model_shared.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   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.
   8
   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.
  12
  13 See the GNU General Public License for more details.
  14
  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.
  18
  19 */
  20 // models.c -- model loading and caching
  21
  22 // models are the only shared resource between a client and server running
  23 // on the same machine.
  24
  25 #include "quakedef.h"
  26 #include "image.h"
  27 #include "r_shadow.h"
  28
  29 cvar_t r_mipskins = {CVAR_SAVE, "r_mipskins", "0", "mipmaps model skins so they render faster in the distance and do not display noise artifacts, can cause discoloration of skins if they contain undesirable border colors"};
  30
  31 dp_model_t *loadmodel;
  32
  33 static mempool_t *mod_mempool;
  34 static memexpandablearray_t models;
  35
  36 static mempool_t* q3shaders_mem;
  37 typedef struct q3shader_hash_entry_s
  38 {
  39   q3shaderinfo_t shader;
  40   struct q3shader_hash_entry_s* chain;
  41 } q3shader_hash_entry_t;
  42 #define Q3SHADER_HASH_SIZE  1021
  43 typedef struct q3shader_data_s
  44 {
  45   memexpandablearray_t hash_entries;
  46   q3shader_hash_entry_t hash[Q3SHADER_HASH_SIZE];
  47   memexpandablearray_t char_ptrs;
  48 } q3shader_data_t;
  49 static q3shader_data_t* q3shader_data;
  50
  51 static void mod_start(void)
  52 {
  53         int i;
  54         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  55         dp_model_t *mod;
  56
  57         // parse the Q3 shader files
  58         Mod_LoadQ3Shaders();
  59
  60         for (i = 0;i < nummodels;i++)
  61                 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  62                         if (mod->used)
  63                                 Mod_LoadModel(mod, true, false, mod->isworldmodel);
  64 }
  65
  66 static void mod_shutdown(void)
  67 {
  68         int i;
  69         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  70         dp_model_t *mod;
  71
  72         for (i = 0;i < nummodels;i++)
  73                 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && (mod->loaded || mod->mempool))
  74                         Mod_UnloadModel(mod);
  75
  76         Mem_FreePool (&q3shaders_mem);
  77 }
  78
  79 static void mod_newmap(void)
  80 {
  81         msurface_t *surface;
  82         int i, j, k, surfacenum, ssize, tsize;
  83         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  84         dp_model_t *mod;
  85
  86         R_SkinFrame_PrepareForPurge();
  87         for (i = 0;i < nummodels;i++)
  88         {
  89                 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool && mod->data_textures)
  90                 {
  91                         for (j = 0;j < mod->num_textures;j++)
  92                         {
  93                                 for (k = 0;k < mod->data_textures[j].numskinframes;k++)
  94                                         R_SkinFrame_MarkUsed(mod->data_textures[j].skinframes[k]);
  95                                 for (k = 0;k < mod->data_textures[j].backgroundnumskinframes;k++)
  96                                         R_SkinFrame_MarkUsed(mod->data_textures[j].backgroundskinframes[k]);
  97                         }
  98                 }
  99         }
 100         R_SkinFrame_Purge();
 101
 102         if (!cl_stainmaps_clearonload.integer)
 103                 return;
 104
 105         for (i = 0;i < nummodels;i++)
 106         {
 107                 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool && mod->data_surfaces)
 108                 {
 109                         for (surfacenum = 0, surface = mod->data_surfaces;surfacenum < mod->num_surfaces;surfacenum++, surface++)
 110                         {
 111                                 if (surface->lightmapinfo && surface->lightmapinfo->stainsamples)
 112                                 {
 113                                         ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
 114                                         tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
 115                                         memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
 116                                         mod->brushq1.lightmapupdateflags[surfacenum] = true;
 117                                 }
 118                         }
 119                 }
 120         }
 121 }
 122
 123 /*
 124 ===============
 125 Mod_Init
 126 ===============
 127 */
 128 static void Mod_Print(void);
 129 static void Mod_Precache (void);
 130 static void Mod_BuildVBOs(void);
 131 void Mod_Init (void)
 132 {
 133         mod_mempool = Mem_AllocPool("modelinfo", 0, NULL);
 134         Mem_ExpandableArray_NewArray(&models, mod_mempool, sizeof(dp_model_t), 16);
 135
 136         Mod_BrushInit();
 137         Mod_AliasInit();
 138         Mod_SpriteInit();
 139
 140         Cvar_RegisterVariable(&r_mipskins);
 141         Cmd_AddCommand ("modellist", Mod_Print, "prints a list of loaded models");
 142         Cmd_AddCommand ("modelprecache", Mod_Precache, "load a model");
 143 }
 144
 145 void Mod_RenderInit(void)
 146 {
 147         R_RegisterModule("Models", mod_start, mod_shutdown, mod_newmap);
 148 }
 149
 150 void Mod_UnloadModel (dp_model_t *mod)
 151 {
 152         char name[MAX_QPATH];
 153         qboolean isworldmodel;
 154         qboolean used;
 155
 156         if (developer_loading.integer)
 157                 Con_Printf("unloading model %s\n", mod->name);
 158
 159         strlcpy(name, mod->name, sizeof(name));
 160         isworldmodel = mod->isworldmodel;
 161         used = mod->used;
 162         if (mod->surfmesh.ebo3i)
 163                 R_Mesh_DestroyBufferObject(mod->surfmesh.ebo3i);
 164         if (mod->surfmesh.ebo3s)
 165                 R_Mesh_DestroyBufferObject(mod->surfmesh.ebo3s);
 166         if (mod->surfmesh.vbo)
 167                 R_Mesh_DestroyBufferObject(mod->surfmesh.vbo);
 168         // free textures/memory attached to the model
 169         R_FreeTexturePool(&mod->texturepool);
 170         Mem_FreePool(&mod->mempool);
 171         // clear the struct to make it available
 172         memset(mod, 0, sizeof(dp_model_t));
 173         // restore the fields we want to preserve
 174         strlcpy(mod->name, name, sizeof(mod->name));
 175         mod->isworldmodel = isworldmodel;
 176         mod->used = used;
 177         mod->loaded = false;
 178 }
 179
 180 void R_Model_Null_Draw(entity_render_t *ent)
 181 {
 182         return;
 183 }
 184
 185 /*
 186 ==================
 187 Mod_LoadModel
 188
 189 Loads a model
 190 ==================
 191 */
 192 dp_model_t *Mod_LoadModel(dp_model_t *mod, qboolean crash, qboolean checkdisk, qboolean isworldmodel)
 193 {
 194         int num;
 195         unsigned int crc;
 196         void *buf;
 197         fs_offset_t filesize;
 198
 199         mod->used = true;
 200
 201         if (mod->name[0] == '*') // submodel
 202                 return mod;
 203
 204         if (!strcmp(mod->name, "null"))
 205         {
 206                 if (mod->loaded || mod->mempool)
 207                         Mod_UnloadModel(mod);
 208
 209                 if (developer_loading.integer)
 210                         Con_Printf("loading model %s\n", mod->name);
 211
 212                 mod->isworldmodel = isworldmodel;
 213                 mod->used = true;
 214                 mod->crc = -1;
 215                 mod->loaded = false;
 216
 217                 VectorClear(mod->normalmins);
 218                 VectorClear(mod->normalmaxs);
 219                 VectorClear(mod->yawmins);
 220                 VectorClear(mod->yawmaxs);
 221                 VectorClear(mod->rotatedmins);
 222                 VectorClear(mod->rotatedmaxs);
 223
 224                 mod->modeldatatypestring = "null";
 225                 mod->type = mod_null;
 226                 mod->Draw = R_Model_Null_Draw;
 227                 mod->numframes = 2;
 228                 mod->numskins = 1;
 229
 230                 // no fatal errors occurred, so this model is ready to use.
 231                 mod->loaded = true;
 232
 233                 return mod;
 234         }
 235
 236         crc = 0;
 237         buf = NULL;
 238
 239         // even if the model is loaded it still may need reloading...
 240
 241         // if the model is a worldmodel and is being referred to as a
 242         // non-worldmodel here, then it needs reloading to get rid of the
 243         // submodels
 244         if (mod->isworldmodel != isworldmodel)
 245                 mod->loaded = false;
 246
 247         // if it is not loaded or checkdisk is true we need to calculate the crc
 248         if (!mod->loaded || checkdisk)
 249         {
 250                 if (checkdisk && mod->loaded)
 251                         Con_DPrintf("checking model %s\n", mod->name);
 252                 buf = FS_LoadFile (mod->name, tempmempool, false, &filesize);
 253                 if (buf)
 254                 {
 255                         crc = CRC_Block((unsigned char *)buf, filesize);
 256                         // we need to reload the model if the crc does not match
 257                         if (mod->crc != crc)
 258                                 mod->loaded = false;
 259                 }
 260         }
 261
 262         // if the model is already loaded and checks passed, just return
 263         if (mod->loaded)
 264         {
 265                 if (buf)
 266                         Mem_Free(buf);
 267                 return mod;
 268         }
 269
 270         if (developer_loading.integer)
 271                 Con_Printf("loading model %s\n", mod->name);
 272
 273         // LordHavoc: unload the existing model in this slot (if there is one)
 274         if (mod->loaded || mod->mempool)
 275                 Mod_UnloadModel(mod);
 276
 277         // load the model
 278         mod->isworldmodel = isworldmodel;
 279         mod->used = true;
 280         mod->crc = crc;
 281         // errors can prevent the corresponding mod->loaded = true;
 282         mod->loaded = false;
 283
 284         // default model radius and bounding box (mainly for missing models)
 285         mod->radius = 16;
 286         VectorSet(mod->normalmins, -mod->radius, -mod->radius, -mod->radius);
 287         VectorSet(mod->normalmaxs, mod->radius, mod->radius, mod->radius);
 288         VectorSet(mod->yawmins, -mod->radius, -mod->radius, -mod->radius);
 289         VectorSet(mod->yawmaxs, mod->radius, mod->radius, mod->radius);
 290         VectorSet(mod->rotatedmins, -mod->radius, -mod->radius, -mod->radius);
 291         VectorSet(mod->rotatedmaxs, mod->radius, mod->radius, mod->radius);
 292
 293         // if we're loading a worldmodel, then this is a level change
 294         if (mod->isworldmodel)
 295         {
 296                 // clear out any stale submodels or worldmodels lying around
 297                 // if we did this clear before now, an error might abort loading and
 298                 // leave things in a bad state
 299                 Mod_RemoveStaleWorldModels(mod);
 300                 // reload q3 shaders, to make sure they are ready to go for this level
 301                 // (including any models loaded for this level)
 302                 Mod_LoadQ3Shaders();
 303         }
 304
 305         if (buf)
 306         {
 307                 char *bufend = (char *)buf + filesize;
 308
 309                 // all models use memory, so allocate a memory pool
 310                 mod->mempool = Mem_AllocPool(mod->name, 0, NULL);
 311
 312                 num = LittleLong(*((int *)buf));
 313                 // call the apropriate loader
 314                 loadmodel = mod;
 315                      if (!memcmp(buf, "IDPO", 4)) Mod_IDP0_Load(mod, buf, bufend);
 316                 else if (!memcmp(buf, "IDP2", 4)) Mod_IDP2_Load(mod, buf, bufend);
 317                 else if (!memcmp(buf, "IDP3", 4)) Mod_IDP3_Load(mod, buf, bufend);
 318                 else if (!memcmp(buf, "IDSP", 4)) Mod_IDSP_Load(mod, buf, bufend);
 319                 else if (!memcmp(buf, "IDS2", 4)) Mod_IDS2_Load(mod, buf, bufend);
 320                 else if (!memcmp(buf, "IBSP", 4)) Mod_IBSP_Load(mod, buf, bufend);
 321                 else if (!memcmp(buf, "ZYMOTICMODEL", 12)) Mod_ZYMOTICMODEL_Load(mod, buf, bufend);
 322                 else if (!memcmp(buf, "DARKPLACESMODEL", 16)) Mod_DARKPLACESMODEL_Load(mod, buf, bufend);
 323                 else if (!memcmp(buf, "ACTRHEAD", 8)) Mod_PSKMODEL_Load(mod, buf, bufend);
 324                 else if (strlen(mod->name) >= 4 && !strcmp(mod->name + strlen(mod->name) - 4, ".map")) Mod_MAP_Load(mod, buf, bufend);
 325                 else if (num == BSPVERSION || num == 30) Mod_Q1BSP_Load(mod, buf, bufend);
 326                 else Con_Printf("Mod_LoadModel: model \"%s\" is of unknown/unsupported type\n", mod->name);
 327                 Mem_Free(buf);
 328
 329                 Mod_BuildVBOs();
 330
 331                 // no fatal errors occurred, so this model is ready to use.
