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 r_mipnormalmaps = {CVAR_SAVE, "r_mipnormalmaps", "1", "mipmaps normalmaps (turning it off looks sharper but may have aliasing)"};
  32 cvar_t mod_generatelightmaps_unitspersample = {CVAR_SAVE, "mod_generatelightmaps_unitspersample", "8", "lightmap resolution"};
  33 cvar_t mod_generatelightmaps_borderpixels = {CVAR_SAVE, "mod_generatelightmaps_borderpixels", "2", "extra space around polygons to prevent sampling artifacts"};
  34 cvar_t mod_generatelightmaps_texturesize = {CVAR_SAVE, "mod_generatelightmaps_texturesize", "1024", "size of lightmap textures"};
  35 cvar_t mod_generatelightmaps_lightmapsamples = {CVAR_SAVE, "mod_generatelightmaps_lightmapsamples", "16", "number of shadow tests done per lightmap pixel"};
  36 cvar_t mod_generatelightmaps_vertexsamples = {CVAR_SAVE, "mod_generatelightmaps_vertexsamples", "16", "number of shadow tests done per vertex"};
  37 cvar_t mod_generatelightmaps_gridsamples = {CVAR_SAVE, "mod_generatelightmaps_gridsamples", "64", "number of shadow tests done per lightgrid cell"};
  38 cvar_t mod_generatelightmaps_lightmapradius = {CVAR_SAVE, "mod_generatelightmaps_lightmapradius", "16", "sampling area around each lightmap pixel"};
  39 cvar_t mod_generatelightmaps_vertexradius = {CVAR_SAVE, "mod_generatelightmaps_vertexradius", "16", "sampling area around each vertex"};
  40 cvar_t mod_generatelightmaps_gridradius = {CVAR_SAVE, "mod_generatelightmaps_gridradius", "64", "sampling area around each lightgrid cell center"};
  41
  42 dp_model_t *loadmodel;
  43
  44 static mempool_t *mod_mempool;
  45 static memexpandablearray_t models;
  46
  47 static mempool_t* q3shaders_mem;
  48 typedef struct q3shader_hash_entry_s
  49 {
  50   q3shaderinfo_t shader;
  51   struct q3shader_hash_entry_s* chain;
  52 } q3shader_hash_entry_t;
  53 #define Q3SHADER_HASH_SIZE  1021
  54 typedef struct q3shader_data_s
  55 {
  56   memexpandablearray_t hash_entries;
  57   q3shader_hash_entry_t hash[Q3SHADER_HASH_SIZE];
  58   memexpandablearray_t char_ptrs;
  59 } q3shader_data_t;
  60 static q3shader_data_t* q3shader_data;
  61
  62 static void mod_start(void)
  63 {
  64         int i, count;
  65         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
  66         dp_model_t *mod;
  67
  68         SCR_PushLoadingScreen(false, "Loading models", 1.0);
  69         count = 0;
  70         for (i = 0;i < nummodels;i++)
  71                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  72                         if (mod->used)
  73                                 ++count;
  74         for (i = 0;i < nummodels;i++)
  75                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  76                         if (mod->used)
  77                         {
  78                                 SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
  79                                 Mod_LoadModel(mod, true, false);
  80                                 SCR_PopLoadingScreen(false);
  81                         }
  82         SCR_PopLoadingScreen(false);
  83 }
  84
  85 static void mod_shutdown(void)
  86 {
  87         int i;
  88         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
  89         dp_model_t *mod;
  90
  91         for (i = 0;i < nummodels;i++)
  92                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && (mod->loaded || mod->mempool))
  93                         Mod_UnloadModel(mod);
  94
  95         Mod_FreeQ3Shaders();
  96         Mod_Skeletal_FreeBuffers();
  97 }
  98
  99 static void mod_newmap(void)
 100 {
 101         msurface_t *surface;
 102         int i, j, k, l, surfacenum, ssize, tsize;
 103         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 104         dp_model_t *mod;
 105
 106         for (i = 0;i < nummodels;i++)
 107         {
 108                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool)
 109                 {
 110                         for (j = 0;j < mod->num_textures && mod->data_textures;j++)
 111                         {
 112                                 // note that materialshaderpass and backgroundshaderpass point to shaderpasses[] and so do the pre/post shader ranges, so this catches all of them...
 113                                 for (l = 0; l < Q3SHADER_MAXLAYERS; l++)
 114                                         if (mod->data_textures[j].shaderpasses[l])
 115                                                 for (k = 0; k < mod->data_textures[j].shaderpasses[l]->numframes; k++)
 116                                                         R_SkinFrame_MarkUsed(mod->data_textures[j].shaderpasses[l]->skinframes[k]);
 117                         }
 118                         if (mod->brush.solidskyskinframe)
 119                                 R_SkinFrame_MarkUsed(mod->brush.solidskyskinframe);
 120                         if (mod->brush.alphaskyskinframe)
 121                                 R_SkinFrame_MarkUsed(mod->brush.alphaskyskinframe);
 122                 }
 123         }
 124
 125         if (!cl_stainmaps_clearonload.integer)
 126                 return;
 127
 128         for (i = 0;i < nummodels;i++)
 129         {
 130                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool && mod->data_surfaces)
 131                 {
 132                         for (surfacenum = 0, surface = mod->data_surfaces;surfacenum < mod->num_surfaces;surfacenum++, surface++)
 133                         {
 134                                 if (surface->lightmapinfo && surface->lightmapinfo->stainsamples)
 135                                 {
 136                                         ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
 137                                         tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
 138                                         memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
 139                                         mod->brushq1.lightmapupdateflags[surfacenum] = true;
 140                                 }
 141                         }
 142                 }
 143         }
 144 }
 145
 146 /*
 147 ===============
 148 Mod_Init
 149 ===============
 150 */
 151 static void Mod_Print(void);
 152 static void Mod_Precache (void);
 153 static void Mod_Decompile_f(void);
 154 static void Mod_GenerateLightmaps_f(void);
 155 void Mod_Init (void)
 156 {
 157         mod_mempool = Mem_AllocPool("modelinfo", 0, NULL);
 158         Mem_ExpandableArray_NewArray(&models, mod_mempool, sizeof(dp_model_t), 16);
 159
 160         Mod_BrushInit();
 161         Mod_AliasInit();
 162         Mod_SpriteInit();
 163
 164         Cvar_RegisterVariable(&r_mipskins);
 165         Cvar_RegisterVariable(&r_mipnormalmaps);
 166         Cvar_RegisterVariable(&mod_generatelightmaps_unitspersample);
 167         Cvar_RegisterVariable(&mod_generatelightmaps_borderpixels);
 168         Cvar_RegisterVariable(&mod_generatelightmaps_texturesize);
 169
 170         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapsamples);
 171         Cvar_RegisterVariable(&mod_generatelightmaps_vertexsamples);
 172         Cvar_RegisterVariable(&mod_generatelightmaps_gridsamples);
 173         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapradius);
 174         Cvar_RegisterVariable(&mod_generatelightmaps_vertexradius);
 175         Cvar_RegisterVariable(&mod_generatelightmaps_gridradius);
 176
 177         Cmd_AddCommand ("modellist", Mod_Print, "prints a list of loaded models");
 178         Cmd_AddCommand ("modelprecache", Mod_Precache, "load a model");
 179         Cmd_AddCommand ("modeldecompile", Mod_Decompile_f, "exports a model in several formats for editing purposes");
 180         Cmd_AddCommand ("mod_generatelightmaps", Mod_GenerateLightmaps_f, "rebuilds lighting on current worldmodel");
 181 }
 182
 183 void Mod_RenderInit(void)
 184 {
 185         R_RegisterModule("Models", mod_start, mod_shutdown, mod_newmap, NULL, NULL);
 186 }
 187
 188 void Mod_UnloadModel (dp_model_t *mod)
 189 {
 190         char name[MAX_QPATH];
 191         qboolean used;
 192         dp_model_t *parentmodel;
 193
 194         if (developer_loading.integer)
 195                 Con_Printf("unloading model %s\n", mod->name);
 196
 197         strlcpy(name, mod->name, sizeof(name));
 198         parentmodel = mod->brush.parentmodel;
 199         used = mod->used;
 200         if (mod->mempool)
 201         {
 202                 if (mod->surfmesh.data_element3i_indexbuffer)
 203                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3i_indexbuffer);
 204                 mod->surfmesh.data_element3i_indexbuffer = NULL;
 205                 if (mod->surfmesh.data_element3s_indexbuffer)
 206                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3s_indexbuffer);
 207                 mod->surfmesh.data_element3s_indexbuffer = NULL;
 208                 if (mod->surfmesh.vbo_vertexbuffer)
 209                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.vbo_vertexbuffer);
 210                 mod->surfmesh.vbo_vertexbuffer = NULL;
 211         }
 212         // free textures/memory attached to the model
 213         R_FreeTexturePool(&mod->texturepool);
 214         Mem_FreePool(&mod->mempool);
 215         // clear the struct to make it available
 216         memset(mod, 0, sizeof(dp_model_t));
 217         // restore the fields we want to preserve
 218         strlcpy(mod->name, name, sizeof(mod->name));
 219         mod->brush.parentmodel = parentmodel;
 220         mod->used = used;
 221         mod->loaded = false;
 222 }
 223
 224 static void R_Model_Null_Draw(entity_render_t *ent)
 225 {
 226         return;
 227 }
 228
 229
 230 typedef void (*mod_framegroupify_parsegroups_t) (unsigned int i, int start, int len, float fps, qboolean loop, const char *name, void *pass);
 231
 232 static int Mod_FrameGroupify_ParseGroups(const char *buf, mod_framegroupify_parsegroups_t cb, void *pass)
 233 {
 234         const char *bufptr;
 235         int start, len;
 236         float fps;
 237         unsigned int i;
 238         qboolean loop;
 239         char name[64];
 240
 241         bufptr = buf;
 242         i = 0;
 243         while(bufptr)
 244         {
 245                 // an anim scene!
 246
 247                 // REQUIRED: fetch start
 248                 COM_ParseToken_Simple(&bufptr, true, false, true);
 249                 if (!bufptr)
 250                         break; // end of file
 251                 if (!strcmp(com_token, "\n"))
 252                         continue; // empty line
 253                 start = atoi(com_token);
 254
 255                 // REQUIRED: fetch length
 256                 COM_ParseToken_Simple(&bufptr, true, false, true);
 257                 if (!bufptr || !strcmp(com_token, "\n"))
 258                 {
 259                         Con_Printf("framegroups file: missing number of frames\n");
 260                         continue;
 261                 }
 262                 len = atoi(com_token);
 263
 264                 // OPTIONAL args start
 265                 COM_ParseToken_Simple(&bufptr, true, false, true);
 266
 267                 // OPTIONAL: fetch fps
 268                 fps = 20;
 269                 if (bufptr && strcmp(com_token, "\n"))
 270                 {
 271                         fps = atof(com_token);
 272                         COM_ParseToken_Simple(&bufptr, true, false, true);
 273                 }
 274
 275                 // OPTIONAL: fetch loopflag
 276                 loop = true;
 277                 if (bufptr && strcmp(com_token, "\n"))
 278                 {
 279                         loop = (atoi(com_token) != 0);
 280                         COM_ParseToken_Simple(&bufptr, true, false, true);
 281                 }
 282
 283                 // OPTIONAL: fetch name
 284                 name[0] = 0;
 285                 if (bufptr && strcmp(com_token, "\n"))
 286                 {
 287                         strlcpy(name, com_token, sizeof(name));
 288                         COM_ParseToken_Simple(&bufptr, true, false, true);
 289                 }
 290
 291                 // OPTIONAL: remaining unsupported tokens (eat them)
 292                 while (bufptr && strcmp(com_token, "\n"))
 293                         COM_ParseToken_Simple(&bufptr, true, false, true);
 294
 295                 //Con_Printf("data: %d %d %d %f %d (%s)\n", i, start, len, fps, loop, name);
 296
 297                 if(cb)
 298                         cb(i, start, len, fps, loop, (name[0] ? name : NULL), pass);
 299                 ++i;
 300         }
 301
 302         return i;
 303 }
 304
 305 static void Mod_FrameGroupify_ParseGroups_Store (unsigned int i, int start, int len, float fps, qboolean loop, const char *name, void *pass)
 306 {
 307         dp_model_t *mod = (dp_model_t *) pass;
 308         animscene_t *anim = &mod->animscenes[i];
 309         if(name)
 310                 strlcpy(anim->name, name, sizeof(anim[i].name));
 311         else
 312                 dpsnprintf(anim->name, sizeof(anim[i].name), "groupified_%d_anim", i);
 313         anim->firstframe = bound(0, start, mod->num_poses - 1);
 314         anim->framecount = bound(1, len, mod->num_poses - anim->firstframe);
 315         anim->framerate = max(1, fps);
 316         anim->loop = !!loop;
 317         //Con_Printf("frame group %d is %d %d %f %d\n", i, start, len, fps, loop);
 318 }
 319
 320 static void Mod_FrameGroupify(dp_model_t *mod, const char *buf)
 321 {
 322         unsigned int cnt;
 323
 324         // 0. count
 325         cnt = Mod_FrameGroupify_ParseGroups(buf, NULL, NULL);
 326         if(!cnt)
 327         {
 328                 Con_Printf("no scene found in framegroups file, aborting\n");
 329                 return;
 330         }
 331         mod->numframes = cnt;
 332
 333         // 1. reallocate
 334         // (we do not free the previous animscenes, but model unloading will free the pool owning them, so it's okay)
 335         mod->animscenes = (animscene_t *) Mem_Alloc(mod->mempool, sizeof(animscene_t) * mod->numframes);
 336
 337         // 2. parse
 338         Mod_FrameGroupify_ParseGroups(buf, Mod_FrameGroupify_ParseGroups_Store, mod);
 339 }
 340
 341 static void Mod_FindPotentialDeforms(dp_model_t *mod)
 342 {
 343         int i, j;
 344         texture_t *texture;
 345         mod->wantnormals = false;
 346         mod->wanttangents = false;
 347         for (i = 0;i < mod->num_textures;i++)
 348         {
 349                 texture = mod->data_textures + i;
 350                 if (texture->materialshaderpass && texture->materialshaderpass->tcgen.tcgen == Q3TCGEN_ENVIRONMENT)
 351                         mod->wantnormals = true;
 352                 if (texture->materialshaderpass && texture->materialshaderpass->tcgen.tcgen == Q3TCGEN_ENVIRONMENT)
 353                         mod->wantnormals = true;
 354                 for (j = 0;j < Q3MAXDEFORMS;j++)
 355                 {
 356                         if (texture->deforms[j].deform == Q3DEFORM_AUTOSPRITE)
 357                         {
 358                                 mod->wanttangents = true;
 359                                 mod->wantnormals = true;
 360                                 break;
 361                         }
 362                         if (texture->deforms[j].deform != Q3DEFORM_NONE)
 363                                 mod->wantnormals = true;
 364                 }
 365         }
 366 }
 367
 368 /*
 369 ==================
 370 Mod_LoadModel
 371
 372 Loads a model
 373 ==================
 374 */
 375 dp_model_t *Mod_LoadModel(dp_model_t *mod, qboolean crash, qboolean checkdisk)
 376 {
 377         int num;
 378         unsigned int crc;
 379         void *buf;
 380         fs_offset_t filesize = 0;
 381         char vabuf[1024];
 382
 383         mod->used = true;
 384
 385         if (mod->name[0] == '*') // submodel
 386                 return mod;
 387
 388         if (!strcmp(mod->name, "null"))
 389         {
 390                 if(mod->loaded)
 391                         return mod;
 392
 393                 if (mod->loaded || mod->mempool)
 394                         Mod_UnloadModel(mod);
 395
 396                 if (developer_loading.integer)
 397                         Con_Printf("loading model %s\n", mod->name);
 398
 399                 mod->used = true;
 400                 mod->crc = (unsigned int)-1;
 401                 mod->loaded = false;
 402
 403                 VectorClear(mod->normalmins);
 404                 VectorClear(mod->normalmaxs);
 405                 VectorClear(mod->yawmins);
 406                 VectorClear(mod->yawmaxs);
 407                 VectorClear(mod->rotatedmins);
 408                 VectorClear(mod->rotatedmaxs);
 409
 410                 mod->modeldatatypestring = "null";
 411                 mod->type = mod_null;
 412                 mod->Draw = R_Model_Null_Draw;
 413                 mod->numframes = 2;
 414                 mod->numskins = 1;
 415
 416                 // no fatal errors occurred, so this model is ready to use.
 417                 mod->loaded = true;
 418
 419                 return mod;
 420         }
 421
 422         crc = 0;
 423         buf = NULL;
 424
 425         // even if the model is loaded it still may need reloading...
 426
 427         // if it is not loaded or checkdisk is true we need to calculate the crc
 428         if (!mod->loaded || checkdisk)
 429         {
 430                 if (checkdisk && mod->loaded)
 431                         Con_DPrintf("checking model %s\n", mod->name);
 432                 buf = FS_LoadFile (mod->name, tempmempool, false, &filesize);
 433                 if (buf)
 434                 {
 435                         crc = CRC_Block((unsigned char *)buf, filesize);
 436                         // we need to reload the model if the crc does not match
 437                         if (mod->crc != crc)
 438                                 mod->loaded = false;
 439                 }
 440         }
 441
 442         // if the model is already loaded and checks passed, just return
 443         if (mod->loaded)
 444         {
 445                 if (buf)
 446                         Mem_Free(buf);
 447                 return mod;
 448         }
 449
 450         if (developer_loading.integer)
 451                 Con_Printf("loading model %s\n", mod->name);
 452
 453         SCR_PushLoadingScreen(true, mod->name, 1);
 454
 455         // LordHavoc: unload the existing model in this slot (if there is one)
 456         if (mod->loaded || mod->mempool)
 457                 Mod_UnloadModel(mod);
 458
 459         // load the model
 460         mod->used = true;
 461         mod->crc = crc;
 462         // errors can prevent the corresponding mod->loaded = true;
 463         mod->loaded = false;
 464
 465         // default lightmap scale
 466         mod->lightmapscale = 1;
 467
 468         // default model radius and bounding box (mainly for missing models)
 469         mod->radius = 16;
 470         VectorSet(mod->normalmins, -mod->radius, -mod->radius, -mod->radius);
 471         VectorSet(mod->normalmaxs, mod->radius, mod->radius, mod->radius);
 472         VectorSet(mod->yawmins, -mod->radius, -mod->radius, -mod->radius);
 473         VectorSet(mod->yawmaxs, mod->radius, mod->radius, mod->radius);
 474         VectorSet(mod->rotatedmins, -mod->radius, -mod->radius, -mod->radius);
 475         VectorSet(mod->rotatedmaxs, mod->radius, mod->radius, mod->radius);
 476
 477         if (!q3shaders_mem)
 478         {
 479                 // load q3 shaders for the first time, or after a level change
 480                 Mod_LoadQ3Shaders();
 481         }
 482
 483         if (buf)
 484         {
 485                 char *bufend = (char *)buf + filesize;
 486
 487                 // all models use memory, so allocate a memory pool
 488                 mod->mempool = Mem_AllocPool(mod->name, 0, NULL);
 489
 490                 num = LittleLong(*((int *)buf));
 491                 // call the apropriate loader
 492                 loadmodel = mod;
 493                 if (!strcasecmp(FS_FileExtension(mod->name), "obj")) Mod_OBJ_Load(mod, buf, bufend);
 494                 else if (!memcmp(buf, "IDPO", 4)) Mod_IDP0_Load(mod, buf, bufend);
 495                 else if (!memcmp(buf, "IDP2", 4)) Mod_IDP2_Load(mod, buf, bufend);
 496                 else if (!memcmp(buf, "IDP3", 4)) Mod_IDP3_Load(mod, buf, bufend);
 497                 else if (!memcmp(buf, "IDSP", 4)) Mod_IDSP_Load(mod, buf, bufend);
 498                 else if (!memcmp(buf, "IDS2", 4)) Mod_IDS2_Load(mod, buf, bufend);
 499                 else if (!memcmp(buf, "IBSP", 4)) Mod_IBSP_Load(mod, buf, bufend);
 500                 else if (!memcmp(buf, "ZYMOTICMODEL", 12)) Mod_ZYMOTICMODEL_Load(mod, buf, bufend);
 501                 else if (!memcmp(buf, "DARKPLACESMODEL", 16)) Mod_DARKPLACESMODEL_Load(mod, buf, bufend);
 502                 else if (!memcmp(buf, "ACTRHEAD", 8)) Mod_PSKMODEL_Load(mod, buf, bufend);
 503                 else if (!memcmp(buf, "INTERQUAKEMODEL", 16)) Mod_INTERQUAKEMODEL_Load(mod, buf, bufend);
 504                 else if (strlen(mod->name) >= 4 && !strcmp(mod->name + strlen(mod->name) - 4, ".map")) Mod_MAP_Load(mod, buf, bufend);
 505                 else if (num == BSPVERSION || num == 30 || !memcmp(buf, "BSP2", 4) || !memcmp(buf, "2PSB", 4)) Mod_Q1BSP_Load(mod, buf, bufend);
 506                 else Con_Printf("Mod_LoadModel: model \"%s\" is of unknown/unsupported type\n", mod->name);
 507                 Mem_Free(buf);
 508
 509                 Mod_FindPotentialDeforms(mod);
 510
 511                 buf = FS_LoadFile(va(vabuf, sizeof(vabuf), "%s.framegroups", mod->name), tempmempool, false, &filesize);
 512                 if(buf)
 513                 {
 514                         Mod_FrameGroupify(mod, (const char *)buf);
 515                         Mem_Free(buf);
 516                 }
 517
 518                 Mod_BuildVBOs();
 519         }
 520         else if (crash)
 521         {
 522                 // LordHavoc: Sys_Error was *ANNOYING*
 523                 Con_Printf ("Mod_LoadModel: %s not found\n", mod->name);
 524         }
 525
 526         // no fatal errors occurred, so this model is ready to use.
 527         mod->loaded = true;
 528
 529         SCR_PopLoadingScreen(false);
 530
 531         return mod;
 532 }
 533
 534 void Mod_ClearUsed(void)
 535 {
 536         int i;
 537         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 538         dp_model_t *mod;
 539         for (i = 0;i < nummodels;i++)
 540                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0])
 541                         mod->used = false;
 542 }
 543
 544 void Mod_PurgeUnused(void)
 545 {
 546         int i;
 547         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 548         dp_model_t *mod;
 549         for (i = 0;i < nummodels;i++)
 550         {
 551                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !mod->used)
 552                 {
 553                         Mod_UnloadModel(mod);
 554                         Mem_ExpandableArray_FreeRecord(&models, mod);
 555                 }
 556         }
 557 }
 558
 559 /*
 560 ==================
 561 Mod_FindName
 562
 563 ==================
 564 */
 565 dp_model_t *Mod_FindName(const char *name, const char *parentname)
 566 {
 567         int i;
 568         int nummodels;
 569         dp_model_t *mod;
 570
 571         if (!parentname)
 572                 parentname = "";
 573
 574         // if we're not dedicatd, the renderer calls will crash without video
 575         Host_StartVideo();
 576
 577         nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 578
 579         if (!name[0])
 580                 Host_Error ("Mod_ForName: empty name");
 581
 582         // search the currently loaded models
 583         for (i = 0;i < nummodels;i++)
 584         {
 585                 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))))
 586                 {
 587                         mod->used = true;
 588                         return mod;
 589                 }
 590         }
 591
 592         // no match found, create a new one
 593         mod = (dp_model_t *) Mem_ExpandableArray_AllocRecord(&models);
 594         strlcpy(mod->name, name, sizeof(mod->name));
 595         if (parentname[0])
 596                 mod->brush.parentmodel = Mod_FindName(parentname, NULL);
 597         else
 598                 mod->brush.parentmodel = NULL;
 599         mod->loaded = false;
 600         mod->used = true;
 601         return mod;
 602 }
 603
 604 /*
 605 ==================
 606 Mod_ForName
 607
 608 Loads in a model for the given name
 609 ==================
 610 */
 611 dp_model_t *Mod_ForName(const char *name, qboolean crash, qboolean checkdisk, const char *parentname)
 612 {
 613         dp_model_t *model;
 614         model = Mod_FindName(name, parentname);
 615         if (!model->loaded || checkdisk)
 616                 Mod_LoadModel(model, crash, checkdisk);
 617         return model;
 618 }
 619
 620 /*
 621 ==================
 622 Mod_Reload
 623
 624 Reloads all models if they have changed
 625 ==================
 626 */
 627 void Mod_Reload(void)
 628 {
 629         int i, count;
 630         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 631         dp_model_t *mod;
 632
 633         SCR_PushLoadingScreen(false, "Reloading models", 1.0);
 634         count = 0;
 635         for (i = 0;i < nummodels;i++)
 636                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 637                         ++count;
 638         for (i = 0;i < nummodels;i++)
 639                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 640                 {
 641                         SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
 642                         Mod_LoadModel(mod, true, true);
 643                         SCR_PopLoadingScreen(false);
 644                 }
 645         SCR_PopLoadingScreen(false);
 646 }
 647
 648 unsigned char *mod_base;
 649
 650
 651 //=============================================================================
 652
 653 /*
 654 ================
 655 Mod_Print
 656 ================
 657 */
 658 static void Mod_Print(void)
 659 {
 660         int i;
 661         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 662         dp_model_t *mod;
 663
 664         Con_Print("Loaded models:\n");
 665         for (i = 0;i < nummodels;i++)
 666         {
 667                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
 668                 {
 669                         if (mod->brush.numsubmodels)
 670                                 Con_Printf("%4iK %s (%i submodels)\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name, mod->brush.numsubmodels);
 671                         else
 672                                 Con_Printf("%4iK %s\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name);
 673                 }
 674         }
 675 }
 676
 677 /*
 678 ================
 679 Mod_Precache
 680 ================
 681 */
 682 static void Mod_Precache(void)
 683 {
 684         if (Cmd_Argc() == 2)
 685                 Mod_ForName(Cmd_Argv(1), false, true, Cmd_Argv(1)[0] == '*' ? cl.model_name[1] : NULL);
 686         else
 687                 Con_Print("usage: modelprecache <filename>\n");
 688 }
 689
 690 int Mod_BuildVertexRemapTableFromElements(int numelements, const int *elements, int numvertices, int *remapvertices)
 691 {
 692         int i, count;
 693         unsigned char *used;
 694         used = (unsigned char *)Mem_Alloc(tempmempool, numvertices);
 695         memset(used, 0, numvertices);
 696         for (i = 0;i < numelements;i++)
 697                 used[elements[i]] = 1;
 698         for (i = 0, count = 0;i < numvertices;i++)
 699                 remapvertices[i] = used[i] ? count++ : -1;
 700         Mem_Free(used);
 701         return count;
 702 }
 703
 704 qboolean Mod_ValidateElements(int *element3i, unsigned short *element3s, int numtriangles, int firstvertex, int numvertices, const char *filename, int fileline)
 705 {
 706         int first = firstvertex, last = first + numvertices - 1, numelements = numtriangles * 3;
 707         int i;
 708         int invalidintcount = 0, invalidintexample = 0;
 709         int invalidshortcount = 0, invalidshortexample = 0;
 710         int invalidmismatchcount = 0, invalidmismatchexample = 0;
 711         if (element3i)
 712         {
 713                 for (i = 0; i < numelements; i++)
 714                 {
 715                         if (element3i[i] < first || element3i[i] > last)
 716                         {
 717                                 invalidintcount++;
 718                                 invalidintexample = i;
 719                         }
 720                 }
 721         }
 722         if (element3s)
 723         {
 724                 for (i = 0; i < numelements; i++)
 725                 {
 726                         if (element3s[i] < first || element3s[i] > last)
 727                         {
 728                                 invalidintcount++;
 729                                 invalidintexample = i;
 730                         }
 731                 }
 732         }
 733         if (element3i && element3s)
 734         {
 735                 for (i = 0; i < numelements; i++)
 736                 {
 737                         if (element3s[i] != element3i[i])
 738                         {
 739                                 invalidmismatchcount++;
 740                                 invalidmismatchexample = i;
 741                         }
 742                 }
 743         }
 744         if (invalidintcount || invalidshortcount || invalidmismatchcount)
 745         {
 746                 Con_Printf("Mod_ValidateElements(%i, %i, %i, %p, %p) called at %s:%d", numelements, first, last, element3i, element3s, filename, fileline);
 747                 Con_Printf(", %i elements are invalid in element3i (example: element3i[%i] == %i)", invalidintcount, invalidintexample, element3i ? element3i[invalidintexample] : 0);
 748                 Con_Printf(", %i elements are invalid in element3s (example: element3s[%i] == %i)", invalidshortcount, invalidshortexample, element3s ? element3s[invalidshortexample] : 0);
 749                 Con_Printf(", %i elements mismatch between element3i and element3s (example: element3s[%i] is %i and element3i[i] is %i)", invalidmismatchcount, invalidmismatchexample, element3i ? element3i[invalidmismatchexample] : 0, invalidmismatchexample, element3s ? element3s[invalidmismatchexample] : 0);
 750                 Con_Print(".  Please debug the engine code - these elements have been modified to not crash, but nothing more.\n");
 751
 752                 // edit the elements to make them safer, as the driver will crash otherwise
 753                 if (element3i)
 754                         for (i = 0; i < numelements; i++)
 755                                 if (element3i[i] < first || element3i[i] > last)
 756                                         element3i[i] = first;
 757                 if (element3s)
 758                         for (i = 0; i < numelements; i++)
 759                                 if (element3s[i] < first || element3s[i] > last)
 760                                         element3s[i] = first;
 761                 if (element3i && element3s)
 762                         for (i = 0; i < numelements; i++)
 763                                 if (element3s[i] != element3i[i])
 764                                         element3s[i] = element3i[i];
 765
 766                 return false;
 767         }
 768         return true;
 769 }
 770
 771 // warning: this is an expensive function!
