model_shared.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // models.c -- model loading and caching
  21
  22 // models are the only shared resource between a client and server running
  23 // on the same machine.
  24
  25 #include "quakedef.h"
  26 #include "image.h"
  27 #include "r_shadow.h"
  28 #include "polygon.h"
  29
  30 cvar_t r_mipskins = {CVAR_SAVE, "r_mipskins", "0", "mipmaps model skins so they render faster in the distance and do not display noise artifacts, can cause discoloration of skins if they contain undesirable border colors"};
  31 cvar_t r_mipnormalmaps = {CVAR_SAVE, "r_mipnormalmaps", "1", "mipmaps normalmaps (turning it off looks sharper but may have aliasing)"};
  32 cvar_t mod_generatelightmaps_unitspersample = {CVAR_SAVE, "mod_generatelightmaps_unitspersample", "8", "lightmap resolution"};
  33 cvar_t mod_generatelightmaps_borderpixels = {CVAR_SAVE, "mod_generatelightmaps_borderpixels", "2", "extra space around polygons to prevent sampling artifacts"};
  34 cvar_t mod_generatelightmaps_texturesize = {CVAR_SAVE, "mod_generatelightmaps_texturesize", "1024", "size of lightmap textures"};
  35 cvar_t mod_generatelightmaps_lightmapsamples = {CVAR_SAVE, "mod_generatelightmaps_lightmapsamples", "16", "number of shadow tests done per lightmap pixel"};
  36 cvar_t mod_generatelightmaps_vertexsamples = {CVAR_SAVE, "mod_generatelightmaps_vertexsamples", "16", "number of shadow tests done per vertex"};
  37 cvar_t mod_generatelightmaps_gridsamples = {CVAR_SAVE, "mod_generatelightmaps_gridsamples", "64", "number of shadow tests done per lightgrid cell"};
  38 cvar_t mod_generatelightmaps_lightmapradius = {CVAR_SAVE, "mod_generatelightmaps_lightmapradius", "16", "sampling area around each lightmap pixel"};
  39 cvar_t mod_generatelightmaps_vertexradius = {CVAR_SAVE, "mod_generatelightmaps_vertexradius", "16", "sampling area around each vertex"};
  40 cvar_t mod_generatelightmaps_gridradius = {CVAR_SAVE, "mod_generatelightmaps_gridradius", "64", "sampling area around each lightgrid cell center"};
  41
  42 dp_model_t *loadmodel;
  43
  44 static mempool_t *mod_mempool;
  45 static memexpandablearray_t models;
  46
  47 static mempool_t* q3shaders_mem;
  48 typedef struct q3shader_hash_entry_s
  49 {
  50   q3shaderinfo_t shader;
  51   struct q3shader_hash_entry_s* chain;
  52 } q3shader_hash_entry_t;
  53 #define Q3SHADER_HASH_SIZE  1021
  54 typedef struct q3shader_data_s
  55 {
  56   memexpandablearray_t hash_entries;
  57   q3shader_hash_entry_t hash[Q3SHADER_HASH_SIZE];
  58   memexpandablearray_t char_ptrs;
  59 } q3shader_data_t;
  60 static q3shader_data_t* q3shader_data;
  61
  62 static void mod_start(void)
  63 {
  64         int i, count;
  65         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  66         dp_model_t *mod;
  67
  68         SCR_PushLoadingScreen(false, "Loading models", 1.0);
  69         count = 0;
  70         for (i = 0;i < nummodels;i++)
  71                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  72                         if (mod->used)
  73                                 ++count;
  74         for (i = 0;i < nummodels;i++)
  75                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  76                         if (mod->used)
  77                         {
  78                                 SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
  79                                 Mod_LoadModel(mod, true, false);
  80                                 SCR_PopLoadingScreen(false);
  81                         }
  82         SCR_PopLoadingScreen(false);
  83 }
  84
  85 static void mod_shutdown(void)
  86 {
  87         int i;
  88         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  89         dp_model_t *mod;
  90
  91         for (i = 0;i < nummodels;i++)
  92                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && (mod->loaded || mod->mempool))
  93                         Mod_UnloadModel(mod);
  94
  95         Mod_FreeQ3Shaders();
  96         Mod_Skeletal_FreeBuffers();
  97 }
  98
  99 static void mod_newmap(void)
 100 {
 101         msurface_t *surface;
 102         int i, j, k, surfacenum, ssize, tsize;
 103         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 104         dp_model_t *mod;
 105
 106         for (i = 0;i < nummodels;i++)
 107         {
 108                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool)
 109                 {
 110                         for (j = 0;j < mod->num_textures && mod->data_textures;j++)
 111                         {
 112                                 for (k = 0;k < mod->data_textures[j].numskinframes;k++)
 113                                         R_SkinFrame_MarkUsed(mod->data_textures[j].skinframes[k]);
 114                                 for (k = 0;k < mod->data_textures[j].backgroundnumskinframes;k++)
 115                                         R_SkinFrame_MarkUsed(mod->data_textures[j].backgroundskinframes[k]);
 116                         }
 117                         if (mod->brush.solidskyskinframe)
 118                                 R_SkinFrame_MarkUsed(mod->brush.solidskyskinframe);
 119                         if (mod->brush.alphaskyskinframe)
 120                                 R_SkinFrame_MarkUsed(mod->brush.alphaskyskinframe);
 121                 }
 122         }
 123
 124         if (!cl_stainmaps_clearonload.integer)
 125                 return;
 126
 127         for (i = 0;i < nummodels;i++)
 128         {
 129                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool && mod->data_surfaces)
 130                 {
 131                         for (surfacenum = 0, surface = mod->data_surfaces;surfacenum < mod->num_surfaces;surfacenum++, surface++)
 132                         {
 133                                 if (surface->lightmapinfo && surface->lightmapinfo->stainsamples)
 134                                 {
 135                                         ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
 136                                         tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
 137                                         memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
 138                                         mod->brushq1.lightmapupdateflags[surfacenum] = true;
 139                                 }
 140                         }
 141                 }
 142         }
 143 }
 144
 145 /*
 146 ===============
 147 Mod_Init
 148 ===============
 149 */
 150 static void Mod_Print(void);
 151 static void Mod_Precache (void);
 152 static void Mod_Decompile_f(void);
 153 static void Mod_GenerateLightmaps_f(void);
 154 void Mod_Init (void)
 155 {
 156         mod_mempool = Mem_AllocPool("modelinfo", 0, NULL);
 157         Mem_ExpandableArray_NewArray(&models, mod_mempool, sizeof(dp_model_t), 16);
 158
 159         Mod_BrushInit();
 160         Mod_AliasInit();
 161         Mod_SpriteInit();
 162
 163         Cvar_RegisterVariable(&r_mipskins);
 164         Cvar_RegisterVariable(&r_mipnormalmaps);
 165         Cvar_RegisterVariable(&mod_generatelightmaps_unitspersample);
 166         Cvar_RegisterVariable(&mod_generatelightmaps_borderpixels);
 167         Cvar_RegisterVariable(&mod_generatelightmaps_texturesize);
 168
 169         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapsamples);
 170         Cvar_RegisterVariable(&mod_generatelightmaps_vertexsamples);
 171         Cvar_RegisterVariable(&mod_generatelightmaps_gridsamples);
 172         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapradius);
 173         Cvar_RegisterVariable(&mod_generatelightmaps_vertexradius);
 174         Cvar_RegisterVariable(&mod_generatelightmaps_gridradius);
 175
 176         Cmd_AddCommand ("modellist", Mod_Print, "prints a list of loaded models");
 177         Cmd_AddCommand ("modelprecache", Mod_Precache, "load a model");
 178         Cmd_AddCommand ("modeldecompile", Mod_Decompile_f, "exports a model in several formats for editing purposes");
 179         Cmd_AddCommand ("mod_generatelightmaps", Mod_GenerateLightmaps_f, "rebuilds lighting on current worldmodel");
 180 }
 181
 182 void Mod_RenderInit(void)
 183 {
 184         R_RegisterModule("Models", mod_start, mod_shutdown, mod_newmap, NULL, NULL);
 185 }
 186
 187 void Mod_UnloadModel (dp_model_t *mod)
 188 {
 189         char name[MAX_QPATH];
 190         qboolean used;
 191         dp_model_t *parentmodel;
 192
 193         if (developer_loading.integer)
 194                 Con_Printf("unloading model %s\n", mod->name);
 195
 196         strlcpy(name, mod->name, sizeof(name));
 197         parentmodel = mod->brush.parentmodel;
 198         used = mod->used;
 199         if (mod->mempool)
 200         {
 201                 if (mod->surfmesh.vertexpositionbuffer)
 202                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.vertexpositionbuffer);
 203                 mod->surfmesh.vertexpositionbuffer = NULL;
 204                 if (mod->surfmesh.vertexmeshbuffer)
 205                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.vertexmeshbuffer);
 206                 mod->surfmesh.vertexmeshbuffer = NULL;
 207                 if (mod->surfmesh.data_element3i_indexbuffer)
 208                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3i_indexbuffer);
 209                 mod->surfmesh.data_element3i_indexbuffer = NULL;
 210                 if (mod->surfmesh.data_element3s_indexbuffer)
 211                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3s_indexbuffer);
 212                 mod->surfmesh.data_element3s_indexbuffer = NULL;
 213                 if (mod->surfmesh.vbo_vertexbuffer)
 214                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.vbo_vertexbuffer);
 215                 mod->surfmesh.vbo_vertexbuffer = NULL;
 216         }
 217         // free textures/memory attached to the model
 218         R_FreeTexturePool(&mod->texturepool);
 219         Mem_FreePool(&mod->mempool);
 220         // clear the struct to make it available
 221         memset(mod, 0, sizeof(dp_model_t));
 222         // restore the fields we want to preserve
 223         strlcpy(mod->name, name, sizeof(mod->name));
 224         mod->brush.parentmodel = parentmodel;
 225         mod->used = used;
 226         mod->loaded = false;
 227 }
 228
 229 void R_Model_Null_Draw(entity_render_t *ent)
 230 {
 231         return;
 232 }
 233
 234
 235 typedef void (*mod_framegroupify_parsegroups_t) (unsigned int i, int start, int len, float fps, qboolean loop, void *pass);
 236
 237 int Mod_FrameGroupify_ParseGroups(const char *buf, mod_framegroupify_parsegroups_t cb, void *pass)
 238 {
 239         const char *bufptr;
 240         int start, len;
 241         float fps;
 242         unsigned int i;
 243         qboolean loop;
 244
 245         bufptr = buf;
 246         i = 0;
 247         for(;;)
 248         {
 249                 // an anim scene!
 250                 if (!COM_ParseToken_Simple(&bufptr, true, false))
 251                         break;
 252                 if (!strcmp(com_token, "\n"))
 253                         continue; // empty line
 254                 start = atoi(com_token);
 255                 if (!COM_ParseToken_Simple(&bufptr, true, false))
 256                         break;
 257                 if (!strcmp(com_token, "\n"))
 258                 {
 259                         Con_Printf("framegroups file: missing number of frames\n");
 260                         continue;
 261                 }
 262                 len = atoi(com_token);
 263                 if (!COM_ParseToken_Simple(&bufptr, true, false))
 264                         break;
 265                 // we default to looping as it's usually wanted, so to NOT loop you append a 0
 266                 if (strcmp(com_token, "\n"))
 267                 {
 268                         fps = atof(com_token);
 269                         if (!COM_ParseToken_Simple(&bufptr, true, false))
 270                                 break;
 271                         if (strcmp(com_token, "\n"))
 272                                 loop = atoi(com_token) != 0;
 273                         else
 274                                 loop = true;
 275                 }
 276                 else
 277                 {
 278                         fps = 20;
 279                         loop = true;
 280                 }
 281
 282                 if(cb)
 283                         cb(i, start, len, fps, loop, pass);
 284                 ++i;
 285         }
 286
 287         return i;
 288 }
 289
 290 void Mod_FrameGroupify_ParseGroups_Count (unsigned int i, int start, int len, float fps, qboolean loop, void *pass)
 291 {
 292         unsigned int *cnt = (unsigned int *) pass;
 293         ++*cnt;
 294 }
 295
 296 void Mod_FrameGroupify_ParseGroups_Store (unsigned int i, int start, int len, float fps, qboolean loop, void *pass)
 297 {
 298         dp_model_t *mod = (dp_model_t *) pass;
 299         animscene_t *anim = &mod->animscenes[i];
 300         dpsnprintf(anim->name, sizeof(anim[i].name), "groupified_%d_anim", i);
 301         anim->firstframe = bound(0, start, mod->num_poses - 1);
 302         anim->framecount = bound(1, len, mod->num_poses - anim->firstframe);
 303         anim->framerate = max(1, fps);
 304         anim->loop = !!loop;
 305         //Con_Printf("frame group %d is %d %d %f %d\n", i, start, len, fps, loop);
 306 }
 307
 308 void Mod_FrameGroupify(dp_model_t *mod, const char *buf)
 309 {
 310         unsigned int cnt;
 311
 312         // 0. count
 313         cnt = Mod_FrameGroupify_ParseGroups(buf, NULL, NULL);
 314         if(!cnt)
 315         {
 316                 Con_Printf("no scene found in framegroups file, aborting\n");
 317                 return;
 318         }
 319         mod->numframes = cnt;
 320
 321         // 1. reallocate
 322         // (we do not free the previous animscenes, but model unloading will free the pool owning them, so it's okay)
 323         mod->animscenes = (animscene_t *) Mem_Alloc(mod->mempool, sizeof(animscene_t) * mod->numframes);
 324
 325         // 2. parse
 326         Mod_FrameGroupify_ParseGroups(buf, Mod_FrameGroupify_ParseGroups_Store, mod);
 327 }
 328
 329 void Mod_FindPotentialDeforms(dp_model_t *mod)
 330 {
 331         int i, j;
 332         texture_t *texture;
 333         mod->wantnormals = false;
 334         mod->wanttangents = false;
 335         for (i = 0;i < mod->num_textures;i++)
 336         {
 337                 texture = mod->data_textures + i;
 338                 if (texture->tcgen.tcgen == Q3TCGEN_ENVIRONMENT)
 339                         mod->wantnormals = true;
 340                 for (j = 0;j < Q3MAXDEFORMS;j++)
 341                 {
 342                         if (texture->deforms[j].deform == Q3DEFORM_AUTOSPRITE)
 343                         {
 344                                 mod->wanttangents = true;
 345                                 mod->wantnormals = true;
 346                                 break;
 347                         }
 348                         if (texture->deforms[j].deform != Q3DEFORM_NONE)
 349                                 mod->wantnormals = true;
 350                 }
 351         }
 352 }
 353
 354 /*
 355 ==================
 356 Mod_LoadModel
 357
 358 Loads a model
 359 ==================
 360 */
 361 dp_model_t *Mod_LoadModel(dp_model_t *mod, qboolean crash, qboolean checkdisk)
 362 {
 363         int num;
 364         unsigned int crc;
 365         void *buf;
 366         fs_offset_t filesize = 0;
 367
 368         mod->used = true;
 369
 370         if (mod->name[0] == '*') // submodel
 371                 return mod;
 372
 373         if (!strcmp(mod->name, "null"))
 374         {
 375                 if(mod->loaded)
 376                         return mod;
 377
 378                 if (mod->loaded || mod->mempool)
 379                         Mod_UnloadModel(mod);
 380
 381                 if (developer_loading.integer)
 382                         Con_Printf("loading model %s\n", mod->name);
 383
 384                 mod->used = true;
 385                 mod->crc = (unsigned int)-1;
 386                 mod->loaded = false;
 387
 388                 VectorClear(mod->normalmins);
 389                 VectorClear(mod->normalmaxs);
 390                 VectorClear(mod->yawmins);
 391                 VectorClear(mod->yawmaxs);
 392                 VectorClear(mod->rotatedmins);
 393                 VectorClear(mod->rotatedmaxs);
 394
 395                 mod->modeldatatypestring = "null";
 396                 mod->type = mod_null;
 397                 mod->Draw = R_Model_Null_Draw;
 398                 mod->numframes = 2;
 399                 mod->numskins = 1;
 400
 401                 // no fatal errors occurred, so this model is ready to use.
 402                 mod->loaded = true;
 403
 404                 return mod;
 405         }
 406
 407         crc = 0;
 408         buf = NULL;
 409
 410         // even if the model is loaded it still may need reloading...
 411
 412         // if it is not loaded or checkdisk is true we need to calculate the crc
 413         if (!mod->loaded || checkdisk)
 414         {
 415                 if (checkdisk && mod->loaded)
 416                         Con_DPrintf("checking model %s\n", mod->name);
 417                 buf = FS_LoadFile (mod->name, tempmempool, false, &filesize);
 418                 if (buf)
 419                 {
 420                         crc = CRC_Block((unsigned char *)buf, filesize);
 421                         // we need to reload the model if the crc does not match
 422                         if (mod->crc != crc)
 423                                 mod->loaded = false;
 424                 }
 425         }
 426
 427         // if the model is already loaded and checks passed, just return
 428         if (mod->loaded)
 429         {
 430                 if (buf)
 431                         Mem_Free(buf);
 432                 return mod;
 433         }
 434
 435         if (developer_loading.integer)
 436                 Con_Printf("loading model %s\n", mod->name);
 437
 438         SCR_PushLoadingScreen(true, mod->name, 1);
 439
 440         // LordHavoc: unload the existing model in this slot (if there is one)
 441         if (mod->loaded || mod->mempool)
 442                 Mod_UnloadModel(mod);
 443
 444         // load the model
 445         mod->used = true;
 446         mod->crc = crc;
 447         // errors can prevent the corresponding mod->loaded = true;
 448         mod->loaded = false;
 449
 450         // default model radius and bounding box (mainly for missing models)
 451         mod->radius = 16;
 452         VectorSet(mod->normalmins, -mod->radius, -mod->radius, -mod->radius);
 453         VectorSet(mod->normalmaxs, mod->radius, mod->radius, mod->radius);
 454         VectorSet(mod->yawmins, -mod->radius, -mod->radius, -mod->radius);
 455         VectorSet(mod->yawmaxs, mod->radius, mod->radius, mod->radius);
 456         VectorSet(mod->rotatedmins, -mod->radius, -mod->radius, -mod->radius);
 457         VectorSet(mod->rotatedmaxs, mod->radius, mod->radius, mod->radius);
 458
 459         if (!q3shaders_mem)
 460         {
 461                 // load q3 shaders for the first time, or after a level change
 462                 Mod_LoadQ3Shaders();
 463         }
 464
 465         if (buf)
 466         {
 467                 char *bufend = (char *)buf + filesize;
 468
 469                 // all models use memory, so allocate a memory pool
 470                 mod->mempool = Mem_AllocPool(mod->name, 0, NULL);
 471
 472                 num = LittleLong(*((int *)buf));
 473                 // call the apropriate loader
 474                 loadmodel = mod;
 475                 if (!strcasecmp(FS_FileExtension(mod->name), "obj")) Mod_OBJ_Load(mod, buf, bufend);
 476                 else if (!memcmp(buf, "IDPO", 4)) Mod_IDP0_Load(mod, buf, bufend);
 477                 else if (!memcmp(buf, "IDP2", 4)) Mod_IDP2_Load(mod, buf, bufend);
 478                 else if (!memcmp(buf, "IDP3", 4)) Mod_IDP3_Load(mod, buf, bufend);
 479                 else if (!memcmp(buf, "IDSP", 4)) Mod_IDSP_Load(mod, buf, bufend);
 480                 else if (!memcmp(buf, "IDS2", 4)) Mod_IDS2_Load(mod, buf, bufend);
 481                 else if (!memcmp(buf, "IBSP", 4)) Mod_IBSP_Load(mod, buf, bufend);
 482                 else if (!memcmp(buf, "ZYMOTICMODEL", 12)) Mod_ZYMOTICMODEL_Load(mod, buf, bufend);
 483                 else if (!memcmp(buf, "DARKPLACESMODEL", 16)) Mod_DARKPLACESMODEL_Load(mod, buf, bufend);
 484                 else if (!memcmp(buf, "ACTRHEAD", 8)) Mod_PSKMODEL_Load(mod, buf, bufend);
 485                 else if (!memcmp(buf, "INTERQUAKEMODEL", 16)) Mod_INTERQUAKEMODEL_Load(mod, buf, bufend);
 486                 else if (strlen(mod->name) >= 4 && !strcmp(mod->name + strlen(mod->name) - 4, ".map")) Mod_MAP_Load(mod, buf, bufend);
 487                 else if (num == BSPVERSION || num == 30) Mod_Q1BSP_Load(mod, buf, bufend);
 488                 else Con_Printf("Mod_LoadModel: model \"%s\" is of unknown/unsupported type\n", mod->name);
 489                 Mem_Free(buf);
 490
 491                 Mod_FindPotentialDeforms(mod);
 492
 493                 buf = FS_LoadFile (va("%s.framegroups", mod->name), tempmempool, false, &filesize);
 494                 if(buf)
 495                 {
 496                         Mod_FrameGroupify(mod, (const char *)buf);
 497                         Mem_Free(buf);
 498                 }
 499
 500                 Mod_BuildVBOs();
 501         }
 502         else if (crash)
 503         {
 504                 // LordHavoc: Sys_Error was *ANNOYING*
 505                 Con_Printf ("Mod_LoadModel: %s not found\n", mod->name);
 506         }
 507
 508         // no fatal errors occurred, so this model is ready to use.
