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: empty 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.name[0] = 0;
1738                         shader.surfaceparms = 0;
1739                         shader.surfaceflags = 0;
1740                         shader.textureflags = 0;
1741                         shader.numlayers = 0;
1742                         shader.lighting = false;
1743                         shader.vertexalpha = false;
1744                         shader.textureblendalpha = false;
1745                         shader.primarylayer = 0;
1746                         shader.backgroundlayer = 0;
1747                         shader.skyboxname[0] = 0;
1748                         shader.deforms[0].deform = Q3DEFORM_NONE;
1749                         shader.dpnortlight = false;
1750                         shader.dpshadow = false;
1751                         shader.dpnoshadow = false;
1752                         shader.dpmeshcollisions = false;
1753                         shader.dpshaderkill = false;
1754                         shader.dpreflectcube[0] = 0;
1755                         shader.reflectmin = 0;
1756                         shader.reflectmax = 1;
1757                         shader.refractfactor = 1;
1758                         Vector4Set(shader.refractcolor4f, 1, 1, 1, 1);
1759                         shader.reflectfactor = 1;
1760                         Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
1761                         shader.r_water_wateralpha = 1;
1762                         shader.r_water_waterscroll[0] = 0;
1763                         shader.r_water_waterscroll[1] = 0;
1764                         shader.offsetmapping = (mod_q3shader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
1765                         shader.offsetscale = mod_q3shader_default_offsetmapping_scale.value;
1766                         shader.offsetbias = mod_q3shader_default_offsetmapping_bias.value;
1767                         shader.biaspolygonoffset = mod_q3shader_default_polygonoffset.value;
1768                         shader.biaspolygonfactor = mod_q3shader_default_polygonfactor.value;
1769                         shader.transparentsort = TRANSPARENTSORT_DISTANCE;
1770                         shader.specularscalemod = 1;
1771                         shader.specularpowermod = 1;
1772                         shader.rtlightambient = 0;
1773                         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
1774                         // JUST GREP FOR "specularscalemod = 1".
1775
1776                         strlcpy(shader.name, com_token, sizeof(shader.name));
1777                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1778                         {
1779                                 Con_DPrintf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
1780                                 break;
1781                         }
1782                         while (COM_ParseToken_QuakeC(&text, false))
1783                         {
1784                                 if (!strcasecmp(com_token, "}"))
1785                                         break;
1786                                 if (!strcasecmp(com_token, "{"))
1787                                 {
1788                                         static q3shaderinfo_layer_t dummy;
1789                                         if (shader.numlayers < Q3SHADER_MAXLAYERS)
1790                                         {
1791                                                 layer = shader.layers + shader.numlayers++;
1792                                         }
1793                                         else
1794                                         {
1795                                                 // parse and process it anyway, just don't store it (so a map $lightmap or such stuff still is found)
1796                                                 memset(&dummy, 0, sizeof(dummy));
1797                                                 layer = &dummy;
1798                                         }
1799                                         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1800                                         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1801                                         layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1802                                         layer->blendfunc[0] = GL_ONE;
1803                                         layer->blendfunc[1] = GL_ZERO;
1804                                         while (COM_ParseToken_QuakeC(&text, false))
1805                                         {
1806                                                 if (!strcasecmp(com_token, "}"))
1807                                                         break;
1808                                                 if (!strcasecmp(com_token, "\n"))
1809                                                         continue;
1810                                                 numparameters = 0;
1811                                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1812                                                 {
1813                                                         if (j < TEXTURE_MAXFRAMES + 4)
1814                                                         {
1815                                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1816                                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1817                                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1818                                                                 else
1819                                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1820                                                                 numparameters = j + 1;
1821                                                         }
1822                                                         if (!COM_ParseToken_QuakeC(&text, true))
1823                                                                 break;
1824                                                 }
1825                                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1826                                                 //      parameter[j][0] = 0;
1827                                                 if (developer_insane.integer)
1828                                                 {
1829                                                         Con_DPrintf("%s %i: ", shader.name, shader.numlayers - 1);
1830                                                         for (j = 0;j < numparameters;j++)
1831                                                                 Con_DPrintf(" %s", parameter[j]);
1832                                                         Con_DPrint("\n");
1833                                                 }
1834                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
1835                                                 {
1836                                                         if (numparameters == 2)
1837                                                         {
1838                                                                 if (!strcasecmp(parameter[1], "add"))
1839                                                                 {
1840                                                                         layer->blendfunc[0] = GL_ONE;
1841                                                                         layer->blendfunc[1] = GL_ONE;
1842                                                                 }
1843                                                                 else if (!strcasecmp(parameter[1], "addalpha"))
1844                                                                 {
1845                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1846                                                                         layer->blendfunc[1] = GL_ONE;
1847                                                                 }
1848                                                                 else if (!strcasecmp(parameter[1], "filter"))
1849                                                                 {
1850                                                                         layer->blendfunc[0] = GL_DST_COLOR;
1851                                                                         layer->blendfunc[1] = GL_ZERO;
1852                                                                 }
1853                                                                 else if (!strcasecmp(parameter[1], "blend"))
1854                                                                 {
1855                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1856                                                                         layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
1857                                                                 }
1858                                                         }
1859                                                         else if (numparameters == 3)
1860                                                         {
1861                                                                 int k;
1862                                                                 for (k = 0;k < 2;k++)
1863                                                                 {
1864                                                                         if (!strcasecmp(parameter[k+1], "GL_ONE"))
1865                                                                                 layer->blendfunc[k] = GL_ONE;
1866                                                                         else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
1867                                                                                 layer->blendfunc[k] = GL_ZERO;
1868                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
1869                                                                                 layer->blendfunc[k] = GL_SRC_COLOR;
1870                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
1871                                                                                 layer->blendfunc[k] = GL_SRC_ALPHA;
1872                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
1873                                                                                 layer->blendfunc[k] = GL_DST_COLOR;
1874                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
1875                                                                                 layer->blendfunc[k] = GL_DST_ALPHA;
1876                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
1877                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
1878                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
1879                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
1880                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
1881                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
1882                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
1883                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1884                                                                         else
1885                                                                                 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
1886                                                                 }
1887                                                         }
1888                                                 }
1889                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
1890                                                         layer->alphatest = true;
1891                                                 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
1892                                                 {
1893                                                         if (!strcasecmp(parameter[0], "clampmap"))
1894                                                                 layer->clampmap = true;
1895                                                         layer->numframes = 1;
1896                                                         layer->framerate = 1;
1897                                                         layer->texturename = (char**)Mem_ExpandableArray_AllocRecord (
1898                                                                 &q3shader_data->char_ptrs);
1899                                                         layer->texturename[0] = Mem_strdup (q3shaders_mem, parameter[1]);
1900                                                         if (!strcasecmp(parameter[1], "$lightmap"))
1901                                                                 shader.lighting = true;
1902                                                 }
1903                                                 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
1904                                                 {
1905                                                         int i;
1906                                                         layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
1907                                                         layer->framerate = atof(parameter[1]);
1908                                                         layer->texturename = (char **) Mem_Alloc (q3shaders_mem, sizeof (char*) * layer->numframes);
1909                                                         for (i = 0;i < layer->numframes;i++)
1910                                                                 layer->texturename[i] = Mem_strdup (q3shaders_mem, parameter[i + 2]);
1911                                                 }
1912                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen"))
1913                                                 {
1914                                                         int i;
1915                                                         for (i = 0;i < numparameters - 2 && i < Q3RGBGEN_MAXPARMS;i++)
1916                                                                 layer->rgbgen.parms[i] = atof(parameter[i+2]);
1917                                                              if (!strcasecmp(parameter[1], "identity"))         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1918                                                         else if (!strcasecmp(parameter[1], "const"))            layer->rgbgen.rgbgen = Q3RGBGEN_CONST;
1919                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->rgbgen.rgbgen = Q3RGBGEN_ENTITY;
1920                                                         else if (!strcasecmp(parameter[1], "exactvertex"))      layer->rgbgen.rgbgen = Q3RGBGEN_EXACTVERTEX;
1921                                                         else if (!strcasecmp(parameter[1], "identitylighting")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITYLIGHTING;
1922                                                         else if (!strcasecmp(parameter[1], "lightingdiffuse"))  layer->rgbgen.rgbgen = Q3RGBGEN_LIGHTINGDIFFUSE;
1923                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSENTITY;
1924                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSVERTEX;
1925                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->rgbgen.rgbgen = Q3RGBGEN_VERTEX;
1926                                                         else if (!strcasecmp(parameter[1], "wave"))
1927                                                         {
1928                                                                 layer->rgbgen.rgbgen = Q3RGBGEN_WAVE;
1929                                                                 layer->rgbgen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1930                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1931                                                                         layer->rgbgen.waveparms[i] = atof(parameter[i+3]);
1932                                                         }
1933                                                         else Con_DPrintf("%s parsing warning: unknown rgbgen %s\n", search->filenames[fileindex], parameter[1]);
1934                                                 }
1935                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen"))
1936                                                 {
1937                                                         int i;
1938                                                         for (i = 0;i < numparameters - 2 && i < Q3ALPHAGEN_MAXPARMS;i++)
1939                                                                 layer->alphagen.parms[i] = atof(parameter[i+2]);
1940                                                              if (!strcasecmp(parameter[1], "identity"))         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1941                                                         else if (!strcasecmp(parameter[1], "const"))            layer->alphagen.alphagen = Q3ALPHAGEN_CONST;
1942                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->alphagen.alphagen = Q3ALPHAGEN_ENTITY;
1943                                                         else if (!strcasecmp(parameter[1], "lightingspecular")) layer->alphagen.alphagen = Q3ALPHAGEN_LIGHTINGSPECULAR;
1944                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSENTITY;
1945                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSVERTEX;
1946                                                         else if (!strcasecmp(parameter[1], "portal"))           layer->alphagen.alphagen = Q3ALPHAGEN_PORTAL;
1947                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->alphagen.alphagen = Q3ALPHAGEN_VERTEX;
1948                                                         else if (!strcasecmp(parameter[1], "wave"))
1949                                                         {
1950                                                                 layer->alphagen.alphagen = Q3ALPHAGEN_WAVE;
1951                                                                 layer->alphagen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1952                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1953                                                                         layer->alphagen.waveparms[i] = atof(parameter[i+3]);
1954                                                         }
1955                                                         else Con_DPrintf("%s parsing warning: unknown alphagen %s\n", search->filenames[fileindex], parameter[1]);
1956                                                 }
1957                                                 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "texgen") || !strcasecmp(parameter[0], "tcgen")))
1958                                                 {
1959                                                         int i;
1960                                                         // observed values: tcgen environment
1961                                                         // no other values have been observed in real shaders
1962                                                         for (i = 0;i < numparameters - 2 && i < Q3TCGEN_MAXPARMS;i++)
1963                                                                 layer->tcgen.parms[i] = atof(parameter[i+2]);
1964                                                              if (!strcasecmp(parameter[1], "base"))        layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1965                                                         else if (!strcasecmp(parameter[1], "texture"))     layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1966                                                         else if (!strcasecmp(parameter[1], "environment")) layer->tcgen.tcgen = Q3TCGEN_ENVIRONMENT;
1967                                                         else if (!strcasecmp(parameter[1], "lightmap"))    layer->tcgen.tcgen = Q3TCGEN_LIGHTMAP;
1968                                                         else if (!strcasecmp(parameter[1], "vector"))      layer->tcgen.tcgen = Q3TCGEN_VECTOR;
1969                                                         else Con_DPrintf("%s parsing warning: unknown tcgen mode %s\n", search->filenames[fileindex], parameter[1]);
1970                                                 }
1971                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "tcmod"))
1972                                                 {
1973                                                         int i, tcmodindex;
1974                                                         // observed values:
1975                                                         // tcmod rotate #
1976                                                         // tcmod scale # #
1977                                                         // tcmod scroll # #
1978                                                         // tcmod stretch sin # # # #
1979                                                         // tcmod stretch triangle # # # #
1980                                                         // tcmod transform # # # # # #
1981                                                         // tcmod turb # # # #
1982                                                         // tcmod turb sin # # # #  (this is bogus)
1983                                                         // no other values have been observed in real shaders
1984                                                         for (tcmodindex = 0;tcmodindex < Q3MAXTCMODS;tcmodindex++)
1985                                                                 if (!layer->tcmods[tcmodindex].tcmod)
1986                                                                         break;
1987                                                         if (tcmodindex < Q3MAXTCMODS)
1988                                                         {
1989                                                                 for (i = 0;i < numparameters - 2 && i < Q3TCMOD_MAXPARMS;i++)
1990                                                                         layer->tcmods[tcmodindex].parms[i] = atof(parameter[i+2]);
1991                                                                          if (!strcasecmp(parameter[1], "entitytranslate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ENTITYTRANSLATE;
1992                                                                 else if (!strcasecmp(parameter[1], "rotate"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ROTATE;
1993                                                                 else if (!strcasecmp(parameter[1], "scale"))           layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCALE;
1994                                                                 else if (!strcasecmp(parameter[1], "scroll"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCROLL;
1995                                                                 else if (!strcasecmp(parameter[1], "page"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_PAGE;
1996                                                                 else if (!strcasecmp(parameter[1], "stretch"))
1997                                                                 {
1998                                                                         layer->tcmods[tcmodindex].tcmod = Q3TCMOD_STRETCH;
1999                                                                         layer->tcmods[tcmodindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
2000                                                                         for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
2001                                                                                 layer->tcmods[tcmodindex].waveparms[i] = atof(parameter[i+3]);
2002                                                                 }
2003                                                                 else if (!strcasecmp(parameter[1], "transform"))       layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TRANSFORM;
2004                                                                 else if (!strcasecmp(parameter[1], "turb"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TURBULENT;
2005                                                                 else Con_DPrintf("%s parsing warning: unknown tcmod mode %s\n", search->filenames[fileindex], parameter[1]);
2006                                                         }
