2 Copyright (C) 1996-1997 Id Software, Inc.
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 See the GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
29 //cvar_t r_subdivide_size = {CVAR_SAVE, "r_subdivide_size", "128", "how large water polygons should be (smaller values produce more polygons which give better warping effects)"};
30 cvar_t mod_bsp_portalize = {0, "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 = {0, "r_novis", "0", "draws whole level, see also sv_cullentities_pvs 0"};
32 cvar_t r_nosurftextures = {0, "r_nosurftextures", "0", "pretends there was no texture lump found in the q1bsp/hlbsp loading (useful for debugging this rare case)"};
33 cvar_t r_subdivisions_tolerance = {0, "r_subdivisions_tolerance", "4", "maximum error tolerance on curve subdivision for rendering purposes (in other words, the curves will be given as many polygons as necessary to represent curves at this quality)"};
34 cvar_t r_subdivisions_mintess = {0, "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 = {0, "r_subdivisions_maxtess", "1024", "maximum number of subdivisions (prevents curves beyond a certain detail level, limits smoothing)"};
36 cvar_t r_subdivisions_maxvertices = {0, "r_subdivisions_maxvertices", "65536", "maximum vertices allowed per subdivided curve"};
37 cvar_t r_subdivisions_collision_tolerance = {0, "r_subdivisions_collision_tolerance", "15", "maximum error tolerance on curve subdivision for collision purposes (usually a larger error tolerance than for rendering)"};
38 cvar_t r_subdivisions_collision_mintess = {0, "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 = {0, "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 = {0, "r_subdivisions_collision_maxvertices", "4225", "maximum vertices allowed per subdivided curve"};
41 cvar_t r_trippy = {0, "r_trippy", "0", "easter egg"};
42 cvar_t r_fxaa = {CVAR_SAVE, "r_fxaa", "0", "fast approximate anti aliasing"};
43 cvar_t mod_noshader_default_offsetmapping = {CVAR_SAVE, "mod_noshader_default_offsetmapping", "1", "use offsetmapping by default on all surfaces that are not using q3 shader files"};
44 cvar_t mod_obj_orientation = {0, "mod_obj_orientation", "1", "fix orientation of OBJ models to the usual conventions (if zero, use coordinates as is)"};
45 cvar_t mod_q3bsp_curves_collisions = {0, "mod_q3bsp_curves_collisions", "1", "enables collisions with curves (SLOW)"};
46 cvar_t mod_q3bsp_curves_collisions_stride = {0, "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)"};
47 cvar_t mod_q3bsp_curves_stride = {0, "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)"};
48 cvar_t mod_q3bsp_optimizedtraceline = {0, "mod_q3bsp_optimizedtraceline", "1", "whether to use optimized traceline code for line traces (as opposed to tracebox code)"};
49 cvar_t mod_q3bsp_debugtracebrush = {0, "mod_q3bsp_debugtracebrush", "0", "selects different tracebrush bsp recursion algorithms (for debugging purposes only)"};
50 cvar_t mod_q3bsp_lightmapmergepower = {CVAR_SAVE, "mod_q3bsp_lightmapmergepower", "4", "merges the quake3 128x128 lightmap textures into larger lightmap group textures to speed up rendering, 1 = 256x256, 2 = 512x512, 3 = 1024x1024, 4 = 2048x2048, 5 = 4096x4096, ..."};
51 cvar_t mod_q3bsp_nolightmaps = {CVAR_SAVE, "mod_q3bsp_nolightmaps", "0", "do not load lightmaps in Q3BSP maps (to save video RAM, but be warned: it looks ugly)"};
52 cvar_t mod_q3bsp_tracelineofsight_brushes = {0, "mod_q3bsp_tracelineofsight_brushes", "0", "enables culling of entities behind detail brushes, curves, etc"};
53 cvar_t mod_q3bsp_sRGBlightmaps = {0, "mod_q3bsp_sRGBlightmaps", "0", "treat lightmaps from Q3 maps as sRGB when vid_sRGB is active"};
54 cvar_t mod_q3shader_default_offsetmapping = {CVAR_SAVE, "mod_q3shader_default_offsetmapping", "1", "use offsetmapping by default on all surfaces that are using q3 shader files"};
55 cvar_t mod_q3shader_default_offsetmapping_scale = {CVAR_SAVE, "mod_q3shader_default_offsetmapping_scale", "1", "default scale used for offsetmapping"};
56 cvar_t mod_q3shader_default_offsetmapping_bias = {CVAR_SAVE, "mod_q3shader_default_offsetmapping_bias", "0", "default bias used for offsetmapping"};
57 cvar_t mod_q3shader_default_polygonfactor = {0, "mod_q3shader_default_polygonfactor", "0", "biases depth values of 'polygonoffset' shaders to prevent z-fighting artifacts"};
58 cvar_t mod_q3shader_default_polygonoffset = {0, "mod_q3shader_default_polygonoffset", "-2", "biases depth values of 'polygonoffset' shaders to prevent z-fighting artifacts"};
59 cvar_t mod_q3shader_force_addalpha = {0, "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"};
60 cvar_t mod_q3shader_force_terrain_alphaflag = {0, "mod_q3shader_force_terrain_alphaflag", "0", "for multilayered terrain shaders force TEXF_ALPHA flag on both layers"};
62 cvar_t mod_q1bsp_polygoncollisions = {0, "mod_q1bsp_polygoncollisions", "0", "disables use of precomputed cliphulls and instead collides with polygons (uses Bounding Interval Hierarchy optimizations)"};
63 cvar_t mod_collision_bih = {0, "mod_collision_bih", "1", "enables use of generated Bounding Interval Hierarchy tree instead of compiled bsp tree in collision code"};
64 cvar_t mod_recalculatenodeboxes = {0, "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"};
66 static texture_t mod_q1bsp_texture_solid;
67 static texture_t mod_q1bsp_texture_sky;
68 static texture_t mod_q1bsp_texture_lava;
69 static texture_t mod_q1bsp_texture_slime;
70 static texture_t mod_q1bsp_texture_water;
72 static qboolean Mod_Q3BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end);
74 void Mod_BrushInit(void)
76 // Cvar_RegisterVariable(&r_subdivide_size);
77 Cvar_RegisterVariable(&mod_bsp_portalize);
78 Cvar_RegisterVariable(&r_novis);
79 Cvar_RegisterVariable(&r_nosurftextures);
80 Cvar_RegisterVariable(&r_subdivisions_tolerance);
81 Cvar_RegisterVariable(&r_subdivisions_mintess);
82 Cvar_RegisterVariable(&r_subdivisions_maxtess);
83 Cvar_RegisterVariable(&r_subdivisions_maxvertices);
84 Cvar_RegisterVariable(&r_subdivisions_collision_tolerance);
85 Cvar_RegisterVariable(&r_subdivisions_collision_mintess);
86 Cvar_RegisterVariable(&r_subdivisions_collision_maxtess);
87 Cvar_RegisterVariable(&r_subdivisions_collision_maxvertices);
88 Cvar_RegisterVariable(&r_trippy);
89 Cvar_RegisterVariable(&r_fxaa);
90 Cvar_RegisterVariable(&mod_noshader_default_offsetmapping);
91 Cvar_RegisterVariable(&mod_obj_orientation);
92 Cvar_RegisterVariable(&mod_q3bsp_curves_collisions);
93 Cvar_RegisterVariable(&mod_q3bsp_curves_collisions_stride);
94 Cvar_RegisterVariable(&mod_q3bsp_curves_stride);
95 Cvar_RegisterVariable(&mod_q3bsp_optimizedtraceline);
96 Cvar_RegisterVariable(&mod_q3bsp_debugtracebrush);
97 Cvar_RegisterVariable(&mod_q3bsp_lightmapmergepower);
98 Cvar_RegisterVariable(&mod_q3bsp_nolightmaps);
99 Cvar_RegisterVariable(&mod_q3bsp_sRGBlightmaps);
100 Cvar_RegisterVariable(&mod_q3bsp_tracelineofsight_brushes);
101 Cvar_RegisterVariable(&mod_q3shader_default_offsetmapping);
102 Cvar_RegisterVariable(&mod_q3shader_default_offsetmapping_scale);
103 Cvar_RegisterVariable(&mod_q3shader_default_offsetmapping_bias);
104 Cvar_RegisterVariable(&mod_q3shader_default_polygonfactor);
105 Cvar_RegisterVariable(&mod_q3shader_default_polygonoffset);
106 Cvar_RegisterVariable(&mod_q3shader_force_addalpha);
107 Cvar_RegisterVariable(&mod_q3shader_force_terrain_alphaflag);
108 Cvar_RegisterVariable(&mod_q1bsp_polygoncollisions);
109 Cvar_RegisterVariable(&mod_collision_bih);
110 Cvar_RegisterVariable(&mod_recalculatenodeboxes);
112 // these games were made for older DP engines and are no longer
113 // maintained; use this hack to show their textures properly
114 if(gamemode == GAME_NEXUIZ)
115 Cvar_SetQuick(&mod_q3shader_force_addalpha, "1");
117 memset(&mod_q1bsp_texture_solid, 0, sizeof(mod_q1bsp_texture_solid));
118 strlcpy(mod_q1bsp_texture_solid.name, "solid" , sizeof(mod_q1bsp_texture_solid.name));
119 mod_q1bsp_texture_solid.surfaceflags = 0;
120 mod_q1bsp_texture_solid.supercontents = SUPERCONTENTS_SOLID;
122 mod_q1bsp_texture_sky = mod_q1bsp_texture_solid;
123 strlcpy(mod_q1bsp_texture_sky.name, "sky", sizeof(mod_q1bsp_texture_sky.name));
124 mod_q1bsp_texture_sky.surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
125 mod_q1bsp_texture_sky.supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP;
127 mod_q1bsp_texture_lava = mod_q1bsp_texture_solid;
128 strlcpy(mod_q1bsp_texture_lava.name, "*lava", sizeof(mod_q1bsp_texture_lava.name));
129 mod_q1bsp_texture_lava.surfaceflags = Q3SURFACEFLAG_NOMARKS;
130 mod_q1bsp_texture_lava.supercontents = SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
132 mod_q1bsp_texture_slime = mod_q1bsp_texture_solid;
133 strlcpy(mod_q1bsp_texture_slime.name, "*slime", sizeof(mod_q1bsp_texture_slime.name));
134 mod_q1bsp_texture_slime.surfaceflags = Q3SURFACEFLAG_NOMARKS;
135 mod_q1bsp_texture_slime.supercontents = SUPERCONTENTS_SLIME;
137 mod_q1bsp_texture_water = mod_q1bsp_texture_solid;
138 strlcpy(mod_q1bsp_texture_water.name, "*water", sizeof(mod_q1bsp_texture_water.name));
139 mod_q1bsp_texture_water.surfaceflags = Q3SURFACEFLAG_NOMARKS;
140 mod_q1bsp_texture_water.supercontents = SUPERCONTENTS_WATER;
143 static mleaf_t *Mod_Q1BSP_PointInLeaf(dp_model_t *model, const vec3_t p)
150 // LordHavoc: modified to start at first clip node,
151 // in other words: first node of the (sub)model
152 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
154 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
156 return (mleaf_t *)node;
159 static void Mod_Q1BSP_AmbientSoundLevelsForPoint(dp_model_t *model, const vec3_t p, unsigned char *out, int outsize)
163 leaf = Mod_Q1BSP_PointInLeaf(model, p);
166 i = min(outsize, (int)sizeof(leaf->ambient_sound_level));
169 memcpy(out, leaf->ambient_sound_level, i);
175 memset(out, 0, outsize);
178 static int Mod_Q1BSP_FindBoxClusters(dp_model_t *model, const vec3_t mins, const vec3_t maxs, int maxclusters, int *clusterlist)
181 int nodestackindex = 0;
182 mnode_t *node, *nodestack[1024];
183 if (!model->brush.num_pvsclusters)
185 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
191 // node - recurse down the BSP tree
192 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
196 return -1; // ERROR: NAN bounding box!
197 // box is on one side of plane, take that path
198 node = node->children[sides-1];
202 // box crosses plane, take one path and remember the other
203 if (nodestackindex < 1024)
204 nodestack[nodestackindex++] = node->children[0];
205 node = node->children[1];
211 // leaf - add clusterindex to list
212 if (numclusters < maxclusters)
213 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
217 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
221 if (nodestackindex < 1024)
222 nodestack[nodestackindex++] = node->children[0];
223 node = node->children[1];
228 // leaf - add clusterindex to list
229 if (numclusters < maxclusters)
230 clusterlist[numclusters] = ((mleaf_t *)node)->clusterindex;
235 // try another path we didn't take earlier
236 if (nodestackindex == 0)
238 node = nodestack[--nodestackindex];
240 // return number of clusters found (even if more than the maxclusters)
244 static int Mod_Q1BSP_BoxTouchingPVS(dp_model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
246 int nodestackindex = 0;
247 mnode_t *node, *nodestack[1024];
248 if (!model->brush.num_pvsclusters)
250 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
256 // node - recurse down the BSP tree
257 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
261 return -1; // ERROR: NAN bounding box!
262 // box is on one side of plane, take that path
263 node = node->children[sides-1];
267 // box crosses plane, take one path and remember the other
268 if (nodestackindex < 1024)
269 nodestack[nodestackindex++] = node->children[0];
270 node = node->children[1];
276 // leaf - check cluster bit
277 int clusterindex = ((mleaf_t *)node)->clusterindex;
278 if (CHECKPVSBIT(pvs, clusterindex))
280 // it is visible, return immediately with the news
285 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
289 if (nodestackindex < 1024)
290 nodestack[nodestackindex++] = node->children[0];
291 node = node->children[1];
296 // leaf - check cluster bit
297 int clusterindex = ((mleaf_t *)node)->clusterindex;
298 if (CHECKPVSBIT(pvs, clusterindex))
300 // it is visible, return immediately with the news
306 // nothing to see here, try another path we didn't take earlier
307 if (nodestackindex == 0)
309 node = nodestack[--nodestackindex];
315 static int Mod_Q1BSP_BoxTouchingLeafPVS(dp_model_t *model, const unsigned char *pvs, const vec3_t mins, const vec3_t maxs)
317 int nodestackindex = 0;
318 mnode_t *node, *nodestack[1024];
319 if (!model->brush.num_leafs)
321 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
327 // node - recurse down the BSP tree
328 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
332 return -1; // ERROR: NAN bounding box!
333 // box is on one side of plane, take that path
334 node = node->children[sides-1];
338 // box crosses plane, take one path and remember the other
339 if (nodestackindex < 1024)
340 nodestack[nodestackindex++] = node->children[0];
341 node = node->children[1];
347 // leaf - check cluster bit
348 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
349 if (CHECKPVSBIT(pvs, clusterindex))
351 // it is visible, return immediately with the news
356 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
360 if (nodestackindex < 1024)
361 nodestack[nodestackindex++] = node->children[0];
362 node = node->children[1];
367 // leaf - check cluster bit
368 int clusterindex = ((mleaf_t *)node) - model->brush.data_leafs;
369 if (CHECKPVSBIT(pvs, clusterindex))
371 // it is visible, return immediately with the news
377 // nothing to see here, try another path we didn't take earlier
378 if (nodestackindex == 0)
380 node = nodestack[--nodestackindex];
386 static int Mod_Q1BSP_BoxTouchingVisibleLeafs(dp_model_t *model, const unsigned char *visibleleafs, const vec3_t mins, const vec3_t maxs)
388 int nodestackindex = 0;
389 mnode_t *node, *nodestack[1024];
390 if (!model->brush.num_leafs)
392 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
398 // node - recurse down the BSP tree
399 int sides = BoxOnPlaneSide(mins, maxs, node->plane);
403 return -1; // ERROR: NAN bounding box!
404 // box is on one side of plane, take that path
405 node = node->children[sides-1];
409 // box crosses plane, take one path and remember the other
410 if (nodestackindex < 1024)
411 nodestack[nodestackindex++] = node->children[0];
412 node = node->children[1];
418 // leaf - check if it is visible
419 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
421 // it is visible, return immediately with the news
426 if (BoxesOverlap(mins, maxs, node->mins, node->maxs))
430 if (nodestackindex < 1024)
431 nodestack[nodestackindex++] = node->children[0];
432 node = node->children[1];
437 // leaf - check if it is visible
438 if (visibleleafs[(mleaf_t *)node - model->brush.data_leafs])
440 // it is visible, return immediately with the news
446 // nothing to see here, try another path we didn't take earlier
447 if (nodestackindex == 0)
449 node = nodestack[--nodestackindex];
455 typedef struct findnonsolidlocationinfo_s
458 vec3_t absmin, absmax;
464 findnonsolidlocationinfo_t;
466 static void Mod_Q1BSP_FindNonSolidLocation_r_Triangle(findnonsolidlocationinfo_t *info, msurface_t *surface, int k)
469 float dist, f, vert[3][3], edge[3][3], facenormal[3], edgenormal[3][3], point[3];
471 tri = (info->model->surfmesh.data_element3i + 3 * surface->num_firsttriangle) + k * 3;
472 VectorCopy((info->model->surfmesh.data_vertex3f + tri[0] * 3), vert[0]);
473 VectorCopy((info->model->surfmesh.data_vertex3f + tri[1] * 3), vert[1]);
474 VectorCopy((info->model->surfmesh.data_vertex3f + tri[2] * 3), vert[2]);
475 VectorSubtract(vert[1], vert[0], edge[0]);
476 VectorSubtract(vert[2], vert[1], edge[1]);
477 CrossProduct(edge[1], edge[0], facenormal);
478 if (facenormal[0] || facenormal[1] || facenormal[2])
480 VectorNormalize(facenormal);
481 f = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
482 if (f <= info->bestdist && f >= -info->bestdist)
484 VectorSubtract(vert[0], vert[2], edge[2]);
485 VectorNormalize(edge[0]);
486 VectorNormalize(edge[1]);
487 VectorNormalize(edge[2]);
488 CrossProduct(facenormal, edge[0], edgenormal[0]);
489 CrossProduct(facenormal, edge[1], edgenormal[1]);
490 CrossProduct(facenormal, edge[2], edgenormal[2]);
492 if (DotProduct(info->center, edgenormal[0]) < DotProduct(vert[0], edgenormal[0])
493 && DotProduct(info->center, edgenormal[1]) < DotProduct(vert[1], edgenormal[1])
494 && DotProduct(info->center, edgenormal[2]) < DotProduct(vert[2], edgenormal[2]))
496 // we got lucky, the center is within the face
497 dist = DotProduct(info->center, facenormal) - DotProduct(vert[0], facenormal);
501 if (info->bestdist > dist)
503 info->bestdist = dist;
504 VectorScale(facenormal, (info->radius - -dist), info->nudge);
509 if (info->bestdist > dist)
511 info->bestdist = dist;
512 VectorScale(facenormal, (info->radius - dist), info->nudge);
518 // check which edge or vertex the center is nearest
519 for (i = 0;i < 3;i++)
521 f = DotProduct(info->center, edge[i]);
522 if (f >= DotProduct(vert[0], edge[i])
523 && f <= DotProduct(vert[1], edge[i]))
526 VectorMA(info->center, -f, edge[i], point);
527 dist = sqrt(DotProduct(point, point));
528 if (info->bestdist > dist)
530 info->bestdist = dist;
531 VectorScale(point, (info->radius / dist), info->nudge);
533 // skip both vertex checks
534 // (both are further away than this edge)
539 // not on edge, check first vertex of edge
540 VectorSubtract(info->center, vert[i], point);
541 dist = sqrt(DotProduct(point, point));
542 if (info->bestdist > dist)
544 info->bestdist = dist;
545 VectorScale(point, (info->radius / dist), info->nudge);
554 static void Mod_Q1BSP_FindNonSolidLocation_r_Leaf(findnonsolidlocationinfo_t *info, mleaf_t *leaf)
556 int surfacenum, k, *mark;
558 for (surfacenum = 0, mark = leaf->firstleafsurface;surfacenum < leaf->numleafsurfaces;surfacenum++, mark++)
560 surface = info->model->data_surfaces + *mark;
561 if (surface->texture->supercontents & SUPERCONTENTS_SOLID)
563 if(surface->deprecatedq3num_bboxstride > 0)
566 cnt = (surface->num_triangles + surface->deprecatedq3num_bboxstride - 1) / surface->deprecatedq3num_bboxstride;
567 for(i = 0; i < cnt; ++i)
569 if(BoxesOverlap(surface->deprecatedq3data_bbox6f + i * 6, surface->deprecatedq3data_bbox6f + i * 6 + 3, info->absmin, info->absmax))
571 for(k = 0; k < surface->deprecatedq3num_bboxstride; ++k)
573 tri = i * surface->deprecatedq3num_bboxstride + k;
574 if(tri >= surface->num_triangles)
576 Mod_Q1BSP_FindNonSolidLocation_r_Triangle(info, surface, tri);
583 for (k = 0;k < surface->num_triangles;k++)
585 Mod_Q1BSP_FindNonSolidLocation_r_Triangle(info, surface, k);
592 static void Mod_Q1BSP_FindNonSolidLocation_r(findnonsolidlocationinfo_t *info, mnode_t *node)
596 float f = PlaneDiff(info->center, node->plane);
597 if (f >= -info->bestdist)
598 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[0]);
599 if (f <= info->bestdist)
600 Mod_Q1BSP_FindNonSolidLocation_r(info, node->children[1]);
604 if (((mleaf_t *)node)->numleafsurfaces)
605 Mod_Q1BSP_FindNonSolidLocation_r_Leaf(info, (mleaf_t *)node);
609 static void Mod_Q1BSP_FindNonSolidLocation(dp_model_t *model, const vec3_t in, vec3_t out, float radius)
612 findnonsolidlocationinfo_t info;
618 VectorCopy(in, info.center);
619 info.radius = radius;
624 VectorClear(info.nudge);
625 info.bestdist = radius;
626 VectorCopy(info.center, info.absmin);
627 VectorCopy(info.center, info.absmax);
628 info.absmin[0] -= info.radius + 1;
629 info.absmin[1] -= info.radius + 1;
630 info.absmin[2] -= info.radius + 1;
631 info.absmax[0] += info.radius + 1;
632 info.absmax[1] += info.radius + 1;
633 info.absmax[2] += info.radius + 1;
634 Mod_Q1BSP_FindNonSolidLocation_r(&info, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
635 VectorAdd(info.center, info.nudge, info.center);
637 while (info.bestdist < radius && ++i < 10);
638 VectorCopy(info.center, out);
641 int Mod_Q1BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativecontents)
643 switch(nativecontents)
648 return SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
650 return SUPERCONTENTS_WATER;
652 return SUPERCONTENTS_SLIME;
654 return SUPERCONTENTS_LAVA | SUPERCONTENTS_NODROP;
656 return SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP | SUPERCONTENTS_OPAQUE; // to match behaviour of Q3 maps, let sky count as opaque
661 int Mod_Q1BSP_NativeContentsFromSuperContents(dp_model_t *model, int supercontents)
663 if (supercontents & (SUPERCONTENTS_SOLID | SUPERCONTENTS_BODY))
664 return CONTENTS_SOLID;
665 if (supercontents & SUPERCONTENTS_SKY)
667 if (supercontents & SUPERCONTENTS_LAVA)
668 return CONTENTS_LAVA;
669 if (supercontents & SUPERCONTENTS_SLIME)
670 return CONTENTS_SLIME;
671 if (supercontents & SUPERCONTENTS_WATER)
672 return CONTENTS_WATER;
673 return CONTENTS_EMPTY;
676 typedef struct RecursiveHullCheckTraceInfo_s
678 // the hull we're tracing through
681 // the trace structure to fill in
684 // start, end, and end - start (in model space)
689 RecursiveHullCheckTraceInfo_t;
691 // 1/32 epsilon to keep floating point happy
692 #define DIST_EPSILON (0.03125)
694 #define HULLCHECKSTATE_EMPTY 0
695 #define HULLCHECKSTATE_SOLID 1
696 #define HULLCHECKSTATE_DONE 2
698 static int Mod_Q1BSP_RecursiveHullCheck(RecursiveHullCheckTraceInfo_t *t, int num, double p1f, double p2f, double p1[3], double p2[3])
700 // status variables, these don't need to be saved on the stack when
701 // recursing... but are because this should be thread-safe
702 // (note: tracing against a bbox is not thread-safe, yet)
707 // variables that need to be stored on the stack when recursing
712 // keep looping until we hit a leaf
715 // find the point distances
716 node = t->hull->clipnodes + num;
717 plane = t->hull->planes + node->planenum;
719 // axial planes can be calculated more quickly without the DotProduct
722 t1 = p1[plane->type] - plane->dist;
723 t2 = p2[plane->type] - plane->dist;
727 t1 = DotProduct (plane->normal, p1) - plane->dist;
728 t2 = DotProduct (plane->normal, p2) - plane->dist;
731 // negative plane distances indicate children[1] (behind plane)
735 // if the line starts and ends on the same side of the plane, recurse
736 // into that child instantly
737 if (p1side == p2side)
739 #if COLLISIONPARANOID >= 3
745 // loop back and process the start child
746 num = node->children[p1side];
750 // find the midpoint where the line crosses the plane, use the
751 // original line for best accuracy
752 #if COLLISIONPARANOID >= 3
757 t1 = t->start[plane->type] - plane->dist;
758 t2 = t->end[plane->type] - plane->dist;
762 t1 = DotProduct (plane->normal, t->start) - plane->dist;
763 t2 = DotProduct (plane->normal, t->end) - plane->dist;
765 midf = t1 / (t1 - t2);
766 midf = bound(p1f, midf, p2f);
767 VectorMA(t->start, midf, t->dist, mid);
769 // we now have a mid point, essentially splitting the line into
770 // the segments in the near child and the far child, we can now
771 // recurse those in order and get their results
773 // recurse both sides, front side first
774 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[p1side], p1f, midf, p1, mid);
775 // if this side is not empty, return what it is (solid or done)
776 if (ret != HULLCHECKSTATE_EMPTY)
779 ret = Mod_Q1BSP_RecursiveHullCheck(t, node->children[p2side], midf, p2f, mid, p2);
780 // if other side is not solid, return what it is (empty or done)
781 if (ret != HULLCHECKSTATE_SOLID)
784 // front is air and back is solid, this is the impact point...
786 // copy the plane information, flipping it if needed
789 t->trace->plane.dist = -plane->dist;
790 VectorNegate (plane->normal, t->trace->plane.normal);
794 t->trace->plane.dist = plane->dist;
795 VectorCopy (plane->normal, t->trace->plane.normal);
798 // calculate the return fraction which is nudged off the surface a bit
799 t1 = DotProduct(t->trace->plane.normal, t->start) - t->trace->plane.dist;
800 t2 = DotProduct(t->trace->plane.normal, t->end) - t->trace->plane.dist;
801 midf = (t1 - collision_impactnudge.value) / (t1 - t2);
802 t->trace->fraction = bound(0, midf, 1);
804 #if COLLISIONPARANOID >= 3
807 return HULLCHECKSTATE_DONE;
811 // we reached a leaf contents
814 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
815 if (!t->trace->startfound)
817 t->trace->startfound = true;
818 t->trace->startsupercontents |= num;
820 if (num & SUPERCONTENTS_LIQUIDSMASK)
821 t->trace->inwater = true;
823 t->trace->inopen = true;
824 if (num & SUPERCONTENTS_SOLID)
825 t->trace->hittexture = &mod_q1bsp_texture_solid;
826 else if (num & SUPERCONTENTS_SKY)
827 t->trace->hittexture = &mod_q1bsp_texture_sky;
828 else if (num & SUPERCONTENTS_LAVA)
829 t->trace->hittexture = &mod_q1bsp_texture_lava;
830 else if (num & SUPERCONTENTS_SLIME)
831 t->trace->hittexture = &mod_q1bsp_texture_slime;
833 t->trace->hittexture = &mod_q1bsp_texture_water;
834 t->trace->hitq3surfaceflags = t->trace->hittexture->surfaceflags;
835 t->trace->hitsupercontents = num;
836 if (num & t->trace->hitsupercontentsmask)
838 // if the first leaf is solid, set startsolid
839 if (t->trace->allsolid)
840 t->trace->startsolid = true;
841 #if COLLISIONPARANOID >= 3
844 return HULLCHECKSTATE_SOLID;
848 t->trace->allsolid = false;
849 #if COLLISIONPARANOID >= 3
852 return HULLCHECKSTATE_EMPTY;
856 //#if COLLISIONPARANOID < 2
857 static int Mod_Q1BSP_RecursiveHullCheckPoint(RecursiveHullCheckTraceInfo_t *t, int num)
860 mclipnode_t *nodes = t->hull->clipnodes;
861 mplane_t *planes = t->hull->planes;
863 VectorCopy(t->start, point);
866 plane = planes + nodes[num].planenum;
867 num = nodes[num].children[(plane->type < 3 ? point[plane->type] : DotProduct(plane->normal, point)) < plane->dist];
869 num = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
870 t->trace->startsupercontents |= num;
871 if (num & SUPERCONTENTS_LIQUIDSMASK)
872 t->trace->inwater = true;
874 t->trace->inopen = true;
875 if (num & t->trace->hitsupercontentsmask)
877 t->trace->allsolid = t->trace->startsolid = true;
878 return HULLCHECKSTATE_SOLID;
882 t->trace->allsolid = t->trace->startsolid = false;
883 return HULLCHECKSTATE_EMPTY;
888 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)
890 RecursiveHullCheckTraceInfo_t rhc;
892 memset(&rhc, 0, sizeof(rhc));
893 memset(trace, 0, sizeof(trace_t));
895 rhc.trace->fraction = 1;
896 rhc.trace->allsolid = true;
897 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
898 VectorCopy(start, rhc.start);
899 VectorCopy(start, rhc.end);
900 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
903 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);
905 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)
907 RecursiveHullCheckTraceInfo_t rhc;
909 if (VectorCompare(start, end))
911 Mod_Q1BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask);
915 // 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...
916 if (sv_gameplayfix_q1bsptracelinereportstexture.integer)
918 Mod_Q1BSP_TraceLineAgainstSurfaces(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask);
922 memset(&rhc, 0, sizeof(rhc));
923 memset(trace, 0, sizeof(trace_t));
925 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
926 rhc.trace->fraction = 1;
927 rhc.trace->allsolid = true;
928 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
929 VectorCopy(start, rhc.start);
930 VectorCopy(end, rhc.end);
931 VectorSubtract(rhc.end, rhc.start, rhc.dist);
932 #if COLLISIONPARANOID >= 2
933 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]);
934 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
939 VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
940 memset(&testtrace, 0, sizeof(trace_t));
941 rhc.trace = &testtrace;
942 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
943 rhc.trace->fraction = 1;
944 rhc.trace->allsolid = true;
945 VectorCopy(test, rhc.start);
946 VectorCopy(test, rhc.end);
947 VectorClear(rhc.dist);
948 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
949 //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
950 if (!trace->startsolid && testtrace.startsolid)
951 Con_Printf(" - ended in solid!\n");
955 if (VectorLength2(rhc.dist))
956 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
958 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
962 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)
964 // this function currently only supports same size start and end
966 RecursiveHullCheckTraceInfo_t rhc;
968 if (VectorCompare(boxmins, boxmaxs))
970 if (VectorCompare(start, end))
971 Mod_Q1BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask);
973 Mod_Q1BSP_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask);
977 memset(&rhc, 0, sizeof(rhc));
978 memset(trace, 0, sizeof(trace_t));
980 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
981 rhc.trace->fraction = 1;
982 rhc.trace->allsolid = true;
983 VectorSubtract(boxmaxs, boxmins, boxsize);
985 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
986 else if (model->brush.ishlbsp)
988 // LordHavoc: this has to have a minor tolerance (the .1) because of
989 // minor float precision errors from the box being transformed around
990 if (boxsize[0] < 32.1)
992 if (boxsize[2] < 54) // pick the nearest of 36 or 72
993 rhc.hull = &model->brushq1.hulls[3]; // 32x32x36
995 rhc.hull = &model->brushq1.hulls[1]; // 32x32x72
998 rhc.hull = &model->brushq1.hulls[2]; // 64x64x64
1002 // LordHavoc: this has to have a minor tolerance (the .1) because of
1003 // minor float precision errors from the box being transformed around
1004 if (boxsize[0] < 32.1)
1005 rhc.hull = &model->brushq1.hulls[1]; // 32x32x56
1007 rhc.hull = &model->brushq1.hulls[2]; // 64x64x88
1009 VectorMAMAM(1, start, 1, boxmins, -1, rhc.hull->clip_mins, rhc.start);
1010 VectorMAMAM(1, end, 1, boxmins, -1, rhc.hull->clip_mins, rhc.end);
1011 VectorSubtract(rhc.end, rhc.start, rhc.dist);
1012 #if COLLISIONPARANOID >= 2
1013 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]);
1014 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
1019 VectorLerp(rhc.start, rhc.trace->fraction, rhc.end, test);
1020 memset(&testtrace, 0, sizeof(trace_t));
1021 rhc.trace = &testtrace;
1022 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
1023 rhc.trace->fraction = 1;
1024 rhc.trace->allsolid = true;
1025 VectorCopy(test, rhc.start);
1026 VectorCopy(test, rhc.end);
1027 VectorClear(rhc.dist);
1028 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
1029 //Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, test, test);
1030 if (!trace->startsolid && testtrace.startsolid)
1031 Con_Printf(" - ended in solid!\n");
1035 if (VectorLength2(rhc.dist))
1036 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
1038 Mod_Q1BSP_RecursiveHullCheckPoint(&rhc, rhc.hull->firstclipnode);
1042 static int Mod_Q1BSP_PointSuperContents(struct model_s *model, int frame, const vec3_t point)
1044 int num = model->brushq1.hulls[0].firstclipnode;
1046 mclipnode_t *nodes = model->brushq1.hulls[0].clipnodes;
1047 mplane_t *planes = model->brushq1.hulls[0].planes;
1050 plane = planes + nodes[num].planenum;
1051 num = nodes[num].children[(plane->type < 3 ? point[plane->type] : DotProduct(plane->normal, point)) < plane->dist];
1053 return Mod_Q1BSP_SuperContentsFromNativeContents(NULL, num);
1056 void Collision_ClipTrace_Box(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, const vec3_t mins, const vec3_t maxs, const vec3_t end, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, const texture_t *boxtexture)
1060 colplanef_t cbox_planes[6];
1062 cbox.hasaabbplanes = true;
1063 cbox.supercontents = boxsupercontents;
1066 cbox.numtriangles = 0;
1067 cbox.planes = cbox_planes;
1069 cbox.elements = NULL;
1077 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];
1078 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];
1079 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];
1080 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];
1081 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];
1082 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];
1083 cbox_planes[0].q3surfaceflags = boxq3surfaceflags;cbox_planes[0].texture = boxtexture;
1084 cbox_planes[1].q3surfaceflags = boxq3surfaceflags;cbox_planes[1].texture = boxtexture;
1085 cbox_planes[2].q3surfaceflags = boxq3surfaceflags;cbox_planes[2].texture = boxtexture;
1086 cbox_planes[3].q3surfaceflags = boxq3surfaceflags;cbox_planes[3].texture = boxtexture;
1087 cbox_planes[4].q3surfaceflags = boxq3surfaceflags;cbox_planes[4].texture = boxtexture;
1088 cbox_planes[5].q3surfaceflags = boxq3surfaceflags;cbox_planes[5].texture = boxtexture;
1089 memset(trace, 0, sizeof(trace_t));
1090 trace->hitsupercontentsmask = hitsupercontentsmask;
1091 trace->fraction = 1;
1092 Collision_TraceLineBrushFloat(trace, start, end, &cbox, &cbox);
1094 RecursiveHullCheckTraceInfo_t rhc;
1095 static hull_t box_hull;
1096 static mclipnode_t box_clipnodes[6];
1097 static mplane_t box_planes[6];
1098 // fill in a default trace
1099 memset(&rhc, 0, sizeof(rhc));
1100 memset(trace, 0, sizeof(trace_t));
1101 //To keep everything totally uniform, bounding boxes are turned into small
1102 //BSP trees instead of being compared directly.
1103 // create a temp hull from bounding box sizes
1104 box_planes[0].dist = cmaxs[0] - mins[0];
1105 box_planes[1].dist = cmins[0] - maxs[0];
1106 box_planes[2].dist = cmaxs[1] - mins[1];
1107 box_planes[3].dist = cmins[1] - maxs[1];
1108 box_planes[4].dist = cmaxs[2] - mins[2];
1109 box_planes[5].dist = cmins[2] - maxs[2];
1110 #if COLLISIONPARANOID >= 3
1111 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]);
1114 if (box_hull.clipnodes == NULL)
1118 //Set up the planes and clipnodes so that the six floats of a bounding box
1119 //can just be stored out and get a proper hull_t structure.
1121 box_hull.clipnodes = box_clipnodes;
1122 box_hull.planes = box_planes;
1123 box_hull.firstclipnode = 0;
1124 box_hull.lastclipnode = 5;
1126 for (i = 0;i < 6;i++)
1128 box_clipnodes[i].planenum = i;
1132 box_clipnodes[i].children[side] = CONTENTS_EMPTY;
1134 box_clipnodes[i].children[side^1] = i + 1;
1136 box_clipnodes[i].children[side^1] = CONTENTS_SOLID;
1138 box_planes[i].type = i>>1;
1139 box_planes[i].normal[i>>1] = 1;
1143 // trace a line through the generated clipping hull
1144 //rhc.boxsupercontents = boxsupercontents;
1145 rhc.hull = &box_hull;
1147 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
1148 rhc.trace->fraction = 1;
1149 rhc.trace->allsolid = true;
1150 VectorCopy(start, rhc.start);
1151 VectorCopy(end, rhc.end);
1152 VectorSubtract(rhc.end, rhc.start, rhc.dist);
1153 Mod_Q1BSP_RecursiveHullCheck(&rhc, rhc.hull->firstclipnode, 0, 1, rhc.start, rhc.end);
1154 //VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
1155 if (rhc.trace->startsupercontents)
1156 rhc.trace->startsupercontents = boxsupercontents;
1160 void Collision_ClipTrace_Point(trace_t *trace, const vec3_t cmins, const vec3_t cmaxs, const vec3_t start, int hitsupercontentsmask, int boxsupercontents, int boxq3surfaceflags, const texture_t *boxtexture)
1162 memset(trace, 0, sizeof(trace_t));
1163 trace->fraction = 1;
1164 if (BoxesOverlap(start, start, cmins, cmaxs))
1166 trace->startsupercontents |= boxsupercontents;
1167 if (hitsupercontentsmask & boxsupercontents)
1169 trace->startsolid = true;
1170 trace->allsolid = true;
1175 static qboolean Mod_Q1BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end)
1178 Mod_Q1BSP_TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK);
1179 return trace.fraction == 1;
1182 static int Mod_Q1BSP_LightPoint_RecursiveBSPNode(dp_model_t *model, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal, const mnode_t *node, float x, float y, float startz, float endz)
1186 float mid, distz = endz - startz;
1190 switch (node->plane->type)
1193 node = node->children[x < node->plane->dist];
1194 continue; // loop back and process the new node
1196 node = node->children[y < node->plane->dist];
1197 continue; // loop back and process the new node
1199 side = startz < node->plane->dist;
1200 if ((endz < node->plane->dist) == side)
1202 node = node->children[side];
1203 continue; // loop back and process the new node
1205 // found an intersection
1206 mid = node->plane->dist;
1209 back = front = x * node->plane->normal[0] + y * node->plane->normal[1];
1210 front += startz * node->plane->normal[2];
1211 back += endz * node->plane->normal[2];
1212 side = front < node->plane->dist;
1213 if ((back < node->plane->dist) == side)
1215 node = node->children[side];
1216 continue; // loop back and process the new node
1218 // found an intersection
1219 mid = startz + distz * (front - node->plane->dist) / (front - back);
1223 // go down front side
1224 if (node->children[side]->plane && Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, node->children[side], x, y, startz, mid))
1225 return true; // hit something
1227 // check for impact on this node
1228 if (node->numsurfaces)
1231 int dsi, dti, lmwidth, lmheight;
1233 msurface_t *surface;
1234 unsigned char *lightmap;
1235 int maps, line3, size3;
1238 float scale, w, w00, w01, w10, w11;
1240 surface = model->data_surfaces + node->firstsurface;
1241 for (i = 0;i < node->numsurfaces;i++, surface++)
1243 if (!(surface->texture->basematerialflags & MATERIALFLAG_WALL) || !surface->lightmapinfo || !surface->lightmapinfo->samples)
1244 continue; // no lightmaps
1246 // location we want to sample in the lightmap
1247 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;
1248 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;
1251 // thanks to jitspoe for pointing out that this int cast was
1252 // rounding toward zero, so we floor it
1253 dsi = (int)floor(ds);
1254 dti = (int)floor(dt);
1255 lmwidth = ((surface->lightmapinfo->extents[0]>>4)+1);
1256 lmheight = ((surface->lightmapinfo->extents[1]>>4)+1);
1259 // we have to tolerate a position of lmwidth-1 for some rare
1260 // cases - in which case the sampling position still gets
1261 // clamped but the color gets interpolated to that edge.
