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, count;
  54         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  55         dp_model_t *mod;
  56
  57         SCR_PushLoadingScreen(false, "Loading models", 1.0);
  58         count = 0;
  59         for (i = 0;i < nummodels;i++)
  60                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  61                         if (mod->used)
  62                                 ++count;
  63         for (i = 0;i < nummodels;i++)
  64                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  65                         if (mod->used)
  66                         {
  67                                 SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
  68                                 Mod_LoadModel(mod, true, false);
  69                                 SCR_PopLoadingScreen(false);
  70                         }
  71         SCR_PopLoadingScreen(false);
  72 }
  73
  74 static void mod_shutdown(void)
  75 {
  76         int i;
  77         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  78         dp_model_t *mod;
  79
  80         for (i = 0;i < nummodels;i++)
  81                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && (mod->loaded || mod->mempool))
  82                         Mod_UnloadModel(mod);
  83
  84         Mod_FreeQ3Shaders();
  85 }
  86
  87 static void mod_newmap(void)
  88 {
  89         msurface_t *surface;
  90         int i, j, k, surfacenum, ssize, tsize;
  91         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  92         dp_model_t *mod;
  93
  94         R_SkinFrame_PrepareForPurge();
  95         for (i = 0;i < nummodels;i++)
  96         {
  97                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool && mod->data_textures)
  98                 {
  99                         for (j = 0;j < mod->num_textures;j++)
 100                         {
 101                                 for (k = 0;k < mod->data_textures[j].numskinframes;k++)
 102                                         R_SkinFrame_MarkUsed(mod->data_textures[j].skinframes[k]);
 103                                 for (k = 0;k < mod->data_textures[j].backgroundnumskinframes;k++)
 104                                         R_SkinFrame_MarkUsed(mod->data_textures[j].backgroundskinframes[k]);
 105                         }
 106                 }
 107         }
 108         R_SkinFrame_Purge();
 109
 110         if (!cl_stainmaps_clearonload.integer)
 111                 return;
 112
 113         for (i = 0;i < nummodels;i++)
 114         {
 115                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool && mod->data_surfaces)
 116                 {
 117                         for (surfacenum = 0, surface = mod->data_surfaces;surfacenum < mod->num_surfaces;surfacenum++, surface++)
 118                         {
 119                                 if (surface->lightmapinfo && surface->lightmapinfo->stainsamples)
 120                                 {
 121                                         ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
 122                                         tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
 123                                         memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
 124                                         mod->brushq1.lightmapupdateflags[surfacenum] = true;
 125                                 }
 126                         }
 127                 }
 128         }
 129 }
 130
 131 /*
 132 ===============
 133 Mod_Init
 134 ===============
 135 */
 136 static void Mod_Print(void);
 137 static void Mod_Precache (void);
 138 static void Mod_Decompile_f(void);
 139 static void Mod_BuildVBOs(void);
 140 void Mod_Init (void)
 141 {
 142         mod_mempool = Mem_AllocPool("modelinfo", 0, NULL);
 143         Mem_ExpandableArray_NewArray(&models, mod_mempool, sizeof(dp_model_t), 16);
 144
 145         Mod_BrushInit();
 146         Mod_AliasInit();
 147         Mod_SpriteInit();
 148
 149         Cvar_RegisterVariable(&r_mipskins);
 150         Cmd_AddCommand ("modellist", Mod_Print, "prints a list of loaded models");
 151         Cmd_AddCommand ("modelprecache", Mod_Precache, "load a model");
 152         Cmd_AddCommand ("modeldecompile", Mod_Decompile_f, "exports a model in several formats for editing purposes");
 153 }
 154
 155 void Mod_RenderInit(void)
 156 {
 157         R_RegisterModule("Models", mod_start, mod_shutdown, mod_newmap);
 158 }
 159
 160 void Mod_UnloadModel (dp_model_t *mod)
 161 {
 162         char name[MAX_QPATH];
 163         qboolean used;
 164         dp_model_t *parentmodel;
 165
 166         if (developer_loading.integer)
 167                 Con_Printf("unloading model %s\n", mod->name);
 168
 169         strlcpy(name, mod->name, sizeof(name));
 170         parentmodel = mod->brush.parentmodel;
 171         used = mod->used;
 172         if (mod->surfmesh.ebo3i)
 173                 R_Mesh_DestroyBufferObject(mod->surfmesh.ebo3i);
 174         if (mod->surfmesh.ebo3s)
 175                 R_Mesh_DestroyBufferObject(mod->surfmesh.ebo3s);
 176         if (mod->surfmesh.vbo)
 177                 R_Mesh_DestroyBufferObject(mod->surfmesh.vbo);
 178         // free textures/memory attached to the model
 179         R_FreeTexturePool(&mod->texturepool);
 180         Mem_FreePool(&mod->mempool);
 181         // clear the struct to make it available
 182         memset(mod, 0, sizeof(dp_model_t));
 183         // restore the fields we want to preserve
 184         strlcpy(mod->name, name, sizeof(mod->name));
 185         mod->brush.parentmodel = parentmodel;
 186         mod->used = used;
 187         mod->loaded = false;
 188 }
 189
 190 void R_Model_Null_Draw(entity_render_t *ent)
 191 {
 192         return;
 193 }
 194
 195
 196 typedef void (*mod_framegroupify_parsegroups_t) (unsigned int i, int start, int len, float fps, qboolean loop, void *pass);
 197
 198 int Mod_FrameGroupify_ParseGroups(const char *buf, mod_framegroupify_parsegroups_t cb, void *pass)
 199 {
 200         const char *bufptr;
 201         int start, len;
 202         float fps;
 203         unsigned int i;
 204         qboolean loop;
 205
 206         bufptr = buf;
 207         i = 0;
 208         for(;;)
 209         {
 210                 // an anim scene!
 211                 if (!COM_ParseToken_Simple(&bufptr, true, false))
 212                         break;
 213                 if (!strcmp(com_token, "\n"))
 214                         continue; // empty line
 215                 start = atoi(com_token);
 216                 if (!COM_ParseToken_Simple(&bufptr, true, false))
 217                         break;
 218                 if (!strcmp(com_token, "\n"))
 219                 {
 220                         Con_Printf("framegroups file: missing number of frames\n");
 221                         continue;
 222                 }
 223                 len = atoi(com_token);
 224                 if (!COM_ParseToken_Simple(&bufptr, true, false))
 225                         break;
 226                 // we default to looping as it's usually wanted, so to NOT loop you append a 0
 227                 if (strcmp(com_token, "\n"))
 228                 {
 229                         fps = atof(com_token);
 230                         if (!COM_ParseToken_Simple(&bufptr, true, false))
 231                                 break;
 232                         if (strcmp(com_token, "\n"))
 233                                 loop = atoi(com_token);
 234                         else
 235                                 loop = true;
 236                 }
 237                 else
 238                 {
 239                         fps = 20;
 240                         loop = true;
 241                 }
 242
 243                 if(cb)
 244                         cb(i, start, len, fps, loop, pass);
 245                 ++i;
 246         }
 247
 248         return i;
 249 }
 250
 251 void Mod_FrameGroupify_ParseGroups_Count (unsigned int i, int start, int len, float fps, qboolean loop, void *pass)
 252 {
 253         unsigned int *cnt = (unsigned int *) pass;
 254         ++*cnt;
 255 }
 256
 257 void Mod_FrameGroupify_ParseGroups_Store (unsigned int i, int start, int len, float fps, qboolean loop, void *pass)
 258 {
 259         dp_model_t *mod = (dp_model_t *) pass;
 260         animscene_t *anim = &mod->animscenes[i];
 261         dpsnprintf(anim->name, sizeof(anim[i].name), "groupified_%d", i);
 262         anim->firstframe = bound(0, start, mod->num_poses - 1);
 263         anim->framecount = bound(1, len, mod->num_poses - anim->firstframe);
 264         anim->framerate = max(1, fps);
 265         anim->loop = !!loop;
 266         //Con_Printf("frame group %d is %d %d %f %d\n", i, start, len, fps, loop);
 267 }
 268
 269 void Mod_FrameGroupify(dp_model_t *mod, const char *buf)
 270 {
 271         unsigned int cnt;
 272
 273         // 0. count
 274         cnt = Mod_FrameGroupify_ParseGroups(buf, NULL, NULL);
 275         if(!cnt)
 276         {
 277                 Con_Printf("no scene found in framegroups file, aborting\n");
 278                 return;
 279         }
 280         mod->numframes = cnt;
 281
 282         // 1. reallocate
 283         // (we do not free the previous animscenes, but model unloading will free the pool owning them, so it's okay)
 284         mod->animscenes = (animscene_t *) Mem_Alloc(mod->mempool, sizeof(animscene_t) * mod->numframes);
 285
 286         // 2. parse
 287         Mod_FrameGroupify_ParseGroups(buf, Mod_FrameGroupify_ParseGroups_Store, mod);
 288 }
 289
 290 /*
 291 ==================
 292 Mod_LoadModel
 293
 294 Loads a model
 295 ==================
 296 */
 297 dp_model_t *Mod_LoadModel(dp_model_t *mod, qboolean crash, qboolean checkdisk)
 298 {
 299         int num;
 300         unsigned int crc;
 301         void *buf;
 302         fs_offset_t filesize;
 303
 304         mod->used = true;
 305
 306         if (mod->name[0] == '*') // submodel
 307                 return mod;
 308
 309         if (!strcmp(mod->name, "null"))
 310         {
 311                 if(mod->loaded)
 312                         return mod;
 313
 314                 if (mod->loaded || mod->mempool)
 315                         Mod_UnloadModel(mod);
 316
 317                 if (developer_loading.integer)
 318                         Con_Printf("loading model %s\n", mod->name);
 319
 320                 mod->used = true;
 321                 mod->crc = -1;
 322                 mod->loaded = false;
 323
 324                 VectorClear(mod->normalmins);
 325                 VectorClear(mod->normalmaxs);
 326                 VectorClear(mod->yawmins);
 327                 VectorClear(mod->yawmaxs);
 328                 VectorClear(mod->rotatedmins);
 329                 VectorClear(mod->rotatedmaxs);
 330
 331                 mod->modeldatatypestring = "null";
 332                 mod->type = mod_null;
 333                 mod->Draw = R_Model_Null_Draw;
 334                 mod->numframes = 2;
 335                 mod->numskins = 1;
 336
 337                 // no fatal errors occurred, so this model is ready to use.
 338                 mod->loaded = true;
 339
 340                 return mod;
 341         }
 342
 343         crc = 0;
 344         buf = NULL;
 345
 346         // even if the model is loaded it still may need reloading...
 347
 348         // if it is not loaded or checkdisk is true we need to calculate the crc
 349         if (!mod->loaded || checkdisk)
 350         {
 351                 if (checkdisk && mod->loaded)
 352                         Con_DPrintf("checking model %s\n", mod->name);
 353                 buf = FS_LoadFile (mod->name, tempmempool, false, &filesize);
 354                 if (buf)
 355                 {
 356                         crc = CRC_Block((unsigned char *)buf, filesize);
 357                         // we need to reload the model if the crc does not match
 358                         if (mod->crc != crc)
 359                                 mod->loaded = false;
 360                 }
 361         }
 362
 363         // if the model is already loaded and checks passed, just return
 364         if (mod->loaded)
 365         {
 366                 if (buf)
 367                         Mem_Free(buf);
 368                 return mod;
 369         }
 370
 371         if (developer_loading.integer)
 372                 Con_Printf("loading model %s\n", mod->name);
 373
 374         SCR_PushLoadingScreen(true, mod->name, 1);
 375
 376         // LordHavoc: unload the existing model in this slot (if there is one)
 377         if (mod->loaded || mod->mempool)
 378                 Mod_UnloadModel(mod);
 379
 380         // load the model
 381         mod->used = true;
 382         mod->crc = crc;
 383         // errors can prevent the corresponding mod->loaded = true;
 384         mod->loaded = false;
 385
 386         // default model radius and bounding box (mainly for missing models)
 387         mod->radius = 16;
 388         VectorSet(mod->normalmins, -mod->radius, -mod->radius, -mod->radius);
 389         VectorSet(mod->normalmaxs, mod->radius, mod->radius, mod->radius);
 390         VectorSet(mod->yawmins, -mod->radius, -mod->radius, -mod->radius);
 391         VectorSet(mod->yawmaxs, mod->radius, mod->radius, mod->radius);
 392         VectorSet(mod->rotatedmins, -mod->radius, -mod->radius, -mod->radius);
 393         VectorSet(mod->rotatedmaxs, mod->radius, mod->radius, mod->radius);
 394
 395         if (!q3shaders_mem)
 396         {
 397                 // load q3 shaders for the first time, or after a level change
 398                 Mod_LoadQ3Shaders();
 399         }
 400
 401         if (buf)
 402         {
 403                 char *bufend = (char *)buf + filesize;
 404
 405                 // all models use memory, so allocate a memory pool
 406                 mod->mempool = Mem_AllocPool(mod->name, 0, NULL);
 407
 408                 num = LittleLong(*((int *)buf));
 409                 // call the apropriate loader
 410                 loadmodel = mod;
 411                      if (!strcasecmp(FS_FileExtension(mod->name), "obj")) Mod_OBJ_Load(mod, buf, bufend);
 412                 else if (!memcmp(buf, "IDPO", 4)) Mod_IDP0_Load(mod, buf, bufend);
 413                 else if (!memcmp(buf, "IDP2", 4)) Mod_IDP2_Load(mod, buf, bufend);
 414                 else if (!memcmp(buf, "IDP3", 4)) Mod_IDP3_Load(mod, buf, bufend);
 415                 else if (!memcmp(buf, "IDSP", 4)) Mod_IDSP_Load(mod, buf, bufend);
 416                 else if (!memcmp(buf, "IDS2", 4)) Mod_IDS2_Load(mod, buf, bufend);
 417                 else if (!memcmp(buf, "IBSP", 4)) Mod_IBSP_Load(mod, buf, bufend);
 418                 else if (!memcmp(buf, "ZYMOTICMODEL", 12)) Mod_ZYMOTICMODEL_Load(mod, buf, bufend);
 419                 else if (!memcmp(buf, "DARKPLACESMODEL", 16)) Mod_DARKPLACESMODEL_Load(mod, buf, bufend);
 420                 else if (!memcmp(buf, "ACTRHEAD", 8)) Mod_PSKMODEL_Load(mod, buf, bufend);
 421                 else if (strlen(mod->name) >= 4 && !strcmp(mod->name + strlen(mod->name) - 4, ".map")) Mod_MAP_Load(mod, buf, bufend);
 422                 else if (num == BSPVERSION || num == 30) Mod_Q1BSP_Load(mod, buf, bufend);
 423                 else Con_Printf("Mod_LoadModel: model \"%s\" is of unknown/unsupported type\n", mod->name);
 424                 Mem_Free(buf);
 425
 426                 buf = FS_LoadFile (va("%s.framegroups", mod->name), tempmempool, false, &filesize);
 427                 if(buf)
 428                         Mod_FrameGroupify(mod, buf);
 429                 Mem_Free(buf);
 430
 431                 Mod_BuildVBOs();
 432         }
 433         else if (crash)
 434         {
 435                 // LordHavoc: Sys_Error was *ANNOYING*
 436                 Con_Printf ("Mod_LoadModel: %s not found\n", mod->name);
 437         }
 438
 439         // no fatal errors occurred, so this model is ready to use.