 509         mod->loaded = true;
 510
 511         SCR_PopLoadingScreen(false);
 512
 513         return mod;
 514 }
 515
 516 void Mod_ClearUsed(void)
 517 {
 518         int i;
 519         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 520         dp_model_t *mod;
 521         for (i = 0;i < nummodels;i++)
 522                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0])
 523                         mod->used = false;
 524 }
 525
 526 void Mod_PurgeUnused(void)
 527 {
 528         int i;
 529         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 530         dp_model_t *mod;
 531         for (i = 0;i < nummodels;i++)
 532         {
 533                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !mod->used)
 534                 {
 535                         Mod_UnloadModel(mod);
 536                         Mem_ExpandableArray_FreeRecord(&models, mod);
 537                 }
 538         }
 539 }
 540
 541 /*
 542 ==================
 543 Mod_FindName
 544
 545 ==================
 546 */
 547 dp_model_t *Mod_FindName(const char *name, const char *parentname)
 548 {
 549         int i;
 550         int nummodels;
 551         dp_model_t *mod;
 552
 553         if (!parentname)
 554                 parentname = "";
 555
 556         // if we're not dedicatd, the renderer calls will crash without video
 557         Host_StartVideo();
 558
 559         nummodels = Mem_ExpandableArray_IndexRange(&models);
 560
 561         if (!name[0])
 562                 Host_Error ("Mod_ForName: NULL name");
 563
 564         // search the currently loaded models
 565         for (i = 0;i < nummodels;i++)
 566         {
 567                 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))))
 568                 {
 569                         mod->used = true;
 570                         return mod;
 571                 }
 572         }
 573
 574         // no match found, create a new one
 575         mod = (dp_model_t *) Mem_ExpandableArray_AllocRecord(&models);
 576         strlcpy(mod->name, name, sizeof(mod->name));
 577         if (parentname[0])
 578                 mod->brush.parentmodel = Mod_FindName(parentname, NULL);
 579         else
 580                 mod->brush.parentmodel = NULL;
 581         mod->loaded = false;
 582         mod->used = true;
 583         return mod;
 584 }
 585
 586 /*
 587 ==================
 588 Mod_ForName
 589
 590 Loads in a model for the given name
 591 ==================
 592 */
 593 dp_model_t *Mod_ForName(const char *name, qboolean crash, qboolean checkdisk, const char *parentname)
 594 {
 595         dp_model_t *model;
 596         model = Mod_FindName(name, parentname);
 597         if (!model->loaded || checkdisk)
 598                 Mod_LoadModel(model, crash, checkdisk);
 599         return model;
 600 }
 601
 602 /*
 603 ==================
 604 Mod_Reload
 605
 606 Reloads all models if they have changed
 607 ==================
 608 */
 609 void Mod_Reload(void)
 610 {
 611         int i, count;
 612         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 613         dp_model_t *mod;
 614
 615         SCR_PushLoadingScreen(false, "Reloading models", 1.0);
 616         count = 0;
 617         for (i = 0;i < nummodels;i++)
 618                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 619                         ++count;
 620         for (i = 0;i < nummodels;i++)
 621                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 622                 {
 623                         SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
 624                         Mod_LoadModel(mod, true, true);
 625                         SCR_PopLoadingScreen(false);
 626                 }
 627         SCR_PopLoadingScreen(false);
 628 }
 629
 630 unsigned char *mod_base;
 631
 632
 633 //=============================================================================
 634
 635 /*
 636 ================
 637 Mod_Print
 638 ================
 639 */
 640 static void Mod_Print(void)
 641 {
 642         int i;
 643         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 644         dp_model_t *mod;
 645
 646         Con_Print("Loaded models:\n");
 647         for (i = 0;i < nummodels;i++)
 648         {
 649                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
 650                 {
 651                         if (mod->brush.numsubmodels)
 652                                 Con_Printf("%4iK %s (%i submodels)\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name, mod->brush.numsubmodels);
 653                         else
 654                                 Con_Printf("%4iK %s\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name);
 655                 }
 656         }
 657 }
 658
 659 /*
 660 ================
 661 Mod_Precache
 662 ================
 663 */
 664 static void Mod_Precache(void)
 665 {
 666         if (Cmd_Argc() == 2)
 667                 Mod_ForName(Cmd_Argv(1), false, true, Cmd_Argv(1)[0] == '*' ? cl.model_name[1] : NULL);
 668         else
 669                 Con_Print("usage: modelprecache <filename>\n");
 670 }
 671
 672 int Mod_BuildVertexRemapTableFromElements(int numelements, const int *elements, int numvertices, int *remapvertices)
 673 {
 674         int i, count;
 675         unsigned char *used;
 676         used = (unsigned char *)Mem_Alloc(tempmempool, numvertices);
 677         memset(used, 0, numvertices);
 678         for (i = 0;i < numelements;i++)
 679                 used[elements[i]] = 1;
 680         for (i = 0, count = 0;i < numvertices;i++)
 681                 remapvertices[i] = used[i] ? count++ : -1;
 682         Mem_Free(used);
 683         return count;
 684 }
 685
 686 #if 1
 687 // fast way, using an edge hash
 688 #define TRIANGLEEDGEHASH 8192
 689 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 690 {
 691         int i, j, p, e1, e2, *n, hashindex, count, match;
 692         const int *e;
 693         typedef struct edgehashentry_s
 694         {
 695                 struct edgehashentry_s *next;
 696                 int triangle;
 697                 int element[2];
 698         }
 699         edgehashentry_t;
 700         static edgehashentry_t **edgehash;
 701         edgehashentry_t *edgehashentries, *hash;
 702         if (!numtriangles)
 703                 return;
 704         edgehash = (edgehashentry_t **)Mem_Alloc(tempmempool, TRIANGLEEDGEHASH * sizeof(*edgehash));
 705         // if there are too many triangles for the stack array, allocate larger buffer
 706         edgehashentries = (edgehashentry_t *)Mem_Alloc(tempmempool, numtriangles * 3 * sizeof(edgehashentry_t));
 707         // find neighboring triangles
 708         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 709         {
 710                 for (j = 0, p = 2;j < 3;p = j, j++)
 711                 {
 712                         e1 = e[p];
 713                         e2 = e[j];
 714                         // this hash index works for both forward and backward edges
 715                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 716                         hash = edgehashentries + i * 3 + j;
 717                         hash->next = edgehash[hashindex];
 718                         edgehash[hashindex] = hash;
 719                         hash->triangle = i;
 720                         hash->element[0] = e1;
 721                         hash->element[1] = e2;
 722                 }
 723         }
 724         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 725         {
 726                 for (j = 0, p = 2;j < 3;p = j, j++)
 727                 {
 728                         e1 = e[p];
 729                         e2 = e[j];
 730                         // this hash index works for both forward and backward edges
 731                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 732                         count = 0;
 733                         match = -1;
 734                         for (hash = edgehash[hashindex];hash;hash = hash->next)
 735                         {
 736                                 if (hash->element[0] == e2 && hash->element[1] == e1)
 737                                 {
 738                                         if (hash->triangle != i)
 739                                                 match = hash->triangle;
 740                                         count++;
 741                                 }
 742                                 else if ((hash->element[0] == e1 && hash->element[1] == e2))
 743                                         count++;
 744                         }
 745                         // detect edges shared by three triangles and make them seams
 746                         if (count > 2)
 747                                 match = -1;
 748                         n[p] = match;
 749                 }
 750
 751                 // also send a keepalive here (this can take a while too!)
 752                 CL_KeepaliveMessage(false);
 753         }
 754         // free the allocated buffer
 755         Mem_Free(edgehashentries);
 756         Mem_Free(edgehash);
 757 }
 758 #else
 759 // very slow but simple way
 760 static int Mod_FindTriangleWithEdge(const int *elements, int numtriangles, int start, int end, int ignore)
 761 {
 762         int i, match, count;
 763         count = 0;
 764         match = -1;
 765         for (i = 0;i < numtriangles;i++, elements += 3)
 766         {
 767                      if ((elements[0] == start && elements[1] == end)
 768                       || (elements[1] == start && elements[2] == end)
 769                       || (elements[2] == start && elements[0] == end))
 770                 {
 771                         if (i != ignore)
 772                                 match = i;
 773                         count++;
 774                 }
 775                 else if ((elements[1] == start && elements[0] == end)
 776                       || (elements[2] == start && elements[1] == end)
 777                       || (elements[0] == start && elements[2] == end))
 778                         count++;
 779         }
 780         // detect edges shared by three triangles and make them seams
 781         if (count > 2)
 782                 match = -1;
 783         return match;
 784 }
 785
 786 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 787 {
 788         int i, *n;
 789         const int *e;
 790         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 791         {
 792                 n[0] = Mod_FindTriangleWithEdge(elements, numtriangles, e[1], e[0], i);
 793                 n[1] = Mod_FindTriangleWithEdge(elements, numtriangles, e[2], e[1], i);
 794                 n[2] = Mod_FindTriangleWithEdge(elements, numtriangles, e[0], e[2], i);
 795         }
 796 }
 797 #endif
 798
 799 void Mod_ValidateElements(int *elements, int numtriangles, int firstvertex, int numverts, const char *filename, int fileline)
 800 {
 801         int i, warned = false, endvertex = firstvertex + numverts;
 802         for (i = 0;i < numtriangles * 3;i++)
 803         {
 804                 if (elements[i] < firstvertex || elements[i] >= endvertex)
 805                 {
 806                         if (!warned)
 807                         {
 808                                 warned = true;
 809                                 Con_Printf("Mod_ValidateElements: out of bounds elements detected at %s:%d\n", filename, fileline);
 810                         }
 811                         elements[i] = firstvertex;
 812                 }
 813         }
 814 }
 815
 816 // warning: this is an expensive function!
 817 void Mod_BuildNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const int *elements, float *normal3f, qboolean areaweighting)
 818 {
 819         int i, j;
 820         const int *element;
 821         float *vectorNormal;
 822         float areaNormal[3];
 823         // clear the vectors
 824         memset(normal3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 825         // process each vertex of each triangle and accumulate the results
 826         // use area-averaging, to make triangles with a big area have a bigger
 827         // weighting on the vertex normal than triangles with a small area
 828         // to do so, just add the 'normals' together (the bigger the area
 829         // the greater the length of the normal is
 830         element = elements;
 831         for (i = 0; i < numtriangles; i++, element += 3)
 832         {
 833                 TriangleNormal(
 834                         vertex3f + element[0] * 3,
 835                         vertex3f + element[1] * 3,
 836                         vertex3f + element[2] * 3,
 837                         areaNormal
 838                         );
 839
 840                 if (!areaweighting)
 841                         VectorNormalize(areaNormal);
 842
 843                 for (j = 0;j < 3;j++)
 844                 {
 845                         vectorNormal = normal3f + element[j] * 3;
 846                         vectorNormal[0] += areaNormal[0];
 847                         vectorNormal[1] += areaNormal[1];
 848                         vectorNormal[2] += areaNormal[2];
 849                 }
 850         }
 851         // and just normalize the accumulated vertex normal in the end
 852         vectorNormal = normal3f + 3 * firstvertex;
 853         for (i = 0; i < numvertices; i++, vectorNormal += 3)
 854                 VectorNormalize(vectorNormal);
 855 }
 856
 857 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)
 858 {
 859         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 860         // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 861         // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 862
 863         // 6 multiply, 9 subtract
 864         VectorSubtract(v1, v0, v10);
 865         VectorSubtract(v2, v0, v20);
 866         normal3f[0] = v20[1] * v10[2] - v20[2] * v10[1];
 867         normal3f[1] = v20[2] * v10[0] - v20[0] * v10[2];
 868         normal3f[2] = v20[0] * v10[1] - v20[1] * v10[0];
 869         // 12 multiply, 10 subtract
 870         tc10[1] = tc1[1] - tc0[1];
 871         tc20[1] = tc2[1] - tc0[1];
 872         svector3f[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 873         svector3f[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 874         svector3f[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 875         tc10[0] = tc1[0] - tc0[0];
 876         tc20[0] = tc2[0] - tc0[0];
 877         tvector3f[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 878         tvector3f[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 879         tvector3f[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 880         // 12 multiply, 4 add, 6 subtract
 881         f = DotProduct(svector3f, normal3f);
 882         svector3f[0] -= f * normal3f[0];
 883         svector3f[1] -= f * normal3f[1];
 884         svector3f[2] -= f * normal3f[2];
 885         f = DotProduct(tvector3f, normal3f);
 886         tvector3f[0] -= f * normal3f[0];
 887         tvector3f[1] -= f * normal3f[1];
 888         tvector3f[2] -= f * normal3f[2];
 889         // if texture is mapped the wrong way (counterclockwise), the tangents
 890         // have to be flipped, this is detected by calculating a normal from the
 891         // two tangents, and seeing if it is opposite the surface normal
 892         // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 893         CrossProduct(tvector3f, svector3f, tangentcross);
 894         if (DotProduct(tangentcross, normal3f) < 0)
 895         {
 896                 VectorNegate(svector3f, svector3f);
 897                 VectorNegate(tvector3f, tvector3f);
 898         }
 899 }
 900
 901 // warning: this is a very expensive function!
 902 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)
 903 {
 904         int i, tnum;
 905         float sdir[3], tdir[3], normal[3], *sv, *tv;
 906         const float *v0, *v1, *v2, *tc0, *tc1, *tc2, *n;
 907         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 908         const int *e;
 909         // clear the vectors
 910         memset(svector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 911         memset(tvector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 912         // process each vertex of each triangle and accumulate the results
 913         for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
 914         {
 915                 v0 = vertex3f + e[0] * 3;
 916                 v1 = vertex3f + e[1] * 3;
 917                 v2 = vertex3f + e[2] * 3;
 918                 tc0 = texcoord2f + e[0] * 2;
 919                 tc1 = texcoord2f + e[1] * 2;
 920                 tc2 = texcoord2f + e[2] * 2;
 921
 922                 // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 923                 // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 924
 925                 // calculate the edge directions and surface normal
 926                 // 6 multiply, 9 subtract
 927                 VectorSubtract(v1, v0, v10);
 928                 VectorSubtract(v2, v0, v20);
 929                 normal[0] = v20[1] * v10[2] - v20[2] * v10[1];
 930                 normal[1] = v20[2] * v10[0] - v20[0] * v10[2];
 931                 normal[2] = v20[0] * v10[1] - v20[1] * v10[0];
 932
 933                 // calculate the tangents
 934                 // 12 multiply, 10 subtract
 935                 tc10[1] = tc1[1] - tc0[1];
 936                 tc20[1] = tc2[1] - tc0[1];
 937                 sdir[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 938                 sdir[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 939                 sdir[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 940                 tc10[0] = tc1[0] - tc0[0];
 941                 tc20[0] = tc2[0] - tc0[0];
 942                 tdir[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 943                 tdir[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 944                 tdir[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 945
 946                 // if texture is mapped the wrong way (counterclockwise), the tangents
 947                 // have to be flipped, this is detected by calculating a normal from the
 948                 // two tangents, and seeing if it is opposite the surface normal
 949                 // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 950                 CrossProduct(tdir, sdir, tangentcross);
 951                 if (DotProduct(tangentcross, normal) < 0)
 952                 {
 953                         VectorNegate(sdir, sdir);
 954                         VectorNegate(tdir, tdir);
 955                 }
 956
 957                 if (!areaweighting)
 958                 {
 959                         VectorNormalize(sdir);
 960                         VectorNormalize(tdir);
 961                 }
 962                 for (i = 0;i < 3;i++)
 963                 {
 964                         VectorAdd(svector3f + e[i]*3, sdir, svector3f + e[i]*3);
 965                         VectorAdd(tvector3f + e[i]*3, tdir, tvector3f + e[i]*3);
 966                 }
 967         }
 968         // make the tangents completely perpendicular to the surface normal, and
 969         // then normalize them
 970         // 16 assignments, 2 divide, 2 sqrt, 2 negates, 14 adds, 24 multiplies
 971         for (i = 0, sv = svector3f + 3 * firstvertex, tv = tvector3f + 3 * firstvertex, n = normal3f + 3 * firstvertex;i < numvertices;i++, sv += 3, tv += 3, n += 3)
 972         {
 973                 f = -DotProduct(sv, n);
 974                 VectorMA(sv, f, n, sv);
 975                 VectorNormalize(sv);
 976                 f = -DotProduct(tv, n);
 977                 VectorMA(tv, f, n, tv);
 978                 VectorNormalize(tv);
 979         }
 980 }
 981
 982 void Mod_AllocSurfMesh(mempool_t *mempool, int numvertices, int numtriangles, qboolean lightmapoffsets, qboolean vertexcolors, qboolean neighbors)
 983 {
 984         unsigned char *data;
 985         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));
 986         loadmodel->surfmesh.num_vertices = numvertices;
 987         loadmodel->surfmesh.num_triangles = numtriangles;
 988         if (loadmodel->surfmesh.num_vertices)
 989         {
 990                 loadmodel->surfmesh.data_vertex3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 991                 loadmodel->surfmesh.data_svector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 992                 loadmodel->surfmesh.data_tvector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 993                 loadmodel->surfmesh.data_normal3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
 994                 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 995                 loadmodel->surfmesh.data_texcoordlightmap2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
 996                 if (vertexcolors)
 997                         loadmodel->surfmesh.data_lightmapcolor4f = (float *)data, data += sizeof(float[4]) * loadmodel->surfmesh.num_vertices;
 998                 if (lightmapoffsets)
 999                         loadmodel->surfmesh.data_lightmapoffsets = (int *)data, data += sizeof(int) * loadmodel->surfmesh.num_vertices;
1000         }
1001         if (loadmodel->surfmesh.num_triangles)
1002         {
1003                 loadmodel->surfmesh.data_element3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
1004                 if (neighbors)
1005                         loadmodel->surfmesh.data_neighbor3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
1006                 if (loadmodel->surfmesh.num_vertices <= 65536)
1007                         loadmodel->surfmesh.data_element3s = (unsigned short *)data, data += sizeof(unsigned short[3]) * loadmodel->surfmesh.num_triangles;
1008         }
1009 }
1010
1011 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)
1012 {
1013         shadowmesh_t *newmesh;
1014         unsigned char *data;
1015         int size;
1016         size = sizeof(shadowmesh_t);
1017         size += maxverts * sizeof(float[3]);
1018         if (light)
1019                 size += maxverts * sizeof(float[11]);
1020         size += maxtriangles * sizeof(int[3]);
1021         if (maxverts <= 65536)
1022                 size += maxtriangles * sizeof(unsigned short[3]);
1023         if (neighbors)
1024                 size += maxtriangles * sizeof(int[3]);
1025         if (expandable)
1026                 size += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *) + maxverts * sizeof(shadowmeshvertexhash_t);
1027         data = (unsigned char *)Mem_Alloc(mempool, size);
1028         newmesh = (shadowmesh_t *)data;data += sizeof(*newmesh);
1029         newmesh->map_diffuse = map_diffuse;
1030         newmesh->map_specular = map_specular;
1031         newmesh->map_normal = map_normal;
1032         newmesh->maxverts = maxverts;
1033         newmesh->maxtriangles = maxtriangles;
1034         newmesh->numverts = 0;
1035         newmesh->numtriangles = 0;
1036         memset(newmesh->sideoffsets, 0, sizeof(newmesh->sideoffsets));
1037         memset(newmesh->sidetotals, 0, sizeof(newmesh->sidetotals));
1038
1039         newmesh->vertex3f = (float *)data;data += maxverts * sizeof(float[3]);
1040         if (light)
1041         {
1042                 newmesh->svector3f = (float *)data;data += maxverts * sizeof(float[3]);
1043                 newmesh->tvector3f = (float *)data;data += maxverts * sizeof(float[3]);
1044                 newmesh->normal3f = (float *)data;data += maxverts * sizeof(float[3]);
1045                 newmesh->texcoord2f = (float *)data;data += maxverts * sizeof(float[2]);
1046         }
1047         newmesh->element3i = (int *)data;data += maxtriangles * sizeof(int[3]);
1048         if (neighbors)
1049         {
1050                 newmesh->neighbor3i = (int *)data;data += maxtriangles * sizeof(int[3]);
1051         }
1052         if (expandable)
1053         {
1054                 newmesh->vertexhashtable = (shadowmeshvertexhash_t **)data;data += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *);
1055                 newmesh->vertexhashentries = (shadowmeshvertexhash_t *)data;data += maxverts * sizeof(shadowmeshvertexhash_t);
1056         }
1057         if (maxverts <= 65536)
1058                 newmesh->element3s = (unsigned short *)data;data += maxtriangles * sizeof(unsigned short[3]);
1059         return newmesh;
1060 }
1061
1062 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh, int light, int neighbors)
1063 {
1064         shadowmesh_t *newmesh;
1065         newmesh = Mod_ShadowMesh_Alloc(mempool, oldmesh->numverts, oldmesh->numtriangles, oldmesh->map_diffuse, oldmesh->map_specular, oldmesh->map_normal, light, neighbors, false);
1066         newmesh->numverts = oldmesh->numverts;
1067         newmesh->numtriangles = oldmesh->numtriangles;
1068         memcpy(newmesh->sideoffsets, oldmesh->sideoffsets, sizeof(oldmesh->sideoffsets));
1069         memcpy(newmesh->sidetotals, oldmesh->sidetotals, sizeof(oldmesh->sidetotals));
1070
1071         memcpy(newmesh->vertex3f, oldmesh->vertex3f, oldmesh->numverts * sizeof(float[3]));
1072         if (newmesh->svector3f && oldmesh->svector3f)
1073         {
1074                 memcpy(newmesh->svector3f, oldmesh->svector3f, oldmesh->numverts * sizeof(float[3]));
1075                 memcpy(newmesh->tvector3f, oldmesh->tvector3f, oldmesh->numverts * sizeof(float[3]));
1076                 memcpy(newmesh->normal3f, oldmesh->normal3f, oldmesh->numverts * sizeof(float[3]));
1077                 memcpy(newmesh->texcoord2f, oldmesh->texcoord2f, oldmesh->numverts * sizeof(float[2]));
1078         }
1079         memcpy(newmesh->element3i, oldmesh->element3i, oldmesh->numtriangles * sizeof(int[3]));
1080         if (newmesh->neighbor3i && oldmesh->neighbor3i)
1081                 memcpy(newmesh->neighbor3i, oldmesh->neighbor3i, oldmesh->numtriangles * sizeof(int[3]));
1082         return newmesh;
1083 }
1084
1085 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *vertex14f)
1086 {
1087         int hashindex, vnum;
1088         shadowmeshvertexhash_t *hash;
1089         // this uses prime numbers intentionally
1090         hashindex = (unsigned int) (vertex14f[0] * 2003 + vertex14f[1] * 4001 + vertex14f[2] * 7919) % SHADOWMESHVERTEXHASH;
1091         for (hash = mesh->vertexhashtable[hashindex];hash;hash = hash->next)
1092         {
1093                 vnum = (hash - mesh->vertexhashentries);
1094                 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]))
1095                  && (mesh->svector3f == NULL || (mesh->svector3f[vnum * 3 + 0] == vertex14f[3] && mesh->svector3f[vnum * 3 + 1] == vertex14f[4] && mesh->svector3f[vnum * 3 + 2] == vertex14f[5]))
1096                  && (mesh->tvector3f == NULL || (mesh->tvector3f[vnum * 3 + 0] == vertex14f[6] && mesh->tvector3f[vnum * 3 + 1] == vertex14f[7] && mesh->tvector3f[vnum * 3 + 2] == vertex14f[8]))
1097                  && (mesh->normal3f == NULL || (mesh->normal3f[vnum * 3 + 0] == vertex14f[9] && mesh->normal3f[vnum * 3 + 1] == vertex14f[10] && mesh->normal3f[vnum * 3 + 2] == vertex14f[11]))
1098                  && (mesh->texcoord2f == NULL || (mesh->texcoord2f[vnum * 2 + 0] == vertex14f[12] && mesh->texcoord2f[vnum * 2 + 1] == vertex14f[13])))
1099                         return hash - mesh->vertexhashentries;
1100         }
1101         vnum = mesh->numverts++;
1102         hash = mesh->vertexhashentries + vnum;
1103         hash->next = mesh->vertexhashtable[hashindex];
1104         mesh->vertexhashtable[hashindex] = hash;
1105         if (mesh->vertex3f) {mesh->vertex3f[vnum * 3 + 0] = vertex14f[0];mesh->vertex3f[vnum * 3 + 1] = vertex14f[1];mesh->vertex3f[vnum * 3 + 2] = vertex14f[2];}
1106         if (mesh->svector3f) {mesh->svector3f[vnum * 3 + 0] = vertex14f[3];mesh->svector3f[vnum * 3 + 1] = vertex14f[4];mesh->svector3f[vnum * 3 + 2] = vertex14f[5];}
1107         if (mesh->tvector3f) {mesh->tvector3f[vnum * 3 + 0] = vertex14f[6];mesh->tvector3f[vnum * 3 + 1] = vertex14f[7];mesh->tvector3f[vnum * 3 + 2] = vertex14f[8];}
1108         if (mesh->normal3f) {mesh->normal3f[vnum * 3 + 0] = vertex14f[9];mesh->normal3f[vnum * 3 + 1] = vertex14f[10];mesh->normal3f[vnum * 3 + 2] = vertex14f[11];}
1109         if (mesh->texcoord2f) {mesh->texcoord2f[vnum * 2 + 0] = vertex14f[12];mesh->texcoord2f[vnum * 2 + 1] = vertex14f[13];}
1110         return vnum;
1111 }
1112
1113 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex14f)
1114 {
1115         if (mesh->numtriangles == 0)
1116         {
1117                 // set the properties on this empty mesh to be more favorable...
