model_shared.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // models.c -- model loading and caching
  21
  22 // models are the only shared resource between a client and server running
  23 // on the same machine.
  24
  25 #include "quakedef.h"
  26 #include "image.h"
  27 #include "r_shadow.h"
  28 #include "polygon.h"
  29
  30 cvar_t r_enableshadowvolumes = {CVAR_SAVE, "r_enableshadowvolumes", "1", "Enables use of Stencil Shadow Volume shadowing methods, saves some memory if turned off"};
  31 cvar_t r_mipskins = {CVAR_SAVE, "r_mipskins", "0", "mipmaps model skins so they render faster in the distance and do not display noise artifacts, can cause discoloration of skins if they contain undesirable border colors"};
  32 cvar_t r_mipnormalmaps = {CVAR_SAVE, "r_mipnormalmaps", "1", "mipmaps normalmaps (turning it off looks sharper but may have aliasing)"};
  33 cvar_t mod_generatelightmaps_unitspersample = {CVAR_SAVE, "mod_generatelightmaps_unitspersample", "8", "lightmap resolution"};
  34 cvar_t mod_generatelightmaps_borderpixels = {CVAR_SAVE, "mod_generatelightmaps_borderpixels", "2", "extra space around polygons to prevent sampling artifacts"};
  35 cvar_t mod_generatelightmaps_texturesize = {CVAR_SAVE, "mod_generatelightmaps_texturesize", "1024", "size of lightmap textures"};
  36 cvar_t mod_generatelightmaps_lightmapsamples = {CVAR_SAVE, "mod_generatelightmaps_lightmapsamples", "16", "number of shadow tests done per lightmap pixel"};
  37 cvar_t mod_generatelightmaps_vertexsamples = {CVAR_SAVE, "mod_generatelightmaps_vertexsamples", "16", "number of shadow tests done per vertex"};
  38 cvar_t mod_generatelightmaps_gridsamples = {CVAR_SAVE, "mod_generatelightmaps_gridsamples", "64", "number of shadow tests done per lightgrid cell"};
  39 cvar_t mod_generatelightmaps_lightmapradius = {CVAR_SAVE, "mod_generatelightmaps_lightmapradius", "16", "sampling area around each lightmap pixel"};
  40 cvar_t mod_generatelightmaps_vertexradius = {CVAR_SAVE, "mod_generatelightmaps_vertexradius", "16", "sampling area around each vertex"};
  41 cvar_t mod_generatelightmaps_gridradius = {CVAR_SAVE, "mod_generatelightmaps_gridradius", "64", "sampling area around each lightgrid cell center"};
  42
  43 dp_model_t *loadmodel;
  44
  45 static mempool_t *mod_mempool;
  46 static memexpandablearray_t models;
  47
  48 static mempool_t* q3shaders_mem;
  49 typedef struct q3shader_hash_entry_s
  50 {
  51   q3shaderinfo_t shader;
  52   struct q3shader_hash_entry_s* chain;
  53 } q3shader_hash_entry_t;
  54 #define Q3SHADER_HASH_SIZE  1021
  55 typedef struct q3shader_data_s
  56 {
  57   memexpandablearray_t hash_entries;
  58   q3shader_hash_entry_t hash[Q3SHADER_HASH_SIZE];
  59   memexpandablearray_t char_ptrs;
  60 } q3shader_data_t;
  61 static q3shader_data_t* q3shader_data;
  62
  63 static void mod_start(void)
  64 {
  65         int i, count;
  66         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  67         dp_model_t *mod;
  68
  69         SCR_PushLoadingScreen(false, "Loading models", 1.0);
  70         count = 0;
  71         for (i = 0;i < nummodels;i++)
  72                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  73                         if (mod->used)
  74                                 ++count;
  75         for (i = 0;i < nummodels;i++)
  76                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  77                         if (mod->used)
  78                         {
  79                                 SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
  80                                 Mod_LoadModel(mod, true, false);
  81                                 SCR_PopLoadingScreen(false);
  82                         }
  83         SCR_PopLoadingScreen(false);
  84 }
  85
  86 static void mod_shutdown(void)
  87 {
  88         int i;
  89         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  90         dp_model_t *mod;
  91
  92         for (i = 0;i < nummodels;i++)
  93                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && (mod->loaded || mod->mempool))
  94                         Mod_UnloadModel(mod);
  95
  96         Mod_FreeQ3Shaders();
  97         Mod_Skeletal_FreeBuffers();
  98 }
  99
 100 static void mod_newmap(void)
 101 {
 102         msurface_t *surface;
 103         int i, j, k, surfacenum, ssize, tsize;
 104         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 105         dp_model_t *mod;
 106
 107         for (i = 0;i < nummodels;i++)
 108         {
 109                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool)
 110                 {
 111                         for (j = 0;j < mod->num_textures && mod->data_textures;j++)
 112                         {
 113                                 for (k = 0;k < mod->data_textures[j].numskinframes;k++)
 114                                         R_SkinFrame_MarkUsed(mod->data_textures[j].skinframes[k]);
 115                                 for (k = 0;k < mod->data_textures[j].backgroundnumskinframes;k++)
 116                                         R_SkinFrame_MarkUsed(mod->data_textures[j].backgroundskinframes[k]);
 117                         }
 118                         if (mod->brush.solidskyskinframe)
 119                                 R_SkinFrame_MarkUsed(mod->brush.solidskyskinframe);
 120                         if (mod->brush.alphaskyskinframe)
 121                                 R_SkinFrame_MarkUsed(mod->brush.alphaskyskinframe);
 122                 }
 123         }
 124
 125         if (!cl_stainmaps_clearonload.integer)
 126                 return;
 127
 128         for (i = 0;i < nummodels;i++)
 129         {
 130                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool && mod->data_surfaces)
 131                 {
 132                         for (surfacenum = 0, surface = mod->data_surfaces;surfacenum < mod->num_surfaces;surfacenum++, surface++)
 133                         {
 134                                 if (surface->lightmapinfo && surface->lightmapinfo->stainsamples)
 135                                 {
 136                                         ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
 137                                         tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
 138                                         memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
 139                                         mod->brushq1.lightmapupdateflags[surfacenum] = true;
 140                                 }
 141                         }
 142                 }
 143         }
 144 }
 145
 146 /*
 147 ===============
 148 Mod_Init
 149 ===============
 150 */
 151 static void Mod_Print(void);
 152 static void Mod_Precache (void);
 153 static void Mod_Decompile_f(void);
 154 static void Mod_GenerateLightmaps_f(void);
 155 void Mod_Init (void)
 156 {
 157         mod_mempool = Mem_AllocPool("modelinfo", 0, NULL);
 158         Mem_ExpandableArray_NewArray(&models, mod_mempool, sizeof(dp_model_t), 16);
 159
 160         Mod_BrushInit();
 161         Mod_AliasInit();
 162         Mod_SpriteInit();
 163
 164         Cvar_RegisterVariable(&r_enableshadowvolumes);
 165         Cvar_RegisterVariable(&r_mipskins);
 166         Cvar_RegisterVariable(&r_mipnormalmaps);
 167         Cvar_RegisterVariable(&mod_generatelightmaps_unitspersample);
 168         Cvar_RegisterVariable(&mod_generatelightmaps_borderpixels);
 169         Cvar_RegisterVariable(&mod_generatelightmaps_texturesize);
 170
 171         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapsamples);
 172         Cvar_RegisterVariable(&mod_generatelightmaps_vertexsamples);
 173         Cvar_RegisterVariable(&mod_generatelightmaps_gridsamples);
 174         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapradius);
 175         Cvar_RegisterVariable(&mod_generatelightmaps_vertexradius);
 176         Cvar_RegisterVariable(&mod_generatelightmaps_gridradius);
 177
 178         Cmd_AddCommand ("modellist", Mod_Print, "prints a list of loaded models");
 179         Cmd_AddCommand ("modelprecache", Mod_Precache, "load a model");
 180         Cmd_AddCommand ("modeldecompile", Mod_Decompile_f, "exports a model in several formats for editing purposes");
 181         Cmd_AddCommand ("mod_generatelightmaps", Mod_GenerateLightmaps_f, "rebuilds lighting on current worldmodel");
 182 }
 183
 184 void Mod_RenderInit(void)
 185 {
 186         R_RegisterModule("Models", mod_start, mod_shutdown, mod_newmap, NULL, NULL);
 187 }
 188
 189 void Mod_UnloadModel (dp_model_t *mod)
 190 {
 191         char name[MAX_QPATH];
 192         qboolean used;
 193         dp_model_t *parentmodel;
 194
 195         if (developer_loading.integer)
 196                 Con_Printf("unloading model %s\n", mod->name);
 197
 198         strlcpy(name, mod->name, sizeof(name));
 199         parentmodel = mod->brush.parentmodel;
 200         used = mod->used;
 201         if (mod->mempool)
 202         {
 203                 if (mod->surfmesh.vertex3fbuffer)
 204                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.vertex3fbuffer);
 205                 mod->surfmesh.vertex3fbuffer = NULL;
 206                 if (mod->surfmesh.vertexmeshbuffer)
 207                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.vertexmeshbuffer);
 208                 mod->surfmesh.vertexmeshbuffer = NULL;
 209                 if (mod->surfmesh.data_element3i_indexbuffer)
 210                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3i_indexbuffer);
 211                 mod->surfmesh.data_element3i_indexbuffer = NULL;
 212                 if (mod->surfmesh.data_element3s_indexbuffer)
 213                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3s_indexbuffer);
 214                 mod->surfmesh.data_element3s_indexbuffer = NULL;
 215                 if (mod->surfmesh.vbo_vertexbuffer)
 216                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.vbo_vertexbuffer);
 217                 mod->surfmesh.vbo_vertexbuffer = NULL;
 218         }
 219         // free textures/memory attached to the model
 220         R_FreeTexturePool(&mod->texturepool);
 221         Mem_FreePool(&mod->mempool);
 222         // clear the struct to make it available
 223         memset(mod, 0, sizeof(dp_model_t));
 224         // restore the fields we want to preserve
 225         strlcpy(mod->name, name, sizeof(mod->name));
 226         mod->brush.parentmodel = parentmodel;
 227         mod->used = used;
 228         mod->loaded = false;
 229 }
 230
 231 void R_Model_Null_Draw(entity_render_t *ent)
 232 {
 233         return;
 234 }
 235
 236
 237 typedef void (*mod_framegroupify_parsegroups_t) (unsigned int i, int start, int len, float fps, qboolean loop, void *pass);
 238
 239 int Mod_FrameGroupify_ParseGroups(const char *buf, mod_framegroupify_parsegroups_t cb, void *pass)
 240 {
 241         const char *bufptr;
 242         int start, len;
 243         float fps;
 244         unsigned int i;
 245         qboolean loop;
 246
 247         bufptr = buf;
 248         i = 0;
 249         for(;;)
 250         {
 251                 // an anim scene!
 252                 if (!COM_ParseToken_Simple(&bufptr, true, false))
 253                         break;
 254                 if (!strcmp(com_token, "\n"))
 255                         continue; // empty line
 256                 start = atoi(com_token);
 257                 if (!COM_ParseToken_Simple(&bufptr, true, false))
 258                         break;
 259                 if (!strcmp(com_token, "\n"))
 260                 {
 261                         Con_Printf("framegroups file: missing number of frames\n");
 262                         continue;
 263                 }
 264                 len = atoi(com_token);
 265                 if (!COM_ParseToken_Simple(&bufptr, true, false))
 266                         break;
 267                 // we default to looping as it's usually wanted, so to NOT loop you append a 0
 268                 if (strcmp(com_token, "\n"))
 269                 {
 270                         fps = atof(com_token);
 271                         if (!COM_ParseToken_Simple(&bufptr, true, false))
 272                                 break;
 273                         if (strcmp(com_token, "\n"))
 274                                 loop = atoi(com_token) != 0;
 275                         else
 276                                 loop = true;
 277                 }
 278                 else
 279                 {
 280                         fps = 20;
 281                         loop = true;
 282                 }
 283
 284                 if(cb)
 285                         cb(i, start, len, fps, loop, pass);
 286                 ++i;
 287         }
 288
 289         return i;
 290 }
 291
 292 void Mod_FrameGroupify_ParseGroups_Count (unsigned int i, int start, int len, float fps, qboolean loop, void *pass)
 293 {
 294         unsigned int *cnt = (unsigned int *) pass;
 295         ++*cnt;
 296 }
 297
 298 void Mod_FrameGroupify_ParseGroups_Store (unsigned int i, int start, int len, float fps, qboolean loop, void *pass)
 299 {
 300         dp_model_t *mod = (dp_model_t *) pass;
 301         animscene_t *anim = &mod->animscenes[i];
 302         dpsnprintf(anim->name, sizeof(anim[i].name), "groupified_%d_anim", i);
 303         anim->firstframe = bound(0, start, mod->num_poses - 1);
 304         anim->framecount = bound(1, len, mod->num_poses - anim->firstframe);
 305         anim->framerate = max(1, fps);
 306         anim->loop = !!loop;
 307         //Con_Printf("frame group %d is %d %d %f %d\n", i, start, len, fps, loop);
 308 }
 309
 310 void Mod_FrameGroupify(dp_model_t *mod, const char *buf)
 311 {
 312         unsigned int cnt;
 313
 314         // 0. count
 315         cnt = Mod_FrameGroupify_ParseGroups(buf, NULL, NULL);
 316         if(!cnt)
 317         {
 318                 Con_Printf("no scene found in framegroups file, aborting\n");
 319                 return;
 320         }
 321         mod->numframes = cnt;
 322
 323         // 1. reallocate
 324         // (we do not free the previous animscenes, but model unloading will free the pool owning them, so it's okay)
 325         mod->animscenes = (animscene_t *) Mem_Alloc(mod->mempool, sizeof(animscene_t) * mod->numframes);
 326
 327         // 2. parse
 328         Mod_FrameGroupify_ParseGroups(buf, Mod_FrameGroupify_ParseGroups_Store, mod);
 329 }
 330
 331 void Mod_FindPotentialDeforms(dp_model_t *mod)
 332 {
 333         int i, j;
 334         texture_t *texture;
 335         mod->wantnormals = false;
 336         mod->wanttangents = false;
 337         for (i = 0;i < mod->num_textures;i++)
 338         {
 339                 texture = mod->data_textures + i;
 340                 if (texture->tcgen.tcgen == Q3TCGEN_ENVIRONMENT)
 341                         mod->wantnormals = true;
 342                 for (j = 0;j < Q3MAXDEFORMS;j++)
 343                 {
 344                         if (texture->deforms[j].deform == Q3DEFORM_AUTOSPRITE)
 345                         {
 346                                 mod->wanttangents = true;
 347                                 mod->wantnormals = true;
 348                                 break;
 349                         }
 350                         if (texture->deforms[j].deform != Q3DEFORM_NONE)
 351                                 mod->wantnormals = true;
 352                 }
 353         }
 354 }
 355
 356 /*
 357 ==================
 358 Mod_LoadModel
 359
 360 Loads a model
 361 ==================
 362 */
 363 dp_model_t *Mod_LoadModel(dp_model_t *mod, qboolean crash, qboolean checkdisk)
 364 {
 365         int num;
 366         unsigned int crc;
 367         void *buf;
 368         fs_offset_t filesize = 0;
 369
 370         mod->used = true;
 371
 372         if (mod->name[0] == '*') // submodel
 373                 return mod;
 374
 375         if (!strcmp(mod->name, "null"))
 376         {
 377                 if(mod->loaded)
 378                         return mod;
 379
 380                 if (mod->loaded || mod->mempool)
 381                         Mod_UnloadModel(mod);
 382
 383                 if (developer_loading.integer)
 384                         Con_Printf("loading model %s\n", mod->name);
 385
 386                 mod->used = true;
 387                 mod->crc = (unsigned int)-1;
 388                 mod->loaded = false;
 389
 390                 VectorClear(mod->normalmins);
 391                 VectorClear(mod->normalmaxs);
 392                 VectorClear(mod->yawmins);
 393                 VectorClear(mod->yawmaxs);
 394                 VectorClear(mod->rotatedmins);
 395                 VectorClear(mod->rotatedmaxs);
 396
 397                 mod->modeldatatypestring = "null";
 398                 mod->type = mod_null;
 399                 mod->Draw = R_Model_Null_Draw;
 400                 mod->numframes = 2;
 401                 mod->numskins = 1;
 402
 403                 // no fatal errors occurred, so this model is ready to use.
 404                 mod->loaded = true;
 405
 406                 return mod;
 407         }
 408
 409         crc = 0;
 410         buf = NULL;
 411
 412         // even if the model is loaded it still may need reloading...
 413
 414         // if it is not loaded or checkdisk is true we need to calculate the crc
 415         if (!mod->loaded || checkdisk)
 416         {
 417                 if (checkdisk && mod->loaded)
 418                         Con_DPrintf("checking model %s\n", mod->name);
 419                 buf = FS_LoadFile (mod->name, tempmempool, false, &filesize);
 420                 if (buf)
 421                 {
 422                         crc = CRC_Block((unsigned char *)buf, filesize);
 423                         // we need to reload the model if the crc does not match
 424                         if (mod->crc != crc)
 425                                 mod->loaded = false;
 426                 }
 427         }
 428
 429         // if the model is already loaded and checks passed, just return
 430         if (mod->loaded)
 431         {
 432                 if (buf)
 433                         Mem_Free(buf);
 434                 return mod;
 435         }
 436
 437         if (developer_loading.integer)
 438                 Con_Printf("loading model %s\n", mod->name);
 439
 440         SCR_PushLoadingScreen(true, mod->name, 1);
 441
 442         // LordHavoc: unload the existing model in this slot (if there is one)
 443         if (mod->loaded || mod->mempool)
 444                 Mod_UnloadModel(mod);
 445
 446         // load the model
 447         mod->used = true;
 448         mod->crc = crc;
 449         // errors can prevent the corresponding mod->loaded = true;
 450         mod->loaded = false;
 451
 452         // default model radius and bounding box (mainly for missing models)
 453         mod->radius = 16;
 454         VectorSet(mod->normalmins, -mod->radius, -mod->radius, -mod->radius);
 455         VectorSet(mod->normalmaxs, mod->radius, mod->radius, mod->radius);
 456         VectorSet(mod->yawmins, -mod->radius, -mod->radius, -mod->radius);
 457         VectorSet(mod->yawmaxs, mod->radius, mod->radius, mod->radius);
 458         VectorSet(mod->rotatedmins, -mod->radius, -mod->radius, -mod->radius);
 459         VectorSet(mod->rotatedmaxs, mod->radius, mod->radius, mod->radius);
 460
 461         if (!q3shaders_mem)
 462         {
 463                 // load q3 shaders for the first time, or after a level change
 464                 Mod_LoadQ3Shaders();
 465         }
 466
 467         if (buf)
 468         {
 469                 char *bufend = (char *)buf + filesize;
 470
 471                 // all models use memory, so allocate a memory pool
 472                 mod->mempool = Mem_AllocPool(mod->name, 0, NULL);
 473
 474                 num = LittleLong(*((int *)buf));
 475                 // call the apropriate loader
 476                 loadmodel = mod;
 477                 if (!strcasecmp(FS_FileExtension(mod->name), "obj")) Mod_OBJ_Load(mod, buf, bufend);
 478                 else if (!memcmp(buf, "IDPO", 4)) Mod_IDP0_Load(mod, buf, bufend);
 479                 else if (!memcmp(buf, "IDP2", 4)) Mod_IDP2_Load(mod, buf, bufend);
 480                 else if (!memcmp(buf, "IDP3", 4)) Mod_IDP3_Load(mod, buf, bufend);
 481                 else if (!memcmp(buf, "IDSP", 4)) Mod_IDSP_Load(mod, buf, bufend);
 482                 else if (!memcmp(buf, "IDS2", 4)) Mod_IDS2_Load(mod, buf, bufend);
 483                 else if (!memcmp(buf, "IBSP", 4)) Mod_IBSP_Load(mod, buf, bufend);
 484                 else if (!memcmp(buf, "ZYMOTICMODEL", 12)) Mod_ZYMOTICMODEL_Load(mod, buf, bufend);
 485                 else if (!memcmp(buf, "DARKPLACESMODEL", 16)) Mod_DARKPLACESMODEL_Load(mod, buf, bufend);
 486                 else if (!memcmp(buf, "ACTRHEAD", 8)) Mod_PSKMODEL_Load(mod, buf, bufend);
 487                 else if (!memcmp(buf, "INTERQUAKEMODEL", 16)) Mod_INTERQUAKEMODEL_Load(mod, buf, bufend);
 488                 else if (strlen(mod->name) >= 4 && !strcmp(mod->name + strlen(mod->name) - 4, ".map")) Mod_MAP_Load(mod, buf, bufend);
 489                 else if (num == BSPVERSION || num == 30) Mod_Q1BSP_Load(mod, buf, bufend);
 490                 else Con_Printf("Mod_LoadModel: model \"%s\" is of unknown/unsupported type\n", mod->name);
 491                 Mem_Free(buf);
 492
 493                 Mod_FindPotentialDeforms(mod);
 494
 495                 buf = FS_LoadFile (va("%s.framegroups", mod->name), tempmempool, false, &filesize);
 496                 if(buf)
 497                 {
 498                         Mod_FrameGroupify(mod, (const char *)buf);
 499                         Mem_Free(buf);
 500                 }
 501
 502                 Mod_BuildVBOs();
 503         }
 504         else if (crash)
 505         {
 506                 // LordHavoc: Sys_Error was *ANNOYING*
 507                 Con_Printf ("Mod_LoadModel: %s not found\n", mod->name);
 508         }
 509
 510         // no fatal errors occurred, so this model is ready to use.