 440         mod->loaded = true;
 441
 442         SCR_PopLoadingScreen(false);
 443
 444         return mod;
 445 }
 446
 447 void Mod_ClearUsed(void)
 448 {
 449         int i;
 450         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 451         dp_model_t *mod;
 452         for (i = 0;i < nummodels;i++)
 453                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0])
 454                         mod->used = false;
 455 }
 456
 457 void Mod_PurgeUnused(void)
 458 {
 459         int i;
 460         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 461         dp_model_t *mod;
 462         for (i = 0;i < nummodels;i++)
 463         {
 464                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !mod->used)
 465                 {
 466                         Mod_UnloadModel(mod);
 467                         Mem_ExpandableArray_FreeRecord(&models, mod);
 468                 }
 469         }
 470 }
 471
 472 /*
 473 ==================
 474 Mod_FindName
 475
 476 ==================
 477 */
 478 dp_model_t *Mod_FindName(const char *name, const char *parentname)
 479 {
 480         int i;
 481         int nummodels;
 482         dp_model_t *mod;
 483
 484         if (!parentname)
 485                 parentname = "";
 486
 487         // if we're not dedicatd, the renderer calls will crash without video
 488         Host_StartVideo();
 489
 490         nummodels = Mem_ExpandableArray_IndexRange(&models);
 491
 492         if (!name[0])
 493                 Host_Error ("Mod_ForName: NULL name");
 494
 495         // search the currently loaded models
 496         for (i = 0;i < nummodels;i++)
 497         {
 498                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !strcmp(mod->name, name) && ((!mod->brush.parentmodel && !parentname[0]) || (mod->brush.parentmodel && parentname[0] && !strcmp(mod->brush.parentmodel->name, parentname))))
 499                 {
 500                         mod->used = true;
 501                         return mod;
 502                 }
 503         }
 504
 505         // no match found, create a new one
 506         mod = (dp_model_t *) Mem_ExpandableArray_AllocRecord(&models);
 507         strlcpy(mod->name, name, sizeof(mod->name));
 508         if (parentname[0])
 509                 mod->brush.parentmodel = Mod_FindName(parentname, NULL);
 510         else
 511                 mod->brush.parentmodel = NULL;
 512         mod->loaded = false;
 513         mod->used = true;
 514         return mod;
 515 }
 516
 517 /*
 518 ==================
 519 Mod_ForName
 520
 521 Loads in a model for the given name
 522 ==================
 523 */
 524 dp_model_t *Mod_ForName(const char *name, qboolean crash, qboolean checkdisk, const char *parentname)
 525 {
 526         dp_model_t *model;
 527         model = Mod_FindName(name, parentname);
 528         if (!model->loaded || checkdisk)
 529                 Mod_LoadModel(model, crash, checkdisk);
 530         return model;
 531 }
 532
 533 /*
 534 ==================
 535 Mod_Reload
 536
 537 Reloads all models if they have changed
 538 ==================
 539 */
 540 void Mod_Reload(void)
 541 {
 542         int i, count;
 543         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 544         dp_model_t *mod;
 545
 546         SCR_PushLoadingScreen(false, "Reloading models", 1.0);
 547         count = 0;
 548         for (i = 0;i < nummodels;i++)
 549                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 550                         ++count;
 551         for (i = 0;i < nummodels;i++)
 552                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 553                 {
 554                         SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
 555                         Mod_LoadModel(mod, true, true);
 556                         SCR_PopLoadingScreen(false);
 557                 }
 558         SCR_PopLoadingScreen(false);
 559 }
 560
 561 unsigned char *mod_base;
 562
 563
 564 //=============================================================================
 565
 566 /*
 567 ================
 568 Mod_Print
 569 ================
 570 */
 571 static void Mod_Print(void)
 572 {
 573         int i;
 574         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 575         dp_model_t *mod;
 576
 577         Con_Print("Loaded models:\n");
 578         for (i = 0;i < nummodels;i++)
 579         {
 580                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
 581                 {
 582                         if (mod->brush.numsubmodels)
 583                                 Con_Printf("%4iK %s (%i submodels)\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name, mod->brush.numsubmodels);
 584                         else
 585                                 Con_Printf("%4iK %s\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name);
 586                 }
 587         }
 588 }
 589
 590 /*
 591 ================
 592 Mod_Precache
 593 ================
 594 */
 595 static void Mod_Precache(void)
 596 {
 597         if (Cmd_Argc() == 2)
 598                 Mod_ForName(Cmd_Argv(1), false, true, Cmd_Argv(1)[0] == '*' ? cl.model_name[1] : NULL);
 599         else
 600                 Con_Print("usage: modelprecache <filename>\n");
 601 }
 602
 603 int Mod_BuildVertexRemapTableFromElements(int numelements, const int *elements, int numvertices, int *remapvertices)
 604 {
 605         int i, count;
 606         unsigned char *used;
 607         used = (unsigned char *)Mem_Alloc(tempmempool, numvertices);
 608         memset(used, 0, numvertices);
 609         for (i = 0;i < numelements;i++)
 610                 used[elements[i]] = 1;
 611         for (i = 0, count = 0;i < numvertices;i++)
 612                 remapvertices[i] = used[i] ? count++ : -1;
 613         Mem_Free(used);
 614         return count;
 615 }
 616
 617 #if 1
 618 // fast way, using an edge hash
 619 #define TRIANGLEEDGEHASH 8192
 620 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 621 {
 622         int i, j, p, e1, e2, *n, hashindex, count, match;
 623         const int *e;
 624         typedef struct edgehashentry_s
 625         {
 626                 struct edgehashentry_s *next;
 627                 int triangle;
 628                 int element[2];
 629         }
 630         edgehashentry_t;
 631         edgehashentry_t *edgehash[TRIANGLEEDGEHASH], *edgehashentries, edgehashentriesbuffer[TRIANGLEEDGEHASH*3], *hash;
 632         memset(edgehash, 0, sizeof(edgehash));
 633         edgehashentries = edgehashentriesbuffer;
 634         // if there are too many triangles for the stack array, allocate larger buffer
 635         if (numtriangles > TRIANGLEEDGEHASH)
 636                 edgehashentries = (edgehashentry_t *)Mem_Alloc(tempmempool, numtriangles * 3 * sizeof(edgehashentry_t));
 637         // find neighboring triangles
 638         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 639         {
 640                 for (j = 0, p = 2;j < 3;p = j, j++)
 641                 {
 642                         e1 = e[p];
 643                         e2 = e[j];
 644                         // this hash index works for both forward and backward edges
 645                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 646                         hash = edgehashentries + i * 3 + j;
 647                         hash->next = edgehash[hashindex];
 648                         edgehash[hashindex] = hash;
 649                         hash->triangle = i;
 650                         hash->element[0] = e1;
 651                         hash->element[1] = e2;
 652                 }
 653         }
 654         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 655         {
 656                 for (j = 0, p = 2;j < 3;p = j, j++)
 657                 {
 658                         e1 = e[p];
 659                         e2 = e[j];
 660                         // this hash index works for both forward and backward edges
 661                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 662                         count = 0;
 663                         match = -1;
 664                         for (hash = edgehash[hashindex];hash;hash = hash->next)
 665                         {
 666                                 if (hash->element[0] == e2 && hash->element[1] == e1)
 667                                 {
 668                                         if (hash->triangle != i)
 669                                                 match = hash->triangle;
 670                                         count++;
 671                                 }
 672                                 else if ((hash->element[0] == e1 && hash->element[1] == e2))
 673                                         count++;
 674                         }
 675                         // detect edges shared by three triangles and make them seams
 676                         if (count > 2)
 677                                 match = -1;
 678                         n[p] = match;
 679                 }
 680
 681                 // also send a keepalive here (this can take a while too!)
 682                 CL_KeepaliveMessage(false);
 683         }
 684         // free the allocated buffer
 685         if (edgehashentries != edgehashentriesbuffer)
 686                 Mem_Free(edgehashentries);
 687 }
 688 #else
 689 // very slow but simple way
 690 static int Mod_FindTriangleWithEdge(const int *elements, int numtriangles, int start, int end, int ignore)
 691 {
 692         int i, match, count;
 693         count = 0;
 694         match = -1;
 695         for (i = 0;i < numtriangles;i++, elements += 3)
 696         {
 697                      if ((elements[0] == start && elements[1] == end)
 698                       || (elements[1] == start && elements[2] == end)
 699                       || (elements[2] == start && elements[0] == end))
 700                 {
 701                         if (i != ignore)
 702                                 match = i;
 703                         count++;
 704                 }
 705                 else if ((elements[1] == start && elements[0] == end)
 706                       || (elements[2] == start && elements[1] == end)
 707                       || (elements[0] == start && elements[2] == end))
 708                         count++;
 709         }
 710         // detect edges shared by three triangles and make them seams
 711         if (count > 2)
 712                 match = -1;
 713         return match;
 714 }
 715
 716 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 717 {
 718         int i, *n;
 719         const int *e;
 720         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 721         {
 722                 n[0] = Mod_FindTriangleWithEdge(elements, numtriangles, e[1], e[0], i);
 723                 n[1] = Mod_FindTriangleWithEdge(elements, numtriangles, e[2], e[1], i);
 724                 n[2] = Mod_FindTriangleWithEdge(elements, numtriangles, e[0], e[2], i);
 725         }
 726 }
 727 #endif
 728
 729 void Mod_ValidateElements(int *elements, int numtriangles, int firstvertex, int numverts, const char *filename, int fileline)
 730 {
 731         int i, warned = false, endvertex = firstvertex + numverts;
 732         for (i = 0;i < numtriangles * 3;i++)
 733         {
 734                 if (elements[i] < firstvertex || elements[i] >= endvertex)
 735                 {
 736                         if (!warned)
 737                         {
 738                                 warned = true;
 739                                 Con_Printf("Mod_ValidateElements: out of bounds elements detected at %s:%d\n", filename, fileline);
 740                         }
 741                         elements[i] = firstvertex;
 742                 }
 743         }
 744 }
 745
 746 // warning: this is an expensive function!
 747 void Mod_BuildNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const int *elements, float *normal3f, qboolean areaweighting)
 748 {
 749         int i, j;
 750         const int *element;
 751         float *vectorNormal;
 752         float areaNormal[3];
 753         // clear the vectors
 754         memset(normal3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 755         // process each vertex of each triangle and accumulate the results
 756         // use area-averaging, to make triangles with a big area have a bigger
 757         // weighting on the vertex normal than triangles with a small area
 758         // to do so, just add the 'normals' together (the bigger the area
 759         // the greater the length of the normal is
 760         element = elements;
 761         for (i = 0; i < numtriangles; i++, element += 3)
 762         {
 763                 TriangleNormal(
 764                         vertex3f + element[0] * 3,
 765                         vertex3f + element[1] * 3,
 766                         vertex3f + element[2] * 3,
 767                         areaNormal
 768                         );
 769
 770                 if (!areaweighting)
 771                         VectorNormalize(areaNormal);
 772
 773                 for (j = 0;j < 3;j++)
 774                 {
 775                         vectorNormal = normal3f + element[j] * 3;
 776                         vectorNormal[0] += areaNormal[0];
 777                         vectorNormal[1] += areaNormal[1];
 778                         vectorNormal[2] += areaNormal[2];
 779                 }
 780         }
 781         // and just normalize the accumulated vertex normal in the end
 782         vectorNormal = normal3f + 3 * firstvertex;
 783         for (i = 0; i < numvertices; i++, vectorNormal += 3)
 784                 VectorNormalize(vectorNormal);
 785 }
 786
 787 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)
 788 {
 789         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 790         // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 791         // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 792
 793         // 6 multiply, 9 subtract
 794         VectorSubtract(v1, v0, v10);
 795         VectorSubtract(v2, v0, v20);
 796         normal3f[0] = v20[1] * v10[2] - v20[2] * v10[1];
 797         normal3f[1] = v20[2] * v10[0] - v20[0] * v10[2];
 798         normal3f[2] = v20[0] * v10[1] - v20[1] * v10[0];
 799         // 12 multiply, 10 subtract
 800         tc10[1] = tc1[1] - tc0[1];
 801         tc20[1] = tc2[1] - tc0[1];
 802         svector3f[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 803         svector3f[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 804         svector3f[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 805         tc10[0] = tc1[0] - tc0[0];
 806         tc20[0] = tc2[0] - tc0[0];
 807         tvector3f[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 808         tvector3f[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 809         tvector3f[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 810         // 12 multiply, 4 add, 6 subtract
 811         f = DotProduct(svector3f, normal3f);
 812         svector3f[0] -= f * normal3f[0];
 813         svector3f[1] -= f * normal3f[1];
 814         svector3f[2] -= f * normal3f[2];
 815         f = DotProduct(tvector3f, normal3f);
 816         tvector3f[0] -= f * normal3f[0];
 817         tvector3f[1] -= f * normal3f[1];
 818         tvector3f[2] -= f * normal3f[2];
 819         // if texture is mapped the wrong way (counterclockwise), the tangents
 820         // have to be flipped, this is detected by calculating a normal from the
 821         // two tangents, and seeing if it is opposite the surface normal
 822         // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 823         CrossProduct(tvector3f, svector3f, tangentcross);
 824         if (DotProduct(tangentcross, normal3f) < 0)
 825         {
 826                 VectorNegate(svector3f, svector3f);
 827                 VectorNegate(tvector3f, tvector3f);
 828         }
 829 }
 830
 831 // warning: this is a very expensive function!
