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 #include "polygon.h"
  29
  30 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"};
  31 cvar_t mod_generatelightmaps_unitspersample = {CVAR_SAVE, "mod_generatelightmaps_unitspersample", "8", "lightmap resolution"};
  32 cvar_t mod_generatelightmaps_borderpixels = {CVAR_SAVE, "mod_generatelightmaps_borderpixels", "2", "extra space around polygons to prevent sampling artifacts"};
  33 cvar_t mod_generatelightmaps_texturesize = {CVAR_SAVE, "mod_generatelightmaps_texturesize", "1024", "size of lightmap textures"};
  34 cvar_t mod_generatelightmaps_lightmapsamples = {CVAR_SAVE, "mod_generatelightmaps_lightmapsamples", "16", "number of shadow tests done per lightmap pixel"};
  35 cvar_t mod_generatelightmaps_vertexsamples = {CVAR_SAVE, "mod_generatelightmaps_vertexsamples", "16", "number of shadow tests done per vertex"};
  36 cvar_t mod_generatelightmaps_gridsamples = {CVAR_SAVE, "mod_generatelightmaps_gridsamples", "64", "number of shadow tests done per lightgrid cell"};
  37 cvar_t mod_generatelightmaps_lightmapradius = {CVAR_SAVE, "mod_generatelightmaps_lightmapradius", "16", "sampling area around each lightmap pixel"};
  38 cvar_t mod_generatelightmaps_vertexradius = {CVAR_SAVE, "mod_generatelightmaps_vertexradius", "16", "sampling area around each vertex"};
  39 cvar_t mod_generatelightmaps_gridradius = {CVAR_SAVE, "mod_generatelightmaps_gridradius", "64", "sampling area around each lightgrid cell center"};
  40
  41 dp_model_t *loadmodel;
  42
  43 static mempool_t *mod_mempool;
  44 static memexpandablearray_t models;
  45
  46 static mempool_t* q3shaders_mem;
  47 typedef struct q3shader_hash_entry_s
  48 {
  49   q3shaderinfo_t shader;
  50   struct q3shader_hash_entry_s* chain;
  51 } q3shader_hash_entry_t;
  52 #define Q3SHADER_HASH_SIZE  1021
  53 typedef struct q3shader_data_s
  54 {
  55   memexpandablearray_t hash_entries;
  56   q3shader_hash_entry_t hash[Q3SHADER_HASH_SIZE];
  57   memexpandablearray_t char_ptrs;
  58 } q3shader_data_t;
  59 static q3shader_data_t* q3shader_data;
  60
  61 static void mod_start(void)
  62 {
  63         int i, count;
  64         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  65         dp_model_t *mod;
  66
  67         SCR_PushLoadingScreen(false, "Loading models", 1.0);
  68         count = 0;
  69         for (i = 0;i < nummodels;i++)
  70                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  71                         if (mod->used)
  72                                 ++count;
  73         for (i = 0;i < nummodels;i++)
  74                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  75                         if (mod->used)
  76                         {
  77                                 SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
  78                                 Mod_LoadModel(mod, true, false);
  79                                 SCR_PopLoadingScreen(false);
  80                         }
  81         SCR_PopLoadingScreen(false);
  82 }
  83
  84 static void mod_shutdown(void)
  85 {
  86         int i;
  87         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  88         dp_model_t *mod;
  89
  90         for (i = 0;i < nummodels;i++)
  91                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && (mod->loaded || mod->mempool))
  92                         Mod_UnloadModel(mod);
  93
  94         Mod_FreeQ3Shaders();
  95 }
  96
  97 static void mod_newmap(void)
  98 {
  99         msurface_t *surface;
 100         int i, j, k, surfacenum, ssize, tsize;
 101         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 102         dp_model_t *mod;
 103
 104         for (i = 0;i < nummodels;i++)
 105         {
 106                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool)
 107                 {
 108                         for (j = 0;j < mod->num_textures && mod->data_textures;j++)
 109                         {
 110                                 for (k = 0;k < mod->data_textures[j].numskinframes;k++)
 111                                         R_SkinFrame_MarkUsed(mod->data_textures[j].skinframes[k]);
 112                                 for (k = 0;k < mod->data_textures[j].backgroundnumskinframes;k++)
 113                                         R_SkinFrame_MarkUsed(mod->data_textures[j].backgroundskinframes[k]);
 114                         }
 115                         if (mod->brush.solidskyskinframe)
 116                                 R_SkinFrame_MarkUsed(mod->brush.solidskyskinframe);
 117                         if (mod->brush.alphaskyskinframe)
 118                                 R_SkinFrame_MarkUsed(mod->brush.alphaskyskinframe);
 119                 }
 120         }
 121
 122         if (!cl_stainmaps_clearonload.integer)
 123                 return;
 124
 125         for (i = 0;i < nummodels;i++)
 126         {
 127                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool && mod->data_surfaces)
 128                 {
 129                         for (surfacenum = 0, surface = mod->data_surfaces;surfacenum < mod->num_surfaces;surfacenum++, surface++)
 130                         {
 131                                 if (surface->lightmapinfo && surface->lightmapinfo->stainsamples)
 132                                 {
 133                                         ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
 134                                         tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
 135                                         memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
 136                                         mod->brushq1.lightmapupdateflags[surfacenum] = true;
 137                                 }
 138                         }
 139                 }
 140         }
 141 }
 142
 143 /*
 144 ===============
 145 Mod_Init
 146 ===============
 147 */
 148 static void Mod_Print(void);
 149 static void Mod_Precache (void);
 150 static void Mod_Decompile_f(void);
 151 static void Mod_BuildVBOs(void);
 152 static void Mod_GenerateLightmaps_f(void);
 153 void Mod_Init (void)
 154 {
 155         mod_mempool = Mem_AllocPool("modelinfo", 0, NULL);
 156         Mem_ExpandableArray_NewArray(&models, mod_mempool, sizeof(dp_model_t), 16);
 157
 158         Mod_BrushInit();
 159         Mod_AliasInit();
 160         Mod_SpriteInit();
 161
 162         Cvar_RegisterVariable(&r_mipskins);
 163         Cvar_RegisterVariable(&mod_generatelightmaps_unitspersample);
 164         Cvar_RegisterVariable(&mod_generatelightmaps_borderpixels);
 165         Cvar_RegisterVariable(&mod_generatelightmaps_texturesize);
 166
 167         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapsamples);
 168         Cvar_RegisterVariable(&mod_generatelightmaps_vertexsamples);
 169         Cvar_RegisterVariable(&mod_generatelightmaps_gridsamples);
 170         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapradius);
 171         Cvar_RegisterVariable(&mod_generatelightmaps_vertexradius);
 172         Cvar_RegisterVariable(&mod_generatelightmaps_gridradius);
 173
 174         Cmd_AddCommand ("modellist", Mod_Print, "prints a list of loaded models");
 175         Cmd_AddCommand ("modelprecache", Mod_Precache, "load a model");
 176         Cmd_AddCommand ("modeldecompile", Mod_Decompile_f, "exports a model in several formats for editing purposes");
 177         Cmd_AddCommand ("mod_generatelightmaps", Mod_GenerateLightmaps_f, "rebuilds lighting on current worldmodel");
 178 }
 179
 180 void Mod_RenderInit(void)
 181 {
 182         R_RegisterModule("Models", mod_start, mod_shutdown, mod_newmap);
 183 }
 184
 185 void Mod_UnloadModel (dp_model_t *mod)
 186 {
 187         char name[MAX_QPATH];
 188         qboolean used;
 189         dp_model_t *parentmodel;
 190
 191         if (developer_loading.integer)
 192                 Con_Printf("unloading model %s\n", mod->name);
 193
 194         strlcpy(name, mod->name, sizeof(name));
 195         parentmodel = mod->brush.parentmodel;
 196         used = mod->used;
 197         if (mod->surfmesh.ebo3i)
 198                 R_Mesh_DestroyBufferObject(mod->surfmesh.ebo3i);
 199         if (mod->surfmesh.ebo3s)
 200                 R_Mesh_DestroyBufferObject(mod->surfmesh.ebo3s);
 201         if (mod->surfmesh.vbo)
 202                 R_Mesh_DestroyBufferObject(mod->surfmesh.vbo);
 203         // free textures/memory attached to the model
 204         R_FreeTexturePool(&mod->texturepool);
 205         Mem_FreePool(&mod->mempool);
 206         // clear the struct to make it available
 207         memset(mod, 0, sizeof(dp_model_t));
 208         // restore the fields we want to preserve
 209         strlcpy(mod->name, name, sizeof(mod->name));
 210         mod->brush.parentmodel = parentmodel;
 211         mod->used = used;
 212         mod->loaded = false;
 213 }
 214
 215 void R_Model_Null_Draw(entity_render_t *ent)
 216 {
 217         return;
 218 }
 219
 220
 221 typedef void (*mod_framegroupify_parsegroups_t) (unsigned int i, int start, int len, float fps, qboolean loop, void *pass);
 222
 223 int Mod_FrameGroupify_ParseGroups(const char *buf, mod_framegroupify_parsegroups_t cb, void *pass)
 224 {
 225         const char *bufptr;
 226         int start, len;
 227         float fps;
 228         unsigned int i;
 229         qboolean loop;
 230
 231         bufptr = buf;
 232         i = 0;
 233         for(;;)
 234         {
 235                 // an anim scene!
 236                 if (!COM_ParseToken_Simple(&bufptr, true, false))
 237                         break;
 238                 if (!strcmp(com_token, "\n"))
 239                         continue; // empty line
 240                 start = atoi(com_token);
 241                 if (!COM_ParseToken_Simple(&bufptr, true, false))
 242                         break;
 243                 if (!strcmp(com_token, "\n"))
 244                 {
 245                         Con_Printf("framegroups file: missing number of frames\n");
 246                         continue;
 247                 }
 248                 len = atoi(com_token);
 249                 if (!COM_ParseToken_Simple(&bufptr, true, false))
 250                         break;
 251                 // we default to looping as it's usually wanted, so to NOT loop you append a 0
 252                 if (strcmp(com_token, "\n"))
 253                 {
 254                         fps = atof(com_token);
 255                         if (!COM_ParseToken_Simple(&bufptr, true, false))
 256                                 break;
 257                         if (strcmp(com_token, "\n"))
 258                                 loop = atoi(com_token) != 0;
 259                         else
 260                                 loop = true;
 261                 }
 262                 else
 263                 {
 264                         fps = 20;
 265                         loop = true;
 266                 }
 267
 268                 if(cb)
 269                         cb(i, start, len, fps, loop, pass);
 270                 ++i;
 271         }
 272
 273         return i;
 274 }
 275
 276 void Mod_FrameGroupify_ParseGroups_Count (unsigned int i, int start, int len, float fps, qboolean loop, void *pass)
 277 {
 278         unsigned int *cnt = (unsigned int *) pass;
 279         ++*cnt;
 280 }
 281
 282 void Mod_FrameGroupify_ParseGroups_Store (unsigned int i, int start, int len, float fps, qboolean loop, void *pass)
 283 {
 284         dp_model_t *mod = (dp_model_t *) pass;
 285         animscene_t *anim = &mod->animscenes[i];
 286         dpsnprintf(anim->name, sizeof(anim[i].name), "groupified_%d", i);
 287         anim->firstframe = bound(0, start, mod->num_poses - 1);
 288         anim->framecount = bound(1, len, mod->num_poses - anim->firstframe);
 289         anim->framerate = max(1, fps);
 290         anim->loop = !!loop;
 291         //Con_Printf("frame group %d is %d %d %f %d\n", i, start, len, fps, loop);
 292 }
 293
 294 void Mod_FrameGroupify(dp_model_t *mod, const char *buf)
 295 {
 296         unsigned int cnt;
 297
 298         // 0. count
 299         cnt = Mod_FrameGroupify_ParseGroups(buf, NULL, NULL);
 300         if(!cnt)
 301         {
 302                 Con_Printf("no scene found in framegroups file, aborting\n");
 303                 return;
 304         }
 305         mod->numframes = cnt;
 306
 307         // 1. reallocate
 308         // (we do not free the previous animscenes, but model unloading will free the pool owning them, so it's okay)
 309         mod->animscenes = (animscene_t *) Mem_Alloc(mod->mempool, sizeof(animscene_t) * mod->numframes);
 310
 311         // 2. parse
 312         Mod_FrameGroupify_ParseGroups(buf, Mod_FrameGroupify_ParseGroups_Store, mod);
 313 }
 314
 315 /*
 316 ==================
 317 Mod_LoadModel
 318
 319 Loads a model
 320 ==================
 321 */
 322 dp_model_t *Mod_LoadModel(dp_model_t *mod, qboolean crash, qboolean checkdisk)
 323 {
 324         int num;
 325         unsigned int crc;
 326         void *buf;
 327         fs_offset_t filesize;
 328
 329         mod->used = true;
 330
 331         if (mod->name[0] == '*') // submodel
 332                 return mod;
 333
 334         if (!strcmp(mod->name, "null"))
 335         {
 336                 if(mod->loaded)
 337                         return mod;
 338
 339                 if (mod->loaded || mod->mempool)
 340                         Mod_UnloadModel(mod);
 341
 342                 if (developer_loading.integer)
 343                         Con_Printf("loading model %s\n", mod->name);
 344
 345                 mod->used = true;
 346                 mod->crc = (unsigned int)-1;
 347                 mod->loaded = false;
 348
 349                 VectorClear(mod->normalmins);
 350                 VectorClear(mod->normalmaxs);
 351                 VectorClear(mod->yawmins);
 352                 VectorClear(mod->yawmaxs);
 353                 VectorClear(mod->rotatedmins);
 354                 VectorClear(mod->rotatedmaxs);
 355
 356                 mod->modeldatatypestring = "null";
 357                 mod->type = mod_null;
 358                 mod->Draw = R_Model_Null_Draw;
 359                 mod->numframes = 2;
 360                 mod->numskins = 1;
 361
 362                 // no fatal errors occurred, so this model is ready to use.
 363                 mod->loaded = true;
 364
 365                 return mod;
 366         }
 367
 368         crc = 0;
 369         buf = NULL;
 370
 371         // even if the model is loaded it still may need reloading...
 372
 373         // if it is not loaded or checkdisk is true we need to calculate the crc
 374         if (!mod->loaded || checkdisk)
 375         {
 376                 if (checkdisk && mod->loaded)
 377                         Con_DPrintf("checking model %s\n", mod->name);
 378                 buf = FS_LoadFile (mod->name, tempmempool, false, &filesize);
 379                 if (buf)
 380                 {
 381                         crc = CRC_Block((unsigned char *)buf, filesize);
 382                         // we need to reload the model if the crc does not match
 383                         if (mod->crc != crc)
 384                                 mod->loaded = false;
 385                 }
 386         }
 387
 388         // if the model is already loaded and checks passed, just return
 389         if (mod->loaded)
 390         {
 391                 if (buf)
 392                         Mem_Free(buf);
 393                 return mod;
 394         }
 395
 396         if (developer_loading.integer)
 397                 Con_Printf("loading model %s\n", mod->name);
 398
 399         SCR_PushLoadingScreen(true, mod->name, 1);
 400
 401         // LordHavoc: unload the existing model in this slot (if there is one)
 402         if (mod->loaded || mod->mempool)
 403                 Mod_UnloadModel(mod);
 404
 405         // load the model
 406         mod->used = true;
 407         mod->crc = crc;
 408         // errors can prevent the corresponding mod->loaded = true;
 409         mod->loaded = false;
 410
 411         // default model radius and bounding box (mainly for missing models)
 412         mod->radius = 16;
 413         VectorSet(mod->normalmins, -mod->radius, -mod->radius, -mod->radius);
 414         VectorSet(mod->normalmaxs, mod->radius, mod->radius, mod->radius);
 415         VectorSet(mod->yawmins, -mod->radius, -mod->radius, -mod->radius);
 416         VectorSet(mod->yawmaxs, mod->radius, mod->radius, mod->radius);
 417         VectorSet(mod->rotatedmins, -mod->radius, -mod->radius, -mod->radius);
 418         VectorSet(mod->rotatedmaxs, mod->radius, mod->radius, mod->radius);
 419
 420         if (!q3shaders_mem)
 421         {
 422                 // load q3 shaders for the first time, or after a level change
 423                 Mod_LoadQ3Shaders();
 424         }
 425
 426         if (buf)
 427         {
 428                 char *bufend = (char *)buf + filesize;
 429
 430                 // all models use memory, so allocate a memory pool
 431                 mod->mempool = Mem_AllocPool(mod->name, 0, NULL);
 432
 433                 num = LittleLong(*((int *)buf));
 434                 // call the apropriate loader
 435                 loadmodel = mod;
 436                      if (!strcasecmp(FS_FileExtension(mod->name), "obj")) Mod_OBJ_Load(mod, buf, bufend);
 437                 else if (!memcmp(buf, "IDPO", 4)) Mod_IDP0_Load(mod, buf, bufend);
 438                 else if (!memcmp(buf, "IDP2", 4)) Mod_IDP2_Load(mod, buf, bufend);
 439                 else if (!memcmp(buf, "IDP3", 4)) Mod_IDP3_Load(mod, buf, bufend);
 440                 else if (!memcmp(buf, "IDSP", 4)) Mod_IDSP_Load(mod, buf, bufend);
 441                 else if (!memcmp(buf, "IDS2", 4)) Mod_IDS2_Load(mod, buf, bufend);
 442                 else if (!memcmp(buf, "IBSP", 4)) Mod_IBSP_Load(mod, buf, bufend);
 443                 else if (!memcmp(buf, "ZYMOTICMODEL", 12)) Mod_ZYMOTICMODEL_Load(mod, buf, bufend);
 444                 else if (!memcmp(buf, "DARKPLACESMODEL", 16)) Mod_DARKPLACESMODEL_Load(mod, buf, bufend);
 445                 else if (!memcmp(buf, "ACTRHEAD", 8)) Mod_PSKMODEL_Load(mod, buf, bufend);
 446                 else if (strlen(mod->name) >= 4 && !strcmp(mod->name + strlen(mod->name) - 4, ".map")) Mod_MAP_Load(mod, buf, bufend);
 447                 else if (num == BSPVERSION || num == 30) Mod_Q1BSP_Load(mod, buf, bufend);
 448                 else Con_Printf("Mod_LoadModel: model \"%s\" is of unknown/unsupported type\n", mod->name);
 449                 Mem_Free(buf);
 450
 451                 buf = FS_LoadFile (va("%s.framegroups", mod->name), tempmempool, false, &filesize);
 452                 if(buf)
 453                 {
 454                         Mod_FrameGroupify(mod, (const char *)buf);
 455                         Mem_Free(buf);
 456                 }
 457
 458                 Mod_BuildVBOs();
 459         }
 460         else if (crash)
 461         {
 462                 // LordHavoc: Sys_Error was *ANNOYING*
 463                 Con_Printf ("Mod_LoadModel: %s not found\n", mod->name);
 464         }
 465
 466         // no fatal errors occurred, so this model is ready to use.
