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_enableshadowvolumes = {CVAR_SAVE, "r_enableshadowvolumes", "1", "Enables use of Stencil Shadow Volume shadowing methods, saves some memory if turned off"};
  31 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"};
  32 cvar_t r_mipnormalmaps = {CVAR_SAVE, "r_mipnormalmaps", "1", "mipmaps normalmaps (turning it off looks sharper but may have aliasing)"};
  33 cvar_t mod_generatelightmaps_unitspersample = {CVAR_SAVE, "mod_generatelightmaps_unitspersample", "8", "lightmap resolution"};
  34 cvar_t mod_generatelightmaps_borderpixels = {CVAR_SAVE, "mod_generatelightmaps_borderpixels", "2", "extra space around polygons to prevent sampling artifacts"};
  35 cvar_t mod_generatelightmaps_texturesize = {CVAR_SAVE, "mod_generatelightmaps_texturesize", "1024", "size of lightmap textures"};
  36 cvar_t mod_generatelightmaps_lightmapsamples = {CVAR_SAVE, "mod_generatelightmaps_lightmapsamples", "16", "number of shadow tests done per lightmap pixel"};
  37 cvar_t mod_generatelightmaps_vertexsamples = {CVAR_SAVE, "mod_generatelightmaps_vertexsamples", "16", "number of shadow tests done per vertex"};
  38 cvar_t mod_generatelightmaps_gridsamples = {CVAR_SAVE, "mod_generatelightmaps_gridsamples", "64", "number of shadow tests done per lightgrid cell"};
  39 cvar_t mod_generatelightmaps_lightmapradius = {CVAR_SAVE, "mod_generatelightmaps_lightmapradius", "16", "sampling area around each lightmap pixel"};
  40 cvar_t mod_generatelightmaps_vertexradius = {CVAR_SAVE, "mod_generatelightmaps_vertexradius", "16", "sampling area around each vertex"};
  41 cvar_t mod_generatelightmaps_gridradius = {CVAR_SAVE, "mod_generatelightmaps_gridradius", "64", "sampling area around each lightgrid cell center"};
  42
  43 dp_model_t *loadmodel;
  44
  45 static mempool_t *mod_mempool;
  46 static memexpandablearray_t models;
  47
  48 static mempool_t* q3shaders_mem;
  49 typedef struct q3shader_hash_entry_s
  50 {
  51   q3shaderinfo_t shader;
  52   struct q3shader_hash_entry_s* chain;
  53 } q3shader_hash_entry_t;
  54 #define Q3SHADER_HASH_SIZE  1021
  55 typedef struct q3shader_data_s
  56 {
  57   memexpandablearray_t hash_entries;
  58   q3shader_hash_entry_t hash[Q3SHADER_HASH_SIZE];
  59   memexpandablearray_t char_ptrs;
  60 } q3shader_data_t;
  61 static q3shader_data_t* q3shader_data;
  62
  63 static void mod_start(void)
  64 {
  65         int i, count;
  66         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  67         dp_model_t *mod;
  68
  69         SCR_PushLoadingScreen(false, "Loading models", 1.0);
  70         count = 0;
  71         for (i = 0;i < nummodels;i++)
  72                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  73                         if (mod->used)
  74                                 ++count;
  75         for (i = 0;i < nummodels;i++)
  76                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  77                         if (mod->used)
  78                         {
  79                                 SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
  80                                 Mod_LoadModel(mod, true, false);
  81                                 SCR_PopLoadingScreen(false);
  82                         }
  83         SCR_PopLoadingScreen(false);
  84 }
  85
  86 static void mod_shutdown(void)
  87 {
  88         int i;
  89         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  90         dp_model_t *mod;
  91
  92         for (i = 0;i < nummodels;i++)
  93                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && (mod->loaded || mod->mempool))
  94                         Mod_UnloadModel(mod);
  95
  96         Mod_FreeQ3Shaders();
  97         Mod_Skeletal_FreeBuffers();
  98 }
  99
 100 static void mod_newmap(void)
 101 {
 102         msurface_t *surface;
 103         int i, j, k, surfacenum, ssize, tsize;
 104         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 105         dp_model_t *mod;
 106
 107         for (i = 0;i < nummodels;i++)
 108         {
 109                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool)
 110                 {
 111                         for (j = 0;j < mod->num_textures && mod->data_textures;j++)
 112                         {
 113                                 for (k = 0;k < mod->data_textures[j].numskinframes;k++)
 114                                         R_SkinFrame_MarkUsed(mod->data_textures[j].skinframes[k]);
 115                                 for (k = 0;k < mod->data_textures[j].backgroundnumskinframes;k++)
 116                                         R_SkinFrame_MarkUsed(mod->data_textures[j].backgroundskinframes[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_enableshadowvolumes);
 165         Cvar_RegisterVariable(&r_mipskins);
 166         Cvar_RegisterVariable(&r_mipnormalmaps);
 167         Cvar_RegisterVariable(&mod_generatelightmaps_unitspersample);
 168         Cvar_RegisterVariable(&mod_generatelightmaps_borderpixels);
 169         Cvar_RegisterVariable(&mod_generatelightmaps_texturesize);
 170
 171         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapsamples);
 172         Cvar_RegisterVariable(&mod_generatelightmaps_vertexsamples);
 173         Cvar_RegisterVariable(&mod_generatelightmaps_gridsamples);
 174         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapradius);
 175         Cvar_RegisterVariable(&mod_generatelightmaps_vertexradius);
 176         Cvar_RegisterVariable(&mod_generatelightmaps_gridradius);
 177
 178         Cmd_AddCommand ("modellist", Mod_Print, "prints a list of loaded models");
 179         Cmd_AddCommand ("modelprecache", Mod_Precache, "load a model");
 180         Cmd_AddCommand ("modeldecompile", Mod_Decompile_f, "exports a model in several formats for editing purposes");
 181         Cmd_AddCommand ("mod_generatelightmaps", Mod_GenerateLightmaps_f, "rebuilds lighting on current worldmodel");
 182 }
 183
 184 void Mod_RenderInit(void)
 185 {
 186         R_RegisterModule("Models", mod_start, mod_shutdown, mod_newmap, NULL, NULL);
 187 }
 188
 189 void Mod_UnloadModel (dp_model_t *mod)
 190 {
 191         char name[MAX_QPATH];
 192         qboolean used;
 193         dp_model_t *parentmodel;
 194
 195         if (developer_loading.integer)
 196                 Con_Printf("unloading model %s\n", mod->name);
 197
 198         strlcpy(name, mod->name, sizeof(name));
 199         parentmodel = mod->brush.parentmodel;
 200         used = mod->used;
 201         if (mod->mempool)
 202         {
 203                 if (mod->surfmesh.vertex3fbuffer)
 204                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.vertex3fbuffer);
 205                 mod->surfmesh.vertex3fbuffer = NULL;
 206                 if (mod->surfmesh.vertexmeshbuffer)
 207                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.vertexmeshbuffer);
 208                 mod->surfmesh.vertexmeshbuffer = NULL;
 209                 if (mod->surfmesh.data_element3i_indexbuffer)
 210                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3i_indexbuffer);
 211                 mod->surfmesh.data_element3i_indexbuffer = NULL;
 212                 if (mod->surfmesh.data_element3s_indexbuffer)
 213                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3s_indexbuffer);
 214                 mod->surfmesh.data_element3s_indexbuffer = NULL;
 215                 if (mod->surfmesh.vbo_vertexbuffer)
 216                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.vbo_vertexbuffer);
 217                 mod->surfmesh.vbo_vertexbuffer = NULL;
 218         }
 219         // free textures/memory attached to the model
 220         R_FreeTexturePool(&mod->texturepool);
 221         Mem_FreePool(&mod->mempool);
 222         // clear the struct to make it available
 223         memset(mod, 0, sizeof(dp_model_t));
 224         // restore the fields we want to preserve
 225         strlcpy(mod->name, name, sizeof(mod->name));
 226         mod->brush.parentmodel = parentmodel;
 227         mod->used = used;
 228         mod->loaded = false;
 229 }
 230
 231 static void R_Model_Null_Draw(entity_render_t *ent)
 232 {
 233         return;
 234 }
 235
 236
 237 typedef void (*mod_framegroupify_parsegroups_t) (unsigned int i, int start, int len, float fps, qboolean loop, const char *name, void *pass);
 238
 239 static int Mod_FrameGroupify_ParseGroups(const char *buf, mod_framegroupify_parsegroups_t cb, void *pass)
 240 {
 241         const char *bufptr;
 242         int start, len;
 243         float fps;
 244         unsigned int i;
 245         qboolean loop;
 246         char name[64];
 247
 248         bufptr = buf;
 249         i = 0;
 250         while(bufptr)
 251         {
 252                 // an anim scene!
 253
 254                 // REQUIRED: fetch start
 255                 COM_ParseToken_Simple(&bufptr, true, false, true);
 256                 if (!bufptr)
 257                         break; // end of file
 258                 if (!strcmp(com_token, "\n"))
 259                         continue; // empty line
 260                 start = atoi(com_token);
 261
 262                 // REQUIRED: fetch length
 263                 COM_ParseToken_Simple(&bufptr, true, false, true);
 264                 if (!bufptr || !strcmp(com_token, "\n"))
 265                 {
 266                         Con_Printf("framegroups file: missing number of frames\n");
 267                         continue;
 268                 }
 269                 len = atoi(com_token);
 270
 271                 // OPTIONAL args start
 272                 COM_ParseToken_Simple(&bufptr, true, false, true);
 273
 274                 // OPTIONAL: fetch fps
 275                 fps = 20;
 276                 if (bufptr && strcmp(com_token, "\n"))
 277                 {
 278                         fps = atof(com_token);
 279                         COM_ParseToken_Simple(&bufptr, true, false, true);
 280                 }
 281
 282                 // OPTIONAL: fetch loopflag
 283                 loop = true;
 284                 if (bufptr && strcmp(com_token, "\n"))
 285                 {
 286                         loop = (atoi(com_token) != 0);
 287                         COM_ParseToken_Simple(&bufptr, true, false, true);
 288                 }
 289
 290                 // OPTIONAL: fetch name
 291                 name[0] = 0;
 292                 if (bufptr && strcmp(com_token, "\n"))
 293                 {
 294                         strlcpy(name, com_token, sizeof(name));
 295                         COM_ParseToken_Simple(&bufptr, true, false, true);
 296                 }
 297
 298                 // OPTIONAL: remaining unsupported tokens (eat them)
 299                 while (bufptr && strcmp(com_token, "\n"))
 300                         COM_ParseToken_Simple(&bufptr, true, false, true);
 301
 302                 //Con_Printf("data: %d %d %d %f %d (%s)\n", i, start, len, fps, loop, name);
 303
 304                 if(cb)
 305                         cb(i, start, len, fps, loop, (name[0] ? name : NULL), pass);
 306                 ++i;
 307         }
 308
 309         return i;
 310 }
 311
 312 static void Mod_FrameGroupify_ParseGroups_Store (unsigned int i, int start, int len, float fps, qboolean loop, const char *name, void *pass)
 313 {
 314         dp_model_t *mod = (dp_model_t *) pass;
 315         animscene_t *anim = &mod->animscenes[i];
 316         if(name)
 317                 strlcpy(anim->name, name, sizeof(anim[i].name));
 318         else
 319                 dpsnprintf(anim->name, sizeof(anim[i].name), "groupified_%d_anim", i);
 320         anim->firstframe = bound(0, start, mod->num_poses - 1);
 321         anim->framecount = bound(1, len, mod->num_poses - anim->firstframe);
 322         anim->framerate = max(1, fps);
 323         anim->loop = !!loop;
 324         //Con_Printf("frame group %d is %d %d %f %d\n", i, start, len, fps, loop);
 325 }
 326
 327 static void Mod_FrameGroupify(dp_model_t *mod, const char *buf)
 328 {
 329         unsigned int cnt;
 330
 331         // 0. count
 332         cnt = Mod_FrameGroupify_ParseGroups(buf, NULL, NULL);
 333         if(!cnt)
 334         {
 335                 Con_Printf("no scene found in framegroups file, aborting\n");
 336                 return;
 337         }
 338         mod->numframes = cnt;
 339
 340         // 1. reallocate
 341         // (we do not free the previous animscenes, but model unloading will free the pool owning them, so it's okay)
 342         mod->animscenes = (animscene_t *) Mem_Alloc(mod->mempool, sizeof(animscene_t) * mod->numframes);
 343
 344         // 2. parse
 345         Mod_FrameGroupify_ParseGroups(buf, Mod_FrameGroupify_ParseGroups_Store, mod);
 346 }
 347
 348 static void Mod_FindPotentialDeforms(dp_model_t *mod)
 349 {
 350         int i, j;
 351         texture_t *texture;
 352         mod->wantnormals = false;
 353         mod->wanttangents = false;
 354         for (i = 0;i < mod->num_textures;i++)
 355         {
 356                 texture = mod->data_textures + i;
 357                 if (texture->tcgen.tcgen == Q3TCGEN_ENVIRONMENT)
 358                         mod->wantnormals = true;
 359                 for (j = 0;j < Q3MAXDEFORMS;j++)
 360                 {
 361                         if (texture->deforms[j].deform == Q3DEFORM_AUTOSPRITE)
 362                         {
 363                                 mod->wanttangents = true;
 364                                 mod->wantnormals = true;
 365                                 break;
 366                         }
 367                         if (texture->deforms[j].deform != Q3DEFORM_NONE)
 368                                 mod->wantnormals = true;
 369                 }
 370         }
 371 }
 372
 373 /*
 374 ==================
 375 Mod_LoadModel
 376
 377 Loads a model
 378 ==================
 379 */
 380 dp_model_t *Mod_LoadModel(dp_model_t *mod, qboolean crash, qboolean checkdisk)
 381 {
 382         int num;
 383         unsigned int crc;
 384         void *buf;
 385         fs_offset_t filesize = 0;
 386         char vabuf[1024];
 387
 388         mod->used = true;
 389
 390         if (mod->name[0] == '*') // submodel
 391                 return mod;
 392
 393         if (!strcmp(mod->name, "null"))
 394         {
 395                 if(mod->loaded)
 396                         return mod;
 397
 398                 if (mod->loaded || mod->mempool)
 399                         Mod_UnloadModel(mod);
 400
 401                 if (developer_loading.integer)
 402                         Con_Printf("loading model %s\n", mod->name);
 403
 404                 mod->used = true;
 405                 mod->crc = (unsigned int)-1;
 406                 mod->loaded = false;
 407
 408                 VectorClear(mod->normalmins);
 409                 VectorClear(mod->normalmaxs);
 410                 VectorClear(mod->yawmins);
 411                 VectorClear(mod->yawmaxs);
 412                 VectorClear(mod->rotatedmins);
 413                 VectorClear(mod->rotatedmaxs);
 414
 415                 mod->modeldatatypestring = "null";
 416                 mod->type = mod_null;
 417                 mod->Draw = R_Model_Null_Draw;
 418                 mod->numframes = 2;
 419                 mod->numskins = 1;
 420
 421                 // no fatal errors occurred, so this model is ready to use.
 422                 mod->loaded = true;
 423
 424                 return mod;
 425         }
 426
 427         crc = 0;
 428         buf = NULL;
 429
 430         // even if the model is loaded it still may need reloading...
 431
 432         // if it is not loaded or checkdisk is true we need to calculate the crc
 433         if (!mod->loaded || checkdisk)
 434         {
 435                 if (checkdisk && mod->loaded)
 436                         Con_DPrintf("checking model %s\n", mod->name);
 437                 buf = FS_LoadFile (mod->name, tempmempool, false, &filesize);
 438                 if (buf)
 439                 {
 440                         crc = CRC_Block((unsigned char *)buf, filesize);
 441                         // we need to reload the model if the crc does not match
 442                         if (mod->crc != crc)
 443                                 mod->loaded = false;
 444                 }
 445         }
 446
 447         // if the model is already loaded and checks passed, just return
 448         if (mod->loaded)
 449         {
 450                 if (buf)
 451                         Mem_Free(buf);
 452                 return mod;
 453         }
 454
 455         if (developer_loading.integer)
 456                 Con_Printf("loading model %s\n", mod->name);
 457
 458         SCR_PushLoadingScreen(true, mod->name, 1);
 459
 460         // LordHavoc: unload the existing model in this slot (if there is one)
 461         if (mod->loaded || mod->mempool)
 462                 Mod_UnloadModel(mod);
 463
 464         // load the model
 465         mod->used = true;
 466         mod->crc = crc;
 467         // errors can prevent the corresponding mod->loaded = true;
 468         mod->loaded = false;
 469
 470         // default lightmap scale
 471         mod->lightmapscale = 1;
 472
 473         // default model radius and bounding box (mainly for missing models)
 474         mod->radius = 16;
 475         VectorSet(mod->normalmins, -mod->radius, -mod->radius, -mod->radius);
 476         VectorSet(mod->normalmaxs, mod->radius, mod->radius, mod->radius);
 477         VectorSet(mod->yawmins, -mod->radius, -mod->radius, -mod->radius);
 478         VectorSet(mod->yawmaxs, mod->radius, mod->radius, mod->radius);
 479         VectorSet(mod->rotatedmins, -mod->radius, -mod->radius, -mod->radius);
 480         VectorSet(mod->rotatedmaxs, mod->radius, mod->radius, mod->radius);
 481
 482         if (!q3shaders_mem)
 483         {
 484                 // load q3 shaders for the first time, or after a level change
 485                 Mod_LoadQ3Shaders();
 486         }
 487
 488         if (buf)
 489         {
 490                 char *bufend = (char *)buf + filesize;
 491
 492                 // all models use memory, so allocate a memory pool
 493                 mod->mempool = Mem_AllocPool(mod->name, 0, NULL);
 494
 495                 num = LittleLong(*((int *)buf));
 496                 // call the apropriate loader
 497                 loadmodel = mod;
 498                 if (!strcasecmp(FS_FileExtension(mod->name), "obj")) Mod_OBJ_Load(mod, buf, bufend);
 499                 else if (!memcmp(buf, "IDPO", 4)) Mod_IDP0_Load(mod, buf, bufend);
 500                 else if (!memcmp(buf, "IDP2", 4)) Mod_IDP2_Load(mod, buf, bufend);
 501                 else if (!memcmp(buf, "IDP3", 4)) Mod_IDP3_Load(mod, buf, bufend);
 502                 else if (!memcmp(buf, "IDSP", 4)) Mod_IDSP_Load(mod, buf, bufend);
 503                 else if (!memcmp(buf, "IDS2", 4)) Mod_IDS2_Load(mod, buf, bufend);
 504                 else if (!memcmp(buf, "IBSP", 4)) Mod_IBSP_Load(mod, buf, bufend);
 505                 else if (!memcmp(buf, "ZYMOTICMODEL", 12)) Mod_ZYMOTICMODEL_Load(mod, buf, bufend);
 506                 else if (!memcmp(buf, "DARKPLACESMODEL", 16)) Mod_DARKPLACESMODEL_Load(mod, buf, bufend);
 507                 else if (!memcmp(buf, "ACTRHEAD", 8)) Mod_PSKMODEL_Load(mod, buf, bufend);
 508                 else if (!memcmp(buf, "INTERQUAKEMODEL", 16)) Mod_INTERQUAKEMODEL_Load(mod, buf, bufend);
 509                 else if (strlen(mod->name) >= 4 && !strcmp(mod->name + strlen(mod->name) - 4, ".map")) Mod_MAP_Load(mod, buf, bufend);
 510                 else if (num == BSPVERSION || num == 30 || !memcmp(buf, "BSP2", 4)) Mod_Q1BSP_Load(mod, buf, bufend);
 511                 else Con_Printf("Mod_LoadModel: model \"%s\" is of unknown/unsupported type\n", mod->name);
 512                 Mem_Free(buf);
 513
 514                 Mod_FindPotentialDeforms(mod);
 515
 516                 buf = FS_LoadFile(va(vabuf, sizeof(vabuf), "%s.framegroups", mod->name), tempmempool, false, &filesize);
 517                 if(buf)
 518                 {
 519                         Mod_FrameGroupify(mod, (const char *)buf);
 520                         Mem_Free(buf);
 521                 }
 522
 523                 Mod_BuildVBOs();
 524         }
 525         else if (crash)
 526         {
 527                 // LordHavoc: Sys_Error was *ANNOYING*
 528                 Con_Printf ("Mod_LoadModel: %s not found\n", mod->name);
 529         }
 530
 531         // no fatal errors occurred, so this model is ready to use.
 532         mod->loaded = true;
 533
 534         SCR_PopLoadingScreen(false);
 535
 536         return mod;
 537 }
 538
 539 void Mod_ClearUsed(void)
 540 {
 541         int i;
 542         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 543         dp_model_t *mod;
 544         for (i = 0;i < nummodels;i++)
 545                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0])
 546                         mod->used = false;
 547 }
 548
 549 void Mod_PurgeUnused(void)
 550 {
 551         int i;
 552         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 553         dp_model_t *mod;
 554         for (i = 0;i < nummodels;i++)
 555         {
 556                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !mod->used)
 557                 {
 558                         Mod_UnloadModel(mod);
 559                         Mem_ExpandableArray_FreeRecord(&models, mod);
 560                 }
 561         }
 562 }
 563
 564 /*
 565 ==================
 566 Mod_FindName
 567
 568 ==================
 569 */
 570 dp_model_t *Mod_FindName(const char *name, const char *parentname)
 571 {
 572         int i;
 573         int nummodels;
 574         dp_model_t *mod;
 575
 576         if (!parentname)
 577                 parentname = "";
 578
 579         // if we're not dedicatd, the renderer calls will crash without video
 580         Host_StartVideo();
 581
 582         nummodels = Mem_ExpandableArray_IndexRange(&models);
 583
 584         if (!name[0])
 585                 Host_Error ("Mod_ForName: NULL name");
 586
 587         // search the currently loaded models
 588         for (i = 0;i < nummodels;i++)
 589         {
 590                 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))))
 591                 {
 592                         mod->used = true;
 593                         return mod;
 594                 }
 595         }
 596
 597         // no match found, create a new one
 598         mod = (dp_model_t *) Mem_ExpandableArray_AllocRecord(&models);
 599         strlcpy(mod->name, name, sizeof(mod->name));
 600         if (parentname[0])
 601                 mod->brush.parentmodel = Mod_FindName(parentname, NULL);
 602         else
 603                 mod->brush.parentmodel = NULL;
 604         mod->loaded = false;
 605         mod->used = true;
 606         return mod;
 607 }
 608
 609 /*
 610 ==================
 611 Mod_ForName
 612
 613 Loads in a model for the given name
 614 ==================
 615 */
 616 dp_model_t *Mod_ForName(const char *name, qboolean crash, qboolean checkdisk, const char *parentname)
 617 {
 618         dp_model_t *model;
 619         model = Mod_FindName(name, parentname);
 620         if (!model->loaded || checkdisk)
 621                 Mod_LoadModel(model, crash, checkdisk);
 622         return model;
 623 }
 624
 625 /*
 626 ==================
 627 Mod_Reload
 628
 629 Reloads all models if they have changed
 630 ==================
 631 */
 632 void Mod_Reload(void)
 633 {
 634         int i, count;
 635         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 636         dp_model_t *mod;
 637
 638         SCR_PushLoadingScreen(false, "Reloading models", 1.0);
 639         count = 0;
 640         for (i = 0;i < nummodels;i++)
 641                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 642                         ++count;
 643         for (i = 0;i < nummodels;i++)
 644                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 645                 {
 646                         SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
 647                         Mod_LoadModel(mod, true, true);
 648                         SCR_PopLoadingScreen(false);
 649                 }
 650         SCR_PopLoadingScreen(false);
 651 }
 652
 653 unsigned char *mod_base;
 654
 655
 656 //=============================================================================
 657
 658 /*
 659 ================
 660 Mod_Print
 661 ================
 662 */
 663 static void Mod_Print(void)
 664 {
 665         int i;
 666         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 667         dp_model_t *mod;
 668
 669         Con_Print("Loaded models:\n");
 670         for (i = 0;i < nummodels;i++)
 671         {
 672                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
 673                 {
 674                         if (mod->brush.numsubmodels)
 675                                 Con_Printf("%4iK %s (%i submodels)\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name, mod->brush.numsubmodels);
 676                         else
 677                                 Con_Printf("%4iK %s\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name);
 678                 }
 679         }
 680 }
 681
 682 /*
 683 ================
 684 Mod_Precache
 685 ================
 686 */
 687 static void Mod_Precache(void)
 688 {
 689         if (Cmd_Argc() == 2)
 690                 Mod_ForName(Cmd_Argv(1), false, true, Cmd_Argv(1)[0] == '*' ? cl.model_name[1] : NULL);
 691         else
 692                 Con_Print("usage: modelprecache <filename>\n");
 693 }
 694
 695 int Mod_BuildVertexRemapTableFromElements(int numelements, const int *elements, int numvertices, int *remapvertices)
 696 {
 697         int i, count;
 698         unsigned char *used;
 699         used = (unsigned char *)Mem_Alloc(tempmempool, numvertices);
 700         memset(used, 0, numvertices);
 701         for (i = 0;i < numelements;i++)
 702                 used[elements[i]] = 1;
 703         for (i = 0, count = 0;i < numvertices;i++)
 704                 remapvertices[i] = used[i] ? count++ : -1;
 705         Mem_Free(used);
 706         return count;
 707 }
 708
 709 #if 1
 710 // fast way, using an edge hash
 711 #define TRIANGLEEDGEHASH 8192
 712 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 713 {
 714         int i, j, p, e1, e2, *n, hashindex, count, match;
 715         const int *e;
 716         typedef struct edgehashentry_s
 717         {
 718                 struct edgehashentry_s *next;
 719                 int triangle;
 720                 int element[2];
 721         }
 722         edgehashentry_t;
 723         static edgehashentry_t **edgehash;
 724         edgehashentry_t *edgehashentries, *hash;
 725         if (!numtriangles)
 726                 return;
 727         edgehash = (edgehashentry_t **)Mem_Alloc(tempmempool, TRIANGLEEDGEHASH * sizeof(*edgehash));
 728         // if there are too many triangles for the stack array, allocate larger buffer
 729         edgehashentries = (edgehashentry_t *)Mem_Alloc(tempmempool, numtriangles * 3 * sizeof(edgehashentry_t));
 730         // find neighboring triangles
 731         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 732         {
 733                 for (j = 0, p = 2;j < 3;p = j, j++)
 734                 {
 735                         e1 = e[p];
 736                         e2 = e[j];
 737                         // this hash index works for both forward and backward edges
 738                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 739                         hash = edgehashentries + i * 3 + j;
 740                         hash->next = edgehash[hashindex];
 741                         edgehash[hashindex] = hash;
 742                         hash->triangle = i;
 743                         hash->element[0] = e1;
 744                         hash->element[1] = e2;
 745                 }
 746         }
 747         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 748         {
 749                 for (j = 0, p = 2;j < 3;p = j, j++)
 750                 {
 751                         e1 = e[p];
 752                         e2 = e[j];
 753                         // this hash index works for both forward and backward edges
 754                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 755                         count = 0;
 756                         match = -1;
 757                         for (hash = edgehash[hashindex];hash;hash = hash->next)
 758                         {
 759                                 if (hash->element[0] == e2 && hash->element[1] == e1)
 760                                 {
 761                                         if (hash->triangle != i)
 762                                                 match = hash->triangle;
 763                                         count++;
 764                                 }
 765                                 else if ((hash->element[0] == e1 && hash->element[1] == e2))
 766                                         count++;
 767                         }
 768                         // detect edges shared by three triangles and make them seams
 769                         if (count > 2)
 770                                 match = -1;
 771                         n[p] = match;
 772                 }
 773
 774                 // also send a keepalive here (this can take a while too!)
