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 = (int)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 = (int)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 = (int)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.data_element3i_indexbuffer)
 204                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3i_indexbuffer);
 205                 mod->surfmesh.data_element3i_indexbuffer = NULL;
 206                 if (mod->surfmesh.data_element3s_indexbuffer)
 207                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.data_element3s_indexbuffer);
 208                 mod->surfmesh.data_element3s_indexbuffer = NULL;
 209                 if (mod->surfmesh.vbo_vertexbuffer)
 210                         R_Mesh_DestroyMeshBuffer(mod->surfmesh.vbo_vertexbuffer);
 211                 mod->surfmesh.vbo_vertexbuffer = NULL;
 212         }
 213         // free textures/memory attached to the model
 214         R_FreeTexturePool(&mod->texturepool);
 215         Mem_FreePool(&mod->mempool);
 216         // clear the struct to make it available
 217         memset(mod, 0, sizeof(dp_model_t));
 218         // restore the fields we want to preserve
 219         strlcpy(mod->name, name, sizeof(mod->name));
 220         mod->brush.parentmodel = parentmodel;
 221         mod->used = used;
 222         mod->loaded = false;
 223 }
 224
 225 static void R_Model_Null_Draw(entity_render_t *ent)
 226 {
 227         return;
 228 }
 229
 230
 231 typedef void (*mod_framegroupify_parsegroups_t) (unsigned int i, int start, int len, float fps, qboolean loop, const char *name, void *pass);
 232
 233 static int Mod_FrameGroupify_ParseGroups(const char *buf, mod_framegroupify_parsegroups_t cb, void *pass)
 234 {
 235         const char *bufptr;
 236         int start, len;
 237         float fps;
 238         unsigned int i;
 239         qboolean loop;
 240         char name[64];
 241
 242         bufptr = buf;
 243         i = 0;
 244         while(bufptr)
 245         {
 246                 // an anim scene!
 247
 248                 // REQUIRED: fetch start
 249                 COM_ParseToken_Simple(&bufptr, true, false, true);
 250                 if (!bufptr)
 251                         break; // end of file
 252                 if (!strcmp(com_token, "\n"))
 253                         continue; // empty line
 254                 start = atoi(com_token);
 255
 256                 // REQUIRED: fetch length
 257                 COM_ParseToken_Simple(&bufptr, true, false, true);
 258                 if (!bufptr || !strcmp(com_token, "\n"))
 259                 {
 260                         Con_Printf("framegroups file: missing number of frames\n");
 261                         continue;
 262                 }
 263                 len = atoi(com_token);
 264
 265                 // OPTIONAL args start
 266                 COM_ParseToken_Simple(&bufptr, true, false, true);
 267
 268                 // OPTIONAL: fetch fps
 269                 fps = 20;
 270                 if (bufptr && strcmp(com_token, "\n"))
 271                 {
 272                         fps = atof(com_token);
 273                         COM_ParseToken_Simple(&bufptr, true, false, true);
 274                 }
 275
 276                 // OPTIONAL: fetch loopflag
 277                 loop = true;
 278                 if (bufptr && strcmp(com_token, "\n"))
 279                 {
 280                         loop = (atoi(com_token) != 0);
 281                         COM_ParseToken_Simple(&bufptr, true, false, true);
 282                 }
 283
 284                 // OPTIONAL: fetch name
 285                 name[0] = 0;
 286                 if (bufptr && strcmp(com_token, "\n"))
 287                 {
 288                         strlcpy(name, com_token, sizeof(name));
 289                         COM_ParseToken_Simple(&bufptr, true, false, true);
 290                 }
 291
 292                 // OPTIONAL: remaining unsupported tokens (eat them)
 293                 while (bufptr && strcmp(com_token, "\n"))
 294                         COM_ParseToken_Simple(&bufptr, true, false, true);
 295
 296                 //Con_Printf("data: %d %d %d %f %d (%s)\n", i, start, len, fps, loop, name);
 297
 298                 if(cb)
 299                         cb(i, start, len, fps, loop, (name[0] ? name : NULL), pass);
 300                 ++i;
 301         }
 302
 303         return i;
 304 }
 305
 306 static void Mod_FrameGroupify_ParseGroups_Store (unsigned int i, int start, int len, float fps, qboolean loop, const char *name, void *pass)
 307 {
 308         dp_model_t *mod = (dp_model_t *) pass;
 309         animscene_t *anim = &mod->animscenes[i];
 310         if(name)
 311                 strlcpy(anim->name, name, sizeof(anim[i].name));
 312         else
 313                 dpsnprintf(anim->name, sizeof(anim[i].name), "groupified_%d_anim", i);
 314         anim->firstframe = bound(0, start, mod->num_poses - 1);
 315         anim->framecount = bound(1, len, mod->num_poses - anim->firstframe);
 316         anim->framerate = max(1, fps);
 317         anim->loop = !!loop;
 318         //Con_Printf("frame group %d is %d %d %f %d\n", i, start, len, fps, loop);
 319 }
 320
 321 static void Mod_FrameGroupify(dp_model_t *mod, const char *buf)
 322 {
 323         unsigned int cnt;
 324
 325         // 0. count
 326         cnt = Mod_FrameGroupify_ParseGroups(buf, NULL, NULL);
 327         if(!cnt)
 328         {
 329                 Con_Printf("no scene found in framegroups file, aborting\n");
 330                 return;
 331         }
 332         mod->numframes = cnt;
 333
 334         // 1. reallocate
 335         // (we do not free the previous animscenes, but model unloading will free the pool owning them, so it's okay)
 336         mod->animscenes = (animscene_t *) Mem_Alloc(mod->mempool, sizeof(animscene_t) * mod->numframes);
 337
 338         // 2. parse
 339         Mod_FrameGroupify_ParseGroups(buf, Mod_FrameGroupify_ParseGroups_Store, mod);
 340 }
 341
 342 static void Mod_FindPotentialDeforms(dp_model_t *mod)
 343 {
 344         int i, j;
 345         texture_t *texture;
 346         mod->wantnormals = false;
 347         mod->wanttangents = false;
 348         for (i = 0;i < mod->num_textures;i++)
 349         {
 350                 texture = mod->data_textures + i;
 351                 if (texture->tcgen.tcgen == Q3TCGEN_ENVIRONMENT)
 352                         mod->wantnormals = true;
 353                 for (j = 0;j < Q3MAXDEFORMS;j++)
 354                 {
 355                         if (texture->deforms[j].deform == Q3DEFORM_AUTOSPRITE)
 356                         {
 357                                 mod->wanttangents = true;
 358                                 mod->wantnormals = true;
 359                                 break;
 360                         }
 361                         if (texture->deforms[j].deform != Q3DEFORM_NONE)
 362                                 mod->wantnormals = true;
 363                 }
 364         }
 365 }
 366
 367 /*
 368 ==================
 369 Mod_LoadModel
 370
 371 Loads a model
 372 ==================
 373 */
 374 dp_model_t *Mod_LoadModel(dp_model_t *mod, qboolean crash, qboolean checkdisk)
 375 {
 376         int num;
 377         unsigned int crc;
 378         void *buf;
 379         fs_offset_t filesize = 0;
 380         char vabuf[1024];
 381
 382         mod->used = true;
 383
 384         if (mod->name[0] == '*') // submodel
 385                 return mod;
 386
 387         if (!strcmp(mod->name, "null"))
 388         {
 389                 if(mod->loaded)
 390                         return mod;
 391
 392                 if (mod->loaded || mod->mempool)
 393                         Mod_UnloadModel(mod);
 394
 395                 if (developer_loading.integer)
 396                         Con_Printf("loading model %s\n", mod->name);
 397
 398                 mod->used = true;
 399                 mod->crc = (unsigned int)-1;
 400                 mod->loaded = false;
 401
 402                 VectorClear(mod->normalmins);
 403                 VectorClear(mod->normalmaxs);
 404                 VectorClear(mod->yawmins);
 405                 VectorClear(mod->yawmaxs);
 406                 VectorClear(mod->rotatedmins);
 407                 VectorClear(mod->rotatedmaxs);
 408
 409                 mod->modeldatatypestring = "null";
 410                 mod->type = mod_null;
 411                 mod->Draw = R_Model_Null_Draw;
 412                 mod->numframes = 2;
 413                 mod->numskins = 1;
 414
 415                 // no fatal errors occurred, so this model is ready to use.
 416                 mod->loaded = true;
 417
 418                 return mod;
 419         }
 420
 421         crc = 0;
 422         buf = NULL;
 423
 424         // even if the model is loaded it still may need reloading...
 425
 426         // if it is not loaded or checkdisk is true we need to calculate the crc
 427         if (!mod->loaded || checkdisk)
 428         {
 429                 if (checkdisk && mod->loaded)
 430                         Con_DPrintf("checking model %s\n", mod->name);
 431                 buf = FS_LoadFile (mod->name, tempmempool, false, &filesize);
 432                 if (buf)
 433                 {
 434                         crc = CRC_Block((unsigned char *)buf, filesize);
 435                         // we need to reload the model if the crc does not match
 436                         if (mod->crc != crc)
 437                                 mod->loaded = false;
 438                 }
 439         }
 440
 441         // if the model is already loaded and checks passed, just return
 442         if (mod->loaded)
 443         {
 444                 if (buf)
 445                         Mem_Free(buf);
 446                 return mod;
 447         }
 448
 449         if (developer_loading.integer)
 450                 Con_Printf("loading model %s\n", mod->name);
 451
 452         SCR_PushLoadingScreen(true, mod->name, 1);
 453
 454         // LordHavoc: unload the existing model in this slot (if there is one)
 455         if (mod->loaded || mod->mempool)
 456                 Mod_UnloadModel(mod);
 457
 458         // load the model
 459         mod->used = true;
 460         mod->crc = crc;
 461         // errors can prevent the corresponding mod->loaded = true;
 462         mod->loaded = false;
 463
 464         // default lightmap scale
 465         mod->lightmapscale = 1;
 466
 467         // default model radius and bounding box (mainly for missing models)
 468         mod->radius = 16;
 469         VectorSet(mod->normalmins, -mod->radius, -mod->radius, -mod->radius);
 470         VectorSet(mod->normalmaxs, mod->radius, mod->radius, mod->radius);
 471         VectorSet(mod->yawmins, -mod->radius, -mod->radius, -mod->radius);
 472         VectorSet(mod->yawmaxs, mod->radius, mod->radius, mod->radius);
 473         VectorSet(mod->rotatedmins, -mod->radius, -mod->radius, -mod->radius);
 474         VectorSet(mod->rotatedmaxs, mod->radius, mod->radius, mod->radius);
 475
 476         if (!q3shaders_mem)
 477         {
 478                 // load q3 shaders for the first time, or after a level change
 479                 Mod_LoadQ3Shaders();
 480         }
 481
 482         if (buf)
 483         {
 484                 char *bufend = (char *)buf + filesize;
 485
 486                 // all models use memory, so allocate a memory pool
 487                 mod->mempool = Mem_AllocPool(mod->name, 0, NULL);
 488
 489                 num = LittleLong(*((int *)buf));
 490                 // call the apropriate loader
 491                 loadmodel = mod;
 492                 if (!strcasecmp(FS_FileExtension(mod->name), "obj")) Mod_OBJ_Load(mod, buf, bufend);
 493                 else if (!memcmp(buf, "IDPO", 4)) Mod_IDP0_Load(mod, buf, bufend);
 494                 else if (!memcmp(buf, "IDP2", 4)) Mod_IDP2_Load(mod, buf, bufend);
 495                 else if (!memcmp(buf, "IDP3", 4)) Mod_IDP3_Load(mod, buf, bufend);
 496                 else if (!memcmp(buf, "IDSP", 4)) Mod_IDSP_Load(mod, buf, bufend);
 497                 else if (!memcmp(buf, "IDS2", 4)) Mod_IDS2_Load(mod, buf, bufend);
 498                 else if (!memcmp(buf, "IBSP", 4)) Mod_IBSP_Load(mod, buf, bufend);
 499                 else if (!memcmp(buf, "ZYMOTICMODEL", 12)) Mod_ZYMOTICMODEL_Load(mod, buf, bufend);
 500                 else if (!memcmp(buf, "DARKPLACESMODEL", 16)) Mod_DARKPLACESMODEL_Load(mod, buf, bufend);
 501                 else if (!memcmp(buf, "ACTRHEAD", 8)) Mod_PSKMODEL_Load(mod, buf, bufend);
 502                 else if (!memcmp(buf, "INTERQUAKEMODEL", 16)) Mod_INTERQUAKEMODEL_Load(mod, buf, bufend);
 503                 else if (strlen(mod->name) >= 4 && !strcmp(mod->name + strlen(mod->name) - 4, ".map")) Mod_MAP_Load(mod, buf, bufend);
 504                 else if (num == BSPVERSION || num == 30 || !memcmp(buf, "BSP2", 4) || !memcmp(buf, "2PSB", 4)) Mod_Q1BSP_Load(mod, buf, bufend);
 505                 else Con_Printf("Mod_LoadModel: model \"%s\" is of unknown/unsupported type\n", mod->name);
 506                 Mem_Free(buf);
 507
 508                 Mod_FindPotentialDeforms(mod);
 509
 510                 buf = FS_LoadFile(va(vabuf, sizeof(vabuf), "%s.framegroups", mod->name), tempmempool, false, &filesize);
 511                 if(buf)
 512                 {
 513                         Mod_FrameGroupify(mod, (const char *)buf);
 514                         Mem_Free(buf);
 515                 }
 516
 517                 Mod_BuildVBOs();
 518         }
 519         else if (crash)
 520         {
 521                 // LordHavoc: Sys_Error was *ANNOYING*
 522                 Con_Printf ("Mod_LoadModel: %s not found\n", mod->name);
 523         }
 524
 525         // no fatal errors occurred, so this model is ready to use.
 526         mod->loaded = true;
 527
 528         SCR_PopLoadingScreen(false);
 529
 530         return mod;
 531 }
 532
 533 void Mod_ClearUsed(void)
 534 {
 535         int i;
 536         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 537         dp_model_t *mod;
 538         for (i = 0;i < nummodels;i++)
 539                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0])
 540                         mod->used = false;
 541 }
 542
 543 void Mod_PurgeUnused(void)
 544 {
 545         int i;
 546         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 547         dp_model_t *mod;
 548         for (i = 0;i < nummodels;i++)
 549         {
 550                 if ((mod = (dp_model_t*) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && !mod->used)
 551                 {
 552                         Mod_UnloadModel(mod);
 553                         Mem_ExpandableArray_FreeRecord(&models, mod);
 554                 }
 555         }
 556 }
 557
 558 /*
 559 ==================
 560 Mod_FindName
 561
 562 ==================
 563 */
 564 dp_model_t *Mod_FindName(const char *name, const char *parentname)
 565 {
 566         int i;
 567         int nummodels;
 568         dp_model_t *mod;
 569
 570         if (!parentname)
 571                 parentname = "";
 572
 573         // if we're not dedicatd, the renderer calls will crash without video
 574         Host_StartVideo();
 575
 576         nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 577
 578         if (!name[0])
 579                 Host_Error ("Mod_ForName: empty name");
 580
 581         // search the currently loaded models
 582         for (i = 0;i < nummodels;i++)
 583         {
 584                 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))))
 585                 {
 586                         mod->used = true;
 587                         return mod;
 588                 }
 589         }
 590
 591         // no match found, create a new one
 592         mod = (dp_model_t *) Mem_ExpandableArray_AllocRecord(&models);
 593         strlcpy(mod->name, name, sizeof(mod->name));
 594         if (parentname[0])
 595                 mod->brush.parentmodel = Mod_FindName(parentname, NULL);
 596         else
 597                 mod->brush.parentmodel = NULL;
 598         mod->loaded = false;
 599         mod->used = true;
 600         return mod;
 601 }
 602
 603 /*
 604 ==================
 605 Mod_ForName
 606
 607 Loads in a model for the given name
 608 ==================
 609 */
 610 dp_model_t *Mod_ForName(const char *name, qboolean crash, qboolean checkdisk, const char *parentname)
 611 {
 612         dp_model_t *model;
 613         model = Mod_FindName(name, parentname);
 614         if (!model->loaded || checkdisk)
 615                 Mod_LoadModel(model, crash, checkdisk);
 616         return model;
 617 }
 618
 619 /*
 620 ==================
 621 Mod_Reload
 622
 623 Reloads all models if they have changed
 624 ==================
 625 */
 626 void Mod_Reload(void)
 627 {
 628         int i, count;
 629         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 630         dp_model_t *mod;
 631
 632         SCR_PushLoadingScreen(false, "Reloading models", 1.0);
 633         count = 0;
 634         for (i = 0;i < nummodels;i++)
 635                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 636                         ++count;
 637         for (i = 0;i < nummodels;i++)
 638                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*' && mod->used)
 639                 {
 640                         SCR_PushLoadingScreen(true, mod->name, 1.0 / count);
 641                         Mod_LoadModel(mod, true, true);
 642                         SCR_PopLoadingScreen(false);
 643                 }
 644         SCR_PopLoadingScreen(false);
 645 }
 646
 647 unsigned char *mod_base;
 648
 649
 650 //=============================================================================
 651
 652 /*
 653 ================
 654 Mod_Print
 655 ================
 656 */
 657 static void Mod_Print(void)
 658 {
 659         int i;
 660         int nummodels = (int)Mem_ExpandableArray_IndexRange(&models);
 661         dp_model_t *mod;
 662
 663         Con_Print("Loaded models:\n");
 664         for (i = 0;i < nummodels;i++)
 665         {
 666                 if ((mod = (dp_model_t *) Mem_ExpandableArray_RecordAtIndex(&models, i)) && mod->name[0] && mod->name[0] != '*')
 667                 {
 668                         if (mod->brush.numsubmodels)
 669                                 Con_Printf("%4iK %s (%i submodels)\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name, mod->brush.numsubmodels);
 670                         else
 671                                 Con_Printf("%4iK %s\n", mod->mempool ? (int)((mod->mempool->totalsize + 1023) / 1024) : 0, mod->name);
 672                 }
 673         }
 674 }
 675
 676 /*
 677 ================
 678 Mod_Precache
 679 ================
 680 */
 681 static void Mod_Precache(void)
 682 {
 683         if (Cmd_Argc() == 2)
 684                 Mod_ForName(Cmd_Argv(1), false, true, Cmd_Argv(1)[0] == '*' ? cl.model_name[1] : NULL);
 685         else
 686                 Con_Print("usage: modelprecache <filename>\n");
 687 }
 688
 689 int Mod_BuildVertexRemapTableFromElements(int numelements, const int *elements, int numvertices, int *remapvertices)
 690 {
 691         int i, count;
 692         unsigned char *used;
 693         used = (unsigned char *)Mem_Alloc(tempmempool, numvertices);
 694         memset(used, 0, numvertices);
 695         for (i = 0;i < numelements;i++)
 696                 used[elements[i]] = 1;
 697         for (i = 0, count = 0;i < numvertices;i++)
 698                 remapvertices[i] = used[i] ? count++ : -1;
 699         Mem_Free(used);
 700         return count;
 701 }
 702
 703 #if 1
 704 // fast way, using an edge hash
 705 #define TRIANGLEEDGEHASH 8192
 706 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 707 {
 708         int i, j, p, e1, e2, *n, hashindex, count, match;
 709         const int *e;
 710         typedef struct edgehashentry_s
 711         {
 712                 struct edgehashentry_s *next;
 713                 int triangle;
 714                 int element[2];
 715         }
 716         edgehashentry_t;
 717         static edgehashentry_t **edgehash;
 718         edgehashentry_t *edgehashentries, *hash;
 719         if (!numtriangles)
 720                 return;
 721         edgehash = (edgehashentry_t **)Mem_Alloc(tempmempool, TRIANGLEEDGEHASH * sizeof(*edgehash));
 722         // if there are too many triangles for the stack array, allocate larger buffer
 723         edgehashentries = (edgehashentry_t *)Mem_Alloc(tempmempool, numtriangles * 3 * sizeof(edgehashentry_t));
 724         // find neighboring triangles
 725         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 726         {
 727                 for (j = 0, p = 2;j < 3;p = j, j++)
 728                 {
 729                         e1 = e[p];
 730                         e2 = e[j];
 731                         // this hash index works for both forward and backward edges
 732                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 733                         hash = edgehashentries + i * 3 + j;
 734                         hash->next = edgehash[hashindex];
 735                         edgehash[hashindex] = hash;
 736                         hash->triangle = i;
 737                         hash->element[0] = e1;
 738                         hash->element[1] = e2;
 739                 }
 740         }
 741         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 742         {
 743                 for (j = 0, p = 2;j < 3;p = j, j++)
 744                 {
 745                         e1 = e[p];
 746                         e2 = e[j];
 747                         // this hash index works for both forward and backward edges
 748                         hashindex = (unsigned int)(e1 + e2) % TRIANGLEEDGEHASH;
 749                         count = 0;
 750                         match = -1;
 751                         for (hash = edgehash[hashindex];hash;hash = hash->next)
 752                         {
 753                                 if (hash->element[0] == e2 && hash->element[1] == e1)
 754                                 {
 755                                         if (hash->triangle != i)
 756                                                 match = hash->triangle;
 757                                         count++;
 758                                 }
 759                                 else if ((hash->element[0] == e1 && hash->element[1] == e2))
 760                                         count++;
 761                         }
 762                         // detect edges shared by three triangles and make them seams
 763                         if (count > 2)
 764                                 match = -1;
 765                         n[p] = match;
 766                 }
 767
 768                 // also send a keepalive here (this can take a while too!)
 769                 CL_KeepaliveMessage(false);
 770         }
 771         // free the allocated buffer
 772         Mem_Free(edgehashentries);
 773         Mem_Free(edgehash);
 774 }
 775 #else
 776 // very slow but simple way
 777 static int Mod_FindTriangleWithEdge(const int *elements, int numtriangles, int start, int end, int ignore)
 778 {
 779         int i, match, count;
 780         count = 0;
 781         match = -1;
 782         for (i = 0;i < numtriangles;i++, elements += 3)
 783         {
 784                      if ((elements[0] == start && elements[1] == end)
 785                       || (elements[1] == start && elements[2] == end)
 786                       || (elements[2] == start && elements[0] == end))
 787                 {
 788                         if (i != ignore)
 789                                 match = i;
 790                         count++;
 791                 }
 792                 else if ((elements[1] == start && elements[0] == end)
 793                       || (elements[2] == start && elements[1] == end)
 794                       || (elements[0] == start && elements[2] == end))
 795                         count++;
 796         }
 797         // detect edges shared by three triangles and make them seams
 798         if (count > 2)
 799                 match = -1;
 800         return match;
 801 }
 802
 803 void Mod_BuildTriangleNeighbors(int *neighbors, const int *elements, int numtriangles)
 804 {
 805         int i, *n;
 806         const int *e;
 807         for (i = 0, e = elements, n = neighbors;i < numtriangles;i++, e += 3, n += 3)
 808         {
 809                 n[0] = Mod_FindTriangleWithEdge(elements, numtriangles, e[1], e[0], i);
 810                 n[1] = Mod_FindTriangleWithEdge(elements, numtriangles, e[2], e[1], i);
 811                 n[2] = Mod_FindTriangleWithEdge(elements, numtriangles, e[0], e[2], i);
 812         }
 813 }
 814 #endif
 815
 816 void Mod_ValidateElements(int *elements, int numtriangles, int firstvertex, int numverts, const char *filename, int fileline)
 817 {
 818         int i, warned = false, endvertex = firstvertex + numverts;
 819         for (i = 0;i < numtriangles * 3;i++)
 820         {
 821                 if (elements[i] < firstvertex || elements[i] >= endvertex)
 822                 {
 823                         if (!warned)
 824                         {
 825                                 warned = true;
 826                                 Con_Printf("Mod_ValidateElements: out of bounds elements detected at %s:%d\n", filename, fileline);
 827                         }
 828                         elements[i] = firstvertex;
 829                 }
 830         }
 831 }
 832
 833 // warning: this is an expensive function!
 834 void Mod_BuildNormals(int firstvertex, int numvertices, int numtriangles, const float *vertex3f, const int *elements, float *normal3f, qboolean areaweighting)
 835 {
 836         int i, j;
 837         const int *element;
 838         float *vectorNormal;
 839         float areaNormal[3];
 840         // clear the vectors
 841         memset(normal3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 842         // process each vertex of each triangle and accumulate the results
 843         // use area-averaging, to make triangles with a big area have a bigger
 844         // weighting on the vertex normal than triangles with a small area
 845         // to do so, just add the 'normals' together (the bigger the area
 846         // the greater the length of the normal is
 847         element = elements;
 848         for (i = 0; i < numtriangles; i++, element += 3)
 849         {
 850                 TriangleNormal(
 851                         vertex3f + element[0] * 3,
 852                         vertex3f + element[1] * 3,
 853                         vertex3f + element[2] * 3,
 854                         areaNormal
 855                         );
 856
 857                 if (!areaweighting)
 858                         VectorNormalize(areaNormal);
 859
 860                 for (j = 0;j < 3;j++)
 861                 {
 862                         vectorNormal = normal3f + element[j] * 3;
 863                         vectorNormal[0] += areaNormal[0];
 864                         vectorNormal[1] += areaNormal[1];
 865                         vectorNormal[2] += areaNormal[2];
 866                 }
 867         }
 868         // and just normalize the accumulated vertex normal in the end
 869         vectorNormal = normal3f + 3 * firstvertex;
 870         for (i = 0; i < numvertices; i++, vectorNormal += 3)
 871                 VectorNormalize(vectorNormal);
 872 }
 873
 874 #if 0
 875 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)
 876 {
 877         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 878         // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 879         // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 880
 881         // 6 multiply, 9 subtract
 882         VectorSubtract(v1, v0, v10);
 883         VectorSubtract(v2, v0, v20);
 884         normal3f[0] = v20[1] * v10[2] - v20[2] * v10[1];
 885         normal3f[1] = v20[2] * v10[0] - v20[0] * v10[2];
 886         normal3f[2] = v20[0] * v10[1] - v20[1] * v10[0];
 887         // 12 multiply, 10 subtract
 888         tc10[1] = tc1[1] - tc0[1];
 889         tc20[1] = tc2[1] - tc0[1];
 890         svector3f[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 891         svector3f[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 892         svector3f[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 893         tc10[0] = tc1[0] - tc0[0];
 894         tc20[0] = tc2[0] - tc0[0];
 895         tvector3f[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 896         tvector3f[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 897         tvector3f[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 898         // 12 multiply, 4 add, 6 subtract
 899         f = DotProduct(svector3f, normal3f);
 900         svector3f[0] -= f * normal3f[0];
 901         svector3f[1] -= f * normal3f[1];
 902         svector3f[2] -= f * normal3f[2];
 903         f = DotProduct(tvector3f, normal3f);
 904         tvector3f[0] -= f * normal3f[0];
 905         tvector3f[1] -= f * normal3f[1];
 906         tvector3f[2] -= f * normal3f[2];
 907         // if texture is mapped the wrong way (counterclockwise), the tangents
 908         // have to be flipped, this is detected by calculating a normal from the
 909         // two tangents, and seeing if it is opposite the surface normal
 910         // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 911         CrossProduct(tvector3f, svector3f, tangentcross);
 912         if (DotProduct(tangentcross, normal3f) < 0)
 913         {
 914                 VectorNegate(svector3f, svector3f);
 915                 VectorNegate(tvector3f, tvector3f);
 916         }
 917 }
 918 #endif
 919
 920 // warning: this is a very expensive function!
