model_shared.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // models.c -- model loading and caching
  21
  22 // models are the only shared resource between a client and server running
  23 // on the same machine.
  24
  25 #include "quakedef.h"
  26 #include "image.h"
  27 #include "r_shadow.h"
  28 #include "polygon.h"
  29
  30 cvar_t r_enableshadowvolumes = {CVAR_SAVE, "r_enableshadowvolumes", "1", "Enables use of Stencil Shadow Volume shadowing methods, saves some memory if turned off"};
  31 cvar_t r_mipskins = {CVAR_SAVE, "r_mipskins", "0", "mipmaps model skins so they render faster in the distance and do not display noise artifacts, can cause discoloration of skins if they contain undesirable border colors"};
  32 cvar_t r_mipnormalmaps = {CVAR_SAVE, "r_mipnormalmaps", "1", "mipmaps normalmaps (turning it off looks sharper but may have aliasing)"};
  33 cvar_t mod_generatelightmaps_unitspersample = {CVAR_SAVE, "mod_generatelightmaps_unitspersample", "8", "lightmap resolution"};
  34 cvar_t mod_generatelightmaps_borderpixels = {CVAR_SAVE, "mod_generatelightmaps_borderpixels", "2", "extra space around polygons to prevent sampling artifacts"};
  35 cvar_t mod_generatelightmaps_texturesize = {CVAR_SAVE, "mod_generatelightmaps_texturesize", "1024", "size of lightmap textures"};
  36 cvar_t mod_generatelightmaps_lightmapsamples = {CVAR_SAVE, "mod_generatelightmaps_lightmapsamples", "16", "number of shadow tests done per lightmap pixel"};
  37 cvar_t mod_generatelightmaps_vertexsamples = {CVAR_SAVE, "mod_generatelightmaps_vertexsamples", "16", "number of shadow tests done per vertex"};
  38 cvar_t mod_generatelightmaps_gridsamples = {CVAR_SAVE, "mod_generatelightmaps_gridsamples", "64", "number of shadow tests done per lightgrid cell"};
  39 cvar_t mod_generatelightmaps_lightmapradius = {CVAR_SAVE, "mod_generatelightmaps_lightmapradius", "16", "sampling area around each lightmap pixel"};
  40 cvar_t mod_generatelightmaps_vertexradius = {CVAR_SAVE, "mod_generatelightmaps_vertexradius", "16", "sampling area around each vertex"};
  41 cvar_t mod_generatelightmaps_gridradius = {CVAR_SAVE, "mod_generatelightmaps_gridradius", "64", "sampling area around each lightgrid cell center"};
  42
  43 dp_model_t *loadmodel;
  44
  45 static mempool_t *mod_mempool;
  46 static memexpandablearray_t models;
  47
  48 static mempool_t* q3shaders_mem;
  49 typedef struct q3shader_hash_entry_s
  50 {
  51   q3shaderinfo_t shader;
  52   struct q3shader_hash_entry_s* chain;
  53 } q3shader_hash_entry_t;
  54 #define Q3SHADER_HASH_SIZE  1021
  55 typedef struct q3shader_data_s
  56 {
  57   memexpandablearray_t hash_entries;
  58   q3shader_hash_entry_t hash[Q3SHADER_HASH_SIZE];
  59   memexpandablearray_t char_ptrs;
  60 } q3shader_data_t;
  61 static q3shader_data_t* q3shader_data;
  62
  63 static void mod_start(void)
  64 {
  65         int i, count;
  66         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  67         dp_model_t *mod;
  68
  69         SCR_PushLoadingScreen(false, "Loading models", 1.0);
  70         count = 0;
  71         for (i = 0;i < nummodels;i++)
  72                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  73                         if (mod->used)
  74                                 ++count;
  75         for (i = 0;i < nummodels;i++)
  76                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
  77                         if (mod->used)
  78                         {
  79                                 SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
  80                                 Mod_LoadModel(mod, true, false);
  81                                 SCR_PopLoadingScreen(false);
  82                         }
  83         SCR_PopLoadingScreen(false);
  84 }
  85
  86 static void mod_shutdown(void)
  87 {
  88         int i;
  89         int nummodels = Mem_ExpandableArray_IndexRange(&models);
  90         dp_model_t *mod;
  91
  92         for (i = 0;i < nummodels;i++)
  93                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && (mod->loaded || mod->mempool))
  94                         Mod_UnloadModel(mod);
  95
  96         Mod_FreeQ3Shaders();
  97         Mod_Skeletal_FreeBuffers();
  98 }
  99
 100 static void mod_newmap(void)
 101 {
 102         msurface_t *surface;
 103         int i, j, k, surfacenum, ssize, tsize;
 104         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 105         dp_model_t *mod;
 106
 107         for (i = 0;i < nummodels;i++)
 108         {
 109                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool)
 110                 {
 111                         for (j = 0;j < mod->num_textures && mod->data_textures;j++)
 112                         {
 113                                 for (k = 0;k < mod->data_textures[j].numskinframes;k++)
 114                                         R_SkinFrame_MarkUsed(mod->data_textures[j].skinframes[k]);
 115                                 for (k = 0;k < mod->data_textures[j].backgroundnumskinframes;k++)
 116                                         R_SkinFrame_MarkUsed(mod->data_textures[j].backgroundskinframes[k]);
 117                         }
 118                         if (mod->brush.solidskyskinframe)
 119                                 R_SkinFrame_MarkUsed(mod->brush.solidskyskinframe);
 120                         if (mod->brush.alphaskyskinframe)
 121                                 R_SkinFrame_MarkUsed(mod->brush.alphaskyskinframe);
 122                 }
 123         }
 124
 125         if (!cl_stainmaps_clearonload.integer)
 126                 return;
 127
 128         for (i = 0;i < nummodels;i++)
 129         {
 130                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->mempool && mod->data_surfaces)
 131                 {
 132                         for (surfacenum = 0, surface = mod->data_surfaces;surfacenum < mod->num_surfaces;surfacenum++, surface++)
 133                         {
 134                                 if (surface->lightmapinfo && surface->lightmapinfo->stainsamples)
 135                                 {
 136                                         ssize = (surface->lightmapinfo->extents[0] >> 4) + 1;
 137                                         tsize = (surface->lightmapinfo->extents[1] >> 4) + 1;
 138                                         memset(surface->lightmapinfo->stainsamples, 255, ssize * tsize * 3);
 139                                         mod->brushq1.lightmapupdateflags[surfacenum] = true;
 140                                 }
 141                         }
 142                 }
 143         }
 144 }
 145
 146 /*
 147 ===============
 148 Mod_Init
 149 ===============
 150 */
 151 static void Mod_Print(void);
 152 static void Mod_Precache (void);
 153 static void Mod_Decompile_f(void);
 154 static void Mod_GenerateLightmaps_f(void);
 155 void Mod_Init (void)
 156 {
 157         mod_mempool = Mem_AllocPool("modelinfo", 0, NULL);
 158         Mem_ExpandableArray_NewArray(&models, mod_mempool, sizeof(dp_model_t), 16);
 159
 160         Mod_BrushInit();
 161         Mod_AliasInit();
 162         Mod_SpriteInit();
 163
 164         Cvar_RegisterVariable(&r_enableshadowvolumes);
 165         Cvar_RegisterVariable(&r_mipskins);
 166         Cvar_RegisterVariable(&r_mipnormalmaps);
 167         Cvar_RegisterVariable(&mod_generatelightmaps_unitspersample);
 168         Cvar_RegisterVariable(&mod_generatelightmaps_borderpixels);
 169         Cvar_RegisterVariable(&mod_generatelightmaps_texturesize);
 170
 171         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapsamples);
 172         Cvar_RegisterVariable(&mod_generatelightmaps_vertexsamples);
 173         Cvar_RegisterVariable(&mod_generatelightmaps_gridsamples);
 174         Cvar_RegisterVariable(&mod_generatelightmaps_lightmapradius);
 175         Cvar_RegisterVariable(&mod_generatelightmaps_vertexradius);
 176         Cvar_RegisterVariable(&mod_generatelightmaps_gridradius);
 177
 178         Cmd_AddCommand ("modellist", Mod_Print, "prints a list of loaded models");
 179         Cmd_AddCommand ("modelprecache", Mod_Precache, "load a model");
 180         Cmd_AddCommand ("modeldecompile", Mod_Decompile_f, "exports a model in several formats for editing purposes");
 181         Cmd_AddCommand ("mod_generatelightmaps", Mod_GenerateLightmaps_f, "rebuilds lighting on current worldmodel");
 182 }
 183
 184 void Mod_RenderInit(void)
 185 {
 186         R_RegisterModule("Models", mod_start, mod_shutdown, mod_newmap, NULL, NULL);
 187 }
 188
 189 void Mod_UnloadModel (dp_model_t *mod)
 190 {
 191         char name[MAX_QPATH];
 192         qboolean used;
 193         dp_model_t *parentmodel;
 194
 195         if (developer_loading.integer)
 196                 Con_Printf("unloading model %s\n", mod->name);
 197
 198         strlcpy(name, mod->name, sizeof(name));
 199         parentmodel = mod->brush.parentmodel;
 200         used = mod->used;
 201         if (mod->mempool)
 202         {
 203                 if (mod->surfmesh.vertex3fbuffer)
 204                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.vertex3fbuffer);
 205                 mod->surfmesh.vertex3fbuffer = NULL;
 206                 if (mod->surfmesh.vertexmeshbuffer)
 207                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.vertexmeshbuffer);
 208                 mod->surfmesh.vertexmeshbuffer = NULL;
 209                 if (mod->surfmesh.data_element3i_indexbuffer)
 210                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3i_indexbuffer);
 211                 mod->surfmesh.data_element3i_indexbuffer = NULL;
 212                 if (mod->surfmesh.data_element3s_indexbuffer)
 213                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3s_indexbuffer);
 214                 mod->surfmesh.data_element3s_indexbuffer = NULL;
 215                 if (mod->surfmesh.vbo_vertexbuffer)
 216                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.vbo_vertexbuffer);
 217                 mod->surfmesh.vbo_vertexbuffer = NULL;
 218         }
 219         // free textures/memory attached to the model
 220         R_FreeTexturePool(&mod->texturepool);
 221         Mem_FreePool(&mod->mempool);
 222         // clear the struct to make it available
 223         memset(mod, 0, sizeof(dp_model_t));
 224         // restore the fields we want to preserve
 225         strlcpy(mod->name, name, sizeof(mod->name));
 226         mod->brush.parentmodel = parentmodel;
 227         mod->used = used;
 228         mod->loaded = false;
 229 }
 230
 231 static void R_Model_Null_Draw(entity_render_t *ent)
 232 {
 233         return;
 234 }
 235
 236
 237 typedef void (*mod_framegroupify_parsegroups_t) (unsigned int i, int start, int len, float fps, qboolean loop, const char *name, void *pass);
 238
 239 static int Mod_FrameGroupify_ParseGroups(const char *buf, mod_framegroupify_parsegroups_t cb, void *pass)
 240 {
 241         const char *bufptr;
 242         int start, len;
 243         float fps;
 244         unsigned int i;
 245         qboolean loop;
 246         char name[64];
 247
 248         bufptr = buf;
 249         i = 0;
 250         while(bufptr)
 251         {
 252                 // an anim scene!
 253
 254                 // REQUIRED: fetch start
 255                 COM_ParseToken_Simple(&bufptr, true, false, true);
 256                 if (!bufptr)
 257                         break; // end of file
 258                 if (!strcmp(com_token, "\n"))
 259                         continue; // empty line
 260                 start = atoi(com_token);
 261
 262                 // REQUIRED: fetch length
 263                 COM_ParseToken_Simple(&bufptr, true, false, true);
 264                 if (!bufptr || !strcmp(com_token, "\n"))
 265                 {
 266                         Con_Printf("framegroups file: missing number of frames\n");
 267                         continue;
 268                 }
 269                 len = atoi(com_token);
 270
 271                 // OPTIONAL args start
 272                 COM_ParseToken_Simple(&bufptr, true, false, true);
 273
 274                 // OPTIONAL: fetch fps
 275                 fps = 20;
 276                 if (bufptr && strcmp(com_token, "\n"))
 277                 {
 278                         fps = atof(com_token);
 279                         COM_ParseToken_Simple(&bufptr, true, false, true);
 280                 }
 281
 282                 // OPTIONAL: fetch loopflag
 283                 loop = true;
 284                 if (bufptr && strcmp(com_token, "\n"))
 285                 {
 286                         loop = (atoi(com_token) != 0);
 287                         COM_ParseToken_Simple(&bufptr, true, false, true);
 288                 }
 289
 290                 // OPTIONAL: fetch name
 291                 name[0] = 0;
 292                 if (bufptr && strcmp(com_token, "\n"))
 293                 {
 294                         strlcpy(name, com_token, sizeof(name));
 295                         COM_ParseToken_Simple(&bufptr, true, false, true);
 296                 }
 297
 298                 // OPTIONAL: remaining unsupported tokens (eat them)
 299                 while (bufptr && strcmp(com_token, "\n"))
 300                         COM_ParseToken_Simple(&bufptr, true, false, true);
 301
 302                 //Con_Printf("data: %d %d %d %f %d (%s)\n", i, start, len, fps, loop, name);
 303
 304                 if(cb)
 305                         cb(i, start, len, fps, loop, (name[0] ? name : NULL), pass);
 306                 ++i;
 307         }
 308
 309         return i;
 310 }
 311
 312 static void Mod_FrameGroupify_ParseGroups_Store (unsigned int i, int start, int len, float fps, qboolean loop, const char *name, void *pass)
 313 {
 314         dp_model_t *mod = (dp_model_t *) pass;
 315         animscene_t *anim = &mod->animscenes[i];
 316         if(name)
 317                 strlcpy(anim->name, name, sizeof(anim[i].name));
 318         else
 319                 dpsnprintf(anim->name, sizeof(anim[i].name), "groupified_%d_anim", i);
 320         anim->firstframe = bound(0, start, mod->num_poses - 1);
 321         anim->framecount = bound(1, len, mod->num_poses - anim->firstframe);
 322         anim->framerate = max(1, fps);
 323         anim->loop = !!loop;
 324         //Con_Printf("frame group %d is %d %d %f %d\n", i, start, len, fps, loop);
 325 }
 326
 327 static void Mod_FrameGroupify(dp_model_t *mod, const char *buf)
 328 {
 329         unsigned int cnt;
 330
 331         // 0. count
 332         cnt = Mod_FrameGroupify_ParseGroups(buf, NULL, NULL);
 333         if(!cnt)
 334         {
 335                 Con_Printf("no scene found in framegroups file, aborting\n");
 336                 return;
 337         }
 338         mod->numframes = cnt;
 339
 340         // 1. reallocate
 341         // (we do not free the previous animscenes, but model unloading will free the pool owning them, so it's okay)
 342         mod->animscenes = (animscene_t *) Mem_Alloc(mod->mempool, sizeof(animscene_t) * mod->numframes);
 343
 344         // 2. parse
 345         Mod_FrameGroupify_ParseGroups(buf, Mod_FrameGroupify_ParseGroups_Store, mod);
 346 }
 347
 348 static void Mod_FindPotentialDeforms(dp_model_t *mod)
 349 {
 350         int i, j;
 351         texture_t *texture;
 352         mod->wantnormals = false;
 353         mod->wanttangents = false;
 354         for (i = 0;i < mod->num_textures;i++)
 355         {
 356                 texture = mod->data_textures + i;
 357                 if (texture->tcgen.tcgen == Q3TCGEN_ENVIRONMENT)
 358                         mod->wantnormals = true;
 359                 for (j = 0;j < Q3MAXDEFORMS;j++)
 360                 {
 361                         if (texture->deforms[j].deform == Q3DEFORM_AUTOSPRITE)
 362                         {
 363                                 mod->wanttangents = true;
 364                                 mod->wantnormals = true;
 365                                 break;
 366                         }
 367                         if (texture->deforms[j].deform != Q3DEFORM_NONE)
 368                                 mod->wantnormals = true;
 369                 }
 370         }
 371 }
 372
 373 /*
 374 ==================
 375 Mod_LoadModel
 376
 377 Loads a model
 378 ==================
 379 */
 380 dp_model_t *Mod_LoadModel(dp_model_t *mod, qboolean crash, qboolean checkdisk)
 381 {
 382         int num;
 383         unsigned int crc;
 384         void *buf;
 385         fs_offset_t filesize = 0;
 386         char vabuf[1024];
 387
 388         mod->used = true;
 389
 390         if (mod->name[0] == '*') // submodel
 391                 return mod;
 392
 393         if (!strcmp(mod->name, "null"))
 394         {
 395                 if(mod->loaded)
 396                         return mod;
 397
 398                 if (mod->loaded || mod->mempool)
 399                         Mod_UnloadModel(mod);
 400
 401                 if (developer_loading.integer)
 402                         Con_Printf("loading model %s\n", mod->name);
 403
 404                 mod->used = true;
 405                 mod->crc = (unsigned int)-1;
 406                 mod->loaded = false;
 407
 408                 VectorClear(mod->normalmins);
 409                 VectorClear(mod->normalmaxs);
 410                 VectorClear(mod->yawmins);
 411                 VectorClear(mod->yawmaxs);
 412                 VectorClear(mod->rotatedmins);
 413                 VectorClear(mod->rotatedmaxs);
 414
 415                 mod->modeldatatypestring = "null";
 416                 mod->type = mod_null;
 417                 mod->Draw = R_Model_Null_Draw;
 418                 mod->numframes = 2;
 419                 mod->numskins = 1;
 420
 421                 // no fatal errors occurred, so this model is ready to use.
 422                 mod->loaded = true;
 423
 424                 return mod;
 425         }
 426
 427         crc = 0;
 428         buf = NULL;
 429
 430         // even if the model is loaded it still may need reloading...
 431
 432         // if it is not loaded or checkdisk is true we need to calculate the crc
 433         if (!mod->loaded || checkdisk)
 434         {
 435                 if (checkdisk && mod->loaded)
 436                         Con_DPrintf("checking model %s\n", mod->name);
 437                 buf = FS_LoadFile (mod->name, tempmempool, false, &filesize);
 438                 if (buf)
 439                 {
 440                         crc = CRC_Block((unsigned char *)buf, filesize);
 441                         // we need to reload the model if the crc does not match
 442                         if (mod->crc != crc)
 443                                 mod->loaded = false;
 444                 }
 445         }
 446
 447         // if the model is already loaded and checks passed, just return
 448         if (mod->loaded)
 449         {
 450                 if (buf)
 451                         Mem_Free(buf);
 452                 return mod;
 453         }
 454
 455         if (developer_loading.integer)
 456                 Con_Printf("loading model %s\n", mod->name);
 457
 458         SCR_PushLoadingScreen(true, mod->name, 1);
 459
 460         // LordHavoc: unload the existing model in this slot (if there is one)
 461         if (mod->loaded || mod->mempool)
 462                 Mod_UnloadModel(mod);
 463
 464         // load the model
 465         mod->used = true;
 466         mod->crc = crc;
 467         // errors can prevent the corresponding mod->loaded = true;
 468         mod->loaded = false;
 469
 470         // default lightmap scale
 471         mod->lightmapscale = 1;
 472
 473         // default model radius and bounding box (mainly for missing models)
 474         mod->radius = 16;
 475         VectorSet(mod->normalmins, -mod->radius, -mod->radius, -mod->radius);
 476         VectorSet(mod->normalmaxs, mod->radius, mod->radius, mod->radius);
 477         VectorSet(mod->yawmins, -mod->radius, -mod->radius, -mod->radius);
 478         VectorSet(mod->yawmaxs, mod->radius, mod->radius, mod->radius);
 479         VectorSet(mod->rotatedmins, -mod->radius, -mod->radius, -mod->radius);
 480         VectorSet(mod->rotatedmaxs, mod->radius, mod->radius, mod->radius);
 481
 482         if (!q3shaders_mem)
 483         {
 484                 // load q3 shaders for the first time, or after a level change
 485                 Mod_LoadQ3Shaders();
 486         }
 487
 488         if (buf)
 489         {
 490                 char *bufend = (char *)buf + filesize;
 491
 492                 // all models use memory, so allocate a memory pool
 493                 mod->mempool = Mem_AllocPool(mod->name, 0, NULL);
 494
 495                 num = LittleLong(*((int *)buf));
 496                 // call the apropriate loader
 497                 loadmodel = mod;
 498                 if (!strcasecmp(FS_FileExtension(mod->name), "obj")) Mod_OBJ_Load(mod, buf, bufend);
 499                 else if (!memcmp(buf, "IDPO", 4)) Mod_IDP0_Load(mod, buf, bufend);
 500                 else if (!memcmp(buf, "IDP2", 4)) Mod_IDP2_Load(mod, buf, bufend);
 501                 else if (!memcmp(buf, "IDP3", 4)) Mod_IDP3_Load(mod, buf, bufend);
 502                 else if (!memcmp(buf, "IDSP", 4)) Mod_IDSP_Load(mod, buf, bufend);
 503                 else if (!memcmp(buf, "IDS2", 4)) Mod_IDS2_Load(mod, buf, bufend);
 504                 else if (!memcmp(buf, "IBSP", 4)) Mod_IBSP_Load(mod, buf, bufend);
 505                 else if (!memcmp(buf, "ZYMOTICMODEL", 12)) Mod_ZYMOTICMODEL_Load(mod, buf, bufend);
 506                 else if (!memcmp(buf, "DARKPLACESMODEL", 16)) Mod_DARKPLACESMODEL_Load(mod, buf, bufend);
 507                 else if (!memcmp(buf, "ACTRHEAD", 8)) Mod_PSKMODEL_Load(mod, buf, bufend);
 508                 else if (!memcmp(buf, "INTERQUAKEMODEL", 16)) Mod_INTERQUAKEMODEL_Load(mod, buf, bufend);
 509                 else if (strlen(mod->name) >= 4 && !strcmp(mod->name + strlen(mod->name) - 4, ".map")) Mod_MAP_Load(mod, buf, bufend);
 510                 else if (num == BSPVERSION || num == 30) Mod_Q1BSP_Load(mod, buf, bufend);
 511                 else Con_Printf("Mod_LoadModel: model \"%s\" is of unknown/unsupported type\n", mod->name);
 512                 Mem_Free(buf);
 513
 514                 Mod_FindPotentialDeforms(mod);
 515
 516                 buf = FS_LoadFile(va(vabuf, sizeof(vabuf), "%s.framegroups", mod->name), tempmempool, false, &filesize);
 517                 if(buf)
 518                 {
 519                         Mod_FrameGroupify(mod, (const char *)buf);
 520                         Mem_Free(buf);
 521                 }
 522
 523                 Mod_BuildVBOs();
 524         }
 525         else if (crash)
 526         {
 527                 // LordHavoc: Sys_Error was *ANNOYING*
 528                 Con_Printf ("Mod_LoadModel: %s not found\n", mod->name);
 529         }
 530
 531         // no fatal errors occurred, so this model is ready to use.
