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         Mod_Skeletal_FreeBuffers();
  96 }
  97
  98 static void mod_newmap(void)
  99 {
 100         msurface_t *surface;
 101         int i, j, k, surfacenum, ssize, tsize;
 102         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 103         dp_model_t *mod;
 104
 105         for (i = 0;i < nummodels;i++)
 106         {
 107                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool)
 108                 {
 109                         for (j = 0;j < mod->num_textures && mod->data_textures;j++)
 110                         {
 111                                 for (k = 0;k < mod->data_textures[j].numskinframes;k++)
 112                                         R_SkinFrame_MarkUsed(mod->data_textures[j].skinframes[k]);
 113                                 for (k = 0;k < mod->data_textures[j].backgroundnumskinframes;k++)
 114                                         R_SkinFrame_MarkUsed(mod->data_textures[j].backgroundskinframes[k]);
 115                         }
 116                         if (mod->brush.solidskyskinframe)
 117                                 R_SkinFrame_MarkUsed(mod->brush.solidskyskinframe);
 118                         if (mod->brush.alphaskyskinframe)
 119                                 R_SkinFrame_MarkUsed(mod->brush.alphaskyskinframe);
 120                 }
 121         }
 122
 123         if (!cl_stainmaps_clearonload.integer)
 124                 return;
 125
 126         for (i = 0;i < nummodels;i++)
 127         {
 128                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool && mod->data_surfaces)
 129                 {
 130                         for (surfacenum = 0, surface = mod->data_surfaces;surfacenum < mod->num_surfaces;surfacenum++, surface++)
 131                         {
 132                                 if (surface->lightmapinfo && surface->lightmapinfo->stainsamples)
 133                                 {
 134                                         ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
 135                                         tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
 136                                         memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
 137                                         mod->brushq1.lightmapupdateflags[surfacenum] = true;
 138                                 }
 139                         }
 140                 }
 141         }
 142 }
 143
 144 /*
 145 ===============
 146 Mod_Init
 147 ===============
 148 */
 149 static void Mod_Print(void);
 150 static void Mod_Precache (void);
 151 static void Mod_Decompile_f(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 void Mod_FindPotentialDeforms(dp_model_t *mod)
 316 {
 317         int i, j;
 318         texture_t *texture;
 319         mod->wantnormals = false;
 320         mod->wanttangents = false;
 321         for (i = 0;i < mod->num_textures;i++)
 322         {
 323                 texture = mod->data_textures + i;
 324                 if (texture->tcgen.tcgen == Q3TCGEN_ENVIRONMENT)
 325                         mod->wantnormals = true;
 326                 for (j = 0;j < Q3MAXDEFORMS;j++)
 327                 {
 328                         if (texture->deforms[j].deform == Q3DEFORM_AUTOSPRITE)
 329                         {
 330                                 mod->wanttangents = true;
 331                                 mod->wantnormals = true;
 332                                 break;
 333                         }
 334                         if (texture->deforms[j].deform != Q3DEFORM_NONE)
 335                                 mod->wantnormals = true;
 336                 }
 337         }
 338 }
 339
 340 /*
 341 ==================
 342 Mod_LoadModel
 343
 344 Loads a model
 345 ==================
 346 */
 347 dp_model_t *Mod_LoadModel(dp_model_t *mod, qboolean crash, qboolean checkdisk)
 348 {
 349         int num;
 350         unsigned int crc;
 351         void *buf;
 352         fs_offset_t filesize;
 353
 354         mod->used = true;
 355
 356         if (mod->name[0] == '*') // submodel
 357                 return mod;
 358
 359         if (!strcmp(mod->name, "null"))
 360         {
 361                 if(mod->loaded)
 362                         return mod;
 363
 364                 if (mod->loaded || mod->mempool)
 365                         Mod_UnloadModel(mod);
 366
 367                 if (developer_loading.integer)
 368                         Con_Printf("loading model %s\n", mod->name);
 369
 370                 mod->used = true;
 371                 mod->crc = (unsigned int)-1;
 372                 mod->loaded = false;
 373
 374                 VectorClear(mod->normalmins);
 375                 VectorClear(mod->normalmaxs);
 376                 VectorClear(mod->yawmins);
 377                 VectorClear(mod->yawmaxs);
 378                 VectorClear(mod->rotatedmins);
 379                 VectorClear(mod->rotatedmaxs);
 380
 381                 mod->modeldatatypestring = "null";
 382                 mod->type = mod_null;
 383                 mod->Draw = R_Model_Null_Draw;
 384                 mod->numframes = 2;
 385                 mod->numskins = 1;
 386
 387                 // no fatal errors occurred, so this model is ready to use.
 388                 mod->loaded = true;
 389
 390                 return mod;
 391         }
 392
 393         crc = 0;
 394         buf = NULL;
 395
 396         // even if the model is loaded it still may need reloading...
 397
 398         // if it is not loaded or checkdisk is true we need to calculate the crc
 399         if (!mod->loaded || checkdisk)
 400         {
 401                 if (checkdisk && mod->loaded)
 402                         Con_DPrintf("checking model %s\n", mod->name);
 403                 buf = FS_LoadFile (mod->name, tempmempool, false, &filesize);
 404                 if (buf)
 405                 {
 406                         crc = CRC_Block((unsigned char *)buf, filesize);
 407                         // we need to reload the model if the crc does not match
 408                         if (mod->crc != crc)
 409                                 mod->loaded = false;
 410                 }
 411         }
 412
 413         // if the model is already loaded and checks passed, just return
 414         if (mod->loaded)
 415         {
 416                 if (buf)
 417                         Mem_Free(buf);
 418                 return mod;
 419         }
 420
 421         if (developer_loading.integer)
 422                 Con_Printf("loading model %s\n", mod->name);
 423
 424         SCR_PushLoadingScreen(true, mod->name, 1);
 425
 426         // LordHavoc: unload the existing model in this slot (if there is one)
 427         if (mod->loaded || mod->mempool)
 428                 Mod_UnloadModel(mod);
 429
 430         // load the model
 431         mod->used = true;
 432         mod->crc = crc;
 433         // errors can prevent the corresponding mod->loaded = true;
 434         mod->loaded = false;
 435
 436         // default model radius and bounding box (mainly for missing models)
 437         mod->radius = 16;
 438         VectorSet(mod->normalmins, -mod->radius, -mod->radius, -mod->radius);
 439         VectorSet(mod->normalmaxs, mod->radius, mod->radius, mod->radius);
 440         VectorSet(mod->yawmins, -mod->radius, -mod->radius, -mod->radius);
 441         VectorSet(mod->yawmaxs, mod->radius, mod->radius, mod->radius);
 442         VectorSet(mod->rotatedmins, -mod->radius, -mod->radius, -mod->radius);
 443         VectorSet(mod->rotatedmaxs, mod->radius, mod->radius, mod->radius);
 444
 445         if (!q3shaders_mem)
 446         {
 447                 // load q3 shaders for the first time, or after a level change
 448                 Mod_LoadQ3Shaders();
 449         }
 450
 451         if (buf)
 452         {
 453                 char *bufend = (char *)buf + filesize;
 454
 455                 // all models use memory, so allocate a memory pool
 456                 mod->mempool = Mem_AllocPool(mod->name, 0, NULL);
 457
 458                 num = LittleLong(*((int *)buf));
 459                 // call the apropriate loader
 460                 loadmodel = mod;
 461                 if (!strcasecmp(FS_FileExtension(mod->name), "obj")) Mod_OBJ_Load(mod, buf, bufend);
 462                 else if (!memcmp(buf, "IDPO", 4)) Mod_IDP0_Load(mod, buf, bufend);
 463                 else if (!memcmp(buf, "IDP2", 4)) Mod_IDP2_Load(mod, buf, bufend);
 464                 else if (!memcmp(buf, "IDP3", 4)) Mod_IDP3_Load(mod, buf, bufend);
 465                 else if (!memcmp(buf, "IDSP", 4)) Mod_IDSP_Load(mod, buf, bufend);
 466                 else if (!memcmp(buf, "IDS2", 4)) Mod_IDS2_Load(mod, buf, bufend);
 467                 else if (!memcmp(buf, "IBSP", 4)) Mod_IBSP_Load(mod, buf, bufend);
 468                 else if (!memcmp(buf, "ZYMOTICMODEL", 12)) Mod_ZYMOTICMODEL_Load(mod, buf, bufend);
 469                 else if (!memcmp(buf, "DARKPLACESMODEL", 16)) Mod_DARKPLACESMODEL_Load(mod, buf, bufend);
 470                 else if (!memcmp(buf, "ACTRHEAD", 8)) Mod_PSKMODEL_Load(mod, buf, bufend);
 471                 else if (!memcmp(buf, "INTERQUAKEMODEL", 16)) Mod_INTERQUAKEMODEL_Load(mod, buf, bufend);
 472                 else if (strlen(mod->name) >= 4 && !strcmp(mod->name + strlen(mod->name) - 4, ".map")) Mod_MAP_Load(mod, buf, bufend);
 473                 else if (num == BSPVERSION || num == 30) Mod_Q1BSP_Load(mod, buf, bufend);
 474                 else Con_Printf("Mod_LoadModel: model \"%s\" is of unknown/unsupported type\n", mod->name);
 475                 Mem_Free(buf);
 476
 477                 Mod_FindPotentialDeforms(mod);
 478
 479                 buf = FS_LoadFile (va("%s.framegroups", mod->name), tempmempool, false, &filesize);
 480                 if(buf)
 481                 {
 482                         Mod_FrameGroupify(mod, (const char *)buf);
 483                         Mem_Free(buf);
 484                 }
 485
 486                 Mod_BuildVBOs();
 487         }
 488         else if (crash)
 489         {
 490                 // LordHavoc: Sys_Error was *ANNOYING*
 491                 Con_Printf ("Mod_LoadModel: %s not found\n", mod->name);
 492         }
 493
 494         // no fatal errors occurred, so this model is ready to use.
 495         mod->loaded = true;
 496
 497         SCR_PopLoadingScreen(false);
 498
 499         return mod;
 500 }
 501
 502 void Mod_ClearUsed(void)
 503 {
 504         int i;
 505         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 506         dp_model_t *mod;
 507         for (i = 0;i < nummodels;i++)
 508                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0])
 509                         mod->used = false;
 510 }
 511
 512 void Mod_PurgeUnused(void)
 513 {
 514         int i;
 515         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 516         dp_model_t *mod;
 517         for (i = 0;i < nummodels;i++)
 518         {
 519                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !mod->used)
 520                 {
 521                         Mod_UnloadModel(mod);
 522                         Mem_ExpandableArray_FreeRecord(&models, mod);
 523                 }
 524         }
 525 }
 526
 527 /*
 528 ==================
 529 Mod_FindName
 530
 531 ==================
 532 */
 533 dp_model_t *Mod_FindName(const char *name, const char *parentname)
 534 {
 535         int i;
 536         int nummodels;
 537         dp_model_t *mod;
 538
 539         if (!parentname)
 540                 parentname = "";
 541
 542         // if we're not dedicatd, the renderer calls will crash without video
 543         Host_StartVideo();
 544
 545         nummodels = Mem_ExpandableArray_IndexRange(&models);
 546
 547         if (!name[0])
 548                 Host_Error ("Mod_ForName: NULL name");
 549
 550         // search the currently loaded models
 551         for (i = 0;i < nummodels;i++)
 552         {
 553                 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))))
 554                 {
 555                         mod->used = true;
 556                         return mod;
 557                 }
 558         }
 559
 560         // no match found, create a new one
 561         mod = (dp_model_t *) Mem_ExpandableArray_AllocRecord(&models);
 562         strlcpy(mod->name, name, sizeof(mod->name));
 563         if (parentname[0])
 564                 mod->brush.parentmodel = Mod_FindName(parentname, NULL);
 565         else
 566                 mod->brush.parentmodel = NULL;
 567         mod->loaded = false;
 568         mod->used = true;
 569         return mod;
 570 }
 571
 572 /*
 573 ==================
 574 Mod_ForName
 575
 576 Loads in a model for the given name
 577 ==================
 578 */
 579 dp_model_t *Mod_ForName(const char *name, qboolean crash, qboolean checkdisk, const char *parentname)
 580 {
 581         dp_model_t *model;
 582         model = Mod_FindName(name, parentname);
 583         if (!model->loaded || checkdisk)
 584                 Mod_LoadModel(model, crash, checkdisk);
 585         return model;
 586 }
 587
 588 /*
 589 ==================
 590 Mod_Reload
 591
 592 Reloads all models if they have changed
 593 ==================
 594 */
 595 void Mod_Reload(void)
 596 {
 597         int i, count;
 598         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 599         dp_model_t *mod;
 600
 601         SCR_PushLoadingScreen(false, "Reloading models", 1.0);
 602         count = 0;
 603         for (i = 0;i < nummodels;i++)
 604                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 605                         ++count;
 606         for (i = 0;i < nummodels;i++)
 607                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 608                 {
 609                         SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
 610                         Mod_LoadModel(mod, true, true);
 611                         SCR_PopLoadingScreen(false);
 612                 }
 613         SCR_PopLoadingScreen(false);
 614 }
 615
 616 unsigned char *mod_base;
 617
 618
 619 //=============================================================================
 620
 621 /*
 622 ================
 623 Mod_Print
 624 ================
 625 */
 626 static void Mod_Print(void)
 627 {
 628         int i;
 629         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 630         dp_model_t *mod;
 631
 632         Con_Print("Loaded models:\n");
 633         for (i = 0;i < nummodels;i++)
 634         {
 635                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
 636                 {
 637                         if (mod->brush.numsubmodels)
 638                                 Con_Printf("%4iK %s (%i submodels)\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name, mod->brush.numsubmodels);
 639                         else
 640                                 Con_Printf("%4iK %s\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name);
 641                 }
 642         }
 643 }
 644
 645 /*
 646 ================
 647 Mod_Precache
 648 ================
 649 */
 650 static void Mod_Precache(void)
 651 {
 652         if (Cmd_Argc() == 2)
 653                 Mod_ForName(Cmd_Argv(1), false, true, Cmd_Argv(1)[0] == '*' ? cl.model_name[1] : NULL);
 654         else
 655                 Con_Print("usage: modelprecache <filename>\n");
 656 }
 657
 658 int Mod_BuildVertexRemapTableFromElements(int numelements, const int *elements, int numvertices, int *remapvertices)
 659 {
 660         int i, count;
 661         unsigned char *used;
 662         used = (unsigned char *)Mem_Alloc(tempmempool, numvertices);
 663         memset(used, 0, numvertices);
 664         for (i = 0;i < numelements;i++)
 665                 used[elements[i]] = 1;
 666         for (i = 0, count = 0;i < numvertices;i++)
 667                 remapvertices[i] = used[i] ? count++ : -1;
 668         Mem_Free(used);
 669         return count;
 670 }
 671
 672 #if 1
 673 // fast way, using an edge hash
 674 #define TRIANGLEEDGEHASH 8192
 675 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 676 {
 677         int i, j, p, e1, e2, *n, hashindex, count, match;
 678         const int *e;
 679         typedef struct edgehashentry_s
 680         {
 681                 struct edgehashentry_s *next;
 682                 int triangle;
 683                 int element[2];
 684         }
 685         edgehashentry_t;
 686         static edgehashentry_t **edgehash;
 687         edgehashentry_t *edgehashentries, *hash;
 688         if (!numtriangles)
 689                 return;
 690         edgehash = Mem_Alloc(tempmempool, TRIANGLEEDGEHASH * sizeof(*edgehash));
 691         // if there are too many triangles for the stack array, allocate larger buffer
 692         edgehashentries = (edgehashentry_t *)Mem_Alloc(tempmempool, numtriangles * 3 * sizeof(edgehashentry_t));
 693         // find neighboring triangles
 694         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 695         {
 696                 for (j = 0, p = 2;j < 3;p = j, j++)
 697                 {
 698                         e1 = e[p];
 699                         e2 = e[j];
 700                         // this hash index works for both forward and backward edges
 701                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 702                         hash = edgehashentries + i * 3 + j;
 703                         hash->next = edgehash[hashindex];
 704                         edgehash[hashindex] = hash;
 705                         hash->triangle = i;
 706                         hash->element[0] = e1;
 707                         hash->element[1] = e2;
 708                 }
 709         }
 710         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 711         {
 712                 for (j = 0, p = 2;j < 3;p = j, j++)
 713                 {
 714                         e1 = e[p];
 715                         e2 = e[j];
 716                         // this hash index works for both forward and backward edges
 717                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 718                         count = 0;
 719                         match = -1;
 720                         for (hash = edgehash[hashindex];hash;hash = hash->next)
 721                         {
 722                                 if (hash->element[0] == e2 && hash->element[1] == e1)
 723                                 {
 724                                         if (hash->triangle != i)
 725                                                 match = hash->triangle;
 726                                         count++;
 727                                 }
 728                                 else if ((hash->element[0] == e1 && hash->element[1] == e2))
 729                                         count++;
 730                         }
 731                         // detect edges shared by three triangles and make them seams
 732                         if (count > 2)
 733                                 match = -1;
 734                         n[p] = match;
 735                 }
 736
 737                 // also send a keepalive here (this can take a while too!)
 738                 CL_KeepaliveMessage(false);
 739         }
 740         // free the allocated buffer
 741         Mem_Free(edgehashentries);
 742         Mem_Free(edgehash);
 743 }
 744 #else
 745 // very slow but simple way
 746 static int Mod_FindTriangleWithEdge(const int *elements, int numtriangles, int start, int end, int ignore)
 747 {
 748         int i, match, count;
 749         count = 0;
 750         match = -1;
 751         for (i = 0;i < numtriangles;i++, elements += 3)
 752         {
 753                      if ((elements[0] == start && elements[1] == end)
 754                       || (elements[1] == start && elements[2] == end)
 755                       || (elements[2] == start && elements[0] == end))
 756                 {
 757                         if (i != ignore)
 758                                 match = i;
 759                         count++;
 760                 }
 761                 else if ((elements[1] == start && elements[0] == end)
 762                       || (elements[2] == start && elements[1] == end)
 763                       || (elements[0] == start && elements[2] == end))
 764                         count++;
 765         }
 766         // detect edges shared by three triangles and make them seams
 767         if (count > 2)
 768                 match = -1;
 769         return match;
 770 }
 771
 772 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 773 {
 774         int i, *n;
 775         const int *e;
 776         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 777         {
 778                 n[0] = Mod_FindTriangleWithEdge(elements, numtriangles, e[1], e[0], i);
 779                 n[1] = Mod_FindTriangleWithEdge(elements, numtriangles, e[2], e[1], i);
 780                 n[2] = Mod_FindTriangleWithEdge(elements, numtriangles, e[0], e[2], i);
 781         }
 782 }
 783 #endif
 784
 785 void Mod_ValidateElements(int *elements, int numtriangles, int firstvertex, int numverts, const char *filename, int fileline)
 786 {
 787         int i, warned = false, endvertex = firstvertex + numverts;
 788         for (i = 0;i < numtriangles * 3;i++)
 789         {
 790                 if (elements[i] < firstvertex || elements[i] >= endvertex)
 791                 {
 792                         if (!warned)
 793                         {
 794                                 warned = true;
 795                                 Con_Printf("Mod_ValidateElements: out of bounds elements detected at %s:%d\n", filename, fileline);
 796                         }
 797                         elements[i] = firstvertex;
 798                 }
 799         }
 800 }
 801
 802 // warning: this is an expensive function!
 803 void Mod_BuildNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const int *elements, float *normal3f, qboolean areaweighting)
 804 {
 805         int i, j;
 806         const int *element;
 807         float *vectorNormal;
 808         float areaNormal[3];
 809         // clear the vectors
 810         memset(normal3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 811         // process each vertex of each triangle and accumulate the results
 812         // use area-averaging, to make triangles with a big area have a bigger
 813         // weighting on the vertex normal than triangles with a small area
 814         // to do so, just add the 'normals' together (the bigger the area
 815         // the greater the length of the normal is
 816         element = elements;
 817         for (i = 0; i < numtriangles; i++, element += 3)
 818         {
 819                 TriangleNormal(
 820                         vertex3f + element[0] * 3,
 821                         vertex3f + element[1] * 3,
 822                         vertex3f + element[2] * 3,
 823                         areaNormal
 824                         );
 825
 826                 if (!areaweighting)
 827                         VectorNormalize(areaNormal);
 828
 829                 for (j = 0;j < 3;j++)
 830                 {
 831                         vectorNormal = normal3f + element[j] * 3;
 832                         vectorNormal[0] += areaNormal[0];
 833                         vectorNormal[1] += areaNormal[1];
 834                         vectorNormal[2] += areaNormal[2];
 835                 }
 836         }
 837         // and just normalize the accumulated vertex normal in the end
 838         vectorNormal = normal3f + 3 * firstvertex;
 839         for (i = 0; i < numvertices; i++, vectorNormal += 3)
 840                 VectorNormalize(vectorNormal);
 841 }
 842
 843 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)
 844 {
 845         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 846         // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 847         // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 848
 849         // 6 multiply, 9 subtract
 850         VectorSubtract(v1, v0, v10);
 851         VectorSubtract(v2, v0, v20);
 852         normal3f[0] = v20[1] * v10[2] - v20[2] * v10[1];
 853         normal3f[1] = v20[2] * v10[0] - v20[0] * v10[2];
 854         normal3f[2] = v20[0] * v10[1] - v20[1] * v10[0];
 855         // 12 multiply, 10 subtract
 856         tc10[1] = tc1[1] - tc0[1];
 857         tc20[1] = tc2[1] - tc0[1];
 858         svector3f[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 859         svector3f[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 860         svector3f[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 861         tc10[0] = tc1[0] - tc0[0];
 862         tc20[0] = tc2[0] - tc0[0];
 863         tvector3f[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 864         tvector3f[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 865         tvector3f[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 866         // 12 multiply, 4 add, 6 subtract
 867         f = DotProduct(svector3f, normal3f);
 868         svector3f[0] -= f * normal3f[0];
 869         svector3f[1] -= f * normal3f[1];
 870         svector3f[2] -= f * normal3f[2];
 871         f = DotProduct(tvector3f, normal3f);
 872         tvector3f[0] -= f * normal3f[0];
 873         tvector3f[1] -= f * normal3f[1];
 874         tvector3f[2] -= f * normal3f[2];
 875         // if texture is mapped the wrong way (counterclockwise), the tangents
 876         // have to be flipped, this is detected by calculating a normal from the
 877         // two tangents, and seeing if it is opposite the surface normal
 878         // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 879         CrossProduct(tvector3f, svector3f, tangentcross);
 880         if (DotProduct(tangentcross, normal3f) < 0)
 881         {
 882                 VectorNegate(svector3f, svector3f);
 883                 VectorNegate(tvector3f, tvector3f);
 884         }
 885 }
 886
 887 // warning: this is a very expensive function!