1262 if (dsi >= 0 && dsi < lmwidth && dti >= 0 && dti < lmheight)
1264 // in the rare cases where we're sampling slightly off
1265 // the polygon, clamp the sampling position (we can still
1266 // interpolate outside it, where it becomes extrapolation)
1271 if (dsi > lmwidth-2)
1273 if (dti > lmheight-2)
1276 // calculate bilinear interpolation factors
1277 // and also multiply by fixedpoint conversion factors to
1278 // compensate for lightmaps being 0-255 (as 0-2), we use
1279 // r_refdef.scene.rtlightstylevalue here which is already
1280 // 0.000-2.148 range
1281 // (if we used r_refdef.scene.lightstylevalue this
1282 // divisor would be 32768 rather than 128)
1285 w00 = (1 - dsfrac) * (1 - dtfrac) * (1.0f / 128.0f);
1286 w01 = ( dsfrac) * (1 - dtfrac) * (1.0f / 128.0f);
1287 w10 = (1 - dsfrac) * ( dtfrac) * (1.0f / 128.0f);
1288 w11 = ( dsfrac) * ( dtfrac) * (1.0f / 128.0f);
1290 // values for pointer math
1291 line3 = lmwidth * 3; // LordHavoc: *3 for colored lighting
1292 size3 = lmwidth * lmheight * 3; // LordHavoc: *3 for colored lighting
1294 // look up the pixel
1295 lightmap = surface->lightmapinfo->samples + dti * line3 + dsi*3; // LordHavoc: *3 for colored lighting
1297 // bilinear filter each lightmap style, and sum them
1298 for (maps = 0;maps < MAXLIGHTMAPS && surface->lightmapinfo->styles[maps] != 255;maps++)
1300 scale = r_refdef.scene.rtlightstylevalue[surface->lightmapinfo->styles[maps]];
1301 w = w00 * scale;VectorMA(ambientcolor, w, lightmap , ambientcolor);
1302 w = w01 * scale;VectorMA(ambientcolor, w, lightmap + 3 , ambientcolor);
1303 w = w10 * scale;VectorMA(ambientcolor, w, lightmap + line3 , ambientcolor);
1304 w = w11 * scale;VectorMA(ambientcolor, w, lightmap + line3 + 3, ambientcolor);
1308 return true; // success
1313 // go down back side
1314 node = node->children[side ^ 1];
1316 distz = endz - startz;
1317 // loop back and process the new node
1320 // did not hit anything
1324 static void Mod_Q1BSP_LightPoint(dp_model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
1326 // pretend lighting is coming down from above (due to lack of a lightgrid to know primary lighting direction)
1327 VectorSet(diffusenormal, 0, 0, 1);
1329 if (!model->brushq1.lightdata)
1331 VectorSet(ambientcolor, 1, 1, 1);
1332 VectorSet(diffusecolor, 0, 0, 0);
1336 Mod_Q1BSP_LightPoint_RecursiveBSPNode(model, ambientcolor, diffusecolor, diffusenormal, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode, p[0], p[1], p[2] + 0.125, p[2] - 65536);
1339 static const texture_t *Mod_Q1BSP_TraceLineAgainstSurfacesFindTextureOnNode(RecursiveHullCheckTraceInfo_t *t, const dp_model_t *model, const mnode_t *node, double mid[3])
1344 const msurface_t *surface;
1349 float edgenormal[3];
1356 surface = model->data_surfaces + node->firstsurface;
1357 for (i = 0;i < node->numsurfaces;i++, surface++)
1359 // skip surfaces whose bounding box does not include the point
1360 // if (!BoxesOverlap(mid, mid, surface->mins, surface->maxs))
1362 // skip faces with contents we don't care about
1363 if (!(t->trace->hitsupercontentsmask & surface->texture->supercontents))
1365 // get the surface normal - since it is flat we know any vertex normal will suffice
1366 VectorCopy(model->surfmesh.data_normal3f + 3 * surface->num_firstvertex, normal);
1368 if (DotProduct(t->dist, normal) > 0)
1370 // iterate edges and see if the point is outside one of them
1371 for (j = 0, k = surface->num_vertices - 1;j < surface->num_vertices;k = j, j++)
1373 VectorCopy(model->surfmesh.data_vertex3f + 3 * (surface->num_firstvertex + k), v0);
1374 VectorCopy(model->surfmesh.data_vertex3f + 3 * (surface->num_firstvertex + j), v1);
1375 VectorSubtract(v0, v1, edgedir);
1376 CrossProduct(edgedir, normal, edgenormal);
1377 if (DotProduct(edgenormal, p) > DotProduct(edgenormal, v0))
1380 // if the point is outside one of the edges, it is not within the surface
1381 if (j < surface->num_vertices)
1384 // we hit a surface, this is the impact point...
1385 VectorCopy(normal, t->trace->plane.normal);
1386 t->trace->plane.dist = DotProduct(normal, p);
1388 // calculate the return fraction which is nudged off the surface a bit
1389 t1 = DotProduct(t->start, t->trace->plane.normal) - t->trace->plane.dist;
1390 t2 = DotProduct(t->end, t->trace->plane.normal) - t->trace->plane.dist;
1391 midf = (t1 - collision_impactnudge.value) / (t1 - t2);
1392 t->trace->fraction = bound(0, midf, 1);
1394 t->trace->hittexture = surface->texture->currentframe;
1395 t->trace->hitq3surfaceflags = t->trace->hittexture->surfaceflags;
1396 t->trace->hitsupercontents = t->trace->hittexture->supercontents;
1397 return surface->texture->currentframe;
1402 static int Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(RecursiveHullCheckTraceInfo_t *t, const dp_model_t *model, const mnode_t *node, const double p1[3], const double p2[3])
1404 const mplane_t *plane;
1407 double midf, mid[3];
1408 const mleaf_t *leaf;
1412 plane = node->plane;
1413 if (plane->type < 3)
1415 t1 = p1[plane->type] - plane->dist;
1416 t2 = p2[plane->type] - plane->dist;
1420 t1 = DotProduct (plane->normal, p1) - plane->dist;
1421 t2 = DotProduct (plane->normal, p2) - plane->dist;
1427 node = node->children[1];
1436 node = node->children[0];
1442 // the line intersects, find intersection point
1443 // LordHavoc: this uses the original trace for maximum accuracy
1444 if (plane->type < 3)
1446 t1 = t->start[plane->type] - plane->dist;
1447 t2 = t->end[plane->type] - plane->dist;
1451 t1 = DotProduct (plane->normal, t->start) - plane->dist;
1452 t2 = DotProduct (plane->normal, t->end) - plane->dist;
1455 midf = t1 / (t1 - t2);
1456 VectorMA(t->start, midf, t->dist, mid);
1458 // recurse both sides, front side first, return if we hit a surface
1459 if (Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(t, model, node->children[side], p1, mid) == HULLCHECKSTATE_DONE)
1460 return HULLCHECKSTATE_DONE;
1462 // test each surface on the node
1463 Mod_Q1BSP_TraceLineAgainstSurfacesFindTextureOnNode(t, model, node, mid);
1464 if (t->trace->hittexture)
1465 return HULLCHECKSTATE_DONE;
1467 // recurse back side
1468 return Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(t, model, node->children[side ^ 1], mid, p2);
1470 leaf = (const mleaf_t *)node;
1471 side = Mod_Q1BSP_SuperContentsFromNativeContents(NULL, leaf->contents);
1472 if (!t->trace->startfound)
1474 t->trace->startfound = true;
1475 t->trace->startsupercontents |= side;
1477 if (side & SUPERCONTENTS_LIQUIDSMASK)
1478 t->trace->inwater = true;
1480 t->trace->inopen = true;
1481 if (side & t->trace->hitsupercontentsmask)
1483 // if the first leaf is solid, set startsolid
1484 if (t->trace->allsolid)
1485 t->trace->startsolid = true;
1486 return HULLCHECKSTATE_SOLID;
1490 t->trace->allsolid = false;
1491 return HULLCHECKSTATE_EMPTY;
1495 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)
1497 RecursiveHullCheckTraceInfo_t rhc;
1499 memset(&rhc, 0, sizeof(rhc));
1500 memset(trace, 0, sizeof(trace_t));
1502 rhc.trace->hitsupercontentsmask = hitsupercontentsmask;
1503 rhc.trace->fraction = 1;
1504 rhc.trace->allsolid = true;
1505 rhc.hull = &model->brushq1.hulls[0]; // 0x0x0
1506 VectorCopy(start, rhc.start);
1507 VectorCopy(end, rhc.end);
1508 VectorSubtract(rhc.end, rhc.start, rhc.dist);
1509 Mod_Q1BSP_TraceLineAgainstSurfacesRecursiveBSPNode(&rhc, model, model->brush.data_nodes + rhc.hull->firstclipnode, rhc.start, rhc.end);
1510 VectorMA(rhc.start, rhc.trace->fraction, rhc.dist, rhc.trace->endpos);
1513 static void Mod_Q1BSP_DecompressVis(const unsigned char *in, const unsigned char *inend, unsigned char *out, unsigned char *outend)
1516 unsigned char *outstart = out;
1517 while (out < outend)
1521 Con_Printf("Mod_Q1BSP_DecompressVis: input underrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
1531 Con_Printf("Mod_Q1BSP_DecompressVis: input underrun (during zero-run) on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
1534 for (c = *in++;c > 0;c--)
1538 Con_Printf("Mod_Q1BSP_DecompressVis: output overrun on model \"%s\" (decompressed %i of %i output bytes)\n", loadmodel->name, (int)(out - outstart), (int)(outend - outstart));
1549 R_Q1BSP_LoadSplitSky
1551 A sky texture is 256*128, with the right side being a masked overlay
1554 static void R_Q1BSP_LoadSplitSky (unsigned char *src, int width, int height, int bytesperpixel)
1559 unsigned int *solidpixels = (unsigned int *)Mem_Alloc(tempmempool, w*h*sizeof(unsigned char[4]));
1560 unsigned int *alphapixels = (unsigned int *)Mem_Alloc(tempmempool, w*h*sizeof(unsigned char[4]));
1562 // allocate a texture pool if we need it
1563 if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
1564 loadmodel->texturepool = R_AllocTexturePool();
1566 if (bytesperpixel == 4)
1568 for (y = 0;y < h;y++)
1570 for (x = 0;x < w;x++)
1572 solidpixels[y*w+x] = ((unsigned *)src)[y*width+x+w];
1573 alphapixels[y*w+x] = ((unsigned *)src)[y*width+x];
1579 // make an average value for the back to avoid
1580 // a fringe on the top level
1589 for (y = 0;y < h;y++)
1591 for (x = 0;x < w;x++)
1593 p = src[x*width+y+w];
1594 r += palette_rgb[p][0];
1595 g += palette_rgb[p][1];
1596 b += palette_rgb[p][2];
1599 bgra.b[2] = r/(w*h);
1600 bgra.b[1] = g/(w*h);
1601 bgra.b[0] = b/(w*h);
1603 for (y = 0;y < h;y++)
1605 for (x = 0;x < w;x++)
1607 solidpixels[y*w+x] = palette_bgra_complete[src[y*width+x+w]];
1609 alphapixels[y*w+x] = p ? palette_bgra_complete[p] : bgra.i;
1614 loadmodel->brush.solidskyskinframe = R_SkinFrame_LoadInternalBGRA("sky_solidtexture", 0 , (unsigned char *) solidpixels, w, h, vid.sRGB3D);
1615 loadmodel->brush.alphaskyskinframe = R_SkinFrame_LoadInternalBGRA("sky_alphatexture", TEXF_ALPHA, (unsigned char *) alphapixels, w, h, vid.sRGB3D);
1616 Mem_Free(solidpixels);
1617 Mem_Free(alphapixels);
1620 static void Mod_Q1BSP_LoadTextures(sizebuf_t *sb)
1622 int i, j, k, num, max, altmax, mtwidth, mtheight, doffset, incomplete, nummiptex = 0;
1623 skinframe_t *skinframe;
1624 texture_t *tx, *tx2, *anims[10], *altanims[10];
1625 texture_t backuptex;
1626 unsigned char *data, *mtdata;
1628 char mapname[MAX_QPATH], name[MAX_QPATH];
1629 unsigned char zeroopaque[4], zerotrans[4];
1632 Vector4Set(zeroopaque, 0, 0, 0, 255);
1633 Vector4Set(zerotrans, 0, 0, 0, 128);
1635 loadmodel->data_textures = NULL;
1637 // add two slots for notexture walls and notexture liquids
1640 nummiptex = MSG_ReadLittleLong(sb);
1641 loadmodel->num_textures = nummiptex + 2;
1642 loadmodel->num_texturesperskin = loadmodel->num_textures;
1646 loadmodel->num_textures = 2;
1647 loadmodel->num_texturesperskin = loadmodel->num_textures;
1650 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_textures * sizeof(texture_t));
1652 // fill out all slots with notexture
1653 if (cls.state != ca_dedicated)
1654 skinframe = R_SkinFrame_LoadMissing();
1657 for (i = 0, tx = loadmodel->data_textures;i < loadmodel->num_textures;i++, tx++)
1659 strlcpy(tx->name, "NO TEXTURE FOUND", sizeof(tx->name));
1662 tx->basealpha = 1.0f;
1663 if (cls.state != ca_dedicated)
1665 tx->numskinframes = 1;
1666 tx->skinframerate = 1;
1667 tx->skinframes[0] = skinframe;
1668 tx->currentskinframe = tx->skinframes[0];
1670 tx->basematerialflags = MATERIALFLAG_WALL;
1671 if (i == loadmodel->num_textures - 1)
1673 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1674 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1675 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1679 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1680 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1682 tx->currentframe = tx;
1684 // clear water settings
1687 tx->refractfactor = 1;
1688 Vector4Set(tx->refractcolor4f, 1, 1, 1, 1);
1689 tx->reflectfactor = 1;
1690 Vector4Set(tx->reflectcolor4f, 1, 1, 1, 1);
1691 tx->r_water_wateralpha = 1;
1692 tx->offsetmapping = OFFSETMAPPING_DEFAULT;
1693 tx->offsetscale = 1;
1695 tx->specularscalemod = 1;
1696 tx->specularpowermod = 1;
1697 tx->transparentsort = TRANSPARENTSORT_DISTANCE;
1698 // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
1699 // JUST GREP FOR "specularscalemod = 1".
1704 Con_Printf("%s: no miptex lump to load textures from\n", loadmodel->name);
1708 s = loadmodel->name;
1709 if (!strncasecmp(s, "maps/", 5))
1711 FS_StripExtension(s, mapname, sizeof(mapname));
1713 // just to work around bounds checking when debugging with it (array index out of bounds error thing)
1714 // LordHavoc: mostly rewritten map texture loader
1715 for (i = 0;i < nummiptex;i++)
1717 doffset = MSG_ReadLittleLong(sb);
1718 if (r_nosurftextures.integer)
1722 Con_DPrintf("%s: miptex #%i missing\n", loadmodel->name, i);
1726 MSG_InitReadBuffer(&miptexsb, sb->data + doffset, sb->cursize - doffset);
1728 // copy name, but only up to 16 characters
1729 // (the output buffer can hold more than this, but the input buffer is
1731 for (j = 0;j < 16;j++)
1732 name[j] = MSG_ReadByte(&miptexsb);
1734 // pretty up the buffer (replacing any trailing garbage with 0)
1735 for (j = (int)strlen(name);j < 16;j++)
1740 dpsnprintf(name, sizeof(name), "unnamed%i", i);
1741 Con_DPrintf("%s: warning: renaming unnamed texture to %s\n", loadmodel->name, name);
1744 mtwidth = MSG_ReadLittleLong(&miptexsb);
1745 mtheight = MSG_ReadLittleLong(&miptexsb);
1747 j = MSG_ReadLittleLong(&miptexsb);
1751 if (j < 40 || j + mtwidth * mtheight > miptexsb.cursize)
1753 Con_Printf("%s: Texture \"%s\" is corrupt or incomplete\n", loadmodel->name, name);
1756 mtdata = miptexsb.data + j;
1759 if ((mtwidth & 15) || (mtheight & 15))
1760 Con_DPrintf("%s: warning: texture \"%s\" is not 16 aligned\n", loadmodel->name, name);
1762 // LordHavoc: force all names to lowercase
1763 for (j = 0;name[j];j++)
1764 if (name[j] >= 'A' && name[j] <= 'Z')
1765 name[j] += 'a' - 'A';
1767 // LordHavoc: backup the texture_t because q3 shader loading overwrites it
1768 backuptex = loadmodel->data_textures[i];
1769 if (name[0] && Mod_LoadTextureFromQ3Shader(loadmodel->data_textures + i, name, false, false, 0))
1771 loadmodel->data_textures[i] = backuptex;
1773 tx = loadmodel->data_textures + i;
1774 strlcpy(tx->name, name, sizeof(tx->name));
1775 tx->width = mtwidth;
1776 tx->height = mtheight;
1777 tx->basealpha = 1.0f;
1779 if (tx->name[0] == '*')
1781 if (!strncmp(tx->name, "*lava", 5))
1783 tx->supercontents = mod_q1bsp_texture_lava.supercontents;
1784 tx->surfaceflags = mod_q1bsp_texture_lava.surfaceflags;
1786 else if (!strncmp(tx->name, "*slime", 6))
1788 tx->supercontents = mod_q1bsp_texture_slime.supercontents;
1789 tx->surfaceflags = mod_q1bsp_texture_slime.surfaceflags;
1793 tx->supercontents = mod_q1bsp_texture_water.supercontents;
1794 tx->surfaceflags = mod_q1bsp_texture_water.surfaceflags;
1797 else if (!strncmp(tx->name, "sky", 3))
1799 tx->supercontents = mod_q1bsp_texture_sky.supercontents;
1800 tx->surfaceflags = mod_q1bsp_texture_sky.surfaceflags;
1801 // for the surface traceline we need to hit this surface as a solid...
1802 tx->supercontents |= SUPERCONTENTS_SOLID;
1806 tx->supercontents = mod_q1bsp_texture_solid.supercontents;
1807 tx->surfaceflags = mod_q1bsp_texture_solid.surfaceflags;
1810 if (cls.state != ca_dedicated)
1812 // LordHavoc: HL sky textures are entirely different than quake
1813 if (!loadmodel->brush.ishlbsp && !strncmp(tx->name, "sky", 3) && mtwidth == mtheight * 2)
1815 data = loadimagepixelsbgra(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s/%s", mapname, tx->name), false, false, false, NULL);
1817 data = loadimagepixelsbgra(gamemode == GAME_TENEBRAE ? tx->name : va(vabuf, sizeof(vabuf), "textures/%s", tx->name), false, false, false, NULL);
1818 if (data && image_width == image_height * 2)
1820 R_Q1BSP_LoadSplitSky(data, image_width, image_height, 4);
1823 else if (mtdata != NULL)
1824 R_Q1BSP_LoadSplitSky(mtdata, mtwidth, mtheight, 1);
1828 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);
1830 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);
1832 tx->offsetmapping = OFFSETMAPPING_DEFAULT; // allow offsetmapping on external textures without a q3 shader
1835 // did not find external texture, load it from the bsp or wad3
1836 if (loadmodel->brush.ishlbsp)
1838 // internal texture overrides wad
1839 unsigned char *pixels, *freepixels;
1840 pixels = freepixels = NULL;
1842 pixels = W_ConvertWAD3TextureBGRA(&miptexsb);
1844 pixels = freepixels = W_GetTextureBGRA(tx->name);
1847 tx->width = image_width;
1848 tx->height = image_height;
1849 skinframe = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_ALPHA | TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP, pixels, image_width, image_height, true);
1852 Mem_Free(freepixels);
1854 else if (mtdata) // texture included
1855 skinframe = R_SkinFrame_LoadInternalQuake(tx->name, TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP, false, r_fullbrights.integer, mtdata, tx->width, tx->height);
1857 // if skinframe is still NULL the "missing" texture will be used
1859 tx->skinframes[0] = skinframe;
1861 // LordHavoc: some Tenebrae textures get replaced by black
1862 if (!strncmp(tx->name, "*glassmirror", 12)) // Tenebrae
1863 tx->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, TEXF_MIPMAP | TEXF_ALPHA, zerotrans, 1, 1, false);
1864 else if (!strncmp(tx->name, "mirror", 6)) // Tenebrae
1865 tx->skinframes[0] = R_SkinFrame_LoadInternalBGRA(tx->name, 0, zeroopaque, 1, 1, false);
1868 tx->basematerialflags = MATERIALFLAG_WALL;
1869 if (tx->name[0] == '*')
1871 // LordHavoc: some turbulent textures should not be affected by wateralpha
1872 if (!strncmp(tx->name, "*glassmirror", 12)) // Tenebrae
1873 tx->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_REFLECTION;
1874 else if (!strncmp(tx->name,"*lava",5)
1875 || !strncmp(tx->name,"*teleport",9)
1876 || !strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
1877 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW;
1879 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_LIGHTBOTHSIDES | MATERIALFLAG_NOSHADOW | MATERIALFLAG_WATERALPHA | MATERIALFLAG_WATERSHADER;
1880 if (tx->skinframes[0] && tx->skinframes[0]->hasalpha)
1881 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1883 else if (!strncmp(tx->name, "mirror", 6)) // Tenebrae
1885 // replace the texture with black
1886 tx->basematerialflags |= MATERIALFLAG_REFLECTION;
1888 else if (!strncmp(tx->name, "sky", 3))
1889 tx->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
1890 else if (!strcmp(tx->name, "caulk"))
1891 tx->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
1892 else if (tx->skinframes[0] && tx->skinframes[0]->hasalpha)
1893 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1895 // start out with no animation
1896 tx->currentframe = tx;
1897 tx->currentskinframe = tx->skinframes[0];
1898 tx->currentmaterialflags = tx->basematerialflags;
1901 // sequence the animations
1902 for (i = 0;i < nummiptex;i++)
1904 tx = loadmodel->data_textures + i;
1905 if (!tx || tx->name[0] != '+' || tx->name[1] == 0 || tx->name[2] == 0)
1907 if (tx->anim_total[0] || tx->anim_total[1])
1908 continue; // already sequenced
1910 // find the number of frames in the animation
1911 memset(anims, 0, sizeof(anims));
1912 memset(altanims, 0, sizeof(altanims));
1914 for (j = i;j < nummiptex;j++)
1916 tx2 = loadmodel->data_textures + j;
1917 if (!tx2 || tx2->name[0] != '+' || strcmp(tx2->name+2, tx->name+2))
1921 if (num >= '0' && num <= '9')
1922 anims[num - '0'] = tx2;
1923 else if (num >= 'a' && num <= 'j')
1924 altanims[num - 'a'] = tx2;
1926 Con_Printf("Bad animating texture %s\n", tx->name);
1930 for (j = 0;j < 10;j++)
1937 //Con_Printf("linking animation %s (%i:%i frames)\n\n", tx->name, max, altmax);
1940 for (j = 0;j < max;j++)
1944 Con_Printf("Missing frame %i of %s\n", j, tx->name);
1948 for (j = 0;j < altmax;j++)
1952 Con_Printf("Missing altframe %i of %s\n", j, tx->name);
1961 // if there is no alternate animation, duplicate the primary
1962 // animation into the alternate
1964 for (k = 0;k < 10;k++)
1965 altanims[k] = anims[k];
1968 // link together the primary animation
1969 for (j = 0;j < max;j++)
1972 tx2->animated = 1; // q1bsp
1973 tx2->anim_total[0] = max;
1974 tx2->anim_total[1] = altmax;
1975 for (k = 0;k < 10;k++)
1977 tx2->anim_frames[0][k] = anims[k];
1978 tx2->anim_frames[1][k] = altanims[k];
1982 // if there really is an alternate anim...
1983 if (anims[0] != altanims[0])
1985 // link together the alternate animation
1986 for (j = 0;j < altmax;j++)
1989 tx2->animated = 1; // q1bsp
1990 // the primary/alternate are reversed here
1991 tx2->anim_total[0] = altmax;
1992 tx2->anim_total[1] = max;
1993 for (k = 0;k < 10;k++)
1995 tx2->anim_frames[0][k] = altanims[k];
1996 tx2->anim_frames[1][k] = anims[k];
2003 static void Mod_Q1BSP_LoadLighting(sizebuf_t *sb)
2006 unsigned char *in, *out, *data, d;
2007 char litfilename[MAX_QPATH];
2008 char dlitfilename[MAX_QPATH];
2009 fs_offset_t filesize;
2010 if (loadmodel->brush.ishlbsp) // LordHavoc: load the colored lighting data straight
2012 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize);
2013 for (i = 0;i < sb->cursize;i++)
2014 loadmodel->brushq1.lightdata[i] = sb->data[i] >>= 1;
2016 else // LordHavoc: bsp version 29 (normal white lighting)
2018 // LordHavoc: hope is not lost yet, check for a .lit file to load
2019 strlcpy (litfilename, loadmodel->name, sizeof (litfilename));
2020 FS_StripExtension (litfilename, litfilename, sizeof (litfilename));
2021 strlcpy (dlitfilename, litfilename, sizeof (dlitfilename));
2022 strlcat (litfilename, ".lit", sizeof (litfilename));
2023 strlcat (dlitfilename, ".dlit", sizeof (dlitfilename));
2024 data = (unsigned char*) FS_LoadFile(litfilename, tempmempool, false, &filesize);
2027 if (filesize == (fs_offset_t)(8 + sb->cursize * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
2029 i = LittleLong(((int *)data)[1]);
2032 if (developer_loading.integer)
2033 Con_Printf("loaded %s\n", litfilename);
2034 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
2035 memcpy(loadmodel->brushq1.lightdata, data + 8, filesize - 8);
2037 data = (unsigned char*) FS_LoadFile(dlitfilename, tempmempool, false, &filesize);
2040 if (filesize == (fs_offset_t)(8 + sb->cursize * 3) && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
2042 i = LittleLong(((int *)data)[1]);
2045 if (developer_loading.integer)
2046 Con_Printf("loaded %s\n", dlitfilename);
2047 loadmodel->brushq1.nmaplightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, filesize - 8);
2048 memcpy(loadmodel->brushq1.nmaplightdata, data + 8, filesize - 8);
2049 loadmodel->brushq3.deluxemapping_modelspace = false;
2050 loadmodel->brushq3.deluxemapping = true;
2059 Con_Printf("Unknown .lit file version (%d)\n", i);
2061 else if (filesize == 8)
2062 Con_Print("Empty .lit file, ignoring\n");
2064 Con_Printf("Corrupt .lit file (file size %i bytes, should be %i bytes), ignoring\n", (int) filesize, (int) (8 + sb->cursize * 3));
2071 // LordHavoc: oh well, expand the white lighting data
2074 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize*3);
2076 out = loadmodel->brushq1.lightdata;
2077 for (i = 0;i < sb->cursize;i++)
2087 static void Mod_Q1BSP_LoadVisibility(sizebuf_t *sb)
2089 loadmodel->brushq1.num_compressedpvs = 0;
2090 loadmodel->brushq1.data_compressedpvs = NULL;
2093 loadmodel->brushq1.num_compressedpvs = sb->cursize;
2094 loadmodel->brushq1.data_compressedpvs = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize);
2095 MSG_ReadBytes(sb, sb->cursize, loadmodel->brushq1.data_compressedpvs);
2098 // used only for HalfLife maps
2099 static void Mod_Q1BSP_ParseWadsFromEntityLump(const char *data)
2101 char key[128], value[4096];
2105 if (!COM_ParseToken_Simple(&data, false, false, true))
2107 if (com_token[0] != '{')
2111 if (!COM_ParseToken_Simple(&data, false, false, true))
2113 if (com_token[0] == '}')
2114 break; // end of worldspawn
2115 if (com_token[0] == '_')
2116 strlcpy(key, com_token + 1, sizeof(key));
2118 strlcpy(key, com_token, sizeof(key));
2119 while (key[strlen(key)-1] == ' ') // remove trailing spaces
2120 key[strlen(key)-1] = 0;
2121 if (!COM_ParseToken_Simple(&data, false, false, true))
2123 dpsnprintf(value, sizeof(value), "%s", com_token);
2124 if (!strcmp("wad", key)) // for HalfLife maps
2126 if (loadmodel->brush.ishlbsp)
2129 for (i = 0;i < (int)sizeof(value);i++)
2130 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
2132 if (i < (int)sizeof(value) && value[i])
2134 for (;i < (int)sizeof(value);i++)
2136 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
2137 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
2139 else if (value[i] == ';' || value[i] == 0)
2143 W_LoadTextureWadFile(&value[j], false);
2155 static void Mod_Q1BSP_LoadEntities(sizebuf_t *sb)
2157 loadmodel->brush.entities = NULL;
2160 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, sb->cursize + 1);
2161 MSG_ReadBytes(sb, sb->cursize, (unsigned char *)loadmodel->brush.entities);
2162 loadmodel->brush.entities[sb->cursize] = 0;
2163 if (loadmodel->brush.ishlbsp)
2164 Mod_Q1BSP_ParseWadsFromEntityLump(loadmodel->brush.entities);
2168 static void Mod_Q1BSP_LoadVertexes(sizebuf_t *sb)
2172 int structsize = 12;
2174 if (sb->cursize % structsize)
2175 Host_Error("Mod_Q1BSP_LoadVertexes: funny lump size in %s",loadmodel->name);
2176 count = sb->cursize / structsize;
2177 out = (mvertex_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2179 loadmodel->brushq1.vertexes = out;
2180 loadmodel->brushq1.numvertexes = count;
2182 for ( i=0 ; i<count ; i++, out++)
2184 out->position[0] = MSG_ReadLittleFloat(sb);
2185 out->position[1] = MSG_ReadLittleFloat(sb);
2186 out->position[2] = MSG_ReadLittleFloat(sb);
2190 static void Mod_Q1BSP_LoadSubmodels(sizebuf_t *sb, hullinfo_t *hullinfo)
2194 int structsize = (48+4*hullinfo->filehulls);
2196 if (sb->cursize % structsize)
2197 Host_Error ("Mod_Q1BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
2199 count = sb->cursize / structsize;
2200 out = (mmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
2202 loadmodel->brushq1.submodels = out;
2203 loadmodel->brush.numsubmodels = count;
2205 for (i = 0; i < count; i++, out++)
2207 // spread out the mins / maxs by a pixel
2208 out->mins[0] = MSG_ReadLittleFloat(sb) - 1;
2209 out->mins[1] = MSG_ReadLittleFloat(sb) - 1;
2210 out->mins[2] = MSG_ReadLittleFloat(sb) - 1;
2211 out->maxs[0] = MSG_ReadLittleFloat(sb) + 1;
2212 out->maxs[1] = MSG_ReadLittleFloat(sb) + 1;
2213 out->maxs[2] = MSG_ReadLittleFloat(sb) + 1;
2214 out->origin[0] = MSG_ReadLittleFloat(sb);
2215 out->origin[1] = MSG_ReadLittleFloat(sb);
2216 out->origin[2] = MSG_ReadLittleFloat(sb);
2217 for (j = 0; j < hullinfo->filehulls; j++)
2218 out->headnode[j] = MSG_ReadLittleLong(sb);
2219 out->visleafs = MSG_ReadLittleLong(sb);
2220 out->firstface = MSG_ReadLittleLong(sb);
2221 out->numfaces = MSG_ReadLittleLong(sb);
2225 static void Mod_Q1BSP_LoadEdges(sizebuf_t *sb)
2229 int structsize = loadmodel->brush.isbsp2 ? 8 : 4;
2231 if (sb->cursize % structsize)
2232 Host_Error("Mod_Q1BSP_LoadEdges: funny lump size in %s",loadmodel->name);
2233 count = sb->cursize / structsize;
2234 out = (medge_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
2236 loadmodel->brushq1.edges = out;
2237 loadmodel->brushq1.numedges = count;
2239 for ( i=0 ; i<count ; i++, out++)
2241 if (loadmodel->brush.isbsp2)
2243 out->v[0] = (unsigned int)MSG_ReadLittleLong(sb);
2244 out->v[1] = (unsigned int)MSG_ReadLittleLong(sb);
2248 out->v[0] = (unsigned short)MSG_ReadLittleShort(sb);
2249 out->v[1] = (unsigned short)MSG_ReadLittleShort(sb);
2251 if ((int)out->v[0] >= loadmodel->brushq1.numvertexes || (int)out->v[1] >= loadmodel->brushq1.numvertexes)
2253 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);
2254 if(!loadmodel->brushq1.numvertexes)
2255 Host_Error("Mod_Q1BSP_LoadEdges: %s has edges but no vertexes, cannot fix\n", loadmodel->name);
2263 static void Mod_Q1BSP_LoadTexinfo(sizebuf_t *sb)
2266 int i, j, k, count, miptex;
2267 int structsize = 40;
2269 if (sb->cursize % structsize)
2270 Host_Error("Mod_Q1BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
2271 count = sb->cursize / structsize;
2272 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
2274 loadmodel->brushq1.texinfo = out;
2275 loadmodel->brushq1.numtexinfo = count;
2277 for (i = 0;i < count;i++, out++)
2279 for (k = 0;k < 2;k++)
2280 for (j = 0;j < 4;j++)
2281 out->vecs[k][j] = MSG_ReadLittleFloat(sb);
2283 miptex = MSG_ReadLittleLong(sb);
2284 out->q1flags = MSG_ReadLittleLong(sb);
2286 if (out->q1flags & TEX_SPECIAL)
2288 // if texture chosen is NULL or the shader needs a lightmap,
2289 // force to notexture water shader
2290 out->textureindex = loadmodel->num_textures - 1;
2294 // if texture chosen is NULL, force to notexture
2295 out->textureindex = loadmodel->num_textures - 2;
2297 // see if the specified miptex is valid and try to use it instead
2298 if (loadmodel->data_textures)
2300 if ((unsigned int) miptex >= (unsigned int) loadmodel->num_textures)
2301 Con_Printf("error in model \"%s\": invalid miptex index %i(of %i)\n", loadmodel->name, miptex, loadmodel->num_textures);
2303 out->textureindex = miptex;
2309 void BoundPoly(int numverts, float *verts, vec3_t mins, vec3_t maxs)
2314 mins[0] = mins[1] = mins[2] = 9999;
2315 maxs[0] = maxs[1] = maxs[2] = -9999;
2317 for (i = 0;i < numverts;i++)
2319 for (j = 0;j < 3;j++, v++)
2329 #define MAX_SUBDIVPOLYTRIANGLES 4096
2330 #define MAX_SUBDIVPOLYVERTS(MAX_SUBDIVPOLYTRIANGLES * 3)
2332 static int subdivpolyverts, subdivpolytriangles;
2333 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
2334 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
2336 static int subdivpolylookupvert(vec3_t v)
2339 for (i = 0;i < subdivpolyverts;i++)
2340 if (subdivpolyvert[i][0] == v[0]
2341 && subdivpolyvert[i][1] == v[1]
2342 && subdivpolyvert[i][2] == v[2])
2344 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
2345 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
2346 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
2347 return subdivpolyverts++;
2350 static void SubdividePolygon(int numverts, float *verts)
2352 int i, i1, i2, i3, f, b, c, p;
2353 vec3_t mins, maxs, front[256], back[256];
2354 float m, *pv, *cv, dist[256], frac;
2357 Host_Error("SubdividePolygon: ran out of verts in buffer");
2359 BoundPoly(numverts, verts, mins, maxs);
2361 for (i = 0;i < 3;i++)
2363 m = (mins[i] + maxs[i]) * 0.5;
2364 m = r_subdivide_size.value * floor(m/r_subdivide_size.value + 0.5);
2365 if (maxs[i] - m < 8)
2367 if (m - mins[i] < 8)
2371 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
2372 dist[c] = cv[i] - m;
2375 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
2379 VectorCopy(pv, front[f]);
2384 VectorCopy(pv, back[b]);
2387 if (dist[p] == 0 || dist[c] == 0)
2389 if ((dist[p] > 0) != (dist[c] > 0) )
2392 frac = dist[p] / (dist[p] - dist[c]);
2393 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
2394 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
2395 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
2401 SubdividePolygon(f, front[0]);
2402 SubdividePolygon(b, back[0]);
2406 i1 = subdivpolylookupvert(verts);
2407 i2 = subdivpolylookupvert(verts + 3);
2408 for (i = 2;i < numverts;i++)
2410 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
2412 Con_Print("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
2416 i3 = subdivpolylookupvert(verts + i * 3);
2417 subdivpolyindex[subdivpolytriangles][0] = i1;
2418 subdivpolyindex[subdivpolytriangles][1] = i2;
2419 subdivpolyindex[subdivpolytriangles][2] = i3;
2421 subdivpolytriangles++;
2425 //Breaks a polygon up along axial 64 unit
2426 //boundaries so that turbulent and sky warps
2427 //can be done reasonably.
2428 static void Mod_Q1BSP_GenerateWarpMesh(msurface_t *surface)
2434 subdivpolytriangles = 0;
2435 subdivpolyverts = 0;
2436 SubdividePolygon(surface->num_vertices, (surface->mesh->data_vertex3f + 3 * surface->num_firstvertex));
2437 if (subdivpolytriangles < 1)
2438 Host_Error("Mod_Q1BSP_GenerateWarpMesh: no triangles?");
2440 surface->mesh = mesh = Mem_Alloc(loadmodel->mempool, sizeof(surfmesh_t) + subdivpolytriangles * sizeof(int[3]) + subdivpolyverts * sizeof(surfvertex_t));
2441 mesh->num_vertices = subdivpolyverts;
2442 mesh->num_triangles = subdivpolytriangles;
2443 mesh->vertex = (surfvertex_t *)(mesh + 1);
2444 mesh->index = (int *)(mesh->vertex + mesh->num_vertices);
2445 memset(mesh->vertex, 0, mesh->num_vertices * sizeof(surfvertex_t));
2447 for (i = 0;i < mesh->num_triangles;i++)
2448 for (j = 0;j < 3;j++)
2449 mesh->index[i*3+j] = subdivpolyindex[i][j];
2451 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
2453 VectorCopy(subdivpolyvert[i], v->v);
2454 v->st[0] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[0]);
2455 v->st[1] = DotProduct(v->v, surface->lightmapinfo->texinfo->vecs[1]);
2460 extern cvar_t gl_max_lightmapsize;
2461 static void Mod_Q1BSP_LoadFaces(sizebuf_t *sb)
2463 msurface_t *surface;
2464 int i, j, count, surfacenum, planenum, smax, tmax, ssize, tsize, firstedge, numedges, totalverts, totaltris, lightmapnumber, lightmapsize, totallightmapsamples, lightmapoffset, texinfoindex;
2465 float texmins[2], texmaxs[2], val;
2466 rtexture_t *lightmaptexture, *deluxemaptexture;
2468 int structsize = loadmodel->brush.isbsp2 ? 28 : 20;
2470 if (sb->cursize % structsize)
2471 Host_Error("Mod_Q1BSP_LoadFaces: funny lump size in %s",loadmodel->name);
2472 count = sb->cursize / structsize;
2473 loadmodel->data_surfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_t));
2474 loadmodel->data_surfaces_lightmapinfo = (msurface_lightmapinfo_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(msurface_lightmapinfo_t));
2476 loadmodel->num_surfaces = count;
2478 loadmodel->brushq1.firstrender = true;
2479 loadmodel->brushq1.lightmapupdateflags = (unsigned char *)Mem_Alloc(loadmodel->mempool, count*sizeof(unsigned char));
2483 for (surfacenum = 0;surfacenum < count;surfacenum++)
2485 if (loadmodel->brush.isbsp2)
2486 numedges = BuffLittleLong(sb->data + structsize * surfacenum + 12);
2488 numedges = BuffLittleShort(sb->data + structsize * surfacenum + 8);
2489 totalverts += numedges;
2490 totaltris += numedges - 2;
2493 Mod_AllocSurfMesh(loadmodel->mempool, totalverts, totaltris, true, false, false);
2495 lightmaptexture = NULL;
2496 deluxemaptexture = r_texture_blanknormalmap;
2498 lightmapsize = bound(256, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d);
2499 totallightmapsamples = 0;
2503 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2505 surface->lightmapinfo = loadmodel->data_surfaces_lightmapinfo + surfacenum;
2506 // the struct on disk is the same in BSP29 (Q1), BSP30 (HL1), and IBSP38 (Q2)
2507 planenum = loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2508 /*side = */loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2509 firstedge = MSG_ReadLittleLong(sb);
2510 numedges = loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2511 texinfoindex = loadmodel->brush.isbsp2 ? MSG_ReadLittleLong(sb) : (unsigned short)MSG_ReadLittleShort(sb);
2512 for (i = 0;i < MAXLIGHTMAPS;i++)
2513 surface->lightmapinfo->styles[i] = MSG_ReadByte(sb);
2514 lightmapoffset = MSG_ReadLittleLong(sb);
2516 // FIXME: validate edges, texinfo, etc?