 511         mod->loaded = true;
 512
 513         SCR_PopLoadingScreen(false);
 514
 515         return mod;
 516 }
 517
 518 void Mod_ClearUsed(void)
 519 {
 520         int i;
 521         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 522         dp_model_t *mod;
 523         for (i = 0;i < nummodels;i++)
 524                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0])
 525                         mod->used = false;
 526 }
 527
 528 void Mod_PurgeUnused(void)
 529 {
 530         int i;
 531         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 532         dp_model_t *mod;
 533         for (i = 0;i < nummodels;i++)
 534         {
 535                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !mod->used)
 536                 {
 537                         Mod_UnloadModel(mod);
 538                         Mem_ExpandableArray_FreeRecord(&models, mod);
 539                 }
 540         }
 541 }
 542
 543 /*
 544 ==================
 545 Mod_FindName
 546
 547 ==================
 548 */
 549 dp_model_t *Mod_FindName(const char *name, const char *parentname)
 550 {
 551         int i;
 552         int nummodels;
 553         dp_model_t *mod;
 554
 555         if (!parentname)
 556                 parentname = "";
 557
 558         // if we're not dedicatd, the renderer calls will crash without video
 559         Host_StartVideo();
 560
 561         nummodels = Mem_ExpandableArray_IndexRange(&models);
 562
 563         if (!name[0])
 564                 Host_Error ("Mod_ForName: NULL name");
 565
 566         // search the currently loaded models
 567         for (i = 0;i < nummodels;i++)
 568         {
 569                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !strcmp(mod->name, name) && ((!mod->brush.parentmodel && !parentname[0]) || (mod->brush.parentmodel && parentname[0] && !strcmp(mod->brush.parentmodel->name, parentname))))
 570                 {
 571                         mod->used = true;
 572                         return mod;
 573                 }
 574         }
 575
 576         // no match found, create a new one
 577         mod = (dp_model_t *) Mem_ExpandableArray_AllocRecord(&models);
 578         strlcpy(mod->name, name, sizeof(mod->name));
 579         if (parentname[0])
 580                 mod->brush.parentmodel = Mod_FindName(parentname, NULL);
 581         else
 582                 mod->brush.parentmodel = NULL;
 583         mod->loaded = false;
 584         mod->used = true;
 585         return mod;
 586 }
 587
 588 /*
 589 ==================
 590 Mod_ForName
 591
 592 Loads in a model for the given name
 593 ==================
 594 */
 595 dp_model_t *Mod_ForName(const char *name, qboolean crash, qboolean checkdisk, const char *parentname)
 596 {
 597         dp_model_t *model;
 598         model = Mod_FindName(name, parentname);
 599         if (!model->loaded || checkdisk)
 600                 Mod_LoadModel(model, crash, checkdisk);
 601         return model;
 602 }
 603
 604 /*
 605 ==================
 606 Mod_Reload
 607
 608 Reloads all models if they have changed
 609 ==================
 610 */
 611 void Mod_Reload(void)
 612 {
 613         int i, count;
 614         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 615         dp_model_t *mod;
 616
 617         SCR_PushLoadingScreen(false, "Reloading models", 1.0);
 618         count = 0;
 619         for (i = 0;i < nummodels;i++)
 620                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 621                         ++count;
 622         for (i = 0;i < nummodels;i++)
 623                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 624                 {
 625                         SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
 626                         Mod_LoadModel(mod, true, true);
 627                         SCR_PopLoadingScreen(false);
 628                 }
 629         SCR_PopLoadingScreen(false);
 630 }
 631
 632 unsigned char *mod_base;
 633
 634
 635 //=============================================================================
 636
 637 /*
 638 ================
 639 Mod_Print
 640 ================
 641 */
 642 static void Mod_Print(void)
 643 {
 644         int i;
 645         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 646         dp_model_t *mod;
 647
 648         Con_Print("Loaded models:\n");
 649         for (i = 0;i < nummodels;i++)
 650         {
 651                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
 652                 {
 653                         if (mod->brush.numsubmodels)
 654                                 Con_Printf("%4iK %s (%i submodels)\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name, mod->brush.numsubmodels);
 655                         else
 656                                 Con_Printf("%4iK %s\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name);
 657                 }
 658         }
 659 }
 660
 661 /*
 662 ================
 663 Mod_Precache
 664 ================
 665 */
 666 static void Mod_Precache(void)
 667 {
 668         if (Cmd_Argc() == 2)
 669                 Mod_ForName(Cmd_Argv(1), false, true, Cmd_Argv(1)[0] == '*' ? cl.model_name[1] : NULL);
 670         else
 671                 Con_Print("usage: modelprecache <filename>\n");
 672 }
 673
 674 int Mod_BuildVertexRemapTableFromElements(int numelements, const int *elements, int numvertices, int *remapvertices)
 675 {
 676         int i, count;
 677         unsigned char *used;
 678         used = (unsigned char *)Mem_Alloc(tempmempool, numvertices);
 679         memset(used, 0, numvertices);
 680         for (i = 0;i < numelements;i++)
 681                 used[elements[i]] = 1;
 682         for (i = 0, count = 0;i < numvertices;i++)
 683                 remapvertices[i] = used[i] ? count++ : -1;
 684         Mem_Free(used);
 685         return count;
 686 }
 687
 688 #if 1
 689 // fast way, using an edge hash
 690 #define TRIANGLEEDGEHASH 8192
 691 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 692 {
 693         int i, j, p, e1, e2, *n, hashindex, count, match;
 694         const int *e;
 695         typedef struct edgehashentry_s
 696         {
 697                 struct edgehashentry_s *next;
 698                 int triangle;
 699                 int element[2];
 700         }
 701         edgehashentry_t;
 702         static edgehashentry_t **edgehash;
 703         edgehashentry_t *edgehashentries, *hash;
 704         if (!numtriangles)
 705                 return;
 706         edgehash = (edgehashentry_t **)Mem_Alloc(tempmempool, TRIANGLEEDGEHASH * sizeof(*edgehash));
 707         // if there are too many triangles for the stack array, allocate larger buffer
 708         edgehashentries = (edgehashentry_t *)Mem_Alloc(tempmempool, numtriangles * 3 * sizeof(edgehashentry_t));
 709         // find neighboring triangles
 710         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 711         {
 712                 for (j = 0, p = 2;j < 3;p = j, j++)
 713                 {
 714                         e1 = e[p];
 715                         e2 = e[j];
 716                         // this hash index works for both forward and backward edges
 717                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 718                         hash = edgehashentries + i * 3 + j;
 719                         hash->next = edgehash[hashindex];
 720                         edgehash[hashindex] = hash;
 721                         hash->triangle = i;
 722                         hash->element[0] = e1;
 723                         hash->element[1] = e2;
 724                 }
 725         }
 726         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 727         {
 728                 for (j = 0, p = 2;j < 3;p = j, j++)
 729                 {
 730                         e1 = e[p];
 731                         e2 = e[j];
 732                         // this hash index works for both forward and backward edges
 733                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 734                         count = 0;
 735                         match = -1;
 736                         for (hash = edgehash[hashindex];hash;hash = hash->next)
 737                         {
 738                                 if (hash->element[0] == e2 && hash->element[1] == e1)
 739                                 {
 740                                         if (hash->triangle != i)
 741                                                 match = hash->triangle;
 742                                         count++;
 743                                 }
 744                                 else if ((hash->element[0] == e1 && hash->element[1] == e2))
 745                                         count++;
 746                         }
 747                         // detect edges shared by three triangles and make them seams
 748                         if (count > 2)
 749                                 match = -1;
 750                         n[p] = match;
 751                 }
 752
 753                 // also send a keepalive here (this can take a while too!)
 754                 CL_KeepaliveMessage(false);
 755         }
 756         // free the allocated buffer
 757         Mem_Free(edgehashentries);
 758         Mem_Free(edgehash);
 759 }
 760 #else
 761 // very slow but simple way
 762 static int Mod_FindTriangleWithEdge(const int *elements, int numtriangles, int start, int end, int ignore)
 763 {
 764         int i, match, count;
 765         count = 0;
 766         match = -1;
 767         for (i = 0;i < numtriangles;i++, elements += 3)
 768         {
 769                      if ((elements[0] == start && elements[1] == end)
 770                       || (elements[1] == start && elements[2] == end)
 771                       || (elements[2] == start && elements[0] == end))
 772                 {
 773                         if (i != ignore)
 774                                 match = i;
 775                         count++;
 776                 }
 777                 else if ((elements[1] == start && elements[0] == end)
 778                       || (elements[2] == start && elements[1] == end)
 779                       || (elements[0] == start && elements[2] == end))
 780                         count++;
 781         }
 782         // detect edges shared by three triangles and make them seams
 783         if (count > 2)
 784                 match = -1;
 785         return match;
 786 }
 787
 788 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 789 {
 790         int i, *n;
 791         const int *e;
 792         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 793         {
 794                 n[0] = Mod_FindTriangleWithEdge(elements, numtriangles, e[1], e[0], i);
 795                 n[1] = Mod_FindTriangleWithEdge(elements, numtriangles, e[2], e[1], i);
 796                 n[2] = Mod_FindTriangleWithEdge(elements, numtriangles, e[0], e[2], i);
 797         }
 798 }
 799 #endif
 800
 801 void Mod_ValidateElements(int *elements, int numtriangles, int firstvertex, int numverts, const char *filename, int fileline)
 802 {
 803         int i, warned = false, endvertex = firstvertex + numverts;
 804         for (i = 0;i < numtriangles * 3;i++)
 805         {
 806                 if (elements[i] < firstvertex || elements[i] >= endvertex)
 807                 {
 808                         if (!warned)
 809                         {
 810                                 warned = true;
 811                                 Con_Printf("Mod_ValidateElements: out of bounds elements detected at %s:%d\n", filename, fileline);
 812                         }
 813                         elements[i] = firstvertex;
 814                 }
 815         }
 816 }
 817
 818 // warning: this is an expensive function!
 819 void Mod_BuildNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const int *elements, float *normal3f, qboolean areaweighting)
 820 {
 821         int i, j;
 822         const int *element;
 823         float *vectorNormal;
 824         float areaNormal[3];
 825         // clear the vectors
 826         memset(normal3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 827         // process each vertex of each triangle and accumulate the results
 828         // use area-averaging, to make triangles with a big area have a bigger
 829         // weighting on the vertex normal than triangles with a small area
 830         // to do so, just add the 'normals' together (the bigger the area
 831         // the greater the length of the normal is
 832         element = elements;
 833         for (i = 0; i < numtriangles; i++, element += 3)
 834         {
 835                 TriangleNormal(
 836                         vertex3f + element[0] * 3,
 837                         vertex3f + element[1] * 3,
 838                         vertex3f + element[2] * 3,
 839                         areaNormal
 840                         );
 841
 842                 if (!areaweighting)
 843                         VectorNormalize(areaNormal);
 844
 845                 for (j = 0;j < 3;j++)
 846                 {
 847                         vectorNormal = normal3f + element[j] * 3;
 848                         vectorNormal[0] += areaNormal[0];
 849                         vectorNormal[1] += areaNormal[1];
 850                         vectorNormal[2] += areaNormal[2];
 851                 }
 852         }
 853         // and just normalize the accumulated vertex normal in the end
 854         vectorNormal = normal3f + 3 * firstvertex;
 855         for (i = 0; i < numvertices; i++, vectorNormal += 3)
 856                 VectorNormalize(vectorNormal);
 857 }
 858
 859 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)
 860 {
 861         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 862         // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 863         // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 864
 865         // 6 multiply, 9 subtract
 866         VectorSubtract(v1, v0, v10);
 867         VectorSubtract(v2, v0, v20);
 868         normal3f[0] = v20[1] * v10[2] - v20[2] * v10[1];
 869         normal3f[1] = v20[2] * v10[0] - v20[0] * v10[2];
 870         normal3f[2] = v20[0] * v10[1] - v20[1] * v10[0];
 871         // 12 multiply, 10 subtract
 872         tc10[1] = tc1[1] - tc0[1];
 873         tc20[1] = tc2[1] - tc0[1];
 874         svector3f[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 875         svector3f[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 876         svector3f[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 877         tc10[0] = tc1[0] - tc0[0];
 878         tc20[0] = tc2[0] - tc0[0];
 879         tvector3f[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 880         tvector3f[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 881         tvector3f[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 882         // 12 multiply, 4 add, 6 subtract
 883         f = DotProduct(svector3f, normal3f);
 884         svector3f[0] -= f * normal3f[0];
 885         svector3f[1] -= f * normal3f[1];
 886         svector3f[2] -= f * normal3f[2];
 887         f = DotProduct(tvector3f, normal3f);
 888         tvector3f[0] -= f * normal3f[0];
 889         tvector3f[1] -= f * normal3f[1];
 890         tvector3f[2] -= f * normal3f[2];
 891         // if texture is mapped the wrong way (counterclockwise), the tangents
 892         // have to be flipped, this is detected by calculating a normal from the
 893         // two tangents, and seeing if it is opposite the surface normal
 894         // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 895         CrossProduct(tvector3f, svector3f, tangentcross);
 896         if (DotProduct(tangentcross, normal3f) < 0)
 897         {
 898                 VectorNegate(svector3f, svector3f);
 899                 VectorNegate(tvector3f, tvector3f);
 900         }
 901 }
 902
 903 // warning: this is a very expensive function!
 904 void Mod_BuildTextureVectorsFromNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const float *texcoord2f, const float *normal3f, const int *elements, float *svector3f, float *tvector3f, qboolean areaweighting)
 905 {
 906         int i, tnum;
 907         float sdir[3], tdir[3], normal[3], *sv, *tv;
 908         const float *v0, *v1, *v2, *tc0, *tc1, *tc2, *n;
 909         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 910         const int *e;
 911         // clear the vectors
 912         memset(svector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 913         memset(tvector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 914         // process each vertex of each triangle and accumulate the results
 915         for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
 916         {
 917                 v0 = vertex3f + e[0] * 3;
 918                 v1 = vertex3f + e[1] * 3;
 919                 v2 = vertex3f + e[2] * 3;
 920                 tc0 = texcoord2f + e[0] * 2;
 921                 tc1 = texcoord2f + e[1] * 2;
 922                 tc2 = texcoord2f + e[2] * 2;
 923
 924                 // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 925                 // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 926
 927                 // calculate the edge directions and surface normal
 928                 // 6 multiply, 9 subtract
 929                 VectorSubtract(v1, v0, v10);
 930                 VectorSubtract(v2, v0, v20);
 931                 normal[0] = v20[1] * v10[2] - v20[2] * v10[1];
 932                 normal[1] = v20[2] * v10[0] - v20[0] * v10[2];
 933                 normal[2] = v20[0] * v10[1] - v20[1] * v10[0];
 934
 935                 // calculate the tangents
 936                 // 12 multiply, 10 subtract
 937                 tc10[1] = tc1[1] - tc0[1];
 938                 tc20[1] = tc2[1] - tc0[1];
 939                 sdir[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 940                 sdir[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 941                 sdir[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 942                 tc10[0] = tc1[0] - tc0[0];
 943                 tc20[0] = tc2[0] - tc0[0];
 944                 tdir[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 945                 tdir[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 946                 tdir[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 947
 948                 // if texture is mapped the wrong way (counterclockwise), the tangents
 949                 // have to be flipped, this is detected by calculating a normal from the
 950                 // two tangents, and seeing if it is opposite the surface normal
 951                 // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 952                 CrossProduct(tdir, sdir, tangentcross);
 953                 if (DotProduct(tangentcross, normal) < 0)
 954                 {
 955                         VectorNegate(sdir, sdir);
 956                         VectorNegate(tdir, tdir);
 957                 }
 958
 959                 if (!areaweighting)
 960                 {
 961                         VectorNormalize(sdir);
 962                         VectorNormalize(tdir);
 963                 }
 964                 for (i = 0;i < 3;i++)
 965                 {
 966                         VectorAdd(svector3f + e[i]*3, sdir, svector3f + e[i]*3);
 967                         VectorAdd(tvector3f + e[i]*3, tdir, tvector3f + e[i]*3);
 968                 }
 969         }
 970         // make the tangents completely perpendicular to the surface normal, and
 971         // then normalize them
 972         // 16 assignments, 2 divide, 2 sqrt, 2 negates, 14 adds, 24 multiplies
 973         for (i = 0, sv = svector3f + 3 * firstvertex, tv = tvector3f + 3 * firstvertex, n = normal3f + 3 * firstvertex;i < numvertices;i++, sv += 3, tv += 3, n += 3)
 974         {
 975                 f = -DotProduct(sv, n);
 976                 VectorMA(sv, f, n, sv);
 977                 VectorNormalize(sv);
 978                 f = -DotProduct(tv, n);
 979                 VectorMA(tv, f, n, tv);
 980                 VectorNormalize(tv);
 981         }
 982 }
 983
 984 void Mod_AllocSurfMesh(mempool_t *mempool, int numvertices, int numtriangles, qboolean lightmapoffsets, qboolean vertexcolors, qboolean neighbors)
 985 {
 986         unsigned char *data;
 987         data = (unsigned char *)Mem_Alloc(mempool, numvertices * (3 + 3 + 3 + 3 + 2 + 2 + (vertexcolors ? 4 : 0)) * sizeof(float) + numvertices * (lightmapoffsets ? 1 : 0) * sizeof(int) + numtriangles * (3 + (neighbors ? 3 : 0)) * sizeof(int) + (numvertices <= 65536 ? numtriangles * sizeof(unsigned short[3]) : 0));
 988         loadmodel->surfmesh.num_vertices = numvertices;
 989         loadmodel->surfmesh.num_triangles = numtriangles;
 990         if (loadmodel->surfmesh.num_vertices)
 991         {
 992                 loadmodel->surfmesh.data_vertex3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 993                 loadmodel->surfmesh.data_svector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 994                 loadmodel->surfmesh.data_tvector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 995                 loadmodel->surfmesh.data_normal3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 996                 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 997                 loadmodel->surfmesh.data_texcoordlightmap2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 998                 if (vertexcolors)
 999                         loadmodel->surfmesh.data_lightmapcolor4f = (float *)data, data += sizeof(float[4]) * loadmodel->surfmesh.num_vertices;
1000                 if (lightmapoffsets)
1001                         loadmodel->surfmesh.data_lightmapoffsets = (int *)data, data += sizeof(int) * loadmodel->surfmesh.num_vertices;
1002         }
1003         if (loadmodel->surfmesh.num_triangles)
1004         {
1005                 loadmodel->surfmesh.data_element3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
1006                 if (neighbors)
1007                         loadmodel->surfmesh.data_neighbor3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
1008                 if (loadmodel->surfmesh.num_vertices <= 65536)
1009                         loadmodel->surfmesh.data_element3s = (unsigned short *)data, data += sizeof(unsigned short[3]) * loadmodel->surfmesh.num_triangles;
1010         }
1011 }
1012
1013 shadowmesh_t *Mod_ShadowMesh_Alloc(mempool_t *mempool, int maxverts, int maxtriangles, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, int light, int neighbors, int expandable)
1014 {
1015         shadowmesh_t *newmesh;
1016         unsigned char *data;
1017         int size;
1018         size = sizeof(shadowmesh_t);
1019         size += maxverts * sizeof(float[3]);
1020         if (light)
1021                 size += maxverts * sizeof(float[11]);
1022         size += maxtriangles * sizeof(int[3]);
1023         if (maxverts <= 65536)
1024                 size += maxtriangles * sizeof(unsigned short[3]);
1025         if (neighbors)
1026                 size += maxtriangles * sizeof(int[3]);
1027         if (expandable)
1028                 size += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *) + maxverts * sizeof(shadowmeshvertexhash_t);
1029         data = (unsigned char *)Mem_Alloc(mempool, size);
1030         newmesh = (shadowmesh_t *)data;data += sizeof(*newmesh);
1031         newmesh->map_diffuse = map_diffuse;
1032         newmesh->map_specular = map_specular;
1033         newmesh->map_normal = map_normal;
1034         newmesh->maxverts = maxverts;
1035         newmesh->maxtriangles = maxtriangles;
1036         newmesh->numverts = 0;
1037         newmesh->numtriangles = 0;
1038         memset(newmesh->sideoffsets, 0, sizeof(newmesh->sideoffsets));
1039         memset(newmesh->sidetotals, 0, sizeof(newmesh->sidetotals));
1040
1041         newmesh->vertex3f = (float *)data;data += maxverts * sizeof(float[3]);
1042         if (light)
1043         {
1044                 newmesh->svector3f = (float *)data;data += maxverts * sizeof(float[3]);
1045                 newmesh->tvector3f = (float *)data;data += maxverts * sizeof(float[3]);
1046                 newmesh->normal3f = (float *)data;data += maxverts * sizeof(float[3]);
1047                 newmesh->texcoord2f = (float *)data;data += maxverts * sizeof(float[2]);
1048         }
1049         newmesh->element3i = (int *)data;data += maxtriangles * sizeof(int[3]);
1050         if (neighbors)
1051         {
1052                 newmesh->neighbor3i = (int *)data;data += maxtriangles * sizeof(int[3]);
1053         }
1054         if (expandable)
1055         {
1056                 newmesh->vertexhashtable = (shadowmeshvertexhash_t **)data;data += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *);
1057                 newmesh->vertexhashentries = (shadowmeshvertexhash_t *)data;data += maxverts * sizeof(shadowmeshvertexhash_t);
1058         }
1059         if (maxverts <= 65536)
1060                 newmesh->element3s = (unsigned short *)data;data += maxtriangles * sizeof(unsigned short[3]);
1061         return newmesh;
1062 }
1063
1064 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh, int light, int neighbors)
1065 {
1066         shadowmesh_t *newmesh;
1067         newmesh = Mod_ShadowMesh_Alloc(mempool, oldmesh->numverts, oldmesh->numtriangles, oldmesh->map_diffuse, oldmesh->map_specular, oldmesh->map_normal, light, neighbors, false);
1068         newmesh->numverts = oldmesh->numverts;
1069         newmesh->numtriangles = oldmesh->numtriangles;
1070         memcpy(newmesh->sideoffsets, oldmesh->sideoffsets, sizeof(oldmesh->sideoffsets));
1071         memcpy(newmesh->sidetotals, oldmesh->sidetotals, sizeof(oldmesh->sidetotals));
1072
1073         memcpy(newmesh->vertex3f, oldmesh->vertex3f, oldmesh->numverts * sizeof(float[3]));
1074         if (newmesh->svector3f && oldmesh->svector3f)
1075         {
1076                 memcpy(newmesh->svector3f, oldmesh->svector3f, oldmesh->numverts * sizeof(float[3]));
1077                 memcpy(newmesh->tvector3f, oldmesh->tvector3f, oldmesh->numverts * sizeof(float[3]));
1078                 memcpy(newmesh->normal3f, oldmesh->normal3f, oldmesh->numverts * sizeof(float[3]));
1079                 memcpy(newmesh->texcoord2f, oldmesh->texcoord2f, oldmesh->numverts * sizeof(float[2]));
1080         }
1081         memcpy(newmesh->element3i, oldmesh->element3i, oldmesh->numtriangles * sizeof(int[3]));
1082         if (newmesh->neighbor3i && oldmesh->neighbor3i)
1083                 memcpy(newmesh->neighbor3i, oldmesh->neighbor3i, oldmesh->numtriangles * sizeof(int[3]));
1084         return newmesh;
1085 }
1086
1087 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *vertex14f)
1088 {
1089         int hashindex, vnum;
1090         shadowmeshvertexhash_t *hash;
1091         // this uses prime numbers intentionally
1092         hashindex = (unsigned int) (vertex14f[0] * 2003 + vertex14f[1] * 4001 + vertex14f[2] * 7919) % SHADOWMESHVERTEXHASH;
1093         for (hash = mesh->vertexhashtable[hashindex];hash;hash = hash->next)
1094         {
1095                 vnum = (hash - mesh->vertexhashentries);
1096                 if ((mesh->vertex3f == NULL || (mesh->vertex3f[vnum * 3 + 0] == vertex14f[0] && mesh->vertex3f[vnum * 3 + 1] == vertex14f[1] && mesh->vertex3f[vnum * 3 + 2] == vertex14f[2]))
1097                  && (mesh->svector3f == NULL || (mesh->svector3f[vnum * 3 + 0] == vertex14f[3] && mesh->svector3f[vnum * 3 + 1] == vertex14f[4] && mesh->svector3f[vnum * 3 + 2] == vertex14f[5]))
1098                  && (mesh->tvector3f == NULL || (mesh->tvector3f[vnum * 3 + 0] == vertex14f[6] && mesh->tvector3f[vnum * 3 + 1] == vertex14f[7] && mesh->tvector3f[vnum * 3 + 2] == vertex14f[8]))
1099                  && (mesh->normal3f == NULL || (mesh->normal3f[vnum * 3 + 0] == vertex14f[9] && mesh->normal3f[vnum * 3 + 1] == vertex14f[10] && mesh->normal3f[vnum * 3 + 2] == vertex14f[11]))
1100                  && (mesh->texcoord2f == NULL || (mesh->texcoord2f[vnum * 2 + 0] == vertex14f[12] && mesh->texcoord2f[vnum * 2 + 1] == vertex14f[13])))
1101                         return hash - mesh->vertexhashentries;
1102         }
1103         vnum = mesh->numverts++;
1104         hash = mesh->vertexhashentries + vnum;
1105         hash->next = mesh->vertexhashtable[hashindex];
1106         mesh->vertexhashtable[hashindex] = hash;
1107         if (mesh->vertex3f) {mesh->vertex3f[vnum * 3 + 0] = vertex14f[0];mesh->vertex3f[vnum * 3 + 1] = vertex14f[1];mesh->vertex3f[vnum * 3 + 2] = vertex14f[2];}
1108         if (mesh->svector3f) {mesh->svector3f[vnum * 3 + 0] = vertex14f[3];mesh->svector3f[vnum * 3 + 1] = vertex14f[4];mesh->svector3f[vnum * 3 + 2] = vertex14f[5];}
1109         if (mesh->tvector3f) {mesh->tvector3f[vnum * 3 + 0] = vertex14f[6];mesh->tvector3f[vnum * 3 + 1] = vertex14f[7];mesh->tvector3f[vnum * 3 + 2] = vertex14f[8];}
1110         if (mesh->normal3f) {mesh->normal3f[vnum * 3 + 0] = vertex14f[9];mesh->normal3f[vnum * 3 + 1] = vertex14f[10];mesh->normal3f[vnum * 3 + 2] = vertex14f[11];}
1111         if (mesh->texcoord2f) {mesh->texcoord2f[vnum * 2 + 0] = vertex14f[12];mesh->texcoord2f[vnum * 2 + 1] = vertex14f[13];}
1112         return vnum;
1113 }
1114
1115 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex14f)
1116 {
1117         if (mesh->numtriangles == 0)
1118         {
1119                 // set the properties on this empty mesh to be more favorable...