 888 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)
 889 {
 890         int i, tnum;
 891         float sdir[3], tdir[3], normal[3], *sv, *tv;
 892         const float *v0, *v1, *v2, *tc0, *tc1, *tc2, *n;
 893         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 894         const int *e;
 895         // clear the vectors
 896         memset(svector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 897         memset(tvector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 898         // process each vertex of each triangle and accumulate the results
 899         for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
 900         {
 901                 v0 = vertex3f + e[0] * 3;
 902                 v1 = vertex3f + e[1] * 3;
 903                 v2 = vertex3f + e[2] * 3;
 904                 tc0 = texcoord2f + e[0] * 2;
 905                 tc1 = texcoord2f + e[1] * 2;
 906                 tc2 = texcoord2f + e[2] * 2;
 907
 908                 // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 909                 // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 910
 911                 // calculate the edge directions and surface normal
 912                 // 6 multiply, 9 subtract
 913                 VectorSubtract(v1, v0, v10);
 914                 VectorSubtract(v2, v0, v20);
 915                 normal[0] = v20[1] * v10[2] - v20[2] * v10[1];
 916                 normal[1] = v20[2] * v10[0] - v20[0] * v10[2];
 917                 normal[2] = v20[0] * v10[1] - v20[1] * v10[0];
 918
 919                 // calculate the tangents
 920                 // 12 multiply, 10 subtract
 921                 tc10[1] = tc1[1] - tc0[1];
 922                 tc20[1] = tc2[1] - tc0[1];
 923                 sdir[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 924                 sdir[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 925                 sdir[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 926                 tc10[0] = tc1[0] - tc0[0];
 927                 tc20[0] = tc2[0] - tc0[0];
 928                 tdir[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 929                 tdir[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 930                 tdir[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 931
 932                 // if texture is mapped the wrong way (counterclockwise), the tangents
 933                 // have to be flipped, this is detected by calculating a normal from the
 934                 // two tangents, and seeing if it is opposite the surface normal
 935                 // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 936                 CrossProduct(tdir, sdir, tangentcross);
 937                 if (DotProduct(tangentcross, normal) < 0)
 938                 {
 939                         VectorNegate(sdir, sdir);
 940                         VectorNegate(tdir, tdir);
 941                 }
 942
 943                 if (!areaweighting)
 944                 {
 945                         VectorNormalize(sdir);
 946                         VectorNormalize(tdir);
 947                 }
 948                 for (i = 0;i < 3;i++)
 949                 {
 950                         VectorAdd(svector3f + e[i]*3, sdir, svector3f + e[i]*3);
 951                         VectorAdd(tvector3f + e[i]*3, tdir, tvector3f + e[i]*3);
 952                 }
 953         }
 954         // make the tangents completely perpendicular to the surface normal, and
 955         // then normalize them
 956         // 16 assignments, 2 divide, 2 sqrt, 2 negates, 14 adds, 24 multiplies
 957         for (i = 0, sv = svector3f + 3 * firstvertex, tv = tvector3f + 3 * firstvertex, n = normal3f + 3 * firstvertex;i < numvertices;i++, sv += 3, tv += 3, n += 3)
 958         {
 959                 f = -DotProduct(sv, n);
 960                 VectorMA(sv, f, n, sv);
 961                 VectorNormalize(sv);
 962                 f = -DotProduct(tv, n);
 963                 VectorMA(tv, f, n, tv);
 964                 VectorNormalize(tv);
 965         }
 966 }
 967
 968 void Mod_AllocSurfMesh(mempool_t *mempool, int numvertices, int numtriangles, qboolean lightmapoffsets, qboolean vertexcolors, qboolean neighbors)
 969 {
 970         unsigned char *data;
 971         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));
 972         loadmodel->surfmesh.num_vertices = numvertices;
 973         loadmodel->surfmesh.num_triangles = numtriangles;
 974         if (loadmodel->surfmesh.num_vertices)
 975         {
 976                 loadmodel->surfmesh.data_vertex3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 977                 loadmodel->surfmesh.data_svector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 978                 loadmodel->surfmesh.data_tvector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 979                 loadmodel->surfmesh.data_normal3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 980                 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 981                 loadmodel->surfmesh.data_texcoordlightmap2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 982                 if (vertexcolors)
 983                         loadmodel->surfmesh.data_lightmapcolor4f = (float *)data, data += sizeof(float[4]) * loadmodel->surfmesh.num_vertices;
 984                 if (lightmapoffsets)
 985                         loadmodel->surfmesh.data_lightmapoffsets = (int *)data, data += sizeof(int) * loadmodel->surfmesh.num_vertices;
 986         }
 987         if (loadmodel->surfmesh.num_triangles)
 988         {
 989                 loadmodel->surfmesh.data_element3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
 990                 if (neighbors)
 991                         loadmodel->surfmesh.data_neighbor3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
 992                 if (loadmodel->surfmesh.num_vertices <= 65536)
 993                         loadmodel->surfmesh.data_element3s = (unsigned short *)data, data += sizeof(unsigned short[3]) * loadmodel->surfmesh.num_triangles;
 994         }
 995 }
 996
 997 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)
 998 {
 999         shadowmesh_t *newmesh;
1000         unsigned char *data;
1001         int size;
1002         size = sizeof(shadowmesh_t);
1003         size += maxverts * sizeof(float[3]);
1004         if (light)
1005                 size += maxverts * sizeof(float[11]);
1006         size += maxtriangles * sizeof(int[3]);
1007         if (maxverts <= 65536)
1008                 size += maxtriangles * sizeof(unsigned short[3]);
1009         if (neighbors)
1010                 size += maxtriangles * sizeof(int[3]);
1011         if (expandable)
1012                 size += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *) + maxverts * sizeof(shadowmeshvertexhash_t);
1013         data = (unsigned char *)Mem_Alloc(mempool, size);
1014         newmesh = (shadowmesh_t *)data;data += sizeof(*newmesh);
1015         newmesh->map_diffuse = map_diffuse;
1016         newmesh->map_specular = map_specular;
1017         newmesh->map_normal = map_normal;
1018         newmesh->maxverts = maxverts;
1019         newmesh->maxtriangles = maxtriangles;
1020         newmesh->numverts = 0;
1021         newmesh->numtriangles = 0;
1022         memset(newmesh->sideoffsets, 0, sizeof(newmesh->sideoffsets));
1023         memset(newmesh->sidetotals, 0, sizeof(newmesh->sidetotals));
1024
1025         newmesh->vertex3f = (float *)data;data += maxverts * sizeof(float[3]);
1026         if (light)
1027         {
1028                 newmesh->svector3f = (float *)data;data += maxverts * sizeof(float[3]);
1029                 newmesh->tvector3f = (float *)data;data += maxverts * sizeof(float[3]);
1030                 newmesh->normal3f = (float *)data;data += maxverts * sizeof(float[3]);
1031                 newmesh->texcoord2f = (float *)data;data += maxverts * sizeof(float[2]);
1032         }
1033         newmesh->element3i = (int *)data;data += maxtriangles * sizeof(int[3]);
1034         if (neighbors)
1035         {
1036                 newmesh->neighbor3i = (int *)data;data += maxtriangles * sizeof(int[3]);
1037         }
1038         if (expandable)
1039         {
1040                 newmesh->vertexhashtable = (shadowmeshvertexhash_t **)data;data += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *);
1041                 newmesh->vertexhashentries = (shadowmeshvertexhash_t *)data;data += maxverts * sizeof(shadowmeshvertexhash_t);
1042         }
1043         if (maxverts <= 65536)
1044                 newmesh->element3s = (unsigned short *)data;data += maxtriangles * sizeof(unsigned short[3]);
1045         return newmesh;
1046 }
1047
1048 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh, int light, int neighbors)
1049 {
1050         shadowmesh_t *newmesh;
1051         newmesh = Mod_ShadowMesh_Alloc(mempool, oldmesh->numverts, oldmesh->numtriangles, oldmesh->map_diffuse, oldmesh->map_specular, oldmesh->map_normal, light, neighbors, false);
1052         newmesh->numverts = oldmesh->numverts;
1053         newmesh->numtriangles = oldmesh->numtriangles;
1054         memcpy(newmesh->sideoffsets, oldmesh->sideoffsets, sizeof(oldmesh->sideoffsets));
1055         memcpy(newmesh->sidetotals, oldmesh->sidetotals, sizeof(oldmesh->sidetotals));
1056
1057         memcpy(newmesh->vertex3f, oldmesh->vertex3f, oldmesh->numverts * sizeof(float[3]));
1058         if (newmesh->svector3f && oldmesh->svector3f)
1059         {
1060                 memcpy(newmesh->svector3f, oldmesh->svector3f, oldmesh->numverts * sizeof(float[3]));
1061                 memcpy(newmesh->tvector3f, oldmesh->tvector3f, oldmesh->numverts * sizeof(float[3]));
1062                 memcpy(newmesh->normal3f, oldmesh->normal3f, oldmesh->numverts * sizeof(float[3]));
1063                 memcpy(newmesh->texcoord2f, oldmesh->texcoord2f, oldmesh->numverts * sizeof(float[2]));
1064         }
1065         memcpy(newmesh->element3i, oldmesh->element3i, oldmesh->numtriangles * sizeof(int[3]));
1066         if (newmesh->neighbor3i && oldmesh->neighbor3i)
1067                 memcpy(newmesh->neighbor3i, oldmesh->neighbor3i, oldmesh->numtriangles * sizeof(int[3]));
1068         return newmesh;
1069 }
1070
1071 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *vertex14f)
1072 {
1073         int hashindex, vnum;
1074         shadowmeshvertexhash_t *hash;
1075         // this uses prime numbers intentionally
1076         hashindex = (unsigned int) (vertex14f[0] * 2003 + vertex14f[1] * 4001 + vertex14f[2] * 7919) % SHADOWMESHVERTEXHASH;
1077         for (hash = mesh->vertexhashtable[hashindex];hash;hash = hash->next)
1078         {
1079                 vnum = (hash - mesh->vertexhashentries);
1080                 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]))
1081                  && (mesh->svector3f == NULL || (mesh->svector3f[vnum * 3 + 0] == vertex14f[3] && mesh->svector3f[vnum * 3 + 1] == vertex14f[4] && mesh->svector3f[vnum * 3 + 2] == vertex14f[5]))
1082                  && (mesh->tvector3f == NULL || (mesh->tvector3f[vnum * 3 + 0] == vertex14f[6] && mesh->tvector3f[vnum * 3 + 1] == vertex14f[7] && mesh->tvector3f[vnum * 3 + 2] == vertex14f[8]))
1083                  && (mesh->normal3f == NULL || (mesh->normal3f[vnum * 3 + 0] == vertex14f[9] && mesh->normal3f[vnum * 3 + 1] == vertex14f[10] && mesh->normal3f[vnum * 3 + 2] == vertex14f[11]))
1084                  && (mesh->texcoord2f == NULL || (mesh->texcoord2f[vnum * 2 + 0] == vertex14f[12] && mesh->texcoord2f[vnum * 2 + 1] == vertex14f[13])))
1085                         return hash - mesh->vertexhashentries;
1086         }
1087         vnum = mesh->numverts++;
1088         hash = mesh->vertexhashentries + vnum;
1089         hash->next = mesh->vertexhashtable[hashindex];
1090         mesh->vertexhashtable[hashindex] = hash;
1091         if (mesh->vertex3f) {mesh->vertex3f[vnum * 3 + 0] = vertex14f[0];mesh->vertex3f[vnum * 3 + 1] = vertex14f[1];mesh->vertex3f[vnum * 3 + 2] = vertex14f[2];}
1092         if (mesh->svector3f) {mesh->svector3f[vnum * 3 + 0] = vertex14f[3];mesh->svector3f[vnum * 3 + 1] = vertex14f[4];mesh->svector3f[vnum * 3 + 2] = vertex14f[5];}
1093         if (mesh->tvector3f) {mesh->tvector3f[vnum * 3 + 0] = vertex14f[6];mesh->tvector3f[vnum * 3 + 1] = vertex14f[7];mesh->tvector3f[vnum * 3 + 2] = vertex14f[8];}
1094         if (mesh->normal3f) {mesh->normal3f[vnum * 3 + 0] = vertex14f[9];mesh->normal3f[vnum * 3 + 1] = vertex14f[10];mesh->normal3f[vnum * 3 + 2] = vertex14f[11];}
1095         if (mesh->texcoord2f) {mesh->texcoord2f[vnum * 2 + 0] = vertex14f[12];mesh->texcoord2f[vnum * 2 + 1] = vertex14f[13];}
1096         return vnum;
1097 }
1098
1099 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex14f)
1100 {
1101         if (mesh->numtriangles == 0)
1102         {
1103                 // set the properties on this empty mesh to be more favorable...
1104                 // (note: this case only occurs for the first triangle added to a new mesh chain)
1105                 mesh->map_diffuse = map_diffuse;
1106                 mesh->map_specular = map_specular;
1107                 mesh->map_normal = map_normal;
1108         }
1109         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)
1110         {
1111                 if (mesh->next == NULL)
1112                         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);
1113                 mesh = mesh->next;
1114         }
1115         mesh->element3i[mesh->numtriangles * 3 + 0] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 0);
1116         mesh->element3i[mesh->numtriangles * 3 + 1] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 1);
1117         mesh->element3i[mesh->numtriangles * 3 + 2] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 2);
1118         mesh->numtriangles++;
1119 }
1120
1121 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)
1122 {
1123         int i, j, e;
1124         float vbuf[3*14], *v;
1125         memset(vbuf, 0, sizeof(vbuf));
1126         for (i = 0;i < numtris;i++)
1127         {
1128                 for (j = 0, v = vbuf;j < 3;j++, v += 14)
1129                 {
1130                         e = *element3i++;
1131                         if (vertex3f)
1132                         {
1133                                 v[0] = vertex3f[e * 3 + 0];
1134                                 v[1] = vertex3f[e * 3 + 1];
1135                                 v[2] = vertex3f[e * 3 + 2];
1136                         }
1137                         if (svector3f)
1138                         {
1139                                 v[3] = svector3f[e * 3 + 0];
1140                                 v[4] = svector3f[e * 3 + 1];
1141                                 v[5] = svector3f[e * 3 + 2];
1142                         }
1143                         if (tvector3f)
1144                         {
1145                                 v[6] = tvector3f[e * 3 + 0];
1146                                 v[7] = tvector3f[e * 3 + 1];
1147                                 v[8] = tvector3f[e * 3 + 2];
1148                         }
1149                         if (normal3f)
1150                         {
1151                                 v[9] = normal3f[e * 3 + 0];
1152                                 v[10] = normal3f[e * 3 + 1];
1153                                 v[11] = normal3f[e * 3 + 2];
1154                         }
1155                         if (texcoord2f)
1156                         {
1157                                 v[12] = texcoord2f[e * 2 + 0];
1158                                 v[13] = texcoord2f[e * 2 + 1];
1159                         }
1160                 }
1161                 Mod_ShadowMesh_AddTriangle(mempool, mesh, map_diffuse, map_specular, map_normal, vbuf);
1162         }
1163
1164         // the triangle calculation can take a while, so let's do a keepalive here
1165         CL_KeepaliveMessage(false);
1166 }
1167
1168 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)
1169 {
1170         // the preparation before shadow mesh initialization can take a while, so let's do a keepalive here
1171         CL_KeepaliveMessage(false);
1172
1173         return Mod_ShadowMesh_Alloc(mempool, maxverts, maxtriangles, map_diffuse, map_specular, map_normal, light, neighbors, expandable);
1174 }
1175
1176 static void Mod_ShadowMesh_CreateVBOs(shadowmesh_t *mesh)
1177 {
1178         if (!vid.support.arb_vertex_buffer_object)
1179                 return;
1180         if (mesh->vbo)
1181                 return;
1182
1183         // element buffer is easy because it's just one array
1184         if (mesh->numtriangles)
1185         {
1186                 if (mesh->element3s)
1187                         mesh->ebo3s = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, mesh->element3s, mesh->numtriangles * sizeof(unsigned short[3]), "shadowmesh");
1188                 else
1189                         mesh->ebo3i = R_Mesh_CreateStaticBufferObject(GL_ELEMENT_ARRAY_BUFFER_ARB, mesh->element3i, mesh->numtriangles * sizeof(unsigned int[3]), "shadowmesh");
1190         }
1191
1192         // vertex buffer is several arrays and we put them in the same buffer
1193         //
1194         // is this wise?  the texcoordtexture2f array is used with dynamic
1195         // vertex/svector/tvector/normal when rendering animated models, on the
1196         // other hand animated models don't use a lot of vertices anyway...