 532         mod->loaded = true;
 533
 534         SCR_PopLoadingScreen(false);
 535
 536         return mod;
 537 }
 538
 539 void Mod_ClearUsed(void)
 540 {
 541         int i;
 542         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 543         dp_model_t *mod;
 544         for (i = 0;i < nummodels;i++)
 545                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0])
 546                         mod->used = false;
 547 }
 548
 549 void Mod_PurgeUnused(void)
 550 {
 551         int i;
 552         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 553         dp_model_t *mod;
 554         for (i = 0;i < nummodels;i++)
 555         {
 556                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !mod->used)
 557                 {
 558                         Mod_UnloadModel(mod);
 559                         Mem_ExpandableArray_FreeRecord(&models, mod);
 560                 }
 561         }
 562 }
 563
 564 /*
 565 ==================
 566 Mod_FindName
 567
 568 ==================
 569 */
 570 dp_model_t *Mod_FindName(const char *name, const char *parentname)
 571 {
 572         int i;
 573         int nummodels;
 574         dp_model_t *mod;
 575
 576         if (!parentname)
 577                 parentname = "";
 578
 579         // if we're not dedicatd, the renderer calls will crash without video
 580         Host_StartVideo();
 581
 582         nummodels = Mem_ExpandableArray_IndexRange(&models);
 583
 584         if (!name[0])
 585                 Host_Error ("Mod_ForName: NULL name");
 586
 587         // search the currently loaded models
 588         for (i = 0;i < nummodels;i++)
 589         {
 590                 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))))
 591                 {
 592                         mod->used = true;
 593                         return mod;
 594                 }
 595         }
 596
 597         // no match found, create a new one
 598         mod = (dp_model_t *) Mem_ExpandableArray_AllocRecord(&models);
 599         strlcpy(mod->name, name, sizeof(mod->name));
 600         if (parentname[0])
 601                 mod->brush.parentmodel = Mod_FindName(parentname, NULL);
 602         else
 603                 mod->brush.parentmodel = NULL;
 604         mod->loaded = false;
 605         mod->used = true;
 606         return mod;
 607 }
 608
 609 /*
 610 ==================
 611 Mod_ForName
 612
 613 Loads in a model for the given name
 614 ==================
 615 */
 616 dp_model_t *Mod_ForName(const char *name, qboolean crash, qboolean checkdisk, const char *parentname)
 617 {
 618         dp_model_t *model;
 619         model = Mod_FindName(name, parentname);
 620         if (!model->loaded || checkdisk)
 621                 Mod_LoadModel(model, crash, checkdisk);
 622         return model;
 623 }
 624
 625 /*
 626 ==================
 627 Mod_Reload
 628
 629 Reloads all models if they have changed
 630 ==================
 631 */
 632 void Mod_Reload(void)
 633 {
 634         int i, count;
 635         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 636         dp_model_t *mod;
 637
 638         SCR_PushLoadingScreen(false, "Reloading models", 1.0);
 639         count = 0;
 640         for (i = 0;i < nummodels;i++)
 641                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 642                         ++count;
 643         for (i = 0;i < nummodels;i++)
 644                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 645                 {
 646                         SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
 647                         Mod_LoadModel(mod, true, true);
 648                         SCR_PopLoadingScreen(false);
 649                 }
 650         SCR_PopLoadingScreen(false);
 651 }
 652
 653 unsigned char *mod_base;
 654
 655
 656 //=============================================================================
 657
 658 /*
 659 ================
 660 Mod_Print
 661 ================
 662 */
 663 static void Mod_Print(void)
 664 {
 665         int i;
 666         int nummodels = Mem_ExpandableArray_IndexRange(&models);
 667         dp_model_t *mod;
 668
 669         Con_Print("Loaded models:\n");
 670         for (i = 0;i < nummodels;i++)
 671         {
 672                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
 673                 {
 674                         if (mod->brush.numsubmodels)
 675                                 Con_Printf("%4iK %s (%i submodels)\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name, mod->brush.numsubmodels);
 676                         else
 677                                 Con_Printf("%4iK %s\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name);
 678                 }
 679         }
 680 }
 681
 682 /*
 683 ================
 684 Mod_Precache
 685 ================
 686 */
 687 static void Mod_Precache(void)
 688 {
 689         if (Cmd_Argc() == 2)
 690                 Mod_ForName(Cmd_Argv(1), false, true, Cmd_Argv(1)[0] == '*' ? cl.model_name[1] : NULL);
 691         else
 692                 Con_Print("usage: modelprecache <filename>\n");
 693 }
 694
 695 int Mod_BuildVertexRemapTableFromElements(int numelements, const int *elements, int numvertices, int *remapvertices)
 696 {
 697         int i, count;
 698         unsigned char *used;
 699         used = (unsigned char *)Mem_Alloc(tempmempool, numvertices);
 700         memset(used, 0, numvertices);
 701         for (i = 0;i < numelements;i++)
 702                 used[elements[i]] = 1;
 703         for (i = 0, count = 0;i < numvertices;i++)
 704                 remapvertices[i] = used[i] ? count++ : -1;
 705         Mem_Free(used);
 706         return count;
 707 }
 708
 709 #if 1
 710 // fast way, using an edge hash
 711 #define TRIANGLEEDGEHASH 8192
 712 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 713 {
 714         int i, j, p, e1, e2, *n, hashindex, count, match;
 715         const int *e;
 716         typedef struct edgehashentry_s
 717         {
 718                 struct edgehashentry_s *next;
 719                 int triangle;
 720                 int element[2];
 721         }
 722         edgehashentry_t;
 723         static edgehashentry_t **edgehash;
 724         edgehashentry_t *edgehashentries, *hash;
 725         if (!numtriangles)
 726                 return;
 727         edgehash = (edgehashentry_t **)Mem_Alloc(tempmempool, TRIANGLEEDGEHASH * sizeof(*edgehash));
 728         // if there are too many triangles for the stack array, allocate larger buffer
 729         edgehashentries = (edgehashentry_t *)Mem_Alloc(tempmempool, numtriangles * 3 * sizeof(edgehashentry_t));
 730         // find neighboring triangles
 731         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 732         {
 733                 for (j = 0, p = 2;j < 3;p = j, j++)
 734                 {
 735                         e1 = e[p];
 736                         e2 = e[j];
 737                         // this hash index works for both forward and backward edges
 738                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 739                         hash = edgehashentries + i * 3 + j;
 740                         hash->next = edgehash[hashindex];
 741                         edgehash[hashindex] = hash;
 742                         hash->triangle = i;
 743                         hash->element[0] = e1;
 744                         hash->element[1] = e2;
 745                 }
 746         }
 747         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 748         {
 749                 for (j = 0, p = 2;j < 3;p = j, j++)
 750                 {
 751                         e1 = e[p];
 752                         e2 = e[j];
 753                         // this hash index works for both forward and backward edges
 754                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 755                         count = 0;
 756                         match = -1;
 757                         for (hash = edgehash[hashindex];hash;hash = hash->next)
 758                         {
 759                                 if (hash->element[0] == e2 && hash->element[1] == e1)
 760                                 {
 761                                         if (hash->triangle != i)
 762                                                 match = hash->triangle;
 763                                         count++;
 764                                 }
 765                                 else if ((hash->element[0] == e1 && hash->element[1] == e2))
 766                                         count++;
 767                         }
 768                         // detect edges shared by three triangles and make them seams
 769                         if (count > 2)
 770                                 match = -1;
 771                         n[p] = match;
 772                 }
 773
 774                 // also send a keepalive here (this can take a while too!)
 775                 CL_KeepaliveMessage(false);
 776         }
 777         // free the allocated buffer
 778         Mem_Free(edgehashentries);
 779         Mem_Free(edgehash);
 780 }
 781 #else
 782 // very slow but simple way
 783 static int Mod_FindTriangleWithEdge(const int *elements, int numtriangles, int start, int end, int ignore)
 784 {
 785         int i, match, count;
 786         count = 0;
 787         match = -1;
 788         for (i = 0;i < numtriangles;i++, elements += 3)
 789         {
 790                      if ((elements[0] == start && elements[1] == end)
 791                       || (elements[1] == start && elements[2] == end)
 792                       || (elements[2] == start && elements[0] == end))
 793                 {
 794                         if (i != ignore)
 795                                 match = i;
 796                         count++;
 797                 }
 798                 else if ((elements[1] == start && elements[0] == end)
 799                       || (elements[2] == start && elements[1] == end)
 800                       || (elements[0] == start && elements[2] == end))
 801                         count++;
 802         }
 803         // detect edges shared by three triangles and make them seams
 804         if (count > 2)
 805                 match = -1;
 806         return match;
 807 }
 808
 809 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 810 {
 811         int i, *n;
 812         const int *e;
 813         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 814         {
 815                 n[0] = Mod_FindTriangleWithEdge(elements, numtriangles, e[1], e[0], i);
 816                 n[1] = Mod_FindTriangleWithEdge(elements, numtriangles, e[2], e[1], i);
 817                 n[2] = Mod_FindTriangleWithEdge(elements, numtriangles, e[0], e[2], i);
 818         }
 819 }
 820 #endif
 821
 822 void Mod_ValidateElements(int *elements, int numtriangles, int firstvertex, int numverts, const char *filename, int fileline)
 823 {
 824         int i, warned = false, endvertex = firstvertex + numverts;
 825         for (i = 0;i < numtriangles * 3;i++)
 826         {
 827                 if (elements[i] < firstvertex || elements[i] >= endvertex)
 828                 {
 829                         if (!warned)
 830                         {
 831                                 warned = true;
 832                                 Con_Printf("Mod_ValidateElements: out of bounds elements detected at %s:%d\n", filename, fileline);
 833                         }
 834                         elements[i] = firstvertex;
 835                 }
 836         }
 837 }
 838
 839 // warning: this is an expensive function!
 840 void Mod_BuildNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const int *elements, float *normal3f, qboolean areaweighting)
 841 {
 842         int i, j;
 843         const int *element;
 844         float *vectorNormal;
 845         float areaNormal[3];
 846         // clear the vectors
 847         memset(normal3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 848         // process each vertex of each triangle and accumulate the results
 849         // use area-averaging, to make triangles with a big area have a bigger
 850         // weighting on the vertex normal than triangles with a small area
 851         // to do so, just add the 'normals' together (the bigger the area
 852         // the greater the length of the normal is
 853         element = elements;
 854         for (i = 0; i < numtriangles; i++, element += 3)
 855         {
 856                 TriangleNormal(
 857                         vertex3f + element[0] * 3,
 858                         vertex3f + element[1] * 3,
 859                         vertex3f + element[2] * 3,
 860                         areaNormal
 861                         );
 862
 863                 if (!areaweighting)
 864                         VectorNormalize(areaNormal);
 865
 866                 for (j = 0;j < 3;j++)
 867                 {
 868                         vectorNormal = normal3f + element[j] * 3;
 869                         vectorNormal[0] += areaNormal[0];
 870                         vectorNormal[1] += areaNormal[1];
 871                         vectorNormal[2] += areaNormal[2];
 872                 }
 873         }
 874         // and just normalize the accumulated vertex normal in the end
 875         vectorNormal = normal3f + 3 * firstvertex;
 876         for (i = 0; i < numvertices; i++, vectorNormal += 3)
 877                 VectorNormalize(vectorNormal);
 878 }
 879
 880 #if 0
 881 static void Mod_BuildBumpVectors(const float *v0, const float *v1, const float *v2, const float *tc0, const float *tc1, const float *tc2, float *svector3f, float *tvector3f, float *normal3f)
 882 {
 883         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 884         // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 885         // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 886
 887         // 6 multiply, 9 subtract
 888         VectorSubtract(v1, v0, v10);
 889         VectorSubtract(v2, v0, v20);
 890         normal3f[0] = v20[1] * v10[2] - v20[2] * v10[1];
 891         normal3f[1] = v20[2] * v10[0] - v20[0] * v10[2];
 892         normal3f[2] = v20[0] * v10[1] - v20[1] * v10[0];
 893         // 12 multiply, 10 subtract
 894         tc10[1] = tc1[1] - tc0[1];
 895         tc20[1] = tc2[1] - tc0[1];
 896         svector3f[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 897         svector3f[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 898         svector3f[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 899         tc10[0] = tc1[0] - tc0[0];
 900         tc20[0] = tc2[0] - tc0[0];
 901         tvector3f[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 902         tvector3f[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 903         tvector3f[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 904         // 12 multiply, 4 add, 6 subtract
 905         f = DotProduct(svector3f, normal3f);
 906         svector3f[0] -= f * normal3f[0];
 907         svector3f[1] -= f * normal3f[1];
 908         svector3f[2] -= f * normal3f[2];
 909         f = DotProduct(tvector3f, normal3f);
 910         tvector3f[0] -= f * normal3f[0];
 911         tvector3f[1] -= f * normal3f[1];
 912         tvector3f[2] -= f * normal3f[2];
 913         // if texture is mapped the wrong way (counterclockwise), the tangents
 914         // have to be flipped, this is detected by calculating a normal from the
 915         // two tangents, and seeing if it is opposite the surface normal
 916         // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 917         CrossProduct(tvector3f, svector3f, tangentcross);
 918         if (DotProduct(tangentcross, normal3f) < 0)
 919         {
 920                 VectorNegate(svector3f, svector3f);
 921                 VectorNegate(tvector3f, tvector3f);
 922         }
 923 }
 924 #endif
 925
 926 // warning: this is a very expensive function!
 927 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)
 928 {
 929         int i, tnum;
 930         float sdir[3], tdir[3], normal[3], *sv, *tv;
 931         const float *v0, *v1, *v2, *tc0, *tc1, *tc2, *n;
 932         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 933         const int *e;
 934         // clear the vectors
 935         memset(svector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 936         memset(tvector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 937         // process each vertex of each triangle and accumulate the results
 938         for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
 939         {
 940                 v0 = vertex3f + e[0] * 3;
 941                 v1 = vertex3f + e[1] * 3;
 942                 v2 = vertex3f + e[2] * 3;
 943                 tc0 = texcoord2f + e[0] * 2;
 944                 tc1 = texcoord2f + e[1] * 2;
 945                 tc2 = texcoord2f + e[2] * 2;
 946
 947                 // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 948                 // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 949
 950                 // calculate the edge directions and surface normal
 951                 // 6 multiply, 9 subtract
 952                 VectorSubtract(v1, v0, v10);
 953                 VectorSubtract(v2, v0, v20);
 954                 normal[0] = v20[1] * v10[2] - v20[2] * v10[1];
 955                 normal[1] = v20[2] * v10[0] - v20[0] * v10[2];
 956                 normal[2] = v20[0] * v10[1] - v20[1] * v10[0];
 957
 958                 // calculate the tangents
 959                 // 12 multiply, 10 subtract
 960                 tc10[1] = tc1[1] - tc0[1];
 961                 tc20[1] = tc2[1] - tc0[1];
 962                 sdir[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 963                 sdir[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 964                 sdir[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 965                 tc10[0] = tc1[0] - tc0[0];
 966                 tc20[0] = tc2[0] - tc0[0];
 967                 tdir[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 968                 tdir[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 969                 tdir[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 970
 971                 // if texture is mapped the wrong way (counterclockwise), the tangents
 972                 // have to be flipped, this is detected by calculating a normal from the
 973                 // two tangents, and seeing if it is opposite the surface normal
 974                 // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 975                 CrossProduct(tdir, sdir, tangentcross);
 976                 if (DotProduct(tangentcross, normal) < 0)
 977                 {
 978                         VectorNegate(sdir, sdir);
 979                         VectorNegate(tdir, tdir);
 980                 }
 981
 982                 if (!areaweighting)
 983                 {
 984                         VectorNormalize(sdir);
 985                         VectorNormalize(tdir);
 986                 }
 987                 for (i = 0;i < 3;i++)
 988                 {
 989                         VectorAdd(svector3f + e[i]*3, sdir, svector3f + e[i]*3);
 990                         VectorAdd(tvector3f + e[i]*3, tdir, tvector3f + e[i]*3);
 991                 }
 992         }
 993         // make the tangents completely perpendicular to the surface normal, and
 994         // then normalize them
 995         // 16 assignments, 2 divide, 2 sqrt, 2 negates, 14 adds, 24 multiplies
 996         for (i = 0, sv = svector3f + 3 * firstvertex, tv = tvector3f + 3 * firstvertex, n = normal3f + 3 * firstvertex;i < numvertices;i++, sv += 3, tv += 3, n += 3)
 997         {
 998                 f = -DotProduct(sv, n);
 999                 VectorMA(sv, f, n, sv);
1000                 VectorNormalize(sv);
1001                 f = -DotProduct(tv, n);
1002                 VectorMA(tv, f, n, tv);
1003                 VectorNormalize(tv);
1004         }
1005 }
1006
1007 void Mod_AllocSurfMesh(mempool_t *mempool, int numvertices, int numtriangles, qboolean lightmapoffsets, qboolean vertexcolors, qboolean neighbors)
1008 {
1009         unsigned char *data;
1010         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));
1011         loadmodel->surfmesh.num_vertices = numvertices;
1012         loadmodel->surfmesh.num_triangles = numtriangles;
1013         if (loadmodel->surfmesh.num_vertices)
1014         {
1015                 loadmodel->surfmesh.data_vertex3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
1016                 loadmodel->surfmesh.data_svector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
1017                 loadmodel->surfmesh.data_tvector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
1018                 loadmodel->surfmesh.data_normal3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
1019                 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
1020                 loadmodel->surfmesh.data_texcoordlightmap2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
1021                 if (vertexcolors)
1022                         loadmodel->surfmesh.data_lightmapcolor4f = (float *)data, data += sizeof(float[4]) * loadmodel->surfmesh.num_vertices;
1023                 if (lightmapoffsets)
1024                         loadmodel->surfmesh.data_lightmapoffsets = (int *)data, data += sizeof(int) * loadmodel->surfmesh.num_vertices;
1025         }
1026         if (loadmodel->surfmesh.num_triangles)
1027         {
1028                 loadmodel->surfmesh.data_element3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
1029                 if (neighbors)
1030                         loadmodel->surfmesh.data_neighbor3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
1031                 if (loadmodel->surfmesh.num_vertices <= 65536)
1032                         loadmodel->surfmesh.data_element3s = (unsigned short *)data, data += sizeof(unsigned short[3]) * loadmodel->surfmesh.num_triangles;
1033         }
1034 }
1035
1036 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)
1037 {
1038         shadowmesh_t *newmesh;
1039         unsigned char *data;
1040         int size;
1041         size = sizeof(shadowmesh_t);
1042         size += maxverts * sizeof(float[3]);
1043         if (light)
1044                 size += maxverts * sizeof(float[11]);
1045         size += maxtriangles * sizeof(int[3]);
1046         if (maxverts <= 65536)
1047                 size += maxtriangles * sizeof(unsigned short[3]);
1048         if (neighbors)
1049                 size += maxtriangles * sizeof(int[3]);
1050         if (expandable)
1051                 size += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *) + maxverts * sizeof(shadowmeshvertexhash_t);
1052         data = (unsigned char *)Mem_Alloc(mempool, size);
1053         newmesh = (shadowmesh_t *)data;data += sizeof(*newmesh);
1054         newmesh->map_diffuse = map_diffuse;
1055         newmesh->map_specular = map_specular;
1056         newmesh->map_normal = map_normal;
1057         newmesh->maxverts = maxverts;
1058         newmesh->maxtriangles = maxtriangles;
1059         newmesh->numverts = 0;
1060         newmesh->numtriangles = 0;
1061         memset(newmesh->sideoffsets, 0, sizeof(newmesh->sideoffsets));
1062         memset(newmesh->sidetotals, 0, sizeof(newmesh->sidetotals));
1063
1064         newmesh->vertex3f = (float *)data;data += maxverts * sizeof(float[3]);
1065         if (light)
1066         {
1067                 newmesh->svector3f = (float *)data;data += maxverts * sizeof(float[3]);
1068                 newmesh->tvector3f = (float *)data;data += maxverts * sizeof(float[3]);
1069                 newmesh->normal3f = (float *)data;data += maxverts * sizeof(float[3]);
1070                 newmesh->texcoord2f = (float *)data;data += maxverts * sizeof(float[2]);
1071         }
1072         newmesh->element3i = (int *)data;data += maxtriangles * sizeof(int[3]);
1073         if (neighbors)
1074         {
1075                 newmesh->neighbor3i = (int *)data;data += maxtriangles * sizeof(int[3]);
1076         }
1077         if (expandable)
1078         {
1079                 newmesh->vertexhashtable = (shadowmeshvertexhash_t **)data;data += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *);
1080                 newmesh->vertexhashentries = (shadowmeshvertexhash_t *)data;data += maxverts * sizeof(shadowmeshvertexhash_t);
1081         }
1082         if (maxverts <= 65536)
1083                 newmesh->element3s = (unsigned short *)data;data += maxtriangles * sizeof(unsigned short[3]);
1084         return newmesh;
1085 }
1086
1087 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh, int light, int neighbors)
1088 {
1089         shadowmesh_t *newmesh;
1090         newmesh = Mod_ShadowMesh_Alloc(mempool, oldmesh->numverts, oldmesh->numtriangles, oldmesh->map_diffuse, oldmesh->map_specular, oldmesh->map_normal, light, neighbors, false);
1091         newmesh->numverts = oldmesh->numverts;
1092         newmesh->numtriangles = oldmesh->numtriangles;
1093         memcpy(newmesh->sideoffsets, oldmesh->sideoffsets, sizeof(oldmesh->sideoffsets));
1094         memcpy(newmesh->sidetotals, oldmesh->sidetotals, sizeof(oldmesh->sidetotals));
1095
1096         memcpy(newmesh->vertex3f, oldmesh->vertex3f, oldmesh->numverts * sizeof(float[3]));
1097         if (newmesh->svector3f && oldmesh->svector3f)
1098         {
1099                 memcpy(newmesh->svector3f, oldmesh->svector3f, oldmesh->numverts * sizeof(float[3]));
1100                 memcpy(newmesh->tvector3f, oldmesh->tvector3f, oldmesh->numverts * sizeof(float[3]));
1101                 memcpy(newmesh->normal3f, oldmesh->normal3f, oldmesh->numverts * sizeof(float[3]));
1102                 memcpy(newmesh->texcoord2f, oldmesh->texcoord2f, oldmesh->numverts * sizeof(float[2]));
1103         }
1104         memcpy(newmesh->element3i, oldmesh->element3i, oldmesh->numtriangles * sizeof(int[3]));
1105         if (newmesh->neighbor3i && oldmesh->neighbor3i)
1106                 memcpy(newmesh->neighbor3i, oldmesh->neighbor3i, oldmesh->numtriangles * sizeof(int[3]));
1107         return newmesh;
1108 }
1109
1110 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *vertex14f)
1111 {
1112         int hashindex, vnum;
1113         shadowmeshvertexhash_t *hash;
1114         // this uses prime numbers intentionally
1115         hashindex = (unsigned int) (vertex14f[0] * 2003 + vertex14f[1] * 4001 + vertex14f[2] * 7919) % SHADOWMESHVERTEXHASH;
1116         for (hash = mesh->vertexhashtable[hashindex];hash;hash = hash->next)
1117         {
1118                 vnum = (hash - mesh->vertexhashentries);
1119                 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]))
1120                  && (mesh->svector3f == NULL || (mesh->svector3f[vnum * 3 + 0] == vertex14f[3] && mesh->svector3f[vnum * 3 + 1] == vertex14f[4] && mesh->svector3f[vnum * 3 + 2] == vertex14f[5]))
1121                  && (mesh->tvector3f == NULL || (mesh->tvector3f[vnum * 3 + 0] == vertex14f[6] && mesh->tvector3f[vnum * 3 + 1] == vertex14f[7] && mesh->tvector3f[vnum * 3 + 2] == vertex14f[8]))
1122                  && (mesh->normal3f == NULL || (mesh->normal3f[vnum * 3 + 0] == vertex14f[9] && mesh->normal3f[vnum * 3 + 1] == vertex14f[10] && mesh->normal3f[vnum * 3 + 2] == vertex14f[11]))
1123                  && (mesh->texcoord2f == NULL || (mesh->texcoord2f[vnum * 2 + 0] == vertex14f[12] && mesh->texcoord2f[vnum * 2 + 1] == vertex14f[13])))
1124                         return hash - mesh->vertexhashentries;
1125         }
1126         vnum = mesh->numverts++;
1127         hash = mesh->vertexhashentries + vnum;
1128         hash->next = mesh->vertexhashtable[hashindex];
1129         mesh->vertexhashtable[hashindex] = hash;
1130         if (mesh->vertex3f) {mesh->vertex3f[vnum * 3 + 0] = vertex14f[0];mesh->vertex3f[vnum * 3 + 1] = vertex14f[1];mesh->vertex3f[vnum * 3 + 2] = vertex14f[2];}
1131         if (mesh->svector3f) {mesh->svector3f[vnum * 3 + 0] = vertex14f[3];mesh->svector3f[vnum * 3 + 1] = vertex14f[4];mesh->svector3f[vnum * 3 + 2] = vertex14f[5];}
1132         if (mesh->tvector3f) {mesh->tvector3f[vnum * 3 + 0] = vertex14f[6];mesh->tvector3f[vnum * 3 + 1] = vertex14f[7];mesh->tvector3f[vnum * 3 + 2] = vertex14f[8];}
1133         if (mesh->normal3f) {mesh->normal3f[vnum * 3 + 0] = vertex14f[9];mesh->normal3f[vnum * 3 + 1] = vertex14f[10];mesh->normal3f[vnum * 3 + 2] = vertex14f[11];}
1134         if (mesh->texcoord2f) {mesh->texcoord2f[vnum * 2 + 0] = vertex14f[12];mesh->texcoord2f[vnum * 2 + 1] = vertex14f[13];}
1135         return vnum;
1136 }
1137
1138 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex14f)
1139 {
1140         if (mesh->numtriangles == 0)
1141         {
1142                 // set the properties on this empty mesh to be more favorable...