 772 void Mod_BuildNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const int *elements, float *normal3f, qboolean areaweighting)
 773 {
 774         int i, j;
 775         const int *element;
 776         float *vectorNormal;
 777         float areaNormal[3];
 778         // clear the vectors
 779         memset(normal3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 780         // process each vertex of each triangle and accumulate the results
 781         // use area-averaging, to make triangles with a big area have a bigger
 782         // weighting on the vertex normal than triangles with a small area
 783         // to do so, just add the 'normals' together (the bigger the area
 784         // the greater the length of the normal is
 785         element = elements;
 786         for (i = 0; i < numtriangles; i++, element += 3)
 787         {
 788                 TriangleNormal(
 789                         vertex3f + element[0] * 3,
 790                         vertex3f + element[1] * 3,
 791                         vertex3f + element[2] * 3,
 792                         areaNormal
 793                         );
 794
 795                 if (!areaweighting)
 796                         VectorNormalize(areaNormal);
 797
 798                 for (j = 0;j < 3;j++)
 799                 {
 800                         vectorNormal = normal3f + element[j] * 3;
 801                         vectorNormal[0] += areaNormal[0];
 802                         vectorNormal[1] += areaNormal[1];
 803                         vectorNormal[2] += areaNormal[2];
 804                 }
 805         }
 806         // and just normalize the accumulated vertex normal in the end
 807         vectorNormal = normal3f + 3 * firstvertex;
 808         for (i = 0; i < numvertices; i++, vectorNormal += 3)
 809                 VectorNormalize(vectorNormal);
 810 }
 811
 812 #if 0
 813 static 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)
 814 {
 815         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 816         // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 817         // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 818
 819         // 6 multiply, 9 subtract
 820         VectorSubtract(v1, v0, v10);
 821         VectorSubtract(v2, v0, v20);
 822         normal3f[0] = v20[1] * v10[2] - v20[2] * v10[1];
 823         normal3f[1] = v20[2] * v10[0] - v20[0] * v10[2];
 824         normal3f[2] = v20[0] * v10[1] - v20[1] * v10[0];
 825         // 12 multiply, 10 subtract
 826         tc10[1] = tc1[1] - tc0[1];
 827         tc20[1] = tc2[1] - tc0[1];
 828         svector3f[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 829         svector3f[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 830         svector3f[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 831         tc10[0] = tc1[0] - tc0[0];
 832         tc20[0] = tc2[0] - tc0[0];
 833         tvector3f[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 834         tvector3f[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 835         tvector3f[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 836         // 12 multiply, 4 add, 6 subtract
 837         f = DotProduct(svector3f, normal3f);
 838         svector3f[0] -= f * normal3f[0];
 839         svector3f[1] -= f * normal3f[1];
 840         svector3f[2] -= f * normal3f[2];
 841         f = DotProduct(tvector3f, normal3f);
 842         tvector3f[0] -= f * normal3f[0];
 843         tvector3f[1] -= f * normal3f[1];
 844         tvector3f[2] -= f * normal3f[2];
 845         // if texture is mapped the wrong way (counterclockwise), the tangents
 846         // have to be flipped, this is detected by calculating a normal from the
 847         // two tangents, and seeing if it is opposite the surface normal
 848         // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 849         CrossProduct(tvector3f, svector3f, tangentcross);
 850         if (DotProduct(tangentcross, normal3f) < 0)
 851         {
 852                 VectorNegate(svector3f, svector3f);
 853                 VectorNegate(tvector3f, tvector3f);
 854         }
 855 }
 856 #endif
 857
 858 // warning: this is a very expensive function!
 859 void Mod_BuildTextureVectorsFromNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const float *texcoord2f, const float *normal3f, const int *elements, float *svector3f, float *tvector3f, qboolean areaweighting)
 860 {
 861         int i, tnum;
 862         float sdir[3], tdir[3], normal[3], *svec, *tvec;
 863         const float *v0, *v1, *v2, *tc0, *tc1, *tc2, *n;
 864         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 865         const int *e;
 866         // clear the vectors
 867         memset(svector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 868         memset(tvector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 869         // process each vertex of each triangle and accumulate the results
 870         for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
 871         {
 872                 v0 = vertex3f + e[0] * 3;
 873                 v1 = vertex3f + e[1] * 3;
 874                 v2 = vertex3f + e[2] * 3;
 875                 tc0 = texcoord2f + e[0] * 2;
 876                 tc1 = texcoord2f + e[1] * 2;
 877                 tc2 = texcoord2f + e[2] * 2;
 878
 879                 // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 880                 // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 881
 882                 // calculate the edge directions and surface normal
 883                 // 6 multiply, 9 subtract
 884                 VectorSubtract(v1, v0, v10);
 885                 VectorSubtract(v2, v0, v20);
 886                 normal[0] = v20[1] * v10[2] - v20[2] * v10[1];
 887                 normal[1] = v20[2] * v10[0] - v20[0] * v10[2];
 888                 normal[2] = v20[0] * v10[1] - v20[1] * v10[0];
 889
 890                 // calculate the tangents
 891                 // 12 multiply, 10 subtract
 892                 tc10[1] = tc1[1] - tc0[1];
 893                 tc20[1] = tc2[1] - tc0[1];
 894                 sdir[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 895                 sdir[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 896                 sdir[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 897                 tc10[0] = tc1[0] - tc0[0];
 898                 tc20[0] = tc2[0] - tc0[0];
 899                 tdir[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 900                 tdir[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 901                 tdir[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 902
 903                 // if texture is mapped the wrong way (counterclockwise), the tangents
 904                 // have to be flipped, this is detected by calculating a normal from the
 905                 // two tangents, and seeing if it is opposite the surface normal
 906                 // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 907                 CrossProduct(tdir, sdir, tangentcross);
 908                 if (DotProduct(tangentcross, normal) < 0)
 909                 {
 910                         VectorNegate(sdir, sdir);
 911                         VectorNegate(tdir, tdir);
 912                 }
 913
 914                 if (!areaweighting)
 915                 {
 916                         VectorNormalize(sdir);
 917                         VectorNormalize(tdir);
 918                 }
 919                 for (i = 0;i < 3;i++)
 920                 {
 921                         VectorAdd(svector3f + e[i]*3, sdir, svector3f + e[i]*3);
 922                         VectorAdd(tvector3f + e[i]*3, tdir, tvector3f + e[i]*3);
 923                 }
 924         }
 925         // make the tangents completely perpendicular to the surface normal, and
 926         // then normalize them
 927         // 16 assignments, 2 divide, 2 sqrt, 2 negates, 14 adds, 24 multiplies
 928         for (i = 0, svec = svector3f + 3 * firstvertex, tvec = tvector3f + 3 * firstvertex, n = normal3f + 3 * firstvertex;i < numvertices;i++, svec += 3, tvec += 3, n += 3)
 929         {
 930                 f = -DotProduct(svec, n);
 931                 VectorMA(svec, f, n, svec);
 932                 VectorNormalize(svec);
 933                 f = -DotProduct(tvec, n);
 934                 VectorMA(tvec, f, n, tvec);
 935                 VectorNormalize(tvec);
 936         }
 937 }
 938
 939 void Mod_AllocSurfMesh(mempool_t *mempool, int numvertices, int numtriangles, qboolean lightmapoffsets, qboolean vertexcolors)
 940 {
 941         unsigned char *data;
 942         data = (unsigned char *)Mem_Alloc(mempool, numvertices * (3 + 3 + 3 + 3 + 2 + 2 + (vertexcolors ? 4 : 0)) * sizeof(float) + numvertices * (lightmapoffsets ? 1 : 0) * sizeof(int) + numtriangles * sizeof(int[3]) + (numvertices <= 65536 ? numtriangles * sizeof(unsigned short[3]) : 0));
 943         loadmodel->surfmesh.num_vertices = numvertices;
 944         loadmodel->surfmesh.num_triangles = numtriangles;
 945         if (loadmodel->surfmesh.num_vertices)
 946         {
 947                 loadmodel->surfmesh.data_vertex3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 948                 loadmodel->surfmesh.data_svector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 949                 loadmodel->surfmesh.data_tvector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 950                 loadmodel->surfmesh.data_normal3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 951                 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 952                 loadmodel->surfmesh.data_texcoordlightmap2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 953                 if (vertexcolors)
 954                         loadmodel->surfmesh.data_lightmapcolor4f = (float *)data, data += sizeof(float[4]) * loadmodel->surfmesh.num_vertices;
 955                 if (lightmapoffsets)
 956                         loadmodel->surfmesh.data_lightmapoffsets = (int *)data, data += sizeof(int) * loadmodel->surfmesh.num_vertices;
 957         }
 958         if (loadmodel->surfmesh.num_triangles)
 959         {
 960                 loadmodel->surfmesh.data_element3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
 961                 if (loadmodel->surfmesh.num_vertices <= 65536)
 962                         loadmodel->surfmesh.data_element3s = (unsigned short *)data, data += sizeof(unsigned short[3]) * loadmodel->surfmesh.num_triangles;
 963         }
 964 }
 965
 966 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 expandable)
 967 {
 968         shadowmesh_t *newmesh;
 969         unsigned char *data;
 970         int size;
 971         size = sizeof(shadowmesh_t);
 972         size += maxverts * sizeof(float[3]);
 973         if (light)
 974                 size += maxverts * sizeof(float[11]);
 975         size += maxtriangles * sizeof(int[3]);
 976         if (maxverts <= 65536)
 977                 size += maxtriangles * sizeof(unsigned short[3]);
 978         if (expandable)
 979                 size += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *) + maxverts * sizeof(shadowmeshvertexhash_t);
 980         data = (unsigned char *)Mem_Alloc(mempool, size);
 981         newmesh = (shadowmesh_t *)data;data += sizeof(*newmesh);
 982         newmesh->map_diffuse = map_diffuse;
 983         newmesh->map_specular = map_specular;
 984         newmesh->map_normal = map_normal;
 985         newmesh->maxverts = maxverts;
 986         newmesh->maxtriangles = maxtriangles;
 987         newmesh->numverts = 0;
 988         newmesh->numtriangles = 0;
 989         memset(newmesh->sideoffsets, 0, sizeof(newmesh->sideoffsets));
 990         memset(newmesh->sidetotals, 0, sizeof(newmesh->sidetotals));
 991
 992         newmesh->vertex3f = (float *)data;data += maxverts * sizeof(float[3]);
 993         if (light)
 994         {
 995                 newmesh->svector3f = (float *)data;data += maxverts * sizeof(float[3]);
 996                 newmesh->tvector3f = (float *)data;data += maxverts * sizeof(float[3]);
 997                 newmesh->normal3f = (float *)data;data += maxverts * sizeof(float[3]);
 998                 newmesh->texcoord2f = (float *)data;data += maxverts * sizeof(float[2]);
 999         }
1000         newmesh->element3i = (int *)data;data += maxtriangles * sizeof(int[3]);
1001         if (expandable)
1002         {
1003                 newmesh->vertexhashtable = (shadowmeshvertexhash_t **)data;data += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *);
1004                 newmesh->vertexhashentries = (shadowmeshvertexhash_t *)data;data += maxverts * sizeof(shadowmeshvertexhash_t);
1005         }
1006         if (maxverts <= 65536)
1007                 newmesh->element3s = (unsigned short *)data;data += maxtriangles * sizeof(unsigned short[3]);
1008         return newmesh;
1009 }
1010
1011 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh, int light)
1012 {
1013         shadowmesh_t *newmesh;
1014         newmesh = Mod_ShadowMesh_Alloc(mempool, oldmesh->numverts, oldmesh->numtriangles, oldmesh->map_diffuse, oldmesh->map_specular, oldmesh->map_normal, light, false);
1015         newmesh->numverts = oldmesh->numverts;
1016         newmesh->numtriangles = oldmesh->numtriangles;
1017         memcpy(newmesh->sideoffsets, oldmesh->sideoffsets, sizeof(oldmesh->sideoffsets));
1018         memcpy(newmesh->sidetotals, oldmesh->sidetotals, sizeof(oldmesh->sidetotals));
1019
1020         memcpy(newmesh->vertex3f, oldmesh->vertex3f, oldmesh->numverts * sizeof(float[3]));
1021         if (newmesh->svector3f && oldmesh->svector3f)
1022         {
1023                 memcpy(newmesh->svector3f, oldmesh->svector3f, oldmesh->numverts * sizeof(float[3]));
1024                 memcpy(newmesh->tvector3f, oldmesh->tvector3f, oldmesh->numverts * sizeof(float[3]));
1025                 memcpy(newmesh->normal3f, oldmesh->normal3f, oldmesh->numverts * sizeof(float[3]));
1026                 memcpy(newmesh->texcoord2f, oldmesh->texcoord2f, oldmesh->numverts * sizeof(float[2]));
1027         }
1028         memcpy(newmesh->element3i, oldmesh->element3i, oldmesh->numtriangles * sizeof(int[3]));
1029         return newmesh;
1030 }
1031
1032 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *vertex14f)
1033 {
1034         int hashindex, vnum;
1035         shadowmeshvertexhash_t *hash;
1036         // this uses prime numbers intentionally
1037         hashindex = (unsigned int) (vertex14f[0] * 2003 + vertex14f[1] * 4001 + vertex14f[2] * 7919) % SHADOWMESHVERTEXHASH;
1038         for (hash = mesh->vertexhashtable[hashindex];hash;hash = hash->next)
1039         {
1040                 vnum = (hash - mesh->vertexhashentries);
1041                 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]))
1042                  && (mesh->svector3f == NULL || (mesh->svector3f[vnum * 3 + 0] == vertex14f[3] && mesh->svector3f[vnum * 3 + 1] == vertex14f[4] && mesh->svector3f[vnum * 3 + 2] == vertex14f[5]))
1043                  && (mesh->tvector3f == NULL || (mesh->tvector3f[vnum * 3 + 0] == vertex14f[6] && mesh->tvector3f[vnum * 3 + 1] == vertex14f[7] && mesh->tvector3f[vnum * 3 + 2] == vertex14f[8]))
1044                  && (mesh->normal3f == NULL || (mesh->normal3f[vnum * 3 + 0] == vertex14f[9] && mesh->normal3f[vnum * 3 + 1] == vertex14f[10] && mesh->normal3f[vnum * 3 + 2] == vertex14f[11]))
1045                  && (mesh->texcoord2f == NULL || (mesh->texcoord2f[vnum * 2 + 0] == vertex14f[12] && mesh->texcoord2f[vnum * 2 + 1] == vertex14f[13])))
1046                         return hash - mesh->vertexhashentries;
1047         }
1048         vnum = mesh->numverts++;
1049         hash = mesh->vertexhashentries + vnum;
1050         hash->next = mesh->vertexhashtable[hashindex];
1051         mesh->vertexhashtable[hashindex] = hash;
1052         if (mesh->vertex3f) {mesh->vertex3f[vnum * 3 + 0] = vertex14f[0];mesh->vertex3f[vnum * 3 + 1] = vertex14f[1];mesh->vertex3f[vnum * 3 + 2] = vertex14f[2];}
1053         if (mesh->svector3f) {mesh->svector3f[vnum * 3 + 0] = vertex14f[3];mesh->svector3f[vnum * 3 + 1] = vertex14f[4];mesh->svector3f[vnum * 3 + 2] = vertex14f[5];}
1054         if (mesh->tvector3f) {mesh->tvector3f[vnum * 3 + 0] = vertex14f[6];mesh->tvector3f[vnum * 3 + 1] = vertex14f[7];mesh->tvector3f[vnum * 3 + 2] = vertex14f[8];}
1055         if (mesh->normal3f) {mesh->normal3f[vnum * 3 + 0] = vertex14f[9];mesh->normal3f[vnum * 3 + 1] = vertex14f[10];mesh->normal3f[vnum * 3 + 2] = vertex14f[11];}
1056         if (mesh->texcoord2f) {mesh->texcoord2f[vnum * 2 + 0] = vertex14f[12];mesh->texcoord2f[vnum * 2 + 1] = vertex14f[13];}
1057         return vnum;
1058 }
1059
1060 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex14f)
1061 {
1062         if (mesh->numtriangles == 0)
1063         {
1064                 // set the properties on this empty mesh to be more favorable...
1065                 // (note: this case only occurs for the first triangle added to a new mesh chain)
1066                 mesh->map_diffuse = map_diffuse;
1067                 mesh->map_specular = map_specular;
1068                 mesh->map_normal = map_normal;
1069         }
1070         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)
1071         {
1072                 if (mesh->next == NULL)
1073                         mesh->next = Mod_ShadowMesh_Alloc(mempool, max(mesh->maxverts, 300), max(mesh->maxtriangles, 100), map_diffuse, map_specular, map_normal, mesh->svector3f != NULL, true);
1074                 mesh = mesh->next;
1075         }
1076         mesh->element3i[mesh->numtriangles * 3 + 0] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 0);
1077         mesh->element3i[mesh->numtriangles * 3 + 1] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 1);
1078         mesh->element3i[mesh->numtriangles * 3 + 2] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 2);
1079         mesh->numtriangles++;
1080 }
1081
1082 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)
1083 {
1084         int i, j, e;
1085         float vbuf[3*14], *v;
1086         memset(vbuf, 0, sizeof(vbuf));
1087         for (i = 0;i < numtris;i++)
1088         {
1089                 for (j = 0, v = vbuf;j < 3;j++, v += 14)
1090                 {
1091                         e = *element3i++;
1092                         if (vertex3f)
1093                         {
1094                                 v[0] = vertex3f[e * 3 + 0];
1095                                 v[1] = vertex3f[e * 3 + 1];
1096                                 v[2] = vertex3f[e * 3 + 2];
1097                         }
1098                         if (svector3f)
1099                         {
1100                                 v[3] = svector3f[e * 3 + 0];
1101                                 v[4] = svector3f[e * 3 + 1];
1102                                 v[5] = svector3f[e * 3 + 2];
1103                         }
1104                         if (tvector3f)
1105                         {
1106                                 v[6] = tvector3f[e * 3 + 0];
1107                                 v[7] = tvector3f[e * 3 + 1];
1108                                 v[8] = tvector3f[e * 3 + 2];
1109                         }
1110                         if (normal3f)
1111                         {
1112                                 v[9] = normal3f[e * 3 + 0];
1113                                 v[10] = normal3f[e * 3 + 1];
1114                                 v[11] = normal3f[e * 3 + 2];
1115                         }
1116                         if (texcoord2f)
1117                         {
1118                                 v[12] = texcoord2f[e * 2 + 0];
1119                                 v[13] = texcoord2f[e * 2 + 1];
1120                         }
1121                 }
1122                 Mod_ShadowMesh_AddTriangle(mempool, mesh, map_diffuse, map_specular, map_normal, vbuf);
1123         }
1124
1125         // the triangle calculation can take a while, so let's do a keepalive here
1126         CL_KeepaliveMessage(false);
1127 }
1128
1129 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 expandable)
1130 {
1131         // the preparation before shadow mesh initialization can take a while, so let's do a keepalive here
1132         CL_KeepaliveMessage(false);
1133
1134         return Mod_ShadowMesh_Alloc(mempool, maxverts, maxtriangles, map_diffuse, map_specular, map_normal, light, expandable);
1135 }
1136
1137 static void Mod_ShadowMesh_CreateVBOs(shadowmesh_t *mesh, mempool_t *mempool)
1138 {
1139         if (!mesh->numverts)
1140                 return;
1141
1142         // make sure we don't crash inside the driver if something went wrong, as it's annoying to debug
1143         Mod_ValidateElements(mesh->element3i, mesh->element3s, mesh->numtriangles, 0, mesh->numverts, __FILE__, __LINE__);
1144
1145         // build r_vertexmesh_t array
1146         // (compressed interleaved array for D3D)
1147         if (!mesh->vertexmesh && mesh->texcoord2f && vid.useinterleavedarrays)
1148         {
1149                 int vertexindex;
1150                 int numvertices = mesh->numverts;
1151                 r_vertexmesh_t *vertexmesh;
1152                 mesh->vertexmesh = vertexmesh = (r_vertexmesh_t*)Mem_Alloc(mempool, numvertices * sizeof(*mesh->vertexmesh));
1153                 for (vertexindex = 0;vertexindex < numvertices;vertexindex++, vertexmesh++)
1154                 {
1155                         VectorCopy(mesh->vertex3f + 3*vertexindex, vertexmesh->vertex3f);
1156                         VectorScale(mesh->svector3f + 3*vertexindex, 1.0f, vertexmesh->svector3f);
1157                         VectorScale(mesh->tvector3f + 3*vertexindex, 1.0f, vertexmesh->tvector3f);
1158                         VectorScale(mesh->normal3f + 3*vertexindex, 1.0f, vertexmesh->normal3f);
1159                         Vector2Copy(mesh->texcoord2f + 2*vertexindex, vertexmesh->texcoordtexture2f);
1160                 }
1161         }
1162
1163         // upload short indices as a buffer
1164         if (mesh->element3s && !mesh->element3s_indexbuffer)
1165                 mesh->element3s_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3s, mesh->numtriangles * sizeof(short[3]), "shadowmesh", true, false, false, true);
1166
1167         // upload int indices as a buffer
1168         if (mesh->element3i && !mesh->element3i_indexbuffer && !mesh->element3s)
1169                 mesh->element3i_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3i, mesh->numtriangles * sizeof(int[3]), "shadowmesh", true, false, false, false);
1170
1171         // vertex buffer is several arrays and we put them in the same buffer
1172         //
1173         // is this wise?  the texcoordtexture2f array is used with dynamic
1174         // vertex/svector/tvector/normal when rendering animated models, on the
1175         // other hand animated models don't use a lot of vertices anyway...