1197         if (mesh->numverts)
1198         {
1199                 size_t size;
1200                 unsigned char *mem;
1201                 size = 0;
1202                 mesh->vbooffset_vertex3f           = size;if (mesh->vertex3f          ) size += mesh->numverts * sizeof(float[3]);
1203                 mesh->vbooffset_svector3f          = size;if (mesh->svector3f         ) size += mesh->numverts * sizeof(float[3]);
1204                 mesh->vbooffset_tvector3f          = size;if (mesh->tvector3f         ) size += mesh->numverts * sizeof(float[3]);
1205                 mesh->vbooffset_normal3f           = size;if (mesh->normal3f          ) size += mesh->numverts * sizeof(float[3]);
1206                 mesh->vbooffset_texcoord2f         = size;if (mesh->texcoord2f        ) size += mesh->numverts * sizeof(float[2]);
1207                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
1208                 if (mesh->vertex3f          ) memcpy(mem + mesh->vbooffset_vertex3f          , mesh->vertex3f          , mesh->numverts * sizeof(float[3]));
1209                 if (mesh->svector3f         ) memcpy(mem + mesh->vbooffset_svector3f         , mesh->svector3f         , mesh->numverts * sizeof(float[3]));
1210                 if (mesh->tvector3f         ) memcpy(mem + mesh->vbooffset_tvector3f         , mesh->tvector3f         , mesh->numverts * sizeof(float[3]));
1211                 if (mesh->normal3f          ) memcpy(mem + mesh->vbooffset_normal3f          , mesh->normal3f          , mesh->numverts * sizeof(float[3]));
1212                 if (mesh->texcoord2f        ) memcpy(mem + mesh->vbooffset_texcoord2f        , mesh->texcoord2f        , mesh->numverts * sizeof(float[2]));
1213                 mesh->vbo = R_Mesh_CreateStaticBufferObject(GL_ARRAY_BUFFER_ARB, mem, size, "shadowmesh");
1214                 Mem_Free(mem);
1215         }
1216 }
1217
1218 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh, qboolean light, qboolean neighbors, qboolean createvbo)
1219 {
1220         shadowmesh_t *mesh, *newmesh, *nextmesh;
1221         // reallocate meshs to conserve space
1222         for (mesh = firstmesh, firstmesh = NULL;mesh;mesh = nextmesh)
1223         {
1224                 nextmesh = mesh->next;
1225                 if (mesh->numverts >= 3 && mesh->numtriangles >= 1)
1226                 {
1227                         newmesh = Mod_ShadowMesh_ReAlloc(mempool, mesh, light, neighbors);
1228                         newmesh->next = firstmesh;
1229                         firstmesh = newmesh;
1230                         if (newmesh->element3s)
1231                         {
1232                                 int i;
1233                                 for (i = 0;i < newmesh->numtriangles*3;i++)
1234                                         newmesh->element3s[i] = newmesh->element3i[i];
1235                         }
1236                         if (createvbo)
1237                                 Mod_ShadowMesh_CreateVBOs(newmesh);
1238                 }
1239                 Mem_Free(mesh);
1240         }
1241
1242         // this can take a while, so let's do a keepalive here
1243         CL_KeepaliveMessage(false);
1244
1245         return firstmesh;
1246 }
1247
1248 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius)
1249 {
1250         int i;
1251         shadowmesh_t *mesh;
1252         vec3_t nmins, nmaxs, ncenter, temp;
1253         float nradius2, dist2, *v;
1254         VectorClear(nmins);
1255         VectorClear(nmaxs);
1256         // calculate bbox
1257         for (mesh = firstmesh;mesh;mesh = mesh->next)
1258         {
1259                 if (mesh == firstmesh)
1260                 {
1261                         VectorCopy(mesh->vertex3f, nmins);
1262                         VectorCopy(mesh->vertex3f, nmaxs);
1263                 }
1264                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1265                 {
1266                         if (nmins[0] > v[0]) nmins[0] = v[0];if (nmaxs[0] < v[0]) nmaxs[0] = v[0];
1267                         if (nmins[1] > v[1]) nmins[1] = v[1];if (nmaxs[1] < v[1]) nmaxs[1] = v[1];
1268                         if (nmins[2] > v[2]) nmins[2] = v[2];if (nmaxs[2] < v[2]) nmaxs[2] = v[2];
1269                 }
1270         }
1271         // calculate center and radius
1272         ncenter[0] = (nmins[0] + nmaxs[0]) * 0.5f;
1273         ncenter[1] = (nmins[1] + nmaxs[1]) * 0.5f;
1274         ncenter[2] = (nmins[2] + nmaxs[2]) * 0.5f;
1275         nradius2 = 0;
1276         for (mesh = firstmesh;mesh;mesh = mesh->next)
1277         {
1278                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1279                 {
1280                         VectorSubtract(v, ncenter, temp);
1281                         dist2 = DotProduct(temp, temp);
1282                         if (nradius2 < dist2)
1283                                 nradius2 = dist2;
1284                 }
1285         }
1286         // return data
1287         if (mins)
1288                 VectorCopy(nmins, mins);
1289         if (maxs)
1290                 VectorCopy(nmaxs, maxs);
1291         if (center)
1292                 VectorCopy(ncenter, center);
1293         if (radius)
1294                 *radius = sqrt(nradius2);
1295 }
1296
1297 void Mod_ShadowMesh_Free(shadowmesh_t *mesh)
1298 {
1299         shadowmesh_t *nextmesh;
1300         for (;mesh;mesh = nextmesh)
1301         {
1302                 if (mesh->ebo3i)
1303                         R_Mesh_DestroyBufferObject(mesh->ebo3i);
1304                 if (mesh->ebo3s)
1305                         R_Mesh_DestroyBufferObject(mesh->ebo3s);
1306                 if (mesh->vbo)
1307                         R_Mesh_DestroyBufferObject(mesh->vbo);
1308                 nextmesh = mesh->next;
1309                 Mem_Free(mesh);
1310         }
1311 }
1312
1313 void Mod_CreateCollisionMesh(dp_model_t *mod)
1314 {
1315         int k;
1316         int numcollisionmeshtriangles;
1317         const msurface_t *surface;
1318         mempool_t *mempool = mod->mempool;
1319         if (!mempool && mod->brush.parentmodel)
1320                 mempool = mod->brush.parentmodel->mempool;
1321         // make a single combined collision mesh for physics engine use
1322         // TODO rewrite this to use the collision brushes as source, to fix issues with e.g. common/caulk which creates no drawsurface
1323         numcollisionmeshtriangles = 0;
1324         for (k = 0;k < mod->nummodelsurfaces;k++)
1325         {
1326                 surface = mod->data_surfaces + mod->firstmodelsurface + k;
1327                 if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1328                         continue;
1329                 numcollisionmeshtriangles += surface->num_triangles;
1330         }
1331         mod->brush.collisionmesh = Mod_ShadowMesh_Begin(mempool, numcollisionmeshtriangles * 3, numcollisionmeshtriangles, NULL, NULL, NULL, false, false, true);
1332         for (k = 0;k < mod->nummodelsurfaces;k++)
1333         {
1334                 surface = mod->data_surfaces + mod->firstmodelsurface + k;
1335                 if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1336                         continue;
1337                 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));
1338         }
1339         mod->brush.collisionmesh = Mod_ShadowMesh_Finish(mempool, mod->brush.collisionmesh, false, true, false);
1340 }
1341
1342 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)
1343 {
1344         float v[3], tc[3];
1345         v[0] = ix;
1346         v[1] = iy;
1347         if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
1348                 v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
1349         else
1350                 v[2] = 0;
1351         Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
1352         Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
1353         texcoord2f[0] = tc[0];
1354         texcoord2f[1] = tc[1];
1355 }
1356
1357 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)
1358 {
1359         float vup[3], vdown[3], vleft[3], vright[3];
1360         float tcup[3], tcdown[3], tcleft[3], tcright[3];
1361         float sv[3], tv[3], nl[3];
1362         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
1363         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
1364         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
1365         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
1366         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
1367         Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
1368         Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
1369         VectorAdd(svector3f, sv, svector3f);
1370         VectorAdd(tvector3f, tv, tvector3f);
1371         VectorAdd(normal3f, nl, normal3f);
1372         Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
1373         VectorAdd(svector3f, sv, svector3f);
1374         VectorAdd(tvector3f, tv, tvector3f);
1375         VectorAdd(normal3f, nl, normal3f);
1376         Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
1377         VectorAdd(svector3f, sv, svector3f);
1378         VectorAdd(tvector3f, tv, tvector3f);
1379         VectorAdd(normal3f, nl, normal3f);
1380 }
1381
1382 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)
1383 {
1384         int x, y, ix, iy, *e;
1385         e = element3i;
1386         for (y = 0;y < height;y++)
1387         {
1388                 for (x = 0;x < width;x++)
1389                 {
1390                         e[0] = (y + 1) * (width + 1) + (x + 0);
1391                         e[1] = (y + 0) * (width + 1) + (x + 0);
1392                         e[2] = (y + 1) * (width + 1) + (x + 1);
1393                         e[3] = (y + 0) * (width + 1) + (x + 0);
1394                         e[4] = (y + 0) * (width + 1) + (x + 1);
1395                         e[5] = (y + 1) * (width + 1) + (x + 1);
1396                         e += 6;
1397                 }
1398         }
1399         Mod_BuildTriangleNeighbors(neighbor3i, element3i, width*height*2);
1400         for (y = 0, iy = y1;y < height + 1;y++, iy++)
1401                 for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
1402                         Mod_GetTerrainVertexFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
1403 }
1404
1405 #if 0
1406 void Mod_Terrain_SurfaceRecurseChunk(dp_model_t *model, int stepsize, int x, int y)
1407 {
1408         float mins[3];
1409         float maxs[3];
1410         float chunkwidth = min(stepsize, model->terrain.width - 1 - x);
1411         float chunkheight = min(stepsize, model->terrain.height - 1 - y);
1412         float viewvector[3];
1413         unsigned int firstvertex;
1414         unsigned int *e;
1415         float *v;
1416         if (chunkwidth < 2 || chunkheight < 2)
1417                 return;
1418         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]);
1419         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]);
1420         viewvector[0] = bound(mins[0], localvieworigin, maxs[0]) - model->terrain.vieworigin[0];
1421         viewvector[1] = bound(mins[1], localvieworigin, maxs[1]) - model->terrain.vieworigin[1];
1422         viewvector[2] = bound(mins[2], localvieworigin, maxs[2]) - model->terrain.vieworigin[2];
1423         if (stepsize > 1 && VectorLength(viewvector) < stepsize*model->terrain.scale[0]*r_terrain_lodscale.value)
1424         {
1425                 // too close for this stepsize, emit as 4 chunks instead
1426                 stepsize /= 2;
1427                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y);
1428                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y);
1429                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y+stepsize);
1430                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y+stepsize);
1431                 return;
1432         }
1433         // emit the geometry at stepsize into our vertex buffer / index buffer
1434         // we add two columns and two rows for skirt
1435         outwidth = chunkwidth+2;
1436         outheight = chunkheight+2;
1437         outwidth2 = outwidth-1;
1438         outheight2 = outheight-1;
1439         outwidth3 = outwidth+1;
1440         outheight3 = outheight+1;
1441         firstvertex = numvertices;
1442         e = model->terrain.element3i + numtriangles;
1443         numtriangles += chunkwidth*chunkheight*2+chunkwidth*2*2+chunkheight*2*2;
1444         v = model->terrain.vertex3f + numvertices;
1445         numvertices += (chunkwidth+1)*(chunkheight+1)+(chunkwidth+1)*2+(chunkheight+1)*2;
1446         // emit the triangles (note: the skirt is treated as two extra rows and two extra columns)
1447         for (ty = 0;ty < outheight;ty++)
1448         {
1449                 for (tx = 0;tx < outwidth;tx++)
1450                 {
1451                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1452                         *e++ = firstvertex + (ty  )*outwidth3+(tx+1);
1453                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1454                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1455                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1456                         *e++ = firstvertex + (ty+1)*outwidth3+(tx  );
1457                 }
1458         }
1459         // TODO: emit surface vertices (x+tx*stepsize, y+ty*stepsize)
1460         for (ty = 0;ty <= outheight;ty++)
1461         {
1462                 skirtrow = ty == 0 || ty == outheight;
1463                 ry = y+bound(1, ty, outheight)*stepsize;
1464                 for (tx = 0;tx <= outwidth;tx++)
1465                 {
1466                         skirt = skirtrow || tx == 0 || tx == outwidth;
1467                         rx = x+bound(1, tx, outwidth)*stepsize;
1468                         v[0] = rx*scale[0];
1469                         v[1] = ry*scale[1];
1470                         v[2] = heightmap[ry*terrainwidth+rx]*scale[2];
1471                         v += 3;
1472                 }
1473         }
1474         // TODO: emit skirt vertices
1475 }
1476
1477 void Mod_Terrain_UpdateSurfacesForViewOrigin(dp_model_t *model)
1478 {
1479         for (y = 0;y < model->terrain.size[1];y += model->terrain.
1480         Mod_Terrain_SurfaceRecurseChunk(model, model->terrain.maxstepsize, x, y);
1481         Mod_Terrain_BuildChunk(model,
1482 }
1483 #endif
1484
1485 q3wavefunc_t Mod_LoadQ3Shaders_EnumerateWaveFunc(const char *s)
1486 {
1487         if (!strcasecmp(s, "sin"))             return Q3WAVEFUNC_SIN;
1488         if (!strcasecmp(s, "square"))          return Q3WAVEFUNC_SQUARE;
1489         if (!strcasecmp(s, "triangle"))        return Q3WAVEFUNC_TRIANGLE;
1490         if (!strcasecmp(s, "sawtooth"))        return Q3WAVEFUNC_SAWTOOTH;
1491         if (!strcasecmp(s, "inversesawtooth")) return Q3WAVEFUNC_INVERSESAWTOOTH;
1492         if (!strcasecmp(s, "noise"))           return Q3WAVEFUNC_NOISE;
1493         Con_DPrintf("Mod_LoadQ3Shaders: unknown wavefunc %s\n", s);
1494         return Q3WAVEFUNC_NONE;
1495 }
1496
1497 void Mod_FreeQ3Shaders(void)
1498 {
1499         Mem_FreePool(&q3shaders_mem);
1500 }
1501
1502 static void Q3Shader_AddToHash (q3shaderinfo_t* shader)
1503 {
1504         unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)shader->name, strlen (shader->name));
1505         q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1506         q3shader_hash_entry_t* lastEntry = NULL;
1507         while (entry != NULL)
1508         {
1509                 if (strcasecmp (entry->shader.name, shader->name) == 0)
1510                 {
1511                         unsigned char *start, *end, *start2;
1512                         start = (unsigned char *) (&shader->Q3SHADERINFO_COMPARE_START);
1513                         end = ((unsigned char *) (&shader->Q3SHADERINFO_COMPARE_END)) + sizeof(shader->Q3SHADERINFO_COMPARE_END);
1514                         start2 = (unsigned char *) (&entry->shader.Q3SHADERINFO_COMPARE_START);
1515                         if(memcmp(start, start2, end - start))
1516                                 Con_DPrintf("Shader '%s' already defined, ignoring mismatching redeclaration\n", shader->name);
1517                         else
1518                                 Con_DPrintf("Shader '%s' already defined\n", shader->name);
1519                         return;
1520                 }
1521                 lastEntry = entry;
1522                 entry = entry->chain;
1523         }
1524         if (entry == NULL)
1525         {
1526                 if (lastEntry->shader.name[0] != 0)
1527                 {
1528                         /* Add to chain */
1529                         q3shader_hash_entry_t* newEntry = (q3shader_hash_entry_t*)
1530                           Mem_ExpandableArray_AllocRecord (&q3shader_data->hash_entries);
1531
1532                         while (lastEntry->chain != NULL) lastEntry = lastEntry->chain;
1533                         lastEntry->chain = newEntry;
1534                         newEntry->chain = NULL;
1535                         lastEntry = newEntry;
1536                 }
1537                 /* else: head of chain, in hash entry array */
1538                 entry = lastEntry;
1539         }
1540         memcpy (&entry->shader, shader, sizeof (q3shaderinfo_t));
1541 }
1542
1543 extern cvar_t r_picmipworld;
1544 extern cvar_t mod_q3shader_default_offsetmapping;
1545 void Mod_LoadQ3Shaders(void)
1546 {
1547         int j;
1548         int fileindex;
1549         fssearch_t *search;
1550         char *f;
1551         const char *text;
1552         q3shaderinfo_t shader;
1553         q3shaderinfo_layer_t *layer;
1554         int numparameters;
1555         char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
1556
1557         Mod_FreeQ3Shaders();
1558
1559         q3shaders_mem = Mem_AllocPool("q3shaders", 0, NULL);
1560         q3shader_data = (q3shader_data_t*)Mem_Alloc (q3shaders_mem,
1561                 sizeof (q3shader_data_t));
1562         Mem_ExpandableArray_NewArray (&q3shader_data->hash_entries,
1563                 q3shaders_mem, sizeof (q3shader_hash_entry_t), 256);
1564         Mem_ExpandableArray_NewArray (&q3shader_data->char_ptrs,
1565                 q3shaders_mem, sizeof (char**), 256);
1566
1567         search = FS_Search("scripts/*.shader", true, false);
1568         if (!search)
1569                 return;
1570         for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
1571         {
1572                 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
1573                 if (!f)
1574                         continue;
1575                 while (COM_ParseToken_QuakeC(&text, false))
1576                 {
1577                         memset (&shader, 0, sizeof(shader));
1578                         shader.reflectmin = 0;
1579                         shader.reflectmax = 1;
1580                         shader.refractfactor = 1;
1581                         Vector4Set(shader.refractcolor4f, 1, 1, 1, 1);
1582                         shader.reflectfactor = 1;
1583                         Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
1584                         shader.r_water_wateralpha = 1;
1585                         shader.offsetmapping = (mod_q3shader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
1586                         shader.offsetscale = 1;
1587                         shader.specularscalemod = 1;
1588                         shader.specularpowermod = 1;
1589
1590                         strlcpy(shader.name, com_token, sizeof(shader.name));
1591                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1592                         {
1593                                 Con_DPrintf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
1594                                 break;
1595                         }
1596                         while (COM_ParseToken_QuakeC(&text, false))
1597                         {
1598                                 if (!strcasecmp(com_token, "}"))
1599                                         break;
1600                                 if (!strcasecmp(com_token, "{"))
1601                                 {
1602                                         static q3shaderinfo_layer_t dummy;
1603                                         if (shader.numlayers < Q3SHADER_MAXLAYERS)
1604                                         {
1605                                                 layer = shader.layers + shader.numlayers++;
1606                                         }
1607                                         else
1608                                         {
1609                                                 // parse and process it anyway, just don't store it (so a map $lightmap or such stuff still is found)
1610                                                 memset(&dummy, 0, sizeof(dummy));
1611                                                 layer = &dummy;
1612                                         }
1613                                         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1614                                         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1615                                         layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1616                                         layer->blendfunc[0] = GL_ONE;
1617                                         layer->blendfunc[1] = GL_ZERO;
1618                                         while (COM_ParseToken_QuakeC(&text, false))
1619                                         {
1620                                                 if (!strcasecmp(com_token, "}"))
1621                                                         break;
1622                                                 if (!strcasecmp(com_token, "\n"))
1623                                                         continue;
1624                                                 numparameters = 0;
1625                                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1626                                                 {
1627                                                         if (j < TEXTURE_MAXFRAMES + 4)
1628                                                         {
1629                                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1630                                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1631                                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1632                                                                 else
1633                                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1634                                                                 numparameters = j + 1;
1635                                                         }
1636                                                         if (!COM_ParseToken_QuakeC(&text, true))
1637                                                                 break;
1638                                                 }
1639                                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1640                                                 //      parameter[j][0] = 0;
1641                                                 if (developer_insane.integer)
1642                                                 {
1643                                                         Con_DPrintf("%s %i: ", shader.name, shader.numlayers - 1);
1644                                                         for (j = 0;j < numparameters;j++)
1645                                                                 Con_DPrintf(" %s", parameter[j]);
1646                                                         Con_DPrint("\n");
1647                                                 }
1648                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
1649                                                 {
1650                                                         if (numparameters == 2)
1651                                                         {
1652                                                                 if (!strcasecmp(parameter[1], "add"))
1653                                                                 {
1654                                                                         layer->blendfunc[0] = GL_ONE;
1655                                                                         layer->blendfunc[1] = GL_ONE;
1656                                                                 }
1657                                                                 else if (!strcasecmp(parameter[1], "filter"))
1658                                                                 {
1659                                                                         layer->blendfunc[0] = GL_DST_COLOR;
1660                                                                         layer->blendfunc[1] = GL_ZERO;
1661                                                                 }
1662                                                                 else if (!strcasecmp(parameter[1], "blend"))
1663                                                                 {
1664                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1665                                                                         layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
1666                                                                 }
1667                                                         }
1668                                                         else if (numparameters == 3)
1669                                                         {
1670                                                                 int k;
1671                                                                 for (k = 0;k < 2;k++)
1672                                                                 {
1673                                                                         if (!strcasecmp(parameter[k+1], "GL_ONE"))
1674                                                                                 layer->blendfunc[k] = GL_ONE;
1675                                                                         else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
1676                                                                                 layer->blendfunc[k] = GL_ZERO;
1677                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
1678                                                                                 layer->blendfunc[k] = GL_SRC_COLOR;
1679                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
1680                                                                                 layer->blendfunc[k] = GL_SRC_ALPHA;
1681                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
1682                                                                                 layer->blendfunc[k] = GL_DST_COLOR;
1683                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
1684                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1685                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
1686                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
1687                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
1688                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
1689                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
1690                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
1691                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
1692                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1693                                                                         else
1694                                                                                 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
1695                                                                 }
1696                                                         }
1697                                                 }
1698                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
1699                                                         layer->alphatest = true;
1700                                                 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
1701                                                 {
1702                                                         if (!strcasecmp(parameter[0], "clampmap"))
1703                                                                 layer->clampmap = true;
1704                                                         layer->numframes = 1;
1705                                                         layer->framerate = 1;
1706                                                         layer->texturename = (char**)Mem_ExpandableArray_AllocRecord (
1707                                                                 &q3shader_data->char_ptrs);
1708                                                         layer->texturename[0] = Mem_strdup (q3shaders_mem, parameter[1]);
1709                                                         if (!strcasecmp(parameter[1], "$lightmap"))
1710                                                                 shader.lighting = true;
1711                                                 }
1712                                                 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
1713                                                 {
1714                                                         int i;
1715                                                         layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
1716                                                         layer->framerate = atof(parameter[1]);
1717                                                         layer->texturename = (char **) Mem_Alloc (q3shaders_mem, sizeof (char*) * layer->numframes);
1718                                                         for (i = 0;i < layer->numframes;i++)
1719                                                                 layer->texturename[i] = Mem_strdup (q3shaders_mem, parameter[i + 2]);
1720                                                 }
1721                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen"))
1722                                                 {
1723                                                         int i;
1724                                                         for (i = 0;i < numparameters - 2 && i < Q3RGBGEN_MAXPARMS;i++)
1725                                                                 layer->rgbgen.parms[i] = atof(parameter[i+2]);
1726                                                              if (!strcasecmp(parameter[1], "identity"))         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1727                                                         else if (!strcasecmp(parameter[1], "const"))            layer->rgbgen.rgbgen = Q3RGBGEN_CONST;
1728                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->rgbgen.rgbgen = Q3RGBGEN_ENTITY;
1729                                                         else if (!strcasecmp(parameter[1], "exactvertex"))      layer->rgbgen.rgbgen = Q3RGBGEN_EXACTVERTEX;
1730                                                         else if (!strcasecmp(parameter[1], "identitylighting")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITYLIGHTING;
1731                                                         else if (!strcasecmp(parameter[1], "lightingdiffuse"))  layer->rgbgen.rgbgen = Q3RGBGEN_LIGHTINGDIFFUSE;
1732                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSENTITY;
1733                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSVERTEX;
1734                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->rgbgen.rgbgen = Q3RGBGEN_VERTEX;
1735                                                         else if (!strcasecmp(parameter[1], "wave"))
1736                                                         {
1737                                                                 layer->rgbgen.rgbgen = Q3RGBGEN_WAVE;
1738                                                                 layer->rgbgen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1739                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1740                                                                         layer->rgbgen.waveparms[i] = atof(parameter[i+3]);
1741                                                         }
1742                                                         else Con_DPrintf("%s parsing warning: unknown rgbgen %s\n", search->filenames[fileindex], parameter[1]);
1743                                                 }
1744                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen"))
1745                                                 {
1746                                                         int i;
1747                                                         for (i = 0;i < numparameters - 2 && i < Q3ALPHAGEN_MAXPARMS;i++)
1748                                                                 layer->alphagen.parms[i] = atof(parameter[i+2]);