 332                 mod->loaded = true;
 333         }
 334         else if (crash)
 335         {
 336                 // LordHavoc: Sys_Error was *ANNOYING*
 337                 Con_Printf ("Mod_LoadModel: %s not found\n", mod->name);
 338         }
 339         return mod;
 340 }
 341
 342 void Mod_ClearUsed(void)
 343 {
 344         int i;
 345         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 346         dp_model_t *mod;
 347         for (i = 0;i < nummodels;i++)
 348                 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0])
 349                         mod->used = false;
 350 }
 351
 352 void Mod_PurgeUnused(void)
 353 {
 354         int i;
 355         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 356         dp_model_t *mod;
 357         for (i = 0;i < nummodels;i++)
 358         {
 359                 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !mod->used)
 360                 {
 361                         Mod_UnloadModel(mod);
 362                         Mem_ExpandableArray_FreeRecord(&models, mod);
 363                 }
 364         }
 365 }
 366
 367 // only used during loading!
 368 void Mod_RemoveStaleWorldModels(dp_model_t *skip)
 369 {
 370         int i;
 371         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 372         dp_model_t *mod;
 373         for (i = 0;i < nummodels;i++)
 374         {
 375                 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->isworldmodel && mod->loaded && skip != mod)
 376                 {
 377                         Mod_UnloadModel(mod);
 378                         mod->isworldmodel = false;
 379                         mod->used = false;
 380                 }
 381         }
 382 }
 383
 384 /*
 385 ==================
 386 Mod_FindName
 387
 388 ==================
 389 */
 390 dp_model_t *Mod_FindName(const char *name)
 391 {
 392         int i;
 393         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 394         dp_model_t *mod;
 395
 396         if (!name[0])
 397                 Host_Error ("Mod_ForName: NULL name");
 398
 399         // search the currently loaded models
 400         for (i = 0;i < nummodels;i++)
 401         {
 402                 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !strcmp(mod->name, name))
 403                 {
 404                         mod->used = true;
 405                         return mod;
 406                 }
 407         }
 408
 409         // no match found, create a new one
 410         mod = Mem_ExpandableArray_AllocRecord(&models);
 411         strlcpy(mod->name, name, sizeof(mod->name));
 412         mod->loaded = false;
 413         mod->used = true;
 414         return mod;
 415 }
 416
 417 /*
 418 ==================
 419 Mod_ForName
 420
 421 Loads in a model for the given name
 422 ==================
 423 */
 424 dp_model_t *Mod_ForName(const char *name, qboolean crash, qboolean checkdisk, qboolean isworldmodel)
 425 {
 426         dp_model_t *model;
 427         model = Mod_FindName(name);
 428         if (model->name[0] != '*' && (!model->loaded || checkdisk))
 429                 Mod_LoadModel(model, crash, checkdisk, isworldmodel);
 430         return model;
 431 }
 432
 433 /*
 434 ==================
 435 Mod_Reload
 436
 437 Reloads all models if they have changed
 438 ==================
 439 */
 440 void Mod_Reload(void)
 441 {
 442         int i;
 443         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 444         dp_model_t *mod;
 445         for (i = 0;i < nummodels;i++)
 446                 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 447                         Mod_LoadModel(mod, true, true, mod->isworldmodel);
 448 }
 449
 450 unsigned char *mod_base;
 451
 452
 453 //=============================================================================
 454
 455 /*
 456 ================
 457 Mod_Print
 458 ================
 459 */
 460 static void Mod_Print(void)
 461 {
 462         int i;
 463         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 464         dp_model_t *mod;
 465
 466         Con_Print("Loaded models:\n");
 467         for (i = 0;i < nummodels;i++)
 468                 if ((mod = Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0])
 469                         Con_Printf("%4iK %s\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name);
 470 }
 471
 472 /*
 473 ================
 474 Mod_Precache
 475 ================
 476 */
 477 static void Mod_Precache(void)
 478 {
 479         if (Cmd_Argc() == 2)
 480                 Mod_ForName(Cmd_Argv(1), false, true, cl.worldmodel && !strcasecmp(Cmd_Argv(1), cl.worldmodel->name));
 481         else
 482                 Con_Print("usage: modelprecache <filename>\n");
 483 }
 484
 485 int Mod_BuildVertexRemapTableFromElements(int numelements, const int *elements, int numvertices, int *remapvertices)
 486 {
 487         int i, count;
 488         unsigned char *used;
 489         used = (unsigned char *)Mem_Alloc(tempmempool, numvertices);
 490         memset(used, 0, numvertices);
 491         for (i = 0;i < numelements;i++)
 492                 used[elements[i]] = 1;
 493         for (i = 0, count = 0;i < numvertices;i++)
 494                 remapvertices[i] = used[i] ? count++ : -1;
 495         Mem_Free(used);
 496         return count;
 497 }
 498
 499 #if 1
 500 // fast way, using an edge hash
 501 #define TRIANGLEEDGEHASH 8192
 502 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 503 {
 504         int i, j, p, e1, e2, *n, hashindex, count, match;
 505         const int *e;
 506         typedef struct edgehashentry_s
 507         {
 508                 struct edgehashentry_s *next;
 509                 int triangle;
 510                 int element[2];
 511         }
 512         edgehashentry_t;
 513         edgehashentry_t *edgehash[TRIANGLEEDGEHASH], *edgehashentries, edgehashentriesbuffer[TRIANGLEEDGEHASH*3], *hash;
 514         memset(edgehash, 0, sizeof(edgehash));
 515         edgehashentries = edgehashentriesbuffer;
 516         // if there are too many triangles for the stack array, allocate larger buffer
 517         if (numtriangles > TRIANGLEEDGEHASH)
 518                 edgehashentries = (edgehashentry_t *)Mem_Alloc(tempmempool, numtriangles * 3 * sizeof(edgehashentry_t));
 519         // find neighboring triangles
 520         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 521         {
 522                 for (j = 0, p = 2;j < 3;p = j, j++)
 523                 {
 524                         e1 = e[p];
 525                         e2 = e[j];
 526                         // this hash index works for both forward and backward edges
 527                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 528                         hash = edgehashentries + i * 3 + j;
 529                         hash->next = edgehash[hashindex];
 530                         edgehash[hashindex] = hash;
 531                         hash->triangle = i;
 532                         hash->element[0] = e1;
 533                         hash->element[1] = e2;
 534                 }
 535         }
 536         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 537         {
 538                 for (j = 0, p = 2;j < 3;p = j, j++)
 539                 {
 540                         e1 = e[p];
 541                         e2 = e[j];
 542                         // this hash index works for both forward and backward edges
 543                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 544                         count = 0;
 545                         match = -1;
 546                         for (hash = edgehash[hashindex];hash;hash = hash->next)
 547                         {
 548                                 if (hash->element[0] == e2 && hash->element[1] == e1)
 549                                 {
 550                                         if (hash->triangle != i)
 551                                                 match = hash->triangle;
 552                                         count++;
 553                                 }
 554                                 else if ((hash->element[0] == e1 && hash->element[1] == e2))
 555                                         count++;
 556                         }
 557                         // detect edges shared by three triangles and make them seams
 558                         if (count > 2)
 559                                 match = -1;
 560                         n[p] = match;
 561                 }
 562         }
 563         // free the allocated buffer
 564         if (edgehashentries != edgehashentriesbuffer)
 565                 Mem_Free(edgehashentries);
 566 }
 567 #else
 568 // very slow but simple way
 569 static int Mod_FindTriangleWithEdge(const int *elements, int numtriangles, int start, int end, int ignore)
 570 {
 571         int i, match, count;
 572         count = 0;
 573         match = -1;
 574         for (i = 0;i < numtriangles;i++, elements += 3)
 575         {
 576                      if ((elements[0] == start && elements[1] == end)
 577                       || (elements[1] == start && elements[2] == end)
 578                       || (elements[2] == start && elements[0] == end))
 579                 {
 580                         if (i != ignore)
 581                                 match = i;
 582                         count++;
 583                 }
 584                 else if ((elements[1] == start && elements[0] == end)
 585                       || (elements[2] == start && elements[1] == end)
 586                       || (elements[0] == start && elements[2] == end))
 587                         count++;
 588         }
 589         // detect edges shared by three triangles and make them seams
 590         if (count > 2)
 591                 match = -1;
 592         return match;
 593 }
 594
 595 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 596 {
 597         int i, *n;
 598         const int *e;
 599         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 600         {
 601                 n[0] = Mod_FindTriangleWithEdge(elements, numtriangles, e[1], e[0], i);
 602                 n[1] = Mod_FindTriangleWithEdge(elements, numtriangles, e[2], e[1], i);
 603                 n[2] = Mod_FindTriangleWithEdge(elements, numtriangles, e[0], e[2], i);
 604         }
 605 }
 606 #endif
 607
 608 void Mod_ValidateElements(int *elements, int numtriangles, int firstvertex, int numverts, const char *filename, int fileline)
 609 {
 610         int i, warned = false, endvertex = firstvertex + numverts;
 611         for (i = 0;i < numtriangles * 3;i++)
 612         {
 613                 if (elements[i] < firstvertex || elements[i] >= endvertex)
 614                 {
 615                         if (!warned)
 616                         {
 617                                 warned = true;
 618                                 Con_Printf("Mod_ValidateElements: out of bounds elements detected at %s:%d\n", filename, fileline);
 619                         }
 620                         elements[i] = firstvertex;
 621                 }
 622         }
 623 }
 624
 625 // warning: this is an expensive function!
 626 void Mod_BuildNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const int *elements, float *normal3f, qboolean areaweighting)
 627 {
 628         int i, j;
 629         const int *element;
 630         float *vectorNormal;
 631         float areaNormal[3];
 632         // clear the vectors
 633         memset(normal3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 634         // process each vertex of each triangle and accumulate the results
 635         // use area-averaging, to make triangles with a big area have a bigger
 636         // weighting on the vertex normal than triangles with a small area
 637         // to do so, just add the 'normals' together (the bigger the area
 638         // the greater the length of the normal is
 639         element = elements;
 640         for (i = 0; i < numtriangles; i++, element += 3)
 641         {
 642                 TriangleNormal(
 643                         vertex3f + element[0] * 3,
 644                         vertex3f + element[1] * 3,
 645                         vertex3f + element[2] * 3,
 646                         areaNormal
 647                         );
 648
 649                 if (!areaweighting)
 650                         VectorNormalize(areaNormal);
 651
 652                 for (j = 0;j < 3;j++)
 653                 {
 654                         vectorNormal = normal3f + element[j] * 3;
 655                         vectorNormal[0] += areaNormal[0];
 656                         vectorNormal[1] += areaNormal[1];
 657                         vectorNormal[2] += areaNormal[2];
 658                 }
 659         }
 660         // and just normalize the accumulated vertex normal in the end
 661         vectorNormal = normal3f + 3 * firstvertex;
 662         for (i = 0; i < numvertices; i++, vectorNormal += 3)
 663                 VectorNormalize(vectorNormal);
 664 }
 665
 666 void Mod_BuildBumpVectors(const float *v0, const float *v1, const float *v2, const float *tc0, const float *tc1, const float *tc2, float *svector3f, float *tvector3f, float *normal3f)
 667 {
 668         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 669         // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 670         // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 671
 672         // 6 multiply, 9 subtract
 673         VectorSubtract(v1, v0, v10);
 674         VectorSubtract(v2, v0, v20);
 675         normal3f[0] = v20[1] * v10[2] - v20[2] * v10[1];
 676         normal3f[1] = v20[2] * v10[0] - v20[0] * v10[2];
 677         normal3f[2] = v20[0] * v10[1] - v20[1] * v10[0];
 678         // 12 multiply, 10 subtract
 679         tc10[1] = tc1[1] - tc0[1];
 680         tc20[1] = tc2[1] - tc0[1];
 681         svector3f[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 682         svector3f[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 683         svector3f[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 684         tc10[0] = tc1[0] - tc0[0];
 685         tc20[0] = tc2[0] - tc0[0];
 686         tvector3f[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 687         tvector3f[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 688         tvector3f[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 689         // 12 multiply, 4 add, 6 subtract
 690         f = DotProduct(svector3f, normal3f);
 691         svector3f[0] -= f * normal3f[0];
 692         svector3f[1] -= f * normal3f[1];
 693         svector3f[2] -= f * normal3f[2];
 694         f = DotProduct(tvector3f, normal3f);
 695         tvector3f[0] -= f * normal3f[0];
 696         tvector3f[1] -= f * normal3f[1];
 697         tvector3f[2] -= f * normal3f[2];
 698         // if texture is mapped the wrong way (counterclockwise), the tangents
 699         // have to be flipped, this is detected by calculating a normal from the
 700         // two tangents, and seeing if it is opposite the surface normal
 701         // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 702         CrossProduct(tvector3f, svector3f, tangentcross);
 703         if (DotProduct(tangentcross, normal3f) < 0)
 704         {
 705                 VectorNegate(svector3f, svector3f);
 706                 VectorNegate(tvector3f, tvector3f);
 707         }
 708 }
 709
 710 // warning: this is a very expensive function!
 711 void Mod_BuildTextureVectorsFromNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const float *texcoord2f, const float *normal3f, const int *elements, float *svector3f, float *tvector3f, qboolean areaweighting)
 712 {
 713         int i, tnum;
 714         float sdir[3], tdir[3], normal[3], *sv, *tv;
 715         const float *v0, *v1, *v2, *tc0, *tc1, *tc2, *n;
 716         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 717         const int *e;
 718         // clear the vectors
 719         memset(svector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 720         memset(tvector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 721         // process each vertex of each triangle and accumulate the results
 722         for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
 723         {
 724                 v0 = vertex3f + e[0] * 3;
 725                 v1 = vertex3f + e[1] * 3;
 726                 v2 = vertex3f + e[2] * 3;
 727                 tc0 = texcoord2f + e[0] * 2;
 728                 tc1 = texcoord2f + e[1] * 2;
 729                 tc2 = texcoord2f + e[2] * 2;
 730
 731                 // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 732                 // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 733
 734                 // calculate the edge directions and surface normal
 735                 // 6 multiply, 9 subtract
 736                 VectorSubtract(v1, v0, v10);
 737                 VectorSubtract(v2, v0, v20);
 738                 normal[0] = v20[1] * v10[2] - v20[2] * v10[1];
 739                 normal[1] = v20[2] * v10[0] - v20[0] * v10[2];
 740                 normal[2] = v20[0] * v10[1] - v20[1] * v10[0];
 741
 742                 // calculate the tangents
 743                 // 12 multiply, 10 subtract
 744                 tc10[1] = tc1[1] - tc0[1];
 745                 tc20[1] = tc2[1] - tc0[1];
 746                 sdir[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 747                 sdir[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 748                 sdir[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 749                 tc10[0] = tc1[0] - tc0[0];
 750                 tc20[0] = tc2[0] - tc0[0];
 751                 tdir[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 752                 tdir[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 753                 tdir[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 754
 755                 // if texture is mapped the wrong way (counterclockwise), the tangents
 756                 // have to be flipped, this is detected by calculating a normal from the
 757                 // two tangents, and seeing if it is opposite the surface normal
 758                 // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 759                 CrossProduct(tdir, sdir, tangentcross);
 760                 if (DotProduct(tangentcross, normal) < 0)
 761                 {
 762                         VectorNegate(sdir, sdir);
 763                         VectorNegate(tdir, tdir);
 764                 }
 765
 766                 if (!areaweighting)
 767                 {
 768                         VectorNormalize(sdir);
 769                         VectorNormalize(tdir);
 770                 }
 771                 for (i = 0;i < 3;i++)
 772                 {
 773                         VectorAdd(svector3f + e[i]*3, sdir, svector3f + e[i]*3);
 774                         VectorAdd(tvector3f + e[i]*3, tdir, tvector3f + e[i]*3);
 775                 }
 776         }
 777         // make the tangents completely perpendicular to the surface normal, and
 778         // then normalize them
 779         // 16 assignments, 2 divide, 2 sqrt, 2 negates, 14 adds, 24 multiplies
 780         for (i = 0, sv = svector3f + 3 * firstvertex, tv = tvector3f + 3 * firstvertex, n = normal3f + 3 * firstvertex;i < numvertices;i++, sv += 3, tv += 3, n += 3)
 781         {
 782                 f = -DotProduct(sv, n);
 783                 VectorMA(sv, f, n, sv);
 784                 VectorNormalize(sv);
 785                 f = -DotProduct(tv, n);
 786                 VectorMA(tv, f, n, tv);
 787                 VectorNormalize(tv);
 788         }
 789 }
 790
 791 void Mod_AllocSurfMesh(mempool_t *mempool, int numvertices, int numtriangles, qboolean lightmapoffsets, qboolean vertexcolors, qboolean neighbors)
 792 {
 793         unsigned char *data;
 794         data = (unsigned char *)Mem_Alloc(mempool, numvertices * (3 + 3 + 3 + 3 + 2 + 2 + (vertexcolors ? 4 : 0)) * sizeof(float) + numvertices * (lightmapoffsets ? 1 : 0) * sizeof(int) + numtriangles * (3 + (neighbors ? 3 : 0)) * sizeof(int) + (numvertices <= 65536 ? numtriangles * sizeof(unsigned short[3]) : 0));
 795         loadmodel->surfmesh.num_vertices = numvertices;
 796         loadmodel->surfmesh.num_triangles = numtriangles;
 797         if (loadmodel->surfmesh.num_vertices)
 798         {
 799                 loadmodel->surfmesh.data_vertex3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 800                 loadmodel->surfmesh.data_svector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 801                 loadmodel->surfmesh.data_tvector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 802                 loadmodel->surfmesh.data_normal3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 803                 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 804                 loadmodel->surfmesh.data_texcoordlightmap2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 805                 if (vertexcolors)
 806                         loadmodel->surfmesh.data_lightmapcolor4f = (float *)data, data += sizeof(float[4]) * loadmodel->surfmesh.num_vertices;
 807                 if (lightmapoffsets)
 808                         loadmodel->surfmesh.data_lightmapoffsets = (int *)data, data += sizeof(int) * loadmodel->surfmesh.num_vertices;
 809         }
 810         if (loadmodel->surfmesh.num_triangles)
 811         {
 812                 loadmodel->surfmesh.data_element3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
 813                 if (neighbors)
 814                         loadmodel->surfmesh.data_neighbor3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
 815                 if (loadmodel->surfmesh.num_vertices <= 65536)
 816                         loadmodel->surfmesh.data_element3s = (unsigned short *)data, data += sizeof(unsigned short[3]) * loadmodel->surfmesh.num_triangles;
 817         }
 818 }
 819
 820 shadowmesh_t *Mod_ShadowMesh_Alloc(mempool_t *mempool, int maxverts, int maxtriangles, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, int light, int neighbors, int expandable)
 821 {
 822         shadowmesh_t *newmesh;
 823         unsigned char *data;
 824         int size;
 825         size = sizeof(shadowmesh_t);
 826         size += maxverts * sizeof(float[3]);
 827         if (light)
 828                 size += maxverts * sizeof(float[11]);
 829         size += maxtriangles * sizeof(int[3]);
 830         if (maxverts <= 65536)
 831                 size += maxtriangles * sizeof(unsigned short[3]);
 832         if (neighbors)
 833                 size += maxtriangles * sizeof(int[3]);
 834         if (expandable)
 835                 size += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *) + maxverts * sizeof(shadowmeshvertexhash_t);
 836         data = (unsigned char *)Mem_Alloc(mempool, size);
 837         newmesh = (shadowmesh_t *)data;data += sizeof(*newmesh);
 838         newmesh->map_diffuse = map_diffuse;
 839         newmesh->map_specular = map_specular;
 840         newmesh->map_normal = map_normal;
 841         newmesh->maxverts = maxverts;
 842         newmesh->maxtriangles = maxtriangles;
 843         newmesh->numverts = 0;
 844         newmesh->numtriangles = 0;
 845
 846         newmesh->vertex3f = (float *)data;data += maxverts * sizeof(float[3]);
 847         if (light)
 848         {
 849                 newmesh->svector3f = (float *)data;data += maxverts * sizeof(float[3]);
 850                 newmesh->tvector3f = (float *)data;data += maxverts * sizeof(float[3]);
 851                 newmesh->normal3f = (float *)data;data += maxverts * sizeof(float[3]);
 852                 newmesh->texcoord2f = (float *)data;data += maxverts * sizeof(float[2]);
 853         }
 854         newmesh->element3i = (int *)data;data += maxtriangles * sizeof(int[3]);
 855         if (neighbors)
 856         {
 857                 newmesh->neighbor3i = (int *)data;data += maxtriangles * sizeof(int[3]);
 858         }
 859         if (expandable)
 860         {
 861                 newmesh->vertexhashtable = (shadowmeshvertexhash_t **)data;data += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *);
 862                 newmesh->vertexhashentries = (shadowmeshvertexhash_t *)data;data += maxverts * sizeof(shadowmeshvertexhash_t);
 863         }
 864         if (maxverts <= 65536)
 865                 newmesh->element3s = (unsigned short *)data;data += maxtriangles * sizeof(unsigned short[3]);
 866         return newmesh;
 867 }
 868
 869 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh, int light, int neighbors)
 870 {
 871         shadowmesh_t *newmesh;
 872         newmesh = Mod_ShadowMesh_Alloc(mempool, oldmesh->numverts, oldmesh->numtriangles, oldmesh->map_diffuse, oldmesh->map_specular, oldmesh->map_normal, light, neighbors, false);
 873         newmesh->numverts = oldmesh->numverts;
 874         newmesh->numtriangles = oldmesh->numtriangles;
 875
 876         memcpy(newmesh->vertex3f, oldmesh->vertex3f, oldmesh->numverts * sizeof(float[3]));
 877         if (newmesh->svector3f && oldmesh->svector3f)
 878         {
 879                 memcpy(newmesh->svector3f, oldmesh->svector3f, oldmesh->numverts * sizeof(float[3]));
 880                 memcpy(newmesh->tvector3f, oldmesh->tvector3f, oldmesh->numverts * sizeof(float[3]));
 881                 memcpy(newmesh->normal3f, oldmesh->normal3f, oldmesh->numverts * sizeof(float[3]));
 882                 memcpy(newmesh->texcoord2f, oldmesh->texcoord2f, oldmesh->numverts * sizeof(float[2]));
 883         }
 884         memcpy(newmesh->element3i, oldmesh->element3i, oldmesh->numtriangles * sizeof(int[3]));
 885         if (newmesh->neighbor3i && oldmesh->neighbor3i)
 886                 memcpy(newmesh->neighbor3i, oldmesh->neighbor3i, oldmesh->numtriangles * sizeof(int[3]));
 887         return newmesh;
 888 }
 889
 890 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *vertex14f)
 891 {
 892         int hashindex, vnum;
 893         shadowmeshvertexhash_t *hash;
 894         // this uses prime numbers intentionally
 895         hashindex = (unsigned int) (vertex14f[0] * 2003 + vertex14f[1] * 4001 + vertex14f[2] * 7919) % SHADOWMESHVERTEXHASH;
 896         for (hash = mesh->vertexhashtable[hashindex];hash;hash = hash->next)
 897         {
 898                 vnum = (hash - mesh->vertexhashentries);
 899                 if ((mesh->vertex3f == NULL || (mesh->vertex3f[vnum * 3 + 0] == vertex14f[0] && mesh->vertex3f[vnum * 3 + 1] == vertex14f[1] && mesh->vertex3f[vnum * 3 + 2] == vertex14f[2]))
 900                  && (mesh->svector3f == NULL || (mesh->svector3f[vnum * 3 + 0] == vertex14f[3] && mesh->svector3f[vnum * 3 + 1] == vertex14f[4] && mesh->svector3f[vnum * 3 + 2] == vertex14f[5]))
 901                  && (mesh->tvector3f == NULL || (mesh->tvector3f[vnum * 3 + 0] == vertex14f[6] && mesh->tvector3f[vnum * 3 + 1] == vertex14f[7] && mesh->tvector3f[vnum * 3 + 2] == vertex14f[8]))
 902                  && (mesh->normal3f == NULL || (mesh->normal3f[vnum * 3 + 0] == vertex14f[9] && mesh->normal3f[vnum * 3 + 1] == vertex14f[10] && mesh->normal3f[vnum * 3 + 2] == vertex14f[11]))
 903                  && (mesh->texcoord2f == NULL || (mesh->texcoord2f[vnum * 2 + 0] == vertex14f[12] && mesh->texcoord2f[vnum * 2 + 1] == vertex14f[13])))
 904                         return hash - mesh->vertexhashentries;
 905         }
 906         vnum = mesh->numverts++;
 907         hash = mesh->vertexhashentries + vnum;
 908         hash->next = mesh->vertexhashtable[hashindex];
 909         mesh->vertexhashtable[hashindex] = hash;
 910         if (mesh->vertex3f) {mesh->vertex3f[vnum * 3 + 0] = vertex14f[0];mesh->vertex3f[vnum * 3 + 1] = vertex14f[1];mesh->vertex3f[vnum * 3 + 2] = vertex14f[2];}
 911         if (mesh->svector3f) {mesh->svector3f[vnum * 3 + 0] = vertex14f[3];mesh->svector3f[vnum * 3 + 1] = vertex14f[4];mesh->svector3f[vnum * 3 + 2] = vertex14f[5];}
 912         if (mesh->tvector3f) {mesh->tvector3f[vnum * 3 + 0] = vertex14f[6];mesh->tvector3f[vnum * 3 + 1] = vertex14f[7];mesh->tvector3f[vnum * 3 + 2] = vertex14f[8];}
 913         if (mesh->normal3f) {mesh->normal3f[vnum * 3 + 0] = vertex14f[9];mesh->normal3f[vnum * 3 + 1] = vertex14f[10];mesh->normal3f[vnum * 3 + 2] = vertex14f[11];}
 914         if (mesh->texcoord2f) {mesh->texcoord2f[vnum * 2 + 0] = vertex14f[12];mesh->texcoord2f[vnum * 2 + 1] = vertex14f[13];}
 915         return vnum;
 916 }
 917
 918 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex14f)
 919 {
 920         if (mesh->numtriangles == 0)
 921         {
 922                 // set the properties on this empty mesh to be more favorable...