1176         if (!mesh->vbo_vertexbuffer && !vid.useinterleavedarrays)
1177         {
1178                 int size;
1179                 unsigned char *mem;
1180                 size = 0;
1181                 mesh->vbooffset_vertexmesh         = size;if (mesh->vertexmesh        ) size += mesh->numverts * sizeof(r_vertexmesh_t);
1182                 mesh->vbooffset_vertex3f           = size;if (mesh->vertex3f          ) size += mesh->numverts * sizeof(float[3]);
1183                 mesh->vbooffset_svector3f          = size;if (mesh->svector3f         ) size += mesh->numverts * sizeof(float[3]);
1184                 mesh->vbooffset_tvector3f          = size;if (mesh->tvector3f         ) size += mesh->numverts * sizeof(float[3]);
1185                 mesh->vbooffset_normal3f           = size;if (mesh->normal3f          ) size += mesh->numverts * sizeof(float[3]);
1186                 mesh->vbooffset_texcoord2f         = size;if (mesh->texcoord2f        ) size += mesh->numverts * sizeof(float[2]);
1187                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
1188                 if (mesh->vertexmesh        ) memcpy(mem + mesh->vbooffset_vertexmesh        , mesh->vertexmesh        , mesh->numverts * sizeof(r_vertexmesh_t));
1189                 if (mesh->vertex3f          ) memcpy(mem + mesh->vbooffset_vertex3f          , mesh->vertex3f          , mesh->numverts * sizeof(float[3]));
1190                 if (mesh->svector3f         ) memcpy(mem + mesh->vbooffset_svector3f         , mesh->svector3f         , mesh->numverts * sizeof(float[3]));
1191                 if (mesh->tvector3f         ) memcpy(mem + mesh->vbooffset_tvector3f         , mesh->tvector3f         , mesh->numverts * sizeof(float[3]));
1192                 if (mesh->normal3f          ) memcpy(mem + mesh->vbooffset_normal3f          , mesh->normal3f          , mesh->numverts * sizeof(float[3]));
1193                 if (mesh->texcoord2f        ) memcpy(mem + mesh->vbooffset_texcoord2f        , mesh->texcoord2f        , mesh->numverts * sizeof(float[2]));
1194                 mesh->vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, "shadowmesh", false, false, false, false);
1195                 Mem_Free(mem);
1196         }
1197 }
1198
1199 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh, qboolean light, qboolean createvbo)
1200 {
1201         shadowmesh_t *mesh, *newmesh, *nextmesh;
1202         // reallocate meshs to conserve space
1203         for (mesh = firstmesh, firstmesh = NULL;mesh;mesh = nextmesh)
1204         {
1205                 nextmesh = mesh->next;
1206                 if (mesh->numverts >= 3 && mesh->numtriangles >= 1)
1207                 {
1208                         newmesh = Mod_ShadowMesh_ReAlloc(mempool, mesh, light);
1209                         newmesh->next = firstmesh;
1210                         firstmesh = newmesh;
1211                         if (newmesh->element3s)
1212                         {
1213                                 int i;
1214                                 for (i = 0;i < newmesh->numtriangles*3;i++)
1215                                         newmesh->element3s[i] = newmesh->element3i[i];
1216                         }
1217                         if (createvbo)
1218                                 Mod_ShadowMesh_CreateVBOs(newmesh, mempool);
1219                 }
1220                 Mem_Free(mesh);
1221         }
1222
1223         // this can take a while, so let's do a keepalive here
1224         CL_KeepaliveMessage(false);
1225
1226         return firstmesh;
1227 }
1228
1229 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius)
1230 {
1231         int i;
1232         shadowmesh_t *mesh;
1233         vec3_t nmins, nmaxs, ncenter, temp;
1234         float nradius2, dist2, *v;
1235         VectorClear(nmins);
1236         VectorClear(nmaxs);
1237         // calculate bbox
1238         for (mesh = firstmesh;mesh;mesh = mesh->next)
1239         {
1240                 if (mesh == firstmesh)
1241                 {
1242                         VectorCopy(mesh->vertex3f, nmins);
1243                         VectorCopy(mesh->vertex3f, nmaxs);
1244                 }
1245                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1246                 {
1247                         if (nmins[0] > v[0]) nmins[0] = v[0];if (nmaxs[0] < v[0]) nmaxs[0] = v[0];
1248                         if (nmins[1] > v[1]) nmins[1] = v[1];if (nmaxs[1] < v[1]) nmaxs[1] = v[1];
1249                         if (nmins[2] > v[2]) nmins[2] = v[2];if (nmaxs[2] < v[2]) nmaxs[2] = v[2];
1250                 }
1251         }
1252         // calculate center and radius
1253         ncenter[0] = (nmins[0] + nmaxs[0]) * 0.5f;
1254         ncenter[1] = (nmins[1] + nmaxs[1]) * 0.5f;
1255         ncenter[2] = (nmins[2] + nmaxs[2]) * 0.5f;
1256         nradius2 = 0;
1257         for (mesh = firstmesh;mesh;mesh = mesh->next)
1258         {
1259                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1260                 {
1261                         VectorSubtract(v, ncenter, temp);
1262                         dist2 = DotProduct(temp, temp);
1263                         if (nradius2 < dist2)
1264                                 nradius2 = dist2;
1265                 }
1266         }
1267         // return data
1268         if (mins)
1269                 VectorCopy(nmins, mins);
1270         if (maxs)
1271                 VectorCopy(nmaxs, maxs);
1272         if (center)
1273                 VectorCopy(ncenter, center);
1274         if (radius)
1275                 *radius = sqrt(nradius2);
1276 }
1277
1278 void Mod_ShadowMesh_Free(shadowmesh_t *mesh)
1279 {
1280         shadowmesh_t *nextmesh;
1281         for (;mesh;mesh = nextmesh)
1282         {
1283                 if (mesh->element3i_indexbuffer)
1284                         R_Mesh_DestroyMeshBuffer(mesh->element3i_indexbuffer);
1285                 if (mesh->element3s_indexbuffer)
1286                         R_Mesh_DestroyMeshBuffer(mesh->element3s_indexbuffer);
1287                 if (mesh->vbo_vertexbuffer)
1288                         R_Mesh_DestroyMeshBuffer(mesh->vbo_vertexbuffer);
1289                 nextmesh = mesh->next;
1290                 Mem_Free(mesh);
1291         }
1292 }
1293
1294 void Mod_CreateCollisionMesh(dp_model_t *mod)
1295 {
1296         int k, numcollisionmeshtriangles;
1297         qboolean usesinglecollisionmesh = false;
1298         const msurface_t *surface = NULL;
1299
1300         mempool_t *mempool = mod->mempool;
1301         if (!mempool && mod->brush.parentmodel)
1302                 mempool = mod->brush.parentmodel->mempool;
1303         // make a single combined collision mesh for physics engine use
1304         // TODO rewrite this to use the collision brushes as source, to fix issues with e.g. common/caulk which creates no drawsurface
1305         numcollisionmeshtriangles = 0;
1306         for (k = 0;k < mod->nummodelsurfaces;k++)
1307         {
1308                 surface = mod->data_surfaces + mod->firstmodelsurface + k;
1309                 if (!strcmp(surface->texture->name, "collision") || !strcmp(surface->texture->name, "collisionconvex")) // found collision mesh
1310                 {
1311                         usesinglecollisionmesh = true;
1312                         numcollisionmeshtriangles = surface->num_triangles;
1313                         break;
1314                 }
1315                 if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1316                         continue;
1317                 numcollisionmeshtriangles += surface->num_triangles;
1318         }
1319         mod->brush.collisionmesh = Mod_ShadowMesh_Begin(mempool, numcollisionmeshtriangles * 3, numcollisionmeshtriangles, NULL, NULL, NULL, false, true);
1320         if (usesinglecollisionmesh)
1321                 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));
1322         else
1323         {
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                         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));
1330                 }
1331         }
1332         mod->brush.collisionmesh = Mod_ShadowMesh_Finish(mempool, mod->brush.collisionmesh, false, false);
1333 }
1334
1335 #if 0
1336 static 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)
1337 {
1338         float v[3], tc[3];
1339         v[0] = ix;
1340         v[1] = iy;
1341         if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
1342                 v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
1343         else
1344                 v[2] = 0;
1345         Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
1346         Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
1347         texcoord2f[0] = tc[0];
1348         texcoord2f[1] = tc[1];
1349 }
1350
1351 static 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)
1352 {
1353         float vup[3], vdown[3], vleft[3], vright[3];
1354         float tcup[3], tcdown[3], tcleft[3], tcright[3];
1355         float sv[3], tv[3], nl[3];
1356         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
1357         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
1358         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
1359         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
1360         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
1361         Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
1362         Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
1363         VectorAdd(svector3f, sv, svector3f);
1364         VectorAdd(tvector3f, tv, tvector3f);
1365         VectorAdd(normal3f, nl, normal3f);
1366         Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
1367         VectorAdd(svector3f, sv, svector3f);
1368         VectorAdd(tvector3f, tv, tvector3f);
1369         VectorAdd(normal3f, nl, normal3f);
1370         Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
1371         VectorAdd(svector3f, sv, svector3f);
1372         VectorAdd(tvector3f, tv, tvector3f);
1373         VectorAdd(normal3f, nl, normal3f);
1374 }
1375
1376 static void Mod_ConstructTerrainPatchFromBGRA(const unsigned char *imagepixels, int imagewidth, int imageheight, int x1, int y1, int width, int height, int *element3i, float *vertex3f, float *svector3f, float *tvector3f, float *normal3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
1377 {
1378         int x, y, ix, iy, *e;
1379         e = element3i;
1380         for (y = 0;y < height;y++)
1381         {
1382                 for (x = 0;x < width;x++)
1383                 {
1384                         e[0] = (y + 1) * (width + 1) + (x + 0);
1385                         e[1] = (y + 0) * (width + 1) + (x + 0);
1386                         e[2] = (y + 1) * (width + 1) + (x + 1);
1387                         e[3] = (y + 0) * (width + 1) + (x + 0);
1388                         e[4] = (y + 0) * (width + 1) + (x + 1);
1389                         e[5] = (y + 1) * (width + 1) + (x + 1);
1390                         e += 6;
1391                 }
1392         }
1393         for (y = 0, iy = y1;y < height + 1;y++, iy++)
1394                 for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
1395                         Mod_GetTerrainVertexFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
1396 }
1397 #endif
1398
1399 #if 0
1400 void Mod_Terrain_SurfaceRecurseChunk(dp_model_t *model, int stepsize, int x, int y)
1401 {
1402         float mins[3];
1403         float maxs[3];
1404         float chunkwidth = min(stepsize, model->terrain.width - 1 - x);
1405         float chunkheight = min(stepsize, model->terrain.height - 1 - y);
1406         float viewvector[3];
1407         unsigned int firstvertex;
1408         unsigned int *e;
1409         float *v;
1410         if (chunkwidth < 2 || chunkheight < 2)
1411                 return;
1412         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]);
1413         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]);
1414         viewvector[0] = bound(mins[0], localvieworigin, maxs[0]) - model->terrain.vieworigin[0];
1415         viewvector[1] = bound(mins[1], localvieworigin, maxs[1]) - model->terrain.vieworigin[1];
1416         viewvector[2] = bound(mins[2], localvieworigin, maxs[2]) - model->terrain.vieworigin[2];
1417         if (stepsize > 1 && VectorLength(viewvector) < stepsize*model->terrain.scale[0]*r_terrain_lodscale.value)
1418         {
1419                 // too close for this stepsize, emit as 4 chunks instead
1420                 stepsize /= 2;
1421                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y);
1422                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y);
1423                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y+stepsize);
1424                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y+stepsize);
1425                 return;
1426         }
1427         // emit the geometry at stepsize into our vertex buffer / index buffer
1428         // we add two columns and two rows for skirt
1429         outwidth = chunkwidth+2;
1430         outheight = chunkheight+2;
1431         outwidth2 = outwidth-1;
1432         outheight2 = outheight-1;
1433         outwidth3 = outwidth+1;
1434         outheight3 = outheight+1;
1435         firstvertex = numvertices;
1436         e = model->terrain.element3i + numtriangles;
1437         numtriangles += chunkwidth*chunkheight*2+chunkwidth*2*2+chunkheight*2*2;
1438         v = model->terrain.vertex3f + numvertices;
1439         numvertices += (chunkwidth+1)*(chunkheight+1)+(chunkwidth+1)*2+(chunkheight+1)*2;
1440         // emit the triangles (note: the skirt is treated as two extra rows and two extra columns)
1441         for (ty = 0;ty < outheight;ty++)
1442         {
1443                 for (tx = 0;tx < outwidth;tx++)
1444                 {
1445                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1446                         *e++ = firstvertex + (ty  )*outwidth3+(tx+1);
1447                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1448                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1449                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1450                         *e++ = firstvertex + (ty+1)*outwidth3+(tx  );
1451                 }
1452         }
1453         // TODO: emit surface vertices (x+tx*stepsize, y+ty*stepsize)
1454         for (ty = 0;ty <= outheight;ty++)
1455         {
1456                 skirtrow = ty == 0 || ty == outheight;
1457                 ry = y+bound(1, ty, outheight)*stepsize;
1458                 for (tx = 0;tx <= outwidth;tx++)
1459                 {
1460                         skirt = skirtrow || tx == 0 || tx == outwidth;
1461                         rx = x+bound(1, tx, outwidth)*stepsize;
1462                         v[0] = rx*scale[0];
1463                         v[1] = ry*scale[1];
1464                         v[2] = heightmap[ry*terrainwidth+rx]*scale[2];
1465                         v += 3;
1466                 }
1467         }
1468         // TODO: emit skirt vertices
1469 }
1470
1471 void Mod_Terrain_UpdateSurfacesForViewOrigin(dp_model_t *model)
1472 {
1473         for (y = 0;y < model->terrain.size[1];y += model->terrain.
1474         Mod_Terrain_SurfaceRecurseChunk(model, model->terrain.maxstepsize, x, y);
1475         Mod_Terrain_BuildChunk(model,
1476 }
1477 #endif
1478
1479 static int Mod_LoadQ3Shaders_EnumerateWaveFunc(const char *s)
1480 {
1481         int offset = 0;
1482         if (!strncasecmp(s, "user", 4)) // parse stuff like "user1sin", always user<n>func
1483         {
1484                 offset = bound(0, s[4] - '0', 9);
1485                 offset = (offset + 1) << Q3WAVEFUNC_USER_SHIFT;
1486                 s += 4;
1487                 if(*s)
1488                         ++s;
1489         }
1490         if (!strcasecmp(s, "sin"))             return offset | Q3WAVEFUNC_SIN;
1491         if (!strcasecmp(s, "square"))          return offset | Q3WAVEFUNC_SQUARE;
1492         if (!strcasecmp(s, "triangle"))        return offset | Q3WAVEFUNC_TRIANGLE;
1493         if (!strcasecmp(s, "sawtooth"))        return offset | Q3WAVEFUNC_SAWTOOTH;
1494         if (!strcasecmp(s, "inversesawtooth")) return offset | Q3WAVEFUNC_INVERSESAWTOOTH;
1495         if (!strcasecmp(s, "noise"))           return offset | Q3WAVEFUNC_NOISE;
1496         if (!strcasecmp(s, "none"))            return offset | Q3WAVEFUNC_NONE;
1497         Con_DPrintf("Mod_LoadQ3Shaders: unknown wavefunc %s\n", s);
1498         return offset | Q3WAVEFUNC_NONE;
1499 }
1500
1501 void Mod_FreeQ3Shaders(void)
1502 {
1503         Mem_FreePool(&q3shaders_mem);
1504 }
1505
1506 static void Q3Shader_AddToHash (q3shaderinfo_t* shader)
1507 {
1508         unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)shader->name, strlen (shader->name));
1509         q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1510         q3shader_hash_entry_t* lastEntry = NULL;
1511         do
1512         {
1513                 if (strcasecmp (entry->shader.name, shader->name) == 0)
1514                 {
1515                         // redeclaration
1516                         if(shader->dpshaderkill)
1517                         {
1518                                 // killed shader is a redeclarion? we can safely ignore it
1519                                 return;
1520                         }
1521                         else if(entry->shader.dpshaderkill)
1522                         {
1523                                 // replace the old shader!
1524                                 // this will skip the entry allocating part
1525                                 // below and just replace the shader
1526                                 break;
1527                         }
1528                         else
1529                         {
1530                                 unsigned char *start, *end, *start2;
1531                                 start = (unsigned char *) (&shader->Q3SHADERINFO_COMPARE_START);
1532                                 end = ((unsigned char *) (&shader->Q3SHADERINFO_COMPARE_END)) + sizeof(shader->Q3SHADERINFO_COMPARE_END);
1533                                 start2 = (unsigned char *) (&entry->shader.Q3SHADERINFO_COMPARE_START);
1534                                 if(memcmp(start, start2, end - start))
1535                                         Con_DPrintf("Shader '%s' already defined, ignoring mismatching redeclaration\n", shader->name);
1536                                 else
1537                                         Con_DPrintf("Shader '%s' already defined\n", shader->name);
1538                                 return;
1539                         }
1540                 }
1541                 lastEntry = entry;
1542                 entry = entry->chain;
1543         }
1544         while (entry != NULL);
1545         if (entry == NULL)
1546         {
1547                 if (lastEntry->shader.name[0] != 0)
1548                 {
1549                         /* Add to chain */
1550                         q3shader_hash_entry_t* newEntry = (q3shader_hash_entry_t*)
1551                           Mem_ExpandableArray_AllocRecord (&q3shader_data->hash_entries);
1552
1553                         while (lastEntry->chain != NULL) lastEntry = lastEntry->chain;
1554                         lastEntry->chain = newEntry;
1555                         newEntry->chain = NULL;
1556                         lastEntry = newEntry;
1557                 }
1558                 /* else: head of chain, in hash entry array */
1559                 entry = lastEntry;
1560         }
1561         memcpy (&entry->shader, shader, sizeof (q3shaderinfo_t));
1562 }
1563
1564 extern cvar_t mod_noshader_default_offsetmapping;
1565 extern cvar_t mod_q3shader_default_offsetmapping;
1566 extern cvar_t mod_q3shader_default_offsetmapping_scale;
1567 extern cvar_t mod_q3shader_default_offsetmapping_bias;
1568 extern cvar_t mod_q3shader_default_polygonoffset;
1569 extern cvar_t mod_q3shader_default_polygonfactor;
1570 extern cvar_t mod_q3shader_force_addalpha;
1571 extern cvar_t mod_q3shader_force_terrain_alphaflag;
1572 void Mod_LoadQ3Shaders(void)
1573 {
1574         int j;
1575         int fileindex;
1576         fssearch_t *search;
1577         char *f;
1578         const char *text;
1579         q3shaderinfo_t shader;
1580         q3shaderinfo_layer_t *layer;
1581         int numparameters;
1582         char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
1583         char *custsurfaceparmnames[256]; // VorteX: q3map2 has 64 but well, someone will need more
1584         unsigned long custsurfaceflags[256];
1585         int numcustsurfaceflags;
1586         qboolean dpshaderkill;
1587
1588         Mod_FreeQ3Shaders();
1589
1590         q3shaders_mem = Mem_AllocPool("q3shaders", 0, NULL);
1591         q3shader_data = (q3shader_data_t*)Mem_Alloc (q3shaders_mem,
1592                 sizeof (q3shader_data_t));
1593         Mem_ExpandableArray_NewArray (&q3shader_data->hash_entries,
1594                 q3shaders_mem, sizeof (q3shader_hash_entry_t), 256);
1595         Mem_ExpandableArray_NewArray (&q3shader_data->char_ptrs,
1596                 q3shaders_mem, sizeof (char**), 256);
1597
1598         // parse custinfoparms.txt
1599         numcustsurfaceflags = 0;
1600         if ((text = f = (char *)FS_LoadFile("scripts/custinfoparms.txt", tempmempool, false, NULL)) != NULL)
1601         {
1602                 if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1603                         Con_DPrintf("scripts/custinfoparms.txt: contentflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1604                 else
1605                 {
1606                         while (COM_ParseToken_QuakeC(&text, false))
1607                                 if (!strcasecmp(com_token, "}"))
1608                                         break;
1609                         // custom surfaceflags section
1610                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1611                                 Con_DPrintf("scripts/custinfoparms.txt: surfaceflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1612                         else
1613                         {
1614                                 while(COM_ParseToken_QuakeC(&text, false))
1615                                 {
1616                                         if (!strcasecmp(com_token, "}"))
1617                                                 break;
1618                                         // register surfaceflag
1619                                         if (numcustsurfaceflags >= 256)
1620                                         {
1621                                                 Con_Printf("scripts/custinfoparms.txt: surfaceflags section parsing error - max 256 surfaceflags exceeded\n");
1622                                                 break;
1623                                         }
1624                                         // name
1625                                         j = (int)strlen(com_token)+1;
1626                                         custsurfaceparmnames[numcustsurfaceflags] = (char *)Mem_Alloc(tempmempool, j);
1627                                         strlcpy(custsurfaceparmnames[numcustsurfaceflags], com_token, j+1);
1628                                         // value
1629                                         if (COM_ParseToken_QuakeC(&text, false))
1630                                                 custsurfaceflags[numcustsurfaceflags] = strtol(com_token, NULL, 0);
1631                                         else
1632                                                 custsurfaceflags[numcustsurfaceflags] = 0;
1633                                         numcustsurfaceflags++;
1634                                 }
1635                         }
1636                 }
1637                 Mem_Free(f);
1638         }
1639
1640         // parse shaders
1641         search = FS_Search("scripts/*.shader", true, false);
1642         if (!search)
1643                 return;
1644         for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
1645         {
1646                 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
1647                 if (!f)
1648                         continue;
1649                 while (COM_ParseToken_QuakeC(&text, false))
1650                 {
1651                         memset (&shader, 0, sizeof(shader));
1652                         shader.name[0] = 0;
1653                         shader.surfaceparms = 0;
1654                         shader.surfaceflags = 0;
1655                         shader.textureflags = 0;
1656                         shader.numlayers = 0;
1657                         shader.lighting = false;
1658                         shader.vertexalpha = false;
1659                         shader.textureblendalpha = false;
1660                         shader.skyboxname[0] = 0;
1661                         shader.deforms[0].deform = Q3DEFORM_NONE;
1662                         shader.dpnortlight = false;
1663                         shader.dpshadow = false;
1664                         shader.dpnoshadow = false;
1665                         shader.dpmeshcollisions = false;
1666                         shader.dpshaderkill = false;
1667                         shader.dpreflectcube[0] = 0;
1668                         shader.reflectmin = 0;
1669                         shader.reflectmax = 1;
1670                         shader.refractfactor = 1;
1671                         Vector4Set(shader.refractcolor4f, 1, 1, 1, 1);
1672                         shader.reflectfactor = 1;
1673                         Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
1674                         shader.r_water_wateralpha = 1;
1675                         shader.r_water_waterscroll[0] = 0;
1676                         shader.r_water_waterscroll[1] = 0;
1677                         shader.offsetmapping = (mod_q3shader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
1678                         shader.offsetscale = mod_q3shader_default_offsetmapping_scale.value;
1679                         shader.offsetbias = mod_q3shader_default_offsetmapping_bias.value;
1680                         shader.biaspolygonoffset = mod_q3shader_default_polygonoffset.value;
1681                         shader.biaspolygonfactor = mod_q3shader_default_polygonfactor.value;
1682                         shader.transparentsort = TRANSPARENTSORT_DISTANCE;
1683                         shader.specularscalemod = 1;
1684                         shader.specularpowermod = 1;
1685                         shader.rtlightambient = 0;
1686                         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
1687                         // JUST GREP FOR "specularscalemod = 1".
1688
1689                         strlcpy(shader.name, com_token, sizeof(shader.name));
1690                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1691                         {
1692                                 Con_DPrintf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
1693                                 break;
1694                         }
1695                         while (COM_ParseToken_QuakeC(&text, false))
1696                         {
1697                                 if (!strcasecmp(com_token, "}"))
1698                                         break;
1699                                 if (!strcasecmp(com_token, "{"))
1700                                 {
1701                                         static q3shaderinfo_layer_t dummy;
1702                                         if (shader.numlayers < Q3SHADER_MAXLAYERS)
1703                                         {
1704                                                 layer = shader.layers + shader.numlayers++;
1705                                         }
1706                                         else
1707                                         {
1708                                                 // parse and process it anyway, just don't store it (so a map $lightmap or such stuff still is found)
1709                                                 memset(&dummy, 0, sizeof(dummy));
1710                                                 layer = &dummy;
1711                                         }
1712                                         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1713                                         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1714                                         layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1715                                         layer->blendfunc[0] = GL_ONE;
1716                                         layer->blendfunc[1] = GL_ZERO;
1717                                         while (COM_ParseToken_QuakeC(&text, false))
1718                                         {
1719                                                 if (!strcasecmp(com_token, "}"))
1720                                                         break;
1721                                                 if (!strcasecmp(com_token, "\n"))
1722                                                         continue;
1723                                                 numparameters = 0;
1724                                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1725                                                 {
1726                                                         if (j < TEXTURE_MAXFRAMES + 4)
1727                                                         {
1728                                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1729                                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1730                                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1731                                                                 else
1732                                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1733                                                                 numparameters = j + 1;
1734                                                         }
1735                                                         if (!COM_ParseToken_QuakeC(&text, true))
1736                                                                 break;
1737                                                 }
1738                                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1739                                                 //      parameter[j][0] = 0;
1740                                                 if (developer_insane.integer)
1741                                                 {
1742                                                         Con_DPrintf("%s %i: ", shader.name, shader.numlayers - 1);
1743                                                         for (j = 0;j < numparameters;j++)
1744                                                                 Con_DPrintf(" %s", parameter[j]);
1745                                                         Con_DPrint("\n");
1746                                                 }
1747                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
1748                                                 {
1749                                                         if (numparameters == 2)
1750                                                         {
1751                                                                 if (!strcasecmp(parameter[1], "add"))
1752                                                                 {
1753                                                                         layer->blendfunc[0] = GL_ONE;
1754                                                                         layer->blendfunc[1] = GL_ONE;
1755                                                                 }
1756                                                                 else if (!strcasecmp(parameter[1], "addalpha"))
1757                                                                 {
1758                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1759                                                                         layer->blendfunc[1] = GL_ONE;
1760                                                                 }
1761                                                                 else if (!strcasecmp(parameter[1], "filter"))
1762                                                                 {
1763                                                                         layer->blendfunc[0] = GL_DST_COLOR;
1764                                                                         layer->blendfunc[1] = GL_ZERO;
1765                                                                 }
1766                                                                 else if (!strcasecmp(parameter[1], "blend"))
1767                                                                 {
1768                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1769                                                                         layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
1770                                                                 }
1771                                                         }
1772                                                         else if (numparameters == 3)
1773                                                         {
1774                                                                 int k;
1775                                                                 for (k = 0;k < 2;k++)
1776                                                                 {
1777                                                                         if (!strcasecmp(parameter[k+1], "GL_ONE"))
1778                                                                                 layer->blendfunc[k] = GL_ONE;
1779                                                                         else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
1780                                                                                 layer->blendfunc[k] = GL_ZERO;
1781                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
1782                                                                                 layer->blendfunc[k] = GL_SRC_COLOR;
1783                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
1784                                                                                 layer->blendfunc[k] = GL_SRC_ALPHA;
1785                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
1786                                                                                 layer->blendfunc[k] = GL_DST_COLOR;
1787                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
1788                                                                                 layer->blendfunc[k] = GL_DST_ALPHA;
1789                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
1790                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
1791                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
1792                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
1793                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
1794                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
1795                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
1796                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1797                                                                         else
1798                                                                                 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
1799                                                                 }
1800                                                         }
1801                                                 }
1802                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
1803                                                         layer->alphatest = true;
1804                                                 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
1805                                                 {
1806                                                         if (!strcasecmp(parameter[0], "clampmap"))
1807                                                                 layer->clampmap = true;
1808                                                         layer->numframes = 1;
1809                                                         layer->framerate = 1;
1810                                                         layer->texturename = (char**)Mem_ExpandableArray_AllocRecord (
1811                                                                 &q3shader_data->char_ptrs);
1812                                                         layer->texturename[0] = Mem_strdup (q3shaders_mem, parameter[1]);
1813                                                         if (!strcasecmp(parameter[1], "$lightmap"))
1814                                                                 shader.lighting = true;
1815                                                 }
1816                                                 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
1817                                                 {
1818                                                         int i;
1819                                                         layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
1820                                                         layer->framerate = atof(parameter[1]);
1821                                                         layer->texturename = (char **) Mem_Alloc (q3shaders_mem, sizeof (char*) * layer->numframes);
1822                                                         for (i = 0;i < layer->numframes;i++)
1823                                                                 layer->texturename[i] = Mem_strdup (q3shaders_mem, parameter[i + 2]);
1824                                                 }
1825                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen"))
1826                                                 {
1827                                                         int i;
1828                                                         for (i = 0;i < numparameters - 2 && i < Q3RGBGEN_MAXPARMS;i++)
1829                                                                 layer->rgbgen.parms[i] = atof(parameter[i+2]);
1830                                                              if (!strcasecmp(parameter[1], "identity"))         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1831                                                         else if (!strcasecmp(parameter[1], "const"))            layer->rgbgen.rgbgen = Q3RGBGEN_CONST;
1832                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->rgbgen.rgbgen = Q3RGBGEN_ENTITY;
1833                                                         else if (!strcasecmp(parameter[1], "exactvertex"))      layer->rgbgen.rgbgen = Q3RGBGEN_EXACTVERTEX;
1834                                                         else if (!strcasecmp(parameter[1], "identitylighting")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITYLIGHTING;
1835                                                         else if (!strcasecmp(parameter[1], "lightingdiffuse"))  layer->rgbgen.rgbgen = Q3RGBGEN_LIGHTINGDIFFUSE;
1836                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSENTITY;
1837                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSVERTEX;
1838                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->rgbgen.rgbgen = Q3RGBGEN_VERTEX;
1839                                                         else if (!strcasecmp(parameter[1], "wave"))
1840                                                         {
1841                                                                 layer->rgbgen.rgbgen = Q3RGBGEN_WAVE;
1842                                                                 layer->rgbgen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1843                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1844                                                                         layer->rgbgen.waveparms[i] = atof(parameter[i+3]);
1845                                                         }
1846                                                         else Con_DPrintf("%s parsing warning: unknown rgbgen %s\n", search->filenames[fileindex], parameter[1]);
1847                                                 }
1848                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen"))
1849                                                 {
1850                                                         int i;
1851                                                         for (i = 0;i < numparameters - 2 && i < Q3ALPHAGEN_MAXPARMS;i++)
1852                                                                 layer->alphagen.parms[i] = atof(parameter[i+2]);
1853                                                              if (!strcasecmp(parameter[1], "identity"))         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1854                                                         else if (!strcasecmp(parameter[1], "const"))            layer->alphagen.alphagen = Q3ALPHAGEN_CONST;
1855                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->alphagen.alphagen = Q3ALPHAGEN_ENTITY;
1856                                                         else if (!strcasecmp(parameter[1], "lightingspecular")) layer->alphagen.alphagen = Q3ALPHAGEN_LIGHTINGSPECULAR;
1857                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSENTITY;
1858                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSVERTEX;
1859                                                         else if (!strcasecmp(parameter[1], "portal"))           layer->alphagen.alphagen = Q3ALPHAGEN_PORTAL;
1860                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->alphagen.alphagen = Q3ALPHAGEN_VERTEX;
1861                                                         else if (!strcasecmp(parameter[1], "wave"))
1862                                                         {
1863                                                                 layer->alphagen.alphagen = Q3ALPHAGEN_WAVE;
1864                                                                 layer->alphagen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1865                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1866                                                                         layer->alphagen.waveparms[i] = atof(parameter[i+3]);
1867                                                         }
1868                                                         else Con_DPrintf("%s parsing warning: unknown alphagen %s\n", search->filenames[fileindex], parameter[1]);
1869                                                 }
1870                                                 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "texgen") || !strcasecmp(parameter[0], "tcgen")))
1871                                                 {
1872                                                         int i;
1873                                                         // observed values: tcgen environment
1874                                                         // no other values have been observed in real shaders
1875                                                         for (i = 0;i < numparameters - 2 && i < Q3TCGEN_MAXPARMS;i++)
1876                                                                 layer->tcgen.parms[i] = atof(parameter[i+2]);
1877                                                              if (!strcasecmp(parameter[1], "base"))        layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1878                                                         else if (!strcasecmp(parameter[1], "texture"))     layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1879                                                         else if (!strcasecmp(parameter[1], "environment")) layer->tcgen.tcgen = Q3TCGEN_ENVIRONMENT;
1880                                                         else if (!strcasecmp(parameter[1], "lightmap"))    layer->tcgen.tcgen = Q3TCGEN_LIGHTMAP;
1881                                                         else if (!strcasecmp(parameter[1], "vector"))      layer->tcgen.tcgen = Q3TCGEN_VECTOR;
1882                                                         else Con_DPrintf("%s parsing warning: unknown tcgen mode %s\n", search->filenames[fileindex], parameter[1]);
1883                                                 }
1884                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "tcmod"))
1885                                                 {
1886                                                         int i, tcmodindex;
1887                                                         // observed values:
1888                                                         // tcmod rotate #
1889                                                         // tcmod scale # #
1890                                                         // tcmod scroll # #
1891                                                         // tcmod stretch sin # # # #
1892                                                         // tcmod stretch triangle # # # #
1893                                                         // tcmod transform # # # # # #
1894                                                         // tcmod turb # # # #
1895                                                         // tcmod turb sin # # # #  (this is bogus)
1896                                                         // no other values have been observed in real shaders
1897                                                         for (tcmodindex = 0;tcmodindex < Q3MAXTCMODS;tcmodindex++)
1898                                                                 if (!layer->tcmods[tcmodindex].tcmod)
1899                                                                         break;
1900                                                         if (tcmodindex < Q3MAXTCMODS)
1901                                                         {
1902                                                                 for (i = 0;i < numparameters - 2 && i < Q3TCMOD_MAXPARMS;i++)
1903                                                                         layer->tcmods[tcmodindex].parms[i] = atof(parameter[i+2]);
1904                                                                          if (!strcasecmp(parameter[1], "entitytranslate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ENTITYTRANSLATE;
1905                                                                 else if (!strcasecmp(parameter[1], "rotate"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ROTATE;
1906                                                                 else if (!strcasecmp(parameter[1], "scale"))           layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCALE;
