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.
23 byte mod_novis[(MAX_MAP_LEAFS + 7)/ 8];
25 cvar_t r_subdivide_size = {CVAR_SAVE, "r_subdivide_size", "128"};
26 cvar_t halflifebsp = {0, "halflifebsp", "0"};
27 cvar_t r_novis = {0, "r_novis", "0"};
28 cvar_t r_miplightmaps = {CVAR_SAVE, "r_miplightmaps", "0"};
29 cvar_t r_lightmaprgba = {0, "r_lightmaprgba", "1"};
30 cvar_t r_vertexsurfacesthreshold = {CVAR_SAVE, "r_vertexsurfacesthreshold", "48"};
37 void Mod_BrushInit (void)
39 Cvar_RegisterVariable(&r_subdivide_size);
40 Cvar_RegisterVariable(&halflifebsp);
41 Cvar_RegisterVariable(&r_novis);
42 Cvar_RegisterVariable(&r_miplightmaps);
43 Cvar_RegisterVariable(&r_lightmaprgba);
44 Cvar_RegisterVariable(&r_vertexsurfacesthreshold);
45 memset(mod_novis, 0xff, sizeof(mod_novis));
48 void Mod_Brush_SERAddEntity(void)
50 R_Clip_AddBox(currentrenderentity->mins, currentrenderentity->maxs, R_Entity_Callback, currentrenderentity, NULL);
58 mleaf_t *Mod_PointInLeaf (vec3_t p, model_t *model)
62 Mod_CheckLoaded(model);
63 // if (!model || !model->nodes)
64 // Sys_Error ("Mod_PointInLeaf: bad model");
66 // LordHavoc: modified to start at first clip node,
67 // in other words: first node of the (sub)model
68 node = model->nodes + model->hulls[0].firstclipnode;
69 while (node->contents == 0)
70 node = node->children[(node->plane->type < 3 ? p[node->plane->type] : DotProduct (p,node->plane->normal)) < node->plane->dist];
72 return (mleaf_t *)node;
75 void Mod_FindNonSolidLocation(vec3_t pos, model_t *mod)
77 if (Mod_PointInLeaf(pos, mod)->contents != CONTENTS_SOLID) return;
78 pos[0]-=1;if (Mod_PointInLeaf(pos, mod)->contents != CONTENTS_SOLID) return;
79 pos[0]+=2;if (Mod_PointInLeaf(pos, mod)->contents != CONTENTS_SOLID) return;
81 pos[1]-=1;if (Mod_PointInLeaf(pos, mod)->contents != CONTENTS_SOLID) return;
82 pos[1]+=2;if (Mod_PointInLeaf(pos, mod)->contents != CONTENTS_SOLID) return;
84 pos[2]-=1;if (Mod_PointInLeaf(pos, mod)->contents != CONTENTS_SOLID) return;
85 pos[2]+=2;if (Mod_PointInLeaf(pos, mod)->contents != CONTENTS_SOLID) return;
90 mleaf_t *Mod_PointInLeaf (vec3_t p, model_t *model)
96 if (!model || !model->nodes)
97 Sys_Error ("Mod_PointInLeaf: bad model");
102 if (node->contents < 0)
103 return (mleaf_t *)node;
105 d = DotProduct (p,plane->normal) - plane->dist;
107 node = node->children[0];
109 node = node->children[1];
112 return NULL; // never reached
121 static byte *Mod_DecompressVis (byte *in, model_t *model)
123 static byte decompressed[MAX_MAP_LEAFS/8];
128 row = (model->numleafs+7)>>3;
133 { // no vis info, so make all visible
158 } while (out - decompressed < row);
163 byte *Mod_LeafPVS (mleaf_t *leaf, model_t *model)
165 if (r_novis.integer || leaf == model->leafs || leaf->compressed_vis == NULL)
167 return Mod_DecompressVis (leaf->compressed_vis, model);
170 void Mod_SetupNoTexture(void)
175 for (y = 0;y < 16;y++)
177 for (x = 0;x < 16;x++)
179 if ((y < 8) ^ (x < 8))
196 memset(&loadmodel->notexture, 0, sizeof(texture_t));
197 strcpy(loadmodel->notexture.name, "notexture");
198 loadmodel->notexture.width = 16;
199 loadmodel->notexture.height = 16;
200 loadmodel->notexture.flags = 0;
201 loadmodel->notexture.texture = R_LoadTexture(loadmodel->texturepool, "notexture", 16, 16, &pix[0][0][0], TEXTYPE_RGBA, TEXF_MIPMAP);
209 static void Mod_LoadTextures (lump_t *l)
211 int i, j, k, num, max, altmax, mtwidth, mtheight, *dofs;
213 texture_t *tx, *tx2, *anims[10], *altanims[10];
215 byte *data, *mtdata, *data2;
218 Mod_SetupNoTexture();
222 loadmodel->textures = NULL;
226 m = (dmiptexlump_t *)(mod_base + l->fileofs);
228 m->nummiptex = LittleLong (m->nummiptex);
230 loadmodel->numtextures = m->nummiptex;
231 loadmodel->textures = Mem_Alloc(loadmodel->mempool, m->nummiptex * sizeof(*loadmodel->textures));
233 // just to work around bounds checking when debugging with it (array index out of bounds error thing)
235 for (i = 0;i < m->nummiptex;i++)
237 dofs[i] = LittleLong(dofs[i]);
240 dmiptex = (miptex_t *)((byte *)m + dofs[i]);
241 mtwidth = LittleLong (dmiptex->width);
242 mtheight = LittleLong (dmiptex->height);
244 j = LittleLong (dmiptex->offsets[0]);
248 if (j < 40 || j + mtwidth * mtheight > l->filelen)
249 Host_Error ("Texture %s is corrupt or incomplete\n", dmiptex->name);
250 mtdata = (byte *)dmiptex + j;
253 if ((mtwidth & 15) || (mtheight & 15))
254 Host_Error ("Texture %s is not 16 aligned", dmiptex->name);
255 // LordHavoc: rewriting the map texture loader for GLQuake
256 tx = Mem_Alloc(loadmodel->mempool, sizeof(texture_t));
257 memset(tx, 0, sizeof(texture_t));
259 tx->alternate_anims = NULL;
260 loadmodel->textures[i] = tx;
262 // LordHavoc: force all names to lowercase and make sure they are terminated while copying
263 for (j = 0;dmiptex->name[j] && j < 15;j++)
265 if (dmiptex->name[j] >= 'A' && dmiptex->name[j] <= 'Z')
266 tx->name[j] = dmiptex->name[j] + ('a' - 'A');
268 tx->name[j] = dmiptex->name[j];
275 Con_Printf("warning: unnamed texture in %s\n", loadmodel->name);
276 sprintf(tx->name, "unnamed%i", i);
280 tx->height = mtheight;
282 tx->glowtexture = NULL;
283 tx->fogtexture = NULL;
285 if (!loadmodel->ishlbsp && !strncmp(tx->name,"sky",3) && mtwidth == 256 && mtheight == 128) // LordHavoc: HL sky textures are entirely unrelated
287 data = loadimagepixels(tx->name, false, 0, 0);
290 if (image_width == 256 && image_height == 128)
292 if (loadmodel->isworldmodel)
299 Host_Error("Mod_LoadTextures: replacement sky image must be 256x128 pixels\n");
302 else if (loadmodel->isworldmodel)
303 R_InitSky (mtdata, 1);
305 else if ((tx->texture = loadtextureimagewithmask(loadmodel->texturepool, tx->name, 0, 0, false, true, true)))
307 tx->fogtexture = image_masktex;
308 strcpy(name, tx->name);
309 strcat(name, "_glow");
310 tx->glowtexture = loadtextureimage(loadmodel->texturepool, name, 0, 0, false, true, true);
314 if (loadmodel->ishlbsp)
316 if (mtdata && (data = W_ConvertWAD3Texture(dmiptex)))
319 tx->texture = R_LoadTexture (loadmodel->texturepool, tx->name, image_width, image_height, data, TEXTYPE_RGBA, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE);
320 if (R_TextureHasAlpha(tx->texture))
323 for (j = 0;j < image_width * image_height;j++)
324 data[j*4+0] = data[j*4+1] = data[j*4+2] = 255;
325 strcpy(name, tx->name);
326 strcat(name, "_fog");