 921 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)
 922 {
 923         int i, tnum;
 924         float sdir[3], tdir[3], normal[3], *svec, *tvec;
 925         const float *v0, *v1, *v2, *tc0, *tc1, *tc2, *n;
 926         float f, tangentcross[3], v10[3], v20[3], tc10[2], tc20[2];
 927         const int *e;
 928         // clear the vectors
 929         memset(svector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 930         memset(tvector3f + 3 * firstvertex, 0, numvertices * sizeof(float[3]));
 931         // process each vertex of each triangle and accumulate the results
 932         for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
 933         {
 934                 v0 = vertex3f + e[0] * 3;
 935                 v1 = vertex3f + e[1] * 3;
 936                 v2 = vertex3f + e[2] * 3;
 937                 tc0 = texcoord2f + e[0] * 2;
 938                 tc1 = texcoord2f + e[1] * 2;
 939                 tc2 = texcoord2f + e[2] * 2;
 940
 941                 // 79 add/sub/negate/multiply (1 cycle), 1 compare (3 cycle?), total cycles not counting load/store/exchange roughly 82 cycles
 942                 // 6 add, 28 subtract, 39 multiply, 1 compare, 50% chance of 6 negates
 943
 944                 // calculate the edge directions and surface normal
 945                 // 6 multiply, 9 subtract
 946                 VectorSubtract(v1, v0, v10);
 947                 VectorSubtract(v2, v0, v20);
 948                 normal[0] = v20[1] * v10[2] - v20[2] * v10[1];
 949                 normal[1] = v20[2] * v10[0] - v20[0] * v10[2];
 950                 normal[2] = v20[0] * v10[1] - v20[1] * v10[0];
 951
 952                 // calculate the tangents
 953                 // 12 multiply, 10 subtract
 954                 tc10[1] = tc1[1] - tc0[1];
 955                 tc20[1] = tc2[1] - tc0[1];
 956                 sdir[0] = tc10[1] * v20[0] - tc20[1] * v10[0];
 957                 sdir[1] = tc10[1] * v20[1] - tc20[1] * v10[1];
 958                 sdir[2] = tc10[1] * v20[2] - tc20[1] * v10[2];
 959                 tc10[0] = tc1[0] - tc0[0];
 960                 tc20[0] = tc2[0] - tc0[0];
 961                 tdir[0] = tc10[0] * v20[0] - tc20[0] * v10[0];
 962                 tdir[1] = tc10[0] * v20[1] - tc20[0] * v10[1];
 963                 tdir[2] = tc10[0] * v20[2] - tc20[0] * v10[2];
 964
 965                 // if texture is mapped the wrong way (counterclockwise), the tangents
 966                 // have to be flipped, this is detected by calculating a normal from the
 967                 // two tangents, and seeing if it is opposite the surface normal
 968                 // 9 multiply, 2 add, 3 subtract, 1 compare, 50% chance of: 6 negates
 969                 CrossProduct(tdir, sdir, tangentcross);
 970                 if (DotProduct(tangentcross, normal) < 0)
 971                 {
 972                         VectorNegate(sdir, sdir);
 973                         VectorNegate(tdir, tdir);
 974                 }
 975
 976                 if (!areaweighting)
 977                 {
 978                         VectorNormalize(sdir);
 979                         VectorNormalize(tdir);
 980                 }
 981                 for (i = 0;i < 3;i++)
 982                 {
 983                         VectorAdd(svector3f + e[i]*3, sdir, svector3f + e[i]*3);
 984                         VectorAdd(tvector3f + e[i]*3, tdir, tvector3f + e[i]*3);
 985                 }
 986         }
 987         // make the tangents completely perpendicular to the surface normal, and
 988         // then normalize them
 989         // 16 assignments, 2 divide, 2 sqrt, 2 negates, 14 adds, 24 multiplies
 990         for (i = 0, svec = svector3f + 3 * firstvertex, tvec = tvector3f + 3 * firstvertex, n = normal3f + 3 * firstvertex;i < numvertices;i++, svec += 3, tvec += 3, n += 3)
 991         {
 992                 f = -DotProduct(svec, n);
 993                 VectorMA(svec, f, n, svec);
 994                 VectorNormalize(svec);
 995                 f = -DotProduct(tvec, n);
 996                 VectorMA(tvec, f, n, tvec);
 997                 VectorNormalize(tvec);
 998         }
 999 }
1000
1001 void Mod_AllocSurfMesh(mempool_t *mempool, int numvertices, int numtriangles, qboolean lightmapoffsets, qboolean vertexcolors, qboolean neighbors)
1002 {
1003         unsigned char *data;
1004         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));
1005         loadmodel->surfmesh.num_vertices = numvertices;
1006         loadmodel->surfmesh.num_triangles = numtriangles;
1007         if (loadmodel->surfmesh.num_vertices)
1008         {
1009                 loadmodel->surfmesh.data_vertex3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
1010                 loadmodel->surfmesh.data_svector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
1011                 loadmodel->surfmesh.data_tvector3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
1012                 loadmodel->surfmesh.data_normal3f = (float *)data, data += sizeof(float[3]) * loadmodel->surfmesh.num_vertices;
1013                 loadmodel->surfmesh.data_texcoordtexture2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
1014                 loadmodel->surfmesh.data_texcoordlightmap2f = (float *)data, data += sizeof(float[2]) * loadmodel->surfmesh.num_vertices;
1015                 if (vertexcolors)
1016                         loadmodel->surfmesh.data_lightmapcolor4f = (float *)data, data += sizeof(float[4]) * loadmodel->surfmesh.num_vertices;
1017                 if (lightmapoffsets)
1018                         loadmodel->surfmesh.data_lightmapoffsets = (int *)data, data += sizeof(int) * loadmodel->surfmesh.num_vertices;
1019         }
1020         if (loadmodel->surfmesh.num_triangles)
1021         {
1022                 loadmodel->surfmesh.data_element3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
1023                 if (neighbors)
1024                         loadmodel->surfmesh.data_neighbor3i = (int *)data, data += sizeof(int[3]) * loadmodel->surfmesh.num_triangles;
1025                 if (loadmodel->surfmesh.num_vertices <= 65536)
1026                         loadmodel->surfmesh.data_element3s = (unsigned short *)data, data += sizeof(unsigned short[3]) * loadmodel->surfmesh.num_triangles;
1027         }
1028 }
1029
1030 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)
1031 {
1032         shadowmesh_t *newmesh;
1033         unsigned char *data;
1034         int size;
1035         size = sizeof(shadowmesh_t);
1036         size += maxverts * sizeof(float[3]);
1037         if (light)
1038                 size += maxverts * sizeof(float[11]);
1039         size += maxtriangles * sizeof(int[3]);
1040         if (maxverts <= 65536)
1041                 size += maxtriangles * sizeof(unsigned short[3]);
1042         if (neighbors)
1043                 size += maxtriangles * sizeof(int[3]);
1044         if (expandable)
1045                 size += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *) + maxverts * sizeof(shadowmeshvertexhash_t);
1046         data = (unsigned char *)Mem_Alloc(mempool, size);
1047         newmesh = (shadowmesh_t *)data;data += sizeof(*newmesh);
1048         newmesh->map_diffuse = map_diffuse;
1049         newmesh->map_specular = map_specular;
1050         newmesh->map_normal = map_normal;
1051         newmesh->maxverts = maxverts;
1052         newmesh->maxtriangles = maxtriangles;
1053         newmesh->numverts = 0;
1054         newmesh->numtriangles = 0;
1055         memset(newmesh->sideoffsets, 0, sizeof(newmesh->sideoffsets));
1056         memset(newmesh->sidetotals, 0, sizeof(newmesh->sidetotals));
1057
1058         newmesh->vertex3f = (float *)data;data += maxverts * sizeof(float[3]);
1059         if (light)
1060         {
1061                 newmesh->svector3f = (float *)data;data += maxverts * sizeof(float[3]);
1062                 newmesh->tvector3f = (float *)data;data += maxverts * sizeof(float[3]);
1063                 newmesh->normal3f = (float *)data;data += maxverts * sizeof(float[3]);
1064                 newmesh->texcoord2f = (float *)data;data += maxverts * sizeof(float[2]);
1065         }
1066         newmesh->element3i = (int *)data;data += maxtriangles * sizeof(int[3]);
1067         if (neighbors)
1068         {
1069                 newmesh->neighbor3i = (int *)data;data += maxtriangles * sizeof(int[3]);
1070         }
1071         if (expandable)
1072         {
1073                 newmesh->vertexhashtable = (shadowmeshvertexhash_t **)data;data += SHADOWMESHVERTEXHASH * sizeof(shadowmeshvertexhash_t *);
1074                 newmesh->vertexhashentries = (shadowmeshvertexhash_t *)data;data += maxverts * sizeof(shadowmeshvertexhash_t);
1075         }
1076         if (maxverts <= 65536)
1077                 newmesh->element3s = (unsigned short *)data;data += maxtriangles * sizeof(unsigned short[3]);
1078         return newmesh;
1079 }
1080
1081 shadowmesh_t *Mod_ShadowMesh_ReAlloc(mempool_t *mempool, shadowmesh_t *oldmesh, int light, int neighbors)
1082 {
1083         shadowmesh_t *newmesh;
1084         newmesh = Mod_ShadowMesh_Alloc(mempool, oldmesh->numverts, oldmesh->numtriangles, oldmesh->map_diffuse, oldmesh->map_specular, oldmesh->map_normal, light, neighbors, false);
1085         newmesh->numverts = oldmesh->numverts;
1086         newmesh->numtriangles = oldmesh->numtriangles;
1087         memcpy(newmesh->sideoffsets, oldmesh->sideoffsets, sizeof(oldmesh->sideoffsets));
1088         memcpy(newmesh->sidetotals, oldmesh->sidetotals, sizeof(oldmesh->sidetotals));
1089
1090         memcpy(newmesh->vertex3f, oldmesh->vertex3f, oldmesh->numverts * sizeof(float[3]));
1091         if (newmesh->svector3f && oldmesh->svector3f)
1092         {
1093                 memcpy(newmesh->svector3f, oldmesh->svector3f, oldmesh->numverts * sizeof(float[3]));
1094                 memcpy(newmesh->tvector3f, oldmesh->tvector3f, oldmesh->numverts * sizeof(float[3]));
1095                 memcpy(newmesh->normal3f, oldmesh->normal3f, oldmesh->numverts * sizeof(float[3]));
1096                 memcpy(newmesh->texcoord2f, oldmesh->texcoord2f, oldmesh->numverts * sizeof(float[2]));
1097         }
1098         memcpy(newmesh->element3i, oldmesh->element3i, oldmesh->numtriangles * sizeof(int[3]));
1099         if (newmesh->neighbor3i && oldmesh->neighbor3i)
1100                 memcpy(newmesh->neighbor3i, oldmesh->neighbor3i, oldmesh->numtriangles * sizeof(int[3]));
1101         return newmesh;
1102 }
1103
1104 int Mod_ShadowMesh_AddVertex(shadowmesh_t *mesh, float *vertex14f)
1105 {
1106         int hashindex, vnum;
1107         shadowmeshvertexhash_t *hash;
1108         // this uses prime numbers intentionally
1109         hashindex = (unsigned int) (vertex14f[0] * 2003 + vertex14f[1] * 4001 + vertex14f[2] * 7919) % SHADOWMESHVERTEXHASH;
1110         for (hash = mesh->vertexhashtable[hashindex];hash;hash = hash->next)
1111         {
1112                 vnum = (hash - mesh->vertexhashentries);
1113                 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]))
1114                  && (mesh->svector3f == NULL || (mesh->svector3f[vnum * 3 + 0] == vertex14f[3] && mesh->svector3f[vnum * 3 + 1] == vertex14f[4] && mesh->svector3f[vnum * 3 + 2] == vertex14f[5]))
1115                  && (mesh->tvector3f == NULL || (mesh->tvector3f[vnum * 3 + 0] == vertex14f[6] && mesh->tvector3f[vnum * 3 + 1] == vertex14f[7] && mesh->tvector3f[vnum * 3 + 2] == vertex14f[8]))
1116                  && (mesh->normal3f == NULL || (mesh->normal3f[vnum * 3 + 0] == vertex14f[9] && mesh->normal3f[vnum * 3 + 1] == vertex14f[10] && mesh->normal3f[vnum * 3 + 2] == vertex14f[11]))
1117                  && (mesh->texcoord2f == NULL || (mesh->texcoord2f[vnum * 2 + 0] == vertex14f[12] && mesh->texcoord2f[vnum * 2 + 1] == vertex14f[13])))
1118                         return hash - mesh->vertexhashentries;
1119         }
1120         vnum = mesh->numverts++;
1121         hash = mesh->vertexhashentries + vnum;
1122         hash->next = mesh->vertexhashtable[hashindex];
1123         mesh->vertexhashtable[hashindex] = hash;
1124         if (mesh->vertex3f) {mesh->vertex3f[vnum * 3 + 0] = vertex14f[0];mesh->vertex3f[vnum * 3 + 1] = vertex14f[1];mesh->vertex3f[vnum * 3 + 2] = vertex14f[2];}
1125         if (mesh->svector3f) {mesh->svector3f[vnum * 3 + 0] = vertex14f[3];mesh->svector3f[vnum * 3 + 1] = vertex14f[4];mesh->svector3f[vnum * 3 + 2] = vertex14f[5];}
1126         if (mesh->tvector3f) {mesh->tvector3f[vnum * 3 + 0] = vertex14f[6];mesh->tvector3f[vnum * 3 + 1] = vertex14f[7];mesh->tvector3f[vnum * 3 + 2] = vertex14f[8];}
1127         if (mesh->normal3f) {mesh->normal3f[vnum * 3 + 0] = vertex14f[9];mesh->normal3f[vnum * 3 + 1] = vertex14f[10];mesh->normal3f[vnum * 3 + 2] = vertex14f[11];}
1128         if (mesh->texcoord2f) {mesh->texcoord2f[vnum * 2 + 0] = vertex14f[12];mesh->texcoord2f[vnum * 2 + 1] = vertex14f[13];}
1129         return vnum;
1130 }
1131
1132 void Mod_ShadowMesh_AddTriangle(mempool_t *mempool, shadowmesh_t *mesh, rtexture_t *map_diffuse, rtexture_t *map_specular, rtexture_t *map_normal, float *vertex14f)
1133 {
1134         if (mesh->numtriangles == 0)
1135         {
1136                 // set the properties on this empty mesh to be more favorable...
1137                 // (note: this case only occurs for the first triangle added to a new mesh chain)
1138                 mesh->map_diffuse = map_diffuse;
1139                 mesh->map_specular = map_specular;
1140                 mesh->map_normal = map_normal;
1141         }
1142         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)
1143         {
1144                 if (mesh->next == NULL)
1145                         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);
1146                 mesh = mesh->next;
1147         }
1148         mesh->element3i[mesh->numtriangles * 3 + 0] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 0);
1149         mesh->element3i[mesh->numtriangles * 3 + 1] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 1);
1150         mesh->element3i[mesh->numtriangles * 3 + 2] = Mod_ShadowMesh_AddVertex(mesh, vertex14f + 14 * 2);
1151         mesh->numtriangles++;
1152 }
1153
1154 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)
1155 {
1156         int i, j, e;
1157         float vbuf[3*14], *v;
1158         memset(vbuf, 0, sizeof(vbuf));
1159         for (i = 0;i < numtris;i++)
1160         {
1161                 for (j = 0, v = vbuf;j < 3;j++, v += 14)
1162                 {
1163                         e = *element3i++;
1164                         if (vertex3f)
1165                         {
1166                                 v[0] = vertex3f[e * 3 + 0];
1167                                 v[1] = vertex3f[e * 3 + 1];
1168                                 v[2] = vertex3f[e * 3 + 2];
1169                         }
1170                         if (svector3f)
1171                         {
1172                                 v[3] = svector3f[e * 3 + 0];
1173                                 v[4] = svector3f[e * 3 + 1];
1174                                 v[5] = svector3f[e * 3 + 2];
1175                         }
1176                         if (tvector3f)
1177                         {
1178                                 v[6] = tvector3f[e * 3 + 0];
1179                                 v[7] = tvector3f[e * 3 + 1];
1180                                 v[8] = tvector3f[e * 3 + 2];
1181                         }
1182                         if (normal3f)
1183                         {
1184                                 v[9] = normal3f[e * 3 + 0];
1185                                 v[10] = normal3f[e * 3 + 1];
1186                                 v[11] = normal3f[e * 3 + 2];
1187                         }
1188                         if (texcoord2f)
1189                         {
1190                                 v[12] = texcoord2f[e * 2 + 0];
1191                                 v[13] = texcoord2f[e * 2 + 1];
1192                         }
1193                 }
1194                 Mod_ShadowMesh_AddTriangle(mempool, mesh, map_diffuse, map_specular, map_normal, vbuf);
1195         }
1196
1197         // the triangle calculation can take a while, so let's do a keepalive here
1198         CL_KeepaliveMessage(false);
1199 }
1200
1201 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)
1202 {
1203         // the preparation before shadow mesh initialization can take a while, so let's do a keepalive here
1204         CL_KeepaliveMessage(false);
1205
1206         return Mod_ShadowMesh_Alloc(mempool, maxverts, maxtriangles, map_diffuse, map_specular, map_normal, light, neighbors, expandable);
1207 }
1208
1209 static void Mod_ShadowMesh_CreateVBOs(shadowmesh_t *mesh, mempool_t *mempool)
1210 {
1211         if (!mesh->numverts)
1212                 return;
1213
1214         // build r_vertexmesh_t array
1215         // (compressed interleaved array for D3D)
1216         if (!mesh->vertexmesh && mesh->texcoord2f && vid.useinterleavedarrays)
1217         {
1218                 int vertexindex;
1219                 int numvertices = mesh->numverts;
1220                 r_vertexmesh_t *vertexmesh;
1221                 mesh->vertexmesh = vertexmesh = (r_vertexmesh_t*)Mem_Alloc(mempool, numvertices * sizeof(*mesh->vertexmesh));
1222                 for (vertexindex = 0;vertexindex < numvertices;vertexindex++, vertexmesh++)
1223                 {
1224                         VectorCopy(mesh->vertex3f + 3*vertexindex, vertexmesh->vertex3f);
1225                         VectorScale(mesh->svector3f + 3*vertexindex, 1.0f, vertexmesh->svector3f);
1226                         VectorScale(mesh->tvector3f + 3*vertexindex, 1.0f, vertexmesh->tvector3f);
1227                         VectorScale(mesh->normal3f + 3*vertexindex, 1.0f, vertexmesh->normal3f);
1228                         Vector2Copy(mesh->texcoord2f + 2*vertexindex, vertexmesh->texcoordtexture2f);
1229                 }
1230         }
1231
1232         // upload short indices as a buffer
1233         if (mesh->element3s && !mesh->element3s_indexbuffer)
1234                 mesh->element3s_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3s, mesh->numtriangles * sizeof(short[3]), loadmodel->name, true, false, false, true);
1235
1236         // upload int indices as a buffer
1237         if (mesh->element3i && !mesh->element3i_indexbuffer && !mesh->element3s)
1238                 mesh->element3i_indexbuffer = R_Mesh_CreateMeshBuffer(mesh->element3i, mesh->numtriangles * sizeof(int[3]), loadmodel->name, true, false, false, false);
1239
1240         // vertex buffer is several arrays and we put them in the same buffer
1241         //
1242         // is this wise?  the texcoordtexture2f array is used with dynamic
1243         // vertex/svector/tvector/normal when rendering animated models, on the
1244         // other hand animated models don't use a lot of vertices anyway...
1245         if (!mesh->vbo_vertexbuffer && !vid.useinterleavedarrays)
1246         {
1247                 int size;
1248                 unsigned char *mem;
1249                 size = 0;
1250                 mesh->vbooffset_vertexmesh         = size;if (mesh->vertexmesh        ) size += mesh->numverts * sizeof(r_vertexmesh_t);
1251                 mesh->vbooffset_vertex3f           = size;if (mesh->vertex3f          ) size += mesh->numverts * sizeof(float[3]);
1252                 mesh->vbooffset_svector3f          = size;if (mesh->svector3f         ) size += mesh->numverts * sizeof(float[3]);
1253                 mesh->vbooffset_tvector3f          = size;if (mesh->tvector3f         ) size += mesh->numverts * sizeof(float[3]);
1254                 mesh->vbooffset_normal3f           = size;if (mesh->normal3f          ) size += mesh->numverts * sizeof(float[3]);
1255                 mesh->vbooffset_texcoord2f         = size;if (mesh->texcoord2f        ) size += mesh->numverts * sizeof(float[2]);
1256                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
1257                 if (mesh->vertexmesh        ) memcpy(mem + mesh->vbooffset_vertexmesh        , mesh->vertexmesh        , mesh->numverts * sizeof(r_vertexmesh_t));
1258                 if (mesh->vertex3f          ) memcpy(mem + mesh->vbooffset_vertex3f          , mesh->vertex3f          , mesh->numverts * sizeof(float[3]));
1259                 if (mesh->svector3f         ) memcpy(mem + mesh->vbooffset_svector3f         , mesh->svector3f         , mesh->numverts * sizeof(float[3]));
1260                 if (mesh->tvector3f         ) memcpy(mem + mesh->vbooffset_tvector3f         , mesh->tvector3f         , mesh->numverts * sizeof(float[3]));
1261                 if (mesh->normal3f          ) memcpy(mem + mesh->vbooffset_normal3f          , mesh->normal3f          , mesh->numverts * sizeof(float[3]));
1262                 if (mesh->texcoord2f        ) memcpy(mem + mesh->vbooffset_texcoord2f        , mesh->texcoord2f        , mesh->numverts * sizeof(float[2]));
1263                 mesh->vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, "shadowmesh", false, false, false, false);
1264                 Mem_Free(mem);
1265         }
1266 }
1267
1268 shadowmesh_t *Mod_ShadowMesh_Finish(mempool_t *mempool, shadowmesh_t *firstmesh, qboolean light, qboolean neighbors, qboolean createvbo)
1269 {
1270         shadowmesh_t *mesh, *newmesh, *nextmesh;
1271         // reallocate meshs to conserve space
1272         for (mesh = firstmesh, firstmesh = NULL;mesh;mesh = nextmesh)
1273         {
1274                 nextmesh = mesh->next;
1275                 if (mesh->numverts >= 3 && mesh->numtriangles >= 1)
1276                 {
1277                         newmesh = Mod_ShadowMesh_ReAlloc(mempool, mesh, light, neighbors);
1278                         newmesh->next = firstmesh;
1279                         firstmesh = newmesh;
1280                         if (newmesh->element3s)
1281                         {
1282                                 int i;
1283                                 for (i = 0;i < newmesh->numtriangles*3;i++)
1284                                         newmesh->element3s[i] = newmesh->element3i[i];
1285                         }
1286                         if (createvbo)
1287                                 Mod_ShadowMesh_CreateVBOs(newmesh, mempool);
1288                 }
1289                 Mem_Free(mesh);
1290         }
1291
1292         // this can take a while, so let's do a keepalive here
1293         CL_KeepaliveMessage(false);
1294
1295         return firstmesh;
1296 }
1297
1298 void Mod_ShadowMesh_CalcBBox(shadowmesh_t *firstmesh, vec3_t mins, vec3_t maxs, vec3_t center, float *radius)
1299 {
1300         int i;
1301         shadowmesh_t *mesh;
1302         vec3_t nmins, nmaxs, ncenter, temp;
1303         float nradius2, dist2, *v;
1304         VectorClear(nmins);
1305         VectorClear(nmaxs);
1306         // calculate bbox
1307         for (mesh = firstmesh;mesh;mesh = mesh->next)
1308         {
1309                 if (mesh == firstmesh)
1310                 {
1311                         VectorCopy(mesh->vertex3f, nmins);
1312                         VectorCopy(mesh->vertex3f, nmaxs);
1313                 }
1314                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1315                 {
1316                         if (nmins[0] > v[0]) nmins[0] = v[0];if (nmaxs[0] < v[0]) nmaxs[0] = v[0];
1317                         if (nmins[1] > v[1]) nmins[1] = v[1];if (nmaxs[1] < v[1]) nmaxs[1] = v[1];
1318                         if (nmins[2] > v[2]) nmins[2] = v[2];if (nmaxs[2] < v[2]) nmaxs[2] = v[2];
1319                 }
1320         }
1321         // calculate center and radius
1322         ncenter[0] = (nmins[0] + nmaxs[0]) * 0.5f;
1323         ncenter[1] = (nmins[1] + nmaxs[1]) * 0.5f;
1324         ncenter[2] = (nmins[2] + nmaxs[2]) * 0.5f;
1325         nradius2 = 0;
1326         for (mesh = firstmesh;mesh;mesh = mesh->next)
1327         {
1328                 for (i = 0, v = mesh->vertex3f;i < mesh->numverts;i++, v += 3)
1329                 {
1330                         VectorSubtract(v, ncenter, temp);
1331                         dist2 = DotProduct(temp, temp);
1332                         if (nradius2 < dist2)
1333                                 nradius2 = dist2;
1334                 }
1335         }
1336         // return data
1337         if (mins)
1338                 VectorCopy(nmins, mins);
1339         if (maxs)
1340                 VectorCopy(nmaxs, maxs);
1341         if (center)
1342                 VectorCopy(ncenter, center);
1343         if (radius)
1344                 *radius = sqrt(nradius2);
1345 }
1346
1347 void Mod_ShadowMesh_Free(shadowmesh_t *mesh)
1348 {
1349         shadowmesh_t *nextmesh;
1350         for (;mesh;mesh = nextmesh)
1351         {
1352                 if (mesh->element3i_indexbuffer)
1353                         R_Mesh_DestroyMeshBuffer(mesh->element3i_indexbuffer);
1354                 if (mesh->element3s_indexbuffer)
1355                         R_Mesh_DestroyMeshBuffer(mesh->element3s_indexbuffer);
1356                 if (mesh->vbo_vertexbuffer)
1357                         R_Mesh_DestroyMeshBuffer(mesh->vbo_vertexbuffer);
1358                 nextmesh = mesh->next;
1359                 Mem_Free(mesh);
1360         }
1361 }
1362
1363 void Mod_CreateCollisionMesh(dp_model_t *mod)
1364 {
1365         int k, numcollisionmeshtriangles;
1366         qboolean usesinglecollisionmesh = false;
1367         const msurface_t *surface = NULL;
1368
1369         mempool_t *mempool = mod->mempool;
1370         if (!mempool && mod->brush.parentmodel)
1371                 mempool = mod->brush.parentmodel->mempool;
1372         // make a single combined collision mesh for physics engine use
1373         // TODO rewrite this to use the collision brushes as source, to fix issues with e.g. common/caulk which creates no drawsurface
1374         numcollisionmeshtriangles = 0;
1375         for (k = 0;k < mod->nummodelsurfaces;k++)
1376         {
1377                 surface = mod->data_surfaces + mod->firstmodelsurface + k;
1378                 if (!strcmp(surface->texture->name, "collision") || !strcmp(surface->texture->name, "collisionconvex")) // found collision mesh
1379                 {
1380                         usesinglecollisionmesh = true;
1381                         numcollisionmeshtriangles = surface->num_triangles;
1382                         break;
1383                 }
1384                 if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1385                         continue;
1386                 numcollisionmeshtriangles += surface->num_triangles;
1387         }
1388         mod->brush.collisionmesh = Mod_ShadowMesh_Begin(mempool, numcollisionmeshtriangles * 3, numcollisionmeshtriangles, NULL, NULL, NULL, false, false, true);
1389         if (usesinglecollisionmesh)
1390                 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));
1391         else
1392         {
1393                 for (k = 0;k < mod->nummodelsurfaces;k++)
1394                 {
1395                         surface = mod->data_surfaces + mod->firstmodelsurface + k;
1396                         if (!(surface->texture->supercontents & SUPERCONTENTS_SOLID))
1397                                 continue;
1398                         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));
1399                 }
1400         }
1401         mod->brush.collisionmesh = Mod_ShadowMesh_Finish(mempool, mod->brush.collisionmesh, false, false, false);
1402 }
1403
1404 #if 0
1405 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)
1406 {
1407         float v[3], tc[3];
1408         v[0] = ix;
1409         v[1] = iy;
1410         if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
1411                 v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
1412         else
1413                 v[2] = 0;
1414         Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
1415         Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
1416         texcoord2f[0] = tc[0];
1417         texcoord2f[1] = tc[1];
1418 }
1419
1420 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)
1421 {
1422         float vup[3], vdown[3], vleft[3], vright[3];
1423         float tcup[3], tcdown[3], tcleft[3], tcright[3];
1424         float sv[3], tv[3], nl[3];
1425         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
1426         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
1427         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
1428         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
1429         Mod_GetTerrainVertex3fTexCoord2fFromBGRA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
1430         Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
1431         Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
1432         VectorAdd(svector3f, sv, svector3f);
1433         VectorAdd(tvector3f, tv, tvector3f);
1434         VectorAdd(normal3f, nl, normal3f);
1435         Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
1436         VectorAdd(svector3f, sv, svector3f);
1437         VectorAdd(tvector3f, tv, tvector3f);
1438         VectorAdd(normal3f, nl, normal3f);
1439         Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
1440         VectorAdd(svector3f, sv, svector3f);
1441         VectorAdd(tvector3f, tv, tvector3f);
1442         VectorAdd(normal3f, nl, normal3f);
1443 }
1444
1445 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)
1446 {
1447         int x, y, ix, iy, *e;
1448         e = element3i;
1449         for (y = 0;y < height;y++)
1450         {
1451                 for (x = 0;x < width;x++)
1452                 {
1453                         e[0] = (y + 1) * (width + 1) + (x + 0);
1454                         e[1] = (y + 0) * (width + 1) + (x + 0);
1455                         e[2] = (y + 1) * (width + 1) + (x + 1);
1456                         e[3] = (y + 0) * (width + 1) + (x + 0);
1457                         e[4] = (y + 0) * (width + 1) + (x + 1);
1458                         e[5] = (y + 1) * (width + 1) + (x + 1);
1459                         e += 6;
1460                 }
1461         }
1462         Mod_BuildTriangleNeighbors(neighbor3i, element3i, width*height*2);
1463         for (y = 0, iy = y1;y < height + 1;y++, iy++)
1464                 for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
1465                         Mod_GetTerrainVertexFromBGRA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
1466 }
1467 #endif
1468
1469 #if 0
1470 void Mod_Terrain_SurfaceRecurseChunk(dp_model_t *model, int stepsize, int x, int y)
1471 {
1472         float mins[3];
1473         float maxs[3];
1474         float chunkwidth = min(stepsize, model->terrain.width - 1 - x);
1475         float chunkheight = min(stepsize, model->terrain.height - 1 - y);
1476         float viewvector[3];
1477         unsigned int firstvertex;
1478         unsigned int *e;
1479         float *v;
1480         if (chunkwidth < 2 || chunkheight < 2)
1481                 return;
1482         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]);
1483         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]);
1484         viewvector[0] = bound(mins[0], localvieworigin, maxs[0]) - model->terrain.vieworigin[0];
1485         viewvector[1] = bound(mins[1], localvieworigin, maxs[1]) - model->terrain.vieworigin[1];
1486         viewvector[2] = bound(mins[2], localvieworigin, maxs[2]) - model->terrain.vieworigin[2];
1487         if (stepsize > 1 && VectorLength(viewvector) < stepsize*model->terrain.scale[0]*r_terrain_lodscale.value)
1488         {
1489                 // too close for this stepsize, emit as 4 chunks instead
1490                 stepsize /= 2;
1491                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y);
1492                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y);
1493                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x, y+stepsize);
1494                 Mod_Terrain_SurfaceRecurseChunk(model, stepsize, x+stepsize, y+stepsize);
1495                 return;
1496         }
1497         // emit the geometry at stepsize into our vertex buffer / index buffer
1498         // we add two columns and two rows for skirt
1499         outwidth = chunkwidth+2;
1500         outheight = chunkheight+2;
1501         outwidth2 = outwidth-1;
1502         outheight2 = outheight-1;
1503         outwidth3 = outwidth+1;
1504         outheight3 = outheight+1;
1505         firstvertex = numvertices;
1506         e = model->terrain.element3i + numtriangles;
1507         numtriangles += chunkwidth*chunkheight*2+chunkwidth*2*2+chunkheight*2*2;
1508         v = model->terrain.vertex3f + numvertices;
1509         numvertices += (chunkwidth+1)*(chunkheight+1)+(chunkwidth+1)*2+(chunkheight+1)*2;
1510         // emit the triangles (note: the skirt is treated as two extra rows and two extra columns)
1511         for (ty = 0;ty < outheight;ty++)
1512         {
1513                 for (tx = 0;tx < outwidth;tx++)
1514                 {
1515                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1516                         *e++ = firstvertex + (ty  )*outwidth3+(tx+1);
1517                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1518                         *e++ = firstvertex + (ty  )*outwidth3+(tx  );
1519                         *e++ = firstvertex + (ty+1)*outwidth3+(tx+1);
1520                         *e++ = firstvertex + (ty+1)*outwidth3+(tx  );
1521                 }
1522         }
1523         // TODO: emit surface vertices (x+tx*stepsize, y+ty*stepsize)
1524         for (ty = 0;ty <= outheight;ty++)
1525         {
1526                 skirtrow = ty == 0 || ty == outheight;
1527                 ry = y+bound(1, ty, outheight)*stepsize;
1528                 for (tx = 0;tx <= outwidth;tx++)
1529                 {
1530                         skirt = skirtrow || tx == 0 || tx == outwidth;
1531                         rx = x+bound(1, tx, outwidth)*stepsize;
1532                         v[0] = rx*scale[0];
1533                         v[1] = ry*scale[1];
1534                         v[2] = heightmap[ry*terrainwidth+rx]*scale[2];
1535                         v += 3;
1536                 }
1537         }
1538         // TODO: emit skirt vertices
1539 }
1540
1541 void Mod_Terrain_UpdateSurfacesForViewOrigin(dp_model_t *model)
1542 {
1543         for (y = 0;y < model->terrain.size[1];y += model->terrain.