 467         mod->loaded = true;
 468
 469         SCR_PopLoadingScreen(false);
 470
 471         return mod;
 472 }
 473
 474 void Mod_ClearUsed(void)
 475 {
 476         int i;
 477         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 478         dp_model_t *mod;
 479         for (i = 0;i < nummodels;i++)
 480                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0])
 481                         mod->used = false;
 482 }
 483
 484 void Mod_PurgeUnused(void)
 485 {
 486         int i;
 487         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 488         dp_model_t *mod;
 489         for (i = 0;i < nummodels;i++)
 490         {
 491                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !mod->used)
 492                 {
 493                         Mod_UnloadModel(mod);
 494                         Mem_ExpandableArray_FreeRecord(&models, mod);
 495                 }
 496         }
 497 }
 498
 499 /*
 500 ==================
 501 Mod_FindName
 502
 503 ==================
 504 */
 505 dp_model_t *Mod_FindName(const char *name, const char *parentname)
 506 {
 507         int i;
 508         int nummodels;
 509         dp_model_t *mod;
 510
 511         if (!parentname)
 512                 parentname = "";
 513
 514         // if we're not dedicatd, the renderer calls will crash without video
 515         Host_StartVideo();
 516
 517         nummodels = Mem_ExpandableArray_IndexRange(&models);
 518
 519         if (!name[0])
 520                 Host_Error ("Mod_ForName: NULL name");
 521
 522         // search the currently loaded models
 523         for (i = 0;i < nummodels;i++)
 524         {
 525                 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))))
 526                 {
 527                         mod->used = true;
 528                         return mod;
 529                 }
 530         }
 531
 532         // no match found, create a new one
 533         mod = (dp_model_t *) Mem_ExpandableArray_AllocRecord(&models);
 534         strlcpy(mod->name, name, sizeof(mod->name));
 535         if (parentname[0])
 536                 mod->brush.parentmodel = Mod_FindName(parentname, NULL);
 537         else
 538                 mod->brush.parentmodel = NULL;
 539         mod->loaded = false;
 540         mod->used = true;
 541         return mod;
 542 }
 543
 544 /*
 545 ==================
 546 Mod_ForName
 547
 548 Loads in a model for the given name
 549 ==================
 550 */
 551 dp_model_t *Mod_ForName(const char *name, qboolean crash, qboolean checkdisk, const char *parentname)
 552 {
 553         dp_model_t *model;
 554         model = Mod_FindName(name, parentname);
 555         if (!model->loaded || checkdisk)
 556                 Mod_LoadModel(model, crash, checkdisk);
 557         return model;
 558 }
 559
 560 /*
 561 ==================
 562 Mod_Reload
 563
 564 Reloads all models if they have changed
 565 ==================
 566 */
 567 void Mod_Reload(void)
 568 {
 569         int i, count;
 570         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 571         dp_model_t *mod;
 572
 573         SCR_PushLoadingScreen(false, "Reloading models", 1.0);
 574         count = 0;
 575         for (i = 0;i < nummodels;i++)
 576                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 577                         ++count;
 578         for (i = 0;i < nummodels;i++)
 579                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 580                 {
 581                         SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
 582                         Mod_LoadModel(mod, true, true);
 583                         SCR_PopLoadingScreen(false);
 584                 }
 585         SCR_PopLoadingScreen(false);
 586 }
 587
 588 unsigned char *mod_base;
 589
 590
 591 //=============================================================================
 592
 593 /*
 594 ================
 595 Mod_Print
 596 ================
 597 */
 598 static void Mod_Print(void)
 599 {
 600         int i;
 601         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 602         dp_model_t *mod;
 603
 604         Con_Print("Loaded models:\n");
 605         for (i = 0;i < nummodels;i++)
 606         {
 607                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
 608                 {
 609                         if (mod->brush.numsubmodels)
 610                                 Con_Printf("%4iK %s (%i submodels)\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name, mod->brush.numsubmodels);
 611                         else
 612                                 Con_Printf("%4iK %s\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name);
 613                 }
 614         }
 615 }
 616
 617 /*
 618 ================
 619 Mod_Precache
 620 ================
 621 */
 622 static void Mod_Precache(void)
 623 {
 624         if (Cmd_Argc() == 2)
 625                 Mod_ForName(Cmd_Argv(1), false, true, Cmd_Argv(1)[0] == '*' ? cl.model_name[1] : NULL);
 626         else
 627                 Con_Print("usage: modelprecache <filename>\n");
 628 }
 629
 630 int Mod_BuildVertexRemapTableFromElements(int numelements, const int *elements, int numvertices, int *remapvertices)
 631 {
 632         int i, count;
 633         unsigned char *used;
 634         used = (unsigned char *)Mem_Alloc(tempmempool, numvertices);
 635         memset(used, 0, numvertices);
 636         for (i = 0;i < numelements;i++)
 637                 used[elements[i]] = 1;
 638         for (i = 0, count = 0;i < numvertices;i++)
 639                 remapvertices[i] = used[i] ? count++ : -1;
 640         Mem_Free(used);
 641         return count;
 642 }
 643
 644 #if 1
 645 // fast way, using an edge hash
 646 #define TRIANGLEEDGEHASH 8192
 647 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 648 {
 649         int i, j, p, e1, e2, *n, hashindex, count, match;
 650         const int *e;
 651         typedef struct edgehashentry_s
 652         {
 653                 struct edgehashentry_s *next;
 654                 int triangle;
 655                 int element[2];
 656         }
 657         edgehashentry_t;
 658         static edgehashentry_t *edgehash[TRIANGLEEDGEHASH];
 659         edgehashentry_t *edgehashentries, *hash;
 660         if (!numtriangles)
 661                 return;
 662         memset(edgehash, 0, sizeof(edgehash));
 663         // if there are too many triangles for the stack array, allocate larger buffer
 664         edgehashentries = (edgehashentry_t *)Mem_Alloc(tempmempool, numtriangles * 3 * sizeof(edgehashentry_t));
 665         // find neighboring triangles
 666         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 667         {
 668                 for (j = 0, p = 2;j < 3;p = j, j++)
 669                 {
 670                         e1 = e[p];
 671                         e2 = e[j];
 672                         // this hash index works for both forward and backward edges
 673                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 674                         hash = edgehashentries + i * 3 + j;
 675                         hash->next = edgehash[hashindex];
 676                         edgehash[hashindex] = hash;
 677                         hash->triangle = i;
 678                         hash->element[0] = e1;
 679                         hash->element[1] = e2;
 680                 }
 681         }
 682         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 683         {
 684                 for (j = 0, p = 2;j < 3;p = j, j++)
 685                 {
 686                         e1 = e[p];
 687                         e2 = e[j];
 688                         // this hash index works for both forward and backward edges
 689                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 690                         count = 0;
 691                         match = -1;
 692                         for (hash = edgehash[hashindex];hash;hash = hash->next)
 693                         {
 694                                 if (hash->element[0] == e2 && hash->element[1] == e1)
 695                                 {
 696                                         if (hash->triangle != i)
 697                                                 match = hash->triangle;
 698                                         count++;
 699                                 }
 700                                 else if ((hash->element[0] == e1 && hash->element[1] == e2))
 701                                         count++;
 702                         }
 703                         // detect edges shared by three triangles and make them seams
 704                         if (count > 2)
 705                                 match = -1;
 706                         n[p] = match;
 707                 }
 708
 709                 // also send a keepalive here (this can take a while too!)
 710                 CL_KeepaliveMessage(false);
 711         }
 712         // free the allocated buffer
 713         Mem_Free(edgehashentries);
 714 }
 715 #else
 716 // very slow but simple way
 717 static int Mod_FindTriangleWithEdge(const int *elements, int numtriangles, int start, int end, int ignore)
 718 {
 719         int i, match, count;
 720         count = 0;
 721         match = -1;
 722         for (i = 0;i < numtriangles;i++, elements += 3)
 723         {
 724                      if ((elements[0] == start && elements[1] == end)
 725                       || (elements[1] == start && elements[2] == end)
 726                       || (elements[2] == start && elements[0] == end))
 727                 {
 728                         if (i != ignore)
 729                                 match = i;
 730                         count++;
 731                 }
 732                 else if ((elements[1] == start && elements[0] == end)
 733                       || (elements[2] == start && elements[1] == end)
 734                       || (elements[0] == start && elements[2] == end))
 735                         count++;
 736         }
 737         // detect edges shared by three triangles and make them seams
 738         if (count > 2)
 739                 match = -1;
 740         return match;
 741 }
 742
 743 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 744 {
 745         int i, *n;
 746         const int *e;
 747         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 748         {
 749                 n[0] = Mod_FindTriangleWithEdge(elements, numtriangles, e[1], e[0], i);
 750                 n[1] = Mod_FindTriangleWithEdge(elements, numtriangles, e[2], e[1], i);
 751                 n[2] = Mod_FindTriangleWithEdge(elements, numtriangles, e[0], e[2], i);
 752         }
 753 }
 754 #endif
 755
 756 void Mod_ValidateElements(int *elements, int numtriangles, int firstvertex, int numverts, const char *filename, int fileline)
 757 {
 758         int i, warned = false, endvertex = firstvertex + numverts;
 759         for (i = 0;i < numtriangles * 3;i++)
 760         {
 761                 if (elements[i] < firstvertex || elements[i] >= endvertex)
 762                 {
 763                         if (!warned)
 764                         {
 765                                 warned = true;
 766                                 Con_Printf("Mod_ValidateElements: out of bounds elements detected at %s:%d\n", filename, fileline);
 767                         }
 768                         elements[i] = firstvertex;
 769                 }
 770         }
 771 }
 772
 773 // warning: this is an expensive function!
 774 void Mod_BuildNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const int *elements, float *normal3f, qboolean areaweighting)
 775 {
 776         int i, j;
 777         const int *element;
 778         float *vectorNormal;
 779         float areaNormal[3];
 780         // clear the vectors
 781         memset(normal3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 782         // process each vertex of each triangle and accumulate the results
 783         // use area-averaging, to make triangles with a big area have a bigger
 784         // weighting on the vertex normal than triangles with a small area
 785         // to do so, just add the 'normals' together (the bigger the area
 786         // the greater the length of the normal is
 787         element = elements;
 788         for (i = 0; i < numtriangles; i++, element += 3)
 789         {
 790                 TriangleNormal(
 791                         vertex3f + element[0] * 3,
 792                         vertex3f + element[1] * 3,
 793                         vertex3f + element[2] * 3,
 794                         areaNormal
 795                         );
 796
 797                 if (!areaweighting)
 798                         VectorNormalize(areaNormal);
 799
 800                 for (j = 0;j < 3;j++)
 801                 {
 802                         vectorNormal = normal3f + element[j] * 3;
 803                         vectorNormal[0] += areaNormal[0];
 804                         vectorNormal[1] += areaNormal[1];
 805                         vectorNormal[2] += areaNormal[2];
 806                 }
 807         }
 808         // and just normalize the accumulated vertex normal in the end
 809         vectorNormal = normal3f + 3 * firstvertex;
 810         for (i = 0; i < numvertices; i++, vectorNormal += 3)
 811                 VectorNormalize(vectorNormal);
 812 }
 813
 814 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)
 815 {
 816         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 817         // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 818         // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 819
 820         // 6 multiply, 9 subtract
 821         VectorSubtract(v1, v0, v10);
 822         VectorSubtract(v2, v0, v20);
 823         normal3f[0] = v20[1] * v10[2] - v20[2] * v10[1];
 824         normal3f[1] = v20[2] * v10[0] - v20[0] * v10[2];
 825         normal3f[2] = v20[0] * v10[1] - v20[1] * v10[0];
 826         // 12 multiply, 10 subtract
 827         tc10[1] = tc1[1] - tc0[1];
 828         tc20[1] = tc2[1] - tc0[1];
 829         svector3f[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 830         svector3f[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 831         svector3f[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 832         tc10[0] = tc1[0] - tc0[0];
 833         tc20[0] = tc2[0] - tc0[0];
 834         tvector3f[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 835         tvector3f[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 836         tvector3f[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 837         // 12 multiply, 4 add, 6 subtract
 838         f = DotProduct(svector3f, normal3f);
 839         svector3f[0] -= f * normal3f[0];
 840         svector3f[1] -= f * normal3f[1];
 841         svector3f[2] -= f * normal3f[2];
 842         f = DotProduct(tvector3f, normal3f);
 843         tvector3f[0] -= f * normal3f[0];
 844         tvector3f[1] -= f * normal3f[1];
 845         tvector3f[2] -= f * normal3f[2];
 846         // if texture is mapped the wrong way (counterclockwise), the tangents
 847         // have to be flipped, this is detected by calculating a normal from the
 848         // two tangents, and seeing if it is opposite the surface normal
 849         // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 850         CrossProduct(tvector3f, svector3f, tangentcross);
 851         if (DotProduct(tangentcross, normal3f) < 0)
 852         {
 853                 VectorNegate(svector3f, svector3f);
 854                 VectorNegate(tvector3f, tvector3f);
 855         }
 856 }
 857
 858 // warning: this is a very expensive function!
 859 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)
 860 {
 861         int i, tnum;
 862         float sdir[3], tdir[3], normal[3], *sv, *tv;
 863         const float *v0, *v1, *v2, *tc0, *tc1, *tc2, *n;
 864         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 865         const int *e;
 866         // clear the vectors
 867         memset(svector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 868         memset(tvector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 869         // process each vertex of each triangle and accumulate the results
 870         for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
 871         {
 872                 v0 = vertex3f + e[0] * 3;
 873                 v1 = vertex3f + e[1] * 3;
 874                 v2 = vertex3f + e[2] * 3;
 875                 tc0 = texcoord2f + e[0] * 2;
 876                 tc1 = texcoord2f + e[1] * 2;
 877                 tc2 = texcoord2f + e[2] * 2;
 878
 879                 // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 880                 // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 881
 882                 // calculate the edge directions and surface normal
 883                 // 6 multiply, 9 subtract
 884                 VectorSubtract(v1, v0, v10);
 885                 VectorSubtract(v2, v0, v20);
 886                 normal[0] = v20[1] * v10[2] - v20[2] * v10[1];
 887                 normal[1] = v20[2] * v10[0] - v20[0] * v10[2];
 888                 normal[2] = v20[0] * v10[1] - v20[1] * v10[0];
 889
 890                 // calculate the tangents
 891                 // 12 multiply, 10 subtract
 892                 tc10[1] = tc1[1] - tc0[1];
 893                 tc20[1] = tc2[1] - tc0[1];
 894                 sdir[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 895                 sdir[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 896                 sdir[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 897                 tc10[0] = tc1[0] - tc0[0];
 898                 tc20[0] = tc2[0] - tc0[0];
 899                 tdir[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 900                 tdir[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 901                 tdir[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 902
 903                 // if texture is mapped the wrong way (counterclockwise), the tangents
 904                 // have to be flipped, this is detected by calculating a normal from the
 905                 // two tangents, and seeing if it is opposite the surface normal
 906                 // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 907                 CrossProduct(tdir, sdir, tangentcross);
 908                 if (DotProduct(tangentcross, normal) < 0)
 909                 {
 910                         VectorNegate(sdir, sdir);
 911                         VectorNegate(tdir, tdir);
 912                 }
 913
 914                 if (!areaweighting)
 915                 {
 916                         VectorNormalize(sdir);
 917                         VectorNormalize(tdir);
 918                 }
 919                 for (i = 0;i < 3;i++)
 920                 {
 921                         VectorAdd(svector3f + e[i]*3, sdir, svector3f + e[i]*3);
 922                         VectorAdd(tvector3f + e[i]*3, tdir, tvector3f + e[i]*3);
 923                 }
 924         }
 925         // make the tangents completely perpendicular to the surface normal, and
 926         // then normalize them
 927         // 16 assignments, 2 divide, 2 sqrt, 2 negates, 14 adds, 24 multiplies
 928         for (i = 0, sv = svector3f + 3 * firstvertex, tv = tvector3f + 3 * firstvertex, n = normal3f + 3 * firstvertex;i < numvertices;i++, sv += 3, tv += 3, n += 3)
 929         {
 930                 f = -DotProduct(sv, n);
 931                 VectorMA(sv, f, n, sv);
 932                 VectorNormalize(sv);
 933                 f = -DotProduct(tv, n);
 934                 VectorMA(tv, f, n, tv);
 935                 VectorNormalize(tv);
 936         }
 937 }
 938
 939 void Mod_AllocSurfMesh(mempool_t *mempool, int numvertices, int numtriangles, qboolean lightmapoffsets, qboolean vertexcolors, qboolean neighbors)
 940 {
 941         unsigned char *data;
 942         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));
 943         loadmodel->surfmesh.num_vertices = numvertices;
 944         loadmodel->surfmesh.num_triangles = numtriangles;
 945         if (loadmodel->surfmesh.num_vertices)
 946         {
 947                 loadmodel->surfmesh.data_vertex3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 948                 loadmodel->surfmesh.data_svector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 949                 loadmodel->surfmesh.data_tvector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 950                 loadmodel->surfmesh.data_normal3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 951                 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 952                 loadmodel->surfmesh.data_texcoordlightmap2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 953                 if (vertexcolors)
 954                         loadmodel->surfmesh.data_lightmapcolor4f = (float *)data, data += sizeof(float[4]) * loadmodel->surfmesh.num_vertices;
 955                 if (lightmapoffsets)
 956                         loadmodel->surfmesh.data_lightmapoffsets = (int *)data, data += sizeof(int) * loadmodel->surfmesh.num_vertices;
 957         }
 958         if (loadmodel->surfmesh.num_triangles)
 959         {
 960                 loadmodel->surfmesh.data_element3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
 961                 if (neighbors)
 962                         loadmodel->surfmesh.data_neighbor3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
 963                 if (loadmodel->surfmesh.num_vertices <= 65536)
 964                         loadmodel->surfmesh.data_element3s = (unsigned short *)data, data += sizeof(unsigned short[3]) * loadmodel->surfmesh.num_triangles;
 965         }
 966 }
 967
 968 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)
 969 {
 970         shadowmesh_t *newmesh;
 971         unsigned char *data;
 972         int size;
 973         size = sizeof(shadowmesh_t);
 974         size += maxverts * sizeof(float[3]);
 975         if (light)
 976                 size += maxverts * sizeof(float[11]);
 977         size += maxtriangles * sizeof(int[3]);
 978         if (maxverts <= 65536)
 979                 size += maxtriangles * sizeof(unsigned short[3]);
 980         if (neighbors)
 981                 size += maxtriangles * sizeof(int[3]);
 982         if (expandable)
 983                 size += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *) + maxverts * sizeof(shadowmeshvertexhash_t);
 984         data = (unsigned char *)Mem_Alloc(mempool, size);
 985         newmesh = (shadowmesh_t *)data;data += sizeof(*newmesh);
 986         newmesh->map_diffuse = map_diffuse;
 987         newmesh->map_specular = map_specular;
 988         newmesh->map_normal = map_normal;
 989         newmesh->maxverts = maxverts;
 990         newmesh->maxtriangles = maxtriangles;
 991         newmesh->numverts = 0;
 992         newmesh->numtriangles = 0;
 993         memset(newmesh->sideoffsets, 0, sizeof(newmesh->sideoffsets));
 994         memset(newmesh->sidetotals, 0, sizeof(newmesh->sidetotals));
 995
 996         newmesh->vertex3f = (float *)data;data += maxverts * sizeof(float[3]);
 997         if (light)
 998         {
 999                 newmesh->svector3f = (float *)data;data += maxverts * sizeof(float[3]);
1000                 newmesh->tvector3f = (float *)data;data += maxverts * sizeof(float[3]);
1001                 newmesh->normal3f = (float *)data;data += maxverts * sizeof(float[3]);
1002                 newmesh->texcoord2f = (float *)data;data += maxverts * sizeof(float[2]);
1003         }
1004         newmesh->element3i = (int *)data;data += maxtriangles * sizeof(int[3]);
1005         if (neighbors)
1006         {
1007                 newmesh->neighbor3i = (int *)data;data += maxtriangles * sizeof(int[3]);
1008         }
1009         if (expandable)
1010         {
1011                 newmesh->vertexhashtable = (shadowmeshvertexhash_t **)data;data += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *);
1012                 newmesh->vertexhashentries = (shadowmeshvertexhash_t *)data;data += maxverts * sizeof(shadowmeshvertexhash_t);
1013         }
1014         if (maxverts <= 65536)
1015                 newmesh->element3s = (unsigned short *)data;data += maxtriangles * sizeof(unsigned short[3]);
1016         return newmesh;
1017 }
1018
1019 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh, int light, int neighbors)
1020 {
1021         shadowmesh_t *newmesh;
1022         newmesh = Mod_ShadowMesh_Alloc(mempool, oldmesh->numverts, oldmesh->numtriangles, oldmesh->map_diffuse, oldmesh->map_specular, oldmesh->map_normal, light, neighbors, false);
1023         newmesh->numverts = oldmesh->numverts;
1024         newmesh->numtriangles = oldmesh->numtriangles;
1025         memcpy(newmesh->sideoffsets, oldmesh->sideoffsets, sizeof(oldmesh->sideoffsets));
1026         memcpy(newmesh->sidetotals, oldmesh->sidetotals, sizeof(oldmesh->sidetotals));
1027
1028         memcpy(newmesh->vertex3f, oldmesh->vertex3f, oldmesh->numverts * sizeof(float[3]));
1029         if (newmesh->svector3f && oldmesh->svector3f)
1030         {
1031                 memcpy(newmesh->svector3f, oldmesh->svector3f, oldmesh->numverts * sizeof(float[3]));
1032                 memcpy(newmesh->tvector3f, oldmesh->tvector3f, oldmesh->numverts * sizeof(float[3]));
1033                 memcpy(newmesh->normal3f, oldmesh->normal3f, oldmesh->numverts * sizeof(float[3]));
1034                 memcpy(newmesh->texcoord2f, oldmesh->texcoord2f, oldmesh->numverts * sizeof(float[2]));
1035         }
1036         memcpy(newmesh->element3i, oldmesh->element3i, oldmesh->numtriangles * sizeof(int[3]));
1037         if (newmesh->neighbor3i && oldmesh->neighbor3i)
1038                 memcpy(newmesh->neighbor3i, oldmesh->neighbor3i, oldmesh->numtriangles * sizeof(int[3]));
1039         return newmesh;
1040 }
1041
1042 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *vertex14f)
1043 {
1044         int hashindex, vnum;
1045         shadowmeshvertexhash_t *hash;
1046         // this uses prime numbers intentionally
1047         hashindex = (unsigned int) (vertex14f[0] * 2003 + vertex14f[1] * 4001 + vertex14f[2] * 7919) % SHADOWMESHVERTEXHASH;
1048         for (hash = mesh->vertexhashtable[hashindex];hash;hash = hash->next)
1049         {
1050                 vnum = (hash - mesh->vertexhashentries);
1051                 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]))
1052                  && (mesh->svector3f == NULL || (mesh->svector3f[vnum * 3 + 0] == vertex14f[3] && mesh->svector3f[vnum * 3 + 1] == vertex14f[4] && mesh->svector3f[vnum * 3 + 2] == vertex14f[5]))
1053                  && (mesh->tvector3f == NULL || (mesh->tvector3f[vnum * 3 + 0] == vertex14f[6] && mesh->tvector3f[vnum * 3 + 1] == vertex14f[7] && mesh->tvector3f[vnum * 3 + 2] == vertex14f[8]))
1054                  && (mesh->normal3f == NULL || (mesh->normal3f[vnum * 3 + 0] == vertex14f[9] && mesh->normal3f[vnum * 3 + 1] == vertex14f[10] && mesh->normal3f[vnum * 3 + 2] == vertex14f[11]))
1055                  && (mesh->texcoord2f == NULL || (mesh->texcoord2f[vnum * 2 + 0] == vertex14f[12] && mesh->texcoord2f[vnum * 2 + 1] == vertex14f[13])))
1056                         return hash - mesh->vertexhashentries;
1057         }
1058         vnum = mesh->numverts++;
1059         hash = mesh->vertexhashentries + vnum;
1060         hash->next = mesh->vertexhashtable[hashindex];
1061         mesh->vertexhashtable[hashindex] = hash;
1062         if (mesh->vertex3f) {mesh->vertex3f[vnum * 3 + 0] = vertex14f[0];mesh->vertex3f[vnum * 3 + 1] = vertex14f[1];mesh->vertex3f[vnum * 3 + 2] = vertex14f[2];}
1063         if (mesh->svector3f) {mesh->svector3f[vnum * 3 + 0] = vertex14f[3];mesh->svector3f[vnum * 3 + 1] = vertex14f[4];mesh->svector3f[vnum * 3 + 2] = vertex14f[5];}
1064         if (mesh->tvector3f) {mesh->tvector3f[vnum * 3 + 0] = vertex14f[6];mesh->tvector3f[vnum * 3 + 1] = vertex14f[7];mesh->tvector3f[vnum * 3 + 2] = vertex14f[8];}
1065         if (mesh->normal3f) {mesh->normal3f[vnum * 3 + 0] = vertex14f[9];mesh->normal3f[vnum * 3 + 1] = vertex14f[10];mesh->normal3f[vnum * 3 + 2] = vertex14f[11];}
1066         if (mesh->texcoord2f) {mesh->texcoord2f[vnum * 2 + 0] = vertex14f[12];mesh->texcoord2f[vnum * 2 + 1] = vertex14f[13];}
1067         return vnum;
1068 }
1069
1070 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex14f)
1071 {
1072         if (mesh->numtriangles == 0)
1073         {
1074                 // set the properties on this empty mesh to be more favorable...