1907                                                                 else if (!strcasecmp(parameter[1], "scroll"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCROLL;
1908                                                                 else if (!strcasecmp(parameter[1], "page"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_PAGE;
1909                                                                 else if (!strcasecmp(parameter[1], "stretch"))
1910                                                                 {
1911                                                                         layer->tcmods[tcmodindex].tcmod = Q3TCMOD_STRETCH;
1912                                                                         layer->tcmods[tcmodindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1913                                                                         for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1914                                                                                 layer->tcmods[tcmodindex].waveparms[i] = atof(parameter[i+3]);
1915                                                                 }
1916                                                                 else if (!strcasecmp(parameter[1], "transform"))       layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TRANSFORM;
1917                                                                 else if (!strcasecmp(parameter[1], "turb"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TURBULENT;
1918                                                                 else Con_DPrintf("%s parsing warning: unknown tcmod mode %s\n", search->filenames[fileindex], parameter[1]);
1919                                                         }
1920                                                         else
1921                                                                 Con_DPrintf("%s parsing warning: too many tcmods on one layer\n", search->filenames[fileindex]);
1922                                                 }
1923                                                 // break out a level if it was a closing brace (not using the character here to not confuse vim)
1924                                                 if (!strcasecmp(com_token, "}"))
1925                                                         break;
1926                                         }
1927                                         if (layer->rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE || layer->rgbgen.rgbgen == Q3RGBGEN_VERTEX)
1928                                                 shader.lighting = true;
1929                                         if (layer->alphagen.alphagen == Q3ALPHAGEN_VERTEX)
1930                                         {
1931                                                 if (layer == shader.layers + 0)
1932                                                 {
1933                                                         // vertex controlled transparency
1934                                                         shader.vertexalpha = true;
1935                                                 }
1936                                                 else
1937                                                 {
1938                                                         // multilayer terrain shader or similar
1939                                                         shader.textureblendalpha = true;
1940                                                         if (mod_q3shader_force_terrain_alphaflag.integer)
1941                                                                 shader.layers[0].dptexflags |= TEXF_ALPHA;
1942                                                 }
1943                                         }
1944
1945                                         if(mod_q3shader_force_addalpha.integer)
1946                                         {
1947                                                 // for a long while, DP treated GL_ONE GL_ONE as GL_SRC_ALPHA GL_ONE
1948                                                 // this cvar brings back this behaviour
1949                                                 if(layer->blendfunc[0] == GL_ONE && layer->blendfunc[1] == GL_ONE)
1950                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1951                                         }
1952
1953                                         layer->dptexflags = 0;
1954                                         if (layer->alphatest)
1955                                                 layer->dptexflags |= TEXF_ALPHA;
1956                                         switch(layer->blendfunc[0])
1957                                         {
1958                                                 case GL_SRC_ALPHA:
1959                                                 case GL_ONE_MINUS_SRC_ALPHA:
1960                                                         layer->dptexflags |= TEXF_ALPHA;
1961                                                         break;
1962                                         }
1963                                         switch(layer->blendfunc[1])
1964                                         {
1965                                                 case GL_SRC_ALPHA:
1966                                                 case GL_ONE_MINUS_SRC_ALPHA:
1967                                                         layer->dptexflags |= TEXF_ALPHA;
1968                                                         break;
1969                                         }
1970                                         if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
1971                                                 layer->dptexflags |= TEXF_MIPMAP;
1972                                         if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
1973                                                 layer->dptexflags |= TEXF_PICMIP | TEXF_COMPRESS;
1974                                         if (layer->clampmap)
1975                                                 layer->dptexflags |= TEXF_CLAMP;
1976                                         continue;
1977                                 }
1978                                 numparameters = 0;
1979                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1980                                 {
1981                                         if (j < TEXTURE_MAXFRAMES + 4)
1982                                         {
1983                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1984                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1985                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1986                                                 else
1987                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1988                                                 numparameters = j + 1;
1989                                         }
1990                                         if (!COM_ParseToken_QuakeC(&text, true))
1991                                                 break;
1992                                 }
1993                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1994                                 //      parameter[j][0] = 0;
1995                                 if (fileindex == 0 && !strcasecmp(com_token, "}"))
1996                                         break;
1997                                 if (developer_insane.integer)
1998                                 {
1999                                         Con_DPrintf("%s: ", shader.name);
2000                                         for (j = 0;j < numparameters;j++)
2001                                                 Con_DPrintf(" %s", parameter[j]);
2002                                         Con_DPrint("\n");
2003                                 }
2004                                 if (numparameters < 1)
2005                                         continue;
2006                                 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
2007                                 {
2008                                         if (!strcasecmp(parameter[1], "alphashadow"))
2009                                                 shader.surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
2010                                         else if (!strcasecmp(parameter[1], "areaportal"))
2011                                                 shader.surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
2012                                         else if (!strcasecmp(parameter[1], "botclip"))
2013                                                 shader.surfaceparms |= Q3SURFACEPARM_BOTCLIP;
2014                                         else if (!strcasecmp(parameter[1], "clusterportal"))
2015                                                 shader.surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
2016                                         else if (!strcasecmp(parameter[1], "detail"))
2017                                                 shader.surfaceparms |= Q3SURFACEPARM_DETAIL;
2018                                         else if (!strcasecmp(parameter[1], "donotenter"))
2019                                                 shader.surfaceparms |= Q3SURFACEPARM_DONOTENTER;
2020                                         else if (!strcasecmp(parameter[1], "dust"))
2021                                                 shader.surfaceparms |= Q3SURFACEPARM_DUST;
2022                                         else if (!strcasecmp(parameter[1], "hint"))
2023                                                 shader.surfaceparms |= Q3SURFACEPARM_HINT;
2024                                         else if (!strcasecmp(parameter[1], "fog"))
2025                                                 shader.surfaceparms |= Q3SURFACEPARM_FOG;
2026                                         else if (!strcasecmp(parameter[1], "lava"))
2027                                                 shader.surfaceparms |= Q3SURFACEPARM_LAVA;
2028                                         else if (!strcasecmp(parameter[1], "lightfilter"))
2029                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
2030                                         else if (!strcasecmp(parameter[1], "lightgrid"))
2031                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
2032                                         else if (!strcasecmp(parameter[1], "metalsteps"))
2033                                                 shader.surfaceparms |= Q3SURFACEPARM_METALSTEPS;
2034                                         else if (!strcasecmp(parameter[1], "nodamage"))
2035                                                 shader.surfaceparms |= Q3SURFACEPARM_NODAMAGE;
2036                                         else if (!strcasecmp(parameter[1], "nodlight"))
2037                                                 shader.surfaceparms |= Q3SURFACEPARM_NODLIGHT;
2038                                         else if (!strcasecmp(parameter[1], "nodraw"))
2039                                                 shader.surfaceparms |= Q3SURFACEPARM_NODRAW;
2040                                         else if (!strcasecmp(parameter[1], "nodrop"))
2041                                                 shader.surfaceparms |= Q3SURFACEPARM_NODROP;
2042                                         else if (!strcasecmp(parameter[1], "noimpact"))
2043                                                 shader.surfaceparms |= Q3SURFACEPARM_NOIMPACT;
2044                                         else if (!strcasecmp(parameter[1], "nolightmap"))
2045                                                 shader.surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
2046                                         else if (!strcasecmp(parameter[1], "nomarks"))
2047                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMARKS;
2048                                         else if (!strcasecmp(parameter[1], "nomipmaps"))
2049                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2050                                         else if (!strcasecmp(parameter[1], "nonsolid"))
2051                                                 shader.surfaceparms |= Q3SURFACEPARM_NONSOLID;
2052                                         else if (!strcasecmp(parameter[1], "origin"))
2053                                                 shader.surfaceparms |= Q3SURFACEPARM_ORIGIN;
2054                                         else if (!strcasecmp(parameter[1], "playerclip"))
2055                                                 shader.surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
2056                                         else if (!strcasecmp(parameter[1], "sky"))
2057                                                 shader.surfaceparms |= Q3SURFACEPARM_SKY;
2058                                         else if (!strcasecmp(parameter[1], "slick"))
2059                                                 shader.surfaceparms |= Q3SURFACEPARM_SLICK;
2060                                         else if (!strcasecmp(parameter[1], "slime"))
2061                                                 shader.surfaceparms |= Q3SURFACEPARM_SLIME;
2062                                         else if (!strcasecmp(parameter[1], "structural"))
2063                                                 shader.surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
2064                                         else if (!strcasecmp(parameter[1], "trans"))
2065                                                 shader.surfaceparms |= Q3SURFACEPARM_TRANS;
2066                                         else if (!strcasecmp(parameter[1], "water"))
2067                                                 shader.surfaceparms |= Q3SURFACEPARM_WATER;
2068                                         else if (!strcasecmp(parameter[1], "pointlight"))
2069                                                 shader.surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
2070                                         else if (!strcasecmp(parameter[1], "antiportal"))
2071                                                 shader.surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
2072                                         else if (!strcasecmp(parameter[1], "skip"))
2073                                                 ; // shader.surfaceparms |= Q3SURFACEPARM_SKIP; FIXME we don't have enough #defines for this any more, and the engine doesn't need this one anyway
2074                                         else
2075                                         {
2076                                                 // try custom surfaceparms
2077                                                 for (j = 0; j < numcustsurfaceflags; j++)
2078                                                 {
2079                                                         if (!strcasecmp(custsurfaceparmnames[j], parameter[1]))
2080                                                         {
2081                                                                 shader.surfaceflags |= custsurfaceflags[j];
2082                                                                 break;
2083                                                         }
2084                                                 }
2085                                                 // failed all
2086                                                 if (j == numcustsurfaceflags)
2087                                                         Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
2088                                         }
2089                                 }
2090                                 else if (!strcasecmp(parameter[0], "dpshadow"))
2091                                         shader.dpshadow = true;
2092                                 else if (!strcasecmp(parameter[0], "dpnoshadow"))
2093                                         shader.dpnoshadow = true;
2094                                 else if (!strcasecmp(parameter[0], "dpnortlight"))
2095                                         shader.dpnortlight = true;
2096                                 else if (!strcasecmp(parameter[0], "dpreflectcube"))
2097                                         strlcpy(shader.dpreflectcube, parameter[1], sizeof(shader.dpreflectcube));
2098                                 else if (!strcasecmp(parameter[0], "dpmeshcollisions"))
2099                                         shader.dpmeshcollisions = true;
2100                                 // this sets dpshaderkill to true if dpshaderkillifcvarzero was used, and to false if dpnoshaderkillifcvarzero was used
2101                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvarzero")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvarzero")) && numparameters >= 2)
2102                                 {
2103                                         if (Cvar_VariableValue(parameter[1]) == 0.0f)
2104                                                 shader.dpshaderkill = dpshaderkill;
2105                                 }
2106                                 // this sets dpshaderkill to true if dpshaderkillifcvar was used, and to false if dpnoshaderkillifcvar was used
2107                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvar")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvar")) && numparameters >= 2)
2108                                 {
2109                                         const char *op = NULL;
2110                                         if (numparameters >= 3)
2111                                                 op = parameter[2];
2112                                         if(!op)
2113                                         {
2114                                                 if (Cvar_VariableValue(parameter[1]) != 0.0f)
2115                                                         shader.dpshaderkill = dpshaderkill;
2116                                         }
2117                                         else if (numparameters >= 4 && !strcmp(op, "=="))
2118                                         {
2119                                                 if (Cvar_VariableValue(parameter[1]) == atof(parameter[3]))
2120                                                         shader.dpshaderkill = dpshaderkill;
2121                                         }
2122                                         else if (numparameters >= 4 && !strcmp(op, "!="))
2123                                         {
2124                                                 if (Cvar_VariableValue(parameter[1]) != atof(parameter[3]))
2125                                                         shader.dpshaderkill = dpshaderkill;
2126                                         }
2127                                         else if (numparameters >= 4 && !strcmp(op, ">"))
2128                                         {
2129                                                 if (Cvar_VariableValue(parameter[1]) > atof(parameter[3]))
2130                                                         shader.dpshaderkill = dpshaderkill;
2131                                         }
2132                                         else if (numparameters >= 4 && !strcmp(op, "<"))
2133                                         {
2134                                                 if (Cvar_VariableValue(parameter[1]) < atof(parameter[3]))
2135                                                         shader.dpshaderkill = dpshaderkill;
2136                                         }
2137                                         else if (numparameters >= 4 && !strcmp(op, ">="))
2138                                         {
2139                                                 if (Cvar_VariableValue(parameter[1]) >= atof(parameter[3]))
2140                                                         shader.dpshaderkill = dpshaderkill;
2141                                         }
2142                                         else if (numparameters >= 4 && !strcmp(op, "<="))
2143                                         {
2144                                                 if (Cvar_VariableValue(parameter[1]) <= atof(parameter[3]))
2145                                                         shader.dpshaderkill = dpshaderkill;
2146                                         }
2147                                         else
2148                                         {
2149                                                 Con_DPrintf("%s parsing warning: unknown dpshaderkillifcvar op \"%s\", or not enough arguments\n", search->filenames[fileindex], op);
2150                                         }
2151                                 }
2152                                 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
2153                                 {
2154                                         // some q3 skies don't have the sky parm set
2155                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2156                                         strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2157                                 }
2158                                 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
2159                                 {
2160                                         // some q3 skies don't have the sky parm set
2161                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2162                                         if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
2163                                                 strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2164                                 }
2165                                 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
2166                                 {
2167                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
2168                                                 shader.textureflags |= Q3TEXTUREFLAG_TWOSIDED;
2169                                 }
2170                                 else if (!strcasecmp(parameter[0], "nomipmaps"))
2171                                         shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2172                                 else if (!strcasecmp(parameter[0], "nopicmip"))
2173                                         shader.textureflags |= Q3TEXTUREFLAG_NOPICMIP;
2174                                 else if (!strcasecmp(parameter[0], "polygonoffset"))
2175                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2176                                 else if (!strcasecmp(parameter[0], "dppolygonoffset"))
2177                                 {
2178                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2179                                         if(numparameters >= 2)
2180                                         {
2181                                                 shader.biaspolygonfactor = atof(parameter[1]);
2182                                                 if(numparameters >= 3)
2183                                                         shader.biaspolygonoffset = atof(parameter[2]);
2184                                                 else
2185                                                         shader.biaspolygonoffset = 0;
2186                                         }
2187                                 }
2188                                 else if (!strcasecmp(parameter[0], "dptransparentsort") && numparameters >= 2)
2189                                 {
2190                                         shader.textureflags |= Q3TEXTUREFLAG_TRANSPARENTSORT;
2191                                         if (!strcasecmp(parameter[1], "sky"))
2192                                                 shader.transparentsort = TRANSPARENTSORT_SKY;
2193                                         else if (!strcasecmp(parameter[1], "distance"))
2194                                                 shader.transparentsort = TRANSPARENTSORT_DISTANCE;
2195                                         else if (!strcasecmp(parameter[1], "hud"))
2196                                                 shader.transparentsort = TRANSPARENTSORT_HUD;
2197                                         else
2198                                                 Con_DPrintf("%s parsing warning: unknown dptransparentsort category \"%s\", or not enough arguments\n", search->filenames[fileindex], parameter[1]);
2199                                 }
2200                                 else if (!strcasecmp(parameter[0], "dprefract") && numparameters >= 5)
2201                                 {
2202                                         shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
2203                                         shader.refractfactor = atof(parameter[1]);
2204                                         Vector4Set(shader.refractcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), 1);
2205                                 }
2206                                 else if (!strcasecmp(parameter[0], "dpreflect") && numparameters >= 6)
2207                                 {
2208                                         shader.textureflags |= Q3TEXTUREFLAG_REFLECTION;
2209                                         shader.reflectfactor = atof(parameter[1]);
2210                                         Vector4Set(shader.reflectcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), atof(parameter[5]));
2211                                 }
2212                                 else if (!strcasecmp(parameter[0], "dpcamera"))
2213                                 {
2214                                         shader.textureflags |= Q3TEXTUREFLAG_CAMERA;
2215                                 }
2216                                 else if (!strcasecmp(parameter[0], "dpwater") && numparameters >= 12)
2217                                 {
2218                                         shader.textureflags |= Q3TEXTUREFLAG_WATERSHADER;
2219                                         shader.reflectmin = atof(parameter[1]);
2220                                         shader.reflectmax = atof(parameter[2]);
2221                                         shader.refractfactor = atof(parameter[3]);
2222                                         shader.reflectfactor = atof(parameter[4]);
2223                                         Vector4Set(shader.refractcolor4f, atof(parameter[5]), atof(parameter[6]), atof(parameter[7]), 1);
2224                                         Vector4Set(shader.reflectcolor4f, atof(parameter[8]), atof(parameter[9]), atof(parameter[10]), 1);
2225                                         shader.r_water_wateralpha = atof(parameter[11]);
2226                                 }
2227                                 else if (!strcasecmp(parameter[0], "dpwaterscroll") && numparameters >= 3)
2228                                 {
2229                                         shader.r_water_waterscroll[0] = 1/atof(parameter[1]);
2230                                         shader.r_water_waterscroll[1] = 1/atof(parameter[2]);
2231                                 }
2232                                 else if (!strcasecmp(parameter[0], "dpglossintensitymod") && numparameters >= 2)
2233                                 {
2234                                         shader.specularscalemod = atof(parameter[1]);
2235                                 }
2236                                 else if (!strcasecmp(parameter[0], "dpglossexponentmod") && numparameters >= 2)
2237                                 {
2238                                         shader.specularpowermod = atof(parameter[1]);
2239                                 }
2240                                 else if (!strcasecmp(parameter[0], "dprtlightambient") && numparameters >= 2)
2241                                 {
2242                                         shader.rtlightambient = atof(parameter[1]);
2243                                 }
2244                                 else if (!strcasecmp(parameter[0], "dpoffsetmapping") && numparameters >= 2)
2245                                 {
2246                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "off"))
2247                                                 shader.offsetmapping = OFFSETMAPPING_OFF;
2248                                         else if (!strcasecmp(parameter[1], "default") || !strcasecmp(parameter[1], "normal"))
2249                                                 shader.offsetmapping = OFFSETMAPPING_DEFAULT;
2250                                         else if (!strcasecmp(parameter[1], "linear"))
2251                                                 shader.offsetmapping = OFFSETMAPPING_LINEAR;
2252                                         else if (!strcasecmp(parameter[1], "relief"))
2253                                                 shader.offsetmapping = OFFSETMAPPING_RELIEF;
2254                                         if (numparameters >= 3)
2255                                                 shader.offsetscale = atof(parameter[2]);
2256                                         if (numparameters >= 5)
2257                                         {
2258                                                 if(!strcasecmp(parameter[3], "bias"))
2259                                                         shader.offsetbias = atof(parameter[4]);
2260                                                 else if(!strcasecmp(parameter[3], "match"))
2261                                                         shader.offsetbias = 1.0f - atof(parameter[4]);
2262                                                 else if(!strcasecmp(parameter[3], "match8"))
2263                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 255.0f;
2264                                                 else if(!strcasecmp(parameter[3], "match16"))
2265                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 65535.0f;
2266                                         }
2267                                 }
2268                                 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
2269                                 {
2270                                         int i, deformindex;
2271                                         for (deformindex = 0;deformindex < Q3MAXDEFORMS;deformindex++)
2272                                                 if (!shader.deforms[deformindex].deform)
2273                                                         break;
2274                                         if (deformindex < Q3MAXDEFORMS)
2275                                         {
2276                                                 for (i = 0;i < numparameters - 2 && i < Q3DEFORM_MAXPARMS;i++)
2277                                                         shader.deforms[deformindex].parms[i] = atof(parameter[i+2]);
2278                                                      if (!strcasecmp(parameter[1], "projectionshadow")) shader.deforms[deformindex].deform = Q3DEFORM_PROJECTIONSHADOW;
2279                                                 else if (!strcasecmp(parameter[1], "autosprite"      )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE;
2280                                                 else if (!strcasecmp(parameter[1], "autosprite2"     )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE2;
2281                                                 else if (!strcasecmp(parameter[1], "text0"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT0;
2282                                                 else if (!strcasecmp(parameter[1], "text1"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT1;
2283                                                 else if (!strcasecmp(parameter[1], "text2"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT2;
2284                                                 else if (!strcasecmp(parameter[1], "text3"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT3;
2285                                                 else if (!strcasecmp(parameter[1], "text4"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT4;
2286                                                 else if (!strcasecmp(parameter[1], "text5"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT5;
2287                                                 else if (!strcasecmp(parameter[1], "text6"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT6;
2288                                                 else if (!strcasecmp(parameter[1], "text7"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT7;
2289                                                 else if (!strcasecmp(parameter[1], "bulge"           )) shader.deforms[deformindex].deform = Q3DEFORM_BULGE;
2290                                                 else if (!strcasecmp(parameter[1], "normal"          )) shader.deforms[deformindex].deform = Q3DEFORM_NORMAL;
2291                                                 else if (!strcasecmp(parameter[1], "wave"            ))
2292                                                 {
2293                                                         shader.deforms[deformindex].deform = Q3DEFORM_WAVE;
2294                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[3]);
2295                                                         for (i = 0;i < numparameters - 4 && i < Q3WAVEPARMS;i++)
2296                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+4]);
2297                                                 }
2298                                                 else if (!strcasecmp(parameter[1], "move"            ))
2299                                                 {
2300                                                         shader.deforms[deformindex].deform = Q3DEFORM_MOVE;
2301                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[5]);
2302                                                         for (i = 0;i < numparameters - 6 && i < Q3WAVEPARMS;i++)
2303                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+6]);
2304                                                 }
2305                                         }
2306                                 }
2307                         }
2308                         // hide this shader if a cvar said it should be killed
2309                         if (shader.dpshaderkill)
2310                                 shader.numlayers = 0;
2311                         // fix up multiple reflection types
2312                         if(shader.textureflags & Q3TEXTUREFLAG_WATERSHADER)
2313                                 shader.textureflags &= ~(Q3TEXTUREFLAG_REFRACTION | Q3TEXTUREFLAG_REFLECTION | Q3TEXTUREFLAG_CAMERA);
2314
2315                         Q3Shader_AddToHash (&shader);
2316                 }
2317                 Mem_Free(f);
2318         }
2319         FS_FreeSearch(search);
2320         // free custinfoparm values
2321         for (j = 0; j < numcustsurfaceflags; j++)
2322                 Mem_Free(custsurfaceparmnames[j]);
2323 }
2324
2325 q3shaderinfo_t *Mod_LookupQ3Shader(const char *name)
2326 {
2327         unsigned short hash;
2328         q3shader_hash_entry_t* entry;
2329         if (!q3shaders_mem)
2330                 Mod_LoadQ3Shaders();
2331         hash = CRC_Block_CaseInsensitive ((const unsigned char *)name, strlen (name));
2332         entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
2333         while (entry != NULL)
2334         {
2335                 if (strcasecmp (entry->shader.name, name) == 0)
2336                         return &entry->shader;
2337                 entry = entry->chain;
2338         }
2339         return NULL;
2340 }
2341
2342 texture_shaderpass_t *Mod_CreateShaderPass(mempool_t *mempool, skinframe_t *skinframe)
2343 {
2344         texture_shaderpass_t *shaderpass = (texture_shaderpass_t *)Mem_Alloc(mempool, sizeof(*shaderpass));
2345         shaderpass->framerate = 0.0f;
2346         shaderpass->numframes = 1;
2347         shaderpass->blendfunc[0] = GL_ONE;
2348         shaderpass->blendfunc[1] = GL_ZERO;
2349         shaderpass->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
2350         shaderpass->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
2351         shaderpass->alphatest = false;
2352         shaderpass->tcgen.tcgen = Q3TCGEN_TEXTURE;
2353         shaderpass->skinframes[0] = skinframe;
2354         return shaderpass;
2355 }
2356
2357 texture_shaderpass_t *Mod_CreateShaderPassFromQ3ShaderLayer(mempool_t *mempool, const char *modelname, q3shaderinfo_layer_t *layer, int layerindex, int texflags, const char *texturename)
2358 {
2359         int j;
2360         texture_shaderpass_t *shaderpass = (texture_shaderpass_t *)Mem_Alloc(mempool, sizeof(*shaderpass));
2361         shaderpass->alphatest = layer->alphatest != 0;
2362         shaderpass->framerate = layer->framerate;
2363         shaderpass->numframes = layer->numframes;
2364         shaderpass->blendfunc[0] = layer->blendfunc[0];
2365         shaderpass->blendfunc[1] = layer->blendfunc[1];
2366         shaderpass->rgbgen = layer->rgbgen;
2367         shaderpass->alphagen = layer->alphagen;
2368         shaderpass->tcgen = layer->tcgen;
2369         for (j = 0; j < Q3MAXTCMODS && layer->tcmods[j].tcmod != Q3TCMOD_NONE; j++)
2370                 shaderpass->tcmods[j] = layer->tcmods[j];
2371         for (j = 0; j < layer->numframes; j++)
2372                 shaderpass->skinframes[j] = R_SkinFrame_LoadExternal(layer->texturename[j], texflags, false, true);
2373         return shaderpass;
2374 }
2375
2376 qboolean Mod_LoadTextureFromQ3Shader(mempool_t *mempool, const char *modelname, texture_t *texture, const char *name, qboolean warnmissing, qboolean fallback, int defaulttexflags, int defaultmaterialflags)
2377 {
2378         int texflagsmask, texflagsor;
2379         qboolean success = true;
2380         q3shaderinfo_t *shader;
2381         if (!name)
2382                 name = "";
2383         strlcpy(texture->name, name, sizeof(texture->name));
2384         texture->basealpha = 1.0f;
2385         shader = name[0] ? Mod_LookupQ3Shader(name) : NULL;
2386
2387         // allow disabling of picmip or compression by defaulttexflags
2388         texflagsmask = ~0;
2389         if(!(defaulttexflags & TEXF_PICMIP))
2390                 texflagsmask &= ~TEXF_PICMIP;
2391         if(!(defaulttexflags & TEXF_COMPRESS))
2392                 texflagsmask &= ~TEXF_COMPRESS;
2393         texflagsor = 0;
2394         if(defaulttexflags & TEXF_ISWORLD)
2395                 texflagsor |= TEXF_ISWORLD;
2396         if(defaulttexflags & TEXF_ISSPRITE)
2397                 texflagsor |= TEXF_ISSPRITE;
2398         // unless later loaded from the shader
2399         texture->offsetmapping = (mod_noshader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
2400         texture->offsetscale = 1;
2401         texture->offsetbias = 0;
2402         texture->specularscalemod = 1;
2403         texture->specularpowermod = 1;
2404         texture->rtlightambient = 0;
2405         texture->transparentsort = TRANSPARENTSORT_DISTANCE;
2406         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
2407         // JUST GREP FOR "specularscalemod = 1".
2408
2409         if (shader)
2410         {
2411                 if (developer_loading.integer)
2412                         Con_Printf("%s: loaded shader for %s\n", modelname, name);
2413
2414                 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
2415                 {
2416                         texture->basematerialflags = MATERIALFLAG_SKY;
2417                         if (shader->skyboxname[0] && loadmodel)
2418                         {
2419                                 // quake3 seems to append a _ to the skybox name, so this must do so as well
2420                                 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
2421                         }
2422                 }
2423                 else if ((texture->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
2424                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2425                 else
2426                         texture->basematerialflags = MATERIALFLAG_WALL;
2427
2428                 if (shader->layers[0].alphatest)
2429                         texture->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
2430                 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
2431                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
2432                 if (shader->textureflags & Q3TEXTUREFLAG_POLYGONOFFSET)
2433                 {
2434                         texture->biaspolygonoffset += shader->biaspolygonoffset;
2435                         texture->biaspolygonfactor += shader->biaspolygonfactor;
2436                 }
2437                 if (shader->textureflags & Q3TEXTUREFLAG_REFRACTION)
2438                         texture->basematerialflags |= MATERIALFLAG_REFRACTION;
2439                 if (shader->textureflags & Q3TEXTUREFLAG_REFLECTION)
2440                         texture->basematerialflags |= MATERIALFLAG_REFLECTION;
2441                 if (shader->textureflags & Q3TEXTUREFLAG_WATERSHADER)
2442                         texture->basematerialflags |= MATERIALFLAG_WATERSHADER;
2443                 if (shader->textureflags & Q3TEXTUREFLAG_CAMERA)
2444                         texture->basematerialflags |= MATERIALFLAG_CAMERA;
2445                 texture->customblendfunc[0] = GL_ONE;
2446                 texture->customblendfunc[1] = GL_ZERO;
2447                 texture->transparentsort = shader->transparentsort;
2448                 if (shader->numlayers > 0)
2449                 {
2450                         texture->customblendfunc[0] = shader->layers[0].blendfunc[0];
2451                         texture->customblendfunc[1] = shader->layers[0].blendfunc[1];
2452 /*
2453 Q3 shader blendfuncs actually used in the game (* = supported by DP)
2454 * additive               GL_ONE GL_ONE
2455 additive weird         GL_ONE GL_SRC_ALPHA
2456 additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
2457 * alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
2458 alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
2459 brighten               GL_DST_COLOR GL_ONE
2460 brighten               GL_ONE GL_SRC_COLOR
2461 brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
2462 brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
2463 * modulate               GL_DST_COLOR GL_ZERO
2464 * modulate               GL_ZERO GL_SRC_COLOR
2465 modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
2466 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
2467 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
2468 * modulate x2            GL_DST_COLOR GL_SRC_COLOR
2469 * no blend               GL_ONE GL_ZERO
2470 nothing                GL_ZERO GL_ONE
2471 */
2472                         // if not opaque, figure out what blendfunc to use
2473                         if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
2474                         {
2475                                 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
2476                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2477                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
2478                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2479                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2480                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2481                                 else
2482                                         texture->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2483                         }
2484                 }
2485                 if (!shader->lighting)
2486                         texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
2487
2488                 // here be dragons: convert quake3 shaders to material
2489                 if (shader->numlayers > 0)
2490                 {
2491                         int i;
2492                         int terrainbackgroundlayer = -1;
2493                         int lightmaplayer = -1;
2494                         int alphagenspecularlayer = -1;
2495                         int rgbgenvertexlayer = -1;
2496                         int rgbgendiffuselayer = -1;
2497                         int materiallayer = -1;
2498                         int endofprelayers = 0;
2499                         int firstpostlayer = 0;
2500                         int shaderpassindex = 0;
2501                         for (i = 0; i < shader->numlayers; i++)
2502                         {
2503                                 if (shader->layers[i].texturename != NULL && !strcasecmp(shader->layers[i].texturename[0], "$lightmap"))
2504                                         lightmaplayer = i;
2505                                 if (shader->layers[i].rgbgen.rgbgen == Q3RGBGEN_VERTEX)
2506                                         rgbgenvertexlayer = i;
2507                                 if (shader->layers[i].rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE)
2508                                         rgbgendiffuselayer = i;
2509                                 if (shader->layers[i].alphagen.alphagen == Q3ALPHAGEN_LIGHTINGSPECULAR)
2510                                         alphagenspecularlayer = i;
2511                         }
2512                         if (shader->numlayers >= 2
2513                          && shader->layers[1].alphagen.alphagen == Q3ALPHAGEN_VERTEX
2514                          && (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ZERO && !shader->layers[0].alphatest)
2515                          && ((shader->layers[1].blendfunc[0] == GL_SRC_ALPHA && shader->layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2516                                  || (shader->layers[1].blendfunc[0] == GL_ONE && shader->layers[1].blendfunc[1] == GL_ZERO && shader->layers[1].alphatest)))
2517                         {
2518                                 // terrain blend or certain other effects involving alphatest over a regular layer
2519                                 terrainbackgroundlayer = 0;
2520                                 materiallayer = 1;
2521                                 // terrain may be vertex lit (in which case both layers are rgbGen vertex) or lightmapped (in which ase the third layer is lightmap)
2522                                 firstpostlayer = lightmaplayer >= 0 ? lightmaplayer + 1 : materiallayer + 1;
2523                         }
2524                         else if (lightmaplayer == 0)
2525                         {
2526                                 // ordinary texture but with $lightmap before diffuse
2527                                 materiallayer = 1;
2528                                 firstpostlayer = lightmaplayer + 2;
2529                         }
2530                         else if (lightmaplayer >= 1)
2531                         {
2532                                 // ordinary texture - we don't properly apply lighting to the prelayers, but oh well...