1544         Mod_Terrain_SurfaceRecurseChunk(model, model->terrain.maxstepsize, x, y);
1545         Mod_Terrain_BuildChunk(model,
1546 }
1547 #endif
1548
1549 static int Mod_LoadQ3Shaders_EnumerateWaveFunc(const char *s)
1550 {
1551         int offset = 0;
1552         if (!strncasecmp(s, "user", 4)) // parse stuff like "user1sin", always user<n>func
1553         {
1554                 offset = bound(0, s[4] - '0', 9);
1555                 offset = (offset + 1) << Q3WAVEFUNC_USER_SHIFT;
1556                 s += 4;
1557                 if(*s)
1558                         ++s;
1559         }
1560         if (!strcasecmp(s, "sin"))             return offset | Q3WAVEFUNC_SIN;
1561         if (!strcasecmp(s, "square"))          return offset | Q3WAVEFUNC_SQUARE;
1562         if (!strcasecmp(s, "triangle"))        return offset | Q3WAVEFUNC_TRIANGLE;
1563         if (!strcasecmp(s, "sawtooth"))        return offset | Q3WAVEFUNC_SAWTOOTH;
1564         if (!strcasecmp(s, "inversesawtooth")) return offset | Q3WAVEFUNC_INVERSESAWTOOTH;
1565         if (!strcasecmp(s, "noise"))           return offset | Q3WAVEFUNC_NOISE;
1566         if (!strcasecmp(s, "none"))            return offset | Q3WAVEFUNC_NONE;
1567         Con_DPrintf("Mod_LoadQ3Shaders: unknown wavefunc %s\n", s);
1568         return offset | Q3WAVEFUNC_NONE;
1569 }
1570
1571 void Mod_FreeQ3Shaders(void)
1572 {
1573         Mem_FreePool(&q3shaders_mem);
1574 }
1575
1576 static void Q3Shader_AddToHash (q3shaderinfo_t* shader)
1577 {
1578         unsigned short hash = CRC_Block_CaseInsensitive ((const unsigned char *)shader->name, strlen (shader->name));
1579         q3shader_hash_entry_t* entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
1580         q3shader_hash_entry_t* lastEntry = NULL;
1581         do
1582         {
1583                 if (strcasecmp (entry->shader.name, shader->name) == 0)
1584                 {
1585                         // redeclaration
1586                         if(shader->dpshaderkill)
1587                         {
1588                                 // killed shader is a redeclarion? we can safely ignore it
1589                                 return;
1590                         }
1591                         else if(entry->shader.dpshaderkill)
1592                         {
1593                                 // replace the old shader!
1594                                 // this will skip the entry allocating part
1595                                 // below and just replace the shader
1596                                 break;
1597                         }
1598                         else
1599                         {
1600                                 unsigned char *start, *end, *start2;
1601                                 start = (unsigned char *) (&shader->Q3SHADERINFO_COMPARE_START);
1602                                 end = ((unsigned char *) (&shader->Q3SHADERINFO_COMPARE_END)) + sizeof(shader->Q3SHADERINFO_COMPARE_END);
1603                                 start2 = (unsigned char *) (&entry->shader.Q3SHADERINFO_COMPARE_START);
1604                                 if(memcmp(start, start2, end - start))
1605                                         Con_DPrintf("Shader '%s' already defined, ignoring mismatching redeclaration\n", shader->name);
1606                                 else
1607                                         Con_DPrintf("Shader '%s' already defined\n", shader->name);
1608                                 return;
1609                         }
1610                 }
1611                 lastEntry = entry;
1612                 entry = entry->chain;
1613         }
1614         while (entry != NULL);
1615         if (entry == NULL)
1616         {
1617                 if (lastEntry->shader.name[0] != 0)
1618                 {
1619                         /* Add to chain */
1620                         q3shader_hash_entry_t* newEntry = (q3shader_hash_entry_t*)
1621                           Mem_ExpandableArray_AllocRecord (&q3shader_data->hash_entries);
1622
1623                         while (lastEntry->chain != NULL) lastEntry = lastEntry->chain;
1624                         lastEntry->chain = newEntry;
1625                         newEntry->chain = NULL;
1626                         lastEntry = newEntry;
1627                 }
1628                 /* else: head of chain, in hash entry array */
1629                 entry = lastEntry;
1630         }
1631         memcpy (&entry->shader, shader, sizeof (q3shaderinfo_t));
1632 }
1633
1634 extern cvar_t mod_noshader_default_offsetmapping;
1635 extern cvar_t mod_q3shader_default_offsetmapping;
1636 extern cvar_t mod_q3shader_default_offsetmapping_scale;
1637 extern cvar_t mod_q3shader_default_offsetmapping_bias;
1638 extern cvar_t mod_q3shader_default_polygonoffset;
1639 extern cvar_t mod_q3shader_default_polygonfactor;
1640 extern cvar_t mod_q3shader_force_addalpha;
1641 extern cvar_t mod_q3shader_force_terrain_alphaflag;
1642 void Mod_LoadQ3Shaders(void)
1643 {
1644         int j;
1645         int fileindex;
1646         fssearch_t *search;
1647         char *f;
1648         const char *text;
1649         q3shaderinfo_t shader;
1650         q3shaderinfo_layer_t *layer;
1651         int numparameters;
1652         char parameter[TEXTURE_MAXFRAMES + 4][Q3PATHLENGTH];
1653         char *custsurfaceparmnames[256]; // VorteX: q3map2 has 64 but well, someone will need more
1654         unsigned long custsurfaceflags[256];
1655         int numcustsurfaceflags;
1656         qboolean dpshaderkill;
1657
1658         Mod_FreeQ3Shaders();
1659
1660         q3shaders_mem = Mem_AllocPool("q3shaders", 0, NULL);
1661         q3shader_data = (q3shader_data_t*)Mem_Alloc (q3shaders_mem,
1662                 sizeof (q3shader_data_t));
1663         Mem_ExpandableArray_NewArray (&q3shader_data->hash_entries,
1664                 q3shaders_mem, sizeof (q3shader_hash_entry_t), 256);
1665         Mem_ExpandableArray_NewArray (&q3shader_data->char_ptrs,
1666                 q3shaders_mem, sizeof (char**), 256);
1667
1668         // parse custinfoparms.txt
1669         numcustsurfaceflags = 0;
1670         if ((text = f = (char *)FS_LoadFile("scripts/custinfoparms.txt", tempmempool, false, NULL)) != NULL)
1671         {
1672                 if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1673                         Con_DPrintf("scripts/custinfoparms.txt: contentflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1674                 else
1675                 {
1676                         while (COM_ParseToken_QuakeC(&text, false))
1677                                 if (!strcasecmp(com_token, "}"))
1678                                         break;
1679                         // custom surfaceflags section
1680                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1681                                 Con_DPrintf("scripts/custinfoparms.txt: surfaceflags section parsing error - expected \"{\", found \"%s\"\n", com_token);
1682                         else
1683                         {
1684                                 while(COM_ParseToken_QuakeC(&text, false))
1685                                 {
1686                                         if (!strcasecmp(com_token, "}"))
1687                                                 break;
1688                                         // register surfaceflag
1689                                         if (numcustsurfaceflags >= 256)
1690                                         {
1691                                                 Con_Printf("scripts/custinfoparms.txt: surfaceflags section parsing error - max 256 surfaceflags exceeded\n");
1692                                                 break;
1693                                         }
1694                                         // name
1695                                         j = (int)strlen(com_token)+1;
1696                                         custsurfaceparmnames[numcustsurfaceflags] = (char *)Mem_Alloc(tempmempool, j);
1697                                         strlcpy(custsurfaceparmnames[numcustsurfaceflags], com_token, j+1);
1698                                         // value
1699                                         if (COM_ParseToken_QuakeC(&text, false))
1700                                                 custsurfaceflags[numcustsurfaceflags] = strtol(com_token, NULL, 0);
1701                                         else
1702                                                 custsurfaceflags[numcustsurfaceflags] = 0;
1703                                         numcustsurfaceflags++;
1704                                 }
1705                         }
1706                 }
1707                 Mem_Free(f);
1708         }
1709
1710         // parse shaders
1711         search = FS_Search("scripts/*.shader", true, false);
1712         if (!search)
1713                 return;
1714         for (fileindex = 0;fileindex < search->numfilenames;fileindex++)
1715         {
1716                 text = f = (char *)FS_LoadFile(search->filenames[fileindex], tempmempool, false, NULL);
1717                 if (!f)
1718                         continue;
1719                 while (COM_ParseToken_QuakeC(&text, false))
1720                 {
1721                         memset (&shader, 0, sizeof(shader));
1722                         shader.name[0] = 0;
1723                         shader.surfaceparms = 0;
1724                         shader.surfaceflags = 0;
1725                         shader.textureflags = 0;
1726                         shader.numlayers = 0;
1727                         shader.lighting = false;
1728                         shader.vertexalpha = false;
1729                         shader.textureblendalpha = false;
1730                         shader.primarylayer = 0;
1731                         shader.backgroundlayer = 0;
1732                         shader.skyboxname[0] = 0;
1733                         shader.deforms[0].deform = Q3DEFORM_NONE;
1734                         shader.dpnortlight = false;
1735                         shader.dpshadow = false;
1736                         shader.dpnoshadow = false;
1737                         shader.dpmeshcollisions = false;
1738                         shader.dpshaderkill = false;
1739                         shader.dpreflectcube[0] = 0;
1740                         shader.reflectmin = 0;
1741                         shader.reflectmax = 1;
1742                         shader.refractfactor = 1;
1743                         Vector4Set(shader.refractcolor4f, 1, 1, 1, 1);
1744                         shader.reflectfactor = 1;
1745                         Vector4Set(shader.reflectcolor4f, 1, 1, 1, 1);
1746                         shader.r_water_wateralpha = 1;
1747                         shader.r_water_waterscroll[0] = 0;
1748                         shader.r_water_waterscroll[1] = 0;
1749                         shader.offsetmapping = (mod_q3shader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
1750                         shader.offsetscale = mod_q3shader_default_offsetmapping_scale.value;
1751                         shader.offsetbias = mod_q3shader_default_offsetmapping_bias.value;
1752                         shader.biaspolygonoffset = mod_q3shader_default_polygonoffset.value;
1753                         shader.biaspolygonfactor = mod_q3shader_default_polygonfactor.value;
1754                         shader.transparentsort = TRANSPARENTSORT_DISTANCE;
1755                         shader.specularscalemod = 1;
1756                         shader.specularpowermod = 1;
1757                         shader.rtlightambient = 0;
1758                         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
1759                         // JUST GREP FOR "specularscalemod = 1".
1760
1761                         strlcpy(shader.name, com_token, sizeof(shader.name));
1762                         if (!COM_ParseToken_QuakeC(&text, false) || strcasecmp(com_token, "{"))
1763                         {
1764                                 Con_DPrintf("%s parsing error - expected \"{\", found \"%s\"\n", search->filenames[fileindex], com_token);
1765                                 break;
1766                         }
1767                         while (COM_ParseToken_QuakeC(&text, false))
1768                         {
1769                                 if (!strcasecmp(com_token, "}"))
1770                                         break;
1771                                 if (!strcasecmp(com_token, "{"))
1772                                 {
1773                                         static q3shaderinfo_layer_t dummy;
1774                                         if (shader.numlayers < Q3SHADER_MAXLAYERS)
1775                                         {
1776                                                 layer = shader.layers + shader.numlayers++;
1777                                         }
1778                                         else
1779                                         {
1780                                                 // parse and process it anyway, just don't store it (so a map $lightmap or such stuff still is found)
1781                                                 memset(&dummy, 0, sizeof(dummy));
1782                                                 layer = &dummy;
1783                                         }
1784                                         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1785                                         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1786                                         layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1787                                         layer->blendfunc[0] = GL_ONE;
1788                                         layer->blendfunc[1] = GL_ZERO;
1789                                         while (COM_ParseToken_QuakeC(&text, false))
1790                                         {
1791                                                 if (!strcasecmp(com_token, "}"))
1792                                                         break;
1793                                                 if (!strcasecmp(com_token, "\n"))
1794                                                         continue;
1795                                                 numparameters = 0;
1796                                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
1797                                                 {
1798                                                         if (j < TEXTURE_MAXFRAMES + 4)
1799                                                         {
1800                                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
1801                                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
1802                                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
1803                                                                 else
1804                                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
1805                                                                 numparameters = j + 1;
1806                                                         }
1807                                                         if (!COM_ParseToken_QuakeC(&text, true))
1808                                                                 break;
1809                                                 }
1810                                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
1811                                                 //      parameter[j][0] = 0;
1812                                                 if (developer_insane.integer)
1813                                                 {
1814                                                         Con_DPrintf("%s %i: ", shader.name, shader.numlayers - 1);
1815                                                         for (j = 0;j < numparameters;j++)
1816                                                                 Con_DPrintf(" %s", parameter[j]);
1817                                                         Con_DPrint("\n");
1818                                                 }
1819                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "blendfunc"))
1820                                                 {
1821                                                         if (numparameters == 2)
1822                                                         {
1823                                                                 if (!strcasecmp(parameter[1], "add"))
1824                                                                 {
1825                                                                         layer->blendfunc[0] = GL_ONE;
1826                                                                         layer->blendfunc[1] = GL_ONE;
1827                                                                 }
1828                                                                 else if (!strcasecmp(parameter[1], "addalpha"))
1829                                                                 {
1830                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1831                                                                         layer->blendfunc[1] = GL_ONE;
1832                                                                 }
1833                                                                 else if (!strcasecmp(parameter[1], "filter"))
1834                                                                 {
1835                                                                         layer->blendfunc[0] = GL_DST_COLOR;
1836                                                                         layer->blendfunc[1] = GL_ZERO;
1837                                                                 }
1838                                                                 else if (!strcasecmp(parameter[1], "blend"))
1839                                                                 {
1840                                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
1841                                                                         layer->blendfunc[1] = GL_ONE_MINUS_SRC_ALPHA;
1842                                                                 }
1843                                                         }
1844                                                         else if (numparameters == 3)
1845                                                         {
1846                                                                 int k;
1847                                                                 for (k = 0;k < 2;k++)
1848                                                                 {
1849                                                                         if (!strcasecmp(parameter[k+1], "GL_ONE"))
1850                                                                                 layer->blendfunc[k] = GL_ONE;
1851                                                                         else if (!strcasecmp(parameter[k+1], "GL_ZERO"))
1852                                                                                 layer->blendfunc[k] = GL_ZERO;
1853                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_COLOR"))
1854                                                                                 layer->blendfunc[k] = GL_SRC_COLOR;
1855                                                                         else if (!strcasecmp(parameter[k+1], "GL_SRC_ALPHA"))
1856                                                                                 layer->blendfunc[k] = GL_SRC_ALPHA;
1857                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_COLOR"))
1858                                                                                 layer->blendfunc[k] = GL_DST_COLOR;
1859                                                                         else if (!strcasecmp(parameter[k+1], "GL_DST_ALPHA"))
1860                                                                                 layer->blendfunc[k] = GL_DST_ALPHA;
1861                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_COLOR"))
1862                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_COLOR;
1863                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_SRC_ALPHA"))
1864                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_SRC_ALPHA;
1865                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_COLOR"))
1866                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_COLOR;
1867                                                                         else if (!strcasecmp(parameter[k+1], "GL_ONE_MINUS_DST_ALPHA"))
1868                                                                                 layer->blendfunc[k] = GL_ONE_MINUS_DST_ALPHA;
1869                                                                         else
1870                                                                                 layer->blendfunc[k] = GL_ONE; // default in case of parsing error
1871                                                                 }
1872                                                         }
1873                                                 }
1874                                                 if (numparameters >= 2 && !strcasecmp(parameter[0], "alphafunc"))
1875                                                         layer->alphatest = true;
1876                                                 if (numparameters >= 2 && (!strcasecmp(parameter[0], "map") || !strcasecmp(parameter[0], "clampmap")))
1877                                                 {
1878                                                         if (!strcasecmp(parameter[0], "clampmap"))
1879                                                                 layer->clampmap = true;
1880                                                         layer->numframes = 1;
1881                                                         layer->framerate = 1;
1882                                                         layer->texturename = (char**)Mem_ExpandableArray_AllocRecord (
1883                                                                 &q3shader_data->char_ptrs);
1884                                                         layer->texturename[0] = Mem_strdup (q3shaders_mem, parameter[1]);
1885                                                         if (!strcasecmp(parameter[1], "$lightmap"))
1886                                                                 shader.lighting = true;
1887                                                 }
1888                                                 else if (numparameters >= 3 && (!strcasecmp(parameter[0], "animmap") || !strcasecmp(parameter[0], "animclampmap")))
1889                                                 {
1890                                                         int i;
1891                                                         layer->numframes = min(numparameters - 2, TEXTURE_MAXFRAMES);
1892                                                         layer->framerate = atof(parameter[1]);
1893                                                         layer->texturename = (char **) Mem_Alloc (q3shaders_mem, sizeof (char*) * layer->numframes);
1894                                                         for (i = 0;i < layer->numframes;i++)
1895                                                                 layer->texturename[i] = Mem_strdup (q3shaders_mem, parameter[i + 2]);
1896                                                 }
1897                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "rgbgen"))
1898                                                 {
1899                                                         int i;
1900                                                         for (i = 0;i < numparameters - 2 && i < Q3RGBGEN_MAXPARMS;i++)
1901                                                                 layer->rgbgen.parms[i] = atof(parameter[i+2]);
1902                                                              if (!strcasecmp(parameter[1], "identity"))         layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITY;
1903                                                         else if (!strcasecmp(parameter[1], "const"))            layer->rgbgen.rgbgen = Q3RGBGEN_CONST;
1904                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->rgbgen.rgbgen = Q3RGBGEN_ENTITY;
1905                                                         else if (!strcasecmp(parameter[1], "exactvertex"))      layer->rgbgen.rgbgen = Q3RGBGEN_EXACTVERTEX;
1906                                                         else if (!strcasecmp(parameter[1], "identitylighting")) layer->rgbgen.rgbgen = Q3RGBGEN_IDENTITYLIGHTING;
1907                                                         else if (!strcasecmp(parameter[1], "lightingdiffuse"))  layer->rgbgen.rgbgen = Q3RGBGEN_LIGHTINGDIFFUSE;
1908                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSENTITY;
1909                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->rgbgen.rgbgen = Q3RGBGEN_ONEMINUSVERTEX;
1910                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->rgbgen.rgbgen = Q3RGBGEN_VERTEX;
1911                                                         else if (!strcasecmp(parameter[1], "wave"))
1912                                                         {
1913                                                                 layer->rgbgen.rgbgen = Q3RGBGEN_WAVE;
1914                                                                 layer->rgbgen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1915                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1916                                                                         layer->rgbgen.waveparms[i] = atof(parameter[i+3]);
1917                                                         }
1918                                                         else Con_DPrintf("%s parsing warning: unknown rgbgen %s\n", search->filenames[fileindex], parameter[1]);
1919                                                 }
1920                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "alphagen"))
1921                                                 {
1922                                                         int i;
1923                                                         for (i = 0;i < numparameters - 2 && i < Q3ALPHAGEN_MAXPARMS;i++)
1924                                                                 layer->alphagen.parms[i] = atof(parameter[i+2]);
1925                                                              if (!strcasecmp(parameter[1], "identity"))         layer->alphagen.alphagen = Q3ALPHAGEN_IDENTITY;
1926                                                         else if (!strcasecmp(parameter[1], "const"))            layer->alphagen.alphagen = Q3ALPHAGEN_CONST;
1927                                                         else if (!strcasecmp(parameter[1], "entity"))           layer->alphagen.alphagen = Q3ALPHAGEN_ENTITY;
1928                                                         else if (!strcasecmp(parameter[1], "lightingspecular")) layer->alphagen.alphagen = Q3ALPHAGEN_LIGHTINGSPECULAR;
1929                                                         else if (!strcasecmp(parameter[1], "oneminusentity"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSENTITY;
1930                                                         else if (!strcasecmp(parameter[1], "oneminusvertex"))   layer->alphagen.alphagen = Q3ALPHAGEN_ONEMINUSVERTEX;
1931                                                         else if (!strcasecmp(parameter[1], "portal"))           layer->alphagen.alphagen = Q3ALPHAGEN_PORTAL;
1932                                                         else if (!strcasecmp(parameter[1], "vertex"))           layer->alphagen.alphagen = Q3ALPHAGEN_VERTEX;
1933                                                         else if (!strcasecmp(parameter[1], "wave"))
1934                                                         {
1935                                                                 layer->alphagen.alphagen = Q3ALPHAGEN_WAVE;
1936                                                                 layer->alphagen.wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1937                                                                 for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1938                                                                         layer->alphagen.waveparms[i] = atof(parameter[i+3]);
1939                                                         }
1940                                                         else Con_DPrintf("%s parsing warning: unknown alphagen %s\n", search->filenames[fileindex], parameter[1]);
1941                                                 }
1942                                                 else if (numparameters >= 2 && (!strcasecmp(parameter[0], "texgen") || !strcasecmp(parameter[0], "tcgen")))
1943                                                 {
1944                                                         int i;
1945                                                         // observed values: tcgen environment
1946                                                         // no other values have been observed in real shaders
1947                                                         for (i = 0;i < numparameters - 2 && i < Q3TCGEN_MAXPARMS;i++)
1948                                                                 layer->tcgen.parms[i] = atof(parameter[i+2]);
1949                                                              if (!strcasecmp(parameter[1], "base"))        layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1950                                                         else if (!strcasecmp(parameter[1], "texture"))     layer->tcgen.tcgen = Q3TCGEN_TEXTURE;
1951                                                         else if (!strcasecmp(parameter[1], "environment")) layer->tcgen.tcgen = Q3TCGEN_ENVIRONMENT;
1952                                                         else if (!strcasecmp(parameter[1], "lightmap"))    layer->tcgen.tcgen = Q3TCGEN_LIGHTMAP;
1953                                                         else if (!strcasecmp(parameter[1], "vector"))      layer->tcgen.tcgen = Q3TCGEN_VECTOR;
1954                                                         else Con_DPrintf("%s parsing warning: unknown tcgen mode %s\n", search->filenames[fileindex], parameter[1]);
1955                                                 }
1956                                                 else if (numparameters >= 2 && !strcasecmp(parameter[0], "tcmod"))
1957                                                 {
1958                                                         int i, tcmodindex;
1959                                                         // observed values:
1960                                                         // tcmod rotate #
1961                                                         // tcmod scale # #
1962                                                         // tcmod scroll # #
1963                                                         // tcmod stretch sin # # # #
1964                                                         // tcmod stretch triangle # # # #
1965                                                         // tcmod transform # # # # # #
1966                                                         // tcmod turb # # # #
1967                                                         // tcmod turb sin # # # #  (this is bogus)
1968                                                         // no other values have been observed in real shaders
1969                                                         for (tcmodindex = 0;tcmodindex < Q3MAXTCMODS;tcmodindex++)
1970                                                                 if (!layer->tcmods[tcmodindex].tcmod)
1971                                                                         break;
1972                                                         if (tcmodindex < Q3MAXTCMODS)
1973                                                         {
1974                                                                 for (i = 0;i < numparameters - 2 && i < Q3TCMOD_MAXPARMS;i++)
1975                                                                         layer->tcmods[tcmodindex].parms[i] = atof(parameter[i+2]);
1976                                                                          if (!strcasecmp(parameter[1], "entitytranslate")) layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ENTITYTRANSLATE;
1977                                                                 else if (!strcasecmp(parameter[1], "rotate"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_ROTATE;
1978                                                                 else if (!strcasecmp(parameter[1], "scale"))           layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCALE;
1979                                                                 else if (!strcasecmp(parameter[1], "scroll"))          layer->tcmods[tcmodindex].tcmod = Q3TCMOD_SCROLL;
1980                                                                 else if (!strcasecmp(parameter[1], "page"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_PAGE;
1981                                                                 else if (!strcasecmp(parameter[1], "stretch"))
1982                                                                 {
1983                                                                         layer->tcmods[tcmodindex].tcmod = Q3TCMOD_STRETCH;
1984                                                                         layer->tcmods[tcmodindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[2]);
1985                                                                         for (i = 0;i < numparameters - 3 && i < Q3WAVEPARMS;i++)
1986                                                                                 layer->tcmods[tcmodindex].waveparms[i] = atof(parameter[i+3]);
1987                                                                 }
1988                                                                 else if (!strcasecmp(parameter[1], "transform"))       layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TRANSFORM;
1989                                                                 else if (!strcasecmp(parameter[1], "turb"))            layer->tcmods[tcmodindex].tcmod = Q3TCMOD_TURBULENT;
1990                                                                 else Con_DPrintf("%s parsing warning: unknown tcmod mode %s\n", search->filenames[fileindex], parameter[1]);
1991                                                         }
1992                                                         else
1993                                                                 Con_DPrintf("%s parsing warning: too many tcmods on one layer\n", search->filenames[fileindex]);
1994                                                 }
1995                                                 // break out a level if it was a closing brace (not using the character here to not confuse vim)
1996                                                 if (!strcasecmp(com_token, "}"))
1997                                                         break;
1998                                         }
1999                                         if (layer->rgbgen.rgbgen == Q3RGBGEN_LIGHTINGDIFFUSE || layer->rgbgen.rgbgen == Q3RGBGEN_VERTEX)
2000                                                 shader.lighting = true;
2001                                         if (layer->alphagen.alphagen == Q3ALPHAGEN_VERTEX)
2002                                         {
2003                                                 if (layer == shader.layers + 0)
2004                                                 {
2005                                                         // vertex controlled transparency
2006                                                         shader.vertexalpha = true;
2007                                                 }
2008                                                 else
2009                                                 {
2010                                                         // multilayer terrain shader or similar
2011                                                         shader.textureblendalpha = true;
2012                                                         if (mod_q3shader_force_terrain_alphaflag.integer)
2013                                                                 shader.layers[0].texflags |= TEXF_ALPHA;
2014                                                 }
2015                                         }
2016
2017                                         if(mod_q3shader_force_addalpha.integer)
2018                                         {
2019                                                 // for a long while, DP treated GL_ONE GL_ONE as GL_SRC_ALPHA GL_ONE
2020                                                 // this cvar brings back this behaviour
2021                                                 if(layer->blendfunc[0] == GL_ONE && layer->blendfunc[1] == GL_ONE)
2022                                                         layer->blendfunc[0] = GL_SRC_ALPHA;
2023                                         }
2024
2025                                         layer->texflags = 0;
2026                                         if (layer->alphatest)
2027                                                 layer->texflags |= TEXF_ALPHA;
2028                                         switch(layer->blendfunc[0])
2029                                         {
2030                                                 case GL_SRC_ALPHA:
2031                                                 case GL_ONE_MINUS_SRC_ALPHA:
2032                                                         layer->texflags |= TEXF_ALPHA;
2033                                                         break;
2034                                         }
2035                                         switch(layer->blendfunc[1])
2036                                         {
2037                                                 case GL_SRC_ALPHA:
2038                                                 case GL_ONE_MINUS_SRC_ALPHA:
2039                                                         layer->texflags |= TEXF_ALPHA;
2040                                                         break;
2041                                         }
2042                                         if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
2043                                                 layer->texflags |= TEXF_MIPMAP;
2044                                         if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))
2045                                                 layer->texflags |= TEXF_PICMIP | TEXF_COMPRESS;
2046                                         if (layer->clampmap)
2047                                                 layer->texflags |= TEXF_CLAMP;
2048                                         continue;
2049                                 }
2050                                 numparameters = 0;
2051                                 for (j = 0;strcasecmp(com_token, "\n") && strcasecmp(com_token, "}");j++)
2052                                 {
2053                                         if (j < TEXTURE_MAXFRAMES + 4)
2054                                         {
2055                                                 // remap dp_water to dpwater, dp_reflect to dpreflect, etc.