1118                 // (note: this case only occurs for the first triangle added to a new mesh chain)
1119                 mesh->map_diffuse = map_diffuse;
1120                 mesh->map_specular = map_specular;
1121                 mesh->map_normal = map_normal;
1122         }
1123         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)
1124         {
1125                 if (mesh->next == NULL)
1126                         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);
1127                 mesh = mesh->next;
1128         }
1129         mesh->element3i[mesh->numtriangles * 3 + 0] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 0);
1130         mesh->element3i[mesh->numtriangles * 3 + 1] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 1);
1131         mesh->element3i[mesh->numtriangles * 3 + 2] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 2);
1132         mesh->numtriangles++;
1133 }
1134
1135 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)
1136 {
1137         int i, j, e;
1138         float vbuf[3*14], *v;
1139         memset(vbuf, 0, sizeof(vbuf));
1140         for (i = 0;i < numtris;i++)
1141         {
1142                 for (j = 0, v = vbuf;j < 3;j++, v += 14)
1143                 {
1144                         e = *element3i++;
1145                         if (vertex3f)
1146                         {
1147                                 v[0] = vertex3f[e * 3 + 0];
1148                                 v[1] = vertex3f[e * 3 + 1];
1149                                 v[2] = vertex3f[e * 3 + 2];
1150                         }
1151                         if (svector3f)
1152                         {
1153                                 v[3] = svector3f[e * 3 + 0];
1154                                 v[4] = svector3f[e * 3 + 1];
1155                                 v[5] = svector3f[e * 3 + 2];
1156                         }
1157                         if (tvector3f)
1158                         {
1159                                 v[6] = tvector3f[e * 3 + 0];
1160                                 v[7] = tvector3f[e * 3 + 1];
1161                                 v[8] = tvector3f[e * 3 + 2];
1162                         }
1163                         if (normal3f)
1164                         {
1165                                 v[9] = normal3f[e * 3 + 0];
1166                                 v[10] = normal3f[e * 3 + 1];
1167                                 v[11] = normal3f[e * 3 + 2];
1168                         }
1169                         if (texcoord2f)
1170                         {
1171                                 v[12] = texcoord2f[e * 2 + 0];
1172                                 v[13] = texcoord2f[e * 2 + 1];
1173                         }
1174                 }
1175                 Mod_ShadowMesh_AddTriangle(mempool, mesh, map_diffuse, map_specular, map_normal, vbuf);
1176         }
1177
1178         // the triangle calculation can take a while, so let's do a keepalive here
1179         CL_KeepaliveMessage(false);
1180 }
1181
1182 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)
1183 {
1184         // the preparation before shadow mesh initialization can take a while, so let's do a keepalive here
1185         CL_KeepaliveMessage(false);
1186
1187         return Mod_ShadowMesh_Alloc(mempool, maxverts, maxtriangles, map_diffuse, map_specular, map_normal, light, neighbors, expandable);
1188 }
1189
1190 static void Mod_ShadowMesh_CreateVBOs(shadowmesh_t *mesh, mempool_t *mempool)
1191 {
1192         if (!mesh->numverts)
1193                 return;
1194
1195         // build r_vertexmesh_t array
1196         // (compressed interleaved array for faster rendering)
1197         if (!mesh->vertexmesh && mesh->texcoord2f)
1198         {
1199                 int vertexindex;
1200                 int numvertices = mesh->numverts;
1201                 r_vertexmesh_t *vertexmesh;
1202                 mesh->vertexmesh = vertexmesh = (r_vertexmesh_t*)Mem_Alloc(mempool, numvertices * sizeof(*mesh->vertexmesh));
1203                 for (vertexindex = 0;vertexindex < numvertices;vertexindex++, vertexmesh++)
1204                 {
1205                         VectorCopy(mesh->vertex3f + 3*vertexindex, vertexmesh->vertex3f);
1206                         VectorScale(mesh->svector3f + 3*vertexindex, 1.0f, vertexmesh->svector3f);
1207                         VectorScale(mesh->tvector3f + 3*vertexindex, 1.0f, vertexmesh->tvector3f);
1208                         VectorScale(mesh->normal3f + 3*vertexindex, 1.0f, vertexmesh->normal3f);
1209                         Vector2Copy(mesh->texcoord2f + 2*vertexindex, vertexmesh->texcoordtexture2f);
1210                 }
1211         }
1212
1213         // build r_vertexposition_t array
1214         if (!mesh->vertexposition)
1215         {
1216                 int vertexindex;
1217                 int numvertices = mesh->numverts;
1218                 r_vertexposition_t *vertexposition;
1219                 mesh->vertexposition = vertexposition = (r_vertexposition_t*)Mem_Alloc(loadmodel->mempool, numvertices * sizeof(*mesh->vertexposition));
1220                 for (vertexindex = 0;vertexindex < numvertices;vertexindex++, vertexposition++)
1221                         VectorCopy(mesh->vertex3f + 3*vertexindex, vertexposition->vertex3f);
1222         }
1223
1224         // upload r_vertexmesh_t array as a buffer
1225         if (mesh->vertexmesh && !mesh->vertexmeshbuffer)
1226                 mesh->vertexmeshbuffer = R_Mesh_CreateMeshBuffer(mesh->vertexmesh, mesh->numverts * sizeof(*mesh->vertexmesh), loadmodel->name, false, false, false);
1227
1228         // upload r_vertexposition_t array as a buffer
1229         if (mesh->vertexposition && !mesh->vertexpositionbuffer)
1230                 mesh->vertexpositionbuffer = R_Mesh_CreateMeshBuffer(mesh->vertexposition, mesh->numverts * sizeof(*mesh->vertexposition), loadmodel->name, false, false, false);
1231
1232         // upload short indices as a buffer
1233         if (mesh->element3s && !mesh->element3s_indexbuffer)
1234                 mesh->element3s_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3s, mesh->numtriangles * sizeof(short[3]), loadmodel->name, true, false, true);
1235
1236         // upload int indices as a buffer
1237         if (mesh->element3i && !mesh->element3i_indexbuffer && !mesh->element3s)
1238                 mesh->element3i_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3i, mesh->numtriangles * sizeof(int[3]), loadmodel->name, true, false, false);
1239
1240         // vertex buffer is several arrays and we put them in the same buffer
1241         //
1242         // is this wise?  the texcoordtexture2f array is used with dynamic
1243         // vertex/svector/tvector/normal when rendering animated models, on the
1244         // other hand animated models don't use a lot of vertices anyway...
1245         if (!mesh->vbo_vertexbuffer)
1246         {
1247                 size_t size;
1248                 unsigned char *mem;
1249                 size = 0;
1250                 mesh->vbooffset_vertex3f           = size;if (mesh->vertex3f          ) size += mesh->numverts * sizeof(float[3]);
1251                 mesh->vbooffset_svector3f          = size;if (mesh->svector3f         ) size += mesh->numverts * sizeof(float[3]);
1252                 mesh->vbooffset_tvector3f          = size;if (mesh->tvector3f         ) size += mesh->numverts * sizeof(float[3]);
1253                 mesh->vbooffset_normal3f           = size;if (mesh->normal3f          ) size += mesh->numverts * sizeof(float[3]);
1254                 mesh->vbooffset_texcoord2f         = size;if (mesh->texcoord2f        ) size += mesh->numverts * sizeof(float[2]);
1255                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
1256                 if (mesh->vertex3f          ) memcpy(mem + mesh->vbooffset_vertex3f          , mesh->vertex3f          , mesh->numverts * sizeof(float[3]));
1257                 if (mesh->svector3f         ) memcpy(mem + mesh->vbooffset_svector3f         , mesh->svector3f         , mesh->numverts * sizeof(float[3]));
1258                 if (mesh->tvector3f         ) memcpy(mem + mesh->vbooffset_tvector3f         , mesh->tvector3f         , mesh->numverts * sizeof(float[3]));
1259                 if (mesh->normal3f          ) memcpy(mem + mesh->vbooffset_normal3f          , mesh->normal3f          , mesh->numverts * sizeof(float[3]));
1260                 if (mesh->texcoord2f        ) memcpy(mem + mesh->vbooffset_texcoord2f        , mesh->texcoord2f        , mesh->numverts * sizeof(float[2]));
1261                 mesh->vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, "shadowmesh", false, false, false);
1262                 Mem_Free(mem);
1263         }
1264 }
1265
1266 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh, qboolean light, qboolean neighbors, qboolean createvbo)
1267 {
1268         shadowmesh_t *mesh, *newmesh, *nextmesh;
1269         // reallocate meshs to conserve space
1270         for (mesh = firstmesh, firstmesh = NULL;mesh;mesh = nextmesh)
1271         {
1272                 nextmesh = mesh->next;
1273                 if (mesh->numverts >= 3 && mesh->numtriangles >= 1)
1274                 {
1275                         newmesh = Mod_ShadowMesh_ReAlloc(mempool, mesh, light, neighbors);
1276                         newmesh->next = firstmesh;
1277                         firstmesh = newmesh;
1278                         if (newmesh->element3s)
1279                         {
1280                                 int i;
1281                                 for (i = 0;i < newmesh->numtriangles*3;i++)
1282                                         newmesh->element3s[i] = newmesh->element3i[i];
1283                         }
1284                         if (createvbo)
1285                                 Mod_ShadowMesh_CreateVBOs(newmesh, mempool);
1286                 }
1287                 Mem_Free(mesh);
1288         }
1289
1290         // this can take a while, so let's do a keepalive here
1291         CL_KeepaliveMessage(false);
1292
1293         return firstmesh;
1294 }
1295
1296 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius)
1297 {
1298         int i;
1299         shadowmesh_t *mesh;
1300         vec3_t nmins, nmaxs, ncenter, temp;
1301         float nradius2, dist2, *v;
1302         VectorClear(nmins);
1303         VectorClear(nmaxs);
1304         // calculate bbox
1305         for (mesh = firstmesh;mesh;mesh = mesh->next)
1306         {
1307                 if (mesh == firstmesh)
1308                 {
1309                         VectorCopy(mesh->vertex3f, nmins);
1310                         VectorCopy(mesh->vertex3f, nmaxs);
1311                 }
1312                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1313                 {
1314                         if (nmins[0] > v[0]) nmins[0] = v[0];if (nmaxs[0] < v[0]) nmaxs[0] = v[0];
1315                         if (nmins[1] > v[1]) nmins[1] = v[1];if (nmaxs[1] < v[1]) nmaxs[1] = v[1];
1316                         if (nmins[2] > v[2]) nmins[2] = v[2];if (nmaxs[2] < v[2]) nmaxs[2] = v[2];
1317                 }
1318         }
1319         // calculate center and radius
1320         ncenter[0] = (nmins[0] + nmaxs[0]) * 0.5f;
1321         ncenter[1] = (nmins[1] + nmaxs[1]) * 0.5f;
1322         ncenter[2] = (nmins[2] + nmaxs[2]) * 0.5f;
1323         nradius2 = 0;
1324         for (mesh = firstmesh;mesh;mesh = mesh->next)
1325         {
1326                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1327                 {
1328                         VectorSubtract(v, ncenter, temp);
1329                         dist2 = DotProduct(temp, temp);
1330                         if (nradius2 < dist2)
1331                                 nradius2 = dist2;
1332                 }
1333         }
1334         // return data
1335         if (mins)
1336                 VectorCopy(nmins, mins);
1337         if (maxs)
1338                 VectorCopy(nmaxs, maxs);
1339         if (center)
1340                 VectorCopy(ncenter, center);
1341         if (radius)
1342                 *radius = sqrt(nradius2);
1343 }
1344
1345 void Mod_ShadowMesh_Free(shadowmesh_t *mesh)
1346 {
1347         shadowmesh_t *nextmesh;
1348         for (;mesh;mesh = nextmesh)
1349         {
1350                 if (mesh->vertexpositionbuffer)
1351                         R_Mesh_DestroyMeshBuffer(mesh->vertexpositionbuffer);
1352                 if (mesh->vertexmeshbuffer)
1353                         R_Mesh_DestroyMeshBuffer(mesh->vertexmeshbuffer);
1354                 if (mesh->element3i_indexbuffer)
1355                         R_Mesh_DestroyMeshBuffer(mesh->element3i_indexbuffer);
1356                 if (mesh->element3s_indexbuffer)
1357                         R_Mesh_DestroyMeshBuffer(mesh->element3s_indexbuffer);
1358                 if (mesh->vbo_vertexbuffer)
1359                         R_Mesh_DestroyMeshBuffer(mesh->vbo_vertexbuffer);
1360                 nextmesh = mesh->next;
1361                 Mem_Free(mesh);
1362         }
1363 }
1364
1365 void Mod_CreateCollisionMesh(dp_model_t *mod)
1366 {
1367         int k;
1368         int numcollisionmeshtriangles;
1369         const msurface_t *surface;
1370         mempool_t *mempool = mod->mempool;
1371         if (!mempool && mod->brush.parentmodel)
1372                 mempool = mod->brush.parentmodel->mempool;
1373         // make a single combined collision mesh for physics engine use
1374         // TODO rewrite this to use the collision brushes as source, to fix issues with e.g. common/caulk which creates no drawsurface
1375         numcollisionmeshtriangles = 0;
1376         for (k = 0;k < mod->nummodelsurfaces;k++)
1377         {
1378                 surface = mod->data_surfaces + mod->firstmodelsurface + k;
1379                 if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1380                         continue;
1381                 numcollisionmeshtriangles += surface->num_triangles;
1382         }
1383         mod->brush.collisionmesh = Mod_ShadowMesh_Begin(mempool, numcollisionmeshtriangles * 3, numcollisionmeshtriangles, NULL, NULL, NULL, false, false, true);
1384         for (k = 0;k < mod->nummodelsurfaces;k++)
1385         {
1386                 surface = mod->data_surfaces + mod->firstmodelsurface + k;
1387                 if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1388                         continue;
1389                 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));
1390         }
1391         mod->brush.collisionmesh = Mod_ShadowMesh_Finish(mempool, mod->brush.collisionmesh, false, true, false);
1392 }
1393
1394 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)
1395 {
1396         float v[3], tc[3];
1397         v[0] = ix;
1398         v[1] = iy;
1399         if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
1400                 v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
1401         else
1402                 v[2] = 0;
1403         Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
1404         Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
1405         texcoord2f[0] = tc[0];
1406         texcoord2f[1] = tc[1];
1407 }
1408
1409 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)
1410 {
1411         float vup[3], vdown[3], vleft[3], vright[3];
1412         float tcup[3], tcdown[3], tcleft[3], tcright[3];
1413         float sv[3], tv[3], nl[3];
1414         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
1415         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
1416         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
1417         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
1418         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
1419         Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
1420         Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
1421         VectorAdd(svector3f, sv, svector3f);
1422         VectorAdd(tvector3f, tv, tvector3f);
1423         VectorAdd(normal3f, nl, normal3f);
1424         Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
1425         VectorAdd(svector3f, sv, svector3f);
1426         VectorAdd(tvector3f, tv, tvector3f);
1427         VectorAdd(normal3f, nl, normal3f);
1428         Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
1429         VectorAdd(svector3f, sv, svector3f);
1430         VectorAdd(tvector3f, tv, tvector3f);
1431         VectorAdd(normal3f, nl, normal3f);
1432 }
1433
1434 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)
1435 {
1436         int x, y, ix, iy, *e;
1437         e = element3i;
1438         for (y = 0;y < height;y++)
1439         {
1440                 for (x = 0;x < width;x++)
1441                 {
1442                         e[0] = (y + 1) * (width + 1) + (x + 0);
1443                         e[1] = (y + 0) * (width + 1) + (x + 0);
1444                         e[2] = (y + 1) * (width + 1) + (x + 1);
1445                         e[3] = (y + 0) * (width + 1) + (x + 0);
1446                         e[4] = (y + 0) * (width + 1) + (x + 1);
1447                         e[5] = (y + 1) * (width + 1) + (x + 1);
1448                         e += 6;
1449                 }
1450         }
1451         Mod_BuildTriangleNeighbors(neighbor3i, element3i, width*height*2);
1452         for (y = 0, iy = y1;y < height + 1;y++, iy++)
1453                 for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
1454                         Mod_GetTerrainVertexFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
1455 }
1456
1457 #if 0
1458 void Mod_Terrain_SurfaceRecurseChunk(dp_model_t *model, int stepsize, int x, int y)
1459 {
1460         float mins[3];
1461         float maxs[3];
1462         float chunkwidth = min(stepsize, model->terrain.width - 1 - x);
1463         float chunkheight = min(stepsize, model->terrain.height - 1 - y);
1464         float viewvector[3];
1465         unsigned int firstvertex;
1466         unsigned int *e;
1467         float *v;
1468         if (chunkwidth < 2 || chunkheight < 2)
1469                 return;
1470         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]);
1471         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]);
1472         viewvector[0] = bound(mins[0], localvieworigin, maxs[0]) - model->terrain.vieworigin[0];
1473         viewvector[1] = bound(mins[1], localvieworigin, maxs[1]) - model->terrain.vieworigin[1];
1474         viewvector[2] = bound(mins[2], localvieworigin, maxs[2]) - model->terrain.vieworigin[2];
1475         if (stepsize > 1 && VectorLength(viewvector) < stepsize*model->terrain.scale[0]*r_terrain_lodscale.value)
1476         {
1477                 // too close for this stepsize, emit as 4 chunks instead
1478                 stepsize /= 2;
1479                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y);
1480                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y);
1481                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y+stepsize);
1482                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y+stepsize);
1483                 return;
1484         }
1485         // emit the geometry at stepsize into our vertex buffer / index buffer
1486         // we add two columns and two rows for skirt
1487         outwidth = chunkwidth+2;
1488         outheight = chunkheight+2;
1489         outwidth2 = outwidth-1;
1490         outheight2 = outheight-1;
1491         outwidth3 = outwidth+1;
1492         outheight3 = outheight+1;
1493         firstvertex = numvertices;
1494         e = model->terrain.element3i + numtriangles;
1495         numtriangles += chunkwidth*chunkheight*2+chunkwidth*2*2+chunkheight*2*2;
1496         v = model->terrain.vertex3f + numvertices;
1497         numvertices += (chunkwidth+1)*(chunkheight+1)+(chunkwidth+1)*2+(chunkheight+1)*2;
1498         // emit the triangles (note: the skirt is treated as two extra rows and two extra columns)
1499         for (ty = 0;ty < outheight;ty++)
1500         {
1501                 for (tx = 0;tx < outwidth;tx++)
1502                 {
1503                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1504                         *e++ = firstvertex + (ty  )*outwidth3+(tx+1);
1505                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1506                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1507                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1508                         *e++ = firstvertex + (ty+1)*outwidth3+(tx  );
1509                 }
1510         }
1511         // TODO: emit surface vertices (x+tx*stepsize, y+ty*stepsize)
1512         for (ty = 0;ty <= outheight;ty++)
1513         {
1514                 skirtrow = ty == 0 || ty == outheight;
1515                 ry = y+bound(1, ty, outheight)*stepsize;
1516                 for (tx = 0;tx <= outwidth;tx++)
1517                 {
1518                         skirt = skirtrow || tx == 0 || tx == outwidth;
1519                         rx = x+bound(1, tx, outwidth)*stepsize;
1520                         v[0] = rx*scale[0];
1521                         v[1] = ry*scale[1];
1522                         v[2] = heightmap[ry*terrainwidth+rx]*scale[2];
1523                         v += 3;
1524                 }
1525         }
1526         // TODO: emit skirt vertices
1527 }
1528
1529 void Mod_Terrain_UpdateSurfacesForViewOrigin(dp_model_t *model)
1530 {
1531         for (y = 0;y < model->terrain.size[1];y += model->terrain.