2533                                 endofprelayers = lightmaplayer - 1;
2534                                 materiallayer = lightmaplayer - 1;
2535                                 firstpostlayer = lightmaplayer + 1;
2536                         }
2537                         else if (rgbgenvertexlayer >= 0)
2538                         {
2539                                 // map models with baked lighting
2540                                 materiallayer = rgbgenvertexlayer;
2541                                 endofprelayers = rgbgenvertexlayer;
2542                                 firstpostlayer = rgbgenvertexlayer + 1;
2543                                 // special case for rgbgen vertex if MATERIALFLAG_VERTEXCOLOR is expected on this material
2544                                 if (defaultmaterialflags & MATERIALFLAG_VERTEXCOLOR)
2545                                         texture->basematerialflags |= MATERIALFLAG_VERTEXCOLOR;
2546                         }
2547                         else if (rgbgendiffuselayer >= 0)
2548                         {
2549                                 // entity models with dynamic lighting
2550                                 materiallayer = rgbgendiffuselayer;
2551                                 endofprelayers = rgbgendiffuselayer;
2552                                 firstpostlayer = rgbgendiffuselayer + 1;
2553                                 // player models often have specular as a pass after diffuse - we don't currently make use of that specular texture (would need to meld it into the skinframe)...
2554                                 if (alphagenspecularlayer >= 0)
2555                                         firstpostlayer = alphagenspecularlayer + 1;
2556                         }
2557                         else
2558                         {
2559                                 // special effects shaders - treat first as primary layer and do everything else as post
2560                                 endofprelayers = 0;
2561                                 materiallayer = 0;
2562                                 firstpostlayer = 1;
2563                         }
2564                         // convert the main material layer
2565                         // FIXME: if alphagenspecularlayer is used, we should pass a specular texture name to R_SkinFrame_LoadExternal and have it load that texture instead of the assumed name for _gloss texture
2566                         if (materiallayer >= 0)
2567                                 texture->materialshaderpass = texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[materiallayer], materiallayer, (shader->layers[materiallayer].dptexflags & texflagsmask) | texflagsor, texture->name);
2568                         // convert the terrain background blend layer (if any)
2569                         if (terrainbackgroundlayer >= 0)
2570                                 texture->backgroundshaderpass = texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[terrainbackgroundlayer], terrainbackgroundlayer, (shader->layers[terrainbackgroundlayer].dptexflags & texflagsmask) | texflagsor, texture->name);
2571                         // convert the prepass layers (if any)
2572                         texture->startpreshaderpass = shaderpassindex;
2573                         for (i = 0; i < endofprelayers; i++)
2574                                 texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[i], i, (shader->layers[i].dptexflags & texflagsmask) | texflagsor, texture->name);
2575                         texture->endpreshaderpass = shaderpassindex;
2576                         texture->startpostshaderpass = shaderpassindex;
2577                         // convert the postpass layers (if any)
2578                         for (i = firstpostlayer; i < shader->numlayers; i++)
2579                                 texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[i], i, (shader->layers[i].dptexflags & texflagsmask) | texflagsor, texture->name);
2580                         texture->startpostshaderpass = shaderpassindex;
2581                 }
2582
2583                 if (shader->dpshadow)
2584                         texture->basematerialflags &= ~MATERIALFLAG_NOSHADOW;
2585                 if (shader->dpnoshadow)
2586                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW;
2587                 if (shader->dpnortlight)
2588                         texture->basematerialflags |= MATERIALFLAG_NORTLIGHT;
2589                 if (shader->vertexalpha)
2590                         texture->basematerialflags |= MATERIALFLAG_ALPHAGEN_VERTEX;
2591                 memcpy(texture->deforms, shader->deforms, sizeof(texture->deforms));
2592                 texture->reflectmin = shader->reflectmin;
2593                 texture->reflectmax = shader->reflectmax;
2594                 texture->refractfactor = shader->refractfactor;
2595                 Vector4Copy(shader->refractcolor4f, texture->refractcolor4f);
2596                 texture->reflectfactor = shader->reflectfactor;
2597                 Vector4Copy(shader->reflectcolor4f, texture->reflectcolor4f);
2598                 texture->r_water_wateralpha = shader->r_water_wateralpha;
2599                 Vector2Copy(shader->r_water_waterscroll, texture->r_water_waterscroll);
2600                 texture->offsetmapping = shader->offsetmapping;
2601                 texture->offsetscale = shader->offsetscale;
2602                 texture->offsetbias = shader->offsetbias;
2603                 texture->specularscalemod = shader->specularscalemod;
2604                 texture->specularpowermod = shader->specularpowermod;
2605                 texture->rtlightambient = shader->rtlightambient;
2606                 if (shader->dpreflectcube[0])
2607                         texture->reflectcubetexture = R_GetCubemap(shader->dpreflectcube);
2608
2609                 // set up default supercontents (on q3bsp this is overridden by the q3bsp loader)
2610                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2611                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents  = SUPERCONTENTS_LAVA         ;
2612                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents  = SUPERCONTENTS_SLIME        ;
2613                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents  = SUPERCONTENTS_WATER        ;
2614                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents  = 0                          ;
2615                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents  = SUPERCONTENTS_PLAYERCLIP   ;
2616                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents  = SUPERCONTENTS_MONSTERCLIP  ;
2617                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents  = SUPERCONTENTS_SKY          ;
2618
2619         //      if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->supercontents |= SUPERCONTENTS_ALPHASHADOW  ;
2620         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->supercontents |= SUPERCONTENTS_AREAPORTAL   ;
2621         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->supercontents |= SUPERCONTENTS_CLUSTERPORTAL;
2622         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->supercontents |= SUPERCONTENTS_DETAIL       ;
2623                 if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->supercontents |= SUPERCONTENTS_DONOTENTER   ;
2624         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->supercontents |= SUPERCONTENTS_FOG          ;
2625                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents |= SUPERCONTENTS_LAVA         ;
2626         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->supercontents |= SUPERCONTENTS_LIGHTFILTER  ;
2627         //      if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->supercontents |= SUPERCONTENTS_METALSTEPS   ;
2628         //      if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->supercontents |= SUPERCONTENTS_NODAMAGE     ;
2629         //      if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->supercontents |= SUPERCONTENTS_NODLIGHT     ;
2630         //      if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->supercontents |= SUPERCONTENTS_NODRAW       ;
2631                 if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->supercontents |= SUPERCONTENTS_NODROP       ;
2632         //      if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->supercontents |= SUPERCONTENTS_NOIMPACT     ;
2633         //      if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->supercontents |= SUPERCONTENTS_NOLIGHTMAP   ;
2634         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->supercontents |= SUPERCONTENTS_NOMARKS      ;
2635         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->supercontents |= SUPERCONTENTS_NOMIPMAPS    ;
2636                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents &=~SUPERCONTENTS_SOLID        ;
2637         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->supercontents |= SUPERCONTENTS_ORIGIN       ;
2638                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents |= SUPERCONTENTS_PLAYERCLIP   ;
2639                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents |= SUPERCONTENTS_SKY          ;
2640         //      if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->supercontents |= SUPERCONTENTS_SLICK        ;
2641                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents |= SUPERCONTENTS_SLIME        ;
2642         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->supercontents |= SUPERCONTENTS_STRUCTURAL   ;
2643         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->supercontents |= SUPERCONTENTS_TRANS        ;
2644                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents |= SUPERCONTENTS_WATER        ;
2645         //      if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->supercontents |= SUPERCONTENTS_POINTLIGHT   ;
2646         //      if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->supercontents |= SUPERCONTENTS_HINT         ;
2647         //      if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->supercontents |= SUPERCONTENTS_DUST         ;
2648                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents |= SUPERCONTENTS_BOTCLIP      | SUPERCONTENTS_MONSTERCLIP;
2649         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->supercontents |= SUPERCONTENTS_LIGHTGRID    ;
2650         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->supercontents |= SUPERCONTENTS_ANTIPORTAL   ;
2651
2652                 texture->surfaceflags = shader->surfaceflags;
2653                 if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->surfaceflags |= Q3SURFACEFLAG_ALPHASHADOW  ;
2654         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_AREAPORTAL   ;
2655         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->surfaceflags |= Q3SURFACEFLAG_CLUSTERPORTAL;
2656         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->surfaceflags |= Q3SURFACEFLAG_DETAIL       ;
2657         //      if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->surfaceflags |= Q3SURFACEFLAG_DONOTENTER   ;
2658         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->surfaceflags |= Q3SURFACEFLAG_FOG          ;
2659         //      if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->surfaceflags |= Q3SURFACEFLAG_LAVA         ;
2660                 if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTFILTER  ;
2661                 if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->surfaceflags |= Q3SURFACEFLAG_METALSTEPS   ;
2662                 if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->surfaceflags |= Q3SURFACEFLAG_NODAMAGE     ;
2663                 if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->surfaceflags |= Q3SURFACEFLAG_NODLIGHT     ;
2664                 if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->surfaceflags |= Q3SURFACEFLAG_NODRAW       ;
2665         //      if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->surfaceflags |= Q3SURFACEFLAG_NODROP       ;
2666                 if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->surfaceflags |= Q3SURFACEFLAG_NOIMPACT     ;
2667                 if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->surfaceflags |= Q3SURFACEFLAG_NOLIGHTMAP   ;
2668                 if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->surfaceflags |= Q3SURFACEFLAG_NOMARKS      ;
2669         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->surfaceflags |= Q3SURFACEFLAG_NOMIPMAPS    ;
2670                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->surfaceflags |= Q3SURFACEFLAG_NONSOLID     ;
2671         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->surfaceflags |= Q3SURFACEFLAG_ORIGIN       ;
2672         //      if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->surfaceflags |= Q3SURFACEFLAG_PLAYERCLIP   ;
2673                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->surfaceflags |= Q3SURFACEFLAG_SKY          ;
2674                 if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->surfaceflags |= Q3SURFACEFLAG_SLICK        ;
2675         //      if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->surfaceflags |= Q3SURFACEFLAG_SLIME        ;
2676         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->surfaceflags |= Q3SURFACEFLAG_STRUCTURAL   ;
2677         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->surfaceflags |= Q3SURFACEFLAG_TRANS        ;
2678         //      if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->surfaceflags |= Q3SURFACEFLAG_WATER        ;
2679                 if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->surfaceflags |= Q3SURFACEFLAG_POINTLIGHT   ;
2680                 if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->surfaceflags |= Q3SURFACEFLAG_HINT         ;
2681                 if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->surfaceflags |= Q3SURFACEFLAG_DUST         ;
2682         //      if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->surfaceflags |= Q3SURFACEFLAG_BOTCLIP      ;
2683         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTGRID    ;
2684         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_ANTIPORTAL   ;
2685
2686                 if (shader->dpmeshcollisions)
2687                         texture->basematerialflags |= MATERIALFLAG_MESHCOLLISIONS;
2688                 if (shader->dpshaderkill && developer_extra.integer)
2689                         Con_DPrintf("^1%s:^7 killing shader ^3\"%s\" because of cvar\n", modelname, name);
2690         }
2691         else if (!strcmp(texture->name, "noshader") || !texture->name[0])
2692         {
2693                 if (developer_extra.integer)
2694                         Con_DPrintf("^1%s:^7 using fallback noshader material for ^3\"%s\"\n", modelname, name);
2695                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2696         }
2697         else if (!strcmp(texture->name, "common/nodraw") || !strcmp(texture->name, "textures/common/nodraw"))
2698         {
2699                 if (developer_extra.integer)
2700                         Con_DPrintf("^1%s:^7 using fallback nodraw material for ^3\"%s\"\n", modelname, name);
2701                 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2702                 texture->supercontents = SUPERCONTENTS_SOLID;
2703         }
2704         else
2705         {
2706                 if (developer_extra.integer)
2707                         Con_DPrintf("^1%s:^7 No shader found for texture ^3\"%s\"\n", modelname, texture->name);
2708                 if (texture->surfaceflags & Q3SURFACEFLAG_NODRAW)
2709                 {
2710                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2711                         texture->supercontents = SUPERCONTENTS_SOLID;
2712                 }
2713                 else if (texture->surfaceflags & Q3SURFACEFLAG_SKY)
2714                 {
2715                         texture->basematerialflags = MATERIALFLAG_SKY;
2716                         texture->supercontents = SUPERCONTENTS_SKY;
2717                 }
2718                 else
2719                 {
2720                         texture->basematerialflags = defaultmaterialflags;
2721                         texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2722                 }
2723                 if(cls.state == ca_dedicated)
2724                 {
2725                         texture->materialshaderpass = NULL;
2726                         success = false;
2727                 }
2728                 else
2729                 {
2730                         skinframe_t *skinframe = R_SkinFrame_LoadExternal(texture->name, defaulttexflags, false, fallback);
2731                         if (skinframe)
2732                         {
2733                                 texture->materialshaderpass = texture->shaderpasses[0] = Mod_CreateShaderPass(mempool, skinframe);
2734                                 if (texture->materialshaderpass->skinframes[0]->hasalpha)
2735                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2736                                 if (texture->q2contents)
2737                                         texture->supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(texture->q2contents);
2738                         }
2739                         else
2740                                 success = false;
2741                         if (!success && warnmissing)
2742                                 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"\n", modelname, texture->name);
2743                 }
2744         }
2745         // init the animation variables
2746         texture->currentframe = texture;
2747         texture->currentmaterialflags = texture->basematerialflags;
2748         if (!texture->materialshaderpass)
2749                 texture->materialshaderpass = texture->shaderpasses[0] = Mod_CreateShaderPass(mempool, R_SkinFrame_LoadMissing());
2750         if (!texture->materialshaderpass->skinframes[0])
2751                 texture->materialshaderpass->skinframes[0] = R_SkinFrame_LoadMissing();
2752         texture->currentskinframe = texture->materialshaderpass ? texture->materialshaderpass->skinframes[0] : NULL;
2753         texture->backgroundcurrentskinframe = texture->backgroundshaderpass ? texture->backgroundshaderpass->skinframes[0] : NULL;
2754         return success;
2755 }
2756
2757 void Mod_LoadCustomMaterial(mempool_t *mempool, texture_t *texture, const char *name, int supercontents, int materialflags, skinframe_t *skinframe)
2758 {
2759         if (!(materialflags & (MATERIALFLAG_WALL | MATERIALFLAG_SKY)))
2760                 Con_DPrintf("^1Custom texture ^3\"%s\" does not have MATERIALFLAG_WALL set\n", texture->name);
2761
2762         strlcpy(texture->name, name, sizeof(texture->name));
2763         texture->basealpha = 1.0f;
2764         texture->basematerialflags = materialflags;
2765         texture->supercontents = supercontents;
2766
2767         texture->offsetmapping = (mod_noshader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
2768         texture->offsetscale = 1;
2769         texture->offsetbias = 0;
2770         texture->specularscalemod = 1;
2771         texture->specularpowermod = 1;
2772         texture->rtlightambient = 0;
2773         texture->transparentsort = TRANSPARENTSORT_DISTANCE;
2774         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
2775         // JUST GREP FOR "specularscalemod = 1".
2776
2777         if (developer_extra.integer)
2778                 Con_DPrintf("^1Custom texture ^3\"%s\"\n", texture->name);
2779         if (skinframe)
2780                 texture->materialshaderpass = texture->shaderpasses[0] = Mod_CreateShaderPass(mempool, skinframe);
2781
2782         // init the animation variables
2783         texture->currentmaterialflags = texture->basematerialflags;
2784         texture->currentframe = texture;
2785         texture->currentskinframe = skinframe;
2786         texture->backgroundcurrentskinframe = NULL;
2787 }
2788
2789 void Mod_UnloadCustomMaterial(texture_t *texture, qboolean purgeskins)
2790 {
2791         int i, j;
2792         for (i = 0; i < sizeof(texture->shaderpasses) / sizeof(texture->shaderpasses[0]); i++)
2793         {
2794                 if (texture->shaderpasses[i])
2795                 {
2796                         if (purgeskins)
2797                                 for (j = 0; j < sizeof(texture->shaderpasses[i]->skinframes) / sizeof(skinframe_t *);j++)
2798                                         if (texture->shaderpasses[i]->skinframes[j] && texture->shaderpasses[i]->skinframes[j]->base)
2799                                                 R_SkinFrame_PurgeSkinFrame(texture->shaderpasses[i]->skinframes[j]);
2800                         Mem_Free(texture->shaderpasses[i]);
2801                         texture->shaderpasses[i] = NULL;
2802                 }
2803         }
2804         texture->materialshaderpass = NULL;
2805         texture->currentskinframe = NULL;
2806         texture->backgroundcurrentskinframe = NULL;
2807 }
2808
2809 skinfile_t *Mod_LoadSkinFiles(void)
2810 {
2811         int i, words, line, wordsoverflow;
2812         char *text;
2813         const char *data;
2814         skinfile_t *skinfile = NULL, *first = NULL;
2815         skinfileitem_t *skinfileitem;
2816         char word[10][MAX_QPATH];
2817         char vabuf[1024];
2818
2819 /*
2820 sample file:
2821 U_bodyBox,models/players/Legoman/BikerA2.tga
2822 U_RArm,models/players/Legoman/BikerA1.tga
2823 U_LArm,models/players/Legoman/BikerA1.tga
2824 U_armor,common/nodraw
2825 U_sword,common/nodraw
2826 U_shield,common/nodraw
2827 U_homb,common/nodraw
2828 U_backpack,common/nodraw
2829 U_colcha,common/nodraw
2830 tag_head,
2831 tag_weapon,
2832 tag_torso,
2833 */
2834         memset(word, 0, sizeof(word));
2835         for (i = 0;i < 256 && (data = text = (char *)FS_LoadFile(va(vabuf, sizeof(vabuf), "%s_%i.skin", loadmodel->name, i), tempmempool, true, NULL));i++)
2836         {
2837                 // If it's the first file we parse
2838                 if (skinfile == NULL)
2839                 {
2840                         skinfile = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2841                         first = skinfile;
2842                 }
2843                 else
2844                 {
2845                         skinfile->next = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2846                         skinfile = skinfile->next;
2847                 }
2848                 skinfile->next = NULL;
2849
2850                 for(line = 0;;line++)
2851                 {
2852                         // parse line
2853                         if (!COM_ParseToken_QuakeC(&data, true))
2854                                 break;
2855                         if (!strcmp(com_token, "\n"))
2856                                 continue;
2857                         words = 0;
2858                         wordsoverflow = false;
2859                         do
2860                         {
2861                                 if (words < 10)
2862                                         strlcpy(word[words++], com_token, sizeof (word[0]));
2863                                 else
2864                                         wordsoverflow = true;
2865                         }
2866                         while (COM_ParseToken_QuakeC(&data, true) && strcmp(com_token, "\n"));
2867                         if (wordsoverflow)
2868                         {
2869                                 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);
2870                                 continue;
2871                         }
2872                         // words is always >= 1
2873                         if (!strcmp(word[0], "replace"))
2874                         {
2875                                 if (words == 3)
2876                                 {
2877                                         if (developer_loading.integer)
2878                                                 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
2879                                         skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2880                                         skinfileitem->next = skinfile->items;
2881                                         skinfile->items = skinfileitem;
2882                                         strlcpy (skinfileitem->name, word[1], sizeof (skinfileitem->name));
2883                                         strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2884                                 }
2885                                 else
2886                                         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]);
2887                         }
2888                         else if (words >= 2 && !strncmp(word[0], "tag_", 4))
2889                         {
2890                                 // tag name, like "tag_weapon,"
2891                                 // not used for anything (not even in Quake3)
2892                         }
2893                         else if (words >= 2 && !strcmp(word[1], ","))
2894                         {
2895                                 // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
2896                                 if (developer_loading.integer)
2897                                         Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
2898                                 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2899                                 skinfileitem->next = skinfile->items;
2900                                 skinfile->items = skinfileitem;
2901                                 strlcpy (skinfileitem->name, word[0], sizeof (skinfileitem->name));
2902                                 strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2903                         }
2904                         else
2905                                 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);
2906                 }
2907                 Mem_Free(text);
2908         }
2909         if (i)
2910                 loadmodel->numskins = i;
2911         return first;
2912 }
2913
2914 void Mod_FreeSkinFiles(skinfile_t *skinfile)
2915 {
2916         skinfile_t *next;
2917         skinfileitem_t *skinfileitem, *nextitem;
2918         for (;skinfile;skinfile = next)
2919         {
2920                 next = skinfile->next;
2921                 for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
2922                 {
2923                         nextitem = skinfileitem->next;
2924                         Mem_Free(skinfileitem);
2925                 }
2926                 Mem_Free(skinfile);
2927         }
2928 }
2929
2930 int Mod_CountSkinFiles(skinfile_t *skinfile)
2931 {
2932         int i;
2933         for (i = 0;skinfile;skinfile = skinfile->next, i++);
2934         return i;
2935 }
2936
2937 void Mod_SnapVertices(int numcomponents, int numvertices, float *vertices, float snap)
2938 {
2939         int i;
2940         double isnap = 1.0 / snap;
2941         for (i = 0;i < numvertices*numcomponents;i++)
2942                 vertices[i] = floor(vertices[i]*isnap)*snap;
2943 }
2944
2945 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
2946 {
2947         int i, outtriangles;
2948         float edgedir1[3], edgedir2[3], temp[3];
2949         // a degenerate triangle is one with no width (thickness, surface area)
2950         // these are characterized by having all 3 points colinear (along a line)
2951         // or having two points identical
2952         // the simplest check is to calculate the triangle's area
2953         for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
2954         {
2955                 // calculate first edge
2956                 VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir1);
2957                 VectorSubtract(vertex3f + inelement3i[2] * 3, vertex3f + inelement3i[0] * 3, edgedir2);
2958                 CrossProduct(edgedir1, edgedir2, temp);
2959                 if (VectorLength2(temp) < 0.001f)
2960                         continue; // degenerate triangle (no area)
2961                 // valid triangle (has area)
2962                 VectorCopy(inelement3i, outelement3i);
2963                 outelement3i += 3;
2964                 outtriangles++;
2965         }
2966         return outtriangles;
2967 }
2968
2969 void Mod_VertexRangeFromElements(int numelements, const int *elements, int *firstvertexpointer, int *lastvertexpointer)
2970 {
2971         int i, e;
2972         int firstvertex, lastvertex;
2973         if (numelements > 0 && elements)
2974         {
2975                 firstvertex = lastvertex = elements[0];
2976                 for (i = 1;i < numelements;i++)
2977                 {
2978                         e = elements[i];
2979                         firstvertex = min(firstvertex, e);
2980                         lastvertex = max(lastvertex, e);
2981                 }
2982         }
2983         else
2984                 firstvertex = lastvertex = 0;
2985         if (firstvertexpointer)
2986                 *firstvertexpointer = firstvertex;
2987         if (lastvertexpointer)
2988                 *lastvertexpointer = lastvertex;
2989 }
2990
2991 void Mod_MakeSortedSurfaces(dp_model_t *mod)
2992 {
2993         // make an optimal set of texture-sorted batches to draw...
2994         int j, t;
2995         int *firstsurfacefortexture;
2996         int *numsurfacesfortexture;
2997         if (!mod->sortedmodelsurfaces)
2998                 mod->sortedmodelsurfaces = (int *) Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->sortedmodelsurfaces));
2999         firstsurfacefortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*firstsurfacefortexture));
3000         numsurfacesfortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*numsurfacesfortexture));
3001         memset(numsurfacesfortexture, 0, mod->num_textures * sizeof(*numsurfacesfortexture));
3002         for (j = 0;j < mod->nummodelsurfaces;j++)
3003         {
3004                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
3005                 t = (int)(surface->texture - mod->data_textures);
3006                 numsurfacesfortexture[t]++;
3007         }
3008         j = 0;
3009         for (t = 0;t < mod->num_textures;t++)
3010         {
3011                 firstsurfacefortexture[t] = j;
3012                 j += numsurfacesfortexture[t];
3013         }
3014         for (j = 0;j < mod->nummodelsurfaces;j++)
3015         {
3016                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
3017                 t = (int)(surface->texture - mod->data_textures);
3018                 mod->sortedmodelsurfaces[firstsurfacefortexture[t]++] = j + mod->firstmodelsurface;
3019         }
3020         Mem_Free(firstsurfacefortexture);
3021         Mem_Free(numsurfacesfortexture);
3022 }
3023
3024 void Mod_BuildVBOs(void)
3025 {
3026         if (!loadmodel->surfmesh.num_vertices)
3027                 return;
3028
3029         if (gl_paranoid.integer && loadmodel->surfmesh.data_element3s && loadmodel->surfmesh.data_element3i)
3030         {
3031                 int i;
3032                 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
3033                 {
3034                         if (loadmodel->surfmesh.data_element3s[i] != loadmodel->surfmesh.data_element3i[i])
3035                         {
3036                                 Con_Printf("Mod_BuildVBOs: element %u is incorrect (%u should be %u)\n", i, loadmodel->surfmesh.data_element3s[i], loadmodel->surfmesh.data_element3i[i]);
3037                                 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
3038                         }
3039                 }
3040         }
3041
3042         // build r_vertexmesh_t array
3043         // (compressed interleaved array for D3D)
3044         if (!loadmodel->surfmesh.data_vertexmesh && vid.useinterleavedarrays)
3045         {
3046                 int vertexindex;
3047                 int numvertices = loadmodel->surfmesh.num_vertices;
3048                 r_vertexmesh_t *vertexmesh;
3049                 loadmodel->surfmesh.data_vertexmesh = vertexmesh = (r_vertexmesh_t*)Mem_Alloc(loadmodel->mempool, numvertices * sizeof(r_vertexmesh_t));
3050                 for (vertexindex = 0;vertexindex < numvertices;vertexindex++, vertexmesh++)
3051                 {
3052                         VectorCopy(loadmodel->surfmesh.data_vertex3f + 3*vertexindex, vertexmesh->vertex3f);
3053                         VectorScale(loadmodel->surfmesh.data_svector3f + 3*vertexindex, 1.0f, vertexmesh->svector3f);
3054                         VectorScale(loadmodel->surfmesh.data_tvector3f + 3*vertexindex, 1.0f, vertexmesh->tvector3f);
3055                         VectorScale(loadmodel->surfmesh.data_normal3f + 3*vertexindex, 1.0f, vertexmesh->normal3f);
3056                         if (loadmodel->surfmesh.data_lightmapcolor4f)
3057                                 Vector4Copy(loadmodel->surfmesh.data_lightmapcolor4f + 4*vertexindex, vertexmesh->color4f);
3058                         Vector2Copy(loadmodel->surfmesh.data_texcoordtexture2f + 2*vertexindex, vertexmesh->texcoordtexture2f);
3059                         if (loadmodel->surfmesh.data_texcoordlightmap2f)
3060                                 Vector2Scale(loadmodel->surfmesh.data_texcoordlightmap2f + 2*vertexindex, 1.0f, vertexmesh->texcoordlightmap2f);
3061                         if (loadmodel->surfmesh.data_skeletalindex4ub)
3062                                 Vector4Copy(loadmodel->surfmesh.data_skeletalindex4ub + 4*vertexindex, vertexmesh->skeletalindex4ub);
3063                         if (loadmodel->surfmesh.data_skeletalweight4ub)
3064                                 Vector4Copy(loadmodel->surfmesh.data_skeletalweight4ub + 4*vertexindex, vertexmesh->skeletalweight4ub);
3065                 }
3066         }
3067
3068         // upload short indices as a buffer
3069         if (loadmodel->surfmesh.data_element3s && !loadmodel->surfmesh.data_element3s_indexbuffer)
3070                 loadmodel->surfmesh.data_element3s_indexbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_element3s, loadmodel->surfmesh.num_triangles * sizeof(short[3]), loadmodel->name, true, false, false, true);
3071
3072         // upload int indices as a buffer
3073         if (loadmodel->surfmesh.data_element3i && !loadmodel->surfmesh.data_element3i_indexbuffer && !loadmodel->surfmesh.data_element3s)
3074                 loadmodel->surfmesh.data_element3i_indexbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles * sizeof(int[3]), loadmodel->name, true, false, false, false);
3075
3076         // only build a vbo if one has not already been created (this is important for brush models which load specially)
3077         // vertex buffer is several arrays and we put them in the same buffer
3078         //
3079         // is this wise?  the texcoordtexture2f array is used with dynamic
3080         // vertex/svector/tvector/normal when rendering animated models, on the
3081         // other hand animated models don't use a lot of vertices anyway...