1749                                                              if (!strcasecmp(parameter[1], "identity"))         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1750                                                         else if (!strcasecmp(parameter[1], "const"))            layer->alphagen.alphagen = Q3ALPHAGEN_CONST;
1751                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->alphagen.alphagen = Q3ALPHAGEN_ENTITY;
1752                                                         else if (!strcasecmp(parameter[1], "lightingspecular")) layer->alphagen.alphagen = Q3ALPHAGEN_LIGHTINGSPECULAR;
1753                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSENTITY;
1754                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSVERTEX;
1755                                                         else if (!strcasecmp(parameter[1], "portal"))           layer->alphagen.alphagen = Q3ALPHAGEN_PORTAL;
1756                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->alphagen.alphagen = Q3ALPHAGEN_VERTEX;
1757                                                         else if (!strcasecmp(parameter[1], "wave"))
1758                                                         {
1759                                                                 layer->alphagen.alphagen = Q3ALPHAGEN_WAVE;
1760                                                                 layer->alphagen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1761                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1762                                                                         layer->alphagen.waveparms[i] = atof(parameter[i+3]);
1763                                                         }
1764                                                         else Con_DPrintf("%s parsing warning: unknown alphagen %s\n", search->filenames[fileindex], parameter[1]);
1765                                                 }
1766                                                 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "texgen") || !strcasecmp(parameter[0], "tcgen")))
1767                                                 {
1768                                                         int i;
1769                                                         // observed values: tcgen environment
1770                                                         // no other values have been observed in real shaders
1771                                                         for (i = 0;i < numparameters - 2 && i < Q3TCGEN_MAXPARMS;i++)
1772                                                                 layer->tcgen.parms[i] = atof(parameter[i+2]);
1773                                                              if (!strcasecmp(parameter[1], "base"))        layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1774                                                         else if (!strcasecmp(parameter[1], "texture"))     layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1775                                                         else if (!strcasecmp(parameter[1], "environment")) layer->tcgen.tcgen = Q3TCGEN_ENVIRONMENT;
1776                                                         else if (!strcasecmp(parameter[1], "lightmap"))    layer->tcgen.tcgen = Q3TCGEN_LIGHTMAP;
1777                                                         else if (!strcasecmp(parameter[1], "vector"))      layer->tcgen.tcgen = Q3TCGEN_VECTOR;
1778                                                         else Con_DPrintf("%s parsing warning: unknown tcgen mode %s\n", search->filenames[fileindex], parameter[1]);
1779                                                 }
1780                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "tcmod"))
1781                                                 {
1782                                                         int i, tcmodindex;
1783                                                         // observed values:
1784                                                         // tcmod rotate #
1785                                                         // tcmod scale # #
1786                                                         // tcmod scroll # #
1787                                                         // tcmod stretch sin # # # #
1788                                                         // tcmod stretch triangle # # # #
1789                                                         // tcmod transform # # # # # #
1790                                                         // tcmod turb # # # #
1791                                                         // tcmod turb sin # # # #  (this is bogus)
1792                                                         // no other values have been observed in real shaders
1793                                                         for (tcmodindex = 0;tcmodindex < Q3MAXTCMODS;tcmodindex++)
1794                                                                 if (!layer->tcmods[tcmodindex].tcmod)
1795                                                                         break;
1796                                                         if (tcmodindex < Q3MAXTCMODS)
1797                                                         {
1798                                                                 for (i = 0;i < numparameters - 2 && i < Q3TCMOD_MAXPARMS;i++)
1799                                                                         layer->tcmods[tcmodindex].parms[i] = atof(parameter[i+2]);
1800                                                                          if (!strcasecmp(parameter[1], "entitytranslate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ENTITYTRANSLATE;
1801                                                                 else if (!strcasecmp(parameter[1], "rotate"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ROTATE;
1802                                                                 else if (!strcasecmp(parameter[1], "scale"))           layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCALE;
1803                                                                 else if (!strcasecmp(parameter[1], "scroll"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCROLL;
1804                                                                 else if (!strcasecmp(parameter[1], "page"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_PAGE;
1805                                                                 else if (!strcasecmp(parameter[1], "stretch"))
1806                                                                 {
1807                                                                         layer->tcmods[tcmodindex].tcmod = Q3TCMOD_STRETCH;
1808                                                                         layer->tcmods[tcmodindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1809                                                                         for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1810                                                                                 layer->tcmods[tcmodindex].waveparms[i] = atof(parameter[i+3]);
1811                                                                 }
1812                                                                 else if (!strcasecmp(parameter[1], "transform"))       layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TRANSFORM;
1813                                                                 else if (!strcasecmp(parameter[1], "turb"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TURBULENT;
1814                                                                 else Con_DPrintf("%s parsing warning: unknown tcmod mode %s\n", search->filenames[fileindex], parameter[1]);
1815                                                         }
1816                                                         else
1817                                                                 Con_DPrintf("%s parsing warning: too many tcmods on one layer\n", search->filenames[fileindex]);
1818                                                 }
1819                                                 // break out a level if it was a closing brace (not using the character here to not confuse vim)
1820                                                 if (!strcasecmp(com_token, "}"))
1821                                                         break;
1822                                         }
1823                                         if (layer->rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE || layer->rgbgen.rgbgen == Q3RGBGEN_VERTEX)
1824                                                 shader.lighting = true;
1825                                         if (layer->alphagen.alphagen == Q3ALPHAGEN_VERTEX)
1826                                         {
1827                                                 if (layer == shader.layers + 0)
1828                                                 {
1829                                                         // vertex controlled transparency
1830                                                         shader.vertexalpha = true;
1831                                                 }
1832                                                 else
1833                                                 {
1834                                                         // multilayer terrain shader or similar
1835                                                         shader.textureblendalpha = true;
1836                                                 }
1837                                         }
1838                                         layer->texflags = TEXF_ALPHA;
1839                                         if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
1840                                                 layer->texflags |= TEXF_MIPMAP;
1841                                         if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
1842                                                 layer->texflags |= TEXF_PICMIP | TEXF_COMPRESS;
1843                                         if (layer->clampmap)
1844                                                 layer->texflags |= TEXF_CLAMP;
1845                                         continue;
1846                                 }
1847                                 numparameters = 0;
1848                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1849                                 {
1850                                         if (j < TEXTURE_MAXFRAMES + 4)
1851                                         {
1852                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1853                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1854                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1855                                                 else
1856                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1857                                                 numparameters = j + 1;
1858                                         }
1859                                         if (!COM_ParseToken_QuakeC(&text, true))
1860                                                 break;
1861                                 }
1862                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1863                                 //      parameter[j][0] = 0;
1864                                 if (fileindex == 0 && !strcasecmp(com_token, "}"))
1865                                         break;
1866                                 if (developer_insane.integer)
1867                                 {
1868                                         Con_DPrintf("%s: ", shader.name);
1869                                         for (j = 0;j < numparameters;j++)
1870                                                 Con_DPrintf(" %s", parameter[j]);
1871                                         Con_DPrint("\n");
1872                                 }
1873                                 if (numparameters < 1)
1874                                         continue;
1875                                 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
1876                                 {
1877                                         if (!strcasecmp(parameter[1], "alphashadow"))
1878                                                 shader.surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
1879                                         else if (!strcasecmp(parameter[1], "areaportal"))
1880                                                 shader.surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
1881                                         else if (!strcasecmp(parameter[1], "botclip"))
1882                                                 shader.surfaceparms |= Q3SURFACEPARM_BOTCLIP;
1883                                         else if (!strcasecmp(parameter[1], "clusterportal"))
1884                                                 shader.surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
1885                                         else if (!strcasecmp(parameter[1], "detail"))
1886                                                 shader.surfaceparms |= Q3SURFACEPARM_DETAIL;
1887                                         else if (!strcasecmp(parameter[1], "donotenter"))
1888                                                 shader.surfaceparms |= Q3SURFACEPARM_DONOTENTER;
1889                                         else if (!strcasecmp(parameter[1], "dust"))
1890                                                 shader.surfaceparms |= Q3SURFACEPARM_DUST;
1891                                         else if (!strcasecmp(parameter[1], "hint"))
1892                                                 shader.surfaceparms |= Q3SURFACEPARM_HINT;
1893                                         else if (!strcasecmp(parameter[1], "fog"))
1894                                                 shader.surfaceparms |= Q3SURFACEPARM_FOG;
1895                                         else if (!strcasecmp(parameter[1], "lava"))
1896                                                 shader.surfaceparms |= Q3SURFACEPARM_LAVA;
1897                                         else if (!strcasecmp(parameter[1], "lightfilter"))
1898                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
1899                                         else if (!strcasecmp(parameter[1], "lightgrid"))
1900                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
1901                                         else if (!strcasecmp(parameter[1], "metalsteps"))
1902                                                 shader.surfaceparms |= Q3SURFACEPARM_METALSTEPS;
1903                                         else if (!strcasecmp(parameter[1], "nodamage"))
1904                                                 shader.surfaceparms |= Q3SURFACEPARM_NODAMAGE;
1905                                         else if (!strcasecmp(parameter[1], "nodlight"))
1906                                                 shader.surfaceparms |= Q3SURFACEPARM_NODLIGHT;
1907                                         else if (!strcasecmp(parameter[1], "nodraw"))
1908                                                 shader.surfaceparms |= Q3SURFACEPARM_NODRAW;
1909                                         else if (!strcasecmp(parameter[1], "nodrop"))
1910                                                 shader.surfaceparms |= Q3SURFACEPARM_NODROP;
1911                                         else if (!strcasecmp(parameter[1], "noimpact"))
1912                                                 shader.surfaceparms |= Q3SURFACEPARM_NOIMPACT;
1913                                         else if (!strcasecmp(parameter[1], "nolightmap"))
1914                                                 shader.surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
1915                                         else if (!strcasecmp(parameter[1], "nomarks"))
1916                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMARKS;
1917                                         else if (!strcasecmp(parameter[1], "nomipmaps"))
1918                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
1919                                         else if (!strcasecmp(parameter[1], "nonsolid"))
1920                                                 shader.surfaceparms |= Q3SURFACEPARM_NONSOLID;
1921                                         else if (!strcasecmp(parameter[1], "origin"))
1922                                                 shader.surfaceparms |= Q3SURFACEPARM_ORIGIN;
1923                                         else if (!strcasecmp(parameter[1], "playerclip"))
1924                                                 shader.surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
1925                                         else if (!strcasecmp(parameter[1], "sky"))
1926                                                 shader.surfaceparms |= Q3SURFACEPARM_SKY;
1927                                         else if (!strcasecmp(parameter[1], "slick"))
1928                                                 shader.surfaceparms |= Q3SURFACEPARM_SLICK;
1929                                         else if (!strcasecmp(parameter[1], "slime"))
1930                                                 shader.surfaceparms |= Q3SURFACEPARM_SLIME;
1931                                         else if (!strcasecmp(parameter[1], "structural"))
1932                                                 shader.surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
1933                                         else if (!strcasecmp(parameter[1], "trans"))
1934                                                 shader.surfaceparms |= Q3SURFACEPARM_TRANS;
1935                                         else if (!strcasecmp(parameter[1], "water"))
1936                                                 shader.surfaceparms |= Q3SURFACEPARM_WATER;
1937                                         else if (!strcasecmp(parameter[1], "pointlight"))
1938                                                 shader.surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
1939                                         else if (!strcasecmp(parameter[1], "antiportal"))
1940                                                 shader.surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
1941                                         else
1942                                                 Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
1943                                 }
1944                                 else if (!strcasecmp(parameter[0], "dpshadow"))
1945                                         shader.dpshadow = true;
1946                                 else if (!strcasecmp(parameter[0], "dpnoshadow"))
1947                                         shader.dpnoshadow = true;
1948                                 else if (!strcasecmp(parameter[0], "dpreflectcube"))
1949                                         strlcpy(shader.dpreflectcube, parameter[1], sizeof(shader.dpreflectcube));
1950                                 else if (!strcasecmp(parameter[0], "dpmeshcollisions"))
1951                                         shader.dpmeshcollisions = true;
1952                                 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
1953                                 {
1954                                         // some q3 skies don't have the sky parm set
1955                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
1956                                         strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
1957                                 }
1958                                 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
1959                                 {
1960                                         // some q3 skies don't have the sky parm set
1961                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
1962                                         if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
1963                                                 strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
1964                                 }
1965                                 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
1966                                 {
1967                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
1968                                                 shader.textureflags |= Q3TEXTUREFLAG_TWOSIDED;
1969                                 }
1970                                 else if (!strcasecmp(parameter[0], "nomipmaps"))
1971                                         shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
1972                                 else if (!strcasecmp(parameter[0], "nopicmip"))
1973                                         shader.textureflags |= Q3TEXTUREFLAG_NOPICMIP;
1974                                 else if (!strcasecmp(parameter[0], "polygonoffset"))
1975                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
1976                                 else if (!strcasecmp(parameter[0], "dprefract") && numparameters >= 5)
1977                                 {
1978                                         shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
1979                                         shader.refractfactor = atof(parameter[1]);
1980                                         Vector4Set(shader.refractcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), 1);
1981                                 }
1982                                 else if (!strcasecmp(parameter[0], "dpreflect") && numparameters >= 6)
1983                                 {
1984                                         shader.textureflags |= Q3TEXTUREFLAG_REFLECTION;
1985                                         shader.reflectfactor = atof(parameter[1]);
1986                                         Vector4Set(shader.reflectcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), atof(parameter[5]));
1987                                 }
1988                                 else if (!strcasecmp(parameter[0], "dpcamera"))
1989                                 {
1990                                         shader.textureflags |= Q3TEXTUREFLAG_CAMERA;
1991                                 }
1992                                 else if (!strcasecmp(parameter[0], "dpwater") && numparameters >= 12)
1993                                 {
1994                                         shader.textureflags |= Q3TEXTUREFLAG_WATERSHADER;
1995                                         shader.reflectmin = atof(parameter[1]);
1996                                         shader.reflectmax = atof(parameter[2]);
1997                                         shader.refractfactor = atof(parameter[3]);
1998                                         shader.reflectfactor = atof(parameter[4]);
1999                                         Vector4Set(shader.refractcolor4f, atof(parameter[5]), atof(parameter[6]), atof(parameter[7]), 1);
2000                                         Vector4Set(shader.reflectcolor4f, atof(parameter[8]), atof(parameter[9]), atof(parameter[10]), 1);
2001                                         shader.r_water_wateralpha = atof(parameter[11]);
2002                                 }
2003                                 else if (!strcasecmp(parameter[0], "dpglossintensitymod") && numparameters >= 2)
2004                                 {
2005                                         shader.specularscalemod = atof(parameter[1]);
2006                                 }
2007                                 else if (!strcasecmp(parameter[0], "dpglossexponentmod") && numparameters >= 2)
2008                                 {
2009                                         shader.specularpowermod = atof(parameter[1]);
2010                                 }
2011                                 else if (!strcasecmp(parameter[0], "dpoffsetmapping") && numparameters >= 3)
2012                                 {
2013                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "off"))
2014                                                 shader.offsetmapping = OFFSETMAPPING_OFF;
2015                                         else if (!strcasecmp(parameter[1], "default"))
2016                                                 shader.offsetmapping = OFFSETMAPPING_DEFAULT;
2017                                         else if (!strcasecmp(parameter[1], "linear"))
2018                                                 shader.offsetmapping = OFFSETMAPPING_LINEAR;
2019                                         else if (!strcasecmp(parameter[1], "relief"))
2020                                                 shader.offsetmapping = OFFSETMAPPING_RELIEF;
2021                                         shader.offsetscale = atof(parameter[2]);
2022                                 }
2023                                 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
2024                                 {
2025                                         int i, deformindex;
2026                                         for (deformindex = 0;deformindex < Q3MAXDEFORMS;deformindex++)
2027                                                 if (!shader.deforms[deformindex].deform)
2028                                                         break;
2029                                         if (deformindex < Q3MAXDEFORMS)
2030                                         {
2031                                                 for (i = 0;i < numparameters - 2 && i < Q3DEFORM_MAXPARMS;i++)
2032                                                         shader.deforms[deformindex].parms[i] = atof(parameter[i+2]);
2033                                                      if (!strcasecmp(parameter[1], "projectionshadow")) shader.deforms[deformindex].deform = Q3DEFORM_PROJECTIONSHADOW;
2034                                                 else if (!strcasecmp(parameter[1], "autosprite"      )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE;
2035                                                 else if (!strcasecmp(parameter[1], "autosprite2"     )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE2;
2036                                                 else if (!strcasecmp(parameter[1], "text0"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT0;
2037                                                 else if (!strcasecmp(parameter[1], "text1"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT1;
2038                                                 else if (!strcasecmp(parameter[1], "text2"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT2;
2039                                                 else if (!strcasecmp(parameter[1], "text3"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT3;
2040                                                 else if (!strcasecmp(parameter[1], "text4"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT4;
2041                                                 else if (!strcasecmp(parameter[1], "text5"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT5;
2042                                                 else if (!strcasecmp(parameter[1], "text6"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT6;
2043                                                 else if (!strcasecmp(parameter[1], "text7"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT7;
2044                                                 else if (!strcasecmp(parameter[1], "bulge"           )) shader.deforms[deformindex].deform = Q3DEFORM_BULGE;
2045                                                 else if (!strcasecmp(parameter[1], "normal"          )) shader.deforms[deformindex].deform = Q3DEFORM_NORMAL;
2046                                                 else if (!strcasecmp(parameter[1], "wave"            ))
2047                                                 {
2048                                                         shader.deforms[deformindex].deform = Q3DEFORM_WAVE;
2049                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[3]);
2050                                                         for (i = 0;i < numparameters - 4 && i < Q3WAVEPARMS;i++)
2051                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+4]);
2052                                                 }
2053                                                 else if (!strcasecmp(parameter[1], "move"            ))
2054                                                 {
2055                                                         shader.deforms[deformindex].deform = Q3DEFORM_MOVE;
2056                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[5]);
2057                                                         for (i = 0;i < numparameters - 6 && i < Q3WAVEPARMS;i++)
2058                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+6]);
2059                                                 }
2060                                         }
2061                                 }
2062                         }
2063                         // pick the primary layer to render with
2064                         if (shader.numlayers)
2065                         {
2066                                 shader.backgroundlayer = -1;
2067                                 shader.primarylayer = 0;
2068                                 // if lightmap comes first this is definitely an ordinary texture
2069                                 // if the first two layers have the correct blendfuncs and use vertex alpha, it is a blended terrain shader
2070                                 if ((shader.layers[shader.primarylayer].texturename != NULL)
2071                                   && !strcasecmp(shader.layers[shader.primarylayer].texturename[0], "$lightmap"))
2072                                 {
2073                                         shader.backgroundlayer = -1;
2074                                         shader.primarylayer = 1;
2075                                 }
2076                                 else if (shader.numlayers >= 2
2077                                 &&   shader.layers[1].alphagen.alphagen == Q3ALPHAGEN_VERTEX
2078                                 &&  (shader.layers[0].blendfunc[0] == GL_ONE       && shader.layers[0].blendfunc[1] == GL_ZERO                && !shader.layers[0].alphatest)
2079                                 && ((shader.layers[1].blendfunc[0] == GL_SRC_ALPHA && shader.layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2080                                 ||  (shader.layers[1].blendfunc[0] == GL_ONE       && shader.layers[1].blendfunc[1] == GL_ZERO                &&  shader.layers[1].alphatest)))
2081                                 {
2082                                         // terrain blending or other effects
2083                                         shader.backgroundlayer = 0;
2084                                         shader.primarylayer = 1;
2085                                 }
2086                         }
2087                         // fix up multiple reflection types
2088                         if(shader.textureflags & Q3TEXTUREFLAG_WATERSHADER)
2089                                 shader.textureflags &= ~(Q3TEXTUREFLAG_REFRACTION | Q3TEXTUREFLAG_REFLECTION | Q3TEXTUREFLAG_CAMERA);
2090
2091                         Q3Shader_AddToHash (&shader);
2092                 }
2093                 Mem_Free(f);
2094         }
2095         FS_FreeSearch(search);
2096 }
2097
2098 q3shaderinfo_t *Mod_LookupQ3Shader(const char *name)
2099 {
2100         unsigned short hash;
2101         q3shader_hash_entry_t* entry;
2102         if (!q3shaders_mem)
2103                 Mod_LoadQ3Shaders();
2104         hash = CRC_Block_CaseInsensitive ((const unsigned char *)name, strlen (name));
2105         entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
2106         while (entry != NULL)
2107         {
2108                 if (strcasecmp (entry->shader.name, name) == 0)
2109                         return &entry->shader;
2110                 entry = entry->chain;
2111         }
2112         return NULL;
2113 }
2114
2115 qboolean Mod_LoadTextureFromQ3Shader(texture_t *texture, const char *name, qboolean warnmissing, qboolean fallback, int defaulttexflags)
2116 {
2117         int j;
2118         int texflagsmask;
2119         qboolean success = true;
2120         q3shaderinfo_t *shader;
2121         if (!name)
2122                 name = "";
2123         strlcpy(texture->name, name, sizeof(texture->name));
2124         shader = name[0] ? Mod_LookupQ3Shader(name) : NULL;
2125
2126         texflagsmask = ~0;
2127         if(!(defaulttexflags & TEXF_PICMIP))
2128                 texflagsmask &= ~TEXF_PICMIP;
2129         if(!(defaulttexflags & TEXF_COMPRESS))
2130                 texflagsmask &= ~TEXF_COMPRESS;
2131         // unless later loaded from the shader
2132         texture->offsetmapping = (mod_q3shader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
2133         texture->offsetscale = 1;
2134         texture->specularscalemod = 1;
2135         texture->specularpowermod = 1;
2136         // WHEN ADDING DEFAULTS HERE, REMEMBER TO SYNC TO SHADER LOADING ABOVE
2137         // HERE, AND Q1BSP LOADING
2138         // JUST GREP FOR "specularscalemod = 1".
