model_shared.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // models.c -- model loading and caching
  21
  22 // models are the only shared resource between a client and server running
  23 // on the same machine.
  24
  25 #include "quakedef.h"
  26 #include "image.h"
  27 #include "r_shadow.h"
  28 #include "polygon.h"
  29
  30 cvar_t r_mipskins = {CF_CLIENT | CF_ARCHIVE, "r_mipskins", "0", "mipmaps model skins so they render faster in the distance and do not display noise artifacts, can cause discoloration of skins if they contain undesirable border colors"};
  31 cvar_t r_mipnormalmaps = {CF_CLIENT | CF_ARCHIVE, "r_mipnormalmaps", "1", "mipmaps normalmaps (turning it off looks sharper but may have aliasing)"};
  32 cvar_t mod_generatelightmaps_unitspersample = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_unitspersample", "8", "lightmap resolution"};
  33 cvar_t mod_generatelightmaps_borderpixels = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_borderpixels", "2", "extra space around polygons to prevent sampling artifacts"};
  34 cvar_t mod_generatelightmaps_texturesize = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_texturesize", "1024", "size of lightmap textures"};
  35 cvar_t mod_generatelightmaps_lightmapsamples = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_lightmapsamples", "16", "number of shadow tests done per lightmap pixel"};
  36 cvar_t mod_generatelightmaps_vertexsamples = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_vertexsamples", "16", "number of shadow tests done per vertex"};
  37 cvar_t mod_generatelightmaps_gridsamples = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_gridsamples", "64", "number of shadow tests done per lightgrid cell"};
  38 cvar_t mod_generatelightmaps_lightmapradius = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_lightmapradius", "16", "sampling area around each lightmap pixel"};
  39 cvar_t mod_generatelightmaps_vertexradius = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_vertexradius", "16", "sampling area around each vertex"};
  40 cvar_t mod_generatelightmaps_gridradius = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_gridradius", "64", "sampling area around each lightgrid cell center"};
  41
  42 model_t *loadmodel;
  43
  44 // Supported model formats
  45 static modloader_t loader[] =
  46 {
  47         {"obj", NULL, 0, Mod_OBJ_Load},
  48         {NULL, "IDPO", 4, Mod_IDP0_Load},
  49         {NULL, "IDP2", 4, Mod_IDP2_Load},
  50         {NULL, "IDP3", 4, Mod_IDP3_Load},
  51         {NULL, "IDSP", 4, Mod_IDSP_Load},
  52         {NULL, "IDS2", 4, Mod_IDS2_Load},
  53         {NULL, "\035", 1, Mod_Q1BSP_Load},
  54         {NULL, "\036", 1, Mod_HLBSP_Load},
  55         {NULL, "BSP2", 4, Mod_BSP2_Load},
  56         {NULL, "2PSB", 4, Mod_2PSB_Load},
  57         {NULL, "IBSP", 4, Mod_IBSP_Load},
  58         {NULL, "VBSP", 4, Mod_VBSP_Load},
  59         {NULL, "ZYMOTICMODEL", 13, Mod_ZYMOTICMODEL_Load},
  60         {NULL, "DARKPLACESMODEL", 16, Mod_DARKPLACESMODEL_Load},
  61         {NULL, "PSKMODEL", 9, Mod_PSKMODEL_Load},
  62         {NULL, "INTERQUAKEMODEL", 16, Mod_INTERQUAKEMODEL_Load},
  63         {"map", NULL, 0, Mod_MAP_Load},
  64         {NULL, NULL, 0, NULL}
  65 };
  66
  67 static mempool_t *mod_mempool;
  68 static memexpandablearray_t models;
  69
  70 static mempool_t* q3shaders_mem;
  71 typedef struct q3shader_hash_entry_s
  72 {
  73   shader_t shader;
  74   struct q3shader_hash_entry_s* chain;
  75 } q3shader_hash_entry_t;
  76 #define Q3SHADER_HASH_SIZE  1021
  77 typedef struct q3shader_data_s
  78 {
  79   memexpandablearray_t hash_entries;
  80   q3shader_hash_entry_t hash[Q3SHADER_HASH_SIZE];
  81   memexpandablearray_t char_ptrs;
  82 } q3shader_data_t;
  83 static q3shader_data_t* q3shader_data;
  84
  85 static void mod_start(void)
  86 {
  87         int i, count;
  88         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
  89         model_t *mod;
  90
  91         SCR_PushLoadingScreen("Loading models", 1.0);
  92         count = 0;
  93         for (i = 0;i < nummodels;i++)
  94                 if ((mod = (model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  95                         if (mod->used)
  96                                 ++count;
  97         for (i = 0;i < nummodels;i++)
  98                 if ((mod = (model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  99                         if (mod->used)
 100                         {
 101                                 SCR_PushLoadingScreen(mod->name, 1.0 / count);
 102                                 Mod_LoadModel(mod, true, false);
 103                                 SCR_PopLoadingScreen(false);
 104                         }
 105         SCR_PopLoadingScreen(false);
 106 }
 107
 108 static void mod_shutdown(void)
 109 {
 110         int i;
 111         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 112         model_t *mod;
 113
 114         for (i = 0;i < nummodels;i++)
 115                 if ((mod = (model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && (mod->loaded || mod->mempool))
 116                         Mod_UnloadModel(mod);
 117
 118         Mod_FreeQ3Shaders();
 119         Mod_Skeletal_FreeBuffers();
 120 }
 121
 122 static void mod_newmap(void)
 123 {
 124         msurface_t *surface;
 125         int i, j, k, l, surfacenum, ssize, tsize;
 126         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 127         model_t *mod;
 128
 129         for (i = 0;i < nummodels;i++)
 130         {
 131                 if ((mod = (model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool)
 132                 {
 133                         for (j = 0;j < mod->num_textures && mod->data_textures;j++)
 134                         {
 135                                 // note that materialshaderpass and backgroundshaderpass point to shaderpasses[] and so do the pre/post shader ranges, so this catches all of them...
 136                                 for (l = 0; l < Q3SHADER_MAXLAYERS; l++)
 137                                         if (mod->data_textures[j].shaderpasses[l])
 138                                                 for (k = 0; k < mod->data_textures[j].shaderpasses[l]->numframes; k++)
 139                                                         R_SkinFrame_MarkUsed(mod->data_textures[j].shaderpasses[l]->skinframes[k]);
 140                         }
 141                         if (mod->brush.solidskyskinframe)
 142                                 R_SkinFrame_MarkUsed(mod->brush.solidskyskinframe);
 143                         if (mod->brush.alphaskyskinframe)
 144                                 R_SkinFrame_MarkUsed(mod->brush.alphaskyskinframe);
 145                 }
 146         }
 147
 148         if (!cl_stainmaps_clearonload.integer)
 149                 return;
 150
 151         for (i = 0;i < nummodels;i++)
 152         {
 153                 if ((mod = (model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool && mod->data_surfaces)
 154                 {
 155                         for (surfacenum = 0, surface = mod->data_surfaces;surfacenum < mod->num_surfaces;surfacenum++, surface++)
 156                         {
 157                                 if (surface->lightmapinfo && surface->lightmapinfo->stainsamples)
 158                                 {
 159                                         ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
 160                                         tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
 161                                         memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
 162                                         mod->brushq1.lightmapupdateflags[surfacenum] = true;
 163                                 }
 164                         }
 165                 }
 166         }
 167 }
 168
 169 /*
 170 ===============
 171 Mod_Init
 172 ===============
 173 */
 174 static void Mod_Print_f(cmd_state_t *cmd);
 175 static void Mod_Precache_f(cmd_state_t *cmd);
 176 static void Mod_Decompile_f(cmd_state_t *cmd);
 177 static void Mod_GenerateLightmaps_f(cmd_state_t *cmd);
 178 void Mod_Init (void)
 179 {
 180         mod_mempool = Mem_AllocPool("modelinfo", 0, NULL);
 181         Mem_ExpandableArray_NewArray(&models, mod_mempool, sizeof(model_t), 16);
 182
 183         Mod_BrushInit();
 184         Mod_AliasInit();
 185         Mod_SpriteInit();
 186
 187         Cvar_RegisterVariable(&r_mipskins);
 188         Cvar_RegisterVariable(&r_mipnormalmaps);
 189         Cvar_RegisterVariable(&mod_generatelightmaps_unitspersample);
 190         Cvar_RegisterVariable(&mod_generatelightmaps_borderpixels);
 191         Cvar_RegisterVariable(&mod_generatelightmaps_texturesize);
 192
 193         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapsamples);
 194         Cvar_RegisterVariable(&mod_generatelightmaps_vertexsamples);
 195         Cvar_RegisterVariable(&mod_generatelightmaps_gridsamples);
 196         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapradius);
 197         Cvar_RegisterVariable(&mod_generatelightmaps_vertexradius);
 198         Cvar_RegisterVariable(&mod_generatelightmaps_gridradius);
 199
 200         Cmd_AddCommand(CF_CLIENT, "modellist", Mod_Print_f, "prints a list of loaded models");
 201         Cmd_AddCommand(CF_CLIENT, "modelprecache", Mod_Precache_f, "load a model");
 202         Cmd_AddCommand(CF_CLIENT, "modeldecompile", Mod_Decompile_f, "exports a model in several formats for editing purposes");
 203         Cmd_AddCommand(CF_CLIENT, "mod_generatelightmaps", Mod_GenerateLightmaps_f, "rebuilds lighting on current worldmodel");
 204 }
 205
 206 void Mod_RenderInit(void)
 207 {
 208         R_RegisterModule("Models", mod_start, mod_shutdown, mod_newmap, NULL, NULL);
 209 }
 210
 211 void Mod_UnloadModel (model_t *mod)
 212 {
 213         char name[MAX_QPATH];
 214         qbool used;
 215         model_t *parentmodel;
 216
 217         if (developer_loading.integer)
 218                 Con_Printf("unloading model %s\n", mod->name);
 219
 220         dp_strlcpy(name, mod->name, sizeof(name));
 221         parentmodel = mod->brush.parentmodel;
 222         used = mod->used;
 223         if (mod->mempool)
 224         {
 225                 if (mod->surfmesh.data_element3i_indexbuffer && !mod->surfmesh.data_element3i_indexbuffer->isdynamic)
 226                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3i_indexbuffer);
 227                 mod->surfmesh.data_element3i_indexbuffer = NULL;
 228                 if (mod->surfmesh.data_element3s_indexbuffer && !mod->surfmesh.data_element3s_indexbuffer->isdynamic)
 229                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3s_indexbuffer);
 230                 mod->surfmesh.data_element3s_indexbuffer = NULL;
 231                 if (mod->surfmesh.data_vertex3f_vertexbuffer && !mod->surfmesh.data_vertex3f_vertexbuffer->isdynamic)
 232                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_vertex3f_vertexbuffer);
 233                 mod->surfmesh.data_vertex3f_vertexbuffer = NULL;
 234                 mod->surfmesh.data_svector3f_vertexbuffer = NULL;
 235                 mod->surfmesh.data_tvector3f_vertexbuffer = NULL;
 236                 mod->surfmesh.data_normal3f_vertexbuffer = NULL;
 237                 mod->surfmesh.data_texcoordtexture2f_vertexbuffer = NULL;
 238                 mod->surfmesh.data_texcoordlightmap2f_vertexbuffer = NULL;
 239                 mod->surfmesh.data_lightmapcolor4f_vertexbuffer = NULL;
 240                 mod->surfmesh.data_skeletalindex4ub_vertexbuffer = NULL;
 241                 mod->surfmesh.data_skeletalweight4ub_vertexbuffer = NULL;
 242         }
 243         // free textures/memory attached to the model
 244         R_FreeTexturePool(&mod->texturepool);
 245         Mem_FreePool(&mod->mempool);
 246         // clear the struct to make it available
 247         memset(mod, 0, sizeof(model_t));
 248         // restore the fields we want to preserve
 249         dp_strlcpy(mod->name, name, sizeof(mod->name));
 250         mod->brush.parentmodel = parentmodel;
 251         mod->used = used;
 252         mod->loaded = false;
 253 }
 254
 255 static void R_Model_Null_Draw(entity_render_t *ent)
 256 {
 257         return;
 258 }
 259
 260
 261 typedef void (*mod_framegroupify_parsegroups_t) (unsigned int i, int start, int len, float fps, qbool loop, const char *name, void *pass);
 262
 263 static int Mod_FrameGroupify_ParseGroups(const char *buf, mod_framegroupify_parsegroups_t cb, void *pass)
 264 {
 265         const char *bufptr;
 266         int start, len;
 267         float fps;
 268         unsigned int i;
 269         qbool loop;
 270         char name[64];
 271
 272         bufptr = buf;
 273         i = 0;
 274         while(bufptr)
 275         {
 276                 // an anim scene!
 277
 278                 // REQUIRED: fetch start
 279                 COM_ParseToken_Simple(&bufptr, true, false, true);
 280                 if (!bufptr)
 281                         break; // end of file
 282                 if (!strcmp(com_token, "\n"))
 283                         continue; // empty line
 284                 start = atoi(com_token);
 285
 286                 // REQUIRED: fetch length
 287                 COM_ParseToken_Simple(&bufptr, true, false, true);
 288                 if (!bufptr || !strcmp(com_token, "\n"))
 289                 {
 290                         Con_Printf("framegroups file: missing number of frames\n");
 291                         continue;
 292                 }
 293                 len = atoi(com_token);
 294
 295                 // OPTIONAL args start
 296                 COM_ParseToken_Simple(&bufptr, true, false, true);
 297
 298                 // OPTIONAL: fetch fps
 299                 fps = 20;
 300                 if (bufptr && strcmp(com_token, "\n"))
 301                 {
 302                         fps = atof(com_token);
 303                         COM_ParseToken_Simple(&bufptr, true, false, true);
 304                 }
 305
 306                 // OPTIONAL: fetch loopflag
 307                 loop = true;
 308                 if (bufptr && strcmp(com_token, "\n"))
 309                 {
 310                         loop = (atoi(com_token) != 0);
 311                         COM_ParseToken_Simple(&bufptr, true, false, true);
 312                 }
 313
 314                 // OPTIONAL: fetch name
 315                 name[0] = 0;
 316                 if (bufptr && strcmp(com_token, "\n"))
 317                 {
 318                         dp_strlcpy(name, com_token, sizeof(name));
 319                         COM_ParseToken_Simple(&bufptr, true, false, true);
 320                 }
 321
 322                 // OPTIONAL: remaining unsupported tokens (eat them)
 323                 while (bufptr && strcmp(com_token, "\n"))
 324                         COM_ParseToken_Simple(&bufptr, true, false, true);
 325
 326                 //Con_Printf("data: %d %d %d %f %d (%s)\n", i, start, len, fps, loop, name);
 327
 328                 if(cb)
 329                         cb(i, start, len, fps, loop, (name[0] ? name : NULL), pass);
 330                 ++i;
 331         }
 332
 333         return i;
 334 }
 335
 336 static void Mod_FrameGroupify_ParseGroups_Store (unsigned int i, int start, int len, float fps, qbool loop, const char *name, void *pass)
 337 {
 338         model_t *mod = (model_t *) pass;
 339         animscene_t *anim = &mod->animscenes[i];
 340         if(name)
 341                 dp_strlcpy(anim->name, name, sizeof(anim[i].name));
 342         else
 343                 dpsnprintf(anim->name, sizeof(anim[i].name), "groupified_%d_anim", i);
 344         anim->firstframe = bound(0, start, mod->num_poses - 1);
 345         anim->framecount = bound(1, len, mod->num_poses - anim->firstframe);
 346         anim->framerate = max(1, fps);
 347         anim->loop = !!loop;
 348         //Con_Printf("frame group %d is %d %d %f %d\n", i, start, len, fps, loop);
 349 }
 350
 351 static void Mod_FrameGroupify(model_t *mod, const char *buf)
 352 {
 353         unsigned int cnt;
 354
 355         // 0. count
 356         cnt = Mod_FrameGroupify_ParseGroups(buf, NULL, NULL);
 357         if(!cnt)
 358         {
 359                 Con_Printf("no scene found in framegroups file, aborting\n");
 360                 return;
 361         }
 362         mod->numframes = cnt;
 363
 364         // 1. reallocate
 365         // (we do not free the previous animscenes, but model unloading will free the pool owning them, so it's okay)
 366         mod->animscenes = (animscene_t *) Mem_Alloc(mod->mempool, sizeof(animscene_t) * mod->numframes);
 367
 368         // 2. parse
 369         Mod_FrameGroupify_ParseGroups(buf, Mod_FrameGroupify_ParseGroups_Store, mod);
 370 }
 371
 372 static void Mod_FindPotentialDeforms(model_t *mod)
 373 {
 374         int i, j;
 375         texture_t *texture;
 376         mod->wantnormals = false;
 377         mod->wanttangents = false;
 378         for (i = 0;i < mod->num_textures;i++)
 379         {
 380                 texture = mod->data_textures + i;
 381                 if (texture->materialshaderpass && texture->materialshaderpass->tcgen.tcgen == Q3TCGEN_ENVIRONMENT)
 382                         mod->wantnormals = true;
 383                 if (texture->materialshaderpass && texture->materialshaderpass->tcgen.tcgen == Q3TCGEN_ENVIRONMENT)
 384                         mod->wantnormals = true;
 385                 for (j = 0;j < Q3MAXDEFORMS;j++)
 386                 {
 387                         if (texture->deforms[j].deform == Q3DEFORM_AUTOSPRITE)
 388                         {
 389                                 mod->wanttangents = true;
 390                                 mod->wantnormals = true;
 391                                 break;
 392                         }
 393                         if (texture->deforms[j].deform != Q3DEFORM_NONE)
 394                                 mod->wantnormals = true;
 395                 }
 396         }
 397 }
 398
 399 /*
 400 ==================
 401 Mod_LoadModel
 402
 403 Loads a model
 404 ==================
 405 */
 406 model_t *Mod_LoadModel(model_t *mod, qbool crash, qbool checkdisk)
 407 {
 408         unsigned int crc;
 409         void *buf;
 410         fs_offset_t filesize = 0;
 411         char vabuf[1024];
 412
 413         mod->used = true;
 414
 415         if (mod->name[0] == '*') // submodel
 416                 return mod;
 417
 418         if (!strcmp(mod->name, "null"))
 419         {
 420                 if(mod->loaded)
 421                         return mod;
 422
 423                 if (mod->loaded || mod->mempool)
 424                         Mod_UnloadModel(mod);
 425
 426                 if (developer_loading.integer)
 427                         Con_Printf("loading model %s\n", mod->name);
 428
 429                 mod->used = true;
 430                 mod->crc = (unsigned int)-1;
 431                 mod->loaded = false;
 432
 433                 VectorClear(mod->normalmins);
 434                 VectorClear(mod->normalmaxs);
 435                 VectorClear(mod->yawmins);
 436                 VectorClear(mod->yawmaxs);
 437                 VectorClear(mod->rotatedmins);
 438                 VectorClear(mod->rotatedmaxs);
 439
 440                 mod->modeldatatypestring = "null";
 441                 mod->type = mod_null;
 442                 mod->Draw = R_Model_Null_Draw;
 443                 mod->numframes = 2;
 444                 mod->numskins = 1;
 445
 446                 // no fatal errors occurred, so this model is ready to use.
 447                 mod->loaded = true;
 448
 449                 return mod;
 450         }
 451
 452         crc = 0;
 453         buf = NULL;
 454
 455         // even if the model is loaded it still may need reloading...
 456
 457         // if it is not loaded or checkdisk is true we need to calculate the crc
 458         if (!mod->loaded || checkdisk)
 459         {
 460                 if (checkdisk && mod->loaded)
 461                         Con_DPrintf("checking model %s\n", mod->name);
 462                 buf = FS_LoadFile (mod->name, tempmempool, false, &filesize);
 463                 if (buf)
 464                 {
 465                         crc = CRC_Block((unsigned char *)buf, filesize);
 466                         // we need to reload the model if the crc does not match
 467                         if (mod->crc != crc)
 468                                 mod->loaded = false;
 469                 }
 470         }
 471
 472         // if the model is already loaded and checks passed, just return
 473         if (mod->loaded)
 474         {
 475                 if (buf)
 476                         Mem_Free(buf);
 477                 return mod;
 478         }
 479
 480         if (developer_loading.integer)
 481                 Con_Printf("loading model %s\n", mod->name);
 482
 483         SCR_PushLoadingScreen(mod->name, 1);
 484
 485         // LadyHavoc: unload the existing model in this slot (if there is one)
 486         if (mod->loaded || mod->mempool)
 487                 Mod_UnloadModel(mod);
 488
 489         // load the model
 490         mod->used = true;
 491         mod->crc = crc;
 492         // errors can prevent the corresponding mod->loaded = true;
 493         mod->loaded = false;
 494
 495         // default lightmap scale
 496         mod->lightmapscale = 1;
 497
 498         // default model radius and bounding box (mainly for missing models)
 499         mod->radius = 16;
 500         VectorSet(mod->normalmins, -mod->radius, -mod->radius, -mod->radius);
 501         VectorSet(mod->normalmaxs, mod->radius, mod->radius, mod->radius);
 502         VectorSet(mod->yawmins, -mod->radius, -mod->radius, -mod->radius);
 503         VectorSet(mod->yawmaxs, mod->radius, mod->radius, mod->radius);
 504         VectorSet(mod->rotatedmins, -mod->radius, -mod->radius, -mod->radius);
 505         VectorSet(mod->rotatedmaxs, mod->radius, mod->radius, mod->radius);
 506
 507         if (!q3shaders_mem)
 508         {
 509                 // load q3 shaders for the first time, or after a level change
 510                 Mod_LoadQ3Shaders();
 511         }
 512
 513         if (buf)
 514         {
 515                 int i;
 516                 const char *ext = FS_FileExtension(mod->name);
 517                 char *bufend = (char *)buf + filesize;
 518                 // all models use memory, so allocate a memory pool
 519                 mod->mempool = Mem_AllocPool(mod->name, 0, NULL);
 520
 521                 // We need to have a reference to the base model in case we're parsing submodels
 522                 loadmodel = mod;
 523
 524                 // Call the appropriate loader. Try matching magic bytes.
 525                 for (i = 0; loader[i].Load; i++)
 526                 {
 527                         // Headerless formats can just load based on extension. Otherwise match the magic string.
 528                         if((loader[i].extension && !strcasecmp(ext, loader[i].extension) && !loader[i].header) ||
 529                            (loader[i].header && !memcmp(buf, loader[i].header, loader[i].headersize)))
 530                         {
 531                                 // Matched. Load it.
 532                                 loader[i].Load(mod, buf, bufend);
 533                                 Mem_Free(buf);
 534
 535                                 Mod_FindPotentialDeforms(mod);
 536
 537                                 buf = FS_LoadFile(va(vabuf, sizeof(vabuf), "%s.framegroups", mod->name), tempmempool, false, &filesize);
 538                                 if(buf)
 539                                 {
 540                                         Mod_FrameGroupify(mod, (const char *)buf);
 541                                         Mem_Free(buf);
 542                                 }
 543
 544                                 Mod_SetDrawSkyAndWater(mod);
 545                                 Mod_BuildVBOs();
 546                                 break;
 547                         }
 548                 }
 549                 if(!loader[i].Load)
 550                         Con_Printf(CON_ERROR "Mod_LoadModel: model \"%s\" is of unknown/unsupported type\n", mod->name);
 551         }
 552         else if (crash)
 553                 // LadyHavoc: Sys_Abort was *ANNOYING*
 554                 Con_Printf (CON_ERROR "Mod_LoadModel: %s not found\n", mod->name);
 555
 556         // no fatal errors occurred, so this model is ready to use.
 557         mod->loaded = true;
 558
 559         SCR_PopLoadingScreen(false);
 560
 561         return mod;
 562 }
 563
 564 void Mod_ClearUsed(void)
 565 {
 566         int i;
 567         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 568         model_t *mod;
 569         for (i = 0;i < nummodels;i++)
 570                 if ((mod = (model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0])
 571                         mod->used = false;
 572 }
 573
 574 void Mod_PurgeUnused(void)
 575 {
 576         int i;
 577         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 578         model_t *mod;
 579         for (i = 0;i < nummodels;i++)
 580         {
 581                 if ((mod = (model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !mod->used)
 582                 {
 583                         Mod_UnloadModel(mod);
 584                         Mem_ExpandableArray_FreeRecord(&models, mod);
 585                 }
 586         }
 587 }
 588
 589 /*
 590 ==================
 591 Mod_FindName
 592
 593 ==================
 594 */
 595 model_t *Mod_FindName(const char *name, const char *parentname)
 596 {
 597         int i;
 598         int nummodels;
 599         model_t *mod;
 600
 601         if (!parentname)
 602                 parentname = "";
 603
 604         nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 605
 606         if (!name[0])
 607                 Host_Error ("Mod_ForName: empty name");
 608
 609         // search the currently loaded models
 610         for (i = 0;i < nummodels;i++)
 611         {
 612                 if ((mod = (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))))
 613                 {
 614                         mod->used = true;
 615                         return mod;
 616                 }
 617         }
 618
 619         // no match found, create a new one
 620         mod = (model_t *) Mem_ExpandableArray_AllocRecord(&models);
 621         dp_strlcpy(mod->name, name, sizeof(mod->name));
 622         if (parentname[0])
 623                 mod->brush.parentmodel = Mod_FindName(parentname, NULL);
 624         else
 625                 mod->brush.parentmodel = NULL;
 626         mod->loaded = false;
 627         mod->used = true;
 628         return mod;
 629 }
 630
 631 extern qbool vid_opened;
 632
 633 /*
 634 ==================
 635 Mod_ForName
 636
 637 Loads in a model for the given name
 638 ==================
 639 */
 640 model_t *Mod_ForName(const char *name, qbool crash, qbool checkdisk, const char *parentname)
 641 {
 642         model_t *model;
 643
 644         // FIXME: So we don't crash if a server is started early.
 645         if(!vid_opened)
 646                 CL_StartVideo();
 647
 648         model = Mod_FindName(name, parentname);
 649         if (!model->loaded || checkdisk)
 650                 Mod_LoadModel(model, crash, checkdisk);
 651         return model;
 652 }
 653
 654 /*
 655 ==================
 656 Mod_Reload
 657
 658 Reloads all models if they have changed
 659 ==================
 660 */
 661 void Mod_Reload(void)
 662 {
 663         int i, count;
 664         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 665         model_t *mod;
 666
 667         SCR_PushLoadingScreen("Reloading models", 1.0);
 668         count = 0;
 669         for (i = 0;i < nummodels;i++)
 670                 if ((mod = (model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 671                         ++count;
 672         for (i = 0;i < nummodels;i++)
 673                 if ((mod = (model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 674                 {
 675                         SCR_PushLoadingScreen(mod->name, 1.0 / count);
 676                         Mod_LoadModel(mod, true, true);
 677                         SCR_PopLoadingScreen(false);
 678                 }
 679         SCR_PopLoadingScreen(false);
 680 }
 681
 682 unsigned char *mod_base;
 683
 684
 685 //=============================================================================
 686
 687 /*
 688 ================
 689 Mod_Print
 690 ================
 691 */
 692 static void Mod_Print_f(cmd_state_t *cmd)
 693 {
 694         int i;
 695         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 696         model_t *mod;
 697
 698         Con_Print("Loaded models:\n");
 699         for (i = 0;i < nummodels;i++)
 700         {
 701                 if ((mod = (model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
 702                 {
 703                         if (mod->brush.numsubmodels)
 704                                 Con_Printf("%4iK %s (%i submodels)\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name, mod->brush.numsubmodels);
 705                         else
 706                                 Con_Printf("%4iK %s\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name);
 707                 }
 708         }
 709 }
 710
 711 /*
 712 ================
 713 Mod_Precache
 714 ================
 715 */
 716 static void Mod_Precache_f(cmd_state_t *cmd)
 717 {
 718         if (Cmd_Argc(cmd) == 2)
 719                 Mod_ForName(Cmd_Argv(cmd, 1), false, true, Cmd_Argv(cmd, 1)[0] == '*' ? cl.model_name[1] : NULL);
 720         else
 721                 Con_Print("usage: modelprecache <filename>\n");
 722 }
 723
 724 int Mod_BuildVertexRemapTableFromElements(int numelements, const int *elements, int numvertices, int *remapvertices)
 725 {
 726         int i, count;
 727         unsigned char *used;
 728         used = (unsigned char *)Mem_Alloc(tempmempool, numvertices);
 729         memset(used, 0, numvertices);
 730         for (i = 0;i < numelements;i++)
 731                 used[elements[i]] = 1;
 732         for (i = 0, count = 0;i < numvertices;i++)
 733                 remapvertices[i] = used[i] ? count++ : -1;
 734         Mem_Free(used);
 735         return count;
 736 }
 737
 738 qbool Mod_ValidateElements(int *element3i, unsigned short *element3s, int numtriangles, int firstvertex, int numvertices, const char *filename, int fileline)
 739 {
 740         int first = firstvertex, last = first + numvertices - 1, numelements = numtriangles * 3;
 741         int i;
 742         int invalidintcount = 0, invalidintexample = 0;
 743         int invalidshortcount = 0, invalidshortexample = 0;
 744         int invalidmismatchcount = 0, invalidmismatchexample = 0;
 745         if (element3i)
 746         {
 747                 for (i = 0; i < numelements; i++)
 748                 {
 749                         if (element3i[i] < first || element3i[i] > last)
 750                         {
 751                                 invalidintcount++;
 752                                 invalidintexample = i;
 753                         }
 754                 }
 755         }
 756         if (element3s)
 757         {
 758                 for (i = 0; i < numelements; i++)
 759                 {
 760                         if (element3s[i] < first || element3s[i] > last)
 761                         {
 762                                 invalidintcount++;
 763                                 invalidintexample = i;
 764                         }
 765                 }
 766         }
 767         if (element3i && element3s)
 768         {
 769                 for (i = 0; i < numelements; i++)
 770                 {
 771                         if (element3s[i] != element3i[i])
 772                         {
 773                                 invalidmismatchcount++;
 774                                 invalidmismatchexample = i;
 775                         }
 776                 }
 777         }
 778         if (invalidintcount || invalidshortcount || invalidmismatchcount)
 779         {
 780                 Con_Printf("Mod_ValidateElements(%i, %i, %i, %p, %p) called at %s:%d", numelements, first, last, (void *)element3i, (void *)element3s, filename, fileline);
 781                 Con_Printf(", %i elements are invalid in element3i (example: element3i[%i] == %i)", invalidintcount, invalidintexample, element3i ? element3i[invalidintexample] : 0);
 782                 Con_Printf(", %i elements are invalid in element3s (example: element3s[%i] == %i)", invalidshortcount, invalidshortexample, element3s ? element3s[invalidshortexample] : 0);
 783                 Con_Printf(", %i elements mismatch between element3i and element3s (example: element3s[%i] is %i and element3i[%i] is %i)", invalidmismatchcount, invalidmismatchexample, element3s ? element3s[invalidmismatchexample] : 0, invalidmismatchexample, element3i ? element3i[invalidmismatchexample] : 0);
 784                 Con_Print(".  Please debug the engine code - these elements have been modified to not crash, but nothing more.\n");
 785
 786                 // edit the elements to make them safer, as the driver will crash otherwise
 787                 if (element3i)
 788                         for (i = 0; i < numelements; i++)
 789                                 if (element3i[i] < first || element3i[i] > last)
 790                                         element3i[i] = first;
 791                 if (element3s)
 792                         for (i = 0; i < numelements; i++)
 793                                 if (element3s[i] < first || element3s[i] > last)
 794                                         element3s[i] = first;
 795                 if (element3i && element3s)
 796                         for (i = 0; i < numelements; i++)
 797                                 if (element3s[i] != element3i[i])
 798                                         element3s[i] = element3i[i];
 799
 800                 return false;
 801         }
 802         return true;
 803 }
 804
 805 // warning: this is an expensive function!