2007                                                         else
2008                                                                 Con_DPrintf("%s parsing warning: too many tcmods on one layer\n", search->filenames[fileindex]);
2009                                                 }
2010                                                 // break out a level if it was a closing brace (not using the character here to not confuse vim)
2011                                                 if (!strcasecmp(com_token, "}"))
2012                                                         break;
2013                                         }
2014                                         if (layer->rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE || layer->rgbgen.rgbgen == Q3RGBGEN_VERTEX)
2015                                                 shader.lighting = true;
2016                                         if (layer->alphagen.alphagen == Q3ALPHAGEN_VERTEX)
2017                                         {
2018                                                 if (layer == shader.layers + 0)
2019                                                 {
2020                                                         // vertex controlled transparency
2021                                                         shader.vertexalpha = true;
2022                                                 }
2023                                                 else
2024                                                 {
2025                                                         // multilayer terrain shader or similar
2026                                                         shader.textureblendalpha = true;
2027                                                         if (mod_q3shader_force_terrain_alphaflag.integer)
2028                                                                 shader.layers[0].texflags |= TEXF_ALPHA;
2029                                                 }
2030                                         }
2031
2032                                         if(mod_q3shader_force_addalpha.integer)
2033                                         {
2034                                                 // for a long while, DP treated GL_ONE GL_ONE as GL_SRC_ALPHA GL_ONE
2035                                                 // this cvar brings back this behaviour
2036                                                 if(layer->blendfunc[0] == GL_ONE && layer->blendfunc[1] == GL_ONE)
2037                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
2038                                         }
2039
2040                                         layer->texflags = 0;
2041                                         if (layer->alphatest)
2042                                                 layer->texflags |= TEXF_ALPHA;
2043                                         switch(layer->blendfunc[0])
2044                                         {
2045                                                 case GL_SRC_ALPHA:
2046                                                 case GL_ONE_MINUS_SRC_ALPHA:
2047                                                         layer->texflags |= TEXF_ALPHA;
2048                                                         break;
2049                                         }
2050                                         switch(layer->blendfunc[1])
2051                                         {
2052                                                 case GL_SRC_ALPHA:
2053                                                 case GL_ONE_MINUS_SRC_ALPHA:
2054                                                         layer->texflags |= TEXF_ALPHA;
2055                                                         break;
2056                                         }
2057                                         if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
2058                                                 layer->texflags |= TEXF_MIPMAP;
2059                                         if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
2060                                                 layer->texflags |= TEXF_PICMIP | TEXF_COMPRESS;
2061                                         if (layer->clampmap)
2062                                                 layer->texflags |= TEXF_CLAMP;
2063                                         continue;
2064                                 }
2065                                 numparameters = 0;
2066                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
2067                                 {
2068                                         if (j < TEXTURE_MAXFRAMES + 4)
2069                                         {
2070                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
2071                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
2072                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
2073                                                 else
2074                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
2075                                                 numparameters = j + 1;
2076                                         }
2077                                         if (!COM_ParseToken_QuakeC(&text, true))
2078                                                 break;
2079                                 }
2080                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
2081                                 //      parameter[j][0] = 0;
2082                                 if (fileindex == 0 && !strcasecmp(com_token, "}"))
2083                                         break;
2084                                 if (developer_insane.integer)
2085                                 {
2086                                         Con_DPrintf("%s: ", shader.name);
2087                                         for (j = 0;j < numparameters;j++)
2088                                                 Con_DPrintf(" %s", parameter[j]);
2089                                         Con_DPrint("\n");
2090                                 }
2091                                 if (numparameters < 1)
2092                                         continue;
2093                                 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
2094                                 {
2095                                         if (!strcasecmp(parameter[1], "alphashadow"))
2096                                                 shader.surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
2097                                         else if (!strcasecmp(parameter[1], "areaportal"))
2098                                                 shader.surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
2099                                         else if (!strcasecmp(parameter[1], "botclip"))
2100                                                 shader.surfaceparms |= Q3SURFACEPARM_BOTCLIP;
2101                                         else if (!strcasecmp(parameter[1], "clusterportal"))
2102                                                 shader.surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
2103                                         else if (!strcasecmp(parameter[1], "detail"))
2104                                                 shader.surfaceparms |= Q3SURFACEPARM_DETAIL;
2105                                         else if (!strcasecmp(parameter[1], "donotenter"))
2106                                                 shader.surfaceparms |= Q3SURFACEPARM_DONOTENTER;
2107                                         else if (!strcasecmp(parameter[1], "dust"))
2108                                                 shader.surfaceparms |= Q3SURFACEPARM_DUST;
2109                                         else if (!strcasecmp(parameter[1], "hint"))
2110                                                 shader.surfaceparms |= Q3SURFACEPARM_HINT;
2111                                         else if (!strcasecmp(parameter[1], "fog"))
2112                                                 shader.surfaceparms |= Q3SURFACEPARM_FOG;
2113                                         else if (!strcasecmp(parameter[1], "lava"))
2114                                                 shader.surfaceparms |= Q3SURFACEPARM_LAVA;
2115                                         else if (!strcasecmp(parameter[1], "lightfilter"))
2116                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
2117                                         else if (!strcasecmp(parameter[1], "lightgrid"))
2118                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
2119                                         else if (!strcasecmp(parameter[1], "metalsteps"))
2120                                                 shader.surfaceparms |= Q3SURFACEPARM_METALSTEPS;
2121                                         else if (!strcasecmp(parameter[1], "nodamage"))
2122                                                 shader.surfaceparms |= Q3SURFACEPARM_NODAMAGE;
2123                                         else if (!strcasecmp(parameter[1], "nodlight"))
2124                                                 shader.surfaceparms |= Q3SURFACEPARM_NODLIGHT;
2125                                         else if (!strcasecmp(parameter[1], "nodraw"))
2126                                                 shader.surfaceparms |= Q3SURFACEPARM_NODRAW;
2127                                         else if (!strcasecmp(parameter[1], "nodrop"))
2128                                                 shader.surfaceparms |= Q3SURFACEPARM_NODROP;
2129                                         else if (!strcasecmp(parameter[1], "noimpact"))
2130                                                 shader.surfaceparms |= Q3SURFACEPARM_NOIMPACT;
2131                                         else if (!strcasecmp(parameter[1], "nolightmap"))
2132                                                 shader.surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
2133                                         else if (!strcasecmp(parameter[1], "nomarks"))
2134                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMARKS;
2135                                         else if (!strcasecmp(parameter[1], "nomipmaps"))
2136                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2137                                         else if (!strcasecmp(parameter[1], "nonsolid"))
2138                                                 shader.surfaceparms |= Q3SURFACEPARM_NONSOLID;
2139                                         else if (!strcasecmp(parameter[1], "origin"))
2140                                                 shader.surfaceparms |= Q3SURFACEPARM_ORIGIN;
2141                                         else if (!strcasecmp(parameter[1], "playerclip"))
2142                                                 shader.surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
2143                                         else if (!strcasecmp(parameter[1], "sky"))
2144                                                 shader.surfaceparms |= Q3SURFACEPARM_SKY;
2145                                         else if (!strcasecmp(parameter[1], "slick"))
2146                                                 shader.surfaceparms |= Q3SURFACEPARM_SLICK;
2147                                         else if (!strcasecmp(parameter[1], "slime"))
2148                                                 shader.surfaceparms |= Q3SURFACEPARM_SLIME;
2149                                         else if (!strcasecmp(parameter[1], "structural"))
2150                                                 shader.surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
2151                                         else if (!strcasecmp(parameter[1], "trans"))
2152                                                 shader.surfaceparms |= Q3SURFACEPARM_TRANS;
2153                                         else if (!strcasecmp(parameter[1], "water"))
2154                                                 shader.surfaceparms |= Q3SURFACEPARM_WATER;
2155                                         else if (!strcasecmp(parameter[1], "pointlight"))
2156                                                 shader.surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
2157                                         else if (!strcasecmp(parameter[1], "antiportal"))
2158                                                 shader.surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
2159                                         else if (!strcasecmp(parameter[1], "skip"))
2160                                                 ; // shader.surfaceparms |= Q3SURFACEPARM_SKIP; FIXME we don't have enough #defines for this any more, and the engine doesn't need this one anyway
2161                                         else
2162                                         {
2163                                                 // try custom surfaceparms
2164                                                 for (j = 0; j < numcustsurfaceflags; j++)
2165                                                 {
2166                                                         if (!strcasecmp(custsurfaceparmnames[j], parameter[1]))
2167                                                         {
2168                                                                 shader.surfaceflags |= custsurfaceflags[j];
2169                                                                 break;
2170                                                         }
2171                                                 }
2172                                                 // failed all
2173                                                 if (j == numcustsurfaceflags)
2174                                                         Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
2175                                         }
2176                                 }
2177                                 else if (!strcasecmp(parameter[0], "dpshadow"))
2178                                         shader.dpshadow = true;
2179                                 else if (!strcasecmp(parameter[0], "dpnoshadow"))
2180                                         shader.dpnoshadow = true;
2181                                 else if (!strcasecmp(parameter[0], "dpnortlight"))
2182                                         shader.dpnortlight = true;
2183                                 else if (!strcasecmp(parameter[0], "dpreflectcube"))
2184                                         strlcpy(shader.dpreflectcube, parameter[1], sizeof(shader.dpreflectcube));
2185                                 else if (!strcasecmp(parameter[0], "dpmeshcollisions"))
2186                                         shader.dpmeshcollisions = true;
2187                                 // this sets dpshaderkill to true if dpshaderkillifcvarzero was used, and to false if dpnoshaderkillifcvarzero was used
2188                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvarzero")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvarzero")) && numparameters >= 2)
2189                                 {
2190                                         if (Cvar_VariableValue(parameter[1]) == 0.0f)
2191                                                 shader.dpshaderkill = dpshaderkill;
2192                                 }
2193                                 // this sets dpshaderkill to true if dpshaderkillifcvar was used, and to false if dpnoshaderkillifcvar was used
2194                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvar")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvar")) && numparameters >= 2)
2195                                 {
2196                                         const char *op = NULL;
2197                                         if (numparameters >= 3)
2198                                                 op = parameter[2];
2199                                         if(!op)
2200                                         {
2201                                                 if (Cvar_VariableValue(parameter[1]) != 0.0f)
2202                                                         shader.dpshaderkill = dpshaderkill;
2203                                         }
2204                                         else if (numparameters >= 4 && !strcmp(op, "=="))
2205                                         {
2206                                                 if (Cvar_VariableValue(parameter[1]) == atof(parameter[3]))
2207                                                         shader.dpshaderkill = dpshaderkill;
2208                                         }
2209                                         else if (numparameters >= 4 && !strcmp(op, "!="))
2210                                         {
2211                                                 if (Cvar_VariableValue(parameter[1]) != atof(parameter[3]))
2212                                                         shader.dpshaderkill = dpshaderkill;
2213                                         }
2214                                         else if (numparameters >= 4 && !strcmp(op, ">"))
2215                                         {
2216                                                 if (Cvar_VariableValue(parameter[1]) > atof(parameter[3]))
2217                                                         shader.dpshaderkill = dpshaderkill;
2218                                         }
2219                                         else if (numparameters >= 4 && !strcmp(op, "<"))
2220                                         {
2221                                                 if (Cvar_VariableValue(parameter[1]) < atof(parameter[3]))
2222                                                         shader.dpshaderkill = dpshaderkill;
2223                                         }
2224                                         else if (numparameters >= 4 && !strcmp(op, ">="))
2225                                         {
2226                                                 if (Cvar_VariableValue(parameter[1]) >= atof(parameter[3]))
2227                                                         shader.dpshaderkill = dpshaderkill;
2228                                         }
2229                                         else if (numparameters >= 4 && !strcmp(op, "<="))
2230                                         {
2231                                                 if (Cvar_VariableValue(parameter[1]) <= atof(parameter[3]))
2232                                                         shader.dpshaderkill = dpshaderkill;
2233                                         }
2234                                         else
2235                                         {
2236                                                 Con_DPrintf("%s parsing warning: unknown dpshaderkillifcvar op \"%s\", or not enough arguments\n", search->filenames[fileindex], op);
2237                                         }
2238                                 }
2239                                 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
2240                                 {
2241                                         // some q3 skies don't have the sky parm set
2242                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2243                                         strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2244                                 }
2245                                 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
2246                                 {
2247                                         // some q3 skies don't have the sky parm set
2248                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2249                                         if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
2250                                                 strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2251                                 }
2252                                 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
2253                                 {
2254                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
2255                                                 shader.textureflags |= Q3TEXTUREFLAG_TWOSIDED;
2256                                 }
2257                                 else if (!strcasecmp(parameter[0], "nomipmaps"))
2258                                         shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2259                                 else if (!strcasecmp(parameter[0], "nopicmip"))
2260                                         shader.textureflags |= Q3TEXTUREFLAG_NOPICMIP;
2261                                 else if (!strcasecmp(parameter[0], "polygonoffset"))
2262                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2263                                 else if (!strcasecmp(parameter[0], "dppolygonoffset"))
2264                                 {
2265                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2266                                         if(numparameters >= 2)
2267                                         {
2268                                                 shader.biaspolygonfactor = atof(parameter[1]);
2269                                                 if(numparameters >= 3)
2270                                                         shader.biaspolygonoffset = atof(parameter[2]);
2271                                                 else
2272                                                         shader.biaspolygonoffset = 0;
2273                                         }
2274                                 }
2275                                 else if (!strcasecmp(parameter[0], "dptransparentsort") && numparameters >= 2)
2276                                 {
2277                                         shader.textureflags |= Q3TEXTUREFLAG_TRANSPARENTSORT;
2278                                         if (!strcasecmp(parameter[1], "sky"))
2279                                                 shader.transparentsort = TRANSPARENTSORT_SKY;
2280                                         else if (!strcasecmp(parameter[1], "distance"))
2281                                                 shader.transparentsort = TRANSPARENTSORT_DISTANCE;
2282                                         else if (!strcasecmp(parameter[1], "hud"))
2283                                                 shader.transparentsort = TRANSPARENTSORT_HUD;
2284                                         else
2285                                                 Con_DPrintf("%s parsing warning: unknown dptransparentsort category \"%s\", or not enough arguments\n", search->filenames[fileindex], parameter[1]);
2286                                 }
2287                                 else if (!strcasecmp(parameter[0], "dprefract") && numparameters >= 5)
2288                                 {
2289                                         shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
2290                                         shader.refractfactor = atof(parameter[1]);
2291                                         Vector4Set(shader.refractcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), 1);
2292                                 }
2293                                 else if (!strcasecmp(parameter[0], "dpreflect") && numparameters >= 6)
2294                                 {
2295                                         shader.textureflags |= Q3TEXTUREFLAG_REFLECTION;
2296                                         shader.reflectfactor = atof(parameter[1]);
2297                                         Vector4Set(shader.reflectcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), atof(parameter[5]));
2298                                 }
2299                                 else if (!strcasecmp(parameter[0], "dpcamera"))
2300                                 {
2301                                         shader.textureflags |= Q3TEXTUREFLAG_CAMERA;
2302                                 }
2303                                 else if (!strcasecmp(parameter[0], "dpwater") && numparameters >= 12)
2304                                 {
2305                                         shader.textureflags |= Q3TEXTUREFLAG_WATERSHADER;
2306                                         shader.reflectmin = atof(parameter[1]);
2307                                         shader.reflectmax = atof(parameter[2]);
2308                                         shader.refractfactor = atof(parameter[3]);
2309                                         shader.reflectfactor = atof(parameter[4]);
2310                                         Vector4Set(shader.refractcolor4f, atof(parameter[5]), atof(parameter[6]), atof(parameter[7]), 1);