 775                 CL_KeepaliveMessage(false);
 776         }
 777         // free the allocated buffer
 778         Mem_Free(edgehashentries);
 779         Mem_Free(edgehash);
 780 }
 781 #else
 782 // very slow but simple way
 783 static int Mod_FindTriangleWithEdge(const int *elements, int numtriangles, int start, int end, int ignore)
 784 {
 785         int i, match, count;
 786         count = 0;
 787         match = -1;
 788         for (i = 0;i < numtriangles;i++, elements += 3)
 789         {
 790                      if ((elements[0] == start && elements[1] == end)
 791                       || (elements[1] == start && elements[2] == end)
 792                       || (elements[2] == start && elements[0] == end))
 793                 {
 794                         if (i != ignore)
 795                                 match = i;
 796                         count++;
 797                 }
 798                 else if ((elements[1] == start && elements[0] == end)
 799                       || (elements[2] == start && elements[1] == end)
 800                       || (elements[0] == start && elements[2] == end))
 801                         count++;
 802         }
 803         // detect edges shared by three triangles and make them seams
 804         if (count > 2)
 805                 match = -1;
 806         return match;
 807 }
 808
 809 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 810 {
 811         int i, *n;
 812         const int *e;
 813         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 814         {
 815                 n[0] = Mod_FindTriangleWithEdge(elements, numtriangles, e[1], e[0], i);
 816                 n[1] = Mod_FindTriangleWithEdge(elements, numtriangles, e[2], e[1], i);
 817                 n[2] = Mod_FindTriangleWithEdge(elements, numtriangles, e[0], e[2], i);
 818         }
 819 }
 820 #endif
 821
 822 void Mod_ValidateElements(int *elements, int numtriangles, int firstvertex, int numverts, const char *filename, int fileline)
 823 {
 824         int i, warned = false, endvertex = firstvertex + numverts;
 825         for (i = 0;i < numtriangles * 3;i++)
 826         {
 827                 if (elements[i] < firstvertex || elements[i] >= endvertex)
 828                 {
 829                         if (!warned)
 830                         {
 831                                 warned = true;
 832                                 Con_Printf("Mod_ValidateElements: out of bounds elements detected at %s:%d\n", filename, fileline);
 833                         }
 834                         elements[i] = firstvertex;
 835                 }
 836         }
 837 }
 838
 839 // warning: this is an expensive function!
 840 void Mod_BuildNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const int *elements, float *normal3f, qboolean areaweighting)
 841 {
 842         int i, j;
 843         const int *element;
 844         float *vectorNormal;
 845         float areaNormal[3];
 846         // clear the vectors
 847         memset(normal3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 848         // process each vertex of each triangle and accumulate the results
 849         // use area-averaging, to make triangles with a big area have a bigger
 850         // weighting on the vertex normal than triangles with a small area
 851         // to do so, just add the 'normals' together (the bigger the area
 852         // the greater the length of the normal is
 853         element = elements;
 854         for (i = 0; i < numtriangles; i++, element += 3)
 855         {
 856                 TriangleNormal(
 857                         vertex3f + element[0] * 3,
 858                         vertex3f + element[1] * 3,
 859                         vertex3f + element[2] * 3,
 860                         areaNormal
 861                         );
 862
 863                 if (!areaweighting)
 864                         VectorNormalize(areaNormal);
 865
 866                 for (j = 0;j < 3;j++)
 867                 {
 868                         vectorNormal = normal3f + element[j] * 3;
 869                         vectorNormal[0] += areaNormal[0];
 870                         vectorNormal[1] += areaNormal[1];
 871                         vectorNormal[2] += areaNormal[2];
 872                 }
 873         }
 874         // and just normalize the accumulated vertex normal in the end
 875         vectorNormal = normal3f + 3 * firstvertex;
 876         for (i = 0; i < numvertices; i++, vectorNormal += 3)
 877                 VectorNormalize(vectorNormal);
 878 }
 879
 880 #if 0
 881 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)
 882 {
 883         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 884         // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 885         // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 886
 887         // 6 multiply, 9 subtract
 888         VectorSubtract(v1, v0, v10);
 889         VectorSubtract(v2, v0, v20);
 890         normal3f[0] = v20[1] * v10[2] - v20[2] * v10[1];
 891         normal3f[1] = v20[2] * v10[0] - v20[0] * v10[2];
 892         normal3f[2] = v20[0] * v10[1] - v20[1] * v10[0];
 893         // 12 multiply, 10 subtract
 894         tc10[1] = tc1[1] - tc0[1];
 895         tc20[1] = tc2[1] - tc0[1];
 896         svector3f[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 897         svector3f[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 898         svector3f[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 899         tc10[0] = tc1[0] - tc0[0];
 900         tc20[0] = tc2[0] - tc0[0];
 901         tvector3f[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 902         tvector3f[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 903         tvector3f[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 904         // 12 multiply, 4 add, 6 subtract
 905         f = DotProduct(svector3f, normal3f);
 906         svector3f[0] -= f * normal3f[0];
 907         svector3f[1] -= f * normal3f[1];
 908         svector3f[2] -= f * normal3f[2];
 909         f = DotProduct(tvector3f, normal3f);
 910         tvector3f[0] -= f * normal3f[0];
 911         tvector3f[1] -= f * normal3f[1];
 912         tvector3f[2] -= f * normal3f[2];
 913         // if texture is mapped the wrong way (counterclockwise), the tangents
 914         // have to be flipped, this is detected by calculating a normal from the
 915         // two tangents, and seeing if it is opposite the surface normal
 916         // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 917         CrossProduct(tvector3f, svector3f, tangentcross);
 918         if (DotProduct(tangentcross, normal3f) < 0)
 919         {
 920                 VectorNegate(svector3f, svector3f);
 921                 VectorNegate(tvector3f, tvector3f);
 922         }
 923 }
 924 #endif
 925
 926 // warning: this is a very expensive function!
 927 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)
 928 {
 929         int i, tnum;
 930         float sdir[3], tdir[3], normal[3], *sv, *tv;
 931         const float *v0, *v1, *v2, *tc0, *tc1, *tc2, *n;
 932         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 933         const int *e;
 934         // clear the vectors
 935         memset(svector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 936         memset(tvector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 937         // process each vertex of each triangle and accumulate the results
 938         for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
 939         {
 940                 v0 = vertex3f + e[0] * 3;
 941                 v1 = vertex3f + e[1] * 3;
 942                 v2 = vertex3f + e[2] * 3;
 943                 tc0 = texcoord2f + e[0] * 2;
 944                 tc1 = texcoord2f + e[1] * 2;
 945                 tc2 = texcoord2f + e[2] * 2;
 946
 947                 // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 948                 // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 949
 950                 // calculate the edge directions and surface normal
 951                 // 6 multiply, 9 subtract
 952                 VectorSubtract(v1, v0, v10);
 953                 VectorSubtract(v2, v0, v20);
 954                 normal[0] = v20[1] * v10[2] - v20[2] * v10[1];
 955                 normal[1] = v20[2] * v10[0] - v20[0] * v10[2];
 956                 normal[2] = v20[0] * v10[1] - v20[1] * v10[0];
 957
 958                 // calculate the tangents
 959                 // 12 multiply, 10 subtract
 960                 tc10[1] = tc1[1] - tc0[1];
 961                 tc20[1] = tc2[1] - tc0[1];
 962                 sdir[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 963                 sdir[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 964                 sdir[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 965                 tc10[0] = tc1[0] - tc0[0];
 966                 tc20[0] = tc2[0] - tc0[0];
 967                 tdir[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 968                 tdir[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 969                 tdir[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 970
 971                 // if texture is mapped the wrong way (counterclockwise), the tangents
 972                 // have to be flipped, this is detected by calculating a normal from the
 973                 // two tangents, and seeing if it is opposite the surface normal
 974                 // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 975                 CrossProduct(tdir, sdir, tangentcross);
 976                 if (DotProduct(tangentcross, normal) < 0)
 977                 {
 978                         VectorNegate(sdir, sdir);
 979                         VectorNegate(tdir, tdir);
 980                 }
 981
 982                 if (!areaweighting)
 983                 {
 984                         VectorNormalize(sdir);
 985                         VectorNormalize(tdir);
 986                 }
 987                 for (i = 0;i < 3;i++)
 988                 {
 989                         VectorAdd(svector3f + e[i]*3, sdir, svector3f + e[i]*3);
 990                         VectorAdd(tvector3f + e[i]*3, tdir, tvector3f + e[i]*3);
 991                 }
 992         }
 993         // make the tangents completely perpendicular to the surface normal, and
 994         // then normalize them
 995         // 16 assignments, 2 divide, 2 sqrt, 2 negates, 14 adds, 24 multiplies
 996         for (i = 0, sv = svector3f + 3 * firstvertex, tv = tvector3f + 3 * firstvertex, n = normal3f + 3 * firstvertex;i < numvertices;i++, sv += 3, tv += 3, n += 3)
 997         {
 998                 f = -DotProduct(sv, n);
 999                 VectorMA(sv, f, n, sv);
1000                 VectorNormalize(sv);
1001                 f = -DotProduct(tv, n);
1002                 VectorMA(tv, f, n, tv);
1003                 VectorNormalize(tv);
1004         }
1005 }
1006
1007 void Mod_AllocSurfMesh(mempool_t *mempool, int numvertices, int numtriangles, qboolean lightmapoffsets, qboolean vertexcolors, qboolean neighbors)
1008 {
1009         unsigned char *data;
1010         data = (unsigned char *)Mem_Alloc(mempool, numvertices * (3 + 3 + 3 + 3 + 2 + 2 + (vertexcolors ? 4 : 0)) * sizeof(float) + numvertices * (lightmapoffsets ? 1 : 0) * sizeof(int) + numtriangles * (3 + (neighbors ? 3 : 0)) * sizeof(int) + (numvertices <= 65536 ? numtriangles * sizeof(unsigned short[3]) : 0));
1011         loadmodel->surfmesh.num_vertices = numvertices;
1012         loadmodel->surfmesh.num_triangles = numtriangles;
1013         if (loadmodel->surfmesh.num_vertices)
1014         {
1015                 loadmodel->surfmesh.data_vertex3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
1016                 loadmodel->surfmesh.data_svector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
1017                 loadmodel->surfmesh.data_tvector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
1018                 loadmodel->surfmesh.data_normal3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
1019                 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
1020                 loadmodel->surfmesh.data_texcoordlightmap2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
1021                 if (vertexcolors)
1022                         loadmodel->surfmesh.data_lightmapcolor4f = (float *)data, data += sizeof(float[4]) * loadmodel->surfmesh.num_vertices;
1023                 if (lightmapoffsets)
1024                         loadmodel->surfmesh.data_lightmapoffsets = (int *)data, data += sizeof(int) * loadmodel->surfmesh.num_vertices;
1025         }
1026         if (loadmodel->surfmesh.num_triangles)
1027         {
1028                 loadmodel->surfmesh.data_element3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
1029                 if (neighbors)
1030                         loadmodel->surfmesh.data_neighbor3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
1031                 if (loadmodel->surfmesh.num_vertices <= 65536)
1032                         loadmodel->surfmesh.data_element3s = (unsigned short *)data, data += sizeof(unsigned short[3]) * loadmodel->surfmesh.num_triangles;
1033         }
1034 }
1035
1036 shadowmesh_t *Mod_ShadowMesh_Alloc(mempool_t *mempool, int maxverts, int maxtriangles, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, int light, int neighbors, int expandable)
1037 {
1038         shadowmesh_t *newmesh;
1039         unsigned char *data;
1040         int size;
1041         size = sizeof(shadowmesh_t);
1042         size += maxverts * sizeof(float[3]);
1043         if (light)
1044                 size += maxverts * sizeof(float[11]);
1045         size += maxtriangles * sizeof(int[3]);
1046         if (maxverts <= 65536)
1047                 size += maxtriangles * sizeof(unsigned short[3]);
1048         if (neighbors)
1049                 size += maxtriangles * sizeof(int[3]);
1050         if (expandable)
1051                 size += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *) + maxverts * sizeof(shadowmeshvertexhash_t);
1052         data = (unsigned char *)Mem_Alloc(mempool, size);
1053         newmesh = (shadowmesh_t *)data;data += sizeof(*newmesh);
1054         newmesh->map_diffuse = map_diffuse;
1055         newmesh->map_specular = map_specular;
1056         newmesh->map_normal = map_normal;
1057         newmesh->maxverts = maxverts;
1058         newmesh->maxtriangles = maxtriangles;
1059         newmesh->numverts = 0;
1060         newmesh->numtriangles = 0;
1061         memset(newmesh->sideoffsets, 0, sizeof(newmesh->sideoffsets));
1062         memset(newmesh->sidetotals, 0, sizeof(newmesh->sidetotals));
1063
1064         newmesh->vertex3f = (float *)data;data += maxverts * sizeof(float[3]);
1065         if (light)
1066         {
1067                 newmesh->svector3f = (float *)data;data += maxverts * sizeof(float[3]);
1068                 newmesh->tvector3f = (float *)data;data += maxverts * sizeof(float[3]);
1069                 newmesh->normal3f = (float *)data;data += maxverts * sizeof(float[3]);
1070                 newmesh->texcoord2f = (float *)data;data += maxverts * sizeof(float[2]);
1071         }
1072         newmesh->element3i = (int *)data;data += maxtriangles * sizeof(int[3]);
1073         if (neighbors)
1074         {
1075                 newmesh->neighbor3i = (int *)data;data += maxtriangles * sizeof(int[3]);
1076         }
1077         if (expandable)
1078         {
1079                 newmesh->vertexhashtable = (shadowmeshvertexhash_t **)data;data += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *);
1080                 newmesh->vertexhashentries = (shadowmeshvertexhash_t *)data;data += maxverts * sizeof(shadowmeshvertexhash_t);
1081         }
1082         if (maxverts <= 65536)
1083                 newmesh->element3s = (unsigned short *)data;data += maxtriangles * sizeof(unsigned short[3]);
1084         return newmesh;
1085 }
1086
1087 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh, int light, int neighbors)
1088 {
1089         shadowmesh_t *newmesh;
1090         newmesh = Mod_ShadowMesh_Alloc(mempool, oldmesh->numverts, oldmesh->numtriangles, oldmesh->map_diffuse, oldmesh->map_specular, oldmesh->map_normal, light, neighbors, false);
1091         newmesh->numverts = oldmesh->numverts;
1092         newmesh->numtriangles = oldmesh->numtriangles;
1093         memcpy(newmesh->sideoffsets, oldmesh->sideoffsets, sizeof(oldmesh->sideoffsets));
1094         memcpy(newmesh->sidetotals, oldmesh->sidetotals, sizeof(oldmesh->sidetotals));
1095
1096         memcpy(newmesh->vertex3f, oldmesh->vertex3f, oldmesh->numverts * sizeof(float[3]));
1097         if (newmesh->svector3f && oldmesh->svector3f)
1098         {
1099                 memcpy(newmesh->svector3f, oldmesh->svector3f, oldmesh->numverts * sizeof(float[3]));
1100                 memcpy(newmesh->tvector3f, oldmesh->tvector3f, oldmesh->numverts * sizeof(float[3]));
1101                 memcpy(newmesh->normal3f, oldmesh->normal3f, oldmesh->numverts * sizeof(float[3]));
1102                 memcpy(newmesh->texcoord2f, oldmesh->texcoord2f, oldmesh->numverts * sizeof(float[2]));
1103         }
1104         memcpy(newmesh->element3i, oldmesh->element3i, oldmesh->numtriangles * sizeof(int[3]));
1105         if (newmesh->neighbor3i && oldmesh->neighbor3i)
1106                 memcpy(newmesh->neighbor3i, oldmesh->neighbor3i, oldmesh->numtriangles * sizeof(int[3]));
1107         return newmesh;
1108 }
1109
1110 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *vertex14f)
1111 {
1112         int hashindex, vnum;
1113         shadowmeshvertexhash_t *hash;
1114         // this uses prime numbers intentionally
1115         hashindex = (unsigned int) (vertex14f[0] * 2003 + vertex14f[1] * 4001 + vertex14f[2] * 7919) % SHADOWMESHVERTEXHASH;
1116         for (hash = mesh->vertexhashtable[hashindex];hash;hash = hash->next)
1117         {
1118                 vnum = (hash - mesh->vertexhashentries);
1119                 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]))
1120                  && (mesh->svector3f == NULL || (mesh->svector3f[vnum * 3 + 0] == vertex14f[3] && mesh->svector3f[vnum * 3 + 1] == vertex14f[4] && mesh->svector3f[vnum * 3 + 2] == vertex14f[5]))
1121                  && (mesh->tvector3f == NULL || (mesh->tvector3f[vnum * 3 + 0] == vertex14f[6] && mesh->tvector3f[vnum * 3 + 1] == vertex14f[7] && mesh->tvector3f[vnum * 3 + 2] == vertex14f[8]))
1122                  && (mesh->normal3f == NULL || (mesh->normal3f[vnum * 3 + 0] == vertex14f[9] && mesh->normal3f[vnum * 3 + 1] == vertex14f[10] && mesh->normal3f[vnum * 3 + 2] == vertex14f[11]))
1123                  && (mesh->texcoord2f == NULL || (mesh->texcoord2f[vnum * 2 + 0] == vertex14f[12] && mesh->texcoord2f[vnum * 2 + 1] == vertex14f[13])))
1124                         return hash - mesh->vertexhashentries;
1125         }
1126         vnum = mesh->numverts++;
1127         hash = mesh->vertexhashentries + vnum;
1128         hash->next = mesh->vertexhashtable[hashindex];
1129         mesh->vertexhashtable[hashindex] = hash;
1130         if (mesh->vertex3f) {mesh->vertex3f[vnum * 3 + 0] = vertex14f[0];mesh->vertex3f[vnum * 3 + 1] = vertex14f[1];mesh->vertex3f[vnum * 3 + 2] = vertex14f[2];}
1131         if (mesh->svector3f) {mesh->svector3f[vnum * 3 + 0] = vertex14f[3];mesh->svector3f[vnum * 3 + 1] = vertex14f[4];mesh->svector3f[vnum * 3 + 2] = vertex14f[5];}
1132         if (mesh->tvector3f) {mesh->tvector3f[vnum * 3 + 0] = vertex14f[6];mesh->tvector3f[vnum * 3 + 1] = vertex14f[7];mesh->tvector3f[vnum * 3 + 2] = vertex14f[8];}
1133         if (mesh->normal3f) {mesh->normal3f[vnum * 3 + 0] = vertex14f[9];mesh->normal3f[vnum * 3 + 1] = vertex14f[10];mesh->normal3f[vnum * 3 + 2] = vertex14f[11];}
1134         if (mesh->texcoord2f) {mesh->texcoord2f[vnum * 2 + 0] = vertex14f[12];mesh->texcoord2f[vnum * 2 + 1] = vertex14f[13];}
1135         return vnum;
1136 }
1137
1138 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex14f)
1139 {
1140         if (mesh->numtriangles == 0)
1141         {
1142                 // set the properties on this empty mesh to be more favorable...
1143                 // (note: this case only occurs for the first triangle added to a new mesh chain)
1144                 mesh->map_diffuse = map_diffuse;
1145                 mesh->map_specular = map_specular;
1146                 mesh->map_normal = map_normal;
1147         }
1148         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)
1149         {
1150                 if (mesh->next == NULL)
1151                         mesh->next = Mod_ShadowMesh_Alloc(mempool, max(mesh->maxverts, 300), max(mesh->maxtriangles, 100), map_diffuse, map_specular, map_normal, mesh->svector3f != NULL, mesh->neighbor3i != NULL, true);
1152                 mesh = mesh->next;
1153         }
1154         mesh->element3i[mesh->numtriangles * 3 + 0] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 0);
1155         mesh->element3i[mesh->numtriangles * 3 + 1] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 1);
1156         mesh->element3i[mesh->numtriangles * 3 + 2] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 2);
1157         mesh->numtriangles++;
1158 }
1159
1160 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)
1161 {
1162         int i, j, e;
1163         float vbuf[3*14], *v;
1164         memset(vbuf, 0, sizeof(vbuf));
1165         for (i = 0;i < numtris;i++)
1166         {
1167                 for (j = 0, v = vbuf;j < 3;j++, v += 14)
1168                 {
1169                         e = *element3i++;
1170                         if (vertex3f)
1171                         {
1172                                 v[0] = vertex3f[e * 3 + 0];
1173                                 v[1] = vertex3f[e * 3 + 1];
1174                                 v[2] = vertex3f[e * 3 + 2];
1175                         }
1176                         if (svector3f)
1177                         {
1178                                 v[3] = svector3f[e * 3 + 0];
1179                                 v[4] = svector3f[e * 3 + 1];
1180                                 v[5] = svector3f[e * 3 + 2];
1181                         }
1182                         if (tvector3f)
1183                         {
1184                                 v[6] = tvector3f[e * 3 + 0];
1185                                 v[7] = tvector3f[e * 3 + 1];
1186                                 v[8] = tvector3f[e * 3 + 2];
1187                         }
1188                         if (normal3f)
1189                         {
1190                                 v[9] = normal3f[e * 3 + 0];
1191                                 v[10] = normal3f[e * 3 + 1];
1192                                 v[11] = normal3f[e * 3 + 2];
1193                         }
1194                         if (texcoord2f)
1195                         {
1196                                 v[12] = texcoord2f[e * 2 + 0];
1197                                 v[13] = texcoord2f[e * 2 + 1];
1198                         }
1199                 }
1200                 Mod_ShadowMesh_AddTriangle(mempool, mesh, map_diffuse, map_specular, map_normal, vbuf);
1201         }
1202
1203         // the triangle calculation can take a while, so let's do a keepalive here
1204         CL_KeepaliveMessage(false);
1205 }
1206
1207 shadowmesh_t *Mod_ShadowMesh_Begin(mempool_t *mempool, int maxverts, int maxtriangles, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, int light, int neighbors, int expandable)
1208 {
1209         // the preparation before shadow mesh initialization can take a while, so let's do a keepalive here
1210         CL_KeepaliveMessage(false);
1211
1212         return Mod_ShadowMesh_Alloc(mempool, maxverts, maxtriangles, map_diffuse, map_specular, map_normal, light, neighbors, expandable);
1213 }
1214
1215 static void Mod_ShadowMesh_CreateVBOs(shadowmesh_t *mesh, mempool_t *mempool)
1216 {
1217         if (!mesh->numverts)
1218                 return;
1219
1220         // build r_vertexmesh_t array
1221         // (compressed interleaved array for D3D)
1222         if (!mesh->vertexmesh && mesh->texcoord2f && vid.useinterleavedarrays)
1223         {
1224                 int vertexindex;
1225                 int numvertices = mesh->numverts;
1226                 r_vertexmesh_t *vertexmesh;
1227                 mesh->vertexmesh = vertexmesh = (r_vertexmesh_t*)Mem_Alloc(mempool, numvertices * sizeof(*mesh->vertexmesh));
1228                 for (vertexindex = 0;vertexindex < numvertices;vertexindex++, vertexmesh++)
1229                 {
1230                         VectorCopy(mesh->vertex3f + 3*vertexindex, vertexmesh->vertex3f);
1231                         VectorScale(mesh->svector3f + 3*vertexindex, 1.0f, vertexmesh->svector3f);
1232                         VectorScale(mesh->tvector3f + 3*vertexindex, 1.0f, vertexmesh->tvector3f);
1233                         VectorScale(mesh->normal3f + 3*vertexindex, 1.0f, vertexmesh->normal3f);
1234                         Vector2Copy(mesh->texcoord2f + 2*vertexindex, vertexmesh->texcoordtexture2f);
1235                 }
1236         }
1237
1238         // upload r_vertexmesh_t array as a buffer
1239         if (mesh->vertexmesh && !mesh->vertexmeshbuffer)
1240                 mesh->vertexmeshbuffer = R_Mesh_CreateMeshBuffer(mesh->vertexmesh, mesh->numverts * sizeof(*mesh->vertexmesh), loadmodel->name, false, false, false);
1241
1242         // upload vertex3f array as a buffer
1243         if (mesh->vertex3f && !mesh->vertex3fbuffer)
1244                 mesh->vertex3fbuffer = R_Mesh_CreateMeshBuffer(mesh->vertex3f, mesh->numverts * sizeof(float[3]), loadmodel->name, false, false, false);
1245
1246         // upload short indices as a buffer
1247         if (mesh->element3s && !mesh->element3s_indexbuffer)
1248                 mesh->element3s_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3s, mesh->numtriangles * sizeof(short[3]), loadmodel->name, true, false, true);
1249
1250         // upload int indices as a buffer
1251         if (mesh->element3i && !mesh->element3i_indexbuffer && !mesh->element3s)
1252                 mesh->element3i_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3i, mesh->numtriangles * sizeof(int[3]), loadmodel->name, true, false, false);
1253
1254         // vertex buffer is several arrays and we put them in the same buffer
1255         //
1256         // is this wise?  the texcoordtexture2f array is used with dynamic
1257         // vertex/svector/tvector/normal when rendering animated models, on the
1258         // other hand animated models don't use a lot of vertices anyway...