 806 void Mod_BuildNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const int *elements, float *normal3f, qbool areaweighting)
 807 {
 808         int i, j;
 809         const int *element;
 810         float *vectorNormal;
 811         float areaNormal[3];
 812         // clear the vectors
 813         memset(normal3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 814         // process each vertex of each triangle and accumulate the results
 815         // use area-averaging, to make triangles with a big area have a bigger
 816         // weighting on the vertex normal than triangles with a small area
 817         // to do so, just add the 'normals' together (the bigger the area
 818         // the greater the length of the normal is
 819         element = elements;
 820         for (i = 0; i < numtriangles; i++, element += 3)
 821         {
 822                 TriangleNormal(
 823                         vertex3f + element[0] * 3,
 824                         vertex3f + element[1] * 3,
 825                         vertex3f + element[2] * 3,
 826                         areaNormal
 827                         );
 828
 829                 if (!areaweighting)
 830                         VectorNormalize(areaNormal);
 831
 832                 for (j = 0;j < 3;j++)
 833                 {
 834                         vectorNormal = normal3f + element[j] * 3;
 835                         vectorNormal[0] += areaNormal[0];
 836                         vectorNormal[1] += areaNormal[1];
 837                         vectorNormal[2] += areaNormal[2];
 838                 }
 839         }
 840         // and just normalize the accumulated vertex normal in the end
 841         vectorNormal = normal3f + 3 * firstvertex;
 842         for (i = 0; i < numvertices; i++, vectorNormal += 3)
 843                 VectorNormalize(vectorNormal);
 844 }
 845
 846 #if 0
 847 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)
 848 {
 849         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 850         // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 851         // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 852
 853         // 6 multiply, 9 subtract
 854         VectorSubtract(v1, v0, v10);
 855         VectorSubtract(v2, v0, v20);
 856         normal3f[0] = v20[1] * v10[2] - v20[2] * v10[1];
 857         normal3f[1] = v20[2] * v10[0] - v20[0] * v10[2];
 858         normal3f[2] = v20[0] * v10[1] - v20[1] * v10[0];
 859         // 12 multiply, 10 subtract
 860         tc10[1] = tc1[1] - tc0[1];
 861         tc20[1] = tc2[1] - tc0[1];
 862         svector3f[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 863         svector3f[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 864         svector3f[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 865         tc10[0] = tc1[0] - tc0[0];
 866         tc20[0] = tc2[0] - tc0[0];
 867         tvector3f[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 868         tvector3f[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 869         tvector3f[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 870         // 12 multiply, 4 add, 6 subtract
 871         f = DotProduct(svector3f, normal3f);
 872         svector3f[0] -= f * normal3f[0];
 873         svector3f[1] -= f * normal3f[1];
 874         svector3f[2] -= f * normal3f[2];
 875         f = DotProduct(tvector3f, normal3f);
 876         tvector3f[0] -= f * normal3f[0];
 877         tvector3f[1] -= f * normal3f[1];
 878         tvector3f[2] -= f * normal3f[2];
 879         // if texture is mapped the wrong way (counterclockwise), the tangents
 880         // have to be flipped, this is detected by calculating a normal from the
 881         // two tangents, and seeing if it is opposite the surface normal
 882         // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 883         CrossProduct(tvector3f, svector3f, tangentcross);
 884         if (DotProduct(tangentcross, normal3f) < 0)
 885         {
 886                 VectorNegate(svector3f, svector3f);
 887                 VectorNegate(tvector3f, tvector3f);
 888         }
 889 }
 890 #endif
 891
 892 // warning: this is a very expensive function!
 893 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, qbool areaweighting)
 894 {
 895         int i, tnum;
 896         float sdir[3], tdir[3], normal[3], *svec, *tvec;
 897         const float *v0, *v1, *v2, *tc0, *tc1, *tc2, *n;
 898         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 899         const int *e;
 900         // clear the vectors
 901         memset(svector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 902         memset(tvector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 903         // process each vertex of each triangle and accumulate the results
 904         for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
 905         {
 906                 v0 = vertex3f + e[0] * 3;
 907                 v1 = vertex3f + e[1] * 3;
 908                 v2 = vertex3f + e[2] * 3;
 909                 tc0 = texcoord2f + e[0] * 2;
 910                 tc1 = texcoord2f + e[1] * 2;
 911                 tc2 = texcoord2f + e[2] * 2;
 912
 913                 // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 914                 // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 915
 916                 // calculate the edge directions and surface normal
 917                 // 6 multiply, 9 subtract
 918                 VectorSubtract(v1, v0, v10);
 919                 VectorSubtract(v2, v0, v20);
 920                 normal[0] = v20[1] * v10[2] - v20[2] * v10[1];
 921                 normal[1] = v20[2] * v10[0] - v20[0] * v10[2];
 922                 normal[2] = v20[0] * v10[1] - v20[1] * v10[0];
 923
 924                 // calculate the tangents
 925                 // 12 multiply, 10 subtract
 926                 tc10[1] = tc1[1] - tc0[1];
 927                 tc20[1] = tc2[1] - tc0[1];
 928                 sdir[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 929                 sdir[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 930                 sdir[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 931                 tc10[0] = tc1[0] - tc0[0];
 932                 tc20[0] = tc2[0] - tc0[0];
 933                 tdir[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 934                 tdir[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 935                 tdir[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 936
 937                 // if texture is mapped the wrong way (counterclockwise), the tangents
 938                 // have to be flipped, this is detected by calculating a normal from the
 939                 // two tangents, and seeing if it is opposite the surface normal
 940                 // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 941                 CrossProduct(tdir, sdir, tangentcross);
 942                 if (DotProduct(tangentcross, normal) < 0)
 943                 {
 944                         VectorNegate(sdir, sdir);
 945                         VectorNegate(tdir, tdir);
 946                 }
 947
 948                 if (!areaweighting)
 949                 {
 950                         VectorNormalize(sdir);
 951                         VectorNormalize(tdir);
 952                 }
 953                 for (i = 0;i < 3;i++)
 954                 {
 955                         VectorAdd(svector3f + e[i]*3, sdir, svector3f + e[i]*3);
 956                         VectorAdd(tvector3f + e[i]*3, tdir, tvector3f + e[i]*3);
 957                 }
 958         }
 959         // make the tangents completely perpendicular to the surface normal, and
 960         // then normalize them
 961         // 16 assignments, 2 divide, 2 sqrt, 2 negates, 14 adds, 24 multiplies
 962         for (i = 0, svec = svector3f + 3 * firstvertex, tvec = tvector3f + 3 * firstvertex, n = normal3f + 3 * firstvertex;i < numvertices;i++, svec += 3, tvec += 3, n += 3)
 963         {
 964                 f = -DotProduct(svec, n);
 965                 VectorMA(svec, f, n, svec);
 966                 VectorNormalize(svec);
 967                 f = -DotProduct(tvec, n);
 968                 VectorMA(tvec, f, n, tvec);
 969                 VectorNormalize(tvec);
 970         }
 971 }
 972
 973 void Mod_AllocSurfMesh(mempool_t *mempool, int numvertices, int numtriangles, qbool lightmapoffsets, qbool vertexcolors)
 974 {
 975         unsigned char *data;
 976         data = (unsigned char *)Mem_Alloc(mempool, numvertices * (3 + 3 + 3 + 3 + 2 + 2 + (vertexcolors ? 4 : 0)) * sizeof(float) + numvertices * (lightmapoffsets ? 1 : 0) * sizeof(int) + numtriangles * sizeof(int[3]) + (numvertices <= 65536 ? numtriangles * sizeof(unsigned short[3]) : 0));
 977         loadmodel->surfmesh.num_vertices = numvertices;
 978         loadmodel->surfmesh.num_triangles = numtriangles;
 979         if (loadmodel->surfmesh.num_vertices)
 980         {
 981                 loadmodel->surfmesh.data_vertex3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 982                 loadmodel->surfmesh.data_svector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 983                 loadmodel->surfmesh.data_tvector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 984                 loadmodel->surfmesh.data_normal3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 985                 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 986                 loadmodel->surfmesh.data_texcoordlightmap2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 987                 if (vertexcolors)
 988                         loadmodel->surfmesh.data_lightmapcolor4f = (float *)data, data += sizeof(float[4]) * loadmodel->surfmesh.num_vertices;
 989                 if (lightmapoffsets)
 990                         loadmodel->surfmesh.data_lightmapoffsets = (int *)data, data += sizeof(int) * loadmodel->surfmesh.num_vertices;
 991         }
 992         if (loadmodel->surfmesh.num_triangles)
 993         {
 994                 loadmodel->surfmesh.data_element3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
 995                 if (loadmodel->surfmesh.num_vertices <= 65536)
 996                         loadmodel->surfmesh.data_element3s = (unsigned short *)data, data += sizeof(unsigned short[3]) * loadmodel->surfmesh.num_triangles;
 997         }
 998 }
 999
1000 shadowmesh_t *Mod_ShadowMesh_Alloc(mempool_t *mempool, int maxverts, int maxtriangles)
1001 {
1002         shadowmesh_t *newmesh;
1003         newmesh = (shadowmesh_t *)Mem_Alloc(mempool, sizeof(shadowmesh_t));
1004         newmesh->mempool = mempool;
1005         newmesh->maxverts = maxverts;
1006         newmesh->maxtriangles = maxtriangles;
1007         newmesh->numverts = 0;
1008         newmesh->numtriangles = 0;
1009         memset(newmesh->sideoffsets, 0, sizeof(newmesh->sideoffsets));
1010         memset(newmesh->sidetotals, 0, sizeof(newmesh->sidetotals));
1011
1012         newmesh->vertex3f = (float *)Mem_Alloc(mempool, maxverts * sizeof(float[3]));
1013         newmesh->element3i = (int *)Mem_Alloc(mempool, maxtriangles * sizeof(int[3]));
1014         newmesh->vertexhashtable = (shadowmeshvertexhash_t **)Mem_Alloc(mempool, SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *));
1015         newmesh->vertexhashentries = (shadowmeshvertexhash_t *)Mem_Alloc(mempool, maxverts * sizeof(shadowmeshvertexhash_t));
1016         return newmesh;
1017 }
1018
1019 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, const float *vertex3f)
1020 {
1021         int hashindex, vnum;
1022         shadowmeshvertexhash_t *hash;
1023         // this uses prime numbers intentionally
1024         hashindex = (unsigned int) (vertex3f[0] * 2003 + vertex3f[1] * 4001 + vertex3f[2] * 7919) % SHADOWMESHVERTEXHASH;
1025         for (hash = mesh->vertexhashtable[hashindex];hash;hash = hash->next)
1026         {
1027                 vnum = (hash - mesh->vertexhashentries);
1028                 if (mesh->vertex3f[vnum * 3 + 0] == vertex3f[0] && mesh->vertex3f[vnum * 3 + 1] == vertex3f[1] && mesh->vertex3f[vnum * 3 + 2] == vertex3f[2])
1029                         return hash - mesh->vertexhashentries;
1030         }
1031         vnum = mesh->numverts++;
1032         hash = mesh->vertexhashentries + vnum;
1033         hash->next = mesh->vertexhashtable[hashindex];
1034         mesh->vertexhashtable[hashindex] = hash;
1035         mesh->vertex3f[vnum * 3 + 0] = vertex3f[0];
1036         mesh->vertex3f[vnum * 3 + 1] = vertex3f[1];
1037         mesh->vertex3f[vnum * 3 + 2] = vertex3f[2];
1038         return vnum;
1039 }
1040
1041 void Mod_ShadowMesh_AddMesh(shadowmesh_t *mesh, const float *vertex3f, int numtris, const int *element3i)
1042 {
1043         int i;
1044
1045         for (i = 0;i < numtris;i++)
1046         {
1047                 if ((mesh->numtriangles * 3 + 2) * sizeof(int) + 1 >= ((memheader_t *)((unsigned char *)mesh->element3i - sizeof(memheader_t)))->size)
1048                 {
1049                         // FIXME: we didn't allocate enough space for all the tris, see R_Mod_CompileShadowMap
1050                         Con_Print(CON_WARN "Mod_ShadowMesh_AddMesh: insufficient memory allocated!\n");
1051                         return;
1052                 }
1053                 mesh->element3i[mesh->numtriangles * 3 + 0] = Mod_ShadowMesh_AddVertex(mesh, vertex3f + 3 * element3i[i * 3 + 0]);
1054                 mesh->element3i[mesh->numtriangles * 3 + 1] = Mod_ShadowMesh_AddVertex(mesh, vertex3f + 3 * element3i[i * 3 + 1]);
1055                 mesh->element3i[mesh->numtriangles * 3 + 2] = Mod_ShadowMesh_AddVertex(mesh, vertex3f + 3 * element3i[i * 3 + 2]);
1056                 mesh->numtriangles++;
1057         }
1058
1059         // the triangle calculation can take a while, so let's do a keepalive here
1060         CL_KeepaliveMessage(false);
1061 }
1062
1063 shadowmesh_t *Mod_ShadowMesh_Begin(mempool_t *mempool, int maxverts, int maxtriangles)
1064 {
1065         // the preparation before shadow mesh initialization can take a while, so let's do a keepalive here
1066         CL_KeepaliveMessage(false);
1067
1068         return Mod_ShadowMesh_Alloc(mempool, maxverts, maxtriangles);
1069 }
1070
1071 static void Mod_ShadowMesh_CreateVBOs(shadowmesh_t *mesh)
1072 {
1073         if (!mesh->numverts)
1074                 return;
1075
1076         // make sure we don't crash inside the driver if something went wrong, as it's annoying to debug
1077         Mod_ValidateElements(mesh->element3i, mesh->element3s, mesh->numtriangles, 0, mesh->numverts, __FILE__, __LINE__);
1078
1079         // upload short indices as a buffer
1080         if (mesh->element3s && !mesh->element3s_indexbuffer)
1081                 mesh->element3s_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3s, mesh->numtriangles * sizeof(short[3]), "shadowmesh", true, false, false, true);
1082
1083         // upload int indices as a buffer
1084         if (mesh->element3i && !mesh->element3i_indexbuffer && !mesh->element3s)
1085                 mesh->element3i_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3i, mesh->numtriangles * sizeof(int[3]), "shadowmesh", true, false, false, false);
1086
1087         // vertex buffer is several arrays and we put them in the same buffer
1088         //
1089         // is this wise?  the texcoordtexture2f array is used with dynamic
1090         // vertex/svector/tvector/normal when rendering animated models, on the
1091         // other hand animated models don't use a lot of vertices anyway...
1092         if (!mesh->vbo_vertexbuffer)
1093         {
1094                 mesh->vbooffset_vertex3f = 0;
1095                 mesh->vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mesh->vertex3f, mesh->numverts * sizeof(float[3]), "shadowmesh", false, false, false, false);
1096         }
1097 }
1098
1099 shadowmesh_t *Mod_ShadowMesh_Finish(shadowmesh_t *mesh, qbool createvbo)
1100 {
1101         if (mesh->numverts >= 3 && mesh->numtriangles >= 1)
1102         {
1103                 if (mesh->vertexhashentries)
1104                         Mem_Free(mesh->vertexhashentries);
1105                 mesh->vertexhashentries = NULL;
1106                 if (mesh->vertexhashtable)
1107                         Mem_Free(mesh->vertexhashtable);
1108                 mesh->vertexhashtable = NULL;
1109                 if (mesh->maxverts > mesh->numverts)
1110                 {
1111                         mesh->vertex3f = (float *)Mem_Realloc(mesh->mempool, mesh->vertex3f, mesh->numverts * sizeof(float[3]));
1112                         mesh->maxverts = mesh->numverts;
1113                 }
1114                 if (mesh->maxtriangles > mesh->numtriangles)
1115                 {
1116                         mesh->element3i = (int *)Mem_Realloc(mesh->mempool, mesh->element3i, mesh->numtriangles * sizeof(int[3]));
1117                         mesh->maxtriangles = mesh->numtriangles;
1118                 }
1119                 if (mesh->numverts <= 65536)
1120                 {
1121                         int i;
1122                         mesh->element3s = (unsigned short *)Mem_Alloc(mesh->mempool, mesh->numtriangles * sizeof(unsigned short[3]));
1123                         for (i = 0;i < mesh->numtriangles*3;i++)
1124                                 mesh->element3s[i] = mesh->element3i[i];
1125                 }
1126                 if (createvbo)
1127                         Mod_ShadowMesh_CreateVBOs(mesh);
1128         }
1129
1130         // this can take a while, so let's do a keepalive here
1131         CL_KeepaliveMessage(false);
1132
1133         return mesh;
1134 }
1135
1136 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *mesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius)
1137 {
1138         int i;
1139         vec3_t nmins, nmaxs, ncenter, temp;
1140         float nradius2, dist2, *v;
1141         VectorClear(nmins);
1142         VectorClear(nmaxs);
1143         // calculate bbox
1144         VectorCopy(mesh->vertex3f, nmins);
1145         VectorCopy(mesh->vertex3f, nmaxs);
1146         for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1147         {
1148                 if (nmins[0] > v[0]) { nmins[0] = v[0]; } if (nmaxs[0] < v[0]) { nmaxs[0] = v[0]; }
1149                 if (nmins[1] > v[1]) { nmins[1] = v[1]; } if (nmaxs[1] < v[1]) { nmaxs[1] = v[1]; }
1150                 if (nmins[2] > v[2]) { nmins[2] = v[2]; } if (nmaxs[2] < v[2]) { nmaxs[2] = v[2]; }
1151         }
1152         // calculate center and radius
1153         ncenter[0] = (nmins[0] + nmaxs[0]) * 0.5f;
1154         ncenter[1] = (nmins[1] + nmaxs[1]) * 0.5f;
1155         ncenter[2] = (nmins[2] + nmaxs[2]) * 0.5f;
1156         nradius2 = 0;
1157         for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1158         {
1159                 VectorSubtract(v, ncenter, temp);
1160                 dist2 = DotProduct(temp, temp);
1161                 if (nradius2 < dist2)
1162                         nradius2 = dist2;
1163         }
1164         // return data
1165         if (mins)
1166                 VectorCopy(nmins, mins);
1167         if (maxs)
1168                 VectorCopy(nmaxs, maxs);
1169         if (center)
1170                 VectorCopy(ncenter, center);
1171         if (radius)
1172                 *radius = sqrt(nradius2);
1173 }
1174
1175 void Mod_ShadowMesh_Free(shadowmesh_t *mesh)
1176 {
1177         if (mesh->element3i_indexbuffer)
1178                 R_Mesh_DestroyMeshBuffer(mesh->element3i_indexbuffer);
1179         if (mesh->element3s_indexbuffer)
1180                 R_Mesh_DestroyMeshBuffer(mesh->element3s_indexbuffer);
1181         if (mesh->vbo_vertexbuffer)
1182                 R_Mesh_DestroyMeshBuffer(mesh->vbo_vertexbuffer);
1183         if (mesh->vertex3f)
1184                 Mem_Free(mesh->vertex3f);
1185         if (mesh->element3i)
1186                 Mem_Free(mesh->element3i);
1187         if (mesh->element3s)
1188                 Mem_Free(mesh->element3s);
1189         if (mesh->vertexhashentries)
1190                 Mem_Free(mesh->vertexhashentries);
1191         if (mesh->vertexhashtable)
1192                 Mem_Free(mesh->vertexhashtable);
1193         Mem_Free(mesh);
1194 }
1195
1196 void Mod_CreateCollisionMesh(model_t *mod)
1197 {
1198         int k, numcollisionmeshtriangles;
1199         qbool usesinglecollisionmesh = false;
1200         const msurface_t *surface = NULL;
1201
1202         mempool_t *mempool = mod->mempool;
1203         if (!mempool && mod->brush.parentmodel)
1204                 mempool = mod->brush.parentmodel->mempool;
1205         // make a single combined collision mesh for physics engine use
1206         // TODO rewrite this to use the collision brushes as source, to fix issues with e.g. common/caulk which creates no drawsurface
1207         numcollisionmeshtriangles = 0;
1208         for (k = mod->submodelsurfaces_start;k < mod->submodelsurfaces_end;k++)
1209         {
1210                 surface = mod->data_surfaces + k;
1211                 if (!strcmp(surface->texture->name, "collision") || !strcmp(surface->texture->name, "collisionconvex")) // found collision mesh
1212                 {
1213                         usesinglecollisionmesh = true;
1214                         numcollisionmeshtriangles = surface->num_triangles;
1215                         break;
1216                 }
1217                 if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1218                         continue;
1219                 numcollisionmeshtriangles += surface->num_triangles;
1220         }
1221         mod->brush.collisionmesh = Mod_ShadowMesh_Begin(mempool, numcollisionmeshtriangles * 3, numcollisionmeshtriangles);
1222         if (usesinglecollisionmesh)
1223                 Mod_ShadowMesh_AddMesh(mod->brush.collisionmesh, mod->surfmesh.data_vertex3f, surface->num_triangles, (mod->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
1224         else
1225         {
1226                 for (k = mod->submodelsurfaces_start; k < mod->submodelsurfaces_end; k++)
1227                 {
1228                         surface = mod->data_surfaces + k;
1229                         if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1230                                 continue;
1231                         Mod_ShadowMesh_AddMesh(mod->brush.collisionmesh, mod->surfmesh.data_vertex3f, surface->num_triangles, (mod->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
1232                 }
1233         }
1234         mod->brush.collisionmesh = Mod_ShadowMesh_Finish(mod->brush.collisionmesh, false);
1235 }
1236
1237 #if 0
1238 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)
1239 {
1240         float v[3], tc[3];
1241         v[0] = ix;
1242         v[1] = iy;
1243         if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
1244                 v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
1245         else
1246                 v[2] = 0;
1247         Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
1248         Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
1249         texcoord2f[0] = tc[0];
1250         texcoord2f[1] = tc[1];
1251 }
1252
1253 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)
1254 {
1255         float vup[3], vdown[3], vleft[3], vright[3];
1256         float tcup[3], tcdown[3], tcleft[3], tcright[3];
1257         float sv[3], tv[3], nl[3];
1258         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
1259         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
1260         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
1261         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
1262         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
1263         Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
1264         Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
1265         VectorAdd(svector3f, sv, svector3f);
1266         VectorAdd(tvector3f, tv, tvector3f);
1267         VectorAdd(normal3f, nl, normal3f);
1268         Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
1269         VectorAdd(svector3f, sv, svector3f);
1270         VectorAdd(tvector3f, tv, tvector3f);
1271         VectorAdd(normal3f, nl, normal3f);
1272         Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
1273         VectorAdd(svector3f, sv, svector3f);
1274         VectorAdd(tvector3f, tv, tvector3f);
1275         VectorAdd(normal3f, nl, normal3f);
1276 }
1277
1278 static void Mod_ConstructTerrainPatchFromBGRA(const unsigned char *imagepixels, int imagewidth, int imageheight, int x1, int y1, int width, int height, int *element3i, float *vertex3f, float *svector3f, float *tvector3f, float *normal3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
1279 {
1280         int x, y, ix, iy, *e;
1281         e = element3i;
1282         for (y = 0;y < height;y++)
1283         {
1284                 for (x = 0;x < width;x++)
1285                 {
1286                         e[0] = (y + 1) * (width + 1) + (x + 0);
1287                         e[1] = (y + 0) * (width + 1) + (x + 0);
1288                         e[2] = (y + 1) * (width + 1) + (x + 1);
1289                         e[3] = (y + 0) * (width + 1) + (x + 0);
1290                         e[4] = (y + 0) * (width + 1) + (x + 1);
1291                         e[5] = (y + 1) * (width + 1) + (x + 1);
1292                         e += 6;
1293                 }
1294         }
1295         for (y = 0, iy = y1;y < height + 1;y++, iy++)
1296                 for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
1297                         Mod_GetTerrainVertexFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
1298 }
1299 #endif
1300
1301 #if 0
1302 void Mod_Terrain_SurfaceRecurseChunk(model_t *model, int stepsize, int x, int y)
1303 {
1304         float mins[3];
1305         float maxs[3];
1306         float chunkwidth = min(stepsize, model->terrain.width - 1 - x);
1307         float chunkheight = min(stepsize, model->terrain.height - 1 - y);
1308         float viewvector[3];
1309         unsigned int firstvertex;
1310         unsigned int *e;
1311         float *v;
1312         if (chunkwidth < 2 || chunkheight < 2)
1313                 return;
1314         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]);
1315         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]);
1316         viewvector[0] = bound(mins[0], localvieworigin, maxs[0]) - model->terrain.vieworigin[0];
1317         viewvector[1] = bound(mins[1], localvieworigin, maxs[1]) - model->terrain.vieworigin[1];
1318         viewvector[2] = bound(mins[2], localvieworigin, maxs[2]) - model->terrain.vieworigin[2];
1319         if (stepsize > 1 && VectorLength(viewvector) < stepsize*model->terrain.scale[0]*r_terrain_lodscale.value)
1320         {
1321                 // too close for this stepsize, emit as 4 chunks instead
1322                 stepsize /= 2;
1323                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y);
1324                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y);
1325                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y+stepsize);
1326                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y+stepsize);
1327                 return;
1328         }
1329         // emit the geometry at stepsize into our vertex buffer / index buffer
1330         // we add two columns and two rows for skirt
1331         outwidth = chunkwidth+2;
1332         outheight = chunkheight+2;
1333         outwidth2 = outwidth-1;
1334         outheight2 = outheight-1;
1335         outwidth3 = outwidth+1;
1336         outheight3 = outheight+1;
1337         firstvertex = numvertices;
1338         e = model->terrain.element3i + numtriangles;
1339         numtriangles += chunkwidth*chunkheight*2+chunkwidth*2*2+chunkheight*2*2;
1340         v = model->terrain.vertex3f + numvertices;
1341         numvertices += (chunkwidth+1)*(chunkheight+1)+(chunkwidth+1)*2+(chunkheight+1)*2;
1342         // emit the triangles (note: the skirt is treated as two extra rows and two extra columns)
1343         for (ty = 0;ty < outheight;ty++)
1344         {
1345                 for (tx = 0;tx < outwidth;tx++)
1346                 {
1347                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1348                         *e++ = firstvertex + (ty  )*outwidth3+(tx+1);
1349                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1350                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1351                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1352                         *e++ = firstvertex + (ty+1)*outwidth3+(tx  );
1353                 }
1354         }
1355         // TODO: emit surface vertices (x+tx*stepsize, y+ty*stepsize)
1356         for (ty = 0;ty <= outheight;ty++)
1357         {
1358                 skirtrow = ty == 0 || ty == outheight;
1359                 ry = y+bound(1, ty, outheight)*stepsize;
1360                 for (tx = 0;tx <= outwidth;tx++)
1361                 {
1362                         skirt = skirtrow || tx == 0 || tx == outwidth;
1363                         rx = x+bound(1, tx, outwidth)*stepsize;
1364                         v[0] = rx*scale[0];
1365                         v[1] = ry*scale[1];
1366                         v[2] = heightmap[ry*terrainwidth+rx]*scale[2];
1367                         v += 3;
1368                 }
1369         }
1370         // TODO: emit skirt vertices
1371 }
1372
1373 void Mod_Terrain_UpdateSurfacesForViewOrigin(model_t *model)
1374 {
1375         for (y = 0;y < model->terrain.size[1];y += model->terrain.