2517 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)
2518 Host_Error("Mod_Q1BSP_LoadFaces: invalid edge range (firstedge %i, numedges %i, model edges %i)", firstedge, numedges, loadmodel->brushq1.numsurfedges);
2519 if ((unsigned int) texinfoindex >= (unsigned int) loadmodel->brushq1.numtexinfo)
2520 Host_Error("Mod_Q1BSP_LoadFaces: invalid texinfo index %i(model has %i texinfos)", texinfoindex, loadmodel->brushq1.numtexinfo);
2521 if ((unsigned int) planenum >= (unsigned int) loadmodel->brush.num_planes)
2522 Host_Error("Mod_Q1BSP_LoadFaces: invalid plane index %i (model has %i planes)", planenum, loadmodel->brush.num_planes);
2524 surface->lightmapinfo->texinfo = loadmodel->brushq1.texinfo + texinfoindex;
2525 surface->texture = loadmodel->data_textures + surface->lightmapinfo->texinfo->textureindex;
2527 // Q2BSP doesn't use lightmaps on sky or warped surfaces (water), but still has a lightofs of 0
2528 if (lightmapoffset == 0 && (surface->texture->q2flags & (Q2SURF_SKY | Q2SURF_WARP)))
2529 lightmapoffset = -1;
2531 //surface->flags = surface->texture->flags;
2532 //if (LittleShort(in->side))
2533 // surface->flags |= SURF_PLANEBACK;
2534 //surface->plane = loadmodel->brush.data_planes + planenum;
2536 surface->num_firstvertex = totalverts;
2537 surface->num_vertices = numedges;
2538 surface->num_firsttriangle = totaltris;
2539 surface->num_triangles = numedges - 2;
2540 totalverts += numedges;
2541 totaltris += numedges - 2;
2543 // convert edges back to a normal polygon
2544 for (i = 0;i < surface->num_vertices;i++)
2546 int lindex = loadmodel->brushq1.surfedges[firstedge + i];
2548 // note: the q1bsp format does not allow a 0 surfedge (it would have no negative counterpart)
2550 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[lindex].v[0]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2552 VectorCopy(loadmodel->brushq1.vertexes[loadmodel->brushq1.edges[-lindex].v[1]].position, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3);
2553 s = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2554 t = DotProduct(((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2555 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 0] = s / surface->texture->width;
2556 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[i * 2 + 1] = t / surface->texture->height;
2557 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = 0;
2558 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = 0;
2559 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = 0;
2562 for (i = 0;i < surface->num_triangles;i++)
2564 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 0] = 0 + surface->num_firstvertex;
2565 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 1] = i + 1 + surface->num_firstvertex;
2566 (loadmodel->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[i * 3 + 2] = i + 2 + surface->num_firstvertex;
2569 // compile additional data about the surface geometry
2570 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);
2571 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);
2572 BoxFromPoints(surface->mins, surface->maxs, surface->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex));
2574 // generate surface extents information
2575 texmins[0] = texmaxs[0] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[0]) + surface->lightmapinfo->texinfo->vecs[0][3];
2576 texmins[1] = texmaxs[1] = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), surface->lightmapinfo->texinfo->vecs[1]) + surface->lightmapinfo->texinfo->vecs[1][3];
2577 for (i = 1;i < surface->num_vertices;i++)
2579 for (j = 0;j < 2;j++)
2581 val = DotProduct((loadmodel->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + i * 3, surface->lightmapinfo->texinfo->vecs[j]) + surface->lightmapinfo->texinfo->vecs[j][3];
2582 texmins[j] = min(texmins[j], val);
2583 texmaxs[j] = max(texmaxs[j], val);
2586 for (i = 0;i < 2;i++)
2588 surface->lightmapinfo->texturemins[i] = (int) floor(texmins[i] / 16.0) * 16;
2589 surface->lightmapinfo->extents[i] = (int) ceil(texmaxs[i] / 16.0) * 16 - surface->lightmapinfo->texturemins[i];
2592 smax = surface->lightmapinfo->extents[0] >> 4;
2593 tmax = surface->lightmapinfo->extents[1] >> 4;
2594 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2595 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2598 surface->lightmaptexture = NULL;
2599 surface->deluxemaptexture = r_texture_blanknormalmap;
2600 if (lightmapoffset == -1)
2602 surface->lightmapinfo->samples = NULL;
2604 // give non-lightmapped water a 1x white lightmap
2605 if (!loadmodel->brush.isq2bsp && surface->texture->name[0] == '*' && (surface->lightmapinfo->texinfo->q1flags & TEX_SPECIAL) && ssize <= 256 && tsize <= 256)
2607 surface->lightmapinfo->samples = (unsigned char *)Mem_Alloc(loadmodel->mempool, ssize * tsize * 3);
2608 surface->lightmapinfo->styles[0] = 0;
2609 memset(surface->lightmapinfo->samples, 128, ssize * tsize * 3);
2613 else if (loadmodel->brush.ishlbsp || loadmodel->brush.isq2bsp) // LordHavoc: HalfLife map (bsp version 30)
2614 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + lightmapoffset;
2615 else // LordHavoc: white lighting (bsp version 29)
2617 surface->lightmapinfo->samples = loadmodel->brushq1.lightdata + (lightmapoffset * 3);
2618 if (loadmodel->brushq1.nmaplightdata)
2619 surface->lightmapinfo->nmapsamples = loadmodel->brushq1.nmaplightdata + (lightmapoffset * 3);
2622 // check if we should apply a lightmap to this
2623 if (!(surface->lightmapinfo->texinfo->q1flags & TEX_SPECIAL) || surface->lightmapinfo->samples)
2625 if (ssize > 256 || tsize > 256)
2626 Host_Error("Bad surface extents");
2628 if (lightmapsize < ssize)
2629 lightmapsize = ssize;
2630 if (lightmapsize < tsize)
2631 lightmapsize = tsize;
2633 totallightmapsamples += ssize*tsize;
2635 // force lightmap upload on first time seeing the surface
2637 // additionally this is used by the later code to see if a
2638 // lightmap is needed on this surface (rather than duplicating the
2640 loadmodel->brushq1.lightmapupdateflags[surfacenum] = true;
2641 loadmodel->lit = true;
2645 // small maps (such as ammo boxes especially) don't need big lightmap
2646 // textures, so this code tries to guess a good size based on
2647 // totallightmapsamples (size of the lightmaps lump basically), as well as
2648 // trying to max out the size if there is a lot of lightmap data to store
2649 // additionally, never choose a lightmapsize that is smaller than the
2650 // largest surface encountered (as it would fail)
2652 for (lightmapsize = 64; (lightmapsize < i) && (lightmapsize < bound(128, gl_max_lightmapsize.integer, (int)vid.maxtexturesize_2d)) && (totallightmapsamples > lightmapsize*lightmapsize); lightmapsize*=2)
2655 // now that we've decided the lightmap texture size, we can do the rest
2656 if (cls.state != ca_dedicated)
2658 int stainmapsize = 0;
2659 mod_alloclightmap_state_t allocState;
2661 Mod_AllocLightmap_Init(&allocState, lightmapsize, lightmapsize);
2662 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2664 int i, iu, iv, lightmapx = 0, lightmapy = 0;
2665 float u, v, ubase, vbase, uscale, vscale;
2667 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
2670 smax = surface->lightmapinfo->extents[0] >> 4;
2671 tmax = surface->lightmapinfo->extents[1] >> 4;
2672 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2673 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2674 stainmapsize += ssize * tsize * 3;
2676 if (!lightmaptexture || !Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy))
2678 // allocate a texture pool if we need it
2679 if (loadmodel->texturepool == NULL)
2680 loadmodel->texturepool = R_AllocTexturePool();
2681 // could not find room, make a new lightmap
2682 loadmodel->brushq3.num_mergedlightmaps = lightmapnumber + 1;
2683 loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Realloc(loadmodel->mempool, loadmodel->brushq3.data_lightmaps, loadmodel->brushq3.num_mergedlightmaps * sizeof(loadmodel->brushq3.data_lightmaps[0]));
2684 loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Realloc(loadmodel->mempool, loadmodel->brushq3.data_deluxemaps, loadmodel->brushq3.num_mergedlightmaps * sizeof(loadmodel->brushq3.data_deluxemaps[0]));
2685 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);
2686 if (loadmodel->brushq1.nmaplightdata)
2687 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);
2689 Mod_AllocLightmap_Reset(&allocState);
2690 Mod_AllocLightmap_Block(&allocState, ssize, tsize, &lightmapx, &lightmapy);
2692 surface->lightmaptexture = lightmaptexture;
2693 surface->deluxemaptexture = deluxemaptexture;
2694 surface->lightmapinfo->lightmaporigin[0] = lightmapx;
2695 surface->lightmapinfo->lightmaporigin[1] = lightmapy;
2697 uscale = 1.0f / (float)lightmapsize;
2698 vscale = 1.0f / (float)lightmapsize;
2699 ubase = lightmapx * uscale;
2700 vbase = lightmapy * vscale;
2702 for (i = 0;i < surface->num_vertices;i++)
2704 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);
2705 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);
2706 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 0] = u * uscale + ubase;
2707 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[i * 2 + 1] = v * vscale + vbase;
2708 // LordHavoc: calc lightmap data offset for vertex lighting to use
2711 (loadmodel->surfmesh.data_lightmapoffsets + surface->num_firstvertex)[i] = (bound(0, iv, tmax) * ssize + bound(0, iu, smax)) * 3;
2715 if (cl_stainmaps.integer)
2717 // allocate stainmaps for permanent marks on walls and clear white
2718 unsigned char *stainsamples = NULL;
2719 stainsamples = (unsigned char *)Mem_Alloc(loadmodel->mempool, stainmapsize);
2720 memset(stainsamples, 255, stainmapsize);
2722 for (surfacenum = 0, surface = loadmodel->data_surfaces;surfacenum < count;surfacenum++, surface++)
2724 if (!loadmodel->brushq1.lightmapupdateflags[surfacenum])
2726 ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
2727 tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
2728 surface->lightmapinfo->stainsamples = stainsamples;
2729 stainsamples += ssize * tsize * 3;
2734 // generate ushort elements array if possible
2735 if (loadmodel->surfmesh.data_element3s)
2736 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2737 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2740 static void Mod_Q1BSP_LoadNodes_RecursiveSetParent(mnode_t *node, mnode_t *parent)
2743 // Host_Error("Mod_Q1BSP_LoadNodes_RecursiveSetParent: runaway recursion");
2744 node->parent = parent;
2747 // this is a node, recurse to children
2748 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[0], node);
2749 Mod_Q1BSP_LoadNodes_RecursiveSetParent(node->children[1], node);
2750 // combine supercontents of children
2751 node->combinedsupercontents = node->children[0]->combinedsupercontents | node->children[1]->combinedsupercontents;
2756 mleaf_t *leaf = (mleaf_t *)node;
2757 // if this is a leaf, calculate supercontents mask from all collidable
2758 // primitives in the leaf (brushes and collision surfaces)
2759 // also flag if the leaf contains any collision surfaces
2760 leaf->combinedsupercontents = 0;
2761 // combine the supercontents values of all brushes in this leaf
2762 for (j = 0;j < leaf->numleafbrushes;j++)
2763 leaf->combinedsupercontents |= loadmodel->brush.data_brushes[leaf->firstleafbrush[j]].texture->supercontents;
2764 // check if this leaf contains any collision surfaces (q3 patches)
2765 for (j = 0;j < leaf->numleafsurfaces;j++)
2767 msurface_t *surface = loadmodel->data_surfaces + leaf->firstleafsurface[j];
2768 if (surface->num_collisiontriangles)
2770 leaf->containscollisionsurfaces = true;
2771 leaf->combinedsupercontents |= surface->texture->supercontents;
2777 static void Mod_Q1BSP_LoadNodes(sizebuf_t *sb)
2779 int i, j, count, p, child[2];
2781 int structsize = loadmodel->brush.isbsp2rmqe ? 32 : (loadmodel->brush.isbsp2 ? 44 : 24);
2783 if (sb->cursize % structsize)
2784 Host_Error("Mod_Q1BSP_LoadNodes: funny lump size in %s",loadmodel->name);
2785 count = sb->cursize / structsize;
2787 Host_Error("Mod_Q1BSP_LoadNodes: missing BSP tree in %s",loadmodel->name);
2788 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2790 loadmodel->brush.data_nodes = out;
2791 loadmodel->brush.num_nodes = count;
2793 for ( i=0 ; i<count ; i++, out++)
2795 p = MSG_ReadLittleLong(sb);
2796 out->plane = loadmodel->brush.data_planes + p;
2798 if (loadmodel->brush.isbsp2rmqe)
2800 child[0] = MSG_ReadLittleLong(sb);
2801 child[1] = MSG_ReadLittleLong(sb);
2802 out->mins[0] = MSG_ReadLittleShort(sb);
2803 out->mins[1] = MSG_ReadLittleShort(sb);
2804 out->mins[2] = MSG_ReadLittleShort(sb);
2805 out->maxs[0] = MSG_ReadLittleShort(sb);
2806 out->maxs[1] = MSG_ReadLittleShort(sb);
2807 out->maxs[2] = MSG_ReadLittleShort(sb);
2808 out->firstsurface = MSG_ReadLittleLong(sb);
2809 out->numsurfaces = MSG_ReadLittleLong(sb);
2811 else if (loadmodel->brush.isbsp2)
2813 child[0] = MSG_ReadLittleLong(sb);
2814 child[1] = MSG_ReadLittleLong(sb);
2815 out->mins[0] = MSG_ReadLittleFloat(sb);
2816 out->mins[1] = MSG_ReadLittleFloat(sb);
2817 out->mins[2] = MSG_ReadLittleFloat(sb);
2818 out->maxs[0] = MSG_ReadLittleFloat(sb);
2819 out->maxs[1] = MSG_ReadLittleFloat(sb);
2820 out->maxs[2] = MSG_ReadLittleFloat(sb);
2821 out->firstsurface = MSG_ReadLittleLong(sb);
2822 out->numsurfaces = MSG_ReadLittleLong(sb);
2826 child[0] = (unsigned short)MSG_ReadLittleShort(sb);
2827 child[1] = (unsigned short)MSG_ReadLittleShort(sb);
2828 if (child[0] >= count)
2830 if (child[1] >= count)
2833 out->mins[0] = MSG_ReadLittleShort(sb);
2834 out->mins[1] = MSG_ReadLittleShort(sb);
2835 out->mins[2] = MSG_ReadLittleShort(sb);
2836 out->maxs[0] = MSG_ReadLittleShort(sb);
2837 out->maxs[1] = MSG_ReadLittleShort(sb);
2838 out->maxs[2] = MSG_ReadLittleShort(sb);
2840 out->firstsurface = (unsigned short)MSG_ReadLittleShort(sb);
2841 out->numsurfaces = (unsigned short)MSG_ReadLittleShort(sb);
2844 for (j=0 ; j<2 ; j++)
2846 // LordHavoc: this code supports broken bsp files produced by
2847 // arguire qbsp which can produce more than 32768 nodes, any value
2848 // below count is assumed to be a node number, any other value is
2849 // assumed to be a leaf number
2853 if (p < loadmodel->brush.num_nodes)
2854 out->children[j] = loadmodel->brush.data_nodes + p;
2857 Con_Printf("Mod_Q1BSP_LoadNodes: invalid node index %i (file has only %i nodes)\n", p, loadmodel->brush.num_nodes);
2858 // map it to the solid leaf
2859 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
2864 // get leaf index as a positive value starting at 0 (-1 becomes 0, -2 becomes 1, etc)
2866 if (p < loadmodel->brush.num_leafs)
2867 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + p);
2870 Con_Printf("Mod_Q1BSP_LoadNodes: invalid leaf index %i (file has only %i leafs)\n", p, loadmodel->brush.num_leafs);
2871 // map it to the solid leaf
2872 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
2878 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
2881 static void Mod_Q1BSP_LoadLeafs(sizebuf_t *sb)
2884 int i, j, count, p, firstmarksurface, nummarksurfaces;
2885 int structsize = loadmodel->brush.isbsp2rmqe ? 32 : (loadmodel->brush.isbsp2 ? 44 : 28);
2887 if (sb->cursize % structsize)
2888 Host_Error("Mod_Q1BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
2889 count = sb->cursize / structsize;
2890 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
2892 loadmodel->brush.data_leafs = out;
2893 loadmodel->brush.num_leafs = count;
2894 // get visleafs from the submodel data
2895 loadmodel->brush.num_pvsclusters = loadmodel->brushq1.submodels[0].visleafs;
2896 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters+7)>>3;
2897 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2898 memset(loadmodel->brush.data_pvsclusters, 0xFF, loadmodel->brush.num_pvsclusters * loadmodel->brush.num_pvsclusterbytes);
2900 // FIXME: this function could really benefit from some error checking
2901 for ( i=0 ; i<count ; i++, out++)
2903 out->contents = MSG_ReadLittleLong(sb);
2905 out->clusterindex = i - 1;
2906 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
2907 out->clusterindex = -1;
2909 p = MSG_ReadLittleLong(sb);
2910 // ignore visofs errors on leaf 0 (solid)
2911 if (p >= 0 && out->clusterindex >= 0)
2913 if (p >= loadmodel->brushq1.num_compressedpvs)
2914 Con_Print("Mod_Q1BSP_LoadLeafs: invalid visofs\n");
2916 Mod_Q1BSP_DecompressVis(loadmodel->brushq1.data_compressedpvs + p, loadmodel->brushq1.data_compressedpvs + loadmodel->brushq1.num_compressedpvs, loadmodel->brush.data_pvsclusters + out->clusterindex * loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.data_pvsclusters + (out->clusterindex + 1) * loadmodel->brush.num_pvsclusterbytes);
2919 if (loadmodel->brush.isbsp2rmqe)
2921 out->mins[0] = MSG_ReadLittleShort(sb);
2922 out->mins[1] = MSG_ReadLittleShort(sb);
2923 out->mins[2] = MSG_ReadLittleShort(sb);
2924 out->maxs[0] = MSG_ReadLittleShort(sb);
2925 out->maxs[1] = MSG_ReadLittleShort(sb);
2926 out->maxs[2] = MSG_ReadLittleShort(sb);
2928 firstmarksurface = MSG_ReadLittleLong(sb);
2929 nummarksurfaces = MSG_ReadLittleLong(sb);
2931 else if (loadmodel->brush.isbsp2)
2933 out->mins[0] = MSG_ReadLittleFloat(sb);
2934 out->mins[1] = MSG_ReadLittleFloat(sb);
2935 out->mins[2] = MSG_ReadLittleFloat(sb);
2936 out->maxs[0] = MSG_ReadLittleFloat(sb);
2937 out->maxs[1] = MSG_ReadLittleFloat(sb);
2938 out->maxs[2] = MSG_ReadLittleFloat(sb);
2940 firstmarksurface = MSG_ReadLittleLong(sb);
2941 nummarksurfaces = MSG_ReadLittleLong(sb);
2945 out->mins[0] = MSG_ReadLittleShort(sb);
2946 out->mins[1] = MSG_ReadLittleShort(sb);
2947 out->mins[2] = MSG_ReadLittleShort(sb);
2948 out->maxs[0] = MSG_ReadLittleShort(sb);
2949 out->maxs[1] = MSG_ReadLittleShort(sb);
2950 out->maxs[2] = MSG_ReadLittleShort(sb);
2952 firstmarksurface = (unsigned short)MSG_ReadLittleShort(sb);
2953 nummarksurfaces = (unsigned short)MSG_ReadLittleShort(sb);
2956 if (firstmarksurface >= 0 && firstmarksurface + nummarksurfaces <= loadmodel->brush.num_leafsurfaces)
2958 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + firstmarksurface;
2959 out->numleafsurfaces = nummarksurfaces;
2963 Con_Printf("Mod_Q1BSP_LoadLeafs: invalid leafsurface range %i:%i outside range %i:%i\n", firstmarksurface, firstmarksurface+nummarksurfaces, 0, loadmodel->brush.num_leafsurfaces);
2964 out->firstleafsurface = NULL;
2965 out->numleafsurfaces = 0;
2968 for (j = 0;j < 4;j++)
2969 out->ambient_sound_level[j] = MSG_ReadByte(sb);
2973 static qboolean Mod_Q1BSP_CheckWaterAlphaSupport(void)
2977 const unsigned char *pvs;
2978 // if there's no vis data, assume supported (because everything is visible all the time)
2979 if (!loadmodel->brush.data_pvsclusters)
2981 // check all liquid leafs to see if they can see into empty leafs, if any
2982 // can we can assume this map supports r_wateralpha
2983 for (i = 0, leaf = loadmodel->brush.data_leafs;i < loadmodel->brush.num_leafs;i++, leaf++)
2985 if ((leaf->contents == CONTENTS_WATER || leaf->contents == CONTENTS_SLIME) && leaf->clusterindex >= 0)
2987 pvs = loadmodel->brush.data_pvsclusters + leaf->clusterindex * loadmodel->brush.num_pvsclusterbytes;
2988 for (j = 0;j < loadmodel->brush.num_leafs;j++)
2989 if (CHECKPVSBIT(pvs, loadmodel->brush.data_leafs[j].clusterindex) && loadmodel->brush.data_leafs[j].contents == CONTENTS_EMPTY)
2996 static void Mod_Q1BSP_LoadClipnodes(sizebuf_t *sb, hullinfo_t *hullinfo)
3001 int structsize = loadmodel->brush.isbsp2 ? 12 : 8;
3003 if (sb->cursize % structsize)
3004 Host_Error("Mod_Q1BSP_LoadClipnodes: funny lump size in %s",loadmodel->name);
3005 count = sb->cursize / structsize;
3006 out = (mclipnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
3008 loadmodel->brushq1.clipnodes = out;
3009 loadmodel->brushq1.numclipnodes = count;
3011 for (i = 1; i < MAX_MAP_HULLS; i++)
3013 hull = &loadmodel->brushq1.hulls[i];
3014 hull->clipnodes = out;
3015 hull->firstclipnode = 0;
3016 hull->lastclipnode = count-1;
3017 hull->planes = loadmodel->brush.data_planes;
3018 hull->clip_mins[0] = hullinfo->hullsizes[i][0][0];
3019 hull->clip_mins[1] = hullinfo->hullsizes[i][0][1];
3020 hull->clip_mins[2] = hullinfo->hullsizes[i][0][2];
3021 hull->clip_maxs[0] = hullinfo->hullsizes[i][1][0];
3022 hull->clip_maxs[1] = hullinfo->hullsizes[i][1][1];
3023 hull->clip_maxs[2] = hullinfo->hullsizes[i][1][2];
3024 VectorSubtract(hull->clip_maxs, hull->clip_mins, hull->clip_size);
3027 for (i=0 ; i<count ; i++, out++)
3029 out->planenum = MSG_ReadLittleLong(sb);
3030 if (out->planenum < 0 || out->planenum >= loadmodel->brush.num_planes)
3031 Host_Error("%s: Corrupt clipping hull(out of range planenum)", loadmodel->name);
3032 if (loadmodel->brush.isbsp2)
3034 out->children[0] = MSG_ReadLittleLong(sb);
3035 out->children[1] = MSG_ReadLittleLong(sb);
3036 if (out->children[0] >= count)
3037 Host_Error("%s: Corrupt clipping hull (invalid child index)", loadmodel->name);
3038 if (out->children[1] >= count)
3039 Host_Error("%s: Corrupt clipping hull (invalid child index)", loadmodel->name);
3043 // LordHavoc: this code supports arguire qbsp's broken clipnodes indices (more than 32768 clipnodes), values above count are assumed to be contents values
3044 out->children[0] = (unsigned short)MSG_ReadLittleShort(sb);
3045 out->children[1] = (unsigned short)MSG_ReadLittleShort(sb);
3046 if (out->children[0] >= count)
3047 out->children[0] -= 65536;
3048 if (out->children[1] >= count)
3049 out->children[1] -= 65536;
3054 //Duplicate the drawing hull structure as a clipping hull
3055 static void Mod_Q1BSP_MakeHull0(void)
3062 hull = &loadmodel->brushq1.hulls[0];
3064 in = loadmodel->brush.data_nodes;
3065 out = (mclipnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_nodes * sizeof(*out));
3067 hull->clipnodes = out;
3068 hull->firstclipnode = 0;
3069 hull->lastclipnode = loadmodel->brush.num_nodes - 1;
3070 hull->planes = loadmodel->brush.data_planes;
3072 for (i = 0;i < loadmodel->brush.num_nodes;i++, out++, in++)
3074 out->planenum = in->plane - loadmodel->brush.data_planes;
3075 out->children[0] = in->children[0]->plane ? in->children[0] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[0])->contents;
3076 out->children[1] = in->children[1]->plane ? in->children[1] - loadmodel->brush.data_nodes : ((mleaf_t *)in->children[1])->contents;
3080 static void Mod_Q1BSP_LoadLeaffaces(sizebuf_t *sb)
3083 int structsize = loadmodel->brush.isbsp2 ? 4 : 2;
3085 if (sb->cursize % structsize)
3086 Host_Error("Mod_Q1BSP_LoadLeaffaces: funny lump size in %s",loadmodel->name);
3087 loadmodel->brush.num_leafsurfaces = sb->cursize / structsize;
3088 loadmodel->brush.data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafsurfaces * sizeof(int));
3090 if (loadmodel->brush.isbsp2)
3092 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
3094 j = MSG_ReadLittleLong(sb);
3095 if (j < 0 || j >= loadmodel->num_surfaces)
3096 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
3097 loadmodel->brush.data_leafsurfaces[i] = j;
3102 for (i = 0;i < loadmodel->brush.num_leafsurfaces;i++)
3104 j = (unsigned short) MSG_ReadLittleShort(sb);
3105 if (j >= loadmodel->num_surfaces)
3106 Host_Error("Mod_Q1BSP_LoadLeaffaces: bad surface number");
3107 loadmodel->brush.data_leafsurfaces[i] = j;
3112 static void Mod_Q1BSP_LoadSurfedges(sizebuf_t *sb)
3117 if (sb->cursize % structsize)
3118 Host_Error("Mod_Q1BSP_LoadSurfedges: funny lump size in %s",loadmodel->name);
3119 loadmodel->brushq1.numsurfedges = sb->cursize / structsize;
3120 loadmodel->brushq1.surfedges = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brushq1.numsurfedges * sizeof(int));
3122 for (i = 0;i < loadmodel->brushq1.numsurfedges;i++)
3123 loadmodel->brushq1.surfedges[i] = MSG_ReadLittleLong(sb);
3127 static void Mod_Q1BSP_LoadPlanes(sizebuf_t *sb)
3131 int structsize = 20;
3133 if (sb->cursize % structsize)
3134 Host_Error("Mod_Q1BSP_LoadPlanes: funny lump size in %s", loadmodel->name);
3135 loadmodel->brush.num_planes = sb->cursize / structsize;
3136 loadmodel->brush.data_planes = out = (mplane_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_planes * sizeof(*out));
3138 for (i = 0;i < loadmodel->brush.num_planes;i++, out++)
3140 out->normal[0] = MSG_ReadLittleFloat(sb);
3141 out->normal[1] = MSG_ReadLittleFloat(sb);
3142 out->normal[2] = MSG_ReadLittleFloat(sb);
3143 out->dist = MSG_ReadLittleFloat(sb);
3144 MSG_ReadLittleLong(sb); // type is not used, we use PlaneClassify
3149 static void Mod_Q1BSP_LoadMapBrushes(void)
3153 int submodel, numbrushes;
3154 qboolean firstbrush;
3155 char *text, *maptext;
3156 char mapfilename[MAX_QPATH];
3157 FS_StripExtension (loadmodel->name, mapfilename, sizeof (mapfilename));
3158 strlcat (mapfilename, ".map", sizeof (mapfilename));
3159 maptext = (unsigned char*) FS_LoadFile(mapfilename, tempmempool, false, NULL);
3163 if (!COM_ParseToken_Simple(&data, false, false, true))
3168 if (!COM_ParseToken_Simple(&data, false, false, true))
3170 if (com_token[0] != '{')
3176 brushes = Mem_Alloc(loadmodel->mempool, maxbrushes * sizeof(mbrush_t));
3179 if (!COM_ParseToken_Simple(&data, false, false, true))
3181 if (com_token[0] == '}')
3182 break; // end of entity
3183 if (com_token[0] == '{')
3190 if (submodel > loadmodel->brush.numsubmodels)
3192 Con_Printf("Mod_Q1BSP_LoadMapBrushes: .map has more submodels than .bsp!\n");
3196 model = loadmodel->brush.submodels[submodel];
3203 if (!COM_ParseToken_Simple(&data, false, false, true))
3205 if (com_token[0] == '}')
3206 break; // end of brush
3207 // each brush face should be this format:
3208 // ( x y z ) ( x y z ) ( x y z ) texture scroll_s scroll_t rotateangle scale_s scale_t
3209 // FIXME: support hl .map format
3210 for (pointnum = 0;pointnum < 3;pointnum++)
3212 COM_ParseToken_Simple(&data, false, false, true);
3213 for (componentnum = 0;componentnum < 3;componentnum++)
3215 COM_ParseToken_Simple(&data, false, false, true);
3216 point[pointnum][componentnum] = atof(com_token);
3218 COM_ParseToken_Simple(&data, false, false, true);
3220 COM_ParseToken_Simple(&data, false, false, true);
3221 strlcpy(facetexture, com_token, sizeof(facetexture));
3222 COM_ParseToken_Simple(&data, false, false, true);
3223 //scroll_s = atof(com_token);
3224 COM_ParseToken_Simple(&data, false, false, true);
3225 //scroll_t = atof(com_token);
3226 COM_ParseToken_Simple(&data, false, false, true);
3227 //rotate = atof(com_token);
3228 COM_ParseToken_Simple(&data, false, false, true);
3229 //scale_s = atof(com_token);
3230 COM_ParseToken_Simple(&data, false, false, true);
3231 //scale_t = atof(com_token);
3232 TriangleNormal(point[0], point[1], point[2], planenormal);
3233 VectorNormalizeDouble(planenormal);
3234 planedist = DotProduct(point[0], planenormal);
3235 //ChooseTexturePlane(planenormal, texturevector[0], texturevector[1]);
3245 #define MAX_PORTALPOINTS 64
3247 typedef struct portal_s
3250 mnode_t *nodes[2]; // [0] = front side of plane
3251 struct portal_s *next[2];
3253 double points[3*MAX_PORTALPOINTS];
3254 struct portal_s *chain; // all portals are linked into a list
3258 static memexpandablearray_t portalarray;
3260 static void Mod_Q1BSP_RecursiveRecalcNodeBBox(mnode_t *node)
3262 // process only nodes (leafs already had their box calculated)
3266 // calculate children first
3267 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[0]);
3268 Mod_Q1BSP_RecursiveRecalcNodeBBox(node->children[1]);
3270 // make combined bounding box from children
3271 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
3272 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
3273 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
3274 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
3275 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
3276 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
3279 static void Mod_Q1BSP_FinalizePortals(void)
3281 int i, j, numportals, numpoints, portalindex, portalrange = (int)Mem_ExpandableArray_IndexRange(&portalarray);
3285 mleaf_t *leaf, *endleaf;
3287 // tally up portal and point counts and recalculate bounding boxes for all
3288 // leafs (because qbsp is very sloppy)
3289 leaf = loadmodel->brush.data_leafs;
3290 endleaf = leaf + loadmodel->brush.num_leafs;
3291 if (mod_recalculatenodeboxes.integer)
3293 for (;leaf < endleaf;leaf++)
3295 VectorSet(leaf->mins, 2000000000, 2000000000, 2000000000);
3296 VectorSet(leaf->maxs, -2000000000, -2000000000, -2000000000);
3301 for (portalindex = 0;portalindex < portalrange;portalindex++)
3303 p = (portal_t*)Mem_ExpandableArray_RecordAtIndex(&portalarray, portalindex);
3306 // note: this check must match the one below or it will usually corrupt memory
3307 // 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
3308 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1] && ((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
3311 numpoints += p->numpoints * 2;
3314 loadmodel->brush.data_portals = (mportal_t *)Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
3315 loadmodel->brush.num_portals = numportals;
3316 loadmodel->brush.data_portalpoints = (mvertex_t *)((unsigned char *) loadmodel->brush.data_portals + numportals * sizeof(mportal_t));
3317 loadmodel->brush.num_portalpoints = numpoints;
3318 // clear all leaf portal chains
3319 for (i = 0;i < loadmodel->brush.num_leafs;i++)
3320 loadmodel->brush.data_leafs[i].portals = NULL;
3321 // process all portals in the global portal chain, while freeing them
3322 portal = loadmodel->brush.data_portals;
3323 point = loadmodel->brush.data_portalpoints;
3324 for (portalindex = 0;portalindex < portalrange;portalindex++)
3326 p = (portal_t*)Mem_ExpandableArray_RecordAtIndex(&portalarray, portalindex);
3329 if (p->numpoints >= 3 && p->nodes[0] != p->nodes[1])
3331 // note: this check must match the one above or it will usually corrupt memory
3332 // 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
3333 if (((mleaf_t *)p->nodes[0])->clusterindex >= 0 && ((mleaf_t *)p->nodes[1])->clusterindex >= 0)
3335 // first make the back to front portal(forward portal)
3336 portal->points = point;
3337 portal->numpoints = p->numpoints;
3338 portal->plane.dist = p->plane.dist;
3339 VectorCopy(p->plane.normal, portal->plane.normal);
3340 portal->here = (mleaf_t *)p->nodes[1];
3341 portal->past = (mleaf_t *)p->nodes[0];
3343 for (j = 0;j < portal->numpoints;j++)
3345 VectorCopy(p->points + j*3, point->position);
3348 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
3349 PlaneClassify(&portal->plane);
3351 // link into leaf's portal chain
3352 portal->next = portal->here->portals;
3353 portal->here->portals = portal;
3355 // advance to next portal
3358 // then make the front to back portal(backward portal)
3359 portal->points = point;
3360 portal->numpoints = p->numpoints;
3361 portal->plane.dist = -p->plane.dist;
3362 VectorNegate(p->plane.normal, portal->plane.normal);
3363 portal->here = (mleaf_t *)p->nodes[0];
3364 portal->past = (mleaf_t *)p->nodes[1];
3366 for (j = portal->numpoints - 1;j >= 0;j--)
3368 VectorCopy(p->points + j*3, point->position);
3371 BoxFromPoints(portal->mins, portal->maxs, portal->numpoints, portal->points->position);
3372 PlaneClassify(&portal->plane);
3374 // link into leaf's portal chain
3375 portal->next = portal->here->portals;
3376 portal->here->portals = portal;
3378 // advance to next portal
3381 // add the portal's polygon points to the leaf bounding boxes
3382 if (mod_recalculatenodeboxes.integer)
3384 for (i = 0;i < 2;i++)
3386 leaf = (mleaf_t *)p->nodes[i];
3387 for (j = 0;j < p->numpoints;j++)
3389 if (leaf->mins[0] > p->points[j*3+0]) leaf->mins[0] = p->points[j*3+0];
3390 if (leaf->mins[1] > p->points[j*3+1]) leaf->mins[1] = p->points[j*3+1];
3391 if (leaf->mins[2] > p->points[j*3+2]) leaf->mins[2] = p->points[j*3+2];
3392 if (leaf->maxs[0] < p->points[j*3+0]) leaf->maxs[0] = p->points[j*3+0];
3393 if (leaf->maxs[1] < p->points[j*3+1]) leaf->maxs[1] = p->points[j*3+1];
3394 if (leaf->maxs[2] < p->points[j*3+2]) leaf->maxs[2] = p->points[j*3+2];
3400 // now recalculate the node bounding boxes from the leafs
3401 if (mod_recalculatenodeboxes.integer)
3402 Mod_Q1BSP_RecursiveRecalcNodeBBox(loadmodel->brush.data_nodes + loadmodel->brushq1.hulls[0].firstclipnode);
3410 static void AddPortalToNodes(portal_t *p, mnode_t *front, mnode_t *back)
3413 Host_Error("AddPortalToNodes: NULL front node");
3415 Host_Error("AddPortalToNodes: NULL back node");
3416 if (p->nodes[0] || p->nodes[1])
3417 Host_Error("AddPortalToNodes: already included");
3418 // 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
3420 p->nodes[0] = front;
3421 p->next[0] = (portal_t *)front->portals;
3422 front->portals = (mportal_t *)p;
3425 p->next[1] = (portal_t *)back->portals;
3426 back->portals = (mportal_t *)p;
3431 RemovePortalFromNode
3434 static void RemovePortalFromNodes(portal_t *portal)
3438 void **portalpointer;
3440 for (i = 0;i < 2;i++)
3442 node = portal->nodes[i];
3444 portalpointer = (void **) &node->portals;
3447 t = (portal_t *)*portalpointer;
3449 Host_Error("RemovePortalFromNodes: portal not in leaf");
3453 if (portal->nodes[0] == node)
3455 *portalpointer = portal->next[0];
3456 portal->nodes[0] = NULL;
3458 else if (portal->nodes[1] == node)
3460 *portalpointer = portal->next[1];
3461 portal->nodes[1] = NULL;
3464 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
3468 if (t->nodes[0] == node)
3469 portalpointer = (void **) &t->next[0];
3470 else if (t->nodes[1] == node)
3471 portalpointer = (void **) &t->next[1];
3473 Host_Error("RemovePortalFromNodes: portal not bounding leaf");
3478 #define PORTAL_DIST_EPSILON (1.0 / 32.0)
3479 static double *portalpointsbuffer;
3480 static int portalpointsbufferoffset;
3481 static int portalpointsbuffersize;
3482 static void Mod_Q1BSP_RecursiveNodePortals(mnode_t *node)
3485 mnode_t *front, *back, *other_node;
3486 mplane_t clipplane, *plane;
3487 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
3488 int numfrontpoints, numbackpoints;
3489 double *frontpoints, *backpoints;
3491 // if a leaf, we're done
3495 // get some space for our clipping operations to use
3496 if (portalpointsbuffersize < portalpointsbufferoffset + 6*MAX_PORTALPOINTS)
3498 portalpointsbuffersize = portalpointsbufferoffset * 2;
3499 portalpointsbuffer = (double *)Mem_Realloc(loadmodel->mempool, portalpointsbuffer, portalpointsbuffersize * sizeof(*portalpointsbuffer));
3501 frontpoints = portalpointsbuffer + portalpointsbufferoffset;
3502 portalpointsbufferoffset += 3*MAX_PORTALPOINTS;
3503 backpoints = portalpointsbuffer + portalpointsbufferoffset;
3504 portalpointsbufferoffset += 3*MAX_PORTALPOINTS;
3506 plane = node->plane;
3508 front = node->children[0];
3509 back = node->children[1];
3511 Host_Error("Mod_Q1BSP_RecursiveNodePortals: corrupt node hierarchy");
3513 // create the new portal by generating a polygon for the node plane,
3514 // and clipping it by all of the other portals(which came from nodes above this one)
3515 nodeportal = (portal_t *)Mem_ExpandableArray_AllocRecord(&portalarray);
3516 nodeportal->plane = *plane;
3518 // 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)
3519 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);
3520 nodeportal->numpoints = 4;
3521 // side = 0; // shut up compiler warning -> should be no longer needed, Host_Error is declared noreturn now
3522 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
3524 clipplane = portal->plane;
3525 if (portal->nodes[0] == portal->nodes[1])
3526 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(1)");
3527 if (portal->nodes[0] == node)
3529 else if (portal->nodes[1] == node)
3531 clipplane.dist = -clipplane.dist;
3532 VectorNegate(clipplane.normal, clipplane.normal);
3537 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
3538 side = 0; // hush warning
3541 for (i = 0;i < nodeportal->numpoints*3;i++)
3542 frontpoints[i] = nodeportal->points[i];
3543 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);
3544 if (nodeportal->numpoints <= 0 || nodeportal->numpoints >= MAX_PORTALPOINTS)
3548 if (nodeportal->numpoints < 3)
3550 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal was clipped away\n");
3551 nodeportal->numpoints = 0;
3553 else if (nodeportal->numpoints >= MAX_PORTALPOINTS)
3555 Con_Print("Mod_Q1BSP_RecursiveNodePortals: WARNING: new portal has too many points\n");
3556 nodeportal->numpoints = 0;
3559 AddPortalToNodes(nodeportal, front, back);
3561 // split the portals of this node along this node's plane and assign them to the children of this node
3562 // (migrating the portals downward through the tree)
3563 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
3565 if (portal->nodes[0] == portal->nodes[1])
3566 Host_Error("Mod_Q1BSP_RecursiveNodePortals: portal has same node on both sides(2)");
3567 if (portal->nodes[0] == node)
3569 else if (portal->nodes[1] == node)
3573 Host_Error("Mod_Q1BSP_RecursiveNodePortals: mislinked portal");
3574 side = 0; // hush warning
3576 nextportal = portal->next[side];
3577 if (!portal->numpoints)
3580 other_node = portal->nodes[!side];
3581 RemovePortalFromNodes(portal);
3583 // cut the portal into two portals, one on each side of the node plane
3584 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);
3586 if (!numfrontpoints)
3589 AddPortalToNodes(portal, back, other_node);
3591 AddPortalToNodes(portal, other_node, back);
3597 AddPortalToNodes(portal, front, other_node);
3599 AddPortalToNodes(portal, other_node, front);
3603 // the portal is split
3604 splitportal = (portal_t *)Mem_ExpandableArray_AllocRecord(&portalarray);
3605 temp = splitportal->chain;
3606 *splitportal = *portal;
3607 splitportal->chain = temp;
3608 for (i = 0;i < numbackpoints*3;i++)
3609 splitportal->points[i] = backpoints[i];
3610 splitportal->numpoints = numbackpoints;
3611 for (i = 0;i < numfrontpoints*3;i++)
3612 portal->points[i] = frontpoints[i];
3613 portal->numpoints = numfrontpoints;
3617 AddPortalToNodes(portal, front, other_node);
3618 AddPortalToNodes(splitportal, back, other_node);
3622 AddPortalToNodes(portal, other_node, front);
3623 AddPortalToNodes(splitportal, other_node, back);
3627 Mod_Q1BSP_RecursiveNodePortals(front);
3628 Mod_Q1BSP_RecursiveNodePortals(back);
3630 portalpointsbufferoffset -= 6*MAX_PORTALPOINTS;
3633 static void Mod_Q1BSP_MakePortals(void)
3635 Mem_ExpandableArray_NewArray(&portalarray, loadmodel->mempool, sizeof(portal_t), 1020*1024/sizeof(portal_t));
3636 portalpointsbufferoffset = 0;
3637 portalpointsbuffersize = 6*MAX_PORTALPOINTS*128;
3638 portalpointsbuffer = (double *)Mem_Alloc(loadmodel->mempool, portalpointsbuffersize * sizeof(*portalpointsbuffer));
3639 Mod_Q1BSP_RecursiveNodePortals(loadmodel->brush.data_nodes + loadmodel->brushq1.hulls[0].firstclipnode);
3640 Mem_Free(portalpointsbuffer);
3641 portalpointsbuffer = NULL;
3642 portalpointsbufferoffset = 0;
3643 portalpointsbuffersize = 0;
3644 Mod_Q1BSP_FinalizePortals();
3645 Mem_ExpandableArray_FreeArray(&portalarray);
3648 //Returns PVS data for a given point
3649 //(note: can return NULL)
3650 static unsigned char *Mod_Q1BSP_GetPVS(dp_model_t *model, const vec3_t p)
3653 node = model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode;
3655 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct(p,node->plane->normal)) < node->plane->dist];
3656 if (((mleaf_t *)node)->clusterindex >= 0)
3657 return model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3662 static void Mod_Q1BSP_FatPVS_RecursiveBSPNode(dp_model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbytes, mnode_t *node)
3666 float d = PlaneDiff(org, node->plane);
3668 node = node->children[0];
3669 else if (d < -radius)
3670 node = node->children[1];
3673 // go down both sides
3674 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, pvsbytes, node->children[0]);
3675 node = node->children[1];
3678 // if this leaf is in a cluster, accumulate the pvs bits
3679 if (((mleaf_t *)node)->clusterindex >= 0)
3682 unsigned char *pvs = model->brush.data_pvsclusters + ((mleaf_t *)node)->clusterindex * model->brush.num_pvsclusterbytes;
3683 for (i = 0;i < pvsbytes;i++)
3684 pvsbuffer[i] |= pvs[i];
3688 //Calculates a PVS that is the inclusive or of all leafs within radius pixels
3689 //of the given point.
