model_shared.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // models.c -- model loading and caching
  21
  22 // models are the only shared resource between a client and server running
  23 // on the same machine.
  24
  25 #include "quakedef.h"
  26 #include "image.h"
  27 #include "r_shadow.h"
  28 #include "polygon.h"
  29
  30 cvar_t r_mipskins = {CVAR_CLIENT | CVAR_SAVE, "r_mipskins", "0", "mipmaps model skins so they render faster in the distance and do not display noise artifacts, can cause discoloration of skins if they contain undesirable border colors"};
  31 cvar_t r_mipnormalmaps = {CVAR_CLIENT | CVAR_SAVE, "r_mipnormalmaps", "1", "mipmaps normalmaps (turning it off looks sharper but may have aliasing)"};
  32 cvar_t mod_generatelightmaps_unitspersample = {CVAR_CLIENT | CVAR_SAVE, "mod_generatelightmaps_unitspersample", "8", "lightmap resolution"};
  33 cvar_t mod_generatelightmaps_borderpixels = {CVAR_CLIENT | CVAR_SAVE, "mod_generatelightmaps_borderpixels", "2", "extra space around polygons to prevent sampling artifacts"};
  34 cvar_t mod_generatelightmaps_texturesize = {CVAR_CLIENT | CVAR_SAVE, "mod_generatelightmaps_texturesize", "1024", "size of lightmap textures"};
  35 cvar_t mod_generatelightmaps_lightmapsamples = {CVAR_CLIENT | CVAR_SAVE, "mod_generatelightmaps_lightmapsamples", "16", "number of shadow tests done per lightmap pixel"};
  36 cvar_t mod_generatelightmaps_vertexsamples = {CVAR_CLIENT | CVAR_SAVE, "mod_generatelightmaps_vertexsamples", "16", "number of shadow tests done per vertex"};
  37 cvar_t mod_generatelightmaps_gridsamples = {CVAR_CLIENT | CVAR_SAVE, "mod_generatelightmaps_gridsamples", "64", "number of shadow tests done per lightgrid cell"};
  38 cvar_t mod_generatelightmaps_lightmapradius = {CVAR_CLIENT | CVAR_SAVE, "mod_generatelightmaps_lightmapradius", "16", "sampling area around each lightmap pixel"};
  39 cvar_t mod_generatelightmaps_vertexradius = {CVAR_CLIENT | CVAR_SAVE, "mod_generatelightmaps_vertexradius", "16", "sampling area around each vertex"};
  40 cvar_t mod_generatelightmaps_gridradius = {CVAR_CLIENT | CVAR_SAVE, "mod_generatelightmaps_gridradius", "64", "sampling area around each lightgrid cell center"};
  41
  42 dp_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, "ZYMOTICMODEL", 13, Mod_ZYMOTICMODEL_Load},
  59         {NULL, "DARKPLACESMODEL", 16, Mod_DARKPLACESMODEL_Load},
  60         {NULL, "PSKMODEL", 9, Mod_PSKMODEL_Load},
  61         {NULL, "INTERQUAKEMODEL", 16, Mod_INTERQUAKEMODEL_Load},
  62         {"map", NULL, 0, Mod_MAP_Load},
  63         {NULL, NULL, 0, NULL}
  64 };
  65
  66 static mempool_t *mod_mempool;
  67 static memexpandablearray_t models;
  68
  69 static mempool_t* q3shaders_mem;
  70 typedef struct q3shader_hash_entry_s
  71 {
  72   shader_t shader;
  73   struct q3shader_hash_entry_s* chain;
  74 } q3shader_hash_entry_t;
  75 #define Q3SHADER_HASH_SIZE  1021
  76 typedef struct q3shader_data_s
  77 {
  78   memexpandablearray_t hash_entries;
  79   q3shader_hash_entry_t hash[Q3SHADER_HASH_SIZE];
  80   memexpandablearray_t char_ptrs;
  81 } q3shader_data_t;
  82 static q3shader_data_t* q3shader_data;
  83
  84 static void mod_start(void)
  85 {
  86         int i, count;
  87         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
  88         dp_model_t *mod;
  89
  90         SCR_PushLoadingScreen("Loading models", 1.0);
  91         count = 0;
  92         for (i = 0;i < nummodels;i++)
  93                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  94                         if (mod->used)
  95                                 ++count;
  96         for (i = 0;i < nummodels;i++)
  97                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  98                         if (mod->used)
  99                         {
 100                                 SCR_PushLoadingScreen(mod->name, 1.0 / count);
 101                                 Mod_LoadModel(mod, true, false);
 102                                 SCR_PopLoadingScreen(false);
 103                         }
 104         SCR_PopLoadingScreen(false);
 105 }
 106
 107 static void mod_shutdown(void)
 108 {
 109         int i;
 110         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 111         dp_model_t *mod;
 112
 113         for (i = 0;i < nummodels;i++)
 114                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && (mod->loaded || mod->mempool))
 115                         Mod_UnloadModel(mod);
 116
 117         Mod_FreeQ3Shaders();
 118         Mod_Skeletal_FreeBuffers();
 119 }
 120
 121 static void mod_newmap(void)
 122 {
 123         msurface_t *surface;
 124         int i, j, k, l, surfacenum, ssize, tsize;
 125         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 126         dp_model_t *mod;
 127
 128         for (i = 0;i < nummodels;i++)
 129         {
 130                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool)
 131                 {
 132                         for (j = 0;j < mod->num_textures && mod->data_textures;j++)
 133                         {
 134                                 // note that materialshaderpass and backgroundshaderpass point to shaderpasses[] and so do the pre/post shader ranges, so this catches all of them...
 135                                 for (l = 0; l < Q3SHADER_MAXLAYERS; l++)
 136                                         if (mod->data_textures[j].shaderpasses[l])
 137                                                 for (k = 0; k < mod->data_textures[j].shaderpasses[l]->numframes; k++)
 138                                                         R_SkinFrame_MarkUsed(mod->data_textures[j].shaderpasses[l]->skinframes[k]);
 139                         }
 140                         if (mod->brush.solidskyskinframe)
 141                                 R_SkinFrame_MarkUsed(mod->brush.solidskyskinframe);
 142                         if (mod->brush.alphaskyskinframe)
 143                                 R_SkinFrame_MarkUsed(mod->brush.alphaskyskinframe);
 144                 }
 145         }
 146
 147         if (!cl_stainmaps_clearonload.integer)
 148                 return;
 149
 150         for (i = 0;i < nummodels;i++)
 151         {
 152                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool && mod->data_surfaces)
 153                 {
 154                         for (surfacenum = 0, surface = mod->data_surfaces;surfacenum < mod->num_surfaces;surfacenum++, surface++)
 155                         {
 156                                 if (surface->lightmapinfo && surface->lightmapinfo->stainsamples)
 157                                 {
 158                                         ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
 159                                         tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
 160                                         memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
 161                                         mod->brushq1.lightmapupdateflags[surfacenum] = true;
 162                                 }
 163                         }
 164                 }
 165         }
 166 }
 167
 168 /*
 169 ===============
 170 Mod_Init
 171 ===============
 172 */
 173 static void Mod_Print_f(cmd_state_t *cmd);
 174 static void Mod_Precache_f(cmd_state_t *cmd);
 175 static void Mod_Decompile_f(cmd_state_t *cmd);
 176 static void Mod_GenerateLightmaps_f(cmd_state_t *cmd);
 177 void Mod_Init (void)
 178 {
 179         mod_mempool = Mem_AllocPool("modelinfo", 0, NULL);
 180         Mem_ExpandableArray_NewArray(&models, mod_mempool, sizeof(dp_model_t), 16);
 181
 182         Mod_BrushInit();
 183         Mod_AliasInit();
 184         Mod_SpriteInit();
 185
 186         Cvar_RegisterVariable(&r_mipskins);
 187         Cvar_RegisterVariable(&r_mipnormalmaps);
 188         Cvar_RegisterVariable(&mod_generatelightmaps_unitspersample);
 189         Cvar_RegisterVariable(&mod_generatelightmaps_borderpixels);
 190         Cvar_RegisterVariable(&mod_generatelightmaps_texturesize);
 191
 192         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapsamples);
 193         Cvar_RegisterVariable(&mod_generatelightmaps_vertexsamples);
 194         Cvar_RegisterVariable(&mod_generatelightmaps_gridsamples);
 195         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapradius);
 196         Cvar_RegisterVariable(&mod_generatelightmaps_vertexradius);
 197         Cvar_RegisterVariable(&mod_generatelightmaps_gridradius);
 198
 199         Cmd_AddCommand(CMD_CLIENT, "modellist", Mod_Print_f, "prints a list of loaded models");
 200         Cmd_AddCommand(CMD_CLIENT, "modelprecache", Mod_Precache_f, "load a model");
 201         Cmd_AddCommand(CMD_CLIENT, "modeldecompile", Mod_Decompile_f, "exports a model in several formats for editing purposes");
 202         Cmd_AddCommand(CMD_CLIENT, "mod_generatelightmaps", Mod_GenerateLightmaps_f, "rebuilds lighting on current worldmodel");
 203 }
 204
 205 void Mod_RenderInit(void)
 206 {
 207         R_RegisterModule("Models", mod_start, mod_shutdown, mod_newmap, NULL, NULL);
 208 }
 209
 210 void Mod_UnloadModel (dp_model_t *mod)
 211 {
 212         char name[MAX_QPATH];
 213         qbool used;
 214         dp_model_t *parentmodel;
 215
 216         if (developer_loading.integer)
 217                 Con_Printf("unloading model %s\n", mod->name);
 218
 219         strlcpy(name, mod->name, sizeof(name));
 220         parentmodel = mod->brush.parentmodel;
 221         used = mod->used;
 222         if (mod->mempool)
 223         {
 224                 if (mod->surfmesh.data_element3i_indexbuffer && !mod->surfmesh.data_element3i_indexbuffer->isdynamic)
 225                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3i_indexbuffer);
 226                 mod->surfmesh.data_element3i_indexbuffer = NULL;
 227                 if (mod->surfmesh.data_element3s_indexbuffer && !mod->surfmesh.data_element3s_indexbuffer->isdynamic)
 228                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3s_indexbuffer);
 229                 mod->surfmesh.data_element3s_indexbuffer = NULL;
 230                 if (mod->surfmesh.data_vertex3f_vertexbuffer && !mod->surfmesh.data_vertex3f_vertexbuffer->isdynamic)
 231                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_vertex3f_vertexbuffer);
 232                 mod->surfmesh.data_vertex3f_vertexbuffer = NULL;
 233                 mod->surfmesh.data_svector3f_vertexbuffer = NULL;
 234                 mod->surfmesh.data_tvector3f_vertexbuffer = NULL;
 235                 mod->surfmesh.data_normal3f_vertexbuffer = NULL;
 236                 mod->surfmesh.data_texcoordtexture2f_vertexbuffer = NULL;
 237                 mod->surfmesh.data_texcoordlightmap2f_vertexbuffer = NULL;
 238                 mod->surfmesh.data_lightmapcolor4f_vertexbuffer = NULL;
 239                 mod->surfmesh.data_skeletalindex4ub_vertexbuffer = NULL;
 240                 mod->surfmesh.data_skeletalweight4ub_vertexbuffer = NULL;
 241         }
 242         // free textures/memory attached to the model
 243         R_FreeTexturePool(&mod->texturepool);
 244         Mem_FreePool(&mod->mempool);
 245         // clear the struct to make it available
 246         memset(mod, 0, sizeof(dp_model_t));
 247         // restore the fields we want to preserve
 248         strlcpy(mod->name, name, sizeof(mod->name));
 249         mod->brush.parentmodel = parentmodel;
 250         mod->used = used;
 251         mod->loaded = false;
 252 }
 253
 254 static void R_Model_Null_Draw(entity_render_t *ent)
 255 {
 256         return;
 257 }
 258
 259
 260 typedef void (*mod_framegroupify_parsegroups_t) (unsigned int i, int start, int len, float fps, qbool loop, const char *name, void *pass);
 261
 262 static int Mod_FrameGroupify_ParseGroups(const char *buf, mod_framegroupify_parsegroups_t cb, void *pass)
 263 {
 264         const char *bufptr;
 265         int start, len;
 266         float fps;
 267         unsigned int i;
 268         qbool loop;
 269         char name[64];
 270
 271         bufptr = buf;
 272         i = 0;
 273         while(bufptr)
 274         {
 275                 // an anim scene!
 276
 277                 // REQUIRED: fetch start
 278                 COM_ParseToken_Simple(&bufptr, true, false, true);
 279                 if (!bufptr)
 280                         break; // end of file
 281                 if (!strcmp(com_token, "\n"))
 282                         continue; // empty line
 283                 start = atoi(com_token);
 284
 285                 // REQUIRED: fetch length
 286                 COM_ParseToken_Simple(&bufptr, true, false, true);
 287                 if (!bufptr || !strcmp(com_token, "\n"))
 288                 {
 289                         Con_Printf("framegroups file: missing number of frames\n");
 290                         continue;
 291                 }
 292                 len = atoi(com_token);
 293
 294                 // OPTIONAL args start
 295                 COM_ParseToken_Simple(&bufptr, true, false, true);
 296
 297                 // OPTIONAL: fetch fps
 298                 fps = 20;
 299                 if (bufptr && strcmp(com_token, "\n"))
 300                 {
 301                         fps = atof(com_token);
 302                         COM_ParseToken_Simple(&bufptr, true, false, true);
 303                 }
 304
 305                 // OPTIONAL: fetch loopflag
 306                 loop = true;
 307                 if (bufptr && strcmp(com_token, "\n"))
 308                 {
 309                         loop = (atoi(com_token) != 0);
 310                         COM_ParseToken_Simple(&bufptr, true, false, true);
 311                 }
 312
 313                 // OPTIONAL: fetch name
 314                 name[0] = 0;
 315                 if (bufptr && strcmp(com_token, "\n"))
 316                 {
 317                         strlcpy(name, com_token, sizeof(name));
 318                         COM_ParseToken_Simple(&bufptr, true, false, true);
 319                 }
 320
 321                 // OPTIONAL: remaining unsupported tokens (eat them)
 322                 while (bufptr && strcmp(com_token, "\n"))
 323                         COM_ParseToken_Simple(&bufptr, true, false, true);
 324
 325                 //Con_Printf("data: %d %d %d %f %d (%s)\n", i, start, len, fps, loop, name);
 326
 327                 if(cb)
 328                         cb(i, start, len, fps, loop, (name[0] ? name : NULL), pass);
 329                 ++i;
 330         }
 331
 332         return i;
 333 }
 334
 335 static void Mod_FrameGroupify_ParseGroups_Store (unsigned int i, int start, int len, float fps, qbool loop, const char *name, void *pass)
 336 {
 337         dp_model_t *mod = (dp_model_t *) pass;
 338         animscene_t *anim = &mod->animscenes[i];
 339         if(name)
 340                 strlcpy(anim->name, name, sizeof(anim[i].name));
 341         else
 342                 dpsnprintf(anim->name, sizeof(anim[i].name), "groupified_%d_anim", i);
 343         anim->firstframe = bound(0, start, mod->num_poses - 1);
 344         anim->framecount = bound(1, len, mod->num_poses - anim->firstframe);
 345         anim->framerate = max(1, fps);
 346         anim->loop = !!loop;
 347         //Con_Printf("frame group %d is %d %d %f %d\n", i, start, len, fps, loop);
 348 }
 349
 350 static void Mod_FrameGroupify(dp_model_t *mod, const char *buf)
 351 {
 352         unsigned int cnt;
 353
 354         // 0. count
 355         cnt = Mod_FrameGroupify_ParseGroups(buf, NULL, NULL);
 356         if(!cnt)
 357         {
 358                 Con_Printf("no scene found in framegroups file, aborting\n");
 359                 return;
 360         }
 361         mod->numframes = cnt;
 362
 363         // 1. reallocate
 364         // (we do not free the previous animscenes, but model unloading will free the pool owning them, so it's okay)
 365         mod->animscenes = (animscene_t *) Mem_Alloc(mod->mempool, sizeof(animscene_t) * mod->numframes);
 366
 367         // 2. parse
 368         Mod_FrameGroupify_ParseGroups(buf, Mod_FrameGroupify_ParseGroups_Store, mod);
 369 }
 370
 371 static void Mod_FindPotentialDeforms(dp_model_t *mod)
 372 {
 373         int i, j;
 374         texture_t *texture;
 375         mod->wantnormals = false;
 376         mod->wanttangents = false;
 377         for (i = 0;i < mod->num_textures;i++)
 378         {
 379                 texture = mod->data_textures + i;
 380                 if (texture->materialshaderpass && texture->materialshaderpass->tcgen.tcgen == Q3TCGEN_ENVIRONMENT)
 381                         mod->wantnormals = true;
 382                 if (texture->materialshaderpass && texture->materialshaderpass->tcgen.tcgen == Q3TCGEN_ENVIRONMENT)
 383                         mod->wantnormals = true;
 384                 for (j = 0;j < Q3MAXDEFORMS;j++)
 385                 {
 386                         if (texture->deforms[j].deform == Q3DEFORM_AUTOSPRITE)
 387                         {
 388                                 mod->wanttangents = true;
 389                                 mod->wantnormals = true;
 390                                 break;
 391                         }
 392                         if (texture->deforms[j].deform != Q3DEFORM_NONE)
 393                                 mod->wantnormals = true;
 394                 }
 395         }
 396 }
 397
 398 /*
 399 ==================
 400 Mod_LoadModel
 401
 402 Loads a model
 403 ==================
 404 */
 405 dp_model_t *Mod_LoadModel(dp_model_t *mod, qbool crash, qbool checkdisk)
 406 {
 407         unsigned int crc;
 408         void *buf;
 409         fs_offset_t filesize = 0;
 410         char vabuf[1024];
 411
 412         mod->used = true;
 413
 414         if (mod->name[0] == '*') // submodel
 415                 return mod;
 416
 417         if (!strcmp(mod->name, "null"))
 418         {
 419                 if(mod->loaded)
 420                         return mod;
 421
 422                 if (mod->loaded || mod->mempool)
 423                         Mod_UnloadModel(mod);
 424
 425                 if (developer_loading.integer)
 426                         Con_Printf("loading model %s\n", mod->name);
 427
 428                 mod->used = true;
 429                 mod->crc = (unsigned int)-1;
 430                 mod->loaded = false;
 431
 432                 VectorClear(mod->normalmins);
 433                 VectorClear(mod->normalmaxs);
 434                 VectorClear(mod->yawmins);
 435                 VectorClear(mod->yawmaxs);
 436                 VectorClear(mod->rotatedmins);
 437                 VectorClear(mod->rotatedmaxs);
 438
 439                 mod->modeldatatypestring = "null";
 440                 mod->type = mod_null;
 441                 mod->Draw = R_Model_Null_Draw;
 442                 mod->numframes = 2;
 443                 mod->numskins = 1;
 444
 445                 // no fatal errors occurred, so this model is ready to use.
 446                 mod->loaded = true;
 447
 448                 return mod;
 449         }
 450
 451         crc = 0;
 452         buf = NULL;
 453
 454         // even if the model is loaded it still may need reloading...
 455
 456         // if it is not loaded or checkdisk is true we need to calculate the crc
 457         if (!mod->loaded || checkdisk)
 458         {
 459                 if (checkdisk && mod->loaded)
 460                         Con_DPrintf("checking model %s\n", mod->name);
 461                 buf = FS_LoadFile (mod->name, tempmempool, false, &filesize);
 462                 if (buf)
 463                 {
 464                         crc = CRC_Block((unsigned char *)buf, filesize);
 465                         // we need to reload the model if the crc does not match
 466                         if (mod->crc != crc)
 467                                 mod->loaded = false;
 468                 }
 469         }
 470
 471         // if the model is already loaded and checks passed, just return
 472         if (mod->loaded)
 473         {
 474                 if (buf)
 475                         Mem_Free(buf);
 476                 return mod;
 477         }
 478
 479         if (developer_loading.integer)
 480                 Con_Printf("loading model %s\n", mod->name);
 481
 482         SCR_PushLoadingScreen(mod->name, 1);
 483
 484         // LadyHavoc: unload the existing model in this slot (if there is one)
 485         if (mod->loaded || mod->mempool)
 486                 Mod_UnloadModel(mod);
 487
 488         // load the model
 489         mod->used = true;
 490         mod->crc = crc;
 491         // errors can prevent the corresponding mod->loaded = true;
 492         mod->loaded = false;
 493
 494         // default lightmap scale
 495         mod->lightmapscale = 1;
 496
 497         // default model radius and bounding box (mainly for missing models)
 498         mod->radius = 16;
 499         VectorSet(mod->normalmins, -mod->radius, -mod->radius, -mod->radius);
 500         VectorSet(mod->normalmaxs, mod->radius, mod->radius, mod->radius);
 501         VectorSet(mod->yawmins, -mod->radius, -mod->radius, -mod->radius);
 502         VectorSet(mod->yawmaxs, mod->radius, mod->radius, mod->radius);
 503         VectorSet(mod->rotatedmins, -mod->radius, -mod->radius, -mod->radius);
 504         VectorSet(mod->rotatedmaxs, mod->radius, mod->radius, mod->radius);
 505
 506         if (!q3shaders_mem)
 507         {
 508                 // load q3 shaders for the first time, or after a level change
 509                 Mod_LoadQ3Shaders();
 510         }
 511
 512         if (buf)
 513         {
 514                 int i;
 515                 const char *ext = FS_FileExtension(mod->name);
 516                 char *bufend = (char *)buf + filesize;
 517                 // all models use memory, so allocate a memory pool
 518                 mod->mempool = Mem_AllocPool(mod->name, 0, NULL);
 519
 520                 // call the apropriate loader
 521                 loadmodel = mod;
 522
 523                 // Try matching magic bytes.
 524                 for (i = 0; loader[i].Load; i++)
 525                 {
 526                         // Headerless formats can just load based on extension. Otherwise match the magic string.
 527                         if((loader[i].extension && !strcasecmp(ext, loader[i].extension) && !loader[i].header) ||
 528                            (loader[i].header && !memcmp(buf, loader[i].header, loader[i].headersize)))
 529                         {
 530                                 // Matched. Load it.
 531                                 loader[i].Load(mod, buf, bufend);
 532                                 Mem_Free(buf);
 533
 534                                 Mod_FindPotentialDeforms(mod);
 535
 536                                 buf = FS_LoadFile(va(vabuf, sizeof(vabuf), "%s.framegroups", mod->name), tempmempool, false, &filesize);
 537                                 if(buf)
 538                                 {
 539                                         Mod_FrameGroupify(mod, (const char *)buf);
 540                                         Mem_Free(buf);
 541                                 }
 542
 543                                 Mod_BuildVBOs();
 544                                 break;
 545                         }
 546                 }
 547                 if(!loader[i].Load)
 548                         Con_Printf(CON_ERROR "Mod_LoadModel: model \"%s\" is of unknown/unsupported type\n", mod->name);
 549         }
 550         else if (crash)
 551                 // LadyHavoc: Sys_Error was *ANNOYING*
 552                 Con_Printf (CON_ERROR "Mod_LoadModel: %s not found\n", mod->name);
 553
 554         // no fatal errors occurred, so this model is ready to use.
 555         mod->loaded = true;
 556
 557         SCR_PopLoadingScreen(false);
 558
 559         return mod;
 560 }
 561
 562 void Mod_ClearUsed(void)
 563 {
 564         int i;
 565         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 566         dp_model_t *mod;
 567         for (i = 0;i < nummodels;i++)
 568                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0])
 569                         mod->used = false;
 570 }
 571
 572 void Mod_PurgeUnused(void)
 573 {
 574         int i;
 575         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 576         dp_model_t *mod;
 577         for (i = 0;i < nummodels;i++)
 578         {
 579                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !mod->used)
 580                 {
 581                         Mod_UnloadModel(mod);
 582                         Mem_ExpandableArray_FreeRecord(&models, mod);
 583                 }
 584         }
 585 }
 586
 587 /*
 588 ==================
 589 Mod_FindName
 590
 591 ==================
 592 */
 593 dp_model_t *Mod_FindName(const char *name, const char *parentname)
 594 {
 595         int i;
 596         int nummodels;
 597         dp_model_t *mod;
 598
 599         if (!parentname)
 600                 parentname = "";
 601
 602         nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 603
 604         if (!name[0])
 605                 Host_Error ("Mod_ForName: empty name");
 606
 607         // search the currently loaded models
 608         for (i = 0;i < nummodels;i++)
 609         {
 610                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !strcmp(mod->name, name) && ((!mod->brush.parentmodel && !parentname[0]) || (mod->brush.parentmodel && parentname[0] && !strcmp(mod->brush.parentmodel->name, parentname))))
 611                 {
 612                         mod->used = true;
 613                         return mod;
 614                 }
 615         }
 616
 617         // no match found, create a new one
 618         mod = (dp_model_t *) Mem_ExpandableArray_AllocRecord(&models);
 619         strlcpy(mod->name, name, sizeof(mod->name));
 620         if (parentname[0])
 621                 mod->brush.parentmodel = Mod_FindName(parentname, NULL);
 622         else
 623                 mod->brush.parentmodel = NULL;
 624         mod->loaded = false;
 625         mod->used = true;
 626         return mod;
 627 }
 628
 629 /*
 630 ==================
 631 Mod_ForName
 632
 633 Loads in a model for the given name
 634 ==================
 635 */
 636 dp_model_t *Mod_ForName(const char *name, qbool crash, qbool checkdisk, const char *parentname)
 637 {
 638         dp_model_t *model;
 639         model = Mod_FindName(name, parentname);
 640         if (!model->loaded || checkdisk)
 641                 Mod_LoadModel(model, crash, checkdisk);
 642         return model;
 643 }
 644
 645 /*
 646 ==================
 647 Mod_Reload
 648
 649 Reloads all models if they have changed
 650 ==================
 651 */
 652 void Mod_Reload(void)
 653 {
 654         int i, count;
 655         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 656         dp_model_t *mod;
 657
 658         SCR_PushLoadingScreen("Reloading models", 1.0);
 659         count = 0;
 660         for (i = 0;i < nummodels;i++)
 661                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 662                         ++count;
 663         for (i = 0;i < nummodels;i++)
 664                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 665                 {
 666                         SCR_PushLoadingScreen(mod->name, 1.0 / count);
 667                         Mod_LoadModel(mod, true, true);
 668                         SCR_PopLoadingScreen(false);
 669                 }
 670         SCR_PopLoadingScreen(false);
 671 }
 672
 673 unsigned char *mod_base;
 674
 675
 676 //=============================================================================
 677
 678 /*
 679 ================
 680 Mod_Print
 681 ================
 682 */
 683 static void Mod_Print_f(cmd_state_t *cmd)
 684 {
 685         int i;
 686         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 687         dp_model_t *mod;
 688
 689         Con_Print("Loaded models:\n");
 690         for (i = 0;i < nummodels;i++)
 691         {
 692                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
 693                 {
 694                         if (mod->brush.numsubmodels)
 695                                 Con_Printf("%4iK %s (%i submodels)\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name, mod->brush.numsubmodels);
 696                         else
 697                                 Con_Printf("%4iK %s\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name);
 698                 }
 699         }
 700 }
 701
 702 /*
 703 ================
 704 Mod_Precache
 705 ================
 706 */
 707 static void Mod_Precache_f(cmd_state_t *cmd)
 708 {
 709         if (Cmd_Argc(cmd) == 2)
 710                 Mod_ForName(Cmd_Argv(cmd, 1), false, true, Cmd_Argv(cmd, 1)[0] == '*' ? cl.model_name[1] : NULL);
 711         else
 712                 Con_Print("usage: modelprecache <filename>\n");
 713 }
 714
 715 int Mod_BuildVertexRemapTableFromElements(int numelements, const int *elements, int numvertices, int *remapvertices)
 716 {
 717         int i, count;
 718         unsigned char *used;
 719         used = (unsigned char *)Mem_Alloc(tempmempool, numvertices);
 720         memset(used, 0, numvertices);
 721         for (i = 0;i < numelements;i++)
 722                 used[elements[i]] = 1;
 723         for (i = 0, count = 0;i < numvertices;i++)
 724                 remapvertices[i] = used[i] ? count++ : -1;
 725         Mem_Free(used);
 726         return count;
 727 }
 728
 729 qbool Mod_ValidateElements(int *element3i, unsigned short *element3s, int numtriangles, int firstvertex, int numvertices, const char *filename, int fileline)
 730 {
 731         int first = firstvertex, last = first + numvertices - 1, numelements = numtriangles * 3;
 732         int i;
 733         int invalidintcount = 0, invalidintexample = 0;
 734         int invalidshortcount = 0, invalidshortexample = 0;
 735         int invalidmismatchcount = 0, invalidmismatchexample = 0;
 736         if (element3i)
 737         {
 738                 for (i = 0; i < numelements; i++)
 739                 {
 740                         if (element3i[i] < first || element3i[i] > last)
 741                         {
 742                                 invalidintcount++;
 743                                 invalidintexample = i;
 744                         }
 745                 }
 746         }
 747         if (element3s)
 748         {
 749                 for (i = 0; i < numelements; i++)
 750                 {
 751                         if (element3s[i] < first || element3s[i] > last)
 752                         {
 753                                 invalidintcount++;
 754                                 invalidintexample = i;
 755                         }
 756                 }
 757         }
 758         if (element3i && element3s)
 759         {
 760                 for (i = 0; i < numelements; i++)
 761                 {
 762                         if (element3s[i] != element3i[i])
 763                         {
 764                                 invalidmismatchcount++;
 765                                 invalidmismatchexample = i;
 766                         }
 767                 }
 768         }
 769         if (invalidintcount || invalidshortcount || invalidmismatchcount)
 770         {
 771                 Con_Printf("Mod_ValidateElements(%i, %i, %i, %p, %p) called at %s:%d", numelements, first, last, (void *)element3i, (void *)element3s, filename, fileline);
 772                 Con_Printf(", %i elements are invalid in element3i (example: element3i[%i] == %i)", invalidintcount, invalidintexample, element3i ? element3i[invalidintexample] : 0);
 773                 Con_Printf(", %i elements are invalid in element3s (example: element3s[%i] == %i)", invalidshortcount, invalidshortexample, element3s ? element3s[invalidshortexample] : 0);
 774                 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);
 775                 Con_Print(".  Please debug the engine code - these elements have been modified to not crash, but nothing more.\n");
 776
 777                 // edit the elements to make them safer, as the driver will crash otherwise
 778                 if (element3i)
 779                         for (i = 0; i < numelements; i++)
 780                                 if (element3i[i] < first || element3i[i] > last)
 781                                         element3i[i] = first;
 782                 if (element3s)
 783                         for (i = 0; i < numelements; i++)
 784                                 if (element3s[i] < first || element3s[i] > last)
 785                                         element3s[i] = first;
 786                 if (element3i && element3s)
 787                         for (i = 0; i < numelements; i++)
 788                                 if (element3s[i] != element3i[i])
 789                                         element3s[i] = element3i[i];
 790
 791                 return false;
 792         }
 793         return true;
 794 }
 795
 796 // warning: this is an expensive function!