2056                                                 if(j == 0 && !strncasecmp(com_token, "dp_", 3))
2057                                                         dpsnprintf(parameter[j], sizeof(parameter[j]), "dp%s", &com_token[3]);
2058                                                 else
2059                                                         strlcpy(parameter[j], com_token, sizeof(parameter[j]));
2060                                                 numparameters = j + 1;
2061                                         }
2062                                         if (!COM_ParseToken_QuakeC(&text, true))
2063                                                 break;
2064                                 }
2065                                 //for (j = numparameters;j < TEXTURE_MAXFRAMES + 4;j++)
2066                                 //      parameter[j][0] = 0;
2067                                 if (fileindex == 0 && !strcasecmp(com_token, "}"))
2068                                         break;
2069                                 if (developer_insane.integer)
2070                                 {
2071                                         Con_DPrintf("%s: ", shader.name);
2072                                         for (j = 0;j < numparameters;j++)
2073                                                 Con_DPrintf(" %s", parameter[j]);
2074                                         Con_DPrint("\n");
2075                                 }
2076                                 if (numparameters < 1)
2077                                         continue;
2078                                 if (!strcasecmp(parameter[0], "surfaceparm") && numparameters >= 2)
2079                                 {
2080                                         if (!strcasecmp(parameter[1], "alphashadow"))
2081                                                 shader.surfaceparms |= Q3SURFACEPARM_ALPHASHADOW;
2082                                         else if (!strcasecmp(parameter[1], "areaportal"))
2083                                                 shader.surfaceparms |= Q3SURFACEPARM_AREAPORTAL;
2084                                         else if (!strcasecmp(parameter[1], "botclip"))
2085                                                 shader.surfaceparms |= Q3SURFACEPARM_BOTCLIP;
2086                                         else if (!strcasecmp(parameter[1], "clusterportal"))
2087                                                 shader.surfaceparms |= Q3SURFACEPARM_CLUSTERPORTAL;
2088                                         else if (!strcasecmp(parameter[1], "detail"))
2089                                                 shader.surfaceparms |= Q3SURFACEPARM_DETAIL;
2090                                         else if (!strcasecmp(parameter[1], "donotenter"))
2091                                                 shader.surfaceparms |= Q3SURFACEPARM_DONOTENTER;
2092                                         else if (!strcasecmp(parameter[1], "dust"))
2093                                                 shader.surfaceparms |= Q3SURFACEPARM_DUST;
2094                                         else if (!strcasecmp(parameter[1], "hint"))
2095                                                 shader.surfaceparms |= Q3SURFACEPARM_HINT;
2096                                         else if (!strcasecmp(parameter[1], "fog"))
2097                                                 shader.surfaceparms |= Q3SURFACEPARM_FOG;
2098                                         else if (!strcasecmp(parameter[1], "lava"))
2099                                                 shader.surfaceparms |= Q3SURFACEPARM_LAVA;
2100                                         else if (!strcasecmp(parameter[1], "lightfilter"))
2101                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTFILTER;
2102                                         else if (!strcasecmp(parameter[1], "lightgrid"))
2103                                                 shader.surfaceparms |= Q3SURFACEPARM_LIGHTGRID;
2104                                         else if (!strcasecmp(parameter[1], "metalsteps"))
2105                                                 shader.surfaceparms |= Q3SURFACEPARM_METALSTEPS;
2106                                         else if (!strcasecmp(parameter[1], "nodamage"))
2107                                                 shader.surfaceparms |= Q3SURFACEPARM_NODAMAGE;
2108                                         else if (!strcasecmp(parameter[1], "nodlight"))
2109                                                 shader.surfaceparms |= Q3SURFACEPARM_NODLIGHT;
2110                                         else if (!strcasecmp(parameter[1], "nodraw"))
2111                                                 shader.surfaceparms |= Q3SURFACEPARM_NODRAW;
2112                                         else if (!strcasecmp(parameter[1], "nodrop"))
2113                                                 shader.surfaceparms |= Q3SURFACEPARM_NODROP;
2114                                         else if (!strcasecmp(parameter[1], "noimpact"))
2115                                                 shader.surfaceparms |= Q3SURFACEPARM_NOIMPACT;
2116                                         else if (!strcasecmp(parameter[1], "nolightmap"))
2117                                                 shader.surfaceparms |= Q3SURFACEPARM_NOLIGHTMAP;
2118                                         else if (!strcasecmp(parameter[1], "nomarks"))
2119                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMARKS;
2120                                         else if (!strcasecmp(parameter[1], "nomipmaps"))
2121                                                 shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2122                                         else if (!strcasecmp(parameter[1], "nonsolid"))
2123                                                 shader.surfaceparms |= Q3SURFACEPARM_NONSOLID;
2124                                         else if (!strcasecmp(parameter[1], "origin"))
2125                                                 shader.surfaceparms |= Q3SURFACEPARM_ORIGIN;
2126                                         else if (!strcasecmp(parameter[1], "playerclip"))
2127                                                 shader.surfaceparms |= Q3SURFACEPARM_PLAYERCLIP;
2128                                         else if (!strcasecmp(parameter[1], "sky"))
2129                                                 shader.surfaceparms |= Q3SURFACEPARM_SKY;
2130                                         else if (!strcasecmp(parameter[1], "slick"))
2131                                                 shader.surfaceparms |= Q3SURFACEPARM_SLICK;
2132                                         else if (!strcasecmp(parameter[1], "slime"))
2133                                                 shader.surfaceparms |= Q3SURFACEPARM_SLIME;
2134                                         else if (!strcasecmp(parameter[1], "structural"))
2135                                                 shader.surfaceparms |= Q3SURFACEPARM_STRUCTURAL;
2136                                         else if (!strcasecmp(parameter[1], "trans"))
2137                                                 shader.surfaceparms |= Q3SURFACEPARM_TRANS;
2138                                         else if (!strcasecmp(parameter[1], "water"))
2139                                                 shader.surfaceparms |= Q3SURFACEPARM_WATER;
2140                                         else if (!strcasecmp(parameter[1], "pointlight"))
2141                                                 shader.surfaceparms |= Q3SURFACEPARM_POINTLIGHT;
2142                                         else if (!strcasecmp(parameter[1], "antiportal"))
2143                                                 shader.surfaceparms |= Q3SURFACEPARM_ANTIPORTAL;
2144                                         else if (!strcasecmp(parameter[1], "skip"))
2145                                                 ; // shader.surfaceparms |= Q3SURFACEPARM_SKIP; FIXME we don't have enough #defines for this any more, and the engine doesn't need this one anyway
2146                                         else
2147                                         {
2148                                                 // try custom surfaceparms
2149                                                 for (j = 0; j < numcustsurfaceflags; j++)
2150                                                 {
2151                                                         if (!strcasecmp(custsurfaceparmnames[j], parameter[1]))
2152                                                         {
2153                                                                 shader.surfaceflags |= custsurfaceflags[j];
2154                                                                 break;
2155                                                         }
2156                                                 }
2157                                                 // failed all
2158                                                 if (j == numcustsurfaceflags)
2159                                                         Con_DPrintf("%s parsing warning: unknown surfaceparm \"%s\"\n", search->filenames[fileindex], parameter[1]);
2160                                         }
2161                                 }
2162                                 else if (!strcasecmp(parameter[0], "dpshadow"))
2163                                         shader.dpshadow = true;
2164                                 else if (!strcasecmp(parameter[0], "dpnoshadow"))
2165                                         shader.dpnoshadow = true;
2166                                 else if (!strcasecmp(parameter[0], "dpnortlight"))
2167                                         shader.dpnortlight = true;
2168                                 else if (!strcasecmp(parameter[0], "dpreflectcube"))
2169                                         strlcpy(shader.dpreflectcube, parameter[1], sizeof(shader.dpreflectcube));
2170                                 else if (!strcasecmp(parameter[0], "dpmeshcollisions"))
2171                                         shader.dpmeshcollisions = true;
2172                                 // this sets dpshaderkill to true if dpshaderkillifcvarzero was used, and to false if dpnoshaderkillifcvarzero was used
2173                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvarzero")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvarzero")) && numparameters >= 2)
2174                                 {
2175                                         if (Cvar_VariableValue(parameter[1]) == 0.0f)
2176                                                 shader.dpshaderkill = dpshaderkill;
2177                                 }
2178                                 // this sets dpshaderkill to true if dpshaderkillifcvar was used, and to false if dpnoshaderkillifcvar was used
2179                                 else if (((dpshaderkill = !strcasecmp(parameter[0], "dpshaderkillifcvar")) || !strcasecmp(parameter[0], "dpnoshaderkillifcvar")) && numparameters >= 2)
2180                                 {
2181                                         const char *op = NULL;
2182                                         if (numparameters >= 3)
2183                                                 op = parameter[2];
2184                                         if(!op)
2185                                         {
2186                                                 if (Cvar_VariableValue(parameter[1]) != 0.0f)
2187                                                         shader.dpshaderkill = dpshaderkill;
2188                                         }
2189                                         else if (numparameters >= 4 && !strcmp(op, "=="))
2190                                         {
2191                                                 if (Cvar_VariableValue(parameter[1]) == atof(parameter[3]))
2192                                                         shader.dpshaderkill = dpshaderkill;
2193                                         }
2194                                         else if (numparameters >= 4 && !strcmp(op, "!="))
2195                                         {
2196                                                 if (Cvar_VariableValue(parameter[1]) != atof(parameter[3]))
2197                                                         shader.dpshaderkill = dpshaderkill;
2198                                         }
2199                                         else if (numparameters >= 4 && !strcmp(op, ">"))
2200                                         {
2201                                                 if (Cvar_VariableValue(parameter[1]) > atof(parameter[3]))
2202                                                         shader.dpshaderkill = dpshaderkill;
2203                                         }
2204                                         else if (numparameters >= 4 && !strcmp(op, "<"))
2205                                         {
2206                                                 if (Cvar_VariableValue(parameter[1]) < atof(parameter[3]))
2207                                                         shader.dpshaderkill = dpshaderkill;
2208                                         }
2209                                         else if (numparameters >= 4 && !strcmp(op, ">="))
2210                                         {
2211                                                 if (Cvar_VariableValue(parameter[1]) >= atof(parameter[3]))
2212                                                         shader.dpshaderkill = dpshaderkill;
2213                                         }
2214                                         else if (numparameters >= 4 && !strcmp(op, "<="))
2215                                         {
2216                                                 if (Cvar_VariableValue(parameter[1]) <= atof(parameter[3]))
2217                                                         shader.dpshaderkill = dpshaderkill;
2218                                         }
2219                                         else
2220                                         {
2221                                                 Con_DPrintf("%s parsing warning: unknown dpshaderkillifcvar op \"%s\", or not enough arguments\n", search->filenames[fileindex], op);
2222                                         }
2223                                 }
2224                                 else if (!strcasecmp(parameter[0], "sky") && numparameters >= 2)
2225                                 {
2226                                         // some q3 skies don't have the sky parm set
2227                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2228                                         strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2229                                 }
2230                                 else if (!strcasecmp(parameter[0], "skyparms") && numparameters >= 2)
2231                                 {
2232                                         // some q3 skies don't have the sky parm set
2233                                         shader.surfaceparms |= Q3SURFACEPARM_SKY;
2234                                         if (!atoi(parameter[1]) && strcasecmp(parameter[1], "-"))
2235                                                 strlcpy(shader.skyboxname, parameter[1], sizeof(shader.skyboxname));
2236                                 }
2237                                 else if (!strcasecmp(parameter[0], "cull") && numparameters >= 2)
2238                                 {
2239                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "twosided"))
2240                                                 shader.textureflags |= Q3TEXTUREFLAG_TWOSIDED;
2241                                 }
2242                                 else if (!strcasecmp(parameter[0], "nomipmaps"))
2243                                         shader.surfaceparms |= Q3SURFACEPARM_NOMIPMAPS;
2244                                 else if (!strcasecmp(parameter[0], "nopicmip"))
2245                                         shader.textureflags |= Q3TEXTUREFLAG_NOPICMIP;
2246                                 else if (!strcasecmp(parameter[0], "polygonoffset"))
2247                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2248                                 else if (!strcasecmp(parameter[0], "dppolygonoffset"))
2249                                 {
2250                                         shader.textureflags |= Q3TEXTUREFLAG_POLYGONOFFSET;
2251                                         if(numparameters >= 2)
2252                                         {
2253                                                 shader.biaspolygonfactor = atof(parameter[1]);
2254                                                 if(numparameters >= 3)
2255                                                         shader.biaspolygonoffset = atof(parameter[2]);
2256                                                 else
2257                                                         shader.biaspolygonoffset = 0;
2258                                         }
2259                                 }
2260                                 else if (!strcasecmp(parameter[0], "dptransparentsort") && numparameters >= 2)
2261                                 {
2262                                         shader.textureflags |= Q3TEXTUREFLAG_TRANSPARENTSORT;
2263                                         if (!strcasecmp(parameter[1], "sky"))
2264                                                 shader.transparentsort = TRANSPARENTSORT_SKY;
2265                                         else if (!strcasecmp(parameter[1], "distance"))
2266                                                 shader.transparentsort = TRANSPARENTSORT_DISTANCE;
2267                                         else if (!strcasecmp(parameter[1], "hud"))
2268                                                 shader.transparentsort = TRANSPARENTSORT_HUD;
2269                                         else
2270                                                 Con_DPrintf("%s parsing warning: unknown dptransparentsort category \"%s\", or not enough arguments\n", search->filenames[fileindex], parameter[1]);
2271                                 }
2272                                 else if (!strcasecmp(parameter[0], "dprefract") && numparameters >= 5)
2273                                 {
2274                                         shader.textureflags |= Q3TEXTUREFLAG_REFRACTION;
2275                                         shader.refractfactor = atof(parameter[1]);
2276                                         Vector4Set(shader.refractcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), 1);
2277                                 }
2278                                 else if (!strcasecmp(parameter[0], "dpreflect") && numparameters >= 6)
2279                                 {
2280                                         shader.textureflags |= Q3TEXTUREFLAG_REFLECTION;
2281                                         shader.reflectfactor = atof(parameter[1]);
2282                                         Vector4Set(shader.reflectcolor4f, atof(parameter[2]), atof(parameter[3]), atof(parameter[4]), atof(parameter[5]));
2283                                 }
2284                                 else if (!strcasecmp(parameter[0], "dpcamera"))
2285                                 {
2286                                         shader.textureflags |= Q3TEXTUREFLAG_CAMERA;
2287                                 }
2288                                 else if (!strcasecmp(parameter[0], "dpwater") && numparameters >= 12)
2289                                 {
2290                                         shader.textureflags |= Q3TEXTUREFLAG_WATERSHADER;
2291                                         shader.reflectmin = atof(parameter[1]);
2292                                         shader.reflectmax = atof(parameter[2]);
2293                                         shader.refractfactor = atof(parameter[3]);
2294                                         shader.reflectfactor = atof(parameter[4]);
2295                                         Vector4Set(shader.refractcolor4f, atof(parameter[5]), atof(parameter[6]), atof(parameter[7]), 1);
2296                                         Vector4Set(shader.reflectcolor4f, atof(parameter[8]), atof(parameter[9]), atof(parameter[10]), 1);
2297                                         shader.r_water_wateralpha = atof(parameter[11]);
2298                                 }
2299                                 else if (!strcasecmp(parameter[0], "dpwaterscroll") && numparameters >= 3)
2300                                 {
2301                                         shader.r_water_waterscroll[0] = 1/atof(parameter[1]);
2302                                         shader.r_water_waterscroll[1] = 1/atof(parameter[2]);
2303                                 }
2304                                 else if (!strcasecmp(parameter[0], "dpglossintensitymod") && numparameters >= 2)
2305                                 {
2306                                         shader.specularscalemod = atof(parameter[1]);
2307                                 }
2308                                 else if (!strcasecmp(parameter[0], "dpglossexponentmod") && numparameters >= 2)
2309                                 {
2310                                         shader.specularpowermod = atof(parameter[1]);
2311                                 }
2312                                 else if (!strcasecmp(parameter[0], "dprtlightambient") && numparameters >= 2)
2313                                 {
2314                                         shader.rtlightambient = atof(parameter[1]);
2315                                 }
2316                                 else if (!strcasecmp(parameter[0], "dpoffsetmapping") && numparameters >= 2)
2317                                 {
2318                                         if (!strcasecmp(parameter[1], "disable") || !strcasecmp(parameter[1], "none") || !strcasecmp(parameter[1], "off"))
2319                                                 shader.offsetmapping = OFFSETMAPPING_OFF;
2320                                         else if (!strcasecmp(parameter[1], "default") || !strcasecmp(parameter[1], "normal"))
2321                                                 shader.offsetmapping = OFFSETMAPPING_DEFAULT;
2322                                         else if (!strcasecmp(parameter[1], "linear"))
2323                                                 shader.offsetmapping = OFFSETMAPPING_LINEAR;
2324                                         else if (!strcasecmp(parameter[1], "relief"))
2325                                                 shader.offsetmapping = OFFSETMAPPING_RELIEF;
2326                                         if (numparameters >= 3)
2327                                                 shader.offsetscale = atof(parameter[2]);
2328                                         if (numparameters >= 5)
2329                                         {
2330                                                 if(!strcasecmp(parameter[3], "bias"))
2331                                                         shader.offsetbias = atof(parameter[4]);
2332                                                 else if(!strcasecmp(parameter[3], "match"))
2333                                                         shader.offsetbias = 1.0f - atof(parameter[4]);
2334                                                 else if(!strcasecmp(parameter[3], "match8"))
2335                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 255.0f;
2336                                                 else if(!strcasecmp(parameter[3], "match16"))
2337                                                         shader.offsetbias = 1.0f - atof(parameter[4]) / 65535.0f;
2338                                         }
2339                                 }
2340                                 else if (!strcasecmp(parameter[0], "deformvertexes") && numparameters >= 2)
2341                                 {
2342                                         int i, deformindex;
2343                                         for (deformindex = 0;deformindex < Q3MAXDEFORMS;deformindex++)
2344                                                 if (!shader.deforms[deformindex].deform)
2345                                                         break;
2346                                         if (deformindex < Q3MAXDEFORMS)
2347                                         {
2348                                                 for (i = 0;i < numparameters - 2 && i < Q3DEFORM_MAXPARMS;i++)
2349                                                         shader.deforms[deformindex].parms[i] = atof(parameter[i+2]);
2350                                                      if (!strcasecmp(parameter[1], "projectionshadow")) shader.deforms[deformindex].deform = Q3DEFORM_PROJECTIONSHADOW;
2351                                                 else if (!strcasecmp(parameter[1], "autosprite"      )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE;
2352                                                 else if (!strcasecmp(parameter[1], "autosprite2"     )) shader.deforms[deformindex].deform = Q3DEFORM_AUTOSPRITE2;
2353                                                 else if (!strcasecmp(parameter[1], "text0"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT0;
2354                                                 else if (!strcasecmp(parameter[1], "text1"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT1;
2355                                                 else if (!strcasecmp(parameter[1], "text2"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT2;
2356                                                 else if (!strcasecmp(parameter[1], "text3"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT3;
2357                                                 else if (!strcasecmp(parameter[1], "text4"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT4;
2358                                                 else if (!strcasecmp(parameter[1], "text5"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT5;
2359                                                 else if (!strcasecmp(parameter[1], "text6"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT6;
2360                                                 else if (!strcasecmp(parameter[1], "text7"           )) shader.deforms[deformindex].deform = Q3DEFORM_TEXT7;
2361                                                 else if (!strcasecmp(parameter[1], "bulge"           )) shader.deforms[deformindex].deform = Q3DEFORM_BULGE;
2362                                                 else if (!strcasecmp(parameter[1], "normal"          )) shader.deforms[deformindex].deform = Q3DEFORM_NORMAL;
2363                                                 else if (!strcasecmp(parameter[1], "wave"            ))
2364                                                 {
2365                                                         shader.deforms[deformindex].deform = Q3DEFORM_WAVE;
2366                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[3]);
2367                                                         for (i = 0;i < numparameters - 4 && i < Q3WAVEPARMS;i++)
2368                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+4]);
2369                                                 }
2370                                                 else if (!strcasecmp(parameter[1], "move"            ))
2371                                                 {
2372                                                         shader.deforms[deformindex].deform = Q3DEFORM_MOVE;
2373                                                         shader.deforms[deformindex].wavefunc = Mod_LoadQ3Shaders_EnumerateWaveFunc(parameter[5]);
2374                                                         for (i = 0;i < numparameters - 6 && i < Q3WAVEPARMS;i++)
2375                                                                 shader.deforms[deformindex].waveparms[i] = atof(parameter[i+6]);
2376                                                 }
2377                                         }
2378                                 }
2379                         }
2380                         // hide this shader if a cvar said it should be killed
2381                         if (shader.dpshaderkill)
2382                                 shader.numlayers = 0;
2383                         // pick the primary layer to render with
2384                         if (shader.numlayers)
2385                         {
2386                                 shader.backgroundlayer = -1;
2387                                 shader.primarylayer = 0;
2388                                 // if lightmap comes first this is definitely an ordinary texture
2389                                 // if the first two layers have the correct blendfuncs and use vertex alpha, it is a blended terrain shader
2390                                 if ((shader.layers[shader.primarylayer].texturename != NULL)
2391                                   && !strcasecmp(shader.layers[shader.primarylayer].texturename[0], "$lightmap"))
2392                                 {
2393                                         shader.backgroundlayer = -1;
2394                                         shader.primarylayer = 1;
2395                                 }
2396                                 else if (shader.numlayers >= 2
2397                                 &&   shader.layers[1].alphagen.alphagen == Q3ALPHAGEN_VERTEX
2398                                 &&  (shader.layers[0].blendfunc[0] == GL_ONE       && shader.layers[0].blendfunc[1] == GL_ZERO                && !shader.layers[0].alphatest)
2399                                 && ((shader.layers[1].blendfunc[0] == GL_SRC_ALPHA && shader.layers[1].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2400                                 ||  (shader.layers[1].blendfunc[0] == GL_ONE       && shader.layers[1].blendfunc[1] == GL_ZERO                &&  shader.layers[1].alphatest)))
2401                                 {
2402                                         // terrain blending or other effects
2403                                         shader.backgroundlayer = 0;
2404                                         shader.primarylayer = 1;
2405                                 }
2406                         }
2407                         // fix up multiple reflection types
2408                         if(shader.textureflags & Q3TEXTUREFLAG_WATERSHADER)
2409                                 shader.textureflags &= ~(Q3TEXTUREFLAG_REFRACTION | Q3TEXTUREFLAG_REFLECTION | Q3TEXTUREFLAG_CAMERA);
2410
2411                         Q3Shader_AddToHash (&shader);
2412                 }
2413                 Mem_Free(f);
2414         }
2415         FS_FreeSearch(search);
2416         // free custinfoparm values
2417         for (j = 0; j < numcustsurfaceflags; j++)
2418                 Mem_Free(custsurfaceparmnames[j]);
2419 }
2420
2421 q3shaderinfo_t *Mod_LookupQ3Shader(const char *name)
2422 {
2423         unsigned short hash;
2424         q3shader_hash_entry_t* entry;
2425         if (!q3shaders_mem)
2426                 Mod_LoadQ3Shaders();
2427         hash = CRC_Block_CaseInsensitive ((const unsigned char *)name, strlen (name));
2428         entry = q3shader_data->hash + (hash % Q3SHADER_HASH_SIZE);
2429         while (entry != NULL)
2430         {
2431                 if (strcasecmp (entry->shader.name, name) == 0)
2432                         return &entry->shader;
2433                 entry = entry->chain;
2434         }
2435         return NULL;
2436 }
2437
2438 qboolean Mod_LoadTextureFromQ3Shader(texture_t *texture, const char *name, qboolean warnmissing, qboolean fallback, int defaulttexflags)
2439 {
2440         int j;
2441         int texflagsmask, texflagsor;
2442         qboolean success = true;
2443         q3shaderinfo_t *shader;
2444         if (!name)
2445                 name = "";
2446         strlcpy(texture->name, name, sizeof(texture->name));
2447         texture->basealpha = 1.0f;
2448         shader = name[0] ? Mod_LookupQ3Shader(name) : NULL;
2449
2450         texflagsmask = ~0;
2451         if(!(defaulttexflags & TEXF_PICMIP))
2452                 texflagsmask &= ~TEXF_PICMIP;
2453         if(!(defaulttexflags & TEXF_COMPRESS))
2454                 texflagsmask &= ~TEXF_COMPRESS;
2455         texflagsor = 0;
2456         if(defaulttexflags & TEXF_ISWORLD)
2457                 texflagsor |= TEXF_ISWORLD;
2458         if(defaulttexflags & TEXF_ISSPRITE)
2459                 texflagsor |= TEXF_ISSPRITE;
2460         // unless later loaded from the shader
2461         texture->offsetmapping = (mod_noshader_default_offsetmapping.value) ? OFFSETMAPPING_DEFAULT : OFFSETMAPPING_OFF;
2462         texture->offsetscale = 1;
2463         texture->offsetbias = 0;
2464         texture->specularscalemod = 1;
2465         texture->specularpowermod = 1;
2466         texture->rtlightambient = 0;
2467         texture->transparentsort = TRANSPARENTSORT_DISTANCE;
2468         // WHEN ADDING DEFAULTS HERE, REMEMBER TO PUT DEFAULTS IN ALL LOADERS
2469         // JUST GREP FOR "specularscalemod = 1".