2139
2140         if (shader)
2141         {
2142                 if (developer_loading.integer)
2143                         Con_Printf("%s: loaded shader for %s\n", loadmodel->name, name);
2144                 texture->surfaceparms = shader->surfaceparms;
2145
2146                 // allow disabling of picmip or compression by defaulttexflags
2147                 texture->textureflags = shader->textureflags & texflagsmask;
2148
2149                 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
2150                 {
2151                         texture->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2152                         if (shader->skyboxname[0])
2153                         {
2154                                 // quake3 seems to append a _ to the skybox name, so this must do so as well
2155                                 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
2156                         }
2157                 }
2158                 else if ((texture->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
2159                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2160                 else
2161                         texture->basematerialflags = MATERIALFLAG_WALL;
2162
2163                 if (shader->layers[0].alphatest)
2164                         texture->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
2165                 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
2166                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
2167                 if (shader->textureflags & Q3TEXTUREFLAG_POLYGONOFFSET)
2168                         texture->biaspolygonoffset -= 2;
2169                 if (shader->textureflags & Q3TEXTUREFLAG_REFRACTION)
2170                         texture->basematerialflags |= MATERIALFLAG_REFRACTION;
2171                 if (shader->textureflags & Q3TEXTUREFLAG_REFLECTION)
2172                         texture->basematerialflags |= MATERIALFLAG_REFLECTION;
2173                 if (shader->textureflags & Q3TEXTUREFLAG_WATERSHADER)
2174                         texture->basematerialflags |= MATERIALFLAG_WATERSHADER;
2175                 if (shader->textureflags & Q3TEXTUREFLAG_CAMERA)
2176                         texture->basematerialflags |= MATERIALFLAG_CAMERA;
2177                 texture->customblendfunc[0] = GL_ONE;
2178                 texture->customblendfunc[1] = GL_ZERO;
2179                 if (shader->numlayers > 0)
2180                 {
2181                         texture->customblendfunc[0] = shader->layers[0].blendfunc[0];
2182                         texture->customblendfunc[1] = shader->layers[0].blendfunc[1];
2183 /*
2184 Q3 shader blendfuncs actually used in the game (* = supported by DP)
2185 * additive               GL_ONE GL_ONE
2186 additive weird         GL_ONE GL_SRC_ALPHA
2187 additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
2188 * alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
2189 alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
2190 brighten               GL_DST_COLOR GL_ONE
2191 brighten               GL_ONE GL_SRC_COLOR
2192 brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
2193 brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
2194 * modulate               GL_DST_COLOR GL_ZERO
2195 * modulate               GL_ZERO GL_SRC_COLOR
2196 modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
2197 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
2198 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
2199 * modulate x2            GL_DST_COLOR GL_SRC_COLOR
2200 * no blend               GL_ONE GL_ZERO
2201 nothing                GL_ZERO GL_ONE
2202 */
2203                         // if not opaque, figure out what blendfunc to use
2204                         if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
2205                         {
2206                                 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
2207                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2208                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
2209                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2210                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2211                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2212                                 else
2213                                         texture->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2214                         }
2215                 }
2216                 if (!shader->lighting)
2217                         texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
2218                 if (shader->primarylayer >= 0)
2219                 {
2220                         q3shaderinfo_layer_t* primarylayer = shader->layers + shader->primarylayer;
2221                         // copy over many primarylayer parameters
2222                         texture->rgbgen = primarylayer->rgbgen;
2223                         texture->alphagen = primarylayer->alphagen;
2224                         texture->tcgen = primarylayer->tcgen;
2225                         memcpy(texture->tcmods, primarylayer->tcmods, sizeof(texture->tcmods));
2226                         // load the textures
2227                         texture->numskinframes = primarylayer->numframes;
2228                         texture->skinframerate = primarylayer->framerate;
2229                         for (j = 0;j < primarylayer->numframes;j++)
2230                         {
2231                                 if(cls.state == ca_dedicated)
2232                                 {
2233                                         texture->skinframes[j] = NULL;
2234                                 }
2235                                 else if (!(texture->skinframes[j] = R_SkinFrame_LoadExternal(primarylayer->texturename[j], primarylayer->texflags & texflagsmask, false)))
2236                                 {
2237                                         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);
2238                                         texture->skinframes[j] = R_SkinFrame_LoadMissing();
2239                                 }
2240                         }
2241                 }
2242                 if (shader->backgroundlayer >= 0)
2243                 {
2244                         q3shaderinfo_layer_t* backgroundlayer = shader->layers + shader->backgroundlayer;
2245                         // copy over one secondarylayer parameter
2246                         memcpy(texture->backgroundtcmods, backgroundlayer->tcmods, sizeof(texture->backgroundtcmods));
2247                         // load the textures
2248                         texture->backgroundnumskinframes = backgroundlayer->numframes;
2249                         texture->backgroundskinframerate = backgroundlayer->framerate;
2250                         for (j = 0;j < backgroundlayer->numframes;j++)
2251                         {
2252                                 if(cls.state == ca_dedicated)
2253                                 {
2254                                         texture->skinframes[j] = NULL;
2255                                 }
2256                                 else if (!(texture->backgroundskinframes[j] = R_SkinFrame_LoadExternal(backgroundlayer->texturename[j], backgroundlayer->texflags & texflagsmask, false)))
2257                                 {
2258                                         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);
2259                                         texture->backgroundskinframes[j] = R_SkinFrame_LoadMissing();
2260                                 }
2261                         }
2262                 }
2263                 if (shader->dpshadow)
2264                         texture->basematerialflags &= ~MATERIALFLAG_NOSHADOW;
2265                 if (shader->dpnoshadow)
2266                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW;
2267                 memcpy(texture->deforms, shader->deforms, sizeof(texture->deforms));
2268                 texture->reflectmin = shader->reflectmin;
2269                 texture->reflectmax = shader->reflectmax;
2270                 texture->refractfactor = shader->refractfactor;
2271                 Vector4Copy(shader->refractcolor4f, texture->refractcolor4f);
2272                 texture->reflectfactor = shader->reflectfactor;
2273                 Vector4Copy(shader->reflectcolor4f, texture->reflectcolor4f);
2274                 texture->r_water_wateralpha = shader->r_water_wateralpha;
2275                 texture->offsetmapping = shader->offsetmapping;
2276                 texture->offsetscale = shader->offsetscale;
2277                 texture->specularscalemod = shader->specularscalemod;
2278                 texture->specularpowermod = shader->specularpowermod;
2279                 if (shader->dpreflectcube[0])
2280                         texture->reflectcubetexture = R_GetCubemap(shader->dpreflectcube);
2281
2282                 // set up default supercontents (on q3bsp this is overridden by the q3bsp loader)
2283                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2284                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents  = SUPERCONTENTS_LAVA         ;
2285                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents  = SUPERCONTENTS_SLIME        ;
2286                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents  = SUPERCONTENTS_WATER        ;
2287                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents  = 0                          ;
2288                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents  = SUPERCONTENTS_PLAYERCLIP   ;
2289                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents  = SUPERCONTENTS_MONSTERCLIP  ;
2290                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents  = SUPERCONTENTS_SKY          ;
2291
2292         //      if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->supercontents |= SUPERCONTENTS_ALPHASHADOW  ;
2293         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->supercontents |= SUPERCONTENTS_AREAPORTAL   ;
2294         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->supercontents |= SUPERCONTENTS_CLUSTERPORTAL;
2295         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->supercontents |= SUPERCONTENTS_DETAIL       ;
2296                 if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->supercontents |= SUPERCONTENTS_DONOTENTER   ;
2297         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->supercontents |= SUPERCONTENTS_FOG          ;
2298                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents |= SUPERCONTENTS_LAVA         ;
2299         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->supercontents |= SUPERCONTENTS_LIGHTFILTER  ;
2300         //      if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->supercontents |= SUPERCONTENTS_METALSTEPS   ;
2301         //      if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->supercontents |= SUPERCONTENTS_NODAMAGE     ;
2302         //      if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->supercontents |= SUPERCONTENTS_NODLIGHT     ;
2303         //      if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->supercontents |= SUPERCONTENTS_NODRAW       ;
2304                 if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->supercontents |= SUPERCONTENTS_NODROP       ;
2305         //      if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->supercontents |= SUPERCONTENTS_NOIMPACT     ;
2306         //      if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->supercontents |= SUPERCONTENTS_NOLIGHTMAP   ;
2307         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->supercontents |= SUPERCONTENTS_NOMARKS      ;
2308         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->supercontents |= SUPERCONTENTS_NOMIPMAPS    ;
2309                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents &=~SUPERCONTENTS_SOLID        ;
2310         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->supercontents |= SUPERCONTENTS_ORIGIN       ;
2311                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents |= SUPERCONTENTS_PLAYERCLIP   ;
2312                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents |= SUPERCONTENTS_SKY          ;
2313         //      if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->supercontents |= SUPERCONTENTS_SLICK        ;
2314                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents |= SUPERCONTENTS_SLIME        ;
2315         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->supercontents |= SUPERCONTENTS_STRUCTURAL   ;
2316         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->supercontents |= SUPERCONTENTS_TRANS        ;
2317                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents |= SUPERCONTENTS_WATER        ;
2318         //      if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->supercontents |= SUPERCONTENTS_POINTLIGHT   ;
2319         //      if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->supercontents |= SUPERCONTENTS_HINT         ;
2320         //      if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->supercontents |= SUPERCONTENTS_DUST         ;
2321                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents |= SUPERCONTENTS_BOTCLIP      | SUPERCONTENTS_MONSTERCLIP;
2322         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->supercontents |= SUPERCONTENTS_LIGHTGRID    ;
2323         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->supercontents |= SUPERCONTENTS_ANTIPORTAL   ;
2324
2325                 if (shader->dpmeshcollisions)
2326                         texture->basematerialflags |= MATERIALFLAG_MESHCOLLISIONS;
2327         }
2328         else if (!strcmp(texture->name, "noshader") || !texture->name[0])
2329         {
2330                 if (developer_extra.integer)
2331                         Con_DPrintf("^1%s:^7 using fallback noshader material for ^3\"%s\"\n", loadmodel->name, name);
2332                 texture->surfaceparms = 0;
2333                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2334         }
2335         else if (!strcmp(texture->name, "common/nodraw") || !strcmp(texture->name, "textures/common/nodraw"))
2336         {
2337                 if (developer_extra.integer)
2338                         Con_DPrintf("^1%s:^7 using fallback nodraw material for ^3\"%s\"\n", loadmodel->name, name);
2339                 texture->surfaceparms = 0;
2340                 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2341                 texture->supercontents = SUPERCONTENTS_SOLID;
2342         }
2343         else
2344         {
2345                 if (developer_extra.integer)
2346                         Con_DPrintf("^1%s:^7 No shader found for texture ^3\"%s\"\n", loadmodel->name, texture->name);
2347                 texture->surfaceparms = 0;
2348                 if (texture->surfaceflags & Q3SURFACEFLAG_NODRAW)
2349                 {
2350                         texture->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2351                         texture->supercontents = SUPERCONTENTS_SOLID;
2352                 }
2353                 else if (texture->surfaceflags & Q3SURFACEFLAG_SKY)
2354                 {
2355                         texture->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2356                         texture->supercontents = SUPERCONTENTS_SKY;
2357                 }
2358                 else
2359                 {
2360                         texture->basematerialflags |= MATERIALFLAG_WALL;
2361                         texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2362                 }
2363                 texture->numskinframes = 1;
2364                 if(cls.state == ca_dedicated)
2365                 {
2366                         texture->skinframes[0] = NULL;
2367                 }
2368                 else
2369                 {
2370                         if (fallback)
2371                         {
2372                                 if ((texture->skinframes[0] = R_SkinFrame_LoadExternal(texture->name, defaulttexflags, false)))
2373                                 {
2374                                         if(texture->skinframes[0]->hasalpha)
2375                                                 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2376                                 }
2377                                 else
2378                                         success = false;
2379                         }
2380                         else
2381                                 success = false;
2382                         if (!success && warnmissing)
2383                                 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"\n", loadmodel->name, texture->name);
2384                 }
2385         }
2386         // init the animation variables
2387         texture->currentframe = texture;
2388         if (texture->numskinframes < 1)
2389                 texture->numskinframes = 1;
2390         if (!texture->skinframes[0])
2391                 texture->skinframes[0] = R_SkinFrame_LoadMissing();
2392         texture->currentskinframe = texture->skinframes[0];
2393         texture->backgroundcurrentskinframe = texture->backgroundskinframes[0];
2394         return success;
2395 }
2396
2397 skinfile_t *Mod_LoadSkinFiles(void)
2398 {
2399         int i, words, line, wordsoverflow;
2400         char *text;
2401         const char *data;
2402         skinfile_t *skinfile = NULL, *first = NULL;
2403         skinfileitem_t *skinfileitem;
2404         char word[10][MAX_QPATH];
2405
2406 /*
2407 sample file:
2408 U_bodyBox,models/players/Legoman/BikerA2.tga
2409 U_RArm,models/players/Legoman/BikerA1.tga
2410 U_LArm,models/players/Legoman/BikerA1.tga
2411 U_armor,common/nodraw
2412 U_sword,common/nodraw
2413 U_shield,common/nodraw
2414 U_homb,common/nodraw
2415 U_backpack,common/nodraw
2416 U_colcha,common/nodraw
2417 tag_head,
2418 tag_weapon,
2419 tag_torso,
2420 */
2421         memset(word, 0, sizeof(word));
2422         for (i = 0;i < 256 && (data = text = (char *)FS_LoadFile(va("%s_%i.skin", loadmodel->name, i), tempmempool, true, NULL));i++)
2423         {
2424                 // If it's the first file we parse
2425                 if (skinfile == NULL)
2426                 {
2427                         skinfile = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2428                         first = skinfile;
2429                 }
2430                 else
2431                 {
2432                         skinfile->next = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2433                         skinfile = skinfile->next;
2434                 }
2435                 skinfile->next = NULL;
2436
2437                 for(line = 0;;line++)
2438                 {
2439                         // parse line
2440                         if (!COM_ParseToken_QuakeC(&data, true))
2441                                 break;
2442                         if (!strcmp(com_token, "\n"))
2443                                 continue;
2444                         words = 0;
2445                         wordsoverflow = false;
2446                         do
2447                         {
2448                                 if (words < 10)
2449                                         strlcpy(word[words++], com_token, sizeof (word[0]));
2450                                 else
2451                                         wordsoverflow = true;
2452                         }
2453                         while (COM_ParseToken_QuakeC(&data, true) && strcmp(com_token, "\n"));
2454                         if (wordsoverflow)
2455                         {
2456                                 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);
2457                                 continue;
2458                         }
2459                         // words is always >= 1
2460                         if (!strcmp(word[0], "replace"))
2461                         {
2462                                 if (words == 3)
2463                                 {
2464                                         if (developer_loading.integer)
2465                                                 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
2466                                         skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2467                                         skinfileitem->next = skinfile->items;
2468                                         skinfile->items = skinfileitem;
2469                                         strlcpy (skinfileitem->name, word[1], sizeof (skinfileitem->name));
2470                                         strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2471                                 }
2472                                 else
2473                                         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]);
2474                         }
2475                         else if (words >= 2 && !strncmp(word[0], "tag_", 4))
2476                         {
2477                                 // tag name, like "tag_weapon,"
2478                                 // not used for anything (not even in Quake3)
2479                         }
2480                         else if (words >= 2 && !strcmp(word[1], ","))
2481                         {
2482                                 // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
2483                                 if (developer_loading.integer)
2484                                         Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
2485                                 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2486                                 skinfileitem->next = skinfile->items;
2487                                 skinfile->items = skinfileitem;
2488                                 strlcpy (skinfileitem->name, word[0], sizeof (skinfileitem->name));
2489                                 strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2490                         }
2491                         else
2492                                 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);
2493                 }
2494                 Mem_Free(text);
2495         }
2496         if (i)
2497                 loadmodel->numskins = i;
2498         return first;
2499 }
2500
2501 void Mod_FreeSkinFiles(skinfile_t *skinfile)
2502 {
2503         skinfile_t *next;
2504         skinfileitem_t *skinfileitem, *nextitem;
2505         for (;skinfile;skinfile = next)
2506         {
2507                 next = skinfile->next;
2508                 for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
2509                 {
2510                         nextitem = skinfileitem->next;
2511                         Mem_Free(skinfileitem);
2512                 }
2513                 Mem_Free(skinfile);
2514         }
2515 }
2516
2517 int Mod_CountSkinFiles(skinfile_t *skinfile)
2518 {
2519         int i;
2520         for (i = 0;skinfile;skinfile = skinfile->next, i++);
2521         return i;
2522 }
2523
2524 void Mod_SnapVertices(int numcomponents, int numvertices, float *vertices, float snap)
2525 {
2526         int i;
2527         double isnap = 1.0 / snap;
2528         for (i = 0;i < numvertices*numcomponents;i++)
2529                 vertices[i] = floor(vertices[i]*isnap)*snap;
2530 }
2531
2532 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
2533 {
2534         int i, outtriangles;
2535         float edgedir1[3], edgedir2[3], temp[3];
2536         // a degenerate triangle is one with no width (thickness, surface area)
2537         // these are characterized by having all 3 points colinear (along a line)
2538         // or having two points identical
2539         // the simplest check is to calculate the triangle's area
2540         for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
2541         {
2542                 // calculate first edge
2543                 VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir1);
2544                 VectorSubtract(vertex3f + inelement3i[2] * 3, vertex3f + inelement3i[0] * 3, edgedir2);
2545                 CrossProduct(edgedir1, edgedir2, temp);
2546                 if (VectorLength2(temp) < 0.001f)
2547                         continue; // degenerate triangle (no area)
2548                 // valid triangle (has area)
2549                 VectorCopy(inelement3i, outelement3i);
2550                 outelement3i += 3;
2551                 outtriangles++;
2552         }
2553         return outtriangles;
2554 }
2555
2556 void Mod_VertexRangeFromElements(int numelements, const int *elements, int *firstvertexpointer, int *lastvertexpointer)
2557 {
2558         int i, e;
2559         int firstvertex, lastvertex;
2560         if (numelements > 0 && elements)
2561         {
2562                 firstvertex = lastvertex = elements[0];
2563                 for (i = 1;i < numelements;i++)
2564                 {
2565                         e = elements[i];
2566                         firstvertex = min(firstvertex, e);
2567                         lastvertex = max(lastvertex, e);
2568                 }
2569         }
2570         else
2571                 firstvertex = lastvertex = 0;
2572         if (firstvertexpointer)
2573                 *firstvertexpointer = firstvertex;
2574         if (lastvertexpointer)
2575                 *lastvertexpointer = lastvertex;
2576 }
2577
2578 void Mod_MakeSortedSurfaces(dp_model_t *mod)
2579 {
2580         // make an optimal set of texture-sorted batches to draw...
2581         int j, t;
2582         int *firstsurfacefortexture;
2583         int *numsurfacesfortexture;
2584         if (!mod->sortedmodelsurfaces)
2585                 mod->sortedmodelsurfaces = (int *) Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->sortedmodelsurfaces));
2586         firstsurfacefortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*firstsurfacefortexture));
2587         numsurfacesfortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*numsurfacesfortexture));
2588         memset(numsurfacesfortexture, 0, mod->num_textures * sizeof(*numsurfacesfortexture));
2589         for (j = 0;j < mod->nummodelsurfaces;j++)
2590         {
2591                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2592                 int t = (int)(surface->texture - mod->data_textures);
2593                 numsurfacesfortexture[t]++;
2594         }
2595         j = 0;
2596         for (t = 0;t < mod->num_textures;t++)
2597         {
2598                 firstsurfacefortexture[t] = j;
2599                 j += numsurfacesfortexture[t];
2600         }
2601         for (j = 0;j < mod->nummodelsurfaces;j++)
2602         {
2603                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2604                 int t = (int)(surface->texture - mod->data_textures);
2605                 mod->sortedmodelsurfaces[firstsurfacefortexture[t]++] = j + mod->firstmodelsurface;
2606         }
2607         Mem_Free(firstsurfacefortexture);
2608         Mem_Free(numsurfacesfortexture);
2609 }
2610
2611 void Mod_BuildVBOs(void)
2612 {
2613         if (gl_paranoid.integer && loadmodel->surfmesh.data_element3s && loadmodel->surfmesh.data_element3i)
2614         {
2615                 int i;
2616                 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2617                 {
2618                         if (loadmodel->surfmesh.data_element3s[i] != loadmodel->surfmesh.data_element3i[i])
2619                         {
2620                                 Con_Printf("Mod_BuildVBOs: element %u is incorrect (%u should be %u)\n", i, loadmodel->surfmesh.data_element3s[i], loadmodel->surfmesh.data_element3i[i]);
2621                                 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2622                         }
2623                 }
2624         }
2625
2626         if (!vid.support.arb_vertex_buffer_object)
2627                 return;
2628         // only build a vbo if one has not already been created (this is important for brush models which load specially)
2629         if (loadmodel->surfmesh.vbo)
2630                 return;
2631
2632         // element buffer is easy because it's just one array
2633         if (loadmodel->surfmesh.num_triangles)
2634         {
2635                 if (loadmodel->surfmesh.data_element3s)
2636                         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);
2637                 else
2638                         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);
2639         }
2640
2641         // vertex buffer is several arrays and we put them in the same buffer
2642         //
2643         // is this wise?  the texcoordtexture2f array is used with dynamic
2644         // vertex/svector/tvector/normal when rendering animated models, on the
2645         // other hand animated models don't use a lot of vertices anyway...