1259         if (!mesh->vbo_vertexbuffer && !vid.useinterleavedarrays)
1260         {
1261                 size_t size;
1262                 unsigned char *mem;
1263                 size = 0;
1264                 mesh->vbooffset_vertex3f           = size;if (mesh->vertex3f          ) size += mesh->numverts * sizeof(float[3]);
1265                 mesh->vbooffset_svector3f          = size;if (mesh->svector3f         ) size += mesh->numverts * sizeof(float[3]);
1266                 mesh->vbooffset_tvector3f          = size;if (mesh->tvector3f         ) size += mesh->numverts * sizeof(float[3]);
1267                 mesh->vbooffset_normal3f           = size;if (mesh->normal3f          ) size += mesh->numverts * sizeof(float[3]);
1268                 mesh->vbooffset_texcoord2f         = size;if (mesh->texcoord2f        ) size += mesh->numverts * sizeof(float[2]);
1269                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
1270                 if (mesh->vertex3f          ) memcpy(mem + mesh->vbooffset_vertex3f          , mesh->vertex3f          , mesh->numverts * sizeof(float[3]));
1271                 if (mesh->svector3f         ) memcpy(mem + mesh->vbooffset_svector3f         , mesh->svector3f         , mesh->numverts * sizeof(float[3]));
1272                 if (mesh->tvector3f         ) memcpy(mem + mesh->vbooffset_tvector3f         , mesh->tvector3f         , mesh->numverts * sizeof(float[3]));
1273                 if (mesh->normal3f          ) memcpy(mem + mesh->vbooffset_normal3f          , mesh->normal3f          , mesh->numverts * sizeof(float[3]));
1274                 if (mesh->texcoord2f        ) memcpy(mem + mesh->vbooffset_texcoord2f        , mesh->texcoord2f        , mesh->numverts * sizeof(float[2]));
1275                 mesh->vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, "shadowmesh", false, false, false);
1276                 Mem_Free(mem);
1277         }
1278 }
1279
1280 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh, qboolean light, qboolean neighbors, qboolean createvbo)
1281 {
1282         shadowmesh_t *mesh, *newmesh, *nextmesh;
1283         // reallocate meshs to conserve space
1284         for (mesh = firstmesh, firstmesh = NULL;mesh;mesh = nextmesh)
1285         {
1286                 nextmesh = mesh->next;
1287                 if (mesh->numverts >= 3 && mesh->numtriangles >= 1)
1288                 {
1289                         newmesh = Mod_ShadowMesh_ReAlloc(mempool, mesh, light, neighbors);
1290                         newmesh->next = firstmesh;
1291                         firstmesh = newmesh;
1292                         if (newmesh->element3s)
1293                         {
1294                                 int i;
1295                                 for (i = 0;i < newmesh->numtriangles*3;i++)
1296                                         newmesh->element3s[i] = newmesh->element3i[i];
1297                         }
1298                         if (createvbo)
1299                                 Mod_ShadowMesh_CreateVBOs(newmesh, mempool);
1300                 }
1301                 Mem_Free(mesh);
1302         }
1303
1304         // this can take a while, so let's do a keepalive here
1305         CL_KeepaliveMessage(false);
1306
1307         return firstmesh;
1308 }
1309
1310 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius)
1311 {
1312         int i;
1313         shadowmesh_t *mesh;
1314         vec3_t nmins, nmaxs, ncenter, temp;
1315         float nradius2, dist2, *v;
1316         VectorClear(nmins);
1317         VectorClear(nmaxs);
1318         // calculate bbox
1319         for (mesh = firstmesh;mesh;mesh = mesh->next)
1320         {
1321                 if (mesh == firstmesh)
1322                 {
1323                         VectorCopy(mesh->vertex3f, nmins);
1324                         VectorCopy(mesh->vertex3f, nmaxs);
1325                 }
1326                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1327                 {
1328                         if (nmins[0] > v[0]) nmins[0] = v[0];if (nmaxs[0] < v[0]) nmaxs[0] = v[0];
1329                         if (nmins[1] > v[1]) nmins[1] = v[1];if (nmaxs[1] < v[1]) nmaxs[1] = v[1];
1330                         if (nmins[2] > v[2]) nmins[2] = v[2];if (nmaxs[2] < v[2]) nmaxs[2] = v[2];
1331                 }
1332         }
1333         // calculate center and radius
1334         ncenter[0] = (nmins[0] + nmaxs[0]) * 0.5f;
1335         ncenter[1] = (nmins[1] + nmaxs[1]) * 0.5f;
1336         ncenter[2] = (nmins[2] + nmaxs[2]) * 0.5f;
1337         nradius2 = 0;
1338         for (mesh = firstmesh;mesh;mesh = mesh->next)
1339         {
1340                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1341                 {
1342                         VectorSubtract(v, ncenter, temp);
1343                         dist2 = DotProduct(temp, temp);
1344                         if (nradius2 < dist2)
1345                                 nradius2 = dist2;
1346                 }
1347         }
1348         // return data
1349         if (mins)
1350                 VectorCopy(nmins, mins);
1351         if (maxs)
1352                 VectorCopy(nmaxs, maxs);
1353         if (center)
1354                 VectorCopy(ncenter, center);
1355         if (radius)
1356                 *radius = sqrt(nradius2);
1357 }
1358
1359 void Mod_ShadowMesh_Free(shadowmesh_t *mesh)
1360 {
1361         shadowmesh_t *nextmesh;
1362         for (;mesh;mesh = nextmesh)
1363         {
1364                 if (mesh->vertex3fbuffer)
1365                         R_Mesh_DestroyMeshBuffer(mesh->vertex3fbuffer);
1366                 if (mesh->vertexmeshbuffer)
1367                         R_Mesh_DestroyMeshBuffer(mesh->vertexmeshbuffer);
1368                 if (mesh->element3i_indexbuffer)
1369                         R_Mesh_DestroyMeshBuffer(mesh->element3i_indexbuffer);
1370                 if (mesh->element3s_indexbuffer)
1371                         R_Mesh_DestroyMeshBuffer(mesh->element3s_indexbuffer);
1372                 if (mesh->vbo_vertexbuffer)
1373                         R_Mesh_DestroyMeshBuffer(mesh->vbo_vertexbuffer);
1374                 nextmesh = mesh->next;
1375                 Mem_Free(mesh);
1376         }
1377 }
1378
1379 void Mod_CreateCollisionMesh(dp_model_t *mod)
1380 {
1381         int k, numcollisionmeshtriangles;
1382         qboolean usesinglecollisionmesh = false;
1383         const msurface_t *surface = NULL;
1384
1385         mempool_t *mempool = mod->mempool;
1386         if (!mempool && mod->brush.parentmodel)
1387                 mempool = mod->brush.parentmodel->mempool;
1388         // make a single combined collision mesh for physics engine use
1389         // TODO rewrite this to use the collision brushes as source, to fix issues with e.g. common/caulk which creates no drawsurface
1390         numcollisionmeshtriangles = 0;
1391         for (k = 0;k < mod->nummodelsurfaces;k++)
1392         {
1393                 surface = mod->data_surfaces + mod->firstmodelsurface + k;
1394                 if (!strcmp(surface->texture->name, "collision") || !strcmp(surface->texture->name, "collisionconvex")) // found collision mesh
1395                 {
1396                         usesinglecollisionmesh = true;
1397                         numcollisionmeshtriangles = surface->num_triangles;
1398                         break;
1399                 }
1400                 if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1401                         continue;
1402                 numcollisionmeshtriangles += surface->num_triangles;
1403         }
1404         mod->brush.collisionmesh = Mod_ShadowMesh_Begin(mempool, numcollisionmeshtriangles * 3, numcollisionmeshtriangles, NULL, NULL, NULL, false, false, true);
1405         if (usesinglecollisionmesh)
1406                 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));
1407         else
1408         {
1409                 for (k = 0;k < mod->nummodelsurfaces;k++)
1410                 {
1411                         surface = mod->data_surfaces + mod->firstmodelsurface + k;
1412                         if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1413                                 continue;
1414                         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));
1415                 }
1416         }
1417         mod->brush.collisionmesh = Mod_ShadowMesh_Finish(mempool, mod->brush.collisionmesh, false, false, false);
1418 }
1419
1420 #if 0
1421 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)
1422 {
1423         float v[3], tc[3];
1424         v[0] = ix;
1425         v[1] = iy;
1426         if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
1427                 v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
1428         else
1429                 v[2] = 0;
1430         Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
1431         Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
1432         texcoord2f[0] = tc[0];
1433         texcoord2f[1] = tc[1];
1434 }
1435
1436 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)
1437 {
1438         float vup[3], vdown[3], vleft[3], vright[3];
1439         float tcup[3], tcdown[3], tcleft[3], tcright[3];
1440         float sv[3], tv[3], nl[3];
1441         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
1442         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
1443         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
1444         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
1445         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
1446         Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
1447         Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
1448         VectorAdd(svector3f, sv, svector3f);
1449         VectorAdd(tvector3f, tv, tvector3f);
1450         VectorAdd(normal3f, nl, normal3f);
1451         Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
1452         VectorAdd(svector3f, sv, svector3f);
1453         VectorAdd(tvector3f, tv, tvector3f);
1454         VectorAdd(normal3f, nl, normal3f);
1455         Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
1456         VectorAdd(svector3f, sv, svector3f);
1457         VectorAdd(tvector3f, tv, tvector3f);
1458         VectorAdd(normal3f, nl, normal3f);
1459 }
1460
1461 static void Mod_ConstructTerrainPatchFromBGRA(const unsigned char *imagepixels, int imagewidth, int imageheight, int x1, int y1, int width, int height, int *element3i, int *neighbor3i, float *vertex3f, float *svector3f, float *tvector3f, float *normal3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
1462 {
1463         int x, y, ix, iy, *e;
1464         e = element3i;
1465         for (y = 0;y < height;y++)
1466         {
1467                 for (x = 0;x < width;x++)
1468                 {
1469                         e[0] = (y + 1) * (width + 1) + (x + 0);
1470                         e[1] = (y + 0) * (width + 1) + (x + 0);
1471                         e[2] = (y + 1) * (width + 1) + (x + 1);
1472                         e[3] = (y + 0) * (width + 1) + (x + 0);
1473                         e[4] = (y + 0) * (width + 1) + (x + 1);
1474                         e[5] = (y + 1) * (width + 1) + (x + 1);
1475                         e += 6;
1476                 }
1477         }
1478         Mod_BuildTriangleNeighbors(neighbor3i, element3i, width*height*2);
1479         for (y = 0, iy = y1;y < height + 1;y++, iy++)
1480                 for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
1481                         Mod_GetTerrainVertexFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
1482 }
1483 #endif
1484
1485 #if 0
1486 void Mod_Terrain_SurfaceRecurseChunk(dp_model_t *model, int stepsize, int x, int y)
1487 {
1488         float mins[3];
1489         float maxs[3];
1490         float chunkwidth = min(stepsize, model->terrain.width - 1 - x);
1491         float chunkheight = min(stepsize, model->terrain.height - 1 - y);
1492         float viewvector[3];
1493         unsigned int firstvertex;
1494         unsigned int *e;
1495         float *v;
1496         if (chunkwidth < 2 || chunkheight < 2)
1497                 return;
1498         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]);
1499         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]);
1500         viewvector[0] = bound(mins[0], localvieworigin, maxs[0]) - model->terrain.vieworigin[0];
1501         viewvector[1] = bound(mins[1], localvieworigin, maxs[1]) - model->terrain.vieworigin[1];
1502         viewvector[2] = bound(mins[2], localvieworigin, maxs[2]) - model->terrain.vieworigin[2];
1503         if (stepsize > 1 && VectorLength(viewvector) < stepsize*model->terrain.scale[0]*r_terrain_lodscale.value)
1504         {
1505                 // too close for this stepsize, emit as 4 chunks instead
1506                 stepsize /= 2;
1507                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y);
1508                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y);
1509                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y+stepsize);
1510                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y+stepsize);
1511                 return;
1512         }
1513         // emit the geometry at stepsize into our vertex buffer / index buffer
1514         // we add two columns and two rows for skirt
1515         outwidth = chunkwidth+2;
1516         outheight = chunkheight+2;
1517         outwidth2 = outwidth-1;
1518         outheight2 = outheight-1;
1519         outwidth3 = outwidth+1;
1520         outheight3 = outheight+1;
1521         firstvertex = numvertices;
1522         e = model->terrain.element3i + numtriangles;
1523         numtriangles += chunkwidth*chunkheight*2+chunkwidth*2*2+chunkheight*2*2;
1524         v = model->terrain.vertex3f + numvertices;
1525         numvertices += (chunkwidth+1)*(chunkheight+1)+(chunkwidth+1)*2+(chunkheight+1)*2;
1526         // emit the triangles (note: the skirt is treated as two extra rows and two extra columns)
1527         for (ty = 0;ty < outheight;ty++)
1528         {
1529                 for (tx = 0;tx < outwidth;tx++)
1530                 {
1531                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1532                         *e++ = firstvertex + (ty  )*outwidth3+(tx+1);
1533                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1534                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1535                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1536                         *e++ = firstvertex + (ty+1)*outwidth3+(tx  );
1537                 }
1538         }
1539         // TODO: emit surface vertices (x+tx*stepsize, y+ty*stepsize)
1540         for (ty = 0;ty <= outheight;ty++)
1541         {
1542                 skirtrow = ty == 0 || ty == outheight;
1543                 ry = y+bound(1, ty, outheight)*stepsize;
1544                 for (tx = 0;tx <= outwidth;tx++)
1545                 {
1546                         skirt = skirtrow || tx == 0 || tx == outwidth;
1547                         rx = x+bound(1, tx, outwidth)*stepsize;
1548                         v[0] = rx*scale[0];
1549                         v[1] = ry*scale[1];
1550                         v[2] = heightmap[ry*terrainwidth+rx]*scale[2];
1551                         v += 3;
1552                 }
1553         }
1554         // TODO: emit skirt vertices
1555 }
1556
1557 void Mod_Terrain_UpdateSurfacesForViewOrigin(dp_model_t *model)
1558 {
1559         for (y = 0;y < model->terrain.size[1];y += model->terrain.
1560         Mod_Terrain_SurfaceRecurseChunk(model, model->terrain.maxstepsize, x, y);
1561         Mod_Terrain_BuildChunk(model,
1562 }
1563 #endif
1564
1565 static int Mod_LoadQ3Shaders_EnumerateWaveFunc(const char *s)
1566 {
1567         int offset = 0;
1568         if (!strncasecmp(s, "user", 4)) // parse stuff like "user1sin", always user<n>func
1569         {
1570                 offset = bound(0, s[4] - '0', 9);
1571                 offset = (offset + 1) << Q3WAVEFUNC_USER_SHIFT;
1572                 s += 4;
1573                 if(*s)
1574                         ++s;
1575         }
1576         if (!strcasecmp(s, "sin"))             return offset | Q3WAVEFUNC_SIN;
1577         if (!strcasecmp(s, "square"))          return offset | Q3WAVEFUNC_SQUARE;
1578         if (!strcasecmp(s, "triangle"))        return offset | Q3WAVEFUNC_TRIANGLE;
1579         if (!strcasecmp(s, "sawtooth"))        return offset | Q3WAVEFUNC_SAWTOOTH;
1580         if (!strcasecmp(s, "inversesawtooth")) return offset | Q3WAVEFUNC_INVERSESAWTOOTH;
1581         if (!strcasecmp(s, "noise"))           return offset | Q3WAVEFUNC_NOISE;
1582         if (!strcasecmp(s, "none"))            return offset | Q3WAVEFUNC_NONE;
1583         Con_DPrintf("Mod_LoadQ3Shaders: unknown wavefunc %s\n", s);
1584         return offset | Q3WAVEFUNC_NONE;
1585 }
1586
1587 void Mod_FreeQ3Shaders(void)
1588 {
1589         Mem_FreePool(&q3shaders_mem);
1590 }
1591
1592 static void Q3Shader_AddToHash (q3shaderinfo_t* shader)
1593 {
1594         unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)shader->name, strlen (shader->name));
1595         q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1596         q3shader_hash_entry_t* lastEntry = NULL;
1597         while (entry != NULL)
1598         {
1599                 if (strcasecmp (entry->shader.name, shader->name) == 0)
1600                 {
1601                         // redeclaration
1602                         if(shader->dpshaderkill)
1603                         {
1604                                 // killed shader is a redeclarion? we can safely ignore it
1605                                 return;
1606                         }
1607                         else if(entry->shader.dpshaderkill)
1608                         {
1609                                 // replace the old shader!
1610                                 // this will skip the entry allocating part
1611                                 // below and just replace the shader
1612                                 break;
1613                         }
1614                         else
1615                         {
1616                                 unsigned char *start, *end, *start2;
1617                                 start = (unsigned char *) (&shader->Q3SHADERINFO_COMPARE_START);
1618                                 end = ((unsigned char *) (&shader->Q3SHADERINFO_COMPARE_END)) + sizeof(shader->Q3SHADERINFO_COMPARE_END);
1619                                 start2 = (unsigned char *) (&entry->shader.Q3SHADERINFO_COMPARE_START);
1620                                 if(memcmp(start, start2, end - start))
1621                                         Con_DPrintf("Shader '%s' already defined, ignoring mismatching redeclaration\n", shader->name);
1622                                 else
1623                                         Con_DPrintf("Shader '%s' already defined\n", shader->name);
1624                                 return;
1625                         }
1626                 }
1627                 lastEntry = entry;
1628                 entry = entry->chain;
1629         }
1630         if (entry == NULL)
1631         {
1632                 if (lastEntry->shader.name[0] != 0)
1633                 {
1634                         /* Add to chain */
1635                         q3shader_hash_entry_t* newEntry = (q3shader_hash_entry_t*)
1636                           Mem_ExpandableArray_AllocRecord (&q3shader_data->hash_entries);
1637
1638                         while (lastEntry->chain != NULL) lastEntry = lastEntry->chain;
1639                         lastEntry->chain = newEntry;
1640                         newEntry->chain = NULL;
1641                         lastEntry = newEntry;
1642                 }
1643                 /* else: head of chain, in hash entry array */
1644                 entry = lastEntry;
1645         }
1646         memcpy (&entry->shader, shader, sizeof (q3shaderinfo_t));
1647 }
1648
1649 extern cvar_t mod_noshader_default_offsetmapping;
1650 extern cvar_t mod_q3shader_default_offsetmapping;
1651 extern cvar_t mod_q3shader_default_offsetmapping_scale;
1652 extern cvar_t mod_q3shader_default_offsetmapping_bias;
1653 extern cvar_t mod_q3shader_default_polygonoffset;
1654 extern cvar_t mod_q3shader_default_polygonfactor;
1655 extern cvar_t mod_q3shader_force_addalpha;
1656 extern cvar_t mod_q3shader_force_terrain_alphaflag;
1657 void Mod_LoadQ3Shaders(void)
1658 {
1659         int j;
1660         int fileindex;
1661         fssearch_t *search;
1662         char *f;
1663         const char *text;
1664         q3shaderinfo_t shader;
1665         q3shaderinfo_layer_t *layer;
1666         int numparameters;
1667         char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
1668         char *custsurfaceparmnames[256]; // VorteX: q3map2 has 64 but well, someone will need more
1669         unsigned long custsurfaceflags[256];
1670         int numcustsurfaceflags;
1671         qboolean dpshaderkill;
1672
1673         Mod_FreeQ3Shaders();
1674
1675         q3shaders_mem = Mem_AllocPool("q3shaders", 0, NULL);
1676         q3shader_data = (q3shader_data_t*)Mem_Alloc (q3shaders_mem,
1677                 sizeof (q3shader_data_t));
1678         Mem_ExpandableArray_NewArray (&q3shader_data->hash_entries,
1679                 q3shaders_mem, sizeof (q3shader_hash_entry_t), 256);
1680         Mem_ExpandableArray_NewArray (&q3shader_data->char_ptrs,
1681                 q3shaders_mem, sizeof (char**), 256);
1682
1683         // parse custinfoparms.txt
1684         numcustsurfaceflags = 0;
1685         if ((text = f = (char *)FS_LoadFile("scripts/custinfoparms.txt", tempmempool, false, NULL)) != NULL)
1686         {
1687                 if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1688                         Con_DPrintf("scripts/custinfoparms.txt: contentflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1689                 else
1690                 {
1691                         while (COM_ParseToken_QuakeC(&text, false))
1692                                 if (!strcasecmp(com_token, "}"))
1693                                         break;
1694                         // custom surfaceflags section
1695                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1696                                 Con_DPrintf("scripts/custinfoparms.txt: surfaceflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1697                         else
1698                         {
1699                                 while(COM_ParseToken_QuakeC(&text, false))
1700                                 {
1701                                         if (!strcasecmp(com_token, "}"))
1702                                                 break;
1703                                         // register surfaceflag
1704                                         if (numcustsurfaceflags >= 256)
1705                                         {
1706                                                 Con_Printf("scripts/custinfoparms.txt: surfaceflags section parsing error - max 256 surfaceflags exceeded\n");
1707                                                 break;
1708                                         }
1709                                         // name
1710                                         j = strlen(com_token)+1;
1711                                         custsurfaceparmnames[numcustsurfaceflags] = (char *)Mem_Alloc(tempmempool, j);
1712                                         strlcpy(custsurfaceparmnames[numcustsurfaceflags], com_token, j+1);
1713                                         // value
1714                                         if (COM_ParseToken_QuakeC(&text, false))
1715                                                 custsurfaceflags[numcustsurfaceflags] = strtol(com_token, NULL, 0);
1716                                         else
1717                                                 custsurfaceflags[numcustsurfaceflags] = 0;
1718                                         numcustsurfaceflags++;
1719                                 }
1720                         }
1721                 }
1722                 Mem_Free(f);
1723         }
1724
1725         // parse shaders
1726         search = FS_Search("scripts/*.shader", true, false);
1727         if (!search)
1728                 return;
1729         for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
1730         {
1731                 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
1732                 if (!f)
1733                         continue;
1734                 while (COM_ParseToken_QuakeC(&text, false))
1735                 {
1736                         memset (&shader, 0, sizeof(shader));
1737                         shader.reflectmin = 0;
1738                         shader.reflectmax = 1;
1739                         shader.refractfactor = 1;
1740                         Vector4Set(shader.refractcolor4f, 1, 1, 1, 1);
1741                         shader.reflectfactor = 1;
1742                         Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
1743                         shader.r_water_wateralpha = 1;
1744                         shader.offsetmapping = (mod_q3shader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
1745                         shader.offsetscale = mod_q3shader_default_offsetmapping_scale.value;
1746                         shader.offsetbias = mod_q3shader_default_offsetmapping_bias.value;
1747                         shader.specularscalemod = 1;
1748                         shader.specularpowermod = 1;
1749                         shader.biaspolygonoffset = mod_q3shader_default_polygonoffset.value;
1750                         shader.biaspolygonfactor = mod_q3shader_default_polygonfactor.value;
1751                         shader.transparentsort = TRANSPARENTSORT_DISTANCE;
1752
1753                         strlcpy(shader.name, com_token, sizeof(shader.name));
1754                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1755                         {
1756                                 Con_DPrintf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
1757                                 break;
1758                         }
1759                         while (COM_ParseToken_QuakeC(&text, false))
1760                         {
1761                                 if (!strcasecmp(com_token, "}"))
1762                                         break;
1763                                 if (!strcasecmp(com_token, "{"))
1764                                 {
1765                                         static q3shaderinfo_layer_t dummy;
1766                                         if (shader.numlayers < Q3SHADER_MAXLAYERS)
1767                                         {
1768                                                 layer = shader.layers + shader.numlayers++;
1769                                         }
1770                                         else
1771                                         {
1772                                                 // parse and process it anyway, just don't store it (so a map $lightmap or such stuff still is found)
1773                                                 memset(&dummy, 0, sizeof(dummy));
1774                                                 layer = &dummy;
1775                                         }
1776                                         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1777                                         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1778                                         layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1779                                         layer->blendfunc[0] = GL_ONE;
1780                                         layer->blendfunc[1] = GL_ZERO;
1781                                         while (COM_ParseToken_QuakeC(&text, false))
1782                                         {
1783                                                 if (!strcasecmp(com_token, "}"))
1784                                                         break;
1785                                                 if (!strcasecmp(com_token, "\n"))
1786                                                         continue;
1787                                                 numparameters = 0;
1788                                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1789                                                 {
1790                                                         if (j < TEXTURE_MAXFRAMES + 4)
1791                                                         {
1792                                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1793                                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1794                                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1795                                                                 else
1796                                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1797                                                                 numparameters = j + 1;
1798                                                         }
1799                                                         if (!COM_ParseToken_QuakeC(&text, true))
1800                                                                 break;
1801                                                 }
1802                                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1803                                                 //      parameter[j][0] = 0;
1804                                                 if (developer_insane.integer)
1805                                                 {
1806                                                         Con_DPrintf("%s %i: ", shader.name, shader.numlayers - 1);
1807                                                         for (j = 0;j < numparameters;j++)
1808                                                                 Con_DPrintf(" %s", parameter[j]);
1809                                                         Con_DPrint("\n");
1810                                                 }
1811                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
1812                                                 {
1813                                                         if (numparameters == 2)
1814                                                         {
1815                                                                 if (!strcasecmp(parameter[1], "add"))
1816                                                                 {
1817                                                                         layer->blendfunc[0] = GL_ONE;
1818                                                                         layer->blendfunc[1] = GL_ONE;
1819                                                                 }
1820                                                                 else if (!strcasecmp(parameter[1], "addalpha"))
1821                                                                 {
1822                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1823                                                                         layer->blendfunc[1] = GL_ONE;
1824                                                                 }
1825                                                                 else if (!strcasecmp(parameter[1], "filter"))
1826                                                                 {
1827                                                                         layer->blendfunc[0] = GL_DST_COLOR;
1828                                                                         layer->blendfunc[1] = GL_ZERO;
1829                                                                 }
1830                                                                 else if (!strcasecmp(parameter[1], "blend"))
1831                                                                 {
1832                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1833                                                                         layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
1834                                                                 }
1835                                                         }
1836                                                         else if (numparameters == 3)
1837                                                         {
1838                                                                 int k;
1839                                                                 for (k = 0;k < 2;k++)
1840                                                                 {
1841                                                                         if (!strcasecmp(parameter[k+1], "GL_ONE"))
1842                                                                                 layer->blendfunc[k] = GL_ONE;
1843                                                                         else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
1844                                                                                 layer->blendfunc[k] = GL_ZERO;
1845                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
1846                                                                                 layer->blendfunc[k] = GL_SRC_COLOR;
1847                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
1848                                                                                 layer->blendfunc[k] = GL_SRC_ALPHA;
1849                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
1850                                                                                 layer->blendfunc[k] = GL_DST_COLOR;
1851                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
1852                                                                                 layer->blendfunc[k] = GL_DST_ALPHA;
1853                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
1854                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
1855                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
1856                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
1857                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
1858                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
1859                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
1860                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1861                                                                         else
1862                                                                                 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
1863                                                                 }
1864                                                         }
1865                                                 }
1866                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
1867                                                         layer->alphatest = true;
1868                                                 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
1869                                                 {
1870                                                         if (!strcasecmp(parameter[0], "clampmap"))
1871                                                                 layer->clampmap = true;
1872                                                         layer->numframes = 1;
1873                                                         layer->framerate = 1;
1874                                                         layer->texturename = (char**)Mem_ExpandableArray_AllocRecord (
1875                                                                 &q3shader_data->char_ptrs);
1876                                                         layer->texturename[0] = Mem_strdup (q3shaders_mem, parameter[1]);
1877                                                         if (!strcasecmp(parameter[1], "$lightmap"))
1878                                                                 shader.lighting = true;
1879                                                 }
1880                                                 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
1881                                                 {
1882                                                         int i;
1883                                                         layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
1884                                                         layer->framerate = atof(parameter[1]);
1885                                                         layer->texturename = (char **) Mem_Alloc (q3shaders_mem, sizeof (char*) * layer->numframes);
1886                                                         for (i = 0;i < layer->numframes;i++)
1887                                                                 layer->texturename[i] = Mem_strdup (q3shaders_mem, parameter[i + 2]);
1888                                                 }
1889                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen"))
1890                                                 {
1891                                                         int i;
1892                                                         for (i = 0;i < numparameters - 2 && i < Q3RGBGEN_MAXPARMS;i++)
1893                                                                 layer->rgbgen.parms[i] = atof(parameter[i+2]);
1894                                                              if (!strcasecmp(parameter[1], "identity"))         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1895                                                         else if (!strcasecmp(parameter[1], "const"))            layer->rgbgen.rgbgen = Q3RGBGEN_CONST;
1896                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->rgbgen.rgbgen = Q3RGBGEN_ENTITY;
1897                                                         else if (!strcasecmp(parameter[1], "exactvertex"))      layer->rgbgen.rgbgen = Q3RGBGEN_EXACTVERTEX;
1898                                                         else if (!strcasecmp(parameter[1], "identitylighting")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITYLIGHTING;
1899                                                         else if (!strcasecmp(parameter[1], "lightingdiffuse"))  layer->rgbgen.rgbgen = Q3RGBGEN_LIGHTINGDIFFUSE;
1900                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSENTITY;