2311                                         Vector4Set(shader.reflectcolor4f, atof(parameter[8]), atof(parameter[9]), atof(parameter[10]), 1);
2312                                         shader.r_water_wateralpha = atof(parameter[11]);
2313                                 }
2314                                 else if (!strcasecmp(parameter[0], "dpwaterscroll") && numparameters >= 3)
2315                                 {
2316                                         shader.r_water_waterscroll[0] = 1/atof(parameter[1]);
2317                                         shader.r_water_waterscroll[1] = 1/atof(parameter[2]);
2318                                 }
2319                                 else if (!strcasecmp(parameter[0], "dpglossintensitymod") && numparameters >= 2)
2320                                 {
2321                                         shader.specularscalemod = atof(parameter[1]);
2322                                 }
2323                                 else if (!strcasecmp(parameter[0], "dpglossexponentmod") && numparameters >= 2)
2324                                 {
2325                                         shader.specularpowermod = atof(parameter[1]);
2326                                 }
2327                                 else if (!strcasecmp(parameter[0], "dprtlightambient") && numparameters >= 2)
2328                                 {
2329                                         shader.rtlightambient = atof(parameter[1]);
2330                                 }
2331                                 else if (!strcasecmp(parameter[0], "dpoffsetmapping") && numparameters >= 2)
2332                                 {
2333                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "off"))
2334                                                 shader.offsetmapping = OFFSETMAPPING_OFF;
2335                                         else if (!strcasecmp(parameter[1], "default") || !strcasecmp(parameter[1], "normal"))
2336                                                 shader.offsetmapping = OFFSETMAPPING_DEFAULT;
2337                                         else if (!strcasecmp(parameter[1], "linear"))
2338                                                 shader.offsetmapping = OFFSETMAPPING_LINEAR;
2339                                         else if (!strcasecmp(parameter[1], "relief"))
2340                                                 shader.offsetmapping = OFFSETMAPPING_RELIEF;
2341                                         if (numparameters >= 3)
2342                                                 shader.offsetscale = atof(parameter[2]);
2343                                         if (numparameters >= 5)
2344                                         {
2345                                                 if(!strcasecmp(parameter[3], "bias"))
2346                                                         shader.offsetbias = atof(parameter[4]);
2347                                                 else if(!strcasecmp(parameter[3], "match"))
2348                                                         shader.offsetbias = 1.0f - atof(parameter[4]);
2349                                                 else if(!strcasecmp(parameter[3], "match8"))
2350                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 255.0f;
2351                                                 else if(!strcasecmp(parameter[3], "match16"))
2352                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 65535.0f;
2353                                         }
2354                                 }
2355                                 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
2356                                 {
2357                                         int i, deformindex;
2358                                         for (deformindex = 0;deformindex < Q3MAXDEFORMS;deformindex++)
2359                                                 if (!shader.deforms[deformindex].deform)
2360                                                         break;
2361                                         if (deformindex < Q3MAXDEFORMS)
2362                                         {
2363                                                 for (i = 0;i < numparameters - 2 && i < Q3DEFORM_MAXPARMS;i++)
2364                                                         shader.deforms[deformindex].parms[i] = atof(parameter[i+2]);
2365                                                      if (!strcasecmp(parameter[1], "projectionshadow")) shader.deforms[deformindex].deform = Q3DEFORM_PROJECTIONSHADOW;
2366                                                 else if (!strcasecmp(parameter[1], "autosprite"      )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE;
2367                                                 else if (!strcasecmp(parameter[1], "autosprite2"     )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE2;
2368                                                 else if (!strcasecmp(parameter[1], "text0"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT0;
2369                                                 else if (!strcasecmp(parameter[1], "text1"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT1;
2370                                                 else if (!strcasecmp(parameter[1], "text2"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT2;
2371                                                 else if (!strcasecmp(parameter[1], "text3"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT3;
2372                                                 else if (!strcasecmp(parameter[1], "text4"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT4;
2373                                                 else if (!strcasecmp(parameter[1], "text5"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT5;
2374                                                 else if (!strcasecmp(parameter[1], "text6"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT6;
2375                                                 else if (!strcasecmp(parameter[1], "text7"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT7;
2376                                                 else if (!strcasecmp(parameter[1], "bulge"           )) shader.deforms[deformindex].deform = Q3DEFORM_BULGE;
2377                                                 else if (!strcasecmp(parameter[1], "normal"          )) shader.deforms[deformindex].deform = Q3DEFORM_NORMAL;
2378                                                 else if (!strcasecmp(parameter[1], "wave"            ))
2379                                                 {
2380                                                         shader.deforms[deformindex].deform = Q3DEFORM_WAVE;
2381                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[3]);
2382                                                         for (i = 0;i < numparameters - 4 && i < Q3WAVEPARMS;i++)
2383                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+4]);
2384                                                 }
2385                                                 else if (!strcasecmp(parameter[1], "move"            ))
2386                                                 {
2387                                                         shader.deforms[deformindex].deform = Q3DEFORM_MOVE;
2388                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[5]);
2389                                                         for (i = 0;i < numparameters - 6 && i < Q3WAVEPARMS;i++)
2390                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+6]);
2391                                                 }
2392                                         }
2393                                 }
2394                         }
2395                         // hide this shader if a cvar said it should be killed
2396                         if (shader.dpshaderkill)
2397                                 shader.numlayers = 0;
2398                         // pick the primary layer to render with
2399                         if (shader.numlayers)
2400                         {
2401                                 shader.backgroundlayer = -1;
2402                                 shader.primarylayer = 0;
2403                                 // if lightmap comes first this is definitely an ordinary texture
2404                                 // if the first two layers have the correct blendfuncs and use vertex alpha, it is a blended terrain shader
2405                                 if ((shader.layers[shader.primarylayer].texturename != NULL)
2406                                   && !strcasecmp(shader.layers[shader.primarylayer].texturename[0], "$lightmap"))
2407                                 {
2408                                         shader.backgroundlayer = -1;
2409                                         shader.primarylayer = 1;
2410                                 }
2411                                 else if (shader.numlayers >= 2
2412                                 &&   shader.layers[1].alphagen.alphagen == Q3ALPHAGEN_VERTEX
2413                                 &&  (shader.layers[0].blendfunc[0] == GL_ONE       && shader.layers[0].blendfunc[1] == GL_ZERO                && !shader.layers[0].alphatest)
2414                                 && ((shader.layers[1].blendfunc[0] == GL_SRC_ALPHA && shader.layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2415                                 ||  (shader.layers[1].blendfunc[0] == GL_ONE       && shader.layers[1].blendfunc[1] == GL_ZERO                &&  shader.layers[1].alphatest)))
2416                                 {
2417                                         // terrain blending or other effects
2418                                         shader.backgroundlayer = 0;
2419                                         shader.primarylayer = 1;
2420                                 }
2421                         }
2422                         // fix up multiple reflection types
2423                         if(shader.textureflags & Q3TEXTUREFLAG_WATERSHADER)
2424                                 shader.textureflags &= ~(Q3TEXTUREFLAG_REFRACTION | Q3TEXTUREFLAG_REFLECTION | Q3TEXTUREFLAG_CAMERA);
2425
2426                         Q3Shader_AddToHash (&shader);
2427                 }
2428                 Mem_Free(f);
2429         }
2430         FS_FreeSearch(search);
2431         // free custinfoparm values
2432         for (j = 0; j < numcustsurfaceflags; j++)
2433                 Mem_Free(custsurfaceparmnames[j]);
2434 }
2435
2436 q3shaderinfo_t *Mod_LookupQ3Shader(const char *name)
2437 {
2438         unsigned short hash;
2439         q3shader_hash_entry_t* entry;
2440         if (!q3shaders_mem)
2441                 Mod_LoadQ3Shaders();
2442         hash = CRC_Block_CaseInsensitive ((const unsigned char *)name, strlen (name));
2443         entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
2444         while (entry != NULL)
2445         {
2446                 if (strcasecmp (entry->shader.name, name) == 0)
2447                         return &entry->shader;
2448                 entry = entry->chain;
2449         }
2450         return NULL;
2451 }
2452
2453 qboolean Mod_LoadTextureFromQ3Shader(texture_t *texture, const char *name, qboolean warnmissing, qboolean fallback, int defaulttexflags)
2454 {
2455         int j;
2456         int texflagsmask, texflagsor;
2457         qboolean success = true;
2458         q3shaderinfo_t *shader;
2459         if (!name)
2460                 name = "";
2461         strlcpy(texture->name, name, sizeof(texture->name));
2462         shader = name[0] ? Mod_LookupQ3Shader(name) : NULL;
2463
2464         texflagsmask = ~0;
2465         if(!(defaulttexflags & TEXF_PICMIP))
2466                 texflagsmask &= ~TEXF_PICMIP;
2467         if(!(defaulttexflags & TEXF_COMPRESS))
2468                 texflagsmask &= ~TEXF_COMPRESS;
2469         texflagsor = 0;
2470         if(defaulttexflags & TEXF_ISWORLD)
2471                 texflagsor |= TEXF_ISWORLD;
2472         if(defaulttexflags & TEXF_ISSPRITE)
2473                 texflagsor |= TEXF_ISSPRITE;
2474         // unless later loaded from the shader
2475         texture->offsetmapping = (mod_noshader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
2476         texture->offsetscale = 1;
2477         texture->offsetbias = 0;
2478         texture->specularscalemod = 1;
2479         texture->specularpowermod = 1;
2480         texture->rtlightambient = 0;
2481         texture->transparentsort = TRANSPARENTSORT_DISTANCE;
2482         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
2483         // JUST GREP FOR "specularscalemod = 1".
2484
2485         if (shader)
2486         {
2487                 if (developer_loading.integer)
2488                         Con_Printf("%s: loaded shader for %s\n", loadmodel->name, name);
2489
2490                 // allow disabling of picmip or compression by defaulttexflags
2491                 texture->textureflags = (shader->textureflags & texflagsmask) | texflagsor;
2492
2493                 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
2494                 {
2495                         texture->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2496                         if (shader->skyboxname[0])
2497                         {
2498                                 // quake3 seems to append a _ to the skybox name, so this must do so as well
2499                                 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
2500                         }
2501                 }
2502                 else if ((texture->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
2503                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2504                 else
2505                         texture->basematerialflags = MATERIALFLAG_WALL;
2506
2507                 if (shader->layers[0].alphatest)
2508                         texture->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
2509                 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
2510                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
2511                 if (shader->textureflags & Q3TEXTUREFLAG_POLYGONOFFSET)
2512                 {
2513                         texture->biaspolygonoffset += shader->biaspolygonoffset;
2514                         texture->biaspolygonfactor += shader->biaspolygonfactor;
2515                 }
2516                 if (shader->textureflags & Q3TEXTUREFLAG_REFRACTION)
2517                         texture->basematerialflags |= MATERIALFLAG_REFRACTION;
2518                 if (shader->textureflags & Q3TEXTUREFLAG_REFLECTION)
2519                         texture->basematerialflags |= MATERIALFLAG_REFLECTION;
2520                 if (shader->textureflags & Q3TEXTUREFLAG_WATERSHADER)
2521                         texture->basematerialflags |= MATERIALFLAG_WATERSHADER;
2522                 if (shader->textureflags & Q3TEXTUREFLAG_CAMERA)
2523                         texture->basematerialflags |= MATERIALFLAG_CAMERA;
2524                 texture->customblendfunc[0] = GL_ONE;
2525                 texture->customblendfunc[1] = GL_ZERO;
2526                 texture->transparentsort = shader->transparentsort;
2527                 if (shader->numlayers > 0)
2528                 {
2529                         texture->customblendfunc[0] = shader->layers[0].blendfunc[0];
2530                         texture->customblendfunc[1] = shader->layers[0].blendfunc[1];
2531 /*
2532 Q3 shader blendfuncs actually used in the game (* = supported by DP)
2533 * additive               GL_ONE GL_ONE
2534 additive weird         GL_ONE GL_SRC_ALPHA
2535 additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
2536 * alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
2537 alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
2538 brighten               GL_DST_COLOR GL_ONE
2539 brighten               GL_ONE GL_SRC_COLOR
2540 brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
2541 brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
2542 * modulate               GL_DST_COLOR GL_ZERO
2543 * modulate               GL_ZERO GL_SRC_COLOR
2544 modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
2545 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
2546 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
2547 * modulate x2            GL_DST_COLOR GL_SRC_COLOR
2548 * no blend               GL_ONE GL_ZERO
2549 nothing                GL_ZERO GL_ONE
2550 */
2551                         // if not opaque, figure out what blendfunc to use
2552                         if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
2553                         {
2554                                 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
2555                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2556                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
2557                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2558                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2559                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2560                                 else
2561                                         texture->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2562                         }
2563                 }
2564                 if (!shader->lighting)
2565                         texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
2566                 if (shader->primarylayer >= 0)
2567                 {
2568                         q3shaderinfo_layer_t* primarylayer = shader->layers + shader->primarylayer;
2569                         // copy over many primarylayer parameters
2570                         texture->rgbgen = primarylayer->rgbgen;
2571                         texture->alphagen = primarylayer->alphagen;
2572                         texture->tcgen = primarylayer->tcgen;
2573                         memcpy(texture->tcmods, primarylayer->tcmods, sizeof(texture->tcmods));
2574                         // load the textures
2575                         texture->numskinframes = primarylayer->numframes;
2576                         texture->skinframerate = primarylayer->framerate;
2577                         for (j = 0;j < primarylayer->numframes;j++)
2578                         {
2579                                 if(cls.state == ca_dedicated)
2580                                 {
2581                                         texture->skinframes[j] = NULL;
2582                                 }
2583                                 else if (!(texture->skinframes[j] = R_SkinFrame_LoadExternal(primarylayer->texturename[j], (primarylayer->texflags & texflagsmask) | texflagsor, false)))
2584                                 {
2585                                         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);
2586                                         texture->skinframes[j] = R_SkinFrame_LoadMissing();
2587                                 }
2588                         }
2589                 }
2590                 if (shader->backgroundlayer >= 0)
2591                 {
2592                         q3shaderinfo_layer_t* backgroundlayer = shader->layers + shader->backgroundlayer;
2593                         // copy over one secondarylayer parameter
2594                         memcpy(texture->backgroundtcmods, backgroundlayer->tcmods, sizeof(texture->backgroundtcmods));
2595                         // load the textures
2596                         texture->backgroundnumskinframes = backgroundlayer->numframes;
2597                         texture->backgroundskinframerate = backgroundlayer->framerate;
2598                         for (j = 0;j < backgroundlayer->numframes;j++)
2599                         {
2600                                 if(cls.state == ca_dedicated)
2601                                 {
2602                                         texture->skinframes[j] = NULL;
2603                                 }
2604                                 else if (!(texture->backgroundskinframes[j] = R_SkinFrame_LoadExternal(backgroundlayer->texturename[j], (backgroundlayer->texflags & texflagsmask) | texflagsor, false)))
2605                                 {
2606                                         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);
2607                                         texture->backgroundskinframes[j] = R_SkinFrame_LoadMissing();
2608                                 }
2609                         }
2610                 }
2611                 if (shader->dpshadow)
2612                         texture->basematerialflags &= ~MATERIALFLAG_NOSHADOW;
2613                 if (shader->dpnoshadow)
2614                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW;
2615                 if (shader->dpnortlight)
2616                         texture->basematerialflags |= MATERIALFLAG_NORTLIGHT;
2617                 if (shader->vertexalpha)
2618                         texture->basematerialflags |= MATERIALFLAG_ALPHAGEN_VERTEX;
2619                 memcpy(texture->deforms, shader->deforms, sizeof(texture->deforms));
2620                 texture->reflectmin = shader->reflectmin;
2621                 texture->reflectmax = shader->reflectmax;
2622                 texture->refractfactor = shader->refractfactor;
2623                 Vector4Copy(shader->refractcolor4f, texture->refractcolor4f);
2624                 texture->reflectfactor = shader->reflectfactor;
2625                 Vector4Copy(shader->reflectcolor4f, texture->reflectcolor4f);
2626                 texture->r_water_wateralpha = shader->r_water_wateralpha;
2627                 Vector2Copy(shader->r_water_waterscroll, texture->r_water_waterscroll);
2628                 texture->offsetmapping = shader->offsetmapping;
2629                 texture->offsetscale = shader->offsetscale;
2630                 texture->offsetbias = shader->offsetbias;
2631                 texture->specularscalemod = shader->specularscalemod;
2632                 texture->specularpowermod = shader->specularpowermod;
2633                 texture->rtlightambient = shader->rtlightambient;
2634                 if (shader->dpreflectcube[0])
2635                         texture->reflectcubetexture = R_GetCubemap(shader->dpreflectcube);
2636
2637                 // set up default supercontents (on q3bsp this is overridden by the q3bsp loader)
2638                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2639                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents  = SUPERCONTENTS_LAVA         ;
2640                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents  = SUPERCONTENTS_SLIME        ;
2641                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents  = SUPERCONTENTS_WATER        ;
2642                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents  = 0                          ;
2643                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents  = SUPERCONTENTS_PLAYERCLIP   ;
2644                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents  = SUPERCONTENTS_MONSTERCLIP  ;
2645                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents  = SUPERCONTENTS_SKY          ;
2646
2647         //      if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->supercontents |= SUPERCONTENTS_ALPHASHADOW  ;
2648         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->supercontents |= SUPERCONTENTS_AREAPORTAL   ;
2649         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->supercontents |= SUPERCONTENTS_CLUSTERPORTAL;
2650         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->supercontents |= SUPERCONTENTS_DETAIL       ;
2651                 if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->supercontents |= SUPERCONTENTS_DONOTENTER   ;
2652         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->supercontents |= SUPERCONTENTS_FOG          ;
2653                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents |= SUPERCONTENTS_LAVA         ;
2654         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->supercontents |= SUPERCONTENTS_LIGHTFILTER  ;
2655         //      if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->supercontents |= SUPERCONTENTS_METALSTEPS   ;
2656         //      if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->supercontents |= SUPERCONTENTS_NODAMAGE     ;
2657         //      if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->supercontents |= SUPERCONTENTS_NODLIGHT     ;
2658         //      if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->supercontents |= SUPERCONTENTS_NODRAW       ;