3082         if (!loadmodel->surfmesh.vbo_vertexbuffer && !vid.useinterleavedarrays)
3083         {
3084                 int size;
3085                 unsigned char *mem;
3086                 size = 0;
3087                 loadmodel->surfmesh.vbooffset_vertexmesh         = size;if (loadmodel->surfmesh.data_vertexmesh        ) size += loadmodel->surfmesh.num_vertices * sizeof(r_vertexmesh_t);
3088                 loadmodel->surfmesh.vbooffset_vertex3f           = size;if (loadmodel->surfmesh.data_vertex3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3089                 loadmodel->surfmesh.vbooffset_svector3f          = size;if (loadmodel->surfmesh.data_svector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3090                 loadmodel->surfmesh.vbooffset_tvector3f          = size;if (loadmodel->surfmesh.data_tvector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3091                 loadmodel->surfmesh.vbooffset_normal3f           = size;if (loadmodel->surfmesh.data_normal3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3092                 loadmodel->surfmesh.vbooffset_texcoordtexture2f  = size;if (loadmodel->surfmesh.data_texcoordtexture2f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
3093                 loadmodel->surfmesh.vbooffset_texcoordlightmap2f = size;if (loadmodel->surfmesh.data_texcoordlightmap2f) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
3094                 loadmodel->surfmesh.vbooffset_lightmapcolor4f    = size;if (loadmodel->surfmesh.data_lightmapcolor4f   ) size += loadmodel->surfmesh.num_vertices * sizeof(float[4]);
3095                 loadmodel->surfmesh.vbooffset_skeletalindex4ub   = size;if (loadmodel->surfmesh.data_skeletalindex4ub  ) size += loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]);
3096                 loadmodel->surfmesh.vbooffset_skeletalweight4ub  = size;if (loadmodel->surfmesh.data_skeletalweight4ub ) size += loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]);
3097                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
3098                 if (loadmodel->surfmesh.data_vertexmesh        ) memcpy(mem + loadmodel->surfmesh.vbooffset_vertexmesh        , loadmodel->surfmesh.data_vertexmesh        , loadmodel->surfmesh.num_vertices * sizeof(r_vertexmesh_t));
3099                 if (loadmodel->surfmesh.data_vertex3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_vertex3f          , loadmodel->surfmesh.data_vertex3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3100                 if (loadmodel->surfmesh.data_svector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_svector3f         , loadmodel->surfmesh.data_svector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3101                 if (loadmodel->surfmesh.data_tvector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_tvector3f         , loadmodel->surfmesh.data_tvector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3102                 if (loadmodel->surfmesh.data_normal3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_normal3f          , loadmodel->surfmesh.data_normal3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3103                 if (loadmodel->surfmesh.data_texcoordtexture2f ) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordtexture2f , loadmodel->surfmesh.data_texcoordtexture2f , loadmodel->surfmesh.num_vertices * sizeof(float[2]));
3104                 if (loadmodel->surfmesh.data_texcoordlightmap2f) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordlightmap2f, loadmodel->surfmesh.data_texcoordlightmap2f, loadmodel->surfmesh.num_vertices * sizeof(float[2]));
3105                 if (loadmodel->surfmesh.data_lightmapcolor4f   ) memcpy(mem + loadmodel->surfmesh.vbooffset_lightmapcolor4f   , loadmodel->surfmesh.data_lightmapcolor4f   , loadmodel->surfmesh.num_vertices * sizeof(float[4]));
3106                 if (loadmodel->surfmesh.data_skeletalindex4ub  ) memcpy(mem + loadmodel->surfmesh.vbooffset_skeletalindex4ub  , loadmodel->surfmesh.data_skeletalindex4ub  , loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]));
3107                 if (loadmodel->surfmesh.data_skeletalweight4ub ) memcpy(mem + loadmodel->surfmesh.vbooffset_skeletalweight4ub , loadmodel->surfmesh.data_skeletalweight4ub , loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]));
3108                 loadmodel->surfmesh.vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, loadmodel->name, false, false, false, false);
3109                 Mem_Free(mem);
3110         }
3111 }
3112
3113 extern cvar_t mod_obj_orientation;
3114 static void Mod_Decompile_OBJ(dp_model_t *model, const char *filename, const char *mtlfilename, const char *originalfilename)
3115 {
3116         int submodelindex, vertexindex, surfaceindex, triangleindex, textureindex, countvertices = 0, countsurfaces = 0, countfaces = 0, counttextures = 0;
3117         int a, b, c;
3118         const char *texname;
3119         const int *e;
3120         const float *v, *vn, *vt;
3121         size_t l;
3122         size_t outbufferpos = 0;
3123         size_t outbuffermax = 0x100000;
3124         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3125         const msurface_t *surface;
3126         const int maxtextures = 256;
3127         char *texturenames = (char *) Z_Malloc(maxtextures * MAX_QPATH);
3128         dp_model_t *submodel;
3129
3130         // construct the mtllib file
3131         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "# mtllib for %s exported by darkplaces engine\n", originalfilename);
3132         if (l > 0)
3133                 outbufferpos += l;
3134         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3135         {
3136                 countsurfaces++;
3137                 countvertices += surface->num_vertices;
3138                 countfaces += surface->num_triangles;
3139                 texname = (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default";
3140                 for (textureindex = 0;textureindex < counttextures;textureindex++)
3141                         if (!strcmp(texturenames + textureindex * MAX_QPATH, texname))
3142                                 break;
3143                 if (textureindex < counttextures)
3144                         continue; // already wrote this material entry
3145                 if (textureindex >= maxtextures)
3146                         continue; // just a precaution
3147                 textureindex = counttextures++;
3148                 strlcpy(texturenames + textureindex * MAX_QPATH, texname, MAX_QPATH);
3149                 if (outbufferpos >= outbuffermax >> 1)
3150                 {
3151                         outbuffermax *= 2;
3152                         oldbuffer = outbuffer;
3153                         outbuffer = (char *) Z_Malloc(outbuffermax);
3154                         memcpy(outbuffer, oldbuffer, outbufferpos);
3155                         Z_Free(oldbuffer);
3156                 }
3157                 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");
3158                 if (l > 0)
3159                         outbufferpos += l;
3160         }
3161
3162         // write the mtllib file
3163         FS_WriteFile(mtlfilename, outbuffer, outbufferpos);
3164
3165         // construct the obj file
3166         outbufferpos = 0;
3167         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);
3168         if (l > 0)
3169                 outbufferpos += l;
3170
3171         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)
3172         {
3173                 if (outbufferpos >= outbuffermax >> 1)
3174                 {
3175                         outbuffermax *= 2;
3176                         oldbuffer = outbuffer;
3177                         outbuffer = (char *) Z_Malloc(outbuffermax);
3178                         memcpy(outbuffer, oldbuffer, outbufferpos);
3179                         Z_Free(oldbuffer);
3180                 }
3181                 if(mod_obj_orientation.integer)
3182                         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]);
3183                 else
3184                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "v %f %f %f\nvn %f %f %f\nvt %f %f\n", v[0], v[1], v[2], vn[0], vn[1], vn[2], vt[0], 1-vt[1]);
3185                 if (l > 0)
3186                         outbufferpos += l;
3187         }
3188
3189         for (submodelindex = 0;submodelindex < max(1, model->brush.numsubmodels);submodelindex++)
3190         {
3191                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "o %i\n", submodelindex);
3192                 if (l > 0)
3193                         outbufferpos += l;
3194                 submodel = model->brush.numsubmodels ? model->brush.submodels[submodelindex] : model;
3195                 for (surfaceindex = 0;surfaceindex < submodel->nummodelsurfaces;surfaceindex++)
3196                 {
3197                         surface = model->data_surfaces + submodel->sortedmodelsurfaces[surfaceindex];
3198                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "usemtl %s\n", (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default");
3199                         if (l > 0)
3200                                 outbufferpos += l;
3201                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3202                         {
3203                                 if (outbufferpos >= outbuffermax >> 1)
3204                                 {
3205                                         outbuffermax *= 2;
3206                                         oldbuffer = outbuffer;
3207                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3208                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3209                                         Z_Free(oldbuffer);
3210                                 }
3211                                 a = e[0]+1;
3212                                 b = e[1]+1;
3213                                 c = e[2]+1;
3214                                 if(mod_obj_orientation.integer)
3215                                         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);
3216                                 else
3217                                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "f %i/%i/%i %i/%i/%i %i/%i/%i\n", a,a,a,c,c,c,b,b,b);
3218                                 if (l > 0)
3219                                         outbufferpos += l;
3220                         }
3221                 }
3222         }
3223
3224         // write the obj file
3225         FS_WriteFile(filename, outbuffer, outbufferpos);
3226
3227         // clean up
3228         Z_Free(outbuffer);
3229         Z_Free(texturenames);
3230
3231         // print some stats
3232         Con_Printf("Wrote %s (%i bytes, %i vertices, %i faces, %i surfaces with %i distinct textures)\n", filename, (int)outbufferpos, countvertices, countfaces, countsurfaces, counttextures);
3233 }
3234
3235 static void Mod_Decompile_SMD(dp_model_t *model, const char *filename, int firstpose, int numposes, qboolean writetriangles)
3236 {
3237         int countnodes = 0, counttriangles = 0, countframes = 0;
3238         int surfaceindex;
3239         int triangleindex;
3240         int transformindex;
3241         int poseindex;
3242         int cornerindex;
3243         const int *e;
3244         size_t l;
3245         size_t outbufferpos = 0;
3246         size_t outbuffermax = 0x100000;
3247         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3248         const msurface_t *surface;
3249         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "version 1\nnodes\n");
3250         if (l > 0)
3251                 outbufferpos += l;
3252         for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3253         {
3254                 if (outbufferpos >= outbuffermax >> 1)
3255                 {
3256                         outbuffermax *= 2;
3257                         oldbuffer = outbuffer;
3258                         outbuffer = (char *) Z_Malloc(outbuffermax);
3259                         memcpy(outbuffer, oldbuffer, outbufferpos);
3260                         Z_Free(oldbuffer);
3261                 }
3262                 countnodes++;
3263                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i \"%s\" %3i\n", transformindex, model->data_bones[transformindex].name, model->data_bones[transformindex].parent);
3264                 if (l > 0)
3265                         outbufferpos += l;
3266         }
3267         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\nskeleton\n");
3268         if (l > 0)
3269                 outbufferpos += l;
3270         for (poseindex = 0;poseindex < numposes;poseindex++)
3271         {
3272                 countframes++;
3273                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "time %i\n", poseindex);
3274                 if (l > 0)
3275                         outbufferpos += l;
3276                 for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3277                 {
3278                         float angles[3];
3279                         float mtest[4][3];
3280                         matrix4x4_t posematrix;
3281                         if (outbufferpos >= outbuffermax >> 1)
3282                         {
3283                                 outbuffermax *= 2;
3284                                 oldbuffer = outbuffer;
3285                                 outbuffer = (char *) Z_Malloc(outbuffermax);
3286                                 memcpy(outbuffer, oldbuffer, outbufferpos);
3287                                 Z_Free(oldbuffer);
3288                         }
3289
3290                         // strangely the smd angles are for a transposed matrix, so we
3291                         // have to generate a transposed matrix, then convert that...
3292                         Matrix4x4_FromBonePose7s(&posematrix, model->num_posescale, model->data_poses7s + 7*(model->num_bones * poseindex + transformindex));
3293                         Matrix4x4_ToArray12FloatGL(&posematrix, mtest[0]);
3294                         AnglesFromVectors(angles, mtest[0], mtest[2], false);
3295                         if (angles[0] >= 180) angles[0] -= 360;
3296                         if (angles[1] >= 180) angles[1] -= 360;
3297                         if (angles[2] >= 180) angles[2] -= 360;
3298
3299 #if 0
3300 {
3301                         float a = DEG2RAD(angles[ROLL]);
3302                         float b = DEG2RAD(angles[PITCH]);
3303                         float c = DEG2RAD(angles[YAW]);
3304                         float cy, sy, cp, sp, cr, sr;
3305                         float test[4][3];
3306                         // smd matrix construction, for comparing
3307                         sy = sin(c);
3308                         cy = cos(c);
3309                         sp = sin(b);
3310                         cp = cos(b);
3311                         sr = sin(a);
3312                         cr = cos(a);
3313
3314                         test[0][0] = cp*cy;
3315                         test[0][1] = cp*sy;
3316                         test[0][2] = -sp;
3317                         test[1][0] = sr*sp*cy+cr*-sy;
3318                         test[1][1] = sr*sp*sy+cr*cy;
3319                         test[1][2] = sr*cp;
3320                         test[2][0] = (cr*sp*cy+-sr*-sy);
3321                         test[2][1] = (cr*sp*sy+-sr*cy);
3322                         test[2][2] = cr*cp;
3323                         test[3][0] = pose[9];
3324                         test[3][1] = pose[10];
3325                         test[3][2] = pose[11];
3326 }
3327 #endif
3328                         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]));
3329                         if (l > 0)
3330                                 outbufferpos += l;
3331                 }
3332         }
3333         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3334         if (l > 0)
3335                 outbufferpos += l;
3336         if (writetriangles)
3337         {
3338                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "triangles\n");
3339                 if (l > 0)
3340                         outbufferpos += l;
3341                 for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3342                 {
3343                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3344                         {
3345                                 counttriangles++;
3346                                 if (outbufferpos >= outbuffermax >> 1)
3347                                 {
3348                                         outbuffermax *= 2;
3349                                         oldbuffer = outbuffer;
3350                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3351                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3352                                         Z_Free(oldbuffer);
3353                                 }
3354                                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%s\n", surface->texture && surface->texture->name[0] ? surface->texture->name : "default.bmp");
3355                                 if (l > 0)
3356                                         outbufferpos += l;
3357                                 for (cornerindex = 0;cornerindex < 3;cornerindex++)
3358                                 {
3359                                         const int index = e[2-cornerindex];
3360                                         const float *v = model->surfmesh.data_vertex3f + index * 3;
3361                                         const float *vn = model->surfmesh.data_normal3f + index * 3;
3362                                         const float *vt = model->surfmesh.data_texcoordtexture2f + index * 2;
3363                                         const int b = model->surfmesh.blends[index];
3364                                         if (b < model->num_bones)
3365                                                 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]);
3366                                         else
3367                                         {
3368                                                 const blendweights_t *w = model->surfmesh.data_blendweights + b - model->num_bones;
3369                                                 const unsigned char *wi = w->index;
3370                                                 const unsigned char *wf = w->influence;
3371                                             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);
3372                                                 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);
3373                                                 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);
3374                                                 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]);
3375                                         }
3376                                         if (l > 0)
3377                                                 outbufferpos += l;
3378                                 }
3379                         }
3380                 }
3381                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3382                 if (l > 0)
3383                         outbufferpos += l;
3384         }
3385
3386         FS_WriteFile(filename, outbuffer, outbufferpos);
3387         Z_Free(outbuffer);
3388
3389         Con_Printf("Wrote %s (%i bytes, %i nodes, %i frames, %i triangles)\n", filename, (int)outbufferpos, countnodes, countframes, counttriangles);
3390 }
3391
3392 /*
3393 ================
3394 Mod_Decompile_f
3395
3396 decompiles a model to editable files
3397 ================
3398 */
3399 static void Mod_Decompile_f(void)
3400 {
3401         int i, j, k, l, first, count;
3402         dp_model_t *mod;
3403         char inname[MAX_QPATH];
3404         char outname[MAX_QPATH];
3405         char mtlname[MAX_QPATH];
3406         char basename[MAX_QPATH];
3407         char animname[MAX_QPATH];
3408         char animname2[MAX_QPATH];
3409         char zymtextbuffer[16384];
3410         char dpmtextbuffer[16384];
3411         char framegroupstextbuffer[16384];
3412         int zymtextsize = 0;
3413         int dpmtextsize = 0;
3414         int framegroupstextsize = 0;
3415         char vabuf[1024];
3416
3417         if (Cmd_Argc() != 2)
3418         {
3419                 Con_Print("usage: modeldecompile <filename>\n");
3420                 return;
3421         }
3422
3423         strlcpy(inname, Cmd_Argv(1), sizeof(inname));
3424         FS_StripExtension(inname, basename, sizeof(basename));
3425
3426         mod = Mod_ForName(inname, false, true, inname[0] == '*' ? cl.model_name[1] : NULL);
3427         if (!mod)
3428         {
3429                 Con_Print("No such model\n");
3430                 return;
3431         }
3432         if (mod->brush.submodel)
3433         {
3434                 // if we're decompiling a submodel, be sure to give it a proper name based on its parent
3435                 FS_StripExtension(cl.model_name[1], outname, sizeof(outname));
3436                 dpsnprintf(basename, sizeof(basename), "%s/%s", outname, mod->name);
3437                 outname[0] = 0;
3438         }
3439         if (!mod->surfmesh.num_triangles)
3440         {
3441                 Con_Print("Empty model (or sprite)\n");
3442                 return;
3443         }
3444
3445         // export OBJ if possible (not on sprites)
3446         if (mod->surfmesh.num_triangles)
3447         {
3448                 dpsnprintf(outname, sizeof(outname), "%s_decompiled.obj", basename);
3449                 dpsnprintf(mtlname, sizeof(mtlname), "%s_decompiled.mtl", basename);
3450                 Mod_Decompile_OBJ(mod, outname, mtlname, inname);
3451         }
3452
3453         // export SMD if possible (only for skeletal models)
3454         if (mod->surfmesh.num_triangles && mod->num_bones)
3455         {
3456                 dpsnprintf(outname, sizeof(outname), "%s_decompiled/ref1.smd", basename);
3457                 Mod_Decompile_SMD(mod, outname, 0, 1, true);
3458                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "output out.zym\nscale 1\norigin 0 0 0\nmesh ref1.smd\n");
3459                 if (l > 0) zymtextsize += l;
3460                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "outputdir .\nmodel out\nscale 1\norigin 0 0 0\nscene ref1.smd\n");
3461                 if (l > 0) dpmtextsize += l;
3462                 for (i = 0;i < mod->numframes;i = j)
3463                 {
3464                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3465                         first = mod->animscenes[i].firstframe;
3466                         if (mod->animscenes[i].framecount > 1)
3467                         {
3468                                 // framegroup anim
3469                                 count = mod->animscenes[i].framecount;
3470                                 j = i + 1;
3471                         }
3472                         else
3473                         {
3474                                 // individual frame
3475                                 // check for additional frames with same name
3476                                 for (l = 0, k = (int)strlen(animname);animname[l];l++)
3477                                         if(animname[l] < '0' || animname[l] > '9')
3478                                                 k = l + 1;
3479                                 if(k > 0 && animname[k-1] == '_')
3480                                         --k;
3481                                 animname[k] = 0;
3482                                 count = mod->num_poses - first;
3483                                 for (j = i + 1;j < mod->numframes;j++)
3484                                 {
3485                                         strlcpy(animname2, mod->animscenes[j].name, sizeof(animname2));
3486                                         for (l = 0, k = (int)strlen(animname2);animname2[l];l++)
3487                                                 if(animname2[l] < '0' || animname2[l] > '9')
3488                                                         k = l + 1;
3489                                         if(k > 0 && animname[k-1] == '_')
3490                                                 --k;
3491                                         animname2[k] = 0;
3492                                         if (strcmp(animname2, animname) || mod->animscenes[j].framecount > 1)
3493                                         {
3494                                                 count = mod->animscenes[j].firstframe - first;
3495                                                 break;
3496                                         }
3497                                 }
3498                                 // if it's only one frame, use the original frame name
3499                                 if (j == i + 1)
3500                                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3501
3502                         }
3503                         dpsnprintf(outname, sizeof(outname), "%s_decompiled/%s.smd", basename, animname);
3504                         Mod_Decompile_SMD(mod, outname, first, count, false);
3505                         if (zymtextsize < (int)sizeof(zymtextbuffer) - 100)
3506                         {
3507                                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3508                                 if (l > 0) zymtextsize += l;
3509                         }
3510                         if (dpmtextsize < (int)sizeof(dpmtextbuffer) - 100)
3511                         {
3512                                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3513                                 if (l > 0) dpmtextsize += l;
3514                         }
3515                         if (framegroupstextsize < (int)sizeof(framegroupstextbuffer) - 100)
3516                         {
3517                                 l = dpsnprintf(framegroupstextbuffer + framegroupstextsize, sizeof(framegroupstextbuffer) - framegroupstextsize, "%d %d %f %d // %s\n", first, count, mod->animscenes[i].framerate, mod->animscenes[i].loop, animname);
3518                                 if (l > 0) framegroupstextsize += l;
3519                         }
3520                 }
3521                 if (zymtextsize)
3522                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_zym.txt", basename), zymtextbuffer, (fs_offset_t)zymtextsize);
3523                 if (dpmtextsize)
3524                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_dpm.txt", basename), dpmtextbuffer, (fs_offset_t)dpmtextsize);
3525                 if (framegroupstextsize)
3526                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled.framegroups", basename), framegroupstextbuffer, (fs_offset_t)framegroupstextsize);
3527         }
3528 }
3529
3530 void Mod_AllocLightmap_Init(mod_alloclightmap_state_t *state, mempool_t *mempool, int width, int height)
3531 {
3532         int y;
3533         memset(state, 0, sizeof(*state));
3534         state->width = width;
3535         state->height = height;
3536         state->currentY = 0;
3537         state->rows = (mod_alloclightmap_row_t *)Mem_Alloc(mempool, state->height * sizeof(*state->rows));
3538         for (y = 0;y < state->height;y++)
3539         {
3540                 state->rows[y].currentX = 0;
3541                 state->rows[y].rowY = -1;
3542         }
3543 }
3544
3545 void Mod_AllocLightmap_Reset(mod_alloclightmap_state_t *state)
3546 {
3547         int y;
3548         state->currentY = 0;
3549         for (y = 0;y < state->height;y++)
3550         {
3551                 state->rows[y].currentX = 0;
3552                 state->rows[y].rowY = -1;
3553         }
3554 }
3555
3556 void Mod_AllocLightmap_Free(mod_alloclightmap_state_t *state)
3557 {
3558         if (state->rows)
3559                 Mem_Free(state->rows);
3560         memset(state, 0, sizeof(*state));
3561 }
3562
3563 qboolean Mod_AllocLightmap_Block(mod_alloclightmap_state_t *state, int blockwidth, int blockheight, int *outx, int *outy)
3564 {
3565         mod_alloclightmap_row_t *row;
3566         int y;
3567
3568         row = state->rows + blockheight;
3569         if ((row->rowY < 0) || (row->currentX + blockwidth > state->width))
3570         {
3571                 if (state->currentY + blockheight <= state->height)
3572                 {
3573                         // use the current allocation position
3574                         row->rowY = state->currentY;
3575                         row->currentX = 0;
3576                         state->currentY += blockheight;
3577                 }
3578                 else
3579                 {
3580                         // find another position
3581                         for (y = blockheight;y < state->height;y++)
3582                         {
3583                                 if ((state->rows[y].rowY >= 0) && (state->rows[y].currentX + blockwidth <= state->width))
3584                                 {
3585                                         row = state->rows + y;
3586                                         break;
3587                                 }
3588                         }
3589                         if (y == state->height)
3590                                 return false;
3591                 }
3592         }
3593         *outy = row->rowY;
3594         *outx = row->currentX;
3595         row->currentX += blockwidth;
3596
3597         return true;
3598 }
3599
3600 typedef struct lightmapsample_s
3601 {
3602         float pos[3];
3603         float sh1[4][3];
3604         float *vertex_color;
3605         unsigned char *lm_bgr;
3606         unsigned char *lm_dir;
3607 }
3608 lightmapsample_t;
3609
3610 typedef struct lightmapvertex_s
3611 {
3612         int index;
3613         float pos[3];
3614         float normal[3];
3615         float texcoordbase[2];
3616         float texcoordlightmap[2];
3617         float lightcolor[4];
3618 }
3619 lightmapvertex_t;
3620
3621 typedef struct lightmaptriangle_s
3622 {
3623         int triangleindex;
3624         int surfaceindex;
3625         int lightmapindex;
3626         int axis;
3627         int lmoffset[2];
3628         int lmsize[2];
3629         // 2D modelspace coordinates of min corner
3630         // snapped to lightmap grid but not in grid coordinates
3631         float lmbase[2];
3632         // 2D modelspace to lightmap coordinate scale
3633         float lmscale[2];
3634         float vertex[3][3];
3635         float mins[3];
3636         float maxs[3];
3637 }
3638 lightmaptriangle_t;
3639
3640 typedef struct lightmaplight_s
3641 {
3642         float origin[3];
3643         float radius;
3644         float iradius;
3645         float radius2;
3646         float color[3];
3647         svbsp_t svbsp;
3648 }
3649 lightmaplight_t;
3650
3651 lightmaptriangle_t *mod_generatelightmaps_lightmaptriangles;
3652
3653 #define MAX_LIGHTMAPSAMPLES 64
3654 static int mod_generatelightmaps_numoffsets[3];
3655 static float mod_generatelightmaps_offsets[3][MAX_LIGHTMAPSAMPLES][3];
3656
3657 static int mod_generatelightmaps_numlights;
3658 static lightmaplight_t *mod_generatelightmaps_lightinfo;
3659
3660 extern cvar_t r_shadow_lightattenuationdividebias;
3661 extern cvar_t r_shadow_lightattenuationlinearscale;
3662
3663 static void Mod_GenerateLightmaps_LightPoint(dp_model_t *model, const vec3_t pos, vec3_t ambient, vec3_t diffuse, vec3_t lightdir)
3664 {
3665         int i;
3666         int index;
3667         int result;
3668         float relativepoint[3];
3669         float color[3];
3670         float dir[3];
3671         float dist;
3672         float dist2;
3673         float intensity;
3674         float sample[5*3];
3675         float lightorigin[3];
3676         float lightradius;
3677         float lightradius2;
3678         float lightiradius;
3679         float lightcolor[3];
3680         trace_t trace;
3681         for (i = 0;i < 5*3;i++)
3682                 sample[i] = 0.0f;
3683         for (index = 0;;index++)
3684         {
3685                 result = R_Shadow_GetRTLightInfo(index, lightorigin, &lightradius, lightcolor);
3686                 if (result < 0)
3687                         break;
3688                 if (result == 0)
3689                         continue;
3690                 lightradius2 = lightradius * lightradius;
3691                 VectorSubtract(lightorigin, pos, relativepoint);
3692                 dist2 = VectorLength2(relativepoint);
3693                 if (dist2 >= lightradius2)
3694                         continue;
3695                 lightiradius = 1.0f / lightradius;
3696                 dist = sqrt(dist2) * lightiradius;
3697                 intensity = (1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist);
3698                 if (intensity <= 0.0f)
3699                         continue;
3700                 if (model && model->TraceLine)
3701                 {
3702                         model->TraceLine(model, NULL, NULL, &trace, pos, lightorigin, SUPERCONTENTS_SOLID, 0, MATERIALFLAGMASK_TRANSLUCENT | MATERIALFLAG_NOSHADOW);
3703                         if (trace.fraction < 1)
3704                                 continue;
3705                 }
3706                 // scale down intensity to add to both ambient and diffuse
3707                 //intensity *= 0.5f;
3708                 VectorNormalize(relativepoint);
3709                 VectorScale(lightcolor, intensity, color);
3710                 VectorMA(sample    , 0.5f            , color, sample    );
3711                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3712                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3713                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3714                 // calculate a weighted average light direction as well
3715                 intensity *= VectorLength(color);
3716                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3717         }
3718         // calculate the direction we'll use to reduce the sample to a directional light source
3719         VectorCopy(sample + 12, dir);
3720         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3721         VectorNormalize(dir);
3722         // extract the diffuse color along the chosen direction and scale it
3723         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]);
3724         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]);
3725         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]);
3726         // subtract some of diffuse from ambient
3727         VectorMA(sample, -0.333f, diffuse, ambient);
3728         // store the normalized lightdir
3729         VectorCopy(dir, lightdir);
3730 }
3731
3732 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(const dp_model_t *model, svbsp_t *svbsp, const float *mins, const float *maxs)
3733 {
3734         int surfaceindex;
3735         int triangleindex;
3736         const msurface_t *surface;
3737         const float *vertex3f = model->surfmesh.data_vertex3f;
3738         const int *element3i = model->surfmesh.data_element3i;
3739         const int *e;
3740         float v2[3][3];
3741         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->nummodelsurfaces;surfaceindex++, surface++)
3742         {
3743                 if (!BoxesOverlap(surface->mins, surface->maxs, mins, maxs))
3744                         continue;
3745                 if (surface->texture->basematerialflags & MATERIALFLAG_NOSHADOW)
3746                         continue;
3747                 for (triangleindex = 0, e = element3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3748                 {
3749                         VectorCopy(vertex3f + 3*e[0], v2[0]);
3750                         VectorCopy(vertex3f + 3*e[1], v2[1]);
3751                         VectorCopy(vertex3f + 3*e[2], v2[2]);
3752                         SVBSP_AddPolygon(svbsp, 3, v2[0], true, NULL, NULL, 0);
3753                 }
3754         }
3755 }
3756
3757 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(dp_model_t *model, lightmaplight_t *lightinfo)
3758 {
3759         int maxnodes = 1<<14;
3760         svbsp_node_t *nodes;
3761         float origin[3];
3762         float mins[3];
3763         float maxs[3];
3764         svbsp_t svbsp;
3765         VectorSet(mins, lightinfo->origin[0] - lightinfo->radius, lightinfo->origin[1] - lightinfo->radius, lightinfo->origin[2] - lightinfo->radius);
3766         VectorSet(maxs, lightinfo->origin[0] + lightinfo->radius, lightinfo->origin[1] + lightinfo->radius, lightinfo->origin[2] + lightinfo->radius);
3767         VectorCopy(lightinfo->origin, origin);
3768         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3769         for (;;)
3770         {
3771                 SVBSP_Init(&svbsp, origin, maxnodes, nodes);
3772                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(model, &svbsp, mins, maxs);
3773                 if (svbsp.ranoutofnodes)
3774                 {
3775                         maxnodes *= 16;
3776                         if (maxnodes > 1<<22)
3777                         {
3778                                 Mem_Free(nodes);
3779                                 return;
3780                         }
3781                         Mem_Free(nodes);
3782                         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3783                 }
3784                 else
3785                         break;
3786         }
3787         if (svbsp.numnodes > 0)
3788         {
3789                 svbsp.nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, svbsp.numnodes * sizeof(*nodes));
3790                 memcpy(svbsp.nodes, nodes, svbsp.numnodes * sizeof(*nodes));
3791                 lightinfo->svbsp = svbsp;
3792         }
3793         Mem_Free(nodes);
3794 }
3795
3796 static void Mod_GenerateLightmaps_CreateLights(dp_model_t *model)
3797 {
3798         int index;
3799         int result;
3800         lightmaplight_t *lightinfo;
3801         float origin[3];
3802         float radius;
3803         float color[3];
3804         mod_generatelightmaps_numlights = 0;
3805         for (index = 0;;index++)
3806         {
3807                 result = R_Shadow_GetRTLightInfo(index, origin, &radius, color);
3808                 if (result < 0)
3809                         break;
3810                 if (result > 0)
3811                         mod_generatelightmaps_numlights++;
3812         }
3813         if (mod_generatelightmaps_numlights > 0)
3814         {
3815                 mod_generatelightmaps_lightinfo = (lightmaplight_t *)Mem_Alloc(tempmempool, mod_generatelightmaps_numlights * sizeof(*mod_generatelightmaps_lightinfo));
3816                 lightinfo = mod_generatelightmaps_lightinfo;
3817                 for (index = 0;;index++)
3818                 {
3819                         result = R_Shadow_GetRTLightInfo(index, lightinfo->origin, &lightinfo->radius, lightinfo->color);
3820                         if (result < 0)
3821                                 break;
3822                         if (result > 0)
3823                                 lightinfo++;
3824                 }
3825         }
3826         for (index = 0, lightinfo = mod_generatelightmaps_lightinfo;index < mod_generatelightmaps_numlights;index++, lightinfo++)
3827         {
3828                 lightinfo->iradius = 1.0f / lightinfo->radius;
3829                 lightinfo->radius2 = lightinfo->radius * lightinfo->radius;
3830                 // TODO: compute svbsp
3831                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(model, lightinfo);
3832         }
3833 }
3834
3835 static void Mod_GenerateLightmaps_DestroyLights(dp_model_t *model)
3836 {
3837         int i;
3838         if (mod_generatelightmaps_lightinfo)
3839         {
3840                 for (i = 0;i < mod_generatelightmaps_numlights;i++)
3841                         if (mod_generatelightmaps_lightinfo[i].svbsp.nodes)
3842                                 Mem_Free(mod_generatelightmaps_lightinfo[i].svbsp.nodes);
3843                 Mem_Free(mod_generatelightmaps_lightinfo);
3844         }
3845         mod_generatelightmaps_lightinfo = NULL;
3846         mod_generatelightmaps_numlights = 0;
3847 }
3848
3849 static qboolean Mod_GenerateLightmaps_SamplePoint_SVBSP(const svbsp_t *svbsp, const float *pos)
3850 {
3851         const svbsp_node_t *node;
3852         const svbsp_node_t *nodes = svbsp->nodes;
3853         int num = 0;
3854         while (num >= 0)
3855         {
3856                 node = nodes + num;
3857                 num = node->children[DotProduct(node->plane, pos) < node->plane[3]];
3858         }
3859         return num == -1; // true if empty, false if solid (shadowed)
3860 }
3861
3862 static void Mod_GenerateLightmaps_SamplePoint(const float *pos, const float *normal, float *sample, int numoffsets, const float *offsets)
3863 {
3864         int i;
3865         float relativepoint[3];
3866         float color[3];
3867         float offsetpos[3];
3868         float dist;
3869         float dist2;
3870         float intensity;
3871         int offsetindex;
3872         int hits;
3873         int tests;
3874         const lightmaplight_t *lightinfo;
3875         trace_t trace;
3876         for (i = 0;i < 5*3;i++)
3877                 sample[i] = 0.0f;
3878         for (i = 0, lightinfo = mod_generatelightmaps_lightinfo;i < mod_generatelightmaps_numlights;i++, lightinfo++)
3879         {
3880                 //R_SampleRTLights(pos, sample, numoffsets, offsets);
3881                 VectorSubtract(lightinfo->origin, pos, relativepoint);
3882                 // don't accept light from behind a surface, it causes bad shading
3883                 if (normal && DotProduct(relativepoint, normal) <= 0)
3884                         continue;
3885                 dist2 = VectorLength2(relativepoint);
3886                 if (dist2 >= lightinfo->radius2)
3887                         continue;
3888                 dist = sqrt(dist2) * lightinfo->iradius;
3889                 intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
3890                 if (intensity <= 0)
3891                         continue;
3892                 if (cl.worldmodel && cl.worldmodel->TraceLine && numoffsets > 0)
3893                 {
3894                         hits = 0;
3895                         tests = 1;
3896                         if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, pos))
3897                                 hits++;
3898                         for (offsetindex = 1;offsetindex < numoffsets;offsetindex++)
3899                         {
3900                                 VectorAdd(pos, offsets + 3*offsetindex, offsetpos);
3901                                 if (!normal)
3902                                 {
3903                                         // for light grid we'd better check visibility of the offset point
3904                                         cl.worldmodel->TraceLine(cl.worldmodel, NULL, NULL, &trace, pos, offsetpos, SUPERCONTENTS_SOLID, 0, MATERIALFLAGMASK_TRANSLUCENT | MATERIALFLAG_NOSHADOW);
3905                                         if (trace.fraction < 1)
3906                                                 VectorLerp(pos, trace.fraction, offsetpos, offsetpos);
3907                                 }
3908                                 tests++;
3909                                 if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, offsetpos))
3910                                         hits++;
3911                         }
3912                         if (!hits)
3913                                 continue;
3914                         // scale intensity according to how many rays succeeded
3915                         // we know one test is valid, half of the rest will fail...