 923                 // (note: this case only occurs for the first triangle added to a new mesh chain)
 924                 mesh->map_diffuse = map_diffuse;
 925                 mesh->map_specular = map_specular;
 926                 mesh->map_normal = map_normal;
 927         }
 928         while (mesh->map_diffuse != map_diffuse || mesh->map_specular != map_specular || mesh->map_normal != map_normal || mesh->numverts + 3 > mesh->maxverts || mesh->numtriangles + 1 > mesh->maxtriangles)
 929         {
 930                 if (mesh->next == NULL)
 931                         mesh->next = Mod_ShadowMesh_Alloc(mempool, max(mesh->maxverts, 300), max(mesh->maxtriangles, 100), map_diffuse, map_specular, map_normal, mesh->svector3f != NULL, mesh->neighbor3i != NULL, true);
 932                 mesh = mesh->next;
 933         }
 934         mesh->element3i[mesh->numtriangles * 3 + 0] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 0);
 935         mesh->element3i[mesh->numtriangles * 3 + 1] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 1);
 936         mesh->element3i[mesh->numtriangles * 3 + 2] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 2);
 937         mesh->numtriangles++;
 938 }
 939
 940 void Mod_ShadowMesh_AddMesh(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, const float *vertex3f, const float *svector3f, const float *tvector3f, const float *normal3f, const float *texcoord2f, int numtris, const int *element3i)
 941 {
 942         int i, j, e;
 943         float vbuf[3*14], *v;
 944         memset(vbuf, 0, sizeof(vbuf));
 945         for (i = 0;i < numtris;i++)
 946         {
 947                 for (j = 0, v = vbuf;j < 3;j++, v += 14)
 948                 {
 949                         e = *element3i++;
 950                         if (vertex3f)
 951                         {
 952                                 v[0] = vertex3f[e * 3 + 0];
 953                                 v[1] = vertex3f[e * 3 + 1];
 954                                 v[2] = vertex3f[e * 3 + 2];
 955                         }
 956                         if (svector3f)
 957                         {
 958                                 v[3] = svector3f[e * 3 + 0];
 959                                 v[4] = svector3f[e * 3 + 1];
 960                                 v[5] = svector3f[e * 3 + 2];
 961                         }
 962                         if (tvector3f)
 963                         {
 964                                 v[6] = tvector3f[e * 3 + 0];
 965                                 v[7] = tvector3f[e * 3 + 1];
 966                                 v[8] = tvector3f[e * 3 + 2];
 967                         }
 968                         if (normal3f)
 969                         {
 970                                 v[9] = normal3f[e * 3 + 0];
 971                                 v[10] = normal3f[e * 3 + 1];
 972                                 v[11] = normal3f[e * 3 + 2];
 973                         }
 974                         if (texcoord2f)
 975                         {
 976                                 v[12] = texcoord2f[e * 2 + 0];
 977                                 v[13] = texcoord2f[e * 2 + 1];
 978                         }
 979                 }
 980                 Mod_ShadowMesh_AddTriangle(mempool, mesh, map_diffuse, map_specular, map_normal, vbuf);
 981         }
 982 }
 983
 984 shadowmesh_t *Mod_ShadowMesh_Begin(mempool_t *mempool, int maxverts, int maxtriangles, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, int light, int neighbors, int expandable)
 985 {
 986         return Mod_ShadowMesh_Alloc(mempool, maxverts, maxtriangles, map_diffuse, map_specular, map_normal, light, neighbors, expandable);
 987 }
 988
 989 static void Mod_ShadowMesh_CreateVBOs(shadowmesh_t *mesh)
 990 {
 991         if (!gl_support_arb_vertex_buffer_object)
 992                 return;
 993
 994         // element buffer is easy because it's just one array
 995         if (mesh->numtriangles)
 996         {
 997                 if (mesh->element3s)
 998                         mesh->ebo3s = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, mesh->element3s, mesh->numtriangles * sizeof(unsigned short[3]), "shadowmesh");
 999                 else
1000                         mesh->ebo3i = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, mesh->element3i, mesh->numtriangles * sizeof(unsigned int[3]), "shadowmesh");
1001         }
1002
1003         // vertex buffer is several arrays and we put them in the same buffer
1004         //
1005         // is this wise?  the texcoordtexture2f array is used with dynamic
1006         // vertex/svector/tvector/normal when rendering animated models, on the
1007         // other hand animated models don't use a lot of vertices anyway...
1008         if (mesh->numverts)
1009         {
1010                 size_t size;
1011                 unsigned char *mem;
1012                 size = 0;
1013                 mesh->vbooffset_vertex3f           = size;if (mesh->vertex3f          ) size += mesh->numverts * sizeof(float[3]);
1014                 mesh->vbooffset_svector3f          = size;if (mesh->svector3f         ) size += mesh->numverts * sizeof(float[3]);
1015                 mesh->vbooffset_tvector3f          = size;if (mesh->tvector3f         ) size += mesh->numverts * sizeof(float[3]);
1016                 mesh->vbooffset_normal3f           = size;if (mesh->normal3f          ) size += mesh->numverts * sizeof(float[3]);
1017                 mesh->vbooffset_texcoord2f         = size;if (mesh->texcoord2f        ) size += mesh->numverts * sizeof(float[2]);
1018                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
1019                 if (mesh->vertex3f          ) memcpy(mem + mesh->vbooffset_vertex3f          , mesh->vertex3f          , mesh->numverts * sizeof(float[3]));
1020                 if (mesh->svector3f         ) memcpy(mem + mesh->vbooffset_svector3f         , mesh->svector3f         , mesh->numverts * sizeof(float[3]));
1021                 if (mesh->tvector3f         ) memcpy(mem + mesh->vbooffset_tvector3f         , mesh->tvector3f         , mesh->numverts * sizeof(float[3]));
1022                 if (mesh->normal3f          ) memcpy(mem + mesh->vbooffset_normal3f          , mesh->normal3f          , mesh->numverts * sizeof(float[3]));
1023                 if (mesh->texcoord2f        ) memcpy(mem + mesh->vbooffset_texcoord2f        , mesh->texcoord2f        , mesh->numverts * sizeof(float[2]));
1024                 mesh->vbo = R_Mesh_CreateStaticBufferObject(GL_ARRAY_BUFFER_ARB, mem, size, "shadowmesh");
1025                 Mem_Free(mem);
1026         }
1027 }
1028
1029 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh, qboolean light, qboolean neighbors, qboolean createvbo)
1030 {
1031         shadowmesh_t *mesh, *newmesh, *nextmesh;
1032         // reallocate meshs to conserve space
1033         for (mesh = firstmesh, firstmesh = NULL;mesh;mesh = nextmesh)
1034         {
1035                 nextmesh = mesh->next;
1036                 if (mesh->numverts >= 3 && mesh->numtriangles >= 1)
1037                 {
1038                         newmesh = Mod_ShadowMesh_ReAlloc(mempool, mesh, light, neighbors);
1039                         newmesh->next = firstmesh;
1040                         firstmesh = newmesh;
1041                         if (newmesh->element3s)
1042                         {
1043                                 int i;
1044                                 for (i = 0;i < newmesh->numtriangles*3;i++)
1045                                         newmesh->element3s[i] = newmesh->element3i[i];
1046                         }
1047                         if (createvbo)
1048                                 Mod_ShadowMesh_CreateVBOs(newmesh);
1049                 }
1050                 Mem_Free(mesh);
1051         }
1052         return firstmesh;
1053 }
1054
1055 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius)
1056 {
1057         int i;
1058         shadowmesh_t *mesh;
1059         vec3_t nmins, nmaxs, ncenter, temp;
1060         float nradius2, dist2, *v;
1061         VectorClear(nmins);
1062         VectorClear(nmaxs);
1063         // calculate bbox
1064         for (mesh = firstmesh;mesh;mesh = mesh->next)
1065         {
1066                 if (mesh == firstmesh)
1067                 {
1068                         VectorCopy(mesh->vertex3f, nmins);
1069                         VectorCopy(mesh->vertex3f, nmaxs);
1070                 }
1071                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1072                 {
1073                         if (nmins[0] > v[0]) nmins[0] = v[0];if (nmaxs[0] < v[0]) nmaxs[0] = v[0];
1074                         if (nmins[1] > v[1]) nmins[1] = v[1];if (nmaxs[1] < v[1]) nmaxs[1] = v[1];
1075                         if (nmins[2] > v[2]) nmins[2] = v[2];if (nmaxs[2] < v[2]) nmaxs[2] = v[2];
1076                 }
1077         }
1078         // calculate center and radius
1079         ncenter[0] = (nmins[0] + nmaxs[0]) * 0.5f;
1080         ncenter[1] = (nmins[1] + nmaxs[1]) * 0.5f;
1081         ncenter[2] = (nmins[2] + nmaxs[2]) * 0.5f;
1082         nradius2 = 0;
1083         for (mesh = firstmesh;mesh;mesh = mesh->next)
1084         {
1085                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1086                 {
1087                         VectorSubtract(v, ncenter, temp);
1088                         dist2 = DotProduct(temp, temp);
1089                         if (nradius2 < dist2)
1090                                 nradius2 = dist2;
1091                 }
1092         }
1093         // return data
1094         if (mins)
1095                 VectorCopy(nmins, mins);
1096         if (maxs)
1097                 VectorCopy(nmaxs, maxs);
1098         if (center)
1099                 VectorCopy(ncenter, center);
1100         if (radius)
1101                 *radius = sqrt(nradius2);
1102 }
1103
1104 void Mod_ShadowMesh_Free(shadowmesh_t *mesh)
1105 {
1106         shadowmesh_t *nextmesh;
1107         for (;mesh;mesh = nextmesh)
1108         {
1109                 if (mesh->ebo3i)
1110                         R_Mesh_DestroyBufferObject(mesh->ebo3i);
1111                 if (mesh->ebo3s)
1112                         R_Mesh_DestroyBufferObject(mesh->ebo3s);
1113                 if (mesh->vbo)
1114                         R_Mesh_DestroyBufferObject(mesh->vbo);
1115                 nextmesh = mesh->next;
1116                 Mem_Free(mesh);
1117         }
1118 }
1119
1120 void Mod_GetTerrainVertex3fTexCoord2fFromBGRA(const unsigned char *imagepixels, int imagewidth, int imageheight, int ix, int iy, float *vertex3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
1121 {
1122         float v[3], tc[3];
1123         v[0] = ix;
1124         v[1] = iy;
1125         if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
1126                 v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
1127         else
1128                 v[2] = 0;
1129         Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
1130         Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
1131         texcoord2f[0] = tc[0];
1132         texcoord2f[1] = tc[1];
1133 }
1134
1135 void Mod_GetTerrainVertexFromBGRA(const unsigned char *imagepixels, int imagewidth, int imageheight, int ix, int iy, float *vertex3f, float *svector3f, float *tvector3f, float *normal3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
1136 {
1137         float vup[3], vdown[3], vleft[3], vright[3];
1138         float tcup[3], tcdown[3], tcleft[3], tcright[3];
1139         float sv[3], tv[3], nl[3];
1140         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
1141         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
1142         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
1143         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
1144         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
1145         Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
1146         Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
1147         VectorAdd(svector3f, sv, svector3f);
1148         VectorAdd(tvector3f, tv, tvector3f);
1149         VectorAdd(normal3f, nl, normal3f);
1150         Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
1151         VectorAdd(svector3f, sv, svector3f);
1152         VectorAdd(tvector3f, tv, tvector3f);
1153         VectorAdd(normal3f, nl, normal3f);
1154         Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
1155         VectorAdd(svector3f, sv, svector3f);
1156         VectorAdd(tvector3f, tv, tvector3f);
1157         VectorAdd(normal3f, nl, normal3f);
1158 }
1159
1160 void Mod_ConstructTerrainPatchFromBGRA(const unsigned char *imagepixels, int imagewidth, int imageheight, int x1, int y1, int width, int height, int *element3i, int *neighbor3i, float *vertex3f, float *svector3f, float *tvector3f, float *normal3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
1161 {
1162         int x, y, ix, iy, *e;
1163         e = element3i;
1164         for (y = 0;y < height;y++)
1165         {
1166                 for (x = 0;x < width;x++)
1167                 {
1168                         e[0] = (y + 1) * (width + 1) + (x + 0);
1169                         e[1] = (y + 0) * (width + 1) + (x + 0);
1170                         e[2] = (y + 1) * (width + 1) + (x + 1);
1171                         e[3] = (y + 0) * (width + 1) + (x + 0);
1172                         e[4] = (y + 0) * (width + 1) + (x + 1);
1173                         e[5] = (y + 1) * (width + 1) + (x + 1);
1174                         e += 6;
1175                 }
1176         }
1177         Mod_BuildTriangleNeighbors(neighbor3i, element3i, width*height*2);
1178         for (y = 0, iy = y1;y < height + 1;y++, iy++)
1179                 for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
1180                         Mod_GetTerrainVertexFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
1181 }
1182
1183 q3wavefunc_t Mod_LoadQ3Shaders_EnumerateWaveFunc(const char *s)
1184 {
1185         if (!strcasecmp(s, "sin"))             return Q3WAVEFUNC_SIN;
1186         if (!strcasecmp(s, "square"))          return Q3WAVEFUNC_SQUARE;
1187         if (!strcasecmp(s, "triangle"))        return Q3WAVEFUNC_TRIANGLE;
1188         if (!strcasecmp(s, "sawtooth"))        return Q3WAVEFUNC_SAWTOOTH;
1189         if (!strcasecmp(s, "inversesawtooth")) return Q3WAVEFUNC_INVERSESAWTOOTH;
1190         if (!strcasecmp(s, "noise"))           return Q3WAVEFUNC_NOISE;
1191         Con_DPrintf("Mod_LoadQ3Shaders: unknown wavefunc %s\n", s);
1192         return Q3WAVEFUNC_NONE;
1193 }
1194
1195 static void Q3Shaders_Clear()
1196 {
1197         /* Just clear out everything... */
1198         Mem_FreePool (&q3shaders_mem);
1199         /* ...and alloc the structs again. */
1200         q3shaders_mem = Mem_AllocPool("q3shaders", 0, NULL);
1201         q3shader_data = (q3shader_data_t*)Mem_Alloc (q3shaders_mem,
1202                 sizeof (q3shader_data_t));
1203         Mem_ExpandableArray_NewArray (&q3shader_data->hash_entries,
1204                 q3shaders_mem, sizeof (q3shader_hash_entry_t), 256);
1205         Mem_ExpandableArray_NewArray (&q3shader_data->char_ptrs,
1206                 q3shaders_mem, sizeof (char**), 256);
1207 }
1208
1209 static void Q3Shader_AddToHash (q3shaderinfo_t* shader)
1210 {
1211         unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)shader->name, strlen (shader->name));
1212         q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1213         q3shader_hash_entry_t* lastEntry = NULL;
1214         while (entry != NULL)
1215         {
1216                 if (strcasecmp (entry->shader.name, shader->name) == 0)
1217                 {
1218                         Con_Printf("Shader '%s' already defined\n", shader->name);
1219                         return;
1220                 }
1221                 lastEntry = entry;
1222                 entry = entry->chain;
1223         }
1224         if (entry == NULL)
1225         {
1226                 if (lastEntry->shader.name[0] != 0)
1227                 {
1228                         /* Add to chain */
1229                         q3shader_hash_entry_t* newEntry = (q3shader_hash_entry_t*)
1230                           Mem_ExpandableArray_AllocRecord (&q3shader_data->hash_entries);
1231
1232                         while (lastEntry->chain != NULL) lastEntry = lastEntry->chain;
1233                         lastEntry->chain = newEntry;
1234                         newEntry->chain = NULL;
1235                         lastEntry = newEntry;
1236                 }
1237                 /* else: head of chain, in hash entry array */
1238                 entry = lastEntry;
1239         }
1240         memcpy (&entry->shader, shader, sizeof (q3shaderinfo_t));
1241 }
1242
1243 extern cvar_t r_picmipworld;
1244 void Mod_LoadQ3Shaders(void)
1245 {
1246         int j;
1247         int fileindex;
1248         fssearch_t *search;
1249         char *f;
1250         const char *text;
1251         q3shaderinfo_t shader;
1252         q3shaderinfo_layer_t *layer;
1253         int numparameters;
1254         char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
1255
1256         Q3Shaders_Clear();
1257
1258         search = FS_Search("scripts/*.shader", true, false);
1259         if (!search)
1260                 return;