2659                 if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->supercontents |= SUPERCONTENTS_NODROP       ;
2660         //      if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->supercontents |= SUPERCONTENTS_NOIMPACT     ;
2661         //      if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->supercontents |= SUPERCONTENTS_NOLIGHTMAP   ;
2662         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->supercontents |= SUPERCONTENTS_NOMARKS      ;
2663         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->supercontents |= SUPERCONTENTS_NOMIPMAPS    ;
2664                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents &=~SUPERCONTENTS_SOLID        ;
2665         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->supercontents |= SUPERCONTENTS_ORIGIN       ;
2666                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents |= SUPERCONTENTS_PLAYERCLIP   ;
2667                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents |= SUPERCONTENTS_SKY          ;
2668         //      if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->supercontents |= SUPERCONTENTS_SLICK        ;
2669                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents |= SUPERCONTENTS_SLIME        ;
2670         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->supercontents |= SUPERCONTENTS_STRUCTURAL   ;
2671         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->supercontents |= SUPERCONTENTS_TRANS        ;
2672                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents |= SUPERCONTENTS_WATER        ;
2673         //      if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->supercontents |= SUPERCONTENTS_POINTLIGHT   ;
2674         //      if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->supercontents |= SUPERCONTENTS_HINT         ;
2675         //      if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->supercontents |= SUPERCONTENTS_DUST         ;
2676                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents |= SUPERCONTENTS_BOTCLIP      | SUPERCONTENTS_MONSTERCLIP;
2677         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->supercontents |= SUPERCONTENTS_LIGHTGRID    ;
2678         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->supercontents |= SUPERCONTENTS_ANTIPORTAL   ;
2679
2680                 texture->surfaceflags = shader->surfaceflags;
2681                 if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->surfaceflags |= Q3SURFACEFLAG_ALPHASHADOW  ;
2682         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_AREAPORTAL   ;
2683         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->surfaceflags |= Q3SURFACEFLAG_CLUSTERPORTAL;
2684         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->surfaceflags |= Q3SURFACEFLAG_DETAIL       ;
2685         //      if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->surfaceflags |= Q3SURFACEFLAG_DONOTENTER   ;
2686         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->surfaceflags |= Q3SURFACEFLAG_FOG          ;
2687         //      if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->surfaceflags |= Q3SURFACEFLAG_LAVA         ;
2688                 if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTFILTER  ;
2689                 if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->surfaceflags |= Q3SURFACEFLAG_METALSTEPS   ;
2690                 if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->surfaceflags |= Q3SURFACEFLAG_NODAMAGE     ;
2691                 if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->surfaceflags |= Q3SURFACEFLAG_NODLIGHT     ;
2692                 if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->surfaceflags |= Q3SURFACEFLAG_NODRAW       ;
2693         //      if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->surfaceflags |= Q3SURFACEFLAG_NODROP       ;
2694                 if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->surfaceflags |= Q3SURFACEFLAG_NOIMPACT     ;
2695                 if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->surfaceflags |= Q3SURFACEFLAG_NOLIGHTMAP   ;
2696                 if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->surfaceflags |= Q3SURFACEFLAG_NOMARKS      ;
2697         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->surfaceflags |= Q3SURFACEFLAG_NOMIPMAPS    ;
2698                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->surfaceflags |= Q3SURFACEFLAG_NONSOLID     ;
2699         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->surfaceflags |= Q3SURFACEFLAG_ORIGIN       ;
2700         //      if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->surfaceflags |= Q3SURFACEFLAG_PLAYERCLIP   ;
2701                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->surfaceflags |= Q3SURFACEFLAG_SKY          ;
2702                 if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->surfaceflags |= Q3SURFACEFLAG_SLICK        ;
2703         //      if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->surfaceflags |= Q3SURFACEFLAG_SLIME        ;
2704         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->surfaceflags |= Q3SURFACEFLAG_STRUCTURAL   ;
2705         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->surfaceflags |= Q3SURFACEFLAG_TRANS        ;
2706         //      if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->surfaceflags |= Q3SURFACEFLAG_WATER        ;
2707                 if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->surfaceflags |= Q3SURFACEFLAG_POINTLIGHT   ;
2708                 if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->surfaceflags |= Q3SURFACEFLAG_HINT         ;
2709                 if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->surfaceflags |= Q3SURFACEFLAG_DUST         ;
2710         //      if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->surfaceflags |= Q3SURFACEFLAG_BOTCLIP      ;
2711         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTGRID    ;
2712         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_ANTIPORTAL   ;
2713
2714                 if (shader->dpmeshcollisions)
2715                         texture->basematerialflags |= MATERIALFLAG_MESHCOLLISIONS;
2716                 if (shader->dpshaderkill && developer_extra.integer)
2717                         Con_DPrintf("^1%s:^7 killing shader ^3\"%s\" because of cvar\n", loadmodel->name, name);
2718         }
2719         else if (!strcmp(texture->name, "noshader") || !texture->name[0])
2720         {
2721                 if (developer_extra.integer)
2722                         Con_DPrintf("^1%s:^7 using fallback noshader material for ^3\"%s\"\n", loadmodel->name, name);
2723                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2724         }
2725         else if (!strcmp(texture->name, "common/nodraw") || !strcmp(texture->name, "textures/common/nodraw"))
2726         {
2727                 if (developer_extra.integer)
2728                         Con_DPrintf("^1%s:^7 using fallback nodraw material for ^3\"%s\"\n", loadmodel->name, name);
2729                 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2730                 texture->supercontents = SUPERCONTENTS_SOLID;
2731         }
2732         else
2733         {
2734                 if (developer_extra.integer)
2735                         Con_DPrintf("^1%s:^7 No shader found for texture ^3\"%s\"\n", loadmodel->name, texture->name);
2736                 if (texture->surfaceflags & Q3SURFACEFLAG_NODRAW)
2737                 {
2738                         texture->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2739                         texture->supercontents = SUPERCONTENTS_SOLID;
2740                 }
2741                 else if (texture->surfaceflags & Q3SURFACEFLAG_SKY)
2742                 {
2743                         texture->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2744                         texture->supercontents = SUPERCONTENTS_SKY;
2745                 }
2746                 else
2747                 {
2748                         texture->basematerialflags |= MATERIALFLAG_WALL;
2749                         texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2750                 }
2751                 texture->numskinframes = 1;
2752                 if(cls.state == ca_dedicated)
2753                 {
2754                         texture->skinframes[0] = NULL;
2755                         success = false;
2756                 }
2757                 else
2758                 {
2759                         if (fallback)
2760                         {
2761                                 if ((texture->skinframes[0] = R_SkinFrame_LoadExternal(texture->name, defaulttexflags, false)))
2762                                 {
2763                                         if(texture->skinframes[0]->hasalpha)
2764                                                 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2765                                 }
2766                                 else
2767                                         success = false;
2768                         }
2769                         else
2770                                 success = false;
2771                         if (!success && warnmissing)
2772                                 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"\n", loadmodel->name, texture->name);
2773                 }
2774         }
2775         // init the animation variables
2776         texture->currentframe = texture;
2777         if (texture->numskinframes < 1)
2778                 texture->numskinframes = 1;
2779         if (!texture->skinframes[0])
2780                 texture->skinframes[0] = R_SkinFrame_LoadMissing();
2781         texture->currentskinframe = texture->skinframes[0];
2782         texture->backgroundcurrentskinframe = texture->backgroundskinframes[0];
2783         return success;
2784 }
2785
2786 skinfile_t *Mod_LoadSkinFiles(void)
2787 {
2788         int i, words, line, wordsoverflow;
2789         char *text;
2790         const char *data;
2791         skinfile_t *skinfile = NULL, *first = NULL;
2792         skinfileitem_t *skinfileitem;
2793         char word[10][MAX_QPATH];
2794         char vabuf[1024];
2795
2796 /*
2797 sample file:
2798 U_bodyBox,models/players/Legoman/BikerA2.tga
2799 U_RArm,models/players/Legoman/BikerA1.tga
2800 U_LArm,models/players/Legoman/BikerA1.tga
2801 U_armor,common/nodraw
2802 U_sword,common/nodraw
2803 U_shield,common/nodraw
2804 U_homb,common/nodraw
2805 U_backpack,common/nodraw
2806 U_colcha,common/nodraw
2807 tag_head,
2808 tag_weapon,
2809 tag_torso,
2810 */
2811         memset(word, 0, sizeof(word));
2812         for (i = 0;i < 256 && (data = text = (char *)FS_LoadFile(va(vabuf, sizeof(vabuf), "%s_%i.skin", loadmodel->name, i), tempmempool, true, NULL));i++)
2813         {
2814                 // If it's the first file we parse
2815                 if (skinfile == NULL)
2816                 {
2817                         skinfile = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2818                         first = skinfile;
2819                 }
2820                 else
2821                 {
2822                         skinfile->next = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2823                         skinfile = skinfile->next;
2824                 }
2825                 skinfile->next = NULL;
2826
2827                 for(line = 0;;line++)
2828                 {
2829                         // parse line
2830                         if (!COM_ParseToken_QuakeC(&data, true))
2831                                 break;
2832                         if (!strcmp(com_token, "\n"))
2833                                 continue;
2834                         words = 0;
2835                         wordsoverflow = false;
2836                         do
2837                         {
2838                                 if (words < 10)
2839                                         strlcpy(word[words++], com_token, sizeof (word[0]));
2840                                 else
2841                                         wordsoverflow = true;
2842                         }
2843                         while (COM_ParseToken_QuakeC(&data, true) && strcmp(com_token, "\n"));
2844                         if (wordsoverflow)
2845                         {
2846                                 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);
2847                                 continue;
2848                         }
2849                         // words is always >= 1
2850                         if (!strcmp(word[0], "replace"))
2851                         {
2852                                 if (words == 3)
2853                                 {
2854                                         if (developer_loading.integer)
2855                                                 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
2856                                         skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2857                                         skinfileitem->next = skinfile->items;
2858                                         skinfile->items = skinfileitem;
2859                                         strlcpy (skinfileitem->name, word[1], sizeof (skinfileitem->name));
2860                                         strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2861                                 }
2862                                 else
2863                                         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]);
2864                         }
2865                         else if (words >= 2 && !strncmp(word[0], "tag_", 4))
2866                         {
2867                                 // tag name, like "tag_weapon,"
2868                                 // not used for anything (not even in Quake3)
2869                         }
2870                         else if (words >= 2 && !strcmp(word[1], ","))
2871                         {
2872                                 // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
2873                                 if (developer_loading.integer)
2874                                         Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
2875                                 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2876                                 skinfileitem->next = skinfile->items;
2877                                 skinfile->items = skinfileitem;
2878                                 strlcpy (skinfileitem->name, word[0], sizeof (skinfileitem->name));
2879                                 strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2880                         }
2881                         else
2882                                 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);
2883                 }
2884                 Mem_Free(text);
2885         }
2886         if (i)
2887                 loadmodel->numskins = i;
2888         return first;
2889 }
2890
2891 void Mod_FreeSkinFiles(skinfile_t *skinfile)
2892 {
2893         skinfile_t *next;
2894         skinfileitem_t *skinfileitem, *nextitem;
2895         for (;skinfile;skinfile = next)
2896         {
2897                 next = skinfile->next;
2898                 for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
2899                 {
2900                         nextitem = skinfileitem->next;
2901                         Mem_Free(skinfileitem);
2902                 }
2903                 Mem_Free(skinfile);
2904         }
2905 }
2906
2907 int Mod_CountSkinFiles(skinfile_t *skinfile)
2908 {
2909         int i;
2910         for (i = 0;skinfile;skinfile = skinfile->next, i++);
2911         return i;
2912 }
2913
2914 void Mod_SnapVertices(int numcomponents, int numvertices, float *vertices, float snap)
2915 {
2916         int i;
2917         double isnap = 1.0 / snap;
2918         for (i = 0;i < numvertices*numcomponents;i++)
2919                 vertices[i] = floor(vertices[i]*isnap)*snap;
2920 }
2921
2922 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
2923 {
2924         int i, outtriangles;
2925         float edgedir1[3], edgedir2[3], temp[3];
2926         // a degenerate triangle is one with no width (thickness, surface area)
2927         // these are characterized by having all 3 points colinear (along a line)
2928         // or having two points identical
2929         // the simplest check is to calculate the triangle's area
2930         for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
2931         {
2932                 // calculate first edge
2933                 VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir1);
2934                 VectorSubtract(vertex3f + inelement3i[2] * 3, vertex3f + inelement3i[0] * 3, edgedir2);
2935                 CrossProduct(edgedir1, edgedir2, temp);
2936                 if (VectorLength2(temp) < 0.001f)
2937                         continue; // degenerate triangle (no area)
2938                 // valid triangle (has area)
2939                 VectorCopy(inelement3i, outelement3i);
2940                 outelement3i += 3;
2941                 outtriangles++;
2942         }
2943         return outtriangles;
2944 }
2945
2946 void Mod_VertexRangeFromElements(int numelements, const int *elements, int *firstvertexpointer, int *lastvertexpointer)
2947 {
2948         int i, e;
2949         int firstvertex, lastvertex;
2950         if (numelements > 0 && elements)
2951         {
2952                 firstvertex = lastvertex = elements[0];
2953                 for (i = 1;i < numelements;i++)
2954                 {
2955                         e = elements[i];
2956                         firstvertex = min(firstvertex, e);
2957                         lastvertex = max(lastvertex, e);
2958                 }
2959         }
2960         else
2961                 firstvertex = lastvertex = 0;
2962         if (firstvertexpointer)
2963                 *firstvertexpointer = firstvertex;
2964         if (lastvertexpointer)
2965                 *lastvertexpointer = lastvertex;
2966 }
2967
2968 void Mod_MakeSortedSurfaces(dp_model_t *mod)
2969 {
2970         // make an optimal set of texture-sorted batches to draw...
2971         int j, t;
2972         int *firstsurfacefortexture;
2973         int *numsurfacesfortexture;
2974         if (!mod->sortedmodelsurfaces)
2975                 mod->sortedmodelsurfaces = (int *) Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->sortedmodelsurfaces));
2976         firstsurfacefortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*firstsurfacefortexture));
2977         numsurfacesfortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*numsurfacesfortexture));
2978         memset(numsurfacesfortexture, 0, mod->num_textures * sizeof(*numsurfacesfortexture));
2979         for (j = 0;j < mod->nummodelsurfaces;j++)
2980         {
2981                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2982                 int t = (int)(surface->texture - mod->data_textures);
2983                 numsurfacesfortexture[t]++;
2984         }
2985         j = 0;
2986         for (t = 0;t < mod->num_textures;t++)
2987         {
2988                 firstsurfacefortexture[t] = j;
2989                 j += numsurfacesfortexture[t];
2990         }
2991         for (j = 0;j < mod->nummodelsurfaces;j++)
2992         {
2993                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2994                 int t = (int)(surface->texture - mod->data_textures);
2995                 mod->sortedmodelsurfaces[firstsurfacefortexture[t]++] = j + mod->firstmodelsurface;
2996         }
2997         Mem_Free(firstsurfacefortexture);
2998         Mem_Free(numsurfacesfortexture);
2999 }
3000
3001 void Mod_BuildVBOs(void)
3002 {
3003         if (!loadmodel->surfmesh.num_vertices)
3004                 return;
3005
3006         if (gl_paranoid.integer && loadmodel->surfmesh.data_element3s && loadmodel->surfmesh.data_element3i)
3007         {
3008                 int i;
3009                 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
3010                 {
3011                         if (loadmodel->surfmesh.data_element3s[i] != loadmodel->surfmesh.data_element3i[i])
3012                         {
3013                                 Con_Printf("Mod_BuildVBOs: element %u is incorrect (%u should be %u)\n", i, loadmodel->surfmesh.data_element3s[i], loadmodel->surfmesh.data_element3i[i]);
3014                                 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
3015                         }
3016                 }
3017         }
3018
3019         // build r_vertexmesh_t array
3020         // (compressed interleaved array for D3D)
3021         if (!loadmodel->surfmesh.vertexmesh && vid.useinterleavedarrays)
3022         {
3023                 int vertexindex;
3024                 int numvertices = loadmodel->surfmesh.num_vertices;
3025                 r_vertexmesh_t *vertexmesh;
3026                 loadmodel->surfmesh.vertexmesh = vertexmesh = (r_vertexmesh_t*)Mem_Alloc(loadmodel->mempool, numvertices * sizeof(*loadmodel->surfmesh.vertexmesh));
3027                 for (vertexindex = 0;vertexindex < numvertices;vertexindex++, vertexmesh++)
3028                 {
3029                         VectorCopy(loadmodel->surfmesh.data_vertex3f + 3*vertexindex, vertexmesh->vertex3f);
3030                         VectorScale(loadmodel->surfmesh.data_svector3f + 3*vertexindex, 1.0f, vertexmesh->svector3f);
3031                         VectorScale(loadmodel->surfmesh.data_tvector3f + 3*vertexindex, 1.0f, vertexmesh->tvector3f);
3032                         VectorScale(loadmodel->surfmesh.data_normal3f + 3*vertexindex, 1.0f, vertexmesh->normal3f);
3033                         if (loadmodel->surfmesh.data_lightmapcolor4f)
3034                                 Vector4Copy(loadmodel->surfmesh.data_lightmapcolor4f + 4*vertexindex, vertexmesh->color4f);
3035                         Vector2Copy(loadmodel->surfmesh.data_texcoordtexture2f + 2*vertexindex, vertexmesh->texcoordtexture2f);
3036                         if (loadmodel->surfmesh.data_texcoordlightmap2f)
3037                                 Vector2Scale(loadmodel->surfmesh.data_texcoordlightmap2f + 2*vertexindex, 1.0f, vertexmesh->texcoordlightmap2f);
3038                         if (loadmodel->surfmesh.data_skeletalindex4ub)
3039                                 Vector4Copy(loadmodel->surfmesh.data_skeletalindex4ub + 4*vertexindex, vertexmesh->skeletalindex4ub);
3040                         if (loadmodel->surfmesh.data_skeletalweight4ub)
3041                                 Vector4Copy(loadmodel->surfmesh.data_skeletalweight4ub + 4*vertexindex, vertexmesh->skeletalweight4ub);
3042                 }
3043         }
3044
3045         // upload r_vertexmesh_t array as a buffer
3046         if (loadmodel->surfmesh.vertexmesh && !loadmodel->surfmesh.vertexmeshbuffer)
3047                 loadmodel->surfmesh.vertexmeshbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.vertexmesh, loadmodel->surfmesh.num_vertices * sizeof(*loadmodel->surfmesh.vertexmesh), loadmodel->name, false, false, false);
3048
3049         // upload vertex3f array as a buffer
3050         if (loadmodel->surfmesh.data_vertex3f && !loadmodel->surfmesh.vertex3fbuffer)
3051                 loadmodel->surfmesh.vertex3fbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.num_vertices * sizeof(float[3]), loadmodel->name, false, false, false);
3052
3053         // upload short indices as a buffer
3054         if (loadmodel->surfmesh.data_element3s && !loadmodel->surfmesh.data_element3s_indexbuffer)
3055                 loadmodel->surfmesh.data_element3s_indexbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_element3s, loadmodel->surfmesh.num_triangles * sizeof(short[3]), loadmodel->name, true, false, true);
3056
3057         // upload int indices as a buffer
3058         if (loadmodel->surfmesh.data_element3i && !loadmodel->surfmesh.data_element3i_indexbuffer && !loadmodel->surfmesh.data_element3s)
3059                 loadmodel->surfmesh.data_element3i_indexbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles * sizeof(int[3]), loadmodel->name, true, false, false);
3060
3061         // only build a vbo if one has not already been created (this is important for brush models which load specially)
3062         // vertex buffer is several arrays and we put them in the same buffer
3063         //
3064         // is this wise?  the texcoordtexture2f array is used with dynamic
3065         // vertex/svector/tvector/normal when rendering animated models, on the
3066         // other hand animated models don't use a lot of vertices anyway...