1143                 // (note: this case only occurs for the first triangle added to a new mesh chain)
1144                 mesh->map_diffuse = map_diffuse;
1145                 mesh->map_specular = map_specular;
1146                 mesh->map_normal = map_normal;
1147         }
1148         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)
1149         {
1150                 if (mesh->next == NULL)
1151                         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);
1152                 mesh = mesh->next;
1153         }
1154         mesh->element3i[mesh->numtriangles * 3 + 0] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 0);
1155         mesh->element3i[mesh->numtriangles * 3 + 1] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 1);
1156         mesh->element3i[mesh->numtriangles * 3 + 2] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 2);
1157         mesh->numtriangles++;
1158 }
1159
1160 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)
1161 {
1162         int i, j, e;
1163         float vbuf[3*14], *v;
1164         memset(vbuf, 0, sizeof(vbuf));
1165         for (i = 0;i < numtris;i++)
1166         {
1167                 for (j = 0, v = vbuf;j < 3;j++, v += 14)
1168                 {
1169                         e = *element3i++;
1170                         if (vertex3f)
1171                         {
1172                                 v[0] = vertex3f[e * 3 + 0];
1173                                 v[1] = vertex3f[e * 3 + 1];
1174                                 v[2] = vertex3f[e * 3 + 2];
1175                         }
1176                         if (svector3f)
1177                         {
1178                                 v[3] = svector3f[e * 3 + 0];
1179                                 v[4] = svector3f[e * 3 + 1];
1180                                 v[5] = svector3f[e * 3 + 2];
1181                         }
1182                         if (tvector3f)
1183                         {
1184                                 v[6] = tvector3f[e * 3 + 0];
1185                                 v[7] = tvector3f[e * 3 + 1];
1186                                 v[8] = tvector3f[e * 3 + 2];
1187                         }
1188                         if (normal3f)
1189                         {
1190                                 v[9] = normal3f[e * 3 + 0];
1191                                 v[10] = normal3f[e * 3 + 1];
1192                                 v[11] = normal3f[e * 3 + 2];
1193                         }
1194                         if (texcoord2f)
1195                         {
1196                                 v[12] = texcoord2f[e * 2 + 0];
1197                                 v[13] = texcoord2f[e * 2 + 1];
1198                         }
1199                 }
1200                 Mod_ShadowMesh_AddTriangle(mempool, mesh, map_diffuse, map_specular, map_normal, vbuf);
1201         }
1202
1203         // the triangle calculation can take a while, so let's do a keepalive here
1204         CL_KeepaliveMessage(false);
1205 }
1206
1207 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)
1208 {
1209         // the preparation before shadow mesh initialization can take a while, so let's do a keepalive here
1210         CL_KeepaliveMessage(false);
1211
1212         return Mod_ShadowMesh_Alloc(mempool, maxverts, maxtriangles, map_diffuse, map_specular, map_normal, light, neighbors, expandable);
1213 }
1214
1215 static void Mod_ShadowMesh_CreateVBOs(shadowmesh_t *mesh, mempool_t *mempool)
1216 {
1217         if (!mesh->numverts)
1218                 return;
1219
1220         // build r_vertexmesh_t array
1221         // (compressed interleaved array for D3D)
1222         if (!mesh->vertexmesh && mesh->texcoord2f && vid.useinterleavedarrays)
1223         {
1224                 int vertexindex;
1225                 int numvertices = mesh->numverts;
1226                 r_vertexmesh_t *vertexmesh;
1227                 mesh->vertexmesh = vertexmesh = (r_vertexmesh_t*)Mem_Alloc(mempool, numvertices * sizeof(*mesh->vertexmesh));
1228                 for (vertexindex = 0;vertexindex < numvertices;vertexindex++, vertexmesh++)
1229                 {
1230                         VectorCopy(mesh->vertex3f + 3*vertexindex, vertexmesh->vertex3f);
1231                         VectorScale(mesh->svector3f + 3*vertexindex, 1.0f, vertexmesh->svector3f);
1232                         VectorScale(mesh->tvector3f + 3*vertexindex, 1.0f, vertexmesh->tvector3f);
1233                         VectorScale(mesh->normal3f + 3*vertexindex, 1.0f, vertexmesh->normal3f);
1234                         Vector2Copy(mesh->texcoord2f + 2*vertexindex, vertexmesh->texcoordtexture2f);
1235                 }
1236         }
1237
1238         // upload r_vertexmesh_t array as a buffer
1239         if (mesh->vertexmesh && !mesh->vertexmeshbuffer)
1240                 mesh->vertexmeshbuffer = R_Mesh_CreateMeshBuffer(mesh->vertexmesh, mesh->numverts * sizeof(*mesh->vertexmesh), loadmodel->name, false, false, false);
1241
1242         // upload vertex3f array as a buffer
1243         if (mesh->vertex3f && !mesh->vertex3fbuffer)
1244                 mesh->vertex3fbuffer = R_Mesh_CreateMeshBuffer(mesh->vertex3f, mesh->numverts * sizeof(float[3]), loadmodel->name, false, false, false);
1245
1246         // upload short indices as a buffer
1247         if (mesh->element3s && !mesh->element3s_indexbuffer)
1248                 mesh->element3s_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3s, mesh->numtriangles * sizeof(short[3]), loadmodel->name, true, false, true);
1249
1250         // upload int indices as a buffer
1251         if (mesh->element3i && !mesh->element3i_indexbuffer && !mesh->element3s)
1252                 mesh->element3i_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3i, mesh->numtriangles * sizeof(int[3]), loadmodel->name, true, false, false);
1253
1254         // vertex buffer is several arrays and we put them in the same buffer
1255         //
1256         // is this wise?  the texcoordtexture2f array is used with dynamic
1257         // vertex/svector/tvector/normal when rendering animated models, on the
1258         // other hand animated models don't use a lot of vertices anyway...
1259         if (!mesh->vbo_vertexbuffer && !vid.useinterleavedarrays)
1260         {
1261                 size_t size;
1262                 unsigned char *mem;
1263                 size = 0;
1264                 mesh->vbooffset_vertex3f           = size;if (mesh->vertex3f          ) size += mesh->numverts * sizeof(float[3]);
1265                 mesh->vbooffset_svector3f          = size;if (mesh->svector3f         ) size += mesh->numverts * sizeof(float[3]);
1266                 mesh->vbooffset_tvector3f          = size;if (mesh->tvector3f         ) size += mesh->numverts * sizeof(float[3]);
1267                 mesh->vbooffset_normal3f           = size;if (mesh->normal3f          ) size += mesh->numverts * sizeof(float[3]);
1268                 mesh->vbooffset_texcoord2f         = size;if (mesh->texcoord2f        ) size += mesh->numverts * sizeof(float[2]);
1269                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
1270                 if (mesh->vertex3f          ) memcpy(mem + mesh->vbooffset_vertex3f          , mesh->vertex3f          , mesh->numverts * sizeof(float[3]));
1271                 if (mesh->svector3f         ) memcpy(mem + mesh->vbooffset_svector3f         , mesh->svector3f         , mesh->numverts * sizeof(float[3]));
1272                 if (mesh->tvector3f         ) memcpy(mem + mesh->vbooffset_tvector3f         , mesh->tvector3f         , mesh->numverts * sizeof(float[3]));
1273                 if (mesh->normal3f          ) memcpy(mem + mesh->vbooffset_normal3f          , mesh->normal3f          , mesh->numverts * sizeof(float[3]));
1274                 if (mesh->texcoord2f        ) memcpy(mem + mesh->vbooffset_texcoord2f        , mesh->texcoord2f        , mesh->numverts * sizeof(float[2]));
1275                 mesh->vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, "shadowmesh", false, false, false);
1276                 Mem_Free(mem);
1277         }
1278 }
1279
1280 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh, qboolean light, qboolean neighbors, qboolean createvbo)
1281 {
1282         shadowmesh_t *mesh, *newmesh, *nextmesh;
1283         // reallocate meshs to conserve space
1284         for (mesh = firstmesh, firstmesh = NULL;mesh;mesh = nextmesh)
1285         {
1286                 nextmesh = mesh->next;
1287                 if (mesh->numverts >= 3 && mesh->numtriangles >= 1)
1288                 {
1289                         newmesh = Mod_ShadowMesh_ReAlloc(mempool, mesh, light, neighbors);
1290                         newmesh->next = firstmesh;
1291                         firstmesh = newmesh;
1292                         if (newmesh->element3s)
1293                         {
1294                                 int i;
1295                                 for (i = 0;i < newmesh->numtriangles*3;i++)
1296                                         newmesh->element3s[i] = newmesh->element3i[i];
1297                         }
1298                         if (createvbo)
1299                                 Mod_ShadowMesh_CreateVBOs(newmesh, mempool);
1300                 }
1301                 Mem_Free(mesh);
1302         }
1303
1304         // this can take a while, so let's do a keepalive here
1305         CL_KeepaliveMessage(false);
1306
1307         return firstmesh;
1308 }
1309
1310 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius)
1311 {
1312         int i;
1313         shadowmesh_t *mesh;
1314         vec3_t nmins, nmaxs, ncenter, temp;
1315         float nradius2, dist2, *v;
1316         VectorClear(nmins);
1317         VectorClear(nmaxs);
1318         // calculate bbox
1319         for (mesh = firstmesh;mesh;mesh = mesh->next)
1320         {
1321                 if (mesh == firstmesh)
1322                 {
1323                         VectorCopy(mesh->vertex3f, nmins);
1324                         VectorCopy(mesh->vertex3f, nmaxs);
1325                 }
1326                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1327                 {
1328                         if (nmins[0] > v[0]) nmins[0] = v[0];if (nmaxs[0] < v[0]) nmaxs[0] = v[0];
1329                         if (nmins[1] > v[1]) nmins[1] = v[1];if (nmaxs[1] < v[1]) nmaxs[1] = v[1];
1330                         if (nmins[2] > v[2]) nmins[2] = v[2];if (nmaxs[2] < v[2]) nmaxs[2] = v[2];
1331                 }
1332         }
1333         // calculate center and radius
1334         ncenter[0] = (nmins[0] + nmaxs[0]) * 0.5f;
1335         ncenter[1] = (nmins[1] + nmaxs[1]) * 0.5f;
1336         ncenter[2] = (nmins[2] + nmaxs[2]) * 0.5f;
1337         nradius2 = 0;
1338         for (mesh = firstmesh;mesh;mesh = mesh->next)
1339         {
1340                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1341                 {
1342                         VectorSubtract(v, ncenter, temp);
1343                         dist2 = DotProduct(temp, temp);
1344                         if (nradius2 < dist2)
1345                                 nradius2 = dist2;
1346                 }
1347         }
1348         // return data
1349         if (mins)
1350                 VectorCopy(nmins, mins);
1351         if (maxs)
1352                 VectorCopy(nmaxs, maxs);
1353         if (center)
1354                 VectorCopy(ncenter, center);
1355         if (radius)
1356                 *radius = sqrt(nradius2);
1357 }
1358
1359 void Mod_ShadowMesh_Free(shadowmesh_t *mesh)
1360 {
1361         shadowmesh_t *nextmesh;
1362         for (;mesh;mesh = nextmesh)
1363         {
1364                 if (mesh->vertex3fbuffer)
1365                         R_Mesh_DestroyMeshBuffer(mesh->vertex3fbuffer);
1366                 if (mesh->vertexmeshbuffer)
1367                         R_Mesh_DestroyMeshBuffer(mesh->vertexmeshbuffer);
1368                 if (mesh->element3i_indexbuffer)
1369                         R_Mesh_DestroyMeshBuffer(mesh->element3i_indexbuffer);
1370                 if (mesh->element3s_indexbuffer)
1371                         R_Mesh_DestroyMeshBuffer(mesh->element3s_indexbuffer);
1372                 if (mesh->vbo_vertexbuffer)
1373                         R_Mesh_DestroyMeshBuffer(mesh->vbo_vertexbuffer);
1374                 nextmesh = mesh->next;
1375                 Mem_Free(mesh);
1376         }
1377 }
1378
1379 void Mod_CreateCollisionMesh(dp_model_t *mod)
1380 {
1381         int k, numcollisionmeshtriangles;
1382         qboolean usesinglecollisionmesh = false;
1383         const msurface_t *surface = NULL;
1384
1385         mempool_t *mempool = mod->mempool;
1386         if (!mempool && mod->brush.parentmodel)
1387                 mempool = mod->brush.parentmodel->mempool;
1388         // make a single combined collision mesh for physics engine use
1389         // TODO rewrite this to use the collision brushes as source, to fix issues with e.g. common/caulk which creates no drawsurface
1390         numcollisionmeshtriangles = 0;
1391         for (k = 0;k < mod->nummodelsurfaces;k++)
1392         {
1393                 surface = mod->data_surfaces + mod->firstmodelsurface + k;
1394                 if (!strcmp(surface->texture->name, "collision")) // found collision mesh
1395                 {
1396                         usesinglecollisionmesh = true;
1397                         numcollisionmeshtriangles = surface->num_triangles;
1398                         break;
1399                 }
1400                 if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1401                         continue;
1402                 numcollisionmeshtriangles += surface->num_triangles;
1403         }
1404         mod->brush.collisionmesh = Mod_ShadowMesh_Begin(mempool, numcollisionmeshtriangles * 3, numcollisionmeshtriangles, NULL, NULL, NULL, false, false, true);
1405         if (usesinglecollisionmesh)
1406                 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));
1407         else
1408         {
1409                 for (k = 0;k < mod->nummodelsurfaces;k++)
1410                 {
1411                         surface = mod->data_surfaces + mod->firstmodelsurface + k;
1412                         if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1413                                 continue;
1414                         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));
1415                 }
1416         }
1417         mod->brush.collisionmesh = Mod_ShadowMesh_Finish(mempool, mod->brush.collisionmesh, false, false, false);
1418 }
1419
1420 #if 0
1421 static void Mod_GetTerrainVertex3fTexCoord2fFromBGRA(const unsigned char *imagepixels, int imagewidth, int imageheight, int ix, int iy, float *vertex3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
1422 {
1423         float v[3], tc[3];
1424         v[0] = ix;
1425         v[1] = iy;
1426         if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
1427                 v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
1428         else
1429                 v[2] = 0;
1430         Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
1431         Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
1432         texcoord2f[0] = tc[0];
1433         texcoord2f[1] = tc[1];
1434 }
1435
1436 static void Mod_GetTerrainVertexFromBGRA(const unsigned char *imagepixels, int imagewidth, int imageheight, int ix, int iy, float *vertex3f, float *svector3f, float *tvector3f, float *normal3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
1437 {
1438         float vup[3], vdown[3], vleft[3], vright[3];
1439         float tcup[3], tcdown[3], tcleft[3], tcright[3];
1440         float sv[3], tv[3], nl[3];
1441         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
1442         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
1443         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
1444         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
1445         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
1446         Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
1447         Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
1448         VectorAdd(svector3f, sv, svector3f);
1449         VectorAdd(tvector3f, tv, tvector3f);
1450         VectorAdd(normal3f, nl, normal3f);
1451         Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
1452         VectorAdd(svector3f, sv, svector3f);
1453         VectorAdd(tvector3f, tv, tvector3f);
1454         VectorAdd(normal3f, nl, normal3f);
1455         Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
1456         VectorAdd(svector3f, sv, svector3f);
1457         VectorAdd(tvector3f, tv, tvector3f);
1458         VectorAdd(normal3f, nl, normal3f);
1459 }
1460
1461 static 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)
1462 {
1463         int x, y, ix, iy, *e;
1464         e = element3i;
1465         for (y = 0;y < height;y++)
1466         {
1467                 for (x = 0;x < width;x++)
1468                 {
1469                         e[0] = (y + 1) * (width + 1) + (x + 0);
1470                         e[1] = (y + 0) * (width + 1) + (x + 0);
1471                         e[2] = (y + 1) * (width + 1) + (x + 1);
1472                         e[3] = (y + 0) * (width + 1) + (x + 0);
1473                         e[4] = (y + 0) * (width + 1) + (x + 1);
1474                         e[5] = (y + 1) * (width + 1) + (x + 1);
1475                         e += 6;
1476                 }
1477         }
1478         Mod_BuildTriangleNeighbors(neighbor3i, element3i, width*height*2);
1479         for (y = 0, iy = y1;y < height + 1;y++, iy++)
1480                 for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
1481                         Mod_GetTerrainVertexFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
1482 }
1483 #endif
1484
1485 #if 0
1486 void Mod_Terrain_SurfaceRecurseChunk(dp_model_t *model, int stepsize, int x, int y)
1487 {
1488         float mins[3];
1489         float maxs[3];
1490         float chunkwidth = min(stepsize, model->terrain.width - 1 - x);
1491         float chunkheight = min(stepsize, model->terrain.height - 1 - y);
1492         float viewvector[3];
1493         unsigned int firstvertex;
1494         unsigned int *e;
1495         float *v;
1496         if (chunkwidth < 2 || chunkheight < 2)
1497                 return;
1498         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]);
1499         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]);
1500         viewvector[0] = bound(mins[0], localvieworigin, maxs[0]) - model->terrain.vieworigin[0];
1501         viewvector[1] = bound(mins[1], localvieworigin, maxs[1]) - model->terrain.vieworigin[1];
1502         viewvector[2] = bound(mins[2], localvieworigin, maxs[2]) - model->terrain.vieworigin[2];
1503         if (stepsize > 1 && VectorLength(viewvector) < stepsize*model->terrain.scale[0]*r_terrain_lodscale.value)
1504         {
1505                 // too close for this stepsize, emit as 4 chunks instead
1506                 stepsize /= 2;
1507                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y);
1508                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y);
1509                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y+stepsize);
1510                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y+stepsize);
1511                 return;
1512         }
1513         // emit the geometry at stepsize into our vertex buffer / index buffer
1514         // we add two columns and two rows for skirt
1515         outwidth = chunkwidth+2;
1516         outheight = chunkheight+2;
1517         outwidth2 = outwidth-1;
1518         outheight2 = outheight-1;
1519         outwidth3 = outwidth+1;
1520         outheight3 = outheight+1;
1521         firstvertex = numvertices;
1522         e = model->terrain.element3i + numtriangles;
1523         numtriangles += chunkwidth*chunkheight*2+chunkwidth*2*2+chunkheight*2*2;
1524         v = model->terrain.vertex3f + numvertices;
1525         numvertices += (chunkwidth+1)*(chunkheight+1)+(chunkwidth+1)*2+(chunkheight+1)*2;
1526         // emit the triangles (note: the skirt is treated as two extra rows and two extra columns)
1527         for (ty = 0;ty < outheight;ty++)
1528         {
1529                 for (tx = 0;tx < outwidth;tx++)
1530                 {
1531                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1532                         *e++ = firstvertex + (ty  )*outwidth3+(tx+1);
1533                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1534                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1535                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1536                         *e++ = firstvertex + (ty+1)*outwidth3+(tx  );
1537                 }
1538         }
1539         // TODO: emit surface vertices (x+tx*stepsize, y+ty*stepsize)
1540         for (ty = 0;ty <= outheight;ty++)
1541         {
1542                 skirtrow = ty == 0 || ty == outheight;
1543                 ry = y+bound(1, ty, outheight)*stepsize;
1544                 for (tx = 0;tx <= outwidth;tx++)
1545                 {
1546                         skirt = skirtrow || tx == 0 || tx == outwidth;
1547                         rx = x+bound(1, tx, outwidth)*stepsize;
1548                         v[0] = rx*scale[0];
1549                         v[1] = ry*scale[1];
1550                         v[2] = heightmap[ry*terrainwidth+rx]*scale[2];
1551                         v += 3;
1552                 }
1553         }
1554         // TODO: emit skirt vertices
1555 }
1556
1557 void Mod_Terrain_UpdateSurfacesForViewOrigin(dp_model_t *model)
1558 {
1559         for (y = 0;y < model->terrain.size[1];y += model->terrain.
1560         Mod_Terrain_SurfaceRecurseChunk(model, model->terrain.maxstepsize, x, y);
1561         Mod_Terrain_BuildChunk(model,
1562 }
1563 #endif
1564
1565 static int Mod_LoadQ3Shaders_EnumerateWaveFunc(const char *s)
1566 {
1567         int offset = 0;
1568         if (!strncasecmp(s, "user", 4)) // parse stuff like "user1sin", always user<n>func
1569         {
1570                 offset = bound(0, s[4] - '0', 9);
1571                 offset = (offset + 1) << Q3WAVEFUNC_USER_SHIFT;
1572                 s += 4;
1573                 if(*s)
1574                         ++s;
1575         }
1576         if (!strcasecmp(s, "sin"))             return offset | Q3WAVEFUNC_SIN;
1577         if (!strcasecmp(s, "square"))          return offset | Q3WAVEFUNC_SQUARE;
1578         if (!strcasecmp(s, "triangle"))        return offset | Q3WAVEFUNC_TRIANGLE;
1579         if (!strcasecmp(s, "sawtooth"))        return offset | Q3WAVEFUNC_SAWTOOTH;
1580         if (!strcasecmp(s, "inversesawtooth")) return offset | Q3WAVEFUNC_INVERSESAWTOOTH;
1581         if (!strcasecmp(s, "noise"))           return offset | Q3WAVEFUNC_NOISE;
1582         if (!strcasecmp(s, "none"))            return offset | Q3WAVEFUNC_NONE;
1583         Con_DPrintf("Mod_LoadQ3Shaders: unknown wavefunc %s\n", s);
1584         return offset | Q3WAVEFUNC_NONE;
1585 }
1586
1587 void Mod_FreeQ3Shaders(void)
1588 {
1589         Mem_FreePool(&q3shaders_mem);
1590 }
1591
1592 static void Q3Shader_AddToHash (q3shaderinfo_t* shader)
1593 {
1594         unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)shader->name, strlen (shader->name));
1595         q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1596         q3shader_hash_entry_t* lastEntry = NULL;
1597         while (entry != NULL)
1598         {
1599                 if (strcasecmp (entry->shader.name, shader->name) == 0)
1600                 {
1601                         // redeclaration
1602                         if(shader->dpshaderkill)
1603                         {
1604                                 // killed shader is a redeclarion? we can safely ignore it
1605                                 return;
1606                         }
1607                         else if(entry->shader.dpshaderkill)
1608                         {
1609                                 // replace the old shader!