1261         for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
1262         {
1263                 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
1264                 if (!f)
1265                         continue;
1266                 while (COM_ParseToken_QuakeC(&text, false))
1267                 {
1268                         memset (&shader, 0, sizeof(shader));
1269                         shader.reflectmin = 0;
1270                         shader.reflectmax = 1;
1271                         shader.refractfactor = 1;
1272                         Vector4Set(shader.refractcolor4f, 1, 1, 1, 1);
1273                         shader.reflectfactor = 1;
1274                         Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
1275                         shader.r_water_wateralpha = 1;
1276
1277                         strlcpy(shader.name, com_token, sizeof(shader.name));
1278                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1279                         {
1280                                 Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
1281                                 break;
1282                         }
1283                         while (COM_ParseToken_QuakeC(&text, false))
1284                         {
1285                                 if (!strcasecmp(com_token, "}"))
1286                                         break;
1287                                 if (!strcasecmp(com_token, "{"))
1288                                 {
1289                                         static q3shaderinfo_layer_t dummy;
1290                                         if (shader.numlayers < Q3SHADER_MAXLAYERS)
1291                                         {
1292                                                 layer = shader.layers + shader.numlayers++;
1293                                         }
1294                                         else
1295                                         {
1296                                                 // parse and process it anyway, just don't store it (so a map $lightmap or such stuff still is found)
1297                                                 memset(&dummy, 0, sizeof(dummy));
1298                                                 layer = &dummy;
1299                                         }
1300                                         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1301                                         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1302                                         layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1303                                         layer->blendfunc[0] = GL_ONE;
1304                                         layer->blendfunc[1] = GL_ZERO;
1305                                         while (COM_ParseToken_QuakeC(&text, false))
1306                                         {
1307                                                 if (!strcasecmp(com_token, "}"))
1308                                                         break;
1309                                                 if (!strcasecmp(com_token, "\n"))
1310                                                         continue;
1311                                                 numparameters = 0;
1312                                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1313                                                 {
1314                                                         if (j < TEXTURE_MAXFRAMES + 4)
1315                                                         {
1316                                                                 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1317                                                                 numparameters = j + 1;
1318                                                         }
1319                                                         if (!COM_ParseToken_QuakeC(&text, true))
1320                                                                 break;
1321                                                 }
1322                                                 for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1323                                                         parameter[j][0] = 0;
1324                                                 if (developer.integer >= 100)
1325                                                 {
1326                                                         Con_Printf("%s %i: ", shader.name, shader.numlayers - 1);
1327                                                         for (j = 0;j < numparameters;j++)
1328                                                                 Con_Printf(" %s", parameter[j]);
1329                                                         Con_Print("\n");
1330                                                 }
1331                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
1332                                                 {
1333                                                         if (numparameters == 2)
1334                                                         {
1335                                                                 if (!strcasecmp(parameter[1], "add"))
1336                                                                 {
1337                                                                         layer->blendfunc[0] = GL_ONE;
1338                                                                         layer->blendfunc[1] = GL_ONE;
1339                                                                 }
1340                                                                 else if (!strcasecmp(parameter[1], "filter"))
1341                                                                 {
1342                                                                         layer->blendfunc[0] = GL_DST_COLOR;
1343                                                                         layer->blendfunc[1] = GL_ZERO;
1344                                                                 }
1345                                                                 else if (!strcasecmp(parameter[1], "blend"))
1346                                                                 {
1347                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1348                                                                         layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
1349                                                                 }
1350                                                         }
1351                                                         else if (numparameters == 3)
1352                                                         {
1353                                                                 int k;
1354                                                                 for (k = 0;k < 2;k++)
1355                                                                 {
1356                                                                         if (!strcasecmp(parameter[k+1], "GL_ONE"))
1357                                                                                 layer->blendfunc[k] = GL_ONE;
1358                                                                         else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
1359                                                                                 layer->blendfunc[k] = GL_ZERO;
1360                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
1361                                                                                 layer->blendfunc[k] = GL_SRC_COLOR;
1362                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
1363                                                                                 layer->blendfunc[k] = GL_SRC_ALPHA;
1364                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
1365                                                                                 layer->blendfunc[k] = GL_DST_COLOR;
1366                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
1367                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1368                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
1369                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
1370                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
1371                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
1372                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
1373                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
1374                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
1375                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1376                                                                         else
1377                                                                                 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
1378                                                                 }
1379                                                         }
1380                                                 }
1381                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
1382                                                         layer->alphatest = true;
1383                                                 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
1384                                                 {
1385                                                         if (!strcasecmp(parameter[0], "clampmap"))
1386                                                                 layer->clampmap = true;
1387                                                         layer->numframes = 1;
1388                                                         layer->framerate = 1;
1389                                                         layer->texturename = (char**)Mem_ExpandableArray_AllocRecord (
1390                                                                 &q3shader_data->char_ptrs);
1391                                                         layer->texturename[0] = Mem_strdup (q3shaders_mem, parameter[1]);
1392                                                         if (!strcasecmp(parameter[1], "$lightmap"))
1393                                                                 shader.lighting = true;
1394                                                 }
1395                                                 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
1396                                                 {
1397                                                         int i;
1398                                                         layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
1399                                                         layer->framerate = atof(parameter[1]);
1400                                                         layer->texturename = Mem_Alloc (q3shaders_mem, sizeof (char*) * layer->numframes);
1401                                                         for (i = 0;i < layer->numframes;i++)
1402                                                                 layer->texturename[i] = Mem_strdup (q3shaders_mem, parameter[i + 2]);
1403                                                 }
1404                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen"))
1405                                                 {
1406                                                         int i;
1407                                                         for (i = 0;i < numparameters - 2 && i < Q3RGBGEN_MAXPARMS;i++)
1408                                                                 layer->rgbgen.parms[i] = atof(parameter[i+2]);
1409                                                              if (!strcasecmp(parameter[1], "identity"))         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1410                                                         else if (!strcasecmp(parameter[1], "const"))            layer->rgbgen.rgbgen = Q3RGBGEN_CONST;
1411                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->rgbgen.rgbgen = Q3RGBGEN_ENTITY;
1412                                                         else if (!strcasecmp(parameter[1], "exactvertex"))      layer->rgbgen.rgbgen = Q3RGBGEN_EXACTVERTEX;
1413                                                         else if (!strcasecmp(parameter[1], "identitylighting")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITYLIGHTING;
1414                                                         else if (!strcasecmp(parameter[1], "lightingdiffuse"))  layer->rgbgen.rgbgen = Q3RGBGEN_LIGHTINGDIFFUSE;
1415                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSENTITY;
1416                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSVERTEX;
1417                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->rgbgen.rgbgen = Q3RGBGEN_VERTEX;
1418                                                         else if (!strcasecmp(parameter[1], "wave"))
1419                                                         {
1420                                                                 layer->rgbgen.rgbgen = Q3RGBGEN_WAVE;
1421                                                                 layer->rgbgen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1422                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1423                                                                         layer->rgbgen.waveparms[i] = atof(parameter[i+3]);
1424                                                         }
1425                                                         else Con_DPrintf("%s parsing warning: unknown rgbgen %s\n", search->filenames[fileindex], parameter[1]);
1426                                                 }
1427                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen"))
1428                                                 {
1429                                                         int i;
1430                                                         for (i = 0;i < numparameters - 2 && i < Q3ALPHAGEN_MAXPARMS;i++)
1431                                                                 layer->alphagen.parms[i] = atof(parameter[i+2]);
1432                                                              if (!strcasecmp(parameter[1], "identity"))         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1433                                                         else if (!strcasecmp(parameter[1], "const"))            layer->alphagen.alphagen = Q3ALPHAGEN_CONST;
1434                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->alphagen.alphagen = Q3ALPHAGEN_ENTITY;
1435                                                         else if (!strcasecmp(parameter[1], "lightingspecular")) layer->alphagen.alphagen = Q3ALPHAGEN_LIGHTINGSPECULAR;
1436                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSENTITY;
1437                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSVERTEX;
1438                                                         else if (!strcasecmp(parameter[1], "portal"))           layer->alphagen.alphagen = Q3ALPHAGEN_PORTAL;
1439                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->alphagen.alphagen = Q3ALPHAGEN_VERTEX;
1440                                                         else if (!strcasecmp(parameter[1], "wave"))
1441                                                         {
1442                                                                 layer->alphagen.alphagen = Q3RGBGEN_WAVE;
1443                                                                 layer->alphagen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1444                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1445                                                                         layer->alphagen.waveparms[i] = atof(parameter[i+3]);
1446                                                         }
1447                                                         else Con_DPrintf("%s parsing warning: unknown alphagen %s\n", search->filenames[fileindex], parameter[1]);
1448                                                 }
1449                                                 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "texgen") || !strcasecmp(parameter[0], "tcgen")))
1450                                                 {
1451                                                         int i;
1452                                                         // observed values: tcgen environment
1453                                                         // no other values have been observed in real shaders
1454                                                         for (i = 0;i < numparameters - 2 && i < Q3TCGEN_MAXPARMS;i++)
1455                                                                 layer->tcgen.parms[i] = atof(parameter[i+2]);
1456                                                              if (!strcasecmp(parameter[1], "base"))        layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1457                                                         else if (!strcasecmp(parameter[1], "texture"))     layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1458                                                         else if (!strcasecmp(parameter[1], "environment")) layer->tcgen.tcgen = Q3TCGEN_ENVIRONMENT;