3067         if (!loadmodel->surfmesh.vbo_vertexbuffer && !vid.useinterleavedarrays)
3068         {
3069                 size_t size;
3070                 unsigned char *mem;
3071                 size = 0;
3072                 loadmodel->surfmesh.vbooffset_vertex3f           = size;if (loadmodel->surfmesh.data_vertex3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3073                 loadmodel->surfmesh.vbooffset_svector3f          = size;if (loadmodel->surfmesh.data_svector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3074                 loadmodel->surfmesh.vbooffset_tvector3f          = size;if (loadmodel->surfmesh.data_tvector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3075                 loadmodel->surfmesh.vbooffset_normal3f           = size;if (loadmodel->surfmesh.data_normal3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3076                 loadmodel->surfmesh.vbooffset_texcoordtexture2f  = size;if (loadmodel->surfmesh.data_texcoordtexture2f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
3077                 loadmodel->surfmesh.vbooffset_texcoordlightmap2f = size;if (loadmodel->surfmesh.data_texcoordlightmap2f) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
3078                 loadmodel->surfmesh.vbooffset_lightmapcolor4f    = size;if (loadmodel->surfmesh.data_lightmapcolor4f   ) size += loadmodel->surfmesh.num_vertices * sizeof(float[4]);
3079                 loadmodel->surfmesh.vbooffset_skeletalindex4ub   = size;if (loadmodel->surfmesh.data_skeletalindex4ub  ) size += loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]);
3080                 loadmodel->surfmesh.vbooffset_skeletalweight4ub  = size;if (loadmodel->surfmesh.data_skeletalweight4ub ) size += loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]);
3081                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
3082                 if (loadmodel->surfmesh.data_vertex3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_vertex3f          , loadmodel->surfmesh.data_vertex3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3083                 if (loadmodel->surfmesh.data_svector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_svector3f         , loadmodel->surfmesh.data_svector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3084                 if (loadmodel->surfmesh.data_tvector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_tvector3f         , loadmodel->surfmesh.data_tvector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3085                 if (loadmodel->surfmesh.data_normal3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_normal3f          , loadmodel->surfmesh.data_normal3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3086                 if (loadmodel->surfmesh.data_texcoordtexture2f ) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordtexture2f , loadmodel->surfmesh.data_texcoordtexture2f , loadmodel->surfmesh.num_vertices * sizeof(float[2]));
3087                 if (loadmodel->surfmesh.data_texcoordlightmap2f) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordlightmap2f, loadmodel->surfmesh.data_texcoordlightmap2f, loadmodel->surfmesh.num_vertices * sizeof(float[2]));
3088                 if (loadmodel->surfmesh.data_lightmapcolor4f   ) memcpy(mem + loadmodel->surfmesh.vbooffset_lightmapcolor4f   , loadmodel->surfmesh.data_lightmapcolor4f   , loadmodel->surfmesh.num_vertices * sizeof(float[4]));
3089                 if (loadmodel->surfmesh.data_skeletalindex4ub  ) memcpy(mem + loadmodel->surfmesh.vbooffset_skeletalindex4ub  , loadmodel->surfmesh.data_skeletalindex4ub  , loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]));
3090                 if (loadmodel->surfmesh.data_skeletalweight4ub ) memcpy(mem + loadmodel->surfmesh.vbooffset_skeletalweight4ub , loadmodel->surfmesh.data_skeletalweight4ub , loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]));
3091                 loadmodel->surfmesh.vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, loadmodel->name, false, false, false);
3092                 Mem_Free(mem);
3093         }
3094 }
3095
3096 extern cvar_t mod_obj_orientation;
3097 static void Mod_Decompile_OBJ(dp_model_t *model, const char *filename, const char *mtlfilename, const char *originalfilename)
3098 {
3099         int submodelindex, vertexindex, surfaceindex, triangleindex, textureindex, countvertices = 0, countsurfaces = 0, countfaces = 0, counttextures = 0;
3100         int a, b, c;
3101         const char *texname;
3102         const int *e;
3103         const float *v, *vn, *vt;
3104         size_t l;
3105         size_t outbufferpos = 0;
3106         size_t outbuffermax = 0x100000;
3107         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3108         const msurface_t *surface;
3109         const int maxtextures = 256;
3110         char *texturenames = (char *) Z_Malloc(maxtextures * MAX_QPATH);
3111         dp_model_t *submodel;
3112
3113         // construct the mtllib file
3114         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "# mtllib for %s exported by darkplaces engine\n", originalfilename);
3115         if (l > 0)
3116                 outbufferpos += l;
3117         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3118         {
3119                 countsurfaces++;
3120                 countvertices += surface->num_vertices;
3121                 countfaces += surface->num_triangles;
3122                 texname = (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default";
3123                 for (textureindex = 0;textureindex < counttextures;textureindex++)
3124                         if (!strcmp(texturenames + textureindex * MAX_QPATH, texname))
3125                                 break;
3126                 if (textureindex < counttextures)
3127                         continue; // already wrote this material entry
3128                 if (textureindex >= maxtextures)
3129                         continue; // just a precaution
3130                 textureindex = counttextures++;
3131                 strlcpy(texturenames + textureindex * MAX_QPATH, texname, MAX_QPATH);
3132                 if (outbufferpos >= outbuffermax >> 1)
3133                 {
3134                         outbuffermax *= 2;
3135                         oldbuffer = outbuffer;
3136                         outbuffer = (char *) Z_Malloc(outbuffermax);
3137                         memcpy(outbuffer, oldbuffer, outbufferpos);
3138                         Z_Free(oldbuffer);
3139                 }
3140                 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");
3141                 if (l > 0)
3142                         outbufferpos += l;
3143         }
3144
3145         // write the mtllib file
3146         FS_WriteFile(mtlfilename, outbuffer, outbufferpos);
3147
3148         // construct the obj file
3149         outbufferpos = 0;
3150         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);
3151         if (l > 0)
3152                 outbufferpos += l;
3153
3154         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)
3155         {
3156                 if (outbufferpos >= outbuffermax >> 1)
3157                 {
3158                         outbuffermax *= 2;
3159                         oldbuffer = outbuffer;
3160                         outbuffer = (char *) Z_Malloc(outbuffermax);
3161                         memcpy(outbuffer, oldbuffer, outbufferpos);
3162                         Z_Free(oldbuffer);
3163                 }
3164                 if(mod_obj_orientation.integer)
3165                         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]);
3166                 else
3167                         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]);
3168                 if (l > 0)
3169                         outbufferpos += l;
3170         }
3171
3172         for (submodelindex = 0;submodelindex < max(1, model->brush.numsubmodels);submodelindex++)
3173         {
3174                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "o %i\n", submodelindex);
3175                 if (l > 0)
3176                         outbufferpos += l;
3177                 submodel = model->brush.numsubmodels ? model->brush.submodels[submodelindex] : model;
3178                 for (surfaceindex = 0;surfaceindex < submodel->nummodelsurfaces;surfaceindex++)
3179                 {
3180                         surface = model->data_surfaces + submodel->sortedmodelsurfaces[surfaceindex];
3181                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "usemtl %s\n", (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default");
3182                         if (l > 0)
3183                                 outbufferpos += l;
3184                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3185                         {
3186                                 if (outbufferpos >= outbuffermax >> 1)
3187                                 {
3188                                         outbuffermax *= 2;
3189                                         oldbuffer = outbuffer;
3190                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3191                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3192                                         Z_Free(oldbuffer);
3193                                 }
3194                                 a = e[0]+1;
3195                                 b = e[1]+1;
3196                                 c = e[2]+1;
3197                                 if(mod_obj_orientation.integer)
3198                                         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);
3199                                 else
3200                                         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);
3201                                 if (l > 0)
3202                                         outbufferpos += l;
3203                         }
3204                 }
3205         }
3206
3207         // write the obj file
3208         FS_WriteFile(filename, outbuffer, outbufferpos);
3209
3210         // clean up
3211         Z_Free(outbuffer);
3212         Z_Free(texturenames);
3213
3214         // print some stats
3215         Con_Printf("Wrote %s (%i bytes, %i vertices, %i faces, %i surfaces with %i distinct textures)\n", filename, (int)outbufferpos, countvertices, countfaces, countsurfaces, counttextures);
3216 }
3217
3218 static void Mod_Decompile_SMD(dp_model_t *model, const char *filename, int firstpose, int numposes, qboolean writetriangles)
3219 {
3220         int countnodes = 0, counttriangles = 0, countframes = 0;
3221         int surfaceindex;
3222         int triangleindex;
3223         int transformindex;
3224         int poseindex;
3225         int cornerindex;
3226         const int *e;
3227         size_t l;
3228         size_t outbufferpos = 0;
3229         size_t outbuffermax = 0x100000;
3230         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3231         const msurface_t *surface;
3232         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "version 1\nnodes\n");
3233         if (l > 0)
3234                 outbufferpos += l;
3235         for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3236         {
3237                 if (outbufferpos >= outbuffermax >> 1)
3238                 {
3239                         outbuffermax *= 2;
3240                         oldbuffer = outbuffer;
3241                         outbuffer = (char *) Z_Malloc(outbuffermax);
3242                         memcpy(outbuffer, oldbuffer, outbufferpos);
3243                         Z_Free(oldbuffer);
3244                 }
3245                 countnodes++;
3246                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i \"%s\" %3i\n", transformindex, model->data_bones[transformindex].name, model->data_bones[transformindex].parent);
3247                 if (l > 0)
3248                         outbufferpos += l;
3249         }
3250         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\nskeleton\n");
3251         if (l > 0)
3252                 outbufferpos += l;
3253         for (poseindex = 0;poseindex < numposes;poseindex++)
3254         {
3255                 countframes++;
3256                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "time %i\n", poseindex);
3257                 if (l > 0)
3258                         outbufferpos += l;
3259                 for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3260                 {
3261                         float angles[3];
3262                         float mtest[4][3];
3263                         matrix4x4_t posematrix;
3264                         if (outbufferpos >= outbuffermax >> 1)
3265                         {
3266                                 outbuffermax *= 2;
3267                                 oldbuffer = outbuffer;
3268                                 outbuffer = (char *) Z_Malloc(outbuffermax);
3269                                 memcpy(outbuffer, oldbuffer, outbufferpos);
3270                                 Z_Free(oldbuffer);
3271                         }
3272
3273                         // strangely the smd angles are for a transposed matrix, so we
3274                         // have to generate a transposed matrix, then convert that...
3275                         Matrix4x4_FromBonePose7s(&posematrix, model->num_posescale, model->data_poses7s + 7*(model->num_bones * poseindex + transformindex));
3276                         Matrix4x4_ToArray12FloatGL(&posematrix, mtest[0]);
3277                         AnglesFromVectors(angles, mtest[0], mtest[2], false);
3278                         if (angles[0] >= 180) angles[0] -= 360;
3279                         if (angles[1] >= 180) angles[1] -= 360;
3280                         if (angles[2] >= 180) angles[2] -= 360;
3281
3282 #if 0
3283 {
3284                         float a = DEG2RAD(angles[ROLL]);
3285                         float b = DEG2RAD(angles[PITCH]);
3286                         float c = DEG2RAD(angles[YAW]);
3287                         float cy, sy, cp, sp, cr, sr;
3288                         float test[4][3];
3289                         // smd matrix construction, for comparing
3290                         sy = sin(c);
3291                         cy = cos(c);
3292                         sp = sin(b);
3293                         cp = cos(b);
3294                         sr = sin(a);
3295                         cr = cos(a);
3296
3297                         test[0][0] = cp*cy;
3298                         test[0][1] = cp*sy;
3299                         test[0][2] = -sp;
3300                         test[1][0] = sr*sp*cy+cr*-sy;
3301                         test[1][1] = sr*sp*sy+cr*cy;
3302                         test[1][2] = sr*cp;
3303                         test[2][0] = (cr*sp*cy+-sr*-sy);
3304                         test[2][1] = (cr*sp*sy+-sr*cy);
3305                         test[2][2] = cr*cp;
3306                         test[3][0] = pose[9];
3307                         test[3][1] = pose[10];
3308                         test[3][2] = pose[11];
3309 }
3310 #endif
3311                         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]));
3312                         if (l > 0)
3313                                 outbufferpos += l;
3314                 }
3315         }
3316         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3317         if (l > 0)
3318                 outbufferpos += l;
3319         if (writetriangles)
3320         {
3321                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "triangles\n");
3322                 if (l > 0)
3323                         outbufferpos += l;
3324                 for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3325                 {
3326                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3327                         {
3328                                 counttriangles++;
3329                                 if (outbufferpos >= outbuffermax >> 1)
3330                                 {
3331                                         outbuffermax *= 2;
3332                                         oldbuffer = outbuffer;
3333                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3334                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3335                                         Z_Free(oldbuffer);
3336                                 }
3337                                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%s\n", surface->texture && surface->texture->name[0] ? surface->texture->name : "default.bmp");
3338                                 if (l > 0)
3339                                         outbufferpos += l;
3340                                 for (cornerindex = 0;cornerindex < 3;cornerindex++)
3341                                 {
3342                                         const int index = e[2-cornerindex];
3343                                         const float *v = model->surfmesh.data_vertex3f + index * 3;
3344                                         const float *vn = model->surfmesh.data_normal3f + index * 3;
3345                                         const float *vt = model->surfmesh.data_texcoordtexture2f + index * 2;
3346                                         const int b = model->surfmesh.blends[index];
3347                                         if (b < model->num_bones)
3348                                                 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]);
3349                                         else
3350                                         {
3351                                                 const blendweights_t *w = model->surfmesh.data_blendweights + b - model->num_bones;
3352                                                 const unsigned char *wi = w->index;
3353                                                 const unsigned char *wf = w->influence;
3354                                             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);
3355                                                 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);
3356                                                 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);
3357                                                 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]);
3358                                         }
3359                                         if (l > 0)
3360                                                 outbufferpos += l;
3361                                 }
3362                         }
3363                 }
3364                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3365                 if (l > 0)
3366                         outbufferpos += l;
3367         }
3368
3369         FS_WriteFile(filename, outbuffer, outbufferpos);
3370         Z_Free(outbuffer);
3371
3372         Con_Printf("Wrote %s (%i bytes, %i nodes, %i frames, %i triangles)\n", filename, (int)outbufferpos, countnodes, countframes, counttriangles);
3373 }
3374
3375 /*
3376 ================
3377 Mod_Decompile_f
3378
3379 decompiles a model to editable files
3380 ================
3381 */
3382 static void Mod_Decompile_f(void)
3383 {
3384         int i, j, k, l, first, count;
3385         dp_model_t *mod;
3386         char inname[MAX_QPATH];
3387         char outname[MAX_QPATH];
3388         char mtlname[MAX_QPATH];
3389         char basename[MAX_QPATH];
3390         char animname[MAX_QPATH];
3391         char animname2[MAX_QPATH];
3392         char zymtextbuffer[16384];
3393         char dpmtextbuffer[16384];
3394         char framegroupstextbuffer[16384];
3395         int zymtextsize = 0;
3396         int dpmtextsize = 0;
3397         int framegroupstextsize = 0;
3398         char vabuf[1024];
3399
3400         if (Cmd_Argc() != 2)
3401         {
3402                 Con_Print("usage: modeldecompile <filename>\n");
3403                 return;
3404         }
3405
3406         strlcpy(inname, Cmd_Argv(1), sizeof(inname));
3407         FS_StripExtension(inname, basename, sizeof(basename));
3408
3409         mod = Mod_ForName(inname, false, true, inname[0] == '*' ? cl.model_name[1] : NULL);
3410         if (!mod)
3411         {
3412                 Con_Print("No such model\n");
3413                 return;
3414         }
3415         if (mod->brush.submodel)
3416         {
3417                 // if we're decompiling a submodel, be sure to give it a proper name based on its parent
3418                 FS_StripExtension(cl.model_name[1], outname, sizeof(outname));
3419                 dpsnprintf(basename, sizeof(basename), "%s/%s", outname, mod->name);
3420                 outname[0] = 0;
3421         }
3422         if (!mod->surfmesh.num_triangles)
3423         {
3424                 Con_Print("Empty model (or sprite)\n");
3425                 return;
3426         }
3427
3428         // export OBJ if possible (not on sprites)
3429         if (mod->surfmesh.num_triangles)
3430         {
3431                 dpsnprintf(outname, sizeof(outname), "%s_decompiled.obj", basename);
3432                 dpsnprintf(mtlname, sizeof(mtlname), "%s_decompiled.mtl", basename);
3433                 Mod_Decompile_OBJ(mod, outname, mtlname, inname);
3434         }
3435
3436         // export SMD if possible (only for skeletal models)
3437         if (mod->surfmesh.num_triangles && mod->num_bones)
3438         {
3439                 dpsnprintf(outname, sizeof(outname), "%s_decompiled/ref1.smd", basename);
3440                 Mod_Decompile_SMD(mod, outname, 0, 1, true);