1376         Mod_Terrain_SurfaceRecurseChunk(model, model->terrain.maxstepsize, x, y);
1377         Mod_Terrain_BuildChunk(model,
1378 }
1379 #endif
1380
1381 static int Mod_LoadQ3Shaders_EnumerateWaveFunc(const char *s)
1382 {
1383         int offset = 0;
1384         if (!strncasecmp(s, "user", 4)) // parse stuff like "user1sin", always user<n>func
1385         {
1386                 offset = bound(0, s[4] - '0', 9);
1387                 offset = (offset + 1) << Q3WAVEFUNC_USER_SHIFT;
1388                 s += 4;
1389                 if(*s)
1390                         ++s;
1391         }
1392         if (!strcasecmp(s, "sin"))             return offset | Q3WAVEFUNC_SIN;
1393         if (!strcasecmp(s, "square"))          return offset | Q3WAVEFUNC_SQUARE;
1394         if (!strcasecmp(s, "triangle"))        return offset | Q3WAVEFUNC_TRIANGLE;
1395         if (!strcasecmp(s, "sawtooth"))        return offset | Q3WAVEFUNC_SAWTOOTH;
1396         if (!strcasecmp(s, "inversesawtooth")) return offset | Q3WAVEFUNC_INVERSESAWTOOTH;
1397         if (!strcasecmp(s, "noise"))           return offset | Q3WAVEFUNC_NOISE;
1398         if (!strcasecmp(s, "none"))            return offset | Q3WAVEFUNC_NONE;
1399         Con_DPrintf("Mod_LoadQ3Shaders: unknown wavefunc %s\n", s);
1400         return offset | Q3WAVEFUNC_NONE;
1401 }
1402
1403 void Mod_FreeQ3Shaders(void)
1404 {
1405         Mem_FreePool(&q3shaders_mem);
1406 }
1407
1408 static void Q3Shader_AddToHash (shader_t* shader)
1409 {
1410         unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)shader->name, strlen (shader->name));
1411         q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1412         q3shader_hash_entry_t* lastEntry = NULL;
1413         do
1414         {
1415                 if (strcasecmp (entry->shader.name, shader->name) == 0)
1416                 {
1417                         // redeclaration
1418                         if(shader->dpshaderkill)
1419                         {
1420                                 // killed shader is a redeclarion? we can safely ignore it
1421                                 return;
1422                         }
1423                         else if(entry->shader.dpshaderkill)
1424                         {
1425                                 // replace the old shader!
1426                                 // this will skip the entry allocating part
1427                                 // below and just replace the shader
1428                                 break;
1429                         }
1430                         else
1431                         {
1432                                 unsigned char *start, *end, *start2;
1433                                 start = (unsigned char *) (&shader->Q3SHADERINFO_COMPARE_START);
1434                                 end = ((unsigned char *) (&shader->Q3SHADERINFO_COMPARE_END)) + sizeof(shader->Q3SHADERINFO_COMPARE_END);
1435                                 start2 = (unsigned char *) (&entry->shader.Q3SHADERINFO_COMPARE_START);
1436                                 if(memcmp(start, start2, end - start))
1437                                         Con_DPrintf("Shader '%s' already defined, ignoring mismatching redeclaration\n", shader->name);
1438                                 else
1439                                         Con_DPrintf("Shader '%s' already defined\n", shader->name);
1440                                 return;
1441                         }
1442                 }
1443                 lastEntry = entry;
1444                 entry = entry->chain;
1445         }
1446         while (entry != NULL);
1447         if (entry == NULL)
1448         {
1449                 if (lastEntry->shader.name[0] != 0)
1450                 {
1451                         /* Add to chain */
1452                         q3shader_hash_entry_t* newEntry = (q3shader_hash_entry_t*)
1453                           Mem_ExpandableArray_AllocRecord (&q3shader_data->hash_entries);
1454
1455                         while (lastEntry->chain != NULL) lastEntry = lastEntry->chain;
1456                         lastEntry->chain = newEntry;
1457                         newEntry->chain = NULL;
1458                         lastEntry = newEntry;
1459                 }
1460                 /* else: head of chain, in hash entry array */
1461                 entry = lastEntry;
1462         }
1463         memcpy (&entry->shader, shader, sizeof (shader_t));
1464 }
1465
1466 void Mod_LoadQ3Shaders(void)
1467 {
1468         int j;
1469         int fileindex;
1470         fssearch_t *search;
1471         char *f;
1472         const char *text;
1473         shader_t shader;
1474         q3shaderinfo_layer_t *layer;
1475         int numparameters;
1476         char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
1477         char *custsurfaceparmnames[256]; // VorteX: q3map2 has 64 but well, someone will need more
1478         unsigned long custsurfaceflags[256];
1479         int numcustsurfaceflags;
1480         qbool dpshaderkill;
1481
1482         Mod_FreeQ3Shaders();
1483
1484         q3shaders_mem = Mem_AllocPool("q3shaders", 0, NULL);
1485         q3shader_data = (q3shader_data_t*)Mem_Alloc (q3shaders_mem,
1486                 sizeof (q3shader_data_t));
1487         Mem_ExpandableArray_NewArray (&q3shader_data->hash_entries,
1488                 q3shaders_mem, sizeof (q3shader_hash_entry_t), 256);
1489         Mem_ExpandableArray_NewArray (&q3shader_data->char_ptrs,
1490                 q3shaders_mem, sizeof (char**), 256);
1491
1492         // parse custinfoparms.txt
1493         numcustsurfaceflags = 0;
1494         if ((text = f = (char *)FS_LoadFile("scripts/custinfoparms.txt", tempmempool, false, NULL)) != NULL)
1495         {
1496                 if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1497                         Con_DPrintf("scripts/custinfoparms.txt: contentflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1498                 else
1499                 {
1500                         while (COM_ParseToken_QuakeC(&text, false))
1501                                 if (!strcasecmp(com_token, "}"))
1502                                         break;
1503                         // custom surfaceflags section
1504                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1505                                 Con_DPrintf("scripts/custinfoparms.txt: surfaceflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1506                         else
1507                         {
1508                                 while(COM_ParseToken_QuakeC(&text, false))
1509                                 {
1510                                         if (!strcasecmp(com_token, "}"))
1511                                                 break;
1512                                         // register surfaceflag
1513                                         if (numcustsurfaceflags >= 256)
1514                                         {
1515                                                 Con_Printf("scripts/custinfoparms.txt: surfaceflags section parsing error - max 256 surfaceflags exceeded\n");
1516                                                 break;
1517                                         }
1518                                         // name
1519                                         j = (int)strlen(com_token)+1;
1520                                         custsurfaceparmnames[numcustsurfaceflags] = (char *)Mem_Alloc(tempmempool, j);
1521                                         dp_strlcpy(custsurfaceparmnames[numcustsurfaceflags], com_token, j+1);
1522                                         // value
1523                                         if (COM_ParseToken_QuakeC(&text, false))
1524                                                 custsurfaceflags[numcustsurfaceflags] = strtol(com_token, NULL, 0);
1525                                         else
1526                                                 custsurfaceflags[numcustsurfaceflags] = 0;
1527                                         numcustsurfaceflags++;
1528                                 }
1529                         }
1530                 }
1531                 Mem_Free(f);
1532         }
1533
1534         // parse shaders
1535         search = FS_Search("scripts/*.shader", true, false, NULL);
1536         if (!search)
1537                 return;
1538         for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
1539         {
1540                 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
1541                 if (!f)
1542                         continue;
1543                 while (COM_ParseToken_QuakeC(&text, false))
1544                 {
1545                         memset (&shader, 0, sizeof(shader));
1546                         shader.name[0] = 0;
1547                         shader.surfaceparms = 0;
1548                         shader.surfaceflags = 0;
1549                         shader.textureflags = 0;
1550                         shader.numlayers = 0;
1551                         shader.lighting = false;
1552                         shader.vertexalpha = false;
1553                         shader.textureblendalpha = false;
1554                         shader.skyboxname[0] = 0;
1555                         shader.deforms[0].deform = Q3DEFORM_NONE;
1556                         shader.dpnortlight = false;
1557                         shader.dpshadow = false;
1558                         shader.dpnoshadow = false;
1559                         shader.dpmeshcollisions = false;
1560                         shader.dpshaderkill = false;
1561                         shader.dpreflectcube[0] = 0;
1562                         shader.reflectmin = 0;
1563                         shader.reflectmax = 1;
1564                         shader.refractfactor = 1;
1565                         Vector4Set(shader.refractcolor4f, 1, 1, 1, 1);
1566                         shader.reflectfactor = 1;
1567                         Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
1568                         shader.r_water_wateralpha = 1;
1569                         shader.r_water_waterscroll[0] = 0;
1570                         shader.r_water_waterscroll[1] = 0;
1571                         shader.offsetmapping = (mod_q3shader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
1572                         shader.offsetscale = mod_q3shader_default_offsetmapping_scale.value;
1573                         shader.offsetbias = mod_q3shader_default_offsetmapping_bias.value;
1574                         shader.biaspolygonoffset = mod_q3shader_default_polygonoffset.value;
1575                         shader.biaspolygonfactor = mod_q3shader_default_polygonfactor.value;
1576                         shader.transparentsort = TRANSPARENTSORT_DISTANCE;
1577                         shader.specularscalemod = 1;
1578                         shader.specularpowermod = 1;
1579                         shader.rtlightambient = 0;
1580                         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
1581                         // JUST GREP FOR "specularscalemod = 1".
1582
1583                         dp_strlcpy(shader.name, com_token, sizeof(shader.name));
1584                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1585                         {
1586                                 Con_DPrintf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
1587                                 break;
1588                         }
1589                         while (COM_ParseToken_QuakeC(&text, false))
1590                         {
1591                                 if (!strcasecmp(com_token, "}"))
1592                                         break;
1593                                 if (!strcasecmp(com_token, "{"))
1594                                 {
1595                                         static q3shaderinfo_layer_t dummy;
1596                                         if (shader.numlayers < Q3SHADER_MAXLAYERS)
1597                                         {
1598                                                 layer = shader.layers + shader.numlayers++;
1599                                         }
1600                                         else
1601                                         {
1602                                                 // parse and process it anyway, just don't store it (so a map $lightmap or such stuff still is found)
1603                                                 memset(&dummy, 0, sizeof(dummy));
1604                                                 layer = &dummy;
1605                                         }
1606                                         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1607                                         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1608                                         layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1609                                         layer->blendfunc[0] = GL_ONE;
1610                                         layer->blendfunc[1] = GL_ZERO;
1611                                         while (COM_ParseToken_QuakeC(&text, false))
1612                                         {
1613                                                 if (!strcasecmp(com_token, "}"))
1614                                                         break;
1615                                                 if (!strcasecmp(com_token, "\n"))
1616                                                         continue;
1617                                                 numparameters = 0;
1618                                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1619                                                 {
1620                                                         if (j < TEXTURE_MAXFRAMES + 4)
1621                                                         {
1622                                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1623                                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1624                                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1625                                                                 else
1626                                                                         dp_strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1627                                                                 numparameters = j + 1;
1628                                                         }
1629                                                         if (!COM_ParseToken_QuakeC(&text, true))
1630                                                                 break;
1631                                                 }
1632                                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1633                                                 //      parameter[j][0] = 0;
1634                                                 if (developer_insane.integer)
1635                                                 {
1636                                                         Con_DPrintf("%s %i: ", shader.name, shader.numlayers - 1);
1637                                                         for (j = 0;j < numparameters;j++)
1638                                                                 Con_DPrintf(" %s", parameter[j]);
1639                                                         Con_DPrint("\n");
1640                                                 }
1641                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
1642                                                 {
1643                                                         if (numparameters == 2)
1644                                                         {
1645                                                                 if (!strcasecmp(parameter[1], "add"))
1646                                                                 {
1647                                                                         layer->blendfunc[0] = GL_ONE;
1648                                                                         layer->blendfunc[1] = GL_ONE;
1649                                                                 }
1650                                                                 else if (!strcasecmp(parameter[1], "addalpha"))
1651                                                                 {
1652                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1653                                                                         layer->blendfunc[1] = GL_ONE;
1654                                                                 }
1655                                                                 else if (!strcasecmp(parameter[1], "filter"))
1656                                                                 {
1657                                                                         layer->blendfunc[0] = GL_DST_COLOR;
1658                                                                         layer->blendfunc[1] = GL_ZERO;
1659                                                                 }
1660                                                                 else if (!strcasecmp(parameter[1], "blend"))
1661                                                                 {
1662                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1663                                                                         layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
1664                                                                 }
1665                                                         }
1666                                                         else if (numparameters == 3)
1667                                                         {
1668                                                                 int k;
1669                                                                 for (k = 0;k < 2;k++)
1670                                                                 {
1671                                                                         if (!strcasecmp(parameter[k+1], "GL_ONE"))
1672                                                                                 layer->blendfunc[k] = GL_ONE;
1673                                                                         else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
1674                                                                                 layer->blendfunc[k] = GL_ZERO;
1675                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
1676                                                                                 layer->blendfunc[k] = GL_SRC_COLOR;
1677                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
1678                                                                                 layer->blendfunc[k] = GL_SRC_ALPHA;
1679                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
1680                                                                                 layer->blendfunc[k] = GL_DST_COLOR;
1681                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
1682                                                                                 layer->blendfunc[k] = GL_DST_ALPHA;
1683                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
1684                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
1685                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
1686                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
1687                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
1688                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
1689                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
1690                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1691                                                                         else
1692                                                                                 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
1693                                                                 }
1694                                                         }
1695                                                 }
1696                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
1697                                                         layer->alphatest = true;
1698                                                 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
1699                                                 {
1700                                                         if (!strcasecmp(parameter[0], "clampmap"))
1701                                                                 layer->clampmap = true;
1702                                                         layer->numframes = 1;
1703                                                         layer->framerate = 1;
1704                                                         layer->texturename = (char**)Mem_ExpandableArray_AllocRecord (
1705                                                                 &q3shader_data->char_ptrs);
1706                                                         layer->texturename[0] = Mem_strdup (q3shaders_mem, parameter[1]);
1707                                                         if (!strcasecmp(parameter[1], "$lightmap"))
1708                                                                 shader.lighting = true;
1709                                                 }
1710                                                 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
1711                                                 {
1712                                                         int i;
1713                                                         layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
1714                                                         layer->framerate = atof(parameter[1]);
1715                                                         layer->texturename = (char **) Mem_Alloc (q3shaders_mem, sizeof (char*) * layer->numframes);
1716                                                         for (i = 0;i < layer->numframes;i++)
1717                                                                 layer->texturename[i] = Mem_strdup (q3shaders_mem, parameter[i + 2]);
1718                                                 }
1719                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen"))
1720                                                 {
1721                                                         int i;
1722                                                         for (i = 0;i < numparameters - 2 && i < Q3RGBGEN_MAXPARMS;i++)
1723                                                                 layer->rgbgen.parms[i] = atof(parameter[i+2]);
1724                                                              if (!strcasecmp(parameter[1], "identity"))         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1725                                                         else if (!strcasecmp(parameter[1], "const"))            layer->rgbgen.rgbgen = Q3RGBGEN_CONST;
1726                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->rgbgen.rgbgen = Q3RGBGEN_ENTITY;
1727                                                         else if (!strcasecmp(parameter[1], "exactvertex"))      layer->rgbgen.rgbgen = Q3RGBGEN_EXACTVERTEX;
1728                                                         else if (!strcasecmp(parameter[1], "identitylighting")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITYLIGHTING;
1729                                                         else if (!strcasecmp(parameter[1], "lightingdiffuse"))  layer->rgbgen.rgbgen = Q3RGBGEN_LIGHTINGDIFFUSE;
1730                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSENTITY;
1731                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSVERTEX;
1732                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->rgbgen.rgbgen = Q3RGBGEN_VERTEX;
1733                                                         else if (!strcasecmp(parameter[1], "wave"))
1734                                                         {
1735                                                                 layer->rgbgen.rgbgen = Q3RGBGEN_WAVE;
1736                                                                 layer->rgbgen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1737                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1738                                                                         layer->rgbgen.waveparms[i] = atof(parameter[i+3]);
1739                                                         }
1740                                                         else Con_DPrintf("%s parsing warning: unknown rgbgen %s\n", search->filenames[fileindex], parameter[1]);
1741                                                 }
1742                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen"))
1743                                                 {
1744                                                         int i;
1745                                                         for (i = 0;i < numparameters - 2 && i < Q3ALPHAGEN_MAXPARMS;i++)
1746                                                                 layer->alphagen.parms[i] = atof(parameter[i+2]);
1747                                                              if (!strcasecmp(parameter[1], "identity"))         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1748                                                         else if (!strcasecmp(parameter[1], "const"))            layer->alphagen.alphagen = Q3ALPHAGEN_CONST;
1749                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->alphagen.alphagen = Q3ALPHAGEN_ENTITY;
1750                                                         else if (!strcasecmp(parameter[1], "lightingspecular")) layer->alphagen.alphagen = Q3ALPHAGEN_LIGHTINGSPECULAR;
1751                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSENTITY;
1752                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSVERTEX;
1753                                                         else if (!strcasecmp(parameter[1], "portal"))           layer->alphagen.alphagen = Q3ALPHAGEN_PORTAL;
1754                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->alphagen.alphagen = Q3ALPHAGEN_VERTEX;
1755                                                         else if (!strcasecmp(parameter[1], "wave"))
1756                                                         {
1757                                                                 layer->alphagen.alphagen = Q3ALPHAGEN_WAVE;
1758                                                                 layer->alphagen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1759                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1760                                                                         layer->alphagen.waveparms[i] = atof(parameter[i+3]);
1761                                                         }
1762                                                         else Con_DPrintf("%s parsing warning: unknown alphagen %s\n", search->filenames[fileindex], parameter[1]);
1763                                                 }
1764                                                 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "texgen") || !strcasecmp(parameter[0], "tcgen")))
1765                                                 {
1766                                                         int i;
1767                                                         // observed values: tcgen environment
1768                                                         // no other values have been observed in real shaders
1769                                                         for (i = 0;i < numparameters - 2 && i < Q3TCGEN_MAXPARMS;i++)
1770                                                                 layer->tcgen.parms[i] = atof(parameter[i+2]);
1771                                                              if (!strcasecmp(parameter[1], "base"))        layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1772                                                         else if (!strcasecmp(parameter[1], "texture"))     layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1773                                                         else if (!strcasecmp(parameter[1], "environment")) layer->tcgen.tcgen = Q3TCGEN_ENVIRONMENT;
1774                                                         else if (!strcasecmp(parameter[1], "lightmap"))    layer->tcgen.tcgen = Q3TCGEN_LIGHTMAP;
1775                                                         else if (!strcasecmp(parameter[1], "vector"))      layer->tcgen.tcgen = Q3TCGEN_VECTOR;
1776                                                         else Con_DPrintf("%s parsing warning: unknown tcgen mode %s\n", search->filenames[fileindex], parameter[1]);
1777                                                 }
1778                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "tcmod"))
1779                                                 {
1780                                                         int i, tcmodindex;
1781                                                         // observed values:
1782                                                         // tcmod rotate #
1783                                                         // tcmod scale # #
1784                                                         // tcmod scroll # #
1785                                                         // tcmod stretch sin # # # #
1786                                                         // tcmod stretch triangle # # # #
1787                                                         // tcmod transform # # # # # #
1788                                                         // tcmod turb # # # #
1789                                                         // tcmod turb sin # # # #  (this is bogus)
1790                                                         // no other values have been observed in real shaders
1791                                                         for (tcmodindex = 0;tcmodindex < Q3MAXTCMODS;tcmodindex++)
1792                                                                 if (!layer->tcmods[tcmodindex].tcmod)
1793                                                                         break;
1794                                                         if (tcmodindex < Q3MAXTCMODS)
1795                                                         {
1796                                                                 for (i = 0;i < numparameters - 2 && i < Q3TCMOD_MAXPARMS;i++)
1797                                                                         layer->tcmods[tcmodindex].parms[i] = atof(parameter[i+2]);
1798                                                                          if (!strcasecmp(parameter[1], "entitytranslate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ENTITYTRANSLATE;
1799                                                                 else if (!strcasecmp(parameter[1], "rotate"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ROTATE;
1800                                                                 else if (!strcasecmp(parameter[1], "scale"))           layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCALE;
1801                                                                 else if (!strcasecmp(parameter[1], "scroll"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCROLL;
1802                                                                 else if (!strcasecmp(parameter[1], "page"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_PAGE;
1803                                                                 else if (!strcasecmp(parameter[1], "stretch"))
1804                                                                 {
1805                                                                         layer->tcmods[tcmodindex].tcmod = Q3TCMOD_STRETCH;
1806                                                                         layer->tcmods[tcmodindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1807                                                                         for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1808                                                                                 layer->tcmods[tcmodindex].waveparms[i] = atof(parameter[i+3]);
1809                                                                 }
1810                                                                 else if (!strcasecmp(parameter[1], "transform"))       layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TRANSFORM;
1811                                                                 else if (!strcasecmp(parameter[1], "turb"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TURBULENT;
1812                                                                 else Con_DPrintf("%s parsing warning: unknown tcmod mode %s\n", search->filenames[fileindex], parameter[1]);
1813                                                         }
1814                                                         else
1815                                                                 Con_DPrintf("%s parsing warning: too many tcmods on one layer\n", search->filenames[fileindex]);
1816                                                 }
1817                                                 // break out a level if it was a closing brace (not using the character here to not confuse vim)
1818                                                 if (!strcasecmp(com_token, "}"))
1819                                                         break;
1820                                         }
1821                                         if (layer->rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE || layer->rgbgen.rgbgen == Q3RGBGEN_VERTEX)
1822                                                 shader.lighting = true;
1823                                         if (layer->alphagen.alphagen == Q3ALPHAGEN_VERTEX)
1824                                         {
1825                                                 if (layer == shader.layers + 0)
1826                                                 {
1827                                                         // vertex controlled transparency
1828                                                         shader.vertexalpha = true;
1829                                                 }
1830                                                 else
1831                                                 {
1832                                                         // multilayer terrain shader or similar
1833                                                         shader.textureblendalpha = true;
1834                                                         if (mod_q3shader_force_terrain_alphaflag.integer)
1835                                                                 shader.layers[0].dptexflags |= TEXF_ALPHA;
1836                                                 }
1837                                         }
1838
1839                                         if(mod_q3shader_force_addalpha.integer)
1840                                         {
1841                                                 // for a long while, DP treated GL_ONE GL_ONE as GL_SRC_ALPHA GL_ONE
1842                                                 // this cvar brings back this behaviour
1843                                                 if(layer->blendfunc[0] == GL_ONE && layer->blendfunc[1] == GL_ONE)
1844                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1845                                         }
1846
1847                                         layer->dptexflags = 0;
1848                                         if (layer->alphatest)
1849                                                 layer->dptexflags |= TEXF_ALPHA;
1850                                         switch(layer->blendfunc[0])
1851                                         {
1852                                                 case GL_SRC_ALPHA:
1853                                                 case GL_ONE_MINUS_SRC_ALPHA:
1854                                                         layer->dptexflags |= TEXF_ALPHA;
1855                                                         break;
1856                                         }
1857                                         switch(layer->blendfunc[1])
1858                                         {
1859                                                 case GL_SRC_ALPHA:
1860                                                 case GL_ONE_MINUS_SRC_ALPHA:
1861                                                         layer->dptexflags |= TEXF_ALPHA;
1862                                                         break;
1863                                         }
1864                                         if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
1865                                                 layer->dptexflags |= TEXF_MIPMAP;
1866                                         if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
1867                                                 layer->dptexflags |= TEXF_PICMIP | TEXF_COMPRESS;
1868                                         if (layer->clampmap)
1869                                                 layer->dptexflags |= TEXF_CLAMP;
1870                                         continue;
1871                                 }
1872                                 numparameters = 0;
1873                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1874                                 {
1875                                         if (j < TEXTURE_MAXFRAMES + 4)
1876                                         {
1877                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1878                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1879                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1880                                                 else
1881                                                         dp_strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1882                                                 numparameters = j + 1;
1883                                         }
1884                                         if (!COM_ParseToken_QuakeC(&text, true))
1885                                                 break;
1886                                 }
1887                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1888                                 //      parameter[j][0] = 0;
1889                                 if (fileindex == 0 && !strcasecmp(com_token, "}"))
1890                                         break;
1891                                 if (developer_insane.integer)
1892                                 {
1893                                         Con_DPrintf("%s: ", shader.name);
1894                                         for (j = 0;j < numparameters;j++)
1895                                                 Con_DPrintf(" %s", parameter[j]);
1896                                         Con_DPrint("\n");
1897                                 }
1898                                 if (numparameters < 1)
1899                                         continue;
1900                                 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
1901                                 {
1902                                         if (!strcasecmp(parameter[1], "alphashadow"))
1903                                                 shader.surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
1904                                         else if (!strcasecmp(parameter[1], "areaportal"))
1905                                                 shader.surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