 832 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)
 833 {
 834         int i, tnum;
 835         float sdir[3], tdir[3], normal[3], *sv, *tv;
 836         const float *v0, *v1, *v2, *tc0, *tc1, *tc2, *n;
 837         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 838         const int *e;
 839         // clear the vectors
 840         memset(svector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 841         memset(tvector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 842         // process each vertex of each triangle and accumulate the results
 843         for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
 844         {
 845                 v0 = vertex3f + e[0] * 3;
 846                 v1 = vertex3f + e[1] * 3;
 847                 v2 = vertex3f + e[2] * 3;
 848                 tc0 = texcoord2f + e[0] * 2;
 849                 tc1 = texcoord2f + e[1] * 2;
 850                 tc2 = texcoord2f + e[2] * 2;
 851
 852                 // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 853                 // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 854
 855                 // calculate the edge directions and surface normal
 856                 // 6 multiply, 9 subtract
 857                 VectorSubtract(v1, v0, v10);
 858                 VectorSubtract(v2, v0, v20);
 859                 normal[0] = v20[1] * v10[2] - v20[2] * v10[1];
 860                 normal[1] = v20[2] * v10[0] - v20[0] * v10[2];
 861                 normal[2] = v20[0] * v10[1] - v20[1] * v10[0];
 862
 863                 // calculate the tangents
 864                 // 12 multiply, 10 subtract
 865                 tc10[1] = tc1[1] - tc0[1];
 866                 tc20[1] = tc2[1] - tc0[1];
 867                 sdir[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 868                 sdir[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 869                 sdir[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 870                 tc10[0] = tc1[0] - tc0[0];
 871                 tc20[0] = tc2[0] - tc0[0];
 872                 tdir[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 873                 tdir[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 874                 tdir[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 875
 876                 // if texture is mapped the wrong way (counterclockwise), the tangents
 877                 // have to be flipped, this is detected by calculating a normal from the
 878                 // two tangents, and seeing if it is opposite the surface normal
 879                 // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 880                 CrossProduct(tdir, sdir, tangentcross);
 881                 if (DotProduct(tangentcross, normal) < 0)
 882                 {
 883                         VectorNegate(sdir, sdir);
 884                         VectorNegate(tdir, tdir);
 885                 }
 886
 887                 if (!areaweighting)
 888                 {
 889                         VectorNormalize(sdir);
 890                         VectorNormalize(tdir);
 891                 }
 892                 for (i = 0;i < 3;i++)
 893                 {
 894                         VectorAdd(svector3f + e[i]*3, sdir, svector3f + e[i]*3);
 895                         VectorAdd(tvector3f + e[i]*3, tdir, tvector3f + e[i]*3);
 896                 }
 897         }
 898         // make the tangents completely perpendicular to the surface normal, and
 899         // then normalize them
 900         // 16 assignments, 2 divide, 2 sqrt, 2 negates, 14 adds, 24 multiplies
 901         for (i = 0, sv = svector3f + 3 * firstvertex, tv = tvector3f + 3 * firstvertex, n = normal3f + 3 * firstvertex;i < numvertices;i++, sv += 3, tv += 3, n += 3)
 902         {
 903                 f = -DotProduct(sv, n);
 904                 VectorMA(sv, f, n, sv);
 905                 VectorNormalize(sv);
 906                 f = -DotProduct(tv, n);
 907                 VectorMA(tv, f, n, tv);
 908                 VectorNormalize(tv);
 909         }
 910 }
 911
 912 void Mod_AllocSurfMesh(mempool_t *mempool, int numvertices, int numtriangles, qboolean lightmapoffsets, qboolean vertexcolors, qboolean neighbors)
 913 {
 914         unsigned char *data;
 915         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));
 916         loadmodel->surfmesh.num_vertices = numvertices;
 917         loadmodel->surfmesh.num_triangles = numtriangles;
 918         if (loadmodel->surfmesh.num_vertices)
 919         {
 920                 loadmodel->surfmesh.data_vertex3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 921                 loadmodel->surfmesh.data_svector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 922                 loadmodel->surfmesh.data_tvector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 923                 loadmodel->surfmesh.data_normal3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 924                 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 925                 loadmodel->surfmesh.data_texcoordlightmap2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 926                 if (vertexcolors)
 927                         loadmodel->surfmesh.data_lightmapcolor4f = (float *)data, data += sizeof(float[4]) * loadmodel->surfmesh.num_vertices;
 928                 if (lightmapoffsets)
 929                         loadmodel->surfmesh.data_lightmapoffsets = (int *)data, data += sizeof(int) * loadmodel->surfmesh.num_vertices;
 930         }
 931         if (loadmodel->surfmesh.num_triangles)
 932         {
 933                 loadmodel->surfmesh.data_element3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
 934                 if (neighbors)
 935                         loadmodel->surfmesh.data_neighbor3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
 936                 if (loadmodel->surfmesh.num_vertices <= 65536)
 937                         loadmodel->surfmesh.data_element3s = (unsigned short *)data, data += sizeof(unsigned short[3]) * loadmodel->surfmesh.num_triangles;
 938         }
 939 }
 940
 941 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)
 942 {
 943         shadowmesh_t *newmesh;
 944         unsigned char *data;
 945         int size;
 946         size = sizeof(shadowmesh_t);
 947         size += maxverts * sizeof(float[3]);
 948         if (light)
 949                 size += maxverts * sizeof(float[11]);
 950         size += maxtriangles * sizeof(int[3]);
 951         if (maxverts <= 65536)
 952                 size += maxtriangles * sizeof(unsigned short[3]);
 953         if (neighbors)
 954                 size += maxtriangles * sizeof(int[3]);
 955         if (expandable)
 956                 size += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *) + maxverts * sizeof(shadowmeshvertexhash_t);
 957         data = (unsigned char *)Mem_Alloc(mempool, size);
 958         newmesh = (shadowmesh_t *)data;data += sizeof(*newmesh);
 959         newmesh->map_diffuse = map_diffuse;
 960         newmesh->map_specular = map_specular;
 961         newmesh->map_normal = map_normal;
 962         newmesh->maxverts = maxverts;
 963         newmesh->maxtriangles = maxtriangles;
 964         newmesh->numverts = 0;
 965         newmesh->numtriangles = 0;
 966
 967         newmesh->vertex3f = (float *)data;data += maxverts * sizeof(float[3]);
 968         if (light)
 969         {
 970                 newmesh->svector3f = (float *)data;data += maxverts * sizeof(float[3]);
 971                 newmesh->tvector3f = (float *)data;data += maxverts * sizeof(float[3]);
 972                 newmesh->normal3f = (float *)data;data += maxverts * sizeof(float[3]);
 973                 newmesh->texcoord2f = (float *)data;data += maxverts * sizeof(float[2]);
 974         }
 975         newmesh->element3i = (int *)data;data += maxtriangles * sizeof(int[3]);
 976         if (neighbors)
 977         {
 978                 newmesh->neighbor3i = (int *)data;data += maxtriangles * sizeof(int[3]);
 979         }
 980         if (expandable)
 981         {
 982                 newmesh->vertexhashtable = (shadowmeshvertexhash_t **)data;data += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *);
 983                 newmesh->vertexhashentries = (shadowmeshvertexhash_t *)data;data += maxverts * sizeof(shadowmeshvertexhash_t);
 984         }
 985         if (maxverts <= 65536)
 986                 newmesh->element3s = (unsigned short *)data;data += maxtriangles * sizeof(unsigned short[3]);
 987         return newmesh;
 988 }
 989
 990 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh, int light, int neighbors)
 991 {
 992         shadowmesh_t *newmesh;
 993         newmesh = Mod_ShadowMesh_Alloc(mempool, oldmesh->numverts, oldmesh->numtriangles, oldmesh->map_diffuse, oldmesh->map_specular, oldmesh->map_normal, light, neighbors, false);
 994         newmesh->numverts = oldmesh->numverts;
 995         newmesh->numtriangles = oldmesh->numtriangles;
 996
 997         memcpy(newmesh->vertex3f, oldmesh->vertex3f, oldmesh->numverts * sizeof(float[3]));
 998         if (newmesh->svector3f && oldmesh->svector3f)
 999         {
1000                 memcpy(newmesh->svector3f, oldmesh->svector3f, oldmesh->numverts * sizeof(float[3]));
1001                 memcpy(newmesh->tvector3f, oldmesh->tvector3f, oldmesh->numverts * sizeof(float[3]));
1002                 memcpy(newmesh->normal3f, oldmesh->normal3f, oldmesh->numverts * sizeof(float[3]));
1003                 memcpy(newmesh->texcoord2f, oldmesh->texcoord2f, oldmesh->numverts * sizeof(float[2]));
1004         }
1005         memcpy(newmesh->element3i, oldmesh->element3i, oldmesh->numtriangles * sizeof(int[3]));
1006         if (newmesh->neighbor3i && oldmesh->neighbor3i)
1007                 memcpy(newmesh->neighbor3i, oldmesh->neighbor3i, oldmesh->numtriangles * sizeof(int[3]));
1008         return newmesh;
1009 }
1010
1011 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *vertex14f)
1012 {
1013         int hashindex, vnum;
1014         shadowmeshvertexhash_t *hash;
1015         // this uses prime numbers intentionally
1016         hashindex = (unsigned int) (vertex14f[0] * 2003 + vertex14f[1] * 4001 + vertex14f[2] * 7919) % SHADOWMESHVERTEXHASH;
1017         for (hash = mesh->vertexhashtable[hashindex];hash;hash = hash->next)
1018         {
1019                 vnum = (hash - mesh->vertexhashentries);
1020                 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]))
1021                  && (mesh->svector3f == NULL || (mesh->svector3f[vnum * 3 + 0] == vertex14f[3] && mesh->svector3f[vnum * 3 + 1] == vertex14f[4] && mesh->svector3f[vnum * 3 + 2] == vertex14f[5]))
1022                  && (mesh->tvector3f == NULL || (mesh->tvector3f[vnum * 3 + 0] == vertex14f[6] && mesh->tvector3f[vnum * 3 + 1] == vertex14f[7] && mesh->tvector3f[vnum * 3 + 2] == vertex14f[8]))
1023                  && (mesh->normal3f == NULL || (mesh->normal3f[vnum * 3 + 0] == vertex14f[9] && mesh->normal3f[vnum * 3 + 1] == vertex14f[10] && mesh->normal3f[vnum * 3 + 2] == vertex14f[11]))
1024                  && (mesh->texcoord2f == NULL || (mesh->texcoord2f[vnum * 2 + 0] == vertex14f[12] && mesh->texcoord2f[vnum * 2 + 1] == vertex14f[13])))
1025                         return hash - mesh->vertexhashentries;
1026         }
1027         vnum = mesh->numverts++;
1028         hash = mesh->vertexhashentries + vnum;
1029         hash->next = mesh->vertexhashtable[hashindex];
1030         mesh->vertexhashtable[hashindex] = hash;
1031         if (mesh->vertex3f) {mesh->vertex3f[vnum * 3 + 0] = vertex14f[0];mesh->vertex3f[vnum * 3 + 1] = vertex14f[1];mesh->vertex3f[vnum * 3 + 2] = vertex14f[2];}
1032         if (mesh->svector3f) {mesh->svector3f[vnum * 3 + 0] = vertex14f[3];mesh->svector3f[vnum * 3 + 1] = vertex14f[4];mesh->svector3f[vnum * 3 + 2] = vertex14f[5];}
1033         if (mesh->tvector3f) {mesh->tvector3f[vnum * 3 + 0] = vertex14f[6];mesh->tvector3f[vnum * 3 + 1] = vertex14f[7];mesh->tvector3f[vnum * 3 + 2] = vertex14f[8];}
1034         if (mesh->normal3f) {mesh->normal3f[vnum * 3 + 0] = vertex14f[9];mesh->normal3f[vnum * 3 + 1] = vertex14f[10];mesh->normal3f[vnum * 3 + 2] = vertex14f[11];}
1035         if (mesh->texcoord2f) {mesh->texcoord2f[vnum * 2 + 0] = vertex14f[12];mesh->texcoord2f[vnum * 2 + 1] = vertex14f[13];}
1036         return vnum;
1037 }
1038
1039 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex14f)
1040 {
1041         if (mesh->numtriangles == 0)
1042         {
1043                 // set the properties on this empty mesh to be more favorable...
1044                 // (note: this case only occurs for the first triangle added to a new mesh chain)
1045                 mesh->map_diffuse = map_diffuse;
1046                 mesh->map_specular = map_specular;
1047                 mesh->map_normal = map_normal;
1048         }
1049         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)
1050         {
1051                 if (mesh->next == NULL)
1052                         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);
1053                 mesh = mesh->next;
1054         }
1055         mesh->element3i[mesh->numtriangles * 3 + 0] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 0);
1056         mesh->element3i[mesh->numtriangles * 3 + 1] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 1);
1057         mesh->element3i[mesh->numtriangles * 3 + 2] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 2);
1058         mesh->numtriangles++;
1059 }
1060
1061 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)
1062 {
1063         int i, j, e;
1064         float vbuf[3*14], *v;
1065         memset(vbuf, 0, sizeof(vbuf));
1066         for (i = 0;i < numtris;i++)
1067         {
1068                 for (j = 0, v = vbuf;j < 3;j++, v += 14)
1069                 {
1070                         e = *element3i++;
1071                         if (vertex3f)
1072                         {
1073                                 v[0] = vertex3f[e * 3 + 0];
1074                                 v[1] = vertex3f[e * 3 + 1];
1075                                 v[2] = vertex3f[e * 3 + 2];
1076                         }
1077                         if (svector3f)
1078                         {
1079                                 v[3] = svector3f[e * 3 + 0];
1080                                 v[4] = svector3f[e * 3 + 1];
1081                                 v[5] = svector3f[e * 3 + 2];
1082                         }
1083                         if (tvector3f)
1084                         {
1085                                 v[6] = tvector3f[e * 3 + 0];
1086                                 v[7] = tvector3f[e * 3 + 1];
1087                                 v[8] = tvector3f[e * 3 + 2];
1088                         }
1089                         if (normal3f)
1090                         {
1091                                 v[9] = normal3f[e * 3 + 0];
1092                                 v[10] = normal3f[e * 3 + 1];
1093                                 v[11] = normal3f[e * 3 + 2];
1094                         }
1095                         if (texcoord2f)
1096                         {
1097                                 v[12] = texcoord2f[e * 2 + 0];
1098                                 v[13] = texcoord2f[e * 2 + 1];
1099                         }
1100                 }
1101                 Mod_ShadowMesh_AddTriangle(mempool, mesh, map_diffuse, map_specular, map_normal, vbuf);
1102         }
1103
1104         // the triangle calculation can take a while, so let's do a keepalive here
1105         CL_KeepaliveMessage(false);
1106 }
1107
1108 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)
1109 {
1110         // the preparation before shadow mesh initialization can take a while, so let's do a keepalive here
1111         CL_KeepaliveMessage(false);
1112
1113         return Mod_ShadowMesh_Alloc(mempool, maxverts, maxtriangles, map_diffuse, map_specular, map_normal, light, neighbors, expandable);
1114 }
1115
1116 static void Mod_ShadowMesh_CreateVBOs(shadowmesh_t *mesh)
1117 {
1118         if (!gl_support_arb_vertex_buffer_object)
1119                 return;
1120
1121         // element buffer is easy because it's just one array
1122         if (mesh->numtriangles)
1123         {
1124                 if (mesh->element3s)
1125                         mesh->ebo3s = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, mesh->element3s, mesh->numtriangles * sizeof(unsigned short[3]), "shadowmesh");
1126                 else
1127                         mesh->ebo3i = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, mesh->element3i, mesh->numtriangles * sizeof(unsigned int[3]), "shadowmesh");
1128         }
1129
1130         // vertex buffer is several arrays and we put them in the same buffer
1131         //
1132         // is this wise?  the texcoordtexture2f array is used with dynamic
1133         // vertex/svector/tvector/normal when rendering animated models, on the
1134         // other hand animated models don't use a lot of vertices anyway...