327 tx->fogtexture = R_LoadTexture (loadmodel->texturepool, name, image_width, image_height, data, TEXTYPE_RGBA, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE);
331 else if ((data = W_GetTexture(tx->name)))
333 // get the size from the wad texture
334 tx->width = image_width;
335 tx->height = image_height;
336 tx->texture = R_LoadTexture (loadmodel->texturepool, tx->name, image_width, image_height, data, TEXTYPE_RGBA, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE);
337 if (R_TextureHasAlpha(tx->texture))
340 for (j = 0;j < image_width * image_height;j++)
341 data[j*4+0] = data[j*4+1] = data[j*4+2] = 255;
342 strcpy(name, tx->name);
343 strcat(name, "_fog");
344 tx->fogtexture = R_LoadTexture (loadmodel->texturepool, name, image_width, image_height, data, TEXTYPE_RGBA, TEXF_MIPMAP | TEXF_ALPHA | TEXF_PRECACHE);
352 tx->texture = loadmodel->notexture.texture;
357 if (mtdata) // texture included
362 if (r_fullbrights.value && tx->name[0] != '*')
364 for (j = 0;j < tx->width*tx->height;j++)
366 if (data[j] >= 224) // fullbright
375 data2 = Mem_Alloc(loadmodel->mempool, tx->width*tx->height);
376 for (j = 0;j < tx->width*tx->height;j++)
377 data2[j] = data[j] >= 224 ? 0 : data[j]; // no fullbrights
378 tx->texture = R_LoadTexture (loadmodel->texturepool, tx->name, tx->width, tx->height, data2, TEXTYPE_QPALETTE, TEXF_MIPMAP | TEXF_PRECACHE);
379 strcpy(name, tx->name);
380 strcat(name, "_glow");
381 for (j = 0;j < tx->width*tx->height;j++)
382 data2[j] = data[j] >= 224 ? data[j] : 0; // only fullbrights
383 tx->glowtexture = R_LoadTexture (loadmodel->texturepool, name, tx->width, tx->height, data2, TEXTYPE_QPALETTE, TEXF_MIPMAP | TEXF_PRECACHE);
387 tx->texture = R_LoadTexture (loadmodel->texturepool, tx->name, tx->width, tx->height, data, TEXTYPE_QPALETTE, TEXF_MIPMAP | TEXF_PRECACHE);
389 else // no texture, and no external replacement texture was found
393 tx->texture = loadmodel->notexture.texture;
398 if (tx->name[0] == '*')
400 tx->flags |= (SURF_DRAWTURB | SURF_LIGHTBOTHSIDES);
401 // LordHavoc: some turbulent textures should be fullbright and solid
402 if (!strncmp(tx->name,"*lava",5)
403 || !strncmp(tx->name,"*teleport",9)
404 || !strncmp(tx->name,"*rift",5)) // Scourge of Armagon texture
405 tx->flags |= (SURF_DRAWFULLBRIGHT | SURF_DRAWNOALPHA | SURF_CLIPSOLID);
407 else if (tx->name[0] == 's' && tx->name[1] == 'k' && tx->name[2] == 'y')
408 tx->flags |= (SURF_DRAWSKY | SURF_CLIPSOLID);
411 tx->flags |= SURF_LIGHTMAP;
412 if (!R_TextureHasAlpha(tx->texture))
413 tx->flags |= SURF_CLIPSOLID;
418 // sequence the animations
420 for (i = 0;i < m->nummiptex;i++)
422 tx = loadmodel->textures[i];
423 if (!tx || tx->name[0] != '+')
426 continue; // already sequenced
428 // find the number of frames in the animation
429 memset (anims, 0, sizeof(anims));
430 memset (altanims, 0, sizeof(altanims));
433 for (j = i;j < m->nummiptex;j++)
435 tx2 = loadmodel->textures[j];
436 if (!tx2 || tx2->name[0] != '+' || strcmp (tx2->name+2, tx->name+2))
440 if (num >= '0' && num <= '9')
441 anims[num - '0'] = tx2;
442 else if (num >= 'a' && num <= 'j')
443 altanims[num - 'a'] = tx2;
445 Host_Error ("Bad animating texture %s", tx->name);
448 for (j = 0;j < 10;j++)
450 if (anims[j] != NULL)
452 if (altanims[j] != NULL)
456 // link them all together
457 for (j = 0;j < max;j++)
461 Host_Error ("Missing frame %i of %s", j, tx->name);
462 tx2->anim_total = max;
463 tx2->alternate_anims = altanims[0]; // NULL if there is no alternate
464 for (k = 0;k < 10;k++)
465 tx2->anim_frames[k] = anims[k];
468 for (j = 0;j < altmax;j++)
472 Host_Error ("Missing frame %i of %s", j, tx->name);
473 tx2->anim_total = altmax;
474 tx2->alternate_anims = anims[0]; // NULL if there is no alternate
475 for (k = 0;k < 10;k++)
476 tx2->anim_frames[k] = altanims[k];
486 static void Mod_LoadLighting (lump_t *l)
489 byte *in, *out, *data;
491 char litfilename[1024];
492 loadmodel->lightdata = NULL;
493 if (loadmodel->ishlbsp) // LordHavoc: load the colored lighting data straight
495 loadmodel->lightdata = Mem_Alloc(loadmodel->mempool, l->filelen);
496 memcpy (loadmodel->lightdata, mod_base + l->fileofs, l->filelen);
498 else // LordHavoc: bsp version 29 (normal white lighting)
500 // LordHavoc: hope is not lost yet, check for a .lit file to load
501 strcpy(litfilename, loadmodel->name);
502 COM_StripExtension(litfilename, litfilename);
503 strcat(litfilename, ".lit");
504 data = (byte*) COM_LoadFile (litfilename, false);
507 if (loadsize > 8 && data[0] == 'Q' && data[1] == 'L' && data[2] == 'I' && data[3] == 'T')
509 i = LittleLong(((int *)data)[1]);
512 Con_DPrintf("%s loaded", litfilename);
513 loadmodel->lightdata = Mem_Alloc(loadmodel->mempool, loadsize - 8);
514 memcpy(loadmodel->lightdata, data + 8, loadsize - 8);
520 Con_Printf("Unknown .lit file version (%d)\n", i);
527 Con_Printf("Empty .lit file, ignoring\n");
529 Con_Printf("Corrupt .lit file (old version?), ignoring\n");
533 // LordHavoc: oh well, expand the white lighting data
536 loadmodel->lightdata = Mem_Alloc(loadmodel->mempool, l->filelen*3);
537 in = loadmodel->lightdata + l->filelen*2; // place the file at the end, so it will not be overwritten until the very last write
538 out = loadmodel->lightdata;
539 memcpy (in, mod_base + l->fileofs, l->filelen);
540 for (i = 0;i < l->filelen;i++)
556 static void Mod_LoadVisibility (lump_t *l)
560 loadmodel->visdata = NULL;
563 loadmodel->visdata = Mem_Alloc(loadmodel->mempool, l->filelen);
564 memcpy (loadmodel->visdata, mod_base + l->fileofs, l->filelen);
567 // used only for HalfLife maps
568 void Mod_ParseWadsFromEntityLump(char *data)
570 char key[128], value[4096];
575 data = COM_Parse(data);
578 if (com_token[0] != '{')
582 data = COM_Parse(data);
585 if (com_token[0] == '}')
586 break; // end of worldspawn
587 if (com_token[0] == '_')
588 strcpy(key, com_token + 1);
590 strcpy(key, com_token);
591 while (key[strlen(key)-1] == ' ') // remove trailing spaces
592 key[strlen(key)-1] = 0;
593 data = COM_Parse(data);
596 strcpy(value, com_token);
597 if (!strcmp("wad", key)) // for HalfLife maps
599 if (loadmodel->ishlbsp)
602 for (i = 0;i < 4096;i++)
603 if (value[i] != ';' && value[i] != '\\' && value[i] != '/' && value[i] != ':')
609 // ignore path - the \\ check is for HalfLife... stupid windoze 'programmers'...