1906                                         else if (!strcasecmp(parameter[1], "botclip"))
1907                                                 shader.surfaceparms |= Q3SURFACEPARM_BOTCLIP;
1908                                         else if (!strcasecmp(parameter[1], "clusterportal"))
1909                                                 shader.surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
1910                                         else if (!strcasecmp(parameter[1], "detail"))
1911                                                 shader.surfaceparms |= Q3SURFACEPARM_DETAIL;
1912                                         else if (!strcasecmp(parameter[1], "donotenter"))
1913                                                 shader.surfaceparms |= Q3SURFACEPARM_DONOTENTER;
1914                                         else if (!strcasecmp(parameter[1], "dust"))
1915                                                 shader.surfaceparms |= Q3SURFACEPARM_DUST;
1916                                         else if (!strcasecmp(parameter[1], "hint"))
1917                                                 shader.surfaceparms |= Q3SURFACEPARM_HINT;
1918                                         else if (!strcasecmp(parameter[1], "fog"))
1919                                                 shader.surfaceparms |= Q3SURFACEPARM_FOG;
1920                                         else if (!strcasecmp(parameter[1], "lava"))
1921                                                 shader.surfaceparms |= Q3SURFACEPARM_LAVA;
1922                                         else if (!strcasecmp(parameter[1], "lightfilter"))
1923                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
1924                                         else if (!strcasecmp(parameter[1], "lightgrid"))
1925                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
1926                                         else if (!strcasecmp(parameter[1], "metalsteps"))
1927                                                 shader.surfaceparms |= Q3SURFACEPARM_METALSTEPS;
1928                                         else if (!strcasecmp(parameter[1], "nodamage"))
1929                                                 shader.surfaceparms |= Q3SURFACEPARM_NODAMAGE;
1930                                         else if (!strcasecmp(parameter[1], "nodlight"))
1931                                                 shader.surfaceparms |= Q3SURFACEPARM_NODLIGHT;
1932                                         else if (!strcasecmp(parameter[1], "nodraw"))
1933                                                 shader.surfaceparms |= Q3SURFACEPARM_NODRAW;
1934                                         else if (!strcasecmp(parameter[1], "nodrop"))
1935                                                 shader.surfaceparms |= Q3SURFACEPARM_NODROP;
1936                                         else if (!strcasecmp(parameter[1], "noimpact"))
1937                                                 shader.surfaceparms |= Q3SURFACEPARM_NOIMPACT;
1938                                         else if (!strcasecmp(parameter[1], "nolightmap"))
1939                                                 shader.surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
1940                                         else if (!strcasecmp(parameter[1], "nomarks"))
1941                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMARKS;
1942                                         else if (!strcasecmp(parameter[1], "nomipmaps"))
1943                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
1944                                         else if (!strcasecmp(parameter[1], "nonsolid"))
1945                                                 shader.surfaceparms |= Q3SURFACEPARM_NONSOLID;
1946                                         else if (!strcasecmp(parameter[1], "origin"))
1947                                                 shader.surfaceparms |= Q3SURFACEPARM_ORIGIN;
1948                                         else if (!strcasecmp(parameter[1], "playerclip"))
1949                                                 shader.surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
1950                                         else if (!strcasecmp(parameter[1], "sky"))
1951                                                 shader.surfaceparms |= Q3SURFACEPARM_SKY;
1952                                         else if (!strcasecmp(parameter[1], "slick"))
1953                                                 shader.surfaceparms |= Q3SURFACEPARM_SLICK;
1954                                         else if (!strcasecmp(parameter[1], "slime"))
1955                                                 shader.surfaceparms |= Q3SURFACEPARM_SLIME;
1956                                         else if (!strcasecmp(parameter[1], "structural"))
1957                                                 shader.surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
1958                                         else if (!strcasecmp(parameter[1], "trans"))
1959                                                 shader.surfaceparms |= Q3SURFACEPARM_TRANS;
1960                                         else if (!strcasecmp(parameter[1], "water"))
1961                                                 shader.surfaceparms |= Q3SURFACEPARM_WATER;
1962                                         else if (!strcasecmp(parameter[1], "pointlight"))
1963                                                 shader.surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
1964                                         else if (!strcasecmp(parameter[1], "antiportal"))
1965                                                 shader.surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
1966                                         else if (!strcasecmp(parameter[1], "skip"))
1967                                                 ; // shader.surfaceparms |= Q3SURFACEPARM_SKIP; FIXME we don't have enough #defines for this any more, and the engine doesn't need this one anyway
1968                                         else
1969                                         {
1970                                                 // try custom surfaceparms
1971                                                 for (j = 0; j < numcustsurfaceflags; j++)
1972                                                 {
1973                                                         if (!strcasecmp(custsurfaceparmnames[j], parameter[1]))
1974                                                         {
1975                                                                 shader.surfaceflags |= custsurfaceflags[j];
1976                                                                 break;
1977                                                         }
1978                                                 }
1979                                                 // failed all
1980                                                 if (j == numcustsurfaceflags)
1981                                                         Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
1982                                         }
1983                                 }
1984                                 else if (!strcasecmp(parameter[0], "dpshadow"))
1985                                         shader.dpshadow = true;
1986                                 else if (!strcasecmp(parameter[0], "dpnoshadow"))
1987                                         shader.dpnoshadow = true;
1988                                 else if (!strcasecmp(parameter[0], "dpnortlight"))
1989                                         shader.dpnortlight = true;
1990                                 else if (!strcasecmp(parameter[0], "dpreflectcube"))
1991                                         dp_strlcpy(shader.dpreflectcube, parameter[1], sizeof(shader.dpreflectcube));
1992                                 else if (!strcasecmp(parameter[0], "dpmeshcollisions"))
1993                                         shader.dpmeshcollisions = true;
1994                                 // this sets dpshaderkill to true if dpshaderkillifcvarzero was used, and to false if dpnoshaderkillifcvarzero was used
1995                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvarzero")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvarzero")) && numparameters >= 2)
1996                                 {
1997                                         if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) == 0.0f)
1998                                                 shader.dpshaderkill = dpshaderkill;
1999                                 }
2000                                 // this sets dpshaderkill to true if dpshaderkillifcvar was used, and to false if dpnoshaderkillifcvar was used
2001                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvar")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvar")) && numparameters >= 2)
2002                                 {
2003                                         const char *op = NULL;
2004                                         if (numparameters >= 3)
2005                                                 op = parameter[2];
2006                                         if(!op)
2007                                         {
2008                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) != 0.0f)
2009                                                         shader.dpshaderkill = dpshaderkill;
2010                                         }
2011                                         else if (numparameters >= 4 && !strcmp(op, "=="))
2012                                         {
2013                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) == atof(parameter[3]))
2014                                                         shader.dpshaderkill = dpshaderkill;
2015                                         }
2016                                         else if (numparameters >= 4 && !strcmp(op, "!="))
2017                                         {
2018                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) != atof(parameter[3]))
2019                                                         shader.dpshaderkill = dpshaderkill;
2020                                         }
2021                                         else if (numparameters >= 4 && !strcmp(op, ">"))
2022                                         {
2023                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) > atof(parameter[3]))
2024                                                         shader.dpshaderkill = dpshaderkill;
2025                                         }
2026                                         else if (numparameters >= 4 && !strcmp(op, "<"))
2027                                         {
2028                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) < atof(parameter[3]))
2029                                                         shader.dpshaderkill = dpshaderkill;
2030                                         }
2031                                         else if (numparameters >= 4 && !strcmp(op, ">="))
2032                                         {
2033                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) >= atof(parameter[3]))
2034                                                         shader.dpshaderkill = dpshaderkill;
2035                                         }
2036                                         else if (numparameters >= 4 && !strcmp(op, "<="))
2037                                         {
2038                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) <= atof(parameter[3]))
2039                                                         shader.dpshaderkill = dpshaderkill;
2040                                         }
2041                                         else
2042                                         {
2043                                                 Con_DPrintf("%s parsing warning: unknown dpshaderkillifcvar op \"%s\", or not enough arguments\n", search->filenames[fileindex], op);
2044                                         }
2045                                 }
2046                                 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
2047                                 {
2048                                         // some q3 skies don't have the sky parm set
2049                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2050                                         dp_strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2051                                 }
2052                                 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
2053                                 {
2054                                         // some q3 skies don't have the sky parm set
2055                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2056                                         if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
2057                                                 dp_strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2058                                 }
2059                                 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
2060                                 {
2061                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
2062                                                 shader.textureflags |= Q3TEXTUREFLAG_TWOSIDED;
2063                                 }
2064                                 else if (!strcasecmp(parameter[0], "nomipmaps"))
2065                                         shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2066                                 else if (!strcasecmp(parameter[0], "nopicmip"))
2067                                         shader.textureflags |= Q3TEXTUREFLAG_NOPICMIP;
2068                                 else if (!strcasecmp(parameter[0], "polygonoffset"))
2069                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2070                                 else if (!strcasecmp(parameter[0], "dppolygonoffset"))
2071                                 {
2072                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2073                                         if(numparameters >= 2)
2074                                         {
2075                                                 shader.biaspolygonfactor = atof(parameter[1]);
2076                                                 if(numparameters >= 3)
2077                                                         shader.biaspolygonoffset = atof(parameter[2]);
2078                                                 else
2079                                                         shader.biaspolygonoffset = 0;
2080                                         }
2081                                 }
2082                                 else if (!strcasecmp(parameter[0], "dptransparentsort") && numparameters >= 2)
2083                                 {
2084                                         shader.textureflags |= Q3TEXTUREFLAG_TRANSPARENTSORT;
2085                                         if (!strcasecmp(parameter[1], "sky"))
2086                                                 shader.transparentsort = TRANSPARENTSORT_SKY;
2087                                         else if (!strcasecmp(parameter[1], "distance"))
2088                                                 shader.transparentsort = TRANSPARENTSORT_DISTANCE;
2089                                         else if (!strcasecmp(parameter[1], "hud"))
2090                                                 shader.transparentsort = TRANSPARENTSORT_HUD;
2091                                         else
2092                                                 Con_DPrintf("%s parsing warning: unknown dptransparentsort category \"%s\", or not enough arguments\n", search->filenames[fileindex], parameter[1]);
2093                                 }
2094                                 else if (!strcasecmp(parameter[0], "dprefract") && numparameters >= 5)
2095                                 {
2096                                         shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
2097                                         shader.refractfactor = atof(parameter[1]);
2098                                         Vector4Set(shader.refractcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), 1);
2099                                 }
2100                                 else if (!strcasecmp(parameter[0], "dpreflect") && numparameters >= 6)
2101                                 {
2102                                         shader.textureflags |= Q3TEXTUREFLAG_REFLECTION;
2103                                         shader.reflectfactor = atof(parameter[1]);
2104                                         Vector4Set(shader.reflectcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), atof(parameter[5]));
2105                                 }
2106                                 else if (!strcasecmp(parameter[0], "dpcamera"))
2107                                 {
2108                                         shader.textureflags |= Q3TEXTUREFLAG_CAMERA;
2109                                 }
2110                                 else if (!strcasecmp(parameter[0], "dpwater") && numparameters >= 12)
2111                                 {
2112                                         shader.textureflags |= Q3TEXTUREFLAG_WATERSHADER;
2113                                         shader.reflectmin = atof(parameter[1]);
2114                                         shader.reflectmax = atof(parameter[2]);
2115                                         shader.refractfactor = atof(parameter[3]);
2116                                         shader.reflectfactor = atof(parameter[4]);
2117                                         Vector4Set(shader.refractcolor4f, atof(parameter[5]), atof(parameter[6]), atof(parameter[7]), 1);
2118                                         Vector4Set(shader.reflectcolor4f, atof(parameter[8]), atof(parameter[9]), atof(parameter[10]), 1);
2119                                         shader.r_water_wateralpha = atof(parameter[11]);
2120                                 }
2121                                 else if (!strcasecmp(parameter[0], "dpwaterscroll") && numparameters >= 3)
2122                                 {
2123                                         shader.r_water_waterscroll[0] = 1/atof(parameter[1]);
2124                                         shader.r_water_waterscroll[1] = 1/atof(parameter[2]);
2125                                 }
2126                                 else if (!strcasecmp(parameter[0], "dpglossintensitymod") && numparameters >= 2)
2127                                 {
2128                                         shader.specularscalemod = atof(parameter[1]);
2129                                 }
2130                                 else if (!strcasecmp(parameter[0], "dpglossexponentmod") && numparameters >= 2)
2131                                 {
2132                                         shader.specularpowermod = atof(parameter[1]);
2133                                 }
2134                                 else if (!strcasecmp(parameter[0], "dprtlightambient") && numparameters >= 2)
2135                                 {
2136                                         shader.rtlightambient = atof(parameter[1]);
2137                                 }
2138                                 else if (!strcasecmp(parameter[0], "dpoffsetmapping") && numparameters >= 2)
2139                                 {
2140                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "off"))
2141                                                 shader.offsetmapping = OFFSETMAPPING_OFF;
2142                                         else if (!strcasecmp(parameter[1], "default") || !strcasecmp(parameter[1], "normal"))
2143                                                 shader.offsetmapping = OFFSETMAPPING_DEFAULT;
2144                                         else if (!strcasecmp(parameter[1], "linear"))
2145                                                 shader.offsetmapping = OFFSETMAPPING_LINEAR;
2146                                         else if (!strcasecmp(parameter[1], "relief"))
2147                                                 shader.offsetmapping = OFFSETMAPPING_RELIEF;
2148                                         if (numparameters >= 3)
2149                                                 shader.offsetscale = atof(parameter[2]);
2150                                         if (numparameters >= 5)
2151                                         {
2152                                                 if(!strcasecmp(parameter[3], "bias"))
2153                                                         shader.offsetbias = atof(parameter[4]);
2154                                                 else if(!strcasecmp(parameter[3], "match"))
2155                                                         shader.offsetbias = 1.0f - atof(parameter[4]);
2156                                                 else if(!strcasecmp(parameter[3], "match8"))
2157                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 255.0f;
2158                                                 else if(!strcasecmp(parameter[3], "match16"))
2159                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 65535.0f;
2160                                         }
2161                                 }
2162                                 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
2163                                 {
2164                                         int i, deformindex;
2165                                         for (deformindex = 0;deformindex < Q3MAXDEFORMS;deformindex++)
2166                                                 if (!shader.deforms[deformindex].deform)
2167                                                         break;
2168                                         if (deformindex < Q3MAXDEFORMS)
2169                                         {
2170                                                 for (i = 0;i < numparameters - 2 && i < Q3DEFORM_MAXPARMS;i++)
2171                                                         shader.deforms[deformindex].parms[i] = atof(parameter[i+2]);
2172                                                      if (!strcasecmp(parameter[1], "projectionshadow")) shader.deforms[deformindex].deform = Q3DEFORM_PROJECTIONSHADOW;
2173                                                 else if (!strcasecmp(parameter[1], "autosprite"      )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE;
2174                                                 else if (!strcasecmp(parameter[1], "autosprite2"     )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE2;
2175                                                 else if (!strcasecmp(parameter[1], "text0"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT0;
2176                                                 else if (!strcasecmp(parameter[1], "text1"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT1;
2177                                                 else if (!strcasecmp(parameter[1], "text2"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT2;
2178                                                 else if (!strcasecmp(parameter[1], "text3"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT3;
2179                                                 else if (!strcasecmp(parameter[1], "text4"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT4;
2180                                                 else if (!strcasecmp(parameter[1], "text5"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT5;
2181                                                 else if (!strcasecmp(parameter[1], "text6"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT6;
2182                                                 else if (!strcasecmp(parameter[1], "text7"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT7;
2183                                                 else if (!strcasecmp(parameter[1], "bulge"           )) shader.deforms[deformindex].deform = Q3DEFORM_BULGE;
2184                                                 else if (!strcasecmp(parameter[1], "normal"          )) shader.deforms[deformindex].deform = Q3DEFORM_NORMAL;
2185                                                 else if (!strcasecmp(parameter[1], "wave"            ))
2186                                                 {
2187                                                         shader.deforms[deformindex].deform = Q3DEFORM_WAVE;
2188                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[3]);
2189                                                         for (i = 0;i < numparameters - 4 && i < Q3WAVEPARMS;i++)
2190                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+4]);
2191                                                 }
2192                                                 else if (!strcasecmp(parameter[1], "move"            ))
2193                                                 {
2194                                                         shader.deforms[deformindex].deform = Q3DEFORM_MOVE;
2195                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[5]);
2196                                                         for (i = 0;i < numparameters - 6 && i < Q3WAVEPARMS;i++)
2197                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+6]);
2198                                                 }
2199                                         }
2200                                 }
2201                         }
2202                         // hide this shader if a cvar said it should be killed
2203                         if (shader.dpshaderkill)
2204                                 shader.numlayers = 0;
2205                         // fix up multiple reflection types
2206                         if(shader.textureflags & Q3TEXTUREFLAG_WATERSHADER)
2207                                 shader.textureflags &= ~(Q3TEXTUREFLAG_REFRACTION | Q3TEXTUREFLAG_REFLECTION | Q3TEXTUREFLAG_CAMERA);
2208
2209                         Q3Shader_AddToHash (&shader);
2210                 }
2211                 Mem_Free(f);
2212         }
2213         FS_FreeSearch(search);
2214         // free custinfoparm values
2215         for (j = 0; j < numcustsurfaceflags; j++)
2216                 Mem_Free(custsurfaceparmnames[j]);
2217 }
2218
2219 shader_t *Mod_LookupQ3Shader(const char *name)
2220 {
2221         unsigned short hash;
2222         q3shader_hash_entry_t* entry;
2223         if (!q3shaders_mem)
2224                 Mod_LoadQ3Shaders();
2225         hash = CRC_Block_CaseInsensitive ((const unsigned char *)name, strlen (name));
2226         entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
2227         while (entry != NULL)
2228         {
2229                 if (strcasecmp (entry->shader.name, name) == 0)
2230                         return &entry->shader;
2231                 entry = entry->chain;
2232         }
2233         return NULL;
2234 }
2235
2236 texture_shaderpass_t *Mod_CreateShaderPass(mempool_t *mempool, skinframe_t *skinframe)
2237 {
2238         texture_shaderpass_t *shaderpass = (texture_shaderpass_t *)Mem_Alloc(mempool, sizeof(*shaderpass));
2239         shaderpass->framerate = 0.0f;
2240         shaderpass->numframes = 1;
2241         shaderpass->blendfunc[0] = GL_ONE;
2242         shaderpass->blendfunc[1] = GL_ZERO;
2243         shaderpass->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
2244         shaderpass->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
2245         shaderpass->alphatest = false;
2246         shaderpass->tcgen.tcgen = Q3TCGEN_TEXTURE;
2247         shaderpass->skinframes[0] = skinframe;
2248         return shaderpass;
2249 }
2250
2251 texture_shaderpass_t *Mod_CreateShaderPassFromQ3ShaderLayer(mempool_t *mempool, const char *modelname, q3shaderinfo_layer_t *layer, int layerindex, int texflags, const char *texturename)
2252 {
2253         int j;
2254         texture_shaderpass_t *shaderpass = (texture_shaderpass_t *)Mem_Alloc(mempool, sizeof(*shaderpass));
2255         shaderpass->alphatest = layer->alphatest != 0;
2256         shaderpass->framerate = layer->framerate;
2257         shaderpass->numframes = layer->numframes;
2258         shaderpass->blendfunc[0] = layer->blendfunc[0];
2259         shaderpass->blendfunc[1] = layer->blendfunc[1];
2260         shaderpass->rgbgen = layer->rgbgen;
2261         shaderpass->alphagen = layer->alphagen;
2262         shaderpass->tcgen = layer->tcgen;
2263         for (j = 0; j < Q3MAXTCMODS && layer->tcmods[j].tcmod != Q3TCMOD_NONE; j++)
2264                 shaderpass->tcmods[j] = layer->tcmods[j];
2265         for (j = 0; j < layer->numframes; j++)
2266                 shaderpass->skinframes[j] = R_SkinFrame_LoadExternal(layer->texturename[j], texflags, false, true);
2267         return shaderpass;
2268 }
2269
2270 qbool Mod_LoadTextureFromQ3Shader(mempool_t *mempool, const char *modelname, texture_t *texture, const char *name, qbool warnmissing, qbool fallback, int defaulttexflags, int defaultmaterialflags)
2271 {
2272         int texflagsmask, texflagsor;
2273         qbool success = true;
2274         shader_t *shader;
2275         if (!name)
2276                 name = "";
2277         dp_strlcpy(texture->name, name, sizeof(texture->name));
2278         texture->basealpha = 1.0f;
2279         shader = name[0] ? Mod_LookupQ3Shader(name) : NULL;
2280
2281         // allow disabling of picmip or compression by defaulttexflags
2282         texflagsmask = ~0;
2283         if(!(defaulttexflags & TEXF_PICMIP))
2284                 texflagsmask &= ~TEXF_PICMIP;
2285         if(!(defaulttexflags & TEXF_COMPRESS))
2286                 texflagsmask &= ~TEXF_COMPRESS;
2287         texflagsor = 0;
2288         if(defaulttexflags & TEXF_ISWORLD)
2289                 texflagsor |= TEXF_ISWORLD;
2290         if(defaulttexflags & TEXF_ISSPRITE)
2291                 texflagsor |= TEXF_ISSPRITE;
2292         // unless later loaded from the shader
2293         texture->offsetmapping = (mod_noshader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
2294         texture->offsetscale = 1;
2295         texture->offsetbias = 0;
2296         texture->specularscalemod = 1;
2297         texture->specularpowermod = 1;
2298         texture->rtlightambient = 0;
2299         texture->transparentsort = TRANSPARENTSORT_DISTANCE;
2300         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
2301         // JUST GREP FOR "specularscalemod = 1".
2302
2303         if (shader)
2304         {
2305                 if (developer_loading.integer)
2306                         Con_Printf("%s: loaded shader for %s\n", modelname, name);
2307
2308                 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
2309                 {
2310                         texture->basematerialflags = MATERIALFLAG_SKY;
2311                         if (shader->skyboxname[0] && loadmodel)
2312                         {
2313                                 // quake3 seems to append a _ to the skybox name, so this must do so as well
2314                                 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
2315                         }
2316                 }
2317                 else if ((texture->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
2318                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2319                 else
2320                         texture->basematerialflags = MATERIALFLAG_WALL;
2321
2322                 if (shader->layers[0].alphatest)
2323                         texture->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
2324                 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
2325                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
2326                 if (shader->textureflags & Q3TEXTUREFLAG_POLYGONOFFSET)
2327                 {
2328                         texture->biaspolygonoffset += shader->biaspolygonoffset;
2329                         texture->biaspolygonfactor += shader->biaspolygonfactor;
2330                 }
2331                 if (shader->textureflags & Q3TEXTUREFLAG_REFRACTION)
2332                         texture->basematerialflags |= MATERIALFLAG_REFRACTION;
2333                 if (shader->textureflags & Q3TEXTUREFLAG_REFLECTION)
2334                         texture->basematerialflags |= MATERIALFLAG_REFLECTION;
2335                 if (shader->textureflags & Q3TEXTUREFLAG_WATERSHADER)
2336                         texture->basematerialflags |= MATERIALFLAG_WATERSHADER;
2337                 if (shader->textureflags & Q3TEXTUREFLAG_CAMERA)
2338                         texture->basematerialflags |= MATERIALFLAG_CAMERA;
2339                 texture->customblendfunc[0] = GL_ONE;
2340                 texture->customblendfunc[1] = GL_ZERO;
2341                 texture->transparentsort = shader->transparentsort;
2342                 if (shader->numlayers > 0)
2343                 {
2344                         texture->customblendfunc[0] = shader->layers[0].blendfunc[0];
2345                         texture->customblendfunc[1] = shader->layers[0].blendfunc[1];
2346 /*
2347 Q3 shader blendfuncs actually used in the game (* = supported by DP)
2348 * additive               GL_ONE GL_ONE
2349 additive weird         GL_ONE GL_SRC_ALPHA
2350 additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
2351 * alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
2352 alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
2353 brighten               GL_DST_COLOR GL_ONE
2354 brighten               GL_ONE GL_SRC_COLOR
2355 brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
2356 brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
2357 * modulate               GL_DST_COLOR GL_ZERO
2358 * modulate               GL_ZERO GL_SRC_COLOR
2359 modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
2360 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
2361 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
2362 * modulate x2            GL_DST_COLOR GL_SRC_COLOR
2363 * no blend               GL_ONE GL_ZERO
2364 nothing                GL_ZERO GL_ONE
2365 */
2366                         // if not opaque, figure out what blendfunc to use
2367                         if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
2368                         {
2369                                 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
2370                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2371                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
2372                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2373                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2374                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2375                                 else
2376                                         texture->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2377                         }
2378                 }
2379                 if (!shader->lighting)
2380                         texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
2381
2382                 // here be dragons: convert quake3 shaders to material
2383                 if (shader->numlayers > 0)
2384                 {
2385                         int i;
2386                         int terrainbackgroundlayer = -1;
2387                         int lightmaplayer = -1;
2388                         int alphagenspecularlayer = -1;
2389                         int rgbgenvertexlayer = -1;
2390                         int rgbgendiffuselayer = -1;
2391                         int materiallayer = -1;
2392                         int endofprelayers = 0;
2393                         int firstpostlayer = 0;
2394                         int shaderpassindex = 0;
2395                         for (i = 0; i < shader->numlayers; i++)
2396                         {
2397                                 if (shader->layers[i].texturename != NULL && !strcasecmp(shader->layers[i].texturename[0], "$lightmap"))
2398                                         lightmaplayer = i;
2399                                 if (shader->layers[i].rgbgen.rgbgen == Q3RGBGEN_VERTEX)
2400                                         rgbgenvertexlayer = i;
2401                                 if (shader->layers[i].rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE)
2402                                         rgbgendiffuselayer = i;
2403                                 if (shader->layers[i].alphagen.alphagen == Q3ALPHAGEN_LIGHTINGSPECULAR)
2404                                         alphagenspecularlayer = i;
2405                         }
2406                         if (shader->numlayers >= 2
2407                          && shader->layers[1].alphagen.alphagen == Q3ALPHAGEN_VERTEX
2408                          && (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ZERO && !shader->layers[0].alphatest)
2409                          && ((shader->layers[1].blendfunc[0] == GL_SRC_ALPHA && shader->layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2410                                  || (shader->layers[1].blendfunc[0] == GL_ONE && shader->layers[1].blendfunc[1] == GL_ZERO && shader->layers[1].alphatest)))
2411                         {
2412                                 // terrain blend or certain other effects involving alphatest over a regular layer
2413                                 terrainbackgroundlayer = 0;
2414                                 materiallayer = 1;
2415                                 // terrain may be vertex lit (in which case both layers are rgbGen vertex) or lightmapped (in which ase the third layer is lightmap)
2416                                 firstpostlayer = lightmaplayer >= 0 ? lightmaplayer + 1 : materiallayer + 1;
2417                         }
2418                         else if (lightmaplayer == 0)
2419                         {
2420                                 // ordinary texture but with $lightmap before diffuse
2421                                 materiallayer = 1;
2422                                 firstpostlayer = lightmaplayer + 2;
2423                         }
2424                         else if (lightmaplayer >= 1)
2425                         {
2426                                 // ordinary texture - we don't properly apply lighting to the prelayers, but oh well...
2427                                 endofprelayers = lightmaplayer - 1;
2428                                 materiallayer = lightmaplayer - 1;
2429                                 firstpostlayer = lightmaplayer + 1;
2430                         }
2431                         else if (rgbgenvertexlayer >= 0)
2432                         {
2433                                 // map models with baked lighting
2434                                 materiallayer = rgbgenvertexlayer;
2435                                 endofprelayers = rgbgenvertexlayer;
2436                                 firstpostlayer = rgbgenvertexlayer + 1;
2437                                 // special case for rgbgen vertex if MATERIALFLAG_VERTEXCOLOR is expected on this material
2438                                 if (defaultmaterialflags & MATERIALFLAG_VERTEXCOLOR)
2439                                         texture->basematerialflags |= MATERIALFLAG_VERTEXCOLOR | MATERIALFLAG_ALPHAGEN_VERTEX;
2440                         }
2441                         else if (rgbgendiffuselayer >= 0)
2442                         {
2443                                 // entity models with dynamic lighting
2444                                 materiallayer = rgbgendiffuselayer;
2445                                 endofprelayers = rgbgendiffuselayer;
2446                                 firstpostlayer = rgbgendiffuselayer + 1;
2447                                 // player models often have specular as a pass after diffuse - we don't currently make use of that specular texture (would need to meld it into the skinframe)...