1075                 // (note: this case only occurs for the first triangle added to a new mesh chain)
1076                 mesh->map_diffuse = map_diffuse;
1077                 mesh->map_specular = map_specular;
1078                 mesh->map_normal = map_normal;
1079         }
1080         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)
1081         {
1082                 if (mesh->next == NULL)
1083                         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);
1084                 mesh = mesh->next;
1085         }
1086         mesh->element3i[mesh->numtriangles * 3 + 0] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 0);
1087         mesh->element3i[mesh->numtriangles * 3 + 1] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 1);
1088         mesh->element3i[mesh->numtriangles * 3 + 2] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 2);
1089         mesh->numtriangles++;
1090 }
1091
1092 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)
1093 {
1094         int i, j, e;
1095         float vbuf[3*14], *v;
1096         memset(vbuf, 0, sizeof(vbuf));
1097         for (i = 0;i < numtris;i++)
1098         {
1099                 for (j = 0, v = vbuf;j < 3;j++, v += 14)
1100                 {
1101                         e = *element3i++;
1102                         if (vertex3f)
1103                         {
1104                                 v[0] = vertex3f[e * 3 + 0];
1105                                 v[1] = vertex3f[e * 3 + 1];
1106                                 v[2] = vertex3f[e * 3 + 2];
1107                         }
1108                         if (svector3f)
1109                         {
1110                                 v[3] = svector3f[e * 3 + 0];
1111                                 v[4] = svector3f[e * 3 + 1];
1112                                 v[5] = svector3f[e * 3 + 2];
1113                         }
1114                         if (tvector3f)
1115                         {
1116                                 v[6] = tvector3f[e * 3 + 0];
1117                                 v[7] = tvector3f[e * 3 + 1];
1118                                 v[8] = tvector3f[e * 3 + 2];
1119                         }
1120                         if (normal3f)
1121                         {
1122                                 v[9] = normal3f[e * 3 + 0];
1123                                 v[10] = normal3f[e * 3 + 1];
1124                                 v[11] = normal3f[e * 3 + 2];
1125                         }
1126                         if (texcoord2f)
1127                         {
1128                                 v[12] = texcoord2f[e * 2 + 0];
1129                                 v[13] = texcoord2f[e * 2 + 1];
1130                         }
1131                 }
1132                 Mod_ShadowMesh_AddTriangle(mempool, mesh, map_diffuse, map_specular, map_normal, vbuf);
1133         }
1134
1135         // the triangle calculation can take a while, so let's do a keepalive here
1136         CL_KeepaliveMessage(false);
1137 }
1138
1139 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)
1140 {
1141         // the preparation before shadow mesh initialization can take a while, so let's do a keepalive here
1142         CL_KeepaliveMessage(false);
1143
1144         return Mod_ShadowMesh_Alloc(mempool, maxverts, maxtriangles, map_diffuse, map_specular, map_normal, light, neighbors, expandable);
1145 }
1146
1147 static void Mod_ShadowMesh_CreateVBOs(shadowmesh_t *mesh)
1148 {
1149         if (!vid.support.arb_vertex_buffer_object)
1150                 return;
1151
1152         // element buffer is easy because it's just one array
1153         if (mesh->numtriangles)
1154         {
1155                 if (mesh->element3s)
1156                         mesh->ebo3s = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, mesh->element3s, mesh->numtriangles * sizeof(unsigned short[3]), "shadowmesh");
1157                 else
1158                         mesh->ebo3i = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, mesh->element3i, mesh->numtriangles * sizeof(unsigned int[3]), "shadowmesh");
1159         }
1160
1161         // vertex buffer is several arrays and we put them in the same buffer
1162         //
1163         // is this wise?  the texcoordtexture2f array is used with dynamic
1164         // vertex/svector/tvector/normal when rendering animated models, on the
1165         // other hand animated models don't use a lot of vertices anyway...
1166         if (mesh->numverts)
1167         {
1168                 size_t size;
1169                 unsigned char *mem;
1170                 size = 0;
1171                 mesh->vbooffset_vertex3f           = size;if (mesh->vertex3f          ) size += mesh->numverts * sizeof(float[3]);
1172                 mesh->vbooffset_svector3f          = size;if (mesh->svector3f         ) size += mesh->numverts * sizeof(float[3]);
1173                 mesh->vbooffset_tvector3f          = size;if (mesh->tvector3f         ) size += mesh->numverts * sizeof(float[3]);
1174                 mesh->vbooffset_normal3f           = size;if (mesh->normal3f          ) size += mesh->numverts * sizeof(float[3]);
1175                 mesh->vbooffset_texcoord2f         = size;if (mesh->texcoord2f        ) size += mesh->numverts * sizeof(float[2]);
1176                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
1177                 if (mesh->vertex3f          ) memcpy(mem + mesh->vbooffset_vertex3f          , mesh->vertex3f          , mesh->numverts * sizeof(float[3]));
1178                 if (mesh->svector3f         ) memcpy(mem + mesh->vbooffset_svector3f         , mesh->svector3f         , mesh->numverts * sizeof(float[3]));
1179                 if (mesh->tvector3f         ) memcpy(mem + mesh->vbooffset_tvector3f         , mesh->tvector3f         , mesh->numverts * sizeof(float[3]));
1180                 if (mesh->normal3f          ) memcpy(mem + mesh->vbooffset_normal3f          , mesh->normal3f          , mesh->numverts * sizeof(float[3]));
1181                 if (mesh->texcoord2f        ) memcpy(mem + mesh->vbooffset_texcoord2f        , mesh->texcoord2f        , mesh->numverts * sizeof(float[2]));
1182                 mesh->vbo = R_Mesh_CreateStaticBufferObject(GL_ARRAY_BUFFER_ARB, mem, size, "shadowmesh");
1183                 Mem_Free(mem);
1184         }
1185 }
1186
1187 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh, qboolean light, qboolean neighbors, qboolean createvbo)
1188 {
1189         shadowmesh_t *mesh, *newmesh, *nextmesh;
1190         // reallocate meshs to conserve space
1191         for (mesh = firstmesh, firstmesh = NULL;mesh;mesh = nextmesh)
1192         {
1193                 nextmesh = mesh->next;
1194                 if (mesh->numverts >= 3 && mesh->numtriangles >= 1)
1195                 {
1196                         newmesh = Mod_ShadowMesh_ReAlloc(mempool, mesh, light, neighbors);
1197                         newmesh->next = firstmesh;
1198                         firstmesh = newmesh;
1199                         if (newmesh->element3s)
1200                         {
1201                                 int i;
1202                                 for (i = 0;i < newmesh->numtriangles*3;i++)
1203                                         newmesh->element3s[i] = newmesh->element3i[i];
1204                         }
1205                         if (createvbo)
1206                                 Mod_ShadowMesh_CreateVBOs(newmesh);
1207                 }
1208                 Mem_Free(mesh);
1209         }
1210
1211         // this can take a while, so let's do a keepalive here
1212         CL_KeepaliveMessage(false);
1213
1214         return firstmesh;
1215 }
1216
1217 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius)
1218 {
1219         int i;
1220         shadowmesh_t *mesh;
1221         vec3_t nmins, nmaxs, ncenter, temp;
1222         float nradius2, dist2, *v;
1223         VectorClear(nmins);
1224         VectorClear(nmaxs);
1225         // calculate bbox
1226         for (mesh = firstmesh;mesh;mesh = mesh->next)
1227         {
1228                 if (mesh == firstmesh)
1229                 {
1230                         VectorCopy(mesh->vertex3f, nmins);
1231                         VectorCopy(mesh->vertex3f, nmaxs);
1232                 }
1233                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1234                 {
1235                         if (nmins[0] > v[0]) nmins[0] = v[0];if (nmaxs[0] < v[0]) nmaxs[0] = v[0];
1236                         if (nmins[1] > v[1]) nmins[1] = v[1];if (nmaxs[1] < v[1]) nmaxs[1] = v[1];
1237                         if (nmins[2] > v[2]) nmins[2] = v[2];if (nmaxs[2] < v[2]) nmaxs[2] = v[2];
1238                 }
1239         }
1240         // calculate center and radius
1241         ncenter[0] = (nmins[0] + nmaxs[0]) * 0.5f;
1242         ncenter[1] = (nmins[1] + nmaxs[1]) * 0.5f;
1243         ncenter[2] = (nmins[2] + nmaxs[2]) * 0.5f;
1244         nradius2 = 0;
1245         for (mesh = firstmesh;mesh;mesh = mesh->next)
1246         {
1247                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1248                 {
1249                         VectorSubtract(v, ncenter, temp);
1250                         dist2 = DotProduct(temp, temp);
1251                         if (nradius2 < dist2)
1252                                 nradius2 = dist2;
1253                 }
1254         }
1255         // return data
1256         if (mins)
1257                 VectorCopy(nmins, mins);
1258         if (maxs)
1259                 VectorCopy(nmaxs, maxs);
1260         if (center)
1261                 VectorCopy(ncenter, center);
1262         if (radius)
1263                 *radius = sqrt(nradius2);
1264 }
1265
1266 void Mod_ShadowMesh_Free(shadowmesh_t *mesh)
1267 {
1268         shadowmesh_t *nextmesh;
1269         for (;mesh;mesh = nextmesh)
1270         {
1271                 if (mesh->ebo3i)
1272                         R_Mesh_DestroyBufferObject(mesh->ebo3i);
1273                 if (mesh->ebo3s)
1274                         R_Mesh_DestroyBufferObject(mesh->ebo3s);
1275                 if (mesh->vbo)
1276                         R_Mesh_DestroyBufferObject(mesh->vbo);
1277                 nextmesh = mesh->next;
1278                 Mem_Free(mesh);
1279         }
1280 }
1281
1282 void Mod_CreateCollisionMesh(dp_model_t *mod)
1283 {
1284         int k;
1285         int numcollisionmeshtriangles;
1286         const msurface_t *surface;
1287         mempool_t *mempool = mod->mempool;
1288         if (!mempool && mod->brush.parentmodel)
1289                 mempool = mod->brush.parentmodel->mempool;
1290         // make a single combined collision mesh for physics engine use
1291         // TODO rewrite this to use the collision brushes as source, to fix issues with e.g. common/caulk which creates no drawsurface
1292         numcollisionmeshtriangles = 0;
1293         for (k = 0;k < mod->nummodelsurfaces;k++)
1294         {
1295                 surface = mod->data_surfaces + mod->firstmodelsurface + k;
1296                 if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1297                         continue;
1298                 numcollisionmeshtriangles += surface->num_triangles;
1299         }
1300         mod->brush.collisionmesh = Mod_ShadowMesh_Begin(mempool, numcollisionmeshtriangles * 3, numcollisionmeshtriangles, NULL, NULL, NULL, false, false, true);
1301         for (k = 0;k < mod->nummodelsurfaces;k++)
1302         {
1303                 surface = mod->data_surfaces + mod->firstmodelsurface + k;
1304                 if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1305                         continue;
1306                 Mod_ShadowMesh_AddMesh(mempool, mod->brush.collisionmesh, NULL, NULL, NULL, mod->surfmesh.data_vertex3f, NULL, NULL, NULL, NULL, surface->num_triangles, (mod->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
1307         }
1308         mod->brush.collisionmesh = Mod_ShadowMesh_Finish(mempool, mod->brush.collisionmesh, false, true, false);
1309 }
1310
1311 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)
1312 {
1313         float v[3], tc[3];
1314         v[0] = ix;
1315         v[1] = iy;
1316         if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
1317                 v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
1318         else
1319                 v[2] = 0;
1320         Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
1321         Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
1322         texcoord2f[0] = tc[0];
1323         texcoord2f[1] = tc[1];
1324 }
1325
1326 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)
1327 {
1328         float vup[3], vdown[3], vleft[3], vright[3];
1329         float tcup[3], tcdown[3], tcleft[3], tcright[3];
1330         float sv[3], tv[3], nl[3];
1331         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
1332         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
1333         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
1334         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
1335         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
1336         Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
1337         Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
1338         VectorAdd(svector3f, sv, svector3f);
1339         VectorAdd(tvector3f, tv, tvector3f);
1340         VectorAdd(normal3f, nl, normal3f);
1341         Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
1342         VectorAdd(svector3f, sv, svector3f);
1343         VectorAdd(tvector3f, tv, tvector3f);
1344         VectorAdd(normal3f, nl, normal3f);
1345         Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
1346         VectorAdd(svector3f, sv, svector3f);
1347         VectorAdd(tvector3f, tv, tvector3f);
1348         VectorAdd(normal3f, nl, normal3f);
1349 }
1350
1351 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)
1352 {
1353         int x, y, ix, iy, *e;
1354         e = element3i;
1355         for (y = 0;y < height;y++)
1356         {
1357                 for (x = 0;x < width;x++)
1358                 {
1359                         e[0] = (y + 1) * (width + 1) + (x + 0);
1360                         e[1] = (y + 0) * (width + 1) + (x + 0);
1361                         e[2] = (y + 1) * (width + 1) + (x + 1);
1362                         e[3] = (y + 0) * (width + 1) + (x + 0);
1363                         e[4] = (y + 0) * (width + 1) + (x + 1);
1364                         e[5] = (y + 1) * (width + 1) + (x + 1);
1365                         e += 6;
1366                 }
1367         }
1368         Mod_BuildTriangleNeighbors(neighbor3i, element3i, width*height*2);
1369         for (y = 0, iy = y1;y < height + 1;y++, iy++)
1370                 for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
1371                         Mod_GetTerrainVertexFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
1372 }
1373
1374 #if 0
1375 void Mod_Terrain_SurfaceRecurseChunk(dp_model_t *model, int stepsize, int x, int y)
1376 {
1377         float mins[3];
1378         float maxs[3];
1379         float chunkwidth = min(stepsize, model->terrain.width - 1 - x);
1380         float chunkheight = min(stepsize, model->terrain.height - 1 - y);
1381         float viewvector[3];
1382         unsigned int firstvertex;
1383         unsigned int *e;
1384         float *v;
1385         if (chunkwidth < 2 || chunkheight < 2)
1386                 return;
1387         VectorSet(mins, model->terrain.mins[0] +  x    * stepsize * model->terrain.scale[0], model->terrain.mins[1] +  y    * stepsize * model->terrain.scale[1], model->terrain.mins[2]);
1388         VectorSet(maxs, model->terrain.mins[0] + (x+1) * stepsize * model->terrain.scale[0], model->terrain.mins[1] + (y+1) * stepsize * model->terrain.scale[1], model->terrain.maxs[2]);
1389         viewvector[0] = bound(mins[0], localvieworigin, maxs[0]) - model->terrain.vieworigin[0];
1390         viewvector[1] = bound(mins[1], localvieworigin, maxs[1]) - model->terrain.vieworigin[1];
1391         viewvector[2] = bound(mins[2], localvieworigin, maxs[2]) - model->terrain.vieworigin[2];
1392         if (stepsize > 1 && VectorLength(viewvector) < stepsize*model->terrain.scale[0]*r_terrain_lodscale.value)
1393         {
1394                 // too close for this stepsize, emit as 4 chunks instead
1395                 stepsize /= 2;
1396                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y);
1397                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y);
1398                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y+stepsize);
1399                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y+stepsize);
1400                 return;
1401         }
1402         // emit the geometry at stepsize into our vertex buffer / index buffer
1403         // we add two columns and two rows for skirt
1404         outwidth = chunkwidth+2;
1405         outheight = chunkheight+2;
1406         outwidth2 = outwidth-1;
1407         outheight2 = outheight-1;
1408         outwidth3 = outwidth+1;
1409         outheight3 = outheight+1;
1410         firstvertex = numvertices;
1411         e = model->terrain.element3i + numtriangles;
1412         numtriangles += chunkwidth*chunkheight*2+chunkwidth*2*2+chunkheight*2*2;
1413         v = model->terrain.vertex3f + numvertices;
1414         numvertices += (chunkwidth+1)*(chunkheight+1)+(chunkwidth+1)*2+(chunkheight+1)*2;
1415         // emit the triangles (note: the skirt is treated as two extra rows and two extra columns)
1416         for (ty = 0;ty < outheight;ty++)
1417         {
1418                 for (tx = 0;tx < outwidth;tx++)
1419                 {
1420                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1421                         *e++ = firstvertex + (ty  )*outwidth3+(tx+1);
1422                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1423                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1424                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1425                         *e++ = firstvertex + (ty+1)*outwidth3+(tx  );
1426                 }
1427         }
1428         // TODO: emit surface vertices (x+tx*stepsize, y+ty*stepsize)
1429         for (ty = 0;ty <= outheight;ty++)
1430         {
1431                 skirtrow = ty == 0 || ty == outheight;
1432                 ry = y+bound(1, ty, outheight)*stepsize;
1433                 for (tx = 0;tx <= outwidth;tx++)
1434                 {
1435                         skirt = skirtrow || tx == 0 || tx == outwidth;
1436                         rx = x+bound(1, tx, outwidth)*stepsize;
1437                         v[0] = rx*scale[0];
1438                         v[1] = ry*scale[1];
1439                         v[2] = heightmap[ry*terrainwidth+rx]*scale[2];
1440                         v += 3;
1441                 }
1442         }
1443         // TODO: emit skirt vertices
1444 }
1445
1446 void Mod_Terrain_UpdateSurfacesForViewOrigin(dp_model_t *model)
1447 {
1448         for (y = 0;y < model->terrain.size[1];y += model->terrain.