1610                                 // this will skip the entry allocating part
1611                                 // below and just replace the shader
1612                                 break;
1613                         }
1614                         else
1615                         {
1616                                 unsigned char *start, *end, *start2;
1617                                 start = (unsigned char *) (&shader->Q3SHADERINFO_COMPARE_START);
1618                                 end = ((unsigned char *) (&shader->Q3SHADERINFO_COMPARE_END)) + sizeof(shader->Q3SHADERINFO_COMPARE_END);
1619                                 start2 = (unsigned char *) (&entry->shader.Q3SHADERINFO_COMPARE_START);
1620                                 if(memcmp(start, start2, end - start))
1621                                         Con_DPrintf("Shader '%s' already defined, ignoring mismatching redeclaration\n", shader->name);
1622                                 else
1623                                         Con_DPrintf("Shader '%s' already defined\n", shader->name);
1624                                 return;
1625                         }
1626                 }
1627                 lastEntry = entry;
1628                 entry = entry->chain;
1629         }
1630         if (entry == NULL)
1631         {
1632                 if (lastEntry->shader.name[0] != 0)
1633                 {
1634                         /* Add to chain */
1635                         q3shader_hash_entry_t* newEntry = (q3shader_hash_entry_t*)
1636                           Mem_ExpandableArray_AllocRecord (&q3shader_data->hash_entries);
1637
1638                         while (lastEntry->chain != NULL) lastEntry = lastEntry->chain;
1639                         lastEntry->chain = newEntry;
1640                         newEntry->chain = NULL;
1641                         lastEntry = newEntry;
1642                 }
1643                 /* else: head of chain, in hash entry array */
1644                 entry = lastEntry;
1645         }
1646         memcpy (&entry->shader, shader, sizeof (q3shaderinfo_t));
1647 }
1648
1649 extern cvar_t mod_noshader_default_offsetmapping;
1650 extern cvar_t mod_q3shader_default_offsetmapping;
1651 extern cvar_t mod_q3shader_default_offsetmapping_scale;
1652 extern cvar_t mod_q3shader_default_offsetmapping_bias;
1653 extern cvar_t mod_q3shader_default_polygonoffset;
1654 extern cvar_t mod_q3shader_default_polygonfactor;
1655 extern cvar_t mod_q3shader_force_addalpha;
1656 void Mod_LoadQ3Shaders(void)
1657 {
1658         int j;
1659         int fileindex;
1660         fssearch_t *search;
1661         char *f;
1662         const char *text;
1663         q3shaderinfo_t shader;
1664         q3shaderinfo_layer_t *layer;
1665         int numparameters;
1666         char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
1667         char *custsurfaceparmnames[256]; // VorteX: q3map2 has 64 but well, someone will need more
1668         unsigned long custsurfaceparms[256];
1669         int numcustsurfaceparms;
1670         qboolean dpshaderkill;
1671
1672         Mod_FreeQ3Shaders();
1673
1674         q3shaders_mem = Mem_AllocPool("q3shaders", 0, NULL);
1675         q3shader_data = (q3shader_data_t*)Mem_Alloc (q3shaders_mem,
1676                 sizeof (q3shader_data_t));
1677         Mem_ExpandableArray_NewArray (&q3shader_data->hash_entries,
1678                 q3shaders_mem, sizeof (q3shader_hash_entry_t), 256);
1679         Mem_ExpandableArray_NewArray (&q3shader_data->char_ptrs,
1680                 q3shaders_mem, sizeof (char**), 256);
1681
1682         // parse custinfoparms.txt
1683         numcustsurfaceparms = 0;
1684         if ((text = f = (char *)FS_LoadFile("scripts/custinfoparms.txt", tempmempool, false, NULL)) != NULL)
1685         {
1686                 if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1687                         Con_DPrintf("scripts/custinfoparms.txt: contentflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1688                 else
1689                 {
1690                         while (COM_ParseToken_QuakeC(&text, false))
1691                                 if (!strcasecmp(com_token, "}"))
1692                                         break;
1693                         // custom surfaceflags section
1694                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1695                                 Con_DPrintf("scripts/custinfoparms.txt: surfaceflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1696                         else
1697                         {
1698                                 while(COM_ParseToken_QuakeC(&text, false))
1699                                 {
1700                                         if (!strcasecmp(com_token, "}"))
1701                                                 break;
1702                                         // register surfaceflag
1703                                         if (numcustsurfaceparms >= 256)
1704                                         {
1705                                                 Con_Printf("scripts/custinfoparms.txt: surfaceflags section parsing error - max 256 surfaceflags exceeded\n");
1706                                                 break;
1707                                         }
1708                                         // name
1709                                         j = strlen(com_token)+1;
1710                                         custsurfaceparmnames[numcustsurfaceparms] = (char *)Mem_Alloc(tempmempool, j);
1711                                         strlcpy(custsurfaceparmnames[numcustsurfaceparms], com_token, j+1);
1712                                         // value
1713                                         if (COM_ParseToken_QuakeC(&text, false))
1714                                                 custsurfaceparms[numcustsurfaceparms] = strtol(com_token, NULL, 0);
1715                                         else
1716                                                 custsurfaceparms[numcustsurfaceparms] = 0;
1717                                         numcustsurfaceparms++;
1718                                 }
1719                         }
1720                 }
1721                 Mem_Free(f);
1722         }
1723
1724         // parse shaders
1725         search = FS_Search("scripts/*.shader", true, false);
1726         if (!search)
1727                 return;
1728         for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
1729         {
1730                 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
1731                 if (!f)
1732                         continue;
1733                 while (COM_ParseToken_QuakeC(&text, false))
1734                 {
1735                         memset (&shader, 0, sizeof(shader));
1736                         shader.reflectmin = 0;
1737                         shader.reflectmax = 1;
1738                         shader.refractfactor = 1;
1739                         Vector4Set(shader.refractcolor4f, 1, 1, 1, 1);
1740                         shader.reflectfactor = 1;
1741                         Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
1742                         shader.r_water_wateralpha = 1;
1743                         shader.offsetmapping = (mod_q3shader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
1744                         shader.offsetscale = mod_q3shader_default_offsetmapping_scale.value;
1745                         shader.offsetbias = mod_q3shader_default_offsetmapping_bias.value;
1746                         shader.specularscalemod = 1;
1747                         shader.specularpowermod = 1;
1748                         shader.biaspolygonoffset = mod_q3shader_default_polygonoffset.value;
1749                         shader.biaspolygonfactor = mod_q3shader_default_polygonfactor.value;
1750
1751                         strlcpy(shader.name, com_token, sizeof(shader.name));
1752                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1753                         {
1754                                 Con_DPrintf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
1755                                 break;
1756                         }
1757                         while (COM_ParseToken_QuakeC(&text, false))
1758                         {
1759                                 if (!strcasecmp(com_token, "}"))
1760                                         break;
1761                                 if (!strcasecmp(com_token, "{"))
1762                                 {
1763                                         static q3shaderinfo_layer_t dummy;
1764                                         if (shader.numlayers < Q3SHADER_MAXLAYERS)
1765                                         {
1766                                                 layer = shader.layers + shader.numlayers++;
1767                                         }
1768                                         else
1769                                         {
1770                                                 // parse and process it anyway, just don't store it (so a map $lightmap or such stuff still is found)
1771                                                 memset(&dummy, 0, sizeof(dummy));
1772                                                 layer = &dummy;
1773                                         }
1774                                         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1775                                         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1776                                         layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1777                                         layer->blendfunc[0] = GL_ONE;
1778                                         layer->blendfunc[1] = GL_ZERO;
1779                                         while (COM_ParseToken_QuakeC(&text, false))
1780                                         {
1781                                                 if (!strcasecmp(com_token, "}"))
1782                                                         break;
1783                                                 if (!strcasecmp(com_token, "\n"))
1784                                                         continue;
1785                                                 numparameters = 0;
1786                                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1787                                                 {
1788                                                         if (j < TEXTURE_MAXFRAMES + 4)
1789                                                         {
1790                                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1791                                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1792                                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1793                                                                 else
1794                                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1795                                                                 numparameters = j + 1;
1796                                                         }
1797                                                         if (!COM_ParseToken_QuakeC(&text, true))
1798                                                                 break;
1799                                                 }
1800                                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1801                                                 //      parameter[j][0] = 0;
1802                                                 if (developer_insane.integer)
1803                                                 {
1804                                                         Con_DPrintf("%s %i: ", shader.name, shader.numlayers - 1);
1805                                                         for (j = 0;j < numparameters;j++)
1806                                                                 Con_DPrintf(" %s", parameter[j]);
1807                                                         Con_DPrint("\n");
1808                                                 }
1809                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
1810                                                 {
1811                                                         if (numparameters == 2)
1812                                                         {
1813                                                                 if (!strcasecmp(parameter[1], "add"))
1814                                                                 {
1815                                                                         layer->blendfunc[0] = GL_ONE;
1816                                                                         layer->blendfunc[1] = GL_ONE;
1817                                                                 }
1818                                                                 else if (!strcasecmp(parameter[1], "addalpha"))
1819                                                                 {
1820                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1821                                                                         layer->blendfunc[1] = GL_ONE;
1822                                                                 }
1823                                                                 else if (!strcasecmp(parameter[1], "filter"))
1824                                                                 {
1825                                                                         layer->blendfunc[0] = GL_DST_COLOR;
1826                                                                         layer->blendfunc[1] = GL_ZERO;
1827                                                                 }
1828                                                                 else if (!strcasecmp(parameter[1], "blend"))
1829                                                                 {
1830                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1831                                                                         layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
1832                                                                 }
1833                                                         }
1834                                                         else if (numparameters == 3)
1835                                                         {
1836                                                                 int k;
1837                                                                 for (k = 0;k < 2;k++)
1838                                                                 {
1839                                                                         if (!strcasecmp(parameter[k+1], "GL_ONE"))
1840                                                                                 layer->blendfunc[k] = GL_ONE;
1841                                                                         else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
1842                                                                                 layer->blendfunc[k] = GL_ZERO;
1843                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
1844                                                                                 layer->blendfunc[k] = GL_SRC_COLOR;
1845                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
1846                                                                                 layer->blendfunc[k] = GL_SRC_ALPHA;
1847                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
1848                                                                                 layer->blendfunc[k] = GL_DST_COLOR;
1849                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
1850                                                                                 layer->blendfunc[k] = GL_DST_ALPHA;
1851                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
1852                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
1853                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
1854                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
1855                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
1856                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
1857                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
1858                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1859                                                                         else
1860                                                                                 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
1861                                                                 }
1862                                                         }
1863                                                 }
1864                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
1865                                                         layer->alphatest = true;
1866                                                 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
1867                                                 {
1868                                                         if (!strcasecmp(parameter[0], "clampmap"))
1869                                                                 layer->clampmap = true;
1870                                                         layer->numframes = 1;
1871                                                         layer->framerate = 1;
1872                                                         layer->texturename = (char**)Mem_ExpandableArray_AllocRecord (
1873                                                                 &q3shader_data->char_ptrs);
1874                                                         layer->texturename[0] = Mem_strdup (q3shaders_mem, parameter[1]);
1875                                                         if (!strcasecmp(parameter[1], "$lightmap"))
1876                                                                 shader.lighting = true;
1877                                                 }
1878                                                 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
1879                                                 {
1880                                                         int i;
1881                                                         layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
1882                                                         layer->framerate = atof(parameter[1]);
1883                                                         layer->texturename = (char **) Mem_Alloc (q3shaders_mem, sizeof (char*) * layer->numframes);
1884                                                         for (i = 0;i < layer->numframes;i++)
1885                                                                 layer->texturename[i] = Mem_strdup (q3shaders_mem, parameter[i + 2]);
1886                                                 }
1887                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen"))
1888                                                 {
1889                                                         int i;
1890                                                         for (i = 0;i < numparameters - 2 && i < Q3RGBGEN_MAXPARMS;i++)
1891                                                                 layer->rgbgen.parms[i] = atof(parameter[i+2]);
1892                                                              if (!strcasecmp(parameter[1], "identity"))         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1893                                                         else if (!strcasecmp(parameter[1], "const"))            layer->rgbgen.rgbgen = Q3RGBGEN_CONST;
1894                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->rgbgen.rgbgen = Q3RGBGEN_ENTITY;
1895                                                         else if (!strcasecmp(parameter[1], "exactvertex"))      layer->rgbgen.rgbgen = Q3RGBGEN_EXACTVERTEX;
1896                                                         else if (!strcasecmp(parameter[1], "identitylighting")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITYLIGHTING;
1897                                                         else if (!strcasecmp(parameter[1], "lightingdiffuse"))  layer->rgbgen.rgbgen = Q3RGBGEN_LIGHTINGDIFFUSE;
1898                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSENTITY;
1899                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSVERTEX;
1900                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->rgbgen.rgbgen = Q3RGBGEN_VERTEX;
1901                                                         else if (!strcasecmp(parameter[1], "wave"))
1902                                                         {
1903                                                                 layer->rgbgen.rgbgen = Q3RGBGEN_WAVE;
1904                                                                 layer->rgbgen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1905                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1906                                                                         layer->rgbgen.waveparms[i] = atof(parameter[i+3]);
1907                                                         }
1908                                                         else Con_DPrintf("%s parsing warning: unknown rgbgen %s\n", search->filenames[fileindex], parameter[1]);
1909                                                 }
1910                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen"))
1911                                                 {
1912                                                         int i;
1913                                                         for (i = 0;i < numparameters - 2 && i < Q3ALPHAGEN_MAXPARMS;i++)
1914                                                                 layer->alphagen.parms[i] = atof(parameter[i+2]);
1915                                                              if (!strcasecmp(parameter[1], "identity"))         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1916                                                         else if (!strcasecmp(parameter[1], "const"))            layer->alphagen.alphagen = Q3ALPHAGEN_CONST;
1917                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->alphagen.alphagen = Q3ALPHAGEN_ENTITY;
1918                                                         else if (!strcasecmp(parameter[1], "lightingspecular")) layer->alphagen.alphagen = Q3ALPHAGEN_LIGHTINGSPECULAR;
1919                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSENTITY;
1920                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSVERTEX;
1921                                                         else if (!strcasecmp(parameter[1], "portal"))           layer->alphagen.alphagen = Q3ALPHAGEN_PORTAL;
1922                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->alphagen.alphagen = Q3ALPHAGEN_VERTEX;
1923                                                         else if (!strcasecmp(parameter[1], "wave"))
1924                                                         {
1925                                                                 layer->alphagen.alphagen = Q3ALPHAGEN_WAVE;
1926                                                                 layer->alphagen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1927                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1928                                                                         layer->alphagen.waveparms[i] = atof(parameter[i+3]);
1929                                                         }
1930                                                         else Con_DPrintf("%s parsing warning: unknown alphagen %s\n", search->filenames[fileindex], parameter[1]);
1931                                                 }
1932                                                 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "texgen") || !strcasecmp(parameter[0], "tcgen")))
1933                                                 {
1934                                                         int i;
1935                                                         // observed values: tcgen environment
1936                                                         // no other values have been observed in real shaders
1937                                                         for (i = 0;i < numparameters - 2 && i < Q3TCGEN_MAXPARMS;i++)
1938                                                                 layer->tcgen.parms[i] = atof(parameter[i+2]);
1939                                                              if (!strcasecmp(parameter[1], "base"))        layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1940                                                         else if (!strcasecmp(parameter[1], "texture"))     layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1941                                                         else if (!strcasecmp(parameter[1], "environment")) layer->tcgen.tcgen = Q3TCGEN_ENVIRONMENT;
1942                                                         else if (!strcasecmp(parameter[1], "lightmap"))    layer->tcgen.tcgen = Q3TCGEN_LIGHTMAP;
1943                                                         else if (!strcasecmp(parameter[1], "vector"))      layer->tcgen.tcgen = Q3TCGEN_VECTOR;
1944                                                         else Con_DPrintf("%s parsing warning: unknown tcgen mode %s\n", search->filenames[fileindex], parameter[1]);
1945                                                 }
1946                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "tcmod"))
1947                                                 {
1948                                                         int i, tcmodindex;
1949                                                         // observed values:
1950                                                         // tcmod rotate #
1951                                                         // tcmod scale # #
1952                                                         // tcmod scroll # #
1953                                                         // tcmod stretch sin # # # #
1954                                                         // tcmod stretch triangle # # # #
1955                                                         // tcmod transform # # # # # #
1956                                                         // tcmod turb # # # #
1957                                                         // tcmod turb sin # # # #  (this is bogus)
1958                                                         // no other values have been observed in real shaders
1959                                                         for (tcmodindex = 0;tcmodindex < Q3MAXTCMODS;tcmodindex++)
1960                                                                 if (!layer->tcmods[tcmodindex].tcmod)
1961                                                                         break;
1962                                                         if (tcmodindex < Q3MAXTCMODS)
1963                                                         {
1964                                                                 for (i = 0;i < numparameters - 2 && i < Q3TCMOD_MAXPARMS;i++)
1965                                                                         layer->tcmods[tcmodindex].parms[i] = atof(parameter[i+2]);
1966                                                                          if (!strcasecmp(parameter[1], "entitytranslate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ENTITYTRANSLATE;
1967                                                                 else if (!strcasecmp(parameter[1], "rotate"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ROTATE;
1968                                                                 else if (!strcasecmp(parameter[1], "scale"))           layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCALE;
1969                                                                 else if (!strcasecmp(parameter[1], "scroll"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCROLL;
1970                                                                 else if (!strcasecmp(parameter[1], "page"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_PAGE;
1971                                                                 else if (!strcasecmp(parameter[1], "stretch"))
1972                                                                 {
1973                                                                         layer->tcmods[tcmodindex].tcmod = Q3TCMOD_STRETCH;
1974                                                                         layer->tcmods[tcmodindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1975                                                                         for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1976                                                                                 layer->tcmods[tcmodindex].waveparms[i] = atof(parameter[i+3]);
1977                                                                 }
1978                                                                 else if (!strcasecmp(parameter[1], "transform"))       layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TRANSFORM;
1979                                                                 else if (!strcasecmp(parameter[1], "turb"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TURBULENT;
1980                                                                 else Con_DPrintf("%s parsing warning: unknown tcmod mode %s\n", search->filenames[fileindex], parameter[1]);
1981                                                         }
1982                                                         else
1983                                                                 Con_DPrintf("%s parsing warning: too many tcmods on one layer\n", search->filenames[fileindex]);
1984                                                 }
1985                                                 // break out a level if it was a closing brace (not using the character here to not confuse vim)
1986                                                 if (!strcasecmp(com_token, "}"))
1987                                                         break;
1988                                         }
1989                                         if (layer->rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE || layer->rgbgen.rgbgen == Q3RGBGEN_VERTEX)
1990                                                 shader.lighting = true;
1991                                         if (layer->alphagen.alphagen == Q3ALPHAGEN_VERTEX)
1992                                         {
1993                                                 if (layer == shader.layers + 0)
1994                                                 {
1995                                                         // vertex controlled transparency
1996                                                         shader.vertexalpha = true;
1997                                                 }
1998                                                 else
1999                                                 {
2000                                                         // multilayer terrain shader or similar
2001                                                         shader.textureblendalpha = true;
2002                                                 }
2003                                         }
2004
2005                                         if(mod_q3shader_force_addalpha.integer)
2006                                         {
2007                                                 // for a long while, DP treated GL_ONE GL_ONE as GL_SRC_ALPHA GL_ONE
2008                                                 // this cvar brings back this behaviour
2009                                                 if(layer->blendfunc[0] == GL_ONE && layer->blendfunc[1] == GL_ONE)
2010                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
2011                                         }
2012
2013                                         layer->texflags = 0;
2014                                         if (layer->alphatest)
2015                                                 layer->texflags |= TEXF_ALPHA;
2016                                         switch(layer->blendfunc[0])
2017                                         {
2018                                                 case GL_SRC_ALPHA:
2019                                                 case GL_ONE_MINUS_SRC_ALPHA:
2020                                                         layer->texflags |= TEXF_ALPHA;
2021                                                         break;
2022                                         }
2023                                         switch(layer->blendfunc[1])
2024                                         {
2025                                                 case GL_SRC_ALPHA:
2026                                                 case GL_ONE_MINUS_SRC_ALPHA:
2027                                                         layer->texflags |= TEXF_ALPHA;
2028                                                         break;
2029                                         }
2030                                         if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
2031                                                 layer->texflags |= TEXF_MIPMAP;
2032                                         if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
2033                                                 layer->texflags |= TEXF_PICMIP | TEXF_COMPRESS;
2034                                         if (layer->clampmap)
2035                                                 layer->texflags |= TEXF_CLAMP;
2036                                         continue;
2037                                 }
2038                                 numparameters = 0;
2039                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
2040                                 {
2041                                         if (j < TEXTURE_MAXFRAMES + 4)
2042                                         {
2043                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
2044                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
2045                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
2046                                                 else
2047                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
2048                                                 numparameters = j + 1;
2049                                         }
2050                                         if (!COM_ParseToken_QuakeC(&text, true))
2051                                                 break;
2052                                 }
2053                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
2054                                 //      parameter[j][0] = 0;
2055                                 if (fileindex == 0 && !strcasecmp(com_token, "}"))
2056                                         break;
2057                                 if (developer_insane.integer)
2058                                 {
2059                                         Con_DPrintf("%s: ", shader.name);
2060                                         for (j = 0;j < numparameters;j++)
2061                                                 Con_DPrintf(" %s", parameter[j]);
2062                                         Con_DPrint("\n");
2063                                 }
2064                                 if (numparameters < 1)
2065                                         continue;
2066                                 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
2067                                 {
2068                                         if (!strcasecmp(parameter[1], "alphashadow"))
2069                                                 shader.surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
2070                                         else if (!strcasecmp(parameter[1], "areaportal"))
2071                                                 shader.surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
2072                                         else if (!strcasecmp(parameter[1], "botclip"))
2073                                                 shader.surfaceparms |= Q3SURFACEPARM_BOTCLIP;
2074                                         else if (!strcasecmp(parameter[1], "clusterportal"))
2075                                                 shader.surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
2076                                         else if (!strcasecmp(parameter[1], "detail"))
2077                                                 shader.surfaceparms |= Q3SURFACEPARM_DETAIL;
2078                                         else if (!strcasecmp(parameter[1], "donotenter"))
2079                                                 shader.surfaceparms |= Q3SURFACEPARM_DONOTENTER;
2080                                         else if (!strcasecmp(parameter[1], "dust"))
2081                                                 shader.surfaceparms |= Q3SURFACEPARM_DUST;
2082                                         else if (!strcasecmp(parameter[1], "hint"))
2083                                                 shader.surfaceparms |= Q3SURFACEPARM_HINT;
2084                                         else if (!strcasecmp(parameter[1], "fog"))
2085                                                 shader.surfaceparms |= Q3SURFACEPARM_FOG;
2086                                         else if (!strcasecmp(parameter[1], "lava"))
2087                                                 shader.surfaceparms |= Q3SURFACEPARM_LAVA;
2088                                         else if (!strcasecmp(parameter[1], "lightfilter"))
2089                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
2090                                         else if (!strcasecmp(parameter[1], "lightgrid"))
2091                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
2092                                         else if (!strcasecmp(parameter[1], "metalsteps"))
2093                                                 shader.surfaceparms |= Q3SURFACEPARM_METALSTEPS;
2094                                         else if (!strcasecmp(parameter[1], "nodamage"))
2095                                                 shader.surfaceparms |= Q3SURFACEPARM_NODAMAGE;
2096                                         else if (!strcasecmp(parameter[1], "nodlight"))
2097                                                 shader.surfaceparms |= Q3SURFACEPARM_NODLIGHT;
2098                                         else if (!strcasecmp(parameter[1], "nodraw"))
2099                                                 shader.surfaceparms |= Q3SURFACEPARM_NODRAW;
2100                                         else if (!strcasecmp(parameter[1], "nodrop"))
2101                                                 shader.surfaceparms |= Q3SURFACEPARM_NODROP;
2102                                         else if (!strcasecmp(parameter[1], "noimpact"))
2103                                                 shader.surfaceparms |= Q3SURFACEPARM_NOIMPACT;
2104                                         else if (!strcasecmp(parameter[1], "nolightmap"))
2105                                                 shader.surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
2106                                         else if (!strcasecmp(parameter[1], "nomarks"))
2107                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMARKS;
2108                                         else if (!strcasecmp(parameter[1], "nomipmaps"))
2109                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2110                                         else if (!strcasecmp(parameter[1], "nonsolid"))
2111                                                 shader.surfaceparms |= Q3SURFACEPARM_NONSOLID;
2112                                         else if (!strcasecmp(parameter[1], "origin"))
2113                                                 shader.surfaceparms |= Q3SURFACEPARM_ORIGIN;
2114                                         else if (!strcasecmp(parameter[1], "playerclip"))
2115                                                 shader.surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
2116                                         else if (!strcasecmp(parameter[1], "sky"))
2117                                                 shader.surfaceparms |= Q3SURFACEPARM_SKY;
2118                                         else if (!strcasecmp(parameter[1], "slick"))
2119                                                 shader.surfaceparms |= Q3SURFACEPARM_SLICK;
2120                                         else if (!strcasecmp(parameter[1], "slime"))
2121                                                 shader.surfaceparms |= Q3SURFACEPARM_SLIME;
2122                                         else if (!strcasecmp(parameter[1], "structural"))
2123                                                 shader.surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
2124                                         else if (!strcasecmp(parameter[1], "trans"))
2125                                                 shader.surfaceparms |= Q3SURFACEPARM_TRANS;
2126                                         else if (!strcasecmp(parameter[1], "water"))
2127                                                 shader.surfaceparms |= Q3SURFACEPARM_WATER;
2128                                         else if (!strcasecmp(parameter[1], "pointlight"))
2129                                                 shader.surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
2130                                         else if (!strcasecmp(parameter[1], "antiportal"))
2131                                                 shader.surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
2132                                         else
2133                                         {
2134                                                 // try custom surfaceparms
2135                                                 for (j = 0; j < numcustsurfaceparms; j++)
2136                                                 {
2137                                                         if (!strcasecmp(custsurfaceparmnames[j], parameter[1]))
2138                                                         {
2139                                                                 shader.surfaceparms |= custsurfaceparms[j];
2140                                                                 break;
2141                                                         }
2142                                                 }
2143                                                 // failed all
2144                                                 if (j == numcustsurfaceparms)
2145                                                         Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
2146                                         }
2147                                 }
2148                                 else if (!strcasecmp(parameter[0], "dpshadow"))
2149                                         shader.dpshadow = true;
2150                                 else if (!strcasecmp(parameter[0], "dpnoshadow"))
2151                                         shader.dpnoshadow = true;
2152                                 else if (!strcasecmp(parameter[0], "dpnortlight"))
2153                                         shader.dpnortlight = true;
2154                                 else if (!strcasecmp(parameter[0], "dpreflectcube"))
2155                                         strlcpy(shader.dpreflectcube, parameter[1], sizeof(shader.dpreflectcube));
2156                                 else if (!strcasecmp(parameter[0], "dpmeshcollisions"))
2157                                         shader.dpmeshcollisions = true;
2158                                 // this sets dpshaderkill to true if dpshaderkillifcvarzero was used, and to false if dpnoshaderkillifcvarzero was used
2159                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvarzero")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvarzero")) && numparameters >= 2)
2160                                 {
2161                                         if (Cvar_VariableValue(parameter[1]) == 0.0f)
2162                                                 shader.dpshaderkill = dpshaderkill;
2163                                 }
2164                                 // this sets dpshaderkill to true if dpshaderkillifcvar was used, and to false if dpnoshaderkillifcvar was used
2165                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvar")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvar")) && numparameters >= 2)
2166                                 {
2167                                         const char *op = NULL;
2168                                         if (numparameters >= 3)
2169                                                 op = parameter[2];
2170                                         if(!op)
2171                                         {
2172                                                 if (Cvar_VariableValue(parameter[1]) != 0.0f)
2173                                                         shader.dpshaderkill = dpshaderkill;
2174                                         }
2175                                         else if (numparameters >= 4 && !strcmp(op, "=="))
2176                                         {
2177                                                 if (Cvar_VariableValue(parameter[1]) == atof(parameter[3]))
2178                                                         shader.dpshaderkill = dpshaderkill;
2179                                         }
2180                                         else if (numparameters >= 4 && !strcmp(op, "!="))
2181                                         {
2182                                                 if (Cvar_VariableValue(parameter[1]) != atof(parameter[3]))
2183                                                         shader.dpshaderkill = dpshaderkill;
2184                                         }
2185                                         else if (numparameters >= 4 && !strcmp(op, ">"))
2186                                         {
2187                                                 if (Cvar_VariableValue(parameter[1]) > atof(parameter[3]))
2188                                                         shader.dpshaderkill = dpshaderkill;
2189                                         }
2190                                         else if (numparameters >= 4 && !strcmp(op, "<"))
2191                                         {
2192                                                 if (Cvar_VariableValue(parameter[1]) < atof(parameter[3]))
2193                                                         shader.dpshaderkill = dpshaderkill;
2194                                         }
2195                                         else if (numparameters >= 4 && !strcmp(op, ">="))
2196                                         {
2197                                                 if (Cvar_VariableValue(parameter[1]) >= atof(parameter[3]))
2198                                                         shader.dpshaderkill = dpshaderkill;
2199                                         }
2200                                         else if (numparameters >= 4 && !strcmp(op, "<="))
2201                                         {
2202                                                 if (Cvar_VariableValue(parameter[1]) <= atof(parameter[3]))
2203                                                         shader.dpshaderkill = dpshaderkill;