1901                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSVERTEX;
1902                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->rgbgen.rgbgen = Q3RGBGEN_VERTEX;
1903                                                         else if (!strcasecmp(parameter[1], "wave"))
1904                                                         {
1905                                                                 layer->rgbgen.rgbgen = Q3RGBGEN_WAVE;
1906                                                                 layer->rgbgen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1907                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1908                                                                         layer->rgbgen.waveparms[i] = atof(parameter[i+3]);
1909                                                         }
1910                                                         else Con_DPrintf("%s parsing warning: unknown rgbgen %s\n", search->filenames[fileindex], parameter[1]);
1911                                                 }
1912                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen"))
1913                                                 {
1914                                                         int i;
1915                                                         for (i = 0;i < numparameters - 2 && i < Q3ALPHAGEN_MAXPARMS;i++)
1916                                                                 layer->alphagen.parms[i] = atof(parameter[i+2]);
1917                                                              if (!strcasecmp(parameter[1], "identity"))         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1918                                                         else if (!strcasecmp(parameter[1], "const"))            layer->alphagen.alphagen = Q3ALPHAGEN_CONST;
1919                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->alphagen.alphagen = Q3ALPHAGEN_ENTITY;
1920                                                         else if (!strcasecmp(parameter[1], "lightingspecular")) layer->alphagen.alphagen = Q3ALPHAGEN_LIGHTINGSPECULAR;
1921                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSENTITY;
1922                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSVERTEX;
1923                                                         else if (!strcasecmp(parameter[1], "portal"))           layer->alphagen.alphagen = Q3ALPHAGEN_PORTAL;
1924                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->alphagen.alphagen = Q3ALPHAGEN_VERTEX;
1925                                                         else if (!strcasecmp(parameter[1], "wave"))
1926                                                         {
1927                                                                 layer->alphagen.alphagen = Q3ALPHAGEN_WAVE;
1928                                                                 layer->alphagen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1929                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1930                                                                         layer->alphagen.waveparms[i] = atof(parameter[i+3]);
1931                                                         }
1932                                                         else Con_DPrintf("%s parsing warning: unknown alphagen %s\n", search->filenames[fileindex], parameter[1]);
1933                                                 }
1934                                                 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "texgen") || !strcasecmp(parameter[0], "tcgen")))
1935                                                 {
1936                                                         int i;
1937                                                         // observed values: tcgen environment
1938                                                         // no other values have been observed in real shaders
1939                                                         for (i = 0;i < numparameters - 2 && i < Q3TCGEN_MAXPARMS;i++)
1940                                                                 layer->tcgen.parms[i] = atof(parameter[i+2]);
1941                                                              if (!strcasecmp(parameter[1], "base"))        layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1942                                                         else if (!strcasecmp(parameter[1], "texture"))     layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1943                                                         else if (!strcasecmp(parameter[1], "environment")) layer->tcgen.tcgen = Q3TCGEN_ENVIRONMENT;
1944                                                         else if (!strcasecmp(parameter[1], "lightmap"))    layer->tcgen.tcgen = Q3TCGEN_LIGHTMAP;
1945                                                         else if (!strcasecmp(parameter[1], "vector"))      layer->tcgen.tcgen = Q3TCGEN_VECTOR;
1946                                                         else Con_DPrintf("%s parsing warning: unknown tcgen mode %s\n", search->filenames[fileindex], parameter[1]);
1947                                                 }
1948                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "tcmod"))
1949                                                 {
1950                                                         int i, tcmodindex;
1951                                                         // observed values:
1952                                                         // tcmod rotate #
1953                                                         // tcmod scale # #
1954                                                         // tcmod scroll # #
1955                                                         // tcmod stretch sin # # # #
1956                                                         // tcmod stretch triangle # # # #
1957                                                         // tcmod transform # # # # # #
1958                                                         // tcmod turb # # # #
1959                                                         // tcmod turb sin # # # #  (this is bogus)
1960                                                         // no other values have been observed in real shaders
1961                                                         for (tcmodindex = 0;tcmodindex < Q3MAXTCMODS;tcmodindex++)
1962                                                                 if (!layer->tcmods[tcmodindex].tcmod)
1963                                                                         break;
1964                                                         if (tcmodindex < Q3MAXTCMODS)
1965                                                         {
1966                                                                 for (i = 0;i < numparameters - 2 && i < Q3TCMOD_MAXPARMS;i++)
1967                                                                         layer->tcmods[tcmodindex].parms[i] = atof(parameter[i+2]);
1968                                                                          if (!strcasecmp(parameter[1], "entitytranslate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ENTITYTRANSLATE;
1969                                                                 else if (!strcasecmp(parameter[1], "rotate"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ROTATE;
1970                                                                 else if (!strcasecmp(parameter[1], "scale"))           layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCALE;
1971                                                                 else if (!strcasecmp(parameter[1], "scroll"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCROLL;
1972                                                                 else if (!strcasecmp(parameter[1], "page"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_PAGE;
1973                                                                 else if (!strcasecmp(parameter[1], "stretch"))
1974                                                                 {
1975                                                                         layer->tcmods[tcmodindex].tcmod = Q3TCMOD_STRETCH;
1976                                                                         layer->tcmods[tcmodindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1977                                                                         for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1978                                                                                 layer->tcmods[tcmodindex].waveparms[i] = atof(parameter[i+3]);
1979                                                                 }
1980                                                                 else if (!strcasecmp(parameter[1], "transform"))       layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TRANSFORM;
1981                                                                 else if (!strcasecmp(parameter[1], "turb"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TURBULENT;
1982                                                                 else Con_DPrintf("%s parsing warning: unknown tcmod mode %s\n", search->filenames[fileindex], parameter[1]);
1983                                                         }
1984                                                         else
1985                                                                 Con_DPrintf("%s parsing warning: too many tcmods on one layer\n", search->filenames[fileindex]);
1986                                                 }
1987                                                 // break out a level if it was a closing brace (not using the character here to not confuse vim)
1988                                                 if (!strcasecmp(com_token, "}"))
1989                                                         break;
1990                                         }
1991                                         if (layer->rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE || layer->rgbgen.rgbgen == Q3RGBGEN_VERTEX)
1992                                                 shader.lighting = true;
1993                                         if (layer->alphagen.alphagen == Q3ALPHAGEN_VERTEX)
1994                                         {
1995                                                 if (layer == shader.layers + 0)
1996                                                 {
1997                                                         // vertex controlled transparency
1998                                                         shader.vertexalpha = true;
1999                                                 }
2000                                                 else
2001                                                 {
2002                                                         // multilayer terrain shader or similar
2003                                                         shader.textureblendalpha = true;
2004                                                         if (mod_q3shader_force_terrain_alphaflag.integer)
2005                                                                 shader.layers[0].texflags |= TEXF_ALPHA;
2006                                                 }
2007                                         }
2008
2009                                         if(mod_q3shader_force_addalpha.integer)
2010                                         {
2011                                                 // for a long while, DP treated GL_ONE GL_ONE as GL_SRC_ALPHA GL_ONE
2012                                                 // this cvar brings back this behaviour
2013                                                 if(layer->blendfunc[0] == GL_ONE && layer->blendfunc[1] == GL_ONE)
2014                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
2015                                         }
2016
2017                                         layer->texflags = 0;
2018                                         if (layer->alphatest)
2019                                                 layer->texflags |= TEXF_ALPHA;
2020                                         switch(layer->blendfunc[0])
2021                                         {
2022                                                 case GL_SRC_ALPHA:
2023                                                 case GL_ONE_MINUS_SRC_ALPHA:
2024                                                         layer->texflags |= TEXF_ALPHA;
2025                                                         break;
2026                                         }
2027                                         switch(layer->blendfunc[1])
2028                                         {
2029                                                 case GL_SRC_ALPHA:
2030                                                 case GL_ONE_MINUS_SRC_ALPHA:
2031                                                         layer->texflags |= TEXF_ALPHA;
2032                                                         break;
2033                                         }
2034                                         if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
2035                                                 layer->texflags |= TEXF_MIPMAP;
2036                                         if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
2037                                                 layer->texflags |= TEXF_PICMIP | TEXF_COMPRESS;
2038                                         if (layer->clampmap)
2039                                                 layer->texflags |= TEXF_CLAMP;
2040                                         continue;
2041                                 }
2042                                 numparameters = 0;
2043                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
2044                                 {
2045                                         if (j < TEXTURE_MAXFRAMES + 4)
2046                                         {
2047                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
2048                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
2049                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
2050                                                 else
2051                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
2052                                                 numparameters = j + 1;
2053                                         }
2054                                         if (!COM_ParseToken_QuakeC(&text, true))
2055                                                 break;
2056                                 }
2057                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
2058                                 //      parameter[j][0] = 0;
2059                                 if (fileindex == 0 && !strcasecmp(com_token, "}"))
2060                                         break;
2061                                 if (developer_insane.integer)
2062                                 {
2063                                         Con_DPrintf("%s: ", shader.name);
2064                                         for (j = 0;j < numparameters;j++)
2065                                                 Con_DPrintf(" %s", parameter[j]);
2066                                         Con_DPrint("\n");
2067                                 }
2068                                 if (numparameters < 1)
2069                                         continue;
2070                                 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
2071                                 {
2072                                         if (!strcasecmp(parameter[1], "alphashadow"))
2073                                                 shader.surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
2074                                         else if (!strcasecmp(parameter[1], "areaportal"))
2075                                                 shader.surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
2076                                         else if (!strcasecmp(parameter[1], "botclip"))
2077                                                 shader.surfaceparms |= Q3SURFACEPARM_BOTCLIP;
2078                                         else if (!strcasecmp(parameter[1], "clusterportal"))
2079                                                 shader.surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
2080                                         else if (!strcasecmp(parameter[1], "detail"))
2081                                                 shader.surfaceparms |= Q3SURFACEPARM_DETAIL;
2082                                         else if (!strcasecmp(parameter[1], "donotenter"))
2083                                                 shader.surfaceparms |= Q3SURFACEPARM_DONOTENTER;
2084                                         else if (!strcasecmp(parameter[1], "dust"))
2085                                                 shader.surfaceparms |= Q3SURFACEPARM_DUST;
2086                                         else if (!strcasecmp(parameter[1], "hint"))
2087                                                 shader.surfaceparms |= Q3SURFACEPARM_HINT;
2088                                         else if (!strcasecmp(parameter[1], "fog"))
2089                                                 shader.surfaceparms |= Q3SURFACEPARM_FOG;
2090                                         else if (!strcasecmp(parameter[1], "lava"))
2091                                                 shader.surfaceparms |= Q3SURFACEPARM_LAVA;
2092                                         else if (!strcasecmp(parameter[1], "lightfilter"))
2093                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
2094                                         else if (!strcasecmp(parameter[1], "lightgrid"))
2095                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
2096                                         else if (!strcasecmp(parameter[1], "metalsteps"))
2097                                                 shader.surfaceparms |= Q3SURFACEPARM_METALSTEPS;
2098                                         else if (!strcasecmp(parameter[1], "nodamage"))
2099                                                 shader.surfaceparms |= Q3SURFACEPARM_NODAMAGE;
2100                                         else if (!strcasecmp(parameter[1], "nodlight"))
2101                                                 shader.surfaceparms |= Q3SURFACEPARM_NODLIGHT;
2102                                         else if (!strcasecmp(parameter[1], "nodraw"))
2103                                                 shader.surfaceparms |= Q3SURFACEPARM_NODRAW;
2104                                         else if (!strcasecmp(parameter[1], "nodrop"))
2105                                                 shader.surfaceparms |= Q3SURFACEPARM_NODROP;
2106                                         else if (!strcasecmp(parameter[1], "noimpact"))
2107                                                 shader.surfaceparms |= Q3SURFACEPARM_NOIMPACT;
2108                                         else if (!strcasecmp(parameter[1], "nolightmap"))
2109                                                 shader.surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
2110                                         else if (!strcasecmp(parameter[1], "nomarks"))
2111                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMARKS;
2112                                         else if (!strcasecmp(parameter[1], "nomipmaps"))
2113                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2114                                         else if (!strcasecmp(parameter[1], "nonsolid"))
2115                                                 shader.surfaceparms |= Q3SURFACEPARM_NONSOLID;
2116                                         else if (!strcasecmp(parameter[1], "origin"))
2117                                                 shader.surfaceparms |= Q3SURFACEPARM_ORIGIN;
2118                                         else if (!strcasecmp(parameter[1], "playerclip"))
2119                                                 shader.surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
2120                                         else if (!strcasecmp(parameter[1], "sky"))
2121                                                 shader.surfaceparms |= Q3SURFACEPARM_SKY;
2122                                         else if (!strcasecmp(parameter[1], "slick"))
2123                                                 shader.surfaceparms |= Q3SURFACEPARM_SLICK;
2124                                         else if (!strcasecmp(parameter[1], "slime"))
2125                                                 shader.surfaceparms |= Q3SURFACEPARM_SLIME;
2126                                         else if (!strcasecmp(parameter[1], "structural"))
2127                                                 shader.surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
2128                                         else if (!strcasecmp(parameter[1], "trans"))
2129                                                 shader.surfaceparms |= Q3SURFACEPARM_TRANS;
2130                                         else if (!strcasecmp(parameter[1], "water"))
2131                                                 shader.surfaceparms |= Q3SURFACEPARM_WATER;
2132                                         else if (!strcasecmp(parameter[1], "pointlight"))
2133                                                 shader.surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
2134                                         else if (!strcasecmp(parameter[1], "antiportal"))
2135                                                 shader.surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
2136                                         else if (!strcasecmp(parameter[1], "skip"))
2137                                                 ; // shader.surfaceparms |= Q3SURFACEPARM_SKIP; FIXME we don't have enough #defines for this any more, and the engine doesn't need this one anyway
2138                                         else
2139                                         {
2140                                                 // try custom surfaceparms
2141                                                 for (j = 0; j < numcustsurfaceflags; j++)
2142                                                 {
2143                                                         if (!strcasecmp(custsurfaceparmnames[j], parameter[1]))
2144                                                         {
2145                                                                 shader.surfaceflags |= custsurfaceflags[j];
2146                                                                 break;
2147                                                         }
2148                                                 }
2149                                                 // failed all
2150                                                 if (j == numcustsurfaceflags)
2151                                                         Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
2152                                         }
2153                                 }
2154                                 else if (!strcasecmp(parameter[0], "dpshadow"))
2155                                         shader.dpshadow = true;
2156                                 else if (!strcasecmp(parameter[0], "dpnoshadow"))
2157                                         shader.dpnoshadow = true;
2158                                 else if (!strcasecmp(parameter[0], "dpnortlight"))
2159                                         shader.dpnortlight = true;
2160                                 else if (!strcasecmp(parameter[0], "dpreflectcube"))
2161                                         strlcpy(shader.dpreflectcube, parameter[1], sizeof(shader.dpreflectcube));
2162                                 else if (!strcasecmp(parameter[0], "dpmeshcollisions"))
2163                                         shader.dpmeshcollisions = true;
2164                                 // this sets dpshaderkill to true if dpshaderkillifcvarzero was used, and to false if dpnoshaderkillifcvarzero was used
2165                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvarzero")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvarzero")) && numparameters >= 2)
2166                                 {
2167                                         if (Cvar_VariableValue(parameter[1]) == 0.0f)
2168                                                 shader.dpshaderkill = dpshaderkill;
2169                                 }
2170                                 // this sets dpshaderkill to true if dpshaderkillifcvar was used, and to false if dpnoshaderkillifcvar was used
2171                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvar")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvar")) && numparameters >= 2)
2172                                 {
2173                                         const char *op = NULL;
2174                                         if (numparameters >= 3)
2175                                                 op = parameter[2];
2176                                         if(!op)
2177                                         {
2178                                                 if (Cvar_VariableValue(parameter[1]) != 0.0f)
2179                                                         shader.dpshaderkill = dpshaderkill;
2180                                         }
2181                                         else if (numparameters >= 4 && !strcmp(op, "=="))
2182                                         {
2183                                                 if (Cvar_VariableValue(parameter[1]) == atof(parameter[3]))
2184                                                         shader.dpshaderkill = dpshaderkill;
2185                                         }
2186                                         else if (numparameters >= 4 && !strcmp(op, "!="))
2187                                         {
2188                                                 if (Cvar_VariableValue(parameter[1]) != atof(parameter[3]))
2189                                                         shader.dpshaderkill = dpshaderkill;
2190                                         }
2191                                         else if (numparameters >= 4 && !strcmp(op, ">"))
2192                                         {
2193                                                 if (Cvar_VariableValue(parameter[1]) > atof(parameter[3]))
2194                                                         shader.dpshaderkill = dpshaderkill;
2195                                         }
2196                                         else if (numparameters >= 4 && !strcmp(op, "<"))
2197                                         {
2198                                                 if (Cvar_VariableValue(parameter[1]) < atof(parameter[3]))
2199                                                         shader.dpshaderkill = dpshaderkill;
2200                                         }
2201                                         else if (numparameters >= 4 && !strcmp(op, ">="))
2202                                         {
2203                                                 if (Cvar_VariableValue(parameter[1]) >= atof(parameter[3]))
2204                                                         shader.dpshaderkill = dpshaderkill;
2205                                         }
2206                                         else if (numparameters >= 4 && !strcmp(op, "<="))
2207                                         {
2208                                                 if (Cvar_VariableValue(parameter[1]) <= atof(parameter[3]))
2209                                                         shader.dpshaderkill = dpshaderkill;
2210                                         }
2211                                         else
2212                                         {
2213                                                 Con_DPrintf("%s parsing warning: unknown dpshaderkillifcvar op \"%s\", or not enough arguments\n", search->filenames[fileindex], op);
2214                                         }
2215                                 }
2216                                 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
2217                                 {
2218                                         // some q3 skies don't have the sky parm set
2219                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2220                                         strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2221                                 }
2222                                 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
2223                                 {
2224                                         // some q3 skies don't have the sky parm set
2225                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2226                                         if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
2227                                                 strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2228                                 }
2229                                 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
2230                                 {
2231                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
2232                                                 shader.textureflags |= Q3TEXTUREFLAG_TWOSIDED;
2233                                 }
2234                                 else if (!strcasecmp(parameter[0], "nomipmaps"))
2235                                         shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2236                                 else if (!strcasecmp(parameter[0], "nopicmip"))
2237                                         shader.textureflags |= Q3TEXTUREFLAG_NOPICMIP;
2238                                 else if (!strcasecmp(parameter[0], "polygonoffset"))
2239                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2240                                 else if (!strcasecmp(parameter[0], "dppolygonoffset"))
2241                                 {
2242                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2243                                         if(numparameters >= 2)
2244                                         {
2245                                                 shader.biaspolygonfactor = atof(parameter[1]);
2246                                                 if(numparameters >= 3)
2247                                                         shader.biaspolygonoffset = atof(parameter[2]);
2248                                                 else
2249                                                         shader.biaspolygonoffset = 0;
2250                                         }
2251                                 }
2252                                 else if (!strcasecmp(parameter[0], "dptransparentsort") && numparameters >= 2)
2253                                 {
2254                                         shader.textureflags |= Q3TEXTUREFLAG_TRANSPARENTSORT;
2255                                         if (!strcasecmp(parameter[1], "sky"))
2256                                                 shader.transparentsort = TRANSPARENTSORT_SKY;
2257                                         else if (!strcasecmp(parameter[1], "distance"))
2258                                                 shader.transparentsort = TRANSPARENTSORT_DISTANCE;
2259                                         else if (!strcasecmp(parameter[1], "hud"))
2260                                                 shader.transparentsort = TRANSPARENTSORT_HUD;
2261                                         else
2262                                                 Con_DPrintf("%s parsing warning: unknown dptransparentsort category \"%s\", or not enough arguments\n", search->filenames[fileindex], parameter[1]);
2263                                 }
2264                                 else if (!strcasecmp(parameter[0], "dprefract") && numparameters >= 5)
2265                                 {
2266                                         shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
2267                                         shader.refractfactor = atof(parameter[1]);
2268                                         Vector4Set(shader.refractcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), 1);
2269                                 }
2270                                 else if (!strcasecmp(parameter[0], "dpreflect") && numparameters >= 6)
2271                                 {
2272                                         shader.textureflags |= Q3TEXTUREFLAG_REFLECTION;
2273                                         shader.reflectfactor = atof(parameter[1]);
2274                                         Vector4Set(shader.reflectcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), atof(parameter[5]));
2275                                 }
2276                                 else if (!strcasecmp(parameter[0], "dpcamera"))
2277                                 {
2278                                         shader.textureflags |= Q3TEXTUREFLAG_CAMERA;
2279                                 }
2280                                 else if (!strcasecmp(parameter[0], "dpwater") && numparameters >= 12)
2281                                 {
2282                                         shader.textureflags |= Q3TEXTUREFLAG_WATERSHADER;
2283                                         shader.reflectmin = atof(parameter[1]);
2284                                         shader.reflectmax = atof(parameter[2]);
2285                                         shader.refractfactor = atof(parameter[3]);
2286                                         shader.reflectfactor = atof(parameter[4]);
2287                                         Vector4Set(shader.refractcolor4f, atof(parameter[5]), atof(parameter[6]), atof(parameter[7]), 1);
2288                                         Vector4Set(shader.reflectcolor4f, atof(parameter[8]), atof(parameter[9]), atof(parameter[10]), 1);
2289                                         shader.r_water_wateralpha = atof(parameter[11]);
2290                                 }
2291                                 else if (!strcasecmp(parameter[0], "dpwaterscroll") && numparameters >= 3)
2292                                 {
2293                                         shader.r_water_waterscroll[0] = 1/atof(parameter[1]);
2294                                         shader.r_water_waterscroll[1] = 1/atof(parameter[2]);
2295                                 }
2296                                 else if (!strcasecmp(parameter[0], "dpglossintensitymod") && numparameters >= 2)
2297                                 {
2298                                         shader.specularscalemod = atof(parameter[1]);
2299                                 }
2300                                 else if (!strcasecmp(parameter[0], "dpglossexponentmod") && numparameters >= 2)
2301                                 {
2302                                         shader.specularpowermod = atof(parameter[1]);
2303                                 }
2304                                 else if (!strcasecmp(parameter[0], "dprtlightambient") && numparameters >= 2)
2305                                 {
2306                                         shader.rtlightambient = atof(parameter[1]);
2307                                 }
2308                                 else if (!strcasecmp(parameter[0], "dpoffsetmapping") && numparameters >= 2)
2309                                 {
2310                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "off"))
2311                                                 shader.offsetmapping = OFFSETMAPPING_OFF;
2312                                         else if (!strcasecmp(parameter[1], "default") || !strcasecmp(parameter[1], "normal"))
2313                                                 shader.offsetmapping = OFFSETMAPPING_DEFAULT;
2314                                         else if (!strcasecmp(parameter[1], "linear"))
2315                                                 shader.offsetmapping = OFFSETMAPPING_LINEAR;
2316                                         else if (!strcasecmp(parameter[1], "relief"))
2317                                                 shader.offsetmapping = OFFSETMAPPING_RELIEF;
2318                                         if (numparameters >= 3)
2319                                                 shader.offsetscale = atof(parameter[2]);
2320                                         if (numparameters >= 5)
2321                                         {
2322                                                 if(!strcasecmp(parameter[3], "bias"))
2323                                                         shader.offsetbias = atof(parameter[4]);
2324                                                 else if(!strcasecmp(parameter[3], "match"))
2325                                                         shader.offsetbias = 1.0f - atof(parameter[4]);
2326                                                 else if(!strcasecmp(parameter[3], "match8"))
2327                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 255.0f;
2328                                                 else if(!strcasecmp(parameter[3], "match16"))
2329                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 65535.0f;
2330                                         }
2331                                 }
2332                                 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
2333                                 {
2334                                         int i, deformindex;
2335                                         for (deformindex = 0;deformindex < Q3MAXDEFORMS;deformindex++)
2336                                                 if (!shader.deforms[deformindex].deform)
2337                                                         break;
2338                                         if (deformindex < Q3MAXDEFORMS)
2339                                         {
2340                                                 for (i = 0;i < numparameters - 2 && i < Q3DEFORM_MAXPARMS;i++)
2341                                                         shader.deforms[deformindex].parms[i] = atof(parameter[i+2]);
2342                                                      if (!strcasecmp(parameter[1], "projectionshadow")) shader.deforms[deformindex].deform = Q3DEFORM_PROJECTIONSHADOW;