1532         Mod_Terrain_SurfaceRecurseChunk(model, model->terrain.maxstepsize, x, y);
1533         Mod_Terrain_BuildChunk(model,
1534 }
1535 #endif
1536
1537 int Mod_LoadQ3Shaders_EnumerateWaveFunc(const char *s)
1538 {
1539         int offset = 0;
1540         if (!strncasecmp(s, "user", 4)) // parse stuff like "user1sin", always user<n>func
1541         {
1542                 offset = bound(0, s[4] - '0', 9);
1543                 offset = (offset + 1) << Q3WAVEFUNC_USER_SHIFT;
1544                 s += 4;
1545                 if(*s)
1546                         ++s;
1547         }
1548         if (!strcasecmp(s, "sin"))             return offset | Q3WAVEFUNC_SIN;
1549         if (!strcasecmp(s, "square"))          return offset | Q3WAVEFUNC_SQUARE;
1550         if (!strcasecmp(s, "triangle"))        return offset | Q3WAVEFUNC_TRIANGLE;
1551         if (!strcasecmp(s, "sawtooth"))        return offset | Q3WAVEFUNC_SAWTOOTH;
1552         if (!strcasecmp(s, "inversesawtooth")) return offset | Q3WAVEFUNC_INVERSESAWTOOTH;
1553         if (!strcasecmp(s, "noise"))           return offset | Q3WAVEFUNC_NOISE;
1554         if (!strcasecmp(s, "none"))            return offset | Q3WAVEFUNC_NONE;
1555         Con_DPrintf("Mod_LoadQ3Shaders: unknown wavefunc %s\n", s);
1556         return offset | Q3WAVEFUNC_NONE;
1557 }
1558
1559 void Mod_FreeQ3Shaders(void)
1560 {
1561         Mem_FreePool(&q3shaders_mem);
1562 }
1563
1564 static void Q3Shader_AddToHash (q3shaderinfo_t* shader)
1565 {
1566         unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)shader->name, strlen (shader->name));
1567         q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1568         q3shader_hash_entry_t* lastEntry = NULL;
1569         while (entry != NULL)
1570         {
1571                 if (strcasecmp (entry->shader.name, shader->name) == 0)
1572                 {
1573                         unsigned char *start, *end, *start2;
1574                         start = (unsigned char *) (&shader->Q3SHADERINFO_COMPARE_START);
1575                         end = ((unsigned char *) (&shader->Q3SHADERINFO_COMPARE_END)) + sizeof(shader->Q3SHADERINFO_COMPARE_END);
1576                         start2 = (unsigned char *) (&entry->shader.Q3SHADERINFO_COMPARE_START);
1577                         if(memcmp(start, start2, end - start))
1578                                 Con_DPrintf("Shader '%s' already defined, ignoring mismatching redeclaration\n", shader->name);
1579                         else
1580                                 Con_DPrintf("Shader '%s' already defined\n", shader->name);
1581                         return;
1582                 }
1583                 lastEntry = entry;
1584                 entry = entry->chain;
1585         }
1586         if (entry == NULL)
1587         {
1588                 if (lastEntry->shader.name[0] != 0)
1589                 {
1590                         /* Add to chain */
1591                         q3shader_hash_entry_t* newEntry = (q3shader_hash_entry_t*)
1592                           Mem_ExpandableArray_AllocRecord (&q3shader_data->hash_entries);
1593
1594                         while (lastEntry->chain != NULL) lastEntry = lastEntry->chain;
1595                         lastEntry->chain = newEntry;
1596                         newEntry->chain = NULL;
1597                         lastEntry = newEntry;
1598                 }
1599                 /* else: head of chain, in hash entry array */
1600                 entry = lastEntry;
1601         }
1602         memcpy (&entry->shader, shader, sizeof (q3shaderinfo_t));
1603 }
1604
1605 extern cvar_t mod_q3shader_default_offsetmapping;
1606 void Mod_LoadQ3Shaders(void)
1607 {
1608         int j;
1609         int fileindex;
1610         fssearch_t *search;
1611         char *f;
1612         const char *text;
1613         q3shaderinfo_t shader;
1614         q3shaderinfo_layer_t *layer;
1615         int numparameters;
1616         char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
1617         char *custsurfaceparmnames[256]; // VorteX: q3map2 has 64 but well, someone will need more
1618         unsigned long custsurfaceparms[256];
1619         int numcustsurfaceparms;
1620
1621         Mod_FreeQ3Shaders();
1622
1623         q3shaders_mem = Mem_AllocPool("q3shaders", 0, NULL);
1624         q3shader_data = (q3shader_data_t*)Mem_Alloc (q3shaders_mem,
1625                 sizeof (q3shader_data_t));
1626         Mem_ExpandableArray_NewArray (&q3shader_data->hash_entries,
1627                 q3shaders_mem, sizeof (q3shader_hash_entry_t), 256);
1628         Mem_ExpandableArray_NewArray (&q3shader_data->char_ptrs,
1629                 q3shaders_mem, sizeof (char**), 256);
1630
1631         // parse custinfoparms.txt
1632         numcustsurfaceparms = 0;
1633         if ((text = f = (char *)FS_LoadFile("scripts/custinfoparms.txt", tempmempool, false, NULL)) != NULL)
1634         {
1635                 if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1636                         Con_DPrintf("scripts/custinfoparms.txt: contentflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1637                 else
1638                 {
1639                         while (COM_ParseToken_QuakeC(&text, false))
1640                                 if (!strcasecmp(com_token, "}"))
1641                                         break;
1642                         // custom surfaceflags section
1643                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1644                                 Con_DPrintf("scripts/custinfoparms.txt: surfaceflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1645                         else
1646                         {
1647                                 while(COM_ParseToken_QuakeC(&text, false))
1648                                 {
1649                                         if (!strcasecmp(com_token, "}"))
1650                                                 break;
1651                                         // register surfaceflag
1652                                         if (numcustsurfaceparms >= 256)
1653                                         {
1654                                                 Con_Printf("scripts/custinfoparms.txt: surfaceflags section parsing error - max 256 surfaceflags exceeded\n");
1655                                                 break;
1656                                         }
1657                                         // name
1658                                         j = strlen(com_token)+1;
1659                                         custsurfaceparmnames[numcustsurfaceparms] = (char *)Mem_Alloc(tempmempool, j);
1660                                         strlcpy(custsurfaceparmnames[numcustsurfaceparms], com_token, j+1);
1661                                         // value
1662                                         if (COM_ParseToken_QuakeC(&text, false))
1663                                                 custsurfaceparms[numcustsurfaceparms] = strtol(com_token, NULL, 0);
1664                                         else
1665                                                 custsurfaceparms[numcustsurfaceparms] = 0;
1666                                         numcustsurfaceparms++;
1667                                 }
1668                         }
1669                 }
1670                 Mem_Free(f);
1671         }
1672
1673         // parse shaders
1674         search = FS_Search("scripts/*.shader", true, false);
1675         if (!search)
1676                 return;
1677         for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
1678         {
1679                 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
1680                 if (!f)
1681                         continue;
1682                 while (COM_ParseToken_QuakeC(&text, false))
1683                 {
1684                         memset (&shader, 0, sizeof(shader));
1685                         shader.reflectmin = 0;
1686                         shader.reflectmax = 1;
1687                         shader.refractfactor = 1;
1688                         Vector4Set(shader.refractcolor4f, 1, 1, 1, 1);
1689                         shader.reflectfactor = 1;
1690                         Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
1691                         shader.r_water_wateralpha = 1;
1692                         shader.offsetmapping = (mod_q3shader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
1693                         shader.offsetscale = 1;
1694                         shader.specularscalemod = 1;
1695                         shader.specularpowermod = 1;
1696
1697                         strlcpy(shader.name, com_token, sizeof(shader.name));
1698                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1699                         {
1700                                 Con_DPrintf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
1701                                 break;
1702                         }
1703                         while (COM_ParseToken_QuakeC(&text, false))
1704                         {
1705                                 if (!strcasecmp(com_token, "}"))
1706                                         break;
1707                                 if (!strcasecmp(com_token, "{"))
1708                                 {
1709                                         static q3shaderinfo_layer_t dummy;
1710                                         if (shader.numlayers < Q3SHADER_MAXLAYERS)
1711                                         {
1712                                                 layer = shader.layers + shader.numlayers++;
1713                                         }
1714                                         else
1715                                         {
1716                                                 // parse and process it anyway, just don't store it (so a map $lightmap or such stuff still is found)
1717                                                 memset(&dummy, 0, sizeof(dummy));
1718                                                 layer = &dummy;
1719                                         }
1720                                         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1721                                         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1722                                         layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1723                                         layer->blendfunc[0] = GL_ONE;
1724                                         layer->blendfunc[1] = GL_ZERO;
1725                                         while (COM_ParseToken_QuakeC(&text, false))
1726                                         {
1727                                                 if (!strcasecmp(com_token, "}"))
1728                                                         break;
1729                                                 if (!strcasecmp(com_token, "\n"))
1730                                                         continue;
1731                                                 numparameters = 0;
1732                                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1733                                                 {
1734                                                         if (j < TEXTURE_MAXFRAMES + 4)
1735                                                         {
1736                                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1737                                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1738                                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1739                                                                 else
1740                                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1741                                                                 numparameters = j + 1;
1742                                                         }
1743                                                         if (!COM_ParseToken_QuakeC(&text, true))
1744                                                                 break;
1745                                                 }
1746                                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1747                                                 //      parameter[j][0] = 0;
1748                                                 if (developer_insane.integer)
1749                                                 {
1750                                                         Con_DPrintf("%s %i: ", shader.name, shader.numlayers - 1);
1751                                                         for (j = 0;j < numparameters;j++)
1752                                                                 Con_DPrintf(" %s", parameter[j]);
1753                                                         Con_DPrint("\n");
1754                                                 }
1755                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
1756                                                 {
1757                                                         if (numparameters == 2)
1758                                                         {
1759                                                                 if (!strcasecmp(parameter[1], "add"))
1760                                                                 {
1761                                                                         layer->blendfunc[0] = GL_ONE;
1762                                                                         layer->blendfunc[1] = GL_ONE;
1763                                                                 }
1764                                                                 else if (!strcasecmp(parameter[1], "filter"))
1765                                                                 {
1766                                                                         layer->blendfunc[0] = GL_DST_COLOR;
1767                                                                         layer->blendfunc[1] = GL_ZERO;
1768                                                                 }
1769                                                                 else if (!strcasecmp(parameter[1], "blend"))
1770                                                                 {
1771                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1772                                                                         layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
1773                                                                 }
1774                                                         }
1775                                                         else if (numparameters == 3)
1776                                                         {
1777                                                                 int k;
1778                                                                 for (k = 0;k < 2;k++)
1779                                                                 {
1780                                                                         if (!strcasecmp(parameter[k+1], "GL_ONE"))
1781                                                                                 layer->blendfunc[k] = GL_ONE;
1782                                                                         else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
1783                                                                                 layer->blendfunc[k] = GL_ZERO;
1784                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
1785                                                                                 layer->blendfunc[k] = GL_SRC_COLOR;
1786                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
1787                                                                                 layer->blendfunc[k] = GL_SRC_ALPHA;
1788                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
1789                                                                                 layer->blendfunc[k] = GL_DST_COLOR;
1790                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
1791                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1792                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
1793                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
1794                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
1795                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
1796                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
1797                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
1798                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
1799                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1800                                                                         else
1801                                                                                 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
1802                                                                 }
1803                                                         }
1804                                                 }
1805                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
1806                                                         layer->alphatest = true;
1807                                                 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
1808                                                 {
1809                                                         if (!strcasecmp(parameter[0], "clampmap"))
1810                                                                 layer->clampmap = true;
1811                                                         layer->numframes = 1;
1812                                                         layer->framerate = 1;
1813                                                         layer->texturename = (char**)Mem_ExpandableArray_AllocRecord (
1814                                                                 &q3shader_data->char_ptrs);
1815                                                         layer->texturename[0] = Mem_strdup (q3shaders_mem, parameter[1]);
1816                                                         if (!strcasecmp(parameter[1], "$lightmap"))
1817                                                                 shader.lighting = true;
1818                                                 }
1819                                                 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
1820                                                 {
1821                                                         int i;
1822                                                         layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
1823                                                         layer->framerate = atof(parameter[1]);
1824                                                         layer->texturename = (char **) Mem_Alloc (q3shaders_mem, sizeof (char*) * layer->numframes);
1825                                                         for (i = 0;i < layer->numframes;i++)
1826                                                                 layer->texturename[i] = Mem_strdup (q3shaders_mem, parameter[i + 2]);
1827                                                 }
1828                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen"))
1829                                                 {
1830                                                         int i;
1831                                                         for (i = 0;i < numparameters - 2 && i < Q3RGBGEN_MAXPARMS;i++)
1832                                                                 layer->rgbgen.parms[i] = atof(parameter[i+2]);
1833                                                              if (!strcasecmp(parameter[1], "identity"))         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1834                                                         else if (!strcasecmp(parameter[1], "const"))            layer->rgbgen.rgbgen = Q3RGBGEN_CONST;
1835                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->rgbgen.rgbgen = Q3RGBGEN_ENTITY;
1836                                                         else if (!strcasecmp(parameter[1], "exactvertex"))      layer->rgbgen.rgbgen = Q3RGBGEN_EXACTVERTEX;
1837                                                         else if (!strcasecmp(parameter[1], "identitylighting")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITYLIGHTING;
1838                                                         else if (!strcasecmp(parameter[1], "lightingdiffuse"))  layer->rgbgen.rgbgen = Q3RGBGEN_LIGHTINGDIFFUSE;
1839                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSENTITY;
1840                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSVERTEX;
1841                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->rgbgen.rgbgen = Q3RGBGEN_VERTEX;
1842                                                         else if (!strcasecmp(parameter[1], "wave"))
1843                                                         {
1844                                                                 layer->rgbgen.rgbgen = Q3RGBGEN_WAVE;
1845                                                                 layer->rgbgen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1846                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1847                                                                         layer->rgbgen.waveparms[i] = atof(parameter[i+3]);
1848                                                         }
1849                                                         else Con_DPrintf("%s parsing warning: unknown rgbgen %s\n", search->filenames[fileindex], parameter[1]);
1850                                                 }
1851                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen"))
1852                                                 {
1853                                                         int i;
1854                                                         for (i = 0;i < numparameters - 2 && i < Q3ALPHAGEN_MAXPARMS;i++)
1855                                                                 layer->alphagen.parms[i] = atof(parameter[i+2]);
1856                                                              if (!strcasecmp(parameter[1], "identity"))         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1857                                                         else if (!strcasecmp(parameter[1], "const"))            layer->alphagen.alphagen = Q3ALPHAGEN_CONST;
1858                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->alphagen.alphagen = Q3ALPHAGEN_ENTITY;
1859                                                         else if (!strcasecmp(parameter[1], "lightingspecular")) layer->alphagen.alphagen = Q3ALPHAGEN_LIGHTINGSPECULAR;
1860                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSENTITY;
1861                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSVERTEX;
1862                                                         else if (!strcasecmp(parameter[1], "portal"))           layer->alphagen.alphagen = Q3ALPHAGEN_PORTAL;
1863                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->alphagen.alphagen = Q3ALPHAGEN_VERTEX;
1864                                                         else if (!strcasecmp(parameter[1], "wave"))
1865                                                         {
1866                                                                 layer->alphagen.alphagen = Q3ALPHAGEN_WAVE;
1867                                                                 layer->alphagen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1868                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1869                                                                         layer->alphagen.waveparms[i] = atof(parameter[i+3]);
1870                                                         }
1871                                                         else Con_DPrintf("%s parsing warning: unknown alphagen %s\n", search->filenames[fileindex], parameter[1]);
1872                                                 }
1873                                                 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "texgen") || !strcasecmp(parameter[0], "tcgen")))
1874                                                 {
1875                                                         int i;
1876                                                         // observed values: tcgen environment
1877                                                         // no other values have been observed in real shaders
1878                                                         for (i = 0;i < numparameters - 2 && i < Q3TCGEN_MAXPARMS;i++)
1879                                                                 layer->tcgen.parms[i] = atof(parameter[i+2]);
1880                                                              if (!strcasecmp(parameter[1], "base"))        layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1881                                                         else if (!strcasecmp(parameter[1], "texture"))     layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1882                                                         else if (!strcasecmp(parameter[1], "environment")) layer->tcgen.tcgen = Q3TCGEN_ENVIRONMENT;
1883                                                         else if (!strcasecmp(parameter[1], "lightmap"))    layer->tcgen.tcgen = Q3TCGEN_LIGHTMAP;
1884                                                         else if (!strcasecmp(parameter[1], "vector"))      layer->tcgen.tcgen = Q3TCGEN_VECTOR;
1885                                                         else Con_DPrintf("%s parsing warning: unknown tcgen mode %s\n", search->filenames[fileindex], parameter[1]);
1886                                                 }
1887                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "tcmod"))
1888                                                 {
1889                                                         int i, tcmodindex;
1890                                                         // observed values:
1891                                                         // tcmod rotate #
1892                                                         // tcmod scale # #
1893                                                         // tcmod scroll # #
1894                                                         // tcmod stretch sin # # # #
1895                                                         // tcmod stretch triangle # # # #
1896                                                         // tcmod transform # # # # # #
1897                                                         // tcmod turb # # # #
1898                                                         // tcmod turb sin # # # #  (this is bogus)
1899                                                         // no other values have been observed in real shaders
1900                                                         for (tcmodindex = 0;tcmodindex < Q3MAXTCMODS;tcmodindex++)
1901                                                                 if (!layer->tcmods[tcmodindex].tcmod)
1902                                                                         break;
1903                                                         if (tcmodindex < Q3MAXTCMODS)
1904                                                         {
1905                                                                 for (i = 0;i < numparameters - 2 && i < Q3TCMOD_MAXPARMS;i++)
1906                                                                         layer->tcmods[tcmodindex].parms[i] = atof(parameter[i+2]);
1907                                                                          if (!strcasecmp(parameter[1], "entitytranslate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ENTITYTRANSLATE;
1908                                                                 else if (!strcasecmp(parameter[1], "rotate"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ROTATE;
1909                                                                 else if (!strcasecmp(parameter[1], "scale"))           layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCALE;
1910                                                                 else if (!strcasecmp(parameter[1], "scroll"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCROLL;
1911                                                                 else if (!strcasecmp(parameter[1], "page"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_PAGE;
1912                                                                 else if (!strcasecmp(parameter[1], "stretch"))
1913                                                                 {
1914                                                                         layer->tcmods[tcmodindex].tcmod = Q3TCMOD_STRETCH;
1915                                                                         layer->tcmods[tcmodindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1916                                                                         for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1917                                                                                 layer->tcmods[tcmodindex].waveparms[i] = atof(parameter[i+3]);
1918                                                                 }
1919                                                                 else if (!strcasecmp(parameter[1], "transform"))       layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TRANSFORM;
1920                                                                 else if (!strcasecmp(parameter[1], "turb"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TURBULENT;
1921                                                                 else Con_DPrintf("%s parsing warning: unknown tcmod mode %s\n", search->filenames[fileindex], parameter[1]);
1922                                                         }
1923                                                         else
1924                                                                 Con_DPrintf("%s parsing warning: too many tcmods on one layer\n", search->filenames[fileindex]);
1925                                                 }
1926                                                 // break out a level if it was a closing brace (not using the character here to not confuse vim)
1927                                                 if (!strcasecmp(com_token, "}"))
1928                                                         break;
1929                                         }
1930                                         if (layer->rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE || layer->rgbgen.rgbgen == Q3RGBGEN_VERTEX)
1931                                                 shader.lighting = true;
1932                                         if (layer->alphagen.alphagen == Q3ALPHAGEN_VERTEX)
1933                                         {
1934                                                 if (layer == shader.layers + 0)
1935                                                 {
1936                                                         // vertex controlled transparency
1937                                                         shader.vertexalpha = true;
1938                                                 }
1939                                                 else
1940                                                 {
1941                                                         // multilayer terrain shader or similar
1942                                                         shader.textureblendalpha = true;
1943                                                 }
1944                                         }
1945                                         layer->texflags = TEXF_ALPHA;
1946                                         if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
1947                                                 layer->texflags |= TEXF_MIPMAP;
1948                                         if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
1949                                                 layer->texflags |= TEXF_PICMIP | TEXF_COMPRESS;
1950                                         if (layer->clampmap)
1951                                                 layer->texflags |= TEXF_CLAMP;
1952                                         continue;
1953                                 }
1954                                 numparameters = 0;
1955                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1956                                 {
1957                                         if (j < TEXTURE_MAXFRAMES + 4)
1958                                         {
1959                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1960                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1961                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1962                                                 else
1963                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1964                                                 numparameters = j + 1;
1965                                         }
1966                                         if (!COM_ParseToken_QuakeC(&text, true))
1967                                                 break;
1968                                 }
1969                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1970                                 //      parameter[j][0] = 0;
1971                                 if (fileindex == 0 && !strcasecmp(com_token, "}"))
1972                                         break;
1973                                 if (developer_insane.integer)
1974                                 {
1975                                         Con_DPrintf("%s: ", shader.name);
1976                                         for (j = 0;j < numparameters;j++)
1977                                                 Con_DPrintf(" %s", parameter[j]);
1978                                         Con_DPrint("\n");
1979                                 }
1980                                 if (numparameters < 1)
1981                                         continue;
1982                                 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
1983                                 {
1984                                         if (!strcasecmp(parameter[1], "alphashadow"))
1985                                                 shader.surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
1986                                         else if (!strcasecmp(parameter[1], "areaportal"))
1987                                                 shader.surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
1988                                         else if (!strcasecmp(parameter[1], "botclip"))
1989                                                 shader.surfaceparms |= Q3SURFACEPARM_BOTCLIP;
1990                                         else if (!strcasecmp(parameter[1], "clusterportal"))
1991                                                 shader.surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
1992                                         else if (!strcasecmp(parameter[1], "detail"))
1993                                                 shader.surfaceparms |= Q3SURFACEPARM_DETAIL;
1994                                         else if (!strcasecmp(parameter[1], "donotenter"))
1995                                                 shader.surfaceparms |= Q3SURFACEPARM_DONOTENTER;
1996                                         else if (!strcasecmp(parameter[1], "dust"))
1997                                                 shader.surfaceparms |= Q3SURFACEPARM_DUST;
1998                                         else if (!strcasecmp(parameter[1], "hint"))
1999                                                 shader.surfaceparms |= Q3SURFACEPARM_HINT;
2000                                         else if (!strcasecmp(parameter[1], "fog"))
2001                                                 shader.surfaceparms |= Q3SURFACEPARM_FOG;
2002                                         else if (!strcasecmp(parameter[1], "lava"))
2003                                                 shader.surfaceparms |= Q3SURFACEPARM_LAVA;
2004                                         else if (!strcasecmp(parameter[1], "lightfilter"))
2005                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
2006                                         else if (!strcasecmp(parameter[1], "lightgrid"))
2007                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
2008                                         else if (!strcasecmp(parameter[1], "metalsteps"))
2009                                                 shader.surfaceparms |= Q3SURFACEPARM_METALSTEPS;
2010                                         else if (!strcasecmp(parameter[1], "nodamage"))
2011                                                 shader.surfaceparms |= Q3SURFACEPARM_NODAMAGE;
2012                                         else if (!strcasecmp(parameter[1], "nodlight"))
2013                                                 shader.surfaceparms |= Q3SURFACEPARM_NODLIGHT;
2014                                         else if (!strcasecmp(parameter[1], "nodraw"))
2015                                                 shader.surfaceparms |= Q3SURFACEPARM_NODRAW;
2016                                         else if (!strcasecmp(parameter[1], "nodrop"))
2017                                                 shader.surfaceparms |= Q3SURFACEPARM_NODROP;
2018                                         else if (!strcasecmp(parameter[1], "noimpact"))
2019                                                 shader.surfaceparms |= Q3SURFACEPARM_NOIMPACT;
2020                                         else if (!strcasecmp(parameter[1], "nolightmap"))
2021                                                 shader.surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
2022                                         else if (!strcasecmp(parameter[1], "nomarks"))
2023                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMARKS;
2024                                         else if (!strcasecmp(parameter[1], "nomipmaps"))
2025                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2026                                         else if (!strcasecmp(parameter[1], "nonsolid"))
2027                                                 shader.surfaceparms |= Q3SURFACEPARM_NONSOLID;
2028                                         else if (!strcasecmp(parameter[1], "origin"))
2029                                                 shader.surfaceparms |= Q3SURFACEPARM_ORIGIN;
2030                                         else if (!strcasecmp(parameter[1], "playerclip"))
2031                                                 shader.surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
2032                                         else if (!strcasecmp(parameter[1], "sky"))
2033                                                 shader.surfaceparms |= Q3SURFACEPARM_SKY;
2034                                         else if (!strcasecmp(parameter[1], "slick"))
2035                                                 shader.surfaceparms |= Q3SURFACEPARM_SLICK;
2036                                         else if (!strcasecmp(parameter[1], "slime"))
2037                                                 shader.surfaceparms |= Q3SURFACEPARM_SLIME;
2038                                         else if (!strcasecmp(parameter[1], "structural"))
2039                                                 shader.surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
2040                                         else if (!strcasecmp(parameter[1], "trans"))
2041                                                 shader.surfaceparms |= Q3SURFACEPARM_TRANS;
2042                                         else if (!strcasecmp(parameter[1], "water"))
2043                                                 shader.surfaceparms |= Q3SURFACEPARM_WATER;
2044                                         else if (!strcasecmp(parameter[1], "pointlight"))
2045                                                 shader.surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
2046                                         else if (!strcasecmp(parameter[1], "antiportal"))
2047                                                 shader.surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
2048                                         else
2049                                         {
2050                                                 // try custom surfaceparms
2051                                                 for (j = 0; j < numcustsurfaceparms; j++)
2052                                                 {
2053                                                         if (!strcasecmp(custsurfaceparmnames[j], parameter[1]))
2054                                                         {
2055                                                                 shader.surfaceparms |= custsurfaceparms[j];
2056                                                                 break;
2057                                                         }
2058                                                 }
2059                                                 // failed all
2060                                                 if (j == numcustsurfaceparms)
2061                                                         Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
2062                                         }
2063                                 }
2064                                 else if (!strcasecmp(parameter[0], "dpshadow"))
2065                                         shader.dpshadow = true;
2066                                 else if (!strcasecmp(parameter[0], "dpnoshadow"))
2067                                         shader.dpnoshadow = true;
2068                                 else if (!strcasecmp(parameter[0], "dpreflectcube"))
2069                                         strlcpy(shader.dpreflectcube, parameter[1], sizeof(shader.dpreflectcube));
2070                                 else if (!strcasecmp(parameter[0], "dpmeshcollisions"))
2071                                         shader.dpmeshcollisions = true;
2072                                 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
2073                                 {
2074                                         // some q3 skies don't have the sky parm set
2075                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2076                                         strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2077                                 }
2078                                 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
2079                                 {
2080                                         // some q3 skies don't have the sky parm set
2081                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2082                                         if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
2083                                                 strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2084                                 }
2085                                 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
2086                                 {
2087                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
2088                                                 shader.textureflags |= Q3TEXTUREFLAG_TWOSIDED;
2089                                 }
2090                                 else if (!strcasecmp(parameter[0], "nomipmaps"))
2091                                         shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2092                                 else if (!strcasecmp(parameter[0], "nopicmip"))
2093                                         shader.textureflags |= Q3TEXTUREFLAG_NOPICMIP;
2094                                 else if (!strcasecmp(parameter[0], "polygonoffset"))
2095                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2096                                 else if (!strcasecmp(parameter[0], "dprefract") && numparameters >= 5)
2097                                 {
2098                                         shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
2099                                         shader.refractfactor = atof(parameter[1]);
2100                                         Vector4Set(shader.refractcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), 1);
2101                                 }
2102                                 else if (!strcasecmp(parameter[0], "dpreflect") && numparameters >= 6)
2103                                 {
2104                                         shader.textureflags |= Q3TEXTUREFLAG_REFLECTION;
2105                                         shader.reflectfactor = atof(parameter[1]);
2106                                         Vector4Set(shader.reflectcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), atof(parameter[5]));
2107                                 }
2108                                 else if (!strcasecmp(parameter[0], "dpcamera"))
2109                                 {
2110                                         shader.textureflags |= Q3TEXTUREFLAG_CAMERA;
2111                                 }
2112                                 else if (!strcasecmp(parameter[0], "dpwater") && numparameters >= 12)
2113                                 {
2114                                         shader.textureflags |= Q3TEXTUREFLAG_WATERSHADER;
2115                                         shader.reflectmin = atof(parameter[1]);
2116                                         shader.reflectmax = atof(parameter[2]);
2117                                         shader.refractfactor = atof(parameter[3]);
2118                                         shader.reflectfactor = atof(parameter[4]);
2119                                         Vector4Set(shader.refractcolor4f, atof(parameter[5]), atof(parameter[6]), atof(parameter[7]), 1);
2120                                         Vector4Set(shader.reflectcolor4f, atof(parameter[8]), atof(parameter[9]), atof(parameter[10]), 1);
2121                                         shader.r_water_wateralpha = atof(parameter[11]);
2122                                 }
2123                                 else if (!strcasecmp(parameter[0], "dpglossintensitymod") && numparameters >= 2)
2124                                 {
2125                                         shader.specularscalemod = atof(parameter[1]);
2126                                 }
2127                                 else if (!strcasecmp(parameter[0], "dpglossexponentmod") && numparameters >= 2)
2128                                 {
2129                                         shader.specularpowermod = atof(parameter[1]);
2130                                 }
2131                                 else if (!strcasecmp(parameter[0], "dpoffsetmapping") && numparameters >= 3)
2132                                 {
2133                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "off"))
2134                                                 shader.offsetmapping = OFFSETMAPPING_OFF;
2135                                         else if (!strcasecmp(parameter[1], "default"))
2136                                                 shader.offsetmapping = OFFSETMAPPING_DEFAULT;
2137                                         else if (!strcasecmp(parameter[1], "linear"))
2138                                                 shader.offsetmapping = OFFSETMAPPING_LINEAR;
2139                                         else if (!strcasecmp(parameter[1], "relief"))
2140                                                 shader.offsetmapping = OFFSETMAPPING_RELIEF;
2141                                         shader.offsetscale = atof(parameter[2]);
2142                                 }
2143                                 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
2144                                 {
2145                                         int i, deformindex;
2146                                         for (deformindex = 0;deformindex < Q3MAXDEFORMS;deformindex++)
2147                                                 if (!shader.deforms[deformindex].deform)
2148                                                         break;
2149                                         if (deformindex < Q3MAXDEFORMS)
2150                                         {
2151                                                 for (i = 0;i < numparameters - 2 && i < Q3DEFORM_MAXPARMS;i++)
2152                                                         shader.deforms[deformindex].parms[i] = atof(parameter[i+2]);
2153                                                      if (!strcasecmp(parameter[1], "projectionshadow")) shader.deforms[deformindex].deform = Q3DEFORM_PROJECTIONSHADOW;
2154                                                 else if (!strcasecmp(parameter[1], "autosprite"      )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE;
2155                                                 else if (!strcasecmp(parameter[1], "autosprite2"     )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE2;
2156                                                 else if (!strcasecmp(parameter[1], "text0"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT0;
2157                                                 else if (!strcasecmp(parameter[1], "text1"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT1;
2158                                                 else if (!strcasecmp(parameter[1], "text2"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT2;
2159                                                 else if (!strcasecmp(parameter[1], "text3"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT3;
2160                                                 else if (!strcasecmp(parameter[1], "text4"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT4;
2161                                                 else if (!strcasecmp(parameter[1], "text5"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT5;
2162                                                 else if (!strcasecmp(parameter[1], "text6"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT6;
2163                                                 else if (!strcasecmp(parameter[1], "text7"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT7;
2164                                                 else if (!strcasecmp(parameter[1], "bulge"           )) shader.deforms[deformindex].deform = Q3DEFORM_BULGE;
2165                                                 else if (!strcasecmp(parameter[1], "normal"          )) shader.deforms[deformindex].deform = Q3DEFORM_NORMAL;
2166                                                 else if (!strcasecmp(parameter[1], "wave"            ))
2167                                                 {
2168                                                         shader.deforms[deformindex].deform = Q3DEFORM_WAVE;
2169                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[3]);
2170                                                         for (i = 0;i < numparameters - 4 && i < Q3WAVEPARMS;i++)
2171                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+4]);
2172                                                 }
2173                                                 else if (!strcasecmp(parameter[1], "move"            ))
2174                                                 {
2175                                                         shader.deforms[deformindex].deform = Q3DEFORM_MOVE;
2176                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[5]);
2177                                                         for (i = 0;i < numparameters - 6 && i < Q3WAVEPARMS;i++)
2178                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+6]);
2179                                                 }
2180                                         }
2181                                 }
2182                         }
2183                         // pick the primary layer to render with
2184                         if (shader.numlayers)
2185                         {
2186                                 shader.backgroundlayer = -1;
2187                                 shader.primarylayer = 0;
2188                                 // if lightmap comes first this is definitely an ordinary texture
2189                                 // if the first two layers have the correct blendfuncs and use vertex alpha, it is a blended terrain shader
2190                                 if ((shader.layers[shader.primarylayer].texturename != NULL)
2191                                   && !strcasecmp(shader.layers[shader.primarylayer].texturename[0], "$lightmap"))
2192                                 {
2193                                         shader.backgroundlayer = -1;
2194                                         shader.primarylayer = 1;
2195                                 }
2196                                 else if (shader.numlayers >= 2
2197                                 &&   shader.layers[1].alphagen.alphagen == Q3ALPHAGEN_VERTEX
2198                                 &&  (shader.layers[0].blendfunc[0] == GL_ONE       && shader.layers[0].blendfunc[1] == GL_ZERO                && !shader.layers[0].alphatest)
2199                                 && ((shader.layers[1].blendfunc[0] == GL_SRC_ALPHA && shader.layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2200                                 ||  (shader.layers[1].blendfunc[0] == GL_ONE       && shader.layers[1].blendfunc[1] == GL_ZERO                &&  shader.layers[1].alphatest)))
2201                                 {
2202                                         // terrain blending or other effects
2203                                         shader.backgroundlayer = 0;
2204                                         shader.primarylayer = 1;
2205                                 }
2206                         }
2207                         // fix up multiple reflection types
2208                         if(shader.textureflags & Q3TEXTUREFLAG_WATERSHADER)
2209                                 shader.textureflags &= ~(Q3TEXTUREFLAG_REFRACTION | Q3TEXTUREFLAG_REFLECTION | Q3TEXTUREFLAG_CAMERA);
2210
2211                         Q3Shader_AddToHash (&shader);
2212                 }
2213                 Mem_Free(f);
2214         }
2215         FS_FreeSearch(search);
2216         // free custinfoparm values
2217         for (j = 0; j < numcustsurfaceparms; j++)
2218                 Mem_Free(custsurfaceparmnames[j]);
2219 }
2220
2221 q3shaderinfo_t *Mod_LookupQ3Shader(const char *name)
2222 {
2223         unsigned short hash;
2224         q3shader_hash_entry_t* entry;
2225         if (!q3shaders_mem)
2226                 Mod_LoadQ3Shaders();
2227         hash = CRC_Block_CaseInsensitive ((const unsigned char *)name, strlen (name));
2228         entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
2229         while (entry != NULL)
2230         {
2231                 if (strcasecmp (entry->shader.name, name) == 0)
2232                         return &entry->shader;
2233                 entry = entry->chain;
2234         }
2235         return NULL;
2236 }
2237
2238 qboolean Mod_LoadTextureFromQ3Shader(texture_t *texture, const char *name, qboolean warnmissing, qboolean fallback, int defaulttexflags)
2239 {
2240         int j;
2241         int texflagsmask, texflagsor;
2242         qboolean success = true;
2243         q3shaderinfo_t *shader;
2244         if (!name)
2245                 name = "";
2246         strlcpy(texture->name, name, sizeof(texture->name));
2247         shader = name[0] ? Mod_LookupQ3Shader(name) : NULL;
2248
2249         texflagsmask = ~0;
2250         if(!(defaulttexflags & TEXF_PICMIP))
2251                 texflagsmask &= ~TEXF_PICMIP;
2252         if(!(defaulttexflags & TEXF_COMPRESS))
2253                 texflagsmask &= ~TEXF_COMPRESS;
2254         texflagsor = 0;
2255         if(defaulttexflags & TEXF_ISWORLD)
2256                 texflagsor |= TEXF_ISWORLD;
2257         if(defaulttexflags & TEXF_ISSPRITE)
2258                 texflagsor |= TEXF_ISSPRITE;
2259         // unless later loaded from the shader
2260         texture->offsetmapping = (mod_q3shader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
2261         texture->offsetscale = 1;
2262         texture->specularscalemod = 1;
2263         texture->specularpowermod = 1;
2264         // WHEN ADDING DEFAULTS HERE, REMEMBER TO SYNC TO SHADER LOADING ABOVE
2265         // HERE, AND Q1BSP LOADING
2266         // JUST GREP FOR "specularscalemod = 1".