2204                                         }
2205                                         else
2206                                         {
2207                                                 Con_DPrintf("%s parsing warning: unknown dpshaderkillifcvar op \"%s\", or not enough arguments\n", search->filenames[fileindex], op);
2208                                         }
2209                                 }
2210                                 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
2211                                 {
2212                                         // some q3 skies don't have the sky parm set
2213                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2214                                         strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2215                                 }
2216                                 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
2217                                 {
2218                                         // some q3 skies don't have the sky parm set
2219                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2220                                         if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
2221                                                 strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2222                                 }
2223                                 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
2224                                 {
2225                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
2226                                                 shader.textureflags |= Q3TEXTUREFLAG_TWOSIDED;
2227                                 }
2228                                 else if (!strcasecmp(parameter[0], "nomipmaps"))
2229                                         shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2230                                 else if (!strcasecmp(parameter[0], "nopicmip"))
2231                                         shader.textureflags |= Q3TEXTUREFLAG_NOPICMIP;
2232                                 else if (!strcasecmp(parameter[0], "polygonoffset"))
2233                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2234                                 else if (!strcasecmp(parameter[0], "dppolygonoffset"))
2235                                 {
2236                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2237                                         if(numparameters >= 2)
2238                                         {
2239                                                 shader.biaspolygonfactor = atof(parameter[1]);
2240                                                 if(numparameters >= 3)
2241                                                         shader.biaspolygonoffset = atof(parameter[2]);
2242                                                 else
2243                                                         shader.biaspolygonoffset = 0;
2244                                         }
2245                                 }
2246                                 else if (!strcasecmp(parameter[0], "dprefract") && numparameters >= 5)
2247                                 {
2248                                         shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
2249                                         shader.refractfactor = atof(parameter[1]);
2250                                         Vector4Set(shader.refractcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), 1);
2251                                 }
2252                                 else if (!strcasecmp(parameter[0], "dpreflect") && numparameters >= 6)
2253                                 {
2254                                         shader.textureflags |= Q3TEXTUREFLAG_REFLECTION;
2255                                         shader.reflectfactor = atof(parameter[1]);
2256                                         Vector4Set(shader.reflectcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), atof(parameter[5]));
2257                                 }
2258                                 else if (!strcasecmp(parameter[0], "dpcamera"))
2259                                 {
2260                                         shader.textureflags |= Q3TEXTUREFLAG_CAMERA;
2261                                 }
2262                                 else if (!strcasecmp(parameter[0], "dpwater") && numparameters >= 12)
2263                                 {
2264                                         shader.textureflags |= Q3TEXTUREFLAG_WATERSHADER;
2265                                         shader.reflectmin = atof(parameter[1]);
2266                                         shader.reflectmax = atof(parameter[2]);
2267                                         shader.refractfactor = atof(parameter[3]);
2268                                         shader.reflectfactor = atof(parameter[4]);
2269                                         Vector4Set(shader.refractcolor4f, atof(parameter[5]), atof(parameter[6]), atof(parameter[7]), 1);
2270                                         Vector4Set(shader.reflectcolor4f, atof(parameter[8]), atof(parameter[9]), atof(parameter[10]), 1);
2271                                         shader.r_water_wateralpha = atof(parameter[11]);
2272                                 }
2273                                 else if (!strcasecmp(parameter[0], "dpwaterscroll") && numparameters >= 3)
2274                                 {
2275                                         shader.r_water_waterscroll[0] = 1/atof(parameter[1]);
2276                                         shader.r_water_waterscroll[1] = 1/atof(parameter[2]);
2277                                 }
2278                                 else if (!strcasecmp(parameter[0], "dpglossintensitymod") && numparameters >= 2)
2279                                 {
2280                                         shader.specularscalemod = atof(parameter[1]);
2281                                 }
2282                                 else if (!strcasecmp(parameter[0], "dpglossexponentmod") && numparameters >= 2)
2283                                 {
2284                                         shader.specularpowermod = atof(parameter[1]);
2285                                 }
2286                                 else if (!strcasecmp(parameter[0], "dprtlightambient") && numparameters >= 2)
2287                                 {
2288                                         shader.rtlightambient = atof(parameter[1]);
2289                                 }
2290                                 else if (!strcasecmp(parameter[0], "dpoffsetmapping") && numparameters >= 2)
2291                                 {
2292                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "off"))
2293                                                 shader.offsetmapping = OFFSETMAPPING_OFF;
2294                                         else if (!strcasecmp(parameter[1], "default") || !strcasecmp(parameter[1], "normal"))
2295                                                 shader.offsetmapping = OFFSETMAPPING_DEFAULT;
2296                                         else if (!strcasecmp(parameter[1], "linear"))
2297                                                 shader.offsetmapping = OFFSETMAPPING_LINEAR;
2298                                         else if (!strcasecmp(parameter[1], "relief"))
2299                                                 shader.offsetmapping = OFFSETMAPPING_RELIEF;
2300                                         if (numparameters >= 3)
2301                                                 shader.offsetscale = atof(parameter[2]);
2302                                         if (numparameters >= 5)
2303                                         {
2304                                                 if(!strcasecmp(parameter[3], "bias"))
2305                                                         shader.offsetbias = atof(parameter[4]);
2306                                                 else if(!strcasecmp(parameter[3], "match"))
2307                                                         shader.offsetbias = 1.0f - atof(parameter[4]);
2308                                                 else if(!strcasecmp(parameter[3], "match8"))
2309                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 255.0f;
2310                                                 else if(!strcasecmp(parameter[3], "match16"))
2311                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 65535.0f;
2312                                         }
2313                                 }
2314                                 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
2315                                 {
2316                                         int i, deformindex;
2317                                         for (deformindex = 0;deformindex < Q3MAXDEFORMS;deformindex++)
2318                                                 if (!shader.deforms[deformindex].deform)
2319                                                         break;
2320                                         if (deformindex < Q3MAXDEFORMS)
2321                                         {
2322                                                 for (i = 0;i < numparameters - 2 && i < Q3DEFORM_MAXPARMS;i++)
2323                                                         shader.deforms[deformindex].parms[i] = atof(parameter[i+2]);
2324                                                      if (!strcasecmp(parameter[1], "projectionshadow")) shader.deforms[deformindex].deform = Q3DEFORM_PROJECTIONSHADOW;
2325                                                 else if (!strcasecmp(parameter[1], "autosprite"      )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE;
2326                                                 else if (!strcasecmp(parameter[1], "autosprite2"     )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE2;
2327                                                 else if (!strcasecmp(parameter[1], "text0"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT0;
2328                                                 else if (!strcasecmp(parameter[1], "text1"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT1;
2329                                                 else if (!strcasecmp(parameter[1], "text2"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT2;
2330                                                 else if (!strcasecmp(parameter[1], "text3"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT3;
2331                                                 else if (!strcasecmp(parameter[1], "text4"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT4;
2332                                                 else if (!strcasecmp(parameter[1], "text5"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT5;
2333                                                 else if (!strcasecmp(parameter[1], "text6"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT6;
2334                                                 else if (!strcasecmp(parameter[1], "text7"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT7;
2335                                                 else if (!strcasecmp(parameter[1], "bulge"           )) shader.deforms[deformindex].deform = Q3DEFORM_BULGE;
2336                                                 else if (!strcasecmp(parameter[1], "normal"          )) shader.deforms[deformindex].deform = Q3DEFORM_NORMAL;
2337                                                 else if (!strcasecmp(parameter[1], "wave"            ))
2338                                                 {
2339                                                         shader.deforms[deformindex].deform = Q3DEFORM_WAVE;
2340                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[3]);
2341                                                         for (i = 0;i < numparameters - 4 && i < Q3WAVEPARMS;i++)
2342                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+4]);
2343                                                 }
2344                                                 else if (!strcasecmp(parameter[1], "move"            ))
2345                                                 {
2346                                                         shader.deforms[deformindex].deform = Q3DEFORM_MOVE;
2347                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[5]);
2348                                                         for (i = 0;i < numparameters - 6 && i < Q3WAVEPARMS;i++)
2349                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+6]);
2350                                                 }
2351                                         }
2352                                 }
2353                         }
2354                         // hide this shader if a cvar said it should be killed
2355                         if (shader.dpshaderkill)
2356                                 shader.numlayers = 0;
2357                         // pick the primary layer to render with
2358                         if (shader.numlayers)
2359                         {
2360                                 shader.backgroundlayer = -1;
2361                                 shader.primarylayer = 0;
2362                                 // if lightmap comes first this is definitely an ordinary texture
2363                                 // if the first two layers have the correct blendfuncs and use vertex alpha, it is a blended terrain shader
2364                                 if ((shader.layers[shader.primarylayer].texturename != NULL)
2365                                   && !strcasecmp(shader.layers[shader.primarylayer].texturename[0], "$lightmap"))
2366                                 {
2367                                         shader.backgroundlayer = -1;
2368                                         shader.primarylayer = 1;
2369                                 }
2370                                 else if (shader.numlayers >= 2
2371                                 &&   shader.layers[1].alphagen.alphagen == Q3ALPHAGEN_VERTEX
2372                                 &&  (shader.layers[0].blendfunc[0] == GL_ONE       && shader.layers[0].blendfunc[1] == GL_ZERO                && !shader.layers[0].alphatest)
2373                                 && ((shader.layers[1].blendfunc[0] == GL_SRC_ALPHA && shader.layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2374                                 ||  (shader.layers[1].blendfunc[0] == GL_ONE       && shader.layers[1].blendfunc[1] == GL_ZERO                &&  shader.layers[1].alphatest)))
2375                                 {
2376                                         // terrain blending or other effects
2377                                         shader.backgroundlayer = 0;
2378                                         shader.primarylayer = 1;
2379                                 }
2380                         }
2381                         // fix up multiple reflection types
2382                         if(shader.textureflags & Q3TEXTUREFLAG_WATERSHADER)
2383                                 shader.textureflags &= ~(Q3TEXTUREFLAG_REFRACTION | Q3TEXTUREFLAG_REFLECTION | Q3TEXTUREFLAG_CAMERA);
2384
2385                         Q3Shader_AddToHash (&shader);
2386                 }
2387                 Mem_Free(f);
2388         }
2389         FS_FreeSearch(search);
2390         // free custinfoparm values
2391         for (j = 0; j < numcustsurfaceparms; j++)
2392                 Mem_Free(custsurfaceparmnames[j]);
2393 }
2394
2395 q3shaderinfo_t *Mod_LookupQ3Shader(const char *name)
2396 {
2397         unsigned short hash;
2398         q3shader_hash_entry_t* entry;
2399         if (!q3shaders_mem)
2400                 Mod_LoadQ3Shaders();
2401         hash = CRC_Block_CaseInsensitive ((const unsigned char *)name, strlen (name));
2402         entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
2403         while (entry != NULL)
2404         {
2405                 if (strcasecmp (entry->shader.name, name) == 0)
2406                         return &entry->shader;
2407                 entry = entry->chain;
2408         }
2409         return NULL;
2410 }
2411
2412 qboolean Mod_LoadTextureFromQ3Shader(texture_t *texture, const char *name, qboolean warnmissing, qboolean fallback, int defaulttexflags)
2413 {
2414         int j;
2415         int texflagsmask, texflagsor;
2416         qboolean success = true;
2417         q3shaderinfo_t *shader;
2418         if (!name)
2419                 name = "";
2420         strlcpy(texture->name, name, sizeof(texture->name));
2421         shader = name[0] ? Mod_LookupQ3Shader(name) : NULL;
2422
2423         texflagsmask = ~0;
2424         if(!(defaulttexflags & TEXF_PICMIP))
2425                 texflagsmask &= ~TEXF_PICMIP;
2426         if(!(defaulttexflags & TEXF_COMPRESS))
2427                 texflagsmask &= ~TEXF_COMPRESS;
2428         texflagsor = 0;
2429         if(defaulttexflags & TEXF_ISWORLD)
2430                 texflagsor |= TEXF_ISWORLD;
2431         if(defaulttexflags & TEXF_ISSPRITE)
2432                 texflagsor |= TEXF_ISSPRITE;
2433         // unless later loaded from the shader
2434         texture->offsetmapping = (mod_noshader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
2435         texture->offsetscale = 1;
2436         texture->offsetbias = 0;
2437         texture->specularscalemod = 1;
2438         texture->specularpowermod = 1;
2439         texture->rtlightambient = 0;
2440         // WHEN ADDING DEFAULTS HERE, REMEMBER TO SYNC TO SHADER LOADING ABOVE
2441         // HERE, AND Q1BSP LOADING
2442         // JUST GREP FOR "specularscalemod = 1".
2443
2444         if (shader)
2445         {
2446                 if (developer_loading.integer)
2447                         Con_Printf("%s: loaded shader for %s\n", loadmodel->name, name);
2448
2449                 // allow disabling of picmip or compression by defaulttexflags
2450                 texture->textureflags = (shader->textureflags & texflagsmask) | texflagsor;
2451
2452                 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
2453                 {
2454                         texture->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2455                         if (shader->skyboxname[0])
2456                         {
2457                                 // quake3 seems to append a _ to the skybox name, so this must do so as well
2458                                 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
2459                         }
2460                 }
2461                 else if ((texture->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
2462                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2463                 else
2464                         texture->basematerialflags = MATERIALFLAG_WALL;
2465
2466                 if (shader->layers[0].alphatest)
2467                         texture->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
2468                 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
2469                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
2470                 if (shader->textureflags & Q3TEXTUREFLAG_POLYGONOFFSET)
2471                 {
2472                         texture->biaspolygonoffset += shader->biaspolygonoffset;
2473                         texture->biaspolygonfactor += shader->biaspolygonfactor;
2474                 }
2475                 if (shader->textureflags & Q3TEXTUREFLAG_REFRACTION)
2476                         texture->basematerialflags |= MATERIALFLAG_REFRACTION;
2477                 if (shader->textureflags & Q3TEXTUREFLAG_REFLECTION)
2478                         texture->basematerialflags |= MATERIALFLAG_REFLECTION;
2479                 if (shader->textureflags & Q3TEXTUREFLAG_WATERSHADER)
2480                         texture->basematerialflags |= MATERIALFLAG_WATERSHADER;
2481                 if (shader->textureflags & Q3TEXTUREFLAG_CAMERA)
2482                         texture->basematerialflags |= MATERIALFLAG_CAMERA;
2483                 texture->customblendfunc[0] = GL_ONE;
2484                 texture->customblendfunc[1] = GL_ZERO;
2485                 if (shader->numlayers > 0)
2486                 {
2487                         texture->customblendfunc[0] = shader->layers[0].blendfunc[0];
2488                         texture->customblendfunc[1] = shader->layers[0].blendfunc[1];
2489 /*
2490 Q3 shader blendfuncs actually used in the game (* = supported by DP)
2491 * additive               GL_ONE GL_ONE
2492 additive weird         GL_ONE GL_SRC_ALPHA
2493 additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
2494 * alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
2495 alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
2496 brighten               GL_DST_COLOR GL_ONE
2497 brighten               GL_ONE GL_SRC_COLOR
2498 brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
2499 brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
2500 * modulate               GL_DST_COLOR GL_ZERO
2501 * modulate               GL_ZERO GL_SRC_COLOR
2502 modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
2503 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
2504 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
2505 * modulate x2            GL_DST_COLOR GL_SRC_COLOR
2506 * no blend               GL_ONE GL_ZERO
2507 nothing                GL_ZERO GL_ONE
2508 */
2509                         // if not opaque, figure out what blendfunc to use
2510                         if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
2511                         {
2512                                 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
2513                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2514                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
2515                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2516                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2517                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2518                                 else
2519                                         texture->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2520                         }
2521                 }
2522                 if (!shader->lighting)
2523                         texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
2524                 if (shader->primarylayer >= 0)
2525                 {
2526                         q3shaderinfo_layer_t* primarylayer = shader->layers + shader->primarylayer;
2527                         // copy over many primarylayer parameters
2528                         texture->rgbgen = primarylayer->rgbgen;
2529                         texture->alphagen = primarylayer->alphagen;
2530                         texture->tcgen = primarylayer->tcgen;
2531                         memcpy(texture->tcmods, primarylayer->tcmods, sizeof(texture->tcmods));
2532                         // load the textures
2533                         texture->numskinframes = primarylayer->numframes;
2534                         texture->skinframerate = primarylayer->framerate;
2535                         for (j = 0;j < primarylayer->numframes;j++)
2536                         {
2537                                 if(cls.state == ca_dedicated)
2538                                 {
2539                                         texture->skinframes[j] = NULL;
2540                                 }
2541                                 else if (!(texture->skinframes[j] = R_SkinFrame_LoadExternal(primarylayer->texturename[j], (primarylayer->texflags & texflagsmask) | texflagsor, false)))
2542                                 {
2543                                         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);
2544                                         texture->skinframes[j] = R_SkinFrame_LoadMissing();
2545                                 }
2546                         }
2547                 }
2548                 if (shader->backgroundlayer >= 0)
2549                 {
2550                         q3shaderinfo_layer_t* backgroundlayer = shader->layers + shader->backgroundlayer;
2551                         // copy over one secondarylayer parameter
2552                         memcpy(texture->backgroundtcmods, backgroundlayer->tcmods, sizeof(texture->backgroundtcmods));
2553                         // load the textures
2554                         texture->backgroundnumskinframes = backgroundlayer->numframes;
2555                         texture->backgroundskinframerate = backgroundlayer->framerate;
2556                         for (j = 0;j < backgroundlayer->numframes;j++)
2557                         {
2558                                 if(cls.state == ca_dedicated)
2559                                 {
2560                                         texture->skinframes[j] = NULL;
2561                                 }
2562                                 else if (!(texture->backgroundskinframes[j] = R_SkinFrame_LoadExternal(backgroundlayer->texturename[j], (backgroundlayer->texflags & texflagsmask) | texflagsor, false)))
2563                                 {
2564                                         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);
2565                                         texture->backgroundskinframes[j] = R_SkinFrame_LoadMissing();
2566                                 }
2567                         }
2568                 }
2569                 if (shader->dpshadow)
2570                         texture->basematerialflags &= ~MATERIALFLAG_NOSHADOW;
2571                 if (shader->dpnoshadow)
2572                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW;
2573                 if (shader->dpnortlight)
2574                         texture->basematerialflags |= MATERIALFLAG_NORTLIGHT;
2575                 if (shader->vertexalpha)
2576                         texture->basematerialflags |= MATERIALFLAG_ALPHAGEN_VERTEX;
2577                 memcpy(texture->deforms, shader->deforms, sizeof(texture->deforms));
2578                 texture->reflectmin = shader->reflectmin;
2579                 texture->reflectmax = shader->reflectmax;
2580                 texture->refractfactor = shader->refractfactor;
2581                 Vector4Copy(shader->refractcolor4f, texture->refractcolor4f);
2582                 texture->reflectfactor = shader->reflectfactor;
2583                 Vector4Copy(shader->reflectcolor4f, texture->reflectcolor4f);
2584                 texture->r_water_wateralpha = shader->r_water_wateralpha;
2585                 Vector2Copy(shader->r_water_waterscroll, texture->r_water_waterscroll);
2586                 texture->offsetmapping = shader->offsetmapping;
2587                 texture->offsetscale = shader->offsetscale;
2588                 texture->offsetbias = shader->offsetbias;
2589                 texture->specularscalemod = shader->specularscalemod;
2590                 texture->specularpowermod = shader->specularpowermod;
2591                 texture->rtlightambient = shader->rtlightambient;
2592                 if (shader->dpreflectcube[0])
2593                         texture->reflectcubetexture = R_GetCubemap(shader->dpreflectcube);
2594
2595                 // set up default supercontents (on q3bsp this is overridden by the q3bsp loader)
2596                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2597                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents  = SUPERCONTENTS_LAVA         ;
2598                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents  = SUPERCONTENTS_SLIME        ;
2599                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents  = SUPERCONTENTS_WATER        ;
2600                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents  = 0                          ;
2601                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents  = SUPERCONTENTS_PLAYERCLIP   ;
2602                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents  = SUPERCONTENTS_MONSTERCLIP  ;
2603                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents  = SUPERCONTENTS_SKY          ;
2604
2605         //      if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->supercontents |= SUPERCONTENTS_ALPHASHADOW  ;
2606         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->supercontents |= SUPERCONTENTS_AREAPORTAL   ;
2607         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->supercontents |= SUPERCONTENTS_CLUSTERPORTAL;
2608         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->supercontents |= SUPERCONTENTS_DETAIL       ;
2609                 if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->supercontents |= SUPERCONTENTS_DONOTENTER   ;
2610         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->supercontents |= SUPERCONTENTS_FOG          ;
2611                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents |= SUPERCONTENTS_LAVA         ;
2612         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->supercontents |= SUPERCONTENTS_LIGHTFILTER  ;
2613         //      if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->supercontents |= SUPERCONTENTS_METALSTEPS   ;
2614         //      if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->supercontents |= SUPERCONTENTS_NODAMAGE     ;
2615         //      if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->supercontents |= SUPERCONTENTS_NODLIGHT     ;
2616         //      if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->supercontents |= SUPERCONTENTS_NODRAW       ;
2617                 if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->supercontents |= SUPERCONTENTS_NODROP       ;
2618         //      if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->supercontents |= SUPERCONTENTS_NOIMPACT     ;
2619         //      if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->supercontents |= SUPERCONTENTS_NOLIGHTMAP   ;
2620         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->supercontents |= SUPERCONTENTS_NOMARKS      ;
2621         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->supercontents |= SUPERCONTENTS_NOMIPMAPS    ;
2622                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents &=~SUPERCONTENTS_SOLID        ;
2623         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->supercontents |= SUPERCONTENTS_ORIGIN       ;
2624                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents |= SUPERCONTENTS_PLAYERCLIP   ;
2625                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents |= SUPERCONTENTS_SKY          ;
2626         //      if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->supercontents |= SUPERCONTENTS_SLICK        ;
2627                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents |= SUPERCONTENTS_SLIME        ;
2628         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->supercontents |= SUPERCONTENTS_STRUCTURAL   ;
2629         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->supercontents |= SUPERCONTENTS_TRANS        ;
2630                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents |= SUPERCONTENTS_WATER        ;
2631         //      if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->supercontents |= SUPERCONTENTS_POINTLIGHT   ;
2632         //      if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->supercontents |= SUPERCONTENTS_HINT         ;
2633         //      if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->supercontents |= SUPERCONTENTS_DUST         ;
2634                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents |= SUPERCONTENTS_BOTCLIP      | SUPERCONTENTS_MONSTERCLIP;
2635         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->supercontents |= SUPERCONTENTS_LIGHTGRID    ;
2636         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->supercontents |= SUPERCONTENTS_ANTIPORTAL   ;
2637
2638                 texture->surfaceflags = 0;
2639                 if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->surfaceflags |= Q3SURFACEFLAG_ALPHASHADOW  ;
2640         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_AREAPORTAL   ;
2641         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->surfaceflags |= Q3SURFACEFLAG_CLUSTERPORTAL;
2642         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->surfaceflags |= Q3SURFACEFLAG_DETAIL       ;
2643         //      if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->surfaceflags |= Q3SURFACEFLAG_DONOTENTER   ;
2644         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->surfaceflags |= Q3SURFACEFLAG_FOG          ;
2645         //      if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->surfaceflags |= Q3SURFACEFLAG_LAVA         ;
2646                 if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTFILTER  ;
2647                 if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->surfaceflags |= Q3SURFACEFLAG_METALSTEPS   ;
2648                 if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->surfaceflags |= Q3SURFACEFLAG_NODAMAGE     ;
2649                 if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->surfaceflags |= Q3SURFACEFLAG_NODLIGHT     ;
2650                 if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->surfaceflags |= Q3SURFACEFLAG_NODRAW       ;
2651         //      if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->surfaceflags |= Q3SURFACEFLAG_NODROP       ;
2652                 if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->surfaceflags |= Q3SURFACEFLAG_NOIMPACT     ;
2653                 if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->surfaceflags |= Q3SURFACEFLAG_NOLIGHTMAP   ;
2654                 if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->surfaceflags |= Q3SURFACEFLAG_NOMARKS      ;
2655         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->surfaceflags |= Q3SURFACEFLAG_NOMIPMAPS    ;
2656                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->surfaceflags |= Q3SURFACEFLAG_NONSOLID     ;
2657         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->surfaceflags |= Q3SURFACEFLAG_ORIGIN       ;
2658         //      if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->surfaceflags |= Q3SURFACEFLAG_PLAYERCLIP   ;
2659                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->surfaceflags |= Q3SURFACEFLAG_SKY          ;
2660                 if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->surfaceflags |= Q3SURFACEFLAG_SLICK        ;
2661         //      if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->surfaceflags |= Q3SURFACEFLAG_SLIME        ;
2662         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->surfaceflags |= Q3SURFACEFLAG_STRUCTURAL   ;
2663         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->surfaceflags |= Q3SURFACEFLAG_TRANS        ;
2664         //      if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->surfaceflags |= Q3SURFACEFLAG_WATER        ;
2665                 if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->surfaceflags |= Q3SURFACEFLAG_POINTLIGHT   ;
2666                 if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->surfaceflags |= Q3SURFACEFLAG_HINT         ;
2667                 if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->surfaceflags |= Q3SURFACEFLAG_DUST         ;
2668         //      if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->surfaceflags |= Q3SURFACEFLAG_BOTCLIP      ;
2669         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTGRID    ;
2670         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_ANTIPORTAL   ;
2671
2672                 if (shader->dpmeshcollisions)
2673                         texture->basematerialflags |= MATERIALFLAG_MESHCOLLISIONS;
2674                 if (shader->dpshaderkill && developer_extra.integer)
2675                         Con_DPrintf("^1%s:^7 killing shader ^3\"%s\" because of cvar\n", loadmodel->name, name);
2676         }
2677         else if (!strcmp(texture->name, "noshader") || !texture->name[0])
2678         {
2679                 if (developer_extra.integer)
2680                         Con_DPrintf("^1%s:^7 using fallback noshader material for ^3\"%s\"\n", loadmodel->name, name);
2681                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2682         }
2683         else if (!strcmp(texture->name, "common/nodraw") || !strcmp(texture->name, "textures/common/nodraw"))
2684         {
2685                 if (developer_extra.integer)
2686                         Con_DPrintf("^1%s:^7 using fallback nodraw material for ^3\"%s\"\n", loadmodel->name, name);
2687                 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2688                 texture->supercontents = SUPERCONTENTS_SOLID;
2689         }
2690         else
2691         {
2692                 if (developer_extra.integer)
2693                         Con_DPrintf("^1%s:^7 No shader found for texture ^3\"%s\"\n", loadmodel->name, texture->name);
2694                 if (texture->surfaceflags & Q3SURFACEFLAG_NODRAW)
2695                 {
2696                         texture->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2697                         texture->supercontents = SUPERCONTENTS_SOLID;
2698                 }
2699                 else if (texture->surfaceflags & Q3SURFACEFLAG_SKY)
2700                 {
2701                         texture->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2702                         texture->supercontents = SUPERCONTENTS_SKY;
2703                 }
2704                 else
2705                 {
2706                         texture->basematerialflags |= MATERIALFLAG_WALL;
2707                         texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2708                 }
2709                 texture->numskinframes = 1;
2710                 if(cls.state == ca_dedicated)
2711                 {
2712                         texture->skinframes[0] = NULL;
2713                         success = false;
2714                 }
2715                 else
2716                 {
2717                         if (fallback)
2718                         {
2719                                 if ((texture->skinframes[0] = R_SkinFrame_LoadExternal(texture->name, defaulttexflags, false)))
2720                                 {
2721                                         if(texture->skinframes[0]->hasalpha)
2722                                                 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2723                                 }
2724                                 else
2725                                         success = false;
2726                         }
2727                         else
2728                                 success = false;
2729                         if (!success && warnmissing)
2730                                 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"\n", loadmodel->name, texture->name);
2731                 }
2732         }
2733         // init the animation variables
2734         texture->currentframe = texture;
2735         if (texture->numskinframes < 1)
2736                 texture->numskinframes = 1;
2737         if (!texture->skinframes[0])
2738                 texture->skinframes[0] = R_SkinFrame_LoadMissing();
2739         texture->currentskinframe = texture->skinframes[0];
2740         texture->backgroundcurrentskinframe = texture->backgroundskinframes[0];
2741         return success;
2742 }
2743
2744 skinfile_t *Mod_LoadSkinFiles(void)
2745 {
2746         int i, words, line, wordsoverflow;
2747         char *text;
2748         const char *data;
2749         skinfile_t *skinfile = NULL, *first = NULL;
2750         skinfileitem_t *skinfileitem;
2751         char word[10][MAX_QPATH];
2752         char vabuf[1024];
2753
2754 /*
2755 sample file:
2756 U_bodyBox,models/players/Legoman/BikerA2.tga
2757 U_RArm,models/players/Legoman/BikerA1.tga
2758 U_LArm,models/players/Legoman/BikerA1.tga
2759 U_armor,common/nodraw
2760 U_sword,common/nodraw
2761 U_shield,common/nodraw
2762 U_homb,common/nodraw
2763 U_backpack,common/nodraw
2764 U_colcha,common/nodraw
2765 tag_head,
2766 tag_weapon,
2767 tag_torso,
2768 */
2769         memset(word, 0, sizeof(word));
2770         for (i = 0;i < 256 && (data = text = (char *)FS_LoadFile(va(vabuf, sizeof(vabuf), "%s_%i.skin", loadmodel->name, i), tempmempool, true, NULL));i++)
2771         {
2772                 // If it's the first file we parse
2773                 if (skinfile == NULL)
2774                 {
2775                         skinfile = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2776                         first = skinfile;
2777                 }
2778                 else
2779                 {
2780                         skinfile->next = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2781                         skinfile = skinfile->next;
2782                 }
2783                 skinfile->next = NULL;
2784
2785                 for(line = 0;;line++)
2786                 {
2787                         // parse line
2788                         if (!COM_ParseToken_QuakeC(&data, true))
2789                                 break;
2790                         if (!strcmp(com_token, "\n"))
2791                                 continue;
2792                         words = 0;
2793                         wordsoverflow = false;
2794                         do
2795                         {
2796                                 if (words < 10)
2797                                         strlcpy(word[words++], com_token, sizeof (word[0]));
2798                                 else
2799                                         wordsoverflow = true;
2800                         }
2801                         while (COM_ParseToken_QuakeC(&data, true) && strcmp(com_token, "\n"));
2802                         if (wordsoverflow)
2803                         {
2804                                 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);
2805                                 continue;
2806                         }
2807                         // words is always >= 1
2808                         if (!strcmp(word[0], "replace"))
2809                         {
2810                                 if (words == 3)
2811                                 {
2812                                         if (developer_loading.integer)
2813                                                 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
2814                                         skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2815                                         skinfileitem->next = skinfile->items;
2816                                         skinfile->items = skinfileitem;
2817                                         strlcpy (skinfileitem->name, word[1], sizeof (skinfileitem->name));
2818                                         strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2819                                 }
2820                                 else
2821                                         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]);
2822                         }
2823                         else if (words >= 2 && !strncmp(word[0], "tag_", 4))
2824                         {
2825                                 // tag name, like "tag_weapon,"
2826                                 // not used for anything (not even in Quake3)
2827                         }
2828                         else if (words >= 2 && !strcmp(word[1], ","))
2829                         {
2830                                 // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
2831                                 if (developer_loading.integer)
2832                                         Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
2833                                 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2834                                 skinfileitem->next = skinfile->items;
2835                                 skinfile->items = skinfileitem;
2836                                 strlcpy (skinfileitem->name, word[0], sizeof (skinfileitem->name));
2837                                 strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2838                         }
2839                         else
2840                                 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);
2841                 }
2842                 Mem_Free(text);
2843         }
2844         if (i)
2845                 loadmodel->numskins = i;
2846         return first;
2847 }
2848
2849 void Mod_FreeSkinFiles(skinfile_t *skinfile)
2850 {
2851         skinfile_t *next;
2852         skinfileitem_t *skinfileitem, *nextitem;
2853         for (;skinfile;skinfile = next)
2854         {
2855                 next = skinfile->next;
2856                 for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
2857                 {
2858                         nextitem = skinfileitem->next;
2859                         Mem_Free(skinfileitem);
2860                 }
2861                 Mem_Free(skinfile);
2862         }
2863 }
2864
2865 int Mod_CountSkinFiles(skinfile_t *skinfile)
2866 {
2867         int i;
2868         for (i = 0;skinfile;skinfile = skinfile->next, i++);
2869         return i;
2870 }
2871
2872 void Mod_SnapVertices(int numcomponents, int numvertices, float *vertices, float snap)
2873 {
2874         int i;
2875         double isnap = 1.0 / snap;
2876         for (i = 0;i < numvertices*numcomponents;i++)
2877                 vertices[i] = floor(vertices[i]*isnap)*snap;
2878 }
2879
2880 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
2881 {
2882         int i, outtriangles;
2883         float edgedir1[3], edgedir2[3], temp[3];
2884         // a degenerate triangle is one with no width (thickness, surface area)
2885         // these are characterized by having all 3 points colinear (along a line)
2886         // or having two points identical
2887         // the simplest check is to calculate the triangle's area
2888         for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
2889         {
2890                 // calculate first edge
2891                 VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir1);
2892                 VectorSubtract(vertex3f + inelement3i[2] * 3, vertex3f + inelement3i[0] * 3, edgedir2);
2893                 CrossProduct(edgedir1, edgedir2, temp);
2894                 if (VectorLength2(temp) < 0.001f)
2895                         continue; // degenerate triangle (no area)
2896                 // valid triangle (has area)
2897                 VectorCopy(inelement3i, outelement3i);
2898                 outelement3i += 3;
2899                 outtriangles++;
2900         }
2901         return outtriangles;
2902 }
2903
2904 void Mod_VertexRangeFromElements(int numelements, const int *elements, int *firstvertexpointer, int *lastvertexpointer)
2905 {
2906         int i, e;
2907         int firstvertex, lastvertex;
2908         if (numelements > 0 && elements)
2909         {
2910                 firstvertex = lastvertex = elements[0];
2911                 for (i = 1;i < numelements;i++)
2912                 {
2913                         e = elements[i];
2914                         firstvertex = min(firstvertex, e);
2915                         lastvertex = max(lastvertex, e);
2916                 }
2917         }
2918         else
2919                 firstvertex = lastvertex = 0;
2920         if (firstvertexpointer)
2921                 *firstvertexpointer = firstvertex;
2922         if (lastvertexpointer)
2923                 *lastvertexpointer = lastvertex;
2924 }
2925
2926 void Mod_MakeSortedSurfaces(dp_model_t *mod)
2927 {
2928         // make an optimal set of texture-sorted batches to draw...