2646         if (loadmodel->surfmesh.num_vertices)
2647         {
2648                 size_t size;
2649                 unsigned char *mem;
2650                 size = 0;
2651                 loadmodel->surfmesh.vbooffset_vertex3f           = size;if (loadmodel->surfmesh.data_vertex3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2652                 loadmodel->surfmesh.vbooffset_svector3f          = size;if (loadmodel->surfmesh.data_svector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2653                 loadmodel->surfmesh.vbooffset_tvector3f          = size;if (loadmodel->surfmesh.data_tvector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2654                 loadmodel->surfmesh.vbooffset_normal3f           = size;if (loadmodel->surfmesh.data_normal3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2655                 loadmodel->surfmesh.vbooffset_texcoordtexture2f  = size;if (loadmodel->surfmesh.data_texcoordtexture2f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2656                 loadmodel->surfmesh.vbooffset_texcoordlightmap2f = size;if (loadmodel->surfmesh.data_texcoordlightmap2f) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2657                 loadmodel->surfmesh.vbooffset_lightmapcolor4f    = size;if (loadmodel->surfmesh.data_lightmapcolor4f   ) size += loadmodel->surfmesh.num_vertices * sizeof(float[4]);
2658                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
2659                 if (loadmodel->surfmesh.data_vertex3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_vertex3f          , loadmodel->surfmesh.data_vertex3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2660                 if (loadmodel->surfmesh.data_svector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_svector3f         , loadmodel->surfmesh.data_svector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2661                 if (loadmodel->surfmesh.data_tvector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_tvector3f         , loadmodel->surfmesh.data_tvector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2662                 if (loadmodel->surfmesh.data_normal3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_normal3f          , loadmodel->surfmesh.data_normal3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2663                 if (loadmodel->surfmesh.data_texcoordtexture2f ) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordtexture2f , loadmodel->surfmesh.data_texcoordtexture2f , loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2664                 if (loadmodel->surfmesh.data_texcoordlightmap2f) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordlightmap2f, loadmodel->surfmesh.data_texcoordlightmap2f, loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2665                 if (loadmodel->surfmesh.data_lightmapcolor4f   ) memcpy(mem + loadmodel->surfmesh.vbooffset_lightmapcolor4f   , loadmodel->surfmesh.data_lightmapcolor4f   , loadmodel->surfmesh.num_vertices * sizeof(float[4]));
2666                 loadmodel->surfmesh.vbo = R_Mesh_CreateStaticBufferObject(GL_ARRAY_BUFFER_ARB, mem, size, loadmodel->name);
2667                 Mem_Free(mem);
2668         }
2669 }
2670
2671 static void Mod_Decompile_OBJ(dp_model_t *model, const char *filename, const char *mtlfilename, const char *originalfilename)
2672 {
2673         int vertexindex, surfaceindex, triangleindex, textureindex, countvertices = 0, countsurfaces = 0, countfaces = 0, counttextures = 0;
2674         int a, b, c;
2675         const char *texname;
2676         const int *e;
2677         const float *v, *vn, *vt;
2678         size_t l;
2679         size_t outbufferpos = 0;
2680         size_t outbuffermax = 0x100000;
2681         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
2682         const msurface_t *surface;
2683         const int maxtextures = 256;
2684         char *texturenames = (char *) Z_Malloc(maxtextures * MAX_QPATH);
2685
2686         // construct the mtllib file
2687         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "# mtllib for %s exported by darkplaces engine\n", originalfilename);
2688         if (l > 0)
2689                 outbufferpos += l;
2690         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
2691         {
2692                 countsurfaces++;
2693                 countvertices += surface->num_vertices;
2694                 countfaces += surface->num_triangles;
2695                 texname = (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default";
2696                 for (textureindex = 0;textureindex < counttextures;textureindex++)
2697                         if (!strcmp(texturenames + textureindex * MAX_QPATH, texname))
2698                                 break;
2699                 if (textureindex < counttextures)
2700                         continue; // already wrote this material entry
2701                 if (textureindex >= maxtextures)
2702                         continue; // just a precaution
2703                 textureindex = counttextures++;
2704                 strlcpy(texturenames + textureindex * MAX_QPATH, texname, MAX_QPATH);
2705                 if (outbufferpos >= outbuffermax >> 1)
2706                 {
2707                         outbuffermax *= 2;
2708                         oldbuffer = outbuffer;
2709                         outbuffer = (char *) Z_Malloc(outbuffermax);
2710                         memcpy(outbuffer, oldbuffer, outbufferpos);
2711                         Z_Free(oldbuffer);
2712                 }
2713                 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");
2714                 if (l > 0)
2715                         outbufferpos += l;
2716         }
2717
2718         // write the mtllib file
2719         FS_WriteFile(mtlfilename, outbuffer, outbufferpos);
2720         outbufferpos = 0;
2721
2722         // construct the obj file
2723         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);
2724         if (l > 0)
2725                 outbufferpos += l;
2726         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)
2727         {
2728                 if (outbufferpos >= outbuffermax >> 1)
2729                 {
2730                         outbuffermax *= 2;
2731                         oldbuffer = outbuffer;
2732                         outbuffer = (char *) Z_Malloc(outbuffermax);
2733                         memcpy(outbuffer, oldbuffer, outbufferpos);
2734                         Z_Free(oldbuffer);
2735                 }
2736                 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]);
2737                 if (l > 0)
2738                         outbufferpos += l;
2739         }
2740         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
2741         {
2742                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "usemtl %s\n", (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default");
2743                 if (l > 0)
2744                         outbufferpos += l;
2745                 for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
2746                 {
2747                         if (outbufferpos >= outbuffermax >> 1)
2748                         {
2749                                 outbuffermax *= 2;
2750                                 oldbuffer = outbuffer;
2751                                 outbuffer = (char *) Z_Malloc(outbuffermax);
2752                                 memcpy(outbuffer, oldbuffer, outbufferpos);
2753                                 Z_Free(oldbuffer);
2754                         }
2755                         a = e[0]+1;
2756                         b = e[2]+1;
2757                         c = e[1]+1;
2758                         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);
2759                         if (l > 0)
2760                                 outbufferpos += l;
2761                 }
2762         }
2763
2764         // write the obj file
2765         FS_WriteFile(filename, outbuffer, outbufferpos);
2766
2767         // clean up
2768         Z_Free(outbuffer);
2769         Z_Free(texturenames);
2770
2771         // print some stats
2772         Con_Printf("Wrote %s (%i bytes, %i vertices, %i faces, %i surfaces with %i distinct textures)\n", filename, (int)outbufferpos, countvertices, countfaces, countsurfaces, counttextures);
2773 }
2774
2775 static void Mod_Decompile_SMD(dp_model_t *model, const char *filename, int firstpose, int numposes, qboolean writetriangles)
2776 {
2777         int countnodes = 0, counttriangles = 0, countframes = 0;
2778         int surfaceindex;
2779         int triangleindex;
2780         int transformindex;
2781         int poseindex;
2782         int cornerindex;
2783         const int *e;
2784         size_t l;
2785         size_t outbufferpos = 0;
2786         size_t outbuffermax = 0x100000;
2787         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
2788         const msurface_t *surface;
2789         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "version 1\nnodes\n");
2790         if (l > 0)
2791                 outbufferpos += l;
2792         for (transformindex = 0;transformindex < model->num_bones;transformindex++)
2793         {
2794                 if (outbufferpos >= outbuffermax >> 1)
2795                 {
2796                         outbuffermax *= 2;
2797                         oldbuffer = outbuffer;
2798                         outbuffer = (char *) Z_Malloc(outbuffermax);
2799                         memcpy(outbuffer, oldbuffer, outbufferpos);
2800                         Z_Free(oldbuffer);
2801                 }
2802                 countnodes++;
2803                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i \"%s\" %3i\n", transformindex, model->data_bones[transformindex].name, model->data_bones[transformindex].parent);
2804                 if (l > 0)
2805                         outbufferpos += l;
2806         }
2807         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\nskeleton\n");
2808         if (l > 0)
2809                 outbufferpos += l;
2810         for (poseindex = 0;poseindex < numposes;poseindex++)
2811         {
2812                 countframes++;
2813                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "time %i\n", poseindex);
2814                 if (l > 0)
2815                         outbufferpos += l;
2816                 for (transformindex = 0;transformindex < model->num_bones;transformindex++)
2817                 {
2818                         float angles[3];
2819                         float mtest[4][3];
2820                         matrix4x4_t posematrix;
2821                         if (outbufferpos >= outbuffermax >> 1)
2822                         {
2823                                 outbuffermax *= 2;
2824                                 oldbuffer = outbuffer;
2825                                 outbuffer = (char *) Z_Malloc(outbuffermax);
2826                                 memcpy(outbuffer, oldbuffer, outbufferpos);
2827                                 Z_Free(oldbuffer);
2828                         }
2829
2830                         // strangely the smd angles are for a transposed matrix, so we
2831                         // have to generate a transposed matrix, then convert that...
2832                         Matrix4x4_FromBonePose6s(&posematrix, model->num_posescale, model->data_poses6s + 6*(model->num_bones * poseindex + transformindex));
2833                         Matrix4x4_ToArray12FloatGL(&posematrix, mtest[0]);
2834                         AnglesFromVectors(angles, mtest[0], mtest[2], false);
2835                         if (angles[0] >= 180) angles[0] -= 360;
2836                         if (angles[1] >= 180) angles[1] -= 360;
2837                         if (angles[2] >= 180) angles[2] -= 360;
2838
2839 #if 0
2840 {
2841                         float a = DEG2RAD(angles[ROLL]);
2842                         float b = DEG2RAD(angles[PITCH]);
2843                         float c = DEG2RAD(angles[YAW]);
2844                         float cy, sy, cp, sp, cr, sr;
2845                         float test[4][3];
2846                         // smd matrix construction, for comparing
2847                         sy = sin(c);
2848                         cy = cos(c);
2849                         sp = sin(b);
2850                         cp = cos(b);
2851                         sr = sin(a);
2852                         cr = cos(a);
2853
2854                         test[0][0] = cp*cy;
2855                         test[0][1] = cp*sy;
2856                         test[0][2] = -sp;
2857                         test[1][0] = sr*sp*cy+cr*-sy;
2858                         test[1][1] = sr*sp*sy+cr*cy;
2859                         test[1][2] = sr*cp;
2860                         test[2][0] = (cr*sp*cy+-sr*-sy);
2861                         test[2][1] = (cr*sp*sy+-sr*cy);
2862                         test[2][2] = cr*cp;
2863                         test[3][0] = pose[9];
2864                         test[3][1] = pose[10];
2865                         test[3][2] = pose[11];
2866 }
2867 #endif
2868                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i %f %f %f %f %f %f\n", transformindex, mtest[3][0], mtest[3][1], mtest[3][2], DEG2RAD(angles[ROLL]), DEG2RAD(angles[PITCH]), DEG2RAD(angles[YAW]));
2869                         if (l > 0)
2870                                 outbufferpos += l;
2871                 }
2872         }
2873         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
2874         if (l > 0)
2875                 outbufferpos += l;
2876         if (writetriangles)
2877         {
2878                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "triangles\n");
2879                 if (l > 0)
2880                         outbufferpos += l;
2881                 for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
2882                 {
2883                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
2884                         {
2885                                 counttriangles++;
2886                                 if (outbufferpos >= outbuffermax >> 1)
2887                                 {
2888                                         outbuffermax *= 2;
2889                                         oldbuffer = outbuffer;
2890                                         outbuffer = (char *) Z_Malloc(outbuffermax);
2891                                         memcpy(outbuffer, oldbuffer, outbufferpos);
2892                                         Z_Free(oldbuffer);
2893                                 }
2894                                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%s\n", surface->texture && surface->texture->name[0] ? surface->texture->name : "default.bmp");
2895                                 if (l > 0)
2896                                         outbufferpos += l;
2897                                 for (cornerindex = 0;cornerindex < 3;cornerindex++)
2898                                 {
2899                                         const int index = e[2-cornerindex];
2900                                         const float *v = model->surfmesh.data_vertex3f + index * 3;
2901                                         const float *vn = model->surfmesh.data_normal3f + index * 3;
2902                                         const float *vt = model->surfmesh.data_texcoordtexture2f + index * 2;
2903                                         const int b = model->surfmesh.blends[index];
2904                                         if (b < model->num_bones)
2905                                                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i %f %f %f %f %f %f %f %f\n"                          , b, v[0], v[1], v[2], vn[0], vn[1], vn[2], vt[0], 1 - vt[1]);
2906                                         else
2907                                         {
2908                                                 const blendweights_t *w = model->surfmesh.data_blendweights + b - model->num_bones;
2909                                                 const unsigned char *wi = w->index;
2910                                                 const unsigned char *wf = w->influence;
2911                                             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]/255.0f, wi[1], wf[1]/255.0f, wi[2], wf[2]/255.0f, wi[3], wf[3]/255.0f);
2912                                                 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]/255.0f, wi[1], wf[1]/255.0f, wi[2], wf[2]/255.0f);
2913                                                 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]/255.0f, wi[1], wf[1]/255.0f);
2914                                                 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]);
2915                                         }
2916                                         if (l > 0)
2917                                                 outbufferpos += l;
2918                                 }
2919                         }
2920                 }
2921                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
2922                 if (l > 0)
2923                         outbufferpos += l;
2924         }
2925
2926         FS_WriteFile(filename, outbuffer, outbufferpos);
2927         Z_Free(outbuffer);
2928
2929         Con_Printf("Wrote %s (%i bytes, %i nodes, %i frames, %i triangles)\n", filename, (int)outbufferpos, countnodes, countframes, counttriangles);
2930 }
2931
2932 /*
2933 ================
2934 Mod_Decompile_f
2935
2936 decompiles a model to editable files
2937 ================
2938 */
2939 static void Mod_Decompile_f(void)
2940 {
2941         int i, j, k, l, first, count;
2942         dp_model_t *mod;
2943         char inname[MAX_QPATH];
2944         char outname[MAX_QPATH];
2945         char mtlname[MAX_QPATH];
2946         char basename[MAX_QPATH];
2947         char animname[MAX_QPATH];
2948         char animname2[MAX_QPATH];
2949         char zymtextbuffer[16384];
2950         char dpmtextbuffer[16384];
2951         char framegroupstextbuffer[16384];
2952         int zymtextsize = 0;
2953         int dpmtextsize = 0;
2954         int framegroupstextsize = 0;
2955
2956         if (Cmd_Argc() != 2)
2957         {
2958                 Con_Print("usage: modeldecompile <filename>\n");
2959                 return;
2960         }
2961
2962         strlcpy(inname, Cmd_Argv(1), sizeof(inname));
2963         FS_StripExtension(inname, basename, sizeof(basename));
2964
2965         mod = Mod_ForName(inname, false, true, inname[0] == '*' ? cl.model_name[1] : NULL);
2966         if (mod->brush.submodel)
2967         {
2968                 // if we're decompiling a submodel, be sure to give it a proper name based on its parent
2969                 FS_StripExtension(cl.model_name[1], outname, sizeof(outname));
2970                 dpsnprintf(basename, sizeof(basename), "%s/%s", outname, mod->name);
2971                 outname[0] = 0;
2972         }
2973         if (!mod)
2974         {
2975                 Con_Print("No such model\n");
2976                 return;
2977         }
2978         if (!mod->surfmesh.num_triangles)
2979         {
2980                 Con_Print("Empty model (or sprite)\n");
2981                 return;
2982         }
2983
2984         // export OBJ if possible (not on sprites)
2985         if (mod->surfmesh.num_triangles)
2986         {
2987                 dpsnprintf(outname, sizeof(outname), "%s_decompiled.obj", basename);
2988                 dpsnprintf(mtlname, sizeof(mtlname), "%s_decompiled.mtl", basename);
2989                 Mod_Decompile_OBJ(mod, outname, mtlname, inname);
2990         }
2991
2992         // export SMD if possible (only for skeletal models)
2993         if (mod->surfmesh.num_triangles && mod->num_bones)
2994         {
2995                 dpsnprintf(outname, sizeof(outname), "%s_decompiled/ref1.smd", basename);
2996                 Mod_Decompile_SMD(mod, outname, 0, 1, true);
2997                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "output out.zym\nscale 1\norigin 0 0 0\nmesh ref1.smd\n");
2998                 if (l > 0) zymtextsize += l;
2999                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "outputdir .\nmodel out\nscale 1\norigin 0 0 0\nscene ref1.smd\n");
3000                 if (l > 0) dpmtextsize += l;
3001                 for (i = 0;i < mod->numframes;i = j)
3002                 {
3003                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3004                         first = mod->animscenes[i].firstframe;
3005                         if (mod->animscenes[i].framecount > 1)
3006                         {
3007                                 // framegroup anim
3008                                 count = mod->animscenes[i].framecount;
3009                                 j = i + 1;
3010                         }
3011                         else
3012                         {
3013                                 // individual frame
3014                                 // check for additional frames with same name
3015                                 for (l = 0, k = strlen(animname);animname[l];l++)
3016                                         if ((animname[l] < '0' || animname[l] > '9') && animname[l] != '_')
3017                                                 k = l + 1;
3018                                 animname[k] = 0;
3019                                 count = mod->num_poses - first;
3020                                 for (j = i + 1;j < mod->numframes;j++)
3021                                 {
3022                                         strlcpy(animname2, mod->animscenes[j].name, sizeof(animname2));
3023                                         for (l = 0, k = strlen(animname2);animname2[l];l++)
3024                                                 if ((animname2[l] < '0' || animname2[l] > '9') && animname2[l] != '_')
3025                                                         k = l + 1;
3026                                         animname2[k] = 0;
3027                                         if (strcmp(animname2, animname) || mod->animscenes[j].framecount > 1)
3028                                         {
3029                                                 count = mod->animscenes[j].firstframe - first;
3030                                                 break;
3031                                         }
3032                                 }
3033                                 // if it's only one frame, use the original frame name
3034                                 if (j == i + 1)
3035                                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3036
3037                         }
3038                         dpsnprintf(outname, sizeof(outname), "%s_decompiled/%s.smd", basename, animname);
3039                         Mod_Decompile_SMD(mod, outname, first, count, false);
3040                         if (zymtextsize < (int)sizeof(zymtextbuffer) - 100)
3041                         {
3042                                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3043                                 if (l > 0) zymtextsize += l;
3044                         }
3045                         if (dpmtextsize < (int)sizeof(dpmtextbuffer) - 100)
3046                         {
3047                                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3048                                 if (l > 0) dpmtextsize += l;
3049                         }
3050                         if (framegroupstextsize < (int)sizeof(framegroupstextbuffer) - 100)
3051                         {
3052                                 l = dpsnprintf(framegroupstextbuffer + framegroupstextsize, sizeof(framegroupstextbuffer) - framegroupstextsize, "%d %d %f %d // %s\n", first, count, mod->animscenes[i].framerate, mod->animscenes[i].loop, animname);
3053                                 if (l > 0) framegroupstextsize += l;
3054                         }
3055                 }
3056                 if (zymtextsize)
3057                         FS_WriteFile(va("%s_decompiled/out_zym.txt", basename), zymtextbuffer, (fs_offset_t)zymtextsize);
3058                 if (dpmtextsize)
3059                         FS_WriteFile(va("%s_decompiled/out_dpm.txt", basename), dpmtextbuffer, (fs_offset_t)dpmtextsize);
3060                 if (framegroupstextsize)
3061                         FS_WriteFile(va("%s_decompiled.framegroups", basename), framegroupstextbuffer, (fs_offset_t)framegroupstextsize);
3062         }
3063 }
3064
3065 void Mod_AllocLightmap_Init(mod_alloclightmap_state_t *state, int width, int height)
3066 {
3067         int y;
3068         memset(state, 0, sizeof(*state));
3069         state->width = width;
3070         state->height = height;
3071         state->currentY = 0;
3072         state->rows = Mem_Alloc(loadmodel->mempool, state->height * sizeof(*state->rows));
3073         for (y = 0;y < state->height;y++)
3074         {
3075                 state->rows[y].currentX = 0;
3076                 state->rows[y].rowY = -1;
3077         }
3078 }
3079
3080 void Mod_AllocLightmap_Reset(mod_alloclightmap_state_t *state)
3081 {