2267
2268         if (shader)
2269         {
2270                 if (developer_loading.integer)
2271                         Con_Printf("%s: loaded shader for %s\n", loadmodel->name, name);
2272                 texture->surfaceparms = shader->surfaceparms;
2273
2274                 // allow disabling of picmip or compression by defaulttexflags
2275                 texture->textureflags = (shader->textureflags & texflagsmask) | texflagsor;
2276
2277                 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
2278                 {
2279                         texture->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2280                         if (shader->skyboxname[0])
2281                         {
2282                                 // quake3 seems to append a _ to the skybox name, so this must do so as well
2283                                 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
2284                         }
2285                 }
2286                 else if ((texture->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
2287                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2288                 else
2289                         texture->basematerialflags = MATERIALFLAG_WALL;
2290
2291                 if (shader->layers[0].alphatest)
2292                         texture->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
2293                 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
2294                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
2295                 if (shader->textureflags & Q3TEXTUREFLAG_POLYGONOFFSET)
2296                         texture->biaspolygonoffset -= 2;
2297                 if (shader->textureflags & Q3TEXTUREFLAG_REFRACTION)
2298                         texture->basematerialflags |= MATERIALFLAG_REFRACTION;
2299                 if (shader->textureflags & Q3TEXTUREFLAG_REFLECTION)
2300                         texture->basematerialflags |= MATERIALFLAG_REFLECTION;
2301                 if (shader->textureflags & Q3TEXTUREFLAG_WATERSHADER)
2302                         texture->basematerialflags |= MATERIALFLAG_WATERSHADER;
2303                 if (shader->textureflags & Q3TEXTUREFLAG_CAMERA)
2304                         texture->basematerialflags |= MATERIALFLAG_CAMERA;
2305                 texture->customblendfunc[0] = GL_ONE;
2306                 texture->customblendfunc[1] = GL_ZERO;
2307                 if (shader->numlayers > 0)
2308                 {
2309                         texture->customblendfunc[0] = shader->layers[0].blendfunc[0];
2310                         texture->customblendfunc[1] = shader->layers[0].blendfunc[1];
2311 /*
2312 Q3 shader blendfuncs actually used in the game (* = supported by DP)
2313 * additive               GL_ONE GL_ONE
2314 additive weird         GL_ONE GL_SRC_ALPHA
2315 additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
2316 * alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
2317 alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
2318 brighten               GL_DST_COLOR GL_ONE
2319 brighten               GL_ONE GL_SRC_COLOR
2320 brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
2321 brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
2322 * modulate               GL_DST_COLOR GL_ZERO
2323 * modulate               GL_ZERO GL_SRC_COLOR
2324 modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
2325 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
2326 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
2327 * modulate x2            GL_DST_COLOR GL_SRC_COLOR
2328 * no blend               GL_ONE GL_ZERO
2329 nothing                GL_ZERO GL_ONE
2330 */
2331                         // if not opaque, figure out what blendfunc to use
2332                         if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
2333                         {
2334                                 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
2335                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2336                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
2337                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2338                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2339                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2340                                 else
2341                                         texture->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2342                         }
2343                 }
2344                 if (!shader->lighting)
2345                         texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
2346                 if (shader->primarylayer >= 0)
2347                 {
2348                         q3shaderinfo_layer_t* primarylayer = shader->layers + shader->primarylayer;
2349                         // copy over many primarylayer parameters
2350                         texture->rgbgen = primarylayer->rgbgen;
2351                         texture->alphagen = primarylayer->alphagen;
2352                         texture->tcgen = primarylayer->tcgen;
2353                         memcpy(texture->tcmods, primarylayer->tcmods, sizeof(texture->tcmods));
2354                         // load the textures
2355                         texture->numskinframes = primarylayer->numframes;
2356                         texture->skinframerate = primarylayer->framerate;
2357                         for (j = 0;j < primarylayer->numframes;j++)
2358                         {
2359                                 if(cls.state == ca_dedicated)
2360                                 {
2361                                         texture->skinframes[j] = NULL;
2362                                 }
2363                                 else if (!(texture->skinframes[j] = R_SkinFrame_LoadExternal(primarylayer->texturename[j], (primarylayer->texflags & texflagsmask) | texflagsor, false)))
2364                                 {
2365                                         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);
2366                                         texture->skinframes[j] = R_SkinFrame_LoadMissing();
2367                                 }
2368                         }
2369                 }
2370                 if (shader->backgroundlayer >= 0)
2371                 {
2372                         q3shaderinfo_layer_t* backgroundlayer = shader->layers + shader->backgroundlayer;
2373                         // copy over one secondarylayer parameter
2374                         memcpy(texture->backgroundtcmods, backgroundlayer->tcmods, sizeof(texture->backgroundtcmods));
2375                         // load the textures
2376                         texture->backgroundnumskinframes = backgroundlayer->numframes;
2377                         texture->backgroundskinframerate = backgroundlayer->framerate;
2378                         for (j = 0;j < backgroundlayer->numframes;j++)
2379                         {
2380                                 if(cls.state == ca_dedicated)
2381                                 {
2382                                         texture->skinframes[j] = NULL;
2383                                 }
2384                                 else if (!(texture->backgroundskinframes[j] = R_SkinFrame_LoadExternal(backgroundlayer->texturename[j], (backgroundlayer->texflags & texflagsmask) | texflagsor, false)))
2385                                 {
2386                                         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);
2387                                         texture->backgroundskinframes[j] = R_SkinFrame_LoadMissing();
2388                                 }
2389                         }
2390                 }
2391                 if (shader->dpshadow)
2392                         texture->basematerialflags &= ~MATERIALFLAG_NOSHADOW;
2393                 if (shader->dpnoshadow)
2394                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW;
2395                 memcpy(texture->deforms, shader->deforms, sizeof(texture->deforms));
2396                 texture->reflectmin = shader->reflectmin;
2397                 texture->reflectmax = shader->reflectmax;
2398                 texture->refractfactor = shader->refractfactor;
2399                 Vector4Copy(shader->refractcolor4f, texture->refractcolor4f);
2400                 texture->reflectfactor = shader->reflectfactor;
2401                 Vector4Copy(shader->reflectcolor4f, texture->reflectcolor4f);
2402                 texture->r_water_wateralpha = shader->r_water_wateralpha;
2403                 texture->offsetmapping = shader->offsetmapping;
2404                 texture->offsetscale = shader->offsetscale;
2405                 texture->specularscalemod = shader->specularscalemod;
2406                 texture->specularpowermod = shader->specularpowermod;
2407                 if (shader->dpreflectcube[0])
2408                         texture->reflectcubetexture = R_GetCubemap(shader->dpreflectcube);
2409
2410                 // set up default supercontents (on q3bsp this is overridden by the q3bsp loader)
2411                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2412                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents  = SUPERCONTENTS_LAVA         ;
2413                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents  = SUPERCONTENTS_SLIME        ;
2414                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents  = SUPERCONTENTS_WATER        ;
2415                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents  = 0                          ;
2416                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents  = SUPERCONTENTS_PLAYERCLIP   ;
2417                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents  = SUPERCONTENTS_MONSTERCLIP  ;
2418                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents  = SUPERCONTENTS_SKY          ;
2419
2420         //      if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->supercontents |= SUPERCONTENTS_ALPHASHADOW  ;
2421         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->supercontents |= SUPERCONTENTS_AREAPORTAL   ;
2422         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->supercontents |= SUPERCONTENTS_CLUSTERPORTAL;
2423         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->supercontents |= SUPERCONTENTS_DETAIL       ;
2424                 if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->supercontents |= SUPERCONTENTS_DONOTENTER   ;
2425         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->supercontents |= SUPERCONTENTS_FOG          ;
2426                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents |= SUPERCONTENTS_LAVA         ;
2427         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->supercontents |= SUPERCONTENTS_LIGHTFILTER  ;
2428         //      if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->supercontents |= SUPERCONTENTS_METALSTEPS   ;
2429         //      if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->supercontents |= SUPERCONTENTS_NODAMAGE     ;
2430         //      if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->supercontents |= SUPERCONTENTS_NODLIGHT     ;
2431         //      if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->supercontents |= SUPERCONTENTS_NODRAW       ;
2432                 if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->supercontents |= SUPERCONTENTS_NODROP       ;
2433         //      if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->supercontents |= SUPERCONTENTS_NOIMPACT     ;
2434         //      if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->supercontents |= SUPERCONTENTS_NOLIGHTMAP   ;
2435         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->supercontents |= SUPERCONTENTS_NOMARKS      ;
2436         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->supercontents |= SUPERCONTENTS_NOMIPMAPS    ;
2437                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents &=~SUPERCONTENTS_SOLID        ;
2438         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->supercontents |= SUPERCONTENTS_ORIGIN       ;
2439                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents |= SUPERCONTENTS_PLAYERCLIP   ;
2440                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents |= SUPERCONTENTS_SKY          ;
2441         //      if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->supercontents |= SUPERCONTENTS_SLICK        ;
2442                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents |= SUPERCONTENTS_SLIME        ;
2443         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->supercontents |= SUPERCONTENTS_STRUCTURAL   ;
2444         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->supercontents |= SUPERCONTENTS_TRANS        ;
2445                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents |= SUPERCONTENTS_WATER        ;
2446         //      if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->supercontents |= SUPERCONTENTS_POINTLIGHT   ;
2447         //      if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->supercontents |= SUPERCONTENTS_HINT         ;
2448         //      if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->supercontents |= SUPERCONTENTS_DUST         ;
2449                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents |= SUPERCONTENTS_BOTCLIP      | SUPERCONTENTS_MONSTERCLIP;
2450         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->supercontents |= SUPERCONTENTS_LIGHTGRID    ;
2451         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->supercontents |= SUPERCONTENTS_ANTIPORTAL   ;
2452
2453                 if (shader->dpmeshcollisions)
2454                         texture->basematerialflags |= MATERIALFLAG_MESHCOLLISIONS;
2455         }
2456         else if (!strcmp(texture->name, "noshader") || !texture->name[0])
2457         {
2458                 if (developer_extra.integer)
2459                         Con_DPrintf("^1%s:^7 using fallback noshader material for ^3\"%s\"\n", loadmodel->name, name);
2460                 texture->surfaceparms = 0;
2461                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2462         }
2463         else if (!strcmp(texture->name, "common/nodraw") || !strcmp(texture->name, "textures/common/nodraw"))
2464         {
2465                 if (developer_extra.integer)
2466                         Con_DPrintf("^1%s:^7 using fallback nodraw material for ^3\"%s\"\n", loadmodel->name, name);
2467                 texture->surfaceparms = 0;
2468                 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2469                 texture->supercontents = SUPERCONTENTS_SOLID;
2470         }
2471         else
2472         {
2473                 if (developer_extra.integer)
2474                         Con_DPrintf("^1%s:^7 No shader found for texture ^3\"%s\"\n", loadmodel->name, texture->name);
2475                 texture->surfaceparms = 0;
2476                 if (texture->surfaceflags & Q3SURFACEFLAG_NODRAW)
2477                 {
2478                         texture->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2479                         texture->supercontents = SUPERCONTENTS_SOLID;
2480                 }
2481                 else if (texture->surfaceflags & Q3SURFACEFLAG_SKY)
2482                 {
2483                         texture->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2484                         texture->supercontents = SUPERCONTENTS_SKY;
2485                 }
2486                 else
2487                 {
2488                         texture->basematerialflags |= MATERIALFLAG_WALL;
2489                         texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2490                 }
2491                 texture->numskinframes = 1;
2492                 if(cls.state == ca_dedicated)
2493                 {
2494                         texture->skinframes[0] = NULL;
2495                 }
2496                 else
2497                 {
2498                         if (fallback)
2499                         {
2500                                 if ((texture->skinframes[0] = R_SkinFrame_LoadExternal(texture->name, defaulttexflags, false)))
2501                                 {
2502                                         if(texture->skinframes[0]->hasalpha)
2503                                                 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2504                                 }
2505                                 else
2506                                         success = false;
2507                         }
2508                         else
2509                                 success = false;
2510                         if (!success && warnmissing)
2511                                 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"\n", loadmodel->name, texture->name);
2512                 }
2513         }
2514         // init the animation variables
2515         texture->currentframe = texture;
2516         if (texture->numskinframes < 1)
2517                 texture->numskinframes = 1;
2518         if (!texture->skinframes[0])
2519                 texture->skinframes[0] = R_SkinFrame_LoadMissing();
2520         texture->currentskinframe = texture->skinframes[0];
2521         texture->backgroundcurrentskinframe = texture->backgroundskinframes[0];
2522         return success;
2523 }
2524
2525 skinfile_t *Mod_LoadSkinFiles(void)
2526 {
2527         int i, words, line, wordsoverflow;
2528         char *text;
2529         const char *data;
2530         skinfile_t *skinfile = NULL, *first = NULL;
2531         skinfileitem_t *skinfileitem;
2532         char word[10][MAX_QPATH];
2533
2534 /*
2535 sample file:
2536 U_bodyBox,models/players/Legoman/BikerA2.tga
2537 U_RArm,models/players/Legoman/BikerA1.tga
2538 U_LArm,models/players/Legoman/BikerA1.tga
2539 U_armor,common/nodraw
2540 U_sword,common/nodraw
2541 U_shield,common/nodraw
2542 U_homb,common/nodraw
2543 U_backpack,common/nodraw
2544 U_colcha,common/nodraw
2545 tag_head,
2546 tag_weapon,
2547 tag_torso,
2548 */
2549         memset(word, 0, sizeof(word));
2550         for (i = 0;i < 256 && (data = text = (char *)FS_LoadFile(va("%s_%i.skin", loadmodel->name, i), tempmempool, true, NULL));i++)
2551         {
2552                 // If it's the first file we parse
2553                 if (skinfile == NULL)
2554                 {
2555                         skinfile = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2556                         first = skinfile;
2557                 }
2558                 else
2559                 {
2560                         skinfile->next = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2561                         skinfile = skinfile->next;
2562                 }
2563                 skinfile->next = NULL;
2564
2565                 for(line = 0;;line++)
2566                 {
2567                         // parse line
2568                         if (!COM_ParseToken_QuakeC(&data, true))
2569                                 break;
2570                         if (!strcmp(com_token, "\n"))
2571                                 continue;
2572                         words = 0;
2573                         wordsoverflow = false;
2574                         do
2575                         {
2576                                 if (words < 10)
2577                                         strlcpy(word[words++], com_token, sizeof (word[0]));
2578                                 else
2579                                         wordsoverflow = true;
2580                         }
2581                         while (COM_ParseToken_QuakeC(&data, true) && strcmp(com_token, "\n"));
2582                         if (wordsoverflow)
2583                         {
2584                                 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);
2585                                 continue;
2586                         }
2587                         // words is always >= 1
2588                         if (!strcmp(word[0], "replace"))
2589                         {
2590                                 if (words == 3)
2591                                 {
2592                                         if (developer_loading.integer)
2593                                                 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
2594                                         skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2595                                         skinfileitem->next = skinfile->items;
2596                                         skinfile->items = skinfileitem;
2597                                         strlcpy (skinfileitem->name, word[1], sizeof (skinfileitem->name));
2598                                         strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2599                                 }
2600                                 else
2601                                         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]);
2602                         }
2603                         else if (words >= 2 && !strncmp(word[0], "tag_", 4))
2604                         {
2605                                 // tag name, like "tag_weapon,"
2606                                 // not used for anything (not even in Quake3)
2607                         }
2608                         else if (words >= 2 && !strcmp(word[1], ","))
2609                         {
2610                                 // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
2611                                 if (developer_loading.integer)
2612                                         Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
2613                                 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2614                                 skinfileitem->next = skinfile->items;
2615                                 skinfile->items = skinfileitem;
2616                                 strlcpy (skinfileitem->name, word[0], sizeof (skinfileitem->name));
2617                                 strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2618                         }
2619                         else
2620                                 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);
2621                 }
2622                 Mem_Free(text);
2623         }
2624         if (i)
2625                 loadmodel->numskins = i;
2626         return first;
2627 }
2628
2629 void Mod_FreeSkinFiles(skinfile_t *skinfile)
2630 {
2631         skinfile_t *next;
2632         skinfileitem_t *skinfileitem, *nextitem;
2633         for (;skinfile;skinfile = next)
2634         {
2635                 next = skinfile->next;
2636                 for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
2637                 {
2638                         nextitem = skinfileitem->next;
2639                         Mem_Free(skinfileitem);
2640                 }
2641                 Mem_Free(skinfile);
2642         }
2643 }
2644
2645 int Mod_CountSkinFiles(skinfile_t *skinfile)
2646 {
2647         int i;
2648         for (i = 0;skinfile;skinfile = skinfile->next, i++);
2649         return i;
2650 }
2651
2652 void Mod_SnapVertices(int numcomponents, int numvertices, float *vertices, float snap)
2653 {
2654         int i;
2655         double isnap = 1.0 / snap;
2656         for (i = 0;i < numvertices*numcomponents;i++)
2657                 vertices[i] = floor(vertices[i]*isnap)*snap;
2658 }
2659
2660 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
2661 {
2662         int i, outtriangles;
2663         float edgedir1[3], edgedir2[3], temp[3];
2664         // a degenerate triangle is one with no width (thickness, surface area)
2665         // these are characterized by having all 3 points colinear (along a line)
2666         // or having two points identical
2667         // the simplest check is to calculate the triangle's area
2668         for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
2669         {
2670                 // calculate first edge
2671                 VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir1);
2672                 VectorSubtract(vertex3f + inelement3i[2] * 3, vertex3f + inelement3i[0] * 3, edgedir2);
2673                 CrossProduct(edgedir1, edgedir2, temp);
2674                 if (VectorLength2(temp) < 0.001f)
2675                         continue; // degenerate triangle (no area)
2676                 // valid triangle (has area)
2677                 VectorCopy(inelement3i, outelement3i);
2678                 outelement3i += 3;
2679                 outtriangles++;
2680         }
2681         return outtriangles;
2682 }
2683
2684 void Mod_VertexRangeFromElements(int numelements, const int *elements, int *firstvertexpointer, int *lastvertexpointer)
2685 {
2686         int i, e;
2687         int firstvertex, lastvertex;
2688         if (numelements > 0 && elements)
2689         {
2690                 firstvertex = lastvertex = elements[0];
2691                 for (i = 1;i < numelements;i++)
2692                 {
2693                         e = elements[i];
2694                         firstvertex = min(firstvertex, e);
2695                         lastvertex = max(lastvertex, e);
2696                 }
2697         }
2698         else
2699                 firstvertex = lastvertex = 0;
2700         if (firstvertexpointer)
2701                 *firstvertexpointer = firstvertex;
2702         if (lastvertexpointer)
2703                 *lastvertexpointer = lastvertex;
2704 }
2705
2706 void Mod_MakeSortedSurfaces(dp_model_t *mod)
2707 {
2708         // make an optimal set of texture-sorted batches to draw...