1449         Mod_Terrain_SurfaceRecurseChunk(model, model->terrain.maxstepsize, x, y);
1450         Mod_Terrain_BuildChunk(model,
1451 }
1452 #endif
1453
1454 q3wavefunc_t Mod_LoadQ3Shaders_EnumerateWaveFunc(const char *s)
1455 {
1456         if (!strcasecmp(s, "sin"))             return Q3WAVEFUNC_SIN;
1457         if (!strcasecmp(s, "square"))          return Q3WAVEFUNC_SQUARE;
1458         if (!strcasecmp(s, "triangle"))        return Q3WAVEFUNC_TRIANGLE;
1459         if (!strcasecmp(s, "sawtooth"))        return Q3WAVEFUNC_SAWTOOTH;
1460         if (!strcasecmp(s, "inversesawtooth")) return Q3WAVEFUNC_INVERSESAWTOOTH;
1461         if (!strcasecmp(s, "noise"))           return Q3WAVEFUNC_NOISE;
1462         Con_DPrintf("Mod_LoadQ3Shaders: unknown wavefunc %s\n", s);
1463         return Q3WAVEFUNC_NONE;
1464 }
1465
1466 void Mod_FreeQ3Shaders(void)
1467 {
1468         Mem_FreePool(&q3shaders_mem);
1469 }
1470
1471 static void Q3Shader_AddToHash (q3shaderinfo_t* shader)
1472 {
1473         unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)shader->name, strlen (shader->name));
1474         q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1475         q3shader_hash_entry_t* lastEntry = NULL;
1476         while (entry != NULL)
1477         {
1478                 if (strcasecmp (entry->shader.name, shader->name) == 0)
1479                 {
1480                         unsigned char *start, *end, *start2;
1481                         start = (unsigned char *) (&shader->Q3SHADERINFO_COMPARE_START);
1482                         end = ((unsigned char *) (&shader->Q3SHADERINFO_COMPARE_END)) + sizeof(shader->Q3SHADERINFO_COMPARE_END);
1483                         start2 = (unsigned char *) (&entry->shader.Q3SHADERINFO_COMPARE_START);
1484                         if(memcmp(start, start2, end - start))
1485                                 Con_DPrintf("Shader '%s' already defined, ignoring mismatching redeclaration\n", shader->name);
1486                         else
1487                                 Con_DPrintf("Shader '%s' already defined\n", shader->name);
1488                         return;
1489                 }
1490                 lastEntry = entry;
1491                 entry = entry->chain;
1492         }
1493         if (entry == NULL)
1494         {
1495                 if (lastEntry->shader.name[0] != 0)
1496                 {
1497                         /* Add to chain */
1498                         q3shader_hash_entry_t* newEntry = (q3shader_hash_entry_t*)
1499                           Mem_ExpandableArray_AllocRecord (&q3shader_data->hash_entries);
1500
1501                         while (lastEntry->chain != NULL) lastEntry = lastEntry->chain;
1502                         lastEntry->chain = newEntry;
1503                         newEntry->chain = NULL;
1504                         lastEntry = newEntry;
1505                 }
1506                 /* else: head of chain, in hash entry array */
1507                 entry = lastEntry;
1508         }
1509         memcpy (&entry->shader, shader, sizeof (q3shaderinfo_t));
1510 }
1511
1512 extern cvar_t r_picmipworld;
1513 void Mod_LoadQ3Shaders(void)
1514 {
1515         int j;
1516         int fileindex;
1517         fssearch_t *search;
1518         char *f;
1519         const char *text;
1520         q3shaderinfo_t shader;
1521         q3shaderinfo_layer_t *layer;
1522         int numparameters;
1523         char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
1524
1525         Mod_FreeQ3Shaders();
1526
1527         q3shaders_mem = Mem_AllocPool("q3shaders", 0, NULL);
1528         q3shader_data = (q3shader_data_t*)Mem_Alloc (q3shaders_mem,
1529                 sizeof (q3shader_data_t));
1530         Mem_ExpandableArray_NewArray (&q3shader_data->hash_entries,
1531                 q3shaders_mem, sizeof (q3shader_hash_entry_t), 256);
1532         Mem_ExpandableArray_NewArray (&q3shader_data->char_ptrs,
1533                 q3shaders_mem, sizeof (char**), 256);
1534
1535         search = FS_Search("scripts/*.shader", true, false);
1536         if (!search)
1537                 return;
1538         for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
1539         {
1540                 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
1541                 if (!f)
1542                         continue;
1543                 while (COM_ParseToken_QuakeC(&text, false))
1544                 {
1545                         memset (&shader, 0, sizeof(shader));
1546                         shader.reflectmin = 0;
1547                         shader.reflectmax = 1;
1548                         shader.refractfactor = 1;
1549                         Vector4Set(shader.refractcolor4f, 1, 1, 1, 1);
1550                         shader.reflectfactor = 1;
1551                         Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
1552                         shader.r_water_wateralpha = 1;
1553                         shader.specularscalemod = 1;
1554                         shader.specularpowermod = 1;
1555
1556                         strlcpy(shader.name, com_token, sizeof(shader.name));
1557                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1558                         {
1559                                 Con_DPrintf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
1560                                 break;
1561                         }
1562                         while (COM_ParseToken_QuakeC(&text, false))
1563                         {
1564                                 if (!strcasecmp(com_token, "}"))
1565                                         break;
1566                                 if (!strcasecmp(com_token, "{"))
1567                                 {
1568                                         static q3shaderinfo_layer_t dummy;
1569                                         if (shader.numlayers < Q3SHADER_MAXLAYERS)
1570                                         {
1571                                                 layer = shader.layers + shader.numlayers++;
1572                                         }
1573                                         else
1574                                         {
1575                                                 // parse and process it anyway, just don't store it (so a map $lightmap or such stuff still is found)
1576                                                 memset(&dummy, 0, sizeof(dummy));
1577                                                 layer = &dummy;
1578                                         }
1579                                         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1580                                         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1581                                         layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1582                                         layer->blendfunc[0] = GL_ONE;
1583                                         layer->blendfunc[1] = GL_ZERO;
1584                                         while (COM_ParseToken_QuakeC(&text, false))
1585                                         {
1586                                                 if (!strcasecmp(com_token, "}"))
1587                                                         break;
1588                                                 if (!strcasecmp(com_token, "\n"))
1589                                                         continue;
1590                                                 numparameters = 0;
1591                                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1592                                                 {
1593                                                         if (j < TEXTURE_MAXFRAMES + 4)
1594                                                         {
1595                                                                 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1596                                                                 numparameters = j + 1;
1597                                                         }
1598                                                         if (!COM_ParseToken_QuakeC(&text, true))
1599                                                                 break;
1600                                                 }
1601                                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1602                                                 //      parameter[j][0] = 0;
1603                                                 if (developer_insane.integer)
1604                                                 {
1605                                                         Con_DPrintf("%s %i: ", shader.name, shader.numlayers - 1);
1606                                                         for (j = 0;j < numparameters;j++)
1607                                                                 Con_DPrintf(" %s", parameter[j]);
1608                                                         Con_DPrint("\n");
1609                                                 }
1610                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
1611                                                 {
1612                                                         if (numparameters == 2)
1613                                                         {
1614                                                                 if (!strcasecmp(parameter[1], "add"))
1615                                                                 {
1616                                                                         layer->blendfunc[0] = GL_ONE;
1617                                                                         layer->blendfunc[1] = GL_ONE;
1618                                                                 }
1619                                                                 else if (!strcasecmp(parameter[1], "filter"))
1620                                                                 {
1621                                                                         layer->blendfunc[0] = GL_DST_COLOR;
1622                                                                         layer->blendfunc[1] = GL_ZERO;
1623                                                                 }
1624                                                                 else if (!strcasecmp(parameter[1], "blend"))
1625                                                                 {
1626                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1627                                                                         layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
1628                                                                 }
1629                                                         }
1630                                                         else if (numparameters == 3)
1631                                                         {
1632                                                                 int k;
1633                                                                 for (k = 0;k < 2;k++)
1634                                                                 {
1635                                                                         if (!strcasecmp(parameter[k+1], "GL_ONE"))
1636                                                                                 layer->blendfunc[k] = GL_ONE;
1637                                                                         else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
1638                                                                                 layer->blendfunc[k] = GL_ZERO;
1639                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
1640                                                                                 layer->blendfunc[k] = GL_SRC_COLOR;
1641                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
1642                                                                                 layer->blendfunc[k] = GL_SRC_ALPHA;
1643                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
1644                                                                                 layer->blendfunc[k] = GL_DST_COLOR;
1645                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
1646                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1647                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
1648                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
1649                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
1650                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
1651                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
1652                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
1653                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
1654                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1655                                                                         else
1656                                                                                 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
1657                                                                 }
1658                                                         }
1659                                                 }
1660                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
1661                                                         layer->alphatest = true;
1662                                                 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
1663                                                 {
1664                                                         if (!strcasecmp(parameter[0], "clampmap"))
1665                                                                 layer->clampmap = true;
1666                                                         layer->numframes = 1;
1667                                                         layer->framerate = 1;
1668                                                         layer->texturename = (char**)Mem_ExpandableArray_AllocRecord (
1669                                                                 &q3shader_data->char_ptrs);
1670                                                         layer->texturename[0] = Mem_strdup (q3shaders_mem, parameter[1]);
1671                                                         if (!strcasecmp(parameter[1], "$lightmap"))
1672                                                                 shader.lighting = true;
1673                                                 }
1674                                                 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
1675                                                 {
1676                                                         int i;
1677                                                         layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
1678                                                         layer->framerate = atof(parameter[1]);
1679                                                         layer->texturename = (char **) Mem_Alloc (q3shaders_mem, sizeof (char*) * layer->numframes);
1680                                                         for (i = 0;i < layer->numframes;i++)
1681                                                                 layer->texturename[i] = Mem_strdup (q3shaders_mem, parameter[i + 2]);
1682                                                 }
1683                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen"))
1684                                                 {
1685                                                         int i;
1686                                                         for (i = 0;i < numparameters - 2 && i < Q3RGBGEN_MAXPARMS;i++)
1687                                                                 layer->rgbgen.parms[i] = atof(parameter[i+2]);
1688                                                              if (!strcasecmp(parameter[1], "identity"))         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1689                                                         else if (!strcasecmp(parameter[1], "const"))            layer->rgbgen.rgbgen = Q3RGBGEN_CONST;
1690                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->rgbgen.rgbgen = Q3RGBGEN_ENTITY;
1691                                                         else if (!strcasecmp(parameter[1], "exactvertex"))      layer->rgbgen.rgbgen = Q3RGBGEN_EXACTVERTEX;
1692                                                         else if (!strcasecmp(parameter[1], "identitylighting")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITYLIGHTING;
1693                                                         else if (!strcasecmp(parameter[1], "lightingdiffuse"))  layer->rgbgen.rgbgen = Q3RGBGEN_LIGHTINGDIFFUSE;
1694                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSENTITY;
1695                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSVERTEX;
1696                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->rgbgen.rgbgen = Q3RGBGEN_VERTEX;
1697                                                         else if (!strcasecmp(parameter[1], "wave"))
1698                                                         {
1699                                                                 layer->rgbgen.rgbgen = Q3RGBGEN_WAVE;
1700                                                                 layer->rgbgen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1701                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1702                                                                         layer->rgbgen.waveparms[i] = atof(parameter[i+3]);
1703                                                         }
1704                                                         else Con_DPrintf("%s parsing warning: unknown rgbgen %s\n", search->filenames[fileindex], parameter[1]);
1705                                                 }
1706                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen"))
1707                                                 {
1708                                                         int i;
1709                                                         for (i = 0;i < numparameters - 2 && i < Q3ALPHAGEN_MAXPARMS;i++)
1710                                                                 layer->alphagen.parms[i] = atof(parameter[i+2]);
1711                                                              if (!strcasecmp(parameter[1], "identity"))         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1712                                                         else if (!strcasecmp(parameter[1], "const"))            layer->alphagen.alphagen = Q3ALPHAGEN_CONST;
1713                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->alphagen.alphagen = Q3ALPHAGEN_ENTITY;
1714                                                         else if (!strcasecmp(parameter[1], "lightingspecular")) layer->alphagen.alphagen = Q3ALPHAGEN_LIGHTINGSPECULAR;
1715                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSENTITY;
1716                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSVERTEX;
1717                                                         else if (!strcasecmp(parameter[1], "portal"))           layer->alphagen.alphagen = Q3ALPHAGEN_PORTAL;
1718                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->alphagen.alphagen = Q3ALPHAGEN_VERTEX;
1719                                                         else if (!strcasecmp(parameter[1], "wave"))
1720                                                         {
1721                                                                 layer->alphagen.alphagen = Q3ALPHAGEN_WAVE;
1722                                                                 layer->alphagen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1723                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1724                                                                         layer->alphagen.waveparms[i] = atof(parameter[i+3]);
1725                                                         }
1726                                                         else Con_DPrintf("%s parsing warning: unknown alphagen %s\n", search->filenames[fileindex], parameter[1]);
1727                                                 }
1728                                                 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "texgen") || !strcasecmp(parameter[0], "tcgen")))
1729                                                 {
1730                                                         int i;
1731                                                         // observed values: tcgen environment
1732                                                         // no other values have been observed in real shaders
1733                                                         for (i = 0;i < numparameters - 2 && i < Q3TCGEN_MAXPARMS;i++)
1734                                                                 layer->tcgen.parms[i] = atof(parameter[i+2]);
1735                                                              if (!strcasecmp(parameter[1], "base"))        layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1736                                                         else if (!strcasecmp(parameter[1], "texture"))     layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1737                                                         else if (!strcasecmp(parameter[1], "environment")) layer->tcgen.tcgen = Q3TCGEN_ENVIRONMENT;
1738                                                         else if (!strcasecmp(parameter[1], "lightmap"))    layer->tcgen.tcgen = Q3TCGEN_LIGHTMAP;
1739                                                         else if (!strcasecmp(parameter[1], "vector"))      layer->tcgen.tcgen = Q3TCGEN_VECTOR;
1740                                                         else Con_DPrintf("%s parsing warning: unknown tcgen mode %s\n", search->filenames[fileindex], parameter[1]);
1741                                                 }
1742                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "tcmod"))
1743                                                 {
1744                                                         int i, tcmodindex;
1745                                                         // observed values:
1746                                                         // tcmod rotate #
1747                                                         // tcmod scale # #
1748                                                         // tcmod scroll # #
1749                                                         // tcmod stretch sin # # # #
1750                                                         // tcmod stretch triangle # # # #
1751                                                         // tcmod transform # # # # # #
1752                                                         // tcmod turb # # # #
1753                                                         // tcmod turb sin # # # #  (this is bogus)
1754                                                         // no other values have been observed in real shaders
1755                                                         for (tcmodindex = 0;tcmodindex < Q3MAXTCMODS;tcmodindex++)
1756                                                                 if (!layer->tcmods[tcmodindex].tcmod)
1757                                                                         break;
1758                                                         if (tcmodindex < Q3MAXTCMODS)
1759                                                         {
1760                                                                 for (i = 0;i < numparameters - 2 && i < Q3TCMOD_MAXPARMS;i++)
1761                                                                         layer->tcmods[tcmodindex].parms[i] = atof(parameter[i+2]);
1762                                                                          if (!strcasecmp(parameter[1], "entitytranslate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ENTITYTRANSLATE;
1763                                                                 else if (!strcasecmp(parameter[1], "rotate"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ROTATE;
1764                                                                 else if (!strcasecmp(parameter[1], "scale"))           layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCALE;
1765                                                                 else if (!strcasecmp(parameter[1], "scroll"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCROLL;
1766                                                                 else if (!strcasecmp(parameter[1], "page"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_PAGE;
1767                                                                 else if (!strcasecmp(parameter[1], "stretch"))
1768                                                                 {
1769                                                                         layer->tcmods[tcmodindex].tcmod = Q3TCMOD_STRETCH;
1770                                                                         layer->tcmods[tcmodindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1771                                                                         for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1772                                                                                 layer->tcmods[tcmodindex].waveparms[i] = atof(parameter[i+3]);
1773                                                                 }
1774                                                                 else if (!strcasecmp(parameter[1], "transform"))       layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TRANSFORM;
1775                                                                 else if (!strcasecmp(parameter[1], "turb"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TURBULENT;
1776                                                                 else Con_DPrintf("%s parsing warning: unknown tcmod mode %s\n", search->filenames[fileindex], parameter[1]);
1777                                                         }
1778                                                         else
1779                                                                 Con_DPrintf("%s parsing warning: too many tcmods on one layer\n", search->filenames[fileindex]);
1780                                                 }
1781                                                 // break out a level if it was a closing brace (not using the character here to not confuse vim)
1782                                                 if (!strcasecmp(com_token, "}"))
1783                                                         break;
1784                                         }
1785                                         if (layer->rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE || layer->rgbgen.rgbgen == Q3RGBGEN_VERTEX)
1786                                                 shader.lighting = true;
1787                                         if (layer->alphagen.alphagen == Q3ALPHAGEN_VERTEX)
1788                                         {
1789                                                 if (layer == shader.layers + 0)
1790                                                 {
1791                                                         // vertex controlled transparency
1792                                                         shader.vertexalpha = true;
1793                                                 }
1794                                                 else
1795                                                 {
1796                                                         // multilayer terrain shader or similar
1797                                                         shader.textureblendalpha = true;
1798                                                 }
1799                                         }
1800                                         layer->texflags = TEXF_ALPHA;
1801                                         if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
1802                                                 layer->texflags |= TEXF_MIPMAP;
1803                                         if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
1804                                                 layer->texflags |= TEXF_PICMIP | TEXF_COMPRESS;
1805                                         if (layer->clampmap)
1806                                                 layer->texflags |= TEXF_CLAMP;
1807                                         continue;
1808                                 }
1809                                 numparameters = 0;
1810                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1811                                 {
1812                                         if (j < TEXTURE_MAXFRAMES + 4)
1813                                         {
1814                                                 strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1815                                                 numparameters = j + 1;
1816                                         }
1817                                         if (!COM_ParseToken_QuakeC(&text, true))
1818                                                 break;
1819                                 }
1820                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1821                                 //      parameter[j][0] = 0;
1822                                 if (fileindex == 0 && !strcasecmp(com_token, "}"))
1823                                         break;
1824                                 if (developer_insane.integer)
1825                                 {
1826                                         Con_DPrintf("%s: ", shader.name);
1827                                         for (j = 0;j < numparameters;j++)
1828                                                 Con_DPrintf(" %s", parameter[j]);
1829                                         Con_DPrint("\n");
1830                                 }
1831                                 if (numparameters < 1)
1832                                         continue;
1833                                 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
1834                                 {
1835                                         if (!strcasecmp(parameter[1], "alphashadow"))
1836                                                 shader.surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
1837                                         else if (!strcasecmp(parameter[1], "areaportal"))
1838                                                 shader.surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
1839                                         else if (!strcasecmp(parameter[1], "botclip"))
1840                                                 shader.surfaceparms |= Q3SURFACEPARM_BOTCLIP;
1841                                         else if (!strcasecmp(parameter[1], "clusterportal"))
1842                                                 shader.surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
1843                                         else if (!strcasecmp(parameter[1], "detail"))
1844                                                 shader.surfaceparms |= Q3SURFACEPARM_DETAIL;
1845                                         else if (!strcasecmp(parameter[1], "donotenter"))
1846                                                 shader.surfaceparms |= Q3SURFACEPARM_DONOTENTER;
1847                                         else if (!strcasecmp(parameter[1], "dust"))
1848                                                 shader.surfaceparms |= Q3SURFACEPARM_DUST;
1849                                         else if (!strcasecmp(parameter[1], "hint"))
1850                                                 shader.surfaceparms |= Q3SURFACEPARM_HINT;
1851                                         else if (!strcasecmp(parameter[1], "fog"))
1852                                                 shader.surfaceparms |= Q3SURFACEPARM_FOG;
1853                                         else if (!strcasecmp(parameter[1], "lava"))
1854                                                 shader.surfaceparms |= Q3SURFACEPARM_LAVA;
1855                                         else if (!strcasecmp(parameter[1], "lightfilter"))
1856                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
1857                                         else if (!strcasecmp(parameter[1], "lightgrid"))
1858                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
1859                                         else if (!strcasecmp(parameter[1], "metalsteps"))
1860                                                 shader.surfaceparms |= Q3SURFACEPARM_METALSTEPS;
1861                                         else if (!strcasecmp(parameter[1], "nodamage"))
1862                                                 shader.surfaceparms |= Q3SURFACEPARM_NODAMAGE;
1863                                         else if (!strcasecmp(parameter[1], "nodlight"))
1864                                                 shader.surfaceparms |= Q3SURFACEPARM_NODLIGHT;
1865                                         else if (!strcasecmp(parameter[1], "nodraw"))
1866                                                 shader.surfaceparms |= Q3SURFACEPARM_NODRAW;
1867                                         else if (!strcasecmp(parameter[1], "nodrop"))
1868                                                 shader.surfaceparms |= Q3SURFACEPARM_NODROP;
1869                                         else if (!strcasecmp(parameter[1], "noimpact"))
1870                                                 shader.surfaceparms |= Q3SURFACEPARM_NOIMPACT;
1871                                         else if (!strcasecmp(parameter[1], "nolightmap"))
1872                                                 shader.surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
1873                                         else if (!strcasecmp(parameter[1], "nomarks"))
1874                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMARKS;
1875                                         else if (!strcasecmp(parameter[1], "nomipmaps"))
1876                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
1877                                         else if (!strcasecmp(parameter[1], "nonsolid"))
1878                                                 shader.surfaceparms |= Q3SURFACEPARM_NONSOLID;
1879                                         else if (!strcasecmp(parameter[1], "origin"))
1880                                                 shader.surfaceparms |= Q3SURFACEPARM_ORIGIN;