3690 static int Mod_Q1BSP_FatPVS(dp_model_t *model, const vec3_t org, vec_t radius, unsigned char *pvsbuffer, int pvsbufferlength, qboolean merge)
3692 int bytes = model->brush.num_pvsclusterbytes;
3693 bytes = min(bytes, pvsbufferlength);
3694 if (r_novis.integer || r_trippy.integer || !model->brush.num_pvsclusters || !Mod_Q1BSP_GetPVS(model, org))
3696 memset(pvsbuffer, 0xFF, bytes);
3700 memset(pvsbuffer, 0, bytes);
3701 Mod_Q1BSP_FatPVS_RecursiveBSPNode(model, org, radius, pvsbuffer, bytes, model->brush.data_nodes + model->brushq1.hulls[0].firstclipnode);
3705 static void Mod_Q1BSP_RoundUpToHullSize(dp_model_t *cmodel, const vec3_t inmins, const vec3_t inmaxs, vec3_t outmins, vec3_t outmaxs)
3710 VectorSubtract(inmaxs, inmins, size);
3711 if (cmodel->brush.ishlbsp)
3714 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3715 else if (size[0] <= 32)
3717 if (size[2] < 54) // pick the nearest of 36 or 72
3718 hull = &cmodel->brushq1.hulls[3]; // 32x32x36
3720 hull = &cmodel->brushq1.hulls[1]; // 32x32x72
3723 hull = &cmodel->brushq1.hulls[2]; // 64x64x64
3728 hull = &cmodel->brushq1.hulls[0]; // 0x0x0
3729 else if (size[0] <= 32)
3730 hull = &cmodel->brushq1.hulls[1]; // 32x32x56
3732 hull = &cmodel->brushq1.hulls[2]; // 64x64x88
3734 VectorCopy(inmins, outmins);
3735 VectorAdd(inmins, hull->clip_size, outmaxs);
3738 static int Mod_Q1BSP_CreateShadowMesh(dp_model_t *mod)
3741 int numshadowmeshtriangles = 0;
3742 msurface_t *surface;
3743 if (cls.state == ca_dedicated)
3745 // make a single combined shadow mesh to allow optimized shadow volume creation
3747 for (j = 0, surface = mod->data_surfaces;j < mod->num_surfaces;j++, surface++)
3749 surface->num_firstshadowmeshtriangle = numshadowmeshtriangles;
3750 numshadowmeshtriangles += surface->num_triangles;
3752 mod->brush.shadowmesh = Mod_ShadowMesh_Begin(mod->mempool, numshadowmeshtriangles * 3, numshadowmeshtriangles, NULL, NULL, NULL, false, false, true);
3753 for (j = 0, surface = mod->data_surfaces;j < mod->num_surfaces;j++, surface++)
3754 if (surface->num_triangles > 0)
3755 Mod_ShadowMesh_AddMesh(mod->mempool, mod->brush.shadowmesh, NULL, NULL, NULL, mod->surfmesh.data_vertex3f, NULL, NULL, NULL, NULL, surface->num_triangles, (mod->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
3756 mod->brush.shadowmesh = Mod_ShadowMesh_Finish(mod->mempool, mod->brush.shadowmesh, false, r_enableshadowvolumes.integer != 0, false);
3757 if (mod->brush.shadowmesh && mod->brush.shadowmesh->neighbor3i)
3758 Mod_BuildTriangleNeighbors(mod->brush.shadowmesh->neighbor3i, mod->brush.shadowmesh->element3i, mod->brush.shadowmesh->numtriangles);
3760 return numshadowmeshtriangles;
3763 void Mod_CollisionBIH_TraceLineAgainstSurfaces(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask);
3765 void Mod_Q1BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
3768 sizebuf_t lumpsb[HEADER_LUMPS];
3770 float dist, modelyawradius, modelradius;
3771 msurface_t *surface;
3772 hullinfo_t hullinfo;
3773 int totalstylesurfaces, totalstyles, stylecounts[256], remapstyles[256];
3774 model_brush_lightstyleinfo_t styleinfo[256];
3775 unsigned char *datapointer;
3778 MSG_InitReadBuffer(&sb, (unsigned char *)buffer, (unsigned char *)bufferend - (unsigned char *)buffer);
3780 mod->type = mod_brushq1;
3782 mod->brush.ishlbsp = false;
3783 mod->brush.isbsp2rmqe = false;
3784 mod->brush.isbsp2 = false;
3785 mod->brush.isq2bsp = false;
3786 mod->brush.isq3bsp = false;
3787 mod->brush.skymasking = true;
3788 i = MSG_ReadLittleLong(&sb);
3792 mod->modeldatatypestring = "Q1BSP";
3795 mod->brush.ishlbsp = true;
3796 mod->modeldatatypestring = "HLBSP";
3798 case ('2' + 'P' * 256 + 'S' * 65536 + 'B' * 16777216):
3799 mod->brush.isbsp2 = true;
3800 mod->brush.isbsp2rmqe = true; // like bsp2 except leaf/node bounds are 16bit (unexpanded)
3801 mod->modeldatatypestring = "Q1BSP2rmqe";
3803 case ('B' + 'S' * 256 + 'P' * 65536 + '2' * 16777216):
3804 mod->brush.isbsp2 = true;
3805 mod->modeldatatypestring = "Q1BSP2";
3808 mod->modeldatatypestring = "Unknown BSP";
3809 Host_Error("Mod_Q1BSP_Load: %s has wrong version number %i: supported versions are 29 (Quake), 30 (Half-Life), \"BSP2\" or \"2PSB\" (rmqe)", mod->name, i);
3813 // fill in hull info
3814 VectorClear (hullinfo.hullsizes[0][0]);
3815 VectorClear (hullinfo.hullsizes[0][1]);
3816 if (mod->brush.ishlbsp)
3818 hullinfo.filehulls = 4;
3819 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -36);
3820 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 36);
3821 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -32);
3822 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 32);
3823 VectorSet (hullinfo.hullsizes[3][0], -16, -16, -18);
3824 VectorSet (hullinfo.hullsizes[3][1], 16, 16, 18);
3828 hullinfo.filehulls = 4;
3829 VectorSet (hullinfo.hullsizes[1][0], -16, -16, -24);
3830 VectorSet (hullinfo.hullsizes[1][1], 16, 16, 32);
3831 VectorSet (hullinfo.hullsizes[2][0], -32, -32, -24);
3832 VectorSet (hullinfo.hullsizes[2][1], 32, 32, 64);
3836 for (i = 0; i < HEADER_LUMPS; i++)
3838 int offset = MSG_ReadLittleLong(&sb);
3839 int size = MSG_ReadLittleLong(&sb);
3840 if (offset < 0 || offset + size > sb.cursize)
3841 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);
3842 MSG_InitReadBuffer(&lumpsb[i], sb.data + offset, size);
3845 mod->soundfromcenter = true;
3846 mod->TraceBox = Mod_Q1BSP_TraceBox;
3847 mod->TraceLine = Mod_Q1BSP_TraceLine;
3848 mod->TracePoint = Mod_Q1BSP_TracePoint;
3849 mod->PointSuperContents = Mod_Q1BSP_PointSuperContents;
3850 mod->TraceLineAgainstSurfaces = Mod_Q1BSP_TraceLineAgainstSurfaces;
3851 mod->brush.TraceLineOfSight = Mod_Q1BSP_TraceLineOfSight;
3852 mod->brush.SuperContentsFromNativeContents = Mod_Q1BSP_SuperContentsFromNativeContents;
3853 mod->brush.NativeContentsFromSuperContents = Mod_Q1BSP_NativeContentsFromSuperContents;
3854 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
3855 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
3856 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
3857 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
3858 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
3859 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
3860 mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
3861 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
3862 mod->brush.AmbientSoundLevelsForPoint = Mod_Q1BSP_AmbientSoundLevelsForPoint;
3863 mod->brush.RoundUpToHullSize = Mod_Q1BSP_RoundUpToHullSize;
3864 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
3865 mod->Draw = R_Q1BSP_Draw;
3866 mod->DrawDepth = R_Q1BSP_DrawDepth;
3867 mod->DrawDebug = R_Q1BSP_DrawDebug;
3868 mod->DrawPrepass = R_Q1BSP_DrawPrepass;
3869 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
3870 mod->CompileShadowMap = R_Q1BSP_CompileShadowMap;
3871 mod->DrawShadowMap = R_Q1BSP_DrawShadowMap;
3872 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
3873 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
3874 mod->DrawLight = R_Q1BSP_DrawLight;
3878 mod->brush.qw_md4sum = 0;
3879 mod->brush.qw_md4sum2 = 0;
3880 for (i = 0;i < HEADER_LUMPS;i++)
3883 if (i == LUMP_ENTITIES)
3885 temp = Com_BlockChecksum(lumpsb[i].data, lumpsb[i].cursize);
3886 mod->brush.qw_md4sum ^= LittleLong(temp);
3887 if (i == LUMP_VISIBILITY || i == LUMP_LEAFS || i == LUMP_NODES)
3889 mod->brush.qw_md4sum2 ^= LittleLong(temp);
3892 Mod_Q1BSP_LoadEntities(&lumpsb[LUMP_ENTITIES]);
3893 Mod_Q1BSP_LoadVertexes(&lumpsb[LUMP_VERTEXES]);
3894 Mod_Q1BSP_LoadEdges(&lumpsb[LUMP_EDGES]);
3895 Mod_Q1BSP_LoadSurfedges(&lumpsb[LUMP_SURFEDGES]);
3896 Mod_Q1BSP_LoadTextures(&lumpsb[LUMP_TEXTURES]);
3897 Mod_Q1BSP_LoadLighting(&lumpsb[LUMP_LIGHTING]);
3898 Mod_Q1BSP_LoadPlanes(&lumpsb[LUMP_PLANES]);
3899 Mod_Q1BSP_LoadTexinfo(&lumpsb[LUMP_TEXINFO]);
3900 Mod_Q1BSP_LoadFaces(&lumpsb[LUMP_FACES]);
3901 Mod_Q1BSP_LoadLeaffaces(&lumpsb[LUMP_MARKSURFACES]);
3902 Mod_Q1BSP_LoadVisibility(&lumpsb[LUMP_VISIBILITY]);
3903 // load submodels before leafs because they contain the number of vis leafs
3904 Mod_Q1BSP_LoadSubmodels(&lumpsb[LUMP_MODELS], &hullinfo);
3905 Mod_Q1BSP_LoadLeafs(&lumpsb[LUMP_LEAFS]);
3906 Mod_Q1BSP_LoadNodes(&lumpsb[LUMP_NODES]);
3907 Mod_Q1BSP_LoadClipnodes(&lumpsb[LUMP_CLIPNODES], &hullinfo);
3909 for (i = 0; i < HEADER_LUMPS; i++)
3910 if (lumpsb[i].readcount != lumpsb[i].cursize && i != LUMP_TEXTURES && i != LUMP_LIGHTING)
3911 Host_Error("Lump %i incorrectly loaded (readcount %i, size %i)\n", i, lumpsb[i].readcount, lumpsb[i].cursize);
3913 // check if the map supports transparent water rendering
3914 loadmodel->brush.supportwateralpha = Mod_Q1BSP_CheckWaterAlphaSupport();
3916 // we don't need the compressed pvs data anymore
3917 if (mod->brushq1.data_compressedpvs)
3918 Mem_Free(mod->brushq1.data_compressedpvs);
3919 mod->brushq1.data_compressedpvs = NULL;
3920 mod->brushq1.num_compressedpvs = 0;
3922 Mod_Q1BSP_MakeHull0();
3923 if (mod_bsp_portalize.integer)
3924 Mod_Q1BSP_MakePortals();
3926 mod->numframes = 2; // regular and alternate animation
3929 // make a single combined shadow mesh to allow optimized shadow volume creation
3930 Mod_Q1BSP_CreateShadowMesh(loadmodel);
3932 if (loadmodel->brush.numsubmodels)
3933 loadmodel->brush.submodels = (dp_model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
3935 // LordHavoc: to clear the fog around the original quake submodel code, I
3937 // first of all, some background info on the submodels:
3938 // model 0 is the map model (the world, named maps/e1m1.bsp for example)
3939 // model 1 and higher are submodels (doors and the like, named *1, *2, etc)
3940 // now the weird for loop itself:
3941 // the loop functions in an odd way, on each iteration it sets up the
3942 // current 'mod' model (which despite the confusing code IS the model of
3943 // the number i), at the end of the loop it duplicates the model to become
3944 // the next submodel, and loops back to set up the new submodel.
3946 // LordHavoc: now the explanation of my sane way (which works identically):
3947 // set up the world model, then on each submodel copy from the world model
3948 // and set up the submodel with the respective model info.
3949 totalstylesurfaces = 0;
3951 for (i = 0;i < mod->brush.numsubmodels;i++)
3953 memset(stylecounts, 0, sizeof(stylecounts));
3954 for (k = 0;k < mod->brushq1.submodels[i].numfaces;k++)
3956 surface = mod->data_surfaces + mod->brushq1.submodels[i].firstface + k;
3957 for (j = 0;j < MAXLIGHTMAPS;j++)
3958 stylecounts[surface->lightmapinfo->styles[j]]++;
3960 for (k = 0;k < 255;k++)
3964 totalstylesurfaces += stylecounts[k];
3967 datapointer = (unsigned char *)Mem_Alloc(mod->mempool, mod->num_surfaces * sizeof(int) + totalstyles * sizeof(model_brush_lightstyleinfo_t) + totalstylesurfaces * sizeof(int *));
3968 for (i = 0;i < mod->brush.numsubmodels;i++)
3970 // LordHavoc: this code was originally at the end of this loop, but
3971 // has been transformed to something more readable at the start here.
3976 // duplicate the basic information
3977 dpsnprintf(name, sizeof(name), "*%i", i);
3978 mod = Mod_FindName(name, loadmodel->name);
3979 // copy the base model to this one
3981 // rename the clone back to its proper name
3982 strlcpy(mod->name, name, sizeof(mod->name));
3983 mod->brush.parentmodel = loadmodel;
3984 // textures and memory belong to the main model
3985 mod->texturepool = NULL;
3986 mod->mempool = NULL;
3987 mod->brush.GetPVS = NULL;
3988 mod->brush.FatPVS = NULL;
3989 mod->brush.BoxTouchingPVS = NULL;
3990 mod->brush.BoxTouchingLeafPVS = NULL;
3991 mod->brush.BoxTouchingVisibleLeafs = NULL;
3992 mod->brush.FindBoxClusters = NULL;
3993 mod->brush.LightPoint = NULL;
3994 mod->brush.AmbientSoundLevelsForPoint = NULL;
3997 mod->brush.submodel = i;
3999 if (loadmodel->brush.submodels)
4000 loadmodel->brush.submodels[i] = mod;
4002 bm = &mod->brushq1.submodels[i];
4004 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
4005 for (j=1 ; j<MAX_MAP_HULLS ; j++)
4007 mod->brushq1.hulls[j].firstclipnode = bm->headnode[j];
4008 mod->brushq1.hulls[j].lastclipnode = mod->brushq1.numclipnodes - 1;
4011 mod->firstmodelsurface = bm->firstface;
4012 mod->nummodelsurfaces = bm->numfaces;
4014 // set node/leaf parents for this submodel
4015 Mod_Q1BSP_LoadNodes_RecursiveSetParent(mod->brush.data_nodes + mod->brushq1.hulls[0].firstclipnode, NULL);
4017 // make the model surface list (used by shadowing/lighting)
4018 mod->sortedmodelsurfaces = (int *)datapointer;datapointer += mod->nummodelsurfaces * sizeof(int);
4019 Mod_MakeSortedSurfaces(mod);
4021 // copy the submodel bounds, then enlarge the yaw and rotated bounds according to radius
4022 // (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)
4023 VectorCopy(bm->mins, mod->normalmins);
4024 VectorCopy(bm->maxs, mod->normalmaxs);
4025 dist = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
4026 modelyawradius = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
4027 modelyawradius = dist*dist+modelyawradius*modelyawradius;
4028 modelradius = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
4029 modelradius = modelyawradius + modelradius * modelradius;
4030 modelyawradius = sqrt(modelyawradius);
4031 modelradius = sqrt(modelradius);
4032 mod->yawmins[0] = mod->yawmins[1] = -modelyawradius;
4033 mod->yawmins[2] = mod->normalmins[2];
4034 mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius;
4035 mod->yawmaxs[2] = mod->normalmaxs[2];
4036 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
4037 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
4038 mod->radius = modelradius;
4039 mod->radius2 = modelradius * modelradius;
4041 // this gets altered below if sky or water is used
4042 mod->DrawSky = NULL;
4043 mod->DrawAddWaterPlanes = NULL;
4045 // scan surfaces for sky and water and flag the submodel as possessing these features or not
4046 // build lightstyle lists for quick marking of dirty lightmaps when lightstyles flicker
4047 if (mod->nummodelsurfaces)
4049 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
4050 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
4052 if (j < mod->nummodelsurfaces)
4053 mod->DrawSky = R_Q1BSP_DrawSky;
4055 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
4056 if (surface->texture->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
4058 if (j < mod->nummodelsurfaces)
4059 mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
4061 // build lightstyle update chains
4062 // (used to rapidly mark lightmapupdateflags on many surfaces
4063 // when d_lightstylevalue changes)
4064 memset(stylecounts, 0, sizeof(stylecounts));
4065 for (k = 0;k < mod->nummodelsurfaces;k++)
4067 surface = mod->data_surfaces + mod->firstmodelsurface + k;
4068 for (j = 0;j < MAXLIGHTMAPS;j++)
4069 stylecounts[surface->lightmapinfo->styles[j]]++;
4071 mod->brushq1.num_lightstyles = 0;
4072 for (k = 0;k < 255;k++)
4076 styleinfo[mod->brushq1.num_lightstyles].style = k;
4077 styleinfo[mod->brushq1.num_lightstyles].value = 0;
4078 styleinfo[mod->brushq1.num_lightstyles].numsurfaces = 0;
4079 styleinfo[mod->brushq1.num_lightstyles].surfacelist = (int *)datapointer;datapointer += stylecounts[k] * sizeof(int);
4080 remapstyles[k] = mod->brushq1.num_lightstyles;
4081 mod->brushq1.num_lightstyles++;
4084 for (k = 0;k < mod->nummodelsurfaces;k++)
4086 surface = mod->data_surfaces + mod->firstmodelsurface + k;
4087 for (j = 0;j < MAXLIGHTMAPS;j++)
4089 if (surface->lightmapinfo->styles[j] != 255)
4091 int r = remapstyles[surface->lightmapinfo->styles[j]];
4092 styleinfo[r].surfacelist[styleinfo[r].numsurfaces++] = mod->firstmodelsurface + k;
4096 mod->brushq1.data_lightstyleinfo = (model_brush_lightstyleinfo_t *)datapointer;datapointer += mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t);
4097 memcpy(mod->brushq1.data_lightstyleinfo, styleinfo, mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t));
4101 // LordHavoc: empty submodel(lacrima.bsp has such a glitch)
4102 Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
4104 //mod->brushq1.num_visleafs = bm->visleafs;
4106 // build a Bounding Interval Hierarchy for culling triangles in light rendering
4107 Mod_MakeCollisionBIH(mod, true, &mod->render_bih);
4109 if (mod_q1bsp_polygoncollisions.integer)
4111 mod->collision_bih = mod->render_bih;
4112 // point traces and contents checks still use the bsp tree
4113 mod->TraceLine = Mod_CollisionBIH_TraceLine;
4114 mod->TraceBox = Mod_CollisionBIH_TraceBox;
4115 mod->TraceBrush = Mod_CollisionBIH_TraceBrush;
4116 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLineAgainstSurfaces;
4119 // generate VBOs and other shared data before cloning submodels
4123 Mod_Q1BSP_LoadMapBrushes();
4124 //Mod_Q1BSP_ProcessLightList();
4128 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);
4131 int Mod_Q2BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativecontents)
4133 int supercontents = 0;
4134 if (nativecontents & CONTENTSQ2_SOLID)
4135 supercontents |= SUPERCONTENTS_SOLID;
4136 if (nativecontents & CONTENTSQ2_WATER)
4137 supercontents |= SUPERCONTENTS_WATER;
4138 if (nativecontents & CONTENTSQ2_SLIME)
4139 supercontents |= SUPERCONTENTS_SLIME;
4140 if (nativecontents & CONTENTSQ2_LAVA)
4141 supercontents |= SUPERCONTENTS_LAVA;
4142 if (nativecontents & CONTENTSQ2_MONSTER)
4143 supercontents |= SUPERCONTENTS_BODY;
4144 if (nativecontents & CONTENTSQ2_DEADMONSTER)
4145 supercontents |= SUPERCONTENTS_CORPSE;
4146 if (nativecontents & CONTENTSQ2_PLAYERCLIP)
4147 supercontents |= SUPERCONTENTS_PLAYERCLIP;
4148 if (nativecontents & CONTENTSQ2_MONSTERCLIP)
4149 supercontents |= SUPERCONTENTS_MONSTERCLIP;
4150 if (!(nativecontents & CONTENTSQ2_TRANSLUCENT))
4151 supercontents |= SUPERCONTENTS_OPAQUE;
4152 return supercontents;
4155 int Mod_Q2BSP_NativeContentsFromSuperContents(dp_model_t *model, int supercontents)
4157 int nativecontents = 0;
4158 if (supercontents & SUPERCONTENTS_SOLID)
4159 nativecontents |= CONTENTSQ2_SOLID;
4160 if (supercontents & SUPERCONTENTS_WATER)
4161 nativecontents |= CONTENTSQ2_WATER;
4162 if (supercontents & SUPERCONTENTS_SLIME)
4163 nativecontents |= CONTENTSQ2_SLIME;
4164 if (supercontents & SUPERCONTENTS_LAVA)
4165 nativecontents |= CONTENTSQ2_LAVA;
4166 if (supercontents & SUPERCONTENTS_BODY)
4167 nativecontents |= CONTENTSQ2_MONSTER;
4168 if (supercontents & SUPERCONTENTS_CORPSE)
4169 nativecontents |= CONTENTSQ2_DEADMONSTER;
4170 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
4171 nativecontents |= CONTENTSQ2_PLAYERCLIP;
4172 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
4173 nativecontents |= CONTENTSQ2_MONSTERCLIP;
4174 if (!(supercontents & SUPERCONTENTS_OPAQUE))
4175 nativecontents |= CONTENTSQ2_TRANSLUCENT;
4176 return nativecontents;
4179 static void Mod_Q2BSP_LoadVisibility(sizebuf_t *sb)
4182 loadmodel->brushq1.num_compressedpvs = 0;
4183 loadmodel->brushq1.data_compressedpvs = NULL;
4184 loadmodel->brush.num_pvsclusters = 0;
4185 loadmodel->brush.num_pvsclusterbytes = 0;
4186 loadmodel->brush.data_pvsclusters = NULL;
4191 count = MSG_ReadLittleLong(sb);
4192 loadmodel->brush.num_pvsclusters = count;
4193 loadmodel->brush.num_pvsclusterbytes = (count+7)>>3;
4194 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, count*loadmodel->brush.num_pvsclusterbytes);
4195 for (i = 0;i < count;i++)
4197 int pvsofs = MSG_ReadLittleLong(sb);
4198 /*int phsofs = */MSG_ReadLittleLong(sb);
4199 // decompress the vis data for this cluster
4200 // (note this accesses the underlying data store of sb, which is kind of evil)
4201 Mod_Q1BSP_DecompressVis(sb->data + pvsofs, sb->data + sb->cursize, loadmodel->brush.data_pvsclusters + i * loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.data_pvsclusters + (i+1) * loadmodel->brush.num_pvsclusterbytes);
4203 // hush the loading error check later - we had to do random access on this lump, so we didn't read to the end
4204 sb->readcount = sb->cursize;
4207 static void Mod_Q2BSP_LoadNodes(sizebuf_t *sb)
4209 int i, j, count, p, child[2];
4211 int structsize = 28;
4213 if (sb->cursize % structsize)
4214 Host_Error("Mod_Q2BSP_LoadNodes: funny lump size in %s",loadmodel->name);
4215 count = sb->cursize / structsize;
4217 Host_Error("Mod_Q2BSP_LoadNodes: missing BSP tree in %s",loadmodel->name);
4218 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
4220 loadmodel->brush.data_nodes = out;
4221 loadmodel->brush.num_nodes = count;
4223 for ( i=0 ; i<count ; i++, out++)
4225 p = MSG_ReadLittleLong(sb);
4226 out->plane = loadmodel->brush.data_planes + p;
4227 child[0] = MSG_ReadLittleLong(sb);
4228 child[1] = MSG_ReadLittleLong(sb);
4229 out->mins[0] = MSG_ReadLittleShort(sb);
4230 out->mins[1] = MSG_ReadLittleShort(sb);
4231 out->mins[2] = MSG_ReadLittleShort(sb);
4232 out->maxs[0] = MSG_ReadLittleShort(sb);
4233 out->maxs[1] = MSG_ReadLittleShort(sb);
4234 out->maxs[2] = MSG_ReadLittleShort(sb);
4235 out->firstsurface = (unsigned short)MSG_ReadLittleShort(sb);
4236 out->numsurfaces = (unsigned short)MSG_ReadLittleShort(sb);
4237 if (out->firstsurface + out->numsurfaces > (unsigned int)loadmodel->num_surfaces)
4239 Con_Printf("Mod_Q2BSP_LoadNodes: invalid surface index range %i+%i (file has only %i surfaces)\n", out->firstsurface, out->numsurfaces, loadmodel->num_surfaces);
4240 out->firstsurface = 0;
4241 out->numsurfaces = 0;
4243 for (j=0 ; j<2 ; j++)
4248 if (p < loadmodel->brush.num_nodes)
4249 out->children[j] = loadmodel->brush.data_nodes + p;
4252 Con_Printf("Mod_Q2BSP_LoadNodes: invalid node index %i (file has only %i nodes)\n", p, loadmodel->brush.num_nodes);
4253 // map it to the solid leaf
4254 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
4259 // get leaf index as a positive value starting at 0 (-1 becomes 0, -2 becomes 1, etc)
4261 if (p < loadmodel->brush.num_leafs)
4262 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + p);
4265 Con_Printf("Mod_Q2BSP_LoadNodes: invalid leaf index %i (file has only %i leafs)\n", p, loadmodel->brush.num_leafs);
4266 // map it to the solid leaf
4267 out->children[j] = (mnode_t *)loadmodel->brush.data_leafs;
4273 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL); // sets nodes and leafs
4276 static void Mod_Q2BSP_LoadTexinfo(sizebuf_t *sb)
4279 int i, j, k, l, count;
4280 int structsize = 76;
4281 int maxtextures = 1024; // hardcoded limit of quake2 engine, so we may as well use it as an upper bound
4282 char filename[MAX_QPATH];
4284 if (sb->cursize % structsize)
4285 Host_Error("Mod_Q2BSP_LoadTexinfo: funny lump size in %s",loadmodel->name);
4286 count = sb->cursize / structsize;
4287 out = (mtexinfo_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4288 loadmodel->brushq1.texinfo = out;
4289 loadmodel->brushq1.numtexinfo = count;
4290 loadmodel->num_texturesperskin = 0;
4291 loadmodel->data_textures = (texture_t*)Mem_Alloc(loadmodel->mempool, maxtextures * sizeof(texture_t));
4293 for (i = 0;i < count;i++, out++)
4295 for (k = 0;k < 2;k++)
4296 for (j = 0;j < 4;j++)
4297 out->vecs[k][j] = MSG_ReadLittleFloat(sb);
4299 out->q2flags = MSG_ReadLittleLong(sb);
4300 out->q2value = MSG_ReadLittleLong(sb);
4301 MSG_ReadBytes(sb, 32, (unsigned char*)out->q2texture);
4302 out->q2texture[31] = 0; // make absolutely sure it is terminated
4303 out->q2nexttexinfo = MSG_ReadLittleLong(sb);
4305 // find an existing match for the texture if possible
4306 dpsnprintf(filename, sizeof(filename), "textures/%s.wal", out->q2texture);
4307 for (j = 0;j < loadmodel->num_texturesperskin;j++)
4308 if (!strcmp(filename, loadmodel->data_textures[j].name) && out->q2flags == loadmodel->data_textures[j].q2flags)
4310 // if we don't find the texture, store the new texture
4311 if (j == loadmodel->num_texturesperskin)
4313 if (loadmodel->num_texturesperskin < maxtextures)
4315 texture_t *tx = loadmodel->data_textures + j;
4316 int q2flags = out->q2flags;
4317 unsigned char *walfile = NULL;
4318 fs_offset_t walfilesize = 0;
4319 Mod_LoadTextureFromQ3Shader(tx, filename, true, true, TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS);
4320 // now read the .wal file to get metadata (even if a .tga was overriding it, we still need the wal data)
4321 walfile = FS_LoadFile(filename, tempmempool, true, &walfilesize);
4325 char q2animname32c[32];
4326 LoadWAL_GetMetadata(walfile, (int)walfilesize, &w, &h, &q2flags, &tx->q2value, &tx->q2contents, q2animname32c);
4329 tx->q2flags = q2flags;
4332 // also modify the texture to have the correct contents and such based on flags
4333 // note that we create multiple texture_t structures if q2flags differs
4334 if (q2flags & Q2SURF_LIGHT)
4336 // doesn't mean anything to us
4338 if (q2flags & Q2SURF_SLICK)
4340 // would be nice to support...
4342 if (q2flags & Q2SURF_SKY)
4344 // sky is a rather specific thing
4345 q2flags &= ~Q2SURF_NODRAW; // quake2 had a slightly different meaning than we have in mind here...
4346 tx->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
4347 tx->supercontents = SUPERCONTENTS_SKY | SUPERCONTENTS_NODROP | SUPERCONTENTS_OPAQUE;
4348 tx->surfaceflags = Q3SURFACEFLAG_SKY | Q3SURFACEFLAG_NOIMPACT | Q3SURFACEFLAG_NOMARKS | Q3SURFACEFLAG_NODLIGHT | Q3SURFACEFLAG_NOLIGHTMAP;
4350 if (q2flags & Q2SURF_WARP)
4352 // we use a scroll instead of a warp
4353 tx->basematerialflags |= MATERIALFLAG_WATERSCROLL | MATERIALFLAG_FULLBRIGHT;
4354 // if it's also transparent, we can enable the WATERSHADER
4355 // but we do not set the WATERALPHA flag because we don't
4356 // want to honor r_wateralpha in q2bsp
4357 // (it would go against the artistic intent)
4358 if (q2flags & (Q2SURF_TRANS33 | Q2SURF_TRANS66))
4359 tx->basematerialflags |= MATERIALFLAG_WATERSHADER;
4361 if (q2flags & Q2SURF_TRANS33)
4363 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED;
4364 tx->basealpha = 0.3333f;
4365 tx->supercontents &= ~SUPERCONTENTS_OPAQUE;
4366 if (tx->q2contents & Q2CONTENTS_SOLID)
4367 tx->q2contents = (tx->q2contents & ~Q2CONTENTS_SOLID) | Q2CONTENTS_WINDOW;
4369 if (q2flags & Q2SURF_TRANS66)
4371 tx->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED;
4372 tx->basealpha = 0.6667f;
4373 tx->supercontents &= ~SUPERCONTENTS_OPAQUE;
4374 if (tx->q2contents & Q2CONTENTS_SOLID)
4375 tx->q2contents = (tx->q2contents & ~Q2CONTENTS_SOLID) | Q2CONTENTS_WINDOW;
4377 if (q2flags & Q2SURF_FLOWING)
4379 tx->tcmods[0].tcmod = Q3TCMOD_SCROLL;
4380 tx->tcmods[0].parms[0] = -1.6f;
4381 tx->tcmods[0].parms[1] = 0.0f;
4383 if (q2flags & Q2SURF_NODRAW)
4385 tx->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
4387 if (tx->q2contents & (Q2CONTENTS_TRANSLUCENT | Q2CONTENTS_MONSTERCLIP | Q2CONTENTS_PLAYERCLIP))
4388 tx->q2contents |= Q2CONTENTS_DETAIL;
4389 if (!(tx->q2contents & (Q2CONTENTS_SOLID | Q2CONTENTS_WINDOW | Q2CONTENTS_AUX | Q2CONTENTS_LAVA | Q2CONTENTS_SLIME | Q2CONTENTS_WATER | Q2CONTENTS_MIST | Q2CONTENTS_PLAYERCLIP | Q2CONTENTS_MONSTERCLIP | Q2CONTENTS_MIST)))
4390 tx->q2contents |= Q2CONTENTS_SOLID;
4391 if (tx->q2flags & (Q2SURF_HINT | Q2SURF_SKIP))
4393 tx->supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(loadmodel, tx->q2contents);
4394 // set the current values to the base values
4395 tx->currentframe = tx;
4396 tx->currentskinframe = tx->skinframes[0];
4397 tx->currentmaterialflags = tx->basematerialflags;
4398 loadmodel->num_texturesperskin++;
4399 loadmodel->num_textures = loadmodel->num_texturesperskin;
4403 Con_Printf("Mod_Q2BSP_LoadTexinfo: max textures reached (%i)\n", maxtextures);
4404 j = 0; // use first texture and give up
4407 // store the index we found for this texture
4408 out->textureindex = j;
4411 // realloc the textures array now that we know how many we actually need
4412 loadmodel->data_textures = (texture_t*)Mem_Realloc(loadmodel->mempool, loadmodel->data_textures, loadmodel->num_texturesperskin * sizeof(texture_t));
4414 // now assemble the texture chains
4415 // if we encounter the textures out of order, the later ones won't mark the earlier ones in a sequence, so the earlier
4416 for (i = 0, out = loadmodel->brushq1.texinfo;i < count;i++, out++)
4419 texture_t *t = loadmodel->data_textures + out->textureindex;
4421 // if this is not animated, skip it
4422 // if this is already processed, skip it (part of an existing sequence)
4423 if (out->q2nexttexinfo == 0 || t->animated)
4426 // store the array of frames to use
4427 t->animated = 2; // q2bsp animation
4428 t->anim_total[0] = 0;
4429 t->anim_total[1] = 0;
4430 // gather up to 10 frames (we don't support more)
4431 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)
4433 // detect looping and stop there
4434 if (t->anim_total[0] && loadmodel->brushq1.texinfo[j].textureindex == out->textureindex)
4436 t->anim_frames[0][t->anim_total[0]++] = &loadmodel->data_textures[loadmodel->brushq1.texinfo[j].textureindex];
4438 // we could look for the +a sequence here if this is the +0 sequence,
4439 // but it seems that quake2 did not implement that (even though the
4440 // files exist in the baseq2 content)
4442 // write the frame sequence to all the textures involved (just like
4443 // in the q1bsp loader)
4445 // note that this can overwrite the rest of the sequence - so if the
4446 // start of a sequence is found later than the other parts of the
4447 // sequence, it will go back and rewrite them correctly.
4448 for (k = 0;k < t->anim_total[0];k++)
4450 texture_t *txk = t->anim_frames[0][k];
4451 txk->animated = t->animated;
4452 txk->anim_total[0] = t->anim_total[0];
4453 for (l = 0;l < t->anim_total[0];l++)
4454 txk->anim_frames[0][l] = t->anim_frames[0][l];
4459 static void Mod_Q2BSP_LoadLighting(sizebuf_t *sb)
4461 // LordHavoc: this fits exactly the same format that we use in .lit files
4462 loadmodel->brushq1.lightdata = (unsigned char *)Mem_Alloc(loadmodel->mempool, sb->cursize);
4463 MSG_ReadBytes(sb, sb->cursize, loadmodel->brushq1.lightdata);
4466 static void Mod_Q2BSP_LoadLeafs(sizebuf_t *sb)
4469 int i, j, count, firstmarksurface, nummarksurfaces, firstmarkbrush, nummarkbrushes;
4470 int structsize = 28;
4472 if (sb->cursize % structsize)
4473 Host_Error("Mod_Q2BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
4474 count = sb->cursize / structsize;
4475 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
4477 loadmodel->brush.data_leafs = out;
4478 loadmodel->brush.num_leafs = count;
4480 // FIXME: this function could really benefit from some error checking
4481 for ( i=0 ; i<count ; i++, out++)
4483 out->contents = MSG_ReadLittleLong(sb);
4484 out->clusterindex = MSG_ReadLittleShort(sb);
4485 out->areaindex = MSG_ReadLittleShort(sb);
4486 out->mins[0] = MSG_ReadLittleShort(sb);
4487 out->mins[1] = MSG_ReadLittleShort(sb);
4488 out->mins[2] = MSG_ReadLittleShort(sb);
4489 out->maxs[0] = MSG_ReadLittleShort(sb);
4490 out->maxs[1] = MSG_ReadLittleShort(sb);
4491 out->maxs[2] = MSG_ReadLittleShort(sb);
4493 firstmarksurface = (unsigned short)MSG_ReadLittleShort(sb);
4494 nummarksurfaces = (unsigned short)MSG_ReadLittleShort(sb);
4495 firstmarkbrush = (unsigned short)MSG_ReadLittleShort(sb);
4496 nummarkbrushes = (unsigned short)MSG_ReadLittleShort(sb);
4498 for (j = 0;j < 4;j++)
4499 out->ambient_sound_level[j] = 0;
4501 if (out->clusterindex >= loadmodel->brush.num_pvsclusters)
4503 Con_Print("Mod_Q2BSP_LoadLeafs: invalid clusterindex\n");
4504 out->clusterindex = -1;
4507 if (firstmarksurface >= 0 && firstmarksurface + nummarksurfaces <= loadmodel->brush.num_leafsurfaces)
4509 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + firstmarksurface;
4510 out->numleafsurfaces = nummarksurfaces;
4514 Con_Printf("Mod_Q2BSP_LoadLeafs: invalid leafsurface range %i:%i outside range %i:%i\n", firstmarksurface, firstmarksurface+nummarksurfaces, 0, loadmodel->brush.num_leafsurfaces);
4515 out->firstleafsurface = NULL;
4516 out->numleafsurfaces = 0;
4519 if (firstmarkbrush >= 0 && firstmarkbrush + nummarkbrushes <= loadmodel->brush.num_leafbrushes)
4521 out->firstleafbrush = loadmodel->brush.data_leafbrushes + firstmarkbrush;
4522 out->numleafbrushes = nummarkbrushes;
4526 Con_Printf("Mod_Q2BSP_LoadLeafs: invalid leafbrush range %i:%i outside range %i:%i\n", firstmarkbrush, firstmarkbrush+nummarkbrushes, 0, loadmodel->brush.num_leafbrushes);
4527 out->firstleafbrush = NULL;
4528 out->numleafbrushes = 0;
4533 static void Mod_Q2BSP_LoadLeafBrushes(sizebuf_t *sb)
4538 if (sb->cursize % structsize)
4539 Host_Error("Mod_Q2BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
4540 loadmodel->brush.num_leafbrushes = sb->cursize / structsize;
4541 loadmodel->brush.data_leafbrushes = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafbrushes * sizeof(int));
4543 for (i = 0;i < loadmodel->brush.num_leafbrushes;i++)
4545 j = (unsigned short) MSG_ReadLittleShort(sb);
4546 if (j >= loadmodel->brush.num_brushes)
4547 Host_Error("Mod_Q1BSP_LoadLeafBrushes: bad brush number");
4548 loadmodel->brush.data_leafbrushes[i] = j;
4552 static void Mod_Q2BSP_LoadBrushSides(sizebuf_t *sb)
4554 q3mbrushside_t *out;
4558 if (sb->cursize % structsize)
4559 Host_Error("Mod_Q2BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
4560 count = sb->cursize / structsize;
4561 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4563 loadmodel->brush.data_brushsides = out;
4564 loadmodel->brush.num_brushsides = count;
4566 for (i = 0;i < count;i++, out++)
4568 n = (unsigned short)MSG_ReadLittleShort(sb);
4569 if (n < 0 || n >= loadmodel->brush.num_planes)
4570 Host_Error("Mod_Q2BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
4571 out->plane = loadmodel->brush.data_planes + n;
4572 n = MSG_ReadLittleShort(sb);
4575 if (n >= loadmodel->brushq1.numtexinfo)
4576 Host_Error("Mod_Q2BSP_LoadBrushSides: invalid texinfo index %i (%i texinfos)", n, loadmodel->brushq1.numtexinfo);
4577 out->texture = loadmodel->data_textures + loadmodel->brushq1.texinfo[n].textureindex;
4581 //Con_Printf("Mod_Q2BSP_LoadBrushSides: brushside %i has texinfo index %i < 0, changing to generic texture!\n", i, n);
4582 out->texture = &mod_q1bsp_texture_solid;
4587 static void Mod_Q2BSP_LoadBrushes(sizebuf_t *sb)
4590 int i, j, firstside, numsides, contents, count, maxplanes, q3surfaceflags, supercontents;
4591 colplanef_t *planes;
4592 int structsize = 12;
4594 if (sb->cursize % structsize)
4595 Host_Error("Mod_Q2BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
4596 count = sb->cursize / structsize;
4597 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
4599 loadmodel->brush.data_brushes = out;
4600 loadmodel->brush.num_brushes = count;
4605 for (i = 0;i < count;i++, out++)
4607 firstside = MSG_ReadLittleLong(sb);
4608 numsides = MSG_ReadLittleLong(sb);
4609 contents = MSG_ReadLittleLong(sb);
4610 if (firstside < 0 || firstside + numsides > loadmodel->brush.num_brushsides)
4611 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", firstside, firstside + numsides, loadmodel->brush.num_brushsides);
4613 out->firstbrushside = loadmodel->brush.data_brushsides + firstside;
4614 out->numbrushsides = numsides;
4615 // not really the same... we should store the q2 contents
4616 out->texture = out->firstbrushside->texture;
4617 // convert the contents to our values
4618 supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(loadmodel, contents);
4620 // make a list of mplane_t structs to construct a colbrush from
4621 if (maxplanes < out->numbrushsides)
4623 maxplanes = out->numbrushsides;
4626 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
4629 for (j = 0;j < out->numbrushsides;j++)
4631 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
4632 planes[j].dist = out->firstbrushside[j].plane->dist;
4633 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
4634 planes[j].texture = out->firstbrushside[j].texture;
4635 q3surfaceflags |= planes[j].q3surfaceflags;
4636 // LordHavoc: kind of a mean hack here, but we want the surfaces to have the brush contents
4637 out->firstbrushside[j].texture->supercontents = supercontents;
4639 // make the colbrush from the planes
4640 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents, q3surfaceflags, out->texture, true);
4642 // this whole loop can take a while (e.g. on redstarrepublic4)
4643 CL_KeepaliveMessage(false);
4649 static void Mod_Q2BSP_LoadPOP(sizebuf_t *sb)
4651 // 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)
4652 sb->readcount = sb->cursize;
4655 static void Mod_Q2BSP_LoadAreas(sizebuf_t *sb)
4657 // we currently don't use areas, they represent closable doors as vis blockers
4658 sb->readcount = sb->cursize;
4661 static void Mod_Q2BSP_LoadAreaPortals(sizebuf_t *sb)
4663 // we currently don't use areas, they represent closable doors as vis blockers
4664 sb->readcount = sb->cursize;
4667 static void Mod_Q2BSP_LoadSubmodels(sizebuf_t *sb)
4671 int structsize = 48;
4673 if (sb->cursize % structsize)
4674 Host_Error ("Mod_Q2BSP_LoadSubmodels: funny lump size in %s", loadmodel->name);
4676 count = sb->cursize / structsize;
4677 out = (mmodel_t *)Mem_Alloc (loadmodel->mempool, count*sizeof(*out));
4679 loadmodel->brushq1.submodels = out;
4680 loadmodel->brush.numsubmodels = count;
4682 // this is identical to the q1 submodel structure except for having 1 hull
4683 for (i = 0; i < count; i++, out++)
4685 // spread out the mins / maxs by a pixel
4686 out->mins[0] = MSG_ReadLittleFloat(sb) - 1;
4687 out->mins[1] = MSG_ReadLittleFloat(sb) - 1;
4688 out->mins[2] = MSG_ReadLittleFloat(sb) - 1;
4689 out->maxs[0] = MSG_ReadLittleFloat(sb) + 1;
4690 out->maxs[1] = MSG_ReadLittleFloat(sb) + 1;
4691 out->maxs[2] = MSG_ReadLittleFloat(sb) + 1;
4692 out->origin[0] = MSG_ReadLittleFloat(sb);
4693 out->origin[1] = MSG_ReadLittleFloat(sb);
4694 out->origin[2] = MSG_ReadLittleFloat(sb);
4695 out->headnode[0] = MSG_ReadLittleLong(sb);
4696 out->firstface = MSG_ReadLittleLong(sb);
4697 out->numfaces = MSG_ReadLittleLong(sb);
4701 static void Mod_Q2BSP_FindSubmodelBrushRange_r(dp_model_t *mod, mnode_t *node, int *first, int *last)
4707 Mod_Q2BSP_FindSubmodelBrushRange_r(mod, node->children[0], first, last);
4708 node = node->children[1];
4710 leaf = (mleaf_t*)node;
4711 for (i = 0;i < leaf->numleafbrushes;i++)
4713 int brushnum = leaf->firstleafbrush[i];
4714 if (*first > brushnum)
4716 if (*last < brushnum)
4721 static void Mod_Q2BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
4724 sizebuf_t lumpsb[Q2HEADER_LUMPS];
4726 float dist, modelyawradius, modelradius;
4727 msurface_t *surface;
4728 int totalstylesurfaces, totalstyles, stylecounts[256], remapstyles[256];
4729 model_brush_lightstyleinfo_t styleinfo[256];
4730 unsigned char *datapointer;
4733 MSG_InitReadBuffer(&sb, (unsigned char *)buffer, (unsigned char *)bufferend - (unsigned char *)buffer);
4735 mod->type = mod_brushq2;
4737 mod->brush.ishlbsp = false;
4738 mod->brush.isbsp2rmqe = false;
4739 mod->brush.isbsp2 = false;
4740 mod->brush.isq2bsp = true; // q1bsp loaders mostly work but we need a few tweaks
4741 mod->brush.isq3bsp = false;
4742 mod->brush.skymasking = true;
4743 mod->modeldatatypestring = "Q2BSP";
4745 i = MSG_ReadLittleLong(&sb);
4746 if (i != Q2BSPMAGIC)
4747 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
4749 i = MSG_ReadLittleLong(&sb);
4750 if (i != Q2BSPVERSION)
4751 Host_Error("Mod_Q2BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q2BSPVERSION);
4754 for (i = 0; i < Q2HEADER_LUMPS; i++)
4756 int offset = MSG_ReadLittleLong(&sb);
4757 int size = MSG_ReadLittleLong(&sb);
4758 if (offset < 0 || offset + size > sb.cursize)
4759 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);
4760 MSG_InitReadBuffer(&lumpsb[i], sb.data + offset, size);
4763 mod->soundfromcenter = true;
4764 mod->TracePoint = Mod_CollisionBIH_TracePoint;
4765 mod->TraceLine = Mod_CollisionBIH_TraceLine;
4766 mod->TraceBox = Mod_CollisionBIH_TraceBox;
4767 mod->TraceBrush = Mod_CollisionBIH_TraceBrush;
4768 mod->PointSuperContents = Mod_CollisionBIH_PointSuperContents;
4769 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
4770 mod->brush.TraceLineOfSight = Mod_Q3BSP_TraceLineOfSight;
4771 mod->brush.SuperContentsFromNativeContents = Mod_Q2BSP_SuperContentsFromNativeContents;
4772 mod->brush.NativeContentsFromSuperContents = Mod_Q2BSP_NativeContentsFromSuperContents;
4773 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
4774 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
4775 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
4776 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
4777 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
4778 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
4779 mod->brush.LightPoint = Mod_Q1BSP_LightPoint;
4780 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
4781 mod->brush.AmbientSoundLevelsForPoint = NULL;
4782 mod->brush.RoundUpToHullSize = NULL;
4783 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
4784 mod->Draw = R_Q1BSP_Draw;
4785 mod->DrawDepth = R_Q1BSP_DrawDepth;
4786 mod->DrawDebug = R_Q1BSP_DrawDebug;
4787 mod->DrawPrepass = R_Q1BSP_DrawPrepass;
4788 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
4789 mod->CompileShadowMap = R_Q1BSP_CompileShadowMap;
4790 mod->DrawShadowMap = R_Q1BSP_DrawShadowMap;
4791 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
4792 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
4793 mod->DrawLight = R_Q1BSP_DrawLight;
4797 mod->brush.qw_md4sum = 0;
4798 mod->brush.qw_md4sum2 = 0;
4799 for (i = 0;i < Q2HEADER_LUMPS;i++)
4802 if (i == Q2LUMP_ENTITIES)
4804 temp = Com_BlockChecksum(lumpsb[i].data, lumpsb[i].cursize);
4805 mod->brush.qw_md4sum ^= LittleLong(temp);
4806 if (i == Q2LUMP_VISIBILITY || i == Q2LUMP_LEAFS || i == Q2LUMP_NODES)
4808 mod->brush.qw_md4sum2 ^= LittleLong(temp);
4811 // many of these functions are identical to Q1 loaders, so we use those where possible
4812 Mod_Q1BSP_LoadEntities(&lumpsb[Q2LUMP_ENTITIES]);
4813 Mod_Q1BSP_LoadVertexes(&lumpsb[Q2LUMP_VERTEXES]);
4814 Mod_Q1BSP_LoadEdges(&lumpsb[Q2LUMP_EDGES]);
4815 Mod_Q1BSP_LoadSurfedges(&lumpsb[Q2LUMP_SURFEDGES]);
4816 Mod_Q2BSP_LoadLighting(&lumpsb[Q2LUMP_LIGHTING]);
4817 Mod_Q1BSP_LoadPlanes(&lumpsb[Q2LUMP_PLANES]);
4818 Mod_Q2BSP_LoadTexinfo(&lumpsb[Q2LUMP_TEXINFO]);
4819 Mod_Q2BSP_LoadBrushSides(&lumpsb[Q2LUMP_BRUSHSIDES]);
4820 Mod_Q2BSP_LoadBrushes(&lumpsb[Q2LUMP_BRUSHES]);
4821 Mod_Q1BSP_LoadFaces(&lumpsb[Q2LUMP_FACES]);
4822 Mod_Q1BSP_LoadLeaffaces(&lumpsb[Q2LUMP_LEAFFACES]);
4823 Mod_Q2BSP_LoadLeafBrushes(&lumpsb[Q2LUMP_LEAFBRUSHES]);
4824 Mod_Q2BSP_LoadVisibility(&lumpsb[Q2LUMP_VISIBILITY]);
4825 Mod_Q2BSP_LoadPOP(&lumpsb[Q2LUMP_POP]);
4826 Mod_Q2BSP_LoadAreas(&lumpsb[Q2LUMP_AREAS]);
4827 Mod_Q2BSP_LoadAreaPortals(&lumpsb[Q2LUMP_AREAPORTALS]);
4828 Mod_Q2BSP_LoadLeafs(&lumpsb[Q2LUMP_LEAFS]);
4829 Mod_Q2BSP_LoadNodes(&lumpsb[Q2LUMP_NODES]);
4830 Mod_Q2BSP_LoadSubmodels(&lumpsb[Q2LUMP_MODELS]);
4832 for (i = 0; i < Q2HEADER_LUMPS; i++)
4833 if (lumpsb[i].readcount != lumpsb[i].cursize)
4834 Host_Error("Lump %i incorrectly loaded (readcount %i, size %i)\n", i, lumpsb[i].readcount, lumpsb[i].cursize);
4836 // we don't actually set MATERIALFLAG_WATERALPHA on anything, so this
4837 // doesn't enable the cvar, just indicates that transparent water is OK
4838 loadmodel->brush.supportwateralpha = true;
4840 // we don't need the compressed pvs data anymore
4841 if (mod->brushq1.data_compressedpvs)
4842 Mem_Free(mod->brushq1.data_compressedpvs);
4843 mod->brushq1.data_compressedpvs = NULL;
4844 mod->brushq1.num_compressedpvs = 0;
4846 // the MakePortals code works fine on the q2bsp data as well
4847 if (mod_bsp_portalize.integer)
4848 Mod_Q1BSP_MakePortals();
4850 mod->numframes = 0; // q2bsp animations are kind of special, frame is unbounded...