 797 void Mod_BuildNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const int *elements, float *normal3f, qbool areaweighting)
 798 {
 799         int i, j;
 800         const int *element;
 801         float *vectorNormal;
 802         float areaNormal[3];
 803         // clear the vectors
 804         memset(normal3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 805         // process each vertex of each triangle and accumulate the results
 806         // use area-averaging, to make triangles with a big area have a bigger
 807         // weighting on the vertex normal than triangles with a small area
 808         // to do so, just add the 'normals' together (the bigger the area
 809         // the greater the length of the normal is
 810         element = elements;
 811         for (i = 0; i < numtriangles; i++, element += 3)
 812         {
 813                 TriangleNormal(
 814                         vertex3f + element[0] * 3,
 815                         vertex3f + element[1] * 3,
 816                         vertex3f + element[2] * 3,
 817                         areaNormal
 818                         );
 819
 820                 if (!areaweighting)
 821                         VectorNormalize(areaNormal);
 822
 823                 for (j = 0;j < 3;j++)
 824                 {
 825                         vectorNormal = normal3f + element[j] * 3;
 826                         vectorNormal[0] += areaNormal[0];
 827                         vectorNormal[1] += areaNormal[1];
 828                         vectorNormal[2] += areaNormal[2];
 829                 }
 830         }
 831         // and just normalize the accumulated vertex normal in the end
 832         vectorNormal = normal3f + 3 * firstvertex;
 833         for (i = 0; i < numvertices; i++, vectorNormal += 3)
 834                 VectorNormalize(vectorNormal);
 835 }
 836
 837 #if 0
 838 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)
 839 {
 840         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 841         // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 842         // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 843
 844         // 6 multiply, 9 subtract
 845         VectorSubtract(v1, v0, v10);
 846         VectorSubtract(v2, v0, v20);
 847         normal3f[0] = v20[1] * v10[2] - v20[2] * v10[1];
 848         normal3f[1] = v20[2] * v10[0] - v20[0] * v10[2];
 849         normal3f[2] = v20[0] * v10[1] - v20[1] * v10[0];
 850         // 12 multiply, 10 subtract
 851         tc10[1] = tc1[1] - tc0[1];
 852         tc20[1] = tc2[1] - tc0[1];
 853         svector3f[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 854         svector3f[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 855         svector3f[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 856         tc10[0] = tc1[0] - tc0[0];
 857         tc20[0] = tc2[0] - tc0[0];
 858         tvector3f[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 859         tvector3f[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 860         tvector3f[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 861         // 12 multiply, 4 add, 6 subtract
 862         f = DotProduct(svector3f, normal3f);
 863         svector3f[0] -= f * normal3f[0];
 864         svector3f[1] -= f * normal3f[1];
 865         svector3f[2] -= f * normal3f[2];
 866         f = DotProduct(tvector3f, normal3f);
 867         tvector3f[0] -= f * normal3f[0];
 868         tvector3f[1] -= f * normal3f[1];
 869         tvector3f[2] -= f * normal3f[2];
 870         // if texture is mapped the wrong way (counterclockwise), the tangents
 871         // have to be flipped, this is detected by calculating a normal from the
 872         // two tangents, and seeing if it is opposite the surface normal
 873         // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 874         CrossProduct(tvector3f, svector3f, tangentcross);
 875         if (DotProduct(tangentcross, normal3f) < 0)
 876         {
 877                 VectorNegate(svector3f, svector3f);
 878                 VectorNegate(tvector3f, tvector3f);
 879         }
 880 }
 881 #endif
 882
 883 // warning: this is a very expensive function!
 884 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)
 885 {
 886         int i, tnum;
 887         float sdir[3], tdir[3], normal[3], *svec, *tvec;
 888         const float *v0, *v1, *v2, *tc0, *tc1, *tc2, *n;
 889         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 890         const int *e;
 891         // clear the vectors
 892         memset(svector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 893         memset(tvector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 894         // process each vertex of each triangle and accumulate the results
 895         for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
 896         {
 897                 v0 = vertex3f + e[0] * 3;
 898                 v1 = vertex3f + e[1] * 3;
 899                 v2 = vertex3f + e[2] * 3;
 900                 tc0 = texcoord2f + e[0] * 2;
 901                 tc1 = texcoord2f + e[1] * 2;
 902                 tc2 = texcoord2f + e[2] * 2;
 903
 904                 // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 905                 // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 906
 907                 // calculate the edge directions and surface normal
 908                 // 6 multiply, 9 subtract
 909                 VectorSubtract(v1, v0, v10);
 910                 VectorSubtract(v2, v0, v20);
 911                 normal[0] = v20[1] * v10[2] - v20[2] * v10[1];
 912                 normal[1] = v20[2] * v10[0] - v20[0] * v10[2];
 913                 normal[2] = v20[0] * v10[1] - v20[1] * v10[0];
 914
 915                 // calculate the tangents
 916                 // 12 multiply, 10 subtract
 917                 tc10[1] = tc1[1] - tc0[1];
 918                 tc20[1] = tc2[1] - tc0[1];
 919                 sdir[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 920                 sdir[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 921                 sdir[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 922                 tc10[0] = tc1[0] - tc0[0];
 923                 tc20[0] = tc2[0] - tc0[0];
 924                 tdir[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 925                 tdir[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 926                 tdir[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 927
 928                 // if texture is mapped the wrong way (counterclockwise), the tangents
 929                 // have to be flipped, this is detected by calculating a normal from the
 930                 // two tangents, and seeing if it is opposite the surface normal
 931                 // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 932                 CrossProduct(tdir, sdir, tangentcross);
 933                 if (DotProduct(tangentcross, normal) < 0)
 934                 {
 935                         VectorNegate(sdir, sdir);
 936                         VectorNegate(tdir, tdir);
 937                 }
 938
 939                 if (!areaweighting)
 940                 {
 941                         VectorNormalize(sdir);
 942                         VectorNormalize(tdir);
 943                 }
 944                 for (i = 0;i < 3;i++)
 945                 {
 946                         VectorAdd(svector3f + e[i]*3, sdir, svector3f + e[i]*3);
 947                         VectorAdd(tvector3f + e[i]*3, tdir, tvector3f + e[i]*3);
 948                 }
 949         }
 950         // make the tangents completely perpendicular to the surface normal, and
 951         // then normalize them
 952         // 16 assignments, 2 divide, 2 sqrt, 2 negates, 14 adds, 24 multiplies
 953         for (i = 0, svec = svector3f + 3 * firstvertex, tvec = tvector3f + 3 * firstvertex, n = normal3f + 3 * firstvertex;i < numvertices;i++, svec += 3, tvec += 3, n += 3)
 954         {
 955                 f = -DotProduct(svec, n);
 956                 VectorMA(svec, f, n, svec);
 957                 VectorNormalize(svec);
 958                 f = -DotProduct(tvec, n);
 959                 VectorMA(tvec, f, n, tvec);
 960                 VectorNormalize(tvec);
 961         }
 962 }
 963
 964 void Mod_AllocSurfMesh(mempool_t *mempool, int numvertices, int numtriangles, qbool lightmapoffsets, qbool vertexcolors)
 965 {
 966         unsigned char *data;
 967         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));
 968         loadmodel->surfmesh.num_vertices = numvertices;
 969         loadmodel->surfmesh.num_triangles = numtriangles;
 970         if (loadmodel->surfmesh.num_vertices)
 971         {
 972                 loadmodel->surfmesh.data_vertex3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 973                 loadmodel->surfmesh.data_svector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 974                 loadmodel->surfmesh.data_tvector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 975                 loadmodel->surfmesh.data_normal3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 976                 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 977                 loadmodel->surfmesh.data_texcoordlightmap2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 978                 if (vertexcolors)
 979                         loadmodel->surfmesh.data_lightmapcolor4f = (float *)data, data += sizeof(float[4]) * loadmodel->surfmesh.num_vertices;
 980                 if (lightmapoffsets)
 981                         loadmodel->surfmesh.data_lightmapoffsets = (int *)data, data += sizeof(int) * loadmodel->surfmesh.num_vertices;
 982         }
 983         if (loadmodel->surfmesh.num_triangles)
 984         {
 985                 loadmodel->surfmesh.data_element3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
 986                 if (loadmodel->surfmesh.num_vertices <= 65536)
 987                         loadmodel->surfmesh.data_element3s = (unsigned short *)data, data += sizeof(unsigned short[3]) * loadmodel->surfmesh.num_triangles;
 988         }
 989 }
 990
 991 shadowmesh_t *Mod_ShadowMesh_Alloc(mempool_t *mempool, int maxverts, int maxtriangles)
 992 {
 993         shadowmesh_t *newmesh;
 994         newmesh = (shadowmesh_t *)Mem_Alloc(mempool, sizeof(shadowmesh_t));
 995         newmesh->mempool = mempool;
 996         newmesh->maxverts = maxverts;
 997         newmesh->maxtriangles = maxtriangles;
 998         newmesh->numverts = 0;
 999         newmesh->numtriangles = 0;
1000         memset(newmesh->sideoffsets, 0, sizeof(newmesh->sideoffsets));
1001         memset(newmesh->sidetotals, 0, sizeof(newmesh->sidetotals));
1002
1003         newmesh->vertex3f = (float *)Mem_Alloc(mempool, maxverts * sizeof(float[3]));
1004         newmesh->element3i = (int *)Mem_Alloc(mempool, maxtriangles * sizeof(int[3]));
1005         newmesh->vertexhashtable = (shadowmeshvertexhash_t **)Mem_Alloc(mempool, SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *));
1006         newmesh->vertexhashentries = (shadowmeshvertexhash_t *)Mem_Alloc(mempool, maxverts * sizeof(shadowmeshvertexhash_t));
1007         return newmesh;
1008 }
1009
1010 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, const float *vertex3f)
1011 {
1012         int hashindex, vnum;
1013         shadowmeshvertexhash_t *hash;
1014         // this uses prime numbers intentionally
1015         hashindex = (unsigned int) (vertex3f[0] * 2003 + vertex3f[1] * 4001 + vertex3f[2] * 7919) % SHADOWMESHVERTEXHASH;
1016         for (hash = mesh->vertexhashtable[hashindex];hash;hash = hash->next)
1017         {
1018                 vnum = (hash - mesh->vertexhashentries);
1019                 if (mesh->vertex3f[vnum * 3 + 0] == vertex3f[0] && mesh->vertex3f[vnum * 3 + 1] == vertex3f[1] && mesh->vertex3f[vnum * 3 + 2] == vertex3f[2])
1020                         return hash - mesh->vertexhashentries;
1021         }
1022         vnum = mesh->numverts++;
1023         hash = mesh->vertexhashentries + vnum;
1024         hash->next = mesh->vertexhashtable[hashindex];
1025         mesh->vertexhashtable[hashindex] = hash;
1026         mesh->vertex3f[vnum * 3 + 0] = vertex3f[0];
1027         mesh->vertex3f[vnum * 3 + 1] = vertex3f[1];
1028         mesh->vertex3f[vnum * 3 + 2] = vertex3f[2];
1029         return vnum;
1030 }
1031
1032 void Mod_ShadowMesh_AddMesh(shadowmesh_t *mesh, const float *vertex3f, int numtris, const int *element3i)
1033 {
1034         int i;
1035
1036         for (i = 0;i < numtris;i++)
1037         {
1038                 mesh->element3i[mesh->numtriangles * 3 + 0] = Mod_ShadowMesh_AddVertex(mesh, vertex3f + 3 * element3i[i * 3 + 0]);
1039                 mesh->element3i[mesh->numtriangles * 3 + 1] = Mod_ShadowMesh_AddVertex(mesh, vertex3f + 3 * element3i[i * 3 + 1]);
1040                 mesh->element3i[mesh->numtriangles * 3 + 2] = Mod_ShadowMesh_AddVertex(mesh, vertex3f + 3 * element3i[i * 3 + 2]);
1041                 mesh->numtriangles++;
1042         }
1043
1044         // the triangle calculation can take a while, so let's do a keepalive here
1045         CL_KeepaliveMessage(false);
1046 }
1047
1048 shadowmesh_t *Mod_ShadowMesh_Begin(mempool_t *mempool, int maxverts, int maxtriangles)
1049 {
1050         // the preparation before shadow mesh initialization can take a while, so let's do a keepalive here
1051         CL_KeepaliveMessage(false);
1052
1053         return Mod_ShadowMesh_Alloc(mempool, maxverts, maxtriangles);
1054 }
1055
1056 static void Mod_ShadowMesh_CreateVBOs(shadowmesh_t *mesh)
1057 {
1058         if (!mesh->numverts)
1059                 return;
1060
1061         // make sure we don't crash inside the driver if something went wrong, as it's annoying to debug
1062         Mod_ValidateElements(mesh->element3i, mesh->element3s, mesh->numtriangles, 0, mesh->numverts, __FILE__, __LINE__);
1063
1064         // upload short indices as a buffer
1065         if (mesh->element3s && !mesh->element3s_indexbuffer)
1066                 mesh->element3s_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3s, mesh->numtriangles * sizeof(short[3]), "shadowmesh", true, false, false, true);
1067
1068         // upload int indices as a buffer
1069         if (mesh->element3i && !mesh->element3i_indexbuffer && !mesh->element3s)
1070                 mesh->element3i_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3i, mesh->numtriangles * sizeof(int[3]), "shadowmesh", true, false, false, false);
1071
1072         // vertex buffer is several arrays and we put them in the same buffer
1073         //
1074         // is this wise?  the texcoordtexture2f array is used with dynamic
1075         // vertex/svector/tvector/normal when rendering animated models, on the
1076         // other hand animated models don't use a lot of vertices anyway...
1077         if (!mesh->vbo_vertexbuffer)
1078         {
1079                 mesh->vbooffset_vertex3f = 0;
1080                 mesh->vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mesh->vertex3f, mesh->numverts * sizeof(float[3]), "shadowmesh", false, false, false, false);
1081         }
1082 }
1083
1084 shadowmesh_t *Mod_ShadowMesh_Finish(shadowmesh_t *mesh, qbool createvbo)
1085 {
1086         if (mesh->numverts >= 3 && mesh->numtriangles >= 1)
1087         {
1088                 if (mesh->vertexhashentries)
1089                         Mem_Free(mesh->vertexhashentries);
1090                 mesh->vertexhashentries = NULL;
1091                 if (mesh->vertexhashtable)
1092                         Mem_Free(mesh->vertexhashtable);
1093                 mesh->vertexhashtable = NULL;
1094                 if (mesh->maxverts > mesh->numverts)
1095                 {
1096                         mesh->vertex3f = (float *)Mem_Realloc(mesh->mempool, mesh->vertex3f, mesh->numverts * sizeof(float[3]));
1097                         mesh->maxverts = mesh->numverts;
1098                 }
1099                 if (mesh->maxtriangles > mesh->numtriangles)
1100                 {
1101                         mesh->element3i = (int *)Mem_Realloc(mesh->mempool, mesh->element3i, mesh->numtriangles * sizeof(int[3]));
1102                         mesh->maxtriangles = mesh->numtriangles;
1103                 }
1104                 if (mesh->numverts <= 65536)
1105                 {
1106                         int i;
1107                         mesh->element3s = (unsigned short *)Mem_Alloc(mesh->mempool, mesh->numtriangles * sizeof(unsigned short[3]));
1108                         for (i = 0;i < mesh->numtriangles*3;i++)
1109                                 mesh->element3s[i] = mesh->element3i[i];
1110                 }
1111                 if (createvbo)
1112                         Mod_ShadowMesh_CreateVBOs(mesh);
1113         }
1114
1115         // this can take a while, so let's do a keepalive here
1116         CL_KeepaliveMessage(false);
1117
1118         return mesh;
1119 }
1120
1121 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *mesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius)
1122 {
1123         int i;
1124         vec3_t nmins, nmaxs, ncenter, temp;
1125         float nradius2, dist2, *v;
1126         VectorClear(nmins);
1127         VectorClear(nmaxs);
1128         // calculate bbox
1129         VectorCopy(mesh->vertex3f, nmins);
1130         VectorCopy(mesh->vertex3f, nmaxs);
1131         for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1132         {
1133                 if (nmins[0] > v[0]) { nmins[0] = v[0]; } if (nmaxs[0] < v[0]) { nmaxs[0] = v[0]; }
1134                 if (nmins[1] > v[1]) { nmins[1] = v[1]; } if (nmaxs[1] < v[1]) { nmaxs[1] = v[1]; }
1135                 if (nmins[2] > v[2]) { nmins[2] = v[2]; } if (nmaxs[2] < v[2]) { nmaxs[2] = v[2]; }
1136         }
1137         // calculate center and radius
1138         ncenter[0] = (nmins[0] + nmaxs[0]) * 0.5f;
1139         ncenter[1] = (nmins[1] + nmaxs[1]) * 0.5f;
1140         ncenter[2] = (nmins[2] + nmaxs[2]) * 0.5f;
1141         nradius2 = 0;
1142         for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1143         {
1144                 VectorSubtract(v, ncenter, temp);
1145                 dist2 = DotProduct(temp, temp);
1146                 if (nradius2 < dist2)
1147                         nradius2 = dist2;
1148         }
1149         // return data
1150         if (mins)
1151                 VectorCopy(nmins, mins);
1152         if (maxs)
1153                 VectorCopy(nmaxs, maxs);
1154         if (center)
1155                 VectorCopy(ncenter, center);
1156         if (radius)
1157                 *radius = sqrt(nradius2);
1158 }
1159
1160 void Mod_ShadowMesh_Free(shadowmesh_t *mesh)
1161 {
1162         if (mesh->element3i_indexbuffer)
1163                 R_Mesh_DestroyMeshBuffer(mesh->element3i_indexbuffer);
1164         if (mesh->element3s_indexbuffer)
1165                 R_Mesh_DestroyMeshBuffer(mesh->element3s_indexbuffer);
1166         if (mesh->vbo_vertexbuffer)
1167                 R_Mesh_DestroyMeshBuffer(mesh->vbo_vertexbuffer);
1168         if (mesh->vertex3f)
1169                 Mem_Free(mesh->vertex3f);
1170         if (mesh->element3i)
1171                 Mem_Free(mesh->element3i);
1172         if (mesh->element3s)
1173                 Mem_Free(mesh->element3s);
1174         if (mesh->vertexhashentries)
1175                 Mem_Free(mesh->vertexhashentries);
1176         if (mesh->vertexhashtable)
1177                 Mem_Free(mesh->vertexhashtable);
1178         Mem_Free(mesh);
1179 }
1180
1181 void Mod_CreateCollisionMesh(dp_model_t *mod)
1182 {
1183         int k, numcollisionmeshtriangles;
1184         qbool usesinglecollisionmesh = false;
1185         const msurface_t *surface = NULL;
1186
1187         mempool_t *mempool = mod->mempool;
1188         if (!mempool && mod->brush.parentmodel)
1189                 mempool = mod->brush.parentmodel->mempool;
1190         // make a single combined collision mesh for physics engine use
1191         // TODO rewrite this to use the collision brushes as source, to fix issues with e.g. common/caulk which creates no drawsurface
1192         numcollisionmeshtriangles = 0;
1193         for (k = 0;k < mod->nummodelsurfaces;k++)
1194         {
1195                 surface = mod->data_surfaces + mod->firstmodelsurface + k;
1196                 if (!strcmp(surface->texture->name, "collision") || !strcmp(surface->texture->name, "collisionconvex")) // found collision mesh
1197                 {
1198                         usesinglecollisionmesh = true;
1199                         numcollisionmeshtriangles = surface->num_triangles;
1200                         break;
1201                 }
1202                 if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1203                         continue;
1204                 numcollisionmeshtriangles += surface->num_triangles;
1205         }
1206         mod->brush.collisionmesh = Mod_ShadowMesh_Begin(mempool, numcollisionmeshtriangles * 3, numcollisionmeshtriangles);
1207         if (usesinglecollisionmesh)
1208                 Mod_ShadowMesh_AddMesh(mod->brush.collisionmesh, mod->surfmesh.data_vertex3f, surface->num_triangles, (mod->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
1209         else
1210         {
1211                 for (k = 0;k < mod->nummodelsurfaces;k++)
1212                 {
1213                         surface = mod->data_surfaces + mod->firstmodelsurface + k;
1214                         if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1215                                 continue;
1216                         Mod_ShadowMesh_AddMesh(mod->brush.collisionmesh, mod->surfmesh.data_vertex3f, surface->num_triangles, (mod->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
1217                 }
1218         }
1219         mod->brush.collisionmesh = Mod_ShadowMesh_Finish(mod->brush.collisionmesh, false);
1220 }
1221
1222 #if 0
1223 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)
1224 {
1225         float v[3], tc[3];
1226         v[0] = ix;
1227         v[1] = iy;
1228         if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
1229                 v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
1230         else
1231                 v[2] = 0;
1232         Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
1233         Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
1234         texcoord2f[0] = tc[0];
1235         texcoord2f[1] = tc[1];
1236 }
1237
1238 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)
1239 {
1240         float vup[3], vdown[3], vleft[3], vright[3];
1241         float tcup[3], tcdown[3], tcleft[3], tcright[3];
1242         float sv[3], tv[3], nl[3];
1243         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
1244         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
1245         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
1246         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
1247         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
1248         Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
1249         Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
1250         VectorAdd(svector3f, sv, svector3f);
1251         VectorAdd(tvector3f, tv, tvector3f);
1252         VectorAdd(normal3f, nl, normal3f);
1253         Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
1254         VectorAdd(svector3f, sv, svector3f);
1255         VectorAdd(tvector3f, tv, tvector3f);
1256         VectorAdd(normal3f, nl, normal3f);
1257         Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
1258         VectorAdd(svector3f, sv, svector3f);
1259         VectorAdd(tvector3f, tv, tvector3f);
1260         VectorAdd(normal3f, nl, normal3f);
1261 }
1262
1263 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)
1264 {
1265         int x, y, ix, iy, *e;
1266         e = element3i;
1267         for (y = 0;y < height;y++)
1268         {
1269                 for (x = 0;x < width;x++)
1270                 {
1271                         e[0] = (y + 1) * (width + 1) + (x + 0);
1272                         e[1] = (y + 0) * (width + 1) + (x + 0);
1273                         e[2] = (y + 1) * (width + 1) + (x + 1);
1274                         e[3] = (y + 0) * (width + 1) + (x + 0);
1275                         e[4] = (y + 0) * (width + 1) + (x + 1);
1276                         e[5] = (y + 1) * (width + 1) + (x + 1);
1277                         e += 6;
1278                 }
1279         }
1280         for (y = 0, iy = y1;y < height + 1;y++, iy++)
1281                 for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
1282                         Mod_GetTerrainVertexFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
1283 }
1284 #endif
1285
1286 #if 0
1287 void Mod_Terrain_SurfaceRecurseChunk(dp_model_t *model, int stepsize, int x, int y)
1288 {
1289         float mins[3];
1290         float maxs[3];
1291         float chunkwidth = min(stepsize, model->terrain.width - 1 - x);
1292         float chunkheight = min(stepsize, model->terrain.height - 1 - y);
1293         float viewvector[3];
1294         unsigned int firstvertex;
1295         unsigned int *e;
1296         float *v;
1297         if (chunkwidth < 2 || chunkheight < 2)
1298                 return;
1299         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]);
1300         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]);
1301         viewvector[0] = bound(mins[0], localvieworigin, maxs[0]) - model->terrain.vieworigin[0];
1302         viewvector[1] = bound(mins[1], localvieworigin, maxs[1]) - model->terrain.vieworigin[1];
1303         viewvector[2] = bound(mins[2], localvieworigin, maxs[2]) - model->terrain.vieworigin[2];
1304         if (stepsize > 1 && VectorLength(viewvector) < stepsize*model->terrain.scale[0]*r_terrain_lodscale.value)
1305         {
1306                 // too close for this stepsize, emit as 4 chunks instead
1307                 stepsize /= 2;
1308                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y);
1309                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y);
1310                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y+stepsize);
1311                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y+stepsize);
1312                 return;
1313         }
1314         // emit the geometry at stepsize into our vertex buffer / index buffer
1315         // we add two columns and two rows for skirt
1316         outwidth = chunkwidth+2;
1317         outheight = chunkheight+2;
1318         outwidth2 = outwidth-1;
1319         outheight2 = outheight-1;
1320         outwidth3 = outwidth+1;
1321         outheight3 = outheight+1;
1322         firstvertex = numvertices;
1323         e = model->terrain.element3i + numtriangles;
1324         numtriangles += chunkwidth*chunkheight*2+chunkwidth*2*2+chunkheight*2*2;
1325         v = model->terrain.vertex3f + numvertices;
1326         numvertices += (chunkwidth+1)*(chunkheight+1)+(chunkwidth+1)*2+(chunkheight+1)*2;
1327         // emit the triangles (note: the skirt is treated as two extra rows and two extra columns)
1328         for (ty = 0;ty < outheight;ty++)
1329         {
1330                 for (tx = 0;tx < outwidth;tx++)
1331                 {
1332                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1333                         *e++ = firstvertex + (ty  )*outwidth3+(tx+1);
1334                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1335                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1336                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1337                         *e++ = firstvertex + (ty+1)*outwidth3+(tx  );
1338                 }
1339         }
1340         // TODO: emit surface vertices (x+tx*stepsize, y+ty*stepsize)
1341         for (ty = 0;ty <= outheight;ty++)
1342         {
1343                 skirtrow = ty == 0 || ty == outheight;
1344                 ry = y+bound(1, ty, outheight)*stepsize;
1345                 for (tx = 0;tx <= outwidth;tx++)
1346                 {
1347                         skirt = skirtrow || tx == 0 || tx == outwidth;
1348                         rx = x+bound(1, tx, outwidth)*stepsize;
1349                         v[0] = rx*scale[0];
1350                         v[1] = ry*scale[1];
1351                         v[2] = heightmap[ry*terrainwidth+rx]*scale[2];
1352                         v += 3;
1353                 }
1354         }
1355         // TODO: emit skirt vertices
1356 }
1357
1358 void Mod_Terrain_UpdateSurfacesForViewOrigin(dp_model_t *model)
1359 {
1360         for (y = 0;y < model->terrain.size[1];y += model->terrain.