2929         int j, t;
2930         int *firstsurfacefortexture;
2931         int *numsurfacesfortexture;
2932         if (!mod->sortedmodelsurfaces)
2933                 mod->sortedmodelsurfaces = (int *) Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->sortedmodelsurfaces));
2934         firstsurfacefortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*firstsurfacefortexture));
2935         numsurfacesfortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*numsurfacesfortexture));
2936         memset(numsurfacesfortexture, 0, mod->num_textures * sizeof(*numsurfacesfortexture));
2937         for (j = 0;j < mod->nummodelsurfaces;j++)
2938         {
2939                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2940                 int t = (int)(surface->texture - mod->data_textures);
2941                 numsurfacesfortexture[t]++;
2942         }
2943         j = 0;
2944         for (t = 0;t < mod->num_textures;t++)
2945         {
2946                 firstsurfacefortexture[t] = j;
2947                 j += numsurfacesfortexture[t];
2948         }
2949         for (j = 0;j < mod->nummodelsurfaces;j++)
2950         {
2951                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2952                 int t = (int)(surface->texture - mod->data_textures);
2953                 mod->sortedmodelsurfaces[firstsurfacefortexture[t]++] = j + mod->firstmodelsurface;
2954         }
2955         Mem_Free(firstsurfacefortexture);
2956         Mem_Free(numsurfacesfortexture);
2957 }
2958
2959 void Mod_BuildVBOs(void)
2960 {
2961         if (!loadmodel->surfmesh.num_vertices)
2962                 return;
2963
2964         if (gl_paranoid.integer && loadmodel->surfmesh.data_element3s && loadmodel->surfmesh.data_element3i)
2965         {
2966                 int i;
2967                 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2968                 {
2969                         if (loadmodel->surfmesh.data_element3s[i] != loadmodel->surfmesh.data_element3i[i])
2970                         {
2971                                 Con_Printf("Mod_BuildVBOs: element %u is incorrect (%u should be %u)\n", i, loadmodel->surfmesh.data_element3s[i], loadmodel->surfmesh.data_element3i[i]);
2972                                 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
2973                         }
2974                 }
2975         }
2976
2977         // build r_vertexmesh_t array
2978         // (compressed interleaved array for D3D)
2979         if (!loadmodel->surfmesh.vertexmesh && vid.useinterleavedarrays)
2980         {
2981                 int vertexindex;
2982                 int numvertices = loadmodel->surfmesh.num_vertices;
2983                 r_vertexmesh_t *vertexmesh;
2984                 loadmodel->surfmesh.vertexmesh = vertexmesh = (r_vertexmesh_t*)Mem_Alloc(loadmodel->mempool, numvertices * sizeof(*loadmodel->surfmesh.vertexmesh));
2985                 for (vertexindex = 0;vertexindex < numvertices;vertexindex++, vertexmesh++)
2986                 {
2987                         VectorCopy(loadmodel->surfmesh.data_vertex3f + 3*vertexindex, vertexmesh->vertex3f);
2988                         VectorScale(loadmodel->surfmesh.data_svector3f + 3*vertexindex, 1.0f, vertexmesh->svector3f);
2989                         VectorScale(loadmodel->surfmesh.data_tvector3f + 3*vertexindex, 1.0f, vertexmesh->tvector3f);
2990                         VectorScale(loadmodel->surfmesh.data_normal3f + 3*vertexindex, 1.0f, vertexmesh->normal3f);
2991                         if (loadmodel->surfmesh.data_lightmapcolor4f)
2992                                 Vector4Copy(loadmodel->surfmesh.data_lightmapcolor4f + 4*vertexindex, vertexmesh->color4f);
2993                         Vector2Copy(loadmodel->surfmesh.data_texcoordtexture2f + 2*vertexindex, vertexmesh->texcoordtexture2f);
2994                         if (loadmodel->surfmesh.data_texcoordlightmap2f)
2995                                 Vector2Scale(loadmodel->surfmesh.data_texcoordlightmap2f + 2*vertexindex, 1.0f, vertexmesh->texcoordlightmap2f);
2996                 }
2997         }
2998
2999         // upload r_vertexmesh_t array as a buffer
3000         if (loadmodel->surfmesh.vertexmesh && !loadmodel->surfmesh.vertexmeshbuffer)
3001                 loadmodel->surfmesh.vertexmeshbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.vertexmesh, loadmodel->surfmesh.num_vertices * sizeof(*loadmodel->surfmesh.vertexmesh), loadmodel->name, false, false, false);
3002
3003         // upload vertex3f array as a buffer
3004         if (loadmodel->surfmesh.data_vertex3f && !loadmodel->surfmesh.vertex3fbuffer)
3005                 loadmodel->surfmesh.vertex3fbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.num_vertices * sizeof(float[3]), loadmodel->name, false, false, false);
3006
3007         // upload short indices as a buffer
3008         if (loadmodel->surfmesh.data_element3s && !loadmodel->surfmesh.data_element3s_indexbuffer)
3009                 loadmodel->surfmesh.data_element3s_indexbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_element3s, loadmodel->surfmesh.num_triangles * sizeof(short[3]), loadmodel->name, true, false, true);
3010
3011         // upload int indices as a buffer
3012         if (loadmodel->surfmesh.data_element3i && !loadmodel->surfmesh.data_element3i_indexbuffer && !loadmodel->surfmesh.data_element3s)
3013                 loadmodel->surfmesh.data_element3i_indexbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles * sizeof(int[3]), loadmodel->name, true, false, false);
3014
3015         // only build a vbo if one has not already been created (this is important for brush models which load specially)
3016         // vertex buffer is several arrays and we put them in the same buffer
3017         //
3018         // is this wise?  the texcoordtexture2f array is used with dynamic
3019         // vertex/svector/tvector/normal when rendering animated models, on the
3020         // other hand animated models don't use a lot of vertices anyway...
3021         if (!loadmodel->surfmesh.vbo_vertexbuffer && !vid.useinterleavedarrays)
3022         {
3023                 size_t size;
3024                 unsigned char *mem;
3025                 size = 0;
3026                 loadmodel->surfmesh.vbooffset_vertex3f           = size;if (loadmodel->surfmesh.data_vertex3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3027                 loadmodel->surfmesh.vbooffset_svector3f          = size;if (loadmodel->surfmesh.data_svector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3028                 loadmodel->surfmesh.vbooffset_tvector3f          = size;if (loadmodel->surfmesh.data_tvector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3029                 loadmodel->surfmesh.vbooffset_normal3f           = size;if (loadmodel->surfmesh.data_normal3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3030                 loadmodel->surfmesh.vbooffset_texcoordtexture2f  = size;if (loadmodel->surfmesh.data_texcoordtexture2f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
3031                 loadmodel->surfmesh.vbooffset_texcoordlightmap2f = size;if (loadmodel->surfmesh.data_texcoordlightmap2f) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
3032                 loadmodel->surfmesh.vbooffset_lightmapcolor4f    = size;if (loadmodel->surfmesh.data_lightmapcolor4f   ) size += loadmodel->surfmesh.num_vertices * sizeof(float[4]);
3033                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
3034                 if (loadmodel->surfmesh.data_vertex3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_vertex3f          , loadmodel->surfmesh.data_vertex3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3035                 if (loadmodel->surfmesh.data_svector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_svector3f         , loadmodel->surfmesh.data_svector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3036                 if (loadmodel->surfmesh.data_tvector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_tvector3f         , loadmodel->surfmesh.data_tvector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3037                 if (loadmodel->surfmesh.data_normal3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_normal3f          , loadmodel->surfmesh.data_normal3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3038                 if (loadmodel->surfmesh.data_texcoordtexture2f ) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordtexture2f , loadmodel->surfmesh.data_texcoordtexture2f , loadmodel->surfmesh.num_vertices * sizeof(float[2]));
3039                 if (loadmodel->surfmesh.data_texcoordlightmap2f) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordlightmap2f, loadmodel->surfmesh.data_texcoordlightmap2f, loadmodel->surfmesh.num_vertices * sizeof(float[2]));
3040                 if (loadmodel->surfmesh.data_lightmapcolor4f   ) memcpy(mem + loadmodel->surfmesh.vbooffset_lightmapcolor4f   , loadmodel->surfmesh.data_lightmapcolor4f   , loadmodel->surfmesh.num_vertices * sizeof(float[4]));
3041                 loadmodel->surfmesh.vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, loadmodel->name, false, false, false);
3042                 Mem_Free(mem);
3043         }
3044 }
3045
3046 static void Mod_Decompile_OBJ(dp_model_t *model, const char *filename, const char *mtlfilename, const char *originalfilename)
3047 {
3048         int submodelindex, vertexindex, surfaceindex, triangleindex, textureindex, countvertices = 0, countsurfaces = 0, countfaces = 0, counttextures = 0;
3049         int a, b, c;
3050         const char *texname;
3051         const int *e;
3052         const float *v, *vn, *vt;
3053         size_t l;
3054         size_t outbufferpos = 0;
3055         size_t outbuffermax = 0x100000;
3056         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3057         const msurface_t *surface;
3058         const int maxtextures = 256;
3059         char *texturenames = (char *) Z_Malloc(maxtextures * MAX_QPATH);
3060         dp_model_t *submodel;
3061
3062         // construct the mtllib file
3063         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "# mtllib for %s exported by darkplaces engine\n", originalfilename);
3064         if (l > 0)
3065                 outbufferpos += l;
3066         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3067         {
3068                 countsurfaces++;
3069                 countvertices += surface->num_vertices;
3070                 countfaces += surface->num_triangles;
3071                 texname = (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default";
3072                 for (textureindex = 0;textureindex < counttextures;textureindex++)
3073                         if (!strcmp(texturenames + textureindex * MAX_QPATH, texname))
3074                                 break;
3075                 if (textureindex < counttextures)
3076                         continue; // already wrote this material entry
3077                 if (textureindex >= maxtextures)
3078                         continue; // just a precaution
3079                 textureindex = counttextures++;
3080                 strlcpy(texturenames + textureindex * MAX_QPATH, texname, MAX_QPATH);
3081                 if (outbufferpos >= outbuffermax >> 1)
3082                 {
3083                         outbuffermax *= 2;
3084                         oldbuffer = outbuffer;
3085                         outbuffer = (char *) Z_Malloc(outbuffermax);
3086                         memcpy(outbuffer, oldbuffer, outbufferpos);
3087                         Z_Free(oldbuffer);
3088                 }
3089                 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");
3090                 if (l > 0)
3091                         outbufferpos += l;
3092         }
3093
3094         // write the mtllib file
3095         FS_WriteFile(mtlfilename, outbuffer, outbufferpos);
3096
3097         // construct the obj file
3098         outbufferpos = 0;
3099         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);
3100         if (l > 0)
3101                 outbufferpos += l;
3102
3103         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)
3104         {
3105                 if (outbufferpos >= outbuffermax >> 1)
3106                 {
3107                         outbuffermax *= 2;
3108                         oldbuffer = outbuffer;
3109                         outbuffer = (char *) Z_Malloc(outbuffermax);
3110                         memcpy(outbuffer, oldbuffer, outbufferpos);
3111                         Z_Free(oldbuffer);
3112                 }
3113                 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]);
3114                 if (l > 0)
3115                         outbufferpos += l;
3116         }
3117
3118         for (submodelindex = 0;submodelindex < max(1, model->brush.numsubmodels);submodelindex++)
3119         {
3120                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "o %i\n", submodelindex);
3121                 if (l > 0)
3122                         outbufferpos += l;
3123                 submodel = model->brush.numsubmodels ? model->brush.submodels[submodelindex] : model;
3124                 for (surfaceindex = 0;surfaceindex < submodel->nummodelsurfaces;surfaceindex++)
3125                 {
3126                         surface = model->data_surfaces + submodel->sortedmodelsurfaces[surfaceindex];
3127                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "usemtl %s\n", (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default");
3128                         if (l > 0)
3129                                 outbufferpos += l;
3130                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3131                         {
3132                                 if (outbufferpos >= outbuffermax >> 1)
3133                                 {
3134                                         outbuffermax *= 2;
3135                                         oldbuffer = outbuffer;
3136                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3137                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3138                                         Z_Free(oldbuffer);
3139                                 }
3140                                 a = e[0]+1;
3141                                 b = e[1]+1;
3142                                 c = e[2]+1;
3143                                 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);
3144                                 if (l > 0)
3145                                         outbufferpos += l;
3146                         }
3147                 }
3148         }
3149
3150         // write the obj file
3151         FS_WriteFile(filename, outbuffer, outbufferpos);
3152
3153         // clean up
3154         Z_Free(outbuffer);
3155         Z_Free(texturenames);
3156
3157         // print some stats
3158         Con_Printf("Wrote %s (%i bytes, %i vertices, %i faces, %i surfaces with %i distinct textures)\n", filename, (int)outbufferpos, countvertices, countfaces, countsurfaces, counttextures);
3159 }
3160
3161 static void Mod_Decompile_SMD(dp_model_t *model, const char *filename, int firstpose, int numposes, qboolean writetriangles)
3162 {
3163         int countnodes = 0, counttriangles = 0, countframes = 0;
3164         int surfaceindex;
3165         int triangleindex;
3166         int transformindex;
3167         int poseindex;
3168         int cornerindex;
3169         const int *e;
3170         size_t l;
3171         size_t outbufferpos = 0;
3172         size_t outbuffermax = 0x100000;
3173         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3174         const msurface_t *surface;
3175         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "version 1\nnodes\n");
3176         if (l > 0)
3177                 outbufferpos += l;
3178         for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3179         {
3180                 if (outbufferpos >= outbuffermax >> 1)
3181                 {
3182                         outbuffermax *= 2;
3183                         oldbuffer = outbuffer;
3184                         outbuffer = (char *) Z_Malloc(outbuffermax);
3185                         memcpy(outbuffer, oldbuffer, outbufferpos);
3186                         Z_Free(oldbuffer);
3187                 }
3188                 countnodes++;
3189                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i \"%s\" %3i\n", transformindex, model->data_bones[transformindex].name, model->data_bones[transformindex].parent);
3190                 if (l > 0)
3191                         outbufferpos += l;
3192         }
3193         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\nskeleton\n");
3194         if (l > 0)
3195                 outbufferpos += l;
3196         for (poseindex = 0;poseindex < numposes;poseindex++)
3197         {
3198                 countframes++;
3199                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "time %i\n", poseindex);
3200                 if (l > 0)
3201                         outbufferpos += l;
3202                 for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3203                 {
3204                         float angles[3];
3205                         float mtest[4][3];
3206                         matrix4x4_t posematrix;
3207                         if (outbufferpos >= outbuffermax >> 1)
3208                         {
3209                                 outbuffermax *= 2;
3210                                 oldbuffer = outbuffer;
3211                                 outbuffer = (char *) Z_Malloc(outbuffermax);
3212                                 memcpy(outbuffer, oldbuffer, outbufferpos);
3213                                 Z_Free(oldbuffer);
3214                         }
3215
3216                         // strangely the smd angles are for a transposed matrix, so we
3217                         // have to generate a transposed matrix, then convert that...