1120                 // (note: this case only occurs for the first triangle added to a new mesh chain)
1121                 mesh->map_diffuse = map_diffuse;
1122                 mesh->map_specular = map_specular;
1123                 mesh->map_normal = map_normal;
1124         }
1125         while (mesh->map_diffuse != map_diffuse || mesh->map_specular != map_specular || mesh->map_normal != map_normal || mesh->numverts + 3 > mesh->maxverts || mesh->numtriangles + 1 > mesh->maxtriangles)
1126         {
1127                 if (mesh->next == NULL)
1128                         mesh->next = Mod_ShadowMesh_Alloc(mempool, max(mesh->maxverts, 300), max(mesh->maxtriangles, 100), map_diffuse, map_specular, map_normal, mesh->svector3f != NULL, mesh->neighbor3i != NULL, true);
1129                 mesh = mesh->next;
1130         }
1131         mesh->element3i[mesh->numtriangles * 3 + 0] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 0);
1132         mesh->element3i[mesh->numtriangles * 3 + 1] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 1);
1133         mesh->element3i[mesh->numtriangles * 3 + 2] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 2);
1134         mesh->numtriangles++;
1135 }
1136
1137 void Mod_ShadowMesh_AddMesh(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, const float *vertex3f, const float *svector3f, const float *tvector3f, const float *normal3f, const float *texcoord2f, int numtris, const int *element3i)
1138 {
1139         int i, j, e;
1140         float vbuf[3*14], *v;
1141         memset(vbuf, 0, sizeof(vbuf));
1142         for (i = 0;i < numtris;i++)
1143         {
1144                 for (j = 0, v = vbuf;j < 3;j++, v += 14)
1145                 {
1146                         e = *element3i++;
1147                         if (vertex3f)
1148                         {
1149                                 v[0] = vertex3f[e * 3 + 0];
1150                                 v[1] = vertex3f[e * 3 + 1];
1151                                 v[2] = vertex3f[e * 3 + 2];
1152                         }
1153                         if (svector3f)
1154                         {
1155                                 v[3] = svector3f[e * 3 + 0];
1156                                 v[4] = svector3f[e * 3 + 1];
1157                                 v[5] = svector3f[e * 3 + 2];
1158                         }
1159                         if (tvector3f)
1160                         {
1161                                 v[6] = tvector3f[e * 3 + 0];
1162                                 v[7] = tvector3f[e * 3 + 1];
1163                                 v[8] = tvector3f[e * 3 + 2];
1164                         }
1165                         if (normal3f)
1166                         {
1167                                 v[9] = normal3f[e * 3 + 0];
1168                                 v[10] = normal3f[e * 3 + 1];
1169                                 v[11] = normal3f[e * 3 + 2];
1170                         }
1171                         if (texcoord2f)
1172                         {
1173                                 v[12] = texcoord2f[e * 2 + 0];
1174                                 v[13] = texcoord2f[e * 2 + 1];
1175                         }
1176                 }
1177                 Mod_ShadowMesh_AddTriangle(mempool, mesh, map_diffuse, map_specular, map_normal, vbuf);
1178         }
1179
1180         // the triangle calculation can take a while, so let's do a keepalive here
1181         CL_KeepaliveMessage(false);
1182 }
1183
1184 shadowmesh_t *Mod_ShadowMesh_Begin(mempool_t *mempool, int maxverts, int maxtriangles, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, int light, int neighbors, int expandable)
1185 {
1186         // the preparation before shadow mesh initialization can take a while, so let's do a keepalive here
1187         CL_KeepaliveMessage(false);
1188
1189         return Mod_ShadowMesh_Alloc(mempool, maxverts, maxtriangles, map_diffuse, map_specular, map_normal, light, neighbors, expandable);
1190 }
1191
1192 static void Mod_ShadowMesh_CreateVBOs(shadowmesh_t *mesh, mempool_t *mempool)
1193 {
1194         if (!mesh->numverts)
1195                 return;
1196
1197         // build r_vertexmesh_t array
1198         // (compressed interleaved array for D3D)
1199         if (!mesh->vertexmesh && mesh->texcoord2f && vid.useinterleavedarrays)
1200         {
1201                 int vertexindex;
1202                 int numvertices = mesh->numverts;
1203                 r_vertexmesh_t *vertexmesh;
1204                 mesh->vertexmesh = vertexmesh = (r_vertexmesh_t*)Mem_Alloc(mempool, numvertices * sizeof(*mesh->vertexmesh));
1205                 for (vertexindex = 0;vertexindex < numvertices;vertexindex++, vertexmesh++)
1206                 {
1207                         VectorCopy(mesh->vertex3f + 3*vertexindex, vertexmesh->vertex3f);
1208                         VectorScale(mesh->svector3f + 3*vertexindex, 1.0f, vertexmesh->svector3f);
1209                         VectorScale(mesh->tvector3f + 3*vertexindex, 1.0f, vertexmesh->tvector3f);
1210                         VectorScale(mesh->normal3f + 3*vertexindex, 1.0f, vertexmesh->normal3f);
1211                         Vector2Copy(mesh->texcoord2f + 2*vertexindex, vertexmesh->texcoordtexture2f);
1212                 }
1213         }
1214
1215         // upload r_vertexmesh_t array as a buffer
1216         if (mesh->vertexmesh && !mesh->vertexmeshbuffer)
1217                 mesh->vertexmeshbuffer = R_Mesh_CreateMeshBuffer(mesh->vertexmesh, mesh->numverts * sizeof(*mesh->vertexmesh), loadmodel->name, false, false, false);
1218
1219         // upload vertex3f array as a buffer
1220         if (mesh->vertex3f && !mesh->vertex3fbuffer)
1221                 mesh->vertex3fbuffer = R_Mesh_CreateMeshBuffer(mesh->vertex3f, mesh->numverts * sizeof(float[3]), loadmodel->name, false, false, false);
1222
1223         // upload short indices as a buffer
1224         if (mesh->element3s && !mesh->element3s_indexbuffer)
1225                 mesh->element3s_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3s, mesh->numtriangles * sizeof(short[3]), loadmodel->name, true, false, true);
1226
1227         // upload int indices as a buffer
1228         if (mesh->element3i && !mesh->element3i_indexbuffer && !mesh->element3s)
1229                 mesh->element3i_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3i, mesh->numtriangles * sizeof(int[3]), loadmodel->name, true, false, false);
1230
1231         // vertex buffer is several arrays and we put them in the same buffer
1232         //
1233         // is this wise?  the texcoordtexture2f array is used with dynamic
1234         // vertex/svector/tvector/normal when rendering animated models, on the
1235         // other hand animated models don't use a lot of vertices anyway...
1236         if (!mesh->vbo_vertexbuffer && !vid.useinterleavedarrays)
1237         {
1238                 size_t size;
1239                 unsigned char *mem;
1240                 size = 0;
1241                 mesh->vbooffset_vertex3f           = size;if (mesh->vertex3f          ) size += mesh->numverts * sizeof(float[3]);
1242                 mesh->vbooffset_svector3f          = size;if (mesh->svector3f         ) size += mesh->numverts * sizeof(float[3]);
1243                 mesh->vbooffset_tvector3f          = size;if (mesh->tvector3f         ) size += mesh->numverts * sizeof(float[3]);
1244                 mesh->vbooffset_normal3f           = size;if (mesh->normal3f          ) size += mesh->numverts * sizeof(float[3]);
1245                 mesh->vbooffset_texcoord2f         = size;if (mesh->texcoord2f        ) size += mesh->numverts * sizeof(float[2]);
1246                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
1247                 if (mesh->vertex3f          ) memcpy(mem + mesh->vbooffset_vertex3f          , mesh->vertex3f          , mesh->numverts * sizeof(float[3]));
1248                 if (mesh->svector3f         ) memcpy(mem + mesh->vbooffset_svector3f         , mesh->svector3f         , mesh->numverts * sizeof(float[3]));
1249                 if (mesh->tvector3f         ) memcpy(mem + mesh->vbooffset_tvector3f         , mesh->tvector3f         , mesh->numverts * sizeof(float[3]));
1250                 if (mesh->normal3f          ) memcpy(mem + mesh->vbooffset_normal3f          , mesh->normal3f          , mesh->numverts * sizeof(float[3]));
1251                 if (mesh->texcoord2f        ) memcpy(mem + mesh->vbooffset_texcoord2f        , mesh->texcoord2f        , mesh->numverts * sizeof(float[2]));
1252                 mesh->vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, "shadowmesh", false, false, false);
1253                 Mem_Free(mem);
1254         }
1255 }
1256
1257 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh, qboolean light, qboolean neighbors, qboolean createvbo)
1258 {
1259         shadowmesh_t *mesh, *newmesh, *nextmesh;
1260         // reallocate meshs to conserve space
1261         for (mesh = firstmesh, firstmesh = NULL;mesh;mesh = nextmesh)
1262         {
1263                 nextmesh = mesh->next;
1264                 if (mesh->numverts >= 3 && mesh->numtriangles >= 1)
1265                 {
1266                         newmesh = Mod_ShadowMesh_ReAlloc(mempool, mesh, light, neighbors);
1267                         newmesh->next = firstmesh;
1268                         firstmesh = newmesh;
1269                         if (newmesh->element3s)
1270                         {
1271                                 int i;
1272                                 for (i = 0;i < newmesh->numtriangles*3;i++)
1273                                         newmesh->element3s[i] = newmesh->element3i[i];
1274                         }
1275                         if (createvbo)
1276                                 Mod_ShadowMesh_CreateVBOs(newmesh, mempool);
1277                 }
1278                 Mem_Free(mesh);
1279         }
1280
1281         // this can take a while, so let's do a keepalive here
1282         CL_KeepaliveMessage(false);
1283
1284         return firstmesh;
1285 }
1286
1287 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius)
1288 {
1289         int i;
1290         shadowmesh_t *mesh;
1291         vec3_t nmins, nmaxs, ncenter, temp;
1292         float nradius2, dist2, *v;
1293         VectorClear(nmins);
1294         VectorClear(nmaxs);
1295         // calculate bbox
1296         for (mesh = firstmesh;mesh;mesh = mesh->next)
1297         {
1298                 if (mesh == firstmesh)
1299                 {
1300                         VectorCopy(mesh->vertex3f, nmins);
1301                         VectorCopy(mesh->vertex3f, nmaxs);
1302                 }
1303                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1304                 {
1305                         if (nmins[0] > v[0]) nmins[0] = v[0];if (nmaxs[0] < v[0]) nmaxs[0] = v[0];
1306                         if (nmins[1] > v[1]) nmins[1] = v[1];if (nmaxs[1] < v[1]) nmaxs[1] = v[1];
1307                         if (nmins[2] > v[2]) nmins[2] = v[2];if (nmaxs[2] < v[2]) nmaxs[2] = v[2];
1308                 }
1309         }
1310         // calculate center and radius
1311         ncenter[0] = (nmins[0] + nmaxs[0]) * 0.5f;
1312         ncenter[1] = (nmins[1] + nmaxs[1]) * 0.5f;
1313         ncenter[2] = (nmins[2] + nmaxs[2]) * 0.5f;
1314         nradius2 = 0;
1315         for (mesh = firstmesh;mesh;mesh = mesh->next)
1316         {
1317                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1318                 {
1319                         VectorSubtract(v, ncenter, temp);
1320                         dist2 = DotProduct(temp, temp);
1321                         if (nradius2 < dist2)
1322                                 nradius2 = dist2;
1323                 }
1324         }
1325         // return data
1326         if (mins)
1327                 VectorCopy(nmins, mins);
1328         if (maxs)
1329                 VectorCopy(nmaxs, maxs);
1330         if (center)
1331                 VectorCopy(ncenter, center);
1332         if (radius)
1333                 *radius = sqrt(nradius2);
1334 }
1335
1336 void Mod_ShadowMesh_Free(shadowmesh_t *mesh)
1337 {
1338         shadowmesh_t *nextmesh;
1339         for (;mesh;mesh = nextmesh)
1340         {
1341                 if (mesh->vertex3fbuffer)
1342                         R_Mesh_DestroyMeshBuffer(mesh->vertex3fbuffer);
1343                 if (mesh->vertexmeshbuffer)
1344                         R_Mesh_DestroyMeshBuffer(mesh->vertexmeshbuffer);
1345                 if (mesh->element3i_indexbuffer)
1346                         R_Mesh_DestroyMeshBuffer(mesh->element3i_indexbuffer);
1347                 if (mesh->element3s_indexbuffer)
1348                         R_Mesh_DestroyMeshBuffer(mesh->element3s_indexbuffer);
1349                 if (mesh->vbo_vertexbuffer)
1350                         R_Mesh_DestroyMeshBuffer(mesh->vbo_vertexbuffer);
1351                 nextmesh = mesh->next;
1352                 Mem_Free(mesh);
1353         }
1354 }
1355
1356 void Mod_CreateCollisionMesh(dp_model_t *mod)
1357 {
1358         int k, numcollisionmeshtriangles;
1359         qboolean usesinglecollisionmesh = false;
1360         const msurface_t *surface = NULL;
1361
1362         mempool_t *mempool = mod->mempool;
1363         if (!mempool && mod->brush.parentmodel)
1364                 mempool = mod->brush.parentmodel->mempool;
1365         // make a single combined collision mesh for physics engine use
1366         // TODO rewrite this to use the collision brushes as source, to fix issues with e.g. common/caulk which creates no drawsurface
1367         numcollisionmeshtriangles = 0;
1368         for (k = 0;k < mod->nummodelsurfaces;k++)
1369         {
1370                 surface = mod->data_surfaces + mod->firstmodelsurface + k;
1371                 if (!strcmp(surface->texture->name, "collision")) // found collision mesh
1372                 {
1373                         usesinglecollisionmesh = true;
1374                         numcollisionmeshtriangles = surface->num_triangles;
1375                         break;
1376                 }
1377                 if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1378                         continue;
1379                 numcollisionmeshtriangles += surface->num_triangles;
1380         }
1381         mod->brush.collisionmesh = Mod_ShadowMesh_Begin(mempool, numcollisionmeshtriangles * 3, numcollisionmeshtriangles, NULL, NULL, NULL, false, false, true);
1382         if (usesinglecollisionmesh)
1383                 Mod_ShadowMesh_AddMesh(mempool, mod->brush.collisionmesh, NULL, NULL, NULL, mod->surfmesh.data_vertex3f, NULL, NULL, NULL, NULL, surface->num_triangles, (mod->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
1384         else
1385         {
1386                 for (k = 0;k < mod->nummodelsurfaces;k++)
1387                 {
1388                         surface = mod->data_surfaces + mod->firstmodelsurface + k;
1389                         if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1390                                 continue;
1391                         Mod_ShadowMesh_AddMesh(mempool, mod->brush.collisionmesh, NULL, NULL, NULL, mod->surfmesh.data_vertex3f, NULL, NULL, NULL, NULL, surface->num_triangles, (mod->surfmesh.data_element3i + 3 * surface->num_firsttriangle));
1392                 }
1393         }
1394         mod->brush.collisionmesh = Mod_ShadowMesh_Finish(mempool, mod->brush.collisionmesh, false, false, false);
1395 }
1396
1397 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)
1398 {
1399         float v[3], tc[3];
1400         v[0] = ix;
1401         v[1] = iy;
1402         if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
1403                 v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
1404         else
1405                 v[2] = 0;
1406         Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
1407         Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
1408         texcoord2f[0] = tc[0];
1409         texcoord2f[1] = tc[1];
1410 }
1411
1412 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)
1413 {
1414         float vup[3], vdown[3], vleft[3], vright[3];
1415         float tcup[3], tcdown[3], tcleft[3], tcright[3];
1416         float sv[3], tv[3], nl[3];
1417         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
1418         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
1419         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
1420         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
1421         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
1422         Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
1423         Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
1424         VectorAdd(svector3f, sv, svector3f);
1425         VectorAdd(tvector3f, tv, tvector3f);
1426         VectorAdd(normal3f, nl, normal3f);
1427         Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
1428         VectorAdd(svector3f, sv, svector3f);
1429         VectorAdd(tvector3f, tv, tvector3f);
1430         VectorAdd(normal3f, nl, normal3f);
1431         Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
1432         VectorAdd(svector3f, sv, svector3f);
1433         VectorAdd(tvector3f, tv, tvector3f);
1434         VectorAdd(normal3f, nl, normal3f);
1435 }
1436
1437 void Mod_ConstructTerrainPatchFromBGRA(const unsigned char *imagepixels, int imagewidth, int imageheight, int x1, int y1, int width, int height, int *element3i, int *neighbor3i, float *vertex3f, float *svector3f, float *tvector3f, float *normal3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
1438 {
1439         int x, y, ix, iy, *e;
1440         e = element3i;
1441         for (y = 0;y < height;y++)
1442         {
1443                 for (x = 0;x < width;x++)
1444                 {
1445                         e[0] = (y + 1) * (width + 1) + (x + 0);
1446                         e[1] = (y + 0) * (width + 1) + (x + 0);
1447                         e[2] = (y + 1) * (width + 1) + (x + 1);
1448                         e[3] = (y + 0) * (width + 1) + (x + 0);
1449                         e[4] = (y + 0) * (width + 1) + (x + 1);
1450                         e[5] = (y + 1) * (width + 1) + (x + 1);
1451                         e += 6;
1452                 }
1453         }
1454         Mod_BuildTriangleNeighbors(neighbor3i, element3i, width*height*2);
1455         for (y = 0, iy = y1;y < height + 1;y++, iy++)
1456                 for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
1457                         Mod_GetTerrainVertexFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
1458 }
1459
1460 #if 0
1461 void Mod_Terrain_SurfaceRecurseChunk(dp_model_t *model, int stepsize, int x, int y)
1462 {
1463         float mins[3];
1464         float maxs[3];
1465         float chunkwidth = min(stepsize, model->terrain.width - 1 - x);
1466         float chunkheight = min(stepsize, model->terrain.height - 1 - y);
1467         float viewvector[3];
1468         unsigned int firstvertex;
1469         unsigned int *e;
1470         float *v;
1471         if (chunkwidth < 2 || chunkheight < 2)
1472                 return;
1473         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]);
1474         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]);
1475         viewvector[0] = bound(mins[0], localvieworigin, maxs[0]) - model->terrain.vieworigin[0];
1476         viewvector[1] = bound(mins[1], localvieworigin, maxs[1]) - model->terrain.vieworigin[1];
1477         viewvector[2] = bound(mins[2], localvieworigin, maxs[2]) - model->terrain.vieworigin[2];
1478         if (stepsize > 1 && VectorLength(viewvector) < stepsize*model->terrain.scale[0]*r_terrain_lodscale.value)
1479         {
1480                 // too close for this stepsize, emit as 4 chunks instead
1481                 stepsize /= 2;
1482                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y);
1483                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y);
1484                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y+stepsize);
1485                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y+stepsize);
1486                 return;
1487         }
1488         // emit the geometry at stepsize into our vertex buffer / index buffer
1489         // we add two columns and two rows for skirt
1490         outwidth = chunkwidth+2;
1491         outheight = chunkheight+2;
1492         outwidth2 = outwidth-1;
1493         outheight2 = outheight-1;
1494         outwidth3 = outwidth+1;
1495         outheight3 = outheight+1;
1496         firstvertex = numvertices;
1497         e = model->terrain.element3i + numtriangles;
1498         numtriangles += chunkwidth*chunkheight*2+chunkwidth*2*2+chunkheight*2*2;
1499         v = model->terrain.vertex3f + numvertices;
1500         numvertices += (chunkwidth+1)*(chunkheight+1)+(chunkwidth+1)*2+(chunkheight+1)*2;
1501         // emit the triangles (note: the skirt is treated as two extra rows and two extra columns)
1502         for (ty = 0;ty < outheight;ty++)
1503         {
1504                 for (tx = 0;tx < outwidth;tx++)
1505                 {
1506                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1507                         *e++ = firstvertex + (ty  )*outwidth3+(tx+1);
1508                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1509                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1510                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1511                         *e++ = firstvertex + (ty+1)*outwidth3+(tx  );
1512                 }
1513         }
1514         // TODO: emit surface vertices (x+tx*stepsize, y+ty*stepsize)
1515         for (ty = 0;ty <= outheight;ty++)
1516         {
1517                 skirtrow = ty == 0 || ty == outheight;
1518                 ry = y+bound(1, ty, outheight)*stepsize;
1519                 for (tx = 0;tx <= outwidth;tx++)
1520                 {
1521                         skirt = skirtrow || tx == 0 || tx == outwidth;
1522                         rx = x+bound(1, tx, outwidth)*stepsize;
1523                         v[0] = rx*scale[0];
1524                         v[1] = ry*scale[1];
1525                         v[2] = heightmap[ry*terrainwidth+rx]*scale[2];
1526                         v += 3;
1527                 }
1528         }
1529         // TODO: emit skirt vertices
1530 }
1531
1532 void Mod_Terrain_UpdateSurfacesForViewOrigin(dp_model_t *model)
1533 {
1534         for (y = 0;y < model->terrain.size[1];y += model->terrain.
1535         Mod_Terrain_SurfaceRecurseChunk(model, model->terrain.maxstepsize, x, y);
1536         Mod_Terrain_BuildChunk(model,
1537 }
1538 #endif
1539
1540 int Mod_LoadQ3Shaders_EnumerateWaveFunc(const char *s)
1541 {
1542         int offset = 0;
1543         if (!strncasecmp(s, "user", 4)) // parse stuff like "user1sin", always user<n>func
1544         {
1545                 offset = bound(0, s[4] - '0', 9);
1546                 offset = (offset + 1) << Q3WAVEFUNC_USER_SHIFT;
1547                 s += 4;
1548                 if(*s)
1549                         ++s;
1550         }
1551         if (!strcasecmp(s, "sin"))             return offset | Q3WAVEFUNC_SIN;
1552         if (!strcasecmp(s, "square"))          return offset | Q3WAVEFUNC_SQUARE;
1553         if (!strcasecmp(s, "triangle"))        return offset | Q3WAVEFUNC_TRIANGLE;
1554         if (!strcasecmp(s, "sawtooth"))        return offset | Q3WAVEFUNC_SAWTOOTH;
1555         if (!strcasecmp(s, "inversesawtooth")) return offset | Q3WAVEFUNC_INVERSESAWTOOTH;
1556         if (!strcasecmp(s, "noise"))           return offset | Q3WAVEFUNC_NOISE;
1557         if (!strcasecmp(s, "none"))            return offset | Q3WAVEFUNC_NONE;
1558         Con_DPrintf("Mod_LoadQ3Shaders: unknown wavefunc %s\n", s);
1559         return offset | Q3WAVEFUNC_NONE;
1560 }
1561
1562 void Mod_FreeQ3Shaders(void)
1563 {
1564         Mem_FreePool(&q3shaders_mem);
1565 }
1566
1567 static void Q3Shader_AddToHash (q3shaderinfo_t* shader)
1568 {
1569         unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)shader->name, strlen (shader->name));
1570         q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1571         q3shader_hash_entry_t* lastEntry = NULL;
1572         while (entry != NULL)
1573         {
1574                 if (strcasecmp (entry->shader.name, shader->name) == 0)
1575                 {
1576                         // redeclaration
1577                         if(shader->dpshaderkill)
1578                         {
1579                                 // killed shader is a redeclarion? we can safely ignore it
1580                                 return;
1581                         }
1582                         else if(entry->shader.dpshaderkill)
1583                         {
1584                                 // replace the old shader!