1361         Mod_Terrain_SurfaceRecurseChunk(model, model->terrain.maxstepsize, x, y);
1362         Mod_Terrain_BuildChunk(model,
1363 }
1364 #endif
1365
1366 static int Mod_LoadQ3Shaders_EnumerateWaveFunc(const char *s)
1367 {
1368         int offset = 0;
1369         if (!strncasecmp(s, "user", 4)) // parse stuff like "user1sin", always user<n>func
1370         {
1371                 offset = bound(0, s[4] - '0', 9);
1372                 offset = (offset + 1) << Q3WAVEFUNC_USER_SHIFT;
1373                 s += 4;
1374                 if(*s)
1375                         ++s;
1376         }
1377         if (!strcasecmp(s, "sin"))             return offset | Q3WAVEFUNC_SIN;
1378         if (!strcasecmp(s, "square"))          return offset | Q3WAVEFUNC_SQUARE;
1379         if (!strcasecmp(s, "triangle"))        return offset | Q3WAVEFUNC_TRIANGLE;
1380         if (!strcasecmp(s, "sawtooth"))        return offset | Q3WAVEFUNC_SAWTOOTH;
1381         if (!strcasecmp(s, "inversesawtooth")) return offset | Q3WAVEFUNC_INVERSESAWTOOTH;
1382         if (!strcasecmp(s, "noise"))           return offset | Q3WAVEFUNC_NOISE;
1383         if (!strcasecmp(s, "none"))            return offset | Q3WAVEFUNC_NONE;
1384         Con_DPrintf("Mod_LoadQ3Shaders: unknown wavefunc %s\n", s);
1385         return offset | Q3WAVEFUNC_NONE;
1386 }
1387
1388 void Mod_FreeQ3Shaders(void)
1389 {
1390         Mem_FreePool(&q3shaders_mem);
1391 }
1392
1393 static void Q3Shader_AddToHash (shader_t* shader)
1394 {
1395         unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)shader->name, strlen (shader->name));
1396         q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1397         q3shader_hash_entry_t* lastEntry = NULL;
1398         do
1399         {
1400                 if (strcasecmp (entry->shader.name, shader->name) == 0)
1401                 {
1402                         // redeclaration
1403                         if(shader->dpshaderkill)
1404                         {
1405                                 // killed shader is a redeclarion? we can safely ignore it
1406                                 return;
1407                         }
1408                         else if(entry->shader.dpshaderkill)
1409                         {
1410                                 // replace the old shader!
1411                                 // this will skip the entry allocating part
1412                                 // below and just replace the shader
1413                                 break;
1414                         }
1415                         else
1416                         {
1417                                 unsigned char *start, *end, *start2;
1418                                 start = (unsigned char *) (&shader->Q3SHADERINFO_COMPARE_START);
1419                                 end = ((unsigned char *) (&shader->Q3SHADERINFO_COMPARE_END)) + sizeof(shader->Q3SHADERINFO_COMPARE_END);
1420                                 start2 = (unsigned char *) (&entry->shader.Q3SHADERINFO_COMPARE_START);
1421                                 if(memcmp(start, start2, end - start))
1422                                         Con_DPrintf("Shader '%s' already defined, ignoring mismatching redeclaration\n", shader->name);
1423                                 else
1424                                         Con_DPrintf("Shader '%s' already defined\n", shader->name);
1425                                 return;
1426                         }
1427                 }
1428                 lastEntry = entry;
1429                 entry = entry->chain;
1430         }
1431         while (entry != NULL);
1432         if (entry == NULL)
1433         {
1434                 if (lastEntry->shader.name[0] != 0)
1435                 {
1436                         /* Add to chain */
1437                         q3shader_hash_entry_t* newEntry = (q3shader_hash_entry_t*)
1438                           Mem_ExpandableArray_AllocRecord (&q3shader_data->hash_entries);
1439
1440                         while (lastEntry->chain != NULL) lastEntry = lastEntry->chain;
1441                         lastEntry->chain = newEntry;
1442                         newEntry->chain = NULL;
1443                         lastEntry = newEntry;
1444                 }
1445                 /* else: head of chain, in hash entry array */
1446                 entry = lastEntry;
1447         }
1448         memcpy (&entry->shader, shader, sizeof (shader_t));
1449 }
1450
1451 void Mod_LoadQ3Shaders(void)
1452 {
1453         int j;
1454         int fileindex;
1455         fssearch_t *search;
1456         char *f;
1457         const char *text;
1458         shader_t shader;
1459         q3shaderinfo_layer_t *layer;
1460         int numparameters;
1461         char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
1462         char *custsurfaceparmnames[256]; // VorteX: q3map2 has 64 but well, someone will need more
1463         unsigned long custsurfaceflags[256];
1464         int numcustsurfaceflags;
1465         qbool dpshaderkill;
1466
1467         Mod_FreeQ3Shaders();
1468
1469         q3shaders_mem = Mem_AllocPool("q3shaders", 0, NULL);
1470         q3shader_data = (q3shader_data_t*)Mem_Alloc (q3shaders_mem,
1471                 sizeof (q3shader_data_t));
1472         Mem_ExpandableArray_NewArray (&q3shader_data->hash_entries,
1473                 q3shaders_mem, sizeof (q3shader_hash_entry_t), 256);
1474         Mem_ExpandableArray_NewArray (&q3shader_data->char_ptrs,
1475                 q3shaders_mem, sizeof (char**), 256);
1476
1477         // parse custinfoparms.txt
1478         numcustsurfaceflags = 0;
1479         if ((text = f = (char *)FS_LoadFile("scripts/custinfoparms.txt", tempmempool, false, NULL)) != NULL)
1480         {
1481                 if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1482                         Con_DPrintf("scripts/custinfoparms.txt: contentflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1483                 else
1484                 {
1485                         while (COM_ParseToken_QuakeC(&text, false))
1486                                 if (!strcasecmp(com_token, "}"))
1487                                         break;
1488                         // custom surfaceflags section
1489                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1490                                 Con_DPrintf("scripts/custinfoparms.txt: surfaceflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1491                         else
1492                         {
1493                                 while(COM_ParseToken_QuakeC(&text, false))
1494                                 {
1495                                         if (!strcasecmp(com_token, "}"))
1496                                                 break;
1497                                         // register surfaceflag
1498                                         if (numcustsurfaceflags >= 256)
1499                                         {
1500                                                 Con_Printf("scripts/custinfoparms.txt: surfaceflags section parsing error - max 256 surfaceflags exceeded\n");
1501                                                 break;
1502                                         }
1503                                         // name
1504                                         j = (int)strlen(com_token)+1;
1505                                         custsurfaceparmnames[numcustsurfaceflags] = (char *)Mem_Alloc(tempmempool, j);
1506                                         strlcpy(custsurfaceparmnames[numcustsurfaceflags], com_token, j+1);
1507                                         // value
1508                                         if (COM_ParseToken_QuakeC(&text, false))
1509                                                 custsurfaceflags[numcustsurfaceflags] = strtol(com_token, NULL, 0);
1510                                         else
1511                                                 custsurfaceflags[numcustsurfaceflags] = 0;
1512                                         numcustsurfaceflags++;
1513                                 }
1514                         }
1515                 }
1516                 Mem_Free(f);
1517         }
1518
1519         // parse shaders
1520         search = FS_Search("scripts/*.shader", true, false, NULL);
1521         if (!search)
1522                 return;
1523         for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
1524         {
1525                 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
1526                 if (!f)
1527                         continue;
1528                 while (COM_ParseToken_QuakeC(&text, false))
1529                 {
1530                         memset (&shader, 0, sizeof(shader));
1531                         shader.name[0] = 0;
1532                         shader.surfaceparms = 0;
1533                         shader.surfaceflags = 0;
1534                         shader.textureflags = 0;
1535                         shader.numlayers = 0;
1536                         shader.lighting = false;
1537                         shader.vertexalpha = false;
1538                         shader.textureblendalpha = false;
1539                         shader.skyboxname[0] = 0;
1540                         shader.deforms[0].deform = Q3DEFORM_NONE;
1541                         shader.dpnortlight = false;
1542                         shader.dpshadow = false;
1543                         shader.dpnoshadow = false;
1544                         shader.dpmeshcollisions = false;
1545                         shader.dpshaderkill = false;
1546                         shader.dpreflectcube[0] = 0;
1547                         shader.reflectmin = 0;
1548                         shader.reflectmax = 1;
1549                         shader.refractfactor = 1;
1550                         Vector4Set(shader.refractcolor4f, 1, 1, 1, 1);
1551                         shader.reflectfactor = 1;
1552                         Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
1553                         shader.r_water_wateralpha = 1;
1554                         shader.r_water_waterscroll[0] = 0;
1555                         shader.r_water_waterscroll[1] = 0;
1556                         shader.offsetmapping = (mod_q3shader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
1557                         shader.offsetscale = mod_q3shader_default_offsetmapping_scale.value;
1558                         shader.offsetbias = mod_q3shader_default_offsetmapping_bias.value;
1559                         shader.biaspolygonoffset = mod_q3shader_default_polygonoffset.value;
1560                         shader.biaspolygonfactor = mod_q3shader_default_polygonfactor.value;
1561                         shader.transparentsort = TRANSPARENTSORT_DISTANCE;
1562                         shader.specularscalemod = 1;
1563                         shader.specularpowermod = 1;
1564                         shader.rtlightambient = 0;
1565                         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
1566                         // JUST GREP FOR "specularscalemod = 1".
1567
1568                         strlcpy(shader.name, com_token, sizeof(shader.name));
1569                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1570                         {
1571                                 Con_DPrintf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
1572                                 break;
1573                         }
1574                         while (COM_ParseToken_QuakeC(&text, false))
1575                         {
1576                                 if (!strcasecmp(com_token, "}"))
1577                                         break;
1578                                 if (!strcasecmp(com_token, "{"))
1579                                 {
1580                                         static q3shaderinfo_layer_t dummy;
1581                                         if (shader.numlayers < Q3SHADER_MAXLAYERS)
1582                                         {
1583                                                 layer = shader.layers + shader.numlayers++;
1584                                         }
1585                                         else
1586                                         {
1587                                                 // parse and process it anyway, just don't store it (so a map $lightmap or such stuff still is found)
1588                                                 memset(&dummy, 0, sizeof(dummy));
1589                                                 layer = &dummy;
1590                                         }
1591                                         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1592                                         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1593                                         layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1594                                         layer->blendfunc[0] = GL_ONE;
1595                                         layer->blendfunc[1] = GL_ZERO;
1596                                         while (COM_ParseToken_QuakeC(&text, false))
1597                                         {
1598                                                 if (!strcasecmp(com_token, "}"))
1599                                                         break;
1600                                                 if (!strcasecmp(com_token, "\n"))
1601                                                         continue;
1602                                                 numparameters = 0;
1603                                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1604                                                 {
1605                                                         if (j < TEXTURE_MAXFRAMES + 4)
1606                                                         {
1607                                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1608                                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1609                                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1610                                                                 else
1611                                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1612                                                                 numparameters = j + 1;
1613                                                         }
1614                                                         if (!COM_ParseToken_QuakeC(&text, true))
1615                                                                 break;
1616                                                 }
1617                                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1618                                                 //      parameter[j][0] = 0;
1619                                                 if (developer_insane.integer)
1620                                                 {
1621                                                         Con_DPrintf("%s %i: ", shader.name, shader.numlayers - 1);
1622                                                         for (j = 0;j < numparameters;j++)
1623                                                                 Con_DPrintf(" %s", parameter[j]);
1624                                                         Con_DPrint("\n");
1625                                                 }
1626                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
1627                                                 {
1628                                                         if (numparameters == 2)
1629                                                         {
1630                                                                 if (!strcasecmp(parameter[1], "add"))
1631                                                                 {
1632                                                                         layer->blendfunc[0] = GL_ONE;
1633                                                                         layer->blendfunc[1] = GL_ONE;
1634                                                                 }
1635                                                                 else if (!strcasecmp(parameter[1], "addalpha"))
1636                                                                 {
1637                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1638                                                                         layer->blendfunc[1] = GL_ONE;
1639                                                                 }
1640                                                                 else if (!strcasecmp(parameter[1], "filter"))
1641                                                                 {
1642                                                                         layer->blendfunc[0] = GL_DST_COLOR;
1643                                                                         layer->blendfunc[1] = GL_ZERO;
1644                                                                 }
1645                                                                 else if (!strcasecmp(parameter[1], "blend"))
1646                                                                 {
1647                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1648                                                                         layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
1649                                                                 }
1650                                                         }
1651                                                         else if (numparameters == 3)
1652                                                         {
1653                                                                 int k;
1654                                                                 for (k = 0;k < 2;k++)
1655                                                                 {
1656                                                                         if (!strcasecmp(parameter[k+1], "GL_ONE"))
1657                                                                                 layer->blendfunc[k] = GL_ONE;
1658                                                                         else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
1659                                                                                 layer->blendfunc[k] = GL_ZERO;
1660                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
1661                                                                                 layer->blendfunc[k] = GL_SRC_COLOR;
1662                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
1663                                                                                 layer->blendfunc[k] = GL_SRC_ALPHA;
1664                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
1665                                                                                 layer->blendfunc[k] = GL_DST_COLOR;
1666                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
1667                                                                                 layer->blendfunc[k] = GL_DST_ALPHA;
1668                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
1669                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
1670                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
1671                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
1672                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
1673                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
1674                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
1675                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1676                                                                         else
1677                                                                                 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
1678                                                                 }
1679                                                         }
1680                                                 }
1681                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
1682                                                         layer->alphatest = true;
1683                                                 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
1684                                                 {
1685                                                         if (!strcasecmp(parameter[0], "clampmap"))
1686                                                                 layer->clampmap = true;
1687                                                         layer->numframes = 1;
1688                                                         layer->framerate = 1;
1689                                                         layer->texturename = (char**)Mem_ExpandableArray_AllocRecord (
1690                                                                 &q3shader_data->char_ptrs);
1691                                                         layer->texturename[0] = Mem_strdup (q3shaders_mem, parameter[1]);
1692                                                         if (!strcasecmp(parameter[1], "$lightmap"))
1693                                                                 shader.lighting = true;
1694                                                 }
1695                                                 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
1696                                                 {
1697                                                         int i;
1698                                                         layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
1699                                                         layer->framerate = atof(parameter[1]);
1700                                                         layer->texturename = (char **) Mem_Alloc (q3shaders_mem, sizeof (char*) * layer->numframes);
1701                                                         for (i = 0;i < layer->numframes;i++)
1702                                                                 layer->texturename[i] = Mem_strdup (q3shaders_mem, parameter[i + 2]);
1703                                                 }
1704                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen"))
1705                                                 {
1706                                                         int i;
1707                                                         for (i = 0;i < numparameters - 2 && i < Q3RGBGEN_MAXPARMS;i++)
1708                                                                 layer->rgbgen.parms[i] = atof(parameter[i+2]);
1709                                                              if (!strcasecmp(parameter[1], "identity"))         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1710                                                         else if (!strcasecmp(parameter[1], "const"))            layer->rgbgen.rgbgen = Q3RGBGEN_CONST;
1711                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->rgbgen.rgbgen = Q3RGBGEN_ENTITY;
1712                                                         else if (!strcasecmp(parameter[1], "exactvertex"))      layer->rgbgen.rgbgen = Q3RGBGEN_EXACTVERTEX;
1713                                                         else if (!strcasecmp(parameter[1], "identitylighting")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITYLIGHTING;
1714                                                         else if (!strcasecmp(parameter[1], "lightingdiffuse"))  layer->rgbgen.rgbgen = Q3RGBGEN_LIGHTINGDIFFUSE;
1715                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSENTITY;
1716                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSVERTEX;
1717                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->rgbgen.rgbgen = Q3RGBGEN_VERTEX;
1718                                                         else if (!strcasecmp(parameter[1], "wave"))
1719                                                         {
1720                                                                 layer->rgbgen.rgbgen = Q3RGBGEN_WAVE;
1721                                                                 layer->rgbgen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1722                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1723                                                                         layer->rgbgen.waveparms[i] = atof(parameter[i+3]);
1724                                                         }
1725                                                         else Con_DPrintf("%s parsing warning: unknown rgbgen %s\n", search->filenames[fileindex], parameter[1]);
1726                                                 }
1727                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen"))
1728                                                 {
1729                                                         int i;
1730                                                         for (i = 0;i < numparameters - 2 && i < Q3ALPHAGEN_MAXPARMS;i++)
1731                                                                 layer->alphagen.parms[i] = atof(parameter[i+2]);
1732                                                              if (!strcasecmp(parameter[1], "identity"))         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1733                                                         else if (!strcasecmp(parameter[1], "const"))            layer->alphagen.alphagen = Q3ALPHAGEN_CONST;
1734                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->alphagen.alphagen = Q3ALPHAGEN_ENTITY;
1735                                                         else if (!strcasecmp(parameter[1], "lightingspecular")) layer->alphagen.alphagen = Q3ALPHAGEN_LIGHTINGSPECULAR;
1736                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSENTITY;
1737                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSVERTEX;
1738                                                         else if (!strcasecmp(parameter[1], "portal"))           layer->alphagen.alphagen = Q3ALPHAGEN_PORTAL;
1739                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->alphagen.alphagen = Q3ALPHAGEN_VERTEX;
1740                                                         else if (!strcasecmp(parameter[1], "wave"))
1741                                                         {
1742                                                                 layer->alphagen.alphagen = Q3ALPHAGEN_WAVE;
1743                                                                 layer->alphagen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1744                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1745                                                                         layer->alphagen.waveparms[i] = atof(parameter[i+3]);
1746                                                         }
1747                                                         else Con_DPrintf("%s parsing warning: unknown alphagen %s\n", search->filenames[fileindex], parameter[1]);
1748                                                 }
1749                                                 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "texgen") || !strcasecmp(parameter[0], "tcgen")))
1750                                                 {
1751                                                         int i;
1752                                                         // observed values: tcgen environment
1753                                                         // no other values have been observed in real shaders
1754                                                         for (i = 0;i < numparameters - 2 && i < Q3TCGEN_MAXPARMS;i++)
1755                                                                 layer->tcgen.parms[i] = atof(parameter[i+2]);
1756                                                              if (!strcasecmp(parameter[1], "base"))        layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1757                                                         else if (!strcasecmp(parameter[1], "texture"))     layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1758                                                         else if (!strcasecmp(parameter[1], "environment")) layer->tcgen.tcgen = Q3TCGEN_ENVIRONMENT;
1759                                                         else if (!strcasecmp(parameter[1], "lightmap"))    layer->tcgen.tcgen = Q3TCGEN_LIGHTMAP;
1760                                                         else if (!strcasecmp(parameter[1], "vector"))      layer->tcgen.tcgen = Q3TCGEN_VECTOR;
1761                                                         else Con_DPrintf("%s parsing warning: unknown tcgen mode %s\n", search->filenames[fileindex], parameter[1]);
1762                                                 }
1763                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "tcmod"))
1764                                                 {
1765                                                         int i, tcmodindex;
1766                                                         // observed values:
1767                                                         // tcmod rotate #
1768                                                         // tcmod scale # #
1769                                                         // tcmod scroll # #
1770                                                         // tcmod stretch sin # # # #
1771                                                         // tcmod stretch triangle # # # #
1772                                                         // tcmod transform # # # # # #
1773                                                         // tcmod turb # # # #
1774                                                         // tcmod turb sin # # # #  (this is bogus)
1775                                                         // no other values have been observed in real shaders
1776                                                         for (tcmodindex = 0;tcmodindex < Q3MAXTCMODS;tcmodindex++)
1777                                                                 if (!layer->tcmods[tcmodindex].tcmod)
1778                                                                         break;
1779                                                         if (tcmodindex < Q3MAXTCMODS)
1780                                                         {
1781                                                                 for (i = 0;i < numparameters - 2 && i < Q3TCMOD_MAXPARMS;i++)
1782                                                                         layer->tcmods[tcmodindex].parms[i] = atof(parameter[i+2]);
1783                                                                          if (!strcasecmp(parameter[1], "entitytranslate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ENTITYTRANSLATE;
1784                                                                 else if (!strcasecmp(parameter[1], "rotate"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ROTATE;
1785                                                                 else if (!strcasecmp(parameter[1], "scale"))           layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCALE;
1786                                                                 else if (!strcasecmp(parameter[1], "scroll"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCROLL;
1787                                                                 else if (!strcasecmp(parameter[1], "page"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_PAGE;
1788                                                                 else if (!strcasecmp(parameter[1], "stretch"))
1789                                                                 {
1790                                                                         layer->tcmods[tcmodindex].tcmod = Q3TCMOD_STRETCH;
1791                                                                         layer->tcmods[tcmodindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1792                                                                         for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1793                                                                                 layer->tcmods[tcmodindex].waveparms[i] = atof(parameter[i+3]);
1794                                                                 }
1795                                                                 else if (!strcasecmp(parameter[1], "transform"))       layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TRANSFORM;
1796                                                                 else if (!strcasecmp(parameter[1], "turb"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TURBULENT;
1797                                                                 else Con_DPrintf("%s parsing warning: unknown tcmod mode %s\n", search->filenames[fileindex], parameter[1]);
1798                                                         }
1799                                                         else
1800                                                                 Con_DPrintf("%s parsing warning: too many tcmods on one layer\n", search->filenames[fileindex]);
1801                                                 }
1802                                                 // break out a level if it was a closing brace (not using the character here to not confuse vim)
1803                                                 if (!strcasecmp(com_token, "}"))
1804                                                         break;
1805                                         }
1806                                         if (layer->rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE || layer->rgbgen.rgbgen == Q3RGBGEN_VERTEX)
1807                                                 shader.lighting = true;
1808                                         if (layer->alphagen.alphagen == Q3ALPHAGEN_VERTEX)
1809                                         {
1810                                                 if (layer == shader.layers + 0)
1811                                                 {
1812                                                         // vertex controlled transparency
1813                                                         shader.vertexalpha = true;
1814                                                 }
1815                                                 else
1816                                                 {
1817                                                         // multilayer terrain shader or similar
1818                                                         shader.textureblendalpha = true;
1819                                                         if (mod_q3shader_force_terrain_alphaflag.integer)
1820                                                                 shader.layers[0].dptexflags |= TEXF_ALPHA;
1821                                                 }
1822                                         }
1823
1824                                         if(mod_q3shader_force_addalpha.integer)
1825                                         {
1826                                                 // for a long while, DP treated GL_ONE GL_ONE as GL_SRC_ALPHA GL_ONE
1827                                                 // this cvar brings back this behaviour
1828                                                 if(layer->blendfunc[0] == GL_ONE && layer->blendfunc[1] == GL_ONE)
1829                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1830                                         }
1831
1832                                         layer->dptexflags = 0;
1833                                         if (layer->alphatest)
1834                                                 layer->dptexflags |= TEXF_ALPHA;
1835                                         switch(layer->blendfunc[0])
1836                                         {
1837                                                 case GL_SRC_ALPHA:
1838                                                 case GL_ONE_MINUS_SRC_ALPHA:
1839                                                         layer->dptexflags |= TEXF_ALPHA;
1840                                                         break;
1841                                         }
1842                                         switch(layer->blendfunc[1])
1843                                         {
1844                                                 case GL_SRC_ALPHA:
1845                                                 case GL_ONE_MINUS_SRC_ALPHA:
1846                                                         layer->dptexflags |= TEXF_ALPHA;
1847                                                         break;
1848                                         }
1849                                         if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
1850                                                 layer->dptexflags |= TEXF_MIPMAP;
1851                                         if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
1852                                                 layer->dptexflags |= TEXF_PICMIP | TEXF_COMPRESS;
1853                                         if (layer->clampmap)
1854                                                 layer->dptexflags |= TEXF_CLAMP;
1855                                         continue;
1856                                 }
1857                                 numparameters = 0;
1858                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1859                                 {
1860                                         if (j < TEXTURE_MAXFRAMES + 4)
1861                                         {
1862                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1863                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1864                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1865                                                 else
1866                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1867                                                 numparameters = j + 1;
1868                                         }
1869                                         if (!COM_ParseToken_QuakeC(&text, true))
1870                                                 break;
1871                                 }
1872                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1873                                 //      parameter[j][0] = 0;
1874                                 if (fileindex == 0 && !strcasecmp(com_token, "}"))
1875                                         break;
1876                                 if (developer_insane.integer)
1877                                 {
1878                                         Con_DPrintf("%s: ", shader.name);
1879                                         for (j = 0;j < numparameters;j++)
1880                                                 Con_DPrintf(" %s", parameter[j]);
1881                                         Con_DPrint("\n");
1882                                 }
1883                                 if (numparameters < 1)
1884                                         continue;