3916                         //if (normal && tests > 1)
3917                         //      intensity *= (tests - 1.0f) / tests;
3918                         intensity *= (float)hits / tests;
3919                 }
3920                 // scale down intensity to add to both ambient and diffuse
3921                 //intensity *= 0.5f;
3922                 VectorNormalize(relativepoint);
3923                 VectorScale(lightinfo->color, intensity, color);
3924                 VectorMA(sample    , 0.5f            , color, sample    );
3925                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3926                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3927                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3928                 // calculate a weighted average light direction as well
3929                 intensity *= VectorLength(color);
3930                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3931         }
3932 }
3933
3934 static void Mod_GenerateLightmaps_LightmapSample(const float *pos, const float *normal, unsigned char *lm_bgr, unsigned char *lm_dir)
3935 {
3936         float sample[5*3];
3937         float color[3];
3938         float dir[3];
3939         float f;
3940         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[0], mod_generatelightmaps_offsets[0][0]);
3941         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3942         VectorCopy(sample + 12, dir);
3943         VectorNormalize(dir);
3944         //VectorAdd(dir, normal, dir);
3945         //VectorNormalize(dir);
3946         f = DotProduct(dir, normal);
3947         f = max(0, f) * 255.0f;
3948         VectorScale(sample, f, color);
3949         //VectorCopy(normal, dir);
3950         VectorSet(dir, (dir[0]+1.0f)*127.5f, (dir[1]+1.0f)*127.5f, (dir[2]+1.0f)*127.5f);
3951         lm_bgr[0] = (unsigned char)bound(0.0f, color[2], 255.0f);
3952         lm_bgr[1] = (unsigned char)bound(0.0f, color[1], 255.0f);
3953         lm_bgr[2] = (unsigned char)bound(0.0f, color[0], 255.0f);
3954         lm_bgr[3] = 255;
3955         lm_dir[0] = (unsigned char)dir[2];
3956         lm_dir[1] = (unsigned char)dir[1];
3957         lm_dir[2] = (unsigned char)dir[0];
3958         lm_dir[3] = 255;
3959 }
3960
3961 static void Mod_GenerateLightmaps_VertexSample(const float *pos, const float *normal, float *vertex_color)
3962 {
3963         float sample[5*3];
3964         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[1], mod_generatelightmaps_offsets[1][0]);
3965         VectorCopy(sample, vertex_color);
3966 }
3967
3968 static void Mod_GenerateLightmaps_GridSample(const float *pos, q3dlightgrid_t *s)
3969 {
3970         float sample[5*3];
3971         float ambient[3];
3972         float diffuse[3];
3973         float dir[3];
3974         Mod_GenerateLightmaps_SamplePoint(pos, NULL, sample, mod_generatelightmaps_numoffsets[2], mod_generatelightmaps_offsets[2][0]);
3975         // calculate the direction we'll use to reduce the sample to a directional light source
3976         VectorCopy(sample + 12, dir);
3977         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3978         VectorNormalize(dir);
3979         // extract the diffuse color along the chosen direction and scale it
3980         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]) * 127.5f;
3981         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]) * 127.5f;
3982         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]) * 127.5f;
3983         // scale the ambient from 0-2 to 0-255 and subtract some of diffuse
3984         VectorScale(sample, 127.5f, ambient);
3985         VectorMA(ambient, -0.333f, diffuse, ambient);
3986         // encode to the grid format
3987         s->ambientrgb[0] = (unsigned char)bound(0.0f, ambient[0], 255.0f);
3988         s->ambientrgb[1] = (unsigned char)bound(0.0f, ambient[1], 255.0f);
3989         s->ambientrgb[2] = (unsigned char)bound(0.0f, ambient[2], 255.0f);
3990         s->diffusergb[0] = (unsigned char)bound(0.0f, diffuse[0], 255.0f);
3991         s->diffusergb[1] = (unsigned char)bound(0.0f, diffuse[1], 255.0f);
3992         s->diffusergb[2] = (unsigned char)bound(0.0f, diffuse[2], 255.0f);
3993         if (dir[2] >= 0.99f) {s->diffusepitch = 0;s->diffuseyaw = 0;}
3994         else if (dir[2] <= -0.99f) {s->diffusepitch = 128;s->diffuseyaw = 0;}
3995         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));}
3996 }
3997
3998 static void Mod_GenerateLightmaps_InitSampleOffsets(dp_model_t *model)
3999 {
4000         float radius[3];
4001         float temp[3];
4002         int i, j;
4003         memset(mod_generatelightmaps_offsets, 0, sizeof(mod_generatelightmaps_offsets));
4004         mod_generatelightmaps_numoffsets[0] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_lightmapsamples.integer);
4005         mod_generatelightmaps_numoffsets[1] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_vertexsamples.integer);
4006         mod_generatelightmaps_numoffsets[2] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_gridsamples.integer);
4007         radius[0] = mod_generatelightmaps_lightmapradius.value;
4008         radius[1] = mod_generatelightmaps_vertexradius.value;
4009         radius[2] = mod_generatelightmaps_gridradius.value;
4010         for (i = 0;i < 3;i++)
4011         {
4012                 for (j = 1;j < mod_generatelightmaps_numoffsets[i];j++)
4013                 {
4014                         VectorRandom(temp);
4015                         VectorScale(temp, radius[i], mod_generatelightmaps_offsets[i][j]);
4016                 }
4017         }
4018 }
4019
4020 static void Mod_GenerateLightmaps_DestroyLightmaps(dp_model_t *model)
4021 {
4022         msurface_t *surface;
4023         int surfaceindex;
4024         int i;
4025         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4026         {
4027                 surface = model->data_surfaces + surfaceindex;
4028                 surface->lightmaptexture = NULL;
4029                 surface->deluxemaptexture = NULL;
4030         }
4031         if (model->brushq3.data_lightmaps)
4032         {
4033                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
4034                         if (model->brushq3.data_lightmaps[i])
4035                                 R_FreeTexture(model->brushq3.data_lightmaps[i]);
4036                 Mem_Free(model->brushq3.data_lightmaps);
4037                 model->brushq3.data_lightmaps = NULL;
4038         }
4039         if (model->brushq3.data_deluxemaps)
4040         {
4041                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
4042                         if (model->brushq3.data_deluxemaps[i])
4043                                 R_FreeTexture(model->brushq3.data_deluxemaps[i]);
4044                 Mem_Free(model->brushq3.data_deluxemaps);
4045                 model->brushq3.data_deluxemaps = NULL;
4046         }
4047 }
4048
4049 static void Mod_GenerateLightmaps_UnweldTriangles(dp_model_t *model)
4050 {
4051         msurface_t *surface;
4052         int surfaceindex;
4053         int vertexindex;
4054         int outvertexindex;
4055         int i;
4056         const int *e;
4057         surfmesh_t oldsurfmesh;
4058         size_t size;
4059         unsigned char *data;
4060         oldsurfmesh = model->surfmesh;
4061         model->surfmesh.num_triangles = oldsurfmesh.num_triangles;
4062         model->surfmesh.num_vertices = oldsurfmesh.num_triangles * 3;
4063         size = 0;
4064         size += model->surfmesh.num_vertices * sizeof(float[3]);
4065         size += model->surfmesh.num_vertices * sizeof(float[3]);
4066         size += model->surfmesh.num_vertices * sizeof(float[3]);
4067         size += model->surfmesh.num_vertices * sizeof(float[3]);
4068         size += model->surfmesh.num_vertices * sizeof(float[2]);
4069         size += model->surfmesh.num_vertices * sizeof(float[2]);
4070         size += model->surfmesh.num_vertices * sizeof(float[4]);
4071         data = (unsigned char *)Mem_Alloc(model->mempool, size);
4072         model->surfmesh.data_vertex3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4073         model->surfmesh.data_normal3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4074         model->surfmesh.data_svector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4075         model->surfmesh.data_tvector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4076         model->surfmesh.data_texcoordtexture2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
4077         model->surfmesh.data_texcoordlightmap2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
4078         model->surfmesh.data_lightmapcolor4f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[4]);
4079         if (model->surfmesh.num_vertices > 65536)
4080                 model->surfmesh.data_element3s = NULL;
4081
4082         if (model->surfmesh.data_element3i_indexbuffer)
4083                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3i_indexbuffer);
4084         model->surfmesh.data_element3i_indexbuffer = NULL;
4085         if (model->surfmesh.data_element3s_indexbuffer)
4086                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3s_indexbuffer);
4087         model->surfmesh.data_element3s_indexbuffer = NULL;
4088         if (model->surfmesh.vbo_vertexbuffer)
4089                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vbo_vertexbuffer);
4090         model->surfmesh.vbo_vertexbuffer = 0;
4091
4092         // convert all triangles to unique vertex data
4093         outvertexindex = 0;
4094         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4095         {
4096                 surface = model->data_surfaces + surfaceindex;
4097                 surface->num_firstvertex = outvertexindex;
4098                 surface->num_vertices = surface->num_triangles*3;
4099                 e = oldsurfmesh.data_element3i + surface->num_firsttriangle*3;
4100                 for (i = 0;i < surface->num_triangles*3;i++)
4101                 {
4102                         vertexindex = e[i];
4103                         model->surfmesh.data_vertex3f[outvertexindex*3+0] = oldsurfmesh.data_vertex3f[vertexindex*3+0];
4104                         model->surfmesh.data_vertex3f[outvertexindex*3+1] = oldsurfmesh.data_vertex3f[vertexindex*3+1];
4105                         model->surfmesh.data_vertex3f[outvertexindex*3+2] = oldsurfmesh.data_vertex3f[vertexindex*3+2];
4106                         model->surfmesh.data_normal3f[outvertexindex*3+0] = oldsurfmesh.data_normal3f[vertexindex*3+0];
4107                         model->surfmesh.data_normal3f[outvertexindex*3+1] = oldsurfmesh.data_normal3f[vertexindex*3+1];
4108                         model->surfmesh.data_normal3f[outvertexindex*3+2] = oldsurfmesh.data_normal3f[vertexindex*3+2];
4109                         model->surfmesh.data_svector3f[outvertexindex*3+0] = oldsurfmesh.data_svector3f[vertexindex*3+0];
4110                         model->surfmesh.data_svector3f[outvertexindex*3+1] = oldsurfmesh.data_svector3f[vertexindex*3+1];
4111                         model->surfmesh.data_svector3f[outvertexindex*3+2] = oldsurfmesh.data_svector3f[vertexindex*3+2];
4112                         model->surfmesh.data_tvector3f[outvertexindex*3+0] = oldsurfmesh.data_tvector3f[vertexindex*3+0];
4113                         model->surfmesh.data_tvector3f[outvertexindex*3+1] = oldsurfmesh.data_tvector3f[vertexindex*3+1];
4114                         model->surfmesh.data_tvector3f[outvertexindex*3+2] = oldsurfmesh.data_tvector3f[vertexindex*3+2];
4115                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+0];
4116                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+1];
4117                         if (oldsurfmesh.data_texcoordlightmap2f)
4118                         {
4119                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+0];
4120                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+1];
4121                         }
4122                         if (oldsurfmesh.data_lightmapcolor4f)
4123                         {
4124                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+0] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+0];
4125                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+1] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+1];
4126                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+2] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+2];
4127                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+3] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+3];
4128                         }
4129                         else
4130                                 Vector4Set(model->surfmesh.data_lightmapcolor4f + 4*outvertexindex, 1, 1, 1, 1);
4131                         model->surfmesh.data_element3i[surface->num_firsttriangle*3+i] = outvertexindex;
4132                         outvertexindex++;
4133                 }
4134         }
4135         if (model->surfmesh.data_element3s)
4136                 for (i = 0;i < model->surfmesh.num_triangles*3;i++)
4137                         model->surfmesh.data_element3s[i] = model->surfmesh.data_element3i[i];
4138
4139         // find and update all submodels to use this new surfmesh data
4140         for (i = 0;i < model->brush.numsubmodels;i++)
4141                 model->brush.submodels[i]->surfmesh = model->surfmesh;
4142 }
4143
4144 static void Mod_GenerateLightmaps_CreateTriangleInformation(dp_model_t *model)
4145 {
4146         msurface_t *surface;
4147         int surfaceindex;
4148         int i;
4149         int axis;
4150         float normal[3];
4151         const int *e;
4152         lightmaptriangle_t *triangle;
4153         // generate lightmap triangle structs
4154         mod_generatelightmaps_lightmaptriangles = (lightmaptriangle_t *)Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4155         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4156         {
4157                 surface = model->data_surfaces + surfaceindex;
4158                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4159                 for (i = 0;i < surface->num_triangles;i++)
4160                 {
4161                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4162                         triangle->triangleindex = surface->num_firsttriangle+i;
4163                         triangle->surfaceindex = surfaceindex;
4164                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+0], triangle->vertex[0]);
4165                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+1], triangle->vertex[1]);
4166                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+2], triangle->vertex[2]);
4167                         // calculate bounds of triangle
4168                         triangle->mins[0] = min(triangle->vertex[0][0], min(triangle->vertex[1][0], triangle->vertex[2][0]));
4169                         triangle->mins[1] = min(triangle->vertex[0][1], min(triangle->vertex[1][1], triangle->vertex[2][1]));
4170                         triangle->mins[2] = min(triangle->vertex[0][2], min(triangle->vertex[1][2], triangle->vertex[2][2]));
4171                         triangle->maxs[0] = max(triangle->vertex[0][0], max(triangle->vertex[1][0], triangle->vertex[2][0]));
4172                         triangle->maxs[1] = max(triangle->vertex[0][1], max(triangle->vertex[1][1], triangle->vertex[2][1]));
4173                         triangle->maxs[2] = max(triangle->vertex[0][2], max(triangle->vertex[1][2], triangle->vertex[2][2]));
4174                         // pick an axial projection based on the triangle normal
4175                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], normal);
4176                         axis = 0;
4177                         if (fabs(normal[1]) > fabs(normal[axis]))
4178                                 axis = 1;
4179                         if (fabs(normal[2]) > fabs(normal[axis]))
4180                                 axis = 2;
4181                         triangle->axis = axis;
4182                 }
4183         }
4184 }
4185
4186 static void Mod_GenerateLightmaps_DestroyTriangleInformation(dp_model_t *model)
4187 {
4188         if (mod_generatelightmaps_lightmaptriangles)
4189                 Mem_Free(mod_generatelightmaps_lightmaptriangles);
4190         mod_generatelightmaps_lightmaptriangles = NULL;
4191 }
4192
4193 float lmaxis[3][3] = {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}};
4194
4195 static void Mod_GenerateLightmaps_CreateLightmaps(dp_model_t *model)
4196 {
4197         msurface_t *surface;
4198         int surfaceindex;
4199         int lightmapindex;
4200         int lightmapnumber;
4201         int i;
4202         int j;
4203         int k;
4204         int x;
4205         int y;
4206         int axis;
4207         int axis1;
4208         int axis2;
4209         int retry;
4210         int pixeloffset;
4211         float trianglenormal[3];
4212         float samplecenter[3];
4213         float samplenormal[3];
4214         float temp[3];
4215         float lmiscale[2];
4216         float slopex;
4217         float slopey;
4218         float slopebase;
4219         float lmscalepixels;
4220         float lmmins;
4221         float lmmaxs;
4222         float lm_basescalepixels;
4223         int lm_borderpixels;
4224         int lm_texturesize;
4225         //int lm_maxpixels;
4226         const int *e;
4227         lightmaptriangle_t *triangle;
4228         unsigned char *lightmappixels;
4229         unsigned char *deluxemappixels;
4230         mod_alloclightmap_state_t lmstate;
4231         char vabuf[1024];
4232
4233         // generate lightmap projection information for all triangles
4234         if (model->texturepool == NULL)
4235                 model->texturepool = R_AllocTexturePool();
4236         lm_basescalepixels = 1.0f / max(0.0001f, mod_generatelightmaps_unitspersample.value);
4237         lm_borderpixels = mod_generatelightmaps_borderpixels.integer;
4238         lm_texturesize = bound(lm_borderpixels*2+1, 64, (int)vid.maxtexturesize_2d);
4239         //lm_maxpixels = lm_texturesize-(lm_borderpixels*2+1);
4240         Mod_AllocLightmap_Init(&lmstate, loadmodel->mempool, lm_texturesize, lm_texturesize);
4241         lightmapnumber = 0;
4242         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4243         {
4244                 surface = model->data_surfaces + surfaceindex;
4245                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4246                 lmscalepixels = lm_basescalepixels;
4247                 for (retry = 0;retry < 30;retry++)
4248                 {
4249                         // after a couple failed attempts, degrade quality to make it fit
4250                         if (retry > 1)
4251                                 lmscalepixels *= 0.5f;
4252                         for (i = 0;i < surface->num_triangles;i++)
4253                         {
4254                                 triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4255                                 triangle->lightmapindex = lightmapnumber;
4256                                 // calculate lightmap bounds in 3D pixel coordinates, limit size,
4257                                 // pick two planar axes for projection
4258                                 // lightmap coordinates here are in pixels
4259                                 // lightmap projections are snapped to pixel grid explicitly, such
4260                                 // that two neighboring triangles sharing an edge and projection
4261                                 // axis will have identical sample spacing along their shared edge
4262                                 k = 0;
4263                                 for (j = 0;j < 3;j++)
4264                                 {
4265                                         if (j == triangle->axis)
4266                                                 continue;
4267                                         lmmins = floor(triangle->mins[j]*lmscalepixels)-lm_borderpixels;
4268                                         lmmaxs = floor(triangle->maxs[j]*lmscalepixels)+lm_borderpixels;
4269                                         triangle->lmsize[k] = (int)(lmmaxs-lmmins);
4270                                         triangle->lmbase[k] = lmmins/lmscalepixels;
4271                                         triangle->lmscale[k] = lmscalepixels;
4272                                         k++;
4273                                 }
4274                                 if (!Mod_AllocLightmap_Block(&lmstate, triangle->lmsize[0], triangle->lmsize[1], &triangle->lmoffset[0], &triangle->lmoffset[1]))
4275                                         break;
4276                         }
4277                         // if all fit in this texture, we're done with this surface
4278                         if (i == surface->num_triangles)
4279                                 break;
4280                         // if we haven't maxed out the lightmap size yet, we retry the
4281                         // entire surface batch...