2448                                 if (alphagenspecularlayer >= 0)
2449                                         firstpostlayer = alphagenspecularlayer + 1;
2450                         }
2451                         else
2452                         {
2453                                 // special effects shaders - treat first as primary layer and do everything else as post
2454                                 endofprelayers = 0;
2455                                 materiallayer = 0;
2456                                 firstpostlayer = 1;
2457                         }
2458                         // convert the main material layer
2459                         // FIXME: if alphagenspecularlayer is used, we should pass a specular texture name to R_SkinFrame_LoadExternal and have it load that texture instead of the assumed name for _gloss texture
2460                         if (materiallayer >= 0)
2461                                 texture->materialshaderpass = texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[materiallayer], materiallayer, (shader->layers[materiallayer].dptexflags & texflagsmask) | texflagsor, texture->name);
2462                         // convert the terrain background blend layer (if any)
2463                         if (terrainbackgroundlayer >= 0)
2464                                 texture->backgroundshaderpass = texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[terrainbackgroundlayer], terrainbackgroundlayer, (shader->layers[terrainbackgroundlayer].dptexflags & texflagsmask) | texflagsor, texture->name);
2465                         // convert the prepass layers (if any)
2466                         texture->startpreshaderpass = shaderpassindex;
2467                         for (i = 0; i < endofprelayers; i++)
2468                                 texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[i], i, (shader->layers[i].dptexflags & texflagsmask) | texflagsor, texture->name);
2469                         texture->endpreshaderpass = shaderpassindex;
2470                         texture->startpostshaderpass = shaderpassindex;
2471                         // convert the postpass layers (if any)
2472                         for (i = firstpostlayer; i < shader->numlayers; i++)
2473                                 texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[i], i, (shader->layers[i].dptexflags & texflagsmask) | texflagsor, texture->name);
2474                         texture->startpostshaderpass = shaderpassindex;
2475                 }
2476
2477                 if (shader->dpshadow)
2478                         texture->basematerialflags &= ~MATERIALFLAG_NOSHADOW;
2479                 if (shader->dpnoshadow)
2480                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW;
2481                 if (shader->dpnortlight)
2482                         texture->basematerialflags |= MATERIALFLAG_NORTLIGHT;
2483                 if (shader->vertexalpha)
2484                         texture->basematerialflags |= MATERIALFLAG_ALPHAGEN_VERTEX;
2485                 memcpy(texture->deforms, shader->deforms, sizeof(texture->deforms));
2486                 texture->reflectmin = shader->reflectmin;
2487                 texture->reflectmax = shader->reflectmax;
2488                 texture->refractfactor = shader->refractfactor;
2489                 Vector4Copy(shader->refractcolor4f, texture->refractcolor4f);
2490                 texture->reflectfactor = shader->reflectfactor;
2491                 Vector4Copy(shader->reflectcolor4f, texture->reflectcolor4f);
2492                 texture->r_water_wateralpha = shader->r_water_wateralpha;
2493                 Vector2Copy(shader->r_water_waterscroll, texture->r_water_waterscroll);
2494                 texture->offsetmapping = shader->offsetmapping;
2495                 texture->offsetscale = shader->offsetscale;
2496                 texture->offsetbias = shader->offsetbias;
2497                 texture->specularscalemod = shader->specularscalemod;
2498                 texture->specularpowermod = shader->specularpowermod;
2499                 texture->rtlightambient = shader->rtlightambient;
2500                 texture->refractive_index = mod_q3shader_default_refractive_index.value;
2501                 if (shader->dpreflectcube[0])
2502                         texture->reflectcubetexture = R_GetCubemap(shader->dpreflectcube);
2503
2504                 // set up default supercontents (on q3bsp this is overridden by the q3bsp loader)
2505                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2506                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents  = SUPERCONTENTS_LAVA         ;
2507                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents  = SUPERCONTENTS_SLIME        ;
2508                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents  = SUPERCONTENTS_WATER        ;
2509                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents  = 0                          ;
2510                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents  = SUPERCONTENTS_PLAYERCLIP   ;
2511                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents  = SUPERCONTENTS_MONSTERCLIP  ;
2512                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents  = SUPERCONTENTS_SKY          ;
2513
2514         //      if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->supercontents |= SUPERCONTENTS_ALPHASHADOW  ;
2515         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->supercontents |= SUPERCONTENTS_AREAPORTAL   ;
2516         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->supercontents |= SUPERCONTENTS_CLUSTERPORTAL;
2517         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->supercontents |= SUPERCONTENTS_DETAIL       ;
2518                 if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->supercontents |= SUPERCONTENTS_DONOTENTER   ;
2519         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->supercontents |= SUPERCONTENTS_FOG          ;
2520                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents |= SUPERCONTENTS_LAVA         ;
2521         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->supercontents |= SUPERCONTENTS_LIGHTFILTER  ;
2522         //      if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->supercontents |= SUPERCONTENTS_METALSTEPS   ;
2523         //      if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->supercontents |= SUPERCONTENTS_NODAMAGE     ;
2524         //      if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->supercontents |= SUPERCONTENTS_NODLIGHT     ;
2525         //      if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->supercontents |= SUPERCONTENTS_NODRAW       ;
2526                 if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->supercontents |= SUPERCONTENTS_NODROP       ;
2527         //      if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->supercontents |= SUPERCONTENTS_NOIMPACT     ;
2528         //      if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->supercontents |= SUPERCONTENTS_NOLIGHTMAP   ;
2529         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->supercontents |= SUPERCONTENTS_NOMARKS      ;
2530         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->supercontents |= SUPERCONTENTS_NOMIPMAPS    ;
2531                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents &=~SUPERCONTENTS_SOLID        ;
2532         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->supercontents |= SUPERCONTENTS_ORIGIN       ;
2533                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents |= SUPERCONTENTS_PLAYERCLIP   ;
2534                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents |= SUPERCONTENTS_SKY          ;
2535         //      if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->supercontents |= SUPERCONTENTS_SLICK        ;
2536                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents |= SUPERCONTENTS_SLIME        ;
2537         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->supercontents |= SUPERCONTENTS_STRUCTURAL   ;
2538         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->supercontents |= SUPERCONTENTS_TRANS        ;
2539                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents |= SUPERCONTENTS_WATER        ;
2540         //      if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->supercontents |= SUPERCONTENTS_POINTLIGHT   ;
2541         //      if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->supercontents |= SUPERCONTENTS_HINT         ;
2542         //      if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->supercontents |= SUPERCONTENTS_DUST         ;
2543                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents |= SUPERCONTENTS_BOTCLIP      | SUPERCONTENTS_MONSTERCLIP;
2544         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->supercontents |= SUPERCONTENTS_LIGHTGRID    ;
2545         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->supercontents |= SUPERCONTENTS_ANTIPORTAL   ;
2546
2547                 texture->surfaceflags = shader->surfaceflags;
2548                 if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->surfaceflags |= Q3SURFACEFLAG_ALPHASHADOW  ;
2549         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_AREAPORTAL   ;
2550         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->surfaceflags |= Q3SURFACEFLAG_CLUSTERPORTAL;
2551         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->surfaceflags |= Q3SURFACEFLAG_DETAIL       ;
2552         //      if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->surfaceflags |= Q3SURFACEFLAG_DONOTENTER   ;
2553         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->surfaceflags |= Q3SURFACEFLAG_FOG          ;
2554         //      if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->surfaceflags |= Q3SURFACEFLAG_LAVA         ;
2555                 if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTFILTER  ;
2556                 if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->surfaceflags |= Q3SURFACEFLAG_METALSTEPS   ;
2557                 if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->surfaceflags |= Q3SURFACEFLAG_NODAMAGE     ;
2558                 if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->surfaceflags |= Q3SURFACEFLAG_NODLIGHT     ;
2559                 if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->surfaceflags |= Q3SURFACEFLAG_NODRAW       ;
2560         //      if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->surfaceflags |= Q3SURFACEFLAG_NODROP       ;
2561                 if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->surfaceflags |= Q3SURFACEFLAG_NOIMPACT     ;
2562                 if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->surfaceflags |= Q3SURFACEFLAG_NOLIGHTMAP   ;
2563                 if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->surfaceflags |= Q3SURFACEFLAG_NOMARKS      ;
2564         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->surfaceflags |= Q3SURFACEFLAG_NOMIPMAPS    ;
2565                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->surfaceflags |= Q3SURFACEFLAG_NONSOLID     ;
2566         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->surfaceflags |= Q3SURFACEFLAG_ORIGIN       ;
2567         //      if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->surfaceflags |= Q3SURFACEFLAG_PLAYERCLIP   ;
2568                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->surfaceflags |= Q3SURFACEFLAG_SKY          ;
2569                 if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->surfaceflags |= Q3SURFACEFLAG_SLICK        ;
2570         //      if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->surfaceflags |= Q3SURFACEFLAG_SLIME        ;
2571         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->surfaceflags |= Q3SURFACEFLAG_STRUCTURAL   ;
2572         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->surfaceflags |= Q3SURFACEFLAG_TRANS        ;
2573         //      if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->surfaceflags |= Q3SURFACEFLAG_WATER        ;
2574                 if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->surfaceflags |= Q3SURFACEFLAG_POINTLIGHT   ;
2575                 if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->surfaceflags |= Q3SURFACEFLAG_HINT         ;
2576                 if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->surfaceflags |= Q3SURFACEFLAG_DUST         ;
2577         //      if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->surfaceflags |= Q3SURFACEFLAG_BOTCLIP      ;
2578         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTGRID    ;
2579         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_ANTIPORTAL   ;
2580
2581                 if (shader->dpmeshcollisions)
2582                         texture->basematerialflags |= MATERIALFLAG_MESHCOLLISIONS;
2583                 if (shader->dpshaderkill && developer_extra.integer)
2584                         Con_DPrintf("^1%s:^7 killing shader ^3\"%s\" because of cvar\n", modelname, name);
2585         }
2586         else if (!strcmp(texture->name, "noshader") || !texture->name[0])
2587         {
2588                 if (developer_extra.integer)
2589                         Con_DPrintf("^1%s:^7 using fallback noshader material for ^3\"%s\"\n", modelname, name);
2590                 texture->basematerialflags = defaultmaterialflags;
2591                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2592         }
2593         else if (!strcmp(texture->name, "common/nodraw") || !strcmp(texture->name, "textures/common/nodraw"))
2594         {
2595                 if (developer_extra.integer)
2596                         Con_DPrintf("^1%s:^7 using fallback nodraw material for ^3\"%s\"\n", modelname, name);
2597                 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2598                 texture->supercontents = SUPERCONTENTS_SOLID;
2599         }
2600         else
2601         {
2602                 if (developer_extra.integer)
2603                         Con_DPrintf("^1%s:^7 No shader found for texture ^3\"%s\"\n", modelname, texture->name);
2604                 if (texture->surfaceflags & Q3SURFACEFLAG_NODRAW)
2605                 {
2606                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2607                         texture->supercontents = SUPERCONTENTS_SOLID;
2608                 }
2609                 else if (texture->surfaceflags & Q3SURFACEFLAG_SKY)
2610                 {
2611                         texture->basematerialflags = MATERIALFLAG_SKY;
2612                         texture->supercontents = SUPERCONTENTS_SKY;
2613                 }
2614                 else
2615                 {
2616                         texture->basematerialflags = defaultmaterialflags;
2617                         texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2618                 }
2619                 if(cls.state == ca_dedicated)
2620                 {
2621                         texture->materialshaderpass = NULL;
2622                         success = false;
2623                 }
2624                 else
2625                 {
2626                         skinframe_t *skinframe = R_SkinFrame_LoadExternal(texture->name, defaulttexflags, false, fallback);
2627                         if (skinframe)
2628                         {
2629                                 texture->materialshaderpass = texture->shaderpasses[0] = Mod_CreateShaderPass(mempool, skinframe);
2630                                 if (texture->materialshaderpass->skinframes[0]->hasalpha)
2631                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2632                                 if (texture->q2contents)
2633                                         texture->supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(texture->q2contents);
2634                         }
2635                         else
2636                                 success = false;
2637                         if (!success && warnmissing)
2638                                 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"\n", modelname, texture->name);
2639                 }
2640         }
2641         // init the animation variables
2642         texture->currentframe = texture;
2643         texture->currentmaterialflags = texture->basematerialflags;
2644         if (!texture->materialshaderpass)
2645                 texture->materialshaderpass = texture->shaderpasses[0] = Mod_CreateShaderPass(mempool, R_SkinFrame_LoadMissing());
2646         if (!texture->materialshaderpass->skinframes[0])
2647                 texture->materialshaderpass->skinframes[0] = R_SkinFrame_LoadMissing();
2648         texture->currentskinframe = texture->materialshaderpass ? texture->materialshaderpass->skinframes[0] : NULL;
2649         texture->backgroundcurrentskinframe = texture->backgroundshaderpass ? texture->backgroundshaderpass->skinframes[0] : NULL;
2650         return success;
2651 }
2652
2653 void Mod_LoadCustomMaterial(mempool_t *mempool, texture_t *texture, const char *name, int supercontents, int materialflags, skinframe_t *skinframe)
2654 {
2655         if (!(materialflags & (MATERIALFLAG_WALL | MATERIALFLAG_SKY)))
2656                 Con_DPrintf("^1Custom texture ^3\"%s\" does not have MATERIALFLAG_WALL set\n", texture->name);
2657
2658         dp_strlcpy(texture->name, name, sizeof(texture->name));
2659         texture->basealpha = 1.0f;
2660         texture->basematerialflags = materialflags;
2661         texture->supercontents = supercontents;
2662
2663         texture->offsetmapping = (mod_noshader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
2664         texture->offsetscale = 1;
2665         texture->offsetbias = 0;
2666         texture->specularscalemod = 1;
2667         texture->specularpowermod = 1;
2668         texture->rtlightambient = 0;
2669         texture->transparentsort = TRANSPARENTSORT_DISTANCE;
2670         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
2671         // JUST GREP FOR "specularscalemod = 1".
2672
2673         if (developer_extra.integer)
2674                 Con_DPrintf("^1Custom texture ^3\"%s\"\n", texture->name);
2675         if (skinframe)
2676                 texture->materialshaderpass = texture->shaderpasses[0] = Mod_CreateShaderPass(mempool, skinframe);
2677
2678         // init the animation variables
2679         texture->currentmaterialflags = texture->basematerialflags;
2680         texture->currentframe = texture;
2681         texture->currentskinframe = skinframe;
2682         texture->backgroundcurrentskinframe = NULL;
2683 }
2684
2685 void Mod_UnloadCustomMaterial(texture_t *texture, qbool purgeskins)
2686 {
2687         long unsigned int i, j;
2688         for (i = 0; i < sizeof(texture->shaderpasses) / sizeof(texture->shaderpasses[0]); i++)
2689         {
2690                 if (texture->shaderpasses[i])
2691                 {
2692                         if (purgeskins)
2693                                 for (j = 0; j < sizeof(texture->shaderpasses[i]->skinframes) / sizeof(skinframe_t *);j++)
2694                                         if (texture->shaderpasses[i]->skinframes[j] && texture->shaderpasses[i]->skinframes[j]->base)
2695                                                 R_SkinFrame_PurgeSkinFrame(texture->shaderpasses[i]->skinframes[j]);
2696                         Mem_Free(texture->shaderpasses[i]);
2697                         texture->shaderpasses[i] = NULL;
2698                 }
2699         }
2700         texture->materialshaderpass = NULL;
2701         texture->currentskinframe = NULL;
2702         texture->backgroundcurrentskinframe = NULL;
2703 }
2704
2705 skinfile_t *Mod_LoadSkinFiles(void)
2706 {
2707         int i, words, line, wordsoverflow;
2708         char *text;
2709         const char *data;
2710         skinfile_t *skinfile = NULL, *first = NULL;
2711         skinfileitem_t *skinfileitem;
2712         char word[10][MAX_QPATH];
2713         char vabuf[1024];
2714
2715 /*
2716 sample file:
2717 U_bodyBox,models/players/Legoman/BikerA2.tga
2718 U_RArm,models/players/Legoman/BikerA1.tga
2719 U_LArm,models/players/Legoman/BikerA1.tga
2720 U_armor,common/nodraw
2721 U_sword,common/nodraw
2722 U_shield,common/nodraw
2723 U_homb,common/nodraw
2724 U_backpack,common/nodraw
2725 U_colcha,common/nodraw
2726 tag_head,
2727 tag_weapon,
2728 tag_torso,
2729 */
2730         memset(word, 0, sizeof(word));
2731         for (i = 0;i < 256 && (data = text = (char *)FS_LoadFile(va(vabuf, sizeof(vabuf), "%s_%i.skin", loadmodel->name, i), tempmempool, true, NULL));i++)
2732         {
2733                 // If it's the first file we parse
2734                 if (skinfile == NULL)
2735                 {
2736                         skinfile = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2737                         first = skinfile;
2738                 }
2739                 else
2740                 {
2741                         skinfile->next = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2742                         skinfile = skinfile->next;
2743                 }
2744                 skinfile->next = NULL;
2745
2746                 for(line = 0;;line++)
2747                 {
2748                         // parse line
2749                         if (!COM_ParseToken_QuakeC(&data, true))
2750                                 break;
2751                         if (!strcmp(com_token, "\n"))
2752                                 continue;
2753                         words = 0;
2754                         wordsoverflow = false;
2755                         do
2756                         {
2757                                 if (words < 10)
2758                                         dp_strlcpy(word[words++], com_token, sizeof (word[0]));
2759                                 else
2760                                         wordsoverflow = true;
2761                         }
2762                         while (COM_ParseToken_QuakeC(&data, true) && strcmp(com_token, "\n"));
2763                         if (wordsoverflow)
2764                         {
2765                                 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);
2766                                 continue;
2767                         }
2768                         // words is always >= 1
2769                         if (!strcmp(word[0], "replace"))
2770                         {
2771                                 if (words == 3)
2772                                 {
2773                                         if (developer_loading.integer)
2774                                                 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
2775                                         skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2776                                         skinfileitem->next = skinfile->items;
2777                                         skinfile->items = skinfileitem;
2778                                         dp_strlcpy (skinfileitem->name, word[1], sizeof (skinfileitem->name));
2779                                         dp_strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2780                                 }
2781                                 else
2782                                         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]);
2783                         }
2784                         else if (words >= 2 && !strncmp(word[0], "tag_", 4))
2785                         {
2786                                 // tag name, like "tag_weapon,"
2787                                 // not used for anything (not even in Quake3)
2788                         }
2789                         else if (words >= 2 && !strcmp(word[1], ","))
2790                         {
2791                                 // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
2792                                 if (developer_loading.integer)
2793                                         Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
2794                                 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2795                                 skinfileitem->next = skinfile->items;
2796                                 skinfile->items = skinfileitem;
2797                                 dp_strlcpy (skinfileitem->name, word[0], sizeof (skinfileitem->name));
2798                                 dp_strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2799                         }
2800                         else
2801                                 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);
2802                 }
2803                 Mem_Free(text);
2804         }
2805         if (i)
2806                 loadmodel->numskins = i;
2807         return first;
2808 }
2809
2810 void Mod_FreeSkinFiles(skinfile_t *skinfile)
2811 {
2812         skinfile_t *next;
2813         skinfileitem_t *skinfileitem, *nextitem;
2814         for (;skinfile;skinfile = next)
2815         {
2816                 next = skinfile->next;
2817                 for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
2818                 {
2819                         nextitem = skinfileitem->next;
2820                         Mem_Free(skinfileitem);
2821                 }
2822                 Mem_Free(skinfile);
2823         }
2824 }
2825
2826 int Mod_CountSkinFiles(skinfile_t *skinfile)
2827 {
2828         int i;
2829         for (i = 0;skinfile;skinfile = skinfile->next, i++);
2830         return i;
2831 }
2832
2833 void Mod_SnapVertices(int numcomponents, int numvertices, float *vertices, float snap)
2834 {
2835         int i;
2836         double isnap = 1.0 / snap;
2837         for (i = 0;i < numvertices*numcomponents;i++)
2838                 vertices[i] = floor(vertices[i]*isnap)*snap;
2839 }
2840
2841 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
2842 {
2843         int i, outtriangles;
2844         float edgedir1[3], edgedir2[3], temp[3];
2845         // a degenerate triangle is one with no width (thickness, surface area)
2846         // these are characterized by having all 3 points colinear (along a line)
2847         // or having two points identical
2848         // the simplest check is to calculate the triangle's area
2849         for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
2850         {
2851                 // calculate first edge
2852                 VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir1);
2853                 VectorSubtract(vertex3f + inelement3i[2] * 3, vertex3f + inelement3i[0] * 3, edgedir2);
2854                 CrossProduct(edgedir1, edgedir2, temp);
2855                 if (VectorLength2(temp) < 0.001f)
2856                         continue; // degenerate triangle (no area)
2857                 // valid triangle (has area)
2858                 VectorCopy(inelement3i, outelement3i);
2859                 outelement3i += 3;
2860                 outtriangles++;
2861         }
2862         return outtriangles;
2863 }
2864
2865 void Mod_VertexRangeFromElements(int numelements, const int *elements, int *firstvertexpointer, int *lastvertexpointer)
2866 {
2867         int i, e;
2868         int firstvertex, lastvertex;
2869         if (numelements > 0 && elements)
2870         {
2871                 firstvertex = lastvertex = elements[0];
2872                 for (i = 1;i < numelements;i++)
2873                 {
2874                         e = elements[i];
2875                         firstvertex = min(firstvertex, e);
2876                         lastvertex = max(lastvertex, e);
2877                 }
2878         }
2879         else
2880                 firstvertex = lastvertex = 0;
2881         if (firstvertexpointer)
2882                 *firstvertexpointer = firstvertex;
2883         if (lastvertexpointer)
2884                 *lastvertexpointer = lastvertex;
2885 }
2886
2887 void Mod_SetDrawSkyAndWater(model_t* mod)
2888 {
2889         int j;
2890         uint64_t basematerialflags = 0;
2891         // by default assume there is no sky or water used in this model
2892         mod->DrawSky = NULL;
2893         mod->DrawAddWaterPlanes = NULL;
2894         // combine all basematerialflags observed in the submodelsurfaces range, then check for special flags
2895         for (j = mod->submodelsurfaces_start; j < mod->submodelsurfaces_end; j++)
2896                 if (mod->data_surfaces[j].texture)
2897                         basematerialflags |= mod->data_surfaces[j].texture->basematerialflags;
2898         if (basematerialflags & MATERIALFLAG_SKY)
2899                 mod->DrawSky = R_Mod_DrawSky;
2900         if (basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
2901                 mod->DrawAddWaterPlanes = R_Mod_DrawAddWaterPlanes;
2902 }
2903
2904 typedef struct Mod_MakeSortedSurfaces_qsortsurface_s
2905 {
2906         int surfaceindex;
2907         q3deffect_t* effect;
2908         texture_t* texture;
2909         rtexture_t* lightmaptexture;
2910 }
2911 Mod_MakeSortedSurfaces_qsortsurface_t;
2912
2913 static int Mod_MakeSortedSurfaces_qsortfunc(const void *a, const void *b)
2914 {
2915         const Mod_MakeSortedSurfaces_qsortsurface_t* l = (Mod_MakeSortedSurfaces_qsortsurface_t*)a;
2916         const Mod_MakeSortedSurfaces_qsortsurface_t* r = (Mod_MakeSortedSurfaces_qsortsurface_t*)b;
2917         if (l->effect < r->effect)
2918                 return -1;
2919         if (l->effect > r->effect)
2920                 return 1;
2921         if (l->texture < r->texture)
2922                 return -1;
2923         if (l->texture > r->texture)
2924                 return 1;
2925         if (l->lightmaptexture < r->lightmaptexture)
2926                 return -1;
2927         if (l->lightmaptexture > r->lightmaptexture)
2928                 return 1;
2929         if (l->surfaceindex < r->surfaceindex)
2930                 return -1;
2931         if (l->surfaceindex > r->surfaceindex)
2932                 return 1;
2933         return 0;
2934 }
2935
2936 void Mod_MakeSortedSurfaces(model_t *mod)
2937 {
2938         // make an optimal set of texture-sorted batches to draw...
2939         int j, k;
2940         Mod_MakeSortedSurfaces_qsortsurface_t *info;
2941
2942         if(cls.state == ca_dedicated)
2943                 return;
2944
2945         info = (Mod_MakeSortedSurfaces_qsortsurface_t*)Mem_Alloc(loadmodel->mempool, mod->num_surfaces * sizeof(*info));
2946         if (!mod->modelsurfaces_sorted)
2947                 mod->modelsurfaces_sorted = (int *) Mem_Alloc(loadmodel->mempool, mod->num_surfaces * sizeof(*mod->modelsurfaces_sorted));
2948         // the goal is to sort by submodel (can't change which submodel a surface belongs to), and then by effects and textures
2949         for (j = 0; j < mod->num_surfaces; j++)
2950         {
2951                 info[j].surfaceindex = j;
2952                 info[j].effect = mod->data_surfaces[j].effect;
2953                 info[j].texture = mod->data_surfaces[j].texture;
2954                 info[j].lightmaptexture = mod->data_surfaces[j].lightmaptexture;
2955         }
2956         for (k = 0; k < mod->brush.numsubmodels; k++)
2957                 if (mod->brush.submodels[k]->submodelsurfaces_end > mod->brush.submodels[k]->submodelsurfaces_start + 1)
2958                         qsort(info + mod->brush.submodels[k]->submodelsurfaces_start, (size_t)mod->brush.submodels[k]->submodelsurfaces_end - mod->brush.submodels[k]->submodelsurfaces_start, sizeof(*info), Mod_MakeSortedSurfaces_qsortfunc);
2959         for (j = 0; j < mod->num_surfaces; j++)
2960                 mod->modelsurfaces_sorted[j] = info[j].surfaceindex;
2961         Mem_Free(info);
2962 }
2963
2964 void Mod_BuildVBOs(void)
2965 {
2966         if(cls.state == ca_dedicated)
2967                 return;
2968
2969         if (!loadmodel->surfmesh.num_vertices)
2970                 return;
2971
2972         if (gl_paranoid.integer && loadmodel->surfmesh.data_element3s && loadmodel->surfmesh.data_element3i)
2973         {
2974                 int i;
2975                 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2976                 {
2977                         if (loadmodel->surfmesh.data_element3s[i] != loadmodel->surfmesh.data_element3i[i])
2978                         {
2979                                 Con_Printf("Mod_BuildVBOs: element %u is incorrect (%u should be %u)\n", i, loadmodel->surfmesh.data_element3s[i], loadmodel->surfmesh.data_element3i[i]);
2980                                 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2981                         }
2982                 }
2983         }
2984
2985         // upload short indices as a buffer
2986         if (loadmodel->surfmesh.data_element3s && !loadmodel->surfmesh.data_element3s_indexbuffer)
2987                 loadmodel->surfmesh.data_element3s_indexbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_element3s, loadmodel->surfmesh.num_triangles * sizeof(short[3]), loadmodel->name, true, false, false, true);
2988
2989         // upload int indices as a buffer
2990         if (loadmodel->surfmesh.data_element3i && !loadmodel->surfmesh.data_element3i_indexbuffer && !loadmodel->surfmesh.data_element3s)
2991                 loadmodel->surfmesh.data_element3i_indexbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles * sizeof(int[3]), loadmodel->name, true, false, false, false);
2992
2993         // only build a vbo if one has not already been created (this is important for brush models which load specially)
2994         // we put several vertex data streams in the same buffer
2995         if (!loadmodel->surfmesh.data_vertex3f_vertexbuffer)
2996         {
2997                 int size;
2998                 unsigned char *mem;
2999                 size = 0;
3000                 loadmodel->surfmesh.data_vertex3f_bufferoffset           = size;if (loadmodel->surfmesh.data_vertex3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3001                 loadmodel->surfmesh.data_svector3f_bufferoffset          = size;if (loadmodel->surfmesh.data_svector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3002                 loadmodel->surfmesh.data_tvector3f_bufferoffset          = size;if (loadmodel->surfmesh.data_tvector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3003                 loadmodel->surfmesh.data_normal3f_bufferoffset           = size;if (loadmodel->surfmesh.data_normal3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3004                 loadmodel->surfmesh.data_texcoordtexture2f_bufferoffset  = size;if (loadmodel->surfmesh.data_texcoordtexture2f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
3005                 loadmodel->surfmesh.data_texcoordlightmap2f_bufferoffset = size;if (loadmodel->surfmesh.data_texcoordlightmap2f) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
3006                 loadmodel->surfmesh.data_lightmapcolor4f_bufferoffset    = size;if (loadmodel->surfmesh.data_lightmapcolor4f   ) size += loadmodel->surfmesh.num_vertices * sizeof(float[4]);
3007                 loadmodel->surfmesh.data_skeletalindex4ub_bufferoffset   = size;if (loadmodel->surfmesh.data_skeletalindex4ub  ) size += loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]);
3008                 loadmodel->surfmesh.data_skeletalweight4ub_bufferoffset  = size;if (loadmodel->surfmesh.data_skeletalweight4ub ) size += loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]);
3009                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
3010                 if (loadmodel->surfmesh.data_vertex3f          ) memcpy(mem + loadmodel->surfmesh.data_vertex3f_bufferoffset          , loadmodel->surfmesh.data_vertex3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3011                 if (loadmodel->surfmesh.data_svector3f         ) memcpy(mem + loadmodel->surfmesh.data_svector3f_bufferoffset         , loadmodel->surfmesh.data_svector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3012                 if (loadmodel->surfmesh.data_tvector3f         ) memcpy(mem + loadmodel->surfmesh.data_tvector3f_bufferoffset         , loadmodel->surfmesh.data_tvector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3013                 if (loadmodel->surfmesh.data_normal3f          ) memcpy(mem + loadmodel->surfmesh.data_normal3f_bufferoffset          , loadmodel->surfmesh.data_normal3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3014                 if (loadmodel->surfmesh.data_texcoordtexture2f ) memcpy(mem + loadmodel->surfmesh.data_texcoordtexture2f_bufferoffset , loadmodel->surfmesh.data_texcoordtexture2f , loadmodel->surfmesh.num_vertices * sizeof(float[2]));
3015                 if (loadmodel->surfmesh.data_texcoordlightmap2f) memcpy(mem + loadmodel->surfmesh.data_texcoordlightmap2f_bufferoffset, loadmodel->surfmesh.data_texcoordlightmap2f, loadmodel->surfmesh.num_vertices * sizeof(float[2]));
3016                 if (loadmodel->surfmesh.data_lightmapcolor4f   ) memcpy(mem + loadmodel->surfmesh.data_lightmapcolor4f_bufferoffset   , loadmodel->surfmesh.data_lightmapcolor4f   , loadmodel->surfmesh.num_vertices * sizeof(float[4]));
3017                 if (loadmodel->surfmesh.data_skeletalindex4ub  ) memcpy(mem + loadmodel->surfmesh.data_skeletalindex4ub_bufferoffset  , loadmodel->surfmesh.data_skeletalindex4ub  , loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]));
3018                 if (loadmodel->surfmesh.data_skeletalweight4ub ) memcpy(mem + loadmodel->surfmesh.data_skeletalweight4ub_bufferoffset , loadmodel->surfmesh.data_skeletalweight4ub , loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]));
3019                 loadmodel->surfmesh.data_vertex3f_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, loadmodel->name, false, false, false, false);
3020                 loadmodel->surfmesh.data_svector3f_vertexbuffer = loadmodel->surfmesh.data_svector3f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
3021                 loadmodel->surfmesh.data_tvector3f_vertexbuffer = loadmodel->surfmesh.data_tvector3f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
3022                 loadmodel->surfmesh.data_normal3f_vertexbuffer = loadmodel->surfmesh.data_normal3f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
3023                 loadmodel->surfmesh.data_texcoordtexture2f_vertexbuffer = loadmodel->surfmesh.data_texcoordtexture2f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
3024                 loadmodel->surfmesh.data_texcoordlightmap2f_vertexbuffer = loadmodel->surfmesh.data_texcoordlightmap2f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
3025                 loadmodel->surfmesh.data_lightmapcolor4f_vertexbuffer = loadmodel->surfmesh.data_lightmapcolor4f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
3026                 loadmodel->surfmesh.data_skeletalindex4ub_vertexbuffer = loadmodel->surfmesh.data_skeletalindex4ub ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
3027                 loadmodel->surfmesh.data_skeletalweight4ub_vertexbuffer = loadmodel->surfmesh.data_skeletalweight4ub ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
3028                 Mem_Free(mem);
3029         }
3030 }
3031
3032 extern cvar_t mod_obj_orientation;
3033 static void Mod_Decompile_OBJ(model_t *model, const char *filename, const char *mtlfilename, const char *originalfilename)
3034 {
3035         int submodelindex, vertexindex, surfaceindex, triangleindex, textureindex, countvertices = 0, countsurfaces = 0, countfaces = 0, counttextures = 0;
3036         int a, b, c;
3037         const char *texname;
3038         const int *e;
3039         const float *v, *vn, *vt;
3040         size_t l;
3041         size_t outbufferpos = 0;
3042         size_t outbuffermax = 0x100000;
3043         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3044         const msurface_t *surface;
3045         const int maxtextures = 256;
3046         char *texturenames = (char *) Z_Malloc(maxtextures * MAX_QPATH);
3047         model_t *submodel;
3048
3049         // construct the mtllib file
3050         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "# mtllib for %s exported by darkplaces engine\n", originalfilename);
3051         if (l > 0)
3052                 outbufferpos += l;
3053         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3054         {
3055                 countsurfaces++;
3056                 countvertices += surface->num_vertices;
3057                 countfaces += surface->num_triangles;
3058                 texname = (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default";
3059                 for (textureindex = 0;textureindex < counttextures;textureindex++)
3060                         if (!strcmp(texturenames + textureindex * MAX_QPATH, texname))
3061                                 break;
3062                 if (textureindex < counttextures)
3063                         continue; // already wrote this material entry
3064                 if (textureindex >= maxtextures)
3065                         continue; // just a precaution
3066                 textureindex = counttextures++;
3067                 dp_strlcpy(texturenames + textureindex * MAX_QPATH, texname, MAX_QPATH);
3068                 if (outbufferpos >= outbuffermax >> 1)
3069                 {
3070                         outbuffermax *= 2;
3071                         oldbuffer = outbuffer;
3072                         outbuffer = (char *) Z_Malloc(outbuffermax);
3073                         memcpy(outbuffer, oldbuffer, outbufferpos);
3074                         Z_Free(oldbuffer);
3075                 }
3076                 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");
3077                 if (l > 0)
3078                         outbufferpos += l;
3079         }
3080
3081         // write the mtllib file
3082         FS_WriteFile(mtlfilename, outbuffer, outbufferpos);
3083
3084         // construct the obj file
3085         outbufferpos = 0;
3086         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);
3087         if (l > 0)
3088                 outbufferpos += l;
3089
3090         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)
3091         {
3092                 if (outbufferpos >= outbuffermax >> 1)
3093                 {
3094                         outbuffermax *= 2;
3095                         oldbuffer = outbuffer;
3096                         outbuffer = (char *) Z_Malloc(outbuffermax);
3097                         memcpy(outbuffer, oldbuffer, outbufferpos);
3098                         Z_Free(oldbuffer);
3099                 }
3100                 if(mod_obj_orientation.integer)
3101                         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]);
3102                 else
3103                         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]);
3104                 if (l > 0)
3105                         outbufferpos += l;
3106         }
3107
3108         for (submodelindex = 0;submodelindex < max(1, model->brush.numsubmodels);submodelindex++)
3109         {
3110                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "o %i\n", submodelindex);
3111                 if (l > 0)
3112                         outbufferpos += l;
3113                 submodel = model->brush.numsubmodels ? model->brush.submodels[submodelindex] : model;
3114                 for (surfaceindex = submodel->submodelsurfaces_start;surfaceindex < submodel->submodelsurfaces_end;surfaceindex++)
3115                 {
3116                         surface = model->data_surfaces + surfaceindex;
3117                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "usemtl %s\n", (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default");
3118                         if (l > 0)
3119                                 outbufferpos += l;
3120                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3121                         {
3122                                 if (outbufferpos >= outbuffermax >> 1)
3123                                 {
3124                                         outbuffermax *= 2;
3125                                         oldbuffer = outbuffer;
3126                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3127                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3128                                         Z_Free(oldbuffer);
3129                                 }
3130                                 a = e[0]+1;
3131                                 b = e[1]+1;
3132                                 c = e[2]+1;
3133                                 if(mod_obj_orientation.integer)
3134                                         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);
3135                                 else
3136                                         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);
3137                                 if (l > 0)
3138                                         outbufferpos += l;
3139                         }
3140                 }
3141         }
3142
3143         // write the obj file
3144         FS_WriteFile(filename, outbuffer, outbufferpos);
3145
3146         // clean up
3147         Z_Free(outbuffer);
3148         Z_Free(texturenames);
3149
3150         // print some stats
3151         Con_Printf("Wrote %s (%i bytes, %i vertices, %i faces, %i surfaces with %i distinct textures)\n", filename, (int)outbufferpos, countvertices, countfaces, countsurfaces, counttextures);
3152 }
3153
3154 static void Mod_Decompile_SMD(model_t *model, const char *filename, int firstpose, int numposes, qbool writetriangles)
3155 {
3156         int countnodes = 0, counttriangles = 0, countframes = 0;
3157         int surfaceindex;
3158         int triangleindex;
3159         int transformindex;
3160         int poseindex;
3161         int cornerindex;
3162         const int *e;
3163         size_t l;
3164         size_t outbufferpos = 0;
3165         size_t outbuffermax = 0x100000;
3166         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3167         const msurface_t *surface;
3168         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "version 1\nnodes\n");
3169         if (l > 0)
3170                 outbufferpos += l;
3171         for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3172         {
3173                 if (outbufferpos >= outbuffermax >> 1)
3174                 {
3175                         outbuffermax *= 2;
3176                         oldbuffer = outbuffer;
3177                         outbuffer = (char *) Z_Malloc(outbuffermax);
3178                         memcpy(outbuffer, oldbuffer, outbufferpos);
3179                         Z_Free(oldbuffer);
3180                 }
3181                 countnodes++;
3182                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i \"%s\" %3i\n", transformindex, model->data_bones[transformindex].name, model->data_bones[transformindex].parent);
3183                 if (l > 0)
3184                         outbufferpos += l;
3185         }
3186         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\nskeleton\n");
3187         if (l > 0)
3188                 outbufferpos += l;
3189         for (poseindex = 0;poseindex < numposes;poseindex++)
3190         {
3191                 countframes++;
3192                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "time %i\n", poseindex);
3193                 if (l > 0)
3194                         outbufferpos += l;
3195                 for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3196                 {
3197                         float angles[3];
3198                         float mtest[4][3];
3199                         matrix4x4_t posematrix;
3200                         if (outbufferpos >= outbuffermax >> 1)
3201                         {
3202                                 outbuffermax *= 2;
3203                                 oldbuffer = outbuffer;
3204                                 outbuffer = (char *) Z_Malloc(outbuffermax);
3205                                 memcpy(outbuffer, oldbuffer, outbufferpos);
3206                                 Z_Free(oldbuffer);
3207                         }
3208
3209                         // strangely the smd angles are for a transposed matrix, so we
3210                         // have to generate a transposed matrix, then convert that...