1135         if (mesh->numverts)
1136         {
1137                 size_t size;
1138                 unsigned char *mem;
1139                 size = 0;
1140                 mesh->vbooffset_vertex3f           = size;if (mesh->vertex3f          ) size += mesh->numverts * sizeof(float[3]);
1141                 mesh->vbooffset_svector3f          = size;if (mesh->svector3f         ) size += mesh->numverts * sizeof(float[3]);
1142                 mesh->vbooffset_tvector3f          = size;if (mesh->tvector3f         ) size += mesh->numverts * sizeof(float[3]);
1143                 mesh->vbooffset_normal3f           = size;if (mesh->normal3f          ) size += mesh->numverts * sizeof(float[3]);
1144                 mesh->vbooffset_texcoord2f         = size;if (mesh->texcoord2f        ) size += mesh->numverts * sizeof(float[2]);
1145                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
1146                 if (mesh->vertex3f          ) memcpy(mem + mesh->vbooffset_vertex3f          , mesh->vertex3f          , mesh->numverts * sizeof(float[3]));
1147                 if (mesh->svector3f         ) memcpy(mem + mesh->vbooffset_svector3f         , mesh->svector3f         , mesh->numverts * sizeof(float[3]));
1148                 if (mesh->tvector3f         ) memcpy(mem + mesh->vbooffset_tvector3f         , mesh->tvector3f         , mesh->numverts * sizeof(float[3]));
1149                 if (mesh->normal3f          ) memcpy(mem + mesh->vbooffset_normal3f          , mesh->normal3f          , mesh->numverts * sizeof(float[3]));
1150                 if (mesh->texcoord2f        ) memcpy(mem + mesh->vbooffset_texcoord2f        , mesh->texcoord2f        , mesh->numverts * sizeof(float[2]));
1151                 mesh->vbo = R_Mesh_CreateStaticBufferObject(GL_ARRAY_BUFFER_ARB, mem, size, "shadowmesh");
1152                 Mem_Free(mem);
1153         }
1154 }
1155
1156 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh, qboolean light, qboolean neighbors, qboolean createvbo)
1157 {
1158         shadowmesh_t *mesh, *newmesh, *nextmesh;
1159         // reallocate meshs to conserve space
1160         for (mesh = firstmesh, firstmesh = NULL;mesh;mesh = nextmesh)
1161         {
1162                 nextmesh = mesh->next;
1163                 if (mesh->numverts >= 3 && mesh->numtriangles >= 1)
1164                 {
1165                         newmesh = Mod_ShadowMesh_ReAlloc(mempool, mesh, light, neighbors);
1166                         newmesh->next = firstmesh;
1167                         firstmesh = newmesh;
1168                         if (newmesh->element3s)
1169                         {
1170                                 int i;
1171                                 for (i = 0;i < newmesh->numtriangles*3;i++)
1172                                         newmesh->element3s[i] = newmesh->element3i[i];
1173                         }
1174                         if (createvbo)
1175                                 Mod_ShadowMesh_CreateVBOs(newmesh);
1176                 }
1177                 Mem_Free(mesh);
1178         }
1179
1180         // this can take a while, so let's do a keepalive here
1181         CL_KeepaliveMessage(false);
1182
1183         return firstmesh;
1184 }
1185
1186 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius)
1187 {
1188         int i;
1189         shadowmesh_t *mesh;
1190         vec3_t nmins, nmaxs, ncenter, temp;
1191         float nradius2, dist2, *v;
1192         VectorClear(nmins);
1193         VectorClear(nmaxs);
1194         // calculate bbox
1195         for (mesh = firstmesh;mesh;mesh = mesh->next)
1196         {
1197                 if (mesh == firstmesh)
1198                 {
1199                         VectorCopy(mesh->vertex3f, nmins);
1200                         VectorCopy(mesh->vertex3f, nmaxs);
1201                 }
1202                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1203                 {
1204                         if (nmins[0] > v[0]) nmins[0] = v[0];if (nmaxs[0] < v[0]) nmaxs[0] = v[0];
1205                         if (nmins[1] > v[1]) nmins[1] = v[1];if (nmaxs[1] < v[1]) nmaxs[1] = v[1];
1206                         if (nmins[2] > v[2]) nmins[2] = v[2];if (nmaxs[2] < v[2]) nmaxs[2] = v[2];
1207                 }
1208         }
1209         // calculate center and radius
1210         ncenter[0] = (nmins[0] + nmaxs[0]) * 0.5f;
1211         ncenter[1] = (nmins[1] + nmaxs[1]) * 0.5f;
1212         ncenter[2] = (nmins[2] + nmaxs[2]) * 0.5f;
1213         nradius2 = 0;
1214         for (mesh = firstmesh;mesh;mesh = mesh->next)
1215         {
1216                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1217                 {
1218                         VectorSubtract(v, ncenter, temp);
1219                         dist2 = DotProduct(temp, temp);
1220                         if (nradius2 < dist2)
1221                                 nradius2 = dist2;
1222                 }
1223         }
1224         // return data
1225         if (mins)
1226                 VectorCopy(nmins, mins);
1227         if (maxs)
1228                 VectorCopy(nmaxs, maxs);
1229         if (center)
1230                 VectorCopy(ncenter, center);
1231         if (radius)
1232                 *radius = sqrt(nradius2);
1233 }
1234
1235 void Mod_ShadowMesh_Free(shadowmesh_t *mesh)
1236 {
1237         shadowmesh_t *nextmesh;
1238         for (;mesh;mesh = nextmesh)
1239         {
1240                 if (mesh->ebo3i)
1241                         R_Mesh_DestroyBufferObject(mesh->ebo3i);
1242                 if (mesh->ebo3s)
1243                         R_Mesh_DestroyBufferObject(mesh->ebo3s);
1244                 if (mesh->vbo)
1245                         R_Mesh_DestroyBufferObject(mesh->vbo);
1246                 nextmesh = mesh->next;
1247                 Mem_Free(mesh);
1248         }
1249 }
1250
1251 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)
1252 {
1253         float v[3], tc[3];
1254         v[0] = ix;
1255         v[1] = iy;
1256         if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
1257                 v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
1258         else
1259                 v[2] = 0;
1260         Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
1261         Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
1262         texcoord2f[0] = tc[0];
1263         texcoord2f[1] = tc[1];
1264 }
1265
1266 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)
1267 {
1268         float vup[3], vdown[3], vleft[3], vright[3];
1269         float tcup[3], tcdown[3], tcleft[3], tcright[3];
1270         float sv[3], tv[3], nl[3];
1271         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
1272         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
1273         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
1274         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
1275         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
1276         Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
1277         Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
1278         VectorAdd(svector3f, sv, svector3f);
1279         VectorAdd(tvector3f, tv, tvector3f);
1280         VectorAdd(normal3f, nl, normal3f);
1281         Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
1282         VectorAdd(svector3f, sv, svector3f);
1283         VectorAdd(tvector3f, tv, tvector3f);
1284         VectorAdd(normal3f, nl, normal3f);
1285         Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
1286         VectorAdd(svector3f, sv, svector3f);
1287         VectorAdd(tvector3f, tv, tvector3f);
1288         VectorAdd(normal3f, nl, normal3f);
1289 }
1290
1291 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)
1292 {
1293         int x, y, ix, iy, *e;
1294         e = element3i;
1295         for (y = 0;y < height;y++)
1296         {
1297                 for (x = 0;x < width;x++)
1298                 {
1299                         e[0] = (y + 1) * (width + 1) + (x + 0);
1300                         e[1] = (y + 0) * (width + 1) + (x + 0);
1301                         e[2] = (y + 1) * (width + 1) + (x + 1);
1302                         e[3] = (y + 0) * (width + 1) + (x + 0);
1303                         e[4] = (y + 0) * (width + 1) + (x + 1);
1304                         e[5] = (y + 1) * (width + 1) + (x + 1);
1305                         e += 6;
1306                 }
1307         }
1308         Mod_BuildTriangleNeighbors(neighbor3i, element3i, width*height*2);
1309         for (y = 0, iy = y1;y < height + 1;y++, iy++)
1310                 for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
1311                         Mod_GetTerrainVertexFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
1312 }
1313
1314 q3wavefunc_t Mod_LoadQ3Shaders_EnumerateWaveFunc(const char *s)
1315 {
1316         if (!strcasecmp(s, "sin"))             return Q3WAVEFUNC_SIN;
1317         if (!strcasecmp(s, "square"))          return Q3WAVEFUNC_SQUARE;
1318         if (!strcasecmp(s, "triangle"))        return Q3WAVEFUNC_TRIANGLE;
1319         if (!strcasecmp(s, "sawtooth"))        return Q3WAVEFUNC_SAWTOOTH;
1320         if (!strcasecmp(s, "inversesawtooth")) return Q3WAVEFUNC_INVERSESAWTOOTH;
1321         if (!strcasecmp(s, "noise"))           return Q3WAVEFUNC_NOISE;
1322         Con_DPrintf("Mod_LoadQ3Shaders: unknown wavefunc %s\n", s);
1323         return Q3WAVEFUNC_NONE;
1324 }
1325
1326 void Mod_FreeQ3Shaders(void)
1327 {
1328         Mem_FreePool(&q3shaders_mem);
1329 }
1330
1331 static void Q3Shader_AddToHash (q3shaderinfo_t* shader)
1332 {
1333         unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)shader->name, strlen (shader->name));
1334         q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1335         q3shader_hash_entry_t* lastEntry = NULL;
1336         while (entry != NULL)
1337         {
1338                 if (strcasecmp (entry->shader.name, shader->name) == 0)
1339                 {
1340                         Con_Printf("Shader '%s' already defined\n", shader->name);
1341                         return;
1342                 }
1343                 lastEntry = entry;
1344                 entry = entry->chain;
1345         }
1346         if (entry == NULL)
1347         {
1348                 if (lastEntry->shader.name[0] != 0)
1349                 {
1350                         /* Add to chain */
1351                         q3shader_hash_entry_t* newEntry = (q3shader_hash_entry_t*)
1352                           Mem_ExpandableArray_AllocRecord (&q3shader_data->hash_entries);
1353
1354                         while (lastEntry->chain != NULL) lastEntry = lastEntry->chain;
1355                         lastEntry->chain = newEntry;
1356                         newEntry->chain = NULL;
1357                         lastEntry = newEntry;
1358                 }
1359                 /* else: head of chain, in hash entry array */
1360                 entry = lastEntry;
1361         }
1362         memcpy (&entry->shader, shader, sizeof (q3shaderinfo_t));
1363 }
1364
1365 extern cvar_t r_picmipworld;
1366 void Mod_LoadQ3Shaders(void)
1367 {
1368         int j;
1369         int fileindex;
1370         fssearch_t *search;
1371         char *f;
1372         const char *text;
1373         q3shaderinfo_t shader;
1374         q3shaderinfo_layer_t *layer;
1375         int numparameters;
1376         char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
1377
1378         Mod_FreeQ3Shaders();
1379
1380         q3shaders_mem = Mem_AllocPool("q3shaders", 0, NULL);
1381         q3shader_data = (q3shader_data_t*)Mem_Alloc (q3shaders_mem,
1382                 sizeof (q3shader_data_t));
1383         Mem_ExpandableArray_NewArray (&q3shader_data->hash_entries,
1384                 q3shaders_mem, sizeof (q3shader_hash_entry_t), 256);
1385         Mem_ExpandableArray_NewArray (&q3shader_data->char_ptrs,
1386                 q3shaders_mem, sizeof (char**), 256);
1387
1388         search = FS_Search("scripts/*.shader", true, false);
1389         if (!search)
1390                 return;
1391         for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
1392         {
1393                 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
1394                 if (!f)
1395                         continue;
1396                 while (COM_ParseToken_QuakeC(&text, false))
1397                 {
1398                         memset (&shader, 0, sizeof(shader));
1399                         shader.reflectmin = 0;
1400                         shader.reflectmax = 1;
1401                         shader.refractfactor = 1;
1402                         Vector4Set(shader.refractcolor4f, 1, 1, 1, 1);
1403                         shader.reflectfactor = 1;
1404                         Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
1405                         shader.r_water_wateralpha = 1;
1406
1407                         strlcpy(shader.name, com_token, sizeof(shader.name));
1408                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1409                         {
1410                                 Con_Printf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
1411                                 break;
1412                         }
1413                         while (COM_ParseToken_QuakeC(&text, false))
1414                         {
1415                                 if (!strcasecmp(com_token, "}"))
1416                                         break;
1417                                 if (!strcasecmp(com_token, "{"))
1418                                 {
1419                                         static q3shaderinfo_layer_t dummy;
1420                                         if (shader.numlayers < Q3SHADER_MAXLAYERS)
1421                                         {
1422                                                 layer = shader.layers + shader.numlayers++;
1423                                         }
1424                                         else
1425                                         {
1426                                                 // parse and process it anyway, just don't store it (so a map $lightmap or such stuff still is found)
1427                                                 memset(&dummy, 0, sizeof(dummy));
1428                                                 layer = &dummy;
1429                                         }
1430                                         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1431                                         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1432                                         layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1433                                         layer->blendfunc[0] = GL_ONE;
1434                                         layer->blendfunc[1] = GL_ZERO;
1435                                         while (COM_ParseToken_QuakeC(&text, false))
1436                                         {
1437                                                 if (!strcasecmp(com_token, "}"))
1438                                                         break;
1439                                                 if (!strcasecmp(com_token, "\n"))
1440                                                         continue;
1441                                                 numparameters = 0;
1442                                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1443                                                 {
1444                                                         if (j < TEXTURE_MAXFRAMES + 4)
1445                                                         {
1446                                                                 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1447                                                                 numparameters = j + 1;
1448                                                         }
1449                                                         if (!COM_ParseToken_QuakeC(&text, true))
1450                                                                 break;
1451                                                 }
1452                                                 for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1453                                                         parameter[j][0] = 0;
1454                                                 if (developer.integer >= 100)
1455                                                 {
1456                                                         Con_Printf("%s %i: ", shader.name, shader.numlayers - 1);
1457                                                         for (j = 0;j < numparameters;j++)
1458                                                                 Con_Printf(" %s", parameter[j]);
1459                                                         Con_Print("\n");
1460                                                 }
1461                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
1462                                                 {
1463                                                         if (numparameters == 2)
1464                                                         {
1465                                                                 if (!strcasecmp(parameter[1], "add"))
1466                                                                 {
1467                                                                         layer->blendfunc[0] = GL_ONE;
1468                                                                         layer->blendfunc[1] = GL_ONE;
1469                                                                 }
1470                                                                 else if (!strcasecmp(parameter[1], "filter"))
1471                                                                 {
1472                                                                         layer->blendfunc[0] = GL_DST_COLOR;
1473                                                                         layer->blendfunc[1] = GL_ZERO;
1474                                                                 }
1475                                                                 else if (!strcasecmp(parameter[1], "blend"))
1476                                                                 {
1477                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1478                                                                         layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
1479                                                                 }
1480                                                         }
1481                                                         else if (numparameters == 3)
1482                                                         {
1483                                                                 int k;
1484                                                                 for (k = 0;k < 2;k++)
1485                                                                 {
1486                                                                         if (!strcasecmp(parameter[k+1], "GL_ONE"))
1487                                                                                 layer->blendfunc[k] = GL_ONE;
1488                                                                         else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
1489                                                                                 layer->blendfunc[k] = GL_ZERO;
1490                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
1491                                                                                 layer->blendfunc[k] = GL_SRC_COLOR;
1492                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
1493                                                                                 layer->blendfunc[k] = GL_SRC_ALPHA;
1494                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
1495                                                                                 layer->blendfunc[k] = GL_DST_COLOR;
1496                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
1497                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1498                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
1499                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
1500                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
1501                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
1502                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
1503                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
1504                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
1505                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1506                                                                         else
1507                                                                                 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
1508                                                                 }
1509                                                         }
1510                                                 }
1511                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
1512                                                         layer->alphatest = true;
1513                                                 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
1514                                                 {
1515                                                         if (!strcasecmp(parameter[0], "clampmap"))
1516                                                                 layer->clampmap = true;
1517                                                         layer->numframes = 1;
1518                                                         layer->framerate = 1;
1519                                                         layer->texturename = (char**)Mem_ExpandableArray_AllocRecord (
1520                                                                 &q3shader_data->char_ptrs);
1521                                                         layer->texturename[0] = Mem_strdup (q3shaders_mem, parameter[1]);
1522                                                         if (!strcasecmp(parameter[1], "$lightmap"))
1523                                                                 shader.lighting = true;
1524                                                 }
1525                                                 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
1526                                                 {
1527                                                         int i;
1528                                                         layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
1529                                                         layer->framerate = atof(parameter[1]);