1459                                                         else if (!strcasecmp(parameter[1], "lightmap"))    layer->tcgen.tcgen = Q3TCGEN_LIGHTMAP;
1460                                                         else if (!strcasecmp(parameter[1], "vector"))      layer->tcgen.tcgen = Q3TCGEN_VECTOR;
1461                                                         else Con_DPrintf("%s parsing warning: unknown tcgen mode %s\n", search->filenames[fileindex], parameter[1]);
1462                                                 }
1463                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "tcmod"))
1464                                                 {
1465                                                         int i, tcmodindex;
1466                                                         // observed values:
1467                                                         // tcmod rotate #
1468                                                         // tcmod scale # #
1469                                                         // tcmod scroll # #
1470                                                         // tcmod stretch sin # # # #
1471                                                         // tcmod stretch triangle # # # #
1472                                                         // tcmod transform # # # # # #
1473                                                         // tcmod turb # # # #
1474                                                         // tcmod turb sin # # # #  (this is bogus)
1475                                                         // no other values have been observed in real shaders
1476                                                         for (tcmodindex = 0;tcmodindex < Q3MAXTCMODS;tcmodindex++)
1477                                                                 if (!layer->tcmods[tcmodindex].tcmod)
1478                                                                         break;
1479                                                         if (tcmodindex < Q3MAXTCMODS)
1480                                                         {
1481                                                                 for (i = 0;i < numparameters - 2 && i < Q3TCMOD_MAXPARMS;i++)
1482                                                                         layer->tcmods[tcmodindex].parms[i] = atof(parameter[i+2]);
1483                                                                          if (!strcasecmp(parameter[1], "entitytranslate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ENTITYTRANSLATE;
1484                                                                 else if (!strcasecmp(parameter[1], "rotate"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ROTATE;
1485                                                                 else if (!strcasecmp(parameter[1], "scale"))           layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCALE;
1486                                                                 else if (!strcasecmp(parameter[1], "scroll"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCROLL;
1487                                                                 else if (!strcasecmp(parameter[1], "page"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_PAGE;
1488                                                                 else if (!strcasecmp(parameter[1], "stretch"))
1489                                                                 {
1490                                                                         layer->tcmods[tcmodindex].tcmod = Q3TCMOD_STRETCH;
1491                                                                         layer->tcmods[tcmodindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1492                                                                         for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1493                                                                                 layer->tcmods[tcmodindex].waveparms[i] = atof(parameter[i+3]);
1494                                                                 }
1495                                                                 else if (!strcasecmp(parameter[1], "transform"))       layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TRANSFORM;
1496                                                                 else if (!strcasecmp(parameter[1], "turb"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TURBULENT;
1497                                                                 else Con_DPrintf("%s parsing warning: unknown tcmod mode %s\n", search->filenames[fileindex], parameter[1]);
1498                                                         }
1499                                                         else
1500                                                                 Con_DPrintf("%s parsing warning: too many tcmods on one layer\n", search->filenames[fileindex]);
1501                                                 }
1502                                                 // break out a level if it was a closing brace (not using the character here to not confuse vim)
1503                                                 if (!strcasecmp(com_token, "}"))
1504                                                         break;
1505                                         }
1506                                         if (layer->rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE || layer->rgbgen.rgbgen == Q3RGBGEN_VERTEX)
1507                                                 shader.lighting = true;
1508                                         if (layer->alphagen.alphagen == Q3ALPHAGEN_VERTEX)
1509                                         {
1510                                                 if (layer == shader.layers + 0)
1511                                                 {
1512                                                         // vertex controlled transparency
1513                                                         shader.vertexalpha = true;
1514                                                 }
1515                                                 else
1516                                                 {
1517                                                         // multilayer terrain shader or similar
1518                                                         shader.textureblendalpha = true;
1519                                                 }
1520                                         }
1521                                         layer->texflags = TEXF_ALPHA | TEXF_PRECACHE;
1522                                         if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
1523                                                 layer->texflags |= TEXF_MIPMAP;
1524                                         if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
1525                                                 layer->texflags |= TEXF_PICMIP | TEXF_COMPRESS;
1526                                         if (layer->clampmap)
1527                                                 layer->texflags |= TEXF_CLAMP;
1528                                         continue;
1529                                 }
1530                                 numparameters = 0;
1531                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1532                                 {
1533                                         if (j < TEXTURE_MAXFRAMES + 4)
1534                                         {
1535                                                 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1536                                                 numparameters = j + 1;
1537                                         }
1538                                         if (!COM_ParseToken_QuakeC(&text, true))
1539                                                 break;
1540                                 }
1541                                 for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1542                                         parameter[j][0] = 0;
1543                                 if (fileindex == 0 && !strcasecmp(com_token, "}"))
1544                                         break;
1545                                 if (developer.integer >= 100)
1546                                 {
1547                                         Con_Printf("%s: ", shader.name);
1548                                         for (j = 0;j < numparameters;j++)
1549                                                 Con_Printf(" %s", parameter[j]);
1550                                         Con_Print("\n");
1551                                 }
1552                                 if (numparameters < 1)
1553                                         continue;
1554                                 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
1555                                 {
1556                                         if (!strcasecmp(parameter[1], "alphashadow"))
1557                                                 shader.surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
1558                                         else if (!strcasecmp(parameter[1], "areaportal"))
1559                                                 shader.surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
1560                                         else if (!strcasecmp(parameter[1], "botclip"))
1561                                                 shader.surfaceparms |= Q3SURFACEPARM_BOTCLIP;
1562                                         else if (!strcasecmp(parameter[1], "clusterportal"))
1563                                                 shader.surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
1564                                         else if (!strcasecmp(parameter[1], "detail"))
1565                                                 shader.surfaceparms |= Q3SURFACEPARM_DETAIL;
1566                                         else if (!strcasecmp(parameter[1], "donotenter"))
1567                                                 shader.surfaceparms |= Q3SURFACEPARM_DONOTENTER;
1568                                         else if (!strcasecmp(parameter[1], "dust"))
1569                                                 shader.surfaceparms |= Q3SURFACEPARM_DUST;
1570                                         else if (!strcasecmp(parameter[1], "hint"))
1571                                                 shader.surfaceparms |= Q3SURFACEPARM_HINT;
1572                                         else if (!strcasecmp(parameter[1], "fog"))
1573                                                 shader.surfaceparms |= Q3SURFACEPARM_FOG;
1574                                         else if (!strcasecmp(parameter[1], "lava"))
1575                                                 shader.surfaceparms |= Q3SURFACEPARM_LAVA;
1576                                         else if (!strcasecmp(parameter[1], "lightfilter"))
1577                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
1578                                         else if (!strcasecmp(parameter[1], "lightgrid"))
1579                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
1580                                         else if (!strcasecmp(parameter[1], "metalsteps"))
1581                                                 shader.surfaceparms |= Q3SURFACEPARM_METALSTEPS;
1582                                         else if (!strcasecmp(parameter[1], "nodamage"))
1583                                                 shader.surfaceparms |= Q3SURFACEPARM_NODAMAGE;
1584                                         else if (!strcasecmp(parameter[1], "nodlight"))
1585                                                 shader.surfaceparms |= Q3SURFACEPARM_NODLIGHT;
1586                                         else if (!strcasecmp(parameter[1], "nodraw"))
1587                                                 shader.surfaceparms |= Q3SURFACEPARM_NODRAW;
1588                                         else if (!strcasecmp(parameter[1], "nodrop"))
1589                                                 shader.surfaceparms |= Q3SURFACEPARM_NODROP;
1590                                         else if (!strcasecmp(parameter[1], "noimpact"))
1591                                                 shader.surfaceparms |= Q3SURFACEPARM_NOIMPACT;
1592                                         else if (!strcasecmp(parameter[1], "nolightmap"))
1593                                                 shader.surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
1594                                         else if (!strcasecmp(parameter[1], "nomarks"))
1595                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMARKS;
1596                                         else if (!strcasecmp(parameter[1], "nomipmaps"))
1597                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
1598                                         else if (!strcasecmp(parameter[1], "nonsolid"))
1599                                                 shader.surfaceparms |= Q3SURFACEPARM_NONSOLID;
1600                                         else if (!strcasecmp(parameter[1], "origin"))
1601                                                 shader.surfaceparms |= Q3SURFACEPARM_ORIGIN;
1602                                         else if (!strcasecmp(parameter[1], "playerclip"))
1603                                                 shader.surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
1604                                         else if (!strcasecmp(parameter[1], "sky"))
1605                                                 shader.surfaceparms |= Q3SURFACEPARM_SKY;
1606                                         else if (!strcasecmp(parameter[1], "slick"))
1607                                                 shader.surfaceparms |= Q3SURFACEPARM_SLICK;
1608                                         else if (!strcasecmp(parameter[1], "slime"))
1609                                                 shader.surfaceparms |= Q3SURFACEPARM_SLIME;
1610                                         else if (!strcasecmp(parameter[1], "structural"))
1611                                                 shader.surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
1612                                         else if (!strcasecmp(parameter[1], "trans"))
1613                                                 shader.surfaceparms |= Q3SURFACEPARM_TRANS;
1614                                         else if (!strcasecmp(parameter[1], "water"))
1615                                                 shader.surfaceparms |= Q3SURFACEPARM_WATER;
1616                                         else if (!strcasecmp(parameter[1], "pointlight"))
1617                                                 shader.surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
1618                                         else if (!strcasecmp(parameter[1], "antiportal"))
1619                                                 shader.surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
1620                                         else
1621                                                 Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
1622                                 }
1623                                 else if (!strcasecmp(parameter[0], "dpshadow"))
1624                                         shader.dpshadow = true;
1625                                 else if (!strcasecmp(parameter[0], "dpnoshadow"))
1626                                         shader.dpnoshadow = true;
1627                                 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
1628                                 {
1629                                         // some q3 skies don't have the sky parm set
1630                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
1631                                         strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
1632                                 }
1633                                 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
1634                                 {
1635                                         // some q3 skies don't have the sky parm set
1636                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
1637                                         if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
1638                                                 strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
1639                                 }
1640                                 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
1641                                 {
1642                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
1643                                                 shader.textureflags |= Q3TEXTUREFLAG_TWOSIDED;
1644                                 }
1645                                 else if (!strcasecmp(parameter[0], "nomipmaps"))
1646                                         shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
1647                                 else if (!strcasecmp(parameter[0], "nopicmip"))
1648                                         shader.textureflags |= Q3TEXTUREFLAG_NOPICMIP;
1649                                 else if (!strcasecmp(parameter[0], "polygonoffset"))