610 if (value[i] == '\\' || value[i] == '/' || value[i] == ':')
612 else if (value[i] == ';' || value[i] == 0)
616 strcpy(wadname, "textures/");
617 strcat(wadname, &value[j]);
618 W_LoadTextureWadFile (wadname, false);
635 static void Mod_LoadEntities (lump_t *l)
639 loadmodel->entities = NULL;
642 loadmodel->entities = Mem_Alloc(loadmodel->mempool, l->filelen);
643 memcpy (loadmodel->entities, mod_base + l->fileofs, l->filelen);
644 if (loadmodel->ishlbsp)
645 Mod_ParseWadsFromEntityLump(loadmodel->entities);
654 static void Mod_LoadVertexes (lump_t *l)
660 in = (void *)(mod_base + l->fileofs);
661 if (l->filelen % sizeof(*in))
662 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
663 count = l->filelen / sizeof(*in);
664 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
666 loadmodel->vertexes = out;
667 loadmodel->numvertexes = count;
669 for ( i=0 ; i<count ; i++, in++, out++)
671 out->position[0] = LittleFloat (in->point[0]);
672 out->position[1] = LittleFloat (in->point[1]);
673 out->position[2] = LittleFloat (in->point[2]);
682 static void Mod_LoadSubmodels (lump_t *l)
688 in = (void *)(mod_base + l->fileofs);
689 if (l->filelen % sizeof(*in))
690 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
691 count = l->filelen / sizeof(*in);
692 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
694 loadmodel->submodels = out;
695 loadmodel->numsubmodels = count;
697 for ( i=0 ; i<count ; i++, in++, out++)
699 for (j=0 ; j<3 ; j++)
701 // spread the mins / maxs by a pixel
702 out->mins[j] = LittleFloat (in->mins[j]) - 1;
703 out->maxs[j] = LittleFloat (in->maxs[j]) + 1;
704 out->origin[j] = LittleFloat (in->origin[j]);
706 for (j=0 ; j<MAX_MAP_HULLS ; j++)
707 out->headnode[j] = LittleLong (in->headnode[j]);
708 out->visleafs = LittleLong (in->visleafs);
709 out->firstface = LittleLong (in->firstface);
710 out->numfaces = LittleLong (in->numfaces);
719 static void Mod_LoadEdges (lump_t *l)
725 in = (void *)(mod_base + l->fileofs);
726 if (l->filelen % sizeof(*in))
727 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
728 count = l->filelen / sizeof(*in);
729 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
731 loadmodel->edges = out;
732 loadmodel->numedges = count;
734 for ( i=0 ; i<count ; i++, in++, out++)
736 out->v[0] = (unsigned short)LittleShort(in->v[0]);
737 out->v[1] = (unsigned short)LittleShort(in->v[1]);
746 static void Mod_LoadTexinfo (lump_t *l)
753 in = (void *)(mod_base + l->fileofs);
754 if (l->filelen % sizeof(*in))
755 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
756 count = l->filelen / sizeof(*in);
757 out = Mem_Alloc(loadmodel->mempool, count * sizeof(*out));
759 loadmodel->texinfo = out;
760 loadmodel->numtexinfo = count;
762 for (i = 0;i < count;i++, in++, out++)
764 for (k = 0;k < 2;k++)
765 for (j = 0;j < 4;j++)
766 out->vecs[k][j] = LittleFloat (in->vecs[k][j]);
768 miptex = LittleLong (in->miptex);
769 out->flags = LittleLong (in->flags);
771 if (!loadmodel->textures)
772 out->texture = &loadmodel->notexture;
776 Host_Error ("miptex < 0");
777 if (miptex >= loadmodel->numtextures)
778 Host_Error ("miptex >= loadmodel->numtextures");
779 out->texture = loadmodel->textures[miptex];
782 out->texture = &loadmodel->notexture;
790 Fills in s->texturemins[] and s->extents[]
793 static void CalcSurfaceExtents (msurface_t *s)
795 float mins[2], maxs[2], val;
799 int bmins[2], bmaxs[2];
801 mins[0] = mins[1] = 999999999;
802 maxs[0] = maxs[1] = -999999999;
806 for (i=0 ; i<s->numedges ; i++)
808 e = loadmodel->surfedges[s->firstedge+i];
810 v = &loadmodel->vertexes[loadmodel->edges[e].v[0]];
812 v = &loadmodel->vertexes[loadmodel->edges[-e].v[1]];
814 for (j=0 ; j<2 ; j++)
816 val = v->position[0] * tex->vecs[j][0] +
817 v->position[1] * tex->vecs[j][1] +
818 v->position[2] * tex->vecs[j][2] +
827 for (i=0 ; i<2 ; i++)
829 bmins[i] = floor(mins[i]/16);
830 bmaxs[i] = ceil(maxs[i]/16);
832 s->texturemins[i] = bmins[i] * 16;
833 s->extents[i] = (bmaxs[i] - bmins[i]) * 16;
838 void BoundPoly (int numverts, float *verts, vec3_t mins, vec3_t maxs)
843 mins[0] = mins[1] = mins[2] = 9999;
844 maxs[0] = maxs[1] = maxs[2] = -9999;
846 for (i = 0;i < numverts;i++)
848 for (j = 0;j < 3;j++, v++)
858 #define MAX_SUBDIVPOLYTRIANGLES 4096
859 #define MAX_SUBDIVPOLYVERTS (MAX_SUBDIVPOLYTRIANGLES * 3)
861 static int subdivpolyverts, subdivpolytriangles;
862 static int subdivpolyindex[MAX_SUBDIVPOLYTRIANGLES][3];
863 static float subdivpolyvert[MAX_SUBDIVPOLYVERTS][3];
865 static int subdivpolylookupvert(vec3_t v)
868 for (i = 0;i < subdivpolyverts;i++)
869 if (subdivpolyvert[i][0] == v[0]
870 && subdivpolyvert[i][1] == v[1]
871 && subdivpolyvert[i][2] == v[2])
873 if (subdivpolyverts >= MAX_SUBDIVPOLYVERTS)
874 Host_Error("SubDividePolygon: ran out of vertices in buffer, please increase your r_subdivide_size");
875 VectorCopy(v, subdivpolyvert[subdivpolyverts]);
876 return subdivpolyverts++;
879 static void SubdividePolygon (int numverts, float *verts)
881 int i, i1, i2, i3, f, b, c, p;
882 vec3_t mins, maxs, front[256], back[256];
883 float m, *pv, *cv, dist[256], frac;
886 Host_Error ("SubdividePolygon: ran out of verts in buffer");
888 BoundPoly (numverts, verts, mins, maxs);
890 for (i = 0;i < 3;i++)
892 m = (mins[i] + maxs[i]) * 0.5;
893 m = r_subdivide_size.value * floor (m/r_subdivide_size.value + 0.5);
900 for (cv = verts, c = 0;c < numverts;c++, cv += 3)
904 for (p = numverts - 1, c = 0, pv = verts + p * 3, cv = verts;c < numverts;p = c, c++, pv = cv, cv += 3)
908 VectorCopy (pv, front[f]);
913 VectorCopy (pv, back[b]);
916 if (dist[p] == 0 || dist[c] == 0)
918 if ( (dist[p] > 0) != (dist[c] > 0) )
921 frac = dist[p] / (dist[p] - dist[c]);
922 front[f][0] = back[b][0] = pv[0] + frac * (cv[0] - pv[0]);
923 front[f][1] = back[b][1] = pv[1] + frac * (cv[1] - pv[1]);
924 front[f][2] = back[b][2] = pv[2] + frac * (cv[2] - pv[2]);
930 SubdividePolygon (f, front[0]);
931 SubdividePolygon (b, back[0]);
935 i1 = subdivpolylookupvert(verts);
936 i2 = subdivpolylookupvert(verts + 3);
937 for (i = 2;i < numverts;i++)
939 if (subdivpolytriangles >= MAX_SUBDIVPOLYTRIANGLES)
941 Con_Printf("SubdividePolygon: ran out of triangles in buffer, please increase your r_subdivide_size\n");
945 i3 = subdivpolylookupvert(verts + i * 3);
946 subdivpolyindex[subdivpolytriangles][0] = i1;
947 subdivpolyindex[subdivpolytriangles][1] = i2;
948 subdivpolyindex[subdivpolytriangles][2] = i3;
950 subdivpolytriangles++;
958 Breaks a polygon up along axial 64 unit
959 boundaries so that turbulent and sky warps
960 can be done reasonably.
963 void Mod_GenerateWarpMesh (msurface_t *surf)
969 subdivpolytriangles = 0;
971 SubdividePolygon (surf->poly_numverts, surf->poly_verts);
974 mesh->numverts = subdivpolyverts;
975 mesh->numtriangles = subdivpolytriangles;
976 if (mesh->numtriangles < 1)
977 Host_Error("Mod_GenerateWarpMesh: no triangles?\n");
978 mesh->index = Mem_Alloc(loadmodel->mempool, mesh->numtriangles * sizeof(int[3]) + mesh->numverts * sizeof(surfvertex_t));
979 mesh->vertex = (surfvertex_t *)((long) mesh->index + mesh->numtriangles * sizeof(int[3]));
980 memset(mesh->vertex, 0, mesh->numverts * sizeof(surfvertex_t));
982 for (i = 0;i < mesh->numtriangles;i++)
984 for (j = 0;j < 3;j++)
986 mesh->index[i*3+j] = subdivpolyindex[i][j];
987 //if (mesh->index[i] < 0 || mesh->index[i] >= mesh->numverts)
988 // Host_Error("Mod_GenerateWarpMesh: invalid index generated\n");
992 for (i = 0, v = mesh->vertex;i < subdivpolyverts;i++, v++)
994 VectorCopy(subdivpolyvert[i], v->v);
995 v->st[0] = DotProduct (v->v, surf->texinfo->vecs[0]);
996 v->st[1] = DotProduct (v->v, surf->texinfo->vecs[1]);
1000 void Mod_GenerateVertexLitMesh (msurface_t *surf)
1002 int i, is, it, *index, smax, tmax;
1007 //surf->flags |= SURF_LIGHTMAP;
1008 smax = surf->extents[0] >> 4;
1009 tmax = surf->extents[1] >> 4;
1010 surf->lightmaptexturestride = 0;
1011 surf->lightmaptexture = NULL;
1014 mesh->numverts = surf->poly_numverts;
1015 mesh->numtriangles = surf->poly_numverts - 2;
1016 mesh->index = Mem_Alloc(loadmodel->mempool, mesh->numtriangles * sizeof(int[3]) + mesh->numverts * sizeof(surfvertex_t));
1017 mesh->vertex = (surfvertex_t *)((long) mesh->index + mesh->numtriangles * sizeof(int[3]));