3082         int y;
3083         state->currentY = 0;
3084         for (y = 0;y < state->height;y++)
3085         {
3086                 state->rows[y].currentX = 0;
3087                 state->rows[y].rowY = -1;
3088         }
3089 }
3090
3091 void Mod_AllocLightmap_Free(mod_alloclightmap_state_t *state)
3092 {
3093         if (state->rows)
3094                 Mem_Free(state->rows);
3095         memset(state, 0, sizeof(*state));
3096 }
3097
3098 qboolean Mod_AllocLightmap_Block(mod_alloclightmap_state_t *state, int blockwidth, int blockheight, int *outx, int *outy)
3099 {
3100         mod_alloclightmap_row_t *row;
3101         int y;
3102
3103         row = state->rows + blockheight;
3104         if ((row->rowY < 0) || (row->currentX + blockwidth > state->width))
3105         {
3106                 if (state->currentY + blockheight <= state->height)
3107                 {
3108                         // use the current allocation position
3109                         row->rowY = state->currentY;
3110                         row->currentX = 0;
3111                         state->currentY += blockheight;
3112                 }
3113                 else
3114                 {
3115                         // find another position
3116                         for (y = blockheight;y < state->height;y++)
3117                         {
3118                                 if ((state->rows[y].rowY >= 0) && (state->rows[y].currentX + blockwidth <= state->width))
3119                                 {
3120                                         row = state->rows + y;
3121                                         break;
3122                                 }
3123                         }
3124                         if (y == state->height)
3125                                 return false;
3126                 }
3127         }
3128         *outy = row->rowY;
3129         *outx = row->currentX;
3130         row->currentX += blockwidth;
3131
3132         return true;
3133 }
3134
3135 typedef struct lightmapsample_s
3136 {
3137         float pos[3];
3138         float sh1[4][3];
3139         float *vertex_color;
3140         unsigned char *lm_bgr;
3141         unsigned char *lm_dir;
3142 }
3143 lightmapsample_t;
3144
3145 typedef struct lightmapvertex_s
3146 {
3147         int index;
3148         float pos[3];
3149         float normal[3];
3150         float texcoordbase[2];
3151         float texcoordlightmap[2];
3152         float lightcolor[4];
3153 }
3154 lightmapvertex_t;
3155
3156 typedef struct lightmaptriangle_s
3157 {
3158         int triangleindex;
3159         int surfaceindex;
3160         int lightmapindex;
3161         int axis;
3162         int lmoffset[2];
3163         int lmsize[2];
3164         // 2D modelspace coordinates of min corner
3165         // snapped to lightmap grid but not in grid coordinates
3166         float lmbase[2];
3167         // 2D modelspace to lightmap coordinate scale
3168         float lmscale[2];
3169         float vertex[3][3];
3170         float mins[3];
3171         float maxs[3];
3172 }
3173 lightmaptriangle_t;
3174
3175 typedef struct lightmaplight_s
3176 {
3177         float origin[3];
3178         float radius;
3179         float iradius;
3180         float radius2;
3181         float color[3];
3182         svbsp_t svbsp;
3183 }
3184 lightmaplight_t;
3185
3186 lightmaptriangle_t *mod_generatelightmaps_lightmaptriangles;
3187
3188 #define MAX_LIGHTMAPSAMPLES 64
3189 static int mod_generatelightmaps_numoffsets[3];
3190 static float mod_generatelightmaps_offsets[3][MAX_LIGHTMAPSAMPLES][3];
3191
3192 static int mod_generatelightmaps_numlights;
3193 static lightmaplight_t *mod_generatelightmaps_lightinfo;
3194
3195 extern int R_Shadow_GetRTLightInfo(unsigned int lightindex, float *origin, float *radius, float *color);
3196 extern cvar_t r_shadow_lightattenuationdividebias;
3197 extern cvar_t r_shadow_lightattenuationlinearscale;
3198
3199 static void Mod_GenerateLightmaps_LightPoint(dp_model_t *model, const vec3_t pos, vec3_t ambient, vec3_t diffuse, vec3_t lightdir)
3200 {
3201         int i;
3202         int index;
3203         int result;
3204         float relativepoint[3];
3205         float color[3];
3206         float dir[3];
3207         float dist;
3208         float dist2;
3209         float intensity;
3210         float sample[5*3];
3211         float lightorigin[3];
3212         float lightradius;
3213         float lightradius2;
3214         float lightiradius;
3215         float lightcolor[3];
3216         trace_t trace;
3217         for (i = 0;i < 5*3;i++)
3218                 sample[i] = 0.0f;
3219         for (index = 0;;index++)
3220         {
3221                 result = R_Shadow_GetRTLightInfo(index, lightorigin, &lightradius, lightcolor);
3222                 if (result < 0)
3223                         break;
3224                 if (result == 0)
3225                         continue;
3226                 lightradius2 = lightradius * lightradius;
3227                 VectorSubtract(lightorigin, pos, relativepoint);
3228                 dist2 = VectorLength2(relativepoint);
3229                 if (dist2 >= lightradius2)
3230                         continue;
3231                 lightiradius = 1.0f / lightradius;
3232                 dist = sqrt(dist2) * lightiradius;
3233                 intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
3234                 if (intensity <= 0)
3235                         continue;
3236                 if (model && model->TraceLine)
3237                 {
3238                         model->TraceLine(model, NULL, NULL, &trace, pos, lightorigin, SUPERCONTENTS_VISBLOCKERMASK);
3239                         if (trace.fraction < 1)
3240                                 continue;
3241                 }
3242                 // scale down intensity to add to both ambient and diffuse
3243                 //intensity *= 0.5f;
3244                 VectorNormalize(relativepoint);
3245                 VectorScale(lightcolor, intensity, color);
3246                 VectorMA(sample    , 0.5f            , color, sample    );
3247                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3248                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3249                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3250                 // calculate a weighted average light direction as well
3251                 intensity *= VectorLength(color);
3252                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3253         }
3254         // calculate the direction we'll use to reduce the sample to a directional light source
3255         VectorCopy(sample + 12, dir);
3256         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3257         VectorNormalize(dir);
3258         // extract the diffuse color along the chosen direction and scale it
3259         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]);
3260         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]);
3261         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]);
3262         // subtract some of diffuse from ambient
3263         VectorMA(sample, -0.333f, diffuse, ambient);
3264         // store the normalized lightdir
3265         VectorCopy(dir, lightdir);
3266 }
3267
3268 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(const dp_model_t *model, svbsp_t *svbsp, const float *mins, const float *maxs)
3269 {
3270         int surfaceindex;
3271         int triangleindex;
3272         const msurface_t *surface;
3273         const float *vertex3f = model->surfmesh.data_vertex3f;
3274         const int *element3i = model->surfmesh.data_element3i;
3275         const int *e;
3276         float v2[3][3];
3277         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->nummodelsurfaces;surfaceindex++, surface++)
3278         {
3279                 if (!BoxesOverlap(surface->mins, surface->maxs, mins, maxs))
3280                         continue;
3281                 if (surface->texture->basematerialflags & MATERIALFLAG_NOSHADOW)
3282                         continue;
3283                 for (triangleindex = 0, e = element3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3284                 {
3285                         VectorCopy(vertex3f + 3*e[0], v2[0]);
3286                         VectorCopy(vertex3f + 3*e[1], v2[1]);
3287                         VectorCopy(vertex3f + 3*e[2], v2[2]);
3288                         SVBSP_AddPolygon(svbsp, 3, v2[0], true, NULL, NULL, 0);
3289                 }
3290         }
3291 }
3292
3293 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(dp_model_t *model, lightmaplight_t *lightinfo)
3294 {
3295         int maxnodes = 1<<14;
3296         svbsp_node_t *nodes;
3297         float origin[3];
3298         float mins[3];
3299         float maxs[3];
3300         svbsp_t svbsp;
3301         VectorSet(mins, lightinfo->origin[0] - lightinfo->radius, lightinfo->origin[1] - lightinfo->radius, lightinfo->origin[2] - lightinfo->radius);
3302         VectorSet(maxs, lightinfo->origin[0] + lightinfo->radius, lightinfo->origin[1] + lightinfo->radius, lightinfo->origin[2] + lightinfo->radius);
3303         VectorCopy(lightinfo->origin, origin);
3304         nodes = Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3305         for (;;)
3306         {
3307                 SVBSP_Init(&svbsp, origin, maxnodes, nodes);
3308                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(model, &svbsp, mins, maxs);
3309                 if (svbsp.ranoutofnodes)
3310                 {
3311                         maxnodes *= 2;
3312                         if (maxnodes >= 1<<22)
3313                         {
3314                                 Mem_Free(nodes);
3315                                 return;
3316                         }
3317                         Mem_Free(nodes);
3318                         nodes = Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3319                 }
3320                 else
3321                         break;
3322         }
3323         if (svbsp.numnodes > 0)
3324         {
3325                 svbsp.nodes = Mem_Alloc(tempmempool, svbsp.numnodes * sizeof(*nodes));
3326                 memcpy(svbsp.nodes, nodes, svbsp.numnodes * sizeof(*nodes));
3327                 lightinfo->svbsp = svbsp;
3328         }
3329         Mem_Free(nodes);
3330 }
3331
3332 static void Mod_GenerateLightmaps_CreateLights(dp_model_t *model)
3333 {
3334         int index;
3335         int result;
3336         lightmaplight_t *lightinfo;
3337         float origin[3];
3338         float radius;
3339         float color[3];
3340         mod_generatelightmaps_numlights = 0;
3341         for (index = 0;;index++)
3342         {
3343                 result = R_Shadow_GetRTLightInfo(index, origin, &radius, color);
3344                 if (result < 0)
3345                         break;
3346                 if (result > 0)
3347                         mod_generatelightmaps_numlights++;
3348         }
3349         if (mod_generatelightmaps_numlights > 0)
3350         {
3351                 mod_generatelightmaps_lightinfo = Mem_Alloc(tempmempool, mod_generatelightmaps_numlights * sizeof(*mod_generatelightmaps_lightinfo));
3352                 lightinfo = mod_generatelightmaps_lightinfo;
3353                 for (index = 0;;index++)
3354                 {
3355                         result = R_Shadow_GetRTLightInfo(index, lightinfo->origin, &lightinfo->radius, lightinfo->color);
3356                         if (result < 0)
3357                                 break;
3358                         if (result > 0)
3359                                 lightinfo++;
3360                 }
3361         }
3362         for (index = 0, lightinfo = mod_generatelightmaps_lightinfo;index < mod_generatelightmaps_numlights;index++, lightinfo++)
3363         {
3364                 lightinfo->iradius = 1.0f / lightinfo->radius;
3365                 lightinfo->radius2 = lightinfo->radius * lightinfo->radius;
3366                 // TODO: compute svbsp
3367                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(model, lightinfo);
3368         }
3369 }
3370
3371 static void Mod_GenerateLightmaps_DestroyLights(dp_model_t *model)
3372 {
3373         int i;
3374         if (mod_generatelightmaps_lightinfo)
3375         {
3376                 for (i = 0;i < mod_generatelightmaps_numlights;i++)
3377                         if (mod_generatelightmaps_lightinfo[i].svbsp.nodes)
3378                                 Mem_Free(mod_generatelightmaps_lightinfo[i].svbsp.nodes);
3379                 Mem_Free(mod_generatelightmaps_lightinfo);
3380         }
3381         mod_generatelightmaps_lightinfo = NULL;
3382         mod_generatelightmaps_numlights = 0;
3383 }
3384
3385 static qboolean Mod_GenerateLightmaps_SamplePoint_SVBSP(const svbsp_t *svbsp, const float *pos)
3386 {
3387         const svbsp_node_t *node;
3388         const svbsp_node_t *nodes = svbsp->nodes;
3389         int num = 0;
3390         while (num >= 0)
3391         {
3392                 node = nodes + num;
3393                 num = node->children[DotProduct(node->plane, pos) < node->plane[3]];
3394         }
3395         return num == -1; // true if empty, false if solid (shadowed)
3396 }
3397
3398 static void Mod_GenerateLightmaps_SamplePoint(const float *pos, const float *normal, float *sample, int numoffsets, const float *offsets)
3399 {
3400         int i;
3401         float relativepoint[3];
3402         float color[3];
3403         float offsetpos[3];
3404         float dist;
3405         float dist2;
3406         float intensity;
3407         int offsetindex;
3408         int hits;
3409         int tests;
3410         const lightmaplight_t *lightinfo;
3411         trace_t trace;
3412         for (i = 0;i < 5*3;i++)
3413                 sample[i] = 0.0f;
3414         for (i = 0, lightinfo = mod_generatelightmaps_lightinfo;i < mod_generatelightmaps_numlights;i++, lightinfo++)
3415         {
3416                 //R_SampleRTLights(pos, sample, numoffsets, offsets);
3417                 VectorSubtract(lightinfo->origin, pos, relativepoint);
3418                 // don't accept light from behind a surface, it causes bad shading
3419                 if (normal && DotProduct(relativepoint, normal) <= 0)
3420                         continue;
3421                 dist2 = VectorLength2(relativepoint);
3422                 if (dist2 >= lightinfo->radius2)
3423                         continue;
3424                 dist = sqrt(dist2) * lightinfo->iradius;
3425                 intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
3426                 if (intensity <= 0)
3427                         continue;
3428                 if (cl.worldmodel && cl.worldmodel->TraceLine && numoffsets > 0)
3429                 {
3430                         hits = 0;
3431                         tests = 1;
3432                         if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, pos))
3433                                 hits++;
3434                         for (offsetindex = 1;offsetindex < numoffsets;offsetindex++)
3435                         {
3436                                 VectorAdd(pos, offsets + 3*offsetindex, offsetpos);
3437                                 if (!normal)
3438                                 {
3439                                         // for light grid we'd better check visibility of the offset point
3440                                         cl.worldmodel->TraceLine(cl.worldmodel, NULL, NULL, &trace, pos, offsetpos, SUPERCONTENTS_VISBLOCKERMASK);
3441                                         if (trace.fraction < 1)
3442                                                 VectorLerp(pos, trace.fraction, offsetpos, offsetpos);
3443                                 }
3444                                 tests++;
3445                                 if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, offsetpos))
3446                                         hits++;
3447                         }
3448                         if (!hits)
3449                                 continue;
3450                         // scale intensity according to how many rays succeeded
3451                         // we know one test is valid, half of the rest will fail...
3452                         //if (normal && tests > 1)
3453                         //      intensity *= (tests - 1.0f) / tests;
3454                         intensity *= (float)hits / tests;
3455                 }
3456                 // scale down intensity to add to both ambient and diffuse
3457                 //intensity *= 0.5f;
3458                 VectorNormalize(relativepoint);
3459                 VectorScale(lightinfo->color, intensity, color);
3460                 VectorMA(sample    , 0.5f            , color, sample    );
3461                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3462                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3463                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3464                 // calculate a weighted average light direction as well
3465                 intensity *= VectorLength(color);
3466                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3467         }
3468 }
3469
3470 static void Mod_GenerateLightmaps_LightmapSample(const float *pos, const float *normal, unsigned char *lm_bgr, unsigned char *lm_dir)
3471 {
3472         float sample[5*3];
3473         float color[3];
3474         float dir[3];
3475         float f;
3476         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[0], mod_generatelightmaps_offsets[0][0]);
3477         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3478         VectorCopy(sample + 12, dir);
3479         VectorNormalize(dir);
3480         //VectorAdd(dir, normal, dir);
3481         //VectorNormalize(dir);
3482         f = DotProduct(dir, normal);
3483         f = max(0, f) * 255.0f;
3484         VectorScale(sample, f, color);
3485         //VectorCopy(normal, dir);
3486         VectorSet(dir, (dir[0]+1.0f)*127.5f, (dir[1]+1.0f)*127.5f, (dir[2]+1.0f)*127.5f);
3487         lm_bgr[0] = (unsigned char)bound(0.0f, color[2], 255.0f);
3488         lm_bgr[1] = (unsigned char)bound(0.0f, color[1], 255.0f);
3489         lm_bgr[2] = (unsigned char)bound(0.0f, color[0], 255.0f);
3490         lm_bgr[3] = 255;
3491         lm_dir[0] = (unsigned char)dir[2];
3492         lm_dir[1] = (unsigned char)dir[1];
3493         lm_dir[2] = (unsigned char)dir[0];
3494         lm_dir[3] = 255;
3495 }
3496
3497 static void Mod_GenerateLightmaps_VertexSample(const float *pos, const float *normal, float *vertex_color)
3498 {
3499         float sample[5*3];
3500         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[1], mod_generatelightmaps_offsets[1][0]);
3501         VectorCopy(sample, vertex_color);
3502 }
3503
3504 static void Mod_GenerateLightmaps_GridSample(const float *pos, q3dlightgrid_t *s)
3505 {
3506         float sample[5*3];
3507         float ambient[3];
3508         float diffuse[3];
3509         float dir[3];
3510         Mod_GenerateLightmaps_SamplePoint(pos, NULL, sample, mod_generatelightmaps_numoffsets[2], mod_generatelightmaps_offsets[2][0]);
3511         // calculate the direction we'll use to reduce the sample to a directional light source
3512         VectorCopy(sample + 12, dir);
3513         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3514         VectorNormalize(dir);
3515         // extract the diffuse color along the chosen direction and scale it
3516         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]) * 127.5f;
3517         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]) * 127.5f;
3518         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]) * 127.5f;
3519         // scale the ambient from 0-2 to 0-255 and subtract some of diffuse
3520         VectorScale(sample, 127.5f, ambient);
3521         VectorMA(ambient, -0.333f, diffuse, ambient);
3522         // encode to the grid format
3523         s->ambientrgb[0] = (unsigned char)bound(0.0f, ambient[0], 255.0f);
3524         s->ambientrgb[1] = (unsigned char)bound(0.0f, ambient[1], 255.0f);
3525         s->ambientrgb[2] = (unsigned char)bound(0.0f, ambient[2], 255.0f);
3526         s->diffusergb[0] = (unsigned char)bound(0.0f, diffuse[0], 255.0f);
3527         s->diffusergb[1] = (unsigned char)bound(0.0f, diffuse[1], 255.0f);
3528         s->diffusergb[2] = (unsigned char)bound(0.0f, diffuse[2], 255.0f);
3529         if (dir[2] >= 0.99f) {s->diffusepitch = 0;s->diffuseyaw = 0;}
3530         else if (dir[2] <= -0.99f) {s->diffusepitch = 128;s->diffuseyaw = 0;}
3531         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));}
3532 }
3533
3534 static void Mod_GenerateLightmaps_InitSampleOffsets(dp_model_t *model)
3535 {
3536         float radius[3];
3537         float temp[3];
3538         int i, j;
3539         memset(mod_generatelightmaps_offsets, 0, sizeof(mod_generatelightmaps_offsets));
3540         mod_generatelightmaps_numoffsets[0] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_lightmapsamples.integer);
3541         mod_generatelightmaps_numoffsets[1] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_vertexsamples.integer);
3542         mod_generatelightmaps_numoffsets[2] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_gridsamples.integer);
3543         radius[0] = mod_generatelightmaps_lightmapradius.value;
3544         radius[1] = mod_generatelightmaps_vertexradius.value;
3545         radius[2] = mod_generatelightmaps_gridradius.value;
3546         for (i = 0;i < 3;i++)
3547         {
3548                 for (j = 1;j < mod_generatelightmaps_numoffsets[i];j++)
3549                 {
3550                         VectorRandom(temp);
3551                         VectorScale(temp, radius[i], mod_generatelightmaps_offsets[i][j]);
3552                 }
3553         }
3554 }
3555
3556 static void Mod_GenerateLightmaps_DestroyLightmaps(dp_model_t *model)
3557 {
3558         msurface_t *surface;
3559         int surfaceindex;
3560         int i;
3561         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3562         {
3563                 surface = model->data_surfaces + surfaceindex;
3564                 surface->lightmaptexture = NULL;
3565                 surface->deluxemaptexture = NULL;
3566         }
3567         if (model->brushq3.data_lightmaps)
3568         {
3569                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3570                         if (model->brushq3.data_lightmaps[i])
3571                                 R_FreeTexture(model->brushq3.data_lightmaps[i]);
3572                 Mem_Free(model->brushq3.data_lightmaps);
3573                 model->brushq3.data_lightmaps = NULL;
3574         }
3575         if (model->brushq3.data_deluxemaps)
3576         {
3577                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3578                         if (model->brushq3.data_deluxemaps[i])
3579                                 R_FreeTexture(model->brushq3.data_deluxemaps[i]);
3580                 Mem_Free(model->brushq3.data_deluxemaps);
3581                 model->brushq3.data_deluxemaps = NULL;
3582         }
3583 }
3584
3585 static void Mod_GenerateLightmaps_UnweldTriangles(dp_model_t *model)
3586 {
3587         msurface_t *surface;
3588         int surfaceindex;
3589         int vertexindex;
3590         int outvertexindex;
3591         int i;
3592         const int *e;
3593         surfmesh_t oldsurfmesh;
3594         size_t size;
3595         unsigned char *data;
3596         oldsurfmesh = model->surfmesh;
3597         model->surfmesh.num_triangles = oldsurfmesh.num_triangles;
3598         model->surfmesh.num_vertices = oldsurfmesh.num_triangles * 3;
3599         size = 0;
3600         size += model->surfmesh.num_vertices * sizeof(float[3]);
3601         size += model->surfmesh.num_vertices * sizeof(float[3]);
3602         size += model->surfmesh.num_vertices * sizeof(float[3]);
3603         size += model->surfmesh.num_vertices * sizeof(float[3]);
3604         size += model->surfmesh.num_vertices * sizeof(float[2]);
3605         size += model->surfmesh.num_vertices * sizeof(float[2]);
3606         size += model->surfmesh.num_vertices * sizeof(float[4]);
3607         data = (unsigned char *)Mem_Alloc(model->mempool, size);
3608         model->surfmesh.data_vertex3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3609         model->surfmesh.data_normal3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3610         model->surfmesh.data_svector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3611         model->surfmesh.data_tvector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3612         model->surfmesh.data_texcoordtexture2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
3613         model->surfmesh.data_texcoordlightmap2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
3614         model->surfmesh.data_lightmapcolor4f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[4]);
3615         if (model->surfmesh.num_vertices > 65536)
3616                 model->surfmesh.data_element3s = NULL;
3617
3618         if (model->surfmesh.vbo)