1585                                 // this will skip the entry allocating part
1586                                 // below and just replace the shader
1587                                 break;
1588                         }
1589                         else
1590                         {
1591                                 unsigned char *start, *end, *start2;
1592                                 start = (unsigned char *) (&shader->Q3SHADERINFO_COMPARE_START);
1593                                 end = ((unsigned char *) (&shader->Q3SHADERINFO_COMPARE_END)) + sizeof(shader->Q3SHADERINFO_COMPARE_END);
1594                                 start2 = (unsigned char *) (&entry->shader.Q3SHADERINFO_COMPARE_START);
1595                                 if(memcmp(start, start2, end - start))
1596                                         Con_DPrintf("Shader '%s' already defined, ignoring mismatching redeclaration\n", shader->name);
1597                                 else
1598                                         Con_DPrintf("Shader '%s' already defined\n", shader->name);
1599                                 return;
1600                         }
1601                 }
1602                 lastEntry = entry;
1603                 entry = entry->chain;
1604         }
1605         if (entry == NULL)
1606         {
1607                 if (lastEntry->shader.name[0] != 0)
1608                 {
1609                         /* Add to chain */
1610                         q3shader_hash_entry_t* newEntry = (q3shader_hash_entry_t*)
1611                           Mem_ExpandableArray_AllocRecord (&q3shader_data->hash_entries);
1612
1613                         while (lastEntry->chain != NULL) lastEntry = lastEntry->chain;
1614                         lastEntry->chain = newEntry;
1615                         newEntry->chain = NULL;
1616                         lastEntry = newEntry;
1617                 }
1618                 /* else: head of chain, in hash entry array */
1619                 entry = lastEntry;
1620         }
1621         memcpy (&entry->shader, shader, sizeof (q3shaderinfo_t));
1622 }
1623
1624 extern cvar_t mod_noshader_default_offsetmapping;
1625 extern cvar_t mod_q3shader_default_offsetmapping;
1626 extern cvar_t mod_q3shader_default_offsetmapping_scale;
1627 extern cvar_t mod_q3shader_default_offsetmapping_bias;
1628 extern cvar_t mod_q3shader_default_polygonoffset;
1629 extern cvar_t mod_q3shader_default_polygonfactor;
1630 void Mod_LoadQ3Shaders(void)
1631 {
1632         int j;
1633         int fileindex;
1634         fssearch_t *search;
1635         char *f;
1636         const char *text;
1637         q3shaderinfo_t shader;
1638         q3shaderinfo_layer_t *layer;
1639         int numparameters;
1640         char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
1641         char *custsurfaceparmnames[256]; // VorteX: q3map2 has 64 but well, someone will need more
1642         unsigned long custsurfaceparms[256];
1643         int numcustsurfaceparms;
1644         qboolean dpshaderkill;
1645
1646         Mod_FreeQ3Shaders();
1647
1648         q3shaders_mem = Mem_AllocPool("q3shaders", 0, NULL);
1649         q3shader_data = (q3shader_data_t*)Mem_Alloc (q3shaders_mem,
1650                 sizeof (q3shader_data_t));
1651         Mem_ExpandableArray_NewArray (&q3shader_data->hash_entries,
1652                 q3shaders_mem, sizeof (q3shader_hash_entry_t), 256);
1653         Mem_ExpandableArray_NewArray (&q3shader_data->char_ptrs,
1654                 q3shaders_mem, sizeof (char**), 256);
1655
1656         // parse custinfoparms.txt
1657         numcustsurfaceparms = 0;
1658         if ((text = f = (char *)FS_LoadFile("scripts/custinfoparms.txt", tempmempool, false, NULL)) != NULL)
1659         {
1660                 if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1661                         Con_DPrintf("scripts/custinfoparms.txt: contentflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1662                 else
1663                 {
1664                         while (COM_ParseToken_QuakeC(&text, false))
1665                                 if (!strcasecmp(com_token, "}"))
1666                                         break;
1667                         // custom surfaceflags section
1668                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1669                                 Con_DPrintf("scripts/custinfoparms.txt: surfaceflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1670                         else
1671                         {
1672                                 while(COM_ParseToken_QuakeC(&text, false))
1673                                 {
1674                                         if (!strcasecmp(com_token, "}"))
1675                                                 break;
1676                                         // register surfaceflag
1677                                         if (numcustsurfaceparms >= 256)
1678                                         {
1679                                                 Con_Printf("scripts/custinfoparms.txt: surfaceflags section parsing error - max 256 surfaceflags exceeded\n");
1680                                                 break;
1681                                         }
1682                                         // name
1683                                         j = strlen(com_token)+1;
1684                                         custsurfaceparmnames[numcustsurfaceparms] = (char *)Mem_Alloc(tempmempool, j);
1685                                         strlcpy(custsurfaceparmnames[numcustsurfaceparms], com_token, j+1);
1686                                         // value
1687                                         if (COM_ParseToken_QuakeC(&text, false))
1688                                                 custsurfaceparms[numcustsurfaceparms] = strtol(com_token, NULL, 0);
1689                                         else
1690                                                 custsurfaceparms[numcustsurfaceparms] = 0;
1691                                         numcustsurfaceparms++;
1692                                 }
1693                         }
1694                 }
1695                 Mem_Free(f);
1696         }
1697
1698         // parse shaders
1699         search = FS_Search("scripts/*.shader", true, false);
1700         if (!search)
1701                 return;
1702         for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
1703         {
1704                 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
1705                 if (!f)
1706                         continue;
1707                 while (COM_ParseToken_QuakeC(&text, false))
1708                 {
1709                         memset (&shader, 0, sizeof(shader));
1710                         shader.reflectmin = 0;
1711                         shader.reflectmax = 1;
1712                         shader.refractfactor = 1;
1713                         Vector4Set(shader.refractcolor4f, 1, 1, 1, 1);
1714                         shader.reflectfactor = 1;
1715                         Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
1716                         shader.r_water_wateralpha = 1;
1717                         shader.offsetmapping = (mod_q3shader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
1718                         shader.offsetscale = mod_q3shader_default_offsetmapping_scale.value;
1719                         shader.offsetbias = mod_q3shader_default_offsetmapping_bias.value;
1720                         shader.specularscalemod = 1;
1721                         shader.specularpowermod = 1;
1722                         shader.biaspolygonoffset = mod_q3shader_default_polygonoffset.value;
1723                         shader.biaspolygonfactor = mod_q3shader_default_polygonfactor.value;
1724
1725                         strlcpy(shader.name, com_token, sizeof(shader.name));
1726                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1727                         {
1728                                 Con_DPrintf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
1729                                 break;
1730                         }
1731                         while (COM_ParseToken_QuakeC(&text, false))
1732                         {
1733                                 if (!strcasecmp(com_token, "}"))
1734                                         break;
1735                                 if (!strcasecmp(com_token, "{"))
1736                                 {
1737                                         static q3shaderinfo_layer_t dummy;
1738                                         if (shader.numlayers < Q3SHADER_MAXLAYERS)
1739                                         {
1740                                                 layer = shader.layers + shader.numlayers++;
1741                                         }
1742                                         else
1743                                         {
1744                                                 // parse and process it anyway, just don't store it (so a map $lightmap or such stuff still is found)
1745                                                 memset(&dummy, 0, sizeof(dummy));
1746                                                 layer = &dummy;
1747                                         }
1748                                         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1749                                         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1750                                         layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1751                                         layer->blendfunc[0] = GL_ONE;
1752                                         layer->blendfunc[1] = GL_ZERO;
1753                                         while (COM_ParseToken_QuakeC(&text, false))
1754                                         {
1755                                                 if (!strcasecmp(com_token, "}"))
1756                                                         break;
1757                                                 if (!strcasecmp(com_token, "\n"))
1758                                                         continue;
1759                                                 numparameters = 0;
1760                                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1761                                                 {
1762                                                         if (j < TEXTURE_MAXFRAMES + 4)
1763                                                         {
1764                                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1765                                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1766                                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1767                                                                 else
1768                                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1769                                                                 numparameters = j + 1;
1770                                                         }
1771                                                         if (!COM_ParseToken_QuakeC(&text, true))
1772                                                                 break;
1773                                                 }
1774                                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1775                                                 //      parameter[j][0] = 0;
1776                                                 if (developer_insane.integer)
1777                                                 {
1778                                                         Con_DPrintf("%s %i: ", shader.name, shader.numlayers - 1);
1779                                                         for (j = 0;j < numparameters;j++)
1780                                                                 Con_DPrintf(" %s", parameter[j]);
1781                                                         Con_DPrint("\n");
1782                                                 }
1783                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
1784                                                 {
1785                                                         if (numparameters == 2)
1786                                                         {
1787                                                                 if (!strcasecmp(parameter[1], "add"))
1788                                                                 {
1789                                                                         layer->blendfunc[0] = GL_ONE;
1790                                                                         layer->blendfunc[1] = GL_ONE;
1791                                                                 }
1792                                                                 else if (!strcasecmp(parameter[1], "filter"))
1793                                                                 {
1794                                                                         layer->blendfunc[0] = GL_DST_COLOR;
1795                                                                         layer->blendfunc[1] = GL_ZERO;
1796                                                                 }
1797                                                                 else if (!strcasecmp(parameter[1], "blend"))
1798                                                                 {
1799                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1800                                                                         layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
1801                                                                 }
1802                                                         }
1803                                                         else if (numparameters == 3)
1804                                                         {
1805                                                                 int k;
1806                                                                 for (k = 0;k < 2;k++)
1807                                                                 {
1808                                                                         if (!strcasecmp(parameter[k+1], "GL_ONE"))
1809                                                                                 layer->blendfunc[k] = GL_ONE;
1810                                                                         else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
1811                                                                                 layer->blendfunc[k] = GL_ZERO;
1812                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
1813                                                                                 layer->blendfunc[k] = GL_SRC_COLOR;
1814                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
1815                                                                                 layer->blendfunc[k] = GL_SRC_ALPHA;
1816                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
1817                                                                                 layer->blendfunc[k] = GL_DST_COLOR;
1818                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
1819                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1820                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
1821                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
1822                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
1823                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
1824                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
1825                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
1826                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
1827                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1828                                                                         else
1829                                                                                 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
1830                                                                 }
1831                                                         }
1832                                                 }
1833                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
1834                                                         layer->alphatest = true;
1835                                                 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
1836                                                 {
1837                                                         if (!strcasecmp(parameter[0], "clampmap"))
1838                                                                 layer->clampmap = true;
1839                                                         layer->numframes = 1;
1840                                                         layer->framerate = 1;
1841                                                         layer->texturename = (char**)Mem_ExpandableArray_AllocRecord (
1842                                                                 &q3shader_data->char_ptrs);
1843                                                         layer->texturename[0] = Mem_strdup (q3shaders_mem, parameter[1]);
1844                                                         if (!strcasecmp(parameter[1], "$lightmap"))
1845                                                                 shader.lighting = true;
1846                                                 }
1847                                                 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
1848                                                 {
1849                                                         int i;
1850                                                         layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
1851                                                         layer->framerate = atof(parameter[1]);
1852                                                         layer->texturename = (char **) Mem_Alloc (q3shaders_mem, sizeof (char*) * layer->numframes);
1853                                                         for (i = 0;i < layer->numframes;i++)
1854                                                                 layer->texturename[i] = Mem_strdup (q3shaders_mem, parameter[i + 2]);
1855                                                 }
1856                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen"))
1857                                                 {
1858                                                         int i;
1859                                                         for (i = 0;i < numparameters - 2 && i < Q3RGBGEN_MAXPARMS;i++)
1860                                                                 layer->rgbgen.parms[i] = atof(parameter[i+2]);
1861                                                              if (!strcasecmp(parameter[1], "identity"))         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1862                                                         else if (!strcasecmp(parameter[1], "const"))            layer->rgbgen.rgbgen = Q3RGBGEN_CONST;
1863                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->rgbgen.rgbgen = Q3RGBGEN_ENTITY;
1864                                                         else if (!strcasecmp(parameter[1], "exactvertex"))      layer->rgbgen.rgbgen = Q3RGBGEN_EXACTVERTEX;
1865                                                         else if (!strcasecmp(parameter[1], "identitylighting")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITYLIGHTING;
1866                                                         else if (!strcasecmp(parameter[1], "lightingdiffuse"))  layer->rgbgen.rgbgen = Q3RGBGEN_LIGHTINGDIFFUSE;
1867                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSENTITY;
1868                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSVERTEX;
1869                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->rgbgen.rgbgen = Q3RGBGEN_VERTEX;
1870                                                         else if (!strcasecmp(parameter[1], "wave"))
1871                                                         {
1872                                                                 layer->rgbgen.rgbgen = Q3RGBGEN_WAVE;
1873                                                                 layer->rgbgen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1874                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1875                                                                         layer->rgbgen.waveparms[i] = atof(parameter[i+3]);
1876                                                         }
1877                                                         else Con_DPrintf("%s parsing warning: unknown rgbgen %s\n", search->filenames[fileindex], parameter[1]);
1878                                                 }
1879                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen"))
1880                                                 {
1881                                                         int i;
1882                                                         for (i = 0;i < numparameters - 2 && i < Q3ALPHAGEN_MAXPARMS;i++)
1883                                                                 layer->alphagen.parms[i] = atof(parameter[i+2]);
1884                                                              if (!strcasecmp(parameter[1], "identity"))         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1885                                                         else if (!strcasecmp(parameter[1], "const"))            layer->alphagen.alphagen = Q3ALPHAGEN_CONST;
1886                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->alphagen.alphagen = Q3ALPHAGEN_ENTITY;
1887                                                         else if (!strcasecmp(parameter[1], "lightingspecular")) layer->alphagen.alphagen = Q3ALPHAGEN_LIGHTINGSPECULAR;
1888                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSENTITY;
1889                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSVERTEX;
1890                                                         else if (!strcasecmp(parameter[1], "portal"))           layer->alphagen.alphagen = Q3ALPHAGEN_PORTAL;
1891                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->alphagen.alphagen = Q3ALPHAGEN_VERTEX;
1892                                                         else if (!strcasecmp(parameter[1], "wave"))
1893                                                         {
1894                                                                 layer->alphagen.alphagen = Q3ALPHAGEN_WAVE;
1895                                                                 layer->alphagen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1896                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1897                                                                         layer->alphagen.waveparms[i] = atof(parameter[i+3]);
1898                                                         }
1899                                                         else Con_DPrintf("%s parsing warning: unknown alphagen %s\n", search->filenames[fileindex], parameter[1]);
1900                                                 }
1901                                                 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "texgen") || !strcasecmp(parameter[0], "tcgen")))
1902                                                 {
1903                                                         int i;
1904                                                         // observed values: tcgen environment
1905                                                         // no other values have been observed in real shaders
1906                                                         for (i = 0;i < numparameters - 2 && i < Q3TCGEN_MAXPARMS;i++)
1907                                                                 layer->tcgen.parms[i] = atof(parameter[i+2]);
1908                                                              if (!strcasecmp(parameter[1], "base"))        layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1909                                                         else if (!strcasecmp(parameter[1], "texture"))     layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1910                                                         else if (!strcasecmp(parameter[1], "environment")) layer->tcgen.tcgen = Q3TCGEN_ENVIRONMENT;
1911                                                         else if (!strcasecmp(parameter[1], "lightmap"))    layer->tcgen.tcgen = Q3TCGEN_LIGHTMAP;
1912                                                         else if (!strcasecmp(parameter[1], "vector"))      layer->tcgen.tcgen = Q3TCGEN_VECTOR;
1913                                                         else Con_DPrintf("%s parsing warning: unknown tcgen mode %s\n", search->filenames[fileindex], parameter[1]);
1914                                                 }
1915                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "tcmod"))
1916                                                 {
1917                                                         int i, tcmodindex;
1918                                                         // observed values:
1919                                                         // tcmod rotate #
1920                                                         // tcmod scale # #
1921                                                         // tcmod scroll # #
1922                                                         // tcmod stretch sin # # # #
1923                                                         // tcmod stretch triangle # # # #
1924                                                         // tcmod transform # # # # # #
1925                                                         // tcmod turb # # # #
1926                                                         // tcmod turb sin # # # #  (this is bogus)
1927                                                         // no other values have been observed in real shaders
1928                                                         for (tcmodindex = 0;tcmodindex < Q3MAXTCMODS;tcmodindex++)
1929                                                                 if (!layer->tcmods[tcmodindex].tcmod)
1930                                                                         break;
1931                                                         if (tcmodindex < Q3MAXTCMODS)
1932                                                         {
1933                                                                 for (i = 0;i < numparameters - 2 && i < Q3TCMOD_MAXPARMS;i++)
1934                                                                         layer->tcmods[tcmodindex].parms[i] = atof(parameter[i+2]);
1935                                                                          if (!strcasecmp(parameter[1], "entitytranslate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ENTITYTRANSLATE;
1936                                                                 else if (!strcasecmp(parameter[1], "rotate"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ROTATE;
1937                                                                 else if (!strcasecmp(parameter[1], "scale"))           layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCALE;
1938                                                                 else if (!strcasecmp(parameter[1], "scroll"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCROLL;
1939                                                                 else if (!strcasecmp(parameter[1], "page"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_PAGE;
1940                                                                 else if (!strcasecmp(parameter[1], "stretch"))
1941                                                                 {
1942                                                                         layer->tcmods[tcmodindex].tcmod = Q3TCMOD_STRETCH;
1943                                                                         layer->tcmods[tcmodindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1944                                                                         for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1945                                                                                 layer->tcmods[tcmodindex].waveparms[i] = atof(parameter[i+3]);
1946                                                                 }
1947                                                                 else if (!strcasecmp(parameter[1], "transform"))       layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TRANSFORM;
1948                                                                 else if (!strcasecmp(parameter[1], "turb"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TURBULENT;
1949                                                                 else Con_DPrintf("%s parsing warning: unknown tcmod mode %s\n", search->filenames[fileindex], parameter[1]);
1950                                                         }
1951                                                         else
1952                                                                 Con_DPrintf("%s parsing warning: too many tcmods on one layer\n", search->filenames[fileindex]);
1953                                                 }
1954                                                 // break out a level if it was a closing brace (not using the character here to not confuse vim)
1955                                                 if (!strcasecmp(com_token, "}"))
1956                                                         break;
1957                                         }
1958                                         if (layer->rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE || layer->rgbgen.rgbgen == Q3RGBGEN_VERTEX)
1959                                                 shader.lighting = true;
1960                                         if (layer->alphagen.alphagen == Q3ALPHAGEN_VERTEX)
1961                                         {
1962                                                 if (layer == shader.layers + 0)
1963                                                 {
1964                                                         // vertex controlled transparency
1965                                                         shader.vertexalpha = true;
1966                                                 }
1967                                                 else
1968                                                 {
1969                                                         // multilayer terrain shader or similar
1970                                                         shader.textureblendalpha = true;
1971                                                 }
1972                                         }
1973                                         layer->texflags = 0;
1974                                         if (layer->alphatest)
1975                                                 layer->texflags |= TEXF_ALPHA;
1976                                         switch(layer->blendfunc[0])
1977                                         {
1978                                                 case GL_SRC_ALPHA:
1979                                                 case GL_ONE_MINUS_SRC_ALPHA:
1980                                                         layer->texflags |= TEXF_ALPHA;
1981                                                         break;
1982                                         }
1983                                         switch(layer->blendfunc[1])
1984                                         {
1985                                                 case GL_SRC_ALPHA:
1986                                                 case GL_ONE_MINUS_SRC_ALPHA:
1987                                                         layer->texflags |= TEXF_ALPHA;
1988                                                         break;
1989                                         }
1990                                         if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
1991                                                 layer->texflags |= TEXF_MIPMAP;
1992                                         if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
1993                                                 layer->texflags |= TEXF_PICMIP | TEXF_COMPRESS;
1994                                         if (layer->clampmap)
1995                                                 layer->texflags |= TEXF_CLAMP;
1996                                         continue;
1997                                 }
1998                                 numparameters = 0;
1999                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
2000                                 {
2001                                         if (j < TEXTURE_MAXFRAMES + 4)
2002                                         {
2003                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
2004                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
2005                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
2006                                                 else
2007                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
2008                                                 numparameters = j + 1;
2009                                         }
2010                                         if (!COM_ParseToken_QuakeC(&text, true))
2011                                                 break;
2012                                 }
2013                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
2014                                 //      parameter[j][0] = 0;
2015                                 if (fileindex == 0 && !strcasecmp(com_token, "}"))
2016                                         break;
2017                                 if (developer_insane.integer)
2018                                 {
2019                                         Con_DPrintf("%s: ", shader.name);
2020                                         for (j = 0;j < numparameters;j++)
2021                                                 Con_DPrintf(" %s", parameter[j]);
2022                                         Con_DPrint("\n");
2023                                 }
2024                                 if (numparameters < 1)
2025                                         continue;
2026                                 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
2027                                 {
2028                                         if (!strcasecmp(parameter[1], "alphashadow"))
2029                                                 shader.surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
2030                                         else if (!strcasecmp(parameter[1], "areaportal"))
2031                                                 shader.surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
2032                                         else if (!strcasecmp(parameter[1], "botclip"))
2033                                                 shader.surfaceparms |= Q3SURFACEPARM_BOTCLIP;
2034                                         else if (!strcasecmp(parameter[1], "clusterportal"))
2035                                                 shader.surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
2036                                         else if (!strcasecmp(parameter[1], "detail"))
2037                                                 shader.surfaceparms |= Q3SURFACEPARM_DETAIL;
2038                                         else if (!strcasecmp(parameter[1], "donotenter"))
2039                                                 shader.surfaceparms |= Q3SURFACEPARM_DONOTENTER;
2040                                         else if (!strcasecmp(parameter[1], "dust"))
2041                                                 shader.surfaceparms |= Q3SURFACEPARM_DUST;
2042                                         else if (!strcasecmp(parameter[1], "hint"))
2043                                                 shader.surfaceparms |= Q3SURFACEPARM_HINT;
2044                                         else if (!strcasecmp(parameter[1], "fog"))
2045                                                 shader.surfaceparms |= Q3SURFACEPARM_FOG;
2046                                         else if (!strcasecmp(parameter[1], "lava"))
2047                                                 shader.surfaceparms |= Q3SURFACEPARM_LAVA;
2048                                         else if (!strcasecmp(parameter[1], "lightfilter"))
2049                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
2050                                         else if (!strcasecmp(parameter[1], "lightgrid"))
2051                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
2052                                         else if (!strcasecmp(parameter[1], "metalsteps"))
2053                                                 shader.surfaceparms |= Q3SURFACEPARM_METALSTEPS;
2054                                         else if (!strcasecmp(parameter[1], "nodamage"))
2055                                                 shader.surfaceparms |= Q3SURFACEPARM_NODAMAGE;
2056                                         else if (!strcasecmp(parameter[1], "nodlight"))
2057                                                 shader.surfaceparms |= Q3SURFACEPARM_NODLIGHT;
2058                                         else if (!strcasecmp(parameter[1], "nodraw"))
2059                                                 shader.surfaceparms |= Q3SURFACEPARM_NODRAW;
2060                                         else if (!strcasecmp(parameter[1], "nodrop"))
2061                                                 shader.surfaceparms |= Q3SURFACEPARM_NODROP;
2062                                         else if (!strcasecmp(parameter[1], "noimpact"))
2063                                                 shader.surfaceparms |= Q3SURFACEPARM_NOIMPACT;
2064                                         else if (!strcasecmp(parameter[1], "nolightmap"))
2065                                                 shader.surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
2066                                         else if (!strcasecmp(parameter[1], "nomarks"))
2067                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMARKS;
2068                                         else if (!strcasecmp(parameter[1], "nomipmaps"))
2069                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2070                                         else if (!strcasecmp(parameter[1], "nonsolid"))
2071                                                 shader.surfaceparms |= Q3SURFACEPARM_NONSOLID;
2072                                         else if (!strcasecmp(parameter[1], "origin"))
2073                                                 shader.surfaceparms |= Q3SURFACEPARM_ORIGIN;
2074                                         else if (!strcasecmp(parameter[1], "playerclip"))
2075                                                 shader.surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
2076                                         else if (!strcasecmp(parameter[1], "sky"))
2077                                                 shader.surfaceparms |= Q3SURFACEPARM_SKY;
2078                                         else if (!strcasecmp(parameter[1], "slick"))
2079                                                 shader.surfaceparms |= Q3SURFACEPARM_SLICK;
2080                                         else if (!strcasecmp(parameter[1], "slime"))
2081                                                 shader.surfaceparms |= Q3SURFACEPARM_SLIME;
2082                                         else if (!strcasecmp(parameter[1], "structural"))
2083                                                 shader.surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
2084                                         else if (!strcasecmp(parameter[1], "trans"))
2085                                                 shader.surfaceparms |= Q3SURFACEPARM_TRANS;
2086                                         else if (!strcasecmp(parameter[1], "water"))
2087                                                 shader.surfaceparms |= Q3SURFACEPARM_WATER;
2088                                         else if (!strcasecmp(parameter[1], "pointlight"))
2089                                                 shader.surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
2090                                         else if (!strcasecmp(parameter[1], "antiportal"))
2091                                                 shader.surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
2092                                         else
2093                                         {
2094                                                 // try custom surfaceparms
2095                                                 for (j = 0; j < numcustsurfaceparms; j++)
2096                                                 {
2097                                                         if (!strcasecmp(custsurfaceparmnames[j], parameter[1]))
2098                                                         {
2099                                                                 shader.surfaceparms |= custsurfaceparms[j];
2100                                                                 break;
2101                                                         }
2102                                                 }
2103                                                 // failed all
2104                                                 if (j == numcustsurfaceparms)
2105                                                         Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
2106                                         }
2107                                 }
2108                                 else if (!strcasecmp(parameter[0], "dpshadow"))
2109                                         shader.dpshadow = true;
2110                                 else if (!strcasecmp(parameter[0], "dpnoshadow"))
2111                                         shader.dpnoshadow = true;
2112                                 else if (!strcasecmp(parameter[0], "dpnortlight"))
2113                                         shader.dpnortlight = true;
2114                                 else if (!strcasecmp(parameter[0], "dpreflectcube"))
2115                                         strlcpy(shader.dpreflectcube, parameter[1], sizeof(shader.dpreflectcube));
2116                                 else if (!strcasecmp(parameter[0], "dpmeshcollisions"))
2117                                         shader.dpmeshcollisions = true;
2118                                 // this sets dpshaderkill to true if dpshaderkillifcvarzero was used, and to false if dpnoshaderkillifcvarzero was used
2119                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvarzero")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvarzero")) && numparameters >= 2)
2120                                 {
2121                                         if (Cvar_VariableValue(parameter[1]) == 0.0f)
2122                                                 shader.dpshaderkill = dpshaderkill;
2123                                 }
2124                                 // this sets dpshaderkill to true if dpshaderkillifcvar was used, and to false if dpnoshaderkillifcvar was used
2125                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvar")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvar")) && numparameters >= 2)
2126                                 {
2127                                         const char *op = NULL;
2128                                         if (numparameters >= 3)
2129                                                 op = parameter[2];
2130                                         if(!op)
2131                                         {
2132                                                 if (Cvar_VariableValue(parameter[1]) != 0.0f)
2133                                                         shader.dpshaderkill = dpshaderkill;
2134                                         }
2135                                         else if (numparameters >= 4 && !strcmp(op, "=="))
2136                                         {
2137                                                 if (Cvar_VariableValue(parameter[1]) == atof(parameter[3]))
2138                                                         shader.dpshaderkill = dpshaderkill;
2139                                         }
2140                                         else if (numparameters >= 4 && !strcmp(op, "!="))
2141                                         {
2142                                                 if (Cvar_VariableValue(parameter[1]) != atof(parameter[3]))
2143                                                         shader.dpshaderkill = dpshaderkill;
