model_shared.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // models.c -- model loading and caching
  21
  22 // models are the only shared resource between a client and server running
  23 // on the same machine.
  24
  25 #include "quakedef.h"
  26 #include "image.h"
  27 #include "r_shadow.h"
  28 #include "polygon.h"
  29
  30 cvar_t r_mipskins = {CF_CLIENT | CF_ARCHIVE, "r_mipskins", "0", "mipmaps model skins so they render faster in the distance and do not display noise artifacts, can cause discoloration of skins if they contain undesirable border colors"};
  31 cvar_t r_mipnormalmaps = {CF_CLIENT | CF_ARCHIVE, "r_mipnormalmaps", "1", "mipmaps normalmaps (turning it off looks sharper but may have aliasing)"};
  32 cvar_t mod_generatelightmaps_unitspersample = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_unitspersample", "8", "lightmap resolution"};
  33 cvar_t mod_generatelightmaps_borderpixels = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_borderpixels", "2", "extra space around polygons to prevent sampling artifacts"};
  34 cvar_t mod_generatelightmaps_texturesize = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_texturesize", "1024", "size of lightmap textures"};
  35 cvar_t mod_generatelightmaps_lightmapsamples = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_lightmapsamples", "16", "number of shadow tests done per lightmap pixel"};
  36 cvar_t mod_generatelightmaps_vertexsamples = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_vertexsamples", "16", "number of shadow tests done per vertex"};
  37 cvar_t mod_generatelightmaps_gridsamples = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_gridsamples", "64", "number of shadow tests done per lightgrid cell"};
  38 cvar_t mod_generatelightmaps_lightmapradius = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_lightmapradius", "16", "sampling area around each lightmap pixel"};
  39 cvar_t mod_generatelightmaps_vertexradius = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_vertexradius", "16", "sampling area around each vertex"};
  40 cvar_t mod_generatelightmaps_gridradius = {CF_CLIENT | CF_ARCHIVE, "mod_generatelightmaps_gridradius", "64", "sampling area around each lightgrid cell center"};
  41
  42 model_t *loadmodel;
  43
  44 // Supported model formats
  45 static modloader_t loader[] =
  46 {
  47         {"obj", NULL, 0, Mod_OBJ_Load},
  48         {NULL, "IDPO", 4, Mod_IDP0_Load},
  49         {NULL, "IDP2", 4, Mod_IDP2_Load},
  50         {NULL, "IDP3", 4, Mod_IDP3_Load},
  51         {NULL, "IDSP", 4, Mod_IDSP_Load},
  52         {NULL, "IDS2", 4, Mod_IDS2_Load},
  53         {NULL, "\035", 1, Mod_Q1BSP_Load},
  54         {NULL, "\036", 1, Mod_HLBSP_Load},
  55         {NULL, "BSP2", 4, Mod_BSP2_Load},
  56         {NULL, "2PSB", 4, Mod_2PSB_Load},
  57         {NULL, "IBSP", 4, Mod_IBSP_Load},
  58         {NULL, "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         model_t *mod;
  89
  90         SCR_PushLoadingScreen("Loading models", 1.0);
  91         count = 0;
  92         for (i = 0;i < nummodels;i++)
  93                 if ((mod = (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 = (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         model_t *mod;
 112
 113         for (i = 0;i < nummodels;i++)
 114                 if ((mod = (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         model_t *mod;
 127
 128         for (i = 0;i < nummodels;i++)
 129         {
 130                 if ((mod = (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 = (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(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(CF_CLIENT, "modellist", Mod_Print_f, "prints a list of loaded models");
 200         Cmd_AddCommand(CF_CLIENT, "modelprecache", Mod_Precache_f, "load a model");
 201         Cmd_AddCommand(CF_CLIENT, "modeldecompile", Mod_Decompile_f, "exports a model in several formats for editing purposes");
 202         Cmd_AddCommand(CF_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 (model_t *mod)
 211 {
 212         char name[MAX_QPATH];
 213         qbool used;
 214         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(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         model_t *mod = (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(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(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 model_t *Mod_LoadModel(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         model_t *mod;
 567         for (i = 0;i < nummodels;i++)
 568                 if ((mod = (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         model_t *mod;
 577         for (i = 0;i < nummodels;i++)
 578         {
 579                 if ((mod = (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 model_t *Mod_FindName(const char *name, const char *parentname)
 594 {
 595         int i;
 596         int nummodels;
 597         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 = (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 = (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 extern qbool vid_opened;
 630
 631 /*
 632 ==================
 633 Mod_ForName
 634
 635 Loads in a model for the given name
 636 ==================
 637 */
 638 model_t *Mod_ForName(const char *name, qbool crash, qbool checkdisk, const char *parentname)
 639 {
 640         model_t *model;
 641
 642         // FIXME: So we don't crash if a server is started early.
 643         if(!vid_opened)
 644                 CL_StartVideo();
 645
 646         model = Mod_FindName(name, parentname);
 647         if (!model->loaded || checkdisk)
 648                 Mod_LoadModel(model, crash, checkdisk);
 649         return model;
 650 }
 651
 652 /*
 653 ==================
 654 Mod_Reload
 655
 656 Reloads all models if they have changed
 657 ==================
 658 */
 659 void Mod_Reload(void)
 660 {
 661         int i, count;
 662         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 663         model_t *mod;
 664
 665         SCR_PushLoadingScreen("Reloading models", 1.0);
 666         count = 0;
 667         for (i = 0;i < nummodels;i++)
 668                 if ((mod = (model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 669                         ++count;
 670         for (i = 0;i < nummodels;i++)
 671                 if ((mod = (model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 672                 {
 673                         SCR_PushLoadingScreen(mod->name, 1.0 / count);
 674                         Mod_LoadModel(mod, true, true);
 675                         SCR_PopLoadingScreen(false);
 676                 }
 677         SCR_PopLoadingScreen(false);
 678 }
 679
 680 unsigned char *mod_base;
 681
 682
 683 //=============================================================================
 684
 685 /*
 686 ================
 687 Mod_Print
 688 ================
 689 */
 690 static void Mod_Print_f(cmd_state_t *cmd)
 691 {
 692         int i;
 693         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 694         model_t *mod;
 695
 696         Con_Print("Loaded models:\n");
 697         for (i = 0;i < nummodels;i++)
 698         {
 699                 if ((mod = (model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
 700                 {
 701                         if (mod->brush.numsubmodels)
 702                                 Con_Printf("%4iK %s (%i submodels)\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name, mod->brush.numsubmodels);
 703                         else
 704                                 Con_Printf("%4iK %s\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name);
 705                 }
 706         }
 707 }
 708
 709 /*
 710 ================
 711 Mod_Precache
 712 ================
 713 */
 714 static void Mod_Precache_f(cmd_state_t *cmd)
 715 {
 716         if (Cmd_Argc(cmd) == 2)
 717                 Mod_ForName(Cmd_Argv(cmd, 1), false, true, Cmd_Argv(cmd, 1)[0] == '*' ? cl.model_name[1] : NULL);
 718         else
 719                 Con_Print("usage: modelprecache <filename>\n");
 720 }
 721
 722 int Mod_BuildVertexRemapTableFromElements(int numelements, const int *elements, int numvertices, int *remapvertices)
 723 {
 724         int i, count;
 725         unsigned char *used;
 726         used = (unsigned char *)Mem_Alloc(tempmempool, numvertices);
 727         memset(used, 0, numvertices);
 728         for (i = 0;i < numelements;i++)
 729                 used[elements[i]] = 1;
 730         for (i = 0, count = 0;i < numvertices;i++)
 731                 remapvertices[i] = used[i] ? count++ : -1;
 732         Mem_Free(used);
 733         return count;
 734 }
 735
 736 qbool Mod_ValidateElements(int *element3i, unsigned short *element3s, int numtriangles, int firstvertex, int numvertices, const char *filename, int fileline)
 737 {
 738         int first = firstvertex, last = first + numvertices - 1, numelements = numtriangles * 3;
 739         int i;
 740         int invalidintcount = 0, invalidintexample = 0;
 741         int invalidshortcount = 0, invalidshortexample = 0;
 742         int invalidmismatchcount = 0, invalidmismatchexample = 0;
 743         if (element3i)
 744         {
 745                 for (i = 0; i < numelements; i++)
 746                 {
 747                         if (element3i[i] < first || element3i[i] > last)
 748                         {
 749                                 invalidintcount++;
 750                                 invalidintexample = i;
 751                         }
 752                 }
 753         }
 754         if (element3s)
 755         {
 756                 for (i = 0; i < numelements; i++)
 757                 {
 758                         if (element3s[i] < first || element3s[i] > last)
 759                         {
 760                                 invalidintcount++;
 761                                 invalidintexample = i;
 762                         }
 763                 }
 764         }
 765         if (element3i && element3s)
 766         {
 767                 for (i = 0; i < numelements; i++)
 768                 {
 769                         if (element3s[i] != element3i[i])
 770                         {
 771                                 invalidmismatchcount++;
 772                                 invalidmismatchexample = i;
 773                         }
 774                 }
 775         }
 776         if (invalidintcount || invalidshortcount || invalidmismatchcount)
 777         {
 778                 Con_Printf("Mod_ValidateElements(%i, %i, %i, %p, %p) called at %s:%d", numelements, first, last, (void *)element3i, (void *)element3s, filename, fileline);
 779                 Con_Printf(", %i elements are invalid in element3i (example: element3i[%i] == %i)", invalidintcount, invalidintexample, element3i ? element3i[invalidintexample] : 0);
 780                 Con_Printf(", %i elements are invalid in element3s (example: element3s[%i] == %i)", invalidshortcount, invalidshortexample, element3s ? element3s[invalidshortexample] : 0);
 781                 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);
 782                 Con_Print(".  Please debug the engine code - these elements have been modified to not crash, but nothing more.\n");
 783
 784                 // edit the elements to make them safer, as the driver will crash otherwise
 785                 if (element3i)
 786                         for (i = 0; i < numelements; i++)
 787                                 if (element3i[i] < first || element3i[i] > last)
 788                                         element3i[i] = first;
 789                 if (element3s)
 790                         for (i = 0; i < numelements; i++)
 791                                 if (element3s[i] < first || element3s[i] > last)
 792                                         element3s[i] = first;
 793                 if (element3i && element3s)
 794                         for (i = 0; i < numelements; i++)
 795                                 if (element3s[i] != element3i[i])
 796                                         element3s[i] = element3i[i];
 797
 798                 return false;
 799         }
 800         return true;
 801 }
 802
 803 // warning: this is an expensive function!
 804 void Mod_BuildNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const int *elements, float *normal3f, qbool areaweighting)
 805 {
 806         int i, j;
 807         const int *element;
 808         float *vectorNormal;
 809         float areaNormal[3];
 810         // clear the vectors
 811         memset(normal3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 812         // process each vertex of each triangle and accumulate the results
 813         // use area-averaging, to make triangles with a big area have a bigger
 814         // weighting on the vertex normal than triangles with a small area
 815         // to do so, just add the 'normals' together (the bigger the area
 816         // the greater the length of the normal is
 817         element = elements;
 818         for (i = 0; i < numtriangles; i++, element += 3)
 819         {
 820                 TriangleNormal(
 821                         vertex3f + element[0] * 3,
 822                         vertex3f + element[1] * 3,
 823                         vertex3f + element[2] * 3,
 824                         areaNormal
 825                         );
 826
 827                 if (!areaweighting)
 828                         VectorNormalize(areaNormal);
 829
 830                 for (j = 0;j < 3;j++)
 831                 {
 832                         vectorNormal = normal3f + element[j] * 3;
 833                         vectorNormal[0] += areaNormal[0];
 834                         vectorNormal[1] += areaNormal[1];
 835                         vectorNormal[2] += areaNormal[2];
 836                 }
 837         }
 838         // and just normalize the accumulated vertex normal in the end
 839         vectorNormal = normal3f + 3 * firstvertex;
 840         for (i = 0; i < numvertices; i++, vectorNormal += 3)
 841                 VectorNormalize(vectorNormal);
 842 }
 843
 844 #if 0
 845 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)
 846 {
 847         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 848         // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 849         // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 850
 851         // 6 multiply, 9 subtract
 852         VectorSubtract(v1, v0, v10);
 853         VectorSubtract(v2, v0, v20);
 854         normal3f[0] = v20[1] * v10[2] - v20[2] * v10[1];
 855         normal3f[1] = v20[2] * v10[0] - v20[0] * v10[2];
 856         normal3f[2] = v20[0] * v10[1] - v20[1] * v10[0];
 857         // 12 multiply, 10 subtract
 858         tc10[1] = tc1[1] - tc0[1];
 859         tc20[1] = tc2[1] - tc0[1];
 860         svector3f[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 861         svector3f[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 862         svector3f[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 863         tc10[0] = tc1[0] - tc0[0];
 864         tc20[0] = tc2[0] - tc0[0];
 865         tvector3f[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 866         tvector3f[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 867         tvector3f[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 868         // 12 multiply, 4 add, 6 subtract
 869         f = DotProduct(svector3f, normal3f);
 870         svector3f[0] -= f * normal3f[0];
 871         svector3f[1] -= f * normal3f[1];
 872         svector3f[2] -= f * normal3f[2];
 873         f = DotProduct(tvector3f, normal3f);
 874         tvector3f[0] -= f * normal3f[0];
 875         tvector3f[1] -= f * normal3f[1];
 876         tvector3f[2] -= f * normal3f[2];
 877         // if texture is mapped the wrong way (counterclockwise), the tangents
 878         // have to be flipped, this is detected by calculating a normal from the
 879         // two tangents, and seeing if it is opposite the surface normal
 880         // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 881         CrossProduct(tvector3f, svector3f, tangentcross);
 882         if (DotProduct(tangentcross, normal3f) < 0)
 883         {
 884                 VectorNegate(svector3f, svector3f);
 885                 VectorNegate(tvector3f, tvector3f);
 886         }
 887 }
 888 #endif
 889
 890 // warning: this is a very expensive function!
 891 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)
 892 {
 893         int i, tnum;
 894         float sdir[3], tdir[3], normal[3], *svec, *tvec;
 895         const float *v0, *v1, *v2, *tc0, *tc1, *tc2, *n;
 896         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 897         const int *e;
 898         // clear the vectors
 899         memset(svector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 900         memset(tvector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 901         // process each vertex of each triangle and accumulate the results
 902         for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
 903         {
 904                 v0 = vertex3f + e[0] * 3;
 905                 v1 = vertex3f + e[1] * 3;
 906                 v2 = vertex3f + e[2] * 3;
 907                 tc0 = texcoord2f + e[0] * 2;
 908                 tc1 = texcoord2f + e[1] * 2;
 909                 tc2 = texcoord2f + e[2] * 2;
 910
 911                 // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 912                 // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 913
 914                 // calculate the edge directions and surface normal
 915                 // 6 multiply, 9 subtract
 916                 VectorSubtract(v1, v0, v10);
 917                 VectorSubtract(v2, v0, v20);
 918                 normal[0] = v20[1] * v10[2] - v20[2] * v10[1];
 919                 normal[1] = v20[2] * v10[0] - v20[0] * v10[2];
 920                 normal[2] = v20[0] * v10[1] - v20[1] * v10[0];
 921
 922                 // calculate the tangents
 923                 // 12 multiply, 10 subtract
 924                 tc10[1] = tc1[1] - tc0[1];
 925                 tc20[1] = tc2[1] - tc0[1];
 926                 sdir[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 927                 sdir[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 928                 sdir[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 929                 tc10[0] = tc1[0] - tc0[0];
 930                 tc20[0] = tc2[0] - tc0[0];
 931                 tdir[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 932                 tdir[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 933                 tdir[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 934
 935                 // if texture is mapped the wrong way (counterclockwise), the tangents
 936                 // have to be flipped, this is detected by calculating a normal from the
 937                 // two tangents, and seeing if it is opposite the surface normal
 938                 // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 939                 CrossProduct(tdir, sdir, tangentcross);
 940                 if (DotProduct(tangentcross, normal) < 0)
 941                 {
 942                         VectorNegate(sdir, sdir);
 943                         VectorNegate(tdir, tdir);
 944                 }
 945
 946                 if (!areaweighting)
 947                 {
 948                         VectorNormalize(sdir);
 949                         VectorNormalize(tdir);
 950                 }
 951                 for (i = 0;i < 3;i++)
 952                 {
 953                         VectorAdd(svector3f + e[i]*3, sdir, svector3f + e[i]*3);
 954                         VectorAdd(tvector3f + e[i]*3, tdir, tvector3f + e[i]*3);
 955                 }
 956         }
 957         // make the tangents completely perpendicular to the surface normal, and
 958         // then normalize them
 959         // 16 assignments, 2 divide, 2 sqrt, 2 negates, 14 adds, 24 multiplies
 960         for (i = 0, svec = svector3f + 3 * firstvertex, tvec = tvector3f + 3 * firstvertex, n = normal3f + 3 * firstvertex;i < numvertices;i++, svec += 3, tvec += 3, n += 3)
 961         {
 962                 f = -DotProduct(svec, n);
 963                 VectorMA(svec, f, n, svec);
 964                 VectorNormalize(svec);
 965                 f = -DotProduct(tvec, n);
 966                 VectorMA(tvec, f, n, tvec);
 967                 VectorNormalize(tvec);
 968         }
 969 }
 970
 971 void Mod_AllocSurfMesh(mempool_t *mempool, int numvertices, int numtriangles, qbool lightmapoffsets, qbool vertexcolors)
 972 {
 973         unsigned char *data;
 974         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));
 975         loadmodel->surfmesh.num_vertices = numvertices;
 976         loadmodel->surfmesh.num_triangles = numtriangles;
 977         if (loadmodel->surfmesh.num_vertices)
 978         {
 979                 loadmodel->surfmesh.data_vertex3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 980                 loadmodel->surfmesh.data_svector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 981                 loadmodel->surfmesh.data_tvector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 982                 loadmodel->surfmesh.data_normal3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 983                 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 984                 loadmodel->surfmesh.data_texcoordlightmap2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 985                 if (vertexcolors)
 986                         loadmodel->surfmesh.data_lightmapcolor4f = (float *)data, data += sizeof(float[4]) * loadmodel->surfmesh.num_vertices;
 987                 if (lightmapoffsets)
 988                         loadmodel->surfmesh.data_lightmapoffsets = (int *)data, data += sizeof(int) * loadmodel->surfmesh.num_vertices;
 989         }
 990         if (loadmodel->surfmesh.num_triangles)
 991         {
 992                 loadmodel->surfmesh.data_element3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
 993                 if (loadmodel->surfmesh.num_vertices <= 65536)
 994                         loadmodel->surfmesh.data_element3s = (unsigned short *)data, data += sizeof(unsigned short[3]) * loadmodel->surfmesh.num_triangles;
 995         }
 996 }
 997
 998 shadowmesh_t *Mod_ShadowMesh_Alloc(mempool_t *mempool, int maxverts, int maxtriangles)
 999 {
1000         shadowmesh_t *newmesh;
1001         newmesh = (shadowmesh_t *)Mem_Alloc(mempool, sizeof(shadowmesh_t));
1002         newmesh->mempool = mempool;
1003         newmesh->maxverts = maxverts;
1004         newmesh->maxtriangles = maxtriangles;
1005         newmesh->numverts = 0;
1006         newmesh->numtriangles = 0;
1007         memset(newmesh->sideoffsets, 0, sizeof(newmesh->sideoffsets));
1008         memset(newmesh->sidetotals, 0, sizeof(newmesh->sidetotals));
1009
1010         newmesh->vertex3f = (float *)Mem_Alloc(mempool, maxverts * sizeof(float[3]));
1011         newmesh->element3i = (int *)Mem_Alloc(mempool, maxtriangles * sizeof(int[3]));
1012         newmesh->vertexhashtable = (shadowmeshvertexhash_t **)Mem_Alloc(mempool, SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *));
1013         newmesh->vertexhashentries = (shadowmeshvertexhash_t *)Mem_Alloc(mempool, maxverts * sizeof(shadowmeshvertexhash_t));
1014         return newmesh;
1015 }
1016
1017 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, const float *vertex3f)
1018 {
1019         int hashindex, vnum;
1020         shadowmeshvertexhash_t *hash;
1021         // this uses prime numbers intentionally
1022         hashindex = (unsigned int) (vertex3f[0] * 2003 + vertex3f[1] * 4001 + vertex3f[2] * 7919) % SHADOWMESHVERTEXHASH;
1023         for (hash = mesh->vertexhashtable[hashindex];hash;hash = hash->next)
1024         {
1025                 vnum = (hash - mesh->vertexhashentries);
1026                 if (mesh->vertex3f[vnum * 3 + 0] == vertex3f[0] && mesh->vertex3f[vnum * 3 + 1] == vertex3f[1] && mesh->vertex3f[vnum * 3 + 2] == vertex3f[2])
1027                         return hash - mesh->vertexhashentries;
1028         }
1029         vnum = mesh->numverts++;
1030         hash = mesh->vertexhashentries + vnum;
1031         hash->next = mesh->vertexhashtable[hashindex];
1032         mesh->vertexhashtable[hashindex] = hash;
1033         mesh->vertex3f[vnum * 3 + 0] = vertex3f[0];
1034         mesh->vertex3f[vnum * 3 + 1] = vertex3f[1];
1035         mesh->vertex3f[vnum * 3 + 2] = vertex3f[2];
1036         return vnum;
1037 }
1038
1039 void Mod_ShadowMesh_AddMesh(shadowmesh_t *mesh, const float *vertex3f, int numtris, const int *element3i)
1040 {
1041         int i;
1042
1043         for (i = 0;i < numtris;i++)
1044         {
1045                 mesh->element3i[mesh->numtriangles * 3 + 0] = Mod_ShadowMesh_AddVertex(mesh, vertex3f + 3 * element3i[i * 3 + 0]);
1046                 mesh->element3i[mesh->numtriangles * 3 + 1] = Mod_ShadowMesh_AddVertex(mesh, vertex3f + 3 * element3i[i * 3 + 1]);
1047                 mesh->element3i[mesh->numtriangles * 3 + 2] = Mod_ShadowMesh_AddVertex(mesh, vertex3f + 3 * element3i[i * 3 + 2]);
1048                 mesh->numtriangles++;
1049         }
1050
1051         // the triangle calculation can take a while, so let's do a keepalive here
1052         CL_KeepaliveMessage(false);
1053 }
1054
1055 shadowmesh_t *Mod_ShadowMesh_Begin(mempool_t *mempool, int maxverts, int maxtriangles)
1056 {
1057         // the preparation before shadow mesh initialization can take a while, so let's do a keepalive here
1058         CL_KeepaliveMessage(false);
1059
1060         return Mod_ShadowMesh_Alloc(mempool, maxverts, maxtriangles);
1061 }
1062
1063 static void Mod_ShadowMesh_CreateVBOs(shadowmesh_t *mesh)
1064 {
1065         if (!mesh->numverts)
1066                 return;
1067
1068         // make sure we don't crash inside the driver if something went wrong, as it's annoying to debug
1069         Mod_ValidateElements(mesh->element3i, mesh->element3s, mesh->numtriangles, 0, mesh->numverts, __FILE__, __LINE__);
1070
1071         // upload short indices as a buffer
1072         if (mesh->element3s && !mesh->element3s_indexbuffer)
1073                 mesh->element3s_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3s, mesh->numtriangles * sizeof(short[3]), "shadowmesh", true, false, false, true);
1074
1075         // upload int indices as a buffer
1076         if (mesh->element3i && !mesh->element3i_indexbuffer && !mesh->element3s)
1077                 mesh->element3i_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3i, mesh->numtriangles * sizeof(int[3]), "shadowmesh", true, false, false, false);
1078
1079         // vertex buffer is several arrays and we put them in the same buffer
1080         //
1081         // is this wise?  the texcoordtexture2f array is used with dynamic
1082         // vertex/svector/tvector/normal when rendering animated models, on the
1083         // other hand animated models don't use a lot of vertices anyway...