1881                                         else if (!strcasecmp(parameter[1], "playerclip"))
1882                                                 shader.surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
1883                                         else if (!strcasecmp(parameter[1], "sky"))
1884                                                 shader.surfaceparms |= Q3SURFACEPARM_SKY;
1885                                         else if (!strcasecmp(parameter[1], "slick"))
1886                                                 shader.surfaceparms |= Q3SURFACEPARM_SLICK;
1887                                         else if (!strcasecmp(parameter[1], "slime"))
1888                                                 shader.surfaceparms |= Q3SURFACEPARM_SLIME;
1889                                         else if (!strcasecmp(parameter[1], "structural"))
1890                                                 shader.surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
1891                                         else if (!strcasecmp(parameter[1], "trans"))
1892                                                 shader.surfaceparms |= Q3SURFACEPARM_TRANS;
1893                                         else if (!strcasecmp(parameter[1], "water"))
1894                                                 shader.surfaceparms |= Q3SURFACEPARM_WATER;
1895                                         else if (!strcasecmp(parameter[1], "pointlight"))
1896                                                 shader.surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
1897                                         else if (!strcasecmp(parameter[1], "antiportal"))
1898                                                 shader.surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
1899                                         else
1900                                                 Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
1901                                 }
1902                                 else if (!strcasecmp(parameter[0], "dpshadow"))
1903                                         shader.dpshadow = true;
1904                                 else if (!strcasecmp(parameter[0], "dpnoshadow"))
1905                                         shader.dpnoshadow = true;
1906                                 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
1907                                 {
1908                                         // some q3 skies don't have the sky parm set
1909                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
1910                                         strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
1911                                 }
1912                                 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
1913                                 {
1914                                         // some q3 skies don't have the sky parm set
1915                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
1916                                         if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
1917                                                 strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
1918                                 }
1919                                 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
1920                                 {
1921                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
1922                                                 shader.textureflags |= Q3TEXTUREFLAG_TWOSIDED;
1923                                 }
1924                                 else if (!strcasecmp(parameter[0], "nomipmaps"))
1925                                         shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
1926                                 else if (!strcasecmp(parameter[0], "nopicmip"))
1927                                         shader.textureflags |= Q3TEXTUREFLAG_NOPICMIP;
1928                                 else if (!strcasecmp(parameter[0], "polygonoffset"))
1929                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
1930                                 else if (!strcasecmp(parameter[0], "dp_refract") && numparameters >= 5)
1931                                 {
1932                                         shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
1933                                         shader.refractfactor = atof(parameter[1]);
1934                                         Vector4Set(shader.refractcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), 1);
1935                                 }
1936                                 else if (!strcasecmp(parameter[0], "dp_reflect") && numparameters >= 6)
1937                                 {
1938                                         shader.textureflags |= Q3TEXTUREFLAG_REFLECTION;
1939                                         shader.reflectfactor = atof(parameter[1]);
1940                                         Vector4Set(shader.reflectcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), atof(parameter[5]));
1941                                 }
1942                                 else if (!strcasecmp(parameter[0], "dp_water") && numparameters >= 12)
1943                                 {
1944                                         shader.textureflags |= Q3TEXTUREFLAG_WATERSHADER;
1945                                         shader.reflectmin = atof(parameter[1]);
1946                                         shader.reflectmax = atof(parameter[2]);
1947                                         shader.refractfactor = atof(parameter[3]);
1948                                         shader.reflectfactor = atof(parameter[4]);
1949                                         Vector4Set(shader.refractcolor4f, atof(parameter[5]), atof(parameter[6]), atof(parameter[7]), 1);
1950                                         Vector4Set(shader.reflectcolor4f, atof(parameter[8]), atof(parameter[9]), atof(parameter[10]), 1);
1951                                         shader.r_water_wateralpha = atof(parameter[11]);
1952                                 }
1953                                 else if (!strcasecmp(parameter[0], "dp_glossintensitymod") && numparameters >= 2)
1954                                 {
1955                                         shader.specularscalemod = atof(parameter[1]);
1956                                 }
1957                                 else if (!strcasecmp(parameter[0], "dp_glossexponentmod") && numparameters >= 2)
1958                                 {
1959                                         shader.specularpowermod = atof(parameter[1]);
1960                                 }
1961                                 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
1962                                 {
1963                                         int i, deformindex;
1964                                         for (deformindex = 0;deformindex < Q3MAXDEFORMS;deformindex++)
1965                                                 if (!shader.deforms[deformindex].deform)
1966                                                         break;
1967                                         if (deformindex < Q3MAXDEFORMS)
1968                                         {
1969                                                 for (i = 0;i < numparameters - 2 && i < Q3DEFORM_MAXPARMS;i++)
1970                                                         shader.deforms[deformindex].parms[i] = atof(parameter[i+2]);
1971                                                      if (!strcasecmp(parameter[1], "projectionshadow")) shader.deforms[deformindex].deform = Q3DEFORM_PROJECTIONSHADOW;
1972                                                 else if (!strcasecmp(parameter[1], "autosprite"      )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE;
1973                                                 else if (!strcasecmp(parameter[1], "autosprite2"     )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE2;
1974                                                 else if (!strcasecmp(parameter[1], "text0"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT0;
1975                                                 else if (!strcasecmp(parameter[1], "text1"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT1;
1976                                                 else if (!strcasecmp(parameter[1], "text2"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT2;
1977                                                 else if (!strcasecmp(parameter[1], "text3"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT3;
1978                                                 else if (!strcasecmp(parameter[1], "text4"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT4;
1979                                                 else if (!strcasecmp(parameter[1], "text5"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT5;
1980                                                 else if (!strcasecmp(parameter[1], "text6"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT6;
1981                                                 else if (!strcasecmp(parameter[1], "text7"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT7;
1982                                                 else if (!strcasecmp(parameter[1], "bulge"           )) shader.deforms[deformindex].deform = Q3DEFORM_BULGE;
1983                                                 else if (!strcasecmp(parameter[1], "normal"          )) shader.deforms[deformindex].deform = Q3DEFORM_NORMAL;
1984                                                 else if (!strcasecmp(parameter[1], "wave"            ))
1985                                                 {
1986                                                         shader.deforms[deformindex].deform = Q3DEFORM_WAVE;
1987                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[3]);
1988                                                         for (i = 0;i < numparameters - 4 && i < Q3WAVEPARMS;i++)
1989                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+4]);
1990                                                 }
1991                                                 else if (!strcasecmp(parameter[1], "move"            ))
1992                                                 {
1993                                                         shader.deforms[deformindex].deform = Q3DEFORM_MOVE;
1994                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[5]);
1995                                                         for (i = 0;i < numparameters - 6 && i < Q3WAVEPARMS;i++)
1996                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+6]);
1997                                                 }
1998                                         }
1999                                 }
2000                         }
2001                         // pick the primary layer to render with
2002                         if (shader.numlayers)
2003                         {
2004                                 shader.backgroundlayer = -1;
2005                                 shader.primarylayer = 0;
2006                                 // if lightmap comes first this is definitely an ordinary texture
2007                                 // if the first two layers have the correct blendfuncs and use vertex alpha, it is a blended terrain shader
2008                                 if ((shader.layers[shader.primarylayer].texturename != NULL)
2009                                   && !strcasecmp(shader.layers[shader.primarylayer].texturename[0], "$lightmap"))
2010                                 {
2011                                         shader.backgroundlayer = -1;
2012                                         shader.primarylayer = 1;
2013                                 }
2014                                 else if (shader.numlayers >= 2
2015                                 &&   shader.layers[1].alphagen.alphagen == Q3ALPHAGEN_VERTEX
2016                                 &&  (shader.layers[0].blendfunc[0] == GL_ONE       && shader.layers[0].blendfunc[1] == GL_ZERO                && !shader.layers[0].alphatest)
2017                                 && ((shader.layers[1].blendfunc[0] == GL_SRC_ALPHA && shader.layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2018                                 ||  (shader.layers[1].blendfunc[0] == GL_ONE       && shader.layers[1].blendfunc[1] == GL_ZERO                &&  shader.layers[1].alphatest)))
2019                                 {
2020                                         // terrain blending or other effects
2021                                         shader.backgroundlayer = 0;
2022                                         shader.primarylayer = 1;
2023                                 }
2024                         }
2025                         // fix up multiple reflection types
2026                         if(shader.textureflags & Q3TEXTUREFLAG_WATERSHADER)
2027                                 shader.textureflags &= ~(Q3TEXTUREFLAG_REFRACTION | Q3TEXTUREFLAG_REFLECTION);
2028
2029                         Q3Shader_AddToHash (&shader);
2030                 }
2031                 Mem_Free(f);
2032         }
2033         FS_FreeSearch(search);
2034 }
2035
2036 q3shaderinfo_t *Mod_LookupQ3Shader(const char *name)
2037 {
2038         unsigned short hash;
2039         q3shader_hash_entry_t* entry;
2040         if (!q3shaders_mem)
2041                 Mod_LoadQ3Shaders();
2042         hash = CRC_Block_CaseInsensitive ((const unsigned char *)name, strlen (name));
2043         entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
2044         while (entry != NULL)
2045         {
2046                 if (strcasecmp (entry->shader.name, name) == 0)
2047                         return &entry->shader;
2048                 entry = entry->chain;
2049         }
2050         return NULL;
2051 }
2052
2053 qboolean Mod_LoadTextureFromQ3Shader(texture_t *texture, const char *name, qboolean warnmissing, qboolean fallback, int defaulttexflags)
2054 {
2055         int j;
2056         int texflagsmask;
2057         qboolean success = true;
2058         q3shaderinfo_t *shader;
2059         if (!name)
2060                 name = "";
2061         strlcpy(texture->name, name, sizeof(texture->name));
2062         shader = name[0] ? Mod_LookupQ3Shader(name) : NULL;
2063
2064         texflagsmask = ~0;
2065         if(!(defaulttexflags & TEXF_PICMIP))
2066                 texflagsmask &= ~TEXF_PICMIP;
2067         if(!(defaulttexflags & TEXF_COMPRESS))
2068                 texflagsmask &= ~TEXF_COMPRESS;
2069         texture->specularscalemod = 1; // unless later loaded from the shader
2070         texture->specularpowermod = 1; // unless later loaded from the shader
2071         // WHEN ADDING DEFAULTS HERE, REMEMBER TO SYNC TO SHADER LOADING ABOVE
2072         // HERE, AND Q1BSP LOADING
2073         // JUST GREP FOR "specularscalemod = 1".
2074
2075         if (shader)
2076         {
2077                 if (developer_loading.integer)
2078                         Con_Printf("%s: loaded shader for %s\n", loadmodel->name, name);
2079                 texture->surfaceparms = shader->surfaceparms;
2080
2081                 // allow disabling of picmip or compression by defaulttexflags
2082                 texture->textureflags = shader->textureflags & texflagsmask;
2083
2084                 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
2085                 {
2086                         texture->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2087                         if (shader->skyboxname[0])
2088                         {
2089                                 // quake3 seems to append a _ to the skybox name, so this must do so as well
2090                                 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
2091                         }
2092                 }
2093                 else if ((texture->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
2094                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2095                 else
2096                         texture->basematerialflags = MATERIALFLAG_WALL;
2097
2098                 if (shader->layers[0].alphatest)
2099                         texture->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
2100                 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
2101                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
2102                 if (shader->textureflags & Q3TEXTUREFLAG_POLYGONOFFSET)
2103                         texture->biaspolygonoffset -= 2;
2104                 if (shader->textureflags & Q3TEXTUREFLAG_REFRACTION)
2105                         texture->basematerialflags |= MATERIALFLAG_REFRACTION;
2106                 if (shader->textureflags & Q3TEXTUREFLAG_REFLECTION)
2107                         texture->basematerialflags |= MATERIALFLAG_REFLECTION;
2108                 if (shader->textureflags & Q3TEXTUREFLAG_WATERSHADER)
2109                         texture->basematerialflags |= MATERIALFLAG_WATERSHADER;
2110                 texture->customblendfunc[0] = GL_ONE;
2111                 texture->customblendfunc[1] = GL_ZERO;
2112                 if (shader->numlayers > 0)
2113                 {
2114                         texture->customblendfunc[0] = shader->layers[0].blendfunc[0];
2115                         texture->customblendfunc[1] = shader->layers[0].blendfunc[1];
2116 /*
2117 Q3 shader blendfuncs actually used in the game (* = supported by DP)
2118 * additive               GL_ONE GL_ONE
2119 additive weird         GL_ONE GL_SRC_ALPHA
2120 additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
2121 * alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
2122 alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
2123 brighten               GL_DST_COLOR GL_ONE
2124 brighten               GL_ONE GL_SRC_COLOR
2125 brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
2126 brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
2127 * modulate               GL_DST_COLOR GL_ZERO
2128 * modulate               GL_ZERO GL_SRC_COLOR
2129 modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
2130 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
2131 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
2132 * modulate x2            GL_DST_COLOR GL_SRC_COLOR
2133 * no blend               GL_ONE GL_ZERO
2134 nothing                GL_ZERO GL_ONE
2135 */
2136                         // if not opaque, figure out what blendfunc to use
2137                         if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
2138                         {
2139                                 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
2140                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2141                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
2142                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2143                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2144                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2145                                 else
2146                                         texture->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2147                         }
2148                 }
2149                 if (!shader->lighting)
2150                         texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
2151                 if (shader->primarylayer >= 0)
2152                 {
2153                         q3shaderinfo_layer_t* primarylayer = shader->layers + shader->primarylayer;
2154                         // copy over many primarylayer parameters
2155                         texture->rgbgen = primarylayer->rgbgen;
2156                         texture->alphagen = primarylayer->alphagen;
2157                         texture->tcgen = primarylayer->tcgen;
2158                         memcpy(texture->tcmods, primarylayer->tcmods, sizeof(texture->tcmods));
2159                         // load the textures
2160                         texture->numskinframes = primarylayer->numframes;
2161                         texture->skinframerate = primarylayer->framerate;
2162                         for (j = 0;j < primarylayer->numframes;j++)
2163                         {
2164                                 if(cls.state == ca_dedicated)
2165                                 {
2166                                         texture->skinframes[j] = NULL;
2167                                 }
2168                                 else if (!(texture->skinframes[j] = R_SkinFrame_LoadExternal(primarylayer->texturename[j], primarylayer->texflags & texflagsmask, false)))
2169                                 {
2170                                         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);
2171                                         texture->skinframes[j] = R_SkinFrame_LoadMissing();
2172                                 }
2173                         }
2174                 }
2175                 if (shader->backgroundlayer >= 0)
2176                 {
2177                         q3shaderinfo_layer_t* backgroundlayer = shader->layers + shader->backgroundlayer;
2178                         // copy over one secondarylayer parameter
2179                         memcpy(texture->backgroundtcmods, backgroundlayer->tcmods, sizeof(texture->backgroundtcmods));
2180                         // load the textures
2181                         texture->backgroundnumskinframes = backgroundlayer->numframes;
2182                         texture->backgroundskinframerate = backgroundlayer->framerate;
2183                         for (j = 0;j < backgroundlayer->numframes;j++)
2184                         {
2185                                 if(cls.state == ca_dedicated)
2186                                 {
2187                                         texture->skinframes[j] = NULL;
2188                                 }
2189                                 else if (!(texture->backgroundskinframes[j] = R_SkinFrame_LoadExternal(backgroundlayer->texturename[j], backgroundlayer->texflags & texflagsmask, false)))
2190                                 {
2191                                         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);
2192                                         texture->backgroundskinframes[j] = R_SkinFrame_LoadMissing();
2193                                 }
2194                         }
2195                 }
2196                 if (shader->dpshadow)
2197                         texture->basematerialflags &= ~MATERIALFLAG_NOSHADOW;
2198                 if (shader->dpnoshadow)
2199                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW;
2200                 memcpy(texture->deforms, shader->deforms, sizeof(texture->deforms));
2201                 texture->reflectmin = shader->reflectmin;
2202                 texture->reflectmax = shader->reflectmax;
2203                 texture->refractfactor = shader->refractfactor;
2204                 Vector4Copy(shader->refractcolor4f, texture->refractcolor4f);
2205                 texture->reflectfactor = shader->reflectfactor;
2206                 Vector4Copy(shader->reflectcolor4f, texture->reflectcolor4f);
2207                 texture->r_water_wateralpha = shader->r_water_wateralpha;
2208                 texture->specularscalemod = shader->specularscalemod;
2209                 texture->specularpowermod = shader->specularpowermod;
2210         }
2211         else if (!strcmp(texture->name, "noshader") || !texture->name[0])
2212         {
2213                 if (developer_extra.integer)
2214                         Con_DPrintf("^1%s:^7 using fallback noshader material for ^3\"%s\"\n", loadmodel->name, name);
2215                 texture->surfaceparms = 0;
2216         }
2217         else if (!strcmp(texture->name, "common/nodraw") || !strcmp(texture->name, "textures/common/nodraw"))
2218         {
2219                 if (developer_extra.integer)
2220                         Con_DPrintf("^1%s:^7 using fallback nodraw material for ^3\"%s\"\n", loadmodel->name, name);
2221                 texture->surfaceparms = 0;
2222                 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2223         }
2224         else
2225         {
2226                 if (developer_extra.integer)
2227                         Con_DPrintf("^1%s:^7 No shader found for texture ^3\"%s\"\n", loadmodel->name, texture->name);
2228                 texture->surfaceparms = 0;
2229                 if (texture->surfaceflags & Q3SURFACEFLAG_NODRAW)
2230                         texture->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2231                 else if (texture->surfaceflags & Q3SURFACEFLAG_SKY)
2232                         texture->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2233                 else
2234                         texture->basematerialflags |= MATERIALFLAG_WALL;
2235                 texture->numskinframes = 1;
2236                 if(cls.state == ca_dedicated)
2237                 {
2238                         texture->skinframes[0] = NULL;
2239                 }
2240                 else
2241                 {
2242                         if (fallback)
2243                         {
2244                                 if ((texture->skinframes[0] = R_SkinFrame_LoadExternal(texture->name, defaulttexflags, false)))
2245                                 {
2246                                         if(texture->skinframes[0]->hasalpha)
2247                                                 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2248                                 }
2249                                 else
2250                                         success = false;
2251                         }
2252                         else
2253                                 success = false;
2254                         if (!success && warnmissing)
2255                                 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"\n", loadmodel->name, texture->name);
2256                 }
2257         }
2258         // init the animation variables
2259         texture->currentframe = texture;
2260         if (texture->numskinframes < 1)
2261                 texture->numskinframes = 1;
2262         if (!texture->skinframes[0])
2263                 texture->skinframes[0] = R_SkinFrame_LoadMissing();
2264         texture->currentskinframe = texture->skinframes[0];
2265         texture->backgroundcurrentskinframe = texture->backgroundskinframes[0];
2266         return success;
2267 }
2268
2269 skinfile_t *Mod_LoadSkinFiles(void)
2270 {
2271         int i, words, line, wordsoverflow;
2272         char *text;
2273         const char *data;
2274         skinfile_t *skinfile = NULL, *first = NULL;
2275         skinfileitem_t *skinfileitem;
2276         char word[10][MAX_QPATH];
2277
2278 /*
2279 sample file:
2280 U_bodyBox,models/players/Legoman/BikerA2.tga
2281 U_RArm,models/players/Legoman/BikerA1.tga
2282 U_LArm,models/players/Legoman/BikerA1.tga
2283 U_armor,common/nodraw
2284 U_sword,common/nodraw
2285 U_shield,common/nodraw
2286 U_homb,common/nodraw
2287 U_backpack,common/nodraw
2288 U_colcha,common/nodraw
2289 tag_head,
2290 tag_weapon,
2291 tag_torso,
2292 */
2293         memset(word, 0, sizeof(word));
2294         for (i = 0;i < 256 && (data = text = (char *)FS_LoadFile(va("%s_%i.skin", loadmodel->name, i), tempmempool, true, NULL));i++)
2295         {
2296                 // If it's the first file we parse
2297                 if (skinfile == NULL)
2298                 {
2299                         skinfile = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2300                         first = skinfile;
2301                 }
2302                 else
2303                 {
2304                         skinfile->next = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2305                         skinfile = skinfile->next;
2306                 }
2307                 skinfile->next = NULL;
2308
2309                 for(line = 0;;line++)
2310                 {
2311                         // parse line
2312                         if (!COM_ParseToken_QuakeC(&data, true))
2313                                 break;
2314                         if (!strcmp(com_token, "\n"))
2315                                 continue;
2316                         words = 0;
2317                         wordsoverflow = false;
2318                         do
2319                         {
2320                                 if (words < 10)
2321                                         strlcpy(word[words++], com_token, sizeof (word[0]));
2322                                 else
2323                                         wordsoverflow = true;
2324                         }
2325                         while (COM_ParseToken_QuakeC(&data, true) && strcmp(com_token, "\n"));
2326                         if (wordsoverflow)
2327                         {
2328                                 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);
2329                                 continue;
2330                         }
2331                         // words is always >= 1
2332                         if (!strcmp(word[0], "replace"))
2333                         {
2334                                 if (words == 3)
2335                                 {
2336                                         if (developer_loading.integer)
2337                                                 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
2338                                         skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2339                                         skinfileitem->next = skinfile->items;
2340                                         skinfile->items = skinfileitem;
2341                                         strlcpy (skinfileitem->name, word[1], sizeof (skinfileitem->name));
2342                                         strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2343                                 }
2344                                 else
2345                                         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]);
2346                         }
2347                         else if (words >= 2 && !strncmp(word[0], "tag_", 4))
2348                         {
2349                                 // tag name, like "tag_weapon,"
2350                                 // not used for anything (not even in Quake3)
2351                         }
2352                         else if (words >= 2 && !strcmp(word[1], ","))
2353                         {
2354                                 // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
2355                                 if (developer_loading.integer)
2356                                         Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
2357                                 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2358                                 skinfileitem->next = skinfile->items;
2359                                 skinfile->items = skinfileitem;
2360                                 strlcpy (skinfileitem->name, word[0], sizeof (skinfileitem->name));
2361                                 strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2362                         }
2363                         else
2364                                 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);
2365                 }
2366                 Mem_Free(text);
2367         }
2368         if (i)
2369                 loadmodel->numskins = i;
2370         return first;
2371 }
2372
2373 void Mod_FreeSkinFiles(skinfile_t *skinfile)
2374 {
2375         skinfile_t *next;
2376         skinfileitem_t *skinfileitem, *nextitem;
2377         for (;skinfile;skinfile = next)
2378         {
2379                 next = skinfile->next;
2380                 for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
2381                 {
2382                         nextitem = skinfileitem->next;
2383                         Mem_Free(skinfileitem);
2384                 }
2385                 Mem_Free(skinfile);
2386         }
2387 }
2388
2389 int Mod_CountSkinFiles(skinfile_t *skinfile)
2390 {
2391         int i;
2392         for (i = 0;skinfile;skinfile = skinfile->next, i++);
2393         return i;
2394 }
2395
2396 void Mod_SnapVertices(int numcomponents, int numvertices, float *vertices, float snap)
2397 {
2398         int i;
2399         double isnap = 1.0 / snap;
2400         for (i = 0;i < numvertices*numcomponents;i++)
2401                 vertices[i] = floor(vertices[i]*isnap)*snap;
2402 }
2403
2404 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
2405 {
2406         int i, outtriangles;
2407         float edgedir1[3], edgedir2[3], temp[3];
2408         // a degenerate triangle is one with no width (thickness, surface area)
2409         // these are characterized by having all 3 points colinear (along a line)
2410         // or having two points identical
2411         // the simplest check is to calculate the triangle's area
2412         for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
2413         {
2414                 // calculate first edge
2415                 VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir1);
2416                 VectorSubtract(vertex3f + inelement3i[2] * 3, vertex3f + inelement3i[0] * 3, edgedir2);
2417                 CrossProduct(edgedir1, edgedir2, temp);
2418                 if (VectorLength2(temp) < 0.001f)
2419                         continue; // degenerate triangle (no area)
2420                 // valid triangle (has area)
2421                 VectorCopy(inelement3i, outelement3i);
2422                 outelement3i += 3;
2423                 outtriangles++;
2424         }
2425         return outtriangles;
2426 }
2427
2428 void Mod_VertexRangeFromElements(int numelements, const int *elements, int *firstvertexpointer, int *lastvertexpointer)
2429 {
2430         int i, e;
2431         int firstvertex, lastvertex;
2432         if (numelements > 0 && elements)
2433         {
2434                 firstvertex = lastvertex = elements[0];
2435                 for (i = 1;i < numelements;i++)
2436                 {
2437                         e = elements[i];
2438                         firstvertex = min(firstvertex, e);
2439                         lastvertex = max(lastvertex, e);
2440                 }
2441         }
2442         else
2443                 firstvertex = lastvertex = 0;
2444         if (firstvertexpointer)
2445                 *firstvertexpointer = firstvertex;
2446         if (lastvertexpointer)
2447                 *lastvertexpointer = lastvertex;
2448 }
2449
2450 void Mod_MakeSortedSurfaces(dp_model_t *mod)
2451 {
2452         // make an optimal set of texture-sorted batches to draw...