3619                 R_Mesh_DestroyBufferObject(model->surfmesh.vbo);
3620         model->surfmesh.vbo = 0;
3621         if (model->surfmesh.ebo3i)
3622                 R_Mesh_DestroyBufferObject(model->surfmesh.ebo3i);
3623         model->surfmesh.ebo3i = 0;
3624         if (model->surfmesh.ebo3s)
3625                 R_Mesh_DestroyBufferObject(model->surfmesh.ebo3s);
3626         model->surfmesh.ebo3s = 0;
3627
3628         // convert all triangles to unique vertex data
3629         outvertexindex = 0;
3630         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3631         {
3632                 surface = model->data_surfaces + surfaceindex;
3633                 surface->num_firstvertex = outvertexindex;
3634                 surface->num_vertices = surface->num_triangles*3;
3635                 e = oldsurfmesh.data_element3i + surface->num_firsttriangle*3;
3636                 for (i = 0;i < surface->num_triangles*3;i++)
3637                 {
3638                         vertexindex = e[i];
3639                         model->surfmesh.data_vertex3f[outvertexindex*3+0] = oldsurfmesh.data_vertex3f[vertexindex*3+0];
3640                         model->surfmesh.data_vertex3f[outvertexindex*3+1] = oldsurfmesh.data_vertex3f[vertexindex*3+1];
3641                         model->surfmesh.data_vertex3f[outvertexindex*3+2] = oldsurfmesh.data_vertex3f[vertexindex*3+2];
3642                         model->surfmesh.data_normal3f[outvertexindex*3+0] = oldsurfmesh.data_normal3f[vertexindex*3+0];
3643                         model->surfmesh.data_normal3f[outvertexindex*3+1] = oldsurfmesh.data_normal3f[vertexindex*3+1];
3644                         model->surfmesh.data_normal3f[outvertexindex*3+2] = oldsurfmesh.data_normal3f[vertexindex*3+2];
3645                         model->surfmesh.data_svector3f[outvertexindex*3+0] = oldsurfmesh.data_svector3f[vertexindex*3+0];
3646                         model->surfmesh.data_svector3f[outvertexindex*3+1] = oldsurfmesh.data_svector3f[vertexindex*3+1];
3647                         model->surfmesh.data_svector3f[outvertexindex*3+2] = oldsurfmesh.data_svector3f[vertexindex*3+2];
3648                         model->surfmesh.data_tvector3f[outvertexindex*3+0] = oldsurfmesh.data_tvector3f[vertexindex*3+0];
3649                         model->surfmesh.data_tvector3f[outvertexindex*3+1] = oldsurfmesh.data_tvector3f[vertexindex*3+1];
3650                         model->surfmesh.data_tvector3f[outvertexindex*3+2] = oldsurfmesh.data_tvector3f[vertexindex*3+2];
3651                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+0];
3652                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+1];
3653                         if (oldsurfmesh.data_texcoordlightmap2f)
3654                         {
3655                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+0];
3656                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+1];
3657                         }
3658                         if (oldsurfmesh.data_lightmapcolor4f)
3659                         {
3660                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+0] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+0];
3661                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+1] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+1];
3662                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+2] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+2];
3663                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+3] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+3];
3664                         }
3665                         else
3666                                 Vector4Set(model->surfmesh.data_lightmapcolor4f + 4*outvertexindex, 1, 1, 1, 1);
3667                         model->surfmesh.data_element3i[surface->num_firsttriangle*3+i] = outvertexindex;
3668                         outvertexindex++;
3669                 }
3670         }
3671         if (model->surfmesh.data_element3s)
3672                 for (i = 0;i < model->surfmesh.num_triangles*3;i++)
3673                         model->surfmesh.data_element3s[i] = model->surfmesh.data_element3i[i];
3674
3675         // find and update all submodels to use this new surfmesh data
3676         for (i = 0;i < model->brush.numsubmodels;i++)
3677                 model->brush.submodels[i]->surfmesh = model->surfmesh;
3678 }
3679
3680 static void Mod_GenerateLightmaps_CreateTriangleInformation(dp_model_t *model)
3681 {
3682         msurface_t *surface;
3683         int surfaceindex;
3684         int i;
3685         int axis;
3686         float normal[3];
3687         const int *e;
3688         lightmaptriangle_t *triangle;
3689         // generate lightmap triangle structs
3690         mod_generatelightmaps_lightmaptriangles = Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
3691         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3692         {
3693                 surface = model->data_surfaces + surfaceindex;
3694                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
3695                 for (i = 0;i < surface->num_triangles;i++)
3696                 {
3697                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
3698                         triangle->triangleindex = surface->num_firsttriangle+i;
3699                         triangle->surfaceindex = surfaceindex;
3700                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+0], triangle->vertex[0]);
3701                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+1], triangle->vertex[1]);
3702                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+2], triangle->vertex[2]);
3703                         // calculate bounds of triangle
3704                         triangle->mins[0] = min(triangle->vertex[0][0], min(triangle->vertex[1][0], triangle->vertex[2][0]));
3705                         triangle->mins[1] = min(triangle->vertex[0][1], min(triangle->vertex[1][1], triangle->vertex[2][1]));
3706                         triangle->mins[2] = min(triangle->vertex[0][2], min(triangle->vertex[1][2], triangle->vertex[2][2]));
3707                         triangle->maxs[0] = max(triangle->vertex[0][0], max(triangle->vertex[1][0], triangle->vertex[2][0]));
3708                         triangle->maxs[1] = max(triangle->vertex[0][1], max(triangle->vertex[1][1], triangle->vertex[2][1]));
3709                         triangle->maxs[2] = max(triangle->vertex[0][2], max(triangle->vertex[1][2], triangle->vertex[2][2]));
3710                         // pick an axial projection based on the triangle normal
3711                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], normal);
3712                         axis = 0;
3713                         if (fabs(normal[1]) > fabs(normal[axis]))
3714                                 axis = 1;
3715                         if (fabs(normal[2]) > fabs(normal[axis]))
3716                                 axis = 2;
3717                         triangle->axis = axis;
3718                 }
3719         }
3720 }
3721
3722 static void Mod_GenerateLightmaps_DestroyTriangleInformation(dp_model_t *model)
3723 {
3724         if (mod_generatelightmaps_lightmaptriangles)
3725                 Mem_Free(mod_generatelightmaps_lightmaptriangles);
3726         mod_generatelightmaps_lightmaptriangles = NULL;
3727 }
3728
3729 float lmaxis[3][3] = {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}};
3730
3731 static void Mod_GenerateLightmaps_CreateLightmaps(dp_model_t *model)
3732 {
3733         msurface_t *surface;
3734         int surfaceindex;
3735         int lightmapindex;
3736         int lightmapnumber;
3737         int i;
3738         int j;
3739         int k;
3740         int x;
3741         int y;
3742         int axis;
3743         int axis1;
3744         int axis2;
3745         int retry;
3746         int pixeloffset;
3747         float trianglenormal[3];
3748         float samplecenter[3];
3749         float samplenormal[3];
3750         float temp[3];
3751         float lmiscale[2];
3752         float slopex;
3753         float slopey;
3754         float slopebase;
3755         float lmscalepixels;
3756         float lmmins;
3757         float lmmaxs;
3758         float lm_basescalepixels;
3759         int lm_borderpixels;
3760         int lm_texturesize;
3761         //int lm_maxpixels;
3762         const int *e;
3763         lightmaptriangle_t *triangle;
3764         unsigned char *lightmappixels;
3765         unsigned char *deluxemappixels;
3766         mod_alloclightmap_state_t lmstate;
3767
3768         // generate lightmap projection information for all triangles
3769         if (model->texturepool == NULL)
3770                 model->texturepool = R_AllocTexturePool();
3771         lm_basescalepixels = 1.0f / max(0.0001f, mod_generatelightmaps_unitspersample.value);
3772         lm_borderpixels = mod_generatelightmaps_borderpixels.integer;
3773         lm_texturesize = bound(lm_borderpixels*2+1, 64, (int)vid.maxtexturesize_2d);
3774         //lm_maxpixels = lm_texturesize-(lm_borderpixels*2+1);
3775         Mod_AllocLightmap_Init(&lmstate, lm_texturesize, lm_texturesize);
3776         lightmapnumber = 0;
3777         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3778         {
3779                 surface = model->data_surfaces + surfaceindex;
3780                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
3781                 lmscalepixels = lm_basescalepixels;
3782                 for (retry = 0;retry < 30;retry++)
3783                 {
3784                         // after a couple failed attempts, degrade quality to make it fit
3785                         if (retry > 1)
3786                                 lmscalepixels *= 0.5f;
3787                         for (i = 0;i < surface->num_triangles;i++)
3788                         {
3789                                 triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
3790                                 triangle->lightmapindex = lightmapnumber;
3791                                 // calculate lightmap bounds in 3D pixel coordinates, limit size,
3792                                 // pick two planar axes for projection
3793                                 // lightmap coordinates here are in pixels
3794                                 // lightmap projections are snapped to pixel grid explicitly, such
3795                                 // that two neighboring triangles sharing an edge and projection
3796                                 // axis will have identical sampl espacing along their shared edge
3797                                 k = 0;
3798                                 for (j = 0;j < 3;j++)
3799                                 {
3800                                         if (j == triangle->axis)
3801                                                 continue;
3802                                         lmmins = floor(triangle->mins[j]*lmscalepixels)-lm_borderpixels;
3803                                         lmmaxs = floor(triangle->maxs[j]*lmscalepixels)+lm_borderpixels;
3804                                         triangle->lmsize[k] = (int)(lmmaxs-lmmins);
3805                                         triangle->lmbase[k] = lmmins/lmscalepixels;
3806                                         triangle->lmscale[k] = lmscalepixels;
3807                                         k++;
3808                                 }
3809                                 if (!Mod_AllocLightmap_Block(&lmstate, triangle->lmsize[0], triangle->lmsize[1], &triangle->lmoffset[0], &triangle->lmoffset[1]))
3810                                         break;
3811                         }
3812                         // if all fit in this texture, we're done with this surface
3813                         if (i == surface->num_triangles)
3814                                 break;
3815                         // if we haven't maxed out the lightmap size yet, we retry the
3816                         // entire surface batch...
3817                         if (lm_texturesize * 2 <= min(mod_generatelightmaps_texturesize.integer, (int)vid.maxtexturesize_2d))
3818                         {
3819                                 lm_texturesize *= 2;
3820                                 surfaceindex = -1;
3821                                 lightmapnumber = 0;
3822                                 Mod_AllocLightmap_Free(&lmstate);
3823                                 Mod_AllocLightmap_Init(&lmstate, lm_texturesize, lm_texturesize);
3824                                 break;
3825                         }
3826                         // if we have maxed out the lightmap size, and this triangle does
3827                         // not fit in the same texture as the rest of the surface, we have
3828                         // to retry the entire surface in a new texture (can only use one)
3829                         // with multiple retries, the lightmap quality degrades until it
3830                         // fits (or gives up)
3831                         if (surfaceindex > 0)
3832                                 lightmapnumber++;
3833                         Mod_AllocLightmap_Reset(&lmstate);
3834                 }
3835         }
3836         lightmapnumber++;
3837         Mod_AllocLightmap_Free(&lmstate);
3838
3839         // now put triangles together into lightmap textures, and do not allow
3840         // triangles of a surface to go into different textures (as that would
3841         // require rewriting the surface list)
3842         model->brushq3.deluxemapping_modelspace = true;
3843         model->brushq3.deluxemapping = true;
3844         model->brushq3.num_mergedlightmaps = lightmapnumber;
3845         model->brushq3.data_lightmaps = Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
3846         model->brushq3.data_deluxemaps = Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
3847         lightmappixels = Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
3848         deluxemappixels = Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
3849         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3850         {
3851                 surface = model->data_surfaces + surfaceindex;
3852                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
3853                 for (i = 0;i < surface->num_triangles;i++)
3854                 {
3855                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
3856                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], trianglenormal);
3857                         VectorNormalize(trianglenormal);
3858                         VectorCopy(trianglenormal, samplenormal); // FIXME: this is supposed to be interpolated per pixel from vertices
3859                         axis = triangle->axis;
3860                         axis1 = axis == 0 ? 1 : 0;
3861                         axis2 = axis == 2 ? 1 : 2;
3862                         lmiscale[0] = 1.0f / triangle->lmscale[0];
3863                         lmiscale[1] = 1.0f / triangle->lmscale[1];
3864                         if (trianglenormal[axis] < 0)
3865                                 VectorNegate(trianglenormal, trianglenormal);
3866                         CrossProduct(lmaxis[axis2], trianglenormal, temp);slopex = temp[axis] / temp[axis1];
3867                         CrossProduct(lmaxis[axis1], trianglenormal, temp);slopey = temp[axis] / temp[axis2];
3868                         slopebase = triangle->vertex[0][axis] - triangle->vertex[0][axis1]*slopex - triangle->vertex[0][axis2]*slopey;
3869                         for (j = 0;j < 3;j++)
3870                         {
3871                                 float *t2f = model->surfmesh.data_texcoordlightmap2f + e[i*3+j]*2;
3872                                 t2f[0] = ((triangle->vertex[j][axis1] - triangle->lmbase[0]) * triangle->lmscale[0] + triangle->lmoffset[0]) / lm_texturesize;
3873                                 t2f[1] = ((triangle->vertex[j][axis2] - triangle->lmbase[1]) * triangle->lmscale[1] + triangle->lmoffset[1]) / lm_texturesize;
3874 #if 0
3875                                 samplecenter[axis1] = (t2f[0]*lm_texturesize-triangle->lmoffset[0])*lmiscale[0] + triangle->lmbase[0];
3876                                 samplecenter[axis2] = (t2f[1]*lm_texturesize-triangle->lmoffset[1])*lmiscale[1] + triangle->lmbase[1];
3877                                 samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
3878                                 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]);
3879 #endif
3880                         }
3881
3882 #if 0
3883                         switch (axis)
3884                         {
3885                         default:
3886                         case 0:
3887                                 forward[0] = 0;
3888                                 forward[1] = 1.0f / triangle->lmscale[0];
3889                                 forward[2] = 0;
3890                                 left[0] = 0;
3891                                 left[1] = 0;
3892                                 left[2] = 1.0f / triangle->lmscale[1];
3893                                 up[0] = 1.0f;
3894                                 up[1] = 0;
3895                                 up[2] = 0;
3896                                 origin[0] = 0;
3897                                 origin[1] = triangle->lmbase[0];
3898                                 origin[2] = triangle->lmbase[1];
3899                                 break;
3900                         case 1:
3901                                 forward[0] = 1.0f / triangle->lmscale[0];
3902                                 forward[1] = 0;
3903                                 forward[2] = 0;
3904                                 left[0] = 0;
3905                                 left[1] = 0;
3906                                 left[2] = 1.0f / triangle->lmscale[1];
3907                                 up[0] = 0;
3908                                 up[1] = 1.0f;
3909                                 up[2] = 0;
3910                                 origin[0] = triangle->lmbase[0];
3911                                 origin[1] = 0;
3912                                 origin[2] = triangle->lmbase[1];
3913                                 break;
3914                         case 2:
3915                                 forward[0] = 1.0f / triangle->lmscale[0];
3916                                 forward[1] = 0;
3917                                 forward[2] = 0;
3918                                 left[0] = 0;
3919                                 left[1] = 1.0f / triangle->lmscale[1];
3920                                 left[2] = 0;
3921                                 up[0] = 0;
3922                                 up[1] = 0;
3923                                 up[2] = 1.0f;
3924                                 origin[0] = triangle->lmbase[0];
3925                                 origin[1] = triangle->lmbase[1];
3926                                 origin[2] = 0;
3927                                 break;
3928                         }
3929                         Matrix4x4_FromVectors(&backmatrix, forward, left, up, origin);
3930 #endif
3931 #define LM_DIST_EPSILON (1.0f / 32.0f)
3932                         for (y = 0;y < triangle->lmsize[1];y++)
3933                         {
3934                                 pixeloffset = ((triangle->lightmapindex * lm_texturesize + y + triangle->lmoffset[1]) * lm_texturesize + triangle->lmoffset[0]) * 4;
3935                                 for (x = 0;x < triangle->lmsize[0];x++, pixeloffset += 4)
3936                                 {
3937                                         samplecenter[axis1] = (x+0.5f)*lmiscale[0] + triangle->lmbase[0];
3938                                         samplecenter[axis2] = (y+0.5f)*lmiscale[1] + triangle->lmbase[1];
3939                                         samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
3940                                         VectorMA(samplecenter, 0.125f, samplenormal, samplecenter);
3941                                         Mod_GenerateLightmaps_LightmapSample(samplecenter, samplenormal, lightmappixels + pixeloffset, deluxemappixels + pixeloffset);
3942                                 }
3943                         }
3944                 }
3945         }
3946
3947         for (lightmapindex = 0;lightmapindex < model->brushq3.num_mergedlightmaps;lightmapindex++)
3948         {
3949                 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);
3950                 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);
3951         }
3952
3953         if (lightmappixels)
3954                 Mem_Free(lightmappixels);
3955         if (deluxemappixels)
3956                 Mem_Free(deluxemappixels);
3957
3958         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3959         {
3960                 surface = model->data_surfaces + surfaceindex;
3961                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
3962                 if (!surface->num_triangles)
3963                         continue;
3964                 lightmapindex = mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle].lightmapindex;
3965                 surface->lightmaptexture = model->brushq3.data_lightmaps[lightmapindex];
3966                 surface->deluxemaptexture = model->brushq3.data_deluxemaps[lightmapindex];
3967                 surface->lightmapinfo = NULL;
3968         }
3969
3970         model->brush.LightPoint = Mod_GenerateLightmaps_LightPoint;
3971         model->brushq1.lightdata = NULL;
3972         model->brushq1.lightmapupdateflags = NULL;
3973         model->brushq1.firstrender = false;
3974         model->brushq1.num_lightstyles = 0;
3975         model->brushq1.data_lightstyleinfo = NULL;
3976         for (i = 0;i < model->brush.numsubmodels;i++)
3977         {
3978                 model->brush.submodels[i]->brushq1.lightmapupdateflags = NULL;
3979                 model->brush.submodels[i]->brushq1.firstrender = false;
3980                 model->brush.submodels[i]->brushq1.num_lightstyles = 0;
3981                 model->brush.submodels[i]->brushq1.data_lightstyleinfo = NULL;
3982         }
3983 }
3984
3985 static void Mod_GenerateLightmaps_UpdateVertexColors(dp_model_t *model)
3986 {
3987         int i;
3988         for (i = 0;i < model->surfmesh.num_vertices;i++)
3989                 Mod_GenerateLightmaps_VertexSample(model->surfmesh.data_vertex3f + 3*i, model->surfmesh.data_normal3f + 3*i, model->surfmesh.data_lightmapcolor4f + 4*i);
3990 }
3991
3992 static void Mod_GenerateLightmaps_UpdateLightGrid(dp_model_t *model)
3993 {
3994         int x;
3995         int y;
3996         int z;
3997         int index = 0;
3998         float pos[3];
3999         for (z = 0;z < model->brushq3.num_lightgrid_isize[2];z++)
4000         {
4001                 pos[2] = (model->brushq3.num_lightgrid_imins[2] + z + 0.5f) * model->brushq3.num_lightgrid_cellsize[2];
4002                 for (y = 0;y < model->brushq3.num_lightgrid_isize[1];y++)
4003                 {
4004                         pos[1] = (model->brushq3.num_lightgrid_imins[1] + y + 0.5f) * model->brushq3.num_lightgrid_cellsize[1];
4005                         for (x = 0;x < model->brushq3.num_lightgrid_isize[0];x++, index++)
4006                         {
4007                                 pos[0] = (model->brushq3.num_lightgrid_imins[0] + x + 0.5f) * model->brushq3.num_lightgrid_cellsize[0];
4008                                 Mod_GenerateLightmaps_GridSample(pos, model->brushq3.data_lightgrid + index);
4009                         }
4010                 }
4011         }
4012 }
4013
4014 extern cvar_t mod_q3bsp_nolightmaps;
4015 static void Mod_GenerateLightmaps(dp_model_t *model)
4016 {
4017         //lightmaptriangle_t *lightmaptriangles = Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4018         dp_model_t *oldloadmodel = loadmodel;
4019         loadmodel = model;
4020
4021         Mod_GenerateLightmaps_InitSampleOffsets(model);
4022         Mod_GenerateLightmaps_DestroyLightmaps(model);
4023         Mod_GenerateLightmaps_UnweldTriangles(model);
4024         Mod_GenerateLightmaps_CreateTriangleInformation(model);
4025         Mod_GenerateLightmaps_CreateLights(model);
4026         if(!mod_q3bsp_nolightmaps.integer)
4027                 Mod_GenerateLightmaps_CreateLightmaps(model);
4028         Mod_GenerateLightmaps_UpdateVertexColors(model);
4029         Mod_GenerateLightmaps_UpdateLightGrid(model);
4030         Mod_GenerateLightmaps_DestroyLights(model);
4031         Mod_GenerateLightmaps_DestroyTriangleInformation(model);
4032
4033         loadmodel = oldloadmodel;
4034 }
4035
4036 static void Mod_GenerateLightmaps_f(void)
4037 {
4038         if (Cmd_Argc() != 1)
4039         {
4040                 Con_Printf("usage: mod_generatelightmaps\n");
4041                 return;
4042         }
4043         if (!cl.worldmodel)
4044         {
4045                 Con_Printf("no worldmodel loaded\n");
4046                 return;
4047         }
4048         Mod_GenerateLightmaps(cl.worldmodel);
4049 }