2470
2471         if (shader)
2472         {
2473                 if (developer_loading.integer)
2474                         Con_Printf("%s: loaded shader for %s\n", loadmodel->name, name);
2475
2476                 // allow disabling of picmip or compression by defaulttexflags
2477                 texture->textureflags = (shader->textureflags & texflagsmask) | texflagsor;
2478
2479                 if (shader->surfaceparms & Q3SURFACEPARM_SKY)
2480                 {
2481                         texture->basematerialflags = MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2482                         if (shader->skyboxname[0])
2483                         {
2484                                 // quake3 seems to append a _ to the skybox name, so this must do so as well
2485                                 dpsnprintf(loadmodel->brush.skybox, sizeof(loadmodel->brush.skybox), "%s_", shader->skyboxname);
2486                         }
2487                 }
2488                 else if ((texture->surfaceflags & Q3SURFACEFLAG_NODRAW) || shader->numlayers == 0)
2489                         texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2490                 else
2491                         texture->basematerialflags = MATERIALFLAG_WALL;
2492
2493                 if (shader->layers[0].alphatest)
2494                         texture->basematerialflags |= MATERIALFLAG_ALPHATEST | MATERIALFLAG_NOSHADOW;
2495                 if (shader->textureflags & Q3TEXTUREFLAG_TWOSIDED)
2496                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW | MATERIALFLAG_NOCULLFACE;
2497                 if (shader->textureflags & Q3TEXTUREFLAG_POLYGONOFFSET)
2498                 {
2499                         texture->biaspolygonoffset += shader->biaspolygonoffset;
2500                         texture->biaspolygonfactor += shader->biaspolygonfactor;
2501                 }
2502                 if (shader->textureflags & Q3TEXTUREFLAG_REFRACTION)
2503                         texture->basematerialflags |= MATERIALFLAG_REFRACTION;
2504                 if (shader->textureflags & Q3TEXTUREFLAG_REFLECTION)
2505                         texture->basematerialflags |= MATERIALFLAG_REFLECTION;
2506                 if (shader->textureflags & Q3TEXTUREFLAG_WATERSHADER)
2507                         texture->basematerialflags |= MATERIALFLAG_WATERSHADER;
2508                 if (shader->textureflags & Q3TEXTUREFLAG_CAMERA)
2509                         texture->basematerialflags |= MATERIALFLAG_CAMERA;
2510                 texture->customblendfunc[0] = GL_ONE;
2511                 texture->customblendfunc[1] = GL_ZERO;
2512                 texture->transparentsort = shader->transparentsort;
2513                 if (shader->numlayers > 0)
2514                 {
2515                         texture->customblendfunc[0] = shader->layers[0].blendfunc[0];
2516                         texture->customblendfunc[1] = shader->layers[0].blendfunc[1];
2517 /*
2518 Q3 shader blendfuncs actually used in the game (* = supported by DP)
2519 * additive               GL_ONE GL_ONE
2520 additive weird         GL_ONE GL_SRC_ALPHA
2521 additive weird 2       GL_ONE GL_ONE_MINUS_SRC_ALPHA
2522 * alpha                  GL_SRC_ALPHA GL_ONE_MINUS_SRC_ALPHA
2523 alpha inverse          GL_ONE_MINUS_SRC_ALPHA GL_SRC_ALPHA
2524 brighten               GL_DST_COLOR GL_ONE
2525 brighten               GL_ONE GL_SRC_COLOR
2526 brighten weird         GL_DST_COLOR GL_ONE_MINUS_DST_ALPHA
2527 brighten weird 2       GL_DST_COLOR GL_SRC_ALPHA
2528 * modulate               GL_DST_COLOR GL_ZERO
2529 * modulate               GL_ZERO GL_SRC_COLOR
2530 modulate inverse       GL_ZERO GL_ONE_MINUS_SRC_COLOR
2531 modulate inverse alpha GL_ZERO GL_SRC_ALPHA
2532 modulate weird inverse GL_ONE_MINUS_DST_COLOR GL_ZERO
2533 * modulate x2            GL_DST_COLOR GL_SRC_COLOR
2534 * no blend               GL_ONE GL_ZERO
2535 nothing                GL_ZERO GL_ONE
2536 */
2537                         // if not opaque, figure out what blendfunc to use
2538                         if (shader->layers[0].blendfunc[0] != GL_ONE || shader->layers[0].blendfunc[1] != GL_ZERO)
2539                         {
2540                                 if (shader->layers[0].blendfunc[0] == GL_ONE && shader->layers[0].blendfunc[1] == GL_ONE)
2541                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2542                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE)
2543                                         texture->basematerialflags |= MATERIALFLAG_ADD | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2544                                 else if (shader->layers[0].blendfunc[0] == GL_SRC_ALPHA && shader->layers[0].blendfunc[1] == GL_ONE_MINUS_SRC_ALPHA)
2545                                         texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2546                                 else
2547                                         texture->basematerialflags |= MATERIALFLAG_CUSTOMBLEND | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2548                         }
2549                 }
2550                 if (!shader->lighting)
2551                         texture->basematerialflags |= MATERIALFLAG_FULLBRIGHT;
2552                 if (shader->primarylayer >= 0)
2553                 {
2554                         q3shaderinfo_layer_t* primarylayer = shader->layers + shader->primarylayer;
2555                         // copy over many primarylayer parameters
2556                         texture->rgbgen = primarylayer->rgbgen;
2557                         texture->alphagen = primarylayer->alphagen;
2558                         texture->tcgen = primarylayer->tcgen;
2559                         memcpy(texture->tcmods, primarylayer->tcmods, sizeof(texture->tcmods));
2560                         // load the textures
2561                         texture->numskinframes = primarylayer->numframes;
2562                         texture->skinframerate = primarylayer->framerate;
2563                         for (j = 0;j < primarylayer->numframes;j++)
2564                         {
2565                                 if(cls.state == ca_dedicated)
2566                                 {
2567                                         texture->skinframes[j] = NULL;
2568                                 }
2569                                 else if (!(texture->skinframes[j] = R_SkinFrame_LoadExternal(primarylayer->texturename[j], (primarylayer->texflags & texflagsmask) | texflagsor, false)))
2570                                 {
2571                                         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);
2572                                         texture->skinframes[j] = R_SkinFrame_LoadMissing();
2573                                 }
2574                         }
2575                 }
2576                 if (shader->backgroundlayer >= 0)
2577                 {
2578                         q3shaderinfo_layer_t* backgroundlayer = shader->layers + shader->backgroundlayer;
2579                         // copy over one secondarylayer parameter
2580                         memcpy(texture->backgroundtcmods, backgroundlayer->tcmods, sizeof(texture->backgroundtcmods));
2581                         // load the textures
2582                         texture->backgroundnumskinframes = backgroundlayer->numframes;
2583                         texture->backgroundskinframerate = backgroundlayer->framerate;
2584                         for (j = 0;j < backgroundlayer->numframes;j++)
2585                         {
2586                                 if(cls.state == ca_dedicated)
2587                                 {
2588                                         texture->skinframes[j] = NULL;
2589                                 }
2590                                 else if (!(texture->backgroundskinframes[j] = R_SkinFrame_LoadExternal(backgroundlayer->texturename[j], (backgroundlayer->texflags & texflagsmask) | texflagsor, false)))
2591                                 {
2592                                         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);
2593                                         texture->backgroundskinframes[j] = R_SkinFrame_LoadMissing();
2594                                 }
2595                         }
2596                 }
2597                 if (shader->dpshadow)
2598                         texture->basematerialflags &= ~MATERIALFLAG_NOSHADOW;
2599                 if (shader->dpnoshadow)
2600                         texture->basematerialflags |= MATERIALFLAG_NOSHADOW;
2601                 if (shader->dpnortlight)
2602                         texture->basematerialflags |= MATERIALFLAG_NORTLIGHT;
2603                 if (shader->vertexalpha)
2604                         texture->basematerialflags |= MATERIALFLAG_ALPHAGEN_VERTEX;
2605                 memcpy(texture->deforms, shader->deforms, sizeof(texture->deforms));
2606                 texture->reflectmin = shader->reflectmin;
2607                 texture->reflectmax = shader->reflectmax;
2608                 texture->refractfactor = shader->refractfactor;
2609                 Vector4Copy(shader->refractcolor4f, texture->refractcolor4f);
2610                 texture->reflectfactor = shader->reflectfactor;
2611                 Vector4Copy(shader->reflectcolor4f, texture->reflectcolor4f);
2612                 texture->r_water_wateralpha = shader->r_water_wateralpha;
2613                 Vector2Copy(shader->r_water_waterscroll, texture->r_water_waterscroll);
2614                 texture->offsetmapping = shader->offsetmapping;
2615                 texture->offsetscale = shader->offsetscale;
2616                 texture->offsetbias = shader->offsetbias;
2617                 texture->specularscalemod = shader->specularscalemod;
2618                 texture->specularpowermod = shader->specularpowermod;
2619                 texture->rtlightambient = shader->rtlightambient;
2620                 if (shader->dpreflectcube[0])
2621                         texture->reflectcubetexture = R_GetCubemap(shader->dpreflectcube);
2622
2623                 // set up default supercontents (on q3bsp this is overridden by the q3bsp loader)
2624                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2625                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents  = SUPERCONTENTS_LAVA         ;
2626                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents  = SUPERCONTENTS_SLIME        ;
2627                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents  = SUPERCONTENTS_WATER        ;
2628                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents  = 0                          ;
2629                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents  = SUPERCONTENTS_PLAYERCLIP   ;
2630                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents  = SUPERCONTENTS_MONSTERCLIP  ;
2631                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents  = SUPERCONTENTS_SKY          ;
2632
2633         //      if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->supercontents |= SUPERCONTENTS_ALPHASHADOW  ;
2634         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->supercontents |= SUPERCONTENTS_AREAPORTAL   ;
2635         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->supercontents |= SUPERCONTENTS_CLUSTERPORTAL;
2636         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->supercontents |= SUPERCONTENTS_DETAIL       ;
2637                 if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->supercontents |= SUPERCONTENTS_DONOTENTER   ;
2638         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->supercontents |= SUPERCONTENTS_FOG          ;
2639                 if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->supercontents |= SUPERCONTENTS_LAVA         ;
2640         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->supercontents |= SUPERCONTENTS_LIGHTFILTER  ;
2641         //      if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->supercontents |= SUPERCONTENTS_METALSTEPS   ;
2642         //      if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->supercontents |= SUPERCONTENTS_NODAMAGE     ;
2643         //      if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->supercontents |= SUPERCONTENTS_NODLIGHT     ;
2644         //      if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->supercontents |= SUPERCONTENTS_NODRAW       ;
2645                 if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->supercontents |= SUPERCONTENTS_NODROP       ;
2646         //      if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->supercontents |= SUPERCONTENTS_NOIMPACT     ;
2647         //      if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->supercontents |= SUPERCONTENTS_NOLIGHTMAP   ;
2648         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->supercontents |= SUPERCONTENTS_NOMARKS      ;
2649         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->supercontents |= SUPERCONTENTS_NOMIPMAPS    ;
2650                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->supercontents &=~SUPERCONTENTS_SOLID        ;
2651         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->supercontents |= SUPERCONTENTS_ORIGIN       ;
2652                 if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->supercontents |= SUPERCONTENTS_PLAYERCLIP   ;
2653                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->supercontents |= SUPERCONTENTS_SKY          ;
2654         //      if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->supercontents |= SUPERCONTENTS_SLICK        ;
2655                 if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->supercontents |= SUPERCONTENTS_SLIME        ;
2656         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->supercontents |= SUPERCONTENTS_STRUCTURAL   ;
2657         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->supercontents |= SUPERCONTENTS_TRANS        ;
2658                 if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->supercontents |= SUPERCONTENTS_WATER        ;
2659         //      if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->supercontents |= SUPERCONTENTS_POINTLIGHT   ;
2660         //      if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->supercontents |= SUPERCONTENTS_HINT         ;
2661         //      if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->supercontents |= SUPERCONTENTS_DUST         ;
2662                 if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->supercontents |= SUPERCONTENTS_BOTCLIP      | SUPERCONTENTS_MONSTERCLIP;
2663         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->supercontents |= SUPERCONTENTS_LIGHTGRID    ;
2664         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->supercontents |= SUPERCONTENTS_ANTIPORTAL   ;
2665
2666                 texture->surfaceflags = shader->surfaceflags;
2667                 if (shader->surfaceparms & Q3SURFACEPARM_ALPHASHADOW  ) texture->surfaceflags |= Q3SURFACEFLAG_ALPHASHADOW  ;
2668         //      if (shader->surfaceparms & Q3SURFACEPARM_AREAPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_AREAPORTAL   ;
2669         //      if (shader->surfaceparms & Q3SURFACEPARM_CLUSTERPORTAL) texture->surfaceflags |= Q3SURFACEFLAG_CLUSTERPORTAL;
2670         //      if (shader->surfaceparms & Q3SURFACEPARM_DETAIL       ) texture->surfaceflags |= Q3SURFACEFLAG_DETAIL       ;
2671         //      if (shader->surfaceparms & Q3SURFACEPARM_DONOTENTER   ) texture->surfaceflags |= Q3SURFACEFLAG_DONOTENTER   ;
2672         //      if (shader->surfaceparms & Q3SURFACEPARM_FOG          ) texture->surfaceflags |= Q3SURFACEFLAG_FOG          ;
2673         //      if (shader->surfaceparms & Q3SURFACEPARM_LAVA         ) texture->surfaceflags |= Q3SURFACEFLAG_LAVA         ;
2674                 if (shader->surfaceparms & Q3SURFACEPARM_LIGHTFILTER  ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTFILTER  ;
2675                 if (shader->surfaceparms & Q3SURFACEPARM_METALSTEPS   ) texture->surfaceflags |= Q3SURFACEFLAG_METALSTEPS   ;
2676                 if (shader->surfaceparms & Q3SURFACEPARM_NODAMAGE     ) texture->surfaceflags |= Q3SURFACEFLAG_NODAMAGE     ;
2677                 if (shader->surfaceparms & Q3SURFACEPARM_NODLIGHT     ) texture->surfaceflags |= Q3SURFACEFLAG_NODLIGHT     ;
2678                 if (shader->surfaceparms & Q3SURFACEPARM_NODRAW       ) texture->surfaceflags |= Q3SURFACEFLAG_NODRAW       ;
2679         //      if (shader->surfaceparms & Q3SURFACEPARM_NODROP       ) texture->surfaceflags |= Q3SURFACEFLAG_NODROP       ;
2680                 if (shader->surfaceparms & Q3SURFACEPARM_NOIMPACT     ) texture->surfaceflags |= Q3SURFACEFLAG_NOIMPACT     ;
2681                 if (shader->surfaceparms & Q3SURFACEPARM_NOLIGHTMAP   ) texture->surfaceflags |= Q3SURFACEFLAG_NOLIGHTMAP   ;
2682                 if (shader->surfaceparms & Q3SURFACEPARM_NOMARKS      ) texture->surfaceflags |= Q3SURFACEFLAG_NOMARKS      ;
2683         //      if (shader->surfaceparms & Q3SURFACEPARM_NOMIPMAPS    ) texture->surfaceflags |= Q3SURFACEFLAG_NOMIPMAPS    ;
2684                 if (shader->surfaceparms & Q3SURFACEPARM_NONSOLID     ) texture->surfaceflags |= Q3SURFACEFLAG_NONSOLID     ;
2685         //      if (shader->surfaceparms & Q3SURFACEPARM_ORIGIN       ) texture->surfaceflags |= Q3SURFACEFLAG_ORIGIN       ;
2686         //      if (shader->surfaceparms & Q3SURFACEPARM_PLAYERCLIP   ) texture->surfaceflags |= Q3SURFACEFLAG_PLAYERCLIP   ;
2687                 if (shader->surfaceparms & Q3SURFACEPARM_SKY          ) texture->surfaceflags |= Q3SURFACEFLAG_SKY          ;
2688                 if (shader->surfaceparms & Q3SURFACEPARM_SLICK        ) texture->surfaceflags |= Q3SURFACEFLAG_SLICK        ;
2689         //      if (shader->surfaceparms & Q3SURFACEPARM_SLIME        ) texture->surfaceflags |= Q3SURFACEFLAG_SLIME        ;
2690         //      if (shader->surfaceparms & Q3SURFACEPARM_STRUCTURAL   ) texture->surfaceflags |= Q3SURFACEFLAG_STRUCTURAL   ;
2691         //      if (shader->surfaceparms & Q3SURFACEPARM_TRANS        ) texture->surfaceflags |= Q3SURFACEFLAG_TRANS        ;
2692         //      if (shader->surfaceparms & Q3SURFACEPARM_WATER        ) texture->surfaceflags |= Q3SURFACEFLAG_WATER        ;
2693                 if (shader->surfaceparms & Q3SURFACEPARM_POINTLIGHT   ) texture->surfaceflags |= Q3SURFACEFLAG_POINTLIGHT   ;
2694                 if (shader->surfaceparms & Q3SURFACEPARM_HINT         ) texture->surfaceflags |= Q3SURFACEFLAG_HINT         ;
2695                 if (shader->surfaceparms & Q3SURFACEPARM_DUST         ) texture->surfaceflags |= Q3SURFACEFLAG_DUST         ;
2696         //      if (shader->surfaceparms & Q3SURFACEPARM_BOTCLIP      ) texture->surfaceflags |= Q3SURFACEFLAG_BOTCLIP      ;
2697         //      if (shader->surfaceparms & Q3SURFACEPARM_LIGHTGRID    ) texture->surfaceflags |= Q3SURFACEFLAG_LIGHTGRID    ;
2698         //      if (shader->surfaceparms & Q3SURFACEPARM_ANTIPORTAL   ) texture->surfaceflags |= Q3SURFACEFLAG_ANTIPORTAL   ;
2699
2700                 if (shader->dpmeshcollisions)
2701                         texture->basematerialflags |= MATERIALFLAG_MESHCOLLISIONS;
2702                 if (shader->dpshaderkill && developer_extra.integer)
2703                         Con_DPrintf("^1%s:^7 killing shader ^3\"%s\" because of cvar\n", loadmodel->name, name);
2704         }
2705         else if (!strcmp(texture->name, "noshader") || !texture->name[0])
2706         {
2707                 if (developer_extra.integer)
2708                         Con_DPrintf("^1%s:^7 using fallback noshader material for ^3\"%s\"\n", loadmodel->name, name);
2709                 texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2710         }
2711         else if (!strcmp(texture->name, "common/nodraw") || !strcmp(texture->name, "textures/common/nodraw"))
2712         {
2713                 if (developer_extra.integer)
2714                         Con_DPrintf("^1%s:^7 using fallback nodraw material for ^3\"%s\"\n", loadmodel->name, name);
2715                 texture->basematerialflags = MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2716                 texture->supercontents = SUPERCONTENTS_SOLID;
2717         }
2718         else
2719         {
2720                 if (developer_extra.integer)
2721                         Con_DPrintf("^1%s:^7 No shader found for texture ^3\"%s\"\n", loadmodel->name, texture->name);
2722                 if (texture->surfaceflags & Q3SURFACEFLAG_NODRAW)
2723                 {
2724                         texture->basematerialflags |= MATERIALFLAG_NODRAW | MATERIALFLAG_NOSHADOW;
2725                         texture->supercontents = SUPERCONTENTS_SOLID;
2726                 }
2727                 else if (texture->surfaceflags & Q3SURFACEFLAG_SKY)
2728                 {
2729                         texture->basematerialflags |= MATERIALFLAG_SKY | MATERIALFLAG_NOSHADOW;
2730                         texture->supercontents = SUPERCONTENTS_SKY;
2731                 }
2732                 else
2733                 {
2734                         texture->basematerialflags |= MATERIALFLAG_WALL;
2735                         texture->supercontents = SUPERCONTENTS_SOLID | SUPERCONTENTS_OPAQUE;
2736                 }
2737                 texture->numskinframes = 1;
2738                 if(cls.state == ca_dedicated)
2739                 {
2740                         texture->skinframes[0] = NULL;
2741                         success = false;
2742                 }
2743                 else
2744                 {
2745                         if (fallback)
2746                         {
2747                                 if ((texture->skinframes[0] = R_SkinFrame_LoadExternal(texture->name, defaulttexflags, false)))
2748                                 {
2749                                         if(texture->skinframes[0]->hasalpha)
2750                                                 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_NOSHADOW;
2751                                         if (texture->q2contents)
2752                                                 texture->supercontents = Mod_Q2BSP_SuperContentsFromNativeContents(loadmodel, texture->q2contents);
2753                                 }
2754                                 else
2755                                         success = false;
2756                         }
2757                         else
2758                                 success = false;
2759                         if (!success && warnmissing)
2760                                 Con_Printf("^1%s:^7 could not load texture ^3\"%s\"\n", loadmodel->name, texture->name);
2761                 }
2762         }
2763         // init the animation variables
2764         texture->currentframe = texture;
2765         if (texture->numskinframes < 1)
2766                 texture->numskinframes = 1;
2767         if (!texture->skinframes[0])
2768                 texture->skinframes[0] = R_SkinFrame_LoadMissing();
2769         texture->currentskinframe = texture->skinframes[0];
2770         texture->backgroundcurrentskinframe = texture->backgroundskinframes[0];
2771         return success;
2772 }
2773
2774 skinfile_t *Mod_LoadSkinFiles(void)
2775 {
2776         int i, words, line, wordsoverflow;
2777         char *text;
2778         const char *data;
2779         skinfile_t *skinfile = NULL, *first = NULL;
2780         skinfileitem_t *skinfileitem;
2781         char word[10][MAX_QPATH];
2782         char vabuf[1024];
2783
2784 /*
2785 sample file:
2786 U_bodyBox,models/players/Legoman/BikerA2.tga
2787 U_RArm,models/players/Legoman/BikerA1.tga
2788 U_LArm,models/players/Legoman/BikerA1.tga
2789 U_armor,common/nodraw
2790 U_sword,common/nodraw
2791 U_shield,common/nodraw
2792 U_homb,common/nodraw
2793 U_backpack,common/nodraw
2794 U_colcha,common/nodraw
2795 tag_head,
2796 tag_weapon,
2797 tag_torso,
2798 */
2799         memset(word, 0, sizeof(word));
2800         for (i = 0;i < 256 && (data = text = (char *)FS_LoadFile(va(vabuf, sizeof(vabuf), "%s_%i.skin", loadmodel->name, i), tempmempool, true, NULL));i++)
2801         {
2802                 // If it's the first file we parse
2803                 if (skinfile == NULL)
2804                 {
2805                         skinfile = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2806                         first = skinfile;
2807                 }
2808                 else
2809                 {
2810                         skinfile->next = (skinfile_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfile_t));
2811                         skinfile = skinfile->next;
2812                 }
2813                 skinfile->next = NULL;
2814
2815                 for(line = 0;;line++)
2816                 {
2817                         // parse line
2818                         if (!COM_ParseToken_QuakeC(&data, true))
2819                                 break;
2820                         if (!strcmp(com_token, "\n"))
2821                                 continue;
2822                         words = 0;
2823                         wordsoverflow = false;
2824                         do
2825                         {
2826                                 if (words < 10)
2827                                         strlcpy(word[words++], com_token, sizeof (word[0]));
2828                                 else
2829                                         wordsoverflow = true;
2830                         }
2831                         while (COM_ParseToken_QuakeC(&data, true) && strcmp(com_token, "\n"));
2832                         if (wordsoverflow)
2833                         {
2834                                 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);
2835                                 continue;
2836                         }
2837                         // words is always >= 1
2838                         if (!strcmp(word[0], "replace"))
2839                         {
2840                                 if (words == 3)
2841                                 {
2842                                         if (developer_loading.integer)
2843                                                 Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
2844                                         skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2845                                         skinfileitem->next = skinfile->items;
2846                                         skinfile->items = skinfileitem;
2847                                         strlcpy (skinfileitem->name, word[1], sizeof (skinfileitem->name));
2848                                         strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2849                                 }
2850                                 else
2851                                         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]);
2852                         }
2853                         else if (words >= 2 && !strncmp(word[0], "tag_", 4))
2854                         {
2855                                 // tag name, like "tag_weapon,"
2856                                 // not used for anything (not even in Quake3)
2857                         }
2858                         else if (words >= 2 && !strcmp(word[1], ","))
2859                         {
2860                                 // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
2861                                 if (developer_loading.integer)
2862                                         Con_Printf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
2863                                 skinfileitem = (skinfileitem_t *)Mem_Alloc(loadmodel->mempool, sizeof(skinfileitem_t));
2864                                 skinfileitem->next = skinfile->items;
2865                                 skinfile->items = skinfileitem;
2866                                 strlcpy (skinfileitem->name, word[0], sizeof (skinfileitem->name));
2867                                 strlcpy (skinfileitem->replacement, word[2], sizeof (skinfileitem->replacement));
2868                         }
2869                         else
2870                                 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);
2871                 }
2872                 Mem_Free(text);
2873         }
2874         if (i)
2875                 loadmodel->numskins = i;
2876         return first;
2877 }
2878
2879 void Mod_FreeSkinFiles(skinfile_t *skinfile)
2880 {
2881         skinfile_t *next;
2882         skinfileitem_t *skinfileitem, *nextitem;
2883         for (;skinfile;skinfile = next)
2884         {
2885                 next = skinfile->next;
2886                 for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
2887                 {
2888                         nextitem = skinfileitem->next;
2889                         Mem_Free(skinfileitem);
2890                 }
2891                 Mem_Free(skinfile);
2892         }
2893 }
2894
2895 int Mod_CountSkinFiles(skinfile_t *skinfile)
2896 {
2897         int i;
2898         for (i = 0;skinfile;skinfile = skinfile->next, i++);
2899         return i;
2900 }
2901
2902 void Mod_SnapVertices(int numcomponents, int numvertices, float *vertices, float snap)
2903 {
2904         int i;
2905         double isnap = 1.0 / snap;
2906         for (i = 0;i < numvertices*numcomponents;i++)
2907                 vertices[i] = floor(vertices[i]*isnap)*snap;
2908 }
2909
2910 int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
2911 {
2912         int i, outtriangles;
2913         float edgedir1[3], edgedir2[3], temp[3];
2914         // a degenerate triangle is one with no width (thickness, surface area)
2915         // these are characterized by having all 3 points colinear (along a line)
2916         // or having two points identical
2917         // the simplest check is to calculate the triangle's area
2918         for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
2919         {
2920                 // calculate first edge
2921                 VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir1);
2922                 VectorSubtract(vertex3f + inelement3i[2] * 3, vertex3f + inelement3i[0] * 3, edgedir2);
2923                 CrossProduct(edgedir1, edgedir2, temp);
2924                 if (VectorLength2(temp) < 0.001f)
2925                         continue; // degenerate triangle (no area)
2926                 // valid triangle (has area)
2927                 VectorCopy(inelement3i, outelement3i);
2928                 outelement3i += 3;
2929                 outtriangles++;
2930         }
2931         return outtriangles;
2932 }
2933
2934 void Mod_VertexRangeFromElements(int numelements, const int *elements, int *firstvertexpointer, int *lastvertexpointer)
2935 {
2936         int i, e;
2937         int firstvertex, lastvertex;
2938         if (numelements > 0 && elements)
2939         {
2940                 firstvertex = lastvertex = elements[0];
2941                 for (i = 1;i < numelements;i++)
2942                 {
2943                         e = elements[i];
2944                         firstvertex = min(firstvertex, e);
2945                         lastvertex = max(lastvertex, e);
2946                 }
2947         }
2948         else
2949                 firstvertex = lastvertex = 0;
2950         if (firstvertexpointer)
2951                 *firstvertexpointer = firstvertex;
2952         if (lastvertexpointer)
2953                 *lastvertexpointer = lastvertex;
2954 }
2955
2956 void Mod_MakeSortedSurfaces(dp_model_t *mod)
2957 {
2958         // make an optimal set of texture-sorted batches to draw...
