh.data_normal3f))
8654 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);
8655 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);
8657 // if this is a worldmodel and has no BSP tree, create a fake one for the purpose
8658 loadmodel->brush.num_visleafs = 1;
8659 loadmodel->brush.num_leafs = 1;
8660 loadmodel->brush.num_nodes = 0;
8661 loadmodel->brush.num_leafsurfaces = loadmodel->num_surfaces;
8662 loadmodel->brush.data_leafs = (mleaf_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafs * sizeof(mleaf_t));
8663 loadmodel->brush.data_nodes = (mnode_t *)loadmodel->brush.data_leafs;
8664 loadmodel->brush.num_pvsclusters = 1;
8665 loadmodel->brush.num_pvsclusterbytes = 1;
8666 loadmodel->brush.data_pvsclusters = nobsp_pvs;
8667 //if (loadmodel->num_nodes) loadmodel->data_nodes = (mnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_nodes * sizeof(mnode_t));
8668 //loadmodel->data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->num_leafsurfaces * sizeof(int));
8669 loadmodel->brush.data_leafsurfaces = loadmodel->modelsurfaces_sorted;
8670 VectorCopy(loadmodel->normalmins, loadmodel->brush.data_leafs->mins);
8671 VectorCopy(loadmodel->normalmaxs, loadmodel->brush.data_leafs->maxs);
8672 loadmodel->brush.data_leafs->combinedsupercontents = 0; // FIXME?
8673 loadmodel->brush.data_leafs->clusterindex = 0;
8674 loadmodel->brush.data_leafs->areaindex = 0;
8675 loadmodel->brush.data_leafs->numleafsurfaces = loadmodel->brush.num_leafsurfaces;
8676 loadmodel->brush.data_leafs->firstleafsurface = loadmodel->brush.data_leafsurfaces;
8677 loadmodel->brush.data_leafs->numleafbrushes = 0;
8678 loadmodel->brush.data_leafs->firstleafbrush = NULL;
8679 loadmodel->brush.supportwateralpha = true;
8681 if (loadmodel->brush.numsubmodels)
8682 loadmodel->brush.submodels = (model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(model_t *));
8685 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
8690 // duplicate the basic information
8691 dpsnprintf(name, sizeof(name), "*%i", i);
8692 mod = Mod_FindName(name, loadmodel->name);
8693 // copy the base model to this one
8695 // rename the clone back to its proper name
8696 strlcpy(mod->name, name, sizeof(mod->name));
8697 mod->brush.parentmodel = loadmodel;
8698 // textures and memory belong to the main model
8699 mod->texturepool = NULL;
8700 mod->mempool = NULL;
8701 mod->brush.GetPVS = NULL;
8702 mod->brush.FatPVS = NULL;
8703 mod->brush.BoxTouchingPVS = NULL;
8704 mod->brush.BoxTouchingLeafPVS = NULL;
8705 mod->brush.BoxTouchingVisibleLeafs = NULL;
8706 mod->brush.FindBoxClusters = NULL;
8707 mod->brush.LightPoint = NULL;
8708 mod->brush.AmbientSoundLevelsForPoint = NULL;
8710 mod->brush.submodel = i;
8711 if (loadmodel->brush.submodels)
8712 loadmodel->brush.submodels[i] = mod;
8714 // make the model surface list (used by shadowing/lighting)
8715 mod->submodelsurfaces_start = submodelfirstsurface[i];
8716 mod->submodelsurfaces_end = submodelfirstsurface[i+1];
8717 mod->firstmodelbrush = 0;
8718 mod->nummodelbrushes = 0;
8720 VectorClear(mod->normalmins);
8721 VectorClear(mod->normalmaxs);
8723 for (j = mod->submodelsurfaces_start;j < mod->submodelsurfaces_end;j++)
8725 const msurface_t *surface = mod->data_surfaces + j;
8726 const float *v3f = mod->surfmesh.data_vertex3f + 3 * surface->num_firstvertex;
8728 if (!surface->num_vertices)
8733 VectorCopy(v3f, mod->normalmins);
8734 VectorCopy(v3f, mod->normalmaxs);
8736 for (k = 0;k < surface->num_vertices;k++, v3f += 3)
8738 mod->normalmins[0] = min(mod->normalmins[0], v3f[0]);
8739 mod->normalmins[1] = min(mod->normalmins[1], v3f[1]);
8740 mod->normalmins[2] = min(mod->normalmins[2], v3f[2]);
8741 mod->normalmaxs[0] = max(mod->normalmaxs[0], v3f[0]);
8742 mod->normalmaxs[1] = max(mod->normalmaxs[1], v3f[1]);
8743 mod->normalmaxs[2] = max(mod->normalmaxs[2], v3f[2]);
8746 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
8747 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
8748 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
8749 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
8750 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
8751 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
8752 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
8753 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
8754 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
8755 mod->yawmins[2] = mod->normalmins[2];
8756 mod->yawmaxs[2] = mod->normalmaxs[2];
8757 mod->radius = modelradius;
8758 mod->radius2 = modelradius * modelradius;
8760 Mod_SetDrawSkyAndWater(mod);
8762 Mod_MakeCollisionBIH(mod, true, &mod->collision_bih);
8763 mod->render_bih = mod->collision_bih;
8765 // generate VBOs and other shared data before cloning submodels
8770 Mem_Free(submodelfirstsurface);
8772 // make the model surface list (used by shadowing/lighting)
8773 Mod_MakeSortedSurfaces(loadmodel);
8775 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);