2709         int j, t;
2710         int *firstsurfacefortexture;
2711         int *numsurfacesfortexture;
2712         if (!mod->sortedmodelsurfaces)
2713                 mod->sortedmodelsurfaces = (int *) Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->sortedmodelsurfaces));
2714         firstsurfacefortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*firstsurfacefortexture));
2715         numsurfacesfortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*numsurfacesfortexture));
2716         memset(numsurfacesfortexture, 0, mod->num_textures * sizeof(*numsurfacesfortexture));
2717         for (j = 0;j < mod->nummodelsurfaces;j++)
2718         {
2719                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2720                 int t = (int)(surface->texture - mod->data_textures);
2721                 numsurfacesfortexture[t]++;
2722         }
2723         j = 0;
2724         for (t = 0;t < mod->num_textures;t++)
2725         {
2726                 firstsurfacefortexture[t] = j;
2727                 j += numsurfacesfortexture[t];
2728         }
2729         for (j = 0;j < mod->nummodelsurfaces;j++)
2730         {
2731                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2732                 int t = (int)(surface->texture - mod->data_textures);
2733                 mod->sortedmodelsurfaces[firstsurfacefortexture[t]++] = j + mod->firstmodelsurface;
2734         }
2735         Mem_Free(firstsurfacefortexture);
2736         Mem_Free(numsurfacesfortexture);
2737 }
2738
2739 void Mod_BuildVBOs(void)
2740 {
2741         if (!loadmodel->surfmesh.num_vertices)
2742                 return;
2743
2744         if (gl_paranoid.integer && loadmodel->surfmesh.data_element3s && loadmodel->surfmesh.data_element3i)
2745         {
2746                 int i;
2747                 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2748                 {
2749                         if (loadmodel->surfmesh.data_element3s[i] != loadmodel->surfmesh.data_element3i[i])
2750                         {
2751                                 Con_Printf("Mod_BuildVBOs: element %u is incorrect (%u should be %u)\n", i, loadmodel->surfmesh.data_element3s[i], loadmodel->surfmesh.data_element3i[i]);
2752                                 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2753                         }
2754                 }
2755         }
2756
2757         // build r_vertexmesh_t array
2758         // (compressed interleaved array for faster rendering)
2759         if (!loadmodel->surfmesh.vertexmesh)
2760         {
2761                 int vertexindex;
2762                 int numvertices = loadmodel->surfmesh.num_vertices;
2763                 r_vertexmesh_t *vertexmesh;
2764                 loadmodel->surfmesh.vertexmesh = vertexmesh = (r_vertexmesh_t*)Mem_Alloc(loadmodel->mempool, numvertices * sizeof(*loadmodel->surfmesh.vertexmesh));
2765                 for (vertexindex = 0;vertexindex < numvertices;vertexindex++, vertexmesh++)
2766                 {
2767                         VectorCopy(loadmodel->surfmesh.data_vertex3f + 3*vertexindex, vertexmesh->vertex3f);
2768                         VectorScale(loadmodel->surfmesh.data_svector3f + 3*vertexindex, 1.0f, vertexmesh->svector3f);
2769                         VectorScale(loadmodel->surfmesh.data_tvector3f + 3*vertexindex, 1.0f, vertexmesh->tvector3f);
2770                         VectorScale(loadmodel->surfmesh.data_normal3f + 3*vertexindex, 1.0f, vertexmesh->normal3f);
2771                         if (loadmodel->surfmesh.data_lightmapcolor4f)
2772                                 Vector4Scale(loadmodel->surfmesh.data_lightmapcolor4f + 4*vertexindex, 255.0f, vertexmesh->color4ub);
2773                         Vector2Copy(loadmodel->surfmesh.data_texcoordtexture2f + 2*vertexindex, vertexmesh->texcoordtexture2f);
2774                         if (loadmodel->surfmesh.data_texcoordlightmap2f)
2775                                 Vector2Scale(loadmodel->surfmesh.data_texcoordlightmap2f + 2*vertexindex, 1.0f, vertexmesh->texcoordlightmap2f);
2776                 }
2777         }
2778
2779         // build r_vertexposition_t array
2780         if (!loadmodel->surfmesh.vertexposition)
2781         {
2782                 int vertexindex;
2783                 int numvertices = loadmodel->surfmesh.num_vertices;
2784                 r_vertexposition_t *vertexposition;
2785                 loadmodel->surfmesh.vertexposition = vertexposition = (r_vertexposition_t*)Mem_Alloc(loadmodel->mempool, numvertices * sizeof(*loadmodel->surfmesh.vertexposition));
2786                 for (vertexindex = 0;vertexindex < numvertices;vertexindex++, vertexposition++)
2787                         VectorCopy(loadmodel->surfmesh.data_vertex3f + 3*vertexindex, vertexposition->vertex3f);
2788         }
2789
2790         // upload r_vertexmesh_t array as a buffer
2791         if (loadmodel->surfmesh.vertexmesh && !loadmodel->surfmesh.vertexmeshbuffer)
2792                 loadmodel->surfmesh.vertexmeshbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.vertexmesh, loadmodel->surfmesh.num_vertices * sizeof(*loadmodel->surfmesh.vertexmesh), loadmodel->name, false, false, false);
2793
2794         // upload r_vertexposition_t array as a buffer
2795         if (loadmodel->surfmesh.vertexposition && !loadmodel->surfmesh.vertexpositionbuffer)
2796                 loadmodel->surfmesh.vertexpositionbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.vertexposition, loadmodel->surfmesh.num_vertices * sizeof(*loadmodel->surfmesh.vertexposition), loadmodel->name, false, false, false);
2797
2798         // upload short indices as a buffer
2799         if (loadmodel->surfmesh.data_element3s && !loadmodel->surfmesh.data_element3s_indexbuffer)
2800                 loadmodel->surfmesh.data_element3s_indexbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_element3s, loadmodel->surfmesh.num_triangles * sizeof(short[3]), loadmodel->name, true, false, true);
2801
2802         // upload int indices as a buffer
2803         if (loadmodel->surfmesh.data_element3i && !loadmodel->surfmesh.data_element3i_indexbuffer && !loadmodel->surfmesh.data_element3s)
2804                 loadmodel->surfmesh.data_element3i_indexbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles * sizeof(int[3]), loadmodel->name, true, false, false);
2805
2806         // only build a vbo if one has not already been created (this is important for brush models which load specially)
2807         // vertex buffer is several arrays and we put them in the same buffer
2808         //
2809         // is this wise?  the texcoordtexture2f array is used with dynamic
2810         // vertex/svector/tvector/normal when rendering animated models, on the
2811         // other hand animated models don't use a lot of vertices anyway...
2812         if (!loadmodel->surfmesh.vbo_vertexbuffer)
2813         {
2814                 size_t size;
2815                 unsigned char *mem;
2816                 size = 0;
2817                 loadmodel->surfmesh.vbooffset_vertex3f           = size;if (loadmodel->surfmesh.data_vertex3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2818                 loadmodel->surfmesh.vbooffset_svector3f          = size;if (loadmodel->surfmesh.data_svector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2819                 loadmodel->surfmesh.vbooffset_tvector3f          = size;if (loadmodel->surfmesh.data_tvector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2820                 loadmodel->surfmesh.vbooffset_normal3f           = size;if (loadmodel->surfmesh.data_normal3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
2821                 loadmodel->surfmesh.vbooffset_texcoordtexture2f  = size;if (loadmodel->surfmesh.data_texcoordtexture2f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2822                 loadmodel->surfmesh.vbooffset_texcoordlightmap2f = size;if (loadmodel->surfmesh.data_texcoordlightmap2f) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
2823                 loadmodel->surfmesh.vbooffset_lightmapcolor4f    = size;if (loadmodel->surfmesh.data_lightmapcolor4f   ) size += loadmodel->surfmesh.num_vertices * sizeof(float[4]);
2824                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
2825                 if (loadmodel->surfmesh.data_vertex3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_vertex3f          , loadmodel->surfmesh.data_vertex3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2826                 if (loadmodel->surfmesh.data_svector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_svector3f         , loadmodel->surfmesh.data_svector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2827                 if (loadmodel->surfmesh.data_tvector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_tvector3f         , loadmodel->surfmesh.data_tvector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2828                 if (loadmodel->surfmesh.data_normal3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_normal3f          , loadmodel->surfmesh.data_normal3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
2829                 if (loadmodel->surfmesh.data_texcoordtexture2f ) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordtexture2f , loadmodel->surfmesh.data_texcoordtexture2f , loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2830                 if (loadmodel->surfmesh.data_texcoordlightmap2f) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordlightmap2f, loadmodel->surfmesh.data_texcoordlightmap2f, loadmodel->surfmesh.num_vertices * sizeof(float[2]));
2831                 if (loadmodel->surfmesh.data_lightmapcolor4f   ) memcpy(mem + loadmodel->surfmesh.vbooffset_lightmapcolor4f   , loadmodel->surfmesh.data_lightmapcolor4f   , loadmodel->surfmesh.num_vertices * sizeof(float[4]));
2832                 loadmodel->surfmesh.vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, loadmodel->name, false, false, false);
2833                 Mem_Free(mem);
2834         }
2835 }
2836
2837 static void Mod_Decompile_OBJ(dp_model_t *model, const char *filename, const char *mtlfilename, const char *originalfilename)
2838 {
2839         int submodelindex, vertexindex, surfaceindex, triangleindex, textureindex, countvertices = 0, countsurfaces = 0, countfaces = 0, counttextures = 0;
2840         int a, b, c;
2841         const char *texname;
2842         const int *e;
2843         const float *v, *vn, *vt;
2844         size_t l;
2845         size_t outbufferpos = 0;
2846         size_t outbuffermax = 0x100000;
2847         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
2848         const msurface_t *surface;
2849         const int maxtextures = 256;
2850         char *texturenames = (char *) Z_Malloc(maxtextures * MAX_QPATH);
2851         dp_model_t *submodel;
2852
2853         // construct the mtllib file
2854         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "# mtllib for %s exported by darkplaces engine\n", originalfilename);
2855         if (l > 0)
2856                 outbufferpos += l;
2857         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
2858         {
2859                 countsurfaces++;
2860                 countvertices += surface->num_vertices;
2861                 countfaces += surface->num_triangles;
2862                 texname = (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default";
2863                 for (textureindex = 0;textureindex < counttextures;textureindex++)
2864                         if (!strcmp(texturenames + textureindex * MAX_QPATH, texname))
2865                                 break;
2866                 if (textureindex < counttextures)
2867                         continue; // already wrote this material entry
2868                 if (textureindex >= maxtextures)
2869                         continue; // just a precaution
2870                 textureindex = counttextures++;
2871                 strlcpy(texturenames + textureindex * MAX_QPATH, texname, MAX_QPATH);
2872                 if (outbufferpos >= outbuffermax >> 1)
2873                 {
2874                         outbuffermax *= 2;
2875                         oldbuffer = outbuffer;
2876                         outbuffer = (char *) Z_Malloc(outbuffermax);
2877                         memcpy(outbuffer, oldbuffer, outbufferpos);
2878                         Z_Free(oldbuffer);
2879                 }
2880                 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");
2881                 if (l > 0)
2882                         outbufferpos += l;
2883         }
2884
2885         // write the mtllib file
2886         FS_WriteFile(mtlfilename, outbuffer, outbufferpos);
2887
2888         // construct the obj file
2889         outbufferpos = 0;
2890         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);
2891         if (l > 0)
2892                 outbufferpos += l;
2893
2894         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)
2895         {
2896                 if (outbufferpos >= outbuffermax >> 1)
2897                 {
2898                         outbuffermax *= 2;
2899                         oldbuffer = outbuffer;
2900                         outbuffer = (char *) Z_Malloc(outbuffermax);
2901                         memcpy(outbuffer, oldbuffer, outbufferpos);
2902                         Z_Free(oldbuffer);
2903                 }
2904                 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]);
2905                 if (l > 0)
2906                         outbufferpos += l;
2907         }
2908
2909         for (submodelindex = 0;submodelindex < max(1, model->brush.numsubmodels);submodelindex++)
2910         {
2911                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "o %i\n", submodelindex);
2912                 if (l > 0)
2913                         outbufferpos += l;
2914                 submodel = model->brush.numsubmodels ? model->brush.submodels[submodelindex] : model;
2915                 for (surfaceindex = 0;surfaceindex < submodel->nummodelsurfaces;surfaceindex++)
2916                 {
2917                         surface = model->data_surfaces + submodel->sortedmodelsurfaces[surfaceindex];
2918                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "usemtl %s\n", (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default");
2919                         if (l > 0)
2920                                 outbufferpos += l;
2921                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
2922                         {
2923                                 if (outbufferpos >= outbuffermax >> 1)
2924                                 {
2925                                         outbuffermax *= 2;
2926                                         oldbuffer = outbuffer;
2927                                         outbuffer = (char *) Z_Malloc(outbuffermax);
2928                                         memcpy(outbuffer, oldbuffer, outbufferpos);
2929                                         Z_Free(oldbuffer);
2930                                 }
2931                                 a = e[0]+1;
2932                                 b = e[1]+1;
2933                                 c = e[2]+1;
2934                                 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);
2935                                 if (l > 0)
2936                                         outbufferpos += l;
2937                         }
2938                 }
2939         }
2940
2941         // write the obj file
2942         FS_WriteFile(filename, outbuffer, outbufferpos);
2943
2944         // clean up
2945         Z_Free(outbuffer);
2946         Z_Free(texturenames);
2947
2948         // print some stats
2949         Con_Printf("Wrote %s (%i bytes, %i vertices, %i faces, %i surfaces with %i distinct textures)\n", filename, (int)outbufferpos, countvertices, countfaces, countsurfaces, counttextures);
2950 }
2951
2952 static void Mod_Decompile_SMD(dp_model_t *model, const char *filename, int firstpose, int numposes, qboolean writetriangles)
2953 {
2954         int countnodes = 0, counttriangles = 0, countframes = 0;
2955         int surfaceindex;
2956         int triangleindex;
2957         int transformindex;
2958         int poseindex;
2959         int cornerindex;
2960         const int *e;
2961         size_t l;
2962         size_t outbufferpos = 0;
2963         size_t outbuffermax = 0x100000;
2964         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
2965         const msurface_t *surface;
2966         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "version 1\nnodes\n");
2967         if (l > 0)
2968                 outbufferpos += l;
2969         for (transformindex = 0;transformindex < model->num_bones;transformindex++)
2970         {
2971                 if (outbufferpos >= outbuffermax >> 1)
2972                 {
2973                         outbuffermax *= 2;
2974                         oldbuffer = outbuffer;
2975                         outbuffer = (char *) Z_Malloc(outbuffermax);
2976                         memcpy(outbuffer, oldbuffer, outbufferpos);
2977                         Z_Free(oldbuffer);
2978                 }
2979                 countnodes++;
2980                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i \"%s\" %3i\n", transformindex, model->data_bones[transformindex].name, model->data_bones[transformindex].parent);
2981                 if (l > 0)
2982                         outbufferpos += l;
2983         }
2984         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\nskeleton\n");
2985         if (l > 0)
2986                 outbufferpos += l;
2987         for (poseindex = 0;poseindex < numposes;poseindex++)
2988         {
2989                 countframes++;
2990                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "time %i\n", poseindex);
2991                 if (l > 0)
2992                         outbufferpos += l;
2993                 for (transformindex = 0;transformindex < model->num_bones;transformindex++)
2994                 {
2995                         float angles[3];
2996                         float mtest[4][3];
2997                         matrix4x4_t posematrix;
2998                         if (outbufferpos >= outbuffermax >> 1)
2999                         {
3000                                 outbuffermax *= 2;
3001                                 oldbuffer = outbuffer;
3002                                 outbuffer = (char *) Z_Malloc(outbuffermax);
3003                                 memcpy(outbuffer, oldbuffer, outbufferpos);
3004                                 Z_Free(oldbuffer);
3005                         }
3006
3007                         // strangely the smd angles are for a transposed matrix, so we
3008                         // have to generate a transposed matrix, then convert that...