1018 memset(mesh->vertex, 0, mesh->numverts * sizeof(surfvertex_t));
1020 index = mesh->index;
1021 for (i = 0;i < mesh->numtriangles;i++)
1028 for (i = 0, in = surf->poly_verts, out = mesh->vertex;i < mesh->numverts;i++, in += 3, out++)
1030 VectorCopy (in, out->v);
1032 s = DotProduct (out->v, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3];
1033 t = DotProduct (out->v, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3];
1035 out->st[0] = s / surf->texinfo->texture->width;
1036 out->st[1] = t / surf->texinfo->texture->height;
1038 s = (s + 8 - surf->texturemins[0]) * (1.0 / 16.0);
1039 t = (t + 8 - surf->texturemins[1]) * (1.0 / 16.0);
1041 // lightmap coordinates
1045 // LordHavoc: calc lightmap data offset for vertex lighting to use
1048 is = bound(0, is, smax);
1049 it = bound(0, it, tmax);
1050 out->lightmapoffset = ((it * (smax+1) + is) * 3);
1054 void Mod_GenerateLightmappedMesh (msurface_t *surf)
1056 int i, is, it, *index, smax, tmax;
1057 float *in, s, t, xbase, ybase, xscale, yscale;
1061 surf->flags |= SURF_LIGHTMAP;
1062 smax = surf->extents[0] >> 4;
1063 tmax = surf->extents[1] >> 4;
1064 if (r_miplightmaps.integer)
1066 surf->lightmaptexturestride = (surf->extents[0]>>4)+1;
1067 surf->lightmaptexture = R_ProceduralTexture(loadmodel->texturepool, NULL, surf->lightmaptexturestride, (surf->extents[1]>>4)+1, loadmodel->lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_MIPMAP/* | TEXF_PRECACHE*/, NULL, NULL, 0);
1071 surf->lightmaptexturestride = R_CompatibleFragmentWidth((surf->extents[0]>>4)+1, loadmodel->lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, 0);
1072 surf->lightmaptexture = R_ProceduralTexture(loadmodel->texturepool, NULL, surf->lightmaptexturestride, (surf->extents[1]>>4)+1, loadmodel->lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FRAGMENT/* | TEXF_PRECACHE*/, NULL, NULL, 0);
1074 // surf->lightmaptexture = R_LoadTexture(loadmodel->texturepool, va("lightmap%08x", lightmapnum), surf->lightmaptexturestride, (surf->extents[1]>>4)+1, NULL, loadmodel->lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_FRAGMENT | TEXF_PRECACHE);
1075 // surf->lightmaptexture = R_LoadTexture(loadmodel->texturepool, va("lightmap%08x", lightmapnum), surf->lightmaptexturestride, (surf->extents[1]>>4)+1, NULL, loadmodel->lightmaprgba ? TEXTYPE_RGBA : TEXTYPE_RGB, TEXF_PRECACHE);
1076 R_GetFragmentLocation(surf->lightmaptexture, NULL, NULL, &xbase, &ybase, &xscale, &yscale);
1077 xscale = (xscale - xbase) * 16.0 / ((surf->extents[0] & ~15) + 16);
1078 yscale = (yscale - ybase) * 16.0 / ((surf->extents[1] & ~15) + 16);
1081 mesh->numverts = surf->poly_numverts;
1082 mesh->numtriangles = surf->poly_numverts - 2;
1083 mesh->index = Mem_Alloc(loadmodel->mempool, mesh->numtriangles * sizeof(int[3]) + mesh->numverts * sizeof(surfvertex_t));
1084 mesh->vertex = (surfvertex_t *)((long) mesh->index + mesh->numtriangles * sizeof(int[3]));
1085 memset(mesh->vertex, 0, mesh->numverts * sizeof(surfvertex_t));
1087 index = mesh->index;
1088 for (i = 0;i < mesh->numtriangles;i++)
1095 for (i = 0, in = surf->poly_verts, out = mesh->vertex;i < mesh->numverts;i++, in += 3, out++)
1097 VectorCopy (in, out->v);
1099 s = DotProduct (out->v, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3];
1100 t = DotProduct (out->v, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3];
1102 out->st[0] = s / surf->texinfo->texture->width;
1103 out->st[1] = t / surf->texinfo->texture->height;
1105 s = (s + 8 - surf->texturemins[0]) * (1.0 / 16.0);
1106 t = (t + 8 - surf->texturemins[1]) * (1.0 / 16.0);
1108 // lightmap coordinates
1109 out->uv[0] = s * xscale + xbase;
1110 out->uv[1] = t * yscale + ybase;
1112 // LordHavoc: calc lightmap data offset for vertex lighting to use
1115 is = bound(0, is, smax);
1116 it = bound(0, it, tmax);
1117 out->lightmapoffset = ((it * (smax+1) + is) * 3);
1121 void Mod_GenerateVertexMesh (msurface_t *surf)
1128 surf->lightmaptexturestride = 0;
1129 surf->lightmaptexture = NULL;
1132 mesh->numverts = surf->poly_numverts;
1133 mesh->numtriangles = surf->poly_numverts - 2;
1134 mesh->index = Mem_Alloc(loadmodel->mempool, mesh->numtriangles * sizeof(int[3]) + mesh->numverts * sizeof(surfvertex_t));
1135 mesh->vertex = (surfvertex_t *)((long) mesh->index + mesh->numtriangles * sizeof(int[3]));
1136 memset(mesh->vertex, 0, mesh->numverts * sizeof(surfvertex_t));
1138 index = mesh->index;
1139 for (i = 0;i < mesh->numtriangles;i++)
1146 for (i = 0, in = surf->poly_verts, out = mesh->vertex;i < mesh->numverts;i++, in += 3, out++)
1148 VectorCopy (in, out->v);
1149 out->st[0] = (DotProduct (out->v, surf->texinfo->vecs[0]) + surf->texinfo->vecs[0][3]) / surf->texinfo->texture->width;
1150 out->st[1] = (DotProduct (out->v, surf->texinfo->vecs[1]) + surf->texinfo->vecs[1][3]) / surf->texinfo->texture->height;
1154 void Mod_GenerateSurfacePolygon (msurface_t *surf)
1161 // convert edges back to a normal polygon
1162 surf->poly_numverts = surf->numedges;
1163 vert = surf->poly_verts = Mem_Alloc(loadmodel->mempool, sizeof(float[3]) * surf->numedges);
1164 for (i = 0;i < surf->numedges;i++)
1166 lindex = loadmodel->surfedges[surf->firstedge + i];
1168 vec = loadmodel->vertexes[loadmodel->edges[lindex].v[0]].position;
1170 vec = loadmodel->vertexes[loadmodel->edges[-lindex].v[1]].position;
1171 VectorCopy (vec, vert);
1181 static void Mod_LoadFaces (lump_t *l)
1185 int i, count, surfnum;
1188 in = (void *)(mod_base + l->fileofs);
1189 if (l->filelen % sizeof(*in))
1190 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
1191 count = l->filelen / sizeof(*in);
1192 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1194 loadmodel->surfaces = out;
1195 loadmodel->numsurfaces = count;
1197 for (surfnum = 0;surfnum < count;surfnum++, in++, out++)
1199 // FIXME: validate edges, texinfo, etc?
1200 out->firstedge = LittleLong(in->firstedge);
1201 out->numedges = LittleShort(in->numedges);
1203 out->texinfo = loadmodel->texinfo + LittleShort (in->texinfo);
1204 out->flags = out->texinfo->texture->flags;
1206 planenum = LittleShort(in->planenum);
1207 side = LittleShort(in->side);
1209 out->flags |= SURF_PLANEBACK;
1211 out->plane = loadmodel->planes + planenum;
1213 // clear lightmap (filled in later)
1214 out->lightmaptexture = NULL;
1216 // force lightmap upload on first time seeing the surface
1217 out->cached_dlight = true;
1218 out->cached_ambient = -1000;
1219 out->cached_lightscalebit = -1000;
1220 out->cached_light[0] = -1000;
1221 out->cached_light[1] = -1000;
1222 out->cached_light[2] = -1000;
1223 out->cached_light[3] = -1000;
1225 CalcSurfaceExtents (out);
1228 for (i = 0;i < MAXLIGHTMAPS;i++)
1229 out->styles[i] = in->styles[i];
1230 i = LittleLong(in->lightofs);
1232 out->samples = NULL;
1233 else if (loadmodel->ishlbsp) // LordHavoc: HalfLife map (bsp version 30)
1234 out->samples = loadmodel->lightdata + i;
1235 else // LordHavoc: white lighting (bsp version 29)
1236 out->samples = loadmodel->lightdata + (i * 3);
1238 Mod_GenerateSurfacePolygon(out);
1240 if (out->texinfo->texture->flags & SURF_DRAWSKY)
1242 out->shader = &Cshader_sky;
1243 out->samples = NULL;
1244 Mod_GenerateWarpMesh (out);
1248 if (out->texinfo->texture->flags & SURF_DRAWTURB)
1250 out->shader = &Cshader_water;
1252 for (i=0 ; i<2 ; i++)
1254 out->extents[i] = 16384*1024;
1255 out->texturemins[i] = -8192*1024;
1258 out->samples = NULL;
1259 Mod_GenerateWarpMesh (out);
1263 if (!R_TextureHasAlpha(out->texinfo->texture->texture))
1264 out->flags |= SURF_CLIPSOLID;
1265 if (out->texinfo->flags & TEX_SPECIAL)
1267 // qbsp couldn't find the texture for this surface, but it was either turb or sky... assume turb
1268 out->shader = &Cshader_water;
1269 out->samples = NULL;
1270 Mod_GenerateWarpMesh (out);
1272 else if ((out->extents[0]+1) > (256*16) || (out->extents[1]+1) > (256*16))
1274 Con_Printf ("Bad surface extents, converting to fullbright polygon");
1275 out->shader = &Cshader_wall_fullbright;
1276 out->samples = NULL;
1277 Mod_GenerateVertexMesh(out);
1279 else if (out->extents[0] < r_vertexsurfacesthreshold.integer && out->extents[1] < r_vertexsurfacesthreshold.integer)
1281 out->shader = &Cshader_wall_vertex;
1282 Mod_GenerateVertexLitMesh(out);
1286 out->shader = &Cshader_wall_lightmap;