4853 // make a single combined shadow mesh to allow optimized shadow volume creation
4854 Mod_Q1BSP_CreateShadowMesh(loadmodel);
4856 if (loadmodel->brush.numsubmodels)
4857 loadmodel->brush.submodels = (dp_model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
4859 totalstylesurfaces = 0;
4861 for (i = 0;i < mod->brush.numsubmodels;i++)
4863 memset(stylecounts, 0, sizeof(stylecounts));
4864 for (k = 0;k < mod->brushq1.submodels[i].numfaces;k++)
4866 surface = mod->data_surfaces + mod->brushq1.submodels[i].firstface + k;
4867 for (j = 0;j < MAXLIGHTMAPS;j++)
4868 stylecounts[surface->lightmapinfo->styles[j]]++;
4870 for (k = 0;k < 255;k++)
4874 totalstylesurfaces += stylecounts[k];
4877 datapointer = (unsigned char *)Mem_Alloc(mod->mempool, mod->num_surfaces * sizeof(int) + totalstyles * sizeof(model_brush_lightstyleinfo_t) + totalstylesurfaces * sizeof(int *));
4878 // set up the world model, then on each submodel copy from the world model
4879 // and set up the submodel with the respective model info.
4881 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
4883 mnode_t *rootnode = NULL;
4884 int firstbrush = loadmodel->brush.num_brushes, lastbrush = 0;
4888 // duplicate the basic information
4889 dpsnprintf(name, sizeof(name), "*%i", i);
4890 mod = Mod_FindName(name, loadmodel->name);
4891 // copy the base model to this one
4893 // rename the clone back to its proper name
4894 strlcpy(mod->name, name, sizeof(mod->name));
4895 mod->brush.parentmodel = loadmodel;
4896 // textures and memory belong to the main model
4897 mod->texturepool = NULL;
4898 mod->mempool = NULL;
4899 mod->brush.GetPVS = NULL;
4900 mod->brush.FatPVS = NULL;
4901 mod->brush.BoxTouchingPVS = NULL;
4902 mod->brush.BoxTouchingLeafPVS = NULL;
4903 mod->brush.BoxTouchingVisibleLeafs = NULL;
4904 mod->brush.FindBoxClusters = NULL;
4905 mod->brush.LightPoint = NULL;
4906 mod->brush.AmbientSoundLevelsForPoint = NULL;
4908 mod->brush.submodel = i;
4909 if (loadmodel->brush.submodels)
4910 loadmodel->brush.submodels[i] = mod;
4912 bm = &mod->brushq1.submodels[i];
4914 // we store the headnode (there's only one in Q2BSP) as if it were the first hull
4915 mod->brushq1.hulls[0].firstclipnode = bm->headnode[0];
4917 mod->firstmodelsurface = bm->firstface;
4918 mod->nummodelsurfaces = bm->numfaces;
4920 // set node/leaf parents for this submodel
4921 // note: if the root of this submodel is a leaf (headnode[0] < 0) then there is nothing to do...
4922 // (this happens in base3.bsp)
4923 if (bm->headnode[0] >= 0)
4924 rootnode = mod->brush.data_nodes + bm->headnode[0];
4926 rootnode = (mnode_t*)(mod->brush.data_leafs + -1 - bm->headnode[0]);
4927 Mod_Q1BSP_LoadNodes_RecursiveSetParent(rootnode, NULL);
4929 // make the model surface list (used by shadowing/lighting)
4930 mod->sortedmodelsurfaces = (int *)datapointer;datapointer += mod->nummodelsurfaces * sizeof(int);
4931 Mod_Q2BSP_FindSubmodelBrushRange_r(mod, rootnode, &firstbrush, &lastbrush);
4932 if (firstbrush <= lastbrush)
4934 mod->firstmodelbrush = firstbrush;
4935 mod->nummodelbrushes = lastbrush + 1 - firstbrush;
4939 mod->firstmodelbrush = 0;
4940 mod->nummodelbrushes = 0;
4942 Mod_MakeSortedSurfaces(mod);
4944 VectorCopy(bm->mins, mod->normalmins);
4945 VectorCopy(bm->maxs, mod->normalmaxs);
4946 dist = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
4947 modelyawradius = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
4948 modelyawradius = dist*dist+modelyawradius*modelyawradius;
4949 modelradius = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
4950 modelradius = modelyawradius + modelradius * modelradius;
4951 modelyawradius = sqrt(modelyawradius);
4952 modelradius = sqrt(modelradius);
4953 mod->yawmins[0] = mod->yawmins[1] = -modelyawradius;
4954 mod->yawmins[2] = mod->normalmins[2];
4955 mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius;
4956 mod->yawmaxs[2] = mod->normalmaxs[2];
4957 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
4958 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
4959 mod->radius = modelradius;
4960 mod->radius2 = modelradius * modelradius;
4962 // this gets altered below if sky or water is used
4963 mod->DrawSky = NULL;
4964 mod->DrawAddWaterPlanes = NULL;
4966 // scan surfaces for sky and water and flag the submodel as possessing these features or not
4967 // build lightstyle lists for quick marking of dirty lightmaps when lightstyles flicker
4968 if (mod->nummodelsurfaces)
4970 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
4971 if (surface->texture->basematerialflags & MATERIALFLAG_SKY)
4973 if (j < mod->nummodelsurfaces)
4974 mod->DrawSky = R_Q1BSP_DrawSky;
4976 for (j = 0, surface = &mod->data_surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surface++)
4977 if (surface->texture->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
4979 if (j < mod->nummodelsurfaces)
4980 mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
4982 // build lightstyle update chains
4983 // (used to rapidly mark lightmapupdateflags on many surfaces
4984 // when d_lightstylevalue changes)
4985 memset(stylecounts, 0, sizeof(stylecounts));
4986 for (k = 0;k < mod->nummodelsurfaces;k++)
4988 surface = mod->data_surfaces + mod->firstmodelsurface + k;
4989 for (j = 0;j < MAXLIGHTMAPS;j++)
4990 stylecounts[surface->lightmapinfo->styles[j]]++;
4992 mod->brushq1.num_lightstyles = 0;
4993 for (k = 0;k < 255;k++)
4997 styleinfo[mod->brushq1.num_lightstyles].style = k;
4998 styleinfo[mod->brushq1.num_lightstyles].value = 0;
4999 styleinfo[mod->brushq1.num_lightstyles].numsurfaces = 0;
5000 styleinfo[mod->brushq1.num_lightstyles].surfacelist = (int *)datapointer;datapointer += stylecounts[k] * sizeof(int);
5001 remapstyles[k] = mod->brushq1.num_lightstyles;
5002 mod->brushq1.num_lightstyles++;
5005 for (k = 0;k < mod->nummodelsurfaces;k++)
5007 surface = mod->data_surfaces + mod->firstmodelsurface + k;
5008 for (j = 0;j < MAXLIGHTMAPS;j++)
5010 if (surface->lightmapinfo->styles[j] != 255)
5012 int r = remapstyles[surface->lightmapinfo->styles[j]];
5013 styleinfo[r].surfacelist[styleinfo[r].numsurfaces++] = mod->firstmodelsurface + k;
5017 mod->brushq1.data_lightstyleinfo = (model_brush_lightstyleinfo_t *)datapointer;datapointer += mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t);
5018 memcpy(mod->brushq1.data_lightstyleinfo, styleinfo, mod->brushq1.num_lightstyles * sizeof(model_brush_lightstyleinfo_t));
5022 Con_Printf("warning: empty submodel *%i in %s\n", i+1, loadmodel->name);
5024 //mod->brushq1.num_visleafs = bm->visleafs;
5026 // build a Bounding Interval Hierarchy for culling triangles in light rendering
5027 Mod_MakeCollisionBIH(mod, false, &mod->collision_bih);
5029 // build a Bounding Interval Hierarchy for culling brushes in collision detection
5030 Mod_MakeCollisionBIH(mod, true, &mod->render_bih);
5032 // generate VBOs and other shared data before cloning submodels
5038 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);
5041 static int Mod_Q3BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativecontents);
5042 static int Mod_Q3BSP_NativeContentsFromSuperContents(dp_model_t *model, int supercontents);
5044 static void Mod_Q3BSP_LoadEntities(lump_t *l)
5047 char key[128], value[MAX_INPUTLINE];
5049 loadmodel->brushq3.num_lightgrid_cellsize[0] = 64;
5050 loadmodel->brushq3.num_lightgrid_cellsize[1] = 64;
5051 loadmodel->brushq3.num_lightgrid_cellsize[2] = 128;
5054 loadmodel->brush.entities = (char *)Mem_Alloc(loadmodel->mempool, l->filelen + 1);
5055 memcpy(loadmodel->brush.entities, mod_base + l->fileofs, l->filelen);
5056 loadmodel->brush.entities[l->filelen] = 0;
5057 data = loadmodel->brush.entities;
5058 // some Q3 maps override the lightgrid_cellsize with a worldspawn key
5059 // VorteX: q3map2 FS-R generates tangentspace deluxemaps for q3bsp and sets 'deluxeMaps' key
5060 loadmodel->brushq3.deluxemapping = false;
5061 if (data && COM_ParseToken_Simple(&data, false, false, true) && com_token[0] == '{')
5065 if (!COM_ParseToken_Simple(&data, false, false, true))
5067 if (com_token[0] == '}')
5068 break; // end of worldspawn
5069 if (com_token[0] == '_')
5070 strlcpy(key, com_token + 1, sizeof(key));
5072 strlcpy(key, com_token, sizeof(key));
5073 while (key[strlen(key)-1] == ' ') // remove trailing spaces
5074 key[strlen(key)-1] = 0;
5075 if (!COM_ParseToken_Simple(&data, false, false, true))
5077 strlcpy(value, com_token, sizeof(value));
5078 if (!strcasecmp("gridsize", key)) // this one is case insensitive to 100% match q3map2
5080 #if _MSC_VER >= 1400
5081 #define sscanf sscanf_s
5084 if (sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) == 3 && v[0] != 0 && v[1] != 0 && v[2] != 0)
5085 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
5087 VectorSet(v, 64, 64, 128);
5088 if(sscanf(value, "%f %f %f", &v[0], &v[1], &v[2]) != 3)
5089 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]);
5090 if (v[0] != 0 && v[1] != 0 && v[2] != 0)
5091 VectorCopy(v, loadmodel->brushq3.num_lightgrid_cellsize);
5094 else if (!strcmp("deluxeMaps", key))
5096 if (!strcmp(com_token, "1"))
5098 loadmodel->brushq3.deluxemapping = true;
5099 loadmodel->brushq3.deluxemapping_modelspace = true;
5101 else if (!strcmp(com_token, "2"))
5103 loadmodel->brushq3.deluxemapping = true;
5104 loadmodel->brushq3.deluxemapping_modelspace = false;
5111 static void Mod_Q3BSP_LoadTextures(lump_t *l)
5117 in = (q3dtexture_t *)(mod_base + l->fileofs);
5118 if (l->filelen % sizeof(*in))
5119 Host_Error("Mod_Q3BSP_LoadTextures: funny lump size in %s",loadmodel->name);
5120 count = l->filelen / sizeof(*in);
5121 out = (texture_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5123 loadmodel->data_textures = out;
5124 loadmodel->num_textures = count;
5125 loadmodel->num_texturesperskin = loadmodel->num_textures;
5127 for (i = 0;i < count;i++)
5129 out[i].surfaceflags = LittleLong(in[i].surfaceflags);
5130 out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in[i].contents));
5131 Mod_LoadTextureFromQ3Shader(out + i, in[i].name, true, true, TEXF_MIPMAP | TEXF_ISWORLD | TEXF_PICMIP | TEXF_COMPRESS);
5132 // restore the surfaceflags and supercontents
5133 out[i].surfaceflags = LittleLong(in[i].surfaceflags);
5134 out[i].supercontents = Mod_Q3BSP_SuperContentsFromNativeContents(loadmodel, LittleLong(in[i].contents));
5138 static void Mod_Q3BSP_LoadPlanes(lump_t *l)
5144 in = (q3dplane_t *)(mod_base + l->fileofs);
5145 if (l->filelen % sizeof(*in))
5146 Host_Error("Mod_Q3BSP_LoadPlanes: funny lump size in %s",loadmodel->name);
5147 count = l->filelen / sizeof(*in);
5148 out = (mplane_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5150 loadmodel->brush.data_planes = out;
5151 loadmodel->brush.num_planes = count;
5153 for (i = 0;i < count;i++, in++, out++)
5155 out->normal[0] = LittleFloat(in->normal[0]);
5156 out->normal[1] = LittleFloat(in->normal[1]);
5157 out->normal[2] = LittleFloat(in->normal[2]);
5158 out->dist = LittleFloat(in->dist);
5163 static void Mod_Q3BSP_LoadBrushSides(lump_t *l)
5166 q3mbrushside_t *out;
5169 in = (q3dbrushside_t *)(mod_base + l->fileofs);
5170 if (l->filelen % sizeof(*in))
5171 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
5172 count = l->filelen / sizeof(*in);
5173 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5175 loadmodel->brush.data_brushsides = out;
5176 loadmodel->brush.num_brushsides = count;
5178 for (i = 0;i < count;i++, in++, out++)
5180 n = LittleLong(in->planeindex);
5181 if (n < 0 || n >= loadmodel->brush.num_planes)
5182 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5183 out->plane = loadmodel->brush.data_planes + n;
5184 n = LittleLong(in->textureindex);
5185 if (n < 0 || n >= loadmodel->num_textures)
5186 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
5187 out->texture = loadmodel->data_textures + n;
5191 static void Mod_Q3BSP_LoadBrushSides_IG(lump_t *l)
5193 q3dbrushside_ig_t *in;
5194 q3mbrushside_t *out;
5197 in = (q3dbrushside_ig_t *)(mod_base + l->fileofs);
5198 if (l->filelen % sizeof(*in))
5199 Host_Error("Mod_Q3BSP_LoadBrushSides: funny lump size in %s",loadmodel->name);
5200 count = l->filelen / sizeof(*in);
5201 out = (q3mbrushside_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5203 loadmodel->brush.data_brushsides = out;
5204 loadmodel->brush.num_brushsides = count;
5206 for (i = 0;i < count;i++, in++, out++)
5208 n = LittleLong(in->planeindex);
5209 if (n < 0 || n >= loadmodel->brush.num_planes)
5210 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
5211 out->plane = loadmodel->brush.data_planes + n;
5212 n = LittleLong(in->textureindex);
5213 if (n < 0 || n >= loadmodel->num_textures)
5214 Host_Error("Mod_Q3BSP_LoadBrushSides: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
5215 out->texture = loadmodel->data_textures + n;
5219 static void Mod_Q3BSP_LoadBrushes(lump_t *l)
5223 int i, j, n, c, count, maxplanes, q3surfaceflags;
5224 colplanef_t *planes;
5226 in = (q3dbrush_t *)(mod_base + l->fileofs);
5227 if (l->filelen % sizeof(*in))
5228 Host_Error("Mod_Q3BSP_LoadBrushes: funny lump size in %s",loadmodel->name);
5229 count = l->filelen / sizeof(*in);
5230 out = (q3mbrush_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5232 loadmodel->brush.data_brushes = out;
5233 loadmodel->brush.num_brushes = count;
5238 for (i = 0;i < count;i++, in++, out++)
5240 n = LittleLong(in->firstbrushside);
5241 c = LittleLong(in->numbrushsides);
5242 if (n < 0 || n + c > loadmodel->brush.num_brushsides)
5243 Host_Error("Mod_Q3BSP_LoadBrushes: invalid brushside range %i : %i (%i brushsides)", n, n + c, loadmodel->brush.num_brushsides);
5244 out->firstbrushside = loadmodel->brush.data_brushsides + n;
5245 out->numbrushsides = c;
5246 n = LittleLong(in->textureindex);
5247 if (n < 0 || n >= loadmodel->num_textures)
5248 Host_Error("Mod_Q3BSP_LoadBrushes: invalid textureindex %i (%i textures)", n, loadmodel->num_textures);
5249 out->texture = loadmodel->data_textures + n;
5251 // make a list of mplane_t structs to construct a colbrush from
5252 if (maxplanes < out->numbrushsides)
5254 maxplanes = out->numbrushsides;
5257 planes = (colplanef_t *)Mem_Alloc(tempmempool, sizeof(colplanef_t) * maxplanes);
5260 for (j = 0;j < out->numbrushsides;j++)
5262 VectorCopy(out->firstbrushside[j].plane->normal, planes[j].normal);
5263 planes[j].dist = out->firstbrushside[j].plane->dist;
5264 planes[j].q3surfaceflags = out->firstbrushside[j].texture->surfaceflags;
5265 planes[j].texture = out->firstbrushside[j].texture;
5266 q3surfaceflags |= planes[j].q3surfaceflags;
5268 // make the colbrush from the planes
5269 out->colbrushf = Collision_NewBrushFromPlanes(loadmodel->mempool, out->numbrushsides, planes, out->texture->supercontents, q3surfaceflags, out->texture, true);
5271 // this whole loop can take a while (e.g. on redstarrepublic4)
5272 CL_KeepaliveMessage(false);
5278 static void Mod_Q3BSP_LoadEffects(lump_t *l)
5284 in = (q3deffect_t *)(mod_base + l->fileofs);
5285 if (l->filelen % sizeof(*in))
5286 Host_Error("Mod_Q3BSP_LoadEffects: funny lump size in %s",loadmodel->name);
5287 count = l->filelen / sizeof(*in);
5288 out = (q3deffect_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5290 loadmodel->brushq3.data_effects = out;
5291 loadmodel->brushq3.num_effects = count;
5293 for (i = 0;i < count;i++, in++, out++)
5295 strlcpy (out->shadername, in->shadername, sizeof (out->shadername));
5296 n = LittleLong(in->brushindex);
5297 if (n >= loadmodel->brush.num_brushes)
5299 Con_Printf("Mod_Q3BSP_LoadEffects: invalid brushindex %i (%i brushes), setting to -1\n", n, loadmodel->brush.num_brushes);
5302 out->brushindex = n;
5303 out->unknown = LittleLong(in->unknown);
5307 static void Mod_Q3BSP_LoadVertices(lump_t *l)
5312 in = (q3dvertex_t *)(mod_base + l->fileofs);
5313 if (l->filelen % sizeof(*in))
5314 Host_Error("Mod_Q3BSP_LoadVertices: funny lump size in %s",loadmodel->name);
5315 loadmodel->brushq3.num_vertices = count = l->filelen / sizeof(*in);
5316 loadmodel->brushq3.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, count * (sizeof(float) * (3 + 3 + 2 + 2 + 4)));
5317 loadmodel->brushq3.data_normal3f = loadmodel->brushq3.data_vertex3f + count * 3;
5318 loadmodel->brushq3.data_texcoordtexture2f = loadmodel->brushq3.data_normal3f + count * 3;
5319 loadmodel->brushq3.data_texcoordlightmap2f = loadmodel->brushq3.data_texcoordtexture2f + count * 2;
5320 loadmodel->brushq3.data_color4f = loadmodel->brushq3.data_texcoordlightmap2f + count * 2;
5322 for (i = 0;i < count;i++, in++)
5324 loadmodel->brushq3.data_vertex3f[i * 3 + 0] = LittleFloat(in->origin3f[0]);
5325 loadmodel->brushq3.data_vertex3f[i * 3 + 1] = LittleFloat(in->origin3f[1]);
5326 loadmodel->brushq3.data_vertex3f[i * 3 + 2] = LittleFloat(in->origin3f[2]);
5327 loadmodel->brushq3.data_normal3f[i * 3 + 0] = LittleFloat(in->normal3f[0]);
5328 loadmodel->brushq3.data_normal3f[i * 3 + 1] = LittleFloat(in->normal3f[1]);
5329 loadmodel->brushq3.data_normal3f[i * 3 + 2] = LittleFloat(in->normal3f[2]);
5330 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 0] = LittleFloat(in->texcoord2f[0]);
5331 loadmodel->brushq3.data_texcoordtexture2f[i * 2 + 1] = LittleFloat(in->texcoord2f[1]);
5332 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 0] = LittleFloat(in->lightmap2f[0]);
5333 loadmodel->brushq3.data_texcoordlightmap2f[i * 2 + 1] = LittleFloat(in->lightmap2f[1]);
5334 // svector/tvector are calculated later in face loading
5335 if(mod_q3bsp_sRGBlightmaps.integer)
5337 // if lightmaps are sRGB, vertex colors are sRGB too, so we need to linearize them
5338 // note: when this is in use, lightmap color 128 is no longer neutral, but "sRGB half power" is
5339 // working like this may be odd, but matches q3map2 -gamma 2.2
5340 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5342 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
5343 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
5344 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
5345 // we fix the brightness consistently via lightmapscale
5349 loadmodel->brushq3.data_color4f[i * 4 + 0] = Image_LinearFloatFromsRGB(in->color4ub[0]);
5350 loadmodel->brushq3.data_color4f[i * 4 + 1] = Image_LinearFloatFromsRGB(in->color4ub[1]);
5351 loadmodel->brushq3.data_color4f[i * 4 + 2] = Image_LinearFloatFromsRGB(in->color4ub[2]);
5356 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5358 loadmodel->brushq3.data_color4f[i * 4 + 0] = Image_sRGBFloatFromLinear_Lightmap(in->color4ub[0]);
5359 loadmodel->brushq3.data_color4f[i * 4 + 1] = Image_sRGBFloatFromLinear_Lightmap(in->color4ub[1]);
5360 loadmodel->brushq3.data_color4f[i * 4 + 2] = Image_sRGBFloatFromLinear_Lightmap(in->color4ub[2]);
5364 loadmodel->brushq3.data_color4f[i * 4 + 0] = in->color4ub[0] * (1.0f / 255.0f);
5365 loadmodel->brushq3.data_color4f[i * 4 + 1] = in->color4ub[1] * (1.0f / 255.0f);
5366 loadmodel->brushq3.data_color4f[i * 4 + 2] = in->color4ub[2] * (1.0f / 255.0f);
5369 loadmodel->brushq3.data_color4f[i * 4 + 3] = in->color4ub[3] * (1.0f / 255.0f);
5370 if(in->color4ub[0] != 255 || in->color4ub[1] != 255 || in->color4ub[2] != 255)
5371 loadmodel->lit = true;
5375 static void Mod_Q3BSP_LoadTriangles(lump_t *l)
5381 in = (int *)(mod_base + l->fileofs);
5382 if (l->filelen % sizeof(int[3]))
5383 Host_Error("Mod_Q3BSP_LoadTriangles: funny lump size in %s",loadmodel->name);
5384 count = l->filelen / sizeof(*in);
5386 if(!loadmodel->brushq3.num_vertices)
5389 Con_Printf("Mod_Q3BSP_LoadTriangles: %s has triangles but no vertexes, broken compiler, ignoring problem\n", loadmodel->name);
5390 loadmodel->brushq3.num_triangles = 0;
5394 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5395 loadmodel->brushq3.num_triangles = count / 3;
5396 loadmodel->brushq3.data_element3i = out;
5398 for (i = 0;i < count;i++, in++, out++)
5400 *out = LittleLong(*in);
5401 if (*out < 0 || *out >= loadmodel->brushq3.num_vertices)
5403 Con_Printf("Mod_Q3BSP_LoadTriangles: invalid vertexindex %i (%i vertices), setting to 0\n", *out, loadmodel->brushq3.num_vertices);
5409 static void Mod_Q3BSP_LoadLightmaps(lump_t *l, lump_t *faceslump)
5411 q3dlightmap_t *input_pointer;
5429 int mergedrowsxcolumns;
5434 unsigned char *mergedpixels;
5435 unsigned char *mergeddeluxepixels;
5436 unsigned char *mergebuf;
5437 char mapname[MAX_QPATH];
5439 unsigned char *inpixels[10000]; // max count q3map2 can output (it uses 4 digits)
5442 // defaults for q3bsp
5449 loadmodel->brushq3.lightmapsize = 128;
5451 if (cls.state == ca_dedicated)
5454 if(mod_q3bsp_nolightmaps.integer)
5460 // prefer internal LMs for compatibility (a BSP contains no info on whether external LMs exist)
5461 if (developer_loading.integer)
5462 Con_Printf("Using internal lightmaps\n");
5463 input_pointer = (q3dlightmap_t *)(mod_base + l->fileofs);
5464 if (l->filelen % sizeof(*input_pointer))
5465 Host_Error("Mod_Q3BSP_LoadLightmaps: funny lump size in %s",loadmodel->name);
5466 count = l->filelen / sizeof(*input_pointer);
5467 for(i = 0; i < count; ++i)
5468 inpixels[i] = input_pointer[i].rgb;
5472 // no internal lightmaps
5473 // try external lightmaps
5474 if (developer_loading.integer)
5475 Con_Printf("Using external lightmaps\n");
5476 FS_StripExtension(loadmodel->name, mapname, sizeof(mapname));
5477 inpixels[0] = loadimagepixelsbgra(va(vabuf, sizeof(vabuf), "%s/lm_%04d", mapname, 0), false, false, false, NULL);
5481 // using EXTERNAL lightmaps instead
5482 if(image_width != (int) CeilPowerOf2(image_width) || image_width != image_height)
5484 Mem_Free(inpixels[0]);
5485 Host_Error("Mod_Q3BSP_LoadLightmaps: invalid external lightmap size in %s",loadmodel->name);
5495 for(count = 1; ; ++count)
5497 inpixels[count] = loadimagepixelsbgra(va(vabuf, sizeof(vabuf), "%s/lm_%04d", mapname, count), false, false, false, NULL);
5498 if(!inpixels[count])
5499 break; // we got all of them
5500 if(image_width != size || image_height != size)
5502 Mem_Free(inpixels[count]);
5503 inpixels[count] = NULL;
5504 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);
5510 loadmodel->brushq3.lightmapsize = size;
5511 loadmodel->brushq3.num_originallightmaps = count;
5513 // now check the surfaces to see if any of them index an odd numbered
5514 // lightmap, if so this is not a deluxemapped bsp file
5516 // also check what lightmaps are actually used, because q3map2 sometimes
5517 // (always?) makes an unused one at the end, which
5518 // q3map2 sometimes (or always?) makes a second blank lightmap for no
5519 // reason when only one lightmap is used, which can throw off the
5520 // deluxemapping detection method, so check 2-lightmap bsp's specifically
5521 // to see if the second lightmap is blank, if so it is not deluxemapped.
5522 // VorteX: autodetect only if previous attempt to find "deluxeMaps" key
5523 // in Mod_Q3BSP_LoadEntities was failed
5524 if (!loadmodel->brushq3.deluxemapping)
5526 loadmodel->brushq3.deluxemapping = !(count & 1);
5527 loadmodel->brushq3.deluxemapping_modelspace = true;
5529 if (loadmodel->brushq3.deluxemapping)
5531 int facecount = faceslump->filelen / sizeof(q3dface_t);
5532 q3dface_t *faces = (q3dface_t *)(mod_base + faceslump->fileofs);
5533 for (i = 0;i < facecount;i++)
5535 j = LittleLong(faces[i].lightmapindex);
5538 endlightmap = max(endlightmap, j + 1);
5539 if ((j & 1) || j + 1 >= count)
5541 loadmodel->brushq3.deluxemapping = false;
5548 // q3map2 sometimes (or always?) makes a second blank lightmap for no
5549 // reason when only one lightmap is used, which can throw off the
5550 // deluxemapping detection method, so check 2-lightmap bsp's specifically
5551 // to see if the second lightmap is blank, if so it is not deluxemapped.
5553 // further research has shown q3map2 sometimes creates a deluxemap and two
5554 // blank lightmaps, which must be handled properly as well
5555 if (endlightmap == 1 && count > 1)
5558 for (i = 0;i < size*size;i++)
5560 if (c[bytesperpixel*i + rgbmap[0]])
5562 if (c[bytesperpixel*i + rgbmap[1]])
5564 if (c[bytesperpixel*i + rgbmap[2]])
5569 // all pixels in the unused lightmap were black...
5570 loadmodel->brushq3.deluxemapping = false;
5575 Con_DPrintf("%s is %sdeluxemapped\n", loadmodel->name, loadmodel->brushq3.deluxemapping ? "" : "not ");
5577 // figure out what the most reasonable merge power is within limits
5579 // find the appropriate NxN dimensions to merge to, to avoid wasted space
5580 realcount = count >> (int)loadmodel->brushq3.deluxemapping;
5582 // figure out how big the merged texture has to be
5583 mergegoal = 128<<bound(0, mod_q3bsp_lightmapmergepower.integer, 6);
5584 mergegoal = bound(size, mergegoal, (int)vid.maxtexturesize_2d);
5585 while (mergegoal > size && mergegoal * mergegoal / 4 >= size * size * realcount)
5587 mergedwidth = mergegoal;
5588 mergedheight = mergegoal;
5589 // choose non-square size (2x1 aspect) if only half the space is used;
5590 // this really only happens when the entire set fits in one texture, if
5591 // there are multiple textures, we don't worry about shrinking the last
5592 // one to fit, because the driver prefers the same texture size on
5593 // consecutive draw calls...