2453         int j, t;
2454         int *firstsurfacefortexture;
2455         int *numsurfacesfortexture;
2456         if (!mod->sortedmodelsurfaces)
2457                 mod->sortedmodelsurfaces = (int *) Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->sortedmodelsurfaces));
2458         firstsurfacefortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*firstsurfacefortexture));
2459         numsurfacesfortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*numsurfacesfortexture));
2460         memset(numsurfacesfortexture, 0, mod->num_textures * sizeof(*numsurfacesfortexture));
2461         for (j = 0;j < mod->nummodelsurfaces;j++)
2462         {
2463                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2464                 int t = (int)(surface->texture - mod->data_textures);
2465                 numsurfacesfortexture[t]++;
2466         }
2467         j = 0;
2468         for (t = 0;t < mod->num_textures;t++)
2469         {
2470                 firstsurfacefortexture[t] = j;
2471                 j += numsurfacesfortexture[t];
2472         }
2473         for (j = 0;j < mod->nummodelsurfaces;j++)
2474         {
2475                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2476                 int t = (int)(surface->texture - mod->data_textures);
2477                 mod->sortedmodelsurfaces[firstsurfacefortexture[t]++] = j + mod->firstmodelsurface;
2478         }
2479         Mem_Free(firstsurfacefortexture);
2480         Mem_Free(numsurfacesfortexture);
2481 }
2482
2483 static void Mod_BuildVBOs(void)
2484 {
2485         if (gl_paranoid.integer && loadmodel->surfmesh.data_element3s && loadmodel->surfmesh.data_element3i)
2486         {
2487                 int i;
2488                 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2489                 {
2490                         if (loadmodel->surfmesh.data_element3s[i] != loadmodel->surfmesh.data_element3i[i])
2491                         {
2492                                 Con_Printf("Mod_BuildVBOs: element %u is incorrect (%u should be %u)\n", i, loadmodel->surfmesh.data_element3s[i], loadmodel->surfmesh.data_element3i[i]);
2493                                 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2494                         }
2495                 }
2496         }
2497
2498         if (!vid.support.arb_vertex_buffer_object)
2499                 return;
2500
2501         // element buffer is easy because it's just one array
2502         if (loadmodel->surfmesh.num_triangles)
2503         {
2504                 if (loadmodel->surfmesh.data_element3s)
2505                         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);
2506                 else
2507                         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);
2508         }
2509
2510         // vertex buffer is several arrays and we put them in the same buffer
2511         //
2512         // is this wise?  the texcoordtexture2f array is used with dynamic
2513         // vertex/svector/tvector/normal when rendering animated models, on the
2514         // other hand animated models don't use a lot of vertices anyway...
2515         if (loadmodel->surfmesh.num_vertices)
2516         {
2517                 size_t size;
2518                 unsigned char *mem;
2519                 size = 0;
2520                 loadmodel->surfmesh.vbooffset_vertex3f           = size;if (loadmodel->surfmesh.data_vertex3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2521                 loadmodel->surfmesh.vbooffset_svector3f          = size;if (loadmodel->surfmesh.data_svector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2522                 loadmodel->surfmesh.vbooffset_tvector3f          = size;if (loadmodel->surfmesh.data_tvector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2523                 loadmodel->surfmesh.vbooffset_normal3f           = size;if (loadmodel->surfmesh.data_normal3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2524                 loadmodel->surfmesh.vbooffset_texcoordtexture2f  = size;if (loadmodel->surfmesh.data_texcoordtexture2f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2525                 loadmodel->surfmesh.vbooffset_texcoordlightmap2f = size;if (loadmodel->surfmesh.data_texcoordlightmap2f) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2526                 loadmodel->surfmesh.vbooffset_lightmapcolor4f    = size;if (loadmodel->surfmesh.data_lightmapcolor4f   ) size += loadmodel->surfmesh.num_vertices * sizeof(float[4]);
2527                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
2528                 if (loadmodel->surfmesh.data_vertex3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_vertex3f          , loadmodel->surfmesh.data_vertex3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2529                 if (loadmodel->surfmesh.data_svector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_svector3f         , loadmodel->surfmesh.data_svector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2530                 if (loadmodel->surfmesh.data_tvector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_tvector3f         , loadmodel->surfmesh.data_tvector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2531                 if (loadmodel->surfmesh.data_normal3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_normal3f          , loadmodel->surfmesh.data_normal3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2532                 if (loadmodel->surfmesh.data_texcoordtexture2f ) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordtexture2f , loadmodel->surfmesh.data_texcoordtexture2f , loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2533                 if (loadmodel->surfmesh.data_texcoordlightmap2f) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordlightmap2f, loadmodel->surfmesh.data_texcoordlightmap2f, loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2534                 if (loadmodel->surfmesh.data_lightmapcolor4f   ) memcpy(mem + loadmodel->surfmesh.vbooffset_lightmapcolor4f   , loadmodel->surfmesh.data_lightmapcolor4f   , loadmodel->surfmesh.num_vertices * sizeof(float[4]));
2535                 loadmodel->surfmesh.vbo = R_Mesh_CreateStaticBufferObject(GL_ARRAY_BUFFER_ARB, mem, size, loadmodel->name);
2536                 Mem_Free(mem);
2537         }
2538 }
2539
2540 static void Mod_Decompile_OBJ(dp_model_t *model, const char *filename, const char *mtlfilename, const char *originalfilename)
2541 {
2542         int vertexindex, surfaceindex, triangleindex, textureindex, countvertices = 0, countsurfaces = 0, countfaces = 0, counttextures = 0;
2543         int a, b, c;
2544         const char *texname;
2545         const int *e;
2546         const float *v, *vn, *vt;
2547         size_t l;
2548         size_t outbufferpos = 0;
2549         size_t outbuffermax = 0x100000;
2550         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
2551         const msurface_t *surface;
2552         const int maxtextures = 256;
2553         char *texturenames = (char *) Z_Malloc(maxtextures * MAX_QPATH);
2554
2555         // construct the mtllib file
2556         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "# mtllib for %s exported by darkplaces engine\n", originalfilename);
2557         if (l > 0)
2558                 outbufferpos += l;
2559         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
2560         {
2561                 countsurfaces++;
2562                 countvertices += surface->num_vertices;
2563                 countfaces += surface->num_triangles;
2564                 texname = (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default";
2565                 for (textureindex = 0;textureindex < counttextures;textureindex++)
2566                         if (!strcmp(texturenames + textureindex * MAX_QPATH, texname))
2567                                 break;
2568                 if (textureindex < counttextures)
2569                         continue; // already wrote this material entry
2570                 if (textureindex >= maxtextures)
2571                         continue; // just a precaution
2572                 textureindex = counttextures++;
2573                 strlcpy(texturenames + textureindex * MAX_QPATH, texname, MAX_QPATH);
2574                 if (outbufferpos >= outbuffermax >> 1)
2575                 {
2576                         outbuffermax *= 2;
2577                         oldbuffer = outbuffer;
2578                         outbuffer = (char *) Z_Malloc(outbuffermax);
2579                         memcpy(outbuffer, oldbuffer, outbufferpos);
2580                         Z_Free(oldbuffer);
2581                 }
2582                 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");
2583                 if (l > 0)
2584                         outbufferpos += l;
2585         }
2586
2587         // write the mtllib file
2588         FS_WriteFile(mtlfilename, outbuffer, outbufferpos);
2589         outbufferpos = 0;
2590
2591         // construct the obj file
2592         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);
2593         if (l > 0)
2594                 outbufferpos += l;
2595         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)
2596         {
2597                 if (outbufferpos >= outbuffermax >> 1)
2598                 {
2599                         outbuffermax *= 2;
2600                         oldbuffer = outbuffer;
2601                         outbuffer = (char *) Z_Malloc(outbuffermax);
2602                         memcpy(outbuffer, oldbuffer, outbufferpos);
2603                         Z_Free(oldbuffer);
2604                 }
2605                 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]);
2606                 if (l > 0)
2607                         outbufferpos += l;
2608         }
2609         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
2610         {
2611                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "usemtl %s\n", (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default");
2612                 if (l > 0)
2613                         outbufferpos += l;
2614                 for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
2615                 {
2616                         if (outbufferpos >= outbuffermax >> 1)
2617                         {
2618                                 outbuffermax *= 2;
2619                                 oldbuffer = outbuffer;
2620                                 outbuffer = (char *) Z_Malloc(outbuffermax);
2621                                 memcpy(outbuffer, oldbuffer, outbufferpos);
2622                                 Z_Free(oldbuffer);
2623                         }
2624                         a = e[0]+1;
2625                         b = e[2]+1;
2626                         c = e[1]+1;
2627                         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);
2628                         if (l > 0)
2629                                 outbufferpos += l;
2630                 }
2631         }
2632
2633         // write the obj file
2634         FS_WriteFile(filename, outbuffer, outbufferpos);
2635
2636         // clean up
2637         Z_Free(outbuffer);
2638         Z_Free(texturenames);
2639
2640         // print some stats
2641         Con_Printf("Wrote %s (%i bytes, %i vertices, %i faces, %i surfaces with %i distinct textures)\n", filename, (int)outbufferpos, countvertices, countfaces, countsurfaces, counttextures);
2642 }
2643
2644 static void Mod_Decompile_SMD(dp_model_t *model, const char *filename, int firstpose, int numposes, qboolean writetriangles)
2645 {
2646         int countnodes = 0, counttriangles = 0, countframes = 0;
2647         int surfaceindex;
2648         int triangleindex;
2649         int transformindex;
2650         int poseindex;
2651         int cornerindex;
2652         float modelscale;
2653         const int *e;
2654         const float *pose;
2655         size_t l;
2656         size_t outbufferpos = 0;
2657         size_t outbuffermax = 0x100000;
2658         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
2659         const msurface_t *surface;
2660         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "version 1\nnodes\n");
2661         if (l > 0)
2662                 outbufferpos += l;
2663         modelscale = 1;
2664         if(model->num_poses >= 0)
2665                 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]);
2666         if(fabs(modelscale - 1) > 1e-4)
2667         {
2668                 if(firstpose == 0) // only print the when writing the reference pose
2669                         Con_Printf("The model has an old-style model scale of %f\n", modelscale);
2670         }
2671         else
2672                 modelscale = 1;
2673         for (transformindex = 0;transformindex < model->num_bones;transformindex++)
2674         {
2675                 if (outbufferpos >= outbuffermax >> 1)
2676                 {
2677                         outbuffermax *= 2;
2678                         oldbuffer = outbuffer;
2679                         outbuffer = (char *) Z_Malloc(outbuffermax);
2680                         memcpy(outbuffer, oldbuffer, outbufferpos);
2681                         Z_Free(oldbuffer);
2682                 }
2683                 countnodes++;
2684                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i \"%s\" %3i\n", transformindex, model->data_bones[transformindex].name, model->data_bones[transformindex].parent);
2685                 if (l > 0)
2686                         outbufferpos += l;
2687         }
2688         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\nskeleton\n");
2689         if (l > 0)
2690                 outbufferpos += l;
2691         for (poseindex = 0, pose = model->data_poses + model->num_bones * 12 * firstpose;poseindex < numposes;poseindex++)
2692         {
2693                 countframes++;
2694                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "time %i\n", poseindex);
2695                 if (l > 0)
2696                         outbufferpos += l;
2697                 for (transformindex = 0;transformindex < model->num_bones;transformindex++, pose += 12)
2698                 {
2699                         float a, b, c;
2700                         float angles[3];
2701                         float mtest[3][4];
2702                         if (outbufferpos >= outbuffermax >> 1)
2703                         {
2704                                 outbuffermax *= 2;
2705                                 oldbuffer = outbuffer;
2706                                 outbuffer = (char *) Z_Malloc(outbuffermax);
2707                                 memcpy(outbuffer, oldbuffer, outbufferpos);
2708                                 Z_Free(oldbuffer);
2709                         }
2710
2711                         // strangely the smd angles are for a transposed matrix, so we
2712                         // have to generate a transposed matrix, then convert that...
2713                         mtest[0][0] = pose[ 0];
2714                         mtest[0][1] = pose[ 4];
2715                         mtest[0][2] = pose[ 8];
2716                         mtest[0][3] = pose[ 3];
2717                         mtest[1][0] = pose[ 1];
2718                         mtest[1][1] = pose[ 5];
2719                         mtest[1][2] = pose[ 9];
2720                         mtest[1][3] = pose[ 7];
2721                         mtest[2][0] = pose[ 2];
2722                         mtest[2][1] = pose[ 6];
2723                         mtest[2][2] = pose[10];
2724                         mtest[2][3] = pose[11];
2725                         AnglesFromVectors(angles, mtest[0], mtest[2], false);
2726                         if (angles[0] >= 180) angles[0] -= 360;
2727                         if (angles[1] >= 180) angles[1] -= 360;
2728                         if (angles[2] >= 180) angles[2] -= 360;
2729
2730                         a = DEG2RAD(angles[ROLL]);
2731                         b = DEG2RAD(angles[PITCH]);
2732                         c = DEG2RAD(angles[YAW]);
2733
2734 #if 0
2735 {
2736                         float cy, sy, cp, sp, cr, sr;
2737                         float test[3][4];
2738                         // smd matrix construction, for comparing to non-transposed m
2739                         sy = sin(c);
2740                         cy = cos(c);
2741                         sp = sin(b);
2742                         cp = cos(b);
2743                         sr = sin(a);
2744                         cr = cos(a);
2745
2746                         test[0][0] = cp*cy;
2747                         test[1][0] = cp*sy;
2748                         test[2][0] = -sp;
2749                         test[0][1] = sr*sp*cy+cr*-sy;
2750                         test[1][1] = sr*sp*sy+cr*cy;
2751                         test[2][1] = sr*cp;
2752                         test[0][2] = (cr*sp*cy+-sr*-sy);
2753                         test[1][2] = (cr*sp*sy+-sr*cy);
2754                         test[2][2] = cr*cp;
2755                         test[0][3] = pose[3];
2756                         test[1][3] = pose[7];
2757                         test[2][3] = pose[11];
2758 }
2759 #endif
2760                         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]));
2761                         if (l > 0)
2762                                 outbufferpos += l;
2763                 }
2764         }
2765         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
2766         if (l > 0)
2767                 outbufferpos += l;
2768         if (writetriangles)
2769         {
2770                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "triangles\n");
2771                 if (l > 0)
2772                         outbufferpos += l;
2773                 for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
2774                 {
2775                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
2776                         {
2777                                 counttriangles++;
2778                                 if (outbufferpos >= outbuffermax >> 1)
2779                                 {
2780                                         outbuffermax *= 2;
2781                                         oldbuffer = outbuffer;
2782                                         outbuffer = (char *) Z_Malloc(outbuffermax);
2783                                         memcpy(outbuffer, oldbuffer, outbufferpos);
2784                                         Z_Free(oldbuffer);
2785                                 }
2786                                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%s\n", surface->texture && surface->texture->name[0] ? surface->texture->name : "default.bmp");
2787                                 if (l > 0)
2788                                         outbufferpos += l;
2789                                 for (cornerindex = 0;cornerindex < 3;cornerindex++)
2790                                 {
2791                                         const int index = e[2-cornerindex];
2792                                         const float *v = model->surfmesh.data_vertex3f + index * 3;
2793                                         const float *vn = model->surfmesh.data_normal3f + index * 3;
2794                                         const float *vt = model->surfmesh.data_texcoordtexture2f + index * 2;
2795                                         const int *wi = model->surfmesh.data_vertexweightindex4i + index * 4;
2796                                         const float *wf = model->surfmesh.data_vertexweightinfluence4f + index * 4;
2797                                              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]);
2798                                         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]);
2799                                         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]);
2800                                         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]);
2801                                         if (l > 0)
2802                                                 outbufferpos += l;
2803                                 }
2804                         }
2805                 }
2806                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
2807                 if (l > 0)
2808                         outbufferpos += l;
2809         }
2810
2811         FS_WriteFile(filename, outbuffer, outbufferpos);
2812         Z_Free(outbuffer);
2813
2814         Con_Printf("Wrote %s (%i bytes, %i nodes, %i frames, %i triangles)\n", filename, (int)outbufferpos, countnodes, countframes, counttriangles);
2815 }
2816
2817 /*
2818 ================
2819 Mod_Decompile_f
2820
2821 decompiles a model to editable files
2822 ================
2823 */
2824 static void Mod_Decompile_f(void)
2825 {
2826         int i, j, k, l, first, count;
2827         dp_model_t *mod;
2828         char inname[MAX_QPATH];
2829         char outname[MAX_QPATH];
2830         char mtlname[MAX_QPATH];
2831         char basename[MAX_QPATH];
2832         char animname[MAX_QPATH];
2833         char animname2[MAX_QPATH];
2834         char zymtextbuffer[16384];
2835         char dpmtextbuffer[16384];
2836         int zymtextsize = 0;
2837         int dpmtextsize = 0;
2838
2839         if (Cmd_Argc() != 2)
2840         {
2841                 Con_Print("usage: modeldecompile <filename>\n");
2842                 return;
2843         }
2844
2845         strlcpy(inname, Cmd_Argv(1), sizeof(inname));
2846         FS_StripExtension(inname, basename, sizeof(basename));
2847
2848         mod = Mod_ForName(inname, false, true, inname[0] == '*' ? cl.model_name[1] : NULL);
2849         if (mod->brush.submodel)
2850         {
2851                 // if we're decompiling a submodel, be sure to give it a proper name based on its parent
2852                 FS_StripExtension(cl.model_name[1], outname, sizeof(outname));
2853                 dpsnprintf(basename, sizeof(basename), "%s/%s", outname, mod->name);
2854                 outname[0] = 0;
2855         }
2856         if (!mod)
2857         {
2858                 Con_Print("No such model\n");
2859                 return;
2860         }
2861         if (!mod->surfmesh.num_triangles)
2862         {
2863                 Con_Print("Empty model (or sprite)\n");
2864                 return;
2865         }
2866
2867         // export OBJ if possible (not on sprites)
2868         if (mod->surfmesh.num_triangles)
2869         {
2870                 dpsnprintf(outname, sizeof(outname), "%s_decompiled.obj", basename);
2871                 dpsnprintf(mtlname, sizeof(mtlname), "%s_decompiled.mtl", basename);
2872                 Mod_Decompile_OBJ(mod, outname, mtlname, inname);
2873         }
2874
2875         // export SMD if possible (only for skeletal models)
2876         if (mod->surfmesh.num_triangles && mod->num_bones)
2877         {
2878                 dpsnprintf(outname, sizeof(outname), "%s_decompiled/ref1.smd", basename);
2879                 Mod_Decompile_SMD(mod, outname, 0, 1, true);
2880                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "output out.zym\nscale 1\norigin 0 0 0\nmesh ref1.smd\n");
2881                 if (l > 0) zymtextsize += l;
2882                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "outputdir .\nmodel out\nscale 1\norigin 0 0 0\nscene ref1.smd\n");
2883                 if (l > 0) dpmtextsize += l;
2884                 for (i = 0;i < mod->numframes;i = j)
2885                 {
2886                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
2887                         first = mod->animscenes[i].firstframe;
2888                         if (mod->animscenes[i].framecount > 1)
2889                         {
2890                                 // framegroup anim
2891                                 count = mod->animscenes[i].framecount;
2892                                 j = i + 1;
2893                         }
2894                         else
2895                         {
2896                                 // individual frame
2897                                 // check for additional frames with same name
2898                                 for (l = 0, k = strlen(animname);animname[l];l++)
2899                                         if ((animname[l] < '0' || animname[l] > '9') && animname[l] != '_')
2900                                                 k = l + 1;
2901                                 animname[k] = 0;
2902                                 count = mod->num_poses - first;