1530                                                         layer->texturename = (char **) Mem_Alloc (q3shaders_mem, sizeof (char*) * layer->numframes);
1531                                                         for (i = 0;i < layer->numframes;i++)
1532                                                                 layer->texturename[i] = Mem_strdup (q3shaders_mem, parameter[i + 2]);
1533                                                 }
1534                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen"))
1535                                                 {
1536                                                         int i;
1537                                                         for (i = 0;i < numparameters - 2 && i < Q3RGBGEN_MAXPARMS;i++)
1538                                                                 layer->rgbgen.parms[i] = atof(parameter[i+2]);
1539                                                              if (!strcasecmp(parameter[1], "identity"))         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1540                                                         else if (!strcasecmp(parameter[1], "const"))            layer->rgbgen.rgbgen = Q3RGBGEN_CONST;
1541                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->rgbgen.rgbgen = Q3RGBGEN_ENTITY;
1542                                                         else if (!strcasecmp(parameter[1], "exactvertex"))      layer->rgbgen.rgbgen = Q3RGBGEN_EXACTVERTEX;
1543                                                         else if (!strcasecmp(parameter[1], "identitylighting")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITYLIGHTING;
1544                                                         else if (!strcasecmp(parameter[1], "lightingdiffuse"))  layer->rgbgen.rgbgen = Q3RGBGEN_LIGHTINGDIFFUSE;
1545                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSENTITY;
1546                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSVERTEX;
1547                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->rgbgen.rgbgen = Q3RGBGEN_VERTEX;
1548                                                         else if (!strcasecmp(parameter[1], "wave"))
1549                                                         {
1550                                                                 layer->rgbgen.rgbgen = Q3RGBGEN_WAVE;
1551                                                                 layer->rgbgen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1552                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1553                                                                         layer->rgbgen.waveparms[i] = atof(parameter[i+3]);
1554                                                         }
1555                                                         else Con_DPrintf("%s parsing warning: unknown rgbgen %s\n", search->filenames[fileindex], parameter[1]);
1556                                                 }
1557                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen"))
1558                                                 {
1559                                                         int i;
1560                                                         for (i = 0;i < numparameters - 2 && i < Q3ALPHAGEN_MAXPARMS;i++)
1561                                                                 layer->alphagen.parms[i] = atof(parameter[i+2]);
1562                                                              if (!strcasecmp(parameter[1], "identity"))         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1563                                                         else if (!strcasecmp(parameter[1], "const"))            layer->alphagen.alphagen = Q3ALPHAGEN_CONST;
1564                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->alphagen.alphagen = Q3ALPHAGEN_ENTITY;
1565                                                         else if (!strcasecmp(parameter[1], "lightingspecular")) layer->alphagen.alphagen = Q3ALPHAGEN_LIGHTINGSPECULAR;
1566                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSENTITY;
1567                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSVERTEX;
1568                                                         else if (!strcasecmp(parameter[1], "portal"))           layer->alphagen.alphagen = Q3ALPHAGEN_PORTAL;
1569                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->alphagen.alphagen = Q3ALPHAGEN_VERTEX;
1570                                                         else if (!strcasecmp(parameter[1], "wave"))
1571                                                         {
1572                                                                 layer->alphagen.alphagen = Q3ALPHAGEN_WAVE;
1573                                                                 layer->alphagen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1574                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1575                                                                         layer->alphagen.waveparms[i] = atof(parameter[i+3]);
1576                                                         }
1577                                                         else Con_DPrintf("%s parsing warning: unknown alphagen %s\n", search->filenames[fileindex], parameter[1]);
1578                                                 }
1579                                                 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "texgen") || !strcasecmp(parameter[0], "tcgen")))
1580                                                 {
1581                                                         int i;
1582                                                         // observed values: tcgen environment
1583                                                         // no other values have been observed in real shaders
1584                                                         for (i = 0;i < numparameters - 2 && i < Q3TCGEN_MAXPARMS;i++)
1585                                                                 layer->tcgen.parms[i] = atof(parameter[i+2]);
1586                                                              if (!strcasecmp(parameter[1], "base"))        layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1587                                                         else if (!strcasecmp(parameter[1], "texture"))     layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1588                                                         else if (!strcasecmp(parameter[1], "environment")) layer->tcgen.tcgen = Q3TCGEN_ENVIRONMENT;
1589                                                         else if (!strcasecmp(parameter[1], "lightmap"))    layer->tcgen.tcgen = Q3TCGEN_LIGHTMAP;
1590                                                         else if (!strcasecmp(parameter[1], "vector"))      layer->tcgen.tcgen = Q3TCGEN_VECTOR;
1591                                                         else Con_DPrintf("%s parsing warning: unknown tcgen mode %s\n", search->filenames[fileindex], parameter[1]);
1592                                                 }
1593                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "tcmod"))
1594                                                 {
1595                                                         int i, tcmodindex;
1596                                                         // observed values:
1597                                                         // tcmod rotate #
1598                                                         // tcmod scale # #
1599                                                         // tcmod scroll # #
1600                                                         // tcmod stretch sin # # # #
1601                                                         // tcmod stretch triangle # # # #
1602                                                         // tcmod transform # # # # # #
1603                                                         // tcmod turb # # # #
1604                                                         // tcmod turb sin # # # #  (this is bogus)
1605                                                         // no other values have been observed in real shaders
1606                                                         for (tcmodindex = 0;tcmodindex < Q3MAXTCMODS;tcmodindex++)
1607                                                                 if (!layer->tcmods[tcmodindex].tcmod)
1608                                                                         break;
1609                                                         if (tcmodindex < Q3MAXTCMODS)
1610                                                         {
1611                                                                 for (i = 0;i < numparameters - 2 && i < Q3TCMOD_MAXPARMS;i++)
1612                                                                         layer->tcmods[tcmodindex].parms[i] = atof(parameter[i+2]);
1613                                                                          if (!strcasecmp(parameter[1], "entitytranslate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ENTITYTRANSLATE;
1614                                                                 else if (!strcasecmp(parameter[1], "rotate"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ROTATE;
1615                                                                 else if (!strcasecmp(parameter[1], "scale"))           layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCALE;
1616                                                                 else if (!strcasecmp(parameter[1], "scroll"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCROLL;
1617                                                                 else if (!strcasecmp(parameter[1], "page"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_PAGE;
1618                                                                 else if (!strcasecmp(parameter[1], "stretch"))
1619                                                                 {
1620                                                                         layer->tcmods[tcmodindex].tcmod = Q3TCMOD_STRETCH;
1621                                                                         layer->tcmods[tcmodindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1622                                                                         for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1623                                                                                 layer->tcmods[tcmodindex].waveparms[i] = atof(parameter[i+3]);
1624                                                                 }
1625                                                                 else if (!strcasecmp(parameter[1], "transform"))       layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TRANSFORM;
1626                                                                 else if (!strcasecmp(parameter[1], "turb"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TURBULENT;
1627                                                                 else Con_DPrintf("%s parsing warning: unknown tcmod mode %s\n", search->filenames[fileindex], parameter[1]);
1628                                                         }
1629                                                         else
1630                                                                 Con_DPrintf("%s parsing warning: too many tcmods on one layer\n", search->filenames[fileindex]);
1631                                                 }
1632                                                 // break out a level if it was a closing brace (not using the character here to not confuse vim)
1633                                                 if (!strcasecmp(com_token, "}"))
1634                                                         break;
1635                                         }
1636                                         if (layer->rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE || layer->rgbgen.rgbgen == Q3RGBGEN_VERTEX)
1637                                                 shader.lighting = true;
1638                                         if (layer->alphagen.alphagen == Q3ALPHAGEN_VERTEX)
1639                                         {
1640                                                 if (layer == shader.layers + 0)
1641                                                 {
1642                                                         // vertex controlled transparency
1643                                                         shader.vertexalpha = true;
1644                                                 }
1645                                                 else
1646                                                 {
1647                                                         // multilayer terrain shader or similar
1648                                                         shader.textureblendalpha = true;
1649                                                 }
1650                                         }
1651                                         layer->texflags = TEXF_ALPHA | TEXF_PRECACHE;
1652                                         if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
1653                                                 layer->texflags |= TEXF_MIPMAP;
1654                                         if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
1655                                                 layer->texflags |= TEXF_PICMIP | TEXF_COMPRESS;
1656                                         if (layer->clampmap)
1657                                                 layer->texflags |= TEXF_CLAMP;
1658                                         continue;
1659                                 }
1660                                 numparameters = 0;
1661                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1662                                 {
1663                                         if (j < TEXTURE_MAXFRAMES + 4)
1664                                         {
1665                                                 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1666                                                 numparameters = j + 1;
1667                                         }
1668                                         if (!COM_ParseToken_QuakeC(&text, true))
1669                                                 break;
1670                                 }
1671                                 for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1672                                         parameter[j][0] = 0;
1673                                 if (fileindex == 0 && !strcasecmp(com_token, "}"))
1674                                         break;
1675                                 if (developer.integer >= 100)
1676                                 {
1677                                         Con_Printf("%s: ", shader.name);
1678                                         for (j = 0;j < numparameters;j++)
1679                                                 Con_Printf(" %s", parameter[j]);
1680                                         Con_Print("\n");
1681                                 }
1682                                 if (numparameters < 1)
1683                                         continue;
1684                                 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
1685                                 {
1686                                         if (!strcasecmp(parameter[1], "alphashadow"))
1687                                                 shader.surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
1688                                         else if (!strcasecmp(parameter[1], "areaportal"))
1689                                                 shader.surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
1690                                         else if (!strcasecmp(parameter[1], "botclip"))
1691                                                 shader.surfaceparms |= Q3SURFACEPARM_BOTCLIP;
1692                                         else if (!strcasecmp(parameter[1], "clusterportal"))
1693                                                 shader.surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
1694                                         else if (!strcasecmp(parameter[1], "detail"))
1695                                                 shader.surfaceparms |= Q3SURFACEPARM_DETAIL;
1696                                         else if (!strcasecmp(parameter[1], "donotenter"))
1697                                                 shader.surfaceparms |= Q3SURFACEPARM_DONOTENTER;
1698                                         else if (!strcasecmp(parameter[1], "dust"))
1699                                                 shader.surfaceparms |= Q3SURFACEPARM_DUST;
1700                                         else if (!strcasecmp(parameter[1], "hint"))
1701                                                 shader.surfaceparms |= Q3SURFACEPARM_HINT;
1702                                         else if (!strcasecmp(parameter[1], "fog"))
1703                                                 shader.surfaceparms |= Q3SURFACEPARM_FOG;
1704                                         else if (!strcasecmp(parameter[1], "lava"))
1705                                                 shader.surfaceparms |= Q3SURFACEPARM_LAVA;
1706                                         else if (!strcasecmp(parameter[1], "lightfilter"))
1707                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
1708                                         else if (!strcasecmp(parameter[1], "lightgrid"))
1709                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
1710                                         else if (!strcasecmp(parameter[1], "metalsteps"))
1711                                                 shader.surfaceparms |= Q3SURFACEPARM_METALSTEPS;
1712                                         else if (!strcasecmp(parameter[1], "nodamage"))
1713                                                 shader.surfaceparms |= Q3SURFACEPARM_NODAMAGE;
1714                                         else if (!strcasecmp(parameter[1], "nodlight"))
1715                                                 shader.surfaceparms |= Q3SURFACEPARM_NODLIGHT;
1716                                         else if (!strcasecmp(parameter[1], "nodraw"))
1717                                                 shader.surfaceparms |= Q3SURFACEPARM_NODRAW;
1718                                         else if (!strcasecmp(parameter[1], "nodrop"))
1719                                                 shader.surfaceparms |= Q3SURFACEPARM_NODROP;
1720                                         else if (!strcasecmp(parameter[1], "noimpact"))
1721                                                 shader.surfaceparms |= Q3SURFACEPARM_NOIMPACT;
1722                                         else if (!strcasecmp(parameter[1], "nolightmap"))
1723                                                 shader.surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
1724                                         else if (!strcasecmp(parameter[1], "nomarks"))
1725                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMARKS;
1726                                         else if (!strcasecmp(parameter[1], "nomipmaps"))
1727                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
1728                                         else if (!strcasecmp(parameter[1], "nonsolid"))
1729                                                 shader.surfaceparms |= Q3SURFACEPARM_NONSOLID;
1730                                         else if (!strcasecmp(parameter[1], "origin"))
1731                                                 shader.surfaceparms |= Q3SURFACEPARM_ORIGIN;
1732                                         else if (!strcasecmp(parameter[1], "playerclip"))
1733                                                 shader.surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
1734                                         else if (!strcasecmp(parameter[1], "sky"))
1735                                                 shader.surfaceparms |= Q3SURFACEPARM_SKY;
1736                                         else if (!strcasecmp(parameter[1], "slick"))
1737                                                 shader.surfaceparms |= Q3SURFACEPARM_SLICK;
1738                                         else if (!strcasecmp(parameter[1], "slime"))
1739                                                 shader.surfaceparms |= Q3SURFACEPARM_SLIME;
1740                                         else if (!strcasecmp(parameter[1], "structural"))
1741                                                 shader.surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
1742                                         else if (!strcasecmp(parameter[1], "trans"))
1743                                                 shader.surfaceparms |= Q3SURFACEPARM_TRANS;
1744                                         else if (!strcasecmp(parameter[1], "water"))
1745                                                 shader.surfaceparms |= Q3SURFACEPARM_WATER;
1746                                         else if (!strcasecmp(parameter[1], "pointlight"))
1747                                                 shader.surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
1748                                         else if (!strcasecmp(parameter[1], "antiportal"))
1749                                                 shader.surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
1750                                         else
1751                                                 Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
1752                                 }
1753                                 else if (!strcasecmp(parameter[0], "dpshadow"))
1754                                         shader.dpshadow = true;
1755                                 else if (!strcasecmp(parameter[0], "dpnoshadow"))
1756                                         shader.dpnoshadow = true;
1757                                 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
1758                                 {
1759                                         // some q3 skies don't have the sky parm set
1760                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
1761                                         strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
1762                                 }
1763                                 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
1764                                 {
1765                                         // some q3 skies don't have the sky parm set
1766                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
1767                                         if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