3009                         Matrix4x4_FromBonePose6s(&posematrix, model->num_posescale, model->data_poses6s + 6*(model->num_bones * poseindex + transformindex));
3010                         Matrix4x4_ToArray12FloatGL(&posematrix, mtest[0]);
3011                         AnglesFromVectors(angles, mtest[0], mtest[2], false);
3012                         if (angles[0] >= 180) angles[0] -= 360;
3013                         if (angles[1] >= 180) angles[1] -= 360;
3014                         if (angles[2] >= 180) angles[2] -= 360;
3015
3016 #if 0
3017 {
3018                         float a = DEG2RAD(angles[ROLL]);
3019                         float b = DEG2RAD(angles[PITCH]);
3020                         float c = DEG2RAD(angles[YAW]);
3021                         float cy, sy, cp, sp, cr, sr;
3022                         float test[4][3];
3023                         // smd matrix construction, for comparing
3024                         sy = sin(c);
3025                         cy = cos(c);
3026                         sp = sin(b);
3027                         cp = cos(b);
3028                         sr = sin(a);
3029                         cr = cos(a);
3030
3031                         test[0][0] = cp*cy;
3032                         test[0][1] = cp*sy;
3033                         test[0][2] = -sp;
3034                         test[1][0] = sr*sp*cy+cr*-sy;
3035                         test[1][1] = sr*sp*sy+cr*cy;
3036                         test[1][2] = sr*cp;
3037                         test[2][0] = (cr*sp*cy+-sr*-sy);
3038                         test[2][1] = (cr*sp*sy+-sr*cy);
3039                         test[2][2] = cr*cp;
3040                         test[3][0] = pose[9];
3041                         test[3][1] = pose[10];
3042                         test[3][2] = pose[11];
3043 }
3044 #endif
3045                         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]));
3046                         if (l > 0)
3047                                 outbufferpos += l;
3048                 }
3049         }
3050         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3051         if (l > 0)
3052                 outbufferpos += l;
3053         if (writetriangles)
3054         {
3055                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "triangles\n");
3056                 if (l > 0)
3057                         outbufferpos += l;
3058                 for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3059                 {
3060                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3061                         {
3062                                 counttriangles++;
3063                                 if (outbufferpos >= outbuffermax >> 1)
3064                                 {
3065                                         outbuffermax *= 2;
3066                                         oldbuffer = outbuffer;
3067                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3068                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3069                                         Z_Free(oldbuffer);
3070                                 }
3071                                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%s\n", surface->texture && surface->texture->name[0] ? surface->texture->name : "default.bmp");
3072                                 if (l > 0)
3073                                         outbufferpos += l;
3074                                 for (cornerindex = 0;cornerindex < 3;cornerindex++)
3075                                 {
3076                                         const int index = e[2-cornerindex];
3077                                         const float *v = model->surfmesh.data_vertex3f + index * 3;
3078                                         const float *vn = model->surfmesh.data_normal3f + index * 3;
3079                                         const float *vt = model->surfmesh.data_texcoordtexture2f + index * 2;
3080                                         const int b = model->surfmesh.blends[index];
3081                                         if (b < model->num_bones)
3082                                                 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]);
3083                                         else
3084                                         {
3085                                                 const blendweights_t *w = model->surfmesh.data_blendweights + b - model->num_bones;
3086                                                 const unsigned char *wi = w->index;
3087                                                 const unsigned char *wf = w->influence;
3088                                             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);
3089                                                 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);
3090                                                 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);
3091                                                 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]);
3092                                         }
3093                                         if (l > 0)
3094                                                 outbufferpos += l;
3095                                 }
3096                         }
3097                 }
3098                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3099                 if (l > 0)
3100                         outbufferpos += l;
3101         }
3102
3103         FS_WriteFile(filename, outbuffer, outbufferpos);
3104         Z_Free(outbuffer);
3105
3106         Con_Printf("Wrote %s (%i bytes, %i nodes, %i frames, %i triangles)\n", filename, (int)outbufferpos, countnodes, countframes, counttriangles);
3107 }
3108
3109 /*
3110 ================
3111 Mod_Decompile_f
3112
3113 decompiles a model to editable files
3114 ================
3115 */
3116 static void Mod_Decompile_f(void)
3117 {
3118         int i, j, k, l, first, count;
3119         dp_model_t *mod;
3120         char inname[MAX_QPATH];
3121         char outname[MAX_QPATH];
3122         char mtlname[MAX_QPATH];
3123         char basename[MAX_QPATH];
3124         char animname[MAX_QPATH];
3125         char animname2[MAX_QPATH];
3126         char zymtextbuffer[16384];
3127         char dpmtextbuffer[16384];
3128         char framegroupstextbuffer[16384];
3129         int zymtextsize = 0;
3130         int dpmtextsize = 0;
3131         int framegroupstextsize = 0;
3132
3133         if (Cmd_Argc() != 2)
3134         {
3135                 Con_Print("usage: modeldecompile <filename>\n");
3136                 return;
3137         }
3138
3139         strlcpy(inname, Cmd_Argv(1), sizeof(inname));
3140         FS_StripExtension(inname, basename, sizeof(basename));
3141
3142         mod = Mod_ForName(inname, false, true, inname[0] == '*' ? cl.model_name[1] : NULL);
3143         if (mod->brush.submodel)
3144         {
3145                 // if we're decompiling a submodel, be sure to give it a proper name based on its parent
3146                 FS_StripExtension(cl.model_name[1], outname, sizeof(outname));
3147                 dpsnprintf(basename, sizeof(basename), "%s/%s", outname, mod->name);
3148                 outname[0] = 0;
3149         }
3150         if (!mod)
3151         {
3152                 Con_Print("No such model\n");
3153                 return;
3154         }
3155         if (!mod->surfmesh.num_triangles)
3156         {
3157                 Con_Print("Empty model (or sprite)\n");
3158                 return;
3159         }
3160
3161         // export OBJ if possible (not on sprites)
3162         if (mod->surfmesh.num_triangles)
3163         {
3164                 dpsnprintf(outname, sizeof(outname), "%s_decompiled.obj", basename);
3165                 dpsnprintf(mtlname, sizeof(mtlname), "%s_decompiled.mtl", basename);
3166                 Mod_Decompile_OBJ(mod, outname, mtlname, inname);
3167         }
3168
3169         // export SMD if possible (only for skeletal models)
3170         if (mod->surfmesh.num_triangles && mod->num_bones)
3171         {
3172                 dpsnprintf(outname, sizeof(outname), "%s_decompiled/ref1.smd", basename);
3173                 Mod_Decompile_SMD(mod, outname, 0, 1, true);
3174                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "output out.zym\nscale 1\norigin 0 0 0\nmesh ref1.smd\n");
3175                 if (l > 0) zymtextsize += l;
3176                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "outputdir .\nmodel out\nscale 1\norigin 0 0 0\nscene ref1.smd\n");
3177                 if (l > 0) dpmtextsize += l;
3178                 for (i = 0;i < mod->numframes;i = j)
3179                 {
3180                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3181                         first = mod->animscenes[i].firstframe;
3182                         if (mod->animscenes[i].framecount > 1)
3183                         {
3184                                 // framegroup anim
3185                                 count = mod->animscenes[i].framecount;
3186                                 j = i + 1;
3187                         }
3188                         else
3189                         {
3190                                 // individual frame
3191                                 // check for additional frames with same name
3192                                 for (l = 0, k = strlen(animname);animname[l];l++)
3193                                         if(animname[l] < '0' || animname[l] > '9')
3194                                                 k = l + 1;
3195                                 if(k > 0 && animname[k-1] == '_')
3196                                         --k;
3197                                 animname[k] = 0;
3198                                 count = mod->num_poses - first;
3199                                 for (j = i + 1;j < mod->numframes;j++)
3200                                 {
3201                                         strlcpy(animname2, mod->animscenes[j].name, sizeof(animname2));
3202                                         for (l = 0, k = strlen(animname2);animname2[l];l++)
3203                                                 if(animname2[l] < '0' || animname2[l] > '9')
3204                                                         k = l + 1;
3205                                         if(k > 0 && animname[k-1] == '_')
3206                                                 --k;
3207                                         animname2[k] = 0;
3208                                         if (strcmp(animname2, animname) || mod->animscenes[j].framecount > 1)
3209                                         {
3210                                                 count = mod->animscenes[j].firstframe - first;
3211                                                 break;
3212                                         }
3213                                 }
3214                                 // if it's only one frame, use the original frame name
3215                                 if (j == i + 1)
3216                                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3217
3218                         }
3219                         dpsnprintf(outname, sizeof(outname), "%s_decompiled/%s.smd", basename, animname);
3220                         Mod_Decompile_SMD(mod, outname, first, count, false);
3221                         if (zymtextsize < (int)sizeof(zymtextbuffer) - 100)
3222                         {
3223                                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3224                                 if (l > 0) zymtextsize += l;
3225                         }
3226                         if (dpmtextsize < (int)sizeof(dpmtextbuffer) - 100)
3227                         {
3228                                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3229                                 if (l > 0) dpmtextsize += l;
3230                         }
3231                         if (framegroupstextsize < (int)sizeof(framegroupstextbuffer) - 100)
3232                         {
3233                                 l = dpsnprintf(framegroupstextbuffer + framegroupstextsize, sizeof(framegroupstextbuffer) - framegroupstextsize, "%d %d %f %d // %s\n", first, count, mod->animscenes[i].framerate, mod->animscenes[i].loop, animname);
3234                                 if (l > 0) framegroupstextsize += l;
3235                         }
3236                 }
3237                 if (zymtextsize)
3238                         FS_WriteFile(va("%s_decompiled/out_zym.txt", basename), zymtextbuffer, (fs_offset_t)zymtextsize);
3239                 if (dpmtextsize)
3240                         FS_WriteFile(va("%s_decompiled/out_dpm.txt", basename), dpmtextbuffer, (fs_offset_t)dpmtextsize);
3241                 if (framegroupstextsize)
3242                         FS_WriteFile(va("%s_decompiled.framegroups", basename), framegroupstextbuffer, (fs_offset_t)framegroupstextsize);
3243         }
3244 }
3245
3246 void Mod_AllocLightmap_Init(mod_alloclightmap_state_t *state, int width, int height)
3247 {
3248         int y;
3249         memset(state, 0, sizeof(*state));
3250         state->width = width;
3251         state->height = height;
3252         state->currentY = 0;
3253         state->rows = (mod_alloclightmap_row_t *)Mem_Alloc(loadmodel->mempool, state->height * sizeof(*state->rows));
3254         for (y = 0;y < state->height;y++)
3255         {
3256                 state->rows[y].currentX = 0;
3257                 state->rows[y].rowY = -1;
3258         }
3259 }
3260
3261 void Mod_AllocLightmap_Reset(mod_alloclightmap_state_t *state)
3262 {
3263         int y;
3264         state->currentY = 0;
3265         for (y = 0;y < state->height;y++)
3266         {
3267                 state->rows[y].currentX = 0;
3268                 state->rows[y].rowY = -1;
3269         }
3270 }
3271
3272 void Mod_AllocLightmap_Free(mod_alloclightmap_state_t *state)
3273 {
3274         if (state->rows)
3275                 Mem_Free(state->rows);
3276         memset(state, 0, sizeof(*state));
3277 }
3278
3279 qboolean Mod_AllocLightmap_Block(mod_alloclightmap_state_t *state, int blockwidth, int blockheight, int *outx, int *outy)
3280 {
3281         mod_alloclightmap_row_t *row;
3282         int y;
3283
3284         row = state->rows + blockheight;
3285         if ((row->rowY < 0) || (row->currentX + blockwidth > state->width))
3286         {
3287                 if (state->currentY + blockheight <= state->height)
3288                 {
3289                         // use the current allocation position
3290                         row->rowY = state->currentY;
3291                         row->currentX = 0;
3292                         state->currentY += blockheight;
3293                 }
3294                 else
3295                 {
3296                         // find another position
3297                         for (y = blockheight;y < state->height;y++)
3298                         {
3299                                 if ((state->rows[y].rowY >= 0) && (state->rows[y].currentX + blockwidth <= state->width))
3300                                 {
3301                                         row = state->rows + y;
3302                                         break;
3303                                 }
3304                         }
3305                         if (y == state->height)
3306                                 return false;
3307                 }
3308         }
3309         *outy = row->rowY;
3310         *outx = row->currentX;
3311         row->currentX += blockwidth;
3312
3313         return true;
3314 }
3315
3316 typedef struct lightmapsample_s
3317 {
3318         float pos[3];
3319         float sh1[4][3];
3320         float *vertex_color;
3321         unsigned char *lm_bgr;
3322         unsigned char *lm_dir;
3323 }
3324 lightmapsample_t;
3325
3326 typedef struct lightmapvertex_s
3327 {
3328         int index;
3329         float pos[3];
3330         float normal[3];
3331         float texcoordbase[2];
3332         float texcoordlightmap[2];
3333         float lightcolor[4];
3334 }
3335 lightmapvertex_t;
3336
3337 typedef struct lightmaptriangle_s
3338 {
3339         int triangleindex;
3340         int surfaceindex;
3341         int lightmapindex;
3342         int axis;
3343         int lmoffset[2];
3344         int lmsize[2];
3345         // 2D modelspace coordinates of min corner
3346         // snapped to lightmap grid but not in grid coordinates
3347         float lmbase[2];
3348         // 2D modelspace to lightmap coordinate scale
3349         float lmscale[2];
3350         float vertex[3][3];
3351         float mins[3];
3352         float maxs[3];
3353 }
3354 lightmaptriangle_t;
3355
3356 typedef struct lightmaplight_s
3357 {
3358         float origin[3];
3359         float radius;
3360         float iradius;
3361         float radius2;
3362         float color[3];
3363         svbsp_t svbsp;
3364 }
3365 lightmaplight_t;
3366
3367 lightmaptriangle_t *mod_generatelightmaps_lightmaptriangles;
3368
3369 #define MAX_LIGHTMAPSAMPLES 64
3370 static int mod_generatelightmaps_numoffsets[3];
3371 static float mod_generatelightmaps_offsets[3][MAX_LIGHTMAPSAMPLES][3];
3372
3373 static int mod_generatelightmaps_numlights;
3374 static lightmaplight_t *mod_generatelightmaps_lightinfo;
3375
3376 extern int R_Shadow_GetRTLightInfo(unsigned int lightindex, float *origin, float *radius, float *color);
3377 extern cvar_t r_shadow_lightattenuationdividebias;
3378 extern cvar_t r_shadow_lightattenuationlinearscale;
3379
3380 static void Mod_GenerateLightmaps_LightPoint(dp_model_t *model, const vec3_t pos, vec3_t ambient, vec3_t diffuse, vec3_t lightdir)
3381 {
3382         int i;
3383         int index;
3384         int result;
3385         float relativepoint[3];
3386         float color[3];
3387         float dir[3];
3388         float dist;
3389         float dist2;
3390         float intensity;
3391         float sample[5*3];
3392         float lightorigin[3];
3393         float lightradius;
3394         float lightradius2;
3395         float lightiradius;
3396         float lightcolor[3];
3397         trace_t trace;
3398         for (i = 0;i < 5*3;i++)
3399                 sample[i] = 0.0f;
3400         for (index = 0;;index++)
3401         {
3402                 result = R_Shadow_GetRTLightInfo(index, lightorigin, &lightradius, lightcolor);
3403                 if (result < 0)
3404                         break;
3405                 if (result == 0)
3406                         continue;
3407                 lightradius2 = lightradius * lightradius;
3408                 VectorSubtract(lightorigin, pos, relativepoint);
3409                 dist2 = VectorLength2(relativepoint);
3410                 if (dist2 >= lightradius2)
3411                         continue;
3412                 lightiradius = 1.0f / lightradius;
3413                 dist = sqrt(dist2) * lightiradius;
3414                 intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
3415                 if (intensity <= 0)
3416                         continue;
3417                 if (model && model->TraceLine)
3418                 {
3419                         model->TraceLine(model, NULL, NULL, &trace, pos, lightorigin, SUPERCONTENTS_VISBLOCKERMASK);
3420                         if (trace.fraction < 1)
3421                                 continue;
3422                 }
3423                 // scale down intensity to add to both ambient and diffuse
3424                 //intensity *= 0.5f;
3425                 VectorNormalize(relativepoint);
3426                 VectorScale(lightcolor, intensity, color);
3427                 VectorMA(sample    , 0.5f            , color, sample    );
3428                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3429                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3430                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3431                 // calculate a weighted average light direction as well
3432                 intensity *= VectorLength(color);
3433                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3434         }
3435         // calculate the direction we'll use to reduce the sample to a directional light source
3436         VectorCopy(sample + 12, dir);
3437         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3438         VectorNormalize(dir);
3439         // extract the diffuse color along the chosen direction and scale it
3440         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]);
3441         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]);
3442         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]);
3443         // subtract some of diffuse from ambient
3444         VectorMA(sample, -0.333f, diffuse, ambient);
3445         // store the normalized lightdir
3446         VectorCopy(dir, lightdir);
3447 }
3448
3449 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(const dp_model_t *model, svbsp_t *svbsp, const float *mins, const float *maxs)
3450 {
3451         int surfaceindex;
3452         int triangleindex;
3453         const msurface_t *surface;
3454         const float *vertex3f = model->surfmesh.data_vertex3f;
3455         const int *element3i = model->surfmesh.data_element3i;
3456         const int *e;
3457         float v2[3][3];
3458         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->nummodelsurfaces;surfaceindex++, surface++)
3459         {
3460                 if (!BoxesOverlap(surface->mins, surface->maxs, mins, maxs))
3461                         continue;
3462                 if (surface->texture->basematerialflags & MATERIALFLAG_NOSHADOW)
3463                         continue;
3464                 for (triangleindex = 0, e = element3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3465                 {
3466                         VectorCopy(vertex3f + 3*e[0], v2[0]);
3467                         VectorCopy(vertex3f + 3*e[1], v2[1]);
3468                         VectorCopy(vertex3f + 3*e[2], v2[2]);
3469                         SVBSP_AddPolygon(svbsp, 3, v2[0], true, NULL, NULL, 0);
3470                 }
3471         }
3472 }
3473
3474 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(dp_model_t *model, lightmaplight_t *lightinfo)
3475 {
3476         int maxnodes = 1<<14;
3477         svbsp_node_t *nodes;
3478         float origin[3];
3479         float mins[3];
3480         float maxs[3];
3481         svbsp_t svbsp;
3482         VectorSet(mins, lightinfo->origin[0] - lightinfo->radius, lightinfo->origin[1] - lightinfo->radius, lightinfo->origin[2] - lightinfo->radius);
3483         VectorSet(maxs, lightinfo->origin[0] + lightinfo->radius, lightinfo->origin[1] + lightinfo->radius, lightinfo->origin[2] + lightinfo->radius);
3484         VectorCopy(lightinfo->origin, origin);
3485         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3486         for (;;)
3487         {
3488                 SVBSP_Init(&svbsp, origin, maxnodes, nodes);
3489                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(model, &svbsp, mins, maxs);
3490                 if (svbsp.ranoutofnodes)
3491                 {
3492                         maxnodes *= 16;
3493                         if (maxnodes > 1<<22)
3494                         {
3495                                 Mem_Free(nodes);
3496                                 return;
3497                         }
3498                         Mem_Free(nodes);
3499                         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3500                 }
3501                 else
3502                         break;
3503         }
3504         if (svbsp.numnodes > 0)
3505         {
3506                 svbsp.nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, svbsp.numnodes * sizeof(*nodes));
3507                 memcpy(svbsp.nodes, nodes, svbsp.numnodes * sizeof(*nodes));
3508                 lightinfo->svbsp = svbsp;
3509         }
3510         Mem_Free(nodes);
3511 }
3512
3513 static void Mod_GenerateLightmaps_CreateLights(dp_model_t *model)
3514 {
3515         int index;
3516         int result;
3517         lightmaplight_t *lightinfo;
3518         float origin[3];
3519         float radius;
3520         float color[3];
3521         mod_generatelightmaps_numlights = 0;
3522         for (index = 0;;index++)
3523         {
3524                 result = R_Shadow_GetRTLightInfo(index, origin, &radius, color);
3525                 if (result < 0)
3526                         break;
3527                 if (result > 0)
3528                         mod_generatelightmaps_numlights++;
3529         }
3530         if (mod_generatelightmaps_numlights > 0)
3531         {
3532                 mod_generatelightmaps_lightinfo = (lightmaplight_t *)Mem_Alloc(tempmempool, mod_generatelightmaps_numlights * sizeof(*mod_generatelightmaps_lightinfo));
3533                 lightinfo = mod_generatelightmaps_lightinfo;
3534                 for (index = 0;;index++)
3535                 {
3536                         result = R_Shadow_GetRTLightInfo(index, lightinfo->origin, &lightinfo->radius, lightinfo->color);
3537                         if (result < 0)
3538                                 break;
3539                         if (result > 0)
3540                                 lightinfo++;
3541                 }
3542         }
3543         for (index = 0, lightinfo = mod_generatelightmaps_lightinfo;index < mod_generatelightmaps_numlights;index++, lightinfo++)
3544         {
3545                 lightinfo->iradius = 1.0f / lightinfo->radius;
3546                 lightinfo->radius2 = lightinfo->radius * lightinfo->radius;
3547                 // TODO: compute svbsp
3548                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(model, lightinfo);
3549         }
3550 }
3551
3552 static void Mod_GenerateLightmaps_DestroyLights(dp_model_t *model)
3553 {
3554         int i;
3555         if (mod_generatelightmaps_lightinfo)
3556         {
3557                 for (i = 0;i < mod_generatelightmaps_numlights;i++)
3558                         if (mod_generatelightmaps_lightinfo[i].svbsp.nodes)
3559                                 Mem_Free(mod_generatelightmaps_lightinfo[i].svbsp.nodes);
3560                 Mem_Free(mod_generatelightmaps_lightinfo);
3561         }
3562         mod_generatelightmaps_lightinfo = NULL;
3563         mod_generatelightmaps_numlights = 0;
3564 }
3565
3566 static qboolean Mod_GenerateLightmaps_SamplePoint_SVBSP(const svbsp_t *svbsp, const float *pos)
3567 {
3568         const svbsp_node_t *node;
3569         const svbsp_node_t *nodes = svbsp->nodes;
3570         int num = 0;
3571         while (num >= 0)
3572         {
3573                 node = nodes + num;
3574                 num = node->children[DotProduct(node->plane, pos) < node->plane[3]];
3575         }
3576         return num == -1; // true if empty, false if solid (shadowed)
3577 }
3578
3579 static void Mod_GenerateLightmaps_SamplePoint(const float *pos, const float *normal, float *sample, int numoffsets, const float *offsets)
3580 {
3581         int i;
3582         float relativepoint[3];
3583         float color[3];
3584         float offsetpos[3];
3585         float dist;
3586         float dist2;
3587         float intensity;
3588         int offsetindex;
3589         int hits;
3590         int tests;
3591         const lightmaplight_t *lightinfo;
3592         trace_t trace;
3593         for (i = 0;i < 5*3;i++)
3594                 sample[i] = 0.0f;
3595         for (i = 0, lightinfo = mod_generatelightmaps_lightinfo;i < mod_generatelightmaps_numlights;i++, lightinfo++)
3596         {
3597                 //R_SampleRTLights(pos, sample, numoffsets, offsets);
3598                 VectorSubtract(lightinfo->origin, pos, relativepoint);
3599                 // don't accept light from behind a surface, it causes bad shading
3600                 if (normal && DotProduct(relativepoint, normal) <= 0)
3601                         continue;
3602                 dist2 = VectorLength2(relativepoint);
3603                 if (dist2 >= lightinfo->radius2)
3604                         continue;
3605                 dist = sqrt(dist2) * lightinfo->iradius;
3606                 intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
3607                 if (intensity <= 0)
3608                         continue;
3609                 if (cl.worldmodel && cl.worldmodel->TraceLine && numoffsets > 0)
3610                 {
3611                         hits = 0;
3612                         tests = 1;
3613                         if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, pos))
3614                                 hits++;
3615                         for (offsetindex = 1;offsetindex < numoffsets;offsetindex++)
3616                         {
3617                                 VectorAdd(pos, offsets + 3*offsetindex, offsetpos);
3618                                 if (!normal)
3619                                 {
3620                                         // for light grid we'd better check visibility of the offset point
3621                                         cl.worldmodel->TraceLine(cl.worldmodel, NULL, NULL, &trace, pos, offsetpos, SUPERCONTENTS_VISBLOCKERMASK);
3622                                         if (trace.fraction < 1)
3623                                                 VectorLerp(pos, trace.fraction, offsetpos, offsetpos);
3624                                 }
3625                                 tests++;
3626                                 if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, offsetpos))
3627                                         hits++;
3628                         }
3629                         if (!hits)
3630                                 continue;
3631                         // scale intensity according to how many rays succeeded
3632                         // we know one test is valid, half of the rest will fail...