1650                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
1651                                 else if (!strcasecmp(parameter[0], "dp_refract") && numparameters >= 5)
1652                                 {
1653                                         shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
1654                                         shader.refractfactor = atof(parameter[1]);
1655                                         Vector4Set(shader.refractcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), 1);
1656                                 }
1657                                 else if (!strcasecmp(parameter[0], "dp_reflect") && numparameters >= 6)
1658                                 {
1659                                         shader.textureflags |= Q3TEXTUREFLAG_REFLECTION;
1660                                         shader.reflectfactor = atof(parameter[1]);
1661                                         Vector4Set(shader.reflectcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), atof(parameter[5]));
1662                                 }
1663                                 else if (!strcasecmp(parameter[0], "dp_water") && numparameters >= 12)
1664                                 {
1665                                         shader.textureflags |= Q3TEXTUREFLAG_WATERSHADER;
1666                                         shader.reflectmin = atof(parameter[1]);
1667                                         shader.reflectmax = atof(parameter[2]);
1668                                         shader.refractfactor = atof(parameter[3]);
1669                                         shader.reflectfactor = atof(parameter[4]);
1670                                         Vector4Set(shader.refractcolor4f, atof(parameter[5]), atof(parameter[6]), atof(parameter[7]), 1);
1671                                         Vector4Set(shader.reflectcolor4f, atof(parameter[8]), atof(parameter[9]), atof(parameter[10]), 1);
1672                                         shader.r_water_wateralpha = atof(parameter[11]);
1673                                 }
1674                                 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
1675                                 {
1676                                         int i, deformindex;
1677                                         for (deformindex = 0;deformindex < Q3MAXDEFORMS;deformindex++)
1678                                                 if (!shader.deforms[deformindex].deform)
1679                                                         break;
1680                                         if (deformindex < Q3MAXDEFORMS)
1681                                         {
1682                                                 for (i = 0;i < numparameters - 2 && i < Q3DEFORM_MAXPARMS;i++)
1683                                                         shader.deforms[deformindex].parms[i] = atof(parameter[i+2]);
1684                                                      if (!strcasecmp(parameter[1], "projectionshadow")) shader.deforms[deformindex].deform = Q3DEFORM_PROJECTIONSHADOW;
1685                                                 else if (!strcasecmp(parameter[1], "autosprite"      )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE;
1686                                                 else if (!strcasecmp(parameter[1], "autosprite2"     )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE2;
1687                                                 else if (!strcasecmp(parameter[1], "text0"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT0;
1688                                                 else if (!strcasecmp(parameter[1], "text1"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT1;
1689                                                 else if (!strcasecmp(parameter[1], "text2"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT2;
1690                                                 else if (!strcasecmp(parameter[1], "text3"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT3;
1691                                                 else if (!strcasecmp(parameter[1], "text4"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT4;
1692                                                 else if (!strcasecmp(parameter[1], "text5"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT5;
1693                                                 else if (!strcasecmp(parameter[1], "text6"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT6;
1694                                                 else if (!strcasecmp(parameter[1], "text7"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT7;
1695                                                 else if (!strcasecmp(parameter[1], "bulge"           )) shader.deforms[deformindex].deform = Q3DEFORM_BULGE;
1696                                                 else if (!strcasecmp(parameter[1], "normal"          )) shader.deforms[deformindex].deform = Q3DEFORM_NORMAL;
1697                                                 else if (!strcasecmp(parameter[1], "wave"            ))
1698                                                 {
1699                                                         shader.deforms[deformindex].deform = Q3DEFORM_WAVE;
1700                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[3]);
1701                                                         for (i = 0;i < numparameters - 4 && i < Q3WAVEPARMS;i++)
1702                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+4]);
1703                                                 }
1704                                                 else if (!strcasecmp(parameter[1], "move"            ))
1705                                                 {
1706                                                         shader.deforms[deformindex].deform = Q3DEFORM_MOVE;
1707                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[5]);
1708                                                         for (i = 0;i < numparameters - 6 && i < Q3WAVEPARMS;i++)
1709                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+6]);
1710                                                 }
1711                                         }
1712                                 }
1713                         }
1714                         // pick the primary layer to render with
1715                         if (shader.numlayers)
1716                         {
1717                                 shader.backgroundlayer = -1;
1718                                 shader.primarylayer = 0;
1719                                 // if lightmap comes first this is definitely an ordinary texture
1720                                 // if the first two layers have the correct blendfuncs and use vertex alpha, it is a blended terrain shader
1721                                 if ((shader.layers[shader.primarylayer].texturename != NULL)
1722                                   && !strcasecmp(shader.layers[shader.primarylayer].texturename[0], "$lightmap"))
1723                                 {
1724                                         shader.backgroundlayer = -1;
1725                                         shader.primarylayer = 1;
1726                                 }
1727                                 else if (shader.numlayers >= 2
1728                                 &&   shader.layers[1].alphagen.alphagen == Q3ALPHAGEN_VERTEX
1729                                 &&  (shader.layers[0].blendfunc[0] == GL_ONE       && shader.layers[0].blendfunc[1] == GL_ZERO                && !shader.layers[0].alphatest)
1730                                 && ((shader.layers[1].blendfunc[0] == GL_SRC_ALPHA && shader.layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
1731                                 ||  (shader.layers[1].blendfunc[0] == GL_ONE       && shader.layers[1].blendfunc[1] == GL_ZERO                &&  shader.layers[1].alphatest)))
1732                                 {
1733                                         // terrain blending or other effects
1734                                         shader.backgroundlayer = 0;
1735                                         shader.primarylayer = 1;
1736                                 }
1737                         }
1738                         // fix up multiple reflection types
1739                         if(shader.textureflags & Q3TEXTUREFLAG_WATERSHADER)
1740                                 shader.textureflags &= ~(Q3TEXTUREFLAG_REFRACTION | Q3TEXTUREFLAG_REFLECTION);
1741
1742                         Q3Shader_AddToHash (&shader);
1743                 }
1744                 Mem_Free(f);
1745         }
1746 }
1747
1748 q3shaderinfo_t *Mod_LookupQ3Shader(const char *name)
1749 {
1750         unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)name, strlen (name));
1751         q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1752         while (entry != NULL)
1753         {
1754                 if (strcasecmp (entry->shader.name, name) == 0)
1755                         return &entry->shader;
1756                 entry = entry->chain;
1757         }
1758         return NULL;
1759 }
1760
1761 qboolean Mod_LoadTextureFromQ3Shader(texture_t *texture, const char *name, qboolean warnmissing, qboolean fallback, int defaulttexflags)
1762 {
1763         int j;
1764         qboolean success = true;
1765         q3shaderinfo_t *shader;
1766         if (!name)
1767                 name = "";
1768         strlcpy(texture->name, name, sizeof(texture->name));
1769         shader = name[0] ? Mod_LookupQ3Shader(name) : NULL;
1770         if (shader)
1771         {
1772                 if (developer_loading.integer)
1773                         Con_Printf("%s: loaded shader for %s\n", loadmodel->name, name);
1774                 texture->surfaceparms = shader->surfaceparms;
1775                 texture->textureflags = shader->textureflags;
1776
1777                 // allow disabling of picmip or compression by defaulttexflags
1778                 if(!(defaulttexflags & TEXF_PICMIP))
1779                         texture->textureflags &= ~TEXF_PICMIP;
1780                 if(!(defaulttexflags & TEXF_COMPRESS))
1781                         texture->textureflags &= ~TEXF_COMPRESS;
1782
1783                 texture->basematerialflags = 0;
1784                 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
1785                 {
1786                         texture->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
1787                         if (shader->skyboxname[0])
1788                         {
1789                                 // quake3 seems to append a _ to the skybox name, so this must do so as well
1790                                 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
1791                         }
1792                 }
1793                 else if ((texture->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
1794                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
1795                 else
1796                         texture->basematerialflags = MATERIALFLAG_WALL;
1797                 if (shader->layers[0].alphatest)
1798                         texture->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
1799                 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
1800                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
1801                 if (shader->textureflags & Q3TEXTUREFLAG_POLYGONOFFSET)
1802                         texture->biaspolygonoffset -= 2;
1803                 if (shader->textureflags & Q3TEXTUREFLAG_REFRACTION)
1804                         texture->basematerialflags |= MATERIALFLAG_REFRACTION;
1805                 if (shader->textureflags & Q3TEXTUREFLAG_REFLECTION)
1806                         texture->basematerialflags |= MATERIALFLAG_REFLECTION;
1807                 if (shader->textureflags & Q3TEXTUREFLAG_WATERSHADER)
1808                         texture->basematerialflags |= MATERIALFLAG_WATERSHADER;
1809                 texture->customblendfunc[0] = GL_ONE;
1810                 texture->customblendfunc[1] = GL_ZERO;
1811                 if (shader->numlayers > 0)
1812                 {
1813                         texture->customblendfunc[0] = shader->layers[0].blendfunc[0];
1814                         texture->customblendfunc[1] = shader->layers[0].blendfunc[1];
1815 /*
1816 Q3 shader blendfuncs actually used in the game (* = supported by DP)
1817 * additive               GL_ONE GL_ONE
1818 additive weird         GL_ONE GL_SRC_ALPHA
1819 additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
1820 * alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
1821 alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
1822 brighten               GL_DST_COLOR GL_ONE
1823 brighten               GL_ONE GL_SRC_COLOR
1824 brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
1825 brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
1826 * modulate               GL_DST_COLOR GL_ZERO
1827 * modulate               GL_ZERO GL_SRC_COLOR
1828 modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
1829 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
1830 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
1831 * modulate x2            GL_DST_COLOR GL_SRC_COLOR
1832 * no blend               GL_ONE GL_ZERO
1833 nothing                GL_ZERO GL_ONE
1834 */
1835                         // if not opaque, figure out what blendfunc to use
1836                         if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
1837                         {
1838                                 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
1839                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1840                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
1841                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1842                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
1843                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1844                                 else
1845                                         texture->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1846                         }
1847                 }
1848                 if (!shader->lighting)
1849                         texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
1850                 if (shader->primarylayer >= 0)
1851                 {
1852                         q3shaderinfo_layer_t* primarylayer = shader->layers + shader->primarylayer;
1853                         // copy over many primarylayer parameters
1854                         texture->rgbgen = primarylayer->rgbgen;
1855                         texture->alphagen = primarylayer->alphagen;
1856                         texture->tcgen = primarylayer->tcgen;
1857                         memcpy(texture->tcmods, primarylayer->tcmods, sizeof(texture->tcmods));
1858                         // load the textures
1859                         texture->numskinframes = primarylayer->numframes;
1860                         texture->skinframerate = primarylayer->framerate;
1861                         for (j = 0;j < primarylayer->numframes;j++)
1862                         {
1863                                 if(cls.state == ca_dedicated)
1864                                 {
1865                                         texture->skinframes[j] = NULL;
1866                                 }
1867                                 else if (!(texture->skinframes[j] = R_SkinFrame_LoadExternal(primarylayer->texturename[j], primarylayer->texflags, false)))
1868                                 {
1869                                         Con_Printf("^1%s:^7 could not load texture ^3\"%s\"^7 (frame %i) for shader ^2\"%s\"\n", loadmodel->name, primarylayer->texturename[j], j, texture->name);
1870                                         texture->skinframes[j] = R_SkinFrame_LoadMissing();
1871                                 }
1872                         }
1873                 }
1874                 if (shader->backgroundlayer >= 0)
1875                 {
1876                         q3shaderinfo_layer_t* backgroundlayer = shader->layers + shader->backgroundlayer;
1877                         texture->backgroundnumskinframes = backgroundlayer->numframes;
1878                         texture->backgroundskinframerate = backgroundlayer->framerate;
1879                         for (j = 0;j < backgroundlayer->numframes;j++)
1880                         {
1881                                 if(cls.state == ca_dedicated)
1882                                 {
1883                                         texture->skinframes[j] = NULL;
1884                                 }
1885                                 else if (!(texture->backgroundskinframes[j] = R_SkinFrame_LoadExternal(backgroundlayer->texturename[j], backgroundlayer->texflags, false)))
1886                                 {
1887                                         Con_Printf("^1%s:^7 could not load texture ^3\"%s\"^7 (background frame %i) for shader ^2\"%s\"\n", loadmodel->name, backgroundlayer->texturename[j], j, texture->name);
1888                                         texture->backgroundskinframes[j] = R_SkinFrame_LoadMissing();
1889                                 }
1890                         }
1891                 }
1892                 if (shader->dpshadow)