1768                                                 strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
1769                                 }
1770                                 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
1771                                 {
1772                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
1773                                                 shader.textureflags |= Q3TEXTUREFLAG_TWOSIDED;
1774                                 }
1775                                 else if (!strcasecmp(parameter[0], "nomipmaps"))
1776                                         shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
1777                                 else if (!strcasecmp(parameter[0], "nopicmip"))
1778                                         shader.textureflags |= Q3TEXTUREFLAG_NOPICMIP;
1779                                 else if (!strcasecmp(parameter[0], "polygonoffset"))
1780                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
1781                                 else if (!strcasecmp(parameter[0], "dp_refract") && numparameters >= 5)
1782                                 {
1783                                         shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
1784                                         shader.refractfactor = atof(parameter[1]);
1785                                         Vector4Set(shader.refractcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), 1);
1786                                 }
1787                                 else if (!strcasecmp(parameter[0], "dp_reflect") && numparameters >= 6)
1788                                 {
1789                                         shader.textureflags |= Q3TEXTUREFLAG_REFLECTION;
1790                                         shader.reflectfactor = atof(parameter[1]);
1791                                         Vector4Set(shader.reflectcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), atof(parameter[5]));
1792                                 }
1793                                 else if (!strcasecmp(parameter[0], "dp_water") && numparameters >= 12)
1794                                 {
1795                                         shader.textureflags |= Q3TEXTUREFLAG_WATERSHADER;
1796                                         shader.reflectmin = atof(parameter[1]);
1797                                         shader.reflectmax = atof(parameter[2]);
1798                                         shader.refractfactor = atof(parameter[3]);
1799                                         shader.reflectfactor = atof(parameter[4]);
1800                                         Vector4Set(shader.refractcolor4f, atof(parameter[5]), atof(parameter[6]), atof(parameter[7]), 1);
1801                                         Vector4Set(shader.reflectcolor4f, atof(parameter[8]), atof(parameter[9]), atof(parameter[10]), 1);
1802                                         shader.r_water_wateralpha = atof(parameter[11]);
1803                                 }
1804                                 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
1805                                 {
1806                                         int i, deformindex;
1807                                         for (deformindex = 0;deformindex < Q3MAXDEFORMS;deformindex++)
1808                                                 if (!shader.deforms[deformindex].deform)
1809                                                         break;
1810                                         if (deformindex < Q3MAXDEFORMS)
1811                                         {
1812                                                 for (i = 0;i < numparameters - 2 && i < Q3DEFORM_MAXPARMS;i++)
1813                                                         shader.deforms[deformindex].parms[i] = atof(parameter[i+2]);
1814                                                      if (!strcasecmp(parameter[1], "projectionshadow")) shader.deforms[deformindex].deform = Q3DEFORM_PROJECTIONSHADOW;
1815                                                 else if (!strcasecmp(parameter[1], "autosprite"      )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE;
1816                                                 else if (!strcasecmp(parameter[1], "autosprite2"     )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE2;
1817                                                 else if (!strcasecmp(parameter[1], "text0"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT0;
1818                                                 else if (!strcasecmp(parameter[1], "text1"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT1;
1819                                                 else if (!strcasecmp(parameter[1], "text2"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT2;
1820                                                 else if (!strcasecmp(parameter[1], "text3"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT3;
1821                                                 else if (!strcasecmp(parameter[1], "text4"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT4;
1822                                                 else if (!strcasecmp(parameter[1], "text5"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT5;
1823                                                 else if (!strcasecmp(parameter[1], "text6"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT6;
1824                                                 else if (!strcasecmp(parameter[1], "text7"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT7;
1825                                                 else if (!strcasecmp(parameter[1], "bulge"           )) shader.deforms[deformindex].deform = Q3DEFORM_BULGE;
1826                                                 else if (!strcasecmp(parameter[1], "normal"          )) shader.deforms[deformindex].deform = Q3DEFORM_NORMAL;
1827                                                 else if (!strcasecmp(parameter[1], "wave"            ))
1828                                                 {
1829                                                         shader.deforms[deformindex].deform = Q3DEFORM_WAVE;
1830                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[3]);
1831                                                         for (i = 0;i < numparameters - 4 && i < Q3WAVEPARMS;i++)
1832                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+4]);
1833                                                 }
1834                                                 else if (!strcasecmp(parameter[1], "move"            ))
1835                                                 {
1836                                                         shader.deforms[deformindex].deform = Q3DEFORM_MOVE;
1837                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[5]);
1838                                                         for (i = 0;i < numparameters - 6 && i < Q3WAVEPARMS;i++)
1839                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+6]);
1840                                                 }
1841                                         }
1842                                 }
1843                         }
1844                         // pick the primary layer to render with
1845                         if (shader.numlayers)
1846                         {
1847                                 shader.backgroundlayer = -1;
1848                                 shader.primarylayer = 0;
1849                                 // if lightmap comes first this is definitely an ordinary texture
1850                                 // if the first two layers have the correct blendfuncs and use vertex alpha, it is a blended terrain shader
1851                                 if ((shader.layers[shader.primarylayer].texturename != NULL)
1852                                   && !strcasecmp(shader.layers[shader.primarylayer].texturename[0], "$lightmap"))
1853                                 {
1854                                         shader.backgroundlayer = -1;
1855                                         shader.primarylayer = 1;
1856                                 }
1857                                 else if (shader.numlayers >= 2
1858                                 &&   shader.layers[1].alphagen.alphagen == Q3ALPHAGEN_VERTEX
1859                                 &&  (shader.layers[0].blendfunc[0] == GL_ONE       && shader.layers[0].blendfunc[1] == GL_ZERO                && !shader.layers[0].alphatest)
1860                                 && ((shader.layers[1].blendfunc[0] == GL_SRC_ALPHA && shader.layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
1861                                 ||  (shader.layers[1].blendfunc[0] == GL_ONE       && shader.layers[1].blendfunc[1] == GL_ZERO                &&  shader.layers[1].alphatest)))
1862                                 {
1863                                         // terrain blending or other effects
1864                                         shader.backgroundlayer = 0;
1865                                         shader.primarylayer = 1;
1866                                 }
1867                         }
1868                         // fix up multiple reflection types
1869                         if(shader.textureflags & Q3TEXTUREFLAG_WATERSHADER)
1870                                 shader.textureflags &= ~(Q3TEXTUREFLAG_REFRACTION | Q3TEXTUREFLAG_REFLECTION);
1871
1872                         Q3Shader_AddToHash (&shader);
1873                 }
1874                 Mem_Free(f);
1875         }
1876 }
1877
1878 q3shaderinfo_t *Mod_LookupQ3Shader(const char *name)
1879 {
1880         unsigned short hash;
1881         q3shader_hash_entry_t* entry;
1882         if (!q3shaders_mem)
1883                 Mod_LoadQ3Shaders();
1884         hash = CRC_Block_CaseInsensitive ((const unsigned char *)name, strlen (name));
1885         entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1886         while (entry != NULL)
1887         {
1888                 if (strcasecmp (entry->shader.name, name) == 0)
1889                         return &entry->shader;
1890                 entry = entry->chain;
1891         }
1892         return NULL;
1893 }
1894
1895 qboolean Mod_LoadTextureFromQ3Shader(texture_t *texture, const char *name, qboolean warnmissing, qboolean fallback, int defaulttexflags)
1896 {
1897         int j;
1898         int texflagsmask;
1899         qboolean success = true;
1900         q3shaderinfo_t *shader;
1901         if (!name)
1902                 name = "";
1903         strlcpy(texture->name, name, sizeof(texture->name));
1904         shader = name[0] ? Mod_LookupQ3Shader(name) : NULL;
1905
1906         texflagsmask = ~0;
1907         if(!(defaulttexflags & TEXF_PICMIP))
1908                 texflagsmask &= ~TEXF_PICMIP;
1909         if(!(defaulttexflags & TEXF_COMPRESS))
1910                 texflagsmask &= ~TEXF_COMPRESS;
1911
1912         if (shader)
1913         {
1914                 if (developer_loading.integer)
1915                         Con_Printf("%s: loaded shader for %s\n", loadmodel->name, name);
1916                 texture->surfaceparms = shader->surfaceparms;
1917
1918                 // allow disabling of picmip or compression by defaulttexflags
1919                 texture->textureflags = shader->textureflags & texflagsmask;
1920
1921                 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
1922                 {
1923                         texture->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
1924                         if (shader->skyboxname[0])
1925                         {
1926                                 // quake3 seems to append a _ to the skybox name, so this must do so as well
1927                                 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
1928                         }
1929                 }
1930                 else if ((texture->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
1931                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
1932                 else
1933                         texture->basematerialflags = MATERIALFLAG_WALL;
1934
1935                 if (shader->layers[0].alphatest)
1936                         texture->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
1937                 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
1938                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
1939                 if (shader->textureflags & Q3TEXTUREFLAG_POLYGONOFFSET)
1940                         texture->biaspolygonoffset -= 2;
1941                 if (shader->textureflags & Q3TEXTUREFLAG_REFRACTION)
1942                         texture->basematerialflags |= MATERIALFLAG_REFRACTION;
1943                 if (shader->textureflags & Q3TEXTUREFLAG_REFLECTION)
1944                         texture->basematerialflags |= MATERIALFLAG_REFLECTION;
1945                 if (shader->textureflags & Q3TEXTUREFLAG_WATERSHADER)
1946                         texture->basematerialflags |= MATERIALFLAG_WATERSHADER;
1947                 texture->customblendfunc[0] = GL_ONE;
1948                 texture->customblendfunc[1] = GL_ZERO;
1949                 if (shader->numlayers > 0)
1950                 {
1951                         texture->customblendfunc[0] = shader->layers[0].blendfunc[0];
1952                         texture->customblendfunc[1] = shader->layers[0].blendfunc[1];
1953 /*
1954 Q3 shader blendfuncs actually used in the game (* = supported by DP)
1955 * additive               GL_ONE GL_ONE
1956 additive weird         GL_ONE GL_SRC_ALPHA
1957 additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
1958 * alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
1959 alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
1960 brighten               GL_DST_COLOR GL_ONE
1961 brighten               GL_ONE GL_SRC_COLOR
1962 brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
1963 brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
1964 * modulate               GL_DST_COLOR GL_ZERO
1965 * modulate               GL_ZERO GL_SRC_COLOR
1966 modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
1967 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
1968 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
1969 * modulate x2            GL_DST_COLOR GL_SRC_COLOR
1970 * no blend               GL_ONE GL_ZERO
1971 nothing                GL_ZERO GL_ONE
1972 */
1973                         // if not opaque, figure out what blendfunc to use
1974                         if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
1975                         {
1976                                 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
1977                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1978                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
1979                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1980                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
1981                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1982                                 else
1983                                         texture->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
1984                         }
1985                 }
1986                 if (!shader->lighting)
1987                         texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
1988                 if (shader->primarylayer >= 0)
1989                 {
1990                         q3shaderinfo_layer_t* primarylayer = shader->layers + shader->primarylayer;
1991                         // copy over many primarylayer parameters
1992                         texture->rgbgen = primarylayer->rgbgen;
1993                         texture->alphagen = primarylayer->alphagen;
1994                         texture->tcgen = primarylayer->tcgen;
1995                         memcpy(texture->tcmods, primarylayer->tcmods, sizeof(texture->tcmods));
1996                         // load the textures
1997                         texture->numskinframes = primarylayer->numframes;
1998                         texture->skinframerate = primarylayer->framerate;
1999                         for (j = 0;j < primarylayer->numframes;j++)
2000                         {
2001                                 if(cls.state == ca_dedicated)
2002                                 {
2003                                         texture->skinframes[j] = NULL;
2004                                 }
2005                                 else if (!(texture->skinframes[j] = R_SkinFrame_LoadExternal(primarylayer->texturename[j], primarylayer->texflags & texflagsmask, false)))
2006                                 {
2007                                         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);
2008                                         texture->skinframes[j] = R_SkinFrame_LoadMissing();
2009                                 }
2010                         }
2011                 }
2012                 if (shader->backgroundlayer >= 0)
2013                 {
2014                         q3shaderinfo_layer_t* backgroundlayer = shader->layers + shader->backgroundlayer;
2015                         texture->backgroundnumskinframes = backgroundlayer->numframes;
2016                         texture->backgroundskinframerate = backgroundlayer->framerate;
2017                         for (j = 0;j < backgroundlayer->numframes;j++)
2018                         {
2019                                 if(cls.state == ca_dedicated)
2020                                 {
2021                                         texture->skinframes[j] = NULL;
2022                                 }
2023                                 else if (!(texture->backgroundskinframes[j] = R_SkinFrame_LoadExternal(backgroundlayer->texturename[j], backgroundlayer->texflags & texflagsmask, false)))
2024                                 {
2025                                         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);
2026                                         texture->backgroundskinframes[j] = R_SkinFrame_LoadMissing();
2027                                 }
2028                         }
2029                 }
2030                 if (shader->dpshadow)
2031                         texture->basematerialflags &= ~MATERIALFLAG_NOSHADOW;
2032                 if (shader->dpnoshadow)
2033                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW;
2034                 memcpy(texture->deforms, shader->deforms, sizeof(texture->deforms));
2035                 texture->reflectmin = shader->reflectmin;
2036                 texture->reflectmax = shader->reflectmax;
2037                 texture->refractfactor = shader->refractfactor;
2038                 Vector4Copy(shader->refractcolor4f, texture->refractcolor4f);
2039                 texture->reflectfactor = shader->reflectfactor;
2040                 Vector4Copy(shader->reflectcolor4f, texture->reflectcolor4f);
2041                 texture->r_water_wateralpha = shader->r_water_wateralpha;
2042         }
2043         else if (!strcmp(texture->name, "noshader") || !texture->name[0])
2044         {
2045                 if (developer.integer >= 100)
2046                         Con_Printf("^1%s:^7 using fallback noshader material for ^3\"%s\"\n", loadmodel->name, name);
2047                 texture->surfaceparms = 0;
2048         }
2049         else if (!strcmp(texture->name, "common/nodraw") || !strcmp(texture->name, "textures/common/nodraw"))
2050         {
2051                 if (developer.integer >= 100)
2052                         Con_Printf("^1%s:^7 using fallback nodraw material for ^3\"%s\"\n", loadmodel->name, name);
2053                 texture->surfaceparms = 0;
2054                 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2055         }
2056         else
2057         {
2058                 if (developer.integer >= 100)
2059                         Con_Printf("^1%s:^7 No shader found for texture ^3\"%s\"\n", loadmodel->name, texture->name);
2060                 texture->surfaceparms = 0;
2061                 if (texture->surfaceflags & Q3SURFACEFLAG_NODRAW)
2062                         texture->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2063                 else if (texture->surfaceflags & Q3SURFACEFLAG_SKY)
2064                         texture->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2065                 else
2066                         texture->basematerialflags |= MATERIALFLAG_WALL;
2067                 texture->numskinframes = 1;
2068                 if(cls.state == ca_dedicated)
2069                 {
2070                         texture->skinframes[0] = NULL;
2071                 }
2072                 else
2073                 {
2074                         if (fallback)
2075                         {
2076                                 qboolean has_alpha;
2077                                 if ((texture->skinframes[0] = R_SkinFrame_LoadExternal_CheckAlpha(texture->name, defaulttexflags, false, &has_alpha)))
2078                                 {
2079                                         if(has_alpha && (defaulttexflags & TEXF_ALPHA))
2080                                                 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2081                                 }
2082                                 else
2083                                         success = false;
2084                         }
2085                         else
2086                                 success = false;
2087                         if (!success && warnmissing)
2088                                 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"\n", loadmodel->name, texture->name);
2089                 }
2090         }
2091         // init the animation variables
2092         texture->currentframe = texture;
2093         if (texture->numskinframes < 1)
2094                 texture->numskinframes = 1;
2095         if (!texture->skinframes[0])
2096                 texture->skinframes[0] = R_SkinFrame_LoadMissing();
2097         texture->currentskinframe = texture->skinframes[0];
2098         texture->backgroundcurrentskinframe = texture->backgroundskinframes[0];
2099         return success;
2100 }
2101
2102 skinfile_t *Mod_LoadSkinFiles(void)
2103 {
2104         int i, words, line, wordsoverflow;
2105         char *text;
2106         const char *data;
2107         skinfile_t *skinfile = NULL, *first = NULL;
2108         skinfileitem_t *skinfileitem;
2109         char word[10][MAX_QPATH];
2110
2111 /*
2112 sample file:
2113 U_bodyBox,models/players/Legoman/BikerA2.tga
2114 U_RArm,models/players/Legoman/BikerA1.tga
2115 U_LArm,models/players/Legoman/BikerA1.tga
2116 U_armor,common/nodraw
2117 U_sword,common/nodraw
2118 U_shield,common/nodraw
2119 U_homb,common/nodraw