1084         if (!mesh->vbo_vertexbuffer)
1085         {
1086                 mesh->vbooffset_vertex3f = 0;
1087                 mesh->vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mesh->vertex3f, mesh->numverts * sizeof(float[3]), "shadowmesh", false, false, false, false);
1088         }
1089 }
1090
1091 shadowmesh_t *Mod_ShadowMesh_Finish(shadowmesh_t *mesh, qbool createvbo)
1092 {
1093         if (mesh->numverts >= 3 && mesh->numtriangles >= 1)
1094         {
1095                 if (mesh->vertexhashentries)
1096                         Mem_Free(mesh->vertexhashentries);
1097                 mesh->vertexhashentries = NULL;
1098                 if (mesh->vertexhashtable)
1099                         Mem_Free(mesh->vertexhashtable);
1100                 mesh->vertexhashtable = NULL;
1101                 if (mesh->maxverts > mesh->numverts)
1102                 {
1103                         mesh->vertex3f = (float *)Mem_Realloc(mesh->mempool, mesh->vertex3f, mesh->numverts * sizeof(float[3]));
1104                         mesh->maxverts = mesh->numverts;
1105                 }
1106                 if (mesh->maxtriangles > mesh->numtriangles)
1107                 {
1108                         mesh->element3i = (int *)Mem_Realloc(mesh->mempool, mesh->element3i, mesh->numtriangles * sizeof(int[3]));
1109                         mesh->maxtriangles = mesh->numtriangles;
1110                 }
1111                 if (mesh->numverts <= 65536)
1112                 {
1113                         int i;
1114                         mesh->element3s = (unsigned short *)Mem_Alloc(mesh->mempool, mesh->numtriangles * sizeof(unsigned short[3]));
1115                         for (i = 0;i < mesh->numtriangles*3;i++)
1116                                 mesh->element3s[i] = mesh->element3i[i];
1117                 }
1118                 if (createvbo)
1119                         Mod_ShadowMesh_CreateVBOs(mesh);
1120         }
1121
1122         // this can take a while, so let's do a keepalive here
1123         CL_KeepaliveMessage(false);
1124
1125         return mesh;
1126 }
1127
1128 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *mesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius)
1129 {
1130         int i;
1131         vec3_t nmins, nmaxs, ncenter, temp;
1132         float nradius2, dist2, *v;
1133         VectorClear(nmins);
1134         VectorClear(nmaxs);
1135         // calculate bbox
1136         VectorCopy(mesh->vertex3f, nmins);
1137         VectorCopy(mesh->vertex3f, nmaxs);
1138         for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1139         {
1140                 if (nmins[0] > v[0]) { nmins[0] = v[0]; } if (nmaxs[0] < v[0]) { nmaxs[0] = v[0]; }
1141                 if (nmins[1] > v[1]) { nmins[1] = v[1]; } if (nmaxs[1] < v[1]) { nmaxs[1] = v[1]; }
1142                 if (nmins[2] > v[2]) { nmins[2] = v[2]; } if (nmaxs[2] < v[2]) { nmaxs[2] = v[2]; }
1143         }
1144         // calculate center and radius
1145         ncenter[0] = (nmins[0] + nmaxs[0]) * 0.5f;
1146         ncenter[1] = (nmins[1] + nmaxs[1]) * 0.5f;
1147         ncenter[2] = (nmins[2] + nmaxs[2]) * 0.5f;
1148         nradius2 = 0;
1149         for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1150         {
1151                 VectorSubtract(v, ncenter, temp);
1152                 dist2 = DotProduct(temp, temp);
1153                 if (nradius2 < dist2)
1154                         nradius2 = dist2;
1155         }
1156         // return data
1157         if (mins)
1158                 VectorCopy(nmins, mins);
1159         if (maxs)
1160                 VectorCopy(nmaxs, maxs);
1161         if (center)
1162                 VectorCopy(ncenter, center);
1163         if (radius)
1164                 *radius = sqrt(nradius2);
1165 }
1166
1167 void Mod_ShadowMesh_Free(shadowmesh_t *mesh)
1168 {
1169         if (mesh->element3i_indexbuffer)
1170                 R_Mesh_DestroyMeshBuffer(mesh->element3i_indexbuffer);
1171         if (mesh->element3s_indexbuffer)
1172                 R_Mesh_DestroyMeshBuffer(mesh->element3s_indexbuffer);
1173         if (mesh->vbo_vertexbuffer)
1174                 R_Mesh_DestroyMeshBuffer(mesh->vbo_vertexbuffer);
1175         if (mesh->vertex3f)
1176                 Mem_Free(mesh->vertex3f);
1177         if (mesh->element3i)
1178                 Mem_Free(mesh->element3i);
1179         if (mesh->element3s)
1180                 Mem_Free(mesh->element3s);
1181         if (mesh->vertexhashentries)
1182                 Mem_Free(mesh->vertexhashentries);
1183         if (mesh->vertexhashtable)
1184                 Mem_Free(mesh->vertexhashtable);
1185         Mem_Free(mesh);
1186 }
1187
1188 void Mod_CreateCollisionMesh(model_t *mod)
1189 {
1190         int k, numcollisionmeshtriangles;
1191         qbool usesinglecollisionmesh = false;
1192         const msurface_t *surface = NULL;
1193
1194         mempool_t *mempool = mod->mempool;
1195         if (!mempool && mod->brush.parentmodel)
1196                 mempool = mod->brush.parentmodel->mempool;
1197         // make a single combined collision mesh for physics engine use
1198         // TODO rewrite this to use the collision brushes as source, to fix issues with e.g. common/caulk which creates no drawsurface
1199         numcollisionmeshtriangles = 0;
1200         for (k = mod->submodelsurfaces_start;k < mod->submodelsurfaces_end;k++)
1201         {
1202                 surface = mod->data_surfaces + k;
1203                 if (!strcmp(surface->texture->name, "collision") || !strcmp(surface->texture->name, "collisionconvex")) // found collision mesh
1204                 {
1205                         usesinglecollisionmesh = true;
1206                         numcollisionmeshtriangles = surface->num_triangles;
1207                         break;
1208                 }
1209                 if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1210                         continue;
1211                 numcollisionmeshtriangles += surface->num_triangles;
1212         }
1213         mod->brush.collisionmesh = Mod_ShadowMesh_Begin(mempool, numcollisionmeshtriangles * 3, numcollisionmeshtriangles);
1214         if (usesinglecollisionmesh)
1215                 Mod_ShadowMesh_AddMesh(mod->brush.collisionmesh, mod->surfmesh.data_vertex3f, surface->num_triangles, (mod->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
1216         else
1217         {
1218                 for (k = mod->submodelsurfaces_start; k < mod->submodelsurfaces_end; k++)
1219                 {
1220                         surface = mod->data_surfaces + k;
1221                         if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1222                                 continue;
1223                         Mod_ShadowMesh_AddMesh(mod->brush.collisionmesh, mod->surfmesh.data_vertex3f, surface->num_triangles, (mod->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
1224                 }
1225         }
1226         mod->brush.collisionmesh = Mod_ShadowMesh_Finish(mod->brush.collisionmesh, false);
1227 }
1228
1229 #if 0
1230 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)
1231 {
1232         float v[3], tc[3];
1233         v[0] = ix;
1234         v[1] = iy;
1235         if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
1236                 v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
1237         else
1238                 v[2] = 0;
1239         Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
1240         Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
1241         texcoord2f[0] = tc[0];
1242         texcoord2f[1] = tc[1];
1243 }
1244
1245 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)
1246 {
1247         float vup[3], vdown[3], vleft[3], vright[3];
1248         float tcup[3], tcdown[3], tcleft[3], tcright[3];
1249         float sv[3], tv[3], nl[3];
1250         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
1251         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
1252         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
1253         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
1254         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
1255         Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
1256         Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
1257         VectorAdd(svector3f, sv, svector3f);
1258         VectorAdd(tvector3f, tv, tvector3f);
1259         VectorAdd(normal3f, nl, normal3f);
1260         Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
1261         VectorAdd(svector3f, sv, svector3f);
1262         VectorAdd(tvector3f, tv, tvector3f);
1263         VectorAdd(normal3f, nl, normal3f);
1264         Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
1265         VectorAdd(svector3f, sv, svector3f);
1266         VectorAdd(tvector3f, tv, tvector3f);
1267         VectorAdd(normal3f, nl, normal3f);
1268 }
1269
1270 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)
1271 {
1272         int x, y, ix, iy, *e;
1273         e = element3i;
1274         for (y = 0;y < height;y++)
1275         {
1276                 for (x = 0;x < width;x++)
1277                 {
1278                         e[0] = (y + 1) * (width + 1) + (x + 0);
1279                         e[1] = (y + 0) * (width + 1) + (x + 0);
1280                         e[2] = (y + 1) * (width + 1) + (x + 1);
1281                         e[3] = (y + 0) * (width + 1) + (x + 0);
1282                         e[4] = (y + 0) * (width + 1) + (x + 1);
1283                         e[5] = (y + 1) * (width + 1) + (x + 1);
1284                         e += 6;
1285                 }
1286         }
1287         for (y = 0, iy = y1;y < height + 1;y++, iy++)
1288                 for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
1289                         Mod_GetTerrainVertexFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
1290 }
1291 #endif
1292
1293 #if 0
1294 void Mod_Terrain_SurfaceRecurseChunk(model_t *model, int stepsize, int x, int y)
1295 {
1296         float mins[3];
1297         float maxs[3];
1298         float chunkwidth = min(stepsize, model->terrain.width - 1 - x);
1299         float chunkheight = min(stepsize, model->terrain.height - 1 - y);
1300         float viewvector[3];
1301         unsigned int firstvertex;
1302         unsigned int *e;
1303         float *v;
1304         if (chunkwidth < 2 || chunkheight < 2)
1305                 return;
1306         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]);
1307         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]);
1308         viewvector[0] = bound(mins[0], localvieworigin, maxs[0]) - model->terrain.vieworigin[0];
1309         viewvector[1] = bound(mins[1], localvieworigin, maxs[1]) - model->terrain.vieworigin[1];
1310         viewvector[2] = bound(mins[2], localvieworigin, maxs[2]) - model->terrain.vieworigin[2];
1311         if (stepsize > 1 && VectorLength(viewvector) < stepsize*model->terrain.scale[0]*r_terrain_lodscale.value)
1312         {
1313                 // too close for this stepsize, emit as 4 chunks instead
1314                 stepsize /= 2;
1315                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y);
1316                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y);
1317                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y+stepsize);
1318                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y+stepsize);
1319                 return;
1320         }
1321         // emit the geometry at stepsize into our vertex buffer / index buffer
1322         // we add two columns and two rows for skirt
1323         outwidth = chunkwidth+2;
1324         outheight = chunkheight+2;
1325         outwidth2 = outwidth-1;
1326         outheight2 = outheight-1;
1327         outwidth3 = outwidth+1;
1328         outheight3 = outheight+1;
1329         firstvertex = numvertices;
1330         e = model->terrain.element3i + numtriangles;
1331         numtriangles += chunkwidth*chunkheight*2+chunkwidth*2*2+chunkheight*2*2;
1332         v = model->terrain.vertex3f + numvertices;
1333         numvertices += (chunkwidth+1)*(chunkheight+1)+(chunkwidth+1)*2+(chunkheight+1)*2;
1334         // emit the triangles (note: the skirt is treated as two extra rows and two extra columns)
1335         for (ty = 0;ty < outheight;ty++)
1336         {
1337                 for (tx = 0;tx < outwidth;tx++)
1338                 {
1339                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1340                         *e++ = firstvertex + (ty  )*outwidth3+(tx+1);
1341                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1342                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1343                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1344                         *e++ = firstvertex + (ty+1)*outwidth3+(tx  );
1345                 }
1346         }
1347         // TODO: emit surface vertices (x+tx*stepsize, y+ty*stepsize)
1348         for (ty = 0;ty <= outheight;ty++)
1349         {
1350                 skirtrow = ty == 0 || ty == outheight;
1351                 ry = y+bound(1, ty, outheight)*stepsize;
1352                 for (tx = 0;tx <= outwidth;tx++)
1353                 {
1354                         skirt = skirtrow || tx == 0 || tx == outwidth;
1355                         rx = x+bound(1, tx, outwidth)*stepsize;
1356                         v[0] = rx*scale[0];
1357                         v[1] = ry*scale[1];
1358                         v[2] = heightmap[ry*terrainwidth+rx]*scale[2];
1359                         v += 3;
1360                 }
1361         }
1362         // TODO: emit skirt vertices
1363 }
1364
1365 void Mod_Terrain_UpdateSurfacesForViewOrigin(model_t *model)
1366 {
1367         for (y = 0;y < model->terrain.size[1];y += model->terrain.
1368         Mod_Terrain_SurfaceRecurseChunk(model, model->terrain.maxstepsize, x, y);
1369         Mod_Terrain_BuildChunk(model,
1370 }
1371 #endif
1372
1373 static int Mod_LoadQ3Shaders_EnumerateWaveFunc(const char *s)
1374 {
1375         int offset = 0;
1376         if (!strncasecmp(s, "user", 4)) // parse stuff like "user1sin", always user<n>func
1377         {
1378                 offset = bound(0, s[4] - '0', 9);
1379                 offset = (offset + 1) << Q3WAVEFUNC_USER_SHIFT;
1380                 s += 4;
1381                 if(*s)
1382                         ++s;
1383         }
1384         if (!strcasecmp(s, "sin"))             return offset | Q3WAVEFUNC_SIN;
1385         if (!strcasecmp(s, "square"))          return offset | Q3WAVEFUNC_SQUARE;
1386         if (!strcasecmp(s, "triangle"))        return offset | Q3WAVEFUNC_TRIANGLE;
1387         if (!strcasecmp(s, "sawtooth"))        return offset | Q3WAVEFUNC_SAWTOOTH;
1388         if (!strcasecmp(s, "inversesawtooth")) return offset | Q3WAVEFUNC_INVERSESAWTOOTH;
1389         if (!strcasecmp(s, "noise"))           return offset | Q3WAVEFUNC_NOISE;
1390         if (!strcasecmp(s, "none"))            return offset | Q3WAVEFUNC_NONE;
1391         Con_DPrintf("Mod_LoadQ3Shaders: unknown wavefunc %s\n", s);
1392         return offset | Q3WAVEFUNC_NONE;
1393 }
1394
1395 void Mod_FreeQ3Shaders(void)
1396 {
1397         Mem_FreePool(&q3shaders_mem);
1398 }
1399
1400 static void Q3Shader_AddToHash (shader_t* shader)
1401 {
1402         unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)shader->name, strlen (shader->name));
1403         q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1404         q3shader_hash_entry_t* lastEntry = NULL;
1405         do
1406         {
1407                 if (strcasecmp (entry->shader.name, shader->name) == 0)
1408                 {
1409                         // redeclaration
1410                         if(shader->dpshaderkill)
1411                         {
1412                                 // killed shader is a redeclarion? we can safely ignore it
1413                                 return;
1414                         }
1415                         else if(entry->shader.dpshaderkill)
1416                         {
1417                                 // replace the old shader!
1418                                 // this will skip the entry allocating part
1419                                 // below and just replace the shader
1420                                 break;
1421                         }
1422                         else
1423                         {
1424                                 unsigned char *start, *end, *start2;
1425                                 start = (unsigned char *) (&shader->Q3SHADERINFO_COMPARE_START);
1426                                 end = ((unsigned char *) (&shader->Q3SHADERINFO_COMPARE_END)) + sizeof(shader->Q3SHADERINFO_COMPARE_END);
1427                                 start2 = (unsigned char *) (&entry->shader.Q3SHADERINFO_COMPARE_START);
1428                                 if(memcmp(start, start2, end - start))
1429                                         Con_DPrintf("Shader '%s' already defined, ignoring mismatching redeclaration\n", shader->name);
1430                                 else
1431                                         Con_DPrintf("Shader '%s' already defined\n", shader->name);
1432                                 return;
1433                         }
1434                 }
1435                 lastEntry = entry;
1436                 entry = entry->chain;
1437         }
1438         while (entry != NULL);
1439         if (entry == NULL)
1440         {
1441                 if (lastEntry->shader.name[0] != 0)
1442                 {
1443                         /* Add to chain */
1444                         q3shader_hash_entry_t* newEntry = (q3shader_hash_entry_t*)
1445                           Mem_ExpandableArray_AllocRecord (&q3shader_data->hash_entries);
1446
1447                         while (lastEntry->chain != NULL) lastEntry = lastEntry->chain;
1448                         lastEntry->chain = newEntry;
1449                         newEntry->chain = NULL;
1450                         lastEntry = newEntry;
1451                 }
1452                 /* else: head of chain, in hash entry array */
1453                 entry = lastEntry;
1454         }
1455         memcpy (&entry->shader, shader, sizeof (shader_t));
1456 }
1457
1458 void Mod_LoadQ3Shaders(void)
1459 {
1460         int j;
1461         int fileindex;
1462         fssearch_t *search;
1463         char *f;
1464         const char *text;
1465         shader_t shader;
1466         q3shaderinfo_layer_t *layer;
1467         int numparameters;
1468         char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
1469         char *custsurfaceparmnames[256]; // VorteX: q3map2 has 64 but well, someone will need more
1470         unsigned long custsurfaceflags[256];
1471         int numcustsurfaceflags;
1472         qbool dpshaderkill;
1473
1474         Mod_FreeQ3Shaders();
1475
1476         q3shaders_mem = Mem_AllocPool("q3shaders", 0, NULL);
1477         q3shader_data = (q3shader_data_t*)Mem_Alloc (q3shaders_mem,
1478                 sizeof (q3shader_data_t));
1479         Mem_ExpandableArray_NewArray (&q3shader_data->hash_entries,
1480                 q3shaders_mem, sizeof (q3shader_hash_entry_t), 256);
1481         Mem_ExpandableArray_NewArray (&q3shader_data->char_ptrs,
1482                 q3shaders_mem, sizeof (char**), 256);
1483
1484         // parse custinfoparms.txt
1485         numcustsurfaceflags = 0;
1486         if ((text = f = (char *)FS_LoadFile("scripts/custinfoparms.txt", tempmempool, false, NULL)) != NULL)
1487         {
1488                 if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1489                         Con_DPrintf("scripts/custinfoparms.txt: contentflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1490                 else
1491                 {
1492                         while (COM_ParseToken_QuakeC(&text, false))
1493                                 if (!strcasecmp(com_token, "}"))
1494                                         break;
1495                         // custom surfaceflags section
1496                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1497                                 Con_DPrintf("scripts/custinfoparms.txt: surfaceflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1498                         else
1499                         {
1500                                 while(COM_ParseToken_QuakeC(&text, false))
1501                                 {
1502                                         if (!strcasecmp(com_token, "}"))
1503                                                 break;
1504                                         // register surfaceflag
1505                                         if (numcustsurfaceflags >= 256)
1506                                         {
1507                                                 Con_Printf("scripts/custinfoparms.txt: surfaceflags section parsing error - max 256 surfaceflags exceeded\n");
1508                                                 break;
1509                                         }
1510                                         // name
1511                                         j = (int)strlen(com_token)+1;
1512                                         custsurfaceparmnames[numcustsurfaceflags] = (char *)Mem_Alloc(tempmempool, j);
1513                                         strlcpy(custsurfaceparmnames[numcustsurfaceflags], com_token, j+1);
1514                                         // value
1515                                         if (COM_ParseToken_QuakeC(&text, false))
1516                                                 custsurfaceflags[numcustsurfaceflags] = strtol(com_token, NULL, 0);
1517                                         else
1518                                                 custsurfaceflags[numcustsurfaceflags] = 0;
1519                                         numcustsurfaceflags++;
1520                                 }
1521                         }
1522                 }
1523                 Mem_Free(f);
1524         }
1525
1526         // parse shaders
1527         search = FS_Search("scripts/*.shader", true, false, NULL);
1528         if (!search)
1529                 return;
1530         for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
1531         {
1532                 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
1533                 if (!f)
1534                         continue;
1535                 while (COM_ParseToken_QuakeC(&text, false))
1536                 {
1537                         memset (&shader, 0, sizeof(shader));
1538                         shader.name[0] = 0;
1539                         shader.surfaceparms = 0;
1540                         shader.surfaceflags = 0;
1541                         shader.textureflags = 0;
1542                         shader.numlayers = 0;
1543                         shader.lighting = false;
1544                         shader.vertexalpha = false;
1545                         shader.textureblendalpha = false;
1546                         shader.skyboxname[0] = 0;
1547                         shader.deforms[0].deform = Q3DEFORM_NONE;
1548                         shader.dpnortlight = false;
1549                         shader.dpshadow = false;
1550                         shader.dpnoshadow = false;
1551                         shader.dpmeshcollisions = false;
1552                         shader.dpshaderkill = false;
1553                         shader.dpreflectcube[0] = 0;
1554                         shader.reflectmin = 0;
1555                         shader.reflectmax = 1;
1556                         shader.refractfactor = 1;
1557                         Vector4Set(shader.refractcolor4f, 1, 1, 1, 1);
1558                         shader.reflectfactor = 1;
1559                         Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
1560                         shader.r_water_wateralpha = 1;
1561                         shader.r_water_waterscroll[0] = 0;
1562                         shader.r_water_waterscroll[1] = 0;
1563                         shader.offsetmapping = (mod_q3shader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
1564                         shader.offsetscale = mod_q3shader_default_offsetmapping_scale.value;
1565                         shader.offsetbias = mod_q3shader_default_offsetmapping_bias.value;
1566                         shader.biaspolygonoffset = mod_q3shader_default_polygonoffset.value;
1567                         shader.biaspolygonfactor = mod_q3shader_default_polygonfactor.value;
1568                         shader.transparentsort = TRANSPARENTSORT_DISTANCE;
1569                         shader.specularscalemod = 1;
1570                         shader.specularpowermod = 1;
1571                         shader.rtlightambient = 0;
1572                         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
1573                         // JUST GREP FOR "specularscalemod = 1".