1287 Mod_GenerateLightmappedMesh(out);
1292 static model_t *sortmodel;
1294 static int Mod_SurfaceQSortCompare(const void *voida, const void *voidb)
1296 const msurface_t *a, *b;
1297 a = *((const msurface_t **)voida);
1298 b = *((const msurface_t **)voidb);
1299 if (a->shader != b->shader)
1300 return (long) a->shader - (long) b->shader;
1301 if (a->texinfo->texture != b->texinfo->texture);
1302 return a->texinfo->texture - b->texinfo->texture;
1306 static void Mod_BrushSortedSurfaces(model_t *model, mempool_t *pool)
1310 sortmodel->modelsortedsurfaces = Mem_Alloc(pool, sortmodel->nummodelsurfaces * sizeof(msurface_t *));
1311 for (surfnum = 0;surfnum < sortmodel->nummodelsurfaces;surfnum++)
1312 sortmodel->modelsortedsurfaces[surfnum] = &sortmodel->surfaces[surfnum + sortmodel->firstmodelsurface];
1314 qsort(sortmodel->modelsortedsurfaces, sortmodel->nummodelsurfaces, sizeof(msurface_t *), Mod_SurfaceQSortCompare);
1323 static void Mod_SetParent (mnode_t *node, mnode_t *parent)
1325 node->parent = parent;
1326 if (node->contents < 0)
1328 Mod_SetParent (node->children[0], node);
1329 Mod_SetParent (node->children[1], node);
1337 static void Mod_LoadNodes (lump_t *l)
1343 in = (void *)(mod_base + l->fileofs);
1344 if (l->filelen % sizeof(*in))
1345 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
1346 count = l->filelen / sizeof(*in);
1347 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1349 loadmodel->nodes = out;
1350 loadmodel->numnodes = count;
1352 for ( i=0 ; i<count ; i++, in++, out++)
1354 for (j=0 ; j<3 ; j++)
1356 out->mins[j] = LittleShort (in->mins[j]);
1357 out->maxs[j] = LittleShort (in->maxs[j]);
1360 p = LittleLong(in->planenum);
1361 out->plane = loadmodel->planes + p;
1363 out->firstsurface = LittleShort (in->firstface);
1364 out->numsurfaces = LittleShort (in->numfaces);
1366 for (j=0 ; j<2 ; j++)
1368 p = LittleShort (in->children[j]);
1370 out->children[j] = loadmodel->nodes + p;
1372 out->children[j] = (mnode_t *)(loadmodel->leafs + (-1 - p));
1376 Mod_SetParent (loadmodel->nodes, NULL); // sets nodes and leafs
1384 static void Mod_LoadLeafs (lump_t *l)
1390 in = (void *)(mod_base + l->fileofs);
1391 if (l->filelen % sizeof(*in))
1392 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
1393 count = l->filelen / sizeof(*in);
1394 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1396 loadmodel->leafs = out;
1397 loadmodel->numleafs = count;
1399 for ( i=0 ; i<count ; i++, in++, out++)
1401 for (j=0 ; j<3 ; j++)
1403 out->mins[j] = LittleShort (in->mins[j]);
1404 out->maxs[j] = LittleShort (in->maxs[j]);
1407 p = LittleLong(in->contents);
1410 out->firstmarksurface = loadmodel->marksurfaces +
1411 LittleShort(in->firstmarksurface);
1412 out->nummarksurfaces = LittleShort(in->nummarksurfaces);
1414 p = LittleLong(in->visofs);
1416 out->compressed_vis = NULL;
1418 out->compressed_vis = loadmodel->visdata + p;
1420 for (j=0 ; j<4 ; j++)
1421 out->ambient_sound_level[j] = in->ambient_level[j];
1423 // gl underwater warp
1424 // LordHavoc: disabled underwater warping
1426 if (out->contents != CONTENTS_EMPTY)
1428 for (j=0 ; j<out->nummarksurfaces ; j++)
1429 out->firstmarksurface[j]->flags |= SURF_UNDERWATER;
1440 static void Mod_LoadClipnodes (lump_t *l)
1442 dclipnode_t *in, *out;
1446 in = (void *)(mod_base + l->fileofs);
1447 if (l->filelen % sizeof(*in))
1448 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
1449 count = l->filelen / sizeof(*in);
1450 out = Mem_Alloc(loadmodel->mempool, count*sizeof(*out));
1452 loadmodel->clipnodes = out;
1453 loadmodel->numclipnodes = count;
1455 if (loadmodel->ishlbsp)
1457 hull = &loadmodel->hulls[1];
1458 hull->clipnodes = out;
1459 hull->firstclipnode = 0;
1460 hull->lastclipnode = count-1;
1461 hull->planes = loadmodel->planes;
1462 hull->clip_mins[0] = -16;
1463 hull->clip_mins[1] = -16;
1464 hull->clip_mins[2] = -36;
1465 hull->clip_maxs[0] = 16;
1466 hull->clip_maxs[1] = 16;
1467 hull->clip_maxs[2] = 36;
1469 hull = &loadmodel->hulls[2];
1470 hull->clipnodes = out;
1471 hull->firstclipnode = 0;
1472 hull->lastclipnode = count-1;
1473 hull->planes = loadmodel->planes;
1474 hull->clip_mins[0] = -32;
1475 hull->clip_mins[1] = -32;
1476 hull->clip_mins[2] = -32;
1477 hull->clip_maxs[0] = 32;
1478 hull->clip_maxs[1] = 32;
1479 hull->clip_maxs[2] = 32;
1481 hull = &loadmodel->hulls[3];
1482 hull->clipnodes = out;
1483 hull->firstclipnode = 0;
1484 hull->lastclipnode = count-1;
1485 hull->planes = loadmodel->planes;
1486 hull->clip_mins[0] = -16;
1487 hull->clip_mins[1] = -16;
1488 hull->clip_mins[2] = -18;
1489 hull->clip_maxs[0] = 16;
1490 hull->clip_maxs[1] = 16;
1491 hull->clip_maxs[2] = 18;
1495 hull = &loadmodel->hulls[1];
1496 hull->clipnodes = out;
1497 hull->firstclipnode = 0;
1498 hull->lastclipnode = count-1;
1499 hull->planes = loadmodel->planes;
1500 hull->clip_mins[0] = -16;
1501 hull->clip_mins[1] = -16;
1502 hull->clip_mins[2] = -24;
1503 hull->clip_maxs[0] = 16;
1504 hull->clip_maxs[1] = 16;
1505 hull->clip_maxs[2] = 32;
1507 hull = &loadmodel->hulls[2];
1508 hull->clipnodes = out;
1509 hull->firstclipnode = 0;
1510 hull->lastclipnode = count-1;
1511 hull->planes = loadmodel->planes;
1512 hull->clip_mins[0] = -32;
1513 hull->clip_mins[1] = -32;
1514 hull->clip_mins[2] = -24;
1515 hull->clip_maxs[0] = 32;
1516 hull->clip_maxs[1] = 32;
1517 hull->clip_maxs[2] = 64;
1520 for (i=0 ; i<count ; i++, out++, in++)
1522 out->planenum = LittleLong(in->planenum);
1523 out->children[0] = LittleShort(in->children[0]);
1524 out->children[1] = LittleShort(in->children[1]);
1525 if (out->children[0] >= count || out->children[1] >= count)
1526 Host_Error("Corrupt clipping hull (out of range child)\n");
1534 Duplicate the drawing hull structure as a clipping hull
1537 static void Mod_MakeHull0 (void)
1544 hull = &loadmodel->hulls[0];
1546 in = loadmodel->nodes;
1547 out = Mem_Alloc(loadmodel->mempool, loadmodel->numnodes * sizeof(dclipnode_t));
1549 hull->clipnodes = out;
1550 hull->firstclipnode = 0;
1551 hull->lastclipnode = loadmodel->numnodes - 1;
1552 hull->planes = loadmodel->planes;
1554 for (i = 0;i < loadmodel->numnodes;i++, out++, in++)
1556 out->planenum = in->plane - loadmodel->planes;
1557 out->children[0] = in->children[0]->contents < 0 ? in->children[0]->contents : in->children[0] - loadmodel->nodes;
1558 out->children[1] = in->children[1]->contents < 0 ? in->children[1]->contents : in->children[1] - loadmodel->nodes;
1564 Mod_LoadMarksurfaces
1567 static void Mod_LoadMarksurfaces (lump_t *l)
1572 in = (void *)(mod_base + l->fileofs);
1573 if (l->filelen % sizeof(*in))
1574 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
1575 loadmodel->nummarksurfaces = l->filelen / sizeof(*in);
1576 loadmodel->marksurfaces = Mem_Alloc(loadmodel->mempool, loadmodel->nummarksurfaces * sizeof(msurface_t *));
1578 for (i = 0;i < loadmodel->nummarksurfaces;i++)
1580 j = (unsigned) LittleShort(in[i]);
1581 if (j >= loadmodel->numsurfaces)
1582 Host_Error ("Mod_ParseMarksurfaces: bad surface number");
1583 loadmodel->marksurfaces[i] = loadmodel->surfaces + j;
1592 static void Mod_LoadSurfedges (lump_t *l)
1597 in = (void *)(mod_base + l->fileofs);
1598 if (l->filelen % sizeof(*in))
1599 Host_Error ("MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
1600 loadmodel->numsurfedges = l->filelen / sizeof(*in);
1601 loadmodel->surfedges = Mem_Alloc(loadmodel->mempool, loadmodel->numsurfedges * sizeof(int));
1603 for (i = 0;i < loadmodel->numsurfedges;i++)
1604 loadmodel->surfedges[i] = LittleLong (in[i]);
1613 static void Mod_LoadPlanes (lump_t *l)
1619 in = (void *)(mod_base + l->fileofs);
1620 if (l->filelen % sizeof(*in))
1621 Host_Error ("MOD_LoadBmodel: funny lump size in %s", loadmodel->name);
1623 loadmodel->numplanes = l->filelen / sizeof(*in);
1624 loadmodel->planes = out = Mem_Alloc(loadmodel->mempool, loadmodel->numplanes * sizeof(*out));
1626 for (i = 0;i < loadmodel->numplanes;i++, in++, out++)
1628 out->normal[0] = LittleFloat (in->normal[0]);
1629 out->normal[1] = LittleFloat (in->normal[1]);
1630 out->normal[2] = LittleFloat (in->normal[2]);
1631 out->dist = LittleFloat (in->dist);
1633 // LordHavoc: recalculated by PlaneClassify, FIXME: validate type and report error if type does not match normal?