3633                         //if (normal && tests > 1)
3634                         //      intensity *= (tests - 1.0f) / tests;
3635                         intensity *= (float)hits / tests;
3636                 }
3637                 // scale down intensity to add to both ambient and diffuse
3638                 //intensity *= 0.5f;
3639                 VectorNormalize(relativepoint);
3640                 VectorScale(lightinfo->color, intensity, color);
3641                 VectorMA(sample    , 0.5f            , color, sample    );
3642                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3643                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3644                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3645                 // calculate a weighted average light direction as well
3646                 intensity *= VectorLength(color);
3647                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3648         }
3649 }
3650
3651 static void Mod_GenerateLightmaps_LightmapSample(const float *pos, const float *normal, unsigned char *lm_bgr, unsigned char *lm_dir)
3652 {
3653         float sample[5*3];
3654         float color[3];
3655         float dir[3];
3656         float f;
3657         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[0], mod_generatelightmaps_offsets[0][0]);
3658         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3659         VectorCopy(sample + 12, dir);
3660         VectorNormalize(dir);
3661         //VectorAdd(dir, normal, dir);
3662         //VectorNormalize(dir);
3663         f = DotProduct(dir, normal);
3664         f = max(0, f) * 255.0f;
3665         VectorScale(sample, f, color);
3666         //VectorCopy(normal, dir);
3667         VectorSet(dir, (dir[0]+1.0f)*127.5f, (dir[1]+1.0f)*127.5f, (dir[2]+1.0f)*127.5f);
3668         lm_bgr[0] = (unsigned char)bound(0.0f, color[2], 255.0f);
3669         lm_bgr[1] = (unsigned char)bound(0.0f, color[1], 255.0f);
3670         lm_bgr[2] = (unsigned char)bound(0.0f, color[0], 255.0f);
3671         lm_bgr[3] = 255;
3672         lm_dir[0] = (unsigned char)dir[2];
3673         lm_dir[1] = (unsigned char)dir[1];
3674         lm_dir[2] = (unsigned char)dir[0];
3675         lm_dir[3] = 255;
3676 }
3677
3678 static void Mod_GenerateLightmaps_VertexSample(const float *pos, const float *normal, float *vertex_color)
3679 {
3680         float sample[5*3];
3681         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[1], mod_generatelightmaps_offsets[1][0]);
3682         VectorCopy(sample, vertex_color);
3683 }
3684
3685 static void Mod_GenerateLightmaps_GridSample(const float *pos, q3dlightgrid_t *s)
3686 {
3687         float sample[5*3];
3688         float ambient[3];
3689         float diffuse[3];
3690         float dir[3];
3691         Mod_GenerateLightmaps_SamplePoint(pos, NULL, sample, mod_generatelightmaps_numoffsets[2], mod_generatelightmaps_offsets[2][0]);
3692         // calculate the direction we'll use to reduce the sample to a directional light source
3693         VectorCopy(sample + 12, dir);
3694         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3695         VectorNormalize(dir);
3696         // extract the diffuse color along the chosen direction and scale it
3697         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]) * 127.5f;
3698         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]) * 127.5f;
3699         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]) * 127.5f;
3700         // scale the ambient from 0-2 to 0-255 and subtract some of diffuse
3701         VectorScale(sample, 127.5f, ambient);
3702         VectorMA(ambient, -0.333f, diffuse, ambient);
3703         // encode to the grid format
3704         s->ambientrgb[0] = (unsigned char)bound(0.0f, ambient[0], 255.0f);
3705         s->ambientrgb[1] = (unsigned char)bound(0.0f, ambient[1], 255.0f);
3706         s->ambientrgb[2] = (unsigned char)bound(0.0f, ambient[2], 255.0f);
3707         s->diffusergb[0] = (unsigned char)bound(0.0f, diffuse[0], 255.0f);
3708         s->diffusergb[1] = (unsigned char)bound(0.0f, diffuse[1], 255.0f);
3709         s->diffusergb[2] = (unsigned char)bound(0.0f, diffuse[2], 255.0f);
3710         if (dir[2] >= 0.99f) {s->diffusepitch = 0;s->diffuseyaw = 0;}
3711         else if (dir[2] <= -0.99f) {s->diffusepitch = 128;s->diffuseyaw = 0;}
3712         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));}
3713 }
3714
3715 static void Mod_GenerateLightmaps_InitSampleOffsets(dp_model_t *model)
3716 {
3717         float radius[3];
3718         float temp[3];
3719         int i, j;
3720         memset(mod_generatelightmaps_offsets, 0, sizeof(mod_generatelightmaps_offsets));
3721         mod_generatelightmaps_numoffsets[0] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_lightmapsamples.integer);
3722         mod_generatelightmaps_numoffsets[1] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_vertexsamples.integer);
3723         mod_generatelightmaps_numoffsets[2] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_gridsamples.integer);
3724         radius[0] = mod_generatelightmaps_lightmapradius.value;
3725         radius[1] = mod_generatelightmaps_vertexradius.value;
3726         radius[2] = mod_generatelightmaps_gridradius.value;
3727         for (i = 0;i < 3;i++)
3728         {
3729                 for (j = 1;j < mod_generatelightmaps_numoffsets[i];j++)
3730                 {
3731                         VectorRandom(temp);
3732                         VectorScale(temp, radius[i], mod_generatelightmaps_offsets[i][j]);
3733                 }
3734         }
3735 }
3736
3737 static void Mod_GenerateLightmaps_DestroyLightmaps(dp_model_t *model)
3738 {
3739         msurface_t *surface;
3740         int surfaceindex;
3741         int i;
3742         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3743         {
3744                 surface = model->data_surfaces + surfaceindex;
3745                 surface->lightmaptexture = NULL;
3746                 surface->deluxemaptexture = NULL;
3747         }
3748         if (model->brushq3.data_lightmaps)
3749         {
3750                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3751                         if (model->brushq3.data_lightmaps[i])
3752                                 R_FreeTexture(model->brushq3.data_lightmaps[i]);
3753                 Mem_Free(model->brushq3.data_lightmaps);
3754                 model->brushq3.data_lightmaps = NULL;
3755         }
3756         if (model->brushq3.data_deluxemaps)
3757         {
3758                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3759                         if (model->brushq3.data_deluxemaps[i])
3760                                 R_FreeTexture(model->brushq3.data_deluxemaps[i]);
3761                 Mem_Free(model->brushq3.data_deluxemaps);
3762                 model->brushq3.data_deluxemaps = NULL;
3763         }
3764 }
3765
3766 static void Mod_GenerateLightmaps_UnweldTriangles(dp_model_t *model)
3767 {
3768         msurface_t *surface;
3769         int surfaceindex;
3770         int vertexindex;
3771         int outvertexindex;
3772         int i;
3773         const int *e;
3774         surfmesh_t oldsurfmesh;
3775         size_t size;
3776         unsigned char *data;
3777         oldsurfmesh = model->surfmesh;
3778         model->surfmesh.num_triangles = oldsurfmesh.num_triangles;
3779         model->surfmesh.num_vertices = oldsurfmesh.num_triangles * 3;
3780         size = 0;
3781         size += model->surfmesh.num_vertices * sizeof(float[3]);
3782         size += model->surfmesh.num_vertices * sizeof(float[3]);
3783         size += model->surfmesh.num_vertices * sizeof(float[3]);
3784         size += model->surfmesh.num_vertices * sizeof(float[3]);
3785         size += model->surfmesh.num_vertices * sizeof(float[2]);
3786         size += model->surfmesh.num_vertices * sizeof(float[2]);
3787         size += model->surfmesh.num_vertices * sizeof(float[4]);
3788         data = (unsigned char *)Mem_Alloc(model->mempool, size);
3789         model->surfmesh.data_vertex3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3790         model->surfmesh.data_normal3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3791         model->surfmesh.data_svector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3792         model->surfmesh.data_tvector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3793         model->surfmesh.data_texcoordtexture2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
3794         model->surfmesh.data_texcoordlightmap2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
3795         model->surfmesh.data_lightmapcolor4f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[4]);
3796         if (model->surfmesh.num_vertices > 65536)
3797                 model->surfmesh.data_element3s = NULL;
3798
3799         if (model->surfmesh.vertexposition)
3800                 Mem_Free(model->surfmesh.vertexposition);
3801         model->surfmesh.vertexposition = NULL;
3802         if (model->surfmesh.vertexmesh)
3803                 Mem_Free(model->surfmesh.vertexmesh);
3804         model->surfmesh.vertexmesh = NULL;
3805         if (model->surfmesh.vertexpositionbuffer)
3806                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vertexpositionbuffer);
3807         model->surfmesh.vertexpositionbuffer = NULL;
3808         if (model->surfmesh.vertexmeshbuffer)
3809                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vertexmeshbuffer);
3810         model->surfmesh.vertexmeshbuffer = NULL;
3811         if (model->surfmesh.data_element3i_indexbuffer)
3812                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3i_indexbuffer);
3813         model->surfmesh.data_element3i_indexbuffer = NULL;
3814         if (model->surfmesh.data_element3s_indexbuffer)
3815                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3s_indexbuffer);
3816         model->surfmesh.data_element3s_indexbuffer = NULL;
3817         if (model->surfmesh.vbo_vertexbuffer)
3818                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vbo_vertexbuffer);
3819         model->surfmesh.vbo_vertexbuffer = 0;
3820
3821         // convert all triangles to unique vertex data
3822         outvertexindex = 0;
3823         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3824         {
3825                 surface = model->data_surfaces + surfaceindex;
3826                 surface->num_firstvertex = outvertexindex;
3827                 surface->num_vertices = surface->num_triangles*3;
3828                 e = oldsurfmesh.data_element3i + surface->num_firsttriangle*3;
3829                 for (i = 0;i < surface->num_triangles*3;i++)
3830                 {
3831                         vertexindex = e[i];
3832                         model->surfmesh.data_vertex3f[outvertexindex*3+0] = oldsurfmesh.data_vertex3f[vertexindex*3+0];
3833                         model->surfmesh.data_vertex3f[outvertexindex*3+1] = oldsurfmesh.data_vertex3f[vertexindex*3+1];
3834                         model->surfmesh.data_vertex3f[outvertexindex*3+2] = oldsurfmesh.data_vertex3f[vertexindex*3+2];
3835                         model->surfmesh.data_normal3f[outvertexindex*3+0] = oldsurfmesh.data_normal3f[vertexindex*3+0];
3836                         model->surfmesh.data_normal3f[outvertexindex*3+1] = oldsurfmesh.data_normal3f[vertexindex*3+1];
3837                         model->surfmesh.data_normal3f[outvertexindex*3+2] = oldsurfmesh.data_normal3f[vertexindex*3+2];
3838                         model->surfmesh.data_svector3f[outvertexindex*3+0] = oldsurfmesh.data_svector3f[vertexindex*3+0];
3839                         model->surfmesh.data_svector3f[outvertexindex*3+1] = oldsurfmesh.data_svector3f[vertexindex*3+1];
3840                         model->surfmesh.data_svector3f[outvertexindex*3+2] = oldsurfmesh.data_svector3f[vertexindex*3+2];
3841                         model->surfmesh.data_tvector3f[outvertexindex*3+0] = oldsurfmesh.data_tvector3f[vertexindex*3+0];
3842                         model->surfmesh.data_tvector3f[outvertexindex*3+1] = oldsurfmesh.data_tvector3f[vertexindex*3+1];
3843                         model->surfmesh.data_tvector3f[outvertexindex*3+2] = oldsurfmesh.data_tvector3f[vertexindex*3+2];
3844                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+0];
3845                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+1];
3846                         if (oldsurfmesh.data_texcoordlightmap2f)
3847                         {
3848                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+0];
3849                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+1];
3850                         }
3851                         if (oldsurfmesh.data_lightmapcolor4f)
3852                         {
3853                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+0] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+0];
3854                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+1] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+1];
3855                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+2] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+2];
3856                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+3] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+3];
3857                         }
3858                         else
3859                                 Vector4Set(model->surfmesh.data_lightmapcolor4f + 4*outvertexindex, 1, 1, 1, 1);
3860                         model->surfmesh.data_element3i[surface->num_firsttriangle*3+i] = outvertexindex;
3861                         outvertexindex++;
3862                 }
3863         }
3864         if (model->surfmesh.data_element3s)
3865                 for (i = 0;i < model->surfmesh.num_triangles*3;i++)
3866                         model->surfmesh.data_element3s[i] = model->surfmesh.data_element3i[i];
3867
3868         // find and update all submodels to use this new surfmesh data
3869         for (i = 0;i < model->brush.numsubmodels;i++)
3870                 model->brush.submodels[i]->surfmesh = model->surfmesh;
3871 }
3872
3873 static void Mod_GenerateLightmaps_CreateTriangleInformation(dp_model_t *model)
3874 {
3875         msurface_t *surface;
3876         int surfaceindex;
3877         int i;
3878         int axis;
3879         float normal[3];
3880         const int *e;
3881         lightmaptriangle_t *triangle;
3882         // generate lightmap triangle structs
3883         mod_generatelightmaps_lightmaptriangles = (lightmaptriangle_t *)Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
3884         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3885         {
3886                 surface = model->data_surfaces + surfaceindex;
3887                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
3888                 for (i = 0;i < surface->num_triangles;i++)
3889                 {
3890                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
3891                         triangle->triangleindex = surface->num_firsttriangle+i;
3892                         triangle->surfaceindex = surfaceindex;
3893                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+0], triangle->vertex[0]);
3894                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+1], triangle->vertex[1]);
3895                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+2], triangle->vertex[2]);
3896                         // calculate bounds of triangle
3897                         triangle->mins[0] = min(triangle->vertex[0][0], min(triangle->vertex[1][0], triangle->vertex[2][0]));
3898                         triangle->mins[1] = min(triangle->vertex[0][1], min(triangle->vertex[1][1], triangle->vertex[2][1]));
3899                         triangle->mins[2] = min(triangle->vertex[0][2], min(triangle->vertex[1][2], triangle->vertex[2][2]));
3900                         triangle->maxs[0] = max(triangle->vertex[0][0], max(triangle->vertex[1][0], triangle->vertex[2][0]));
3901                         triangle->maxs[1] = max(triangle->vertex[0][1], max(triangle->vertex[1][1], triangle->vertex[2][1]));
3902                         triangle->maxs[2] = max(triangle->vertex[0][2], max(triangle->vertex[1][2], triangle->vertex[2][2]));
3903                         // pick an axial projection based on the triangle normal
3904                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], normal);
3905                         axis = 0;
3906                         if (fabs(normal[1]) > fabs(normal[axis]))
3907                                 axis = 1;
3908                         if (fabs(normal[2]) > fabs(normal[axis]))
3909                                 axis = 2;
3910                         triangle->axis = axis;
3911                 }
3912         }
3913 }
3914
3915 static void Mod_GenerateLightmaps_DestroyTriangleInformation(dp_model_t *model)
3916 {
3917         if (mod_generatelightmaps_lightmaptriangles)
3918                 Mem_Free(mod_generatelightmaps_lightmaptriangles);
3919         mod_generatelightmaps_lightmaptriangles = NULL;
3920 }
3921
3922 float lmaxis[3][3] = {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}};
3923
3924 static void Mod_GenerateLightmaps_CreateLightmaps(dp_model_t *model)
3925 {
3926         msurface_t *surface;
3927         int surfaceindex;
3928         int lightmapindex;
3929         int lightmapnumber;
3930         int i;
3931         int j;
3932         int k;
3933         int x;
3934         int y;
3935         int axis;
3936         int axis1;
3937         int axis2;
3938         int retry;
3939         int pixeloffset;
3940         float trianglenormal[3];
3941         float samplecenter[3];
3942         float samplenormal[3];
3943         float temp[3];
3944         float lmiscale[2];
3945         float slopex;
3946         float slopey;
3947         float slopebase;
3948         float lmscalepixels;
3949         float lmmins;
3950         float lmmaxs;
3951         float lm_basescalepixels;
3952         int lm_borderpixels;
3953         int lm_texturesize;
3954         //int lm_maxpixels;
3955         const int *e;
3956         lightmaptriangle_t *triangle;
3957         unsigned char *lightmappixels;
3958         unsigned char *deluxemappixels;
3959         mod_alloclightmap_state_t lmstate;
3960
3961         // generate lightmap projection information for all triangles
3962         if (model->texturepool == NULL)
3963                 model->texturepool = R_AllocTexturePool();
3964         lm_basescalepixels = 1.0f / max(0.0001f, mod_generatelightmaps_unitspersample.value);
3965         lm_borderpixels = mod_generatelightmaps_borderpixels.integer;
3966         lm_texturesize = bound(lm_borderpixels*2+1, 64, (int)vid.maxtexturesize_2d);
3967         //lm_maxpixels = lm_texturesize-(lm_borderpixels*2+1);
3968         Mod_AllocLightmap_Init(&lmstate, lm_texturesize, lm_texturesize);
3969         lightmapnumber = 0;
3970         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3971         {
3972                 surface = model->data_surfaces + surfaceindex;
3973                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
3974                 lmscalepixels = lm_basescalepixels;
3975                 for (retry = 0;retry < 30;retry++)
3976                 {
3977                         // after a couple failed attempts, degrade quality to make it fit
3978                         if (retry > 1)
3979                                 lmscalepixels *= 0.5f;
3980                         for (i = 0;i < surface->num_triangles;i++)
3981                         {
3982                                 triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
3983                                 triangle->lightmapindex = lightmapnumber;
3984                                 // calculate lightmap bounds in 3D pixel coordinates, limit size,
3985                                 // pick two planar axes for projection
3986                                 // lightmap coordinates here are in pixels
3987                                 // lightmap projections are snapped to pixel grid explicitly, such
3988                                 // that two neighboring triangles sharing an edge and projection
3989                                 // axis will have identical sampl espacing along their shared edge
3990                                 k = 0;
3991                                 for (j = 0;j < 3;j++)
3992                                 {
3993                                         if (j == triangle->axis)
3994                                                 continue;
3995                                         lmmins = floor(triangle->mins[j]*lmscalepixels)-lm_borderpixels;
3996                                         lmmaxs = floor(triangle->maxs[j]*lmscalepixels)+lm_borderpixels;
3997                                         triangle->lmsize[k] = (int)(lmmaxs-lmmins);
3998                                         triangle->lmbase[k] = lmmins/lmscalepixels;
3999                                         triangle->lmscale[k] = lmscalepixels;
4000                                         k++;
4001                                 }
4002                                 if (!Mod_AllocLightmap_Block(&lmstate, triangle->lmsize[0], triangle->lmsize[1], &triangle->lmoffset[0], &triangle->lmoffset[1]))
4003                                         break;
4004                         }
4005                         // if all fit in this texture, we're done with this surface
4006                         if (i == surface->num_triangles)
4007                                 break;
4008                         // if we haven't maxed out the lightmap size yet, we retry the
4009                         // entire surface batch...
4010                         if (lm_texturesize * 2 <= min(mod_generatelightmaps_texturesize.integer, (int)vid.maxtexturesize_2d))
4011                         {
4012                                 lm_texturesize *= 2;
4013                                 surfaceindex = -1;
4014                                 lightmapnumber = 0;
4015                                 Mod_AllocLightmap_Free(&lmstate);
4016                                 Mod_AllocLightmap_Init(&lmstate, lm_texturesize, lm_texturesize);
4017                                 break;
4018                         }
4019                         // if we have maxed out the lightmap size, and this triangle does
4020                         // not fit in the same texture as the rest of the surface, we have
4021                         // to retry the entire surface in a new texture (can only use one)
4022                         // with multiple retries, the lightmap quality degrades until it
4023                         // fits (or gives up)
4024                         if (surfaceindex > 0)
4025                                 lightmapnumber++;
4026                         Mod_AllocLightmap_Reset(&lmstate);
4027                 }
4028         }
4029         lightmapnumber++;
4030         Mod_AllocLightmap_Free(&lmstate);
4031
4032         // now put triangles together into lightmap textures, and do not allow
4033         // triangles of a surface to go into different textures (as that would
4034         // require rewriting the surface list)
4035         model->brushq3.deluxemapping_modelspace = true;
4036         model->brushq3.deluxemapping = true;
4037         model->brushq3.num_mergedlightmaps = lightmapnumber;
4038         model->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4039         model->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4040         lightmappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4041         deluxemappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4042         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4043         {
4044                 surface = model->data_surfaces + surfaceindex;
4045                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4046                 for (i = 0;i < surface->num_triangles;i++)
4047                 {
4048                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4049                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], trianglenormal);
4050                         VectorNormalize(trianglenormal);
4051                         VectorCopy(trianglenormal, samplenormal); // FIXME: this is supposed to be interpolated per pixel from vertices
4052                         axis = triangle->axis;
4053                         axis1 = axis == 0 ? 1 : 0;
4054                         axis2 = axis == 2 ? 1 : 2;
4055                         lmiscale[0] = 1.0f / triangle->lmscale[0];
4056                         lmiscale[1] = 1.0f / triangle->lmscale[1];
4057                         if (trianglenormal[axis] < 0)
4058                                 VectorNegate(trianglenormal, trianglenormal);
4059                         CrossProduct(lmaxis[axis2], trianglenormal, temp);slopex = temp[axis] / temp[axis1];
4060                         CrossProduct(lmaxis[axis1], trianglenormal, temp);slopey = temp[axis] / temp[axis2];
4061                         slopebase = triangle->vertex[0][axis] - triangle->vertex[0][axis1]*slopex - triangle->vertex[0][axis2]*slopey;
4062                         for (j = 0;j < 3;j++)
4063                         {
4064                                 float *t2f = model->surfmesh.data_texcoordlightmap2f + e[i*3+j]*2;
4065                                 t2f[0] = ((triangle->vertex[j][axis1] - triangle->lmbase[0]) * triangle->lmscale[0] + triangle->lmoffset[0]) / lm_texturesize;
4066                                 t2f[1] = ((triangle->vertex[j][axis2] - triangle->lmbase[1]) * triangle->lmscale[1] + triangle->lmoffset[1]) / lm_texturesize;
4067 #if 0
4068                                 samplecenter[axis1] = (t2f[0]*lm_texturesize-triangle->lmoffset[0])*lmiscale[0] + triangle->lmbase[0];
4069                                 samplecenter[axis2] = (t2f[1]*lm_texturesize-triangle->lmoffset[1])*lmiscale[1] + triangle->lmbase[1];
4070                                 samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4071                                 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]);
4072 #endif
4073                         }
4074
4075 #if 0
4076                         switch (axis)
4077                         {
4078                         default:
4079                         case 0:
4080                                 forward[0] = 0;
4081                                 forward[1] = 1.0f / triangle->lmscale[0];
4082                                 forward[2] = 0;
4083                                 left[0] = 0;
4084                                 left[1] = 0;
4085                                 left[2] = 1.0f / triangle->lmscale[1];
4086                                 up[0] = 1.0f;
4087                                 up[1] = 0;
4088                                 up[2] = 0;
4089                                 origin[0] = 0;
4090                                 origin[1] = triangle->lmbase[0];
4091                                 origin[2] = triangle->lmbase[1];
4092                                 break;
4093                         case 1:
4094                                 forward[0] = 1.0f / triangle->lmscale[0];
4095                                 forward[1] = 0;
4096                                 forward[2] = 0;
4097                                 left[0] = 0;
4098                                 left[1] = 0;
4099                                 left[2] = 1.0f / triangle->lmscale[1];
4100                                 up[0] = 0;
4101                                 up[1] = 1.0f;
4102                                 up[2] = 0;
4103                                 origin[0] = triangle->lmbase[0];
4104                                 origin[1] = 0;
4105                                 origin[2] = triangle->lmbase[1];
4106                                 break;
4107                         case 2:
4108                                 forward[0] = 1.0f / triangle->lmscale[0];
4109                                 forward[1] = 0;
4110                                 forward[2] = 0;
4111                                 left[0] = 0;
4112                                 left[1] = 1.0f / triangle->lmscale[1];
4113                                 left[2] = 0;
4114                                 up[0] = 0;
4115                                 up[1] = 0;
4116                                 up[2] = 1.0f;
4117                                 origin[0] = triangle->lmbase[0];
4118                                 origin[1] = triangle->lmbase[1];
4119                                 origin[2] = 0;
4120                                 break;
4121                         }
4122                         Matrix4x4_FromVectors(&backmatrix, forward, left, up, origin);
4123 #endif
4124 #define LM_DIST_EPSILON (1.0f / 32.0f)
4125                         for (y = 0;y < triangle->lmsize[1];y++)
4126                         {
4127                                 pixeloffset = ((triangle->lightmapindex * lm_texturesize + y + triangle->lmoffset[1]) * lm_texturesize + triangle->lmoffset[0]) * 4;
4128                                 for (x = 0;x < triangle->lmsize[0];x++, pixeloffset += 4)
4129                                 {
4130                                         samplecenter[axis1] = (x+0.5f)*lmiscale[0] + triangle->lmbase[0];
4131                                         samplecenter[axis2] = (y+0.5f)*lmiscale[1] + triangle->lmbase[1];
4132                                         samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4133                                         VectorMA(samplecenter, 0.125f, samplenormal, samplecenter);
4134                                         Mod_GenerateLightmaps_LightmapSample(samplecenter, samplenormal, lightmappixels + pixeloffset, deluxemappixels + pixeloffset);
4135                                 }
4136                         }
4137                 }
4138         }
4139
4140         for (lightmapindex = 0;lightmapindex < model->brushq3.num_mergedlightmaps;lightmapindex++)
4141         {
4142                 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);
4143                 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);
4144         }
4145
4146         if (lightmappixels)
4147                 Mem_Free(lightmappixels);
4148         if (deluxemappixels)
4149                 Mem_Free(deluxemappixels);
4150
4151         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4152         {
4153                 surface = model->data_surfaces + surfaceindex;
4154                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4155                 if (!surface->num_triangles)
4156                         continue;
4157                 lightmapindex = mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle].lightmapindex;
4158                 surface->lightmaptexture = model->brushq3.data_lightmaps[lightmapindex];
4159                 surface->deluxemaptexture = model->brushq3.data_deluxemaps[lightmapindex];
4160                 surface->lightmapinfo = NULL;
4161         }
4162
4163         model->brush.LightPoint = Mod_GenerateLightmaps_LightPoint;
4164         model->brushq1.lightdata = NULL;
4165         model->brushq1.lightmapupdateflags = NULL;
4166         model->brushq1.firstrender = false;
4167         model->brushq1.num_lightstyles = 0;
4168         model->brushq1.data_lightstyleinfo = NULL;
4169         for (i = 0;i < model->brush.numsubmodels;i++)
4170         {
4171                 model->brush.submodels[i]->brushq1.lightmapupdateflags = NULL;
4172                 model->brush.submodels[i]->brushq1.firstrender = false;
4173                 model->brush.submodels[i]->brushq1.num_lightstyles = 0;
4174                 model->brush.submodels[i]->brushq1.data_lightstyleinfo = NULL;
4175         }
4176 }
4177
4178 static void Mod_GenerateLightmaps_UpdateVertexColors(dp_model_t *model)
4179 {
4180         int i;
4181         for (i = 0;i < model->surfmesh.num_vertices;i++)
4182                 Mod_GenerateLightmaps_VertexSample(model->surfmesh.data_vertex3f + 3*i, model->surfmesh.data_normal3f + 3*i, model->surfmesh.data_lightmapcolor4f + 4*i);
4183 }
4184
4185 static void Mod_GenerateLightmaps_UpdateLightGrid(dp_model_t *model)
4186 {
4187         int x;
4188         int y;
4189         int z;
4190         int index = 0;
4191         float pos[3];
4192         for (z = 0;z < model->brushq3.num_lightgrid_isize[2];z++)
4193         {
4194                 pos[2] = (model->brushq3.num_lightgrid_imins[2] + z + 0.5f) * model->brushq3.num_lightgrid_cellsize[2];
4195                 for (y = 0;y < model->brushq3.num_lightgrid_isize[1];y++)
4196                 {
4197                         pos[1] = (model->brushq3.num_lightgrid_imins[1] + y + 0.5f) * model->brushq3.num_lightgrid_cellsize[1];
4198                         for (x = 0;x < model->brushq3.num_lightgrid_isize[0];x++, index++)
4199                         {
4200                                 pos[0] = (model->brushq3.num_lightgrid_imins[0] + x + 0.5f) * model->brushq3.num_lightgrid_cellsize[0];
4201                                 Mod_GenerateLightmaps_GridSample(pos, model->brushq3.data_lightgrid + index);
4202                         }
4203                 }
4204         }
4205 }
4206
4207 extern cvar_t mod_q3bsp_nolightmaps;
4208 static void Mod_GenerateLightmaps(dp_model_t *model)
4209 {
4210         //lightmaptriangle_t *lightmaptriangles = Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4211         dp_model_t *oldloadmodel = loadmodel;
4212         loadmodel = model;
4213
4214         Mod_GenerateLightmaps_InitSampleOffsets(model);
4215         Mod_GenerateLightmaps_DestroyLightmaps(model);
4216         Mod_GenerateLightmaps_UnweldTriangles(model);
4217         Mod_GenerateLightmaps_CreateTriangleInformation(model);
4218         Mod_GenerateLightmaps_CreateLights(model);
4219         if(!mod_q3bsp_nolightmaps.integer)
4220                 Mod_GenerateLightmaps_CreateLightmaps(model);
4221         Mod_GenerateLightmaps_UpdateVertexColors(model);
4222         Mod_GenerateLightmaps_UpdateLightGrid(model);
4223         Mod_GenerateLightmaps_DestroyLights(model);
4224         Mod_GenerateLightmaps_DestroyTriangleInformation(model);
4225
4226         loadmodel = oldloadmodel;
4227 }
4228
4229 static void Mod_GenerateLightmaps_f(void)
4230 {
4231         if (Cmd_Argc() != 1)
4232         {
4233                 Con_Printf("usage: mod_generatelightmaps\n");
4234                 return;
4235         }
4236         if (!cl.worldmodel)
4237         {
4238                 Con_Printf("no worldmodel loaded\n");
4239                 return;
4240         }
4241         Mod_GenerateLightmaps(cl.worldmodel);
4242 }