1885                                 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
1886                                 {
1887                                         if (!strcasecmp(parameter[1], "alphashadow"))
1888                                                 shader.surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
1889                                         else if (!strcasecmp(parameter[1], "areaportal"))
1890                                                 shader.surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
1891                                         else if (!strcasecmp(parameter[1], "botclip"))
1892                                                 shader.surfaceparms |= Q3SURFACEPARM_BOTCLIP;
1893                                         else if (!strcasecmp(parameter[1], "clusterportal"))
1894                                                 shader.surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
1895                                         else if (!strcasecmp(parameter[1], "detail"))
1896                                                 shader.surfaceparms |= Q3SURFACEPARM_DETAIL;
1897                                         else if (!strcasecmp(parameter[1], "donotenter"))
1898                                                 shader.surfaceparms |= Q3SURFACEPARM_DONOTENTER;
1899                                         else if (!strcasecmp(parameter[1], "dust"))
1900                                                 shader.surfaceparms |= Q3SURFACEPARM_DUST;
1901                                         else if (!strcasecmp(parameter[1], "hint"))
1902                                                 shader.surfaceparms |= Q3SURFACEPARM_HINT;
1903                                         else if (!strcasecmp(parameter[1], "fog"))
1904                                                 shader.surfaceparms |= Q3SURFACEPARM_FOG;
1905                                         else if (!strcasecmp(parameter[1], "lava"))
1906                                                 shader.surfaceparms |= Q3SURFACEPARM_LAVA;
1907                                         else if (!strcasecmp(parameter[1], "lightfilter"))
1908                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
1909                                         else if (!strcasecmp(parameter[1], "lightgrid"))
1910                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
1911                                         else if (!strcasecmp(parameter[1], "metalsteps"))
1912                                                 shader.surfaceparms |= Q3SURFACEPARM_METALSTEPS;
1913                                         else if (!strcasecmp(parameter[1], "nodamage"))
1914                                                 shader.surfaceparms |= Q3SURFACEPARM_NODAMAGE;
1915                                         else if (!strcasecmp(parameter[1], "nodlight"))
1916                                                 shader.surfaceparms |= Q3SURFACEPARM_NODLIGHT;
1917                                         else if (!strcasecmp(parameter[1], "nodraw"))
1918                                                 shader.surfaceparms |= Q3SURFACEPARM_NODRAW;
1919                                         else if (!strcasecmp(parameter[1], "nodrop"))
1920                                                 shader.surfaceparms |= Q3SURFACEPARM_NODROP;
1921                                         else if (!strcasecmp(parameter[1], "noimpact"))
1922                                                 shader.surfaceparms |= Q3SURFACEPARM_NOIMPACT;
1923                                         else if (!strcasecmp(parameter[1], "nolightmap"))
1924                                                 shader.surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
1925                                         else if (!strcasecmp(parameter[1], "nomarks"))
1926                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMARKS;
1927                                         else if (!strcasecmp(parameter[1], "nomipmaps"))
1928                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
1929                                         else if (!strcasecmp(parameter[1], "nonsolid"))
1930                                                 shader.surfaceparms |= Q3SURFACEPARM_NONSOLID;
1931                                         else if (!strcasecmp(parameter[1], "origin"))
1932                                                 shader.surfaceparms |= Q3SURFACEPARM_ORIGIN;
1933                                         else if (!strcasecmp(parameter[1], "playerclip"))
1934                                                 shader.surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
1935                                         else if (!strcasecmp(parameter[1], "sky"))
1936                                                 shader.surfaceparms |= Q3SURFACEPARM_SKY;
1937                                         else if (!strcasecmp(parameter[1], "slick"))
1938                                                 shader.surfaceparms |= Q3SURFACEPARM_SLICK;
1939                                         else if (!strcasecmp(parameter[1], "slime"))
1940                                                 shader.surfaceparms |= Q3SURFACEPARM_SLIME;
1941                                         else if (!strcasecmp(parameter[1], "structural"))
1942                                                 shader.surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
1943                                         else if (!strcasecmp(parameter[1], "trans"))
1944                                                 shader.surfaceparms |= Q3SURFACEPARM_TRANS;
1945                                         else if (!strcasecmp(parameter[1], "water"))
1946                                                 shader.surfaceparms |= Q3SURFACEPARM_WATER;
1947                                         else if (!strcasecmp(parameter[1], "pointlight"))
1948                                                 shader.surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
1949                                         else if (!strcasecmp(parameter[1], "antiportal"))
1950                                                 shader.surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
1951                                         else if (!strcasecmp(parameter[1], "skip"))
1952                                                 ; // shader.surfaceparms |= Q3SURFACEPARM_SKIP; FIXME we don't have enough #defines for this any more, and the engine doesn't need this one anyway
1953                                         else
1954                                         {
1955                                                 // try custom surfaceparms
1956                                                 for (j = 0; j < numcustsurfaceflags; j++)
1957                                                 {
1958                                                         if (!strcasecmp(custsurfaceparmnames[j], parameter[1]))
1959                                                         {
1960                                                                 shader.surfaceflags |= custsurfaceflags[j];
1961                                                                 break;
1962                                                         }
1963                                                 }
1964                                                 // failed all
1965                                                 if (j == numcustsurfaceflags)
1966                                                         Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
1967                                         }
1968                                 }
1969                                 else if (!strcasecmp(parameter[0], "dpshadow"))
1970                                         shader.dpshadow = true;
1971                                 else if (!strcasecmp(parameter[0], "dpnoshadow"))
1972                                         shader.dpnoshadow = true;
1973                                 else if (!strcasecmp(parameter[0], "dpnortlight"))
1974                                         shader.dpnortlight = true;
1975                                 else if (!strcasecmp(parameter[0], "dpreflectcube"))
1976                                         strlcpy(shader.dpreflectcube, parameter[1], sizeof(shader.dpreflectcube));
1977                                 else if (!strcasecmp(parameter[0], "dpmeshcollisions"))
1978                                         shader.dpmeshcollisions = true;
1979                                 // this sets dpshaderkill to true if dpshaderkillifcvarzero was used, and to false if dpnoshaderkillifcvarzero was used
1980                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvarzero")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvarzero")) && numparameters >= 2)
1981                                 {
1982                                         if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) == 0.0f)
1983                                                 shader.dpshaderkill = dpshaderkill;
1984                                 }
1985                                 // this sets dpshaderkill to true if dpshaderkillifcvar was used, and to false if dpnoshaderkillifcvar was used
1986                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvar")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvar")) && numparameters >= 2)
1987                                 {
1988                                         const char *op = NULL;
1989                                         if (numparameters >= 3)
1990                                                 op = parameter[2];
1991                                         if(!op)
1992                                         {
1993                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) != 0.0f)
1994                                                         shader.dpshaderkill = dpshaderkill;
1995                                         }
1996                                         else if (numparameters >= 4 && !strcmp(op, "=="))
1997                                         {
1998                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) == atof(parameter[3]))
1999                                                         shader.dpshaderkill = dpshaderkill;
2000                                         }
2001                                         else if (numparameters >= 4 && !strcmp(op, "!="))
2002                                         {
2003                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) != atof(parameter[3]))
2004                                                         shader.dpshaderkill = dpshaderkill;
2005                                         }
2006                                         else if (numparameters >= 4 && !strcmp(op, ">"))
2007                                         {
2008                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) > atof(parameter[3]))
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
2027                                         {
2028                                                 Con_DPrintf("%s parsing warning: unknown dpshaderkillifcvar op \"%s\", or not enough arguments\n", search->filenames[fileindex], op);
2029                                         }
2030                                 }
2031                                 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
2032                                 {
2033                                         // some q3 skies don't have the sky parm set
2034                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2035                                         strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2036                                 }
2037                                 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
2038                                 {
2039                                         // some q3 skies don't have the sky parm set
2040                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2041                                         if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
2042                                                 strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2043                                 }
2044                                 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
2045                                 {
2046                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
2047                                                 shader.textureflags |= Q3TEXTUREFLAG_TWOSIDED;
2048                                 }
2049                                 else if (!strcasecmp(parameter[0], "nomipmaps"))
2050                                         shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2051                                 else if (!strcasecmp(parameter[0], "nopicmip"))
2052                                         shader.textureflags |= Q3TEXTUREFLAG_NOPICMIP;
2053                                 else if (!strcasecmp(parameter[0], "polygonoffset"))
2054                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2055                                 else if (!strcasecmp(parameter[0], "dppolygonoffset"))
2056                                 {
2057                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2058                                         if(numparameters >= 2)
2059                                         {
2060                                                 shader.biaspolygonfactor = atof(parameter[1]);
2061                                                 if(numparameters >= 3)
2062                                                         shader.biaspolygonoffset = atof(parameter[2]);
2063                                                 else
2064                                                         shader.biaspolygonoffset = 0;
2065                                         }
2066                                 }
2067                                 else if (!strcasecmp(parameter[0], "dptransparentsort") && numparameters >= 2)
2068                                 {
2069                                         shader.textureflags |= Q3TEXTUREFLAG_TRANSPARENTSORT;
2070                                         if (!strcasecmp(parameter[1], "sky"))
2071                                                 shader.transparentsort = TRANSPARENTSORT_SKY;
2072                                         else if (!strcasecmp(parameter[1], "distance"))
2073                                                 shader.transparentsort = TRANSPARENTSORT_DISTANCE;
2074                                         else if (!strcasecmp(parameter[1], "hud"))
2075                                                 shader.transparentsort = TRANSPARENTSORT_HUD;
2076                                         else
2077                                                 Con_DPrintf("%s parsing warning: unknown dptransparentsort category \"%s\", or not enough arguments\n", search->filenames[fileindex], parameter[1]);
2078                                 }
2079                                 else if (!strcasecmp(parameter[0], "dprefract") && numparameters >= 5)
2080                                 {
2081                                         shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
2082                                         shader.refractfactor = atof(parameter[1]);
2083                                         Vector4Set(shader.refractcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), 1);
2084                                 }
2085                                 else if (!strcasecmp(parameter[0], "dpreflect") && numparameters >= 6)
2086                                 {
2087                                         shader.textureflags |= Q3TEXTUREFLAG_REFLECTION;
2088                                         shader.reflectfactor = atof(parameter[1]);
2089                                         Vector4Set(shader.reflectcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), atof(parameter[5]));
2090                                 }
2091                                 else if (!strcasecmp(parameter[0], "dpcamera"))
2092                                 {
2093                                         shader.textureflags |= Q3TEXTUREFLAG_CAMERA;
2094                                 }
2095                                 else if (!strcasecmp(parameter[0], "dpwater") && numparameters >= 12)
2096                                 {
2097                                         shader.textureflags |= Q3TEXTUREFLAG_WATERSHADER;
2098                                         shader.reflectmin = atof(parameter[1]);
2099                                         shader.reflectmax = atof(parameter[2]);
2100                                         shader.refractfactor = atof(parameter[3]);
2101                                         shader.reflectfactor = atof(parameter[4]);
2102                                         Vector4Set(shader.refractcolor4f, atof(parameter[5]), atof(parameter[6]), atof(parameter[7]), 1);
2103                                         Vector4Set(shader.reflectcolor4f, atof(parameter[8]), atof(parameter[9]), atof(parameter[10]), 1);
2104                                         shader.r_water_wateralpha = atof(parameter[11]);
2105                                 }
2106                                 else if (!strcasecmp(parameter[0], "dpwaterscroll") && numparameters >= 3)
2107                                 {
2108                                         shader.r_water_waterscroll[0] = 1/atof(parameter[1]);
2109                                         shader.r_water_waterscroll[1] = 1/atof(parameter[2]);
2110                                 }
2111                                 else if (!strcasecmp(parameter[0], "dpglossintensitymod") && numparameters >= 2)
2112                                 {
2113                                         shader.specularscalemod = atof(parameter[1]);
2114                                 }
2115                                 else if (!strcasecmp(parameter[0], "dpglossexponentmod") && numparameters >= 2)
2116                                 {
2117                                         shader.specularpowermod = atof(parameter[1]);
2118                                 }
2119                                 else if (!strcasecmp(parameter[0], "dprtlightambient") && numparameters >= 2)
2120                                 {
2121                                         shader.rtlightambient = atof(parameter[1]);
2122                                 }
2123                                 else if (!strcasecmp(parameter[0], "dpoffsetmapping") && numparameters >= 2)
2124                                 {
2125                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "off"))
2126                                                 shader.offsetmapping = OFFSETMAPPING_OFF;
2127                                         else if (!strcasecmp(parameter[1], "default") || !strcasecmp(parameter[1], "normal"))
2128                                                 shader.offsetmapping = OFFSETMAPPING_DEFAULT;
2129                                         else if (!strcasecmp(parameter[1], "linear"))
2130                                                 shader.offsetmapping = OFFSETMAPPING_LINEAR;
2131                                         else if (!strcasecmp(parameter[1], "relief"))
2132                                                 shader.offsetmapping = OFFSETMAPPING_RELIEF;
2133                                         if (numparameters >= 3)
2134                                                 shader.offsetscale = atof(parameter[2]);
2135                                         if (numparameters >= 5)
2136                                         {
2137                                                 if(!strcasecmp(parameter[3], "bias"))
2138                                                         shader.offsetbias = atof(parameter[4]);
2139                                                 else if(!strcasecmp(parameter[3], "match"))
2140                                                         shader.offsetbias = 1.0f - atof(parameter[4]);
2141                                                 else if(!strcasecmp(parameter[3], "match8"))
2142                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 255.0f;
2143                                                 else if(!strcasecmp(parameter[3], "match16"))
2144                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 65535.0f;
2145                                         }
2146                                 }
2147                                 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
2148                                 {
2149                                         int i, deformindex;
2150                                         for (deformindex = 0;deformindex < Q3MAXDEFORMS;deformindex++)
2151                                                 if (!shader.deforms[deformindex].deform)
2152                                                         break;
2153                                         if (deformindex < Q3MAXDEFORMS)
2154                                         {
2155                                                 for (i = 0;i < numparameters - 2 && i < Q3DEFORM_MAXPARMS;i++)
2156                                                         shader.deforms[deformindex].parms[i] = atof(parameter[i+2]);
2157                                                      if (!strcasecmp(parameter[1], "projectionshadow")) shader.deforms[deformindex].deform = Q3DEFORM_PROJECTIONSHADOW;
2158                                                 else if (!strcasecmp(parameter[1], "autosprite"      )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE;
2159                                                 else if (!strcasecmp(parameter[1], "autosprite2"     )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE2;
2160                                                 else if (!strcasecmp(parameter[1], "text0"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT0;
2161                                                 else if (!strcasecmp(parameter[1], "text1"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT1;
2162                                                 else if (!strcasecmp(parameter[1], "text2"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT2;
2163                                                 else if (!strcasecmp(parameter[1], "text3"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT3;
2164                                                 else if (!strcasecmp(parameter[1], "text4"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT4;
2165                                                 else if (!strcasecmp(parameter[1], "text5"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT5;
2166                                                 else if (!strcasecmp(parameter[1], "text6"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT6;
2167                                                 else if (!strcasecmp(parameter[1], "text7"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT7;
2168                                                 else if (!strcasecmp(parameter[1], "bulge"           )) shader.deforms[deformindex].deform = Q3DEFORM_BULGE;
2169                                                 else if (!strcasecmp(parameter[1], "normal"          )) shader.deforms[deformindex].deform = Q3DEFORM_NORMAL;
2170                                                 else if (!strcasecmp(parameter[1], "wave"            ))
2171                                                 {
2172                                                         shader.deforms[deformindex].deform = Q3DEFORM_WAVE;
2173                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[3]);
2174                                                         for (i = 0;i < numparameters - 4 && i < Q3WAVEPARMS;i++)
2175                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+4]);
2176                                                 }
2177                                                 else if (!strcasecmp(parameter[1], "move"            ))
2178                                                 {
2179                                                         shader.deforms[deformindex].deform = Q3DEFORM_MOVE;
2180                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[5]);
2181                                                         for (i = 0;i < numparameters - 6 && i < Q3WAVEPARMS;i++)
2182                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+6]);
2183                                                 }
2184                                         }
2185                                 }
2186                         }
2187                         // hide this shader if a cvar said it should be killed
2188                         if (shader.dpshaderkill)
2189                                 shader.numlayers = 0;
2190                         // fix up multiple reflection types
2191                         if(shader.textureflags & Q3TEXTUREFLAG_WATERSHADER)
2192                                 shader.textureflags &= ~(Q3TEXTUREFLAG_REFRACTION | Q3TEXTUREFLAG_REFLECTION | Q3TEXTUREFLAG_CAMERA);
2193
2194                         Q3Shader_AddToHash (&shader);
2195                 }
2196                 Mem_Free(f);
2197         }
2198         FS_FreeSearch(search);
2199         // free custinfoparm values
2200         for (j = 0; j < numcustsurfaceflags; j++)
2201                 Mem_Free(custsurfaceparmnames[j]);
2202 }
2203
2204 shader_t *Mod_LookupQ3Shader(const char *name)
2205 {
2206         unsigned short hash;
2207         q3shader_hash_entry_t* entry;
2208         if (!q3shaders_mem)
2209                 Mod_LoadQ3Shaders();
2210         hash = CRC_Block_CaseInsensitive ((const unsigned char *)name, strlen (name));
2211         entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
2212         while (entry != NULL)
2213         {
2214                 if (strcasecmp (entry->shader.name, name) == 0)
2215                         return &entry->shader;
2216                 entry = entry->chain;
2217         }
2218         return NULL;
2219 }
2220
2221 texture_shaderpass_t *Mod_CreateShaderPass(mempool_t *mempool, skinframe_t *skinframe)
2222 {
2223         texture_shaderpass_t *shaderpass = (texture_shaderpass_t *)Mem_Alloc(mempool, sizeof(*shaderpass));
2224         shaderpass->framerate = 0.0f;
2225         shaderpass->numframes = 1;
2226         shaderpass->blendfunc[0] = GL_ONE;
2227         shaderpass->blendfunc[1] = GL_ZERO;
2228         shaderpass->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
2229         shaderpass->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
2230         shaderpass->alphatest = false;
2231         shaderpass->tcgen.tcgen = Q3TCGEN_TEXTURE;
2232         shaderpass->skinframes[0] = skinframe;
2233         return shaderpass;
2234 }
2235
2236 texture_shaderpass_t *Mod_CreateShaderPassFromQ3ShaderLayer(mempool_t *mempool, const char *modelname, q3shaderinfo_layer_t *layer, int layerindex, int texflags, const char *texturename)
2237 {
2238         int j;
2239         texture_shaderpass_t *shaderpass = (texture_shaderpass_t *)Mem_Alloc(mempool, sizeof(*shaderpass));
2240         shaderpass->alphatest = layer->alphatest != 0;
2241         shaderpass->framerate = layer->framerate;
2242         shaderpass->numframes = layer->numframes;
2243         shaderpass->blendfunc[0] = layer->blendfunc[0];
2244         shaderpass->blendfunc[1] = layer->blendfunc[1];
2245         shaderpass->rgbgen = layer->rgbgen;
2246         shaderpass->alphagen = layer->alphagen;
2247         shaderpass->tcgen = layer->tcgen;
2248         for (j = 0; j < Q3MAXTCMODS && layer->tcmods[j].tcmod != Q3TCMOD_NONE; j++)
2249                 shaderpass->tcmods[j] = layer->tcmods[j];
2250         for (j = 0; j < layer->numframes; j++)
2251         {
2252                 for (int i = 0; layer->texturename[j][i]; i++)
2253                         if(layer->texturename[j][i] == '\\')
2254                                 layer->texturename[j][i] = '/';
2255                 shaderpass->skinframes[j] = R_SkinFrame_LoadExternal(layer->texturename[j], texflags, false, true);
2256         }
2257         return shaderpass;
2258 }
2259
2260 qbool Mod_LoadTextureFromQ3Shader(mempool_t *mempool, const char *modelname, texture_t *texture, const char *name, qbool warnmissing, qbool fallback, int defaulttexflags, int defaultmaterialflags)
2261 {
2262         int texflagsmask, texflagsor;
2263         qbool success = true;
2264         shader_t *shader;
2265         if (!name)
2266                 name = "";
2267         strlcpy(texture->name, name, sizeof(texture->name));
2268         texture->basealpha = 1.0f;
2269         shader = name[0] ? Mod_LookupQ3Shader(name) : NULL;
2270
2271         // allow disabling of picmip or compression by defaulttexflags
2272         texflagsmask = ~0;
2273         if(!(defaulttexflags & TEXF_PICMIP))
2274                 texflagsmask &= ~TEXF_PICMIP;
2275         if(!(defaulttexflags & TEXF_COMPRESS))
2276                 texflagsmask &= ~TEXF_COMPRESS;
2277         texflagsor = 0;
2278         if(defaulttexflags & TEXF_ISWORLD)
2279                 texflagsor |= TEXF_ISWORLD;
2280         if(defaulttexflags & TEXF_ISSPRITE)
2281                 texflagsor |= TEXF_ISSPRITE;
2282         // unless later loaded from the shader
2283         texture->offsetmapping = (mod_noshader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
2284         texture->offsetscale = 1;
2285         texture->offsetbias = 0;
2286         texture->specularscalemod = 1;
2287         texture->specularpowermod = 1;
2288         texture->rtlightambient = 0;
2289         texture->transparentsort = TRANSPARENTSORT_DISTANCE;
2290         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
2291         // JUST GREP FOR "specularscalemod = 1".
2292
2293         if (shader)
2294         {
2295                 if (developer_loading.integer)
2296                         Con_Printf("%s: loaded shader for %s\n", modelname, name);
2297
2298                 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
2299                 {
2300                         texture->basematerialflags = MATERIALFLAG_SKY;
2301                         if (shader->skyboxname[0] && loadmodel)
2302                         {
2303                                 // quake3 seems to append a _ to the skybox name, so this must do so as well
2304                                 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
2305                         }
2306                 }
2307                 else if ((texture->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
2308                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2309                 else
2310                         texture->basematerialflags = MATERIALFLAG_WALL;
2311
2312                 if (shader->layers[0].alphatest)
2313                         texture->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
2314                 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
2315                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
2316                 if (shader->textureflags & Q3TEXTUREFLAG_POLYGONOFFSET)
2317                 {
2318                         texture->biaspolygonoffset += shader->biaspolygonoffset;
2319                         texture->biaspolygonfactor += shader->biaspolygonfactor;
2320                 }
2321                 if (shader->textureflags & Q3TEXTUREFLAG_REFRACTION)
2322                         texture->basematerialflags |= MATERIALFLAG_REFRACTION;
2323                 if (shader->textureflags & Q3TEXTUREFLAG_REFLECTION)
2324                         texture->basematerialflags |= MATERIALFLAG_REFLECTION;
2325                 if (shader->textureflags & Q3TEXTUREFLAG_WATERSHADER)
2326                         texture->basematerialflags |= MATERIALFLAG_WATERSHADER;
2327                 if (shader->textureflags & Q3TEXTUREFLAG_CAMERA)
2328                         texture->basematerialflags |= MATERIALFLAG_CAMERA;
2329                 texture->customblendfunc[0] = GL_ONE;
2330                 texture->customblendfunc[1] = GL_ZERO;
2331                 texture->transparentsort = shader->transparentsort;
2332                 if (shader->numlayers > 0)
2333                 {
2334                         texture->customblendfunc[0] = shader->layers[0].blendfunc[0];
2335                         texture->customblendfunc[1] = shader->layers[0].blendfunc[1];
2336 /*
2337 Q3 shader blendfuncs actually used in the game (* = supported by DP)
2338 * additive               GL_ONE GL_ONE
2339 additive weird         GL_ONE GL_SRC_ALPHA
2340 additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
2341 * alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
2342 alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
2343 brighten               GL_DST_COLOR GL_ONE
2344 brighten               GL_ONE GL_SRC_COLOR
2345 brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
2346 brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
2347 * modulate               GL_DST_COLOR GL_ZERO
2348 * modulate               GL_ZERO GL_SRC_COLOR
2349 modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
2350 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
2351 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
2352 * modulate x2            GL_DST_COLOR GL_SRC_COLOR
2353 * no blend               GL_ONE GL_ZERO
2354 nothing                GL_ZERO GL_ONE
2355 */
2356                         // if not opaque, figure out what blendfunc to use
2357                         if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
2358                         {
2359                                 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
2360                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2361                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
2362                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2363                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2364                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2365                                 else
2366                                         texture->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2367                         }
2368                 }
2369                 if (!shader->lighting)
2370                         texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
2371
2372                 // here be dragons: convert quake3 shaders to material
2373                 if (shader->numlayers > 0)
2374                 {
2375                         int i;
2376                         int terrainbackgroundlayer = -1;
2377                         int lightmaplayer = -1;
2378                         int alphagenspecularlayer = -1;
2379                         int rgbgenvertexlayer = -1;
2380                         int rgbgendiffuselayer = -1;
2381                         int materiallayer = -1;
2382                         int endofprelayers = 0;
2383                         int firstpostlayer = 0;
2384                         int shaderpassindex = 0;
2385                         for (i = 0; i < shader->numlayers; i++)
2386                         {
2387                                 if (shader->layers[i].texturename != NULL && !strcasecmp(shader->layers[i].texturename[0], "$lightmap"))
2388                                         lightmaplayer = i;
2389                                 if (shader->layers[i].rgbgen.rgbgen == Q3RGBGEN_VERTEX)
2390                                         rgbgenvertexlayer = i;
2391                                 if (shader->layers[i].rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE)
2392                                         rgbgendiffuselayer = i;
2393                                 if (shader->layers[i].alphagen.alphagen == Q3ALPHAGEN_LIGHTINGSPECULAR)
2394                                         alphagenspecularlayer = i;
2395                         }
2396                         if (shader->numlayers >= 2
2397                          && shader->layers[1].alphagen.alphagen == Q3ALPHAGEN_VERTEX
2398                          && (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ZERO && !shader->layers[0].alphatest)
2399                          && ((shader->layers[1].blendfunc[0] == GL_SRC_ALPHA && shader->layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2400                                  || (shader->layers[1].blendfunc[0] == GL_ONE && shader->layers[1].blendfunc[1] == GL_ZERO && shader->layers[1].alphatest)))
2401                         {
2402                                 // terrain blend or certain other effects involving alphatest over a regular layer
2403                                 terrainbackgroundlayer = 0;
2404                                 materiallayer = 1;
2405                                 // terrain may be vertex lit (in which case both layers are rgbGen vertex) or lightmapped (in which ase the third layer is lightmap)
2406                                 firstpostlayer = lightmaplayer >= 0 ? lightmaplayer + 1 : materiallayer + 1;
2407                         }
2408                         else if (lightmaplayer == 0)
2409                         {
2410                                 // ordinary texture but with $lightmap before diffuse
2411                                 materiallayer = 1;
2412                                 firstpostlayer = lightmaplayer + 2;
2413                         }
2414                         else if (lightmaplayer >= 1)
2415                         {
2416                                 // ordinary texture - we don't properly apply lighting to the prelayers, but oh well...
2417                                 endofprelayers = lightmaplayer - 1;
2418                                 materiallayer = lightmaplayer - 1;
2419                                 firstpostlayer = lightmaplayer + 1;
2420                         }
2421                         else if (rgbgenvertexlayer >= 0)
2422                         {
2423                                 // map models with baked lighting
2424                                 materiallayer = rgbgenvertexlayer;
2425                                 endofprelayers = rgbgenvertexlayer;
2426                                 firstpostlayer = rgbgenvertexlayer + 1;
2427                                 // special case for rgbgen vertex if MATERIALFLAG_VERTEXCOLOR is expected on this material
2428                                 if (defaultmaterialflags & MATERIALFLAG_VERTEXCOLOR)
2429                                         texture->basematerialflags |= MATERIALFLAG_VERTEXCOLOR | MATERIALFLAG_ALPHAGEN_VERTEX;
2430                         }
2431                         else if (rgbgendiffuselayer >= 0)
2432                         {
2433                                 // entity models with dynamic lighting
2434                                 materiallayer = rgbgendiffuselayer;
2435                                 endofprelayers = rgbgendiffuselayer;
2436                                 firstpostlayer = rgbgendiffuselayer + 1;
2437                                 // 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)...