2120 U_backpack,common/nodraw
2121 U_colcha,common/nodraw
2122 tag_head,
2123 tag_weapon,
2124 tag_torso,
2125 */
2126         memset(word, 0, sizeof(word));
2127         for (i = 0;i < MAX_SKINS && (data = text = (char *)FS_LoadFile(va("%s_%i.skin", loadmodel->name, i), tempmempool, true, NULL));i++)
2128         {
2129                 // If it's the first file we parse
2130                 if (skinfile == NULL)
2131                 {
2132                         skinfile = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2133                         first = skinfile;
2134                 }
2135                 else
2136                 {
2137                         skinfile->next = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2138                         skinfile = skinfile->next;
2139                 }
2140                 skinfile->next = NULL;
2141
2142                 for(line = 0;;line++)
2143                 {
2144                         // parse line
2145                         if (!COM_ParseToken_QuakeC(&data, true))
2146                                 break;
2147                         if (!strcmp(com_token, "\n"))
2148                                 continue;
2149                         words = 0;
2150                         wordsoverflow = false;
2151                         do
2152                         {
2153                                 if (words < 10)
2154                                         strlcpy(word[words++], com_token, sizeof (word[0]));
2155                                 else
2156                                         wordsoverflow = true;
2157                         }
2158                         while (COM_ParseToken_QuakeC(&data, true) && strcmp(com_token, "\n"));
2159                         if (wordsoverflow)
2160                         {
2161                                 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);
2162                                 continue;
2163                         }
2164                         // words is always >= 1
2165                         if (!strcmp(word[0], "replace"))
2166                         {
2167                                 if (words == 3)
2168                                 {
2169                                         if (developer_loading.integer)
2170                                                 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
2171                                         skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2172                                         skinfileitem->next = skinfile->items;
2173                                         skinfile->items = skinfileitem;
2174                                         strlcpy (skinfileitem->name, word[1], sizeof (skinfileitem->name));
2175                                         strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2176                                 }
2177                                 else
2178                                         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]);
2179                         }
2180                         else if (words >= 2 && !strncmp(word[0], "tag_", 4))
2181                         {
2182                                 // tag name, like "tag_weapon,"
2183                                 // not used for anything (not even in Quake3)
2184                         }
2185                         else if (words >= 2 && !strcmp(word[1], ","))
2186                         {
2187                                 // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
2188                                 if (developer_loading.integer)
2189                                         Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
2190                                 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2191                                 skinfileitem->next = skinfile->items;
2192                                 skinfile->items = skinfileitem;
2193                                 strlcpy (skinfileitem->name, word[0], sizeof (skinfileitem->name));
2194                                 strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2195                         }
2196                         else
2197                                 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);
2198                 }
2199                 Mem_Free(text);
2200         }
2201         if (i)
2202                 loadmodel->numskins = i;
2203         return first;
2204 }
2205
2206 void Mod_FreeSkinFiles(skinfile_t *skinfile)
2207 {
2208         skinfile_t *next;
2209         skinfileitem_t *skinfileitem, *nextitem;
2210         for (;skinfile;skinfile = next)
2211         {
2212                 next = skinfile->next;
2213                 for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
2214                 {
2215                         nextitem = skinfileitem->next;
2216                         Mem_Free(skinfileitem);
2217                 }
2218                 Mem_Free(skinfile);
2219         }
2220 }
2221
2222 int Mod_CountSkinFiles(skinfile_t *skinfile)
2223 {
2224         int i;
2225         for (i = 0;skinfile;skinfile = skinfile->next, i++);
2226         return i;
2227 }
2228
2229 void Mod_SnapVertices(int numcomponents, int numvertices, float *vertices, float snap)
2230 {
2231         int i;
2232         double isnap = 1.0 / snap;
2233         for (i = 0;i < numvertices*numcomponents;i++)
2234                 vertices[i] = floor(vertices[i]*isnap)*snap;
2235 }
2236
2237 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
2238 {
2239         int i, outtriangles;
2240         float edgedir1[3], edgedir2[3], temp[3];
2241         // a degenerate triangle is one with no width (thickness, surface area)
2242         // these are characterized by having all 3 points colinear (along a line)
2243         // or having two points identical
2244         // the simplest check is to calculate the triangle's area
2245         for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
2246         {
2247                 // calculate first edge
2248                 VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir1);
2249                 VectorSubtract(vertex3f + inelement3i[2] * 3, vertex3f + inelement3i[0] * 3, edgedir2);
2250                 CrossProduct(edgedir1, edgedir2, temp);
2251                 if (VectorLength2(temp) < 0.001f)
2252                         continue; // degenerate triangle (no area)
2253                 // valid triangle (has area)
2254                 VectorCopy(inelement3i, outelement3i);
2255                 outelement3i += 3;
2256                 outtriangles++;
2257         }
2258         return outtriangles;
2259 }
2260
2261 void Mod_VertexRangeFromElements(int numelements, const int *elements, int *firstvertexpointer, int *lastvertexpointer)
2262 {
2263         int i, e;
2264         int firstvertex, lastvertex;
2265         if (numelements > 0 && elements)
2266         {
2267                 firstvertex = lastvertex = elements[0];
2268                 for (i = 1;i < numelements;i++)
2269                 {
2270                         e = elements[i];
2271                         firstvertex = min(firstvertex, e);
2272                         lastvertex = max(lastvertex, e);
2273                 }
2274         }
2275         else
2276                 firstvertex = lastvertex = 0;
2277         if (firstvertexpointer)
2278                 *firstvertexpointer = firstvertex;
2279         if (lastvertexpointer)
2280                 *lastvertexpointer = lastvertex;
2281 }
2282
2283 void Mod_MakeSortedSurfaces(dp_model_t *mod)
2284 {
2285         // make an optimal set of texture-sorted batches to draw...
2286         int j, t;
2287         int *firstsurfacefortexture;
2288         int *numsurfacesfortexture;
2289         if (!mod->sortedmodelsurfaces)
2290                 mod->sortedmodelsurfaces = (int *) Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->sortedmodelsurfaces));
2291         firstsurfacefortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*firstsurfacefortexture));
2292         numsurfacesfortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*numsurfacesfortexture));
2293         memset(numsurfacesfortexture, 0, mod->num_textures * sizeof(*numsurfacesfortexture));
2294         for (j = 0;j < mod->nummodelsurfaces;j++)
2295         {
2296                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2297                 int t = (int)(surface->texture - mod->data_textures);
2298                 numsurfacesfortexture[t]++;
2299         }
2300         j = 0;
2301         for (t = 0;t < mod->num_textures;t++)
2302         {
2303                 firstsurfacefortexture[t] = j;
2304                 j += numsurfacesfortexture[t];
2305         }
2306         for (j = 0;j < mod->nummodelsurfaces;j++)
2307         {
2308                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2309                 int t = (int)(surface->texture - mod->data_textures);
2310                 mod->sortedmodelsurfaces[firstsurfacefortexture[t]++] = j + mod->firstmodelsurface;
2311         }
2312         Mem_Free(firstsurfacefortexture);
2313         Mem_Free(numsurfacesfortexture);
2314 }
2315
2316 static void Mod_BuildVBOs(void)
2317 {
2318         if (!gl_support_arb_vertex_buffer_object)
2319                 return;
2320
2321         // element buffer is easy because it's just one array
2322         if (loadmodel->surfmesh.num_triangles)
2323         {
2324                 if (loadmodel->surfmesh.data_element3s)
2325                 {
2326                         int i;
2327                         for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2328                                 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2329                         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);
2330                 }
2331                 else
2332                         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);
2333         }
2334
2335         // vertex buffer is several arrays and we put them in the same buffer
2336         //
2337         // is this wise?  the texcoordtexture2f array is used with dynamic
2338         // vertex/svector/tvector/normal when rendering animated models, on the
2339         // other hand animated models don't use a lot of vertices anyway...
2340         if (loadmodel->surfmesh.num_vertices)
2341         {
2342                 size_t size;
2343                 unsigned char *mem;
2344                 size = 0;
2345                 loadmodel->surfmesh.vbooffset_vertex3f           = size;if (loadmodel->surfmesh.data_vertex3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2346                 loadmodel->surfmesh.vbooffset_svector3f          = size;if (loadmodel->surfmesh.data_svector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2347                 loadmodel->surfmesh.vbooffset_tvector3f          = size;if (loadmodel->surfmesh.data_tvector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2348                 loadmodel->surfmesh.vbooffset_normal3f           = size;if (loadmodel->surfmesh.data_normal3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2349                 loadmodel->surfmesh.vbooffset_texcoordtexture2f  = size;if (loadmodel->surfmesh.data_texcoordtexture2f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2350                 loadmodel->surfmesh.vbooffset_texcoordlightmap2f = size;if (loadmodel->surfmesh.data_texcoordlightmap2f) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2351                 loadmodel->surfmesh.vbooffset_lightmapcolor4f    = size;if (loadmodel->surfmesh.data_lightmapcolor4f   ) size += loadmodel->surfmesh.num_vertices * sizeof(float[4]);
2352                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
2353                 if (loadmodel->surfmesh.data_vertex3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_vertex3f          , loadmodel->surfmesh.data_vertex3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2354                 if (loadmodel->surfmesh.data_svector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_svector3f         , loadmodel->surfmesh.data_svector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2355                 if (loadmodel->surfmesh.data_tvector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_tvector3f         , loadmodel->surfmesh.data_tvector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2356                 if (loadmodel->surfmesh.data_normal3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_normal3f          , loadmodel->surfmesh.data_normal3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2357                 if (loadmodel->surfmesh.data_texcoordtexture2f ) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordtexture2f , loadmodel->surfmesh.data_texcoordtexture2f , loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2358                 if (loadmodel->surfmesh.data_texcoordlightmap2f) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordlightmap2f, loadmodel->surfmesh.data_texcoordlightmap2f, loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2359                 if (loadmodel->surfmesh.data_lightmapcolor4f   ) memcpy(mem + loadmodel->surfmesh.vbooffset_lightmapcolor4f   , loadmodel->surfmesh.data_lightmapcolor4f   , loadmodel->surfmesh.num_vertices * sizeof(float[4]));
2360                 loadmodel->surfmesh.vbo = R_Mesh_CreateStaticBufferObject(GL_ARRAY_BUFFER_ARB, mem, size, loadmodel->name);
2361                 Mem_Free(mem);
2362         }
2363 }
2364
2365 static void Mod_Decompile_OBJ(dp_model_t *model, const char *filename, const char *mtlfilename, const char *originalfilename)
2366 {
2367         int vertexindex, surfaceindex, triangleindex, textureindex, countvertices = 0, countsurfaces = 0, countfaces = 0, counttextures = 0;
2368         int a, b, c;
2369         const char *texname;
2370         const int *e;
2371         const float *v, *vn, *vt;
2372         size_t l;
2373         size_t outbufferpos = 0;
2374         size_t outbuffermax = 0x100000;
2375         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
2376         const msurface_t *surface;
2377         const int maxtextures = 256;
2378         char *texturenames = (char *) Z_Malloc(maxtextures * MAX_QPATH);
2379
2380         // construct the mtllib file
2381         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "# mtllib for %s exported by darkplaces engine\n", originalfilename);
2382         if (l > 0)
2383                 outbufferpos += l;
2384         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
2385         {
2386                 countsurfaces++;
2387                 countvertices += surface->num_vertices;
2388                 countfaces += surface->num_triangles;
2389                 texname = (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default";
2390                 for (textureindex = 0;textureindex < maxtextures && texturenames[textureindex*MAX_QPATH];textureindex++)
2391                         if (!strcmp(texturenames + textureindex * MAX_QPATH, texname))
2392                                 break;
2393                 if (textureindex >= maxtextures)
2394                         continue; // just a precaution
2395                 if (counttextures < textureindex + 1)
2396                         counttextures = textureindex + 1;
2397                 strlcpy(texturenames + textureindex * MAX_QPATH, texname, MAX_QPATH);
2398                 if (outbufferpos >= outbuffermax >> 1)
2399                 {
2400                         outbuffermax *= 2;
2401                         oldbuffer = outbuffer;
2402                         outbuffer = (char *) Z_Malloc(outbuffermax);
2403                         memcpy(outbuffer, oldbuffer, outbufferpos);
2404                         Z_Free(oldbuffer);
2405                 }
2406                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "newmtl %s\nNs 96.078431\nKa 0 0 0\nKd 0.64 0.64 0.64\nKs 0.5 0.5 0.5\nNi 1\nd 1\nillum 2\nmap_Kd %s%s\n\n", texname, texname, strstr(texname, ".tga") ? "" : ".tga");
2407                 if (l > 0)
2408                         outbufferpos += l;
2409         }
2410
2411         // write the mtllib file
2412         FS_WriteFile(mtlfilename, outbuffer, outbufferpos);
2413         outbufferpos = 0;
2414
2415         // construct the obj file
2416         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "# model exported from %s by darkplaces engine\n# %i vertices, %i faces, %i surfaces\nmtllib %s\n", originalfilename, countvertices, countfaces, countsurfaces, mtlfilename);
2417         if (l > 0)
2418                 outbufferpos += l;
2419         for (vertexindex = 0, v = model->surfmesh.data_vertex3f, vn = model->surfmesh.data_normal3f, vt = model->surfmesh.data_texcoordtexture2f;vertexindex < model->surfmesh.num_vertices;vertexindex++, v += 3, vn += 3, vt += 2)
2420         {
2421                 if (outbufferpos >= outbuffermax >> 1)
2422                 {
2423                         outbuffermax *= 2;
2424                         oldbuffer = outbuffer;
2425                         outbuffer = (char *) Z_Malloc(outbuffermax);
2426                         memcpy(outbuffer, oldbuffer, outbufferpos);
2427                         Z_Free(oldbuffer);
2428                 }
2429                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "v %f %f %f\nvn %f %f %f\nvt %f %f\n", v[0], v[2], -v[1], vn[0], vn[2], -vn[1], vt[0], 1-vt[1]);
2430                 if (l > 0)
2431                         outbufferpos += l;
2432         }
2433         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
2434         {
2435                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "usemtl %s\n", (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default");
2436                 if (l > 0)
2437                         outbufferpos += l;
2438                 for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
2439                 {
2440                         if (outbufferpos >= outbuffermax >> 1)
2441                         {
2442                                 outbuffermax *= 2;
2443                                 oldbuffer = outbuffer;
2444                                 outbuffer = (char *) Z_Malloc(outbuffermax);
2445                                 memcpy(outbuffer, oldbuffer, outbufferpos);
2446                                 Z_Free(oldbuffer);
2447                         }
2448                         a = e[0]+1;
2449                         b = e[2]+1;
2450                         c = e[1]+1;
2451                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "f %i/%i/%i %i/%i/%i %i/%i/%i\n", a,a,a,b,b,b,c,c,c);
2452                         if (l > 0)
2453                                 outbufferpos += l;
2454                 }
2455         }
2456
2457         // write the obj file
2458         FS_WriteFile(filename, outbuffer, outbufferpos);
2459
2460         // clean up
2461         Z_Free(outbuffer);
2462         Z_Free(texturenames);
2463
2464         // print some stats
2465         Con_Printf("Wrote %s (%i bytes, %i vertices, %i faces, %i surfaces with %i distinct textures)\n", filename, (int)outbufferpos, countvertices, countfaces, countsurfaces, counttextures);
2466 }
2467
2468 static void Mod_Decompile_SMD(dp_model_t *model, const char *filename, int firstpose, int numposes, qboolean writetriangles)
2469 {
2470         int countnodes = 0, counttriangles = 0, countframes = 0;
2471         int surfaceindex;
2472         int triangleindex;
2473         int transformindex;
2474         int poseindex;
2475         int cornerindex;
2476         float modelscale;
2477         const int *e;
2478         const float *pose;
2479         size_t l;
2480         size_t outbufferpos = 0;
2481         size_t outbuffermax = 0x100000;
2482         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
2483         const msurface_t *surface;
2484         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "version 1\nnodes\n");
2485         if (l > 0)
2486                 outbufferpos += l;
2487         modelscale = 1;
2488         if(model->num_poses >= 0)
2489                 modelscale = sqrt(model->data_poses[0] * model->data_poses[0] + model->data_poses[1] * model->data_poses[1] + model->data_poses[2] * model->data_poses[2]);
2490         if(fabs(modelscale - 1) > 1e-4)
2491         {
2492                 if(firstpose == 0) // only print the when writing the reference pose
2493                         Con_Printf("The model has an old-style model scale of %f\n", modelscale);
2494         }
2495         else
2496                 modelscale = 1;
2497         for (transformindex = 0;transformindex < model->num_bones;transformindex++)
2498         {
2499                 if (outbufferpos >= outbuffermax >> 1)
2500                 {
2501                         outbuffermax *= 2;
2502                         oldbuffer = outbuffer;
2503                         outbuffer = (char *) Z_Malloc(outbuffermax);
2504                         memcpy(outbuffer, oldbuffer, outbufferpos);
2505                         Z_Free(oldbuffer);
2506                 }
2507                 countnodes++;
2508                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i \"%s\" %3i\n", transformindex, model->data_bones[transformindex].name, model->data_bones[transformindex].parent);
2509                 if (l > 0)
2510                         outbufferpos += l;
2511         }
2512         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\nskeleton\n");
2513         if (l > 0)
2514                 outbufferpos += l;
2515         for (poseindex = 0, pose = model->data_poses + model->num_bones * 12 * firstpose;poseindex < numposes;poseindex++)
2516         {
2517                 countframes++;
2518                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "time %i\n", poseindex);
2519                 if (l > 0)
2520                         outbufferpos += l;
2521                 for (transformindex = 0;transformindex < model->num_bones;transformindex++, pose += 12)
2522                 {
2523                         float a, b, c;
2524                         float angles[3];
2525                         float mtest[3][4];
2526                         if (outbufferpos >= outbuffermax >> 1)
2527                         {
2528                                 outbuffermax *= 2;
2529                                 oldbuffer = outbuffer;
2530                                 outbuffer = (char *) Z_Malloc(outbuffermax);
2531                                 memcpy(outbuffer, oldbuffer, outbufferpos);
2532                                 Z_Free(oldbuffer);
2533                         }
2534
2535                         // strangely the smd angles are for a transposed matrix, so we
2536                         // have to generate a transposed matrix, then convert that...