1574
1575                         strlcpy(shader.name, com_token, sizeof(shader.name));
1576                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1577                         {
1578                                 Con_DPrintf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
1579                                 break;
1580                         }
1581                         while (COM_ParseToken_QuakeC(&text, false))
1582                         {
1583                                 if (!strcasecmp(com_token, "}"))
1584                                         break;
1585                                 if (!strcasecmp(com_token, "{"))
1586                                 {
1587                                         static q3shaderinfo_layer_t dummy;
1588                                         if (shader.numlayers < Q3SHADER_MAXLAYERS)
1589                                         {
1590                                                 layer = shader.layers + shader.numlayers++;
1591                                         }
1592                                         else
1593                                         {
1594                                                 // parse and process it anyway, just don't store it (so a map $lightmap or such stuff still is found)
1595                                                 memset(&dummy, 0, sizeof(dummy));
1596                                                 layer = &dummy;
1597                                         }
1598                                         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1599                                         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1600                                         layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1601                                         layer->blendfunc[0] = GL_ONE;
1602                                         layer->blendfunc[1] = GL_ZERO;
1603                                         while (COM_ParseToken_QuakeC(&text, false))
1604                                         {
1605                                                 if (!strcasecmp(com_token, "}"))
1606                                                         break;
1607                                                 if (!strcasecmp(com_token, "\n"))
1608                                                         continue;
1609                                                 numparameters = 0;
1610                                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1611                                                 {
1612                                                         if (j < TEXTURE_MAXFRAMES + 4)
1613                                                         {
1614                                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1615                                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1616                                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1617                                                                 else
1618                                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1619                                                                 numparameters = j + 1;
1620                                                         }
1621                                                         if (!COM_ParseToken_QuakeC(&text, true))
1622                                                                 break;
1623                                                 }
1624                                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1625                                                 //      parameter[j][0] = 0;
1626                                                 if (developer_insane.integer)
1627                                                 {
1628                                                         Con_DPrintf("%s %i: ", shader.name, shader.numlayers - 1);
1629                                                         for (j = 0;j < numparameters;j++)
1630                                                                 Con_DPrintf(" %s", parameter[j]);
1631                                                         Con_DPrint("\n");
1632                                                 }
1633                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
1634                                                 {
1635                                                         if (numparameters == 2)
1636                                                         {
1637                                                                 if (!strcasecmp(parameter[1], "add"))
1638                                                                 {
1639                                                                         layer->blendfunc[0] = GL_ONE;
1640                                                                         layer->blendfunc[1] = GL_ONE;
1641                                                                 }
1642                                                                 else if (!strcasecmp(parameter[1], "addalpha"))
1643                                                                 {
1644                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1645                                                                         layer->blendfunc[1] = GL_ONE;
1646                                                                 }
1647                                                                 else if (!strcasecmp(parameter[1], "filter"))
1648                                                                 {
1649                                                                         layer->blendfunc[0] = GL_DST_COLOR;
1650                                                                         layer->blendfunc[1] = GL_ZERO;
1651                                                                 }
1652                                                                 else if (!strcasecmp(parameter[1], "blend"))
1653                                                                 {
1654                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1655                                                                         layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
1656                                                                 }
1657                                                         }
1658                                                         else if (numparameters == 3)
1659                                                         {
1660                                                                 int k;
1661                                                                 for (k = 0;k < 2;k++)
1662                                                                 {
1663                                                                         if (!strcasecmp(parameter[k+1], "GL_ONE"))
1664                                                                                 layer->blendfunc[k] = GL_ONE;
1665                                                                         else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
1666                                                                                 layer->blendfunc[k] = GL_ZERO;
1667                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
1668                                                                                 layer->blendfunc[k] = GL_SRC_COLOR;
1669                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
1670                                                                                 layer->blendfunc[k] = GL_SRC_ALPHA;
1671                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
1672                                                                                 layer->blendfunc[k] = GL_DST_COLOR;
1673                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
1674                                                                                 layer->blendfunc[k] = GL_DST_ALPHA;
1675                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
1676                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
1677                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
1678                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
1679                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
1680                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
1681                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
1682                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1683                                                                         else
1684                                                                                 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
1685                                                                 }
1686                                                         }
1687                                                 }
1688                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
1689                                                         layer->alphatest = true;
1690                                                 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
1691                                                 {
1692                                                         if (!strcasecmp(parameter[0], "clampmap"))
1693                                                                 layer->clampmap = true;
1694                                                         layer->numframes = 1;
1695                                                         layer->framerate = 1;
1696                                                         layer->texturename = (char**)Mem_ExpandableArray_AllocRecord (
1697                                                                 &q3shader_data->char_ptrs);
1698                                                         layer->texturename[0] = Mem_strdup (q3shaders_mem, parameter[1]);
1699                                                         if (!strcasecmp(parameter[1], "$lightmap"))
1700                                                                 shader.lighting = true;
1701                                                 }
1702                                                 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
1703                                                 {
1704                                                         int i;
1705                                                         layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
1706                                                         layer->framerate = atof(parameter[1]);
1707                                                         layer->texturename = (char **) Mem_Alloc (q3shaders_mem, sizeof (char*) * layer->numframes);
1708                                                         for (i = 0;i < layer->numframes;i++)
1709                                                                 layer->texturename[i] = Mem_strdup (q3shaders_mem, parameter[i + 2]);
1710                                                 }
1711                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen"))
1712                                                 {
1713                                                         int i;
1714                                                         for (i = 0;i < numparameters - 2 && i < Q3RGBGEN_MAXPARMS;i++)
1715                                                                 layer->rgbgen.parms[i] = atof(parameter[i+2]);
1716                                                              if (!strcasecmp(parameter[1], "identity"))         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1717                                                         else if (!strcasecmp(parameter[1], "const"))            layer->rgbgen.rgbgen = Q3RGBGEN_CONST;
1718                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->rgbgen.rgbgen = Q3RGBGEN_ENTITY;
1719                                                         else if (!strcasecmp(parameter[1], "exactvertex"))      layer->rgbgen.rgbgen = Q3RGBGEN_EXACTVERTEX;
1720                                                         else if (!strcasecmp(parameter[1], "identitylighting")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITYLIGHTING;
1721                                                         else if (!strcasecmp(parameter[1], "lightingdiffuse"))  layer->rgbgen.rgbgen = Q3RGBGEN_LIGHTINGDIFFUSE;
1722                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSENTITY;
1723                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSVERTEX;
1724                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->rgbgen.rgbgen = Q3RGBGEN_VERTEX;
1725                                                         else if (!strcasecmp(parameter[1], "wave"))
1726                                                         {
1727                                                                 layer->rgbgen.rgbgen = Q3RGBGEN_WAVE;
1728                                                                 layer->rgbgen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1729                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1730                                                                         layer->rgbgen.waveparms[i] = atof(parameter[i+3]);
1731                                                         }
1732                                                         else Con_DPrintf("%s parsing warning: unknown rgbgen %s\n", search->filenames[fileindex], parameter[1]);
1733                                                 }
1734                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen"))
1735                                                 {
1736                                                         int i;
1737                                                         for (i = 0;i < numparameters - 2 && i < Q3ALPHAGEN_MAXPARMS;i++)
1738                                                                 layer->alphagen.parms[i] = atof(parameter[i+2]);
1739                                                              if (!strcasecmp(parameter[1], "identity"))         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1740                                                         else if (!strcasecmp(parameter[1], "const"))            layer->alphagen.alphagen = Q3ALPHAGEN_CONST;
1741                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->alphagen.alphagen = Q3ALPHAGEN_ENTITY;
1742                                                         else if (!strcasecmp(parameter[1], "lightingspecular")) layer->alphagen.alphagen = Q3ALPHAGEN_LIGHTINGSPECULAR;
1743                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSENTITY;
1744                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSVERTEX;
1745                                                         else if (!strcasecmp(parameter[1], "portal"))           layer->alphagen.alphagen = Q3ALPHAGEN_PORTAL;
1746                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->alphagen.alphagen = Q3ALPHAGEN_VERTEX;
1747                                                         else if (!strcasecmp(parameter[1], "wave"))
1748                                                         {
1749                                                                 layer->alphagen.alphagen = Q3ALPHAGEN_WAVE;
1750                                                                 layer->alphagen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1751                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1752                                                                         layer->alphagen.waveparms[i] = atof(parameter[i+3]);
1753                                                         }
1754                                                         else Con_DPrintf("%s parsing warning: unknown alphagen %s\n", search->filenames[fileindex], parameter[1]);
1755                                                 }
1756                                                 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "texgen") || !strcasecmp(parameter[0], "tcgen")))
1757                                                 {
1758                                                         int i;
1759                                                         // observed values: tcgen environment
1760                                                         // no other values have been observed in real shaders
1761                                                         for (i = 0;i < numparameters - 2 && i < Q3TCGEN_MAXPARMS;i++)
1762                                                                 layer->tcgen.parms[i] = atof(parameter[i+2]);
1763                                                              if (!strcasecmp(parameter[1], "base"))        layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1764                                                         else if (!strcasecmp(parameter[1], "texture"))     layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1765                                                         else if (!strcasecmp(parameter[1], "environment")) layer->tcgen.tcgen = Q3TCGEN_ENVIRONMENT;
1766                                                         else if (!strcasecmp(parameter[1], "lightmap"))    layer->tcgen.tcgen = Q3TCGEN_LIGHTMAP;
1767                                                         else if (!strcasecmp(parameter[1], "vector"))      layer->tcgen.tcgen = Q3TCGEN_VECTOR;
1768                                                         else Con_DPrintf("%s parsing warning: unknown tcgen mode %s\n", search->filenames[fileindex], parameter[1]);
1769                                                 }
1770                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "tcmod"))
1771                                                 {
1772                                                         int i, tcmodindex;
1773                                                         // observed values:
1774                                                         // tcmod rotate #
1775                                                         // tcmod scale # #
1776                                                         // tcmod scroll # #
1777                                                         // tcmod stretch sin # # # #
1778                                                         // tcmod stretch triangle # # # #
1779                                                         // tcmod transform # # # # # #
1780                                                         // tcmod turb # # # #
1781                                                         // tcmod turb sin # # # #  (this is bogus)
1782                                                         // no other values have been observed in real shaders
1783                                                         for (tcmodindex = 0;tcmodindex < Q3MAXTCMODS;tcmodindex++)
1784                                                                 if (!layer->tcmods[tcmodindex].tcmod)
1785                                                                         break;
1786                                                         if (tcmodindex < Q3MAXTCMODS)
1787                                                         {
1788                                                                 for (i = 0;i < numparameters - 2 && i < Q3TCMOD_MAXPARMS;i++)
1789                                                                         layer->tcmods[tcmodindex].parms[i] = atof(parameter[i+2]);
1790                                                                          if (!strcasecmp(parameter[1], "entitytranslate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ENTITYTRANSLATE;
1791                                                                 else if (!strcasecmp(parameter[1], "rotate"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ROTATE;
1792                                                                 else if (!strcasecmp(parameter[1], "scale"))           layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCALE;
1793                                                                 else if (!strcasecmp(parameter[1], "scroll"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCROLL;
1794                                                                 else if (!strcasecmp(parameter[1], "page"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_PAGE;
1795                                                                 else if (!strcasecmp(parameter[1], "stretch"))
1796                                                                 {
1797                                                                         layer->tcmods[tcmodindex].tcmod = Q3TCMOD_STRETCH;
1798                                                                         layer->tcmods[tcmodindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1799                                                                         for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1800                                                                                 layer->tcmods[tcmodindex].waveparms[i] = atof(parameter[i+3]);
1801                                                                 }
1802                                                                 else if (!strcasecmp(parameter[1], "transform"))       layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TRANSFORM;
1803                                                                 else if (!strcasecmp(parameter[1], "turb"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TURBULENT;
1804                                                                 else Con_DPrintf("%s parsing warning: unknown tcmod mode %s\n", search->filenames[fileindex], parameter[1]);
1805                                                         }
1806                                                         else
1807                                                                 Con_DPrintf("%s parsing warning: too many tcmods on one layer\n", search->filenames[fileindex]);
1808                                                 }
1809                                                 // break out a level if it was a closing brace (not using the character here to not confuse vim)
1810                                                 if (!strcasecmp(com_token, "}"))
1811                                                         break;
1812                                         }
1813                                         if (layer->rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE || layer->rgbgen.rgbgen == Q3RGBGEN_VERTEX)
1814                                                 shader.lighting = true;
1815                                         if (layer->alphagen.alphagen == Q3ALPHAGEN_VERTEX)
1816                                         {
1817                                                 if (layer == shader.layers + 0)
1818                                                 {
1819                                                         // vertex controlled transparency
1820                                                         shader.vertexalpha = true;
1821                                                 }
1822                                                 else
1823                                                 {
1824                                                         // multilayer terrain shader or similar
1825                                                         shader.textureblendalpha = true;
1826                                                         if (mod_q3shader_force_terrain_alphaflag.integer)
1827                                                                 shader.layers[0].dptexflags |= TEXF_ALPHA;
1828                                                 }
1829                                         }
1830
1831                                         if(mod_q3shader_force_addalpha.integer)
1832                                         {
1833                                                 // for a long while, DP treated GL_ONE GL_ONE as GL_SRC_ALPHA GL_ONE
1834                                                 // this cvar brings back this behaviour
1835                                                 if(layer->blendfunc[0] == GL_ONE && layer->blendfunc[1] == GL_ONE)
1836                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1837                                         }
1838
1839                                         layer->dptexflags = 0;
1840                                         if (layer->alphatest)
1841                                                 layer->dptexflags |= TEXF_ALPHA;
1842                                         switch(layer->blendfunc[0])
1843                                         {
1844                                                 case GL_SRC_ALPHA:
1845                                                 case GL_ONE_MINUS_SRC_ALPHA:
1846                                                         layer->dptexflags |= TEXF_ALPHA;
1847                                                         break;
1848                                         }
1849                                         switch(layer->blendfunc[1])
1850                                         {
1851                                                 case GL_SRC_ALPHA:
1852                                                 case GL_ONE_MINUS_SRC_ALPHA:
1853                                                         layer->dptexflags |= TEXF_ALPHA;
1854                                                         break;
1855                                         }
1856                                         if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
1857                                                 layer->dptexflags |= TEXF_MIPMAP;
1858                                         if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
1859                                                 layer->dptexflags |= TEXF_PICMIP | TEXF_COMPRESS;
1860                                         if (layer->clampmap)
1861                                                 layer->dptexflags |= TEXF_CLAMP;
1862                                         continue;
1863                                 }
1864                                 numparameters = 0;
1865                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1866                                 {
1867                                         if (j < TEXTURE_MAXFRAMES + 4)
1868                                         {
1869                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1870                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1871                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1872                                                 else
1873                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1874                                                 numparameters = j + 1;
1875                                         }
1876                                         if (!COM_ParseToken_QuakeC(&text, true))
1877                                                 break;
1878                                 }
1879                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1880                                 //      parameter[j][0] = 0;
1881                                 if (fileindex == 0 && !strcasecmp(com_token, "}"))
1882                                         break;
1883                                 if (developer_insane.integer)
1884                                 {
1885                                         Con_DPrintf("%s: ", shader.name);
1886                                         for (j = 0;j < numparameters;j++)
1887                                                 Con_DPrintf(" %s", parameter[j]);
1888                                         Con_DPrint("\n");
1889                                 }
1890                                 if (numparameters < 1)
1891                                         continue;
1892                                 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
1893                                 {
1894                                         if (!strcasecmp(parameter[1], "alphashadow"))
1895                                                 shader.surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
1896                                         else if (!strcasecmp(parameter[1], "areaportal"))
1897                                                 shader.surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
1898                                         else if (!strcasecmp(parameter[1], "botclip"))
1899                                                 shader.surfaceparms |= Q3SURFACEPARM_BOTCLIP;
1900                                         else if (!strcasecmp(parameter[1], "clusterportal"))
1901                                                 shader.surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
1902                                         else if (!strcasecmp(parameter[1], "detail"))
1903                                                 shader.surfaceparms |= Q3SURFACEPARM_DETAIL;
1904                                         else if (!strcasecmp(parameter[1], "donotenter"))
1905                                                 shader.surfaceparms |= Q3SURFACEPARM_DONOTENTER;
1906                                         else if (!strcasecmp(parameter[1], "dust"))
1907                                                 shader.surfaceparms |= Q3SURFACEPARM_DUST;
1908                                         else if (!strcasecmp(parameter[1], "hint"))
1909                                                 shader.surfaceparms |= Q3SURFACEPARM_HINT;
1910                                         else if (!strcasecmp(parameter[1], "fog"))
1911                                                 shader.surfaceparms |= Q3SURFACEPARM_FOG;
1912                                         else if (!strcasecmp(parameter[1], "lava"))
1913                                                 shader.surfaceparms |= Q3SURFACEPARM_LAVA;
1914                                         else if (!strcasecmp(parameter[1], "lightfilter"))
1915                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
1916                                         else if (!strcasecmp(parameter[1], "lightgrid"))
1917                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
1918                                         else if (!strcasecmp(parameter[1], "metalsteps"))
1919                                                 shader.surfaceparms |= Q3SURFACEPARM_METALSTEPS;
1920                                         else if (!strcasecmp(parameter[1], "nodamage"))
1921                                                 shader.surfaceparms |= Q3SURFACEPARM_NODAMAGE;
1922                                         else if (!strcasecmp(parameter[1], "nodlight"))
1923                                                 shader.surfaceparms |= Q3SURFACEPARM_NODLIGHT;
1924                                         else if (!strcasecmp(parameter[1], "nodraw"))
1925                                                 shader.surfaceparms |= Q3SURFACEPARM_NODRAW;
1926                                         else if (!strcasecmp(parameter[1], "nodrop"))
1927                                                 shader.surfaceparms |= Q3SURFACEPARM_NODROP;
1928                                         else if (!strcasecmp(parameter[1], "noimpact"))
1929                                                 shader.surfaceparms |= Q3SURFACEPARM_NOIMPACT;
1930                                         else if (!strcasecmp(parameter[1], "nolightmap"))
1931                                                 shader.surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
1932                                         else if (!strcasecmp(parameter[1], "nomarks"))
1933                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMARKS;
1934                                         else if (!strcasecmp(parameter[1], "nomipmaps"))
1935                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
1936                                         else if (!strcasecmp(parameter[1], "nonsolid"))
1937                                                 shader.surfaceparms |= Q3SURFACEPARM_NONSOLID;
1938                                         else if (!strcasecmp(parameter[1], "origin"))
1939                                                 shader.surfaceparms |= Q3SURFACEPARM_ORIGIN;
1940                                         else if (!strcasecmp(parameter[1], "playerclip"))
1941                                                 shader.surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
1942                                         else if (!strcasecmp(parameter[1], "sky"))
1943                                                 shader.surfaceparms |= Q3SURFACEPARM_SKY;
1944                                         else if (!strcasecmp(parameter[1], "slick"))
1945                                                 shader.surfaceparms |= Q3SURFACEPARM_SLICK;
1946                                         else if (!strcasecmp(parameter[1], "slime"))
1947                                                 shader.surfaceparms |= Q3SURFACEPARM_SLIME;
1948                                         else if (!strcasecmp(parameter[1], "structural"))
1949                                                 shader.surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
1950                                         else if (!strcasecmp(parameter[1], "trans"))
1951                                                 shader.surfaceparms |= Q3SURFACEPARM_TRANS;
1952                                         else if (!strcasecmp(parameter[1], "water"))
1953                                                 shader.surfaceparms |= Q3SURFACEPARM_WATER;
1954                                         else if (!strcasecmp(parameter[1], "pointlight"))
1955                                                 shader.surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
1956                                         else if (!strcasecmp(parameter[1], "antiportal"))
1957                                                 shader.surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
1958                                         else if (!strcasecmp(parameter[1], "skip"))
1959                                                 ; // shader.surfaceparms |= Q3SURFACEPARM_SKIP; FIXME we don't have enough #defines for this any more, and the engine doesn't need this one anyway
1960                                         else
1961                                         {
1962                                                 // try custom surfaceparms
1963                                                 for (j = 0; j < numcustsurfaceflags; j++)
1964                                                 {
1965                                                         if (!strcasecmp(custsurfaceparmnames[j], parameter[1]))
1966                                                         {
1967                                                                 shader.surfaceflags |= custsurfaceflags[j];
1968                                                                 break;
1969                                                         }
1970                                                 }
1971                                                 // failed all
1972                                                 if (j == numcustsurfaceflags)
1973                                                         Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
1974                                         }
1975                                 }
1976                                 else if (!strcasecmp(parameter[0], "dpshadow"))
1977                                         shader.dpshadow = true;
1978                                 else if (!strcasecmp(parameter[0], "dpnoshadow"))
1979                                         shader.dpnoshadow = true;
1980                                 else if (!strcasecmp(parameter[0], "dpnortlight"))
1981                                         shader.dpnortlight = true;
1982                                 else if (!strcasecmp(parameter[0], "dpreflectcube"))
1983                                         strlcpy(shader.dpreflectcube, parameter[1], sizeof(shader.dpreflectcube));
1984                                 else if (!strcasecmp(parameter[0], "dpmeshcollisions"))
1985                                         shader.dpmeshcollisions = true;
1986                                 // this sets dpshaderkill to true if dpshaderkillifcvarzero was used, and to false if dpnoshaderkillifcvarzero was used
1987                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvarzero")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvarzero")) && numparameters >= 2)
1988                                 {
1989                                         if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) == 0.0f)
1990                                                 shader.dpshaderkill = dpshaderkill;
1991                                 }
1992                                 // this sets dpshaderkill to true if dpshaderkillifcvar was used, and to false if dpnoshaderkillifcvar was used
1993                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvar")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvar")) && numparameters >= 2)
1994                                 {
1995                                         const char *op = NULL;
1996                                         if (numparameters >= 3)
1997                                                 op = parameter[2];
1998                                         if(!op)
1999                                         {
2000                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) != 0.0f)
2001                                                         shader.dpshaderkill = dpshaderkill;
2002                                         }
2003                                         else if (numparameters >= 4 && !strcmp(op, "=="))
2004                                         {
2005                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) == atof(parameter[3]))
2006                                                         shader.dpshaderkill = dpshaderkill;
2007                                         }
2008                                         else if (numparameters >= 4 && !strcmp(op, "!="))
2009                                         {
2010                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) != atof(parameter[3]))
2011                                                         shader.dpshaderkill = dpshaderkill;
2012                                         }
2013                                         else if (numparameters >= 4 && !strcmp(op, ">"))
2014                                         {
2015                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) > atof(parameter[3]))
2016                                                         shader.dpshaderkill = dpshaderkill;
2017                                         }
2018                                         else if (numparameters >= 4 && !strcmp(op, "<"))
2019                                         {
2020                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) < atof(parameter[3]))
2021                                                         shader.dpshaderkill = dpshaderkill;
2022                                         }
2023                                         else if (numparameters >= 4 && !strcmp(op, ">="))
2024                                         {
2025                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) >= atof(parameter[3]))
2026                                                         shader.dpshaderkill = dpshaderkill;
2027                                         }
2028                                         else if (numparameters >= 4 && !strcmp(op, "<="))
2029                                         {
2030                                                 if (Cvar_VariableValue(&cvars_all, parameter[1], ~0) <= atof(parameter[3]))
2031                                                         shader.dpshaderkill = dpshaderkill;
2032                                         }
2033                                         else
2034                                         {
2035                                                 Con_DPrintf("%s parsing warning: unknown dpshaderkillifcvar op \"%s\", or not enough arguments\n", search->filenames[fileindex], op);
2036                                         }
2037                                 }
2038                                 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
2039                                 {
2040                                         // some q3 skies don't have the sky parm set
2041                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2042                                         strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2043                                 }
2044                                 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
2045                                 {
2046                                         // some q3 skies don't have the sky parm set
2047                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2048                                         if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
2049                                                 strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2050                                 }
2051                                 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
2052                                 {
2053                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
2054                                                 shader.textureflags |= Q3TEXTUREFLAG_TWOSIDED;
2055                                 }
2056                                 else if (!strcasecmp(parameter[0], "nomipmaps"))
2057                                         shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2058                                 else if (!strcasecmp(parameter[0], "nopicmip"))
2059                                         shader.textureflags |= Q3TEXTUREFLAG_NOPICMIP;
2060                                 else if (!strcasecmp(parameter[0], "polygonoffset"))
2061                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2062                                 else if (!strcasecmp(parameter[0], "dppolygonoffset"))
2063                                 {
2064                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2065                                         if(numparameters >= 2)
2066                                         {
2067                                                 shader.biaspolygonfactor = atof(parameter[1]);
2068                                                 if(numparameters >= 3)
2069                                                         shader.biaspolygonoffset = atof(parameter[2]);
2070                                                 else
2071                                                         shader.biaspolygonoffset = 0;
2072                                         }
2073                                 }
2074                                 else if (!strcasecmp(parameter[0], "dptransparentsort") && numparameters >= 2)
2075                                 {
2076                                         shader.textureflags |= Q3TEXTUREFLAG_TRANSPARENTSORT;
2077                                         if (!strcasecmp(parameter[1], "sky"))
2078                                                 shader.transparentsort = TRANSPARENTSORT_SKY;
2079                                         else if (!strcasecmp(parameter[1], "distance"))
2080                                                 shader.transparentsort = TRANSPARENTSORT_DISTANCE;
2081                                         else if (!strcasecmp(parameter[1], "hud"))
2082                                                 shader.transparentsort = TRANSPARENTSORT_HUD;
2083                                         else
2084                                                 Con_DPrintf("%s parsing warning: unknown dptransparentsort category \"%s\", or not enough arguments\n", search->filenames[fileindex], parameter[1]);
2085                                 }
2086                                 else if (!strcasecmp(parameter[0], "dprefract") && numparameters >= 5)
2087                                 {
2088                                         shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
2089                                         shader.refractfactor = atof(parameter[1]);
2090                                         Vector4Set(shader.refractcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), 1);
2091                                 }
2092                                 else if (!strcasecmp(parameter[0], "dpreflect") && numparameters >= 6)
2093                                 {
2094                                         shader.textureflags |= Q3TEXTUREFLAG_REFLECTION;
2095                                         shader.reflectfactor = atof(parameter[1]);
2096                                         Vector4Set(shader.reflectcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), atof(parameter[5]));
2097                                 }
2098                                 else if (!strcasecmp(parameter[0], "dpcamera"))
2099                                 {
2100                                         shader.textureflags |= Q3TEXTUREFLAG_CAMERA;
2101                                 }
2102                                 else if (!strcasecmp(parameter[0], "dpwater") && numparameters >= 12)
2103                                 {
2104                                         shader.textureflags |= Q3TEXTUREFLAG_WATERSHADER;
2105                                         shader.reflectmin = atof(parameter[1]);
2106                                         shader.reflectmax = atof(parameter[2]);
2107                                         shader.refractfactor = atof(parameter[3]);
2108                                         shader.reflectfactor = atof(parameter[4]);
2109                                         Vector4Set(shader.refractcolor4f, atof(parameter[5]), atof(parameter[6]), atof(parameter[7]), 1);
2110                                         Vector4Set(shader.reflectcolor4f, atof(parameter[8]), atof(parameter[9]), atof(parameter[10]), 1);
2111                                         shader.r_water_wateralpha = atof(parameter[11]);
2112                                 }
2113                                 else if (!strcasecmp(parameter[0], "dpwaterscroll") && numparameters >= 3)
2114                                 {
2115                                         shader.r_water_waterscroll[0] = 1/atof(parameter[1]);
2116                                         shader.r_water_waterscroll[1] = 1/atof(parameter[2]);
2117                                 }
2118                                 else if (!strcasecmp(parameter[0], "dpglossintensitymod") && numparameters >= 2)
2119                                 {
2120                                         shader.specularscalemod = atof(parameter[1]);
2121                                 }
2122                                 else if (!strcasecmp(parameter[0], "dpglossexponentmod") && numparameters >= 2)
2123                                 {
2124                                         shader.specularpowermod = atof(parameter[1]);
2125                                 }
2126                                 else if (!strcasecmp(parameter[0], "dprtlightambient") && numparameters >= 2)
2127                                 {
2128                                         shader.rtlightambient = atof(parameter[1]);
2129                                 }
2130                                 else if (!strcasecmp(parameter[0], "dpoffsetmapping") && numparameters >= 2)
2131                                 {
2132                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "off"))
2133                                                 shader.offsetmapping = OFFSETMAPPING_OFF;
2134                                         else if (!strcasecmp(parameter[1], "default") || !strcasecmp(parameter[1], "normal"))
2135                                                 shader.offsetmapping = OFFSETMAPPING_DEFAULT;
2136                                         else if (!strcasecmp(parameter[1], "linear"))
2137                                                 shader.offsetmapping = OFFSETMAPPING_LINEAR;
2138                                         else if (!strcasecmp(parameter[1], "relief"))
2139                                                 shader.offsetmapping = OFFSETMAPPING_RELIEF;
2140                                         if (numparameters >= 3)
2141                                                 shader.offsetscale = atof(parameter[2]);
2142                                         if (numparameters >= 5)
2143                                         {
2144                                                 if(!strcasecmp(parameter[3], "bias"))
2145                                                         shader.offsetbias = atof(parameter[4]);
2146                                                 else if(!strcasecmp(parameter[3], "match"))
2147                                                         shader.offsetbias = 1.0f - atof(parameter[4]);
2148                                                 else if(!strcasecmp(parameter[3], "match8"))
2149                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 255.0f;
2150                                                 else if(!strcasecmp(parameter[3], "match16"))
2151                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 65535.0f;
2152                                         }
2153                                 }
2154                                 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
2155                                 {
2156                                         int i, deformindex;
2157                                         for (deformindex = 0;deformindex < Q3MAXDEFORMS;deformindex++)
2158                                                 if (!shader.deforms[deformindex].deform)
2159                                                         break;
2160                                         if (deformindex < Q3MAXDEFORMS)
2161                                         {
2162                                                 for (i = 0;i < numparameters - 2 && i < Q3DEFORM_MAXPARMS;i++)
2163                                                         shader.deforms[deformindex].parms[i] = atof(parameter[i+2]);
2164                                                      if (!strcasecmp(parameter[1], "projectionshadow")) shader.deforms[deformindex].deform = Q3DEFORM_PROJECTIONSHADOW;
2165                                                 else if (!strcasecmp(parameter[1], "autosprite"      )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE;
2166                                                 else if (!strcasecmp(parameter[1], "autosprite2"     )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE2;
2167                                                 else if (!strcasecmp(parameter[1], "text0"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT0;
2168                                                 else if (!strcasecmp(parameter[1], "text1"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT1;
2169                                                 else if (!strcasecmp(parameter[1], "text2"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT2;
2170                                                 else if (!strcasecmp(parameter[1], "text3"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT3;
2171                                                 else if (!strcasecmp(parameter[1], "text4"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT4;
2172                                                 else if (!strcasecmp(parameter[1], "text5"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT5;
2173                                                 else if (!strcasecmp(parameter[1], "text6"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT6;
2174                                                 else if (!strcasecmp(parameter[1], "text7"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT7;
2175                                                 else if (!strcasecmp(parameter[1], "bulge"           )) shader.deforms[deformindex].deform = Q3DEFORM_BULGE;
2176                                                 else if (!strcasecmp(parameter[1], "normal"          )) shader.deforms[deformindex].deform = Q3DEFORM_NORMAL;
2177                                                 else if (!strcasecmp(parameter[1], "wave"            ))
2178                                                 {
2179                                                         shader.deforms[deformindex].deform = Q3DEFORM_WAVE;
2180                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[3]);
2181                                                         for (i = 0;i < numparameters - 4 && i < Q3WAVEPARMS;i++)
2182                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+4]);
2183                                                 }
2184                                                 else if (!strcasecmp(parameter[1], "move"            ))
2185                                                 {
2186                                                         shader.deforms[deformindex].deform = Q3DEFORM_MOVE;
2187                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[5]);
2188                                                         for (i = 0;i < numparameters - 6 && i < Q3WAVEPARMS;i++)
2189                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+6]);
2190                                                 }
2191                                         }
2192                                 }
2193                         }
2194                         // hide this shader if a cvar said it should be killed
2195                         if (shader.dpshaderkill)
2196                                 shader.numlayers = 0;
2197                         // fix up multiple reflection types
2198                         if(shader.textureflags & Q3TEXTUREFLAG_WATERSHADER)
2199                                 shader.textureflags &= ~(Q3TEXTUREFLAG_REFRACTION | Q3TEXTUREFLAG_REFLECTION | Q3TEXTUREFLAG_CAMERA);
2200
2201                         Q3Shader_AddToHash (&shader);
2202                 }
2203                 Mem_Free(f);
2204         }
2205         FS_FreeSearch(search);
2206         // free custinfoparm values
2207         for (j = 0; j < numcustsurfaceflags; j++)
2208                 Mem_Free(custsurfaceparmnames[j]);
2209 }
2210
2211 shader_t *Mod_LookupQ3Shader(const char *name)
2212 {
2213         unsigned short hash;
2214         q3shader_hash_entry_t* entry;
2215         if (!q3shaders_mem)
2216                 Mod_LoadQ3Shaders();
2217         hash = CRC_Block_CaseInsensitive ((const unsigned char *)name, strlen (name));
2218         entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
2219         while (entry != NULL)
2220         {
2221                 if (strcasecmp (entry->shader.name, name) == 0)
2222                         return &entry->shader;
2223                 entry = entry->chain;
2224         }
2225         return NULL;
2226 }
2227
2228 texture_shaderpass_t *Mod_CreateShaderPass(mempool_t *mempool, skinframe_t *skinframe)
2229 {
2230         texture_shaderpass_t *shaderpass = (texture_shaderpass_t *)Mem_Alloc(mempool, sizeof(*shaderpass));
2231         shaderpass->framerate = 0.0f;
2232         shaderpass->numframes = 1;
2233         shaderpass->blendfunc[0] = GL_ONE;
2234         shaderpass->blendfunc[1] = GL_ZERO;
2235         shaderpass->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
2236         shaderpass->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
2237         shaderpass->alphatest = false;
2238         shaderpass->tcgen.tcgen = Q3TCGEN_TEXTURE;
2239         shaderpass->skinframes[0] = skinframe;
2240         return shaderpass;
2241 }
2242
2243 texture_shaderpass_t *Mod_CreateShaderPassFromQ3ShaderLayer(mempool_t *mempool, const char *modelname, q3shaderinfo_layer_t *layer, int layerindex, int texflags, const char *texturename)
2244 {
2245         int j;
2246         texture_shaderpass_t *shaderpass = (texture_shaderpass_t *)Mem_Alloc(mempool, sizeof(*shaderpass));
2247         shaderpass->alphatest = layer->alphatest != 0;
2248         shaderpass->framerate = layer->framerate;
2249         shaderpass->numframes = layer->numframes;
2250         shaderpass->blendfunc[0] = layer->blendfunc[0];
2251         shaderpass->blendfunc[1] = layer->blendfunc[1];
2252         shaderpass->rgbgen = layer->rgbgen;
2253         shaderpass->alphagen = layer->alphagen;
2254         shaderpass->tcgen = layer->tcgen;
2255         for (j = 0; j < Q3MAXTCMODS && layer->tcmods[j].tcmod != Q3TCMOD_NONE; j++)
2256                 shaderpass->tcmods[j] = layer->tcmods[j];
2257         for (j = 0; j < layer->numframes; j++)
2258         {
2259                 for (int i = 0; layer->texturename[j][i]; i++)
2260                         if(layer->texturename[j][i] == '\\')
2261                                 layer->texturename[j][i] = '/';
2262                 shaderpass->skinframes[j] = R_SkinFrame_LoadExternal(layer->texturename[j], texflags, false, true);
2263         }
2264         return shaderpass;
2265 }
2266
2267 qbool Mod_LoadTextureFromQ3Shader(mempool_t *mempool, const char *modelname, texture_t *texture, const char *name, qbool warnmissing, qbool fallback, int defaulttexflags, int defaultmaterialflags)
2268 {
2269         int texflagsmask, texflagsor;
2270         qbool success = true;
2271         shader_t *shader;
2272         if (!name)
2273                 name = "";
2274         strlcpy(texture->name, name, sizeof(texture->name));
2275         texture->basealpha = 1.0f;
2276         shader = name[0] ? Mod_LookupQ3Shader(name) : NULL;
2277
2278         // allow disabling of picmip or compression by defaulttexflags
2279         texflagsmask = ~0;
2280         if(!(defaulttexflags & TEXF_PICMIP))
2281                 texflagsmask &= ~TEXF_PICMIP;
2282         if(!(defaulttexflags & TEXF_COMPRESS))
2283                 texflagsmask &= ~TEXF_COMPRESS;
2284         texflagsor = 0;
2285         if(defaulttexflags & TEXF_ISWORLD)
2286                 texflagsor |= TEXF_ISWORLD;
2287         if(defaulttexflags & TEXF_ISSPRITE)
2288                 texflagsor |= TEXF_ISSPRITE;
2289         // unless later loaded from the shader
2290         texture->offsetmapping = (mod_noshader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
2291         texture->offsetscale = 1;
2292         texture->offsetbias = 0;
2293         texture->specularscalemod = 1;
2294         texture->specularpowermod = 1;
2295         texture->rtlightambient = 0;
2296         texture->transparentsort = TRANSPARENTSORT_DISTANCE;
2297         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
2298         // JUST GREP FOR "specularscalemod = 1".