3211                         Matrix4x4_FromBonePose7s(&posematrix, model->num_posescale, model->data_poses7s + 7*(model->num_bones * poseindex + transformindex));
3212                         Matrix4x4_ToArray12FloatGL(&posematrix, mtest);
3213                         AnglesFromVectors(angles, mtest[0], mtest[2], false);
3214                         if (angles[0] >= 180) angles[0] -= 360;
3215                         if (angles[1] >= 180) angles[1] -= 360;
3216                         if (angles[2] >= 180) angles[2] -= 360;
3217
3218 #if 0
3219 {
3220                         float a = DEG2RAD(angles[ROLL]);
3221                         float b = DEG2RAD(angles[PITCH]);
3222                         float c = DEG2RAD(angles[YAW]);
3223                         float cy, sy, cp, sp, cr, sr;
3224                         float test[4][3];
3225                         // smd matrix construction, for comparing
3226                         sy = sin(c);
3227                         cy = cos(c);
3228                         sp = sin(b);
3229                         cp = cos(b);
3230                         sr = sin(a);
3231                         cr = cos(a);
3232
3233                         test[0][0] = cp*cy;
3234                         test[0][1] = cp*sy;
3235                         test[0][2] = -sp;
3236                         test[1][0] = sr*sp*cy+cr*-sy;
3237                         test[1][1] = sr*sp*sy+cr*cy;
3238                         test[1][2] = sr*cp;
3239                         test[2][0] = (cr*sp*cy+-sr*-sy);
3240                         test[2][1] = (cr*sp*sy+-sr*cy);
3241                         test[2][2] = cr*cp;
3242                         test[3][0] = pose[9];
3243                         test[3][1] = pose[10];
3244                         test[3][2] = pose[11];
3245 }
3246 #endif
3247                         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]));
3248                         if (l > 0)
3249                                 outbufferpos += l;
3250                 }
3251         }
3252         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3253         if (l > 0)
3254                 outbufferpos += l;
3255         if (writetriangles)
3256         {
3257                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "triangles\n");
3258                 if (l > 0)
3259                         outbufferpos += l;
3260                 for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3261                 {
3262                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3263                         {
3264                                 counttriangles++;
3265                                 if (outbufferpos >= outbuffermax >> 1)
3266                                 {
3267                                         outbuffermax *= 2;
3268                                         oldbuffer = outbuffer;
3269                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3270                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3271                                         Z_Free(oldbuffer);
3272                                 }
3273                                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%s\n", surface->texture && surface->texture->name[0] ? surface->texture->name : "default.bmp");
3274                                 if (l > 0)
3275                                         outbufferpos += l;
3276                                 for (cornerindex = 0;cornerindex < 3;cornerindex++)
3277                                 {
3278                                         const int index = e[2-cornerindex];
3279                                         const float *v = model->surfmesh.data_vertex3f + index * 3;
3280                                         const float *vn = model->surfmesh.data_normal3f + index * 3;
3281                                         const float *vt = model->surfmesh.data_texcoordtexture2f + index * 2;
3282                                         const int b = model->surfmesh.blends[index];
3283                                         if (b < model->num_bones)
3284                                                 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]);
3285                                         else
3286                                         {
3287                                                 const blendweights_t *w = model->surfmesh.data_blendweights + b - model->num_bones;
3288                                                 const unsigned char *wi = w->index;
3289                                                 const unsigned char *wf = w->influence;
3290                                             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);
3291                                                 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);
3292                                                 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);
3293                                                 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]);
3294                                         }
3295                                         if (l > 0)
3296                                                 outbufferpos += l;
3297                                 }
3298                         }
3299                 }
3300                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3301                 if (l > 0)
3302                         outbufferpos += l;
3303         }
3304
3305         FS_WriteFile(filename, outbuffer, outbufferpos);
3306         Z_Free(outbuffer);
3307
3308         Con_Printf("Wrote %s (%i bytes, %i nodes, %i frames, %i triangles)\n", filename, (int)outbufferpos, countnodes, countframes, counttriangles);
3309 }
3310
3311 /*
3312 ================
3313 Mod_Decompile_f
3314
3315 decompiles a model to editable files
3316 ================
3317 */
3318 static void Mod_Decompile_f(cmd_state_t *cmd)
3319 {
3320         int i, j, k, l, first, count;
3321         model_t *mod;
3322         char inname[MAX_QPATH];
3323         char outname[MAX_QPATH];
3324         char mtlname[MAX_QPATH];
3325         char basename[MAX_QPATH];
3326         char animname[MAX_QPATH];
3327         char animname2[MAX_QPATH];
3328         char zymtextbuffer[16384];
3329         char dpmtextbuffer[16384];
3330         char framegroupstextbuffer[16384];
3331         int zymtextsize = 0;
3332         int dpmtextsize = 0;
3333         int framegroupstextsize = 0;
3334         char vabuf[1024];
3335
3336         if (Cmd_Argc(cmd) != 2)
3337         {
3338                 Con_Print("usage: modeldecompile <filename>\n");
3339                 return;
3340         }
3341
3342         dp_strlcpy(inname, Cmd_Argv(cmd, 1), sizeof(inname));
3343         FS_StripExtension(inname, basename, sizeof(basename));
3344
3345         mod = Mod_ForName(inname, false, true, inname[0] == '*' ? cl.model_name[1] : NULL);
3346         if (!mod)
3347         {
3348                 Con_Print("No such model\n");
3349                 return;
3350         }
3351         if (mod->brush.submodel)
3352         {
3353                 // if we're decompiling a submodel, be sure to give it a proper name based on its parent
3354                 FS_StripExtension(cl.model_name[1], outname, sizeof(outname));
3355                 dpsnprintf(basename, sizeof(basename), "%s/%s", outname, mod->name);
3356                 outname[0] = 0;
3357         }
3358         if (!mod->surfmesh.num_triangles)
3359         {
3360                 Con_Print("Empty model (or sprite)\n");
3361                 return;
3362         }
3363
3364         // export OBJ if possible (not on sprites)
3365         if (mod->surfmesh.num_triangles)
3366         {
3367                 dpsnprintf(outname, sizeof(outname), "%s_decompiled.obj", basename);
3368                 dpsnprintf(mtlname, sizeof(mtlname), "%s_decompiled.mtl", basename);
3369                 Mod_Decompile_OBJ(mod, outname, mtlname, inname);
3370         }
3371
3372         // export SMD if possible (only for skeletal models)
3373         if (mod->surfmesh.num_triangles && mod->num_bones)
3374         {
3375                 dpsnprintf(outname, sizeof(outname), "%s_decompiled/ref1.smd", basename);
3376                 Mod_Decompile_SMD(mod, outname, 0, 1, true);
3377                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "output out.zym\nscale 1\norigin 0 0 0\nmesh ref1.smd\n");
3378                 if (l > 0) zymtextsize += l;
3379                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "outputdir .\nmodel out\nscale 1\norigin 0 0 0\nscene ref1.smd\n");
3380                 if (l > 0) dpmtextsize += l;
3381                 for (i = 0;i < mod->numframes;i = j)
3382                 {
3383                         dp_strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3384                         first = mod->animscenes[i].firstframe;
3385                         if (mod->animscenes[i].framecount > 1)
3386                         {
3387                                 // framegroup anim
3388                                 count = mod->animscenes[i].framecount;
3389                                 j = i + 1;
3390                         }
3391                         else
3392                         {
3393                                 // individual frame
3394                                 // check for additional frames with same name
3395                                 for (l = 0, k = (int)strlen(animname);animname[l];l++)
3396                                         if(animname[l] < '0' || animname[l] > '9')
3397                                                 k = l + 1;
3398                                 if(k > 0 && animname[k-1] == '_')
3399                                         --k;
3400                                 animname[k] = 0;
3401                                 count = mod->num_poses - first;
3402                                 for (j = i + 1;j < mod->numframes;j++)
3403                                 {
3404                                         dp_strlcpy(animname2, mod->animscenes[j].name, sizeof(animname2));
3405                                         for (l = 0, k = (int)strlen(animname2);animname2[l];l++)
3406                                                 if(animname2[l] < '0' || animname2[l] > '9')
3407                                                         k = l + 1;
3408                                         if(k > 0 && animname[k-1] == '_')
3409                                                 --k;
3410                                         animname2[k] = 0;
3411                                         if (strcmp(animname2, animname) || mod->animscenes[j].framecount > 1)
3412                                         {
3413                                                 count = mod->animscenes[j].firstframe - first;
3414                                                 break;
3415                                         }
3416                                 }
3417                                 // if it's only one frame, use the original frame name
3418                                 if (j == i + 1)
3419                                         dp_strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3420
3421                         }
3422                         dpsnprintf(outname, sizeof(outname), "%s_decompiled/%s.smd", basename, animname);
3423                         Mod_Decompile_SMD(mod, outname, first, count, false);
3424                         if (zymtextsize < (int)sizeof(zymtextbuffer) - 100)
3425                         {
3426                                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3427                                 if (l > 0) zymtextsize += l;
3428                         }
3429                         if (dpmtextsize < (int)sizeof(dpmtextbuffer) - 100)
3430                         {
3431                                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3432                                 if (l > 0) dpmtextsize += l;
3433                         }
3434                         if (framegroupstextsize < (int)sizeof(framegroupstextbuffer) - 100)
3435                         {
3436                                 l = dpsnprintf(framegroupstextbuffer + framegroupstextsize, sizeof(framegroupstextbuffer) - framegroupstextsize, "%d %d %f %d // %s\n", first, count, mod->animscenes[i].framerate, mod->animscenes[i].loop, animname);
3437                                 if (l > 0) framegroupstextsize += l;
3438                         }
3439                 }
3440                 if (zymtextsize)
3441                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_zym.txt", basename), zymtextbuffer, (fs_offset_t)zymtextsize);
3442                 if (dpmtextsize)
3443                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_dpm.txt", basename), dpmtextbuffer, (fs_offset_t)dpmtextsize);
3444                 if (framegroupstextsize)
3445                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled.framegroups", basename), framegroupstextbuffer, (fs_offset_t)framegroupstextsize);
3446         }
3447 }
3448
3449 void Mod_AllocLightmap_Init(mod_alloclightmap_state_t *state, mempool_t *mempool, int width, int height)
3450 {
3451         int y;
3452         memset(state, 0, sizeof(*state));
3453         state->width = width;
3454         state->height = height;
3455         state->currentY = 0;
3456         state->rows = (mod_alloclightmap_row_t *)Mem_Alloc(mempool, state->height * sizeof(*state->rows));
3457         for (y = 0;y < state->height;y++)
3458         {
3459                 state->rows[y].currentX = 0;
3460                 state->rows[y].rowY = -1;
3461         }
3462 }
3463
3464 void Mod_AllocLightmap_Reset(mod_alloclightmap_state_t *state)
3465 {
3466         int y;
3467         state->currentY = 0;
3468         for (y = 0;y < state->height;y++)
3469         {
3470                 state->rows[y].currentX = 0;
3471                 state->rows[y].rowY = -1;
3472         }
3473 }
3474
3475 void Mod_AllocLightmap_Free(mod_alloclightmap_state_t *state)
3476 {
3477         if (state->rows)
3478                 Mem_Free(state->rows);
3479         memset(state, 0, sizeof(*state));
3480 }
3481
3482 qbool Mod_AllocLightmap_Block(mod_alloclightmap_state_t *state, int blockwidth, int blockheight, int *outx, int *outy)
3483 {
3484         mod_alloclightmap_row_t *row;
3485         int y;
3486
3487         row = state->rows + blockheight;
3488         if ((row->rowY < 0) || (row->currentX + blockwidth > state->width))
3489         {
3490                 if (state->currentY + blockheight <= state->height)
3491                 {
3492                         // use the current allocation position
3493                         row->rowY = state->currentY;
3494                         row->currentX = 0;
3495                         state->currentY += blockheight;
3496                 }
3497                 else
3498                 {
3499                         // find another position
3500                         for (y = blockheight;y < state->height;y++)
3501                         {
3502                                 if ((state->rows[y].rowY >= 0) && (state->rows[y].currentX + blockwidth <= state->width))
3503                                 {
3504                                         row = state->rows + y;
3505                                         break;
3506                                 }
3507                         }
3508                         if (y == state->height)
3509                                 return false;
3510                 }
3511         }
3512         *outy = row->rowY;
3513         *outx = row->currentX;
3514         row->currentX += blockwidth;
3515
3516         return true;
3517 }
3518
3519 typedef struct lightmapsample_s
3520 {
3521         float pos[3];
3522         float sh1[4][3];
3523         float *vertex_color;
3524         unsigned char *lm_bgr;
3525         unsigned char *lm_dir;
3526 }
3527 lightmapsample_t;
3528
3529 typedef struct lightmapvertex_s
3530 {
3531         int index;
3532         float pos[3];
3533         float normal[3];
3534         float texcoordbase[2];
3535         float texcoordlightmap[2];
3536         float lightcolor[4];
3537 }
3538 lightmapvertex_t;
3539
3540 typedef struct lightmaptriangle_s
3541 {
3542         int triangleindex;
3543         int surfaceindex;
3544         int lightmapindex;
3545         int axis;
3546         int lmoffset[2];
3547         int lmsize[2];
3548         // 2D modelspace coordinates of min corner
3549         // snapped to lightmap grid but not in grid coordinates
3550         float lmbase[2];
3551         // 2D modelspace to lightmap coordinate scale
3552         float lmscale[2];
3553         float vertex[3][3];
3554         float mins[3];
3555         float maxs[3];
3556 }
3557 lightmaptriangle_t;
3558
3559 typedef struct lightmaplight_s
3560 {
3561         float origin[3];
3562         float radius;
3563         float iradius;
3564         float radius2;
3565         float color[3];
3566         svbsp_t svbsp;
3567 }
3568 lightmaplight_t;
3569
3570 lightmaptriangle_t *mod_generatelightmaps_lightmaptriangles;
3571
3572 #define MAX_LIGHTMAPSAMPLES 64
3573 static int mod_generatelightmaps_numoffsets[3];
3574 static float mod_generatelightmaps_offsets[3][MAX_LIGHTMAPSAMPLES][3];
3575
3576 static int mod_generatelightmaps_numlights;
3577 static lightmaplight_t *mod_generatelightmaps_lightinfo;
3578
3579 extern cvar_t r_shadow_lightattenuationdividebias;
3580 extern cvar_t r_shadow_lightattenuationlinearscale;
3581
3582 static void Mod_GenerateLightmaps_LightPoint(model_t *model, const vec3_t pos, vec3_t ambient, vec3_t diffuse, vec3_t lightdir)
3583 {
3584         int i;
3585         int index;
3586         int result;
3587         float relativepoint[3];
3588         float color[3];
3589         float dir[3];
3590         float dist;
3591         float dist2;
3592         float intensity;
3593         float sample[5*3];
3594         float lightorigin[3];
3595         float lightradius;
3596         float lightradius2;
3597         float lightiradius;
3598         float lightcolor[3];
3599         trace_t trace;
3600         for (i = 0;i < 5*3;i++)
3601                 sample[i] = 0.0f;
3602         for (index = 0;;index++)
3603         {
3604                 result = R_Shadow_GetRTLightInfo(index, lightorigin, &lightradius, lightcolor);
3605                 if (result < 0)
3606                         break;
3607                 if (result == 0)
3608                         continue;
3609                 lightradius2 = lightradius * lightradius;
3610                 VectorSubtract(lightorigin, pos, relativepoint);
3611                 dist2 = VectorLength2(relativepoint);
3612                 if (dist2 >= lightradius2)
3613                         continue;
3614                 lightiradius = 1.0f / lightradius;
3615                 dist = sqrt(dist2) * lightiradius;
3616                 intensity = (1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist);
3617                 if (intensity <= 0.0f)
3618                         continue;
3619                 if (model && model->TraceLine)
3620                 {
3621                         model->TraceLine(model, NULL, NULL, &trace, pos, lightorigin, SUPERCONTENTS_SOLID, 0, MATERIALFLAGMASK_TRANSLUCENT | MATERIALFLAG_NOSHADOW);
3622                         if (trace.fraction < 1)
3623                                 continue;
3624                 }
3625                 // scale down intensity to add to both ambient and diffuse
3626                 //intensity *= 0.5f;
3627                 VectorNormalize(relativepoint);
3628                 VectorScale(lightcolor, intensity, color);
3629                 VectorMA(sample    , 0.5f            , color, sample    );
3630                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3631                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3632                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3633                 // calculate a weighted average light direction as well
3634                 intensity *= VectorLength(color);
3635                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3636         }
3637         // calculate the direction we'll use to reduce the sample to a directional light source
3638         VectorCopy(sample + 12, dir);
3639         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3640         VectorNormalize(dir);
3641         // extract the diffuse color along the chosen direction and scale it
3642         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]);
3643         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]);
3644         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]);
3645         // subtract some of diffuse from ambient
3646         VectorMA(sample, -0.333f, diffuse, ambient);
3647         // store the normalized lightdir
3648         VectorCopy(dir, lightdir);
3649 }
3650
3651 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(const model_t *model, svbsp_t *svbsp, const float *mins, const float *maxs)
3652 {
3653         int surfaceindex;
3654         int triangleindex;
3655         const msurface_t *surface;
3656         const float *vertex3f = model->surfmesh.data_vertex3f;
3657         const int *element3i = model->surfmesh.data_element3i;
3658         const int *e;
3659         float v2[3][3];
3660         for (surfaceindex = model->submodelsurfaces_start;surfaceindex < model->submodelsurfaces_end;surfaceindex++)
3661         {
3662                 surface = model->data_surfaces + surfaceindex;
3663                 if (!BoxesOverlap(surface->mins, surface->maxs, mins, maxs))
3664                         continue;
3665                 if (surface->texture->basematerialflags & MATERIALFLAG_NOSHADOW)
3666                         continue;
3667                 for (triangleindex = 0, e = element3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3668                 {
3669                         VectorCopy(vertex3f + 3*e[0], v2[0]);
3670                         VectorCopy(vertex3f + 3*e[1], v2[1]);
3671                         VectorCopy(vertex3f + 3*e[2], v2[2]);
3672                         SVBSP_AddPolygon(svbsp, 3, v2[0], true, NULL, NULL, 0);
3673                 }
3674         }
3675 }
3676
3677 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(model_t *model, lightmaplight_t *lightinfo)
3678 {
3679         int maxnodes = 1<<14;
3680         svbsp_node_t *nodes;
3681         float origin[3];
3682         float mins[3];
3683         float maxs[3];
3684         svbsp_t svbsp;
3685         VectorSet(mins, lightinfo->origin[0] - lightinfo->radius, lightinfo->origin[1] - lightinfo->radius, lightinfo->origin[2] - lightinfo->radius);
3686         VectorSet(maxs, lightinfo->origin[0] + lightinfo->radius, lightinfo->origin[1] + lightinfo->radius, lightinfo->origin[2] + lightinfo->radius);
3687         VectorCopy(lightinfo->origin, origin);
3688         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3689         for (;;)
3690         {
3691                 SVBSP_Init(&svbsp, origin, maxnodes, nodes);
3692                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(model, &svbsp, mins, maxs);
3693                 if (svbsp.ranoutofnodes)
3694                 {
3695                         maxnodes *= 16;
3696                         if (maxnodes > 1<<22)
3697                         {
3698                                 Mem_Free(nodes);
3699                                 return;
3700                         }
3701                         Mem_Free(nodes);
3702                         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3703                 }
3704                 else
3705                         break;
3706         }
3707         if (svbsp.numnodes > 0)
3708         {
3709                 svbsp.nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, svbsp.numnodes * sizeof(*nodes));
3710                 memcpy(svbsp.nodes, nodes, svbsp.numnodes * sizeof(*nodes));
3711                 lightinfo->svbsp = svbsp;
3712         }
3713         Mem_Free(nodes);
3714 }
3715
3716 static void Mod_GenerateLightmaps_CreateLights(model_t *model)
3717 {
3718         int index;
3719         int result;
3720         lightmaplight_t *lightinfo;
3721         float origin[3];
3722         float radius;
3723         float color[3];
3724         mod_generatelightmaps_numlights = 0;
3725         for (index = 0;;index++)
3726         {
3727                 result = R_Shadow_GetRTLightInfo(index, origin, &radius, color);
3728                 if (result < 0)
3729                         break;
3730                 if (result > 0)
3731                         mod_generatelightmaps_numlights++;
3732         }
3733         if (mod_generatelightmaps_numlights > 0)
3734         {
3735                 mod_generatelightmaps_lightinfo = (lightmaplight_t *)Mem_Alloc(tempmempool, mod_generatelightmaps_numlights * sizeof(*mod_generatelightmaps_lightinfo));
3736                 lightinfo = mod_generatelightmaps_lightinfo;
3737                 for (index = 0;;index++)
3738                 {
3739                         result = R_Shadow_GetRTLightInfo(index, lightinfo->origin, &lightinfo->radius, lightinfo->color);
3740                         if (result < 0)
3741                                 break;
3742                         if (result > 0)
3743                                 lightinfo++;
3744                 }
3745         }
3746         for (index = 0, lightinfo = mod_generatelightmaps_lightinfo;index < mod_generatelightmaps_numlights;index++, lightinfo++)
3747         {
3748                 lightinfo->iradius = 1.0f / lightinfo->radius;
3749                 lightinfo->radius2 = lightinfo->radius * lightinfo->radius;
3750                 // TODO: compute svbsp
3751                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(model, lightinfo);
3752         }
3753 }
3754
3755 static void Mod_GenerateLightmaps_DestroyLights(model_t *model)
3756 {
3757         int i;
3758         if (mod_generatelightmaps_lightinfo)
3759         {
3760                 for (i = 0;i < mod_generatelightmaps_numlights;i++)
3761                         if (mod_generatelightmaps_lightinfo[i].svbsp.nodes)
3762                                 Mem_Free(mod_generatelightmaps_lightinfo[i].svbsp.nodes);
3763                 Mem_Free(mod_generatelightmaps_lightinfo);
3764         }
3765         mod_generatelightmaps_lightinfo = NULL;
3766         mod_generatelightmaps_numlights = 0;
3767 }
3768
3769 static qbool Mod_GenerateLightmaps_SamplePoint_SVBSP(const svbsp_t *svbsp, const float *pos)
3770 {
3771         const svbsp_node_t *node;
3772         const svbsp_node_t *nodes = svbsp->nodes;
3773         int num = 0;
3774         while (num >= 0)
3775         {
3776                 node = nodes + num;
3777                 num = node->children[DotProduct(node->plane, pos) < node->plane[3]];
3778         }
3779         return num == -1; // true if empty, false if solid (shadowed)
3780 }
3781
3782 static void Mod_GenerateLightmaps_SamplePoint(const float *pos, const float *normal, float *sample, int numoffsets, const float *offsets)
3783 {
3784         int i;
3785         float relativepoint[3];
3786         float color[3];
3787         float offsetpos[3];
3788         float dist;
3789         float dist2;
3790         float intensity;
3791         int offsetindex;
3792         int hits;
3793         int tests;
3794         const lightmaplight_t *lightinfo;
3795         trace_t trace;
3796         for (i = 0;i < 5*3;i++)
3797                 sample[i] = 0.0f;
3798         for (i = 0, lightinfo = mod_generatelightmaps_lightinfo;i < mod_generatelightmaps_numlights;i++, lightinfo++)
3799         {
3800                 //R_SampleRTLights(pos, sample, numoffsets, offsets);
3801                 VectorSubtract(lightinfo->origin, pos, relativepoint);
3802                 // don't accept light from behind a surface, it causes bad shading
3803                 if (normal && DotProduct(relativepoint, normal) <= 0)
3804                         continue;
3805                 dist2 = VectorLength2(relativepoint);
3806                 if (dist2 >= lightinfo->radius2)
3807                         continue;
3808                 dist = sqrt(dist2) * lightinfo->iradius;
3809                 intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
3810                 if (intensity <= 0)
3811                         continue;
3812                 if (cl.worldmodel && cl.worldmodel->TraceLine && numoffsets > 0)
3813                 {
3814                         hits = 0;
3815                         tests = 1;
3816                         if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, pos))
3817                                 hits++;
3818                         for (offsetindex = 1;offsetindex < numoffsets;offsetindex++)
3819                         {
3820                                 VectorAdd(pos, offsets + 3*offsetindex, offsetpos);
3821                                 if (!normal)
3822                                 {
3823                                         // for light grid we'd better check visibility of the offset point
3824                                         cl.worldmodel->TraceLine(cl.worldmodel, NULL, NULL, &trace, pos, offsetpos, SUPERCONTENTS_SOLID, 0, MATERIALFLAGMASK_TRANSLUCENT | MATERIALFLAG_NOSHADOW);
3825                                         if (trace.fraction < 1)
3826                                                 VectorLerp(pos, trace.fraction, offsetpos, offsetpos);
3827                                 }
3828                                 tests++;
3829                                 if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, offsetpos))
3830                                         hits++;
3831                         }
3832                         if (!hits)
3833                                 continue;
3834                         // scale intensity according to how many rays succeeded
3835                         // we know one test is valid, half of the rest will fail...