2144                                         }
2145                                         else if (numparameters >= 4 && !strcmp(op, ">"))
2146                                         {
2147                                                 if (Cvar_VariableValue(parameter[1]) > atof(parameter[3]))
2148                                                         shader.dpshaderkill = dpshaderkill;
2149                                         }
2150                                         else if (numparameters >= 4 && !strcmp(op, "<"))
2151                                         {
2152                                                 if (Cvar_VariableValue(parameter[1]) < atof(parameter[3]))
2153                                                         shader.dpshaderkill = dpshaderkill;
2154                                         }
2155                                         else if (numparameters >= 4 && !strcmp(op, ">="))
2156                                         {
2157                                                 if (Cvar_VariableValue(parameter[1]) >= atof(parameter[3]))
2158                                                         shader.dpshaderkill = dpshaderkill;
2159                                         }
2160                                         else if (numparameters >= 4 && !strcmp(op, "<="))
2161                                         {
2162                                                 if (Cvar_VariableValue(parameter[1]) <= atof(parameter[3]))
2163                                                         shader.dpshaderkill = dpshaderkill;
2164                                         }
2165                                         else
2166                                         {
2167                                                 Con_DPrintf("%s parsing warning: unknown dpshaderkillifcvar op \"%s\", or not enough arguments\n", search->filenames[fileindex], op);
2168                                         }
2169                                 }
2170                                 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
2171                                 {
2172                                         // some q3 skies don't have the sky parm set
2173                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2174                                         strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2175                                 }
2176                                 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
2177                                 {
2178                                         // some q3 skies don't have the sky parm set
2179                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2180                                         if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
2181                                                 strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2182                                 }
2183                                 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
2184                                 {
2185                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
2186                                                 shader.textureflags |= Q3TEXTUREFLAG_TWOSIDED;
2187                                 }
2188                                 else if (!strcasecmp(parameter[0], "nomipmaps"))
2189                                         shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2190                                 else if (!strcasecmp(parameter[0], "nopicmip"))
2191                                         shader.textureflags |= Q3TEXTUREFLAG_NOPICMIP;
2192                                 else if (!strcasecmp(parameter[0], "polygonoffset"))
2193                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2194                                 else if (!strcasecmp(parameter[0], "dppolygonoffset"))
2195                                 {
2196                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2197                                         if(numparameters >= 2)
2198                                         {
2199                                                 shader.biaspolygonfactor = atof(parameter[1]);
2200                                                 if(numparameters >= 3)
2201                                                         shader.biaspolygonoffset = atof(parameter[2]);
2202                                                 else
2203                                                         shader.biaspolygonoffset = 0;
2204                                         }
2205                                 }
2206                                 else if (!strcasecmp(parameter[0], "dprefract") && numparameters >= 5)
2207                                 {
2208                                         shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
2209                                         shader.refractfactor = atof(parameter[1]);
2210                                         Vector4Set(shader.refractcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), 1);
2211                                 }
2212                                 else if (!strcasecmp(parameter[0], "dpreflect") && numparameters >= 6)
2213                                 {
2214                                         shader.textureflags |= Q3TEXTUREFLAG_REFLECTION;
2215                                         shader.reflectfactor = atof(parameter[1]);
2216                                         Vector4Set(shader.reflectcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), atof(parameter[5]));
2217                                 }
2218                                 else if (!strcasecmp(parameter[0], "dpcamera"))
2219                                 {
2220                                         shader.textureflags |= Q3TEXTUREFLAG_CAMERA;
2221                                 }
2222                                 else if (!strcasecmp(parameter[0], "dpwater") && numparameters >= 12)
2223                                 {
2224                                         shader.textureflags |= Q3TEXTUREFLAG_WATERSHADER;
2225                                         shader.reflectmin = atof(parameter[1]);
2226                                         shader.reflectmax = atof(parameter[2]);
2227                                         shader.refractfactor = atof(parameter[3]);
2228                                         shader.reflectfactor = atof(parameter[4]);
2229                                         Vector4Set(shader.refractcolor4f, atof(parameter[5]), atof(parameter[6]), atof(parameter[7]), 1);
2230                                         Vector4Set(shader.reflectcolor4f, atof(parameter[8]), atof(parameter[9]), atof(parameter[10]), 1);
2231                                         shader.r_water_wateralpha = atof(parameter[11]);
2232                                 }
2233                                 else if (!strcasecmp(parameter[0], "dpwaterscroll") && numparameters >= 3)
2234                                 {
2235                                         shader.r_water_waterscroll[0] = 1/atof(parameter[1]);
2236                                         shader.r_water_waterscroll[1] = 1/atof(parameter[2]);
2237                                 }
2238                                 else if (!strcasecmp(parameter[0], "dpglossintensitymod") && numparameters >= 2)
2239                                 {
2240                                         shader.specularscalemod = atof(parameter[1]);
2241                                 }
2242                                 else if (!strcasecmp(parameter[0], "dpglossexponentmod") && numparameters >= 2)
2243                                 {
2244                                         shader.specularpowermod = atof(parameter[1]);
2245                                 }
2246                                 else if (!strcasecmp(parameter[0], "dprtlightambient") && numparameters >= 2)
2247                                 {
2248                                         shader.rtlightambient = atof(parameter[1]);
2249                                 }
2250                                 else if (!strcasecmp(parameter[0], "dpoffsetmapping") && numparameters >= 2)
2251                                 {
2252                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "off"))
2253                                                 shader.offsetmapping = OFFSETMAPPING_OFF;
2254                                         else if (!strcasecmp(parameter[1], "default") || !strcasecmp(parameter[1], "normal"))
2255                                                 shader.offsetmapping = OFFSETMAPPING_DEFAULT;
2256                                         else if (!strcasecmp(parameter[1], "linear"))
2257                                                 shader.offsetmapping = OFFSETMAPPING_LINEAR;
2258                                         else if (!strcasecmp(parameter[1], "relief"))
2259                                                 shader.offsetmapping = OFFSETMAPPING_RELIEF;
2260                                         if (numparameters >= 3)
2261                                                 shader.offsetscale = atof(parameter[2]);
2262                                         if (numparameters >= 4)
2263                                                 shader.offsetbias = atof(parameter[3]);
2264                                 }
2265                                 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
2266                                 {
2267                                         int i, deformindex;
2268                                         for (deformindex = 0;deformindex < Q3MAXDEFORMS;deformindex++)
2269                                                 if (!shader.deforms[deformindex].deform)
2270                                                         break;
2271                                         if (deformindex < Q3MAXDEFORMS)
2272                                         {
2273                                                 for (i = 0;i < numparameters - 2 && i < Q3DEFORM_MAXPARMS;i++)
2274                                                         shader.deforms[deformindex].parms[i] = atof(parameter[i+2]);
2275                                                      if (!strcasecmp(parameter[1], "projectionshadow")) shader.deforms[deformindex].deform = Q3DEFORM_PROJECTIONSHADOW;
2276                                                 else if (!strcasecmp(parameter[1], "autosprite"      )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE;
2277                                                 else if (!strcasecmp(parameter[1], "autosprite2"     )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE2;
2278                                                 else if (!strcasecmp(parameter[1], "text0"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT0;
2279                                                 else if (!strcasecmp(parameter[1], "text1"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT1;
2280                                                 else if (!strcasecmp(parameter[1], "text2"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT2;
2281                                                 else if (!strcasecmp(parameter[1], "text3"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT3;
2282                                                 else if (!strcasecmp(parameter[1], "text4"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT4;
2283                                                 else if (!strcasecmp(parameter[1], "text5"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT5;
2284                                                 else if (!strcasecmp(parameter[1], "text6"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT6;
2285                                                 else if (!strcasecmp(parameter[1], "text7"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT7;
2286                                                 else if (!strcasecmp(parameter[1], "bulge"           )) shader.deforms[deformindex].deform = Q3DEFORM_BULGE;
2287                                                 else if (!strcasecmp(parameter[1], "normal"          )) shader.deforms[deformindex].deform = Q3DEFORM_NORMAL;
2288                                                 else if (!strcasecmp(parameter[1], "wave"            ))
2289                                                 {
2290                                                         shader.deforms[deformindex].deform = Q3DEFORM_WAVE;
2291                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[3]);
2292                                                         for (i = 0;i < numparameters - 4 && i < Q3WAVEPARMS;i++)
2293                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+4]);
2294                                                 }
2295                                                 else if (!strcasecmp(parameter[1], "move"            ))
2296                                                 {
2297                                                         shader.deforms[deformindex].deform = Q3DEFORM_MOVE;
2298                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[5]);
2299                                                         for (i = 0;i < numparameters - 6 && i < Q3WAVEPARMS;i++)
2300                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+6]);
2301                                                 }
2302                                         }
2303                                 }
2304                         }
2305                         // hide this shader if a cvar said it should be killed
2306                         if (shader.dpshaderkill)
2307                                 shader.numlayers = 0;
2308                         // pick the primary layer to render with
2309                         if (shader.numlayers)
2310                         {
2311                                 shader.backgroundlayer = -1;
2312                                 shader.primarylayer = 0;
2313                                 // if lightmap comes first this is definitely an ordinary texture
2314                                 // if the first two layers have the correct blendfuncs and use vertex alpha, it is a blended terrain shader
2315                                 if ((shader.layers[shader.primarylayer].texturename != NULL)
2316                                   && !strcasecmp(shader.layers[shader.primarylayer].texturename[0], "$lightmap"))
2317                                 {
2318                                         shader.backgroundlayer = -1;
2319                                         shader.primarylayer = 1;
2320                                 }
2321                                 else if (shader.numlayers >= 2
2322                                 &&   shader.layers[1].alphagen.alphagen == Q3ALPHAGEN_VERTEX
2323                                 &&  (shader.layers[0].blendfunc[0] == GL_ONE       && shader.layers[0].blendfunc[1] == GL_ZERO                && !shader.layers[0].alphatest)
2324                                 && ((shader.layers[1].blendfunc[0] == GL_SRC_ALPHA && shader.layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2325                                 ||  (shader.layers[1].blendfunc[0] == GL_ONE       && shader.layers[1].blendfunc[1] == GL_ZERO                &&  shader.layers[1].alphatest)))
2326                                 {
2327                                         // terrain blending or other effects
2328                                         shader.backgroundlayer = 0;
2329                                         shader.primarylayer = 1;
2330                                 }
2331                         }
2332                         // fix up multiple reflection types
2333                         if(shader.textureflags & Q3TEXTUREFLAG_WATERSHADER)
2334                                 shader.textureflags &= ~(Q3TEXTUREFLAG_REFRACTION | Q3TEXTUREFLAG_REFLECTION | Q3TEXTUREFLAG_CAMERA);
2335
2336                         Q3Shader_AddToHash (&shader);
2337                 }
2338                 Mem_Free(f);
2339         }
2340         FS_FreeSearch(search);
2341         // free custinfoparm values
2342         for (j = 0; j < numcustsurfaceparms; j++)
2343                 Mem_Free(custsurfaceparmnames[j]);
2344 }
2345
2346 q3shaderinfo_t *Mod_LookupQ3Shader(const char *name)
2347 {
2348         unsigned short hash;
2349         q3shader_hash_entry_t* entry;
2350         if (!q3shaders_mem)
2351                 Mod_LoadQ3Shaders();
2352         hash = CRC_Block_CaseInsensitive ((const unsigned char *)name, strlen (name));
2353         entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
2354         while (entry != NULL)
2355         {
2356                 if (strcasecmp (entry->shader.name, name) == 0)
2357                         return &entry->shader;
2358                 entry = entry->chain;
2359         }
2360         return NULL;
2361 }
2362
2363 qboolean Mod_LoadTextureFromQ3Shader(texture_t *texture, const char *name, qboolean warnmissing, qboolean fallback, int defaulttexflags)
2364 {
2365         int j;
2366         int texflagsmask, texflagsor;
2367         qboolean success = true;
2368         q3shaderinfo_t *shader;
2369         if (!name)
2370                 name = "";
2371         strlcpy(texture->name, name, sizeof(texture->name));
2372         shader = name[0] ? Mod_LookupQ3Shader(name) : NULL;
2373
2374         texflagsmask = ~0;
2375         if(!(defaulttexflags & TEXF_PICMIP))
2376                 texflagsmask &= ~TEXF_PICMIP;
2377         if(!(defaulttexflags & TEXF_COMPRESS))
2378                 texflagsmask &= ~TEXF_COMPRESS;
2379         texflagsor = 0;
2380         if(defaulttexflags & TEXF_ISWORLD)
2381                 texflagsor |= TEXF_ISWORLD;
2382         if(defaulttexflags & TEXF_ISSPRITE)
2383                 texflagsor |= TEXF_ISSPRITE;
2384         // unless later loaded from the shader
2385         texture->offsetmapping = (mod_noshader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
2386         texture->offsetscale = 1;
2387         texture->offsetbias = 0;
2388         texture->specularscalemod = 1;
2389         texture->specularpowermod = 1;
2390         texture->rtlightambient = 0;
2391         // WHEN ADDING DEFAULTS HERE, REMEMBER TO SYNC TO SHADER LOADING ABOVE
2392         // HERE, AND Q1BSP LOADING
2393         // JUST GREP FOR "specularscalemod = 1".
2394
2395         if (shader)
2396         {
2397                 if (developer_loading.integer)
2398                         Con_Printf("%s: loaded shader for %s\n", loadmodel->name, name);
2399                 texture->surfaceparms = shader->surfaceparms;
2400
2401                 // allow disabling of picmip or compression by defaulttexflags
2402                 texture->textureflags = (shader->textureflags & texflagsmask) | texflagsor;
2403
2404                 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
2405                 {
2406                         texture->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2407                         if (shader->skyboxname[0])
2408                         {
2409                                 // quake3 seems to append a _ to the skybox name, so this must do so as well
2410                                 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
2411                         }
2412                 }
2413                 else if ((texture->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
2414                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2415                 else
2416                         texture->basematerialflags = MATERIALFLAG_WALL;
2417
2418                 if (shader->layers[0].alphatest)
2419                         texture->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
2420                 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
2421                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
2422                 if (shader->textureflags & Q3TEXTUREFLAG_POLYGONOFFSET)
2423                 {
2424                         texture->biaspolygonoffset += shader->biaspolygonoffset;
2425                         texture->biaspolygonfactor += shader->biaspolygonfactor;
2426                 }
2427                 if (shader->textureflags & Q3TEXTUREFLAG_REFRACTION)
2428                         texture->basematerialflags |= MATERIALFLAG_REFRACTION;
2429                 if (shader->textureflags & Q3TEXTUREFLAG_REFLECTION)
2430                         texture->basematerialflags |= MATERIALFLAG_REFLECTION;
2431                 if (shader->textureflags & Q3TEXTUREFLAG_WATERSHADER)
2432                         texture->basematerialflags |= MATERIALFLAG_WATERSHADER;
2433                 if (shader->textureflags & Q3TEXTUREFLAG_CAMERA)
2434                         texture->basematerialflags |= MATERIALFLAG_CAMERA;
2435                 texture->customblendfunc[0] = GL_ONE;
2436                 texture->customblendfunc[1] = GL_ZERO;
2437                 if (shader->numlayers > 0)
2438                 {
2439                         texture->customblendfunc[0] = shader->layers[0].blendfunc[0];
2440                         texture->customblendfunc[1] = shader->layers[0].blendfunc[1];
2441 /*
2442 Q3 shader blendfuncs actually used in the game (* = supported by DP)
2443 * additive               GL_ONE GL_ONE
2444 additive weird         GL_ONE GL_SRC_ALPHA
2445 additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
2446 * alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
2447 alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
2448 brighten               GL_DST_COLOR GL_ONE
2449 brighten               GL_ONE GL_SRC_COLOR
2450 brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
2451 brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
2452 * modulate               GL_DST_COLOR GL_ZERO
2453 * modulate               GL_ZERO GL_SRC_COLOR
2454 modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
2455 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
2456 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
2457 * modulate x2            GL_DST_COLOR GL_SRC_COLOR
2458 * no blend               GL_ONE GL_ZERO
2459 nothing                GL_ZERO GL_ONE
2460 */
2461                         // if not opaque, figure out what blendfunc to use
2462                         if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
2463                         {
2464                                 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
2465                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2466                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
2467                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2468                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2469                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2470                                 else
2471                                         texture->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2472                         }
2473                 }
2474                 if (!shader->lighting)
2475                         texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
2476                 if (shader->primarylayer >= 0)
2477                 {
2478                         q3shaderinfo_layer_t* primarylayer = shader->layers + shader->primarylayer;
2479                         // copy over many primarylayer parameters
2480                         texture->rgbgen = primarylayer->rgbgen;
2481                         texture->alphagen = primarylayer->alphagen;
2482                         texture->tcgen = primarylayer->tcgen;
2483                         memcpy(texture->tcmods, primarylayer->tcmods, sizeof(texture->tcmods));
2484                         // load the textures
2485                         texture->numskinframes = primarylayer->numframes;
2486                         texture->skinframerate = primarylayer->framerate;
2487                         for (j = 0;j < primarylayer->numframes;j++)
2488                         {
2489                                 if(cls.state == ca_dedicated)
2490                                 {
2491                                         texture->skinframes[j] = NULL;
2492                                 }
2493                                 else if (!(texture->skinframes[j] = R_SkinFrame_LoadExternal(primarylayer->texturename[j], (primarylayer->texflags & texflagsmask) | texflagsor, false)))
2494                                 {
2495                                         Con_Printf("^1%s:^7 could not load texture ^3\"%s\"^7 (frame %i) for shader ^2\"%s\"\n", loadmodel->name, primarylayer->texturename[j], j, texture->name);
2496                                         texture->skinframes[j] = R_SkinFrame_LoadMissing();
2497                                 }
2498                         }
2499                 }
2500                 if (shader->backgroundlayer >= 0)
2501                 {
2502                         q3shaderinfo_layer_t* backgroundlayer = shader->layers + shader->backgroundlayer;
2503                         // copy over one secondarylayer parameter
2504                         memcpy(texture->backgroundtcmods, backgroundlayer->tcmods, sizeof(texture->backgroundtcmods));
2505                         // load the textures
2506                         texture->backgroundnumskinframes = backgroundlayer->numframes;
2507                         texture->backgroundskinframerate = backgroundlayer->framerate;
2508                         for (j = 0;j < backgroundlayer->numframes;j++)
2509                         {
2510                                 if(cls.state == ca_dedicated)
2511                                 {
2512                                         texture->skinframes[j] = NULL;
2513                                 }
2514                                 else if (!(texture->backgroundskinframes[j] = R_SkinFrame_LoadExternal(backgroundlayer->texturename[j], (backgroundlayer->texflags & texflagsmask) | texflagsor, false)))
2515                                 {
2516                                         Con_Printf("^1%s:^7 could not load texture ^3\"%s\"^7 (background frame %i) for shader ^2\"%s\"\n", loadmodel->name, backgroundlayer->texturename[j], j, texture->name);
2517                                         texture->backgroundskinframes[j] = R_SkinFrame_LoadMissing();
2518                                 }
2519                         }
2520                 }
2521                 if (shader->dpshadow)
2522                         texture->basematerialflags &= ~MATERIALFLAG_NOSHADOW;
2523                 if (shader->dpnoshadow)
2524                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW;
2525                 if (shader->dpnortlight)
2526                         texture->basematerialflags |= MATERIALFLAG_NORTLIGHT;
2527                 memcpy(texture->deforms, shader->deforms, sizeof(texture->deforms));
2528                 texture->reflectmin = shader->reflectmin;
2529                 texture->reflectmax = shader->reflectmax;
2530                 texture->refractfactor = shader->refractfactor;
2531                 Vector4Copy(shader->refractcolor4f, texture->refractcolor4f);
2532                 texture->reflectfactor = shader->reflectfactor;
2533                 Vector4Copy(shader->reflectcolor4f, texture->reflectcolor4f);
2534                 texture->r_water_wateralpha = shader->r_water_wateralpha;
2535                 Vector2Copy(shader->r_water_waterscroll, texture->r_water_waterscroll);
2536                 texture->offsetmapping = shader->offsetmapping;
2537                 texture->offsetscale = shader->offsetscale;
2538                 texture->offsetbias = shader->offsetbias;
2539                 texture->specularscalemod = shader->specularscalemod;
2540                 texture->specularpowermod = shader->specularpowermod;
2541                 texture->rtlightambient = shader->rtlightambient;
2542                 if (shader->dpreflectcube[0])
2543                         texture->reflectcubetexture = R_GetCubemap(shader->dpreflectcube);
2544
2545                 // set up default supercontents (on q3bsp this is overridden by the q3bsp loader)
2546                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2547                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents  = SUPERCONTENTS_LAVA         ;
2548                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents  = SUPERCONTENTS_SLIME        ;
2549                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents  = SUPERCONTENTS_WATER        ;
2550                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents  = 0                          ;
2551                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents  = SUPERCONTENTS_PLAYERCLIP   ;
2552                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents  = SUPERCONTENTS_MONSTERCLIP  ;
2553                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents  = SUPERCONTENTS_SKY          ;
2554
2555         //      if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->supercontents |= SUPERCONTENTS_ALPHASHADOW  ;
2556         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->supercontents |= SUPERCONTENTS_AREAPORTAL   ;
2557         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->supercontents |= SUPERCONTENTS_CLUSTERPORTAL;
2558         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->supercontents |= SUPERCONTENTS_DETAIL       ;
2559                 if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->supercontents |= SUPERCONTENTS_DONOTENTER   ;
2560         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->supercontents |= SUPERCONTENTS_FOG          ;
2561                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents |= SUPERCONTENTS_LAVA         ;
2562         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->supercontents |= SUPERCONTENTS_LIGHTFILTER  ;
2563         //      if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->supercontents |= SUPERCONTENTS_METALSTEPS   ;
2564         //      if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->supercontents |= SUPERCONTENTS_NODAMAGE     ;
2565         //      if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->supercontents |= SUPERCONTENTS_NODLIGHT     ;
2566         //      if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->supercontents |= SUPERCONTENTS_NODRAW       ;
2567                 if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->supercontents |= SUPERCONTENTS_NODROP       ;
2568         //      if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->supercontents |= SUPERCONTENTS_NOIMPACT     ;
2569         //      if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->supercontents |= SUPERCONTENTS_NOLIGHTMAP   ;
2570         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->supercontents |= SUPERCONTENTS_NOMARKS      ;
2571         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->supercontents |= SUPERCONTENTS_NOMIPMAPS    ;
2572                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents &=~SUPERCONTENTS_SOLID        ;
2573         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->supercontents |= SUPERCONTENTS_ORIGIN       ;
2574                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents |= SUPERCONTENTS_PLAYERCLIP   ;
2575                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents |= SUPERCONTENTS_SKY          ;
2576         //      if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->supercontents |= SUPERCONTENTS_SLICK        ;
2577                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents |= SUPERCONTENTS_SLIME        ;
2578         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->supercontents |= SUPERCONTENTS_STRUCTURAL   ;
2579         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->supercontents |= SUPERCONTENTS_TRANS        ;
2580                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents |= SUPERCONTENTS_WATER        ;
2581         //      if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->supercontents |= SUPERCONTENTS_POINTLIGHT   ;
2582         //      if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->supercontents |= SUPERCONTENTS_HINT         ;
2583         //      if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->supercontents |= SUPERCONTENTS_DUST         ;
2584                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents |= SUPERCONTENTS_BOTCLIP      | SUPERCONTENTS_MONSTERCLIP;
2585         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->supercontents |= SUPERCONTENTS_LIGHTGRID    ;
2586         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->supercontents |= SUPERCONTENTS_ANTIPORTAL   ;
2587
2588                 if (shader->dpmeshcollisions)
2589                         texture->basematerialflags |= MATERIALFLAG_MESHCOLLISIONS;
2590                 if (shader->dpshaderkill && developer_extra.integer)
2591                         Con_DPrintf("^1%s:^7 killing shader ^3\"%s\" because of cvar\n", loadmodel->name, name);
2592         }
2593         else if (!strcmp(texture->name, "noshader") || !texture->name[0])
2594         {
2595                 if (developer_extra.integer)
2596                         Con_DPrintf("^1%s:^7 using fallback noshader material for ^3\"%s\"\n", loadmodel->name, name);
2597                 texture->surfaceparms = 0;
2598                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2599         }
2600         else if (!strcmp(texture->name, "common/nodraw") || !strcmp(texture->name, "textures/common/nodraw"))
2601         {
2602                 if (developer_extra.integer)
2603                         Con_DPrintf("^1%s:^7 using fallback nodraw material for ^3\"%s\"\n", loadmodel->name, name);
2604                 texture->surfaceparms = 0;
2605                 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2606                 texture->supercontents = SUPERCONTENTS_SOLID;
2607         }
2608         else
2609         {
2610                 if (developer_extra.integer)
2611                         Con_DPrintf("^1%s:^7 No shader found for texture ^3\"%s\"\n", loadmodel->name, texture->name);
2612                 texture->surfaceparms = 0;
2613                 if (texture->surfaceflags & Q3SURFACEFLAG_NODRAW)
2614                 {
2615                         texture->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2616                         texture->supercontents = SUPERCONTENTS_SOLID;
2617                 }
2618                 else if (texture->surfaceflags & Q3SURFACEFLAG_SKY)
2619                 {
2620                         texture->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2621                         texture->supercontents = SUPERCONTENTS_SKY;
2622                 }
2623                 else
2624                 {
2625                         texture->basematerialflags |= MATERIALFLAG_WALL;
2626                         texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2627                 }
2628                 texture->numskinframes = 1;
2629                 if(cls.state == ca_dedicated)
2630                 {
2631                         texture->skinframes[0] = NULL;
2632                         success = false;
2633                 }
2634                 else
2635                 {
2636                         if (fallback)
2637                         {
2638                                 if ((texture->skinframes[0] = R_SkinFrame_LoadExternal(texture->name, defaulttexflags, false)))
2639                                 {
2640                                         if(texture->skinframes[0]->hasalpha)
2641                                                 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2642                                 }
2643                                 else
2644                                         success = false;
2645                         }
2646                         else
2647                                 success = false;
2648                         if (!success && warnmissing)
2649                                 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"\n", loadmodel->name, texture->name);
2650                 }
2651         }
2652         // init the animation variables
2653         texture->currentframe = texture;
2654         if (texture->numskinframes < 1)
2655                 texture->numskinframes = 1;
2656         if (!texture->skinframes[0])
2657                 texture->skinframes[0] = R_SkinFrame_LoadMissing();
2658         texture->currentskinframe = texture->skinframes[0];
2659         texture->backgroundcurrentskinframe = texture->backgroundskinframes[0];
2660         return success;
2661 }
2662
2663 skinfile_t *Mod_LoadSkinFiles(void)
2664 {
2665         int i, words, line, wordsoverflow;
2666         char *text;
2667         const char *data;
2668         skinfile_t *skinfile = NULL, *first = NULL;
2669         skinfileitem_t *skinfileitem;
2670         char word[10][MAX_QPATH];
2671
2672 /*
2673 sample file:
2674 U_bodyBox,models/players/Legoman/BikerA2.tga
2675 U_RArm,models/players/Legoman/BikerA1.tga
2676 U_LArm,models/players/Legoman/BikerA1.tga
2677 U_armor,common/nodraw
2678 U_sword,common/nodraw
2679 U_shield,common/nodraw
2680 U_homb,common/nodraw
2681 U_backpack,common/nodraw
2682 U_colcha,common/nodraw
2683 tag_head,
2684 tag_weapon,
2685 tag_torso,
2686 */
2687         memset(word, 0, sizeof(word));
2688         for (i = 0;i < 256 && (data = text = (char *)FS_LoadFile(va("%s_%i.skin", loadmodel->name, i), tempmempool, true, NULL));i++)
2689         {
2690                 // If it's the first file we parse
2691                 if (skinfile == NULL)
2692                 {
2693                         skinfile = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2694                         first = skinfile;
2695                 }
2696                 else
2697                 {
2698                         skinfile->next = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2699                         skinfile = skinfile->next;
2700                 }
2701                 skinfile->next = NULL;
2702
2703                 for(line = 0;;line++)
2704                 {
2705                         // parse line
2706                         if (!COM_ParseToken_QuakeC(&data, true))
2707                                 break;
2708                         if (!strcmp(com_token, "\n"))
2709                                 continue;
2710                         words = 0;
2711                         wordsoverflow = false;
2712                         do
2713                         {
2714                                 if (words < 10)
2715                                         strlcpy(word[words++], com_token, sizeof (word[0]));
2716                                 else
2717                                         wordsoverflow = true;
2718                         }
2719                         while (COM_ParseToken_QuakeC(&data, true) && strcmp(com_token, "\n"));
2720                         if (wordsoverflow)
2721                         {
2722                                 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);
2723                                 continue;
2724                         }
2725                         // words is always >= 1
2726                         if (!strcmp(word[0], "replace"))
2727                         {
2728                                 if (words == 3)
2729                                 {
2730                                         if (developer_loading.integer)
2731                                                 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
2732                                         skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2733                                         skinfileitem->next = skinfile->items;
2734                                         skinfile->items = skinfileitem;
2735                                         strlcpy (skinfileitem->name, word[1], sizeof (skinfileitem->name));
2736                                         strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2737                                 }
2738                                 else
2739                                         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]);
2740                         }
2741                         else if (words >= 2 && !strncmp(word[0], "tag_", 4))
2742                         {
2743                                 // tag name, like "tag_weapon,"
2744                                 // not used for anything (not even in Quake3)
2745                         }
2746                         else if (words >= 2 && !strcmp(word[1], ","))
2747                         {
2748                                 // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
2749                                 if (developer_loading.integer)
2750                                         Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
2751                                 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2752                                 skinfileitem->next = skinfile->items;
2753                                 skinfile->items = skinfileitem;
2754                                 strlcpy (skinfileitem->name, word[0], sizeof (skinfileitem->name));
2755                                 strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2756                         }
2757                         else
2758                                 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);
2759                 }
2760                 Mem_Free(text);
2761         }
2762         if (i)
2763                 loadmodel->numskins = i;
2764         return first;
2765 }
2766
2767 void Mod_FreeSkinFiles(skinfile_t *skinfile)
2768 {
2769         skinfile_t *next;
2770         skinfileitem_t *skinfileitem, *nextitem;
2771         for (;skinfile;skinfile = next)
2772         {
2773                 next = skinfile->next;
2774                 for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
2775                 {
2776                         nextitem = skinfileitem->next;
2777                         Mem_Free(skinfileitem);
2778                 }
2779                 Mem_Free(skinfile);
2780         }
2781 }
2782
2783 int Mod_CountSkinFiles(skinfile_t *skinfile)
2784 {
2785         int i;
2786         for (i = 0;skinfile;skinfile = skinfile->next, i++);
2787         return i;
2788 }
2789
2790 void Mod_SnapVertices(int numcomponents, int numvertices, float *vertices, float snap)
2791 {
2792         int i;
2793         double isnap = 1.0 / snap;
2794         for (i = 0;i < numvertices*numcomponents;i++)
2795                 vertices[i] = floor(vertices[i]*isnap)*snap;
2796 }
2797
2798 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
2799 {
2800         int i, outtriangles;
2801         float edgedir1[3], edgedir2[3], temp[3];
2802         // a degenerate triangle is one with no width (thickness, surface area)
2803         // these are characterized by having all 3 points colinear (along a line)
2804         // or having two points identical
2805         // the simplest check is to calculate the triangle's area
2806         for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
2807         {
2808                 // calculate first edge
2809                 VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir1);
2810                 VectorSubtract(vertex3f + inelement3i[2] * 3, vertex3f + inelement3i[0] * 3, edgedir2);
2811                 CrossProduct(edgedir1, edgedir2, temp);
2812                 if (VectorLength2(temp) < 0.001f)
2813                         continue; // degenerate triangle (no area)
2814                 // valid triangle (has area)
2815                 VectorCopy(inelement3i, outelement3i);
2816                 outelement3i += 3;
2817                 outtriangles++;
2818         }
2819         return outtriangles;
2820 }
2821
2822 void Mod_VertexRangeFromElements(int numelements, const int *elements, int *firstvertexpointer, int *lastvertexpointer)
2823 {
2824         int i, e;
2825         int firstvertex, lastvertex;
2826         if (numelements > 0 && elements)
2827         {
2828                 firstvertex = lastvertex = elements[0];
2829                 for (i = 1;i < numelements;i++)
2830                 {
2831                         e = elements[i];
2832                         firstvertex = min(firstvertex, e);
2833                         lastvertex = max(lastvertex, e);
2834                 }
2835         }
2836         else
2837                 firstvertex = lastvertex = 0;
2838         if (firstvertexpointer)
2839                 *firstvertexpointer = firstvertex;
2840         if (lastvertexpointer)
2841                 *lastvertexpointer = lastvertex;
2842 }
2843
2844 void Mod_MakeSortedSurfaces(dp_model_t *mod)
2845 {
2846         // make an optimal set of texture-sorted batches to draw...