3441                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "output out.zym\nscale 1\norigin 0 0 0\nmesh ref1.smd\n");
3442                 if (l > 0) zymtextsize += l;
3443                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "outputdir .\nmodel out\nscale 1\norigin 0 0 0\nscene ref1.smd\n");
3444                 if (l > 0) dpmtextsize += l;
3445                 for (i = 0;i < mod->numframes;i = j)
3446                 {
3447                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3448                         first = mod->animscenes[i].firstframe;
3449                         if (mod->animscenes[i].framecount > 1)
3450                         {
3451                                 // framegroup anim
3452                                 count = mod->animscenes[i].framecount;
3453                                 j = i + 1;
3454                         }
3455                         else
3456                         {
3457                                 // individual frame
3458                                 // check for additional frames with same name
3459                                 for (l = 0, k = strlen(animname);animname[l];l++)
3460                                         if(animname[l] < '0' || animname[l] > '9')
3461                                                 k = l + 1;
3462                                 if(k > 0 && animname[k-1] == '_')
3463                                         --k;
3464                                 animname[k] = 0;
3465                                 count = mod->num_poses - first;
3466                                 for (j = i + 1;j < mod->numframes;j++)
3467                                 {
3468                                         strlcpy(animname2, mod->animscenes[j].name, sizeof(animname2));
3469                                         for (l = 0, k = strlen(animname2);animname2[l];l++)
3470                                                 if(animname2[l] < '0' || animname2[l] > '9')
3471                                                         k = l + 1;
3472                                         if(k > 0 && animname[k-1] == '_')
3473                                                 --k;
3474                                         animname2[k] = 0;
3475                                         if (strcmp(animname2, animname) || mod->animscenes[j].framecount > 1)
3476                                         {
3477                                                 count = mod->animscenes[j].firstframe - first;
3478                                                 break;
3479                                         }
3480                                 }
3481                                 // if it's only one frame, use the original frame name
3482                                 if (j == i + 1)
3483                                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3484
3485                         }
3486                         dpsnprintf(outname, sizeof(outname), "%s_decompiled/%s.smd", basename, animname);
3487                         Mod_Decompile_SMD(mod, outname, first, count, false);
3488                         if (zymtextsize < (int)sizeof(zymtextbuffer) - 100)
3489                         {
3490                                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3491                                 if (l > 0) zymtextsize += l;
3492                         }
3493                         if (dpmtextsize < (int)sizeof(dpmtextbuffer) - 100)
3494                         {
3495                                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3496                                 if (l > 0) dpmtextsize += l;
3497                         }
3498                         if (framegroupstextsize < (int)sizeof(framegroupstextbuffer) - 100)
3499                         {
3500                                 l = dpsnprintf(framegroupstextbuffer + framegroupstextsize, sizeof(framegroupstextbuffer) - framegroupstextsize, "%d %d %f %d // %s\n", first, count, mod->animscenes[i].framerate, mod->animscenes[i].loop, animname);
3501                                 if (l > 0) framegroupstextsize += l;
3502                         }
3503                 }
3504                 if (zymtextsize)
3505                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_zym.txt", basename), zymtextbuffer, (fs_offset_t)zymtextsize);
3506                 if (dpmtextsize)
3507                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_dpm.txt", basename), dpmtextbuffer, (fs_offset_t)dpmtextsize);
3508                 if (framegroupstextsize)
3509                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled.framegroups", basename), framegroupstextbuffer, (fs_offset_t)framegroupstextsize);
3510         }
3511 }
3512
3513 void Mod_AllocLightmap_Init(mod_alloclightmap_state_t *state, int width, int height)
3514 {
3515         int y;
3516         memset(state, 0, sizeof(*state));
3517         state->width = width;
3518         state->height = height;
3519         state->currentY = 0;
3520         state->rows = (mod_alloclightmap_row_t *)Mem_Alloc(loadmodel->mempool, state->height * sizeof(*state->rows));
3521         for (y = 0;y < state->height;y++)
3522         {
3523                 state->rows[y].currentX = 0;
3524                 state->rows[y].rowY = -1;
3525         }
3526 }
3527
3528 void Mod_AllocLightmap_Reset(mod_alloclightmap_state_t *state)
3529 {
3530         int y;
3531         state->currentY = 0;
3532         for (y = 0;y < state->height;y++)
3533         {
3534                 state->rows[y].currentX = 0;
3535                 state->rows[y].rowY = -1;
3536         }
3537 }
3538
3539 void Mod_AllocLightmap_Free(mod_alloclightmap_state_t *state)
3540 {
3541         if (state->rows)
3542                 Mem_Free(state->rows);
3543         memset(state, 0, sizeof(*state));
3544 }
3545
3546 qboolean Mod_AllocLightmap_Block(mod_alloclightmap_state_t *state, int blockwidth, int blockheight, int *outx, int *outy)
3547 {
3548         mod_alloclightmap_row_t *row;
3549         int y;
3550
3551         row = state->rows + blockheight;
3552         if ((row->rowY < 0) || (row->currentX + blockwidth > state->width))
3553         {
3554                 if (state->currentY + blockheight <= state->height)
3555                 {
3556                         // use the current allocation position
3557                         row->rowY = state->currentY;
3558                         row->currentX = 0;
3559                         state->currentY += blockheight;
3560                 }
3561                 else
3562                 {
3563                         // find another position
3564                         for (y = blockheight;y < state->height;y++)
3565                         {
3566                                 if ((state->rows[y].rowY >= 0) && (state->rows[y].currentX + blockwidth <= state->width))
3567                                 {
3568                                         row = state->rows + y;
3569                                         break;
3570                                 }
3571                         }
3572                         if (y == state->height)
3573                                 return false;
3574                 }
3575         }
3576         *outy = row->rowY;
3577         *outx = row->currentX;
3578         row->currentX += blockwidth;
3579
3580         return true;
3581 }
3582
3583 typedef struct lightmapsample_s
3584 {
3585         float pos[3];
3586         float sh1[4][3];
3587         float *vertex_color;
3588         unsigned char *lm_bgr;
3589         unsigned char *lm_dir;
3590 }
3591 lightmapsample_t;
3592
3593 typedef struct lightmapvertex_s
3594 {
3595         int index;
3596         float pos[3];
3597         float normal[3];
3598         float texcoordbase[2];
3599         float texcoordlightmap[2];
3600         float lightcolor[4];
3601 }
3602 lightmapvertex_t;
3603
3604 typedef struct lightmaptriangle_s
3605 {
3606         int triangleindex;
3607         int surfaceindex;
3608         int lightmapindex;
3609         int axis;
3610         int lmoffset[2];
3611         int lmsize[2];
3612         // 2D modelspace coordinates of min corner
3613         // snapped to lightmap grid but not in grid coordinates
3614         float lmbase[2];
3615         // 2D modelspace to lightmap coordinate scale
3616         float lmscale[2];
3617         float vertex[3][3];
3618         float mins[3];
3619         float maxs[3];
3620 }
3621 lightmaptriangle_t;
3622
3623 typedef struct lightmaplight_s
3624 {
3625         float origin[3];
3626         float radius;
3627         float iradius;
3628         float radius2;
3629         float color[3];
3630         svbsp_t svbsp;
3631 }
3632 lightmaplight_t;
3633
3634 lightmaptriangle_t *mod_generatelightmaps_lightmaptriangles;
3635
3636 #define MAX_LIGHTMAPSAMPLES 64
3637 static int mod_generatelightmaps_numoffsets[3];
3638 static float mod_generatelightmaps_offsets[3][MAX_LIGHTMAPSAMPLES][3];
3639
3640 static int mod_generatelightmaps_numlights;
3641 static lightmaplight_t *mod_generatelightmaps_lightinfo;
3642
3643 extern cvar_t r_shadow_lightattenuationdividebias;
3644 extern cvar_t r_shadow_lightattenuationlinearscale;
3645
3646 static void Mod_GenerateLightmaps_LightPoint(dp_model_t *model, const vec3_t pos, vec3_t ambient, vec3_t diffuse, vec3_t lightdir)
3647 {
3648         int i;
3649         int index;
3650         int result;
3651         float relativepoint[3];
3652         float color[3];
3653         float dir[3];
3654         float dist;
3655         float dist2;
3656         float intensity;
3657         float sample[5*3];
3658         float lightorigin[3];
3659         float lightradius;
3660         float lightradius2;
3661         float lightiradius;
3662         float lightcolor[3];
3663         trace_t trace;
3664         for (i = 0;i < 5*3;i++)
3665                 sample[i] = 0.0f;
3666         for (index = 0;;index++)
3667         {
3668                 result = R_Shadow_GetRTLightInfo(index, lightorigin, &lightradius, lightcolor);
3669                 if (result < 0)
3670                         break;
3671                 if (result == 0)
3672                         continue;
3673                 lightradius2 = lightradius * lightradius;
3674                 VectorSubtract(lightorigin, pos, relativepoint);
3675                 dist2 = VectorLength2(relativepoint);
3676                 if (dist2 >= lightradius2)
3677                         continue;
3678                 lightiradius = 1.0f / lightradius;
3679                 dist = sqrt(dist2) * lightiradius;
3680                 intensity = (1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist);
3681                 if (intensity <= 0.0f)
3682                         continue;
3683                 if (model && model->TraceLine)
3684                 {
3685                         model->TraceLine(model, NULL, NULL, &trace, pos, lightorigin, SUPERCONTENTS_VISBLOCKERMASK);
3686                         if (trace.fraction < 1)
3687                                 continue;
3688                 }
3689                 // scale down intensity to add to both ambient and diffuse
3690                 //intensity *= 0.5f;
3691                 VectorNormalize(relativepoint);
3692                 VectorScale(lightcolor, intensity, color);
3693                 VectorMA(sample    , 0.5f            , color, sample    );
3694                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3695                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3696                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3697                 // calculate a weighted average light direction as well
3698                 intensity *= VectorLength(color);
3699                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3700         }
3701         // calculate the direction we'll use to reduce the sample to a directional light source
3702         VectorCopy(sample + 12, dir);
3703         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3704         VectorNormalize(dir);
3705         // extract the diffuse color along the chosen direction and scale it
3706         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]);
3707         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]);
3708         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]);
3709         // subtract some of diffuse from ambient
3710         VectorMA(sample, -0.333f, diffuse, ambient);
3711         // store the normalized lightdir
3712         VectorCopy(dir, lightdir);
3713 }
3714
3715 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(const dp_model_t *model, svbsp_t *svbsp, const float *mins, const float *maxs)
3716 {
3717         int surfaceindex;
3718         int triangleindex;
3719         const msurface_t *surface;
3720         const float *vertex3f = model->surfmesh.data_vertex3f;
3721         const int *element3i = model->surfmesh.data_element3i;
3722         const int *e;
3723         float v2[3][3];
3724         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->nummodelsurfaces;surfaceindex++, surface++)
3725         {
3726                 if (!BoxesOverlap(surface->mins, surface->maxs, mins, maxs))
3727                         continue;
3728                 if (surface->texture->basematerialflags & MATERIALFLAG_NOSHADOW)
3729                         continue;
3730                 for (triangleindex = 0, e = element3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3731                 {
3732                         VectorCopy(vertex3f + 3*e[0], v2[0]);
3733                         VectorCopy(vertex3f + 3*e[1], v2[1]);
3734                         VectorCopy(vertex3f + 3*e[2], v2[2]);
3735                         SVBSP_AddPolygon(svbsp, 3, v2[0], true, NULL, NULL, 0);
3736                 }
3737         }
3738 }
3739
3740 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(dp_model_t *model, lightmaplight_t *lightinfo)
3741 {
3742         int maxnodes = 1<<14;
3743         svbsp_node_t *nodes;
3744         float origin[3];
3745         float mins[3];
3746         float maxs[3];
3747         svbsp_t svbsp;
3748         VectorSet(mins, lightinfo->origin[0] - lightinfo->radius, lightinfo->origin[1] - lightinfo->radius, lightinfo->origin[2] - lightinfo->radius);
3749         VectorSet(maxs, lightinfo->origin[0] + lightinfo->radius, lightinfo->origin[1] + lightinfo->radius, lightinfo->origin[2] + lightinfo->radius);
3750         VectorCopy(lightinfo->origin, origin);
3751         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3752         for (;;)
3753         {
3754                 SVBSP_Init(&svbsp, origin, maxnodes, nodes);
3755                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(model, &svbsp, mins, maxs);
3756                 if (svbsp.ranoutofnodes)
3757                 {
3758                         maxnodes *= 16;
3759                         if (maxnodes > 1<<22)
3760                         {
3761                                 Mem_Free(nodes);
3762                                 return;
3763                         }
3764                         Mem_Free(nodes);
3765                         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3766                 }
3767                 else
3768                         break;
3769         }
3770         if (svbsp.numnodes > 0)
3771         {
3772                 svbsp.nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, svbsp.numnodes * sizeof(*nodes));
3773                 memcpy(svbsp.nodes, nodes, svbsp.numnodes * sizeof(*nodes));
3774                 lightinfo->svbsp = svbsp;
3775         }
3776         Mem_Free(nodes);
3777 }
3778
3779 static void Mod_GenerateLightmaps_CreateLights(dp_model_t *model)
3780 {
3781         int index;
3782         int result;
3783         lightmaplight_t *lightinfo;
3784         float origin[3];
3785         float radius;
3786         float color[3];
3787         mod_generatelightmaps_numlights = 0;
3788         for (index = 0;;index++)
3789         {
3790                 result = R_Shadow_GetRTLightInfo(index, origin, &radius, color);
3791                 if (result < 0)
3792                         break;
3793                 if (result > 0)
3794                         mod_generatelightmaps_numlights++;
3795         }
3796         if (mod_generatelightmaps_numlights > 0)
3797         {
3798                 mod_generatelightmaps_lightinfo = (lightmaplight_t *)Mem_Alloc(tempmempool, mod_generatelightmaps_numlights * sizeof(*mod_generatelightmaps_lightinfo));
3799                 lightinfo = mod_generatelightmaps_lightinfo;
3800                 for (index = 0;;index++)
3801                 {
3802                         result = R_Shadow_GetRTLightInfo(index, lightinfo->origin, &lightinfo->radius, lightinfo->color);
3803                         if (result < 0)
3804                                 break;
3805                         if (result > 0)
3806                                 lightinfo++;
3807                 }
3808         }
3809         for (index = 0, lightinfo = mod_generatelightmaps_lightinfo;index < mod_generatelightmaps_numlights;index++, lightinfo++)
3810         {
3811                 lightinfo->iradius = 1.0f / lightinfo->radius;
3812                 lightinfo->radius2 = lightinfo->radius * lightinfo->radius;
3813                 // TODO: compute svbsp
3814                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(model, lightinfo);
3815         }
3816 }
3817
3818 static void Mod_GenerateLightmaps_DestroyLights(dp_model_t *model)
3819 {
3820         int i;
3821         if (mod_generatelightmaps_lightinfo)
3822         {
3823                 for (i = 0;i < mod_generatelightmaps_numlights;i++)
3824                         if (mod_generatelightmaps_lightinfo[i].svbsp.nodes)
3825                                 Mem_Free(mod_generatelightmaps_lightinfo[i].svbsp.nodes);
3826                 Mem_Free(mod_generatelightmaps_lightinfo);
3827         }
3828         mod_generatelightmaps_lightinfo = NULL;
3829         mod_generatelightmaps_numlights = 0;
3830 }
3831
3832 static qboolean Mod_GenerateLightmaps_SamplePoint_SVBSP(const svbsp_t *svbsp, const float *pos)
3833 {
3834         const svbsp_node_t *node;
3835         const svbsp_node_t *nodes = svbsp->nodes;
3836         int num = 0;
3837         while (num >= 0)
3838         {
3839                 node = nodes + num;
3840                 num = node->children[DotProduct(node->plane, pos) < node->plane[3]];
3841         }
3842         return num == -1; // true if empty, false if solid (shadowed)
3843 }
3844
3845 static void Mod_GenerateLightmaps_SamplePoint(const float *pos, const float *normal, float *sample, int numoffsets, const float *offsets)
3846 {
3847         int i;
3848         float relativepoint[3];
3849         float color[3];
3850         float offsetpos[3];
3851         float dist;
3852         float dist2;
3853         float intensity;
3854         int offsetindex;
3855         int hits;
3856         int tests;
3857         const lightmaplight_t *lightinfo;
3858         trace_t trace;
3859         for (i = 0;i < 5*3;i++)
3860                 sample[i] = 0.0f;
3861         for (i = 0, lightinfo = mod_generatelightmaps_lightinfo;i < mod_generatelightmaps_numlights;i++, lightinfo++)
3862         {
3863                 //R_SampleRTLights(pos, sample, numoffsets, offsets);
3864                 VectorSubtract(lightinfo->origin, pos, relativepoint);
3865                 // don't accept light from behind a surface, it causes bad shading
3866                 if (normal && DotProduct(relativepoint, normal) <= 0)
3867                         continue;
3868                 dist2 = VectorLength2(relativepoint);
3869                 if (dist2 >= lightinfo->radius2)
3870                         continue;
3871                 dist = sqrt(dist2) * lightinfo->iradius;
3872                 intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
3873                 if (intensity <= 0)
3874                         continue;
3875                 if (cl.worldmodel && cl.worldmodel->TraceLine && numoffsets > 0)
3876                 {
3877                         hits = 0;
3878                         tests = 1;
3879                         if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, pos))
3880                                 hits++;
3881                         for (offsetindex = 1;offsetindex < numoffsets;offsetindex++)
3882                         {
3883                                 VectorAdd(pos, offsets + 3*offsetindex, offsetpos);
3884                                 if (!normal)
3885                                 {
3886                                         // for light grid we'd better check visibility of the offset point
3887                                         cl.worldmodel->TraceLine(cl.worldmodel, NULL, NULL, &trace, pos, offsetpos, SUPERCONTENTS_VISBLOCKERMASK);
3888                                         if (trace.fraction < 1)
3889                                                 VectorLerp(pos, trace.fraction, offsetpos, offsetpos);
3890                                 }
3891                                 tests++;
3892                                 if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, offsetpos))
3893                                         hits++;
3894                         }
3895                         if (!hits)
3896                                 continue;
3897                         // scale intensity according to how many rays succeeded
3898                         // we know one test is valid, half of the rest will fail...