3836                         //if (normal && tests > 1)
3837                         //      intensity *= (tests - 1.0f) / tests;
3838                         intensity *= (float)hits / tests;
3839                 }
3840                 // scale down intensity to add to both ambient and diffuse
3841                 //intensity *= 0.5f;
3842                 VectorNormalize(relativepoint);
3843                 VectorScale(lightinfo->color, intensity, color);
3844                 VectorMA(sample    , 0.5f            , color, sample    );
3845                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3846                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3847                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3848                 // calculate a weighted average light direction as well
3849                 intensity *= VectorLength(color);
3850                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3851         }
3852 }
3853
3854 static void Mod_GenerateLightmaps_LightmapSample(const float *pos, const float *normal, unsigned char *lm_bgr, unsigned char *lm_dir)
3855 {
3856         float sample[5*3];
3857         float color[3];
3858         float dir[3];
3859         float f;
3860         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[0], mod_generatelightmaps_offsets[0][0]);
3861         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3862         VectorCopy(sample + 12, dir);
3863         VectorNormalize(dir);
3864         //VectorAdd(dir, normal, dir);
3865         //VectorNormalize(dir);
3866         f = DotProduct(dir, normal);
3867         f = max(0, f) * 255.0f;
3868         VectorScale(sample, f, color);
3869         //VectorCopy(normal, dir);
3870         VectorSet(dir, (dir[0]+1.0f)*127.5f, (dir[1]+1.0f)*127.5f, (dir[2]+1.0f)*127.5f);
3871         lm_bgr[0] = (unsigned char)bound(0.0f, color[2], 255.0f);
3872         lm_bgr[1] = (unsigned char)bound(0.0f, color[1], 255.0f);
3873         lm_bgr[2] = (unsigned char)bound(0.0f, color[0], 255.0f);
3874         lm_bgr[3] = 255;
3875         lm_dir[0] = (unsigned char)dir[2];
3876         lm_dir[1] = (unsigned char)dir[1];
3877         lm_dir[2] = (unsigned char)dir[0];
3878         lm_dir[3] = 255;
3879 }
3880
3881 static void Mod_GenerateLightmaps_VertexSample(const float *pos, const float *normal, float *vertex_color)
3882 {
3883         float sample[5*3];
3884         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[1], mod_generatelightmaps_offsets[1][0]);
3885         VectorCopy(sample, vertex_color);
3886 }
3887
3888 static void Mod_GenerateLightmaps_GridSample(const float *pos, q3dlightgrid_t *s)
3889 {
3890         float sample[5*3];
3891         float ambient[3];
3892         float diffuse[3];
3893         float dir[3];
3894         Mod_GenerateLightmaps_SamplePoint(pos, NULL, sample, mod_generatelightmaps_numoffsets[2], mod_generatelightmaps_offsets[2][0]);
3895         // calculate the direction we'll use to reduce the sample to a directional light source
3896         VectorCopy(sample + 12, dir);
3897         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3898         VectorNormalize(dir);
3899         // extract the diffuse color along the chosen direction and scale it
3900         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]) * 127.5f;
3901         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]) * 127.5f;
3902         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]) * 127.5f;
3903         // scale the ambient from 0-2 to 0-255 and subtract some of diffuse
3904         VectorScale(sample, 127.5f, ambient);
3905         VectorMA(ambient, -0.333f, diffuse, ambient);
3906         // encode to the grid format
3907         s->ambientrgb[0] = (unsigned char)bound(0.0f, ambient[0], 255.0f);
3908         s->ambientrgb[1] = (unsigned char)bound(0.0f, ambient[1], 255.0f);
3909         s->ambientrgb[2] = (unsigned char)bound(0.0f, ambient[2], 255.0f);
3910         s->diffusergb[0] = (unsigned char)bound(0.0f, diffuse[0], 255.0f);
3911         s->diffusergb[1] = (unsigned char)bound(0.0f, diffuse[1], 255.0f);
3912         s->diffusergb[2] = (unsigned char)bound(0.0f, diffuse[2], 255.0f);
3913         if (dir[2] >= 0.99f) {s->diffusepitch = 0;s->diffuseyaw = 0;}
3914         else if (dir[2] <= -0.99f) {s->diffusepitch = 128;s->diffuseyaw = 0;}
3915         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));}
3916 }
3917
3918 static void Mod_GenerateLightmaps_InitSampleOffsets(model_t *model)
3919 {
3920         float radius[3];
3921         float temp[3];
3922         int i, j;
3923         memset(mod_generatelightmaps_offsets, 0, sizeof(mod_generatelightmaps_offsets));
3924         mod_generatelightmaps_numoffsets[0] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_lightmapsamples.integer);
3925         mod_generatelightmaps_numoffsets[1] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_vertexsamples.integer);
3926         mod_generatelightmaps_numoffsets[2] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_gridsamples.integer);
3927         radius[0] = mod_generatelightmaps_lightmapradius.value;
3928         radius[1] = mod_generatelightmaps_vertexradius.value;
3929         radius[2] = mod_generatelightmaps_gridradius.value;
3930         for (i = 0;i < 3;i++)
3931         {
3932                 for (j = 1;j < mod_generatelightmaps_numoffsets[i];j++)
3933                 {
3934                         VectorRandom(temp);
3935                         VectorScale(temp, radius[i], mod_generatelightmaps_offsets[i][j]);
3936                 }
3937         }
3938 }
3939
3940 static void Mod_GenerateLightmaps_DestroyLightmaps(model_t *model)
3941 {
3942         msurface_t *surface;
3943         int surfaceindex;
3944         int i;
3945         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3946         {
3947                 surface = model->data_surfaces + surfaceindex;
3948                 surface->lightmaptexture = NULL;
3949                 surface->deluxemaptexture = NULL;
3950         }
3951         if (model->brushq3.data_lightmaps)
3952         {
3953                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3954                         if (model->brushq3.data_lightmaps[i])
3955                                 R_FreeTexture(model->brushq3.data_lightmaps[i]);
3956                 Mem_Free(model->brushq3.data_lightmaps);
3957                 model->brushq3.data_lightmaps = NULL;
3958         }
3959         if (model->brushq3.data_deluxemaps)
3960         {
3961                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3962                         if (model->brushq3.data_deluxemaps[i])
3963                                 R_FreeTexture(model->brushq3.data_deluxemaps[i]);
3964                 Mem_Free(model->brushq3.data_deluxemaps);
3965                 model->brushq3.data_deluxemaps = NULL;
3966         }
3967 }
3968
3969 static void Mod_GenerateLightmaps_UnweldTriangles(model_t *model)
3970 {
3971         msurface_t *surface;
3972         int surfaceindex;
3973         int vertexindex;
3974         int outvertexindex;
3975         int i;
3976         const int *e;
3977         surfmesh_t oldsurfmesh;
3978         size_t size;
3979         unsigned char *data;
3980         oldsurfmesh = model->surfmesh;
3981         model->surfmesh.num_triangles = oldsurfmesh.num_triangles;
3982         model->surfmesh.num_vertices = oldsurfmesh.num_triangles * 3;
3983         size = 0;
3984         size += model->surfmesh.num_vertices * sizeof(float[3]);
3985         size += model->surfmesh.num_vertices * sizeof(float[3]);
3986         size += model->surfmesh.num_vertices * sizeof(float[3]);
3987         size += model->surfmesh.num_vertices * sizeof(float[3]);
3988         size += model->surfmesh.num_vertices * sizeof(float[2]);
3989         size += model->surfmesh.num_vertices * sizeof(float[2]);
3990         size += model->surfmesh.num_vertices * sizeof(float[4]);
3991         data = (unsigned char *)Mem_Alloc(model->mempool, size);
3992         model->surfmesh.data_vertex3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3993         model->surfmesh.data_normal3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3994         model->surfmesh.data_svector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3995         model->surfmesh.data_tvector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3996         model->surfmesh.data_texcoordtexture2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
3997         model->surfmesh.data_texcoordlightmap2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
3998         model->surfmesh.data_lightmapcolor4f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[4]);
3999         if (model->surfmesh.num_vertices > 65536)
4000                 model->surfmesh.data_element3s = NULL;
4001
4002         if (model->surfmesh.data_element3i_indexbuffer && !model->surfmesh.data_element3i_indexbuffer->isdynamic)
4003                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3i_indexbuffer);
4004         model->surfmesh.data_element3i_indexbuffer = NULL;
4005         if (model->surfmesh.data_element3s_indexbuffer && !model->surfmesh.data_element3s_indexbuffer->isdynamic)
4006                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3s_indexbuffer);
4007         model->surfmesh.data_element3s_indexbuffer = NULL;
4008         if (model->surfmesh.data_vertex3f_vertexbuffer && !model->surfmesh.data_vertex3f_vertexbuffer->isdynamic)
4009                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_vertex3f_vertexbuffer);
4010         model->surfmesh.data_vertex3f_vertexbuffer = NULL;
4011         model->surfmesh.data_svector3f_vertexbuffer = NULL;
4012         model->surfmesh.data_tvector3f_vertexbuffer = NULL;
4013         model->surfmesh.data_normal3f_vertexbuffer = NULL;
4014         model->surfmesh.data_texcoordtexture2f_vertexbuffer = NULL;
4015         model->surfmesh.data_texcoordlightmap2f_vertexbuffer = NULL;
4016         model->surfmesh.data_lightmapcolor4f_vertexbuffer = NULL;
4017         model->surfmesh.data_skeletalindex4ub_vertexbuffer = NULL;
4018         model->surfmesh.data_skeletalweight4ub_vertexbuffer = NULL;
4019
4020         // convert all triangles to unique vertex data
4021         outvertexindex = 0;
4022         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4023         {
4024                 surface = model->data_surfaces + surfaceindex;
4025                 surface->num_firstvertex = outvertexindex;
4026                 surface->num_vertices = surface->num_triangles*3;
4027                 e = oldsurfmesh.data_element3i + surface->num_firsttriangle*3;
4028                 for (i = 0;i < surface->num_triangles*3;i++)
4029                 {
4030                         vertexindex = e[i];
4031                         model->surfmesh.data_vertex3f[outvertexindex*3+0] = oldsurfmesh.data_vertex3f[vertexindex*3+0];
4032                         model->surfmesh.data_vertex3f[outvertexindex*3+1] = oldsurfmesh.data_vertex3f[vertexindex*3+1];
4033                         model->surfmesh.data_vertex3f[outvertexindex*3+2] = oldsurfmesh.data_vertex3f[vertexindex*3+2];
4034                         model->surfmesh.data_normal3f[outvertexindex*3+0] = oldsurfmesh.data_normal3f[vertexindex*3+0];
4035                         model->surfmesh.data_normal3f[outvertexindex*3+1] = oldsurfmesh.data_normal3f[vertexindex*3+1];
4036                         model->surfmesh.data_normal3f[outvertexindex*3+2] = oldsurfmesh.data_normal3f[vertexindex*3+2];
4037                         model->surfmesh.data_svector3f[outvertexindex*3+0] = oldsurfmesh.data_svector3f[vertexindex*3+0];
4038                         model->surfmesh.data_svector3f[outvertexindex*3+1] = oldsurfmesh.data_svector3f[vertexindex*3+1];
4039                         model->surfmesh.data_svector3f[outvertexindex*3+2] = oldsurfmesh.data_svector3f[vertexindex*3+2];
4040                         model->surfmesh.data_tvector3f[outvertexindex*3+0] = oldsurfmesh.data_tvector3f[vertexindex*3+0];
4041                         model->surfmesh.data_tvector3f[outvertexindex*3+1] = oldsurfmesh.data_tvector3f[vertexindex*3+1];
4042                         model->surfmesh.data_tvector3f[outvertexindex*3+2] = oldsurfmesh.data_tvector3f[vertexindex*3+2];
4043                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+0];
4044                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+1];
4045                         if (oldsurfmesh.data_texcoordlightmap2f)
4046                         {
4047                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+0];
4048                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+1];
4049                         }
4050                         if (oldsurfmesh.data_lightmapcolor4f)
4051                         {
4052                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+0] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+0];
4053                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+1] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+1];
4054                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+2] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+2];
4055                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+3] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+3];
4056                         }
4057                         else
4058                                 Vector4Set(model->surfmesh.data_lightmapcolor4f + 4*outvertexindex, 1, 1, 1, 1);
4059                         model->surfmesh.data_element3i[surface->num_firsttriangle*3+i] = outvertexindex;
4060                         outvertexindex++;
4061                 }
4062         }
4063         if (model->surfmesh.data_element3s)
4064                 for (i = 0;i < model->surfmesh.num_triangles*3;i++)
4065                         model->surfmesh.data_element3s[i] = model->surfmesh.data_element3i[i];
4066
4067         // find and update all submodels to use this new surfmesh data
4068         for (i = 0;i < model->brush.numsubmodels;i++)
4069                 model->brush.submodels[i]->surfmesh = model->surfmesh;
4070 }
4071
4072 static void Mod_GenerateLightmaps_CreateTriangleInformation(model_t *model)
4073 {
4074         msurface_t *surface;
4075         int surfaceindex;
4076         int i;
4077         int axis;
4078         float normal[3];
4079         const int *e;
4080         lightmaptriangle_t *triangle;
4081         // generate lightmap triangle structs
4082         mod_generatelightmaps_lightmaptriangles = (lightmaptriangle_t *)Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4083         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4084         {
4085                 surface = model->data_surfaces + surfaceindex;
4086                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4087                 for (i = 0;i < surface->num_triangles;i++)
4088                 {
4089                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4090                         triangle->triangleindex = surface->num_firsttriangle+i;
4091                         triangle->surfaceindex = surfaceindex;
4092                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+0], triangle->vertex[0]);
4093                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+1], triangle->vertex[1]);
4094                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+2], triangle->vertex[2]);
4095                         // calculate bounds of triangle
4096                         triangle->mins[0] = min(triangle->vertex[0][0], min(triangle->vertex[1][0], triangle->vertex[2][0]));
4097                         triangle->mins[1] = min(triangle->vertex[0][1], min(triangle->vertex[1][1], triangle->vertex[2][1]));
4098                         triangle->mins[2] = min(triangle->vertex[0][2], min(triangle->vertex[1][2], triangle->vertex[2][2]));
4099                         triangle->maxs[0] = max(triangle->vertex[0][0], max(triangle->vertex[1][0], triangle->vertex[2][0]));
4100                         triangle->maxs[1] = max(triangle->vertex[0][1], max(triangle->vertex[1][1], triangle->vertex[2][1]));
4101                         triangle->maxs[2] = max(triangle->vertex[0][2], max(triangle->vertex[1][2], triangle->vertex[2][2]));
4102                         // pick an axial projection based on the triangle normal
4103                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], normal);
4104                         axis = 0;
4105                         if (fabs(normal[1]) > fabs(normal[axis]))
4106                                 axis = 1;
4107                         if (fabs(normal[2]) > fabs(normal[axis]))
4108                                 axis = 2;
4109                         triangle->axis = axis;
4110                 }
4111         }
4112 }
4113
4114 static void Mod_GenerateLightmaps_DestroyTriangleInformation(model_t *model)
4115 {
4116         if (mod_generatelightmaps_lightmaptriangles)
4117                 Mem_Free(mod_generatelightmaps_lightmaptriangles);
4118         mod_generatelightmaps_lightmaptriangles = NULL;
4119 }
4120
4121 float lmaxis[3][3] = {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}};
4122
4123 static void Mod_GenerateLightmaps_CreateLightmaps(model_t *model)
4124 {
4125         msurface_t *surface;
4126         int surfaceindex;
4127         int lightmapindex;
4128         int lightmapnumber;
4129         int i;
4130         int j;
4131         int k;
4132         int x;
4133         int y;
4134         int axis;
4135         int axis1;
4136         int axis2;
4137         int retry;
4138         int pixeloffset;
4139         float trianglenormal[3];
4140         float samplecenter[3];
4141         float samplenormal[3];
4142         float temp[3];
4143         float lmiscale[2];
4144         float slopex;
4145         float slopey;
4146         float slopebase;
4147         float lmscalepixels;
4148         float lmmins;
4149         float lmmaxs;
4150         float lm_basescalepixels;
4151         int lm_borderpixels;
4152         int lm_texturesize;
4153         //int lm_maxpixels;
4154         const int *e;
4155         lightmaptriangle_t *triangle;
4156         unsigned char *lightmappixels;
4157         unsigned char *deluxemappixels;
4158         mod_alloclightmap_state_t lmstate;
4159         char vabuf[1024];
4160
4161         // generate lightmap projection information for all triangles
4162         if (model->texturepool == NULL)
4163                 model->texturepool = R_AllocTexturePool();
4164         lm_basescalepixels = 1.0f / max(0.0001f, mod_generatelightmaps_unitspersample.value);
4165         lm_borderpixels = mod_generatelightmaps_borderpixels.integer;
4166         lm_texturesize = bound(lm_borderpixels*2+1, 64, (int)vid.maxtexturesize_2d);
4167         //lm_maxpixels = lm_texturesize-(lm_borderpixels*2+1);
4168         Mod_AllocLightmap_Init(&lmstate, loadmodel->mempool, lm_texturesize, lm_texturesize);
4169         lightmapnumber = 0;
4170         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4171         {
4172                 surface = model->data_surfaces + surfaceindex;
4173                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4174                 lmscalepixels = lm_basescalepixels;
4175                 for (retry = 0;retry < 30;retry++)
4176                 {
4177                         // after a couple failed attempts, degrade quality to make it fit
4178                         if (retry > 1)
4179                                 lmscalepixels *= 0.5f;
4180                         for (i = 0;i < surface->num_triangles;i++)
4181                         {
4182                                 triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4183                                 triangle->lightmapindex = lightmapnumber;
4184                                 // calculate lightmap bounds in 3D pixel coordinates, limit size,
4185                                 // pick two planar axes for projection
4186                                 // lightmap coordinates here are in pixels
4187                                 // lightmap projections are snapped to pixel grid explicitly, such
4188                                 // that two neighboring triangles sharing an edge and projection
4189                                 // axis will have identical sample spacing along their shared edge
4190                                 k = 0;
4191                                 for (j = 0;j < 3;j++)
4192                                 {
4193                                         if (j == triangle->axis)
4194                                                 continue;
4195                                         lmmins = floor(triangle->mins[j]*lmscalepixels)-lm_borderpixels;
4196                                         lmmaxs = floor(triangle->maxs[j]*lmscalepixels)+lm_borderpixels;
4197                                         triangle->lmsize[k] = (int)(lmmaxs-lmmins);
4198                                         triangle->lmbase[k] = lmmins/lmscalepixels;
4199                                         triangle->lmscale[k] = lmscalepixels;
4200                                         k++;
4201                                 }
4202                                 if (!Mod_AllocLightmap_Block(&lmstate, triangle->lmsize[0], triangle->lmsize[1], &triangle->lmoffset[0], &triangle->lmoffset[1]))
4203                                         break;
4204                         }
4205                         // if all fit in this texture, we're done with this surface
4206                         if (i == surface->num_triangles)
4207                                 break;
4208                         // if we haven't maxed out the lightmap size yet, we retry the
4209                         // entire surface batch...
4210                         if (lm_texturesize * 2 <= min(mod_generatelightmaps_texturesize.integer, (int)vid.maxtexturesize_2d))
4211                         {
4212                                 lm_texturesize *= 2;
4213                                 surfaceindex = -1;
4214                                 lightmapnumber = 0;
4215                                 Mod_AllocLightmap_Free(&lmstate);
4216                                 Mod_AllocLightmap_Init(&lmstate, loadmodel->mempool, lm_texturesize, lm_texturesize);
4217                                 break;
4218                         }
4219                         // if we have maxed out the lightmap size, and this triangle does
4220                         // not fit in the same texture as the rest of the surface, we have
4221                         // to retry the entire surface in a new texture (can only use one)
4222                         // with multiple retries, the lightmap quality degrades until it
4223                         // fits (or gives up)
4224                         if (surfaceindex > 0)
4225                                 lightmapnumber++;
4226                         Mod_AllocLightmap_Reset(&lmstate);
4227                 }
4228         }
4229         lightmapnumber++;
4230         Mod_AllocLightmap_Free(&lmstate);
4231
4232         // now put triangles together into lightmap textures, and do not allow
4233         // triangles of a surface to go into different textures (as that would
4234         // require rewriting the surface list)
4235         model->brushq3.deluxemapping_modelspace = true;
4236         model->brushq3.deluxemapping = true;
4237         model->brushq3.num_mergedlightmaps = lightmapnumber;
4238         model->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4239         model->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4240         lightmappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4241         deluxemappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4242         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4243         {
4244                 surface = model->data_surfaces + surfaceindex;
4245                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4246                 for (i = 0;i < surface->num_triangles;i++)
4247                 {
4248                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4249                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], trianglenormal);
4250                         VectorNormalize(trianglenormal);
4251                         VectorCopy(trianglenormal, samplenormal); // FIXME: this is supposed to be interpolated per pixel from vertices
4252                         axis = triangle->axis;
4253                         axis1 = axis == 0 ? 1 : 0;
4254                         axis2 = axis == 2 ? 1 : 2;
4255                         lmiscale[0] = 1.0f / triangle->lmscale[0];
4256                         lmiscale[1] = 1.0f / triangle->lmscale[1];
4257                         if (trianglenormal[axis] < 0)
4258                                 VectorNegate(trianglenormal, trianglenormal);
4259                         CrossProduct(lmaxis[axis2], trianglenormal, temp);slopex = temp[axis] / temp[axis1];
4260                         CrossProduct(lmaxis[axis1], trianglenormal, temp);slopey = temp[axis] / temp[axis2];
4261                         slopebase = triangle->vertex[0][axis] - triangle->vertex[0][axis1]*slopex - triangle->vertex[0][axis2]*slopey;
4262                         for (j = 0;j < 3;j++)
4263                         {
4264                                 float *t2f = model->surfmesh.data_texcoordlightmap2f + e[i*3+j]*2;
4265                                 t2f[0] = ((triangle->vertex[j][axis1] - triangle->lmbase[0]) * triangle->lmscale[0] + triangle->lmoffset[0]) / lm_texturesize;
4266                                 t2f[1] = ((triangle->vertex[j][axis2] - triangle->lmbase[1]) * triangle->lmscale[1] + triangle->lmoffset[1]) / lm_texturesize;
4267 #if 0
4268                                 samplecenter[axis1] = (t2f[0]*lm_texturesize-triangle->lmoffset[0])*lmiscale[0] + triangle->lmbase[0];
4269                                 samplecenter[axis2] = (t2f[1]*lm_texturesize-triangle->lmoffset[1])*lmiscale[1] + triangle->lmbase[1];
4270                                 samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4271                                 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]);
4272 #endif
4273                         }
4274
4275 #if 0
4276                         switch (axis)
4277                         {
4278                         default:
4279                         case 0:
4280                                 forward[0] = 0;
4281                                 forward[1] = 1.0f / triangle->lmscale[0];
4282                                 forward[2] = 0;
4283                                 left[0] = 0;
4284                                 left[1] = 0;
4285                                 left[2] = 1.0f / triangle->lmscale[1];
4286                                 up[0] = 1.0f;
4287                                 up[1] = 0;
4288                                 up[2] = 0;
4289                                 origin[0] = 0;
4290                                 origin[1] = triangle->lmbase[0];
4291                                 origin[2] = triangle->lmbase[1];
4292                                 break;
4293                         case 1:
4294                                 forward[0] = 1.0f / triangle->lmscale[0];
4295                                 forward[1] = 0;
4296                                 forward[2] = 0;
4297                                 left[0] = 0;
4298                                 left[1] = 0;
4299                                 left[2] = 1.0f / triangle->lmscale[1];
4300                                 up[0] = 0;
4301                                 up[1] = 1.0f;
4302                                 up[2] = 0;
4303                                 origin[0] = triangle->lmbase[0];
4304                                 origin[1] = 0;
4305                                 origin[2] = triangle->lmbase[1];
4306                                 break;
4307                         case 2:
4308                                 forward[0] = 1.0f / triangle->lmscale[0];
4309                                 forward[1] = 0;
4310                                 forward[2] = 0;
4311                                 left[0] = 0;
4312                                 left[1] = 1.0f / triangle->lmscale[1];
4313                                 left[2] = 0;
4314                                 up[0] = 0;
4315                                 up[1] = 0;
4316                                 up[2] = 1.0f;
4317                                 origin[0] = triangle->lmbase[0];
4318                                 origin[1] = triangle->lmbase[1];
4319                                 origin[2] = 0;
4320                                 break;
4321                         }
4322                         Matrix4x4_FromVectors(&backmatrix, forward, left, up, origin);
4323 #endif
4324 #define LM_DIST_EPSILON (1.0f / 32.0f)
4325                         for (y = 0;y < triangle->lmsize[1];y++)
4326                         {
4327                                 pixeloffset = ((triangle->lightmapindex * lm_texturesize + y + triangle->lmoffset[1]) * lm_texturesize + triangle->lmoffset[0]) * 4;
4328                                 for (x = 0;x < triangle->lmsize[0];x++, pixeloffset += 4)
4329                                 {
4330                                         samplecenter[axis1] = (x+0.5f)*lmiscale[0] + triangle->lmbase[0];
4331                                         samplecenter[axis2] = (y+0.5f)*lmiscale[1] + triangle->lmbase[1];
4332                                         samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4333                                         VectorMA(samplecenter, 0.125f, samplenormal, samplecenter);
4334                                         Mod_GenerateLightmaps_LightmapSample(samplecenter, samplenormal, lightmappixels + pixeloffset, deluxemappixels + pixeloffset);
4335                                 }
4336                         }
4337                 }
4338         }
4339
4340         for (lightmapindex = 0;lightmapindex < model->brushq3.num_mergedlightmaps;lightmapindex++)
4341         {
4342                 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);
4343                 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);
4344         }
4345
4346         if (lightmappixels)
4347                 Mem_Free(lightmappixels);
4348         if (deluxemappixels)
4349                 Mem_Free(deluxemappixels);
4350
4351         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4352         {
4353                 surface = model->data_surfaces + surfaceindex;
4354                 if (!surface->num_triangles)
4355                         continue;
4356                 lightmapindex = mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle].lightmapindex;
4357                 surface->lightmaptexture = model->brushq3.data_lightmaps[lightmapindex];
4358                 surface->deluxemaptexture = model->brushq3.data_deluxemaps[lightmapindex];
4359                 surface->lightmapinfo = NULL;
4360         }
4361
4362         model->brush.LightPoint = Mod_GenerateLightmaps_LightPoint;
4363         model->brushq1.lightdata = NULL;
4364         model->brushq1.lightmapupdateflags = NULL;
4365         model->brushq1.firstrender = false;
4366         model->brushq1.num_lightstyles = 0;
4367         model->brushq1.data_lightstyleinfo = NULL;
4368         for (i = 0;i < model->brush.numsubmodels;i++)
4369         {
4370                 model->brush.submodels[i]->brushq1.lightmapupdateflags = NULL;
4371                 model->brush.submodels[i]->brushq1.firstrender = false;
4372                 model->brush.submodels[i]->brushq1.num_lightstyles = 0;
4373                 model->brush.submodels[i]->brushq1.data_lightstyleinfo = NULL;
4374         }
4375 }
4376
4377 static void Mod_GenerateLightmaps_UpdateVertexColors(model_t *model)
4378 {
4379         int i;
4380         for (i = 0;i < model->surfmesh.num_vertices;i++)
4381                 Mod_GenerateLightmaps_VertexSample(model->surfmesh.data_vertex3f + 3*i, model->surfmesh.data_normal3f + 3*i, model->surfmesh.data_lightmapcolor4f + 4*i);
4382 }
4383
4384 static void Mod_GenerateLightmaps_UpdateLightGrid(model_t *model)
4385 {
4386         int x;
4387         int y;
4388         int z;
4389         int index = 0;
4390         float pos[3];
4391         for (z = 0;z < model->brushq3.num_lightgrid_isize[2];z++)
4392         {
4393                 pos[2] = (model->brushq3.num_lightgrid_imins[2] + z + 0.5f) * model->brushq3.num_lightgrid_cellsize[2];
4394                 for (y = 0;y < model->brushq3.num_lightgrid_isize[1];y++)
4395                 {
4396                         pos[1] = (model->brushq3.num_lightgrid_imins[1] + y + 0.5f) * model->brushq3.num_lightgrid_cellsize[1];
4397                         for (x = 0;x < model->brushq3.num_lightgrid_isize[0];x++, index++)
4398                         {
4399                                 pos[0] = (model->brushq3.num_lightgrid_imins[0] + x + 0.5f) * model->brushq3.num_lightgrid_cellsize[0];
4400                                 Mod_GenerateLightmaps_GridSample(pos, model->brushq3.data_lightgrid + index);
4401                         }
4402                 }
4403         }
4404 }
4405
4406 extern cvar_t mod_q3bsp_nolightmaps;
4407 static void Mod_GenerateLightmaps(model_t *model)
4408 {
4409         //lightmaptriangle_t *lightmaptriangles = Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4410         model_t *oldloadmodel = loadmodel;
4411         loadmodel = model;
4412
4413         Mod_GenerateLightmaps_InitSampleOffsets(model);
4414         Mod_GenerateLightmaps_DestroyLightmaps(model);
4415         Mod_GenerateLightmaps_UnweldTriangles(model);
4416         Mod_GenerateLightmaps_CreateTriangleInformation(model);
4417         Mod_GenerateLightmaps_CreateLights(model);
4418         if(!mod_q3bsp_nolightmaps.integer)
4419                 Mod_GenerateLightmaps_CreateLightmaps(model);
4420         Mod_GenerateLightmaps_UpdateVertexColors(model);
4421         Mod_GenerateLightmaps_UpdateLightGrid(model);
4422         Mod_GenerateLightmaps_DestroyLights(model);
4423         Mod_GenerateLightmaps_DestroyTriangleInformation(model);
4424
4425         loadmodel = oldloadmodel;
4426 }
4427
4428 static void Mod_GenerateLightmaps_f(cmd_state_t *cmd)
4429 {
4430         if (Cmd_Argc(cmd) != 1)
4431         {
4432                 Con_Printf("usage: mod_generatelightmaps\n");
4433                 return;
4434         }
4435         if (!cl.worldmodel)
4436         {
4437                 Con_Printf("no worldmodel loaded\n");
4438                 return;
4439         }
4440         Mod_GenerateLightmaps(cl.worldmodel);
4441 }
4442
4443 void Mod_Mesh_Create(model_t *mod, const char *name)
4444 {
4445         memset(mod, 0, sizeof(*mod));
4446         dp_strlcpy(mod->name, name, sizeof(mod->name));
4447         mod->mempool = Mem_AllocPool(name, 0, NULL);
4448         mod->texturepool = R_AllocTexturePool();
4449         mod->Draw = R_Mod_Draw;
4450         mod->DrawDepth = R_Mod_DrawDepth;
4451         mod->DrawDebug = R_Mod_DrawDebug;
4452         mod->DrawPrepass = R_Mod_DrawPrepass;
4453         mod->GetLightInfo = R_Mod_GetLightInfo;
4454         mod->DrawShadowMap = R_Mod_DrawShadowMap;
4455         mod->DrawLight = R_Mod_DrawLight;
4456 }
4457
4458 void Mod_Mesh_Destroy(model_t *mod)
4459 {
4460         Mod_UnloadModel(mod);
4461 }
4462
4463 // resets the mesh model to have no geometry to render, ready for a new frame -
4464 // the mesh will be prepared for rendering later using Mod_Mesh_Finalize
4465 void Mod_Mesh_Reset(model_t *mod)
4466 {
4467         mod->num_surfaces = 0;
4468         mod->surfmesh.num_vertices = 0;
4469         mod->surfmesh.num_triangles = 0;
4470         if (mod->surfmesh.data_vertexhash) // UBSan: memset arg 1 isn't allowed to be null, but sometimes this is NULL.