2438                                 if (alphagenspecularlayer >= 0)
2439                                         firstpostlayer = alphagenspecularlayer + 1;
2440                         }
2441                         else
2442                         {
2443                                 // special effects shaders - treat first as primary layer and do everything else as post
2444                                 endofprelayers = 0;
2445                                 materiallayer = 0;
2446                                 firstpostlayer = 1;
2447                         }
2448                         // convert the main material layer
2449                         // 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
2450                         if (materiallayer >= 0)
2451                                 texture->materialshaderpass = texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[materiallayer], materiallayer, (shader->layers[materiallayer].dptexflags & texflagsmask) | texflagsor, texture->name);
2452                         // convert the terrain background blend layer (if any)
2453                         if (terrainbackgroundlayer >= 0)
2454                                 texture->backgroundshaderpass = texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[terrainbackgroundlayer], terrainbackgroundlayer, (shader->layers[terrainbackgroundlayer].dptexflags & texflagsmask) | texflagsor, texture->name);
2455                         // convert the prepass layers (if any)
2456                         texture->startpreshaderpass = shaderpassindex;
2457                         for (i = 0; i < endofprelayers; i++)
2458                                 texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[i], i, (shader->layers[i].dptexflags & texflagsmask) | texflagsor, texture->name);
2459                         texture->endpreshaderpass = shaderpassindex;
2460                         texture->startpostshaderpass = shaderpassindex;
2461                         // convert the postpass layers (if any)
2462                         for (i = firstpostlayer; i < shader->numlayers; i++)
2463                                 texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[i], i, (shader->layers[i].dptexflags & texflagsmask) | texflagsor, texture->name);
2464                         texture->startpostshaderpass = shaderpassindex;
2465                 }
2466
2467                 if (shader->dpshadow)
2468                         texture->basematerialflags &= ~MATERIALFLAG_NOSHADOW;
2469                 if (shader->dpnoshadow)
2470                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW;
2471                 if (shader->dpnortlight)
2472                         texture->basematerialflags |= MATERIALFLAG_NORTLIGHT;
2473                 if (shader->vertexalpha)
2474                         texture->basematerialflags |= MATERIALFLAG_ALPHAGEN_VERTEX;
2475                 memcpy(texture->deforms, shader->deforms, sizeof(texture->deforms));
2476                 texture->reflectmin = shader->reflectmin;
2477                 texture->reflectmax = shader->reflectmax;
2478                 texture->refractfactor = shader->refractfactor;
2479                 Vector4Copy(shader->refractcolor4f, texture->refractcolor4f);
2480                 texture->reflectfactor = shader->reflectfactor;
2481                 Vector4Copy(shader->reflectcolor4f, texture->reflectcolor4f);
2482                 texture->r_water_wateralpha = shader->r_water_wateralpha;
2483                 Vector2Copy(shader->r_water_waterscroll, texture->r_water_waterscroll);
2484                 texture->offsetmapping = shader->offsetmapping;
2485                 texture->offsetscale = shader->offsetscale;
2486                 texture->offsetbias = shader->offsetbias;
2487                 texture->specularscalemod = shader->specularscalemod;
2488                 texture->specularpowermod = shader->specularpowermod;
2489                 texture->rtlightambient = shader->rtlightambient;
2490                 texture->refractive_index = mod_q3shader_default_refractive_index.value;
2491                 if (shader->dpreflectcube[0])
2492                         texture->reflectcubetexture = R_GetCubemap(shader->dpreflectcube);
2493
2494                 // set up default supercontents (on q3bsp this is overridden by the q3bsp loader)
2495                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2496                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents  = SUPERCONTENTS_LAVA         ;
2497                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents  = SUPERCONTENTS_SLIME        ;
2498                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents  = SUPERCONTENTS_WATER        ;
2499                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents  = 0                          ;
2500                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents  = SUPERCONTENTS_PLAYERCLIP   ;
2501                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents  = SUPERCONTENTS_MONSTERCLIP  ;
2502                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents  = SUPERCONTENTS_SKY          ;
2503
2504         //      if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->supercontents |= SUPERCONTENTS_ALPHASHADOW  ;
2505         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->supercontents |= SUPERCONTENTS_AREAPORTAL   ;
2506         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->supercontents |= SUPERCONTENTS_CLUSTERPORTAL;
2507         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->supercontents |= SUPERCONTENTS_DETAIL       ;
2508                 if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->supercontents |= SUPERCONTENTS_DONOTENTER   ;
2509         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->supercontents |= SUPERCONTENTS_FOG          ;
2510                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents |= SUPERCONTENTS_LAVA         ;
2511         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->supercontents |= SUPERCONTENTS_LIGHTFILTER  ;
2512         //      if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->supercontents |= SUPERCONTENTS_METALSTEPS   ;
2513         //      if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->supercontents |= SUPERCONTENTS_NODAMAGE     ;
2514         //      if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->supercontents |= SUPERCONTENTS_NODLIGHT     ;
2515         //      if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->supercontents |= SUPERCONTENTS_NODRAW       ;
2516                 if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->supercontents |= SUPERCONTENTS_NODROP       ;
2517         //      if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->supercontents |= SUPERCONTENTS_NOIMPACT     ;
2518         //      if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->supercontents |= SUPERCONTENTS_NOLIGHTMAP   ;
2519         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->supercontents |= SUPERCONTENTS_NOMARKS      ;
2520         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->supercontents |= SUPERCONTENTS_NOMIPMAPS    ;
2521                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents &=~SUPERCONTENTS_SOLID        ;
2522         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->supercontents |= SUPERCONTENTS_ORIGIN       ;
2523                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents |= SUPERCONTENTS_PLAYERCLIP   ;
2524                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents |= SUPERCONTENTS_SKY          ;
2525         //      if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->supercontents |= SUPERCONTENTS_SLICK        ;
2526                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents |= SUPERCONTENTS_SLIME        ;
2527         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->supercontents |= SUPERCONTENTS_STRUCTURAL   ;
2528         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->supercontents |= SUPERCONTENTS_TRANS        ;
2529                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents |= SUPERCONTENTS_WATER        ;
2530         //      if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->supercontents |= SUPERCONTENTS_POINTLIGHT   ;
2531         //      if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->supercontents |= SUPERCONTENTS_HINT         ;
2532         //      if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->supercontents |= SUPERCONTENTS_DUST         ;
2533                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents |= SUPERCONTENTS_BOTCLIP      | SUPERCONTENTS_MONSTERCLIP;
2534         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->supercontents |= SUPERCONTENTS_LIGHTGRID    ;
2535         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->supercontents |= SUPERCONTENTS_ANTIPORTAL   ;
2536
2537                 texture->surfaceflags = shader->surfaceflags;
2538                 if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->surfaceflags |= Q3SURFACEFLAG_ALPHASHADOW  ;
2539         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_AREAPORTAL   ;
2540         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->surfaceflags |= Q3SURFACEFLAG_CLUSTERPORTAL;
2541         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->surfaceflags |= Q3SURFACEFLAG_DETAIL       ;
2542         //      if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->surfaceflags |= Q3SURFACEFLAG_DONOTENTER   ;
2543         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->surfaceflags |= Q3SURFACEFLAG_FOG          ;
2544         //      if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->surfaceflags |= Q3SURFACEFLAG_LAVA         ;
2545                 if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTFILTER  ;
2546                 if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->surfaceflags |= Q3SURFACEFLAG_METALSTEPS   ;
2547                 if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->surfaceflags |= Q3SURFACEFLAG_NODAMAGE     ;
2548                 if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->surfaceflags |= Q3SURFACEFLAG_NODLIGHT     ;
2549                 if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->surfaceflags |= Q3SURFACEFLAG_NODRAW       ;
2550         //      if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->surfaceflags |= Q3SURFACEFLAG_NODROP       ;
2551                 if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->surfaceflags |= Q3SURFACEFLAG_NOIMPACT     ;
2552                 if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->surfaceflags |= Q3SURFACEFLAG_NOLIGHTMAP   ;
2553                 if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->surfaceflags |= Q3SURFACEFLAG_NOMARKS      ;
2554         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->surfaceflags |= Q3SURFACEFLAG_NOMIPMAPS    ;
2555                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->surfaceflags |= Q3SURFACEFLAG_NONSOLID     ;
2556         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->surfaceflags |= Q3SURFACEFLAG_ORIGIN       ;
2557         //      if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->surfaceflags |= Q3SURFACEFLAG_PLAYERCLIP   ;
2558                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->surfaceflags |= Q3SURFACEFLAG_SKY          ;
2559                 if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->surfaceflags |= Q3SURFACEFLAG_SLICK        ;
2560         //      if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->surfaceflags |= Q3SURFACEFLAG_SLIME        ;
2561         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->surfaceflags |= Q3SURFACEFLAG_STRUCTURAL   ;
2562         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->surfaceflags |= Q3SURFACEFLAG_TRANS        ;
2563         //      if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->surfaceflags |= Q3SURFACEFLAG_WATER        ;
2564                 if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->surfaceflags |= Q3SURFACEFLAG_POINTLIGHT   ;
2565                 if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->surfaceflags |= Q3SURFACEFLAG_HINT         ;
2566                 if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->surfaceflags |= Q3SURFACEFLAG_DUST         ;
2567         //      if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->surfaceflags |= Q3SURFACEFLAG_BOTCLIP      ;
2568         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTGRID    ;
2569         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_ANTIPORTAL   ;
2570
2571                 if (shader->dpmeshcollisions)
2572                         texture->basematerialflags |= MATERIALFLAG_MESHCOLLISIONS;
2573                 if (shader->dpshaderkill && developer_extra.integer)
2574                         Con_DPrintf("^1%s:^7 killing shader ^3\"%s\" because of cvar\n", modelname, name);
2575         }
2576         else if (!strcmp(texture->name, "noshader") || !texture->name[0])
2577         {
2578                 if (developer_extra.integer)
2579                         Con_DPrintf("^1%s:^7 using fallback noshader material for ^3\"%s\"\n", modelname, name);
2580                 texture->basematerialflags = defaultmaterialflags;
2581                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2582         }
2583         else if (!strcmp(texture->name, "common/nodraw") || !strcmp(texture->name, "textures/common/nodraw"))
2584         {
2585                 if (developer_extra.integer)
2586                         Con_DPrintf("^1%s:^7 using fallback nodraw material for ^3\"%s\"\n", modelname, name);
2587                 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2588                 texture->supercontents = SUPERCONTENTS_SOLID;
2589         }
2590         else
2591         {
2592                 if (developer_extra.integer)
2593                         Con_DPrintf("^1%s:^7 No shader found for texture ^3\"%s\"\n", modelname, texture->name);
2594                 if (texture->surfaceflags & Q3SURFACEFLAG_NODRAW)
2595                 {
2596                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2597                         texture->supercontents = SUPERCONTENTS_SOLID;
2598                 }
2599                 else if (texture->surfaceflags & Q3SURFACEFLAG_SKY)
2600                 {
2601                         texture->basematerialflags = MATERIALFLAG_SKY;
2602                         texture->supercontents = SUPERCONTENTS_SKY;
2603                 }
2604                 else
2605                 {
2606                         texture->basematerialflags = defaultmaterialflags;
2607                         texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2608                 }
2609                 if(cls.state == ca_dedicated)
2610                 {
2611                         texture->materialshaderpass = NULL;
2612                         success = false;
2613                 }
2614                 else
2615                 {
2616                         skinframe_t *skinframe = R_SkinFrame_LoadExternal(texture->name, defaulttexflags, false, fallback);
2617                         if (skinframe)
2618                         {
2619                                 texture->materialshaderpass = texture->shaderpasses[0] = Mod_CreateShaderPass(mempool, skinframe);
2620                                 if (texture->materialshaderpass->skinframes[0]->hasalpha)
2621                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2622                                 if (texture->q2contents)
2623                                         texture->supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(texture->q2contents);
2624                         }
2625                         else
2626                                 success = false;
2627                         if (!success && warnmissing)
2628                                 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"\n", modelname, texture->name);
2629                 }
2630         }
2631         // init the animation variables
2632         texture->currentframe = texture;
2633         texture->currentmaterialflags = texture->basematerialflags;
2634         if (!texture->materialshaderpass)
2635                 texture->materialshaderpass = texture->shaderpasses[0] = Mod_CreateShaderPass(mempool, R_SkinFrame_LoadMissing());
2636         if (!texture->materialshaderpass->skinframes[0])
2637                 texture->materialshaderpass->skinframes[0] = R_SkinFrame_LoadMissing();
2638         texture->currentskinframe = texture->materialshaderpass ? texture->materialshaderpass->skinframes[0] : NULL;
2639         texture->backgroundcurrentskinframe = texture->backgroundshaderpass ? texture->backgroundshaderpass->skinframes[0] : NULL;
2640         return success;
2641 }
2642
2643 void Mod_LoadCustomMaterial(mempool_t *mempool, texture_t *texture, const char *name, int supercontents, int materialflags, skinframe_t *skinframe)
2644 {
2645         if (!(materialflags & (MATERIALFLAG_WALL | MATERIALFLAG_SKY)))
2646                 Con_DPrintf("^1Custom texture ^3\"%s\" does not have MATERIALFLAG_WALL set\n", texture->name);
2647
2648         strlcpy(texture->name, name, sizeof(texture->name));
2649         texture->basealpha = 1.0f;
2650         texture->basematerialflags = materialflags;
2651         texture->supercontents = supercontents;
2652
2653         texture->offsetmapping = (mod_noshader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
2654         texture->offsetscale = 1;
2655         texture->offsetbias = 0;
2656         texture->specularscalemod = 1;
2657         texture->specularpowermod = 1;
2658         texture->rtlightambient = 0;
2659         texture->transparentsort = TRANSPARENTSORT_DISTANCE;
2660         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
2661         // JUST GREP FOR "specularscalemod = 1".
2662
2663         if (developer_extra.integer)
2664                 Con_DPrintf("^1Custom texture ^3\"%s\"\n", texture->name);
2665         if (skinframe)
2666                 texture->materialshaderpass = texture->shaderpasses[0] = Mod_CreateShaderPass(mempool, skinframe);
2667
2668         // init the animation variables
2669         texture->currentmaterialflags = texture->basematerialflags;
2670         texture->currentframe = texture;
2671         texture->currentskinframe = skinframe;
2672         texture->backgroundcurrentskinframe = NULL;
2673 }
2674
2675 void Mod_UnloadCustomMaterial(texture_t *texture, qbool purgeskins)
2676 {
2677         long unsigned int i, j;
2678         for (i = 0; i < sizeof(texture->shaderpasses) / sizeof(texture->shaderpasses[0]); i++)
2679         {
2680                 if (texture->shaderpasses[i])
2681                 {
2682                         if (purgeskins)
2683                                 for (j = 0; j < sizeof(texture->shaderpasses[i]->skinframes) / sizeof(skinframe_t *);j++)
2684                                         if (texture->shaderpasses[i]->skinframes[j] && texture->shaderpasses[i]->skinframes[j]->base)
2685                                                 R_SkinFrame_PurgeSkinFrame(texture->shaderpasses[i]->skinframes[j]);
2686                         Mem_Free(texture->shaderpasses[i]);
2687                         texture->shaderpasses[i] = NULL;
2688                 }
2689         }
2690         texture->materialshaderpass = NULL;
2691         texture->currentskinframe = NULL;
2692         texture->backgroundcurrentskinframe = NULL;
2693 }
2694
2695 skinfile_t *Mod_LoadSkinFiles(void)
2696 {
2697         int i, words, line, wordsoverflow;
2698         char *text;
2699         const char *data;
2700         skinfile_t *skinfile = NULL, *first = NULL;
2701         skinfileitem_t *skinfileitem;
2702         char word[10][MAX_QPATH];
2703         char vabuf[1024];
2704
2705 /*
2706 sample file:
2707 U_bodyBox,models/players/Legoman/BikerA2.tga
2708 U_RArm,models/players/Legoman/BikerA1.tga
2709 U_LArm,models/players/Legoman/BikerA1.tga
2710 U_armor,common/nodraw
2711 U_sword,common/nodraw
2712 U_shield,common/nodraw
2713 U_homb,common/nodraw
2714 U_backpack,common/nodraw
2715 U_colcha,common/nodraw
2716 tag_head,
2717 tag_weapon,
2718 tag_torso,
2719 */
2720         memset(word, 0, sizeof(word));
2721         for (i = 0;i < 256 && (data = text = (char *)FS_LoadFile(va(vabuf, sizeof(vabuf), "%s_%i.skin", loadmodel->name, i), tempmempool, true, NULL));i++)
2722         {
2723                 // If it's the first file we parse
2724                 if (skinfile == NULL)
2725                 {
2726                         skinfile = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2727                         first = skinfile;
2728                 }
2729                 else
2730                 {
2731                         skinfile->next = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2732                         skinfile = skinfile->next;
2733                 }
2734                 skinfile->next = NULL;
2735
2736                 for(line = 0;;line++)
2737                 {
2738                         // parse line
2739                         if (!COM_ParseToken_QuakeC(&data, true))
2740                                 break;
2741                         if (!strcmp(com_token, "\n"))
2742                                 continue;
2743                         words = 0;
2744                         wordsoverflow = false;
2745                         do
2746                         {
2747                                 if (words < 10)
2748                                         strlcpy(word[words++], com_token, sizeof (word[0]));
2749                                 else
2750                                         wordsoverflow = true;
2751                         }
2752                         while (COM_ParseToken_QuakeC(&data, true) && strcmp(com_token, "\n"));
2753                         if (wordsoverflow)
2754                         {
2755                                 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);
2756                                 continue;
2757                         }
2758                         // words is always >= 1
2759                         if (!strcmp(word[0], "replace"))
2760                         {
2761                                 if (words == 3)
2762                                 {
2763                                         if (developer_loading.integer)
2764                                                 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
2765                                         skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2766                                         skinfileitem->next = skinfile->items;
2767                                         skinfile->items = skinfileitem;
2768                                         strlcpy (skinfileitem->name, word[1], sizeof (skinfileitem->name));
2769                                         strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2770                                 }
2771                                 else
2772                                         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]);
2773                         }
2774                         else if (words >= 2 && !strncmp(word[0], "tag_", 4))
2775                         {
2776                                 // tag name, like "tag_weapon,"
2777                                 // not used for anything (not even in Quake3)
2778                         }
2779                         else if (words >= 2 && !strcmp(word[1], ","))
2780                         {
2781                                 // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
2782                                 if (developer_loading.integer)
2783                                         Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
2784                                 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2785                                 skinfileitem->next = skinfile->items;
2786                                 skinfile->items = skinfileitem;
2787                                 strlcpy (skinfileitem->name, word[0], sizeof (skinfileitem->name));
2788                                 strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2789                         }
2790                         else
2791                                 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);
2792                 }
2793                 Mem_Free(text);
2794         }
2795         if (i)
2796                 loadmodel->numskins = i;
2797         return first;
2798 }
2799
2800 void Mod_FreeSkinFiles(skinfile_t *skinfile)
2801 {
2802         skinfile_t *next;
2803         skinfileitem_t *skinfileitem, *nextitem;
2804         for (;skinfile;skinfile = next)
2805         {
2806                 next = skinfile->next;
2807                 for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
2808                 {
2809                         nextitem = skinfileitem->next;
2810                         Mem_Free(skinfileitem);
2811                 }
2812                 Mem_Free(skinfile);
2813         }
2814 }
2815
2816 int Mod_CountSkinFiles(skinfile_t *skinfile)
2817 {
2818         int i;
2819         for (i = 0;skinfile;skinfile = skinfile->next, i++);
2820         return i;
2821 }
2822
2823 void Mod_SnapVertices(int numcomponents, int numvertices, float *vertices, float snap)
2824 {
2825         int i;
2826         double isnap = 1.0 / snap;
2827         for (i = 0;i < numvertices*numcomponents;i++)
2828                 vertices[i] = floor(vertices[i]*isnap)*snap;
2829 }
2830
2831 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
2832 {
2833         int i, outtriangles;
2834         float edgedir1[3], edgedir2[3], temp[3];
2835         // a degenerate triangle is one with no width (thickness, surface area)
2836         // these are characterized by having all 3 points colinear (along a line)
2837         // or having two points identical
2838         // the simplest check is to calculate the triangle's area
2839         for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
2840         {
2841                 // calculate first edge
2842                 VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir1);
2843                 VectorSubtract(vertex3f + inelement3i[2] * 3, vertex3f + inelement3i[0] * 3, edgedir2);
2844                 CrossProduct(edgedir1, edgedir2, temp);
2845                 if (VectorLength2(temp) < 0.001f)
2846                         continue; // degenerate triangle (no area)
2847                 // valid triangle (has area)
2848                 VectorCopy(inelement3i, outelement3i);
2849                 outelement3i += 3;
2850                 outtriangles++;
2851         }
2852         return outtriangles;
2853 }
2854
2855 void Mod_VertexRangeFromElements(int numelements, const int *elements, int *firstvertexpointer, int *lastvertexpointer)
2856 {
2857         int i, e;
2858         int firstvertex, lastvertex;
2859         if (numelements > 0 && elements)
2860         {
2861                 firstvertex = lastvertex = elements[0];
2862                 for (i = 1;i < numelements;i++)
2863                 {
2864                         e = elements[i];
2865                         firstvertex = min(firstvertex, e);
2866                         lastvertex = max(lastvertex, e);
2867                 }
2868         }
2869         else
2870                 firstvertex = lastvertex = 0;
2871         if (firstvertexpointer)
2872                 *firstvertexpointer = firstvertex;
2873         if (lastvertexpointer)
2874                 *lastvertexpointer = lastvertex;
2875 }
2876
2877 void Mod_MakeSortedSurfaces(dp_model_t *mod)
2878 {
2879         // make an optimal set of texture-sorted batches to draw...