2343                                                 else if (!strcasecmp(parameter[1], "autosprite"      )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE;
2344                                                 else if (!strcasecmp(parameter[1], "autosprite2"     )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE2;
2345                                                 else if (!strcasecmp(parameter[1], "text0"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT0;
2346                                                 else if (!strcasecmp(parameter[1], "text1"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT1;
2347                                                 else if (!strcasecmp(parameter[1], "text2"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT2;
2348                                                 else if (!strcasecmp(parameter[1], "text3"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT3;
2349                                                 else if (!strcasecmp(parameter[1], "text4"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT4;
2350                                                 else if (!strcasecmp(parameter[1], "text5"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT5;
2351                                                 else if (!strcasecmp(parameter[1], "text6"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT6;
2352                                                 else if (!strcasecmp(parameter[1], "text7"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT7;
2353                                                 else if (!strcasecmp(parameter[1], "bulge"           )) shader.deforms[deformindex].deform = Q3DEFORM_BULGE;
2354                                                 else if (!strcasecmp(parameter[1], "normal"          )) shader.deforms[deformindex].deform = Q3DEFORM_NORMAL;
2355                                                 else if (!strcasecmp(parameter[1], "wave"            ))
2356                                                 {
2357                                                         shader.deforms[deformindex].deform = Q3DEFORM_WAVE;
2358                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[3]);
2359                                                         for (i = 0;i < numparameters - 4 && i < Q3WAVEPARMS;i++)
2360                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+4]);
2361                                                 }
2362                                                 else if (!strcasecmp(parameter[1], "move"            ))
2363                                                 {
2364                                                         shader.deforms[deformindex].deform = Q3DEFORM_MOVE;
2365                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[5]);
2366                                                         for (i = 0;i < numparameters - 6 && i < Q3WAVEPARMS;i++)
2367                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+6]);
2368                                                 }
2369                                         }
2370                                 }
2371                         }
2372                         // hide this shader if a cvar said it should be killed
2373                         if (shader.dpshaderkill)
2374                                 shader.numlayers = 0;
2375                         // pick the primary layer to render with
2376                         if (shader.numlayers)
2377                         {
2378                                 shader.backgroundlayer = -1;
2379                                 shader.primarylayer = 0;
2380                                 // if lightmap comes first this is definitely an ordinary texture
2381                                 // if the first two layers have the correct blendfuncs and use vertex alpha, it is a blended terrain shader
2382                                 if ((shader.layers[shader.primarylayer].texturename != NULL)
2383                                   && !strcasecmp(shader.layers[shader.primarylayer].texturename[0], "$lightmap"))
2384                                 {
2385                                         shader.backgroundlayer = -1;
2386                                         shader.primarylayer = 1;
2387                                 }
2388                                 else if (shader.numlayers >= 2
2389                                 &&   shader.layers[1].alphagen.alphagen == Q3ALPHAGEN_VERTEX
2390                                 &&  (shader.layers[0].blendfunc[0] == GL_ONE       && shader.layers[0].blendfunc[1] == GL_ZERO                && !shader.layers[0].alphatest)
2391                                 && ((shader.layers[1].blendfunc[0] == GL_SRC_ALPHA && shader.layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2392                                 ||  (shader.layers[1].blendfunc[0] == GL_ONE       && shader.layers[1].blendfunc[1] == GL_ZERO                &&  shader.layers[1].alphatest)))
2393                                 {
2394                                         // terrain blending or other effects
2395                                         shader.backgroundlayer = 0;
2396                                         shader.primarylayer = 1;
2397                                 }
2398                         }
2399                         // fix up multiple reflection types
2400                         if(shader.textureflags & Q3TEXTUREFLAG_WATERSHADER)
2401                                 shader.textureflags &= ~(Q3TEXTUREFLAG_REFRACTION | Q3TEXTUREFLAG_REFLECTION | Q3TEXTUREFLAG_CAMERA);
2402
2403                         Q3Shader_AddToHash (&shader);
2404                 }
2405                 Mem_Free(f);
2406         }
2407         FS_FreeSearch(search);
2408         // free custinfoparm values
2409         for (j = 0; j < numcustsurfaceflags; j++)
2410                 Mem_Free(custsurfaceparmnames[j]);
2411 }
2412
2413 q3shaderinfo_t *Mod_LookupQ3Shader(const char *name)
2414 {
2415         unsigned short hash;
2416         q3shader_hash_entry_t* entry;
2417         if (!q3shaders_mem)
2418                 Mod_LoadQ3Shaders();
2419         hash = CRC_Block_CaseInsensitive ((const unsigned char *)name, strlen (name));
2420         entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
2421         while (entry != NULL)
2422         {
2423                 if (strcasecmp (entry->shader.name, name) == 0)
2424                         return &entry->shader;
2425                 entry = entry->chain;
2426         }
2427         return NULL;
2428 }
2429
2430 qboolean Mod_LoadTextureFromQ3Shader(texture_t *texture, const char *name, qboolean warnmissing, qboolean fallback, int defaulttexflags)
2431 {
2432         int j;
2433         int texflagsmask, texflagsor;
2434         qboolean success = true;
2435         q3shaderinfo_t *shader;
2436         if (!name)
2437                 name = "";
2438         strlcpy(texture->name, name, sizeof(texture->name));
2439         shader = name[0] ? Mod_LookupQ3Shader(name) : NULL;
2440
2441         texflagsmask = ~0;
2442         if(!(defaulttexflags & TEXF_PICMIP))
2443                 texflagsmask &= ~TEXF_PICMIP;
2444         if(!(defaulttexflags & TEXF_COMPRESS))
2445                 texflagsmask &= ~TEXF_COMPRESS;
2446         texflagsor = 0;
2447         if(defaulttexflags & TEXF_ISWORLD)
2448                 texflagsor |= TEXF_ISWORLD;
2449         if(defaulttexflags & TEXF_ISSPRITE)
2450                 texflagsor |= TEXF_ISSPRITE;
2451         // unless later loaded from the shader
2452         texture->offsetmapping = (mod_noshader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
2453         texture->offsetscale = 1;
2454         texture->offsetbias = 0;
2455         texture->specularscalemod = 1;
2456         texture->specularpowermod = 1;
2457         texture->rtlightambient = 0;
2458         // WHEN ADDING DEFAULTS HERE, REMEMBER TO SYNC TO SHADER LOADING ABOVE
2459         // HERE, AND Q1BSP LOADING
2460         // JUST GREP FOR "specularscalemod = 1".
2461
2462         if (shader)
2463         {
2464                 if (developer_loading.integer)
2465                         Con_Printf("%s: loaded shader for %s\n", loadmodel->name, name);
2466
2467                 // allow disabling of picmip or compression by defaulttexflags
2468                 texture->textureflags = (shader->textureflags & texflagsmask) | texflagsor;
2469
2470                 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
2471                 {
2472                         texture->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2473                         if (shader->skyboxname[0])
2474                         {
2475                                 // quake3 seems to append a _ to the skybox name, so this must do so as well
2476                                 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
2477                         }
2478                 }
2479                 else if ((texture->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
2480                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2481                 else
2482                         texture->basematerialflags = MATERIALFLAG_WALL;
2483
2484                 if (shader->layers[0].alphatest)
2485                         texture->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
2486                 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
2487                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
2488                 if (shader->textureflags & Q3TEXTUREFLAG_POLYGONOFFSET)
2489                 {
2490                         texture->biaspolygonoffset += shader->biaspolygonoffset;
2491                         texture->biaspolygonfactor += shader->biaspolygonfactor;
2492                 }
2493                 if (shader->textureflags & Q3TEXTUREFLAG_REFRACTION)
2494                         texture->basematerialflags |= MATERIALFLAG_REFRACTION;
2495                 if (shader->textureflags & Q3TEXTUREFLAG_REFLECTION)
2496                         texture->basematerialflags |= MATERIALFLAG_REFLECTION;
2497                 if (shader->textureflags & Q3TEXTUREFLAG_WATERSHADER)
2498                         texture->basematerialflags |= MATERIALFLAG_WATERSHADER;
2499                 if (shader->textureflags & Q3TEXTUREFLAG_CAMERA)
2500                         texture->basematerialflags |= MATERIALFLAG_CAMERA;
2501                 texture->customblendfunc[0] = GL_ONE;
2502                 texture->customblendfunc[1] = GL_ZERO;
2503                 texture->transparentsort = shader->transparentsort;
2504                 if (shader->numlayers > 0)
2505                 {
2506                         texture->customblendfunc[0] = shader->layers[0].blendfunc[0];
2507                         texture->customblendfunc[1] = shader->layers[0].blendfunc[1];
2508 /*
2509 Q3 shader blendfuncs actually used in the game (* = supported by DP)
2510 * additive               GL_ONE GL_ONE
2511 additive weird         GL_ONE GL_SRC_ALPHA
2512 additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
2513 * alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
2514 alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
2515 brighten               GL_DST_COLOR GL_ONE
2516 brighten               GL_ONE GL_SRC_COLOR
2517 brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
2518 brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
2519 * modulate               GL_DST_COLOR GL_ZERO
2520 * modulate               GL_ZERO GL_SRC_COLOR
2521 modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
2522 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
2523 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
2524 * modulate x2            GL_DST_COLOR GL_SRC_COLOR
2525 * no blend               GL_ONE GL_ZERO
2526 nothing                GL_ZERO GL_ONE
2527 */
2528                         // if not opaque, figure out what blendfunc to use
2529                         if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
2530                         {
2531                                 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
2532                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2533                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
2534                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2535                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2536                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2537                                 else
2538                                         texture->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2539                         }
2540                 }
2541                 if (!shader->lighting)
2542                         texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
2543                 if (shader->primarylayer >= 0)
2544                 {
2545                         q3shaderinfo_layer_t* primarylayer = shader->layers + shader->primarylayer;
2546                         // copy over many primarylayer parameters
2547                         texture->rgbgen = primarylayer->rgbgen;
2548                         texture->alphagen = primarylayer->alphagen;
2549                         texture->tcgen = primarylayer->tcgen;
2550                         memcpy(texture->tcmods, primarylayer->tcmods, sizeof(texture->tcmods));
2551                         // load the textures
2552                         texture->numskinframes = primarylayer->numframes;
2553                         texture->skinframerate = primarylayer->framerate;
2554                         for (j = 0;j < primarylayer->numframes;j++)
2555                         {
2556                                 if(cls.state == ca_dedicated)
2557                                 {
2558                                         texture->skinframes[j] = NULL;
2559                                 }
2560                                 else if (!(texture->skinframes[j] = R_SkinFrame_LoadExternal(primarylayer->texturename[j], (primarylayer->texflags & texflagsmask) | texflagsor, false)))
2561                                 {
2562                                         Con_Printf("^1%s:^7 could not load texture ^3\"%s\"^7 (frame %i) for shader ^2\"%s\"\n", loadmodel->name, primarylayer->texturename[j], j, texture->name);
2563                                         texture->skinframes[j] = R_SkinFrame_LoadMissing();
2564                                 }
2565                         }
2566                 }
2567                 if (shader->backgroundlayer >= 0)
2568                 {
2569                         q3shaderinfo_layer_t* backgroundlayer = shader->layers + shader->backgroundlayer;
2570                         // copy over one secondarylayer parameter
2571                         memcpy(texture->backgroundtcmods, backgroundlayer->tcmods, sizeof(texture->backgroundtcmods));
2572                         // load the textures
2573                         texture->backgroundnumskinframes = backgroundlayer->numframes;
2574                         texture->backgroundskinframerate = backgroundlayer->framerate;
2575                         for (j = 0;j < backgroundlayer->numframes;j++)
2576                         {
2577                                 if(cls.state == ca_dedicated)
2578                                 {
2579                                         texture->skinframes[j] = NULL;
2580                                 }
2581                                 else if (!(texture->backgroundskinframes[j] = R_SkinFrame_LoadExternal(backgroundlayer->texturename[j], (backgroundlayer->texflags & texflagsmask) | texflagsor, false)))
2582                                 {
2583                                         Con_Printf("^1%s:^7 could not load texture ^3\"%s\"^7 (background frame %i) for shader ^2\"%s\"\n", loadmodel->name, backgroundlayer->texturename[j], j, texture->name);
2584                                         texture->backgroundskinframes[j] = R_SkinFrame_LoadMissing();
2585                                 }
2586                         }
2587                 }
2588                 if (shader->dpshadow)
2589                         texture->basematerialflags &= ~MATERIALFLAG_NOSHADOW;
2590                 if (shader->dpnoshadow)
2591                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW;
2592                 if (shader->dpnortlight)
2593                         texture->basematerialflags |= MATERIALFLAG_NORTLIGHT;
2594                 if (shader->vertexalpha)
2595                         texture->basematerialflags |= MATERIALFLAG_ALPHAGEN_VERTEX;
2596                 memcpy(texture->deforms, shader->deforms, sizeof(texture->deforms));
2597                 texture->reflectmin = shader->reflectmin;
2598                 texture->reflectmax = shader->reflectmax;
2599                 texture->refractfactor = shader->refractfactor;
2600                 Vector4Copy(shader->refractcolor4f, texture->refractcolor4f);
2601                 texture->reflectfactor = shader->reflectfactor;
2602                 Vector4Copy(shader->reflectcolor4f, texture->reflectcolor4f);
2603                 texture->r_water_wateralpha = shader->r_water_wateralpha;
2604                 Vector2Copy(shader->r_water_waterscroll, texture->r_water_waterscroll);
2605                 texture->offsetmapping = shader->offsetmapping;
2606                 texture->offsetscale = shader->offsetscale;
2607                 texture->offsetbias = shader->offsetbias;
2608                 texture->specularscalemod = shader->specularscalemod;
2609                 texture->specularpowermod = shader->specularpowermod;
2610                 texture->rtlightambient = shader->rtlightambient;
2611                 if (shader->dpreflectcube[0])
2612                         texture->reflectcubetexture = R_GetCubemap(shader->dpreflectcube);
2613
2614                 // set up default supercontents (on q3bsp this is overridden by the q3bsp loader)
2615                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2616                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents  = SUPERCONTENTS_LAVA         ;
2617                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents  = SUPERCONTENTS_SLIME        ;
2618                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents  = SUPERCONTENTS_WATER        ;
2619                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents  = 0                          ;
2620                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents  = SUPERCONTENTS_PLAYERCLIP   ;
2621                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents  = SUPERCONTENTS_MONSTERCLIP  ;
2622                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents  = SUPERCONTENTS_SKY          ;
2623
2624         //      if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->supercontents |= SUPERCONTENTS_ALPHASHADOW  ;
2625         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->supercontents |= SUPERCONTENTS_AREAPORTAL   ;
2626         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->supercontents |= SUPERCONTENTS_CLUSTERPORTAL;
2627         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->supercontents |= SUPERCONTENTS_DETAIL       ;
2628                 if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->supercontents |= SUPERCONTENTS_DONOTENTER   ;
2629         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->supercontents |= SUPERCONTENTS_FOG          ;
2630                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents |= SUPERCONTENTS_LAVA         ;
2631         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->supercontents |= SUPERCONTENTS_LIGHTFILTER  ;
2632         //      if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->supercontents |= SUPERCONTENTS_METALSTEPS   ;
2633         //      if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->supercontents |= SUPERCONTENTS_NODAMAGE     ;
2634         //      if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->supercontents |= SUPERCONTENTS_NODLIGHT     ;
2635         //      if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->supercontents |= SUPERCONTENTS_NODRAW       ;
2636                 if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->supercontents |= SUPERCONTENTS_NODROP       ;
2637         //      if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->supercontents |= SUPERCONTENTS_NOIMPACT     ;
2638         //      if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->supercontents |= SUPERCONTENTS_NOLIGHTMAP   ;
2639         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->supercontents |= SUPERCONTENTS_NOMARKS      ;
2640         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->supercontents |= SUPERCONTENTS_NOMIPMAPS    ;
2641                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents &=~SUPERCONTENTS_SOLID        ;
2642         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->supercontents |= SUPERCONTENTS_ORIGIN       ;
2643                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents |= SUPERCONTENTS_PLAYERCLIP   ;
2644                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents |= SUPERCONTENTS_SKY          ;
2645         //      if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->supercontents |= SUPERCONTENTS_SLICK        ;
2646                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents |= SUPERCONTENTS_SLIME        ;
2647         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->supercontents |= SUPERCONTENTS_STRUCTURAL   ;
2648         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->supercontents |= SUPERCONTENTS_TRANS        ;
2649                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents |= SUPERCONTENTS_WATER        ;
2650         //      if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->supercontents |= SUPERCONTENTS_POINTLIGHT   ;
2651         //      if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->supercontents |= SUPERCONTENTS_HINT         ;
2652         //      if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->supercontents |= SUPERCONTENTS_DUST         ;
2653                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents |= SUPERCONTENTS_BOTCLIP      | SUPERCONTENTS_MONSTERCLIP;
2654         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->supercontents |= SUPERCONTENTS_LIGHTGRID    ;
2655         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->supercontents |= SUPERCONTENTS_ANTIPORTAL   ;
2656
2657                 texture->surfaceflags = shader->surfaceflags;
2658                 if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->surfaceflags |= Q3SURFACEFLAG_ALPHASHADOW  ;
2659         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_AREAPORTAL   ;
2660         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->surfaceflags |= Q3SURFACEFLAG_CLUSTERPORTAL;
2661         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->surfaceflags |= Q3SURFACEFLAG_DETAIL       ;
2662         //      if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->surfaceflags |= Q3SURFACEFLAG_DONOTENTER   ;
2663         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->surfaceflags |= Q3SURFACEFLAG_FOG          ;
2664         //      if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->surfaceflags |= Q3SURFACEFLAG_LAVA         ;
2665                 if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTFILTER  ;
2666                 if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->surfaceflags |= Q3SURFACEFLAG_METALSTEPS   ;
2667                 if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->surfaceflags |= Q3SURFACEFLAG_NODAMAGE     ;
2668                 if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->surfaceflags |= Q3SURFACEFLAG_NODLIGHT     ;
2669                 if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->surfaceflags |= Q3SURFACEFLAG_NODRAW       ;
2670         //      if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->surfaceflags |= Q3SURFACEFLAG_NODROP       ;
2671                 if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->surfaceflags |= Q3SURFACEFLAG_NOIMPACT     ;
2672                 if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->surfaceflags |= Q3SURFACEFLAG_NOLIGHTMAP   ;
2673                 if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->surfaceflags |= Q3SURFACEFLAG_NOMARKS      ;
2674         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->surfaceflags |= Q3SURFACEFLAG_NOMIPMAPS    ;
2675                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->surfaceflags |= Q3SURFACEFLAG_NONSOLID     ;
2676         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->surfaceflags |= Q3SURFACEFLAG_ORIGIN       ;
2677         //      if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->surfaceflags |= Q3SURFACEFLAG_PLAYERCLIP   ;
2678                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->surfaceflags |= Q3SURFACEFLAG_SKY          ;
2679                 if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->surfaceflags |= Q3SURFACEFLAG_SLICK        ;
2680         //      if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->surfaceflags |= Q3SURFACEFLAG_SLIME        ;
2681         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->surfaceflags |= Q3SURFACEFLAG_STRUCTURAL   ;
2682         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->surfaceflags |= Q3SURFACEFLAG_TRANS        ;
2683         //      if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->surfaceflags |= Q3SURFACEFLAG_WATER        ;
2684                 if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->surfaceflags |= Q3SURFACEFLAG_POINTLIGHT   ;
2685                 if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->surfaceflags |= Q3SURFACEFLAG_HINT         ;
2686                 if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->surfaceflags |= Q3SURFACEFLAG_DUST         ;
2687         //      if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->surfaceflags |= Q3SURFACEFLAG_BOTCLIP      ;
2688         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTGRID    ;
2689         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_ANTIPORTAL   ;
2690
2691                 if (shader->dpmeshcollisions)
2692                         texture->basematerialflags |= MATERIALFLAG_MESHCOLLISIONS;
2693                 if (shader->dpshaderkill && developer_extra.integer)
2694                         Con_DPrintf("^1%s:^7 killing shader ^3\"%s\" because of cvar\n", loadmodel->name, name);
2695         }
2696         else if (!strcmp(texture->name, "noshader") || !texture->name[0])
2697         {
2698                 if (developer_extra.integer)
2699                         Con_DPrintf("^1%s:^7 using fallback noshader material for ^3\"%s\"\n", loadmodel->name, name);
2700                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2701         }
2702         else if (!strcmp(texture->name, "common/nodraw") || !strcmp(texture->name, "textures/common/nodraw"))
2703         {
2704                 if (developer_extra.integer)
2705                         Con_DPrintf("^1%s:^7 using fallback nodraw material for ^3\"%s\"\n", loadmodel->name, name);
2706                 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2707                 texture->supercontents = SUPERCONTENTS_SOLID;
2708         }
2709         else
2710         {
2711                 if (developer_extra.integer)
2712                         Con_DPrintf("^1%s:^7 No shader found for texture ^3\"%s\"\n", loadmodel->name, texture->name);
2713                 if (texture->surfaceflags & Q3SURFACEFLAG_NODRAW)
2714                 {
2715                         texture->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2716                         texture->supercontents = SUPERCONTENTS_SOLID;
2717                 }
2718                 else if (texture->surfaceflags & Q3SURFACEFLAG_SKY)
2719                 {
2720                         texture->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2721                         texture->supercontents = SUPERCONTENTS_SKY;
2722                 }
2723                 else
2724                 {
2725                         texture->basematerialflags |= MATERIALFLAG_WALL;
2726                         texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2727                 }
2728                 texture->numskinframes = 1;
2729                 if(cls.state == ca_dedicated)
2730                 {
2731                         texture->skinframes[0] = NULL;
2732                         success = false;
2733                 }
2734                 else
2735                 {
2736                         if (fallback)
2737                         {
2738                                 if ((texture->skinframes[0] = R_SkinFrame_LoadExternal(texture->name, defaulttexflags, false)))
2739                                 {
2740                                         if(texture->skinframes[0]->hasalpha)
2741                                                 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2742                                 }
2743                                 else
2744                                         success = false;
2745                         }
2746                         else
2747                                 success = false;
2748                         if (!success && warnmissing)
2749                                 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"\n", loadmodel->name, texture->name);
2750                 }
2751         }
2752         // init the animation variables
2753         texture->currentframe = texture;
2754         if (texture->numskinframes < 1)
2755                 texture->numskinframes = 1;
2756         if (!texture->skinframes[0])
2757                 texture->skinframes[0] = R_SkinFrame_LoadMissing();
2758         texture->currentskinframe = texture->skinframes[0];
2759         texture->backgroundcurrentskinframe = texture->backgroundskinframes[0];
2760         return success;
2761 }
2762
2763 skinfile_t *Mod_LoadSkinFiles(void)
2764 {
2765         int i, words, line, wordsoverflow;
2766         char *text;
2767         const char *data;
2768         skinfile_t *skinfile = NULL, *first = NULL;
2769         skinfileitem_t *skinfileitem;
2770         char word[10][MAX_QPATH];
2771         char vabuf[1024];
2772
2773 /*
2774 sample file:
2775 U_bodyBox,models/players/Legoman/BikerA2.tga
2776 U_RArm,models/players/Legoman/BikerA1.tga
2777 U_LArm,models/players/Legoman/BikerA1.tga
2778 U_armor,common/nodraw
2779 U_sword,common/nodraw
2780 U_shield,common/nodraw
2781 U_homb,common/nodraw
2782 U_backpack,common/nodraw
2783 U_colcha,common/nodraw
2784 tag_head,
2785 tag_weapon,
2786 tag_torso,
2787 */
2788         memset(word, 0, sizeof(word));
2789         for (i = 0;i < 256 && (data = text = (char *)FS_LoadFile(va(vabuf, sizeof(vabuf), "%s_%i.skin", loadmodel->name, i), tempmempool, true, NULL));i++)
2790         {
2791                 // If it's the first file we parse
2792                 if (skinfile == NULL)
2793                 {
2794                         skinfile = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2795                         first = skinfile;
2796                 }
2797                 else
2798                 {
2799                         skinfile->next = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2800                         skinfile = skinfile->next;
2801                 }
2802                 skinfile->next = NULL;
2803
2804                 for(line = 0;;line++)
2805                 {
2806                         // parse line
2807                         if (!COM_ParseToken_QuakeC(&data, true))
2808                                 break;
2809                         if (!strcmp(com_token, "\n"))
2810                                 continue;
2811                         words = 0;
2812                         wordsoverflow = false;
2813                         do
2814                         {
2815                                 if (words < 10)
2816                                         strlcpy(word[words++], com_token, sizeof (word[0]));
2817                                 else
2818                                         wordsoverflow = true;
2819                         }
2820                         while (COM_ParseToken_QuakeC(&data, true) && strcmp(com_token, "\n"));
2821                         if (wordsoverflow)
2822                         {
2823                                 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);
2824                                 continue;
2825                         }
2826                         // words is always >= 1
2827                         if (!strcmp(word[0], "replace"))
2828                         {
2829                                 if (words == 3)
2830                                 {
2831                                         if (developer_loading.integer)
2832                                                 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
2833                                         skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2834                                         skinfileitem->next = skinfile->items;
2835                                         skinfile->items = skinfileitem;
2836                                         strlcpy (skinfileitem->name, word[1], sizeof (skinfileitem->name));
2837                                         strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2838                                 }
2839                                 else
2840                                         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]);
2841                         }
2842                         else if (words >= 2 && !strncmp(word[0], "tag_", 4))
2843                         {
2844                                 // tag name, like "tag_weapon,"
2845                                 // not used for anything (not even in Quake3)
2846                         }
2847                         else if (words >= 2 && !strcmp(word[1], ","))
2848                         {
2849                                 // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
2850                                 if (developer_loading.integer)
2851                                         Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
2852                                 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2853                                 skinfileitem->next = skinfile->items;
2854                                 skinfile->items = skinfileitem;
2855                                 strlcpy (skinfileitem->name, word[0], sizeof (skinfileitem->name));
2856                                 strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2857                         }
2858                         else
2859                                 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);
2860                 }
2861                 Mem_Free(text);
2862         }
2863         if (i)
2864                 loadmodel->numskins = i;
2865         return first;
2866 }
2867
2868 void Mod_FreeSkinFiles(skinfile_t *skinfile)
2869 {
2870         skinfile_t *next;
2871         skinfileitem_t *skinfileitem, *nextitem;
2872         for (;skinfile;skinfile = next)
2873         {
2874                 next = skinfile->next;
2875                 for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
2876                 {
2877                         nextitem = skinfileitem->next;
2878                         Mem_Free(skinfileitem);
2879                 }
2880                 Mem_Free(skinfile);
2881         }
2882 }
2883
2884 int Mod_CountSkinFiles(skinfile_t *skinfile)
2885 {
2886         int i;
2887         for (i = 0;skinfile;skinfile = skinfile->next, i++);
2888         return i;
2889 }
2890
2891 void Mod_SnapVertices(int numcomponents, int numvertices, float *vertices, float snap)
2892 {
2893         int i;
2894         double isnap = 1.0 / snap;
2895         for (i = 0;i < numvertices*numcomponents;i++)
2896                 vertices[i] = floor(vertices[i]*isnap)*snap;
2897 }
2898
2899 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
2900 {
2901         int i, outtriangles;
2902         float edgedir1[3], edgedir2[3], temp[3];
2903         // a degenerate triangle is one with no width (thickness, surface area)
2904         // these are characterized by having all 3 points colinear (along a line)
2905         // or having two points identical
2906         // the simplest check is to calculate the triangle's area
2907         for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
2908         {
2909                 // calculate first edge
2910                 VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir1);
2911                 VectorSubtract(vertex3f + inelement3i[2] * 3, vertex3f + inelement3i[0] * 3, edgedir2);
2912                 CrossProduct(edgedir1, edgedir2, temp);
2913                 if (VectorLength2(temp) < 0.001f)
2914                         continue; // degenerate triangle (no area)
2915                 // valid triangle (has area)
2916                 VectorCopy(inelement3i, outelement3i);
2917                 outelement3i += 3;
2918                 outtriangles++;
2919         }
2920         return outtriangles;
2921 }
2922
2923 void Mod_VertexRangeFromElements(int numelements, const int *elements, int *firstvertexpointer, int *lastvertexpointer)
2924 {
2925         int i, e;
2926         int firstvertex, lastvertex;
2927         if (numelements > 0 && elements)
2928         {
2929                 firstvertex = lastvertex = elements[0];
2930                 for (i = 1;i < numelements;i++)
2931                 {
2932                         e = elements[i];
2933                         firstvertex = min(firstvertex, e);
2934                         lastvertex = max(lastvertex, e);
2935                 }
2936         }
2937         else
2938                 firstvertex = lastvertex = 0;
2939         if (firstvertexpointer)
2940                 *firstvertexpointer = firstvertex;
2941         if (lastvertexpointer)
2942                 *lastvertexpointer = lastvertex;
2943 }
2944
2945 void Mod_MakeSortedSurfaces(dp_model_t *mod)
2946 {
2947         // make an optimal set of texture-sorted batches to draw...