2299
2300         if (shader)
2301         {
2302                 if (developer_loading.integer)
2303                         Con_Printf("%s: loaded shader for %s\n", modelname, name);
2304
2305                 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
2306                 {
2307                         texture->basematerialflags = MATERIALFLAG_SKY;
2308                         if (shader->skyboxname[0] && loadmodel)
2309                         {
2310                                 // quake3 seems to append a _ to the skybox name, so this must do so as well
2311                                 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
2312                         }
2313                 }
2314                 else if ((texture->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
2315                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2316                 else
2317                         texture->basematerialflags = MATERIALFLAG_WALL;
2318
2319                 if (shader->layers[0].alphatest)
2320                         texture->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
2321                 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
2322                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
2323                 if (shader->textureflags & Q3TEXTUREFLAG_POLYGONOFFSET)
2324                 {
2325                         texture->biaspolygonoffset += shader->biaspolygonoffset;
2326                         texture->biaspolygonfactor += shader->biaspolygonfactor;
2327                 }
2328                 if (shader->textureflags & Q3TEXTUREFLAG_REFRACTION)
2329                         texture->basematerialflags |= MATERIALFLAG_REFRACTION;
2330                 if (shader->textureflags & Q3TEXTUREFLAG_REFLECTION)
2331                         texture->basematerialflags |= MATERIALFLAG_REFLECTION;
2332                 if (shader->textureflags & Q3TEXTUREFLAG_WATERSHADER)
2333                         texture->basematerialflags |= MATERIALFLAG_WATERSHADER;
2334                 if (shader->textureflags & Q3TEXTUREFLAG_CAMERA)
2335                         texture->basematerialflags |= MATERIALFLAG_CAMERA;
2336                 texture->customblendfunc[0] = GL_ONE;
2337                 texture->customblendfunc[1] = GL_ZERO;
2338                 texture->transparentsort = shader->transparentsort;
2339                 if (shader->numlayers > 0)
2340                 {
2341                         texture->customblendfunc[0] = shader->layers[0].blendfunc[0];
2342                         texture->customblendfunc[1] = shader->layers[0].blendfunc[1];
2343 /*
2344 Q3 shader blendfuncs actually used in the game (* = supported by DP)
2345 * additive               GL_ONE GL_ONE
2346 additive weird         GL_ONE GL_SRC_ALPHA
2347 additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
2348 * alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
2349 alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
2350 brighten               GL_DST_COLOR GL_ONE
2351 brighten               GL_ONE GL_SRC_COLOR
2352 brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
2353 brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
2354 * modulate               GL_DST_COLOR GL_ZERO
2355 * modulate               GL_ZERO GL_SRC_COLOR
2356 modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
2357 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
2358 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
2359 * modulate x2            GL_DST_COLOR GL_SRC_COLOR
2360 * no blend               GL_ONE GL_ZERO
2361 nothing                GL_ZERO GL_ONE
2362 */
2363                         // if not opaque, figure out what blendfunc to use
2364                         if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
2365                         {
2366                                 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
2367                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2368                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
2369                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2370                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2371                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2372                                 else
2373                                         texture->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2374                         }
2375                 }
2376                 if (!shader->lighting)
2377                         texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
2378
2379                 // here be dragons: convert quake3 shaders to material
2380                 if (shader->numlayers > 0)
2381                 {
2382                         int i;
2383                         int terrainbackgroundlayer = -1;
2384                         int lightmaplayer = -1;
2385                         int alphagenspecularlayer = -1;
2386                         int rgbgenvertexlayer = -1;
2387                         int rgbgendiffuselayer = -1;
2388                         int materiallayer = -1;
2389                         int endofprelayers = 0;
2390                         int firstpostlayer = 0;
2391                         int shaderpassindex = 0;
2392                         for (i = 0; i < shader->numlayers; i++)
2393                         {
2394                                 if (shader->layers[i].texturename != NULL && !strcasecmp(shader->layers[i].texturename[0], "$lightmap"))
2395                                         lightmaplayer = i;
2396                                 if (shader->layers[i].rgbgen.rgbgen == Q3RGBGEN_VERTEX)
2397                                         rgbgenvertexlayer = i;
2398                                 if (shader->layers[i].rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE)
2399                                         rgbgendiffuselayer = i;
2400                                 if (shader->layers[i].alphagen.alphagen == Q3ALPHAGEN_LIGHTINGSPECULAR)
2401                                         alphagenspecularlayer = i;
2402                         }
2403                         if (shader->numlayers >= 2
2404                          && shader->layers[1].alphagen.alphagen == Q3ALPHAGEN_VERTEX
2405                          && (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ZERO && !shader->layers[0].alphatest)
2406                          && ((shader->layers[1].blendfunc[0] == GL_SRC_ALPHA && shader->layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2407                                  || (shader->layers[1].blendfunc[0] == GL_ONE && shader->layers[1].blendfunc[1] == GL_ZERO && shader->layers[1].alphatest)))
2408                         {
2409                                 // terrain blend or certain other effects involving alphatest over a regular layer
2410                                 terrainbackgroundlayer = 0;
2411                                 materiallayer = 1;
2412                                 // terrain may be vertex lit (in which case both layers are rgbGen vertex) or lightmapped (in which ase the third layer is lightmap)
2413                                 firstpostlayer = lightmaplayer >= 0 ? lightmaplayer + 1 : materiallayer + 1;
2414                         }
2415                         else if (lightmaplayer == 0)
2416                         {
2417                                 // ordinary texture but with $lightmap before diffuse
2418                                 materiallayer = 1;
2419                                 firstpostlayer = lightmaplayer + 2;
2420                         }
2421                         else if (lightmaplayer >= 1)
2422                         {
2423                                 // ordinary texture - we don't properly apply lighting to the prelayers, but oh well...
2424                                 endofprelayers = lightmaplayer - 1;
2425                                 materiallayer = lightmaplayer - 1;
2426                                 firstpostlayer = lightmaplayer + 1;
2427                         }
2428                         else if (rgbgenvertexlayer >= 0)
2429                         {
2430                                 // map models with baked lighting
2431                                 materiallayer = rgbgenvertexlayer;
2432                                 endofprelayers = rgbgenvertexlayer;
2433                                 firstpostlayer = rgbgenvertexlayer + 1;
2434                                 // special case for rgbgen vertex if MATERIALFLAG_VERTEXCOLOR is expected on this material
2435                                 if (defaultmaterialflags & MATERIALFLAG_VERTEXCOLOR)
2436                                         texture->basematerialflags |= MATERIALFLAG_VERTEXCOLOR | MATERIALFLAG_ALPHAGEN_VERTEX;
2437                         }
2438                         else if (rgbgendiffuselayer >= 0)
2439                         {
2440                                 // entity models with dynamic lighting
2441                                 materiallayer = rgbgendiffuselayer;
2442                                 endofprelayers = rgbgendiffuselayer;
2443                                 firstpostlayer = rgbgendiffuselayer + 1;
2444                                 // 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)...
2445                                 if (alphagenspecularlayer >= 0)
2446                                         firstpostlayer = alphagenspecularlayer + 1;
2447                         }
2448                         else
2449                         {
2450                                 // special effects shaders - treat first as primary layer and do everything else as post
2451                                 endofprelayers = 0;
2452                                 materiallayer = 0;
2453                                 firstpostlayer = 1;
2454                         }
2455                         // convert the main material layer
2456                         // 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
2457                         if (materiallayer >= 0)
2458                                 texture->materialshaderpass = texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[materiallayer], materiallayer, (shader->layers[materiallayer].dptexflags & texflagsmask) | texflagsor, texture->name);
2459                         // convert the terrain background blend layer (if any)
2460                         if (terrainbackgroundlayer >= 0)
2461                                 texture->backgroundshaderpass = texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[terrainbackgroundlayer], terrainbackgroundlayer, (shader->layers[terrainbackgroundlayer].dptexflags & texflagsmask) | texflagsor, texture->name);
2462                         // convert the prepass layers (if any)
2463                         texture->startpreshaderpass = shaderpassindex;
2464                         for (i = 0; i < endofprelayers; i++)
2465                                 texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[i], i, (shader->layers[i].dptexflags & texflagsmask) | texflagsor, texture->name);
2466                         texture->endpreshaderpass = shaderpassindex;
2467                         texture->startpostshaderpass = shaderpassindex;
2468                         // convert the postpass layers (if any)
2469                         for (i = firstpostlayer; i < shader->numlayers; i++)
2470                                 texture->shaderpasses[shaderpassindex++] = Mod_CreateShaderPassFromQ3ShaderLayer(mempool, modelname, &shader->layers[i], i, (shader->layers[i].dptexflags & texflagsmask) | texflagsor, texture->name);
2471                         texture->startpostshaderpass = shaderpassindex;
2472                 }
2473
2474                 if (shader->dpshadow)
2475                         texture->basematerialflags &= ~MATERIALFLAG_NOSHADOW;
2476                 if (shader->dpnoshadow)
2477                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW;
2478                 if (shader->dpnortlight)
2479                         texture->basematerialflags |= MATERIALFLAG_NORTLIGHT;
2480                 if (shader->vertexalpha)
2481                         texture->basematerialflags |= MATERIALFLAG_ALPHAGEN_VERTEX;
2482                 memcpy(texture->deforms, shader->deforms, sizeof(texture->deforms));
2483                 texture->reflectmin = shader->reflectmin;
2484                 texture->reflectmax = shader->reflectmax;
2485                 texture->refractfactor = shader->refractfactor;
2486                 Vector4Copy(shader->refractcolor4f, texture->refractcolor4f);
2487                 texture->reflectfactor = shader->reflectfactor;
2488                 Vector4Copy(shader->reflectcolor4f, texture->reflectcolor4f);
2489                 texture->r_water_wateralpha = shader->r_water_wateralpha;
2490                 Vector2Copy(shader->r_water_waterscroll, texture->r_water_waterscroll);
2491                 texture->offsetmapping = shader->offsetmapping;
2492                 texture->offsetscale = shader->offsetscale;
2493                 texture->offsetbias = shader->offsetbias;
2494                 texture->specularscalemod = shader->specularscalemod;
2495                 texture->specularpowermod = shader->specularpowermod;
2496                 texture->rtlightambient = shader->rtlightambient;
2497                 texture->refractive_index = mod_q3shader_default_refractive_index.value;
2498                 if (shader->dpreflectcube[0])
2499                         texture->reflectcubetexture = R_GetCubemap(shader->dpreflectcube);
2500
2501                 // set up default supercontents (on q3bsp this is overridden by the q3bsp loader)
2502                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2503                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents  = SUPERCONTENTS_LAVA         ;
2504                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents  = SUPERCONTENTS_SLIME        ;
2505                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents  = SUPERCONTENTS_WATER        ;
2506                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents  = 0                          ;
2507                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents  = SUPERCONTENTS_PLAYERCLIP   ;
2508                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents  = SUPERCONTENTS_MONSTERCLIP  ;
2509                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents  = SUPERCONTENTS_SKY          ;
2510
2511         //      if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->supercontents |= SUPERCONTENTS_ALPHASHADOW  ;
2512         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->supercontents |= SUPERCONTENTS_AREAPORTAL   ;
2513         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->supercontents |= SUPERCONTENTS_CLUSTERPORTAL;
2514         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->supercontents |= SUPERCONTENTS_DETAIL       ;
2515                 if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->supercontents |= SUPERCONTENTS_DONOTENTER   ;
2516         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->supercontents |= SUPERCONTENTS_FOG          ;
2517                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents |= SUPERCONTENTS_LAVA         ;
2518         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->supercontents |= SUPERCONTENTS_LIGHTFILTER  ;
2519         //      if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->supercontents |= SUPERCONTENTS_METALSTEPS   ;
2520         //      if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->supercontents |= SUPERCONTENTS_NODAMAGE     ;
2521         //      if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->supercontents |= SUPERCONTENTS_NODLIGHT     ;
2522         //      if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->supercontents |= SUPERCONTENTS_NODRAW       ;
2523                 if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->supercontents |= SUPERCONTENTS_NODROP       ;
2524         //      if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->supercontents |= SUPERCONTENTS_NOIMPACT     ;
2525         //      if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->supercontents |= SUPERCONTENTS_NOLIGHTMAP   ;
2526         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->supercontents |= SUPERCONTENTS_NOMARKS      ;
2527         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->supercontents |= SUPERCONTENTS_NOMIPMAPS    ;
2528                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents &=~SUPERCONTENTS_SOLID        ;
2529         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->supercontents |= SUPERCONTENTS_ORIGIN       ;
2530                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents |= SUPERCONTENTS_PLAYERCLIP   ;
2531                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents |= SUPERCONTENTS_SKY          ;
2532         //      if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->supercontents |= SUPERCONTENTS_SLICK        ;
2533                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents |= SUPERCONTENTS_SLIME        ;
2534         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->supercontents |= SUPERCONTENTS_STRUCTURAL   ;
2535         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->supercontents |= SUPERCONTENTS_TRANS        ;
2536                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents |= SUPERCONTENTS_WATER        ;
2537         //      if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->supercontents |= SUPERCONTENTS_POINTLIGHT   ;
2538         //      if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->supercontents |= SUPERCONTENTS_HINT         ;
2539         //      if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->supercontents |= SUPERCONTENTS_DUST         ;
2540                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents |= SUPERCONTENTS_BOTCLIP      | SUPERCONTENTS_MONSTERCLIP;
2541         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->supercontents |= SUPERCONTENTS_LIGHTGRID    ;
2542         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->supercontents |= SUPERCONTENTS_ANTIPORTAL   ;
2543
2544                 texture->surfaceflags = shader->surfaceflags;
2545                 if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->surfaceflags |= Q3SURFACEFLAG_ALPHASHADOW  ;
2546         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_AREAPORTAL   ;
2547         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->surfaceflags |= Q3SURFACEFLAG_CLUSTERPORTAL;
2548         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->surfaceflags |= Q3SURFACEFLAG_DETAIL       ;
2549         //      if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->surfaceflags |= Q3SURFACEFLAG_DONOTENTER   ;
2550         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->surfaceflags |= Q3SURFACEFLAG_FOG          ;
2551         //      if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->surfaceflags |= Q3SURFACEFLAG_LAVA         ;
2552                 if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTFILTER  ;
2553                 if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->surfaceflags |= Q3SURFACEFLAG_METALSTEPS   ;
2554                 if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->surfaceflags |= Q3SURFACEFLAG_NODAMAGE     ;
2555                 if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->surfaceflags |= Q3SURFACEFLAG_NODLIGHT     ;
2556                 if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->surfaceflags |= Q3SURFACEFLAG_NODRAW       ;
2557         //      if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->surfaceflags |= Q3SURFACEFLAG_NODROP       ;
2558                 if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->surfaceflags |= Q3SURFACEFLAG_NOIMPACT     ;
2559                 if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->surfaceflags |= Q3SURFACEFLAG_NOLIGHTMAP   ;
2560                 if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->surfaceflags |= Q3SURFACEFLAG_NOMARKS      ;
2561         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->surfaceflags |= Q3SURFACEFLAG_NOMIPMAPS    ;
2562                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->surfaceflags |= Q3SURFACEFLAG_NONSOLID     ;
2563         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->surfaceflags |= Q3SURFACEFLAG_ORIGIN       ;
2564         //      if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->surfaceflags |= Q3SURFACEFLAG_PLAYERCLIP   ;
2565                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->surfaceflags |= Q3SURFACEFLAG_SKY          ;
2566                 if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->surfaceflags |= Q3SURFACEFLAG_SLICK        ;
2567         //      if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->surfaceflags |= Q3SURFACEFLAG_SLIME        ;
2568         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->surfaceflags |= Q3SURFACEFLAG_STRUCTURAL   ;
2569         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->surfaceflags |= Q3SURFACEFLAG_TRANS        ;
2570         //      if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->surfaceflags |= Q3SURFACEFLAG_WATER        ;
2571                 if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->surfaceflags |= Q3SURFACEFLAG_POINTLIGHT   ;
2572                 if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->surfaceflags |= Q3SURFACEFLAG_HINT         ;
2573                 if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->surfaceflags |= Q3SURFACEFLAG_DUST         ;
2574         //      if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->surfaceflags |= Q3SURFACEFLAG_BOTCLIP      ;
2575         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTGRID    ;
2576         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_ANTIPORTAL   ;
2577
2578                 if (shader->dpmeshcollisions)
2579                         texture->basematerialflags |= MATERIALFLAG_MESHCOLLISIONS;
2580                 if (shader->dpshaderkill && developer_extra.integer)
2581                         Con_DPrintf("^1%s:^7 killing shader ^3\"%s\" because of cvar\n", modelname, name);
2582         }
2583         else if (!strcmp(texture->name, "noshader") || !texture->name[0])
2584         {
2585                 if (developer_extra.integer)
2586                         Con_DPrintf("^1%s:^7 using fallback noshader material for ^3\"%s\"\n", modelname, name);
2587                 texture->basematerialflags = defaultmaterialflags;
2588                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2589         }
2590         else if (!strcmp(texture->name, "common/nodraw") || !strcmp(texture->name, "textures/common/nodraw"))
2591         {
2592                 if (developer_extra.integer)
2593                         Con_DPrintf("^1%s:^7 using fallback nodraw material for ^3\"%s\"\n", modelname, name);
2594                 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2595                 texture->supercontents = SUPERCONTENTS_SOLID;
2596         }
2597         else
2598         {
2599                 if (developer_extra.integer)
2600                         Con_DPrintf("^1%s:^7 No shader found for texture ^3\"%s\"\n", modelname, texture->name);
2601                 if (texture->surfaceflags & Q3SURFACEFLAG_NODRAW)
2602                 {
2603                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2604                         texture->supercontents = SUPERCONTENTS_SOLID;
2605                 }
2606                 else if (texture->surfaceflags & Q3SURFACEFLAG_SKY)
2607                 {
2608                         texture->basematerialflags = MATERIALFLAG_SKY;
2609                         texture->supercontents = SUPERCONTENTS_SKY;
2610                 }
2611                 else
2612                 {
2613                         texture->basematerialflags = defaultmaterialflags;
2614                         texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2615                 }
2616                 if(cls.state == ca_dedicated)
2617                 {
2618                         texture->materialshaderpass = NULL;
2619                         success = false;
2620                 }
2621                 else
2622                 {
2623                         skinframe_t *skinframe = R_SkinFrame_LoadExternal(texture->name, defaulttexflags, false, fallback);
2624                         if (skinframe)
2625                         {
2626                                 texture->materialshaderpass = texture->shaderpasses[0] = Mod_CreateShaderPass(mempool, skinframe);
2627                                 if (texture->materialshaderpass->skinframes[0]->hasalpha)
2628                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2629                                 if (texture->q2contents)
2630                                         texture->supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(texture->q2contents);
2631                         }
2632                         else
2633                                 success = false;
2634                         if (!success && warnmissing)
2635                                 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"\n", modelname, texture->name);
2636                 }
2637         }
2638         // init the animation variables
2639         texture->currentframe = texture;
2640         texture->currentmaterialflags = texture->basematerialflags;
2641         if (!texture->materialshaderpass)
2642                 texture->materialshaderpass = texture->shaderpasses[0] = Mod_CreateShaderPass(mempool, R_SkinFrame_LoadMissing());
2643         if (!texture->materialshaderpass->skinframes[0])
2644                 texture->materialshaderpass->skinframes[0] = R_SkinFrame_LoadMissing();
2645         texture->currentskinframe = texture->materialshaderpass ? texture->materialshaderpass->skinframes[0] : NULL;
2646         texture->backgroundcurrentskinframe = texture->backgroundshaderpass ? texture->backgroundshaderpass->skinframes[0] : NULL;
2647         return success;
2648 }
2649
2650 void Mod_LoadCustomMaterial(mempool_t *mempool, texture_t *texture, const char *name, int supercontents, int materialflags, skinframe_t *skinframe)
2651 {
2652         if (!(materialflags & (MATERIALFLAG_WALL | MATERIALFLAG_SKY)))
2653                 Con_DPrintf("^1Custom texture ^3\"%s\" does not have MATERIALFLAG_WALL set\n", texture->name);
2654
2655         strlcpy(texture->name, name, sizeof(texture->name));
2656         texture->basealpha = 1.0f;
2657         texture->basematerialflags = materialflags;
2658         texture->supercontents = supercontents;
2659
2660         texture->offsetmapping = (mod_noshader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
2661         texture->offsetscale = 1;
2662         texture->offsetbias = 0;
2663         texture->specularscalemod = 1;
2664         texture->specularpowermod = 1;
2665         texture->rtlightambient = 0;
2666         texture->transparentsort = TRANSPARENTSORT_DISTANCE;
2667         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
2668         // JUST GREP FOR "specularscalemod = 1".