3899                         //if (normal && tests > 1)
3900                         //      intensity *= (tests - 1.0f) / tests;
3901                         intensity *= (float)hits / tests;
3902                 }
3903                 // scale down intensity to add to both ambient and diffuse
3904                 //intensity *= 0.5f;
3905                 VectorNormalize(relativepoint);
3906                 VectorScale(lightinfo->color, intensity, color);
3907                 VectorMA(sample    , 0.5f            , color, sample    );
3908                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3909                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3910                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3911                 // calculate a weighted average light direction as well
3912                 intensity *= VectorLength(color);
3913                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3914         }
3915 }
3916
3917 static void Mod_GenerateLightmaps_LightmapSample(const float *pos, const float *normal, unsigned char *lm_bgr, unsigned char *lm_dir)
3918 {
3919         float sample[5*3];
3920         float color[3];
3921         float dir[3];
3922         float f;
3923         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[0], mod_generatelightmaps_offsets[0][0]);
3924         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3925         VectorCopy(sample + 12, dir);
3926         VectorNormalize(dir);
3927         //VectorAdd(dir, normal, dir);
3928         //VectorNormalize(dir);
3929         f = DotProduct(dir, normal);
3930         f = max(0, f) * 255.0f;
3931         VectorScale(sample, f, color);
3932         //VectorCopy(normal, dir);
3933         VectorSet(dir, (dir[0]+1.0f)*127.5f, (dir[1]+1.0f)*127.5f, (dir[2]+1.0f)*127.5f);
3934         lm_bgr[0] = (unsigned char)bound(0.0f, color[2], 255.0f);
3935         lm_bgr[1] = (unsigned char)bound(0.0f, color[1], 255.0f);
3936         lm_bgr[2] = (unsigned char)bound(0.0f, color[0], 255.0f);
3937         lm_bgr[3] = 255;
3938         lm_dir[0] = (unsigned char)dir[2];
3939         lm_dir[1] = (unsigned char)dir[1];
3940         lm_dir[2] = (unsigned char)dir[0];
3941         lm_dir[3] = 255;
3942 }
3943
3944 static void Mod_GenerateLightmaps_VertexSample(const float *pos, const float *normal, float *vertex_color)
3945 {
3946         float sample[5*3];
3947         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[1], mod_generatelightmaps_offsets[1][0]);
3948         VectorCopy(sample, vertex_color);
3949 }
3950
3951 static void Mod_GenerateLightmaps_GridSample(const float *pos, q3dlightgrid_t *s)
3952 {
3953         float sample[5*3];
3954         float ambient[3];
3955         float diffuse[3];
3956         float dir[3];
3957         Mod_GenerateLightmaps_SamplePoint(pos, NULL, sample, mod_generatelightmaps_numoffsets[2], mod_generatelightmaps_offsets[2][0]);
3958         // calculate the direction we'll use to reduce the sample to a directional light source
3959         VectorCopy(sample + 12, dir);
3960         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3961         VectorNormalize(dir);
3962         // extract the diffuse color along the chosen direction and scale it
3963         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]) * 127.5f;
3964         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]) * 127.5f;
3965         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]) * 127.5f;
3966         // scale the ambient from 0-2 to 0-255 and subtract some of diffuse
3967         VectorScale(sample, 127.5f, ambient);
3968         VectorMA(ambient, -0.333f, diffuse, ambient);
3969         // encode to the grid format
3970         s->ambientrgb[0] = (unsigned char)bound(0.0f, ambient[0], 255.0f);
3971         s->ambientrgb[1] = (unsigned char)bound(0.0f, ambient[1], 255.0f);
3972         s->ambientrgb[2] = (unsigned char)bound(0.0f, ambient[2], 255.0f);
3973         s->diffusergb[0] = (unsigned char)bound(0.0f, diffuse[0], 255.0f);
3974         s->diffusergb[1] = (unsigned char)bound(0.0f, diffuse[1], 255.0f);
3975         s->diffusergb[2] = (unsigned char)bound(0.0f, diffuse[2], 255.0f);
3976         if (dir[2] >= 0.99f) {s->diffusepitch = 0;s->diffuseyaw = 0;}
3977         else if (dir[2] <= -0.99f) {s->diffusepitch = 128;s->diffuseyaw = 0;}
3978         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));}
3979 }
3980
3981 static void Mod_GenerateLightmaps_InitSampleOffsets(dp_model_t *model)
3982 {
3983         float radius[3];
3984         float temp[3];
3985         int i, j;
3986         memset(mod_generatelightmaps_offsets, 0, sizeof(mod_generatelightmaps_offsets));
3987         mod_generatelightmaps_numoffsets[0] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_lightmapsamples.integer);
3988         mod_generatelightmaps_numoffsets[1] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_vertexsamples.integer);
3989         mod_generatelightmaps_numoffsets[2] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_gridsamples.integer);
3990         radius[0] = mod_generatelightmaps_lightmapradius.value;
3991         radius[1] = mod_generatelightmaps_vertexradius.value;
3992         radius[2] = mod_generatelightmaps_gridradius.value;
3993         for (i = 0;i < 3;i++)
3994         {
3995                 for (j = 1;j < mod_generatelightmaps_numoffsets[i];j++)
3996                 {
3997                         VectorRandom(temp);
3998                         VectorScale(temp, radius[i], mod_generatelightmaps_offsets[i][j]);
3999                 }
4000         }
4001 }
4002
4003 static void Mod_GenerateLightmaps_DestroyLightmaps(dp_model_t *model)
4004 {
4005         msurface_t *surface;
4006         int surfaceindex;
4007         int i;
4008         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4009         {
4010                 surface = model->data_surfaces + surfaceindex;
4011                 surface->lightmaptexture = NULL;
4012                 surface->deluxemaptexture = NULL;
4013         }
4014         if (model->brushq3.data_lightmaps)
4015         {
4016                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
4017                         if (model->brushq3.data_lightmaps[i])
4018                                 R_FreeTexture(model->brushq3.data_lightmaps[i]);
4019                 Mem_Free(model->brushq3.data_lightmaps);
4020                 model->brushq3.data_lightmaps = NULL;
4021         }
4022         if (model->brushq3.data_deluxemaps)
4023         {
4024                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
4025                         if (model->brushq3.data_deluxemaps[i])
4026                                 R_FreeTexture(model->brushq3.data_deluxemaps[i]);
4027                 Mem_Free(model->brushq3.data_deluxemaps);
4028                 model->brushq3.data_deluxemaps = NULL;
4029         }
4030 }
4031
4032 static void Mod_GenerateLightmaps_UnweldTriangles(dp_model_t *model)
4033 {
4034         msurface_t *surface;
4035         int surfaceindex;
4036         int vertexindex;
4037         int outvertexindex;
4038         int i;
4039         const int *e;
4040         surfmesh_t oldsurfmesh;
4041         size_t size;
4042         unsigned char *data;
4043         oldsurfmesh = model->surfmesh;
4044         model->surfmesh.num_triangles = oldsurfmesh.num_triangles;
4045         model->surfmesh.num_vertices = oldsurfmesh.num_triangles * 3;
4046         size = 0;
4047         size += model->surfmesh.num_vertices * sizeof(float[3]);
4048         size += model->surfmesh.num_vertices * sizeof(float[3]);
4049         size += model->surfmesh.num_vertices * sizeof(float[3]);
4050         size += model->surfmesh.num_vertices * sizeof(float[3]);
4051         size += model->surfmesh.num_vertices * sizeof(float[2]);
4052         size += model->surfmesh.num_vertices * sizeof(float[2]);
4053         size += model->surfmesh.num_vertices * sizeof(float[4]);
4054         data = (unsigned char *)Mem_Alloc(model->mempool, size);
4055         model->surfmesh.data_vertex3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4056         model->surfmesh.data_normal3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4057         model->surfmesh.data_svector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4058         model->surfmesh.data_tvector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4059         model->surfmesh.data_texcoordtexture2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
4060         model->surfmesh.data_texcoordlightmap2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
4061         model->surfmesh.data_lightmapcolor4f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[4]);
4062         if (model->surfmesh.num_vertices > 65536)
4063                 model->surfmesh.data_element3s = NULL;
4064
4065         if (model->surfmesh.vertexmesh)
4066                 Mem_Free(model->surfmesh.vertexmesh);
4067         model->surfmesh.vertexmesh = NULL;
4068         if (model->surfmesh.vertex3fbuffer)
4069                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vertex3fbuffer);
4070         model->surfmesh.vertex3fbuffer = NULL;
4071         if (model->surfmesh.vertexmeshbuffer)
4072                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vertexmeshbuffer);
4073         model->surfmesh.vertexmeshbuffer = NULL;
4074         if (model->surfmesh.data_element3i_indexbuffer)
4075                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3i_indexbuffer);
4076         model->surfmesh.data_element3i_indexbuffer = NULL;
4077         if (model->surfmesh.data_element3s_indexbuffer)
4078                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3s_indexbuffer);
4079         model->surfmesh.data_element3s_indexbuffer = NULL;
4080         if (model->surfmesh.vbo_vertexbuffer)
4081                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vbo_vertexbuffer);
4082         model->surfmesh.vbo_vertexbuffer = 0;
4083
4084         // convert all triangles to unique vertex data
4085         outvertexindex = 0;
4086         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4087         {
4088                 surface = model->data_surfaces + surfaceindex;
4089                 surface->num_firstvertex = outvertexindex;
4090                 surface->num_vertices = surface->num_triangles*3;
4091                 e = oldsurfmesh.data_element3i + surface->num_firsttriangle*3;
4092                 for (i = 0;i < surface->num_triangles*3;i++)
4093                 {
4094                         vertexindex = e[i];
4095                         model->surfmesh.data_vertex3f[outvertexindex*3+0] = oldsurfmesh.data_vertex3f[vertexindex*3+0];
4096                         model->surfmesh.data_vertex3f[outvertexindex*3+1] = oldsurfmesh.data_vertex3f[vertexindex*3+1];
4097                         model->surfmesh.data_vertex3f[outvertexindex*3+2] = oldsurfmesh.data_vertex3f[vertexindex*3+2];
4098                         model->surfmesh.data_normal3f[outvertexindex*3+0] = oldsurfmesh.data_normal3f[vertexindex*3+0];
4099                         model->surfmesh.data_normal3f[outvertexindex*3+1] = oldsurfmesh.data_normal3f[vertexindex*3+1];
4100                         model->surfmesh.data_normal3f[outvertexindex*3+2] = oldsurfmesh.data_normal3f[vertexindex*3+2];
4101                         model->surfmesh.data_svector3f[outvertexindex*3+0] = oldsurfmesh.data_svector3f[vertexindex*3+0];
4102                         model->surfmesh.data_svector3f[outvertexindex*3+1] = oldsurfmesh.data_svector3f[vertexindex*3+1];
4103                         model->surfmesh.data_svector3f[outvertexindex*3+2] = oldsurfmesh.data_svector3f[vertexindex*3+2];
4104                         model->surfmesh.data_tvector3f[outvertexindex*3+0] = oldsurfmesh.data_tvector3f[vertexindex*3+0];
4105                         model->surfmesh.data_tvector3f[outvertexindex*3+1] = oldsurfmesh.data_tvector3f[vertexindex*3+1];
4106                         model->surfmesh.data_tvector3f[outvertexindex*3+2] = oldsurfmesh.data_tvector3f[vertexindex*3+2];
4107                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+0];
4108                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+1];
4109                         if (oldsurfmesh.data_texcoordlightmap2f)
4110                         {
4111                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+0];
4112                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+1];
4113                         }
4114                         if (oldsurfmesh.data_lightmapcolor4f)
4115                         {
4116                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+0] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+0];
4117                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+1] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+1];
4118                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+2] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+2];
4119                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+3] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+3];
4120                         }
4121                         else
4122                                 Vector4Set(model->surfmesh.data_lightmapcolor4f + 4*outvertexindex, 1, 1, 1, 1);
4123                         model->surfmesh.data_element3i[surface->num_firsttriangle*3+i] = outvertexindex;
4124                         outvertexindex++;
4125                 }
4126         }
4127         if (model->surfmesh.data_element3s)
4128                 for (i = 0;i < model->surfmesh.num_triangles*3;i++)
4129                         model->surfmesh.data_element3s[i] = model->surfmesh.data_element3i[i];
4130
4131         // find and update all submodels to use this new surfmesh data
4132         for (i = 0;i < model->brush.numsubmodels;i++)
4133                 model->brush.submodels[i]->surfmesh = model->surfmesh;
4134 }
4135
4136 static void Mod_GenerateLightmaps_CreateTriangleInformation(dp_model_t *model)
4137 {
4138         msurface_t *surface;
4139         int surfaceindex;
4140         int i;
4141         int axis;
4142         float normal[3];
4143         const int *e;
4144         lightmaptriangle_t *triangle;
4145         // generate lightmap triangle structs
4146         mod_generatelightmaps_lightmaptriangles = (lightmaptriangle_t *)Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4147         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4148         {
4149                 surface = model->data_surfaces + surfaceindex;
4150                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4151                 for (i = 0;i < surface->num_triangles;i++)
4152                 {
4153                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4154                         triangle->triangleindex = surface->num_firsttriangle+i;
4155                         triangle->surfaceindex = surfaceindex;
4156                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+0], triangle->vertex[0]);
4157                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+1], triangle->vertex[1]);
4158                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+2], triangle->vertex[2]);
4159                         // calculate bounds of triangle
4160                         triangle->mins[0] = min(triangle->vertex[0][0], min(triangle->vertex[1][0], triangle->vertex[2][0]));
4161                         triangle->mins[1] = min(triangle->vertex[0][1], min(triangle->vertex[1][1], triangle->vertex[2][1]));
4162                         triangle->mins[2] = min(triangle->vertex[0][2], min(triangle->vertex[1][2], triangle->vertex[2][2]));
4163                         triangle->maxs[0] = max(triangle->vertex[0][0], max(triangle->vertex[1][0], triangle->vertex[2][0]));
4164                         triangle->maxs[1] = max(triangle->vertex[0][1], max(triangle->vertex[1][1], triangle->vertex[2][1]));
4165                         triangle->maxs[2] = max(triangle->vertex[0][2], max(triangle->vertex[1][2], triangle->vertex[2][2]));
4166                         // pick an axial projection based on the triangle normal
4167                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], normal);
4168                         axis = 0;
4169                         if (fabs(normal[1]) > fabs(normal[axis]))
4170                                 axis = 1;
4171                         if (fabs(normal[2]) > fabs(normal[axis]))
4172                                 axis = 2;
4173                         triangle->axis = axis;
4174                 }
4175         }
4176 }
4177
4178 static void Mod_GenerateLightmaps_DestroyTriangleInformation(dp_model_t *model)
4179 {
4180         if (mod_generatelightmaps_lightmaptriangles)
4181                 Mem_Free(mod_generatelightmaps_lightmaptriangles);
4182         mod_generatelightmaps_lightmaptriangles = NULL;
4183 }
4184
4185 float lmaxis[3][3] = {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}};
4186
4187 static void Mod_GenerateLightmaps_CreateLightmaps(dp_model_t *model)
4188 {
4189         msurface_t *surface;
4190         int surfaceindex;
4191         int lightmapindex;
4192         int lightmapnumber;
4193         int i;