1634 // out->type = LittleLong (in->type);
1639 #define MAX_POINTS_ON_WINDING 64
1645 double points[8][3]; // variable sized
1654 static winding_t *NewWinding (int points)
1659 if (points > MAX_POINTS_ON_WINDING)
1660 Sys_Error("NewWinding: too many points\n");
1662 size = sizeof(winding_t) + sizeof(double[3]) * (points - 8);
1663 w = Mem_Alloc(loadmodel->mempool, size);
1664 memset (w, 0, size);
1669 static void FreeWinding (winding_t *w)
1679 static winding_t *BaseWindingForPlane (mplane_t *p)
1681 double org[3], vright[3], vup[3], normal[3];
1684 VectorCopy(p->normal, normal);
1685 VectorVectorsDouble(normal, vright, vup);
1687 VectorScale (vup, 1024.0*1024.0*1024.0, vup);
1688 VectorScale (vright, 1024.0*1024.0*1024.0, vright);
1690 // project a really big axis aligned box onto the plane
1693 VectorScale (p->normal, p->dist, org);
1695 VectorSubtract (org, vright, w->points[0]);
1696 VectorAdd (w->points[0], vup, w->points[0]);
1698 VectorAdd (org, vright, w->points[1]);
1699 VectorAdd (w->points[1], vup, w->points[1]);
1701 VectorAdd (org, vright, w->points[2]);
1702 VectorSubtract (w->points[2], vup, w->points[2]);
1704 VectorSubtract (org, vright, w->points[3]);
1705 VectorSubtract (w->points[3], vup, w->points[3]);
1716 Clips the winding to the plane, returning the new winding on the positive side
1717 Frees the input winding.
1718 If keepon is true, an exactly on-plane winding will be saved, otherwise
1719 it will be clipped away.
1722 static winding_t *ClipWinding (winding_t *in, mplane_t *split, int keepon)
1724 double dists[MAX_POINTS_ON_WINDING + 1];
1725 int sides[MAX_POINTS_ON_WINDING + 1];
1734 counts[SIDE_FRONT] = counts[SIDE_BACK] = counts[SIDE_ON] = 0;
1736 // determine sides for each point
1737 for (i = 0;i < in->numpoints;i++)
1739 dists[i] = dot = DotProduct (in->points[i], split->normal) - split->dist;
1740 if (dot > ON_EPSILON)
1741 sides[i] = SIDE_FRONT;
1742 else if (dot < -ON_EPSILON)
1743 sides[i] = SIDE_BACK;
1748 sides[i] = sides[0];
1749 dists[i] = dists[0];
1751 if (keepon && !counts[0] && !counts[1])
1762 maxpts = in->numpoints+4; // can't use counts[0]+2 because of fp grouping errors
1763 if (maxpts > MAX_POINTS_ON_WINDING)
1764 Sys_Error ("ClipWinding: maxpts > MAX_POINTS_ON_WINDING");
1766 neww = NewWinding (maxpts);
1768 for (i = 0;i < in->numpoints;i++)
1770 if (neww->numpoints >= maxpts)
1771 Sys_Error ("ClipWinding: points exceeded estimate");
1775 if (sides[i] == SIDE_ON)
1777 VectorCopy (p1, neww->points[neww->numpoints]);
1782 if (sides[i] == SIDE_FRONT)
1784 VectorCopy (p1, neww->points[neww->numpoints]);
1788 if (sides[i+1] == SIDE_ON || sides[i+1] == sides[i])
1791 // generate a split point
1792 p2 = in->points[(i+1)%in->numpoints];
1794 dot = dists[i] / (dists[i]-dists[i+1]);
1795 for (j = 0;j < 3;j++)
1796 { // avoid round off error when possible
1797 if (split->normal[j] == 1)
1798 mid[j] = split->dist;
1799 else if (split->normal[j] == -1)
1800 mid[j] = -split->dist;
1802 mid[j] = p1[j] + dot*(p2[j]-p1[j]);
1805 VectorCopy (mid, neww->points[neww->numpoints]);
1809 // free the original winding
1813 Mem_CheckSentinels(neww);
1823 Divides a winding by a plane, producing one or two windings. The
1824 original winding is not damaged or freed. If only on one side, the
1825 returned winding will be the input winding. If on both sides, two
1826 new windings will be created.
1829 static void DivideWinding (winding_t *in, mplane_t *split, winding_t **front, winding_t **back)
1831 double dists[MAX_POINTS_ON_WINDING + 1];
1832 int sides[MAX_POINTS_ON_WINDING + 1];
1841 counts[SIDE_FRONT] = counts[SIDE_BACK] = counts[SIDE_ON] = 0;
1843 // determine sides for each point
1844 for (i = 0;i < in->numpoints;i++)
1846 dot = DotProduct (in->points[i], split->normal);
1849 if (dot > ON_EPSILON) sides[i] = SIDE_FRONT;
1850 else if (dot < -ON_EPSILON) sides[i] = SIDE_BACK;
1851 else sides[i] = SIDE_ON;
1854 sides[i] = sides[0];
1855 dists[i] = dists[0];
1857 *front = *back = NULL;
1870 maxpts = in->numpoints+4; // can't use counts[0]+2 because of fp grouping errors
1872 if (maxpts > MAX_POINTS_ON_WINDING)
1873 Sys_Error ("ClipWinding: maxpts > MAX_POINTS_ON_WINDING");
1875 *front = f = NewWinding (maxpts);
1876 *back = b = NewWinding (maxpts);
1878 for (i = 0;i < in->numpoints;i++)
1880 if (f->numpoints >= maxpts || b->numpoints >= maxpts)
1881 Sys_Error ("DivideWinding: points exceeded estimate");
1885 if (sides[i] == SIDE_ON)
1887 VectorCopy (p1, f->points[f->numpoints]);
1889 VectorCopy (p1, b->points[b->numpoints]);
1894 if (sides[i] == SIDE_FRONT)
1896 VectorCopy (p1, f->points[f->numpoints]);
1899 else if (sides[i] == SIDE_BACK)
1901 VectorCopy (p1, b->points[b->numpoints]);
1905 if (sides[i+1] == SIDE_ON || sides[i+1] == sides[i])
1908 // generate a split point
1909 p2 = in->points[(i+1)%in->numpoints];
1911 dot = dists[i] / (dists[i]-dists[i+1]);
1912 for (j = 0;j < 3;j++)
1913 { // avoid round off error when possible
1914 if (split->normal[j] == 1)
1915 mid[j] = split->dist;
1916 else if (split->normal[j] == -1)
1917 mid[j] = -split->dist;
1919 mid[j] = p1[j] + dot*(p2[j]-p1[j]);
1922 VectorCopy (mid, f->points[f->numpoints]);
1924 VectorCopy (mid, b->points[b->numpoints]);
1929 Mem_CheckSentinels(f);
1930 Mem_CheckSentinels(b);
1933 typedef struct portal_s
1936 mnode_t *nodes[2]; // [0] = front side of plane
1937 struct portal_s *next[2];
1939 struct portal_s *chain; // all portals are linked into a list
1943 static portal_t *portalchain;
1950 static portal_t *AllocPortal (void)
1953 p = Mem_Alloc(loadmodel->mempool, sizeof(portal_t));
1954 //memset(p, 0, sizeof(portal_t));
1955 p->chain = portalchain;
1960 static void FreePortal(portal_t *p)
1965 static void Mod_RecursiveRecalcNodeBBox(mnode_t *node)
1967 // calculate children first
1968 if (node->children[0]->contents >= 0)
1969 Mod_RecursiveRecalcNodeBBox(node->children[0]);
1970 if (node->children[1]->contents >= 0)
1971 Mod_RecursiveRecalcNodeBBox(node->children[1]);
1973 // make combined bounding box from children
1974 node->mins[0] = min(node->children[0]->mins[0], node->children[1]->mins[0]);
1975 node->mins[1] = min(node->children[0]->mins[1], node->children[1]->mins[1]);
1976 node->mins[2] = min(node->children[0]->mins[2], node->children[1]->mins[2]);
1977 node->maxs[0] = max(node->children[0]->maxs[0], node->children[1]->maxs[0]);
1978 node->maxs[1] = max(node->children[0]->maxs[1], node->children[1]->maxs[1]);
1979 node->maxs[2] = max(node->children[0]->maxs[2], node->children[1]->maxs[2]);
1982 static void Mod_FinalizePortals(void)
1984 int i, j, numportals, numpoints;
1985 portal_t *p, *pnext;
1988 mleaf_t *leaf, *endleaf;
1991 //Mem_CheckSentinelsGlobal();
1993 // recalculate bounding boxes for all leafs (because qbsp is very sloppy)
1994 leaf = loadmodel->leafs;
1995 endleaf = leaf + loadmodel->numleafs;
1996 for (;leaf < endleaf;leaf++)
1998 VectorSet( 2000000000, 2000000000, 2000000000, leaf->mins);
1999 VectorSet(-2000000000, -2000000000, -2000000000, leaf->maxs);
2006 for (i = 0;i < 2;i++)
2008 leaf = (mleaf_t *)p->nodes[i];
2010 for (j = 0;j < w->numpoints;j++)
2012 if (leaf->mins[0] > w->points[j][0]) leaf->mins[0] = w->points[j][0];