2669
2670         if (developer_extra.integer)
2671                 Con_DPrintf("^1Custom texture ^3\"%s\"\n", texture->name);
2672         if (skinframe)
2673                 texture->materialshaderpass = texture->shaderpasses[0] = Mod_CreateShaderPass(mempool, skinframe);
2674
2675         // init the animation variables
2676         texture->currentmaterialflags = texture->basematerialflags;
2677         texture->currentframe = texture;
2678         texture->currentskinframe = skinframe;
2679         texture->backgroundcurrentskinframe = NULL;
2680 }
2681
2682 void Mod_UnloadCustomMaterial(texture_t *texture, qbool purgeskins)
2683 {
2684         long unsigned int i, j;
2685         for (i = 0; i < sizeof(texture->shaderpasses) / sizeof(texture->shaderpasses[0]); i++)
2686         {
2687                 if (texture->shaderpasses[i])
2688                 {
2689                         if (purgeskins)
2690                                 for (j = 0; j < sizeof(texture->shaderpasses[i]->skinframes) / sizeof(skinframe_t *);j++)
2691                                         if (texture->shaderpasses[i]->skinframes[j] && texture->shaderpasses[i]->skinframes[j]->base)
2692                                                 R_SkinFrame_PurgeSkinFrame(texture->shaderpasses[i]->skinframes[j]);
2693                         Mem_Free(texture->shaderpasses[i]);
2694                         texture->shaderpasses[i] = NULL;
2695                 }
2696         }
2697         texture->materialshaderpass = NULL;
2698         texture->currentskinframe = NULL;
2699         texture->backgroundcurrentskinframe = NULL;
2700 }
2701
2702 skinfile_t *Mod_LoadSkinFiles(void)
2703 {
2704         int i, words, line, wordsoverflow;
2705         char *text;
2706         const char *data;
2707         skinfile_t *skinfile = NULL, *first = NULL;
2708         skinfileitem_t *skinfileitem;
2709         char word[10][MAX_QPATH];
2710         char vabuf[1024];
2711
2712 /*
2713 sample file:
2714 U_bodyBox,models/players/Legoman/BikerA2.tga
2715 U_RArm,models/players/Legoman/BikerA1.tga
2716 U_LArm,models/players/Legoman/BikerA1.tga
2717 U_armor,common/nodraw
2718 U_sword,common/nodraw
2719 U_shield,common/nodraw
2720 U_homb,common/nodraw
2721 U_backpack,common/nodraw
2722 U_colcha,common/nodraw
2723 tag_head,
2724 tag_weapon,
2725 tag_torso,
2726 */
2727         memset(word, 0, sizeof(word));
2728         for (i = 0;i < 256 && (data = text = (char *)FS_LoadFile(va(vabuf, sizeof(vabuf), "%s_%i.skin", loadmodel->name, i), tempmempool, true, NULL));i++)
2729         {
2730                 // If it's the first file we parse
2731                 if (skinfile == NULL)
2732                 {
2733                         skinfile = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2734                         first = skinfile;
2735                 }
2736                 else
2737                 {
2738                         skinfile->next = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2739                         skinfile = skinfile->next;
2740                 }
2741                 skinfile->next = NULL;
2742
2743                 for(line = 0;;line++)
2744                 {
2745                         // parse line
2746                         if (!COM_ParseToken_QuakeC(&data, true))
2747                                 break;
2748                         if (!strcmp(com_token, "\n"))
2749                                 continue;
2750                         words = 0;
2751                         wordsoverflow = false;
2752                         do
2753                         {
2754                                 if (words < 10)
2755                                         strlcpy(word[words++], com_token, sizeof (word[0]));
2756                                 else
2757                                         wordsoverflow = true;
2758                         }
2759                         while (COM_ParseToken_QuakeC(&data, true) && strcmp(com_token, "\n"));
2760                         if (wordsoverflow)
2761                         {
2762                                 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);
2763                                 continue;
2764                         }
2765                         // words is always >= 1
2766                         if (!strcmp(word[0], "replace"))
2767                         {
2768                                 if (words == 3)
2769                                 {
2770                                         if (developer_loading.integer)
2771                                                 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
2772                                         skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2773                                         skinfileitem->next = skinfile->items;
2774                                         skinfile->items = skinfileitem;
2775                                         strlcpy (skinfileitem->name, word[1], sizeof (skinfileitem->name));
2776                                         strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2777                                 }
2778                                 else
2779                                         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]);
2780                         }
2781                         else if (words >= 2 && !strncmp(word[0], "tag_", 4))
2782                         {
2783                                 // tag name, like "tag_weapon,"
2784                                 // not used for anything (not even in Quake3)
2785                         }
2786                         else if (words >= 2 && !strcmp(word[1], ","))
2787                         {
2788                                 // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
2789                                 if (developer_loading.integer)
2790                                         Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
2791                                 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2792                                 skinfileitem->next = skinfile->items;
2793                                 skinfile->items = skinfileitem;
2794                                 strlcpy (skinfileitem->name, word[0], sizeof (skinfileitem->name));
2795                                 strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2796                         }
2797                         else
2798                                 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);
2799                 }
2800                 Mem_Free(text);
2801         }
2802         if (i)
2803                 loadmodel->numskins = i;
2804         return first;
2805 }
2806
2807 void Mod_FreeSkinFiles(skinfile_t *skinfile)
2808 {
2809         skinfile_t *next;
2810         skinfileitem_t *skinfileitem, *nextitem;
2811         for (;skinfile;skinfile = next)
2812         {
2813                 next = skinfile->next;
2814                 for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
2815                 {
2816                         nextitem = skinfileitem->next;
2817                         Mem_Free(skinfileitem);
2818                 }
2819                 Mem_Free(skinfile);
2820         }
2821 }
2822
2823 int Mod_CountSkinFiles(skinfile_t *skinfile)
2824 {
2825         int i;
2826         for (i = 0;skinfile;skinfile = skinfile->next, i++);
2827         return i;
2828 }
2829
2830 void Mod_SnapVertices(int numcomponents, int numvertices, float *vertices, float snap)
2831 {
2832         int i;
2833         double isnap = 1.0 / snap;
2834         for (i = 0;i < numvertices*numcomponents;i++)
2835                 vertices[i] = floor(vertices[i]*isnap)*snap;
2836 }
2837
2838 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
2839 {
2840         int i, outtriangles;
2841         float edgedir1[3], edgedir2[3], temp[3];
2842         // a degenerate triangle is one with no width (thickness, surface area)
2843         // these are characterized by having all 3 points colinear (along a line)
2844         // or having two points identical
2845         // the simplest check is to calculate the triangle's area
2846         for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
2847         {
2848                 // calculate first edge
2849                 VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir1);
2850                 VectorSubtract(vertex3f + inelement3i[2] * 3, vertex3f + inelement3i[0] * 3, edgedir2);
2851                 CrossProduct(edgedir1, edgedir2, temp);
2852                 if (VectorLength2(temp) < 0.001f)
2853                         continue; // degenerate triangle (no area)
2854                 // valid triangle (has area)
2855                 VectorCopy(inelement3i, outelement3i);
2856                 outelement3i += 3;
2857                 outtriangles++;
2858         }
2859         return outtriangles;
2860 }
2861
2862 void Mod_VertexRangeFromElements(int numelements, const int *elements, int *firstvertexpointer, int *lastvertexpointer)
2863 {
2864         int i, e;
2865         int firstvertex, lastvertex;
2866         if (numelements > 0 && elements)
2867         {
2868                 firstvertex = lastvertex = elements[0];
2869                 for (i = 1;i < numelements;i++)
2870                 {
2871                         e = elements[i];
2872                         firstvertex = min(firstvertex, e);
2873                         lastvertex = max(lastvertex, e);
2874                 }
2875         }
2876         else
2877                 firstvertex = lastvertex = 0;
2878         if (firstvertexpointer)
2879                 *firstvertexpointer = firstvertex;
2880         if (lastvertexpointer)
2881                 *lastvertexpointer = lastvertex;
2882 }
2883
2884 typedef struct Mod_MakeSortedSurfaces_qsortsurface_s
2885 {
2886         int submodel;
2887         int surfaceindex;
2888         q3deffect_t* effect;
2889         texture_t* texture;
2890         rtexture_t* lightmaptexture;
2891 }
2892 Mod_MakeSortedSurfaces_qsortsurface_t;
2893
2894 int Mod_MakeSortedSurfaces_qsortfunc(const void *a, const void *b)
2895 {
2896         const Mod_MakeSortedSurfaces_qsortsurface_t* l = (Mod_MakeSortedSurfaces_qsortsurface_t*)a;
2897         const Mod_MakeSortedSurfaces_qsortsurface_t* r = (Mod_MakeSortedSurfaces_qsortsurface_t*)b;
2898         if (l->submodel < r->submodel)
2899                 return -1;
2900         if (l->submodel > r->submodel)
2901                 return 1;
2902         if (l->effect < r->effect)
2903                 return -1;
2904         if (l->effect > r->effect)
2905                 return 1;
2906         if (l->texture < r->texture)
2907                 return -1;
2908         if (l->texture > r->texture)
2909                 return 1;
2910         if (l->lightmaptexture < r->lightmaptexture)
2911                 return -1;
2912         if (l->lightmaptexture > r->lightmaptexture)
2913                 return 1;
2914         if (l->surfaceindex < r->surfaceindex)
2915                 return -1;
2916         if (l->surfaceindex > r->surfaceindex)
2917                 return 1;
2918         return 0;
2919 }
2920
2921 void Mod_MakeSortedSurfaces(model_t *mod)
2922 {
2923         // make an optimal set of texture-sorted batches to draw...
2924         int j, k;
2925         Mod_MakeSortedSurfaces_qsortsurface_t *info = (Mod_MakeSortedSurfaces_qsortsurface_t*)R_FrameData_Alloc(mod->num_surfaces * sizeof(*info));
2926         if (!mod->modelsurfaces_sorted)
2927                 mod->modelsurfaces_sorted = (int *) Mem_Alloc(loadmodel->mempool, mod->num_surfaces * sizeof(*mod->modelsurfaces_sorted));
2928         // the goal is to sort by submodel (can't change which submodel a surface belongs to), and then by effects and textures
2929         for (j = 0; j < mod->num_surfaces; j++)
2930         {
2931                 info[j].submodel = 0;
2932                 info[j].surfaceindex = j;
2933                 info[j].effect = mod->data_surfaces[j].effect;
2934                 info[j].texture = mod->data_surfaces[j].texture;
2935                 info[j].lightmaptexture = mod->data_surfaces[j].lightmaptexture;
2936         }
2937         for (k = 0; k < mod->brush.numsubmodels; k++)
2938                 for (j = mod->brush.submodels[k]->submodelsurfaces_start; j < mod->brush.submodels[k]->submodelsurfaces_end; j++)
2939                         info[j].submodel = k;
2940         qsort(info, mod->num_surfaces, sizeof(*info), Mod_MakeSortedSurfaces_qsortfunc);
2941         for (j = 0; j < mod->num_surfaces; j++)
2942                 mod->modelsurfaces_sorted[j] = info[j].surfaceindex;
2943 }
2944
2945 void Mod_BuildVBOs(void)
2946 {
2947         if(cls.state == ca_dedicated)
2948                 return;
2949
2950         if (!loadmodel->surfmesh.num_vertices)
2951                 return;
2952
2953         if (gl_paranoid.integer && loadmodel->surfmesh.data_element3s && loadmodel->surfmesh.data_element3i)
2954         {
2955                 int i;
2956                 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2957                 {
2958                         if (loadmodel->surfmesh.data_element3s[i] != loadmodel->surfmesh.data_element3i[i])
2959                         {
2960                                 Con_Printf("Mod_BuildVBOs: element %u is incorrect (%u should be %u)\n", i, loadmodel->surfmesh.data_element3s[i], loadmodel->surfmesh.data_element3i[i]);
2961                                 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2962                         }
2963                 }
2964         }
2965
2966         // upload short indices as a buffer
2967         if (loadmodel->surfmesh.data_element3s && !loadmodel->surfmesh.data_element3s_indexbuffer)
2968                 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);
2969
2970         // upload int indices as a buffer
2971         if (loadmodel->surfmesh.data_element3i && !loadmodel->surfmesh.data_element3i_indexbuffer && !loadmodel->surfmesh.data_element3s)
2972                 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);
2973
2974         // only build a vbo if one has not already been created (this is important for brush models which load specially)
2975         // we put several vertex data streams in the same buffer
2976         if (!loadmodel->surfmesh.data_vertex3f_vertexbuffer)
2977         {
2978                 int size;
2979                 unsigned char *mem;
2980                 size = 0;
2981                 loadmodel->surfmesh.data_vertex3f_bufferoffset           = size;if (loadmodel->surfmesh.data_vertex3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2982                 loadmodel->surfmesh.data_svector3f_bufferoffset          = size;if (loadmodel->surfmesh.data_svector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2983                 loadmodel->surfmesh.data_tvector3f_bufferoffset          = size;if (loadmodel->surfmesh.data_tvector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2984                 loadmodel->surfmesh.data_normal3f_bufferoffset           = size;if (loadmodel->surfmesh.data_normal3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2985                 loadmodel->surfmesh.data_texcoordtexture2f_bufferoffset  = size;if (loadmodel->surfmesh.data_texcoordtexture2f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2986                 loadmodel->surfmesh.data_texcoordlightmap2f_bufferoffset = size;if (loadmodel->surfmesh.data_texcoordlightmap2f) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2987                 loadmodel->surfmesh.data_lightmapcolor4f_bufferoffset    = size;if (loadmodel->surfmesh.data_lightmapcolor4f   ) size += loadmodel->surfmesh.num_vertices * sizeof(float[4]);
2988                 loadmodel->surfmesh.data_skeletalindex4ub_bufferoffset   = size;if (loadmodel->surfmesh.data_skeletalindex4ub  ) size += loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]);
2989                 loadmodel->surfmesh.data_skeletalweight4ub_bufferoffset  = size;if (loadmodel->surfmesh.data_skeletalweight4ub ) size += loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]);
2990                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
2991                 if (loadmodel->surfmesh.data_vertex3f          ) memcpy(mem + loadmodel->surfmesh.data_vertex3f_bufferoffset          , loadmodel->surfmesh.data_vertex3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2992                 if (loadmodel->surfmesh.data_svector3f         ) memcpy(mem + loadmodel->surfmesh.data_svector3f_bufferoffset         , loadmodel->surfmesh.data_svector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2993                 if (loadmodel->surfmesh.data_tvector3f         ) memcpy(mem + loadmodel->surfmesh.data_tvector3f_bufferoffset         , loadmodel->surfmesh.data_tvector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2994                 if (loadmodel->surfmesh.data_normal3f          ) memcpy(mem + loadmodel->surfmesh.data_normal3f_bufferoffset          , loadmodel->surfmesh.data_normal3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2995                 if (loadmodel->surfmesh.data_texcoordtexture2f ) memcpy(mem + loadmodel->surfmesh.data_texcoordtexture2f_bufferoffset , loadmodel->surfmesh.data_texcoordtexture2f , loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2996                 if (loadmodel->surfmesh.data_texcoordlightmap2f) memcpy(mem + loadmodel->surfmesh.data_texcoordlightmap2f_bufferoffset, loadmodel->surfmesh.data_texcoordlightmap2f, loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2997                 if (loadmodel->surfmesh.data_lightmapcolor4f   ) memcpy(mem + loadmodel->surfmesh.data_lightmapcolor4f_bufferoffset   , loadmodel->surfmesh.data_lightmapcolor4f   , loadmodel->surfmesh.num_vertices * sizeof(float[4]));
2998                 if (loadmodel->surfmesh.data_skeletalindex4ub  ) memcpy(mem + loadmodel->surfmesh.data_skeletalindex4ub_bufferoffset  , loadmodel->surfmesh.data_skeletalindex4ub  , loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]));
2999                 if (loadmodel->surfmesh.data_skeletalweight4ub ) memcpy(mem + loadmodel->surfmesh.data_skeletalweight4ub_bufferoffset , loadmodel->surfmesh.data_skeletalweight4ub , loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]));
3000                 loadmodel->surfmesh.data_vertex3f_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, loadmodel->name, false, false, false, false);
3001                 loadmodel->surfmesh.data_svector3f_vertexbuffer = loadmodel->surfmesh.data_svector3f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
3002                 loadmodel->surfmesh.data_tvector3f_vertexbuffer = loadmodel->surfmesh.data_tvector3f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
3003                 loadmodel->surfmesh.data_normal3f_vertexbuffer = loadmodel->surfmesh.data_normal3f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
3004                 loadmodel->surfmesh.data_texcoordtexture2f_vertexbuffer = loadmodel->surfmesh.data_texcoordtexture2f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
3005                 loadmodel->surfmesh.data_texcoordlightmap2f_vertexbuffer = loadmodel->surfmesh.data_texcoordlightmap2f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
3006                 loadmodel->surfmesh.data_lightmapcolor4f_vertexbuffer = loadmodel->surfmesh.data_lightmapcolor4f ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
3007                 loadmodel->surfmesh.data_skeletalindex4ub_vertexbuffer = loadmodel->surfmesh.data_skeletalindex4ub ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
3008                 loadmodel->surfmesh.data_skeletalweight4ub_vertexbuffer = loadmodel->surfmesh.data_skeletalweight4ub ? loadmodel->surfmesh.data_vertex3f_vertexbuffer : NULL;
3009                 Mem_Free(mem);
3010         }
3011 }
3012
3013 extern cvar_t mod_obj_orientation;
3014 static void Mod_Decompile_OBJ(model_t *model, const char *filename, const char *mtlfilename, const char *originalfilename)
3015 {
3016         int submodelindex, vertexindex, surfaceindex, triangleindex, textureindex, countvertices = 0, countsurfaces = 0, countfaces = 0, counttextures = 0;
3017         int a, b, c;
3018         const char *texname;
3019         const int *e;
3020         const float *v, *vn, *vt;
3021         size_t l;
3022         size_t outbufferpos = 0;
3023         size_t outbuffermax = 0x100000;
3024         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3025         const msurface_t *surface;
3026         const int maxtextures = 256;
3027         char *texturenames = (char *) Z_Malloc(maxtextures * MAX_QPATH);
3028         model_t *submodel;
3029
3030         // construct the mtllib file
3031         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "# mtllib for %s exported by darkplaces engine\n", originalfilename);
3032         if (l > 0)
3033                 outbufferpos += l;
3034         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3035         {
3036                 countsurfaces++;
3037                 countvertices += surface->num_vertices;
3038                 countfaces += surface->num_triangles;
3039                 texname = (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default";
3040                 for (textureindex = 0;textureindex < counttextures;textureindex++)
3041                         if (!strcmp(texturenames + textureindex * MAX_QPATH, texname))
3042                                 break;
3043                 if (textureindex < counttextures)
3044                         continue; // already wrote this material entry
3045                 if (textureindex >= maxtextures)
3046                         continue; // just a precaution
3047                 textureindex = counttextures++;
3048                 strlcpy(texturenames + textureindex * MAX_QPATH, texname, MAX_QPATH);
3049                 if (outbufferpos >= outbuffermax >> 1)
3050                 {
3051                         outbuffermax *= 2;
3052                         oldbuffer = outbuffer;
3053                         outbuffer = (char *) Z_Malloc(outbuffermax);
3054                         memcpy(outbuffer, oldbuffer, outbufferpos);
3055                         Z_Free(oldbuffer);
3056                 }
3057                 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");
3058                 if (l > 0)
3059                         outbufferpos += l;
3060         }
3061
3062         // write the mtllib file
3063         FS_WriteFile(mtlfilename, outbuffer, outbufferpos);
3064
3065         // construct the obj file
3066         outbufferpos = 0;
3067         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);
3068         if (l > 0)
3069                 outbufferpos += l;
3070
3071         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)
3072         {
3073                 if (outbufferpos >= outbuffermax >> 1)
3074                 {
3075                         outbuffermax *= 2;
3076                         oldbuffer = outbuffer;
3077                         outbuffer = (char *) Z_Malloc(outbuffermax);
3078                         memcpy(outbuffer, oldbuffer, outbufferpos);
3079                         Z_Free(oldbuffer);
3080                 }
3081                 if(mod_obj_orientation.integer)
3082                         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]);
3083                 else
3084                         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]);
3085                 if (l > 0)
3086                         outbufferpos += l;
3087         }
3088
3089         for (submodelindex = 0;submodelindex < max(1, model->brush.numsubmodels);submodelindex++)
3090         {
3091                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "o %i\n", submodelindex);
3092                 if (l > 0)
3093                         outbufferpos += l;
3094                 submodel = model->brush.numsubmodels ? model->brush.submodels[submodelindex] : model;
3095                 for (surfaceindex = submodel->submodelsurfaces_start;surfaceindex < submodel->submodelsurfaces_end;surfaceindex++)
3096                 {
3097                         surface = model->data_surfaces + surfaceindex;
3098                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "usemtl %s\n", (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default");
3099                         if (l > 0)
3100                                 outbufferpos += l;
3101                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3102                         {
3103                                 if (outbufferpos >= outbuffermax >> 1)
3104                                 {
3105                                         outbuffermax *= 2;
3106                                         oldbuffer = outbuffer;
3107                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3108                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3109                                         Z_Free(oldbuffer);
3110                                 }
3111                                 a = e[0]+1;
3112                                 b = e[1]+1;
3113                                 c = e[2]+1;
3114                                 if(mod_obj_orientation.integer)
3115                                         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);
3116                                 else
3117                                         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);
3118                                 if (l > 0)
3119                                         outbufferpos += l;
3120                         }
3121                 }
3122         }
3123
3124         // write the obj file
3125         FS_WriteFile(filename, outbuffer, outbufferpos);
3126
3127         // clean up
3128         Z_Free(outbuffer);
3129         Z_Free(texturenames);
3130
3131         // print some stats
3132         Con_Printf("Wrote %s (%i bytes, %i vertices, %i faces, %i surfaces with %i distinct textures)\n", filename, (int)outbufferpos, countvertices, countfaces, countsurfaces, counttextures);
3133 }
3134
3135 static void Mod_Decompile_SMD(model_t *model, const char *filename, int firstpose, int numposes, qbool writetriangles)
3136 {
3137         int countnodes = 0, counttriangles = 0, countframes = 0;
3138         int surfaceindex;
3139         int triangleindex;
3140         int transformindex;
3141         int poseindex;
3142         int cornerindex;
3143         const int *e;
3144         size_t l;
3145         size_t outbufferpos = 0;
3146         size_t outbuffermax = 0x100000;
3147         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3148         const msurface_t *surface;
3149         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "version 1\nnodes\n");
3150         if (l > 0)
3151                 outbufferpos += l;
3152         for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3153         {
3154                 if (outbufferpos >= outbuffermax >> 1)
3155                 {
3156                         outbuffermax *= 2;
3157                         oldbuffer = outbuffer;
3158                         outbuffer = (char *) Z_Malloc(outbuffermax);
3159                         memcpy(outbuffer, oldbuffer, outbufferpos);
3160                         Z_Free(oldbuffer);
3161                 }
3162                 countnodes++;
3163                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i \"%s\" %3i\n", transformindex, model->data_bones[transformindex].name, model->data_bones[transformindex].parent);
3164                 if (l > 0)
3165                         outbufferpos += l;
3166         }
3167         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\nskeleton\n");
3168         if (l > 0)
3169                 outbufferpos += l;
3170         for (poseindex = 0;poseindex < numposes;poseindex++)
3171         {
3172                 countframes++;
3173                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "time %i\n", poseindex);
3174                 if (l > 0)
3175                         outbufferpos += l;
3176                 for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3177                 {
3178                         float angles[3];
3179                         float mtest[4][3];
3180                         matrix4x4_t posematrix;
3181                         if (outbufferpos >= outbuffermax >> 1)
3182                         {
3183                                 outbuffermax *= 2;
3184                                 oldbuffer = outbuffer;
3185                                 outbuffer = (char *) Z_Malloc(outbuffermax);
3186                                 memcpy(outbuffer, oldbuffer, outbufferpos);
3187                                 Z_Free(oldbuffer);
3188                         }
3189
3190                         // strangely the smd angles are for a transposed matrix, so we
3191                         // have to generate a transposed matrix, then convert that...