2847         int j, t;
2848         int *firstsurfacefortexture;
2849         int *numsurfacesfortexture;
2850         if (!mod->sortedmodelsurfaces)
2851                 mod->sortedmodelsurfaces = (int *) Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->sortedmodelsurfaces));
2852         firstsurfacefortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*firstsurfacefortexture));
2853         numsurfacesfortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*numsurfacesfortexture));
2854         memset(numsurfacesfortexture, 0, mod->num_textures * sizeof(*numsurfacesfortexture));
2855         for (j = 0;j < mod->nummodelsurfaces;j++)
2856         {
2857                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2858                 int t = (int)(surface->texture - mod->data_textures);
2859                 numsurfacesfortexture[t]++;
2860         }
2861         j = 0;
2862         for (t = 0;t < mod->num_textures;t++)
2863         {
2864                 firstsurfacefortexture[t] = j;
2865                 j += numsurfacesfortexture[t];
2866         }
2867         for (j = 0;j < mod->nummodelsurfaces;j++)
2868         {
2869                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2870                 int t = (int)(surface->texture - mod->data_textures);
2871                 mod->sortedmodelsurfaces[firstsurfacefortexture[t]++] = j + mod->firstmodelsurface;
2872         }
2873         Mem_Free(firstsurfacefortexture);
2874         Mem_Free(numsurfacesfortexture);
2875 }
2876
2877 void Mod_BuildVBOs(void)
2878 {
2879         if (!loadmodel->surfmesh.num_vertices)
2880                 return;
2881
2882         if (gl_paranoid.integer && loadmodel->surfmesh.data_element3s && loadmodel->surfmesh.data_element3i)
2883         {
2884                 int i;
2885                 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2886                 {
2887                         if (loadmodel->surfmesh.data_element3s[i] != loadmodel->surfmesh.data_element3i[i])
2888                         {
2889                                 Con_Printf("Mod_BuildVBOs: element %u is incorrect (%u should be %u)\n", i, loadmodel->surfmesh.data_element3s[i], loadmodel->surfmesh.data_element3i[i]);
2890                                 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2891                         }
2892                 }
2893         }
2894
2895         // build r_vertexmesh_t array
2896         // (compressed interleaved array for D3D)
2897         if (!loadmodel->surfmesh.vertexmesh && vid.useinterleavedarrays)
2898         {
2899                 int vertexindex;
2900                 int numvertices = loadmodel->surfmesh.num_vertices;
2901                 r_vertexmesh_t *vertexmesh;
2902                 loadmodel->surfmesh.vertexmesh = vertexmesh = (r_vertexmesh_t*)Mem_Alloc(loadmodel->mempool, numvertices * sizeof(*loadmodel->surfmesh.vertexmesh));
2903                 for (vertexindex = 0;vertexindex < numvertices;vertexindex++, vertexmesh++)
2904                 {
2905                         VectorCopy(loadmodel->surfmesh.data_vertex3f + 3*vertexindex, vertexmesh->vertex3f);
2906                         VectorScale(loadmodel->surfmesh.data_svector3f + 3*vertexindex, 1.0f, vertexmesh->svector3f);
2907                         VectorScale(loadmodel->surfmesh.data_tvector3f + 3*vertexindex, 1.0f, vertexmesh->tvector3f);
2908                         VectorScale(loadmodel->surfmesh.data_normal3f + 3*vertexindex, 1.0f, vertexmesh->normal3f);
2909                         if (loadmodel->surfmesh.data_lightmapcolor4f)
2910                                 Vector4Copy(loadmodel->surfmesh.data_lightmapcolor4f + 4*vertexindex, vertexmesh->color4f);
2911                         Vector2Copy(loadmodel->surfmesh.data_texcoordtexture2f + 2*vertexindex, vertexmesh->texcoordtexture2f);
2912                         if (loadmodel->surfmesh.data_texcoordlightmap2f)
2913                                 Vector2Scale(loadmodel->surfmesh.data_texcoordlightmap2f + 2*vertexindex, 1.0f, vertexmesh->texcoordlightmap2f);
2914                 }
2915         }
2916
2917         // upload r_vertexmesh_t array as a buffer
2918         if (loadmodel->surfmesh.vertexmesh && !loadmodel->surfmesh.vertexmeshbuffer)
2919                 loadmodel->surfmesh.vertexmeshbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.vertexmesh, loadmodel->surfmesh.num_vertices * sizeof(*loadmodel->surfmesh.vertexmesh), loadmodel->name, false, false, false);
2920
2921         // upload vertex3f array as a buffer
2922         if (loadmodel->surfmesh.data_vertex3f && !loadmodel->surfmesh.vertex3fbuffer)
2923                 loadmodel->surfmesh.vertex3fbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.num_vertices * sizeof(float[3]), loadmodel->name, false, false, false);
2924
2925         // upload short indices as a buffer
2926         if (loadmodel->surfmesh.data_element3s && !loadmodel->surfmesh.data_element3s_indexbuffer)
2927                 loadmodel->surfmesh.data_element3s_indexbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_element3s, loadmodel->surfmesh.num_triangles * sizeof(short[3]), loadmodel->name, true, false, true);
2928
2929         // upload int indices as a buffer
2930         if (loadmodel->surfmesh.data_element3i && !loadmodel->surfmesh.data_element3i_indexbuffer && !loadmodel->surfmesh.data_element3s)
2931                 loadmodel->surfmesh.data_element3i_indexbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles * sizeof(int[3]), loadmodel->name, true, false, false);
2932
2933         // only build a vbo if one has not already been created (this is important for brush models which load specially)
2934         // vertex buffer is several arrays and we put them in the same buffer
2935         //
2936         // is this wise?  the texcoordtexture2f array is used with dynamic
2937         // vertex/svector/tvector/normal when rendering animated models, on the
2938         // other hand animated models don't use a lot of vertices anyway...
2939         if (!loadmodel->surfmesh.vbo_vertexbuffer && !vid.useinterleavedarrays)
2940         {
2941                 size_t size;
2942                 unsigned char *mem;
2943                 size = 0;
2944                 loadmodel->surfmesh.vbooffset_vertex3f           = size;if (loadmodel->surfmesh.data_vertex3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2945                 loadmodel->surfmesh.vbooffset_svector3f          = size;if (loadmodel->surfmesh.data_svector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2946                 loadmodel->surfmesh.vbooffset_tvector3f          = size;if (loadmodel->surfmesh.data_tvector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2947                 loadmodel->surfmesh.vbooffset_normal3f           = size;if (loadmodel->surfmesh.data_normal3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2948                 loadmodel->surfmesh.vbooffset_texcoordtexture2f  = size;if (loadmodel->surfmesh.data_texcoordtexture2f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2949                 loadmodel->surfmesh.vbooffset_texcoordlightmap2f = size;if (loadmodel->surfmesh.data_texcoordlightmap2f) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2950                 loadmodel->surfmesh.vbooffset_lightmapcolor4f    = size;if (loadmodel->surfmesh.data_lightmapcolor4f   ) size += loadmodel->surfmesh.num_vertices * sizeof(float[4]);
2951                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
2952                 if (loadmodel->surfmesh.data_vertex3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_vertex3f          , loadmodel->surfmesh.data_vertex3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2953                 if (loadmodel->surfmesh.data_svector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_svector3f         , loadmodel->surfmesh.data_svector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2954                 if (loadmodel->surfmesh.data_tvector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_tvector3f         , loadmodel->surfmesh.data_tvector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2955                 if (loadmodel->surfmesh.data_normal3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_normal3f          , loadmodel->surfmesh.data_normal3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2956                 if (loadmodel->surfmesh.data_texcoordtexture2f ) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordtexture2f , loadmodel->surfmesh.data_texcoordtexture2f , loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2957                 if (loadmodel->surfmesh.data_texcoordlightmap2f) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordlightmap2f, loadmodel->surfmesh.data_texcoordlightmap2f, loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2958                 if (loadmodel->surfmesh.data_lightmapcolor4f   ) memcpy(mem + loadmodel->surfmesh.vbooffset_lightmapcolor4f   , loadmodel->surfmesh.data_lightmapcolor4f   , loadmodel->surfmesh.num_vertices * sizeof(float[4]));
2959                 loadmodel->surfmesh.vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, loadmodel->name, false, false, false);
2960                 Mem_Free(mem);
2961         }
2962 }
2963
2964 static void Mod_Decompile_OBJ(dp_model_t *model, const char *filename, const char *mtlfilename, const char *originalfilename)
2965 {
2966         int submodelindex, vertexindex, surfaceindex, triangleindex, textureindex, countvertices = 0, countsurfaces = 0, countfaces = 0, counttextures = 0;
2967         int a, b, c;
2968         const char *texname;
2969         const int *e;
2970         const float *v, *vn, *vt;
2971         size_t l;
2972         size_t outbufferpos = 0;
2973         size_t outbuffermax = 0x100000;
2974         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
2975         const msurface_t *surface;
2976         const int maxtextures = 256;
2977         char *texturenames = (char *) Z_Malloc(maxtextures * MAX_QPATH);
2978         dp_model_t *submodel;
2979
2980         // construct the mtllib file
2981         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "# mtllib for %s exported by darkplaces engine\n", originalfilename);
2982         if (l > 0)
2983                 outbufferpos += l;
2984         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
2985         {
2986                 countsurfaces++;
2987                 countvertices += surface->num_vertices;
2988                 countfaces += surface->num_triangles;
2989                 texname = (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default";
2990                 for (textureindex = 0;textureindex < counttextures;textureindex++)
2991                         if (!strcmp(texturenames + textureindex * MAX_QPATH, texname))
2992                                 break;
2993                 if (textureindex < counttextures)
2994                         continue; // already wrote this material entry
2995                 if (textureindex >= maxtextures)
2996                         continue; // just a precaution
2997                 textureindex = counttextures++;
2998                 strlcpy(texturenames + textureindex * MAX_QPATH, texname, MAX_QPATH);
2999                 if (outbufferpos >= outbuffermax >> 1)
3000                 {
3001                         outbuffermax *= 2;
3002                         oldbuffer = outbuffer;
3003                         outbuffer = (char *) Z_Malloc(outbuffermax);
3004                         memcpy(outbuffer, oldbuffer, outbufferpos);
3005                         Z_Free(oldbuffer);
3006                 }
3007                 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");
3008                 if (l > 0)
3009                         outbufferpos += l;
3010         }
3011
3012         // write the mtllib file
3013         FS_WriteFile(mtlfilename, outbuffer, outbufferpos);
3014
3015         // construct the obj file
3016         outbufferpos = 0;
3017         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);
3018         if (l > 0)
3019                 outbufferpos += l;
3020
3021         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)
3022         {
3023                 if (outbufferpos >= outbuffermax >> 1)
3024                 {
3025                         outbuffermax *= 2;
3026                         oldbuffer = outbuffer;
3027                         outbuffer = (char *) Z_Malloc(outbuffermax);
3028                         memcpy(outbuffer, oldbuffer, outbufferpos);
3029                         Z_Free(oldbuffer);
3030                 }
3031                 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]);
3032                 if (l > 0)
3033                         outbufferpos += l;
3034         }
3035
3036         for (submodelindex = 0;submodelindex < max(1, model->brush.numsubmodels);submodelindex++)
3037         {
3038                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "o %i\n", submodelindex);
3039                 if (l > 0)
3040                         outbufferpos += l;
3041                 submodel = model->brush.numsubmodels ? model->brush.submodels[submodelindex] : model;
3042                 for (surfaceindex = 0;surfaceindex < submodel->nummodelsurfaces;surfaceindex++)
3043                 {
3044                         surface = model->data_surfaces + submodel->sortedmodelsurfaces[surfaceindex];
3045                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "usemtl %s\n", (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default");
3046                         if (l > 0)
3047                                 outbufferpos += l;
3048                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3049                         {
3050                                 if (outbufferpos >= outbuffermax >> 1)
3051                                 {
3052                                         outbuffermax *= 2;
3053                                         oldbuffer = outbuffer;
3054                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3055                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3056                                         Z_Free(oldbuffer);
3057                                 }
3058                                 a = e[0]+1;
3059                                 b = e[1]+1;
3060                                 c = e[2]+1;
3061                                 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);
3062                                 if (l > 0)
3063                                         outbufferpos += l;
3064                         }
3065                 }
3066         }
3067
3068         // write the obj file
3069         FS_WriteFile(filename, outbuffer, outbufferpos);
3070
3071         // clean up
3072         Z_Free(outbuffer);
3073         Z_Free(texturenames);
3074
3075         // print some stats
3076         Con_Printf("Wrote %s (%i bytes, %i vertices, %i faces, %i surfaces with %i distinct textures)\n", filename, (int)outbufferpos, countvertices, countfaces, countsurfaces, counttextures);
3077 }
3078
3079 static void Mod_Decompile_SMD(dp_model_t *model, const char *filename, int firstpose, int numposes, qboolean writetriangles)
3080 {
3081         int countnodes = 0, counttriangles = 0, countframes = 0;
3082         int surfaceindex;
3083         int triangleindex;
3084         int transformindex;
3085         int poseindex;
3086         int cornerindex;
3087         const int *e;
3088         size_t l;
3089         size_t outbufferpos = 0;
3090         size_t outbuffermax = 0x100000;
3091         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3092         const msurface_t *surface;
3093         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "version 1\nnodes\n");
3094         if (l > 0)
3095                 outbufferpos += l;
3096         for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3097         {
3098                 if (outbufferpos >= outbuffermax >> 1)
3099                 {
3100                         outbuffermax *= 2;
3101                         oldbuffer = outbuffer;
3102                         outbuffer = (char *) Z_Malloc(outbuffermax);
3103                         memcpy(outbuffer, oldbuffer, outbufferpos);
3104                         Z_Free(oldbuffer);
3105                 }
3106                 countnodes++;
3107                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i \"%s\" %3i\n", transformindex, model->data_bones[transformindex].name, model->data_bones[transformindex].parent);
3108                 if (l > 0)
3109                         outbufferpos += l;
3110         }
3111         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\nskeleton\n");
3112         if (l > 0)
3113                 outbufferpos += l;
3114         for (poseindex = 0;poseindex < numposes;poseindex++)
3115         {
3116                 countframes++;
3117                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "time %i\n", poseindex);
3118                 if (l > 0)
3119                         outbufferpos += l;
3120                 for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3121                 {
3122                         float angles[3];
3123                         float mtest[4][3];
3124                         matrix4x4_t posematrix;
3125                         if (outbufferpos >= outbuffermax >> 1)
3126                         {
3127                                 outbuffermax *= 2;
3128                                 oldbuffer = outbuffer;
3129                                 outbuffer = (char *) Z_Malloc(outbuffermax);
3130                                 memcpy(outbuffer, oldbuffer, outbufferpos);
3131                                 Z_Free(oldbuffer);
3132                         }
3133
3134                         // strangely the smd angles are for a transposed matrix, so we
3135                         // have to generate a transposed matrix, then convert that...