4194         int j;
4195         int k;
4196         int x;
4197         int y;
4198         int axis;
4199         int axis1;
4200         int axis2;
4201         int retry;
4202         int pixeloffset;
4203         float trianglenormal[3];
4204         float samplecenter[3];
4205         float samplenormal[3];
4206         float temp[3];
4207         float lmiscale[2];
4208         float slopex;
4209         float slopey;
4210         float slopebase;
4211         float lmscalepixels;
4212         float lmmins;
4213         float lmmaxs;
4214         float lm_basescalepixels;
4215         int lm_borderpixels;
4216         int lm_texturesize;
4217         //int lm_maxpixels;
4218         const int *e;
4219         lightmaptriangle_t *triangle;
4220         unsigned char *lightmappixels;
4221         unsigned char *deluxemappixels;
4222         mod_alloclightmap_state_t lmstate;
4223         char vabuf[1024];
4224
4225         // generate lightmap projection information for all triangles
4226         if (model->texturepool == NULL)
4227                 model->texturepool = R_AllocTexturePool();
4228         lm_basescalepixels = 1.0f / max(0.0001f, mod_generatelightmaps_unitspersample.value);
4229         lm_borderpixels = mod_generatelightmaps_borderpixels.integer;
4230         lm_texturesize = bound(lm_borderpixels*2+1, 64, (int)vid.maxtexturesize_2d);
4231         //lm_maxpixels = lm_texturesize-(lm_borderpixels*2+1);
4232         Mod_AllocLightmap_Init(&lmstate, lm_texturesize, lm_texturesize);
4233         lightmapnumber = 0;
4234         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4235         {
4236                 surface = model->data_surfaces + surfaceindex;
4237                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4238                 lmscalepixels = lm_basescalepixels;
4239                 for (retry = 0;retry < 30;retry++)
4240                 {
4241                         // after a couple failed attempts, degrade quality to make it fit
4242                         if (retry > 1)
4243                                 lmscalepixels *= 0.5f;
4244                         for (i = 0;i < surface->num_triangles;i++)
4245                         {
4246                                 triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4247                                 triangle->lightmapindex = lightmapnumber;
4248                                 // calculate lightmap bounds in 3D pixel coordinates, limit size,
4249                                 // pick two planar axes for projection
4250                                 // lightmap coordinates here are in pixels
4251                                 // lightmap projections are snapped to pixel grid explicitly, such
4252                                 // that two neighboring triangles sharing an edge and projection
4253                                 // axis will have identical sampl espacing along their shared edge
4254                                 k = 0;
4255                                 for (j = 0;j < 3;j++)
4256                                 {
4257                                         if (j == triangle->axis)
4258                                                 continue;
4259                                         lmmins = floor(triangle->mins[j]*lmscalepixels)-lm_borderpixels;
4260                                         lmmaxs = floor(triangle->maxs[j]*lmscalepixels)+lm_borderpixels;
4261                                         triangle->lmsize[k] = (int)(lmmaxs-lmmins);
4262                                         triangle->lmbase[k] = lmmins/lmscalepixels;
4263                                         triangle->lmscale[k] = lmscalepixels;
4264                                         k++;
4265                                 }
4266                                 if (!Mod_AllocLightmap_Block(&lmstate, triangle->lmsize[0], triangle->lmsize[1], &triangle->lmoffset[0], &triangle->lmoffset[1]))
4267                                         break;
4268                         }
4269                         // if all fit in this texture, we're done with this surface
4270                         if (i == surface->num_triangles)
4271                                 break;
4272                         // if we haven't maxed out the lightmap size yet, we retry the
4273                         // entire surface batch...
4274                         if (lm_texturesize * 2 <= min(mod_generatelightmaps_texturesize.integer, (int)vid.maxtexturesize_2d))
4275                         {
4276                                 lm_texturesize *= 2;
4277                                 surfaceindex = -1;
4278                                 lightmapnumber = 0;
4279                                 Mod_AllocLightmap_Free(&lmstate);
4280                                 Mod_AllocLightmap_Init(&lmstate, lm_texturesize, lm_texturesize);
4281                                 break;
4282                         }
4283                         // if we have maxed out the lightmap size, and this triangle does
4284                         // not fit in the same texture as the rest of the surface, we have
4285                         // to retry the entire surface in a new texture (can only use one)
4286                         // with multiple retries, the lightmap quality degrades until it
4287                         // fits (or gives up)
4288                         if (surfaceindex > 0)
4289                                 lightmapnumber++;
4290                         Mod_AllocLightmap_Reset(&lmstate);
4291                 }
4292         }
4293         lightmapnumber++;
4294         Mod_AllocLightmap_Free(&lmstate);
4295
4296         // now put triangles together into lightmap textures, and do not allow
4297         // triangles of a surface to go into different textures (as that would
4298         // require rewriting the surface list)
4299         model->brushq3.deluxemapping_modelspace = true;
4300         model->brushq3.deluxemapping = true;
4301         model->brushq3.num_mergedlightmaps = lightmapnumber;
4302         model->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4303         model->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4304         lightmappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4305         deluxemappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4306         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4307         {
4308                 surface = model->data_surfaces + surfaceindex;
4309                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4310                 for (i = 0;i < surface->num_triangles;i++)
4311                 {
4312                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4313                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], trianglenormal);
4314                         VectorNormalize(trianglenormal);
4315                         VectorCopy(trianglenormal, samplenormal); // FIXME: this is supposed to be interpolated per pixel from vertices
4316                         axis = triangle->axis;
4317                         axis1 = axis == 0 ? 1 : 0;
4318                         axis2 = axis == 2 ? 1 : 2;
4319                         lmiscale[0] = 1.0f / triangle->lmscale[0];
4320                         lmiscale[1] = 1.0f / triangle->lmscale[1];
4321                         if (trianglenormal[axis] < 0)
4322                                 VectorNegate(trianglenormal, trianglenormal);
4323                         CrossProduct(lmaxis[axis2], trianglenormal, temp);slopex = temp[axis] / temp[axis1];
4324                         CrossProduct(lmaxis[axis1], trianglenormal, temp);slopey = temp[axis] / temp[axis2];
4325                         slopebase = triangle->vertex[0][axis] - triangle->vertex[0][axis1]*slopex - triangle->vertex[0][axis2]*slopey;
4326                         for (j = 0;j < 3;j++)
4327                         {
4328                                 float *t2f = model->surfmesh.data_texcoordlightmap2f + e[i*3+j]*2;
4329                                 t2f[0] = ((triangle->vertex[j][axis1] - triangle->lmbase[0]) * triangle->lmscale[0] + triangle->lmoffset[0]) / lm_texturesize;
4330                                 t2f[1] = ((triangle->vertex[j][axis2] - triangle->lmbase[1]) * triangle->lmscale[1] + triangle->lmoffset[1]) / lm_texturesize;
4331 #if 0
4332                                 samplecenter[axis1] = (t2f[0]*lm_texturesize-triangle->lmoffset[0])*lmiscale[0] + triangle->lmbase[0];
4333                                 samplecenter[axis2] = (t2f[1]*lm_texturesize-triangle->lmoffset[1])*lmiscale[1] + triangle->lmbase[1];
4334                                 samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4335                                 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]);
4336 #endif
4337                         }
4338
4339 #if 0
4340                         switch (axis)
4341                         {
4342                         default:
4343                         case 0:
4344                                 forward[0] = 0;
4345                                 forward[1] = 1.0f / triangle->lmscale[0];
4346                                 forward[2] = 0;
4347                                 left[0] = 0;
4348                                 left[1] = 0;
4349                                 left[2] = 1.0f / triangle->lmscale[1];
4350                                 up[0] = 1.0f;
4351                                 up[1] = 0;
4352                                 up[2] = 0;
4353                                 origin[0] = 0;
4354                                 origin[1] = triangle->lmbase[0];
4355                                 origin[2] = triangle->lmbase[1];
4356                                 break;
4357                         case 1:
4358                                 forward[0] = 1.0f / triangle->lmscale[0];
4359                                 forward[1] = 0;
4360                                 forward[2] = 0;
4361                                 left[0] = 0;
4362                                 left[1] = 0;
4363                                 left[2] = 1.0f / triangle->lmscale[1];
4364                                 up[0] = 0;
4365                                 up[1] = 1.0f;
4366                                 up[2] = 0;
4367                                 origin[0] = triangle->lmbase[0];
4368                                 origin[1] = 0;
4369                                 origin[2] = triangle->lmbase[1];
4370                                 break;
4371                         case 2:
4372                                 forward[0] = 1.0f / triangle->lmscale[0];
4373                                 forward[1] = 0;
4374                                 forward[2] = 0;
4375                                 left[0] = 0;
4376                                 left[1] = 1.0f / triangle->lmscale[1];
4377                                 left[2] = 0;
4378                                 up[0] = 0;
4379                                 up[1] = 0;
4380                                 up[2] = 1.0f;
4381                                 origin[0] = triangle->lmbase[0];
4382                                 origin[1] = triangle->lmbase[1];
4383                                 origin[2] = 0;
4384                                 break;
4385                         }
4386                         Matrix4x4_FromVectors(&backmatrix, forward, left, up, origin);
4387 #endif
4388 #define LM_DIST_EPSILON (1.0f / 32.0f)
4389                         for (y = 0;y < triangle->lmsize[1];y++)
4390                         {
4391                                 pixeloffset = ((triangle->lightmapindex * lm_texturesize + y + triangle->lmoffset[1]) * lm_texturesize + triangle->lmoffset[0]) * 4;
4392                                 for (x = 0;x < triangle->lmsize[0];x++, pixeloffset += 4)
4393                                 {
4394                                         samplecenter[axis1] = (x+0.5f)*lmiscale[0] + triangle->lmbase[0];
4395                                         samplecenter[axis2] = (y+0.5f)*lmiscale[1] + triangle->lmbase[1];
4396                                         samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4397                                         VectorMA(samplecenter, 0.125f, samplenormal, samplecenter);
4398                                         Mod_GenerateLightmaps_LightmapSample(samplecenter, samplenormal, lightmappixels + pixeloffset, deluxemappixels + pixeloffset);
4399                                 }
4400                         }
4401                 }
4402         }
4403
4404         for (lightmapindex = 0;lightmapindex < model->brushq3.num_mergedlightmaps;lightmapindex++)
4405         {
4406                 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);
4407                 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);
4408         }
4409
4410         if (lightmappixels)
4411                 Mem_Free(lightmappixels);
4412         if (deluxemappixels)
4413                 Mem_Free(deluxemappixels);
4414
4415         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4416         {
4417                 surface = model->data_surfaces + surfaceindex;
4418                 if (!surface->num_triangles)
4419                         continue;
4420                 lightmapindex = mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle].lightmapindex;
4421                 surface->lightmaptexture = model->brushq3.data_lightmaps[lightmapindex];
4422                 surface->deluxemaptexture = model->brushq3.data_deluxemaps[lightmapindex];
4423                 surface->lightmapinfo = NULL;
4424         }
4425
4426         model->brush.LightPoint = Mod_GenerateLightmaps_LightPoint;
4427         model->brushq1.lightdata = NULL;
4428         model->brushq1.lightmapupdateflags = NULL;
4429         model->brushq1.firstrender = false;
4430         model->brushq1.num_lightstyles = 0;
4431         model->brushq1.data_lightstyleinfo = NULL;
4432         for (i = 0;i < model->brush.numsubmodels;i++)
4433         {
4434                 model->brush.submodels[i]->brushq1.lightmapupdateflags = NULL;
4435                 model->brush.submodels[i]->brushq1.firstrender = false;
4436                 model->brush.submodels[i]->brushq1.num_lightstyles = 0;
4437                 model->brush.submodels[i]->brushq1.data_lightstyleinfo = NULL;
4438         }
4439 }
4440
4441 static void Mod_GenerateLightmaps_UpdateVertexColors(dp_model_t *model)
4442 {
4443         int i;
4444         for (i = 0;i < model->surfmesh.num_vertices;i++)
4445                 Mod_GenerateLightmaps_VertexSample(model->surfmesh.data_vertex3f + 3*i, model->surfmesh.data_normal3f + 3*i, model->surfmesh.data_lightmapcolor4f + 4*i);
4446 }
4447
4448 static void Mod_GenerateLightmaps_UpdateLightGrid(dp_model_t *model)
4449 {
4450         int x;
4451         int y;
4452         int z;
4453         int index = 0;
4454         float pos[3];
4455         for (z = 0;z < model->brushq3.num_lightgrid_isize[2];z++)
4456         {
4457                 pos[2] = (model->brushq3.num_lightgrid_imins[2] + z + 0.5f) * model->brushq3.num_lightgrid_cellsize[2];
4458                 for (y = 0;y < model->brushq3.num_lightgrid_isize[1];y++)
4459                 {
4460                         pos[1] = (model->brushq3.num_lightgrid_imins[1] + y + 0.5f) * model->brushq3.num_lightgrid_cellsize[1];
4461                         for (x = 0;x < model->brushq3.num_lightgrid_isize[0];x++, index++)
4462                         {
4463                                 pos[0] = (model->brushq3.num_lightgrid_imins[0] + x + 0.5f) * model->brushq3.num_lightgrid_cellsize[0];
4464                                 Mod_GenerateLightmaps_GridSample(pos, model->brushq3.data_lightgrid + index);
4465                         }
4466                 }
4467         }
4468 }
4469
4470 extern cvar_t mod_q3bsp_nolightmaps;
4471 static void Mod_GenerateLightmaps(dp_model_t *model)
4472 {
4473         //lightmaptriangle_t *lightmaptriangles = Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4474         dp_model_t *oldloadmodel = loadmodel;
4475         loadmodel = model;
4476
4477         Mod_GenerateLightmaps_InitSampleOffsets(model);
4478         Mod_GenerateLightmaps_DestroyLightmaps(model);
4479         Mod_GenerateLightmaps_UnweldTriangles(model);
4480         Mod_GenerateLightmaps_CreateTriangleInformation(model);
4481         Mod_GenerateLightmaps_CreateLights(model);
4482         if(!mod_q3bsp_nolightmaps.integer)
4483                 Mod_GenerateLightmaps_CreateLightmaps(model);
4484         Mod_GenerateLightmaps_UpdateVertexColors(model);
4485         Mod_GenerateLightmaps_UpdateLightGrid(model);
4486         Mod_GenerateLightmaps_DestroyLights(model);
4487         Mod_GenerateLightmaps_DestroyTriangleInformation(model);
4488
4489         loadmodel = oldloadmodel;
4490 }
4491
4492 static void Mod_GenerateLightmaps_f(void)
4493 {
4494         if (Cmd_Argc() != 1)
4495         {
4496                 Con_Printf("usage: mod_generatelightmaps\n");
4497                 return;
4498         }
4499         if (!cl.worldmodel)
4500         {
4501                 Con_Printf("no worldmodel loaded\n");
4502                 return;
4503         }
4504         Mod_GenerateLightmaps(cl.worldmodel);
4505 }