2903                                 for (j = i + 1;j < mod->numframes;j++)
2904                                 {
2905                                         strlcpy(animname2, mod->animscenes[j].name, sizeof(animname2));
2906                                         for (l = 0, k = strlen(animname2);animname2[l];l++)
2907                                                 if ((animname2[l] < '0' || animname2[l] > '9') && animname2[l] != '_')
2908                                                         k = l + 1;
2909                                         animname2[k] = 0;
2910                                         if (strcmp(animname2, animname) || mod->animscenes[j].framecount > 1)
2911                                         {
2912                                                 count = mod->animscenes[j].firstframe - first;
2913                                                 break;
2914                                         }
2915                                 }
2916                                 // if it's only one frame, use the original frame name
2917                                 if (j == i + 1)
2918                                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
2919
2920                         }
2921                         dpsnprintf(outname, sizeof(outname), "%s_decompiled/%s.smd", basename, animname);
2922                         Mod_Decompile_SMD(mod, outname, first, count, false);
2923                         if (zymtextsize < (int)sizeof(zymtextbuffer) - 100)
2924                         {
2925                                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "scene %s.smd fps %g\n", animname, mod->animscenes[i].framerate);
2926                                 if (l > 0) zymtextsize += l;
2927                         }
2928                         if (dpmtextsize < (int)sizeof(dpmtextbuffer) - 100)
2929                         {
2930                                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "scene %s.smd\n", animname);
2931                                 if (l > 0) dpmtextsize += l;
2932                         }
2933                 }
2934                 if (zymtextsize)
2935                         FS_WriteFile(va("%s_decompiled/out_zym.txt", basename), zymtextbuffer, (fs_offset_t)zymtextsize);
2936                 if (dpmtextsize)
2937                         FS_WriteFile(va("%s_decompiled/out_dpm.txt", basename), dpmtextbuffer, (fs_offset_t)dpmtextsize);
2938         }
2939 }
2940
2941 void Mod_AllocLightmap_Init(mod_alloclightmap_state_t *state, int width, int height)
2942 {
2943         int y;
2944         memset(state, 0, sizeof(*state));
2945         state->width = width;
2946         state->height = height;
2947         state->currentY = 0;
2948         state->rows = Mem_Alloc(loadmodel->mempool, state->height * sizeof(*state->rows));
2949         for (y = 0;y < state->height;y++)
2950         {
2951                 state->rows[y].currentX = 0;
2952                 state->rows[y].rowY = -1;
2953         }
2954 }
2955
2956 void Mod_AllocLightmap_Reset(mod_alloclightmap_state_t *state)
2957 {
2958         int y;
2959         state->currentY = 0;
2960         for (y = 0;y < state->height;y++)
2961         {
2962                 state->rows[y].currentX = 0;
2963                 state->rows[y].rowY = -1;
2964         }
2965 }
2966
2967 void Mod_AllocLightmap_Free(mod_alloclightmap_state_t *state)
2968 {
2969         if (state->rows)
2970                 Mem_Free(state->rows);
2971         memset(state, 0, sizeof(*state));
2972 }
2973
2974 qboolean Mod_AllocLightmap_Block(mod_alloclightmap_state_t *state, int blockwidth, int blockheight, int *outx, int *outy)
2975 {
2976         mod_alloclightmap_row_t *row;
2977         int y;
2978
2979         row = state->rows + blockheight;
2980         if ((row->rowY < 0) || (row->currentX + blockwidth > state->width))
2981         {
2982                 if (state->currentY + blockheight <= state->height)
2983                 {
2984                         // use the current allocation position
2985                         row->rowY = state->currentY;
2986                         row->currentX = 0;
2987                         state->currentY += blockheight;
2988                 }
2989                 else
2990                 {
2991                         // find another position
2992                         for (y = blockheight;y < state->height;y++)
2993                         {
2994                                 if ((state->rows[y].rowY >= 0) && (state->rows[y].currentX + blockwidth <= state->width))
2995                                 {
2996                                         row = state->rows + y;
2997                                         break;
2998                                 }
2999                         }
3000                         if (y == state->height)
3001                                 return false;
3002                 }
3003         }
3004         *outy = row->rowY;
3005         *outx = row->currentX;
3006         row->currentX += blockwidth;
3007
3008         return true;
3009 }
3010
3011 typedef struct lightmapsample_s
3012 {
3013         float pos[3];
3014         float sh1[4][3];
3015         float *vertex_color;
3016         unsigned char *lm_bgr;
3017         unsigned char *lm_dir;
3018 }
3019 lightmapsample_t;
3020
3021 typedef struct lightmapvertex_s
3022 {
3023         int index;
3024         float pos[3];
3025         float normal[3];
3026         float texcoordbase[2];
3027         float texcoordlightmap[2];
3028         float lightcolor[4];
3029 }
3030 lightmapvertex_t;
3031
3032 typedef struct lightmaptriangle_s
3033 {
3034         int triangleindex;
3035         int surfaceindex;
3036         int lightmapindex;
3037         int axis;
3038         int lmoffset[2];
3039         int lmsize[2];
3040         // 2D modelspace coordinates of min corner
3041         // snapped to lightmap grid but not in grid coordinates
3042         float lmbase[2];
3043         // 2D modelspace to lightmap coordinate scale
3044         float lmscale[2];
3045         float vertex[3][3];
3046         float mins[3];
3047         float maxs[3];
3048 }
3049 lightmaptriangle_t;
3050
3051 typedef struct lightmaplight_s
3052 {
3053         float origin[3];
3054         float radius;
3055         float iradius;
3056         float radius2;
3057         float color[3];
3058         svbsp_t svbsp;
3059 }
3060 lightmaplight_t;
3061
3062 lightmaptriangle_t *mod_generatelightmaps_lightmaptriangles;
3063
3064 #define MAX_LIGHTMAPSAMPLES 64
3065 static int mod_generatelightmaps_numoffsets[3];
3066 static float mod_generatelightmaps_offsets[3][MAX_LIGHTMAPSAMPLES][3];
3067
3068 static int mod_generatelightmaps_numlights;
3069 static lightmaplight_t *mod_generatelightmaps_lightinfo;
3070
3071 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(const dp_model_t *model, svbsp_t *svbsp, const float *mins, const float *maxs)
3072 {
3073         int surfaceindex;
3074         int triangleindex;
3075         const msurface_t *surface;
3076         const float *vertex3f = model->surfmesh.data_vertex3f;
3077         const int *element3i = model->surfmesh.data_element3i;
3078         const int *e;
3079         float v2[3][3];
3080         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->nummodelsurfaces;surfaceindex++, surface++)
3081         {
3082                 if (!BoxesOverlap(surface->mins, surface->maxs, mins, maxs))
3083                         continue;
3084                 if (R_GetCurrentTexture(surface->texture)->currentmaterialflags & MATERIALFLAG_NOSHADOW)
3085                         continue;
3086                 for (triangleindex = 0, e = element3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3087                 {
3088                         VectorCopy(vertex3f + 3*e[0], v2[0]);
3089                         VectorCopy(vertex3f + 3*e[1], v2[1]);
3090                         VectorCopy(vertex3f + 3*e[2], v2[2]);
3091                         SVBSP_AddPolygon(svbsp, 3, v2[0], true, NULL, NULL, 0);
3092                 }
3093         }
3094 }
3095
3096 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(dp_model_t *model, lightmaplight_t *lightinfo)
3097 {
3098         int maxnodes = 1<<14;
3099         svbsp_node_t *nodes;
3100         float origin[3];
3101         float mins[3];
3102         float maxs[3];
3103         svbsp_t svbsp;
3104         VectorSet(mins, lightinfo->origin[0] - lightinfo->radius, lightinfo->origin[1] - lightinfo->radius, lightinfo->origin[2] - lightinfo->radius);
3105         VectorSet(maxs, lightinfo->origin[0] + lightinfo->radius, lightinfo->origin[1] + lightinfo->radius, lightinfo->origin[2] + lightinfo->radius);
3106         VectorCopy(lightinfo->origin, origin);
3107         nodes = Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3108         for (;;)
3109         {
3110                 SVBSP_Init(&svbsp, origin, maxnodes, nodes);
3111                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(model, &svbsp, mins, maxs);
3112                 if (svbsp.ranoutofnodes)
3113                 {
3114                         maxnodes *= 2;
3115                         if (maxnodes >= 1<<22)
3116                         {
3117                                 Mem_Free(nodes);
3118                                 return;
3119                         }
3120                         Mem_Free(nodes);
3121                         nodes = Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3122                 }
3123                 else
3124                         break;
3125         }
3126         if (svbsp.numnodes > 0)
3127         {
3128                 svbsp.nodes = Mem_Alloc(tempmempool, svbsp.numnodes * sizeof(*nodes));
3129                 memcpy(svbsp.nodes, nodes, svbsp.numnodes * sizeof(*nodes));
3130                 lightinfo->svbsp = svbsp;
3131         }
3132         Mem_Free(nodes);
3133 }
3134
3135 extern int R_Shadow_GetRTLightInfo(unsigned int lightindex, float *origin, float *radius, float *color);
3136 static void Mod_GenerateLightmaps_CreateLights(dp_model_t *model)
3137 {
3138         int index;
3139         int result;
3140         lightmaplight_t *lightinfo;
3141         float origin[3];
3142         float radius;
3143         float color[3];
3144         mod_generatelightmaps_numlights = 0;
3145         for (index = 0;;index++)
3146         {
3147                 result = R_Shadow_GetRTLightInfo(index, origin, &radius, color);
3148                 if (result < 0)
3149                         break;
3150                 if (result > 0)
3151                         mod_generatelightmaps_numlights++;
3152         }
3153         if (mod_generatelightmaps_numlights > 0)
3154         {
3155                 mod_generatelightmaps_lightinfo = Mem_Alloc(tempmempool, mod_generatelightmaps_numlights * sizeof(*mod_generatelightmaps_lightinfo));
3156                 lightinfo = mod_generatelightmaps_lightinfo;
3157                 for (index = 0;;index++)
3158                 {
3159                         result = R_Shadow_GetRTLightInfo(index, lightinfo->origin, &lightinfo->radius, lightinfo->color);
3160                         if (result < 0)
3161                                 break;
3162                         if (result > 0)
3163                                 lightinfo++;
3164                 }
3165         }
3166         for (index = 0, lightinfo = mod_generatelightmaps_lightinfo;index < mod_generatelightmaps_numlights;index++, lightinfo++)
3167         {
3168                 lightinfo->iradius = 1.0f / lightinfo->radius;
3169                 lightinfo->radius2 = lightinfo->radius * lightinfo->radius;
3170                 // TODO: compute svbsp
3171                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(model, lightinfo);
3172         }
3173 }
3174
3175 static void Mod_GenerateLightmaps_DestroyLights(dp_model_t *model)
3176 {
3177         int i;
3178         if (mod_generatelightmaps_lightinfo)
3179         {
3180                 for (i = 0;i < mod_generatelightmaps_numlights;i++)
3181                         if (mod_generatelightmaps_lightinfo[i].svbsp.nodes)
3182                                 Mem_Free(mod_generatelightmaps_lightinfo[i].svbsp.nodes);
3183                 Mem_Free(mod_generatelightmaps_lightinfo);
3184         }
3185         mod_generatelightmaps_lightinfo = NULL;
3186         mod_generatelightmaps_numlights = 0;
3187 }
3188
3189 static qboolean Mod_GenerateLightmaps_SamplePoint_SVBSP(const svbsp_t *svbsp, const float *pos)
3190 {
3191         const svbsp_node_t *node;
3192         const svbsp_node_t *nodes = svbsp->nodes;
3193         int num = 0;
3194         while (num >= 0)
3195         {
3196                 node = nodes + num;
3197                 num = node->children[DotProduct(node->plane, pos) < node->plane[3]];
3198         }
3199         return num == -1; // true if empty, false if solid (shadowed)
3200 }
3201
3202 extern cvar_t r_shadow_lightattenuationdividebias;
3203 extern cvar_t r_shadow_lightattenuationlinearscale;
3204 static void Mod_GenerateLightmaps_SamplePoint(const float *pos, const float *normal, float *sample, int numoffsets, const float *offsets)
3205 {
3206         int i;
3207         float relativepoint[3];
3208         float color[3];
3209         float offsetpos[3];
3210         float dist;
3211         float dist2;
3212         float intensity;
3213         int offsetindex;
3214         int hits;
3215         int tests;
3216         const lightmaplight_t *lightinfo;
3217         trace_t trace;
3218         for (i = 0;i < 5*3;i++)
3219                 sample[i] = 0.0f;
3220         for (i = 0, lightinfo = mod_generatelightmaps_lightinfo;i < mod_generatelightmaps_numlights;i++, lightinfo++)
3221         {
3222                 //R_SampleRTLights(pos, sample, numoffsets, offsets);
3223                 VectorSubtract(lightinfo->origin, pos, relativepoint);
3224                 // don't accept light from behind a surface, it causes bad shading
3225                 if (normal && DotProduct(relativepoint, normal) <= 0)
3226                         continue;
3227                 dist2 = VectorLength2(relativepoint);
3228                 if (dist2 >= lightinfo->radius2)
3229                         continue;
3230                 dist = sqrt(dist2) * lightinfo->iradius;
3231                 intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
3232                 if (intensity <= 0)
3233                         continue;
3234                 if (cl.worldmodel && cl.worldmodel->TraceLine && numoffsets > 0)
3235                 {
3236                         hits = 0;
3237                         tests = 1;
3238                         if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, pos))
3239                                 hits++;
3240                         for (offsetindex = 1;offsetindex < numoffsets;offsetindex++)
3241                         {
3242                                 VectorAdd(pos, offsets + 3*offsetindex, offsetpos);
3243                                 if (!normal)
3244                                 {
3245                                         // for light grid we'd better check visibility of the offset point
3246                                         cl.worldmodel->TraceLine(cl.worldmodel, NULL, NULL, &trace, pos, offsetpos, SUPERCONTENTS_VISBLOCKERMASK);
3247                                         if (trace.fraction < 1)
3248                                                 VectorLerp(pos, trace.fraction, offsetpos, offsetpos);
3249                                 }
3250                                 tests++;
3251                                 if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, offsetpos))
3252                                         hits++;
3253                         }
3254                         if (!hits)
3255                                 continue;
3256                         // scale intensity according to how many rays succeeded
3257                         // we know one test is valid, half of the rest will fail...
3258                         //if (normal && tests > 1)
3259                         //      intensity *= (tests - 1.0f) / tests;
3260                         intensity *= (float)hits / tests;
3261                 }
3262                 // scale down intensity to add to both ambient and diffuse
3263                 //intensity *= 0.5f;
3264                 VectorNormalize(relativepoint);
3265                 VectorScale(lightinfo->color, intensity, color);
3266                 VectorMA(sample    , 0.5f            , color, sample    );
3267                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3268                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3269                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3270                 // calculate a weighted average light direction as well
3271                 intensity *= VectorLength(color);
3272                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3273         }
3274 }
3275
3276 static void Mod_GenerateLightmaps_LightmapSample(const float *pos, const float *normal, unsigned char *lm_bgr, unsigned char *lm_dir)
3277 {
3278         float sample[5*3];
3279         float color[3];
3280         float dir[3];
3281         float f;
3282         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[0], mod_generatelightmaps_offsets[0][0]);
3283         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3284         VectorCopy(sample + 12, dir);
3285         VectorNormalize(dir);
3286         //VectorAdd(dir, normal, dir);
3287         //VectorNormalize(dir);
3288         f = DotProduct(dir, normal);
3289         f = max(0, f) * 255.0f;
3290         VectorScale(sample, f, color);
3291         //VectorCopy(normal, dir);
3292         VectorSet(dir, (dir[0]+1.0f)*127.5f, (dir[1]+1.0f)*127.5f, (dir[2]+1.0f)*127.5f);
3293         lm_bgr[0] = (unsigned char)bound(0.0f, color[2], 255.0f);
3294         lm_bgr[1] = (unsigned char)bound(0.0f, color[1], 255.0f);
3295         lm_bgr[2] = (unsigned char)bound(0.0f, color[0], 255.0f);
3296         lm_bgr[3] = 255;
3297         lm_dir[0] = (unsigned char)dir[2];
3298         lm_dir[1] = (unsigned char)dir[1];
3299         lm_dir[2] = (unsigned char)dir[0];
3300         lm_dir[3] = 255;
3301 }
3302
3303 static void Mod_GenerateLightmaps_VertexSample(const float *pos, const float *normal, float *vertex_color)
3304 {
3305         float sample[5*3];
3306         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[1], mod_generatelightmaps_offsets[1][0]);
3307         VectorCopy(sample, vertex_color);
3308 }
3309
3310 static void Mod_GenerateLightmaps_GridSample(const float *pos, q3dlightgrid_t *s)
3311 {
3312         float sample[5*3];
3313         float ambient[3];
3314         float diffuse[3];
3315         float dir[3];
3316         Mod_GenerateLightmaps_SamplePoint(pos, NULL, sample, mod_generatelightmaps_numoffsets[2], mod_generatelightmaps_offsets[2][0]);
3317         // calculate the direction we'll use to reduce the sample to a directional light source
3318         VectorCopy(sample + 12, dir);
3319         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3320         VectorNormalize(dir);
3321         // extract the diffuse color along the chosen direction and scale it
3322         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]) * 127.5f;
3323         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]) * 127.5f;
3324         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]) * 127.5f;
3325         // scale the ambient from 0-2 to 0-255 and subtract some of diffuse
3326         VectorScale(sample, 127.5f, ambient);
3327         VectorMA(ambient, -0.333f, diffuse, ambient);
3328         // encode to the grid format
3329         s->ambientrgb[0] = (unsigned char)bound(0.0f, ambient[0], 255.0f);
3330         s->ambientrgb[1] = (unsigned char)bound(0.0f, ambient[1], 255.0f);
3331         s->ambientrgb[2] = (unsigned char)bound(0.0f, ambient[2], 255.0f);
3332         s->diffusergb[0] = (unsigned char)bound(0.0f, diffuse[0], 255.0f);
3333         s->diffusergb[1] = (unsigned char)bound(0.0f, diffuse[1], 255.0f);
3334         s->diffusergb[2] = (unsigned char)bound(0.0f, diffuse[2], 255.0f);
3335         if (dir[2] >= 0.99f) {s->diffusepitch = 0;s->diffuseyaw = 0;}
3336         else if (dir[2] <= -0.99f) {s->diffusepitch = 128;s->diffuseyaw = 0;}
3337         else {s->diffusepitch = (unsigned char)(acos(dir[2]) * (127.5f/M_PI));s->diffuseyaw = (unsigned char)(atan2(dir[1], dir[0]) * (127.5f/M_PI));}
3338 }
3339
3340 static void Mod_GenerateLightmaps_InitSampleOffsets(dp_model_t *model)
3341 {
3342         float radius[3];
3343         float temp[3];
3344         int i, j;
3345         memset(mod_generatelightmaps_offsets, 0, sizeof(mod_generatelightmaps_offsets));
3346         mod_generatelightmaps_numoffsets[0] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_lightmapsamples.integer);
3347         mod_generatelightmaps_numoffsets[1] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_vertexsamples.integer);
3348         mod_generatelightmaps_numoffsets[2] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_gridsamples.integer);
3349         radius[0] = mod_generatelightmaps_lightmapradius.value;
3350         radius[1] = mod_generatelightmaps_vertexradius.value;
3351         radius[2] = mod_generatelightmaps_gridradius.value;
3352         for (i = 0;i < 3;i++)
3353         {
3354                 for (j = 1;j < mod_generatelightmaps_numoffsets[i];j++)
3355                 {
3356                         VectorRandom(temp);
3357                         VectorScale(temp, radius[i], mod_generatelightmaps_offsets[i][j]);
3358                 }
3359         }
3360 }
3361
3362 static void Mod_GenerateLightmaps_DestroyLightmaps(dp_model_t *model)
3363 {
3364         msurface_t *surface;
3365         int surfaceindex;
3366         int i;
3367         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3368         {
3369                 surface = model->data_surfaces + surfaceindex;
3370                 surface->lightmaptexture = NULL;
3371                 surface->deluxemaptexture = NULL;
3372         }
3373         if (model->brushq3.data_lightmaps)
3374         {
3375                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3376                         R_FreeTexture(model->brushq3.data_lightmaps[i]);
3377                 Mem_Free(model->brushq3.data_lightmaps);
3378                 model->brushq3.data_lightmaps = NULL;
3379         }
3380         if (model->brushq3.data_deluxemaps)
3381         {
3382                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3383                         R_FreeTexture(model->brushq3.data_deluxemaps[i]);
3384                 Mem_Free(model->brushq3.data_deluxemaps);
3385                 model->brushq3.data_deluxemaps = NULL;
3386         }
3387 }
3388
3389 static void Mod_GenerateLightmaps_UnweldTriangles(dp_model_t *model)
3390 {
3391         msurface_t *surface;
3392         int surfaceindex;
3393         int vertexindex;
3394         int outvertexindex;
3395         int i;
3396         const int *e;
3397         surfmesh_t oldsurfmesh;
3398         size_t size;
3399         unsigned char *data;
3400         oldsurfmesh = model->surfmesh;
3401         model->surfmesh.num_triangles = oldsurfmesh.num_triangles;
3402         model->surfmesh.num_vertices = oldsurfmesh.num_triangles * 3;
3403         size = 0;
3404         size += model->surfmesh.num_vertices * sizeof(float[3]);
3405         size += model->surfmesh.num_vertices * sizeof(float[3]);
3406         size += model->surfmesh.num_vertices * sizeof(float[3]);
3407         size += model->surfmesh.num_vertices * sizeof(float[3]);
3408         size += model->surfmesh.num_vertices * sizeof(float[2]);
3409         size += model->surfmesh.num_vertices * sizeof(float[2]);
3410         size += model->surfmesh.num_vertices * sizeof(float[4]);
3411         data = (unsigned char *)Mem_Alloc(model->mempool, size);
3412         model->surfmesh.data_vertex3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3413         model->surfmesh.data_normal3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3414         model->surfmesh.data_svector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3415         model->surfmesh.data_tvector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3416         model->surfmesh.data_texcoordtexture2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
3417         model->surfmesh.data_texcoordlightmap2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