3136                         Matrix4x4_FromBonePose6s(&posematrix, model->num_posescale, model->data_poses6s + 6*(model->num_bones * poseindex + transformindex));
3137                         Matrix4x4_ToArray12FloatGL(&posematrix, mtest[0]);
3138                         AnglesFromVectors(angles, mtest[0], mtest[2], false);
3139                         if (angles[0] >= 180) angles[0] -= 360;
3140                         if (angles[1] >= 180) angles[1] -= 360;
3141                         if (angles[2] >= 180) angles[2] -= 360;
3142
3143 #if 0
3144 {
3145                         float a = DEG2RAD(angles[ROLL]);
3146                         float b = DEG2RAD(angles[PITCH]);
3147                         float c = DEG2RAD(angles[YAW]);
3148                         float cy, sy, cp, sp, cr, sr;
3149                         float test[4][3];
3150                         // smd matrix construction, for comparing
3151                         sy = sin(c);
3152                         cy = cos(c);
3153                         sp = sin(b);
3154                         cp = cos(b);
3155                         sr = sin(a);
3156                         cr = cos(a);
3157
3158                         test[0][0] = cp*cy;
3159                         test[0][1] = cp*sy;
3160                         test[0][2] = -sp;
3161                         test[1][0] = sr*sp*cy+cr*-sy;
3162                         test[1][1] = sr*sp*sy+cr*cy;
3163                         test[1][2] = sr*cp;
3164                         test[2][0] = (cr*sp*cy+-sr*-sy);
3165                         test[2][1] = (cr*sp*sy+-sr*cy);
3166                         test[2][2] = cr*cp;
3167                         test[3][0] = pose[9];
3168                         test[3][1] = pose[10];
3169                         test[3][2] = pose[11];
3170 }
3171 #endif
3172                         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]));
3173                         if (l > 0)
3174                                 outbufferpos += l;
3175                 }
3176         }
3177         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3178         if (l > 0)
3179                 outbufferpos += l;
3180         if (writetriangles)
3181         {
3182                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "triangles\n");
3183                 if (l > 0)
3184                         outbufferpos += l;
3185                 for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3186                 {
3187                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3188                         {
3189                                 counttriangles++;
3190                                 if (outbufferpos >= outbuffermax >> 1)
3191                                 {
3192                                         outbuffermax *= 2;
3193                                         oldbuffer = outbuffer;
3194                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3195                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3196                                         Z_Free(oldbuffer);
3197                                 }
3198                                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%s\n", surface->texture && surface->texture->name[0] ? surface->texture->name : "default.bmp");
3199                                 if (l > 0)
3200                                         outbufferpos += l;
3201                                 for (cornerindex = 0;cornerindex < 3;cornerindex++)
3202                                 {
3203                                         const int index = e[2-cornerindex];
3204                                         const float *v = model->surfmesh.data_vertex3f + index * 3;
3205                                         const float *vn = model->surfmesh.data_normal3f + index * 3;
3206                                         const float *vt = model->surfmesh.data_texcoordtexture2f + index * 2;
3207                                         const int b = model->surfmesh.blends[index];
3208                                         if (b < model->num_bones)
3209                                                 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]);
3210                                         else
3211                                         {
3212                                                 const blendweights_t *w = model->surfmesh.data_blendweights + b - model->num_bones;
3213                                                 const unsigned char *wi = w->index;
3214                                                 const unsigned char *wf = w->influence;
3215                                             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);
3216                                                 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);
3217                                                 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);
3218                                                 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]);
3219                                         }
3220                                         if (l > 0)
3221                                                 outbufferpos += l;
3222                                 }
3223                         }
3224                 }
3225                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3226                 if (l > 0)
3227                         outbufferpos += l;
3228         }
3229
3230         FS_WriteFile(filename, outbuffer, outbufferpos);
3231         Z_Free(outbuffer);
3232
3233         Con_Printf("Wrote %s (%i bytes, %i nodes, %i frames, %i triangles)\n", filename, (int)outbufferpos, countnodes, countframes, counttriangles);
3234 }
3235
3236 /*
3237 ================
3238 Mod_Decompile_f
3239
3240 decompiles a model to editable files
3241 ================
3242 */
3243 static void Mod_Decompile_f(void)
3244 {
3245         int i, j, k, l, first, count;
3246         dp_model_t *mod;
3247         char inname[MAX_QPATH];
3248         char outname[MAX_QPATH];
3249         char mtlname[MAX_QPATH];
3250         char basename[MAX_QPATH];
3251         char animname[MAX_QPATH];
3252         char animname2[MAX_QPATH];
3253         char zymtextbuffer[16384];
3254         char dpmtextbuffer[16384];
3255         char framegroupstextbuffer[16384];
3256         int zymtextsize = 0;
3257         int dpmtextsize = 0;
3258         int framegroupstextsize = 0;
3259
3260         if (Cmd_Argc() != 2)
3261         {
3262                 Con_Print("usage: modeldecompile <filename>\n");
3263                 return;
3264         }
3265
3266         strlcpy(inname, Cmd_Argv(1), sizeof(inname));
3267         FS_StripExtension(inname, basename, sizeof(basename));
3268
3269         mod = Mod_ForName(inname, false, true, inname[0] == '*' ? cl.model_name[1] : NULL);
3270         if (mod->brush.submodel)
3271         {
3272                 // if we're decompiling a submodel, be sure to give it a proper name based on its parent
3273                 FS_StripExtension(cl.model_name[1], outname, sizeof(outname));
3274                 dpsnprintf(basename, sizeof(basename), "%s/%s", outname, mod->name);
3275                 outname[0] = 0;
3276         }
3277         if (!mod)
3278         {
3279                 Con_Print("No such model\n");
3280                 return;
3281         }
3282         if (!mod->surfmesh.num_triangles)
3283         {
3284                 Con_Print("Empty model (or sprite)\n");
3285                 return;
3286         }
3287
3288         // export OBJ if possible (not on sprites)
3289         if (mod->surfmesh.num_triangles)
3290         {
3291                 dpsnprintf(outname, sizeof(outname), "%s_decompiled.obj", basename);
3292                 dpsnprintf(mtlname, sizeof(mtlname), "%s_decompiled.mtl", basename);
3293                 Mod_Decompile_OBJ(mod, outname, mtlname, inname);
3294         }
3295
3296         // export SMD if possible (only for skeletal models)
3297         if (mod->surfmesh.num_triangles && mod->num_bones)
3298         {
3299                 dpsnprintf(outname, sizeof(outname), "%s_decompiled/ref1.smd", basename);
3300                 Mod_Decompile_SMD(mod, outname, 0, 1, true);
3301                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "output out.zym\nscale 1\norigin 0 0 0\nmesh ref1.smd\n");
3302                 if (l > 0) zymtextsize += l;
3303                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "outputdir .\nmodel out\nscale 1\norigin 0 0 0\nscene ref1.smd\n");
3304                 if (l > 0) dpmtextsize += l;
3305                 for (i = 0;i < mod->numframes;i = j)
3306                 {
3307                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3308                         first = mod->animscenes[i].firstframe;
3309                         if (mod->animscenes[i].framecount > 1)
3310                         {
3311                                 // framegroup anim
3312                                 count = mod->animscenes[i].framecount;
3313                                 j = i + 1;
3314                         }
3315                         else
3316                         {
3317                                 // individual frame
3318                                 // check for additional frames with same name
3319                                 for (l = 0, k = strlen(animname);animname[l];l++)
3320                                         if(animname[l] < '0' || animname[l] > '9')
3321                                                 k = l + 1;
3322                                 if(k > 0 && animname[k-1] == '_')
3323                                         --k;
3324                                 animname[k] = 0;
3325                                 count = mod->num_poses - first;
3326                                 for (j = i + 1;j < mod->numframes;j++)
3327                                 {
3328                                         strlcpy(animname2, mod->animscenes[j].name, sizeof(animname2));
3329                                         for (l = 0, k = strlen(animname2);animname2[l];l++)
3330                                                 if(animname2[l] < '0' || animname2[l] > '9')
3331                                                         k = l + 1;
3332                                         if(k > 0 && animname[k-1] == '_')
3333                                                 --k;
3334                                         animname2[k] = 0;
3335                                         if (strcmp(animname2, animname) || mod->animscenes[j].framecount > 1)
3336                                         {
3337                                                 count = mod->animscenes[j].firstframe - first;
3338                                                 break;
3339                                         }
3340                                 }
3341                                 // if it's only one frame, use the original frame name
3342                                 if (j == i + 1)
3343                                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3344
3345                         }
3346                         dpsnprintf(outname, sizeof(outname), "%s_decompiled/%s.smd", basename, animname);
3347                         Mod_Decompile_SMD(mod, outname, first, count, false);
3348                         if (zymtextsize < (int)sizeof(zymtextbuffer) - 100)
3349                         {
3350                                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3351                                 if (l > 0) zymtextsize += l;
3352                         }
3353                         if (dpmtextsize < (int)sizeof(dpmtextbuffer) - 100)
3354                         {
3355                                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3356                                 if (l > 0) dpmtextsize += l;
3357                         }
3358                         if (framegroupstextsize < (int)sizeof(framegroupstextbuffer) - 100)
3359                         {
3360                                 l = dpsnprintf(framegroupstextbuffer + framegroupstextsize, sizeof(framegroupstextbuffer) - framegroupstextsize, "%d %d %f %d // %s\n", first, count, mod->animscenes[i].framerate, mod->animscenes[i].loop, animname);
3361                                 if (l > 0) framegroupstextsize += l;
3362                         }
3363                 }
3364                 if (zymtextsize)
3365                         FS_WriteFile(va("%s_decompiled/out_zym.txt", basename), zymtextbuffer, (fs_offset_t)zymtextsize);
3366                 if (dpmtextsize)
3367                         FS_WriteFile(va("%s_decompiled/out_dpm.txt", basename), dpmtextbuffer, (fs_offset_t)dpmtextsize);
3368                 if (framegroupstextsize)
3369                         FS_WriteFile(va("%s_decompiled.framegroups", basename), framegroupstextbuffer, (fs_offset_t)framegroupstextsize);
3370         }
3371 }
3372
3373 void Mod_AllocLightmap_Init(mod_alloclightmap_state_t *state, int width, int height)
3374 {
3375         int y;
3376         memset(state, 0, sizeof(*state));
3377         state->width = width;
3378         state->height = height;
3379         state->currentY = 0;
3380         state->rows = (mod_alloclightmap_row_t *)Mem_Alloc(loadmodel->mempool, state->height * sizeof(*state->rows));
3381         for (y = 0;y < state->height;y++)
3382         {
3383                 state->rows[y].currentX = 0;
3384                 state->rows[y].rowY = -1;
3385         }
3386 }
3387
3388 void Mod_AllocLightmap_Reset(mod_alloclightmap_state_t *state)
3389 {
3390         int y;
3391         state->currentY = 0;
3392         for (y = 0;y < state->height;y++)
3393         {
3394                 state->rows[y].currentX = 0;
3395                 state->rows[y].rowY = -1;
3396         }
3397 }
3398
3399 void Mod_AllocLightmap_Free(mod_alloclightmap_state_t *state)
3400 {
3401         if (state->rows)
3402                 Mem_Free(state->rows);
3403         memset(state, 0, sizeof(*state));
3404 }
3405
3406 qboolean Mod_AllocLightmap_Block(mod_alloclightmap_state_t *state, int blockwidth, int blockheight, int *outx, int *outy)
3407 {
3408         mod_alloclightmap_row_t *row;
3409         int y;
3410
3411         row = state->rows + blockheight;
3412         if ((row->rowY < 0) || (row->currentX + blockwidth > state->width))
3413         {
3414                 if (state->currentY + blockheight <= state->height)
3415                 {
3416                         // use the current allocation position
3417                         row->rowY = state->currentY;
3418                         row->currentX = 0;
3419                         state->currentY += blockheight;
3420                 }
3421                 else
3422                 {
3423                         // find another position
3424                         for (y = blockheight;y < state->height;y++)
3425                         {
3426                                 if ((state->rows[y].rowY >= 0) && (state->rows[y].currentX + blockwidth <= state->width))
3427                                 {
3428                                         row = state->rows + y;
3429                                         break;
3430                                 }
3431                         }
3432                         if (y == state->height)
3433                                 return false;
3434                 }
3435         }
3436         *outy = row->rowY;
3437         *outx = row->currentX;
3438         row->currentX += blockwidth;
3439
3440         return true;
3441 }
3442
3443 typedef struct lightmapsample_s
3444 {
3445         float pos[3];
3446         float sh1[4][3];
3447         float *vertex_color;
3448         unsigned char *lm_bgr;
3449         unsigned char *lm_dir;
3450 }
3451 lightmapsample_t;
3452
3453 typedef struct lightmapvertex_s
3454 {
3455         int index;
3456         float pos[3];
3457         float normal[3];
3458         float texcoordbase[2];
3459         float texcoordlightmap[2];
3460         float lightcolor[4];
3461 }
3462 lightmapvertex_t;
3463
3464 typedef struct lightmaptriangle_s
3465 {
3466         int triangleindex;
3467         int surfaceindex;
3468         int lightmapindex;
3469         int axis;
3470         int lmoffset[2];
3471         int lmsize[2];
3472         // 2D modelspace coordinates of min corner
3473         // snapped to lightmap grid but not in grid coordinates
3474         float lmbase[2];
3475         // 2D modelspace to lightmap coordinate scale
3476         float lmscale[2];
3477         float vertex[3][3];
3478         float mins[3];
3479         float maxs[3];
3480 }
3481 lightmaptriangle_t;
3482
3483 typedef struct lightmaplight_s
3484 {
3485         float origin[3];
3486         float radius;
3487         float iradius;
3488         float radius2;
3489         float color[3];
3490         svbsp_t svbsp;
3491 }
3492 lightmaplight_t;
3493
3494 lightmaptriangle_t *mod_generatelightmaps_lightmaptriangles;
3495
3496 #define MAX_LIGHTMAPSAMPLES 64
3497 static int mod_generatelightmaps_numoffsets[3];
3498 static float mod_generatelightmaps_offsets[3][MAX_LIGHTMAPSAMPLES][3];
3499
3500 static int mod_generatelightmaps_numlights;
3501 static lightmaplight_t *mod_generatelightmaps_lightinfo;
3502
3503 extern int R_Shadow_GetRTLightInfo(unsigned int lightindex, float *origin, float *radius, float *color);
3504 extern cvar_t r_shadow_lightattenuationdividebias;
3505 extern cvar_t r_shadow_lightattenuationlinearscale;
3506
3507 static void Mod_GenerateLightmaps_LightPoint(dp_model_t *model, const vec3_t pos, vec3_t ambient, vec3_t diffuse, vec3_t lightdir)
3508 {
3509         int i;
3510         int index;
3511         int result;
3512         float relativepoint[3];
3513         float color[3];
3514         float dir[3];
3515         float dist;
3516         float dist2;
3517         float intensity;
3518         float sample[5*3];
3519         float lightorigin[3];
3520         float lightradius;
3521         float lightradius2;
3522         float lightiradius;
3523         float lightcolor[3];
3524         trace_t trace;
3525         for (i = 0;i < 5*3;i++)
3526                 sample[i] = 0.0f;
3527         for (index = 0;;index++)
3528         {
3529                 result = R_Shadow_GetRTLightInfo(index, lightorigin, &lightradius, lightcolor);
3530                 if (result < 0)
3531                         break;
3532                 if (result == 0)
3533                         continue;
3534                 lightradius2 = lightradius * lightradius;
3535                 VectorSubtract(lightorigin, pos, relativepoint);
3536                 dist2 = VectorLength2(relativepoint);
3537                 if (dist2 >= lightradius2)
3538                         continue;
3539                 lightiradius = 1.0f / lightradius;
3540                 dist = sqrt(dist2) * lightiradius;
3541                 intensity = (1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist);
3542                 if (intensity <= 0.0f)
3543                         continue;
3544                 if (model && model->TraceLine)
3545                 {
3546                         model->TraceLine(model, NULL, NULL, &trace, pos, lightorigin, SUPERCONTENTS_VISBLOCKERMASK);
3547                         if (trace.fraction < 1)
3548                                 continue;
3549                 }
3550                 // scale down intensity to add to both ambient and diffuse
3551                 //intensity *= 0.5f;
3552                 VectorNormalize(relativepoint);
3553                 VectorScale(lightcolor, intensity, color);
3554                 VectorMA(sample    , 0.5f            , color, sample    );
3555                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3556                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3557                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3558                 // calculate a weighted average light direction as well
3559                 intensity *= VectorLength(color);
3560                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3561         }
3562         // calculate the direction we'll use to reduce the sample to a directional light source
3563         VectorCopy(sample + 12, dir);
3564         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3565         VectorNormalize(dir);
3566         // extract the diffuse color along the chosen direction and scale it
3567         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]);
3568         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]);
3569         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]);
3570         // subtract some of diffuse from ambient
3571         VectorMA(sample, -0.333f, diffuse, ambient);
3572         // store the normalized lightdir
3573         VectorCopy(dir, lightdir);
3574 }
3575
3576 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(const dp_model_t *model, svbsp_t *svbsp, const float *mins, const float *maxs)
3577 {
3578         int surfaceindex;
3579         int triangleindex;
3580         const msurface_t *surface;
3581         const float *vertex3f = model->surfmesh.data_vertex3f;
3582         const int *element3i = model->surfmesh.data_element3i;
3583         const int *e;
3584         float v2[3][3];
3585         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->nummodelsurfaces;surfaceindex++, surface++)
3586         {
3587                 if (!BoxesOverlap(surface->mins, surface->maxs, mins, maxs))
3588                         continue;
3589                 if (surface->texture->basematerialflags & MATERIALFLAG_NOSHADOW)
3590                         continue;
3591                 for (triangleindex = 0, e = element3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3592                 {
3593                         VectorCopy(vertex3f + 3*e[0], v2[0]);
3594                         VectorCopy(vertex3f + 3*e[1], v2[1]);
3595                         VectorCopy(vertex3f + 3*e[2], v2[2]);
3596                         SVBSP_AddPolygon(svbsp, 3, v2[0], true, NULL, NULL, 0);
3597                 }
3598         }
3599 }
3600
3601 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(dp_model_t *model, lightmaplight_t *lightinfo)
3602 {
3603         int maxnodes = 1<<14;
3604         svbsp_node_t *nodes;
3605         float origin[3];
3606         float mins[3];
3607         float maxs[3];
3608         svbsp_t svbsp;
3609         VectorSet(mins, lightinfo->origin[0] - lightinfo->radius, lightinfo->origin[1] - lightinfo->radius, lightinfo->origin[2] - lightinfo->radius);
3610         VectorSet(maxs, lightinfo->origin[0] + lightinfo->radius, lightinfo->origin[1] + lightinfo->radius, lightinfo->origin[2] + lightinfo->radius);
3611         VectorCopy(lightinfo->origin, origin);
3612         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3613         for (;;)
3614         {
3615                 SVBSP_Init(&svbsp, origin, maxnodes, nodes);
3616                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(model, &svbsp, mins, maxs);
3617                 if (svbsp.ranoutofnodes)
3618                 {
3619                         maxnodes *= 16;
3620                         if (maxnodes > 1<<22)
3621                         {
3622                                 Mem_Free(nodes);
3623                                 return;
3624                         }
3625                         Mem_Free(nodes);
3626                         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3627                 }
3628                 else
3629                         break;
3630         }
3631         if (svbsp.numnodes > 0)
3632         {
3633                 svbsp.nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, svbsp.numnodes * sizeof(*nodes));
3634                 memcpy(svbsp.nodes, nodes, svbsp.numnodes * sizeof(*nodes));
3635                 lightinfo->svbsp = svbsp;
3636         }
3637         Mem_Free(nodes);
3638 }
3639
3640 static void Mod_GenerateLightmaps_CreateLights(dp_model_t *model)
3641 {
3642         int index;
3643         int result;
3644         lightmaplight_t *lightinfo;
3645         float origin[3];
3646         float radius;
3647         float color[3];
3648         mod_generatelightmaps_numlights = 0;
3649         for (index = 0;;index++)
3650         {
3651                 result = R_Shadow_GetRTLightInfo(index, origin, &radius, color);
3652                 if (result < 0)
3653                         break;
3654                 if (result > 0)
3655                         mod_generatelightmaps_numlights++;
3656         }
3657         if (mod_generatelightmaps_numlights > 0)
3658         {
3659                 mod_generatelightmaps_lightinfo = (lightmaplight_t *)Mem_Alloc(tempmempool, mod_generatelightmaps_numlights * sizeof(*mod_generatelightmaps_lightinfo));
3660                 lightinfo = mod_generatelightmaps_lightinfo;
3661                 for (index = 0;;index++)
3662                 {
3663                         result = R_Shadow_GetRTLightInfo(index, lightinfo->origin, &lightinfo->radius, lightinfo->color);
3664                         if (result < 0)
3665                                 break;
3666                         if (result > 0)
3667                                 lightinfo++;
3668                 }
3669         }
3670         for (index = 0, lightinfo = mod_generatelightmaps_lightinfo;index < mod_generatelightmaps_numlights;index++, lightinfo++)
3671         {
3672                 lightinfo->iradius = 1.0f / lightinfo->radius;
3673                 lightinfo->radius2 = lightinfo->radius * lightinfo->radius;
3674                 // TODO: compute svbsp
3675                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(model, lightinfo);
3676         }
3677 }
3678
3679 static void Mod_GenerateLightmaps_DestroyLights(dp_model_t *model)
3680 {
3681         int i;
3682         if (mod_generatelightmaps_lightinfo)
3683         {
3684                 for (i = 0;i < mod_generatelightmaps_numlights;i++)
3685                         if (mod_generatelightmaps_lightinfo[i].svbsp.nodes)
3686                                 Mem_Free(mod_generatelightmaps_lightinfo[i].svbsp.nodes);
3687                 Mem_Free(mod_generatelightmaps_lightinfo);
3688         }
3689         mod_generatelightmaps_lightinfo = NULL;
3690         mod_generatelightmaps_numlights = 0;
3691 }
3692
3693 static qboolean Mod_GenerateLightmaps_SamplePoint_SVBSP(const svbsp_t *svbsp, const float *pos)
3694 {
3695         const svbsp_node_t *node;
3696         const svbsp_node_t *nodes = svbsp->nodes;
3697         int num = 0;
3698         while (num >= 0)
3699         {
3700                 node = nodes + num;
3701                 num = node->children[DotProduct(node->plane, pos) < node->plane[3]];
3702         }
3703         return num == -1; // true if empty, false if solid (shadowed)
3704 }
3705
3706 static void Mod_GenerateLightmaps_SamplePoint(const float *pos, const float *normal, float *sample, int numoffsets, const float *offsets)
3707 {
3708         int i;
3709         float relativepoint[3];
3710         float color[3];
3711         float offsetpos[3];
3712         float dist;
3713         float dist2;
3714         float intensity;
3715         int offsetindex;
3716         int hits;
3717         int tests;
3718         const lightmaplight_t *lightinfo;
3719         trace_t trace;
3720         for (i = 0;i < 5*3;i++)
3721                 sample[i] = 0.0f;
3722         for (i = 0, lightinfo = mod_generatelightmaps_lightinfo;i < mod_generatelightmaps_numlights;i++, lightinfo++)
3723         {
3724                 //R_SampleRTLights(pos, sample, numoffsets, offsets);
3725                 VectorSubtract(lightinfo->origin, pos, relativepoint);
3726                 // don't accept light from behind a surface, it causes bad shading
3727                 if (normal && DotProduct(relativepoint, normal) <= 0)
3728                         continue;
3729                 dist2 = VectorLength2(relativepoint);
3730                 if (dist2 >= lightinfo->radius2)
3731                         continue;
3732                 dist = sqrt(dist2) * lightinfo->iradius;
3733                 intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
3734                 if (intensity <= 0)
3735                         continue;
3736                 if (cl.worldmodel && cl.worldmodel->TraceLine && numoffsets > 0)
3737                 {
3738                         hits = 0;
3739                         tests = 1;
3740                         if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, pos))
3741                                 hits++;
3742                         for (offsetindex = 1;offsetindex < numoffsets;offsetindex++)
3743                         {
3744                                 VectorAdd(pos, offsets + 3*offsetindex, offsetpos);
3745                                 if (!normal)
3746                                 {
3747                                         // for light grid we'd better check visibility of the offset point
3748                                         cl.worldmodel->TraceLine(cl.worldmodel, NULL, NULL, &trace, pos, offsetpos, SUPERCONTENTS_VISBLOCKERMASK);
3749                                         if (trace.fraction < 1)
3750                                                 VectorLerp(pos, trace.fraction, offsetpos, offsetpos);
3751                                 }
3752                                 tests++;
3753                                 if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, offsetpos))
3754                                         hits++;
3755                         }
3756                         if (!hits)
3757                                 continue;
3758                         // scale intensity according to how many rays succeeded
3759                         // we know one test is valid, half of the rest will fail...