2013 if (leaf->mins[1] > w->points[j][1]) leaf->mins[1] = w->points[j][1];
2014 if (leaf->mins[2] > w->points[j][2]) leaf->mins[2] = w->points[j][2];
2015 if (leaf->maxs[0] < w->points[j][0]) leaf->maxs[0] = w->points[j][0];
2016 if (leaf->maxs[1] < w->points[j][1]) leaf->maxs[1] = w->points[j][1];
2017 if (leaf->maxs[2] < w->points[j][2]) leaf->maxs[2] = w->points[j][2];
2024 Mod_RecursiveRecalcNodeBBox(loadmodel->nodes);
2026 //Mem_CheckSentinelsGlobal();
2028 // tally up portal and point counts
2034 // note: this check must match the one below or it will usually corrupt memory
2035 // 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
2036 if (p->winding && p->nodes[0] != p->nodes[1]
2037 && p->nodes[0]->contents != CONTENTS_SOLID && p->nodes[1]->contents != CONTENTS_SOLID
2038 && p->nodes[0]->contents != CONTENTS_SKY && p->nodes[1]->contents != CONTENTS_SKY)
2041 numpoints += p->winding->numpoints * 2;
2045 loadmodel->portals = Mem_Alloc(loadmodel->mempool, numportals * sizeof(mportal_t) + numpoints * sizeof(mvertex_t));
2046 loadmodel->numportals = numportals;
2047 loadmodel->portalpoints = (void *) ((long) loadmodel->portals + numportals * sizeof(mportal_t));
2048 loadmodel->numportalpoints = numpoints;
2049 // clear all leaf portal chains
2050 for (i = 0;i < loadmodel->numleafs;i++)
2051 loadmodel->leafs[i].portals = NULL;
2052 // process all portals in the global portal chain, while freeing them
2053 portal = loadmodel->portals;
2054 point = loadmodel->portalpoints;
2063 // note: this check must match the one above or it will usually corrupt memory
2064 // 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
2065 if (p->nodes[0] != p->nodes[1]
2066 && p->nodes[0]->contents != CONTENTS_SOLID && p->nodes[1]->contents != CONTENTS_SOLID
2067 && p->nodes[0]->contents != CONTENTS_SKY && p->nodes[1]->contents != CONTENTS_SKY)
2069 // first make the back to front portal (forward portal)
2070 portal->points = point;
2071 portal->numpoints = p->winding->numpoints;
2072 portal->plane.dist = p->plane.dist;
2073 VectorCopy(p->plane.normal, portal->plane.normal);
2074 portal->here = (mleaf_t *)p->nodes[1];
2075 portal->past = (mleaf_t *)p->nodes[0];
2077 for (j = 0;j < portal->numpoints;j++)
2079 VectorCopy(p->winding->points[j], point->position);
2082 PlaneClassify(&portal->plane);
2084 // link into leaf's portal chain
2085 portal->next = portal->here->portals;
2086 portal->here->portals = portal;
2088 // advance to next portal
2091 // then make the front to back portal (backward portal)
2092 portal->points = point;
2093 portal->numpoints = p->winding->numpoints;
2094 portal->plane.dist = -p->plane.dist;
2095 VectorNegate(p->plane.normal, portal->plane.normal);
2096 portal->here = (mleaf_t *)p->nodes[0];
2097 portal->past = (mleaf_t *)p->nodes[1];
2099 for (j = portal->numpoints - 1;j >= 0;j--)
2101 VectorCopy(p->winding->points[j], point->position);
2104 PlaneClassify(&portal->plane);
2106 // link into leaf's portal chain
2107 portal->next = portal->here->portals;
2108 portal->here->portals = portal;
2110 // advance to next portal
2113 FreeWinding(p->winding);
2119 //Mem_CheckSentinelsGlobal();
2127 static void AddPortalToNodes (portal_t *p, mnode_t *front, mnode_t *back)
2130 Host_Error ("AddPortalToNodes: NULL front node");
2132 Host_Error ("AddPortalToNodes: NULL back node");
2133 if (p->nodes[0] || p->nodes[1])
2134 Host_Error ("AddPortalToNodes: already included");
2135 // 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
2137 p->nodes[0] = front;
2138 p->next[0] = (portal_t *)front->portals;
2139 front->portals = (mportal_t *)p;
2142 p->next[1] = (portal_t *)back->portals;
2143 back->portals = (mportal_t *)p;
2148 RemovePortalFromNode
2151 static void RemovePortalFromNodes(portal_t *portal)
2155 void **portalpointer;
2157 for (i = 0;i < 2;i++)
2159 node = portal->nodes[i];
2161 portalpointer = (void **) &node->portals;
2166 Host_Error ("RemovePortalFromNodes: portal not in leaf");
2170 if (portal->nodes[0] == node)
2172 *portalpointer = portal->next[0];
2173 portal->nodes[0] = NULL;
2175 else if (portal->nodes[1] == node)
2177 *portalpointer = portal->next[1];
2178 portal->nodes[1] = NULL;
2181 Host_Error ("RemovePortalFromNodes: portal not bounding leaf");
2185 if (t->nodes[0] == node)
2186 portalpointer = (void **) &t->next[0];
2187 else if (t->nodes[1] == node)
2188 portalpointer = (void **) &t->next[1];
2190 Host_Error ("RemovePortalFromNodes: portal not bounding leaf");
2195 static void Mod_RecursiveNodePortals (mnode_t *node)
2198 mnode_t *front, *back, *other_node;
2199 mplane_t clipplane, *plane;
2200 portal_t *portal, *nextportal, *nodeportal, *splitportal, *temp;
2201 winding_t *nodeportalwinding, *frontwinding, *backwinding;
2203 // CheckLeafPortalConsistancy (node);
2205 // if a leaf, we're done
2209 plane = node->plane;
2211 front = node->children[0];
2212 back = node->children[1];
2214 Host_Error("Mod_RecursiveNodePortals: corrupt node hierarchy");
2216 // create the new portal by generating a polygon for the node plane,
2217 // and clipping it by all of the other portals (which came from nodes above this one)
2218 nodeportal = AllocPortal ();
2219 nodeportal->plane = *node->plane;
2221 nodeportalwinding = BaseWindingForPlane (node->plane);
2222 //Mem_CheckSentinels(nodeportalwinding);
2223 side = 0; // shut up compiler warning
2224 for (portal = (portal_t *)node->portals;portal;portal = portal->next[side])
2226 clipplane = portal->plane;
2227 if (portal->nodes[0] == portal->nodes[1])
2228 Host_Error("Mod_RecursiveNodePortals: portal has same node on both sides (1)");
2229 if (portal->nodes[0] == node)
2231 else if (portal->nodes[1] == node)
2233 clipplane.dist = -clipplane.dist;
2234 VectorNegate (clipplane.normal, clipplane.normal);
2238 Host_Error ("Mod_RecursiveNodePortals: mislinked portal");
2240 nodeportalwinding = ClipWinding (nodeportalwinding, &clipplane, true);
2241 if (!nodeportalwinding)
2243 printf ("Mod_RecursiveNodePortals: WARNING: new portal was clipped away\n");
2248 if (nodeportalwinding)
2250 // if the plane was not clipped on all sides, there was an error
2251 nodeportal->winding = nodeportalwinding;
2252 AddPortalToNodes (nodeportal, front, back);
2255 // split the portals of this node along this node's plane and assign them to the children of this node
2256 // (migrating the portals downward through the tree)
2257 for (portal = (portal_t *)node->portals;portal;portal = nextportal)
2259 if (portal->nodes[0] == portal->nodes[1])
2260 Host_Error("Mod_RecursiveNodePortals: portal has same node on both sides (2)");
2261 if (portal->nodes[0] == node)
2263 else if (portal->nodes[1] == node)
2266 Host_Error ("Mod_RecursiveNodePortals: mislinked portal");
2267 nextportal = portal->next[side];
2269 other_node = portal->nodes[!side];
2270 RemovePortalFromNodes (portal);
2272 // cut the portal into two portals, one on each side of the node plane
2273 DivideWinding (portal->winding, plane, &frontwinding, &backwinding);
2278 AddPortalToNodes (portal, back, other_node);
2280 AddPortalToNodes (portal, other_node, back);
2286 AddPortalToNodes (portal, front, other_node);