2880         int j, t;
2881         int *firstsurfacefortexture;
2882         int *numsurfacesfortexture;
2883         if (!mod->sortedmodelsurfaces)
2884                 mod->sortedmodelsurfaces = (int *) Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->sortedmodelsurfaces));
2885         firstsurfacefortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*firstsurfacefortexture));
2886         numsurfacesfortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*numsurfacesfortexture));
2887         memset(numsurfacesfortexture, 0, mod->num_textures * sizeof(*numsurfacesfortexture));
2888         for (j = 0;j < mod->nummodelsurfaces;j++)
2889         {
2890                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2891                 if(!surface->texture)
2892                         continue;
2893                 t = (int)(surface->texture - mod->data_textures);
2894                 numsurfacesfortexture[t]++;
2895         }
2896         j = 0;
2897         for (t = 0;t < mod->num_textures;t++)
2898         {
2899                 firstsurfacefortexture[t] = j;
2900                 j += numsurfacesfortexture[t];
2901         }
2902         for (j = 0;j < mod->nummodelsurfaces;j++)
2903         {
2904                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2905                 if (!surface->texture)
2906                         continue;
2907                 t = (int)(surface->texture - mod->data_textures);
2908                 mod->sortedmodelsurfaces[firstsurfacefortexture[t]++] = j + mod->firstmodelsurface;
2909         }
2910         Mem_Free(firstsurfacefortexture);
2911         Mem_Free(numsurfacesfortexture);
2912 }
2913
2914 void Mod_BuildVBOs(void)
2915 {
2916         if(cls.state == ca_dedicated)
2917                 return;
2918
2919         if (!loadmodel->surfmesh.num_vertices)
2920                 return;
2921
2922         if (gl_paranoid.integer && loadmodel->surfmesh.data_element3s && loadmodel->surfmesh.data_element3i)
2923         {
2924                 int i;
2925                 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2926                 {
2927                         if (loadmodel->surfmesh.data_element3s[i] != loadmodel->surfmesh.data_element3i[i])
2928                         {
2929                                 Con_Printf("Mod_BuildVBOs: element %u is incorrect (%u should be %u)\n", i, loadmodel->surfmesh.data_element3s[i], loadmodel->surfmesh.data_element3i[i]);
2930                                 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2931                         }
2932                 }
2933         }
2934
2935         // upload short indices as a buffer
2936         if (loadmodel->surfmesh.data_element3s && !loadmodel->surfmesh.data_element3s_indexbuffer)
2937                 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);
2938
2939         // upload int indices as a buffer
2940         if (loadmodel->surfmesh.data_element3i && !loadmodel->surfmesh.data_element3i_indexbuffer && !loadmodel->surfmesh.data_element3s)
2941                 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);
2942
2943         // only build a vbo if one has not already been created (this is important for brush models which load specially)
2944         // we put several vertex data streams in the same buffer
2945         if (!loadmodel->surfmesh.data_vertex3f_vertexbuffer)
2946         {
2947                 int size;
2948                 unsigned char *mem;
2949                 size = 0;
2950                 loadmodel->surfmesh.data_vertex3f_bufferoffset           = size;if (loadmodel->surfmesh.data_vertex3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2951                 loadmodel->surfmesh.data_svector3f_bufferoffset          = size;if (loadmodel->surfmesh.data_svector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2952                 loadmodel->surfmesh.data_tvector3f_bufferoffset          = size;if (loadmodel->surfmesh.data_tvector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2953                 loadmodel->surfmesh.data_normal3f_bufferoffset           = size;if (loadmodel->surfmesh.data_normal3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2954                 loadmodel->surfmesh.data_texcoordtexture2f_bufferoffset  = size;if (loadmodel->surfmesh.data_texcoordtexture2f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2955                 loadmodel->surfmesh.data_texcoordlightmap2f_bufferoffset = size;if (loadmodel->surfmesh.data_texcoordlightmap2f) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2956                 loadmodel->surfmesh.data_lightmapcolor4f_bufferoffset    = size;if (loadmodel->surfmesh.data_lightmapcolor4f   ) size += loadmodel->surfmesh.num_vertices * sizeof(float[4]);
2957                 loadmodel->surfmesh.data_skeletalindex4ub_bufferoffset   = size;if (loadmodel->surfmesh.data_skeletalindex4ub  ) size += loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]);
2958                 loadmodel->surfmesh.data_skeletalweight4ub_bufferoffset  = size;if (loadmodel->surfmesh.data_skeletalweight4ub ) size += loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]);
2959                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
2960                 if (loadmodel->surfmesh.data_vertex3f          ) memcpy(mem + loadmodel->surfmesh.data_vertex3f_bufferoffset          , loadmodel->surfmesh.data_vertex3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2961                 if (loadmodel->surfmesh.data_svector3f         ) memcpy(mem + loadmodel->surfmesh.data_svector3f_bufferoffset         , loadmodel->surfmesh.data_svector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2962                 if (loadmodel->surfmesh.data_tvector3f         ) memcpy(mem + loadmodel->surfmesh.data_tvector3f_bufferoffset         , loadmodel->surfmesh.data_tvector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2963                 if (loadmodel->surfmesh.data_normal3f          ) memcpy(mem + loadmodel->surfmesh.data_normal3f_bufferoffset          , loadmodel->surfmesh.data_normal3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2964                 if (loadmodel->surfmesh.data_texcoordtexture2f ) memcpy(mem + loadmodel->surfmesh.data_texcoordtexture2f_bufferoffset , loadmodel->surfmesh.data_texcoordtexture2f , loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2965                 if (loadmodel->surfmesh.data_texcoordlightmap2f) memcpy(mem + loadmodel->surfmesh.data_texcoordlightmap2f_bufferoffset, loadmodel->surfmesh.data_texcoordlightmap2f, loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2966                 if (loadmodel->surfmesh.data_lightmapcolor4f   ) memcpy(mem + loadmodel->surfmesh.data_lightmapcolor4f_bufferoffset   , loadmodel->surfmesh.data_lightmapcolor4f   , loadmodel->surfmesh.num_vertices * sizeof(float[4]));
2967                 if (loadmodel->surfmesh.data_skeletalindex4ub  ) memcpy(mem + loadmodel->surfmesh.data_skeletalindex4ub_bufferoffset  , loadmodel->surfmesh.data_skeletalindex4ub  , loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]));
2968                 if (loadmodel->surfmesh.data_skeletalweight4ub ) memcpy(mem + loadmodel->surfmesh.data_skeletalweight4ub_bufferoffset , loadmodel->surfmesh.data_skeletalweight4ub , loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]));
2969                 loadmodel->surfmesh.data_vertex3f_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, loadmodel->name, false, false, false, false);
2970                 loadmodel->surfmesh.data_svector3f_vertexbuffer = loadmodel->surfmesh.data_svector3f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
2971                 loadmodel->surfmesh.data_tvector3f_vertexbuffer = loadmodel->surfmesh.data_tvector3f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
2972                 loadmodel->surfmesh.data_normal3f_vertexbuffer = loadmodel->surfmesh.data_normal3f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
2973                 loadmodel->surfmesh.data_texcoordtexture2f_vertexbuffer = loadmodel->surfmesh.data_texcoordtexture2f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
2974                 loadmodel->surfmesh.data_texcoordlightmap2f_vertexbuffer = loadmodel->surfmesh.data_texcoordlightmap2f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
2975                 loadmodel->surfmesh.data_lightmapcolor4f_vertexbuffer = loadmodel->surfmesh.data_lightmapcolor4f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
2976                 loadmodel->surfmesh.data_skeletalindex4ub_vertexbuffer = loadmodel->surfmesh.data_skeletalindex4ub ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
2977                 loadmodel->surfmesh.data_skeletalweight4ub_vertexbuffer = loadmodel->surfmesh.data_skeletalweight4ub ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
2978                 Mem_Free(mem);
2979         }
2980 }
2981
2982 extern cvar_t mod_obj_orientation;
2983 static void Mod_Decompile_OBJ(dp_model_t *model, const char *filename, const char *mtlfilename, const char *originalfilename)
2984 {
2985         int submodelindex, vertexindex, surfaceindex, triangleindex, textureindex, countvertices = 0, countsurfaces = 0, countfaces = 0, counttextures = 0;
2986         int a, b, c;
2987         const char *texname;
2988         const int *e;
2989         const float *v, *vn, *vt;
2990         size_t l;
2991         size_t outbufferpos = 0;
2992         size_t outbuffermax = 0x100000;
2993         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
2994         const msurface_t *surface;
2995         const int maxtextures = 256;
2996         char *texturenames = (char *) Z_Malloc(maxtextures * MAX_QPATH);
2997         dp_model_t *submodel;
2998
2999         // construct the mtllib file
3000         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "# mtllib for %s exported by darkplaces engine\n", originalfilename);
3001         if (l > 0)
3002                 outbufferpos += l;
3003         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3004         {
3005                 countsurfaces++;
3006                 countvertices += surface->num_vertices;
3007                 countfaces += surface->num_triangles;
3008                 texname = (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default";
3009                 for (textureindex = 0;textureindex < counttextures;textureindex++)
3010                         if (!strcmp(texturenames + textureindex * MAX_QPATH, texname))
3011                                 break;
3012                 if (textureindex < counttextures)
3013                         continue; // already wrote this material entry
3014                 if (textureindex >= maxtextures)
3015                         continue; // just a precaution
3016                 textureindex = counttextures++;
3017                 strlcpy(texturenames + textureindex * MAX_QPATH, texname, MAX_QPATH);
3018                 if (outbufferpos >= outbuffermax >> 1)
3019                 {
3020                         outbuffermax *= 2;
3021                         oldbuffer = outbuffer;
3022                         outbuffer = (char *) Z_Malloc(outbuffermax);
3023                         memcpy(outbuffer, oldbuffer, outbufferpos);
3024                         Z_Free(oldbuffer);
3025                 }
3026                 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");
3027                 if (l > 0)
3028                         outbufferpos += l;
3029         }
3030
3031         // write the mtllib file
3032         FS_WriteFile(mtlfilename, outbuffer, outbufferpos);
3033
3034         // construct the obj file
3035         outbufferpos = 0;
3036         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);
3037         if (l > 0)
3038                 outbufferpos += l;
3039
3040         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)
3041         {
3042                 if (outbufferpos >= outbuffermax >> 1)
3043                 {
3044                         outbuffermax *= 2;
3045                         oldbuffer = outbuffer;
3046                         outbuffer = (char *) Z_Malloc(outbuffermax);
3047                         memcpy(outbuffer, oldbuffer, outbufferpos);
3048                         Z_Free(oldbuffer);
3049                 }
3050                 if(mod_obj_orientation.integer)
3051                         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]);
3052                 else
3053                         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]);
3054                 if (l > 0)
3055                         outbufferpos += l;
3056         }
3057
3058         for (submodelindex = 0;submodelindex < max(1, model->brush.numsubmodels);submodelindex++)
3059         {
3060                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "o %i\n", submodelindex);
3061                 if (l > 0)
3062                         outbufferpos += l;
3063                 submodel = model->brush.numsubmodels ? model->brush.submodels[submodelindex] : model;
3064                 for (surfaceindex = 0;surfaceindex < submodel->nummodelsurfaces;surfaceindex++)
3065                 {
3066                         surface = model->data_surfaces + submodel->sortedmodelsurfaces[surfaceindex];
3067                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "usemtl %s\n", (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default");
3068                         if (l > 0)
3069                                 outbufferpos += l;
3070                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3071                         {
3072                                 if (outbufferpos >= outbuffermax >> 1)
3073                                 {
3074                                         outbuffermax *= 2;
3075                                         oldbuffer = outbuffer;
3076                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3077                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3078                                         Z_Free(oldbuffer);
3079                                 }
3080                                 a = e[0]+1;
3081                                 b = e[1]+1;
3082                                 c = e[2]+1;
3083                                 if(mod_obj_orientation.integer)
3084                                         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);
3085                                 else
3086                                         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);
3087                                 if (l > 0)
3088                                         outbufferpos += l;
3089                         }
3090                 }
3091         }
3092
3093         // write the obj file
3094         FS_WriteFile(filename, outbuffer, outbufferpos);
3095
3096         // clean up
3097         Z_Free(outbuffer);
3098         Z_Free(texturenames);
3099
3100         // print some stats
3101         Con_Printf("Wrote %s (%i bytes, %i vertices, %i faces, %i surfaces with %i distinct textures)\n", filename, (int)outbufferpos, countvertices, countfaces, countsurfaces, counttextures);
3102 }
3103
3104 static void Mod_Decompile_SMD(dp_model_t *model, const char *filename, int firstpose, int numposes, qbool writetriangles)
3105 {
3106         int countnodes = 0, counttriangles = 0, countframes = 0;
3107         int surfaceindex;
3108         int triangleindex;
3109         int transformindex;
3110         int poseindex;
3111         int cornerindex;
3112         const int *e;
3113         size_t l;
3114         size_t outbufferpos = 0;
3115         size_t outbuffermax = 0x100000;
3116         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3117         const msurface_t *surface;
3118         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "version 1\nnodes\n");
3119         if (l > 0)
3120                 outbufferpos += l;
3121         for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3122         {
3123                 if (outbufferpos >= outbuffermax >> 1)
3124                 {
3125                         outbuffermax *= 2;
3126                         oldbuffer = outbuffer;
3127                         outbuffer = (char *) Z_Malloc(outbuffermax);
3128                         memcpy(outbuffer, oldbuffer, outbufferpos);
3129                         Z_Free(oldbuffer);
3130                 }
3131                 countnodes++;
3132                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i \"%s\" %3i\n", transformindex, model->data_bones[transformindex].name, model->data_bones[transformindex].parent);
3133                 if (l > 0)
3134                         outbufferpos += l;
3135         }
3136         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\nskeleton\n");
3137         if (l > 0)
3138                 outbufferpos += l;
3139         for (poseindex = 0;poseindex < numposes;poseindex++)
3140         {
3141                 countframes++;
3142                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "time %i\n", poseindex);
3143                 if (l > 0)
3144                         outbufferpos += l;
3145                 for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3146                 {
3147                         float angles[3];
3148                         float mtest[4][3];
3149                         matrix4x4_t posematrix;
3150                         if (outbufferpos >= outbuffermax >> 1)
3151                         {
3152                                 outbuffermax *= 2;
3153                                 oldbuffer = outbuffer;
3154                                 outbuffer = (char *) Z_Malloc(outbuffermax);
3155                                 memcpy(outbuffer, oldbuffer, outbufferpos);
3156                                 Z_Free(oldbuffer);
3157                         }
3158
3159                         // strangely the smd angles are for a transposed matrix, so we
3160                         // have to generate a transposed matrix, then convert that...
3161                         Matrix4x4_FromBonePose7s(&posematrix, model->num_posescale, model->data_poses7s + 7*(model->num_bones * poseindex + transformindex));
3162                         Matrix4x4_ToArray12FloatGL(&posematrix, mtest[0]);
3163                         AnglesFromVectors(angles, mtest[0], mtest[2], false);
3164                         if (angles[0] >= 180) angles[0] -= 360;
3165                         if (angles[1] >= 180) angles[1] -= 360;
3166                         if (angles[2] >= 180) angles[2] -= 360;
3167
3168 #if 0
3169 {
3170                         float a = DEG2RAD(angles[ROLL]);
3171                         float b = DEG2RAD(angles[PITCH]);
3172                         float c = DEG2RAD(angles[YAW]);
3173                         float cy, sy, cp, sp, cr, sr;
3174                         float test[4][3];
3175                         // smd matrix construction, for comparing
3176                         sy = sin(c);
3177                         cy = cos(c);
3178                         sp = sin(b);
3179                         cp = cos(b);
3180                         sr = sin(a);
3181                         cr = cos(a);
3182
3183                         test[0][0] = cp*cy;
3184                         test[0][1] = cp*sy;
3185                         test[0][2] = -sp;
3186                         test[1][0] = sr*sp*cy+cr*-sy;
3187                         test[1][1] = sr*sp*sy+cr*cy;
3188                         test[1][2] = sr*cp;
3189                         test[2][0] = (cr*sp*cy+-sr*-sy);
3190                         test[2][1] = (cr*sp*sy+-sr*cy);
3191                         test[2][2] = cr*cp;
3192                         test[3][0] = pose[9];
3193                         test[3][1] = pose[10];
3194                         test[3][2] = pose[11];
3195 }
3196 #endif
3197                         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]));
3198                         if (l > 0)
3199                                 outbufferpos += l;
3200                 }
3201         }
3202         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3203         if (l > 0)
3204                 outbufferpos += l;
3205         if (writetriangles)
3206         {
3207                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "triangles\n");
3208                 if (l > 0)
3209                         outbufferpos += l;
3210                 for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3211                 {
3212                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3213                         {
3214                                 counttriangles++;
3215                                 if (outbufferpos >= outbuffermax >> 1)
3216                                 {
3217                                         outbuffermax *= 2;
3218                                         oldbuffer = outbuffer;
3219                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3220                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3221                                         Z_Free(oldbuffer);
3222                                 }
3223                                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%s\n", surface->texture && surface->texture->name[0] ? surface->texture->name : "default.bmp");
3224                                 if (l > 0)
3225                                         outbufferpos += l;
3226                                 for (cornerindex = 0;cornerindex < 3;cornerindex++)
3227                                 {
3228                                         const int index = e[2-cornerindex];
3229                                         const float *v = model->surfmesh.data_vertex3f + index * 3;
3230                                         const float *vn = model->surfmesh.data_normal3f + index * 3;
3231                                         const float *vt = model->surfmesh.data_texcoordtexture2f + index * 2;
3232                                         const int b = model->surfmesh.blends[index];
3233                                         if (b < model->num_bones)
3234                                                 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]);
3235                                         else
3236                                         {
3237                                                 const blendweights_t *w = model->surfmesh.data_blendweights + b - model->num_bones;
3238                                                 const unsigned char *wi = w->index;
3239                                                 const unsigned char *wf = w->influence;
3240                                             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);
3241                                                 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);
3242                                                 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);
3243                                                 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]);
3244                                         }
3245                                         if (l > 0)
3246                                                 outbufferpos += l;
3247                                 }
3248                         }
3249                 }
3250                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3251                 if (l > 0)
3252                         outbufferpos += l;
3253         }
3254
3255         FS_WriteFile(filename, outbuffer, outbufferpos);
3256         Z_Free(outbuffer);
3257
3258         Con_Printf("Wrote %s (%i bytes, %i nodes, %i frames, %i triangles)\n", filename, (int)outbufferpos, countnodes, countframes, counttriangles);
3259 }
3260
3261 /*
3262 ================
3263 Mod_Decompile_f
3264
3265 decompiles a model to editable files
3266 ================
3267 */
3268 static void Mod_Decompile_f(cmd_state_t *cmd)
3269 {
3270         int i, j, k, l, first, count;
3271         dp_model_t *mod;
3272         char inname[MAX_QPATH];
3273         char outname[MAX_QPATH];
3274         char mtlname[MAX_QPATH];
3275         char basename[MAX_QPATH];
3276         char animname[MAX_QPATH];
3277         char animname2[MAX_QPATH];
3278         char zymtextbuffer[16384];
3279         char dpmtextbuffer[16384];
3280         char framegroupstextbuffer[16384];
3281         int zymtextsize = 0;
3282         int dpmtextsize = 0;
3283         int framegroupstextsize = 0;
3284         char vabuf[1024];
3285
3286         if (Cmd_Argc(cmd) != 2)
3287         {
3288                 Con_Print("usage: modeldecompile <filename>\n");
3289                 return;
3290         }
3291
3292         strlcpy(inname, Cmd_Argv(cmd, 1), sizeof(inname));
3293         FS_StripExtension(inname, basename, sizeof(basename));
3294
3295         mod = Mod_ForName(inname, false, true, inname[0] == '*' ? cl.model_name[1] : NULL);
3296         if (!mod)
3297         {
3298                 Con_Print("No such model\n");
3299                 return;
3300         }
3301         if (mod->brush.submodel)
3302         {
3303                 // if we're decompiling a submodel, be sure to give it a proper name based on its parent
3304                 FS_StripExtension(cl.model_name[1], outname, sizeof(outname));
3305                 dpsnprintf(basename, sizeof(basename), "%s/%s", outname, mod->name);
3306                 outname[0] = 0;
3307         }
3308         if (!mod->surfmesh.num_triangles)
3309         {
3310                 Con_Print("Empty model (or sprite)\n");
3311                 return;
3312         }
3313
3314         // export OBJ if possible (not on sprites)
3315         if (mod->surfmesh.num_triangles)
3316         {
3317                 dpsnprintf(outname, sizeof(outname), "%s_decompiled.obj", basename);
3318                 dpsnprintf(mtlname, sizeof(mtlname), "%s_decompiled.mtl", basename);
3319                 Mod_Decompile_OBJ(mod, outname, mtlname, inname);
3320         }
3321
3322         // export SMD if possible (only for skeletal models)
3323         if (mod->surfmesh.num_triangles && mod->num_bones)
3324         {
3325                 dpsnprintf(outname, sizeof(outname), "%s_decompiled/ref1.smd", basename);
3326                 Mod_Decompile_SMD(mod, outname, 0, 1, true);
3327                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "output out.zym\nscale 1\norigin 0 0 0\nmesh ref1.smd\n");
3328                 if (l > 0) zymtextsize += l;
3329                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "outputdir .\nmodel out\nscale 1\norigin 0 0 0\nscene ref1.smd\n");
3330                 if (l > 0) dpmtextsize += l;
3331                 for (i = 0;i < mod->numframes;i = j)
3332                 {
3333                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3334                         first = mod->animscenes[i].firstframe;
3335                         if (mod->animscenes[i].framecount > 1)
3336                         {
3337                                 // framegroup anim
3338                                 count = mod->animscenes[i].framecount;
3339                                 j = i + 1;
3340                         }
3341                         else
3342                         {
3343                                 // individual frame
3344                                 // check for additional frames with same name
3345                                 for (l = 0, k = (int)strlen(animname);animname[l];l++)
3346                                         if(animname[l] < '0' || animname[l] > '9')
3347                                                 k = l + 1;
3348                                 if(k > 0 && animname[k-1] == '_')
3349                                         --k;
3350                                 animname[k] = 0;
3351                                 count = mod->num_poses - first;
3352                                 for (j = i + 1;j < mod->numframes;j++)
3353                                 {
3354                                         strlcpy(animname2, mod->animscenes[j].name, sizeof(animname2));
3355                                         for (l = 0, k = (int)strlen(animname2);animname2[l];l++)
3356                                                 if(animname2[l] < '0' || animname2[l] > '9')
3357                                                         k = l + 1;
3358                                         if(k > 0 && animname[k-1] == '_')
3359                                                 --k;
3360                                         animname2[k] = 0;
3361                                         if (strcmp(animname2, animname) || mod->animscenes[j].framecount > 1)
3362                                         {
3363                                                 count = mod->animscenes[j].firstframe - first;
3364                                                 break;
3365                                         }
3366                                 }
3367                                 // if it's only one frame, use the original frame name
3368                                 if (j == i + 1)
3369                                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3370
3371                         }
3372                         dpsnprintf(outname, sizeof(outname), "%s_decompiled/%s.smd", basename, animname);
3373                         Mod_Decompile_SMD(mod, outname, first, count, false);
3374                         if (zymtextsize < (int)sizeof(zymtextbuffer) - 100)
3375                         {
3376                                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3377                                 if (l > 0) zymtextsize += l;
3378                         }
3379                         if (dpmtextsize < (int)sizeof(dpmtextbuffer) - 100)
3380                         {
3381                                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3382                                 if (l > 0) dpmtextsize += l;
3383                         }
3384                         if (framegroupstextsize < (int)sizeof(framegroupstextbuffer) - 100)
3385                         {
3386                                 l = dpsnprintf(framegroupstextbuffer + framegroupstextsize, sizeof(framegroupstextbuffer) - framegroupstextsize, "%d %d %f %d // %s\n", first, count, mod->animscenes[i].framerate, mod->animscenes[i].loop, animname);
3387                                 if (l > 0) framegroupstextsize += l;
3388                         }
3389                 }
3390                 if (zymtextsize)
3391                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_zym.txt", basename), zymtextbuffer, (fs_offset_t)zymtextsize);
3392                 if (dpmtextsize)
3393                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_dpm.txt", basename), dpmtextbuffer, (fs_offset_t)dpmtextsize);
3394                 if (framegroupstextsize)
3395                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled.framegroups", basename), framegroupstextbuffer, (fs_offset_t)framegroupstextsize);
3396         }
3397 }
3398
3399 void Mod_AllocLightmap_Init(mod_alloclightmap_state_t *state, mempool_t *mempool, int width, int height)
3400 {
3401         int y;
3402         memset(state, 0, sizeof(*state));
3403         state->width = width;
3404         state->height = height;
3405         state->currentY = 0;
3406         state->rows = (mod_alloclightmap_row_t *)Mem_Alloc(mempool, state->height * sizeof(*state->rows));
3407         for (y = 0;y < state->height;y++)
3408         {
3409                 state->rows[y].currentX = 0;
3410                 state->rows[y].rowY = -1;
3411         }
3412 }
3413
3414 void Mod_AllocLightmap_Reset(mod_alloclightmap_state_t *state)
3415 {
3416         int y;
3417         state->currentY = 0;
3418         for (y = 0;y < state->height;y++)
3419         {
3420                 state->rows[y].currentX = 0;
3421                 state->rows[y].rowY = -1;
3422         }
3423 }
3424
3425 void Mod_AllocLightmap_Free(mod_alloclightmap_state_t *state)
3426 {
3427         if (state->rows)
3428                 Mem_Free(state->rows);
3429         memset(state, 0, sizeof(*state));
3430 }
3431
3432 qbool Mod_AllocLightmap_Block(mod_alloclightmap_state_t *state, int blockwidth, int blockheight, int *outx, int *outy)
3433 {
3434         mod_alloclightmap_row_t *row;
3435         int y;
3436
3437         row = state->rows + blockheight;
3438         if ((row->rowY < 0) || (row->currentX + blockwidth > state->width))
3439         {
3440                 if (state->currentY + blockheight <= state->height)
3441                 {
3442                         // use the current allocation position
3443                         row->rowY = state->currentY;
3444                         row->currentX = 0;
3445                         state->currentY += blockheight;
3446                 }
3447                 else
3448                 {
3449                         // find another position
3450                         for (y = blockheight;y < state->height;y++)
3451                         {
3452                                 if ((state->rows[y].rowY >= 0) && (state->rows[y].currentX + blockwidth <= state->width))
3453                                 {
3454                                         row = state->rows + y;
3455                                         break;
3456                                 }
3457                         }
3458                         if (y == state->height)
3459                                 return false;
3460                 }
3461         }
3462         *outy = row->rowY;
3463         *outx = row->currentX;
3464         row->currentX += blockwidth;
3465
3466         return true;
3467 }
3468
3469 typedef struct lightmapsample_s
3470 {
3471         float pos[3];
3472         float sh1[4][3];
3473         float *vertex_color;
3474         unsigned char *lm_bgr;
3475         unsigned char *lm_dir;
3476 }
3477 lightmapsample_t;
3478
3479 typedef struct lightmapvertex_s
3480 {
3481         int index;
3482         float pos[3];
3483         float normal[3];
3484         float texcoordbase[2];
3485         float texcoordlightmap[2];
3486         float lightcolor[4];
3487 }
3488 lightmapvertex_t;
3489
3490 typedef struct lightmaptriangle_s
3491 {
3492         int triangleindex;
3493         int surfaceindex;
3494         int lightmapindex;
3495         int axis;
3496         int lmoffset[2];
3497         int lmsize[2];
3498         // 2D modelspace coordinates of min corner
3499         // snapped to lightmap grid but not in grid coordinates
3500         float lmbase[2];
3501         // 2D modelspace to lightmap coordinate scale
3502         float lmscale[2];
3503         float vertex[3][3];
3504         float mins[3];
3505         float maxs[3];
3506 }
3507 lightmaptriangle_t;
3508
3509 typedef struct lightmaplight_s
3510 {
3511         float origin[3];
3512         float radius;
3513         float iradius;
3514         float radius2;
3515         float color[3];
3516         svbsp_t svbsp;
3517 }
3518 lightmaplight_t;
3519
3520 lightmaptriangle_t *mod_generatelightmaps_lightmaptriangles;
3521
3522 #define MAX_LIGHTMAPSAMPLES 64
3523 static int mod_generatelightmaps_numoffsets[3];
3524 static float mod_generatelightmaps_offsets[3][MAX_LIGHTMAPSAMPLES][3];
3525
3526 static int mod_generatelightmaps_numlights;
3527 static lightmaplight_t *mod_generatelightmaps_lightinfo;
3528
3529 extern cvar_t r_shadow_lightattenuationdividebias;
3530 extern cvar_t r_shadow_lightattenuationlinearscale;
3531
3532 static void Mod_GenerateLightmaps_LightPoint(dp_model_t *model, const vec3_t pos, vec3_t ambient, vec3_t diffuse, vec3_t lightdir)
3533 {
3534         int i;
3535         int index;
3536         int result;
3537         float relativepoint[3];
3538         float color[3];
3539         float dir[3];
3540         float dist;
3541         float dist2;
3542         float intensity;
3543         float sample[5*3];
3544         float lightorigin[3];
3545         float lightradius;
3546         float lightradius2;
3547         float lightiradius;
3548         float lightcolor[3];
3549         trace_t trace;
3550         for (i = 0;i < 5*3;i++)
3551                 sample[i] = 0.0f;
3552         for (index = 0;;index++)
3553         {
3554                 result = R_Shadow_GetRTLightInfo(index, lightorigin, &lightradius, lightcolor);
3555                 if (result < 0)
3556                         break;
3557                 if (result == 0)
3558                         continue;
3559                 lightradius2 = lightradius * lightradius;
3560                 VectorSubtract(lightorigin, pos, relativepoint);
3561                 dist2 = VectorLength2(relativepoint);
3562                 if (dist2 >= lightradius2)
3563                         continue;
3564                 lightiradius = 1.0f / lightradius;
3565                 dist = sqrt(dist2) * lightiradius;
3566                 intensity = (1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist);
3567                 if (intensity <= 0.0f)
3568                         continue;
3569                 if (model && model->TraceLine)
3570                 {
3571                         model->TraceLine(model, NULL, NULL, &trace, pos, lightorigin, SUPERCONTENTS_SOLID, 0, MATERIALFLAGMASK_TRANSLUCENT | MATERIALFLAG_NOSHADOW);
3572                         if (trace.fraction < 1)
3573                                 continue;
3574                 }
3575                 // scale down intensity to add to both ambient and diffuse
3576                 //intensity *= 0.5f;
3577                 VectorNormalize(relativepoint);
3578                 VectorScale(lightcolor, intensity, color);
3579                 VectorMA(sample    , 0.5f            , color, sample    );
3580                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3581                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3582                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3583                 // calculate a weighted average light direction as well
3584                 intensity *= VectorLength(color);
3585                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3586         }
3587         // calculate the direction we'll use to reduce the sample to a directional light source
3588         VectorCopy(sample + 12, dir);
3589         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3590         VectorNormalize(dir);
3591         // extract the diffuse color along the chosen direction and scale it
3592         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]);
3593         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]);
3594         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]);
3595         // subtract some of diffuse from ambient
3596         VectorMA(sample, -0.333f, diffuse, ambient);
3597         // store the normalized lightdir
3598         VectorCopy(dir, lightdir);
3599 }
3600
3601 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(const dp_model_t *model, svbsp_t *svbsp, const float *mins, const float *maxs)
3602 {
3603         int surfaceindex;
3604         int triangleindex;
3605         const msurface_t *surface;
3606         const float *vertex3f = model->surfmesh.data_vertex3f;
3607         const int *element3i = model->surfmesh.data_element3i;
3608         const int *e;
3609         float v2[3][3];
3610         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->nummodelsurfaces;surfaceindex++, surface++)
3611         {
3612                 if (!BoxesOverlap(surface->mins, surface->maxs, mins, maxs))
3613                         continue;
3614                 if (surface->texture->basematerialflags & MATERIALFLAG_NOSHADOW)
3615                         continue;
3616                 for (triangleindex = 0, e = element3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3617                 {
3618                         VectorCopy(vertex3f + 3*e[0], v2[0]);
3619                         VectorCopy(vertex3f + 3*e[1], v2[1]);
3620                         VectorCopy(vertex3f + 3*e[2], v2[2]);
3621                         SVBSP_AddPolygon(svbsp, 3, v2[0], true, NULL, NULL, 0);
3622                 }
3623         }
3624 }
3625
3626 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(dp_model_t *model, lightmaplight_t *lightinfo)
3627 {
3628         int maxnodes = 1<<14;
3629         svbsp_node_t *nodes;
3630         float origin[3];
3631         float mins[3];
3632         float maxs[3];
3633         svbsp_t svbsp;
3634         VectorSet(mins, lightinfo->origin[0] - lightinfo->radius, lightinfo->origin[1] - lightinfo->radius, lightinfo->origin[2] - lightinfo->radius);
3635         VectorSet(maxs, lightinfo->origin[0] + lightinfo->radius, lightinfo->origin[1] + lightinfo->radius, lightinfo->origin[2] + lightinfo->radius);
3636         VectorCopy(lightinfo->origin, origin);
3637         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3638         for (;;)
3639         {
3640                 SVBSP_Init(&svbsp, origin, maxnodes, nodes);
3641                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(model, &svbsp, mins, maxs);
3642                 if (svbsp.ranoutofnodes)
3643                 {
3644                         maxnodes *= 16;
3645                         if (maxnodes > 1<<22)
3646                         {
3647                                 Mem_Free(nodes);
3648                                 return;
3649                         }
3650                         Mem_Free(nodes);
3651                         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3652                 }
3653                 else
3654                         break;
3655         }
3656         if (svbsp.numnodes > 0)
3657         {
3658                 svbsp.nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, svbsp.numnodes * sizeof(*nodes));
3659                 memcpy(svbsp.nodes, nodes, svbsp.numnodes * sizeof(*nodes));
3660                 lightinfo->svbsp = svbsp;
3661         }
3662         Mem_Free(nodes);
3663 }
3664
3665 static void Mod_GenerateLightmaps_CreateLights(dp_model_t *model)
3666 {
3667         int index;
3668         int result;
3669         lightmaplight_t *lightinfo;
3670         float origin[3];
3671         float radius;
3672         float color[3];
3673         mod_generatelightmaps_numlights = 0;
3674         for (index = 0;;index++)
3675         {
3676                 result = R_Shadow_GetRTLightInfo(index, origin, &radius, color);
3677                 if (result < 0)
3678                         break;
3679                 if (result > 0)
3680                         mod_generatelightmaps_numlights++;
3681         }
3682         if (mod_generatelightmaps_numlights > 0)
3683         {
3684                 mod_generatelightmaps_lightinfo = (lightmaplight_t *)Mem_Alloc(tempmempool, mod_generatelightmaps_numlights * sizeof(*mod_generatelightmaps_lightinfo));
3685                 lightinfo = mod_generatelightmaps_lightinfo;
3686                 for (index = 0;;index++)
3687                 {
3688                         result = R_Shadow_GetRTLightInfo(index, lightinfo->origin, &lightinfo->radius, lightinfo->color);
3689                         if (result < 0)
3690                                 break;
3691                         if (result > 0)
3692                                 lightinfo++;
3693                 }
3694         }
3695         for (index = 0, lightinfo = mod_generatelightmaps_lightinfo;index < mod_generatelightmaps_numlights;index++, lightinfo++)
3696         {
3697                 lightinfo->iradius = 1.0f / lightinfo->radius;
3698                 lightinfo->radius2 = lightinfo->radius * lightinfo->radius;
3699                 // TODO: compute svbsp
3700                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(model, lightinfo);
3701         }
3702 }
3703
3704 static void Mod_GenerateLightmaps_DestroyLights(dp_model_t *model)
3705 {
3706         int i;
3707         if (mod_generatelightmaps_lightinfo)
3708         {
3709                 for (i = 0;i < mod_generatelightmaps_numlights;i++)
3710                         if (mod_generatelightmaps_lightinfo[i].svbsp.nodes)
3711                                 Mem_Free(mod_generatelightmaps_lightinfo[i].svbsp.nodes);
3712                 Mem_Free(mod_generatelightmaps_lightinfo);
3713         }
3714         mod_generatelightmaps_lightinfo = NULL;
3715         mod_generatelightmaps_numlights = 0;
3716 }
3717
3718 static qbool Mod_GenerateLightmaps_SamplePoint_SVBSP(const svbsp_t *svbsp, const float *pos)
3719 {
3720         const svbsp_node_t *node;
3721         const svbsp_node_t *nodes = svbsp->nodes;
3722         int num = 0;
3723         while (num >= 0)
3724         {
3725                 node = nodes + num;
3726                 num = node->children[DotProduct(node->plane, pos) < node->plane[3]];
3727         }
3728         return num == -1; // true if empty, false if solid (shadowed)
3729 }
3730
3731 static void Mod_GenerateLightmaps_SamplePoint(const float *pos, const float *normal, float *sample, int numoffsets, const float *offsets)
3732 {
3733         int i;
3734         float relativepoint[3];
3735         float color[3];
3736         float offsetpos[3];
3737         float dist;
3738         float dist2;
3739         float intensity;
3740         int offsetindex;
3741         int hits;
3742         int tests;
3743         const lightmaplight_t *lightinfo;
3744         trace_t trace;
3745         for (i = 0;i < 5*3;i++)
3746                 sample[i] = 0.0f;
3747         for (i = 0, lightinfo = mod_generatelightmaps_lightinfo;i < mod_generatelightmaps_numlights;i++, lightinfo++)
3748         {
3749                 //R_SampleRTLights(pos, sample, numoffsets, offsets);
3750                 VectorSubtract(lightinfo->origin, pos, relativepoint);
3751                 // don't accept light from behind a surface, it causes bad shading
3752                 if (normal && DotProduct(relativepoint, normal) <= 0)
3753                         continue;
3754                 dist2 = VectorLength2(relativepoint);
3755                 if (dist2 >= lightinfo->radius2)
3756                         continue;
3757                 dist = sqrt(dist2) * lightinfo->iradius;
3758                 intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
3759                 if (intensity <= 0)
3760                         continue;
3761                 if (cl.worldmodel && cl.worldmodel->TraceLine && numoffsets > 0)
3762                 {
3763                         hits = 0;
3764                         tests = 1;
3765                         if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, pos))
3766                                 hits++;
3767                         for (offsetindex = 1;offsetindex < numoffsets;offsetindex++)
3768                         {
3769                                 VectorAdd(pos, offsets + 3*offsetindex, offsetpos);
3770                                 if (!normal)
3771                                 {
3772                                         // for light grid we'd better check visibility of the offset point
3773                                         cl.worldmodel->TraceLine(cl.worldmodel, NULL, NULL, &trace, pos, offsetpos, SUPERCONTENTS_SOLID, 0, MATERIALFLAGMASK_TRANSLUCENT | MATERIALFLAG_NOSHADOW);
3774                                         if (trace.fraction < 1)
3775                                                 VectorLerp(pos, trace.fraction, offsetpos, offsetpos);
3776                                 }
3777                                 tests++;
3778                                 if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, offsetpos))
3779                                         hits++;
3780                         }
3781                         if (!hits)
3782                                 continue;
3783                         // scale intensity according to how many rays succeeded
3784                         // we know one test is valid, half of the rest will fail...