3192                         Matrix4x4_FromBonePose7s(&posematrix, model->num_posescale, model->data_poses7s + 7*(model->num_bones * poseindex + transformindex));
3193                         Matrix4x4_ToArray12FloatGL(&posematrix, mtest[0]);
3194                         AnglesFromVectors(angles, mtest[0], mtest[2], false);
3195                         if (angles[0] >= 180) angles[0] -= 360;
3196                         if (angles[1] >= 180) angles[1] -= 360;
3197                         if (angles[2] >= 180) angles[2] -= 360;
3198
3199 #if 0
3200 {
3201                         float a = DEG2RAD(angles[ROLL]);
3202                         float b = DEG2RAD(angles[PITCH]);
3203                         float c = DEG2RAD(angles[YAW]);
3204                         float cy, sy, cp, sp, cr, sr;
3205                         float test[4][3];
3206                         // smd matrix construction, for comparing
3207                         sy = sin(c);
3208                         cy = cos(c);
3209                         sp = sin(b);
3210                         cp = cos(b);
3211                         sr = sin(a);
3212                         cr = cos(a);
3213
3214                         test[0][0] = cp*cy;
3215                         test[0][1] = cp*sy;
3216                         test[0][2] = -sp;
3217                         test[1][0] = sr*sp*cy+cr*-sy;
3218                         test[1][1] = sr*sp*sy+cr*cy;
3219                         test[1][2] = sr*cp;
3220                         test[2][0] = (cr*sp*cy+-sr*-sy);
3221                         test[2][1] = (cr*sp*sy+-sr*cy);
3222                         test[2][2] = cr*cp;
3223                         test[3][0] = pose[9];
3224                         test[3][1] = pose[10];
3225                         test[3][2] = pose[11];
3226 }
3227 #endif
3228                         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]));
3229                         if (l > 0)
3230                                 outbufferpos += l;
3231                 }
3232         }
3233         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3234         if (l > 0)
3235                 outbufferpos += l;
3236         if (writetriangles)
3237         {
3238                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "triangles\n");
3239                 if (l > 0)
3240                         outbufferpos += l;
3241                 for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3242                 {
3243                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3244                         {
3245                                 counttriangles++;
3246                                 if (outbufferpos >= outbuffermax >> 1)
3247                                 {
3248                                         outbuffermax *= 2;
3249                                         oldbuffer = outbuffer;
3250                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3251                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3252                                         Z_Free(oldbuffer);
3253                                 }
3254                                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%s\n", surface->texture && surface->texture->name[0] ? surface->texture->name : "default.bmp");
3255                                 if (l > 0)
3256                                         outbufferpos += l;
3257                                 for (cornerindex = 0;cornerindex < 3;cornerindex++)
3258                                 {
3259                                         const int index = e[2-cornerindex];
3260                                         const float *v = model->surfmesh.data_vertex3f + index * 3;
3261                                         const float *vn = model->surfmesh.data_normal3f + index * 3;
3262                                         const float *vt = model->surfmesh.data_texcoordtexture2f + index * 2;
3263                                         const int b = model->surfmesh.blends[index];
3264                                         if (b < model->num_bones)
3265                                                 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]);
3266                                         else
3267                                         {
3268                                                 const blendweights_t *w = model->surfmesh.data_blendweights + b - model->num_bones;
3269                                                 const unsigned char *wi = w->index;
3270                                                 const unsigned char *wf = w->influence;
3271                                             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);
3272                                                 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);
3273                                                 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);
3274                                                 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]);
3275                                         }
3276                                         if (l > 0)
3277                                                 outbufferpos += l;
3278                                 }
3279                         }
3280                 }
3281                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3282                 if (l > 0)
3283                         outbufferpos += l;
3284         }
3285
3286         FS_WriteFile(filename, outbuffer, outbufferpos);
3287         Z_Free(outbuffer);
3288
3289         Con_Printf("Wrote %s (%i bytes, %i nodes, %i frames, %i triangles)\n", filename, (int)outbufferpos, countnodes, countframes, counttriangles);
3290 }
3291
3292 /*
3293 ================
3294 Mod_Decompile_f
3295
3296 decompiles a model to editable files
3297 ================
3298 */
3299 static void Mod_Decompile_f(cmd_state_t *cmd)
3300 {
3301         int i, j, k, l, first, count;
3302         model_t *mod;
3303         char inname[MAX_QPATH];
3304         char outname[MAX_QPATH];
3305         char mtlname[MAX_QPATH];
3306         char basename[MAX_QPATH];
3307         char animname[MAX_QPATH];
3308         char animname2[MAX_QPATH];
3309         char zymtextbuffer[16384];
3310         char dpmtextbuffer[16384];
3311         char framegroupstextbuffer[16384];
3312         int zymtextsize = 0;
3313         int dpmtextsize = 0;
3314         int framegroupstextsize = 0;
3315         char vabuf[1024];
3316
3317         if (Cmd_Argc(cmd) != 2)
3318         {
3319                 Con_Print("usage: modeldecompile <filename>\n");
3320                 return;
3321         }
3322
3323         strlcpy(inname, Cmd_Argv(cmd, 1), sizeof(inname));
3324         FS_StripExtension(inname, basename, sizeof(basename));
3325
3326         mod = Mod_ForName(inname, false, true, inname[0] == '*' ? cl.model_name[1] : NULL);
3327         if (!mod)
3328         {
3329                 Con_Print("No such model\n");
3330                 return;
3331         }
3332         if (mod->brush.submodel)
3333         {
3334                 // if we're decompiling a submodel, be sure to give it a proper name based on its parent
3335                 FS_StripExtension(cl.model_name[1], outname, sizeof(outname));
3336                 dpsnprintf(basename, sizeof(basename), "%s/%s", outname, mod->name);
3337                 outname[0] = 0;
3338         }
3339         if (!mod->surfmesh.num_triangles)
3340         {
3341                 Con_Print("Empty model (or sprite)\n");
3342                 return;
3343         }
3344
3345         // export OBJ if possible (not on sprites)
3346         if (mod->surfmesh.num_triangles)
3347         {
3348                 dpsnprintf(outname, sizeof(outname), "%s_decompiled.obj", basename);
3349                 dpsnprintf(mtlname, sizeof(mtlname), "%s_decompiled.mtl", basename);
3350                 Mod_Decompile_OBJ(mod, outname, mtlname, inname);
3351         }
3352
3353         // export SMD if possible (only for skeletal models)
3354         if (mod->surfmesh.num_triangles && mod->num_bones)
3355         {
3356                 dpsnprintf(outname, sizeof(outname), "%s_decompiled/ref1.smd", basename);
3357                 Mod_Decompile_SMD(mod, outname, 0, 1, true);
3358                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "output out.zym\nscale 1\norigin 0 0 0\nmesh ref1.smd\n");
3359                 if (l > 0) zymtextsize += l;
3360                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "outputdir .\nmodel out\nscale 1\norigin 0 0 0\nscene ref1.smd\n");
3361                 if (l > 0) dpmtextsize += l;
3362                 for (i = 0;i < mod->numframes;i = j)
3363                 {
3364                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3365                         first = mod->animscenes[i].firstframe;
3366                         if (mod->animscenes[i].framecount > 1)
3367                         {
3368                                 // framegroup anim
3369                                 count = mod->animscenes[i].framecount;
3370                                 j = i + 1;
3371                         }
3372                         else
3373                         {
3374                                 // individual frame
3375                                 // check for additional frames with same name
3376                                 for (l = 0, k = (int)strlen(animname);animname[l];l++)
3377                                         if(animname[l] < '0' || animname[l] > '9')
3378                                                 k = l + 1;
3379                                 if(k > 0 && animname[k-1] == '_')
3380                                         --k;
3381                                 animname[k] = 0;
3382                                 count = mod->num_poses - first;
3383                                 for (j = i + 1;j < mod->numframes;j++)
3384                                 {
3385                                         strlcpy(animname2, mod->animscenes[j].name, sizeof(animname2));
3386                                         for (l = 0, k = (int)strlen(animname2);animname2[l];l++)
3387                                                 if(animname2[l] < '0' || animname2[l] > '9')
3388                                                         k = l + 1;
3389                                         if(k > 0 && animname[k-1] == '_')
3390                                                 --k;
3391                                         animname2[k] = 0;
3392                                         if (strcmp(animname2, animname) || mod->animscenes[j].framecount > 1)
3393                                         {
3394                                                 count = mod->animscenes[j].firstframe - first;
3395                                                 break;
3396                                         }
3397                                 }
3398                                 // if it's only one frame, use the original frame name
3399                                 if (j == i + 1)
3400                                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3401
3402                         }
3403                         dpsnprintf(outname, sizeof(outname), "%s_decompiled/%s.smd", basename, animname);
3404                         Mod_Decompile_SMD(mod, outname, first, count, false);
3405                         if (zymtextsize < (int)sizeof(zymtextbuffer) - 100)
3406                         {
3407                                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3408                                 if (l > 0) zymtextsize += l;
3409                         }
3410                         if (dpmtextsize < (int)sizeof(dpmtextbuffer) - 100)
3411                         {
3412                                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3413                                 if (l > 0) dpmtextsize += l;
3414                         }
3415                         if (framegroupstextsize < (int)sizeof(framegroupstextbuffer) - 100)
3416                         {
3417                                 l = dpsnprintf(framegroupstextbuffer + framegroupstextsize, sizeof(framegroupstextbuffer) - framegroupstextsize, "%d %d %f %d // %s\n", first, count, mod->animscenes[i].framerate, mod->animscenes[i].loop, animname);
3418                                 if (l > 0) framegroupstextsize += l;
3419                         }
3420                 }
3421                 if (zymtextsize)
3422                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_zym.txt", basename), zymtextbuffer, (fs_offset_t)zymtextsize);
3423                 if (dpmtextsize)
3424                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_dpm.txt", basename), dpmtextbuffer, (fs_offset_t)dpmtextsize);
3425                 if (framegroupstextsize)
3426                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled.framegroups", basename), framegroupstextbuffer, (fs_offset_t)framegroupstextsize);
3427         }
3428 }
3429
3430 void Mod_AllocLightmap_Init(mod_alloclightmap_state_t *state, mempool_t *mempool, int width, int height)
3431 {
3432         int y;
3433         memset(state, 0, sizeof(*state));
3434         state->width = width;
3435         state->height = height;
3436         state->currentY = 0;
3437         state->rows = (mod_alloclightmap_row_t *)Mem_Alloc(mempool, state->height * sizeof(*state->rows));
3438         for (y = 0;y < state->height;y++)
3439         {
3440                 state->rows[y].currentX = 0;
3441                 state->rows[y].rowY = -1;
3442         }
3443 }
3444
3445 void Mod_AllocLightmap_Reset(mod_alloclightmap_state_t *state)
3446 {
3447         int y;
3448         state->currentY = 0;
3449         for (y = 0;y < state->height;y++)
3450         {
3451                 state->rows[y].currentX = 0;
3452                 state->rows[y].rowY = -1;
3453         }
3454 }
3455
3456 void Mod_AllocLightmap_Free(mod_alloclightmap_state_t *state)
3457 {
3458         if (state->rows)
3459                 Mem_Free(state->rows);
3460         memset(state, 0, sizeof(*state));
3461 }
3462
3463 qbool Mod_AllocLightmap_Block(mod_alloclightmap_state_t *state, int blockwidth, int blockheight, int *outx, int *outy)
3464 {
3465         mod_alloclightmap_row_t *row;
3466         int y;
3467
3468         row = state->rows + blockheight;
3469         if ((row->rowY < 0) || (row->currentX + blockwidth > state->width))
3470         {
3471                 if (state->currentY + blockheight <= state->height)
3472                 {
3473                         // use the current allocation position
3474                         row->rowY = state->currentY;
3475                         row->currentX = 0;
3476                         state->currentY += blockheight;
3477                 }
3478                 else
3479                 {
3480                         // find another position
3481                         for (y = blockheight;y < state->height;y++)
3482                         {
3483                                 if ((state->rows[y].rowY >= 0) && (state->rows[y].currentX + blockwidth <= state->width))
3484                                 {
3485                                         row = state->rows + y;
3486                                         break;
3487                                 }
3488                         }
3489                         if (y == state->height)
3490                                 return false;
3491                 }
3492         }
3493         *outy = row->rowY;
3494         *outx = row->currentX;
3495         row->currentX += blockwidth;
3496
3497         return true;
3498 }
3499
3500 typedef struct lightmapsample_s
3501 {
3502         float pos[3];
3503         float sh1[4][3];
3504         float *vertex_color;
3505         unsigned char *lm_bgr;
3506         unsigned char *lm_dir;
3507 }
3508 lightmapsample_t;
3509
3510 typedef struct lightmapvertex_s
3511 {
3512         int index;
3513         float pos[3];
3514         float normal[3];
3515         float texcoordbase[2];
3516         float texcoordlightmap[2];
3517         float lightcolor[4];
3518 }
3519 lightmapvertex_t;
3520
3521 typedef struct lightmaptriangle_s
3522 {
3523         int triangleindex;
3524         int surfaceindex;
3525         int lightmapindex;
3526         int axis;
3527         int lmoffset[2];
3528         int lmsize[2];
3529         // 2D modelspace coordinates of min corner
3530         // snapped to lightmap grid but not in grid coordinates
3531         float lmbase[2];
3532         // 2D modelspace to lightmap coordinate scale
3533         float lmscale[2];
3534         float vertex[3][3];
3535         float mins[3];
3536         float maxs[3];
3537 }
3538 lightmaptriangle_t;
3539
3540 typedef struct lightmaplight_s
3541 {
3542         float origin[3];
3543         float radius;
3544         float iradius;
3545         float radius2;
3546         float color[3];
3547         svbsp_t svbsp;
3548 }
3549 lightmaplight_t;
3550
3551 lightmaptriangle_t *mod_generatelightmaps_lightmaptriangles;
3552
3553 #define MAX_LIGHTMAPSAMPLES 64
3554 static int mod_generatelightmaps_numoffsets[3];
3555 static float mod_generatelightmaps_offsets[3][MAX_LIGHTMAPSAMPLES][3];
3556
3557 static int mod_generatelightmaps_numlights;
3558 static lightmaplight_t *mod_generatelightmaps_lightinfo;
3559
3560 extern cvar_t r_shadow_lightattenuationdividebias;
3561 extern cvar_t r_shadow_lightattenuationlinearscale;
3562
3563 static void Mod_GenerateLightmaps_LightPoint(model_t *model, const vec3_t pos, vec3_t ambient, vec3_t diffuse, vec3_t lightdir)
3564 {
3565         int i;
3566         int index;
3567         int result;
3568         float relativepoint[3];
3569         float color[3];
3570         float dir[3];
3571         float dist;
3572         float dist2;
3573         float intensity;
3574         float sample[5*3];
3575         float lightorigin[3];
3576         float lightradius;
3577         float lightradius2;
3578         float lightiradius;
3579         float lightcolor[3];
3580         trace_t trace;
3581         for (i = 0;i < 5*3;i++)
3582                 sample[i] = 0.0f;
3583         for (index = 0;;index++)
3584         {
3585                 result = R_Shadow_GetRTLightInfo(index, lightorigin, &lightradius, lightcolor);
3586                 if (result < 0)
3587                         break;
3588                 if (result == 0)
3589                         continue;
3590                 lightradius2 = lightradius * lightradius;
3591                 VectorSubtract(lightorigin, pos, relativepoint);
3592                 dist2 = VectorLength2(relativepoint);
3593                 if (dist2 >= lightradius2)
3594                         continue;
3595                 lightiradius = 1.0f / lightradius;
3596                 dist = sqrt(dist2) * lightiradius;
3597                 intensity = (1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist);
3598                 if (intensity <= 0.0f)
3599                         continue;
3600                 if (model && model->TraceLine)
3601                 {
3602                         model->TraceLine(model, NULL, NULL, &trace, pos, lightorigin, SUPERCONTENTS_SOLID, 0, MATERIALFLAGMASK_TRANSLUCENT | MATERIALFLAG_NOSHADOW);
3603                         if (trace.fraction < 1)
3604                                 continue;
3605                 }
3606                 // scale down intensity to add to both ambient and diffuse
3607                 //intensity *= 0.5f;
3608                 VectorNormalize(relativepoint);
3609                 VectorScale(lightcolor, intensity, color);
3610                 VectorMA(sample    , 0.5f            , color, sample    );
3611                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3612                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3613                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3614                 // calculate a weighted average light direction as well
3615                 intensity *= VectorLength(color);
3616                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3617         }
3618         // calculate the direction we'll use to reduce the sample to a directional light source
3619         VectorCopy(sample + 12, dir);
3620         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3621         VectorNormalize(dir);
3622         // extract the diffuse color along the chosen direction and scale it
3623         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]);
3624         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]);
3625         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]);
3626         // subtract some of diffuse from ambient
3627         VectorMA(sample, -0.333f, diffuse, ambient);
3628         // store the normalized lightdir
3629         VectorCopy(dir, lightdir);
3630 }
3631
3632 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(const model_t *model, svbsp_t *svbsp, const float *mins, const float *maxs)
3633 {
3634         int surfaceindex;
3635         int triangleindex;
3636         const msurface_t *surface;
3637         const float *vertex3f = model->surfmesh.data_vertex3f;
3638         const int *element3i = model->surfmesh.data_element3i;
3639         const int *e;
3640         float v2[3][3];
3641         for (surfaceindex = model->submodelsurfaces_start;surfaceindex < model->submodelsurfaces_end;surfaceindex++)
3642         {
3643                 surface = model->data_surfaces + surfaceindex;
3644                 if (!BoxesOverlap(surface->mins, surface->maxs, mins, maxs))
3645                         continue;
3646                 if (surface->texture->basematerialflags & MATERIALFLAG_NOSHADOW)
3647                         continue;
3648                 for (triangleindex = 0, e = element3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3649                 {
3650                         VectorCopy(vertex3f + 3*e[0], v2[0]);
3651                         VectorCopy(vertex3f + 3*e[1], v2[1]);
3652                         VectorCopy(vertex3f + 3*e[2], v2[2]);
3653                         SVBSP_AddPolygon(svbsp, 3, v2[0], true, NULL, NULL, 0);
3654                 }
3655         }
3656 }
3657
3658 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(model_t *model, lightmaplight_t *lightinfo)
3659 {
3660         int maxnodes = 1<<14;
3661         svbsp_node_t *nodes;
3662         float origin[3];
3663         float mins[3];
3664         float maxs[3];
3665         svbsp_t svbsp;
3666         VectorSet(mins, lightinfo->origin[0] - lightinfo->radius, lightinfo->origin[1] - lightinfo->radius, lightinfo->origin[2] - lightinfo->radius);
3667         VectorSet(maxs, lightinfo->origin[0] + lightinfo->radius, lightinfo->origin[1] + lightinfo->radius, lightinfo->origin[2] + lightinfo->radius);
3668         VectorCopy(lightinfo->origin, origin);
3669         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3670         for (;;)
3671         {
3672                 SVBSP_Init(&svbsp, origin, maxnodes, nodes);
3673                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(model, &svbsp, mins, maxs);
3674                 if (svbsp.ranoutofnodes)
3675                 {
3676                         maxnodes *= 16;
3677                         if (maxnodes > 1<<22)
3678                         {
3679                                 Mem_Free(nodes);
3680                                 return;
3681                         }
3682                         Mem_Free(nodes);
3683                         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3684                 }
3685                 else
3686                         break;
3687         }
3688         if (svbsp.numnodes > 0)
3689         {
3690                 svbsp.nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, svbsp.numnodes * sizeof(*nodes));
3691                 memcpy(svbsp.nodes, nodes, svbsp.numnodes * sizeof(*nodes));
3692                 lightinfo->svbsp = svbsp;
3693         }
3694         Mem_Free(nodes);
3695 }
3696
3697 static void Mod_GenerateLightmaps_CreateLights(model_t *model)
3698 {
3699         int index;
3700         int result;
3701         lightmaplight_t *lightinfo;
3702         float origin[3];
3703         float radius;
3704         float color[3];
3705         mod_generatelightmaps_numlights = 0;
3706         for (index = 0;;index++)
3707         {
3708                 result = R_Shadow_GetRTLightInfo(index, origin, &radius, color);
3709                 if (result < 0)
3710                         break;
3711                 if (result > 0)
3712                         mod_generatelightmaps_numlights++;
3713         }
3714         if (mod_generatelightmaps_numlights > 0)
3715         {
3716                 mod_generatelightmaps_lightinfo = (lightmaplight_t *)Mem_Alloc(tempmempool, mod_generatelightmaps_numlights * sizeof(*mod_generatelightmaps_lightinfo));
3717                 lightinfo = mod_generatelightmaps_lightinfo;
3718                 for (index = 0;;index++)
3719                 {
3720                         result = R_Shadow_GetRTLightInfo(index, lightinfo->origin, &lightinfo->radius, lightinfo->color);
3721                         if (result < 0)
3722                                 break;
3723                         if (result > 0)
3724                                 lightinfo++;
3725                 }
3726         }
3727         for (index = 0, lightinfo = mod_generatelightmaps_lightinfo;index < mod_generatelightmaps_numlights;index++, lightinfo++)
3728         {
3729                 lightinfo->iradius = 1.0f / lightinfo->radius;
3730                 lightinfo->radius2 = lightinfo->radius * lightinfo->radius;
3731                 // TODO: compute svbsp
3732                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(model, lightinfo);
3733         }
3734 }
3735
3736 static void Mod_GenerateLightmaps_DestroyLights(model_t *model)
3737 {
3738         int i;
3739         if (mod_generatelightmaps_lightinfo)
3740         {
3741                 for (i = 0;i < mod_generatelightmaps_numlights;i++)
3742                         if (mod_generatelightmaps_lightinfo[i].svbsp.nodes)
3743                                 Mem_Free(mod_generatelightmaps_lightinfo[i].svbsp.nodes);
3744                 Mem_Free(mod_generatelightmaps_lightinfo);
3745         }
3746         mod_generatelightmaps_lightinfo = NULL;
3747         mod_generatelightmaps_numlights = 0;
3748 }
3749
3750 static qbool Mod_GenerateLightmaps_SamplePoint_SVBSP(const svbsp_t *svbsp, const float *pos)
3751 {
3752         const svbsp_node_t *node;
3753         const svbsp_node_t *nodes = svbsp->nodes;
3754         int num = 0;
3755         while (num >= 0)
3756         {
3757                 node = nodes + num;
3758                 num = node->children[DotProduct(node->plane, pos) < node->plane[3]];
3759         }
3760         return num == -1; // true if empty, false if solid (shadowed)
3761 }
3762
3763 static void Mod_GenerateLightmaps_SamplePoint(const float *pos, const float *normal, float *sample, int numoffsets, const float *offsets)
3764 {
3765         int i;
3766         float relativepoint[3];
3767         float color[3];
3768         float offsetpos[3];
3769         float dist;
3770         float dist2;
3771         float intensity;
3772         int offsetindex;
3773         int hits;
3774         int tests;
3775         const lightmaplight_t *lightinfo;
3776         trace_t trace;
3777         for (i = 0;i < 5*3;i++)
3778                 sample[i] = 0.0f;
3779         for (i = 0, lightinfo = mod_generatelightmaps_lightinfo;i < mod_generatelightmaps_numlights;i++, lightinfo++)
3780         {
3781                 //R_SampleRTLights(pos, sample, numoffsets, offsets);
3782                 VectorSubtract(lightinfo->origin, pos, relativepoint);
3783                 // don't accept light from behind a surface, it causes bad shading
3784                 if (normal && DotProduct(relativepoint, normal) <= 0)
3785                         continue;
3786                 dist2 = VectorLength2(relativepoint);
3787                 if (dist2 >= lightinfo->radius2)
3788                         continue;
3789                 dist = sqrt(dist2) * lightinfo->iradius;
3790                 intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
3791                 if (intensity <= 0)
3792                         continue;
3793                 if (cl.worldmodel && cl.worldmodel->TraceLine && numoffsets > 0)
3794                 {
3795                         hits = 0;
3796                         tests = 1;
3797                         if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, pos))
3798                                 hits++;
3799                         for (offsetindex = 1;offsetindex < numoffsets;offsetindex++)
3800                         {
3801                                 VectorAdd(pos, offsets + 3*offsetindex, offsetpos);
3802                                 if (!normal)
3803                                 {
3804                                         // for light grid we'd better check visibility of the offset point
3805                                         cl.worldmodel->TraceLine(cl.worldmodel, NULL, NULL, &trace, pos, offsetpos, SUPERCONTENTS_SOLID, 0, MATERIALFLAGMASK_TRANSLUCENT | MATERIALFLAG_NOSHADOW);
3806                                         if (trace.fraction < 1)
3807                                                 VectorLerp(pos, trace.fraction, offsetpos, offsetpos);
3808                                 }
3809                                 tests++;
3810                                 if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, offsetpos))
3811                                         hits++;
3812                         }
3813                         if (!hits)
3814                                 continue;
3815                         // scale intensity according to how many rays succeeded
3816                         // we know one test is valid, half of the rest will fail...