2959         int j, t;
2960         int *firstsurfacefortexture;
2961         int *numsurfacesfortexture;
2962         if (!mod->sortedmodelsurfaces)
2963                 mod->sortedmodelsurfaces = (int *) Mem_Alloc(loadmodel->mempool, mod->nummodelsurfaces * sizeof(*mod->sortedmodelsurfaces));
2964         firstsurfacefortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*firstsurfacefortexture));
2965         numsurfacesfortexture = (int *) Mem_Alloc(tempmempool, mod->num_textures * sizeof(*numsurfacesfortexture));
2966         memset(numsurfacesfortexture, 0, mod->num_textures * sizeof(*numsurfacesfortexture));
2967         for (j = 0;j < mod->nummodelsurfaces;j++)
2968         {
2969                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2970                 t = (int)(surface->texture - mod->data_textures);
2971                 numsurfacesfortexture[t]++;
2972         }
2973         j = 0;
2974         for (t = 0;t < mod->num_textures;t++)
2975         {
2976                 firstsurfacefortexture[t] = j;
2977                 j += numsurfacesfortexture[t];
2978         }
2979         for (j = 0;j < mod->nummodelsurfaces;j++)
2980         {
2981                 const msurface_t *surface = mod->data_surfaces + j + mod->firstmodelsurface;
2982                 t = (int)(surface->texture - mod->data_textures);
2983                 mod->sortedmodelsurfaces[firstsurfacefortexture[t]++] = j + mod->firstmodelsurface;
2984         }
2985         Mem_Free(firstsurfacefortexture);
2986         Mem_Free(numsurfacesfortexture);
2987 }
2988
2989 void Mod_BuildVBOs(void)
2990 {
2991         if (!loadmodel->surfmesh.num_vertices)
2992                 return;
2993
2994         if (gl_paranoid.integer && loadmodel->surfmesh.data_element3s && loadmodel->surfmesh.data_element3i)
2995         {
2996                 int i;
2997                 for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
2998                 {
2999                         if (loadmodel->surfmesh.data_element3s[i] != loadmodel->surfmesh.data_element3i[i])
3000                         {
3001                                 Con_Printf("Mod_BuildVBOs: element %u is incorrect (%u should be %u)\n", i, loadmodel->surfmesh.data_element3s[i], loadmodel->surfmesh.data_element3i[i]);
3002                                 loadmodel->surfmesh.data_element3s[i] = loadmodel->surfmesh.data_element3i[i];
3003                         }
3004                 }
3005         }
3006
3007         // build r_vertexmesh_t array
3008         // (compressed interleaved array for D3D)
3009         if (!loadmodel->surfmesh.data_vertexmesh && vid.useinterleavedarrays)
3010         {
3011                 int vertexindex;
3012                 int numvertices = loadmodel->surfmesh.num_vertices;
3013                 r_vertexmesh_t *vertexmesh;
3014                 loadmodel->surfmesh.data_vertexmesh = vertexmesh = (r_vertexmesh_t*)Mem_Alloc(loadmodel->mempool, numvertices * sizeof(r_vertexmesh_t));
3015                 for (vertexindex = 0;vertexindex < numvertices;vertexindex++, vertexmesh++)
3016                 {
3017                         VectorCopy(loadmodel->surfmesh.data_vertex3f + 3*vertexindex, vertexmesh->vertex3f);
3018                         VectorScale(loadmodel->surfmesh.data_svector3f + 3*vertexindex, 1.0f, vertexmesh->svector3f);
3019                         VectorScale(loadmodel->surfmesh.data_tvector3f + 3*vertexindex, 1.0f, vertexmesh->tvector3f);
3020                         VectorScale(loadmodel->surfmesh.data_normal3f + 3*vertexindex, 1.0f, vertexmesh->normal3f);
3021                         if (loadmodel->surfmesh.data_lightmapcolor4f)
3022                                 Vector4Copy(loadmodel->surfmesh.data_lightmapcolor4f + 4*vertexindex, vertexmesh->color4f);
3023                         Vector2Copy(loadmodel->surfmesh.data_texcoordtexture2f + 2*vertexindex, vertexmesh->texcoordtexture2f);
3024                         if (loadmodel->surfmesh.data_texcoordlightmap2f)
3025                                 Vector2Scale(loadmodel->surfmesh.data_texcoordlightmap2f + 2*vertexindex, 1.0f, vertexmesh->texcoordlightmap2f);
3026                         if (loadmodel->surfmesh.data_skeletalindex4ub)
3027                                 Vector4Copy(loadmodel->surfmesh.data_skeletalindex4ub + 4*vertexindex, vertexmesh->skeletalindex4ub);
3028                         if (loadmodel->surfmesh.data_skeletalweight4ub)
3029                                 Vector4Copy(loadmodel->surfmesh.data_skeletalweight4ub + 4*vertexindex, vertexmesh->skeletalweight4ub);
3030                 }
3031         }
3032
3033         // upload short indices as a buffer
3034         if (loadmodel->surfmesh.data_element3s && !loadmodel->surfmesh.data_element3s_indexbuffer)
3035                 loadmodel->surfmesh.data_element3s_indexbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_element3s, loadmodel->surfmesh.num_triangles * sizeof(short[3]), loadmodel->name, true, false, false, true);
3036
3037         // upload int indices as a buffer
3038         if (loadmodel->surfmesh.data_element3i && !loadmodel->surfmesh.data_element3i_indexbuffer && !loadmodel->surfmesh.data_element3s)
3039                 loadmodel->surfmesh.data_element3i_indexbuffer = R_Mesh_CreateMeshBuffer(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles * sizeof(int[3]), loadmodel->name, true, false, false, false);
3040
3041         // only build a vbo if one has not already been created (this is important for brush models which load specially)
3042         // vertex buffer is several arrays and we put them in the same buffer
3043         //
3044         // is this wise?  the texcoordtexture2f array is used with dynamic
3045         // vertex/svector/tvector/normal when rendering animated models, on the
3046         // other hand animated models don't use a lot of vertices anyway...
3047         if (!loadmodel->surfmesh.vbo_vertexbuffer && !vid.useinterleavedarrays)
3048         {
3049                 int size;
3050                 unsigned char *mem;
3051                 size = 0;
3052                 loadmodel->surfmesh.vbooffset_vertexmesh         = size;if (loadmodel->surfmesh.data_vertexmesh        ) size += loadmodel->surfmesh.num_vertices * sizeof(r_vertexmesh_t);
3053                 loadmodel->surfmesh.vbooffset_vertex3f           = size;if (loadmodel->surfmesh.data_vertex3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3054                 loadmodel->surfmesh.vbooffset_svector3f          = size;if (loadmodel->surfmesh.data_svector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3055                 loadmodel->surfmesh.vbooffset_tvector3f          = size;if (loadmodel->surfmesh.data_tvector3f         ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3056                 loadmodel->surfmesh.vbooffset_normal3f           = size;if (loadmodel->surfmesh.data_normal3f          ) size += loadmodel->surfmesh.num_vertices * sizeof(float[3]);
3057                 loadmodel->surfmesh.vbooffset_texcoordtexture2f  = size;if (loadmodel->surfmesh.data_texcoordtexture2f ) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
3058                 loadmodel->surfmesh.vbooffset_texcoordlightmap2f = size;if (loadmodel->surfmesh.data_texcoordlightmap2f) size += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
3059                 loadmodel->surfmesh.vbooffset_lightmapcolor4f    = size;if (loadmodel->surfmesh.data_lightmapcolor4f   ) size += loadmodel->surfmesh.num_vertices * sizeof(float[4]);
3060                 loadmodel->surfmesh.vbooffset_skeletalindex4ub   = size;if (loadmodel->surfmesh.data_skeletalindex4ub  ) size += loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]);
3061                 loadmodel->surfmesh.vbooffset_skeletalweight4ub  = size;if (loadmodel->surfmesh.data_skeletalweight4ub ) size += loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]);
3062                 mem = (unsigned char *)Mem_Alloc(tempmempool, size);
3063                 if (loadmodel->surfmesh.data_vertexmesh        ) memcpy(mem + loadmodel->surfmesh.vbooffset_vertexmesh        , loadmodel->surfmesh.data_vertexmesh        , loadmodel->surfmesh.num_vertices * sizeof(r_vertexmesh_t));
3064                 if (loadmodel->surfmesh.data_vertex3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_vertex3f          , loadmodel->surfmesh.data_vertex3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3065                 if (loadmodel->surfmesh.data_svector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_svector3f         , loadmodel->surfmesh.data_svector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3066                 if (loadmodel->surfmesh.data_tvector3f         ) memcpy(mem + loadmodel->surfmesh.vbooffset_tvector3f         , loadmodel->surfmesh.data_tvector3f         , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3067                 if (loadmodel->surfmesh.data_normal3f          ) memcpy(mem + loadmodel->surfmesh.vbooffset_normal3f          , loadmodel->surfmesh.data_normal3f          , loadmodel->surfmesh.num_vertices * sizeof(float[3]));
3068                 if (loadmodel->surfmesh.data_texcoordtexture2f ) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordtexture2f , loadmodel->surfmesh.data_texcoordtexture2f , loadmodel->surfmesh.num_vertices * sizeof(float[2]));
3069                 if (loadmodel->surfmesh.data_texcoordlightmap2f) memcpy(mem + loadmodel->surfmesh.vbooffset_texcoordlightmap2f, loadmodel->surfmesh.data_texcoordlightmap2f, loadmodel->surfmesh.num_vertices * sizeof(float[2]));
3070                 if (loadmodel->surfmesh.data_lightmapcolor4f   ) memcpy(mem + loadmodel->surfmesh.vbooffset_lightmapcolor4f   , loadmodel->surfmesh.data_lightmapcolor4f   , loadmodel->surfmesh.num_vertices * sizeof(float[4]));
3071                 if (loadmodel->surfmesh.data_skeletalindex4ub  ) memcpy(mem + loadmodel->surfmesh.vbooffset_skeletalindex4ub  , loadmodel->surfmesh.data_skeletalindex4ub  , loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]));
3072                 if (loadmodel->surfmesh.data_skeletalweight4ub ) memcpy(mem + loadmodel->surfmesh.vbooffset_skeletalweight4ub , loadmodel->surfmesh.data_skeletalweight4ub , loadmodel->surfmesh.num_vertices * sizeof(unsigned char[4]));
3073                 loadmodel->surfmesh.vbo_vertexbuffer = R_Mesh_CreateMeshBuffer(mem, size, loadmodel->name, false, false, false, false);
3074                 Mem_Free(mem);
3075         }
3076 }
3077
3078 extern cvar_t mod_obj_orientation;
3079 static void Mod_Decompile_OBJ(dp_model_t *model, const char *filename, const char *mtlfilename, const char *originalfilename)
3080 {
3081         int submodelindex, vertexindex, surfaceindex, triangleindex, textureindex, countvertices = 0, countsurfaces = 0, countfaces = 0, counttextures = 0;
3082         int a, b, c;
3083         const char *texname;
3084         const int *e;
3085         const float *v, *vn, *vt;
3086         size_t l;
3087         size_t outbufferpos = 0;
3088         size_t outbuffermax = 0x100000;
3089         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3090         const msurface_t *surface;
3091         const int maxtextures = 256;
3092         char *texturenames = (char *) Z_Malloc(maxtextures * MAX_QPATH);
3093         dp_model_t *submodel;
3094
3095         // construct the mtllib file
3096         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "# mtllib for %s exported by darkplaces engine\n", originalfilename);
3097         if (l > 0)
3098                 outbufferpos += l;
3099         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3100         {
3101                 countsurfaces++;
3102                 countvertices += surface->num_vertices;
3103                 countfaces += surface->num_triangles;
3104                 texname = (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default";
3105                 for (textureindex = 0;textureindex < counttextures;textureindex++)
3106                         if (!strcmp(texturenames + textureindex * MAX_QPATH, texname))
3107                                 break;
3108                 if (textureindex < counttextures)
3109                         continue; // already wrote this material entry
3110                 if (textureindex >= maxtextures)
3111                         continue; // just a precaution
3112                 textureindex = counttextures++;
3113                 strlcpy(texturenames + textureindex * MAX_QPATH, texname, MAX_QPATH);
3114                 if (outbufferpos >= outbuffermax >> 1)
3115                 {
3116                         outbuffermax *= 2;
3117                         oldbuffer = outbuffer;
3118                         outbuffer = (char *) Z_Malloc(outbuffermax);
3119                         memcpy(outbuffer, oldbuffer, outbufferpos);
3120                         Z_Free(oldbuffer);
3121                 }
3122                 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");
3123                 if (l > 0)
3124                         outbufferpos += l;
3125         }
3126
3127         // write the mtllib file
3128         FS_WriteFile(mtlfilename, outbuffer, outbufferpos);
3129
3130         // construct the obj file
3131         outbufferpos = 0;
3132         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);
3133         if (l > 0)
3134                 outbufferpos += l;
3135
3136         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)
3137         {
3138                 if (outbufferpos >= outbuffermax >> 1)
3139                 {
3140                         outbuffermax *= 2;
3141                         oldbuffer = outbuffer;
3142                         outbuffer = (char *) Z_Malloc(outbuffermax);
3143                         memcpy(outbuffer, oldbuffer, outbufferpos);
3144                         Z_Free(oldbuffer);
3145                 }
3146                 if(mod_obj_orientation.integer)
3147                         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]);
3148                 else
3149                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "v %f %f %f\nvn %f %f %f\nvt %f %f\n", v[0], v[1], v[2], vn[0], vn[1], vn[2], vt[0], 1-vt[1]);
3150                 if (l > 0)
3151                         outbufferpos += l;
3152         }
3153
3154         for (submodelindex = 0;submodelindex < max(1, model->brush.numsubmodels);submodelindex++)
3155         {
3156                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "o %i\n", submodelindex);
3157                 if (l > 0)
3158                         outbufferpos += l;
3159                 submodel = model->brush.numsubmodels ? model->brush.submodels[submodelindex] : model;
3160                 for (surfaceindex = 0;surfaceindex < submodel->nummodelsurfaces;surfaceindex++)
3161                 {
3162                         surface = model->data_surfaces + submodel->sortedmodelsurfaces[surfaceindex];
3163                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "usemtl %s\n", (surface->texture && surface->texture->name[0]) ? surface->texture->name : "default");
3164                         if (l > 0)
3165                                 outbufferpos += l;
3166                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3167                         {
3168                                 if (outbufferpos >= outbuffermax >> 1)
3169                                 {
3170                                         outbuffermax *= 2;
3171                                         oldbuffer = outbuffer;
3172                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3173                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3174                                         Z_Free(oldbuffer);
3175                                 }
3176                                 a = e[0]+1;
3177                                 b = e[1]+1;
3178                                 c = e[2]+1;
3179                                 if(mod_obj_orientation.integer)
3180                                         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);
3181                                 else
3182                                         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "f %i/%i/%i %i/%i/%i %i/%i/%i\n", a,a,a,c,c,c,b,b,b);
3183                                 if (l > 0)
3184                                         outbufferpos += l;
3185                         }
3186                 }
3187         }
3188
3189         // write the obj file
3190         FS_WriteFile(filename, outbuffer, outbufferpos);
3191
3192         // clean up
3193         Z_Free(outbuffer);
3194         Z_Free(texturenames);
3195
3196         // print some stats
3197         Con_Printf("Wrote %s (%i bytes, %i vertices, %i faces, %i surfaces with %i distinct textures)\n", filename, (int)outbufferpos, countvertices, countfaces, countsurfaces, counttextures);
3198 }
3199
3200 static void Mod_Decompile_SMD(dp_model_t *model, const char *filename, int firstpose, int numposes, qboolean writetriangles)
3201 {
3202         int countnodes = 0, counttriangles = 0, countframes = 0;
3203         int surfaceindex;
3204         int triangleindex;
3205         int transformindex;
3206         int poseindex;
3207         int cornerindex;
3208         const int *e;
3209         size_t l;
3210         size_t outbufferpos = 0;
3211         size_t outbuffermax = 0x100000;
3212         char *outbuffer = (char *) Z_Malloc(outbuffermax), *oldbuffer;
3213         const msurface_t *surface;
3214         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "version 1\nnodes\n");
3215         if (l > 0)
3216                 outbufferpos += l;
3217         for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3218         {
3219                 if (outbufferpos >= outbuffermax >> 1)
3220                 {
3221                         outbuffermax *= 2;
3222                         oldbuffer = outbuffer;
3223                         outbuffer = (char *) Z_Malloc(outbuffermax);
3224                         memcpy(outbuffer, oldbuffer, outbufferpos);
3225                         Z_Free(oldbuffer);
3226                 }
3227                 countnodes++;
3228                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%3i \"%s\" %3i\n", transformindex, model->data_bones[transformindex].name, model->data_bones[transformindex].parent);
3229                 if (l > 0)
3230                         outbufferpos += l;
3231         }
3232         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\nskeleton\n");
3233         if (l > 0)
3234                 outbufferpos += l;
3235         for (poseindex = 0;poseindex < numposes;poseindex++)
3236         {
3237                 countframes++;
3238                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "time %i\n", poseindex);
3239                 if (l > 0)
3240                         outbufferpos += l;
3241                 for (transformindex = 0;transformindex < model->num_bones;transformindex++)
3242                 {
3243                         float angles[3];
3244                         float mtest[4][3];
3245                         matrix4x4_t posematrix;
3246                         if (outbufferpos >= outbuffermax >> 1)
3247                         {
3248                                 outbuffermax *= 2;
3249                                 oldbuffer = outbuffer;
3250                                 outbuffer = (char *) Z_Malloc(outbuffermax);
3251                                 memcpy(outbuffer, oldbuffer, outbufferpos);
3252                                 Z_Free(oldbuffer);
3253                         }
3254
3255                         // strangely the smd angles are for a transposed matrix, so we
3256                         // have to generate a transposed matrix, then convert that...