2948         int j, t;
2949         int *firstsurfacefortexture;
2950         int *numsurfacesfortexture;
2951         if (!mod->sortedmodelsurfaces)
2952                 mod->sortedmodelsurfaces = (int *) Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->sortedmodelsurfaces));
2953         firstsurfacefortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*firstsurfacefortexture));
2954         numsurfacesfortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*numsurfacesfortexture));
2955         memset(numsurfacesfortexture, 0, mod->num_textures * sizeof(*numsurfacesfortexture));
2956         for (j = 0;j < mod->nummodelsurfaces;j++)
2957         {
2958                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2959                 int t = (int)(surface->texture - mod->data_textures);
2960                 numsurfacesfortexture[t]++;
2961         }
2962         j = 0;
2963         for (t = 0;t < mod->num_textures;t++)
2964         {
2965                 firstsurfacefortexture[t] = j;
2966                 j += numsurfacesfortexture[t];
2967         }
2968         for (j = 0;j < mod->nummodelsurfaces;j++)
2969         {
2970                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2971                 int t = (int)(surface->texture - mod->data_textures);
2972                 mod->sortedmodelsurfaces[firstsurfacefortexture[t]++] = j + mod->firstmodelsurface;
2973         }
2974         Mem_Free(firstsurfacefortexture);
2975         Mem_Free(numsurfacesfortexture);
2976 }
2977
2978 void Mod_BuildVBOs(void)
2979 {
2980         if (!loadmodel->surfmesh.num_vertices)
2981                 return;
2982
2983         if (gl_paranoid.integer && loadmodel->surfmesh.data_element3s && loadmodel->surfmesh.data_element3i)
2984         {
2985                 int i;
2986                 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2987                 {
2988                         if (loadmodel->surfmesh.data_element3s[i] != loadmodel->surfmesh.data_element3i[i])
2989                         {
2990                                 Con_Printf("Mod_BuildVBOs: element %u is incorrect (%u should be %u)\n", i, loadmodel->surfmesh.data_element3s[i], loadmodel->surfmesh.data_element3i[i]);
2991                                 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2992                         }
2993                 }
2994         }
2995
2996         // build r_vertexmesh_t array
2997         // (compressed interleaved array for D3D)
2998         if (!loadmodel->surfmesh.vertexmesh && vid.useinterleavedarrays)
2999         {
3000                 int vertexindex;
3001                 int numvertices = loadmodel->surfmesh.num_vertices;
3002                 r_vertexmesh_t *vertexmesh;
3003                 loadmodel->surfmesh.vertexmesh = vertexmesh = (r_vertexmesh_t*)Mem_Alloc(loadmodel->mempool, numvertices * sizeof(*loadmodel->surfmesh.vertexmesh));
3004                 for (vertexindex = 0;vertexindex < numvertices;vertexindex++, vertexmesh++)
3005                 {
3006                         VectorCopy(loadmodel->surfmesh.data_vertex3f + 3*vertexindex, vertexmesh->vertex3f);
3007                         VectorScale(loadmodel->surfmesh.data_svector3f + 3*vertexindex, 1.0f, vertexmesh->svector3f);
3008                         VectorScale(loadmodel->surfmesh.data_tvector3f + 3*vertexindex, 1.0f, vertexmesh->tvector3f);
3009                         VectorScale(loadmodel->surfmesh.data_normal3f + 3*vertexindex, 1.0f, vertexmesh->normal3f);
3010                         if (loadmodel->surfmesh.data_lightmapcolor4f)
3011                                 Vector4Copy(loadmodel->surfmesh.data_lightmapcolor4f + 4*vertexindex, vertexmesh->color4f);
3012                         Vector2Copy(loadmodel->surfmesh.data_texcoordtexture2f + 2*vertexindex, vertexmesh->texcoordtexture2f);
3013                         if (loadmodel->surfmesh.data_texcoordlightmap2f)
3014                                 Vector2Scale(loadmodel->surfmesh.data_texcoordlightmap2f + 2*vertexindex, 1.0f, vertexmesh->texcoordlightmap2f);
3015                 }
3016         }
3017
3018         // upload r_vertexmesh_t array as a buffer
3019         if (loadmodel->surfmesh.vertexmesh && !loadmodel->surfmesh.vertexmeshbuffer)
3020                 loadmodel->surfmesh.vertexmeshbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.vertexmesh, loadmodel->surfmesh.num_vertices * sizeof(*loadmodel->surfmesh.vertexmesh), loadmodel->name, false, false, false);
3021
3022         // upload vertex3f array as a buffer
3023         if (loadmodel->surfmesh.data_vertex3f && !loadmodel->surfmesh.vertex3fbuffer)
3024                 loadmodel->surfmesh.vertex3fbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.num_vertices * sizeof(float[3]), loadmodel->name, false, false, false);
3025
3026         // upload short indices as a buffer
3027         if (loadmodel->surfmesh.data_element3s && !loadmodel->surfmesh.data_element3s_indexbuffer)
3028                 loadmodel->surfmesh.data_element3s_indexbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_element3s, loadmodel->surfmesh.num_triangles * sizeof(short[3]), loadmodel->name, true, false, true);
3029
3030         // upload int indices as a buffer
3031         if (loadmodel->surfmesh.data_element3i && !loadmodel->surfmesh.data_element3i_indexbuffer && !loadmodel->surfmesh.data_element3s)
3032                 loadmodel->surfmesh.data_element3i_indexbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles * sizeof(int[3]), loadmodel->name, true, false, false);
3033
3034         // only build a vbo if one has not already been created (this is important for brush models which load specially)
3035         // vertex buffer is several arrays and we put them in the same buffer
3036         //
3037         // is this wise?  the texcoordtexture2f array is used with dynamic
3038         // vertex/svector/tvector/normal when rendering animated models, on the
3039         // other hand animated models don't use a lot of vertices anyway...
3040         if (!loadmodel->surfmesh.vbo_vertexbuffer && !vid.useinterleavedarrays)
3041         {
3042                 size_t size;
3043                 unsigned char *mem;
3044                 size = 0;
3045                 loadmodel->surfmesh.vbooffset_vertex3f           = size;if (loadmodel->surfmesh.data_vertex3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3046                 loadmodel->surfmesh.vbooffset_svector3f          = size;if (loadmodel->surfmesh.data_svector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3047                 loadmodel->surfmesh.vbooffset_tvector3f          = size;if (loadmodel->surfmesh.data_tvector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3048                 loadmodel->surfmesh.vbooffset_normal3f           = size;if (loadmodel->surfmesh.data_normal3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3049                 loadmodel->surfmesh.vbooffset_texcoordtexture2f  = size;if (loadmodel->surfmesh.data_texcoordtexture2f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
3050                 loadmodel->surfmesh.vbooffset_texcoordlightmap2f = size;if (loadmodel->surfmesh.data_texcoordlightmap2f) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
3051                 loadmodel->surfmesh.vbooffset_lightmapcolor4f    = size;if (loadmodel->surfmesh.data_lightmapcolor4f   ) size += loadmodel->surfmesh.num_vertices * sizeof(float[4]);
3052                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
3053                 if (loadmodel->surfmesh.data_vertex3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_vertex3f          , loadmodel->surfmesh.data_vertex3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3054                 if (loadmodel->surfmesh.data_svector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_svector3f         , loadmodel->surfmesh.data_svector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3055                 if (loadmodel->surfmesh.data_tvector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_tvector3f         , loadmodel->surfmesh.data_tvector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3056                 if (loadmodel->surfmesh.data_normal3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_normal3f          , loadmodel->surfmesh.data_normal3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3057                 if (loadmodel->surfmesh.data_texcoordtexture2f ) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordtexture2f , loadmodel->surfmesh.data_texcoordtexture2f , loadmodel->surfmesh.num_vertices * sizeof(float[2]));
3058                 if (loadmodel->surfmesh.data_texcoordlightmap2f) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordlightmap2f, loadmodel->surfmesh.data_texcoordlightmap2f, loadmodel->surfmesh.num_vertices * sizeof(float[2]));
3059                 if (loadmodel->surfmesh.data_lightmapcolor4f   ) memcpy(mem + loadmodel->surfmesh.vbooffset_lightmapcolor4f   , loadmodel->surfmesh.data_lightmapcolor4f   , loadmodel->surfmesh.num_vertices * sizeof(float[4]));
3060                 loadmodel->surfmesh.vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, loadmodel->name, false, false, false);
3061                 Mem_Free(mem);
3062         }
3063 }
3064
3065 extern cvar_t mod_obj_orientation;
3066 static void Mod_Decompile_OBJ(dp_model_t *model, const char *filename, const char *mtlfilename, const char *originalfilename)
3067 {
3068         int submodelindex, vertexindex, surfaceindex, triangleindex, textureindex, countvertices = 0, countsurfaces = 0, countfaces = 0, counttextures = 0;
3069         int a, b, c;
3070         const char *texname;
3071         const int *e;
3072         const float *v, *vn, *vt;
3073         size_t l;
3074         size_t outbufferpos = 0;
3075         size_t outbuffermax = 0x100000;
3076         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3077         const msurface_t *surface;
3078         const int maxtextures = 256;
3079         char *texturenames = (char *) Z_Malloc(maxtextures * MAX_QPATH);
3080         dp_model_t *submodel;
3081
3082         // construct the mtllib file
3083         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "# mtllib for %s exported by darkplaces engine\n", originalfilename);
3084         if (l > 0)
3085                 outbufferpos += l;
3086         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3087         {
3088                 countsurfaces++;
3089                 countvertices += surface->num_vertices;
3090                 countfaces += surface->num_triangles;
3091                 texname = (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default";
3092                 for (textureindex = 0;textureindex < counttextures;textureindex++)
3093                         if (!strcmp(texturenames + textureindex * MAX_QPATH, texname))
3094                                 break;
3095                 if (textureindex < counttextures)
3096                         continue; // already wrote this material entry
3097                 if (textureindex >= maxtextures)
3098                         continue; // just a precaution
3099                 textureindex = counttextures++;
3100                 strlcpy(texturenames + textureindex * MAX_QPATH, texname, MAX_QPATH);
3101                 if (outbufferpos >= outbuffermax >> 1)
3102                 {
3103                         outbuffermax *= 2;
3104                         oldbuffer = outbuffer;
3105                         outbuffer = (char *) Z_Malloc(outbuffermax);
3106                         memcpy(outbuffer, oldbuffer, outbufferpos);
3107                         Z_Free(oldbuffer);
3108                 }
3109                 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");
3110                 if (l > 0)
3111                         outbufferpos += l;
3112         }
3113
3114         // write the mtllib file
3115         FS_WriteFile(mtlfilename, outbuffer, outbufferpos);
3116
3117         // construct the obj file
3118         outbufferpos = 0;
3119         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);
3120         if (l > 0)
3121                 outbufferpos += l;
3122
3123         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)
3124         {
3125                 if (outbufferpos >= outbuffermax >> 1)
3126                 {
3127                         outbuffermax *= 2;
3128                         oldbuffer = outbuffer;
3129                         outbuffer = (char *) Z_Malloc(outbuffermax);
3130                         memcpy(outbuffer, oldbuffer, outbufferpos);
3131                         Z_Free(oldbuffer);
3132                 }
3133                 if(mod_obj_orientation.integer)
3134                         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]);
3135                 else
3136                         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]);
3137                 if (l > 0)
3138                         outbufferpos += l;
3139         }
3140
3141         for (submodelindex = 0;submodelindex < max(1, model->brush.numsubmodels);submodelindex++)
3142         {
3143                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "o %i\n", submodelindex);
3144                 if (l > 0)
3145                         outbufferpos += l;
3146                 submodel = model->brush.numsubmodels ? model->brush.submodels[submodelindex] : model;
3147                 for (surfaceindex = 0;surfaceindex < submodel->nummodelsurfaces;surfaceindex++)
3148                 {
3149                         surface = model->data_surfaces + submodel->sortedmodelsurfaces[surfaceindex];
3150                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "usemtl %s\n", (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default");
3151                         if (l > 0)
3152                                 outbufferpos += l;
3153                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3154                         {
3155                                 if (outbufferpos >= outbuffermax >> 1)
3156                                 {
3157                                         outbuffermax *= 2;
3158                                         oldbuffer = outbuffer;
3159                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3160                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3161                                         Z_Free(oldbuffer);
3162                                 }
3163                                 a = e[0]+1;
3164                                 b = e[1]+1;
3165                                 c = e[2]+1;
3166                                 if(mod_obj_orientation.integer)
3167                                         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);
3168                                 else
3169                                         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);
3170                                 if (l > 0)
3171                                         outbufferpos += l;
3172                         }
3173                 }
3174         }
3175
3176         // write the obj file
3177         FS_WriteFile(filename, outbuffer, outbufferpos);
3178
3179         // clean up
3180         Z_Free(outbuffer);
3181         Z_Free(texturenames);
3182
3183         // print some stats
3184         Con_Printf("Wrote %s (%i bytes, %i vertices, %i faces, %i surfaces with %i distinct textures)\n", filename, (int)outbufferpos, countvertices, countfaces, countsurfaces, counttextures);
3185 }
3186
3187 static void Mod_Decompile_SMD(dp_model_t *model, const char *filename, int firstpose, int numposes, qboolean writetriangles)
3188 {
3189         int countnodes = 0, counttriangles = 0, countframes = 0;
3190         int surfaceindex;
3191         int triangleindex;
3192         int transformindex;
3193         int poseindex;
3194         int cornerindex;
3195         const int *e;
3196         size_t l;
3197         size_t outbufferpos = 0;
3198         size_t outbuffermax = 0x100000;
3199         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3200         const msurface_t *surface;
3201         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "version 1\nnodes\n");
3202         if (l > 0)
3203                 outbufferpos += l;
3204         for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3205         {
3206                 if (outbufferpos >= outbuffermax >> 1)
3207                 {
3208                         outbuffermax *= 2;
3209                         oldbuffer = outbuffer;
3210                         outbuffer = (char *) Z_Malloc(outbuffermax);
3211                         memcpy(outbuffer, oldbuffer, outbufferpos);
3212                         Z_Free(oldbuffer);
3213                 }
3214                 countnodes++;
3215                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i \"%s\" %3i\n", transformindex, model->data_bones[transformindex].name, model->data_bones[transformindex].parent);
3216                 if (l > 0)
3217                         outbufferpos += l;
3218         }
3219         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\nskeleton\n");
3220         if (l > 0)
3221                 outbufferpos += l;
3222         for (poseindex = 0;poseindex < numposes;poseindex++)
3223         {
3224                 countframes++;
3225                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "time %i\n", poseindex);
3226                 if (l > 0)
3227                         outbufferpos += l;
3228                 for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3229                 {
3230                         float angles[3];
3231                         float mtest[4][3];
3232                         matrix4x4_t posematrix;
3233                         if (outbufferpos >= outbuffermax >> 1)
3234                         {
3235                                 outbuffermax *= 2;
3236                                 oldbuffer = outbuffer;
3237                                 outbuffer = (char *) Z_Malloc(outbuffermax);
3238                                 memcpy(outbuffer, oldbuffer, outbufferpos);
3239                                 Z_Free(oldbuffer);
3240                         }
3241
3242                         // strangely the smd angles are for a transposed matrix, so we
3243                         // have to generate a transposed matrix, then convert that...