3760                         //if (normal && tests > 1)
3761                         //      intensity *= (tests - 1.0f) / tests;
3762                         intensity *= (float)hits / tests;
3763                 }
3764                 // scale down intensity to add to both ambient and diffuse
3765                 //intensity *= 0.5f;
3766                 VectorNormalize(relativepoint);
3767                 VectorScale(lightinfo->color, intensity, color);
3768                 VectorMA(sample    , 0.5f            , color, sample    );
3769                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3770                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3771                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3772                 // calculate a weighted average light direction as well
3773                 intensity *= VectorLength(color);
3774                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3775         }
3776 }
3777
3778 static void Mod_GenerateLightmaps_LightmapSample(const float *pos, const float *normal, unsigned char *lm_bgr, unsigned char *lm_dir)
3779 {
3780         float sample[5*3];
3781         float color[3];
3782         float dir[3];
3783         float f;
3784         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[0], mod_generatelightmaps_offsets[0][0]);
3785         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3786         VectorCopy(sample + 12, dir);
3787         VectorNormalize(dir);
3788         //VectorAdd(dir, normal, dir);
3789         //VectorNormalize(dir);
3790         f = DotProduct(dir, normal);
3791         f = max(0, f) * 255.0f;
3792         VectorScale(sample, f, color);
3793         //VectorCopy(normal, dir);
3794         VectorSet(dir, (dir[0]+1.0f)*127.5f, (dir[1]+1.0f)*127.5f, (dir[2]+1.0f)*127.5f);
3795         lm_bgr[0] = (unsigned char)bound(0.0f, color[2], 255.0f);
3796         lm_bgr[1] = (unsigned char)bound(0.0f, color[1], 255.0f);
3797         lm_bgr[2] = (unsigned char)bound(0.0f, color[0], 255.0f);
3798         lm_bgr[3] = 255;
3799         lm_dir[0] = (unsigned char)dir[2];
3800         lm_dir[1] = (unsigned char)dir[1];
3801         lm_dir[2] = (unsigned char)dir[0];
3802         lm_dir[3] = 255;
3803 }
3804
3805 static void Mod_GenerateLightmaps_VertexSample(const float *pos, const float *normal, float *vertex_color)
3806 {
3807         float sample[5*3];
3808         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[1], mod_generatelightmaps_offsets[1][0]);
3809         VectorCopy(sample, vertex_color);
3810 }
3811
3812 static void Mod_GenerateLightmaps_GridSample(const float *pos, q3dlightgrid_t *s)
3813 {
3814         float sample[5*3];
3815         float ambient[3];
3816         float diffuse[3];
3817         float dir[3];
3818         Mod_GenerateLightmaps_SamplePoint(pos, NULL, sample, mod_generatelightmaps_numoffsets[2], mod_generatelightmaps_offsets[2][0]);
3819         // calculate the direction we'll use to reduce the sample to a directional light source
3820         VectorCopy(sample + 12, dir);
3821         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3822         VectorNormalize(dir);
3823         // extract the diffuse color along the chosen direction and scale it
3824         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]) * 127.5f;
3825         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]) * 127.5f;
3826         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]) * 127.5f;
3827         // scale the ambient from 0-2 to 0-255 and subtract some of diffuse
3828         VectorScale(sample, 127.5f, ambient);
3829         VectorMA(ambient, -0.333f, diffuse, ambient);
3830         // encode to the grid format
3831         s->ambientrgb[0] = (unsigned char)bound(0.0f, ambient[0], 255.0f);
3832         s->ambientrgb[1] = (unsigned char)bound(0.0f, ambient[1], 255.0f);
3833         s->ambientrgb[2] = (unsigned char)bound(0.0f, ambient[2], 255.0f);
3834         s->diffusergb[0] = (unsigned char)bound(0.0f, diffuse[0], 255.0f);
3835         s->diffusergb[1] = (unsigned char)bound(0.0f, diffuse[1], 255.0f);
3836         s->diffusergb[2] = (unsigned char)bound(0.0f, diffuse[2], 255.0f);
3837         if (dir[2] >= 0.99f) {s->diffusepitch = 0;s->diffuseyaw = 0;}
3838         else if (dir[2] <= -0.99f) {s->diffusepitch = 128;s->diffuseyaw = 0;}
3839         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));}
3840 }
3841
3842 static void Mod_GenerateLightmaps_InitSampleOffsets(dp_model_t *model)
3843 {
3844         float radius[3];
3845         float temp[3];
3846         int i, j;
3847         memset(mod_generatelightmaps_offsets, 0, sizeof(mod_generatelightmaps_offsets));
3848         mod_generatelightmaps_numoffsets[0] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_lightmapsamples.integer);
3849         mod_generatelightmaps_numoffsets[1] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_vertexsamples.integer);
3850         mod_generatelightmaps_numoffsets[2] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_gridsamples.integer);
3851         radius[0] = mod_generatelightmaps_lightmapradius.value;
3852         radius[1] = mod_generatelightmaps_vertexradius.value;
3853         radius[2] = mod_generatelightmaps_gridradius.value;
3854         for (i = 0;i < 3;i++)
3855         {
3856                 for (j = 1;j < mod_generatelightmaps_numoffsets[i];j++)
3857                 {
3858                         VectorRandom(temp);
3859                         VectorScale(temp, radius[i], mod_generatelightmaps_offsets[i][j]);
3860                 }
3861         }
3862 }
3863
3864 static void Mod_GenerateLightmaps_DestroyLightmaps(dp_model_t *model)
3865 {
3866         msurface_t *surface;
3867         int surfaceindex;
3868         int i;
3869         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3870         {
3871                 surface = model->data_surfaces + surfaceindex;
3872                 surface->lightmaptexture = NULL;
3873                 surface->deluxemaptexture = NULL;
3874         }
3875         if (model->brushq3.data_lightmaps)
3876         {
3877                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3878                         if (model->brushq3.data_lightmaps[i])
3879                                 R_FreeTexture(model->brushq3.data_lightmaps[i]);
3880                 Mem_Free(model->brushq3.data_lightmaps);
3881                 model->brushq3.data_lightmaps = NULL;
3882         }
3883         if (model->brushq3.data_deluxemaps)
3884         {
3885                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3886                         if (model->brushq3.data_deluxemaps[i])
3887                                 R_FreeTexture(model->brushq3.data_deluxemaps[i]);
3888                 Mem_Free(model->brushq3.data_deluxemaps);
3889                 model->brushq3.data_deluxemaps = NULL;
3890         }
3891 }
3892
3893 static void Mod_GenerateLightmaps_UnweldTriangles(dp_model_t *model)
3894 {
3895         msurface_t *surface;
3896         int surfaceindex;
3897         int vertexindex;
3898         int outvertexindex;
3899         int i;
3900         const int *e;
3901         surfmesh_t oldsurfmesh;
3902         size_t size;
3903         unsigned char *data;
3904         oldsurfmesh = model->surfmesh;
3905         model->surfmesh.num_triangles = oldsurfmesh.num_triangles;
3906         model->surfmesh.num_vertices = oldsurfmesh.num_triangles * 3;
3907         size = 0;
3908         size += model->surfmesh.num_vertices * sizeof(float[3]);
3909         size += model->surfmesh.num_vertices * sizeof(float[3]);
3910         size += model->surfmesh.num_vertices * sizeof(float[3]);
3911         size += model->surfmesh.num_vertices * sizeof(float[3]);
3912         size += model->surfmesh.num_vertices * sizeof(float[2]);
3913         size += model->surfmesh.num_vertices * sizeof(float[2]);
3914         size += model->surfmesh.num_vertices * sizeof(float[4]);
3915         data = (unsigned char *)Mem_Alloc(model->mempool, size);
3916         model->surfmesh.data_vertex3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3917         model->surfmesh.data_normal3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3918         model->surfmesh.data_svector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3919         model->surfmesh.data_tvector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3920         model->surfmesh.data_texcoordtexture2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
3921         model->surfmesh.data_texcoordlightmap2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
3922         model->surfmesh.data_lightmapcolor4f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[4]);
3923         if (model->surfmesh.num_vertices > 65536)
3924                 model->surfmesh.data_element3s = NULL;
3925
3926         if (model->surfmesh.vertexmesh)
3927                 Mem_Free(model->surfmesh.vertexmesh);
3928         model->surfmesh.vertexmesh = NULL;
3929         if (model->surfmesh.vertex3fbuffer)
3930                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vertex3fbuffer);
3931         model->surfmesh.vertex3fbuffer = NULL;
3932         if (model->surfmesh.vertexmeshbuffer)
3933                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vertexmeshbuffer);
3934         model->surfmesh.vertexmeshbuffer = NULL;
3935         if (model->surfmesh.data_element3i_indexbuffer)
3936                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3i_indexbuffer);
3937         model->surfmesh.data_element3i_indexbuffer = NULL;
3938         if (model->surfmesh.data_element3s_indexbuffer)
3939                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3s_indexbuffer);
3940         model->surfmesh.data_element3s_indexbuffer = NULL;
3941         if (model->surfmesh.vbo_vertexbuffer)
3942                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vbo_vertexbuffer);
3943         model->surfmesh.vbo_vertexbuffer = 0;
3944
3945         // convert all triangles to unique vertex data
3946         outvertexindex = 0;
3947         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3948         {
3949                 surface = model->data_surfaces + surfaceindex;
3950                 surface->num_firstvertex = outvertexindex;
3951                 surface->num_vertices = surface->num_triangles*3;
3952                 e = oldsurfmesh.data_element3i + surface->num_firsttriangle*3;
3953                 for (i = 0;i < surface->num_triangles*3;i++)
3954                 {
3955                         vertexindex = e[i];
3956                         model->surfmesh.data_vertex3f[outvertexindex*3+0] = oldsurfmesh.data_vertex3f[vertexindex*3+0];
3957                         model->surfmesh.data_vertex3f[outvertexindex*3+1] = oldsurfmesh.data_vertex3f[vertexindex*3+1];
3958                         model->surfmesh.data_vertex3f[outvertexindex*3+2] = oldsurfmesh.data_vertex3f[vertexindex*3+2];
3959                         model->surfmesh.data_normal3f[outvertexindex*3+0] = oldsurfmesh.data_normal3f[vertexindex*3+0];
3960                         model->surfmesh.data_normal3f[outvertexindex*3+1] = oldsurfmesh.data_normal3f[vertexindex*3+1];
3961                         model->surfmesh.data_normal3f[outvertexindex*3+2] = oldsurfmesh.data_normal3f[vertexindex*3+2];
3962                         model->surfmesh.data_svector3f[outvertexindex*3+0] = oldsurfmesh.data_svector3f[vertexindex*3+0];
3963                         model->surfmesh.data_svector3f[outvertexindex*3+1] = oldsurfmesh.data_svector3f[vertexindex*3+1];
3964                         model->surfmesh.data_svector3f[outvertexindex*3+2] = oldsurfmesh.data_svector3f[vertexindex*3+2];
3965                         model->surfmesh.data_tvector3f[outvertexindex*3+0] = oldsurfmesh.data_tvector3f[vertexindex*3+0];
3966                         model->surfmesh.data_tvector3f[outvertexindex*3+1] = oldsurfmesh.data_tvector3f[vertexindex*3+1];
3967                         model->surfmesh.data_tvector3f[outvertexindex*3+2] = oldsurfmesh.data_tvector3f[vertexindex*3+2];
3968                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+0];
3969                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+1];
3970                         if (oldsurfmesh.data_texcoordlightmap2f)
3971                         {
3972                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+0];
3973                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+1];
3974                         }
3975                         if (oldsurfmesh.data_lightmapcolor4f)
3976                         {
3977                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+0] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+0];
3978                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+1] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+1];
3979                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+2] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+2];
3980                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+3] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+3];
3981                         }
3982                         else
3983                                 Vector4Set(model->surfmesh.data_lightmapcolor4f + 4*outvertexindex, 1, 1, 1, 1);
3984                         model->surfmesh.data_element3i[surface->num_firsttriangle*3+i] = outvertexindex;
3985                         outvertexindex++;
3986                 }
3987         }
3988         if (model->surfmesh.data_element3s)
3989                 for (i = 0;i < model->surfmesh.num_triangles*3;i++)
3990                         model->surfmesh.data_element3s[i] = model->surfmesh.data_element3i[i];
3991
3992         // find and update all submodels to use this new surfmesh data
3993         for (i = 0;i < model->brush.numsubmodels;i++)
3994                 model->brush.submodels[i]->surfmesh = model->surfmesh;
3995 }
3996
3997 static void Mod_GenerateLightmaps_CreateTriangleInformation(dp_model_t *model)
3998 {
3999         msurface_t *surface;
4000         int surfaceindex;
4001         int i;
4002         int axis;
4003         float normal[3];
4004         const int *e;
4005         lightmaptriangle_t *triangle;
4006         // generate lightmap triangle structs
4007         mod_generatelightmaps_lightmaptriangles = (lightmaptriangle_t *)Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4008         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4009         {
4010                 surface = model->data_surfaces + surfaceindex;
4011                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4012                 for (i = 0;i < surface->num_triangles;i++)
4013                 {
4014                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4015                         triangle->triangleindex = surface->num_firsttriangle+i;
4016                         triangle->surfaceindex = surfaceindex;
4017                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+0], triangle->vertex[0]);
4018                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+1], triangle->vertex[1]);
4019                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+2], triangle->vertex[2]);
4020                         // calculate bounds of triangle
4021                         triangle->mins[0] = min(triangle->vertex[0][0], min(triangle->vertex[1][0], triangle->vertex[2][0]));
4022                         triangle->mins[1] = min(triangle->vertex[0][1], min(triangle->vertex[1][1], triangle->vertex[2][1]));
4023                         triangle->mins[2] = min(triangle->vertex[0][2], min(triangle->vertex[1][2], triangle->vertex[2][2]));
4024                         triangle->maxs[0] = max(triangle->vertex[0][0], max(triangle->vertex[1][0], triangle->vertex[2][0]));
4025                         triangle->maxs[1] = max(triangle->vertex[0][1], max(triangle->vertex[1][1], triangle->vertex[2][1]));
4026                         triangle->maxs[2] = max(triangle->vertex[0][2], max(triangle->vertex[1][2], triangle->vertex[2][2]));
4027                         // pick an axial projection based on the triangle normal
4028                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], normal);
4029                         axis = 0;
4030                         if (fabs(normal[1]) > fabs(normal[axis]))
4031                                 axis = 1;
4032                         if (fabs(normal[2]) > fabs(normal[axis]))
4033                                 axis = 2;
4034                         triangle->axis = axis;
4035                 }
4036         }
4037 }
4038
4039 static void Mod_GenerateLightmaps_DestroyTriangleInformation(dp_model_t *model)
4040 {
4041         if (mod_generatelightmaps_lightmaptriangles)
4042                 Mem_Free(mod_generatelightmaps_lightmaptriangles);
4043         mod_generatelightmaps_lightmaptriangles = NULL;
4044 }
4045
4046 float lmaxis[3][3] = {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}};
4047
4048 static void Mod_GenerateLightmaps_CreateLightmaps(dp_model_t *model)
4049 {
4050         msurface_t *surface;
4051         int surfaceindex;
4052         int lightmapindex;
4053         int lightmapnumber;
4054         int i;
4055         int j;
4056         int k;
4057         int x;
4058         int y;
4059         int axis;
4060         int axis1;
4061         int axis2;
4062         int retry;
4063         int pixeloffset;
4064         float trianglenormal[3];
4065         float samplecenter[3];
4066         float samplenormal[3];
4067         float temp[3];
4068         float lmiscale[2];
4069         float slopex;
4070         float slopey;
4071         float slopebase;
4072         float lmscalepixels;
4073         float lmmins;
4074         float lmmaxs;
4075         float lm_basescalepixels;
4076         int lm_borderpixels;
4077         int lm_texturesize;
4078         //int lm_maxpixels;
4079         const int *e;
4080         lightmaptriangle_t *triangle;
4081         unsigned char *lightmappixels;
4082         unsigned char *deluxemappixels;
4083         mod_alloclightmap_state_t lmstate;
4084
4085         // generate lightmap projection information for all triangles
4086         if (model->texturepool == NULL)
4087                 model->texturepool = R_AllocTexturePool();
4088         lm_basescalepixels = 1.0f / max(0.0001f, mod_generatelightmaps_unitspersample.value);
4089         lm_borderpixels = mod_generatelightmaps_borderpixels.integer;
4090         lm_texturesize = bound(lm_borderpixels*2+1, 64, (int)vid.maxtexturesize_2d);
4091         //lm_maxpixels = lm_texturesize-(lm_borderpixels*2+1);
4092         Mod_AllocLightmap_Init(&lmstate, lm_texturesize, lm_texturesize);
4093         lightmapnumber = 0;
4094         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4095         {
4096                 surface = model->data_surfaces + surfaceindex;
4097                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4098                 lmscalepixels = lm_basescalepixels;
4099                 for (retry = 0;retry < 30;retry++)
4100                 {
4101                         // after a couple failed attempts, degrade quality to make it fit
4102                         if (retry > 1)
4103                                 lmscalepixels *= 0.5f;
4104                         for (i = 0;i < surface->num_triangles;i++)
4105                         {
4106                                 triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4107                                 triangle->lightmapindex = lightmapnumber;
4108                                 // calculate lightmap bounds in 3D pixel coordinates, limit size,
4109                                 // pick two planar axes for projection
4110                                 // lightmap coordinates here are in pixels
4111                                 // lightmap projections are snapped to pixel grid explicitly, such
4112                                 // that two neighboring triangles sharing an edge and projection
4113                                 // axis will have identical sampl espacing along their shared edge
4114                                 k = 0;
4115                                 for (j = 0;j < 3;j++)
4116                                 {
4117                                         if (j == triangle->axis)
4118                                                 continue;
4119                                         lmmins = floor(triangle->mins[j]*lmscalepixels)-lm_borderpixels;
4120                                         lmmaxs = floor(triangle->maxs[j]*lmscalepixels)+lm_borderpixels;
4121                                         triangle->lmsize[k] = (int)(lmmaxs-lmmins);
4122                                         triangle->lmbase[k] = lmmins/lmscalepixels;
4123                                         triangle->lmscale[k] = lmscalepixels;
4124                                         k++;
4125                                 }
4126                                 if (!Mod_AllocLightmap_Block(&lmstate, triangle->lmsize[0], triangle->lmsize[1], &triangle->lmoffset[0], &triangle->lmoffset[1]))
4127                                         break;
4128                         }
4129                         // if all fit in this texture, we're done with this surface
4130                         if (i == surface->num_triangles)
4131                                 break;
4132                         // if we haven't maxed out the lightmap size yet, we retry the
4133                         // entire surface batch...
4134                         if (lm_texturesize * 2 <= min(mod_generatelightmaps_texturesize.integer, (int)vid.maxtexturesize_2d))
4135                         {
4136                                 lm_texturesize *= 2;
4137                                 surfaceindex = -1;
4138                                 lightmapnumber = 0;
4139                                 Mod_AllocLightmap_Free(&lmstate);
4140                                 Mod_AllocLightmap_Init(&lmstate, lm_texturesize, lm_texturesize);
4141                                 break;
4142                         }
4143                         // if we have maxed out the lightmap size, and this triangle does
4144                         // not fit in the same texture as the rest of the surface, we have
4145                         // to retry the entire surface in a new texture (can only use one)
4146                         // with multiple retries, the lightmap quality degrades until it
4147                         // fits (or gives up)
4148                         if (surfaceindex > 0)
4149                                 lightmapnumber++;
4150                         Mod_AllocLightmap_Reset(&lmstate);
4151                 }
4152         }
4153         lightmapnumber++;
4154         Mod_AllocLightmap_Free(&lmstate);
4155
4156         // now put triangles together into lightmap textures, and do not allow
4157         // triangles of a surface to go into different textures (as that would
4158         // require rewriting the surface list)
4159         model->brushq3.deluxemapping_modelspace = true;
4160         model->brushq3.deluxemapping = true;
4161         model->brushq3.num_mergedlightmaps = lightmapnumber;
4162         model->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4163         model->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4164         lightmappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4165         deluxemappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4166         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4167         {
4168                 surface = model->data_surfaces + surfaceindex;
4169                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4170                 for (i = 0;i < surface->num_triangles;i++)
4171                 {
4172                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4173                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], trianglenormal);
4174                         VectorNormalize(trianglenormal);
4175                         VectorCopy(trianglenormal, samplenormal); // FIXME: this is supposed to be interpolated per pixel from vertices
4176                         axis = triangle->axis;
4177                         axis1 = axis == 0 ? 1 : 0;
4178                         axis2 = axis == 2 ? 1 : 2;
4179                         lmiscale[0] = 1.0f / triangle->lmscale[0];
4180                         lmiscale[1] = 1.0f / triangle->lmscale[1];
4181                         if (trianglenormal[axis] < 0)
4182                                 VectorNegate(trianglenormal, trianglenormal);
4183                         CrossProduct(lmaxis[axis2], trianglenormal, temp);slopex = temp[axis] / temp[axis1];
4184                         CrossProduct(lmaxis[axis1], trianglenormal, temp);slopey = temp[axis] / temp[axis2];
4185                         slopebase = triangle->vertex[0][axis] - triangle->vertex[0][axis1]*slopex - triangle->vertex[0][axis2]*slopey;
4186                         for (j = 0;j < 3;j++)
4187                         {
4188                                 float *t2f = model->surfmesh.data_texcoordlightmap2f + e[i*3+j]*2;
4189                                 t2f[0] = ((triangle->vertex[j][axis1] - triangle->lmbase[0]) * triangle->lmscale[0] + triangle->lmoffset[0]) / lm_texturesize;
4190                                 t2f[1] = ((triangle->vertex[j][axis2] - triangle->lmbase[1]) * triangle->lmscale[1] + triangle->lmoffset[1]) / lm_texturesize;
4191 #if 0
4192                                 samplecenter[axis1] = (t2f[0]*lm_texturesize-triangle->lmoffset[0])*lmiscale[0] + triangle->lmbase[0];
4193                                 samplecenter[axis2] = (t2f[1]*lm_texturesize-triangle->lmoffset[1])*lmiscale[1] + triangle->lmbase[1];
4194                                 samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4195                                 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]);
4196 #endif
4197                         }
4198
4199 #if 0
4200                         switch (axis)
4201                         {
4202                         default:
4203                         case 0:
4204                                 forward[0] = 0;
4205                                 forward[1] = 1.0f / triangle->lmscale[0];
4206                                 forward[2] = 0;
4207                                 left[0] = 0;
4208                                 left[1] = 0;
4209                                 left[2] = 1.0f / triangle->lmscale[1];
4210                                 up[0] = 1.0f;
4211                                 up[1] = 0;
4212                                 up[2] = 0;
4213                                 origin[0] = 0;
4214                                 origin[1] = triangle->lmbase[0];
4215                                 origin[2] = triangle->lmbase[1];
4216                                 break;
4217                         case 1:
4218                                 forward[0] = 1.0f / triangle->lmscale[0];
4219                                 forward[1] = 0;
4220                                 forward[2] = 0;
4221                                 left[0] = 0;
4222                                 left[1] = 0;
4223                                 left[2] = 1.0f / triangle->lmscale[1];
4224                                 up[0] = 0;
4225                                 up[1] = 1.0f;
4226                                 up[2] = 0;
4227                                 origin[0] = triangle->lmbase[0];
4228                                 origin[1] = 0;
4229                                 origin[2] = triangle->lmbase[1];
4230                                 break;
4231                         case 2:
4232                                 forward[0] = 1.0f / triangle->lmscale[0];
4233                                 forward[1] = 0;
4234                                 forward[2] = 0;
4235                                 left[0] = 0;
4236                                 left[1] = 1.0f / triangle->lmscale[1];
4237                                 left[2] = 0;
4238                                 up[0] = 0;
4239                                 up[1] = 0;
4240                                 up[2] = 1.0f;
4241                                 origin[0] = triangle->lmbase[0];
4242                                 origin[1] = triangle->lmbase[1];
4243                                 origin[2] = 0;
4244                                 break;
4245                         }
4246                         Matrix4x4_FromVectors(&backmatrix, forward, left, up, origin);
4247 #endif
4248 #define LM_DIST_EPSILON (1.0f / 32.0f)
4249                         for (y = 0;y < triangle->lmsize[1];y++)
4250                         {
4251                                 pixeloffset = ((triangle->lightmapindex * lm_texturesize + y + triangle->lmoffset[1]) * lm_texturesize + triangle->lmoffset[0]) * 4;
4252                                 for (x = 0;x < triangle->lmsize[0];x++, pixeloffset += 4)
4253                                 {
4254                                         samplecenter[axis1] = (x+0.5f)*lmiscale[0] + triangle->lmbase[0];
4255                                         samplecenter[axis2] = (y+0.5f)*lmiscale[1] + triangle->lmbase[1];
4256                                         samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4257                                         VectorMA(samplecenter, 0.125f, samplenormal, samplecenter);
4258                                         Mod_GenerateLightmaps_LightmapSample(samplecenter, samplenormal, lightmappixels + pixeloffset, deluxemappixels + pixeloffset);
4259                                 }
4260                         }
4261                 }
4262         }
4263
4264         for (lightmapindex = 0;lightmapindex < model->brushq3.num_mergedlightmaps;lightmapindex++)
4265         {
4266                 model->brushq3.data_lightmaps[lightmapindex] = R_LoadTexture2D(model->texturepool, va("lightmap%i", lightmapindex), lm_texturesize, lm_texturesize, lightmappixels + lightmapindex * lm_texturesize * lm_texturesize * 4, TEXTYPE_BGRA, TEXF_FORCELINEAR, -1, NULL);
4267                 model->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(model->texturepool, va("deluxemap%i", lightmapindex), lm_texturesize, lm_texturesize, deluxemappixels + lightmapindex * lm_texturesize * lm_texturesize * 4, TEXTYPE_BGRA, TEXF_FORCELINEAR, -1, NULL);
4268         }
4269
4270         if (lightmappixels)
4271                 Mem_Free(lightmappixels);
4272         if (deluxemappixels)
4273                 Mem_Free(deluxemappixels);
4274
4275         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4276         {
4277                 surface = model->data_surfaces + surfaceindex;
4278                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4279                 if (!surface->num_triangles)
4280                         continue;
4281                 lightmapindex = mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle].lightmapindex;
4282                 surface->lightmaptexture = model->brushq3.data_lightmaps[lightmapindex];
4283                 surface->deluxemaptexture = model->brushq3.data_deluxemaps[lightmapindex];
4284                 surface->lightmapinfo = NULL;
4285         }
4286
4287         model->brush.LightPoint = Mod_GenerateLightmaps_LightPoint;
4288         model->brushq1.lightdata = NULL;
4289         model->brushq1.lightmapupdateflags = NULL;
4290         model->brushq1.firstrender = false;
4291         model->brushq1.num_lightstyles = 0;
4292         model->brushq1.data_lightstyleinfo = NULL;
4293         for (i = 0;i < model->brush.numsubmodels;i++)
4294         {
4295                 model->brush.submodels[i]->brushq1.lightmapupdateflags = NULL;
4296                 model->brush.submodels[i]->brushq1.firstrender = false;
4297                 model->brush.submodels[i]->brushq1.num_lightstyles = 0;
4298                 model->brush.submodels[i]->brushq1.data_lightstyleinfo = NULL;
4299         }
4300 }
4301
4302 static void Mod_GenerateLightmaps_UpdateVertexColors(dp_model_t *model)
4303 {
4304         int i;
4305         for (i = 0;i < model->surfmesh.num_vertices;i++)
4306                 Mod_GenerateLightmaps_VertexSample(model->surfmesh.data_vertex3f + 3*i, model->surfmesh.data_normal3f + 3*i, model->surfmesh.data_lightmapcolor4f + 4*i);
4307 }
4308
4309 static void Mod_GenerateLightmaps_UpdateLightGrid(dp_model_t *model)
4310 {
4311         int x;
4312         int y;
4313         int z;
4314         int index = 0;
4315         float pos[3];
4316         for (z = 0;z < model->brushq3.num_lightgrid_isize[2];z++)
4317         {
4318                 pos[2] = (model->brushq3.num_lightgrid_imins[2] + z + 0.5f) * model->brushq3.num_lightgrid_cellsize[2];
4319                 for (y = 0;y < model->brushq3.num_lightgrid_isize[1];y++)
4320                 {
4321                         pos[1] = (model->brushq3.num_lightgrid_imins[1] + y + 0.5f) * model->brushq3.num_lightgrid_cellsize[1];
4322                         for (x = 0;x < model->brushq3.num_lightgrid_isize[0];x++, index++)
4323                         {
4324                                 pos[0] = (model->brushq3.num_lightgrid_imins[0] + x + 0.5f) * model->brushq3.num_lightgrid_cellsize[0];
4325                                 Mod_GenerateLightmaps_GridSample(pos, model->brushq3.data_lightgrid + index);
4326                         }
4327                 }
4328         }
4329 }
4330
4331 extern cvar_t mod_q3bsp_nolightmaps;
4332 static void Mod_GenerateLightmaps(dp_model_t *model)
4333 {
4334         //lightmaptriangle_t *lightmaptriangles = Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4335         dp_model_t *oldloadmodel = loadmodel;
4336         loadmodel = model;
4337
4338         Mod_GenerateLightmaps_InitSampleOffsets(model);
4339         Mod_GenerateLightmaps_DestroyLightmaps(model);
4340         Mod_GenerateLightmaps_UnweldTriangles(model);
4341         Mod_GenerateLightmaps_CreateTriangleInformation(model);
4342         Mod_GenerateLightmaps_CreateLights(model);
4343         if(!mod_q3bsp_nolightmaps.integer)
4344                 Mod_GenerateLightmaps_CreateLightmaps(model);
4345         Mod_GenerateLightmaps_UpdateVertexColors(model);
4346         Mod_GenerateLightmaps_UpdateLightGrid(model);
4347         Mod_GenerateLightmaps_DestroyLights(model);
4348         Mod_GenerateLightmaps_DestroyTriangleInformation(model);
4349
4350         loadmodel = oldloadmodel;
4351 }
4352
4353 static void Mod_GenerateLightmaps_f(void)
4354 {
4355         if (Cmd_Argc() != 1)
4356         {
4357                 Con_Printf("usage: mod_generatelightmaps\n");
4358                 return;
4359         }
4360         if (!cl.worldmodel)
4361         {
4362                 Con_Printf("no worldmodel loaded\n");
4363                 return;
4364         }
4365         Mod_GenerateLightmaps(cl.worldmodel);
4366 }