3257                         Matrix4x4_FromBonePose7s(&posematrix, model->num_posescale, model->data_poses7s + 7*(model->num_bones * poseindex + transformindex));
3258                         Matrix4x4_ToArray12FloatGL(&posematrix, mtest[0]);
3259                         AnglesFromVectors(angles, mtest[0], mtest[2], false);
3260                         if (angles[0] >= 180) angles[0] -= 360;
3261                         if (angles[1] >= 180) angles[1] -= 360;
3262                         if (angles[2] >= 180) angles[2] -= 360;
3263
3264 #if 0
3265 {
3266                         float a = DEG2RAD(angles[ROLL]);
3267                         float b = DEG2RAD(angles[PITCH]);
3268                         float c = DEG2RAD(angles[YAW]);
3269                         float cy, sy, cp, sp, cr, sr;
3270                         float test[4][3];
3271                         // smd matrix construction, for comparing
3272                         sy = sin(c);
3273                         cy = cos(c);
3274                         sp = sin(b);
3275                         cp = cos(b);
3276                         sr = sin(a);
3277                         cr = cos(a);
3278
3279                         test[0][0] = cp*cy;
3280                         test[0][1] = cp*sy;
3281                         test[0][2] = -sp;
3282                         test[1][0] = sr*sp*cy+cr*-sy;
3283                         test[1][1] = sr*sp*sy+cr*cy;
3284                         test[1][2] = sr*cp;
3285                         test[2][0] = (cr*sp*cy+-sr*-sy);
3286                         test[2][1] = (cr*sp*sy+-sr*cy);
3287                         test[2][2] = cr*cp;
3288                         test[3][0] = pose[9];
3289                         test[3][1] = pose[10];
3290                         test[3][2] = pose[11];
3291 }
3292 #endif
3293                         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]));
3294                         if (l > 0)
3295                                 outbufferpos += l;
3296                 }
3297         }
3298         l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3299         if (l > 0)
3300                 outbufferpos += l;
3301         if (writetriangles)
3302         {
3303                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "triangles\n");
3304                 if (l > 0)
3305                         outbufferpos += l;
3306                 for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->num_surfaces;surfaceindex++, surface++)
3307                 {
3308                         for (triangleindex = 0, e = model->surfmesh.data_element3i + surface->num_firsttriangle * 3;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3309                         {
3310                                 counttriangles++;
3311                                 if (outbufferpos >= outbuffermax >> 1)
3312                                 {
3313                                         outbuffermax *= 2;
3314                                         oldbuffer = outbuffer;
3315                                         outbuffer = (char *) Z_Malloc(outbuffermax);
3316                                         memcpy(outbuffer, oldbuffer, outbufferpos);
3317                                         Z_Free(oldbuffer);
3318                                 }
3319                                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "%s\n", surface->texture && surface->texture->name[0] ? surface->texture->name : "default.bmp");
3320                                 if (l > 0)
3321                                         outbufferpos += l;
3322                                 for (cornerindex = 0;cornerindex < 3;cornerindex++)
3323                                 {
3324                                         const int index = e[2-cornerindex];
3325                                         const float *v = model->surfmesh.data_vertex3f + index * 3;
3326                                         const float *vn = model->surfmesh.data_normal3f + index * 3;
3327                                         const float *vt = model->surfmesh.data_texcoordtexture2f + index * 2;
3328                                         const int b = model->surfmesh.blends[index];
3329                                         if (b < model->num_bones)
3330                                                 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]);
3331                                         else
3332                                         {
3333                                                 const blendweights_t *w = model->surfmesh.data_blendweights + b - model->num_bones;
3334                                                 const unsigned char *wi = w->index;
3335                                                 const unsigned char *wf = w->influence;
3336                                             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);
3337                                                 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);
3338                                                 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);
3339                                                 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]);
3340                                         }
3341                                         if (l > 0)
3342                                                 outbufferpos += l;
3343                                 }
3344                         }
3345                 }
3346                 l = dpsnprintf(outbuffer + outbufferpos, outbuffermax - outbufferpos, "end\n");
3347                 if (l > 0)
3348                         outbufferpos += l;
3349         }
3350
3351         FS_WriteFile(filename, outbuffer, outbufferpos);
3352         Z_Free(outbuffer);
3353
3354         Con_Printf("Wrote %s (%i bytes, %i nodes, %i frames, %i triangles)\n", filename, (int)outbufferpos, countnodes, countframes, counttriangles);
3355 }
3356
3357 /*
3358 ================
3359 Mod_Decompile_f
3360
3361 decompiles a model to editable files
3362 ================
3363 */
3364 static void Mod_Decompile_f(void)
3365 {
3366         int i, j, k, l, first, count;
3367         dp_model_t *mod;
3368         char inname[MAX_QPATH];
3369         char outname[MAX_QPATH];
3370         char mtlname[MAX_QPATH];
3371         char basename[MAX_QPATH];
3372         char animname[MAX_QPATH];
3373         char animname2[MAX_QPATH];
3374         char zymtextbuffer[16384];
3375         char dpmtextbuffer[16384];
3376         char framegroupstextbuffer[16384];
3377         int zymtextsize = 0;
3378         int dpmtextsize = 0;
3379         int framegroupstextsize = 0;
3380         char vabuf[1024];
3381
3382         if (Cmd_Argc() != 2)
3383         {
3384                 Con_Print("usage: modeldecompile <filename>\n");
3385                 return;
3386         }
3387
3388         strlcpy(inname, Cmd_Argv(1), sizeof(inname));
3389         FS_StripExtension(inname, basename, sizeof(basename));
3390
3391         mod = Mod_ForName(inname, false, true, inname[0] == '*' ? cl.model_name[1] : NULL);
3392         if (!mod)
3393         {
3394                 Con_Print("No such model\n");
3395                 return;
3396         }
3397         if (mod->brush.submodel)
3398         {
3399                 // if we're decompiling a submodel, be sure to give it a proper name based on its parent
3400                 FS_StripExtension(cl.model_name[1], outname, sizeof(outname));
3401                 dpsnprintf(basename, sizeof(basename), "%s/%s", outname, mod->name);
3402                 outname[0] = 0;
3403         }
3404         if (!mod->surfmesh.num_triangles)
3405         {
3406                 Con_Print("Empty model (or sprite)\n");
3407                 return;
3408         }
3409
3410         // export OBJ if possible (not on sprites)
3411         if (mod->surfmesh.num_triangles)
3412         {
3413                 dpsnprintf(outname, sizeof(outname), "%s_decompiled.obj", basename);
3414                 dpsnprintf(mtlname, sizeof(mtlname), "%s_decompiled.mtl", basename);
3415                 Mod_Decompile_OBJ(mod, outname, mtlname, inname);
3416         }
3417
3418         // export SMD if possible (only for skeletal models)
3419         if (mod->surfmesh.num_triangles && mod->num_bones)
3420         {
3421                 dpsnprintf(outname, sizeof(outname), "%s_decompiled/ref1.smd", basename);
3422                 Mod_Decompile_SMD(mod, outname, 0, 1, true);
3423                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "output out.zym\nscale 1\norigin 0 0 0\nmesh ref1.smd\n");
3424                 if (l > 0) zymtextsize += l;
3425                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "outputdir .\nmodel out\nscale 1\norigin 0 0 0\nscene ref1.smd\n");
3426                 if (l > 0) dpmtextsize += l;
3427                 for (i = 0;i < mod->numframes;i = j)
3428                 {
3429                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3430                         first = mod->animscenes[i].firstframe;
3431                         if (mod->animscenes[i].framecount > 1)
3432                         {
3433                                 // framegroup anim
3434                                 count = mod->animscenes[i].framecount;
3435                                 j = i + 1;
3436                         }
3437                         else
3438                         {
3439                                 // individual frame
3440                                 // check for additional frames with same name
3441                                 for (l = 0, k = (int)strlen(animname);animname[l];l++)
3442                                         if(animname[l] < '0' || animname[l] > '9')
3443                                                 k = l + 1;
3444                                 if(k > 0 && animname[k-1] == '_')
3445                                         --k;
3446                                 animname[k] = 0;
3447                                 count = mod->num_poses - first;
3448                                 for (j = i + 1;j < mod->numframes;j++)
3449                                 {
3450                                         strlcpy(animname2, mod->animscenes[j].name, sizeof(animname2));
3451                                         for (l = 0, k = (int)strlen(animname2);animname2[l];l++)
3452                                                 if(animname2[l] < '0' || animname2[l] > '9')
3453                                                         k = l + 1;
3454                                         if(k > 0 && animname[k-1] == '_')
3455                                                 --k;
3456                                         animname2[k] = 0;
3457                                         if (strcmp(animname2, animname) || mod->animscenes[j].framecount > 1)
3458                                         {
3459                                                 count = mod->animscenes[j].firstframe - first;
3460                                                 break;
3461                                         }
3462                                 }
3463                                 // if it's only one frame, use the original frame name
3464                                 if (j == i + 1)
3465                                         strlcpy(animname, mod->animscenes[i].name, sizeof(animname));
3466
3467                         }
3468                         dpsnprintf(outname, sizeof(outname), "%s_decompiled/%s.smd", basename, animname);
3469                         Mod_Decompile_SMD(mod, outname, first, count, false);
3470                         if (zymtextsize < (int)sizeof(zymtextbuffer) - 100)
3471                         {
3472                                 l = dpsnprintf(zymtextbuffer + zymtextsize, sizeof(zymtextbuffer) - zymtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3473                                 if (l > 0) zymtextsize += l;
3474                         }
3475                         if (dpmtextsize < (int)sizeof(dpmtextbuffer) - 100)
3476                         {
3477                                 l = dpsnprintf(dpmtextbuffer + dpmtextsize, sizeof(dpmtextbuffer) - dpmtextsize, "scene %s.smd fps %g %s\n", animname, mod->animscenes[i].framerate, mod->animscenes[i].loop ? "" : " noloop");
3478                                 if (l > 0) dpmtextsize += l;
3479                         }
3480                         if (framegroupstextsize < (int)sizeof(framegroupstextbuffer) - 100)
3481                         {
3482                                 l = dpsnprintf(framegroupstextbuffer + framegroupstextsize, sizeof(framegroupstextbuffer) - framegroupstextsize, "%d %d %f %d // %s\n", first, count, mod->animscenes[i].framerate, mod->animscenes[i].loop, animname);
3483                                 if (l > 0) framegroupstextsize += l;
3484                         }
3485                 }
3486                 if (zymtextsize)
3487                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_zym.txt", basename), zymtextbuffer, (fs_offset_t)zymtextsize);
3488                 if (dpmtextsize)
3489                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled/out_dpm.txt", basename), dpmtextbuffer, (fs_offset_t)dpmtextsize);
3490                 if (framegroupstextsize)
3491                         FS_WriteFile(va(vabuf, sizeof(vabuf), "%s_decompiled.framegroups", basename), framegroupstextbuffer, (fs_offset_t)framegroupstextsize);
3492         }
3493 }
3494
3495 void Mod_AllocLightmap_Init(mod_alloclightmap_state_t *state, int width, int height)
3496 {
3497         int y;
3498         memset(state, 0, sizeof(*state));
3499         state->width = width;
3500         state->height = height;
3501         state->currentY = 0;
3502         state->rows = (mod_alloclightmap_row_t *)Mem_Alloc(loadmodel->mempool, state->height * sizeof(*state->rows));
3503         for (y = 0;y < state->height;y++)
3504         {
3505                 state->rows[y].currentX = 0;
3506                 state->rows[y].rowY = -1;
3507         }
3508 }
3509
3510 void Mod_AllocLightmap_Reset(mod_alloclightmap_state_t *state)
3511 {
3512         int y;
3513         state->currentY = 0;
3514         for (y = 0;y < state->height;y++)
3515         {
3516                 state->rows[y].currentX = 0;
3517                 state->rows[y].rowY = -1;
3518         }
3519 }
3520
3521 void Mod_AllocLightmap_Free(mod_alloclightmap_state_t *state)
3522 {
3523         if (state->rows)
3524                 Mem_Free(state->rows);
3525         memset(state, 0, sizeof(*state));
3526 }
3527
3528 qboolean Mod_AllocLightmap_Block(mod_alloclightmap_state_t *state, int blockwidth, int blockheight, int *outx, int *outy)
3529 {
3530         mod_alloclightmap_row_t *row;
3531         int y;
3532
3533         row = state->rows + blockheight;
3534         if ((row->rowY < 0) || (row->currentX + blockwidth > state->width))
3535         {
3536                 if (state->currentY + blockheight <= state->height)
3537                 {
3538                         // use the current allocation position
3539                         row->rowY = state->currentY;
3540                         row->currentX = 0;
3541                         state->currentY += blockheight;
3542                 }
3543                 else
3544                 {
3545                         // find another position
3546                         for (y = blockheight;y < state->height;y++)
3547                         {
3548                                 if ((state->rows[y].rowY >= 0) && (state->rows[y].currentX + blockwidth <= state->width))
3549                                 {
3550                                         row = state->rows + y;
3551                                         break;
3552                                 }
3553                         }
3554                         if (y == state->height)
3555                                 return false;
3556                 }
3557         }
3558         *outy = row->rowY;
3559         *outx = row->currentX;
3560         row->currentX += blockwidth;
3561
3562         return true;
3563 }
3564
3565 typedef struct lightmapsample_s
3566 {
3567         float pos[3];
3568         float sh1[4][3];
3569         float *vertex_color;
3570         unsigned char *lm_bgr;
3571         unsigned char *lm_dir;
3572 }
3573 lightmapsample_t;
3574
3575 typedef struct lightmapvertex_s
3576 {
3577         int index;
3578         float pos[3];
3579         float normal[3];
3580         float texcoordbase[2];
3581         float texcoordlightmap[2];
3582         float lightcolor[4];
3583 }
3584 lightmapvertex_t;
3585
3586 typedef struct lightmaptriangle_s
3587 {
3588         int triangleindex;
3589         int surfaceindex;
3590         int lightmapindex;
3591         int axis;
3592         int lmoffset[2];
3593         int lmsize[2];
3594         // 2D modelspace coordinates of min corner
3595         // snapped to lightmap grid but not in grid coordinates
3596         float lmbase[2];
3597         // 2D modelspace to lightmap coordinate scale
3598         float lmscale[2];
3599         float vertex[3][3];
3600         float mins[3];
3601         float maxs[3];
3602 }
3603 lightmaptriangle_t;
3604
3605 typedef struct lightmaplight_s
3606 {
3607         float origin[3];
3608         float radius;
3609         float iradius;
3610         float radius2;
3611         float color[3];
3612         svbsp_t svbsp;
3613 }
3614 lightmaplight_t;
3615
3616 lightmaptriangle_t *mod_generatelightmaps_lightmaptriangles;
3617
3618 #define MAX_LIGHTMAPSAMPLES 64
3619 static int mod_generatelightmaps_numoffsets[3];
3620 static float mod_generatelightmaps_offsets[3][MAX_LIGHTMAPSAMPLES][3];
3621
3622 static int mod_generatelightmaps_numlights;
3623 static lightmaplight_t *mod_generatelightmaps_lightinfo;
3624
3625 extern cvar_t r_shadow_lightattenuationdividebias;
3626 extern cvar_t r_shadow_lightattenuationlinearscale;
3627
3628 static void Mod_GenerateLightmaps_LightPoint(dp_model_t *model, const vec3_t pos, vec3_t ambient, vec3_t diffuse, vec3_t lightdir)
3629 {
3630         int i;
3631         int index;
3632         int result;
3633         float relativepoint[3];
3634         float color[3];
3635         float dir[3];
3636         float dist;
3637         float dist2;
3638         float intensity;
3639         float sample[5*3];
3640         float lightorigin[3];
3641         float lightradius;
3642         float lightradius2;
3643         float lightiradius;
3644         float lightcolor[3];
3645         trace_t trace;
3646         for (i = 0;i < 5*3;i++)
3647                 sample[i] = 0.0f;
3648         for (index = 0;;index++)
3649         {
3650                 result = R_Shadow_GetRTLightInfo(index, lightorigin, &lightradius, lightcolor);
3651                 if (result < 0)
3652                         break;
3653                 if (result == 0)
3654                         continue;
3655                 lightradius2 = lightradius * lightradius;
3656                 VectorSubtract(lightorigin, pos, relativepoint);
3657                 dist2 = VectorLength2(relativepoint);
3658                 if (dist2 >= lightradius2)
3659                         continue;
3660                 lightiradius = 1.0f / lightradius;
3661                 dist = sqrt(dist2) * lightiradius;
3662                 intensity = (1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist);
3663                 if (intensity <= 0.0f)
3664                         continue;
3665                 if (model && model->TraceLine)
3666                 {
3667                         model->TraceLine(model, NULL, NULL, &trace, pos, lightorigin, SUPERCONTENTS_VISBLOCKERMASK);
3668                         if (trace.fraction < 1)
3669                                 continue;
3670                 }
3671                 // scale down intensity to add to both ambient and diffuse
3672                 //intensity *= 0.5f;
3673                 VectorNormalize(relativepoint);
3674                 VectorScale(lightcolor, intensity, color);
3675                 VectorMA(sample    , 0.5f            , color, sample    );
3676                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3677                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3678                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3679                 // calculate a weighted average light direction as well
3680                 intensity *= VectorLength(color);
3681                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3682         }
3683         // calculate the direction we'll use to reduce the sample to a directional light source
3684         VectorCopy(sample + 12, dir);
3685         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3686         VectorNormalize(dir);
3687         // extract the diffuse color along the chosen direction and scale it
3688         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]);
3689         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]);
3690         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]);
3691         // subtract some of diffuse from ambient
3692         VectorMA(sample, -0.333f, diffuse, ambient);
3693         // store the normalized lightdir
3694         VectorCopy(dir, lightdir);
3695 }
3696
3697 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(const dp_model_t *model, svbsp_t *svbsp, const float *mins, const float *maxs)
3698 {
3699         int surfaceindex;
3700         int triangleindex;
3701         const msurface_t *surface;
3702         const float *vertex3f = model->surfmesh.data_vertex3f;
3703         const int *element3i = model->surfmesh.data_element3i;
3704         const int *e;
3705         float v2[3][3];
3706         for (surfaceindex = 0, surface = model->data_surfaces;surfaceindex < model->nummodelsurfaces;surfaceindex++, surface++)
3707         {
3708                 if (!BoxesOverlap(surface->mins, surface->maxs, mins, maxs))
3709                         continue;
3710                 if (surface->texture->basematerialflags & MATERIALFLAG_NOSHADOW)
3711                         continue;
3712                 for (triangleindex = 0, e = element3i + 3*surface->num_firsttriangle;triangleindex < surface->num_triangles;triangleindex++, e += 3)
3713                 {
3714                         VectorCopy(vertex3f + 3*e[0], v2[0]);
3715                         VectorCopy(vertex3f + 3*e[1], v2[1]);
3716                         VectorCopy(vertex3f + 3*e[2], v2[2]);
3717                         SVBSP_AddPolygon(svbsp, 3, v2[0], true, NULL, NULL, 0);
3718                 }
3719         }
3720 }
3721
3722 static void Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(dp_model_t *model, lightmaplight_t *lightinfo)
3723 {
3724         int maxnodes = 1<<14;
3725         svbsp_node_t *nodes;
3726         float origin[3];
3727         float mins[3];
3728         float maxs[3];
3729         svbsp_t svbsp;
3730         VectorSet(mins, lightinfo->origin[0] - lightinfo->radius, lightinfo->origin[1] - lightinfo->radius, lightinfo->origin[2] - lightinfo->radius);
3731         VectorSet(maxs, lightinfo->origin[0] + lightinfo->radius, lightinfo->origin[1] + lightinfo->radius, lightinfo->origin[2] + lightinfo->radius);
3732         VectorCopy(lightinfo->origin, origin);
3733         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3734         for (;;)
3735         {
3736                 SVBSP_Init(&svbsp, origin, maxnodes, nodes);
3737                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP_InsertSurfaces(model, &svbsp, mins, maxs);
3738                 if (svbsp.ranoutofnodes)
3739                 {
3740                         maxnodes *= 16;
3741                         if (maxnodes > 1<<22)
3742                         {
3743                                 Mem_Free(nodes);
3744                                 return;
3745                         }
3746                         Mem_Free(nodes);
3747                         nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, maxnodes * sizeof(*nodes));
3748                 }
3749                 else
3750                         break;
3751         }
3752         if (svbsp.numnodes > 0)
3753         {
3754                 svbsp.nodes = (svbsp_node_t *)Mem_Alloc(tempmempool, svbsp.numnodes * sizeof(*nodes));
3755                 memcpy(svbsp.nodes, nodes, svbsp.numnodes * sizeof(*nodes));
3756                 lightinfo->svbsp = svbsp;
3757         }
3758         Mem_Free(nodes);
3759 }
3760
3761 static void Mod_GenerateLightmaps_CreateLights(dp_model_t *model)
3762 {
3763         int index;
3764         int result;
3765         lightmaplight_t *lightinfo;
3766         float origin[3];
3767         float radius;
3768         float color[3];
3769         mod_generatelightmaps_numlights = 0;
3770         for (index = 0;;index++)
3771         {
3772                 result = R_Shadow_GetRTLightInfo(index, origin, &radius, color);
3773                 if (result < 0)
3774                         break;
3775                 if (result > 0)
3776                         mod_generatelightmaps_numlights++;
3777         }
3778         if (mod_generatelightmaps_numlights > 0)
3779         {
3780                 mod_generatelightmaps_lightinfo = (lightmaplight_t *)Mem_Alloc(tempmempool, mod_generatelightmaps_numlights * sizeof(*mod_generatelightmaps_lightinfo));
3781                 lightinfo = mod_generatelightmaps_lightinfo;
3782                 for (index = 0;;index++)
3783                 {
3784                         result = R_Shadow_GetRTLightInfo(index, lightinfo->origin, &lightinfo->radius, lightinfo->color);
3785                         if (result < 0)
3786                                 break;
3787                         if (result > 0)
3788                                 lightinfo++;
3789                 }
3790         }
3791         for (index = 0, lightinfo = mod_generatelightmaps_lightinfo;index < mod_generatelightmaps_numlights;index++, lightinfo++)
3792         {
3793                 lightinfo->iradius = 1.0f / lightinfo->radius;
3794                 lightinfo->radius2 = lightinfo->radius * lightinfo->radius;
3795                 // TODO: compute svbsp
3796                 Mod_GenerateLightmaps_CreateLights_ComputeSVBSP(model, lightinfo);
3797         }
3798 }
3799
3800 static void Mod_GenerateLightmaps_DestroyLights(dp_model_t *model)
3801 {
3802         int i;
3803         if (mod_generatelightmaps_lightinfo)
3804         {
3805                 for (i = 0;i < mod_generatelightmaps_numlights;i++)
3806                         if (mod_generatelightmaps_lightinfo[i].svbsp.nodes)
3807                                 Mem_Free(mod_generatelightmaps_lightinfo[i].svbsp.nodes);
3808                 Mem_Free(mod_generatelightmaps_lightinfo);
3809         }
3810         mod_generatelightmaps_lightinfo = NULL;
3811         mod_generatelightmaps_numlights = 0;
3812 }
3813
3814 static qboolean Mod_GenerateLightmaps_SamplePoint_SVBSP(const svbsp_t *svbsp, const float *pos)
3815 {
3816         const svbsp_node_t *node;
3817         const svbsp_node_t *nodes = svbsp->nodes;
3818         int num = 0;
3819         while (num >= 0)
3820         {
3821                 node = nodes + num;
3822                 num = node->children[DotProduct(node->plane, pos) < node->plane[3]];
3823         }
3824         return num == -1; // true if empty, false if solid (shadowed)
3825 }
3826
3827 static void Mod_GenerateLightmaps_SamplePoint(const float *pos, const float *normal, float *sample, int numoffsets, const float *offsets)
3828 {
3829         int i;
3830         float relativepoint[3];
3831         float color[3];
3832         float offsetpos[3];
3833         float dist;
3834         float dist2;
3835         float intensity;
3836         int offsetindex;
3837         int hits;
3838         int tests;
3839         const lightmaplight_t *lightinfo;
3840         trace_t trace;
3841         for (i = 0;i < 5*3;i++)
3842                 sample[i] = 0.0f;
3843         for (i = 0, lightinfo = mod_generatelightmaps_lightinfo;i < mod_generatelightmaps_numlights;i++, lightinfo++)
3844         {
3845                 //R_SampleRTLights(pos, sample, numoffsets, offsets);
3846                 VectorSubtract(lightinfo->origin, pos, relativepoint);
3847                 // don't accept light from behind a surface, it causes bad shading
3848                 if (normal && DotProduct(relativepoint, normal) <= 0)
3849                         continue;
3850                 dist2 = VectorLength2(relativepoint);
3851                 if (dist2 >= lightinfo->radius2)
3852                         continue;
3853                 dist = sqrt(dist2) * lightinfo->iradius;
3854                 intensity = dist < 1 ? ((1.0f - dist) * r_shadow_lightattenuationlinearscale.value / (r_shadow_lightattenuationdividebias.value + dist*dist)) : 0;
3855                 if (intensity <= 0)
3856                         continue;
3857                 if (cl.worldmodel && cl.worldmodel->TraceLine && numoffsets > 0)
3858                 {
3859                         hits = 0;
3860                         tests = 1;
3861                         if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, pos))
3862                                 hits++;
3863                         for (offsetindex = 1;offsetindex < numoffsets;offsetindex++)
3864                         {
3865                                 VectorAdd(pos, offsets + 3*offsetindex, offsetpos);
3866                                 if (!normal)
3867                                 {
3868                                         // for light grid we'd better check visibility of the offset point
3869                                         cl.worldmodel->TraceLine(cl.worldmodel, NULL, NULL, &trace, pos, offsetpos, SUPERCONTENTS_VISBLOCKERMASK);
3870                                         if (trace.fraction < 1)
3871                                                 VectorLerp(pos, trace.fraction, offsetpos, offsetpos);
3872                                 }
3873                                 tests++;
3874                                 if (Mod_GenerateLightmaps_SamplePoint_SVBSP(&lightinfo->svbsp, offsetpos))
3875                                         hits++;
3876                         }
3877                         if (!hits)
3878                                 continue;
3879                         // scale intensity according to how many rays succeeded
3880                         // we know one test is valid, half of the rest will fail...