3785                         //if (normal && tests > 1)
3786                         //      intensity *= (tests - 1.0f) / tests;
3787                         intensity *= (float)hits / tests;
3788                 }
3789                 // scale down intensity to add to both ambient and diffuse
3790                 //intensity *= 0.5f;
3791                 VectorNormalize(relativepoint);
3792                 VectorScale(lightinfo->color, intensity, color);
3793                 VectorMA(sample    , 0.5f            , color, sample    );
3794                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3795                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3796                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3797                 // calculate a weighted average light direction as well
3798                 intensity *= VectorLength(color);
3799                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3800         }
3801 }
3802
3803 static void Mod_GenerateLightmaps_LightmapSample(const float *pos, const float *normal, unsigned char *lm_bgr, unsigned char *lm_dir)
3804 {
3805         float sample[5*3];
3806         float color[3];
3807         float dir[3];
3808         float f;
3809         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[0], mod_generatelightmaps_offsets[0][0]);
3810         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3811         VectorCopy(sample + 12, dir);
3812         VectorNormalize(dir);
3813         //VectorAdd(dir, normal, dir);
3814         //VectorNormalize(dir);
3815         f = DotProduct(dir, normal);
3816         f = max(0, f) * 255.0f;
3817         VectorScale(sample, f, color);
3818         //VectorCopy(normal, dir);
3819         VectorSet(dir, (dir[0]+1.0f)*127.5f, (dir[1]+1.0f)*127.5f, (dir[2]+1.0f)*127.5f);
3820         lm_bgr[0] = (unsigned char)bound(0.0f, color[2], 255.0f);
3821         lm_bgr[1] = (unsigned char)bound(0.0f, color[1], 255.0f);
3822         lm_bgr[2] = (unsigned char)bound(0.0f, color[0], 255.0f);
3823         lm_bgr[3] = 255;
3824         lm_dir[0] = (unsigned char)dir[2];
3825         lm_dir[1] = (unsigned char)dir[1];
3826         lm_dir[2] = (unsigned char)dir[0];
3827         lm_dir[3] = 255;
3828 }
3829
3830 static void Mod_GenerateLightmaps_VertexSample(const float *pos, const float *normal, float *vertex_color)
3831 {
3832         float sample[5*3];
3833         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[1], mod_generatelightmaps_offsets[1][0]);
3834         VectorCopy(sample, vertex_color);
3835 }
3836
3837 static void Mod_GenerateLightmaps_GridSample(const float *pos, q3dlightgrid_t *s)
3838 {
3839         float sample[5*3];
3840         float ambient[3];
3841         float diffuse[3];
3842         float dir[3];
3843         Mod_GenerateLightmaps_SamplePoint(pos, NULL, sample, mod_generatelightmaps_numoffsets[2], mod_generatelightmaps_offsets[2][0]);
3844         // calculate the direction we'll use to reduce the sample to a directional light source
3845         VectorCopy(sample + 12, dir);
3846         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3847         VectorNormalize(dir);
3848         // extract the diffuse color along the chosen direction and scale it
3849         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]) * 127.5f;
3850         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]) * 127.5f;
3851         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]) * 127.5f;
3852         // scale the ambient from 0-2 to 0-255 and subtract some of diffuse
3853         VectorScale(sample, 127.5f, ambient);
3854         VectorMA(ambient, -0.333f, diffuse, ambient);
3855         // encode to the grid format
3856         s->ambientrgb[0] = (unsigned char)bound(0.0f, ambient[0], 255.0f);
3857         s->ambientrgb[1] = (unsigned char)bound(0.0f, ambient[1], 255.0f);
3858         s->ambientrgb[2] = (unsigned char)bound(0.0f, ambient[2], 255.0f);
3859         s->diffusergb[0] = (unsigned char)bound(0.0f, diffuse[0], 255.0f);
3860         s->diffusergb[1] = (unsigned char)bound(0.0f, diffuse[1], 255.0f);
3861         s->diffusergb[2] = (unsigned char)bound(0.0f, diffuse[2], 255.0f);
3862         if (dir[2] >= 0.99f) {s->diffusepitch = 0;s->diffuseyaw = 0;}
3863         else if (dir[2] <= -0.99f) {s->diffusepitch = 128;s->diffuseyaw = 0;}
3864         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));}
3865 }
3866
3867 static void Mod_GenerateLightmaps_InitSampleOffsets(dp_model_t *model)
3868 {
3869         float radius[3];
3870         float temp[3];
3871         int i, j;
3872         memset(mod_generatelightmaps_offsets, 0, sizeof(mod_generatelightmaps_offsets));
3873         mod_generatelightmaps_numoffsets[0] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_lightmapsamples.integer);
3874         mod_generatelightmaps_numoffsets[1] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_vertexsamples.integer);
3875         mod_generatelightmaps_numoffsets[2] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_gridsamples.integer);
3876         radius[0] = mod_generatelightmaps_lightmapradius.value;
3877         radius[1] = mod_generatelightmaps_vertexradius.value;
3878         radius[2] = mod_generatelightmaps_gridradius.value;
3879         for (i = 0;i < 3;i++)
3880         {
3881                 for (j = 1;j < mod_generatelightmaps_numoffsets[i];j++)
3882                 {
3883                         VectorRandom(temp);
3884                         VectorScale(temp, radius[i], mod_generatelightmaps_offsets[i][j]);
3885                 }
3886         }
3887 }
3888
3889 static void Mod_GenerateLightmaps_DestroyLightmaps(dp_model_t *model)
3890 {
3891         msurface_t *surface;
3892         int surfaceindex;
3893         int i;
3894         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3895         {
3896                 surface = model->data_surfaces + surfaceindex;
3897                 surface->lightmaptexture = NULL;
3898                 surface->deluxemaptexture = NULL;
3899         }
3900         if (model->brushq3.data_lightmaps)
3901         {
3902                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3903                         if (model->brushq3.data_lightmaps[i])
3904                                 R_FreeTexture(model->brushq3.data_lightmaps[i]);
3905                 Mem_Free(model->brushq3.data_lightmaps);
3906                 model->brushq3.data_lightmaps = NULL;
3907         }
3908         if (model->brushq3.data_deluxemaps)
3909         {
3910                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3911                         if (model->brushq3.data_deluxemaps[i])
3912                                 R_FreeTexture(model->brushq3.data_deluxemaps[i]);
3913                 Mem_Free(model->brushq3.data_deluxemaps);
3914                 model->brushq3.data_deluxemaps = NULL;
3915         }
3916 }
3917
3918 static void Mod_GenerateLightmaps_UnweldTriangles(dp_model_t *model)
3919 {
3920         msurface_t *surface;
3921         int surfaceindex;
3922         int vertexindex;
3923         int outvertexindex;
3924         int i;
3925         const int *e;
3926         surfmesh_t oldsurfmesh;
3927         size_t size;
3928         unsigned char *data;
3929         oldsurfmesh = model->surfmesh;
3930         model->surfmesh.num_triangles = oldsurfmesh.num_triangles;
3931         model->surfmesh.num_vertices = oldsurfmesh.num_triangles * 3;
3932         size = 0;
3933         size += model->surfmesh.num_vertices * sizeof(float[3]);
3934         size += model->surfmesh.num_vertices * sizeof(float[3]);
3935         size += model->surfmesh.num_vertices * sizeof(float[3]);
3936         size += model->surfmesh.num_vertices * sizeof(float[3]);
3937         size += model->surfmesh.num_vertices * sizeof(float[2]);
3938         size += model->surfmesh.num_vertices * sizeof(float[2]);
3939         size += model->surfmesh.num_vertices * sizeof(float[4]);
3940         data = (unsigned char *)Mem_Alloc(model->mempool, size);
3941         model->surfmesh.data_vertex3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3942         model->surfmesh.data_normal3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3943         model->surfmesh.data_svector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3944         model->surfmesh.data_tvector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3945         model->surfmesh.data_texcoordtexture2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
3946         model->surfmesh.data_texcoordlightmap2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
3947         model->surfmesh.data_lightmapcolor4f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[4]);
3948         if (model->surfmesh.num_vertices > 65536)
3949                 model->surfmesh.data_element3s = NULL;
3950
3951         if (model->surfmesh.data_element3i_indexbuffer && !model->surfmesh.data_element3i_indexbuffer->isdynamic)
3952                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3i_indexbuffer);
3953         model->surfmesh.data_element3i_indexbuffer = NULL;
3954         if (model->surfmesh.data_element3s_indexbuffer && !model->surfmesh.data_element3s_indexbuffer->isdynamic)
3955                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3s_indexbuffer);
3956         model->surfmesh.data_element3s_indexbuffer = NULL;
3957         if (model->surfmesh.data_vertex3f_vertexbuffer && !model->surfmesh.data_vertex3f_vertexbuffer->isdynamic)
3958                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_vertex3f_vertexbuffer);
3959         model->surfmesh.data_vertex3f_vertexbuffer = NULL;
3960         model->surfmesh.data_svector3f_vertexbuffer = NULL;
3961         model->surfmesh.data_tvector3f_vertexbuffer = NULL;
3962         model->surfmesh.data_normal3f_vertexbuffer = NULL;
3963         model->surfmesh.data_texcoordtexture2f_vertexbuffer = NULL;
3964         model->surfmesh.data_texcoordlightmap2f_vertexbuffer = NULL;
3965         model->surfmesh.data_lightmapcolor4f_vertexbuffer = NULL;
3966         model->surfmesh.data_skeletalindex4ub_vertexbuffer = NULL;
3967         model->surfmesh.data_skeletalweight4ub_vertexbuffer = NULL;
3968
3969         // convert all triangles to unique vertex data
3970         outvertexindex = 0;
3971         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3972         {
3973                 surface = model->data_surfaces + surfaceindex;
3974                 surface->num_firstvertex = outvertexindex;
3975                 surface->num_vertices = surface->num_triangles*3;
3976                 e = oldsurfmesh.data_element3i + surface->num_firsttriangle*3;
3977                 for (i = 0;i < surface->num_triangles*3;i++)
3978                 {
3979                         vertexindex = e[i];
3980                         model->surfmesh.data_vertex3f[outvertexindex*3+0] = oldsurfmesh.data_vertex3f[vertexindex*3+0];
3981                         model->surfmesh.data_vertex3f[outvertexindex*3+1] = oldsurfmesh.data_vertex3f[vertexindex*3+1];
3982                         model->surfmesh.data_vertex3f[outvertexindex*3+2] = oldsurfmesh.data_vertex3f[vertexindex*3+2];
3983                         model->surfmesh.data_normal3f[outvertexindex*3+0] = oldsurfmesh.data_normal3f[vertexindex*3+0];
3984                         model->surfmesh.data_normal3f[outvertexindex*3+1] = oldsurfmesh.data_normal3f[vertexindex*3+1];
3985                         model->surfmesh.data_normal3f[outvertexindex*3+2] = oldsurfmesh.data_normal3f[vertexindex*3+2];
3986                         model->surfmesh.data_svector3f[outvertexindex*3+0] = oldsurfmesh.data_svector3f[vertexindex*3+0];
3987                         model->surfmesh.data_svector3f[outvertexindex*3+1] = oldsurfmesh.data_svector3f[vertexindex*3+1];
3988                         model->surfmesh.data_svector3f[outvertexindex*3+2] = oldsurfmesh.data_svector3f[vertexindex*3+2];
3989                         model->surfmesh.data_tvector3f[outvertexindex*3+0] = oldsurfmesh.data_tvector3f[vertexindex*3+0];
3990                         model->surfmesh.data_tvector3f[outvertexindex*3+1] = oldsurfmesh.data_tvector3f[vertexindex*3+1];
3991                         model->surfmesh.data_tvector3f[outvertexindex*3+2] = oldsurfmesh.data_tvector3f[vertexindex*3+2];
3992                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+0];
3993                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+1];
3994                         if (oldsurfmesh.data_texcoordlightmap2f)
3995                         {
3996                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+0];
3997                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+1];
3998                         }
3999                         if (oldsurfmesh.data_lightmapcolor4f)
4000                         {
4001                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+0] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+0];
4002                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+1] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+1];
4003                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+2] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+2];
4004                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+3] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+3];
4005                         }
4006                         else
4007                                 Vector4Set(model->surfmesh.data_lightmapcolor4f + 4*outvertexindex, 1, 1, 1, 1);
4008                         model->surfmesh.data_element3i[surface->num_firsttriangle*3+i] = outvertexindex;
4009                         outvertexindex++;
4010                 }
4011         }
4012         if (model->surfmesh.data_element3s)
4013                 for (i = 0;i < model->surfmesh.num_triangles*3;i++)
4014                         model->surfmesh.data_element3s[i] = model->surfmesh.data_element3i[i];
4015
4016         // find and update all submodels to use this new surfmesh data
4017         for (i = 0;i < model->brush.numsubmodels;i++)
4018                 model->brush.submodels[i]->surfmesh = model->surfmesh;
4019 }
4020
4021 static void Mod_GenerateLightmaps_CreateTriangleInformation(dp_model_t *model)
4022 {
4023         msurface_t *surface;
4024         int surfaceindex;
4025         int i;
4026         int axis;
4027         float normal[3];
4028         const int *e;
4029         lightmaptriangle_t *triangle;
4030         // generate lightmap triangle structs
4031         mod_generatelightmaps_lightmaptriangles = (lightmaptriangle_t *)Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4032         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4033         {
4034                 surface = model->data_surfaces + surfaceindex;
4035                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4036                 for (i = 0;i < surface->num_triangles;i++)
4037                 {
4038                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4039                         triangle->triangleindex = surface->num_firsttriangle+i;
4040                         triangle->surfaceindex = surfaceindex;
4041                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+0], triangle->vertex[0]);
4042                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+1], triangle->vertex[1]);
4043                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+2], triangle->vertex[2]);
4044                         // calculate bounds of triangle
4045                         triangle->mins[0] = min(triangle->vertex[0][0], min(triangle->vertex[1][0], triangle->vertex[2][0]));
4046                         triangle->mins[1] = min(triangle->vertex[0][1], min(triangle->vertex[1][1], triangle->vertex[2][1]));
4047                         triangle->mins[2] = min(triangle->vertex[0][2], min(triangle->vertex[1][2], triangle->vertex[2][2]));
4048                         triangle->maxs[0] = max(triangle->vertex[0][0], max(triangle->vertex[1][0], triangle->vertex[2][0]));
4049                         triangle->maxs[1] = max(triangle->vertex[0][1], max(triangle->vertex[1][1], triangle->vertex[2][1]));
4050                         triangle->maxs[2] = max(triangle->vertex[0][2], max(triangle->vertex[1][2], triangle->vertex[2][2]));
4051                         // pick an axial projection based on the triangle normal
4052                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], normal);
4053                         axis = 0;
4054                         if (fabs(normal[1]) > fabs(normal[axis]))
4055                                 axis = 1;
4056                         if (fabs(normal[2]) > fabs(normal[axis]))
4057                                 axis = 2;
4058                         triangle->axis = axis;
4059                 }
4060         }
4061 }
4062
4063 static void Mod_GenerateLightmaps_DestroyTriangleInformation(dp_model_t *model)
4064 {
4065         if (mod_generatelightmaps_lightmaptriangles)
4066                 Mem_Free(mod_generatelightmaps_lightmaptriangles);
4067         mod_generatelightmaps_lightmaptriangles = NULL;
4068 }
4069
4070 float lmaxis[3][3] = {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}};
4071
4072 static void Mod_GenerateLightmaps_CreateLightmaps(dp_model_t *model)
4073 {
4074         msurface_t *surface;
4075         int surfaceindex;
4076         int lightmapindex;
4077         int lightmapnumber;
4078         int i;
4079         int j;
4080         int k;
4081         int x;
4082         int y;
4083         int axis;
4084         int axis1;
4085         int axis2;
4086         int retry;
4087         int pixeloffset;
4088         float trianglenormal[3];
4089         float samplecenter[3];
4090         float samplenormal[3];
4091         float temp[3];
4092         float lmiscale[2];
4093         float slopex;
4094         float slopey;
4095         float slopebase;
4096         float lmscalepixels;
4097         float lmmins;
4098         float lmmaxs;
4099         float lm_basescalepixels;
4100         int lm_borderpixels;
4101         int lm_texturesize;
4102         //int lm_maxpixels;
4103         const int *e;
4104         lightmaptriangle_t *triangle;
4105         unsigned char *lightmappixels;
4106         unsigned char *deluxemappixels;
4107         mod_alloclightmap_state_t lmstate;
4108         char vabuf[1024];
4109
4110         // generate lightmap projection information for all triangles
4111         if (model->texturepool == NULL)
4112                 model->texturepool = R_AllocTexturePool();
4113         lm_basescalepixels = 1.0f / max(0.0001f, mod_generatelightmaps_unitspersample.value);
4114         lm_borderpixels = mod_generatelightmaps_borderpixels.integer;
4115         lm_texturesize = bound(lm_borderpixels*2+1, 64, (int)vid.maxtexturesize_2d);
4116         //lm_maxpixels = lm_texturesize-(lm_borderpixels*2+1);
4117         Mod_AllocLightmap_Init(&lmstate, loadmodel->mempool, lm_texturesize, lm_texturesize);
4118         lightmapnumber = 0;
4119         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4120         {
4121                 surface = model->data_surfaces + surfaceindex;
4122                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4123                 lmscalepixels = lm_basescalepixels;
4124                 for (retry = 0;retry < 30;retry++)
4125                 {
4126                         // after a couple failed attempts, degrade quality to make it fit
4127                         if (retry > 1)
4128                                 lmscalepixels *= 0.5f;
4129                         for (i = 0;i < surface->num_triangles;i++)
4130                         {
4131                                 triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4132                                 triangle->lightmapindex = lightmapnumber;
4133                                 // calculate lightmap bounds in 3D pixel coordinates, limit size,
4134                                 // pick two planar axes for projection
4135                                 // lightmap coordinates here are in pixels
4136                                 // lightmap projections are snapped to pixel grid explicitly, such
4137                                 // that two neighboring triangles sharing an edge and projection
4138                                 // axis will have identical sample spacing along their shared edge
4139                                 k = 0;
4140                                 for (j = 0;j < 3;j++)
4141                                 {
4142                                         if (j == triangle->axis)
4143                                                 continue;
4144                                         lmmins = floor(triangle->mins[j]*lmscalepixels)-lm_borderpixels;
4145                                         lmmaxs = floor(triangle->maxs[j]*lmscalepixels)+lm_borderpixels;
4146                                         triangle->lmsize[k] = (int)(lmmaxs-lmmins);
4147                                         triangle->lmbase[k] = lmmins/lmscalepixels;
4148                                         triangle->lmscale[k] = lmscalepixels;
4149                                         k++;
4150                                 }
4151                                 if (!Mod_AllocLightmap_Block(&lmstate, triangle->lmsize[0], triangle->lmsize[1], &triangle->lmoffset[0], &triangle->lmoffset[1]))
4152                                         break;
4153                         }
4154                         // if all fit in this texture, we're done with this surface
4155                         if (i == surface->num_triangles)
4156                                 break;
4157                         // if we haven't maxed out the lightmap size yet, we retry the
4158                         // entire surface batch...