5594 if (mergedwidth * mergedheight / 2 >= size*size*realcount)
5597 loadmodel->brushq3.num_lightmapmergedwidthpower = 0;
5598 loadmodel->brushq3.num_lightmapmergedheightpower = 0;
5599 while (mergedwidth > size<<loadmodel->brushq3.num_lightmapmergedwidthpower)
5600 loadmodel->brushq3.num_lightmapmergedwidthpower++;
5601 while (mergedheight > size<<loadmodel->brushq3.num_lightmapmergedheightpower)
5602 loadmodel->brushq3.num_lightmapmergedheightpower++;
5603 loadmodel->brushq3.num_lightmapmergedwidthheightdeluxepower = loadmodel->brushq3.num_lightmapmergedwidthpower + loadmodel->brushq3.num_lightmapmergedheightpower + (loadmodel->brushq3.deluxemapping ? 1 : 0);
5605 powerx = loadmodel->brushq3.num_lightmapmergedwidthpower;
5606 powery = loadmodel->brushq3.num_lightmapmergedheightpower;
5607 powerxy = powerx+powery;
5608 powerdxy = loadmodel->brushq3.deluxemapping + powerxy;
5610 mergedcolumns = 1 << powerx;
5611 mergedrows = 1 << powery;
5612 mergedrowsxcolumns = 1 << powerxy;
5614 loadmodel->brushq3.num_mergedlightmaps = (realcount + (1 << powerxy) - 1) >> powerxy;
5615 loadmodel->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
5616 if (loadmodel->brushq3.deluxemapping)
5617 loadmodel->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
5619 // allocate a texture pool if we need it
5620 if (loadmodel->texturepool == NULL && cls.state != ca_dedicated)
5621 loadmodel->texturepool = R_AllocTexturePool();
5623 mergedpixels = (unsigned char *) Mem_Alloc(tempmempool, mergedwidth * mergedheight * 4);
5624 mergeddeluxepixels = loadmodel->brushq3.deluxemapping ? (unsigned char *) Mem_Alloc(tempmempool, mergedwidth * mergedheight * 4) : NULL;
5625 for (i = 0;i < count;i++)
5627 // figure out which merged lightmap texture this fits into
5628 realindex = i >> (int)loadmodel->brushq3.deluxemapping;
5629 lightmapindex = i >> powerdxy;
5631 // choose the destination address
5632 mergebuf = (loadmodel->brushq3.deluxemapping && (i & 1)) ? mergeddeluxepixels : mergedpixels;
5633 mergebuf += 4 * (realindex & (mergedcolumns-1))*size + 4 * ((realindex >> powerx) & (mergedrows-1))*mergedwidth*size;
5634 if ((i & 1) == 0 || !loadmodel->brushq3.deluxemapping)
5635 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);
5637 // convert pixels from RGB or BGRA while copying them into the destination rectangle
5638 for (j = 0;j < size;j++)
5639 for (k = 0;k < size;k++)
5641 mergebuf[(j*mergedwidth+k)*4+0] = inpixels[i][(j*size+k)*bytesperpixel+rgbmap[0]];
5642 mergebuf[(j*mergedwidth+k)*4+1] = inpixels[i][(j*size+k)*bytesperpixel+rgbmap[1]];
5643 mergebuf[(j*mergedwidth+k)*4+2] = inpixels[i][(j*size+k)*bytesperpixel+rgbmap[2]];
5644 mergebuf[(j*mergedwidth+k)*4+3] = 255;
5647 // upload texture if this was the last tile being written to the texture
5648 if (((realindex + 1) & (mergedrowsxcolumns - 1)) == 0 || (realindex + 1) == realcount)
5650 if (loadmodel->brushq3.deluxemapping && (i & 1))
5651 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);
5654 if(mod_q3bsp_sRGBlightmaps.integer)
5657 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5659 t = TEXTYPE_BGRA; // in stupid fallback mode, we upload lightmaps in sRGB form and just fix their brightness
5660 // we fix the brightness consistently via lightmapscale
5663 t = TEXTYPE_SRGB_BGRA; // normally, we upload lightmaps in sRGB form (possibly downconverted to linear)
5664 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);
5668 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
5669 Image_MakesRGBColorsFromLinear_Lightmap(mergedpixels, mergedpixels, mergedwidth * mergedheight);
5670 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);
5676 if (mergeddeluxepixels)
5677 Mem_Free(mergeddeluxepixels);
5678 Mem_Free(mergedpixels);
5681 for(i = 0; i < count; ++i)
5682 Mem_Free(inpixels[i]);
5686 static void Mod_Q3BSP_BuildBBoxes(const int *element3i, int num_triangles, const float *vertex3f, float **collisionbbox6f, int *collisionstride, int stride)
5691 *collisionstride = stride;
5694 cnt = (num_triangles + stride - 1) / stride;
5695 *collisionbbox6f = (float *) Mem_Alloc(loadmodel->mempool, sizeof(float[6]) * cnt);
5696 for(j = 0; j < cnt; ++j)
5698 mins = &((*collisionbbox6f)[6 * j + 0]);
5699 maxs = &((*collisionbbox6f)[6 * j + 3]);
5700 for(k = 0; k < stride; ++k)
5702 tri = j * stride + k;
5703 if(tri >= num_triangles)
5705 vert = &(vertex3f[element3i[3 * tri + 0] * 3]);
5706 if(!k || vert[0] < mins[0]) mins[0] = vert[0];
5707 if(!k || vert[1] < mins[1]) mins[1] = vert[1];
5708 if(!k || vert[2] < mins[2]) mins[2] = vert[2];
5709 if(!k || vert[0] > maxs[0]) maxs[0] = vert[0];
5710 if(!k || vert[1] > maxs[1]) maxs[1] = vert[1];
5711 if(!k || vert[2] > maxs[2]) maxs[2] = vert[2];
5712 vert = &(vertex3f[element3i[3 * tri + 1] * 3]);
5713 if(vert[0] < mins[0]) mins[0] = vert[0];
5714 if(vert[1] < mins[1]) mins[1] = vert[1];
5715 if(vert[2] < mins[2]) mins[2] = vert[2];
5716 if(vert[0] > maxs[0]) maxs[0] = vert[0];
5717 if(vert[1] > maxs[1]) maxs[1] = vert[1];
5718 if(vert[2] > maxs[2]) maxs[2] = vert[2];
5719 vert = &(vertex3f[element3i[3 * tri + 2] * 3]);
5720 if(vert[0] < mins[0]) mins[0] = vert[0];
5721 if(vert[1] < mins[1]) mins[1] = vert[1];
5722 if(vert[2] < mins[2]) mins[2] = vert[2];
5723 if(vert[0] > maxs[0]) maxs[0] = vert[0];
5724 if(vert[1] > maxs[1]) maxs[1] = vert[1];
5725 if(vert[2] > maxs[2]) maxs[2] = vert[2];
5730 *collisionbbox6f = NULL;
5733 typedef struct patchtess_s
5737 // Auxiliary data used only by patch loading code in Mod_Q3BSP_LoadFaces
5740 float *originalvertex3f;
5743 #define PATCHTESS_SAME_LODGROUP(a,b) \
5745 (a).lodgroup[0] == (b).lodgroup[0] && \
5746 (a).lodgroup[1] == (b).lodgroup[1] && \
5747 (a).lodgroup[2] == (b).lodgroup[2] && \
5748 (a).lodgroup[3] == (b).lodgroup[3] && \
5749 (a).lodgroup[4] == (b).lodgroup[4] && \
5750 (a).lodgroup[5] == (b).lodgroup[5] \
5753 static void Mod_Q3BSP_LoadFaces(lump_t *l)
5755 q3dface_t *in, *oldin;
5756 msurface_t *out, *oldout;
5757 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;
5758 float lightmaptcbase[2], lightmaptcscale[2];
5759 //int *originalelement3i;
5760 //int *originalneighbor3i;
5761 float *originalvertex3f;
5762 //float *originalsvector3f;
5763 //float *originaltvector3f;
5764 float *originalnormal3f;
5765 float *originalcolor4f;
5766 float *originaltexcoordtexture2f;
5767 float *originaltexcoordlightmap2f;
5768 float *surfacecollisionvertex3f;
5769 int *surfacecollisionelement3i;
5771 patchtess_t *patchtess = NULL;
5772 int patchtesscount = 0;
5775 in = (q3dface_t *)(mod_base + l->fileofs);
5776 if (l->filelen % sizeof(*in))
5777 Host_Error("Mod_Q3BSP_LoadFaces: funny lump size in %s",loadmodel->name);
5778 count = l->filelen / sizeof(*in);
5779 out = (msurface_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
5781 loadmodel->data_surfaces = out;
5782 loadmodel->num_surfaces = count;
5785 patchtess = (patchtess_t*) Mem_Alloc(tempmempool, count * sizeof(*patchtess));
5793 for (;i < count;i++, in++, out++)
5795 // check face type first
5796 type = LittleLong(in->type);
5797 if (type != Q3FACETYPE_FLAT
5798 && type != Q3FACETYPE_PATCH
5799 && type != Q3FACETYPE_MESH
5800 && type != Q3FACETYPE_FLARE)
5802 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: unknown face type %i\n", i, type);
5806 n = LittleLong(in->textureindex);
5807 if (n < 0 || n >= loadmodel->num_textures)
5809 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i: invalid textureindex %i (%i textures)\n", i, n, loadmodel->num_textures);
5812 out->texture = loadmodel->data_textures + n;
5813 n = LittleLong(in->effectindex);
5814 if (n < -1 || n >= loadmodel->brushq3.num_effects)
5816 if (developer_extra.integer)
5817 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid effectindex %i (%i effects)\n", i, out->texture->name, n, loadmodel->brushq3.num_effects);
5823 out->effect = loadmodel->brushq3.data_effects + n;
5825 if (cls.state != ca_dedicated)
5827 out->lightmaptexture = NULL;
5828 out->deluxemaptexture = r_texture_blanknormalmap;
5829 n = LittleLong(in->lightmapindex);
5832 else if (n >= loadmodel->brushq3.num_originallightmaps)
5834 if(loadmodel->brushq3.num_originallightmaps != 0)
5835 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid lightmapindex %i (%i lightmaps)\n", i, out->texture->name, n, loadmodel->brushq3.num_originallightmaps);
5840 out->lightmaptexture = loadmodel->brushq3.data_lightmaps[n >> loadmodel->brushq3.num_lightmapmergedwidthheightdeluxepower];
5841 if (loadmodel->brushq3.deluxemapping)
5842 out->deluxemaptexture = loadmodel->brushq3.data_deluxemaps[n >> loadmodel->brushq3.num_lightmapmergedwidthheightdeluxepower];
5843 loadmodel->lit = true;
5847 firstvertex = LittleLong(in->firstvertex);
5848 numvertices = LittleLong(in->numvertices);
5849 firstelement = LittleLong(in->firstelement);
5850 numtriangles = LittleLong(in->numelements) / 3;
5851 if (numtriangles * 3 != LittleLong(in->numelements))
5853 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));
5856 if (firstvertex < 0 || firstvertex + numvertices > loadmodel->brushq3.num_vertices)
5858 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);
5861 if (firstelement < 0 || firstelement + numtriangles * 3 > loadmodel->brushq3.num_triangles * 3)
5863 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);
5868 case Q3FACETYPE_FLAT:
5869 case Q3FACETYPE_MESH:
5870 // no processing necessary
5872 case Q3FACETYPE_PATCH:
5873 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
5874 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
5875 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))
5877 Con_Printf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): invalid patchsize %ix%i\n", i, out->texture->name, patchsize[0], patchsize[1]);
5880 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
5882 // convert patch to Q3FACETYPE_MESH
5883 xtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5884 ytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_tolerance.value);
5885 // bound to user settings
5886 xtess = bound(r_subdivisions_mintess.integer, xtess, r_subdivisions_maxtess.integer);
5887 ytess = bound(r_subdivisions_mintess.integer, ytess, r_subdivisions_maxtess.integer);
5888 // bound to sanity settings
5889 xtess = bound(0, xtess, 1024);
5890 ytess = bound(0, ytess, 1024);
5892 // lower quality collision patches! Same procedure as before, but different cvars
5893 // convert patch to Q3FACETYPE_MESH
5894 cxtess = Q3PatchTesselationOnX(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
5895 cytess = Q3PatchTesselationOnY(patchsize[0], patchsize[1], 3, originalvertex3f, r_subdivisions_collision_tolerance.value);
5896 // bound to user settings
5897 cxtess = bound(r_subdivisions_collision_mintess.integer, cxtess, r_subdivisions_collision_maxtess.integer);
5898 cytess = bound(r_subdivisions_collision_mintess.integer, cytess, r_subdivisions_collision_maxtess.integer);
5899 // bound to sanity settings
5900 cxtess = bound(0, cxtess, 1024);
5901 cytess = bound(0, cytess, 1024);
5903 // store it for the LOD grouping step
5904 patchtess[patchtesscount].info.xsize = patchsize[0];
5905 patchtess[patchtesscount].info.ysize = patchsize[1];
5906 patchtess[patchtesscount].info.lods[PATCH_LOD_VISUAL].xtess = xtess;
5907 patchtess[patchtesscount].info.lods[PATCH_LOD_VISUAL].ytess = ytess;
5908 patchtess[patchtesscount].info.lods[PATCH_LOD_COLLISION].xtess = cxtess;
5909 patchtess[patchtesscount].info.lods[PATCH_LOD_COLLISION].ytess = cytess;
5911 patchtess[patchtesscount].surface_id = i;
5912 patchtess[patchtesscount].lodgroup[0] = LittleFloat(in->specific.patch.mins[0]);
5913 patchtess[patchtesscount].lodgroup[1] = LittleFloat(in->specific.patch.mins[1]);
5914 patchtess[patchtesscount].lodgroup[2] = LittleFloat(in->specific.patch.mins[2]);
5915 patchtess[patchtesscount].lodgroup[3] = LittleFloat(in->specific.patch.maxs[0]);
5916 patchtess[patchtesscount].lodgroup[4] = LittleFloat(in->specific.patch.maxs[1]);
5917 patchtess[patchtesscount].lodgroup[5] = LittleFloat(in->specific.patch.maxs[2]);
5918 patchtess[patchtesscount].originalvertex3f = originalvertex3f;
5921 case Q3FACETYPE_FLARE:
5922 if (developer_extra.integer)
5923 Con_DPrintf("Mod_Q3BSP_LoadFaces: face #%i (texture \"%s\"): Q3FACETYPE_FLARE not supported (yet)\n", i, out->texture->name);
5927 out->num_vertices = numvertices;
5928 out->num_triangles = numtriangles;
5929 meshvertices += out->num_vertices;
5930 meshtriangles += out->num_triangles;
5933 // Fix patches tesselations so that they make no seams
5937 for(i = 0; i < patchtesscount; ++i)
5939 for(j = i+1; j < patchtesscount; ++j)
5941 if (!PATCHTESS_SAME_LODGROUP(patchtess[i], patchtess[j]))
5944 if (Q3PatchAdjustTesselation(3, &patchtess[i].info, patchtess[i].originalvertex3f, &patchtess[j].info, patchtess[j].originalvertex3f) )
5951 // Calculate resulting number of triangles
5952 collisionvertices = 0;
5953 collisiontriangles = 0;
5954 for(i = 0; i < patchtesscount; ++i)
5956 finalwidth = Q3PatchDimForTess(patchtess[i].info.xsize, patchtess[i].info.lods[PATCH_LOD_VISUAL].xtess);
5957 finalheight = Q3PatchDimForTess(patchtess[i].info.ysize,patchtess[i].info.lods[PATCH_LOD_VISUAL].ytess);
5958 numvertices = finalwidth * finalheight;
5959 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
5961 oldout[patchtess[i].surface_id].num_vertices = numvertices;
5962 oldout[patchtess[i].surface_id].num_triangles = numtriangles;
5963 meshvertices += oldout[patchtess[i].surface_id].num_vertices;
5964 meshtriangles += oldout[patchtess[i].surface_id].num_triangles;
5966 finalwidth = Q3PatchDimForTess(patchtess[i].info.xsize, patchtess[i].info.lods[PATCH_LOD_COLLISION].xtess);
5967 finalheight = Q3PatchDimForTess(patchtess[i].info.ysize,patchtess[i].info.lods[PATCH_LOD_COLLISION].ytess);
5968 numvertices = finalwidth * finalheight;
5969 numtriangles = (finalwidth - 1) * (finalheight - 1) * 2;
5971 oldout[patchtess[i].surface_id].num_collisionvertices = numvertices;
5972 oldout[patchtess[i].surface_id].num_collisiontriangles = numtriangles;
5973 collisionvertices += oldout[patchtess[i].surface_id].num_collisionvertices;
5974 collisiontriangles += oldout[patchtess[i].surface_id].num_collisiontriangles;
5980 Mod_AllocSurfMesh(loadmodel->mempool, meshvertices, meshtriangles, false, true, false);
5981 if (collisiontriangles)
5983 loadmodel->brush.data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, collisionvertices * sizeof(float[3]));
5984 loadmodel->brush.data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, collisiontriangles * sizeof(int[3]));
5988 collisionvertices = 0;
5989 collisiontriangles = 0;
5990 for (;i < count && meshvertices + out->num_vertices <= loadmodel->surfmesh.num_vertices;i++, in++, out++)
5992 if (out->num_vertices < 3 || out->num_triangles < 1)
5995 type = LittleLong(in->type);
5996 firstvertex = LittleLong(in->firstvertex);
5997 firstelement = LittleLong(in->firstelement);
5998 out->num_firstvertex = meshvertices;
5999 out->num_firsttriangle = meshtriangles;
6000 out->num_firstcollisiontriangle = collisiontriangles;
6003 case Q3FACETYPE_FLAT:
6004 case Q3FACETYPE_MESH:
6005 // no processing necessary, except for lightmap merging
6006 for (j = 0;j < out->num_vertices;j++)
6008 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 0];
6009 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 1];
6010 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_vertex3f[(firstvertex + j) * 3 + 2];
6011 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 0] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 0];
6012 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 1] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 1];
6013 (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex)[j * 3 + 2] = loadmodel->brushq3.data_normal3f[(firstvertex + j) * 3 + 2];
6014 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 0];
6015 (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordtexture2f[(firstvertex + j) * 2 + 1];
6016 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 0] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 0];
6017 (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex)[j * 2 + 1] = loadmodel->brushq3.data_texcoordlightmap2f[(firstvertex + j) * 2 + 1];
6018 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 0] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 0];
6019 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 1] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 1];
6020 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 2] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 2];
6021 (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex)[j * 4 + 3] = loadmodel->brushq3.data_color4f[(firstvertex + j) * 4 + 3];
6023 for (j = 0;j < out->num_triangles*3;j++)
6024 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = loadmodel->brushq3.data_element3i[firstelement + j] + out->num_firstvertex;
6026 case Q3FACETYPE_PATCH:
6027 patchsize[0] = LittleLong(in->specific.patch.patchsize[0]);
6028 patchsize[1] = LittleLong(in->specific.patch.patchsize[1]);
6029 originalvertex3f = loadmodel->brushq3.data_vertex3f + firstvertex * 3;
6030 originalnormal3f = loadmodel->brushq3.data_normal3f + firstvertex * 3;
6031 originaltexcoordtexture2f = loadmodel->brushq3.data_texcoordtexture2f + firstvertex * 2;
6032 originaltexcoordlightmap2f = loadmodel->brushq3.data_texcoordlightmap2f + firstvertex * 2;
6033 originalcolor4f = loadmodel->brushq3.data_color4f + firstvertex * 4;
6035 xtess = ytess = cxtess = cytess = -1;
6036 for(j = 0; j < patchtesscount; ++j)
6037 if(patchtess[j].surface_id == i)
6039 xtess = patchtess[j].info.lods[PATCH_LOD_VISUAL].xtess;
6040 ytess = patchtess[j].info.lods[PATCH_LOD_VISUAL].ytess;
6041 cxtess = patchtess[j].info.lods[PATCH_LOD_COLLISION].xtess;
6042 cytess = patchtess[j].info.lods[PATCH_LOD_COLLISION].ytess;
6047 Con_Printf("ERROR: patch %d isn't preprocessed?!?\n", i);
6048 xtess = ytess = cxtess = cytess = 0;
6051 finalwidth = Q3PatchDimForTess(patchsize[0],xtess); //((patchsize[0] - 1) * xtess) + 1;
6052 finalheight = Q3PatchDimForTess(patchsize[1],ytess); //((patchsize[1] - 1) * ytess) + 1;
6053 finalvertices = finalwidth * finalheight;
6054 oldnumtriangles = finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
6055 type = Q3FACETYPE_MESH;
6056 // generate geometry
6057 // (note: normals are skipped because they get recalculated)
6058 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, xtess, ytess);
6059 Q3PatchTesselateFloat(3, sizeof(float[3]), (loadmodel->surfmesh.data_normal3f + 3 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[3]), originalnormal3f, xtess, ytess);
6060 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordtexture2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordtexture2f, xtess, ytess);
6061 Q3PatchTesselateFloat(2, sizeof(float[2]), (loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[2]), originaltexcoordlightmap2f, xtess, ytess);
6062 Q3PatchTesselateFloat(4, sizeof(float[4]), (loadmodel->surfmesh.data_lightmapcolor4f + 4 * out->num_firstvertex), patchsize[0], patchsize[1], sizeof(float[4]), originalcolor4f, xtess, ytess);
6063 Q3PatchTriangleElements((loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle), finalwidth, finalheight, out->num_firstvertex);
6065 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);
6067 if (developer_extra.integer)
6069 if (out->num_triangles < finaltriangles)
6070 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);
6072 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);
6074 // q3map does not put in collision brushes for curves... ugh
6075 // build the lower quality collision geometry
6076 finalwidth = Q3PatchDimForTess(patchsize[0],cxtess); //((patchsize[0] - 1) * cxtess) + 1;
6077 finalheight = Q3PatchDimForTess(patchsize[1],cytess); //((patchsize[1] - 1) * cytess) + 1;
6078 finalvertices = finalwidth * finalheight;
6079 oldnumtriangles2 = finaltriangles = (finalwidth - 1) * (finalheight - 1) * 2;
6081 // legacy collision geometry implementation
6082 out->deprecatedq3data_collisionvertex3f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * finalvertices);
6083 out->deprecatedq3data_collisionelement3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * finaltriangles);
6084 out->num_collisionvertices = finalvertices;
6085 out->num_collisiontriangles = finaltriangles;
6086 Q3PatchTesselateFloat(3, sizeof(float[3]), out->deprecatedq3data_collisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, cxtess, cytess);
6087 Q3PatchTriangleElements(out->deprecatedq3data_collisionelement3i, finalwidth, finalheight, 0);
6089 //Mod_SnapVertices(3, out->num_vertices, (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), 0.25);
6090 Mod_SnapVertices(3, finalvertices, out->deprecatedq3data_collisionvertex3f, 1);
6092 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(finaltriangles, out->deprecatedq3data_collisionelement3i, out->deprecatedq3data_collisionelement3i, out->deprecatedq3data_collisionvertex3f);
6094 // now optimize the collision mesh by finding triangle bboxes...
6095 Mod_Q3BSP_BuildBBoxes(out->deprecatedq3data_collisionelement3i, out->num_collisiontriangles, out->deprecatedq3data_collisionvertex3f, &out->deprecatedq3data_collisionbbox6f, &out->deprecatedq3num_collisionbboxstride, mod_q3bsp_curves_collisions_stride.integer);
6096 Mod_Q3BSP_BuildBBoxes(loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle, out->num_triangles, loadmodel->surfmesh.data_vertex3f, &out->deprecatedq3data_bbox6f, &out->deprecatedq3num_bboxstride, mod_q3bsp_curves_stride.integer);
6098 // store collision geometry for BIH collision tree
6099 surfacecollisionvertex3f = loadmodel->brush.data_collisionvertex3f + collisionvertices * 3;
6100 surfacecollisionelement3i = loadmodel->brush.data_collisionelement3i + collisiontriangles * 3;
6101 Q3PatchTesselateFloat(3, sizeof(float[3]), surfacecollisionvertex3f, patchsize[0], patchsize[1], sizeof(float[3]), originalvertex3f, cxtess, cytess);
6102 Q3PatchTriangleElements(surfacecollisionelement3i, finalwidth, finalheight, collisionvertices);
6103 Mod_SnapVertices(3, finalvertices, surfacecollisionvertex3f, 1);
6105 // remove this once the legacy code is removed
6107 int nc = out->num_collisiontriangles;
6109 out->num_collisiontriangles = Mod_RemoveDegenerateTriangles(finaltriangles, surfacecollisionelement3i, surfacecollisionelement3i, loadmodel->brush.data_collisionvertex3f);
6111 if(nc != out->num_collisiontriangles)
6113 Con_Printf("number of collision triangles differs between BIH and BSP. FAIL.\n");
6118 if (developer_extra.integer)
6119 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);
6121 collisionvertices += finalvertices;
6122 collisiontriangles += out->num_collisiontriangles;
6127 meshvertices += out->num_vertices;
6128 meshtriangles += out->num_triangles;
6129 for (j = 0, invalidelements = 0;j < out->num_triangles * 3;j++)
6130 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)
6132 if (invalidelements)
6134 Con_Printf("Mod_Q3BSP_LoadFaces: Warning: face #%i has %i invalid elements, type = %i, texture->name = \"%s\", texture->surfaceflags = %i, firstvertex = %i, numvertices = %i, firstelement = %i, numelements = %i, elements list:\n", i, invalidelements, type, out->texture->name, out->texture->surfaceflags, firstvertex, out->num_vertices, firstelement, out->num_triangles * 3);
6135 for (j = 0;j < out->num_triangles * 3;j++)
6137 Con_Printf(" %i", (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] - out->num_firstvertex);
6138 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)
6139 (loadmodel->surfmesh.data_element3i + 3 * out->num_firsttriangle)[j] = out->num_firstvertex;
6143 // calculate a bounding box
6144 VectorClear(out->mins);
6145 VectorClear(out->maxs);
6146 if (out->num_vertices)
6148 if (cls.state != ca_dedicated && out->lightmaptexture)
6150 // figure out which part of the merged lightmap this fits into
6151 int lightmapindex = LittleLong(in->lightmapindex) >> (loadmodel->brushq3.deluxemapping ? 1 : 0);
6152 int mergewidth = R_TextureWidth(out->lightmaptexture) / loadmodel->brushq3.lightmapsize;
6153 int mergeheight = R_TextureHeight(out->lightmaptexture) / loadmodel->brushq3.lightmapsize;
6154 lightmapindex &= mergewidth * mergeheight - 1;
6155 lightmaptcscale[0] = 1.0f / mergewidth;
6156 lightmaptcscale[1] = 1.0f / mergeheight;
6157 lightmaptcbase[0] = (lightmapindex % mergewidth) * lightmaptcscale[0];
6158 lightmaptcbase[1] = (lightmapindex / mergewidth) * lightmaptcscale[1];
6159 // modify the lightmap texcoords to match this region of the merged lightmap
6160 for (j = 0, v = loadmodel->surfmesh.data_texcoordlightmap2f + 2 * out->num_firstvertex;j < out->num_vertices;j++, v += 2)
6162 v[0] = v[0] * lightmaptcscale[0] + lightmaptcbase[0];
6163 v[1] = v[1] * lightmaptcscale[1] + lightmaptcbase[1];
6166 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->mins);
6167 VectorCopy((loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex), out->maxs);
6168 for (j = 1, v = (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex) + 3;j < out->num_vertices;j++, v += 3)
6170 out->mins[0] = min(out->mins[0], v[0]);
6171 out->maxs[0] = max(out->maxs[0], v[0]);
6172 out->mins[1] = min(out->mins[1], v[1]);
6173 out->maxs[1] = max(out->maxs[1], v[1]);
6174 out->mins[2] = min(out->mins[2], v[2]);
6175 out->maxs[2] = max(out->maxs[2], v[2]);
6177 out->mins[0] -= 1.0f;
6178 out->mins[1] -= 1.0f;
6179 out->mins[2] -= 1.0f;
6180 out->maxs[0] += 1.0f;
6181 out->maxs[1] += 1.0f;
6182 out->maxs[2] += 1.0f;
6184 // set lightmap styles for consistency with q1bsp
6185 //out->lightmapinfo->styles[0] = 0;
6186 //out->lightmapinfo->styles[1] = 255;
6187 //out->lightmapinfo->styles[2] = 255;
6188 //out->lightmapinfo->styles[3] = 255;
6193 for (;i < count;i++, out++)
6195 if(out->num_vertices && out->num_triangles)
6197 if(out->num_vertices == 0)
6199 Con_Printf("Mod_Q3BSP_LoadFaces: surface %d (texture %s) has no vertices, ignoring\n", i, out->texture ? out->texture->name : "(none)");
6200 if(out->num_triangles == 0)
6201 Con_Printf("Mod_Q3BSP_LoadFaces: surface %d (texture %s) has no triangles, ignoring\n", i, out->texture ? out->texture->name : "(none)");
6203 else if(out->num_triangles == 0)
6204 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)",
6205 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[0 * 3 + 0],
6206 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[1 * 3 + 0],
6207 (loadmodel->surfmesh.data_vertex3f + 3 * out->num_firstvertex)[2 * 3 + 0]);
6210 // for per pixel lighting
6211 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);
6213 // generate ushort elements array if possible
6214 if (loadmodel->surfmesh.data_element3s)
6215 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
6216 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
6218 // free the no longer needed vertex data
6219 loadmodel->brushq3.num_vertices = 0;
6220 if (loadmodel->brushq3.data_vertex3f)
6221 Mem_Free(loadmodel->brushq3.data_vertex3f);
6222 loadmodel->brushq3.data_vertex3f = NULL;
6223 loadmodel->brushq3.data_normal3f = NULL;
6224 loadmodel->brushq3.data_texcoordtexture2f = NULL;
6225 loadmodel->brushq3.data_texcoordlightmap2f = NULL;
6226 loadmodel->brushq3.data_color4f = NULL;
6227 // free the no longer needed triangle data
6228 loadmodel->brushq3.num_triangles = 0;
6229 if (loadmodel->brushq3.data_element3i)
6230 Mem_Free(loadmodel->brushq3.data_element3i);
6231 loadmodel->brushq3.data_element3i = NULL;
6234 Mem_Free(patchtess);
6237 static void Mod_Q3BSP_LoadModels(lump_t *l)
6241 int i, j, n, c, count;
6243 in = (q3dmodel_t *)(mod_base + l->fileofs);
6244 if (l->filelen % sizeof(*in))
6245 Host_Error("Mod_Q3BSP_LoadModels: funny lump size in %s",loadmodel->name);
6246 count = l->filelen / sizeof(*in);
6247 out = (q3dmodel_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6249 loadmodel->brushq3.data_models = out;
6250 loadmodel->brushq3.num_models = count;
6252 for (i = 0;i < count;i++, in++, out++)
6254 for (j = 0;j < 3;j++)
6256 out->mins[j] = LittleFloat(in->mins[j]);
6257 out->maxs[j] = LittleFloat(in->maxs[j]);
6259 n = LittleLong(in->firstface);
6260 c = LittleLong(in->numfaces);
6261 if (n < 0 || n + c > loadmodel->num_surfaces)
6262 Host_Error("Mod_Q3BSP_LoadModels: invalid face range %i : %i (%i faces)", n, n + c, loadmodel->num_surfaces);
6265 n = LittleLong(in->firstbrush);
6266 c = LittleLong(in->numbrushes);
6267 if (n < 0 || n + c > loadmodel->brush.num_brushes)
6268 Host_Error("Mod_Q3BSP_LoadModels: invalid brush range %i : %i (%i brushes)", n, n + c, loadmodel->brush.num_brushes);
6269 out->firstbrush = n;
6270 out->numbrushes = c;
6274 static void Mod_Q3BSP_LoadLeafBrushes(lump_t *l)
6280 in = (int *)(mod_base + l->fileofs);
6281 if (l->filelen % sizeof(*in))
6282 Host_Error("Mod_Q3BSP_LoadLeafBrushes: funny lump size in %s",loadmodel->name);
6283 count = l->filelen / sizeof(*in);
6284 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6286 loadmodel->brush.data_leafbrushes = out;
6287 loadmodel->brush.num_leafbrushes = count;
6289 for (i = 0;i < count;i++, in++, out++)
6291 n = LittleLong(*in);
6292 if (n < 0 || n >= loadmodel->brush.num_brushes)
6293 Host_Error("Mod_Q3BSP_LoadLeafBrushes: invalid brush index %i (%i brushes)", n, loadmodel->brush.num_brushes);
6298 static void Mod_Q3BSP_LoadLeafFaces(lump_t *l)
6304 in = (int *)(mod_base + l->fileofs);
6305 if (l->filelen % sizeof(*in))
6306 Host_Error("Mod_Q3BSP_LoadLeafFaces: funny lump size in %s",loadmodel->name);
6307 count = l->filelen / sizeof(*in);
6308 out = (int *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6310 loadmodel->brush.data_leafsurfaces = out;
6311 loadmodel->brush.num_leafsurfaces = count;
6313 for (i = 0;i < count;i++, in++, out++)
6315 n = LittleLong(*in);
6316 if (n < 0 || n >= loadmodel->num_surfaces)
6317 Host_Error("Mod_Q3BSP_LoadLeafFaces: invalid face index %i (%i faces)", n, loadmodel->num_surfaces);
6322 static void Mod_Q3BSP_LoadLeafs(lump_t *l)
6326 int i, j, n, c, count;
6328 in = (q3dleaf_t *)(mod_base + l->fileofs);
6329 if (l->filelen % sizeof(*in))
6330 Host_Error("Mod_Q3BSP_LoadLeafs: funny lump size in %s",loadmodel->name);
6331 count = l->filelen / sizeof(*in);
6332 out = (mleaf_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6334 loadmodel->brush.data_leafs = out;
6335 loadmodel->brush.num_leafs = count;
6337 for (i = 0;i < count;i++, in++, out++)
6341 out->clusterindex = LittleLong(in->clusterindex);
6342 out->areaindex = LittleLong(in->areaindex);
6343 for (j = 0;j < 3;j++)
6345 // yes the mins/maxs are ints
6346 out->mins[j] = LittleLong(in->mins[j]) - 1;
6347 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
6349 n = LittleLong(in->firstleafface);
6350 c = LittleLong(in->numleaffaces);
6351 if (n < 0 || n + c > loadmodel->brush.num_leafsurfaces)
6352 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafsurface range %i : %i (%i leafsurfaces)", n, n + c, loadmodel->brush.num_leafsurfaces);
6353 out->firstleafsurface = loadmodel->brush.data_leafsurfaces + n;
6354 out->numleafsurfaces = c;
6355 n = LittleLong(in->firstleafbrush);
6356 c = LittleLong(in->numleafbrushes);
6357 if (n < 0 || n + c > loadmodel->brush.num_leafbrushes)
6358 Host_Error("Mod_Q3BSP_LoadLeafs: invalid leafbrush range %i : %i (%i leafbrushes)", n, n + c, loadmodel->brush.num_leafbrushes);
6359 out->firstleafbrush = loadmodel->brush.data_leafbrushes + n;
6360 out->numleafbrushes = c;
6364 static void Mod_Q3BSP_LoadNodes(lump_t *l)
6370 in = (q3dnode_t *)(mod_base + l->fileofs);
6371 if (l->filelen % sizeof(*in))
6372 Host_Error("Mod_Q3BSP_LoadNodes: funny lump size in %s",loadmodel->name);
6373 count = l->filelen / sizeof(*in);
6375 Host_Error("Mod_Q3BSP_LoadNodes: missing BSP tree in %s",loadmodel->name);
6376 out = (mnode_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6378 loadmodel->brush.data_nodes = out;
6379 loadmodel->brush.num_nodes = count;
6381 for (i = 0;i < count;i++, in++, out++)
6384 n = LittleLong(in->planeindex);
6385 if (n < 0 || n >= loadmodel->brush.num_planes)
6386 Host_Error("Mod_Q3BSP_LoadNodes: invalid planeindex %i (%i planes)", n, loadmodel->brush.num_planes);
6387 out->plane = loadmodel->brush.data_planes + n;
6388 for (j = 0;j < 2;j++)
6390 n = LittleLong(in->childrenindex[j]);
6393 if (n >= loadmodel->brush.num_nodes)
6394 Host_Error("Mod_Q3BSP_LoadNodes: invalid child node index %i (%i nodes)", n, loadmodel->brush.num_nodes);
6395 out->children[j] = loadmodel->brush.data_nodes + n;
6400 if (n >= loadmodel->brush.num_leafs)
6401 Host_Error("Mod_Q3BSP_LoadNodes: invalid child leaf index %i (%i leafs)", n, loadmodel->brush.num_leafs);
6402 out->children[j] = (mnode_t *)(loadmodel->brush.data_leafs + n);
6405 for (j = 0;j < 3;j++)
6407 // yes the mins/maxs are ints
6408 out->mins[j] = LittleLong(in->mins[j]) - 1;
6409 out->maxs[j] = LittleLong(in->maxs[j]) + 1;
6413 // set the parent pointers
6414 Mod_Q1BSP_LoadNodes_RecursiveSetParent(loadmodel->brush.data_nodes, NULL);
6417 static void Mod_Q3BSP_LoadLightGrid(lump_t *l)
6420 q3dlightgrid_t *out;
6424 in = (q3dlightgrid_t *)(mod_base + l->fileofs);
6425 if (l->filelen % sizeof(*in))
6426 Host_Error("Mod_Q3BSP_LoadLightGrid: funny lump size in %s",loadmodel->name);
6427 loadmodel->brushq3.num_lightgrid_scale[0] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[0];
6428 loadmodel->brushq3.num_lightgrid_scale[1] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[1];
6429 loadmodel->brushq3.num_lightgrid_scale[2] = 1.0f / loadmodel->brushq3.num_lightgrid_cellsize[2];
6430 loadmodel->brushq3.num_lightgrid_imins[0] = (int)ceil(loadmodel->brushq3.data_models->mins[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
6431 loadmodel->brushq3.num_lightgrid_imins[1] = (int)ceil(loadmodel->brushq3.data_models->mins[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
6432 loadmodel->brushq3.num_lightgrid_imins[2] = (int)ceil(loadmodel->brushq3.data_models->mins[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
6433 loadmodel->brushq3.num_lightgrid_imaxs[0] = (int)floor(loadmodel->brushq3.data_models->maxs[0] * loadmodel->brushq3.num_lightgrid_scale[0]);
6434 loadmodel->brushq3.num_lightgrid_imaxs[1] = (int)floor(loadmodel->brushq3.data_models->maxs[1] * loadmodel->brushq3.num_lightgrid_scale[1]);
6435 loadmodel->brushq3.num_lightgrid_imaxs[2] = (int)floor(loadmodel->brushq3.data_models->maxs[2] * loadmodel->brushq3.num_lightgrid_scale[2]);
6436 loadmodel->brushq3.num_lightgrid_isize[0] = loadmodel->brushq3.num_lightgrid_imaxs[0] - loadmodel->brushq3.num_lightgrid_imins[0] + 1;
6437 loadmodel->brushq3.num_lightgrid_isize[1] = loadmodel->brushq3.num_lightgrid_imaxs[1] - loadmodel->brushq3.num_lightgrid_imins[1] + 1;
6438 loadmodel->brushq3.num_lightgrid_isize[2] = loadmodel->brushq3.num_lightgrid_imaxs[2] - loadmodel->brushq3.num_lightgrid_imins[2] + 1;
6439 count = loadmodel->brushq3.num_lightgrid_isize[0] * loadmodel->brushq3.num_lightgrid_isize[1] * loadmodel->brushq3.num_lightgrid_isize[2];
6440 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]);
6441 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]);
6443 // if lump is empty there is nothing to load, we can deal with that in the LightPoint code
6446 if (l->filelen < count * (int)sizeof(*in))
6448 Con_Printf("Mod_Q3BSP_LoadLightGrid: invalid lightgrid lump size %i bytes, should be %i bytes (%ix%ix%i)", l->filelen, (int)(count * sizeof(*in)), loadmodel->brushq3.num_lightgrid_isize[0], loadmodel->brushq3.num_lightgrid_isize[1], loadmodel->brushq3.num_lightgrid_isize[2]);
6449 return; // ignore the grid if we cannot understand it
6451 if (l->filelen != count * (int)sizeof(*in))
6452 Con_Printf("Mod_Q3BSP_LoadLightGrid: Warning: calculated lightgrid size %i bytes does not match lump size %i\n", (int)(count * sizeof(*in)), l->filelen);
6453 out = (q3dlightgrid_t *)Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
6454 loadmodel->brushq3.data_lightgrid = out;
6455 loadmodel->brushq3.num_lightgrid = count;
6456 // no swapping or validation necessary
6457 memcpy(out, in, count * (int)sizeof(*out));
6459 if(mod_q3bsp_sRGBlightmaps.integer)
6461 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
6463 // we fix the brightness consistently via lightmapscale
6467 for(i = 0; i < count; ++i)
6469 out[i].ambientrgb[0] = floor(Image_LinearFloatFromsRGB(out[i].ambientrgb[0]) * 255.0f + 0.5f);
6470 out[i].ambientrgb[1] = floor(Image_LinearFloatFromsRGB(out[i].ambientrgb[1]) * 255.0f + 0.5f);
6471 out[i].ambientrgb[2] = floor(Image_LinearFloatFromsRGB(out[i].ambientrgb[2]) * 255.0f + 0.5f);
6472 out[i].diffusergb[0] = floor(Image_LinearFloatFromsRGB(out[i].diffusergb[0]) * 255.0f + 0.5f);
6473 out[i].diffusergb[1] = floor(Image_LinearFloatFromsRGB(out[i].diffusergb[1]) * 255.0f + 0.5f);
6474 out[i].diffusergb[2] = floor(Image_LinearFloatFromsRGB(out[i].diffusergb[2]) * 255.0f + 0.5f);
6480 if(vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
6482 for(i = 0; i < count; ++i)
6484 out[i].ambientrgb[0] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].ambientrgb[0]) * 255.0f + 0.5f);
6485 out[i].ambientrgb[1] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].ambientrgb[1]) * 255.0f + 0.5f);
6486 out[i].ambientrgb[2] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].ambientrgb[2]) * 255.0f + 0.5f);
6487 out[i].diffusergb[0] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].diffusergb[0]) * 255.0f + 0.5f);
6488 out[i].diffusergb[1] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].diffusergb[1]) * 255.0f + 0.5f);
6489 out[i].diffusergb[2] = floor(Image_sRGBFloatFromLinear_Lightmap(out[i].diffusergb[2]) * 255.0f + 0.5f);
6500 static void Mod_Q3BSP_LoadPVS(lump_t *l)
6505 if (l->filelen == 0)
6508 // unvised maps often have cluster indices even without pvs, so check
6509 // leafs to find real number of clusters
6510 loadmodel->brush.num_pvsclusters = 1;
6511 for (i = 0;i < loadmodel->brush.num_leafs;i++)
6512 loadmodel->brush.num_pvsclusters = max(loadmodel->brush.num_pvsclusters, loadmodel->brush.data_leafs[i].clusterindex + 1);
6515 loadmodel->brush.num_pvsclusterbytes = (loadmodel->brush.num_pvsclusters + 7) / 8;
6516 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
6517 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
6518 memset(loadmodel->brush.data_pvsclusters, 0xFF, totalchains);
6522 in = (q3dpvs_t *)(mod_base + l->fileofs);
6524 Host_Error("Mod_Q3BSP_LoadPVS: funny lump size in %s",loadmodel->name);
6526 loadmodel->brush.num_pvsclusters = LittleLong(in->numclusters);
6527 loadmodel->brush.num_pvsclusterbytes = LittleLong(in->chainlength);
6528 if (loadmodel->brush.num_pvsclusterbytes < ((loadmodel->brush.num_pvsclusters + 7) / 8))
6529 Host_Error("Mod_Q3BSP_LoadPVS: (chainlength = %i) < ((numclusters = %i) + 7) / 8", loadmodel->brush.num_pvsclusterbytes, loadmodel->brush.num_pvsclusters);
6530 totalchains = loadmodel->brush.num_pvsclusterbytes * loadmodel->brush.num_pvsclusters;
6531 if (l->filelen < totalchains + (int)sizeof(*in))
6532 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);
6534 loadmodel->brush.data_pvsclusters = (unsigned char *)Mem_Alloc(loadmodel->mempool, totalchains);
6535 memcpy(loadmodel->brush.data_pvsclusters, (unsigned char *)(in + 1), totalchains);
6538 static void Mod_Q3BSP_LightPoint(dp_model_t *model, const vec3_t p, vec3_t ambientcolor, vec3_t diffusecolor, vec3_t diffusenormal)
6540 int i, j, k, index[3];
6541 float transformed[3], blend1, blend2, blend, stylescale = 1;
6542 q3dlightgrid_t *a, *s;
6544 // scale lighting by lightstyle[0] so that darkmode in dpmod works properly
6545 switch(vid.renderpath)
6547 case RENDERPATH_GL20:
6548 case RENDERPATH_D3D9:
6549 case RENDERPATH_D3D10:
6550 case RENDERPATH_D3D11:
6551 case RENDERPATH_SOFT:
6552 case RENDERPATH_GLES2:
6553 // LordHavoc: FIXME: is this true?