3881                         //if (normal && tests > 1)
3882                         //      intensity *= (tests - 1.0f) / tests;
3883                         intensity *= (float)hits / tests;
3884                 }
3885                 // scale down intensity to add to both ambient and diffuse
3886                 //intensity *= 0.5f;
3887                 VectorNormalize(relativepoint);
3888                 VectorScale(lightinfo->color, intensity, color);
3889                 VectorMA(sample    , 0.5f            , color, sample    );
3890                 VectorMA(sample + 3, relativepoint[0], color, sample + 3);
3891                 VectorMA(sample + 6, relativepoint[1], color, sample + 6);
3892                 VectorMA(sample + 9, relativepoint[2], color, sample + 9);
3893                 // calculate a weighted average light direction as well
3894                 intensity *= VectorLength(color);
3895                 VectorMA(sample + 12, intensity, relativepoint, sample + 12);
3896         }
3897 }
3898
3899 static void Mod_GenerateLightmaps_LightmapSample(const float *pos, const float *normal, unsigned char *lm_bgr, unsigned char *lm_dir)
3900 {
3901         float sample[5*3];
3902         float color[3];
3903         float dir[3];
3904         float f;
3905         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[0], mod_generatelightmaps_offsets[0][0]);
3906         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3907         VectorCopy(sample + 12, dir);
3908         VectorNormalize(dir);
3909         //VectorAdd(dir, normal, dir);
3910         //VectorNormalize(dir);
3911         f = DotProduct(dir, normal);
3912         f = max(0, f) * 255.0f;
3913         VectorScale(sample, f, color);
3914         //VectorCopy(normal, dir);
3915         VectorSet(dir, (dir[0]+1.0f)*127.5f, (dir[1]+1.0f)*127.5f, (dir[2]+1.0f)*127.5f);
3916         lm_bgr[0] = (unsigned char)bound(0.0f, color[2], 255.0f);
3917         lm_bgr[1] = (unsigned char)bound(0.0f, color[1], 255.0f);
3918         lm_bgr[2] = (unsigned char)bound(0.0f, color[0], 255.0f);
3919         lm_bgr[3] = 255;
3920         lm_dir[0] = (unsigned char)dir[2];
3921         lm_dir[1] = (unsigned char)dir[1];
3922         lm_dir[2] = (unsigned char)dir[0];
3923         lm_dir[3] = 255;
3924 }
3925
3926 static void Mod_GenerateLightmaps_VertexSample(const float *pos, const float *normal, float *vertex_color)
3927 {
3928         float sample[5*3];
3929         Mod_GenerateLightmaps_SamplePoint(pos, normal, sample, mod_generatelightmaps_numoffsets[1], mod_generatelightmaps_offsets[1][0]);
3930         VectorCopy(sample, vertex_color);
3931 }
3932
3933 static void Mod_GenerateLightmaps_GridSample(const float *pos, q3dlightgrid_t *s)
3934 {
3935         float sample[5*3];
3936         float ambient[3];
3937         float diffuse[3];
3938         float dir[3];
3939         Mod_GenerateLightmaps_SamplePoint(pos, NULL, sample, mod_generatelightmaps_numoffsets[2], mod_generatelightmaps_offsets[2][0]);
3940         // calculate the direction we'll use to reduce the sample to a directional light source
3941         VectorCopy(sample + 12, dir);
3942         //VectorSet(dir, sample[3] + sample[4] + sample[5], sample[6] + sample[7] + sample[8], sample[9] + sample[10] + sample[11]);
3943         VectorNormalize(dir);
3944         // extract the diffuse color along the chosen direction and scale it
3945         diffuse[0] = (dir[0]*sample[3] + dir[1]*sample[6] + dir[2]*sample[ 9] + sample[ 0]) * 127.5f;
3946         diffuse[1] = (dir[0]*sample[4] + dir[1]*sample[7] + dir[2]*sample[10] + sample[ 1]) * 127.5f;
3947         diffuse[2] = (dir[0]*sample[5] + dir[1]*sample[8] + dir[2]*sample[11] + sample[ 2]) * 127.5f;
3948         // scale the ambient from 0-2 to 0-255 and subtract some of diffuse
3949         VectorScale(sample, 127.5f, ambient);
3950         VectorMA(ambient, -0.333f, diffuse, ambient);
3951         // encode to the grid format
3952         s->ambientrgb[0] = (unsigned char)bound(0.0f, ambient[0], 255.0f);
3953         s->ambientrgb[1] = (unsigned char)bound(0.0f, ambient[1], 255.0f);
3954         s->ambientrgb[2] = (unsigned char)bound(0.0f, ambient[2], 255.0f);
3955         s->diffusergb[0] = (unsigned char)bound(0.0f, diffuse[0], 255.0f);
3956         s->diffusergb[1] = (unsigned char)bound(0.0f, diffuse[1], 255.0f);
3957         s->diffusergb[2] = (unsigned char)bound(0.0f, diffuse[2], 255.0f);
3958         if (dir[2] >= 0.99f) {s->diffusepitch = 0;s->diffuseyaw = 0;}
3959         else if (dir[2] <= -0.99f) {s->diffusepitch = 128;s->diffuseyaw = 0;}
3960         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));}
3961 }
3962
3963 static void Mod_GenerateLightmaps_InitSampleOffsets(dp_model_t *model)
3964 {
3965         float radius[3];
3966         float temp[3];
3967         int i, j;
3968         memset(mod_generatelightmaps_offsets, 0, sizeof(mod_generatelightmaps_offsets));
3969         mod_generatelightmaps_numoffsets[0] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_lightmapsamples.integer);
3970         mod_generatelightmaps_numoffsets[1] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_vertexsamples.integer);
3971         mod_generatelightmaps_numoffsets[2] = min(MAX_LIGHTMAPSAMPLES, mod_generatelightmaps_gridsamples.integer);
3972         radius[0] = mod_generatelightmaps_lightmapradius.value;
3973         radius[1] = mod_generatelightmaps_vertexradius.value;
3974         radius[2] = mod_generatelightmaps_gridradius.value;
3975         for (i = 0;i < 3;i++)
3976         {
3977                 for (j = 1;j < mod_generatelightmaps_numoffsets[i];j++)
3978                 {
3979                         VectorRandom(temp);
3980                         VectorScale(temp, radius[i], mod_generatelightmaps_offsets[i][j]);
3981                 }
3982         }
3983 }
3984
3985 static void Mod_GenerateLightmaps_DestroyLightmaps(dp_model_t *model)
3986 {
3987         msurface_t *surface;
3988         int surfaceindex;
3989         int i;
3990         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
3991         {
3992                 surface = model->data_surfaces + surfaceindex;
3993                 surface->lightmaptexture = NULL;
3994                 surface->deluxemaptexture = NULL;
3995         }
3996         if (model->brushq3.data_lightmaps)
3997         {
3998                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
3999                         if (model->brushq3.data_lightmaps[i])
4000                                 R_FreeTexture(model->brushq3.data_lightmaps[i]);
4001                 Mem_Free(model->brushq3.data_lightmaps);
4002                 model->brushq3.data_lightmaps = NULL;
4003         }
4004         if (model->brushq3.data_deluxemaps)
4005         {
4006                 for (i = 0;i < model->brushq3.num_mergedlightmaps;i++)
4007                         if (model->brushq3.data_deluxemaps[i])
4008                                 R_FreeTexture(model->brushq3.data_deluxemaps[i]);
4009                 Mem_Free(model->brushq3.data_deluxemaps);
4010                 model->brushq3.data_deluxemaps = NULL;
4011         }
4012 }
4013
4014 static void Mod_GenerateLightmaps_UnweldTriangles(dp_model_t *model)
4015 {
4016         msurface_t *surface;
4017         int surfaceindex;
4018         int vertexindex;
4019         int outvertexindex;
4020         int i;
4021         const int *e;
4022         surfmesh_t oldsurfmesh;
4023         size_t size;
4024         unsigned char *data;
4025         oldsurfmesh = model->surfmesh;
4026         model->surfmesh.num_triangles = oldsurfmesh.num_triangles;
4027         model->surfmesh.num_vertices = oldsurfmesh.num_triangles * 3;
4028         size = 0;
4029         size += model->surfmesh.num_vertices * sizeof(float[3]);
4030         size += model->surfmesh.num_vertices * sizeof(float[3]);
4031         size += model->surfmesh.num_vertices * sizeof(float[3]);
4032         size += model->surfmesh.num_vertices * sizeof(float[3]);
4033         size += model->surfmesh.num_vertices * sizeof(float[2]);
4034         size += model->surfmesh.num_vertices * sizeof(float[2]);
4035         size += model->surfmesh.num_vertices * sizeof(float[4]);
4036         data = (unsigned char *)Mem_Alloc(model->mempool, size);
4037         model->surfmesh.data_vertex3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4038         model->surfmesh.data_normal3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4039         model->surfmesh.data_svector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4040         model->surfmesh.data_tvector3f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[3]);
4041         model->surfmesh.data_texcoordtexture2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
4042         model->surfmesh.data_texcoordlightmap2f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[2]);
4043         model->surfmesh.data_lightmapcolor4f = (float *)data;data += model->surfmesh.num_vertices * sizeof(float[4]);
4044         if (model->surfmesh.num_vertices > 65536)
4045                 model->surfmesh.data_element3s = NULL;
4046
4047         if (model->surfmesh.data_element3i_indexbuffer)
4048                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3i_indexbuffer);
4049         model->surfmesh.data_element3i_indexbuffer = NULL;
4050         if (model->surfmesh.data_element3s_indexbuffer)
4051                 R_Mesh_DestroyMeshBuffer(model->surfmesh.data_element3s_indexbuffer);
4052         model->surfmesh.data_element3s_indexbuffer = NULL;
4053         if (model->surfmesh.vbo_vertexbuffer)
4054                 R_Mesh_DestroyMeshBuffer(model->surfmesh.vbo_vertexbuffer);
4055         model->surfmesh.vbo_vertexbuffer = 0;
4056
4057         // convert all triangles to unique vertex data
4058         outvertexindex = 0;
4059         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4060         {
4061                 surface = model->data_surfaces + surfaceindex;
4062                 surface->num_firstvertex = outvertexindex;
4063                 surface->num_vertices = surface->num_triangles*3;
4064                 e = oldsurfmesh.data_element3i + surface->num_firsttriangle*3;
4065                 for (i = 0;i < surface->num_triangles*3;i++)
4066                 {
4067                         vertexindex = e[i];
4068                         model->surfmesh.data_vertex3f[outvertexindex*3+0] = oldsurfmesh.data_vertex3f[vertexindex*3+0];
4069                         model->surfmesh.data_vertex3f[outvertexindex*3+1] = oldsurfmesh.data_vertex3f[vertexindex*3+1];
4070                         model->surfmesh.data_vertex3f[outvertexindex*3+2] = oldsurfmesh.data_vertex3f[vertexindex*3+2];
4071                         model->surfmesh.data_normal3f[outvertexindex*3+0] = oldsurfmesh.data_normal3f[vertexindex*3+0];
4072                         model->surfmesh.data_normal3f[outvertexindex*3+1] = oldsurfmesh.data_normal3f[vertexindex*3+1];
4073                         model->surfmesh.data_normal3f[outvertexindex*3+2] = oldsurfmesh.data_normal3f[vertexindex*3+2];
4074                         model->surfmesh.data_svector3f[outvertexindex*3+0] = oldsurfmesh.data_svector3f[vertexindex*3+0];
4075                         model->surfmesh.data_svector3f[outvertexindex*3+1] = oldsurfmesh.data_svector3f[vertexindex*3+1];
4076                         model->surfmesh.data_svector3f[outvertexindex*3+2] = oldsurfmesh.data_svector3f[vertexindex*3+2];
4077                         model->surfmesh.data_tvector3f[outvertexindex*3+0] = oldsurfmesh.data_tvector3f[vertexindex*3+0];
4078                         model->surfmesh.data_tvector3f[outvertexindex*3+1] = oldsurfmesh.data_tvector3f[vertexindex*3+1];
4079                         model->surfmesh.data_tvector3f[outvertexindex*3+2] = oldsurfmesh.data_tvector3f[vertexindex*3+2];
4080                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+0];
4081                         model->surfmesh.data_texcoordtexture2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordtexture2f[vertexindex*2+1];
4082                         if (oldsurfmesh.data_texcoordlightmap2f)
4083                         {
4084                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+0] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+0];
4085                                 model->surfmesh.data_texcoordlightmap2f[outvertexindex*2+1] = oldsurfmesh.data_texcoordlightmap2f[vertexindex*2+1];
4086                         }
4087                         if (oldsurfmesh.data_lightmapcolor4f)
4088                         {
4089                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+0] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+0];
4090                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+1] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+1];
4091                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+2] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+2];
4092                                 model->surfmesh.data_lightmapcolor4f[outvertexindex*4+3] = oldsurfmesh.data_lightmapcolor4f[vertexindex*4+3];
4093                         }
4094                         else
4095                                 Vector4Set(model->surfmesh.data_lightmapcolor4f + 4*outvertexindex, 1, 1, 1, 1);
4096                         model->surfmesh.data_element3i[surface->num_firsttriangle*3+i] = outvertexindex;
4097                         outvertexindex++;
4098                 }
4099         }
4100         if (model->surfmesh.data_element3s)
4101                 for (i = 0;i < model->surfmesh.num_triangles*3;i++)
4102                         model->surfmesh.data_element3s[i] = model->surfmesh.data_element3i[i];
4103
4104         // find and update all submodels to use this new surfmesh data
4105         for (i = 0;i < model->brush.numsubmodels;i++)
4106                 model->brush.submodels[i]->surfmesh = model->surfmesh;
4107 }
4108
4109 static void Mod_GenerateLightmaps_CreateTriangleInformation(dp_model_t *model)
4110 {
4111         msurface_t *surface;
4112         int surfaceindex;
4113         int i;
4114         int axis;
4115         float normal[3];
4116         const int *e;
4117         lightmaptriangle_t *triangle;
4118         // generate lightmap triangle structs
4119         mod_generatelightmaps_lightmaptriangles = (lightmaptriangle_t *)Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4120         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4121         {
4122                 surface = model->data_surfaces + surfaceindex;
4123                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4124                 for (i = 0;i < surface->num_triangles;i++)
4125                 {
4126                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4127                         triangle->triangleindex = surface->num_firsttriangle+i;
4128                         triangle->surfaceindex = surfaceindex;
4129                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+0], triangle->vertex[0]);
4130                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+1], triangle->vertex[1]);
4131                         VectorCopy(model->surfmesh.data_vertex3f + 3*e[i*3+2], triangle->vertex[2]);
4132                         // calculate bounds of triangle
4133                         triangle->mins[0] = min(triangle->vertex[0][0], min(triangle->vertex[1][0], triangle->vertex[2][0]));
4134                         triangle->mins[1] = min(triangle->vertex[0][1], min(triangle->vertex[1][1], triangle->vertex[2][1]));
4135                         triangle->mins[2] = min(triangle->vertex[0][2], min(triangle->vertex[1][2], triangle->vertex[2][2]));
4136                         triangle->maxs[0] = max(triangle->vertex[0][0], max(triangle->vertex[1][0], triangle->vertex[2][0]));
4137                         triangle->maxs[1] = max(triangle->vertex[0][1], max(triangle->vertex[1][1], triangle->vertex[2][1]));
4138                         triangle->maxs[2] = max(triangle->vertex[0][2], max(triangle->vertex[1][2], triangle->vertex[2][2]));
4139                         // pick an axial projection based on the triangle normal
4140                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], normal);
4141                         axis = 0;
4142                         if (fabs(normal[1]) > fabs(normal[axis]))
4143                                 axis = 1;
4144                         if (fabs(normal[2]) > fabs(normal[axis]))
4145                                 axis = 2;
4146                         triangle->axis = axis;
4147                 }
4148         }
4149 }
4150
4151 static void Mod_GenerateLightmaps_DestroyTriangleInformation(dp_model_t *model)
4152 {
4153         if (mod_generatelightmaps_lightmaptriangles)
4154                 Mem_Free(mod_generatelightmaps_lightmaptriangles);
4155         mod_generatelightmaps_lightmaptriangles = NULL;
4156 }
4157
4158 float lmaxis[3][3] = {{1, 0, 0}, {0, 1, 0}, {0, 0, 1}};
4159
4160 static void Mod_GenerateLightmaps_CreateLightmaps(dp_model_t *model)
4161 {
4162         msurface_t *surface;
4163         int surfaceindex;
4164         int lightmapindex;
4165         int lightmapnumber;
4166         int i;
4167         int j;
4168         int k;
4169         int x;
4170         int y;
4171         int axis;
4172         int axis1;
4173         int axis2;
4174         int retry;
4175         int pixeloffset;
4176         float trianglenormal[3];
4177         float samplecenter[3];
4178         float samplenormal[3];
4179         float temp[3];
4180         float lmiscale[2];
4181         float slopex;
4182         float slopey;
4183         float slopebase;
4184         float lmscalepixels;
4185         float lmmins;
4186         float lmmaxs;
4187         float lm_basescalepixels;
4188         int lm_borderpixels;
4189         int lm_texturesize;
4190         //int lm_maxpixels;
4191         const int *e;
4192         lightmaptriangle_t *triangle;
4193         unsigned char *lightmappixels;
4194         unsigned char *deluxemappixels;
4195         mod_alloclightmap_state_t lmstate;
4196         char vabuf[1024];
4197
4198         // generate lightmap projection information for all triangles
4199         if (model->texturepool == NULL)
4200                 model->texturepool = R_AllocTexturePool();
4201         lm_basescalepixels = 1.0f / max(0.0001f, mod_generatelightmaps_unitspersample.value);
4202         lm_borderpixels = mod_generatelightmaps_borderpixels.integer;
4203         lm_texturesize = bound(lm_borderpixels*2+1, 64, (int)vid.maxtexturesize_2d);
4204         //lm_maxpixels = lm_texturesize-(lm_borderpixels*2+1);
4205         Mod_AllocLightmap_Init(&lmstate, lm_texturesize, lm_texturesize);
4206         lightmapnumber = 0;
4207         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4208         {
4209                 surface = model->data_surfaces + surfaceindex;
4210                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4211                 lmscalepixels = lm_basescalepixels;
4212                 for (retry = 0;retry < 30;retry++)
4213                 {
4214                         // after a couple failed attempts, degrade quality to make it fit
4215                         if (retry > 1)
4216                                 lmscalepixels *= 0.5f;
4217                         for (i = 0;i < surface->num_triangles;i++)
4218                         {
4219                                 triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4220                                 triangle->lightmapindex = lightmapnumber;
4221                                 // calculate lightmap bounds in 3D pixel coordinates, limit size,
4222                                 // pick two planar axes for projection
4223                                 // lightmap coordinates here are in pixels
4224                                 // lightmap projections are snapped to pixel grid explicitly, such
4225                                 // that two neighboring triangles sharing an edge and projection
4226                                 // axis will have identical sampl espacing along their shared edge
4227                                 k = 0;
4228                                 for (j = 0;j < 3;j++)
4229                                 {
4230                                         if (j == triangle->axis)
4231                                                 continue;
4232                                         lmmins = floor(triangle->mins[j]*lmscalepixels)-lm_borderpixels;
4233                                         lmmaxs = floor(triangle->maxs[j]*lmscalepixels)+lm_borderpixels;
4234                                         triangle->lmsize[k] = (int)(lmmaxs-lmmins);
4235                                         triangle->lmbase[k] = lmmins/lmscalepixels;
4236                                         triangle->lmscale[k] = lmscalepixels;
4237                                         k++;
4238                                 }
4239                                 if (!Mod_AllocLightmap_Block(&lmstate, triangle->lmsize[0], triangle->lmsize[1], &triangle->lmoffset[0], &triangle->lmoffset[1]))
4240                                         break;
4241                         }
4242                         // if all fit in this texture, we're done with this surface
4243                         if (i == surface->num_triangles)
4244                                 break;
4245                         // if we haven't maxed out the lightmap size yet, we retry the
4246                         // entire surface batch...
4247                         if (lm_texturesize * 2 <= min(mod_generatelightmaps_texturesize.integer, (int)vid.maxtexturesize_2d))
4248                         {
4249                                 lm_texturesize *= 2;
4250                                 surfaceindex = -1;
4251                                 lightmapnumber = 0;
4252                                 Mod_AllocLightmap_Free(&lmstate);
4253                                 Mod_AllocLightmap_Init(&lmstate, lm_texturesize, lm_texturesize);
4254                                 break;
4255                         }
4256                         // if we have maxed out the lightmap size, and this triangle does
4257                         // not fit in the same texture as the rest of the surface, we have
4258                         // to retry the entire surface in a new texture (can only use one)
4259                         // with multiple retries, the lightmap quality degrades until it
4260                         // fits (or gives up)
4261                         if (surfaceindex > 0)
4262                                 lightmapnumber++;
4263                         Mod_AllocLightmap_Reset(&lmstate);
4264                 }
4265         }
4266         lightmapnumber++;
4267         Mod_AllocLightmap_Free(&lmstate);
4268
4269         // now put triangles together into lightmap textures, and do not allow
4270         // triangles of a surface to go into different textures (as that would
4271         // require rewriting the surface list)
4272         model->brushq3.deluxemapping_modelspace = true;
4273         model->brushq3.deluxemapping = true;
4274         model->brushq3.num_mergedlightmaps = lightmapnumber;
4275         model->brushq3.data_lightmaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4276         model->brushq3.data_deluxemaps = (rtexture_t **)Mem_Alloc(model->mempool, model->brushq3.num_mergedlightmaps * sizeof(rtexture_t *));
4277         lightmappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4278         deluxemappixels = (unsigned char *)Mem_Alloc(tempmempool, model->brushq3.num_mergedlightmaps * lm_texturesize * lm_texturesize * 4);
4279         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4280         {
4281                 surface = model->data_surfaces + surfaceindex;
4282                 e = model->surfmesh.data_element3i + surface->num_firsttriangle*3;
4283                 for (i = 0;i < surface->num_triangles;i++)
4284                 {
4285                         triangle = &mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle+i];
4286                         TriangleNormal(triangle->vertex[0], triangle->vertex[1], triangle->vertex[2], trianglenormal);
4287                         VectorNormalize(trianglenormal);
4288                         VectorCopy(trianglenormal, samplenormal); // FIXME: this is supposed to be interpolated per pixel from vertices
4289                         axis = triangle->axis;
4290                         axis1 = axis == 0 ? 1 : 0;
4291                         axis2 = axis == 2 ? 1 : 2;
4292                         lmiscale[0] = 1.0f / triangle->lmscale[0];
4293                         lmiscale[1] = 1.0f / triangle->lmscale[1];
4294                         if (trianglenormal[axis] < 0)
4295                                 VectorNegate(trianglenormal, trianglenormal);
4296                         CrossProduct(lmaxis[axis2], trianglenormal, temp);slopex = temp[axis] / temp[axis1];
4297                         CrossProduct(lmaxis[axis1], trianglenormal, temp);slopey = temp[axis] / temp[axis2];
4298                         slopebase = triangle->vertex[0][axis] - triangle->vertex[0][axis1]*slopex - triangle->vertex[0][axis2]*slopey;
4299                         for (j = 0;j < 3;j++)
4300                         {
4301                                 float *t2f = model->surfmesh.data_texcoordlightmap2f + e[i*3+j]*2;
4302                                 t2f[0] = ((triangle->vertex[j][axis1] - triangle->lmbase[0]) * triangle->lmscale[0] + triangle->lmoffset[0]) / lm_texturesize;
4303                                 t2f[1] = ((triangle->vertex[j][axis2] - triangle->lmbase[1]) * triangle->lmscale[1] + triangle->lmoffset[1]) / lm_texturesize;
4304 #if 0
4305                                 samplecenter[axis1] = (t2f[0]*lm_texturesize-triangle->lmoffset[0])*lmiscale[0] + triangle->lmbase[0];
4306                                 samplecenter[axis2] = (t2f[1]*lm_texturesize-triangle->lmoffset[1])*lmiscale[1] + triangle->lmbase[1];
4307                                 samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4308                                 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]);
4309 #endif
4310                         }
4311
4312 #if 0
4313                         switch (axis)
4314                         {
4315                         default:
4316                         case 0:
4317                                 forward[0] = 0;
4318                                 forward[1] = 1.0f / triangle->lmscale[0];
4319                                 forward[2] = 0;
4320                                 left[0] = 0;
4321                                 left[1] = 0;
4322                                 left[2] = 1.0f / triangle->lmscale[1];
4323                                 up[0] = 1.0f;
4324                                 up[1] = 0;
4325                                 up[2] = 0;
4326                                 origin[0] = 0;
4327                                 origin[1] = triangle->lmbase[0];
4328                                 origin[2] = triangle->lmbase[1];
4329                                 break;
4330                         case 1:
4331                                 forward[0] = 1.0f / triangle->lmscale[0];
4332                                 forward[1] = 0;
4333                                 forward[2] = 0;
4334                                 left[0] = 0;
4335                                 left[1] = 0;
4336                                 left[2] = 1.0f / triangle->lmscale[1];
4337                                 up[0] = 0;
4338                                 up[1] = 1.0f;
4339                                 up[2] = 0;
4340                                 origin[0] = triangle->lmbase[0];
4341                                 origin[1] = 0;
4342                                 origin[2] = triangle->lmbase[1];
4343                                 break;
4344                         case 2:
4345                                 forward[0] = 1.0f / triangle->lmscale[0];
4346                                 forward[1] = 0;
4347                                 forward[2] = 0;
4348                                 left[0] = 0;
4349                                 left[1] = 1.0f / triangle->lmscale[1];
4350                                 left[2] = 0;
4351                                 up[0] = 0;
4352                                 up[1] = 0;
4353                                 up[2] = 1.0f;
4354                                 origin[0] = triangle->lmbase[0];
4355                                 origin[1] = triangle->lmbase[1];
4356                                 origin[2] = 0;
4357                                 break;
4358                         }
4359                         Matrix4x4_FromVectors(&backmatrix, forward, left, up, origin);
4360 #endif
4361 #define LM_DIST_EPSILON (1.0f / 32.0f)
4362                         for (y = 0;y < triangle->lmsize[1];y++)
4363                         {
4364                                 pixeloffset = ((triangle->lightmapindex * lm_texturesize + y + triangle->lmoffset[1]) * lm_texturesize + triangle->lmoffset[0]) * 4;
4365                                 for (x = 0;x < triangle->lmsize[0];x++, pixeloffset += 4)
4366                                 {
4367                                         samplecenter[axis1] = (x+0.5f)*lmiscale[0] + triangle->lmbase[0];
4368                                         samplecenter[axis2] = (y+0.5f)*lmiscale[1] + triangle->lmbase[1];
4369                                         samplecenter[axis] = samplecenter[axis1]*slopex + samplecenter[axis2]*slopey + slopebase;
4370                                         VectorMA(samplecenter, 0.125f, samplenormal, samplecenter);
4371                                         Mod_GenerateLightmaps_LightmapSample(samplecenter, samplenormal, lightmappixels + pixeloffset, deluxemappixels + pixeloffset);
4372                                 }
4373                         }
4374                 }
4375         }
4376
4377         for (lightmapindex = 0;lightmapindex < model->brushq3.num_mergedlightmaps;lightmapindex++)
4378         {
4379                 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);
4380                 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);
4381         }
4382
4383         if (lightmappixels)
4384                 Mem_Free(lightmappixels);
4385         if (deluxemappixels)
4386                 Mem_Free(deluxemappixels);
4387
4388         for (surfaceindex = 0;surfaceindex < model->num_surfaces;surfaceindex++)
4389         {
4390                 surface = model->data_surfaces + surfaceindex;
4391                 if (!surface->num_triangles)
4392                         continue;
4393                 lightmapindex = mod_generatelightmaps_lightmaptriangles[surface->num_firsttriangle].lightmapindex;
4394                 surface->lightmaptexture = model->brushq3.data_lightmaps[lightmapindex];
4395                 surface->deluxemaptexture = model->brushq3.data_deluxemaps[lightmapindex];
4396                 surface->lightmapinfo = NULL;
4397         }
4398
4399         model->brush.LightPoint = Mod_GenerateLightmaps_LightPoint;
4400         model->brushq1.lightdata = NULL;
4401         model->brushq1.lightmapupdateflags = NULL;
4402         model->brushq1.firstrender = false;
4403         model->brushq1.num_lightstyles = 0;
4404         model->brushq1.data_lightstyleinfo = NULL;
4405         for (i = 0;i < model->brush.numsubmodels;i++)
4406         {
4407                 model->brush.submodels[i]->brushq1.lightmapupdateflags = NULL;
4408                 model->brush.submodels[i]->brushq1.firstrender = false;
4409                 model->brush.submodels[i]->brushq1.num_lightstyles = 0;
4410                 model->brush.submodels[i]->brushq1.data_lightstyleinfo = NULL;
4411         }
4412 }
4413
4414 static void Mod_GenerateLightmaps_UpdateVertexColors(dp_model_t *model)
4415 {
4416         int i;
4417         for (i = 0;i < model->surfmesh.num_vertices;i++)
4418                 Mod_GenerateLightmaps_VertexSample(model->surfmesh.data_vertex3f + 3*i, model->surfmesh.data_normal3f + 3*i, model->surfmesh.data_lightmapcolor4f + 4*i);
4419 }
4420
4421 static void Mod_GenerateLightmaps_UpdateLightGrid(dp_model_t *model)
4422 {
4423         int x;
4424         int y;
4425         int z;
4426         int index = 0;
4427         float pos[3];
4428         for (z = 0;z < model->brushq3.num_lightgrid_isize[2];z++)
4429         {
4430                 pos[2] = (model->brushq3.num_lightgrid_imins[2] + z + 0.5f) * model->brushq3.num_lightgrid_cellsize[2];
4431                 for (y = 0;y < model->brushq3.num_lightgrid_isize[1];y++)
4432                 {
4433                         pos[1] = (model->brushq3.num_lightgrid_imins[1] + y + 0.5f) * model->brushq3.num_lightgrid_cellsize[1];
4434                         for (x = 0;x < model->brushq3.num_lightgrid_isize[0];x++, index++)
4435                         {
4436                                 pos[0] = (model->brushq3.num_lightgrid_imins[0] + x + 0.5f) * model->brushq3.num_lightgrid_cellsize[0];
4437                                 Mod_GenerateLightmaps_GridSample(pos, model->brushq3.data_lightgrid + index);
4438                         }
4439                 }
4440         }
4441 }
4442
4443 extern cvar_t mod_q3bsp_nolightmaps;
4444 static void Mod_GenerateLightmaps(dp_model_t *model)
4445 {
4446         //lightmaptriangle_t *lightmaptriangles = Mem_Alloc(model->mempool, model->surfmesh.num_triangles * sizeof(lightmaptriangle_t));
4447         dp_model_t *oldloadmodel = loadmodel;
4448         loadmodel = model;
4449
4450         Mod_GenerateLightmaps_InitSampleOffsets(model);
4451         Mod_GenerateLightmaps_DestroyLightmaps(model);
4452         Mod_GenerateLightmaps_UnweldTriangles(model);
4453         Mod_GenerateLightmaps_CreateTriangleInformation(model);
4454         Mod_GenerateLightmaps_CreateLights(model);
4455         if(!mod_q3bsp_nolightmaps.integer)
4456                 Mod_GenerateLightmaps_CreateLightmaps(model);
4457         Mod_GenerateLightmaps_UpdateVertexColors(model);
4458         Mod_GenerateLightmaps_UpdateLightGrid(model);
4459         Mod_GenerateLightmaps_DestroyLights(model);
4460         Mod_GenerateLightmaps_DestroyTriangleInformation(model);
4461
4462         loadmodel = oldloadmodel;
4463 }
4464
4465 static void Mod_GenerateLightmaps_f(void)
4466 {
4467         if (Cmd_Argc() != 1)
4468         {
4469                 Con_Printf("usage: mod_generatelightmaps\n");
4470                 return;
4471         }
4472         if (!cl.worldmodel)
4473         {
4474                 Con_Printf("no worldmodel loaded\n");
4475                 return;
4476         }
4477         Mod_GenerateLightmaps(cl.worldmodel);
4478 }