3817                         //if (normal && tests > 1)
3818                         //      intensity *= (tests - 1.0f) / tests;
3819                         intensity *= (float)hits / tests;
3820                 }
3821                 // scale down intensity to add to both ambient and diffuse
3822                 //intensity *= 0.5f;
3823                 VectorNormalize(relativepoint);
3824                 VectorScale(lightinfo->color, intensity, color);
3825                 VectorMA(sample    , 0.5f            , color, sample    );
3826                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3827                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3828                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3829                 // calculate a weighted average light direction as well
3830                 intensity *= VectorLength(color);
3831                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3832         }
3833 }
3834
3835 static void Mod_GenerateLightmaps_LightmapSample(const float *pos, const float *normal, unsigned char *lm_bgr, unsigned char *lm_dir)
3836 {
3837         float sample[5*3];
3838         float color[3];
3839         float dir[3];
3840         float f;
3841         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[0], mod_generatelightmaps_offsets[0][0]);
3842         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3843         VectorCopy(sample + 12, dir);
3844         VectorNormalize(dir);
3845         //VectorAdd(dir, normal, dir);
3846         //VectorNormalize(dir);
3847         f = DotProduct(dir, normal);
3848         f = max(0, f) * 255.0f;
3849         VectorScale(sample, f, color);
3850         //VectorCopy(normal, dir);
3851         VectorSet(dir, (dir[0]+1.0f)*127.5f, (dir[1]+1.0f)*127.5f, (dir[2]+1.0f)*127.5f);
3852         lm_bgr[0] = (unsigned char)bound(0.0f, color[2], 255.0f);
3853         lm_bgr[1] = (unsigned char)bound(0.0f, color[1], 255.0f);
3854         lm_bgr[2] = (unsigned char)bound(0.0f, color[0], 255.0f);
3855         lm_bgr[3] = 255;
3856         lm_dir[0] = (unsigned char)dir[2];
3857         lm_dir[1] = (unsigned char)dir[1];
3858         lm_dir[2] = (unsigned char)dir[0];
3859         lm_dir[3] = 255;
3860 }
3861
3862 static void Mod_GenerateLightmaps_VertexSample(const float *pos, const float *normal, float *vertex_color)
3863 {
3864         float sample[5*3];
3865         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[1], mod_generatelightmaps_offsets[1][0]);
3866         VectorCopy(sample, vertex_color);
3867 }
3868
3869 static void Mod_GenerateLightmaps_GridSample(const float *pos, q3dlightgrid_t *s)
3870 {
3871         float sample[5*3];
3872         float ambient[3];
3873         float diffuse[3];
3874         float dir[3];
3875         Mod_GenerateLightmaps_SamplePoint(pos, NULL, sample, mod_generatelightmaps_numoffsets[2], mod_generatelightmaps_offsets[2][0]);
3876         // calculate the direction we'll use to reduce the sample to a directional light source
3877         VectorCopy(sample + 12, dir);
3878         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3879         VectorNormalize(dir);
3880         // extract the diffuse color along the chosen direction and scale it
3881         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]) * 127.5f;
3882         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]) * 127.5f;
3883         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]) * 127.5f;
3884         // scale the ambient from 0-2 to 0-255 and subtract some of diffuse
3885         VectorScale(sample, 127.5f, ambient);
3886         VectorMA(ambient, -0.333f, diffuse, ambient);
3887         // encode to the grid format
3888         s->ambientrgb[0] = (unsigned char)bound(0.0f, ambient[0], 255.0f);
3889         s->ambientrgb[1] = (unsigned char)bound(0.0f, ambient[1], 255.0f);
3890         s->ambientrgb[2] = (unsigned char)bound(0.0f, ambient[2], 255.0f);
3891         s->diffusergb[0] = (unsigned char)bound(0.0f, diffuse[0], 255.0f);
3892         s->diffusergb[1] = (unsigned char)bound(0.0f, diffuse[1], 255.0f);
3893         s->diffusergb[2] = (unsigned char)bound(0.0f, diffuse[2], 255.0f);
3894         if (dir[2] >= 0.99f) {s->diffusepitch = 0;s->diffuseyaw = 0;}
3895         else if (dir[2] <= -0.99f) {s->diffusepitch = 128;s->diffuseyaw = 0;}
3896         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));}
3897 }
3898
3899 static void Mod_GenerateLightmaps_InitSampleOffsets(model_t *model)
3900 {
3901         float radius[3];
3902         float temp[3];
3903         int i, j;
3904         memset(mod_generatelightmaps_offsets, 0, sizeof(mod_generatelightmaps_offsets));
3905         mod_generatelightmaps_numoffsets[0] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_lightmapsamples.integer);
3906         mod_generatelightmaps_numoffsets[1] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_vertexsamples.integer);
3907         mod_generatelightmaps_numoffsets[2] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_gridsamples.integer);
3908         radius[0] = mod_generatelightmaps_lightmapradius.value;
3909         radius[1] = mod_generatelightmaps_vertexradius.value;
3910         radius[2] = mod_generatelightmaps_gridradius.value;
3911         for (i = 0;i < 3;i++)
3912         {
3913                 for (j = 1;j < mod_generatelightmaps_numoffsets[i];j++)
3914                 {
3915                         VectorRandom(temp);
3916                         VectorScale(temp, radius[i], mod_generatelightmaps_offsets[i][j]);
3917                 }
3918         }
3919 }
3920
3921 static void Mod_GenerateLightmaps_DestroyLightmaps(model_t *model)
3922 {
3923         msurface_t *surface;
3924         int surfaceindex;
3925         int i;
3926         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3927         {
3928                 surface = model->data_surfaces + surfaceindex;
3929                 surface->lightmaptexture = NULL;
3930                 surface->deluxemaptexture = NULL;
3931         }
3932         if (model->brushq3.data_lightmaps)
3933         {
3934                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3935                         if (model->brushq3.data_lightmaps[i])
3936                                 R_FreeTexture(model->brushq3.data_lightmaps[i]);
3937                 Mem_Free(model->brushq3.data_lightmaps);
3938                 model->brushq3.data_lightmaps = NULL;
3939         }
3940         if (model->brushq3.data_deluxemaps)
3941         {
3942                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3943                         if (model->brushq3.data_deluxemaps[i])
3944                                 R_FreeTexture(model->brushq3.data_deluxemaps[i]);
3945                 Mem_Free(model->brushq3.data_deluxemaps);
3946                 model->brushq3.data_deluxemaps = NULL;
3947         }
3948 }
3949
3950 static void Mod_GenerateLightmaps_UnweldTriangles(model_t *model)
3951 {
3952         msurface_t *surface;
3953         int surfaceindex;
3954         int vertexindex;
3955         int outvertexindex;
3956         int i;
3957         const int *e;
3958         surfmesh_t oldsurfmesh;
3959         size_t size;
3960         unsigned char *data;
3961         oldsurfmesh = model->surfmesh;
3962         model->surfmesh.num_triangles = oldsurfmesh.num_triangles;
3963         model->surfmesh.num_vertices = oldsurfmesh.num_triangles * 3;
3964         size = 0;
3965         size += model->surfmesh.num_vertices * sizeof(float[3]);
3966         size += model->surfmesh.num_vertices * sizeof(float[3]);
3967         size += model->surfmesh.num_vertices * sizeof(float[3]);
3968         size += model->surfmesh.num_vertices * sizeof(float[3]);
3969         size += model->surfmesh.num_vertices * sizeof(float[2]);
3970         size += model->surfmesh.num_vertices * sizeof(float[2]);
3971         size += model->surfmesh.num_vertices * sizeof(float[4]);
3972         data = (unsigned char *)Mem_Alloc(model->mempool, size);
3973         model->surfmesh.data_vertex3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3974         model->surfmesh.data_normal3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3975         model->surfmesh.data_svector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3976         model->surfmesh.data_tvector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3977         model->surfmesh.data_texcoordtexture2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
3978         model->surfmesh.data_texcoordlightmap2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
3979         model->surfmesh.data_lightmapcolor4f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[4]);
3980         if (model->surfmesh.num_vertices > 65536)
3981                 model->surfmesh.data_element3s = NULL;
3982
3983         if (model->surfmesh.data_element3i_indexbuffer && !model->surfmesh.data_element3i_indexbuffer->isdynamic)
3984                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3i_indexbuffer);
3985         model->surfmesh.data_element3i_indexbuffer = NULL;
3986         if (model->surfmesh.data_element3s_indexbuffer && !model->surfmesh.data_element3s_indexbuffer->isdynamic)
3987                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3s_indexbuffer);
3988         model->surfmesh.data_element3s_indexbuffer = NULL;
3989         if (model->surfmesh.data_vertex3f_vertexbuffer && !model->surfmesh.data_vertex3f_vertexbuffer->isdynamic)
3990                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_vertex3f_vertexbuffer);
3991         model->surfmesh.data_vertex3f_vertexbuffer = NULL;
3992         model->surfmesh.data_svector3f_vertexbuffer = NULL;
3993         model->surfmesh.data_tvector3f_vertexbuffer = NULL;
3994         model->surfmesh.data_normal3f_vertexbuffer = NULL;
3995         model->surfmesh.data_texcoordtexture2f_vertexbuffer = NULL;
3996         model->surfmesh.data_texcoordlightmap2f_vertexbuffer = NULL;
3997         model->surfmesh.data_lightmapcolor4f_vertexbuffer = NULL;
3998         model->surfmesh.data_skeletalindex4ub_vertexbuffer = NULL;
3999         model->surfmesh.data_skeletalweight4ub_vertexbuffer = NULL;
4000
4001         // convert all triangles to unique vertex data
4002         outvertexindex = 0;
4003         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4004         {
4005                 surface = model->data_surfaces + surfaceindex;
4006                 surface->num_firstvertex = outvertexindex;
4007                 surface->num_vertices = surface->num_triangles*3;
4008                 e = oldsurfmesh.data_element3i + surface->num_firsttriangle*3;
4009                 for (i = 0;i < surface->num_triangles*3;i++)
4010                 {
4011                         vertexindex = e[i];
4012                         model->surfmesh.data_vertex3f[outvertexindex*3+0] = oldsurfmesh.data_vertex3f[vertexindex*3+0];
4013                         model->surfmesh.data_vertex3f[outvertexindex*3+1] = oldsurfmesh.data_vertex3f[vertexindex*3+1];
4014                         model->surfmesh.data_vertex3f[outvertexindex*3+2] = oldsurfmesh.data_vertex3f[vertexindex*3+2];
4015                         model->surfmesh.data_normal3f[outvertexindex*3+0] = oldsurfmesh.data_normal3f[vertexindex*3+0];
4016                         model->surfmesh.data_normal3f[outvertexindex*3+1] = oldsurfmesh.data_normal3f[vertexindex*3+1];
4017                         model->surfmesh.data_normal3f[outvertexindex*3+2] = oldsurfmesh.data_normal3f[vertexindex*3+2];
4018                         model->surfmesh.data_svector3f[outvertexindex*3+0] = oldsurfmesh.data_svector3f[vertexindex*3+0];
4019                         model->surfmesh.data_svector3f[outvertexindex*3+1] = oldsurfmesh.data_svector3f[vertexindex*3+1];
4020                         model->surfmesh.data_svector3f[outvertexindex*3+2] = oldsurfmesh.data_svector3f[vertexindex*3+2];
4021                         model->surfmesh.data_tvector3f[outvertexindex*3+0] = oldsurfmesh.data_tvector3f[vertexindex*3+0];
4022                         model->surfmesh.data_tvector3f[outvertexindex*3+1] = oldsurfmesh.data_tvector3f[vertexindex*3+1];
4023                         model->surfmesh.data_tvector3f[outvertexindex*3+2] = oldsurfmesh.data_tvector3f[vertexindex*3+2];
4024                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+0];
4025                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+1];
4026                         if (oldsurfmesh.data_texcoordlightmap2f)
4027                         {
4028                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+0];
4029                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+1];
4030                         }
4031                         if (oldsurfmesh.data_lightmapcolor4f)
4032                         {
4033                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+0] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+0];
4034                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+1] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+1];
4035                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+2] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+2];
4036                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+3] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+3];
4037                         }
4038                         else
4039                                 Vector4Set(model->surfmesh.data_lightmapcolor4f + 4*outvertexindex, 1, 1, 1, 1);
4040                         model->surfmesh.data_element3i[surface->num_firsttriangle*3+i] = outvertexindex;
4041                         outvertexindex++;
4042                 }
4043         }
4044         if (model->surfmesh.data_element3s)
4045                 for (i = 0;i < model->surfmesh.num_triangles*3;i++)
4046                         model->surfmesh.data_element3s[i] = model->surfmesh.data_element3i[i];
4047
4048         // find and update all submodels to use this new surfmesh data
4049         for (i = 0;i < model->brush.numsubmodels;i++)
4050                 model->brush.submodels[i]->surfmesh = model->surfmesh;
4051 }
4052
4053 static void Mod_GenerateLightmaps_CreateTriangleInformation(model_t *model)
4054 {
4055         msurface_t *surface;
4056         int surfaceindex;
4057         int i;
4058         int axis;
4059         float normal[3];
4060         const int *e;
4061         lightmaptriangle_t *triangle;
4062         // generate lightmap triangle structs
4063         mod_generatelightmaps_lightmaptriangles = (lightmaptriangle_t *)Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4064         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4065         {
4066                 surface = model->data_surfaces + surfaceindex;
4067                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4068                 for (i = 0;i < surface->num_triangles;i++)
4069                 {
4070                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4071                         triangle->triangleindex = surface->num_firsttriangle+i;
4072                         triangle->surfaceindex = surfaceindex;
4073                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+0], triangle->vertex[0]);
4074                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+1], triangle->vertex[1]);
4075                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+2], triangle->vertex[2]);
4076                         // calculate bounds of triangle
4077                         triangle->mins[0] = min(triangle->vertex[0][0], min(triangle->vertex[1][0], triangle->vertex[2][0]));
4078                         triangle->mins[1] = min(triangle->vertex[0][1], min(triangle->vertex[1][1], triangle->vertex[2][1]));
4079                         triangle->mins[2] = min(triangle->vertex[0][2], min(triangle->vertex[1][2], triangle->vertex[2][2]));
4080                         triangle->maxs[0] = max(triangle->vertex[0][0], max(triangle->vertex[1][0], triangle->vertex[2][0]));
4081                         triangle->maxs[1] = max(triangle->vertex[0][1], max(triangle->vertex[1][1], triangle->vertex[2][1]));
4082                         triangle->maxs[2] = max(triangle->vertex[0][2], max(triangle->vertex[1][2], triangle->vertex[2][2]));
4083                         // pick an axial projection based on the triangle normal
4084                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], normal);
4085                         axis = 0;
4086                         if (fabs(normal[1]) > fabs(normal[axis]))
4087                                 axis = 1;
4088                         if (fabs(normal[2]) > fabs(normal[axis]))
4089                                 axis = 2;
4090                         triangle->axis = axis;
4091                 }
4092         }
4093 }
4094
4095 static void Mod_GenerateLightmaps_DestroyTriangleInformation(model_t *model)
4096 {
4097         if (mod_generatelightmaps_lightmaptriangles)
4098                 Mem_Free(mod_generatelightmaps_lightmaptriangles);
4099         mod_generatelightmaps_lightmaptriangles = NULL;
4100 }
4101
4102 float lmaxis[3][3] = {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}};
4103
4104 static void Mod_GenerateLightmaps_CreateLightmaps(model_t *model)
4105 {
4106         msurface_t *surface;
4107         int surfaceindex;
4108         int lightmapindex;
4109         int lightmapnumber;
4110         int i;
4111         int j;
4112         int k;
4113         int x;
4114         int y;
4115         int axis;
4116         int axis1;
4117         int axis2;
4118         int retry;
4119         int pixeloffset;
4120         float trianglenormal[3];
4121         float samplecenter[3];
4122         float samplenormal[3];
4123         float temp[3];
4124         float lmiscale[2];
4125         float slopex;
4126         float slopey;
4127         float slopebase;
4128         float lmscalepixels;
4129         float lmmins;
4130         float lmmaxs;
4131         float lm_basescalepixels;
4132         int lm_borderpixels;
4133         int lm_texturesize;
4134         //int lm_maxpixels;
4135         const int *e;
4136         lightmaptriangle_t *triangle;
4137         unsigned char *lightmappixels;
4138         unsigned char *deluxemappixels;
4139         mod_alloclightmap_state_t lmstate;
4140         char vabuf[1024];
4141
4142         // generate lightmap projection information for all triangles
4143         if (model->texturepool == NULL)
4144                 model->texturepool = R_AllocTexturePool();
4145         lm_basescalepixels = 1.0f / max(0.0001f, mod_generatelightmaps_unitspersample.value);
4146         lm_borderpixels = mod_generatelightmaps_borderpixels.integer;
4147         lm_texturesize = bound(lm_borderpixels*2+1, 64, (int)vid.maxtexturesize_2d);
4148         //lm_maxpixels = lm_texturesize-(lm_borderpixels*2+1);
4149         Mod_AllocLightmap_Init(&lmstate, loadmodel->mempool, lm_texturesize, lm_texturesize);
4150         lightmapnumber = 0;
4151         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4152         {
4153                 surface = model->data_surfaces + surfaceindex;
4154                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4155                 lmscalepixels = lm_basescalepixels;
4156                 for (retry = 0;retry < 30;retry++)
4157                 {
4158                         // after a couple failed attempts, degrade quality to make it fit
4159                         if (retry > 1)
4160                                 lmscalepixels *= 0.5f;
4161                         for (i = 0;i < surface->num_triangles;i++)
4162                         {
4163                                 triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4164                                 triangle->lightmapindex = lightmapnumber;
4165                                 // calculate lightmap bounds in 3D pixel coordinates, limit size,
4166                                 // pick two planar axes for projection
4167                                 // lightmap coordinates here are in pixels
4168                                 // lightmap projections are snapped to pixel grid explicitly, such
4169                                 // that two neighboring triangles sharing an edge and projection
4170                                 // axis will have identical sample spacing along their shared edge
4171                                 k = 0;
4172                                 for (j = 0;j < 3;j++)
4173                                 {
4174                                         if (j == triangle->axis)
4175                                                 continue;
4176                                         lmmins = floor(triangle->mins[j]*lmscalepixels)-lm_borderpixels;
4177                                         lmmaxs = floor(triangle->maxs[j]*lmscalepixels)+lm_borderpixels;
4178                                         triangle->lmsize[k] = (int)(lmmaxs-lmmins);
4179                                         triangle->lmbase[k] = lmmins/lmscalepixels;
4180                                         triangle->lmscale[k] = lmscalepixels;
4181                                         k++;
4182                                 }
4183                                 if (!Mod_AllocLightmap_Block(&lmstate, triangle->lmsize[0], triangle->lmsize[1], &triangle->lmoffset[0], &triangle->lmoffset[1]))
4184                                         break;
4185                         }
4186                         // if all fit in this texture, we're done with this surface
4187                         if (i == surface->num_triangles)
4188                                 break;
4189                         // if we haven't maxed out the lightmap size yet, we retry the
4190                         // entire surface batch...