6554 stylescale = 1; // added while render
6556 case RENDERPATH_GL11:
6557 case RENDERPATH_GL13:
6558 case RENDERPATH_GLES1:
6559 stylescale = r_refdef.scene.rtlightstylevalue[0];
6563 if (!model->brushq3.num_lightgrid)
6565 ambientcolor[0] = stylescale;
6566 ambientcolor[1] = stylescale;
6567 ambientcolor[2] = stylescale;
6571 Matrix4x4_Transform(&model->brushq3.num_lightgrid_indexfromworld, p, transformed);
6572 //Matrix4x4_Print(&model->brushq3.num_lightgrid_indexfromworld);
6573 //Con_Printf("%f %f %f transformed %f %f %f clamped ", p[0], p[1], p[2], transformed[0], transformed[1], transformed[2]);
6574 transformed[0] = bound(0, transformed[0], model->brushq3.num_lightgrid_isize[0] - 1);
6575 transformed[1] = bound(0, transformed[1], model->brushq3.num_lightgrid_isize[1] - 1);
6576 transformed[2] = bound(0, transformed[2], model->brushq3.num_lightgrid_isize[2] - 1);
6577 index[0] = (int)floor(transformed[0]);
6578 index[1] = (int)floor(transformed[1]);
6579 index[2] = (int)floor(transformed[2]);
6580 //Con_Printf("%f %f %f index %i %i %i:\n", transformed[0], transformed[1], transformed[2], index[0], index[1], index[2]);
6582 // now lerp the values
6583 VectorClear(diffusenormal);
6584 a = &model->brushq3.data_lightgrid[(index[2] * model->brushq3.num_lightgrid_isize[1] + index[1]) * model->brushq3.num_lightgrid_isize[0] + index[0]];
6585 for (k = 0;k < 2;k++)
6587 blend1 = (k ? (transformed[2] - index[2]) : (1 - (transformed[2] - index[2])));
6588 if (blend1 < 0.001f || index[2] + k >= model->brushq3.num_lightgrid_isize[2])
6590 for (j = 0;j < 2;j++)
6592 blend2 = blend1 * (j ? (transformed[1] - index[1]) : (1 - (transformed[1] - index[1])));
6593 if (blend2 < 0.001f || index[1] + j >= model->brushq3.num_lightgrid_isize[1])
6595 for (i = 0;i < 2;i++)
6597 blend = blend2 * (i ? (transformed[0] - index[0]) : (1 - (transformed[0] - index[0]))) * stylescale;
6598 if (blend < 0.001f || index[0] + i >= model->brushq3.num_lightgrid_isize[0])
6600 s = a + (k * model->brushq3.num_lightgrid_isize[1] + j) * model->brushq3.num_lightgrid_isize[0] + i;
6601 VectorMA(ambientcolor, blend * (1.0f / 128.0f), s->ambientrgb, ambientcolor);
6602 VectorMA(diffusecolor, blend * (1.0f / 128.0f), s->diffusergb, diffusecolor);
6603 // this uses the mod_md3_sin table because the values are
6604 // already in the 0-255 range, the 64+ bias fetches a cosine
6605 // instead of a sine value
6606 diffusenormal[0] += blend * (mod_md3_sin[64 + s->diffuseyaw] * mod_md3_sin[s->diffusepitch]);
6607 diffusenormal[1] += blend * (mod_md3_sin[ s->diffuseyaw] * mod_md3_sin[s->diffusepitch]);
6608 diffusenormal[2] += blend * (mod_md3_sin[64 + s->diffusepitch]);
6609 //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)));
6614 // normalize the light direction before turning
6615 VectorNormalize(diffusenormal);
6616 //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]);
6619 static int Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(mnode_t *node, double p1[3], double p2[3])
6622 double midf, mid[3];
6628 // find the point distances
6629 mplane_t *plane = node->plane;
6630 if (plane->type < 3)
6632 t1 = p1[plane->type] - plane->dist;
6633 t2 = p2[plane->type] - plane->dist;
6637 t1 = DotProduct (plane->normal, p1) - plane->dist;
6638 t2 = DotProduct (plane->normal, p2) - plane->dist;
6645 node = node->children[1];
6654 node = node->children[0];
6660 midf = t1 / (t1 - t2);
6661 VectorLerp(p1, midf, p2, mid);
6663 // recurse both sides, front side first
6664 // return 2 if empty is followed by solid (hit something)
6665 // do not return 2 if both are solid or both empty,
6666 // or if start is solid and end is empty
6667 // as these degenerate cases usually indicate the eye is in solid and
6668 // should see the target point anyway
6669 ret = Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ], p1, mid);
6672 ret = Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(node->children[side ^ 1], mid, p2);
6677 return ((mleaf_t *)node)->clusterindex < 0;
6680 static qboolean Mod_Q3BSP_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end)
6682 if (model->brush.submodel || mod_q3bsp_tracelineofsight_brushes.integer)
6685 model->TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK);
6686 return trace.fraction == 1;
6690 double tracestart[3], traceend[3];
6691 VectorCopy(start, tracestart);
6692 VectorCopy(end, traceend);
6693 return !Mod_Q3BSP_TraceLineOfSight_RecursiveNodeCheck(model->brush.data_nodes, tracestart, traceend);
6697 void Mod_CollisionBIH_TracePoint(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, int hitsupercontentsmask)
6700 const bih_leaf_t *leaf;
6701 const bih_node_t *node;
6702 const colbrushf_t *brush;
6705 int nodestackpos = 0;
6706 int nodestack[1024];
6708 memset(trace, 0, sizeof(*trace));
6709 trace->fraction = 1;
6710 trace->hitsupercontentsmask = hitsupercontentsmask;
6712 bih = &model->collision_bih;
6716 nodenum = bih->rootnode;
6717 nodestack[nodestackpos++] = nodenum;
6718 while (nodestackpos)
6720 nodenum = nodestack[--nodestackpos];
6721 node = bih->nodes + nodenum;
6723 if (!BoxesOverlap(start, start, node->mins, node->maxs))
6726 if (node->type <= BIH_SPLITZ && nodestackpos+2 <= 1024)
6728 axis = node->type - BIH_SPLITX;
6729 if (start[axis] >= node->frontmin)
6730 nodestack[nodestackpos++] = node->front;
6731 if (start[axis] <= node->backmax)
6732 nodestack[nodestackpos++] = node->back;
6734 else if (node->type == BIH_UNORDERED)
6736 for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
6738 leaf = bih->leafs + node->children[axis];
6740 if (!BoxesOverlap(start, start, leaf->mins, leaf->maxs))
6746 brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
6747 Collision_TracePointBrushFloat(trace, start, brush);
6749 case BIH_COLLISIONTRIANGLE:
6750 // collision triangle - skipped because they have no volume
6752 case BIH_RENDERTRIANGLE:
6753 // render triangle - skipped because they have no volume
6761 static void Mod_CollisionBIH_TraceLineShared(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask, const bih_t *bih)
6763 const bih_leaf_t *leaf;
6764 const bih_node_t *node;
6765 const colbrushf_t *brush;
6767 const texture_t *texture;
6768 vec3_t nodebigmins, nodebigmaxs, nodestart, nodeend, sweepnodemins, sweepnodemaxs;
6769 vec_t d1, d2, d3, d4, f, nodestackline[1024][6];
6770 int axis, nodenum, nodestackpos = 0, nodestack[1024];
6775 if (VectorCompare(start, end))
6777 Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask);
6781 nodenum = bih->rootnode;
6783 memset(trace, 0, sizeof(*trace));
6784 trace->fraction = 1;
6785 trace->hitsupercontentsmask = hitsupercontentsmask;
6788 nodestackline[nodestackpos][0] = start[0];
6789 nodestackline[nodestackpos][1] = start[1];
6790 nodestackline[nodestackpos][2] = start[2];
6791 nodestackline[nodestackpos][3] = end[0];
6792 nodestackline[nodestackpos][4] = end[1];
6793 nodestackline[nodestackpos][5] = end[2];
6794 nodestack[nodestackpos++] = nodenum;
6795 while (nodestackpos)
6797 nodenum = nodestack[--nodestackpos];
6798 node = bih->nodes + nodenum;
6799 VectorCopy(nodestackline[nodestackpos], nodestart);
6800 VectorCopy(nodestackline[nodestackpos] + 3, nodeend);
6801 sweepnodemins[0] = min(nodestart[0], nodeend[0]) - 1;
6802 sweepnodemins[1] = min(nodestart[1], nodeend[1]) - 1;
6803 sweepnodemins[2] = min(nodestart[2], nodeend[2]) - 1;
6804 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + 1;
6805 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + 1;
6806 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + 1;
6807 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, node->mins, node->maxs))
6809 if (node->type <= BIH_SPLITZ && nodestackpos+2 <= 1024)
6811 // recurse children of the split
6812 axis = node->type - BIH_SPLITX;
6813 d1 = node->backmax - nodestart[axis];
6814 d2 = node->backmax - nodeend[axis];
6815 d3 = nodestart[axis] - node->frontmin;
6816 d4 = nodeend[axis] - node->frontmin;
6817 switch((d1 < 0) | ((d2 < 0) << 1) | ((d3 < 0) << 2) | ((d4 < 0) << 3))
6819 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;
6820 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;
6821 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;
6822 case 3: /* <<>> */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6823 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;
6824 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;
6825 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;
6826 case 7: /* <<<> */ f = d3 / (d3 - d4); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6827 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;
6828 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;
6829 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;
6830 case 11: /* <<>< */ f = d3 / (d3 - d4); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6831 case 12: /* >><< */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6832 case 13: /* <><< */ f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6833 case 14: /* ><<< */ f = d1 / (d1 - d2); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6834 case 15: /* <<<< */ break;
6837 else if (node->type == BIH_UNORDERED)
6839 // calculate sweep bounds for this node
6840 // copy node bounds into local variables
6841 VectorCopy(node->mins, nodebigmins);
6842 VectorCopy(node->maxs, nodebigmaxs);
6843 // clip line to this node bounds
6844 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); }
6845 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); }
6846 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); }
6847 // some of the line intersected the enlarged node box
6848 // calculate sweep bounds for this node
6849 sweepnodemins[0] = min(nodestart[0], nodeend[0]) - 1;
6850 sweepnodemins[1] = min(nodestart[1], nodeend[1]) - 1;
6851 sweepnodemins[2] = min(nodestart[2], nodeend[2]) - 1;
6852 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + 1;
6853 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + 1;
6854 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + 1;
6855 for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
6857 leaf = bih->leafs + node->children[axis];
6858 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, leaf->mins, leaf->maxs))
6863 brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
6864 Collision_TraceLineBrushFloat(trace, start, end, brush, brush);
6866 case BIH_COLLISIONTRIANGLE:
6867 if (!mod_q3bsp_curves_collisions.integer)
6869 e = model->brush.data_collisionelement3i + 3*leaf->itemindex;
6870 texture = model->data_textures + leaf->textureindex;
6871 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);
6873 case BIH_RENDERTRIANGLE:
6874 e = model->surfmesh.data_element3i + 3*leaf->itemindex;
6875 texture = model->data_textures + leaf->textureindex;
6876 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);
6884 void Mod_CollisionBIH_TraceLine(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask)
6886 if (VectorCompare(start, end))
6888 Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask);
6891 Mod_CollisionBIH_TraceLineShared(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, &model->collision_bih);
6894 void Mod_CollisionBIH_TraceBrush(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, colbrushf_t *thisbrush_start, colbrushf_t *thisbrush_end, int hitsupercontentsmask)
6897 const bih_leaf_t *leaf;
6898 const bih_node_t *node;
6899 const colbrushf_t *brush;
6901 const texture_t *texture;
6902 vec3_t start, end, startmins, startmaxs, endmins, endmaxs, mins, maxs;
6903 vec3_t nodebigmins, nodebigmaxs, nodestart, nodeend, sweepnodemins, sweepnodemaxs;
6904 vec_t d1, d2, d3, d4, f, nodestackline[1024][6];
6905 int axis, nodenum, nodestackpos = 0, nodestack[1024];
6907 if (mod_q3bsp_optimizedtraceline.integer && VectorCompare(thisbrush_start->mins, thisbrush_start->maxs) && VectorCompare(thisbrush_end->mins, thisbrush_end->maxs))
6909 if (VectorCompare(thisbrush_start->mins, thisbrush_end->mins))
6910 Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, thisbrush_start->mins, hitsupercontentsmask);
6912 Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, thisbrush_start->mins, thisbrush_end->mins, hitsupercontentsmask);
6916 bih = &model->collision_bih;
6919 nodenum = bih->rootnode;
6921 // box trace, performed as brush trace
6922 memset(trace, 0, sizeof(*trace));
6923 trace->fraction = 1;
6924 trace->hitsupercontentsmask = hitsupercontentsmask;
6926 // calculate tracebox-like parameters for efficient culling
6927 VectorMAM(0.5f, thisbrush_start->mins, 0.5f, thisbrush_start->maxs, start);
6928 VectorMAM(0.5f, thisbrush_end->mins, 0.5f, thisbrush_end->maxs, end);
6929 VectorSubtract(thisbrush_start->mins, start, startmins);
6930 VectorSubtract(thisbrush_start->maxs, start, startmaxs);
6931 VectorSubtract(thisbrush_end->mins, end, endmins);
6932 VectorSubtract(thisbrush_end->maxs, end, endmaxs);
6933 mins[0] = min(startmins[0], endmins[0]);
6934 mins[1] = min(startmins[1], endmins[1]);
6935 mins[2] = min(startmins[2], endmins[2]);
6936 maxs[0] = max(startmaxs[0], endmaxs[0]);
6937 maxs[1] = max(startmaxs[1], endmaxs[1]);
6938 maxs[2] = max(startmaxs[2], endmaxs[2]);
6941 nodestackline[nodestackpos][0] = start[0];
6942 nodestackline[nodestackpos][1] = start[1];
6943 nodestackline[nodestackpos][2] = start[2];
6944 nodestackline[nodestackpos][3] = end[0];
6945 nodestackline[nodestackpos][4] = end[1];
6946 nodestackline[nodestackpos][5] = end[2];
6947 nodestack[nodestackpos++] = nodenum;
6948 while (nodestackpos)
6950 nodenum = nodestack[--nodestackpos];
6951 node = bih->nodes + nodenum;
6952 VectorCopy(nodestackline[nodestackpos], nodestart);
6953 VectorCopy(nodestackline[nodestackpos] + 3, nodeend);
6954 sweepnodemins[0] = min(nodestart[0], nodeend[0]) + mins[0] - 1;
6955 sweepnodemins[1] = min(nodestart[1], nodeend[1]) + mins[1] - 1;
6956 sweepnodemins[2] = min(nodestart[2], nodeend[2]) + mins[2] - 1;
6957 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + maxs[0] + 1;
6958 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + maxs[1] + 1;
6959 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + maxs[2] + 1;
6960 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, node->mins, node->maxs))
6962 if (node->type <= BIH_SPLITZ && nodestackpos+2 <= 1024)
6964 // recurse children of the split
6965 axis = node->type - BIH_SPLITX;
6966 d1 = node->backmax - nodestart[axis] - mins[axis];
6967 d2 = node->backmax - nodeend[axis] - mins[axis];
6968 d3 = nodestart[axis] - node->frontmin + maxs[axis];
6969 d4 = nodeend[axis] - node->frontmin + maxs[axis];
6970 switch((d1 < 0) | ((d2 < 0) << 1) | ((d3 < 0) << 2) | ((d4 < 0) << 3))
6972 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;
6973 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;
6974 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;
6975 case 3: /* <<>> */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6976 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;
6977 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;
6978 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;
6979 case 7: /* <<<> */ f = d3 / (d3 - d4); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6980 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;
6981 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;
6982 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;
6983 case 11: /* <<>< */ f = d3 / (d3 - d4); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->front; break;
6984 case 12: /* >><< */ VectorCopy(nodestart, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6985 case 13: /* <><< */ f = d1 / (d1 - d2); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos]); VectorCopy( nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6986 case 14: /* ><<< */ f = d1 / (d1 - d2); VectorCopy(nodestart, nodestackline[nodestackpos]); VectorLerp(nodestart, f, nodeend, nodestackline[nodestackpos] + 3); nodestack[nodestackpos++] = node->back; break;
6987 case 15: /* <<<< */ break;
6990 else if (node->type == BIH_UNORDERED)
6992 // calculate sweep bounds for this node
6993 // copy node bounds into local variables and expand to get Minkowski Sum of the two shapes
6994 VectorSubtract(node->mins, maxs, nodebigmins);
6995 VectorSubtract(node->maxs, mins, nodebigmaxs);
6996 // clip line to this node bounds
6997 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); }
6998 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); }
6999 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); }
7000 // some of the line intersected the enlarged node box
7001 // calculate sweep bounds for this node
7002 sweepnodemins[0] = min(nodestart[0], nodeend[0]) + mins[0] - 1;
7003 sweepnodemins[1] = min(nodestart[1], nodeend[1]) + mins[1] - 1;
7004 sweepnodemins[2] = min(nodestart[2], nodeend[2]) + mins[2] - 1;
7005 sweepnodemaxs[0] = max(nodestart[0], nodeend[0]) + maxs[0] + 1;
7006 sweepnodemaxs[1] = max(nodestart[1], nodeend[1]) + maxs[1] + 1;
7007 sweepnodemaxs[2] = max(nodestart[2], nodeend[2]) + maxs[2] + 1;
7008 for (axis = 0;axis < BIH_MAXUNORDEREDCHILDREN && node->children[axis] >= 0;axis++)
7010 leaf = bih->leafs + node->children[axis];
7011 if (!BoxesOverlap(sweepnodemins, sweepnodemaxs, leaf->mins, leaf->maxs))
7016 brush = model->brush.data_brushes[leaf->itemindex].colbrushf;
7017 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
7019 case BIH_COLLISIONTRIANGLE:
7020 if (!mod_q3bsp_curves_collisions.integer)
7022 e = model->brush.data_collisionelement3i + 3*leaf->itemindex;
7023 texture = model->data_textures + leaf->textureindex;
7024 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);
7026 case BIH_RENDERTRIANGLE:
7027 e = model->surfmesh.data_element3i + 3*leaf->itemindex;
7028 texture = model->data_textures + leaf->textureindex;
7029 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);
7037 void Mod_CollisionBIH_TraceBox(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
7039 colboxbrushf_t thisbrush_start, thisbrush_end;
7040 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
7042 // box trace, performed as brush trace
7043 VectorAdd(start, boxmins, boxstartmins);
7044 VectorAdd(start, boxmaxs, boxstartmaxs);
7045 VectorAdd(end, boxmins, boxendmins);
7046 VectorAdd(end, boxmaxs, boxendmaxs);
7047 Collision_BrushForBox(&thisbrush_start, boxstartmins, boxstartmaxs, 0, 0, NULL);
7048 Collision_BrushForBox(&thisbrush_end, boxendmins, boxendmaxs, 0, 0, NULL);
7049 Mod_CollisionBIH_TraceBrush(model, frameblend, skeleton, trace, &thisbrush_start.brush, &thisbrush_end.brush, hitsupercontentsmask);
7053 int Mod_CollisionBIH_PointSuperContents(struct model_s *model, int frame, const vec3_t point)
7056 Mod_CollisionBIH_TracePoint(model, NULL, NULL, &trace, point, 0);
7057 return trace.startsupercontents;
7060 qboolean Mod_CollisionBIH_TraceLineOfSight(struct model_s *model, const vec3_t start, const vec3_t end)
7063 Mod_CollisionBIH_TraceLine(model, NULL, NULL, &trace, start, end, SUPERCONTENTS_VISBLOCKERMASK);
7064 return trace.fraction == 1;
7067 void Mod_CollisionBIH_TracePoint_Mesh(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, int hitsupercontentsmask)
7070 // broken - needs to be modified to count front faces and backfaces to figure out if it is in solid
7072 int hitsupercontents;
7073 VectorSet(end, start[0], start[1], model->normalmins[2]);
7075 memset(trace, 0, sizeof(*trace));
7076 trace->fraction = 1;
7077 trace->hitsupercontentsmask = hitsupercontentsmask;
7079 Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask);
7080 hitsupercontents = trace->hitsupercontents;
7081 memset(trace, 0, sizeof(*trace));
7082 trace->fraction = 1;
7083 trace->hitsupercontentsmask = hitsupercontentsmask;
7084 trace->startsupercontents = hitsupercontents;
7088 int Mod_CollisionBIH_PointSuperContents_Mesh(struct model_s *model, int frame, const vec3_t start)
7091 // broken - needs to be modified to count front faces and backfaces to figure out if it is in solid
7094 VectorSet(end, start[0], start[1], model->normalmins[2]);
7095 memset(&trace, 0, sizeof(trace));
7097 trace.hitsupercontentsmask = 0;
7098 Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask);
7099 return trace.hitsupercontents;
7105 static void Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace_t *trace, dp_model_t *model, mnode_t *node, const vec3_t point, int markframe)
7110 // find which leaf the point is in
7112 node = node->children[(node->plane->type < 3 ? point[node->plane->type] : DotProduct(point, node->plane->normal)) < node->plane->dist];
7113 // point trace the brushes
7114 leaf = (mleaf_t *)node;
7115 for (i = 0;i < leaf->numleafbrushes;i++)
7117 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
7118 if (brush && brush->markframe != markframe && BoxesOverlap(point, point, brush->mins, brush->maxs))
7120 brush->markframe = markframe;
7121 Collision_TracePointBrushFloat(trace, point, brush);
7124 // can't do point traces on curves (they have no thickness)
7127 static void Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace_t *trace, dp_model_t *model, mnode_t *node, const vec3_t start, const vec3_t end, vec_t startfrac, vec_t endfrac, const vec3_t linestart, const vec3_t lineend, int markframe, const vec3_t segmentmins, const vec3_t segmentmaxs)
7129 int i, startside, endside;
7130 float dist1, dist2, midfrac, mid[3], nodesegmentmins[3], nodesegmentmaxs[3];
7132 msurface_t *surface;
7135 // walk the tree until we hit a leaf, recursing for any split cases
7139 if (!BoxesOverlap(segmentmins, segmentmaxs, node->mins, node->maxs))
7141 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[0], start, end, startfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
7142 node = node->children[1];
7144 // abort if this part of the bsp tree can not be hit by this trace
7145 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
7147 plane = node->plane;
7148 // axial planes are much more common than non-axial, so an optimized
7149 // axial case pays off here
7150 if (plane->type < 3)
7152 dist1 = start[plane->type] - plane->dist;
7153 dist2 = end[plane->type] - plane->dist;
7157 dist1 = DotProduct(start, plane->normal) - plane->dist;
7158 dist2 = DotProduct(end, plane->normal) - plane->dist;
7160 startside = dist1 < 0;
7161 endside = dist2 < 0;
7162 if (startside == endside)
7164 // most of the time the line fragment is on one side of the plane
7165 node = node->children[startside];
7169 // line crosses node plane, split the line
7170 dist1 = PlaneDiff(linestart, plane);
7171 dist2 = PlaneDiff(lineend, plane);
7172 midfrac = dist1 / (dist1 - dist2);
7173 VectorLerp(linestart, midfrac, lineend, mid);
7174 // take the near side first
7175 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[startside], start, mid, startfrac, midfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
7176 // if we found an impact on the front side, don't waste time
7177 // exploring the far side
7178 if (midfrac <= trace->fraction)
7179 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, node->children[endside], mid, end, midfrac, endfrac, linestart, lineend, markframe, segmentmins, segmentmaxs);
7184 // abort if this part of the bsp tree can not be hit by this trace
7185 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
7188 nodesegmentmins[0] = min(start[0], end[0]) - 1;
7189 nodesegmentmins[1] = min(start[1], end[1]) - 1;
7190 nodesegmentmins[2] = min(start[2], end[2]) - 1;
7191 nodesegmentmaxs[0] = max(start[0], end[0]) + 1;
7192 nodesegmentmaxs[1] = max(start[1], end[1]) + 1;
7193 nodesegmentmaxs[2] = max(start[2], end[2]) + 1;
7194 // line trace the brushes
7195 leaf = (mleaf_t *)node;
7197 if (!BoxesOverlap(segmentmins, segmentmaxs, leaf->mins, leaf->maxs))
7200 for (i = 0;i < leaf->numleafbrushes;i++)
7202 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
7203 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
7205 brush->markframe = markframe;
7206 Collision_TraceLineBrushFloat(trace, linestart, lineend, brush, brush);
7209 // can't do point traces on curves (they have no thickness)
7210 if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer && !VectorCompare(start, end))
7212 // line trace the curves
7213 for (i = 0;i < leaf->numleafsurfaces;i++)
7215 surface = model->data_surfaces + leaf->firstleafsurface[i];
7216 if (surface->num_collisiontriangles && surface->deprecatedq3collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
7218 surface->deprecatedq3collisionmarkframe = markframe;
7219 Collision_TraceLineTriangleMeshFloat(trace, linestart, lineend, surface->num_collisiontriangles, surface->deprecatedq3data_collisionelement3i, surface->deprecatedq3data_collisionvertex3f, surface->deprecatedq3num_collisionbboxstride, surface->deprecatedq3data_collisionbbox6f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
7225 static void Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace_t *trace, dp_model_t *model, mnode_t *node, const colbrushf_t *thisbrush_start, const colbrushf_t *thisbrush_end, int markframe, const vec3_t segmentmins, const vec3_t segmentmaxs)
7231 msurface_t *surface;
7233 float nodesegmentmins[3], nodesegmentmaxs[3];
7234 // walk the tree until we hit a leaf, recursing for any split cases
7238 if (!BoxesOverlap(segmentmins, segmentmaxs, node->mins, node->maxs))
7240 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
7241 node = node->children[1];
7243 // abort if this part of the bsp tree can not be hit by this trace
7244 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
7246 plane = node->plane;
7247 // axial planes are much more common than non-axial, so an optimized
7248 // axial case pays off here
7249 if (plane->type < 3)
7251 // this is an axial plane, compare bounding box directly to it and
7252 // recurse sides accordingly
7253 // recurse down node sides
7254 // use an inlined axial BoxOnPlaneSide to slightly reduce overhead
7255 //sides = BoxOnPlaneSide(nodesegmentmins, nodesegmentmaxs, plane);
7256 //sides = ((segmentmaxs[plane->type] >= plane->dist) | ((segmentmins[plane->type] < plane->dist) << 1));
7257 sides = ((segmentmaxs[plane->type] >= plane->dist) + ((segmentmins[plane->type] < plane->dist) * 2));
7261 // this is a non-axial plane, so check if the start and end boxes
7262 // are both on one side of the plane to handle 'diagonal' cases
7263 sides = BoxOnPlaneSide(thisbrush_start->mins, thisbrush_start->maxs, plane) | BoxOnPlaneSide(thisbrush_end->mins, thisbrush_end->maxs, plane);
7267 // segment crosses plane
7268 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, node->children[0], thisbrush_start, thisbrush_end, markframe, segmentmins, segmentmaxs);
7271 // if sides == 0 then the trace itself is bogus (Not A Number values),
7272 // in this case we simply pretend the trace hit nothing
7274 return; // ERROR: NAN bounding box!
7275 // take whichever side the segment box is on
7276 node = node->children[sides - 1];
7279 // abort if this part of the bsp tree can not be hit by this trace
7280 // if (!(node->combinedsupercontents & trace->hitsupercontentsmask))
7282 nodesegmentmins[0] = max(segmentmins[0], node->mins[0] - 1);
7283 nodesegmentmins[1] = max(segmentmins[1], node->mins[1] - 1);
7284 nodesegmentmins[2] = max(segmentmins[2], node->mins[2] - 1);
7285 nodesegmentmaxs[0] = min(segmentmaxs[0], node->maxs[0] + 1);
7286 nodesegmentmaxs[1] = min(segmentmaxs[1], node->maxs[1] + 1);
7287 nodesegmentmaxs[2] = min(segmentmaxs[2], node->maxs[2] + 1);
7289 leaf = (mleaf_t *)node;
7291 if (!BoxesOverlap(segmentmins, segmentmaxs, leaf->mins, leaf->maxs))
7294 for (i = 0;i < leaf->numleafbrushes;i++)
7296 brush = model->brush.data_brushes[leaf->firstleafbrush[i]].colbrushf;
7297 if (brush && brush->markframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, brush->mins, brush->maxs))
7299 brush->markframe = markframe;
7300 Collision_TraceBrushBrushFloat(trace, thisbrush_start, thisbrush_end, brush, brush);
7303 if (leaf->containscollisionsurfaces && mod_q3bsp_curves_collisions.integer)
7305 for (i = 0;i < leaf->numleafsurfaces;i++)
7307 surface = model->data_surfaces + leaf->firstleafsurface[i];
7308 if (surface->num_collisiontriangles && surface->deprecatedq3collisionmarkframe != markframe && BoxesOverlap(nodesegmentmins, nodesegmentmaxs, surface->mins, surface->maxs))
7310 surface->deprecatedq3collisionmarkframe = markframe;
7311 Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, surface->num_collisiontriangles, surface->deprecatedq3data_collisionelement3i, surface->deprecatedq3data_collisionvertex3f, surface->deprecatedq3num_collisionbboxstride, surface->deprecatedq3data_collisionbbox6f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
7318 static int markframe = 0;
7320 static void Mod_Q3BSP_TracePoint(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, int hitsupercontentsmask)
7324 memset(trace, 0, sizeof(*trace));
7325 trace->fraction = 1;
7326 trace->hitsupercontentsmask = hitsupercontentsmask;
7327 if (mod_collision_bih.integer)
7328 Mod_CollisionBIH_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask);
7329 else if (model->brush.submodel)
7331 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
7332 if (brush->colbrushf)
7333 Collision_TracePointBrushFloat(trace, start, brush->colbrushf);
7336 Mod_Q3BSP_TracePoint_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, ++markframe);
7339 static void Mod_Q3BSP_TraceLine(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask)
7342 float segmentmins[3], segmentmaxs[3];
7343 msurface_t *surface;
7346 if (VectorCompare(start, end))
7348 Mod_Q3BSP_TracePoint(model, frameblend, skeleton, trace, start, hitsupercontentsmask);
7352 memset(trace, 0, sizeof(*trace));
7353 trace->fraction = 1;
7354 trace->hitsupercontentsmask = hitsupercontentsmask;
7355 segmentmins[0] = min(start[0], end[0]) - 1;
7356 segmentmins[1] = min(start[1], end[1]) - 1;
7357 segmentmins[2] = min(start[2], end[2]) - 1;
7358 segmentmaxs[0] = max(start[0], end[0]) + 1;
7359 segmentmaxs[1] = max(start[1], end[1]) + 1;
7360 segmentmaxs[2] = max(start[2], end[2]) + 1;
7361 if (mod_collision_bih.integer)
7362 Mod_CollisionBIH_TraceLine(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask);
7363 else if (model->brush.submodel)
7365 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
7366 if (brush->colbrushf && BoxesOverlap(segmentmins, segmentmaxs, brush->colbrushf->mins, brush->colbrushf->maxs))
7367 Collision_TraceLineBrushFloat(trace, start, end, brush->colbrushf, brush->colbrushf);
7368 if (mod_q3bsp_curves_collisions.integer)
7369 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
7370 if (surface->num_collisiontriangles && BoxesOverlap(segmentmins, segmentmaxs, surface->mins, surface->maxs))
7371 Collision_TraceLineTriangleMeshFloat(trace, start, end, surface->num_collisiontriangles, surface->deprecatedq3data_collisionelement3i, surface->deprecatedq3data_collisionvertex3f, surface->deprecatedq3num_collisionbboxstride, surface->deprecatedq3data_collisionbbox6f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
7374 Mod_Q3BSP_TraceLine_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, end, 0, 1, start, end, ++markframe, segmentmins, segmentmaxs);
7377 static void Mod_Q3BSP_TraceBrush(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, colbrushf_t *start, colbrushf_t *end, int hitsupercontentsmask)
7379 float segmentmins[3], segmentmaxs[3];
7381 msurface_t *surface;
7384 if (mod_q3bsp_optimizedtraceline.integer && VectorCompare(start->mins, start->maxs) && VectorCompare(end->mins, end->maxs))
7386 if (VectorCompare(start->mins, end->mins))
7387 Mod_Q3BSP_TracePoint(model, frameblend, skeleton, trace, start->mins, hitsupercontentsmask);
7389 Mod_Q3BSP_TraceLine(model, frameblend, skeleton, trace, start->mins, end->mins, hitsupercontentsmask);
7393 // box trace, performed as brush trace
7394 memset(trace, 0, sizeof(*trace));
7395 trace->fraction = 1;
7396 trace->hitsupercontentsmask = hitsupercontentsmask;
7397 segmentmins[0] = min(start->mins[0], end->mins[0]) - 1;
7398 segmentmins[1] = min(start->mins[1], end->mins[1]) - 1;
7399 segmentmins[2] = min(start->mins[2], end->mins[2]) - 1;
7400 segmentmaxs[0] = max(start->maxs[0], end->maxs[0]) + 1;
7401 segmentmaxs[1] = max(start->maxs[1], end->maxs[1]) + 1;
7402 segmentmaxs[2] = max(start->maxs[2], end->maxs[2]) + 1;
7403 if (mod_collision_bih.integer)
7404 Mod_CollisionBIH_TraceBrush(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask);
7405 else if (model->brush.submodel)
7407 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
7408 if (brush->colbrushf && BoxesOverlap(segmentmins, segmentmaxs, brush->colbrushf->mins, brush->colbrushf->maxs))
7409 Collision_TraceBrushBrushFloat(trace, start, end, brush->colbrushf, brush->colbrushf);
7410 if (mod_q3bsp_curves_collisions.integer)
7411 for (i = 0, surface = model->data_surfaces + model->firstmodelsurface;i < model->nummodelsurfaces;i++, surface++)
7412 if (surface->num_collisiontriangles && BoxesOverlap(segmentmins, segmentmaxs, surface->mins, surface->maxs))
7413 Collision_TraceBrushTriangleMeshFloat(trace, start, end, surface->num_collisiontriangles, surface->deprecatedq3data_collisionelement3i, surface->deprecatedq3data_collisionvertex3f, surface->deprecatedq3num_collisionbboxstride, surface->deprecatedq3data_collisionbbox6f, surface->texture->supercontents, surface->texture->surfaceflags, surface->texture, segmentmins, segmentmaxs);
7416 Mod_Q3BSP_TraceBrush_RecursiveBSPNode(trace, model, model->brush.data_nodes, start, end, ++markframe, segmentmins, segmentmaxs);
7419 static void Mod_Q3BSP_TraceBox(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
7421 colboxbrushf_t thisbrush_start, thisbrush_end;
7422 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
7424 // box trace, performed as brush trace
7425 VectorAdd(start, boxmins, boxstartmins);
7426 VectorAdd(start, boxmaxs, boxstartmaxs);
7427 VectorAdd(end, boxmins, boxendmins);
7428 VectorAdd(end, boxmaxs, boxendmaxs);
7429 Collision_BrushForBox(&thisbrush_start, boxstartmins, boxstartmaxs, 0, 0, NULL);
7430 Collision_BrushForBox(&thisbrush_end, boxendmins, boxendmaxs, 0, 0, NULL);
7431 Mod_Q3BSP_TraceBrush(model, frameblend, skeleton, trace, &thisbrush_start.brush, &thisbrush_end.brush, hitsupercontentsmask);
7434 static int Mod_Q3BSP_PointSuperContents(struct model_s *model, int frame, const vec3_t point)
7437 int supercontents = 0;
7439 if (mod_collision_bih.integer)
7441 supercontents = Mod_CollisionBIH_PointSuperContents(model, frame, point);
7443 // test if the point is inside each brush
7444 else if (model->brush.submodel)
7446 // submodels are effectively one leaf
7447 for (i = 0, brush = model->brush.data_brushes + model->firstmodelbrush;i < model->nummodelbrushes;i++, brush++)
7448 if (brush->colbrushf && Collision_PointInsideBrushFloat(point, brush->colbrushf))
7449 supercontents |= brush->colbrushf->supercontents;
7453 mnode_t *node = model->brush.data_nodes;
7455 // find which leaf the point is in
7457 node = node->children[(node->plane->type < 3 ? point[node->plane->type] : DotProduct(point, node->plane->normal)) < node->plane->dist];
7458 leaf = (mleaf_t *)node;
7459 // now check the brushes in the leaf
7460 for (i = 0;i < leaf->numleafbrushes;i++)
7462 brush = model->brush.data_brushes + leaf->firstleafbrush[i];
7463 if (brush->colbrushf && Collision_PointInsideBrushFloat(point, brush->colbrushf))
7464 supercontents |= brush->colbrushf->supercontents;
7467 return supercontents;
7470 void Mod_CollisionBIH_TraceLineAgainstSurfaces(dp_model_t *model, const frameblend_t *frameblend, const skeleton_t *skeleton, trace_t *trace, const vec3_t start, const vec3_t end, int hitsupercontentsmask)
7472 Mod_CollisionBIH_TraceLineShared(model, frameblend, skeleton, trace, start, end, hitsupercontentsmask, &model->render_bih);
7476 bih_t *Mod_MakeCollisionBIH(dp_model_t *model, qboolean userendersurfaces, bih_t *out)
7484 int nummodelbrushes = model->nummodelbrushes;
7485 int nummodelsurfaces = model->nummodelsurfaces;
7487 const int *collisionelement3i;
7488 const float *collisionvertex3f;
7489 const int *renderelement3i;
7490 const float *rendervertex3f;
7491 bih_leaf_t *bihleafs;
7492 bih_node_t *bihnodes;
7494 int *temp_leafsortscratch;
7495 const msurface_t *surface;
7496 const q3mbrush_t *brush;
7498 // find out how many BIH leaf nodes we need
7500 if (userendersurfaces)
7502 for (j = 0, surface = model->data_surfaces + model->firstmodelsurface;j < nummodelsurfaces;j++, surface++)
7503 bihnumleafs += surface->num_triangles;
7507 for (brushindex = 0, brush = model->brush.data_brushes + brushindex+model->firstmodelbrush;brushindex < nummodelbrushes;brushindex++, brush++)
7508 if (brush->colbrushf)
7510 for (j = 0, surface = model->data_surfaces + model->firstmodelsurface;j < nummodelsurfaces;j++, surface++)
7512 if (surface->texture->basematerialflags & MATERIALFLAG_MESHCOLLISIONS)
7513 bihnumleafs += surface->num_triangles + surface->num_collisiontriangles;
7515 bihnumleafs += surface->num_collisiontriangles;
7522 // allocate the memory for the BIH leaf nodes
7523 bihleafs = (bih_leaf_t *)Mem_Alloc(loadmodel->mempool, sizeof(bih_leaf_t) * bihnumleafs);
7525 // now populate the BIH leaf nodes
7528 // add render surfaces
7529 renderelement3i = model->surfmesh.data_element3i;
7530 rendervertex3f = model->surfmesh.data_vertex3f;
7531 for (j = 0, surface = model->data_surfaces + model->firstmodelsurface;j < nummodelsurfaces;j++, surface++)
7533 for (triangleindex = 0, e = renderelement3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
7535 if (!userendersurfaces && !(surface->texture->basematerialflags & MATERIALFLAG_MESHCOLLISIONS))
7537 bihleafs[bihleafindex].type = BIH_RENDERTRIANGLE;
7538 bihleafs[bihleafindex].textureindex = surface->texture - model->data_textures;
7539 bihleafs[bihleafindex].surfaceindex = surface - model->data_surfaces;
7540 bihleafs[bihleafindex].itemindex = triangleindex+surface->num_firsttriangle;
7541 bihleafs[bihleafindex].mins[0] = min(rendervertex3f[3*e[0]+0], min(rendervertex3f[3*e[1]+0], rendervertex3f[3*e[2]+0])) - 1;
7542 bihleafs[bihleafindex].mins[1] = min(rendervertex3f[3*e[0]+1], min(rendervertex3f[3*e[1]+1], rendervertex3f[3*e[2]+1])) - 1;
7543 bihleafs[bihleafindex].mins[2] = min(rendervertex3f[3*e[0]+2], min(rendervertex3f[3*e[1]+2], rendervertex3f[3*e[2]+2])) - 1;
7544 bihleafs[bihleafindex].maxs[0] = max(rendervertex3f[3*e[0]+0], max(rendervertex3f[3*e[1]+0], rendervertex3f[3*e[2]+0])) + 1;
7545 bihleafs[bihleafindex].maxs[1] = max(rendervertex3f[3*e[0]+1], max(rendervertex3f[3*e[1]+1], rendervertex3f[3*e[2]+1])) + 1;
7546 bihleafs[bihleafindex].maxs[2] = max(rendervertex3f[3*e[0]+2], max(rendervertex3f[3*e[1]+2], rendervertex3f[3*e[2]+2])) + 1;
7551 if (!userendersurfaces)
7553 // add collision brushes
7554 for (brushindex = 0, brush = model->brush.data_brushes + brushindex+model->firstmodelbrush;brushindex < nummodelbrushes;brushindex++, brush++)
7556 if (!brush->colbrushf)
7558 bihleafs[bihleafindex].type = BIH_BRUSH;
7559 bihleafs[bihleafindex].textureindex = brush->texture - model->data_textures;
7560 bihleafs[bihleafindex].surfaceindex = -1;
7561 bihleafs[bihleafindex].itemindex = brushindex+model->firstmodelbrush;
7562 VectorCopy(brush->colbrushf->mins, bihleafs[bihleafindex].mins);
7563 VectorCopy(brush->colbrushf->maxs, bihleafs[bihleafindex].maxs);
7567 // add collision surfaces
7568 collisionelement3i = model->brush.data_collisionelement3i;
7569 collisionvertex3f = model->brush.data_collisionvertex3f;
7570 for (j = 0, surface = model->data_surfaces + model->firstmodelsurface;j < nummodelsurfaces;j++, surface++)
7572 for (triangleindex = 0, e = collisionelement3i + 3*surface->num_firstcollisiontriangle;triangleindex < surface->num_collisiontriangles;triangleindex++, e += 3)
7574 bihleafs[bihleafindex].type = BIH_COLLISIONTRIANGLE;
7575 bihleafs[bihleafindex].textureindex = surface->texture - model->data_textures;
7576 bihleafs[bihleafindex].surfaceindex = surface - model->data_surfaces;
7577 bihleafs[bihleafindex].itemindex = triangleindex+surface->num_firstcollisiontriangle;
7578 bihleafs[bihleafindex].mins[0] = min(collisionvertex3f[3*e[0]+0], min(collisionvertex3f[3*e[1]+0], collisionvertex3f[3*e[2]+0])) - 1;
7579 bihleafs[bihleafindex].mins[1] = min(collisionvertex3f[3*e[0]+1], min(collisionvertex3f[3*e[1]+1], collisionvertex3f[3*e[2]+1])) - 1;
7580 bihleafs[bihleafindex].mins[2] = min(collisionvertex3f[3*e[0]+2], min(collisionvertex3f[3*e[1]+2], collisionvertex3f[3*e[2]+2])) - 1;
7581 bihleafs[bihleafindex].maxs[0] = max(collisionvertex3f[3*e[0]+0], max(collisionvertex3f[3*e[1]+0], collisionvertex3f[3*e[2]+0])) + 1;
7582 bihleafs[bihleafindex].maxs[1] = max(collisionvertex3f[3*e[0]+1], max(collisionvertex3f[3*e[1]+1], collisionvertex3f[3*e[2]+1])) + 1;
7583 bihleafs[bihleafindex].maxs[2] = max(collisionvertex3f[3*e[0]+2], max(collisionvertex3f[3*e[1]+2], collisionvertex3f[3*e[2]+2])) + 1;
7589 // allocate buffers for the produced and temporary data
7590 bihmaxnodes = bihnumleafs + 1;
7591 bihnodes = (bih_node_t *)Mem_Alloc(loadmodel->mempool, sizeof(bih_node_t) * bihmaxnodes);
7592 temp_leafsort = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int) * bihnumleafs * 2);
7593 temp_leafsortscratch = temp_leafsort + bihnumleafs;
7596 BIH_Build(out, bihnumleafs, bihleafs, bihmaxnodes, bihnodes, temp_leafsort, temp_leafsortscratch);
7598 // we're done with the temporary data
7599 Mem_Free(temp_leafsort);
7601 // resize the BIH nodes array if it over-allocated
7602 if (out->maxnodes > out->numnodes)
7604 out->maxnodes = out->numnodes;
7605 out->nodes = (bih_node_t *)Mem_Realloc(loadmodel->mempool, out->nodes, out->numnodes * sizeof(bih_node_t));
7611 static int Mod_Q3BSP_SuperContentsFromNativeContents(dp_model_t *model, int nativecontents)
7613 int supercontents = 0;
7614 if (nativecontents & CONTENTSQ3_SOLID)
7615 supercontents |= SUPERCONTENTS_SOLID;
7616 if (nativecontents & CONTENTSQ3_WATER)
7617 supercontents |= SUPERCONTENTS_WATER;
7618 if (nativecontents & CONTENTSQ3_SLIME)
7619 supercontents |= SUPERCONTENTS_SLIME;
7620 if (nativecontents & CONTENTSQ3_LAVA)
7621 supercontents |= SUPERCONTENTS_LAVA;
7622 if (nativecontents & CONTENTSQ3_BODY)
7623 supercontents |= SUPERCONTENTS_BODY;
7624 if (nativecontents & CONTENTSQ3_CORPSE)
7625 supercontents |= SUPERCONTENTS_CORPSE;
7626 if (nativecontents & CONTENTSQ3_NODROP)
7627 supercontents |= SUPERCONTENTS_NODROP;
7628 if (nativecontents & CONTENTSQ3_PLAYERCLIP)
7629 supercontents |= SUPERCONTENTS_PLAYERCLIP;
7630 if (nativecontents & CONTENTSQ3_MONSTERCLIP)
7631 supercontents |= SUPERCONTENTS_MONSTERCLIP;
7632 if (nativecontents & CONTENTSQ3_DONOTENTER)
7633 supercontents |= SUPERCONTENTS_DONOTENTER;
7634 if (nativecontents & CONTENTSQ3_BOTCLIP)
7635 supercontents |= SUPERCONTENTS_BOTCLIP;
7636 if (!(nativecontents & CONTENTSQ3_TRANSLUCENT))
7637 supercontents |= SUPERCONTENTS_OPAQUE;
7638 return supercontents;
7641 static int Mod_Q3BSP_NativeContentsFromSuperContents(dp_model_t *model, int supercontents)
7643 int nativecontents = 0;
7644 if (supercontents & SUPERCONTENTS_SOLID)
7645 nativecontents |= CONTENTSQ3_SOLID;
7646 if (supercontents & SUPERCONTENTS_WATER)
7647 nativecontents |= CONTENTSQ3_WATER;
7648 if (supercontents & SUPERCONTENTS_SLIME)
7649 nativecontents |= CONTENTSQ3_SLIME;
7650 if (supercontents & SUPERCONTENTS_LAVA)
7651 nativecontents |= CONTENTSQ3_LAVA;
7652 if (supercontents & SUPERCONTENTS_BODY)
7653 nativecontents |= CONTENTSQ3_BODY;
7654 if (supercontents & SUPERCONTENTS_CORPSE)
7655 nativecontents |= CONTENTSQ3_CORPSE;
7656 if (supercontents & SUPERCONTENTS_NODROP)
7657 nativecontents |= CONTENTSQ3_NODROP;
7658 if (supercontents & SUPERCONTENTS_PLAYERCLIP)
7659 nativecontents |= CONTENTSQ3_PLAYERCLIP;
7660 if (supercontents & SUPERCONTENTS_MONSTERCLIP)
7661 nativecontents |= CONTENTSQ3_MONSTERCLIP;
7662 if (supercontents & SUPERCONTENTS_DONOTENTER)
7663 nativecontents |= CONTENTSQ3_DONOTENTER;
7664 if (supercontents & SUPERCONTENTS_BOTCLIP)
7665 nativecontents |= CONTENTSQ3_BOTCLIP;
7666 if (!(supercontents & SUPERCONTENTS_OPAQUE))
7667 nativecontents |= CONTENTSQ3_TRANSLUCENT;
7668 return nativecontents;
7671 static void Mod_Q3BSP_RecursiveFindNumLeafs(mnode_t *node)
7676 Mod_Q3BSP_RecursiveFindNumLeafs(node->children[0]);
7677 node = node->children[1];
7679 numleafs = ((mleaf_t *)node - loadmodel->brush.data_leafs) + 1;
7680 if (loadmodel->brush.num_leafs < numleafs)
7681 loadmodel->brush.num_leafs = numleafs;
7684 static void Mod_Q3BSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
7687 q3dheader_t *header;
7688 float corner[3], yawradius, modelradius;
7690 mod->modeldatatypestring = "Q3BSP";
7692 mod->type = mod_brushq3;
7693 mod->brush.ishlbsp = false;
7694 mod->brush.isbsp2rmqe = false;
7695 mod->brush.isbsp2 = false;
7696 mod->brush.isq2bsp = false;
7697 mod->brush.isq3bsp = true;
7698 mod->numframes = 2; // although alternate textures are not supported it is annoying to complain about no such frame 1
7701 header = (q3dheader_t *)buffer;
7702 if((char *) bufferend < (char *) buffer + sizeof(q3dheader_t))
7703 Host_Error("Mod_Q3BSP_Load: %s is smaller than its header", mod->name);
7705 i = LittleLong(header->version);
7706 if (i != Q3BSPVERSION && i != Q3BSPVERSION_IG && i != Q3BSPVERSION_LIVE)
7707 Host_Error("Mod_Q3BSP_Load: %s has wrong version number (%i, should be %i)", mod->name, i, Q3BSPVERSION);
7709 mod->soundfromcenter = true;
7710 mod->TraceBox = Mod_Q3BSP_TraceBox;
7711 mod->TraceBrush = Mod_Q3BSP_TraceBrush;
7712 mod->TraceLine = Mod_Q3BSP_TraceLine;
7713 mod->TracePoint = Mod_Q3BSP_TracePoint;
7714 mod->PointSuperContents = Mod_Q3BSP_PointSuperContents;
7715 mod->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
7716 mod->brush.TraceLineOfSight = Mod_Q3BSP_TraceLineOfSight;
7717 mod->brush.SuperContentsFromNativeContents = Mod_Q3BSP_SuperContentsFromNativeContents;
7718 mod->brush.NativeContentsFromSuperContents = Mod_Q3BSP_NativeContentsFromSuperContents;
7719 mod->brush.GetPVS = Mod_Q1BSP_GetPVS;
7720 mod->brush.FatPVS = Mod_Q1BSP_FatPVS;
7721 mod->brush.BoxTouchingPVS = Mod_Q1BSP_BoxTouchingPVS;
7722 mod->brush.BoxTouchingLeafPVS = Mod_Q1BSP_BoxTouchingLeafPVS;
7723 mod->brush.BoxTouchingVisibleLeafs = Mod_Q1BSP_BoxTouchingVisibleLeafs;
7724 mod->brush.FindBoxClusters = Mod_Q1BSP_FindBoxClusters;
7725 mod->brush.LightPoint = Mod_Q3BSP_LightPoint;
7726 mod->brush.FindNonSolidLocation = Mod_Q1BSP_FindNonSolidLocation;
7727 mod->brush.AmbientSoundLevelsForPoint = NULL;
7728 mod->brush.RoundUpToHullSize = NULL;
7729 mod->brush.PointInLeaf = Mod_Q1BSP_PointInLeaf;
7730 mod->Draw = R_Q1BSP_Draw;
7731 mod->DrawDepth = R_Q1BSP_DrawDepth;
7732 mod->DrawDebug = R_Q1BSP_DrawDebug;
7733 mod->DrawPrepass = R_Q1BSP_DrawPrepass;
7734 mod->GetLightInfo = R_Q1BSP_GetLightInfo;
7735 mod->CompileShadowMap = R_Q1BSP_CompileShadowMap;
7736 mod->DrawShadowMap = R_Q1BSP_DrawShadowMap;
7737 mod->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
7738 mod->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
7739 mod->DrawLight = R_Q1BSP_DrawLight;
7741 mod_base = (unsigned char *)header;
7743 // swap all the lumps
7744 header->ident = LittleLong(header->ident);
7745 header->version = LittleLong(header->version);
7746 lumps = (header->version == Q3BSPVERSION_LIVE) ? Q3HEADER_LUMPS_LIVE : Q3HEADER_LUMPS;
7747 for (i = 0;i < lumps;i++)
7749 j = (header->lumps[i].fileofs = LittleLong(header->lumps[i].fileofs));
7750 if((char *) bufferend < (char *) buffer + j)
7751 Host_Error("Mod_Q3BSP_Load: %s has a lump that starts outside the file!", mod->name);
7752 j += (header->lumps[i].filelen = LittleLong(header->lumps[i].filelen));
7753 if((char *) bufferend < (char *) buffer + j)
7754 Host_Error("Mod_Q3BSP_Load: %s has a lump that ends outside the file!", mod->name);
7757 * NO, do NOT clear them!