2288 AddPortalToNodes (portal, other_node, front);
2292 // the winding is split
2293 splitportal = AllocPortal ();
2294 temp = splitportal->chain;
2295 *splitportal = *portal;
2296 splitportal->chain = temp;
2297 splitportal->winding = backwinding;
2298 FreeWinding (portal->winding);
2299 portal->winding = frontwinding;
2303 AddPortalToNodes (portal, front, other_node);
2304 AddPortalToNodes (splitportal, back, other_node);
2308 AddPortalToNodes (portal, other_node, front);
2309 AddPortalToNodes (splitportal, other_node, back);
2313 Mod_RecursiveNodePortals(front);
2314 Mod_RecursiveNodePortals(back);
2318 void Mod_MakeOutsidePortals(mnode_t *node)
2321 portal_t *p, *portals[6];
2322 mnode_t *outside_node;
2324 outside_node = Mem_Alloc(loadmodel->mempool, sizeof(mnode_t));
2325 outside_node->contents = CONTENTS_SOLID;
2326 outside_node->portals = NULL;
2328 for (i = 0;i < 3;i++)
2330 for (j = 0;j < 2;j++)
2332 portals[j*3 + i] = p = AllocPortal ();
2333 memset (&p->plane, 0, sizeof(mplane_t));
2334 p->plane.normal[i] = j ? -1 : 1;
2335 p->plane.dist = -65536;
2336 p->winding = BaseWindingForPlane (&p->plane);
2338 AddPortalToNodes (p, outside_node, node);
2340 AddPortalToNodes (p, node, outside_node);
2344 // clip the basewindings by all the other planes
2345 for (i = 0;i < 6;i++)
2347 for (j = 0;j < 6;j++)
2351 portals[i]->winding = ClipWinding (portals[i]->winding, &portals[j]->plane, true);
2357 static void Mod_MakePortals(void)
2359 // Con_Printf("building portals for %s\n", loadmodel->name);
2362 // Mod_MakeOutsidePortals (loadmodel->nodes);
2363 Mod_RecursiveNodePortals (loadmodel->nodes);
2364 Mod_FinalizePortals();
2372 void Mod_LoadBrushModel (model_t *mod, void *buffer)
2377 mempool_t *mainmempool;
2379 mod->type = mod_brush;
2381 header = (dheader_t *)buffer;
2383 i = LittleLong (header->version);
2384 if (i != BSPVERSION && i != 30)
2385 Host_Error ("Mod_LoadBrushModel: %s has wrong version number (%i should be %i or 30 (HalfLife))", mod->name, i, BSPVERSION);
2386 mod->ishlbsp = i == 30;
2387 if (loadmodel->isworldmodel)
2388 Cvar_SetValue("halflifebsp", mod->ishlbsp);
2390 // swap all the lumps
2391 mod_base = (byte *)header;
2393 for (i=0 ; i<sizeof(dheader_t)/4 ; i++)
2394 ((int *)header)[i] = LittleLong ( ((int *)header)[i]);
2398 // store which lightmap format to use
2399 mod->lightmaprgba = r_lightmaprgba.integer;
2401 // Mem_CheckSentinelsGlobal();
2402 // LordHavoc: had to move entity loading above everything to allow parsing various settings from worldspawn
2403 Mod_LoadEntities (&header->lumps[LUMP_ENTITIES]);
2404 // Mem_CheckSentinelsGlobal();
2405 Mod_LoadVertexes (&header->lumps[LUMP_VERTEXES]);
2406 // Mem_CheckSentinelsGlobal();
2407 Mod_LoadEdges (&header->lumps[LUMP_EDGES]);
2408 // Mem_CheckSentinelsGlobal();
2409 Mod_LoadSurfedges (&header->lumps[LUMP_SURFEDGES]);
2410 // Mem_CheckSentinelsGlobal();
2411 Mod_LoadTextures (&header->lumps[LUMP_TEXTURES]);
2412 // Mem_CheckSentinelsGlobal();
2413 Mod_LoadLighting (&header->lumps[LUMP_LIGHTING]);
2414 // Mem_CheckSentinelsGlobal();
2415 Mod_LoadPlanes (&header->lumps[LUMP_PLANES]);
2416 // Mem_CheckSentinelsGlobal();
2417 Mod_LoadTexinfo (&header->lumps[LUMP_TEXINFO]);
2418 // Mem_CheckSentinelsGlobal();
2419 Mod_LoadFaces (&header->lumps[LUMP_FACES]);
2420 // Mem_CheckSentinelsGlobal();
2421 Mod_LoadMarksurfaces (&header->lumps[LUMP_MARKSURFACES]);
2422 // Mem_CheckSentinelsGlobal();
2423 Mod_LoadVisibility (&header->lumps[LUMP_VISIBILITY]);
2424 // Mem_CheckSentinelsGlobal();
2425 Mod_LoadLeafs (&header->lumps[LUMP_LEAFS]);
2426 // Mem_CheckSentinelsGlobal();
2427 Mod_LoadNodes (&header->lumps[LUMP_NODES]);
2428 // Mem_CheckSentinelsGlobal();
2429 Mod_LoadClipnodes (&header->lumps[LUMP_CLIPNODES]);
2430 // Mem_CheckSentinelsGlobal();
2431 // Mod_LoadEntities (&header->lumps[LUMP_ENTITIES]);
2432 Mod_LoadSubmodels (&header->lumps[LUMP_MODELS]);
2433 // Mem_CheckSentinelsGlobal();
2436 // Mem_CheckSentinelsGlobal();
2438 // Mem_CheckSentinelsGlobal();
2440 mod->numframes = 2; // regular and alternate animation
2442 mainmempool = mod->mempool;
2445 // set up the submodels (FIXME: this is confusing)
2447 for (i = 0;i < mod->numsubmodels;i++)
2450 float dist, modelyawradius, modelradius, *vec;
2453 mod->normalmins[0] = mod->normalmins[1] = mod->normalmins[2] = 1000000000.0f;
2454 mod->normalmaxs[0] = mod->normalmaxs[1] = mod->normalmaxs[2] = -1000000000.0f;
2458 bm = &mod->submodels[i];
2460 mod->hulls[0].firstclipnode = bm->headnode[0];
2461 for (j=1 ; j<MAX_MAP_HULLS ; j++)
2463 mod->hulls[j].firstclipnode = bm->headnode[j];
2464 mod->hulls[j].lastclipnode = mod->numclipnodes - 1;
2467 mod->firstmodelsurface = bm->firstface;
2468 mod->nummodelsurfaces = bm->numfaces;
2470 mod->DrawSky = NULL;
2471 // LordHavoc: calculate bmodel bounding box rather than trusting what it says
2472 for (j = 0, surf = &mod->surfaces[mod->firstmodelsurface];j < mod->nummodelsurfaces;j++, surf++)
2474 // we only need to have a drawsky function if it is used (usually only on world model)
2475 if (surf->shader == &Cshader_sky)
2476 mod->DrawSky = R_DrawBrushModelSky;
2477 for (k = 0;k < surf->numedges;k++)
2479 l = mod->surfedges[k + surf->firstedge];
2481 vec = mod->vertexes[mod->edges[l].v[0]].position;
2483 vec = mod->vertexes[mod->edges[-l].v[1]].position;
2484 if (mod->normalmins[0] > vec[0]) mod->normalmins[0] = vec[0];
2485 if (mod->normalmins[1] > vec[1]) mod->normalmins[1] = vec[1];
2486 if (mod->normalmins[2] > vec[2]) mod->normalmins[2] = vec[2];
2487 if (mod->normalmaxs[0] < vec[0]) mod->normalmaxs[0] = vec[0];
2488 if (mod->normalmaxs[1] < vec[1]) mod->normalmaxs[1] = vec[1];
2489 if (mod->normalmaxs[2] < vec[2]) mod->normalmaxs[2] = vec[2];
2490 dist = vec[0]*vec[0]+vec[1]*vec[1];
2491 if (modelyawradius < dist)
2492 modelyawradius = dist;
2493 dist += vec[2]*vec[2];
2494 if (modelradius < dist)
2498 modelyawradius = sqrt(modelyawradius);
2499 modelradius = sqrt(modelradius);
2500 mod->yawmins[0] = mod->yawmins[1] = -(mod->yawmaxs[0] = mod->yawmaxs[1] = modelyawradius);
2501 mod->yawmins[2] = mod->normalmins[2];
2502 mod->yawmaxs[2] = mod->normalmaxs[2];
2503 mod->rotatedmins[0] = mod->rotatedmins[1] = mod->rotatedmins[2] = -modelradius;
2504 mod->rotatedmaxs[0] = mod->rotatedmaxs[1] = mod->rotatedmaxs[2] = modelradius;
2505 // mod->modelradius = modelradius;
2507 // VectorCopy (bm->maxs, mod->maxs);
2508 // VectorCopy (bm->mins, mod->mins);
2510 // mod->radius = RadiusFromBounds (mod->mins, mod->maxs);
2512 mod->numleafs = bm->visleafs;
2514 mod->SERAddEntity = Mod_Brush_SERAddEntity;
2515 mod->Draw = R_DrawBrushModelNormal;
2516 mod->DrawShadow = NULL;
2518 Mod_BrushSortedSurfaces(mod, mainmempool);
2520 // LordHavoc: only register submodels if it is the world
2521 // (prevents bsp models from replacing world submodels)
2522 if (loadmodel->isworldmodel && i < (mod->numsubmodels - 1))
2525 // duplicate the basic information
2526 sprintf (name, "*%i", i+1);
2527 loadmodel = Mod_FindName (name);
2529 strcpy (loadmodel->name, name);
2530 // textures and memory belong to the main model
2531 loadmodel->texturepool = NULL;
2532 loadmodel->mempool = NULL;
2536 // Mem_CheckSentinelsGlobal();