4159                         if (lm_texturesize * 2 <= min(mod_generatelightmaps_texturesize.integer, (int)vid.maxtexturesize_2d))
4160                         {
4161                                 lm_texturesize *= 2;
4162                                 surfaceindex = -1;
4163                                 lightmapnumber = 0;
4164                                 Mod_AllocLightmap_Free(&lmstate);
4165                                 Mod_AllocLightmap_Init(&lmstate, loadmodel->mempool, lm_texturesize, lm_texturesize);
4166                                 break;
4167                         }
4168                         // if we have maxed out the lightmap size, and this triangle does
4169                         // not fit in the same texture as the rest of the surface, we have
4170                         // to retry the entire surface in a new texture (can only use one)
4171                         // with multiple retries, the lightmap quality degrades until it
4172                         // fits (or gives up)
4173                         if (surfaceindex > 0)
4174                                 lightmapnumber++;
4175                         Mod_AllocLightmap_Reset(&lmstate);
4176                 }
4177         }
4178         lightmapnumber++;
4179         Mod_AllocLightmap_Free(&lmstate);
4180
4181         // now put triangles together into lightmap textures, and do not allow
4182         // triangles of a surface to go into different textures (as that would
4183         // require rewriting the surface list)
4184         model->brushq3.deluxemapping_modelspace = true;
4185         model->brushq3.deluxemapping = true;
4186         model->brushq3.num_mergedlightmaps = lightmapnumber;
4187         model->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4188         model->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4189         lightmappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4190         deluxemappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4191         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4192         {
4193                 surface = model->data_surfaces + surfaceindex;
4194                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4195                 for (i = 0;i < surface->num_triangles;i++)
4196                 {
4197                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4198                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], trianglenormal);
4199                         VectorNormalize(trianglenormal);
4200                         VectorCopy(trianglenormal, samplenormal); // FIXME: this is supposed to be interpolated per pixel from vertices
4201                         axis = triangle->axis;
4202                         axis1 = axis == 0 ? 1 : 0;
4203                         axis2 = axis == 2 ? 1 : 2;
4204                         lmiscale[0] = 1.0f / triangle->lmscale[0];
4205                         lmiscale[1] = 1.0f / triangle->lmscale[1];
4206                         if (trianglenormal[axis] < 0)
4207                                 VectorNegate(trianglenormal, trianglenormal);
4208                         CrossProduct(lmaxis[axis2], trianglenormal, temp);slopex = temp[axis] / temp[axis1];
4209                         CrossProduct(lmaxis[axis1], trianglenormal, temp);slopey = temp[axis] / temp[axis2];
4210                         slopebase = triangle->vertex[0][axis] - triangle->vertex[0][axis1]*slopex - triangle->vertex[0][axis2]*slopey;
4211                         for (j = 0;j < 3;j++)
4212                         {
4213                                 float *t2f = model->surfmesh.data_texcoordlightmap2f + e[i*3+j]*2;
4214                                 t2f[0] = ((triangle->vertex[j][axis1] - triangle->lmbase[0]) * triangle->lmscale[0] + triangle->lmoffset[0]) / lm_texturesize;
4215                                 t2f[1] = ((triangle->vertex[j][axis2] - triangle->lmbase[1]) * triangle->lmscale[1] + triangle->lmoffset[1]) / lm_texturesize;
4216 #if 0
4217                                 samplecenter[axis1] = (t2f[0]*lm_texturesize-triangle->lmoffset[0])*lmiscale[0] + triangle->lmbase[0];
4218                                 samplecenter[axis2] = (t2f[1]*lm_texturesize-triangle->lmoffset[1])*lmiscale[1] + triangle->lmbase[1];
4219                                 samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4220                                 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]);
4221 #endif
4222                         }
4223
4224 #if 0
4225                         switch (axis)
4226                         {
4227                         default:
4228                         case 0:
4229                                 forward[0] = 0;
4230                                 forward[1] = 1.0f / triangle->lmscale[0];
4231                                 forward[2] = 0;
4232                                 left[0] = 0;
4233                                 left[1] = 0;
4234                                 left[2] = 1.0f / triangle->lmscale[1];
4235                                 up[0] = 1.0f;
4236                                 up[1] = 0;
4237                                 up[2] = 0;
4238                                 origin[0] = 0;
4239                                 origin[1] = triangle->lmbase[0];
4240                                 origin[2] = triangle->lmbase[1];
4241                                 break;
4242                         case 1:
4243                                 forward[0] = 1.0f / triangle->lmscale[0];
4244                                 forward[1] = 0;
4245                                 forward[2] = 0;
4246                                 left[0] = 0;
4247                                 left[1] = 0;
4248                                 left[2] = 1.0f / triangle->lmscale[1];
4249                                 up[0] = 0;
4250                                 up[1] = 1.0f;
4251                                 up[2] = 0;
4252                                 origin[0] = triangle->lmbase[0];
4253                                 origin[1] = 0;
4254                                 origin[2] = triangle->lmbase[1];
4255                                 break;
4256                         case 2:
4257                                 forward[0] = 1.0f / triangle->lmscale[0];
4258                                 forward[1] = 0;
4259                                 forward[2] = 0;
4260                                 left[0] = 0;
4261                                 left[1] = 1.0f / triangle->lmscale[1];
4262                                 left[2] = 0;
4263                                 up[0] = 0;
4264                                 up[1] = 0;
4265                                 up[2] = 1.0f;
4266                                 origin[0] = triangle->lmbase[0];
4267                                 origin[1] = triangle->lmbase[1];
4268                                 origin[2] = 0;
4269                                 break;
4270                         }
4271                         Matrix4x4_FromVectors(&backmatrix, forward, left, up, origin);
4272 #endif
4273 #define LM_DIST_EPSILON (1.0f / 32.0f)
4274                         for (y = 0;y < triangle->lmsize[1];y++)
4275                         {
4276                                 pixeloffset = ((triangle->lightmapindex * lm_texturesize + y + triangle->lmoffset[1]) * lm_texturesize + triangle->lmoffset[0]) * 4;
4277                                 for (x = 0;x < triangle->lmsize[0];x++, pixeloffset += 4)
4278                                 {
4279                                         samplecenter[axis1] = (x+0.5f)*lmiscale[0] + triangle->lmbase[0];
4280                                         samplecenter[axis2] = (y+0.5f)*lmiscale[1] + triangle->lmbase[1];
4281                                         samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4282                                         VectorMA(samplecenter, 0.125f, samplenormal, samplecenter);
4283                                         Mod_GenerateLightmaps_LightmapSample(samplecenter, samplenormal, lightmappixels + pixeloffset, deluxemappixels + pixeloffset);
4284                                 }
4285                         }
4286                 }
4287         }
4288
4289         for (lightmapindex = 0;lightmapindex < model->brushq3.num_mergedlightmaps;lightmapindex++)
4290         {
4291                 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);
4292                 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);
4293         }
4294
4295         if (lightmappixels)
4296                 Mem_Free(lightmappixels);
4297         if (deluxemappixels)
4298                 Mem_Free(deluxemappixels);
4299
4300         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4301         {
4302                 surface = model->data_surfaces + surfaceindex;
4303                 if (!surface->num_triangles)
4304                         continue;
4305                 lightmapindex = mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle].lightmapindex;
4306                 surface->lightmaptexture = model->brushq3.data_lightmaps[lightmapindex];
4307                 surface->deluxemaptexture = model->brushq3.data_deluxemaps[lightmapindex];
4308                 surface->lightmapinfo = NULL;
4309         }
4310
4311         model->brush.LightPoint = Mod_GenerateLightmaps_LightPoint;
4312         model->brushq1.lightdata = NULL;
4313         model->brushq1.lightmapupdateflags = NULL;
4314         model->brushq1.firstrender = false;
4315         model->brushq1.num_lightstyles = 0;
4316         model->brushq1.data_lightstyleinfo = NULL;
4317         for (i = 0;i < model->brush.numsubmodels;i++)
4318         {
4319                 model->brush.submodels[i]->brushq1.lightmapupdateflags = NULL;
4320                 model->brush.submodels[i]->brushq1.firstrender = false;
4321                 model->brush.submodels[i]->brushq1.num_lightstyles = 0;
4322                 model->brush.submodels[i]->brushq1.data_lightstyleinfo = NULL;
4323         }
4324 }
4325
4326 static void Mod_GenerateLightmaps_UpdateVertexColors(dp_model_t *model)
4327 {
4328         int i;
4329         for (i = 0;i < model->surfmesh.num_vertices;i++)
4330                 Mod_GenerateLightmaps_VertexSample(model->surfmesh.data_vertex3f + 3*i, model->surfmesh.data_normal3f + 3*i, model->surfmesh.data_lightmapcolor4f + 4*i);
4331 }
4332
4333 static void Mod_GenerateLightmaps_UpdateLightGrid(dp_model_t *model)
4334 {
4335         int x;
4336         int y;
4337         int z;
4338         int index = 0;
4339         float pos[3];
4340         for (z = 0;z < model->brushq3.num_lightgrid_isize[2];z++)
4341         {
4342                 pos[2] = (model->brushq3.num_lightgrid_imins[2] + z + 0.5f) * model->brushq3.num_lightgrid_cellsize[2];
4343                 for (y = 0;y < model->brushq3.num_lightgrid_isize[1];y++)
4344                 {
4345                         pos[1] = (model->brushq3.num_lightgrid_imins[1] + y + 0.5f) * model->brushq3.num_lightgrid_cellsize[1];
4346                         for (x = 0;x < model->brushq3.num_lightgrid_isize[0];x++, index++)
4347                         {
4348                                 pos[0] = (model->brushq3.num_lightgrid_imins[0] + x + 0.5f) * model->brushq3.num_lightgrid_cellsize[0];
4349                                 Mod_GenerateLightmaps_GridSample(pos, model->brushq3.data_lightgrid + index);
4350                         }
4351                 }
4352         }
4353 }
4354
4355 extern cvar_t mod_q3bsp_nolightmaps;
4356 static void Mod_GenerateLightmaps(dp_model_t *model)
4357 {
4358         //lightmaptriangle_t *lightmaptriangles = Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4359         dp_model_t *oldloadmodel = loadmodel;
4360         loadmodel = model;
4361
4362         Mod_GenerateLightmaps_InitSampleOffsets(model);
4363         Mod_GenerateLightmaps_DestroyLightmaps(model);
4364         Mod_GenerateLightmaps_UnweldTriangles(model);
4365         Mod_GenerateLightmaps_CreateTriangleInformation(model);
4366         Mod_GenerateLightmaps_CreateLights(model);
4367         if(!mod_q3bsp_nolightmaps.integer)
4368                 Mod_GenerateLightmaps_CreateLightmaps(model);
4369         Mod_GenerateLightmaps_UpdateVertexColors(model);
4370         Mod_GenerateLightmaps_UpdateLightGrid(model);
4371         Mod_GenerateLightmaps_DestroyLights(model);
4372         Mod_GenerateLightmaps_DestroyTriangleInformation(model);
4373
4374         loadmodel = oldloadmodel;
4375 }
4376
4377 static void Mod_GenerateLightmaps_f(cmd_state_t *cmd)
4378 {
4379         if (Cmd_Argc(cmd) != 1)
4380         {
4381                 Con_Printf("usage: mod_generatelightmaps\n");
4382                 return;
4383         }
4384         if (!cl.worldmodel)
4385         {
4386                 Con_Printf("no worldmodel loaded\n");
4387                 return;
4388         }
4389         Mod_GenerateLightmaps(cl.worldmodel);
4390 }
4391
4392 void Mod_Mesh_Create(dp_model_t *mod, const char *name)
4393 {
4394         memset(mod, 0, sizeof(*mod));
4395         strlcpy(mod->name, name, sizeof(mod->name));
4396         mod->mempool = Mem_AllocPool(name, 0, NULL);
4397         mod->texturepool = R_AllocTexturePool();
4398         mod->Draw = R_Mod_Draw;
4399         mod->DrawDepth = R_Mod_DrawDepth;
4400         mod->DrawDebug = R_Mod_DrawDebug;
4401         mod->DrawPrepass = R_Mod_DrawPrepass;
4402         mod->GetLightInfo = R_Mod_GetLightInfo;
4403         mod->DrawShadowMap = R_Mod_DrawShadowMap;
4404         mod->DrawLight = R_Mod_DrawLight;
4405 }
4406
4407 void Mod_Mesh_Destroy(dp_model_t *mod)
4408 {
4409         Mod_UnloadModel(mod);
4410 }
4411
4412 // resets the mesh model to have no geometry to render, ready for a new frame -
4413 // the mesh will be prepared for rendering later using Mod_Mesh_Finalize
4414 void Mod_Mesh_Reset(dp_model_t *mod)
4415 {
4416         mod->num_surfaces = 0;
4417         mod->surfmesh.num_vertices = 0;
4418         mod->surfmesh.num_triangles = 0;
4419         memset(mod->surfmesh.data_vertexhash, -1, mod->surfmesh.num_vertexhashsize * sizeof(*mod->surfmesh.data_vertexhash));
4420         mod->DrawSky = NULL; // will be set if a texture needs it
4421         mod->DrawAddWaterPlanes = NULL; // will be set if a texture needs it
4422 }
4423
4424 texture_t *Mod_Mesh_GetTexture(dp_model_t *mod, const char *name, int defaultdrawflags, int defaulttexflags, int defaultmaterialflags)
4425 {
4426         int i;
4427         texture_t *t;
4428         int drawflag = defaultdrawflags & DRAWFLAG_MASK;
4429         for (i = 0, t = mod->data_textures; i < mod->num_textures; i++, t++)
4430                 if (!strcmp(t->name, name) && t->mesh_drawflag == drawflag && t->mesh_defaulttexflags == defaulttexflags && t->mesh_defaultmaterialflags == defaultmaterialflags)
4431                         return t;
4432         if (mod->max_textures <= mod->num_textures)
4433         {
4434                 texture_t *oldtextures = mod->data_textures;
4435                 mod->max_textures = max(mod->max_textures * 2, 1024);
4436                 mod->data_textures = (texture_t *)Mem_Realloc(mod->mempool, mod->data_textures, mod->max_textures * sizeof(*mod->data_textures));
4437                 // update the pointers
4438                 for (i = 0; i < mod->num_surfaces; i++)
4439                         mod->data_surfaces[i].texture = mod->data_textures + (mod->data_surfaces[i].texture - oldtextures);
4440         }
4441         t = &mod->data_textures[mod->num_textures++];
4442         Mod_LoadTextureFromQ3Shader(mod->mempool, mod->name, t, name, true, true, defaulttexflags, defaultmaterialflags);
4443         t->mesh_drawflag = drawflag;
4444         t->mesh_defaulttexflags = defaulttexflags;
4445         t->mesh_defaultmaterialflags = defaultmaterialflags;
4446         switch (defaultdrawflags & DRAWFLAG_MASK)
4447         {
4448         case DRAWFLAG_ADDITIVE:
4449                 t->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED;
4450                 t->currentmaterialflags = t->basematerialflags;
4451                 break;
4452         case DRAWFLAG_MODULATE:
4453                 t->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_BLENDED;
4454                 t->currentmaterialflags = t->basematerialflags;
4455                 t->customblendfunc[0] = GL_DST_COLOR;
4456                 t->customblendfunc[1] = GL_ZERO;
4457                 break;
4458         case DRAWFLAG_2XMODULATE:
4459                 t->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_BLENDED;
4460                 t->currentmaterialflags = t->basematerialflags;
4461                 t->customblendfunc[0] = GL_DST_COLOR;
4462                 t->customblendfunc[1] = GL_SRC_COLOR;
4463                 break;
4464         case DRAWFLAG_SCREEN:
4465                 t->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_BLENDED;
4466                 t->currentmaterialflags = t->basematerialflags;
4467                 t->customblendfunc[0] = GL_ONE_MINUS_DST_COLOR;
4468                 t->customblendfunc[1] = GL_ONE;
4469                 break;
4470         default:
4471                 break;
4472         }
4473         return t;
4474 }
4475
4476 msurface_t *Mod_Mesh_AddSurface(dp_model_t *mod, texture_t *tex, qbool batchwithprevioussurface)
4477 {
4478         msurface_t *surf;
4479         // batch if possible; primarily useful for UI rendering where bounding boxes don't matter
4480         if (batchwithprevioussurface && mod->num_surfaces > 0 && mod->data_surfaces[mod->num_surfaces - 1].texture == tex)
4481                 return mod->data_surfaces + mod->num_surfaces - 1;
4482         // create new surface
4483         if (mod->max_surfaces == mod->num_surfaces)
4484         {
4485                 mod->max_surfaces = 2 * max(mod->num_surfaces, 64);
4486                 mod->data_surfaces = (msurface_t *)Mem_Realloc(mod->mempool, mod->data_surfaces, mod->max_surfaces * sizeof(*mod->data_surfaces));
4487                 mod->sortedmodelsurfaces = (int *)Mem_Realloc(mod->mempool, mod->sortedmodelsurfaces, mod->max_surfaces * sizeof(*mod->sortedmodelsurfaces));
4488         }
4489         surf = mod->data_surfaces + mod->num_surfaces;
4490         mod->num_surfaces++;
4491         memset(surf, 0, sizeof(*surf));
4492         surf->texture = tex;
4493         surf->num_firsttriangle = mod->surfmesh.num_triangles;
4494         surf->num_firstvertex = mod->surfmesh.num_vertices;
4495         if (tex->basematerialflags & (MATERIALFLAG_SKY))
4496                 mod->DrawSky = R_Mod_DrawSky;
4497         if (tex->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
4498                 mod->DrawAddWaterPlanes = R_Mod_DrawAddWaterPlanes;
4499         return surf;
4500 }
4501
4502 int Mod_Mesh_IndexForVertex(dp_model_t *mod, msurface_t *surf, float x, float y, float z, float nx, float ny, float nz, float s, float t, float u, float v, float r, float g, float b, float a)
4503 {
4504         int hashindex, h, vnum, mask;
4505         surfmesh_t *mesh = &mod->surfmesh;
4506         if (mesh->max_vertices == mesh->num_vertices)
4507         {
4508                 mesh->max_vertices = max(mesh->num_vertices * 2, 256);
4509                 mesh->data_vertex3f = (float *)Mem_Realloc(mod->mempool, mesh->data_vertex3f, mesh->max_vertices * sizeof(float[3]));
4510                 mesh->data_svector3f = (float *)Mem_Realloc(mod->mempool, mesh->data_svector3f, mesh->max_vertices * sizeof(float[3]));
4511                 mesh->data_tvector3f = (float *)Mem_Realloc(mod->mempool, mesh->data_tvector3f, mesh->max_vertices * sizeof(float[3]));
4512                 mesh->data_normal3f = (float *)Mem_Realloc(mod->mempool, mesh->data_normal3f, mesh->max_vertices * sizeof(float[3]));
4513                 mesh->data_texcoordtexture2f = (float *)Mem_Realloc(mod->mempool, mesh->data_texcoordtexture2f, mesh->max_vertices * sizeof(float[2]));
4514                 mesh->data_texcoordlightmap2f = (float *)Mem_Realloc(mod->mempool, mesh->data_texcoordlightmap2f, mesh->max_vertices * sizeof(float[2]));
4515                 mesh->data_lightmapcolor4f = (float *)Mem_Realloc(mod->mempool, mesh->data_lightmapcolor4f, mesh->max_vertices * sizeof(float[4]));
4516                 // rebuild the hash table
4517                 mesh->num_vertexhashsize = 4 * mesh->max_vertices;
4518                 mesh->num_vertexhashsize &= ~(mesh->num_vertexhashsize - 1); // round down to pow2
4519                 mesh->data_vertexhash = (int *)Mem_Realloc(mod->mempool, mesh->data_vertexhash, mesh->num_vertexhashsize * sizeof(*mesh->data_vertexhash));
4520                 memset(mesh->data_vertexhash, -1, mesh->num_vertexhashsize * sizeof(*mesh->data_vertexhash));
4521                 mask = mod->surfmesh.num_vertexhashsize - 1;
4522                 // no need to hash the vertices for the entire model, the latest surface will suffice.
4523                 for (vnum = surf ? surf->num_firstvertex : 0; vnum < mesh->num_vertices; vnum++)
4524                 {
4525                         // this uses prime numbers intentionally for computing the hash
4526                         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;
4527                         for (h = hashindex; mesh->data_vertexhash[h] >= 0; h = (h + 1) & mask)
4528                                 ; // just iterate until we find the terminator
4529                         mesh->data_vertexhash[h] = vnum;
4530                 }
4531         }
4532         mask = mod->surfmesh.num_vertexhashsize - 1;
4533         // this uses prime numbers intentionally for computing the hash
4534         hashindex = (unsigned int)(x * 2003 + y * 4001 + z * 7919 + nx * 4097 + ny * 257 + nz * 17) & mask;
4535         // when possible find an identical vertex within the same surface and return it
4536         for(h = hashindex;(vnum = mesh->data_vertexhash[h]) >= 0;h = (h + 1) & mask)
4537         {
4538                 if (vnum >= surf->num_firstvertex
4539                  && mesh->data_vertex3f[vnum * 3 + 0] == x && mesh->data_vertex3f[vnum * 3 + 1] == y && mesh->data_vertex3f[vnum * 3 + 2] == z
4540                  && mesh->data_normal3f[vnum * 3 + 0] == nx && mesh->data_normal3f[vnum * 3 + 1] == ny && mesh->data_normal3f[vnum * 3 + 2] == nz
4541                  && mesh->data_texcoordtexture2f[vnum * 2 + 0] == s && mesh->data_texcoordtexture2f[vnum * 2 + 1] == t
4542                  && mesh->data_texcoordlightmap2f[vnum * 2 + 0] == u && mesh->data_texcoordlightmap2f[vnum * 2 + 1] == v
4543                  && 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)
4544                         return vnum;
4545         }
4546         // add the new vertex
4547         vnum = mesh->num_vertices++;
4548         if (surf->num_vertices > 0)
4549         {
4550                 if (surf->mins[0] > x) surf->mins[0] = x;
4551                 if (surf->mins[1] > y) surf->mins[1] = y;
4552                 if (surf->mins[2] > z) surf->mins[2] = z;
4553                 if (surf->maxs[0] < x) surf->maxs[0] = x;
4554                 if (surf->maxs[1] < y) surf->maxs[1] = y;
4555                 if (surf->maxs[2] < z) surf->maxs[2] = z;
4556         }
4557         else
4558         {
4559                 VectorSet(surf->mins, x, y, z);
4560                 VectorSet(surf->maxs, x, y, z);
4561         }
4562         surf->num_vertices = mesh->num_vertices - surf->num_firstvertex;
4563         mesh->data_vertexhash[h] = vnum;
4564         mesh->data_vertex3f[vnum * 3 + 0] = x;
4565         mesh->data_vertex3f[vnum * 3 + 1] = y;
4566         mesh->data_vertex3f[vnum * 3 + 2] = z;
4567         mesh->data_normal3f[vnum * 3 + 0] = nx;
4568         mesh->data_normal3f[vnum * 3 + 1] = ny;
4569         mesh->data_normal3f[vnum * 3 + 2] = nz;
4570         mesh->data_texcoordtexture2f[vnum * 2 + 0] = s;
4571         mesh->data_texcoordtexture2f[vnum * 2 + 1] = t;
4572         mesh->data_texcoordlightmap2f[vnum * 2 + 0] = u;
4573         mesh->data_texcoordlightmap2f[vnum * 2 + 1] = v;
4574         mesh->data_lightmapcolor4f[vnum * 4 + 0] = r;
4575         mesh->data_lightmapcolor4f[vnum * 4 + 1] = g;
4576         mesh->data_lightmapcolor4f[vnum * 4 + 2] = b;
4577         mesh->data_lightmapcolor4f[vnum * 4 + 3] = a;
4578         return vnum;
4579 }
4580
4581 void Mod_Mesh_AddTriangle(dp_model_t *mod, msurface_t *surf, int e0, int e1, int e2)
4582 {
4583         surfmesh_t *mesh = &mod->surfmesh;
4584         if (mesh->max_triangles == mesh->num_triangles)
4585         {
4586                 mesh->max_triangles = 2 * max(mesh->num_triangles, 128);
4587                 mesh->data_element3s = (unsigned short *)Mem_Realloc(mod->mempool, mesh->data_element3s, mesh->max_triangles * sizeof(unsigned short[3]));
4588                 mesh->data_element3i = (int *)Mem_Realloc(mod->mempool, mesh->data_element3i, mesh->max_triangles * sizeof(int[3]));
4589         }
4590         mesh->data_element3s[mesh->num_triangles * 3 + 0] = e0;
4591         mesh->data_element3s[mesh->num_triangles * 3 + 1] = e1;
4592         mesh->data_element3s[mesh->num_triangles * 3 + 2] = e2;
4593         mesh->data_element3i[mesh->num_triangles * 3 + 0] = e0;
4594         mesh->data_element3i[mesh->num_triangles * 3 + 1] = e1;
4595         mesh->data_element3i[mesh->num_triangles * 3 + 2] = e2;
4596         mesh->num_triangles++;
4597         surf->num_triangles++;
4598 }
4599
4600 static void Mod_Mesh_MakeSortedSurfaces(dp_model_t *mod)
4601 {
4602         int i, j;
4603         texture_t *tex;
4604         msurface_t *surf, *surf2;
4605
4606         // build the sorted surfaces list properly to reduce material setup
4607         // this is easy because we're just sorting on texture and don't care about the order of textures
4608         mod->nummodelsurfaces = 0;
4609         for (i = 0; i < mod->num_surfaces; i++)
4610                 mod->data_surfaces[i].included = false;
4611         for (i = 0; i < mod->num_surfaces; i++)
4612         {
4613                 surf = mod->data_surfaces + i;
4614                 if (surf->included)
4615                         continue;
4616                 tex = surf->texture;
4617                 // j = i is intentional
4618                 for (j = i; j < mod->num_surfaces; j++)
4619                 {
4620                         surf2 = mod->data_surfaces + j;
4621                         if (surf2->included)
4622                                 continue;
4623                         if (surf2->texture == tex)
4624                         {
4625                                 surf2->included = true;
4626                                 mod->sortedmodelsurfaces[mod->nummodelsurfaces++] = j;
4627                         }
4628                 }
4629         }
4630 }
4631
4632 static void Mod_Mesh_ComputeBounds(dp_model_t *mod)
4633 {
4634         int i;
4635         vec_t x2a, x2b, y2a, y2b, z2a, z2b, x2, y2, z2, yawradius, rotatedradius;
4636
4637         if (mod->surfmesh.num_vertices > 0)
4638         {
4639                 // calculate normalmins/normalmaxs
4640                 VectorCopy(mod->surfmesh.data_vertex3f, mod->normalmins);
4641                 VectorCopy(mod->surfmesh.data_vertex3f, mod->normalmaxs);
4642                 for (i = 1; i < mod->surfmesh.num_vertices; i++)
4643                 {
4644                         float x = mod->surfmesh.data_vertex3f[i * 3 + 0];
4645                         float y = mod->surfmesh.data_vertex3f[i * 3 + 1];
4646                         float z = mod->surfmesh.data_vertex3f[i * 3 + 2];
4647                         // expand bounds to include this vertex
4648                         if (mod->normalmins[0] > x) mod->normalmins[0] = x;
4649                         if (mod->normalmins[1] > y) mod->normalmins[1] = y;
4650                         if (mod->normalmins[2] > z) mod->normalmins[2] = z;
4651                         if (mod->normalmaxs[0] < x) mod->normalmaxs[0] = x;
4652                         if (mod->normalmaxs[1] < y) mod->normalmaxs[1] = y;
4653                         if (mod->normalmaxs[2] < z) mod->normalmaxs[2] = z;
4654                 }
4655                 // calculate yawmins/yawmaxs, rotatedmins/maxs from normalmins/maxs
4656                 // (fast but less accurate than doing it per vertex)
4657                 x2a = mod->normalmins[0] * mod->normalmins[0];
4658                 x2b = mod->normalmaxs[0] * mod->normalmaxs[0];
4659                 y2a = mod->normalmins[1] * mod->normalmins[1];
4660                 y2b = mod->normalmaxs[1] * mod->normalmaxs[1];
4661                 z2a = mod->normalmins[2] * mod->normalmins[2];
4662                 z2b = mod->normalmaxs[2] * mod->normalmaxs[2];
4663                 x2 = max(x2a, x2b);
4664                 y2 = max(y2a, y2b);
4665                 z2 = max(z2a, z2b);
4666                 yawradius = sqrt(x2 + y2);
4667                 rotatedradius = sqrt(x2 + y2 + z2);
4668                 VectorSet(mod->yawmins, -yawradius, -yawradius, mod->normalmins[2]);
4669                 VectorSet(mod->yawmaxs, yawradius, yawradius, mod->normalmaxs[2]);
4670                 VectorSet(mod->rotatedmins, -rotatedradius, -rotatedradius, -rotatedradius);
4671                 VectorSet(mod->rotatedmaxs, rotatedradius, rotatedradius, rotatedradius);
4672                 mod->radius = rotatedradius;
4673                 mod->radius2 = x2 + y2 + z2;
4674         }
4675         else
4676         {
4677                 VectorClear(mod->normalmins);
4678                 VectorClear(mod->normalmaxs);
4679                 VectorClear(mod->yawmins);
4680                 VectorClear(mod->yawmaxs);
4681                 VectorClear(mod->rotatedmins);
4682                 VectorClear(mod->rotatedmaxs);
4683                 mod->radius = 0;
4684                 mod->radius2 = 0;
4685         }
4686 }
4687
4688 void Mod_Mesh_Validate(dp_model_t *mod)
4689 {
4690         int i;
4691         qbool warned = false;
4692         for (i = 0; i < mod->num_surfaces; i++)
4693         {
4694                 msurface_t *surf = mod->data_surfaces + i;
4695                 int *e = mod->surfmesh.data_element3i + surf->num_firsttriangle * 3;
4696                 int first = surf->num_firstvertex;
4697                 int end = surf->num_firstvertex + surf->num_vertices;
4698                 int j;
4699                 for (j = 0;j < surf->num_triangles * 3;j++)
4700                 {
4701                         if (e[j] < first || e[j] >= end)
4702                         {
4703                                 if (!warned)
4704                                         Con_DPrintf("Mod_Mesh_Validate: detected corrupt surface - debug me!\n");
4705                                 warned = true;
4706                                 e[j] = first;
4707                         }
4708                 }
4709         }
4710 }
4711
4712 static void Mod_Mesh_UploadDynamicBuffers(dp_model_t *mod)
4713 {
4714         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;
4715         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;
4716         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;
4717         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;
4718         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;
4719         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;
4720         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;
4721         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;
4722         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;
4723         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;
4724         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;
4725 }
4726
4727 void Mod_Mesh_Finalize(dp_model_t *mod)
4728 {
4729         if (gl_paranoid.integer)
4730                 Mod_Mesh_Validate(mod);
4731         Mod_Mesh_ComputeBounds(mod);
4732         Mod_Mesh_MakeSortedSurfaces(mod);
4733         if(!r_refdef.draw2dstage)
4734                 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);
4735         Mod_Mesh_UploadDynamicBuffers(mod);
4736 }