3218                         Matrix4x4_FromBonePose6s(&posematrix, model->num_posescale, model->data_poses6s + 6*(model->num_bones * poseindex + transformindex));
3219                         Matrix4x4_ToArray12FloatGL(&posematrix, mtest[0]);
3220                         AnglesFromVectors(angles, mtest[0], mtest[2], false);
3221                         if (angles[0] >= 180) angles[0] -= 360;
3222                         if (angles[1] >= 180) angles[1] -= 360;
3223                         if (angles[2] >= 180) angles[2] -= 360;
3224
3225 #if 0
3226 {
3227                         float a = DEG2RAD(angles[ROLL]);
3228                         float b = DEG2RAD(angles[PITCH]);
3229                         float c = DEG2RAD(angles[YAW]);
3230                         float cy, sy, cp, sp, cr, sr;
3231                         float test[4][3];
3232                         // smd matrix construction, for comparing
3233                         sy = sin(c);
3234                         cy = cos(c);
3235                         sp = sin(b);
3236                         cp = cos(b);
3237                         sr = sin(a);
3238                         cr = cos(a);
3239
3240                         test[0][0] = cp*cy;
3241                         test[0][1] = cp*sy;
3242                         test[0][2] = -sp;
3243                         test[1][0] = sr*sp*cy+cr*-sy;
3244                         test[1][1] = sr*sp*sy+cr*cy;
3245                         test[1][2] = sr*cp;
3246                         test[2][0] = (cr*sp*cy+-sr*-sy);
3247                         test[2][1] = (cr*sp*sy+-sr*cy);
3248                         test[2][2] = cr*cp;
3249                         test[3][0] = pose[9];
3250                         test[3][1] = pose[10];
3251                         test[3][2] = pose[11];
3252 }
3253 #endif
3254                         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]));
3255                         if (l > 0)
3256                                 outbufferpos += l;
3257                 }
3258         }
3259         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3260         if (l > 0)
3261                 outbufferpos += l;
3262         if (writetriangles)
3263         {
3264                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "triangles\n");
3265                 if (l > 0)
3266                         outbufferpos += l;
3267                 for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3268                 {
3269                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3270                         {
3271                                 counttriangles++;
3272                                 if (outbufferpos >= outbuffermax >> 1)
3273                                 {
3274                                         outbuffermax *= 2;
3275                                         oldbuffer = outbuffer;
3276                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3277                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3278                                         Z_Free(oldbuffer);
3279                                 }
3280                                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%s\n", surface->texture && surface->texture->name[0] ? surface->texture->name : "default.bmp");
3281                                 if (l > 0)
3282                                         outbufferpos += l;
3283                                 for (cornerindex = 0;cornerindex < 3;cornerindex++)
3284                                 {
3285                                         const int index = e[2-cornerindex];
3286                                         const float *v = model->surfmesh.data_vertex3f + index * 3;
3287                                         const float *vn = model->surfmesh.data_normal3f + index * 3;
3288                                         const float *vt = model->surfmesh.data_texcoordtexture2f + index * 2;
3289                                         const int b = model->surfmesh.blends[index];
3290                                         if (b < model->num_bones)
3291                                                 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]);
3292                                         else
3293                                         {
3294                                                 const blendweights_t *w = model->surfmesh.data_blendweights + b - model->num_bones;
3295                                                 const unsigned char *wi = w->index;
3296                                                 const unsigned char *wf = w->influence;
3297                                             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);
3298                                                 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);
3299                                                 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);
3300                                                 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]);
3301                                         }
3302                                         if (l > 0)
3303                                                 outbufferpos += l;
3304                                 }
3305                         }
3306                 }
3307                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3308                 if (l > 0)
3309                         outbufferpos += l;
3310         }
3311
3312         FS_WriteFile(filename, outbuffer, outbufferpos);
3313         Z_Free(outbuffer);
3314
3315         Con_Printf("Wrote %s (%i bytes, %i nodes, %i frames, %i triangles)\n", filename, (int)outbufferpos, countnodes, countframes, counttriangles);
3316 }
3317
3318 /*
3319 ================
3320 Mod_Decompile_f
3321
3322 decompiles a model to editable files
3323 ================
3324 */
3325 static void Mod_Decompile_f(void)
3326 {
3327         int i, j, k, l, first, count;
3328         dp_model_t *mod;
3329         char inname[MAX_QPATH];
3330         char outname[MAX_QPATH];
3331         char mtlname[MAX_QPATH];
3332         char basename[MAX_QPATH];
3333         char animname[MAX_QPATH];
3334         char animname2[MAX_QPATH];
3335         char zymtextbuffer[16384];
3336         char dpmtextbuffer[16384];
3337         char framegroupstextbuffer[16384];
3338         int zymtextsize = 0;
3339         int dpmtextsize = 0;
3340         int framegroupstextsize = 0;
3341         char vabuf[1024];
3342
3343         if (Cmd_Argc() != 2)
3344         {
3345                 Con_Print("usage: modeldecompile <filename>\n");
3346                 return;
3347         }
3348
3349         strlcpy(inname, Cmd_Argv(1), sizeof(inname));
3350         FS_StripExtension(inname, basename, sizeof(basename));
3351
3352         mod = Mod_ForName(inname, false, true, inname[0] == '*' ? cl.model_name[1] : NULL);
3353         if (mod->brush.submodel)
3354         {
3355                 // if we're decompiling a submodel, be sure to give it a proper name based on its parent
3356                 FS_StripExtension(cl.model_name[1], outname, sizeof(outname));
3357                 dpsnprintf(basename, sizeof(basename), "%s/%s", outname, mod->name);
3358                 outname[0] = 0;
3359         }
3360         if (!mod)
3361         {
3362                 Con_Print("No such model\n");
3363                 return;
3364         }
3365         if (!mod->surfmesh.num_triangles)
3366         {
3367                 Con_Print("Empty model (or sprite)\n");
3368                 return;
3369         }
3370
3371         // export OBJ if possible (not on sprites)
3372         if (mod->surfmesh.num_triangles)
3373         {
3374                 dpsnprintf(outname, sizeof(outname), "%s_decompiled.obj", basename);
3375                 dpsnprintf(mtlname, sizeof(mtlname), "%s_decompiled.mtl", basename);
3376                 Mod_Decompile_OBJ(mod, outname, mtlname, inname);
3377         }
3378
3379         // export SMD if possible (only for skeletal models)
3380         if (mod->surfmesh.num_triangles && mod->num_bones)
3381         {
3382                 dpsnprintf(outname, sizeof(outname), "%s_decompiled/ref1.smd", basename);
3383                 Mod_Decompile_SMD(mod, outname, 0, 1, true);
3384                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "output out.zym\nscale 1\norigin 0 0 0\nmesh ref1.smd\n");
3385                 if (l > 0) zymtextsize += l;
3386                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "outputdir .\nmodel out\nscale 1\norigin 0 0 0\nscene ref1.smd\n");
3387                 if (l > 0) dpmtextsize += l;
3388                 for (i = 0;i < mod->numframes;i = j)
3389                 {
3390                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3391                         first = mod->animscenes[i].firstframe;
3392                         if (mod->animscenes[i].framecount > 1)
3393                         {
3394                                 // framegroup anim
3395                                 count = mod->animscenes[i].framecount;
3396                                 j = i + 1;
3397                         }
3398                         else
3399                         {
3400                                 // individual frame
3401                                 // check for additional frames with same name
3402                                 for (l = 0, k = strlen(animname);animname[l];l++)
3403                                         if(animname[l] < '0' || animname[l] > '9')
3404                                                 k = l + 1;
3405                                 if(k > 0 && animname[k-1] == '_')
3406                                         --k;
3407                                 animname[k] = 0;
3408                                 count = mod->num_poses - first;
3409                                 for (j = i + 1;j < mod->numframes;j++)
3410                                 {
3411                                         strlcpy(animname2, mod->animscenes[j].name, sizeof(animname2));
3412                                         for (l = 0, k = strlen(animname2);animname2[l];l++)
3413                                                 if(animname2[l] < '0' || animname2[l] > '9')
3414                                                         k = l + 1;
3415                                         if(k > 0 && animname[k-1] == '_')
3416                                                 --k;
3417                                         animname2[k] = 0;
3418                                         if (strcmp(animname2, animname) || mod->animscenes[j].framecount > 1)
3419                                         {
3420                                                 count = mod->animscenes[j].firstframe - first;
3421                                                 break;
3422                                         }
3423                                 }
3424                                 // if it's only one frame, use the original frame name
3425                                 if (j == i + 1)
3426                                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3427
3428                         }
3429                         dpsnprintf(outname, sizeof(outname), "%s_decompiled/%s.smd", basename, animname);
3430                         Mod_Decompile_SMD(mod, outname, first, count, false);
3431                         if (zymtextsize < (int)sizeof(zymtextbuffer) - 100)
3432                         {
3433                                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3434                                 if (l > 0) zymtextsize += l;
3435                         }
3436                         if (dpmtextsize < (int)sizeof(dpmtextbuffer) - 100)
3437                         {
3438                                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3439                                 if (l > 0) dpmtextsize += l;
3440                         }
3441                         if (framegroupstextsize < (int)sizeof(framegroupstextbuffer) - 100)
3442                         {
3443                                 l = dpsnprintf(framegroupstextbuffer + framegroupstextsize, sizeof(framegroupstextbuffer) - framegroupstextsize, "%d %d %f %d // %s\n", first, count, mod->animscenes[i].framerate, mod->animscenes[i].loop, animname);
3444                                 if (l > 0) framegroupstextsize += l;
3445                         }
3446                 }
3447                 if (zymtextsize)
3448                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_zym.txt", basename), zymtextbuffer, (fs_offset_t)zymtextsize);
3449                 if (dpmtextsize)
3450                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_dpm.txt", basename), dpmtextbuffer, (fs_offset_t)dpmtextsize);
3451                 if (framegroupstextsize)
3452                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled.framegroups", basename), framegroupstextbuffer, (fs_offset_t)framegroupstextsize);
3453         }
3454 }
3455
3456 void Mod_AllocLightmap_Init(mod_alloclightmap_state_t *state, int width, int height)
3457 {
3458         int y;
3459         memset(state, 0, sizeof(*state));
3460         state->width = width;
3461         state->height = height;
3462         state->currentY = 0;
3463         state->rows = (mod_alloclightmap_row_t *)Mem_Alloc(loadmodel->mempool, state->height * sizeof(*state->rows));
3464         for (y = 0;y < state->height;y++)
3465         {
3466                 state->rows[y].currentX = 0;
3467                 state->rows[y].rowY = -1;
3468         }
3469 }
3470
3471 void Mod_AllocLightmap_Reset(mod_alloclightmap_state_t *state)
3472 {
3473         int y;
3474         state->currentY = 0;
3475         for (y = 0;y < state->height;y++)
3476         {
3477                 state->rows[y].currentX = 0;
3478                 state->rows[y].rowY = -1;
3479         }
3480 }
3481
3482 void Mod_AllocLightmap_Free(mod_alloclightmap_state_t *state)
3483 {
3484         if (state->rows)
3485                 Mem_Free(state->rows);
3486         memset(state, 0, sizeof(*state));
3487 }
3488
3489 qboolean Mod_AllocLightmap_Block(mod_alloclightmap_state_t *state, int blockwidth, int blockheight, int *outx, int *outy)
3490 {
3491         mod_alloclightmap_row_t *row;
3492         int y;
3493
3494         row = state->rows + blockheight;
3495         if ((row->rowY < 0) || (row->currentX + blockwidth > state->width))
3496         {
3497                 if (state->currentY + blockheight <= state->height)
3498                 {
3499                         // use the current allocation position
3500                         row->rowY = state->currentY;
3501                         row->currentX = 0;
3502                         state->currentY += blockheight;
3503                 }
3504                 else
3505                 {
3506                         // find another position
3507                         for (y = blockheight;y < state->height;y++)
3508                         {
3509                                 if ((state->rows[y].rowY >= 0) && (state->rows[y].currentX + blockwidth <= state->width))
3510                                 {
3511                                         row = state->rows + y;
3512                                         break;
3513                                 }
3514                         }
3515                         if (y == state->height)
3516                                 return false;
3517                 }
3518         }
3519         *outy = row->rowY;
3520         *outx = row->currentX;
3521         row->currentX += blockwidth;
3522
3523         return true;
3524 }
3525
3526 typedef struct lightmapsample_s
3527 {
3528         float pos[3];
3529         float sh1[4][3];
3530         float *vertex_color;
3531         unsigned char *lm_bgr;
3532         unsigned char *lm_dir;
3533 }
3534 lightmapsample_t;
3535
3536 typedef struct lightmapvertex_s
3537 {
3538         int index;
3539         float pos[3];
3540         float normal[3];
3541         float texcoordbase[2];
3542         float texcoordlightmap[2];
3543         float lightcolor[4];
3544 }
3545 lightmapvertex_t;
3546
3547 typedef struct lightmaptriangle_s
3548 {
3549         int triangleindex;
3550         int surfaceindex;
3551         int lightmapindex;
3552         int axis;
3553         int lmoffset[2];
3554         int lmsize[2];
3555         // 2D modelspace coordinates of min corner
3556         // snapped to lightmap grid but not in grid coordinates
3557         float lmbase[2];
3558         // 2D modelspace to lightmap coordinate scale
3559         float lmscale[2];
3560         float vertex[3][3];
3561         float mins[3];
3562         float maxs[3];
3563 }
3564 lightmaptriangle_t;
3565
3566 typedef struct lightmaplight_s
3567 {
3568         float origin[3];
3569         float radius;
3570         float iradius;
3571         float radius2;
3572         float color[3];
3573         svbsp_t svbsp;
3574 }
3575 lightmaplight_t;
3576
3577 lightmaptriangle_t *mod_generatelightmaps_lightmaptriangles;
3578
3579 #define MAX_LIGHTMAPSAMPLES 64
3580 static int mod_generatelightmaps_numoffsets[3];
3581 static float mod_generatelightmaps_offsets[3][MAX_LIGHTMAPSAMPLES][3];
3582
3583 static int mod_generatelightmaps_numlights;
3584 static lightmaplight_t *mod_generatelightmaps_lightinfo;
3585
3586 extern cvar_t r_shadow_lightattenuationdividebias;
3587 extern cvar_t r_shadow_lightattenuationlinearscale;
3588
3589 static void Mod_GenerateLightmaps_LightPoint(dp_model_t *model, const vec3_t pos, vec3_t ambient, vec3_t diffuse, vec3_t lightdir)
3590 {
3591         int i;
3592         int index;
3593         int result;
3594         float relativepoint[3];
3595         float color[3];
3596         float dir[3];
3597         float dist;
3598         float dist2;
3599         float intensity;
3600         float sample[5*3];
3601         float lightorigin[3];
3602         float lightradius;
3603         float lightradius2;
3604         float lightiradius;
3605         float lightcolor[3];
3606         trace_t trace;
3607         for (i = 0;i < 5*3;i++)
3608                 sample[i] = 0.0f;
3609         for (index = 0;;index++)
3610         {
3611                 result = R_Shadow_GetRTLightInfo(index, lightorigin, &lightradius, lightcolor);
3612                 if (result < 0)
3613                         break;
3614                 if (result == 0)
3615                         continue;
3616                 lightradius2 = lightradius * lightradius;
3617                 VectorSubtract(lightorigin, pos, relativepoint);
3618                 dist2 = VectorLength2(relativepoint);
3619                 if (dist2 >= lightradius2)
3620                         continue;
3621                 lightiradius = 1.0f / lightradius;
3622                 dist = sqrt(dist2) * lightiradius;
3623                 intensity = (1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist);
3624                 if (intensity <= 0.0f)
3625                         continue;
3626                 if (model && model->TraceLine)
3627                 {
3628                         model->TraceLine(model, NULL, NULL, &trace, pos, lightorigin, SUPERCONTENTS_VISBLOCKERMASK);
3629                         if (trace.fraction < 1)
3630                                 continue;
3631                 }
3632                 // scale down intensity to add to both ambient and diffuse
3633                 //intensity *= 0.5f;
3634                 VectorNormalize(relativepoint);
3635                 VectorScale(lightcolor, intensity, color);
3636                 VectorMA(sample    , 0.5f            , color, sample    );
3637                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3638                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3639                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3640                 // calculate a weighted average light direction as well
3641                 intensity *= VectorLength(color);
3642                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3643         }
3644         // calculate the direction we'll use to reduce the sample to a directional light source
3645         VectorCopy(sample + 12, dir);
3646         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3647         VectorNormalize(dir);
3648         // extract the diffuse color along the chosen direction and scale it
3649         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]);
3650         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]);
3651         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]);
3652         // subtract some of diffuse from ambient
3653         VectorMA(sample, -0.333f, diffuse, ambient);
3654         // store the normalized lightdir
3655         VectorCopy(dir, lightdir);
3656 }
3657
3658 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(const dp_model_t *model, svbsp_t *svbsp, const float *mins, const float *maxs)
3659 {
3660         int surfaceindex;
3661         int triangleindex;
3662         const msurface_t *surface;
3663         const float *vertex3f = model->surfmesh.data_vertex3f;
3664         const int *element3i = model->surfmesh.data_element3i;
3665         const int *e;
3666         float v2[3][3];
3667         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->nummodelsurfaces;surfaceindex++, surface++)
3668         {
3669                 if (!BoxesOverlap(surface->mins, surface->maxs, mins, maxs))
3670                         continue;
3671                 if (surface->texture->basematerialflags & MATERIALFLAG_NOSHADOW)
3672                         continue;
3673                 for (triangleindex = 0, e = element3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3674                 {
3675                         VectorCopy(vertex3f + 3*e[0], v2[0]);
3676                         VectorCopy(vertex3f + 3*e[1], v2[1]);
3677                         VectorCopy(vertex3f + 3*e[2], v2[2]);
3678                         SVBSP_AddPolygon(svbsp, 3, v2[0], true, NULL, NULL, 0);
3679                 }
3680         }
3681 }
3682
3683 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(dp_model_t *model, lightmaplight_t *lightinfo)
3684 {
3685         int maxnodes = 1<<14;
3686         svbsp_node_t *nodes;
3687         float origin[3];
3688         float mins[3];
3689         float maxs[3];
3690         svbsp_t svbsp;
3691         VectorSet(mins, lightinfo->origin[0] - lightinfo->radius, lightinfo->origin[1] - lightinfo->radius, lightinfo->origin[2] - lightinfo->radius);
3692         VectorSet(maxs, lightinfo->origin[0] + lightinfo->radius, lightinfo->origin[1] + lightinfo->radius, lightinfo->origin[2] + lightinfo->radius);
3693         VectorCopy(lightinfo->origin, origin);
3694         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3695         for (;;)
3696         {
3697                 SVBSP_Init(&svbsp, origin, maxnodes, nodes);
3698                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(model, &svbsp, mins, maxs);
3699                 if (svbsp.ranoutofnodes)
3700                 {
3701                         maxnodes *= 16;
3702                         if (maxnodes > 1<<22)
3703                         {
3704                                 Mem_Free(nodes);
3705                                 return;
3706                         }
3707                         Mem_Free(nodes);
3708                         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3709                 }
3710                 else
3711                         break;
3712         }
3713         if (svbsp.numnodes > 0)
3714         {
3715                 svbsp.nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, svbsp.numnodes * sizeof(*nodes));
3716                 memcpy(svbsp.nodes, nodes, svbsp.numnodes * sizeof(*nodes));
3717                 lightinfo->svbsp = svbsp;
3718         }
3719         Mem_Free(nodes);
3720 }
3721
3722 static void Mod_GenerateLightmaps_CreateLights(dp_model_t *model)
3723 {
3724         int index;
3725         int result;
3726         lightmaplight_t *lightinfo;
3727         float origin[3];
3728         float radius;
3729         float color[3];
3730         mod_generatelightmaps_numlights = 0;
3731         for (index = 0;;index++)
3732         {
3733                 result = R_Shadow_GetRTLightInfo(index, origin, &radius, color);
3734                 if (result < 0)
3735                         break;
3736                 if (result > 0)
3737                         mod_generatelightmaps_numlights++;
3738         }
3739         if (mod_generatelightmaps_numlights > 0)
3740         {
3741                 mod_generatelightmaps_lightinfo = (lightmaplight_t *)Mem_Alloc(tempmempool, mod_generatelightmaps_numlights * sizeof(*mod_generatelightmaps_lightinfo));
3742                 lightinfo = mod_generatelightmaps_lightinfo;
3743                 for (index = 0;;index++)
3744                 {
3745                         result = R_Shadow_GetRTLightInfo(index, lightinfo->origin, &lightinfo->radius, lightinfo->color);
3746                         if (result < 0)
3747                                 break;
3748                         if (result > 0)
3749                                 lightinfo++;
3750                 }
3751         }
3752         for (index = 0, lightinfo = mod_generatelightmaps_lightinfo;index < mod_generatelightmaps_numlights;index++, lightinfo++)
3753         {
3754                 lightinfo->iradius = 1.0f / lightinfo->radius;
3755                 lightinfo->radius2 = lightinfo->radius * lightinfo->radius;
3756                 // TODO: compute svbsp
3757                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(model, lightinfo);
3758         }
3759 }
3760
3761 static void Mod_GenerateLightmaps_DestroyLights(dp_model_t *model)
3762 {
3763         int i;
3764         if (mod_generatelightmaps_lightinfo)
3765         {
3766                 for (i = 0;i < mod_generatelightmaps_numlights;i++)
3767                         if (mod_generatelightmaps_lightinfo[i].svbsp.nodes)
3768                                 Mem_Free(mod_generatelightmaps_lightinfo[i].svbsp.nodes);
3769                 Mem_Free(mod_generatelightmaps_lightinfo);
3770         }
3771         mod_generatelightmaps_lightinfo = NULL;
3772         mod_generatelightmaps_numlights = 0;
3773 }
3774
3775 static qboolean Mod_GenerateLightmaps_SamplePoint_SVBSP(const svbsp_t *svbsp, const float *pos)
3776 {
3777         const svbsp_node_t *node;
3778         const svbsp_node_t *nodes = svbsp->nodes;
3779         int num = 0;
3780         while (num >= 0)
3781         {
3782                 node = nodes + num;
3783                 num = node->children[DotProduct(node->plane, pos) < node->plane[3]];
3784         }
3785         return num == -1; // true if empty, false if solid (shadowed)
3786 }
3787
3788 static void Mod_GenerateLightmaps_SamplePoint(const float *pos, const float *normal, float *sample, int numoffsets, const float *offsets)
3789 {
3790         int i;
3791         float relativepoint[3];
3792         float color[3];
3793         float offsetpos[3];
3794         float dist;
3795         float dist2;
3796         float intensity;
3797         int offsetindex;
3798         int hits;
3799         int tests;
3800         const lightmaplight_t *lightinfo;
3801         trace_t trace;
3802         for (i = 0;i < 5*3;i++)
3803                 sample[i] = 0.0f;
3804         for (i = 0, lightinfo = mod_generatelightmaps_lightinfo;i < mod_generatelightmaps_numlights;i++, lightinfo++)
3805         {
3806                 //R_SampleRTLights(pos, sample, numoffsets, offsets);
3807                 VectorSubtract(lightinfo->origin, pos, relativepoint);
3808                 // don't accept light from behind a surface, it causes bad shading
3809                 if (normal && DotProduct(relativepoint, normal) <= 0)
3810                         continue;
3811                 dist2 = VectorLength2(relativepoint);
3812                 if (dist2 >= lightinfo->radius2)
3813                         continue;
3814                 dist = sqrt(dist2) * lightinfo->iradius;
3815                 intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
3816                 if (intensity <= 0)
3817                         continue;
3818                 if (cl.worldmodel && cl.worldmodel->TraceLine && numoffsets > 0)
3819                 {
3820                         hits = 0;
3821                         tests = 1;
3822                         if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, pos))
3823                                 hits++;
3824                         for (offsetindex = 1;offsetindex < numoffsets;offsetindex++)
3825                         {
3826                                 VectorAdd(pos, offsets + 3*offsetindex, offsetpos);
3827                                 if (!normal)
3828                                 {
3829                                         // for light grid we'd better check visibility of the offset point
3830                                         cl.worldmodel->TraceLine(cl.worldmodel, NULL, NULL, &trace, pos, offsetpos, SUPERCONTENTS_VISBLOCKERMASK);
3831                                         if (trace.fraction < 1)
3832                                                 VectorLerp(pos, trace.fraction, offsetpos, offsetpos);
3833                                 }
3834                                 tests++;
3835                                 if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, offsetpos))
3836                                         hits++;
3837                         }
3838                         if (!hits)
3839                                 continue;
3840                         // scale intensity according to how many rays succeeded
3841                         // we know one test is valid, half of the rest will fail...