4471                 memset(mod->surfmesh.data_vertexhash, -1, mod->surfmesh.num_vertexhashsize * sizeof(*mod->surfmesh.data_vertexhash));
4472         mod->DrawSky = NULL; // will be set if a texture needs it
4473         mod->DrawAddWaterPlanes = NULL; // will be set if a texture needs it
4474 }
4475
4476 texture_t *Mod_Mesh_GetTexture(model_t *mod, const char *name, int defaultdrawflags, int defaulttexflags, int defaultmaterialflags)
4477 {
4478         int i;
4479         texture_t *t;
4480         int drawflag = defaultdrawflags & DRAWFLAG_MASK;
4481         for (i = 0, t = mod->data_textures; i < mod->num_textures; i++, t++)
4482                 if (!strcmp(t->name, name) && t->mesh_drawflag == drawflag && t->mesh_defaulttexflags == defaulttexflags && t->mesh_defaultmaterialflags == defaultmaterialflags)
4483                         return t;
4484         if (mod->max_textures <= mod->num_textures)
4485         {
4486                 texture_t *oldtextures = mod->data_textures;
4487                 mod->max_textures = max(mod->max_textures * 2, 1024);
4488                 mod->data_textures = (texture_t *)Mem_Realloc(mod->mempool, mod->data_textures, mod->max_textures * sizeof(*mod->data_textures));
4489                 // update the pointers
4490                 for (i = 0; i < mod->num_surfaces; i++)
4491                         mod->data_surfaces[i].texture = mod->data_textures + (mod->data_surfaces[i].texture - oldtextures);
4492         }
4493         t = &mod->data_textures[mod->num_textures++];
4494         Mod_LoadTextureFromQ3Shader(mod->mempool, mod->name, t, name, true, true, defaulttexflags, defaultmaterialflags);
4495         t->mesh_drawflag = drawflag;
4496         t->mesh_defaulttexflags = defaulttexflags;
4497         t->mesh_defaultmaterialflags = defaultmaterialflags;
4498         switch (defaultdrawflags & DRAWFLAG_MASK)
4499         {
4500         case DRAWFLAG_ADDITIVE:
4501                 t->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED;
4502                 t->currentmaterialflags = t->basematerialflags;
4503                 break;
4504         case DRAWFLAG_MODULATE:
4505                 t->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_BLENDED;
4506                 t->currentmaterialflags = t->basematerialflags;
4507                 t->customblendfunc[0] = GL_DST_COLOR;
4508                 t->customblendfunc[1] = GL_ZERO;
4509                 break;
4510         case DRAWFLAG_2XMODULATE:
4511                 t->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_BLENDED;
4512                 t->currentmaterialflags = t->basematerialflags;
4513                 t->customblendfunc[0] = GL_DST_COLOR;
4514                 t->customblendfunc[1] = GL_SRC_COLOR;
4515                 break;
4516         case DRAWFLAG_SCREEN:
4517                 t->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_BLENDED;
4518                 t->currentmaterialflags = t->basematerialflags;
4519                 t->customblendfunc[0] = GL_ONE_MINUS_DST_COLOR;
4520                 t->customblendfunc[1] = GL_ONE;
4521                 break;
4522         default:
4523                 break;
4524         }
4525         return t;
4526 }
4527
4528 msurface_t *Mod_Mesh_AddSurface(model_t *mod, texture_t *tex, qbool batchwithprevioussurface)
4529 {
4530         msurface_t *surf;
4531         // batch if possible; primarily useful for UI rendering where bounding boxes don't matter
4532         if (batchwithprevioussurface && mod->num_surfaces > 0 && mod->data_surfaces[mod->num_surfaces - 1].texture == tex)
4533                 return mod->data_surfaces + mod->num_surfaces - 1;
4534         // create new surface
4535         if (mod->max_surfaces == mod->num_surfaces)
4536         {
4537                 mod->max_surfaces = 2 * max(mod->num_surfaces, 64);
4538                 mod->data_surfaces = (msurface_t *)Mem_Realloc(mod->mempool, mod->data_surfaces, mod->max_surfaces * sizeof(*mod->data_surfaces));
4539                 mod->modelsurfaces_sorted = (int *)Mem_Realloc(mod->mempool, mod->modelsurfaces_sorted, mod->max_surfaces * sizeof(*mod->modelsurfaces_sorted));
4540         }
4541         surf = mod->data_surfaces + mod->num_surfaces;
4542         mod->num_surfaces++;
4543         memset(surf, 0, sizeof(*surf));
4544         surf->texture = tex;
4545         surf->num_firsttriangle = mod->surfmesh.num_triangles;
4546         surf->num_firstvertex = mod->surfmesh.num_vertices;
4547         if (tex->basematerialflags & (MATERIALFLAG_SKY))
4548                 mod->DrawSky = R_Mod_DrawSky;
4549         if (tex->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
4550                 mod->DrawAddWaterPlanes = R_Mod_DrawAddWaterPlanes;
4551         return surf;
4552 }
4553
4554 int Mod_Mesh_IndexForVertex(model_t *mod, msurface_t *surf, float x, float y, float z, float nx, float ny, float nz, float s, float t, float u, float v, float r, float g, float b, float a)
4555 {
4556         int hashindex, h, vnum, mask;
4557         surfmesh_t *mesh = &mod->surfmesh;
4558         if (mesh->max_vertices == mesh->num_vertices)
4559         {
4560                 mesh->max_vertices = max(mesh->num_vertices * 2, 256);
4561                 mesh->data_vertex3f = (float *)Mem_Realloc(mod->mempool, mesh->data_vertex3f, mesh->max_vertices * sizeof(float[3]));
4562                 mesh->data_svector3f = (float *)Mem_Realloc(mod->mempool, mesh->data_svector3f, mesh->max_vertices * sizeof(float[3]));
4563                 mesh->data_tvector3f = (float *)Mem_Realloc(mod->mempool, mesh->data_tvector3f, mesh->max_vertices * sizeof(float[3]));
4564                 mesh->data_normal3f = (float *)Mem_Realloc(mod->mempool, mesh->data_normal3f, mesh->max_vertices * sizeof(float[3]));
4565                 mesh->data_texcoordtexture2f = (float *)Mem_Realloc(mod->mempool, mesh->data_texcoordtexture2f, mesh->max_vertices * sizeof(float[2]));
4566                 mesh->data_texcoordlightmap2f = (float *)Mem_Realloc(mod->mempool, mesh->data_texcoordlightmap2f, mesh->max_vertices * sizeof(float[2]));
4567                 mesh->data_lightmapcolor4f = (float *)Mem_Realloc(mod->mempool, mesh->data_lightmapcolor4f, mesh->max_vertices * sizeof(float[4]));
4568                 // rebuild the hash table
4569                 mesh->num_vertexhashsize = 4 * mesh->max_vertices;
4570                 mesh->num_vertexhashsize &= ~(mesh->num_vertexhashsize - 1); // round down to pow2
4571                 mesh->data_vertexhash = (int *)Mem_Realloc(mod->mempool, mesh->data_vertexhash, mesh->num_vertexhashsize * sizeof(*mesh->data_vertexhash));
4572                 memset(mesh->data_vertexhash, -1, mesh->num_vertexhashsize * sizeof(*mesh->data_vertexhash));
4573                 mask = mod->surfmesh.num_vertexhashsize - 1;
4574                 // no need to hash the vertices for the entire model, the latest surface will suffice.
4575                 for (vnum = surf ? surf->num_firstvertex : 0; vnum < mesh->num_vertices; vnum++)
4576                 {
4577                         // this uses prime numbers intentionally for computing the hash
4578                         hashindex = (unsigned int)(mesh->data_vertex3f[vnum * 3 + 0] * 2003 + mesh->data_vertex3f[vnum * 3 + 1] * 4001 + mesh->data_vertex3f[vnum * 3 + 2] * 7919 + mesh->data_normal3f[vnum * 3 + 0] * 4097 + mesh->data_normal3f[vnum * 3 + 1] * 257 + mesh->data_normal3f[vnum * 3 + 2] * 17) & mask;
4579                         for (h = hashindex; mesh->data_vertexhash[h] >= 0; h = (h + 1) & mask)
4580                                 ; // just iterate until we find the terminator
4581                         mesh->data_vertexhash[h] = vnum;
4582                 }
4583         }
4584         mask = mod->surfmesh.num_vertexhashsize - 1;
4585         // this uses prime numbers intentionally for computing the hash
4586         hashindex = (unsigned int)(x * 2003 + y * 4001 + z * 7919 + nx * 4097 + ny * 257 + nz * 17) & mask;
4587         // when possible find an identical vertex within the same surface and return it
4588         for(h = hashindex;(vnum = mesh->data_vertexhash[h]) >= 0;h = (h + 1) & mask)
4589         {
4590                 if (vnum >= surf->num_firstvertex
4591                  && mesh->data_vertex3f[vnum * 3 + 0] == x && mesh->data_vertex3f[vnum * 3 + 1] == y && mesh->data_vertex3f[vnum * 3 + 2] == z
4592                  && mesh->data_normal3f[vnum * 3 + 0] == nx && mesh->data_normal3f[vnum * 3 + 1] == ny && mesh->data_normal3f[vnum * 3 + 2] == nz
4593                  && mesh->data_texcoordtexture2f[vnum * 2 + 0] == s && mesh->data_texcoordtexture2f[vnum * 2 + 1] == t
4594                  && mesh->data_texcoordlightmap2f[vnum * 2 + 0] == u && mesh->data_texcoordlightmap2f[vnum * 2 + 1] == v
4595                  && mesh->data_lightmapcolor4f[vnum * 4 + 0] == r && mesh->data_lightmapcolor4f[vnum * 4 + 1] == g && mesh->data_lightmapcolor4f[vnum * 4 + 2] == b && mesh->data_lightmapcolor4f[vnum * 4 + 3] == a)
4596                         return vnum;
4597         }
4598         // add the new vertex
4599         vnum = mesh->num_vertices++;
4600         if (surf->num_vertices > 0)
4601         {
4602                 if (surf->mins[0] > x) surf->mins[0] = x;
4603                 if (surf->mins[1] > y) surf->mins[1] = y;
4604                 if (surf->mins[2] > z) surf->mins[2] = z;
4605                 if (surf->maxs[0] < x) surf->maxs[0] = x;
4606                 if (surf->maxs[1] < y) surf->maxs[1] = y;
4607                 if (surf->maxs[2] < z) surf->maxs[2] = z;
4608         }
4609         else
4610         {
4611                 VectorSet(surf->mins, x, y, z);
4612                 VectorSet(surf->maxs, x, y, z);
4613         }
4614         surf->num_vertices = mesh->num_vertices - surf->num_firstvertex;
4615         mesh->data_vertexhash[h] = vnum;
4616         mesh->data_vertex3f[vnum * 3 + 0] = x;
4617         mesh->data_vertex3f[vnum * 3 + 1] = y;
4618         mesh->data_vertex3f[vnum * 3 + 2] = z;
4619         mesh->data_normal3f[vnum * 3 + 0] = nx;
4620         mesh->data_normal3f[vnum * 3 + 1] = ny;
4621         mesh->data_normal3f[vnum * 3 + 2] = nz;
4622         mesh->data_texcoordtexture2f[vnum * 2 + 0] = s;
4623         mesh->data_texcoordtexture2f[vnum * 2 + 1] = t;
4624         mesh->data_texcoordlightmap2f[vnum * 2 + 0] = u;
4625         mesh->data_texcoordlightmap2f[vnum * 2 + 1] = v;
4626         mesh->data_lightmapcolor4f[vnum * 4 + 0] = r;
4627         mesh->data_lightmapcolor4f[vnum * 4 + 1] = g;
4628         mesh->data_lightmapcolor4f[vnum * 4 + 2] = b;
4629         mesh->data_lightmapcolor4f[vnum * 4 + 3] = a;
4630         return vnum;
4631 }
4632
4633 void Mod_Mesh_AddTriangle(model_t *mod, msurface_t *surf, int e0, int e1, int e2)
4634 {
4635         surfmesh_t *mesh = &mod->surfmesh;
4636         if (mesh->max_triangles == mesh->num_triangles)
4637         {
4638                 mesh->max_triangles = 2 * max(mesh->num_triangles, 128);
4639                 mesh->data_element3s = (unsigned short *)Mem_Realloc(mod->mempool, mesh->data_element3s, mesh->max_triangles * sizeof(unsigned short[3]));
4640                 mesh->data_element3i = (int *)Mem_Realloc(mod->mempool, mesh->data_element3i, mesh->max_triangles * sizeof(int[3]));
4641         }
4642         mesh->data_element3s[mesh->num_triangles * 3 + 0] = e0;
4643         mesh->data_element3s[mesh->num_triangles * 3 + 1] = e1;
4644         mesh->data_element3s[mesh->num_triangles * 3 + 2] = e2;
4645         mesh->data_element3i[mesh->num_triangles * 3 + 0] = e0;
4646         mesh->data_element3i[mesh->num_triangles * 3 + 1] = e1;
4647         mesh->data_element3i[mesh->num_triangles * 3 + 2] = e2;
4648         mesh->num_triangles++;
4649         surf->num_triangles++;
4650 }
4651
4652 static void Mod_Mesh_MakeSortedSurfaces(model_t *mod)
4653 {
4654         int i, j;
4655         texture_t *tex;
4656
4657         // build the sorted surfaces list properly to reduce material setup
4658         // this is easy because we're just sorting on texture and don't care about the order of textures
4659         mod->submodelsurfaces_start = 0;
4660         mod->submodelsurfaces_end = 0;
4661         for (i = 0; i < mod->num_surfaces; i++)
4662                 mod->data_surfaces[i].included = false;
4663         for (i = 0; i < mod->num_surfaces; i++)
4664         {
4665                 if (mod->data_surfaces[i].included)
4666                         continue;
4667                 tex = mod->data_surfaces[i].texture;
4668                 // j = i is intentional
4669                 for (j = i; j < mod->num_surfaces; j++)
4670                 {
4671                         if (!mod->data_surfaces[j].included && mod->data_surfaces[j].texture == tex)
4672                         {
4673                                 mod->data_surfaces[j].included = 1;
4674                                 mod->modelsurfaces_sorted[mod->submodelsurfaces_end++] = j;
4675                         }
4676                 }
4677         }
4678 }
4679
4680 static void Mod_Mesh_ComputeBounds(model_t *mod)
4681 {
4682         int i;
4683         vec_t x2a, x2b, y2a, y2b, z2a, z2b, x2, y2, z2, yawradius, rotatedradius;
4684
4685         if (mod->surfmesh.num_vertices > 0)
4686         {
4687                 // calculate normalmins/normalmaxs
4688                 VectorCopy(mod->surfmesh.data_vertex3f, mod->normalmins);
4689                 VectorCopy(mod->surfmesh.data_vertex3f, mod->normalmaxs);
4690                 for (i = 1; i < mod->surfmesh.num_vertices; i++)
4691                 {
4692                         float x = mod->surfmesh.data_vertex3f[i * 3 + 0];
4693                         float y = mod->surfmesh.data_vertex3f[i * 3 + 1];
4694                         float z = mod->surfmesh.data_vertex3f[i * 3 + 2];
4695                         // expand bounds to include this vertex
4696                         if (mod->normalmins[0] > x) mod->normalmins[0] = x;
4697                         if (mod->normalmins[1] > y) mod->normalmins[1] = y;
4698                         if (mod->normalmins[2] > z) mod->normalmins[2] = z;
4699                         if (mod->normalmaxs[0] < x) mod->normalmaxs[0] = x;
4700                         if (mod->normalmaxs[1] < y) mod->normalmaxs[1] = y;
4701                         if (mod->normalmaxs[2] < z) mod->normalmaxs[2] = z;
4702                 }
4703                 // calculate yawmins/yawmaxs, rotatedmins/maxs from normalmins/maxs
4704                 // (fast but less accurate than doing it per vertex)
4705                 x2a = mod->normalmins[0] * mod->normalmins[0];
4706                 x2b = mod->normalmaxs[0] * mod->normalmaxs[0];
4707                 y2a = mod->normalmins[1] * mod->normalmins[1];
4708                 y2b = mod->normalmaxs[1] * mod->normalmaxs[1];
4709                 z2a = mod->normalmins[2] * mod->normalmins[2];
4710                 z2b = mod->normalmaxs[2] * mod->normalmaxs[2];
4711                 x2 = max(x2a, x2b);
4712                 y2 = max(y2a, y2b);
4713                 z2 = max(z2a, z2b);
4714                 yawradius = sqrt(x2 + y2);
4715                 rotatedradius = sqrt(x2 + y2 + z2);
4716                 VectorSet(mod->yawmins, -yawradius, -yawradius, mod->normalmins[2]);
4717                 VectorSet(mod->yawmaxs, yawradius, yawradius, mod->normalmaxs[2]);
4718                 VectorSet(mod->rotatedmins, -rotatedradius, -rotatedradius, -rotatedradius);
4719                 VectorSet(mod->rotatedmaxs, rotatedradius, rotatedradius, rotatedradius);
4720                 mod->radius = rotatedradius;
4721                 mod->radius2 = x2 + y2 + z2;
4722         }
4723         else
4724         {
4725                 VectorClear(mod->normalmins);
4726                 VectorClear(mod->normalmaxs);
4727                 VectorClear(mod->yawmins);
4728                 VectorClear(mod->yawmaxs);
4729                 VectorClear(mod->rotatedmins);
4730                 VectorClear(mod->rotatedmaxs);
4731                 mod->radius = 0;
4732                 mod->radius2 = 0;
4733         }
4734 }
4735
4736 void Mod_Mesh_Validate(model_t *mod)
4737 {
4738         int i;
4739         qbool warned = false;
4740         for (i = 0; i < mod->num_surfaces; i++)
4741         {
4742                 msurface_t *surf = mod->data_surfaces + i;
4743                 int *e = mod->surfmesh.data_element3i + surf->num_firsttriangle * 3;
4744                 int first = surf->num_firstvertex;
4745                 int end = surf->num_firstvertex + surf->num_vertices;
4746                 int j;
4747                 for (j = 0;j < surf->num_triangles * 3;j++)
4748                 {
4749                         if (e[j] < first || e[j] >= end)
4750                         {
4751                                 if (!warned)
4752                                         Con_DPrintf("Mod_Mesh_Validate: detected corrupt surface - debug me!\n");
4753                                 warned = true;
4754                                 e[j] = first;
4755                         }
4756                 }
4757         }
4758 }
4759
4760 static void Mod_Mesh_UploadDynamicBuffers(model_t *mod)
4761 {
4762         mod->surfmesh.data_element3s_indexbuffer = mod->surfmesh.data_element3s ? R_BufferData_Store(mod->surfmesh.num_triangles * sizeof(short[3]), mod->surfmesh.data_element3s, R_BUFFERDATA_INDEX16, &mod->surfmesh.data_element3s_bufferoffset) : NULL;
4763         mod->surfmesh.data_element3i_indexbuffer = mod->surfmesh.data_element3i ? R_BufferData_Store(mod->surfmesh.num_triangles * sizeof(int[3]), mod->surfmesh.data_element3i, R_BUFFERDATA_INDEX32, &mod->surfmesh.data_element3i_bufferoffset) : NULL;
4764         mod->surfmesh.data_vertex3f_vertexbuffer = mod->surfmesh.data_vertex3f ? R_BufferData_Store(mod->surfmesh.num_vertices * sizeof(float[3]), mod->surfmesh.data_vertex3f, R_BUFFERDATA_VERTEX, &mod->surfmesh.data_vertex3f_bufferoffset) : NULL;
4765         mod->surfmesh.data_svector3f_vertexbuffer = mod->surfmesh.data_svector3f ? R_BufferData_Store(mod->surfmesh.num_vertices * sizeof(float[3]), mod->surfmesh.data_svector3f, R_BUFFERDATA_VERTEX, &mod->surfmesh.data_svector3f_bufferoffset) : NULL;
4766         mod->surfmesh.data_tvector3f_vertexbuffer = mod->surfmesh.data_tvector3f ? R_BufferData_Store(mod->surfmesh.num_vertices * sizeof(float[3]), mod->surfmesh.data_tvector3f, R_BUFFERDATA_VERTEX, &mod->surfmesh.data_tvector3f_bufferoffset) : NULL;
4767         mod->surfmesh.data_normal3f_vertexbuffer = mod->surfmesh.data_normal3f ? R_BufferData_Store(mod->surfmesh.num_vertices * sizeof(float[3]), mod->surfmesh.data_normal3f, R_BUFFERDATA_VERTEX, &mod->surfmesh.data_normal3f_bufferoffset) : NULL;
4768         mod->surfmesh.data_texcoordtexture2f_vertexbuffer = mod->surfmesh.data_texcoordtexture2f ? R_BufferData_Store(mod->surfmesh.num_vertices * sizeof(float[2]), mod->surfmesh.data_texcoordtexture2f, R_BUFFERDATA_VERTEX, &mod->surfmesh.data_texcoordtexture2f_bufferoffset) : NULL;
4769         mod->surfmesh.data_texcoordlightmap2f_vertexbuffer = mod->surfmesh.data_texcoordlightmap2f ? R_BufferData_Store(mod->surfmesh.num_vertices * sizeof(float[2]), mod->surfmesh.data_texcoordlightmap2f, R_BUFFERDATA_VERTEX, &mod->surfmesh.data_texcoordlightmap2f_bufferoffset) : NULL;
4770         mod->surfmesh.data_lightmapcolor4f_vertexbuffer = mod->surfmesh.data_lightmapcolor4f ? R_BufferData_Store(mod->surfmesh.num_vertices * sizeof(float[4]), mod->surfmesh.data_lightmapcolor4f, R_BUFFERDATA_VERTEX, &mod->surfmesh.data_lightmapcolor4f_bufferoffset) : NULL;
4771         mod->surfmesh.data_skeletalindex4ub_vertexbuffer = mod->surfmesh.data_skeletalindex4ub ? R_BufferData_Store(mod->surfmesh.num_vertices * sizeof(unsigned char[4]), mod->surfmesh.data_skeletalindex4ub, R_BUFFERDATA_VERTEX, &mod->surfmesh.data_skeletalindex4ub_bufferoffset) : NULL;
4772         mod->surfmesh.data_skeletalweight4ub_vertexbuffer = mod->surfmesh.data_skeletalweight4ub ? R_BufferData_Store(mod->surfmesh.num_vertices * sizeof(unsigned char[4]), mod->surfmesh.data_skeletalweight4ub, R_BUFFERDATA_VERTEX, &mod->surfmesh.data_skeletalweight4ub_bufferoffset) : NULL;
4773 }
4774
4775 void Mod_Mesh_Finalize(model_t *mod)
4776 {
4777         if (gl_paranoid.integer)
4778                 Mod_Mesh_Validate(mod);
4779         Mod_Mesh_ComputeBounds(mod);
4780         Mod_Mesh_MakeSortedSurfaces(mod);
4781         if(!r_refdef.draw2dstage)
4782                 Mod_BuildTextureVectorsFromNormals(0, mod->surfmesh.num_vertices, mod->surfmesh.num_triangles, mod->surfmesh.data_vertex3f, mod->surfmesh.data_texcoordtexture2f, mod->surfmesh.data_normal3f, mod->surfmesh.data_element3i, mod->surfmesh.data_svector3f, mod->surfmesh.data_tvector3f, true);
4783         Mod_Mesh_UploadDynamicBuffers(mod);
4784 }