3244                         Matrix4x4_FromBonePose7s(&posematrix, model->num_posescale, model->data_poses7s + 7*(model->num_bones * poseindex + transformindex));
3245                         Matrix4x4_ToArray12FloatGL(&posematrix, mtest[0]);
3246                         AnglesFromVectors(angles, mtest[0], mtest[2], false);
3247                         if (angles[0] >= 180) angles[0] -= 360;
3248                         if (angles[1] >= 180) angles[1] -= 360;
3249                         if (angles[2] >= 180) angles[2] -= 360;
3250
3251 #if 0
3252 {
3253                         float a = DEG2RAD(angles[ROLL]);
3254                         float b = DEG2RAD(angles[PITCH]);
3255                         float c = DEG2RAD(angles[YAW]);
3256                         float cy, sy, cp, sp, cr, sr;
3257                         float test[4][3];
3258                         // smd matrix construction, for comparing
3259                         sy = sin(c);
3260                         cy = cos(c);
3261                         sp = sin(b);
3262                         cp = cos(b);
3263                         sr = sin(a);
3264                         cr = cos(a);
3265
3266                         test[0][0] = cp*cy;
3267                         test[0][1] = cp*sy;
3268                         test[0][2] = -sp;
3269                         test[1][0] = sr*sp*cy+cr*-sy;
3270                         test[1][1] = sr*sp*sy+cr*cy;
3271                         test[1][2] = sr*cp;
3272                         test[2][0] = (cr*sp*cy+-sr*-sy);
3273                         test[2][1] = (cr*sp*sy+-sr*cy);
3274                         test[2][2] = cr*cp;
3275                         test[3][0] = pose[9];
3276                         test[3][1] = pose[10];
3277                         test[3][2] = pose[11];
3278 }
3279 #endif
3280                         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]));
3281                         if (l > 0)
3282                                 outbufferpos += l;
3283                 }
3284         }
3285         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3286         if (l > 0)
3287                 outbufferpos += l;
3288         if (writetriangles)
3289         {
3290                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "triangles\n");
3291                 if (l > 0)
3292                         outbufferpos += l;
3293                 for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3294                 {
3295                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3296                         {
3297                                 counttriangles++;
3298                                 if (outbufferpos >= outbuffermax >> 1)
3299                                 {
3300                                         outbuffermax *= 2;
3301                                         oldbuffer = outbuffer;
3302                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3303                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3304                                         Z_Free(oldbuffer);
3305                                 }
3306                                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%s\n", surface->texture && surface->texture->name[0] ? surface->texture->name : "default.bmp");
3307                                 if (l > 0)
3308                                         outbufferpos += l;
3309                                 for (cornerindex = 0;cornerindex < 3;cornerindex++)
3310                                 {
3311                                         const int index = e[2-cornerindex];
3312                                         const float *v = model->surfmesh.data_vertex3f + index * 3;
3313                                         const float *vn = model->surfmesh.data_normal3f + index * 3;
3314                                         const float *vt = model->surfmesh.data_texcoordtexture2f + index * 2;
3315                                         const int b = model->surfmesh.blends[index];
3316                                         if (b < model->num_bones)
3317                                                 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]);
3318                                         else
3319                                         {
3320                                                 const blendweights_t *w = model->surfmesh.data_blendweights + b - model->num_bones;
3321                                                 const unsigned char *wi = w->index;
3322                                                 const unsigned char *wf = w->influence;
3323                                             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);
3324                                                 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);
3325                                                 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);
3326                                                 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]);
3327                                         }
3328                                         if (l > 0)
3329                                                 outbufferpos += l;
3330                                 }
3331                         }
3332                 }
3333                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3334                 if (l > 0)
3335                         outbufferpos += l;
3336         }
3337
3338         FS_WriteFile(filename, outbuffer, outbufferpos);
3339         Z_Free(outbuffer);
3340
3341         Con_Printf("Wrote %s (%i bytes, %i nodes, %i frames, %i triangles)\n", filename, (int)outbufferpos, countnodes, countframes, counttriangles);
3342 }
3343
3344 /*
3345 ================
3346 Mod_Decompile_f
3347
3348 decompiles a model to editable files
3349 ================
3350 */
3351 static void Mod_Decompile_f(void)
3352 {
3353         int i, j, k, l, first, count;
3354         dp_model_t *mod;
3355         char inname[MAX_QPATH];
3356         char outname[MAX_QPATH];
3357         char mtlname[MAX_QPATH];
3358         char basename[MAX_QPATH];
3359         char animname[MAX_QPATH];
3360         char animname2[MAX_QPATH];
3361         char zymtextbuffer[16384];
3362         char dpmtextbuffer[16384];
3363         char framegroupstextbuffer[16384];
3364         int zymtextsize = 0;
3365         int dpmtextsize = 0;
3366         int framegroupstextsize = 0;
3367         char vabuf[1024];
3368
3369         if (Cmd_Argc() != 2)
3370         {
3371                 Con_Print("usage: modeldecompile <filename>\n");
3372                 return;
3373         }
3374
3375         strlcpy(inname, Cmd_Argv(1), sizeof(inname));
3376         FS_StripExtension(inname, basename, sizeof(basename));
3377
3378         mod = Mod_ForName(inname, false, true, inname[0] == '*' ? cl.model_name[1] : NULL);
3379         if (!mod)
3380         {
3381                 Con_Print("No such model\n");
3382                 return;
3383         }
3384         if (mod->brush.submodel)
3385         {
3386                 // if we're decompiling a submodel, be sure to give it a proper name based on its parent
3387                 FS_StripExtension(cl.model_name[1], outname, sizeof(outname));
3388                 dpsnprintf(basename, sizeof(basename), "%s/%s", outname, mod->name);
3389                 outname[0] = 0;
3390         }
3391         if (!mod->surfmesh.num_triangles)
3392         {
3393                 Con_Print("Empty model (or sprite)\n");
3394                 return;
3395         }
3396
3397         // export OBJ if possible (not on sprites)
3398         if (mod->surfmesh.num_triangles)
3399         {
3400                 dpsnprintf(outname, sizeof(outname), "%s_decompiled.obj", basename);
3401                 dpsnprintf(mtlname, sizeof(mtlname), "%s_decompiled.mtl", basename);
3402                 Mod_Decompile_OBJ(mod, outname, mtlname, inname);
3403         }
3404
3405         // export SMD if possible (only for skeletal models)
3406         if (mod->surfmesh.num_triangles && mod->num_bones)
3407         {
3408                 dpsnprintf(outname, sizeof(outname), "%s_decompiled/ref1.smd", basename);
3409                 Mod_Decompile_SMD(mod, outname, 0, 1, true);
3410                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "output out.zym\nscale 1\norigin 0 0 0\nmesh ref1.smd\n");
3411                 if (l > 0) zymtextsize += l;
3412                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "outputdir .\nmodel out\nscale 1\norigin 0 0 0\nscene ref1.smd\n");
3413                 if (l > 0) dpmtextsize += l;
3414                 for (i = 0;i < mod->numframes;i = j)
3415                 {
3416                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3417                         first = mod->animscenes[i].firstframe;
3418                         if (mod->animscenes[i].framecount > 1)
3419                         {
3420                                 // framegroup anim
3421                                 count = mod->animscenes[i].framecount;
3422                                 j = i + 1;
3423                         }
3424                         else
3425                         {
3426                                 // individual frame
3427                                 // check for additional frames with same name
3428                                 for (l = 0, k = strlen(animname);animname[l];l++)
3429                                         if(animname[l] < '0' || animname[l] > '9')
3430                                                 k = l + 1;
3431                                 if(k > 0 && animname[k-1] == '_')
3432                                         --k;
3433                                 animname[k] = 0;
3434                                 count = mod->num_poses - first;
3435                                 for (j = i + 1;j < mod->numframes;j++)
3436                                 {
3437                                         strlcpy(animname2, mod->animscenes[j].name, sizeof(animname2));
3438                                         for (l = 0, k = strlen(animname2);animname2[l];l++)
3439                                                 if(animname2[l] < '0' || animname2[l] > '9')
3440                                                         k = l + 1;
3441                                         if(k > 0 && animname[k-1] == '_')
3442                                                 --k;
3443                                         animname2[k] = 0;
3444                                         if (strcmp(animname2, animname) || mod->animscenes[j].framecount > 1)
3445                                         {
3446                                                 count = mod->animscenes[j].firstframe - first;
3447                                                 break;
3448                                         }
3449                                 }
3450                                 // if it's only one frame, use the original frame name
3451                                 if (j == i + 1)
3452                                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3453
3454                         }
3455                         dpsnprintf(outname, sizeof(outname), "%s_decompiled/%s.smd", basename, animname);
3456                         Mod_Decompile_SMD(mod, outname, first, count, false);
3457                         if (zymtextsize < (int)sizeof(zymtextbuffer) - 100)
3458                         {
3459                                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3460                                 if (l > 0) zymtextsize += l;
3461                         }
3462                         if (dpmtextsize < (int)sizeof(dpmtextbuffer) - 100)
3463                         {
3464                                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3465                                 if (l > 0) dpmtextsize += l;
3466                         }
3467                         if (framegroupstextsize < (int)sizeof(framegroupstextbuffer) - 100)
3468                         {
3469                                 l = dpsnprintf(framegroupstextbuffer + framegroupstextsize, sizeof(framegroupstextbuffer) - framegroupstextsize, "%d %d %f %d // %s\n", first, count, mod->animscenes[i].framerate, mod->animscenes[i].loop, animname);
3470                                 if (l > 0) framegroupstextsize += l;
3471                         }
3472                 }
3473                 if (zymtextsize)
3474                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_zym.txt", basename), zymtextbuffer, (fs_offset_t)zymtextsize);
3475                 if (dpmtextsize)
3476                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_dpm.txt", basename), dpmtextbuffer, (fs_offset_t)dpmtextsize);
3477                 if (framegroupstextsize)
3478                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled.framegroups", basename), framegroupstextbuffer, (fs_offset_t)framegroupstextsize);
3479         }
3480 }
3481
3482 void Mod_AllocLightmap_Init(mod_alloclightmap_state_t *state, int width, int height)
3483 {
3484         int y;
3485         memset(state, 0, sizeof(*state));
3486         state->width = width;
3487         state->height = height;
3488         state->currentY = 0;
3489         state->rows = (mod_alloclightmap_row_t *)Mem_Alloc(loadmodel->mempool, state->height * sizeof(*state->rows));
3490         for (y = 0;y < state->height;y++)
3491         {
3492                 state->rows[y].currentX = 0;
3493                 state->rows[y].rowY = -1;
3494         }
3495 }
3496
3497 void Mod_AllocLightmap_Reset(mod_alloclightmap_state_t *state)
3498 {
3499         int y;
3500         state->currentY = 0;
3501         for (y = 0;y < state->height;y++)
3502         {
3503                 state->rows[y].currentX = 0;
3504                 state->rows[y].rowY = -1;
3505         }
3506 }
3507
3508 void Mod_AllocLightmap_Free(mod_alloclightmap_state_t *state)
3509 {
3510         if (state->rows)
3511                 Mem_Free(state->rows);
3512         memset(state, 0, sizeof(*state));
3513 }
3514
3515 qboolean Mod_AllocLightmap_Block(mod_alloclightmap_state_t *state, int blockwidth, int blockheight, int *outx, int *outy)
3516 {
3517         mod_alloclightmap_row_t *row;
3518         int y;
3519
3520         row = state->rows + blockheight;
3521         if ((row->rowY < 0) || (row->currentX + blockwidth > state->width))
3522         {
3523                 if (state->currentY + blockheight <= state->height)
3524                 {
3525                         // use the current allocation position
3526                         row->rowY = state->currentY;
3527                         row->currentX = 0;
3528                         state->currentY += blockheight;
3529                 }
3530                 else
3531                 {
3532                         // find another position
3533                         for (y = blockheight;y < state->height;y++)
3534                         {
3535                                 if ((state->rows[y].rowY >= 0) && (state->rows[y].currentX + blockwidth <= state->width))
3536                                 {
3537                                         row = state->rows + y;
3538                                         break;
3539                                 }
3540                         }
3541                         if (y == state->height)
3542                                 return false;
3543                 }
3544         }
3545         *outy = row->rowY;
3546         *outx = row->currentX;
3547         row->currentX += blockwidth;
3548
3549         return true;
3550 }
3551
3552 typedef struct lightmapsample_s
3553 {
3554         float pos[3];
3555         float sh1[4][3];
3556         float *vertex_color;
3557         unsigned char *lm_bgr;
3558         unsigned char *lm_dir;
3559 }
3560 lightmapsample_t;
3561
3562 typedef struct lightmapvertex_s
3563 {
3564         int index;
3565         float pos[3];
3566         float normal[3];
3567         float texcoordbase[2];
3568         float texcoordlightmap[2];
3569         float lightcolor[4];
3570 }
3571 lightmapvertex_t;
3572
3573 typedef struct lightmaptriangle_s
3574 {
3575         int triangleindex;
3576         int surfaceindex;
3577         int lightmapindex;
3578         int axis;
3579         int lmoffset[2];
3580         int lmsize[2];
3581         // 2D modelspace coordinates of min corner
3582         // snapped to lightmap grid but not in grid coordinates
3583         float lmbase[2];
3584         // 2D modelspace to lightmap coordinate scale
3585         float lmscale[2];
3586         float vertex[3][3];
3587         float mins[3];
3588         float maxs[3];
3589 }
3590 lightmaptriangle_t;
3591
3592 typedef struct lightmaplight_s
3593 {
3594         float origin[3];
3595         float radius;
3596         float iradius;
3597         float radius2;
3598         float color[3];
3599         svbsp_t svbsp;
3600 }
3601 lightmaplight_t;
3602
3603 lightmaptriangle_t *mod_generatelightmaps_lightmaptriangles;
3604
3605 #define MAX_LIGHTMAPSAMPLES 64
3606 static int mod_generatelightmaps_numoffsets[3];
3607 static float mod_generatelightmaps_offsets[3][MAX_LIGHTMAPSAMPLES][3];
3608
3609 static int mod_generatelightmaps_numlights;
3610 static lightmaplight_t *mod_generatelightmaps_lightinfo;
3611
3612 extern cvar_t r_shadow_lightattenuationdividebias;
3613 extern cvar_t r_shadow_lightattenuationlinearscale;
3614
3615 static void Mod_GenerateLightmaps_LightPoint(dp_model_t *model, const vec3_t pos, vec3_t ambient, vec3_t diffuse, vec3_t lightdir)
3616 {
3617         int i;
3618         int index;
3619         int result;
3620         float relativepoint[3];
3621         float color[3];
3622         float dir[3];
3623         float dist;
3624         float dist2;
3625         float intensity;
3626         float sample[5*3];
3627         float lightorigin[3];
3628         float lightradius;
3629         float lightradius2;
3630         float lightiradius;
3631         float lightcolor[3];
3632         trace_t trace;
3633         for (i = 0;i < 5*3;i++)
3634                 sample[i] = 0.0f;
3635         for (index = 0;;index++)
3636         {
3637                 result = R_Shadow_GetRTLightInfo(index, lightorigin, &lightradius, lightcolor);
3638                 if (result < 0)
3639                         break;
3640                 if (result == 0)
3641                         continue;
3642                 lightradius2 = lightradius * lightradius;
3643                 VectorSubtract(lightorigin, pos, relativepoint);
3644                 dist2 = VectorLength2(relativepoint);
3645                 if (dist2 >= lightradius2)
3646                         continue;
3647                 lightiradius = 1.0f / lightradius;
3648                 dist = sqrt(dist2) * lightiradius;
3649                 intensity = (1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist);
3650                 if (intensity <= 0.0f)
3651                         continue;
3652                 if (model && model->TraceLine)
3653                 {
3654                         model->TraceLine(model, NULL, NULL, &trace, pos, lightorigin, SUPERCONTENTS_VISBLOCKERMASK);
3655                         if (trace.fraction < 1)
3656                                 continue;
3657                 }
3658                 // scale down intensity to add to both ambient and diffuse
3659                 //intensity *= 0.5f;
3660                 VectorNormalize(relativepoint);
3661                 VectorScale(lightcolor, intensity, color);
3662                 VectorMA(sample    , 0.5f            , color, sample    );
3663                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3664                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3665                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3666                 // calculate a weighted average light direction as well
3667                 intensity *= VectorLength(color);
3668                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3669         }
3670         // calculate the direction we'll use to reduce the sample to a directional light source
3671         VectorCopy(sample + 12, dir);
3672         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3673         VectorNormalize(dir);
3674         // extract the diffuse color along the chosen direction and scale it
3675         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]);
3676         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]);
3677         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]);
3678         // subtract some of diffuse from ambient
3679         VectorMA(sample, -0.333f, diffuse, ambient);
3680         // store the normalized lightdir
3681         VectorCopy(dir, lightdir);
3682 }
3683
3684 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(const dp_model_t *model, svbsp_t *svbsp, const float *mins, const float *maxs)
3685 {
3686         int surfaceindex;
3687         int triangleindex;
3688         const msurface_t *surface;
3689         const float *vertex3f = model->surfmesh.data_vertex3f;
3690         const int *element3i = model->surfmesh.data_element3i;
3691         const int *e;
3692         float v2[3][3];
3693         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->nummodelsurfaces;surfaceindex++, surface++)
3694         {
3695                 if (!BoxesOverlap(surface->mins, surface->maxs, mins, maxs))
3696                         continue;
3697                 if (surface->texture->basematerialflags & MATERIALFLAG_NOSHADOW)
3698                         continue;
3699                 for (triangleindex = 0, e = element3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3700                 {
3701                         VectorCopy(vertex3f + 3*e[0], v2[0]);
3702                         VectorCopy(vertex3f + 3*e[1], v2[1]);
3703                         VectorCopy(vertex3f + 3*e[2], v2[2]);
3704                         SVBSP_AddPolygon(svbsp, 3, v2[0], true, NULL, NULL, 0);
3705                 }
3706         }
3707 }
3708
3709 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(dp_model_t *model, lightmaplight_t *lightinfo)
3710 {
3711         int maxnodes = 1<<14;
3712         svbsp_node_t *nodes;
3713         float origin[3];
3714         float mins[3];
3715         float maxs[3];
3716         svbsp_t svbsp;
3717         VectorSet(mins, lightinfo->origin[0] - lightinfo->radius, lightinfo->origin[1] - lightinfo->radius, lightinfo->origin[2] - lightinfo->radius);
3718         VectorSet(maxs, lightinfo->origin[0] + lightinfo->radius, lightinfo->origin[1] + lightinfo->radius, lightinfo->origin[2] + lightinfo->radius);
3719         VectorCopy(lightinfo->origin, origin);
3720         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3721         for (;;)
3722         {
3723                 SVBSP_Init(&svbsp, origin, maxnodes, nodes);
3724                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(model, &svbsp, mins, maxs);
3725                 if (svbsp.ranoutofnodes)
3726                 {
3727                         maxnodes *= 16;
3728                         if (maxnodes > 1<<22)
3729                         {
3730                                 Mem_Free(nodes);
3731                                 return;
3732                         }
3733                         Mem_Free(nodes);
3734                         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3735                 }
3736                 else
3737                         break;
3738         }
3739         if (svbsp.numnodes > 0)
3740         {
3741                 svbsp.nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, svbsp.numnodes * sizeof(*nodes));
3742                 memcpy(svbsp.nodes, nodes, svbsp.numnodes * sizeof(*nodes));
3743                 lightinfo->svbsp = svbsp;
3744         }
3745         Mem_Free(nodes);
3746 }
3747
3748 static void Mod_GenerateLightmaps_CreateLights(dp_model_t *model)
3749 {
3750         int index;
3751         int result;
3752         lightmaplight_t *lightinfo;
3753         float origin[3];
3754         float radius;
3755         float color[3];
3756         mod_generatelightmaps_numlights = 0;
3757         for (index = 0;;index++)
3758         {
3759                 result = R_Shadow_GetRTLightInfo(index, origin, &radius, color);
3760                 if (result < 0)
3761                         break;
3762                 if (result > 0)
3763                         mod_generatelightmaps_numlights++;
3764         }
3765         if (mod_generatelightmaps_numlights > 0)
3766         {
3767                 mod_generatelightmaps_lightinfo = (lightmaplight_t *)Mem_Alloc(tempmempool, mod_generatelightmaps_numlights * sizeof(*mod_generatelightmaps_lightinfo));
3768                 lightinfo = mod_generatelightmaps_lightinfo;
3769                 for (index = 0;;index++)
3770                 {
3771                         result = R_Shadow_GetRTLightInfo(index, lightinfo->origin, &lightinfo->radius, lightinfo->color);
3772                         if (result < 0)
3773                                 break;
3774                         if (result > 0)
3775                                 lightinfo++;
3776                 }
3777         }
3778         for (index = 0, lightinfo = mod_generatelightmaps_lightinfo;index < mod_generatelightmaps_numlights;index++, lightinfo++)
3779         {
3780                 lightinfo->iradius = 1.0f / lightinfo->radius;
3781                 lightinfo->radius2 = lightinfo->radius * lightinfo->radius;
3782                 // TODO: compute svbsp
3783                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(model, lightinfo);
3784         }
3785 }
3786
3787 static void Mod_GenerateLightmaps_DestroyLights(dp_model_t *model)
3788 {
3789         int i;
3790         if (mod_generatelightmaps_lightinfo)
3791         {
3792                 for (i = 0;i < mod_generatelightmaps_numlights;i++)
3793                         if (mod_generatelightmaps_lightinfo[i].svbsp.nodes)
3794                                 Mem_Free(mod_generatelightmaps_lightinfo[i].svbsp.nodes);
3795                 Mem_Free(mod_generatelightmaps_lightinfo);
3796         }
3797         mod_generatelightmaps_lightinfo = NULL;
3798         mod_generatelightmaps_numlights = 0;
3799 }
3800
3801 static qboolean Mod_GenerateLightmaps_SamplePoint_SVBSP(const svbsp_t *svbsp, const float *pos)
3802 {
3803         const svbsp_node_t *node;
3804         const svbsp_node_t *nodes = svbsp->nodes;
3805         int num = 0;
3806         while (num >= 0)
3807         {
3808                 node = nodes + num;
3809                 num = node->children[DotProduct(node->plane, pos) < node->plane[3]];
3810         }
3811         return num == -1; // true if empty, false if solid (shadowed)
3812 }
3813
3814 static void Mod_GenerateLightmaps_SamplePoint(const float *pos, const float *normal, float *sample, int numoffsets, const float *offsets)
3815 {
3816         int i;
3817         float relativepoint[3];
3818         float color[3];
3819         float offsetpos[3];
3820         float dist;
3821         float dist2;
3822         float intensity;
3823         int offsetindex;
3824         int hits;
3825         int tests;
3826         const lightmaplight_t *lightinfo;
3827         trace_t trace;
3828         for (i = 0;i < 5*3;i++)
3829                 sample[i] = 0.0f;
3830         for (i = 0, lightinfo = mod_generatelightmaps_lightinfo;i < mod_generatelightmaps_numlights;i++, lightinfo++)
3831         {
3832                 //R_SampleRTLights(pos, sample, numoffsets, offsets);
3833                 VectorSubtract(lightinfo->origin, pos, relativepoint);
3834                 // don't accept light from behind a surface, it causes bad shading
3835                 if (normal && DotProduct(relativepoint, normal) <= 0)
3836                         continue;
3837                 dist2 = VectorLength2(relativepoint);
3838                 if (dist2 >= lightinfo->radius2)
3839                         continue;
3840                 dist = sqrt(dist2) * lightinfo->iradius;
3841                 intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
3842                 if (intensity <= 0)
3843                         continue;
3844                 if (cl.worldmodel && cl.worldmodel->TraceLine && numoffsets > 0)
3845                 {
3846                         hits = 0;
3847                         tests = 1;
3848                         if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, pos))
3849                                 hits++;
3850                         for (offsetindex = 1;offsetindex < numoffsets;offsetindex++)
3851                         {
3852                                 VectorAdd(pos, offsets + 3*offsetindex, offsetpos);
3853                                 if (!normal)
3854                                 {
3855                                         // for light grid we'd better check visibility of the offset point
3856                                         cl.worldmodel->TraceLine(cl.worldmodel, NULL, NULL, &trace, pos, offsetpos, SUPERCONTENTS_VISBLOCKERMASK);
3857                                         if (trace.fraction < 1)
3858                                                 VectorLerp(pos, trace.fraction, offsetpos, offsetpos);
3859                                 }
3860                                 tests++;
3861                                 if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, offsetpos))
3862                                         hits++;
3863                         }
3864                         if (!hits)
3865                                 continue;
3866                         // scale intensity according to how many rays succeeded
3867                         // we know one test is valid, half of the rest will fail...