2537                         mtest[0][0] = pose[ 0];
2538                         mtest[0][1] = pose[ 4];
2539                         mtest[0][2] = pose[ 8];
2540                         mtest[0][3] = pose[ 3];
2541                         mtest[1][0] = pose[ 1];
2542                         mtest[1][1] = pose[ 5];
2543                         mtest[1][2] = pose[ 9];
2544                         mtest[1][3] = pose[ 7];
2545                         mtest[2][0] = pose[ 2];
2546                         mtest[2][1] = pose[ 6];
2547                         mtest[2][2] = pose[10];
2548                         mtest[2][3] = pose[11];
2549                         AnglesFromVectors(angles, mtest[0], mtest[2], false);
2550                         if (angles[0] >= 180) angles[0] -= 360;
2551                         if (angles[1] >= 180) angles[1] -= 360;
2552                         if (angles[2] >= 180) angles[2] -= 360;
2553
2554                         a = DEG2RAD(angles[ROLL]);
2555                         b = DEG2RAD(angles[PITCH]);
2556                         c = DEG2RAD(angles[YAW]);
2557
2558 #if 0
2559 {
2560                         float cy, sy, cp, sp, cr, sr;
2561                         float test[3][4];
2562                         // smd matrix construction, for comparing to non-transposed m
2563                         sy = sin(c);
2564                         cy = cos(c);
2565                         sp = sin(b);
2566                         cp = cos(b);
2567                         sr = sin(a);
2568                         cr = cos(a);
2569
2570                         test[0][0] = cp*cy;
2571                         test[1][0] = cp*sy;
2572                         test[2][0] = -sp;
2573                         test[0][1] = sr*sp*cy+cr*-sy;
2574                         test[1][1] = sr*sp*sy+cr*cy;
2575                         test[2][1] = sr*cp;
2576                         test[0][2] = (cr*sp*cy+-sr*-sy);
2577                         test[1][2] = (cr*sp*sy+-sr*cy);
2578                         test[2][2] = cr*cp;
2579                         test[0][3] = pose[3];
2580                         test[1][3] = pose[7];
2581                         test[2][3] = pose[11];
2582 }
2583 #endif
2584                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i %f %f %f %f %f %f\n", transformindex, pose[3] * modelscale, pose[7] * modelscale, pose[11] * modelscale, DEG2RAD(angles[ROLL]), DEG2RAD(angles[PITCH]), DEG2RAD(angles[YAW]));
2585                         if (l > 0)
2586                                 outbufferpos += l;
2587                 }
2588         }
2589         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
2590         if (l > 0)
2591                 outbufferpos += l;
2592         if (writetriangles)
2593         {
2594                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "triangles\n");
2595                 if (l > 0)
2596                         outbufferpos += l;
2597                 for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
2598                 {
2599                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
2600                         {
2601                                 counttriangles++;
2602                                 if (outbufferpos >= outbuffermax >> 1)
2603                                 {
2604                                         outbuffermax *= 2;
2605                                         oldbuffer = outbuffer;
2606                                         outbuffer = (char *) Z_Malloc(outbuffermax);
2607                                         memcpy(outbuffer, oldbuffer, outbufferpos);
2608                                         Z_Free(oldbuffer);
2609                                 }
2610                                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%s\n", surface->texture && surface->texture->name[0] ? surface->texture->name : "default.bmp");
2611                                 if (l > 0)
2612                                         outbufferpos += l;
2613                                 for (cornerindex = 0;cornerindex < 3;cornerindex++)
2614                                 {
2615                                         const int index = e[2-cornerindex];
2616                                         const float *v = model->surfmesh.data_vertex3f + index * 3;
2617                                         const float *vn = model->surfmesh.data_normal3f + index * 3;
2618                                         const float *vt = model->surfmesh.data_texcoordtexture2f + index * 2;
2619                                         const int *wi = model->surfmesh.data_vertexweightindex4i + index * 4;
2620                                         const float *wf = model->surfmesh.data_vertexweightinfluence4f + index * 4;
2621                                              if (wf[3]) l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i %f %f %f %f %f %f %f %f 4 %i %f %i %f %i %f %i %f\n", wi[0], v[0], v[1], v[2], vn[0], vn[1], vn[2], vt[0], 1 - vt[1], wi[0], wf[0], wi[1], wf[1], wi[2], wf[2], wi[3], wf[3]);
2622                                         else if (wf[2]) l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i %f %f %f %f %f %f %f %f 3 %i %f %i %f %i %f\n"      , wi[0], v[0], v[1], v[2], vn[0], vn[1], vn[2], vt[0], 1 - vt[1], wi[0], wf[0], wi[1], wf[1], wi[2], wf[2]);
2623                                         else if (wf[1]) l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i %f %f %f %f %f %f %f %f 2 %i %f %i %f\n"            , wi[0], v[0], v[1], v[2], vn[0], vn[1], vn[2], vt[0], 1 - vt[1], wi[0], wf[0], wi[1], wf[1]);
2624                                         else            l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i %f %f %f %f %f %f %f %f\n"                          , wi[0], v[0], v[1], v[2], vn[0], vn[1], vn[2], vt[0], 1 - vt[1]);
2625                                         if (l > 0)
2626                                                 outbufferpos += l;
2627                                 }
2628                         }
2629                 }
2630                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
2631                 if (l > 0)
2632                         outbufferpos += l;
2633         }
2634
2635         FS_WriteFile(filename, outbuffer, outbufferpos);
2636         Z_Free(outbuffer);
2637
2638         Con_Printf("Wrote %s (%i bytes, %i nodes, %i frames, %i triangles)\n", filename, (int)outbufferpos, countnodes, countframes, counttriangles);
2639 }
2640
2641 /*
2642 ================
2643 Mod_Decompile_f
2644
2645 decompiles a model to editable files
2646 ================
2647 */
2648 static void Mod_Decompile_f(void)
2649 {
2650         int i, j, k, l, first, count;
2651         dp_model_t *mod;
2652         char inname[MAX_QPATH];
2653         char outname[MAX_QPATH];
2654         char mtlname[MAX_QPATH];
2655         char basename[MAX_QPATH];
2656         char animname[MAX_QPATH];
2657         char animname2[MAX_QPATH];
2658         char zymtextbuffer[16384];
2659         char dpmtextbuffer[16384];
2660         int zymtextsize = 0;
2661         int dpmtextsize = 0;
2662
2663         if (Cmd_Argc() != 2)
2664         {
2665                 Con_Print("usage: modeldecompile <filename>\n");
2666                 return;
2667         }
2668
2669         strlcpy(inname, Cmd_Argv(1), sizeof(inname));
2670         FS_StripExtension(inname, basename, sizeof(basename));
2671
2672         mod = Mod_ForName(inname, false, true, inname[0] == '*' ? cl.model_name[1] : NULL);
2673         if (mod->brush.submodel)
2674         {
2675                 // if we're decompiling a submodel, be sure to give it a proper name based on its parent
2676                 FS_StripExtension(cl.model_name[1], outname, sizeof(outname));
2677                 dpsnprintf(basename, sizeof(basename), "%s/%s", outname, mod->name);
2678                 outname[0] = 0;
2679         }
2680         if (!mod)
2681         {
2682                 Con_Print("No such model\n");
2683                 return;
2684         }
2685         if (!mod->surfmesh.num_triangles)
2686         {
2687                 Con_Print("Empty model (or sprite)\n");
2688                 return;
2689         }
2690
2691         // export OBJ if possible (not on sprites)
2692         if (mod->surfmesh.num_triangles)
2693         {
2694                 dpsnprintf(outname, sizeof(outname), "%s_decompiled.obj", basename);
2695                 dpsnprintf(mtlname, sizeof(mtlname), "%s_decompiled.mtl", basename);
2696                 Mod_Decompile_OBJ(mod, outname, mtlname, inname);
2697         }
2698
2699         // export SMD if possible (only for skeletal models)
2700         if (mod->surfmesh.num_triangles && mod->num_bones)
2701         {
2702                 dpsnprintf(outname, sizeof(outname), "%s_decompiled/ref1.smd", basename);
2703                 Mod_Decompile_SMD(mod, outname, 0, 1, true);
2704                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "output out.zym\nscale 1\norigin 0 0 0\nmesh ref1.smd\n");
2705                 if (l > 0) zymtextsize += l;
2706                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "outputdir .\nmodel out\nscale 1\norigin 0 0 0\nscene ref1.smd\n");
2707                 if (l > 0) dpmtextsize += l;
2708                 for (i = 0;i < mod->numframes;i = j)
2709                 {
2710                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
2711                         first = mod->animscenes[i].firstframe;
2712                         if (mod->animscenes[i].framecount > 1)
2713                         {
2714                                 // framegroup anim
2715                                 count = mod->animscenes[i].framecount;
2716                                 j = i + 1;
2717                         }
2718                         else
2719                         {
2720                                 // individual frame
2721                                 // check for additional frames with same name
2722                                 for (l = 0, k = strlen(animname);animname[l];l++)
2723                                         if ((animname[l] < '0' || animname[l] > '9') && animname[l] != '_')
2724                                                 k = l + 1;
2725                                 animname[k] = 0;
2726                                 count = (mod->num_poses / mod->num_bones) - first;
2727                                 for (j = i + 1;j < mod->numframes;j++)
2728                                 {
2729                                         strlcpy(animname2, mod->animscenes[j].name, sizeof(animname2));
2730                                         for (l = 0, k = strlen(animname2);animname2[l];l++)
2731                                                 if ((animname2[l] < '0' || animname2[l] > '9') && animname2[l] != '_')
2732                                                         k = l + 1;
2733                                         animname2[k] = 0;
2734                                         if (strcmp(animname2, animname) || mod->animscenes[j].framecount > 1)
2735                                         {
2736                                                 count = mod->animscenes[j].firstframe - first;
2737                                                 break;
2738                                         }
2739                                 }
2740                                 // if it's only one frame, use the original frame name
2741                                 if (j == i + 1)
2742                                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
2743
2744                         }
2745                         dpsnprintf(outname, sizeof(outname), "%s_decompiled/%s.smd", basename, animname);
2746                         Mod_Decompile_SMD(mod, outname, first, count, false);
2747                         if (zymtextsize < (int)sizeof(zymtextbuffer) - 100)
2748                         {
2749                                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "scene %s.smd fps %g\n", animname, mod->animscenes[i].framerate);
2750                                 if (l > 0) zymtextsize += l;
2751                         }
2752                         if (dpmtextsize < (int)sizeof(dpmtextbuffer) - 100)
2753                         {
2754                                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "scene %s.smd\n", animname);
2755                                 if (l > 0) dpmtextsize += l;
2756                         }
2757                 }
2758                 if (zymtextsize)
2759                         FS_WriteFile(va("%s_decompiled/out_zym.txt", basename), zymtextbuffer, (fs_offset_t)zymtextsize);
2760                 if (dpmtextsize)
2761                         FS_WriteFile(va("%s_decompiled/out_dpm.txt", basename), dpmtextbuffer, (fs_offset_t)dpmtextsize);
2762         }
2763 }
2764