4282                         if (lm_texturesize * 2 <= min(mod_generatelightmaps_texturesize.integer, (int)vid.maxtexturesize_2d))
4283                         {
4284                                 lm_texturesize *= 2;
4285                                 surfaceindex = -1;
4286                                 lightmapnumber = 0;
4287                                 Mod_AllocLightmap_Free(&lmstate);
4288                                 Mod_AllocLightmap_Init(&lmstate, loadmodel->mempool, lm_texturesize, lm_texturesize);
4289                                 break;
4290                         }
4291                         // if we have maxed out the lightmap size, and this triangle does
4292                         // not fit in the same texture as the rest of the surface, we have
4293                         // to retry the entire surface in a new texture (can only use one)
4294                         // with multiple retries, the lightmap quality degrades until it
4295                         // fits (or gives up)
4296                         if (surfaceindex > 0)
4297                                 lightmapnumber++;
4298                         Mod_AllocLightmap_Reset(&lmstate);
4299                 }
4300         }
4301         lightmapnumber++;
4302         Mod_AllocLightmap_Free(&lmstate);
4303
4304         // now put triangles together into lightmap textures, and do not allow
4305         // triangles of a surface to go into different textures (as that would
4306         // require rewriting the surface list)
4307         model->brushq3.deluxemapping_modelspace = true;
4308         model->brushq3.deluxemapping = true;
4309         model->brushq3.num_mergedlightmaps = lightmapnumber;
4310         model->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4311         model->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4312         lightmappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4313         deluxemappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4314         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4315         {
4316                 surface = model->data_surfaces + surfaceindex;
4317                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4318                 for (i = 0;i < surface->num_triangles;i++)
4319                 {
4320                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4321                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], trianglenormal);
4322                         VectorNormalize(trianglenormal);
4323                         VectorCopy(trianglenormal, samplenormal); // FIXME: this is supposed to be interpolated per pixel from vertices
4324                         axis = triangle->axis;
4325                         axis1 = axis == 0 ? 1 : 0;
4326                         axis2 = axis == 2 ? 1 : 2;
4327                         lmiscale[0] = 1.0f / triangle->lmscale[0];
4328                         lmiscale[1] = 1.0f / triangle->lmscale[1];
4329                         if (trianglenormal[axis] < 0)
4330                                 VectorNegate(trianglenormal, trianglenormal);
4331                         CrossProduct(lmaxis[axis2], trianglenormal, temp);slopex = temp[axis] / temp[axis1];
4332                         CrossProduct(lmaxis[axis1], trianglenormal, temp);slopey = temp[axis] / temp[axis2];
4333                         slopebase = triangle->vertex[0][axis] - triangle->vertex[0][axis1]*slopex - triangle->vertex[0][axis2]*slopey;
4334                         for (j = 0;j < 3;j++)
4335                         {
4336                                 float *t2f = model->surfmesh.data_texcoordlightmap2f + e[i*3+j]*2;
4337                                 t2f[0] = ((triangle->vertex[j][axis1] - triangle->lmbase[0]) * triangle->lmscale[0] + triangle->lmoffset[0]) / lm_texturesize;
4338                                 t2f[1] = ((triangle->vertex[j][axis2] - triangle->lmbase[1]) * triangle->lmscale[1] + triangle->lmoffset[1]) / lm_texturesize;
4339 #if 0
4340                                 samplecenter[axis1] = (t2f[0]*lm_texturesize-triangle->lmoffset[0])*lmiscale[0] + triangle->lmbase[0];
4341                                 samplecenter[axis2] = (t2f[1]*lm_texturesize-triangle->lmoffset[1])*lmiscale[1] + triangle->lmbase[1];
4342                                 samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4343                                 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]);
4344 #endif
4345                         }
4346
4347 #if 0
4348                         switch (axis)
4349                         {
4350                         default:
4351                         case 0:
4352                                 forward[0] = 0;
4353                                 forward[1] = 1.0f / triangle->lmscale[0];
4354                                 forward[2] = 0;
4355                                 left[0] = 0;
4356                                 left[1] = 0;
4357                                 left[2] = 1.0f / triangle->lmscale[1];
4358                                 up[0] = 1.0f;
4359                                 up[1] = 0;
4360                                 up[2] = 0;
4361                                 origin[0] = 0;
4362                                 origin[1] = triangle->lmbase[0];
4363                                 origin[2] = triangle->lmbase[1];
4364                                 break;
4365                         case 1:
4366                                 forward[0] = 1.0f / triangle->lmscale[0];
4367                                 forward[1] = 0;
4368                                 forward[2] = 0;
4369                                 left[0] = 0;
4370                                 left[1] = 0;
4371                                 left[2] = 1.0f / triangle->lmscale[1];
4372                                 up[0] = 0;
4373                                 up[1] = 1.0f;
4374                                 up[2] = 0;
4375                                 origin[0] = triangle->lmbase[0];
4376                                 origin[1] = 0;
4377                                 origin[2] = triangle->lmbase[1];
4378                                 break;
4379                         case 2:
4380                                 forward[0] = 1.0f / triangle->lmscale[0];
4381                                 forward[1] = 0;
4382                                 forward[2] = 0;
4383                                 left[0] = 0;
4384                                 left[1] = 1.0f / triangle->lmscale[1];
4385                                 left[2] = 0;
4386                                 up[0] = 0;
4387                                 up[1] = 0;
4388                                 up[2] = 1.0f;
4389                                 origin[0] = triangle->lmbase[0];
4390                                 origin[1] = triangle->lmbase[1];
4391                                 origin[2] = 0;
4392                                 break;
4393                         }
4394                         Matrix4x4_FromVectors(&backmatrix, forward, left, up, origin);
4395 #endif
4396 #define LM_DIST_EPSILON (1.0f / 32.0f)
4397                         for (y = 0;y < triangle->lmsize[1];y++)
4398                         {
4399                                 pixeloffset = ((triangle->lightmapindex * lm_texturesize + y + triangle->lmoffset[1]) * lm_texturesize + triangle->lmoffset[0]) * 4;
4400                                 for (x = 0;x < triangle->lmsize[0];x++, pixeloffset += 4)
4401                                 {
4402                                         samplecenter[axis1] = (x+0.5f)*lmiscale[0] + triangle->lmbase[0];
4403                                         samplecenter[axis2] = (y+0.5f)*lmiscale[1] + triangle->lmbase[1];
4404                                         samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4405                                         VectorMA(samplecenter, 0.125f, samplenormal, samplecenter);
4406                                         Mod_GenerateLightmaps_LightmapSample(samplecenter, samplenormal, lightmappixels + pixeloffset, deluxemappixels + pixeloffset);
4407                                 }
4408                         }
4409                 }
4410         }
4411
4412         for (lightmapindex = 0;lightmapindex < model->brushq3.num_mergedlightmaps;lightmapindex++)
4413         {
4414                 model->brushq3.data_lightmaps[lightmapindex] = R_LoadTexture2D(model->texturepool, va(vabuf, sizeof(vabuf), "lightmap%i", lightmapindex), lm_texturesize, lm_texturesize, lightmappixels + lightmapindex * lm_texturesize * lm_texturesize * 4, TEXTYPE_BGRA, TEXF_FORCELINEAR, -1, NULL);
4415                 model->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(model->texturepool, va(vabuf, sizeof(vabuf), "deluxemap%i", lightmapindex), lm_texturesize, lm_texturesize, deluxemappixels + lightmapindex * lm_texturesize * lm_texturesize * 4, TEXTYPE_BGRA, TEXF_FORCELINEAR, -1, NULL);
4416         }
4417
4418         if (lightmappixels)
4419                 Mem_Free(lightmappixels);
4420         if (deluxemappixels)
4421                 Mem_Free(deluxemappixels);
4422
4423         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4424         {
4425                 surface = model->data_surfaces + surfaceindex;
4426                 if (!surface->num_triangles)
4427                         continue;
4428                 lightmapindex = mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle].lightmapindex;
4429                 surface->lightmaptexture = model->brushq3.data_lightmaps[lightmapindex];
4430                 surface->deluxemaptexture = model->brushq3.data_deluxemaps[lightmapindex];
4431                 surface->lightmapinfo = NULL;
4432         }
4433
4434         model->brush.LightPoint = Mod_GenerateLightmaps_LightPoint;
4435         model->brushq1.lightdata = NULL;
4436         model->brushq1.lightmapupdateflags = NULL;
4437         model->brushq1.firstrender = false;
4438         model->brushq1.num_lightstyles = 0;
4439         model->brushq1.data_lightstyleinfo = NULL;
4440         for (i = 0;i < model->brush.numsubmodels;i++)
4441         {
4442                 model->brush.submodels[i]->brushq1.lightmapupdateflags = NULL;
4443                 model->brush.submodels[i]->brushq1.firstrender = false;
4444                 model->brush.submodels[i]->brushq1.num_lightstyles = 0;
4445                 model->brush.submodels[i]->brushq1.data_lightstyleinfo = NULL;
4446         }
4447 }
4448
4449 static void Mod_GenerateLightmaps_UpdateVertexColors(dp_model_t *model)
4450 {
4451         int i;
4452         for (i = 0;i < model->surfmesh.num_vertices;i++)
4453                 Mod_GenerateLightmaps_VertexSample(model->surfmesh.data_vertex3f + 3*i, model->surfmesh.data_normal3f + 3*i, model->surfmesh.data_lightmapcolor4f + 4*i);
4454 }
4455
4456 static void Mod_GenerateLightmaps_UpdateLightGrid(dp_model_t *model)
4457 {
4458         int x;
4459         int y;
4460         int z;
4461         int index = 0;
4462         float pos[3];
4463         for (z = 0;z < model->brushq3.num_lightgrid_isize[2];z++)
4464         {
4465                 pos[2] = (model->brushq3.num_lightgrid_imins[2] + z + 0.5f) * model->brushq3.num_lightgrid_cellsize[2];
4466                 for (y = 0;y < model->brushq3.num_lightgrid_isize[1];y++)
4467                 {
4468                         pos[1] = (model->brushq3.num_lightgrid_imins[1] + y + 0.5f) * model->brushq3.num_lightgrid_cellsize[1];
4469                         for (x = 0;x < model->brushq3.num_lightgrid_isize[0];x++, index++)
4470                         {
4471                                 pos[0] = (model->brushq3.num_lightgrid_imins[0] + x + 0.5f) * model->brushq3.num_lightgrid_cellsize[0];
4472                                 Mod_GenerateLightmaps_GridSample(pos, model->brushq3.data_lightgrid + index);
4473                         }
4474                 }
4475         }
4476 }
4477
4478 extern cvar_t mod_q3bsp_nolightmaps;
4479 static void Mod_GenerateLightmaps(dp_model_t *model)
4480 {
4481         //lightmaptriangle_t *lightmaptriangles = Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4482         dp_model_t *oldloadmodel = loadmodel;
4483         loadmodel = model;
4484
4485         Mod_GenerateLightmaps_InitSampleOffsets(model);
4486         Mod_GenerateLightmaps_DestroyLightmaps(model);
4487         Mod_GenerateLightmaps_UnweldTriangles(model);
4488         Mod_GenerateLightmaps_CreateTriangleInformation(model);
4489         Mod_GenerateLightmaps_CreateLights(model);
4490         if(!mod_q3bsp_nolightmaps.integer)
4491                 Mod_GenerateLightmaps_CreateLightmaps(model);
4492         Mod_GenerateLightmaps_UpdateVertexColors(model);
4493         Mod_GenerateLightmaps_UpdateLightGrid(model);
4494         Mod_GenerateLightmaps_DestroyLights(model);
4495         Mod_GenerateLightmaps_DestroyTriangleInformation(model);
4496
4497         loadmodel = oldloadmodel;
4498 }
4499
4500 static void Mod_GenerateLightmaps_f(void)
4501 {
4502         if (Cmd_Argc() != 1)
4503         {
4504                 Con_Printf("usage: mod_generatelightmaps\n");
4505                 return;
4506         }
4507         if (!cl.worldmodel)
4508         {
4509                 Con_Printf("no worldmodel loaded\n");
4510                 return;
4511         }
4512         Mod_GenerateLightmaps(cl.worldmodel);
4513 }
4514
4515 void Mod_Mesh_Create(dp_model_t *mod, const char *name)
4516 {
4517         memset(mod, 0, sizeof(*mod));
4518         strlcpy(mod->name, name, sizeof(mod->name));
4519         mod->mempool = Mem_AllocPool(name, 0, NULL);
4520         mod->texturepool = R_AllocTexturePool();
4521         mod->Draw = R_Q1BSP_Draw;
4522         mod->DrawDepth = R_Q1BSP_DrawDepth;
4523         mod->DrawDebug = R_Q1BSP_DrawDebug;
4524         mod->DrawPrepass = R_Q1BSP_DrawPrepass;
4525         mod->GetLightInfo = R_Q1BSP_GetLightInfo;
4526         mod->DrawShadowMap = R_Q1BSP_DrawShadowMap;
4527         mod->DrawLight = R_Q1BSP_DrawLight;
4528 }
4529
4530 void Mod_Mesh_Destroy(dp_model_t *mod)
4531 {
4532         Mod_UnloadModel(mod);
4533 }
4534
4535 // resets the mesh model to have no geometry to render, ready for a new frame -
4536 // the mesh will be prepared for rendering later using Mod_Mesh_Finalize
4537 void Mod_Mesh_Reset(dp_model_t *mod)
4538 {
4539         mod->num_surfaces = 0;
4540         mod->surfmesh.num_vertices = 0;
4541         mod->surfmesh.num_triangles = 0;
4542         memset(mod->surfmesh.data_vertexhash, -1, mod->surfmesh.num_vertexhashsize * sizeof(*mod->surfmesh.data_vertexhash));
4543         mod->DrawSky = NULL; // will be set if a texture needs it
4544         mod->DrawAddWaterPlanes = NULL; // will be set if a texture needs it
4545 }
4546
4547 texture_t *Mod_Mesh_GetTexture(dp_model_t *mod, const char *name, int defaultdrawflags, int defaulttexflags, int defaultmaterialflags)
4548 {
4549         int i;
4550         texture_t *t;
4551         for (i = 0; i < mod->num_textures; i++)
4552                 if (!strcmp(mod->data_textures[i].name, name))
4553                         return mod->data_textures + i;
4554         if (mod->max_textures <= mod->num_textures)
4555         {
4556                 texture_t *oldtextures = mod->data_textures;
4557                 mod->max_textures = max(mod->max_textures * 2, 1024);
4558                 mod->data_textures = (texture_t *)Mem_Realloc(mod->mempool, mod->data_textures, mod->max_textures * sizeof(*mod->data_textures));
4559                 // update the pointers
4560                 for (i = 0; i < mod->num_surfaces; i++)
4561                         mod->data_surfaces[i].texture = mod->data_textures + (mod->data_surfaces[i].texture - oldtextures);
4562         }
4563         t = &mod->data_textures[mod->num_textures++];
4564         Mod_LoadTextureFromQ3Shader(mod->mempool, mod->name, t, name, false, true, defaulttexflags, defaultmaterialflags);
4565         switch (defaultdrawflags & DRAWFLAG_MASK)
4566         {
4567         case DRAWFLAG_ADDITIVE:
4568                 t->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED;
4569                 t->currentmaterialflags = t->basematerialflags;
4570                 break;
4571         case DRAWFLAG_MODULATE:
4572                 t->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_BLENDED;
4573                 t->currentmaterialflags = t->basematerialflags;
4574                 t->customblendfunc[0] = GL_DST_COLOR;
4575                 t->customblendfunc[1] = GL_ZERO;
4576                 break;
4577         case DRAWFLAG_2XMODULATE:
4578                 t->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_BLENDED;
4579                 t->currentmaterialflags = t->basematerialflags;
4580                 t->customblendfunc[0] = GL_DST_COLOR;
4581                 t->customblendfunc[1] = GL_SRC_COLOR;
4582                 break;
4583         case DRAWFLAG_SCREEN:
4584                 t->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_BLENDED;
4585                 t->currentmaterialflags = t->basematerialflags;
4586                 t->customblendfunc[0] = GL_ONE_MINUS_DST_COLOR;
4587                 t->customblendfunc[1] = GL_ONE;
4588                 break;
4589         default:
4590                 break;
4591         }
4592         return t;
4593 }
4594
4595 msurface_t *Mod_Mesh_AddSurface(dp_model_t *mod, texture_t *tex, qboolean batchwithprevioussurface)
4596 {
4597         msurface_t *surf;
4598         // batch if possible; primarily useful for UI rendering where bounding boxes don't matter
4599         if (batchwithprevioussurface && mod->num_surfaces > 0 && mod->data_surfaces[mod->num_surfaces - 1].texture == tex)
4600                 return mod->data_surfaces + mod->num_surfaces - 1;
4601         // create new surface
4602         if (mod->max_surfaces == mod->num_surfaces)
4603         {
4604                 mod->max_surfaces = 2 * max(mod->num_surfaces, 64);
4605                 mod->data_surfaces = (msurface_t *)Mem_Realloc(mod->mempool, mod->data_surfaces, mod->max_surfaces * sizeof(*mod->data_surfaces));
4606                 mod->sortedmodelsurfaces = (int *)Mem_Realloc(mod->mempool, mod->sortedmodelsurfaces, mod->max_surfaces * sizeof(*mod->sortedmodelsurfaces));
4607         }
4608         surf = mod->data_surfaces + mod->num_surfaces;
4609         mod->num_surfaces++;
4610         memset(surf, 0, sizeof(*surf));
4611         surf->texture = tex;
4612         surf->num_firsttriangle = mod->surfmesh.num_triangles;
4613         surf->num_firstvertex = mod->surfmesh.num_vertices;
4614         if (tex->basematerialflags & (MATERIALFLAG_SKY))
4615                 mod->DrawSky = R_Q1BSP_DrawSky;
4616         if (tex->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
4617                 mod->DrawAddWaterPlanes = R_Q1BSP_DrawAddWaterPlanes;
4618         return surf;
4619 }
4620
4621 int Mod_Mesh_IndexForVertex(dp_model_t *mod, msurface_t *surf, float x, float y, float z, float nx, float ny, float nz, float s, float t, float u, float v, float r, float g, float b, float a)
4622 {
4623         int hashindex, h, vnum, mask;
4624         surfmesh_t *mesh = &mod->surfmesh;
4625         if (mesh->max_vertices == mesh->num_vertices)
4626         {
4627                 mesh->max_vertices = max(mesh->num_vertices * 2, 256);
4628                 mesh->data_vertex3f = (float *)Mem_Realloc(mod->mempool, mesh->data_vertex3f, mesh->max_vertices * sizeof(float[3]));
4629                 mesh->data_svector3f = (float *)Mem_Realloc(mod->mempool, mesh->data_svector3f, mesh->max_vertices * sizeof(float[3]));
4630                 mesh->data_tvector3f = (float *)Mem_Realloc(mod->mempool, mesh->data_tvector3f, mesh->max_vertices * sizeof(float[3]));
4631                 mesh->data_normal3f = (float *)Mem_Realloc(mod->mempool, mesh->data_normal3f, mesh->max_vertices * sizeof(float[3]));
4632                 mesh->data_texcoordtexture2f = (float *)Mem_Realloc(mod->mempool, mesh->data_texcoordtexture2f, mesh->max_vertices * sizeof(float[2]));
4633                 mesh->data_texcoordlightmap2f = (float *)Mem_Realloc(mod->mempool, mesh->data_texcoordlightmap2f, mesh->max_vertices * sizeof(float[2]));
4634                 mesh->data_lightmapcolor4f = (float *)Mem_Realloc(mod->mempool, mesh->data_lightmapcolor4f, mesh->max_vertices * sizeof(float[4]));
4635                 // rebuild the hash table
4636                 mesh->num_vertexhashsize = 4 * mesh->max_vertices;
4637                 mesh->num_vertexhashsize &= ~(mesh->num_vertexhashsize - 1); // round down to pow2
4638                 mesh->data_vertexhash = (int *)Mem_Realloc(mod->mempool, mesh->data_vertexhash, mesh->num_vertexhashsize * sizeof(*mesh->data_vertexhash));
4639                 memset(mesh->data_vertexhash, -1, mesh->num_vertexhashsize * sizeof(*mesh->data_vertexhash));
4640                 mask = mod->surfmesh.num_vertexhashsize - 1;
4641                 // no need to hash the vertices for the entire model, the latest surface will suffice.
4642                 for (vnum = surf ? surf->num_firstvertex : 0; vnum < mesh->num_vertices; vnum++)
4643                 {
4644                         // this uses prime numbers intentionally for computing the hash
4645                         hashindex = (unsigned int)(mesh->data_vertex3f[vnum * 3 + 0] * 2003 + mesh->data_vertex3f[vnum * 3 + 1] * 4001 + mesh->data_vertex3f[vnum * 3 + 2] * 7919 + mesh->data_normal3f[vnum * 3 + 0] * 4097 + mesh->data_normal3f[vnum * 3 + 1] * 257 + mesh->data_normal3f[vnum * 3 + 2] * 17) & mask;
4646                         for (h = hashindex; mesh->data_vertexhash[h] >= 0; h = (h + 1) & mask)
4647                                 ; // just iterate until we find the terminator
4648                         mesh->data_vertexhash[h] = vnum;
4649                 }
4650         }
4651         mask = mod->surfmesh.num_vertexhashsize - 1;
4652         // this uses prime numbers intentionally for computing the hash
4653         hashindex = (unsigned int)(x * 2003 + y * 4001 + z * 7919 + nx * 4097 + ny * 257 + nz * 17) & mask;
4654         // when possible find an identical vertex within the same surface and return it
4655         for(h = hashindex;(vnum = mesh->data_vertexhash[h]) >= 0;h = (h + 1) & mask)
4656         {
4657                 if (vnum >= surf->num_firstvertex
4658                  && mesh->data_vertex3f[vnum * 3 + 0] == x && mesh->data_vertex3f[vnum * 3 + 1] == y && mesh->data_vertex3f[vnum * 3 + 2] == z
4659                  && mesh->data_normal3f[vnum * 3 + 0] == nx && mesh->data_normal3f[vnum * 3 + 1] == ny && mesh->data_normal3f[vnum * 3 + 2] == nz
4660                  && mesh->data_texcoordtexture2f[vnum * 2 + 0] == s && mesh->data_texcoordtexture2f[vnum * 2 + 1] == t
4661                  && mesh->data_texcoordlightmap2f[vnum * 2 + 0] == u && mesh->data_texcoordlightmap2f[vnum * 2 + 1] == v
4662                  && mesh->data_lightmapcolor4f[vnum * 4 + 0] == r && mesh->data_lightmapcolor4f[vnum * 4 + 1] == g && mesh->data_lightmapcolor4f[vnum * 4 + 2] == b && mesh->data_lightmapcolor4f[vnum * 4 + 3] == a)
4663                         return vnum;
4664         }
4665         // add the new vertex
4666         vnum = mesh->num_vertices++;
4667         if (surf->num_vertices > 0)
4668         {
4669                 if (surf->mins[0] > x) surf->mins[0] = x;
4670                 if (surf->mins[1] > y) surf->mins[1] = y;
4671                 if (surf->mins[2] > z) surf->mins[2] = z;
4672                 if (surf->maxs[0] < x) surf->maxs[0] = x;
4673                 if (surf->maxs[1] < y) surf->maxs[1] = y;
4674                 if (surf->maxs[2] < z) surf->maxs[2] = z;
4675         }
4676         else
4677         {
4678                 VectorSet(surf->mins, x, y, z);
4679                 VectorSet(surf->maxs, x, y, z);
4680         }
4681         surf->num_vertices = mesh->num_vertices - surf->num_firstvertex;
4682         mesh->data_vertexhash[h] = vnum;
4683         mesh->data_vertex3f[vnum * 3 + 0] = x;
4684         mesh->data_vertex3f[vnum * 3 + 1] = y;
4685         mesh->data_vertex3f[vnum * 3 + 2] = z;
4686         mesh->data_normal3f[vnum * 3 + 0] = nx;
4687         mesh->data_normal3f[vnum * 3 + 1] = ny;
4688         mesh->data_normal3f[vnum * 3 + 2] = nz;
4689         mesh->data_texcoordtexture2f[vnum * 2 + 0] = s;
4690         mesh->data_texcoordtexture2f[vnum * 2 + 1] = t;
4691         mesh->data_texcoordlightmap2f[vnum * 2 + 0] = u;
4692         mesh->data_texcoordlightmap2f[vnum * 2 + 1] = v;
4693         mesh->data_lightmapcolor4f[vnum * 4 + 0] = r;
4694         mesh->data_lightmapcolor4f[vnum * 4 + 1] = g;
4695         mesh->data_lightmapcolor4f[vnum * 4 + 2] = b;
4696         mesh->data_lightmapcolor4f[vnum * 4 + 3] = a;
4697         return vnum;
4698 }
4699
4700 void Mod_Mesh_AddTriangle(dp_model_t *mod, msurface_t *surf, int e0, int e1, int e2)
4701 {
4702         surfmesh_t *mesh = &mod->surfmesh;
4703         if (mesh->max_triangles == mesh->num_triangles)
4704         {
4705                 mesh->max_triangles = 2 * max(mesh->num_triangles, 128);
4706                 mesh->data_element3s = (unsigned short *)Mem_Realloc(mod->mempool, mesh->data_element3s, mesh->max_triangles * sizeof(unsigned short[3]));
4707                 mesh->data_element3i = (int *)Mem_Realloc(mod->mempool, mesh->data_element3i, mesh->max_triangles * sizeof(int[3]));
4708         }
4709         mesh->data_element3s[mesh->num_triangles * 3 + 0] = e0;
4710         mesh->data_element3s[mesh->num_triangles * 3 + 1] = e1;
4711         mesh->data_element3s[mesh->num_triangles * 3 + 2] = e2;
4712         mesh->data_element3i[mesh->num_triangles * 3 + 0] = e0;
4713         mesh->data_element3i[mesh->num_triangles * 3 + 1] = e1;
4714         mesh->data_element3i[mesh->num_triangles * 3 + 2] = e2;
4715         mesh->num_triangles++;
4716         surf->num_triangles++;
4717 }
4718
4719 static void Mod_Mesh_MakeSortedSurfaces(dp_model_t *mod)
4720 {
4721         int i, j;
4722         texture_t *tex;
4723         msurface_t *surf, *surf2;
4724
4725         // build the sorted surfaces list properly to reduce material setup
4726         // this is easy because we're just sorting on texture and don't care about the order of textures
4727         mod->nummodelsurfaces = 0;
4728         for (i = 0; i < mod->num_surfaces; i++)
4729                 mod->data_surfaces[i].included = false;
4730         for (i = 0; i < mod->num_surfaces; i++)
4731         {
4732                 surf = mod->data_surfaces + i;
4733                 if (surf->included)
4734                         continue;
4735                 tex = surf->texture;
4736                 // j = i is intentional
4737                 for (j = i; j < mod->num_surfaces; j++)
4738                 {
4739                         surf2 = mod->data_surfaces + j;
4740                         if (surf2->included)
4741                                 continue;
4742                         if (surf2->texture == tex)
4743                         {
4744                                 surf2->included = true;
4745                                 mod->sortedmodelsurfaces[mod->nummodelsurfaces++] = j;
4746                         }
4747                 }
4748         }
4749 }
4750
4751 void Mod_Mesh_ComputeBounds(dp_model_t *mod)
4752 {
4753         int i;
4754         vec_t x2a, x2b, y2a, y2b, z2a, z2b, x2, y2, z2, yawradius, rotatedradius;
4755
4756         if (mod->surfmesh.num_vertices > 0)
4757         {
4758                 // calculate normalmins/normalmaxs
4759                 VectorCopy(mod->surfmesh.data_vertex3f, mod->normalmins);
4760                 VectorCopy(mod->surfmesh.data_vertex3f, mod->normalmaxs);
4761                 for (i = 1; i < mod->surfmesh.num_vertices; i++)
4762                 {
4763                         float x = mod->surfmesh.data_vertex3f[i * 3 + 0];
4764                         float y = mod->surfmesh.data_vertex3f[i * 3 + 1];
4765                         float z = mod->surfmesh.data_vertex3f[i * 3 + 2];
4766                         // expand bounds to include this vertex
4767                         if (mod->normalmins[0] > x) mod->normalmins[0] = x;
4768                         if (mod->normalmins[1] > y) mod->normalmins[1] = y;
4769                         if (mod->normalmins[2] > z) mod->normalmins[2] = z;
4770                         if (mod->normalmaxs[0] < x) mod->normalmaxs[0] = x;
4771                         if (mod->normalmaxs[1] < y) mod->normalmaxs[1] = y;
4772                         if (mod->normalmaxs[2] < z) mod->normalmaxs[2] = z;
4773                 }
4774                 // calculate yawmins/yawmaxs, rotatedmins/maxs from normalmins/maxs
4775                 // (fast but less accurate than doing it per vertex)
4776                 x2a = mod->normalmins[0] * mod->normalmins[0];
4777                 x2b = mod->normalmaxs[0] * mod->normalmaxs[0];
4778                 y2a = mod->normalmins[1] * mod->normalmins[1];
4779                 y2b = mod->normalmaxs[1] * mod->normalmaxs[1];
4780                 z2a = mod->normalmins[2] * mod->normalmins[2];
4781                 z2b = mod->normalmaxs[2] * mod->normalmaxs[2];
4782                 x2 = max(x2a, x2b);
4783                 y2 = max(y2a, y2b);
4784                 z2 = max(z2a, z2b);
4785                 yawradius = sqrt(x2 + y2);
4786                 rotatedradius = sqrt(x2 + y2 + z2);
4787                 VectorSet(mod->yawmins, -yawradius, -yawradius, mod->normalmins[2]);
4788                 VectorSet(mod->yawmaxs, yawradius, yawradius, mod->normalmaxs[2]);
4789                 VectorSet(mod->rotatedmins, -rotatedradius, -rotatedradius, -rotatedradius);
4790                 VectorSet(mod->rotatedmaxs, rotatedradius, rotatedradius, rotatedradius);
4791                 mod->radius = rotatedradius;
4792                 mod->radius2 = x2 + y2 + z2;
4793         }
4794         else
4795         {
4796                 VectorClear(mod->normalmins);
4797                 VectorClear(mod->normalmaxs);
4798                 VectorClear(mod->yawmins);
4799                 VectorClear(mod->yawmaxs);
4800                 VectorClear(mod->rotatedmins);
4801                 VectorClear(mod->rotatedmaxs);
4802                 mod->radius = 0;
4803                 mod->radius2 = 0;
4804         }
4805 }
4806
4807 void Mod_Mesh_Finalize(dp_model_t *mod)
4808 {
4809         Mod_Mesh_ComputeBounds(mod);
4810         Mod_Mesh_MakeSortedSurfaces(mod);
4811         Mod_BuildTextureVectorsFromNormals(0, mod->surfmesh.num_vertices, mod->surfmesh.num_triangles, mod->surfmesh.data_vertex3f, mod->surfmesh.data_texcoordtexture2f, mod->surfmesh.data_normal3f, mod->surfmesh.data_element3i, mod->surfmesh.data_svector3f, mod->surfmesh.data_tvector3f, true);
4812 }