4191                         if (lm_texturesize * 2 <= min(mod_generatelightmaps_texturesize.integer, (int)vid.maxtexturesize_2d))
4192                         {
4193                                 lm_texturesize *= 2;
4194                                 surfaceindex = -1;
4195                                 lightmapnumber = 0;
4196                                 Mod_AllocLightmap_Free(&lmstate);
4197                                 Mod_AllocLightmap_Init(&lmstate, loadmodel->mempool, lm_texturesize, lm_texturesize);
4198                                 break;
4199                         }
4200                         // if we have maxed out the lightmap size, and this triangle does
4201                         // not fit in the same texture as the rest of the surface, we have
4202                         // to retry the entire surface in a new texture (can only use one)
4203                         // with multiple retries, the lightmap quality degrades until it
4204                         // fits (or gives up)
4205                         if (surfaceindex > 0)
4206                                 lightmapnumber++;
4207                         Mod_AllocLightmap_Reset(&lmstate);
4208                 }
4209         }
4210         lightmapnumber++;
4211         Mod_AllocLightmap_Free(&lmstate);
4212
4213         // now put triangles together into lightmap textures, and do not allow
4214         // triangles of a surface to go into different textures (as that would
4215         // require rewriting the surface list)
4216         model->brushq3.deluxemapping_modelspace = true;
4217         model->brushq3.deluxemapping = true;
4218         model->brushq3.num_mergedlightmaps = lightmapnumber;
4219         model->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4220         model->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4221         lightmappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4222         deluxemappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4223         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4224         {
4225                 surface = model->data_surfaces + surfaceindex;
4226                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4227                 for (i = 0;i < surface->num_triangles;i++)
4228                 {
4229                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4230                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], trianglenormal);
4231                         VectorNormalize(trianglenormal);
4232                         VectorCopy(trianglenormal, samplenormal); // FIXME: this is supposed to be interpolated per pixel from vertices
4233                         axis = triangle->axis;
4234                         axis1 = axis == 0 ? 1 : 0;
4235                         axis2 = axis == 2 ? 1 : 2;
4236                         lmiscale[0] = 1.0f / triangle->lmscale[0];
4237                         lmiscale[1] = 1.0f / triangle->lmscale[1];
4238                         if (trianglenormal[axis] < 0)
4239                                 VectorNegate(trianglenormal, trianglenormal);
4240                         CrossProduct(lmaxis[axis2], trianglenormal, temp);slopex = temp[axis] / temp[axis1];
4241                         CrossProduct(lmaxis[axis1], trianglenormal, temp);slopey = temp[axis] / temp[axis2];
4242                         slopebase = triangle->vertex[0][axis] - triangle->vertex[0][axis1]*slopex - triangle->vertex[0][axis2]*slopey;
4243                         for (j = 0;j < 3;j++)
4244                         {
4245                                 float *t2f = model->surfmesh.data_texcoordlightmap2f + e[i*3+j]*2;
4246                                 t2f[0] = ((triangle->vertex[j][axis1] - triangle->lmbase[0]) * triangle->lmscale[0] + triangle->lmoffset[0]) / lm_texturesize;
4247                                 t2f[1] = ((triangle->vertex[j][axis2] - triangle->lmbase[1]) * triangle->lmscale[1] + triangle->lmoffset[1]) / lm_texturesize;
4248 #if 0
4249                                 samplecenter[axis1] = (t2f[0]*lm_texturesize-triangle->lmoffset[0])*lmiscale[0] + triangle->lmbase[0];
4250                                 samplecenter[axis2] = (t2f[1]*lm_texturesize-triangle->lmoffset[1])*lmiscale[1] + triangle->lmbase[1];
4251                                 samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4252                                 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]);
4253 #endif
4254                         }
4255
4256 #if 0
4257                         switch (axis)
4258                         {
4259                         default:
4260                         case 0:
4261                                 forward[0] = 0;
4262                                 forward[1] = 1.0f / triangle->lmscale[0];
4263                                 forward[2] = 0;
4264                                 left[0] = 0;
4265                                 left[1] = 0;
4266                                 left[2] = 1.0f / triangle->lmscale[1];
4267                                 up[0] = 1.0f;
4268                                 up[1] = 0;
4269                                 up[2] = 0;
4270                                 origin[0] = 0;
4271                                 origin[1] = triangle->lmbase[0];
4272                                 origin[2] = triangle->lmbase[1];
4273                                 break;
4274                         case 1:
4275                                 forward[0] = 1.0f / triangle->lmscale[0];
4276                                 forward[1] = 0;
4277                                 forward[2] = 0;
4278                                 left[0] = 0;
4279                                 left[1] = 0;
4280                                 left[2] = 1.0f / triangle->lmscale[1];
4281                                 up[0] = 0;
4282                                 up[1] = 1.0f;
4283                                 up[2] = 0;
4284                                 origin[0] = triangle->lmbase[0];
4285                                 origin[1] = 0;
4286                                 origin[2] = triangle->lmbase[1];
4287                                 break;
4288                         case 2:
4289                                 forward[0] = 1.0f / triangle->lmscale[0];
4290                                 forward[1] = 0;
4291                                 forward[2] = 0;
4292                                 left[0] = 0;
4293                                 left[1] = 1.0f / triangle->lmscale[1];
4294                                 left[2] = 0;
4295                                 up[0] = 0;
4296                                 up[1] = 0;
4297                                 up[2] = 1.0f;
4298                                 origin[0] = triangle->lmbase[0];
4299                                 origin[1] = triangle->lmbase[1];
4300                                 origin[2] = 0;
4301                                 break;
4302                         }
4303                         Matrix4x4_FromVectors(&backmatrix, forward, left, up, origin);
4304 #endif
4305 #define LM_DIST_EPSILON (1.0f / 32.0f)
4306                         for (y = 0;y < triangle->lmsize[1];y++)
4307                         {
4308                                 pixeloffset = ((triangle->lightmapindex * lm_texturesize + y + triangle->lmoffset[1]) * lm_texturesize + triangle->lmoffset[0]) * 4;
4309                                 for (x = 0;x < triangle->lmsize[0];x++, pixeloffset += 4)
4310                                 {
4311                                         samplecenter[axis1] = (x+0.5f)*lmiscale[0] + triangle->lmbase[0];
4312                                         samplecenter[axis2] = (y+0.5f)*lmiscale[1] + triangle->lmbase[1];
4313                                         samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4314                                         VectorMA(samplecenter, 0.125f, samplenormal, samplecenter);
4315                                         Mod_GenerateLightmaps_LightmapSample(samplecenter, samplenormal, lightmappixels + pixeloffset, deluxemappixels + pixeloffset);
4316                                 }
4317                         }
4318                 }
4319         }
4320
4321         for (lightmapindex = 0;lightmapindex < model->brushq3.num_mergedlightmaps;lightmapindex++)
4322         {
4323                 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);
4324                 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);
4325         }
4326
4327         if (lightmappixels)
4328                 Mem_Free(lightmappixels);
4329         if (deluxemappixels)
4330                 Mem_Free(deluxemappixels);
4331
4332         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4333         {
4334                 surface = model->data_surfaces + surfaceindex;
4335                 if (!surface->num_triangles)
4336                         continue;
4337                 lightmapindex = mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle].lightmapindex;
4338                 surface->lightmaptexture = model->brushq3.data_lightmaps[lightmapindex];
4339                 surface->deluxemaptexture = model->brushq3.data_deluxemaps[lightmapindex];
4340                 surface->lightmapinfo = NULL;
4341         }
4342
4343         model->brush.LightPoint = Mod_GenerateLightmaps_LightPoint;
4344         model->brushq1.lightdata = NULL;
4345         model->brushq1.lightmapupdateflags = NULL;
4346         model->brushq1.firstrender = false;
4347         model->brushq1.num_lightstyles = 0;
4348         model->brushq1.data_lightstyleinfo = NULL;
4349         for (i = 0;i < model->brush.numsubmodels;i++)
4350         {
4351                 model->brush.submodels[i]->brushq1.lightmapupdateflags = NULL;
4352                 model->brush.submodels[i]->brushq1.firstrender = false;
4353                 model->brush.submodels[i]->brushq1.num_lightstyles = 0;
4354                 model->brush.submodels[i]->brushq1.data_lightstyleinfo = NULL;
4355         }
4356 }
4357
4358 static void Mod_GenerateLightmaps_UpdateVertexColors(model_t *model)
4359 {
4360         int i;
4361         for (i = 0;i < model->surfmesh.num_vertices;i++)
4362                 Mod_GenerateLightmaps_VertexSample(model->surfmesh.data_vertex3f + 3*i, model->surfmesh.data_normal3f + 3*i, model->surfmesh.data_lightmapcolor4f + 4*i);
4363 }
4364
4365 static void Mod_GenerateLightmaps_UpdateLightGrid(model_t *model)
4366 {
4367         int x;
4368         int y;
4369         int z;
4370         int index = 0;
4371         float pos[3];
4372         for (z = 0;z < model->brushq3.num_lightgrid_isize[2];z++)
4373         {
4374                 pos[2] = (model->brushq3.num_lightgrid_imins[2] + z + 0.5f) * model->brushq3.num_lightgrid_cellsize[2];
4375                 for (y = 0;y < model->brushq3.num_lightgrid_isize[1];y++)
4376                 {
4377                         pos[1] = (model->brushq3.num_lightgrid_imins[1] + y + 0.5f) * model->brushq3.num_lightgrid_cellsize[1];
4378                         for (x = 0;x < model->brushq3.num_lightgrid_isize[0];x++, index++)
4379                         {
4380                                 pos[0] = (model->brushq3.num_lightgrid_imins[0] + x + 0.5f) * model->brushq3.num_lightgrid_cellsize[0];
4381                                 Mod_GenerateLightmaps_GridSample(pos, model->brushq3.data_lightgrid + index);
4382                         }
4383                 }
4384         }
4385 }
4386
4387 extern cvar_t mod_q3bsp_nolightmaps;
4388 static void Mod_GenerateLightmaps(model_t *model)
4389 {
4390         //lightmaptriangle_t *lightmaptriangles = Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4391         model_t *oldloadmodel = loadmodel;
4392         loadmodel = model;
4393
4394         Mod_GenerateLightmaps_InitSampleOffsets(model);
4395         Mod_GenerateLightmaps_DestroyLightmaps(model);
4396         Mod_GenerateLightmaps_UnweldTriangles(model);
4397         Mod_GenerateLightmaps_CreateTriangleInformation(model);
4398         Mod_GenerateLightmaps_CreateLights(model);
4399         if(!mod_q3bsp_nolightmaps.integer)
4400                 Mod_GenerateLightmaps_CreateLightmaps(model);
4401         Mod_GenerateLightmaps_UpdateVertexColors(model);
4402         Mod_GenerateLightmaps_UpdateLightGrid(model);
4403         Mod_GenerateLightmaps_DestroyLights(model);
4404         Mod_GenerateLightmaps_DestroyTriangleInformation(model);
4405
4406         loadmodel = oldloadmodel;
4407 }
4408
4409 static void Mod_GenerateLightmaps_f(cmd_state_t *cmd)
4410 {
4411         if (Cmd_Argc(cmd) != 1)
4412         {
4413                 Con_Printf("usage: mod_generatelightmaps\n");
4414                 return;
4415         }
4416         if (!cl.worldmodel)
4417         {
4418                 Con_Printf("no worldmodel loaded\n");
4419                 return;
4420         }
4421         Mod_GenerateLightmaps(cl.worldmodel);
4422 }
4423
4424 void Mod_Mesh_Create(model_t *mod, const char *name)
4425 {
4426         memset(mod, 0, sizeof(*mod));
4427         strlcpy(mod->name, name, sizeof(mod->name));
4428         mod->mempool = Mem_AllocPool(name, 0, NULL);
4429         mod->texturepool = R_AllocTexturePool();
4430         mod->Draw = R_Mod_Draw;
4431         mod->DrawDepth = R_Mod_DrawDepth;
4432         mod->DrawDebug = R_Mod_DrawDebug;
4433         mod->DrawPrepass = R_Mod_DrawPrepass;
4434         mod->GetLightInfo = R_Mod_GetLightInfo;
4435         mod->DrawShadowMap = R_Mod_DrawShadowMap;
4436         mod->DrawLight = R_Mod_DrawLight;
4437 }
4438
4439 void Mod_Mesh_Destroy(model_t *mod)
4440 {
4441         Mod_UnloadModel(mod);
4442 }
4443
4444 // resets the mesh model to have no geometry to render, ready for a new frame -
4445 // the mesh will be prepared for rendering later using Mod_Mesh_Finalize
4446 void Mod_Mesh_Reset(model_t *mod)
4447 {
4448         mod->num_surfaces = 0;
4449         mod->surfmesh.num_vertices = 0;
4450         mod->surfmesh.num_triangles = 0;
4451         memset(mod->surfmesh.data_vertexhash, -1, mod->surfmesh.num_vertexhashsize * sizeof(*mod->surfmesh.data_vertexhash));
4452         mod->DrawSky = NULL; // will be set if a texture needs it
4453         mod->DrawAddWaterPlanes = NULL; // will be set if a texture needs it
4454 }
4455
4456 texture_t *Mod_Mesh_GetTexture(model_t *mod, const char *name, int defaultdrawflags, int defaulttexflags, int defaultmaterialflags)
4457 {
4458         int i;
4459         texture_t *t;
4460         int drawflag = defaultdrawflags & DRAWFLAG_MASK;
4461         for (i = 0, t = mod->data_textures; i < mod->num_textures; i++, t++)
4462                 if (!strcmp(t->name, name) && t->mesh_drawflag == drawflag && t->mesh_defaulttexflags == defaulttexflags && t->mesh_defaultmaterialflags == defaultmaterialflags)
4463                         return t;
4464         if (mod->max_textures <= mod->num_textures)
4465         {
4466                 texture_t *oldtextures = mod->data_textures;
4467                 mod->max_textures = max(mod->max_textures * 2, 1024);
4468                 mod->data_textures = (texture_t *)Mem_Realloc(mod->mempool, mod->data_textures, mod->max_textures * sizeof(*mod->data_textures));
4469                 // update the pointers
4470                 for (i = 0; i < mod->num_surfaces; i++)
4471                         mod->data_surfaces[i].texture = mod->data_textures + (mod->data_surfaces[i].texture - oldtextures);
4472         }
4473         t = &mod->data_textures[mod->num_textures++];
4474         Mod_LoadTextureFromQ3Shader(mod->mempool, mod->name, t, name, true, true, defaulttexflags, defaultmaterialflags);
4475         t->mesh_drawflag = drawflag;
4476         t->mesh_defaulttexflags = defaulttexflags;
4477         t->mesh_defaultmaterialflags = defaultmaterialflags;
4478         switch (defaultdrawflags & DRAWFLAG_MASK)
4479         {
4480         case DRAWFLAG_ADDITIVE:
4481                 t->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED;
4482                 t->currentmaterialflags = t->basematerialflags;
4483                 break;
4484         case DRAWFLAG_MODULATE:
4485                 t->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_BLENDED;
4486                 t->currentmaterialflags = t->basematerialflags;
4487                 t->customblendfunc[0] = GL_DST_COLOR;
4488                 t->customblendfunc[1] = GL_ZERO;
4489                 break;
4490         case DRAWFLAG_2XMODULATE:
4491                 t->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_BLENDED;
4492                 t->currentmaterialflags = t->basematerialflags;
4493                 t->customblendfunc[0] = GL_DST_COLOR;
4494                 t->customblendfunc[1] = GL_SRC_COLOR;
4495                 break;
4496         case DRAWFLAG_SCREEN:
4497                 t->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_BLENDED;
4498                 t->currentmaterialflags = t->basematerialflags;
4499                 t->customblendfunc[0] = GL_ONE_MINUS_DST_COLOR;
4500                 t->customblendfunc[1] = GL_ONE;
4501                 break;
4502         default:
4503                 break;
4504         }
4505         return t;
4506 }
4507
4508 msurface_t *Mod_Mesh_AddSurface(model_t *mod, texture_t *tex, qbool batchwithprevioussurface)
4509 {
4510         msurface_t *surf;
4511         // batch if possible; primarily useful for UI rendering where bounding boxes don't matter
4512         if (batchwithprevioussurface && mod->num_surfaces > 0 && mod->data_surfaces[mod->num_surfaces - 1].texture == tex)
4513                 return mod->data_surfaces + mod->num_surfaces - 1;
4514         // create new surface
4515         if (mod->max_surfaces == mod->num_surfaces)
4516         {
4517                 mod->max_surfaces = 2 * max(mod->num_surfaces, 64);
4518                 mod->data_surfaces = (msurface_t *)Mem_Realloc(mod->mempool, mod->data_surfaces, mod->max_surfaces * sizeof(*mod->data_surfaces));
4519                 mod->modelsurfaces_sorted = (int *)Mem_Realloc(mod->mempool, mod->modelsurfaces_sorted, mod->max_surfaces * sizeof(*mod->modelsurfaces_sorted));
4520         }
4521         surf = mod->data_surfaces + mod->num_surfaces;
4522         mod->num_surfaces++;
4523         memset(surf, 0, sizeof(*surf));
4524         surf->texture = tex;
4525         surf->num_firsttriangle = mod->surfmesh.num_triangles;
4526         surf->num_firstvertex = mod->surfmesh.num_vertices;
4527         if (tex->basematerialflags & (MATERIALFLAG_SKY))
4528                 mod->DrawSky = R_Mod_DrawSky;
4529         if (tex->basematerialflags & (MATERIALFLAG_WATERSHADER | MATERIALFLAG_REFRACTION | MATERIALFLAG_REFLECTION | MATERIALFLAG_CAMERA))
4530                 mod->DrawAddWaterPlanes = R_Mod_DrawAddWaterPlanes;
4531         return surf;
4532 }
4533
4534 static void Mod_Mesh_RebuildHashTable(model_t *mod, msurface_t *surf)
4535 {
4536         int hashindex, h, vnum, mask;
4537         surfmesh_t *mesh = &mod->surfmesh;
4538
4539         // rebuild the hash table
4540         mesh->num_vertexhashsize = 4 * mesh->max_vertices;
4541         mesh->num_vertexhashsize &= ~(mesh->num_vertexhashsize - 1); // round down to pow2
4542         mesh->data_vertexhash = (int *)Mem_Realloc(mod->mempool, mesh->data_vertexhash, mesh->num_vertexhashsize * sizeof(*mesh->data_vertexhash));
4543         memset(mesh->data_vertexhash, -1, mesh->num_vertexhashsize * sizeof(*mesh->data_vertexhash));
4544         mask = mod->surfmesh.num_vertexhashsize - 1;
4545         // no need to hash the vertices for the entire model, the latest surface will suffice.
4546         for (vnum = surf ? surf->num_firstvertex : 0; vnum < mesh->num_vertices; vnum++)
4547         {
4548                 // this uses prime numbers intentionally for computing the hash
4549                 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;
4550                 for (h = hashindex; mesh->data_vertexhash[h] >= 0; h = (h + 1) & mask)
4551                         ; // just iterate until we find the terminator
4552                 mesh->data_vertexhash[h] = vnum;
4553         }
4554 }
4555
4556 void Mod_Mesh_CheckResize_Vertex(model_t *mod, msurface_t *surf)
4557 {
4558         surfmesh_t *mesh = &mod->surfmesh;
4559         if (mesh->max_vertices == mesh->num_vertices)
4560         {
4561                 mesh->max_vertices = max(mesh->num_vertices * 2, 256);
4562                 mesh->data_vertex3f = (float *)Mem_Realloc(mod->mempool, mesh->data_vertex3f, mesh->max_vertices * sizeof(float[3]));
4563                 mesh->data_svector3f = (float *)Mem_Realloc(mod->mempool, mesh->data_svector3f, mesh->max_vertices * sizeof(float[3]));
4564                 mesh->data_tvector3f = (float *)Mem_Realloc(mod->mempool, mesh->data_tvector3f, mesh->max_vertices * sizeof(float[3]));
4565                 mesh->data_normal3f = (float *)Mem_Realloc(mod->mempool, mesh->data_normal3f, mesh->max_vertices * sizeof(float[3]));
4566                 mesh->data_texcoordtexture2f = (float *)Mem_Realloc(mod->mempool, mesh->data_texcoordtexture2f, mesh->max_vertices * sizeof(float[2]));
4567                 mesh->data_texcoordlightmap2f = (float *)Mem_Realloc(mod->mempool, mesh->data_texcoordlightmap2f, mesh->max_vertices * sizeof(float[2]));
4568                 mesh->data_lightmapcolor4f = (float *)Mem_Realloc(mod->mempool, mesh->data_lightmapcolor4f, mesh->max_vertices * sizeof(float[4]));
4569                 Mod_Mesh_RebuildHashTable(mod, surf);
4570         }
4571 }
4572
4573 int Mod_Mesh_AddVertex(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)
4574 {
4575         int vnum;
4576         surfmesh_t *mesh = &mod->surfmesh;
4577
4578         // add the new vertex
4579         vnum = mesh->num_vertices++;
4580         if (surf->num_vertices > 0)
4581         {
4582                 if (surf->mins[0] > x) surf->mins[0] = x;
4583                 if (surf->mins[1] > y) surf->mins[1] = y;
4584                 if (surf->mins[2] > z) surf->mins[2] = z;
4585                 if (surf->maxs[0] < x) surf->maxs[0] = x;
4586                 if (surf->maxs[1] < y) surf->maxs[1] = y;
4587                 if (surf->maxs[2] < z) surf->maxs[2] = z;
4588         }
4589         else
4590         {
4591                 VectorSet(surf->mins, x, y, z);
4592                 VectorSet(surf->maxs, x, y, z);
4593         }
4594         surf->num_vertices = mesh->num_vertices - surf->num_firstvertex;
4595         mesh->data_vertex3f[vnum * 3 + 0] = x;
4596         mesh->data_vertex3f[vnum * 3 + 1] = y;
4597         mesh->data_vertex3f[vnum * 3 + 2] = z;
4598         mesh->data_normal3f[vnum * 3 + 0] = nx;
4599         mesh->data_normal3f[vnum * 3 + 1] = ny;
4600         mesh->data_normal3f[vnum * 3 + 2] = nz;
4601         mesh->data_texcoordtexture2f[vnum * 2 + 0] = s;
4602         mesh->data_texcoordtexture2f[vnum * 2 + 1] = t;
4603         mesh->data_texcoordlightmap2f[vnum * 2 + 0] = u;
4604         mesh->data_texcoordlightmap2f[vnum * 2 + 1] = v;
4605         mesh->data_lightmapcolor4f[vnum * 4 + 0] = r;
4606         mesh->data_lightmapcolor4f[vnum * 4 + 1] = g;
4607         mesh->data_lightmapcolor4f[vnum * 4 + 2] = b;
4608         mesh->data_lightmapcolor4f[vnum * 4 + 3] = a;
4609         return vnum;
4610 }
4611
4612 int Mod_Mesh_IndexForVertex(model_t *mod, msurface_t *surf, float x, float y, float z, float nx, float ny, float nz, float s, float t, float u, float v, float r, float g, float b, float a)
4613 {
4614         int hashindex, h, vnum, mask;
4615         surfmesh_t *mesh = &mod->surfmesh;
4616
4617         Mod_Mesh_CheckResize_Vertex(mod, surf);
4618
4619         mask = mod->surfmesh.num_vertexhashsize - 1;
4620         // this uses prime numbers intentionally for computing the hash
4621         hashindex = (unsigned int)(x * 2003 + y * 4001 + z * 7919 + nx * 4097 + ny * 257 + nz * 17) & mask;
4622         // when possible find an identical vertex within the same surface and return it
4623         for(h = hashindex;(vnum = mesh->data_vertexhash[h]) >= 0;h = (h + 1) & mask)
4624         {
4625                 if (vnum >= surf->num_firstvertex
4626                  && mesh->data_vertex3f[vnum * 3 + 0] == x && mesh->data_vertex3f[vnum * 3 + 1] == y && mesh->data_vertex3f[vnum * 3 + 2] == z
4627                  && mesh->data_normal3f[vnum * 3 + 0] == nx && mesh->data_normal3f[vnum * 3 + 1] == ny && mesh->data_normal3f[vnum * 3 + 2] == nz
4628                  && mesh->data_texcoordtexture2f[vnum * 2 + 0] == s && mesh->data_texcoordtexture2f[vnum * 2 + 1] == t
4629                  && mesh->data_texcoordlightmap2f[vnum * 2 + 0] == u && mesh->data_texcoordlightmap2f[vnum * 2 + 1] == v
4630                  && 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)
4631                         return vnum;
4632         }
4633         vnum = Mod_Mesh_AddVertex(mod, surf, x, y, z, nx, ny, nz, s, t, u, v, r, g, b, a);
4634         mesh->data_vertexhash[h] = vnum;
4635         return vnum;
4636 }
4637
4638 void Mod_Mesh_AddTriangle(model_t *mod, msurface_t *surf, int e0, int e1, int e2)
4639 {
4640         surfmesh_t *mesh = &mod->surfmesh;
4641         if (mesh->max_triangles == mesh->num_triangles)
4642         {
4643                 mesh->max_triangles = 2 * max(mesh->num_triangles, 128);
4644                 mesh->data_element3s = (unsigned short *)Mem_Realloc(mod->mempool, mesh->data_element3s, mesh->max_triangles * sizeof(unsigned short[3]));
4645                 mesh->data_element3i = (int *)Mem_Realloc(mod->mempool, mesh->data_element3i, mesh->max_triangles * sizeof(int[3]));
4646         }
4647         mesh->data_element3s[mesh->num_triangles * 3 + 0] = e0;
4648         mesh->data_element3s[mesh->num_triangles * 3 + 1] = e1;
4649         mesh->data_element3s[mesh->num_triangles * 3 + 2] = e2;
4650         mesh->data_element3i[mesh->num_triangles * 3 + 0] = e0;
4651         mesh->data_element3i[mesh->num_triangles * 3 + 1] = e1;
4652         mesh->data_element3i[mesh->num_triangles * 3 + 2] = e2;
4653         mesh->num_triangles++;
4654         surf->num_triangles++;
4655 }
4656
4657 static void Mod_Mesh_MakeSortedSurfaces(model_t *mod)
4658 {
4659         int i, j;
4660         texture_t *tex;
4661         unsigned char* included = R_FrameData_Alloc(mod->num_surfaces * sizeof(unsigned char));
4662
4663         // build the sorted surfaces list properly to reduce material setup
4664         // this is easy because we're just sorting on texture and don't care about the order of textures
4665         mod->submodelsurfaces_start = 0;
4666         mod->submodelsurfaces_end = 0;
4667         for (i = 0; i < mod->num_surfaces; i++)
4668                 included[i] = 0;
4669         for (i = 0; i < mod->num_surfaces; i++)
4670         {
4671                 if (included[i])
4672                         continue;
4673                 tex = mod->data_surfaces[i].texture;
4674                 // j = i is intentional
4675                 for (j = i; j < mod->num_surfaces; j++)
4676                 {
4677                         if (!included[j] && mod->data_surfaces[j].texture == tex)
4678                         {
4679                                 included[j] = 1;
4680                                 mod->modelsurfaces_sorted[mod->submodelsurfaces_end++] = j;
4681                         }
4682                 }
4683         }
4684 }
4685
4686 static void Mod_Mesh_ComputeBounds(model_t *mod)
4687 {
4688         int i;
4689         vec_t x2a, x2b, y2a, y2b, z2a, z2b, x2, y2, z2, yawradius, rotatedradius;
4690
4691         if (mod->surfmesh.num_vertices > 0)
4692         {
4693                 // calculate normalmins/normalmaxs
4694                 VectorCopy(mod->surfmesh.data_vertex3f, mod->normalmins);
4695                 VectorCopy(mod->surfmesh.data_vertex3f, mod->normalmaxs);
4696                 for (i = 1; i < mod->surfmesh.num_vertices; i++)
4697                 {
4698                         float x = mod->surfmesh.data_vertex3f[i * 3 + 0];
4699                         float y = mod->surfmesh.data_vertex3f[i * 3 + 1];
4700                         float z = mod->surfmesh.data_vertex3f[i * 3 + 2];
4701                         // expand bounds to include this vertex
4702                         if (mod->normalmins[0] > x) mod->normalmins[0] = x;
4703                         if (mod->normalmins[1] > y) mod->normalmins[1] = y;
4704                         if (mod->normalmins[2] > z) mod->normalmins[2] = z;
4705                         if (mod->normalmaxs[0] < x) mod->normalmaxs[0] = x;
4706                         if (mod->normalmaxs[1] < y) mod->normalmaxs[1] = y;
4707                         if (mod->normalmaxs[2] < z) mod->normalmaxs[2] = z;
4708                 }
4709                 // calculate yawmins/yawmaxs, rotatedmins/maxs from normalmins/maxs
4710                 // (fast but less accurate than doing it per vertex)
4711                 x2a = mod->normalmins[0] * mod->normalmins[0];
4712                 x2b = mod->normalmaxs[0] * mod->normalmaxs[0];
4713                 y2a = mod->normalmins[1] * mod->normalmins[1];
4714                 y2b = mod->normalmaxs[1] * mod->normalmaxs[1];
4715                 z2a = mod->normalmins[2] * mod->normalmins[2];
4716                 z2b = mod->normalmaxs[2] * mod->normalmaxs[2];
4717                 x2 = max(x2a, x2b);
4718                 y2 = max(y2a, y2b);
4719                 z2 = max(z2a, z2b);
4720                 yawradius = sqrt(x2 + y2);
4721                 rotatedradius = sqrt(x2 + y2 + z2);
4722                 VectorSet(mod->yawmins, -yawradius, -yawradius, mod->normalmins[2]);
4723                 VectorSet(mod->yawmaxs, yawradius, yawradius, mod->normalmaxs[2]);
4724                 VectorSet(mod->rotatedmins, -rotatedradius, -rotatedradius, -rotatedradius);
4725                 VectorSet(mod->rotatedmaxs, rotatedradius, rotatedradius, rotatedradius);
4726                 mod->radius = rotatedradius;
4727                 mod->radius2 = x2 + y2 + z2;
4728         }
4729         else
4730         {
4731                 VectorClear(mod->normalmins);
4732                 VectorClear(mod->normalmaxs);
4733                 VectorClear(mod->yawmins);
4734                 VectorClear(mod->yawmaxs);
4735                 VectorClear(mod->rotatedmins);
4736                 VectorClear(mod->rotatedmaxs);
4737                 mod->radius = 0;
4738                 mod->radius2 = 0;
4739         }
4740 }
4741
4742 void Mod_Mesh_Validate(model_t *mod)
4743 {
4744         int i;
4745         qbool warned = false;
4746         for (i = 0; i < mod->num_surfaces; i++)
4747         {
4748                 msurface_t *surf = mod->data_surfaces + i;
4749                 int *e = mod->surfmesh.data_element3i + surf->num_firsttriangle * 3;
4750                 int first = surf->num_firstvertex;
4751                 int end = surf->num_firstvertex + surf->num_vertices;
4752                 int j;
4753                 for (j = 0;j < surf->num_triangles * 3;j++)
4754                 {
4755                         if (e[j] < first || e[j] >= end)
4756                         {
4757                                 if (!warned)
4758                                         Con_DPrintf("Mod_Mesh_Validate: detected corrupt surface - debug me!\n");
4759                                 warned = true;
4760                                 e[j] = first;
4761                         }
4762                 }
4763         }
4764 }
4765
4766 static void Mod_Mesh_UploadDynamicBuffers(model_t *mod)
4767 {
4768         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;
4769         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;
4770         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;
4771         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;
4772         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;
4773         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;
4774         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;
4775         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;
4776         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;
4777         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;
4778         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;
4779 }
4780
4781 void Mod_Mesh_Finalize(model_t *mod)
4782 {
4783         if (gl_paranoid.integer)
4784                 Mod_Mesh_Validate(mod);
4785         Mod_Mesh_ComputeBounds(mod);
4786         Mod_Mesh_MakeSortedSurfaces(mod);
4787         if(!r_refdef.draw2dstage)
4788                 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);
4789         Mod_Mesh_UploadDynamicBuffers(mod);
4790 }