3842                         //if (normal && tests > 1)
3843                         //      intensity *= (tests - 1.0f) / tests;
3844                         intensity *= (float)hits / tests;
3845                 }
3846                 // scale down intensity to add to both ambient and diffuse
3847                 //intensity *= 0.5f;
3848                 VectorNormalize(relativepoint);
3849                 VectorScale(lightinfo->color, intensity, color);
3850                 VectorMA(sample    , 0.5f            , color, sample    );
3851                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3852                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3853                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3854                 // calculate a weighted average light direction as well
3855                 intensity *= VectorLength(color);
3856                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3857         }
3858 }
3859
3860 static void Mod_GenerateLightmaps_LightmapSample(const float *pos, const float *normal, unsigned char *lm_bgr, unsigned char *lm_dir)
3861 {
3862         float sample[5*3];
3863         float color[3];
3864         float dir[3];
3865         float f;
3866         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[0], mod_generatelightmaps_offsets[0][0]);
3867         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3868         VectorCopy(sample + 12, dir);
3869         VectorNormalize(dir);
3870         //VectorAdd(dir, normal, dir);
3871         //VectorNormalize(dir);
3872         f = DotProduct(dir, normal);
3873         f = max(0, f) * 255.0f;
3874         VectorScale(sample, f, color);
3875         //VectorCopy(normal, dir);
3876         VectorSet(dir, (dir[0]+1.0f)*127.5f, (dir[1]+1.0f)*127.5f, (dir[2]+1.0f)*127.5f);
3877         lm_bgr[0] = (unsigned char)bound(0.0f, color[2], 255.0f);
3878         lm_bgr[1] = (unsigned char)bound(0.0f, color[1], 255.0f);
3879         lm_bgr[2] = (unsigned char)bound(0.0f, color[0], 255.0f);
3880         lm_bgr[3] = 255;
3881         lm_dir[0] = (unsigned char)dir[2];
3882         lm_dir[1] = (unsigned char)dir[1];
3883         lm_dir[2] = (unsigned char)dir[0];
3884         lm_dir[3] = 255;
3885 }
3886
3887 static void Mod_GenerateLightmaps_VertexSample(const float *pos, const float *normal, float *vertex_color)
3888 {
3889         float sample[5*3];
3890         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[1], mod_generatelightmaps_offsets[1][0]);
3891         VectorCopy(sample, vertex_color);
3892 }
3893
3894 static void Mod_GenerateLightmaps_GridSample(const float *pos, q3dlightgrid_t *s)
3895 {
3896         float sample[5*3];
3897         float ambient[3];
3898         float diffuse[3];
3899         float dir[3];
3900         Mod_GenerateLightmaps_SamplePoint(pos, NULL, sample, mod_generatelightmaps_numoffsets[2], mod_generatelightmaps_offsets[2][0]);
3901         // calculate the direction we'll use to reduce the sample to a directional light source
3902         VectorCopy(sample + 12, dir);
3903         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3904         VectorNormalize(dir);
3905         // extract the diffuse color along the chosen direction and scale it
3906         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]) * 127.5f;
3907         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]) * 127.5f;
3908         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]) * 127.5f;
3909         // scale the ambient from 0-2 to 0-255 and subtract some of diffuse
3910         VectorScale(sample, 127.5f, ambient);
3911         VectorMA(ambient, -0.333f, diffuse, ambient);
3912         // encode to the grid format
3913         s->ambientrgb[0] = (unsigned char)bound(0.0f, ambient[0], 255.0f);
3914         s->ambientrgb[1] = (unsigned char)bound(0.0f, ambient[1], 255.0f);
3915         s->ambientrgb[2] = (unsigned char)bound(0.0f, ambient[2], 255.0f);
3916         s->diffusergb[0] = (unsigned char)bound(0.0f, diffuse[0], 255.0f);
3917         s->diffusergb[1] = (unsigned char)bound(0.0f, diffuse[1], 255.0f);
3918         s->diffusergb[2] = (unsigned char)bound(0.0f, diffuse[2], 255.0f);
3919         if (dir[2] >= 0.99f) {s->diffusepitch = 0;s->diffuseyaw = 0;}
3920         else if (dir[2] <= -0.99f) {s->diffusepitch = 128;s->diffuseyaw = 0;}
3921         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));}
3922 }
3923
3924 static void Mod_GenerateLightmaps_InitSampleOffsets(dp_model_t *model)
3925 {
3926         float radius[3];
3927         float temp[3];
3928         int i, j;
3929         memset(mod_generatelightmaps_offsets, 0, sizeof(mod_generatelightmaps_offsets));
3930         mod_generatelightmaps_numoffsets[0] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_lightmapsamples.integer);
3931         mod_generatelightmaps_numoffsets[1] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_vertexsamples.integer);
3932         mod_generatelightmaps_numoffsets[2] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_gridsamples.integer);
3933         radius[0] = mod_generatelightmaps_lightmapradius.value;
3934         radius[1] = mod_generatelightmaps_vertexradius.value;
3935         radius[2] = mod_generatelightmaps_gridradius.value;
3936         for (i = 0;i < 3;i++)
3937         {
3938                 for (j = 1;j < mod_generatelightmaps_numoffsets[i];j++)
3939                 {
3940                         VectorRandom(temp);
3941                         VectorScale(temp, radius[i], mod_generatelightmaps_offsets[i][j]);
3942                 }
3943         }
3944 }
3945
3946 static void Mod_GenerateLightmaps_DestroyLightmaps(dp_model_t *model)
3947 {
3948         msurface_t *surface;
3949         int surfaceindex;
3950         int i;
3951         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3952         {
3953                 surface = model->data_surfaces + surfaceindex;
3954                 surface->lightmaptexture = NULL;
3955                 surface->deluxemaptexture = NULL;
3956         }
3957         if (model->brushq3.data_lightmaps)
3958         {
3959                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3960                         if (model->brushq3.data_lightmaps[i])
3961                                 R_FreeTexture(model->brushq3.data_lightmaps[i]);
3962                 Mem_Free(model->brushq3.data_lightmaps);
3963                 model->brushq3.data_lightmaps = NULL;
3964         }
3965         if (model->brushq3.data_deluxemaps)
3966         {
3967                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3968                         if (model->brushq3.data_deluxemaps[i])
3969                                 R_FreeTexture(model->brushq3.data_deluxemaps[i]);
3970                 Mem_Free(model->brushq3.data_deluxemaps);
3971                 model->brushq3.data_deluxemaps = NULL;
3972         }
3973 }
3974
3975 static void Mod_GenerateLightmaps_UnweldTriangles(dp_model_t *model)
3976 {
3977         msurface_t *surface;
3978         int surfaceindex;
3979         int vertexindex;
3980         int outvertexindex;
3981         int i;
3982         const int *e;
3983         surfmesh_t oldsurfmesh;
3984         size_t size;
3985         unsigned char *data;
3986         oldsurfmesh = model->surfmesh;
3987         model->surfmesh.num_triangles = oldsurfmesh.num_triangles;
3988         model->surfmesh.num_vertices = oldsurfmesh.num_triangles * 3;
3989         size = 0;
3990         size += model->surfmesh.num_vertices * sizeof(float[3]);
3991         size += model->surfmesh.num_vertices * sizeof(float[3]);
3992         size += model->surfmesh.num_vertices * sizeof(float[3]);
3993         size += model->surfmesh.num_vertices * sizeof(float[3]);
3994         size += model->surfmesh.num_vertices * sizeof(float[2]);
3995         size += model->surfmesh.num_vertices * sizeof(float[2]);
3996         size += model->surfmesh.num_vertices * sizeof(float[4]);
3997         data = (unsigned char *)Mem_Alloc(model->mempool, size);
3998         model->surfmesh.data_vertex3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
3999         model->surfmesh.data_normal3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4000         model->surfmesh.data_svector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4001         model->surfmesh.data_tvector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4002         model->surfmesh.data_texcoordtexture2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
4003         model->surfmesh.data_texcoordlightmap2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
4004         model->surfmesh.data_lightmapcolor4f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[4]);
4005         if (model->surfmesh.num_vertices > 65536)
4006                 model->surfmesh.data_element3s = NULL;
4007
4008         if (model->surfmesh.vertexmesh)
4009                 Mem_Free(model->surfmesh.vertexmesh);
4010         model->surfmesh.vertexmesh = NULL;
4011         if (model->surfmesh.vertex3fbuffer)
4012                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vertex3fbuffer);
4013         model->surfmesh.vertex3fbuffer = NULL;
4014         if (model->surfmesh.vertexmeshbuffer)
4015                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vertexmeshbuffer);
4016         model->surfmesh.vertexmeshbuffer = NULL;
4017         if (model->surfmesh.data_element3i_indexbuffer)
4018                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3i_indexbuffer);
4019         model->surfmesh.data_element3i_indexbuffer = NULL;
4020         if (model->surfmesh.data_element3s_indexbuffer)
4021                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3s_indexbuffer);
4022         model->surfmesh.data_element3s_indexbuffer = NULL;
4023         if (model->surfmesh.vbo_vertexbuffer)
4024                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vbo_vertexbuffer);
4025         model->surfmesh.vbo_vertexbuffer = 0;
4026
4027         // convert all triangles to unique vertex data
4028         outvertexindex = 0;
4029         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4030         {
4031                 surface = model->data_surfaces + surfaceindex;
4032                 surface->num_firstvertex = outvertexindex;
4033                 surface->num_vertices = surface->num_triangles*3;
4034                 e = oldsurfmesh.data_element3i + surface->num_firsttriangle*3;
4035                 for (i = 0;i < surface->num_triangles*3;i++)
4036                 {
4037                         vertexindex = e[i];
4038                         model->surfmesh.data_vertex3f[outvertexindex*3+0] = oldsurfmesh.data_vertex3f[vertexindex*3+0];
4039                         model->surfmesh.data_vertex3f[outvertexindex*3+1] = oldsurfmesh.data_vertex3f[vertexindex*3+1];
4040                         model->surfmesh.data_vertex3f[outvertexindex*3+2] = oldsurfmesh.data_vertex3f[vertexindex*3+2];
4041                         model->surfmesh.data_normal3f[outvertexindex*3+0] = oldsurfmesh.data_normal3f[vertexindex*3+0];
4042                         model->surfmesh.data_normal3f[outvertexindex*3+1] = oldsurfmesh.data_normal3f[vertexindex*3+1];
4043                         model->surfmesh.data_normal3f[outvertexindex*3+2] = oldsurfmesh.data_normal3f[vertexindex*3+2];
4044                         model->surfmesh.data_svector3f[outvertexindex*3+0] = oldsurfmesh.data_svector3f[vertexindex*3+0];
4045                         model->surfmesh.data_svector3f[outvertexindex*3+1] = oldsurfmesh.data_svector3f[vertexindex*3+1];
4046                         model->surfmesh.data_svector3f[outvertexindex*3+2] = oldsurfmesh.data_svector3f[vertexindex*3+2];
4047                         model->surfmesh.data_tvector3f[outvertexindex*3+0] = oldsurfmesh.data_tvector3f[vertexindex*3+0];
4048                         model->surfmesh.data_tvector3f[outvertexindex*3+1] = oldsurfmesh.data_tvector3f[vertexindex*3+1];
4049                         model->surfmesh.data_tvector3f[outvertexindex*3+2] = oldsurfmesh.data_tvector3f[vertexindex*3+2];
4050                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+0];
4051                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+1];
4052                         if (oldsurfmesh.data_texcoordlightmap2f)
4053                         {
4054                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+0];
4055                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+1];
4056                         }
4057                         if (oldsurfmesh.data_lightmapcolor4f)
4058                         {
4059                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+0] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+0];
4060                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+1] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+1];
4061                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+2] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+2];
4062                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+3] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+3];
4063                         }
4064                         else
4065                                 Vector4Set(model->surfmesh.data_lightmapcolor4f + 4*outvertexindex, 1, 1, 1, 1);
4066                         model->surfmesh.data_element3i[surface->num_firsttriangle*3+i] = outvertexindex;
4067                         outvertexindex++;
4068                 }
4069         }
4070         if (model->surfmesh.data_element3s)
4071                 for (i = 0;i < model->surfmesh.num_triangles*3;i++)
4072                         model->surfmesh.data_element3s[i] = model->surfmesh.data_element3i[i];
4073
4074         // find and update all submodels to use this new surfmesh data
4075         for (i = 0;i < model->brush.numsubmodels;i++)
4076                 model->brush.submodels[i]->surfmesh = model->surfmesh;
4077 }
4078
4079 static void Mod_GenerateLightmaps_CreateTriangleInformation(dp_model_t *model)
4080 {
4081         msurface_t *surface;
4082         int surfaceindex;
4083         int i;
4084         int axis;
4085         float normal[3];
4086         const int *e;
4087         lightmaptriangle_t *triangle;
4088         // generate lightmap triangle structs
4089         mod_generatelightmaps_lightmaptriangles = (lightmaptriangle_t *)Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4090         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4091         {
4092                 surface = model->data_surfaces + surfaceindex;
4093                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4094                 for (i = 0;i < surface->num_triangles;i++)
4095                 {
4096                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4097                         triangle->triangleindex = surface->num_firsttriangle+i;
4098                         triangle->surfaceindex = surfaceindex;
4099                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+0], triangle->vertex[0]);
4100                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+1], triangle->vertex[1]);
4101                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+2], triangle->vertex[2]);
4102                         // calculate bounds of triangle
4103                         triangle->mins[0] = min(triangle->vertex[0][0], min(triangle->vertex[1][0], triangle->vertex[2][0]));
4104                         triangle->mins[1] = min(triangle->vertex[0][1], min(triangle->vertex[1][1], triangle->vertex[2][1]));
4105                         triangle->mins[2] = min(triangle->vertex[0][2], min(triangle->vertex[1][2], triangle->vertex[2][2]));
4106                         triangle->maxs[0] = max(triangle->vertex[0][0], max(triangle->vertex[1][0], triangle->vertex[2][0]));
4107                         triangle->maxs[1] = max(triangle->vertex[0][1], max(triangle->vertex[1][1], triangle->vertex[2][1]));
4108                         triangle->maxs[2] = max(triangle->vertex[0][2], max(triangle->vertex[1][2], triangle->vertex[2][2]));
4109                         // pick an axial projection based on the triangle normal
4110                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], normal);
4111                         axis = 0;
4112                         if (fabs(normal[1]) > fabs(normal[axis]))
4113                                 axis = 1;
4114                         if (fabs(normal[2]) > fabs(normal[axis]))
4115                                 axis = 2;
4116                         triangle->axis = axis;
4117                 }
4118         }
4119 }
4120
4121 static void Mod_GenerateLightmaps_DestroyTriangleInformation(dp_model_t *model)
4122 {
4123         if (mod_generatelightmaps_lightmaptriangles)
4124                 Mem_Free(mod_generatelightmaps_lightmaptriangles);
4125         mod_generatelightmaps_lightmaptriangles = NULL;
4126 }
4127
4128 float lmaxis[3][3] = {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}};
4129
4130 static void Mod_GenerateLightmaps_CreateLightmaps(dp_model_t *model)
4131 {
4132         msurface_t *surface;
4133         int surfaceindex;
4134         int lightmapindex;
4135         int lightmapnumber;
4136         int i;
4137         int j;
4138         int k;
4139         int x;
4140         int y;
4141         int axis;
4142         int axis1;
4143         int axis2;
4144         int retry;
4145         int pixeloffset;
4146         float trianglenormal[3];
4147         float samplecenter[3];
4148         float samplenormal[3];
4149         float temp[3];
4150         float lmiscale[2];
4151         float slopex;
4152         float slopey;
4153         float slopebase;
4154         float lmscalepixels;
4155         float lmmins;
4156         float lmmaxs;
4157         float lm_basescalepixels;
4158         int lm_borderpixels;
4159         int lm_texturesize;
4160         //int lm_maxpixels;
4161         const int *e;
4162         lightmaptriangle_t *triangle;
4163         unsigned char *lightmappixels;
4164         unsigned char *deluxemappixels;
4165         mod_alloclightmap_state_t lmstate;
4166         char vabuf[1024];
4167
4168         // generate lightmap projection information for all triangles
4169         if (model->texturepool == NULL)
4170                 model->texturepool = R_AllocTexturePool();
4171         lm_basescalepixels = 1.0f / max(0.0001f, mod_generatelightmaps_unitspersample.value);
4172         lm_borderpixels = mod_generatelightmaps_borderpixels.integer;
4173         lm_texturesize = bound(lm_borderpixels*2+1, 64, (int)vid.maxtexturesize_2d);
4174         //lm_maxpixels = lm_texturesize-(lm_borderpixels*2+1);
4175         Mod_AllocLightmap_Init(&lmstate, lm_texturesize, lm_texturesize);
4176         lightmapnumber = 0;
4177         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4178         {
4179                 surface = model->data_surfaces + surfaceindex;
4180                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4181                 lmscalepixels = lm_basescalepixels;
4182                 for (retry = 0;retry < 30;retry++)
4183                 {
4184                         // after a couple failed attempts, degrade quality to make it fit
4185                         if (retry > 1)
4186                                 lmscalepixels *= 0.5f;
4187                         for (i = 0;i < surface->num_triangles;i++)
4188                         {
4189                                 triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4190                                 triangle->lightmapindex = lightmapnumber;
4191                                 // calculate lightmap bounds in 3D pixel coordinates, limit size,
4192                                 // pick two planar axes for projection
4193                                 // lightmap coordinates here are in pixels
4194                                 // lightmap projections are snapped to pixel grid explicitly, such
4195                                 // that two neighboring triangles sharing an edge and projection
4196                                 // axis will have identical sampl espacing along their shared edge
4197                                 k = 0;
4198                                 for (j = 0;j < 3;j++)
4199                                 {
4200                                         if (j == triangle->axis)
4201                                                 continue;
4202                                         lmmins = floor(triangle->mins[j]*lmscalepixels)-lm_borderpixels;
4203                                         lmmaxs = floor(triangle->maxs[j]*lmscalepixels)+lm_borderpixels;
4204                                         triangle->lmsize[k] = (int)(lmmaxs-lmmins);
4205                                         triangle->lmbase[k] = lmmins/lmscalepixels;
4206                                         triangle->lmscale[k] = lmscalepixels;
4207                                         k++;
4208                                 }
4209                                 if (!Mod_AllocLightmap_Block(&lmstate, triangle->lmsize[0], triangle->lmsize[1], &triangle->lmoffset[0], &triangle->lmoffset[1]))
4210                                         break;
4211                         }
4212                         // if all fit in this texture, we're done with this surface
4213                         if (i == surface->num_triangles)
4214                                 break;
4215                         // if we haven't maxed out the lightmap size yet, we retry the
4216                         // entire surface batch...
4217                         if (lm_texturesize * 2 <= min(mod_generatelightmaps_texturesize.integer, (int)vid.maxtexturesize_2d))
4218                         {
4219                                 lm_texturesize *= 2;
4220                                 surfaceindex = -1;
4221                                 lightmapnumber = 0;
4222                                 Mod_AllocLightmap_Free(&lmstate);
4223                                 Mod_AllocLightmap_Init(&lmstate, lm_texturesize, lm_texturesize);
4224                                 break;
4225                         }
4226                         // if we have maxed out the lightmap size, and this triangle does
4227                         // not fit in the same texture as the rest of the surface, we have
4228                         // to retry the entire surface in a new texture (can only use one)
4229                         // with multiple retries, the lightmap quality degrades until it
4230                         // fits (or gives up)
4231                         if (surfaceindex > 0)
4232                                 lightmapnumber++;
4233                         Mod_AllocLightmap_Reset(&lmstate);
4234                 }
4235         }
4236         lightmapnumber++;
4237         Mod_AllocLightmap_Free(&lmstate);
4238
4239         // now put triangles together into lightmap textures, and do not allow
4240         // triangles of a surface to go into different textures (as that would
4241         // require rewriting the surface list)
4242         model->brushq3.deluxemapping_modelspace = true;
4243         model->brushq3.deluxemapping = true;
4244         model->brushq3.num_mergedlightmaps = lightmapnumber;
4245         model->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4246         model->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4247         lightmappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4248         deluxemappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4249         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4250         {
4251                 surface = model->data_surfaces + surfaceindex;
4252                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4253                 for (i = 0;i < surface->num_triangles;i++)
4254                 {
4255                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4256                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], trianglenormal);
4257                         VectorNormalize(trianglenormal);
4258                         VectorCopy(trianglenormal, samplenormal); // FIXME: this is supposed to be interpolated per pixel from vertices
4259                         axis = triangle->axis;
4260                         axis1 = axis == 0 ? 1 : 0;
4261                         axis2 = axis == 2 ? 1 : 2;
4262                         lmiscale[0] = 1.0f / triangle->lmscale[0];
4263                         lmiscale[1] = 1.0f / triangle->lmscale[1];
4264                         if (trianglenormal[axis] < 0)
4265                                 VectorNegate(trianglenormal, trianglenormal);
4266                         CrossProduct(lmaxis[axis2], trianglenormal, temp);slopex = temp[axis] / temp[axis1];
4267                         CrossProduct(lmaxis[axis1], trianglenormal, temp);slopey = temp[axis] / temp[axis2];
4268                         slopebase = triangle->vertex[0][axis] - triangle->vertex[0][axis1]*slopex - triangle->vertex[0][axis2]*slopey;
4269                         for (j = 0;j < 3;j++)
4270                         {
4271                                 float *t2f = model->surfmesh.data_texcoordlightmap2f + e[i*3+j]*2;
4272                                 t2f[0] = ((triangle->vertex[j][axis1] - triangle->lmbase[0]) * triangle->lmscale[0] + triangle->lmoffset[0]) / lm_texturesize;
4273                                 t2f[1] = ((triangle->vertex[j][axis2] - triangle->lmbase[1]) * triangle->lmscale[1] + triangle->lmoffset[1]) / lm_texturesize;
4274 #if 0
4275                                 samplecenter[axis1] = (t2f[0]*lm_texturesize-triangle->lmoffset[0])*lmiscale[0] + triangle->lmbase[0];
4276                                 samplecenter[axis2] = (t2f[1]*lm_texturesize-triangle->lmoffset[1])*lmiscale[1] + triangle->lmbase[1];
4277                                 samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4278                                 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]);
4279 #endif
4280                         }
4281
4282 #if 0
4283                         switch (axis)
4284                         {
4285                         default:
4286                         case 0:
4287                                 forward[0] = 0;
4288                                 forward[1] = 1.0f / triangle->lmscale[0];
4289                                 forward[2] = 0;
4290                                 left[0] = 0;
4291                                 left[1] = 0;
4292                                 left[2] = 1.0f / triangle->lmscale[1];
4293                                 up[0] = 1.0f;
4294                                 up[1] = 0;
4295                                 up[2] = 0;
4296                                 origin[0] = 0;
4297                                 origin[1] = triangle->lmbase[0];
4298                                 origin[2] = triangle->lmbase[1];
4299                                 break;
4300                         case 1:
4301                                 forward[0] = 1.0f / triangle->lmscale[0];
4302                                 forward[1] = 0;
4303                                 forward[2] = 0;
4304                                 left[0] = 0;
4305                                 left[1] = 0;
4306                                 left[2] = 1.0f / triangle->lmscale[1];
4307                                 up[0] = 0;
4308                                 up[1] = 1.0f;
4309                                 up[2] = 0;
4310                                 origin[0] = triangle->lmbase[0];
4311                                 origin[1] = 0;
4312                                 origin[2] = triangle->lmbase[1];
4313                                 break;
4314                         case 2:
4315                                 forward[0] = 1.0f / triangle->lmscale[0];
4316                                 forward[1] = 0;
4317                                 forward[2] = 0;
4318                                 left[0] = 0;
4319                                 left[1] = 1.0f / triangle->lmscale[1];
4320                                 left[2] = 0;
4321                                 up[0] = 0;
4322                                 up[1] = 0;
4323                                 up[2] = 1.0f;
4324                                 origin[0] = triangle->lmbase[0];
4325                                 origin[1] = triangle->lmbase[1];
4326                                 origin[2] = 0;
4327                                 break;
4328                         }
4329                         Matrix4x4_FromVectors(&backmatrix, forward, left, up, origin);
4330 #endif
4331 #define LM_DIST_EPSILON (1.0f / 32.0f)
4332                         for (y = 0;y < triangle->lmsize[1];y++)
4333                         {
4334                                 pixeloffset = ((triangle->lightmapindex * lm_texturesize + y + triangle->lmoffset[1]) * lm_texturesize + triangle->lmoffset[0]) * 4;
4335                                 for (x = 0;x < triangle->lmsize[0];x++, pixeloffset += 4)
4336                                 {
4337                                         samplecenter[axis1] = (x+0.5f)*lmiscale[0] + triangle->lmbase[0];
4338                                         samplecenter[axis2] = (y+0.5f)*lmiscale[1] + triangle->lmbase[1];
4339                                         samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4340                                         VectorMA(samplecenter, 0.125f, samplenormal, samplecenter);
4341                                         Mod_GenerateLightmaps_LightmapSample(samplecenter, samplenormal, lightmappixels + pixeloffset, deluxemappixels + pixeloffset);
4342                                 }
4343                         }
4344                 }
4345         }
4346
4347         for (lightmapindex = 0;lightmapindex < model->brushq3.num_mergedlightmaps;lightmapindex++)
4348         {
4349                 model->brushq3.data_lightmaps[lightmapindex] = R_LoadTexture2D(model->texturepool, va(vabuf, sizeof(vabuf), "lightmap%i", lightmapindex), lm_texturesize, lm_texturesize, lightmappixels + lightmapindex * lm_texturesize * lm_texturesize * 4, TEXTYPE_BGRA, TEXF_FORCELINEAR, -1, NULL);
4350                 model->brushq3.data_deluxemaps[lightmapindex] = R_LoadTexture2D(model->texturepool, va(vabuf, sizeof(vabuf), "deluxemap%i", lightmapindex), lm_texturesize, lm_texturesize, deluxemappixels + lightmapindex * lm_texturesize * lm_texturesize * 4, TEXTYPE_BGRA, TEXF_FORCELINEAR, -1, NULL);
4351         }
4352
4353         if (lightmappixels)
4354                 Mem_Free(lightmappixels);
4355         if (deluxemappixels)
4356                 Mem_Free(deluxemappixels);
4357
4358         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4359         {
4360                 surface = model->data_surfaces + surfaceindex;
4361                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4362                 if (!surface->num_triangles)
4363                         continue;
4364                 lightmapindex = mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle].lightmapindex;
4365                 surface->lightmaptexture = model->brushq3.data_lightmaps[lightmapindex];
4366                 surface->deluxemaptexture = model->brushq3.data_deluxemaps[lightmapindex];
4367                 surface->lightmapinfo = NULL;
4368         }
4369
4370         model->brush.LightPoint = Mod_GenerateLightmaps_LightPoint;
4371         model->brushq1.lightdata = NULL;
4372         model->brushq1.lightmapupdateflags = NULL;
4373         model->brushq1.firstrender = false;
4374         model->brushq1.num_lightstyles = 0;
4375         model->brushq1.data_lightstyleinfo = NULL;
4376         for (i = 0;i < model->brush.numsubmodels;i++)
4377         {
4378                 model->brush.submodels[i]->brushq1.lightmapupdateflags = NULL;
4379                 model->brush.submodels[i]->brushq1.firstrender = false;
4380                 model->brush.submodels[i]->brushq1.num_lightstyles = 0;
4381                 model->brush.submodels[i]->brushq1.data_lightstyleinfo = NULL;
4382         }
4383 }
4384
4385 static void Mod_GenerateLightmaps_UpdateVertexColors(dp_model_t *model)
4386 {
4387         int i;
4388         for (i = 0;i < model->surfmesh.num_vertices;i++)
4389                 Mod_GenerateLightmaps_VertexSample(model->surfmesh.data_vertex3f + 3*i, model->surfmesh.data_normal3f + 3*i, model->surfmesh.data_lightmapcolor4f + 4*i);
4390 }
4391
4392 static void Mod_GenerateLightmaps_UpdateLightGrid(dp_model_t *model)
4393 {
4394         int x;
4395         int y;
4396         int z;
4397         int index = 0;
4398         float pos[3];
4399         for (z = 0;z < model->brushq3.num_lightgrid_isize[2];z++)
4400         {
4401                 pos[2] = (model->brushq3.num_lightgrid_imins[2] + z + 0.5f) * model->brushq3.num_lightgrid_cellsize[2];
4402                 for (y = 0;y < model->brushq3.num_lightgrid_isize[1];y++)
4403                 {
4404                         pos[1] = (model->brushq3.num_lightgrid_imins[1] + y + 0.5f) * model->brushq3.num_lightgrid_cellsize[1];
4405                         for (x = 0;x < model->brushq3.num_lightgrid_isize[0];x++, index++)
4406                         {
4407                                 pos[0] = (model->brushq3.num_lightgrid_imins[0] + x + 0.5f) * model->brushq3.num_lightgrid_cellsize[0];
4408                                 Mod_GenerateLightmaps_GridSample(pos, model->brushq3.data_lightgrid + index);
4409                         }
4410                 }
4411         }
4412 }
4413
4414 extern cvar_t mod_q3bsp_nolightmaps;
4415 static void Mod_GenerateLightmaps(dp_model_t *model)
4416 {
4417         //lightmaptriangle_t *lightmaptriangles = Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4418         dp_model_t *oldloadmodel = loadmodel;
4419         loadmodel = model;
4420
4421         Mod_GenerateLightmaps_InitSampleOffsets(model);
4422         Mod_GenerateLightmaps_DestroyLightmaps(model);
4423         Mod_GenerateLightmaps_UnweldTriangles(model);
4424         Mod_GenerateLightmaps_CreateTriangleInformation(model);
4425         Mod_GenerateLightmaps_CreateLights(model);
4426         if(!mod_q3bsp_nolightmaps.integer)
4427                 Mod_GenerateLightmaps_CreateLightmaps(model);
4428         Mod_GenerateLightmaps_UpdateVertexColors(model);
4429         Mod_GenerateLightmaps_UpdateLightGrid(model);
4430         Mod_GenerateLightmaps_DestroyLights(model);
4431         Mod_GenerateLightmaps_DestroyTriangleInformation(model);
4432
4433         loadmodel = oldloadmodel;
4434 }
4435
4436 static void Mod_GenerateLightmaps_f(void)
4437 {
4438         if (Cmd_Argc() != 1)
4439         {
4440                 Con_Printf("usage: mod_generatelightmaps\n");
4441                 return;
4442         }
4443         if (!cl.worldmodel)
4444         {
4445                 Con_Printf("no worldmodel loaded\n");
4446                 return;
4447         }
4448         Mod_GenerateLightmaps(cl.worldmodel);
4449 }