3868                         //if (normal && tests > 1)
3869                         //      intensity *= (tests - 1.0f) / tests;
3870                         intensity *= (float)hits / tests;
3871                 }
3872                 // scale down intensity to add to both ambient and diffuse
3873                 //intensity *= 0.5f;
3874                 VectorNormalize(relativepoint);
3875                 VectorScale(lightinfo->color, intensity, color);
3876                 VectorMA(sample    , 0.5f            , color, sample    );
3877                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3878                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3879                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3880                 // calculate a weighted average light direction as well
3881                 intensity *= VectorLength(color);
3882                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3883         }
3884 }
3885
3886 static void Mod_GenerateLightmaps_LightmapSample(const float *pos, const float *normal, unsigned char *lm_bgr, unsigned char *lm_dir)
3887 {
3888         float sample[5*3];
3889         float color[3];
3890         float dir[3];
3891         float f;
3892         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[0], mod_generatelightmaps_offsets[0][0]);
3893         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3894         VectorCopy(sample + 12, dir);
3895         VectorNormalize(dir);
3896         //VectorAdd(dir, normal, dir);
3897         //VectorNormalize(dir);
3898         f = DotProduct(dir, normal);
3899         f = max(0, f) * 255.0f;
3900         VectorScale(sample, f, color);
3901         //VectorCopy(normal, dir);
3902         VectorSet(dir, (dir[0]+1.0f)*127.5f, (dir[1]+1.0f)*127.5f, (dir[2]+1.0f)*127.5f);
3903         lm_bgr[0] = (unsigned char)bound(0.0f, color[2], 255.0f);
3904         lm_bgr[1] = (unsigned char)bound(0.0f, color[1], 255.0f);
3905         lm_bgr[2] = (unsigned char)bound(0.0f, color[0], 255.0f);
3906         lm_bgr[3] = 255;
3907         lm_dir[0] = (unsigned char)dir[2];
3908         lm_dir[1] = (unsigned char)dir[1];
3909         lm_dir[2] = (unsigned char)dir[0];
3910         lm_dir[3] = 255;
3911 }
3912
3913 static void Mod_GenerateLightmaps_VertexSample(const float *pos, const float *normal, float *vertex_color)
3914 {
3915         float sample[5*3];
3916         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[1], mod_generatelightmaps_offsets[1][0]);
3917         VectorCopy(sample, vertex_color);
3918 }
3919
3920 static void Mod_GenerateLightmaps_GridSample(const float *pos, q3dlightgrid_t *s)
3921 {
3922         float sample[5*3];
3923         float ambient[3];
3924         float diffuse[3];
3925         float dir[3];
3926         Mod_GenerateLightmaps_SamplePoint(pos, NULL, sample, mod_generatelightmaps_numoffsets[2], mod_generatelightmaps_offsets[2][0]);
3927         // calculate the direction we'll use to reduce the sample to a directional light source
3928         VectorCopy(sample + 12, dir);
3929         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3930         VectorNormalize(dir);
3931         // extract the diffuse color along the chosen direction and scale it
3932         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]) * 127.5f;
3933         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]) * 127.5f;
3934         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]) * 127.5f;
3935         // scale the ambient from 0-2 to 0-255 and subtract some of diffuse
3936         VectorScale(sample, 127.5f, ambient);
3937         VectorMA(ambient, -0.333f, diffuse, ambient);
3938         // encode to the grid format
3939         s->ambientrgb[0] = (unsigned char)bound(0.0f, ambient[0], 255.0f);
3940         s->ambientrgb[1] = (unsigned char)bound(0.0f, ambient[1], 255.0f);
3941         s->ambientrgb[2] = (unsigned char)bound(0.0f, ambient[2], 255.0f);
3942         s->diffusergb[0] = (unsigned char)bound(0.0f, diffuse[0], 255.0f);
3943         s->diffusergb[1] = (unsigned char)bound(0.0f, diffuse[1], 255.0f);
3944         s->diffusergb[2] = (unsigned char)bound(0.0f, diffuse[2], 255.0f);
3945         if (dir[2] >= 0.99f) {s->diffusepitch = 0;s->diffuseyaw = 0;}
3946         else if (dir[2] <= -0.99f) {s->diffusepitch = 128;s->diffuseyaw = 0;}
3947         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));}
3948 }
3949
3950 static void Mod_GenerateLightmaps_InitSampleOffsets(dp_model_t *model)
3951 {
3952         float radius[3];
3953         float temp[3];
3954         int i, j;
3955         memset(mod_generatelightmaps_offsets, 0, sizeof(mod_generatelightmaps_offsets));
3956         mod_generatelightmaps_numoffsets[0] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_lightmapsamples.integer);
3957         mod_generatelightmaps_numoffsets[1] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_vertexsamples.integer);
3958         mod_generatelightmaps_numoffsets[2] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_gridsamples.integer);
3959         radius[0] = mod_generatelightmaps_lightmapradius.value;
3960         radius[1] = mod_generatelightmaps_vertexradius.value;
3961         radius[2] = mod_generatelightmaps_gridradius.value;
3962         for (i = 0;i < 3;i++)
3963         {
3964                 for (j = 1;j < mod_generatelightmaps_numoffsets[i];j++)
3965                 {
3966                         VectorRandom(temp);
3967                         VectorScale(temp, radius[i], mod_generatelightmaps_offsets[i][j]);
3968                 }
3969         }
3970 }
3971
3972 static void Mod_GenerateLightmaps_DestroyLightmaps(dp_model_t *model)
3973 {
3974         msurface_t *surface;
3975         int surfaceindex;
3976         int i;
3977         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3978         {
3979                 surface = model->data_surfaces + surfaceindex;
3980                 surface->lightmaptexture = NULL;
3981                 surface->deluxemaptexture = NULL;
3982         }
3983         if (model->brushq3.data_lightmaps)
3984         {
3985                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3986                         if (model->brushq3.data_lightmaps[i])
3987                                 R_FreeTexture(model->brushq3.data_lightmaps[i]);
3988                 Mem_Free(model->brushq3.data_lightmaps);
3989                 model->brushq3.data_lightmaps = NULL;
3990         }
3991         if (model->brushq3.data_deluxemaps)
3992         {
3993                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3994                         if (model->brushq3.data_deluxemaps[i])
3995                                 R_FreeTexture(model->brushq3.data_deluxemaps[i]);
3996                 Mem_Free(model->brushq3.data_deluxemaps);
3997                 model->brushq3.data_deluxemaps = NULL;
3998         }
3999 }
4000
4001 static void Mod_GenerateLightmaps_UnweldTriangles(dp_model_t *model)
4002 {
4003         msurface_t *surface;
4004         int surfaceindex;
4005         int vertexindex;
4006         int outvertexindex;
4007         int i;
4008         const int *e;
4009         surfmesh_t oldsurfmesh;
4010         size_t size;
4011         unsigned char *data;
4012         oldsurfmesh = model->surfmesh;
4013         model->surfmesh.num_triangles = oldsurfmesh.num_triangles;
4014         model->surfmesh.num_vertices = oldsurfmesh.num_triangles * 3;
4015         size = 0;
4016         size += model->surfmesh.num_vertices * sizeof(float[3]);
4017         size += model->surfmesh.num_vertices * sizeof(float[3]);
4018         size += model->surfmesh.num_vertices * sizeof(float[3]);
4019         size += model->surfmesh.num_vertices * sizeof(float[3]);
4020         size += model->surfmesh.num_vertices * sizeof(float[2]);
4021         size += model->surfmesh.num_vertices * sizeof(float[2]);
4022         size += model->surfmesh.num_vertices * sizeof(float[4]);
4023         data = (unsigned char *)Mem_Alloc(model->mempool, size);
4024         model->surfmesh.data_vertex3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4025         model->surfmesh.data_normal3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4026         model->surfmesh.data_svector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4027         model->surfmesh.data_tvector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4028         model->surfmesh.data_texcoordtexture2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
4029         model->surfmesh.data_texcoordlightmap2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
4030         model->surfmesh.data_lightmapcolor4f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[4]);
4031         if (model->surfmesh.num_vertices > 65536)
4032                 model->surfmesh.data_element3s = NULL;
4033
4034         if (model->surfmesh.vertexmesh)
4035                 Mem_Free(model->surfmesh.vertexmesh);
4036         model->surfmesh.vertexmesh = NULL;
4037         if (model->surfmesh.vertex3fbuffer)
4038                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vertex3fbuffer);
4039         model->surfmesh.vertex3fbuffer = NULL;
4040         if (model->surfmesh.vertexmeshbuffer)
4041                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vertexmeshbuffer);
4042         model->surfmesh.vertexmeshbuffer = NULL;
4043         if (model->surfmesh.data_element3i_indexbuffer)
4044                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3i_indexbuffer);
4045         model->surfmesh.data_element3i_indexbuffer = NULL;
4046         if (model->surfmesh.data_element3s_indexbuffer)
4047                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3s_indexbuffer);
4048         model->surfmesh.data_element3s_indexbuffer = NULL;
4049         if (model->surfmesh.vbo_vertexbuffer)
4050                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vbo_vertexbuffer);
4051         model->surfmesh.vbo_vertexbuffer = 0;
4052
4053         // convert all triangles to unique vertex data
4054         outvertexindex = 0;
4055         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4056         {
4057                 surface = model->data_surfaces + surfaceindex;
4058                 surface->num_firstvertex = outvertexindex;
4059                 surface->num_vertices = surface->num_triangles*3;
4060                 e = oldsurfmesh.data_element3i + surface->num_firsttriangle*3;
4061                 for (i = 0;i < surface->num_triangles*3;i++)
4062                 {
4063                         vertexindex = e[i];
4064                         model->surfmesh.data_vertex3f[outvertexindex*3+0] = oldsurfmesh.data_vertex3f[vertexindex*3+0];
4065                         model->surfmesh.data_vertex3f[outvertexindex*3+1] = oldsurfmesh.data_vertex3f[vertexindex*3+1];
4066                         model->surfmesh.data_vertex3f[outvertexindex*3+2] = oldsurfmesh.data_vertex3f[vertexindex*3+2];
4067                         model->surfmesh.data_normal3f[outvertexindex*3+0] = oldsurfmesh.data_normal3f[vertexindex*3+0];
4068                         model->surfmesh.data_normal3f[outvertexindex*3+1] = oldsurfmesh.data_normal3f[vertexindex*3+1];
4069                         model->surfmesh.data_normal3f[outvertexindex*3+2] = oldsurfmesh.data_normal3f[vertexindex*3+2];
4070                         model->surfmesh.data_svector3f[outvertexindex*3+0] = oldsurfmesh.data_svector3f[vertexindex*3+0];
4071                         model->surfmesh.data_svector3f[outvertexindex*3+1] = oldsurfmesh.data_svector3f[vertexindex*3+1];
4072                         model->surfmesh.data_svector3f[outvertexindex*3+2] = oldsurfmesh.data_svector3f[vertexindex*3+2];
4073                         model->surfmesh.data_tvector3f[outvertexindex*3+0] = oldsurfmesh.data_tvector3f[vertexindex*3+0];
4074                         model->surfmesh.data_tvector3f[outvertexindex*3+1] = oldsurfmesh.data_tvector3f[vertexindex*3+1];
4075                         model->surfmesh.data_tvector3f[outvertexindex*3+2] = oldsurfmesh.data_tvector3f[vertexindex*3+2];
4076                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+0];
4077                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+1];
4078                         if (oldsurfmesh.data_texcoordlightmap2f)
4079                         {
4080                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+0];
4081                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+1];
4082                         }
4083                         if (oldsurfmesh.data_lightmapcolor4f)
4084                         {
4085                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+0] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+0];
4086                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+1] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+1];
4087                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+2] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+2];
4088                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+3] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+3];
4089                         }
4090                         else
4091                                 Vector4Set(model->surfmesh.data_lightmapcolor4f + 4*outvertexindex, 1, 1, 1, 1);
4092                         model->surfmesh.data_element3i[surface->num_firsttriangle*3+i] = outvertexindex;
4093                         outvertexindex++;
4094                 }
4095         }
4096         if (model->surfmesh.data_element3s)
4097                 for (i = 0;i < model->surfmesh.num_triangles*3;i++)
4098                         model->surfmesh.data_element3s[i] = model->surfmesh.data_element3i[i];
4099
4100         // find and update all submodels to use this new surfmesh data
4101         for (i = 0;i < model->brush.numsubmodels;i++)
4102                 model->brush.submodels[i]->surfmesh = model->surfmesh;
4103 }
4104
4105 static void Mod_GenerateLightmaps_CreateTriangleInformation(dp_model_t *model)
4106 {
4107         msurface_t *surface;
4108         int surfaceindex;
4109         int i;
4110         int axis;
4111         float normal[3];
4112         const int *e;
4113         lightmaptriangle_t *triangle;
4114         // generate lightmap triangle structs
4115         mod_generatelightmaps_lightmaptriangles = (lightmaptriangle_t *)Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4116         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4117         {
4118                 surface = model->data_surfaces + surfaceindex;
4119                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4120                 for (i = 0;i < surface->num_triangles;i++)
4121                 {
4122                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4123                         triangle->triangleindex = surface->num_firsttriangle+i;
4124                         triangle->surfaceindex = surfaceindex;
4125                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+0], triangle->vertex[0]);
4126                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+1], triangle->vertex[1]);
4127                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+2], triangle->vertex[2]);
4128                         // calculate bounds of triangle
4129                         triangle->mins[0] = min(triangle->vertex[0][0], min(triangle->vertex[1][0], triangle->vertex[2][0]));
4130                         triangle->mins[1] = min(triangle->vertex[0][1], min(triangle->vertex[1][1], triangle->vertex[2][1]));
4131                         triangle->mins[2] = min(triangle->vertex[0][2], min(triangle->vertex[1][2], triangle->vertex[2][2]));
4132                         triangle->maxs[0] = max(triangle->vertex[0][0], max(triangle->vertex[1][0], triangle->vertex[2][0]));
4133                         triangle->maxs[1] = max(triangle->vertex[0][1], max(triangle->vertex[1][1], triangle->vertex[2][1]));
4134                         triangle->maxs[2] = max(triangle->vertex[0][2], max(triangle->vertex[1][2], triangle->vertex[2][2]));
4135                         // pick an axial projection based on the triangle normal
4136                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], normal);
4137                         axis = 0;
4138                         if (fabs(normal[1]) > fabs(normal[axis]))
4139                                 axis = 1;
4140                         if (fabs(normal[2]) > fabs(normal[axis]))
4141                                 axis = 2;
4142                         triangle->axis = axis;
4143                 }
4144         }
4145 }
4146
4147 static void Mod_GenerateLightmaps_DestroyTriangleInformation(dp_model_t *model)
4148 {
4149         if (mod_generatelightmaps_lightmaptriangles)
4150                 Mem_Free(mod_generatelightmaps_lightmaptriangles);
4151         mod_generatelightmaps_lightmaptriangles = NULL;
4152 }
4153
4154 float lmaxis[3][3] = {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}};
4155
4156 static void Mod_GenerateLightmaps_CreateLightmaps(dp_model_t *model)
4157 {
4158         msurface_t *surface;
4159         int surfaceindex;
4160         int lightmapindex;
4161         int lightmapnumber;
4162         int i;
4163         int j;
4164         int k;
4165         int x;
4166         int y;
4167         int axis;
4168         int axis1;
4169         int axis2;
4170         int retry;
4171         int pixeloffset;
4172         float trianglenormal[3];
4173         float samplecenter[3];
4174         float samplenormal[3];
4175         float temp[3];
4176         float lmiscale[2];
4177         float slopex;
4178         float slopey;
4179         float slopebase;
4180         float lmscalepixels;
4181         float lmmins;
4182         float lmmaxs;
4183         float lm_basescalepixels;
4184         int lm_borderpixels;
4185         int lm_texturesize;
4186         //int lm_maxpixels;
4187         const int *e;
4188         lightmaptriangle_t *triangle;
4189         unsigned char *lightmappixels;
4190         unsigned char *deluxemappixels;
4191         mod_alloclightmap_state_t lmstate;
4192         char vabuf[1024];
4193
4194         // generate lightmap projection information for all triangles
4195         if (model->texturepool == NULL)
4196                 model->texturepool = R_AllocTexturePool();
4197         lm_basescalepixels = 1.0f / max(0.0001f, mod_generatelightmaps_unitspersample.value);
4198         lm_borderpixels = mod_generatelightmaps_borderpixels.integer;
4199         lm_texturesize = bound(lm_borderpixels*2+1, 64, (int)vid.maxtexturesize_2d);
4200         //lm_maxpixels = lm_texturesize-(lm_borderpixels*2+1);
4201         Mod_AllocLightmap_Init(&lmstate, lm_texturesize, lm_texturesize);
4202         lightmapnumber = 0;
4203         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4204         {
4205                 surface = model->data_surfaces + surfaceindex;
4206                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4207                 lmscalepixels = lm_basescalepixels;
4208                 for (retry = 0;retry < 30;retry++)
4209                 {
4210                         // after a couple failed attempts, degrade quality to make it fit
4211                         if (retry > 1)
4212                                 lmscalepixels *= 0.5f;
4213                         for (i = 0;i < surface->num_triangles;i++)
4214                         {
4215                                 triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4216                                 triangle->lightmapindex = lightmapnumber;
4217                                 // calculate lightmap bounds in 3D pixel coordinates, limit size,
4218                                 // pick two planar axes for projection
4219                                 // lightmap coordinates here are in pixels
4220                                 // lightmap projections are snapped to pixel grid explicitly, such
4221                                 // that two neighboring triangles sharing an edge and projection
4222                                 // axis will have identical sampl espacing along their shared edge
4223                                 k = 0;
4224                                 for (j = 0;j < 3;j++)
4225                                 {
4226                                         if (j == triangle->axis)
4227                                                 continue;
4228                                         lmmins = floor(triangle->mins[j]*lmscalepixels)-lm_borderpixels;
4229                                         lmmaxs = floor(triangle->maxs[j]*lmscalepixels)+lm_borderpixels;
4230                                         triangle->lmsize[k] = (int)(lmmaxs-lmmins);
4231                                         triangle->lmbase[k] = lmmins/lmscalepixels;
4232                                         triangle->lmscale[k] = lmscalepixels;
4233                                         k++;
4234                                 }
4235                                 if (!Mod_AllocLightmap_Block(&lmstate, triangle->lmsize[0], triangle->lmsize[1], &triangle->lmoffset[0], &triangle->lmoffset[1]))
4236                                         break;
4237                         }
4238                         // if all fit in this texture, we're done with this surface
4239                         if (i == surface->num_triangles)
4240                                 break;
4241                         // if we haven't maxed out the lightmap size yet, we retry the
4242                         // entire surface batch...
4243                         if (lm_texturesize * 2 <= min(mod_generatelightmaps_texturesize.integer, (int)vid.maxtexturesize_2d))
4244                         {
4245                                 lm_texturesize *= 2;
4246                                 surfaceindex = -1;
4247                                 lightmapnumber = 0;
4248                                 Mod_AllocLightmap_Free(&lmstate);
4249                                 Mod_AllocLightmap_Init(&lmstate, lm_texturesize, lm_texturesize);
4250                                 break;
4251                         }
4252                         // if we have maxed out the lightmap size, and this triangle does
4253                         // not fit in the same texture as the rest of the surface, we have
4254                         // to retry the entire surface in a new texture (can only use one)
4255                         // with multiple retries, the lightmap quality degrades until it
4256                         // fits (or gives up)
4257                         if (surfaceindex > 0)
4258                                 lightmapnumber++;
4259                         Mod_AllocLightmap_Reset(&lmstate);
4260                 }
4261         }
4262         lightmapnumber++;
4263         Mod_AllocLightmap_Free(&lmstate);
4264
4265         // now put triangles together into lightmap textures, and do not allow
4266         // triangles of a surface to go into different textures (as that would
4267         // require rewriting the surface list)
4268         model->brushq3.deluxemapping_modelspace = true;
4269         model->brushq3.deluxemapping = true;
4270         model->brushq3.num_mergedlightmaps = lightmapnumber;
4271         model->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4272         model->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4273         lightmappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4274         deluxemappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4275         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4276         {
4277                 surface = model->data_surfaces + surfaceindex;
4278                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4279                 for (i = 0;i < surface->num_triangles;i++)
4280                 {
4281                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4282                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], trianglenormal);
4283                         VectorNormalize(trianglenormal);
4284                         VectorCopy(trianglenormal, samplenormal); // FIXME: this is supposed to be interpolated per pixel from vertices
4285                         axis = triangle->axis;
4286                         axis1 = axis == 0 ? 1 : 0;
4287                         axis2 = axis == 2 ? 1 : 2;
4288                         lmiscale[0] = 1.0f / triangle->lmscale[0];
4289                         lmiscale[1] = 1.0f / triangle->lmscale[1];
4290                         if (trianglenormal[axis] < 0)
4291                                 VectorNegate(trianglenormal, trianglenormal);
4292                         CrossProduct(lmaxis[axis2], trianglenormal, temp);slopex = temp[axis] / temp[axis1];
4293                         CrossProduct(lmaxis[axis1], trianglenormal, temp);slopey = temp[axis] / temp[axis2];
4294                         slopebase = triangle->vertex[0][axis] - triangle->vertex[0][axis1]*slopex - triangle->vertex[0][axis2]*slopey;
4295                         for (j = 0;j < 3;j++)
4296                         {
4297                                 float *t2f = model->surfmesh.data_texcoordlightmap2f + e[i*3+j]*2;
4298                                 t2f[0] = ((triangle->vertex[j][axis1] - triangle->lmbase[0]) * triangle->lmscale[0] + triangle->lmoffset[0]) / lm_texturesize;
4299                                 t2f[1] = ((triangle->vertex[j][axis2] - triangle->lmbase[1]) * triangle->lmscale[1] + triangle->lmoffset[1]) / lm_texturesize;
4300 #if 0
4301                                 samplecenter[axis1] = (t2f[0]*lm_texturesize-triangle->lmoffset[0])*lmiscale[0] + triangle->lmbase[0];
4302                                 samplecenter[axis2] = (t2f[1]*lm_texturesize-triangle->lmoffset[1])*lmiscale[1] + triangle->lmbase[1];
4303                                 samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4304                                 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]);
4305 #endif
4306                         }
4307
4308 #if 0
4309                         switch (axis)
4310                         {
4311                         default:
4312                         case 0:
4313                                 forward[0] = 0;
4314                                 forward[1] = 1.0f / triangle->lmscale[0];
4315                                 forward[2] = 0;
4316                                 left[0] = 0;
4317                                 left[1] = 0;
4318                                 left[2] = 1.0f / triangle->lmscale[1];
4319                                 up[0] = 1.0f;
4320                                 up[1] = 0;
4321                                 up[2] = 0;
4322                                 origin[0] = 0;
4323                                 origin[1] = triangle->lmbase[0];
4324                                 origin[2] = triangle->lmbase[1];
4325                                 break;
4326                         case 1:
4327                                 forward[0] = 1.0f / triangle->lmscale[0];
4328                                 forward[1] = 0;
4329                                 forward[2] = 0;
4330                                 left[0] = 0;
4331                                 left[1] = 0;
4332                                 left[2] = 1.0f / triangle->lmscale[1];
4333                                 up[0] = 0;
4334                                 up[1] = 1.0f;
4335                                 up[2] = 0;
4336                                 origin[0] = triangle->lmbase[0];
4337                                 origin[1] = 0;
4338                                 origin[2] = triangle->lmbase[1];
4339                                 break;
4340                         case 2:
4341                                 forward[0] = 1.0f / triangle->lmscale[0];
4342                                 forward[1] = 0;
4343                                 forward[2] = 0;
4344                                 left[0] = 0;
4345                                 left[1] = 1.0f / triangle->lmscale[1];
4346                                 left[2] = 0;
4347                                 up[0] = 0;
4348                                 up[1] = 0;
4349                                 up[2] = 1.0f;
4350                                 origin[0] = triangle->lmbase[0];
4351                                 origin[1] = triangle->lmbase[1];
4352                                 origin[2] = 0;
4353                                 break;
4354                         }
4355                         Matrix4x4_FromVectors(&backmatrix, forward, left, up, origin);
4356 #endif
4357 #define LM_DIST_EPSILON (1.0f / 32.0f)
4358                         for (y = 0;y < triangle->lmsize[1];y++)
4359                         {
4360                                 pixeloffset = ((triangle->lightmapindex * lm_texturesize + y + triangle->lmoffset[1]) * lm_texturesize + triangle->lmoffset[0]) * 4;
4361                                 for (x = 0;x < triangle->lmsize[0];x++, pixeloffset += 4)
4362                                 {
4363                                         samplecenter[axis1] = (x+0.5f)*lmiscale[0] + triangle->lmbase[0];
4364                                         samplecenter[axis2] = (y+0.5f)*lmiscale[1] + triangle->lmbase[1];
4365                                         samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4366                                         VectorMA(samplecenter, 0.125f, samplenormal, samplecenter);
4367                                         Mod_GenerateLightmaps_LightmapSample(samplecenter, samplenormal, lightmappixels + pixeloffset, deluxemappixels + pixeloffset);
4368                                 }
4369                         }
4370                 }
4371         }
4372
4373         for (lightmapindex = 0;lightmapindex < model->brushq3.num_mergedlightmaps;lightmapindex++)
4374         {
4375                 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);
4376                 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);
4377         }
4378
4379         if (lightmappixels)
4380                 Mem_Free(lightmappixels);
4381         if (deluxemappixels)
4382                 Mem_Free(deluxemappixels);
4383
4384         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4385         {
4386                 surface = model->data_surfaces + surfaceindex;
4387                 if (!surface->num_triangles)
4388                         continue;
4389                 lightmapindex = mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle].lightmapindex;
4390                 surface->lightmaptexture = model->brushq3.data_lightmaps[lightmapindex];
4391                 surface->deluxemaptexture = model->brushq3.data_deluxemaps[lightmapindex];
4392                 surface->lightmapinfo = NULL;
4393         }
4394
4395         model->brush.LightPoint = Mod_GenerateLightmaps_LightPoint;
4396         model->brushq1.lightdata = NULL;
4397         model->brushq1.lightmapupdateflags = NULL;
4398         model->brushq1.firstrender = false;
4399         model->brushq1.num_lightstyles = 0;
4400         model->brushq1.data_lightstyleinfo = NULL;
4401         for (i = 0;i < model->brush.numsubmodels;i++)
4402         {
4403                 model->brush.submodels[i]->brushq1.lightmapupdateflags = NULL;
4404                 model->brush.submodels[i]->brushq1.firstrender = false;
4405                 model->brush.submodels[i]->brushq1.num_lightstyles = 0;
4406                 model->brush.submodels[i]->brushq1.data_lightstyleinfo = NULL;
4407         }
4408 }
4409
4410 static void Mod_GenerateLightmaps_UpdateVertexColors(dp_model_t *model)
4411 {
4412         int i;
4413         for (i = 0;i < model->surfmesh.num_vertices;i++)
4414                 Mod_GenerateLightmaps_VertexSample(model->surfmesh.data_vertex3f + 3*i, model->surfmesh.data_normal3f + 3*i, model->surfmesh.data_lightmapcolor4f + 4*i);
4415 }
4416
4417 static void Mod_GenerateLightmaps_UpdateLightGrid(dp_model_t *model)
4418 {
4419         int x;
4420         int y;
4421         int z;
4422         int index = 0;
4423         float pos[3];
4424         for (z = 0;z < model->brushq3.num_lightgrid_isize[2];z++)
4425         {
4426                 pos[2] = (model->brushq3.num_lightgrid_imins[2] + z + 0.5f) * model->brushq3.num_lightgrid_cellsize[2];
4427                 for (y = 0;y < model->brushq3.num_lightgrid_isize[1];y++)
4428                 {
4429                         pos[1] = (model->brushq3.num_lightgrid_imins[1] + y + 0.5f) * model->brushq3.num_lightgrid_cellsize[1];
4430                         for (x = 0;x < model->brushq3.num_lightgrid_isize[0];x++, index++)
4431                         {
4432                                 pos[0] = (model->brushq3.num_lightgrid_imins[0] + x + 0.5f) * model->brushq3.num_lightgrid_cellsize[0];
4433                                 Mod_GenerateLightmaps_GridSample(pos, model->brushq3.data_lightgrid + index);
4434                         }
4435                 }
4436         }
4437 }
4438
4439 extern cvar_t mod_q3bsp_nolightmaps;
4440 static void Mod_GenerateLightmaps(dp_model_t *model)
4441 {
4442         //lightmaptriangle_t *lightmaptriangles = Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4443         dp_model_t *oldloadmodel = loadmodel;
4444         loadmodel = model;
4445
4446         Mod_GenerateLightmaps_InitSampleOffsets(model);
4447         Mod_GenerateLightmaps_DestroyLightmaps(model);
4448         Mod_GenerateLightmaps_UnweldTriangles(model);
4449         Mod_GenerateLightmaps_CreateTriangleInformation(model);
4450         Mod_GenerateLightmaps_CreateLights(model);
4451         if(!mod_q3bsp_nolightmaps.integer)
4452                 Mod_GenerateLightmaps_CreateLightmaps(model);
4453         Mod_GenerateLightmaps_UpdateVertexColors(model);
4454         Mod_GenerateLightmaps_UpdateLightGrid(model);
4455         Mod_GenerateLightmaps_DestroyLights(model);
4456         Mod_GenerateLightmaps_DestroyTriangleInformation(model);
4457
4458         loadmodel = oldloadmodel;
4459 }
4460
4461 static void Mod_GenerateLightmaps_f(void)
4462 {
4463         if (Cmd_Argc() != 1)
4464         {
4465                 Con_Printf("usage: mod_generatelightmaps\n");
4466                 return;
4467         }
4468         if (!cl.worldmodel)
4469         {
4470                 Con_Printf("no worldmodel loaded\n");
4471                 return;
4472         }
4473         Mod_GenerateLightmaps(cl.worldmodel);
4474 }