1893                         texture->basematerialflags &= ~MATERIALFLAG_NOSHADOW;
1894                 if (shader->dpnoshadow)
1895                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW;
1896                 memcpy(texture->deforms, shader->deforms, sizeof(texture->deforms));
1897                 texture->reflectmin = shader->reflectmin;
1898                 texture->reflectmax = shader->reflectmax;
1899                 texture->refractfactor = shader->refractfactor;
1900                 Vector4Copy(shader->refractcolor4f, texture->refractcolor4f);
1901                 texture->reflectfactor = shader->reflectfactor;
1902                 Vector4Copy(shader->reflectcolor4f, texture->reflectcolor4f);
1903                 texture->r_water_wateralpha = shader->r_water_wateralpha;
1904         }
1905         else if (!strcmp(texture->name, "noshader") || !texture->name[0])
1906         {
1907                 if (developer.integer >= 100)
1908                         Con_Printf("^1%s:^7 using fallback noshader material for ^3\"%s\"\n", loadmodel->name, name);
1909                 texture->surfaceparms = 0;
1910         }
1911         else if (!strcmp(texture->name, "common/nodraw") || !strcmp(texture->name, "textures/common/nodraw"))
1912         {
1913                 if (developer.integer >= 100)
1914                         Con_Printf("^1%s:^7 using fallback nodraw material for ^3\"%s\"\n", loadmodel->name, name);
1915                 texture->surfaceparms = 0;
1916                 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
1917         }
1918         else
1919         {
1920                 if (developer.integer >= 100)
1921                         Con_Printf("^1%s:^7 No shader found for texture ^3\"%s\"\n", loadmodel->name, texture->name);
1922                 texture->surfaceparms = 0;
1923                 if (texture->surfaceflags & Q3SURFACEFLAG_NODRAW)
1924                         texture->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
1925                 else if (texture->surfaceflags & Q3SURFACEFLAG_SKY)
1926                         texture->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
1927                 else
1928                         texture->basematerialflags |= MATERIALFLAG_WALL;
1929                 texture->numskinframes = 1;
1930                 if(cls.state == ca_dedicated)
1931                 {
1932                         texture->skinframes[0] = NULL;
1933                 }
1934                 else
1935                 {
1936                         if (fallback)
1937                         {
1938                                 qboolean has_alpha;
1939                                 if ((texture->skinframes[0] = R_SkinFrame_LoadExternal_CheckAlpha(texture->name, defaulttexflags, false, &has_alpha)))
1940                                 {
1941                                         if(has_alpha && (defaulttexflags & TEXF_ALPHA))
1942                                                 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1943                                 }
1944                                 else
1945                                         success = false;
1946                         }
1947                         else
1948                                 success = false;
1949                         if (!success && warnmissing)
1950                                 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"\n", loadmodel->name, texture->name);
1951                 }
1952         }
1953         // init the animation variables
1954         texture->currentframe = texture;
1955         if (texture->numskinframes < 1)
1956                 texture->numskinframes = 1;
1957         if (!texture->skinframes[0])
1958                 texture->skinframes[0] = R_SkinFrame_LoadMissing();
1959         texture->currentskinframe = texture->skinframes[0];
1960         texture->backgroundcurrentskinframe = texture->backgroundskinframes[0];
1961         return success;
1962 }
1963
1964 skinfile_t *Mod_LoadSkinFiles(void)
1965 {
1966         int i, words, line, wordsoverflow;
1967         char *text;
1968         const char *data;
1969         skinfile_t *skinfile = NULL, *first = NULL;
1970         skinfileitem_t *skinfileitem;
1971         char word[10][MAX_QPATH];
1972
1973 /*
1974 sample file:
1975 U_bodyBox,models/players/Legoman/BikerA2.tga
1976 U_RArm,models/players/Legoman/BikerA1.tga
1977 U_LArm,models/players/Legoman/BikerA1.tga
1978 U_armor,common/nodraw
1979 U_sword,common/nodraw
1980 U_shield,common/nodraw
1981 U_homb,common/nodraw
1982 U_backpack,common/nodraw
1983 U_colcha,common/nodraw
1984 tag_head,
1985 tag_weapon,
1986 tag_torso,
1987 */
1988         memset(word, 0, sizeof(word));
1989         for (i = 0;i < MAX_SKINS && (data = text = (char *)FS_LoadFile(va("%s_%i.skin", loadmodel->name, i), tempmempool, true, NULL));i++)
1990         {
1991                 // If it's the first file we parse
1992                 if (skinfile == NULL)
1993                 {
1994                         skinfile = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
1995                         first = skinfile;
1996                 }
1997                 else
1998                 {
1999                         skinfile->next = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2000                         skinfile = skinfile->next;
2001                 }
2002                 skinfile->next = NULL;
2003
2004                 for(line = 0;;line++)
2005                 {
2006                         // parse line
2007                         if (!COM_ParseToken_QuakeC(&data, true))
2008                                 break;
2009                         if (!strcmp(com_token, "\n"))
2010                                 continue;
2011                         words = 0;
2012                         wordsoverflow = false;
2013                         do
2014                         {
2015                                 if (words < 10)
2016                                         strlcpy(word[words++], com_token, sizeof (word[0]));
2017                                 else
2018                                         wordsoverflow = true;
2019                         }
2020                         while (COM_ParseToken_QuakeC(&data, true) && strcmp(com_token, "\n"));
2021                         if (wordsoverflow)
2022                         {
2023                                 Con_Printf("Mod_LoadSkinFiles: parsing error in file \"%s_%i.skin\" on line #%i: line with too many statements, skipping\n", loadmodel->name, i, line);
2024                                 continue;
2025                         }
2026                         // words is always >= 1
2027                         if (!strcmp(word[0], "replace"))
2028                         {
2029                                 if (words == 3)
2030                                 {
2031                                         if (developer_loading.integer)
2032                                                 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
2033                                         skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2034                                         skinfileitem->next = skinfile->items;
2035                                         skinfile->items = skinfileitem;
2036                                         strlcpy (skinfileitem->name, word[1], sizeof (skinfileitem->name));
2037                                         strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2038                                 }
2039                                 else
2040                                         Con_Printf("Mod_LoadSkinFiles: parsing error in file \"%s_%i.skin\" on line #%i: wrong number of parameters to command \"%s\", see documentation in DP_GFX_SKINFILES extension in dpextensions.qc\n", loadmodel->name, i, line, word[0]);
2041                         }
2042                         else if (words >= 2 && !strncmp(word[0], "tag_", 4))
2043                         {
2044                                 // tag name, like "tag_weapon,"
2045                                 // not used for anything (not even in Quake3)
2046                         }
2047                         else if (words >= 2 && !strcmp(word[1], ","))
2048                         {
2049                                 // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
2050                                 if (developer_loading.integer)
2051                                         Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
2052                                 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2053                                 skinfileitem->next = skinfile->items;
2054                                 skinfile->items = skinfileitem;
2055                                 strlcpy (skinfileitem->name, word[0], sizeof (skinfileitem->name));
2056                                 strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2057                         }
2058                         else
2059                                 Con_Printf("Mod_LoadSkinFiles: parsing error in file \"%s_%i.skin\" on line #%i: does not look like tag or mesh specification, or replace command, see documentation in DP_GFX_SKINFILES extension in dpextensions.qc\n", loadmodel->name, i, line);
2060                 }
2061                 Mem_Free(text);
2062         }
2063         if (i)
2064                 loadmodel->numskins = i;
2065         return first;
2066 }
2067
2068 void Mod_FreeSkinFiles(skinfile_t *skinfile)
2069 {
2070         skinfile_t *next;
2071         skinfileitem_t *skinfileitem, *nextitem;
2072         for (;skinfile;skinfile = next)
2073         {
2074                 next = skinfile->next;
2075                 for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
2076                 {
2077                         nextitem = skinfileitem->next;
2078                         Mem_Free(skinfileitem);
2079                 }
2080                 Mem_Free(skinfile);
2081         }
2082 }
2083
2084 int Mod_CountSkinFiles(skinfile_t *skinfile)
2085 {
2086         int i;
2087         for (i = 0;skinfile;skinfile = skinfile->next, i++);
2088         return i;
2089 }
2090
2091 void Mod_SnapVertices(int numcomponents, int numvertices, float *vertices, float snap)
2092 {
2093         int i;
2094         double isnap = 1.0 / snap;
2095         for (i = 0;i < numvertices*numcomponents;i++)
2096                 vertices[i] = floor(vertices[i]*isnap)*snap;
2097 }
2098
2099 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
2100 {
2101         int i, outtriangles;
2102         float d, edgedir[3], temp[3];
2103         // a degenerate triangle is one with no width (thickness, surface area)
2104         // these are characterized by having all 3 points colinear (along a line)
2105         // or having two points identical
2106         for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
2107         {
2108                 // calculate first edge
2109                 VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir);
2110                 if (VectorLength2(edgedir) < 0.0001f)
2111                         continue; // degenerate first edge (no length)
2112                 VectorNormalize(edgedir);
2113                 // check if third point is on the edge (colinear)
2114                 d = -DotProduct(vertex3f + inelement3i[2] * 3, edgedir);
2115                 VectorMA(vertex3f + inelement3i[2] * 3, d, edgedir, temp);
2116                 if (VectorLength2(temp) < 0.0001f)
2117                         continue; // third point colinear with first edge
2118                 // valid triangle (no colinear points, no duplicate points)
2119                 VectorCopy(inelement3i, outelement3i);
2120                 outelement3i += 3;
2121                 outtriangles++;
2122         }
2123         return outtriangles;
2124 }
2125
2126 void Mod_VertexRangeFromElements(int numelements, const int *elements, int *firstvertexpointer, int *lastvertexpointer)
2127 {
2128         int i, e;
2129         int firstvertex, lastvertex;
2130         if (numelements > 0 && elements)
2131         {
2132                 firstvertex = lastvertex = elements[0];
2133                 for (i = 1;i < numelements;i++)
2134                 {
2135                         e = elements[i];
2136                         firstvertex = min(firstvertex, e);
2137                         lastvertex = max(lastvertex, e);
2138                 }
2139         }
2140         else
2141                 firstvertex = lastvertex = 0;
2142         if (firstvertexpointer)
2143                 *firstvertexpointer = firstvertex;
2144         if (lastvertexpointer)
2145                 *lastvertexpointer = lastvertex;
2146 }
2147
2148 static void Mod_BuildVBOs(void)
2149 {
2150         if (!gl_support_arb_vertex_buffer_object)
2151                 return;
2152
2153         // element buffer is easy because it's just one array
2154         if (loadmodel->surfmesh.num_triangles)
2155         {
2156                 if (loadmodel->surfmesh.data_element3s)
2157                 {
2158                         int i;
2159                         for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2160                                 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2161                         loadmodel->surfmesh.ebo3s = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, loadmodel->surfmesh.data_element3s, loadmodel->surfmesh.num_triangles * sizeof(unsigned short[3]), loadmodel->name);
2162                 }
2163                 else
2164                         loadmodel->surfmesh.ebo3i = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles * sizeof(unsigned int[3]), loadmodel->name);
2165         }
2166
2167         // vertex buffer is several arrays and we put them in the same buffer
2168         //
2169         // is this wise?  the texcoordtexture2f array is used with dynamic
2170         // vertex/svector/tvector/normal when rendering animated models, on the
2171         // other hand animated models don't use a lot of vertices anyway...
2172         if (loadmodel->surfmesh.num_vertices)
2173         {
2174                 size_t size;
2175                 unsigned char *mem;
2176                 size = 0;
2177                 loadmodel->surfmesh.vbooffset_vertex3f           = size;if (loadmodel->surfmesh.data_vertex3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2178                 loadmodel->surfmesh.vbooffset_svector3f          = size;if (loadmodel->surfmesh.data_svector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2179                 loadmodel->surfmesh.vbooffset_tvector3f          = size;if (loadmodel->surfmesh.data_tvector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2180                 loadmodel->surfmesh.vbooffset_normal3f           = size;if (loadmodel->surfmesh.data_normal3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2181                 loadmodel->surfmesh.vbooffset_texcoordtexture2f  = size;if (loadmodel->surfmesh.data_texcoordtexture2f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2182                 loadmodel->surfmesh.vbooffset_texcoordlightmap2f = size;if (loadmodel->surfmesh.data_texcoordlightmap2f) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2183                 loadmodel->surfmesh.vbooffset_lightmapcolor4f    = size;if (loadmodel->surfmesh.data_lightmapcolor4f   ) size += loadmodel->surfmesh.num_vertices * sizeof(float[4]);
2184                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
2185                 if (loadmodel->surfmesh.data_vertex3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_vertex3f          , loadmodel->surfmesh.data_vertex3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2186                 if (loadmodel->surfmesh.data_svector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_svector3f         , loadmodel->surfmesh.data_svector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2187                 if (loadmodel->surfmesh.data_tvector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_tvector3f         , loadmodel->surfmesh.data_tvector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2188                 if (loadmodel->surfmesh.data_normal3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_normal3f          , loadmodel->surfmesh.data_normal3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2189                 if (loadmodel->surfmesh.data_texcoordtexture2f ) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordtexture2f , loadmodel->surfmesh.data_texcoordtexture2f , loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2190                 if (loadmodel->surfmesh.data_texcoordlightmap2f) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordlightmap2f, loadmodel->surfmesh.data_texcoordlightmap2f, loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2191                 if (loadmodel->surfmesh.data_lightmapcolor4f   ) memcpy(mem + loadmodel->surfmesh.vbooffset_lightmapcolor4f   , loadmodel->surfmesh.data_lightmapcolor4f   , loadmodel->surfmesh.num_vertices * sizeof(float[4]));
2192                 loadmodel->surfmesh.vbo = R_Mesh_CreateStaticBufferObject(GL_ARRAY_BUFFER_ARB, mem, size, loadmodel->name);
2193                 Mem_Free(mem);
2194         }
2195 }