3418         model->surfmesh.data_lightmapcolor4f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[4]);
3419         if (model->surfmesh.num_vertices > 65536)
3420                 model->surfmesh.data_element3s = NULL;
3421
3422         if (model->surfmesh.vbo)
3423                 R_Mesh_DestroyBufferObject(model->surfmesh.vbo);
3424         model->surfmesh.vbo = 0;
3425         if (model->surfmesh.ebo3i)
3426                 R_Mesh_DestroyBufferObject(model->surfmesh.ebo3i);
3427         model->surfmesh.ebo3i = 0;
3428         if (model->surfmesh.ebo3s)
3429                 R_Mesh_DestroyBufferObject(model->surfmesh.ebo3s);
3430         model->surfmesh.ebo3s = 0;
3431
3432         // convert all triangles to unique vertex data
3433         outvertexindex = 0;
3434         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3435         {
3436                 surface = model->data_surfaces + surfaceindex;
3437                 surface->num_firstvertex = outvertexindex;
3438                 surface->num_vertices = surface->num_triangles*3;
3439                 e = oldsurfmesh.data_element3i + surface->num_firsttriangle*3;
3440                 for (i = 0;i < surface->num_triangles*3;i++)
3441                 {
3442                         vertexindex = e[i];
3443                         model->surfmesh.data_vertex3f[outvertexindex*3+0] = oldsurfmesh.data_vertex3f[vertexindex*3+0];
3444                         model->surfmesh.data_vertex3f[outvertexindex*3+1] = oldsurfmesh.data_vertex3f[vertexindex*3+1];
3445                         model->surfmesh.data_vertex3f[outvertexindex*3+2] = oldsurfmesh.data_vertex3f[vertexindex*3+2];
3446                         model->surfmesh.data_normal3f[outvertexindex*3+0] = oldsurfmesh.data_normal3f[vertexindex*3+0];
3447                         model->surfmesh.data_normal3f[outvertexindex*3+1] = oldsurfmesh.data_normal3f[vertexindex*3+1];
3448                         model->surfmesh.data_normal3f[outvertexindex*3+2] = oldsurfmesh.data_normal3f[vertexindex*3+2];
3449                         model->surfmesh.data_svector3f[outvertexindex*3+0] = oldsurfmesh.data_svector3f[vertexindex*3+0];
3450                         model->surfmesh.data_svector3f[outvertexindex*3+1] = oldsurfmesh.data_svector3f[vertexindex*3+1];
3451                         model->surfmesh.data_svector3f[outvertexindex*3+2] = oldsurfmesh.data_svector3f[vertexindex*3+2];
3452                         model->surfmesh.data_tvector3f[outvertexindex*3+0] = oldsurfmesh.data_tvector3f[vertexindex*3+0];
3453                         model->surfmesh.data_tvector3f[outvertexindex*3+1] = oldsurfmesh.data_tvector3f[vertexindex*3+1];
3454                         model->surfmesh.data_tvector3f[outvertexindex*3+2] = oldsurfmesh.data_tvector3f[vertexindex*3+2];
3455                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+0];
3456                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+1];
3457                         model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+0];
3458                         model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+1];
3459                         model->surfmesh.data_lightmapcolor4f[outvertexindex*4+0] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+0];
3460                         model->surfmesh.data_lightmapcolor4f[outvertexindex*4+1] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+1];
3461                         model->surfmesh.data_lightmapcolor4f[outvertexindex*4+2] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+2];
3462                         model->surfmesh.data_lightmapcolor4f[outvertexindex*4+3] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+3];
3463                         model->surfmesh.data_element3i[surface->num_firsttriangle*3+i] = outvertexindex;
3464                         outvertexindex++;
3465                 }
3466         }
3467         if (model->surfmesh.data_element3s)
3468                 for (i = 0;i < model->surfmesh.num_triangles*3;i++)
3469                         model->surfmesh.data_element3s[i] = model->surfmesh.data_element3i[i];
3470
3471         // find and update all submodels to use this new surfmesh data
3472         for (i = 0;i < model->brush.numsubmodels;i++)
3473                 model->brush.submodels[i]->surfmesh = model->surfmesh;
3474 }
3475
3476 static void Mod_GenerateLightmaps_CreateTriangleInformation(dp_model_t *model)
3477 {
3478         msurface_t *surface;
3479         int surfaceindex;
3480         int i;
3481         int axis;
3482         float normal[3];
3483         const int *e;
3484         lightmaptriangle_t *triangle;
3485         // generate lightmap triangle structs
3486         mod_generatelightmaps_lightmaptriangles = Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
3487         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3488         {
3489                 surface = model->data_surfaces + surfaceindex;
3490                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
3491                 for (i = 0;i < surface->num_triangles;i++)
3492                 {
3493                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
3494                         triangle->triangleindex = surface->num_firsttriangle+i;
3495                         triangle->surfaceindex = surfaceindex;
3496                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+0], triangle->vertex[0]);
3497                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+1], triangle->vertex[1]);
3498                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+2], triangle->vertex[2]);
3499                         // calculate bounds of triangle
3500                         triangle->mins[0] = min(triangle->vertex[0][0], min(triangle->vertex[1][0], triangle->vertex[2][0]));
3501                         triangle->mins[1] = min(triangle->vertex[0][1], min(triangle->vertex[1][1], triangle->vertex[2][1]));
3502                         triangle->mins[2] = min(triangle->vertex[0][2], min(triangle->vertex[1][2], triangle->vertex[2][2]));
3503                         triangle->maxs[0] = max(triangle->vertex[0][0], max(triangle->vertex[1][0], triangle->vertex[2][0]));
3504                         triangle->maxs[1] = max(triangle->vertex[0][1], max(triangle->vertex[1][1], triangle->vertex[2][1]));
3505                         triangle->maxs[2] = max(triangle->vertex[0][2], max(triangle->vertex[1][2], triangle->vertex[2][2]));
3506                         // pick an axial projection based on the triangle normal
3507                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], normal);
3508                         axis = 0;
3509                         if (fabs(normal[1]) > fabs(normal[axis]))
3510                                 axis = 1;
3511                         if (fabs(normal[2]) > fabs(normal[axis]))
3512                                 axis = 2;
3513                         triangle->axis = axis;
3514                 }
3515         }
3516 }
3517
3518 static void Mod_GenerateLightmaps_DestroyTriangleInformation(dp_model_t *model)
3519 {
3520         if (mod_generatelightmaps_lightmaptriangles)
3521                 Mem_Free(mod_generatelightmaps_lightmaptriangles);
3522         mod_generatelightmaps_lightmaptriangles = NULL;
3523 }
3524
3525 float lmaxis[3][3] = {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}};
3526
3527 static void Mod_GenerateLightmaps_CreateLightmaps(dp_model_t *model)
3528 {
3529         msurface_t *surface;
3530         int surfaceindex;
3531         int lightmapindex;
3532         int lightmapnumber;
3533         int i;
3534         int j;
3535         int k;
3536         int x;
3537         int y;
3538         int axis;
3539         int axis1;
3540         int axis2;
3541         int retry;
3542         int pixeloffset;
3543         float trianglenormal[3];
3544         float samplecenter[3];
3545         float samplenormal[3];
3546         float temp[3];
3547         float lmiscale[2];
3548         float slopex;
3549         float slopey;
3550         float slopebase;
3551         float lmscalepixels;
3552         float lmmins;
3553         float lmmaxs;
3554         float lm_basescalepixels;
3555         int lm_borderpixels;
3556         int lm_texturesize;
3557         int lm_maxpixels;
3558         const int *e;
3559         lightmaptriangle_t *triangle;
3560         unsigned char *lightmappixels;
3561         unsigned char *deluxemappixels;
3562         mod_alloclightmap_state_t lmstate;
3563
3564         // generate lightmap projection information for all triangles
3565         if (model->texturepool == NULL)
3566                 model->texturepool = R_AllocTexturePool();
3567         lm_basescalepixels = 1.0f / max(0.0001f, mod_generatelightmaps_unitspersample.value);
3568         lm_borderpixels = mod_generatelightmaps_borderpixels.integer;
3569         lm_texturesize = bound(lm_borderpixels*2+1, 64, (int)vid.maxtexturesize_2d);
3570         lm_maxpixels = lm_texturesize-(lm_borderpixels*2+1);
3571         Mod_AllocLightmap_Init(&lmstate, lm_texturesize, lm_texturesize);
3572         lightmapnumber = 0;
3573         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3574         {
3575                 surface = model->data_surfaces + surfaceindex;
3576                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
3577                 lmscalepixels = lm_basescalepixels;
3578                 for (retry = 0;retry < 30;retry++)
3579                 {
3580                         // after a couple failed attempts, degrade quality to make it fit
3581                         if (retry > 1)
3582                                 lmscalepixels *= 0.5f;
3583                         for (i = 0;i < surface->num_triangles;i++)
3584                         {
3585                                 triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
3586                                 triangle->lightmapindex = lightmapnumber;
3587                                 // calculate lightmap bounds in 3D pixel coordinates, limit size,
3588                                 // pick two planar axes for projection
3589                                 // lightmap coordinates here are in pixels
3590                                 // lightmap projections are snapped to pixel grid explicitly, such
3591                                 // that two neighboring triangles sharing an edge and projection
3592                                 // axis will have identical sampl espacing along their shared edge
3593                                 k = 0;
3594                                 for (j = 0;j < 3;j++)
3595                                 {
3596                                         if (j == triangle->axis)
3597                                                 continue;
3598                                         lmmins = floor(triangle->mins[j]*lmscalepixels)-lm_borderpixels;
3599                                         lmmaxs = floor(triangle->maxs[j]*lmscalepixels)+lm_borderpixels;
3600                                         triangle->lmsize[k] = (int)(lmmaxs-lmmins);
3601                                         triangle->lmbase[k] = lmmins/lmscalepixels;
3602                                         triangle->lmscale[k] = lmscalepixels;
3603                                         k++;
3604                                 }
3605                                 if (!Mod_AllocLightmap_Block(&lmstate, triangle->lmsize[0], triangle->lmsize[1], &triangle->lmoffset[0], &triangle->lmoffset[1]))
3606                                         break;
3607                         }
3608                         // if all fit in this texture, we're done with this surface
3609                         if (i == surface->num_triangles)
3610                                 break;
3611                         // if we haven't maxed out the lightmap size yet, we retry the
3612                         // entire surface batch...
3613                         if (lm_texturesize * 2 <= min(mod_generatelightmaps_texturesize.integer, (int)vid.maxtexturesize_2d))
3614                         {
3615                                 lm_texturesize *= 2;
3616                                 surfaceindex = -1;
3617                                 lightmapnumber = 0;
3618                                 Mod_AllocLightmap_Free(&lmstate);
3619                                 Mod_AllocLightmap_Init(&lmstate, lm_texturesize, lm_texturesize);
3620                                 break;
3621                         }
3622                         // if we have maxed out the lightmap size, and this triangle does
3623                         // not fit in the same texture as the rest of the surface, we have
3624                         // to retry the entire surface in a new texture (can only use one)
3625                         // with multiple retries, the lightmap quality degrades until it
3626                         // fits (or gives up)
3627                         if (surfaceindex > 0)
3628                                 lightmapnumber++;
3629                         Mod_AllocLightmap_Reset(&lmstate);
3630                 }
3631         }
3632         lightmapnumber++;
3633         Mod_AllocLightmap_Free(&lmstate);
3634
3635         // now together lightmap textures
3636         model->brushq3.deluxemapping_modelspace = true;
3637         model->brushq3.deluxemapping = true;
3638         model->brushq3.num_mergedlightmaps = lightmapnumber;
3639         model->brushq3.data_lightmaps = Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
3640         model->brushq3.data_deluxemaps = Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
3641         lightmappixels = Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
3642         deluxemappixels = Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
3643         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3644         {
3645                 surface = model->data_surfaces + surfaceindex;
3646                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
3647                 for (i = 0;i < surface->num_triangles;i++)
3648                 {
3649                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
3650                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], trianglenormal);
3651                         VectorNormalize(trianglenormal);
3652                         VectorCopy(trianglenormal, samplenormal); // FIXME: this is supposed to be interpolated per pixel from vertices
3653                         axis = triangle->axis;
3654                         axis1 = axis == 0 ? 1 : 0;
3655                         axis2 = axis == 2 ? 1 : 2;
3656                         lmiscale[0] = 1.0f / triangle->lmscale[0];
3657                         lmiscale[1] = 1.0f / triangle->lmscale[1];
3658                         if (trianglenormal[axis] < 0)
3659                                 VectorNegate(trianglenormal, trianglenormal);
3660                         CrossProduct(lmaxis[axis2], trianglenormal, temp);slopex = temp[axis] / temp[axis1];
3661                         CrossProduct(lmaxis[axis1], trianglenormal, temp);slopey = temp[axis] / temp[axis2];
3662                         slopebase = triangle->vertex[0][axis] - triangle->vertex[0][axis1]*slopex - triangle->vertex[0][axis2]*slopey;
3663                         for (j = 0;j < 3;j++)
3664                         {
3665                                 float *t2f = model->surfmesh.data_texcoordlightmap2f + e[i*3+j]*2;
3666                                 t2f[0] = ((triangle->vertex[j][axis1] - triangle->lmbase[0]) * triangle->lmscale[0] + triangle->lmoffset[0]) / lm_texturesize;
3667                                 t2f[1] = ((triangle->vertex[j][axis2] - triangle->lmbase[1]) * triangle->lmscale[1] + triangle->lmoffset[1]) / lm_texturesize;
3668 #if 0
3669                                 samplecenter[axis1] = (t2f[0]*lm_texturesize-triangle->lmoffset[0])*lmiscale[0] + triangle->lmbase[0];
3670                                 samplecenter[axis2] = (t2f[1]*lm_texturesize-triangle->lmoffset[1])*lmiscale[1] + triangle->lmbase[1];
3671                                 samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
3672                                 Con_Printf("%f:%f %f:%f %f:%f = %f %f\n", triangle->vertex[j][axis1], samplecenter[axis1], triangle->vertex[j][axis2], samplecenter[axis2], triangle->vertex[j][axis], samplecenter[axis], t2f[0], t2f[1]);
3673 #endif
3674                         }
3675
3676 #if 0
3677                         switch (axis)
3678                         {
3679                         default:
3680                         case 0:
3681                                 forward[0] = 0;
3682                                 forward[1] = 1.0f / triangle->lmscale[0];
3683                                 forward[2] = 0;
3684                                 left[0] = 0;
3685                                 left[1] = 0;
3686                                 left[2] = 1.0f / triangle->lmscale[1];
3687                                 up[0] = 1.0f;
3688                                 up[1] = 0;
3689                                 up[2] = 0;
3690                                 origin[0] = 0;
3691                                 origin[1] = triangle->lmbase[0];
3692                                 origin[2] = triangle->lmbase[1];
3693                                 break;
3694                         case 1:
3695                                 forward[0] = 1.0f / triangle->lmscale[0];
3696                                 forward[1] = 0;
3697                                 forward[2] = 0;
3698                                 left[0] = 0;
3699                                 left[1] = 0;
3700                                 left[2] = 1.0f / triangle->lmscale[1];
3701                                 up[0] = 0;
3702                                 up[1] = 1.0f;
3703                                 up[2] = 0;
3704                                 origin[0] = triangle->lmbase[0];
3705                                 origin[1] = 0;
3706                                 origin[2] = triangle->lmbase[1];
3707                                 break;
3708                         case 2:
3709                                 forward[0] = 1.0f / triangle->lmscale[0];
3710                                 forward[1] = 0;
3711                                 forward[2] = 0;
3712                                 left[0] = 0;
3713                                 left[1] = 1.0f / triangle->lmscale[1];
3714                                 left[2] = 0;
3715                                 up[0] = 0;
3716                                 up[1] = 0;
3717                                 up[2] = 1.0f;
3718                                 origin[0] = triangle->lmbase[0];
3719                                 origin[1] = triangle->lmbase[1];
3720                                 origin[2] = 0;
3721                                 break;
3722                         }
3723                         Matrix4x4_FromVectors(&backmatrix, forward, left, up, origin);
3724 #endif
3725 #define LM_DIST_EPSILON (1.0f / 32.0f)
3726                         for (y = 0;y < triangle->lmsize[1];y++)
3727                         {
3728                                 pixeloffset = ((triangle->lightmapindex * lm_texturesize + y + triangle->lmoffset[1]) * lm_texturesize + triangle->lmoffset[0]) * 4;
3729                                 for (x = 0;x < triangle->lmsize[0];x++, pixeloffset += 4)
3730                                 {
3731                                         samplecenter[axis1] = (x+0.5f)*lmiscale[0] + triangle->lmbase[0];
3732                                         samplecenter[axis2] = (y+0.5f)*lmiscale[1] + triangle->lmbase[1];
3733                                         samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
3734                                         VectorMA(samplecenter, 0.125f, samplenormal, samplecenter);
3735                                         Mod_GenerateLightmaps_LightmapSample(samplecenter, samplenormal, lightmappixels + pixeloffset, deluxemappixels + pixeloffset);
3736                                 }
3737                         }
3738                 }
3739         }
3740
3741         for (lightmapindex = 0;lightmapindex < model->brushq3.num_mergedlightmaps;lightmapindex++)
3742         {
3743                 model->brushq3.data_lightmaps[lightmapindex] = R_LoadTexture2D(model->texturepool, va("lightmap%i", lightmapindex), lm_texturesize, lm_texturesize, lightmappixels + lightmapindex * lm_texturesize * lm_texturesize * 4, TEXTYPE_BGRA, TEXF_FORCELINEAR, NULL);
3744                 model->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(model->texturepool, va("deluxemap%i", lightmapindex), lm_texturesize, lm_texturesize, deluxemappixels + lightmapindex * lm_texturesize * lm_texturesize * 4, TEXTYPE_BGRA, TEXF_FORCELINEAR, NULL);
3745         }
3746
3747         if (lightmappixels)
3748                 Mem_Free(lightmappixels);
3749         if (deluxemappixels)
3750                 Mem_Free(deluxemappixels);
3751
3752         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3753         {
3754                 surface = model->data_surfaces + surfaceindex;
3755                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
3756                 if (!surface->num_triangles)
3757                         continue;
3758                 lightmapindex = mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle].lightmapindex;
3759                 surface->lightmaptexture = model->brushq3.data_lightmaps[lightmapindex];
3760                 surface->deluxemaptexture = model->brushq3.data_deluxemaps[lightmapindex];
3761         }
3762 }
3763
3764 static void Mod_GenerateLightmaps_UpdateVertexColors(dp_model_t *model)
3765 {
3766         int i;
3767         for (i = 0;i < model->surfmesh.num_vertices;i++)
3768                 Mod_GenerateLightmaps_VertexSample(model->surfmesh.data_vertex3f + 3*i, model->surfmesh.data_normal3f + 3*i, model->surfmesh.data_lightmapcolor4f + 4*i);
3769 }
3770
3771 static void Mod_GenerateLightmaps_UpdateLightGrid(dp_model_t *model)
3772 {
3773         int x;
3774         int y;
3775         int z;
3776         int index = 0;
3777         float pos[3];
3778         for (z = 0;z < model->brushq3.num_lightgrid_isize[2];z++)
3779         {
3780                 pos[2] = (model->brushq3.num_lightgrid_imins[2] + z + 0.5f) * model->brushq3.num_lightgrid_cellsize[2];
3781                 for (y = 0;y < model->brushq3.num_lightgrid_isize[1];y++)
3782                 {
3783                         pos[1] = (model->brushq3.num_lightgrid_imins[1] + y + 0.5f) * model->brushq3.num_lightgrid_cellsize[1];
3784                         for (x = 0;x < model->brushq3.num_lightgrid_isize[0];x++, index++)
3785                         {
3786                                 pos[0] = (model->brushq3.num_lightgrid_imins[0] + x + 0.5f) * model->brushq3.num_lightgrid_cellsize[0];
3787                                 Mod_GenerateLightmaps_GridSample(pos, model->brushq3.data_lightgrid + index);
3788                         }
3789                 }
3790         }
3791 }
3792
3793 extern cvar_t mod_q3bsp_nolightmaps;
3794 static void Mod_GenerateLightmaps(dp_model_t *model)
3795 {
3796         //lightmaptriangle_t *lightmaptriangles = Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
3797         dp_model_t *oldloadmodel = loadmodel;
3798         loadmodel = model;
3799
3800         Mod_GenerateLightmaps_InitSampleOffsets(model);
3801         Mod_GenerateLightmaps_DestroyLightmaps(model);
3802         Mod_GenerateLightmaps_UnweldTriangles(model);
3803         Mod_GenerateLightmaps_CreateTriangleInformation(model);
3804         Mod_GenerateLightmaps_CreateLights(model);
3805         if(!mod_q3bsp_nolightmaps.integer)
3806                 Mod_GenerateLightmaps_CreateLightmaps(model);
3807         Mod_GenerateLightmaps_UpdateVertexColors(model);
3808         Mod_GenerateLightmaps_UpdateLightGrid(model);
3809         Mod_GenerateLightmaps_DestroyLights(model);
3810         Mod_GenerateLightmaps_DestroyTriangleInformation(model);
3811
3812         loadmodel = oldloadmodel;
3813 }
3814
3815 static void Mod_GenerateLightmaps_f(void)
3816 {
3817         if (Cmd_Argc() != 1)
3818         {
3819                 Con_Printf("usage: mod_generatelightmaps\n");
3820                 return;
3821         }
3822         if (!cl.worldmodel)
3823         {
3824                 Con_Printf("no worldmodel loaded\n");
3825                 return;
3826         }
3827         Mod_GenerateLightmaps(cl.worldmodel);
3828 }