7758 * they contain actual data referenced by other stuff.
7759 * Instead, before using the advertisements lump, check header->versio
7761 * Sorry, but otherwise it breaks memory of the first lump.
7762 for (i = lumps;i < Q3HEADER_LUMPS_MAX;i++)
7764 header->lumps[i].fileofs = 0;
7765 header->lumps[i].filelen = 0;
7769 mod->brush.qw_md4sum = 0;
7770 mod->brush.qw_md4sum2 = 0;
7771 for (i = 0;i < lumps;i++)
7773 if (i == Q3LUMP_ENTITIES)
7775 mod->brush.qw_md4sum ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
7776 if (i == Q3LUMP_PVS || i == Q3LUMP_LEAFS || i == Q3LUMP_NODES)
7778 mod->brush.qw_md4sum2 ^= Com_BlockChecksum(mod_base + header->lumps[i].fileofs, header->lumps[i].filelen);
7780 // all this checksumming can take a while, so let's send keepalives here too
7781 CL_KeepaliveMessage(false);
7784 Mod_Q3BSP_LoadEntities(&header->lumps[Q3LUMP_ENTITIES]);
7785 Mod_Q3BSP_LoadTextures(&header->lumps[Q3LUMP_TEXTURES]);
7786 Mod_Q3BSP_LoadPlanes(&header->lumps[Q3LUMP_PLANES]);
7787 if (header->version == Q3BSPVERSION_IG)
7788 Mod_Q3BSP_LoadBrushSides_IG(&header->lumps[Q3LUMP_BRUSHSIDES]);
7790 Mod_Q3BSP_LoadBrushSides(&header->lumps[Q3LUMP_BRUSHSIDES]);
7791 Mod_Q3BSP_LoadBrushes(&header->lumps[Q3LUMP_BRUSHES]);
7792 Mod_Q3BSP_LoadEffects(&header->lumps[Q3LUMP_EFFECTS]);
7793 Mod_Q3BSP_LoadVertices(&header->lumps[Q3LUMP_VERTICES]);
7794 Mod_Q3BSP_LoadTriangles(&header->lumps[Q3LUMP_TRIANGLES]);
7795 Mod_Q3BSP_LoadLightmaps(&header->lumps[Q3LUMP_LIGHTMAPS], &header->lumps[Q3LUMP_FACES]);
7796 Mod_Q3BSP_LoadFaces(&header->lumps[Q3LUMP_FACES]);
7797 Mod_Q3BSP_LoadModels(&header->lumps[Q3LUMP_MODELS]);
7798 Mod_Q3BSP_LoadLeafBrushes(&header->lumps[Q3LUMP_LEAFBRUSHES]);
7799 Mod_Q3BSP_LoadLeafFaces(&header->lumps[Q3LUMP_LEAFFACES]);
7800 Mod_Q3BSP_LoadLeafs(&header->lumps[Q3LUMP_LEAFS]);
7801 Mod_Q3BSP_LoadNodes(&header->lumps[Q3LUMP_NODES]);
7802 Mod_Q3BSP_LoadLightGrid(&header->lumps[Q3LUMP_LIGHTGRID]);
7803 Mod_Q3BSP_LoadPVS(&header->lumps[Q3LUMP_PVS]);
7804 loadmodel->brush.numsubmodels = loadmodel->brushq3.num_models;
7806 // the MakePortals code works fine on the q3bsp data as well
7807 if (mod_bsp_portalize.integer)
7808 Mod_Q1BSP_MakePortals();
7810 // FIXME: shader alpha should replace r_wateralpha support in q3bsp
7811 loadmodel->brush.supportwateralpha = true;
7813 // make a single combined shadow mesh to allow optimized shadow volume creation
7814 Mod_Q1BSP_CreateShadowMesh(loadmodel);
7816 loadmodel->brush.num_leafs = 0;
7817 Mod_Q3BSP_RecursiveFindNumLeafs(loadmodel->brush.data_nodes);
7819 if (loadmodel->brush.numsubmodels)
7820 loadmodel->brush.submodels = (dp_model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
7823 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
7828 // duplicate the basic information
7829 dpsnprintf(name, sizeof(name), "*%i", i);
7830 mod = Mod_FindName(name, loadmodel->name);
7831 // copy the base model to this one
7833 // rename the clone back to its proper name
7834 strlcpy(mod->name, name, sizeof(mod->name));
7835 mod->brush.parentmodel = loadmodel;
7836 // textures and memory belong to the main model
7837 mod->texturepool = NULL;
7838 mod->mempool = NULL;
7839 mod->brush.GetPVS = NULL;
7840 mod->brush.FatPVS = NULL;
7841 mod->brush.BoxTouchingPVS = NULL;
7842 mod->brush.BoxTouchingLeafPVS = NULL;
7843 mod->brush.BoxTouchingVisibleLeafs = NULL;
7844 mod->brush.FindBoxClusters = NULL;
7845 mod->brush.LightPoint = NULL;
7846 mod->brush.AmbientSoundLevelsForPoint = NULL;
7848 mod->brush.submodel = i;
7849 if (loadmodel->brush.submodels)
7850 loadmodel->brush.submodels[i] = mod;
7852 // make the model surface list (used by shadowing/lighting)
7853 mod->firstmodelsurface = mod->brushq3.data_models[i].firstface;
7854 mod->nummodelsurfaces = mod->brushq3.data_models[i].numfaces;
7855 mod->firstmodelbrush = mod->brushq3.data_models[i].firstbrush;
7856 mod->nummodelbrushes = mod->brushq3.data_models[i].numbrushes;
7857 mod->sortedmodelsurfaces = (int *)Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->sortedmodelsurfaces));
7858 Mod_MakeSortedSurfaces(mod);
7860 VectorCopy(mod->brushq3.data_models[i].mins, mod->normalmins);
7861 VectorCopy(mod->brushq3.data_models[i].maxs, mod->normalmaxs);
7862 // enlarge the bounding box to enclose all geometry of this model,
7863 // because q3map2 sometimes lies (mostly to affect the lightgrid),
7864 // which can in turn mess up the farclip (as well as culling when
7865 // outside the level - an unimportant concern)
7867 //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]);
7868 for (j = 0;j < mod->nummodelsurfaces;j++)
7870 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
7871 const float *v = mod->surfmesh.data_vertex3f + 3 * surface->num_firstvertex;
7873 if (!surface->num_vertices)
7875 for (k = 0;k < surface->num_vertices;k++, v += 3)
7877 mod->normalmins[0] = min(mod->normalmins[0], v[0]);
7878 mod->normalmins[1] = min(mod->normalmins[1], v[1]);
7879 mod->normalmins[2] = min(mod->normalmins[2], v[2]);
7880 mod->normalmaxs[0] = max(mod->normalmaxs[0], v[0]);
7881 mod->normalmaxs[1] = max(mod->normalmaxs[1], v[1]);
7882 mod->normalmaxs[2] = max(mod->normalmaxs[2], v[2]);
7885 //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]);
7886 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
7887 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
7888 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
7889 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
7890 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
7891 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
7892 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
7893 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
7894 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
7895 mod->yawmins[2] = mod->normalmins[2];
7896 mod->yawmaxs[2] = mod->normalmaxs[2];
7897 mod->radius = modelradius;
7898 mod->radius2 = modelradius * modelradius;
7900 // this gets altered below if sky or water is used
7901 mod->DrawSky = NULL;
7902 mod->DrawAddWaterPlanes = NULL;
7904 for (j = 0;j < mod->nummodelsurfaces;j++)
7905 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->basematerialflags & MATERIALFLAG_SKY)
7907 if (j < mod->nummodelsurfaces)
7908 mod->DrawSky = R_Q1BSP_DrawSky;
7910 for (j = 0;j < mod->nummodelsurfaces;j++)
7911 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
7913 if (j < mod->nummodelsurfaces)
7914 mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
7916 Mod_MakeCollisionBIH(mod, false, &mod->collision_bih);
7917 Mod_MakeCollisionBIH(mod, true, &mod->render_bih);
7919 // generate VBOs and other shared data before cloning submodels
7924 if (mod_q3bsp_sRGBlightmaps.integer)
7926 if (vid_sRGB.integer && vid_sRGB_fallback.integer && !vid.sRGB3D)
7928 // actually we do in sRGB fallback with sRGB lightmaps: Image_sRGBFloatFromLinear_Lightmap(Image_LinearFloatFromsRGBFloat(x))
7929 // neutral point is at Image_sRGBFloatFromLinearFloat(0.5)
7930 // so we need to map Image_sRGBFloatFromLinearFloat(0.5) to 0.5
7931 // factor is 0.5 / Image_sRGBFloatFromLinearFloat(0.5)
7932 //loadmodel->lightmapscale *= 0.679942f; // fixes neutral level
7934 else // if this is NOT set, regular rendering looks right by this requirement anyway
7937 // we want color 1 to do the same as without sRGB
7938 // so, we want to map 1 to Image_LinearFloatFromsRGBFloat(2) instead of to 2
7939 loadmodel->lightmapscale *= 2.476923f; // fixes max level
7942 // neutral level 0.5 gets uploaded as sRGB and becomes Image_LinearFloatFromsRGBFloat(0.5)
7943 // we need to undo that
7944 loadmodel->lightmapscale *= 2.336f; // fixes neutral level
7948 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);
7951 void Mod_IBSP_Load(dp_model_t *mod, void *buffer, void *bufferend)
7953 int i = LittleLong(((int *)buffer)[1]);
7954 if (i == Q3BSPVERSION || i == Q3BSPVERSION_IG || i == Q3BSPVERSION_LIVE)
7955 Mod_Q3BSP_Load(mod,buffer, bufferend);
7956 else if (i == Q2BSPVERSION)
7957 Mod_Q2BSP_Load(mod,buffer, bufferend);
7959 Host_Error("Mod_IBSP_Load: unknown/unsupported version %i", i);
7962 void Mod_MAP_Load(dp_model_t *mod, void *buffer, void *bufferend)
7964 Host_Error("Mod_MAP_Load: not yet implemented");
7967 typedef struct objvertex_s
7978 static unsigned char nobsp_pvs[1] = {1};
7980 void Mod_OBJ_Load(dp_model_t *mod, void *buffer, void *bufferend)
7982 const char *textbase = (char *)buffer, *text = textbase;
7986 char materialname[MAX_QPATH];
7987 int i, j, l, numvertices, firstvertex, firsttriangle, elementindex, vertexindex, surfacevertices, surfacetriangles, surfaceelements, submodelindex = 0;
7988 int index1, index2, index3;
7989 objvertex_t vfirst, vprev, vcurrent;
7992 int numtriangles = 0;
7993 int maxtriangles = 0;
7994 objvertex_t *vertices = NULL;
7996 int maxtextures = 0, numtextures = 0, textureindex = 0;
7997 int maxv = 0, numv = 1;
7998 int maxvt = 0, numvt = 1;
7999 int maxvn = 0, numvn = 1;
8000 char *texturenames = NULL;
8001 float dist, modelradius, modelyawradius, yawradius;
8008 objvertex_t *thisvertex = NULL;
8009 int vertexhashindex;
8010 int *vertexhashtable = NULL;
8011 objvertex_t *vertexhashdata = NULL;
8012 objvertex_t *vdata = NULL;
8013 int vertexhashsize = 0;
8014 int vertexhashcount = 0;
8015 skinfile_t *skinfiles = NULL;
8016 unsigned char *data = NULL;
8017 int *submodelfirstsurface;
8018 msurface_t *surface;
8019 msurface_t *tempsurfaces;
8021 memset(&vfirst, 0, sizeof(vfirst));
8022 memset(&vprev, 0, sizeof(vprev));
8023 memset(&vcurrent, 0, sizeof(vcurrent));
8025 dpsnprintf(materialname, sizeof(materialname), "%s", loadmodel->name);
8027 loadmodel->modeldatatypestring = "OBJ";
8029 loadmodel->type = mod_obj;
8030 loadmodel->soundfromcenter = true;
8031 loadmodel->TraceBox = Mod_CollisionBIH_TraceBox;
8032 loadmodel->TraceBrush = Mod_CollisionBIH_TraceBrush;
8033 loadmodel->TraceLine = Mod_CollisionBIH_TraceLine;
8034 loadmodel->TracePoint = Mod_CollisionBIH_TracePoint_Mesh;
8035 loadmodel->TraceLineAgainstSurfaces = Mod_CollisionBIH_TraceLine;
8036 loadmodel->PointSuperContents = Mod_CollisionBIH_PointSuperContents_Mesh;
8037 loadmodel->brush.TraceLineOfSight = NULL;
8038 loadmodel->brush.SuperContentsFromNativeContents = NULL;
8039 loadmodel->brush.NativeContentsFromSuperContents = NULL;
8040 loadmodel->brush.GetPVS = NULL;
8041 loadmodel->brush.FatPVS = NULL;
8042 loadmodel->brush.BoxTouchingPVS = NULL;
8043 loadmodel->brush.BoxTouchingLeafPVS = NULL;
8044 loadmodel->brush.BoxTouchingVisibleLeafs = NULL;
8045 loadmodel->brush.FindBoxClusters = NULL;
8046 loadmodel->brush.LightPoint = NULL;
8047 loadmodel->brush.FindNonSolidLocation = NULL;
8048 loadmodel->brush.AmbientSoundLevelsForPoint = NULL;
8049 loadmodel->brush.RoundUpToHullSize = NULL;
8050 loadmodel->brush.PointInLeaf = NULL;
8051 loadmodel->Draw = R_Q1BSP_Draw;
8052 loadmodel->DrawDepth = R_Q1BSP_DrawDepth;
8053 loadmodel->DrawDebug = R_Q1BSP_DrawDebug;
8054 loadmodel->DrawPrepass = R_Q1BSP_DrawPrepass;
8055 loadmodel->GetLightInfo = R_Q1BSP_GetLightInfo;
8056 loadmodel->CompileShadowMap = R_Q1BSP_CompileShadowMap;
8057 loadmodel->DrawShadowMap = R_Q1BSP_DrawShadowMap;
8058 loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
8059 loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
8060 loadmodel->DrawLight = R_Q1BSP_DrawLight;
8062 skinfiles = Mod_LoadSkinFiles();
8063 if (loadmodel->numskins < 1)
8064 loadmodel->numskins = 1;
8066 // make skinscenes for the skins (no groups)
8067 loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
8068 for (i = 0;i < loadmodel->numskins;i++)
8070 loadmodel->skinscenes[i].firstframe = i;
8071 loadmodel->skinscenes[i].framecount = 1;
8072 loadmodel->skinscenes[i].loop = true;
8073 loadmodel->skinscenes[i].framerate = 10;
8079 // we always have model 0, i.e. the first "submodel"
8080 loadmodel->brush.numsubmodels = 1;
8082 // parse the OBJ text now
8085 static char emptyarg[1] = "";
8090 for (linelen = 0;text[linelen] && text[linelen] != '\r' && text[linelen] != '\n';linelen++)
8091 line[linelen] = text[linelen];
8093 for (argc = 0;argc < 4;argc++)
8094 argv[argc] = emptyarg;
8097 while (*s == ' ' || *s == '\t')
8107 while (*s == ' ' || *s == '\t')
8117 if (argv[0][0] == '#')
8119 if (!strcmp(argv[0], "v"))
8123 maxv = max(maxv * 2, 1024);
8124 v = (float *)Mem_Realloc(tempmempool, v, maxv * sizeof(float[3]));
8126 if(mod_obj_orientation.integer)
8128 v[numv*3+0] = atof(argv[1]);
8129 v[numv*3+2] = atof(argv[2]);
8130 v[numv*3+1] = atof(argv[3]);
8134 v[numv*3+0] = atof(argv[1]);
8135 v[numv*3+1] = atof(argv[2]);
8136 v[numv*3+2] = atof(argv[3]);
8140 else if (!strcmp(argv[0], "vt"))
8144 maxvt = max(maxvt * 2, 1024);
8145 vt = (float *)Mem_Realloc(tempmempool, vt, maxvt * sizeof(float[2]));
8147 vt[numvt*2+0] = atof(argv[1]);
8148 vt[numvt*2+1] = 1-atof(argv[2]);
8151 else if (!strcmp(argv[0], "vn"))
8155 maxvn = max(maxvn * 2, 1024);
8156 vn = (float *)Mem_Realloc(tempmempool, vn, maxvn * sizeof(float[3]));
8158 if(mod_obj_orientation.integer)
8160 vn[numvn*3+0] = atof(argv[1]);
8161 vn[numvn*3+2] = atof(argv[2]);
8162 vn[numvn*3+1] = atof(argv[3]);
8166 vn[numvn*3+0] = atof(argv[1]);
8167 vn[numvn*3+1] = atof(argv[2]);
8168 vn[numvn*3+2] = atof(argv[3]);
8172 else if (!strcmp(argv[0], "f"))
8176 if (maxtextures <= numtextures)
8178 maxtextures = max(maxtextures * 2, 256);
8179 texturenames = (char *)Mem_Realloc(loadmodel->mempool, texturenames, maxtextures * MAX_QPATH);
8181 textureindex = numtextures++;
8182 strlcpy(texturenames + textureindex*MAX_QPATH, loadmodel->name, MAX_QPATH);
8184 for (j = 1;j < argc;j++)
8186 index1 = atoi(argv[j]);
8187 while(argv[j][0] && argv[j][0] != '/')
8191 index2 = atoi(argv[j]);
8192 while(argv[j][0] && argv[j][0] != '/')
8196 index3 = atoi(argv[j]);
8197 // negative refers to a recent vertex
8198 // zero means not specified
8199 // positive means an absolute vertex index
8201 index1 = numv - index1;
8203 index2 = numvt - index2;
8205 index3 = numvn - index3;
8206 vcurrent.nextindex = -1;
8207 vcurrent.textureindex = textureindex;
8208 vcurrent.submodelindex = submodelindex;
8209 if (v && index1 >= 0 && index1 < numv)
8210 VectorCopy(v + 3*index1, vcurrent.v);
8211 if (vt && index2 >= 0 && index2 < numvt)
8212 Vector2Copy(vt + 2*index2, vcurrent.vt);
8213 if (vn && index3 >= 0 && index3 < numvn)
8214 VectorCopy(vn + 3*index3, vcurrent.vn);
8215 if (numtriangles == 0)
8217 VectorCopy(vcurrent.v, mins);
8218 VectorCopy(vcurrent.v, maxs);
8222 mins[0] = min(mins[0], vcurrent.v[0]);
8223 mins[1] = min(mins[1], vcurrent.v[1]);
8224 mins[2] = min(mins[2], vcurrent.v[2]);
8225 maxs[0] = max(maxs[0], vcurrent.v[0]);
8226 maxs[1] = max(maxs[1], vcurrent.v[1]);
8227 maxs[2] = max(maxs[2], vcurrent.v[2]);
8233 if (maxtriangles <= numtriangles)
8235 maxtriangles = max(maxtriangles * 2, 32768);
8236 vertices = (objvertex_t*)Mem_Realloc(loadmodel->mempool, vertices, maxtriangles * sizeof(objvertex_t[3]));
8238 if(mod_obj_orientation.integer)
8240 vertices[numtriangles*3+0] = vfirst;
8241 vertices[numtriangles*3+1] = vprev;
8242 vertices[numtriangles*3+2] = vcurrent;
8246 vertices[numtriangles*3+0] = vfirst;
8247 vertices[numtriangles*3+2] = vprev;
8248 vertices[numtriangles*3+1] = vcurrent;
8255 else if (!strcmp(argv[0], "o") || !strcmp(argv[0], "g"))
8257 submodelindex = atof(argv[1]);
8258 loadmodel->brush.numsubmodels = max(submodelindex + 1, loadmodel->brush.numsubmodels);
8260 else if (!strcmp(argv[0], "usemtl"))
8262 for (i = 0;i < numtextures;i++)
8263 if (!strcmp(texturenames+i*MAX_QPATH, argv[1]))
8265 if (i < numtextures)
8269 if (maxtextures <= numtextures)
8271 maxtextures = max(maxtextures * 2, 256);
8272 texturenames = (char *)Mem_Realloc(loadmodel->mempool, texturenames, maxtextures * MAX_QPATH);
8274 textureindex = numtextures++;
8275 strlcpy(texturenames + textureindex*MAX_QPATH, argv[1], MAX_QPATH);
8280 // now that we have the OBJ data loaded as-is, we can convert it
8282 // copy the model bounds, then enlarge the yaw and rotated bounds according to radius
8283 VectorCopy(mins, loadmodel->normalmins);
8284 VectorCopy(maxs, loadmodel->normalmaxs);
8285 dist = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
8286 modelyawradius = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
8287 modelyawradius = dist*dist+modelyawradius*modelyawradius;
8288 modelradius = max(fabs(loadmodel->normalmins[2]), fabs(loadmodel->normalmaxs[2]));
8289 modelradius = modelyawradius + modelradius * modelradius;
8290 modelyawradius = sqrt(modelyawradius);
8291 modelradius = sqrt(modelradius);
8292 loadmodel->yawmins[0] = loadmodel->yawmins[1] = -modelyawradius;
8293 loadmodel->yawmins[2] = loadmodel->normalmins[2];
8294 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelyawradius;
8295 loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
8296 loadmodel->rotatedmins[0] = loadmodel->rotatedmins[1] = loadmodel->rotatedmins[2] = -modelradius;
8297 loadmodel->rotatedmaxs[0] = loadmodel->rotatedmaxs[1] = loadmodel->rotatedmaxs[2] = modelradius;
8298 loadmodel->radius = modelradius;
8299 loadmodel->radius2 = modelradius * modelradius;
8301 // allocate storage for triangles
8302 loadmodel->surfmesh.data_element3i = (int *)Mem_Alloc(loadmodel->mempool, numtriangles * sizeof(int[3]));
8303 // allocate vertex hash structures to build an optimal vertex subset
8304 vertexhashsize = numtriangles*2;
8305 vertexhashtable = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int) * vertexhashsize);
8306 memset(vertexhashtable, 0xFF, sizeof(int) * vertexhashsize);
8307 vertexhashdata = (objvertex_t *)Mem_Alloc(loadmodel->mempool, sizeof(*vertexhashdata) * numtriangles*3);
8308 vertexhashcount = 0;
8310 // gather surface stats for assigning vertex/triangle ranges
8314 loadmodel->num_surfaces = 0;
8315 // allocate storage for the worst case number of surfaces, later we resize
8316 tempsurfaces = (msurface_t *)Mem_Alloc(loadmodel->mempool, numtextures * loadmodel->brush.numsubmodels * sizeof(msurface_t));
8317 submodelfirstsurface = (int *)Mem_Alloc(loadmodel->mempool, (loadmodel->brush.numsubmodels+1) * sizeof(int));
8318 surface = tempsurfaces;
8319 for (submodelindex = 0;submodelindex < loadmodel->brush.numsubmodels;submodelindex++)
8321 submodelfirstsurface[submodelindex] = loadmodel->num_surfaces;
8322 for (textureindex = 0;textureindex < numtextures;textureindex++)
8324 for (vertexindex = 0;vertexindex < numtriangles*3;vertexindex++)
8326 thisvertex = vertices + vertexindex;
8327 if (thisvertex->submodelindex == submodelindex && thisvertex->textureindex == textureindex)
8330 // skip the surface creation if there are no triangles for it
8331 if (vertexindex == numtriangles*3)
8333 // create a surface for these vertices
8334 surfacevertices = 0;
8335 surfaceelements = 0;
8336 // we hack in a texture index in the surface to be fixed up later...
8337 surface->texture = (texture_t *)((size_t)textureindex);
8338 // calculate bounds as we go
8339 VectorCopy(thisvertex->v, surface->mins);
8340 VectorCopy(thisvertex->v, surface->maxs);
8341 for (;vertexindex < numtriangles*3;vertexindex++)
8343 thisvertex = vertices + vertexindex;
8344 if (thisvertex->submodelindex != submodelindex)
8346 if (thisvertex->textureindex != textureindex)
8348 // add vertex to surface bounds
8349 surface->mins[0] = min(surface->mins[0], thisvertex->v[0]);
8350 surface->mins[1] = min(surface->mins[1], thisvertex->v[1]);
8351 surface->mins[2] = min(surface->mins[2], thisvertex->v[2]);
8352 surface->maxs[0] = max(surface->maxs[0], thisvertex->v[0]);
8353 surface->maxs[1] = max(surface->maxs[1], thisvertex->v[1]);
8354 surface->maxs[2] = max(surface->maxs[2], thisvertex->v[2]);
8355 // add the vertex if it is not found in the merged set, and
8356 // get its index (triangle element) for the surface
8357 vertexhashindex = (unsigned int)(thisvertex->v[0] * 3571 + thisvertex->v[0] * 1777 + thisvertex->v[0] * 457) % (unsigned int)vertexhashsize;
8358 for (i = vertexhashtable[vertexhashindex];i >= 0;i = vertexhashdata[i].nextindex)
8360 vdata = vertexhashdata + i;
8361 if (vdata->submodelindex == thisvertex->submodelindex && vdata->textureindex == thisvertex->textureindex && VectorCompare(thisvertex->v, vdata->v) && VectorCompare(thisvertex->vn, vdata->vn) && Vector2Compare(thisvertex->vt, vdata->vt))
8366 i = vertexhashcount++;
8367 vdata = vertexhashdata + i;
8368 *vdata = *thisvertex;
8369 vdata->nextindex = vertexhashtable[vertexhashindex];
8370 vertexhashtable[vertexhashindex] = i;
8373 loadmodel->surfmesh.data_element3i[elementindex++] = i;
8376 surfacetriangles = surfaceelements / 3;
8377 surface->num_vertices = surfacevertices;
8378 surface->num_triangles = surfacetriangles;
8379 surface->num_firstvertex = firstvertex;
8380 surface->num_firsttriangle = firsttriangle;
8381 firstvertex += surface->num_vertices;
8382 firsttriangle += surface->num_triangles;
8384 loadmodel->num_surfaces++;
8387 submodelfirstsurface[submodelindex] = loadmodel->num_surfaces;
8388 numvertices = firstvertex;
8389 loadmodel->data_surfaces = (msurface_t *)Mem_Realloc(loadmodel->mempool, tempsurfaces, loadmodel->num_surfaces * sizeof(msurface_t));
8390 tempsurfaces = NULL;
8392 // allocate storage for final mesh data
8393 loadmodel->num_textures = numtextures * loadmodel->numskins;
8394 loadmodel->num_texturesperskin = numtextures;
8395 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) + (r_enableshadowvolumes.integer ? numtriangles * sizeof(int[3]) : 0) + numvertices * sizeof(float[14]) + loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
8396 loadmodel->brush.submodels = (dp_model_t **)data;data += loadmodel->brush.numsubmodels * sizeof(dp_model_t *);
8397 loadmodel->sortedmodelsurfaces = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
8398 loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
8399 loadmodel->surfmesh.num_vertices = numvertices;
8400 loadmodel->surfmesh.num_triangles = numtriangles;
8401 if (r_enableshadowvolumes.integer)
8402 loadmodel->surfmesh.data_neighbor3i = (int *)data;data += numtriangles * sizeof(int[3]);
8403 loadmodel->surfmesh.data_vertex3f = (float *)data;data += numvertices * sizeof(float[3]);
8404 loadmodel->surfmesh.data_svector3f = (float *)data;data += numvertices * sizeof(float[3]);
8405 loadmodel->surfmesh.data_tvector3f = (float *)data;data += numvertices * sizeof(float[3]);
8406 loadmodel->surfmesh.data_normal3f = (float *)data;data += numvertices * sizeof(float[3]);
8407 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += numvertices * sizeof(float[2]);
8408 if (loadmodel->surfmesh.num_vertices <= 65536)
8409 loadmodel->surfmesh.data_element3s = (unsigned short *)data;data += loadmodel->surfmesh.num_triangles * sizeof(unsigned short[3]);
8411 for (j = 0;j < loadmodel->surfmesh.num_vertices;j++)
8413 VectorCopy(vertexhashdata[j].v, loadmodel->surfmesh.data_vertex3f + 3*j);
8414 VectorCopy(vertexhashdata[j].vn, loadmodel->surfmesh.data_normal3f + 3*j);
8415 Vector2Copy(vertexhashdata[j].vt, loadmodel->surfmesh.data_texcoordtexture2f + 2*j);
8418 // load the textures
8419 for (textureindex = 0;textureindex < numtextures;textureindex++)
8420 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + textureindex, skinfiles, texturenames + textureindex*MAX_QPATH, texturenames + textureindex*MAX_QPATH);
8421 Mod_FreeSkinFiles(skinfiles);
8423 // set the surface textures to their real values now that we loaded them...
8424 for (i = 0;i < loadmodel->num_surfaces;i++)
8425 loadmodel->data_surfaces[i].texture = loadmodel->data_textures + (size_t)loadmodel->data_surfaces[i].texture;
8429 Mem_Free(texturenames);
8433 Mem_Free(vertexhashtable);
8434 Mem_Free(vertexhashdata);
8436 // make a single combined shadow mesh to allow optimized shadow volume creation
8437 Mod_Q1BSP_CreateShadowMesh(loadmodel);
8439 // compute all the mesh information that was not loaded from the file
8440 if (loadmodel->surfmesh.data_element3s)
8441 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
8442 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
8443 Mod_ValidateElements(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles, 0, loadmodel->surfmesh.num_vertices, __FILE__, __LINE__);
8444 // generate normals if the file did not have them
8445 if (!VectorLength2(loadmodel->surfmesh.data_normal3f))
8446 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);
8447 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);
8448 if (loadmodel->surfmesh.data_neighbor3i)
8449 Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
8451 // if this is a worldmodel and has no BSP tree, create a fake one for the purpose
8452 loadmodel->brush.num_visleafs = 1;
8453 loadmodel->brush.num_leafs = 1;
8454 loadmodel->brush.num_nodes = 0;
8455 loadmodel->brush.num_leafsurfaces = loadmodel->num_surfaces;
8456 loadmodel->brush.data_leafs = (mleaf_t *)Mem_Alloc(loadmodel->mempool, loadmodel->brush.num_leafs * sizeof(mleaf_t));
8457 loadmodel->brush.data_nodes = (mnode_t *)loadmodel->brush.data_leafs;
8458 loadmodel->brush.num_pvsclusters = 1;
8459 loadmodel->brush.num_pvsclusterbytes = 1;
8460 loadmodel->brush.data_pvsclusters = nobsp_pvs;
8461 //if (loadmodel->num_nodes) loadmodel->data_nodes = (mnode_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_nodes * sizeof(mnode_t));
8462 //loadmodel->data_leafsurfaces = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->num_leafsurfaces * sizeof(int));
8463 loadmodel->brush.data_leafsurfaces = loadmodel->sortedmodelsurfaces;
8464 VectorCopy(loadmodel->normalmins, loadmodel->brush.data_leafs->mins);
8465 VectorCopy(loadmodel->normalmaxs, loadmodel->brush.data_leafs->maxs);
8466 loadmodel->brush.data_leafs->combinedsupercontents = 0; // FIXME?
8467 loadmodel->brush.data_leafs->clusterindex = 0;
8468 loadmodel->brush.data_leafs->areaindex = 0;
8469 loadmodel->brush.data_leafs->numleafsurfaces = loadmodel->brush.num_leafsurfaces;
8470 loadmodel->brush.data_leafs->firstleafsurface = loadmodel->brush.data_leafsurfaces;
8471 loadmodel->brush.data_leafs->numleafbrushes = 0;
8472 loadmodel->brush.data_leafs->firstleafbrush = NULL;
8473 loadmodel->brush.supportwateralpha = true;
8475 if (loadmodel->brush.numsubmodels)
8476 loadmodel->brush.submodels = (dp_model_t **)Mem_Alloc(loadmodel->mempool, loadmodel->brush.numsubmodels * sizeof(dp_model_t *));
8479 for (i = 0;i < loadmodel->brush.numsubmodels;i++)
8484 // duplicate the basic information
8485 dpsnprintf(name, sizeof(name), "*%i", i);
8486 mod = Mod_FindName(name, loadmodel->name);
8487 // copy the base model to this one
8489 // rename the clone back to its proper name
8490 strlcpy(mod->name, name, sizeof(mod->name));
8491 mod->brush.parentmodel = loadmodel;
8492 // textures and memory belong to the main model
8493 mod->texturepool = NULL;
8494 mod->mempool = NULL;
8495 mod->brush.GetPVS = NULL;
8496 mod->brush.FatPVS = NULL;
8497 mod->brush.BoxTouchingPVS = NULL;
8498 mod->brush.BoxTouchingLeafPVS = NULL;
8499 mod->brush.BoxTouchingVisibleLeafs = NULL;
8500 mod->brush.FindBoxClusters = NULL;
8501 mod->brush.LightPoint = NULL;
8502 mod->brush.AmbientSoundLevelsForPoint = NULL;
8504 mod->brush.submodel = i;
8505 if (loadmodel->brush.submodels)
8506 loadmodel->brush.submodels[i] = mod;
8508 // make the model surface list (used by shadowing/lighting)
8509 mod->firstmodelsurface = submodelfirstsurface[i];
8510 mod->nummodelsurfaces = submodelfirstsurface[i+1] - submodelfirstsurface[i];
8511 mod->firstmodelbrush = 0;
8512 mod->nummodelbrushes = 0;
8513 mod->sortedmodelsurfaces = loadmodel->sortedmodelsurfaces + mod->firstmodelsurface;
8514 Mod_MakeSortedSurfaces(mod);
8516 VectorClear(mod->normalmins);
8517 VectorClear(mod->normalmaxs);
8519 for (j = 0;j < mod->nummodelsurfaces;j++)
8521 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
8522 const float *v = mod->surfmesh.data_vertex3f + 3 * surface->num_firstvertex;
8524 if (!surface->num_vertices)
8529 VectorCopy(v, mod->normalmins);
8530 VectorCopy(v, mod->normalmaxs);
8532 for (k = 0;k < surface->num_vertices;k++, v += 3)
8534 mod->normalmins[0] = min(mod->normalmins[0], v[0]);
8535 mod->normalmins[1] = min(mod->normalmins[1], v[1]);
8536 mod->normalmins[2] = min(mod->normalmins[2], v[2]);
8537 mod->normalmaxs[0] = max(mod->normalmaxs[0], v[0]);
8538 mod->normalmaxs[1] = max(mod->normalmaxs[1], v[1]);
8539 mod->normalmaxs[2] = max(mod->normalmaxs[2], v[2]);
8542 corner[0] = max(fabs(mod->normalmins[0]), fabs(mod->normalmaxs[0]));
8543 corner[1] = max(fabs(mod->normalmins[1]), fabs(mod->normalmaxs[1]));
8544 corner[2] = max(fabs(mod->normalmins[2]), fabs(mod->normalmaxs[2]));
8545 modelradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]+corner[2]*corner[2]);
8546 yawradius = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
8547 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
8548 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
8549 mod->yawmaxs[0] = mod->yawmaxs[1] = yawradius;
8550 mod->yawmins[0] = mod->yawmins[1] = -yawradius;
8551 mod->yawmins[2] = mod->normalmins[2];
8552 mod->yawmaxs[2] = mod->normalmaxs[2];
8553 mod->radius = modelradius;
8554 mod->radius2 = modelradius * modelradius;
8556 // this gets altered below if sky or water is used
8557 mod->DrawSky = NULL;
8558 mod->DrawAddWaterPlanes = NULL;
8560 for (j = 0;j < mod->nummodelsurfaces;j++)
8561 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->basematerialflags & MATERIALFLAG_SKY)
8563 if (j < mod->nummodelsurfaces)
8564 mod->DrawSky = R_Q1BSP_DrawSky;
8566 for (j = 0;j < mod->nummodelsurfaces;j++)
8567 if (mod->data_surfaces[j + mod->firstmodelsurface].texture->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
8569 if (j < mod->nummodelsurfaces)
8570 mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
8572 Mod_MakeCollisionBIH(mod, true, &mod->collision_bih);
8573 mod->render_bih = mod->collision_bih;
8575 // generate VBOs and other shared data before cloning submodels
8580 Mem_Free(submodelfirstsurface);
8582 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);